Update chi/middleware to chi/v5/middleware (#17888)

Fix #17880


Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
zeripath
2021-12-02 21:58:08 +01:00
committed by GitHub
parent 4646c7c52d
commit 957c3fcb59
42 changed files with 128 additions and 2572 deletions
-1
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@@ -36,7 +36,6 @@ require (
github.com/ethantkoenig/rupture v1.0.0
github.com/gliderlabs/ssh v0.3.3
github.com/go-asn1-ber/asn1-ber v1.5.3 // indirect
github.com/go-chi/chi v1.5.4
github.com/go-chi/chi/v5 v5.0.4
github.com/go-chi/cors v1.2.0
github.com/go-enry/go-enry/v2 v2.7.1
-2
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@@ -319,8 +319,6 @@ github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31/go.mod h1:Ogl1T
github.com/go-asn1-ber/asn1-ber v1.5.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
github.com/go-asn1-ber/asn1-ber v1.5.3 h1:u7utq56RUFiynqUzgVMFDymapcOtQ/MZkh3H4QYkxag=
github.com/go-asn1-ber/asn1-ber v1.5.3/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
github.com/go-chi/chi v1.5.4 h1:QHdzF2szwjqVV4wmByUnTcsbIg7UGaQ0tPF2t5GcAIs=
github.com/go-chi/chi v1.5.4/go.mod h1:uaf8YgoFazUOkPBG7fxPftUylNumIev9awIWOENIuEg=
github.com/go-chi/chi/v5 v5.0.1/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
github.com/go-chi/chi/v5 v5.0.4 h1:5e494iHzsYBiyXQAHHuI4tyJS9M3V84OuX3ufIIGHFo=
github.com/go-chi/chi/v5 v5.0.4/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+1 -1
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@@ -15,7 +15,7 @@ import (
"code.gitea.io/gitea/modules/setting"
"github.com/chi-middleware/proxy"
"github.com/go-chi/chi/middleware"
"github.com/go-chi/chi/v5/middleware"
)
// Middlewares returns common middlewares
+1 -1
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@@ -40,7 +40,7 @@ import (
"gitea.com/go-chi/captcha"
"github.com/NYTimes/gziphandler"
"github.com/go-chi/chi/middleware"
"github.com/go-chi/chi/v5/middleware"
"github.com/go-chi/cors"
"github.com/prometheus/client_golang/prometheus"
"github.com/tstranex/u2f"
-3
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@@ -1,3 +0,0 @@
.idea
*.sw?
.vscode
-269
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@@ -1,269 +0,0 @@
# Changelog
## v1.5.4 (2021-02-27)
- Undo prior retraction in v1.5.3 as we prepare for v5.0.0 release
- History of changes: see https://github.com/go-chi/chi/compare/v1.5.3...v1.5.4
## v1.5.3 (2021-02-21)
- Update go.mod to go 1.16 with new retract directive marking all versions without prior go.mod support
- History of changes: see https://github.com/go-chi/chi/compare/v1.5.2...v1.5.3
## v1.5.2 (2021-02-10)
- Reverting allocation optimization as a precaution as go test -race fails.
- Minor improvements, see history below
- History of changes: see https://github.com/go-chi/chi/compare/v1.5.1...v1.5.2
## v1.5.1 (2020-12-06)
- Performance improvement: removing 1 allocation by foregoing context.WithValue, thank you @bouk for
your contribution (https://github.com/go-chi/chi/pull/555). Note: new benchmarks posted in README.
