source: protocols/jabber/jabber.h @ 8519f45

Last change on this file since 8519f45 was 7b40f17, checked in by dequis <dx@…>, at 2014-10-11T02:20:53Z

Add support for XEP-0203: Delayed delivery (message timestamps)

Very similar to XEP-0091 which is already supported, but was marked as
obsolete, replaced by XEP-0203. The main differences are the tag name
and the timestamp format.

Due to the similarities, both XEPs are still supported.
  • Property mode set to 100644
File size: 15.3 KB
Line 
1/***************************************************************************\
2*                                                                           *
3*  BitlBee - An IRC to IM gateway                                           *
4*  Jabber module - Main file                                                *
5*                                                                           *
6*  Copyright 2006-2013 Wilmer van der Gaast <wilmer@gaast.net>              *
7*                                                                           *
8*  This program is free software; you can redistribute it and/or modify     *
9*  it under the terms of the GNU General Public License as published by     *
10*  the Free Software Foundation; either version 2 of the License, or        *
11*  (at your option) any later version.                                      *
12*                                                                           *
13*  This program is distributed in the hope that it will be useful,          *
14*  but WITHOUT ANY WARRANTY; without even the implied warranty of           *
15*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            *
16*  GNU General Public License for more details.                             *
17*                                                                           *
18*  You should have received a copy of the GNU General Public License along  *
19*  with this program; if not, write to the Free Software Foundation, Inc.,  *
20*  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.              *
21*                                                                           *
22\***************************************************************************/
23
24#ifndef _JABBER_H
25#define _JABBER_H
26
27#include <glib.h>
28
29#include "bitlbee.h"
30#include "md5.h"
31#include "xmltree.h"
32
33extern GSList *jabber_connections;
34
35typedef enum
36{
37        JFLAG_STREAM_STARTED = 1,       /* Set when we detected the beginning of the stream
38                                           and want to do auth. */
39        JFLAG_AUTHENTICATED = 2,        /* Set when we're successfully authenticatd. */
40        JFLAG_STREAM_RESTART = 4,       /* Set when we want to restart the stream (after
41                                           SASL or TLS). */
42        JFLAG_WANT_SESSION = 8,         /* Set if the server wants a <session/> tag
43                                           before we continue. */
44        JFLAG_WANT_BIND = 16,           /* ... for <bind> tag. */
45        JFLAG_WANT_TYPING = 32,         /* Set if we ever sent a typing notification, this
46                                           activates all XEP-85 related code. */
47        JFLAG_XMLCONSOLE = 64,          /* If the user added an xmlconsole buddy. */
48        JFLAG_STARTTLS_DONE = 128,      /* If a plaintext session was converted to TLS. */
49
50        JFLAG_GTALK =  0x100000,        /* Is Google Talk, as confirmed by iq discovery */
51
52        JFLAG_SASL_FB = 0x10000,        /* Trying Facebook authentication. */
53} jabber_flags_t;
54
55typedef enum
56{
57        JBFLAG_PROBED_XEP85 = 1,        /* Set this when we sent our probe packet to make
58                                           sure it gets sent only once. */
59        JBFLAG_DOES_XEP85 = 2,          /* Set this when the resource seems to support
60                                           XEP85 (typing notification shite). */
61        JBFLAG_IS_CHATROOM = 4,         /* It's convenient to use this JID thingy for
62                                           groupchat state info too. */
63        JBFLAG_IS_ANONYMOUS = 8,        /* For anonymous chatrooms, when we don't have
64                                           have a real JID. */
65        JBFLAG_HIDE_SUBJECT = 16,       /* Hide the subject field since we probably
66                                           showed it already. */
67} jabber_buddy_flags_t;
68
