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package main
import (
"flag"
"fmt"
"log"
"net/http"
"os"
"path/filepath"
"strconv"
"time"
)
func main() {
root := flag.String("root", "/srv/basin", "data directory holding basin.db and repos/")
flag.Usage = func() {
fmt.Fprintln(os.Stderr, `usage: basin [-root dir] command
serve [-listen addr] [-host name] [-open] [-ssh-user name] run the web server
keys user home type key sshd AuthorizedKeysCommand
shell user forced command for ssh git access
invite print a single use registration code
quota [size] show or set the per user disk quota, 0 disables
user name create a user, password read from stdin
passwd name set a user's password, read from stdin
ban name | unban name block or restore an account
delete name remove an account and its repositories`)
}
flag.Parse()
args := flag.Args()
if len(args) == 0 {
flag.Usage()
os.Exit(2)
}
switch args[0] {
case "serve":
serve(*root, args[1:])
case "keys":
binary, _ := os.Executable()
os.Exit(keys(*root, binary, args[1:]))
case "hook":
if len(args) != 3 {
os.Exit(2)
}
os.Exit(hook(*root, args[1], args[2]))
case "shell":
if len(args) != 2 {
os.Exit(2)
}
os.Exit(shell(*root, args[1]))
case "quota":
if len(args) == 2 {
n, err := parseSize(args[1])
if err != nil {
log.Fatal(err)
}
if err := os.WriteFile(filepath.Join(*root, "quota"), []byte(strconv.FormatInt(n, 10)+"\n"), 0o644); err != nil {
log.Fatal(err)
}
}
if q := readQuota(*root); q == 0 {
fmt.Println("no quota")
} else {
fmt.Println(humanSize(q))
}
case "invite":
store := mustStore(*root)
code, err := store.CreateInvite()
if err != nil {
log.Fatal(err)
}
fmt.Println(code)
case "user":
if len(args) != 2 {
os.Exit(2)
}
store := mustStore(*root)
var password string
fmt.Fscanln(os.Stdin, &password)
if _, err := store.CreateUser(args[1], password); err != nil {
log.Fatal(err)
}
case "passwd":
if len(args) != 2 {
os.Exit(2)
}
store := mustStore(*root)
u, err := store.UserByName(args[1])
if err != nil {
log.Fatal("no such user")
}
var password string
fmt.Fscanln(os.Stdin, &password)
if err := store.SetPassword(u.ID, password); err != nil {
log.Fatal(err)
}
store.DeleteSessions(u.ID)
case "ban", "unban":
if len(args) != 2 {
os.Exit(2)
}
if err := mustStore(*root).SetBanned(args[1], args[0] == "ban"); err != nil {
log.Fatal(err)
}
case "delete":
if len(args) != 2 {
os.Exit(2)
}
store := mustStore(*root)
if _, err := store.UserByName(args[1]); err != nil {
log.Fatal("no such user")
}
if err := store.DeleteUser(args[1]); err != nil {
log.Fatal(err)
}
os.RemoveAll(filepath.Join(*root, "repos", args[1]))
default:
flag.Usage()
os.Exit(2)
}
}
func mustStore(root string) *Store {
if err := os.MkdirAll(filepath.Join(root, "repos"), 0o755); err != nil {
log.Fatal(err)
}
store, err := openStore(filepath.Join(root, "basin.db"), false)
if err != nil {
log.Fatal(err)
}
return store
}
func serve(root string, args []string) {
fs := flag.NewFlagSet("serve", flag.ExitOnError)
listen := fs.String("listen", "127.0.0.1:3200", "address to listen on")
host := fs.String("host", "localhost", "public hostname used in clone urls")
open := fs.Bool("open", false, "allow registration without an invite")
sshUser := fs.String("ssh-user", "git", "unix user that serves git over ssh, shown in clone urls")
fs.Parse(args)
store := mustStore(root)
srv := &http.Server{
Addr: *listen,
Handler: newServer(store, root, *host, *open, *sshUser).handler(),
ReadHeaderTimeout: 10 * time.Second,
}
log.Printf("basin listening on %s for %s", *listen, *host)
log.Fatal(srv.ListenAndServe())
}
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