- `middleware.CleanPath`: new middleware that clean's request path of double slashes
- deprecate & remove `chi.ServerBaseContext` in favour of stdlib `http.Server#BaseContext`
- plus other tiny improvements, see full commit history below
- History of changes: see https://github.com/go-chi/chi/compare/v4.1.2...v1.5.1
## v1.5.0 (2020-11-12) - now with go.mod support
`chi` dates back to 2016 with it's original implementation as one of the first routers to adopt the newly introduced
context.Context api to the stdlib -- set out to design a router that is faster, more modular and simpler than anything
else out there -- while not introducing any custom handler types or dependencies. Today, `chi` still has zero dependencies,
and in many ways is future proofed from changes, given it's minimal nature. Between versions, chi's iterations have been very
incremental, with the architecture and api being the same today as it was originally designed in 2016. For this reason it
makes chi a pretty easy project to maintain, as well thanks to the many amazing community contributions over the years
to who all help make chi better (total of 86 contributors to date -- thanks all!).
Chi has been an labour of love, art and engineering, with the goals to offer beautiful ergonomics, flexibility, performance
and simplicity when building HTTP services with Go. I've strived to keep the router very minimal in surface area / code size,
and always improving the code wherever possible -- and as of today the `chi` package is just 1082 lines of code (not counting
middlewares, which are all optional). As well, I don't have the exact metrics, but from my analysis and email exchanges from
companies and developers, chi is used by thousands of projects around the world -- thank you all as there is no better form of
joy for me than to have art I had started be helpful and enjoyed by others. And of course I use chi in all of my own projects too :)
For me, the asthetics of chi's code and usage are very important. With the introduction of Go's module support
(which I'm a big fan of), chi's past versioning scheme choice to v2, v3 and v4 would mean I'd require the import path
of "github.com/go-chi/chi/v4", leading to the lengthy discussion at https://github.com/go-chi/chi/issues/462.
Haha, to some, you may be scratching your head why I've spent > 1 year stalling to adopt "/vXX" convention in the import
path -- which isn't horrible in general -- but for chi, I'm unable to accept it as I strive for perfection in it's API design,
aesthetics and simplicity. It just doesn't feel good to me given chi's simple nature -- I do not foresee a "v5" or "v6",
and upgrading between versions in the future will also be just incremental.
I do understand versioning is a part of the API design as well, which is why the solution for a while has been to "do nothing",
as Go supports both old and new import paths with/out go.mod. However, now that Go module support has had time to iron out kinks and
is adopted everywhere, it's time for chi to get with the times. Luckily, I've discovered a path forward that will make me happy,
while also not breaking anyone's app who adopted a prior versioning from tags in v2/v3/v4. I've made an experimental release of
v1.5.0 with go.mod silently, and tested it with new and old projects, to ensure the developer experience is preserved, and it's
largely unnoticed. Fortunately, Go's toolchain will check the tags of a repo and consider the "latest" tag the one with go.mod.
However, you can still request a specific older tag such as v4.1.2, and everything will "just work". But new users can just
`go get github.com/go-chi/chi` or `go get github.com/go-chi/chi@latest` and they will get the latest version which contains
go.mod support, which is v1.5.0+. `chi` will not change very much over the years, just like it hasn't changed much from 4 years ago.
Therefore, we will stay on v1.x from here on, starting from v1.5.0. Any breaking changes will bump a "minor" release and
backwards-compatible improvements/fixes will bump a "tiny" release.
For existing projects who want to upgrade to the latest go.mod version, run: `go get -u github.com/go-chi/chi@v1.5.0`,
which will get you on the go.mod version line (as Go's mod cache may still remember v4.x). Brand new systems can run
`go get -u github.com/go-chi/chi` or `go get -u github.com/go-chi/chi@latest` to install chi, which will install v1.5.0+
built with go.mod support.
My apologies to the developers who will disagree with the decisions above, but, hope you'll try it and see it's a very
minor request which is backwards compatible and won't break your existing installations.
Cheers all, happy coding!
---
## v4.1.2 (2020-06-02)
- fix that handles MethodNotAllowed with path variables, thank you @caseyhadden for your contribution
- fix to replace nested wildcards correctly in RoutePattern, thank you @@unmultimedio for your contribution
- History of changes: see https://github.com/go-chi/chi/compare/v4.1.1...v4.1.2
## v4.1.1 (2020-04-16)
- fix for issue https://github.com/go-chi/chi/issues/411 which allows for overlapping regexp
route to the correct handler through a recursive tree search, thanks to @Jahaja for the PR/fix!
