1 | /***************************************************************************\ |
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2 | * * |
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3 | * BitlBee - An IRC to IM gateway * |
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4 | * Simple module to facilitate twitter functionality. * |
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5 | * * |
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6 | * Copyright 2009 Geert Mulders <g.c.w.m.mulders@gmail.com> * |
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7 | * * |
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8 | * This library is free software; you can redistribute it and/or * |
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9 | * modify it under the terms of the GNU Lesser General Public * |
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10 | * License as published by the Free Software Foundation, version * |
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11 | * 2.1. * |
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12 | * * |
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13 | * This library 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 GNU * |
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16 | * Lesser 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 Lesser General Public License * |
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19 | * along with this library; if not, write to the Free Software Foundation, * |
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20 | * Inc., 51 Franklin St, 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 "nogaim.h" |
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25 | #include "oauth.h" |
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26 | #include "twitter.h" |
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27 | #include "twitter_http.h" |
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28 | #include "twitter_lib.h" |
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29 | #include "url.h" |
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30 | |
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31 | /** |
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32 | * Main loop function |
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33 | */ |
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34 | gboolean twitter_main_loop(gpointer data, gint fd, b_input_condition cond) |
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35 | { |
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36 | struct im_connection *ic = data; |
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37 | |
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38 | // Check if we are still logged in... |
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39 | if (!g_slist_find( twitter_connections, ic )) |
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40 | return 0; |
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41 | |
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42 | // If the user uses multiple private message windows we need to get the |
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43 | // users buddies. |
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44 | if (g_strcasecmp(set_getstr(&ic->acc->set, "mode"), "many") == 0) |
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45 | twitter_get_statuses_friends(ic, -1); |
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46 | |
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47 | // Do stuff.. |
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48 | twitter_get_home_timeline(ic, -1); |
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49 | |
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50 | // If we are still logged in run this function again after timeout. |
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51 | return (ic->flags & OPT_LOGGED_IN) == OPT_LOGGED_IN; |
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52 | } |
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53 | |
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54 | static void twitter_main_loop_start( struct im_connection *ic ) |
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55 | { |
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56 | struct twitter_data *td = ic->proto_data; |
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57 | |
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58 | imcb_log( ic, "Connecting to Twitter" ); |
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59 | |
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60 | // Run this once. After this queue the main loop function. |
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61 | twitter_main_loop(ic, -1, 0); |
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62 | |
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63 | // Queue the main_loop |
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64 | // Save the return value, so we can remove the timeout on logout. |
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65 | td->main_loop_id = b_timeout_add(60000, twitter_main_loop, ic); |
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66 | } |
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67 | |
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68 | |
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69 | static const struct oauth_service twitter_oauth = |
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70 | { |
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71 | "http://api.twitter.com/oauth/request_token", |
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72 | "http://api.twitter.com/oauth/access_token", |
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73 | "https://api.twitter.com/oauth/authorize", |
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74 | .consumer_key = "xsDNKJuNZYkZyMcu914uEA", |
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75 | .consumer_secret = "FCxqcr0pXKzsF9ajmP57S3VQ8V6Drk4o2QYtqMcOszo", |
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76 | }; |
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77 | |
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78 | static gboolean twitter_oauth_callback( struct oauth_info *info ); |
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79 | |
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80 | static void twitter_oauth_start( struct im_connection *ic ) |
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81 | { |
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82 | struct twitter_data *td = ic->proto_data; |
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83 | |
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84 | imcb_log( ic, "Requesting OAuth request token" ); |
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85 | |
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86 | td->oauth_info = oauth_request_token( &twitter_oauth, twitter_oauth_callback, ic ); |
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87 | } |
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88 | |
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89 | static gboolean twitter_oauth_callback( struct oauth_info *info ) |
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90 | { |
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91 | struct im_connection *ic = info->data; |
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92 | struct twitter_data *td; |
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93 | |
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94 | if( !g_slist_find( twitter_connections, ic ) ) |
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95 | return FALSE; |
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96 | |
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97 | td = ic->proto_data; |
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98 | if( info->stage == OAUTH_REQUEST_TOKEN ) |
