Merge remote-tracking branch 'cwtitan/namespace'

src/auth.c

@@ -866,11 +866,11 @@ void auth_handle_open(xmpp_conn_t * const conn)
 
     /* setup handler for stream:error */
     handler_add(conn, _handle_error,
-		NULL, "stream:error", NULL, NULL);
+		XMPP_NS_STREAMS, "error", NULL, NULL);
 
     /* setup handlers for incoming <stream:features> */
     handler_add(conn, _handle_features,
-		NULL, "stream:features", NULL, NULL);
+		XMPP_NS_STREAMS, "features", NULL, NULL);
     handler_add_timed(conn, _handle_missing_features,
 		      FEATURES_TIMEOUT, NULL);
 }
@@ -882,7 +882,7 @@ static void _handle_open_sasl(xmpp_conn_t * const conn)
 
     /* setup stream:features handlers */
     handler_add(conn, _handle_features_sasl,
-		NULL, "stream:features", NULL, NULL);
+		XMPP_NS_STREAMS, "features", NULL, NULL);
     handler_add_timed(conn, _handle_missing_features_sasl,
 		      FEATURES_TIMEOUT, NULL);
 }
@@ -1168,7 +1168,7 @@ void auth_handle_component_open(xmpp_conn_t * const conn)
     /* reset all timed handlers */
     handler_reset_timed(conn, 0);
 
-    handler_add(conn, _handle_error, NULL, "stream:error", NULL, NULL);
+    handler_add(conn, _handle_error, XMPP_NS_STREAMS, "error", NULL, NULL);
     handler_add(conn, _handle_component_hs_response, NULL,
                 "handshake", NULL, NULL);
     handler_add_timed(conn, _handle_missing_handshake, HANDSHAKE_TIMEOUT, NULL);

src/conn.c

@@ -789,7 +789,7 @@ static void _handle_stream_start(char *name, char **attrs,
     xmpp_conn_t *conn = (xmpp_conn_t *)userdata;
     char *id;
 
-    if (strcmp(name, "stream:stream") != 0) {
+    if (strcmp(name, "stream")) {
         printf("name = %s\n", name);
         xmpp_error(conn->ctx, "conn", "Server did not open valid stream.");
         conn_disconnect(conn);

src/parser_expat.c

@@ -23,6 +23,9 @@
 #include "common.h"
 #include "parser.h"
 
+/* ASCII FF is invalid UTF-8 and should never be present in well-formed XML */
+#define NAMESPACE_SEP ('\xFF')
+
 struct _parser_t {
     xmpp_ctx_t *ctx;
     XML_Parser expat;
@@ -34,23 +37,71 @@ struct _parser_t {
     xmpp_stanza_t *stanza;
 };
 
+/* return allocated string with the name from a delimited
+ * namespace/name string */
+static char *_xml_name(xmpp_ctx_t *ctx, const char *nsname)
+{
+    char *result = NULL;
+    const char *c;
+    int len;
+
+    c = strchr(nsname, NAMESPACE_SEP);
+    if (c == NULL) return xmpp_strdup(ctx, nsname);
+
+    c++;
+    len = strlen(c);
+    result = xmpp_alloc(ctx, len + 1);
+    if (result != NULL) {
+	memcpy(result, c, len);
+	result[len] = '\0';
+    }
+
+    return result;
+}
+
+/* return allocated string with the namespace from a delimited string */
+static char *_xml_namespace(xmpp_ctx_t *ctx, const char *nsname)
+{
+    char *result = NULL;
+    const char *c;
+
+    c = strchr(nsname, NAMESPACE_SEP);
+    if (c != NULL) {
+	result = xmpp_alloc(ctx, (c-nsname) + 1);
+	if (result != NULL) {
+	    memcpy(result, nsname, (c-nsname));
+	    result[c-nsname] = '\0';
+	}
+    }
+
+    return result;
+}
+
 static void _set_attributes(xmpp_stanza_t *stanza, const XML_Char **attrs)
 {
+    char *attr;
     int i;
 
     if (!attrs) return;
 
     for (i = 0; attrs[i]; i += 2) {
-        xmpp_stanza_set_attribute(stanza, attrs[i], attrs[i+1]);
+        /* namespaced attributes aren't used in xmpp, discard namespace */
+        attr = _xml_name(stanza->ctx, attrs[i]);
+        xmpp_stanza_set_attribute(stanza, attr, attrs[i+1]);
+        xmpp_free(stanza->ctx, attr);
     }
 }
 
 static void _start_element(void *userdata,
-                           const XML_Char *name,
+                           const XML_Char *nsname,
                            const XML_Char **attrs)
 {
     parser_t *parser = (parser_t *)userdata;
     xmpp_stanza_t *child;
+    char *ns, *name;
+
+    ns = _xml_namespace(parser->ctx, nsname);
+    name = _xml_name(parser->ctx, nsname);
 
