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// SPDX-License-Identifier: AGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
package main
import (
"errors"
"fmt"
"html/template"
"io"
"net"
"net/http"
"strings"
"git.sr.ht/~sircmpwn/go-bare"
)
// httpHandleRepoTree provides a friendly, syntax-highlighted view of
// individual files, and provides directory views that link to these files.
//
// TODO: Do not highlight files that are too large.
func httpHandleRepoTree(writer http.ResponseWriter, request *http.Request, params map[string]any) {
repoName := params["repo_name"].(string)
groupPath := params["group_path"].([]string)
rawPathSpec := params["rest"].(string)
pathSpec := strings.TrimSuffix(rawPathSpec, "/")
params["path_spec"] = pathSpec
_, repoPath, _, _, _, _, _ := getRepoInfo(request.Context(), groupPath, repoName, "")
conn, err := net.Dial("unix", config.Git.Socket)
if err != nil {
errorPage500(writer, params, "git2d connection failed: "+err.Error())
return
}
defer conn.Close()
brWriter := bare.NewWriter(conn)
brReader := bare.NewReader(conn)
if err := brWriter.WriteData([]byte(repoPath)); err != nil {
errorPage500(writer, params, "sending repo path failed: "+err.Error())
return
}
if err := brWriter.WriteUint(2); err != nil {
errorPage500(writer, params, "sending command failed: "+err.Error())
return
}
if err := brWriter.WriteData([]byte(pathSpec)); err != nil {
errorPage500(writer, params, "sending path failed: "+err.Error())
return
}
status, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "reading status failed: "+err.Error())
return
}
switch status {
case 0:
kind, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "reading object kind failed: "+err.Error())
return
}
switch kind {
case 1:
// Tree
count, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "reading entry count failed: "+err.Error())
return
}
files := make([]displayTreeEntry, 0, count)
for i := uint64(0); i < count; i++ {
typeCode, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "error reading entry type: "+err.Error())
return
}
mode, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "error reading entry mode: "+err.Error())
return
}
size, err := brReader.ReadUint()
if err != nil {
errorPage500(writer, params, "error reading entry size: "+err.Error())
return
}
name, err := brReader.ReadData()
if err != nil {
errorPage500(writer, params, "error reading entry name: "+err.Error())
return
}
files = append(files, displayTreeEntry{
Name: string(name),
Mode: fmt.Sprintf("%06o", mode),
Size: int64(size),
IsFile: typeCode == 2,
IsSubtree: typeCode == 1,
})
}
params["files"] = files
params["readme_filename"] = "README.md"
params["readme"] = template.HTML("<p>README rendering here is WIP again</p>") // TODO
renderTemplate(writer, "repo_tree_dir", params)
case 2:
// Blob
content, err := brReader.ReadData()
if err != nil && !errors.Is(err, io.EOF) {
errorPage500(writer, params, "error reading file content: "+err.Error())
return
}
rendered := renderHighlightedFile(pathSpec, string(content))
params["file_contents"] = rendered
renderTemplate(writer, "repo_tree_file", params)
default:
errorPage500(writer, params, fmt.Sprintf("unknown kind: %d", kind))
return
}
case 3:
errorPage500(writer, params, fmt.Sprintf("path not found: %s", pathSpec))
return
default:
errorPage500(writer, params, fmt.Sprintf("unknown status code: %d", status))
}
}
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