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profanity/src/stanza.c
James Booth e2e805dd4f Tidied up memory allocation in capabilities
2013-01-23 22:24:54 +00:00

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/*
* stanza.c
*
* Copyright (C) 2012, 2013 James Booth <boothj5@gmail.com>
*
* This file is part of Profanity.
*
* Profanity is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Profanity is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Profanity. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include <strophe.h>
#include "common.h"
#include "stanza.h"
static int _field_compare(FormField *f1, FormField *f2);
xmpp_stanza_t *
stanza_create_chat_state(xmpp_ctx_t *ctx, const char * const recipient,
const char * const state)
{
xmpp_stanza_t *msg, *chat_state;
msg = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(msg, STANZA_NAME_MESSAGE);
xmpp_stanza_set_type(msg, STANZA_TYPE_CHAT);
xmpp_stanza_set_attribute(msg, STANZA_ATTR_TO, recipient);
chat_state = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(chat_state, state);
xmpp_stanza_set_ns(chat_state, STANZA_NS_CHATSTATES);
xmpp_stanza_add_child(msg, chat_state);
return msg;
}
xmpp_stanza_t *
stanza_create_message(xmpp_ctx_t *ctx, const char * const recipient,
const char * const type, const char * const message,
const char * const state)
{
char *encoded_xml = encode_xml(message);
xmpp_stanza_t *msg, *body, *text;
msg = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(msg, STANZA_NAME_MESSAGE);
xmpp_stanza_set_type(msg, type);
xmpp_stanza_set_attribute(msg, STANZA_ATTR_TO, recipient);
body = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(body, STANZA_NAME_BODY);
text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(text, encoded_xml);
xmpp_stanza_add_child(body, text);
xmpp_stanza_add_child(msg, body);
if (state != NULL) {
xmpp_stanza_t *chat_state = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(chat_state, state);
xmpp_stanza_set_ns(chat_state, STANZA_NS_CHATSTATES);
xmpp_stanza_add_child(msg, chat_state);
}
g_free(encoded_xml);
return msg;
}
xmpp_stanza_t *
stanza_create_room_join_presence(xmpp_ctx_t *ctx,
const char * const full_room_jid)
{
xmpp_stanza_t *presence = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(presence, STANZA_NAME_PRESENCE);
xmpp_stanza_set_attribute(presence, STANZA_ATTR_TO, full_room_jid);
xmpp_stanza_t *x = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(x, STANZA_NAME_X);
xmpp_stanza_set_ns(x, STANZA_NS_MUC);
xmpp_stanza_add_child(presence, x);
return presence;
}
xmpp_stanza_t *
stanza_create_room_newnick_presence(xmpp_ctx_t *ctx,
const char * const full_room_jid)
{
xmpp_stanza_t *presence = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(presence, STANZA_NAME_PRESENCE);
xmpp_stanza_set_attribute(presence, STANZA_ATTR_TO, full_room_jid);
return presence;
}
xmpp_stanza_t *
stanza_create_room_leave_presence(xmpp_ctx_t *ctx, const char * const room,
const char * const nick)
{
GString *full_jid = g_string_new(room);
g_string_append(full_jid, "/");
g_string_append(full_jid, nick);
xmpp_stanza_t *presence = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(presence, STANZA_NAME_PRESENCE);
xmpp_stanza_set_type(presence, STANZA_TYPE_UNAVAILABLE);
xmpp_stanza_set_attribute(presence, STANZA_ATTR_TO, full_jid->str);
g_string_free(full_jid, TRUE);
return presence;
}
xmpp_stanza_t *
stanza_create_presence(xmpp_ctx_t *ctx, const char * const show,
const char * const status)
{
xmpp_stanza_t *presence = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(presence, STANZA_NAME_PRESENCE);
if (show != NULL) {
xmpp_stanza_t *show_stanza = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(show_stanza, STANZA_NAME_SHOW);
xmpp_stanza_t *text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(text, show);
xmpp_stanza_add_child(show_stanza, text);
xmpp_stanza_add_child(presence, show_stanza);
xmpp_stanza_release(text);
xmpp_stanza_release(show_stanza);
}
if (status != NULL) {
xmpp_stanza_t *status_stanza = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(status_stanza, STANZA_NAME_STATUS);
xmpp_stanza_t *text = xmpp_stanza_new(ctx);
xmpp_stanza_set_text(text, status);
xmpp_stanza_add_child(status_stanza, text);
xmpp_stanza_add_child(presence, status_stanza);
