This patch is the initial push to update Asterisk's CDR engine for the new bridging framework. This patch guts the existing CDR engine and builds the new on top of messages coming across Stasis. As changes in channel state and bridge state are detected, CDRs are built and dispatched accordingly. This fundamentally changes CDRs in a few ways. (1) CDRs are now *very* reflective of the actual state of channels and bridges. This means CDRs track well with what an actual channel is doing - which is useful in transfer scenarios (which were previously difficult to pin down). It does, however, mean that CDRs cannot be 'fooled'. Previous behavior in Asterisk allowed for CDR applications, channels, and other properties to be spoofed in parts of the code - this no longer works. (2) CDRs have defined behavior in multi-party scenarios. This behavior will not be what everyone wants, but it is a defined behavior and as such, it is predictable. (3) The CDR manipulation functions and applications have been overhauled. Major changes have been made to ResetCDR and ForkCDR in particular. Many of the options for these two applications no longer made any sense with the new framework and the (slightly) more immutable nature of CDRs. There are a plethora of other changes. For a full description of CDR behavior, see the CDR specification on the Asterisk wiki. (closes issue ASTERISK-21196) Review: https://reviewboard.asterisk.org/r/2486/ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@391947 65c4cc65-6c06-0410-ace0-fbb531ad65f3
240 lines
6 KiB
C
240 lines
6 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2004 - 2005
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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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/*!
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* \file
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* \brief Asterisk Call Manager CDR records.
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*
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* See also
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* \arg \ref AstCDR
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* \arg \ref AstAMI
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* \arg \ref Config_ami
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* \ingroup cdr_drivers
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*/
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/*! \li \ref cdr_manager.c uses the configuration file \ref cdr_manager.conf
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* \addtogroup configuration_file Configuration Files
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*/
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/*!
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* \page cdr_manager.conf cdr_manager.conf
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* \verbinclude cdr_manager.conf.sample
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*/
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/*** MODULEINFO
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include <time.h>
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#include "asterisk/channel.h"
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#include "asterisk/cdr.h"
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#include "asterisk/module.h"
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#include "asterisk/utils.h"
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#include "asterisk/manager.h"
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#include "asterisk/config.h"
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#include "asterisk/pbx.h"
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#define DATE_FORMAT "%Y-%m-%d %T"
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#define CONF_FILE "cdr_manager.conf"
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#define CUSTOM_FIELDS_BUF_SIZE 1024
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static const char name[] = "cdr_manager";
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static int enablecdr = 0;
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static struct ast_str *customfields;
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AST_RWLOCK_DEFINE_STATIC(customfields_lock);
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static int manager_log(struct ast_cdr *cdr);
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static int load_config(int reload)
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{
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char *cat = NULL;
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struct ast_config *cfg;
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struct ast_variable *v;
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struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
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int newenablecdr = 0;
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cfg = ast_config_load(CONF_FILE, config_flags);
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if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
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return 0;
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}
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if (cfg == CONFIG_STATUS_FILEINVALID) {
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ast_log(LOG_ERROR, "Config file '%s' could not be parsed\n", CONF_FILE);
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return -1;
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}
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if (!cfg) {
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/* Standard configuration */
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ast_log(LOG_WARNING, "Failed to load configuration file. Module not activated.\n");
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if (enablecdr)
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ast_cdr_unregister(name);
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enablecdr = 0;
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return -1;
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}
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if (reload) {
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ast_rwlock_wrlock(&customfields_lock);
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}
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if (reload && customfields) {
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ast_free(customfields);
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customfields = NULL;
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}
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while ( (cat = ast_category_browse(cfg, cat)) ) {
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if (!strcasecmp(cat, "general")) {
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v = ast_variable_browse(cfg, cat);
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while (v) {
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if (!strcasecmp(v->name, "enabled"))
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newenablecdr = ast_true(v->value);
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v = v->next;
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}
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} else if (!strcasecmp(cat, "mappings")) {
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customfields = ast_str_create(CUSTOM_FIELDS_BUF_SIZE);
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v = ast_variable_browse(cfg, cat);
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while (v) {
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if (customfields && !ast_strlen_zero(v->name) && !ast_strlen_zero(v->value)) {
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if ((ast_str_strlen(customfields) + strlen(v->value) + strlen(v->name) + 14) < ast_str_size(customfields)) {
