2 Copyright (C) 2005 Georgia Public Library Service
3 Bill Erickson <billserickson@gmail.com>
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
16 #include "osrf_chat.h"
21 int __osrfChatXMLErrorOcurred = 0;
22 int __osrfChatClientSentDisconnect = 0;
24 /* shorter version of strcmp */
25 static int eq(const char* a, const char* b) { return (a && b && !strcmp(a,b)); }
26 //#define eq(a,b) ((a && b && !strcmp(a,b)) ? 1 : 0)
28 /* gnarly debug function */
29 static void chatdbg( osrfChatServer* server ) {
32 return; /* heavy logging, should only be used in heavy debug mode */
34 growing_buffer* buf = buffer_init(256);
36 buffer_add(buf, "---------------------------------------------------------------------\n");
41 "Named nodes in hash: %lu\n"
45 "-------------------------------------------------------\n",
46 osrfListGetCount(server->nodeList), osrfHashGetCount(server->nodeHash),
47 server->domain, server->port, server->s2sport );
49 osrfListIterator* itr = osrfNewListIterator(server->nodeList);
52 while( (node = osrfListIteratorNext(itr)) ) {
66 "-------------------------------------------------------\n",
67 node->sockid, node->remote, node->state, node->xmlstate, node->inparse,
68 node->to, node->resource, node->username, node->domain, node->authkey, node->type );
71 osrfLogDebug( OSRF_LOG_MARK, "DEBUG:\n%s", buf->buf );
73 osrfListIteratorFree(itr);
76 osrfChatServer* osrfNewChatServer( char* domain, char* secret, int s2sport ) {
77 if(!(domain && secret)) return NULL;
79 osrfChatServer* server = safe_malloc(sizeof(osrfChatServer));
81 server->nodeHash = osrfNewHash();
82 server->nodeList = osrfNewList();
83 server->deadNodes = osrfNewList();
84 server->nodeList->freeItem = &osrfChatNodeFree;
85 server->domain = strdup(domain);
86 server->s2sport = s2sport;
88 server->mgr = safe_malloc(sizeof(socket_manager));
89 server->mgr->data_received = &osrfChatHandleData;
90 server->mgr->blob = server;
91 server->mgr->on_socket_closed = &osrfChatSocketClosed;
93 if(secret) server->secret = strdup(secret);
97 void osrfChatCleanupClients( osrfChatServer* server ) {
99 osrfListFree(server->deadNodes);
100 server->deadNodes = osrfNewList();
105 osrfChatNode* osrfNewChatNode( int sockid, char* domain ) {
106 if(sockid < 1 || !domain) return NULL;
107 osrfChatNode* node = safe_malloc(sizeof(osrfChatNode));
108 node->state = OSRF_CHAT_STATE_NONE;
109 node->msgs = NULL; /* only s2s nodes cache messages */
110 node->parserCtx = xmlCreatePushParserCtxt(osrfChatSaxHandler, node, "", 0, NULL);
111 node->msgDoc = xmlNewDoc(BAD_CAST "1.0");
112 node->domain = strdup(domain);
113 xmlKeepBlanksDefault(0);
114 node->authkey = NULL;
115 node->username = NULL;
116 node->resource = NULL;
123 osrfChatNode* osrfNewChatS2SNode( char* domain, char* remote ) {
124 if(!(domain && remote)) return NULL;
125 osrfChatNode* n = osrfNewChatNode( 1, domain );
126 n->state = OSRF_CHAT_STATE_S2S_CHALLENGE;
128 n->remote = strdup(remote);
129 n->msgs = osrfNewList();
130 n->msgs->freeItem = &osrfChatS2SMessageFree;
135 void osrfChatS2SMessageFree(void* n) { free(n); }
