Rocket

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commit 61f107f550d895c26eff3b8d78b6fdd0c04d9822
parent 3eb873d89dc748fce867216da913378fb212d2e5
Author: Sergio Benitez <sb@sergio.bz>
Date:   Wed, 19 Sep 2018 21:14:30 -0700

Reimplement route attribute as a proc-macro.

This commits also implement the query reform from #608. It also consists
of many, many breaking changes. Among them are:

  * Query parts in route paths use new query reform syntax.
  * Routing for queries is now lenient.
    - Default ranking has changed to reflect query reform.
  * Format routing matching has been fixed.
    - Routes with formats matching "accept" will always collide.
    - Routes with formats matching "content-type" require requests to
      have an equivalent content-type header to match.
    - Requests with imprecise content-types are treated as not having a
      content-type.
  * Generated routes and catchers respect visibility modifiers.
  * Raw getter methods from request were renamed and retooled.
    - In particular, the index parameter is based on segments in the
      route path, not dynamic parameters.
  * The method-based attributes no longer accept a keyed 'path'.
  * The 'rocket_codegen' crate is gone and will no longer be public.
  * The 'FormItems' iterator emits values of type 'FormItem'.
    - The internal form items' string can no longer be retrieved.
  * In general, routes are more strictly validated.
  * Logging from codegen now funnels through logging infrastructure.
  * Routing has been optimized by caching routing metadata.

Resolves #93.
Resolves #608.
Resolves #693.
Resolves #476.

Diffstat:
MREADME.md | 3+--
Mcontrib/codegen/src/database.rs | 8++++----
Mcontrib/lib/src/lib.rs | 4++--
Dcore/codegen/src/decorators/mod.rs | 3---
Dcore/codegen/src/decorators/route.rs | 395-------------------------------------------------------------------------------
Mcore/codegen/src/lib.rs | 52----------------------------------------------------
Dcore/codegen/src/parser/function.rs | 36------------------------------------
Dcore/codegen/src/parser/keyvalue.rs | 60------------------------------------------------------------
Dcore/codegen/src/parser/mod.rs | 10----------
Dcore/codegen/src/parser/param.rs | 66------------------------------------------------------------------
Dcore/codegen/src/parser/route.rs | 281-------------------------------------------------------------------------------
Dcore/codegen/src/parser/uri.rs | 123-------------------------------------------------------------------------------
Dcore/codegen/src/utils/arg_ext.rs | 22----------------------
Dcore/codegen/src/utils/generics_ext.rs | 15---------------
Dcore/codegen/src/utils/meta_item_ext.rs | 31-------------------------------
Dcore/codegen/src/utils/mod.rs | 161-------------------------------------------------------------------------------
Dcore/codegen/tests/complete-decorator.rs | 28----------------------------
Dcore/codegen/tests/custom-content-type.rs | 10----------
Dcore/codegen/tests/dynamic-paths.rs | 16----------------
Dcore/codegen/tests/empty-fn.rs | 13-------------
Dcore/codegen/tests/instanced-mounting.rs | 40----------------------------------------
Dcore/codegen/tests/issue-1-colliding-names.rs | 14--------------
Dcore/codegen/tests/methods.rs | 28----------------------------
Dcore/codegen/tests/rank_decorator.rs | 16----------------
Dcore/codegen/tests/refactored_rocket_no_lint_errors.rs | 28----------------------------
Dcore/codegen/tests/segments.rs | 20--------------------
Dcore/codegen/tests/type-alias-lints.rs | 25-------------------------
Mcore/codegen/tests/typed-uris.rs | 8++++----
Mcore/codegen_next/Cargo.toml | 7+++++--
Mcore/codegen_next/src/attribute/catch.rs | 20++++++--------------
Mcore/codegen_next/src/attribute/mod.rs | 2++
Acore/codegen_next/src/attribute/route.rs | 445+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/src/attribute/segments.rs | 142+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mcore/codegen_next/src/bang/mod.rs | 12++++++------
Mcore/codegen_next/src/derive/from_form.rs | 2+-
Mcore/codegen_next/src/http_codegen.rs | 176+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
Mcore/codegen_next/src/lib.rs | 34++++++++++++++++++++++++++++++++--
Acore/codegen_next/src/proc_macro_ext.rs | 98+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/tests/other-route.rs | 123+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/tests/route-data.rs | 58++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/tests/route-format.rs | 106+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/tests/route-params.rs | 10++++++++++
Acore/codegen_next/tests/route-ranking.rs | 55+++++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/codegen_next/tests/route.rs | 122+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mcore/codegen_next/tests/ui-fail/catch.rs | 4++--
Mcore/codegen_next/tests/ui-fail/catch.stderr | 4++--
Mcore/http/Cargo.toml | 1+
Mcore/http/src/cookies.rs | 10++++------
Mcore/http/src/lib.rs | 27++++++++++++++++-----------
Mcore/http/src/parse/indexed.rs | 11+++++++++++
Mcore/http/src/parse/uri/error.rs | 16++++++++++++++++
Mcore/http/src/raw_str.rs | 41++++++++++++++++++++++++++++++++++++++++-
Acore/http/src/route.rs | 157+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mcore/http/src/uri/from_uri_param.rs | 17++++++++++++++++-
Mcore/lib/benches/format-routing.rs | 5++---
Mcore/lib/benches/ranked-routing.rs | 5++---
Mcore/lib/benches/simple-routing.rs | 5++---
Mcore/lib/src/catcher.rs | 3+--
Mcore/lib/src/data/data.rs | 3+--
Mcore/lib/src/data/from_data.rs | 18++++++------------
Mcore/lib/src/handler.rs | 3+--
Mcore/lib/src/lib.rs | 13+++++++------
Mcore/lib/src/local/mod.rs | 5++---
Mcore/lib/src/logger.rs | 20+++++++++++---------
Mcore/lib/src/request/form/form.rs | 22++++++++++++++--------
Mcore/lib/src/request/form/form_items.rs | 391++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------
Mcore/lib/src/request/form/from_form.rs | 22+++++-----------------
Mcore/lib/src/request/form/lenient.rs | 18+++++++++++++-----
Mcore/lib/src/request/form/mod.rs | 2+-
Mcore/lib/src/request/from_request.rs | 16+++++++---------
Mcore/lib/src/request/mod.rs | 4+++-
Mcore/lib/src/request/param.rs | 29++++++++++++++---------------
Acore/lib/src/request/query.rs | 57+++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mcore/lib/src/request/request.rs | 417+++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------
Mcore/lib/src/request/state.rs | 5++---
Mcore/lib/src/response/flash.rs | 5+----
Mcore/lib/src/response/responder.rs | 5++---
Mcore/lib/src/rocket.rs | 55++++++++++++++++---------------------------------------
Mcore/lib/src/router/collider.rs | 204++++++++++++++++++++++++++++++++++++++-----------------------------------------
Mcore/lib/src/router/mod.rs | 100++++++++++++++++++++++++++++++++++++++-----------------------------------------
Mcore/lib/src/router/route.rs | 313++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------
Mcore/lib/tests/absolute-uris-okay-issue-443.rs | 3+--
Mcore/lib/tests/fairing_before_head_strip-issue-546.rs | 3+--
Mcore/lib/tests/flash-lazy-removes-issue-466.rs | 3+--
Mcore/lib/tests/form_method-issue-45.rs | 3+--
Mcore/lib/tests/form_value_decoding-issue-82.rs | 3+--
Mcore/lib/tests/head_handling.rs | 3+--
Mcore/lib/tests/limits.rs | 3+--
Mcore/lib/tests/local-request-content-type-issue-505.rs | 3+--
Mcore/lib/tests/local_request_private_cookie-issue-368.rs | 3+--
Mcore/lib/tests/nested-fairing-attaches.rs | 3+--
Mcore/lib/tests/precise-content-type-matching.rs | 3+--
Dcore/lib/tests/query-and-non-query-dont-collide.rs | 43-------------------------------------------
Mcore/lib/tests/redirect_from_catcher-issue-113.rs | 3+--
Mcore/lib/tests/responder_lifetime-issue-345.rs | 5++---
Mcore/lib/tests/route_guard.rs | 3+--
Mcore/lib/tests/segments-issues-41-86.rs | 3+--
Mcore/lib/tests/strict_and_lenient_forms.rs | 3+--
Mexamples/config/Cargo.toml | 1-
Mexamples/config/src/main.rs | 3---
Mexamples/content_types/Cargo.toml | 1-
Mexamples/content_types/src/main.rs | 3+--
Mexamples/cookies/Cargo.toml | 1-
Mexamples/cookies/src/main.rs | 3+--
Mexamples/errors/Cargo.toml | 1-
Mexamples/errors/src/main.rs | 3+--
Mexamples/fairings/Cargo.toml | 1-
Mexamples/fairings/src/main.rs | 3+--
Mexamples/form_kitchen_sink/Cargo.toml | 1-
Mexamples/form_kitchen_sink/src/main.rs | 3+--
Mexamples/form_validation/Cargo.toml | 1-
Mexamples/form_validation/src/files.rs | 4++--
Mexamples/form_validation/src/main.rs | 3+--
Mexamples/handlebars_templates/Cargo.toml | 1-
Mexamples/handlebars_templates/src/main.rs | 5++---
Mexamples/hello_2018/Cargo.toml | 1-
Mexamples/hello_2018/src/main.rs | 5++---
Mexamples/hello_person/Cargo.toml | 1-
Mexamples/hello_person/src/main.rs | 3+--
Mexamples/hello_world/Cargo.toml | 1-
Mexamples/hello_world/src/main.rs | 3+--
Mexamples/json/Cargo.toml | 1-
Mexamples/json/src/main.rs | 3+--
Mexamples/managed_queue/Cargo.toml | 1-
Mexamples/managed_queue/src/main.rs | 19++++++-------------
Mexamples/managed_queue/src/tests.rs | 2+-
Mexamples/manual_routes/src/main.rs | 9++++-----
Mexamples/manual_routes/src/tests.rs | 4++--
Mexamples/msgpack/Cargo.toml | 1-
Mexamples/msgpack/src/main.rs | 23+++++++++--------------
Mexamples/optional_redirect/Cargo.toml | 1-
Mexamples/optional_redirect/src/main.rs | 3+--
Mexamples/pastebin/Cargo.toml | 1-
Mexamples/pastebin/src/main.rs | 6++----
Mexamples/query_params/Cargo.toml | 1-
Mexamples/query_params/src/main.rs | 30++++++++++++++++++++++--------
Mexamples/query_params/src/tests.rs | 49++++++++++++++++++++++++++++++++++---------------
Mexamples/ranking/Cargo.toml | 1-
Mexamples/ranking/src/main.rs | 3+--
Mexamples/raw_sqlite/Cargo.toml | 1-
Mexamples/raw_sqlite/src/main.rs | 3+--
Mexamples/raw_upload/Cargo.toml | 1-
Mexamples/raw_upload/src/main.rs | 3+--
Mexamples/redirect/src/main.rs | 2+-
Mexamples/request_guard/Cargo.toml | 1-
Mexamples/request_guard/src/main.rs | 3+--
Mexamples/request_local_state/Cargo.toml | 1-
Mexamples/request_local_state/src/main.rs | 3+--
Mexamples/session/src/main.rs | 4++--
Mexamples/state/Cargo.toml | 1-
Mexamples/state/src/main.rs | 3+--
Mexamples/static_files/Cargo.toml | 1-
Mexamples/static_files/src/main.rs | 3---
Mexamples/stream/Cargo.toml | 1-
Mexamples/stream/src/main.rs | 3+--
Mexamples/tera_templates/src/main.rs | 6+++---
Mexamples/testing/Cargo.toml | 1-
Mexamples/testing/src/main.rs | 3+--
Mexamples/tls/Cargo.toml | 1-
Mexamples/tls/src/main.rs | 3+--
Mexamples/todo/Cargo.toml | 1-
Mexamples/todo/src/main.rs | 3+--
Mexamples/uuid/Cargo.toml | 3+--
Mexamples/uuid/src/main.rs | 14+++++---------
164 files changed, 2829 insertions(+), 2504 deletions(-)

diff --git a/README.md b/README.md @@ -10,8 +10,7 @@ Rocket is web framework for Rust (nightly) with a focus on ease-of-use, expressibility, and speed. Here's an example of a complete Rocket application: ```rust -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/contrib/codegen/src/database.rs b/contrib/codegen/src/database.rs @@ -96,15 +96,15 @@ pub fn database_attr(attr: TokenStream, input: TokenStream) -> Result<TokenStrea match pool { Ok(Ok(p)) => Ok(rocket.manage(#pool_type(p))), Err(config_error) => { - ::rocket::logger::log_err(false, + ::rocket::logger::log_error( &format!("Database configuration failure: '{}'", #name)); - ::rocket::logger::log_err(true, &format!("{}", config_error)); + ::rocket::logger::log_error_(&format!("{}", config_error)); Err(rocket) }, Ok(Err(pool_error)) => { - ::rocket::logger::log_err(false, + ::rocket::logger::log_error( &format!("Failed to initialize pool for '{}'", #name)); - ::rocket::logger::log_err(true, &format!("{:?}", pool_error)); + ::rocket::logger::log_error_(&format!("{:?}", pool_error)); Err(rocket) }, } diff --git a/contrib/lib/src/lib.rs b/contrib/lib/src/lib.rs @@ -41,8 +41,8 @@ //! This crate is expected to grow with time, bringing in outside crates to be //! officially supported by Rocket. -#[macro_use] extern crate log; -#[macro_use] extern crate rocket; +#[allow(unused_imports)] #[macro_use] extern crate log; +#[allow(unused_imports)] #[macro_use] extern crate rocket; #[cfg(feature = "serde")] extern crate serde; diff --git a/core/codegen/src/decorators/mod.rs b/core/codegen/src/decorators/mod.rs @@ -1,3 +0,0 @@ -mod route; - -pub use self::route::*; diff --git a/core/codegen/src/decorators/route.rs b/core/codegen/src/decorators/route.rs @@ -1,395 +0,0 @@ -use std::collections::HashSet; -use std::fmt::Display; - -use ::{ROUTE_STRUCT_PREFIX, ROUTE_FN_PREFIX, PARAM_PREFIX, URI_INFO_MACRO_PREFIX}; -use ::{ROUTE_ATTR, ROUTE_INFO_ATTR}; -use parser::{Param, RouteParams}; -use utils::*; - -use syntax::source_map::{Span, Spanned, dummy_spanned}; -use syntax::tokenstream::TokenTree; -use syntax::ast::{Arg, Ident, Item, Stmt, Expr, MetaItem, Path}; -use syntax::ext::base::{Annotatable, ExtCtxt}; -use syntax::ext::build::AstBuilder; -use syntax::parse::token; -use syntax::symbol::LocalInternedString; -use syntax::ptr::P; - -use rocket_http::{Method, MediaType}; - -fn method_to_path(ecx: &ExtCtxt, method: Method) -> Path { - quote_enum!(ecx, method => ::rocket_http::Method -> ::rocket::http::Method { - Options, Get, Post, Put, Delete, Head, Trace, Connect, Patch; - }) -} - -// FIXME: I think we also want the attributes here. -fn media_type_to_expr(ecx: &ExtCtxt, ct: Option<MediaType>) -> Option<P<Expr>> { - ct.map(|ct| { - let (top, sub) = (ct.top().as_str(), ct.sub().as_str()); - quote_expr!(ecx, ::rocket::http::MediaType { - source: ::rocket::http::Source::None, - top: ::rocket::http::Indexed::Concrete( - ::std::borrow::Cow::Borrowed($top) - ), - sub: ::rocket::http::Indexed::Concrete( - ::std::borrow::Cow::Borrowed($sub) - ), - params: ::rocket::http::MediaParams::Static(&[]) - }) - }) -} - -impl RouteParams { - fn missing_declared_err<T: Display>(&self, ecx: &ExtCtxt, arg: &Spanned<T>) { - let (fn_span, fn_name) = (self.annotated_fn.span(), self.annotated_fn.ident()); - ecx.struct_span_err(arg.span, &format!("unused dynamic parameter: `{}`", arg.node)) - .span_note(fn_span, &format!("expected argument named `{}` in `{}` handler", - arg.node, fn_name)) - .emit(); - } - - fn gen_form(&self, - ecx: &ExtCtxt, - param: Option<&Spanned<Ident>>, - form_string: P<Expr>) - -> Option<Stmt> { - let arg = param.and_then(|p| self.annotated_fn.find_input(&p.node.name)); - if param.is_none() { - return None; - } else if arg.is_none() { - self.missing_declared_err(ecx, param.unwrap()); - return None; - } - - let arg = arg.unwrap(); - let name = arg.ident().expect("form param identifier").prepend(PARAM_PREFIX); - let ty = strip_ty_lifetimes(arg.ty.clone()); - Some(quote_stmt!(ecx, - #[allow(non_snake_case)] - let $name: $ty = { - let mut items = ::rocket::request::FormItems::from($form_string); - let form = ::rocket::request::FromForm::from_form(items.by_ref(), true); - #[allow(unreachable_patterns)] - let obj = match form { - Ok(v) => v, - Err(_) => return ::rocket::Outcome::Forward(__data) - }; - - if !items.exhaust() { - println!(" => The query string {:?} is malformed.", $form_string); - return ::rocket::Outcome::Failure(::rocket::http::Status::BadRequest); - } - - obj - } - ).expect("form statement")) - } - - fn generate_data_statements(&self, ecx: &ExtCtxt) -> Option<(Stmt, Stmt)> { - let param = self.data_param.as_ref().map(|p| &p.value)?; - let arg = self.annotated_fn.find_input(&param.node.name); - if arg.is_none() { - self.missing_declared_err(ecx, param); - return None; - } - - let arg = arg.unwrap(); - let name = arg.ident().expect("form param identifier").prepend(PARAM_PREFIX); - let ty = strip_ty_lifetimes(arg.ty.clone()); - - let transform_stmt = quote_stmt!(ecx, - let __transform = <$ty as ::rocket::data::FromData>::transform(__req, __data); - ).expect("data statement"); - - let data_stmt = quote_stmt!(ecx, - #[allow(non_snake_case, unreachable_patterns)] - let $name: $ty = { - let __outcome = match __transform { - ::rocket::data::Transform::Owned(::rocket::Outcome::Success(__v)) => { - ::rocket::data::Transform::Owned(::rocket::Outcome::Success(__v)) - } - ::rocket::data::Transform::Borrowed(::rocket::Outcome::Success(ref v)) => { - let borrow = ::std::borrow::Borrow::borrow(v); - ::rocket::data::Transform::Borrowed(::rocket::Outcome::Success(borrow)) - } - ::rocket::data::Transform::Owned(inner) => { - ::rocket::data::Transform::Owned(inner) - } - ::rocket::data::Transform::Borrowed(inner) => { - ::rocket::data::Transform::Borrowed(inner.map(|_| unreachable!())) - } - }; - - match <$ty as ::rocket::data::FromData>::from_data(__req, __outcome) { - ::rocket::Outcome::Success(d) => d, - ::rocket::Outcome::Forward(d) => { - return ::rocket::Outcome::Forward(d); - } - ::rocket::Outcome::Failure((code, _)) => { - return ::rocket::Outcome::Failure(code); - } - } - }; - ).expect("data statement"); - - Some((transform_stmt, data_stmt)) - } - - fn generate_query_statement(&self, ecx: &ExtCtxt) -> Option<Stmt> { - let param = self.query_param.as_ref(); - let expr = quote_expr!(ecx, - match __req.uri().query() { - Some(query) => query, - None => return ::rocket::Outcome::Forward(__data) - } - ); - - self.gen_form(ecx, param, expr) - } - - // TODO: Add some kind of logging facility in Rocket to get be able to log - // an error/debug message if parsing a parameter fails. - fn generate_param_statements(&self, ecx: &ExtCtxt) -> Vec<Stmt> { - let mut fn_param_statements = vec![]; - let params = Param::parse_many(ecx, self.uri.node.path(), self.uri.span.trim(1)) - .unwrap_or_else(|mut diag| { diag.emit(); vec![] }); - - // Generate a statement for every declared paramter in the path. - let mut declared_set = HashSet::new(); - for (i, param) in params.iter().enumerate() { - declared_set.insert(param.ident().name); - let ty = match self.annotated_fn.find_input(&param.ident().name) { - Some(arg) => strip_ty_lifetimes(arg.ty.clone()), - None => { - self.missing_declared_err(ecx, param.inner()); - continue; - } - }; - - // Note: the `None` case shouldn't happen if a route is matched. - let ident = param.ident().prepend(PARAM_PREFIX); - let expr = match *param { - Param::Single(_) => quote_expr!(ecx, match __req.get_param_str($i) { - Some(s) => <$ty as ::rocket::request::FromParam>::from_param(s), - None => return ::rocket::Outcome::Forward(__data) - }), - Param::Many(_) => quote_expr!(ecx, match __req.get_raw_segments($i) { - Some(s) => <$ty as ::rocket::request::FromSegments>::from_segments(s), - None => return ::rocket::Outcome::Forward(__data) - }), - }; - - let original_ident = param.ident(); - fn_param_statements.push(quote_stmt!(ecx, - #[allow(non_snake_case, unreachable_patterns)] - let $ident: $ty = match $expr { - Ok(v) => v, - Err(e) => { - println!(" => Failed to parse '{}': {:?}", - stringify!($original_ident), e); - return ::rocket::Outcome::Forward(__data) - } - }; - ).expect("declared param parsing statement")); - } - - // A from_request parameter is one that isn't declared, data, or query. - let from_request = |a: &&Arg| { - if let Some(name) = a.name() { - !declared_set.contains(name) - && self.data_param.as_ref().map_or(true, |p| { - !a.named(&p.value().name) - }) && self.query_param.as_ref().map_or(true, |p| { - !a.named(&p.node.name) - }) - } else { - ecx.span_err(a.pat.span, "route argument names must be identifiers"); - false - } - }; - - // Generate the code for `from_request` parameters. - let all = &self.annotated_fn.decl().inputs; - for arg in all.iter().filter(from_request) { - let ident = arg.ident().unwrap().prepend(PARAM_PREFIX); - let ty = strip_ty_lifetimes(arg.ty.clone()); - fn_param_statements.push(quote_stmt!(ecx, - #[allow(non_snake_case, unreachable_patterns)] - let $ident: $ty = match - ::rocket::request::FromRequest::from_request(__req) { - ::rocket::Outcome::Success(v) => v, - ::rocket::Outcome::Forward(_) => - return ::rocket::Outcome::Forward(__data), - ::rocket::Outcome::Failure((code, _)) => { - return ::rocket::Outcome::Failure(code) - }, - }; - ).expect("undeclared param parsing statement")); - } - - fn_param_statements - } - - fn generate_fn_arguments(&self, ecx: &ExtCtxt) -> Vec<TokenTree> { - let args = self.annotated_fn.decl().inputs.iter() - .filter_map(|a| a.ident()) - .map(|ident| ident.prepend(PARAM_PREFIX)) - .collect::<Vec<Ident>>(); - - sep_by_tok(ecx, &args, token::Comma) - } - - fn generate_uri_macro(&self, ecx: &ExtCtxt) -> P<Item> { - let macro_args = parse_as_tokens(ecx, "$($token:tt)*"); - let macro_exp = parse_as_tokens(ecx, "$($token)*"); - let macro_name = self.annotated_fn.ident().prepend(URI_INFO_MACRO_PREFIX); - - // What we return if we find an inconsistency throughout. - let dummy = quote_item!(ecx, pub macro $macro_name($macro_args) { }).unwrap(); - - // Hacky check to see if the user's URI was valid. - if self.uri.span == dummy_spanned(()).span { - return dummy - } - - // Extract the route uri path and paramters from the uri. - let route_path = self.uri.node.to_string(); - let params = match Param::parse_many(ecx, &route_path, self.uri.span.trim(1)) { - Ok(params) => params, - Err(mut diag) => { - diag.cancel(); - return dummy; - } - }; - - // Generate the list of arguments for the URI. - let mut fn_uri_args = vec![]; - for param in &params { - if let Some(arg) = self.annotated_fn.find_input(&param.ident().name) { - let (pat, ty) = (&arg.pat, &arg.ty); - fn_uri_args.push(quote_tokens!(ecx, $pat: $ty)) - } else { - return dummy; - } - } - - // Generate the call to the internal URI macro with all the info. - let args = sep_by_tok(ecx, &fn_uri_args, token::Comma); - quote_item!(ecx, - pub macro $macro_name($macro_args) { - rocket_internal_uri!($route_path, ($args), $macro_exp) - } - ).expect("consistent uri macro item") - } - - fn explode(&self, ecx: &ExtCtxt) -> (LocalInternedString, String, Path, P<Expr>, P<Expr>) { - let name = self.annotated_fn.ident().name.as_str(); - let path = self.uri.node.to_string(); - let method = method_to_path(ecx, self.method.node); - let format = self.format.as_ref().map(|kv| kv.value().clone()); - let media_type = option_as_expr(ecx, &media_type_to_expr(ecx, format)); - let rank = option_as_expr(ecx, &self.rank); - - (name, path, method, media_type, rank) - } -} - -// FIXME: Compilation fails when parameters have the same name as the function! -fn generic_route_decorator(known_method: Option<Spanned<Method>>, - ecx: &mut ExtCtxt, - sp: Span, - meta_item: &MetaItem, - annotated: Annotatable - ) -> Vec<Annotatable> { - let mut output = Vec::new(); - - // Parse the route and generate the code to create the form and param vars. - let route = RouteParams::from(ecx, sp, known_method, meta_item, &annotated); - debug!("Route params: {:?}", route); - - let param_statements = route.generate_param_statements(ecx); - let query_statement = route.generate_query_statement(ecx); - let fn_arguments = route.generate_fn_arguments(ecx); - let uri_macro = route.generate_uri_macro(ecx); - let (transform_statement, data_statement) = route.generate_data_statements(ecx) - .map(|(a, b)| (Some(a), Some(b))) - .unwrap_or((None, None)); - - // Generate and emit the wrapping function with the Rocket handler signature. - let user_fn_name = route.annotated_fn.ident(); - let route_fn_name = user_fn_name.prepend(ROUTE_FN_PREFIX); - emit_item(&mut output, quote_item!(ecx, - // Allow the `unreachable_code` lint for those FromParam impls that have - // an `Error` associated type of !. - #[allow(unreachable_code)] - fn $route_fn_name<'_b>(__req: &'_b ::rocket::Request, __data: ::rocket::Data) - -> ::rocket::handler::Outcome<'_b> { - $param_statements - $query_statement - $transform_statement - $data_statement - let responder = $user_fn_name($fn_arguments); - ::rocket::handler::Outcome::from(__req, responder) - } - ).unwrap()); - - // Generate and emit the static route info that uses the just generated - // function as its handler. A proper Rocket route will be created from this. - let struct_name = user_fn_name.prepend(ROUTE_STRUCT_PREFIX); - let (name, path, method, media_type, rank) = route.explode(ecx); - let static_route_info_item = quote_item!(ecx, - /// Rocket code generated static route information structure. - #[allow(non_upper_case_globals)] - pub static $struct_name: ::rocket::StaticRouteInfo = - ::rocket::StaticRouteInfo { - name: $name, - method: $method, - path: $path, - handler: $route_fn_name, - format: $media_type, - rank: $rank, - }; - ).expect("static route info"); - - // Attach a `rocket_route_info` attribute to the route info and emit it. - let attr_name = Ident::from_str(ROUTE_INFO_ATTR); - let info_attr = quote_attr!(ecx, #[$attr_name]); - attach_and_emit(&mut output, info_attr, Annotatable::Item(static_route_info_item)); - - // Attach a `rocket_route` attribute to the user's function and emit it. - let attr_name = Ident::from_str(ROUTE_ATTR); - let route_attr = quote_attr!(ecx, #[$attr_name($struct_name)]); - attach_and_emit(&mut output, route_attr, annotated); - - // Emit the per-route URI macro. - emit_item(&mut output, uri_macro); - - output -} - -pub fn route_decorator( - ecx: &mut ExtCtxt, sp: Span, meta_item: &MetaItem, annotated: Annotatable -) -> Vec<Annotatable> { - generic_route_decorator(None, ecx, sp, meta_item, annotated) -} - -macro_rules! method_decorator { - ($name:ident, $method:ident) => ( - pub fn $name( - ecx: &mut ExtCtxt, sp: Span, meta_item: &MetaItem, annotated: Annotatable - ) -> Vec<Annotatable> { - let i_sp = meta_item.span.shorten_to(stringify!($method).len()); - let method = Some(span(Method::$method, i_sp)); - generic_route_decorator(method, ecx, sp, meta_item, annotated) - } - ) -} - -method_decorator!(get_decorator, Get); -method_decorator!(put_decorator, Put); -method_decorator!(post_decorator, Post); -method_decorator!(delete_decorator, Delete); -method_decorator!(head_decorator, Head); -method_decorator!(patch_decorator, Patch); -method_decorator!(options_decorator, Options); diff --git a/core/codegen/src/lib.rs b/core/codegen/src/lib.rs @@ -1,8 +1,4 @@ #![crate_type = "dylib"] -#![feature(quote, concat_idents, plugin_registrar, rustc_private)] -#![feature(custom_attribute)] -#![allow(unused_attributes)] -#![allow(deprecated)] // TODO: Version URLs. #![doc(html_root_url = "https://api.rocket.rs")] @@ -389,51 +385,3 @@ //! ``` //! ROCKET_CODEGEN_DEBUG=1 cargo build //! ``` - -extern crate syntax; -extern crate syntax_ext; -extern crate syntax_pos; -extern crate rustc_plugin; -extern crate rocket_http; -extern crate indexmap; - -#[macro_use] mod utils; -mod parser; -mod decorators; - -use rustc_plugin::Registry; -use syntax::ext::base::SyntaxExtension; -use syntax::symbol::Symbol; - -const DEBUG_ENV_VAR: &str = "ROCKET_CODEGEN_DEBUG"; - -const PARAM_PREFIX: &str = "rocket_param_"; -const ROUTE_STRUCT_PREFIX: &str = "static_rocket_route_info_for_"; -const ROUTE_FN_PREFIX: &str = "rocket_route_fn_"; -const URI_INFO_MACRO_PREFIX: &str = "rocket_uri_for_"; - -const ROUTE_ATTR: &str = "rocket_route"; -const ROUTE_INFO_ATTR: &str = "rocket_route_info"; - -macro_rules! register_decorators { - ($registry:expr, $($name:expr => $func:ident),+) => ( - $($registry.register_syntax_extension(Symbol::intern($name), - SyntaxExtension::MultiModifier(Box::new(decorators::$func))); - )+ - ) -} - -/// Compiler hook for Rust to register plugins. -#[plugin_registrar] -pub fn plugin_registrar(reg: &mut Registry) { - register_decorators!