- new middleware.RouteHeaders as a simple router for request headers with wildcard support
- History of changes: see https://github.com/go-chi/chi/compare/v4.1.0...v4.1.1
## v4.1.0 (2020-04-1)
- middleware.LogEntry: Write method on interface now passes the response header
and an extra interface type useful for custom logger implementations.
- middleware.WrapResponseWriter: minor fix
- middleware.Recoverer: a bit prettier
- History of changes: see https://github.com/go-chi/chi/compare/v4.0.4...v4.1.0
## v4.0.4 (2020-03-24)
- middleware.Recoverer: new pretty stack trace printing (https://github.com/go-chi/chi/pull/496)
- a few minor improvements and fixes
- History of changes: see https://github.com/go-chi/chi/compare/v4.0.3...v4.0.4
## v4.0.3 (2020-01-09)
- core: fix regexp routing to include default value when param is not matched
- middleware: rewrite of middleware.Compress
- middleware: suppress http.ErrAbortHandler in middleware.Recoverer
- History of changes: see https://github.com/go-chi/chi/compare/v4.0.2...v4.0.3
## v4.0.2 (2019-02-26)
- Minor fixes
- History of changes: see https://github.com/go-chi/chi/compare/v4.0.1...v4.0.2
## v4.0.1 (2019-01-21)
- Fixes issue with compress middleware: #382 #385
- History of changes: see https://github.com/go-chi/chi/compare/v4.0.0...v4.0.1
## v4.0.0 (2019-01-10)
- chi v4 requires Go 1.10.3+ (or Go 1.9.7+) - we have deprecated support for Go 1.7 and 1.8
- router: respond with 404 on router with no routes (#362)
- router: additional check to ensure wildcard is at the end of a url pattern (#333)
- middleware: deprecate use of http.CloseNotifier (#347)
- middleware: fix RedirectSlashes to include query params on redirect (#334)
- History of changes: see https://github.com/go-chi/chi/compare/v3.3.4...v4.0.0
## v3.3.4 (2019-01-07)
- Minor middleware improvements. No changes to core library/router. Moving v3 into its
- own branch as a version of chi for Go 1.7, 1.8, 1.9, 1.10, 1.11
- History of changes: see https://github.com/go-chi/chi/compare/v3.3.3...v3.3.4
## v3.3.3 (2018-08-27)
- Minor release
- See https://github.com/go-chi/chi/compare/v3.3.2...v3.3.3
## v3.3.2 (2017-12-22)
- Support to route trailing slashes on mounted sub-routers (#281)
- middleware: new `ContentCharset` to check matching charsets. Thank you
@csucu for your community contribution!
## v3.3.1 (2017-11-20)
- middleware: new `AllowContentType` handler for explicit whitelist of accepted request Content-Types
- middleware: new `SetHeader` handler for short-hand middleware to set a response header key/value
- Minor bug fixes
## v3.3.0 (2017-10-10)
- New chi.RegisterMethod(method) to add support for custom HTTP methods, see _examples/custom-method for usage
- Deprecated LINK and UNLINK methods from the default list, please use `chi.RegisterMethod("LINK")` and `chi.RegisterMethod("UNLINK")` in an `init()` function
## v3.2.1 (2017-08-31)
- Add new `Match(rctx *Context, method, path string) bool` method to `Routes` interface
and `Mux`. Match searches the mux's routing tree for a handler that matches the method/path
- Add new `RouteMethod` to `*Context`
- Add new `Routes` pointer to `*Context`
- Add new `middleware.GetHead` to route missing HEAD requests to GET handler
- Updated benchmarks (see README)
## v3.1.5 (2017-08-02)
- Setup golint and go vet for the project
- As per golint, we've redefined `func ServerBaseContext(h http.Handler, baseCtx context.Context) http.Handler`
to `func ServerBaseContext(baseCtx context.Context, h http.Handler) http.Handler`
## v3.1.0 (2017-07-10)
- Fix a few minor issues after v3 release
- Move `docgen` sub-pkg to https://github.com/go-chi/docgen
- Move `render` sub-pkg to https://github.com/go-chi/render
- Add new `URLFormat` handler to chi/middleware sub-pkg to make working with url mime
suffixes easier, ie. parsing `/articles/1.json` and `/articles/1.xml`. See comments in
https://github.com/go-chi/chi/blob/master/middleware/url_format.go for example usage.
