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https://github.com/go-gitea/gitea
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a94a8d0ab1
`http.ServeFile/ServeContent` handles `If-xxx`, `Content-Length`, `Range` and `Etag` correctly After this PR, storage files (eg: avatar) could be responded with correct Content-Length.
99 lines
3 KiB
Go
99 lines
3 KiB
Go
// Copyright 2020 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package web
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import (
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"errors"
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"fmt"
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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/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/util"
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"code.gitea.io/gitea/modules/web/routing"
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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 = util.PathJoinRelX(rPath)
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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(w, req, u.String(), http.StatusTemporaryRedirect)
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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 = util.PathJoinRelX(rPath)
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if rPath == "" || 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 {
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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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fr, err := objStore.Open(rPath)
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if err != nil {
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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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httpcache.ServeContentWithCacheControl(w, req, path.Base(rPath), fi.ModTime(), fr)
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})
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}
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}
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