(reg, - "route" => route_decorator, - "get" => get_decorator, - "put" => put_decorator, - "post" => post_decorator, - "delete" => delete_decorator, - "head" => head_decorator, - "patch" => patch_decorator, - "options" => options_decorator - ); -} diff --git a/core/codegen/src/parser/function.rs b/core/codegen/src/parser/function.rs @@ -1,36 +0,0 @@ -use syntax::ast::*; -use syntax::source_map::{Span, Spanned}; -use syntax::ext::base::Annotatable; -use utils::{ArgExt, span}; - -#[derive(Debug)] -pub struct Function(Spanned<(Ident, FnDecl)>); - -impl Function { - pub fn from(annotated: &Annotatable) -> Result<Function, Span> { - if let Annotatable::Item(ref item) = *annotated { - if let ItemKind::Fn(ref decl, ..) = item.node { - let inner = (item.ident, decl.clone().into_inner()); - return Ok(Function(span(inner, item.span))); - } - } - - Err(annotated.span()) - } - - pub fn ident(&self) -> &Ident { - &self.0.node.0 - } - - pub fn decl(&self) -> &FnDecl { - &self.0.node.1 - } - - pub fn span(&self) -> Span { - self.0.span - } - - pub fn find_input<'a>(&'a self, name: &Name) -> Option<&'a Arg> { - self.decl().inputs.iter().find(|arg| arg.named(name)) - } -} diff --git a/core/codegen/src/parser/keyvalue.rs b/core/codegen/src/parser/keyvalue.rs @@ -1,60 +0,0 @@ -use syntax::source_map::{Spanned, Span, dummy_spanned, DUMMY_SP}; -use syntax::ext::base::ExtCtxt; -use syntax::tokenstream::TokenTree; -use syntax::ext::quote::rt::ToTokens; -use utils::span; - -/// A spanned key-value pair in an attribute. -#[derive(Debug, Clone)] -pub struct KVSpanned<V> { - /// Span for the full key/value pair. - pub span: Span, - /// The spanned key. - pub key: Spanned<String>, - /// The spanned value. - pub value: Spanned<V> -} - -impl<V> KVSpanned<V> { - /// Maps a reference of the inner value of this span using `f`. The key, - /// value, and full spans will remain the same in the new KVSpan. - pub fn map_ref<U, F: FnOnce(&V) -> U>(&self, f: F) -> KVSpanned<U> { - KVSpanned { - span: self.span, - key: self.key.clone(), - value: span(f(&self.value.node), self.value.span) - } - } - - /// Returns the unspanned key. Purely for convenience. - pub fn key(&self) -> &String { - &self.key.node - } - - /// Returns the unspanned value. Purely for convenience. - pub fn value(&self) -> &V { - &self.value.node - } -} - -impl<T: Default> Default for KVSpanned<T> { - /// Returns a dummy KVSpan with an empty key for the default value of T. - fn default() -> KVSpanned<T> { - dummy_kvspanned("", T::default()) - } -} - -impl<T: ToTokens> ToTokens for KVSpanned<T> { - fn to_tokens(&self, cx: &ExtCtxt) -> Vec<TokenTree> { - self.value().to_tokens(cx) - } -} - -/// Creates a KVSpanned value with dummy (meaningless) spans. -pub fn dummy_kvspanned<T, S: ToString>(key: S, value: T) -> KVSpanned<T> { - KVSpanned { - span: DUMMY_SP, - key: dummy_spanned(key.to_string()), - value: dummy_spanned(value), - } -} diff --git a/core/codegen/src/parser/mod.rs b/core/codegen/src/parser/mod.rs @@ -1,10 +0,0 @@ -mod keyvalue; -mod route; -mod param; -mod function; -mod uri; - -pub use self::keyvalue::KVSpanned; -pub use self::route::RouteParams; -pub use self::param::Param; -pub use self::function::Function; diff --git a/core/codegen/src/parser/param.rs b/core/codegen/src/parser/param.rs @@ -1,66 +0,0 @@ -use syntax::ast::Ident; -use syntax::source_map::{Span, Spanned}; -use syntax::ext::base::ExtCtxt; -use utils::SpanExt; -use syntax::parse::PResult; - -#[derive(Debug)] -pub enum Param { - Single(Spanned<Ident>), - Many(Spanned<Ident>), -} - -impl Param { - pub fn inner(&self) -> &Spanned<Ident> { - match *self { - Param::Single(ref ident) | Param::Many(ref ident) => ident, - } - } - - pub fn ident(&self) -> &Ident { - match *self { - Param::Single(ref ident) | Param::Many(ref ident) => &ident.node, - } - } - - pub fn parse_many<'a>( - ecx: &ExtCtxt<'a>, - mut string: &str, - mut span: Span - ) -> PResult<'a, Vec<Param>> { - let err = |sp, msg| { Err(ecx.struct_span_err(sp, msg)) }; - - let mut params = vec![]; - loop { - // Find the start and end indexes for the next parameter, if any. - let (start, end) = match string.find('<') { - Some(i) => match string.find('>') { - Some(j) if j > i => (i, j), - Some(_) => return err(span, "malformed parameters"), - None => return err(span, "malformed parameters") - }, - _ => return Ok(params) - }; - - // Calculate the parameter's ident and span. - let param_span = span.trim_left(start).shorten_to(end + 1); - let full_param = &string[(start + 1)..end]; - let (is_many, param) = if full_param.ends_with("..") { - (true, &full_param[..(full_param.len() - 2)]) - } else { - (false, full_param) - }; - - // Advance the string and span. - string = &string[(end + 1)..]; - span = span.trim_left(end + 1); - - let spanned_ident = param_span.wrap(Ident::from_str(param)); - if is_many { - params.push(Param::Many(spanned_ident)) - } else { - params.push(Param::Single(spanned_ident)) - } - } - } -} diff --git a/core/codegen/src/parser/route.rs b/core/codegen/src/parser/route.rs @@ -1,281 +0,0 @@ -use std::str::FromStr; -use std::collections::HashSet; - -use syntax::ast::*; -use syntax::ext::base::{ExtCtxt, Annotatable}; -use syntax::source_map::{Span, Spanned, dummy_spanned}; - -use utils::{MetaItemExt, SpanExt, span, is_valid_ident}; -use super::Function; -use super::keyvalue::KVSpanned; -use super::uri::validate_uri; -use rocket_http::{Method, MediaType}; -use rocket_http::uri::Origin; - -/// This structure represents the parsed `route` attribute. -/// -/// It contains all of the information supplied by the user and the span where -/// the user supplied the information. This structure can only be obtained by -/// calling the `RouteParams::from` function and passing in the entire decorator -/// environment. -#[derive(Debug)] -pub struct RouteParams { - pub annotated_fn: Function, - pub method: Spanned<Method>, - pub uri: Spanned<Origin<'static>>, - pub data_param: Option<KVSpanned<Ident>>, - pub query_param: Option<Spanned<Ident>>, - pub format: Option<KVSpanned<MediaType>>, - pub rank: Option<KVSpanned<isize>>, -} - -impl RouteParams { - /// Parses the route attribute from the given decorator context. If the - /// parse is not successful, this function exits early with the appropriate - /// error message to the user. - pub fn from( - ecx: &mut ExtCtxt, - sp: Span, - known_method: Option<Spanned<Method>>, - meta_item: &MetaItem, - annotated: &Annotatable - ) -> RouteParams { - let function = Function::from(annotated).unwrap_or_else(|item_sp| { - ecx.span_err(sp, "this attribute can only be used on functions..."); - ecx.span_fatal(item_sp, "...but was applied to the item below."); - }); - - let meta_items = meta_item.meta_item_list().unwrap_or_else(|| { - ecx.struct_span_err(sp, "incorrect use of attribute") - .help("attributes in Rocket must have the form: #[name(...)]") - .emit(); - ecx.span_fatal(sp, "malformed attribute"); - }); - - if meta_items.is_empty() { - ecx.span_fatal(sp, "attribute requires at least 1 parameter"); - } - - // Figure out the method. If it is known (i.e, because we're parsing a - // helper attribute), use that method directly. Otherwise, try to parse - // it from the list of meta items. - let (method, attr_params) = match known_method { - Some(method) => (method, meta_items), - None => (parse_method(ecx, &meta_items[0]), &meta_items[1..]) - }; - - if attr_params.is_empty() { - ecx.struct_span_err(sp, "attribute requires at least a path") - .help(r#"example: #[get("/my/path")] or #[get(path = "/hi")]"#) - .emit(); - ecx.span_fatal(sp, "malformed attribute"); - } - - // Parse the required path and optional query parameters. - let (uri, query) = parse_path(ecx, &attr_params[0]); - - // Parse all of the optional parameters. - let mut seen_keys = HashSet::new(); - let (mut rank, mut data, mut format) = Default::default(); - for param in &attr_params[1..] { - let kv_opt = kv_from_nested(param); - if kv_opt.is_none() { - ecx.span_err(param.span(), "expected key = value"); - continue; - } - - let kv = kv_opt.unwrap(); - match kv.key().as_str() { - "rank" => rank = parse_opt(ecx, &kv, parse_rank), - "data" => data = parse_opt(ecx, &kv, parse_data), - "format" => format = parse_opt(ecx, &kv, parse_format), - _ => { - let msg = format!("'{}' is not a known parameter", kv.key()); - ecx.span_err(kv.span, &msg); - continue; - } - } - - if seen_keys.contains(kv.key()) { - let msg = format!("{} was already defined", kv.key()); - ecx.struct_span_warn(param.span, &msg) - .note("the last declared value will be used") - .emit(); - } else { - seen_keys.insert(kv.key().clone()); - } - } - - // Sanity check: `data` should only be used with payload methods. - if let Some(ref data_param) = data { - if !method.node.supports_payload() { - ecx.struct_span_warn(data_param.span, "`data` route parameter \ - used with non-payload-supporting method") - .note(&format!("'{}' does not typically support payloads", method.node)) - .note("the 'format' attribute parameter will match against \ - the 'Accept' header") - .emit(); - } - } - - RouteParams { - method, uri, format, rank, - data_param: data, - query_param: query, - annotated_fn: function, - } - } -} - -fn is_valid_method(method: Method) -> bool { - use rocket_http::Method::*; - match method { - Get | Put | Post | Delete | Head | Patch | Options => true, - Trace | Connect => false - } -} - -pub fn kv_from_nested(item: &NestedMetaItem) -> Option<KVSpanned<LitKind>> { - item.name_value().map(|(name, value)| { - let k_span = item.span().shorten_to(name.as_str().len()); - KVSpanned { - key: span(name.to_string(), k_span), - value: value.clone(), - span: item.span(), - } - }) -} - -pub fn param_to_ident(ecx: &ExtCtxt, s: Spanned<&str>) -> Option<Spanned<Ident>> { - let string = s.node; - if string.starts_with('<') && string.ends_with('>') { - let param = &string[1..(string.len() - 1)]; - if is_valid_ident(param) { - return Some(span(Ident::from_str(param), s.span.trim(1))); - } - - ecx.span_err(s.span, "parameter name must be alphanumeric"); - } else { - ecx.span_err(s.span, "parameters must start with '<' and end with '>'"); - } - - None -} - -fn parse_method(ecx: &ExtCtxt, meta_item: &NestedMetaItem) -> Spanned<Method> { - let default_method = dummy_spanned(Method::Get); - let valid_methods = "valid methods are: `GET`, `PUT`, `POST`, `DELETE`, \ - `HEAD`, `PATCH`, `OPTIONS`"; - - if let Some(word) = meta_item.word() { - if let Ok(method) = Method::from_str(&word.name().as_str()) { - if is_valid_method(method) { - return span(method, word.span()); - } - } - - let msg = format!("'{}' is not a valid method", word.ident); - ecx.struct_span_err(word.span, &msg).help(valid_methods).emit(); - return default_method; - } - - // Fallthrough. Emit a generic error message and return default method. - let msg = "expected a valid HTTP method identifier"; - ecx.struct_span_err(meta_item.span, msg).help(valid_methods).emit(); - dummy_spanned(Method::Get) -} - -fn parse_path( - ecx: &ExtCtxt, - meta_item: &NestedMetaItem -) -> (Spanned<Origin<'static>>, Option<Spanned<Ident>>) { - let sp = meta_item.span(); - if let Some((name, lit)) = meta_item.name_value() { - if name != "path" { - ecx.span_err(sp, "the first key, if any, must be 'path'"); - } else if let LitKind::Str(ref s, _) = lit.node { - return validate_uri(ecx, &s.as_str(), lit.span); - } else { - ecx.span_err(lit.span, "`path` value must be a string") - } - } else if let Some(s) = meta_item.str_lit() { - return validate_uri(ecx, &s.as_str(), sp); - } else { - ecx.struct_span_err(sp, r#"expected `path = string` or a path string"#) - .help(r#"you can specify the path directly as a string, \ - e.g: "/hello/world", or as a key-value pair, \ - e.g: path = "/hello/world" "#) - .emit(); - } - - (dummy_spanned(Origin::dummy()), None) -} - -fn parse_opt<O, T, F>(ecx: &ExtCtxt, kv: &KVSpanned<T>, f: F) -> Option<KVSpanned<O>> - where F: Fn(&ExtCtxt, &KVSpanned<T>) -> O -{ - Some(kv.map_ref(|_| f(ecx, kv))) -} - -fn parse_data(ecx: &ExtCtxt, kv: &KVSpanned<LitKind>) -> Ident { - let mut ident = Ident::from_str("unknown"); - if let LitKind::Str(ref s, _) = *kv.value() { - ident = Ident::from_str(&s.as_str()); - if let Some(id) = param_to_ident(ecx, span(&s.as_str(), kv.value.span)) { - return id.node; - } - } - - let err_string = r#"`data` value must be a parameter, e.g: "<name>"`"#; - ecx.struct_span_fatal(kv.span, err_string) - .help(r#"data, if specified, must be a key-value pair where - the key is `data` and the value is a string with a single - parameter inside '<' '>'. e.g: data = "<user_form>""#) - .emit(); - - ident -} - -fn parse_rank(ecx: &ExtCtxt, kv: &KVSpanned<LitKind>) -> isize { - if let LitKind::Int(n, _) = *kv.value() { - let max = isize::max_value(); - if n <= max as u128 { - return n as isize; - } else { - let msg = format!("rank must be less than or equal to {}", max); - ecx.span_err(kv.value.span, msg.as_str()); - } - } else { - ecx.struct_span_err(kv.span, r#"`rank` value must be an int"#) - .help(r#"the rank, if specified, must be a key-value pair where - the key is `rank` and the value is an integer. - e.g: rank = 1, or e.g: rank = 10"#) - .emit(); - } - - -1 -} - -fn parse_format(ecx: &ExtCtxt, kv: &KVSpanned<LitKind>) -> MediaType { - if let LitKind::Str(ref s, _) = *kv.value() { - if let Some(ct) = MediaType::parse_flexible(&s.as_str()) { - if !ct.is_known() { - let msg = format!("'{}' is not a known media type", s); - ecx.span_warn(kv.value.span, &msg); - } - - return ct; - } else { - ecx.span_err(kv.value.span, "malformed media type"); - } - } - - ecx.struct_span_err(kv.span, r#"`format` must be a "media/type""#) - .help(r#"format, if specified, must be a key-value pair where - the key is `format` and the value is a string representing the - media type accepted. e.g: format = "application/json". - shorthand is also accepted: format = "json"#) - .emit(); - - MediaType::Any -} diff --git a/core/codegen/src/parser/uri.rs b/core/codegen/src/parser/uri.rs @@ -1,123 +0,0 @@ -use syntax::ast::*; -use syntax::source_map::{Span, Spanned, dummy_spanned}; -use syntax::ext::base::ExtCtxt; - -use rocket_http::ext::IntoOwned; -use rocket_http::uri::{Uri, Origin}; -use super::route::param_to_ident; -use utils::{span, SpanExt, is_valid_ident}; - -// We somewhat arbitrarily enforce absolute paths. This is mostly because we -// want the initial "/" to represent the mount point. Empty segments are -// stripped out at runtime. So, to avoid any confusion, we issue an error at -// compile-time for empty segments. At the moment, this disallows trailing -// slashes as well, since then the last segment is empty. -fn valid_path(ecx: &ExtCtxt, uri: &Origin, sp: Span) -> bool { - if !uri.is_normalized() { - let normalized = uri.to_normalized(); - ecx.struct_span_err(sp, "paths cannot contain empty segments") - .note(&format!("expected '{}', found '{}'", normalized, uri)) - .emit(); - } - - uri.is_normalized() -} - -fn valid_segments(ecx: &ExtCtxt, uri: &Origin, sp: Span) -> bool { - let mut validated = true; - let mut segments_span = None; - for segment in uri.segments() { - // We add one to the index to account for the '/'. - let index = segment.as_ptr() as usize - uri.path().as_ptr() as usize; - let span = sp.trim_left(index + 1).shorten_to(segment.len()); - - // If we're iterating after a '..' param, that's a hard error. - if let Some(span) = segments_span { - let rem_sp = sp.trim_left(index).trim_right(1); - ecx.struct_span_err(rem_sp, "text after a trailing '..' param") - .help("a segments param must be the final text in a path") - .span_note(span, "trailing param is here") - .emit(); - return false; - } - - // Check if this is a dynamic param. If so, check it's well-formedness. - if segment.starts_with('<') && segment.ends_with('>') { - let mut param = &segment[1..(segment.len() - 1)]; - if segment.ends_with("..>") { - segments_span = Some(span); - param = &param[..(param.len() - 2)]; - } - - if param.is_empty() { - ecx.span_err(span, "parameters cannot be empty"); - } else if !is_valid_ident(param) { - ecx.struct_span_err(span, "parameter names must be valid identifiers") - .note(&format!("{:?} is not a valid identifier", param)) - .emit(); - } else if param == "_" { - ecx.struct_span_err(span, "parameters must be named") - .help("use a name such as `_guard` or `_param`") - .emit(); - } else { - continue - } - - validated = false; - } else if segment.starts_with('<') { - if segment[1..].contains('<') || segment.contains('>') { - ecx.struct_span_err(span, "malformed parameter") - .help("parameters must be of the form '<param>'") - .emit(); - } else { - ecx.struct_span_err(span, "parameter is missing a closing bracket") - .help(&format!("perhaps you meant '{}>'?", segment)) - .emit(); - } - - validated = false; - } else if Uri::percent_encode(segment) != segment { - if segment.contains('<') || segment.contains('>') { - ecx.struct_span_err(span, "malformed parameter") - .help("parameters must be of the form '<param>'") - .emit(); - } else { - ecx.span_err(span, "segment contains invalid characters"); - } - - validated = false; - } - } - - validated -} - -pub fn validate_uri( - ecx: &ExtCtxt, - string: &str, - sp: Span, -) -> (Spanned<Origin<'static>>, Option<Spanned<Ident>>) { - let query_param = string.find('?') - .map(|i| span(&string[(i + 1)..], sp.trim_left(i + 1))) - .and_then(|spanned_q_param| param_to_ident(ecx, spanned_q_param)); - - let dummy = (dummy_spanned(Origin::dummy()), query_param); - match Origin::parse_route(string) { - Ok(uri) => { - let uri = uri.into_owned(); - if valid_segments(ecx, &uri, sp) && valid_path(ecx, &uri, sp) { - return (span(uri, sp), query_param) - } - - dummy - } - Err(e) => { - ecx.struct_span_err(sp, &format!("invalid path URI: {}", e)) - .note("expected path URI in origin form") - .help("example: /path/<route>") - .emit(); - - dummy - } - } -} diff --git a/core/codegen/src/utils/arg_ext.rs b/core/codegen/src/utils/arg_ext.rs @@ -1,22 +0,0 @@ -use syntax::ast::{Arg, PatKind, Ident, Name}; - -pub trait ArgExt { - fn ident(&self) -> Option<&Ident>; - - fn name(&self) -> Option<&Name> { - self.ident().map(|ident| &ident.name) - } - - fn named(&self, name: &Name) -> bool { - self.name().map_or(false, |a| a == name) - } -} - -impl ArgExt for Arg { - fn ident(&self) -> Option<&Ident> { - match self.pat.node { - PatKind::Ident(_, ref ident, _) => Some(&ident), - _ => None, - } - } -} diff --git a/core/codegen/src/utils/generics_ext.rs b/core/codegen/src/utils/generics_ext.rs @@ -1,15 +0,0 @@ -use syntax::ast::{GenericParam, GenericParamKind}; - -pub trait GenericParamExt { - /// Returns `true` if `self` is of kind `lifetime`. - fn is_lifetime(&self) -> bool; -} - -impl GenericParamExt for GenericParam { - fn is_lifetime(&self) -> bool { - match self.kind { - GenericParamKind::Lifetime => true, - _ => false - } - } -} diff --git a/core/codegen/src/utils/meta_item_ext.rs b/core/codegen/src/utils/meta_item_ext.rs @@ -1,31 +0,0 @@ -use syntax::ast::{LitKind, NestedMetaItem, MetaItemKind, Lit}; -use syntax::symbol::Symbol; - -pub trait MetaItemExt { - fn name_value(&self) -> Option<(Symbol, &Lit)>; - fn str_lit(&self) -> Option<&Symbol>; - fn int_lit(&self) -> Option<u128>; -} - -impl MetaItemExt for NestedMetaItem { - fn name_value(&self) -> Option<(Symbol, &Lit)> { - self.meta_item().and_then(|mi| match mi.node { - MetaItemKind::NameValue(ref l) => Some((mi.name(), l)), - _ => None, - }) - } - - fn str_lit(&self) -> Option<&Symbol> { - self.literal().and_then(|lit| match lit.node { - LitKind::Str(ref s, _) => Some(s), - _ => None, - }) - } - - fn int_lit(&self) -> Option<u128> { - self.literal().and_then(|lit| match lit.node { - LitKind::Int(n, _) => Some(n), - _ => None, - }) - } -} diff --git a/core/codegen/src/utils/mod.rs b/core/codegen/src/utils/mod.rs @@ -1,161 +0,0 @@ -mod meta_item_ext; -mod arg_ext; -mod parser_ext; -mod ident_ext; -mod span_ext; -mod expr_ext; -mod generics_ext; - -pub use self::arg_ext::ArgExt; -pub use self::meta_item_ext::MetaItemExt; -pub use self::parser_ext::ParserExt; -pub use self::ident_ext::IdentExt; -pub use self::span_ext::SpanExt; -pub use self::expr_ext::ExprExt; -pub use self::generics_ext::GenericParamExt; - -use std::convert::AsRef; - -use syntax; -use syntax::parse::token::Token; -use syntax::tokenstream::TokenTree; -use syntax::ast::{Item, Expr, Attribute, Ty}; -use syntax::ext::base::{Annotatable, ExtCtxt}; -use syntax::source_map::{Span, Spanned, DUMMY_SP}; -use syntax::ext::quote::rt::ToTokens; -use syntax::print::pprust::item_to_string; -use syntax::symbol::{Ident, Symbol}; -use syntax::fold::Folder; -use syntax::attr::HasAttrs; -use syntax::ptr::P; - -macro_rules! debug { - ($($t:tt)*) => ( - // Enable debug logs if the DEBUG_ENV_VAR is set. - if ::std::env::var(::DEBUG_ENV_VAR).is_ok() { - eprintln!("--> {}:{} ({})", file!(), line!(), module_path!()); - eprintln!($($t)*); - eprintln!(); - } - ) -} - -pub fn span<T>(t: T, span: Span) -> Spanned<T> { - Spanned { node: t, span } -} - -pub fn sep_by_tok<T>(ecx: &ExtCtxt, things: &[T], token: Token) -> Vec<TokenTree> - where T: ToTokens -{ - let mut output: Vec<TokenTree> = vec![]; - for (i, thing) in things.iter().enumerate() { - output.extend(thing.to_tokens(ecx)); - if i < things.len() - 1 { - output.push(TokenTree::Token(DUMMY_SP, token.clone())); - } - } - - output -} - -pub fn option_as_expr<T: ToTokens>(ecx: &ExtCtxt, opt: &Option<T>) -> P<Expr> { - match *opt { - Some(ref item) => quote_expr!(ecx, Some($item)), - None => quote_expr!(ecx, None), - } -} - -pub fn emit_item(items: &mut Vec<Annotatable>, item: P<Item>) { - debug!("Emitting item:\n{}", item_to_string(&item)); - items.push(Annotatable::Item(item)); -} - -pub fn attach_and_emit(out: &mut Vec<Annotatable>, attr: Attribute, to: Annotatable) { - syntax::attr::mark_used(&attr); - syntax::attr::mark_known(&attr); - - // Attach the attribute to the user's function and emit it. - if let Annotatable::Item(user_item) = to { - let item = user_item.map_attrs(|mut attrs| { - attrs.push(attr); - attrs - }); - - emit_item(out, item); - } -} - -pub fn parse_as_tokens(ecx: &ExtCtxt, s: &str) -> Vec<TokenTree> { - use syntax_pos::FileName; - use syntax::parse::parse_stream_from_source_str as parse_stream; - - parse_stream(FileName::ProcMacroSourceCode, s.into(), ecx.parse_sess, None) - .into_trees() - .collect() -} - -pub struct TyLifetimeRemover; - -impl Folder for TyLifetimeRemover { - fn fold_ident(&mut self, ident: Ident) -> Ident { - if ident.as_str().starts_with('\'') { - Ident::new(Symbol::intern("'_"), ident.span) - } else { - ident - } - } -} - -pub fn strip_ty_lifetimes(ty: P<Ty>) -> P<Ty> { - TyLifetimeRemover.fold_ty(ty) -} - -// Lifted from Rust's lexer, except this takes a `char`, not an `Option<char>`. -fn ident_start(c: char) -> bool { - (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || - (c > '\x7f' && c.is_xid_start()) -} - -// Lifted from Rust's lexer, except this takes a `char`, not an `Option<char>`. -fn ident_continue(c: char) -> bool { - (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || - c == '_' || (c > '\x7f' && c.is_xid_continue()) -} - -pub fn is_valid_ident<S: AsRef<str>>(s: S) -> bool { - let string = s.as_ref(); - if string.is_empty() { - return false; - } - - for (i, c) in string.chars().enumerate() { - if i == 0 { - if !ident_start(c) { - return false; - } - } else if !ident_continue(c) { - return false; - } - } - - true -} - -macro_rules! quote_enum { - ($ecx:expr, $var:expr => $(::$from_root:ident)+ -> $(::$to_root:ident)+ - { $($variant:ident),+ ; $($extra:pat => $result:expr),* }) => ({ - use syntax::source_map::DUMMY_SP; - use syntax::ast::Ident; - use $(::$from_root)+::*; - let root_idents = vec![$(Ident::from_str(stringify!($to_root))),+]; - match $var { - $($variant => { - let variant = Ident::from_str(stringify!($variant)); - let mut idents = root_idents.clone(); - idents.push(variant); - $ecx.path_global(DUMMY_SP, idents) - })+ - $($extra => $result),* - } - }) -} diff --git a/core/codegen/tests/complete-decorator.rs b/core/codegen/tests/complete-decorator.rs @@ -1,28 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] - -#[macro_use] extern crate rocket; - -use rocket::http::{Cookies, RawStr}; -use rocket::request::Form; - -#[derive(FromForm)] -struct User<'a> { - name: &'a RawStr, - nickname: String, -} - -#[post("/<_name>?<_query>", format = "application/json", data = "<user>", rank = 2)] -fn get( - _name: &RawStr, - _query: User, - user: Form<User>, - _cookies: Cookies -) -> String { - format!("{}:{}", user.name, user.nickname) -} - -#[test] -fn main() { - let _ = routes![get]; -} diff --git a/core/codegen/tests/custom-content-type.rs b/core/codegen/tests/custom-content-type.rs @@ -1,10 +0,0 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - -extern crate rocket; - -#[post("/", format = "application/x-custom")] -fn get() -> &'static str { "hi" } - -#[test] -fn main() { } diff --git a/core/codegen/tests/dynamic-paths.rs b/core/codegen/tests/dynamic-paths.rs @@ -1,16 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] -#![allow(dead_code, unused_variables)] - -#[macro_use] extern crate rocket; - -#[get("/test/<one>/<two>/<three>")] -fn get(one: String, two: usize, three: isize) -> &'static str { "hi" } - -#[get("/test/<_one>/<_two>/<__three>")] -fn ignored(_one: String, _two: usize, __three: isize) -> &'static str { "hi" } - -#[test] -fn main() { - let _ = routes![get, ignored]; -} diff --git a/core/codegen/tests/empty-fn.rs b/core/codegen/tests/empty-fn.rs @@ -1,13 +0,0 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - -extern crate rocket; - -#[get("/")] -fn get() -> &'static str { "hi" } - -#[get("/")] -fn get_empty() { } - -#[test] -fn main() { } diff --git a/core/codegen/tests/instanced-mounting.rs b/core/codegen/tests/instanced-mounting.rs @@ -1,40 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] -#![allow(dead_code, unused_variables)] - -#[macro_use] extern crate rocket; - -#[get("/one")] -fn one() { } - -#[get("/two")] -fn two() { } - -#[get("/three")] -fn three() { } - -#[get("/four")] -fn four() { } - -#[test] -fn main() { - let instance = rocket::ignite() - .mount("/", routes![one]); - - let other = instance.mount("/", routes![two]); - other.mount("/", routes![three]) - .mount("/", routes![four]); - - rocket::ignite() - .mount("/", routes![one]) - .mount("/", routes![two]) - .mount("/", routes![three]) - .mount("/", routes![four]); - - let a = rocket::ignite() - .mount("/", routes![one]) - .mount("/", routes![two]); - - let b = a.mount("/", routes![three]) - .mount("/", routes![four]); -} diff --git a/core/codegen/tests/issue-1-colliding-names.rs b/core/codegen/tests/issue-1-colliding-names.rs @@ -1,14 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] - -#[macro_use] extern crate rocket; - -#[get("/<todo>")] -fn todo(todo: String) -> String { - todo -} - -#[test] -fn main() { - let _ = routes![todo]; -} diff --git a/core/codegen/tests/methods.rs b/core/codegen/tests/methods.rs @@ -1,28 +0,0 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - -extern crate rocket; - -#[get("/")] fn get() { } -#[route(GET, "/")] fn get_r() { } - -#[put("/")] fn put() { } -#[route(PUT, "/")] fn put_r() { } - -#[post("/")] fn post() { } -#[route(POST, "/")] fn post_r() { } - -#[delete("/")] fn delete() { } -#[route(DELETE, "/")] fn delete_r() { } - -#[head("/")] fn head() { } -#[route(HEAD, "/")] fn head_r() { } - -#[patch("/")] fn patch() { } -#[route(PATCH, "/")] fn patch_r() { } - -#[options("/")] fn options() { } -#[route(OPTIONS, "/")] fn options_r() { } - -#[test] -fn main() { } diff --git a/core/codegen/tests/rank_decorator.rs b/core/codegen/tests/rank_decorator.rs @@ -1,16 +0,0 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - -extern crate rocket; - -#[get("/", rank = 1)] -fn get1() -> &'static str { "hi" } - -#[get("/", rank = 2)] -fn get2() -> &'static str { "hi" } - -#[get("/", rank = 3)] -fn get3() -> &'static str { "hi" } - -#[test] -fn main() { } diff --git a/core/codegen/tests/refactored_rocket_no_lint_errors.rs b/core/codegen/tests/refactored_rocket_no_lint_errors.rs @@ -1,28 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] -#![allow(dead_code, unused_variables)] - -#[macro_use] extern crate rocket; - -use rocket::{Rocket, State}; - -#[get("/")] -fn index(state: State<u32>) { } - -fn rocket() -> Rocket { - rocket::ignite() - .mount("/", routes![index]) - .manage(100u32) -} - -#[test] -fn main() { - if false { - rocket().launch(); - } - - let instance = rocket(); - if false { - instance.launch(); - } -} diff --git a/core/codegen/tests/segments.rs b/core/codegen/tests/segments.rs @@ -1,20 +0,0 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - -extern crate rocket; - -use std::path::PathBuf; -use rocket::http::uri::SegmentError; - -#[post("/<a>/<b..>")] -fn get(a: String, b: PathBuf) -> String { - format!("{}/{}", a, b.to_string_lossy()) -} - -#[post("/<a>/<b..>")] -fn get2(a: String, b: Result<PathBuf, SegmentError>) -> String { - format!