1265 lines
31 KiB
C
1265 lines
31 KiB
C
|
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Kevin Harwell <kharwell@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_pjsip</depend>
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include <pjsip.h>
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#include <pjsip_ua.h>
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#include "asterisk/cli.h"
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#include "asterisk/config.h"
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#include "asterisk/manager.h"
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#include "asterisk/module.h"
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#include "asterisk/pbx.h"
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#include "asterisk/res_pjsip.h"
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#include "asterisk/res_pjsip_session.h"
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#include "asterisk/sorcery.h"
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/*** DOCUMENTATION
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<manager name="PJSIPNotify" language="en_US">
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<synopsis>
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Send a NOTIFY to either an endpoint, an arbitrary URI, or inside a SIP dialog.
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</synopsis>
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<syntax>
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<xi:include xpointer="xpointer(/docs/manager[@name='Login']/syntax/parameter[@name='ActionID'])" />
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<parameter name="Endpoint" required="false">
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<para>The endpoint to which to send the NOTIFY.</para>
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</parameter>
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<parameter name="URI" required="false">
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<para>Abritrary URI to which to send the NOTIFY.</para>
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</parameter>
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<parameter name="channel" required="false">
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<para>Channel name to send the NOTIFY. Must be a PJSIP channel.</para>
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</parameter>
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<parameter name="Variable" required="true">
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<para>Appends variables as headers/content to the NOTIFY. If the variable is
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named <literal>Content</literal>, then the value will compose the body
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of the message if another variable sets <literal>Content-Type</literal>.
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<replaceable>name</replaceable>=<replaceable>value</replaceable></para>
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</parameter>
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</syntax>
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<description>
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<para>Sends a NOTIFY to an endpoint, an arbitrary URI, or inside a SIP dialog.</para>
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<para>All parameters for this event must be specified in the body of this
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request via multiple <literal>Variable: name=value</literal> sequences.</para>
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<note><para>One (and only one) of <literal>Endpoint</literal>,
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<literal>URI</literal>, or <literal>Channel</literal> must be specified.
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If <literal>URI</literal> is used, the default outbound endpoint will be used
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to send the message. If the default outbound endpoint isn't configured, this command
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can not send to an arbitrary URI.</para></note>
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</description>
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</manager>
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<configInfo name="res_pjsip_notify" language="en_US">
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<synopsis>Module that supports sending NOTIFY requests to endpoints from external sources</synopsis>
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<configFile name="pjsip_notify.conf">
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<configObject name="general">
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<synopsis>Unused, but reserved.</synopsis>
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</configObject>
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<configObject name="notify">
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<synopsis>Configuration of a NOTIFY request.</synopsis>
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<description>
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<para>Each key-value pair in a <literal>notify</literal>
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configuration section defines either a SIP header to send
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in the request or a line of content in the request message
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body. A key of <literal>Content</literal> is treated
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as part of the message body and is appended in sequential
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order; any other header is treated as part of the SIP
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request.</para>
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</description>
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<configOption name="">
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<synopsis>A key/value pair to add to a NOTIFY request.</synopsis>
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<description>
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<para>If the key is <literal>Content</literal>,
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it will be treated as part of the message body. Otherwise,
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it will be added as a header in the NOTIFY request.</para>
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<para>The following headers are reserved and cannot be
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specified:</para>
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<enumlist>
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<enum name="Call-ID" />
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<enum name="Contact" />
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<enum name="CSeq" />
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<enum name="To" />
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<enum name="From" />
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<enum name="Record-Route" />
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<enum name="Route" />
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<enum name="Via" />
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</enumlist>
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</description>
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</configOption>
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</configObject>
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</configFile>
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</configInfo>
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***/
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#define CONTENT_TYPE_SIZE 64
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#define CONTENT_SIZE 512
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/*!
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* \internal
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* \brief The configuration file containing NOTIFY payload types to send.
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*/
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static const char notify_config[] = "pjsip_notify.conf";
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struct notify_option_item {
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const char *name;
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const char *value;
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char buf[0];
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};
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struct notify_option {
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/*! Contains header and/or content information */
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struct ao2_container *items;
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/*! The name of the notify option */
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char name[0];
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};
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static int notify_option_hash(const void *obj, int flags)
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{
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const struct notify_option *option = obj;
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return ast_str_case_hash(flags & OBJ_KEY ? obj : option->name);
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}
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static int notify_option_cmp(void *obj, void *arg, int flags)
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{
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struct notify_option *option1 = obj;
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struct notify_option *option2 = arg;
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const char *key = flags & OBJ_KEY ? arg : option2->name;
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return strcasecmp(option1->name, key) ? 0 : CMP_MATCH;
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}
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static void notify_option_destroy(void *obj)
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{
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struct notify_option *option = obj;
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ao2_cleanup(option->items);
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}
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static void *notify_option_alloc(const char *category)
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{
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int category_size = strlen(category) + 1;
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struct notify_option *option = ao2_alloc(
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sizeof(*option) + category_size, notify_option_destroy);
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if (!option) {
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return NULL;
