1 files changed, 346 insertions, 0 deletions
diff --git a/trunk/cdr/cdr_csv.c b/trunk/cdr/cdr_csv.c
new file mode 100644
index 000000000..cca1e8714
--- /dev/null
+++ b/trunk/cdr/cdr_csv.c
@@ -0,0 +1,346 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 1999 - 2005, Digium, Inc.
+ *
+ * Mark Spencer <markster@digium.com>
+ *
+ * Includes code and algorithms from the Zapata library.
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief Comma Separated Value CDR records.
+ *
+ * \author Mark Spencer <markster@digium.com>
+ * 
+ * \arg See also \ref AstCDR
+ * \ingroup cdr_drivers
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include <time.h>
+
+#include "asterisk/paths.h"	/* use ast_config_AST_LOG_DIR */
+#include "asterisk/config.h"
+#include "asterisk/channel.h"
+#include "asterisk/cdr.h"
+#include "asterisk/module.h"
+#include "asterisk/utils.h"
+#include "asterisk/lock.h"
+
+#define CSV_LOG_DIR "/cdr-csv"
+#define CSV_MASTER  "/Master.csv"
+
+#define DATE_FORMAT "%Y-%m-%d %T"
+
+static int usegmtime = 0;
+static int loguniqueid = 0;
+static int loguserfield = 0;
+static char *config = "cdr.conf";
+
+/* #define CSV_LOGUNIQUEID 1 */
+/* #define CSV_LOGUSERFIELD 1 */
+
+/*----------------------------------------------------
+  The values are as follows:
+
+
+  "accountcode", 	accountcode is the account name of detail records, Master.csv contains all records *
+  			Detail records are configured on a channel basis, IAX and SIP are determined by user *
+			Zap is determined by channel in zaptel.conf 
+  "source",
+  "destination",
+  "destination context", 
+  "callerid",
+  "channel",
+  "destination channel",	(if applicable)
+  "last application",	Last application run on the channel 
+  "last app argument",	argument to the last channel 
+  "start time", 
+  "answer time", 
+  "end time", 
+  duration,   		Duration is the whole length that the entire call lasted. ie. call rx'd to hangup  
+  			"end time" minus "start time" 
+  billable seconds, 	the duration that a call was up after other end answered which will be <= to duration  
+  			"end time" minus "answer time" 
+  "disposition",    	ANSWERED, NO ANSWER, BUSY 
+  "amaflags",       	DOCUMENTATION, BILL, IGNORE etc, specified on a per channel basis like accountcode. 
+  "uniqueid",           unique call identifier 
+  "userfield"		user field set via SetCDRUserField 
+----------------------------------------------------------*/
+
+static char *name = "csv";
+
+AST_MUTEX_DEFINE_STATIC(mf_lock);
+AST_MUTEX_DEFINE_STATIC(acf_lock);
+
+static int load_config(int reload)
+{
+	struct ast_config *cfg;
+	struct ast_variable *var;
+	const char *tmp;
+	struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
+
+	usegmtime = 0;
+	loguniqueid = 0;
+	loguserfield = 0;
+
+	if (!(cfg = ast_config_load(config, config_flags))) {
+		ast_log(LOG_WARNING, "unable to load config: %s\n", config);
+		return 0;
+	} else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
+		return 0;
+
+	if (!(var = ast_variable_browse(cfg, "csv"))) {
+		ast_config_destroy(cfg);
+		return 0;
+	}
+	
+	if ((tmp = ast_variable_retrieve(cfg, "csv", "usegmtime"))) {
+		usegmtime = ast_true(tmp);
