1 | /***************************************************************************\ |
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2 | * * |
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3 | * BitlBee - An IRC to IM gateway * |
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4 | * Jabber module - Handling of message(s) (tags), etc * |
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5 | * * |
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6 | * Copyright 2006-2012 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 | #include "jabber.h" |
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25 | |
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26 | static xt_status jabber_pkt_message_normal(struct xt_node *node, gpointer data, gboolean carbons_sent) |
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27 | { |
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28 | struct im_connection *ic = data; |
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29 | char *from = xt_find_attr(node, carbons_sent ? "to" : "from"); |
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30 | char *type = xt_find_attr(node, "type"); |
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31 | char *id = xt_find_attr(node, "id"); |
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32 | struct xt_node *body = xt_find_node(node->children, "body"), *c; |
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33 | struct xt_node *request = xt_find_node(node->children, "request"); |
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34 | struct jabber_buddy *bud = NULL; |
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35 | char *s, *room = NULL, *reason = NULL; |
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36 | |
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37 | if (!from) { |
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38 | return XT_HANDLED; /* Consider this packet corrupted. */ |
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39 | } |
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40 | |
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41 | if (request && id && g_strcmp0(type, "groupchat") != 0 && !carbons_sent) { |
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42 | /* Send a message receipt (XEP-0184), looking like this: |
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43 | * <message from='...' id='...' to='...'> |
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44 | * <received xmlns='urn:xmpp:receipts' id='richard2-4.1.247'/> |
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45 | * </message> |
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46 | * |
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47 | * MUC messages are excluded, since receipts aren't supposed to be sent over MUCs |
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48 | * (XEP-0184 section 5.3) and replying to those may result in 'forbidden' errors. |
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49 | */ |
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50 | struct xt_node *received, *receipt; |
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51 | |
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52 | received = xt_new_node("received", NULL, NULL); |
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53 | xt_add_attr(received, "xmlns", XMLNS_RECEIPTS); |
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54 | xt_add_attr(received, "id", id); |
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55 | receipt = jabber_make_packet("message", NULL, from, received); |
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56 | |
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57 | jabber_write_packet(ic, receipt); |
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58 | xt_free_node(receipt); |
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59 | } |
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60 | |
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61 | bud = jabber_buddy_by_jid(ic, from, GET_BUDDY_EXACT); |
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62 | |
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63 | if (type && strcmp(type, "error") == 0) { |
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64 | /* Handle type=error packet. */ |
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65 | } else if (type && from && strcmp(type, "groupchat") == 0) { |
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66 | jabber_chat_pkt_message(ic, bud, node); |
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67 | } else { /* "chat", "normal", "headline", no-type or whatever. Should all be pretty similar. */ |
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68 | GString *fullmsg = g_string_new(""); |
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69 | |
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70 | for (c = node->children; (c = xt_find_node(c, "x")); c = c->next) { |
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71 | char *ns = xt_find_attr(c, "xmlns"); |
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72 | struct xt_node *inv; |
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73 | |
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74 | if (ns && strcmp(ns, XMLNS_MUC_USER) == 0 && |
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75 | (inv = xt_find_node(c->children, "invite"))) { |
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76 | /* This is an invitation. Set some vars which |
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77 | will be passed to imcb_chat_invite() below. */ |
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78 | room = from; |
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79 | if ((from = xt_find_attr(inv, "from")) == NULL) { |
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80 | from = room; |
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81 | } |
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82 | if ((inv = xt_find_node(inv->children, "reason")) && inv->text_len > 0) { |
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83 | reason = inv->text; |
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84 | } |
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85 | } |
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86 | } |
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87 | |
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88 | if ((s = strchr(from, '/'))) { |
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89 | if (bud) { |
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90 | bud->last_msg = time(NULL); |
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91 | from = bud->ext_jid ? bud->ext_jid : bud->bare_jid; |
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92 | } else { |
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93 | *s = 0; /* We need to generate a bare JID now. */ |
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94 | } |
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95 | } |
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96 | |
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97 | if (type && strcmp(type, "headline") == 0) { |
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98 | if ((c = xt_find_node(node->children, "subject")) && c->text_len > 0) { |
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99 | g_string_append_printf(fullmsg, "Headline: %s\n", c->text); |
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100 | } |
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101 | |
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102 | /* <x xmlns="jabber:x:oob"><url>http://....</url></x> can contain a URL, it seems. */ |
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103 | for (c = node->children; c; c = c->next) { |
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104 | struct xt_node *url; |
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105 | |
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106 | if ((url = xt_find_node(c->children, "url")) && url->text_len > 0) { |
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107 | g_string_append_printf(fullmsg, "URL: %s\n", url->text); |
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108 | } |
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109 | } |
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110 | } else if ((c = xt_find_node(node->children, "subject")) && c->text_len > 0 && |
