[2c2df7d] | 1 | /***************************************************************************\ |
---|
| 2 | * * |
---|
| 3 | * BitlBee - An IRC to IM gateway * |
---|
| 4 | * Jabber module - SI packets * |
---|
| 5 | * * |
---|
| 6 | * Copyright 2007 Uli Meis <a.sporto+bee@gmail.com> * |
---|
| 7 | * * |
---|
| 8 | * This program is free software; you can redistribute it and/or modify * |
---|
| 9 | * it under the terms of the GNU General Public License as published by * |
---|
| 10 | * the Free Software Foundation; either version 2 of the License, or * |
---|
| 11 | * (at your option) any later version. * |
---|
| 12 | * * |
---|
| 13 | * This program is distributed in the hope that it will be useful, * |
---|
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
---|
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
---|
| 16 | * GNU General Public License for more details. * |
---|
| 17 | * * |
---|
| 18 | * You should have received a copy of the GNU General Public License along * |
---|
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., * |
---|
| 20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
---|
| 21 | * * |
---|
| 22 | \***************************************************************************/ |
---|
| 23 | |
---|
| 24 | #include "jabber.h" |
---|
| 25 | #include "sha1.h" |
---|
| 26 | |
---|
| 27 | void jabber_si_answer_request( file_transfer_t *ft ); |
---|
[2ff2076] | 28 | int jabber_si_send_request(struct im_connection *ic, char *who, struct jabber_transfer *tf ); |
---|
[2c2df7d] | 29 | |
---|
[2ff2076] | 30 | /* file_transfer free() callback */ |
---|
[2c2df7d] | 31 | void jabber_si_free_transfer( file_transfer_t *ft) |
---|
| 32 | { |
---|
| 33 | struct jabber_transfer *tf = ft->data; |
---|
| 34 | struct jabber_data *jd = tf->ic->proto_data; |
---|
| 35 | |
---|
| 36 | if ( tf->watch_in ) |
---|
[8256ad5] | 37 | { |
---|
[2c2df7d] | 38 | b_event_remove( tf->watch_in ); |
---|
[8256ad5] | 39 | tf->watch_in = 0; |
---|
| 40 | } |
---|
[2c2df7d] | 41 | |
---|
| 42 | jd->filetransfers = g_slist_remove( jd->filetransfers, tf ); |
---|
| 43 | |
---|
[8a90001] | 44 | if( tf->fd != -1 ) |
---|
[2c2df7d] | 45 | { |
---|
[b8a491d] | 46 | closesocket( tf->fd ); |
---|
[8a90001] | 47 | tf->fd = -1; |
---|
[2c2df7d] | 48 | } |
---|
| 49 | |
---|
[b5cfc2b] | 50 | if( tf->disco_timeout ) |
---|
| 51 | b_event_remove( tf->disco_timeout ); |
---|
| 52 | |
---|
[2c2df7d] | 53 | g_free( tf->ini_jid ); |
---|
| 54 | g_free( tf->tgt_jid ); |
---|
| 55 | g_free( tf->iq_id ); |
---|
| 56 | g_free( tf->sid ); |
---|
[78d254f1] | 57 | g_free( tf ); |
---|
[2c2df7d] | 58 | } |
---|
| 59 | |
---|
[2ff2076] | 60 | /* file_transfer canceled() callback */ |
---|
[2c2df7d] | 61 | void jabber_si_canceled( file_transfer_t *ft, char *reason ) |
---|
| 62 | { |
---|
| 63 | struct jabber_transfer *tf = ft->data; |
---|
| 64 | struct xt_node *reply, *iqnode; |
---|
| 65 | |
---|
| 66 | if( tf->accepted ) |
---|
| 67 | return; |
---|
| 68 | |
---|
| 69 | iqnode = jabber_make_packet( "iq", "error", tf->ini_jid, NULL ); |
---|
