file:///srv/subversion/repos/asterisk/trunk
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r378410 | mjordan | 2013-01-03 09:37:31 -0600 (Thu, 03 Jan 2013) | 13 lines
Prevent crashes in res_xmpp when receiving large messages
Similar to r378287, res_xmpp was marshaling data read from an external source
onto the stack. For a sufficiently large message, this could cause a stack
overflow. This patch modifies res_xmpp in a similar fashion to res_jabber by
removing the stack allocation, as it was unnecessary.
(issue ASTERISK-20658)
Reported by: wdoekes
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Merged revisions 378409 from http://svn.asterisk.org/svn/asterisk/branches/11
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r378412 | file | 2013-01-03 09:40:21 -0600 (Thu, 03 Jan 2013) | 11 lines
Prevent exhaustion of system resources through exploitation of event cache
This patch changes res_xmpp to no longer cache events under certain circumstances.
(issue ASTERISK-20175)
Reported by: Russell Bryant, Leif Madsen, Joshua Colp
Tested by: kmoore
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Merged revisions 378411 from http://svn.asterisk.org/svn/asterisk/branches/11
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r378414 | tilghman | 2013-01-03 10:04:11 -0600 (Thu, 03 Jan 2013) | 11 lines
Add aliases to the Directory.
This is an interesting feature that allows additional strings to be used to
search the Directory, primarily intended to be used with nicknames, but could
be used with affiliations and the like. Because the name field is used in
more than one place (such as email notifications), it is important that these
additional strings not be placed in the name field, but be specified
separately.
Review: https://reviewboard.asterisk.org/r/2244/
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git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@378422
65c4cc65-6c06-0410-ace0-
fbb531ad65f3
argument will be used for the number of characters the user should enter.</para>
<argument name="n" required="true" />
</option>
+ <option name="a">
+ <para>Allow the caller to additionally enter an alias for a user in the
+ directory. This option must be specified in addition to the
+ <literal>f</literal>, <literal>l</literal>, or <literal>b</literal>
+ option.</para>
+ </option>
<option name="m">
<para>Instead of reading each name sequentially and asking for
confirmation, create a menu of up to 8 names.</para>
OPT_LISTBYEITHER = OPT_LISTBYFIRSTNAME | OPT_LISTBYLASTNAME,
OPT_PAUSE = (1 << 5),
OPT_NOANSWER = (1 << 6),
+ OPT_ALIAS = (1 << 7),
};
enum {
AST_APP_OPTION('v', OPT_FROMVOICEMAIL),
AST_APP_OPTION('m', OPT_SELECTFROMMENU),
AST_APP_OPTION('n', OPT_NOANSWER),
+ AST_APP_OPTION('a', OPT_ALIAS),
});
static int compare(const char *text, const char *template)
return 0;
}
+AST_THREADSTORAGE(commonbuf);
+
static struct ast_config *realtime_directory(char *context)
{
struct ast_config *cfg;
char *mailbox;
const char *fullname;
const char *hidefromdir, *searchcontexts = NULL;
- char tmp[100];
struct ast_flags config_flags = { 0 };
+ struct ast_str *tmp = ast_str_thread_get(&commonbuf, 100);
+
+ if (!tmp) {
+ return NULL;
+ }
/* Load flat file config. */
cfg = ast_config_load(VOICEMAIL_CONFIG, config_flags);
mailbox = NULL;
while ( (mailbox = ast_category_browse(rtdata, mailbox)) ) {
+ struct ast_variable *alias;
const char *ctx = ast_variable_retrieve(rtdata, mailbox, "context");
fullname = ast_variable_retrieve(rtdata, mailbox, "fullname");
/* Skip hidden */
continue;
}
- snprintf(tmp, sizeof(tmp), "no-password,%s", S_OR(fullname, ""));
+ ast_str_set(&tmp, 0, "no-password,%s", S_OR(fullname, ""));
+ if (ast_variable_retrieve(rtdata, mailbox, "alias")) {