("{}/{}", a, b.unwrap().to_string_lossy()) -} - -#[test] -fn main() { } diff --git a/core/codegen/tests/type-alias-lints.rs b/core/codegen/tests/type-alias-lints.rs @@ -1,25 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] -#![allow(dead_code, unused_variables)] - -#[macro_use] extern crate rocket; - -use rocket::State; - -type MyState<'r> = State<'r, usize>; - -type MyVecState<'r, T> = State<'r, Vec<T>>; - -#[get("/")] -fn index(state: MyState) { } - -#[get("/a")] -fn another(state: MyVecState<usize>) { } - -#[test] -fn main() { - rocket::ignite() - .manage(10usize) - .manage(vec![1usize, 2usize, 3usize]) - .mount("/", routes![index, another]); -} diff --git a/core/codegen/tests/typed-uris.rs b/core/codegen/tests/typed-uris.rs @@ -1,5 +1,5 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(plugin, proc_macro_non_items, proc_macro_gen, decl_macro)] + #![allow(dead_code, unused_variables)] #[macro_use] extern crate rocket; @@ -67,10 +67,10 @@ fn no_uri_display_okay(id: i32, form: Form<Second>) -> &'static str { "Typed URI testing." } -#[post("/<name>?<query>", data = "<user>", rank = 2)] +#[post("/<name>?<query..>", data = "<user>", rank = 2)] fn complex<'r>( name: &RawStr, - query: User<'r>, + query: Form<User<'r>>, user: Form<User<'r>>, cookies: Cookies ) -> &'static str { "" } diff --git a/core/codegen_next/Cargo.toml b/core/codegen_next/Cargo.toml @@ -20,11 +20,14 @@ proc-macro = true indexmap = "1.0" quote = "0.6.1" rocket_http = { version = "0.4.0-dev", path = "../http/" } +indexmap = "1" [dependencies.derive_utils] -git = "https://github.com/SergioBenitez/derive-utils" -rev = "87ad56ba" +path = "/Users/sbenitez/Sync/Data/Projects/Snippets/derive-utils/lib" +# git = "https://github.com/SergioBenitez/derive-utils" +# rev = "87ad56ba" [dev-dependencies] rocket = { version = "0.4.0-dev", path = "../lib" } +rocket_codegen = { version = "0.4.0-dev", path = "../codegen" } compiletest_rs = "0.3.14" diff --git a/core/codegen_next/src/attribute/catch.rs b/core/codegen_next/src/attribute/catch.rs @@ -1,14 +1,11 @@ -use proc_macro::TokenStream; +use proc_macro::{TokenStream, Span}; use derive_utils::{syn, Spanned, Result, FromMeta}; use proc_macro2::TokenStream as TokenStream2; -use proc_macro::Span; use http_codegen::Status; use syn_ext::{syn_to_diag, IdentExt, ReturnTypeExt}; use self::syn::{Attribute, parse::Parser}; - -crate const CATCH_FN_PREFIX: &str = "rocket_catch_fn_"; -crate const CATCH_STRUCT_PREFIX: &str = "static_rocket_catch_info_for_"; +use {CATCH_FN_PREFIX, CATCH_STRUCT_PREFIX}; /// The raw, parsed `#[catch(code)]` attribute. #[derive(Debug, FromMeta)] @@ -72,9 +69,8 @@ pub fn _catch(args: TokenStream, input: TokenStream) -> Result<TokenStream> { .unwrap_or(Span::call_site().into()); let catcher_response = quote_spanned!(return_type_span => { - // Check the type signature. + // Emit this to force a type signature check. let __catcher: #fn_sig = #user_catcher_fn_name; - // Generate the response. ::rocket::response::Responder::respond_to(__catcher(#inputs), __req)? }); @@ -82,6 +78,7 @@ pub fn _catch(args: TokenStream, input: TokenStream) -> Result<TokenStream> { Ok(quote! { #user_catcher_fn + /// Rocket code generated wrapping catch function. #vis fn #generated_fn_name<'_b>( __req: &'_b ::rocket::Request ) -> ::rocket::response::Result<'_b> { @@ -92,6 +89,7 @@ pub fn _catch(args: TokenStream, input: TokenStream) -> Result<TokenStream> { .ok() } + /// Rocket code generated static catcher info. #[allow(non_upper_case_globals)] #vis static #generated_struct_name: ::rocket::StaticCatchInfo = ::rocket::StaticCatchInfo { @@ -102,11 +100,5 @@ pub fn _catch(args: TokenStream, input: TokenStream) -> Result<TokenStream> { } pub fn catch_attribute(args: TokenStream, input: TokenStream) -> TokenStream { - match _catch(args, input) { - Ok(tokens) => tokens, - Err(diag) => { - diag.emit(); - TokenStream::new() - } - } + _catch(args, input).unwrap_or_else(|d| { d.emit(); TokenStream::new() }) } diff --git a/core/codegen_next/src/attribute/mod.rs b/core/codegen_next/src/attribute/mod.rs @@ -1 +1,3 @@ pub mod catch; +pub mod route; +pub mod segments; diff --git a/core/codegen_next/src/attribute/route.rs b/core/codegen_next/src/attribute/route.rs @@ -0,0 +1,445 @@ +use proc_macro::{TokenStream, Span}; +use proc_macro2::TokenStream as TokenStream2; +use derive_utils::{syn, Spanned, Result, FromMeta, ext::TypeExt}; +use indexmap::IndexSet; + +use proc_macro_ext::Diagnostics; +use syn_ext::{syn_to_diag, IdentExt}; +use self::syn::{Attribute, parse::Parser}; + +use http_codegen::{Method, MediaType, RoutePath, DataSegment, Optional}; +use attribute::segments::{Source, Kind, Segment}; +use {ROUTE_FN_PREFIX, ROUTE_STRUCT_PREFIX, URI_MACRO_PREFIX, ROCKET_PARAM_PREFIX}; + +/// The raw, parsed `#[route]` attribute. +#[derive(Debug, FromMeta)] +struct RouteAttribute { + #[meta(naked)] + method: Method, + path: RoutePath, + data: Option<DataSegment>, + format: Option<MediaType>, + rank: Option<isize>, +} + +/// The raw, parsed `#[method]` (e.g, `get`, `put`, `post`, etc.) attribute. +#[derive(Debug, FromMeta)] +struct MethodRouteAttribute { + #[meta(naked)] + path: RoutePath, + data: Option<DataSegment>, + format: Option<MediaType>, + rank: Option<isize>, +} + +/// This structure represents the parsed `route` attribute and associated items. +#[derive(Debug)] +struct Route { + /// The status associated with the code in the `#[route(code)]` attribute. + attribute: RouteAttribute, + /// The function that was decorated with the `route` attribute. + function: syn::ItemFn, + /// The non-static parameters declared in the route segments. + segments: IndexSet<Segment>, + /// The parsed inputs to the user's function. The first ident is the ident + /// as the user wrote it, while the second ident is the identifier that + /// should be used during code generation, the `rocket_ident`. + inputs: Vec<(syn::Ident, syn::Ident, syn::Type)>, +} + +fn parse_route(attr: RouteAttribute, function: syn::ItemFn) -> Result<Route> { + // Gather diagnostics as we proceed. + let mut diags = Diagnostics::new(); + + // Collect all of the dynamic segments in an `IndexSet`, checking for dups. + let mut segments: IndexSet<Segment> = IndexSet::new(); + fn dup_check<I>(set: &mut IndexSet<Segment>, iter: I, diags: &mut Diagnostics) + where I: Iterator<Item = Segment> + { + for segment in iter.filter(|s| s.kind != Kind::Static) { + let span = segment.span; + if let Some(previous) = set.replace(segment) { + diags.push(span.error(format!("duplicate parameter: `{}`", previous.name)) + .span_note(previous.span, "previous parameter with the same name here")) + } + } + } + + dup_check(&mut segments, attr.path.path.iter().cloned(), &mut diags); + attr.path.query.as_ref().map(|q| dup_check(&mut segments, q.iter().cloned(), &mut diags)); + dup_check(&mut segments, attr.data.clone().map(|s| s.0).into_iter(), &mut diags); + + // Check the validity of function arguments. + let mut inputs = vec![]; + let mut fn_segments: IndexSet<Segment> = IndexSet::new(); + for input in &function.decl.inputs { + let help = "all handler arguments must be of the form: `ident: Type`"; + let span = input.span(); + let (ident, ty) = match input { + syn::FnArg::Captured(arg) => match arg.pat { + syn::Pat::Ident(ref pat) => (&pat.ident, &arg.ty), + syn::Pat::Wild(_) => { + diags.push(span.error("handler arguments cannot be ignored").help(help)); + continue; + } + _ => { + diags.push(span.error("invalid use of pattern").help(help)); + continue; + } + } + // Other cases shouldn't happen since we parsed an `ItemFn`. + _ => { + diags.push(span.error("invalid handler argument").help(help)); + continue; + } + }; + + let rocket_ident = ident.prepend(ROCKET_PARAM_PREFIX); + inputs.push((ident.clone(), rocket_ident, ty.with_stripped_lifetimes())); + fn_segments.insert(ident.into()); + } + + // Check that all of the declared parameters are function inputs. + let span = function.decl.inputs.span(); + for missing in segments.difference(&fn_segments) { + diags.push(missing.span.error("unused dynamic parameter") + .span_note(span, format!("expected argument named `{}` here", missing.name))) + } + + diags.head_err_or(Route { attribute: attr, function, inputs, segments }) +} + +fn param_expr(seg: &Segment, ident: &syn::Ident, ty: &syn::Type) -> TokenStream2 { + let i = seg.index.expect("dynamic parameters must be indexed"); + let span = ident.span().unstable().join(ty.span()).unwrap().into(); + let name = ident.to_string(); + + // All dynamic parameter should be found if this function is being called; + // that's the point of statically checking the URI parameters. + let internal_error = quote!({ + log_error("Internal invariant error: expected dynamic parameter not found."); + log_error("Please report this error to the Rocket issue tracker."); + Outcome::Forward(__data) + }); + + // Returned when a dynamic parameter fails to parse. + let parse_error = quote!({ + log_warn_(&format!("Failed to parse '{}': {:?}", #name, __e)); + Outcome::Forward(__data) + }); + + let expr = match seg.kind { + Kind::Single => quote_spanned! { span => + match __req.raw_segment_str(#i) { + Some(__s) => match <#ty as FromParam>::from_param(__s) { + Ok(__v) => __v, + Err(__e) => return #parse_error, + }, + None => return #internal_error + } + }, + Kind::Multi => quote_spanned! { span => + match __req.raw_segments(#i) { + Some(__s) => match <#ty as FromSegments>::from_segments(__s) { + Ok(__v) => __v, + Err(__e) => return #parse_error, + }, + None => return #internal_error + } + }, + Kind::Static => return quote!() + }; + + quote! { + #[allow(non_snake_case, unreachable_patterns, unreachable_code)] + let #ident: #ty = #expr; + } +} + +fn data_expr(ident: &syn::Ident, ty: &syn::Type) -> TokenStream2 { + let span = ident.span().unstable().join(ty.span()).unwrap().into(); + quote_spanned! { span => + let __transform = <#ty as FromData>::transform(__req, __data); + + #[allow(unreachable_patterns, unreachable_code)] + let __outcome = match __transform { + Owned(Outcome::Success(__v)) => Owned(Outcome::Success(__v)), + Borrowed(Outcome::Success(ref __v)) => { + Borrowed(Outcome::Success(::std::borrow::Borrow::borrow(__v))) + } + Borrowed(__o) => Borrowed(__o.map(|_| loop { /* unreachable */ })), + Owned(__o) => Owned(__o) + }; + + #[allow(non_snake_case, unreachable_patterns, unreachable_code)] + let #ident: #ty = match <#ty as FromData>::from_data(__req, __outcome) { + Outcome::Success(__d) => __d, + Outcome::Forward(__d) => return Outcome::Forward(__d), + Outcome::Failure((__c, _)) => return Outcome::Failure(__c), + }; + } +} + +fn query_exprs(route: &Route) -> Option<TokenStream2> { + let query_segments = route.attribute.path.query.as_ref()?; + let (mut decls, mut matchers, mut builders) = (vec![], vec![], vec![]); + for segment in query_segments { + let name = &segment.name; + let (ident, ty, span) = if segment.kind != Kind::Static { + let (ident, ty) = route.inputs.iter() + .find(|(ident, _, _)| ident == &segment.name) + .map(|(_, rocket_ident, ty)| (rocket_ident, ty)) + .unwrap(); + + let span = ident.span().unstable().join(ty.span()).unwrap(); + (Some(ident), Some(ty), span.into()) + } else { + (None, None, segment.span.into()) + }; + + let decl = match segment.kind { + Kind::Single => quote_spanned! { span => + let mut #ident: Option<#ty> = None; + }, + Kind::Multi => quote_spanned! { span => + let mut __trail = SmallVec::<[FormItem; 8]>::new(); + }, + Kind::Static => quote!() + }; + + let matcher = match segment.kind { + Kind::Single => quote_spanned! { span => + (_, #name, __v) => { + #ident = Some(match <#ty as FromFormValue>::from_form_value(__v) { + Ok(__v) => __v, + Err(__e) => { + log_warn_(&format!("Failed to parse '{}': {:?}", #name, __e)); + return Outcome::Forward(__data); + } + }); + } + }, + Kind::Static => quote! { + (#name, _, _) => continue, + }, + Kind::Multi => quote! { + _ => __trail.push(__i), + } + }; + + let builder = match segment.kind { + Kind::Single => quote_spanned! { span => + let #ident = match #ident.or_else(<#ty as FromFormValue>::default) { + Some(__v) => __v, + None => { + log_warn_(&format!("Missing required query parameter '{}'.", #name)); + return Outcome::Forward(__data); + } + }; + }, + Kind::Multi => quote_spanned! { span => + let #ident = match <#ty as FromQuery>::from_query(Query(&__trail)) { + Ok(__v) => __v, + Err(__e) => { + log_warn_(&format!("Failed to parse '{}': {:?}", #name, __e)); + return Outcome::Forward(__data); + } + }; + }, + Kind::Static => quote!() + }; + + decls.push(decl); + matchers.push(matcher); + builders.push(builder); + } + + matchers.push(quote!(_ => continue)); + Some(quote! { + #(#decls)* + + if let Some(__items) = __req.raw_query_items() { + for __i in __items { + match (__i.raw.as_str(), __i.key.as_str(), __i.value) { + #( + #[allow(unreachable_patterns, unreachable_code)] + #matchers + )* + } + } + } + + #( + #[allow(unreachable_patterns, unreachable_code)] + #builders + )* + }) +} + +fn request_guard_expr(ident: &syn::Ident, ty: &syn::Type) -> TokenStream2 { + let span = ident.span().unstable().join(ty.span()).unwrap().into(); + quote_spanned! { span => + #[allow(non_snake_case, unreachable_patterns, unreachable_code)] + let #ident: #ty = match <#ty as FromRequest>::from_request(__req) { + Outcome::Success(__v) => __v, + Outcome::Forward(_) => return Outcome::Forward(__data), + Outcome::Failure((__c, _)) => return Outcome::Failure(__c), + }; + } +} + +fn generate_internal_uri_macro(route: &Route) -> TokenStream2 { + let dynamic_args = route.segments.iter() + .filter(|seg| seg.source == Source::Path || seg.source == Source::Query) + .filter(|seg| seg.kind != Kind::Static) + .map(|seg| &seg.name) + .map(|name| route.inputs.iter().find(|(ident, ..)| ident == name).unwrap()) + .map(|(ident, _, ty)| quote!(#ident: #ty)); + + let generated_macro_name = route.function.ident.prepend(URI_MACRO_PREFIX); + let route_uri = route.attribute.path.origin.0.to_string(); + + quote! { + pub macro #generated_macro_name($($token:tt)*) { + rocket_internal_uri!(#route_uri, (#(#dynamic_args),*), $($token)*) + } + } +} + +fn codegen_route(route: Route) -> Result<TokenStream> { + // Generate the declarations for path, data, and request guard parameters. + let mut data_stmt = None; + let mut parameter_definitions = vec![]; + for (ident, rocket_ident, ty) in &route.inputs { + let fn_segment: Segment = ident.into(); + let parameter_def = match route.segments.get(&fn_segment) { + Some(seg) if seg.source == Source::Path => { + param_expr(seg, rocket_ident, &ty) + } + Some(seg) if seg.source == Source::Data => { + // the data statement needs to come last, so record it specially + data_stmt = Some(data_expr(rocket_ident, &ty)); + continue; + } + // handle query parameters later + Some(_) => continue, + None => request_guard_expr(rocket_ident, &ty), + }; + + parameter_definitions.push(parameter_def); + } + + // Generate the declarations for query parameters. + if let Some(exprs) = query_exprs(&route) { + parameter_definitions.push(exprs); + } + + // Gather everything we need. + let (vis, user_handler_fn) = (&route.function.vis, &route.function); + let user_handler_fn_name = &user_handler_fn.ident; + let generated_fn_name = user_handler_fn_name.prepend(ROUTE_FN_PREFIX); + let generated_struct_name = user_handler_fn_name.prepend(ROUTE_STRUCT_PREFIX); + let parameter_names = route.inputs.iter().map(|(_, rocket_ident, _)| rocket_ident); + let generated_internal_uri_macro = generate_internal_uri_macro(&route); + let method = route.attribute.method; + let path = route.attribute.path.origin.0.to_string(); + let rank = Optional(route.attribute.rank); + let format = Optional(route.attribute.format); + + Ok(quote! { + #user_handler_fn + + /// Rocket code generated wrapping route function. + #vis fn #generated_fn_name<'_b>( + __req: &'_b ::rocket::Request, + __data: ::rocket::Data + ) -> ::rocket::handler::Outcome<'_b> { + #[allow(unused_imports)] + use rocket::{ + handler, Outcome, + logger::{log_warn, log_error, log_warn_}, + data::{FromData, Transform::*}, + http::{SmallVec, RawStr}, + request::{FromRequest, FromParam, FromFormValue, FromSegments}, + request::{Query, FromQuery, FormItems, FormItem}, + }; + + #(#parameter_definitions)* + #data_stmt + + let ___responder = #user_handler_fn_name(#(#parameter_names),*); + handler::Outcome::from(__req, ___responder) + } + + /// Rocket code generated wrapping URI macro. + #generated_internal_uri_macro + + /// Rocket code generated static route info. + #[allow(non_upper_case_globals)] + #vis static #generated_struct_name: ::rocket::StaticRouteInfo = + ::rocket::StaticRouteInfo { + name: stringify!(#user_handler_fn_name), + method: #method, + path: #path, + handler: #generated_fn_name, + format: #format, + rank: #rank, + }; + }.into()) +} + +fn complete_route(args: TokenStream2, input: TokenStream) -> Result<TokenStream> { + let function: syn::ItemFn = syn::parse(input).map_err(syn_to_diag) + .map_err(|diag| diag.help("`#[route]` can only be used on functions"))?; + + let full_attr = quote!(#[route(#args)]); + let attrs = Attribute::parse_outer.parse2(full_attr).map_err(syn_to_diag)?; + let attribute = match RouteAttribute::from_attrs("route", &attrs) { + Some(result) => result?, + None => return Err(Span::call_site().error("internal error: bad attribute")) + }; + + codegen_route(parse_route(attribute, function)?) +} + +fn incomplete_route( + method: ::http::Method, + args: TokenStream2, + input: TokenStream +) -> Result<TokenStream> { + let method_str = method.to_string().to_lowercase(); + let method_ident = syn::Ident::new(&method_str, args.span().into()); + + let function: syn::ItemFn = syn::parse(input).map_err(syn_to_diag) + .map_err(|d| d.help(format!("#[{}] can only be used on functions", method_str)))?; + + let full_attr = quote!(#[#method_ident(#args)]); + let attrs = Attribute::parse_outer.parse2(full_attr).map_err(syn_to_diag)?; + let method_attribute = match MethodRouteAttribute::from_attrs(&method_str, &attrs) { + Some(result) => result?, + None => return Err(Span::call_site().error("internal error: bad attribute")) + }; + + let attribute = RouteAttribute { + method: Method(method), + path: method_attribute.path, + data: method_attribute.data, + format: method_attribute.format, + rank: method_attribute.rank, + }; + + codegen_route(parse_route(attribute, function)?) +} + +pub fn route_attribute<M: Into<Option<::http::Method>>>( + method: M, + args: TokenStream, + input: TokenStream +) -> TokenStream { + let result = match method.into() { + Some(method) => incomplete_route(method, args.into(), input), + None => complete_route(args.into(), input) + }; + + result.unwrap_or_else(|diag| { diag.emit(); TokenStream::new() }) +} diff --git a/core/codegen_next/src/attribute/segments.rs b/core/codegen_next/src/attribute/segments.rs @@ -0,0 +1,142 @@ +use std::hash::{Hash, Hasher}; + +use derive_utils::syn; +use proc_macro::{Span, Diagnostic}; + +use http::route::RouteSegment; +use proc_macro_ext::{SpanExt, Diagnostics, PResult, DResult}; + +pub use http::route::{Error, Kind, Source}; + +#[derive(Debug, Clone)] +pub struct Segment { + pub span: Span, + pub kind: Kind, + pub source: Source, + pub name: String, + pub index: Option<usize>, +} + +impl Segment { + fn from(segment: RouteSegment, span: Span) -> Segment { + let (kind, source, index) = (segment.kind, segment.source, segment.index); + Segment { span, kind, source, index, name: segment.name.into_owned() } + } + + crate fn to_route_segment<'a>(&'a self) -> String { + match (self.source, self.kind) { + (_, Kind::Single) => format!("<{}>", self.name), + (_, Kind::Multi) => format!("<{}..>", self.name), + (_, Kind::Static) => self.name.clone() + } + } +} + +impl<'a> From<&'a syn::Ident> for Segment { + fn from(ident: &syn::Ident) -> Segment { + Segment { + kind: Kind::Static, + source: Source::Unknown, + span: ident.span().unstable(), + name: ident.to_string(), + index: None, + } + } +} + +impl PartialEq for Segment { + fn eq(&self, other: &Segment) -> bool { + self.name == other.name + } +} + +impl Eq for Segment { } + +impl Hash for Segment { + fn hash<H: Hasher>(&self, state: &mut H) { + self.name.hash(state); + } +} + +pub fn subspan(needle: &str, haystack: &str, span: Span) -> Option<Span> { + let index = needle.as_ptr() as usize - haystack.as_ptr() as usize; + let remaining = haystack.len() - (index + needle.len()); + span.trimmed(index, remaining) +} + +pub fn trailspan(needle: &str, haystack: &str, span: Span) -> Option<Span> { + let index = needle.as_ptr() as usize - haystack.as_ptr() as usize; + span.trimmed(index - 1, 0) +} + +pub fn into_diagnostic( + segment: &str, // The segment that failed. + source: &str, // The haystack where `segment` can be found. + span: Span, // The `Span` of `Source`. + error: &Error, // The error. +) -> Diagnostic { + let seg_span = subspan(segment, source, span).unwrap(); + match error { + Error::Empty => { + seg_span.error("parameter names cannot be empty") + } + Error::Ident(name) => { + seg_span.error(format!("`{}` is not a valid identifier", name)) + .help("parameter names must be valid identifiers") + } + Error::Ignored => { + seg_span.error("parameters must be named") + .help("use a name such as `_guard` or `_param`") + } + Error::MissingClose => { + seg_span.error("parameter is missing a closing bracket") + .help(format!("did you mean '{}>'?", segment)) + } + Error::Malformed => { + seg_span.error("malformed parameter or identifier") + .help("parameters must be of the form '<param>'") + .help("identifiers cannot contain '<' or '>'") + } + Error::Uri => { + seg_span.error("component contains invalid URI characters") + .note("components cannot contain '%' and '+' characters") + } + Error::Trailing(multi) => { + let multi_span = subspan(multi, source, span).unwrap(); + trailspan(segment, source, span).unwrap() + .error("unexpected trailing text after a '..' param") + .help("a multi-segment param must be the final component") + .span_note(multi_span, "multi-segment param is here") + } + } +} + +pub fn parse_segment(segment: &str, span: Span) -> PResult<Segment> { + RouteSegment::parse_one(segment) + .map(|segment| Segment::from(segment, span)) + .map_err(|e| into_diagnostic(segment, segment, span, &e)) +} + +pub fn parse_segments( + string: &str, + sep: char, + source: Source, + span: Span +) -> DResult<Vec<Segment>> { + let mut segments = vec![]; + let mut diags = Diagnostics::new(); + + for result in RouteSegment::parse_many(string, sep, source) { + if let Err((segment_string, error)) = result { + diags.push(into_diagnostic(segment_string, string, span, &error)); + if let Error::Trailing(..) = error { + break; + } + } else if let Ok(segment) = result { + let seg_span = subspan(&segment.string, string, span).unwrap(); + segments.push(Segment::from(segment, seg_span)); + } + } + + diags.err_or(segments) +} diff --git a/core/codegen_next/src/bang/mod.rs b/core/codegen_next/src/bang/mod.rs @@ -4,17 +4,21 @@ use proc_macro2::TokenStream as TokenStream2; use derive_utils::{syn, Spanned, Result}; use self::syn::{Path, punctuated::Punctuated, parse::Parser, token::Comma}; use syn_ext::{IdentExt, syn_to_diag}; +use {ROUTE_STRUCT_PREFIX, CATCH_STRUCT_PREFIX}; mod uri; mod uri_parsing; - crate fn prefix_last_segment(path: &mut Path, prefix: &str) { let mut last_seg = path.segments.last_mut().expect("syn::Path has segments"); last_seg.value_mut().ident = last_seg.value().ident.prepend(prefix); } -fn _prefixed_vec(prefix: &str, input: TokenStream, ty: &TokenStream2) -> Result<TokenStream2> { +fn _prefixed_vec( + prefix: &str, + input: TokenStream, + ty: &TokenStream2 +) -> Result<TokenStream2> { // Parse a comma-separated list of paths. let mut paths = <Punctuated<Path, Comma>>::parse_terminated .parse(input) @@ -41,14 +45,10 @@ fn prefixed_vec(prefix: &str, input: TokenStream, ty: TokenStream2) -> TokenStre }).into() } -pub static ROUTE_STRUCT_PREFIX: &str = "static_rocket_route_info_for_"; - pub fn routes_macro(input: TokenStream) -> TokenStream { prefixed_vec(ROUTE_STRUCT_PREFIX, input, quote!(::rocket::Route)) } -pub static CATCH_STRUCT_PREFIX: &str = "static_rocket_catch_info_for_"; - pub fn catchers_macro(input: TokenStream) -> TokenStream { prefixed_vec(CATCH_STRUCT_PREFIX, input, quote!(::rocket::Catcher)) } diff --git a/core/codegen_next/src/derive/from_form.rs b/core/codegen_next/src/derive/from_form.rs @@ -112,7 +112,7 @@ pub fn derive_from_form(input: TokenStream) -> TokenStream { Ok(quote! { #(#constructors)* - for (__k, __v) in __items { + for (__k, __v) in __items.map(|item| item.key_value()) { match __k.as_str() { #(#matchers)* _ if __strict && __k != "_method" => { diff --git a/core/codegen_next/src/http_codegen.rs b/core/codegen_next/src/http_codegen.rs @@ -1,16 +1,38 @@ use quote::ToTokens; use proc_macro2::TokenStream as TokenStream2; use derive_utils::{FromMeta, MetaItem, Result, ext::Split2}; -use rocket_http as http; +use http::{self, ext::IntoOwned}; +use attribute::segments::{parse_segments, parse_segment, Segment, Kind, Source}; + +use proc_macro_ext::SpanExt; #[derive(Debug)] -pub struct ContentType(http::ContentType); +pub struct ContentType(pub http::ContentType); #[derive(Debug)] pub struct Status(pub http::Status); #[derive(Debug)] -struct MediaType(http::MediaType); +pub struct MediaType(pub http::MediaType); + +#[derive(Debug)] +pub struct Method(pub http::Method); + +#[derive(Debug)] +pub struct Origin(pub http::uri::Origin<'static>); + +#[derive(Clone, Debug)] +pub struct DataSegment(pub Segment); + +#[derive(Clone, Debug)] +pub struct Optional<T>(pub Option<T>); + +#[derive(Debug)] +pub struct RoutePath { + pub origin: Origin, + pub path: Vec<Segment>, + pub query: Option<Vec<Segment>>, +} impl FromMeta for Status { fn from_meta(meta: MetaItem) -> Result<Self> { @@ -34,7 +56,7 @@ impl FromMeta for ContentType { fn from_meta(meta: MetaItem) -> Result<Self> { http::ContentType::parse_flexible(&String::from_meta(meta)?) .map(ContentType) - .ok_or(meta.value_span().error("invalid or unknown content-type")) + .ok_or(meta.value_span().error("invalid or unknown content type")) } } @@ -46,6 +68,14 @@ impl ToTokens for ContentType { } } +impl FromMeta for MediaType { + fn from_meta(meta: MetaItem) -> Result<Self> { + http::MediaType::parse_flexible(&String::from_meta(meta)?) + .map(MediaType) + .ok_or(meta.value_span().error("invalid or unknown media type")) + } +} + impl ToTokens for MediaType { fn to_tokens(&self, tokens: &mut TokenStream2) { use std::iter::repeat; @@ -70,3 +100,141 @@ impl ToTokens for MediaType { })) } } + +const VALID_METHODS_STR: &str = "`GET`, `PUT`, `POST`, `DELETE`, `HEAD`, \ + `PATCH`, `OPTIONS`"; + +const VALID_METHODS: &[http::Method] = &[ + http::Method::Get, http::Method::Put, http::Method::Post, + http::Method::Delete, http::Method::Head, http::Method::Patch, + http::Method::Options, +]; + +impl FromMeta for Method { + fn from_meta(meta: MetaItem) -> Result<Self> { + let span = meta.value_span(); + let help_text = format!("method must be one of: {}", VALID_METHODS_STR); + + if let MetaItem::Ident(ident) = meta { + let method = ident.to_string().parse() + .map_err(|_| span.error("invalid HTTP method").help(&*help_text))?; + + if !VALID_METHODS.contains(&method) { + return Err(span.error("invalid HTTP method for route handlers") + .help(&*help_text)); + } + + return Ok(Method(method)); + } + + Err(span.error(format!("expected identifier, found {}", meta.description())) + .help(&*help_text)) + } +} + +impl ToTokens for Method { + fn to_tokens(&self, tokens: &mut TokenStream2) { + let method_tokens = match self.0 { + http::Method::Get => quote!(::rocket::http::Method::Get), + http::Method::Put => quote!(::rocket::http::Method::Put), + http::Method::Post => quote!(::rocket::http::Method::Post), + http::Method::Delete => quote!(::rocket::http::Method::Delete), + http::Method::Options => quote!(::rocket::http::Method::Options), + http::Method::Head => quote!(::rocket::http::Method::Head), + http::Method::Trace => quote!(::rocket::http::Method::Trace), + http::Method::Connect => quote!(::rocket::http::Method::Connect), + http::Method::Patch => quote!(::rocket::http::Method::Patch), + }; + + tokens.extend(method_tokens); + } +} + +impl FromMeta for Origin { + fn from_meta(meta: MetaItem) -> Result<Self> { + let string = String::from_meta(meta)?; + let span = meta.value_span(); + + let uri = http::uri::Origin::parse_route(&string) + .map_err(|e| { + let span = e.index() + .map(|i| span.trimmed(i + 1, 0).unwrap()) + .unwrap_or(span); + + span.error(format!