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https://codeberg.org/Codeberg/pages-server.git
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2c41e11f2f
Taken from #301 Co-authored-by: Moritz Marquardt <git@momar.de> Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/315
73 lines
2.5 KiB
Go
73 lines
2.5 KiB
Go
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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"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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"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("https://"+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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