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Define stanza's attributes as const char*

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In most get-like funcitons libstrophe returns pointer to a string
that resides in an internal structure (e.g. xmpp_stanza_t). Hence,
Profanity must not change such strings. Define respective variables
as 'const char*' to reduce a chance of error and conform future
libstrophe's interface.

This patch mostly replaces 'char *' with 'const char*', but also
fixes two memory leaks after stanza_get_reason(). Add comment within
stanza_get_reason() to fix conflict with different allocator types.
This commit is contained in:
Dmitry Podgorny
2016-04-27 10:31:28 +00:00
parent 5687c3e419
commit efbf233c85
13 changed files with 170 additions and 164 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
src/xmpp/stanza.c
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@@ -1136,9 +1136,9 @@ stanza_get_delay(xmpp_stanza_t *const stanza)
// first check for XEP-0203 delayed delivery
xmpp_stanza_t *delay = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_DELAY);
if (delay) {
char *xmlns = xmpp_stanza_get_attribute(delay, STANZA_ATTR_XMLNS);
const char *xmlns = xmpp_stanza_get_attribute(delay, STANZA_ATTR_XMLNS);
if (xmlns && (strcmp(xmlns, "urn:xmpp:delay") == 0)) {
char *stamp = xmpp_stanza_get_attribute(delay, STANZA_ATTR_STAMP);
const char *stamp = xmpp_stanza_get_attribute(delay, STANZA_ATTR_STAMP);
if (stamp && (g_time_val_from_iso8601(stamp, &utc_stamp))) {
GDateTime *utc_datetime = g_date_time_new_from_timeval_utc(&utc_stamp);
GDateTime *local_datetime = g_date_time_to_local(utc_datetime);
@@ -1152,9 +1152,9 @@ stanza_get_delay(xmpp_stanza_t *const stanza)
// stanp format : CCYYMMDDThh:mm:ss
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
if (x) {
char *xmlns = xmpp_stanza_get_attribute(x, STANZA_ATTR_XMLNS);
const char *xmlns = xmpp_stanza_get_attribute(x, STANZA_ATTR_XMLNS);
if (xmlns && (strcmp(xmlns, "jabber:x:delay") == 0)) {
char *stamp = xmpp_stanza_get_attribute(x, STANZA_ATTR_STAMP);
const char *stamp = xmpp_stanza_get_attribute(x, STANZA_ATTR_STAMP);
if (stamp && (g_time_val_from_iso8601(stamp, &utc_stamp))) {
GDateTime *utc_datetime = g_date_time_new_from_timeval_utc(&utc_stamp);
GDateTime *local_datetime = g_date_time_to_local(utc_datetime);
@@ -1251,7 +1251,7 @@ stanza_muc_requires_config(xmpp_stanza_t *const stanza)
if (item == NULL) {
return FALSE;
}
char *affiliation = xmpp_stanza_get_attribute(item, "affiliation");
const char *affiliation = xmpp_stanza_get_attribute(item, "affiliation");
if (g_strcmp0(affiliation, "owner") != 0) {
return FALSE;
}
@@ -1260,7 +1260,7 @@ stanza_muc_requires_config(xmpp_stanza_t *const stanza)
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children) {
if (g_strcmp0(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
const char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (g_strcmp0(code, "201") == 0) {
return TRUE;
}
@@ -1288,7 +1288,7 @@ stanza_is_muc_self_presence(xmpp_stanza_t *const stanza,
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children) {
if (g_strcmp0(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
const char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (g_strcmp0(code, "110") == 0) {
return TRUE;
}
@@ -1299,7 +1299,7 @@ stanza_is_muc_self_presence(xmpp_stanza_t *const stanza,
// check for item child element with jid property
xmpp_stanza_t *item = xmpp_stanza_get_child_by_name(x, STANZA_NAME_ITEM);
if (item) {
char *jid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
const char *jid = xmpp_stanza_get_attribute(item, STANZA_ATTR_JID);
if (jid) {
if (g_str_has_prefix(self_jid, jid)) {
return TRUE;
@@ -1308,7 +1308,7 @@ stanza_is_muc_self_presence(xmpp_stanza_t *const stanza,
}
// check if 'from' attribute identifies this user
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
const char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (from) {
Jid *from_jid = jid_create(from);
if (muc_active(from_jid->barejid)) {
@@ -1348,9 +1348,9 @@ stanza_get_status_codes_by_ns(xmpp_stanza_t *const stanza, char *ns)
if (ns_child) {
xmpp_stanza_t *child = xmpp_stanza_get_children(ns_child);
while (child) {
char *name = xmpp_stanza_get_name(child);
const char *name = xmpp_stanza_get_name(child);
if (g_strcmp0(name, STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(child, STANZA_ATTR_CODE);
const char *code = xmpp_stanza_get_attribute(child, STANZA_ATTR_CODE);
if (code) {
codes = g_slist_append(codes, strdup(code));
}
@@ -1364,7 +1364,7 @@ stanza_get_status_codes_by_ns(xmpp_stanza_t *const stanza, char *ns)
gboolean
stanza_room_destroyed(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
@@ -1378,16 +1378,16 @@ stanza_room_destroyed(xmpp_stanza_t *stanza)
return FALSE;
}
char*
const char*
stanza_get_muc_destroy_alternative_room(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
xmpp_stanza_t *destroy = xmpp_stanza_get_child_by_name(x, STANZA_NAME_DESTROY);
