1 | /********************************************************************\ |
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2 | * BitlBee -- An IRC to other IM-networks gateway * |
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3 | * * |
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4 | * Copyright 2002-2004 Wilmer van der Gaast and others * |
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5 | \********************************************************************/ |
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6 | |
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7 | /* MSN module - Miscellaneous utilities */ |
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8 | |
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9 | /* |
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10 | This program is free software; you can redistribute it and/or modify |
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11 | it under the terms of the GNU General Public License as published by |
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12 | the Free Software Foundation; either version 2 of the License, or |
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13 | (at your option) any later version. |
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14 | |
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15 | This program is distributed in the hope that it will be useful, |
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16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 | GNU General Public License for more details. |
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19 | |
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20 | You should have received a copy of the GNU General Public License with |
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21 | the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL; |
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22 | if not, write to the Free Software Foundation, Inc., 59 Temple Place, |
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23 | Suite 330, Boston, MA 02111-1307 USA |
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24 | */ |
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25 | |
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26 | #include "nogaim.h" |
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27 | #include "msn.h" |
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28 | #include <ctype.h> |
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29 | |
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30 | int msn_write( struct gaim_connection *gc, char *s, int len ) |
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31 | { |
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32 | struct msn_data *md = gc->proto_data; |
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33 | int st; |
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34 | |
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35 | st = write( md->fd, s, len ); |
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36 | if( st != len ) |
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37 | { |
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38 | hide_login_progress_error( gc, "Short write() to main server" ); |
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39 | signoff( gc ); |
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40 | return( 0 ); |
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41 | } |
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42 | |
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43 | return( 1 ); |
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44 | } |
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45 | |
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46 | int msn_logged_in( struct gaim_connection *gc ) |
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47 | { |
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48 | account_online( gc ); |
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49 | |
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50 | return( 0 ); |
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51 | } |
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52 | |
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53 | int msn_buddy_list_add( struct gaim_connection *gc, char *list, char *who, char *realname_ ) |
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54 | { |
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55 | struct msn_data *md = gc->proto_data; |
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56 | GSList *l, **lp = NULL; |
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57 | char buf[1024], *realname; |
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58 | |
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59 | if( strcmp( list, "AL" ) == 0 ) |
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60 | lp = &gc->permit; |
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61 | else if( strcmp( list, "BL" ) == 0 ) |
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62 | lp = &gc->deny; |
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63 | |
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64 | if( lp ) |
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65 | for( l = *lp; l; l = l->next ) |
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66 | if( g_strcasecmp( l->data, who ) == 0 ) |
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67 | return( 1 ); |
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68 | |
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69 | realname = g_new0( char, strlen( realname_ ) * 3 + 1 ); |
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70 | strcpy( realname, realname_ ); |
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71 | http_encode( realname ); |
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72 | |
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73 | g_snprintf( buf, sizeof( buf ), "ADD %d %s %s %s\r\n", ++md->trId, list, who, realname ); |
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74 | if( msn_write( gc, buf, strlen( buf ) ) ) |
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75 | { |
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76 | g_free( realname ); |
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77 | |
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78 | if( lp ) |
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79 | *lp = g_slist_append( *lp, g_strdup( who ) ); |
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80 | |
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81 | return( 1 ); |
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82 | } |
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83 | |
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84 | g_free( realname ); |
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85 | |
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86 | return( 0 ); |
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87 | } |
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88 | |
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89 | int msn_buddy_list_remove( struct gaim_connection *gc, char *list, char *who ) |
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90 | { |
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91 | struct msn_data *md = gc->proto_data; |
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92 | GSList *l = NULL, **lp = NULL; |
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93 | char buf[1024]; |
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94 | |
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95 | if( strcmp( list, "AL" ) == 0 ) |
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96 | lp = &gc->permit; |
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97 | else if( strcmp( list, "BL" ) == 0 ) |
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98 | lp = &gc->deny; |
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99 | |
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100 | if( lp ) |
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101 | { |
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102 | for( l = *lp; l; l = l->next ) |
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103 | if( g_strcasecmp( l->data, who ) == 0 ) |
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104 | break; |
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105 | |
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106 | if( !l ) |
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107 | return( 1 ); |
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108 | } |
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109 | |
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110 | g_snprintf( buf, sizeof( buf ), "REM %d %s %s\r\n", ++md->trId, list, who ); |
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111 | if( msn_write( gc, buf, strlen( buf ) ) ) |
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112 | { |
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113 | if( lp ) |
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114 | *lp = g_slist_remove( *lp, l->data ); |
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115 | |
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116 | return( 1 ); |
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117 | } |
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118 | |
