Update chi/middleware to chi/v5/middleware (#17888)
Fix #17880 Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
zeripath
GitHub
parent
4646c7c52d
commit
957c3fcb59
42 changed files with 128 additions and 2572 deletions
1
go.mod
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go.mod
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@ -36,7 +36,6 @@ require (
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github.com/ethantkoenig/rupture v1.0.0
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github.com/ethantkoenig/rupture v1.0.0
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github.com/gliderlabs/ssh v0.3.3
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github.com/gliderlabs/ssh v0.3.3
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github.com/go-asn1-ber/asn1-ber v1.5.3 // indirect
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github.com/go-asn1-ber/asn1-ber v1.5.3 // indirect
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github.com/go-chi/chi v1.5.4
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github.com/go-chi/chi/v5 v5.0.4
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github.com/go-chi/chi/v5 v5.0.4
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github.com/go-chi/cors v1.2.0
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github.com/go-chi/cors v1.2.0
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github.com/go-enry/go-enry/v2 v2.7.1
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github.com/go-enry/go-enry/v2 v2.7.1
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2
go.sum
2
go.sum
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@ -319,8 +319,6 @@ github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31/go.mod h1:Ogl1T
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github.com/go-asn1-ber/asn1-ber v1.5.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
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github.com/go-asn1-ber/asn1-ber v1.5.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
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github.com/go-asn1-ber/asn1-ber v1.5.3 h1:u7utq56RUFiynqUzgVMFDymapcOtQ/MZkh3H4QYkxag=
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github.com/go-asn1-ber/asn1-ber v1.5.3 h1:u7utq56RUFiynqUzgVMFDymapcOtQ/MZkh3H4QYkxag=
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github.com/go-asn1-ber/asn1-ber v1.5.3/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
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github.com/go-asn1-ber/asn1-ber v1.5.3/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
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github.com/go-chi/chi v1.5.4 h1:QHdzF2szwjqVV4wmByUnTcsbIg7UGaQ0tPF2t5GcAIs=
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github.com/go-chi/chi v1.5.4/go.mod h1:uaf8YgoFazUOkPBG7fxPftUylNumIev9awIWOENIuEg=
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github.com/go-chi/chi/v5 v5.0.1/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
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github.com/go-chi/chi/v5 v5.0.1/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
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github.com/go-chi/chi/v5 v5.0.4 h1:5e494iHzsYBiyXQAHHuI4tyJS9M3V84OuX3ufIIGHFo=
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github.com/go-chi/chi/v5 v5.0.4 h1:5e494iHzsYBiyXQAHHuI4tyJS9M3V84OuX3ufIIGHFo=
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github.com/go-chi/chi/v5 v5.0.4/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
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github.com/go-chi/chi/v5 v5.0.4/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
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@ -15,7 +15,7 @@ import (
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/setting"
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"github.com/chi-middleware/proxy"
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"github.com/chi-middleware/proxy"
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"github.com/go-chi/chi/middleware"
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"github.com/go-chi/chi/v5/middleware"
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)
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)
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// Middlewares returns common middlewares
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// Middlewares returns common middlewares
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@ -40,7 +40,7 @@ import (
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"gitea.com/go-chi/captcha"
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"gitea.com/go-chi/captcha"
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"github.com/NYTimes/gziphandler"
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"github.com/NYTimes/gziphandler"
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"github.com/go-chi/chi/middleware"
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"github.com/go-chi/chi/v5/middleware"
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"github.com/go-chi/cors"
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"github.com/go-chi/cors"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/tstranex/u2f"
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"github.com/tstranex/u2f"
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3
vendor/github.com/go-chi/chi/.gitignore
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vendor/github.com/go-chi/chi/.gitignore
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.idea
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*.sw?
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.vscode
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269
vendor/github.com/go-chi/chi/CHANGELOG.md
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@ -1,269 +0,0 @@
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# Changelog
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## v1.5.4 (2021-02-27)
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- Undo prior retraction in v1.5.3 as we prepare for v5.0.0 release
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- History of changes: see https://github.com/go-chi/chi/compare/v1.5.3...v1.5.4
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## v1.5.3 (2021-02-21)
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- Update go.mod to go 1.16 with new retract directive marking all versions without prior go.mod support
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- History of changes: see https://github.com/go-chi/chi/compare/v1.5.2...v1.5.3
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## v1.5.2 (2021-02-10)
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- Reverting allocation optimization as a precaution as go test -race fails.
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- Minor improvements, see history below
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- History of changes: see https://github.com/go-chi/chi/compare/v1.5.1...v1.5.2
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## v1.5.1 (2020-12-06)
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- Performance improvement: removing 1 allocation by foregoing context.WithValue, thank you @bouk for
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your contribution (https://github.com/go-chi/chi/pull/555). Note: new benchmarks posted in README.
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- `middleware.CleanPath`: new middleware that clean's request path of double slashes
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- deprecate & remove `chi.ServerBaseContext` in favour of stdlib `http.Server#BaseContext`
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- plus other tiny improvements, see full commit history below
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- History of changes: see https://github.com/go-chi/chi/compare/v4.1.2...v1.5.1
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## v1.5.0 (2020-11-12) - now with go.mod support
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`chi` dates back to 2016 with it's original implementation as one of the first routers to adopt the newly introduced
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context.Context api to the stdlib -- set out to design a router that is faster, more modular and simpler than anything
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else out there -- while not introducing any custom handler types or dependencies. Today, `chi` still has zero dependencies,
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and in many ways is future proofed from changes, given it's minimal nature. Between versions, chi's iterations have been very
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incremental, with the architecture and api being the same today as it was originally designed in 2016. For this reason it
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makes chi a pretty easy project to maintain, as well thanks to the many amazing community contributions over the years
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to who all help make chi better (total of 86 contributors to date -- thanks all!).
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Chi has been an labour of love, art and engineering, with the goals to offer beautiful ergonomics, flexibility, performance
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and simplicity when building HTTP services with Go. I've strived to keep the router very minimal in surface area / code size,
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and always improving the code wherever possible -- and as of today the `chi` package is just 1082 lines of code (not counting
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middlewares, which are all optional). As well, I don't have the exact metrics, but from my analysis and email exchanges from
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companies and developers, chi is used by thousands of projects around the world -- thank you all as there is no better form of
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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 :)
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For me, the asthetics of chi's code and usage are very important. With the introduction of Go's module support
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(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
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of "github.com/go-chi/chi/v4", leading to the lengthy discussion at https://github.com/go-chi/chi/issues/462.
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Haha, to some, you may be scratching your head why I've spent > 1 year stalling to adopt "/vXX" convention in the import
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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,
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aesthetics and simplicity. It just doesn't feel good to me given chi's simple nature -- I do not foresee a "v5" or "v6",
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and upgrading between versions in the future will also be just incremental.
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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",
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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
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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,
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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
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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
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largely unnoticed. Fortunately, Go's toolchain will check the tags of a repo and consider the "latest" tag the one with go.mod.
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However, you can still request a specific older tag such as v4.1.2, and everything will "just work". But new users can just
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`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
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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.
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Therefore, we will stay on v1.x from here on, starting from v1.5.0. Any breaking changes will bump a "minor" release and
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backwards-compatible improvements/fixes will bump a "tiny" release.
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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`,
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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
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`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+
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built with go.mod support.
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My apologies to the developers who will disagree with the decisions above, but, hope you'll try it and see it's a very
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minor request which is backwards compatible and won't break your existing installations.
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Cheers all, happy coding!
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---
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## v4.1.2 (2020-06-02)
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- fix that handles MethodNotAllowed with path variables, thank you @caseyhadden for your contribution
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- fix to replace nested wildcards correctly in RoutePattern, thank you @@unmultimedio for your contribution
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- History of changes: see https://github.com/go-chi/chi/compare/v4.1.1...v4.1.2
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## v4.1.1 (2020-04-16)
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- fix for issue https://github.com/go-chi/chi/issues/411 which allows for overlapping regexp
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route to the correct handler through a recursive tree search, thanks to @Jahaja for the PR/fix!
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- new middleware.RouteHeaders as a simple router for request headers with wildcard support
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- History of changes: see https://github.com/go-chi/chi/compare/v4.1.0...v4.1.1
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## v4.1.0 (2020-04-1)
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- middleware.LogEntry: Write method on interface now passes the response header
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and an extra interface type useful for custom logger implementations.
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- middleware.WrapResponseWriter: minor fix
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- middleware.Recoverer: a bit prettier
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- History of changes: see https://github.com/go-chi/chi/compare/v4.0.4...v4.1.0
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## v4.0.4 (2020-03-24)
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- middleware.Recoverer: new pretty stack trace printing (https://github.com/go-chi/chi/pull/496)
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- a few minor improvements and fixes
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- History of changes: see https://github.com/go-chi/chi/compare/v4.0.3...v4.0.4
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## v4.0.3 (2020-01-09)
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- core: fix regexp routing to include default value when param is not matched
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- middleware: rewrite of middleware.Compress
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- middleware: suppress http.ErrAbortHandler in middleware.Recoverer
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- History of changes: see https://github.com/go-chi/chi/compare/v4.0.2...v4.0.3
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## v4.0.2 (2019-02-26)
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- Minor fixes
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- History of changes: see https://github.com/go-chi/chi/compare/v4.0.1...v4.0.2
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## v4.0.1 (2019-01-21)
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- Fixes issue with compress middleware: #382 #385
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- History of changes: see https://github.com/go-chi/chi/compare/v4.0.0...v4.0.1
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## v4.0.0 (2019-01-10)
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- chi v4 requires Go 1.10.3+ (or Go 1.9.7+) - we have deprecated support for Go 1.7 and 1.8
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- router: respond with 404 on router with no routes (#362)
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- router: additional check to ensure wildcard is at the end of a url pattern (#333)
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- middleware: deprecate use of http.CloseNotifier (#347)
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- middleware: fix RedirectSlashes to include query params on redirect (#334)
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- History of changes: see https://github.com/go-chi/chi/compare/v3.3.4...v4.0.0
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## v3.3.4 (2019-01-07)
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- Minor middleware improvements. No changes to core library/router. Moving v3 into its
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- own branch as a version of chi for Go 1.7, 1.8, 1.9, 1.10, 1.11
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- History of changes: see https://github.com/go-chi/chi/compare/v3.3.3...v3.3.4
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## v3.3.3 (2018-08-27)
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- Minor release
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- See https://github.com/go-chi/chi/compare/v3.3.2...v3.3.3
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## v3.3.2 (2017-12-22)
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- Support to route trailing slashes on mounted sub-routers (#281)
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- middleware: new `ContentCharset` to check matching charsets. Thank you
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@csucu for your community contribution!
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## v3.3.1 (2017-11-20)
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- middleware: new `AllowContentType` handler for explicit whitelist of accepted request Content-Types
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- middleware: new `SetHeader` handler for short-hand middleware to set a response header key/value
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- Minor bug fixes
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## v3.3.0 (2017-10-10)
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- New chi.RegisterMethod(method) to add support for custom HTTP methods, see _examples/custom-method for usage
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- Deprecated LINK and UNLINK methods from the default list, please use `chi.RegisterMethod("LINK")` and `chi.RegisterMethod("UNLINK")` in an `init()` function
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## v3.2.1 (2017-08-31)
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- Add new `Match(rctx *Context, method, path string) bool` method to `Routes` interface
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and `Mux`. Match searches the mux's routing tree for a handler that matches the method/path
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- Add new `RouteMethod` to `*Context`
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- Add new `Routes` pointer to `*Context`
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- Add new `middleware.GetHead` to route missing HEAD requests to GET handler
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- Updated benchmarks (see README)
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## v3.1.5 (2017-08-02)
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- Setup golint and go vet for the project
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- As per golint, we've redefined `func ServerBaseContext(h http.Handler, baseCtx context.Context) http.Handler`
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to `func ServerBaseContext(baseCtx context.Context, h http.Handler) http.Handler`
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## v3.1.0 (2017-07-10)
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- Fix a few minor issues after v3 release
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- Move `docgen` sub-pkg to https://github.com/go-chi/docgen
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- Move `render` sub-pkg to https://github.com/go-chi/render
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- Add new `URLFormat` handler to chi/middleware sub-pkg to make working with url mime
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suffixes easier, ie. parsing `/articles/1.json` and `/articles/1.xml`. See comments in
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https://github.com/go-chi/chi/blob/master/middleware/url_format.go for example usage.