     if (parser->depth == 0) {
         /* notify the owner */
@@ -71,6 +122,8 @@ static void _start_element(void *userdata,
 	    }
 	    xmpp_stanza_set_name(parser->stanza, name);
 	    _set_attributes(parser->stanza, attrs);
+	    if (ns)
+		xmpp_stanza_set_ns(parser->stanza, ns);
 	} else {
 	    /* starting a child of parser->stanza */
 	    child = xmpp_stanza_new(parser->ctx);
@@ -79,6 +132,8 @@ static void _start_element(void *userdata,
 	    }
 	    xmpp_stanza_set_name(child, name);
 	    _set_attributes(child, attrs);
+	    if (ns)
+		xmpp_stanza_set_ns(child, ns);
 
 	    /* add child to parent */
 	    xmpp_stanza_add_child(parser->stanza, child);
@@ -91,6 +146,9 @@ static void _start_element(void *userdata,
 	}
     }
 
+    if (ns) xmpp_free(parser->ctx, ns);
+    if (name) xmpp_free(parser->ctx, name);
+
     parser->depth++;
 }
 
@@ -180,7 +238,7 @@ int parser_reset(parser_t *parser)
     if (parser->stanza) 
 	xmpp_stanza_release(parser->stanza);
 
-    parser->expat = XML_ParserCreate(NULL);
+    parser->expat = XML_ParserCreateNS(NULL, NAMESPACE_SEP);
     if (!parser->expat) return 0;
 
     parser->depth = 0;

src/parser_libxml2.c

@@ -36,28 +36,91 @@ struct _parser_t {
     xmpp_stanza_t *stanza;
 };
 
-static void _set_attributes(xmpp_stanza_t *stanza, const xmlChar **attrs)
+static void _set_attributes(xmpp_stanza_t *stanza, int nattrs,
+                            const xmlChar **attrs)
 {
-    int i;
+    int i, len;
+    char *value;
 
     if (!attrs) return;
 
-    for (i = 0; attrs[i]; i += 2) {
-        xmpp_stanza_set_attribute(stanza, (const char *)attrs[i], (const char *)attrs[i+1]);
+    /* SAX2 uses array of localname/prefix/uri/value_begin/value_end */
+    for (i = 0; i < nattrs*5; i += 5) {
+        len = attrs[i+4] - attrs[i+3];
+        value = xmpp_alloc(stanza->ctx, len + 1);
+	if (value) {
+	    memcpy(value, attrs[i+3], len);
+	    value[len] = '\0';
+	    xmpp_stanza_set_attribute(stanza, (const char *)attrs[i], value);
+	    xmpp_free(stanza->ctx, value);
+	}
     }
 }
 
+/* SAX2 gives us the attrs in an incredibly inconvenient array,
+ * convert it to what the start callback is expecting */
+static char **_convert_attrs(parser_t *parser, int nattrs,
+                             const xmlChar **attrs)
+{
+    int c, i, o, len;
+    char *value;
+    char **ret;
+
+    if (!attrs) return NULL;
+
+    ret = xmpp_alloc(parser->ctx, (nattrs+1)*2*sizeof(char*));
+    if (!ret) return NULL;
+    memset(ret, 0, (nattrs+1)*2*sizeof(char*));
+
+    for (c = 0; c < nattrs; c++) {
+        i = c * 5;
+        o = c * 2;
+
+        len = attrs[i+4] - attrs[i+3];
+        value = xmpp_alloc(parser->ctx, len + 1);
+        if (value) {
+            memcpy(value, attrs[i+3], len);
+            value[len] = '\0';
+            ret[o] = xmpp_strdup(parser->ctx, (char*)attrs[i]);
+            ret[o+1] = value;
+        }
+    }
+
+    return ret;
+}
+
+static void _free_cbattrs(parser_t *parser, char **attrs)
+{
+    int i;
+
+    if (!attrs)
+        return;
+
+    for (i = 0; attrs[i]; i += 2) {
+        if (attrs[i]) xmpp_free(parser->ctx, attrs[i]);
+        if (attrs[i+1]) xmpp_free(parser->ctx, attrs[i+1]);
+    }
+
+    xmpp_free(parser->ctx, attrs);
+}
+
 static void _start_element(void *userdata, 
-                           const xmlChar *name, const xmlChar **attrs)
+                           const xmlChar *name, const xmlChar *prefix,
+                           const xmlChar *uri, int nnamespaces,
+                           const xmlChar **namespaces, int nattrs,
+                           int ndefaulted, const xmlChar **attrs)
 {
     parser_t *parser = (parser_t *)userdata;
     xmpp_stanza_t *child;
+    char **cbattrs;
 
