Mercurial > pidgin3 / file revision

libpurple/tests/test_xmlnode.c@e76677ed819c

libpurple/tests/test_xmlnode.c

Sat, 27 Aug 2016 18:16:01 -0500

author
Mike Ruprecht <cmaiku@gmail.com>
date
Sat, 27 Aug 2016 18:16:01 -0500
changeset 37959
e76677ed819c
parent 37607
773815a9a48f
child 38057
41f47eb1aa19
permissions
-rw-r--r--

connection: Add purple_connection_take_error()

This patch adds a purple_connection_take_error() function, which
is functionally equivalent to purple_connection_g_error(), except
that it takes ownership of the passed GError.

This is useful to simplify error handling so that the GError doesn't
have to be freed, or, in the future potentially copied, if it's no
longer needed where it's generated. It can also allow for GErrors
being generated without storing them in a variable. This would be
reasonably common if/when all PurpleConnection errors are passed
in via GError.

#include <glib.h>

#include "../xmlnode.h"

/*
 * If we really wanted to test the billion laughs attack we would
 * need to have more than just 4 ha's.  But as long as this shorter
 * document fails to parse, the longer one should also fail to parse.
 */
static void
test_xmlnode_billion_laughs_attack(void) {
	const char *malicious_xml_doc = "<!DOCTYPE root [ <!ENTITY ha \"Ha !\"><!ENTITY ha2 \"&ha; &ha;\"><!ENTITY ha3 \"&ha2; &ha2;\"> ]><root>&ha3;</root>";

	/* Uncomment this line if you want to see the error message given by
	   the parser for the above XML document */
	/* purple_debug_set_enabled(TRUE); */

	g_assert_null(purple_xmlnode_from_str(malicious_xml_doc, -1));
}

#define check_doc_structure(x) { \
	PurpleXmlNode *ping, *child1, *child2; \
	g_assert_nonnull(x); \
	ping = purple_xmlnode_get_child(x, "ping"); \
	g_assert_nonnull(ping); \
	child1 = purple_xmlnode_get_child(ping, "child1"); \
	g_assert_nonnull(child1); \
	child2 = purple_xmlnode_get_child(child1, "child2"); \
	g_assert_nonnull(child2); \
	purple_xmlnode_new_child(child2, "a"); \
	\
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_namespace(x)); \
	/* NOTE: purple_xmlnode_get_namespace() returns the namespace of the element, not the
	 * current default namespace.  See http://www.w3.org/TR/xml-names/#defaulting and
	 * http://www.w3.org/TR/xml-names/#dt-defaultNS.
	 */ \
	g_assert_cmpstr("urn:xmpp:ping", ==, purple_xmlnode_get_namespace(ping)); \
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_namespace(child1)); \
	g_assert_cmpstr("urn:xmpp:ping", ==, purple_xmlnode_get_namespace(child2)); \
	/*
	 * This fails (well, actually crashes [the ns is NULL]) unless
	 * purple_xmlnode_new_child() actually sets the element namespace.
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_namespace(purple_xmlnode_get_child(child2, "a")));
	 */ \
	\
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_default_namespace(x)); \
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_default_namespace(ping)); \
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_default_namespace(child1)); \
	g_assert_cmpstr("jabber:client", ==, purple_xmlnode_get_default_namespace(child2)); \
}

static void
test_xmlnode_prefixes(void) {
	const char *xml_doc =
		"<iq type='get' xmlns='jabber:client' xmlns:ping='urn:xmpp:ping'>"
			"<ping:ping>"
				"<child1>"
					"<ping:child2></ping:child2>" /* xmlns='jabber:child' */
				"</child1>"
			"</ping:ping>"
		"</iq>";
	char *str;
	PurpleXmlNode *xml, *reparsed;

	xml = purple_xmlnode_from_str(xml_doc, -1);
	check_doc_structure(xml);

	/* Check that purple_xmlnode_from_str(purple_xmlnode_to_str(xml, NULL), -1) is idempotent. */
	str = purple_xmlnode_to_str(xml, NULL);
	g_assert_nonnull(str);
	reparsed = purple_xmlnode_from_str(str, -1);
	g_assert_nonnull(reparsed);
	check_doc_structure(reparsed);

	g_free(str);
	purple_xmlnode_free(xml);
	purple_xmlnode_free(reparsed);
}

static void
test_strip_prefixes(void) {
	const char *xml_doc = "<message xmlns='jabber:client' from='user@gmail.com/resource' to='another_user@darkrain42.org' type='chat' id='purple'>"
		"<cha:active xmlns:cha='http://jabber.org/protocol/chatstates'/>"
		"<body>xvlc xvlc</body>"
		"<im:html xmlns:im='http://jabber.org/protocol/xhtml-im'>"
			"<xht:body xmlns:xht='http://www.w3.org/1999/xhtml'>"
				"<xht:p>xvlc <xht:span style='font-weight: bold;'>xvlc</xht:span></xht:p>"
			"</xht:body>"
		"</im:html>"
	"</message>";
	const char *out = "<message xmlns='jabber:client' from='user@gmail.com/resource' to='another_user@darkrain42.org' type='chat' id='purple'>"
		"<active xmlns:cha='http://jabber.org/protocol/chatstates' xmlns='http://jabber.org/protocol/chatstates'/>"
		"<body>xvlc xvlc</body>"
		"<html xmlns:im='http://jabber.org/protocol/xhtml-im' xmlns='http://jabber.org/protocol/xhtml-im'>"
			"<body xmlns:xht='http://www.w3.org/1999/xhtml' xmlns='http://www.w3.org/1999/xhtml'>"
				"<p>xvlc <span style='font-weight: bold;'>xvlc</span></p>"
			"</body>"
		"</html>"
	"</message>";
	char *str;
	PurpleXmlNode *xml;

	xml = purple_xmlnode_from_str(xml_doc, -1);
	g_assert_nonnull(xml);

	purple_xmlnode_strip_prefixes(xml);
	str = purple_xmlnode_to_str(xml, NULL);
	g_assert_cmpstr(out, ==, str);
	g_free(str);

	purple_xmlnode_free(xml);
}

gint
main(gint argc, gchar **argv) {
	g_test_init(&argc, &argv, NULL);

	g_test_add_func("/xmlnode/billion_laughs_attack",
	                test_xmlnode_billion_laughs_attack);
	g_test_add_func("/xmlnode/prefixes",
	                test_xmlnode_prefixes);
	g_test_add_func("/xmlnode/strip_prefixes",
	                test_strip_prefixes);

	return g_test_run();
}

Mercurial Repository: pidgin3

mercurial