| 70 | xt_add_attr( iqnode, "id", tf->iq_id ); |
---|
| 71 | reply = jabber_make_error_packet( iqnode, "forbidden", "cancel", "403" ); |
---|
| 72 | xt_free_node( iqnode ); |
---|
| 73 | |
---|
| 74 | if( !jabber_write_packet( tf->ic, reply ) ) |
---|
| 75 | imcb_log( tf->ic, "WARNING: Error generating reply to file transfer request" ); |
---|
| 76 | xt_free_node( reply ); |
---|
| 77 | |
---|
| 78 | } |
---|
| 79 | |
---|
[b5cfc2b] | 80 | int jabber_si_check_features( struct jabber_transfer *tf, GSList *features ) { |
---|
| 81 | int foundft = FALSE, foundbt = FALSE, foundsi = FALSE; |
---|
| 82 | |
---|
| 83 | while ( features ) |
---|
| 84 | { |
---|
| 85 | if( !strcmp( features->data, XMLNS_FILETRANSFER ) ) |
---|
| 86 | foundft = TRUE; |
---|
| 87 | if( !strcmp( features->data, XMLNS_BYTESTREAMS ) ) |
---|
| 88 | foundbt = TRUE; |
---|
| 89 | if( !strcmp( features->data, XMLNS_SI ) ) |
---|
| 90 | foundsi = TRUE; |
---|
| 91 | |
---|
| 92 | features = g_slist_next(features); |
---|
| 93 | } |
---|
| 94 | |
---|
| 95 | if( !foundft ) |
---|
[17a6ee9] | 96 | imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature file transfers" ); |
---|
[b5cfc2b] | 97 | else if( !foundbt ) |
---|
[17a6ee9] | 98 | imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature byte streams (required)" ); |
---|
[b5cfc2b] | 99 | else if( !foundsi ) |
---|
[17a6ee9] | 100 | imcb_file_canceled( tf->ic, tf->ft, "Buddy's client doesn't feature stream initiation (required)" ); |
---|
[b5cfc2b] | 101 | |
---|
| 102 | return foundft && foundbt && foundsi; |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | void jabber_si_transfer_start( struct jabber_transfer *tf ) { |
---|
| 106 | |
---|
| 107 | if( !jabber_si_check_features( tf, tf->bud->features ) ) |
---|
| 108 | return; |
---|
| 109 | |
---|
| 110 | /* send the request to our buddy */ |
---|
| 111 | jabber_si_send_request( tf->ic, tf->bud->full_jid, tf ); |
---|
| 112 | |
---|
| 113 | /* and start the receive logic */ |
---|
[17a6ee9] | 114 | imcb_file_recv_start( tf->ic, tf->ft ); |
---|
[b5cfc2b] | 115 | |
---|
| 116 | } |
---|
| 117 | |
---|
| 118 | gboolean jabber_si_waitfor_disco( gpointer data, gint fd, b_input_condition cond ) |
---|
| 119 | { |
---|
| 120 | struct jabber_transfer *tf = data; |
---|
| 121 | struct jabber_data *jd = tf->ic->proto_data; |
---|
| 122 | |
---|
| 123 | tf->disco_timeout_fired++; |
---|
| 124 | |
---|
| 125 | if( tf->bud->features && jd->have_streamhosts==1 ) { |
---|
| 126 | tf->disco_timeout = 0; |
---|
[8a90001] | 127 | jabber_si_transfer_start( tf ); |
---|
[b5cfc2b] | 128 | return FALSE; |
---|
| 129 | } |
---|
| 130 | |
---|
| 131 | /* 8 seconds should be enough for server and buddy to respond */ |
---|
| 132 | if ( tf->disco_timeout_fired < 16 ) |
---|
| 133 | return TRUE; |
---|
| 134 | |
---|
| 135 | if( !tf->bud->features && jd->have_streamhosts!=1 ) |
---|
[8a90001] | 136 | imcb_log( tf->ic, "Couldn't get buddy's features nor discover all services of the server" ); |
---|
[b5cfc2b] | 137 | else if( !tf->bud->features ) |
---|