## v3.0.0 (2017-06-21)
- Major update to chi library with many exciting updates, but also some *breaking changes*
- URL parameter syntax changed from `/:id` to `/{id}` for even more flexible routing, such as
`/articles/{month}-{day}-{year}-{slug}`, `/articles/{id}`, and `/articles/{id}.{ext}` on the
same router
- Support for regexp for routing patterns, in the form of `/{paramKey:regExp}` for example:
`r.Get("/articles/{name:[a-z]+}", h)` and `chi.URLParam(r, "name")`
- Add `Method` and `MethodFunc` to `chi.Router` to allow routing definitions such as
`r.Method("GET", "/", h)` which provides a cleaner interface for custom handlers like
in `_examples/custom-handler`
- Deprecating `mux#FileServer` helper function. Instead, we encourage users to create their
own using file handler with the stdlib, see `_examples/fileserver` for an example
- Add support for LINK/UNLINK http methods via `r.Method()` and `r.MethodFunc()`
- Moved the chi project to its own organization, to allow chi-related community packages to
be easily discovered and supported, at: https://github.com/go-chi
- *NOTE:* please update your import paths to `"github.com/go-chi/chi"`
- *NOTE:* chi v2 is still available at https://github.com/go-chi/chi/tree/v2
## v2.1.0 (2017-03-30)
- Minor improvements and update to the chi core library
- Introduced a brand new `chi/render` sub-package to complete the story of building
APIs to offer a pattern for managing well-defined request / response payloads. Please
check out the updated `_examples/rest` example for how it works.
- Added `MethodNotAllowed(h http.HandlerFunc)` to chi.Router interface
## v2.0.0 (2017-01-06)
- After many months of v2 being in an RC state with many companies and users running it in
production, the inclusion of some improvements to the middlewares, we are very pleased to
announce v2.0.0 of chi.
## v2.0.0-rc1 (2016-07-26)
- Huge update! chi v2 is a large refactor targetting Go 1.7+. As of Go 1.7, the popular
community `"net/context"` package has been included in the standard library as `"context"` and
utilized by `"net/http"` and `http.Request` to managing deadlines, cancelation signals and other
request-scoped values. We're very excited about the new context addition and are proud to
introduce chi v2, a minimal and powerful routing package for building large HTTP services,
with zero external dependencies. Chi focuses on idiomatic design and encourages the use of
stdlib HTTP handlers and middlwares.
- chi v2 deprecates its `chi.Handler` interface and requires `http.Handler` or `http.HandlerFunc`
- chi v2 stores URL routing parameters and patterns in the standard request context: `r.Context()`
- chi v2 lower-level routing context is accessible by `chi.RouteContext(r.Context()) *chi.Context`,
which provides direct access to URL routing parameters, the routing path and the matching
routing patterns.
- Users upgrading from chi v1 to v2, need to:
1. Update the old chi.Handler signature, `func(ctx context.Context, w http.ResponseWriter, r *http.Request)` to
the standard http.Handler: `func(w http.ResponseWriter, r *http.Request)`
2. Use `chi.URLParam(r *http.Request, paramKey string) string`
or `URLParamFromCtx(ctx context.Context, paramKey string) string` to access a url parameter value
## v1.0.0 (2016-07-01)
- Released chi v1 stable https://github.com/go-chi/chi/tree/v1.0.0 for Go 1.6 and older.