137 void osrfChatNodeFree( void* node ) {
139 osrfChatNode* n = (osrfChatNode*) node;
141 /* we can't free messages that are mid-parse because the
142 we can't free the parser context */
145 osrfListPush(n->parent->deadNodes, n);
156 osrfListFree(n->msgs);
159 xmlFreeDoc(n->parserCtx->myDoc);
160 xmlFreeParserCtxt(n->parserCtx);
163 xmlFreeDoc(n->msgDoc);
169 int osrfChatServerConnect( osrfChatServer* cs, int port, int s2sport, char* listenAddr ) {
170 if(!(cs && port && listenAddr)) return -1;
172 cs->s2sport = s2sport;
173 if( socket_open_tcp_server(cs->mgr, port, listenAddr ) < 0 )
175 if( socket_open_tcp_server(cs->mgr, s2sport, listenAddr ) < 0 )
181 int osrfChatServerWait( osrfChatServer* server ) {
182 if(!server) return -1;
184 if(socket_wait_all(server->mgr, -1) < 0)
185 osrfLogWarning( OSRF_LOG_MARK, "jserver_wait(): socket_wait_all() returned error");
191 void osrfChatServerFree(osrfChatServer* server ) {
193 osrfHashFree(server->nodeHash);
194 osrfListFree(server->nodeList);
196 free(server->secret);
200 void osrfChatHandleData( void* cs,
201 socket_manager* mgr, int sockid, char* data, int parent_id ) {
203 if(!(cs && mgr && sockid && data)) return;
205 osrfChatServer* server = (osrfChatServer*) cs;
207 osrfChatNode* node = osrfListGetIndex( server->nodeList, sockid );
210 osrfLogDebug( OSRF_LOG_MARK, "Found node for sockid %d with state %d", sockid, node->state);
213 osrfLogDebug( OSRF_LOG_MARK, "Adding new connection for sockid %d", sockid );
214 node = osrfChatAddNode( server, sockid );
218 if( (osrfChatPushData( server, node, data ) == -1) ) {
219 osrfLogError( OSRF_LOG_MARK,
220 "Node at socket %d with remote address %s and destination %s, "
221 "received bad XML [%s], disconnecting...", sockid, node->remote, node->to, data );
222 osrfChatSendRaw( node, OSRF_CHAT_PARSE_ERROR );
223 osrfChatRemoveNode( server, node );
227 osrfChatCleanupClients(server); /* clean up old dead clients */
231 void osrfChatSocketClosed( void* blob, int sockid ) {
233 osrfChatServer* server = (osrfChatServer*) blob;
234 osrfChatNode* node = osrfListGetIndex(server->nodeList, sockid);
235 osrfChatRemoveNode( server, node );
238 osrfChatNode* osrfChatAddNode( osrfChatServer* server, int sockid ) {
239 if(!(server && sockid)) return NULL;
240 osrfChatNode* node = osrfNewChatNode(sockid, server->domain);
241 node->parent = server;
242 node->sockid = sockid;
243 osrfListSet( server->nodeList, node, sockid );
247 void osrfChatRemoveNode( osrfChatServer* server, osrfChatNode* node ) {
248 if(!(server && node)) return;
249 socket_disconnect(server->mgr, node->sockid);
251 osrfHashRemove( server->nodeHash, node->remote );
252 osrfListRemove( server->nodeList, node->sockid ); /* this will free it */
255 int osrfChatSendRaw( osrfChatNode* node, char* msgXML ) {
256 if(!(node && msgXML)) return -1;
257 /* wait at most 3 second for this client to take our data */
258 return socket_send_timeout( node->sockid, msgXML, 3000000 );
261 void osrfChatNodeFinish( osrfChatServer* server, osrfChatNode* node ) {
262 if(!(server && node)) return;
