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  • protocols/jabber/jabber.h

    rb7d3cc34 r259edd4  
    1 /*
    2  *  This program is free software; you can redistribute it and/or modify
    3  *  it under the terms of the GNU General Public License as published by
    4  *  the Free Software Foundation; either version 2 of the License, or
    5  *  (at your option) any later version.
    6  *
    7  *  This program is distributed in the hope that it will be useful,
    8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
    9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    10  *  GNU General Public License for more details.
    11  *
    12  *  You should have received a copy of the GNU General Public License
    13  *  along with this program; if not, write to the Free Software
    14  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    15  *
    16  *  Jabber
    17  *  Copyright (C) 1998-1999 The Jabber Team http://jabber.org/
    18  */
     1/***************************************************************************\
     2*                                                                           *
     3*  BitlBee - An IRC to IM gateway                                           *
     4*  Jabber module - Main file                                                *
     5*                                                                           *
     6*  Copyright 2006 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\***************************************************************************/
    1923
    20 #include <string.h>
    21 #include <stdlib.h>
    22 #include <sys/types.h>
    23 #include <stdio.h>
    24 #include <setjmp.h>
    25 #include <sys/stat.h>
    26 #include <fcntl.h>
    27 #include <errno.h>
    28 #include <signal.h>
    29 #include <stdarg.h>
    30 #include <time.h>
    31 #include <ctype.h>
    32 #ifdef _WIN32
    33 #undef DATADIR
    34 #include "sock.h"
     24#ifndef _JABBER_H
     25#define _JABBER_H
     26
     27#include <glib.h>
     28
     29#include "xmltree.h"
     30#include "bitlbee.h"
     31
     32typedef enum
     33{
     34        JFLAG_STREAM_STARTED = 1,       /* Set when we detected the beginning of the stream
     35                                           and want to do auth. */
     36        JFLAG_AUTHENTICATED = 2,        /* Set when we're successfully authenticatd. */
     37        JFLAG_STREAM_RESTART = 4,       /* Set when we want to restart the stream (after
     38                                           SASL or TLS). */
     39        JFLAG_WAIT_SESSION = 8,         /* Set if we sent a <session> tag and need a reply
     40                                           before we continue. */
     41        JFLAG_WAIT_BIND = 16,           /* ... for <bind> tag. */
     42        JFLAG_WANT_TYPING = 32,         /* Set if we ever sent a typing notification, this
     43                                           activates all JEP-85 related code. */
     44} jabber_flags_t;
     45
     46typedef enum
     47{
     48        JBFLAG_PROBED_JEP85 = 1,        /* Set this when we sent our probe packet to make
     49                                           sure it gets sent only once. */
     50        JBFLAG_DOES_JEP85 = 2,          /* Set this when the resource seems to support
     51                                           JEP85 (typing notification shite). */
     52} jabber_buddy_flag_t;
     53
     54struct jabber_data
     55{
     56        struct gaim_connection *gc;
     57       
     58        int fd;
     59        void *ssl;
     60        char *txq;
     61        int tx_len;
     62        int r_inpa, w_inpa;
     63       
     64        struct xt_parser *xt;
     65        jabber_flags_t flags;
     66       
     67        char *username;         /* USERNAME@server */
     68        char *server;           /* username@SERVER -=> server/domain, not hostname */
     69       
     70        /* After changing one of these two (or the priority setting), call
     71           presence_send_update() to inform the server about the changes. */
     72        struct jabber_away_state *away_state;
     73        char *away_message;
     74       
     75        GHashTable *node_cache;
     76        GHashTable *buddies;
     77};
