fork from codeberg.org
This commit is contained in:
“xHuPo”
commit
50a258ea59
67 changed files with 4587 additions and 0 deletions
114
server/handler/handler.go
Normal file
114
server/handler/handler.go
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@ -0,0 +1,114 @@
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package handler
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import (
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"net/http"
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"strings"
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"github.com/rs/zerolog/log"
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"pages-server/config"
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"pages-server/html"
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"pages-server/server/cache"
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"pages-server/server/context"
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"pages-server/server/gitea"
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)
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const (
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headerAccessControlAllowOrigin = "Access-Control-Allow-Origin"
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headerAccessControlAllowMethods = "Access-Control-Allow-Methods"
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defaultPagesRepo = "pages"
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)
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// Handler handles a single HTTP request to the web server.
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func Handler(
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cfg config.ServerConfig,
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giteaClient *gitea.Client,
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canonicalDomainCache, redirectsCache cache.ICache,
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) http.HandlerFunc {
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return func(w http.ResponseWriter, req *http.Request) {
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log.Debug().Msg("\n----------------------------------------------------------")
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log := log.With().Strs("Handler", []string{req.Host, req.RequestURI}).Logger()
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ctx := context.New(w, req)
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ctx.RespWriter.Header().Set("Server", "pages-server")
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// Force new default from specification (since November 2020) - see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy#strict-origin-when-cross-origin
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ctx.RespWriter.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
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// Enable browser caching for up to 10 minutes
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ctx.RespWriter.Header().Set("Cache-Control", "public, max-age=600")
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trimmedHost := ctx.TrimHostPort()
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// Add HSTS for RawDomain and MainDomain
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if hsts := getHSTSHeader(trimmedHost, cfg.MainDomain, cfg.RawDomain); hsts != "" {
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ctx.RespWriter.Header().Set("Strict-Transport-Security", hsts)
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}
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// Handle all http methods
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ctx.RespWriter.Header().Set("Allow", http.MethodGet+", "+http.MethodHead+", "+http.MethodOptions)
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switch ctx.Req.Method {
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case http.MethodOptions:
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// return Allow header
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ctx.RespWriter.WriteHeader(http.StatusNoContent)
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return
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case http.MethodGet,
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http.MethodHead:
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// end switch case and handle allowed requests
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break
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default:
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// Block all methods not required for static pages
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ctx.String("Method not allowed", http.StatusMethodNotAllowed)
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return
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}
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// Block blacklisted paths (like ACME challenges)
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for _, blacklistedPath := range cfg.BlacklistedPaths {
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if strings.HasPrefix(ctx.Path(), blacklistedPath) {
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html.ReturnErrorPage(ctx, "requested path is blacklisted", http.StatusForbidden)
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return
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}
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}
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// Allow CORS for specified domains
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allowCors := false
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for _, allowedCorsDomain := range cfg.AllowedCorsDomains {
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if strings.EqualFold(trimmedHost, allowedCorsDomain) {
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allowCors = true
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break
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}
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}
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if allowCors {
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ctx.RespWriter.Header().Set(headerAccessControlAllowOrigin, "*")
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ctx.RespWriter.Header().Set(headerAccessControlAllowMethods, http.MethodGet+", "+http.MethodHead)
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}
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// Prepare request information to Gitea
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pathElements := strings.Split(strings.Trim(ctx.Path(), "/"), "/")
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if cfg.RawDomain != "" && strings.EqualFold(trimmedHost, cfg.RawDomain) {
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log.Debug().Msg("raw domain request detected")
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handleRaw(log, ctx, giteaClient,
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cfg.MainDomain,
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trimmedHost,
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pathElements,
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canonicalDomainCache, redirectsCache)
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} else if strings.HasSuffix(trimmedHost, cfg.MainDomain) {
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log.Debug().Msg("subdomain request detected")
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handleSubDomain(log, ctx, giteaClient,
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cfg.MainDomain,
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cfg.PagesBranches,
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trimmedHost,
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pathElements,
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canonicalDomainCache, redirectsCache)
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} else {
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log.Debug().Msg("custom domain request detected")
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handleCustomDomain(log, ctx, giteaClient,
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cfg.MainDomain,
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trimmedHost,
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pathElements,
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cfg.PagesBranches[0],
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canonicalDomainCache, redirectsCache)
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}
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}
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}
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73
server/handler/handler_custom_domain.go
Normal file
73
server/handler/handler_custom_domain.go
Normal file
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@ -0,0 +1,73 @@
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package handler
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import (
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"net/http"
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"path"
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"strings"
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"pages-server/html"
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"pages-server/server/cache"
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"pages-server/server/context"
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"pages-server/server/dns"
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"pages-server/server/gitea"
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"pages-server/server/upstream"
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"github.com/rs/zerolog"
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)
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func handleCustomDomain(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
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mainDomainSuffix string,
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trimmedHost string,
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pathElements []string,
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firstDefaultBranch string,
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canonicalDomainCache, redirectsCache cache.ICache,
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) {
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// Serve pages from custom domains
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targetOwner, targetRepo, targetBranch := dns.GetTargetFromDNS(trimmedHost, mainDomainSuffix, firstDefaultBranch)
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if targetOwner == "" {
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html.ReturnErrorPage(ctx,
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"could not obtain repo owner from custom domain",
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http.StatusFailedDependency)