[8a90001] | 138 | imcb_log( tf->ic, "Couldn't get buddy's features" ); |
---|
[b5cfc2b] | 139 | else |
---|
[8a90001] | 140 | imcb_log( tf->ic, "Couldn't discover some of the server's services" ); |
---|
[b5cfc2b] | 141 | |
---|
| 142 | tf->disco_timeout = 0; |
---|
[8a90001] | 143 | jabber_si_transfer_start( tf ); |
---|
[b5cfc2b] | 144 | return FALSE; |
---|
| 145 | } |
---|
| 146 | |
---|
[2ff2076] | 147 | void jabber_si_transfer_request( struct im_connection *ic, file_transfer_t *ft, char *who ) |
---|
| 148 | { |
---|
| 149 | struct jabber_transfer *tf; |
---|
| 150 | struct jabber_data *jd = ic->proto_data; |
---|
[b5cfc2b] | 151 | struct jabber_buddy *bud; |
---|
| 152 | char *server = jd->server, *s; |
---|
| 153 | |
---|
| 154 | if( ( s = strchr( who, '=' ) ) && jabber_chat_by_jid( ic, s + 1 ) ) |
---|
| 155 | bud = jabber_buddy_by_ext_jid( ic, who, 0 ); |
---|
| 156 | else |
---|
| 157 | bud = jabber_buddy_by_jid( ic, who, 0 ); |
---|
[2ff2076] | 158 | |
---|
[b5cfc2b] | 159 | if( bud == NULL ) |
---|
| 160 | { |
---|
[17a6ee9] | 161 | imcb_file_canceled( ic, ft, "Couldn't find buddy (BUG?)" ); |
---|
[b5cfc2b] | 162 | return; |
---|
| 163 | } |
---|
[b8a491d] | 164 | |
---|
[dce3903] | 165 | imcb_log( ic, "Trying to send %s(%zd bytes) to %s", ft->file_name, ft->file_size, who ); |
---|
[2ff2076] | 166 | |
---|
| 167 | tf = g_new0( struct jabber_transfer, 1 ); |
---|
| 168 | |
---|
| 169 | tf->ic = ic; |
---|
| 170 | tf->ft = ft; |
---|
[8a90001] | 171 | tf->fd = -1; |
---|
[2ff2076] | 172 | tf->ft->data = tf; |
---|
| 173 | tf->ft->free = jabber_si_free_transfer; |
---|
[b5cfc2b] | 174 | tf->bud = bud; |
---|
[2ff2076] | 175 | ft->write = jabber_bs_send_write; |
---|
| 176 | |
---|
| 177 | jd->filetransfers = g_slist_prepend( jd->filetransfers, tf ); |
---|
| 178 | |
---|
[b5cfc2b] | 179 | /* query buddy's features and server's streaming proxies if neccessary */ |
---|
[dc0ba9c] | 180 | |
---|
[b5cfc2b] | 181 | if( !tf->bud->features ) |
---|
| 182 | jabber_iq_query_features( ic, bud->full_jid ); |
---|
[dc0ba9c] | 183 | |
---|
[8a90001] | 184 | /* If <auto> is not set don't check for proxies */ |
---|
| 185 | if( ( jd->have_streamhosts!=1 ) && ( jd->streamhosts==NULL ) && |
---|
| 186 | ( strstr( set_getstr( &ic->acc->set, "proxy" ), "<auto>" ) != NULL ) ) { |
---|
[b5cfc2b] | 187 | jd->have_streamhosts = 0; |
---|
| 188 | jabber_iq_query_server( ic, server, XMLNS_DISCO_ITEMS ); |
---|
[8a90001] | 189 | } else if ( jd->streamhosts!=NULL ) |
---|
| 190 | jd->have_streamhosts = 1; |
---|
[2ff2076] | 191 | |
---|
[b5cfc2b] | 192 | /* if we had to do a query, wait for the result. |
---|
| 193 | * Otherwise fire away. */ |
---|
| 194 | if( !tf->bud->features || jd->have_streamhosts!=1 ) |
---|
| 195 | tf->disco_timeout = b_timeout_add( 500, jabber_si_waitfor_disco, tf ); |
---|
| 196 | else |
---|
| 197 | jabber_si_transfer_start( tf ); |
---|
[2ff2076] | 198 | } |
---|
| 199 | |
---|
[2c2df7d] | 200 | /* |
---|
| 201 | * First function that gets called when a file transfer request comes in. |
---|
| 202 | * A lot to parse. |
---|
