cdr/cdr_manager.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2004 - 2005
   5  *
   6  * See http://www.asterisk.org for more information about
   7  * the Asterisk project. Please do not directly contact
   8  * any of the maintainers of this project for assistance;
   9  * the project provides a web site, mailing lists and IRC
  10  * channels for your use.
  11  *
  12  * This program is free software, distributed under the terms of
  13  * the GNU General Public License Version 2. See the LICENSE file
  14  * at the top of the source tree.
  15  */
  16
  17 /*! \file
  18  *
  19  * \brief Asterisk Call Manager CDR records.
  20  *
  21  * See also
  22  * \arg \ref AstCDR
  23  * \arg \ref AstAMI
  24  * \arg \ref Config_ami
  25  * \ingroup cdr_drivers
  26  */
  27
  28 #include "asterisk.h"
  29
  30 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  31
  32 #include <sys/types.h>
  33 #include <strings.h>
  34 #include <unistd.h>
  35 #include <time.h>
  36
  37 #include "asterisk/channel.h"
  38 #include "asterisk/cdr.h"
  39 #include "asterisk/module.h"
  40 #include "asterisk/logger.h"
  41 #include "asterisk/utils.h"
  42 #include "asterisk/manager.h"
  43 #include "asterisk/config.h"
  44 #include "asterisk/pbx.h"
  45
  46 #define DATE_FORMAT     "%Y-%m-%d %T"
  47 #define CONF_FILE       "cdr_manager.conf"
  48 #define CUSTOM_FIELDS_BUF_SIZE 1024
  49
  50 static char *name = "cdr_manager";
  51
  52 static int enablecdr = 0;
  53 struct ast_str *customfields;
  54
  55 static int load_config(int reload)
  56 {
  57         char *cat = NULL;
  58         struct ast_config *cfg;
  59         struct ast_variable *v;
  60         struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
  61
  62         cfg = ast_config_load(CONF_FILE, config_flags);
  63         if (cfg == CONFIG_STATUS_FILEUNCHANGED)
  64                 return 0;
  65
  66         if (reload && customfields) {
  67                 ast_free(customfields);
  68         }
  69         customfields = NULL;
  70
  71         if (!cfg) {
  72                 /* Standard configuration */
  73                 ast_log(LOG_WARNING, "Failed to load configuration file. Module not activated.\n");
  74                 enablecdr = 0;
  75                 return 0;
  76         }
  77
  78         while ( (cat = ast_category_browse(cfg, cat)) ) {
  79                 if (!strcasecmp(cat, "general")) {
  80                         v = ast_variable_browse(cfg, cat);
  81                         while (v) {
  82                                 if (!strcasecmp(v->name, "enabled")) {
  83                                         enablecdr = ast_true(v->value);
  84                                 }
  85
  86                                 v = v->next;
  87                         }
  88                 } else if (!strcasecmp(cat, "mappings")) {
  89                         customfields = ast_str_create(CUSTOM_FIELDS_BUF_SIZE);
  90                         v = ast_variable_browse(cfg, cat);
  91                         while (v) {
  92                                 if (customfields && !ast_strlen_zero(v->name) && !ast_strlen_zero(v->value)) {
  93                                         if( (customfields->used + strlen(v->value) + strlen(v->name) + 14) < customfields->len) {
  94                                                 ast_str_append(&customfields, -1, "%s: ${CDR(%s)}\r\n", v->value, v->name);
  95                                                 ast_log(LOG_NOTICE, "Added mapping %s: ${CDR(%s)}\n", v->value, v->name);
  96                                         } else {
  97                                                 ast_log(LOG_WARNING, "No more buffer space to add other custom fields\n");
  98                                                 break;
  99                                         }
 100
 101                                 }
 102                                 v = v->next;
 103                         }
 104                 }
 105         }
 106
 107         ast_config_destroy(cfg);
 108         return 1;
 109 }
 110
 111 static int manager_log(struct ast_cdr *cdr)
 112 {
 113         struct ast_tm timeresult;
 114         char strStartTime[80] = "";
 115         char strAnswerTime[80] = "";
 116         char strEndTime[80] = "";
 117         char buf[CUSTOM_FIELDS_BUF_SIZE];
 118         struct ast_channel dummy;
 119
 120         if (!enablecdr)
 121                 return 0;
 122
 123         ast_localtime(&cdr->start, &timeresult, NULL);
 124         ast_strftime(strStartTime, sizeof(strStartTime), DATE_FORMAT, &timeresult);
 125
 126         if (cdr->answer.tv_sec) {
 127                 ast_localtime(&cdr->answer, &timeresult, NULL);
 128                 ast_strftime(strAnswerTime, sizeof(strAnswerTime), DATE_FORMAT, &timeresult);
 129         }
 130
 131         ast_localtime(&cdr->end, &timeresult, NULL);
 132         ast_strftime(strEndTime, sizeof(strEndTime), DATE_FORMAT, &timeresult);
 133
 134         /* Custom fields handling */
 135         memset(buf, 0 , sizeof(buf));
 136         if (customfields != NULL && customfields->used > 0) {
 137                 memset(&dummy, 0, sizeof(dummy));
 138                 dummy.cdr = cdr;
 139                 pbx_substitute_variables_helper(&dummy, customfields->str, buf, sizeof(buf) - 1);
 140         }
 141
 142         manager_event(EVENT_FLAG_CALL, "Cdr",
 143             "AccountCode: %s\r\n"
 144             "Source: %s\r\n"
 145             "Destination: %s\r\n"
 146             "DestinationContext: %s\r\n"
 147             "CallerID: %s\r\n"
 148             "Channel: %s\r\n"
 149             "DestinationChannel: %s\r\n"
 150             "LastApplication: %s\r\n"
 151             "LastData: %s\r\n"
 152             "StartTime: %s\r\n"
 153             "AnswerTime: %s\r\n"
 154             "EndTime: %s\r\n"
 155             "Duration: %ld\r\n"
 156             "BillableSeconds: %ld\r\n"
 157             "Disposition: %s\r\n"
 158             "AMAFlags: %s\r\n"
 159             "UniqueID: %s\r\n"
 160             "UserField: %s\r\n"
 161             "%s",
 162             cdr->accountcode, cdr->src, cdr->dst, cdr->dcontext, cdr->clid, cdr->channel,
 163             cdr->dstchannel, cdr->lastapp, cdr->lastdata, strStartTime, strAnswerTime, strEndTime,
 164             cdr->duration, cdr->billsec, ast_cdr_disp2str(cdr->disposition),
 165             ast_cdr_flags2str(cdr->amaflags), cdr->uniqueid, cdr->userfield,buf);
 166
 167         return 0;
 168 }
 169
 170 static int unload_module(void)
 171 {
 172         ast_cdr_unregister(name);
 173         if (customfields)
 174                 ast_free(customfields);
 175
 176         return 0;
 177 }
 178
 179 static int load_module(void)
 180 {
 181         int res;
 182
 183         /* Configuration file */
 184         if (!load_config(0))
 185                 return AST_MODULE_LOAD_DECLINE;
 186
 187         res = ast_cdr_register(name, "Asterisk Manager Interface CDR Backend", manager_log);
 188         if (res) {
 189                 ast_log(LOG_ERROR, "Unable to register Asterisk Call Manager CDR handling\n");
 190         }
 191
 192         return res;
 193 }
 194
 195 static int reload(void)
 196 {
 197         return load_config(1);
 198 }
 199
 200 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Asterisk Manager Interface CDR Backend",
 201                 .load = load_module,
 202                 .unload = unload_module,
 203                 .reload = reload,
 204                );