     78
     79struct jabber_away_state
     80{
     81        char code[5];
     82        char *full_name;
     83};
     84
     85typedef xt_status (*jabber_cache_event) ( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig );
     86
     87struct jabber_cache_entry
     88{
     89        struct xt_node *node;
     90        jabber_cache_event func;
     91};
     92
     93struct jabber_buddy
     94{
     95        char *handle;
     96        char *full_jid;
     97        char *resource;
     98       
     99        int priority;
     100        struct jabber_away_state *away_state;
     101        char *away_message;
     102       
     103        time_t last_act;
     104        int flags;
     105       
     106        struct jabber_buddy *next;
     107};
     108
     109/* iq.c */
     110xt_status jabber_pkt_iq( struct xt_node *node, gpointer data );
     111int jabber_init_iq_auth( struct gaim_connection *gc );
     112xt_status jabber_pkt_bind_sess( struct gaim_connection *gc, struct xt_node *node, struct xt_node *orig );
     113int jabber_get_roster( struct gaim_connection *gc );
     114int jabber_add_to_roster( struct gaim_connection *gc, char *handle, char *name );
     115int jabber_remove_from_roster( struct gaim_connection *gc, char *handle );
     116
     117/* message.c */
     118xt_status jabber_pkt_message( struct xt_node *node, gpointer data );
     119
     120/* presence.c */
     121xt_status jabber_pkt_presence( struct xt_node *node, gpointer data );
     122int presence_send_update( struct gaim_connection *gc );
     123int presence_send_request( struct gaim_connection *gc, char *handle, char *request );
     124
     125/* jabber_util.c */
     126char *set_eval_priority( set_t *set, char *value );
     127char *set_eval_tls( set_t *set, char *value );
     128struct xt_node *jabber_make_packet( char *name, char *type, char *to, struct xt_node *children );
     129struct xt_node *jabber_make_error_packet( struct xt_node *orig, char *err_cond, char *err_type );
     130void jabber_cache_add( struct gaim_connection *gc, struct xt_node *node, jabber_cache_event func );
     131struct xt_node *jabber_cache_get( struct gaim_connection *gc, char *id );
     132void jabber_cache_entry_free( gpointer entry );
     133void jabber_cache_clean( struct gaim_connection *gc );
     134const struct jabber_away_state *jabber_away_state_by_code( char *code );
     135const struct jabber_away_state *jabber_away_state_by_name( char *name );
     136void jabber_buddy_ask( struct gaim_connection *gc, char *handle );
     137struct jabber_buddy *jabber_buddy_add( struct gaim_connection *gc, char *full_jid );
     138struct jabber_buddy *jabber_buddy_by_jid( struct gaim_connection *gc, char *jid );
     139int jabber_buddy_remove( struct gaim_connection *gc, char *full_jid );
     140
     141extern const struct jabber_away_state jabber_away_state_list[];
     142
     143/* io.c */
     144int jabber_write_packet( struct gaim_connection *gc, struct xt_node *node );
     145int jabber_write( struct gaim_connection *gc, char *buf, int len );
     146gboolean jabber_connected_plain( gpointer data, gint source, b_input_condition cond );
     147gboolean jabber_connected_ssl( gpointer data, void *source, b_input_condition cond );
     148gboolean jabber_start_stream( struct gaim_connection *gc );
     149void jabber_end_stream( struct gaim_connection *gc );
     150
     151/* sasl.c */
     152xt_status sasl_pkt_mechanisms( struct xt_node *node, gpointer data );
     153xt_status sasl_pkt_challenge( struct xt_node *node, gpointer data );
     154xt_status sasl_pkt_result( struct xt_node *node, gpointer data );
     155gboolean sasl_supported( struct gaim_connection *gc );
     156
    35157#endif
    36 
    37 #include "lib.h"
    38 
    39 
    40 #ifndef INCL_JABBER_H
    41 #define INCL_JABBER_H
    42 
    43 #ifdef __cplusplus
    44 extern "C" {
    45 #endif
    46 
    47 /* --------------------------------------------------------- */
    48 /*                                                           */
    49 /* JID structures & constants                                */
    50 /*                                                           */
    51 /* --------------------------------------------------------- */
