#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
+#include <stdarg.h>
#include <fcntl.h>
#include <signal.h>
#include <pwd.h>
#include <string.h>
#include <limits.h>
#include <ctype.h>
+#define SHOW_ME_VAPPEND_PRINTF
#include <libcitadel.h>
#include <expat.h>
#include "citadel.h"
int XMPPSrvDebugEnable = 0;
+void XUnbuffer(void)
+{
+ citxmpp *Xmpp = XMPP;
+
+ cputbuf(Xmpp->OutBuf);
+ FlushStrBuf(Xmpp->OutBuf);
+}
+
+void XPutBody(const char *Str, long Len)
+{
+ StrBufXMLEscAppend(XMPP->OutBuf, NULL, Str, Len, 0);
+}
+
+void XPutProp(const char *Str, long Len)
+{
+ StrEscAppend(XMPP->OutBuf, NULL, Str, 0, 1);
+}
+
+void XPut(const char *Str, long Len)
+{
+ StrBufAppendBufPlain(XMPP->OutBuf, Str, Len, 0);
+}
+#define XPUT(CONSTSTR) XPut(CONSTSTR, sizeof(CONSTSTR) -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);
+}
#ifdef HAVE_XML_STOPPARSER
}
#endif
-static inline int XMPP_GetUtf8SequenceLength(const char *CharS, const char *CharE)
-{
- /* if this is is migrated to strbuf, remove this copy. */
- int n = 0;
- unsigned char test = (1<<7);
-
- if ((*CharS & 0xC0) != 0xC0)
- return 1;
-
- while ((n < 8) &&
- ((test & ((unsigned char)*CharS)) != 0))
- {
- test = test >> 1;
- n ++;
- }
- if ((n > 6) || ((CharE - CharS) < n))
- n = 0;
- return n;
-}
-
-
-/*
- * 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.
- *
- * BUG: this does not properly handle UTF-8
- */
-char *xmlesc(char *buf, char *str, int bufsiz)
-{
- char *ptr;
- char *eiptr;
- unsigned char ch;
- int inlen;
- int len = 0;
- int IsUtf8Sequence;
-
- if (!buf) return(NULL);
- buf[0] = 0;
- len = 0;
- if (!str) {
- return(buf);
- }
-
- inlen = strlen(str);
- eiptr = 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 {
- char oct[32];
-
- IsUtf8Sequence = XMPP_GetUtf8SequenceLength(&buf[len], eiptr);
- if (IsUtf8Sequence)
- {
- while (IsUtf8Sequence > 0){
- buf[len] = *ptr;
- len ++;
- if (--IsUtf8Sequence)
- ptr++;
- }
- buf[len] = '\0';
- }
- else
- {
- sprintf(oct, "&#%o;", ch);
- strcpy(&buf[len], oct);
- len += strlen(oct);
- }
- }
- if ((len + 6) > bufsiz) {
- return(buf);
- }
- }
- return(buf);
-}
-
-
/*
* We have just received a <stream> tag from the client, so send them ours
*/
void xmpp_stream_start(void *data, const char *supplied_el, const char **attr)
{
- char xmlbuf[256];
+ citxmpp *Xmpp = XMPP;
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;
}
- cprintf("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+ XPUT("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
- cprintf("<stream:stream ");
- cprintf("from=\"%s\" ", xmlesc(xmlbuf, XMPP->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("<stream:stream ");
+ XPUT("from=\"");
+ XPutProp(Xmpp->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("<stream:features>");
+ XPUT("<stream:features>");
/*
* TLS encryption (but only if it isn't already active)
*/
#ifdef HAVE_OPENSSL
if (!CC->redirect_ssl) {
- cprintf("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'></starttls>");
+ XPUT("<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'></starttls>");
