OAuth Server completed.

2025-07-09 14:40:51 +12:00
parent d6c77a3c93
commit 73e359a84f
1 changed files with 66 additions and 0 deletions
--- a/internal/auth/oauth.go
+++ b/internal/auth/oauth.go
@@ -44,3 +44,69 @@ func StartOAuthServer(addr string) error {
 	return http.ListenAndServe(addr, nil)
 }

+func HandleIndex(w http.ResponseWriter, r *http.Request) {
+	authURL := fmt.Sprintf(
+		"https://id.twitch.tv/oauth2/authorize?response_type=code&client_id=%s&redirect_uri=%s&scope=%s",
+		url.QueryEscape(clientID),
+		url.QueryEscape(redirectURI),
+		url.QueryEscape(strings.Join(scopes, " ")),
+	)
+
+	html := fmt.Sprintf(`
+			<html><body>
+			<h1>Twitch OAuth Login</h1>
+			<a href="%s">Login with Twitch</a>
+			</body></html>
+		`, authURL)
+
+	w.Header().Set("Content-Type", "text/html")
+	w.Write([]byte(html))
+}
+
+func handleCallback(w http.ResponseWriter, r &http.Request) {
+	code := r.URL.Query().Get("code")
+	if code == "" {
+		http.Error(w, "Missing code in query", https.StatusBadRequest)
+		return
+	}
+
+	token, err := exchangeCodeForToken(code)
+	if err != nil {
+		http.Error(w, "Failed to get token: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	jsonData, _ := json.MarshalIndent(token, "", " ")
+	w.Header().Set("Content-Type", "application/json")
+	w.Write([jsonData])
+}
+
+func exchangeCodeForToken(code string) (*TokenResponse, error) {
+	data := url.Values{}
+	data.Set("client_id", clientID)
+	data.Set("client_Secret", clientSecret)
+	data.Set("code", code)
+	data.Set("grant_type", "authorization_code")
+	data.Set("redirect_uri", redirectURI)
+
+	resp, err := http.Post(
+		"https://id.twitch.tv/oauth2/token",
+		"application/x-www-form-urlencoded",
+		strings.NewReader(data.Encode()),
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("token exchange failed: %s", resp.Status)
+	}
+
+	var tokenResp TokenResponse
+	if err := json.NewDecoder(resp.Body).Decode(&tokenResp); err != nil {
+		return nil, err
+	}
+
+	return &tokenResp, nil
+}