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package main
import (
"bytes"
"fmt"
"log"
"net/http"
"net/http/cgi"
"net/http/httputil"
"path"
"path/filepath"
"strings"
"os"
"senary/auth"
"senary/common"
"senary/gen"
"senary/repo"
)
const SOFTWARE_NAME = "senary"
func Regen(config *common.Config, repo string) {
err := gen.GenerateRepoPages(config, repo)
if err != nil {
fmt.Printf("[error] %v\n", err)
}
}
func printHelp() {
fmt.Printf("usage: %v [serve|build]\n", SOFTWARE_NAME)
}
func printBuildHelp() {
fmt.Printf("usage: %v build <repo>\n", SOFTWARE_NAME)
}
var (
git_http_backend_bin = "/usr/lib/git-core/git-http-backend"
git_repos = "/srv/repos/"
)
func gitBackend(w http.ResponseWriter, r *http.Request) {
// defense in depth, blackhole receive-pack requests
// we expect the bare repo to also be configured to reject http(s) push requests
// but this should prevent any access to it from the web interface at all..
if strings.Contains(r.URL.String(), "receive-pack") {
http.Error(w, "forbidden", http.StatusForbidden)
return
}
env := []string{
fmt.Sprintf("GIT_PROJECT_ROOT=%s", git_repos),
"GIT_HTTP_EXPORT_ALL=",
"REMOTE_USER=githttp",
}
// debug git request
requestDump, err := httputil.DumpRequest(r, true)
if err != nil {
fmt.Println(err)
}
fmt.Println(string(requestDump))
var stdErr bytes.Buffer
handler := &cgi.Handler{
Path: git_http_backend_bin,
Root: "/repos/",
Env: env,
Stderr: &stdErr,
}
handler.ServeHTTP(w, r)
if stdErr.Len() > 0 {
log.Println("[backend]", stdErr.String())
}
}
func main() {
numArgs := len(os.Args)
if numArgs == 1 {
printHelp()
os.Exit(1)
}
config, err := common.LoadConfig("senary.json")
if err != nil {
fmt.Printf("[error] %v\n", err)
os.Exit(1)
}
fmt.Printf("Maintainer Domains:%v\n", config.MaintainerDomains)
switch os.Args[1] {
case "serve":
authClient := auth.NewAuthClient(config)
fs := http.FileServer(http.Dir(config.BaseDir))
http.Handle("/", fs)
http.HandleFunc("GET /{$}", func(w http.ResponseWriter, r *http.Request) {
config.Templates.ExecuteTemplate(w, "index.tpl.html", gen.StaticDirListing{StaticBase: gen.StaticBase{User: authClient.GetAuthInfo(config, r)}})
})
http.HandleFunc("GET /repos/{$}", func(w http.ResponseWriter, r *http.Request) {
entries := []gen.FileEntry{}
dirEntries, _ := os.ReadDir(config.RepoDir)
for _, e := range dirEntries {
if e.IsDir() {
entries = append(entries, gen.FileEntry{Dir: true, Name: e.Name(), Path: e.Name()})
}
}
config.Templates.ExecuteTemplate(w, "repos.tpl.html", gen.StaticDirListing{StaticBase: gen.StaticBase{User: authClient.GetAuthInfo(config, r)}, Path: "Repositories", DirName: "Repositories", Contents: entries})
})
http.HandleFunc("GET /login", func(w http.ResponseWriter, r *http.Request) {
config.Templates.ExecuteTemplate(w, "login.tpl.html", gen.StaticDirListing{StaticBase: gen.StaticBase{User: authClient.GetAuthInfo(config, r)}})
})
http.HandleFunc("POST /login", authClient.LoginHandler)
http.HandleFunc("GET /callback", authClient.CallbackHandler)
dirEntries, _ := os.ReadDir(config.RepoDir)
for _, e := range dirEntries {
if e.IsDir() {
repos := repo.NewRepository(config, e.Name(), authClient)
repopath := path.Join("/repos/", e.Name(), "/{$}")
http.HandleFunc("GET "+repopath, repos.ServeTree)
treepath := path.Join("/repos/", e.Name(), "tree") + "/"
http.HandleFunc("GET "+treepath, repos.ServeTree)
commitpath := path.Join("/repos/", e.Name(), "commits") + "/"
http.HandleFunc("GET "+commitpath, repos.ServeTree)
// make a request handler for the repo
rm := repo.NewRequestManager(config, e.Name(), authClient)
http.HandleFunc(path.Join("/repos/", e.Name(), "requests")+"/", rm.Serve)
http.HandleFunc("POST "+path.Join("/repos/", e.Name(), "requests")+"/new", rm.Submit)
http.HandleFunc("POST "+path.Join("/repos/", e.Name(), "requests")+"/approve", rm.Submit)
http.HandleFunc("POST "+path.Join("/repos/", e.Name(), "requests")+"/tombstone", rm.Submit)
// allow downloading patches and applying them...
http.HandleFunc("GET "+path.Join("/repos/", e.Name(), "patch/{id}/{patch}")+"/{$}", rm.ServePatch)
http.HandleFunc("POST "+path.Join("/repos/", e.Name(), "apply/{id}/{patch}")+"/{$}", rm.ApplyPatch)
// allow https cloning by redirecting to git https backend
http.HandleFunc(path.Join("/repos/", e.Name()+".git")+"/", gitBackend)
}
}
log.Print("Listening on :3000...")
err := http.ListenAndServe("localhost:3000", nil)
if err != nil {
log.Fatal(err)
}
case "build":
if numArgs == 2 {
for _, base := range config.RepoBases {
dirEntries, _ := os.ReadDir(base)
for _, e := range dirEntries {
if e.IsDir() {
Regen(config, filepath.Join(base, e.Name()))
}
}
}
} else {
printBuildHelp()
}
}
}
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