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}
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ast_copy_string(option->name, category, category_size);
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if (!(option->items = ao2_container_alloc_list(
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AO2_ALLOC_OPT_LOCK_NOLOCK,
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AO2_CONTAINER_ALLOC_OPT_DUPS_ALLOW, NULL, NULL))) {
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ao2_cleanup(option);
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return NULL;
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}
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return option;
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}
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static void *notify_option_find(struct ao2_container *container, const char *category)
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{
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return ao2_find(container, category, OBJ_KEY);
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}
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static int notify_option_handler(const struct aco_option *opt,
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struct ast_variable *var, void *obj)
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{
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struct notify_option *option = obj;
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int name_size = strlen(var->name) + 1;
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int value_size = strlen(var->value) + 1;
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RAII_VAR(struct notify_option_item *, item,
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ao2_alloc(sizeof(*item) + name_size + value_size,
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NULL), ao2_cleanup);
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item->name = item->buf;
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item->value = item->buf + name_size;
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ast_copy_string(item->buf, var->name, name_size);
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ast_copy_string(item->buf + name_size, var->value, value_size);
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if (!ao2_link(option->items, item)) {
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return -1;
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}
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return 0;
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}
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struct notify_cfg {
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struct ao2_container *notify_options;
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};
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static void notify_cfg_destroy(void *obj)
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{
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struct notify_cfg *cfg = obj;
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ao2_cleanup(cfg->notify_options);
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}
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static void *notify_cfg_alloc(void)
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{
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struct notify_cfg *cfg;
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if (!(cfg = ao2_alloc(sizeof(*cfg), notify_cfg_destroy))) {
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return NULL;
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}
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cfg->notify_options = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_NOLOCK, 0,
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20, notify_option_hash, NULL, notify_option_cmp);
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if (!cfg->notify_options) {
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ao2_cleanup(cfg);
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return NULL;
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}
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return cfg;
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}
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static struct aco_type notify_option = {
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.type = ACO_ITEM,
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.name = "notify",
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.category_match = ACO_BLACKLIST_EXACT,
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.category = "general",
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.item_offset = offsetof(struct notify_cfg, notify_options),
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.item_alloc = notify_option_alloc,
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.item_find = notify_option_find
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};
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static struct aco_type *notify_options[] = ACO_TYPES(¬ify_option);
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static struct aco_file module_conf = {
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.filename = notify_config,
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.types = ACO_TYPES(¬ify_option),
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};
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AO2_GLOBAL_OBJ_STATIC(globals);
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CONFIG_INFO_STANDARD(notify_cfg, globals, notify_cfg_alloc,
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.files = ACO_FILES(&module_conf)
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);
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/*!
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* \internal
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* \brief Structure to hold task data for notifications.
|
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*/
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struct notify_data {
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/*! The endpoint being notified */
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struct ast_sip_endpoint *endpoint;
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/*! The info of headers, types and content */
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void *info;
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/*! Function to help build notify request */
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void (*build_notify)(pjsip_tx_data *, void *);
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};
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/*!
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* \internal
|
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* \brief Destroy the notify CLI data releasing any resources.
|
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*/
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static void notify_cli_data_destroy(void *obj)
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{
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struct notify_data *data = obj;
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|
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ao2_cleanup(data->endpoint);
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ao2_cleanup(data->info);
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}
|
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|
|
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|
/*!
|
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|
* \internal
|
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|
* \brief Structure to hold task data for notifications (URI variant)
|
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|
*/
|
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struct notify_uri_data {
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char *uri;
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void *info;
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void (*build_notify)(pjsip_tx_data *, void *);
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};
|
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|
|
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|
/*!
|
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|
* \internal
|
||
|
* \brief Structure to hold task data for notifications (channel variant)
|
||
|
*/
|
||
|
struct notify_channel_data {
|
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struct ast_sip_session *session;
|
||
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void *info;
|
||
|
void (*build_notify)(pjsip_tx_data *, void *);
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|
};
|
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|
|
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static void notify_cli_uri_data_destroy(void *obj)
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{
|
||
|
struct notify_uri_data *data = obj;
|
||
|
|
||
|
ast_free(data->uri);
|
||
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ao2_cleanup(data->info);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Destroy the notify CLI data releasing any resources (URI variant)
|
||
|
*/
|
||
|
static void build_cli_notify(pjsip_tx_data *tdata, void *info);
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Construct a notify data object for CLI.
|
||
|
*/
|
||
|
static struct notify_data* notify_cli_data_create(
|
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struct ast_sip_endpoint *endpoint, void *info)
|
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{
|
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struct notify_data *data = ao2_alloc(sizeof(*data),
|
||
|
notify_cli_data_destroy);
|
||
|
if (!data) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->endpoint = endpoint;
|
||
|
ao2_ref(data->endpoint, +1);
|
||
|
|
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data->info = info;
|
||
|
ao2_ref(data->info, +1);
|
||
|
|
||
|
data->build_notify = build_cli_notify;
|
||
|
|
||
|
return data;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Construct a notify URI data object for CLI.
|
||
|
*/
|
||
|
static struct notify_uri_data* notify_cli_uri_data_create(
|
||
|
const char *uri, void *info)
|
||
|
{
|
||
|
struct notify_uri_data *data = ao2_alloc(sizeof(*data),
|
||
|
notify_cli_uri_data_destroy);
|
||
|
|
||
|
if (!data) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->uri = ast_strdup(uri);
|
||
|
if (!data->uri) {
|
||
|
ao2_ref(data, -1);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->info = info;
|
||
|
ao2_ref(data->info, +1);
|
||
|
|
||
|
data->build_notify = build_cli_notify;
|
||
|
|
||
|
return data;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Destroy the notify AMI data releasing any resources.
|
||
|
*/
|
||
|
static void notify_ami_data_destroy(void *obj)
|
||
|
{
|
||
|
struct notify_data *data = obj;
|
||
|
struct ast_variable *info = data->info;
|
||
|
|
||
|
ao2_cleanup(data->endpoint);
|
||
|
ast_variables_destroy(info);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Destroy the notify AMI URI data releasing any resources.