("invalid path URI: {}", e)) + .help("expected path in origin form: \"/path/<param>\"") + })?; + + if !uri.is_normalized() { + let normalized = uri.to_normalized(); + return Err(span.error("paths cannot contain empty segments") + .note(format!("expected '{}', found '{}'", normalized, uri))); + } + + Ok(Origin(uri.into_owned())) + } +} + +impl FromMeta for Segment { + fn from_meta(meta: MetaItem) -> Result<Self> { + let string = String::from_meta(meta)?; + let span = meta.value_span().trimmed(1, 1).unwrap(); + + let segment = parse_segment(&string, span)?; + if segment.kind != Kind::Single { + return Err(span.error("malformed parameter") + .help("parameter must be of the form '<param>'")); + } + + Ok(segment) + } +} + +impl FromMeta for DataSegment { + fn from_meta(meta: MetaItem) -> Result<Self> { + let mut segment = Segment::from_meta(meta)?; + segment.source = Source::Data; + segment.index = Some(0); + Ok(DataSegment(segment)) + } +} + +impl FromMeta for RoutePath { + fn from_meta(meta: MetaItem) -> Result<Self> { + let origin = Origin::from_meta(meta)?; + + let span = meta.value_span().trimmed(1, 1).unwrap(); + let query_len = origin.0.query().map(|q| q.len() + 1).unwrap_or(0); + let path_span = span.trimmed(0, query_len).unwrap(); + let path = parse_segments(origin.0.path(), '/', Source::Path, path_span); + + let query = origin.0.query() + .map(|q| { + let len_to_q = origin.0.path().len() + 1; + let query_span = span.trimmed(len_to_q, 0).unwrap(); + if q.starts_with('&') || q.contains("&&") || q.ends_with('&') { + // TODO: Show a help message with what's expected. + Err(query_span.error("query cannot contain empty components").into()) + } else { + parse_segments(q, '&', Source::Query, query_span) + } + }).transpose(); + + match (path, query) { + (Ok(path), Ok(query)) => Ok(RoutePath { origin, path, query }), + (Err(diag), Ok(_)) | (Ok(_), Err(diag)) => Err(diag.emit_head()), + (Err(d1), Err(d2)) => Err(d1.join(d2).emit_head()) + } + } +} + +impl<T: ToTokens> ToTokens for Optional<T> { + fn to_tokens(&self, tokens: &mut TokenStream2) { + let opt_tokens = match self.0 { + Some(ref val) => quote!(Some(#val)), + None => quote!(None) + }; + + tokens.extend(opt_tokens); + } +} diff --git a/core/codegen_next/src/lib.rs b/core/codegen_next/src/lib.rs @@ -1,22 +1,52 @@ #![feature(proc_macro_diagnostic, proc_macro_span)] #![feature(crate_visibility_modifier)] +#![feature(transpose_result)] +#![feature(rustc_private)] #![recursion_limit="128"] #[macro_use] extern crate quote; #[macro_use] extern crate derive_utils; extern crate indexmap; extern crate proc_macro; -extern crate rocket_http; +extern crate rocket_http as http; +extern crate indexmap; + +extern crate syntax_pos; +#[macro_use] mod proc_macro_ext; mod derive; mod attribute; mod bang; mod http_codegen; mod syn_ext; +use http::Method; +use proc_macro::TokenStream; crate use derive_utils::proc_macro2; -use proc_macro::TokenStream; +crate static ROUTE_STRUCT_PREFIX: &str = "static_rocket_route_info_for_"; +crate static CATCH_STRUCT_PREFIX: &str = "static_rocket_catch_info_for_"; +crate static CATCH_FN_PREFIX: &str = "rocket_catch_fn_"; +crate static ROUTE_FN_PREFIX: &str = "rocket_route_fn_"; +crate static URI_MACRO_PREFIX: &str = "rocket_uri_macro_"; +crate static ROCKET_PARAM_PREFIX: &str = "__rocket_param_"; + +macro_rules! route_attribute { + ($name:ident => $method:expr) => ( + #[proc_macro_attribute] + pub fn $name(args: TokenStream, input: TokenStream) -> TokenStream { + attribute::route::route_attribute($method, args, input) + } + ) +} +route_attribute!(route => None); +route_attribute!(get => Method::Get); +route_attribute!(put => Method::Put); +route_attribute!(post => Method::Post); +route_attribute!(delete => Method::Delete); +route_attribute!(head => Method::Head); +route_attribute!(patch => Method::Patch); +route_attribute!(options => Method::Options); #[proc_macro_derive(FromFormValue, attributes(form))] pub fn derive_from_form_value(input: TokenStream) -> TokenStream { diff --git a/core/codegen_next/src/proc_macro_ext.rs b/core/codegen_next/src/proc_macro_ext.rs @@ -0,0 +1,98 @@ +use proc_macro::{Span, Diagnostic, /* MultiSpan */}; +use syntax_pos::{Span as InnerSpan, Pos, BytePos}; + +pub type PResult<T> = ::std::result::Result<T, Diagnostic>; + +pub type DResult<T> = ::std::result::Result<T, Diagnostics>; + +// An experiment. +pub struct Diagnostics(Vec<Diagnostic>); + +impl Diagnostics { + pub fn new() -> Self { + Diagnostics(vec![]) + } + + pub fn push(&mut self, diag: Diagnostic) { + self.0.push(diag); + } + + pub fn join(mut self, mut diags: Diagnostics) -> Self { + self.0.append(&mut diags.0); + self + } + + pub fn emit_head(self) -> Diagnostic { + let mut iter = self.0.into_iter(); + let mut last = iter.next().expect("Diagnostic::emit_head empty"); + for diag in iter { + last.emit(); + last = diag; + } + + last + } + + pub fn head_err_or<T>(self, ok: T) -> PResult<T> { + match self.0.is_empty() { + true => Ok(ok), + false => Err(self.emit_head()) + } + } + + pub fn err_or<T>(self, ok: T) -> DResult<T> { + match self.0.is_empty() { + true => Ok(ok), + false => Err(self) + } + } +} + +impl From<Diagnostic> for Diagnostics { + fn from(diag: Diagnostic) -> Self { + Diagnostics(vec![diag]) + } +} + +impl From<Vec<Diagnostic>> for Diagnostics { + fn from(diags: Vec<Diagnostic>) -> Self { + Diagnostics(diags) + } +} + +pub trait SpanExt { + fn trimmed(&self, left: usize, right: usize) -> Option<Span>; +} + +impl SpanExt for Span { + /// Trim the span on the left by `left` characters and on the right by + /// `right` characters. + fn trimmed(&self, left: usize, right: usize) -> Option<Span> { + let inner: InnerSpan = unsafe { ::std::mem::transmute(*self) }; + if left > u32::max_value() as usize || right > u32::max_value() as usize { + return None; + } + + // Ensure that the addition won't overflow. + let (left, right) = (left as u32, right as u32); + if u32::max_value() - left < inner.lo().to_u32() { + return None; + } + + // Ensure that the subtraction won't underflow. + if right > inner.hi().to_u32() { + return None; + } + + let new_lo = inner.lo() + BytePos(left); + let new_hi = inner.hi() - BytePos(right); + + // Ensure we're still inside the old `Span` and didn't cross paths. + if new_lo >= new_hi { + return None; + } + + let new_inner = inner.with_lo(new_lo).with_hi(new_hi); + Some(unsafe { ::std::mem::transmute(new_inner) }) + } +} diff --git a/core/codegen_next/tests/other-route.rs b/core/codegen_next/tests/other-route.rs @@ -0,0 +1,123 @@ +// #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + +// #[macro_use] extern crate rocket; + +// #[get("/", rank = 1)] +// fn get1() -> &'static str { "hi" } + +// #[get("/", rank = 2)] +// fn get2() -> &'static str { "hi" } + +// #[get("/", rank = 3)] +// fn get3() -> &'static str { "hi" } + +// #[get("/")] fn get() { } +// #[route(GET, "/")] fn get_r() { } + +// #[put("/")] fn put() { } +// #[route(PUT, "/")] fn put_r() { } + +// #[post("/")] fn post() { } +// #[route(POST, "/")] fn post_r() { } + +// #[delete("/")] fn delete() { } +// #[route(DELETE, "/")] fn delete_r() { } + +// #[head("/")] fn head() { } +// #[route(HEAD, "/")] fn head_r() { } + +// #[patch("/")] fn patch() { } +// #[route(PATCH, "/")] fn patch_r() { } + +// #[options("/")] fn options() { } +// #[route(OPTIONS, "/")] fn options_r() { } + +// use rocket::http::{Cookies, RawStr}; +// use rocket::request::Form; + +// #[derive(FromForm)] +// struct User<'a> { +// name: &'a RawStr, +// nickname: String, +// } + +// #[post("/<_name>?<_query>", format = "application/json", data = "<user>", rank = 2)] +// fn get( +// _name: &RawStr, +// _query: User, +// user: Form<User>, +// _cookies: Cookies +// ) -> String { +// format!("{}:{}", user.name, user.nickname) +// } + +// #[post("/", format = "application/x-custom")] +// fn get() -> &'static str { "hi" } + +// #[get("/test/<one>/<two>/<three>")] +// fn get(one: String, two: usize, three: isize) -> &'static str { "hi" } + +// #[get("/test/<_one>/<_two>/<__three>")] +// fn ignored(_one: String, _two: usize, __three: isize) -> &'static str { "hi" } + +// #[get("/")] +// fn get() -> &'static str { "hi" } + +// #[get("/")] +// fn get_empty() { } + +// #[get("/one")] +// fn one() { } + +// #[get("/two")] +// fn two() { } + +// #[get("/three")] +// fn three() { } + +// #[get("/four")] +// fn four() { } + +// #[test] +// fn main() { +// let instance = rocket::ignite() +// .mount("/", routes![one]); + +// let other = instance.mount("/", routes![two]); +// other.mount("/", routes![three]) +// .mount("/", routes![four]); + +// rocket::ignite() +// .mount("/", routes![one]) +// .mount("/", routes![two]) +// .mount("/", routes![three]) +// .mount("/", routes![four]); + +// let a = rocket::ignite() +// .mount("/", routes![one]) +// .mount("/", routes![two]); + +// let b = a.mount("/", routes![three]) +// .mount("/", routes![four]); +// } + +// #[get("/<todo>")] +// fn todo(todo: String) -> String { +// todo +// } + +// #[post("/<a>/<b..>")] +// fn get(a: String, b: PathBuf) -> String { +// format!("{}/{}", a, b.to_string_lossy()) +// } + +// #[post("/<a>/<b..>")] +// fn get2(a: String, b: Result<PathBuf, SegmentError>) -> String { +// format!("{}/{}", a, b.unwrap().to_string_lossy()) +// } + + +// #[test] +// fn main() { +// let _ = routes![todo]; +// } diff --git a/core/codegen_next/tests/route-data.rs b/core/codegen_next/tests/route-data.rs @@ -0,0 +1,58 @@ +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + +#[macro_use] extern crate rocket; + +use std::io::Read; + +use rocket::{Request, Data, Outcome::*}; +use rocket::local::Client; +use rocket::request::Form; +use rocket::data::{self, FromDataSimple}; +use rocket::http::{RawStr, ContentType, Status}; + +// Test that the data parameters works as expected. + +#[derive(FromForm)] +struct Inner<'r> { + field: &'r RawStr +} + +struct Simple(String); + +impl FromDataSimple for Simple { + type Error = (); + + fn from_data(_: &Request, data: Data) -> data::Outcome<Self, ()> { + let mut string = String::new(); + if let Err(_) = data.open().take(64).read_to_string(&mut string) { + return Failure((Status::InternalServerError, ())); + } + + Success(Simple(string)) + } +} + +#[post("/f", data = "<form>")] +fn form(form: Form<Inner>) -> String { form.field.url_decode_lossy() } + +#[post("/s", data = "<simple>")] +fn simple(simple: Simple) -> String { simple.0 } + +#[test] +fn test_data() { + let rocket = rocket::ignite().mount("/", routes![form, simple]); + let client = Client::new(rocket).unwrap(); + + let mut response = client.post("/f") + .header(ContentType::Form) + .body("field=this%20is%20here") + .dispatch(); + + assert_eq!(response.body_string().unwrap(), "this is here"); + + let mut response = client.post("/s").body("this is here").dispatch(); + assert_eq!(response.body_string().unwrap(), "this is here"); + + let mut response = client.post("/s").body("this%20is%20here").dispatch(); + assert_eq!(response.body_string().unwrap(), "this%20is%20here"); +} diff --git a/core/codegen_next/tests/route-format.rs b/core/codegen_next/tests/route-format.rs @@ -0,0 +1,106 @@ +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + +#[macro_use] extern crate rocket; + +use rocket::local::Client; +use rocket::http::{ContentType, MediaType, Accept, Status}; + +// Test that known formats work as expected, including not colliding. + +#[post("/", format = "json")] +fn json() -> &'static str { "json" } + +#[post("/", format = "xml")] +fn xml() -> &'static str { "xml" } + +// Unreachable. Written for codegen. +#[post("/", format = "application/json", rank = 2)] +fn json_long() -> &'static str { "json_long" } + +#[post("/", format = "application/msgpack")] +fn msgpack_long() -> &'static str { "msgpack_long" } + +// Unreachable. Written for codegen. +#[post("/", format = "msgpack", rank = 2)] +fn msgpack() -> &'static str { "msgpack" } + +#[get("/", format = "plain")] +fn plain() -> &'static str { "plain" } + +#[get("/", format = "binary")] +fn binary() -> &'static str { "binary" } + +#[get("/", rank = 2)] +fn other() -> &'static str { "other" } + +#[test] +fn test_formats() { + let rocket = rocket::ignite() + .mount("/", routes![json, xml, json_long, msgpack_long, msgpack, + plain, binary, other]); + + let client = Client::new(rocket).unwrap(); + + let mut response = client.post("/").header(ContentType::JSON).dispatch(); + assert_eq!(response.body_string().unwrap(), "json"); + + let mut response = client.post("/").header(ContentType::MsgPack).dispatch(); + assert_eq!(response.body_string().unwrap(), "msgpack_long"); + + let mut response = client.post("/").header(ContentType::XML).dispatch(); + assert_eq!(response.body_string().unwrap(), "xml"); + + let mut response = client.get("/").header(Accept::Plain).dispatch(); + assert_eq!(response.body_string().unwrap(), "plain"); + + let mut response = client.get("/").header(Accept::Binary).dispatch(); + assert_eq!(response.body_string().unwrap(), "binary"); + + let mut response = client.get("/").header(ContentType::JSON).dispatch(); + assert_eq!(response.body_string().unwrap(), "other"); + + let mut response = client.get("/").dispatch(); + assert_eq!(response.body_string().unwrap(), "other"); +} + +// Test custom formats. + +#[get("/", format = "application/foo")] +fn get_foo() -> &'static str { "get_foo" } + +#[post("/", format = "application/foo")] +fn post_foo() -> &'static str { "post_foo" } + +#[get("/", format = "bar/baz")] +fn get_bar_baz() -> &'static str { "get_bar_baz" } + +#[put("/", format = "bar/baz")] +fn put_bar_baz() -> &'static str { "put_bar_baz" } + +#[test] +fn test_custom_formats() { + let rocket = rocket::ignite() + .mount("/", routes![get_foo, post_foo, get_bar_baz, put_bar_baz]); + + let client = Client::new(rocket).unwrap(); + + let foo_a = Accept::new(&[MediaType::new("application", "foo").into()]); + let foo_ct = ContentType::new("application", "foo"); + let bar_baz_ct = ContentType::new("bar", "baz"); + let bar_baz_a = Accept::new(&[MediaType::new("bar", "baz").into()]); + + let mut response = client.get("/").header(foo_a).dispatch(); + assert_eq!(response.body_string().unwrap(), "get_foo"); + + let mut response = client.post("/").header(foo_ct).dispatch(); + assert_eq!(response.body_string().unwrap(), "post_foo"); + + let mut response = client.get("/").header(bar_baz_a).dispatch(); + assert_eq!(response.body_string().unwrap(), "get_bar_baz"); + + let mut response = client.put("/").header(bar_baz_ct).dispatch(); + assert_eq!(response.body_string().unwrap(), "put_bar_baz"); + + let response = client.get("/").dispatch(); + assert_eq!(response.status(), Status::NotFound); +} diff --git a/core/codegen_next/tests/route-params.rs b/core/codegen_next/tests/route-params.rs @@ -0,0 +1,10 @@ +// #[post("/<_name>?<_query>", format = "application/json", data = "<user>", rank = 2)] +// fn get( +// _name: &RawStr, +// _query: User, +// user: Form<User>, +// _cookies: Cookies +// ) -> String { +// format!("{}:{}", user.name, user.nickname) +// } + diff --git a/core/codegen_next/tests/route-ranking.rs b/core/codegen_next/tests/route-ranking.rs @@ -0,0 +1,55 @@ +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + +#[macro_use] extern crate rocket; + +use rocket::local::Client; + +// Test that manual/auto ranking works as expected. + +#[get("/<_number>")] +fn get0(_number: u8) -> &'static str { "0" } + +#[get("/<_number>", rank = 1)] +fn get1(_number: u16) -> &'static str { "1" } + +#[get("/<_number>", rank = 2)] +fn get2(_number: u32) -> &'static str { "2" } + +#[get("/<_number>", rank = 3)] +fn get3(_number: u64) -> &'static str { "3" } + +#[test] +fn test_ranking() { + let rocket = rocket::ignite().mount("/", routes![get0, get1, get2, get3]); + let client = Client::new(rocket).unwrap(); + + let mut response = client.get("/0").dispatch(); + assert_eq!(response.body_string().unwrap(), "0"); + + let mut response = client.get(format!("/{}", 1 << 8)).dispatch(); + assert_eq!(response.body_string().unwrap(), "1"); + + let mut response = client.get(format!("/{}", 1 << 16)).dispatch(); + assert_eq!(response.body_string().unwrap(), "2"); + + let mut response = client.get(format!("/{}", 1u64 << 32)).dispatch(); + assert_eq!(response.body_string().unwrap(), "3"); +} + +// Test a collision due to same auto rank. + +#[get("/<_n>")] +fn get0b(_n: u8) { } + +#[test] +fn test_rank_collision() { + use rocket::error::LaunchErrorKind; + + let rocket = rocket::ignite().mount("/", routes![get0, get0b]); + let client_result = Client::new(rocket); + match client_result.as_ref().map_err(|e| e.kind()) { + Err(LaunchErrorKind::Collision(..)) => { /* o.k. */ }, + Ok(_) => panic!("client succeeded unexpectedly"), + Err(e) => panic!("expected collision, got {}", e) + } +} diff --git a/core/codegen_next/tests/route.rs b/core/codegen_next/tests/route.rs @@ -0,0 +1,122 @@ +#![feature(plugin, proc_macro_non_items, proc_macro_gen, decl_macro)] +#![plugin(rocket_codegen)] + +#[macro_use] extern crate rocket; + +use std::fmt; +use std::path::PathBuf; + +use rocket::{Request, Outcome::*}; +use rocket::local::Client; +use rocket::data::{self, Data, FromDataSimple}; +use rocket::request::Form; +use rocket::http::{Status, RawStr, ContentType, uri::UriDisplay}; + +// Use all of the code generation avaiable at once. + +#[derive(FromForm)] +struct Inner<'r> { + field: &'r RawStr +} + +// TODO: Make this deriveable. +impl<'a> UriDisplay for Inner<'a> { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + write!(f, "field={}", self.field) + } +} + +struct Simple(String); + +impl FromDataSimple for Simple { + type Error = (); + + fn from_data(_: &Request, data: Data) -> data::Outcome<Self, ()> { + use std::io::Read; + let mut string = String::new(); + data.open().take(64).read_to_string(&mut string).unwrap(); + Success(Simple(string)) + } +} + +#[post("/<a>/<name>/name/<path..>?sky=blue&<sky>&<query..>", format = "json", data = "<simple>", rank = 138)] +fn post1( + sky: usize, + name: &RawStr, + a: String, + query: Form<Inner>, + path: PathBuf, + simple: Simple, +) -> String { + let string = format!("{}, {}, {}, {}, {}, {}", + sky, name, a, query.field, path.display(), simple.0); + + let uri = uri!(post2: a, name.url_decode_lossy(), path, sky, query.into_inner()); + + format!("({}) ({})", string, uri.to_string()) +} + +#[route(POST, path = "/<a>/<name>/name/<path..>?sky=blue&<sky>&<query..>", format = "json", data = "<simple>", rank = 138)] +fn post2( + sky: usize, + name: &RawStr, + a: String, + query: Form<Inner>, + path: PathBuf, + simple: Simple, +) -> String { + let string = format!("{}, {}, {}, {}, {}, {}", + sky, name, a, query.field, path.display(), simple.0); + + let uri = uri!(post2: a, name.url_decode_lossy(), path, sky, query.into_inner()); + + format!("({}) ({})", string, uri.to_string()) +} + +#[test] +fn test_full_route() { + let rocket = rocket::ignite() + .mount("/1", routes![post1]) + .mount("/2", routes![post2]); + + let client = Client::new(rocket).unwrap(); + + let a = "A%20A"; + let name = "Bob%20McDonald"; + let path = "this/path/here"; + let sky = 777; + let query = "field=inside"; + let simple = "data internals"; + + let path_part = format!("/{}/{}/name/{}", a, name, path); + let query_part = format!("?sky={}&sky=blue&{}", sky, query); + let uri = format!("{}{}", path_part, query_part); + let expected_uri = format!("{}?sky=blue&sky={}&{}", path_part, sky, query); + + let response = client.post(&uri).body(simple).dispatch(); + assert_eq!(response.status(), Status::NotFound); + + let response = client.post(format!("/1{}", uri)).body(simple).dispatch(); + assert_eq!(response.status(), Status::NotFound); + + let mut response = client + .post(format!("/1{}", uri)) + .header(ContentType::JSON) + .body(simple) + .dispatch(); + + assert_eq!(response.body_string().unwrap(), format!("({}, {}, {}, {}, {}, {}) ({})", + sky, name, "A A", "inside", path, simple, expected_uri)); + + let response = client.post(format!("/2{}", uri)).body(simple).dispatch(); + assert_eq!(response.status(), Status::NotFound); + + let mut response = client + .post(format!("/2{}", uri)) + .header(ContentType::JSON) + .body(simple) + .dispatch(); + + assert_eq!(response.body_string().unwrap(), format!("({}, {}, {}, {}, {}, {}) ({})", + sky, name, "A A", "inside", path, simple, expected_uri)); +} diff --git a/core/codegen_next/tests/ui-fail/catch.rs b/core/codegen_next/tests/ui-fail/catch.rs @@ -16,11 +16,11 @@ const CATCH: &str = "Catcher"; //~^ HELP #[catch(404)] fn e1(_request: &Request) { } -#[catch(code = "404")] //~ ERROR unexpected named parameter +#[catch(code = "404")] //~ ERROR unexpected parameter //~^ HELP #[catch(404)] fn e2(_request: &Request) { } -#[catch(code = 404)] //~ ERROR unexpected named parameter +#[catch(code = 404)] //~ ERROR unexpected parameter //~^ HELP #[catch(404)] fn e3(_request: &Request) { } diff --git a/core/codegen_next/tests/ui-fail/catch.stderr b/core/codegen_next/tests/ui-fail/catch.stderr @@ -22,7 +22,7 @@ error: invalid value: expected unsigned integer literal | = help: `#[catch]` expects a single status integer, e.g.: #[catch(404)] -error: unexpected named parameter: expected bare literal +error: unexpected parameter: expected literal or identifier --> $DIR/catch.rs:19:9 | 19 | #[catch(code = "404")] //~ ERROR unexpected named parameter @@ -30,7 +30,7 @@ error: unexpected named parameter: expected bare literal | = help: `#[catch]` expects a single status integer, e.g.: #[catch(404)] -error: unexpected named parameter: expected bare literal +error: unexpected parameter: expected literal or identifier --> $DIR/catch.rs:23:9 | 23 | #[catch(code = 404)] //~ ERROR unexpected named parameter diff --git a/core/http/Cargo.toml b/core/http/Cargo.toml @@ -26,6 +26,7 @@ rustls = { version = "0.13", optional = true } state = "0.4" cookie = { version = "0.11", features = ["percent-encode", "secure"] } pear = { git = "http://github.com/SergioBenitez/Pear", rev = "b475140" } +unicode-xid = "0.1" [dependencies.hyper-sync-rustls] version = "=0.3.0-rc.3" diff --git a/core/http/src/cookies.rs b/core/http/src/cookies.rs @@ -35,9 +35,8 @@ use Header; /// a handler to retrieve the value of a "message" cookie. /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// use rocket::http::Cookies; /// /// #[get("/message")] @@ -56,9 +55,8 @@ use Header; /// [private cookie]: /rocket/http/enum.Cookies.html#private-cookies /// /// ```rust -/// # #![feature(plugin, decl_macro, never_type)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro, never_type)] +/// # #[macro_use] extern crate rocket; /// # /// use rocket::http::Status; /// use rocket::outcome::IntoOutcome; diff --git a/core/http/src/lib.rs b/core/http/src/lib.rs @@ -21,6 +21,7 @@ extern crate cookie; extern crate time; extern crate indexmap; extern crate state; +extern crate unicode_xid; pub mod hyper; pub mod uri; @@ -30,6 +31,9 @@ pub mod ext; #[cfg(feature = "tls")] pub mod tls; +#[doc(hidden)] +pub mod route; + #[macro_use] mod docify; #[macro_use] @@ -50,18 +54,19 @@ pub mod uncased; // We need to export these for codegen, but otherwise it's unnecessary. // TODO: Expose a `const fn` from ContentType when possible. (see RFC#1817) // FIXME(rustc): These show up in the rexported module. -#[doc(hidden)] pub use self::parse::Indexed; -#[doc(hidden)] pub use self::media_type::{MediaParams, Source}; +#[doc(hidden)] pub use parse::Indexed; +#[doc(hidden)] pub use media_type::{MediaParams, Source}; +#[doc(hidden)] pub use smallvec::{SmallVec, Array}; // This one we need to expose for core. -#[doc(hidden)] pub use self::cookies::{Key, CookieJar}; +#[doc(hidden)] pub use cookies::{Key, CookieJar}; -pub use self::method::Method; -pub use self::content_type::ContentType; -pub use self::accept::{Accept, QMediaType}; -pub use self::status::{Status, StatusClass}; -pub use self::header::{Header, HeaderMap}; -pub use self::raw_str::RawStr; +pub use method::Method; +pub use content_type::ContentType; +pub use accept::{Accept, QMediaType}; +pub use status::{Status, StatusClass}; +pub use header::{Header, HeaderMap}; +pub use raw_str::RawStr; -pub use self::media_type::MediaType; -pub use self::cookies::{Cookie, SameSite, Cookies}; +pub use media_type::MediaType; +pub use cookies::{Cookie, SameSite, Cookies}; diff --git a/core/http/src/parse/indexed.rs b/core/http/src/parse/indexed.rs @@ -45,6 +45,16 @@ impl<'a, T: ?Sized + ToOwned + 'a, C: Into<Cow<'a, T>>> From<C> for Indexed<'a, } impl<'a, T: ?Sized + ToOwned + 'a> Indexed<'a, T> { + /// Panics if `self` is not an `Indexed`. + #[inline(always)] + pub fn indices(self) -> (usize, usize) { + match self { + Indexed::Indexed(a, b) => (a, b), + _ => panic!("cannot convert indexed T to U unless indexed") + } + } + + /// Panics if `self` is not an `Indexed`. #[inline(always)] pub fn coerce<U: ?Sized + ToOwned>(self) -> Indexed<'a, U> { match self { @@ -53,6 +63,7 @@ impl<'a, T: ?Sized + ToOwned + 'a> Indexed<'a, T> { } } + /// Panics if `self` is not an `Indexed`. #[inline(always)] pub fn coerce_lifetime<'b>(self) -> Indexed<'b, T> { match self { diff --git a/core/http/src/parse/uri/error.rs b/core/http/src/parse/uri/error.rs @@ -39,6 +39,22 @@ impl<'a> Error<'a> { Error { expected: new_expected, context: pear_error.context } } + + /// Returns the byte index into the text where the error occurred if it is + /// known. + /// + /// # Example + /// + /// ```rust + /// # extern crate rocket; + /// use rocket::http::uri::Origin; + /// + /// let err = Origin::parse("/foo bar").unwrap_err(); + /// assert_eq!(err.index(), Some(4)); + /// ``` + pub fn index(&self) -> Option<usize> { + self.context.as_ref().map(|c| c.offset) + } } impl fmt::Display for Or<char, u8> { diff --git a/core/http/src/raw_str.rs b/core/http/src/raw_str.rs @@ -44,7 +44,7 @@ use uncased::UncasedStr; /// /// [`FromParam`]: /rocket/request/trait.FromParam.html /// [`FromFormValue`]: /rocket/request/trait.FromFormValue.html -#[repr(C)] +#[repr(transparent)] #[derive(Debug, PartialEq, Eq, PartialOrd, Ord, Hash)] pub struct RawStr(str); @@ -154,12 +154,51 @@ impl RawStr { /// assert_eq!(decoded, Ok("Hello, world!".to_string())); /// ``` pub fn url_decode(&self) -> Result<String, Utf8Error> { + // TODO: Make this more efficient! let replaced = self.replace("+", " "); RawStr::from_str(replaced.as_str()) .percent_decode() .map(|cow| cow.into_owned()) } + /// Returns a URL-decoded version of the string. + /// + /// Any invalid UTF-8 percent-encoded byte sequences will be replaced � + /// U+FFFD, the replacement character. This is identical to lossy percent + /// decoding except that `+` characters are converted into spaces. This is + /// the encoding used by form values. + /// + /// # Example + /// + /// With a valid string: + /// + /// ```rust + /// # extern crate rocket; + /// use rocket::http::RawStr; + /// + /// let raw_str: &RawStr = "Hello%2C+world%21".into(); + /// let decoded = raw_str.url_decode_lossy(); + /// assert_eq!(decoded, "Hello, world!"); + /// ``` + /// + /// With an invalid string: + /// + /// ```rust + /// # extern crate rocket; + /// use rocket::http::RawStr; + /// + /// // Note: Rocket should never hand you a bad `&RawStr`. + /// let bad_str = unsafe { ::std::str::from_utf8_unchecked(b"a+b=\xff") }; + /// let bad_raw_str = RawStr::from_str(bad_str); + /// assert_eq!