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111 | (!bud || !(bud->flags & JBFLAG_HIDE_SUBJECT))) { |
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112 | g_string_append_printf(fullmsg, "<< \002BitlBee\002 - Message with subject: %s >>\n", c->text); |
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113 | if (bud) { |
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114 | bud->flags |= JBFLAG_HIDE_SUBJECT; |
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115 | } |
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116 | } else if (bud && !c) { |
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117 | /* Yeah, possibly we're hiding changes to this field now. But nobody uses |
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118 | this for anything useful anyway, except GMail when people reply to an |
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119 | e-mail via chat, repeating the same subject all the time. I don't want |
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120 | to have to remember full subject strings for everyone. */ |
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121 | bud->flags &= ~JBFLAG_HIDE_SUBJECT; |
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122 | } |
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123 | |
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124 | if (body && body->text_len > 0) { /* Could be just a typing notification. */ |
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125 | fullmsg = g_string_append(fullmsg, body->text); |
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126 | } |
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127 | |
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128 | if (fullmsg->len > 0) { |
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129 | imcb_buddy_msg(ic, from, fullmsg->str, |
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130 | carbons_sent ? OPT_SELFMESSAGE : 0, jabber_get_timestamp(node)); |
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131 | } |
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132 | if (room) { |
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133 | imcb_chat_invite(ic, room, from, reason); |
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134 | } |
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135 | |
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136 | g_string_free(fullmsg, TRUE); |
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137 | |
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138 | /* Handling of incoming typing notifications. */ |
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139 | if (bud == NULL || carbons_sent) { |
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140 | /* Can't handle these for unknown buddies. |
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141 | And ignore them if it's just carbons */ |
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142 | } else if (xt_find_node(node->children, "composing")) { |
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143 | bud->flags |= JBFLAG_DOES_XEP85; |
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144 | imcb_buddy_typing(ic, from, OPT_TYPING); |
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145 | } |
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146 | else if (xt_find_node(node->children, "active")) { |
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147 | bud->flags |= JBFLAG_DOES_XEP85; |
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148 | |
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149 | /* No need to send a "stopped typing" signal when there's a message. */ |
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150 | if (body == NULL) { |
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151 | imcb_buddy_typing(ic, from, 0); |
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152 | } |
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153 | } else if (xt_find_node(node->children, "paused")) { |
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154 | bud->flags |= JBFLAG_DOES_XEP85; |
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155 | imcb_buddy_typing(ic, from, OPT_THINKING); |
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156 | } |
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157 | |
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158 | if (s) { |
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159 | *s = '/'; /* And convert it back to a full JID. */ |
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160 | } |
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161 | } |
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162 | |
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163 | return XT_HANDLED; |
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164 | } |
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165 | |
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166 | static xt_status jabber_carbons_message(struct xt_node *node, gpointer data) |
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167 | { |
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168 | struct im_connection *ic = data; |
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169 | struct xt_node *wrap, *fwd, *msg; |
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170 | gboolean carbons_sent; |
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171 | |
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172 | if ((wrap = xt_find_node(node->children, "received"))) { |
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173 | carbons_sent = FALSE; |
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174 | } else if ((wrap = xt_find_node(node->children, "sent"))) { |
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175 | carbons_sent = TRUE; |
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176 | } |
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177 | |
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178 | if (wrap == NULL || g_strcmp0(xt_find_attr(wrap, "xmlns"), XMLNS_CARBONS) != 0) { |
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179 | return XT_NEXT; |
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180 | } |
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181 | |
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182 | if (!(fwd = xt_find_node(wrap->children, "forwarded")) || |
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183 | (g_strcmp0(xt_find_attr(fwd, "xmlns"), XMLNS_FORWARDING) != 0) || |
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184 | !(msg = xt_find_node(fwd->children, "message"))) { |
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185 | imcb_log(ic, "Error: Invalid carbons message received"); |
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186 | return XT_ABORT; |
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187 | } |
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188 | |
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189 | return jabber_pkt_message_normal(msg, data, carbons_sent); |
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190 | } |
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191 | |
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192 | xt_status jabber_pkt_message(struct xt_node *node, gpointer data) |
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193 | { |
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194 | struct im_connection *ic = data; |
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195 | struct jabber_data *jd = ic->proto_data; |
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196 | char *from = xt_find_attr(node, "from"); |
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197 | |
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198 | if (jabber_compare_jid(jd->me, from)) { /* Probably a Carbons message */ |
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199 | xt_status st = jabber_carbons_message(node, data); |
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200 | if (st == XT_HANDLED || st == XT_ABORT) { |
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201 | return st; |
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202 | } |
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203 | } |
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204 | return jabber_pkt_message_normal(node, data, FALSE); |
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205 | } |
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