mirror of
https://codeberg.org/Codeberg/pages-server.git
synced 2025-08-13 19:10:54 +00:00
switch to std http implementation instead of fasthttp (#106)
close #100 close #109 close #113 close #28 close #63 Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/106
This commit is contained in:
6543
parent
69eabb248a
commit
b9966487f6
28 changed files with 827 additions and 584 deletions
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@ -1,15 +1,17 @@
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package server
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import (
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"bytes"
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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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"github.com/rs/zerolog/log"
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"github.com/valyala/fasthttp"
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"codeberg.org/codeberg/pages/html"
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"codeberg.org/codeberg/pages/server/cache"
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"codeberg.org/codeberg/pages/server/context"
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"codeberg.org/codeberg/pages/server/dns"
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"codeberg.org/codeberg/pages/server/gitea"
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"codeberg.org/codeberg/pages/server/upstream"
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@ -17,42 +19,48 @@ import (
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"codeberg.org/codeberg/pages/server/version"
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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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)
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// Handler handles a single HTTP request to the web server.
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func Handler(mainDomainSuffix, rawDomain []byte,
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func Handler(mainDomainSuffix, rawDomain string,
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giteaClient *gitea.Client,
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giteaRoot, rawInfoPage string,
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blacklistedPaths, allowedCorsDomains [][]byte,
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dnsLookupCache, canonicalDomainCache, branchTimestampCache, fileResponseCache cache.SetGetKey,
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) func(ctx *fasthttp.RequestCtx) {
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return func(ctx *fasthttp.RequestCtx) {
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log := log.With().Strs("Handler", []string{string(ctx.Request.Host()), string(ctx.Request.Header.RequestURI())}).Logger()
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blacklistedPaths, allowedCorsDomains []string,
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dnsLookupCache, canonicalDomainCache cache.SetGetKey,
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) http.HandlerFunc {
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return func(w http.ResponseWriter, req *http.Request) {
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log := log.With().Strs("Handler", []string{string(req.Host), req.RequestURI}).Logger()
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ctx := context.New(w, req)
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ctx.Response.Header.Set("Server", "CodebergPages/"+version.Version)
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ctx.RespWriter.Header().Set("Server", "CodebergPages/"+version.Version)
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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.Response.Header.Set("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.Response.Header.Set("Cache-Control", "public, max-age=600")
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ctx.RespWriter.Header().Set("Cache-Control", "public, max-age=600")
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trimmedHost := utils.TrimHostPort(ctx.Request.Host())
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trimmedHost := utils.TrimHostPort(req.Host)
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// Add HSTS for RawDomain and MainDomainSuffix
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if hsts := GetHSTSHeader(trimmedHost, mainDomainSuffix, rawDomain); hsts != "" {
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ctx.Response.Header.Set("Strict-Transport-Security", hsts)
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if hsts := getHSTSHeader(trimmedHost, mainDomainSuffix, rawDomain); hsts != "" {
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ctx.RespWriter.Header().Set("Strict-Transport-Security", hsts)
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}
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// Block all methods not required for static pages
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if !ctx.IsGet() && !ctx.IsHead() && !ctx.IsOptions() {
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ctx.Response.Header.Set("Allow", "GET, HEAD, OPTIONS")
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ctx.Error("Method not allowed", fasthttp.StatusMethodNotAllowed)
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if !ctx.IsMethod(http.MethodGet) && !ctx.IsMethod(http.MethodHead) && !ctx.IsMethod(http.MethodOptions) {
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ctx.RespWriter.Header().Set("Allow", http.MethodGet+", "+http.MethodHead+", "+http.MethodOptions) // duplic 1
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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 blacklistedPaths {
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if bytes.HasPrefix(ctx.Path(), blacklistedPath) {
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html.ReturnErrorPage(ctx, fasthttp.StatusForbidden)
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if strings.HasPrefix(ctx.Path(), blacklistedPath) {
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html.ReturnErrorPage(ctx, "requested blacklisted path", http.StatusForbidden)
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return
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}
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}
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@ -60,18 +68,19 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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// Allow CORS for specified domains
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allowCors := false
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for _, allowedCorsDomain := range allowedCorsDomains {
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if bytes.Equal(trimmedHost, allowedCorsDomain) {
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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.Response.Header.Set("Access-Control-Allow-Origin", "*")
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ctx.Response.Header.Set("Access-Control-Allow-Methods", "GET, HEAD")
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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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ctx.Response.Header.Set("Allow", "GET, HEAD, OPTIONS")
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if ctx.IsOptions() {
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ctx.Response.Header.SetStatusCode(fasthttp.StatusNoContent)
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ctx.RespWriter.Header().Set("Allow", http.MethodGet+", "+http.MethodHead+", "+http.MethodOptions) // duplic 1
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if ctx.IsMethod(http.MethodOptions) {
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ctx.RespWriter.WriteHeader(http.StatusNoContent)
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return
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}
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@ -83,9 +92,10 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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// tryBranch checks if a branch exists and populates the target variables. If canonicalLink is non-empty, it will
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// also disallow search indexing and add a Link header to the canonical URL.