(bad_raw_str.url_decode_lossy(), "a b=�"); + /// ``` + pub fn url_decode_lossy(&self) -> String { + let replaced = self.replace("+", " "); + RawStr::from_str(replaced.as_str()) + .percent_decode_lossy() + .into_owned() + } + /// Returns an HTML escaped version of `self`. Allocates only when /// characters need to be escaped. /// diff --git a/core/http/src/route.rs b/core/http/src/route.rs @@ -0,0 +1,157 @@ +use std::borrow::Cow; +use unicode_xid::UnicodeXID; + +use ext::IntoOwned; +use uri::{Uri, Origin}; + +use self::Error::*; + +#[derive(Debug, PartialEq, Eq, Copy, Clone)] +pub enum Kind { + Static, + Single, + Multi, +} + +#[derive(Debug, PartialEq, Eq, Copy, Clone)] +pub enum Source { + Path, + Query, + Data, + Unknown, +} + +#[derive(Debug, Clone)] +pub struct RouteSegment<'a> { + pub string: Cow<'a, str>, + pub kind: Kind, + pub source: Source, + pub name: Cow<'a, str>, + pub index: Option<usize>, +} + +impl<'a> IntoOwned for RouteSegment<'a> { + type Owned = RouteSegment<'static>; + + #[inline] + fn into_owned(self) -> Self::Owned { + RouteSegment { + string: IntoOwned::into_owned(self.string), + kind: self.kind, + source: self.source, + name: IntoOwned::into_owned(self.name), + index: self.index, + } + } +} + +#[derive(Debug, PartialEq, Eq, Copy, Clone)] +pub enum Error<'a> { + Empty, + Ident(&'a str), + Ignored, + MissingClose, + Malformed, + Uri, + Trailing(&'a str) +} + +pub type SResult<'a> = Result<RouteSegment<'a>, (&'a str, Error<'a>)>; + +#[inline] +fn is_ident_start(c: char) -> bool { + ('a' <= c && c <= 'z') + || ('A' <= c && c <= 'Z') + || c == '_' + || (c > '\x7f' && UnicodeXID::is_xid_start(c)) +} + +#[inline] +fn is_ident_continue(c: char) -> bool { + ('a' <= c && c <= 'z') + || ('A' <= c && c <= 'Z') + || c == '_' + || ('0' <= c && c <= '9') + || (c > '\x7f' && UnicodeXID::is_xid_continue(c)) +} + +fn is_valid_ident(string: &str) -> bool { + let mut chars = string.chars(); + match chars.next() { + Some(c) => is_ident_start(c) && chars.all(is_ident_continue), + None => false + } +} + +impl<'a> RouteSegment<'a> { + pub fn parse_one(segment: &str) -> Result<RouteSegment, Error> { + let (string, source, index) = (segment.into(), Source::Unknown, None); + + // Check if this is a dynamic param. If so, check its well-formedness. + if segment.starts_with('<') && segment.ends_with('>') { + let mut kind = Kind::Single; + let mut name = &segment[1..(segment.len() - 1)]; + if name.ends_with("..") { + kind = Kind::Multi; + name = &name[..(name.len() - 2)]; + } + + if name.is_empty() { + return Err(Empty); + } else if !is_valid_ident(name) { + return Err(Ident(name)); + } else if name == "_" { + return Err(Ignored); + } + + let name = name.into(); + return Ok(RouteSegment { string, source, name, kind, index }); + } else if segment.is_empty() { + return Err(Empty); + } else if segment.starts_with('<') && segment.len() > 1 { + return Err(MissingClose); + } else if segment.contains('>') || segment.contains('<') { + return Err(Malformed); + } else if Uri::percent_encode(segment) != segment + || Uri::percent_decode_lossy(segment.as_bytes()) != segment + || segment.contains('+') { + return Err(Uri); + } + + Ok(RouteSegment { + string, source, index, + name: segment.into(), + kind: Kind::Static, + }) + } + + pub fn parse_many( + string: &str, + sep: char, + source: Source, + ) -> impl Iterator<Item = SResult> { + let mut last_multi_seg: Option<&str> = None; + string.split(sep).filter(|s| !s.is_empty()).enumerate().map(move |(i, seg)| { + if let Some(multi_seg) = last_multi_seg { + return Err((seg, Trailing(multi_seg))); + } + + let mut parsed = Self::parse_one(seg).map_err(|e| (seg, e))?; + if parsed.kind == Kind::Multi { + last_multi_seg = Some(seg); + } + + parsed.index = Some(i); + parsed.source = source; + Ok(parsed) + }) + } + + pub fn parse_path(uri: &'a Origin) -> impl Iterator<Item = SResult<'a>> { + Self::parse_many(uri.path(), '/', Source::Path) + } + + pub fn parse_query(uri: &'a Origin) -> Option<impl Iterator<Item = SResult<'a>>> { + uri.query().map(|q| Self::parse_many(q, '&', Source::Query)) + } +} diff --git a/core/http/src/uri/from_uri_param.rs b/core/http/src/uri/from_uri_param.rs @@ -98,7 +98,7 @@ use {RawStr, uri::UriDisplay}; /// /// [`uri!`]: /rocket_codegen/#typed-uris-uri /// [`UriDisplay`]: /rocket/http/uri/trait.UriDisplay.html -pub trait FromUriParam<T>: UriDisplay { +pub trait FromUriParam<T> { /// The resulting type of this conversion. type Target: UriDisplay; @@ -141,6 +141,20 @@ impl<'a, 'b> FromUriParam<&'a str> for &'b RawStr { fn from_uri_param(param: &'a str) -> &'a str { param } } +/// A no cost conversion allowing a `String` to be used in place of an `&RawStr`. +impl<'a> FromUriParam<String> for &'a RawStr { + type Target = String; + #[inline(always)] + fn from_uri_param(param: String) -> String { param } +} + +/// A no cost conversion allowing a `String` to be used in place of an `&str`. +impl<'a> FromUriParam<String> for &'a str { + type Target = String; + #[inline(always)] + fn from_uri_param(param: String) -> String { param } +} + /// A no cost conversion allowing an `&Path` to be used in place of a `PathBuf`. impl<'a> FromUriParam<&'a Path> for PathBuf { type Target = &'a Path; @@ -151,6 +165,7 @@ impl<'a> FromUriParam<&'a Path> for PathBuf { /// A no cost conversion allowing an `&str` to be used in place of a `PathBuf`. impl<'a> FromUriParam<&'a str> for PathBuf { type Target = &'a Path; + #[inline(always)] fn from_uri_param(param: &'a str) -> &'a Path { Path::new(param) diff --git a/core/lib/benches/format-routing.rs b/core/lib/benches/format-routing.rs @@ -1,7 +1,6 @@ -#![feature(test, plugin, decl_macro)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -extern crate rocket; +#[macro_use] extern crate rocket; use rocket::config::{Environment, Config, LoggingLevel}; diff --git a/core/lib/benches/ranked-routing.rs b/core/lib/benches/ranked-routing.rs @@ -1,7 +1,6 @@ -#![feature(test, plugin, decl_macro)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -extern crate rocket; +#[macro_use] extern crate rocket; use rocket::config::{Environment, Config, LoggingLevel}; diff --git a/core/lib/benches/simple-routing.rs b/core/lib/benches/simple-routing.rs @@ -1,9 +1,8 @@ -#![feature(test, plugin, decl_macro)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] // #![feature(alloc_system)] // extern crate alloc_system; -extern crate rocket; +#[macro_use] extern crate rocket; use rocket::config::{Environment, Config, LoggingLevel}; use rocket::http::RawStr; diff --git a/core/lib/src/catcher.rs b/core/lib/src/catcher.rs @@ -33,8 +33,7 @@ use yansi::Color::*; /// declared using the `catch` decorator, as follows: /// /// ```rust -/// #![feature(plugin, decl_macro, proc_macro_non_items)] -/// #![plugin(rocket_codegen)] +/// #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// /// #[macro_use] extern crate rocket; /// diff --git a/core/lib/src/data/data.rs b/core/lib/src/data/data.rs @@ -31,8 +31,7 @@ const PEEK_BYTES: usize = 512; /// route parameter as follows: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// # type DataGuard = ::rocket::data::Data; /// #[post("/submit", data = "<var>")] diff --git a/core/lib/src/data/from_data.rs b/core/lib/src/data/from_data.rs @@ -130,8 +130,7 @@ pub type Transformed<'a, T> = /// if the guard returns successfully. /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// # type DataGuard = ::rocket::data::Data; /// #[post("/submit", data = "<var>")] @@ -177,9 +176,8 @@ pub type Transformed<'a, T> = /// `String` (an `&str`). /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # #[derive(Debug)] /// # struct Name<'a> { first: &'a str, last: &'a str, } /// use std::io::{self, Read}; @@ -424,8 +422,7 @@ impl<'f> FromData<'f> for Data { /// that you can retrieve it directly from a client's request body: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// # type Person = ::rocket::data::Data; /// #[post("/person", data = "<person>")] @@ -437,11 +434,8 @@ impl<'f> FromData<'f> for Data { /// A `FromDataSimple` implementation allowing this looks like: /// /// ```rust -/// # #![allow(unused_attributes)] -/// # #![allow(unused_variables)] -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # /// # #[derive(Debug)] /// # struct Person { name: String, age: u16 } diff --git a/core/lib/src/handler.rs b/core/lib/src/handler.rs @@ -86,8 +86,7 @@ pub type Outcome<'r> = outcome::Outcome<Response<'r>, Status, Data>; /// managed state and a static route, as follows: /// /// ```rust -/// # #![feature(plugin, decl_macro, proc_macro_non_items)] -/// # #![plugin(rocket_codegen)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// # /// # #[derive(Copy, Clone)] diff --git a/core/lib/src/lib.rs b/core/lib/src/lib.rs @@ -57,19 +57,20 @@ //! Then, add the following to the top of your `main.rs` file: //! //! ```rust -//! #![feature(plugin, decl_macro)] -//! # #![allow(unused_attributes)] -//! #![plugin(rocket_codegen)] +//! #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] //! -//! extern crate rocket; +//! #[macro_use] extern crate rocket; +//! # +//! # #[get("/")] +//! # fn hello() { } +//! # fn main() { rocket::ignite().mount("/", routes![hello]); } //! ``` //! //! See the [guide](https://rocket.rs/guide) for more information on how to //! write Rocket applications. Here's a simple example to get you started: //! //! ```rust -//! #![feature(plugin, decl_macro, proc_macro_non_items)] -//! #![plugin(rocket_codegen)] +//! #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] //! //! #[macro_use] extern crate rocket; //! diff --git a/core/lib/src/local/mod.rs b/core/lib/src/local/mod.rs @@ -67,10 +67,9 @@ //! consider the following complete "Hello, world!" application, with testing. //! //! ```rust -//! #![feature(plugin, decl_macro)] -//! #![plugin(rocket_codegen)] +//! #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] //! -//! extern crate rocket; +//! #[macro_use] extern crate rocket; //! //! #[get("/")] //! fn hello() -> &'static str { diff --git a/core/lib/src/logger.rs b/core/lib/src/logger.rs @@ -209,13 +209,15 @@ pub fn init(level: LoggingLevel) -> bool { try_init(level, true) } -// This method exists as a shim for the log macros that need to be called from -// an end user's code. It was added as part of the work to support database -// connection pools via procedural macros. -#[doc(hidden)] -pub fn log_err(indented: bool, msg: &str) { - match indented { - true => error_!("{}", msg), - false => error!("{}", msg), - } +// Expose logging macros as (hidden) funcions for use by core/contrib codegen. +macro_rules! external_log_function { + ($fn_name:ident: $macro_name:ident) => ( + #[doc(hidden)] #[inline(always)] + pub fn $fn_name(msg: &str) { $macro_name!("{}", msg); } + ) } + +external_log_function!(log_error: error); +external_log_function!(log_error_: error_); +external_log_function!(log_warn: warn); +external_log_function!(log_warn_: warn_); diff --git a/core/lib/src/request/form/form.rs b/core/lib/src/request/form/form.rs @@ -3,7 +3,7 @@ use std::ops::Deref; use outcome::Outcome::*; use request::{Request, form::{FromForm, FormItems, FormDataError}}; use data::{Outcome, Transform, Transformed, Data, FromData}; -use http::Status; +use http::{Status, uri::FromUriParam}; /// A data guard for parsing [`FromForm`] types strictly. /// @@ -42,9 +42,8 @@ use http::Status; /// can access fields of `T` transparently through a `Form<T>`: /// /// ```rust -/// # #![feature(plugin, decl_macro)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #![allow(deprecated, unused_attributes)] -/// # #![plugin(rocket_codegen)] /// # #[macro_use] extern crate rocket; /// use rocket::request::Form; /// use rocket::http::RawStr; @@ -72,9 +71,8 @@ use http::Status; /// A handler that handles a form of this type can similarly by written: /// /// ```rust -/// # #![feature(plugin, decl_macro)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #![allow(deprecated, unused_attributes)] -/// # #![plugin(rocket_codegen)] /// # #[macro_use] extern crate rocket; /// # use rocket::request::Form; /// # #[derive(FromForm)] @@ -119,7 +117,7 @@ use http::Status; /// forms = 524288 /// ``` #[derive(Debug)] -pub struct Form<T>(T); +pub struct Form<T>(crate T); impl<T> Form<T> { /// Consumes `self` and returns the parsed value. @@ -127,8 +125,7 @@ impl<T> Form<T> { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro)] - /// # #![plugin(rocket_codegen)] + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// use rocket::request::Form; /// @@ -227,3 +224,12 @@ impl<'f, T: FromForm<'f>> FromData<'f> for Form<T> { <Form<T>>::from_data(o.borrowed()?, true).map(Form) } } + +impl<'f, A, T: FromUriParam<A> + FromForm<'f>> FromUriParam<A> for Form<T> { + type Target = T::Target; + + #[inline(always)] + fn from_uri_param(param: A) -> Self::Target { + T::from_uri_param(param) + } +} diff --git a/core/lib/src/request/form/form_items.rs b/core/lib/src/request/form/form_items.rs @@ -4,24 +4,46 @@ use http::RawStr; /// Iterator over the key/value pairs of a given HTTP form string. /// -/// **Note:** The returned key/value pairs are _not_ URL decoded. To URL decode -/// the raw strings, use the -/// [`url_decode`](/rocket/http/struct.RawStr.html#method.url_decode) method: -/// /// ```rust /// use rocket::request::{FormItems, FromFormValue}; /// +/// // Using the `key_value_decoded` method of `FormItem`. /// let form_string = "greeting=Hello%2C+Mark%21&username=jake%2Fother"; -/// for (key, value) in FormItems::from(form_string) { -/// let decoded_value = value.url_decode(); -/// match key.as_str() { -/// "greeting" => assert_eq!(decoded_value, Ok("Hello, Mark!".into())), -/// "username" => assert_eq!(decoded_value, Ok("jake/other".into())), +/// for (key, value) in FormItems::from(form_string).map(|i| i.key_value_decoded()) { +/// match &*key { +/// "greeting" => assert_eq!(value, "Hello, Mark!".to_string()), +/// "username" => assert_eq!(value, "jake/other".to_string()), +/// _ => unreachable!() +/// } +/// } +/// +/// // Accessing the fields of `FormItem` directly, including `raw`. +/// for item in FormItems::from(form_string) { +/// match item.key.as_str() { +/// "greeting" => { +/// assert_eq!(item.raw, "greeting=Hello%2C+Mark%21"); +/// assert_eq!(item.value, "Hello%2C+Mark%21"); +/// assert_eq!(item.value.url_decode(), Ok("Hello, Mark!".into())); +/// } +/// "username" => { +/// assert_eq!(item.raw, "username=jake%2Fother"); +/// assert_eq!(item.value, "jake%2Fother"); +/// assert_eq!(item.value.url_decode(), Ok("jake/other".into())); +/// } /// _ => unreachable!() /// } /// } /// ``` /// +/// # Form Items via. `FormItem` +/// +/// This iterator returns values of the type [`FormItem`]. To access the +/// associated key/value pairs of the form item, either directly access them via +/// the [`key`](FormItem.key) and [`value`](FormItem.value) fields, use the +/// [`FormItem::key_value()`] method to get a tuple of the _raw_ `(key, value)`, +/// or use the [`FormItems::key_value_decoded()`] method to get a tuple of the +/// decoded (`key`, `value`). +/// /// # Completion /// /// The iterator keeps track of whether the form string was parsed to completion @@ -52,7 +74,7 @@ use http::RawStr; /// /// // prints "greeting = hello", "username = jake", and "done = " /// let form_string = "greeting=hello&username=jake&done"; -/// for (key, value) in FormItems::from(form_string) { +/// for (key, value) in FormItems::from(form_string).map(|item| item.key_value()) { /// println!("{} = {}", key, value); /// } /// ``` @@ -66,23 +88,66 @@ use http::RawStr; /// let mut items = FormItems::from(form_string); /// /// let next = items.next().unwrap(); -/// assert_eq!(next.0, "greeting"); -/// assert_eq!(next.1, "hello"); +/// assert_eq!(next.key, "greeting"); +/// assert_eq!(next.value, "hello"); /// /// let next = items.next().unwrap(); -/// assert_eq!(next.0, "username"); -/// assert_eq!(next.1, "jake"); +/// assert_eq!(next.key, "username"); +/// assert_eq!(next.value, "jake"); /// /// let next = items.next().unwrap(); -/// assert_eq!(next.0, "done"); -/// assert_eq!(next.1, ""); +/// assert_eq!(next.key, "done"); +/// assert_eq!(next.value, ""); /// /// assert_eq!(items.next(), None); /// assert!(items.completed()); /// ``` -pub struct FormItems<'f> { - string: &'f RawStr, - next_index: usize +#[derive(Debug)] +pub enum FormItems<'f> { + Raw { + string: &'f RawStr, + next_index: usize + }, + Cooked { + items: &'f [FormItem<'f>], + next_index: usize + } +} + +/// A form items returned by the [`FormItems`] iterator. +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +pub struct FormItem<'f> { + /// The full, nonempty string for the item, not including delimiters. + pub raw: &'f RawStr, + /// The key for the item, which may be empty if `value` is nonempty. + /// + /// **Note:** The key is _not_ URL decoded. To URL decode the raw strings, + /// use the [`RawStr::url_decode()`] method or access key-value pairs with + /// [`FromItem::key_value_decoded()`]. + pub key: &'f RawStr, + /// The value for the item, which may be empty if `key` is nonempty. + /// + /// **Note:** The value is _not_ URL decoded. To URL decode the raw strings, + /// use the [`RawStr::url_decode()`] method or access key-value pairs with + /// [`FromItem::key_value_decoded()`]. + pub value: &'f RawStr +} + +impl<'f> FormItem<'f> { + #[inline(always)] + pub fn key_value(&self) -> (&'f RawStr, &'f RawStr) { + (self.key, self.value) + } + + #[inline(always)] + pub fn key_value_decoded(&self) -> (String, String) { + (self.key.url_decode_lossy(), self.value.url_decode_lossy()) + } + + #[inline(always)] + pub fn explode(&self) -> (&'f RawStr, &'f RawStr, &'f RawStr) { + (self.raw, self.key, self.value) + } } impl<'f> FormItems<'f> { @@ -117,7 +182,10 @@ impl<'f> FormItems<'f> { /// ``` #[inline] pub fn completed(&self) -> bool { - self.next_index >= self.string.len() + match self { + FormItems::Raw { string, next_index } => *next_index >= string.len(), + FormItems::Cooked { items, next_index } => *next_index >= items.len(), + } } /// Parses all remaining key/value pairs and returns `true` if parsing ran @@ -161,156 +229,195 @@ impl<'f> FormItems<'f> { #[inline] #[doc(hidden)] pub fn mark_complete(&mut self) { - self.next_index = self.string.len() - } - - /// Retrieves the original string being parsed by this iterator. The string - /// returned by this method does not change, regardless of the status of the - /// iterator. - /// - /// # Example - /// - /// ```rust - /// use rocket::request::FormItems; - /// - /// let form_string = "a=b&c=d"; - /// let mut items = FormItems::from(form_string); - /// assert_eq!(items.inner_str(), form_string); - /// - /// assert!(items.next().is_some()); - /// assert_eq!(items.inner_str(), form_string); - /// - /// assert!(items.next().is_some()); - /// assert_eq!(items.inner_str(), form_string); - /// - /// assert!(items.next().is_none()); - /// assert_eq!(items.inner_str(), form_string); - /// ``` - #[inline] - pub fn inner_str(&self) -> &'f RawStr { - self.string + match self { + FormItems::Raw { string, ref mut next_index } => *next_index = string.len(), + FormItems::Cooked { items, ref mut next_index } => *next_index = items.len(), + } } } impl<'f> From<&'f RawStr> for FormItems<'f> { - /// Returns an iterator over the key/value pairs in the - /// `x-www-form-urlencoded` form `string`. #[inline(always)] fn from(string: &'f RawStr) -> FormItems<'f> { - FormItems { string, next_index: 0 } + FormItems::Raw { string, next_index: 0 } } } impl<'f> From<&'f str> for FormItems<'f> { - /// Returns an iterator over the key/value pairs in the - /// `x-www-form-urlencoded` form `string`. #[inline(always)] fn from(string: &'f str) -> FormItems<'f> { FormItems::from(RawStr::from_str(string)) } } +impl<'f> From<&'f [FormItem<'f>]> for FormItems<'f> { + #[inline(always)] + fn from(items: &'f [FormItem<'f>]) -> FormItems<'f> { + FormItems::Cooked { items, next_index: 0 } + } +} + +fn raw<'f>(string: &mut &'f RawStr, index: &mut usize) -> Option<FormItem<'f>> { + loop { + let start = *index; + let s = &string[start..]; + if s.is_empty() { + return None; + } + + let (key, rest, key_consumed) = match memchr2(b'=', b'&', s.as_bytes()) { + Some(i) if s.as_bytes()[i] == b'=' => (&s[..i], &s[(i + 1)..], i + 1), + Some(i) => (&s[..i], &s[i..], i), + None => (s, &s[s.len()..], s.len()) + }; + + let (value, val_consumed) = match memchr2(b'=', b'&', rest.as_bytes()) { + Some(i) if rest.as_bytes()[i] == b'=' => return None, + Some(i) => (&rest[..i], i + 1), + None => (rest, rest.len()) + }; + + *index += key_consumed + val_consumed; + let raw = &string[start..(start + key_consumed + value.len())]; + match (key.is_empty(), value.is_empty()) { + (true, true) => continue, + _ => return Some(FormItem { + raw: raw.into(), + key: key.into(), + value: value.into() + }) + } + } +} + impl<'f> Iterator for FormItems<'f> { - type Item = (&'f RawStr, &'f RawStr); + type Item = FormItem<'f>; fn next(&mut self) -> Option<Self::Item> { - loop { - let s = &self.string[self.next_index..]; - if s.is_empty() { - return None; + match self { + FormItems::Raw { ref mut string, ref mut next_index } => { + raw(string, next_index) } - - let (key, rest, key_consumed) = match memchr2(b'=', b'&', s.as_bytes()) { - Some(i) if s.as_bytes()[i] == b'=' => (&s[..i], &s[(i + 1)..], i + 1), - Some(i) => (&s[..i], &s[i..], i), - None => (s, &s[s.len()..], s.len()) - }; - - let (value, val_consumed) = match memchr2(b'=', b'&', rest.as_bytes()) { - Some(i) if rest.as_bytes()[i] == b'=' => return None, - Some(i) => (&rest[..i], i + 1), - None => (rest, rest.len()) - }; - - self.next_index += key_consumed + val_consumed; - match (key.is_empty(), value.is_empty()) { - (true, true) => continue, - _ => return Some((key.into(), value.into())) + FormItems::Cooked { items, ref mut next_index } => { + if *next_index < items.len() { + let item = items[*next_index]; + *next_index += 1; + Some(item) + } else { + None + } } } } } -#[cfg(test)] -mod test { - use super::FormItems; +// #[cfg(test)] +// mod test { +// use super::FormItems; - macro_rules! check_form { - (@bad $string:expr) => (check_form($string, None)); - ($string:expr, $expected:expr) => (check_form($string, Some($expected))); - } +// impl<'f> From<&'f [(&'f str, &'f str, &'f str)]> for FormItems<'f> { +// #[inline(always)] +// fn from(triples: &'f [(&'f str, &'f str, &'f str)]) -> FormItems<'f> { +// // Safe because RawStr(str) is repr(transparent). +// let triples = unsafe { ::std::mem::transmute(triples) }; +// FormItems::Cooked { triples, next_index: 0 } +// } +// } - fn check_form(string: &str, expected: Option<&[(&str, &str)]>) { - let mut items = FormItems::from(string); - let results: Vec<_> = items.by_ref().collect(); - if let Some(expected) = expected { - assert_eq!(expected.len(), results.len(), - "expected {:?}, got {:?} for {:?}", expected, results, string); +// macro_rules! check_form { +// (@bad $string:expr) => (check_form($string, None)); +// ($string:expr, $expected:expr) => (check_form(&$string[..], Some($expected))); +// } - for i in 0..results.len() { - let (expected_key, actual_key) = (expected[i].0, results[i].0); - let (expected_val, actual_val) = (expected[i].1, results[i].1); +// fn check_form<'a, T>(items: T, expected: Option<&[(&str, &str, &str)]>) +// where T: Into<FormItems<'a>> + ::std::fmt::Debug +// { +// let string = format!("{:?}", items); +// let mut items = items.into(); +// let results: Vec<_> = items.by_ref().map(|item| item.explode()).collect(); +// if let Some(expected) = expected { +// assert_eq!(expected.len(), results.len(), +// "expected {:?}, got {:?} for {:?}", expected, results, string); - assert!(actual_key == expected_key, - "key [{}] mismatch for {}: expected {}, got {}", - i, string, expected_key, actual_key); +// for i in 0..results.len() { +// let (expected_raw, expected_key, expected_val) = expected[i]; +// let (actual_raw, actual_key, actual_val) = results[i]; - assert!(actual_val == expected_val, - "val [{}] mismatch for {}: expected {}, got {}", - i, string, expected_val, actual_val); - } - } else { - assert!(!items.exhaust(), "{} unexpectedly parsed successfully", string); - } - } +// assert!(actual_raw == expected_raw, +// "raw [{}] mismatch for {}: expected {}, got {}", +// i, string, expected_raw, actual_raw); - #[test] - fn test_form_string() { - check_form!("username=user&password=pass", - &[("username", "user"), ("password", "pass")]); - - check_form!("user=user&user=pass", &[("user", "user"), ("user", "pass")]); - check_form!("user=&password=pass", &[("user", ""), ("password", "pass")]); - check_form!("user&password=pass", &[("user", ""), ("password", "pass")]); - check_form!("foo&bar", &[("foo", ""), ("bar", "")]); - - check_form!("a=b", &[("a", "b")]); - check_form!("value=Hello+World", &[("value", "Hello+World")]); - - check_form!("user=", &[("user", "")]); - check_form!("user=&", &[("user", "")]); - check_form!("a=b&a=", &[("a", "b"), ("a", "")]); - check_form!("user=&password", &[("user", ""), ("password", "")]); - check_form!("a=b&a", &[("a", "b"), ("a", "")]); - - check_form!("user=x&&", &[("user", "x")]); - check_form!("user=x&&&&pass=word", &[("user", "x"), ("pass", "word")]); - check_form!("user=x&&&&pass=word&&&x=z&d&&&e", - &[("user", "x"), ("pass", "word"), ("x", "z"), ("d", ""), ("e", "")]); - - check_form!("=&a=b&&=", &[("a", "b")]); - check_form!("=b", &[("", "b")]); - check_form!("=b&=c", &[("", "b"), ("", "c")]); - - check_form!("=", &[]); - check_form!("&=&", &[]); - check_form!("&", &[]); - check_form!("=&=", &[]); - - check_form!(@bad "=b&=="); - check_form!(@bad "=="); - check_form!(@bad "=k="); - check_form!(@bad "=abc="); - check_form!(@bad "=abc=cd"); - } -} +// assert!(actual_key == expected_key, +// "key [{}] mismatch for {}: expected {}, got {}", +// i, string, expected_key, actual_key); + +// assert!(actual_val == expected_val, +// "val [{}] mismatch for {}: expected {}, got {}", +// i, string, expected_val, actual_val); +// } +// } else { +// assert!(!items.exhaust(), "{} unexpectedly parsed successfully", string); +// } +// } + +// #[test] +// fn test_cooked_items() { +// check_form!( +// &[("username=user", "username", "user"), ("password=pass", "password", "pass")], +// &[("username=user", "username", "user"), ("password=pass", "password", "pass")] +// ); + +// let empty: &[(&str, &str, &str)] = &[]; +// check_form!(empty, &[]); + +// check_form!(&[("a=b", "a", "b")], &[("a=b", "a", "b")]); + +// check_form!( +// &[("user=x", "user", "x"), ("pass=word", "pass", "word"), +// ("x=z", "x", "z"), ("d=", "d", ""), ("e=", "e", "")], + +// &[("user=x", "user", "x"), ("pass=word", "pass", "word"), +// ("x=z", "x", "z"), ("d=", "d", ""), ("e=", "e", "")] +// ); +// } + +// // #[test] +// // fn test_form_string() { +// // check_form!("username=user&password=pass", +// // &[("username", "user"), ("password", "pass")]); + +// // check_form!("user=user&user=pass", &[("user", "user"), ("user", "pass")]); +// // check_form!("user=&password=pass", &[("user", ""), ("password", "pass")]); +// // check_form!("user&password=pass", &[("user", ""), ("password", "pass")]); +// // check_form!("foo&bar", &[("foo", ""), ("bar", "")]); + +// // check_form!("a=b", &[("a", "b")]); +// // check_form!("value=Hello+World", &[("value", "Hello+World")]); + +// // check_form!("user=", &[("user", "")]); +// // check_form!("user=&", &[("user", "")]); +// // check_form!("a=b&a=", &[("a", "b"), ("a", "")]); +// // check_form!("user=&password", &[("user", ""), ("password", "")]); +// // check_form!("a=b&a", &[("a", "b"), ("a", "")]); + +// // check_form!("user=x&&", &[("user", "x")]); +// // check_form!("user=x&&&&pass=word", &[("user", "x"), ("pass", "word")]); +// // check_form!("user=x&&&&pass=word&&&x=z&d&&&e", +// // &[("user", "x"), ("pass", "word"), ("x", "z"), ("d", ""), ("e", "")]); + +// // check_form!("=&a=b&&=", &[("a", "b")]); +// // check_form!("=b", &[("", "b")]); +// // check_form!("=b&=c", &[("", "b"), ("", "c")]); + +// // check_form!("=", &[]); +// // check_form!("&=&", &[]); +// // check_form!("&", &[]); +// // check_form!("=&=", &[]); + +// // check_form!(@bad "=b&=="); +// // check_form!(@bad "=="); +// // check_form!(@bad "=k="); +// // check_form!(@bad "=abc="); +// // check_form!(@bad "=abc=cd"); +// // } +// } diff --git a/core/lib/src/request/form/from_form.rs b/core/lib/src/request/form/from_form.rs @@ -14,8 +14,7 @@ use request::FormItems; /// validation. /// /// ```rust -/// #![feature(plugin, decl_macro)] -/// #![plugin(rocket_codegen)] +/// #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #![allow(deprecated, dead_code, unused_attributes)] /// /// #[macro_use] extern crate rocket; @@ -34,9 +33,8 @@ use request::FormItems; /// data via the `data` parameter and `Form` type. /// /// ```rust -/// # #![feature(plugin, decl_macro)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #![allow(deprecated, dead_code, unused_attributes)] -/// # #![plugin(rocket_codegen)] /// # #[macro_use] extern crate rocket; /// # use rocket::request::Form; /// # #[derive(FromForm)] @@ -81,10 +79,10 @@ use request::FormItems; /// fn from_form(items: &mut FormItems<'f>, strict: bool) -> Result<Item, ()> { /// let mut field = None; /// -/// for (key, value) in items { -/// match key.as_str() { +/// for item in items { +/// match item.key.as_str() { /// "balloon" | "space" if field.is_none() => { -/// let decoded = value.url_decode().map_err(|_| ())?; +/// let decoded = item.value.url_decode().map_err(|_| ())?; /// field = Some(decoded); /// } /// _ if strict => return Err(()), @@ -115,16 +113,6 @@ pub trait FromForm<'f>: Sized { fn from_form(it: &mut FormItems<'f>, strict: bool) -> Result<Self, Self::Error>; } -/// This implementation should only be used during debugging! -impl<'f> FromForm<'f> for &'f str { - type Error = !; - - fn from_form(items: &mut FormItems<'f>, _: bool) -> Result<Self, !