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return
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}
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pathParts := pathElements
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canonicalLink := false
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if strings.HasPrefix(pathElements[0], "@") {
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targetBranch = pathElements[0][1:]
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pathParts = pathElements[1:]
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canonicalLink = true
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}
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// Try to use the given repo on the given branch or the default branch
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log.Debug().Msg("custom domain preparations, now trying with details from DNS")
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
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TryIndexPages: true,
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TargetOwner: targetOwner,
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TargetRepo: targetRepo,
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TargetBranch: targetBranch,
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TargetPath: path.Join(pathParts...),
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}, canonicalLink); works {
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canonicalDomain, valid := targetOpt.CheckCanonicalDomain(giteaClient, trimmedHost, mainDomainSuffix, canonicalDomainCache)
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if !valid {
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html.ReturnErrorPage(ctx, "domain not specified in <code>.domains</code> file", http.StatusMisdirectedRequest)
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return
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} else if canonicalDomain != trimmedHost {
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// only redirect if the target is also a codeberg page!
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targetOwner, _, _ = dns.GetTargetFromDNS(strings.SplitN(canonicalDomain, "/", 2)[0], mainDomainSuffix, firstDefaultBranch)
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if targetOwner != "" {
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ctx.Redirect("http://"+canonicalDomain+"/"+targetOpt.TargetPath, http.StatusTemporaryRedirect)
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return
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}
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html.ReturnErrorPage(ctx, "target is no codeberg page", http.StatusFailedDependency)
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return
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}
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log.Debug().Msg("tryBranch, now trying upstream 7")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
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return
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}
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html.ReturnErrorPage(ctx, "could not find target for custom domain", http.StatusFailedDependency)
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}
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71
server/handler/handler_raw_domain.go
Normal file
71
server/handler/handler_raw_domain.go
Normal file
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@ -0,0 +1,71 @@
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package handler
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import (
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"fmt"
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"net/http"
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"path"
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"strings"
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"github.com/rs/zerolog"
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"pages-server/html"
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"pages-server/server/cache"
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"pages-server/server/context"
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"pages-server/server/gitea"
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"pages-server/server/upstream"
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)
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func handleRaw(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
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mainDomainSuffix string,
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trimmedHost string,
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pathElements []string,
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canonicalDomainCache, redirectsCache cache.ICache,
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) {
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// Serve raw content from RawDomain
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log.Debug().Msg("raw domain")
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if len(pathElements) < 2 {
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html.ReturnErrorPage(
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ctx,
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"a url in the form of <code>http://{domain}/{owner}/{repo}[/@{branch}]/{path}</code> is required",
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http.StatusBadRequest,
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)
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return
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}
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// raw.codeberg.org/example/myrepo/@main/index.html
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if len(pathElements) > 2 && strings.HasPrefix(pathElements[2], "@") {
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log.Debug().Msg("raw domain preparations, now trying with specified branch")
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
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ServeRaw: true,
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TargetOwner: pathElements[0],
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TargetRepo: pathElements[1],
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TargetBranch: pathElements[2][1:],
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TargetPath: path.Join(pathElements[3:]...),
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}, true); works {
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log.Trace().Msg("tryUpstream: serve raw domain with specified branch")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
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return
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}
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log.Debug().Msg("missing branch info")
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html.ReturnErrorPage(ctx, "missing branch info", http.StatusFailedDependency)
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return
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}
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log.Debug().Msg("raw domain preparations, now trying with default branch")
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
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TryIndexPages: false,
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ServeRaw: true,
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TargetOwner: pathElements[0],
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TargetRepo: pathElements[1],
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TargetPath: path.Join(pathElements[2:]...),
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}, true); works {
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log.Trace().Msg("tryUpstream: serve raw domain with default branch")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
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} else {
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html.ReturnErrorPage(ctx,
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fmt.Sprintf("raw domain could not find repo <code>%s/%s</code> or repo is empty", targetOpt.TargetOwner, targetOpt.TargetRepo),
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http.StatusNotFound)
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}
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}
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156
server/handler/handler_sub_domain.go
Normal file
156
server/handler/handler_sub_domain.go
Normal file
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@ -0,0 +1,156 @@
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package handler
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import (
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"fmt"
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"net/http"
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"path"
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"strings"
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"github.com/rs/zerolog"
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"golang.org/x/exp/slices"
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"pages-server/html"
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"pages-server/server/cache"
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"pages-server/server/context"
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"pages-server/server/gitea"
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"pages-server/server/upstream"
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)
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func handleSubDomain(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
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mainDomainSuffix string,
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defaultPagesBranches []string,
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trimmedHost string,
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pathElements []string,
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canonicalDomainCache, redirectsCache cache.ICache,
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) {
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// Serve pages from subdomains of MainDomainSuffix
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log.Debug().Msg("main domain suffix")
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targetOwner := strings.TrimSuffix(trimmedHost, mainDomainSuffix)
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targetRepo := pathElements[0]
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|
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if targetOwner == "www" {
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// www.codeberg.page redirects to codeberg.page // TODO: rm hardcoded - use cname?