+ for (alias = ast_variable_browse(rtdata, mailbox); alias; alias = alias->next) {
+ if (!strcasecmp(alias->name, "alias")) {
+ ast_str_append(&tmp, 0, "|alias=%s", alias->value);
+ }
+ }
+ }
/* Does the context exist within the config file? If not, make one */
if (!(cat = ast_category_get(cfg, ctx))) {
ast_category_append(cfg, cat);
}
- if ((var = ast_variable_new(mailbox, tmp, ""))) {
+ if ((var = ast_variable_new(mailbox, ast_str_buffer(tmp), ""))) {
ast_variable_append(cat, var);
} else {
ast_log(LOG_WARNING, "Out of memory adding mailbox '%s'\n", mailbox);
static int search_directory_sub(const char *context, struct ast_config *vmcfg, struct ast_config *ucfg, const char *ext, struct ast_flags flags, itemlist *alist)
{
struct ast_variable *v;
- char buf[AST_MAX_EXTENSION + 1], *pos, *bufptr, *cat;
+ struct ast_str *buf = ast_str_thread_get(&commonbuf, 100);
+ char *pos, *bufptr, *cat, *alias;
struct directory_item *item;
int res;
+ if (!buf) {
+ return -1;
+ }
+
ast_debug(2, "Pattern: %s\n", ext);
for (v = ast_variable_browse(vmcfg, context); v; v = v->next) {
/* Ignore hidden */
- if (strcasestr(v->value, "hidefromdir=yes"))
+ if (strcasestr(v->value, "hidefromdir=yes")) {
continue;
+ }
- ast_copy_string(buf, v->value, sizeof(buf));
- bufptr = buf;
+ ast_str_set(&buf, 0, "%s", v->value);
+ bufptr = ast_str_buffer(buf);
/* password,Full Name,email,pager,options */
strsep(&bufptr, ",");
if (!res && ast_test_flag(&flags, OPT_LISTBYFIRSTNAME)) {
res = check_match(&item, context, pos, v->name, ext, 1 /* use_first_name */);
}
+ if (!res && ast_test_flag(&flags, OPT_ALIAS) && (alias = strcasestr(bufptr, "alias="))) {
+ char *a;
+ ast_debug(1, "Found alias: %s\n", alias);
+ while ((a = strsep(&alias, "|"))) {
+ if (!strncasecmp(a, "alias=", 6)) {
+ if ((res = check_match(&item, context, a + 6, v->name, ext, 1))) {
+ break;
+ }
+ }
+ }
+ }
- if (!res)
+ if (!res) {
continue;
- else if (res < 0)
+ } else if (res < 0) {
return -1;
+ }
AST_LIST_INSERT_TAIL(alist, item, entry);
}
if (ucfg) {
for (cat = ast_category_browse(ucfg, NULL); cat ; cat = ast_category_browse(ucfg, cat)) {
const char *position;
- if (!strcasecmp(cat, "general"))
+
+ if (!strcasecmp(cat, "general")) {
continue;
- if (!ast_true(ast_config_option(ucfg, cat, "hasdirectory")))
+ }
+ if (!ast_true(ast_config_option(ucfg, cat, "hasdirectory"))) {
continue;
+ }
/* Find all candidate extensions */
- position = ast_variable_retrieve(ucfg, cat, "fullname");
- if (!position)
+ if (!(position = ast_variable_retrieve(ucfg, cat, "fullname"))) {
continue;
+ }
res = 0;
if (ast_test_flag(&flags, OPT_LISTBYLASTNAME)) {
if (!res && ast_test_flag(&flags, OPT_LISTBYFIRSTNAME)) {
res = check_match(&item, context, position, cat, ext, 1 /* use_first_name */);
}
+ if (!res && ast_test_flag(&flags, OPT_ALIAS)) {
+ struct ast_variable *alias;
+ for (alias = ast_variable_browse(ucfg, cat); alias; alias = alias->next) {
+ if (!strcasecmp(v->name, "alias") && (res = check_match(&item, context, v->value, cat, ext, 1))) {
+ break;
+ }
+ }
+ }
- if (!res)
+ if (!res) {
continue;
- else if (res < 0)
+ } else if (res < 0) {
return -1;
+ }
AST_LIST_INSERT_TAIL(alist, item, entry);
}
; This is intended for use with users who wish to receive their
; voicemail ONLY by email. Note: "deletevoicemail" is provided as an
; equivalent option for Realtime configuration.
+; alias=Bongo ; Use this additional string for comparison while looking
+ ; for a match in the Directory application. This option
+ ; may be specified multiple times to specify additional
+ ; strings [per-mailbox only]
; volgain=0.0 ; Emails bearing the voicemail may arrive in a volume too
; quiet to be heard. This parameter allows you to specify how
; much gain to add to the message when sending a voicemail.