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119 | return( 0 ); |
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120 | } |
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121 | |
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122 | struct msn_buddy_ask_data |
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123 | { |
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124 | struct gaim_connection *gc; |
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125 | char *handle; |
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126 | char *realname; |
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127 | }; |
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128 | |
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129 | static void msn_buddy_ask_yes( gpointer w, struct msn_buddy_ask_data *bla ) |
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130 | { |
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131 | msn_buddy_list_add( bla->gc, "AL", bla->handle, bla->realname ); |
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132 | |
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133 | if( find_buddy( bla->gc, bla->handle ) == NULL ) |
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134 | show_got_added( bla->gc, bla->handle, NULL ); |
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135 | |
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136 | g_free( bla->handle ); |
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137 | g_free( bla->realname ); |
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138 | g_free( bla ); |
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139 | } |
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140 | |
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141 | static void msn_buddy_ask_no( gpointer w, struct msn_buddy_ask_data *bla ) |
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142 | { |
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143 | msn_buddy_list_add( bla->gc, "BL", bla->handle, bla->realname ); |
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144 | |
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145 | g_free( bla->handle ); |
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146 | g_free( bla->realname ); |
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147 | g_free( bla ); |
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148 | } |
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149 | |
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150 | void msn_buddy_ask( struct gaim_connection *gc, char *handle, char *realname ) |
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151 | { |
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152 | struct msn_buddy_ask_data *bla = g_new0( struct msn_buddy_ask_data, 1 ); |
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153 | char buf[1024]; |
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154 | |
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155 | bla->gc = gc; |
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156 | bla->handle = g_strdup( handle ); |
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157 | bla->realname = g_strdup( realname ); |
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158 | |
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159 | g_snprintf( buf, sizeof( buf ), |
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160 | "The user %s (%s) wants to add you to his/her buddy list.", |
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161 | handle, realname ); |
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162 | do_ask_dialog( gc, buf, bla, msn_buddy_ask_yes, msn_buddy_ask_no ); |
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163 | } |
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164 | |
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165 | char *msn_findheader( char *text, char *header, int len ) |
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166 | { |
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167 | int hlen = strlen( header ), i; |
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168 | char *ret; |
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169 | |
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170 | if( len == 0 ) |
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171 | len = strlen( text ); |
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172 | |
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173 | i = 0; |
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174 | while( ( i + hlen ) < len ) |
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175 | { |
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176 | /* Maybe this is a bit over-commented, but I just hate this part... */ |
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177 | if( g_strncasecmp( text + i, header, hlen ) == 0 ) |
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178 | { |
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179 | /* Skip to the (probable) end of the header */ |
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180 | i += hlen; |
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181 | |
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182 | /* Find the first non-[: \t] character */ |
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183 | while( i < len && ( text[i] == ':' || text[i] == ' ' || text[i] == '\t' ) ) i ++; |
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184 | |
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185 | /* Make sure we're still inside the string */ |
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186 | if( i >= len ) return( NULL ); |
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187 | |
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188 | /* Save the position */ |
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189 | ret = text + i; |
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190 | |
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191 | /* Search for the end of this line */ |
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192 | while( i < len && text[i] != '\r' && text[i] != '\n' ) i ++; |
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193 | |
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194 | /* Make sure we're still inside the string */ |
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195 | if( i >= len ) return( NULL ); |
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196 | |
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197 | /* Copy the found data */ |
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198 | return( g_strndup( ret, text + i - ret ) ); |
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199 | } |
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200 | |
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201 | /* This wasn't the header we were looking for, skip to the next line. */ |
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202 | while( i < len && ( text[i] != '\r' && text[i] != '\n' ) ) i ++; |
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203 | while( i < len && ( text[i] == '\r' || text[i] == '\n' ) ) i ++; |
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204 | |
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205 | /* End of headers? */ |
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206 | if( strncmp( text + i - 2, "\n\n", 2 ) == 0 || |
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207 | strncmp( text + i - 4, "\r\n\r\n", 4 ) == 0 || |
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208 | strncmp( text + i - 2, "\r\r", 2 ) == 0 ) |
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209 | { |
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210 | break; |
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211 | } |
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212 | } |
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213 | |
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214 | return( NULL ); |
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215 | } |
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216 | |
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217 | /* *NOT* thread-safe, but that's not a problem for now... */ |
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218 | char **msn_linesplit( char *line ) |
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219 | { |
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220 | static char **ret = NULL; |
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221 | static int size = 3; |
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222 | int i, n = 0; |
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223 | |
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224 | if( ret == NULL ) |
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225 | ret = g_new0( char*, size ); |
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226 | |
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227 | for( i = 0; line[i] && line[i] == ' '; i ++ ); |
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228 | if( line[i] ) |
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229 | { |
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230 | ret[n++] = line + i; |
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231 | for( i ++; line[i]; i ++ ) |
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232 | { |