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99 | { |
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100 | char name[strlen(ic->acc->user)+9], *msg; |
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101 | |
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102 | if( info->request_token == NULL ) |
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103 | { |
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104 | imcb_error( ic, "OAuth error: %s", info->http->status_string ); |
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105 | imc_logout( ic, TRUE ); |
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106 | return FALSE; |
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107 | } |
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108 | |
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109 | sprintf( name, "twitter_%s", ic->acc->user ); |
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110 | msg = g_strdup_printf( "To finish OAuth authentication, please visit " |
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111 | "%s and respond with the resulting PIN code.", |
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112 | info->auth_url ); |
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113 | imcb_buddy_msg( ic, name, msg, 0, 0 ); |
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114 | g_free( msg ); |
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115 | } |
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116 | else if( info->stage == OAUTH_ACCESS_TOKEN ) |
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117 | { |
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118 | if( info->token == NULL || info->token_secret == NULL ) |
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119 | { |
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120 | imcb_error( ic, "OAuth error: %s", info->http->status_string ); |
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121 | imc_logout( ic, TRUE ); |
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122 | return FALSE; |
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123 | } |
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124 | |
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125 | /* IM mods didn't do this so far and it's ugly but I should |
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126 | be able to get away with it... */ |
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127 | g_free( ic->acc->pass ); |
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128 | ic->acc->pass = oauth_to_string( info ); |
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129 | |
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130 | twitter_main_loop_start( ic ); |
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131 | } |
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132 | |
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133 | return TRUE; |
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134 | } |
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135 | |
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136 | |
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137 | static char *set_eval_mode( set_t *set, char *value ) |
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138 | { |
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139 | if( g_strcasecmp( value, "one" ) == 0 || |
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140 | g_strcasecmp( value, "many" ) == 0 || |
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141 | g_strcasecmp( value, "chat" ) == 0 ) |
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142 | return value; |
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143 | else |
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144 | return NULL; |
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145 | } |
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146 | |
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147 | static gboolean twitter_length_check( struct im_connection *ic, gchar *msg ) |
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148 | { |
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149 | int max = set_getint( &ic->acc->set, "message_length" ), len; |
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150 | |
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151 | if( max == 0 || ( len = g_utf8_strlen( msg, -1 ) ) <= max ) |
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152 | return TRUE; |
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153 | |
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154 | imcb_error( ic, "Maximum message length exceeded: %d > %d", len, max ); |
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155 | |
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156 | return FALSE; |
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157 | } |
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158 | |
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159 | static void twitter_init( account_t *acc ) |
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160 | { |
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161 | set_t *s; |
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162 | |
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163 | s = set_add( &acc->set, "base_url", TWITTER_API_URL, NULL, acc ); |
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164 | s->flags |= ACC_SET_OFFLINE_ONLY; |
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165 | |
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166 | s = set_add( &acc->set, "message_length", "140", set_eval_int, acc ); |
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167 | |
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168 | s = set_add( &acc->set, "mode", "one", set_eval_mode, acc ); |
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169 | s->flags |= ACC_SET_OFFLINE_ONLY; |
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170 | |
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171 | s = set_add( &acc->set, "oauth", "true", set_eval_bool, acc ); |
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172 | } |
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173 | |
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174 | /** |
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175 | * Login method. Since the twitter API works with seperate HTTP request we |
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176 | * only save the user and pass to the twitter_data object. |
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177 | */ |
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178 | static void twitter_login( account_t *acc ) |
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179 | { |
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180 | struct im_connection *ic = imcb_new( acc ); |
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181 | struct twitter_data *td; |
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182 | char name[strlen(acc->user)+9]; |
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183 | url_t url; |
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184 | |
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185 | if( !url_set( &url, set_getstr( &ic->acc->set, "base_url" ) ) || |
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186 | ( url.proto != PROTO_HTTP && url.proto != PROTO_HTTPS ) ) |
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187 | { |
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188 | imcb_error( ic, "Incorrect API base URL: %s", set_getstr( &ic->acc->set, "base_url" ) ); |
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189 | imc_logout( ic, FALSE ); |
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190 | return; |
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191 | } |
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192 | |
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193 | twitter_connections = g_slist_append( twitter_connections, ic ); |