## v0.9.0 (2016-03-31)
- Reuse context objects via sync.Pool for zero-allocation routing [#33](https://github.com/go-chi/chi/pull/33)
- BREAKING NOTE: due to subtle API changes, previously `chi.URLParams(ctx)["id"]` used to access url parameters
has changed to: `chi.URLParam(ctx, "id")`
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# Contributing
## Prerequisites
1. [Install Go][go-install].
2. Download the sources and switch the working directory:
```bash
go get -u -d github.com/go-chi/chi
cd $GOPATH/src/github.com/go-chi/chi
```
## Submitting a Pull Request
A typical workflow is:
1. [Fork the repository.][fork] [This tip maybe also helpful.][go-fork-tip]
2. [Create a topic branch.][branch]
3. Add tests for your change.
4. Run `go test`. If your tests pass, return to the step 3.
5. Implement the change and ensure the steps from the previous step pass.
6. Run `goimports -w .`, to ensure the new code conforms to Go formatting guideline.
7. [Add, commit and push your changes.][git-help]
8. [Submit a pull request.][pull-req]
[go-install]: https://golang.org/doc/install
[go-fork-tip]: http://blog.campoy.cat/2014/03/github-and-go-forking-pull-requests-and.html
[fork]: https://help.github.com/articles/fork-a-repo
[branch]: http://learn.github.com/p/branching.html
[git-help]: https://guides.github.com
[pull-req]: https://help.github.com/articles/using-pull-requests
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@@ -1,20 +0,0 @@
Copyright (c) 2015-present Peter Kieltyka (https://github.com/pkieltyka), Google Inc.
MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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all:
@echo "**********************************************************"
@echo "** chi build tool **"
@echo "**********************************************************"
test:
go clean -testcache && $(MAKE) test-router && $(MAKE) test-middleware
test-router:
go test -race -v .
test-middleware:
go test -race -v ./middleware
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package chi
import "net/http"
// Chain returns a Middlewares type from a slice of middleware handlers.
func Chain(middlewares ...func(http.Handler) http.Handler) Middlewares {
return Middlewares(middlewares)
}
// Handler builds and returns a http.Handler from the chain of middlewares,
// with `h http.Handler` as the final handler.
func (mws Middlewares) Handler(h http.Handler) http.Handler {
return &ChainHandler{mws, h, chain(mws, h)}
}
// HandlerFunc builds and returns a http.Handler from the chain of middlewares,
// with `h http.Handler` as the final handler.
func (mws Middlewares) HandlerFunc(h http.HandlerFunc) http.Handler {
return &ChainHandler{mws, h, chain(mws, h)}
}
// ChainHandler is a http.Handler with support for handler composition and
// execution.
type ChainHandler struct {
Middlewares Middlewares
Endpoint http.Handler
chain http.Handler
}
func (c *ChainHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
c.chain.ServeHTTP(w, r)
}
// chain builds a http.Handler composed of an inline middleware stack and endpoint
// handler in the order they are passed.
func chain(middlewares []func(http.Handler) http.Handler, endpoint http.Handler) http.Handler {
// Return ahead of time if there aren't any middlewares for the chain
if len(middlewares) == 0 {
return endpoint
}
// Wrap the end handler with the middleware chain
h := middlewares[len(middlewares)-1](endpoint)
for i := len(middlewares) - 2; i >= 0; i-- {
h = middlewares[i](h)
}
return h
}
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//
// Package chi is a small, idiomatic and composable router for building HTTP services.
//
// chi requires Go 1.10 or newer.
//
// Example:
// package main
//
// import (
// "net/http"
//
// "github.com/go-chi/chi"
// "github.com/go-chi/chi/middleware"
// )
//
// func main() {
// r := chi.NewRouter()
// r.Use(middleware.Logger)
// r.Use(middleware.Recoverer)
//
// r.Get("/", func(w http.ResponseWriter, r *http.Request) {
// w.Write([]byte("root."))