|
||
|
*/
|
||
|
static void notify_ami_uri_data_destroy(void *obj)
|
||
|
{
|
||
|
struct notify_uri_data *data = obj;
|
||
|
struct ast_variable *info = data->info;
|
||
|
|
||
|
ast_free(data->uri);
|
||
|
ast_variables_destroy(info);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Destroy the notify AMI channel data releasing any resources.
|
||
|
*/
|
||
|
static void notify_ami_channel_data_destroy(void *obj)
|
||
|
{
|
||
|
struct notify_channel_data *data = obj;
|
||
|
struct ast_variable *info = data->info;
|
||
|
|
||
|
ao2_cleanup(data->session);
|
||
|
ast_variables_destroy(info);
|
||
|
}
|
||
|
|
||
|
static void build_ami_notify(pjsip_tx_data *tdata, void *info);
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Construct a notify data object for AMI.
|
||
|
*/
|
||
|
static struct notify_data* notify_ami_data_create(
|
||
|
struct ast_sip_endpoint *endpoint, void *info)
|
||
|
{
|
||
|
struct notify_data *data = ao2_alloc(sizeof(*data),
|
||
|
notify_ami_data_destroy);
|
||
|
if (!data) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->endpoint = endpoint;
|
||
|
ao2_ref(data->endpoint, +1);
|
||
|
|
||
|
data->info = info;
|
||
|
data->build_notify = build_ami_notify;
|
||
|
|
||
|
return data;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Construct a notify URI data object for AMI.
|
||
|
*/
|
||
|
static struct notify_uri_data* notify_ami_uri_data_create(
|
||
|
const char *uri, void *info)
|
||
|
{
|
||
|
struct notify_uri_data *data = ao2_alloc(sizeof(*data),
|
||
|
notify_ami_uri_data_destroy);
|
||
|
if (!data) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->uri = ast_strdup(uri);
|
||
|
if (!data->uri) {
|
||
|
ao2_ref(data, -1);
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->info = info;
|
||
|
data->build_notify = build_ami_notify;
|
||
|
|
||
|
return data;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Construct a notify channel data object for AMI.
|
||
|
*/
|
||
|
static struct notify_channel_data *notify_ami_channel_data_create(
|
||
|
struct ast_sip_session *session, void *info)
|
||
|
{
|
||
|
struct notify_channel_data *data;
|
||
|
|
||
|
data = ao2_alloc_options(sizeof(*data), notify_ami_channel_data_destroy,
|
||
|
AO2_ALLOC_OPT_LOCK_NOLOCK);
|
||
|
if (!data) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
data->session = session;
|
||
|
data->info = info;
|
||
|
data->build_notify = build_ami_notify;
|
||
|
|
||
|
return data;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Checks if the given header name is not allowed.
|
||
|
*
|
||
|
* \details Some headers are not allowed to be set by the user within the
|
||
|
* scope of a NOTIFY request. If the given var header name is
|
||
|
* found in the "not allowed" list then return true.
|
||
|
*/
|
||
|
static int not_allowed(const char *name)
|
||
|
{
|
||
|
int i;
|
||
|
static const char *names[] = {
|
||
|
"Call-ID",
|
||
|
"Contact",
|
||
|
"CSeq",
|
||
|
"To",
|
||
|
"From",
|
||
|
"Record-Route",
|
||
|
"Route",
|
||
|
"Request-URI",
|
||
|
"Via",
|
||
|
};
|
||
|
|
||
|
for (i = 0; i < ARRAY_LEN(names); ++i) {
|
||
|
if (!strcasecmp(name, names[i])) {
|
||
|
return 1;
|
||
|
}
|
||
|
}
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Check if the given header can be added to a message more than once.
|
||
|
*/
|
||
|
static int multiple_headers_allowed(const char *name)
|
||
|
{
|
||
|
/* This can be extended to include additional headers */
|
||
|
return strcasecmp("Event", name);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief If a content type was specified add it and the content body to the
|
||
|
* NOTIFY request.
|
||
|
*/
|
||
|
static void build_notify_body(pjsip_tx_data *tdata, struct ast_str *content_type,
|
||
|
struct ast_str *content)
|
||
|
{
|
||
|
if (content_type) {
|
||
|
char *p;
|
||
|
struct ast_sip_body body;
|
||
|
|
||
|
if (content) {
|
||
|
body.body_text = ast_str_buffer(content);
|
||
|
}
|
||
|
|
||
|
body.type = ast_str_buffer(content_type);
|
||
|
if ((p = strchr(body.type, '/'))) {
|
||
|
*p++ = '\0';
|
||
|
body.subtype = p;
|
||
|
}
|
||
|
ast_sip_add_body(tdata, &body);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Build the NOTIFY request adding content or header info.