    52 #define JID_RESOURCE 1
    53 #define JID_USER     2
    54 #define JID_SERVER   4
    55 
    56 typedef struct jid_struct
    57 {
    58     pool               p;
    59     char*              resource;
    60     char*              user;
    61     char*              server;
    62     char*              full;
    63     struct jid_struct *next; /* for lists of jids */
    64 } *jid;
    65  
    66 jid     jid_new(pool p, char *idstr);          /* Creates a jabber id from the idstr */
    67 void    jid_set(jid id, char *str, int item);  /* Individually sets jid components */
    68 char*   jid_full(jid id);                      /* Builds a string type=user/resource@server from the jid data */
    69 int     jid_cmp(jid a, jid b);                 /* Compares two jid's, returns 0 for perfect match */
    70 int     jid_cmpx(jid a, jid b, int parts);     /* Compares just the parts specified as JID_|JID_ */
    71 jid     jid_append(jid a, jid b);              /* Appending b to a (list), no dups */
    72 xmlnode jid_xres(jid id);                      /* Returns xmlnode representation of the resource?query=string */
    73 xmlnode jid_nodescan(jid id, xmlnode x);       /* Scans the children of the node for a matching jid attribute */
    74 jid     jid_user(jid a);                       /* returns the same jid but just of the user@host part */
    75 
    76 
    77 /* --------------------------------------------------------- */
    78 /*                                                           */
    79 /* JPacket structures & constants                            */
    80 /*                                                           */
    81 /* --------------------------------------------------------- */
    82 #define JPACKET_UNKNOWN   0x00
    83 #define JPACKET_MESSAGE   0x01
    84 #define JPACKET_PRESENCE  0x02
    85 #define JPACKET_IQ        0x04
    86 #define JPACKET_S10N      0x08
    87 
    88 #define JPACKET__UNKNOWN      0
    89 #define JPACKET__NONE         1
    90 #define JPACKET__ERROR        2
    91 #define JPACKET__CHAT         3
    92 #define JPACKET__GROUPCHAT    4
    93 #define JPACKET__GET          5
    94 #define JPACKET__SET          6
    95 #define JPACKET__RESULT       7
    96 #define JPACKET__SUBSCRIBE    8
    97 #define JPACKET__SUBSCRIBED   9
    98 #define JPACKET__UNSUBSCRIBE  10
    99 #define JPACKET__UNSUBSCRIBED 11
    100 #define JPACKET__AVAILABLE    12
    101 #define JPACKET__UNAVAILABLE  13
    102 #define JPACKET__PROBE        14
    103 #define JPACKET__HEADLINE     15
    104 #define JPACKET__INVISIBLE    16
    105 
    106 typedef struct jpacket_struct
    107 {
    108     unsigned char type;
    109     int           subtype;
    110     int           flag;
    111     void*         aux1;
    112     xmlnode       x;
    113     jid           to;
    114     jid           from;
    115     char*         iqns;
    116     xmlnode       iq;
    117     pool          p;
    118 } *jpacket, _jpacket;
    119  
    120 jpacket jpacket_new(xmlnode x);     /* Creates a jabber packet from the xmlnode */
    121 int     jpacket_subtype(jpacket p); /* Returns the subtype value (looks at xmlnode for it) */
    122 
    123 
    124 /* --------------------------------------------------------- */
    125 /*                                                           */
    126 /* Presence Proxy DB structures & constants                  */
    127 /*                                                           */
    128 /* --------------------------------------------------------- */
    129 typedef struct ppdb_struct
    130 {                             
    131     jid     id;                /* entry data */
    132     int     pri;
    133     xmlnode x;
    134     struct ppdb_struct* user;  /* linked list for user@server */
    135     pool                p;     /* db-level data */
    136     struct ppdb_struct* next;
    137 } _ppdb, *ppdb;
    138 
    139 ppdb    ppdb_insert(ppdb db, jid id, xmlnode x); /* Inserts presence into the proxy */
    140 xmlnode ppdb_primary(ppdb db, jid id);           /* Fetches the matching primary presence for the id */
    141 void    ppdb_free(ppdb db);                      /* Frees the db and all entries */
