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The recovery, API, Web and package frameworks all create their own HTML Renderers. This increases the memory requirements of Gitea unnecessarily with duplicate templates being kept in memory. Further the reloading framework in dev mode for these involves locking and recompiling all of the templates on each load. This will potentially hide concurrency issues and it is inefficient. This PR stores the templates renderer in the context and stores this context in the NormalRoutes, it then creates a fsnotify.Watcher framework to watch files. The watching framework is then extended to the mailer templates which were previously not being reloaded in dev. Then the locales are simplified to a similar structure. Fix #20210 Fix #20211 Fix #20217 Signed-off-by: Andrew Thornton <art27@cantab.net>
179 lines
5.2 KiB
Go
179 lines
5.2 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package web
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import (
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goctx "context"
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"path"
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"strings"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/httpcache"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/storage"
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"code.gitea.io/gitea/modules/templates"
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"code.gitea.io/gitea/modules/web/middleware"
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"code.gitea.io/gitea/modules/web/routing"
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"code.gitea.io/gitea/services/auth"
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"gitea.com/go-chi/session"
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)
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func storageHandler(storageSetting setting.Storage, prefix string, objStore storage.ObjectStorage) func(next http.Handler) http.Handler {
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prefix = strings.Trim(prefix, "/")
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funcInfo := routing.GetFuncInfo(storageHandler, prefix)
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return func(next http.Handler) http.Handler {
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if storageSetting.ServeDirect {
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return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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if req.Method != "GET" && req.Method != "HEAD" {
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next.ServeHTTP(w, req)
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return
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}
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if !strings.HasPrefix(req.URL.Path, "/"+prefix+"/") {
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next.ServeHTTP(w, req)
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return
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}
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routing.UpdateFuncInfo(req.Context(), funcInfo)
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rPath := strings.TrimPrefix(req.URL.Path, "/"+prefix+"/")
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rPath = path.Clean("/" + strings.ReplaceAll(rPath, "\\", "/"))[1:]
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u, err := objStore.URL(rPath, path.Base(rPath))
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if err != nil {
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if os.IsNotExist(err) || errors.Is(err, os.ErrNotExist) {
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log.Warn("Unable to find %s %s", prefix, rPath)
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http.Error(w, "file not found", http.StatusNotFound)
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return
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}
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log.Error("Error whilst getting URL for %s %s. Error: %v", prefix, rPath, err)
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http.Error(w, fmt.Sprintf("Error whilst getting URL for %s %s", prefix, rPath), http.StatusInternalServerError)
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return
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}
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http.Redirect(
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w,
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req,
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u.String(),
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http.StatusTemporaryRedirect,
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)
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})
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}
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return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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if req.Method != "GET" && req.Method != "HEAD" {
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next.ServeHTTP(w, req)
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return
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}
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if !strings.HasPrefix(req.URL.Path, "/"+prefix+"/") {
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next.ServeHTTP(w, req)
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return
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}
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routing.UpdateFuncInfo(req.Context(), funcInfo)
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rPath := strings.TrimPrefix(req.URL.Path, "/"+prefix+"/")
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rPath = path.Clean("/" + strings.ReplaceAll(rPath, "\\", "/"))[1:]
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if rPath == "" {
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http.Error(w, "file not found", http.StatusNotFound)
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return
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}
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fi, err := objStore.Stat(rPath)
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if err == nil && httpcache.HandleTimeCache(req, w, fi) {
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return
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}
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// If we have matched and access to release or issue
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fr, err := objStore.Open(rPath)
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if err != nil {
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if os.IsNotExist(err) || errors.Is(err, os.ErrNotExist) {
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log.Warn("Unable to find %s %s", prefix, rPath)
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http.Error(w, "file not found", http.StatusNotFound)
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return
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}
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log.Error("Error whilst opening %s %s. Error: %v", prefix, rPath, err)
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http.Error(w, fmt.Sprintf("Error whilst opening %s %s", prefix, rPath), http.StatusInternalServerError)
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return
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}
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defer fr.Close()
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_, err = io.Copy(w, fr)
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if err != nil {
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log.Error("Error whilst rendering %s %s. Error: %v", prefix, rPath, err)
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http.Error(w, fmt.Sprintf("Error whilst rendering %s %s", prefix, rPath), http.StatusInternalServerError)
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return
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}
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})
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}
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}
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type dataStore map[string]interface{}
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func (d *dataStore) GetData() map[string]interface{} {
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return *d
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}
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// Recovery returns a middleware that recovers from any panics and writes a 500 and a log if so.
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// This error will be created with the gitea 500 page.
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func Recovery(ctx goctx.Context) func(next http.Handler) http.Handler {
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_, rnd := templates.HTMLRenderer(ctx)
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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defer func() {
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if err := recover(); err != nil {
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routing.UpdatePanicError(req.Context(), err)
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combinedErr := fmt.Sprintf("PANIC: %v\n%s", err, log.Stack(2))
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log.Error("%s", combinedErr)
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sessionStore := session.GetSession(req)
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lc := middleware.Locale(w, req)
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store := dataStore{
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"Language": lc.Language(),
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"CurrentURL": setting.AppSubURL + req.URL.RequestURI(),
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"locale": lc,
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}
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user := context.GetContextUser(req)
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if user == nil {
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// Get user from session if logged in - do not attempt to sign-in
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user = auth.SessionUser(sessionStore)
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}
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if user != nil {
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store["IsSigned"] = true
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store["SignedUser"] = user
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store["SignedUserID"] = user.ID
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store["SignedUserName"] = user.Name
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store["IsAdmin"] = user.IsAdmin
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} else {
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store["SignedUserID"] = int64(0)
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store["SignedUserName"] = ""
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}
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httpcache.AddCacheControlToHeader(w.Header(), 0, "no-transform")
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w.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
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if !setting.IsProd {
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store["ErrorMsg"] = combinedErr
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}
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err = rnd.HTML(w, http.StatusInternalServerError, "status/500", templates.BaseVars().Merge(store))
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if err != nil {
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log.Error("%v", err)
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}
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}
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}()
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next.ServeHTTP(w, req)
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})
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}
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}
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