69/* Stores a streamhost's (a.k.a. proxy) data */
70typedef struct
71{
72        char *jid;
73        char *host;
74        char port[6];
75} jabber_streamhost_t;
76
77typedef enum
78{
79        JCFLAG_MESSAGE_SENT = 1,        /* Set this after sending the first message, so
80                                           we can detect echoes/backlogs. */
81} jabber_chat_flags_t;
82
83struct jabber_data
84{
85        struct im_connection *ic;
86       
87        int fd;
88        void *ssl;
89        char *txq;
90        int tx_len;
91        int r_inpa, w_inpa;
92       
93        struct xt_parser *xt;
94        jabber_flags_t flags;
95       
96        char *username;         /* USERNAME@server */
97        char *server;           /* username@SERVER -=> server/domain, not hostname */
98        char *me;               /* bare jid */
99       
100        const struct oauth2_service *oauth2_service;
101        char *oauth2_access_token;
102       
103        /* After changing one of these two (or the priority setting), call
104           presence_send_update() to inform the server about the changes. */
105        const struct jabber_away_state *away_state;
106        char *away_message;
107       
108        md5_state_t cached_id_prefix;
109        GHashTable *node_cache;
110        GHashTable *buddies;
111
112        GSList *filetransfers;
113        GSList *streamhosts;
114        int have_streamhosts;
115};
116
117struct jabber_away_state
118{
119        char code[5];
120        char *full_name;
121};
122
123typedef xt_status (*jabber_cache_event) ( struct im_connection *ic, struct xt_node *node, struct xt_node *orig );
124
125struct jabber_cache_entry
126{
127        time_t saved_at;
128        struct xt_node *node;
129        jabber_cache_event func;
130};
131
132/* Somewhat messy data structure: We have a hash table with the bare JID as
133   the key and the head of a struct jabber_buddy list as the value. The head
134   is always a bare JID. If the JID has other resources (often the case,
135   except for some transports that don't support multiple resources), those
136   follow. In that case, the bare JID at the beginning doesn't actually
137   refer to a real session and should only be used for operations that
138   support incomplete JIDs. */
139struct jabber_buddy
140{
141        char *bare_jid;
142        char *full_jid;
143        char *resource;
144       
145        char *ext_jid; /* The JID to use in BitlBee. The real JID if possible, */
146                       /* otherwise something similar to the conference JID. */
147       
148        int priority;
149        struct jabber_away_state *away_state;
150        char *away_message;
151        GSList *features;
152       
153        time_t last_msg;
154        jabber_buddy_flags_t flags;
155       
156        struct jabber_buddy *next;
157};
158
159struct jabber_chat
160{
161        int flags;
162        char *name;
163        char *my_full_jid; /* Separate copy because of case sensitivity. */
164        struct jabber_buddy *me;
165        char *invite;
166};
167
168struct jabber_transfer
169{
170        /* bitlbee's handle for this transfer */
171        file_transfer_t *ft;
172
173        /* the stream's private handle */
174        gpointer streamhandle;
175
176        /* timeout for discover queries */
177        gint disco_timeout;
178        gint disco_timeout_fired;
179
180        struct im_connection *ic;
181
182        struct jabber_buddy *bud;
183
184        int watch_in;
185        int watch_out;
186
187        char *ini_jid;
188        char *tgt_jid;
189        char *iq_id;
190        char *sid;
191        int accepted;
192
193        size_t bytesread, byteswritten;
194        int fd;
195        struct sockaddr_storage saddr;
196};
197
198#define JABBER_XMLCONSOLE_HANDLE "_xmlconsole"
199#define JABBER_OAUTH_HANDLE "jabber_oauth"
200
201/* Prefixes to use for packet IDs (mainly for IQ packets ATM). Usually the
202   first one should be used, but when storing a packet in the cache, a
203   "special" kind of ID is assigned to make it easier later to figure out
204   if we have to do call an event handler for the response packet. Also
205   we'll append a hash to make sure we won't trigger on cached packets from
206   other BitlBee users. :-) */
207#define JABBER_PACKET_ID "BeeP"
208#define JABBER_CACHED_ID "BeeC"
209
210/* The number of seconds to keep cached packets before garbage collecting
211   them. This gc is done on every keepalive (every minute). */