263 osrfChatSendRaw( node, "</stream:stream>");
264 osrfChatRemoveNode( server, node );
268 int osrfChatSend( osrfChatServer* cs, osrfChatNode* node, char* toAddr, char* fromAddr, char* msgXML ) {
269 if(!(cs && node && toAddr && msgXML)) return -1;
271 int l = strlen(toAddr);
274 jid_get_domain( toAddr, dombuf, l );
276 if( eq( dombuf, cs->domain ) ) { /* this is to a user we host */
278 osrfLogInfo( OSRF_LOG_MARK, "Sending message on local connection\nfrom: %s\nto: %s", fromAddr, toAddr );
279 osrfChatNode* tonode = osrfHashGet(cs->nodeHash, toAddr);
282 /* if we can't send to the recipient (recipient is gone or too busy,
283 * we drop the recipient and inform the sender that the recipient
285 if( osrfChatSendRaw( tonode, msgXML ) < 0 ) {
287 osrfChatRemoveNode( cs, tonode );
288 char* xml = va_list_to_string( OSRF_CHAT_NO_RECIPIENT, toAddr, fromAddr );
290 osrfLogError( OSRF_LOG_MARK, "Node failed to function. "
291 "Responding to caller with error: %s", toAddr);
294 if( osrfChatSendRaw( node, xml ) < 0 ) {
295 osrfLogError(OSRF_LOG_MARK, "Sending node is now gone..removing");
296 osrfChatRemoveNode( cs, node );
303 /* send an error message saying we don't have this connection */
304 osrfLogInfo( OSRF_LOG_MARK, "We have no connection for %s", toAddr);
305 char* xml = va_list_to_string( OSRF_CHAT_NO_RECIPIENT, toAddr, fromAddr );
306 if( osrfChatSendRaw( node, xml ) < 0 )
307 osrfChatRemoveNode( cs, node );
313 osrfChatNode* tonode = osrfHashGet(cs->nodeHash, dombuf);
315 if( tonode->state == OSRF_CHAT_STATE_CONNECTED ) {
316 osrfLogDebug( OSRF_LOG_MARK, "Routing message to server %s", dombuf);
318 if( osrfChatSendRaw( tonode, msgXML ) < 0 ) {
319 osrfLogError( OSRF_LOG_MARK, "Node failed to function: %s", toAddr);
320 char* xml = va_list_to_string( OSRF_CHAT_NO_RECIPIENT, toAddr, fromAddr );
321 if( osrfChatSendRaw( node, xml ) < 0 )
322 osrfChatRemoveNode( cs, node );
324 osrfChatRemoveNode( cs, tonode );
328 osrfLogInfo( OSRF_LOG_MARK, "Received s2s message and we're still trying to connect...caching");
329 osrfListPush( tonode->msgs, strdup(msgXML) );
334 if( osrfChatInitS2S( cs, dombuf, toAddr, msgXML ) != 0 ) {
335 osrfLogWarning( OSRF_LOG_MARK, "We are unable to connect to remote server %s for recipient %s", dombuf, toAddr);
336 char* xml = va_list_to_string( OSRF_CHAT_NO_RECIPIENT, toAddr, fromAddr );
337 osrfChatSendRaw( node, xml );
348 void osrfChatCacheS2SMessage( char* toAddr, char* msgXML, osrfChatNode* snode ) {
349 if(!(toAddr && msgXML)) return;
350 osrfChatS2SMessage* msg = safe_malloc(sizeof(osrfChatS2SMessage));
351 msg->toAddr = strdup(toAddr);
352 msg->msgXML = strdup(msgXML);
353 osrfLogInfo( OSRF_LOG_MARK, "Pushing client message onto s2s queue waiting for connect... ");
354 osrfListPush( snode->msgs, msgXML );
359 int osrfChatInitS2S( osrfChatServer* cs, char* remote, char* toAddr, char* msgXML ) {
360 if(!(cs && remote && toAddr && msgXML)) return -1;
362 osrfLogInfo( OSRF_LOG_MARK, "Initing server2server connection to domain %s", remote );
363 osrfChatNode* snode = osrfNewChatS2SNode( cs->domain, remote );
