mirror of https://github.com/tilde-cat/register
98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
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package main
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import (
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"strings"
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"flag"
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"bytes"
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"strconv"
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"fmt"
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"os"
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"os/user"
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"os/exec"
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"encoding/json"
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"io/ioutil"
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"log"
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"github.com/tilde-cat/register"
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)
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var verbose = flag.Bool("v", false, "verbose")
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var dry = flag.Bool("dry", true, "dry run")
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func readRequest(path string) (*register.Request, error) {
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b, err := ioutil.ReadFile(path)
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if err != nil {
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return nil, err
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}
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var r register.Request
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err = json.Unmarshal(b, &r)
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return &r, err
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}
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func shell(cmd string, args... string) {
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var errOut bytes.Buffer
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c := exec.Command(cmd, args...)
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c.Stderr = &errOut
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if err := c.Run(); err != nil {
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log.Fatalf("%v failed:\n%v", cmd, errOut.String())
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os.Exit(1)
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}
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}
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func fixKey(key string) string {
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return strings.Replace(strings.Replace(key, "\n", "", -1), "\r", "", -1)
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}
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func main() {
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flag.Parse()
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if len(flag.Args()) != 1 {
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fmt.Fprintf(os.Stderr, "usage: %s [OPTIONS] file\n", os.Args[0])
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flag.PrintDefaults()
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os.Exit(1)
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}
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path := flag.Arg(0)
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r, err := readRequest(path)
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if err != nil {
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log.Fatalf("Failed to read request: %v", err)
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}
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if *verbose || *dry {
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log.Printf("Username: '%v'\n", r.Username)
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log.Printf("Email: '%v'\n", r.Email)
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log.Printf("Why:\n%v\n", r.Why)
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log.Printf("SSH key:\n%v\n", r.SSHPublicKey)
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log.Printf("Status: '%v'\n", r.Status)
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}
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if r.Status != "Pending" {
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log.Fatalf("This request is not pending")
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}
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if *dry {
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log.Println("dry run ends")
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return
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}
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shell("adduser", "--disabled-login", "--gecos", "", r.Username)
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authorizedKeysPath := "/home/"+r.Username+"/.ssh/authorized_keys"
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if err = ioutil.WriteFile(authorizedKeysPath, []byte(fixKey(r.SSHPublicKey)), 0664); err != nil {
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log.Fatal("sshkey instalation failed: %v", err)
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}
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user, err := user.Lookup(r.Username)
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if err != nil {
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log.Fatalf("Failed to get user '%v': %v", r.Username, err)
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}
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if *verbose {
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log.Printf("user: %#v\n", user)
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}
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userId, _ := strconv.Atoi(user.Uid)
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groupId, _ := strconv.Atoi(user.Gid)
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if err := os.Chown(authorizedKeysPath, userId, groupId); err != nil {
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log.Fatal("chown failed: %v", err)
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}
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r.Status = "Account created"
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b, err := json.MarshalIndent(r, "", "\t")
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if err != nil {
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log.Fatalf("Failed to serialize request: %v\n", err)
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}
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if err := ioutil.WriteFile(path, b, 0666); err != nil {
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log.Fatalf("Failed to save request: %v\n", err)
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}
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}
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