| 203 | * |
---|
| 204 | * We choose a stream type from the options given by the initiator. |
---|
| 205 | * Then we wait for imcb to call the accept or cancel callbacks. |
---|
| 206 | */ |
---|
| 207 | int jabber_si_handle_request( struct im_connection *ic, struct xt_node *node, struct xt_node *sinode) |
---|
| 208 | { |
---|
| 209 | struct xt_node *c, *d, *reply; |
---|
[78d254f1] | 210 | char *sid, *ini_jid, *tgt_jid, *iq_id, *s, *ext_jid, *size_s; |
---|
[2c2df7d] | 211 | struct jabber_buddy *bud; |
---|
| 212 | int requestok = FALSE; |
---|
[aed152f] | 213 | char *name, *cmp; |
---|
[2c2df7d] | 214 | size_t size; |
---|
| 215 | struct jabber_transfer *tf; |
---|
| 216 | struct jabber_data *jd = ic->proto_data; |
---|
| 217 | file_transfer_t *ft; |
---|
| 218 | |
---|
| 219 | /* All this means we expect something like this: ( I think ) |
---|
| 220 | * <iq from=... to=... id=...> |
---|
| 221 | * <si id=id xmlns=si profile=ft> |
---|
| 222 | * <file xmlns=ft/> |
---|
| 223 | * <feature xmlns=feature> |
---|
| 224 | * <x xmlns=xdata type=submit> |
---|
| 225 | * <field var=stream-method> |
---|
| 226 | * |
---|
| 227 | */ |
---|
| 228 | if( !( ini_jid = xt_find_attr( node, "from" ) ) || |
---|
| 229 | !( tgt_jid = xt_find_attr( node, "to" ) ) || |
---|
| 230 | !( iq_id = xt_find_attr( node, "id" ) ) || |
---|
| 231 | !( sid = xt_find_attr( sinode, "id" ) ) || |
---|
[aed152f] | 232 | !( cmp = xt_find_attr( sinode, "profile" ) ) || |
---|
| 233 | !( 0 == strcmp( cmp, XMLNS_FILETRANSFER ) ) || |
---|
[2c2df7d] | 234 | !( d = xt_find_node( sinode->children, "file" ) ) || |
---|
[aed152f] | 235 | !( cmp = xt_find_attr( d, "xmlns" ) ) || |
---|
| 236 | !( 0 == strcmp( cmp, XMLNS_FILETRANSFER ) ) || |
---|
[2c2df7d] | 237 | !( name = xt_find_attr( d, "name" ) ) || |
---|
[78d254f1] | 238 | !( size_s = xt_find_attr( d, "size" ) ) || |
---|
[b8a491d] | 239 | !( 1 == sscanf( size_s, "%zd", &size ) ) || |
---|
[2c2df7d] | 240 | !( d = xt_find_node( sinode->children, "feature" ) ) || |
---|
[aed152f] | 241 | !( cmp = xt_find_attr( d, "xmlns" ) ) || |
---|
| 242 | !( 0 == strcmp( cmp, XMLNS_FEATURE ) ) || |
---|
[2c2df7d] | 243 | !( d = xt_find_node( d->children, "x" ) ) || |
---|
[aed152f] | 244 | !( cmp = xt_find_attr( d, "xmlns" ) ) || |
---|
| 245 | !( 0 == strcmp( cmp, XMLNS_XDATA ) ) || |
---|
| 246 | !( cmp = xt_find_attr( d, "type" ) ) || |
---|
| 247 | !( 0 == strcmp( cmp, "form" ) ) || |
---|
[2c2df7d] | 248 | !( d = xt_find_node( d->children, "field" ) ) || |
---|
[aed152f] | 249 | !( cmp = xt_find_attr( d, "var" ) ) || |
---|
| 250 | !( 0 == strcmp( cmp, "stream-method" ) ) ) |
---|
[2c2df7d] | 251 | { |
---|
| 252 | imcb_log( ic, "WARNING: Received incomplete Stream Initiation request" ); |
---|
[b8a491d] | 253 | } |
---|
| 254 | else |
---|
[2c2df7d] | 255 | { |
---|
| 256 | /* Check if we support one of the options */ |
---|
| 257 | |
---|
| 258 | c = d->children; |
---|
| 259 | while( ( c = xt_find_node( c, "option" ) ) ) |
---|
[b8a491d] | 260 | if( ( d = xt_find_node( c->children, "value" ) ) && |
---|