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194 | td = g_new0( struct twitter_data, 1 ); |
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195 | ic->proto_data = td; |
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196 | |
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197 | td->url_ssl = url.proto == PROTO_HTTPS; |
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198 | td->url_port = url.port; |
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199 | td->url_host = g_strdup( url.host ); |
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200 | if( strcmp( url.file, "/" ) != 0 ) |
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201 | td->url_path = g_strdup( url.file ); |
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202 | else |
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203 | td->url_path = g_strdup( "" ); |
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204 | |
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205 | td->user = acc->user; |
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206 | if( strstr( acc->pass, "oauth_token=" ) ) |
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207 | td->oauth_info = oauth_from_string( acc->pass, &twitter_oauth ); |
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208 | |
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209 | sprintf( name, "twitter_%s", acc->user ); |
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210 | imcb_add_buddy( ic, name, NULL ); |
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211 | imcb_buddy_status( ic, name, OPT_LOGGED_IN, NULL, NULL ); |
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212 | |
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213 | if( td->oauth_info || !set_getbool( &acc->set, "oauth" ) ) |
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214 | twitter_main_loop_start( ic ); |
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215 | else |
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216 | twitter_oauth_start( ic ); |
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217 | } |
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218 | |
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219 | /** |
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220 | * Logout method. Just free the twitter_data. |
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221 | */ |
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222 | static void twitter_logout( struct im_connection *ic ) |
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223 | { |
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224 | struct twitter_data *td = ic->proto_data; |
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225 | |
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226 | // Set the status to logged out. |
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227 | ic->flags = 0; |
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228 | |
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229 | // Remove the main_loop function from the function queue. |
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230 | b_event_remove(td->main_loop_id); |
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231 | |
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232 | if(td->home_timeline_gc) |
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233 | imcb_chat_free(td->home_timeline_gc); |
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234 | |
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235 | if( td ) |
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236 | { |
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237 | oauth_info_free( td->oauth_info ); |
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238 | g_free( td->url_host ); |
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239 | g_free( td->url_path ); |
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240 | g_free( td->pass ); |
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241 | g_free( td ); |
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242 | } |
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243 | |
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244 | twitter_connections = g_slist_remove( twitter_connections, ic ); |
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245 | } |
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246 | |
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247 | /** |
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248 | * |
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249 | */ |
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250 | static int twitter_buddy_msg( struct im_connection *ic, char *who, char *message, int away ) |
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251 | { |
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252 | struct twitter_data *td = ic->proto_data; |
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253 | |
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254 | if (g_strncasecmp(who, "twitter_", 8) == 0 && |
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255 | g_strcasecmp(who + 8, ic->acc->user) == 0) |
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256 | { |
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257 | if( set_getbool( &ic->acc->set, "oauth" ) && |
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258 | td->oauth_info && td->oauth_info->token == NULL ) |
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259 | { |
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260 | if( !oauth_access_token( message, td->oauth_info ) ) |
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261 | { |
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262 | imcb_error( ic, "OAuth error: %s", "Failed to send access token request" ); |
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263 | imc_logout( ic, TRUE ); |
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264 | return FALSE; |
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265 | } |
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266 | } |
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267 | else if( twitter_length_check(ic, message) ) |
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268 | twitter_post_status(ic, message); |
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269 | } |
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270 | else |
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271 | { |
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272 | twitter_direct_messages_new(ic, who, message); |
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273 | } |
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274 | return( 0 ); |
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275 | } |
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276 | |
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277 | /** |
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278 | * |
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279 | */ |
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280 | static void twitter_set_my_name( struct im_connection *ic, char *info ) |
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281 | { |
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282 | } |
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283 | |
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284 | static void twitter_get_info(struct im_connection *ic, char *who) |
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285 | { |
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286 | } |
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287 | |
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288 | static void twitter_add_buddy( struct im_connection *ic, char *who, char *group ) |
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289 | { |
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290 | twitter_friendships_create_destroy(ic, who, 1); |