366 /* try to connect to the remote site */
367 snode->sockid = socket_open_tcp_client(cs->mgr, cs->s2sport, remote);
368 if(snode->sockid < 1) {
369 osrfLogWarning( OSRF_LOG_MARK, "Unable to connect to remote server at %s", remote );
373 /* store the message we were supposed to deliver until we're fully connected */
374 //osrfChatCacheS2SMessage( toAddr, msgXML, snode );
375 osrfListPush( snode->msgs, strdup(msgXML) );
376 osrfHashSet(cs->nodeHash, snode, remote );
377 osrfListSet(cs->nodeList, snode, snode->sockid );
379 /* send the initial s2s request */
380 osrfChatSendRaw( snode, OSRF_CHAT_S2S_INIT );
382 osrfLogDebug( OSRF_LOG_MARK, "Added new s2s node...");
389 /* commence SAX handling code */
391 int osrfChatPushData( osrfChatServer* server, osrfChatNode* node, char* data ) {
392 if(!(node && data)) return -1;
396 osrfLogDebug( OSRF_LOG_MARK, "pushing data into xml parser for node %d with state %d:\n%s",
397 node->sockid, node->state, data);
399 xmlParseChunk(node->parserCtx, data, strlen(data), 0);
402 if(__osrfChatXMLErrorOcurred) {
403 __osrfChatXMLErrorOcurred = 0;
407 /* we can't do cleanup of the XML handlers while in the middle of a
408 data push, so set flags in the data push and doe the cleanup here */
410 if(__osrfChatClientSentDisconnect) {
411 __osrfChatClientSentDisconnect = 0;
412 osrfChatNodeFinish( server, node );
420 void osrfChatStartStream( void* blob ) {
421 osrfLogDebug( OSRF_LOG_MARK, "Starting new client stream...");
425 void osrfChatStartElement( void* blob, const xmlChar *name, const xmlChar **atts ) {
426 if(!(blob && name)) return;
427 osrfChatNode* node = (osrfChatNode*) blob;
430 char* nm = (char*) name;
432 osrfLogDebug( OSRF_LOG_MARK, "Starting element %s with namespace %s and node state %d",
433 nm, xmlSaxAttr(atts, "xmlns"), node->state );
435 switch( node->state ) {
437 case OSRF_CHAT_STATE_NONE:
438 status = osrfChatHandleNewConnection( node, nm, atts );
439 osrfLogDebug( OSRF_LOG_MARK, "After NewConnection we have state %d", node->state);
442 case OSRF_CHAT_STATE_CONNECTING:
443 status = osrfChatHandleConnecting( node, nm, atts );
446 case OSRF_CHAT_STATE_CONNECTED:
447 status = osrfChatHandleConnected( node, nm, atts );
450 case OSRF_CHAT_STATE_S2S_CHALLENGE:
451 status = osrfChatHandleS2SChallenge( node, nm, atts );
454 case OSRF_CHAT_STATE_S2S_RESPONSE: /* server waiting for client response to challenge */
455 if(eq(nm, "db:result")) {
456 char* remote = xmlSaxAttr(atts, "from");
457 if(remote) node->remote = strdup(remote); /* copy off the client's id */
459 node->xmlstate |= OSRF_CHAT_STATE_INS2SRESULT;
463 case OSRF_CHAT_STATE_S2S_VERIFY: /* client : waiting for server verify message */
464 if(eq(nm, "db:verify")) {
465 char* id = xmlSaxAttr( atts, "id" );
467 char* xml = va_list_to_string( OSRF_CHAT_S2S_VERIFY_RESPONSE,
468 node->remote, node->domain, id );
469 osrfChatSendRaw( node, xml );
471 node->state = OSRF_CHAT_STATE_S2S_VERIFY_FINAL;
477 case OSRF_CHAT_STATE_S2S_VERIFY_RESPONSE: /* server waiting for client verify response */