[699376f7] | 261 | ( d->text != NULL ) && |
---|
[b8a491d] | 262 | ( strcmp( d->text, XMLNS_BYTESTREAMS ) == 0 ) ) |
---|
[2c2df7d] | 263 | { |
---|
| 264 | requestok = TRUE; |
---|
| 265 | break; |
---|
| 266 | } |
---|
[1bb1e01] | 267 | else |
---|
| 268 | { |
---|
| 269 | c = c->next; |
---|
| 270 | } |
---|
[2ff2076] | 271 | |
---|
| 272 | if ( !requestok ) |
---|
| 273 | imcb_log( ic, "WARNING: Unsupported file transfer request from %s", ini_jid); |
---|
[2c2df7d] | 274 | } |
---|
| 275 | |
---|
[b8a491d] | 276 | if( requestok ) |
---|
[2c2df7d] | 277 | { |
---|
| 278 | /* Figure out who the transfer should come frome... */ |
---|
| 279 | |
---|
[b8a491d] | 280 | ext_jid = ini_jid; |
---|
[2c2df7d] | 281 | if( ( s = strchr( ini_jid, '/' ) ) ) |
---|
| 282 | { |
---|
| 283 | if( ( bud = jabber_buddy_by_jid( ic, ini_jid, GET_BUDDY_EXACT ) ) ) |
---|
| 284 | { |
---|
[1cc0df3] | 285 | bud->last_msg = time( NULL ); |
---|
[2c2df7d] | 286 | ext_jid = bud->ext_jid ? : bud->bare_jid; |
---|
| 287 | } |
---|
| 288 | else |
---|
| 289 | *s = 0; /* We need to generate a bare JID now. */ |
---|
| 290 | } |
---|
| 291 | |
---|
| 292 | if( !( ft = imcb_file_send_start( ic, ext_jid, name, size ) ) ) |
---|
| 293 | { |
---|
| 294 | imcb_log( ic, "WARNING: Error handling transfer request from %s", ini_jid); |
---|
| 295 | requestok = FALSE; |
---|
| 296 | } |
---|
| 297 | |
---|
[92d3044] | 298 | if( s ) |
---|
| 299 | *s = '/'; |
---|
[2ff2076] | 300 | } |
---|
[92d3044] | 301 | |
---|
| 302 | if( !requestok ) |
---|
[2c2df7d] | 303 | { |
---|
| 304 | reply = jabber_make_error_packet( node, "item-not-found", "cancel", NULL ); |
---|
| 305 | if (!jabber_write_packet( ic, reply )) |
---|
| 306 | imcb_log( ic, "WARNING: Error generating reply to file transfer request" ); |
---|
| 307 | xt_free_node( reply ); |
---|
| 308 | return XT_HANDLED; |
---|
| 309 | } |
---|
| 310 | |
---|
| 311 | /* Request is fine. */ |
---|
| 312 | |
---|
| 313 | tf = g_new0( struct jabber_transfer, 1 ); |
---|
| 314 | |
---|
| 315 | tf->ini_jid = g_strdup( ini_jid ); |
---|
| 316 | tf->tgt_jid = g_strdup( tgt_jid ); |
---|
| 317 | tf->iq_id = g_strdup( iq_id ); |
---|
| 318 | tf->sid = g_strdup( sid ); |
---|
| 319 | tf->ic = ic; |
---|
| 320 | tf->ft = ft; |
---|
[8a90001] | 321 | tf->fd = -1; |
---|
[2c2df7d] | 322 | tf->ft->data = tf; |
---|
| 323 | tf->ft->accept = jabber_si_answer_request; |
---|
| 324 | tf->ft->free = jabber_si_free_transfer; |
---|
| 325 | tf->ft->canceled = jabber_si_canceled; |
---|
| 326 | |
---|
| 327 | jd->filetransfers = g_slist_prepend( jd->filetransfers, tf ); |
---|
| 328 | |
---|
| 329 | return XT_HANDLED; |
---|
| 330 | } |
---|
| 331 | |
---|
| 332 | /* |
---|
[dce3903] | 333 | * imc called the accept callback which probably means that the user accepted this file transfer. |
---|
[2c2df7d] | 334 | * We send our response to the initiator. |
---|
| 335 | * In the next step, the initiator will send us a request for the given stream type. |
---|
| 336 | * (currently that can only be a SOCKS5 bytestream) |
---|
| 337 | */ |
---|