> { - items.mark_complete(); - Ok(items.inner_str()) - } -} - impl<'f, T: FromForm<'f>> FromForm<'f> for Option<T> { type Error = !; diff --git a/core/lib/src/request/form/lenient.rs b/core/lib/src/request/form/lenient.rs @@ -2,6 +2,7 @@ use std::ops::Deref; use request::{Request, form::{Form, FormDataError, FromForm}}; use data::{Data, Transform, Transformed, FromData, Outcome}; +use http::uri::FromUriParam; /// A data gaurd for parsing [`FromForm`] types leniently. /// @@ -30,9 +31,8 @@ use data::{Data, Transform, Transformed, FromData, Outcome}; /// handler: /// /// ```rust -/// # #![feature(plugin, decl_macro)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #![allow(deprecated, unused_attributes)] -/// # #![plugin(rocket_codegen)] /// # #[macro_use] extern crate rocket; /// use rocket::request::LenientForm; /// @@ -60,7 +60,7 @@ use data::{Data, Transform, Transformed, FromData, Outcome}; /// forms = 524288 /// ``` #[derive(Debug)] -pub struct LenientForm<T>(T); +pub struct LenientForm<T>(crate T); impl<T> LenientForm<T> { /// Consumes `self` and returns the parsed value. @@ -68,8 +68,7 @@ impl<T> LenientForm<T> { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro)] - /// # #![plugin(rocket_codegen)] + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// use rocket::request::LenientForm; /// @@ -110,3 +109,12 @@ impl<'f, T: FromForm<'f>> FromData<'f> for LenientForm<T> { <Form<T>>::from_data(o.borrowed()?, false).map(LenientForm) } } + +impl<'f, A, T: FromUriParam<A> + FromForm<'f>> FromUriParam<A> for LenientForm<T> { + type Target = T::Target; + + #[inline(always)] + fn from_uri_param(param: A) -> Self::Target { + T::from_uri_param(param) + } +} diff --git a/core/lib/src/request/form/mod.rs b/core/lib/src/request/form/mod.rs @@ -7,7 +7,7 @@ mod lenient; mod error; mod form; -pub use self::form_items::FormItems; +pub use self::form_items::{FormItems, FormItem}; pub use self::from_form::FromForm; pub use self::from_form_value::FromFormValue; pub use self::form::Form; diff --git a/core/lib/src/request/from_request.rs b/core/lib/src/request/from_request.rs @@ -166,9 +166,8 @@ impl<S, E> IntoOutcome<S, (Status, E), ()> for Result<S, E> { /// `sensitive` handler. /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # /// use rocket::Outcome; /// use rocket::http::Status; @@ -222,9 +221,8 @@ impl<S, E> IntoOutcome<S, (Status, E), ()> for Result<S, E> { /// routes (`admin_dashboard` and `user_dashboard`): /// /// ```rust -/// # #![feature(plugin, decl_macro, never_type)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # /// # use rocket::outcome::{IntoOutcome, Outcome}; /// # use rocket::request::{self, FromRequest, Request}; @@ -285,9 +283,9 @@ impl<S, E> IntoOutcome<S, (Status, E), ()> for Result<S, E> { /// used, as illustrated below: /// /// ```rust -/// # #![feature(plugin, decl_macro, never_type)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #![feature(never_type)] +/// # #[macro_use] extern crate rocket; /// # /// # use rocket::outcome::{IntoOutcome, Outcome}; /// # use rocket::request::{self, FromRequest, Request}; diff --git a/core/lib/src/request/mod.rs b/core/lib/src/request/mod.rs @@ -5,6 +5,7 @@ mod param; mod form; mod from_request; mod state; +mod query; #[cfg(test)] mod tests; @@ -12,9 +13,10 @@ mod tests; pub use self::request::Request; pub use self::from_request::{FromRequest, Outcome}; pub use self::param::{FromParam, FromSegments}; -pub use self::form::{Form, LenientForm, FormItems}; +pub use self::form::{Form, LenientForm, FormItems, FormItem}; pub use self::form::{FromForm, FormError, FromFormValue, FormParseError, FormDataError}; pub use self::state::State; +pub use self::query::{Query, FromQuery}; #[doc(inline)] pub use response::flash::FlashMessage; diff --git a/core/lib/src/request/param.rs b/core/lib/src/request/param.rs @@ -19,9 +19,8 @@ use http::{RawStr, uri::{Segments, SegmentError}}; /// handler for the dynamic `"/<id>"` path: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// #[get("/<id>")] /// fn hello(id: usize) -> String { /// # let _id = id; @@ -55,9 +54,8 @@ use http::{RawStr, uri::{Segments, SegmentError}}; /// parameter as follows: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # use rocket::http::RawStr; /// #[get("/<id>")] /// fn hello(id: Result<usize, &RawStr>) -> String { @@ -168,9 +166,8 @@ use http::{RawStr, uri::{Segments, SegmentError}}; /// dynamic path segment: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # use rocket::request::FromParam; /// # use rocket::http::RawStr; /// # #[allow(dead_code)] @@ -284,12 +281,14 @@ impl<'a, T: FromParam<'a>> FromParam<'a> for Option<T> { /// /// # Provided Implementations /// -/// Rocket implements `FromParam` for `PathBuf`. The `PathBuf` implementation -/// constructs a path from the segments iterator. Each segment is -/// percent-decoded. If a segment equals ".." before or after decoding, the -/// previous segment (if any) is omitted. For security purposes, any other -/// segments that begin with "*" or "." are ignored. If a percent-decoded -/// segment results in invalid UTF8, an `Err` is returned with the `Utf8Error`. +/// **`PathBuf`** +/// +/// The `PathBuf` implementation constructs a path from the segments iterator. +/// Each segment is percent-decoded. If a segment equals ".." before or after +/// decoding, the previous segment (if any) is omitted. For security purposes, +/// any other segments that begin with "*" or "." are ignored. If a +/// percent-decoded segment results in invalid UTF8, an `Err` is returned with +/// the `Utf8Error`. pub trait FromSegments<'a>: Sized { /// The associated error to be returned when parsing fails. type Error: Debug; diff --git a/core/lib/src/request/query.rs b/core/lib/src/request/query.rs @@ -0,0 +1,57 @@ +use std::{slice::Iter, iter::Cloned}; + +use request::{FormItems, FormItem, Form, LenientForm, FromForm}; + +pub struct Query<'q>(pub &'q [FormItem<'q>]); + +impl<'q> IntoIterator for Query<'q> { + type Item = FormItem<'q>; + type IntoIter = Cloned<Iter<'q, FormItem<'q>>>; + + #[inline(always)] + fn into_iter(self) -> Self::IntoIter { + self.0.iter().cloned() + } +} + +pub trait FromQuery<'q>: Sized { + type Error; + + fn from_query(q: Query<'q>) -> Result<Self, Self::Error>; +} + +impl<'q, T: FromForm<'q>> FromQuery<'q> for Form<T> { + type Error = T::Error; + + #[inline] + fn from_query(q: Query<'q>) -> Result<Self, Self::Error> { + T::from_form(&mut FormItems::from(q.0), true).map(Form) + } +} + +impl<'q, T: FromForm<'q>> FromQuery<'q> for LenientForm<T> { + type Error = <T as FromForm<'q>>::Error; + + #[inline] + fn from_query(q: Query<'q>) -> Result<Self, Self::Error> { + T::from_form(&mut FormItems::from(q.0), false).map(LenientForm) + } +} + +impl<'q, T: FromQuery<'q>> FromQuery<'q> for Option<T> { + type Error = !; + + #[inline] + fn from_query(q: Query<'q>) -> Result<Self, Self::Error> { + Ok(T::from_query(q).ok()) + } +} + +impl<'q, T: FromQuery<'q>> FromQuery<'q> for Result<T, T::Error> { + type Error = !; + + #[inline] + fn from_query(q: Query<'q>) -> Result<Self, Self::Error> { + Ok(T::from_query(q)) + } +} diff --git a/core/lib/src/request/request.rs b/core/lib/src/request/request.rs @@ -7,27 +7,18 @@ use std::str; use yansi::Paint; use state::{Container, Storage}; -use super::{FromParam, FromSegments, FromRequest, Outcome}; +use request::{FromParam, FromSegments, FromRequest, Outcome}; +use request::{FromFormValue, FormItems, FormItem}; use rocket::Rocket; use router::Route; use config::{Config, Limits}; use http::uri::{Origin, Segments}; use http::{Method, Header, HeaderMap, Cookies, CookieJar}; -use http::{RawStr, ContentType, Accept, MediaType}; +use http::{RawStr, ContentType, Accept, MediaType, Indexed, SmallVec}; use http::hyper; -#[derive(Clone)] -struct RequestState<'r> { - config: &'r Config, - managed: &'r Container, - params: RefCell<Vec<(usize, usize)>>, - route: Cell<Option<&'r Route>>, - cookies: RefCell<CookieJar>, - accept: Storage<Option<Accept>>, - content_type: Storage<Option<ContentType>>, - cache: Rc<Container>, -} +type Indices = (usize, usize); /// The type of an incoming web request. /// @@ -42,7 +33,27 @@ pub struct Request<'r> { uri: Origin<'r>, headers: HeaderMap<'r>, remote: Option<SocketAddr>, - state: RequestState<'r>, + crate state: RequestState<'r>, +} + +#[derive(Clone)] +crate struct RequestState<'r> { + crate config: &'r Config, + crate managed: &'r Container, + crate path_segments: SmallVec<[Indices; 12]>, + crate query_items: Option<SmallVec<[IndexedFormItem; 6]>>, + crate route: Cell<Option<&'r Route>>, + crate cookies: RefCell<CookieJar>, + crate accept: Storage<Option<Accept>>, + crate content_type: Storage<Option<ContentType>>, + crate cache: Rc<Container>, +} + +#[derive(Clone)] +crate struct IndexedFormItem { + raw: Indices, + key: Indices, + value: Indices } impl<'r> Request<'r> { @@ -53,31 +64,26 @@ impl<'r> Request<'r> { method: Method, uri: Origin<'s> ) -> Request<'r> { - Request { + let mut request = Request { method: Cell::new(method), uri: uri, headers: HeaderMap::new(), remote: None, state: RequestState { + path_segments: SmallVec::new(), + query_items: None, config: &rocket.config, managed: &rocket.state, route: Cell::new(None), - params: RefCell::new(Vec::new()), cookies: RefCell::new(CookieJar::new()), accept: Storage::new(), content_type: Storage::new(), cache: Rc::new(Container::new()), } - } - } + }; - // Only used by doc-tests! - #[doc(hidden)] - pub fn example<F: Fn(&mut Request)>(method: Method, uri: &str, f: F) { - let rocket = Rocket::custom(Config::development().unwrap()); - let uri = Origin::parse(uri).expect("invalid URI in example"); - let mut request = Request::new(&rocket, method, uri); - f(&mut request); + request.update_cached_uri_info(); + request } /// Retrieve the method from `self`. @@ -145,16 +151,14 @@ impl<'r> Request<'r> { /// # use rocket::http::Method; /// # Request::example(Method::Get, "/uri", |mut request| { /// let uri = Origin::parse("/hello/Sergio?type=greeting").unwrap(); - /// /// request.set_uri(uri); /// assert_eq!(request.uri().path(), "/hello/Sergio"); /// assert_eq!(request.uri().query(), Some("type=greeting")); /// # }); /// ``` - #[inline(always)] pub fn set_uri<'u: 'r>(&mut self, uri: Origin<'u>) { self.uri = uri; - *self.state.params.borrow_mut() = Vec::new(); + self.update_cached_uri_info(); } /// Returns the address of the remote connection that initiated this @@ -265,6 +269,40 @@ impl<'r> Request<'r> { self.real_ip().or_else(|| self.remote().map(|r| r.ip())) } + /// Returns a wrapped borrow to the cookies in `self`. + /// + /// [`Cookies`](/rocket/http/enum.Cookies.html) implements internal + /// mutability, so this method allows you to get _and_ add/remove cookies in + /// `self`. + /// + /// # Example + /// + /// Add a new cookie to a request's cookies: + /// + /// ```rust + /// # use rocket::Request; + /// # use rocket::http::Method; + /// use rocket::http::Cookie; + /// + /// # Request::example(Method::Get, "/uri", |mut request| { + /// request.cookies().add(Cookie::new("key", "val")); + /// request.cookies().add(Cookie::new("ans", format!("life: {}", 38 + 4))); + /// # }); + /// ``` + pub fn cookies(&self) -> Cookies { + // FIXME: Can we do better? This is disappointing. + match self.state.cookies.try_borrow_mut() { + Ok(jar) => Cookies::new(jar, self.state.config.secret_key()), + Err(_) => { + error_!("Multiple `Cookies` instances are active at once."); + info_!("An instance of `Cookies` must be dropped before another \ + can be retrieved."); + warn_!("The retrieved `Cookies` instance will be empty."); + Cookies::empty() + } + } + } + /// Returns a [`HeaderMap`](/rocket/http/struct.HeaderMap.html) of all of /// the headers in `self`. /// @@ -334,40 +372,6 @@ impl<'r> Request<'r> { self.headers.replace(header.into()); } - /// Returns a wrapped borrow to the cookies in `self`. - /// - /// [`Cookies`](/rocket/http/enum.Cookies.html) implements internal - /// mutability, so this method allows you to get _and_ add/remove cookies in - /// `self`. - /// - /// # Example - /// - /// Add a new cookie to a request's cookies: - /// - /// ```rust - /// # use rocket::Request; - /// # use rocket::http::Method; - /// use rocket::http::Cookie; - /// - /// # Request::example(Method::Get, "/uri", |mut request| { - /// request.cookies().add(Cookie::new("key", "val")); - /// request.cookies().add(Cookie::new("ans", format!("life: {}", 38 + 4))); - /// # }); - /// ``` - pub fn cookies(&self) -> Cookies { - // FIXME: Can we do better? This is disappointing. - match self.state.cookies.try_borrow_mut() { - Ok(jar) => Cookies::new(jar, self.state.config.secret_key()), - Err(_) => { - error_!("Multiple `Cookies` instances are active at once."); - info_!("An instance of `Cookies` must be dropped before another \ - can be retrieved."); - warn_!("The retrieved `Cookies` instance will be empty."); - Cookies::empty() - } - } - } - /// Returns the Content-Type header of `self`. If the header is not present, /// returns `None`. The Content-Type header is cached after the first call /// to this function. As a result, subsequent calls will always return the @@ -424,12 +428,11 @@ impl<'r> Request<'r> { }).as_ref() } - /// Returns the media type "format" of the request. + /// Returns the media type "format" of the request if it is present. /// /// The "format" of a request is either the Content-Type, if the request /// methods indicates support for a payload, or the preferred media type in - /// the Accept header otherwise. If the method indicates no payload and no - /// Accept header is specified, a media type of `Any` is returned. + /// the Accept header otherwise. /// /// The media type returned from this method is used to match against the /// `format` route attribute. @@ -452,16 +455,13 @@ impl<'r> Request<'r> { /// # }); /// ``` pub fn format(&self) -> Option<&MediaType> { - static ANY: MediaType = MediaType::Any; if self.method().supports_payload() { self.content_type().map(|ct| ct.media_type()) } else { // FIXME: Should we be using `accept_first` or `preferred`? Or // should we be checking neither and instead pass things through // where the client accepts the thing at all? - self.accept() - .map(|accept| accept.preferred().media_type()) - .or(Some(&ANY)) + self.accept().map(|accept| accept.preferred().media_type()) } } @@ -552,8 +552,8 @@ impl<'r> Request<'r> { }) } - /// Retrieves and parses into `T` the 0-indexed `n`th dynamic parameter from - /// the request. Returns `None` if `n` is greater than the number of params. + /// Retrieves and parses into `T` the 0-indexed `n`th segment from the + /// request. Returns `None` if `n` is greater than the number of segments. /// Returns `Some(Err(T::Error))` if the parameter type `T` failed to be /// parsed from the `n`th dynamic parameter. /// @@ -562,119 +562,219 @@ impl<'r> Request<'r> { /// /// # Example /// - /// Retrieve parameter `0`, which is expected to be a `String`, in a manual - /// route: - /// /// ```rust - /// use rocket::{Request, Data}; - /// use rocket::handler::Outcome; + /// # use rocket::{Request, http::Method}; + /// use rocket::http::{RawStr, uri::Origin}; /// - /// # #[allow(dead_code)] - /// fn name<'a>(req: &'a Request, _: Data) -> Outcome<'a> { - /// let string = req.get_param::<String>(0) - /// .and_then(|res| res.ok()) - /// .unwrap_or_else(|| "unnamed".into()); + /// # Request::example(Method::Get, "/", |req| { + /// fn string<'s>(req: &'s mut Request, uri: &'static str, n: usize) -> &'s RawStr { + /// req.set_uri(Origin::parse(uri).unwrap()); /// - /// Outcome::from(req, string) + /// req.get_param(n) + /// .and_then(|r| r.ok()) + /// .unwrap_or("unnamed".into()) /// } + /// + /// assert_eq!(string(req, "/", 0).as_str(), "unnamed"); + /// assert_eq!(string(req, "/a/b/this_one", 0).as_str(), "a"); + /// assert_eq!(string(req, "/a/b/this_one", 1).as_str(), "b"); + /// assert_eq!(string(req, "/a/b/this_one", 2).as_str(), "this_one"); + /// assert_eq!(string(req, "/a/b/this_one", 3).as_str(), "unnamed"); + /// assert_eq!(string(req, "/a/b/c/d/e/f/g/h", 7).as_str(), "h"); + /// # }); /// ``` + #[inline] pub fn get_param<'a, T>(&'a self, n: usize) -> Option<Result<T, T::Error>> where T: FromParam<'a> { - Some(T::from_param(self.get_param_str(n)?)) - } - - /// Get the `n`th path parameter as a string, if it exists. This is used by - /// codegen. - #[doc(hidden)] - pub fn get_param_str(&self, n: usize) -> Option<&RawStr> { - let params = self.state.params.borrow(); - if n >= params.len() { - debug!("{} is >= param count {}", n, params.len()); - return None; - } - - let (i, j) = params[n]; - let path = self.uri.path(); - if j > path.len() { - error!("Couldn't retrieve parameter: internal count incorrect."); - return None; - } - - Some(path[i..j].into()) + Some(T::from_param(self.raw_segment_str(n)?)) } /// Retrieves and parses into `T` all of the path segments in the request - /// URI beginning at the 0-indexed `n`th dynamic parameter. `T` must - /// implement [FromSegments](/rocket/request/trait.FromSegments.html), which - /// is used to parse the segments. + /// URI beginning and including the 0-indexed `n`th non-empty segment. `T` + /// must implement [FromSegments](/rocket/request/trait.FromSegments.html), + /// which is used to parse the segments. /// /// This method exists only to be used by manual routing. To retrieve /// segments from a request, use Rocket's code generation facilities. /// /// # Error /// - /// If there are less than `n` segments, returns `None`. If parsing the - /// segments failed, returns `Some(Err(T:Error))`. + /// If there are fewer than `n` non-empty segments, returns `None`. If + /// parsing the segments failed, returns `Some(Err(T:Error))`. /// /// # Example /// - /// If the request URI is `"/hello/there/i/am/here"`, and the matched route - /// path for this request is `"/hello/<name>/i/<segs..>"`, then - /// `request.get_segments::<T>(1)` will attempt to parse the segments - /// `"am/here"` as type `T`. + /// ```rust + /// # use rocket::{Request, http::Method}; + /// use std::path::PathBuf; + /// + /// use rocket::http::uri::Origin; + /// + /// # Request::example(Method::Get, "/", |req| { + /// fn path<'s>(req: &'s mut Request, uri: &'static str, n: usize) -> PathBuf { + /// req.set_uri(Origin::parse(uri).unwrap()); + /// + /// req.get_segments(n) + /// .and_then(|r| r.ok()) + /// .unwrap_or_else(|| "whoops".into()) + /// } + /// + /// assert_eq!(path(req, "/", 0), PathBuf::from("whoops")); + /// assert_eq!(path(req, "/a/", 0), PathBuf::from("a")); + /// assert_eq!(path(req, "/a/b/c", 0), PathBuf::from("a/b/c")); + /// assert_eq!(path(req, "/a/b/c", 1), PathBuf::from("b/c")); + /// assert_eq!(path(req, "/a/b/c", 2), PathBuf::from("c")); + /// assert_eq!(path(req, "/a/b/c", 6), PathBuf::from("whoops")); + /// # }); + /// ``` + #[inline] pub fn get_segments<'a, T>(&'a self, n: usize) -> Option<Result<T, T::Error>> where T: FromSegments<'a> { - Some(T::from_segments(self.get_raw_segments(n)?)) + Some(T::from_segments(self.raw_segments(n)?)) } - /// Get the segments beginning at the `n`th dynamic parameter, if they - /// exist. Used by codegen. - #[doc(hidden)] - pub fn get_raw_segments(&self, n: usize) -> Option<Segments> { - let params = self.state.params.borrow(); - if n >= params.len() { - debug!("{} is >= param (segments) count {}", n, params.len()); - return None; - } + /// Retrieves and parses into `T` the query value with key `key`. `T` must + /// implement [`FromFormValue`], which is used to parse the query's value. + /// Key matching is performed case-sensitively. If there are multiple pairs + /// with key `key`, the _last_ one is returned. + /// + /// This method exists only to be used by manual routing. To retrieve + /// query values from a request, use Rocket's code generation facilities. + /// + /// # Error + /// + /// If a query segment with key `key` isn't present, returns `None`. If + /// parsing the value fails, returns `Some(Err(T:Error))`. + /// + /// # Example + /// + /// ```rust + /// # use rocket::{Request, http::Method}; + /// use std::path::PathBuf; + /// use rocket::http::{RawStr, uri::Origin}; + /// + /// # Request::example(Method::Get, "/", |req| { + /// fn value<'s>(req: &'s mut Request, uri: &'static str, key: &str) -> &'s RawStr { + /// req.set_uri(Origin::parse(uri).unwrap()); + /// + /// req.get_query_value(key) + /// .and_then(|r| r.ok()) + /// .unwrap_or("n/a".into()) + /// } + /// + /// assert_eq!(value(req, "/?a=apple&z=zebra", "a").as_str(), "apple"); + /// assert_eq!(value(req, "/?a=apple&z=zebra", "z").as_str(), "zebra"); + /// assert_eq!(value(req, "/?a=apple&z=zebra", "A").as_str(), "n/a"); + /// assert_eq!(value(req, "/?a=apple&z=zebra&a=argon", "a").as_str(), "argon"); + /// assert_eq!(value(req, "/?a=1&a=2&a=3&b=4", "a").as_str(), "3"); + /// assert_eq!(value(req, "/?a=apple&z=zebra", "apple").as_str(), "n/a"); + /// # }); + /// ``` + /// # Example + /// + /// If the request query is `"/?apple=value_for_a&z=zebra"`, then + /// `request.get_query_value::<T>("z")` will attempt to parse `"zebra"` as + /// type `T`. + #[inline] + pub fn get_query_value<'a, T>(&'a self, key: &str) -> Option<Result<T, T::Error>> + where T: FromFormValue<'a> + { + self.raw_query_items()? + .rev() + .find(|item| item.key.as_str() == key) + .map(|item| T::from_form_value(item.value)) + } +} - let (i, j) = params[n]; - let path = self.uri.path(); - if j > path.len() { - error!("Couldn't retrieve segments: internal count incorrect."); - return None; - } +// All of these methods only exist for internal, including codegen, purposes. +// They _are not_ part of the stable API. +#[doc(hidden)] +impl<'r> Request<'r> { + // Only used by doc-tests! Needs to be `pub` because doc-test are external. + pub fn example<F: Fn(&mut Request)>(method: Method, uri: &str, f: F) { + let rocket = Rocket::custom(Config::development().unwrap()); + let uri = Origin::parse(uri).expect("invalid URI in example"); + let mut request = Request::new(&rocket, method, uri); + f(&mut request); + } + + // Updates the cached `path_segments` and `query_items` in `self.state`. + // MUST be called whenever a new URI is set or updated. + #[inline] + fn update_cached_uri_info(&mut self) { + let path_segments = Segments(self.uri.path()) + .map(|s| indices(s, self.uri.path())) + .collect(); - Some(Segments(&path[i..j])) + let query_items = self.uri.query() + .map(|query_str| FormItems::from(query_str) + .map(|item| IndexedFormItem::from(query_str, item)) + .collect() + ); + + self.state.path_segments = path_segments; + self.state.query_items = query_items; } - /// Set `self`'s parameters given that the route used to reach this request - /// was `route`. This should only be used internally by `Rocket` as improper - /// use may result in out of bounds indexing. - /// TODO: Figure out the mount path from here. + /// Get the `n`th path segment, 0-indexed, after the mount point for the + /// currently matched route, as a string, if it exists. Used by codegen. #[inline] - crate fn set_route(&self, route: &'r Route) { - self.state.route.set(Some(route)); - *self.state.params.borrow_mut() = route.get_param_indexes(self.uri()); + pub fn raw_segment_str(&self, n: usize) -> Option<&RawStr> { + self.routed_path_segment(n) + .map(|(i, j)| self.uri.path()[i..j].into()) } - /// Set the method of `self`, even when `self` is a shared reference. - #[inline(always)] - crate fn _set_method(&self, method: Method) { - self.method.set(method); + /// Get the segments beginning at the `n`th, 0-indexed, after the mount + /// point for the currently matched route, if they exist. Used by codegen. + #[inline] + pub fn raw_segments(&self, n: usize) -> Option<Segments> { + self.routed_path_segment(n) + .map(|(i, _)| Segments(&self.uri.path()[i..]) ) } - /// Replace all of the cookies in `self` with those in `jar`. + // Returns an iterator over the raw segments of the path URI. Does not take + // into account the current route. This is used during routing. #[inline] - crate fn set_cookies(&mut self, jar: CookieJar) { - self.state.cookies = RefCell::new(jar); + crate fn raw_path_segments(&self) -> impl Iterator<Item = &RawStr> { + let path = self.uri.path(); + self.state.path_segments.iter().cloned() + .map(move |(i, j)| path[i..j].into()) + } + + #[inline] + fn routed_path_segment(&self, n: usize) -> Option<(usize, usize)> { + let mount_segments = self.route() + .map(|r| r.base.segment_count()) + .unwrap_or(0); + + self.state.path_segments.get(mount_segments + n).map(|(i, j)| (*i, *j)) } - /// Get the managed state T, if it exists. For internal use only! + // Retrieves the pre-parsed query items. Used by matching and codegen. + #[inline] + pub fn raw_query_items( + &self + ) -> Option<impl Iterator<Item = FormItem> + DoubleEndedIterator + Clone> { + let query = self.uri.query()?; + self.state.query_items.as_ref().map(move |items| { + items.iter().map(move |item| item.convert(query)) + }) + } + + /// Set `self`'s parameters given that the route used to reach this request + /// was `route`. Use during routing when attempting a given route. #[inline(always)] - crate fn get_state<T: Send + Sync + 'static>(&self) -> Option<&'r T> { - self.state.managed.try_get() + crate fn set_route(&self, route: &'r Route) { + self.state.route.set(Some(route)); + } + + /// Set the method of `self`, even when `self` is a shared reference. Used + /// during routing to override methods for re-routing. + #[inline(always)] + crate fn _set_method(&self, method: Method) { + self.method.set(method); } /// Convert from Hyper types into a Rocket Request. @@ -720,7 +820,7 @@ impl<'r> Request<'r> { } } - request.set_cookies(cookie_jar); + request.state.cookies = RefCell::new(cookie_jar); } // Set the rest of the headers. @@ -766,3 +866,26 @@ impl<'r> fmt::Display for Request<'r> { Ok(()) } } + +impl IndexedFormItem { + #[inline(always)] + fn from(s: &str, i: FormItem) -> Self { + let (r, k, v) = (indices(i.raw, s), indices(i.key, s), indices(i.value, s)); + IndexedFormItem { raw: r, key: k, value: v } + } + + #[inline(always)] + fn convert<'s>(&self, source: &'s str) -> FormItem<'s> { + FormItem { + raw: source[self.raw.0..self.raw.1].into(), + key: source[self.key.0..self.key.1].into(), + value: source[self.value.0..self.value.1].into(), + } + } +} + +fn indices(needle: &str, haystack: &str) -> (usize, usize) { + Indexed::checked_from(needle, haystack) + .expect("segments inside of path/query") + .indices() +} diff --git a/core/lib/src/request/state.rs b/core/lib/src/request/state.rs @@ -21,8 +21,7 @@ use http::Status; /// following example does just this: /// /// ```rust -/// # #![feature(plugin, decl_macro, proc_macro_non_items)] -/// # #![plugin(rocket_codegen)] +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// use rocket::State; /// @@ -123,7 +122,7 @@ impl<'a, 'r, T: Send + Sync + 'static> FromRequest<'a, 'r> for State<'r, T> { #[inline(always)] fn from_request(req: &'a Request<'r>) -> request::Outcome<State<'r, T>, ()> { - match req.get_state::<T>() { + match req.state.managed.try_get::<T>() { Some(state) => Outcome::Success(State(state)), None => { error_!