2020-11-13 07:51:07 -05:00
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// Copyright 2020 The Gitea Authors. All rights reserved.
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2022-11-27 13:20:29 -05:00
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// SPDX-License-Identifier: MIT
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2020-11-13 07:51:07 -05:00
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2021-06-08 18:33:54 -05:00
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package web
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2020-11-13 07:51:07 -05:00
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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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2021-01-19 20:47:43 -05:00
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"code.gitea.io/gitea/modules/context"
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2020-11-17 17:44:52 -05:00
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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/util"
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2021-01-30 03:55:53 -05:00
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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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2021-01-05 08:05:40 -05:00
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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 = 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(
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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 = 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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2020-11-17 17:44:52 -05:00
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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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2022-01-20 12:46:10 -05:00
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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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2023-03-08 15:40:04 -05:00
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httpcache.SetCacheControlInHeader(w.Header(), 0, "no-transform")
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2021-08-06 15:47:10 -05:00
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w.Header().Set(`X-Frame-Options`, setting.CORSConfig.XFrameOptions)
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2020-11-17 15:50:06 -05:00
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2021-10-20 09:37:19 -05:00
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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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