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233 | if( line[i] == ' ' ) |
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234 | line[i] = 0; |
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235 | else if( line[i] != ' ' && !line[i-1] ) |
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236 | ret[n++] = line + i; |
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237 | |
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238 | if( n >= size ) |
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239 | ret = g_renew( char*, ret, size += 2 ); |
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240 | } |
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241 | } |
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242 | ret[n] = NULL; |
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243 | |
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244 | return( ret ); |
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245 | } |
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246 | |
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247 | /* This one handles input from a MSN Messenger server. Both the NS and SB servers usually give |
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248 | commands, but sometimes they give additional data (payload). This function tries to handle |
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249 | this all in a nice way and send all data to the right places. */ |
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250 | |
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251 | /* Return values: -1: Read error, abort connection. |
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252 | 0: Command reported error; Abort *immediately*. (The connection does not exist anymore) |
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253 | 1: OK */ |
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254 | |
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255 | int msn_handler( struct msn_handler_data *h ) |
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256 | { |
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257 | int st; |
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258 | |
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259 | h->rxq = g_renew( char, h->rxq, h->rxlen + 1024 ); |
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260 | st = read( h->fd, h->rxq + h->rxlen, 1024 ); |
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261 | h->rxlen += st; |
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262 | |
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263 | if( st <= 0 ) |
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264 | return( -1 ); |
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265 | |
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266 | while( st ) |
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267 | { |
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268 | int i; |
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269 | |
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270 | if( h->msglen == 0 ) |
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271 | { |
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272 | for( i = 0; i < h->rxlen; i ++ ) |
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273 | { |
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274 | if( h->rxq[i] == '\r' || h->rxq[i] == '\n' ) |
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275 | { |
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276 | char *cmd_text, **cmd; |
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277 | int count; |
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278 | |
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279 | cmd_text = g_strndup( h->rxq, i ); |
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280 | cmd = msn_linesplit( cmd_text ); |
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281 | for( count = 0; cmd[count]; count ++ ); |
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282 | st = h->exec_command( h->data, cmd, count ); |
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283 | g_free( cmd_text ); |
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284 | |
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285 | /* If the connection broke, don't continue. We don't even exist anymore. */ |
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286 | if( !st ) |
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287 | return( 0 ); |
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288 | |
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289 | if( h->msglen ) |
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290 | h->cmd_text = g_strndup( h->rxq, i ); |
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291 | |
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292 | /* Skip to the next non-emptyline */ |
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293 | while( i < h->rxlen && ( h->rxq[i] == '\r' || h->rxq[i] == '\n' ) ) i ++; |
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294 | |
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295 | break; |
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296 | } |
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297 | } |
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298 | |
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299 | /* If we reached the end of the buffer, there's still an incomplete command there. |
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300 | Return and wait for more data. */ |
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301 | if( i == h->rxlen && h->rxq[i-1] != '\r' && h->rxq[i-1] != '\n' ) |
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302 | break; |
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303 | } |
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304 | else |
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305 | { |
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306 | char *msg, **cmd; |
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307 | int count; |
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308 | |
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309 | /* Do we have the complete message already? */ |
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310 | if( h->msglen > h->rxlen ) |
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311 | break; |
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312 | |
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313 | msg = g_strndup( h->rxq, h->msglen ); |
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314 | cmd = msn_linesplit( h->cmd_text ); |
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315 | for( count = 0; cmd[count]; count ++ ); |
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316 | |
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317 | st = h->exec_message( h->data, msg, h->msglen, cmd, count ); |
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318 | g_free( msg ); |
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319 | g_free( h->cmd_text ); |
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320 | h->cmd_text = NULL; |
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321 | |
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322 | if( !st ) |
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323 | return( 0 ); |
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324 | |
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325 | i = h->msglen; |
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326 | h->msglen = 0; |
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327 | } |
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328 | |
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329 | /* More data after this block? */ |
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330 | if( i < h->rxlen ) |
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331 | { |
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332 | char *tmp; |
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333 | |
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334 | tmp = g_memdup( h->rxq + i, h->rxlen - i ); |
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335 | g_free( h->rxq ); |
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336 | h->rxq = tmp; |
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337 | h->rxlen -= i; |
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338 | i = 0; |
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339 | } |
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340 | else |
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341 | /* If not, reset the rx queue and get lost. */ |
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342 | { |
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343 | g_free( h->rxq ); |
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344 | h->rxq = g_new0( char, 1 ); |
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345 | h->rxlen = 0; |
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346 | return( 1 ); |
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347 | } |
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348 | } |
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349 | |
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350 | return( 1 ); |
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351 | } |
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