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ast_str_append(&customfields, -1, "%s: ${CDR(%s)}\r\n", v->value, v->name);
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ast_log(LOG_NOTICE, "Added mapping %s: ${CDR(%s)}\n", v->value, v->name);
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} else {
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ast_log(LOG_WARNING, "No more buffer space to add other custom fields\n");
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break;
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}
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}
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v = v->next;
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}
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}
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}
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if (reload) {
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ast_rwlock_unlock(&customfields_lock);
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}
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ast_config_destroy(cfg);
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if (enablecdr && !newenablecdr)
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ast_cdr_unregister(name);
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else if (!enablecdr && newenablecdr)
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ast_cdr_register(name, "Asterisk Manager Interface CDR Backend", manager_log);
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enablecdr = newenablecdr;
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return 0;
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}
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static int manager_log(struct ast_cdr *cdr)
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{
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struct ast_tm timeresult;
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char strStartTime[80] = "";
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char strAnswerTime[80] = "";
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char strEndTime[80] = "";
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char buf[CUSTOM_FIELDS_BUF_SIZE];
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if (!enablecdr)
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return 0;
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ast_localtime(&cdr->start, &timeresult, NULL);
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ast_strftime(strStartTime, sizeof(strStartTime), DATE_FORMAT, &timeresult);
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if (cdr->answer.tv_sec) {
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ast_localtime(&cdr->answer, &timeresult, NULL);
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ast_strftime(strAnswerTime, sizeof(strAnswerTime), DATE_FORMAT, &timeresult);
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}
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ast_localtime(&cdr->end, &timeresult, NULL);
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ast_strftime(strEndTime, sizeof(strEndTime), DATE_FORMAT, &timeresult);
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buf[0] = '\0';
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ast_rwlock_rdlock(&customfields_lock);
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if (customfields && ast_str_strlen(customfields)) {
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struct ast_channel *dummy = ast_dummy_channel_alloc();
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if (!dummy) {
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ast_log(LOG_ERROR, "Unable to allocate channel for variable substitution.\n");
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return 0;
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}
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ast_channel_cdr_set(dummy, ast_cdr_dup(cdr));
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pbx_substitute_variables_helper(dummy, ast_str_buffer(customfields), buf, sizeof(buf) - 1);
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ast_channel_unref(dummy);
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}
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ast_rwlock_unlock(&customfields_lock);
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manager_event(EVENT_FLAG_CDR, "Cdr",
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"AccountCode: %s\r\n"
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"Source: %s\r\n"
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"Destination: %s\r\n"
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"DestinationContext: %s\r\n"
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"CallerID: %s\r\n"
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"Channel: %s\r\n"
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"DestinationChannel: %s\r\n"
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"LastApplication: %s\r\n"
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"LastData: %s\r\n"
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"StartTime: %s\r\n"
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"AnswerTime: %s\r\n"
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"EndTime: %s\r\n"
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"Duration: %ld\r\n"
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"BillableSeconds: %ld\r\n"
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"Disposition: %s\r\n"
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"AMAFlags: %s\r\n"
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"UniqueID: %s\r\n"
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"UserField: %s\r\n"
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"%s",
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cdr->accountcode, cdr->src, cdr->dst, cdr->dcontext, cdr->clid, cdr->channel,
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cdr->dstchannel, cdr->lastapp, cdr->lastdata, strStartTime, strAnswerTime, strEndTime,
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cdr->duration, cdr->billsec, ast_cdr_disp2str(cdr->disposition),
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ast_channel_amaflags2string(cdr->amaflags), cdr->uniqueid, cdr->userfield,buf);
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return 0;
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}
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static int unload_module(void)
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{
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ast_cdr_unregister(name);
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if (customfields)
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ast_free(customfields);
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return 0;
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}
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static int load_module(void)
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{
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if (load_config(0)) {
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return AST_MODULE_LOAD_DECLINE;
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}
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int reload(void)
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{
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return load_config(1);
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Asterisk Manager Interface CDR Backend",
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.load = load_module,
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.unload = unload_module,
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.reload = reload,
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.load_pri = AST_MODPRI_CDR_DRIVER,
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);
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