password CHAR(80) NOT NULL,
-- Used in email and for Directory app
fullname CHAR(80),
+ -- Used for Directory app
+ alias CHAR(80),
-- Email address (will get sound file if attach=yes)
email CHAR(80),
-- Email address (won't get sound file)
* \return iks *
*/
static iks* xmpp_pubsub_build_publish_skeleton(struct ast_xmpp_client *client, const char *node,
- const char *event_type)
+ const char *event_type, unsigned int cachable)
{
RAII_VAR(struct xmpp_config *, cfg, ao2_global_obj_ref(globals), ao2_cleanup);
iks *request, *pubsub, *publish, *item;
item = iks_insert(publish, "item");
iks_insert_attrib(item, "id", node);
+ if (cachable == AST_DEVSTATE_NOT_CACHABLE) {
+ iks *options, *x, *field_form_type, *field_persist;
+
+ options = iks_insert(pubsub, "publish-options");
+ x = iks_insert(options, "x");
+ iks_insert_attrib(x, "xmlns", "jabber:x:data");
+ iks_insert_attrib(x, "type", "submit");
+ field_form_type = iks_insert(x, "field");
+ iks_insert_attrib(field_form_type, "var", "FORM_TYPE");
+ iks_insert_attrib(field_form_type, "type", "hidden");
+ iks_insert_cdata(iks_insert(field_form_type, "value"), "http://jabber.org/protocol/pubsub#publish-options", 0);
+ field_persist = iks_insert(x, "field");
+ iks_insert_attrib(field_persist, "var", "pubsub#persist_items");
+ iks_insert_cdata(iks_insert(field_persist, "value"), "0", 1);
+ }
+
return item;
}
snprintf(full_mailbox, sizeof(full_mailbox), "%s@%s", mailbox, context);
- if (!(request = xmpp_pubsub_build_publish_skeleton(client, full_mailbox, "message_waiting"))) {
+ if (!(request = xmpp_pubsub_build_publish_skeleton(client, full_mailbox, "message_waiting", AST_DEVSTATE_CACHABLE))) {
return;
}
* \return void
*/
static void xmpp_pubsub_publish_device_state(struct ast_xmpp_client *client, const char *device,
- const char *device_state)
+ const char *device_state, unsigned int cachable)
{
RAII_VAR(struct xmpp_config *, cfg, ao2_global_obj_ref(globals), ao2_cleanup);
iks *request, *state;
- char eid_str[20];
+ char eid_str[20], cachable_str[2];
- if (!cfg || !cfg->global || !(request = xmpp_pubsub_build_publish_skeleton(client, device, "device_state"))) {
+ if (!cfg || !cfg->global || !(request = xmpp_pubsub_build_publish_skeleton(client, device, "device_state", cachable))) {
return;
}
state = iks_insert(request, "state");
iks_insert_attrib(state, "xmlns", "http://asterisk.org");
iks_insert_attrib(state, "eid", eid_str);
+ snprintf(cachable_str, sizeof(cachable_str), "%u", cachable);
+ iks_insert_attrib(state, "cachable", cachable_str);
iks_insert_cdata(state, device_state, strlen(device_state));
ast_xmpp_client_send(client, iks_root(request));
iks_delete(request);
{
struct ast_xmpp_client *client = data;
const char *device, *device_state;
+ unsigned int cachable;
if (ast_eid_cmp(&ast_eid_default, ast_event_get_ie_raw(ast_event, AST_EVENT_IE_EID))) {
/* If the event didn't originate from this server, don't send it back out. */
device = ast_event_get_ie_str(ast_event, AST_EVENT_IE_DEVICE);
device_state = ast_devstate_str(ast_event_get_ie_uint(ast_event, AST_EVENT_IE_STATE));
- xmpp_pubsub_publish_device_state(client, device, device_state);
+ cachable = ast_event_get_ie_uint(ast_event, AST_EVENT_IE_CACHABLE);
+ xmpp_pubsub_publish_device_state(client, device, device_state, cachable);
}
/*!
*/
static int xmpp_pubsub_handle_event(void *data, ikspak *pak)
{
- char *item_id, *device_state, *context;
+ char *item_id, *device_state, *context, *cachable_str;
int oldmsgs, newmsgs;
iks *item, *item_content;
struct ast_eid pubsub_eid;
struct ast_event *event;
+ unsigned int cachable = AST_DEVSTATE_CACHABLE;
item = iks_find(iks_find(iks_find(pak->x, "event"), "items"), "item");
if (!item) {
ast_log(LOG_ERROR, "Could not parse incoming PubSub event\n");
}
if (!strcasecmp(iks_name(item_content), "state")) {
device_state = iks_find_cdata(item, "state");
+ if ((cachable_str = iks_find_cdata(item, "cachable"))) {
+ sscanf(cachable_str, "%30d", &cachable);
+ }
if (!(event = ast_event_new(AST_EVENT_DEVICE_STATE_CHANGE,
AST_EVENT_IE_DEVICE, AST_EVENT_IE_PLTYPE_STR, item_id, AST_EVENT_IE_STATE,
AST_EVENT_IE_PLTYPE_UINT, ast_devstate_val(device_state), AST_EVENT_IE_EID,
iks_name(item_content));
return IKS_FILTER_EAT;
}
- ast_event_queue_and_cache(event);
+
+ if (cachable == AST_DEVSTATE_CACHABLE) {
+ ast_event_queue_and_cache(event);
+ } else {
+ ast_event_queue(event);
+ }
+
return IKS_FILTER_EAT;
}
{
RAII_VAR(struct xmpp_config *, cfg, ao2_global_obj_ref(globals), ao2_cleanup);
RAII_VAR(struct ast_xmpp_client_config *, clientcfg, NULL, ao2_cleanup);
- char *aux = NULL, *parse = NULL;
+ char *parse = NULL;
int timeout, jidlen, resourcelen, found = 0;
struct timeval start;
long diff = 0;
continue;
}
found = 1;
- aux = ast_strdupa(message->message);
+ ast_copy_string(buf, message->message, buflen);
AST_LIST_REMOVE_CURRENT(list);
xmpp_message_destroy(message);
break;
ast_log(LOG_NOTICE, "Timed out : no message received from %s\n", args.jid);
return -1;
}
- ast_copy_string(buf, aux, buflen);
return 0;
}