1 files changed, 90 insertions, 0 deletions
diff --git a/lib/oauth.h b/lib/oauth.h
new file mode 100644
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+++ b/lib/oauth.h
@@ -0,0 +1,90 @@
+/***************************************************************************\
+*                                                                           *
+*  BitlBee - An IRC to IM gateway                                           *
+*  Simple OAuth client (consumer) implementation.                           *
+*                                                                           *
+*  Copyright 2010 Wilmer van der Gaast <wilmer@gaast.net>                   *
+*                                                                           *
+*  This program is free software; you can redistribute it and/or modify     *
+*  it under the terms of the GNU General Public License as published by     *
+*  the Free Software Foundation; either version 2 of the License, or        *
+*  (at your option) any later version.                                      *
+*                                                                           *
+*  This program is distributed in the hope that it will be useful,          *
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
+*  GNU General Public License for more details.                             *
+*                                                                           *
+*  You should have received a copy of the GNU General Public License along  *
+*  with this program; if not, write to the Free Software Foundation, Inc.,  *
+*  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.              *
+*                                                                           *
+\***************************************************************************/
+
+/* http://oauth.net/core/1.0a/ */
+
+struct oauth_info;
+
+/* 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 oauth_info * );
+
+typedef enum
+{
+	OAUTH_INIT,
+	OAUTH_REQUEST_TOKEN,
+	OAUTH_ACCESS_TOKEN,
+} oauth_stage_t;
+
+struct oauth_info
+{
+	oauth_stage_t stage;
+	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;
+};
+
+struct oauth_service
+{
+	char *url_request_token;
+	char *url_access_token;
+	char *url_authorize;
+	
+	char *consumer_key;
+	char *consumer_secret;
+};
+
+/* 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 oauth_info. */
+struct oauth_info *oauth_request_token( const struct oauth_service *sp, oauth_cb func, void *data );
+
+/* 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 oauth_info. */
+gboolean oauth_access_token( const char *pin, struct oauth_info *st );
+
+/* http://oauth.net/core/1.0a/#anchor12 (section 7)
+   Generate an OAuth Authorization: HTTP header. access_token should be
+   saved/fetched using the functions above. args can be a string with
+   whatever's going to be in the POST body of the request. GET args will
+   automatically be grabbed from url. */
+char *oauth_http_header( struct oauth_info *oi, const char *method, const char *url, char *args );
+
+/* Shouldn't normally be required unless the process is aborted by the user. */
+void oauth_info_free( struct oauth_info *info );
+
+/* Convert to and back from strings, for easier saving. */
+char *oauth_to_string( struct oauth_info *oi );
+struct oauth_info *oauth_from_string( char *in, const struct oauth_service *sp );