478 case OSRF_CHAT_STATE_S2S_VERIFY_FINAL: /* client waitig for final verify */
479 status = osrfChatHandleS2SConnected( node, nm, atts );
485 osrfChatParseError( node, "We don't know how to handle the XML data received" );
488 #define CHAT_CHECK_VARS(x,y,z) if(!(x && y)) return -1; if(z) osrfLogDebug( OSRF_LOG_MARK, z);
492 int osrfChatHandleS2SConnected( osrfChatNode* node, const char* name, const xmlChar**atts ) {
493 CHAT_CHECK_VARS(node, name, "osrfChatHandleS2SConnected" );
497 if(eq(name,"db:verify")) { /* server receives verify from client */
498 char* xml = va_list_to_string(OSRF_CHAT_S2S_VERIFY_FINAL, node->domain, node->remote );
499 osrfChatSendRaw(node, xml );
504 if(eq(name, "db:result")) {
505 /* send all the messages that we have queued for this server */
506 node->state = OSRF_CHAT_STATE_CONNECTED;
507 osrfListIterator* itr = osrfNewListIterator(node->msgs);
510 while( (xml = (char*) osrfListIteratorNext(itr)) ) {
511 xmlDocPtr doc = xmlParseMemory(xml, strlen(xml));
513 char* from = (char*) xmlGetProp(xmlDocGetRootElement(doc), BAD_CAST "from");
514 char* to = (char*) xmlGetProp(xmlDocGetRootElement(doc), BAD_CAST "to");
515 osrfChatSend( node->parent, node, to, from, xml );
516 osrfLogDebug( OSRF_LOG_MARK, "Sending cached message from %s to %s", from, to);
517 xmlFree(to); xmlFree(from);
522 osrfListIteratorFree(itr);
523 osrfListFree(node->msgs);
529 osrfLogInfo( OSRF_LOG_MARK, "Successfully made S2S connection to %s", node->remote );
530 node->state = OSRF_CHAT_STATE_CONNECTED;
538 /** check the namespace of the stream message to see if it's a server or client connection */
539 int osrfChatHandleNewConnection( osrfChatNode* node, const char* name, const xmlChar** atts ) {
540 CHAT_CHECK_VARS(node, name, "osrfChatHandleNewConnection()");
542 if(!eq(name, "stream:stream")) return -1;
544 node->authkey = osrfChatMkAuthKey();
545 char* ns = xmlSaxAttr(atts, "xmlns");
548 if(eq(ns, "jabber:client")) { /* client connection */
550 char* domain = xmlSaxAttr( atts, "to" );
551 if(!domain) return -1;
553 if(!eq(domain, node->domain)) {
554 osrfLogWarning( OSRF_LOG_MARK,
555 "Client attempting to connect to invalid domain %s. Our domain is %s", domain, node->domain);
559 char* buf = va_list_to_string( OSRF_CHAT_START_STREAM, domain, node->authkey );
560 node->state = OSRF_CHAT_STATE_CONNECTING;
562 osrfLogDebug( OSRF_LOG_MARK, "Server node %d setting state to OSRF_CHAT_STATE_CONNECTING[%d]",
563 node->sockid, node->state );
565 osrfLogDebug( OSRF_LOG_MARK, "Server responding to connect message with\n%s\n", buf );
566 osrfChatSendRaw( node, buf );
571 /* server to server init */
572 if(eq(ns, "jabber:server")) { /* client connection */
573 osrfLogInfo( OSRF_LOG_MARK, "We received a new server 2 server connection, generating auth key...");
574 char* xml = va_list_to_string( OSRF_CHAT_S2S_CHALLENGE, node->authkey );
575 osrfChatSendRaw( node, xml );
577 node->state = OSRF_CHAT_STATE_S2S_RESPONSE; /* the next message should be the response */
587 char* osrfChatMkAuthKey() {
590 snprintf(keybuf, 111, "%d%d%s", (int) time(NULL), getpid(), getenv("HOSTNAME"));