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tryBranch := func(log zerolog.Logger, repo, branch string, path []string, canonicalLink string) bool {
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// TODO: move into external func to not alert vars indirectly
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tryBranch := func(log zerolog.Logger, repo, branch string, _path []string, canonicalLink string) bool {
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if repo == "" {
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log.Warn().Msg("tryBranch: repo is empty")
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log.Debug().Msg("tryBranch: repo is empty")
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return false
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}
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@ -94,23 +104,23 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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branch = strings.ReplaceAll(branch, "~", "/")
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// Check if the branch exists, otherwise treat it as a file path
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branchTimestampResult := upstream.GetBranchTimestamp(giteaClient, targetOwner, repo, branch, branchTimestampCache)
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branchTimestampResult := upstream.GetBranchTimestamp(giteaClient, targetOwner, repo, branch)
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if branchTimestampResult == nil {
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log.Warn().Msg("tryBranch: branch doesn't exist")
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log.Debug().Msg("tryBranch: branch doesn't exist")
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return false
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}
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// Branch exists, use it
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targetRepo = repo
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targetPath = strings.Trim(strings.Join(path, "/"), "/")
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targetPath = path.Join(_path...)
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targetBranch = branchTimestampResult.Branch
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targetOptions.BranchTimestamp = branchTimestampResult.Timestamp
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if canonicalLink != "" {
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// Hide from search machines & add canonical link
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ctx.Response.Header.Set("X-Robots-Tag", "noarchive, noindex")
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ctx.Response.Header.Set("Link",
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ctx.RespWriter.Header().Set("X-Robots-Tag", "noarchive, noindex")
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ctx.RespWriter.Header().Set("Link",
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strings.NewReplacer("%b", targetBranch, "%p", targetPath).Replace(canonicalLink)+
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"; rel=\"canonical\"",
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)
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@ -120,22 +130,18 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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return true
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}
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log.Debug().Msg("Preparing")
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if rawDomain != nil && bytes.Equal(trimmedHost, rawDomain) {
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log.Debug().Msg("preparations")
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if rawDomain != "" && strings.EqualFold(trimmedHost, rawDomain) {
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// Serve raw content from RawDomain
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log.Debug().Msg("Serving raw domain")
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log.Debug().Msg("raw domain")
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targetOptions.TryIndexPages = false
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if targetOptions.ForbiddenMimeTypes == nil {
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targetOptions.ForbiddenMimeTypes = make(map[string]bool)
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}
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targetOptions.ForbiddenMimeTypes["text/html"] = true
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targetOptions.DefaultMimeType = "text/plain; charset=utf-8"
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targetOptions.ServeRaw = true
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pathElements := strings.Split(string(bytes.Trim(ctx.Request.URI().Path(), "/")), "/")
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pathElements := strings.Split(strings.Trim(ctx.Path(), "/"), "/")
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if len(pathElements) < 2 {
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// https://{RawDomain}/{owner}/{repo}[/@{branch}]/{path} is required
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ctx.Redirect(rawInfoPage, fasthttp.StatusTemporaryRedirect)
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ctx.Redirect(rawInfoPage, http.StatusTemporaryRedirect)
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return
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}
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targetOwner = pathElements[0]
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@ -143,45 +149,45 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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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("Preparing raw domain, now trying with specified branch")
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log.Debug().Msg("raw domain preparations, now trying with specified branch")
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if tryBranch(log,
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targetRepo, pathElements[2][1:], pathElements[3:],
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giteaRoot+"/"+targetOwner+"/"+targetRepo+"/src/branch/%b/%p",
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) {
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log.Info().Msg("tryBranch, now trying upstream 1")
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log.Debug().Msg("tryBranch, now trying upstream 1")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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canonicalDomainCache)
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return
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}
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log.Warn().Msg("Path missed a branch")