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## v3.0.0 (2017-06-21)
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- Major update to chi library with many exciting updates, but also some *breaking changes*
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- URL parameter syntax changed from `/:id` to `/{id}` for even more flexible routing, such as
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`/articles/{month}-{day}-{year}-{slug}`, `/articles/{id}`, and `/articles/{id}.{ext}` on the
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same router
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- Support for regexp for routing patterns, in the form of `/{paramKey:regExp}` for example:
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`r.Get("/articles/{name:[a-z]+}", h)` and `chi.URLParam(r, "name")`
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- Add `Method` and `MethodFunc` to `chi.Router` to allow routing definitions such as
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`r.Method("GET", "/", h)` which provides a cleaner interface for custom handlers like
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in `_examples/custom-handler`
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- Deprecating `mux#FileServer` helper function. Instead, we encourage users to create their
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own using file handler with the stdlib, see `_examples/fileserver` for an example
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- Add support for LINK/UNLINK http methods via `r.Method()` and `r.MethodFunc()`
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- Moved the chi project to its own organization, to allow chi-related community packages to
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be easily discovered and supported, at: https://github.com/go-chi
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- *NOTE:* please update your import paths to `"github.com/go-chi/chi"`
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||||||
- *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")`
|
|
||||||
31
vendor/github.com/go-chi/chi/CONTRIBUTING.md
generated
vendored
31
vendor/github.com/go-chi/chi/CONTRIBUTING.md
generated
vendored
|
|
@ -1,31 +0,0 @@
|
||||||
# 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
|
|
||||||
20
vendor/github.com/go-chi/chi/LICENSE
generated
vendored
20
vendor/github.com/go-chi/chi/LICENSE
generated
vendored
|
|
@ -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.
|
|
||||||
14
vendor/github.com/go-chi/chi/Makefile
generated
vendored
14
vendor/github.com/go-chi/chi/Makefile
generated
vendored
|
|
@ -1,14 +0,0 @@
|
||||||
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
|
|
||||||
511
vendor/github.com/go-chi/chi/README.md
generated
vendored
511
vendor/github.com/go-chi/chi/README.md
generated
vendored
|
|
@ -1,511 +0,0 @@
|
||||||
# <img alt="chi" src="https://cdn.rawgit.com/go-chi/chi/master/_examples/chi.svg" width="220" />
|
|
||||||
|
|
||||||
|
|
||||||
[![GoDoc Widget]][GoDoc] [![Travis Widget]][Travis]
|
|
||||||
|
|
||||||
`chi` is a lightweight, idiomatic and composable router for building Go HTTP services. It's
|
|
||||||
especially good at helping you write large REST API services that are kept maintainable as your
|
|
||||||
project grows and changes. `chi` is built on the new `context` package introduced in Go 1.7 to
|
|
||||||
handle signaling, cancelation and request-scoped values across a handler chain.
|
|
||||||
|
|
||||||
The focus of the project has been to seek out an elegant and comfortable design for writing
|
|
||||||
REST API servers, written during the development of the Pressly API service that powers our
|
|
||||||
public API service, which in turn powers all of our client-side applications.
|
|
||||||
|
|
||||||
The key considerations of chi's design are: project structure, maintainability, standard http
|
|
||||||
handlers (stdlib-only), developer productivity, and deconstructing a large system into many small
|
|
||||||
parts. The core router `github.com/go-chi/chi` is quite small (less than 1000 LOC), but we've also
|
|
||||||
included some useful/optional subpackages: [middleware](/middleware), [render](https://github.com/go-chi/render)
|
|
||||||
and [docgen](https://github.com/go-chi/docgen). We hope you enjoy it too!
|
|
||||||
|
|
||||||
## Install
|
|
||||||
|
|
||||||
`go get -u github.com/go-chi/chi`
|
|
||||||
|
|
||||||
|
|
||||||
## Features
|
|
||||||
|
|
||||||
* **Lightweight** - cloc'd in ~1000 LOC for the chi router
|
|
||||||
* **Fast** - yes, see [benchmarks](#benchmarks)
|
|
||||||
* **100% compatible with net/http** - use any http or middleware pkg in the ecosystem that is also compatible with `net/http`
|
|
||||||
* **Designed for modular/composable APIs** - middlewares, inline middlewares, route groups and sub-router mounting
|
|
||||||
* **Context control** - built on new `context` package, providing value chaining, cancellations and timeouts
|
|
||||||
* **Robust** - in production at Pressly, CloudFlare, Heroku, 99Designs, and many others (see [discussion](https://github.com/go-chi/chi/issues/91))
|
|
||||||
* **Doc generation** - `docgen` auto-generates routing documentation from your source to JSON or Markdown
|
|
||||||
* **Go.mod support** - v1.x of chi (starting from v1.5.0), now has go.mod support (see [CHANGELOG](https://github.com/go-chi/chi/blob/master/CHANGELOG.md#v150-2020-11-12---now-with-gomod-support))
|
|
||||||
* **No external dependencies** - plain ol' Go stdlib + net/http
|
|
||||||
|
|
||||||
|
|
||||||
## Examples
|
|
||||||
|
|
||||||
See [_examples/](https://github.com/go-chi/chi/blob/master/_examples/) for a variety of examples.
|
|
||||||
|
|
||||||
|
|
||||||
**As easy as:**
|
|
||||||
|
|
||||||
```go
|
|
||||||
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.Get("/", func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
w.Write([]byte("welcome"))
|
|
||||||
})
|
|
||||||
http.ListenAndServe(":3000", r)
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
**REST Preview:**
|
|
||||||
|
|
||||||
Here is a little preview of how routing looks like with chi. Also take a look at the generated routing docs
|
|
||||||
in JSON ([routes.json](https://github.com/go-chi/chi/blob/master/_examples/rest/routes.json)) and in
|
|
||||||
Markdown ([routes.md](https://github.com/go-chi/chi/blob/master/_examples/rest/routes.md)).
|
|
||||||
|
|
||||||
I highly recommend reading the source of the [examples](https://github.com/go-chi/chi/blob/master/_examples/) listed
|
|
||||||
above, they will show you all the features of chi and serve as a good form of documentation.
|
|
||||||
|
|
||||||
```go
|
|
||||||
import (
|
|
||||||
//...
|
|
||||||
"context"
|
|
||||||
"github.com/go-chi/chi"
|
|
||||||
"github.com/go-chi/chi/middleware"
|
|
||||||
)
|
|
||||||
|
|
||||||
func main() {
|
|
||||||
r := chi.NewRouter()
|
|
||||||
|
|
||||||
// A good base middleware stack
|
|
||||||
r.Use(middleware.RequestID)
|
|
||||||
r.Use(middleware.RealIP)
|
|
||||||
r.Use(middleware.Logger)
|
|
||||||
r.Use(middleware.Recoverer)
|
|
||||||
|
|
||||||
// Set a timeout value on the request context (ctx), that will signal
|
|
||||||
// through ctx.Done() that the request has timed out and further
|
|
||||||
// processing should be stopped.
|
|
||||||
r.Use(middleware.Timeout(60 * time.Second))
|
|
||||||
|
|
||||||
r.Get("/", func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
w.Write([]byte("hi"))
|
|
||||||
})
|
|
||||||
|
|
||||||
// RESTy routes for "articles" resource
|
|
||||||
r.Route("/articles", func(r chi.Router) {
|
|
||||||
r.With(paginate).Get("/", listArticles) // GET /articles
|
|
||||||
r.With(paginate).Get("/{month}-{day}-{year}", listArticlesByDate) // GET /articles/01-16-2017
|
|
||||||
|
|
||||||
r.Post("/", createArticle) // POST /articles
|
|
||||||
r.Get("/search", searchArticles) // GET /articles/search
|
|
||||||
|
|
||||||
// Regexp url parameters:
|
|
||||||
r.Get("/{articleSlug:[a-z-]+}", getArticleBySlug) // GET /articles/home-is-toronto
|
|
||||||
|
|
||||||
// Subrouters:
|
|
||||||
r.Route("/{articleID}", func(r chi.Router) {
|
|
||||||
r.Use(ArticleCtx)
|
|
||||||
r.Get("/", getArticle) // GET /articles/123
|
|
||||||
r.Put("/", updateArticle) // PUT /articles/123
|
|
||||||
r.Delete("/", deleteArticle) // DELETE /articles/123
|
|
||||||
})
|
|
||||||
})
|
|
||||||
|
|
||||||
// Mount the admin sub-router
|
|
||||||
r.Mount("/admin", adminRouter())
|
|
||||||
|
|
||||||
http.ListenAndServe(":3333", r)
|
|
||||||
}
|
|
||||||
|
|
||||||
func ArticleCtx(next http.Handler) http.Handler {
|
|
||||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
articleID := chi.URLParam(r, "articleID")
|
|
||||||
article, err := dbGetArticle(articleID)
|
|
||||||
if err != nil {
|
|
||||||
http.Error(w, http.StatusText(404), 404)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
ctx := context.WithValue(r.Context(), "article", article)
|
|
||||||
next.ServeHTTP(w, r.WithContext(ctx))
|
|
||||||
})
|
|
||||||
}
|
|
||||||
|
|
||||||
func getArticle(w http.ResponseWriter, r *http.Request) {
|
|
||||||
ctx := r.Context()
|
|
||||||
article, ok := ctx.Value("article").(*Article)
|
|
||||||
if !ok {
|
|
||||||
http.Error(w, http.StatusText(422), 422)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
w.Write([]byte(fmt.Sprintf("title:%s", article.Title)))
|
|
||||||
}
|
|
||||||
|
|
||||||
// A completely separate router for administrator routes
|
|
||||||
func adminRouter() http.Handler {
|
|
||||||
r := chi.NewRouter()
|
|
||||||
r.Use(AdminOnly)
|
|
||||||
r.Get("/", adminIndex)
|
|
||||||
r.Get("/accounts", adminListAccounts)
|
|
||||||
return r
|
|
||||||
}
|
|
||||||
|
|
||||||
func AdminOnly(next http.Handler) http.Handler {
|
|
||||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
ctx := r.Context()
|
|
||||||
perm, ok := ctx.Value("acl.permission").(YourPermissionType)
|
|
||||||
if !ok || !perm.IsAdmin() {
|
|
||||||
http.Error(w, http.StatusText(403), 403)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
next.ServeHTTP(w, r)
|
|
||||||
})
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Router interface
|
|
||||||
|
|
||||||
chi's router is based on a kind of [Patricia Radix trie](https://en.wikipedia.org/wiki/Radix_tree).
|
|
||||||
The router is fully compatible with `net/http`.
|
|
||||||
|
|
||||||
Built on top of the tree is the `Router` interface:
|
|
||||||
|
|
||||||
```go
|
|
||||||
// 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 github.com/go-chi/docgen package to generate 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
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
Each routing method accepts a URL `pattern` and chain of `handlers`. The URL pattern
|
|
||||||
supports named params (ie. `/users/{userID}`) and wildcards (ie. `/admin/*`). URL parameters
|
|
||||||
can be fetched at runtime by calling `chi.URLParam(r, "userID")` for named parameters
|
|
||||||
and `chi.URLParam(r, "*")` for a wildcard parameter.
|
|
||||||
|
|
||||||
|
|
||||||
### Middleware handlers
|
|
||||||
|
|
||||||
chi's middlewares are just stdlib net/http middleware handlers. There is nothing special
|
|
||||||
about them, which means the router and all the tooling is designed to be compatible and
|
|
||||||
friendly with any middleware in the community. This offers much better extensibility and reuse
|
|
||||||
of packages and is at the heart of chi's purpose.
|
|
||||||
|
|
||||||
Here is an example of a standard net/http middleware where we assign a context key `"user"`
|
|
||||||
the value of `"123"`. This middleware sets a hypothetical user identifier on the request
|
|
||||||
context and calls the next handler in the chain.
|
|
||||||
|
|
||||||
```go
|
|
||||||
// HTTP middleware setting a value on the request context
|
|
||||||
func MyMiddleware(next http.Handler) http.Handler {
|
|
||||||
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
// create new context from `r` request context, and assign key `"user"`
|
|
||||||
// to value of `"123"`
|
|
||||||
ctx := context.WithValue(r.Context(), "user", "123")
|
|
||||||
|
|
||||||
// call the next handler in the chain, passing the response writer and
|
|
||||||
// the updated request object with the new context value.
|
|
||||||
//
|
|
||||||
// note: context.Context values are nested, so any previously set
|
|
||||||
// values will be accessible as well, and the new `"user"` key
|
|
||||||
// will be accessible from this point forward.
|
|
||||||
next.ServeHTTP(w, r.WithContext(ctx))
|
|
||||||
})
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### Request handlers
|
|
||||||
|
|
||||||
chi uses standard net/http request handlers. This little snippet is an example of a http.Handler
|
|
||||||
func that reads a user identifier from the request context - hypothetically, identifying
|
|
||||||
the user sending an authenticated request, validated+set by a previous middleware handler.
|
|
||||||
|
|
||||||
```go
|
|
||||||
// HTTP handler accessing data from the request context.
|
|
||||||
func MyRequestHandler(w http.ResponseWriter, r *http.Request) {
|
|
||||||
// here we read from the request context and fetch out `"user"` key set in
|
|
||||||
// the MyMiddleware example above.
|
|
||||||
user := r.Context().Value("user").(string)
|
|
||||||
|
|
||||||
// respond to the client
|
|
||||||
w.Write([]byte(fmt.Sprintf("hi %s", user)))
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
### URL parameters
|
|
||||||
|
|
||||||
chi's router parses and stores URL parameters right onto the request context. Here is
|
|
||||||
an example of how to access URL params in your net/http handlers. And of course, middlewares
|
|
||||||
are able to access the same information.
|
|
||||||
|
|
||||||
```go
|
|
||||||
// HTTP handler accessing the url routing parameters.
|
|
||||||
func MyRequestHandler(w http.ResponseWriter, r *http.Request) {
|
|
||||||
// fetch the url parameter `"userID"` from the request of a matching
|
|
||||||
// routing pattern. An example routing pattern could be: /users/{userID}
|
|
||||||
userID := chi.URLParam(r, "userID")
|
|
||||||
|
|
||||||
// fetch `"key"` from the request context
|
|
||||||
ctx := r.Context()
|
|
||||||
key := ctx.Value("key").(string)
|
|
||||||
|
|
||||||
// respond to the client
|
|
||||||
w.Write([]byte(fmt.Sprintf("hi %v, %v", userID, key)))
|
|
||||||
}
|
|
||||||
```
|
|
||||||
|
|
||||||
|
|
||||||
## Middlewares
|
|
||||||
|
|
||||||
chi comes equipped with an optional `middleware` package, providing a suite of standard
|
|
||||||
`net/http` middlewares. Please note, any middleware in the ecosystem that is also compatible
|
|
||||||
with `net/http` can be used with chi's mux.