|
||
|
*/
|
||
|
static void build_notify(pjsip_tx_data *tdata, const char *name, const char *value,
|
||
|
struct ast_str **content_type, struct ast_str **content)
|
||
|
{
|
||
|
if (not_allowed(name)) {
|
||
|
ast_log(LOG_WARNING, "Cannot specify %s header, "
|
||
|
"ignoring\n", name);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (!strcasecmp(name, "Content-type")) {
|
||
|
if (!(*content_type)) {
|
||
|
*content_type = ast_str_create(CONTENT_TYPE_SIZE);
|
||
|
}
|
||
|
ast_str_set(content_type, 0,"%s", value);
|
||
|
} else if (!strcasecmp(name, "Content")) {
|
||
|
if (!(*content)) {
|
||
|
*content = ast_str_create(CONTENT_SIZE);
|
||
|
}
|
||
|
|
||
|
if (ast_str_strlen(*content)) {
|
||
|
ast_str_append(content, 0, "\r\n");
|
||
|
}
|
||
|
ast_str_append(content, 0, "%s", value);
|
||
|
} else {
|
||
|
/* See if there is an existing one */
|
||
|
if (!multiple_headers_allowed(name)) {
|
||
|
pj_str_t hdr_name;
|
||
|
pj_cstr(&hdr_name, name);
|
||
|
|
||
|
if (pjsip_msg_find_hdr_by_name(tdata->msg, &hdr_name, NULL)) {
|
||
|
ast_log(LOG_ERROR, "Only one '%s' header can be added to a NOTIFY, "
|
||
|
"ignoring \"%s: %s\"\n", name, name, value);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
ast_sip_add_header(tdata, name, value);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Build the NOTIFY request from CLI info adding header and content
|
||
|
* when specified.
|
||
|
*/
|
||
|
static void build_cli_notify(pjsip_tx_data *tdata, void *info)
|
||
|
{
|
||
|
struct notify_option *option = info;
|
||
|
RAII_VAR(struct ast_str *, content_type, NULL, ast_free);
|
||
|
RAII_VAR(struct ast_str *, content, NULL, ast_free);
|
||
|
|
||
|
struct notify_option_item *item;
|
||
|
struct ao2_iterator i = ao2_iterator_init(option->items, 0);
|
||
|
|
||
|
while ((item = ao2_iterator_next(&i))) {
|
||
|
build_notify(tdata, item->name, item->value,
|
||
|
&content_type, &content);
|
||
|
ao2_cleanup(item);
|
||
|
}
|
||
|
ao2_iterator_destroy(&i);
|
||
|
|
||
|
build_notify_body(tdata, content_type, content);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Build the NOTIFY request from AMI info adding header and content
|
||
|
* when specified.
|
||
|
*/
|
||
|
static void build_ami_notify(pjsip_tx_data *tdata, void *info)
|
||
|
{
|
||
|
struct ast_variable *vars = info;
|
||
|
RAII_VAR(struct ast_str *, content_type, NULL, ast_free);
|
||
|
RAII_VAR(struct ast_str *, content, NULL, ast_free);
|
||
|
struct ast_variable *i;
|
||
|
|
||
|
for (i = vars; i; i = i->next) {
|
||
|
if (!strcasecmp(i->name, "Content-Length")) {
|
||
|
ast_log(LOG_NOTICE, "It is not necessary to specify Content-Length, ignoring.\n");
|
||
|
continue;
|
||
|
}
|
||
|
build_notify(tdata, i->name, i->value,
|
||
|
&content_type, &content);
|
||
|
}
|
||
|
|
||
|
build_notify_body(tdata, content_type, content);
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Build and send a NOTIFY request to a contact.
|
||
|
*/
|
||
|
static int notify_contact(void *obj, void *arg, int flags)
|
||
|
{
|
||
|
struct ast_sip_contact *contact = obj;
|
||
|
struct notify_data *data = arg;
|
||
|
pjsip_tx_data *tdata;
|
||
|
|
||
|
if (ast_sip_create_request("NOTIFY", NULL, data->endpoint,
|
||
|
NULL, contact, &tdata)) {
|
||
|
ast_log(LOG_WARNING, "SIP NOTIFY - Unable to create request for "
|
||
|
"contact %s\n", contact->uri);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
ast_sip_add_header(tdata, "Subscription-State", "terminated");
|
||
|
data->build_notify(tdata, data->info);
|
||
|
|
||
|
if (ast_sip_send_request(tdata, NULL, data->endpoint, NULL, NULL)) {
|
||
|
ast_log(LOG_ERROR, "SIP NOTIFY - Unable to send request for "
|
||
|
"contact %s\n", contact->uri);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a NOTIFY request to the endpoint.
|
||
|
*
|
||
|
* \details Iterates over an endpoint's AORs sending a NOTIFY request
|
||
|
* with the appropriate payload information to each contact.
|
||
|
*/
|
||
|
static int notify_endpoint(void *obj)
|
||
|
{
|
||
|
RAII_VAR(struct notify_data *, data, obj, ao2_cleanup);
|
||
|
char *aor_name, *aors;
|
||
|
|
||
|
if (ast_strlen_zero(data->endpoint->aors)) {
|
||
|
ast_log(LOG_WARNING, "Unable to NOTIFY - "
|
||
|
"endpoint has no configured AORs\n");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
aors = ast_strdupa(data->endpoint->aors);
|
||
|
|
||
|
while ((aor_name = ast_strip(strsep(&aors, ",")))) {
|
||
|
RAII_VAR(struct ast_sip_aor *, aor,
|
||
|
ast_sip_location_retrieve_aor(aor_name), ao2_cleanup);
|
||
|
RAII_VAR(struct ao2_container *, contacts, NULL, ao2_cleanup);
|
||
|
|
||
|
if (!aor || !(contacts = ast_sip_location_retrieve_aor_contacts(aor))) {
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
ao2_callback(contacts, OBJ_NODATA, notify_contact, data);
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a notify request to the URI.