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291 | } |
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292 | |
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293 | static void twitter_remove_buddy( struct im_connection *ic, char *who, char *group ) |
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294 | { |
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295 | twitter_friendships_create_destroy(ic, who, 0); |
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296 | } |
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297 | |
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298 | static void twitter_chat_msg( struct groupchat *c, char *message, int flags ) |
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299 | { |
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300 | if( c && message && twitter_length_check(c->ic, message)) |
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301 | twitter_post_status(c->ic, message); |
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302 | } |
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303 | |
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304 | static void twitter_chat_invite( struct groupchat *c, char *who, char *message ) |
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305 | { |
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306 | } |
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307 | |
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308 | static void twitter_chat_leave( struct groupchat *c ) |
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309 | { |
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310 | struct twitter_data *td = c->ic->proto_data; |
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311 | |
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312 | if( c != td->home_timeline_gc ) |
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313 | return; /* WTF? */ |
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314 | |
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315 | /* If the user leaves the channel: Fine. Rejoin him/her once new |
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316 | tweets come in. */ |
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317 | imcb_chat_free(td->home_timeline_gc); |
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318 | td->home_timeline_gc = NULL; |
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319 | } |
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320 | |
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321 | static struct groupchat *twitter_chat_with( struct im_connection *ic, char *who ) |
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322 | { |
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323 | return NULL; |
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324 | } |
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325 | |
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326 | static void twitter_keepalive( struct im_connection *ic ) |
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327 | { |
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328 | } |
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329 | |
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330 | static void twitter_add_permit( struct im_connection *ic, char *who ) |
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331 | { |
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332 | } |
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333 | |
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334 | static void twitter_rem_permit( struct im_connection *ic, char *who ) |
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335 | { |
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336 | } |
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337 | |
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338 | static void twitter_add_deny( struct im_connection *ic, char *who ) |
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339 | { |
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340 | } |
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341 | |
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342 | static void twitter_rem_deny( struct im_connection *ic, char *who ) |
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343 | { |
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344 | } |
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345 | |
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346 | static int twitter_send_typing( struct im_connection *ic, char *who, int typing ) |
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347 | { |
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348 | return( 1 ); |
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349 | } |
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350 | |
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351 | //static char *twitter_set_display_name( set_t *set, char *value ) |
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352 | //{ |
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353 | // return value; |
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354 | //} |
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355 | |
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356 | void twitter_initmodule() |
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357 | { |
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358 | struct prpl *ret = g_new0(struct prpl, 1); |
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359 | |
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360 | ret->name = "twitter"; |
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361 | ret->login = twitter_login; |
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362 | ret->init = twitter_init; |
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363 | ret->logout = twitter_logout; |
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364 | ret->buddy_msg = twitter_buddy_msg; |
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365 | ret->get_info = twitter_get_info; |
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366 | ret->set_my_name = twitter_set_my_name; |
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367 | ret->add_buddy = twitter_add_buddy; |
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368 | ret->remove_buddy = twitter_remove_buddy; |
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369 | ret->chat_msg = twitter_chat_msg; |
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370 | ret->chat_invite = twitter_chat_invite; |
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371 | ret->chat_leave = twitter_chat_leave; |
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372 | ret->chat_with = twitter_chat_with; |
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373 | ret->keepalive = twitter_keepalive; |
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374 | ret->add_permit = twitter_add_permit; |
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375 | ret->rem_permit = twitter_rem_permit; |
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376 | ret->add_deny = twitter_add_deny; |
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377 | ret->rem_deny = twitter_rem_deny; |
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378 | ret->send_typing = twitter_send_typing; |
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379 | ret->handle_cmp = g_strcasecmp; |
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380 | |
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381 | register_protocol(ret); |
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382 | |
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383 | // Initialise the twitter_connections GSList. |
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384 | twitter_connections = NULL; |
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385 | } |
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386 | |
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