X-Git-Url: https://code.citadel.org/?p=citadel.git;a=blobdiff_plain;f=citadel%2Fmodules%2Fxmpp%2Fserv_xmpp.c;h=d62bcfe468ee99ced792b01fde6632897838bbb7;hp=ea58e3b627dbf9efd6fe658419ed5dfc14f29ee5;hb=2976b35710982e72d499db16d648eee7b2cfaa94;hpb=8904d5e7123ba2f4588f48deed392b1a2d9faa39 diff --git a/citadel/modules/xmpp/serv_xmpp.c b/citadel/modules/xmpp/serv_xmpp.c index ea58e3b62..d62bcfe46 100644 --- a/citadel/modules/xmpp/serv_xmpp.c +++ b/citadel/modules/xmpp/serv_xmpp.c @@ -1,6 +1,6 @@ /* * XMPP (Jabber) service for the Citadel system - * Copyright (c) 2007-2011 by Art Cancro + * Copyright (c) 2007-2018 by Art Cancro and citadel.org * * This program is open source software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -43,7 +42,6 @@ #include #include #include -#define SHOW_ME_VAPPEND_PRINTF #include #include #include "citadel.h" @@ -59,513 +57,419 @@ #include "ctdl_module.h" #include "serv_xmpp.h" +/* uncomment for more verbosity - it will log all received XML tags */ +#define XMPP_XML_DEBUG + /* XML_StopParser is present in expat 2.x */ #if XML_MAJOR_VERSION > 1 #define HAVE_XML_STOPPARSER #endif -HashList *XMPP_StartHandlers = NULL; -HashList *XMPP_EndHandlers = NULL; -HashList *XMPP_SupportedNamespaces = NULL; -HashList *XMPP_NameSpaces = NULL; -HashList *FlatToken = NULL; - -int XMPPSrvDebugEnable = 0; +struct xmpp_event *xmpp_queue = NULL; -void XUnbuffer(void) -{ - citxmpp *Xmpp = XMPP; - cputbuf(Xmpp->OutBuf); - FlushStrBuf(Xmpp->OutBuf); +#ifdef HAVE_XML_STOPPARSER +/* Stop the parser if an entity declaration is hit. */ +static void xmpp_entity_declaration(void *userData, const XML_Char *entityName, + int is_parameter_entity, const XML_Char *value, + int value_length, const XML_Char *base, + const XML_Char *systemId, const XML_Char *publicId, + const XML_Char *notationName +) { + syslog(LOG_WARNING, "xmpp: illegal entity declaration encountered; stopping parser."); + XML_StopParser(XMPP->xp, XML_FALSE); } +#endif -void XPutBody(const char *Str, long Len) -{ - StrBufXMLEscAppend(XMPP->OutBuf, NULL, Str, Len, 0); -} -void XPutProp(const char *Str, long Len) +/* + * Given a source string and a target buffer, returns the string + * properly escaped for insertion into an XML stream. Returns a + * pointer to the target buffer for convenience. + */ +static inline int Ctdl_GetUtf8SequenceLength(const char *CharS, const char *CharE) { - StrEscAppend(XMPP->OutBuf, NULL, Str, 0, 1); -} + int n = 0; + unsigned char test = (1<<7); -void XPut(const char *Str, long Len) -{ - StrBufAppendBufPlain(XMPP->OutBuf, Str, Len, 0); -} + if ((*CharS & 0xC0) != 0xC0) + return 1; -void XPrintf(const char *Format, ...) -{ - va_list arg_ptr; - va_start(arg_ptr, Format); - StrBufVAppendPrintf(XMPP->OutBuf, Format, arg_ptr); - va_end(arg_ptr); + while ((n < 8) && + ((test & ((unsigned char)*CharS)) != 0)) + { + test = test >> 1; + n ++; + } + if ((n > 6) || ((CharE - CharS) < n)) + n = 0; + return n; } -void XPrint(const char *Token, long tlen, - int Flags, - ...) - +char *xmlesc(char *buf, char *str, int bufsiz) { - int BodySeen = 0; - int ArgType; - int Finished = 0; - char *PName; - long PLen; - char *Val; - long VLen; - va_list arg_ptr; - - XPUT("<"); - XPut(Token, tlen); - - va_start(arg_ptr, Flags); - while (!Finished) - { - ArgType = va_arg(arg_ptr, int); - switch (ArgType) - { - case TYPE_STR: - PName = va_arg(arg_ptr, char*); - PLen = va_arg(arg_ptr, long); - Val = va_arg(arg_ptr, char*); - VLen = va_arg(arg_ptr, long); - XPUT(" "); - XPut(PName, PLen); - XPUT("=\""); - XPutProp(Val, VLen); - XPUT("\""); - break; - case TYPE_OPTSTR: - PName = va_arg(arg_ptr, char*); - PLen = va_arg(arg_ptr, long); - Val = va_arg(arg_ptr, char*); - VLen = va_arg(arg_ptr, long); - if (VLen > 0) + int IsUtf8Sequence; + char *ptr, *pche; + unsigned char ch; + int inlen; + int len = 0; + + if (!buf) return(NULL); + buf[0] = 0; + len = 0; + if (!str) { + return(buf); + } + inlen = strlen(str); + pche = str + inlen; + + for (ptr=str; *ptr; ptr++) { + ch = *ptr; + if (ch == '<') { + strcpy(&buf[len], "<"); + len += 4; + } + else if (ch == '>') { + strcpy(&buf[len], ">"); + len += 4; + } + else if (ch == '&') { + strcpy(&buf[len], "&"); + len += 5; + } + else if ((ch >= 0x20) && (ch <= 0x7F)) { + buf[len++] = ch; + buf[len] = 0; + } + else if (ch < 0x20) { + /* we probably shouldn't be doing this */ + buf[len++] = '_'; + buf[len] = 0; + } + else { + IsUtf8Sequence = Ctdl_GetUtf8SequenceLength(ptr, pche); + if (IsUtf8Sequence) { - XPUT(" "); - XPut(PName, PLen); - XPUT("=\""); - XPutProp(Val, VLen); - XPUT("\""); + while ((IsUtf8Sequence > 0) && + (ptr < pche)) + { + buf[len] = *ptr; + ptr ++; + --IsUtf8Sequence; + } + } + else + { + char oct[10]; + sprintf(oct, "&#%o;", ch); + strcpy(&buf[len], oct); + len += strlen(oct); } - break; - case TYPE_INT: - PName = va_arg(arg_ptr, char*); - PLen = va_arg(arg_ptr, long); - VLen = va_arg(arg_ptr, long); - XPUT(" "); - XPut(PName, PLen); - XPUT("=\""); - XPrintf("%ld", VLen); - XPUT("\""); - break; - case TYPE_BODYSTR: - BodySeen = 1; - XPUT(">"); - Val = va_arg(arg_ptr, char*); - VLen = va_arg(arg_ptr, long); - XPutBody(Val, VLen); - break; - case TYPE_ARGEND: - Finished = 1; - break; - } - } - if (Flags == XCLOSED) - { - if (BodySeen) - { - XPUT(""); } - else - { - XPUT(">"); + if ((len + 6) > bufsiz) { + return(buf); } } - else - XPUT(">"); - va_end(arg_ptr); + return(buf); } -#ifdef HAVE_XML_STOPPARSER -/* Stop the parser if an entity declaration is hit. */ -static void xmpp_entity_declaration(void *userData, const XML_Char *entityName, - int is_parameter_entity, const XML_Char *value, - int value_length, const XML_Char *base, - const XML_Char *systemId, const XML_Char *publicId, - const XML_Char *notationName -) { - XMPPM_syslog(LOG_WARNING, "Illegal entity declaration encountered; stopping parser."); - XML_StopParser(XMPP->xp, XML_FALSE); -} -#endif /* * We have just received a tag from the client, so send them ours */ void xmpp_stream_start(void *data, const char *supplied_el, const char **attr) { - citxmpp *Xmpp = XMPP; + char xmlbuf[256]; while (*attr) { if (!strcasecmp(attr[0], "to")) { - safestrncpy(Xmpp->server_name, attr[1], sizeof Xmpp->server_name); + safestrncpy(XMPP->server_name, attr[1], sizeof XMPP->server_name); } attr += 2; } - XPUT(""); + cprintf(""); + + cprintf("server_name, sizeof xmlbuf)); + cprintf("id=\"%08x\" ", CC->cs_pid); + cprintf("version=\"1.0\" "); + cprintf("xmlns:stream=\"http://etherx.jabber.org/streams\" "); + cprintf("xmlns=\"jabber:client\">"); - XPUT("server_name, strlen(Xmpp->server_name)); - XPUT("\" id=\""); - XPrintf("%08x\" ", CC->cs_pid); - XPUT("version=\"1.0\" " - "xmlns:stream=\"http://etherx.jabber.org/streams\" " - "xmlns=\"jabber:client\">" /* The features of this stream are... */ - ""); + cprintf(""); /* * TLS encryption (but only if it isn't already active) */ -/* #ifdef HAVE_OPENSSL if (!CC->redirect_ssl) { - XPUT(""); + cprintf(""); } #endif -*/ + if (!CC->logged_in) { /* If we're not logged in yet, offer SASL as our feature set */ xmpp_output_auth_mechs(); /* Also offer non-SASL authentication */ - XPUT(""); + cprintf(""); } /* Offer binding and sessions as part of our feature set */ - XPUT("" - "" - ""); + cprintf(""); + cprintf(""); - CC->is_async = 1; /* XMPP sessions are inherently async-capable */ -} + cprintf(""); -void xmpp_start_query(void *data, const char *supplied_el, const char **attr) -{ - XMPP->iq_query_xmlns[0] = 0; - safestrncpy(XMPP->iq_query_xmlns, supplied_el, sizeof XMPP->iq_query_xmlns); + CC->is_async = 1; /* XMPP sessions are inherently async-capable */ } -void xmpp_start_bind(void *data, const char *supplied_el, const char **attr) -{ - XMPP->bind_requested = 1; -} -void xmpp_start_auth(void *data, const char *supplied_el, const char **attr) -{ +void xmpp_xml_start(void *data, const char *supplied_el, const char **attr) { + char el[256]; + char *sep = NULL; int i; - XMPP->sasl_auth_mech[0] = 0; - for (i=0; attr[i] != NULL; i+=2) { - if (!strcasecmp(attr[i], "mechanism")) { - safestrncpy(XMPP->sasl_auth_mech, attr[i+1], sizeof XMPP->sasl_auth_mech); - } + /* Axe the namespace, we don't care about it */ + safestrncpy(el, supplied_el, sizeof el); + while (sep = strchr(el, ':'), sep) { + strcpy(el, ++sep); } -} -/* -void xmpp_start_message(void *data, const char *supplied_el, const char **attr) -{ - int i; +#ifdef XMPP_XML_DEBUG + syslog(LOG_DEBUG, "xmpp: ELEMENT START: <%s>", el); for (i=0; attr[i] != NULL; i+=2) { - if (!strcasecmp(attr[i], "to")) { - safestrncpy(XMPP->message_to, attr[i+1], sizeof XMPP->message_to); - } + syslog(LOG_DEBUG, "xmpp: Attribute '%s' = '%s'", attr[i], attr[i+1]); } -} -*/ -void xmpp_start_html(void *data, const char *supplied_el, const char **attr) -{ - ++XMPP->html_tag_level; -} +#endif -void xmpp_xml_start(void *data, const char *supplied_el, const char **attr) -{ - HashList *ThisNamespace = NULL; - const char *pToken; - const char *pch; - const char *NS = NULL; - long NSLen; - long len; - void *pv; - - /* Axe the namespace, we don't care about it */ - pToken = supplied_el; - pch = strchr(pToken, ':'); - while (pch != NULL) - { - pToken = pch; - pch = strchr(pToken + 1, ':'); + if (!strcasecmp(el, "stream")) { + xmpp_stream_start(data, supplied_el, attr); } - if (*pToken == ':') - { - NS = supplied_el; - NSLen = pToken - supplied_el; - if (GetHash(XMPP_NameSpaces, NS, NSLen, &pv)) - { - ThisNamespace = pv; - - } - - pToken ++; + else if (!strcasecmp(el, "query")) { + XMPP->iq_query_xmlns[0] = 0; + safestrncpy(XMPP->iq_query_xmlns, supplied_el, sizeof XMPP->iq_query_xmlns); } - len = strlen(pToken); - - - if (ThisNamespace != NULL) - { - if (GetHash(ThisNamespace, pToken, len, &pv)) - { - TokenHandler *th; - void *value; - long i = 0; - - th = (TokenHandler*) pv; - value = th->GetToken(); - - while (attr[i] != NULL) - { + else if (!strcasecmp(el, "bind")) { + XMPP->bind_requested = 1; + } - if (GetHash(th->Properties, attr[i], strlen(attr[i]), &pv)) - { - PropertyHandler* ph = pv; - char *val; - StrBuf **pVal; - long len; - - len = strlen(attr[i+1]); - val = value; - val += ph->offset; - pVal = (StrBuf**) val; - if (*pVal != NULL) - StrBufPlain(*pVal, attr[i+1], len); - else - *pVal = NewStrBufPlain(attr[i+1], len); - } - i+=2; + else if (!strcasecmp(el, "iq")) { + for (i=0; attr[i] != NULL; i+=2) { + if (!strcasecmp(attr[i], "type")) { + safestrncpy(XMPP->iq_type, attr[i+1], sizeof XMPP->iq_type); + } + else if (!strcasecmp(attr[i], "id")) { + safestrncpy(XMPP->iq_id, attr[i+1], sizeof XMPP->iq_id); + } + else if (!strcasecmp(attr[i], "from")) { + safestrncpy(XMPP->iq_from, attr[i+1], sizeof XMPP->iq_from); + } + else if (!strcasecmp(attr[i], "to")) { + safestrncpy(XMPP->iq_to, attr[i+1], sizeof