     if (parser->depth == 0) {
         /* notify the owner */
         if (parser->startcb)
-            parser->startcb((char *)name, (char **)attrs, 
+            cbattrs = _convert_attrs(parser, nattrs, attrs);
+            parser->startcb((char *)name, cbattrs, 
                             parser->userdata);
+            _free_cbattrs(parser, cbattrs);
     } else {
 	/* build stanzas at depth 1 */
 	if (!parser->stanza && parser->depth != 1) {
@@ -71,7 +134,9 @@ static void _start_element(void *userdata,
 		/* FIXME: can't allocate, disconnect */
 	    }
 	    xmpp_stanza_set_name(parser->stanza, (char *)name);
-	    _set_attributes(parser->stanza, attrs);
+	    _set_attributes(parser->stanza, nattrs, attrs);
+	    if (uri)
+		xmpp_stanza_set_ns(parser->stanza, (char *)uri);
 	} else {
 	    /* starting a child of conn->stanza */
 	    child = xmpp_stanza_new(parser->ctx);
@@ -79,7 +144,9 @@ static void _start_element(void *userdata,
 		/* FIXME: can't allocate, disconnect */
 	    }
 	    xmpp_stanza_set_name(child, (char *)name);
-	    _set_attributes(child, attrs);
+	    _set_attributes(child, nattrs, attrs);
+	    if (uri)
+		xmpp_stanza_set_ns(child, (char *)uri);
 
 	    /* add child to parent */
 	    xmpp_stanza_add_child(parser->stanza, child);
@@ -95,7 +162,8 @@ static void _start_element(void *userdata,
     parser->depth++;
 }
 
-static void _end_element(void *userdata, const xmlChar *name)
+static void _end_element(void *userdata, const xmlChar *name,
+                         const xmlChar *prefix, const xmlChar *uri)
 {
     parser_t *parser = (parser_t *)userdata;
 
@@ -153,8 +221,9 @@ parser_t *parser_new(xmpp_ctx_t *ctx,
         parser->ctx = ctx;
         parser->xmlctx = NULL;
         memset(&parser->handlers, 0, sizeof(xmlSAXHandler));
-        parser->handlers.startElement = _start_element;
-        parser->handlers.endElement = _end_element;
+        parser->handlers.initialized = XML_SAX2_MAGIC;
+        parser->handlers.startElementNs = _start_element;
+        parser->handlers.endElementNs = _end_element;
         parser->handlers.characters = _characters;
         parser->startcb = startcb;
         parser->endcb = endcb;

src/stanza.c

@@ -317,6 +317,20 @@ static int _render_stanza_recursive(xmpp_stanza_t *stanza,
 	if (stanza->attributes && hash_num_keys(stanza->attributes) > 0) {
 	    iter = hash_iter_new(stanza->attributes);
 	    while ((key = hash_iter_next(iter))) {
+		if (!strcmp(key, "xmlns")) {
+		    /* don't output namespace if parent stanza is the same */
+		    if (stanza->parent &&
+			stanza->parent->attributes &&
+			hash_get(stanza->parent->attributes, key) &&
+			!strcmp((char*)hash_get(stanza->attributes, key),
+			    (char*)hash_get(stanza->parent->attributes, key)))
+			continue;
+		    /* or if this is the stream namespace */
+		    if (!stanza->parent &&
+			!strcmp((char*)hash_get(stanza->attributes, key),
+			    XMPP_NS_CLIENT))
+			continue;
+		}
 		tmp = _escape_xml(stanza->ctx,
 		    (char *)hash_get(stanza->attributes, key));
 		if (tmp == NULL) return XMPP_EMEM;

tests/check_parser.c

@@ -34,14 +34,14 @@ END_TEST
 int cbtest_got_start = 0;
 void cbtest_handle_start(char *name, char **attrs, void *userdata)
 {
-    if (strcmp(name, "stream:stream") == 0)
+    if (strcmp(name, "stream") == 0)
         cbtest_got_start = 1;
 }
 
 int cbtest_got_end = 0;
 void cbtest_handle_end(char *name, void *userdata)
 {
-    if (strcmp(name, "stream:stream") == 0)
+    if (strcmp(name, "stream") == 0)
         cbtest_got_end = 1;
 }
 
@@ -64,9 +64,9 @@ START_TEST(callbacks)
                         cbtest_handle_end,
                         cbtest_handle_stanza, NULL);
 
-    ret = parser_feed(parser, "<stream:stream>", 15);
+    ret = parser_feed(parser, "<stream>", 8);
     ret = parser_feed(parser, "<message/>", 10);
-    parser_feed(parser, "</stream:stream>", 16);
+    parser_feed(parser, "</stream>", 9);
 
     fail_unless(cbtest_got_start == 1);
     fail_unless(cbtest_got_end == 1);