|
||
|
*/
|
||
|
static int notify_uri(void *obj)
|
||
|
{
|
||
|
RAII_VAR(struct notify_uri_data *, data, obj, ao2_cleanup);
|
||
|
RAII_VAR(struct ast_sip_endpoint *, endpoint,
|
||
|
ast_sip_default_outbound_endpoint(), ao2_cleanup);
|
||
|
pjsip_tx_data *tdata;
|
||
|
|
||
|
if (!endpoint) {
|
||
|
ast_log(LOG_WARNING, "No default outbound endpoint set, can not send "
|
||
|
"NOTIFY requests to arbitrary URIs.\n");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (ast_strlen_zero(data->uri)) {
|
||
|
ast_log(LOG_WARNING, "Unable to NOTIFY - URI is blank.\n");
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
if (ast_sip_create_request("NOTIFY", NULL, endpoint,
|
||
|
data->uri, NULL, &tdata)) {
|
||
|
ast_log(LOG_WARNING, "SIP NOTIFY - Unable to create request for "
|
||
|
"uri %s\n", data->uri);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
ast_sip_add_header(tdata, "Subscription-State", "terminated");
|
||
|
|
||
|
data->build_notify(tdata, data->info);
|
||
|
|
||
|
if (ast_sip_send_request(tdata, NULL, endpoint, NULL, NULL)) {
|
||
|
ast_log(LOG_ERROR, "SIP NOTIFY - Unable to send request for "
|
||
|
"uri %s\n", data->uri);
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a notify request to a channel.
|
||
|
*/
|
||
|
static int notify_channel(void *obj)
|
||
|
{
|
||
|
RAII_VAR(struct notify_channel_data *, data, obj, ao2_cleanup);
|
||
|
pjsip_tx_data *tdata;
|
||
|
struct pjsip_dialog *dlg;
|
||
|
|
||
|
if (!data->session->channel
|
||
|
|| !data->session->inv_session
|
||
|
|| data->session->inv_session->state < PJSIP_INV_STATE_EARLY
|
||
|
|| data->session->inv_session->state == PJSIP_INV_STATE_DISCONNECTED) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
ast_debug(1, "Sending notify on channel %s\n", ast_channel_name(data->session->channel));
|
||
|
|
||
|
dlg = data->session->inv_session->dlg;
|
||
|
|
||
|
if (ast_sip_create_request("NOTIFY", dlg, NULL, NULL, NULL, &tdata)) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
ast_sip_add_header(tdata, "Subscription-State", "terminated");
|
||
|
data->build_notify(tdata, data->info);
|
||
|
|
||
|
if (ast_sip_send_request(tdata, dlg, NULL, NULL, NULL)) {
|
||
|
return -1;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
enum notify_result {
|
||
|
SUCCESS,
|
||
|
INVALID_ENDPOINT,
|
||
|
INVALID_CHANNEL,
|
||
|
ALLOC_ERROR,
|
||
|
TASK_PUSH_ERROR
|
||
|
};
|
||
|
|
||
|
typedef struct notify_data *(*task_data_create)(
|
||
|
struct ast_sip_endpoint *, void *info);
|
||
|
|
||
|
typedef struct notify_uri_data *(*task_uri_data_create)(
|
||
|
const char *uri, void *info);
|
||
|
|
||
|
typedef struct notify_channel_data *(*task_channel_data_create)(
|
||
|
struct ast_sip_session *session, void *info);
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a NOTIFY request to the endpoint within a threaded task.
|
||
|
*/
|
||
|
static enum notify_result push_notify(const char *endpoint_name, void *info,
|
||
|
task_data_create data_create)
|
||
|
{
|
||
|
RAII_VAR(struct ast_sip_endpoint *, endpoint, NULL, ao2_cleanup);
|
||
|
struct notify_data *data;
|
||
|
|
||
|
if (!(endpoint = ast_sorcery_retrieve_by_id(
|
||
|
ast_sip_get_sorcery(), "endpoint", endpoint_name))) {
|
||
|
return INVALID_ENDPOINT;
|
||
|
}
|
||
|
|
||
|
if (!(data = data_create(endpoint, info))) {
|
||
|
return ALLOC_ERROR;
|
||
|
}
|
||
|
|
||
|
if (ast_sip_push_task(NULL, notify_endpoint, data)) {
|
||
|
ao2_cleanup(data);
|
||
|
return TASK_PUSH_ERROR;
|
||
|
}
|
||
|
|
||
|
return SUCCESS;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a NOTIFY request to the URI within an threaded task.
|
||
|
*/
|
||
|
static enum notify_result push_notify_uri(const char *uri, void *info,
|
||
|
task_uri_data_create data_create)
|
||
|
{
|
||
|
struct notify_uri_data *data;
|
||
|
|
||
|
if (!(data = data_create(uri, info))) {
|
||
|
return ALLOC_ERROR;
|
||
|
}
|
||
|
|
||
|
if (ast_sip_push_task(NULL, notify_uri, data)) {
|
||
|
ao2_cleanup(data);
|
||
|
return TASK_PUSH_ERROR;
|
||
|
}
|
||
|
|
||
|
return SUCCESS;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Send a NOTIFY request in a channel within an threaded task.
