Working OAuth2 support. Needs some more debugging (error handling is not

great and imc_logout() gets (rightfully) confused when jabber_data is empty).

1 files changed, 16 insertions, 34 deletions

diff --git a/lib/oauth2.h b/lib/oauth2.h
index c2985ef6..657a0ab3 100644
--- a/lib/oauth2.h
+++ b/lib/oauth2.h
@@ -1,7 +1,7 @@
 /***************************************************************************\
 *                                                                           *
 *  BitlBee - An IRC to IM gateway                                           *
-*  Simple OAuth client (consumer) implementation.                           *
+*  Simple OAuth2 client (consumer) implementation.                          *
 *                                                                           *
 *  Copyright 2010-2011 Wilmer van der Gaast <wilmer@gaast.net>              *
 *                                                                           *
@@ -21,28 +21,10 @@
 *                                                                           *
 \***************************************************************************/
 
-struct oauth2_info;
+/* Implementation mostly based on my experience with writing the previous OAuth
+   module, and from http://code.google.com/apis/accounts/docs/OAuth2.html . */
 
-/* Callback function called twice during the access token request process.
-   Return FALSE if something broke and the process must be aborted. */
-typedef gboolean (*oauth_cb)( struct oauth2_info * );
-
-struct oauth2_info
-{
-	const struct oauth_service *sp;
-	
-	oauth_cb func;
-	void *data;
-	
-	struct http_request *http;
-	
-//	char *auth_url;
-//	char *request_token;
-	
-//	char *token;
-//	char *token_secret;
-//	GSList *params;
-};
+typedef void (*oauth2_token_callback)( gpointer data, const char *atoken, const char *rtoken );
 
 struct oauth2_service
 {
@@ -51,19 +33,19 @@ struct oauth2_service
 	char *consumer_secret;
 };
 
+/* Currently suitable for authenticating to Google Talk only, and only for
+   accounts that have 2-factor authorization enabled. */
 extern struct oauth2_service oauth2_service_google;
 
-/* http://oauth.net/core/1.0a/#auth_step1 (section 6.1) 
-   Request an initial anonymous token which can be used to construct an
-   authorization URL for the user. This is passed to the callback function
-   in a struct oauth2_info. */
-char *oauth2_url( const struct oauth2_service *sp, const char *scope );
+#define OAUTH2_AUTH_CODE "authorization_code"
+#define OAUTH2_AUTH_REFRESH "refresh_token"
 
-/* http://oauth.net/core/1.0a/#auth_step3 (section 6.3)
-   The user gets a PIN or so which we now exchange for the final access
-   token. This is passed to the callback function in the same
-   struct oauth2_info. */
-gboolean oauth2_access_token( const char *pin, struct oauth2_info *st );
+/* Generate a URL the user should open in his/her browser to get an
+   authorization code. */
+char *oauth2_url( const struct oauth2_service *sp, const char *scope );
 
-/* Shouldn't normally be required unless the process is aborted by the user. */
-void oauth2_info_free( struct oauth2_info *info );
+/* Exchanges an auth code or refresh token for an access token.
+   auth_type is one of the two OAUTH2_AUTH_.. constants above. */
+int oauth2_access_token( const struct oauth2_service *sp,
+                         const char *auth_type, const char *auth,
+                         oauth2_token_callback func, gpointer data );