if (destroy) {
char *jid = xmpp_stanza_get_attribute(destroy, STANZA_ATTR_JID);
const char *jid = xmpp_stanza_get_attribute(destroy, STANZA_ATTR_JID);
if (jid) {
return jid;
}
@@ -1401,7 +1401,7 @@ stanza_get_muc_destroy_alternative_room(xmpp_stanza_t *stanza)
char*
stanza_get_muc_destroy_alternative_password(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
@@ -1423,7 +1423,7 @@ stanza_get_muc_destroy_alternative_password(xmpp_stanza_t *stanza)
char*
stanza_get_muc_destroy_reason(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
@@ -1442,10 +1442,10 @@ stanza_get_muc_destroy_reason(xmpp_stanza_t *stanza)
return NULL;
}
char*
const char*
stanza_get_actor(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
@@ -1453,11 +1453,11 @@ stanza_get_actor(xmpp_stanza_t *stanza)
if (item) {
xmpp_stanza_t *actor = xmpp_stanza_get_child_by_name(item, STANZA_NAME_ACTOR);
if (actor) {
char *nick = xmpp_stanza_get_attribute(actor, STANZA_ATTR_NICK);
const char *nick = xmpp_stanza_get_attribute(actor, STANZA_ATTR_NICK);
if (nick) {
return nick;
}
char *jid = xmpp_stanza_get_attribute(actor, STANZA_ATTR_JID);
const char *jid = xmpp_stanza_get_attribute(actor, STANZA_ATTR_JID);
if (jid) {
return jid;
}
@@ -1471,7 +1471,7 @@ stanza_get_actor(xmpp_stanza_t *stanza)
char*
stanza_get_reason(xmpp_stanza_t *stanza)
{
char *stanza_name = xmpp_stanza_get_name(stanza);
const char *stanza_name = xmpp_stanza_get_name(stanza);
if (g_strcmp0(stanza_name, STANZA_NAME_PRESENCE) == 0) {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_ns(stanza, STANZA_NS_MUC_USER);
if (x) {
@@ -1479,6 +1479,9 @@ stanza_get_reason(xmpp_stanza_t *stanza)
if (item) {
xmpp_stanza_t *reason_st = xmpp_stanza_get_child_by_name(item, STANZA_NAME_REASON);
if (reason_st) {
/* TODO don't return text generated by xmpp_stanza_get_text(),
* because it should be freed by xmpp_free(). Instead, return
* strdup(reason) and free the `reason'. Check similar places. */
char *reason = xmpp_stanza_get_text(reason_st);
if (reason) {
return reason;
@@ -1506,7 +1509,7 @@ stanza_is_room_nick_change(xmpp_stanza_t *const stanza)
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children) {
if (g_strcmp0(xmpp_stanza_get_name(x_children), STANZA_NAME_STATUS) == 0) {
char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
const char *code = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_CODE);
if (g_strcmp0(code, "303") == 0) {
return TRUE;
}
@@ -1518,7 +1521,7 @@ stanza_is_room_nick_change(xmpp_stanza_t *const stanza)
return FALSE;
}
char*
const char*
stanza_get_new_nick(xmpp_stanza_t *const stanza)
{
if (!stanza_is_room_nick_change(stanza)) {
@@ -1530,7 +1533,7 @@ stanza_get_new_nick(xmpp_stanza_t *const stanza)
while (x_children) {
if (strcmp(xmpp_stanza_get_name(x_children), STANZA_NAME_ITEM) == 0) {
char *nick = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_NICK);
const char *nick = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_NICK);
if (nick) {
return nick;
}
@@ -1550,7 +1553,7 @@ stanza_get_idle_time(xmpp_stanza_t *const stanza)
return 0;
}
char *ns = xmpp_stanza_get_ns(query);
const char *ns = xmpp_stanza_get_ns(query);
if (ns == NULL) {
return 0;
}
@@ -1559,7 +1562,7 @@ stanza_get_idle_time(xmpp_stanza_t *const stanza)
return 0;
}
char *seconds_str = xmpp_stanza_get_attribute(query, STANZA_ATTR_SECONDS);
const char *seconds_str = xmpp_stanza_get_attribute(query, STANZA_ATTR_SECONDS);
if (seconds_str == NULL) {
return 0;
}
@@ -1581,14 +1584,14 @@ stanza_parse_caps(xmpp_stanza_t *const stanza)
return NULL;
}
char *ns = xmpp_stanza_get_ns(caps_st);
const char *ns = xmpp_stanza_get_ns(caps_st);
if (g_strcmp0(ns, STANZA_NS_CAPS) != 0) {
return NULL;
}
char *hash = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_HASH);
char *node = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_NODE);
char *ver = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_VER);
const char *hash = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_HASH);
const char *node = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_NODE);
const char *ver = xmpp_stanza_get_attribute(caps_st, STANZA_ATTR_VER);
XMPPCaps *caps = (XMPPCaps *)malloc(sizeof(XMPPCaps));
caps->hash = hash ? strdup(hash) : NULL;
@@ -1611,8 +1614,8 @@ stanza_get_caps_str(xmpp_stanza_t *const stanza)
return NULL;
}
char *node = xmpp_stanza_get_attribute(caps, STANZA_ATTR_NODE);
char *ver = xmpp_stanza_get_attribute(caps, STANZA_ATTR_VER);
const char *node = xmpp_stanza_get_attribute(caps, STANZA_ATTR_NODE);
const char *ver = xmpp_stanza_get_attribute(caps, STANZA_ATTR_VER);
if ((node == NULL) || (ver == NULL)) {
return NULL;
@@ -1848,7 +1851,7 @@ stanza_free_presence(XMPPPresence *presence)
XMPPPresence*
stanza_parse_presence(xmpp_stanza_t *stanza, int *err)
{
char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
const char *from = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_FROM);
if (!from) {
*err = STANZA_PARSE_ERROR_NO_FROM;
return NULL;