|
||
|
*/
|
||
|
static enum notify_result push_notify_channel(const char *channel_name, void *info,
|
||
|
task_channel_data_create data_create)
|
||
|
{
|
||
|
struct notify_channel_data *data;
|
||
|
struct ast_channel *ch;
|
||
|
struct ast_sip_session *session;
|
||
|
struct ast_sip_channel_pvt *ch_pvt;
|
||
|
|
||
|
/* note: this increases the refcount of the channel */
|
||
|
ch = ast_channel_get_by_name(channel_name);
|
||
|
if (!ch) {
|
||
|
ast_debug(1, "No channel found with name %s", channel_name);
|
||
|
return INVALID_CHANNEL;
|
||
|
}
|
||
|
|
||
|
if (strcmp(ast_channel_tech(ch)->type, "PJSIP")) {
|
||
|
ast_log(LOG_WARNING, "Channel was a non-PJSIP channel: %s\n", channel_name);
|
||
|
ast_channel_unref(ch);
|
||
|
return INVALID_CHANNEL;
|
||
|
}
|
||
|
|
||
|
ast_channel_lock(ch);
|
||
|
ch_pvt = ast_channel_tech_pvt(ch);
|
||
|
session = ch_pvt->session;
|
||
|
|
||
|
if (!session || !session->inv_session
|
||
|
|| session->inv_session->state < PJSIP_INV_STATE_EARLY
|
||
|
|| session->inv_session->state == PJSIP_INV_STATE_DISCONNECTED) {
|
||
|
ast_debug(1, "No active session for channel %s\n", channel_name);
|
||
|
ast_channel_unlock(ch);
|
||
|
ast_channel_unref(ch);
|
||
|
return INVALID_CHANNEL;
|
||
|
}
|
||
|
|
||
|
ao2_ref(session, +1);
|
||
|
ast_channel_unlock(ch);
|
||
|
|
||
|
/* don't keep a reference to the channel, we've got a reference to the session */
|
||
|
ast_channel_unref(ch);
|
||
|
|
||
|
/*
|
||
|
* data_create will take ownership of the session,
|
||
|
* and take care of releasing the ref.
|
||
|
*/
|
||
|
data = data_create(session, info);
|
||
|
if (!data) {
|
||
|
ao2_ref(session, -1);
|
||
|
return ALLOC_ERROR;
|
||
|
}
|
||
|
|
||
|
if (ast_sip_push_task(session->serializer, notify_channel, data)) {
|
||
|
ao2_ref(data, -1);
|
||
|
return TASK_PUSH_ERROR;
|
||
|
}
|
||
|
|
||
|
return SUCCESS;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Do completion on the endpoint.
|
||
|
*/
|
||
|
static char *cli_complete_endpoint(const char *word)
|
||
|
{
|
||
|
int wordlen = strlen(word);
|
||
|
struct ao2_container * endpoints;
|
||
|
struct ast_sip_endpoint *endpoint;
|
||
|
struct ao2_iterator i;
|
||
|
|
||
|
endpoints = ast_sorcery_retrieve_by_prefix(ast_sip_get_sorcery(),
|
||
|
"endpoint", word, wordlen);
|
||
|
if (endpoints == NULL) {
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
i = ao2_iterator_init(endpoints, 0);
|
||
|
while ((endpoint = ao2_iterator_next(&i))) {
|
||
|
ast_cli_completion_add(
|
||
|
ast_strdup(ast_sorcery_object_get_id(endpoint)));
|
||
|
ao2_cleanup(endpoint);
|
||
|
}
|
||
|
ao2_iterator_destroy(&i);
|
||
|
|
||
|
ao2_ref(endpoints, -1);
|
||
|
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Do completion on the notify CLI command.
|
||
|
*/
|
||
|
static char *cli_complete_notify(const char *line, const char *word,
|
||
|
int pos, int state, int using_uri)
|
||
|
{
|
||
|
char *c = NULL;
|
||
|
|
||
|
if (pos == 3) {
|
||
|
int which = 0;
|
||
|
int wordlen = strlen(word);
|
||
|
|
||
|
RAII_VAR(struct notify_cfg *, cfg,
|
||
|
ao2_global_obj_ref(globals), ao2_cleanup);
|
||
|
struct notify_option *option;
|
||
|
|
||
|
/* do completion for notify type */
|
||
|
struct ao2_iterator i = ao2_iterator_init(cfg->notify_options, 0);
|
||
|
while ((option = ao2_iterator_next(&i))) {
|
||
|
if (!strncasecmp(word, option->name, wordlen) && ++which > state) {
|
||
|
c = ast_strdup(option->name);
|
||
|
}
|
||
|
|
||
|
ao2_cleanup(option);
|
||
|
if (c) {
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
ao2_iterator_destroy(&i);
|
||
|
return c;
|
||
|
}
|
||
|
|
||
|
if (pos == 4) {
|
||
|
int wordlen = strlen(word);
|
||
|
|
||
|
if (ast_strlen_zero(word)) {
|
||
|
if (state == 0) {
|
||
|
c = ast_strdup("endpoint");
|
||
|
} else if (state == 1) {
|
||
|
c = ast_strdup("uri");
|
||
|
}
|
||
|
} else if (state == 0) {
|
||
|
if (!strncasecmp(word, "endpoint", wordlen)) {
|
||
|
c = ast_strdup("endpoint");
|
||
|
} else if (!strncasecmp(word, "uri", wordlen)) {
|
||
|
c = ast_strdup("uri");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return c;
|
||
|
}
|
||
|
|
||
|
return pos > 4 && !using_uri ? cli_complete_endpoint(word) : NULL;
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief CLI command to send a SIP notify to an endpoint.
|
||
|
*
|
||
|
* \details Attempts to match the "type" given in the CLI command to a
|
||
|
* configured one. If found, sends a NOTIFY to the endpoint
|
||
|
* with the associated payload.