591 return strdup(shahash(keybuf));
594 int osrfChatHandleConnecting( osrfChatNode* node, const char* name, const xmlChar** atts ) {
595 CHAT_CHECK_VARS(node, name, "osrfChatHandleConnecting()");
596 osrfLogDebug( OSRF_LOG_MARK, "Handling connect node %s", name );
598 if(eq(name, "iq")) node->xmlstate |= OSRF_CHAT_STATE_INIQ;
599 else if(eq(name,"username")) node->xmlstate |= OSRF_CHAT_STATE_INUSERNAME;
600 else if(eq(name,"resource")) node->xmlstate |= OSRF_CHAT_STATE_INRESOURCE;
604 int osrfChatHandleConnected( osrfChatNode* node, const char* name, const xmlChar** atts ) {
605 CHAT_CHECK_VARS(node, name, "osrfChatHandleConnected()");
607 if(eq(name,"message")) {
609 /* drop the old message and start with a new one */
610 xmlNodePtr root = xmlNewNode(NULL, name);
611 xmlAddAttrs(root, atts);
612 xmlNodePtr oldRoot = xmlDocSetRootElement(node->msgDoc, root);
615 char* to = xmlSaxAttr(atts, "to");
618 node->to = strdup(to);
619 if(oldRoot) xmlFreeNode(oldRoot);
620 node->xmlstate = OSRF_CHAT_STATE_INMESSAGE;
624 /* all non "message" nodes are simply added to the message */
625 xmlNodePtr nodep = xmlNewNode(NULL, name);
626 xmlAddAttrs(nodep, atts);
627 xmlAddChild(xmlDocGetRootElement(node->msgDoc), nodep);
633 /* takes s2s secret, hashdomain, and the s2s auth token */
634 static char* osrfChatGenerateS2SKey( char* secret, char* hashdomain, char* authtoken ) {
635 if(!(secret && hashdomain && authtoken)) return NULL;
636 osrfLogInfo( OSRF_LOG_MARK, "Generating s2s key with auth token: %s", authtoken );
637 char* a = shahash(secret);
638 osrfLogDebug( OSRF_LOG_MARK, "S2S secret hash: %s", a);
639 char* b = va_list_to_string("%s%s", a, hashdomain);
640 char* c = shahash(b);
641 osrfLogDebug( OSRF_LOG_MARK, "S2S intermediate hash: %s", c);
642 char* d = va_list_to_string("%s%s", c, authtoken);
643 char* e = strdup(shahash(d));
648 int osrfChatHandleS2SChallenge( osrfChatNode* node, const char* name, const xmlChar** atts ) {
649 CHAT_CHECK_VARS(node, name, "osrfChatHandleS2SChallenge()");
651 /* here we respond to the stream challenge */
652 if(eq(name, "stream:stream")) {
653 char* id = xmlSaxAttr(atts, "id");
655 /* we use our domain in the s2s challenge hash */
656 char* d = osrfChatGenerateS2SKey(node->parent->secret, node->domain, id );
657 char* e = va_list_to_string(OSRF_CHAT_S2S_RESPONSE, node->remote, node->domain, d );
658 osrfLogInfo( OSRF_LOG_MARK, "Answering s2s challenge with key: %s", e );
659 osrfChatSendRaw( node, e );
661 node->state = OSRF_CHAT_STATE_S2S_VERIFY;
670 int osrfChatHandleS2SResponse( osrfChatNode* node, const char* name, const xmlChar** atts ) {
671 CHAT_CHECK_VARS(node, name, "osrfChatHandleS2SResponse()");
673 if(eq(name, "db:result")) {
674 node->xmlstate |= OSRF_CHAT_STATE_INS2SRESULT;
684 void osrfChatEndElement( void* blob, const xmlChar* name ) {
685 if(!(blob && name)) return;
686 osrfChatNode* node = (osrfChatNode*) blob;
688 char* nm = (char*) name;
690 if(eq(nm,"stream:stream")) {
691 osrfChatNodeFinish( node->parent, node );
695 if( node->state == OSRF_CHAT_STATE_CONNECTED ) {
