2 * Asterisk -- An open source telephony toolkit.
4 * Copyright (C) 1999 - 2005, Digium, Inc.
6 * Mark Spencer <markster@digium.com>
8 * Includes code and algorithms from the Zapata library.
10 * See http://www.asterisk.org for more information about
11 * the Asterisk project. Please do not directly contact
12 * any of the maintainers of this project for assistance;
13 * the project provides a web site, mailing lists and IRC
14 * channels for your use.
16 * This program is free software, distributed under the terms of
17 * the GNU General Public License Version 2. See the LICENSE file
18 * at the top of the source tree.
23 * \brief Comma Separated Value CDR records.
25 * \author Mark Spencer <markster@digium.com>
27 * \arg See also \ref AstCDR
28 * \ingroup cdr_drivers
33 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
35 #include <sys/types.h>
44 #include "asterisk/config.h"
45 #include "asterisk/channel.h"
46 #include "asterisk/cdr.h"
47 #include "asterisk/module.h"
48 #include "asterisk/options.h"
49 #include "asterisk/logger.h"
50 #include "asterisk/utils.h"
52 #define CSV_LOG_DIR "/cdr-csv"
53 #define CSV_MASTER "/Master.csv"
55 #define DATE_FORMAT "%Y-%m-%d %T"
57 static int usegmtime = 0;
58 static int loguniqueid = 0;
59 static int loguserfield = 0;
60 static char *config = "cdr.conf";
62 /* #define CSV_LOGUNIQUEID 1 */
63 /* #define CSV_LOGUSERFIELD 1 */
65 /*----------------------------------------------------
66 The values are as follows:
69 "accountcode", accountcode is the account name of detail records, Master.csv contains all records *
70 Detail records are configured on a channel basis, IAX and SIP are determined by user *
71 Zap is determined by channel in zaptel.conf
74 "destination context",
77 "destination channel", (if applicable)
78 "last application", Last application run on the channel
79 "last app argument", argument to the last channel
83 duration, Duration is the whole length that the entire call lasted. ie. call rx'd to hangup
84 "end time" minus "start time"
85 billable seconds, the duration that a call was up after other end answered which will be <= to duration
86 "end time" minus "answer time"
87 "disposition", ANSWERED, NO ANSWER, BUSY
88 "amaflags", DOCUMENTATION, BILL, IGNORE etc, specified on a per channel basis like accountcode.
89 "uniqueid", unique call identifier
90 "userfield" user field set via SetCDRUserField
91 ----------------------------------------------------------*/
93 static char *name = "csv";
95 static FILE *mf = NULL;
98 static int load_config(void)
100 struct ast_config *cfg;
101 struct ast_variable *var;
108 cfg = ast_config_load(config);
111 ast_log(LOG_WARNING, "unable to load config: %s\n", config);
115 var = ast_variable_browse(cfg, "csv");
117 ast_config_destroy(cfg);
121 tmp = ast_variable_retrieve(cfg, "csv", "usegmtime");
123 usegmtime = ast_true(tmp);
126 ast_log(LOG_DEBUG, "logging time in GMT\n");
130 tmp = ast_variable_retrieve(cfg, "csv", "loguniqueid");
132 loguniqueid = ast_true(tmp);
135 ast_log(LOG_DEBUG, "logging CDR field UNIQUEID\n");
139 tmp = ast_variable_retrieve(cfg, "csv", "loguserfield");
141 loguserfield = ast_true(tmp);
144 ast_log(LOG_DEBUG, "logging CDR user-defined field\n");
148 ast_config_destroy(cfg);
152 static int append_string(char *buf, char *s, size_t bufsize)
154 int pos = strlen(buf);
157 if (pos >= bufsize - 4)
161 while(pos < bufsize - 3) {
168 buf[pos++] = s[spos];
177 static int append_int(char *buf, int s, size_t bufsize)
180 int pos = strlen(buf);
181 snprintf(tmp, sizeof(tmp), "%d", s);