|
|
||||||
|
|
||||||
### Core middlewares
|
|
||||||
|
|
||||||
----------------------------------------------------------------------------------------------------
|
|
||||||
| chi/middleware Handler | description |
|
|
||||||
| :--------------------- | :---------------------------------------------------------------------- |
|
|
||||||
| [AllowContentEncoding] | Enforces a whitelist of request Content-Encoding headers |
|
|
||||||
| [AllowContentType] | Explicit whitelist of accepted request Content-Types |
|
|
||||||
| [BasicAuth] | Basic HTTP authentication |
|
|
||||||
| [Compress] | Gzip compression for clients that accept compressed responses |
|
|
||||||
| [ContentCharset] | Ensure charset for Content-Type request headers |
|
|
||||||
| [CleanPath] | Clean double slashes from request path |
|
|
||||||
| [GetHead] | Automatically route undefined HEAD requests to GET handlers |
|
|
||||||
| [Heartbeat] | Monitoring endpoint to check the servers pulse |
|
|
||||||
| [Logger] | Logs the start and end of each request with the elapsed processing time |
|
|
||||||
| [NoCache] | Sets response headers to prevent clients from caching |
|
|
||||||
| [Profiler] | Easily attach net/http/pprof to your routers |
|
|
||||||
| [RealIP] | Sets a http.Request's RemoteAddr to either X-Forwarded-For or X-Real-IP |
|
|
||||||
| [Recoverer] | Gracefully absorb panics and prints the stack trace |
|
|
||||||
| [RequestID] | Injects a request ID into the context of each request |
|
|
||||||
| [RedirectSlashes] | Redirect slashes on routing paths |
|
|
||||||
| [RouteHeaders] | Route handling for request headers |
|
|
||||||
| [SetHeader] | Short-hand middleware to set a response header key/value |
|
|
||||||
| [StripSlashes] | Strip slashes on routing paths |
|
|
||||||
| [Throttle] | Puts a ceiling on the number of concurrent requests |
|
|
||||||
| [Timeout] | Signals to the request context when the timeout deadline is reached |
|
|
||||||
| [URLFormat] | Parse extension from url and put it on request context |
|
|
||||||
| [WithValue] | Short-hand middleware to set a key/value on the request context |
|
|
||||||
----------------------------------------------------------------------------------------------------
|
|
||||||
|
|
||||||
[AllowContentEncoding]: https://pkg.go.dev/github.com/go-chi/chi/middleware#AllowContentEncoding
|
|
||||||
[AllowContentType]: https://pkg.go.dev/github.com/go-chi/chi/middleware#AllowContentType
|
|
||||||
[BasicAuth]: https://pkg.go.dev/github.com/go-chi/chi/middleware#BasicAuth
|
|
||||||
[Compress]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Compress
|
|
||||||
[ContentCharset]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ContentCharset
|
|
||||||
[CleanPath]: https://pkg.go.dev/github.com/go-chi/chi/middleware#CleanPath
|
|
||||||
[GetHead]: https://pkg.go.dev/github.com/go-chi/chi/middleware#GetHead
|
|
||||||
[GetReqID]: https://pkg.go.dev/github.com/go-chi/chi/middleware#GetReqID
|
|
||||||
[Heartbeat]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Heartbeat
|
|
||||||
[Logger]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Logger
|
|
||||||
[NoCache]: https://pkg.go.dev/github.com/go-chi/chi/middleware#NoCache
|
|
||||||
[Profiler]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Profiler
|
|
||||||
[RealIP]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RealIP
|
|
||||||
[Recoverer]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Recoverer
|
|
||||||
[RedirectSlashes]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RedirectSlashes
|
|
||||||
[RequestLogger]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RequestLogger
|
|
||||||
[RequestID]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RequestID
|
|
||||||
[RouteHeaders]: https://pkg.go.dev/github.com/go-chi/chi/middleware#RouteHeaders
|
|
||||||
[SetHeader]: https://pkg.go.dev/github.com/go-chi/chi/middleware#SetHeader
|
|
||||||
[StripSlashes]: https://pkg.go.dev/github.com/go-chi/chi/middleware#StripSlashes
|
|
||||||
[Throttle]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Throttle
|
|
||||||
[ThrottleBacklog]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleBacklog
|
|
||||||
[ThrottleWithOpts]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleWithOpts
|
|
||||||
[Timeout]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Timeout
|
|
||||||
[URLFormat]: https://pkg.go.dev/github.com/go-chi/chi/middleware#URLFormat
|
|
||||||
[WithLogEntry]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WithLogEntry
|
|
||||||
[WithValue]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WithValue
|
|
||||||
[Compressor]: https://pkg.go.dev/github.com/go-chi/chi/middleware#Compressor
|
|
||||||
[DefaultLogFormatter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#DefaultLogFormatter
|
|
||||||
[EncoderFunc]: https://pkg.go.dev/github.com/go-chi/chi/middleware#EncoderFunc
|
|
||||||
[HeaderRoute]: https://pkg.go.dev/github.com/go-chi/chi/middleware#HeaderRoute
|
|
||||||
[HeaderRouter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#HeaderRouter
|
|
||||||
[LogEntry]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LogEntry
|
|
||||||
[LogFormatter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LogFormatter
|
|
||||||
[LoggerInterface]: https://pkg.go.dev/github.com/go-chi/chi/middleware#LoggerInterface
|
|
||||||
[ThrottleOpts]: https://pkg.go.dev/github.com/go-chi/chi/middleware#ThrottleOpts
|
|
||||||
[WrapResponseWriter]: https://pkg.go.dev/github.com/go-chi/chi/middleware#WrapResponseWriter
|
|
||||||
|
|
||||||
### Extra middlewares & packages
|
|
||||||
|
|
||||||
Please see https://github.com/go-chi for additional packages.
|
|
||||||
|
|
||||||
--------------------------------------------------------------------------------------------------------------------
|
|
||||||
| package | description |
|
|
||||||
|:---------------------------------------------------|:-------------------------------------------------------------
|
|
||||||
| [cors](https://github.com/go-chi/cors) | Cross-origin resource sharing (CORS) |
|
|
||||||
| [docgen](https://github.com/go-chi/docgen) | Print chi.Router routes at runtime |
|
|
||||||
| [jwtauth](https://github.com/go-chi/jwtauth) | JWT authentication |
|
|
||||||
| [hostrouter](https://github.com/go-chi/hostrouter) | Domain/host based request routing |
|
|
||||||
| [httplog](https://github.com/go-chi/httplog) | Small but powerful structured HTTP request logging |
|
|
||||||
| [httprate](https://github.com/go-chi/httprate) | HTTP request rate limiter |
|
|
||||||
| [httptracer](https://github.com/go-chi/httptracer) | HTTP request performance tracing library |
|
|
||||||
| [httpvcr](https://github.com/go-chi/httpvcr) | Write deterministic tests for external sources |
|
|
||||||
| [stampede](https://github.com/go-chi/stampede) | HTTP request coalescer |
|
|
||||||
--------------------------------------------------------------------------------------------------------------------
|
|
||||||
|
|
||||||
|
|
||||||
## context?
|
|
||||||
|
|
||||||
`context` is a tiny pkg that provides simple interface to signal context across call stacks
|
|
||||||
and goroutines. It was originally written by [Sameer Ajmani](https://github.com/Sajmani)
|
|
||||||
and is available in stdlib since go1.7.
|
|
||||||
|
|
||||||
Learn more at https://blog.golang.org/context
|
|
||||||
|
|
||||||
and..
|
|
||||||
* Docs: https://golang.org/pkg/context
|
|
||||||
* Source: https://github.com/golang/go/tree/master/src/context
|
|
||||||
|
|
||||||
|
|
||||||
## Benchmarks
|
|
||||||
|
|
||||||
The benchmark suite: https://github.com/pkieltyka/go-http-routing-benchmark
|
|
||||||
|
|
||||||
Results as of Nov 29, 2020 with Go 1.15.5 on Linux AMD 3950x
|
|
||||||
|
|
||||||
```shell
|
|
||||||
BenchmarkChi_Param 3075895 384 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_Param5 2116603 566 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_Param20 964117 1227 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_ParamWrite 2863413 420 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GithubStatic 3045488 395 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GithubParam 2204115 540 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GithubAll 10000 113811 ns/op 81203 B/op 406 allocs/op
|
|
||||||
BenchmarkChi_GPlusStatic 3337485 359 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GPlusParam 2825853 423 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GPlus2Params 2471697 483 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_GPlusAll 194220 5950 ns/op 5200 B/op 26 allocs/op
|
|
||||||
BenchmarkChi_ParseStatic 3365324 356 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_ParseParam 2976614 404 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_Parse2Params 2638084 439 ns/op 400 B/op 2 allocs/op
|
|
||||||
BenchmarkChi_ParseAll 109567 11295 ns/op 10400 B/op 52 allocs/op
|
|
||||||
BenchmarkChi_StaticAll 16846 71308 ns/op 62802 B/op 314 allocs/op
|
|
||||||
```
|
|
||||||
|
|
||||||
Comparison with other routers: https://gist.github.com/pkieltyka/123032f12052520aaccab752bd3e78cc
|
|
||||||
|
|
||||||
NOTE: the allocs in the benchmark above are from the calls to http.Request's
|
|
||||||
`WithContext(context.Context)` method that clones the http.Request, sets the `Context()`
|
|
||||||
on the duplicated (alloc'd) request and returns it the new request object. This is just
|
|
||||||
how setting context on a request in Go works.
|
|
||||||
|
|
||||||
|
|
||||||
## Go module support & note on chi's versioning
|
|
||||||
|
|
||||||
* Go.mod support means we reset our versioning starting from v1.5 (see [CHANGELOG](https://github.com/go-chi/chi/blob/master/CHANGELOG.md#v150-2020-11-12---now-with-gomod-support))
|
|
||||||
* All older tags are preserved, are backwards-compatible and will "just work" as they
|
|
||||||
* Brand new systems can run `go get -u github.com/go-chi/chi` as normal, or `go get -u github.com/go-chi/chi@latest`
|
|
||||||
to install chi, which will install v1.x+ built with go.mod support, starting from v1.5.0.
|
|
||||||
* 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).
|
|
||||||
* Any breaking changes will bump a "minor" release and backwards-compatible improvements/fixes will bump a "tiny" release.
|
|
||||||
|
|
||||||
|
|
||||||
## Credits
|
|
||||||
|
|
||||||
* Carl Jackson for https://github.com/zenazn/goji
|
|
||||||
* Parts of chi's thinking comes from goji, and chi's middleware package
|
|
||||||
sources from goji.
|
|
||||||
* Armon Dadgar for https://github.com/armon/go-radix
|
|
||||||
* Contributions: [@VojtechVitek](https://github.com/VojtechVitek)
|
|
||||||
|
|
||||||
We'll be more than happy to see [your contributions](./CONTRIBUTING.md)!
|
|
||||||
|
|
||||||
|
|
||||||
## Beyond REST
|
|
||||||
|
|
||||||
chi is just a http router that lets you decompose request handling into many smaller layers.
|
|
||||||
Many companies use chi to write REST services for their public APIs. But, REST is just a convention
|
|
||||||
for managing state via HTTP, and there's a lot of other pieces required to write a complete client-server
|
|
||||||
system or network of microservices.
|
|
||||||
|
|
||||||
Looking beyond REST, I also recommend some newer works in the field:
|
|
||||||
* [webrpc](https://github.com/webrpc/webrpc) - Web-focused RPC client+server framework with code-gen
|
|
||||||
* [gRPC](https://github.com/grpc/grpc-go) - Google's RPC framework via protobufs
|
|
||||||
* [graphql](https://github.com/99designs/gqlgen) - Declarative query language
|
|
||||||
* [NATS](https://nats.io) - lightweight pub-sub
|
|
||||||
|
|
||||||
|
|
||||||
## License
|
|
||||||
|
|
||||||
Copyright (c) 2015-present [Peter Kieltyka](https://github.com/pkieltyka)
|
|
||||||
|
|
||||||
Licensed under [MIT License](./LICENSE)
|
|
||||||
|
|
||||||
[GoDoc]: https://pkg.go.dev/github.com/go-chi/chi?tab=versions
|
|
||||||
[GoDoc Widget]: https://godoc.org/github.com/go-chi/chi?status.svg
|
|
||||||
[Travis]: https://travis-ci.org/go-chi/chi
|
|
||||||
[Travis Widget]: https://travis-ci.org/go-chi/chi.svg?branch=master
|
|
||||||
49
vendor/github.com/go-chi/chi/chain.go
generated
vendored
49
vendor/github.com/go-chi/chi/chain.go
generated
vendored
|
|
@ -1,49 +0,0 @@
|
||||||
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
|
|
||||||
}
|
|
||||||
134
vendor/github.com/go-chi/chi/chi.go
generated
vendored
134
vendor/github.com/go-chi/chi/chi.go
generated
vendored
|
|
@ -1,134 +0,0 @@
|
||||||
//
|
|
||||||
// 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
|
|
||||||
157
vendor/github.com/go-chi/chi/context.go
generated
vendored
157
vendor/github.com/go-chi/chi/context.go
generated
vendored
|
|
@ -1,157 +0,0 @@
|
||||||
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
vendor/github.com/go-chi/chi/go.mod
generated
vendored
3
vendor/github.com/go-chi/chi/go.mod
generated
vendored
|
|
@ -1,3 +0,0 @@
|
||||||
module github.com/go-chi/chi
|
|
||||||
|
|
||||||
go 1.16
|
|
||||||
479
vendor/github.com/go-chi/chi/mux.go
generated
vendored
479
vendor/github.com/go-chi/chi/mux.go
generated
vendored
|
|
@ -1,479 +0,0 @@
|
||||||
package chi
|
|
||||||
|
|
||||||
import (
|
|
||||||
"context"
|
|
||||||
"fmt"
|
|
||||||
"net/http"
|
|
||||||
"strings"
|
|
||||||
"sync"
|
|
||||||
)
|
|
||||||
|
|
||||||
var _ Router = &Mux{}
|
|
||||||
|
|
||||||
// Mux is a simple HTTP route multiplexer that parses a request path,
|
|
||||||
// records any URL params, and executes an end handler. It implements
|
|
||||||
// the http.Handler interface and is friendly with the standard library.
|
|
||||||
//
|
|
||||||
// Mux is designed to be fast, minimal and offer a powerful API for building
|
|
||||||
// modular and composable HTTP services with a large set of handlers. It's
|
|
||||||
// particularly useful for writing large REST API services that break a handler
|
|
||||||
// into many smaller parts composed of middlewares and end handlers.
|
|
||||||
type Mux struct {
|
|
||||||
// The radix trie router
|
|
||||||
tree *node
|
|
||||||
|
|
||||||
// The middleware stack
|
|
||||||
middlewares []func(http.Handler) http.Handler
|
|
||||||
|
|
||||||
// Controls the behaviour of middleware chain generation when a mux
|
|
||||||
// is registered as an inline group inside another mux.
|
|
||||||
inline bool
|
|
||||||
parent *Mux
|
|
||||||
|
|
||||||
// The computed mux handler made of the chained middleware stack and
|
|
||||||
// the tree router
|
|
||||||
handler http.Handler
|
|
||||||
|
|
||||||
// Routing context pool
|
|
||||||
pool *sync.Pool
|
|
||||||
|
|
||||||
// Custom route not found handler
|
|
||||||
notFoundHandler http.HandlerFunc
|
|
||||||
|
|
||||||
// Custom method not allowed handler
|
|
||||||
methodNotAllowedHandler http.HandlerFunc
|
|
||||||
}
|
|
||||||
|
|
||||||
// NewMux returns a newly initialized Mux object that implements the Router
|
|
||||||
// interface.
|
|
||||||
func NewMux() *Mux {
|
|
||||||
mux := &Mux{tree: &node{}, pool: &sync.Pool{}}
|
|
||||||
mux.pool.New = func() interface{} {
|
|
||||||
return NewRouteContext()
|
|
||||||
}
|
|
||||||
return mux
|
|
||||||
}
|
|
||||||
|
|
||||||
// ServeHTTP is the single method of the http.Handler interface that makes
|
|
||||||
// Mux interoperable with the standard library. It uses a sync.Pool to get and
|
|
||||||
// reuse routing contexts for each request.
|
|
||||||
func (mx *Mux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
||||||
// Ensure the mux has some routes defined on the mux
|
|
||||||
if mx.handler == nil {
|
|
||||||
mx.NotFoundHandler().ServeHTTP(w, r)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
// Check if a routing context already exists from a parent router.
|
|
||||||
rctx, _ := r.Context().Value(RouteCtxKey).(*Context)
|
|
||||||
if rctx != nil {
|
|
||||||
mx.handler.ServeHTTP(w, r)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
// Fetch a RouteContext object from the sync pool, and call the computed
|
|
||||||
// mx.handler that is comprised of mx.middlewares + mx.routeHTTP.
|
|
||||||
// Once the request is finished, reset the routing context and put it back
|
|
||||||
// into the pool for reuse from another request.
|
|
||||||
rctx = mx.pool.Get().(*Context)
|
|
||||||
rctx.Reset()
|
|
||||||
rctx.Routes = mx
|
|
||||||
rctx.parentCtx = r.Context()
|
|
||||||
|
|
||||||
// NOTE: r.WithContext() causes 2 allocations and context.WithValue() causes 1 allocation
|
|
||||||
r = r.WithContext(context.WithValue(r.Context(), RouteCtxKey, rctx))
|
|
||||||
|
|
||||||
// Serve the request and once its done, put the request context back in the sync pool
|
|
||||||
mx.handler.ServeHTTP(w, r)
|
|
||||||
mx.pool.Put(rctx)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Use appends a middleware handler to the Mux middleware stack.
|
|
||||||
//
|
|
||||||
// The middleware stack for any Mux will execute before searching for a matching
|
|
||||||
// route to a specific handler, which provides opportunity to respond early,
|
|
||||||
// change the course of the request execution, or set request-scoped values for
|
|
||||||
// the next http.Handler.
|
|
||||||
func (mx *Mux) Use(middlewares ...func(http.Handler) http.Handler) {
|
|
||||||
if mx.handler != nil {
|
|
||||||
panic("chi: all middlewares must be defined before routes on a mux")
|
|
||||||
}
|
|
||||||
mx.middlewares = append(mx.middlewares, middlewares...)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Handle adds the route `pattern` that matches any http method to
|
|
||||||
// execute the `handler` http.Handler.
|
|
||||||
func (mx *Mux) Handle(pattern string, handler http.Handler) {
|
|
||||||
mx.handle(mALL, pattern, handler)
|
|
||||||
}
|
|
||||||
|
|
||||||
// HandleFunc adds the route `pattern` that matches any http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) HandleFunc(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mALL, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Method adds the route `pattern` that matches `method` http method to
|
|
||||||
// execute the `handler` http.Handler.
|
|
||||||
func (mx *Mux) Method(method, pattern string, handler http.Handler) {
|
|
||||||
m, ok := methodMap[strings.ToUpper(method)]
|
|
||||||
if !ok {
|
|
||||||
panic(fmt.Sprintf("chi: '%s' http method is not supported.", method))
|
|
||||||
}
|
|
||||||
mx.handle(m, pattern, handler)
|
|
||||||
}
|
|
||||||
|
|
||||||
// MethodFunc adds the route `pattern` that matches `method` http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) MethodFunc(method, pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.Method(method, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Connect adds the route `pattern` that matches a CONNECT http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Connect(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mCONNECT, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Delete adds the route `pattern` that matches a DELETE http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Delete(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mDELETE, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Get adds the route `pattern` that matches a GET http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Get(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mGET, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Head adds the route `pattern` that matches a HEAD http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Head(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mHEAD, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Options adds the route `pattern` that matches a OPTIONS http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Options(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mOPTIONS, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Patch adds the route `pattern` that matches a PATCH http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Patch(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mPATCH, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Post adds the route `pattern` that matches a POST http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Post(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mPOST, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Put adds the route `pattern` that matches a PUT http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Put(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mPUT, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// Trace adds the route `pattern` that matches a TRACE http method to
|
|
||||||
// execute the `handlerFn` http.HandlerFunc.
|
|
||||||
func (mx *Mux) Trace(pattern string, handlerFn http.HandlerFunc) {
|
|
||||||
mx.handle(mTRACE, pattern, handlerFn)
|
|
||||||
}
|
|
||||||
|
|
||||||
// NotFound sets a custom http.HandlerFunc for routing paths that could
|
|
||||||
// not be found. The default 404 handler is `http.NotFound`.
|
|
||||||
func (mx *Mux) NotFound(handlerFn http.HandlerFunc) {
|
|
||||||
// Build NotFound handler chain
|
|
||||||
m := mx
|
|
||||||
h := Chain(mx.middlewares...).HandlerFunc(handlerFn).ServeHTTP
|
|
||||||
if mx.inline && mx.parent != nil {
|
|
||||||
m = mx.parent
|
|
||||||
}
|
|
||||||
|
|
||||||
// Update the notFoundHandler from this point forward
|
|
||||||
m.notFoundHandler = h
|
|
||||||
m.updateSubRoutes(func(subMux *Mux) {
|
|
||||||
if subMux.notFoundHandler == nil {
|
|
||||||
subMux.NotFound(h)
|
|
||||||
}
|
|
||||||
})
|
|
||||||
}
|
|
||||||
|
|
||||||
// MethodNotAllowed sets a custom http.HandlerFunc for routing paths where the
|
|
||||||
// method is unresolved. The default handler returns a 405 with an empty body.
|
|
||||||
func (mx *Mux) MethodNotAllowed(handlerFn http.HandlerFunc) {
|
|
||||||
// Build MethodNotAllowed handler chain
|
|
||||||
m := mx
|
|
||||||
h := Chain(mx.middlewares...).HandlerFunc(handlerFn).ServeHTTP
|
|
||||||
if mx.inline && mx.parent != nil {
|
|
||||||
m = mx.parent
|
|
||||||
}
|
|
||||||
|
|
||||||
// Update the methodNotAllowedHandler from this point forward
|
|
||||||
m.methodNotAllowedHandler = h
|
|
||||||
m.updateSubRoutes(func(subMux *Mux) {
|
|
||||||
if subMux.methodNotAllowedHandler == nil {
|
|
||||||
subMux.MethodNotAllowed(h)
|
|
||||||
}
|
|
||||||
})
|
|
||||||
}
|
|
||||||
|
|
||||||
// With adds inline middlewares for an endpoint handler.
|
|
||||||
func (mx *Mux) With(middlewares ...func(http.Handler) http.Handler) Router {
|
|
||||||
// Similarly as in handle(), we must build the mux handler once additional
|
|
||||||
// middleware registration isn't allowed for this stack, like now.
|
|
||||||
if !mx.inline && mx.handler == nil {
|
|
||||||
mx.updateRouteHandler()
|
|
||||||
}
|
|
||||||
|
|
||||||
// Copy middlewares from parent inline muxs
|
|
||||||
var mws Middlewares
|
|
||||||
if mx.inline {
|
|
||||||
mws = make(Middlewares, len(mx.middlewares))
|
|
||||||
copy(mws, mx.middlewares)
|
|
||||||
}
|
|
||||||
mws = append(mws, middlewares...)
|
|
||||||
|
|
||||||
im := &Mux{
|
|
||||||
pool: mx.pool, inline: true, parent: mx, tree: mx.tree, middlewares: mws,
|
|
||||||
notFoundHandler: mx.notFoundHandler, methodNotAllowedHandler: mx.methodNotAllowedHandler,
|
|
||||||
}
|
|
||||||
|
|
||||||
return im
|
|
||||||
}
|
|
||||||
|
|
||||||
// Group creates a new inline-Mux with a fresh middleware stack. It's useful
|
|
||||||
// for a group of handlers along the same routing path that use an additional
|
|
||||||
// set of middlewares. See _examples/.
|
|
||||||
func (mx *Mux) Group(fn func(r Router)) Router {
|
|
||||||
im := mx.With().(*Mux)
|
|
||||||
if fn != nil {
|
|
||||||
fn(im)
|
|
||||||
}
|
|
||||||
return im
|
|
||||||
}
|
|
||||||
|
|
||||||
// Route creates a new Mux with a fresh middleware stack and mounts it
|
|
||||||
// along the `pattern` as a subrouter. Effectively, this is a short-hand
|
|
||||||
// call to Mount. See _examples/.
|
|
||||||
func (mx *Mux) Route(pattern string, fn func(r Router)) Router {
|
|
||||||
if fn == nil {
|
|
||||||
panic(fmt.Sprintf("chi: attempting to Route() a nil subrouter on '%s'", pattern))
|
|
||||||
}
|
|
||||||
subRouter := NewRouter()
|
|
||||||
fn(subRouter)
|
|
||||||
mx.Mount(pattern, subRouter)
|
|
||||||
return subRouter
|
|
||||||
}
|
|
||||||
|
|
||||||
// Mount attaches another http.Handler or chi Router as a subrouter along a routing
|
|
||||||
// path. It's very useful to split up a large API as many independent routers and
|
|
||||||
// compose them as a single service using Mount. See _examples/.
|
|
||||||
//
|
|
||||||
// Note that Mount() simply sets a wildcard along the `pattern` that will continue
|
|
||||||
// routing at the `handler`, which in most cases is another chi.Router. As a result,
|
|
||||||
// if you define two Mount() routes on the exact same pattern the mount will panic.
|
|
||||||
func (mx *Mux) Mount(pattern string, handler http.Handler) {
|
|
||||||
if handler == nil {
|
|
||||||
panic(fmt.Sprintf("chi: attempting to Mount() a nil handler on '%s'", pattern))
|
|
||||||
}
|
|
||||||
|
|
||||||
// Provide runtime safety for ensuring a pattern isn't mounted on an existing
|
|
||||||
// routing pattern.
|
|
||||||
if mx.tree.findPattern(pattern+"*") || mx.tree.findPattern(pattern+"/*") {
|
|
||||||
panic(fmt.Sprintf("chi: attempting to Mount() a handler on an existing path, '%s'", pattern))
|
|
||||||
}
|
|
||||||
|
|
||||||
// Assign sub-Router's with the parent not found & method not allowed handler if not specified.
|
|
||||||
subr, ok := handler.(*Mux)
|
|
||||||
if ok && subr.notFoundHandler == nil && mx.notFoundHandler != nil {
|
|
||||||
subr.NotFound(mx.notFoundHandler)
|
|
||||||
}
|
|
||||||
if ok && subr.methodNotAllowedHandler == nil && mx.methodNotAllowedHandler != nil {
|
|
||||||
subr.MethodNotAllowed(mx.methodNotAllowedHandler)
|
|
||||||
}
|
|
||||||
|
|
||||||
mountHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
|
|
||||||
rctx := RouteContext(r.Context())
|
|
||||||
|
|
||||||
// shift the url path past the previous subrouter
|
|
||||||
rctx.RoutePath = mx.nextRoutePath(rctx)
|
|
||||||
|
|
||||||
// reset the wildcard URLParam which connects the subrouter
|
|
||||||
n := len(rctx.URLParams.Keys) - 1
|
|
||||||
if n >= 0 && rctx.URLParams.Keys[n] == "*" && len(rctx.URLParams.Values) > n {
|
|
||||||
rctx.URLParams.Values[n] = ""
|
|
||||||
}
|
|
||||||
|
|
||||||
handler.ServeHTTP(w, r)
|
|
||||||
})
|
|
||||||
|
|
||||||
if pattern == "" || pattern[len(pattern)-1] != '/' {
|
|
||||||
mx.handle(mALL|mSTUB, pattern, mountHandler)
|
|
||||||
mx.handle(mALL|mSTUB, pattern+"/", mountHandler)
|
|
||||||
pattern += "/"
|
|
||||||
}
|
|
||||||
|
|
||||||
method := mALL
|
|
||||||
subroutes, _ := handler.(Routes)
|
|
||||||
if subroutes != nil {
|
|
||||||
method |= mSTUB
|
|
||||||
}
|
|
||||||
n := mx.handle(method, pattern+"*", mountHandler)
|
|
||||||
|
|
||||||
if subroutes != nil {
|
|
||||||
n.subroutes = subroutes
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Routes returns a slice of routing information from the tree,
|
|
||||||
// useful for traversing available routes of a router.
|
|
||||||
func (mx *Mux) Routes() []Route {
|
|
||||||
return mx.tree.routes()
|
|
||||||
}
|
|
||||||
|
|
||||||
// Middlewares returns a slice of middleware handler functions.
|
|
||||||
func (mx *Mux) Middlewares() Middlewares {
|
|
||||||
return mx.middlewares
|
|
||||||
}
|
|
||||||
|
|
||||||
// Match searches the routing tree for a handler that matches the method/path.
|
|
||||||
// It's similar to routing a http request, but without executing the handler
|
|
||||||
// thereafter.
|
|
||||||
//
|
|
||||||
// Note: the *Context state is updated during execution, so manage
|
|
||||||
// the state carefully or make a NewRouteContext().
|
|
||||||
func (mx *Mux) Match(rctx *Context, method, path string) bool {
|
|
||||||
m, ok := methodMap[method]
|
|
||||||
if !ok {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
node, _, h := mx.tree.FindRoute(rctx, m, path)
|
|
||||||
|
|
||||||
if node != nil && node.subroutes != nil {
|
|
||||||
rctx.RoutePath = mx.nextRoutePath(rctx)
|
|
||||||
return node.subroutes.Match(rctx, method, rctx.RoutePath)
|
|
||||||
}
|
|
||||||
|
|
||||||
return h != nil
|
|
||||||
}
|
|
||||||
|
|
||||||
// NotFoundHandler returns the default Mux 404 responder whenever a route
|
|
||||||
// cannot be found.
|
|
||||||
func (mx *Mux) NotFoundHandler() http.HandlerFunc {
|
|
||||||
if mx.notFoundHandler != nil {
|
|
||||||
return mx.notFoundHandler
|
|
||||||
}
|
|
||||||
return http.NotFound
|
|
||||||
}
|
|
||||||
|
|
||||||
// MethodNotAllowedHandler returns the default Mux 405 responder whenever
|
|
||||||
// a method cannot be resolved for a route.
|
|
||||||
func (mx *Mux) MethodNotAllowedHandler() http.HandlerFunc {
|
|
||||||
if mx.methodNotAllowedHandler != nil {
|
|
||||||
return mx.methodNotAllowedHandler
|
|
||||||
}
|
|
||||||
return methodNotAllowedHandler
|
|
||||||
}
|
|
||||||
|
|
||||||
// handle registers a http.Handler in the routing tree for a particular http method
|
|
||||||
// and routing pattern.
|
|
||||||
func (mx *Mux) handle(method methodTyp, pattern string, handler http.Handler) *node {
|
|
||||||
if len(pattern) == 0 || pattern[0] != '/' {
|
|
||||||
panic(fmt.Sprintf("chi: routing pattern must begin with '/' in '%s'", pattern))
|
|
||||||
}
|
|
||||||
|
|
||||||
// Build the computed routing handler for this routing pattern.
|
|
||||||
if !mx.inline && mx.handler == nil {
|
|
||||||
mx.updateRouteHandler()
|
|
||||||
}
|
|
||||||
|
|
||||||
// Build endpoint handler with inline middlewares for the route
|
|
||||||
var h http.Handler
|
|
||||||
if mx.inline {
|
|
||||||
mx.handler = http.HandlerFunc(mx.routeHTTP)
|
|
||||||
h = Chain(mx.middlewares...).Handler(handler)
|
|
||||||
} else {
|
|
||||||
h = handler
|
|
||||||
}
|
|
||||||
|
|
||||||
// Add the endpoint to the tree and return the node
|
|
||||||
return mx.tree.InsertRoute(method, pattern, h)
|
|
||||||
}
|
|
||||||
|
|
||||||
// routeHTTP routes a http.Request through the Mux routing tree to serve
|
|
||||||
// the matching handler for a particular http method.
|
|
||||||
func (mx *Mux) routeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
||||||
// Grab the route context object
|
|
||||||
rctx := r.Context().Value(RouteCtxKey).(*Context)
|
|
||||||
|
|
||||||
// The request routing path
|
|
||||||
routePath := rctx.RoutePath
|
|
||||||
if routePath == "" {
|
|
||||||
if r.URL.RawPath != "" {
|
|
||||||
routePath = r.URL.RawPath
|
|
||||||
} else {
|
|
||||||
routePath = r.URL.Path
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// Check if method is supported by chi
|
|
||||||
if rctx.RouteMethod == "" {
|
|
||||||
rctx.RouteMethod = r.Method
|
|
||||||
}
|
|
||||||
method, ok := methodMap[rctx.RouteMethod]
|
|
||||||
if !ok {
|
|
||||||
mx.MethodNotAllowedHandler().ServeHTTP(w, r)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
|
|
||||||
// Find the route
|
|
||||||
if _, _, h := mx.tree.FindRoute(rctx, method, routePath); h != nil {
|
|
||||||
h.ServeHTTP(w, r)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
if rctx.methodNotAllowed {
|
|
||||||
mx.MethodNotAllowedHandler().ServeHTTP(w, r)
|
|
||||||
} else {
|
|
||||||
mx.NotFoundHandler().ServeHTTP(w, r)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (mx *Mux) nextRoutePath(rctx *Context) string {
|
|
||||||
routePath := "/"
|
|
||||||
nx := len(rctx.routeParams.Keys) - 1 // index of last param in list
|
|
||||||
if nx >= 0 && rctx.routeParams.Keys[nx] == "*" && len(rctx.routeParams.Values) > nx {
|
|
||||||
routePath = "/" + rctx.routeParams.Values[nx]
|
|
||||||
}
|
|
||||||
return routePath
|
|
||||||
}
|
|
||||||
|
|
||||||
// Recursively update data on child routers.
|
|
||||||
func (mx *Mux) updateSubRoutes(fn func(subMux *Mux)) {
|
|
||||||
for _, r := range mx.tree.routes() {
|
|
||||||
subMux, ok := r.SubRoutes.(*Mux)
|
|
||||||
if !ok {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
fn(subMux)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// updateRouteHandler builds the single mux handler that is a chain of the middleware
|
|
||||||
// stack, as defined by calls to Use(), and the tree router (Mux) itself. After this
|
|
||||||
// point, no other middlewares can be registered on this Mux's stack. But you can still
|
|
||||||
// compose additional middlewares via Group()'s or using a chained middleware handler.
|
|
||||||
func (mx *Mux) updateRouteHandler() {
|
|
||||||
mx.handler = chain(mx.middlewares, http.HandlerFunc(mx.routeHTTP))
|
|
||||||
}
|
|
||||||
|
|
||||||
// methodNotAllowedHandler is a helper function to respond with a 405,
|
|
||||||
// method not allowed.
|
|
||||||
func methodNotAllowedHandler(w http.ResponseWriter, r *http.Request) {
|
|
||||||
w.WriteHeader(405)
|
|
||||||
w.Write(nil)
|
|
||||||
}
|
|
||||||
866
vendor/github.com/go-chi/chi/tree.go
generated
vendored
866
vendor/github.com/go-chi/chi/tree.go
generated
vendored
|
|
@ -1,866 +0,0 @@
|
||||||
package chi
|
|
||||||
|
|
||||||
// Radix tree implementation below is a based on the original work by
|
|
||||||
// Armon Dadgar in https://github.com/armon/go-radix/blob/master/radix.go
|
|
||||||
// (MIT licensed). It's been heavily modified for use as a HTTP routing tree.
|
|
||||||
|
|
||||||
import (
|
|
||||||
"fmt"
|
|
||||||
"net/http"
|
|
||||||
"regexp"
|
|
||||||
"sort"
|
|
||||||
"strconv"
|
|
||||||
"strings"
|
|
||||||
)
|
|
||||||
|
|
||||||
type methodTyp int
|
|
||||||
|
|
||||||
const (
|
|
||||||
mSTUB methodTyp = 1 << iota
|
|
||||||
mCONNECT
|
|
||||||
mDELETE
|
|
||||||
mGET
|
|
||||||
mHEAD
|
|
||||||
mOPTIONS
|
|
||||||
mPATCH
|
|
||||||
mPOST
|
|
||||||
mPUT
|
|
||||||
mTRACE
|
|
||||||
)
|
|
||||||
|
|
||||||
var mALL = mCONNECT | mDELETE | mGET | mHEAD |
|
|
||||||
mOPTIONS | mPATCH | mPOST | mPUT | mTRACE
|
|
||||||
|
|
||||||
var methodMap = map[string]methodTyp{
|
|
||||||
http.MethodConnect: mCONNECT,
|
|
||||||
http.MethodDelete: mDELETE,
|
|
||||||
http.MethodGet: mGET,
|
|
||||||
http.MethodHead: mHEAD,
|
|
||||||
http.MethodOptions: mOPTIONS,
|
|
||||||
http.MethodPatch: mPATCH,
|
|
||||||
http.MethodPost: mPOST,
|
|
||||||
http.MethodPut: mPUT,
|
|
||||||
http.MethodTrace: mTRACE,
|
|
||||||
}
|
|
||||||
|
|
||||||
// RegisterMethod adds support for custom HTTP method handlers, available
|
|
||||||
// via Router#Method and Router#MethodFunc
|
|
||||||
func RegisterMethod(method string) {
|
|
||||||
if method == "" {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
method = strings.ToUpper(method)
|
|
||||||
if _, ok := methodMap[method]; ok {
|
|
||||||
return
|
|
||||||
}
|
|
||||||
n := len(methodMap)
|
|
||||||
if n > strconv.IntSize-2 {
|
|
||||||
panic(fmt.Sprintf("chi: max number of methods reached (%d)", strconv.IntSize))
|
|
||||||
}
|
|
||||||
mt := methodTyp(2 << n)
|
|
||||||
methodMap[method] = mt
|
|
||||||
mALL |= mt
|
|
||||||
}
|
|
||||||
|
|
||||||
type nodeTyp uint8
|
|
||||||
|
|
||||||
const (
|
|
||||||
ntStatic nodeTyp = iota // /home
|
|
||||||
ntRegexp // /{id:[0-9]+}
|
|
||||||
ntParam // /{user}
|
|
||||||
ntCatchAll // /api/v1/*
|
|
||||||
)
|
|
||||||
|
|
||||||
type node struct {
|
|
||||||
// node type: static, regexp, param, catchAll
|
|
||||||
typ nodeTyp
|
|
||||||
|
|
||||||
// first byte of the prefix
|
|
||||||
label byte
|
|
||||||
|
|
||||||
// first byte of the child prefix
|
|
||||||
tail byte
|
|
||||||
|
|
||||||
// prefix is the common prefix we ignore
|
|
||||||
prefix string
|
|
||||||
|
|
||||||
// regexp matcher for regexp nodes
|
|
||||||
rex *regexp.Regexp
|
|
||||||
|
|
||||||
// HTTP handler endpoints on the leaf node
|
|
||||||
endpoints endpoints
|
|
||||||
|
|
||||||
// subroutes on the leaf node
|
|
||||||
subroutes Routes
|
|
||||||
|
|
||||||
// child nodes should be stored in-order for iteration,
|
|
||||||
// in groups of the node type.
|
|
||||||
children [ntCatchAll + 1]nodes
|
|
||||||
}
|
|
||||||
|
|
||||||
// endpoints is a mapping of http method constants to handlers
|
|
||||||
// for a given route.
|
|
||||||
type endpoints map[methodTyp]*endpoint
|
|
||||||
|
|
||||||
type endpoint struct {
|
|
||||||
// endpoint handler
|
|
||||||
handler http.Handler
|
|
||||||
|
|
||||||
// pattern is the routing pattern for handler nodes
|
|
||||||
pattern string
|
|
||||||
|
|
||||||
// parameter keys recorded on handler nodes
|
|
||||||
paramKeys []string
|
|
||||||
}
|
|
||||||
|
|
||||||
func (s endpoints) Value(method methodTyp) *endpoint {
|
|
||||||
mh, ok := s[method]
|
|
||||||
if !ok {
|
|
||||||
mh = &endpoint{}
|
|
||||||
s[method] = mh
|
|
||||||
}
|
|
||||||
return mh
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) InsertRoute(method methodTyp, pattern string, handler http.Handler) *node {
|
|
||||||
var parent *node
|
|
||||||
search := pattern
|
|
||||||
|
|
||||||
for {
|
|
||||||
// Handle key exhaustion
|
|
||||||
if len(search) == 0 {
|
|
||||||
// Insert or update the node's leaf handler
|
|
||||||
n.setEndpoint(method, handler, pattern)
|
|
||||||
return n
|
|
||||||
}
|
|
||||||
|
|
||||||
// We're going to be searching for a wild node next,
|
|
||||||
// in this case, we need to get the tail
|
|
||||||
var label = search[0]
|
|
||||||
var segTail byte
|
|
||||||
var segEndIdx int
|
|
||||||
var segTyp nodeTyp
|
|
||||||
var segRexpat string
|
|
||||||
if label == '{' || label == '*' {
|
|
||||||
segTyp, _, segRexpat, segTail, _, segEndIdx = patNextSegment(search)
|
|
||||||
}
|
|
||||||
|
|
||||||
var prefix string
|
|
||||||
if segTyp == ntRegexp {
|
|
||||||
prefix = segRexpat
|
|
||||||
}
|
|
||||||
|
|
||||||
// Look for the edge to attach to
|
|
||||||
parent = n
|
|
||||||
n = n.getEdge(segTyp, label, segTail, prefix)
|
|
||||||
|
|
||||||
// No edge, create one
|
|
||||||
if n == nil {
|
|
||||||
child := &node{label: label, tail: segTail, prefix: search}
|
|
||||||
hn := parent.addChild(child, search)
|
|
||||||
hn.setEndpoint(method, handler, pattern)
|
|
||||||
|
|
||||||
return hn
|
|
||||||
}
|
|
||||||
|
|
||||||
// Found an edge to match the pattern
|
|
||||||
|
|
||||||
if n.typ > ntStatic {
|
|
||||||
// We found a param node, trim the param from the search path and continue.
|
|
||||||
// This param/wild pattern segment would already be on the tree from a previous
|
|
||||||
// call to addChild when creating a new node.
|
|
||||||
search = search[segEndIdx:]
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
// Static nodes fall below here.
|
|
||||||
// Determine longest prefix of the search key on match.