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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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("Preparing raw domain, now trying with default branch")
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log.Debug().Msg("raw domain preparations, now trying with default branch")
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tryBranch(log,
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targetRepo, "", pathElements[2:],
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giteaRoot+"/"+targetOwner+"/"+targetRepo+"/src/branch/%b/%p",
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)
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log.Info().Msg("tryBranch, now trying upstream 2")
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log.Debug().Msg("tryBranch, now trying upstream 2")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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canonicalDomainCache)
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return
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} else if bytes.HasSuffix(trimmedHost, mainDomainSuffix) {
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} else if strings.HasSuffix(trimmedHost, mainDomainSuffix) {
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// Serve pages from subdomains of MainDomainSuffix
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log.Info().Msg("Serve pages from main domain suffix")
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log.Debug().Msg("main domain suffix")
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pathElements := strings.Split(string(bytes.Trim(ctx.Request.URI().Path(), "/")), "/")
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targetOwner = string(bytes.TrimSuffix(trimmedHost, mainDomainSuffix))
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pathElements := strings.Split(strings.Trim(ctx.Path(), "/"), "/")
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targetOwner = strings.TrimSuffix(trimmedHost, mainDomainSuffix)
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targetRepo = pathElements[0]
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targetPath = strings.Trim(strings.Join(pathElements[1:], "/"), "/")
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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("https://"+string(mainDomainSuffix[1:])+string(ctx.Path()), fasthttp.StatusPermanentRedirect)
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ctx.Redirect("https://"+string(mainDomainSuffix[1:])+string(ctx.Path()), http.StatusPermanentRedirect)
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return
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}
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@ -190,22 +196,24 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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if len(pathElements) > 1 && strings.HasPrefix(pathElements[1], "@") {
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if targetRepo == "pages" {
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// example.codeberg.org/pages/@... redirects to example.codeberg.org/@...
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ctx.Redirect("/"+strings.Join(pathElements[1:], "/"), fasthttp.StatusTemporaryRedirect)
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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("Preparing main domain, now trying with specified repo & branch")
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log.Debug().Msg("main domain preparations, now trying with specified repo & branch")
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branch := pathElements[1][1:]
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if tryBranch(log,
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pathElements[0], pathElements[1][1:], pathElements[2:],
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pathElements[0], branch, pathElements[2:],
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"/"+pathElements[0]+"/%p",
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) {
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log.Info().Msg("tryBranch, now trying upstream 3")
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log.Debug().Msg("tryBranch, now trying upstream 3")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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canonicalDomainCache)
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} else {
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log.Warn().Msg("tryBranch: upstream 3 failed")
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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html.ReturnErrorPage(ctx,
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fmt.Sprintf("explizite set branch %q do not exist at '%s/%s'", branch, targetOwner, targetRepo),
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http.StatusFailedDependency)
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}
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return
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}
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@ -213,16 +221,18 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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// Check if the first directory is a branch for the "pages" repo
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// example.codeberg.page/@main/index.html
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if strings.HasPrefix(pathElements[0], "@") {
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log.Debug().Msg("Preparing main domain, now trying with specified branch")
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log.Debug().Msg("main domain preparations, now trying with specified branch")
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branch := pathElements[0][1:]
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if tryBranch(log,
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"pages", pathElements[0][1:], pathElements[1:], "/%p") {
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log.Info().Msg("tryBranch, now trying upstream 4")
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"pages", branch, pathElements[1:], "/%p") {
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log.Debug().Msg("tryBranch, now trying upstream 4")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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targetOptions, targetOwner, "pages", targetBranch, targetPath,
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canonicalDomainCache)
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} else {
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log.Warn().Msg("tryBranch: upstream 4 failed")
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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html.ReturnErrorPage(ctx,