    142 xmlnode ppdb_get(ppdb db, jid id);               /* Called successively to return each presence xmlnode */
    143                                                  /*   for the id and children, returns NULL at the end */
    144 
    145 
    146 /* --------------------------------------------------------- */
    147 /*                                                           */
    148 /* Simple Jabber Rate limit functions                        */
    149 /*                                                           */
    150 /* --------------------------------------------------------- */
    151 typedef struct jlimit_struct
    152 {
    153     char *key;
    154     int start;
    155     int points;
    156     int maxt, maxp;
    157     pool p;
    158 } *jlimit, _jlimit;
    159  
    160 jlimit jlimit_new(int maxt, int maxp);
    161 void jlimit_free(jlimit r);
    162 int jlimit_check(jlimit r, char *key, int points);
    163 
    164 
    165 /* --------------------------------------------------------- */
    166 /*                                                           */
    167 /* Error structures & constants                              */
    168 /*                                                           */
    169 /* --------------------------------------------------------- */
    170 typedef struct terror_struct
    171 {
    172     int  code;
    173     char msg[64];
    174 } terror;
    175 
    176 #define TERROR_BAD           (terror){400,"Bad Request"}
    177 #define TERROR_AUTH          (terror){401,"Unauthorized"}
    178 #define TERROR_PAY           (terror){402,"Payment Required"}
    179 #define TERROR_FORBIDDEN     (terror){403,"Forbidden"}
    180 #define TERROR_NOTFOUND      (terror){404,"Not Found"}
    181 #define TERROR_NOTALLOWED    (terror){405,"Not Allowed"}
    182 #define TERROR_NOTACCEPTABLE (terror){406,"Not Acceptable"}
    183 #define TERROR_REGISTER      (terror){407,"Registration Required"}
    184 #define TERROR_REQTIMEOUT    (terror){408,"Request Timeout"}
    185 #define TERROR_CONFLICT      (terror){409,"Conflict"}
    186 
    187 #define TERROR_INTERNAL   (terror){500,"Internal Server Error"}
    188 #define TERROR_NOTIMPL    (terror){501,"Not Implemented"}
    189 #define TERROR_EXTERNAL   (terror){502,"Remote Server Error"}
    190 #define TERROR_UNAVAIL    (terror){503,"Service Unavailable"}
    191 #define TERROR_EXTTIMEOUT (terror){504,"Remote Server Timeout"}
    192 #define TERROR_DISCONNECTED (terror){510,"Disconnected"}
    193 
    194 /* --------------------------------------------------------- */
    195 /*                                                           */
    196 /* Namespace constants                                       */
    197 /*                                                           */
    198 /* --------------------------------------------------------- */
    199 #define NSCHECK(x,n) (j_strcmp(xmlnode_get_attrib(x,"xmlns"),n) == 0)
    200 
    201 #define NS_CLIENT    "jabber:client"
    202 #define NS_SERVER    "jabber:server"
    203 #define NS_AUTH      "jabber:iq:auth"
    204 #define NS_REGISTER  "jabber:iq:register"
    205 #define NS_ROSTER    "jabber:iq:roster"
    206 #define NS_OFFLINE   "jabber:x:offline"
    207 #define NS_AGENT     "jabber:iq:agent"
    208 #define NS_AGENTS    "jabber:iq:agents"
    209 #define NS_DELAY     "jabber:x:delay"
    210 #define NS_VERSION   "jabber:iq:version"
    211 #define NS_TIME      "jabber:iq:time"
    212 #define NS_VCARD     "vcard-temp"
    213 #define NS_PRIVATE   "jabber:iq:private"
    214 #define NS_SEARCH    "jabber:iq:search"
    215 #define NS_OOB       "jabber:iq:oob"
    216 #define NS_XOOB      "jabber:x:oob"
    217 #define NS_ADMIN     "jabber:iq:admin"
    218 #define NS_FILTER    "jabber:iq:filter"
    219 #define NS_AUTH_0K   "jabber:iq:auth:0k"
    220 
    221 
    222 /* --------------------------------------------------------- */
    223 /*                                                           */
    224 /* Message Types                                             */
    225 /*                                                           */
    226 /* --------------------------------------------------------- */
    227 #define TMSG_NORMAL     "normal"
    228 #define TMSG_ERROR      "error"
    229 #define TMSG_CHAT       "chat"
    230 #define TMSG_GROUPCHAT  "groupchat"
    231 #define TMSG_HEADLINE   "headline"
    232 
    233 
    234 /* --------------------------------------------------------- */
    235 /*                                                           */
    236 /* JUtil functions                                           */
    237 /*                                                           */
    238 /* --------------------------------------------------------- */
    239 xmlnode jutil_presnew(int type, char *to, char *status); /* Create a skeleton presence packet */
    240 xmlnode jutil_iqnew(int type, char *ns);                 /* Create a skeleton iq packet */
    241 xmlnode jutil_msgnew(char *type, char *to, char *subj, char *body);
    242                                                          /* Create a skeleton message packet */
    243 xmlnode jutil_header(char* xmlns, char* server);         /* Create a skeleton stream packet */
    244 int     jutil_priority(xmlnode x);                       /* Determine priority of this packet */
    245 void    jutil_tofrom(xmlnode x);                         /* Swaps to/from fields on a packet */
    246 xmlnode jutil_iqresult(xmlnode x);                       /* Generate a skeleton iq/result, given a iq/query */
    247 char*   jutil_timestamp(void);                           /* Get stringified timestamp */
    248 void    jutil_error(xmlnode x, terror E);                /* Append an <error> node to x */
    249 void    jutil_delay(xmlnode msg, char *reason);          /* Append a delay packet to msg */
    250 char*   jutil_regkey(char *key, char *seed);             /* pass a seed to generate a key, pass the key again to validate (returns it) */
    251 
    252 
    253 /* --------------------------------------------------------- */
    254 /*                                                           */
    255 /* JConn structures & functions                              */
    256 /*                                                           */
    257 /* --------------------------------------------------------- */
    258 #define JCONN_STATE_OFF       0
    259 #define JCONN_STATE_CONNECTED 1
    260 #define JCONN_STATE_ON        2
    261 #define JCONN_STATE_AUTH      3
    262 
    263 typedef struct jconn_struct
    264 {
    265     /* Core structure */
    266     pool        p;             /* Memory allocation pool */
    267     int         state;     /* Connection state flag */
    268     int         fd;            /* Connection file descriptor */
    269     jid         user;      /* User info */
    270     char        *pass;     /* User passwd */
    271 
    272     /* Stream stuff */
    273     int         id;        /* id counter for jab_getid() function */
    274     char        idbuf[9];  /* temporary storage for jab_getid() */
    275     char        *sid;      /* stream id from server, for digest auth */
    276     XML_Parser  parser;    /* Parser instance */
    277     xmlnode     current;   /* Current node in parsing instance.. */
    278 
    279     /* Event callback ptrs */
    280     void (*on_state)(struct jconn_struct *j, int state);
    281     void (*on_packet)(struct jconn_struct *j, jpacket p);
    282 
    283 } *jconn, jconn_struct;
    284 
    285 typedef void (*jconn_state_h)(jconn j, int state);
    286 typedef void (*jconn_packet_h)(jconn j, jpacket p);
    287 
    288 
    289 jconn jab_new(char *user, char *pass);
    290 void jab_delete(jconn j);
    291 void jab_state_handler(jconn j, jconn_state_h h);
    292 void jab_packet_handler(jconn j, jconn_packet_h h);
    293 void jab_start(jconn j);
    294 void jab_stop(jconn j);
    295 
    296 int jab_getfd(jconn j);
    297 jid jab_getjid(jconn j);
    298 char *jab_getsid(jconn j);
    299 char *jab_getid(jconn j);
    300 
    301 void jab_send(jconn j, xmlnode x);
    302 void jab_send_raw(jconn j, const char *str);
    303 void jab_recv(jconn j);
    304 void jab_poll(jconn j, int timeout);
    305 
    306 char *jab_auth(jconn j);
    307 char *jab_reg(jconn j);
    308 
    309 
    310 
    311 #ifdef __cplusplus
    312 }
    313 #endif
    314 
    315 #endif  /* INCL_JABBER_H */
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