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ctx.Redirect("http://"+mainDomainSuffix[1:]+ctx.Path(), http.StatusPermanentRedirect)
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return
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}
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|
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// Check if the first directory is a repo with the second directory as a branch
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// example.codeberg.page/myrepo/@main/index.html
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if len(pathElements) > 1 && strings.HasPrefix(pathElements[1], "@") {
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if targetRepo == defaultPagesRepo {
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// example.codeberg.org/pages/@... redirects to example.codeberg.org/@...
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ctx.Redirect("/"+strings.Join(pathElements[1:], "/"), http.StatusTemporaryRedirect)
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return
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}
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log.Debug().Msg("main domain preparations, now trying with specified repo & branch")
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
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TryIndexPages: true,
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TargetOwner: targetOwner,
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TargetRepo: pathElements[0],
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TargetBranch: pathElements[1][1:],
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TargetPath: path.Join(pathElements[2:]...),
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}, true); works {
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log.Trace().Msg("tryUpstream: serve with specified repo and branch")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
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} else {
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html.ReturnErrorPage(
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ctx,
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formatSetBranchNotFoundMessage(pathElements[1][1:], targetOwner, pathElements[0]),
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http.StatusFailedDependency,
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)
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}
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return
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}
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|
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// Check if the first directory is a branch for the defaultPagesRepo
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// example.codeberg.page/@main/index.html
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if strings.HasPrefix(pathElements[0], "@") {
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targetBranch := pathElements[0][1:]
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|
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// if the default pages branch can be determined exactly, it does not need to be set
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if len(defaultPagesBranches) == 1 && slices.Contains(defaultPagesBranches, targetBranch) {
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// example.codeberg.org/@pages/... redirects to example.codeberg.org/...
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ctx.Redirect("/"+strings.Join(pathElements[1:], "/"), http.StatusTemporaryRedirect)
|
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return
|
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}
|
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|
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log.Debug().Msg("main domain preparations, now trying with specified branch")
|
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
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TryIndexPages: true,
|
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TargetOwner: targetOwner,
|
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TargetRepo: defaultPagesRepo,
|
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TargetBranch: targetBranch,
|
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TargetPath: path.Join(pathElements[1:]...),
|
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}, true); works {
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log.Trace().Msg("tryUpstream: serve default pages repo with specified branch")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
|
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} else {
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html.ReturnErrorPage(
|
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ctx,
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formatSetBranchNotFoundMessage(targetBranch, targetOwner, defaultPagesRepo),
|
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http.StatusFailedDependency,
|
||||
)
|
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}
|
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return
|
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}
|
||||
|
||||
for _, defaultPagesBranch := range defaultPagesBranches {
|
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// Check if the first directory is a repo with a default pages branch
|
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// example.codeberg.page/myrepo/index.html
|
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// example.codeberg.page/{PAGES_BRANCHE}/... is not allowed here.
|
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log.Debug().Msg("main domain preparations, now trying with specified repo")
|
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if pathElements[0] != defaultPagesBranch {
|
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if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
|
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TryIndexPages: true,
|
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TargetOwner: targetOwner,
|
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TargetRepo: pathElements[0],
|
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TargetBranch: defaultPagesBranch,
|
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TargetPath: path.Join(pathElements[1:]...),
|
||||
}, false); works {
|
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log.Debug().Msg("tryBranch, now trying upstream 5")
|
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Try to use the defaultPagesRepo on an default pages branch
|
||||
// example.codeberg.page/index.html
|
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log.Debug().Msg("main domain preparations, now trying with default repo")
|
||||
if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
|
||||
TryIndexPages: true,
|
||||
TargetOwner: targetOwner,
|
||||
TargetRepo: defaultPagesRepo,
|
||||
TargetBranch: defaultPagesBranch,
|
||||
TargetPath: path.Join(pathElements...),
|
||||
}, false); works {
|
||||
log.Debug().Msg("tryBranch, now trying upstream 6")
|
||||
tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Try to use the defaultPagesRepo on its default branch
|
||||
// example.codeberg.page/index.html
|
||||
log.Debug().Msg("main domain preparations, now trying with default repo/branch")
|
||||
if targetOpt, works := tryBranch(log, ctx, giteaClient, &upstream.Options{
|
||||
TryIndexPages: true,
|
||||
TargetOwner: targetOwner,
|
||||
TargetRepo: defaultPagesRepo,
|
||||
TargetPath: path.Join(pathElements...),
|
||||
}, false); works {
|
||||
log.Debug().Msg("tryBranch, now trying upstream 6")
|
||||
tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost, targetOpt, canonicalDomainCache, redirectsCache)
|
||||
return
|
||||
}
|
||||
|
||||
// Couldn't find a valid repo/branch
|
||||
html.ReturnErrorPage(ctx,
|
||||
fmt.Sprintf("could not find a valid repository or branch for repository: <code>%s</code>", targetRepo),
|
||||
http.StatusNotFound)
|
||||
}
|
||||
|
||||
func formatSetBranchNotFoundMessage(branch, owner, repo string) string {
|
||||
return fmt.Sprintf("explicitly set branch <code>%q</code> does not exist at <code>%s/%s</code>", branch, owner, repo)
|
||||
}
|
||||
59
server/handler/handler_test.go
Normal file
59
server/handler/handler_test.go
Normal file
|
|
@ -0,0 +1,59 @@
|
|||
package handler
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"pages-server/config"
|
||||
"pages-server/server/cache"
|
||||
"pages-server/server/gitea"
|
||||
|
||||
"github.com/rs/zerolog/log"
|
||||
)
|
||||
|
||||
func TestHandlerPerformance(t *testing.T) {
|
||||
cfg := config.ForgeConfig{
|
||||
Root: "https://codeberg.org",
|
||||
Token: "",
|
||||
LFSEnabled: false,
|
||||
FollowSymlinks: false,
|
||||
}
|
||||
giteaClient, _ := gitea.NewClient(cfg, cache.NewInMemoryCache())
|
||||
serverCfg := config.ServerConfig{
|
||||
MainDomain: "codeberg.page",
|
||||
RawDomain: "raw.codeberg.page",
|
||||
BlacklistedPaths: []string{
|
||||
"/.well-known/acme-challenge/",
|
||||
},
|
||||
AllowedCorsDomains: []string{"raw.codeberg.org", "fonts.codeberg.org", "design.codeberg.org"},
|
||||
PagesBranches: []string{"pages"},
|
||||
}
|
||||
testHandler := Handler(serverCfg, giteaClient, cache.NewInMemoryCache(), cache.NewInMemoryCache())
|
||||
|
||||
testCase := func(uri string, status int) {
|
||||
t.Run(uri, func(t *testing.T) {
|
||||
req := httptest.NewRequest("GET", uri, http.NoBody)
|
||||
w := httptest.NewRecorder()
|
||||
|
||||
log.Printf("Start: %v\n", time.Now())
|
||||
start := time.Now()
|
||||
testHandler(w, req)
|
||||
end := time.Now()
|
||||
log.Printf("Done: %v\n", time.Now())
|
||||
|
||||
resp := w.Result()
|
||||
|
||||
if resp.StatusCode != status {
|
||||
t.Errorf("request failed with status code %d", resp.StatusCode)
|
||||
} else {
|
||||
t.Logf("request took %d milliseconds", end.Sub(start).Milliseconds())
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
testCase("https://mondstern.codeberg.page/", 404) // TODO: expect 200
|
||||
testCase("https://codeberg.page/", 404) // TODO: expect 200
|
||||
testCase("https://example.momar.xyz/", 424)
|
||||
}
|
||||
15
server/handler/hsts.go
Normal file
15
server/handler/hsts.go
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
package handler
|
||||
|
||||
import (
|
||||
"strings"
|
||||
)
|
||||
|
||||
// getHSTSHeader returns a HSTS header with includeSubdomains & preload for MainDomainSuffix and RawDomain, or an empty
|
||||
// string for custom domains.