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fmt.Sprintf("explizite set branch %q do not exist at '%s/%s'", branch, targetOwner, "pages"),
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http.StatusFailedDependency)
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}
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return
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}
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@ -233,10 +243,10 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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log.Debug().Msg("main domain preparations, now trying with specified repo")
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if pathElements[0] != "pages" && tryBranch(log,
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pathElements[0], "pages", pathElements[1:], "") {
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log.Info().Msg("tryBranch, now trying upstream 5")
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log.Debug().Msg("tryBranch, now trying upstream 5")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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canonicalDomainCache)
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return
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}
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@ -245,28 +255,31 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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log.Debug().Msg("main domain preparations, now trying with default repo/branch")
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if tryBranch(log,
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"pages", "", pathElements, "") {
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log.Info().Msg("tryBranch, now trying upstream 6")
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log.Debug().Msg("tryBranch, now trying upstream 6")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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canonicalDomainCache)
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return
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}
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// Couldn't find a valid repo/branch
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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html.ReturnErrorPage(ctx,
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fmt.Sprintf("couldn't find a valid repo[%s]/branch[%s]", targetRepo, targetBranch),
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http.StatusFailedDependency)
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return
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} else {
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trimmedHostStr := string(trimmedHost)
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// Serve pages from external domains
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// Serve pages from custom domains
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targetOwner, targetRepo, targetBranch = dns.GetTargetFromDNS(trimmedHostStr, string(mainDomainSuffix), dnsLookupCache)
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if targetOwner == "" {
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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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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pathElements := strings.Split(string(bytes.Trim(ctx.Request.URI().Path(), "/")), "/")
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pathElements := strings.Split(strings.Trim(ctx.Path(), "/"), "/")
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canonicalLink := ""
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if strings.HasPrefix(pathElements[0], "@") {
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targetBranch = pathElements[0][1:]
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@ -275,36 +288,33 @@ func Handler(mainDomainSuffix, rawDomain []byte,
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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("Preparing custom domain, now trying with details from DNS")
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log.Debug().Msg("custom domain preparations, now trying with details from DNS")
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if tryBranch(log,
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targetRepo, targetBranch, pathElements, canonicalLink) {
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canonicalDomain, valid := upstream.CheckCanonicalDomain(giteaClient, targetOwner, targetRepo, targetBranch, trimmedHostStr, string(mainDomainSuffix), canonicalDomainCache)
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if !valid {
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log.Warn().Msg("Custom domains, domain from DNS isn't valid/canonical")
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html.ReturnErrorPage(ctx, fasthttp.StatusMisdirectedRequest)
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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 != trimmedHostStr {
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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], string(mainDomainSuffix), dnsLookupCache)
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if targetOwner != "" {
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ctx.Redirect("https://"+canonicalDomain+string(ctx.RequestURI()), fasthttp.StatusTemporaryRedirect)
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ctx.Redirect("https://"+canonicalDomain+string(ctx.Path()), http.StatusTemporaryRedirect)
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return
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}
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log.Warn().Msg("Custom domains, targetOwner from DNS is empty")
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html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
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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.Info().Msg("tryBranch, now trying upstream 7")
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log.Debug().Msg("tryBranch, now trying upstream 7")
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tryUpstream(ctx, giteaClient, mainDomainSuffix, trimmedHost,
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targetOptions, targetOwner, targetRepo, targetBranch, targetPath,
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canonicalDomainCache, branchTimestampCache, fileResponseCache)
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||||
canonicalDomainCache)
|
||||
return
|
||||
}
|
||||
|
||||
log.Warn().Msg("Couldn't handle request, none of the options succeed")
|
||||
html.ReturnErrorPage(ctx, fasthttp.StatusFailedDependency)
|
||||
html.ReturnErrorPage(ctx, "could not find target for custom domain", http.StatusFailedDependency)
|
||||
return
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue