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