212#define JABBER_CACHE_MAX_AGE 600
213
214/* RFC 392[01] stuff */
215#define XMLNS_TLS          "urn:ietf:params:xml:ns:xmpp-tls"
216#define XMLNS_SASL         "urn:ietf:params:xml:ns:xmpp-sasl"
217#define XMLNS_BIND         "urn:ietf:params:xml:ns:xmpp-bind"
218#define XMLNS_SESSION      "urn:ietf:params:xml:ns:xmpp-session"
219#define XMLNS_STANZA_ERROR "urn:ietf:params:xml:ns:xmpp-stanzas"
220#define XMLNS_STREAM_ERROR "urn:ietf:params:xml:ns:xmpp-streams"
221#define XMLNS_ROSTER       "jabber:iq:roster"
222
223/* Some supported extensions/legacy stuff */
224#define XMLNS_AUTH         "jabber:iq:auth"                                      /* XEP-0078 */
225#define XMLNS_VERSION      "jabber:iq:version"                                   /* XEP-0092 */
226#define XMLNS_TIME_OLD     "jabber:iq:time"                                      /* XEP-0090 */
227#define XMLNS_TIME         "urn:xmpp:time"                                       /* XEP-0202 */
228#define XMLNS_PING         "urn:xmpp:ping"                                       /* XEP-0199 */
229#define XMLNS_RECEIPTS     "urn:xmpp:receipts"                                   /* XEP-0184 */
230#define XMLNS_VCARD        "vcard-temp"                                          /* XEP-0054 */
231#define XMLNS_DELAY_OLD    "jabber:x:delay"                                      /* XEP-0091 */
232#define XMLNS_DELAY        "urn:xmpp:delay"                                      /* XEP-0203 */
233#define XMLNS_XDATA        "jabber:x:data"                                       /* XEP-0004 */
234#define XMLNS_CHATSTATES   "http://jabber.org/protocol/chatstates"               /* XEP-0085 */
235#define XMLNS_DISCO_INFO   "http://jabber.org/protocol/disco#info"               /* XEP-0030 */
236#define XMLNS_DISCO_ITEMS  "http://jabber.org/protocol/disco#items"              /* XEP-0030 */
237#define XMLNS_MUC          "http://jabber.org/protocol/muc"                      /* XEP-0045 */
238#define XMLNS_MUC_USER     "http://jabber.org/protocol/muc#user"                 /* XEP-0045 */
239#define XMLNS_CAPS         "http://jabber.org/protocol/caps"                     /* XEP-0115 */
240#define XMLNS_FEATURE      "http://jabber.org/protocol/feature-neg"              /* XEP-0020 */
241#define XMLNS_SI           "http://jabber.org/protocol/si"                       /* XEP-0095 */
242#define XMLNS_FILETRANSFER "http://jabber.org/protocol/si/profile/file-transfer" /* XEP-0096 */
243#define XMLNS_BYTESTREAMS  "http://jabber.org/protocol/bytestreams"              /* XEP-0065 */
244#define XMLNS_IBB          "http://jabber.org/protocol/ibb"                      /* XEP-0047 */
245
246/* jabber.c */
247void jabber_connect( struct im_connection *ic );
248
249/* iq.c */
250xt_status jabber_pkt_iq( struct xt_node *node, gpointer data );
251int jabber_init_iq_auth( struct im_connection *ic );
252xt_status jabber_pkt_bind_sess( struct im_connection *ic, struct xt_node *node, struct xt_node *orig );
253int jabber_get_roster( struct im_connection *ic );
254int jabber_get_vcard( struct im_connection *ic, char *bare_jid );
255int jabber_add_to_roster( struct im_connection *ic, const char *handle, const char *name, const char *group );
256int jabber_remove_from_roster( struct im_connection *ic, char *handle );
257xt_status jabber_iq_query_features( struct im_connection *ic, char *bare_jid );
258xt_status jabber_iq_query_server( struct im_connection *ic, char *jid, char *xmlns );
259void jabber_iq_version_send( struct im_connection *ic, struct jabber_buddy *bud, void *data );
260
261/* si.c */
262int jabber_si_handle_request( struct im_connection *ic, struct xt_node *node, struct xt_node *sinode );
263void jabber_si_transfer_request( struct im_connection *ic, file_transfer_t *ft, char *who );
264void jabber_si_free_transfer( file_transfer_t *ft);
265
266/* s5bytestream.c */
267int jabber_bs_recv_request( struct im_connection *ic, struct xt_node *node, struct xt_node *qnode);
268gboolean jabber_bs_send_start( struct jabber_transfer *tf );
269gboolean jabber_bs_send_write( file_transfer_t *ft, char *buffer, unsigned int len );
270
271/* message.c */
272xt_status jabber_pkt_message( struct xt_node *node, gpointer data );
273
274/* presence.c */
275xt_status jabber_pkt_presence( struct xt_node *node, gpointer data );
276int presence_send_update( struct im_connection *ic );
277int presence_send_request( struct im_connection *ic, char *handle, char *request );
278
279/* jabber_util.c */
280char *set_eval_priority( set_t *set, char *value );
281char *set_eval_tls( set_t *set, char *value );
282struct xt_node *jabber_make_packet( char *name, char *type, char *to, struct xt_node *children );
283struct xt_node *jabber_make_error_packet( struct xt_node *orig, char *err_cond, char *err_type, char *err_code );
284void jabber_cache_add( struct im_connection *ic, struct xt_node *node, jabber_cache_event func );
285struct xt_node *jabber_cache_get( struct im_connection *ic, char *id );
286void jabber_cache_entry_free( gpointer entry );
287void jabber_cache_clean( struct im_connection *ic );
288xt_status jabber_cache_handle_packet( struct im_connection *ic, struct xt_node *node );
289const struct jabber_away_state *jabber_away_state_by_code( char *code );
290const struct jabber_away_state *jabber_away_state_by_name( char *name );
291void jabber_buddy_ask( struct im_connection *ic, char *handle );
292int jabber_compare_jid( const char *jid1, const char *jid2 );
293char *jabber_normalize( const char *orig );
294
295typedef enum
296{
297        GET_BUDDY_CREAT = 1,    /* Try to create it, if necessary. */
298        GET_BUDDY_EXACT = 2,    /* Get an exact match (only makes sense with bare JIDs). */
299        GET_BUDDY_FIRST = 4,    /* No selection, simply get the first resource for this JID. */
300        GET_BUDDY_BARE = 8,     /* Get the bare version of the JID (possibly inexistent). */
301        GET_BUDDY_BARE_OK = 16, /* Allow returning a bare JID if that seems better. */
302} get_buddy_flags_t;
303
304struct jabber_error
305{
306        char *code, *text, *type;
307};
308
309struct jabber_buddy *jabber_buddy_add( struct im_connection *ic, char *full_jid );
310struct jabber_buddy *jabber_buddy_by_jid( struct im_connection *ic, char *jid, get_buddy_flags_t flags );
311struct jabber_buddy *jabber_buddy_by_ext_jid( struct im_connection *ic, char *jid, get_buddy_flags_t flags );
312int jabber_buddy_remove( struct im_connection *ic, char *full_jid );
313int jabber_buddy_remove_bare( struct im_connection *ic, char *bare_jid );
314void jabber_buddy_remove_all( struct im_connection *ic );
315time_t jabber_get_timestamp( struct xt_node *xt );
316struct jabber_error *jabber_error_parse( struct xt_node *node, char *xmlns );
317void jabber_error_free( struct jabber_error *err );
318gboolean jabber_set_me( struct im_connection *ic, const char *me );
319
320extern const struct jabber_away_state jabber_away_state_list[];
321
322/* io.c */
323int jabber_write_packet( struct im_connection *ic, struct xt_node *node );
324int jabber_write( struct im_connection *ic, char *buf, int len );
325gboolean jabber_connected_plain( gpointer data, gint source, b_input_condition cond );
326gboolean jabber_connected_ssl( gpointer data, int returncode, void *source, b_input_condition cond );
327gboolean jabber_start_stream( struct im_connection *ic );
328void jabber_end_stream( struct im_connection *ic );
329
330/* sasl.c */
331xt_status sasl_pkt_mechanisms( struct xt_node *node, gpointer data );
332xt_status sasl_pkt_challenge( struct xt_node *node, gpointer data );
333xt_status sasl_pkt_result( struct xt_node *node, gpointer data );
334gboolean sasl_supported( struct im_connection *ic );
335void sasl_oauth2_init( struct im_connection *ic );
336int sasl_oauth2_get_refresh_token( struct im_connection *ic, const char *msg );
337int sasl_oauth2_refresh( struct im_connection *ic, const char *refresh_token );
338
339extern const struct oauth2_service oauth2_service_google;
340extern const struct oauth2_service oauth2_service_facebook;
341
342/* conference.c */
343struct groupchat *jabber_chat_join( struct im_connection *ic, const char *room, const char *nick, const char *password );
344struct groupchat *jabber_chat_with( struct im_connection *ic, char *who );
345struct groupchat *jabber_chat_by_jid( struct im_connection *ic, const char *name );
346void jabber_chat_free( struct groupchat *c );
347int jabber_chat_msg( struct groupchat *ic, char *message, int flags );
348int jabber_chat_topic( struct groupchat *c, char *topic );
349int jabber_chat_leave( struct groupchat *c, const char *reason );
350void jabber_chat_pkt_presence( struct im_connection *ic, struct jabber_buddy *bud, struct xt_node *node );
351void jabber_chat_pkt_message( struct im_connection *ic, struct jabber_buddy *bud, struct xt_node *node );
352void jabber_chat_invite( struct groupchat *c, char *who, char *message );
353
354#endif
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