|
|
||||||
commonPrefix := longestPrefix(search, n.prefix)
|
|
||||||
if commonPrefix == len(n.prefix) {
|
|
||||||
// the common prefix is as long as the current node's prefix we're attempting to insert.
|
|
||||||
// keep the search going.
|
|
||||||
search = search[commonPrefix:]
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
// Split the node
|
|
||||||
child := &node{
|
|
||||||
typ: ntStatic,
|
|
||||||
prefix: search[:commonPrefix],
|
|
||||||
}
|
|
||||||
parent.replaceChild(search[0], segTail, child)
|
|
||||||
|
|
||||||
// Restore the existing node
|
|
||||||
n.label = n.prefix[commonPrefix]
|
|
||||||
n.prefix = n.prefix[commonPrefix:]
|
|
||||||
child.addChild(n, n.prefix)
|
|
||||||
|
|
||||||
// If the new key is a subset, set the method/handler on this node and finish.
|
|
||||||
search = search[commonPrefix:]
|
|
||||||
if len(search) == 0 {
|
|
||||||
child.setEndpoint(method, handler, pattern)
|
|
||||||
return child
|
|
||||||
}
|
|
||||||
|
|
||||||
// Create a new edge for the node
|
|
||||||
subchild := &node{
|
|
||||||
typ: ntStatic,
|
|
||||||
label: search[0],
|
|
||||||
prefix: search,
|
|
||||||
}
|
|
||||||
hn := child.addChild(subchild, search)
|
|
||||||
hn.setEndpoint(method, handler, pattern)
|
|
||||||
return hn
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// addChild appends the new `child` node to the tree using the `pattern` as the trie key.
|
|
||||||
// For a URL router like chi's, we split the static, param, regexp and wildcard segments
|
|
||||||
// into different nodes. In addition, addChild will recursively call itself until every
|
|
||||||
// pattern segment is added to the url pattern tree as individual nodes, depending on type.
|
|
||||||
func (n *node) addChild(child *node, prefix string) *node {
|
|
||||||
search := prefix
|
|
||||||
|
|
||||||
// handler leaf node added to the tree is the child.
|
|
||||||
// this may be overridden later down the flow
|
|
||||||
hn := child
|
|
||||||
|
|
||||||
// Parse next segment
|
|
||||||
segTyp, _, segRexpat, segTail, segStartIdx, segEndIdx := patNextSegment(search)
|
|
||||||
|
|
||||||
// Add child depending on next up segment
|
|
||||||
switch segTyp {
|
|
||||||
|
|
||||||
case ntStatic:
|
|
||||||
// Search prefix is all static (that is, has no params in path)
|
|
||||||
// noop
|
|
||||||
|
|
||||||
default:
|
|
||||||
// Search prefix contains a param, regexp or wildcard
|
|
||||||
|
|
||||||
if segTyp == ntRegexp {
|
|
||||||
rex, err := regexp.Compile(segRexpat)
|
|
||||||
if err != nil {
|
|
||||||
panic(fmt.Sprintf("chi: invalid regexp pattern '%s' in route param", segRexpat))
|
|
||||||
}
|
|
||||||
child.prefix = segRexpat
|
|
||||||
child.rex = rex
|
|
||||||
}
|
|
||||||
|
|
||||||
if segStartIdx == 0 {
|
|
||||||
// Route starts with a param
|
|
||||||
child.typ = segTyp
|
|
||||||
|
|
||||||
if segTyp == ntCatchAll {
|
|
||||||
segStartIdx = -1
|
|
||||||
} else {
|
|
||||||
segStartIdx = segEndIdx
|
|
||||||
}
|
|
||||||
if segStartIdx < 0 {
|
|
||||||
segStartIdx = len(search)
|
|
||||||
}
|
|
||||||
child.tail = segTail // for params, we set the tail
|
|
||||||
|
|
||||||
if segStartIdx != len(search) {
|
|
||||||
// add static edge for the remaining part, split the end.
|
|
||||||
// its not possible to have adjacent param nodes, so its certainly
|
|
||||||
// going to be a static node next.
|
|
||||||
|
|
||||||
search = search[segStartIdx:] // advance search position
|
|
||||||
|
|
||||||
nn := &node{
|
|
||||||
typ: ntStatic,
|
|
||||||
label: search[0],
|
|
||||||
prefix: search,
|
|
||||||
}
|
|
||||||
hn = child.addChild(nn, search)
|
|
||||||
}
|
|
||||||
|
|
||||||
} else if segStartIdx > 0 {
|
|
||||||
// Route has some param
|
|
||||||
|
|
||||||
// starts with a static segment
|
|
||||||
child.typ = ntStatic
|
|
||||||
child.prefix = search[:segStartIdx]
|
|
||||||
child.rex = nil
|
|
||||||
|
|
||||||
// add the param edge node
|
|
||||||
search = search[segStartIdx:]
|
|
||||||
|
|
||||||
nn := &node{
|
|
||||||
typ: segTyp,
|
|
||||||
label: search[0],
|
|
||||||
tail: segTail,
|
|
||||||
}
|
|
||||||
hn = child.addChild(nn, search)
|
|
||||||
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
n.children[child.typ] = append(n.children[child.typ], child)
|
|
||||||
n.children[child.typ].Sort()
|
|
||||||
return hn
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) replaceChild(label, tail byte, child *node) {
|
|
||||||
for i := 0; i < len(n.children[child.typ]); i++ {
|
|
||||||
if n.children[child.typ][i].label == label && n.children[child.typ][i].tail == tail {
|
|
||||||
n.children[child.typ][i] = child
|
|
||||||
n.children[child.typ][i].label = label
|
|
||||||
n.children[child.typ][i].tail = tail
|
|
||||||
return
|
|
||||||
}
|
|
||||||
}
|
|
||||||
panic("chi: replacing missing child")
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) getEdge(ntyp nodeTyp, label, tail byte, prefix string) *node {
|
|
||||||
nds := n.children[ntyp]
|
|
||||||
for i := 0; i < len(nds); i++ {
|
|
||||||
if nds[i].label == label && nds[i].tail == tail {
|
|
||||||
if ntyp == ntRegexp && nds[i].prefix != prefix {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
return nds[i]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) setEndpoint(method methodTyp, handler http.Handler, pattern string) {
|
|
||||||
// Set the handler for the method type on the node
|
|
||||||
if n.endpoints == nil {
|
|
||||||
n.endpoints = make(endpoints)
|
|
||||||
}
|
|
||||||
|
|
||||||
paramKeys := patParamKeys(pattern)
|
|
||||||
|
|
||||||
if method&mSTUB == mSTUB {
|
|
||||||
n.endpoints.Value(mSTUB).handler = handler
|
|
||||||
}
|
|
||||||
if method&mALL == mALL {
|
|
||||||
h := n.endpoints.Value(mALL)
|
|
||||||
h.handler = handler
|
|
||||||
h.pattern = pattern
|
|
||||||
h.paramKeys = paramKeys
|
|
||||||
for _, m := range methodMap {
|
|
||||||
h := n.endpoints.Value(m)
|
|
||||||
h.handler = handler
|
|
||||||
h.pattern = pattern
|
|
||||||
h.paramKeys = paramKeys
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
h := n.endpoints.Value(method)
|
|
||||||
h.handler = handler
|
|
||||||
h.pattern = pattern
|
|
||||||
h.paramKeys = paramKeys
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) FindRoute(rctx *Context, method methodTyp, path string) (*node, endpoints, http.Handler) {
|
|
||||||
// Reset the context routing pattern and params
|
|
||||||
rctx.routePattern = ""
|
|
||||||
rctx.routeParams.Keys = rctx.routeParams.Keys[:0]
|
|
||||||
rctx.routeParams.Values = rctx.routeParams.Values[:0]
|
|
||||||
|
|
||||||
// Find the routing handlers for the path
|
|
||||||
rn := n.findRoute(rctx, method, path)
|
|
||||||
if rn == nil {
|
|
||||||
return nil, nil, nil
|
|
||||||
}
|
|
||||||
|
|
||||||
// Record the routing params in the request lifecycle
|
|
||||||
rctx.URLParams.Keys = append(rctx.URLParams.Keys, rctx.routeParams.Keys...)
|
|
||||||
rctx.URLParams.Values = append(rctx.URLParams.Values, rctx.routeParams.Values...)
|
|
||||||
|
|
||||||
// Record the routing pattern in the request lifecycle
|
|
||||||
if rn.endpoints[method].pattern != "" {
|
|
||||||
rctx.routePattern = rn.endpoints[method].pattern
|
|
||||||
rctx.RoutePatterns = append(rctx.RoutePatterns, rctx.routePattern)
|
|
||||||
}
|
|
||||||
|
|
||||||
return rn, rn.endpoints, rn.endpoints[method].handler
|
|
||||||
}
|
|
||||||
|
|
||||||
// Recursive edge traversal by checking all nodeTyp groups along the way.
|
|
||||||
// It's like searching through a multi-dimensional radix trie.
|
|
||||||
func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
|
|
||||||
nn := n
|
|
||||||
search := path
|
|
||||||
|
|
||||||
for t, nds := range nn.children {
|
|
||||||
ntyp := nodeTyp(t)
|
|
||||||
if len(nds) == 0 {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
var xn *node
|
|
||||||
xsearch := search
|
|
||||||
|
|
||||||
var label byte
|
|
||||||
if search != "" {
|
|
||||||
label = search[0]
|
|
||||||
}
|
|
||||||
|
|
||||||
switch ntyp {
|
|
||||||
case ntStatic:
|
|
||||||
xn = nds.findEdge(label)
|
|
||||||
if xn == nil || !strings.HasPrefix(xsearch, xn.prefix) {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
xsearch = xsearch[len(xn.prefix):]
|
|
||||||
|
|
||||||
case ntParam, ntRegexp:
|
|
||||||
// short-circuit and return no matching route for empty param values
|
|
||||||
if xsearch == "" {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
// serially loop through each node grouped by the tail delimiter
|
|
||||||
for idx := 0; idx < len(nds); idx++ {
|
|
||||||
xn = nds[idx]
|
|
||||||
|
|
||||||
// label for param nodes is the delimiter byte
|
|
||||||
p := strings.IndexByte(xsearch, xn.tail)
|
|
||||||
|
|
||||||
if p < 0 {
|
|
||||||
if xn.tail == '/' {
|
|
||||||
p = len(xsearch)
|
|
||||||
} else {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
} else if ntyp == ntRegexp && p == 0 {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
if ntyp == ntRegexp && xn.rex != nil {
|
|
||||||
if !xn.rex.MatchString(xsearch[:p]) {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
} else if strings.IndexByte(xsearch[:p], '/') != -1 {
|
|
||||||
// avoid a match across path segments
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
prevlen := len(rctx.routeParams.Values)
|
|
||||||
rctx.routeParams.Values = append(rctx.routeParams.Values, xsearch[:p])
|
|
||||||
xsearch = xsearch[p:]
|
|
||||||
|
|
||||||
if len(xsearch) == 0 {
|
|
||||||
if xn.isLeaf() {
|
|
||||||
h := xn.endpoints[method]
|
|
||||||
if h != nil && h.handler != nil {
|
|
||||||
rctx.routeParams.Keys = append(rctx.routeParams.Keys, h.paramKeys...)
|
|
||||||
return xn
|
|
||||||
}
|
|
||||||
|
|
||||||
// flag that the routing context found a route, but not a corresponding
|
|
||||||
// supported method
|
|
||||||
rctx.methodNotAllowed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// recursively find the next node on this branch
|
|
||||||
fin := xn.findRoute(rctx, method, xsearch)
|
|
||||||
if fin != nil {
|
|
||||||
return fin
|
|
||||||
}
|
|
||||||
|
|
||||||
// not found on this branch, reset vars
|
|
||||||
rctx.routeParams.Values = rctx.routeParams.Values[:prevlen]
|
|
||||||
xsearch = search
|
|
||||||
}
|
|
||||||
|
|
||||||
rctx.routeParams.Values = append(rctx.routeParams.Values, "")
|
|
||||||
|
|
||||||
default:
|
|
||||||
// catch-all nodes
|
|
||||||
rctx.routeParams.Values = append(rctx.routeParams.Values, search)
|
|
||||||
xn = nds[0]
|
|
||||||
xsearch = ""
|
|
||||||
}
|
|
||||||
|
|
||||||
if xn == nil {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
// did we find it yet?
|
|
||||||
if len(xsearch) == 0 {
|
|
||||||
if xn.isLeaf() {
|
|
||||||
h := xn.endpoints[method]
|
|
||||||
if h != nil && h.handler != nil {
|
|
||||||
rctx.routeParams.Keys = append(rctx.routeParams.Keys, h.paramKeys...)
|
|
||||||
return xn
|
|
||||||
}
|
|
||||||
|
|
||||||
// flag that the routing context found a route, but not a corresponding
|
|
||||||
// supported method
|
|
||||||
rctx.methodNotAllowed = true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// recursively find the next node..
