mirror of
https://codeberg.org/Codeberg/pages-server.git
synced 2024-10-01 04:13:41 +00:00
84 lines
2.9 KiB
Go
84 lines
2.9 KiB
Go
package server
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import (
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"net/http"
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"strings"
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"github.com/rs/zerolog"
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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/gitea"
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"codeberg.org/codeberg/pages/server/upstream"
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)
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// tryUpstream forwards the target request to the Gitea API, and shows an error page on failure.
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func tryUpstream(ctx *context.Context, giteaClient *gitea.Client,
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mainDomainSuffix, trimmedHost string,
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targetOptions *upstream.Options,
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targetOwner, targetRepo, targetBranch, targetPath string,
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canonicalDomainCache cache.SetGetKey,
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) {
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// check if a canonical domain exists on a request on MainDomain
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if strings.HasSuffix(trimmedHost, mainDomainSuffix) {
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canonicalDomain, _ := upstream.CheckCanonicalDomain(giteaClient, targetOwner, targetRepo, targetBranch, "", string(mainDomainSuffix), canonicalDomainCache)
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if !strings.HasSuffix(strings.SplitN(canonicalDomain, "/", 2)[0], string(mainDomainSuffix)) {
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canonicalPath := ctx.Req.RequestURI
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if targetRepo != "pages" {
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path := strings.SplitN(canonicalPath, "/", 3)
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if len(path) >= 3 {
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canonicalPath = "/" + path[2]
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}
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}
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ctx.Redirect("https://"+canonicalDomain+canonicalPath, http.StatusTemporaryRedirect)
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return
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}
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}
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targetOptions.TargetOwner = targetOwner
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targetOptions.TargetRepo = targetRepo
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targetOptions.TargetBranch = targetBranch
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targetOptions.TargetPath = targetPath
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targetOptions.Host = string(trimmedHost)
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// Try to request the file from the Gitea API
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if !targetOptions.Upstream(ctx, giteaClient) {
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html.ReturnErrorPage(ctx, "", ctx.StatusCode)
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}
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}
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// tryBranch checks if a branch exists and populates the target variables. If canonicalLink is non-empty,
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// it will also disallow search indexing and add a Link header to the canonical URL.
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func tryBranch(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
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repoOwner, repoName, branch, path string, canonicalLink bool,
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) (*gitea.BranchTimestamp, bool) {
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if repoName == "" {
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log.Debug().Msg("tryBranch: repo is empty")
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return nil, false
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}
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// Replace "~" to "/" so we can access branch that contains slash character
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// Branch name cannot contain "~" so doing this is okay
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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, repoOwner, repoName, branch)
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if branchTimestampResult == nil {
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log.Debug().Msg("tryBranch: branch doesn't exist")
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return nil, false
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}
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if canonicalLink {
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// Hide from search machines & add canonical 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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giteaClient.ContentWebLink(repoOwner, repoName, branchTimestampResult.Branch, path)+
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"; rel=\"canonical\"")
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}
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log.Debug().Msg("tryBranch: true")
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return branchTimestampResult, true
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}
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