Git does not support the ability to replace a token with a version string during check-in. While it does have support for replacing a token on clone, this is somewhat sub-optimal: the token is replaced with the object hash, which is not particularly easy for human consumption. What's more, in practice, the source file version was often not terribly useful. Generally, when triaging bugs, the overall version of Asterisk is far more useful than an individual SVN version of a file. As a result, this patch removes Asterisk's support for showing source file versions. Specifically, it does the following: * Rename ASTERISK_FILE_VERSION macro to ASTERISK_REGISTER_FILE, and remove passing the version in with the macro. Other facilities than 'core show file version' make use of the file names, such as setting a debug level only on a specific file. As such, the act of registering source files with the Asterisk core still has use. The macro rename now reflects the new macro purpose. * main/asterisk: - Refactor the file_version structure to reflect that it no longer tracks a version field. - Remove the "core show file version" CLI command. Without the file version, it is no longer useful. - Remove the ast_file_version_find function. The file version is no longer tracked. - Rename ast_register_file_version/ast_unregister_file_version to ast_register_file/ast_unregister_file, respectively. * main/manager: Remove value from the Version key of the ModuleCheck Action. The actual key itself has not been removed, as doing so would absolutely constitute a backwards incompatible change. However, since the file version is no longer tracked, there is no need to attempt to include it in the Version key. * UPGRADE: Add notes for: - Modification to the ModuleCheck AMI Action - Removal of the "core show file version" CLI command Change-Id: I6cf0ff280e1668bf4957dc21f32a5ff43444a40e
661 lines
18 KiB
C
661 lines
18 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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* Kinsey Moore <kmoore@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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/*! \file
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*
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* \brief The Asterisk Management Interface - AMI (bridge event handling)
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*
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* \author Kinsey Moore <kmoore@digium.com>
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*/
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#include "asterisk.h"
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ASTERISK_REGISTER_FILE()
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#include "asterisk/stasis_bridges.h"
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#include "asterisk/stasis_channels.h"
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#include "asterisk/manager.h"
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#include "asterisk/stasis_message_router.h"
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/*! \brief Message router for cached bridge state snapshot updates */
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static struct stasis_message_router *bridge_state_router;
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/*** DOCUMENTATION
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<managerEvent language="en_US" name="BridgeCreate">
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<managerEventInstance class="EVENT_FLAG_CALL">
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<synopsis>Raised when a bridge is created.</synopsis>
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<syntax>
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<bridge_snapshot/>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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<managerEvent language="en_US" name="BridgeDestroy">
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<managerEventInstance class="EVENT_FLAG_CALL">
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<synopsis>Raised when a bridge is destroyed.</synopsis>
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<syntax>
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<bridge_snapshot/>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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<managerEvent language="en_US" name="BridgeEnter">
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<managerEventInstance class="EVENT_FLAG_CALL">
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<synopsis>Raised when a channel enters a bridge.</synopsis>
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<syntax>
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<bridge_snapshot/>
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<channel_snapshot/>
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<parameter name="SwapUniqueid">
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<para>The uniqueid of the channel being swapped out of the bridge</para>
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</parameter>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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<managerEvent language="en_US" name="BridgeLeave">
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<managerEventInstance class="EVENT_FLAG_CALL">
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<synopsis>Raised when a channel leaves a bridge.</synopsis>
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<syntax>
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<bridge_snapshot/>
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<channel_snapshot/>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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<manager name="BridgeList" language="en_US">
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<synopsis>
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Get a list of bridges in the system.
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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="BridgeType">
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<para>Optional type for filtering the resulting list of bridges.</para>
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</parameter>
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</syntax>
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<description>
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<para>Returns a list of bridges, optionally filtering on a bridge type.</para>
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</description>
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</manager>
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<manager name="BridgeInfo" language="en_US">
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<synopsis>
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Get information about a bridge.
