|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "io/ioutil" |
| 7 | + "net/http" |
| 8 | + "net/url" |
| 9 | + "os" |
| 10 | + "os/exec" |
| 11 | + "time" |
| 12 | +) |
| 13 | + |
| 14 | +func main() { |
| 15 | + port := 3999 // TODO: find available port number |
| 16 | + state := "TODO" // replace with random unguessable value |
| 17 | + |
| 18 | + clientID := os.Getenv("GH_OAUTH_CLIENT_ID") |
| 19 | + clientSecret := os.Getenv("GH_OAUTH_CLIENT_SECRET") |
| 20 | + |
| 21 | + q := url.Values{} |
| 22 | + q.Set("client_id", clientID) |
| 23 | + q.Set("redirect_uri", fmt.Sprintf("http://localhost:%d", port)) |
| 24 | + q.Set("scope", "repo") |
| 25 | + q.Set("state", state) |
| 26 | + |
| 27 | + cmd := exec.Command("open", fmt.Sprintf("https://github.com/login/oauth/authorize?%s", q.Encode())) |
| 28 | + err := cmd.Run() |
| 29 | + if err != nil { |
| 30 | + panic(err) |
| 31 | + } |
| 32 | + |
| 33 | + code := "" |
| 34 | + srv := &http.Server{Addr: fmt.Sprintf(":%d", port)} |
| 35 | + http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { |
| 36 | + rq := r.URL.Query() |
| 37 | + code = rq.Get("code") |
| 38 | + // TODO: rq.Get("state") |
| 39 | + w.Header().Add("content-type", "text/html") |
| 40 | + fmt.Fprintf(w, "<p>You have authenticated <strong>GitHub CLI</strong>. You may now close this page.</p>") |
| 41 | + time.AfterFunc(10*time.Millisecond, func() { |
| 42 | + srv.Shutdown(context.TODO()) |
| 43 | + }) |
| 44 | + }) |
| 45 | + srv.ListenAndServe() |
| 46 | + |
| 47 | + resp, err := http.PostForm("https://github.com/login/oauth/access_token", |
| 48 | + url.Values{ |
| 49 | + "client_id": {clientID}, |
| 50 | + "client_secret": {clientSecret}, |
| 51 | + "code": {code}, |
| 52 | + "state": {state}, |
| 53 | + }) |
| 54 | + if err != nil { |
| 55 | + panic(err) |
| 56 | + } |
| 57 | + |
| 58 | + defer resp.Body.Close() |
| 59 | + body, err := ioutil.ReadAll(resp.Body) |
| 60 | + if err != nil { |
| 61 | + panic(err) |
| 62 | + } |
| 63 | + tokenValues, err := url.ParseQuery(string(body)) |
| 64 | + if err != nil { |
| 65 | + panic(err) |
| 66 | + } |
| 67 | + fmt.Printf("OAuth access token: %s\n", tokenValues.Get("access_token")) |
| 68 | +} |
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