wip

server/try.go

@@ -2,13 +2,16 @@ package server
 
 import (
 	"net/http"
+	"path"
 	"strings"
+	"time"
 
 	"codeberg.org/codeberg/pages/html"
 	"codeberg.org/codeberg/pages/server/cache"
 	"codeberg.org/codeberg/pages/server/context"
 	"codeberg.org/codeberg/pages/server/gitea"
 	"codeberg.org/codeberg/pages/server/upstream"
+	"github.com/rs/zerolog"
 )
 
 // tryUpstream forwards the target request to the Gitea API, and shows an error page on failure.
@@ -47,3 +50,43 @@ func tryUpstream(ctx *context.Context, giteaClient *gitea.Client,
 		html.ReturnErrorPage(ctx, "", ctx.StatusCode)
 	}
 }
+
+func tryBranch2(log zerolog.Logger, ctx *context.Context, giteaClient *gitea.Client,
+	repoOwner, repoName, branch string, _path []string, canonicalLink string) (
+	targetRepo, targetPath, targetBranch string, branchTimestamp *time.Time,
+	works bool) {
+	if repoName == "" {
+		log.Debug().Msg("tryBranch: repo == ''")
+		return "", "", "", nil, false
+	}
+
+	// Replace "~" to "/" so we can access branch that contains slash character
+	// Branch name cannot contain "~" so doing this is okay
+	branch = strings.ReplaceAll(branch, "~", "/")
+
+	// Check if the branch exists, otherwise treat it as a file path
+	branchTimestampResult := upstream.GetBranchTimestamp(giteaClient, repoOwner, repoName, branch)
+	if branchTimestampResult == nil {
+		log.Debug().Msg("tryBranch: branch doesn't exist")
+		return "", "", "", nil, false
+	}
+
+	// Branch exists, use it
+	targetRepo = repoName
+	targetPath = path.Join(_path...)
+	targetBranch = branchTimestampResult.Branch
+
+	branchTimestamp = &branchTimestampResult.Timestamp
+
+	if canonicalLink != "" {
+		// Hide from search machines & add canonical link
+		ctx.RespWriter.Header().Set("X-Robots-Tag", "noarchive, noindex")
+		ctx.RespWriter.Header().Set("Link",
+			strings.NewReplacer("%b", targetBranch, "%p", targetPath).Replace(canonicalLink)+
+				"; rel=\"canonical\"",
+		)
+	}
+
+	log.Debug().Msg("tryBranch: true")
+	return
+}