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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="BridgeUniqueid" required="true">
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<para>The unique ID of the bridge about which to retrieve information.</para>
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</parameter>
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</syntax>
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<description>
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<para>Returns detailed information about a bridge and the channels in it.</para>
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</description>
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<responses>
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<list-elements>
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<managerEvent language="en_US" name="BridgeInfoChannel">
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<managerEventInstance class="EVENT_FLAG_COMMAND">
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<synopsis>Information about a channel in a bridge.</synopsis>
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<syntax>
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<channel_snapshot/>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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</list-elements>
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<managerEvent language="en_US" name="BridgeInfoComplete">
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<managerEventInstance class="EVENT_FLAG_COMMAND">
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<synopsis>Information about a bridge.</synopsis>
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<syntax>
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<bridge_snapshot/>
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</syntax>
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</managerEventInstance>
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</managerEvent>
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</responses>
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</manager>
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<manager name="BridgeDestroy" language="en_US">
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<synopsis>
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Destroy a bridge.
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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="BridgeUniqueid" required="true">
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<para>The unique ID of the bridge to destroy.</para>
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</parameter>
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</syntax>
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<description>
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<para>Deletes the bridge, causing channels to continue or hang up.</para>
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</description>
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</manager>
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<manager name="BridgeKick" language="en_US">
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<synopsis>
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Kick a channel from a bridge.
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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="BridgeUniqueid" required="false">
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<para>The unique ID of the bridge containing the channel to
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destroy. This parameter can be omitted, or supplied to insure
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that the channel is not removed from the wrong bridge.</para>
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</parameter>
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<parameter name="Channel" required="true">
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<para>The channel to kick out of a bridge.</para>
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</parameter>
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</syntax>
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<description>
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<para>The channel is removed from the bridge.</para>
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</description>
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</manager>
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***/
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/*! \brief The \ref stasis subscription returned by the forwarding of the channel topic
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* to the manager topic
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*/
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static struct stasis_forward *topic_forwarder;
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struct ast_str *ast_manager_build_bridge_state_string_prefix(
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const struct ast_bridge_snapshot *snapshot,
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const char *prefix)
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{
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struct ast_str *out = ast_str_create(128);
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int res;
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if (!out) {
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return NULL;
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}
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res = ast_str_set(&out, 0,
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"%sBridgeUniqueid: %s\r\n"
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"%sBridgeType: %s\r\n"
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"%sBridgeTechnology: %s\r\n"
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"%sBridgeCreator: %s\r\n"
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"%sBridgeName: %s\r\n"
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"%sBridgeNumChannels: %u\r\n",
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prefix, snapshot->uniqueid,
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prefix, snapshot->subclass,
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prefix, snapshot->technology,
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prefix, ast_strlen_zero(snapshot->creator) ? "<unknown>": snapshot->creator,
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prefix, ast_strlen_zero(snapshot->name) ? "<unknown>": snapshot->name,
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prefix, snapshot->num_channels);
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if (!res) {
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ast_free(out);
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return NULL;
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}
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return out;
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}
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struct ast_str *ast_manager_build_bridge_state_string(
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const struct ast_bridge_snapshot *snapshot)
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{
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return ast_manager_build_bridge_state_string_prefix(snapshot, "");
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}
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/*! \brief Typedef for callbacks that get called on channel snapshot updates */
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typedef struct ast_manager_event_blob *(*bridge_snapshot_monitor)(
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struct ast_bridge_snapshot *old_snapshot,
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struct ast_bridge_snapshot *new_snapshot);
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/*! \brief Handle bridge creation */
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static struct ast_manager_event_blob *bridge_create(
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struct ast_bridge_snapshot *old_snapshot,
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struct ast_bridge_snapshot *new_snapshot)
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{
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if (!new_snapshot || old_snapshot) {
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return NULL;
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}
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return ast_manager_event_blob_create(
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EVENT_FLAG_CALL, "BridgeCreate", NO_EXTRA_FIELDS);
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}
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/*! \brief Handle bridge destruction */
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static struct ast_manager_event_blob *bridge_destroy(
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struct ast_bridge_snapshot *old_snapshot,
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struct ast_bridge_snapshot *new_snapshot)
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{
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if (new_snapshot || !old_snapshot) {
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return NULL;
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}
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return ast_manager_event_blob_create(
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EVENT_FLAG_CALL, "BridgeDestroy", NO_EXTRA_FIELDS);
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}
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bridge_snapshot_monitor bridge_monitors[] = {
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bridge_create,
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bridge_destroy,
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};
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static void bridge_snapshot_update(void *data, struct stasis_subscription *sub,
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struct stasis_message *message)
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{
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RAII_VAR(struct ast_str *, bridge_event_string, NULL, ast_free);
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struct stasis_cache_update *update;
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struct ast_bridge_snapshot *old_snapshot;
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struct ast_bridge_snapshot *new_snapshot;
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size_t i;
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update = stasis_message_data(message);
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ast_assert(ast_bridge_snapshot_type() == update->type);
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old_snapshot = stasis_message_data(update->old_snapshot);
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new_snapshot = stasis_message_data(update->new_snapshot);
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for (i = 0; i < ARRAY_LEN(bridge_monitors); ++i) {
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RAII_VAR(struct ast_manager_event_blob *, event, NULL, ao2_cleanup);
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event = bridge_monitors[i](old_snapshot, new_snapshot);
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if (!event) {
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continue;
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}
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/* If we haven't already, build the channel event string */
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if (!bridge_event_string) {
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bridge_event_string =
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ast_manager_build_bridge_state_string(
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new_snapshot ? new_snapshot : old_snapshot);
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if (!bridge_event_string) {
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return;
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}
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}
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manager_event(event->event_flags, event->manager_event, "%s%s",
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ast_str_buffer(bridge_event_string),
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event->extra_fields);
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}
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}
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static void bridge_merge_cb(void *data, struct stasis_subscription *sub,
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struct stasis_message *message)
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{
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struct ast_bridge_merge_message *merge_msg = stasis_message_data(message);
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RAII_VAR(struct ast_str *, to_text, NULL, ast_free);
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RAII_VAR(struct ast_str *, from_text, NULL, ast_free);
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ast_assert(merge_msg->to != NULL);
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ast_assert(merge_msg->from != NULL);
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to_text = ast_manager_build_bridge_state_string_prefix(merge_msg->to, "To");
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from_text = ast_manager_build_bridge_state_string_prefix(merge_msg->from, "From");
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if (!to_text || !from_text) {
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return;
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}
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/*** DOCUMENTATION
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<managerEventInstance>
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<synopsis>Raised when two bridges are merged.</synopsis>
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<syntax>
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<bridge_snapshot prefix="To"/>
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<bridge_snapshot prefix="From"/>
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</syntax>
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</managerEventInstance>
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***/
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manager_event(EVENT_FLAG_CALL, "BridgeMerge",
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"%s"
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"%s",
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ast_str_buffer(to_text),
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ast_str_buffer(from_text));
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}
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static void channel_enter_cb(void *data, struct stasis_subscription *sub,
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struct stasis_message *message)
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{
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static const char *swap_name = "SwapUniqueid: ";
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struct ast_bridge_blob *blob = stasis_message_data(message);
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RAII_VAR(struct ast_str *, bridge_text, NULL, ast_free);
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RAII_VAR(struct ast_str *, channel_text, NULL, ast_free);
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const char *swap_id;
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bridge_text = ast_manager_build_bridge_state_string(blob->bridge);
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channel_text = ast_manager_build_channel_state_string(blob->channel);
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if (!bridge_text || !channel_text) {
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return;
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}
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swap_id = ast_json_string_get(ast_json_object_get(blob->blob, "swap"));
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manager_event(EVENT_FLAG_CALL, "BridgeEnter",
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"%s"
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"%s"
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"%s%s%s",
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ast_str_buffer(bridge_text),
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ast_str_buffer(channel_text),
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swap_id ? swap_name : "",
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S_OR(swap_id, ""),
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swap_id ? "\r\n" : "");
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}
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static void channel_leave_cb(void *data, struct stasis_subscription *sub,
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struct stasis_message *message)
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{
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struct ast_bridge_blob *blob = stasis_message_data(message);
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RAII_VAR(struct ast_str *, bridge_text, NULL, ast_free);
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RAII_VAR(struct ast_str *, channel_text, NULL, ast_free);
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bridge_text = ast_manager_build_bridge_state_string(blob->bridge);
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channel_text = ast_manager_build_channel_state_string(blob->channel);
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if (!bridge_text || !channel_text) {
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return;
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}
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manager_event(EVENT_FLAG_CALL, "BridgeLeave",
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"%s"
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"%s",
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ast_str_buffer(bridge_text),
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ast_str_buffer(channel_text));
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}
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static int filter_bridge_type_cb(void *obj, void *arg, int flags)
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{
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char *bridge_type = arg;
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struct ast_bridge_snapshot *snapshot = stasis_message_data(obj);
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/* unlink all the snapshots that do not match the bridge type */
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return strcmp(bridge_type, snapshot->technology) ? CMP_MATCH : 0;
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}
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struct bridge_list_data {
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const char *id_text;
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int count;
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};
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static int send_bridge_list_item_cb(void *obj, void *arg, void *data, int flags)
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{
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struct ast_bridge_snapshot *snapshot = stasis_message_data(obj);
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struct mansession *s = arg;
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struct bridge_list_data *list_data = data;
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RAII_VAR(struct ast_str *, bridge_info, ast_manager_build_bridge_state_string(snapshot), ast_free);
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if (!bridge_info) {
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return 0;
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}
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astman_append(s,
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"Event: BridgeListItem\r\n"
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"%s"
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"%s"
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"\r\n",
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list_data->id_text,
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ast_str_buffer(bridge_info));
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++list_data->count;
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return 0;
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}
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static int manager_bridges_list(struct mansession *s, const struct message *m)
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{
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const char *id = astman_get_header(m, "ActionID");
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const char *type_filter = astman_get_header(m, "BridgeType");
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RAII_VAR(struct ast_str *, id_text, ast_str_create(128), ast_free);
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RAII_VAR(struct ao2_container *, bridges, NULL, ao2_cleanup);
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struct bridge_list_data list_data;
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if (!id_text) {
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astman_send_error(s, m, "Internal error");
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return -1;
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}
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if (!ast_strlen_zero(id)) {
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ast_str_set(&id_text, 0, "ActionID: %s\r\n", id);
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}
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bridges = stasis_cache_dump(ast_bridge_cache(), ast_bridge_snapshot_type());
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if (!bridges) {
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astman_send_error(s, m, "Internal error");
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return -1;
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}
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astman_send_listack(s, m, "Bridge listing will follow", "start");
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if (!ast_strlen_zero(type_filter)) {
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char *type_filter_dup = ast_strdupa(type_filter);
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ao2_callback(bridges, OBJ_MULTIPLE | OBJ_NODATA | OBJ_UNLINK,
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filter_bridge_type_cb, type_filter_dup);
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}
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list_data.id_text = ast_str_buffer(id_text);
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list_data.count = 0;
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ao2_callback_data(bridges, OBJ_NODATA, send_bridge_list_item_cb, s, &list_data);
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astman_send_list_complete_start(s, m, "BridgeListComplete", list_data.count);
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astman_send_list_complete_end(s);
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return 0;
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}
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static int send_bridge_info_item_cb(void *obj, void *arg, void *data, int flags)
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{
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char *uniqueid = obj;
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struct mansession *s = arg;
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struct bridge_list_data *list_data = data;
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RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
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struct ast_channel_snapshot *snapshot;
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RAII_VAR(struct ast_str *, channel_text, NULL, ast_free);
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msg = stasis_cache_get(ast_channel_cache(),
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ast_channel_snapshot_type(), uniqueid);
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if (!msg) {
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return 0;
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}
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snapshot = stasis_message_data(msg);
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if (snapshot->tech_properties & AST_CHAN_TP_INTERNAL) {
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return 0;
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}
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channel_text = ast_manager_build_channel_state_string(snapshot);
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if (!channel_text) {
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return 0;
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}
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astman_append(s,
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"Event: BridgeInfoChannel\r\n"
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"%s"
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"%s"
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"\r\n",
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list_data->id_text,
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ast_str_buffer(channel_text));
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++list_data->count;
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return 0;
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}
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static int manager_bridge_info(struct mansession *s, const struct message *m)
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{
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const char *id = astman_get_header(m, "ActionID");
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const char *bridge_uniqueid = astman_get_header(m, "BridgeUniqueid");
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RAII_VAR(struct ast_str *, id_text, ast_str_create(128), ast_free);
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RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
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RAII_VAR(struct ast_str *, bridge_info, NULL, ast_free);
|
|
struct ast_bridge_snapshot *snapshot;
|
|
struct bridge_list_data list_data;
|
|
|
|
if (!id_text) {
|
|
astman_send_error(s, m, "Internal error");
|
|
return -1;
|
|
}
|
|
|
|
if (ast_strlen_zero(bridge_uniqueid)) {
|
|
astman_send_error(s, m, "BridgeUniqueid must be provided");
|
|
return 0;
|
|
}
|
|
|
|
if (!ast_strlen_zero(id)) {
|
|
ast_str_set(&id_text, 0, "ActionID: %s\r\n", id);
|
|
}
|
|
|
|
msg = stasis_cache_get(ast_bridge_cache(), ast_bridge_snapshot_type(), bridge_uniqueid);
|
|
if (!msg) {
|
|
astman_send_error(s, m, "Specified BridgeUniqueid not found");
|
|
return 0;
|
|
}
|
|
|
|
snapshot = stasis_message_data(msg);
|
|
bridge_info = ast_manager_build_bridge_state_string(snapshot);
|
|
if (!bridge_info) {
|
|
astman_send_error(s, m, "Internal error");
|
|
return -1;
|
|
}
|
|
|
|
astman_send_listack(s, m, "Bridge channel listing will follow", "start");
|
|
|
|
list_data.id_text = ast_str_buffer(id_text);
|
|
list_data.count = 0;
|
|
ao2_callback_data(snapshot->channels, OBJ_NODATA, send_bridge_info_item_cb, s, &list_data);
|
|
|
|
astman_send_list_complete_start(s, m, "BridgeInfoComplete", list_data.count);
|
|
if (!ast_strlen_zero(ast_str_buffer(bridge_info))) {
|
|
astman_append(s, "%s", ast_str_buffer(bridge_info));
|
|
}
|
|
astman_send_list_complete_end(s);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int manager_bridge_destroy(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *bridge_uniqueid = astman_get_header(m, "BridgeUniqueid");
|
|
struct ast_bridge *bridge;
|
|
|
|
if (ast_strlen_zero(bridge_uniqueid)) {
|
|
astman_send_error(s, m, "BridgeUniqueid must be provided");
|
|
return 0;
|
|
}
|
|
|
|
bridge = ast_bridge_find_by_id(bridge_uniqueid);
|
|
if (!bridge) {
|
|
astman_send_error(s, m, "Specified BridgeUniqueid not found");
|
|
return 0;
|
|
}
|
|
ast_bridge_destroy(bridge, 0);
|
|
|
|
astman_send_ack(s, m, "Bridge has been destroyed");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int manager_bridge_kick(struct mansession *s, const struct message *m)
|
|
{
|
|
const char *bridge_uniqueid = astman_get_header(m, "BridgeUniqueid");
|
|
const char *channel_name = astman_get_header(m, "Channel");
|
|
RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
|
|
RAII_VAR(struct ast_channel *, channel, NULL, ao2_cleanup);
|
|
|
|
if (ast_strlen_zero(channel_name)) {
|
|
astman_send_error(s, m, "Channel must be provided");
|
|
return 0;
|
|
}
|
|
|
|
channel = ast_channel_get_by_name(channel_name);
|
|
if (!channel) {
|
|
astman_send_error(s, m, "Channel does not exist");
|
|
return 0;
|
|
}
|
|
|
|
if (ast_strlen_zero(bridge_uniqueid)) {
|
|
/* get the bridge from the channel */
|
|
ast_channel_lock(channel);
|
|
bridge = ast_channel_get_bridge(channel);
|
|
ast_channel_unlock(channel);
|
|
if (!bridge) {
|
|
astman_send_error(s, m, "Channel is not in a bridge");
|
|
return 0;
|
|
}
|
|
} else {
|
|
bridge = ast_bridge_find_by_id(bridge_uniqueid);
|
|
if (!bridge) {
|
|
astman_send_error(s, m, "Bridge not found");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (ast_bridge_kick(bridge, channel)) {
|
|
astman_send_error(s, m, "Channel kick from bridge failed");
|
|
return 0;
|
|
}
|
|
|
|
astman_send_ack(s, m, "Channel has been kicked");
|
|
return 0;
|
|
}
|
|
|
|
static void manager_bridging_cleanup(void)
|
|
{
|
|
stasis_forward_cancel(topic_forwarder);
|
|
topic_forwarder = NULL;
|
|
|
|
ast_manager_unregister("BridgeList");
|
|
ast_manager_unregister("BridgeInfo");
|
|
ast_manager_unregister("BridgeDestroy");
|
|
ast_manager_unregister("BridgeKick");
|
|
}
|
|
|
|
int manager_bridging_init(void)
|
|
{
|
|
int ret = 0;
|
|
struct stasis_topic *manager_topic;
|
|
struct stasis_topic *bridge_topic;
|
|
|
|
if (bridge_state_router) {
|
|
/* Already initialized */
|
|
return 0;
|
|
}
|
|
|
|
ast_register_cleanup(manager_bridging_cleanup);
|
|
|
|
manager_topic = ast_manager_get_topic();
|
|
if (!manager_topic) {
|
|
return -1;
|
|
}
|
|
|
|
bridge_topic = ast_bridge_topic_all_cached();
|
|
if (!bridge_topic) {
|
|
return -1;
|
|
}
|
|
|
|
topic_forwarder = stasis_forward_all(bridge_topic, manager_topic);
|
|
if (!topic_forwarder) {
|
|
return -1;
|
|
}
|
|
|
|
bridge_state_router = ast_manager_get_message_router();
|
|
if (!bridge_state_router) {
|
|
return -1;
|
|
}
|
|
|
|
ret |= stasis_message_router_add_cache_update(bridge_state_router,
|
|
ast_bridge_snapshot_type(), bridge_snapshot_update, NULL);
|
|
|
|
ret |= stasis_message_router_add(bridge_state_router,
|
|
ast_bridge_merge_message_type(), bridge_merge_cb, NULL);
|
|
|
|
ret |= stasis_message_router_add(bridge_state_router,
|
|
ast_channel_entered_bridge_type(), channel_enter_cb, NULL);
|
|
|
|
ret |= stasis_message_router_add(bridge_state_router,
|
|
ast_channel_left_bridge_type(), channel_leave_cb, NULL);
|
|
|
|
ret |= ast_manager_register_xml_core("BridgeList", 0, manager_bridges_list);
|
|
ret |= ast_manager_register_xml_core("BridgeInfo", 0, manager_bridge_info);
|
|
ret |= ast_manager_register_xml_core("BridgeDestroy", 0, manager_bridge_destroy);
|
|
ret |= ast_manager_register_xml_core("BridgeKick", 0, manager_bridge_kick);
|
|
|
|
/* If somehow we failed to add any routes, just shut down the whole
|
|
* thing and fail it.
|
|
*/
|
|
if (ret) {
|
|
manager_bridging_cleanup();
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|