("Attempted to retrieve unmanaged state!"); diff --git a/core/lib/src/response/flash.rs b/core/lib/src/response/flash.rs @@ -47,11 +47,8 @@ const FLASH_COOKIE_NAME: &str = "_flash"; /// message on both the request and response sides. /// /// ```rust -/// # #![feature(plugin, decl_macro, proc_macro_non_items)] -/// # #![plugin(rocket_codegen)] -/// # +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; -/// # /// use rocket::response::{Flash, Redirect}; /// use rocket::request::FlashMessage; /// use rocket::http::RawStr; diff --git a/core/lib/src/response/responder.rs b/core/lib/src/response/responder.rs @@ -151,9 +151,8 @@ use request::Request; /// following `Responder` implementation accomplishes this: /// /// ```rust -/// # #![feature(plugin, decl_macro)] -/// # #![plugin(rocket_codegen)] -/// # extern crate rocket; +/// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] +/// # #[macro_use] extern crate rocket; /// # /// # #[derive(Debug)] /// # struct Person { name: String, age: u16 } diff --git a/core/lib/src/rocket.rs b/core/lib/src/rocket.rs @@ -185,8 +185,8 @@ impl Rocket { if is_form && req.method() == Method::Post && data_len >= min_len { if let Ok(form) = from_utf8(&data.peek()[..min(data_len, max_len)]) { let method: Option<Result<Method, _>> = FormItems::from(form) - .filter(|&(key, _)| key.as_str() == "_method") - .map(|(_, value)| value.parse()) + .filter(|item| item.key.as_str() == "_method") + .map(|item| item.value.parse()) .next(); if let Some(Ok(method)) = method { @@ -455,8 +455,7 @@ impl Rocket { /// dispatched to the `hi` route. /// /// ```rust - /// # #![feature(plugin, decl_macro, proc_macro_non_items)] - /// # #![plugin(rocket_codegen)] + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// # /// #[get("/world")] @@ -497,11 +496,6 @@ impl Rocket { Paint::purple("Mounting"), Paint::blue(base)); - if base.contains('<') || base.contains('>') { - error_!("Mount point '{}' contains dynamic paramters.", base); - panic!("Invalid mount point."); - } - let base_uri = Origin::parse(base) .unwrap_or_else(|e| { error_!("Invalid origin URI '{}' used as mount point.", base); @@ -513,22 +507,12 @@ impl Rocket { panic!("Invalid mount point."); } - if !base_uri.is_normalized() { - error_!("Mount point '{}' is not normalized.", base_uri); - info_!("Expected: '{}'.", base_uri.to_normalized()); - panic!("Invalid mount point."); - } - for mut route in routes.into() { - let complete_uri = format!("{}/{}", base_uri, route.uri); - let uri = Origin::parse_route(&complete_uri) - .unwrap_or_else(|e| { - error_!("Invalid route URI: {}", base); - panic!("Error: {}", e) - }); - - route.set_base(base_uri.clone()); - route.set_uri(uri.to_normalized()); + let path = route.uri.clone(); + if let Err(e) = route.set_uri(base_uri.clone(), path) { + error_!("{}", e); + panic!("Invalid route URI."); + } info_!("{}", route); self.router.add(route); @@ -542,11 +526,8 @@ impl Rocket { /// # Examples /// /// ```rust - /// #![feature(plugin, decl_macro, proc_macro_non_items)] - /// #![plugin(rocket_codegen)] - /// - /// #[macro_use] extern crate rocket; - /// + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + /// # #[macro_use] extern crate rocket; /// use rocket::Request; /// /// #[catch(500)] @@ -601,8 +582,7 @@ impl Rocket { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro, proc_macro_non_items)] - /// # #![plugin(rocket_codegen)] + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// use rocket::State; /// @@ -639,9 +619,8 @@ impl Rocket { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro)] - /// # #![plugin(rocket_codegen)] - /// # extern crate rocket; + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + /// # #[macro_use] extern crate rocket; /// use rocket::Rocket; /// use rocket::fairing::AdHoc; /// @@ -756,8 +735,7 @@ impl Rocket { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro, proc_macro_non_items)] - /// # #![plugin(rocket_codegen)] + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] /// # #[macro_use] extern crate rocket; /// use rocket::Rocket; /// use rocket::fairing::AdHoc; @@ -813,9 +791,8 @@ impl Rocket { /// # Example /// /// ```rust - /// # #![feature(plugin, decl_macro)] - /// # #![plugin(rocket_codegen)] - /// # extern crate rocket; + /// # #![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] + /// # #[macro_use] extern crate rocket; /// use rocket::Rocket; /// use rocket::fairing::AdHoc; /// diff --git a/core/lib/src/router/collider.rs b/core/lib/src/router/collider.rs @@ -1,7 +1,7 @@ use super::Route; -use http::uri::Origin; use http::MediaType; +use http::route::Kind; use request::Request; impl Route { @@ -15,22 +15,15 @@ impl Route { /// * If route specifies a format, it only gets requests for that format. /// * If route doesn't specify a format, it gets requests for any format. /// - /// Query collisions work like this: - /// - /// * If routes specify a query, they only gets request that have queries. - /// * If routes don't specify a query, requests with queries also match. - /// - /// As a result, as long as everything else collides, whether a route has a - /// query or not is irrelevant: it will collide. + /// Because query parsing is lenient, and dynamic query parameters can be + /// missing, queries do not impact whether two routes collide. pub fn collides_with(&self, other: &Route) -> bool { self.method == other.method && self.rank == other.rank - && paths_collide(&self.uri, &other.uri) + && paths_collide(self, other) && match (self.format.as_ref(), other.format.as_ref()) { (Some(a), Some(b)) => media_types_collide(a, b), - (Some(_), None) => true, - (None, Some(_)) => true, - (None, None) => true + _ => true } } @@ -43,21 +36,13 @@ impl Route { /// - If route doesn't specify format, it gets requests for any format. /// * All static components in the route's path match the corresponding /// components in the same position in the incoming request. - /// * If the route specifies a query, the request must have a query as - /// well. If the route doesn't specify a query, requests with and - /// without queries match. - /// - /// In the future, query handling will work as follows: - /// /// * All static components in the route's query string are also in the - /// request query string, though in any position, and there exists a - /// query parameter named exactly like each non-multi dynamic component - /// in the route's query that wasn't matched against a static component. + /// request query string, though in any position. /// - If no query in route, requests with/without queries match. pub fn matches(&self, req: &Request) -> bool { self.method == req.method() - && paths_collide(&self.uri, req.uri()) - && queries_collide(self, req) + && paths_match(self, req) + && queries_match(self, req) && match self.format { Some(ref a) => match req.format() { Some(ref b) => media_types_collide(a, b), @@ -68,49 +53,67 @@ impl Route { } } -#[inline(always)] -fn iters_match_until<A, B>(break_c: u8, mut a: A, mut b: B) -> bool - where A: Iterator<Item = u8>, B: Iterator<Item = u8> -{ - loop { - match (a.next(), b.next()) { - (None, Some(_)) => return false, - (Some(_), None) => return false, - (None, None) => return true, - (Some(c1), Some(c2)) if c1 == break_c || c2 == break_c => return true, - (Some(c1), Some(c2)) if c1 != c2 => return false, - (Some(_), Some(_)) => continue +fn paths_collide(route: &Route, other: &Route) -> bool { + let a_segments = &route.metadata.path_segments; + let b_segments = &other.metadata.path_segments; + for (seg_a, seg_b) in a_segments.iter().zip(b_segments.iter()) { + if seg_a.kind == Kind::Multi || seg_b.kind == Kind::Multi { + return true; + } + + if seg_a.kind == Kind::Static && seg_b.kind == Kind::Static { + if seg_a.string != seg_b.string { + return false; + } } } -} -fn segments_collide(first: &str, other: &str) -> bool { - let a_iter = first.as_bytes().iter().cloned(); - let b_iter = other.as_bytes().iter().cloned(); - iters_match_until(b'<', a_iter.clone(), b_iter.clone()) - && iters_match_until(b'>', a_iter.rev(), b_iter.rev()) + a_segments.len() == b_segments.len() } -fn paths_collide(first: &Origin, other: &Origin) -> bool { - for (seg_a, seg_b) in first.segments().zip(other.segments()) { - if seg_a.ends_with("..>") || seg_b.ends_with("..>") { - return true; - } +fn paths_match(route: &Route, request: &Request) -> bool { + let route_segments = &route.metadata.path_segments; + if route_segments.len() > request.state.path_segments.len() { + return false; + } - if !segments_collide(seg_a, seg_b) { - return false; + let request_segments = request.raw_path_segments(); + for (route_seg, req_seg) in route_segments.iter().zip(request_segments) { + match route_seg.kind { + Kind::Multi => return true, + Kind::Static if &*route_seg.string != req_seg.as_str() => return false, + _ => continue, } } - if first.segment_count() != other.segment_count() { - return false; + route_segments.len() == request.state.path_segments.len() +} + +fn queries_match(route: &Route, request: &Request) -> bool { + if route.metadata.fully_dynamic_query { + return true; } - true -} + let route_query_segments = match route.metadata.query_segments { + Some(ref segments) => segments, + None => return true + }; + + let req_query_segments = match request.raw_query_items() { + Some(iter) => iter.map(|item| item.raw.as_str()), + None => return route.metadata.fully_dynamic_query + }; + + for seg in route_query_segments.iter() { + if seg.kind == Kind::Static { + // it's okay; this clones the iterator + if !req_query_segments.clone().any(|r| r == seg.string) { + return false; + } + } + } -fn queries_collide(route: &Route, req: &Request) -> bool { - route.uri.query().map_or(true, |_| req.uri().query().is_some()) + true } fn media_types_collide(first: &MediaType, other: &MediaType) -> bool { @@ -134,20 +137,20 @@ mod tests { type SimpleRoute = (Method, &'static str); fn m_collide(a: SimpleRoute, b: SimpleRoute) -> bool { - let route_a = Route::new(a.0, a.1.to_string(), dummy_handler); - route_a.collides_with(&Route::new(b.0, b.1.to_string(), dummy_handler)) + let route_a = Route::new(a.0, a.1, dummy_handler); + route_a.collides_with(&Route::new(b.0, b.1, dummy_handler)) } fn unranked_collide(a: &'static str, b: &'static str) -> bool { - let route_a = Route::ranked(0, Get, a.to_string(), dummy_handler); - let route_b = Route::ranked(0, Get, b.to_string(), dummy_handler); + let route_a = Route::ranked(0, Get, a, dummy_handler); + let route_b = Route::ranked(0, Get, b, dummy_handler); eprintln!("Checking {} against {}.", route_a, route_b); route_a.collides_with(&route_b) } fn s_s_collide(a: &'static str, b: &'static str) -> bool { - let a = Origin::parse_route(a).unwrap(); - let b = Origin::parse_route(b).unwrap(); + let a = Route::new(Get, a, dummy_handler); + let b = Route::new(Get, b, dummy_handler); paths_collide(&a, &b) } @@ -187,15 +190,10 @@ mod tests { #[test] fn hard_param_collisions() { - assert!(unranked_collide("/<name>bob", "/<name>b")); - assert!(unranked_collide("/a<b>c", "/abc")); - assert!(unranked_collide("/a<b>c", "/azooc")); - assert!(unranked_collide("/a<b>", "/ab")); - assert!(unranked_collide("/<b>", "/a")); - assert!(unranked_collide("/<a>/<b>", "/a/b<c>")); - assert!(unranked_collide("/<a>/bc<b>", "/a/b<c>")); - assert!(unranked_collide("/<a>/bc<b>d", "/a/b<c>")); assert!(unranked_collide("/<a..>", "///a///")); + assert!(unranked_collide("/<a..>", "//a/bcjdklfj//<c>")); + assert!(unranked_collide("/a/<a..>", "//a/bcjdklfj//<c>")); + assert!(unranked_collide("/a/<b>/<c..>", "//a/bcjdklfj//<c>")); } #[test] @@ -222,12 +220,7 @@ mod tests { assert!(!unranked_collide("/a/hello", "/a/c")); assert!(!unranked_collide("/hello", "/a/c")); assert!(!unranked_collide("/hello/there", "/hello/there/guy")); - assert!(!unranked_collide("/b<a>/there", "/hi/there")); - assert!(!unranked_collide("/<a>/<b>c", "/hi/person")); - assert!(!unranked_collide("/<a>/<b>cd", "/hi/<a>e")); - assert!(!unranked_collide("/a<a>/<b>", "/b<b>/<a>")); assert!(!unranked_collide("/a/<b>", "/b/<b>")); - assert!(!unranked_collide("/a<a>/<b>", "/b/<b>")); assert!(!unranked_collide("/<a..>", "/")); assert!(!unranked_collide("/hi/<a..>", "/hi")); assert!(!unranked_collide("/hi/<a..>", "/hi/")); @@ -272,36 +265,21 @@ mod tests { assert!(!s_s_collide("/a/hello", "/a/c")); assert!(!s_s_collide("/hello", "/a/c")); assert!(!s_s_collide("/hello/there", "/hello/there/guy")); - assert!(!s_s_collide("/b<a>/there", "/hi/there")); - assert!(!s_s_collide("/<a>/<b>c", "/hi/person")); - assert!(!s_s_collide("/<a>/<b>cd", "/hi/<a>e")); - assert!(!s_s_collide("/a<a>/<b>", "/b<b>/<a>")); assert!(!s_s_collide("/a/<b>", "/b/<b>")); - assert!(!s_s_collide("/a<a>/<b>", "/b/<b>")); assert!(!s_s_collide("/a", "/b")); assert!(!s_s_collide("/a/b", "/a")); assert!(!s_s_collide("/a/b", "/a/c")); assert!(!s_s_collide("/a/hello", "/a/c")); assert!(!s_s_collide("/hello", "/a/c")); assert!(!s_s_collide("/hello/there", "/hello/there/guy")); - assert!(!s_s_collide("/b<a>/there", "/hi/there")); - assert!(!s_s_collide("/<a>/<b>c", "/hi/person")); - assert!(!s_s_collide("/<a>/<b>cd", "/hi/<a>e")); - assert!(!s_s_collide("/a<a>/<b>", "/b<b>/<a>")); assert!(!s_s_collide("/a/<b>", "/b/<b>")); - assert!(!s_s_collide("/a<a>/<b>", "/b/<b>")); assert!(!s_s_collide("/a", "/b")); assert!(!s_s_collide("/a/b", "/a")); assert!(!s_s_collide("/a/b", "/a/c")); assert!(!s_s_collide("/a/hello", "/a/c")); assert!(!s_s_collide("/hello", "/a/c")); assert!(!s_s_collide("/hello/there", "/hello/there/guy")); - assert!(!s_s_collide("/b<a>/there", "/hi/there")); - assert!(!s_s_collide("/<a>/<b>c", "/hi/person")); - assert!(!s_s_collide("/<a>/<b>cd", "/hi/<a>e")); - assert!(!s_s_collide("/a<a>/<b>", "/b<b>/<a>")); assert!(!s_s_collide("/a/<b>", "/b/<b>")); - assert!(!s_s_collide("/a<a>/<b>", "/b/<b>")); assert!(!s_s_collide("/<a..>", "/")); assert!(!s_s_collide("/hi/<a..>", "/hi/")); assert!(!s_s_collide("/a/hi/<a..>", "/a/hi/")); @@ -432,7 +410,7 @@ mod tests { assert!(!req_route_mt_collide(Post, None, "application/json")); } - fn req_route_path_collide(a: &'static str, b: &'static str) -> bool { + fn req_route_path_match(a: &'static str, b: &'static str) -> bool { let rocket = Rocket::custom(Config::development().unwrap()); let req = Request::new(&rocket, Get, Origin::parse(a).expect("valid URI")); let route = Route::ranked(0, Get, b.to_string(), dummy_handler); @@ -441,21 +419,37 @@ mod tests { #[test] fn test_req_route_query_collisions() { - assert!(req_route_path_collide("/a/b?a=b", "/a/b?<c>")); - assert!(req_route_path_collide("/a/b?a=b", "/<a>/b?<c>")); - assert!(req_route_path_collide("/a/b?a=b", "/<a>/<b>?<c>")); - assert!(req_route_path_collide("/a/b?a=b", "/a/<b>?<c>")); - assert!(req_route_path_collide("/?b=c", "/?<b>")); - - assert!(req_route_path_collide("/a/b?a=b", "/a/b")); - assert!(req_route_path_collide("/a/b", "/a/b")); - assert!(req_route_path_collide("/a/b/c/d?", "/a/b/c/d")); - assert!(req_route_path_collide("/a/b/c/d?v=1&v=2", "/a/b/c/d")); - - assert!(!req_route_path_collide("/a/b", "/a/b?<c>")); - assert!(!req_route_path_collide("/a/b/c", "/a/b?<c>")); - assert!(!req_route_path_collide("/a?b=c", "/a/b?<c>")); - assert!(!req_route_path_collide("/?b=c", "/a/b?<c>")); - assert!(!req_route_path_collide("/?b=c", "/a?<c>")); + assert!(req_route_path_match("/a/b?a=b", "/a/b?<c>")); + assert!(req_route_path_match("/a/b?a=b", "/<a>/b?<c>")); + assert!(req_route_path_match("/a/b?a=b", "/<a>/<b>?<c>")); + assert!(req_route_path_match("/a/b?a=b", "/a/<b>?<c>")); + assert!(req_route_path_match("/?b=c", "/?<b>")); + + assert!(req_route_path_match("/a/b?a=b", "/a/b")); + assert!(req_route_path_match("/a/b", "/a/b")); + assert!(req_route_path_match("/a/b/c/d?", "/a/b/c/d")); + assert!(req_route_path_match("/a/b/c/d?v=1&v=2", "/a/b/c/d")); + + assert!(req_route_path_match("/a/b", "/a/b?<c>")); + assert!(req_route_path_match("/a/b", "/a/b?<c..>")); + assert!(req_route_path_match("/a/b?c", "/a/b?c")); + assert!(req_route_path_match("/a/b?c", "/a/b?<c>")); + assert!(req_route_path_match("/a/b?c=foo&d=z", "/a/b?<c>")); + assert!(req_route_path_match("/a/b?c=foo&d=z", "/a/b?<c..>")); + + assert!(req_route_path_match("/a/b?c=foo&d=z", "/a/b?c=foo&<c..>")); + assert!(req_route_path_match("/a/b?c=foo&d=z", "/a/b?d=z&<c..>")); + + assert!(!req_route_path_match("/a/b/c", "/a/b?<c>")); + assert!(!req_route_path_match("/a?b=c", "/a/b?<c>")); + assert!(!req_route_path_match("/?b=c", "/a/b?<c>")); + assert!(!req_route_path_match("/?b=c", "/a?<c>")); + + assert!(!req_route_path_match("/a/b?c=foo&d=z", "/a/b?a=b&<c..>")); + assert!(!req_route_path_match("/a/b?c=foo&d=z", "/a/b?d=b&<c..>")); + assert!(!req_route_path_match("/a/b", "/a/b?c")); + assert!(!req_route_path_match("/a/b", "/a/b?foo")); + assert!(!req_route_path_match("/a/b", "/a/b?foo&<rest..>")); + assert!(!req_route_path_match("/a/b", "/a/b?<a>&b&<rest..>")); } } diff --git a/core/lib/src/router/mod.rs b/core/lib/src/router/mod.rs @@ -18,7 +18,7 @@ crate fn dummy_handler<'r>(r: &'r ::Request, _: ::Data) -> ::handler::Outcome<'r #[derive(Default)] pub struct Router { - routes: HashMap<Selector, Vec<Route>>, // using 'selector' for now + routes: HashMap<Selector, Vec<Route>>, } impl Router { @@ -29,7 +29,9 @@ impl Router { pub fn add(&mut self, route: Route) { let selector = route.method; let entries = self.routes.entry(selector).or_insert_with(|| vec![]); - let i = entries.binary_search_by_key(&route.rank, |r| r.rank).unwrap_or_else(|i| i); + let i = entries.binary_search_by_key(&route.rank, |r| r.rank) + .unwrap_or_else(|i| i); + entries.insert(i, route); } @@ -180,6 +182,19 @@ mod test { } #[test] + fn test_collisions_query() { + // Query shouldn't affect things when unranked. + assert!(unranked_route_collisions(&["/hello?<foo>", "/hello"])); + assert!(unranked_route_collisions(&["/<a>?foo=bar", "/hello?foo=bar&cat=fat"])); + assert!(unranked_route_collisions(&["/<a>?foo=bar", "/hello?foo=bar&cat=fat"])); + assert!(unranked_route_collisions(&["/<a>", "/<b>?<foo>"])); + assert!(unranked_route_collisions(&["/hello/bob?a=b", "/hello/<b>?d=e"])); + assert!(unranked_route_collisions(&["/<foo>?a=b", "/foo?d=e"])); + assert!(unranked_route_collisions(&["/<foo>?a=b&<c>", "/<foo>?d=e&<c>"])); + assert!(unranked_route_collisions(&["/<foo>?a=b&<c>", "/<foo>?d=e"])); + } + + #[test] fn test_no_collisions() { assert!(!unranked_route_collisions(&["/<a>", "/a/<a..>"])); assert!(!unranked_route_collisions(&["/a/b", "/a/b/c"])); @@ -198,6 +213,20 @@ mod test { assert!(!default_rank_route_collisions(&["/a/b", "/a/b/<c..>"])); } + #[test] + fn test_collision_when_ranked_query() { + assert!(default_rank_route_collisions(&["/a?a=b", "/a?c=d"])); + assert!(default_rank_route_collisions(&["/<foo>?a=b", "/<foo>?c=d&<d>"])); + } + + #[test] + fn test_no_collision_when_ranked_query() { + assert!(!default_rank_route_collisions(&["/", "/?<c..>"])); + assert!(!default_rank_route_collisions(&["/hi", "/hi?<c>"])); + assert!(!default_rank_route_collisions(&["/hi", "/hi?c"])); + assert!(!default_rank_route_collisions(&["/hi?<c>", "/hi?c"])); + } + fn route<'a>(router: &'a Router, method: Method, uri: &str) -> Option<&'a Route> { let rocket = Rocket::custom(Config::development().unwrap()); let request = Request::new(&rocket, method, Origin::parse(uri).unwrap()); @@ -293,13 +322,17 @@ mod test { assert_ranked_routes!(&["/<a>/<b>", "/hi/a"], "/hi/c", "/<a>/<b>"); assert_ranked_routes!(&["/hi/a", "/hi/<c>"], "/hi/c", "/hi/<c>"); assert_ranked_routes!(&["/a", "/a?<b>"], "/a?b=c", "/a?<b>"); - assert_ranked_routes!(&["/a", "/a?<b>"], "/a", "/a"); - assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/a", "/a"); - assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/b", "/<a>"); - assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], - "/b?v=1", "/<a>?<b>"); - assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], - "/a?b=c", "/a?<b>"); + assert_ranked_routes!(&["/a", "/a?<b>"], "/a", "/a?<b>"); + assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/a", "/a?<b>"); + assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/b", "/<a>?<b>"); + assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/b?v=1", "/<a>?<b>"); + assert_ranked_routes!(&["/a", "/<a>", "/a?<b>", "/<a>?<b>"], "/a?b=c", "/a?<b>"); + assert_ranked_routes!(&["/a", "/a?b"], "/a?b", "/a?b"); + assert_ranked_routes!(&["/<a>", "/a?b"], "/a?b", "/a?b"); + assert_ranked_routes!(&["/a", "/<a>?b"], "/a?b", "/a"); + assert_ranked_routes!(&["/a?<c>&b", "/a?<b>"], "/a", "/a?<b>"); + assert_ranked_routes!(&["/a?<c>&b", "/a?<b>"], "/a?b", "/a?<c>&b"); + assert_ranked_routes!(&["/a?<c>&b", "/a?<b>"], "/a?c", "/a?<b>"); } fn ranked_collisions(routes: &[(isize, &'static str)]) -> bool { @@ -431,50 +464,13 @@ mod test { assert_default_ranked_routing!( to: "/a/b", with: ["/a/<b>", "/a/b", "/a/b?<v>", "/a/<b>?<v>"], - expect: "/a/b", "/a/<b>" + expect: "/a/b?<v>", "/a/b", "/a/<b>?<v>", "/a/<b>" ); - } - - fn match_params(router: &Router, path: &str, expected: &[&str]) -> bool { - println!("Testing: {} (expect: {:?})", path, expected); - route(router, Get, path).map_or(false, |route| { - let uri = Origin::parse_route(path).unwrap(); - let params = route.get_param_indexes(&uri); - if params.len() != expected.len() { - return false; - } - for (k, (i, j)) in params.into_iter().enumerate() { - if &path[i..j] != expected[k] { - return false; - } - } - - true - }) - } - - #[test] - fn test_params() { - let router = router_with_routes(&["/<a>"]); - assert!(match_params(&router, "/hello", &["hello"])); - assert!(match_params(&router, "/hi", &["hi"])); - assert!(match_params(&router, "/bob", &["bob"])); - assert!(match_params(&router, "/i", &["i"])); - - let router = router_with_routes(&["/hello"]); - assert!(match_params(&router, "/hello", &[])); - - let router = router_with_routes(&["/<a>/<b>"]); - assert!(match_params(&router, "/a/b", &["a", "b"])); - assert!(match_params(&router, "/912/sas", &["912", "sas"])); - - let router = router_with_routes(&["/hello/<b>"]); - assert!(match_params(&router, "/hello/b", &["b"])); - assert!(match_params(&router, "/hello/sergio", &["sergio"])); - - let router = router_with_routes(&["/hello/<b>/age"]); - assert!(match_params(&router, "/hello/sergio/age", &["sergio"])); - assert!(match_params(&router, "/hello/you/age", &["you"])); + assert_default_ranked_routing!( + to: "/a/b?c", + with: ["/a/b", "/a/b?<c>", "/a/b?c", "/a/<b>?c", "/a/<b>?<c>", "/<a>/<b>"], + expect: "/a/b?c", "/a/b?<c>", "/a/b", "/a/<b>?c", "/a/<b>?<c>", "/<a>/<b>" + ); } } diff --git a/core/lib/src/router/route.rs b/core/lib/src/router/route.rs @@ -1,4 +1,4 @@ -use std::fmt; +use std::fmt::{self, Display}; use std::convert::From; use yansi::Color::*; @@ -6,8 +6,9 @@ use yansi::Color::*; use codegen::StaticRouteInfo; use handler::Handler; use http::{Method, MediaType}; +use http::route::{RouteSegment, Kind, Error as SegmentError}; use http::ext::IntoOwned; -use http::uri::Origin; +use http::uri::{self, Origin}; /// A route: a method, its handler, path, rank, and format/media type. #[derive(Clone)] @@ -27,71 +28,124 @@ pub struct Route { pub rank: isize, /// The media type this route matches against, if any. pub format: Option<MediaType>, + /// Cached metadata that aids in routing later. + crate metadata: Metadata +} + +#[derive(Debug, Default, Clone)] +crate struct Metadata { + crate path_segments: Vec<RouteSegment<'static>>, + crate query_segments: Option<Vec<RouteSegment<'static>>>, + crate fully_dynamic_query: bool, +} + +impl Metadata { + fn from(route: &Route) -> Result<Metadata, RouteUriError> { + let path_segments = RouteSegment::parse_path(&route.uri) + .map(|res| res.map(|s| s.into_owned())) + .collect::<Result<Vec<_>, _>>()?; + + let (query_segments, dyn) = match RouteSegment::parse_query(&route.uri) { + Some(results) => { + let segments = results.map(|res| res.map(|s| s.into_owned())) + .collect::<Result<Vec<_>, _>>()?; + + let dynamic = !segments.iter().any(|s| s.kind == Kind::Static); + + (Some(segments), dynamic) + } + None => (None, true) + }; + + Ok(Metadata { path_segments, query_segments, fully_dynamic_query: dyn }) + } } #[inline(always)] -fn default_rank(uri: &Origin) -> isize { - // static path, query = -4; static path, no query = -3 - // dynamic path, query = -2; dynamic path, no query = -1 - match (!uri.path().contains('<'), uri.query().is_some()) { - (true, true) => -4, - (true, false) => -3, - (false, true) => -2, - (false, false) => -1, +fn default_rank(route: &Route) -> isize { + let static_path = route.metadata.path_segments.iter().all(|s| s.kind == Kind::Static); + let partly_static_query = route.uri.query().map(|_| !route.metadata.fully_dynamic_query); + match (static_path, partly_static_query) { + (true, Some(true)) => -6, // static path, partly static query + (true, Some(false)) => -5, // static path, fully dynamic query + (true, None) => -4, // static path, no query + (false, Some(true)) => -3, // dynamic path, partly static query + (false, Some(false)) => -2, // dynamic path, fully dynamic query + (false, None) => -1, // dynamic path, no query } } +fn panic<U: Display, E: Display, T>(uri: U, e: E) -> T { + panic!("invalid URI '{}' used to construct route: {}", uri, e) +} + impl Route { /// Creates a new route with the given method, path, and handler with a base /// of `/`. /// /// # Ranking /// - /// The route's rank is set so that routes with static paths are ranked - /// higher than routes with dynamic paths, and routes with query strings - /// are ranked higher than routes without query strings. This default ranking - /// is summarized by the table below: + /// The route's rank is set so that routes with static paths (no dynamic + /// parameters) are ranked higher than routes with dynamic paths, routes + /// with query strings with static segments are ranked higher than routes + /// with fully dynamic queries, and routes with queries are ranked higher + /// than routes without queries. This default ranking is summarized by the + /// table below: /// - /// | static path | query | rank | - /// |-------------|-------|------| - /// | yes | yes | -4 | - /// | yes | no | -3 | - /// | no | yes | -2 | - /// | no | no | -1 | + /// | static path | query | rank | + /// |-------------|---------------|------| + /// | yes | partly static | -6 | + /// | yes | fully dynamic | -5 | + /// | yes | none | -4 | + /// | no | partly static | -3 | + /// | no | fully dynamic | -2 | + /// | no | none | -1 | /// /// # Example /// /// ```rust - /// use rocket::{Request, Route, Data}; - /// use rocket::handler::Outcome; + /// use rocket::Route; /// use rocket::http::Method; + /// # use rocket::{Request, Data}; + /// # use rocket::handler::Outcome; + /// # fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { + /// # Outcome::from(request, "Hello, world!") + /// # } + /// + /// // this is rank -6 (static path, ~static query) + /// let route = Route::new(Method::Get, "/foo?bar=baz&<zoo>", handler); + /// assert_eq!(route.rank, -6); + /// + /// // this is rank -5 (static path, fully dynamic query) + /// let route = Route::new(Method::Get, "/foo?<zoo..>", handler); + /// assert_eq!(route.rank, -5); /// - /// fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { - /// Outcome::from(request, "Hello, world!") - /// } + /// // this is a rank -4 route (static path, no query) + /// let route = Route::new(Method::Get, "/", handler); + /// assert_eq!(route.rank, -4); /// - /// // this is a rank -3 route matching requests to `GET /` - /// let index = Route::new(Method::Get, "/", handler); + /// // this is a rank -3 route (dynamic path, ~static query) + /// let route = Route::new(Method::Get, "/foo/<bar>?blue", handler); + /// assert_eq!(route.rank, -3); /// - /// // this is a rank -4 route matching requests to `GET /?<name>` - /// let index_name = Route::new(Method::Get, "/?<name>", handler); + /// // this is a rank -2 route (dynamic path, fully dynamic query) + /// let route = Route::new(Method::Get, "/<bar>?<blue>", handler); + /// assert_eq!(route.rank, -2); /// - /// // this is a rank -1 route matching requests to `GET /<name>` - /// let name = Route::new(Method::Get, "/<name>", handler); + /// // this is a rank -1 route (dynamic path, no query) + /// let route = Route::new(Method::Get, "/<bar>/foo/<baz..>", handler); + /// assert_eq!