// })
//
// http.ListenAndServe(":3333", r)
// }
//
// See github.com/go-chi/chi/_examples/ for more in-depth examples.
//
// URL patterns allow for easy matching of path components in HTTP
// requests. The matching components can then be accessed using
// chi.URLParam(). All patterns must begin with a slash.
//
// A simple named placeholder {name} matches any sequence of characters
// up to the next / or the end of the URL. Trailing slashes on paths must
// be handled explicitly.
//
// A placeholder with a name followed by a colon allows a regular
// expression match, for example {number:\\d+}. The regular expression
// syntax is Go's normal regexp RE2 syntax, except that regular expressions
// including { or } are not supported, and / will never be
// matched. An anonymous regexp pattern is allowed, using an empty string
// before the colon in the placeholder, such as {:\\d+}
//
// The special placeholder of asterisk matches the rest of the requested
// URL. Any trailing characters in the pattern are ignored. This is the only
// placeholder which will match / characters.
//
// Examples:
// "/user/{name}" matches "/user/jsmith" but not "/user/jsmith/info" or "/user/jsmith/"
// "/user/{name}/info" matches "/user/jsmith/info"
// "/page/*" matches "/page/intro/latest"
// "/page/*/index" also matches "/page/intro/latest"
// "/date/{yyyy:\\d\\d\\d\\d}/{mm:\\d\\d}/{dd:\\d\\d}" matches "/date/2017/04/01"
//
package chi
import "net/http"
// NewRouter returns a new Mux object that implements the Router interface.
func NewRouter() *Mux {
return NewMux()
}
// Router consisting of the core routing methods used by chi's Mux,
// using only the standard net/http.
type Router interface {
http.Handler
Routes
// Use appends one or more middlewares onto the Router stack.
Use(middlewares ...func(http.Handler) http.Handler)
// With adds inline middlewares for an endpoint handler.
With(middlewares ...func(http.Handler) http.Handler) Router
// Group adds a new inline-Router along the current routing
// path, with a fresh middleware stack for the inline-Router.
Group(fn func(r Router)) Router
// Route mounts a sub-Router along a `pattern`` string.
Route(pattern string, fn func(r Router)) Router
// Mount attaches another http.Handler along ./pattern/*
Mount(pattern string, h http.Handler)
// Handle and HandleFunc adds routes for `pattern` that matches
// all HTTP methods.
Handle(pattern string, h http.Handler)
HandleFunc(pattern string, h http.HandlerFunc)
// Method and MethodFunc adds routes for `pattern` that matches
// the `method` HTTP method.
Method(method, pattern string, h http.Handler)
MethodFunc(method, pattern string, h http.HandlerFunc)
// HTTP-method routing along `pattern`
Connect(pattern string, h http.HandlerFunc)
Delete(pattern string, h http.HandlerFunc)
Get(pattern string, h http.HandlerFunc)
Head(pattern string, h http.HandlerFunc)
Options(pattern string, h http.HandlerFunc)
Patch(pattern string, h http.HandlerFunc)
Post(pattern string, h http.HandlerFunc)
Put(pattern string, h http.HandlerFunc)
Trace(pattern string, h http.HandlerFunc)
// NotFound defines a handler to respond whenever a route could
// not be found.
NotFound(h http.HandlerFunc)
// MethodNotAllowed defines a handler to respond whenever a method is
// not allowed.
MethodNotAllowed(h http.HandlerFunc)
}
// Routes interface adds two methods for router traversal, which is also
// used by the `docgen` subpackage to generation documentation for Routers.
type Routes interface {
// Routes returns the routing tree in an easily traversable structure.
Routes() []Route
// Middlewares returns the list of middlewares in use by the router.