696 if(eq(nm, "message")) {
698 xmlNodePtr msg = xmlDocGetRootElement(node->msgDoc);
699 if(msg && node->type == 0)
700 xmlSetProp(msg, BAD_CAST "from", BAD_CAST node->remote );
701 char* string = xmlDocToString(node->msgDoc, 0 );
703 char* from = (char*) xmlGetProp(msg, BAD_CAST "from");
704 osrfLogDebug( OSRF_LOG_MARK, "Routing message to %s\n%s\n", node->to, from, string );
705 osrfChatSend( node->parent, node, node->to, from, string );
711 if( node->state == OSRF_CHAT_STATE_CONNECTING ) {
712 if( node->xmlstate & OSRF_CHAT_STATE_INIQ ) {
715 node->xmlstate &= ~OSRF_CHAT_STATE_INIQ;
716 node->remote = va_list_to_string(
717 "%s@%s/%s", node->username, node->domain, node->resource );
719 osrfLogInfo( OSRF_LOG_MARK, "%s successfully logged in", node->remote );
721 osrfLogDebug( OSRF_LOG_MARK, "Setting remote address to %s", node->remote );
722 osrfChatSendRaw( node, OSRF_CHAT_LOGIN_OK );
723 if(osrfHashGet( node->parent->nodeHash, node->remote ) ) {
724 osrfLogWarning( OSRF_LOG_MARK, "New node replaces existing node for remote id %s", node->remote);
725 osrfHashRemove(node->parent->nodeHash, node->remote);
727 osrfHashSet( node->parent->nodeHash, node, node->remote );
728 node->state = OSRF_CHAT_STATE_CONNECTED;
735 void osrfChatHandleCharacter( void* blob, const xmlChar *ch, int len) {
736 if(!(blob && ch && len)) return;
737 osrfChatNode* node = (osrfChatNode*) blob;
740 osrfLogDebug( OSRF_LOG_MARK, "Char Handler: state %d, xmlstate %d, chardata %s",
741 node->state, node->xmlstate, (char*) ch );
744 if( node->state == OSRF_CHAT_STATE_CONNECTING ) {
745 if( node->xmlstate & OSRF_CHAT_STATE_INIQ ) {
747 if( node->xmlstate & OSRF_CHAT_STATE_INUSERNAME ) {
748 free(node->username);
749 node->username = strndup((char*) ch, len);
750 node->xmlstate &= ~OSRF_CHAT_STATE_INUSERNAME;
753 if( node->xmlstate & OSRF_CHAT_STATE_INRESOURCE ) {
754 free(node->resource);
755 node->resource = strndup((char*) ch, len);
756 node->xmlstate &= ~OSRF_CHAT_STATE_INRESOURCE;
763 if( node->state == OSRF_CHAT_STATE_CONNECTED ) {
764 xmlNodePtr last = xmlGetLastChild(xmlDocGetRootElement(node->msgDoc));
765 xmlNodePtr txt = xmlNewTextLen(ch, len);
766 xmlAddChild(last, txt);
770 if( node->state == OSRF_CHAT_STATE_S2S_RESPONSE &&
771 (node->xmlstate & OSRF_CHAT_STATE_INS2SRESULT) ) {
773 char* key = strndup((char*) ch, len);
774 osrfLogDebug( OSRF_LOG_MARK, "Got s2s key from %s : %s", node->remote, key );
775 char* e = osrfChatGenerateS2SKey(node->parent->secret, node->remote, node->authkey );
776 osrfLogInfo( OSRF_LOG_MARK, "\nReceived s2s key from server: %s\nKey should be: %s", key, e );
779 char* msg = va_list_to_string(OSRF_CHAT_S2S_VERIFY_REQUEST,
780 node->authkey, node->domain, node->remote, e );
781 osrfChatSendRaw(node, msg );
783 node->state = OSRF_CHAT_STATE_S2S_VERIFY_RESPONSE;
787 osrfLogWarning( OSRF_LOG_MARK, "Server2Server keys do not match!");
790 /* do the hash dance again */
793 /* XXX free 'e' and 'key' ?? */
798 void osrfChatParseError( void* blob, const char* msg, ... ) {
800 __osrfChatXMLErrorOcurred = 1;