(route.rank, -1); /// ``` /// /// # Panics /// - /// Panics if `path` is not a valid origin URI. + /// Panics if `path` is not a valid origin URI or Rocket route URI. pub fn new<S, H>(method: Method, path: S, handler: H) -> Route where S: AsRef<str>, H: Handler + 'static { - let path = path.as_ref(); - let origin = Origin::parse_route(path) - .expect("invalid URI used as route path in `Route::new()`"); - - let rank = default_rank(&origin); - Route::ranked(rank, method, path, handler) + let mut route = Route::ranked(0, method, path, handler); + route.rank = default_rank(&route); + route } /// Creates a new route with the given rank, method, path, and handler with @@ -100,13 +154,13 @@ impl Route { /// # Example /// /// ```rust - /// use rocket::{Request, Route, Data}; - /// use rocket::handler::Outcome; + /// use rocket::Route; /// use rocket::http::Method; - /// - /// fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { - /// Outcome::from(request, "Hello, world!") - /// } + /// # use rocket::{Request, Data}; + /// # use rocket::handler::Outcome; + /// # fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { + /// # Outcome::from(request, "Hello, world!") + /// # } /// /// // this is a rank 1 route matching requests to `GET /` /// let index = Route::ranked(1, Method::Get, "/", handler); @@ -114,21 +168,35 @@ impl Route { /// /// # Panics /// - /// Panics if `path` is not a valid origin URI. + /// Panics if `path` is not a valid origin URI or Rocket route URI. pub fn ranked<S, H>(rank: isize, method: Method, path: S, handler: H) -> Route where S: AsRef<str>, H: Handler + 'static { - let uri = Origin::parse_route(path.as_ref()) - .expect("invalid URI used as route path in `Route::ranked()`") + let path = path.as_ref(); + let uri = Origin::parse_route(path) + .unwrap_or_else(|e| panic(path, e)) + .to_normalized() .into_owned(); - Route { + let mut route = Route { name: None, format: None, base: Origin::dummy(), handler: Box::new(handler), + metadata: Metadata::default(), method, rank, uri - } + }; + + route.update_metadata().unwrap_or_else(|e| panic(path, e)); + route + } + + /// Updates the cached routing metadata. MUST be called whenver the route's + /// URI is set or changes. + fn update_metadata(&mut self) -> Result<(), RouteUriError> { + let new_metadata = Metadata::from(&*self)?; + self.metadata = new_metadata; + Ok(()) } /// Retrieves the path of the base mount point of this route as an `&str`. @@ -136,15 +204,16 @@ impl Route { /// # Example /// /// ```rust - /// use rocket::{Request, Route, Data}; - /// use rocket::handler::Outcome; + /// use rocket::Route; /// use rocket::http::Method; + /// # use rocket::{Request, Data}; + /// # use rocket::handler::Outcome; + /// # + /// # fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { + /// # Outcome::from(request, "Hello, world!") + /// # } /// - /// fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { - /// Outcome::from(request, "Hello, world!") - /// } - /// - /// let mut index = Route::ranked(1, Method::Get, "/", handler); + /// let mut index = Route::new(Method::Get, "/", handler); /// assert_eq!(index.base(), "/"); /// assert_eq!(index.base.path(), "/"); /// ``` @@ -153,80 +222,95 @@ impl Route { self.base.path() } - /// Sets the base mount point of the route. Does not update the rank or any - /// other parameters. If `path` contains a query, it is ignored. + /// Sets the base mount point of the route to `base` and sets the path to + /// `path`. The `path` should _not_ contains the `base` mount point. If + /// `base` contains a query, it is ignored. Note that `self.uri` will + /// include the new `base` after this method is called. + /// + /// # Errors + /// + /// Returns an error if any of the following occur: + /// + /// * The base mount point contains dynamic parameters. + /// * The base mount point or path contain encoded characters. + /// * The path is not a valid Rocket route URI. /// /// # Example /// /// ```rust - /// use rocket::{Request, Route, Data}; + /// use rocket::Route; /// use rocket::http::{Method, uri::Origin}; - /// use rocket::handler::Outcome; - /// - /// fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { - /// Outcome::from(request, "Hello, world!") - /// } + /// # use rocket::{Request, Data}; + /// # use rocket::handler::Outcome; + /// # + /// # fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { + /// # Outcome::from(request, "Hello, world!") + /// # } /// - /// let mut index = Route::ranked(1, Method::Get, "/", handler); + /// let mut index = Route::new(Method::Get, "/", handler); /// assert_eq!(index.base(), "/"); /// assert_eq!(index.base.path(), "/"); /// - /// index.set_base(Origin::parse("/hi").unwrap()); - /// assert_eq!(index.base(), "/hi"); - /// assert_eq!(index.base.path(), "/hi"); + /// let new_base = Origin::parse("/greeting").unwrap(); + /// let new_uri = Origin::parse("/hi").unwrap(); + /// index.set_uri(new_base, new_uri); + /// assert_eq!(index.base(), "/greeting"); + /// assert_eq!(index.uri.path(), "/greeting/hi"); /// ``` - pub fn set_base<'a>(&mut self, path: Origin<'a>) { - self.base = path.into_owned(); - self.base.clear_query(); + pub fn set_uri<'a>( + &mut self, + mut base: Origin<'a>, + path: Origin<'a> + ) -> Result<(), RouteUriError> { + base.clear_query(); + for segment in RouteSegment::parse_path(&base) { + if segment?.kind != Kind::Static { + return Err(RouteUriError::DynamicBase); + } + } + + let complete_uri = format!("{}/{}", base, path); + let uri = Origin::parse_route(&complete_uri)?; + self.base = base.to_normalized().into_owned(); + self.uri = uri.to_normalized().into_owned(); + self.update_metadata()?; + + Ok(()) } +} - /// Sets the path of the route. Does not update the rank or any other - /// parameters. - /// - /// # Example - /// - /// ```rust - /// use rocket::{Request, Route, Data}; - /// use rocket::http::{Method, uri::Origin}; - /// use rocket::handler::Outcome; - /// - /// fn handler<'r>(request: &'r Request, _data: Data) -> Outcome<'r> { - /// Outcome::from(request, "Hello, world!") - /// } - /// - /// let mut index = Route::ranked(1, Method::Get, "/", handler); - /// assert_eq!(index.uri.path(), "/"); - /// - /// index.set_uri(Origin::parse("/hello").unwrap()); - /// assert_eq!(index.uri.path(), "/hello"); - /// ``` - pub fn set_uri<'a>(&mut self, uri: Origin<'a>) { - self.uri = uri.into_owned(); +#[derive(Debug)] +pub enum RouteUriError { + Segment, + Uri(uri::Error<'static>), + DynamicBase, +} + +impl<'a> From<(&'a str, SegmentError<'a>)> for RouteUriError { + fn from(_: (&'a str, SegmentError<'a>)) -> Self { + RouteUriError::Segment } +} - // FIXME: Decide whether a component has to be fully variable or not. That - // is, whether you can have: /a<a>b/ or even /<a>:<b>/ - // TODO: Don't return a Vec...take in an &mut [&'a str] (no alloc!) - /// Given a URI, returns a vector of slices of that URI corresponding to the - /// dynamic segments in this route. - crate fn get_param_indexes(&self, uri: &Origin) -> Vec<(usize, usize)> { - let route_segs = self.uri.segments(); - let uri_segs = uri.segments(); - let start_addr = uri.path().as_ptr() as usize; - - let mut result = Vec::with_capacity(self.uri.segment_count()); - for (route_seg, uri_seg) in route_segs.zip(uri_segs) { - let i = (uri_seg.as_ptr() as usize) - start_addr; - if route_seg.ends_with("..>") { - result.push((i, uri.path().len())); - break; - } else if route_seg.ends_with('>') { - let j = i + uri_seg.len(); - result.push((i, j)); +impl<'a> From<uri::Error<'a>> for RouteUriError { + fn from(error: uri::Error<'a>) -> Self { + RouteUriError::Uri(error.into_owned()) + } +} + +impl fmt::Display for RouteUriError { + fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + match self { + RouteUriError::Segment => { + write!(f, "The URI contains malformed dynamic route path segments.") + } + RouteUriError::DynamicBase => { + write!(f, "The mount point contains dynamic parameters.") + } + RouteUriError::Uri(error) => { + write!(f, "Malformed URI: {}", error) } } - - result } } @@ -260,6 +344,7 @@ impl fmt::Debug for Route { .field("uri", &self.uri) .field("rank", &self.rank) .field("format", &self.format) + .field("metadata", &self.metadata) .finish() } } diff --git a/core/lib/tests/absolute-uris-okay-issue-443.rs b/core/lib/tests/absolute-uris-okay-issue-443.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/fairing_before_head_strip-issue-546.rs b/core/lib/tests/fairing_before_head_strip-issue-546.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/flash-lazy-removes-issue-466.rs b/core/lib/tests/flash-lazy-removes-issue-466.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/form_method-issue-45.rs b/core/lib/tests/form_method-issue-45.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/form_value_decoding-issue-82.rs b/core/lib/tests/form_value_decoding-issue-82.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/head_handling.rs b/core/lib/tests/head_handling.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/limits.rs b/core/lib/tests/limits.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/local-request-content-type-issue-505.rs b/core/lib/tests/local-request-content-type-issue-505.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/local_request_private_cookie-issue-368.rs b/core/lib/tests/local_request_private_cookie-issue-368.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/nested-fairing-attaches.rs b/core/lib/tests/nested-fairing-attaches.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/precise-content-type-matching.rs b/core/lib/tests/precise-content-type-matching.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/query-and-non-query-dont-collide.rs b/core/lib/tests/query-and-non-query-dont-collide.rs @@ -1,43 +0,0 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] - -#[macro_use] extern crate rocket; - -#[derive(FromForm)] -struct Query { - field: String -} - -#[get("/?<query>")] -fn first(query: Query) -> String { - query.field -} - -#[get("/")] -fn second() -> &'static str { - "no query" -} - -mod tests { - use super::*; - use rocket::Rocket; - use rocket::local::Client; - - fn assert_no_collision(rocket: Rocket) { - let client = Client::new(rocket).unwrap(); - let mut response = client.get("/?field=query").dispatch(); - assert_eq!(response.body_string(), Some("query".into())); - - let mut response = client.get("/").dispatch(); - assert_eq!(response.body_string(), Some("no query".into())); - } - - #[test] - fn check_query_collisions() { - let rocket = rocket::ignite().mount("/", routes![first, second]); - assert_no_collision(rocket); - - let rocket = rocket::ignite().mount("/", routes![second, first]); - assert_no_collision(rocket); - } -} diff --git a/core/lib/tests/redirect_from_catcher-issue-113.rs b/core/lib/tests/redirect_from_catcher-issue-113.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/responder_lifetime-issue-345.rs b/core/lib/tests/responder_lifetime-issue-345.rs @@ -1,8 +1,7 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #![allow(dead_code)] // This test is only here so that we can ensure it compiles. -extern crate rocket; +#[macro_use] extern crate rocket; use rocket::State; use rocket::response::{self, Responder}; diff --git a/core/lib/tests/route_guard.rs b/core/lib/tests/route_guard.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/segments-issues-41-86.rs b/core/lib/tests/segments-issues-41-86.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/core/lib/tests/strict_and_lenient_forms.rs b/core/lib/tests/strict_and_lenient_forms.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/config/Cargo.toml b/examples/config/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/config/src/main.rs b/examples/config/src/main.rs @@ -1,6 +1,3 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - extern crate rocket; // This example's illustration is the Rocket.toml file. diff --git a/examples/content_types/Cargo.toml b/examples/content_types/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } serde = "1.0" serde_json = "1.0" serde_derive = "1.0" diff --git a/examples/content_types/src/main.rs b/examples/content_types/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; #[macro_use] extern crate serde_derive; diff --git a/examples/cookies/Cargo.toml b/examples/cookies/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } [dependencies.rocket_contrib] path = "../../contrib/lib" diff --git a/examples/cookies/src/main.rs b/examples/cookies/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] extern crate rocket_contrib; #[macro_use] extern crate rocket; diff --git a/examples/errors/Cargo.toml b/examples/errors/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/errors/src/main.rs b/examples/errors/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/fairings/Cargo.toml b/examples/fairings/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/fairings/src/main.rs b/examples/fairings/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/form_kitchen_sink/Cargo.toml b/examples/form_kitchen_sink/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/form_kitchen_sink/src/main.rs b/examples/form_kitchen_sink/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/form_validation/Cargo.toml b/examples/form_validation/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/form_validation/src/files.rs b/examples/form_validation/src/files.rs @@ -4,11 +4,11 @@ use std::io; use std::path::{Path, PathBuf}; #[get("/")] -fn index() -> io::Result<NamedFile> { +pub fn index() -> io::Result<NamedFile> { NamedFile::open("static/index.html") } #[get("/<file..>", rank = 2)] -fn files(file: PathBuf) -> io::Result<NamedFile> { +pub fn files(file: PathBuf) -> io::Result<NamedFile> { NamedFile::open(Path::new("static/").join(file)) } diff --git a/examples/form_validation/src/main.rs b/examples/form_validation/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/handlebars_templates/Cargo.toml b/examples/handlebars_templates/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } serde = "1.0" serde_derive = "1.0" serde_json = "1.0" diff --git a/examples/handlebars_templates/src/main.rs b/examples/handlebars_templates/src/main.rs @@ -1,9 +1,8 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -extern crate rocket_contrib; #[macro_use] extern crate rocket; #[macro_use] extern crate serde_derive; +extern crate rocket_contrib; #[cfg(test)] mod tests; diff --git a/examples/hello_2018/Cargo.toml b/examples/hello_2018/Cargo.toml @@ -7,4 +7,3 @@ edition = "2018" [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/hello_2018/src/main.rs b/examples/hello_2018/src/main.rs @@ -1,7 +1,6 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -use rocket::{self, routes}; +#[macro_use] extern crate rocket; #[cfg(test)] mod tests; diff --git a/examples/hello_person/Cargo.toml b/examples/hello_person/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/hello_person/src/main.rs b/examples/hello_person/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/hello_world/Cargo.toml b/examples/hello_world/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/hello_world/src/main.rs b/examples/hello_world/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/json/Cargo.toml b/examples/json/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } serde = "1.0" serde_json = "1.0" serde_derive = "1.0" diff --git a/examples/json/src/main.rs b/examples/json/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; #[macro_use] extern crate rocket_contrib; diff --git a/examples/managed_queue/Cargo.toml b/examples/managed_queue/Cargo.toml @@ -7,4 +7,3 @@ publish = false [dependencies] crossbeam = "0.4" rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/managed_queue/src/main.rs b/examples/managed_queue/src/main.rs @@ -1,30 +1,23 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -extern crate crossbeam; #[macro_use] extern crate rocket; +extern crate crossbeam; #[cfg(test)] mod tests; -use crossbeam::queue::MsQueue; use rocket::State; +use crossbeam::queue::MsQueue; -#[derive(FromForm, Debug)] -struct Event { - description: String -} - -struct LogChannel(MsQueue<Event>); +struct LogChannel(MsQueue<String>); #[put("/push?<event>")] -fn push(event: Event, queue: State<LogChannel>) { +fn push(event: String, queue: State<LogChannel>) { queue.0.push(event); } #[get("/pop")] fn pop(queue: State<LogChannel>) -> String { - let queue = &queue.0; - queue.pop().description + queue.0.pop() } fn rocket() -> rocket::Rocket { diff --git a/examples/managed_queue/src/tests.rs b/examples/managed_queue/src/tests.rs @@ -5,7 +5,7 @@ use rocket::http::Status; fn test_push_pop() { let client = Client::new(super::rocket()).unwrap(); - let response = client.put("/push?description=test1").dispatch(); + let response = client.put("/push?event=test1").dispatch(); assert_eq!(response.status(), Status::Ok); let mut response = client.get("/pop").dispatch(); diff --git a/examples/manual_routes/src/main.rs b/examples/manual_routes/src/main.rs @@ -30,10 +30,9 @@ fn name<'a>(req: &'a Request, _: Data) -> Outcome<'a> { } fn echo_url<'r>(req: &'r Request, _: Data) -> Outcome<'r> { - let param = req.uri() - .path() - .split_at(6) - .1; + let param = req.get_param::<&RawStr>(1) + .and_then(|res| res.ok()) + .into_outcome(Status::BadRequest)?; Outcome::from(req, RawStr::from_str(param).url_decode()) } @@ -92,7 +91,7 @@ fn rocket() -> rocket::Rocket { let always_forward = Route::ranked(1, Get, "/", forward); let hello = Route::ranked(2, Get, "/", hi); - let echo = Route::new(Get, "/echo:<str>", echo_url); + let echo = Route::new(Get, "/echo/<str>", echo_url); let name = Route::new(Get, "/<name>", name); let post_upload = Route::new(Post, "/", upload); let get_upload = Route::new(Get, "/", get_upload); diff --git a/examples/manual_routes/src/tests.rs b/examples/manual_routes/src/tests.rs @@ -24,8 +24,8 @@ fn test_name() { #[test] fn test_echo() { - let uri = format!("/echo:echo%20text"); - test(&uri, ContentType::Plain, Status::Ok, "echo text".into()); + let uri = format!("/echo/echo%20this%20text"); + test(&uri, ContentType::Plain, Status::Ok, "echo this text".into()); } #[test] diff --git a/examples/msgpack/Cargo.toml b/examples/msgpack/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } serde = "1.0" serde_derive = "1.0" diff --git a/examples/msgpack/src/main.rs b/examples/msgpack/src/main.rs @@ -1,36 +1,31 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; -extern crate rocket_contrib; #[macro_use] extern crate serde_derive; +extern crate rocket_contrib; #[cfg(test)] mod tests; use rocket_contrib::MsgPack; #[derive(Serialize, Deserialize)] -struct Message { +struct Message<'r> { id: usize, - contents: String + contents: &'r str } #[get("/<id>", format = "msgpack")] -fn get(id: usize) -> MsgPack<Message> { - MsgPack(Message { - id: id, - contents: "Hello, world!".to_string(), - }) +fn get(id: usize) -> MsgPack<Message<'static>> { + MsgPack(Message { id: id, contents: "Hello, world!", }) } #[post("/", data = "<data>", format = "msgpack")] -fn create(data: MsgPack<Message>) -> Result<String, ()> { - Ok(data.into_inner().contents) +fn create(data: MsgPack<Message>) -> String { + data.contents.to_string() } fn rocket() -> rocket::Rocket { - rocket::ignite() - .mount("/message", routes![get, create]) + rocket::ignite().mount("/message", routes![get, create]) } fn main() { diff --git a/examples/optional_redirect/Cargo.toml b/examples/optional_redirect/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/optional_redirect/src/main.rs b/examples/optional_redirect/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/pastebin/Cargo.toml b/examples/pastebin/Cargo.toml @@ -6,5 +6,4 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } rand = "0.5" diff --git a/examples/pastebin/src/main.rs b/examples/pastebin/src/main.rs @@ -1,8 +1,6 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -#[macro_use] -extern crate rocket; +#[macro_use] extern crate rocket; extern crate rand; mod paste_id; diff --git a/examples/query_params/Cargo.toml b/examples/query_params/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/query_params/src/main.rs b/examples/query_params/src/main.rs @@ -1,25 +1,39 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; #[cfg(test)] mod tests; +use rocket::request::{Form, LenientForm}; + #[derive(FromForm)] struct Person { name: String, age: Option<u8> } -#[get("/hello?<person>")] -fn hello(person: Person) -> String { - if let Some(age) = person.age { - format!("Hello, {} year old named {}!", age, person.name) +#[get("/hello?<person..>")] +fn hello(person: Option<Form<Person>>) -> String { + if let Some(person) = person { + if let Some(age) = person.age { + format!("Hello, {} year old named {}!", age, person.name) + } else { + format!("Hello {}!", person.name) + } } else { - format!("Hello {}!", person.name) + "We're gonna need a name, and only a name.".into() } } +#[get("/hello?age=20&<person..>")] +fn hello_20(person: LenientForm<Person>) -> String { + format!("20 years old? Hi, {}!", person.name) +} + +fn rocket() -> rocket::Rocket { + rocket::ignite().mount("/", routes![hello, hello_20]) +} + fn main() { - rocket::ignite().mount("/", routes![hello]).launch(); + rocket().launch(); } diff --git a/examples/query_params/src/tests.rs b/examples/query_params/src/tests.rs @@ -4,10 +4,7 @@ use rocket::http::Status; macro_rules! run_test { ($query:expr, $test_fn:expr) => ({ - let rocket = rocket::ignite() - .mount("/", routes![super::hello]); - - let client = Client::new(rocket).unwrap(); + let client = Client::new(rocket()).unwrap(); $test_fn(client.get(format!("/hello{}", $query)).dispatch()); }) } @@ -16,14 +13,25 @@ macro_rules! run_test { fn age_and_name_params() { run_test!("?age=10&name=john", |mut response: Response| { assert_eq!(response.body_string(), - Some("Hello, 10 year old named john!".into())); + Some("Hello, 10 year old named john!".into())); + }); + + run_test!("?age=20&name=john", |mut response: Response| { + assert_eq!(response.body_string(), + Some("20 years old? Hi, john!".into())); }); } #[test] fn age_param_only() { - run_test!("?age=10", |response: Response| { - assert_eq!(response.status(), Status::NotFound); + run_test!("?age=10", |mut response: Response| { + assert_eq!(response.body_string(), + Some("We're gonna need a name, and only a name.".into())); + }); + + run_test!("?age=20", |mut response: Response| { + assert_eq!(response.body_string(), + Some("We're gonna need a name, and only a name.".into())); }); } @@ -36,22 +44,33 @@ fn name_param_only() { #[test] fn no_params() { - run_test!("", |response: Response| { - assert_eq!(response.status(), Status::NotFound); + run_test!("", |mut response: Response| { + assert_eq!(response.body_string(), + Some("We're gonna need a name, and only a name.".into())); }); - run_test!("?", |response: Response| { - assert_eq!(response.status(), Status::NotFound); + run_test!("?", |mut response: Response| { + assert_eq!(response.body_string(), + Some("We're gonna need a name, and only a name.".into())); }); } #[test] -fn non_existent_params() { - run_test!("?x=y", |response: Response| { - assert_eq!(response.status(), Status::NotFound); +fn extra_params() { + run_test!("?age=20&name=Bob&extra", |mut response: Response| { + assert_eq!(response.body_string(), + Some("20 years old? Hi, Bob!".into())); }); - run_test!("?age=10&name=john&complete=true", |response: Response| { + run_test!("?age=30&name=Bob&extra", |mut response: Response| { + assert_eq!(response.body_string(), + Some("We're gonna need a name, and only a name.".into())); + }); +} + +#[test] +fn wrong_path() { + run_test!("/other?age=20&name=Bob", |response: Response| { assert_eq!(response.status(), Status::NotFound); }); } diff --git a/examples/ranking/Cargo.toml b/examples/ranking/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/ranking/src/main.rs b/examples/ranking/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/raw_sqlite/Cargo.toml b/examples/raw_sqlite/Cargo.toml @@ -6,5 +6,4 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } rusqlite = "0.13" diff --git a/examples/raw_sqlite/src/main.rs b/examples/raw_sqlite/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; extern crate rusqlite; diff --git a/examples/raw_upload/Cargo.toml b/examples/raw_upload/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/raw_upload/src/main.rs b/examples/raw_upload/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/redirect/src/main.rs b/examples/redirect/src/main.rs @@ -1,4 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] +#![feature(plugin, proc_macro_non_items, proc_macro_gen, decl_macro)] #![plugin(rocket_codegen)] #[macro_use] extern crate rocket; diff --git a/examples/request_guard/Cargo.toml b/examples/request_guard/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/request_guard/src/main.rs b/examples/request_guard/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, never_type, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro, never_type)] #[macro_use] extern crate rocket; diff --git a/examples/request_local_state/Cargo.toml b/examples/request_local_state/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/request_local_state/src/main.rs b/examples/request_local_state/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, never_type, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/session/src/main.rs b/examples/session/src/main.rs @@ -1,8 +1,8 @@ -#![feature(plugin, decl_macro, never_type, proc_macro_non_items)] +#![feature(plugin, proc_macro_non_items, proc_macro_gen, decl_macro, never_type)] #![plugin(rocket_codegen)] -extern crate rocket_contrib; #[macro_use] extern crate rocket; +extern crate rocket_contrib; #[cfg(test)] mod tests; diff --git a/examples/state/Cargo.toml b/examples/state/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/state/src/main.rs b/examples/state/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/static_files/Cargo.toml b/examples/static_files/Cargo.toml @@ -6,5 +6,4 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } rocket_contrib = { path = "../../contrib/lib" } diff --git a/examples/static_files/src/main.rs b/examples/static_files/src/main.rs @@ -1,6 +1,3 @@ -#![feature(plugin, decl_macro)] -#![plugin(rocket_codegen)] - extern crate rocket; extern crate rocket_contrib; diff --git a/examples/stream/Cargo.toml b/examples/stream/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/stream/src/main.rs b/examples/stream/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/tera_templates/src/main.rs b/examples/tera_templates/src/main.rs @@ -1,10 +1,10 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] +#![feature(plugin, proc_macro_non_items, proc_macro_gen, decl_macro)] #![plugin(rocket_codegen)] -extern crate rocket_contrib; #[macro_use] extern crate rocket; -extern crate serde_json; #[macro_use] extern crate serde_derive; +extern crate serde_json; +extern crate rocket_contrib; #[cfg(test)] mod tests; diff --git a/examples/testing/Cargo.toml b/examples/testing/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/testing/src/main.rs b/examples/testing/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/tls/Cargo.toml b/examples/tls/Cargo.toml @@ -6,4 +6,3 @@ publish = false [dependencies] rocket = { path = "../../core/lib", features = ["tls"] } -rocket_codegen = { path = "../../core/codegen" } diff --git a/examples/tls/src/main.rs b/examples/tls/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; diff --git a/examples/todo/Cargo.toml b/examples/todo/Cargo.toml @@ -6,7 +6,6 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } serde = "1.0" serde_json = "1.0" serde_derive = "1.0" diff --git a/examples/todo/src/main.rs b/examples/todo/src/main.rs @@ -1,5 +1,4 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] #[macro_use] extern crate rocket; #[macro_use] extern crate diesel; diff --git a/examples/uuid/Cargo.toml b/examples/uuid/Cargo.toml @@ -6,9 +6,8 @@ publish = false [dependencies] rocket = { path = "../../core/lib" } -rocket_codegen = { path = "../../core/codegen" } -uuid = "0.7" lazy_static = "1.0" +uuid = "0.7" [dependencies.rocket_contrib] default-features = false diff --git a/examples/uuid/src/main.rs b/examples/uuid/src/main.rs @@ -1,17 +1,14 @@ -#![feature(plugin, decl_macro, proc_macro_non_items)] -#![plugin(rocket_codegen)] +#![feature(proc_macro_non_items, proc_macro_gen, decl_macro)] -#[macro_use] -extern crate lazy_static; -extern crate uuid; #[macro_use] extern crate rocket; +#[macro_use] extern crate lazy_static; +extern crate uuid; extern crate rocket_contrib; use std::collections::HashMap; use rocket_contrib::Uuid; -#[cfg(test)] -mod tests; +#[cfg(test)] mod tests; lazy_static! { // A small people lookup table for the sake of this example. In a real @@ -39,8 +36,7 @@ fn people(id: Uuid) -> Result<String, String> { } fn rocket() -> rocket::Rocket { - rocket::ignite() - .mount("/", routes![people]) + rocket::ignite().mount("/", routes![people]) } fn main() {