Middlewares() Middlewares
// Match searches the routing tree for a handler that matches
// the method/path - similar to routing a http request, but without
// executing the handler thereafter.
Match(rctx *Context, method, path string) bool
}
// Middlewares type is a slice of standard middleware handlers with methods
// to compose middleware chains and http.Handler's.
type Middlewares []func(http.Handler) http.Handler
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package chi
import (
"context"
"net/http"
"strings"
)
// URLParam returns the url parameter from a http.Request object.
func URLParam(r *http.Request, key string) string {
if rctx := RouteContext(r.Context()); rctx != nil {
return rctx.URLParam(key)
}
return ""
}
// URLParamFromCtx returns the url parameter from a http.Request Context.
func URLParamFromCtx(ctx context.Context, key string) string {
if rctx := RouteContext(ctx); rctx != nil {
return rctx.URLParam(key)
}
return ""
}
// RouteContext returns chi's routing Context object from a
// http.Request Context.
func RouteContext(ctx context.Context) *Context {
val, _ := ctx.Value(RouteCtxKey).(*Context)
return val
}
// NewRouteContext returns a new routing Context object.
func NewRouteContext() *Context {
return &Context{}
}
var (
// RouteCtxKey is the context.Context key to store the request context.
RouteCtxKey = &contextKey{"RouteContext"}
)
// Context is the default routing context set on the root node of a
// request context to track route patterns, URL parameters and
// an optional routing path.
type Context struct {
Routes Routes
// Routing path/method override used during the route search.
// See Mux#routeHTTP method.
RoutePath string
RouteMethod string
// Routing pattern stack throughout the lifecycle of the request,
// across all connected routers. It is a record of all matching
// patterns across a stack of sub-routers.
RoutePatterns []string
// URLParams are the stack of routeParams captured during the
// routing lifecycle across a stack of sub-routers.
URLParams RouteParams
// The endpoint routing pattern that matched the request URI path
// or `RoutePath` of the current sub-router. This value will update
// during the lifecycle of a request passing through a stack of
// sub-routers.
routePattern string
// Route parameters matched for the current sub-router. It is
// intentionally unexported so it cant be tampered.
routeParams RouteParams
// methodNotAllowed hint
methodNotAllowed bool
// parentCtx is the parent of this one, for using Context as a
// context.Context directly. This is an optimization that saves
// 1 allocation.
parentCtx context.Context
}
// Reset a routing context to its initial state.
func (x *Context) Reset() {
x.Routes = nil
x.RoutePath = ""
x.RouteMethod = ""
x.RoutePatterns = x.RoutePatterns[:0]
x.URLParams.Keys = x.URLParams.Keys[:0]
x.URLParams.Values = x.URLParams.Values[:0]
x.routePattern = ""
x.routeParams.Keys = x.routeParams.Keys[:0]
x.routeParams.Values = x.routeParams.Values[:0]
x.methodNotAllowed = false
x.parentCtx = nil
}
// URLParam returns the corresponding URL parameter value from the request
// routing context.
func (x *Context) URLParam(key string) string {
for k := len(x.URLParams.Keys) - 1; k >= 0; k-- {
if x.URLParams.Keys[k] == key {
return x.URLParams.Values[k]
}
}
return ""
}
// RoutePattern builds the routing pattern string for the particular
// request, at the particular point during routing. This means, the value
// will change throughout the execution of a request in a router. That is
// why its advised to only use this value after calling the next handler.