|
||
|
*/
|
||
|
static char *cli_notify(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
|
||
|
{
|
||
|
RAII_VAR(struct notify_cfg *, cfg, NULL, ao2_cleanup);
|
||
|
RAII_VAR(struct notify_option *, option, NULL, ao2_cleanup);
|
||
|
|
||
|
int i;
|
||
|
int using_uri = 0;
|
||
|
|
||
|
switch (cmd) {
|
||
|
case CLI_INIT:
|
||
|
e->command = "pjsip send notify";
|
||
|
e->usage =
|
||
|
"Usage: pjsip send notify <type> {endpoint|uri} <peer> [<peer>...]\n"
|
||
|
" Send a NOTIFY request to an endpoint\n"
|
||
|
" Message types are defined in pjsip_notify.conf\n";
|
||
|
return NULL;
|
||
|
case CLI_GENERATE:
|
||
|
if (a->argc > 4 && (!strcasecmp(a->argv[4], "uri"))) {
|
||
|
using_uri = 1;
|
||
|
}
|
||
|
|
||
|
return cli_complete_notify(a->line, a->word, a->pos, a->n, using_uri);
|
||
|
}
|
||
|
|
||
|
if (a->argc < 6) {
|
||
|
return CLI_SHOWUSAGE;
|
||
|
}
|
||
|
|
||
|
if (!strcasecmp(a->argv[4], "uri")) {
|
||
|
using_uri = 1;
|
||
|
} else if (strcasecmp(a->argv[4], "endpoint")) {
|
||
|
return CLI_SHOWUSAGE;
|
||
|
}
|
||
|
|
||
|
cfg = ao2_global_obj_ref(globals);
|
||
|
|
||
|
if (!(option = notify_option_find(cfg->notify_options, a->argv[3])))
|
||
|
{
|
||
|
ast_cli(a->fd, "Unable to find notify type '%s'\n",
|
||
|
a->argv[3]);
|
||
|
return CLI_FAILURE;
|
||
|
}
|
||
|
|
||
|
for (i = 5; i < a->argc; ++i) {
|
||
|
ast_cli(a->fd, "Sending NOTIFY of type '%s' to '%s'\n",
|
||
|
a->argv[3], a->argv[i]);
|
||
|
|
||
|
switch (using_uri ? push_notify_uri(a->argv[i], option, notify_cli_uri_data_create) :
|
||
|
push_notify(a->argv[i], option, notify_cli_data_create)) {
|
||
|
case INVALID_ENDPOINT:
|
||
|
ast_cli(a->fd, "Unable to retrieve endpoint %s\n",
|
||
|
a->argv[i]);
|
||
|
break;
|
||
|
case ALLOC_ERROR:
|
||
|
ast_cli(a->fd, "Unable to allocate NOTIFY task data\n");
|
||
|
return CLI_FAILURE;
|
||
|
case TASK_PUSH_ERROR:
|
||
|
ast_cli(a->fd, "Unable to push NOTIFY task\n");
|
||
|
return CLI_FAILURE;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return CLI_SUCCESS;
|
||
|
}
|
||
|
|
||
|
static struct ast_cli_entry cli_options[] = {
|
||
|
AST_CLI_DEFINE(cli_notify, "Send a NOTIFY request to a SIP endpoint")
|
||
|
};
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Completes SIPNotify AMI command in Endpoint mode.
|
||
|
*/
|
||
|
static void manager_notify_endpoint(struct mansession *s,
|
||
|
const struct message *m, const char *endpoint_name)
|
||
|
{
|
||
|
struct ast_variable *vars = astman_get_variables_order(m, ORDER_NATURAL);
|
||
|
|
||
|
if (!strncasecmp(endpoint_name, "sip/", 4)) {
|
||
|
endpoint_name += 4;
|
||
|
}
|
||
|
|
||
|
if (!strncasecmp(endpoint_name, "pjsip/", 6)) {
|
||
|
endpoint_name += 6;
|
||
|
}
|
||
|
|
||
|
switch (push_notify(endpoint_name, vars, notify_ami_data_create)) {
|
||
|
case INVALID_CHANNEL:
|
||
|
/* Shouldn't be possible. */
|
||
|
ast_assert(0);
|
||
|
break;
|
||
|
case INVALID_ENDPOINT:
|
||
|
ast_variables_destroy(vars);
|
||
|
astman_send_error_va(s, m, "Unable to retrieve endpoint %s",
|
||
|
endpoint_name);
|
||
|
break;
|
||
|
case ALLOC_ERROR:
|
||
|
ast_variables_destroy(vars);
|
||
|
astman_send_error(s, m, "Unable to allocate NOTIFY task data");
|
||
|
break;
|
||
|
case TASK_PUSH_ERROR:
|
||
|
/* Don't need to destroy vars since it is handled by cleanup in push_notify */
|
||
|
astman_send_error(s, m, "Unable to push NOTIFY task");
|
||
|
break;
|
||
|
case SUCCESS:
|
||
|
astman_send_ack(s, m, "NOTIFY sent");
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Completes SIPNotify AMI command in URI mode.