xmpp_stanza_release(text);
xmpp_stanza_release(status_stanza);
}
return presence;
}
xmpp_stanza_t *
stanza_create_roster_iq(xmpp_ctx_t *ctx)
{
xmpp_stanza_t *iq = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iq, STANZA_NAME_IQ);
xmpp_stanza_set_type(iq, STANZA_TYPE_GET);
xmpp_stanza_set_id(iq, "roster");
xmpp_stanza_t *query = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(query, STANZA_NAME_QUERY);
xmpp_stanza_set_ns(query, XMPP_NS_ROSTER);
xmpp_stanza_add_child(iq, query);
xmpp_stanza_release(query);
return iq;
}
xmpp_stanza_t *
stanza_create_disco_iq(xmpp_ctx_t *ctx, const char * const id, const char * const to,
const char * const node)
{
xmpp_stanza_t *iq = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iq, STANZA_NAME_IQ);
xmpp_stanza_set_type(iq, STANZA_TYPE_GET);
xmpp_stanza_set_attribute(iq, STANZA_ATTR_TO, to);
xmpp_stanza_set_id(iq, id);
xmpp_stanza_t *query = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(query, STANZA_NAME_QUERY);
xmpp_stanza_set_ns(query, XMPP_NS_DISCO_INFO);
xmpp_stanza_set_attribute(query, STANZA_ATTR_NODE, node);
xmpp_stanza_add_child(iq, query);
xmpp_stanza_release(query);
return iq;
}
gboolean
stanza_contains_chat_state(xmpp_stanza_t *stanza)
{
return ((xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_ACTIVE) != NULL) ||
(xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_COMPOSING) != NULL) ||
(xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_PAUSED) != NULL) ||
(xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_GONE) != NULL) ||
(xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_INACTIVE) != NULL));
}
xmpp_stanza_t *
stanza_create_ping_iq(xmpp_ctx_t *ctx)
{
xmpp_stanza_t *iq = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(iq, STANZA_NAME_IQ);
xmpp_stanza_set_type(iq, STANZA_TYPE_GET);
xmpp_stanza_set_id(iq, "c2s1");
xmpp_stanza_t *ping = xmpp_stanza_new(ctx);
xmpp_stanza_set_name(ping, STANZA_NAME_PING);
xmpp_stanza_set_ns(ping, STANZA_NS_PING);
xmpp_stanza_add_child(iq, ping);
xmpp_stanza_release(ping);
return iq;
}
gboolean
stanza_get_delay(xmpp_stanza_t * const stanza, GTimeVal *tv_stamp)
{
// first check for XEP-0203 delayed delivery
xmpp_stanza_t *delay = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_DELAY);
if (delay != NULL) {
char *xmlns = xmpp_stanza_get_attribute(delay, STANZA_ATTR_XMLNS);
if ((xmlns != NULL) && (strcmp(xmlns, "urn:xmpp:delay") == 0)) {
char *stamp = xmpp_stanza_get_attribute(delay, STANZA_ATTR_STAMP);
if ((stamp != NULL) && (g_time_val_from_iso8601(stamp, tv_stamp))) {
return TRUE;
}
}
}
// otherwise check for XEP-0091 legacy delayed delivery
// stanp format : CCYYMMDDThh:mm:ss
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
if (x != NULL) {
char *xmlns = xmpp_stanza_get_attribute(x, STANZA_ATTR_XMLNS);
if ((xmlns != NULL) && (strcmp(xmlns, "jabber:x:delay") == 0)) {
char *stamp = xmpp_stanza_get_attribute(x, STANZA_ATTR_STAMP);
if ((stamp != NULL) && (g_time_val_from_iso8601(stamp, tv_stamp))) {
return TRUE;
}
}
}
return FALSE;
}
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) {
return FALSE;
}
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
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;
}
}
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);
if (jid != NULL) {
if (g_str_has_prefix(jid, self_jid)) {
return TRUE;
}
}
}
x_children = xmpp_stanza_get_next(x_children);
}
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) {
return FALSE;
}
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
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;
}
}
x_children = xmpp_stanza_get_next(x_children);
}
return FALSE;
}
char *
stanza_get_new_nick(xmpp_stanza_t * const stanza)
{
if (!stanza_is_room_nick_change(stanza)) {
return NULL;
} else {
xmpp_stanza_t *x = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_X);
xmpp_stanza_t *x_children = xmpp_stanza_get_children(x);
while (x_children != NULL) {
if (strcmp(xmpp_stanza_get_name(x_children), STANZA_NAME_ITEM) == 0) {
char *nick = xmpp_stanza_get_attribute(x_children, STANZA_ATTR_NICK);
if (nick != NULL) {
return strdup(nick);
}
}
x_children = xmpp_stanza_get_next(x_children);
}
return NULL;
}
}
int
stanza_get_idle_time(xmpp_stanza_t * const stanza)
{
xmpp_stanza_t *query = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_QUERY);
if (query == NULL) {
return 0;
}
char *ns = xmpp_stanza_get_ns(query);
if (ns == NULL) {
return 0;
}
if (strcmp(ns, STANZA_NS_LASTACTIVITY) != 0) {
return 0;
}
char *seconds_str = xmpp_stanza_get_attribute(query, STANZA_ATTR_SECONDS);
if (seconds_str == NULL) {
return 0;
}
int result = atoi(seconds_str);
if (result < 1) {
return 0;
} else {
return result;
}
}
gboolean
stanza_contains_caps(xmpp_stanza_t * const stanza)
{
xmpp_stanza_t *caps = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_C);
if (caps == NULL) {
return FALSE;
}
if (strcmp(xmpp_stanza_get_ns(caps), STANZA_NS_CAPS) != 0) {
return FALSE;
}
return TRUE;
}
gboolean
stanza_is_version_request(xmpp_stanza_t * const stanza)
{
char *type = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_TYPE);
if (g_strcmp0(type, STANZA_TYPE_GET) != 0) {
return FALSE;
}
xmpp_stanza_t *query = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_QUERY);
if (query == NULL) {
return FALSE;
}
char *ns = xmpp_stanza_get_ns(query);
if (ns == NULL) {
return FALSE;
}
if (strcmp(ns, STANZA_NS_VERSION) != 0) {
return FALSE;
}
return TRUE;
}
gboolean
stanza_is_caps_request(xmpp_stanza_t * const stanza)
{
char *type = xmpp_stanza_get_attribute(stanza, STANZA_ATTR_TYPE);
if (g_strcmp0(type, STANZA_TYPE_GET) != 0) {
return FALSE;
}
xmpp_stanza_t *query = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_QUERY);
if (query == NULL) {
return FALSE;
}
char *ns = xmpp_stanza_get_ns(query);
if (ns == NULL) {
return FALSE;
}
if (strcmp(ns, XMPP_NS_DISCO_INFO) != 0) {
return FALSE;
}
return TRUE;
}
char *
stanza_caps_get_hash(xmpp_stanza_t * const stanza)
{
xmpp_stanza_t *caps = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_C);
if (caps == NULL) {
return NULL;
}
if (strcmp(xmpp_stanza_get_ns(caps), STANZA_NS_CAPS) != 0) {
return NULL;
}
char *result = xmpp_stanza_get_attribute(caps, STANZA_ATTR_HASH);
return result;
}
char *
stanza_get_caps_str(xmpp_stanza_t * const stanza)
{
xmpp_stanza_t *caps = xmpp_stanza_get_child_by_name(stanza, STANZA_NAME_C);
if (caps == NULL) {
return NULL;
}
if (strcmp(xmpp_stanza_get_ns(caps), STANZA_NS_CAPS) != 0) {
return NULL;
}
char *node = xmpp_stanza_get_attribute(caps, STANZA_ATTR_NODE);
char *ver = xmpp_stanza_get_attribute(caps, STANZA_ATTR_VER);
if ((node == NULL) || (ver == NULL)) {
return NULL;
}
GString *caps_gstr = g_string_new(node);
g_string_append(caps_gstr, "#");
g_string_append(caps_gstr, ver);
char *caps_str = caps_gstr->str;
g_string_free(caps_gstr, FALSE);
return caps_str;
}
DataForm *
stanza_create_form(xmpp_stanza_t * const stanza)
{
DataForm *result = NULL;
xmpp_stanza_t *child = xmpp_stanza_get_children(stanza);
if (child != NULL) {
result = malloc(sizeof(struct data_form_t));
result->form_type = NULL;
result->fields = NULL;
}
//handle fields
while (child != NULL) {
char *var = xmpp_stanza_get_attribute(child, "var");
// handle FORM_TYPE
if (g_strcmp0(var, "FORM_TYPE")) {
xmpp_stanza_t *value = xmpp_stanza_get_child_by_name(child, "value");
char *value_text = xmpp_stanza_get_text(value);
result->form_type = strdup(value_text);
// handle regular fields
} else {
FormField *field = malloc(sizeof(struct form_field_t));
field->var = strdup(var);
field->values = NULL;
xmpp_stanza_t *value = xmpp_stanza_get_children(child);
// handle values
while (value != NULL) {
char *text = xmpp_stanza_get_text(value);
field->values = g_slist_insert_sorted(field->values, strdup(text), (GCompareFunc)octet_compare);
value = xmpp_stanza_get_next(value);
}
result->fields = g_slist_insert_sorted(result->fields, field, (GCompareFunc)_field_compare);
}
child = xmpp_stanza_get_next(child);
}
return result;
}
void
stanza_destroy_form(DataForm *form)
{
if (form != NULL) {
FREE_SET_NULL(form->form_type);
if (form->fields != NULL) {
GSList *curr_field = form->fields;
while (curr_field != NULL) {
FormField *field = curr_field->data;
FREE_SET_NULL(field->var);
if ((field->values) != NULL) {
g_slist_free_full(field->values, free);
}
}
}
form = NULL;
}
}
static int
_field_compare(FormField *f1, FormField *f2)
{
return octet_compare((unsigned char *)f1->var, (unsigned char *)f2->var);
}
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