| 338 | void jabber_si_answer_request( file_transfer_t *ft ) { |
---|
| 339 | struct jabber_transfer *tf = ft->data; |
---|
| 340 | struct xt_node *node, *sinode, *reply; |
---|
| 341 | |
---|
| 342 | /* generate response, start with the SI tag */ |
---|
| 343 | sinode = xt_new_node( "si", NULL, NULL ); |
---|
| 344 | xt_add_attr( sinode, "xmlns", XMLNS_SI ); |
---|
| 345 | xt_add_attr( sinode, "profile", XMLNS_FILETRANSFER ); |
---|
| 346 | xt_add_attr( sinode, "id", tf->sid ); |
---|
| 347 | |
---|
| 348 | /* now the file tag */ |
---|
| 349 | node = xt_new_node( "file", NULL, NULL ); |
---|
| 350 | xt_add_attr( node, "xmlns", XMLNS_FILETRANSFER ); |
---|
| 351 | |
---|
| 352 | xt_add_child( sinode, node ); |
---|
| 353 | |
---|
| 354 | /* and finally the feature tag */ |
---|
| 355 | node = xt_new_node( "field", NULL, NULL ); |
---|
| 356 | xt_add_attr( node, "var", "stream-method" ); |
---|
| 357 | xt_add_attr( node, "type", "list-single" ); |
---|
| 358 | |
---|
| 359 | /* Currently all we can do. One could also implement in-band (IBB) */ |
---|
| 360 | xt_add_child( node, xt_new_node( "value", XMLNS_BYTESTREAMS, NULL ) ); |
---|
| 361 | |
---|
| 362 | node = xt_new_node( "x", NULL, node ); |
---|
| 363 | xt_add_attr( node, "xmlns", XMLNS_XDATA ); |
---|
| 364 | xt_add_attr( node, "type", "submit" ); |
---|
| 365 | |
---|
| 366 | node = xt_new_node( "feature", NULL, node ); |
---|
| 367 | xt_add_attr( node, "xmlns", XMLNS_FEATURE ); |
---|
| 368 | |
---|
| 369 | xt_add_child( sinode, node ); |
---|
| 370 | |
---|
| 371 | reply = jabber_make_packet( "iq", "result", tf->ini_jid, sinode ); |
---|
| 372 | xt_add_attr( reply, "id", tf->iq_id ); |
---|
| 373 | |
---|
| 374 | if( !jabber_write_packet( tf->ic, reply ) ) |
---|
| 375 | imcb_log( tf->ic, "WARNING: Error generating reply to file transfer request" ); |
---|
| 376 | else |
---|
| 377 | tf->accepted = TRUE; |
---|
| 378 | xt_free_node( reply ); |
---|
| 379 | } |
---|
[2ff2076] | 380 | |
---|
| 381 | static xt_status jabber_si_handle_response(struct im_connection *ic, struct xt_node *node, struct xt_node *orig ) |
---|
| 382 | { |
---|
| 383 | struct xt_node *c, *d; |
---|
[bd599b9] | 384 | char *ini_jid = NULL, *tgt_jid, *iq_id, *cmp; |
---|
[2ff2076] | 385 | GSList *tflist; |
---|
| 386 | struct jabber_transfer *tf=NULL; |
---|
| 387 | struct jabber_data *jd = ic->proto_data; |
---|
| 388 | |
---|
| 389 | if( !( tgt_jid = xt_find_attr( node, "from" ) ) || |
---|
| 390 | !( ini_jid = xt_find_attr( node, "to" ) ) ) |
---|
| 391 | { |
---|
| 392 | imcb_log( ic, "Invalid SI response from=%s to=%s", tgt_jid, ini_jid ); |
---|
| 393 | return XT_HANDLED; |
---|
| 394 | } |
---|
| 395 | |
---|
| 396 | /* All this means we expect something like this: ( I think ) |
---|
[dce3903] | 397 | * <iq from=... to=... id=...> |
---|
[2ff2076] | 398 | * <si xmlns=si> |
---|
[dce3903] | 399 | * [ <file xmlns=ft/> ] <-- not neccessary |
---|
[2ff2076] | 400 | * <feature xmlns=feature> |
---|
| 401 | * <x xmlns=xdata type=submit> |
---|
| 402 | * <field var=stream-method> |
---|
| 403 | * <value> |
---|