}
#endif
xmpp_output_auth_mechs();
/* Also offer non-SASL authentication */
-
cprintf("<auth xmlns=\"http://jabber.org/features/iq-auth\"/>");
+
XPUT("<auth xmlns=\"http://jabber.org/features/iq-auth\"/>");
}
/* Offer binding and sessions as part of our feature set */
- cprintf("<bind xmlns=\"urn:ietf:params:xml:ns:xmpp-bind\"/>");
- cprintf("<session xmlns=\"urn:ietf:params:xml:ns:xmpp-session\"/>");
-
- cprintf("</stream:features>");
+ XPUT("<bind xmlns=\"urn:ietf:params:xml:ns:xmpp-bind\"/>"
+ "<session xmlns=\"urn:ietf:params:xml:ns:xmpp-session\"/>"
+ "</stream:features>");
CC->is_async = 1; /* XMPP sessions are inherently async-capable */
}
h = (xmpp_handler*) pv;
h->Handler(data, supplied_el, attr);
}
-
+ XUnbuffer();
}
void xmpp_end_resource(void *data, const char *supplied_el, const char **attr)
void xmpp_end_iq(void *data, const char *supplied_el, const char **attr)
{
- char xmlbuf[256];
+ citxmpp *Xmpp = XMPP;
+
/*
* iq type="get" (handle queries)
*/
- if (!strcasecmp(XMPP->iq_type, "get"))
+ 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 (!IsEmptyStr(Xmpp->iq_query_xmlns)) {
+ xmpp_query_namespace(Xmpp->iq_id, Xmpp->iq_from,
+ Xmpp->iq_to, Xmpp->iq_query_xmlns);
}
/*
* ping ( http://xmpp.org/extensions/xep-0199.html )
*/
- else if (XMPP->ping_requested) {
- cprintf("<iq type=\"result\" ");
- if (!IsEmptyStr(XMPP->iq_from)) {
- cprintf("to=\"%s\" ", xmlesc(xmlbuf, XMPP->iq_from, sizeof xmlbuf));
+ else if (Xmpp->ping_requested) {
+ XPUT("<iq type=\"result\" ");
+ if (!IsEmptyStr(Xmpp->iq_from)) {
+ XPUT("to=\"");
+ XPutProp(Xmpp->iq_from, strlen(Xmpp->iq_from));
+ XPUT("\" ");
}
- if (!IsEmptyStr(XMPP->iq_to)) {
- cprintf("from=\"%s\" ", xmlesc(xmlbuf, XMPP->iq_to, sizeof xmlbuf));
+ if (!IsEmptyStr(Xmpp->iq_to)) {
+ XPUT("from=\"");
+ XPutProp(Xmpp->iq_to, strlen(Xmpp->iq_to));
+ XPUT("\" ");
}
- cprintf("id=\"%s\"/>", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf));
+ XPUT("id=\"");
+ XPutProp(Xmpp->iq_id, strlen(Xmpp->iq_id));
+ XPUT("\"/>");
}
/*
*/
else {
/*
- XMPP_syslog(LOG_DEBUG,
+ Xmpp_syslog(LOG_DEBUG,
"Unknown query <%s> - returning <service-unavailable/>\n",
el
);
*/
- cprintf("<iq type=\"error\" id=\"%s\">", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf));
- cprintf("<error code=\"503\" type=\"cancel\">"
- "<service-unavailable xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"/>"
- "</error>"
- );
- cprintf("</iq>");
+ XPUT("<iq type=\"error\" id=\"");
+ XPutProp(Xmpp->iq_id, strlen(Xmpp->iq_id));
+ XPUT("\">"
+ "<error code=\"503\" type=\"cancel\">"
+ "<service-unavailable xmlns=\"urn:ietf:params:xml:ns:xmpp-stanzas\"/>"
+ "</error>"
+ "</iq>");
}
}
* Non SASL authentication
*/
else if (
- (!strcasecmp(XMPP->iq_type, "set"))
- && (!strcasecmp(XMPP->iq_query_xmlns, "jabber:iq:auth:query"))
+ (!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,
- XMPP->iq_client_resource
+ Xmpp->iq_id,
+ Xmpp->iq_client_username,
+ Xmpp->iq_client_password,
+ Xmpp->iq_client_resource
);
}
* If this <iq> stanza was a "bind" attempt, process it ...