|
|
||||||
fin := xn.findRoute(rctx, method, xsearch)
|
|
||||||
if fin != nil {
|
|
||||||
return fin
|
|
||||||
}
|
|
||||||
|
|
||||||
// Did not find final handler, let's remove the param here if it was set
|
|
||||||
if xn.typ > ntStatic {
|
|
||||||
if len(rctx.routeParams.Values) > 0 {
|
|
||||||
rctx.routeParams.Values = rctx.routeParams.Values[:len(rctx.routeParams.Values)-1]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) findEdge(ntyp nodeTyp, label byte) *node {
|
|
||||||
nds := n.children[ntyp]
|
|
||||||
num := len(nds)
|
|
||||||
idx := 0
|
|
||||||
|
|
||||||
switch ntyp {
|
|
||||||
case ntStatic, ntParam, ntRegexp:
|
|
||||||
i, j := 0, num-1
|
|
||||||
for i <= j {
|
|
||||||
idx = i + (j-i)/2
|
|
||||||
if label > nds[idx].label {
|
|
||||||
i = idx + 1
|
|
||||||
} else if label < nds[idx].label {
|
|
||||||
j = idx - 1
|
|
||||||
} else {
|
|
||||||
i = num // breaks cond
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if nds[idx].label != label {
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
return nds[idx]
|
|
||||||
|
|
||||||
default: // catch all
|
|
||||||
return nds[idx]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) isLeaf() bool {
|
|
||||||
return n.endpoints != nil
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) findPattern(pattern string) bool {
|
|
||||||
nn := n
|
|
||||||
for _, nds := range nn.children {
|
|
||||||
if len(nds) == 0 {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
n = nn.findEdge(nds[0].typ, pattern[0])
|
|
||||||
if n == nil {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
var idx int
|
|
||||||
var xpattern string
|
|
||||||
|
|
||||||
switch n.typ {
|
|
||||||
case ntStatic:
|
|
||||||
idx = longestPrefix(pattern, n.prefix)
|
|
||||||
if idx < len(n.prefix) {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
case ntParam, ntRegexp:
|
|
||||||
idx = strings.IndexByte(pattern, '}') + 1
|
|
||||||
|
|
||||||
case ntCatchAll:
|
|
||||||
idx = longestPrefix(pattern, "*")
|
|
||||||
|
|
||||||
default:
|
|
||||||
panic("chi: unknown node type")
|
|
||||||
}
|
|
||||||
|
|
||||||
xpattern = pattern[idx:]
|
|
||||||
if len(xpattern) == 0 {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
|
|
||||||
return n.findPattern(xpattern)
|
|
||||||
}
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) routes() []Route {
|
|
||||||
rts := []Route{}
|
|
||||||
|
|
||||||
n.walk(func(eps endpoints, subroutes Routes) bool {
|
|
||||||
if eps[mSTUB] != nil && eps[mSTUB].handler != nil && subroutes == nil {
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
// Group methodHandlers by unique patterns
|
|
||||||
pats := make(map[string]endpoints)
|
|
||||||
|
|
||||||
for mt, h := range eps {
|
|
||||||
if h.pattern == "" {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
p, ok := pats[h.pattern]
|
|
||||||
if !ok {
|
|
||||||
p = endpoints{}
|
|
||||||
pats[h.pattern] = p
|
|
||||||
}
|
|
||||||
p[mt] = h
|
|
||||||
}
|
|
||||||
|
|
||||||
for p, mh := range pats {
|
|
||||||
hs := make(map[string]http.Handler)
|
|
||||||
if mh[mALL] != nil && mh[mALL].handler != nil {
|
|
||||||
hs["*"] = mh[mALL].handler
|
|
||||||
}
|
|
||||||
|
|
||||||
for mt, h := range mh {
|
|
||||||
if h.handler == nil {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
m := methodTypString(mt)
|
|
||||||
if m == "" {
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
hs[m] = h.handler
|
|
||||||
}
|
|
||||||
|
|
||||||
rt := Route{p, hs, subroutes}
|
|
||||||
rts = append(rts, rt)
|
|
||||||
}
|
|
||||||
|
|
||||||
return false
|
|
||||||
})
|
|
||||||
|
|
||||||
return rts
|
|
||||||
}
|
|
||||||
|
|
||||||
func (n *node) walk(fn func(eps endpoints, subroutes Routes) bool) bool {
|
|
||||||
// Visit the leaf values if any
|
|
||||||
if (n.endpoints != nil || n.subroutes != nil) && fn(n.endpoints, n.subroutes) {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
|
|
||||||
// Recurse on the children
|
|
||||||
for _, ns := range n.children {
|
|
||||||
for _, cn := range ns {
|
|
||||||
if cn.walk(fn) {
|
|
||||||
return true
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return false
|
|
||||||
}
|
|
||||||
|
|
||||||
// patNextSegment returns the next segment details from a pattern:
|
|
||||||
// node type, param key, regexp string, param tail byte, param starting index, param ending index
|
|
||||||
func patNextSegment(pattern string) (nodeTyp, string, string, byte, int, int) {
|
|
||||||
ps := strings.Index(pattern, "{")
|
|
||||||
ws := strings.Index(pattern, "*")
|
|
||||||
|
|
||||||
if ps < 0 && ws < 0 {
|
|
||||||
return ntStatic, "", "", 0, 0, len(pattern) // we return the entire thing
|
|
||||||
}
|
|
||||||
|
|
||||||
// Sanity check
|
|
||||||
if ps >= 0 && ws >= 0 && ws < ps {
|
|
||||||
panic("chi: wildcard '*' must be the last pattern in a route, otherwise use a '{param}'")
|
|
||||||
}
|
|
||||||
|
|
||||||
var tail byte = '/' // Default endpoint tail to / byte
|
|
||||||
|
|
||||||
if ps >= 0 {
|
|
||||||
// Param/Regexp pattern is next
|
|
||||||
nt := ntParam
|
|
||||||
|
|
||||||
// Read to closing } taking into account opens and closes in curl count (cc)
|
|
||||||
cc := 0
|
|
||||||
pe := ps
|
|
||||||
for i, c := range pattern[ps:] {
|
|
||||||
if c == '{' {
|
|
||||||
cc++
|
|
||||||
} else if c == '}' {
|
|
||||||
cc--
|
|
||||||
if cc == 0 {
|
|
||||||
pe = ps + i
|
|
||||||
break
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if pe == ps {
|
|
||||||
panic("chi: route param closing delimiter '}' is missing")
|
|
||||||
}
|
|
||||||
|
|
||||||
key := pattern[ps+1 : pe]
|
|
||||||
pe++ // set end to next position
|
|
||||||
|
|
||||||
if pe < len(pattern) {
|
|
||||||
tail = pattern[pe]
|
|
||||||
}
|
|
||||||
|
|
||||||
var rexpat string
|
|
||||||
if idx := strings.Index(key, ":"); idx >= 0 {
|
|
||||||
nt = ntRegexp
|
|
||||||
rexpat = key[idx+1:]
|
|
||||||
key = key[:idx]
|
|
||||||
}
|
|
||||||
|
|
||||||
if len(rexpat) > 0 {
|
|
||||||
if rexpat[0] != '^' {
|
|
||||||
rexpat = "^" + rexpat
|
|
||||||
}
|
|
||||||
if rexpat[len(rexpat)-1] != '$' {
|
|
||||||
rexpat += "$"
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return nt, key, rexpat, tail, ps, pe
|
|
||||||
}
|
|
||||||
|
|
||||||
// Wildcard pattern as finale
|
|
||||||
if ws < len(pattern)-1 {
|
|
||||||
panic("chi: wildcard '*' must be the last value in a route. trim trailing text or use a '{param}' instead")
|
|
||||||
}
|
|
||||||
return ntCatchAll, "*", "", 0, ws, len(pattern)
|
|
||||||
}
|
|
||||||
|
|
||||||
func patParamKeys(pattern string) []string {
|
|
||||||
pat := pattern
|
|
||||||
paramKeys := []string{}
|
|
||||||
for {
|
|
||||||
ptyp, paramKey, _, _, _, e := patNextSegment(pat)
|
|
||||||
if ptyp == ntStatic {
|
|
||||||
return paramKeys
|
|
||||||
}
|
|
||||||
for i := 0; i < len(paramKeys); i++ {
|
|
||||||
if paramKeys[i] == paramKey {
|
|
||||||
panic(fmt.Sprintf("chi: routing pattern '%s' contains duplicate param key, '%s'", pattern, paramKey))
|
|
||||||
}
|
|
||||||
}
|
|
||||||
paramKeys = append(paramKeys, paramKey)
|
|
||||||
pat = pat[e:]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
// longestPrefix finds the length of the shared prefix
|
|
||||||
// of two strings
|
|
||||||
func longestPrefix(k1, k2 string) int {
|
|
||||||
max := len(k1)
|
|
||||||
if l := len(k2); l < max {
|
|
||||||
max = l
|
|
||||||
}
|
|
||||||
var i int
|
|
||||||
for i = 0; i < max; i++ {
|
|
||||||
if k1[i] != k2[i] {
|
|
||||||
break
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return i
|
|
||||||
}
|
|
||||||
|
|
||||||
func methodTypString(method methodTyp) string {
|
|
||||||
for s, t := range methodMap {
|
|
||||||
if method == t {
|
|
||||||
return s
|
|
||||||
}
|
|
||||||
}
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
|
|
||||||
type nodes []*node
|
|
||||||
|
|
||||||
// Sort the list of nodes by label
|
|
||||||
func (ns nodes) Sort() { sort.Sort(ns); ns.tailSort() }
|
|
||||||
func (ns nodes) Len() int { return len(ns) }
|
|
||||||
func (ns nodes) Swap(i, j int) { ns[i], ns[j] = ns[j], ns[i] }
|
|
||||||
func (ns nodes) Less(i, j int) bool { return ns[i].label < ns[j].label }
|
|
||||||
|
|
||||||
// tailSort pushes nodes with '/' as the tail to the end of the list for param nodes.
|
|
||||||
// The list order determines the traversal order.
|
|
||||||
func (ns nodes) tailSort() {
|
|
||||||
for i := len(ns) - 1; i >= 0; i-- {
|
|
||||||
if ns[i].typ > ntStatic && ns[i].tail == '/' {
|
|
||||||
ns.Swap(i, len(ns)-1)
|
|
||||||
return
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (ns nodes) findEdge(label byte) *node {
|
|
||||||
num := len(ns)
|
|
||||||
idx := 0
|
|
||||||
i, j := 0, num-1
|
|
||||||
for i <= j {
|
|
||||||
idx = i + (j-i)/2
|
|
||||||
if label > ns[idx].label {
|
|
||||||
i = idx + 1
|
|
||||||
} else if label < ns[idx].label {
|
|
||||||
j = idx - 1
|
|
||||||
} else {
|
|
||||||
i = num // breaks cond
|
|
||||||
}
|
|
||||||
}
|
|
||||||
if ns[idx].label != label {
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
return ns[idx]
|
|
||||||
}
|
|
||||||
|
|
||||||
// Route describes the details of a routing handler.
|
|
||||||
// Handlers map key is an HTTP method
|
|
||||||
type Route struct {
|
|
||||||
Pattern string
|
|
||||||
Handlers map[string]http.Handler
|
|
||||||
SubRoutes Routes
|
|
||||||
}
|
|
||||||
|
|
||||||
// WalkFunc is the type of the function called for each method and route visited by Walk.
|
|
||||||
type WalkFunc func(method string, route string, handler http.Handler, middlewares ...func(http.Handler) http.Handler) error
|
|
||||||
|
|
||||||
// Walk walks any router tree that implements Routes interface.
|
|
||||||
func Walk(r Routes, walkFn WalkFunc) error {
|
|
||||||
return walk(r, walkFn, "")
|
|
||||||
}
|
|
||||||
|
|
||||||
func walk(r Routes, walkFn WalkFunc, parentRoute string, parentMw ...func(http.Handler) http.Handler) error {
|
|
||||||
for _, route := range r.Routes() {
|
|
||||||
mws := make([]func(http.Handler) http.Handler, len(parentMw))
|
|
||||||
copy(mws, parentMw)
|
|
||||||
mws = append(mws, r.Middlewares()...)
|
|
||||||
|
|
||||||
if route.SubRoutes != nil {
|
|
||||||
if err := walk(route.SubRoutes, walkFn, parentRoute+route.Pattern, mws...); err != nil {
|
|
||||||
return err
|
|
||||||
}
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
for method, handler := range route.Handlers {
|
|
||||||
if method == "*" {
|
|
||||||
// Ignore a "catchAll" method, since we pass down all the specific methods for each route.
|
|
||||||
continue
|
|
||||||
}
|
|
||||||
|
|
||||||
fullRoute := parentRoute + route.Pattern
|
|
||||||
fullRoute = strings.Replace(fullRoute, "/*/", "/", -1)
|
|
||||||
|
|
||||||
if chain, ok := handler.(*ChainHandler); ok {
|
|
||||||
if err := walkFn(method, fullRoute, chain.Endpoint, append(mws, chain.Middlewares...)...); err != nil {
|
|
||||||
return err
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
if err := walkFn(method, fullRoute, handler, mws...); err != nil {
|
|
||||||
return err
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return nil
|
|
||||||
}
|
|
||||||
|
|
@ -4,7 +4,7 @@ import (
|
||||||
"net/http"
|
"net/http"
|
||||||
"path"
|
"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.
|
// 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.
|
// Compressor represents a set of encoding configurations.
|
||||||
type Compressor struct {
|
type Compressor struct {
|
||||||
level int // The compression level.
|
|
||||||
// The mapping of encoder names to encoder functions.
|
// The mapping of encoder names to encoder functions.
|
||||||
encoders map[string]EncoderFunc
|
encoders map[string]EncoderFunc
|
||||||
// The mapping of pooled encoders to pools.
|
// The mapping of pooled encoders to pools.
|
||||||
|
|
@ -55,6 +54,7 @@ type Compressor struct {
|
||||||
allowedWildcards map[string]struct{}
|
allowedWildcards map[string]struct{}
|
||||||
// The list of encoders in order of decreasing precedence.
|
// The list of encoders in order of decreasing precedence.
|
||||||
encodingPrecedence []string
|
encodingPrecedence []string
|
||||||
|
level int // The compression level.
|
||||||
}
|
}
|
||||||
|
|
||||||
// NewCompressor creates a new Compressor that will handle encoding responses.
|
// 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,
|
// The streaming encoder writer to be used if there is one. Otherwise,
|
||||||
// this is just the normal writer.
|
// this is just the normal writer.
|
||||||
w io.Writer
|
w io.Writer
|
||||||
encoding string
|
|
||||||
contentTypes map[string]struct{}
|
contentTypes map[string]struct{}
|
||||||
contentWildcards map[string]struct{}
|
contentWildcards map[string]struct{}
|
||||||
|
encoding string
|
||||||
wroteHeader bool
|
wroteHeader bool
|
||||||
compressable bool
|
compressable bool
|
||||||
}
|
}
|
||||||
|
|
@ -3,7 +3,7 @@ package middleware
|
||||||
import (
|
import (
|
||||||
"net/http"
|
"net/http"
|
||||||
|
|
||||||
"github.com/go-chi/chi"
|
"github.com/go-chi/chi/v5"
|
||||||
)
|
)
|
||||||
|
|
||||||
// GetHead automatically route undefined HEAD requests to GET handlers.