| 404 | */ |
---|
| 405 | if( !( tgt_jid = xt_find_attr( node, "from" ) ) || |
---|
| 406 | !( ini_jid = xt_find_attr( node, "to" ) ) || |
---|
[dce3903] | 407 | !( iq_id = xt_find_attr( node, "id" ) ) || |
---|
[2ff2076] | 408 | !( c = xt_find_node( node->children, "si" ) ) || |
---|
[aed152f] | 409 | !( cmp = xt_find_attr( c, "xmlns" ) ) || |
---|
| 410 | !( strcmp( cmp, XMLNS_SI ) == 0 ) || |
---|
[2ff2076] | 411 | !( d = xt_find_node( c->children, "feature" ) ) || |
---|
[aed152f] | 412 | !( cmp = xt_find_attr( d, "xmlns" ) ) || |
---|
| 413 | !( strcmp( cmp, XMLNS_FEATURE ) == 0 ) || |
---|
[2ff2076] | 414 | !( d = xt_find_node( d->children, "x" ) ) || |
---|
[aed152f] | 415 | !( cmp = xt_find_attr( d, "xmlns" ) ) || |
---|
| 416 | !( strcmp( cmp, XMLNS_XDATA ) == 0 ) || |
---|
| 417 | !( cmp = xt_find_attr( d, "type" ) ) || |
---|
| 418 | !( strcmp( cmp, "submit" ) == 0 ) || |
---|
[2ff2076] | 419 | !( d = xt_find_node( d->children, "field" ) ) || |
---|
[aed152f] | 420 | !( cmp = xt_find_attr( d, "var" ) ) || |
---|
| 421 | !( strcmp( cmp, "stream-method" ) == 0 ) || |
---|
[2ff2076] | 422 | !( d = xt_find_node( d->children, "value" ) ) ) |
---|
| 423 | { |
---|
| 424 | imcb_log( ic, "WARNING: Received incomplete Stream Initiation response" ); |
---|
| 425 | return XT_HANDLED; |
---|
| 426 | } |
---|
| 427 | |
---|
| 428 | if( !( strcmp( d->text, XMLNS_BYTESTREAMS ) == 0 ) ) { |
---|
| 429 | /* since we should only have advertised what we can do and the peer should |
---|
| 430 | * only have chosen what we offered, this should never happen */ |
---|
| 431 | imcb_log( ic, "WARNING: Received invalid Stream Initiation response, method %s", d->text ); |
---|
| 432 | |
---|
| 433 | return XT_HANDLED; |
---|
| 434 | } |
---|
| 435 | |
---|
| 436 | /* Let's see if we can find out what this bytestream should be for... */ |
---|
| 437 | |
---|
| 438 | for( tflist = jd->filetransfers ; tflist; tflist = g_slist_next(tflist) ) |
---|
| 439 | { |
---|
| 440 | struct jabber_transfer *tft = tflist->data; |
---|
[dce3903] | 441 | if( ( strcmp( tft->iq_id, iq_id ) == 0 ) ) |
---|
[2ff2076] | 442 | { |
---|
| 443 | tf = tft; |
---|
| 444 | break; |
---|
| 445 | } |
---|
| 446 | } |
---|
| 447 | |
---|
| 448 | if (!tf) |
---|
| 449 | { |
---|
| 450 | imcb_log( ic, "WARNING: Received bytestream request from %s that doesn't match an SI request", ini_jid ); |
---|
| 451 | return XT_HANDLED; |
---|
| 452 | } |
---|
| 453 | |
---|
| 454 | tf->ini_jid = g_strdup( ini_jid ); |
---|
| 455 | tf->tgt_jid = g_strdup( tgt_jid ); |
---|
| 456 | |
---|
[dce3903] | 457 | imcb_log( ic, "File %s: %s accepted the transfer!", tf->ft->file_name, tgt_jid ); |
---|
| 458 | |
---|
[2ff2076] | 459 | jabber_bs_send_start( tf ); |
---|
| 460 | |
---|
| 461 | return XT_HANDLED; |
---|
| 462 | } |
---|
| 463 | |
---|
| 464 | int jabber_si_send_request(struct im_connection *ic, char *who, struct jabber_transfer *tf ) |
---|
| 465 | { |
---|
| 466 | struct xt_node *node, *sinode; |
---|
| 467 | struct jabber_buddy *bud; |
---|
| 468 | |
---|
| 469 | /* who knows how many bits the future holds :) */ |