XMPP->iq_to); } - return; } + } + else if (!strcasecmp(el, "auth")) { + XMPP->sasl_auth_mech[0] = 0; + for (i=0; attr[i] != NULL; i+=2) { + if (!strcasecmp(attr[i], "mechanism")) { + safestrncpy(XMPP->sasl_auth_mech, attr[i+1], sizeof XMPP->sasl_auth_mech); + } + } } - /* - XMPP_syslog(LOG_DEBUG, "XMPP ELEMENT START: <%s>\n", el); - for (i=0; attr[i] != NULL; i+=2) { - XMPP_syslog(LOG_DEBUG, " Attribute '%s' = '%s'\n", attr[i], attr[i+1]); + + else if (!strcasecmp(el, "message")) { + for (i=0; attr[i] != NULL; i+=2) { + if (!strcasecmp(attr[i], "to")) { + safestrncpy(XMPP->message_to, attr[i+1], sizeof XMPP->message_to); + } + } } - uncomment for more verbosity */ - if (GetHash(XMPP_StartHandlers, pToken, len, &pv)) - { - xmpp_handler *h; - h = (xmpp_handler*) pv; - h->Handler(data, supplied_el, attr); + else if (!strcasecmp(el, "html")) { + ++XMPP->html_tag_level; } } -void xmpp_end_resource(void *data, const char *supplied_el, const char **attr) -{ - if (XMPP->chardata_len > 0) { - safestrncpy(XMPP->iq_client_resource, XMPP->chardata, - sizeof XMPP->iq_client_resource); - striplt(XMPP->iq_client_resource); + + +void xmpp_xml_end(void *data, const char *supplied_el) { + char el[256]; + char *sep = NULL; + char xmlbuf[256]; + + /* Axe the namespace, we don't care about it */ + safestrncpy(el, supplied_el, sizeof el); + while (sep = strchr(el, ':'), sep) { + strcpy(el, ++sep); } -} -void xmpp_end_username(void *data, const char *supplied_el, const char **attr) -{ - /* NON SASL ONLY */ +#ifdef XMPP_XML_DEBUG + syslog(LOG_DEBUG, "xmpp: ELEMENT END : <%s>", el); if (XMPP->chardata_len > 0) { - safestrncpy(XMPP->iq_client_username, XMPP->chardata, - sizeof XMPP->iq_client_username); - striplt(XMPP->iq_client_username); + syslog(LOG_DEBUG, "xmpp: chardata: %s", XMPP->chardata); } -} +#endif -void xmpp_end_password(void *data, const char *supplied_el, const char **attr) -{ /* NON SASL ONLY */ - if (XMPP->chardata_len > 0) { - safestrncpy(XMPP->iq_client_password, XMPP->chardata, - sizeof XMPP->iq_client_password); - striplt(XMPP->iq_client_password); + if (!strcasecmp(el, "resource")) { + if (XMPP->chardata_len > 0) { + safestrncpy(XMPP->iq_client_resource, XMPP->chardata, sizeof XMPP->iq_client_resource); + striplt(XMPP->iq_client_resource); + } } -} -void xmpp_end_iq(void *data, const char *supplied_el, const char **attr) -{ - citxmpp *Xmpp = XMPP; + else if (!strcasecmp(el, "username")) { /* NON SASL ONLY */ + if (XMPP->chardata_len > 0) { + safestrncpy(XMPP->iq_client_username, XMPP->chardata, sizeof XMPP->iq_client_username); + striplt(XMPP->iq_client_username); + } + } - /* - * iq type="get" (handle queries) - */ - if (!strcasecmp(ChrPtr(Xmpp->IQ.type), "get")) - { - /* - * Query on a namespace - */ - if (!IsEmptyStr(Xmpp->iq_query_xmlns)) { - xmpp_query_namespace(&Xmpp->IQ, Xmpp->iq_query_xmlns); + else if (!strcasecmp(el, "password")) { /* NON SASL ONLY */ + if (XMPP->chardata_len > 0) { + safestrncpy(XMPP->iq_client_password, XMPP->chardata, sizeof XMPP->iq_client_password); + striplt(XMPP->iq_client_password); } - + } + + else if (!strcasecmp(el, "iq")) { + /* - * ping ( http://xmpp.org/extensions/xep-0199.html ) + * iq type="get" (handle queries) */ - else if (Xmpp->ping_requested) { - XPUT("IQ.from) > 0) { - XPUT("to=\""); - XPutSProp(Xmpp->IQ.from); - XPUT("\" "); + if (!strcasecmp(XMPP->iq_type, "get")) { + + /* + * Query on a namespace + */ + if (!IsEmptyStr(XMPP->iq_query_xmlns)) { + xmpp_query_namespace(XMPP->iq_id, XMPP->iq_from, XMPP->iq_to, XMPP->iq_query_xmlns); } - if (StrLength(Xmpp->IQ.to)>0) { - XPUT("from=\""); - XPutSProp(Xmpp->IQ.to); - XPUT("\" "); + + /* + * ping ( http://xmpp.org/extensions/xep-0199.html ) + */ + else if (XMPP->ping_requested) { + cprintf("iq_from)) { + cprintf("to=\"%s\" ", xmlesc(xmlbuf, XMPP->iq_from, sizeof xmlbuf)); + } + if (!IsEmptyStr(XMPP->iq_to)) { + cprintf("from=\"%s\" ", xmlesc(xmlbuf, XMPP->iq_to, sizeof xmlbuf)); + } + cprintf("id=\"%s\"/>", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf)); } - XPUT("id=\""); - XPutSProp(Xmpp->IQ.id); - XPUT("\"/>"); - } - /* - * Unknown query ... return the XML equivalent of a blank stare - */ - else { -/* - Xmpp_syslog(LOG_DEBUG, - "Unknown query <%s> - returning \n", - el + /* + * Unknown query ... return the XML equivalent of a blank stare + */ + else { + syslog(LOG_DEBUG, "xmpp: Unknown query <%s> - returning ", el); + cprintf("", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf)); + cprintf("" + "" + "" ); -*/ - XPUT("IQ.id); - XPUT("\">" - "" - "" - "" - ""); + cprintf(""); + } } - } - /* - * Non SASL authentication - */ - else if ( - (!strcasecmp(ChrPtr(Xmpp->IQ.type), "set")) - && (!strcasecmp(Xmpp->iq_query_xmlns, "jabber:iq:auth:query")) - ) { - - xmpp_non_sasl_authenticate( - Xmpp->IQ.id, - Xmpp->iq_client_username, - Xmpp->iq_client_password, - Xmpp->iq_client_resource + /* + * Non SASL authentication + */ + else if ( + (!strcasecmp(XMPP->iq_type, "set")) + && (!strcasecmp(XMPP->iq_query_xmlns, "jabber:iq:auth:query")) + ) { + + xmpp_non_sasl_authenticate( + XMPP->iq_id, + XMPP->iq_client_username, + XMPP->iq_client_password ); - } + } - /* - * If this stanza was a "bind" attempt, process it ... - */ - else if ( - (Xmpp->bind_requested) - && (StrLength(Xmpp->IQ.id)>0) - && (!IsEmptyStr(Xmpp->iq_client_resource)) - && (CC->logged_in) + /* + * If this stanza was a "bind" attempt, process it ... + */ + else if ( + (XMPP->bind_requested) + && (!IsEmptyStr(XMPP->iq_id)) + && (CC->logged_in) ) { - /* Generate the "full JID" of the client resource */ + /* If the client has not specified a client resource, generate one */ - snprintf(Xmpp->client_jid, sizeof Xmpp->client_jid, - "%s/%s", - CC->cs_inet_email, - Xmpp->iq_client_resource - ); + if (IsEmptyStr(XMPP->iq_client_resource)) { + snprintf(XMPP->iq_client_resource, sizeof XMPP->iq_client_resource, "%d", CC->cs_pid); + } - /* Tell the client what its JID is */ + /* Generate the "full JID" of the client resource */ + snprintf(XMPP->client_jid, sizeof XMPP->client_jid, "%s/%s", CC->cs_inet_email, XMPP->iq_client_resource); - XPUT("IQ.id); - XPUT("\">" - ""); - XPUT(""); - XPutBody(Xmpp->client_jid, strlen(Xmpp->client_jid)); - XPUT("" - "" - ""); - } + /* Tell the client what its JID is */ + + cprintf("", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf)); + cprintf(""); + cprintf("%s", xmlesc(xmlbuf, XMPP->client_jid, sizeof xmlbuf)); + cprintf(""); + cprintf(""); + } + + else if (XMPP->iq_session) { + cprintf("", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf)); + cprintf(""); + } - else if (Xmpp->iq_session) { - XPUT("IQ.id); - XPUT("\">" - ""); + else { + cprintf("", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf)); + cprintf("Don't know how to do '%s'!", xmlesc(xmlbuf, XMPP->iq_type, sizeof xmlbuf)); + cprintf(""); + syslog(LOG_DEBUG, "XMPP: don't know how to do iq_type='%s' with iq_query_xmlns='%s'", XMPP->iq_type, XMPP->iq_query_xmlns); + } + + /* Now clear these fields out so they don't get used by a future stanza */ + XMPP->iq_id[0] = 0; + XMPP->iq_from[0] = 0; + XMPP->iq_to[0] = 0; + XMPP->iq_type[0] = 0; + XMPP->iq_client_resource[0] = 0; + XMPP->iq_session = 0; + XMPP->iq_query_xmlns[0] = 0; + XMPP->bind_requested = 0; + XMPP->ping_requested = 0; } - else { - XPUT("IQ.id); - XPUT("\">"); - XPUT("Don't know howto do '"); - XPutBody(SKEY(Xmpp->IQ.type)); - XPUT("'!" - ""); - } - - /* Now clear these fields out so they don't get used by a future stanza */ - FlushStrBuf(Xmpp->IQ.id); - FlushStrBuf(Xmpp->IQ.from); - FlushStrBuf(Xmpp->IQ.to); - FlushStrBuf(Xmpp->IQ.type); - Xmpp->iq_client_resource[0] = 0; - Xmpp->iq_session = 0; - Xmpp->iq_query_xmlns[0] = 0; - Xmpp->bind_requested = 0; - Xmpp->ping_requested = 0; -} + else if (!strcasecmp(el, "auth")) { + /* Try to authenticate (this function is responsible for the output stanza) */ + xmpp_sasl_auth(XMPP->sasl_auth_mech, (XMPP->chardata != NULL ? XMPP->chardata : "") ); -void xmpp_end_auth(void *data, const char *supplied_el, const char **attr) -{ - /* Try to authenticate (this function is responsible for the output stanza) */ - xmpp_sasl_auth(XMPP->sasl_auth_mech, (XMPP->chardata != NULL ? XMPP->chardata : "") ); - - /* Now clear these fields out so they don't get used by a future stanza */ - XMPP->sasl_auth_mech[0] = 0; -} + /* Now clear these fields out so they don't get used by a future stanza */ + XMPP->sasl_auth_mech[0] = 0; + } -void xmpp_end_session(void *data, const char *supplied_el, const char **attr) -{ - XMPP->iq_session = 1; -} + else if (!strcasecmp(el, "session")) { + XMPP->iq_session = 1; + } -void xmpp_end_body(void *data, const char *supplied_el, const char **attr) -{ - if (XMPP->html_tag_level == 0) - { - if (XMPP->message_body != NULL) - { + else if (!strcasecmp(el, "presence")) { + + /* Respond to a update by firing back with presence information + * on the entire wholist. Check this assumption, it's probably wrong. + */ + xmpp_wholist_presence_dump(); + } + + else if ( (!strcasecmp(el, "body")) && (XMPP->html_tag_level == 0) ) { + if (XMPP->message_body != NULL) { free(XMPP->message_body); XMPP->message_body = NULL; } @@ -573,76 +477,48 @@ void xmpp_end_body(void *data, const char *supplied_el, const char **attr) XMPP->message_body = strdup(XMPP->chardata); } } -} -void xmpp_end_html(void *data, const char *supplied_el, const char **attr) -{ - --XMPP->html_tag_level; -} + else if (!strcasecmp(el, "message")) { + xmpp_send_message(XMPP->message_to, XMPP->message_body); + XMPP->html_tag_level = 0; + } -void xmpp_end_starttls(void *data, const char *supplied_el, const char **attr) -{ + else if (!strcasecmp(el, "html")) { + --XMPP->html_tag_level; + } + + else if (!strcasecmp(el, "starttls")) { #ifdef HAVE_OPENSSL - XPUT(""); - XUnbuffer(); - CtdlModuleStartCryptoMsgs(NULL, NULL, NULL); - if (!CC->redirect_ssl) CC->kill_me = KILLME_NO_CRYPTO; + cprintf(""); + CtdlModuleStartCryptoMsgs(NULL, NULL, NULL); + if (!CC->redirect_ssl) CC->kill_me = KILLME_NO_CRYPTO; #else - XPUT(""); - CC->kill_me = KILLME_NO_CRYPTO; + cprintf(""); + CC->kill_me = KILLME_NO_CRYPTO; #endif -} - -void xmpp_end_ping(void *data, const char *supplied_el, const char **attr) -{ - XMPP->ping_requested = 1; -} - -void xmpp_end_stream(void *data, const char *supplied_el, const char **attr) -{ - XMPPM_syslog(LOG_DEBUG, "XMPP client shut down their stream\n"); - xmpp_massacre_roster(); - XPUT("\n"); - CC->kill_me = KILLME_CLIENT_LOGGED_OUT; -} - -void xmpp_xml_end(void *data, const char *supplied_el) -{ - const char *pToken; - const char *pch; - long len; - void *pv; - - /* Axe the namespace, we don't care about it */ - pToken = supplied_el; - pch = strchr(pToken, ':'); - while (pch != NULL) - { - pToken = pch; - pch = strchr(pToken + 1, ':'); } - if (*pToken == ':') - pToken ++; + else if (!strcasecmp(el, "ping")) { + XMPP->ping_requested = 1; + } - len = strlen(pToken); + else if (!strcasecmp(el, "stream")) { + syslog(LOG_DEBUG, "xmpp: client shut down their stream"); + xmpp_massacre_roster(); + cprintf("\n"); + CC->kill_me = KILLME_CLIENT_LOGGED_OUT; + } - /* - XMPP_syslog(LOG_DEBUG, "XMPP ELEMENT END : <%s>\n", el); - if (XMPP->chardata_len > 0) { - XMPP_syslog(LOG_DEBUG, " chardata: %s\n", XMPP->chardata); + else if (!strcasecmp(el, "query")) { + /* already processed , no further action needed here */ } - uncomment for more verbosity */ - if (GetHash(XMPP_EndHandlers, pToken, len, &pv)) - { - xmpp_handler *h; - h = (xmpp_handler*) pv; - h->Handler(data, supplied_el, NULL); + else if (!strcasecmp(el, "bind")) { + /* already processed , no further action needed here */ } - else - { - XMPP_syslog(LOG_DEBUG, "Ignoring unknown tag <%s>\n", pToken); + + else { + syslog(LOG_DEBUG, "xmpp: ignoring unknown tag <%s>", el); } XMPP->chardata_len = 0; @@ -687,15 +563,11 @@ void xmpp_cleanup_function(void) { free(XMPP->message_body); } } - free_buf_iq(&XMPP->IQ); - XML_ParserFree(XMPP->xp); - FreeStrBuf(&XMPP->OutBuf); free(XMPP); } - /* * Here's where our XMPP session begins its happy day. */ @@ -705,12 +577,12 @@ void xmpp_greeting(void) { CC->session_specific_data = malloc(sizeof(citxmpp)); memset(XMPP, 0, sizeof(citxmpp)); XMPP->last_event_processed = queue_event_seq; - XMPP->OutBuf = NewStrBufPlain(NULL, SIZ); + /* XMPP does not use a greeting, but we still have to initialize some things. */ XMPP->xp = XML_ParserCreateNS("UTF-8", ':'); if (XMPP->xp == NULL) { - XMPPM_syslog(LOG_ALERT, "Cannot create XML parser!\n"); + syslog(LOG_ERR, "xmpp: cannot create XML parser"); CC->kill_me = KILLME_XML_PARSER; return; } @@ -731,7 +603,6 @@ void xmpp_greeting(void) { #endif CC->can_receive_im = 1; /* This protocol is capable of receiving instant messages */ - XUnbuffer(); } @@ -748,11 +619,10 @@ void xmpp_command_loop(void) { XML_Parse(XMPP->xp, ChrPtr(stream_input), rc, 0); } else { - XMPPM_syslog(LOG_ERR, "client disconnected: ending session.\n"); + syslog(LOG_ERR, "xmpp: client disconnected: ending session."); CC->kill_me = KILLME_CLIENT_DISCONNECTED; } FreeStrBuf(&stream_input); - XUnbuffer(); } @@ -781,171 +651,27 @@ void xmpp_logout_hook(void) { } -void LogXMPPSrvDebugEnable(const int n) -{ - XMPPSrvDebugEnable = n; -} const char *CitadelServiceXMPP="XMPP"; - - - -/****************************************************************************** - * XMPP handler registering logic * - ******************************************************************************/ - -void AddXMPPStartHandler(const char *key, - long len, - xmpp_handler_func Handler, - int Flags) -{ - xmpp_handler *h; - h = (xmpp_handler*) malloc(sizeof (xmpp_handler)); - h->Flags = Flags; - h->Handler = Handler; - Put(XMPP_StartHandlers, key, len, h, NULL); -} - -void AddXMPPEndHandler(const char *key, - long len, - xmpp_handler_func Handler, - int Flags) -{ - xmpp_handler *h; - h = (xmpp_handler*) malloc(sizeof (xmpp_handler)); - h->Flags = Flags; - h->Handler = Handler; - Put(XMPP_EndHandlers, key, len, h, NULL); -} - -void HFreePropertyHandler(void *FreeMe) -{ - free(FreeMe); -} - -void HDeleteTokenHandler(void *FreeMe) -{ - TokenHandler *th = (TokenHandler *) FreeMe; - DeleteHash(&th->Properties); - free(th); -} - -void XMPP_RegisterTokenProperty(const char *NS, long NSLen, - const char *Token, long