|
||||
func getHSTSHeader(host, mainDomainSuffix, rawDomain string) string {
|
||||
if strings.HasSuffix(host, mainDomainSuffix) || strings.EqualFold(host, rawDomain) {
|
||||
return "max-age=63072000; includeSubdomains; preload"
|
||||
} else {
|
||||
return ""
|
||||
}
|
||||
}
|
||||
78
server/handler/try.go
Normal file
78
server/handler/try.go
Normal file
|
|
@ -0,0 +1,78 @@
|
|||
package handler
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/http"
|
||||
"strings"
|
||||
|
||||
"github.com/rs/zerolog"
|
||||
|
||||
"pages-server/html"
|
||||
"pages-server/server/cache"
|
||||
"pages-server/server/context"
|
||||
"pages-server/server/gitea"
|
||||
"pages-server/server/upstream"
|
||||
)
|
||||
|
||||
// tryUpstream forwards the target request to the Gitea API, and shows an error page on failure.
|
||||
func tryUpstream(ctx *context.Context, giteaClient *gitea.Client,
|
||||
mainDomainSuffix, trimmedHost string,
|
||||
options *upstream.Options,
|
||||
canonicalDomainCache cache.ICache,
|
||||
redirectsCache cache.ICache,
|
||||
) {
|
||||
// check if a canonical domain exists on a request on MainDomain
|
||||
if strings.HasSuffix(trimmedHost, mainDomainSuffix) && !options.ServeRaw {
|
||||
canonicalDomain, _ := options.CheckCanonicalDomain(giteaClient, "", mainDomainSuffix, canonicalDomainCache)
|
||||
if !strings.HasSuffix(strings.SplitN(canonicalDomain, "/", 2)[0], mainDomainSuffix) {
|
||||
canonicalPath := ctx.Req.RequestURI
|
||||
if options.TargetRepo != defaultPagesRepo {
|
||||
path := strings.SplitN(canonicalPath, "/", 3)
|
||||
if len(path) >= 3 {
|
||||
canonicalPath = "/" + path[2]
|
||||
}
|
||||
}
|
||||
ctx.Redirect("http://"+canonicalDomain+canonicalPath, http.StatusTemporaryRedirect)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Add host for debugging.
|
||||
options.Host = trimmedHost
|
||||
|
||||
// Try to request the file from the Gitea API
|
||||
if !options.Upstream(ctx, giteaClient, redirectsCache) {
|
||||
html.ReturnErrorPage(ctx, fmt.Sprintf("Forge returned %d %s", ctx.StatusCode, http.StatusText(ctx.StatusCode)), ctx.StatusCode)
|
||||
}
|
||||
}
|
||||
|
||||
// tryBranch checks if a branch exists and populates the target variables. If canonicalLink is non-empty,
|
||||
// it will also disallow search indexing and add a Link header to the canonical URL.
|
||||
func tryBranch(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
|
||||
targetOptions *upstream.Options, canonicalLink bool,
|
||||
) (*upstream.Options, bool) {
|
||||
if targetOptions.TargetOwner == "" || targetOptions.TargetRepo == "" {
|
||||
log.Debug().Msg("tryBranch: owner or repo is empty")
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Replace "~" to "/" so we can access branch that contains slash character
|
||||
// Branch name cannot contain "~" so doing this is okay
|
||||
targetOptions.TargetBranch = strings.ReplaceAll(targetOptions.TargetBranch, "~", "/")
|
||||
|
||||
// Check if the branch exists, otherwise treat it as a file path
|
||||
branchExist, _ := targetOptions.GetBranchTimestamp(giteaClient)
|
||||
if !branchExist {
|
||||
log.Debug().Msg("tryBranch: branch doesn't exist")
|
||||
return nil, false
|
||||
}
|
||||
|
||||
if canonicalLink {
|
||||
// Hide from search machines & add canonical link
|
||||
ctx.RespWriter.Header().Set("X-Robots-Tag", "noarchive, noindex")
|
||||
ctx.RespWriter.Header().Set("Link", targetOptions.ContentWebLink(giteaClient)+"; rel=\"canonical\"")
|
||||
}
|
||||
|
||||
log.Debug().Msg("tryBranch: true")
|
||||
return targetOptions, true
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue