Move macaron to chi (#14293)

Use [chi](https://github.com/go-chi/chi) instead of the forked [macaron](https://gitea.com/macaron/macaron). Since macaron and chi have conflicts with session share, this big PR becomes a have-to thing. According my previous idea, we can replace macaron step by step but I'm wrong. :( Below is a list of big changes on this PR.

- [x] Define `context.ResponseWriter` interface with an implementation `context.Response`.
- [x] Use chi instead of macaron, and also a customize `Route` to wrap chi so that the router usage is similar as before.
- [x] Create different routers for `web`, `api`, `internal` and `install` so that the codes will be more clear and no magic .
- [x] Use https://github.com/unrolled/render instead of macaron's internal render
- [x] Use https://github.com/NYTimes/gziphandler instead of https://gitea.com/macaron/gzip
- [x] Use https://gitea.com/go-chi/session which is a modified version of https://gitea.com/macaron/session and removed `nodb` support since it will not be maintained. **BREAK**
- [x] Use https://gitea.com/go-chi/captcha which is a modified version of https://gitea.com/macaron/captcha
- [x] Use https://gitea.com/go-chi/cache which is a modified version of https://gitea.com/macaron/cache
- [x] Use https://gitea.com/go-chi/binding which is a modified version of https://gitea.com/macaron/binding
- [x] Use https://github.com/go-chi/cors instead of https://gitea.com/macaron/cors
- [x] Dropped https://gitea.com/macaron/i18n and make a new one in `code.gitea.io/gitea/modules/translation`
- [x] Move validation form structs from `code.gitea.io/gitea/modules/auth` to `code.gitea.io/gitea/modules/forms` to avoid dependency cycle.
- [x] Removed macaron log service because it's not need any more. **BREAK**
- [x] All form structs have to be get by `web.GetForm(ctx)` in the route function but not as a function parameter on routes definition.
- [x] Move Git HTTP protocol implementation to use routers directly.
- [x] Fix the problem that chi routes don't support trailing slash but macaron did.
- [x] `/api/v1/swagger` now will be redirect to `/api/swagger` but not render directly so that `APIContext` will not create a html render. 

Notices:
- Chi router don't support request with trailing slash
- Integration test `TestUserHeatmap` maybe mysql version related. It's failed on my macOS(mysql 5.7.29 installed via brew) but succeed on CI.

Co-authored-by: 6543 <6543@obermui.de>

.golangci.yml

@@ -70,7 +70,7 @@ issues:
     - path: modules/log/
       linters:
         - errcheck
-    - path: routers/routes/macaron.go
+    - path: routers/routes/web.go
       linters:
         - dupl
     - path: routers/api/v1/repo/issue_subscription.go

cmd/dump.go

@@ -21,7 +21,7 @@ import (
 	"code.gitea.io/gitea/modules/storage"
 	"code.gitea.io/gitea/modules/util"
 
-	"gitea.com/macaron/session"
+	"gitea.com/go-chi/session"
 	archiver "github.com/mholt/archiver/v3"
 	"github.com/urfave/cli"
 )

cmd/web.go

@@ -102,8 +102,7 @@ func runWeb(ctx *cli.Context) error {
 				return err
 			}
 		}
-		c := routes.NewChi()
-		routes.RegisterInstallRoute(c)
+		c := routes.InstallRoutes()
 		err := listen(c, false)
 		select {
 		case <-graceful.GetManager().IsShutdown():
@@ -134,11 +133,9 @@ func runWeb(ctx *cli.Context) error {
 			return err
 		}
 	}
-	// Set up Chi routes
-	c := routes.NewChi()
-	c.Mount("/", routes.NormalRoutes())
-	routes.DelegateToMacaron(c)
 
+	// Set up Chi routes
+	c := routes.NormalRoutes()
 	err := listen(c, true)
 	<-graceful.GetManager().Done()
 	log.Info("PID: %d Gitea Web Finished", os.Getpid())

contrib/pr/checkout.go

@@ -116,9 +116,7 @@ func runPR() {
 	//routers.GlobalInit()
 	external.RegisterParsers()
 	markup.Init()
-	c := routes.NewChi()
-	c.Mount("/", routes.NormalRoutes())
-	routes.DelegateToMacaron(c)
+	c := routes.NormalRoutes()
 
 	log.Printf("[PR] Ready for testing !\n")
 	log.Printf("[PR] Login with user1, user2, user3, ... with pass: password\n")

docs/content/doc/advanced/config-cheat-sheet.en-us.md

@@ -549,7 +549,7 @@ Define allowed algorithms and their minimum key length (use -1 to disable a type
 
 ## Session (`session`)
 
-- `PROVIDER`: **memory**: Session engine provider \[memory, file, redis, mysql, couchbase, memcache, nodb, postgres\].
+- `PROVIDER`: **memory**: Session engine provider \[memory, file, redis, mysql, couchbase, memcache, postgres\].
 - `PROVIDER_CONFIG`: **data/sessions**: For file, the root path; for others, the connection string.
 - `COOKIE_SECURE`: **false**: Enable this to force using HTTPS for all session access.
 - `COOKIE_NAME`: **i\_like\_gitea**: The name of the cookie used for the session ID.
@@ -609,16 +609,14 @@ Default templates for project boards:
 - `MODE`: **console**: Logging mode. For multiple modes, use a comma to separate values. You can configure each mode in per mode log subsections `\[log.modename\]`. By default the file mode will log to `$ROOT_PATH/gitea.log`.
 - `LEVEL`: **Info**: General log level. \[Trace, Debug, Info, Warn, Error, Critical, Fatal, None\]
 - `STACKTRACE_LEVEL`: **None**: Default log level at which to log create stack traces. \[Trace, Debug, Info, Warn, Error, Critical, Fatal, None\]
-- `REDIRECT_MACARON_LOG`: **false**: Redirects the Macaron log to its own logger or the default logger.
-- `MACARON`: **file**: Logging mode for the macaron logger, use a comma to separate values. Configure each mode in per mode log subsections `\[log.modename.macaron\]`. By default the file mode will log to `$ROOT_PATH/macaron.log`. (If you set this to `,` it will log to default gitea logger.)
 - `ROUTER_LOG_LEVEL`: **Info**: The log level that the router should log at. (If you are setting the access log, its recommended to place this at Debug.)
 - `ROUTER`: **console**: The mode or name of the log the router should log to. (If you set this to `,` it will log to default gitea logger.)
 NB: You must `REDIRECT_MACARON_LOG` and have `DISABLE_ROUTER_LOG` set to `false` for this option to take effect. Configure each mode in per mode log subsections `\[log.modename.router\]`.
 - `ENABLE_ACCESS_LOG`: **false**: Creates an access.log in NCSA common log format, or as per the following template
 - `ACCESS`: **file**: Logging mode for the access logger, use a comma to separate values. Configure each mode in per mode log subsections `\[log.modename.access\]`. By default the file mode will log to `$ROOT_PATH/access.log`. (If you set this to `,` it will log to the default gitea logger.)
 - `ACCESS_LOG_TEMPLATE`: **`{{.Ctx.RemoteAddr}} - {{.Identity}} {{.Start.Format "[02/Jan/2006:15:04:05 -0700]" }} "{{.Ctx.Req.Method}} {{.Ctx.Req.URL.RequestURI}} {{.Ctx.Req.Proto}}" {{.ResponseWriter.Status}} {{.ResponseWriter.Size}} "{{.Ctx.Req.Referer}}\" \"{{.Ctx.Req.UserAgent}}"`**: Sets the template used to create the access log.
   - The following variables are available:
-  - `Ctx`: the `macaron.Context` of the request.
+  - `Ctx`: the `context.Context` of the request.
   - `Identity`: the SignedUserName or `"-"` if not logged in.
   - `Start`: the start time of the request.
   - `ResponseWriter`: the responseWriter from the request.

docs/content/doc/advanced/logging-documentation.en-us.md

@@ -67,40 +67,11 @@ The provider type of the sublogger can be set using the `MODE` value in
 its subsection, but will default to the name. This allows you to have
 multiple subloggers that will log to files.
 
-### The "Macaron" logger
-
-By default Macaron will log to its own go `log` instance. This writes
-to `os.Stdout`. You can redirect this log to a Gitea configurable logger
-through setting the `REDIRECT_MACARON_LOG` setting in the `[log]`
-section which you can configure the outputs of by setting the `MACARON`
-value in the `[log]` section of the configuration. `MACARON` defaults
-to `file` if unset.
-
-Please note, the macaron logger will log at `INFO` level, setting the
-`LEVEL` of this logger to `WARN` or above will result in no macaron logs.
-
-Each output sublogger for this logger is configured in
-`[log.sublogger.macaron]` sections. There are certain default values
-which will not be inherited from the `[log]` or relevant
-`[log.sublogger]` sections:
-
-- `FLAGS` is `stdflags` (Equal to
-  `date,time,medfile,shortfuncname,levelinitial`)
-- `FILE_NAME` will default to `%(ROOT_PATH)/macaron.log`
-- `EXPRESSION` will default to `""`
-- `PREFIX` will default to `""`
-
-NB: You can redirect the macaron logger to send its events to the gitea
-log using the value: `MACARON = ,`
-
 ### The "Router" logger
 
-There are two types of Router log. By default Macaron send its own
-router log which will be directed to Macaron's go `log`, however if you
-`REDIRECT_MACARON_LOG` you will enable Gitea's router log. You can
-disable both types of Router log by setting `DISABLE_ROUTER_LOG`.
+You can disable Router log by setting `DISABLE_ROUTER_LOG`.
 
-If you enable the redirect, you can configure the outputs of this
+You can configure the outputs of this
 router log by setting the `ROUTER` value in the `[log]` section of the
 configuration. `ROUTER` will default to `console` if unset. The Gitea
 Router logs the same data as the Macaron log but has slightly different
@@ -162,11 +133,11 @@ This value represent a go template. It's default value is:
 
 The template is passed following options:
 
-- `Ctx` is the `macaron.Context`
+- `Ctx` is the `context.Context`
 - `Identity` is the `SignedUserName` or `"-"` if the user is not logged
   in
 - `Start` is the start time of the request
-- `ResponseWriter` is the `macaron.ResponseWriter`
+- `ResponseWriter` is the `http.ResponseWriter`
 
 Caution must be taken when changing this template as it runs outside of
 the standard panic recovery trap. The template should also be as simple

docs/content/page/index.en-us.md

@@ -267,7 +267,7 @@ Windows, on architectures like amd64, i386, ARM, PowerPC, and others.
 
 ## Components
 
-* Web framework: [Macaron](http://go-macaron.com/)
+* Web framework: [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * UI components:
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.fr-fr.md

@@ -254,7 +254,7 @@ Le but de ce projet est de fournir de la manière la plus simple, la plus rapide
 
 ## Composants
 
-* Framework web : [Macaron](http://go-macaron.com/)
+* Framework web : [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * Interface graphique :
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.zh-cn.md

@@ -47,7 +47,7 @@ Gitea的首要目标是创建一个极易安装，运行非常快速，安装和
 
 ## 组件
 
-* Web框架： [Macaron](http://go-macaron.com/)
+* Web框架： [Chi](http://github.com/go-chi/chi)
 * ORM: [XORM](https://xorm.io)
 * UI组件：
   * [Semantic UI](http://semantic-ui.com/)

docs/content/page/index.zh-tw.md

@@ -47,7 +47,7 @@ Gitea 的首要目標是建立一個容易安裝，運行快速，安装和使
 
 ## 元件
 
-* Web 框架： [Macaron](http://go-macaron.com/)
+* Web 框架： [Chi](http://github.com/go-chi/chi)
 * ORM： [XORM](https://xorm.io)
 * UI 元件：
   * [Semantic UI](http://semantic-ui.com/)

go.mod

@@ -5,19 +5,12 @@ go 1.14
 require (
 	code.gitea.io/gitea-vet v0.2.1
 	code.gitea.io/sdk/gitea v0.13.1
+	gitea.com/go-chi/binding v0.0.0-20210113025129-03f1d313373c
+	gitea.com/go-chi/cache v0.0.0-20210110083709-82c4c9ce2d5e
+	gitea.com/go-chi/captcha v0.0.0-20210110083842-e7696c336a1e
 	gitea.com/go-chi/session v0.0.0-20210108030337-0cb48c5ba8ee
 	gitea.com/lunny/levelqueue v0.3.0
-	gitea.com/macaron/binding v0.0.0-20190822013154-a5f53841ed2b
-	gitea.com/macaron/cache v0.0.0-20200924044943-905232fba10b
-	gitea.com/macaron/captcha v0.0.0-20200825161008-e8597820aaca
-	gitea.com/macaron/cors v0.0.0-20190826180238-95aec09ea8b4
-	gitea.com/macaron/csrf v0.0.0-20190822024205-3dc5a4474439
-	gitea.com/macaron/gzip v0.0.0-20200827120000-efa5e8477cf5
-	gitea.com/macaron/i18n v0.0.0-20200911004404-4ca3dd0cbd60
-	gitea.com/macaron/inject v0.0.0-20190805023432-d4c86e31027a
-	gitea.com/macaron/macaron v1.5.1-0.20201027213641-0db5d4584804
-	gitea.com/macaron/session v0.0.0-20201103015045-a177a2701dee
-	gitea.com/macaron/toolbox v0.0.0-20190822013122-05ff0fc766b7
+	github.com/NYTimes/gziphandler v1.1.1
 	github.com/PuerkitoBio/goquery v1.5.1
 	github.com/RoaringBitmap/roaring v0.5.5 // indirect
 	github.com/alecthomas/chroma v0.8.2
@@ -36,6 +29,7 @@ require (
 	github.com/gliderlabs/ssh v0.3.1
 	github.com/glycerine/go-unsnap-stream v0.0.0-20190901134440-81cf024a9e0a // indirect
 	github.com/go-chi/chi v1.5.1
+	github.com/go-chi/cors v1.1.1
 	github.com/go-enry/go-enry/v2 v2.6.0
 	github.com/go-git/go-billy/v5 v5.0.0
 	github.com/go-git/go-git/v5 v5.2.0