TLen, - const char *Property, long PLen, - GetTokenDataFunc GetToken, - long offset) -{ - void *pv; - HashList *ThisNamespace = NULL; - PropertyHandler *h; - TokenHandler *th; - - h = (PropertyHandler*) malloc(sizeof(PropertyHandler)); - h->NameSpace = NS; - h->NameSpaceLen = NSLen; - h->Token = Token; - h->TokenLen = TLen; - h->Property = Property; - h->PropertyLen = PLen; - h->offset = offset; - - if (!GetHash(XMPP_SupportedNamespaces, NS, NSLen, &pv)) - { - Put(XMPP_SupportedNamespaces, NS, NSLen, NewStrBufPlain(NS, NSLen), HFreeStrBuf); - } - - - if (GetHash(XMPP_NameSpaces, NS, NSLen, &pv)) - { - ThisNamespace = pv; - } - else - { - ThisNamespace = NewHash(1, NULL); - Put(XMPP_NameSpaces, NS, NSLen, ThisNamespace, HDeleteHash); - } - - if (GetHash(ThisNamespace, Token, TLen, &pv)) - { - th = pv; - } - else - { - th = (TokenHandler*) malloc (sizeof(TokenHandler)); - th->GetToken = GetToken; - th->Properties = NewHash(1, NULL); - Put(ThisNamespace, Token, TLen, th, HDeleteTokenHandler); - } - - - if (PLen > 0) - Put(th->Properties, Property, PLen, h, HFreePropertyHandler); - /* - if (!GetHash(FlatToken, Token, TLen, &pv)) - { - // todo mark pv as non uniq - Put(FlatToken, Token, TLen, ThisToken, reference_free_handler); - } - */ -} - -void xmpp_cleanup(void) -{ - DeleteHash(&XMPP_StartHandlers); - DeleteHash(&XMPP_EndHandlers); - DeleteHash(&XMPP_SupportedNamespaces); - DeleteHash(&XMPP_NameSpaces); - DeleteHash(&FlatToken); -} - +extern void xmpp_cleanup_events(void); CTDL_MODULE_INIT(xmpp) { if (!threading) { - CtdlRegisterServiceHook(config.c_xmpp_c2s_port, + CtdlRegisterServiceHook(CtdlGetConfigInt("c_xmpp_c2s_port"), NULL, xmpp_greeting, xmpp_command_loop, xmpp_async_loop, - CitadelServiceXMPP); - - - XMPP_StartHandlers = NewHash(1, NULL); - XMPP_EndHandlers = NewHash(1, NULL); - XMPP_NameSpaces = NewHash(1, NULL); - XMPP_SupportedNamespaces = NewHash(1, NULL); - FlatToken = NewHash(1, NULL); - - AddXMPPEndHandler(HKEY("resource"), xmpp_end_resource, 0); - AddXMPPEndHandler(HKEY("username"), xmpp_end_username, 0); - AddXMPPEndHandler(HKEY("password"), xmpp_end_password, 0); - AddXMPPEndHandler(HKEY("iq"), xmpp_end_iq, 0); - AddXMPPEndHandler(HKEY("auth"), xmpp_end_auth, 0); - AddXMPPEndHandler(HKEY("session"), xmpp_end_session, 0); - AddXMPPEndHandler(HKEY("body"), xmpp_end_body, 0); - AddXMPPEndHandler(HKEY("html"), xmpp_end_html, 0); - AddXMPPEndHandler(HKEY("starttls"), xmpp_end_starttls, 0); - AddXMPPEndHandler(HKEY("ping"), xmpp_end_ping, 0); - AddXMPPEndHandler(HKEY("stream"), xmpp_end_stream, 0); - - AddXMPPStartHandler(HKEY("stream"), xmpp_stream_start, 0); - AddXMPPStartHandler(HKEY("query"), xmpp_start_query, 0); - AddXMPPStartHandler(HKEY("bind"), xmpp_start_bind, 0); - AddXMPPStartHandler(HKEY("auth"), xmpp_start_auth, 0); -/// AddXMPPStartHandler(HKEY("message"), xmpp_start_message, 0); - AddXMPPStartHandler(HKEY("html"), xmpp_start_html, 0); - - - CtdlRegisterDebugFlagHook(HKEY("serv_xmpp"), LogXMPPSrvDebugEnable, &XMPPSrvDebugEnable); + CitadelServiceXMPP + ); CtdlRegisterSessionHook(xmpp_cleanup_function, EVT_STOP, PRIO_STOP + 70); CtdlRegisterSessionHook(xmpp_login_hook, EVT_LOGIN, PRIO_LOGIN + 90); CtdlRegisterSessionHook(xmpp_logout_hook, EVT_LOGOUT, PRIO_LOGOUT + 90); CtdlRegisterSessionHook(xmpp_login_hook, EVT_UNSTEALTH, PRIO_UNSTEALTH + 1); CtdlRegisterSessionHook(xmpp_logout_hook, EVT_STEALTH, PRIO_STEALTH + 1); - CtdlRegisterCleanupHook(xmpp_cleanup); + CtdlRegisterCleanupHook(xmpp_cleanup_events); + } /* return our module name for the log */ return "xmpp"; } - -