---|
| 470 | char filesizestr[ 1 + ( int ) ( 0.301029995663981198f * sizeof( size_t ) * 8 ) ]; |
---|
| 471 | |
---|
| 472 | const char *methods[] = |
---|
| 473 | { |
---|
| 474 | XMLNS_BYTESTREAMS, |
---|
| 475 | //XMLNS_IBB, |
---|
| 476 | NULL |
---|
| 477 | }; |
---|
| 478 | const char **m; |
---|
| 479 | char *s; |
---|
| 480 | |
---|
| 481 | /* Maybe we should hash this? */ |
---|
| 482 | tf->sid = g_strdup_printf( "BitlBeeJabberSID%d", tf->ft->local_id ); |
---|
| 483 | |
---|
[793cc25] | 484 | if( ( s = strchr( who, '=' ) ) && jabber_chat_by_jid( ic, s + 1 ) ) |
---|
[2ff2076] | 485 | bud = jabber_buddy_by_ext_jid( ic, who, 0 ); |
---|
| 486 | else |
---|
| 487 | bud = jabber_buddy_by_jid( ic, who, 0 ); |
---|
| 488 | |
---|
| 489 | /* start with the SI tag */ |
---|
| 490 | sinode = xt_new_node( "si", NULL, NULL ); |
---|
| 491 | xt_add_attr( sinode, "xmlns", XMLNS_SI ); |
---|
| 492 | xt_add_attr( sinode, "profile", XMLNS_FILETRANSFER ); |
---|
| 493 | xt_add_attr( sinode, "id", tf->sid ); |
---|
| 494 | |
---|
| 495 | /* if( mimetype ) |
---|
| 496 | xt_add_attr( node, "mime-type", mimetype ); */ |
---|
| 497 | |
---|
| 498 | /* now the file tag */ |
---|
| 499 | /* if( desc ) |
---|
| 500 | node = xt_new_node( "desc", descr, NULL ); */ |
---|
| 501 | node = xt_new_node( "range", NULL, NULL ); |
---|
| 502 | |
---|
| 503 | sprintf( filesizestr, "%zd", tf->ft->file_size ); |
---|
| 504 | node = xt_new_node( "file", NULL, node ); |
---|
| 505 | xt_add_attr( node, "xmlns", XMLNS_FILETRANSFER ); |
---|
| 506 | xt_add_attr( node, "name", tf->ft->file_name ); |
---|
| 507 | xt_add_attr( node, "size", filesizestr ); |
---|
| 508 | /* if (hash) |
---|
| 509 | xt_add_attr( node, "hash", hash ); |
---|
| 510 | if (date) |
---|
| 511 | xt_add_attr( node, "date", date ); */ |
---|
| 512 | |
---|
| 513 | xt_add_child( sinode, node ); |
---|
| 514 | |
---|
| 515 | /* and finally the feature tag */ |
---|
| 516 | node = xt_new_node( "field", NULL, NULL ); |
---|
| 517 | xt_add_attr( node, "var", "stream-method" ); |
---|
| 518 | xt_add_attr( node, "type", "list-single" ); |
---|
| 519 | |
---|
| 520 | for ( m = methods ; *m ; m ++ ) |
---|
| 521 | xt_add_child( node, xt_new_node( "option", NULL, xt_new_node( "value", (char *)*m, NULL ) ) ); |
---|
| 522 | |
---|
| 523 | node = xt_new_node( "x", NULL, node ); |
---|
| 524 | xt_add_attr( node, "xmlns", XMLNS_XDATA ); |
---|
| 525 | xt_add_attr( node, "type", "form" ); |
---|
| 526 | |
---|
| 527 | node = xt_new_node( "feature", NULL, node ); |
---|
| 528 | xt_add_attr( node, "xmlns", XMLNS_FEATURE ); |
---|
| 529 | |
---|
| 530 | xt_add_child( sinode, node ); |
---|
| 531 | |
---|
| 532 | /* and we are there... */ |
---|
| 533 | node = jabber_make_packet( "iq", "set", bud ? bud->full_jid : who, sinode ); |
---|
| 534 | jabber_cache_add( ic, node, jabber_si_handle_response ); |
---|
[dce3903] | 535 | tf->iq_id = g_strdup( xt_find_attr( node, "id" ) ); |
---|
[2ff2076] | 536 | |
---|
| 537 | return jabber_write_packet( ic, node ); |
---|
| 538 | } |
---|