//
// For example,
//
// func Instrument(next http.Handler) http.Handler {
// return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// next.ServeHTTP(w, r)
// routePattern := chi.RouteContext(r.Context()).RoutePattern()
// measure(w, r, routePattern)
// })
// }
func (x *Context) RoutePattern() string {
routePattern := strings.Join(x.RoutePatterns, "")
return replaceWildcards(routePattern)
}
// replaceWildcards takes a route pattern and recursively replaces all
// occurrences of "/*/" to "/".
func replaceWildcards(p string) string {
if strings.Contains(p, "/*/") {
return replaceWildcards(strings.Replace(p, "/*/", "/", -1))
}
return p
}
// RouteParams is a structure to track URL routing parameters efficiently.
type RouteParams struct {
Keys, Values []string
}
// Add will append a URL parameter to the end of the route param
func (s *RouteParams) Add(key, value string) {
s.Keys = append(s.Keys, key)
s.Values = append(s.Values, value)
}
// contextKey is a value for use with context.WithValue. It's used as
// a pointer so it fits in an interface{} without allocation. This technique
// for defining context keys was copied from Go 1.7's new use of context in net/http.
type contextKey struct {
name string
}
func (k *contextKey) String() string {
return "chi context value " + k.name
}
-3
View File
@@ -1,3 +0,0 @@
module github.com/go-chi/chi
go 1.16
-479
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-866
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File diff suppressed because it is too large Load Diff
@@ -4,7 +4,7 @@ import (
"net/http"
"path"
"github.com/go-chi/chi"
"github.com/go-chi/chi/v5"
)
// CleanPath middleware will clean out double slash mistakes from a user's request path.
@@ -45,7 +45,6 @@ func Compress(level int, types ...string) func(next http.Handler) http.Handler {
// Compressor represents a set of encoding configurations.
type Compressor struct {
level int // The compression level.
// The mapping of encoder names to encoder functions.
encoders map[string]EncoderFunc
// The mapping of pooled encoders to pools.
@@ -55,6 +54,7 @@ type Compressor struct {
allowedWildcards map[string]struct{}
// The list of encoders in order of decreasing precedence.
encodingPrecedence []string
level int // The compression level.
}
// NewCompressor creates a new Compressor that will handle encoding responses.
@@ -271,9 +271,9 @@ type compressResponseWriter struct {
// The streaming encoder writer to be used if there is one. Otherwise,
// this is just the normal writer.
w io.Writer
encoding string
contentTypes map[string]struct{}
contentWildcards map[string]struct{}
encoding string
wroteHeader bool
compressable bool
}
@@ -3,7 +3,7 @@ package middleware
import (
"net/http"
"github.com/go-chi/chi"
"github.com/go-chi/chi/v5"
)
// GetHead automatically route undefined HEAD requests to GET handlers.
+20
View File
@@ -0,0 +1,20 @@
package middleware
import (
"net/http"
"strings"
)
// PageRoute is a simple middleware which allows you to route a static GET request
// at the middleware stack level.
func PageRoute(path string, handler http.Handler) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.Method == "GET" && strings.EqualFold(r.URL.Path, path) {
handler.ServeHTTP(w, r)
return
}
next.ServeHTTP(w, r)
})
}
}
+16
View File
@@ -0,0 +1,16 @@
package middleware
import (
"net/http"
"strings"
)
// PathRewrite is a simple middleware which allows you to rewrite the request URL path.
func PathRewrite(old, new string) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.URL.Path = strings.Replace(r.URL.Path, old, new, 1)
next.ServeHTTP(w, r)
})
}
}
@@ -6,7 +6,7 @@ import (
"net/http"
"net/http/pprof"
"github.com/go-chi/chi"
"github.com/go-chi/chi/v5"
)
// Profiler is a convenient subrouter used for mounting net/http/pprof. ie.
@@ -36,6 +36,13 @@ func Profiler() http.Handler {
r.HandleFunc("/pprof/trace", pprof.Trace)
r.HandleFunc("/vars", expVars)
r.Handle("/pprof/goroutine", pprof.Handler("goroutine"))
r.Handle("/pprof/threadcreate", pprof.Handler("threadcreate"))
r.Handle("/pprof/mutex", pprof.Handler("mutex"))
r.Handle("/pprof/heap", pprof.Handler("heap"))
r.Handle("/pprof/block", pprof.Handler("block"))
r.Handle("/pprof/allocs", pprof.Handler("allocs"))
return r
}

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