182 if (pos + strlen(tmp) > bufsize - 3)
184 strncat(buf, tmp, bufsize - strlen(buf) - 1);
191 static int append_date(char *buf, struct timeval tv, size_t bufsize)
197 if (strlen(buf) > bufsize - 3)
199 if (ast_tvzero(tv)) {
200 strncat(buf, ",", bufsize - strlen(buf) - 1);
208 strftime(tmp, sizeof(tmp), DATE_FORMAT, &tm);
209 return append_string(buf, tmp, bufsize);
212 static int build_csv_record(char *buf, size_t bufsize, struct ast_cdr *cdr)
217 append_string(buf, cdr->accountcode, bufsize);
219 append_string(buf, cdr->src, bufsize);
221 append_string(buf, cdr->dst, bufsize);
222 /* Destination context */
223 append_string(buf, cdr->dcontext, bufsize);
225 append_string(buf, cdr->clid, bufsize);
227 append_string(buf, cdr->channel, bufsize);
228 /* Destination Channel */
229 append_string(buf, cdr->dstchannel, bufsize);
230 /* Last Application */
231 append_string(buf, cdr->lastapp, bufsize);
233 append_string(buf, cdr->lastdata, bufsize);
235 append_date(buf, cdr->start, bufsize);
237 append_date(buf, cdr->answer, bufsize);
239 append_date(buf, cdr->end, bufsize);
241 append_int(buf, cdr->duration, bufsize);
242 /* Billable seconds */
243 append_int(buf, cdr->billsec, bufsize);
245 append_string(buf, ast_cdr_disp2str(cdr->disposition), bufsize);
247 append_string(buf, ast_cdr_flags2str(cdr->amaflags), bufsize);
250 append_string(buf, cdr->uniqueid, bufsize);
251 /* append the user field */
253 append_string(buf, cdr->userfield,bufsize);
254 /* If we hit the end of our buffer, log an error */
255 if (strlen(buf) < bufsize - 5) {
256 /* Trim off trailing comma */
257 buf[strlen(buf) - 1] = '\0';
258 strncat(buf, "\n", bufsize - strlen(buf) - 1);
264 static int writefile(char *s, char *acc)
268 if (strchr(acc, '/') || (acc[0] == '.')) {
269 ast_log(LOG_WARNING, "Account code '%s' insecure for writing file\n", acc);
272 snprintf(tmp, sizeof(tmp), "%s/%s/%s.csv", (char *)ast_config_AST_LOG_DIR,CSV_LOG_DIR, acc);
283 static int csv_log(struct ast_cdr *cdr)
285 /* Make sure we have a big enough buf */
287 char csvmaster[PATH_MAX];
288 snprintf(csvmaster, sizeof(csvmaster),"%s/%s/%s", ast_config_AST_LOG_DIR, CSV_LOG_DIR, CSV_MASTER);
290 printf("[CDR] %s ('%s' -> '%s') Dur: %ds Bill: %ds Disp: %s Flags: %s Account: [%s]\n", cdr->channel, cdr->src, cdr->dst, cdr->duration, cdr->billsec, ast_cdr_disp2str(cdr->disposition), ast_cdr_flags2str(cdr->amaflags), cdr->accountcode);
292 if (build_csv_record(buf, sizeof(buf), cdr)) {
293 ast_log(LOG_WARNING, "Unable to create CSV record in %d bytes. CDR not recorded!\n", (int)sizeof(buf));
295 /* because of the absolutely unconditional need for the
296 highest reliability possible in writing billing records,
297 we open write and close the log file each time */
298 mf = fopen(csvmaster, "a");
300 ast_log(LOG_ERROR, "Unable to re-open master file %s : %s\n", csvmaster, strerror(errno));
304 fflush(mf); /* be particularly anal here */
308 if (!ast_strlen_zero(cdr->accountcode)) {
309 if (writefile(buf, cdr->accountcode))
310 ast_log(LOG_WARNING, "Unable to write CSV record to account file '%s' : %s\n", cdr->accountcode, strerror(errno));
316 static int unload_module(void)
320 ast_cdr_unregister(name);
324 static int load_module(void)
329 return AST_MODULE_LOAD_DECLINE;
331 res = ast_cdr_register(name, ast_module_info->description, csv_log);
333 ast_log(LOG_ERROR, "Unable to register CSV CDR handling\n");
340 static int reload(void)
347 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Comma Separated Values CDR Backend",
349 .unload = unload_module,