|
||
|
*/
|
||
|
static void manager_notify_uri(struct mansession *s,
|
||
|
const struct message *m, const char *uri)
|
||
|
{
|
||
|
struct ast_variable *vars = astman_get_variables_order(m, ORDER_NATURAL);
|
||
|
|
||
|
switch (push_notify_uri(uri, vars, notify_ami_uri_data_create)) {
|
||
|
case INVALID_CHANNEL:
|
||
|
/* Shouldn't be possible. */
|
||
|
ast_assert(0);
|
||
|
break;
|
||
|
case INVALID_ENDPOINT:
|
||
|
/* Shouldn't be possible. */
|
||
|
ast_assert(0);
|
||
|
break;
|
||
|
case ALLOC_ERROR:
|
||
|
ast_variables_destroy(vars);
|
||
|
astman_send_error(s, m, "Unable to allocate NOTIFY task data");
|
||
|
break;
|
||
|
case TASK_PUSH_ERROR:
|
||
|
/* Don't need to destroy vars since it is handled by cleanup in push_notify_uri */
|
||
|
astman_send_error(s, m, "Unable to push Notify task");
|
||
|
break;
|
||
|
case SUCCESS:
|
||
|
astman_send_ack(s, m, "NOTIFY sent");
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief Completes SIPNotify AMI command in channel mode.
|
||
|
*/
|
||
|
static void manager_notify_channel(struct mansession *s,
|
||
|
const struct message *m, const char *channel)
|
||
|
{
|
||
|
struct ast_variable *vars = astman_get_variables_order(m, ORDER_NATURAL);
|
||
|
|
||
|
switch (push_notify_channel(channel, vars, notify_ami_channel_data_create)) {
|
||
|
case INVALID_CHANNEL:
|
||
|
ast_variables_destroy(vars);
|
||
|
astman_send_error(s, m, "Channel not found");
|
||
|
break;
|
||
|
case INVALID_ENDPOINT:
|
||
|
/* Shouldn't be possible. */
|
||
|
ast_assert(0);
|
||
|
break;
|
||
|
case ALLOC_ERROR:
|
||
|
ast_variables_destroy(vars);
|
||
|
astman_send_error(s, m, "Unable to allocate NOTIFY task data");
|
||
|
break;
|
||
|
case TASK_PUSH_ERROR:
|
||
|
/* Don't need to destroy vars since it is handled by cleanup in push_notify_channel */
|
||
|
astman_send_error(s, m, "Unable to push Notify task");
|
||
|
break;
|
||
|
case SUCCESS:
|
||
|
astman_send_ack(s, m, "NOTIFY sent");
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*!
|
||
|
* \internal
|
||
|
* \brief AMI entry point to send a SIP notify to an endpoint.
|
||
|
*/
|
||
|
static int manager_notify(struct mansession *s, const struct message *m)
|
||
|
{
|
||
|
const char *endpoint_name = astman_get_header(m, "Endpoint");
|
||
|
const char *uri = astman_get_header(m, "URI");
|
||
|
const char *channel = astman_get_header(m, "Channel");
|
||
|
int count = 0;
|
||
|
|
||
|
if (!ast_strlen_zero(endpoint_name)) {
|
||
|
++count;
|
||
|
}
|
||
|
if (!ast_strlen_zero(uri)) {
|
||
|
++count;
|
||
|
}
|
||
|
if (!ast_strlen_zero(channel)) {
|
||
|
++count;
|
||
|
}
|
||
|
|
||
|
if (1 < count) {
|
||
|
astman_send_error(s, m,
|
||
|
"PJSIPNotify requires either an endpoint name, a SIP URI, or a channel. "
|
||
|
"You must use only one of them.");
|
||
|
} else if (!ast_strlen_zero(endpoint_name)) {
|
||
|
manager_notify_endpoint(s, m, endpoint_name);
|
||
|
} else if (!ast_strlen_zero(uri)) {
|
||
|
manager_notify_uri(s, m, uri);
|
||
|
} else if (!ast_strlen_zero(channel)) {
|
||
|
manager_notify_channel(s, m, channel);
|
||
|
} else {
|
||
|
astman_send_error(s, m,
|
||
|
"PJSIPNotify requires either an endpoint name, a SIP URI, or a channel.");
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int load_module(void)
|
||
|
{
|
||
|
if (aco_info_init(¬ify_cfg)) {
|
||
|
return AST_MODULE_LOAD_DECLINE;
|
||
|
}
|
||
|
|
||
|
aco_option_register_custom(¬ify_cfg, "", ACO_PREFIX, notify_options,
|
||
|
"", notify_option_handler, 0);
|
||
|
|
||
|
if (aco_process_config(¬ify_cfg, 0)) {
|
||
|
aco_info_destroy(¬ify_cfg);
|
||
|
return AST_MODULE_LOAD_DECLINE;
|
||
|
}
|
||
|
|
||
|
ast_cli_register_multiple(cli_options, ARRAY_LEN(cli_options));
|
||
|
ast_manager_register_xml("PJSIPNotify", EVENT_FLAG_SYSTEM, manager_notify);
|
||
|
|
||
|
return AST_MODULE_LOAD_SUCCESS;
|
||
|
}
|
||
|
|
||
|
static int reload_module(void)
|
||
|
{
|
||
|
if (aco_process_config(¬ify_cfg, 1) == ACO_PROCESS_ERROR) {
|
||
|
return AST_MODULE_LOAD_DECLINE;
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int unload_module(void)
|
||
|
{
|
||
|
ast_manager_unregister("PJSIPNotify");
|
||
|
ast_cli_unregister_multiple(cli_options, ARRAY_LEN(cli_options));
|
||
|
aco_info_destroy(¬ify_cfg);
|
||
|
ao2_global_obj_release(globals);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "CLI/AMI PJSIP NOTIFY Support",
|
||
|
.support_level = AST_MODULE_SUPPORT_CORE,
|
||
|
.load = load_module,
|
||
|
.reload = reload_module,
|
||
|
.unload = unload_module,
|
||
|
.load_pri = AST_MODPRI_APP_DEPEND,
|
||
|
.requires = "res_pjsip",
|
||
|
);
|