|
// GetHead automatically route undefined HEAD requests to GET handlers.
|
||||||
20
vendor/github.com/go-chi/chi/v5/middleware/page_route.go
generated
vendored
Normal file
20
vendor/github.com/go-chi/chi/v5/middleware/page_route.go
generated
vendored
Normal 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
vendor/github.com/go-chi/chi/v5/middleware/path_rewrite.go
generated
vendored
Normal file
16
vendor/github.com/go-chi/chi/v5/middleware/path_rewrite.go
generated
vendored
Normal 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"
|
||||||
"net/http/pprof"
|
"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.
|
// 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("/pprof/trace", pprof.Trace)
|
||||||
r.HandleFunc("/vars", expVars)
|
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
|
return r
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
@ -12,7 +12,7 @@ var xForwardedFor = http.CanonicalHeaderKey("X-Forwarded-For")
|
||||||
var xRealIP = http.CanonicalHeaderKey("X-Real-IP")
|
var xRealIP = http.CanonicalHeaderKey("X-Real-IP")
|
||||||
|
|
||||||
// RealIP is a middleware that sets a http.Request's RemoteAddr to the results
|
// RealIP is a middleware that sets a http.Request's RemoteAddr to the results
|
||||||
// of parsing either the X-Forwarded-For header or the X-Real-IP header (in that
|
// of parsing either the X-Real-IP header or the X-Forwarded-For header (in that
|
||||||
// order).
|
// order).
|
||||||
//
|
//
|
||||||
// This middleware should be inserted fairly early in the middleware stack to
|
// This middleware should be inserted fairly early in the middleware stack to
|
||||||
|
|
@ -124,17 +124,18 @@ func (s prettyStack) decorateFuncCallLine(line string, useColor bool, num int) (
|
||||||
// addr := line[idx:]
|
// addr := line[idx:]
|
||||||
method := ""
|
method := ""
|
||||||
|
|
||||||
idx = strings.LastIndex(pkg, string(os.PathSeparator))
|
if idx := strings.LastIndex(pkg, string(os.PathSeparator)); idx < 0 {
|
||||||
if idx < 0 {
|
if idx := strings.Index(pkg, "."); idx > 0 {
|
||||||
idx = strings.Index(pkg, ".")
|
method = pkg[idx:]
|
||||||
method = pkg[idx:]
|
pkg = pkg[0:idx]
|
||||||
pkg = pkg[0:idx]
|
}
|
||||||
} else {
|
} else {
|
||||||
method = pkg[idx+1:]
|
method = pkg[idx+1:]
|
||||||
pkg = pkg[0 : idx+1]
|
pkg = pkg[0 : idx+1]
|
||||||
idx = strings.Index(method, ".")
|
if idx := strings.Index(method, "."); idx > 0 {
|
||||||
pkg += method[0:idx]
|
pkg += method[0:idx]
|
||||||
method = method[idx:]
|
method = method[idx:]
|
||||||
|
}
|
||||||
}
|
}
|
||||||
pkgColor := nYellow
|
pkgColor := nYellow
|
||||||
methodColor := bGreen
|
methodColor := bGreen
|
||||||
|
|
@ -112,9 +112,9 @@ func (hr HeaderRouter) Handler(next http.Handler) http.Handler {
|
||||||
}
|
}
|
||||||
|
|
||||||
type HeaderRoute struct {
|
type HeaderRoute struct {
|
||||||
MatchAny []Pattern
|
|
||||||
MatchOne Pattern
|
|
||||||
Middleware func(next http.Handler) http.Handler
|
Middleware func(next http.Handler) http.Handler
|
||||||
|
MatchOne Pattern
|
||||||
|
MatchAny []Pattern
|
||||||
}
|
}
|
||||||
|
|
||||||
func (r HeaderRoute) IsMatch(value string) bool {
|
func (r HeaderRoute) IsMatch(value string) bool {
|
||||||
|
|
@ -4,7 +4,7 @@ import (
|
||||||
"fmt"
|
"fmt"
|
||||||
"net/http"
|
"net/http"
|
||||||
|
|
||||||
"github.com/go-chi/chi"
|
"github.com/go-chi/chi/v5"
|
||||||
)
|
)
|
||||||
|
|
||||||
// StripSlashes is a middleware that will match request paths with a trailing
|
// StripSlashes is a middleware that will match request paths with a trailing
|
||||||
|
|
@ -18,10 +18,10 @@ var (
|
||||||
|
|
||||||
// ThrottleOpts represents a set of throttling options.
|
// ThrottleOpts represents a set of throttling options.
|
||||||
type ThrottleOpts struct {
|
type ThrottleOpts struct {
|
||||||
|
RetryAfterFn func(ctxDone bool) time.Duration
|
||||||
Limit int
|
Limit int
|
||||||
BacklogLimit int
|
BacklogLimit int
|
||||||
BacklogTimeout time.Duration
|
BacklogTimeout time.Duration
|
||||||
RetryAfterFn func(ctxDone bool) time.Duration
|
|
||||||
}
|
}
|
||||||
|
|
||||||
// Throttle is a middleware that limits number of currently processed requests
|
// Throttle is a middleware that limits number of currently processed requests
|
||||||
|
|
@ -119,8 +119,8 @@ type token struct{}
|
||||||
type throttler struct {
|
type throttler struct {
|
||||||
tokens chan token
|
tokens chan token
|
||||||
backlogTokens chan token
|
backlogTokens chan token
|
||||||
backlogTimeout time.Duration
|
|
||||||
retryAfterFn func(ctxDone bool) time.Duration
|
retryAfterFn func(ctxDone bool) time.Duration
|
||||||
|
backlogTimeout time.Duration
|
||||||
}
|
}
|
||||||
|
|
||||||
// setRetryAfterHeaderIfNeeded sets Retry-After HTTP header if corresponding retryAfterFn option of throttler is initialized.
|
// setRetryAfterHeaderIfNeeded sets Retry-After HTTP header if corresponding retryAfterFn option of throttler is initialized.
|
||||||
|
|
@ -5,7 +5,7 @@ import (
|
||||||
"net/http"
|
"net/http"
|
||||||
"strings"
|
"strings"
|
||||||
|
|
||||||
"github.com/go-chi/chi"
|
"github.com/go-chi/chi/v5"
|
||||||
)
|
)
|
||||||
|
|
||||||
var (
|
var (
|
||||||
|
|
@ -19,15 +19,25 @@ func NewWrapResponseWriter(w http.ResponseWriter, protoMajor int) WrapResponseWr
|
||||||
|
|
||||||
if protoMajor == 2 {
|
if protoMajor == 2 {
|
||||||
_, ps := w.(http.Pusher)
|
_, ps := w.(http.Pusher)
|
||||||
if fl || ps {
|
if fl && ps {
|
||||||
return &http2FancyWriter{bw}
|
return &http2FancyWriter{bw}
|
||||||
}
|
}
|
||||||
} else {
|
} else {
|
||||||
_, hj := w.(http.Hijacker)
|
_, hj := w.(http.Hijacker)
|
||||||
_, rf := w.(io.ReaderFrom)
|
_, rf := w.(io.ReaderFrom)
|
||||||
if fl || hj || rf {
|
if fl && hj && rf {
|
||||||
return &httpFancyWriter{bw}
|
return &httpFancyWriter{bw}
|
||||||
}
|
}
|
||||||
|
if fl && hj {
|
||||||
|
return &flushHijackWriter{bw}
|
||||||
|
}
|
||||||
|
if hj {
|
||||||
|
return &hijackWriter{bw}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if fl {
|
||||||
|
return &flushWriter{bw}
|
||||||
}
|
}
|
||||||
|
|
||||||
return &bw
|
return &bw
|
||||||
|
|
@ -107,6 +117,50 @@ func (b *basicWriter) Unwrap() http.ResponseWriter {
|
||||||
return b.ResponseWriter
|
return b.ResponseWriter
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// flushWriter ...
|
||||||
|
type flushWriter struct {
|
||||||
|
basicWriter
|
||||||
|
}
|
||||||
|
|
||||||
|
func (f *flushWriter) Flush() {
|
||||||
|
f.wroteHeader = true
|
||||||
|
fl := f.basicWriter.ResponseWriter.(http.Flusher)
|
||||||
|
fl.Flush()
|
||||||
|
}
|
||||||
|
|
||||||
|
var _ http.Flusher = &flushWriter{}
|
||||||
|
|
||||||
|
// hijackWriter ...
|
||||||
|
type hijackWriter struct {
|
||||||
|
basicWriter
|
||||||
|
}
|
||||||
|
|
||||||
|
func (f *hijackWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
|
||||||
|
hj := f.basicWriter.ResponseWriter.(http.Hijacker)
|
||||||
|
return hj.Hijack()
|
||||||
|
}
|
||||||
|
|
||||||
|
var _ http.Hijacker = &hijackWriter{}
|
||||||
|
|
||||||
|
// flushHijackWriter ...
|
||||||
|
type flushHijackWriter struct {
|
||||||
|
basicWriter
|
||||||
|
}
|
||||||
|
|
||||||
|
func (f *flushHijackWriter) Flush() {
|
||||||
|
f.wroteHeader = true
|
||||||
|
fl := f.basicWriter.ResponseWriter.(http.Flusher)
|
||||||
|
fl.Flush()
|
||||||
|
}
|
||||||
|
|
||||||
|
func (f *flushHijackWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
|
||||||
|
hj := f.basicWriter.ResponseWriter.(http.Hijacker)
|
||||||
|
return hj.Hijack()
|
||||||
|
}
|
||||||
|
|
||||||
|
var _ http.Flusher = &flushHijackWriter{}
|
||||||
|
var _ http.Hijacker = &flushHijackWriter{}
|
||||||
|
|
||||||
// httpFancyWriter is a HTTP writer that additionally satisfies
|
// httpFancyWriter is a HTTP writer that additionally satisfies
|
||||||
// http.Flusher, http.Hijacker, and io.ReaderFrom. It exists for the common case
|
// http.Flusher, http.Hijacker, and io.ReaderFrom. It exists for the common case
|
||||||
// of wrapping the http.ResponseWriter that package http gives you, in order to
|
// of wrapping the http.ResponseWriter that package http gives you, in order to
|
||||||
|
|
@ -126,6 +180,10 @@ func (f *httpFancyWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
|
||||||
return hj.Hijack()
|
return hj.Hijack()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func (f *http2FancyWriter) Push(target string, opts *http.PushOptions) error {
|
||||||
|
return f.basicWriter.ResponseWriter.(http.Pusher).Push(target, opts)
|
||||||
|
}
|
||||||
|
|
||||||
func (f *httpFancyWriter) ReadFrom(r io.Reader) (int64, error) {
|
func (f *httpFancyWriter) ReadFrom(r io.Reader) (int64, error) {
|
||||||
if f.basicWriter.tee != nil {
|
if f.basicWriter.tee != nil {
|
||||||
n, err := io.Copy(&f.basicWriter, r)
|
n, err := io.Copy(&f.basicWriter, r)
|
||||||
|
|
@ -141,6 +199,7 @@ func (f *httpFancyWriter) ReadFrom(r io.Reader) (int64, error) {
|
||||||
|
|
||||||
var _ http.Flusher = &httpFancyWriter{}
|
var _ http.Flusher = &httpFancyWriter{}
|
||||||
var _ http.Hijacker = &httpFancyWriter{}
|
var _ http.Hijacker = &httpFancyWriter{}
|
||||||
|
var _ http.Pusher = &http2FancyWriter{}
|
||||||
var _ io.ReaderFrom = &httpFancyWriter{}
|
var _ io.ReaderFrom = &httpFancyWriter{}
|
||||||
|
|
||||||
// http2FancyWriter is a HTTP2 writer that additionally satisfies
|
// http2FancyWriter is a HTTP2 writer that additionally satisfies
|
||||||
|
|
@ -157,9 +216,4 @@ func (f *http2FancyWriter) Flush() {
|
||||||
fl.Flush()
|
fl.Flush()
|
||||||
}
|
}
|
||||||
|
|
||||||
func (f *http2FancyWriter) Push(target string, opts *http.PushOptions) error {
|
|
||||||
return f.basicWriter.ResponseWriter.(http.Pusher).Push(target, opts)
|
|
||||||
}
|
|
||||||
|
|
||||||
var _ http.Flusher = &http2FancyWriter{}
|
var _ http.Flusher = &http2FancyWriter{}
|
||||||
var _ http.Pusher = &http2FancyWriter{}
|
|
||||||
5
vendor/modules.txt
vendored
5
vendor/modules.txt
vendored
|
|
@ -272,13 +272,10 @@ github.com/gliderlabs/ssh
|
||||||
# github.com/go-asn1-ber/asn1-ber v1.5.3
|
# github.com/go-asn1-ber/asn1-ber v1.5.3
|
||||||
## explicit
|
## explicit
|
||||||
github.com/go-asn1-ber/asn1-ber
|
github.com/go-asn1-ber/asn1-ber
|
||||||
# github.com/go-chi/chi v1.5.4
|
|
||||||
## explicit
|
|
||||||
github.com/go-chi/chi
|
|
||||||
github.com/go-chi/chi/middleware
|
|
||||||
# github.com/go-chi/chi/v5 v5.0.4
|
# github.com/go-chi/chi/v5 v5.0.4
|
||||||
## explicit
|
## explicit
|
||||||
github.com/go-chi/chi/v5
|
github.com/go-chi/chi/v5
|
||||||
|
github.com/go-chi/chi/v5/middleware
|
||||||
# github.com/go-chi/cors v1.2.0
|
# github.com/go-chi/cors v1.2.0
|
||||||
## explicit
|
## explicit
|
||||||
github.com/go-chi/cors
|
github.com/go-chi/cors
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue