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https://github.com/go-gitea/gitea.git
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b59705fa34
Fix #33966 ``` ;; User must sign in to view anything. ;; It could be set to "expensive" to block anonymous users accessing some pages which consume a lot of resources, ;; for example: block anonymous AI crawlers from accessing repo code pages. ;; The "expensive" mode is experimental and subject to change. ;REQUIRE_SIGNIN_VIEW = false ```
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
// Copyright 2025 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package common
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import (
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"net/http"
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"strings"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/reqctx"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/web/middleware"
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"github.com/go-chi/chi/v5"
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)
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func BlockExpensive() func(next http.Handler) http.Handler {
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if !setting.Service.BlockAnonymousAccessExpensive {
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return nil
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}
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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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ret := determineRequestPriority(reqctx.FromContext(req.Context()))
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if !ret.SignedIn {
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if ret.Expensive || ret.LongPolling {
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http.Redirect(w, req, setting.AppSubURL+"/user/login", http.StatusSeeOther)
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return
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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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func isRoutePathExpensive(routePattern string) bool {
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if strings.HasPrefix(routePattern, "/user/") || strings.HasPrefix(routePattern, "/login/") {
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return false
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}
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expensivePaths := []string{
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// code related
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"/{username}/{reponame}/archive/",
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"/{username}/{reponame}/blame/",
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"/{username}/{reponame}/commit/",
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"/{username}/{reponame}/commits/",
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"/{username}/{reponame}/graph",
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"/{username}/{reponame}/media/",
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"/{username}/{reponame}/raw/",
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"/{username}/{reponame}/src/",
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// issue & PR related (no trailing slash)
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"/{username}/{reponame}/issues",
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"/{username}/{reponame}/{type:issues}",
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"/{username}/{reponame}/pulls",
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"/{username}/{reponame}/{type:pulls}",
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// wiki
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"/{username}/{reponame}/wiki/",
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// activity
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"/{username}/{reponame}/activity/",
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}
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for _, path := range expensivePaths {
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if strings.HasPrefix(routePattern, path) {
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return true
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}
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}
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return false
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}
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func isRoutePathForLongPolling(routePattern string) bool {
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return routePattern == "/user/events"
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}
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func determineRequestPriority(reqCtx reqctx.RequestContext) (ret struct {
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SignedIn bool
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Expensive bool
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LongPolling bool
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},
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) {
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chiRoutePath := chi.RouteContext(reqCtx).RoutePattern()
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if _, ok := reqCtx.GetData()[middleware.ContextDataKeySignedUser].(*user_model.User); ok {
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ret.SignedIn = true
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} else {
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ret.Expensive = isRoutePathExpensive(chiRoutePath)
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ret.LongPolling = isRoutePathForLongPolling(chiRoutePath)
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}
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return ret
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}
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