*/
else if (
- (XMPP->bind_requested)
- && (!IsEmptyStr(XMPP->iq_id))
- && (!IsEmptyStr(XMPP->iq_client_resource))
+ (Xmpp->bind_requested)
+ && (!IsEmptyStr(Xmpp->iq_id))
+ && (!IsEmptyStr(Xmpp->iq_client_resource))
&& (CC->logged_in)
) {
/* Generate the "full JID" of the client resource */
- snprintf(XMPP->client_jid, sizeof XMPP->client_jid,
+ snprintf(Xmpp->client_jid, sizeof Xmpp->client_jid,
"%s/%s",
CC->cs_inet_email,
- XMPP->iq_client_resource
+ Xmpp->iq_client_resource
);
/* Tell the client what its JID is */
- cprintf("<iq type=\"result\" id=\"%s\">", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf));
- cprintf("<bind xmlns=\"urn:ietf:params:xml:ns:xmpp-bind\">");
- cprintf("<jid>%s</jid>", xmlesc(xmlbuf, XMPP->client_jid, sizeof xmlbuf));
- cprintf("</bind>");
- cprintf("</iq>");
+ XPUT("<iq type=\"result\" id=\"");
+ XPutProp(Xmpp->iq_id, strlen(Xmpp->iq_id));
+ XPUT("\">"
+ "<bind xmlns=\"urn:ietf:params:xml:ns:xmpp-bind\">");
+ XPUT("<jid>");
+ XPutBody(Xmpp->client_jid, strlen(Xmpp->client_jid));
+ XPUT("</jid>"
+ "</bind>"
+ "</iq>");
}
- else if (XMPP->iq_session) {
- cprintf("<iq type=\"result\" id=\"%s\">", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf));
- cprintf("</iq>");
+ else if (Xmpp->iq_session) {
+ XPUT("<iq type=\"result\" id=\"");
+ XPutProp(Xmpp->iq_id, strlen(Xmpp->iq_id));
+ XPUT("\">"
+ "</iq>");
}
else {
- cprintf("<iq type=\"error\" id=\"%s\">", xmlesc(xmlbuf, XMPP->iq_id, sizeof xmlbuf));
- cprintf("<error>Don't know howto do '%s'!</error>", xmlesc(xmlbuf, XMPP->iq_type, sizeof xmlbuf));
- cprintf("</iq>");
+ XPUT("<iq type=\"error\" id=\"");
+ XPutProp(Xmpp->iq_id, strlen(Xmpp->iq_id));
+ XPUT("\">");
+ XPUT("<error>Don't know howto do '");
+ XPutBody(Xmpp->iq_type, strlen(Xmpp->iq_type));
+ XPUT("'!</error>"
+ "</iq>");
}
/* 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;
+ 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;
}
XMPP->iq_session = 1;
}
-void xmpp_end_presence(void *data, const char *supplied_el, const char **attr)
-{
- /* Respond to a <presence> update by firing back with presence information
- * on the entire wholist. Check this assumption, it's probably wrong.
- */
- xmpp_wholist_presence_dump();
-}
-
void xmpp_end_body(void *data, const char *supplied_el, const char **attr)
{
if (XMPP->html_tag_level == 0)
}
}
-void xmpp_end_message(void *data, const char *supplied_el, const char **attr)
-{
- xmpp_send_message(XMPP->message_to, XMPP->message_body);
- XMPP->html_tag_level = 0;
-}
-
void xmpp_end_html(void *data, const char *supplied_el, const char **attr)
{
--XMPP->html_tag_level;
void xmpp_end_starttls(void *data, const char *supplied_el, const char **attr)
{
#ifdef HAVE_OPENSSL
-
cprintf("<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
+
XPUT("<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
CtdlModuleStartCryptoMsgs(NULL, NULL, NULL);
if (!CC->redirect_ssl) CC->kill_me = KILLME_NO_CRYPTO;
#else
- cprintf("<failure xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
+ XPUT("<failure xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>");
CC->kill_me = KILLME_NO_CRYPTO;
#endif
}
{
XMPPM_syslog(LOG_DEBUG, "XMPP client shut down their stream\n");
xmpp_massacre_roster();
- cprintf("</stream>\n");
+ XPUT("</stream>\n");
CC->kill_me = KILLME_CLIENT_LOGGED_OUT;
}
if (XMPP->chardata_alloc > 0) {
XMPP->chardata[0] = 0;
}
+ XUnbuffer();
}
AddXMPPEndHandler(HKEY("iq"), xmpp_end_iq, 0);
AddXMPPEndHandler(HKEY("auth"), xmpp_end_auth, 0);
AddXMPPEndHandler(HKEY("session"), xmpp_end_session, 0);
- AddXMPPEndHandler(HKEY("presence"), xmpp_end_presence, 0);
AddXMPPEndHandler(HKEY("body"), xmpp_end_body, 0);
- AddXMPPEndHandler(HKEY("message"), xmpp_end_message, 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);
projects / citadel.git / blobdiff