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Refactroed self presence checks, handle null stanzas

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Issue #341
This commit is contained in:
James Booth
2014-05-06 22:07:44 +01:00
parent ba8d1325ad
commit 143c5a3493
2 changed files with 74 additions and 109 deletions
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145
src/xmpp/stanza.c
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@@ -634,127 +634,92 @@ gboolean
stanza_is_muc_self_presence(xmpp_stanza_t * const stanza,
const char * const self_jid)
{
if (stanza == NULL) {
return FALSE;
}
if (strcmp(xmpp_stanza_get_name(stanza), STANZA_NAME_PRESENCE) != 0) {
// no stanza, or not presence stanza
if ((stanza == NULL) || (g_strcmp0(xmpp_stanza_get_name(stanza), STANZA_NAME_PRESENCE) != 0)) {
return FALSE;
}
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
// muc user namespaced x element
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x != NULL) {
if (x == NULL) {
return FALSE;
}
char *ns = xmpp_stanza_get_ns(x);
if (ns == NULL) {
return FALSE;
}
if (strcmp(ns, STANZA_NS_MUC_USER) != 0) {
return FALSE;
}
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
if (x_children == NULL) {
return FALSE;
}
while (x_children != NULL) {
if (strcmp(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (strcmp(code, "110") == 0) {
return TRUE;
// check for status child element with 110 code
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children != NULL) {
if (g_strcmp0(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (g_strcmp0(code, "110") == 0) {
return TRUE;
}
}
x_children = xmpp_stanza_get_next(x_children);
}
x_children = xmpp_stanza_get_next(x_children);
}
// for older server that don't send status 110
x_children = xmpp_stanza_get_children(x);
while (x_children != NULL) {
if (strcmp(xmpp_stanza_get_name(x_children), STANZA_NAME_ITEM) == 0) {
char *jid = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_JID);
// check for item child element with jid property
xmpp_stanza_t *item = xmpp_stanza_get_child_by_name(x, STANZA_NAME_ITEM);
if (item != NULL) {
char *jid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
if (jid != NULL) {
if (g_str_has_prefix(jid, self_jid)) {
if (g_str_has_prefix(self_jid, jid)) {
return TRUE;
}
}
}
x_children = xmpp_stanza_get_next(x_children);
}
// for servers that don't send status 110 or Jid property
// first check if 'from' attribute identifies this user
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (from != NULL) {
Jid *jidp = jid_create(from);
if (muc_room_is_active(jidp->barejid)) {
char *nick = muc_get_room_nick(jidp->barejid);
if (g_strcmp0(jidp->resourcepart, nick) == 0) {
return TRUE;
}
}
jid_destroy(jidp);
}
// secondly check if the new nickname maps to a pending nick change for this user
if (from != NULL) {
Jid *jidp = jid_create(from);
if (muc_is_room_pending_nick_change(jidp->barejid)) {
char *new_nick = jidp->resourcepart;
if (new_nick != NULL) {
char *nick = muc_get_room_nick(jidp->barejid);
char *old_nick = muc_get_old_nick(jidp->barejid, new_nick);
if (g_strcmp0(old_nick, nick) == 0) {
// check if 'from' attribute identifies this user
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (from != NULL) {
Jid *from_jid = jid_create(from);
if (muc_room_is_active(from_jid->barejid)) {
char *nick = muc_get_room_nick(from_jid->barejid);
if (g_strcmp0(from_jid->resourcepart, nick) == 0) {
return TRUE;
}
}
// check if a new nickname maps to a pending nick change for this user
if (muc_is_room_pending_nick_change(from_jid->barejid)) {
char *new_nick = from_jid->resourcepart;
if (new_nick != NULL) {
char *nick = muc_get_room_nick(from_jid->barejid);
char *old_nick = muc_get_old_nick(from_jid->barejid, new_nick);
if (g_strcmp0(old_nick, nick) == 0) {
return TRUE;
}
}
}
jid_destroy(from_jid);
}
jid_destroy(jidp);
}
// self presence not found
return FALSE;
}
gboolean
stanza_is_room_nick_change(xmpp_stanza_t * const stanza)
{
if (stanza == NULL) {
return FALSE;
}
if (strcmp(xmpp_stanza_get_name(stanza), STANZA_NAME_PRESENCE) != 0) {
// no stanza, or not presence stanza
if ((stanza == NULL) || (g_strcmp0(xmpp_stanza_get_name(stanza), STANZA_NAME_PRESENCE) != 0)) {
return FALSE;
}
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
// muc user namespaced x element
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x != NULL) {
if (x == NULL) {
return FALSE;
}
char *ns = xmpp_stanza_get_ns(x);
if (ns == NULL) {
return FALSE;
}
if (strcmp(ns, STANZA_NS_MUC_USER) != 0) {
return FALSE;
}
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
if (x_children == NULL) {
return FALSE;
}
while (x_children != NULL) {
if (strcmp(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (strcmp(code, "303") == 0) {
return TRUE;
// check for status child element with 303 code
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children != NULL) {
if (g_strcmp0(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (g_strcmp0(code, "303") == 0) {
return TRUE;
}
}
x_children = xmpp_stanza_get_next(x_children);
}
x_children = xmpp_stanza_get_next(x_children);
}
return FALSE;