package main
import (
"fmt"
"io/ioutil"
"log"
"net/http"
"os"
)
func parseArgs() (string, error) {
// We can only accept one argument
if len(os.Args) != 2 {
return "", fmt.Errorf("Usage: gh_authkey_checker <username>")
}
return os.Args[1], nil
}
func fetchKeys(username string) (string, error) {
url := fmt.Sprintf("https://github.com/%s.keys", username)
resp, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return "", fmt.Errorf("Expected http 200 but got %d instead", resp.StatusCode)
}
bodyBytes, err := ioutil.ReadAll(resp.Body)
if err != nil {
return "", err
}
return string(bodyBytes), nil
}
func checkUsername(username string) error {
url := fmt.Sprintf("https://github.com/%s.keys", username)
response, err := http.Get(url)
if err != nil {
return err
}
if response.StatusCode != http.StatusOK {
return fmt.Errorf("%s is an invalid user", username)
}
return nil
}
func main() {
username, err := parseArgs()
if err != nil {
log.Fatal(err)
}
log.Printf("Checking for GitHub user %s", username)
err = checkUsername(username)
if err != nil {
log.Fatal(err)
}
log.Printf("Found valid user %s", username)
log.Printf("Fetching keys for user %s", username)
keys, err := fetchKeys(username)
if err != nil {
log.Fatal(err)
}
fmt.Print(keys)
}