+		if (usegmtime)
+			ast_debug(1, "logging time in GMT\n");
+	}
+
+	if ((tmp = ast_variable_retrieve(cfg, "csv", "loguniqueid"))) {
+		loguniqueid = ast_true(tmp);
+		if (loguniqueid)
+			ast_debug(1, "logging CDR field UNIQUEID\n");
+	}
+
+	if ((tmp = ast_variable_retrieve(cfg, "csv", "loguserfield"))) {
+		loguserfield = ast_true(tmp);
+		if (loguserfield)
+			ast_debug(1, "logging CDR user-defined field\n");
+	}
+
+	ast_config_destroy(cfg);
+	return 1;
+}
+
+static int append_string(char *buf, char *s, size_t bufsize)
+{
+	int pos = strlen(buf), spos = 0, error = -1;
+
+	if (pos >= bufsize - 4)
+		return -1;
+
+	buf[pos++] = '\"';
+
+	while(pos < bufsize - 3) {
+		if (!s[spos]) {
+			error = 0;
+			break;
+		}
+		if (s[spos] == '\"')
+			buf[pos++] = '\"';
+		buf[pos++] = s[spos];
+		spos++;
+	}
+
+	buf[pos++] = '\"';
+	buf[pos++] = ',';
+	buf[pos++] = '\0';
+
+	return error;
+}
+
+static int append_int(char *buf, int s, size_t bufsize)
+{
+	char tmp[32];
+	int pos = strlen(buf);
+
+	snprintf(tmp, sizeof(tmp), "%d", s);
+
+	if (pos + strlen(tmp) > bufsize - 3)
+		return -1;
+
+	strncat(buf, tmp, bufsize - strlen(buf) - 1);
+	pos = strlen(buf);
+	buf[pos++] = ',';
+	buf[pos++] = '\0';
+
+	return 0;
+}
+
+static int append_date(char *buf, struct timeval tv, size_t bufsize)
+{
+	char tmp[80] = "";
+	struct ast_tm tm;
+
+	if (strlen(buf) > bufsize - 3)
+		return -1;
+
+	if (ast_tvzero(tv)) {
+		strncat(buf, ",", bufsize - strlen(buf) - 1);
+		return 0;
+	}
+
+	ast_localtime(&tv, &tm, usegmtime ? "GMT" : NULL);
+	ast_strftime(tmp, sizeof(tmp), DATE_FORMAT, &tm);
+
+	return append_string(buf, tmp, bufsize);
+}
+
+static int build_csv_record(char *buf, size_t bufsize, struct ast_cdr *cdr)
+{
+
+	buf[0] = '\0';
+	/* Account code */
+	append_string(buf, cdr->accountcode, bufsize);
+	/* Source */
+	append_string(buf, cdr->src, bufsize);
+	/* Destination */
+	append_string(buf, cdr->dst, bufsize);
+	/* Destination context */
+	append_string(buf, cdr->dcontext, bufsize);
+	/* Caller*ID */
+	append_string(buf, cdr->clid, bufsize);
+	/* Channel */
+	append_string(buf, cdr->channel, bufsize);
+	/* Destination Channel */
+	append_string(buf, cdr->dstchannel, bufsize);
+	/* Last Application */
+	append_string(buf, cdr->lastapp, bufsize);
+	/* Last Data */
+	append_string(buf, cdr->lastdata, bufsize);
+	/* Start Time */
+	append_date(buf, cdr->start, bufsize);
+	/* Answer Time */
+	append_date(buf, cdr->answer, bufsize);
+	/* End Time */
+	append_date(buf, cdr->end, bufsize);
+	/* Duration */
+	append_int(buf, cdr->duration, bufsize);
+	/* Billable seconds */
+	append_int(buf, cdr->billsec, bufsize);
+	/* Disposition */
+	append_string(buf, ast_cdr_disp2str(cdr->disposition), bufsize);
+	/* AMA Flags */
+	append_string(buf, ast_cdr_flags2str(cdr->amaflags), bufsize);
+	/* Unique ID */
+	if (loguniqueid)
+		append_string(buf, cdr->uniqueid, bufsize);
+	/* append the user field */
+	if(loguserfield)
+		append_string(buf, cdr->userfield,bufsize);	
+	/* If we hit the end of our buffer, log an error */
+	if (strlen(buf) < bufsize - 5) {
+		/* Trim off trailing comma */
+		buf[strlen(buf) - 1] = '\0';
+		strncat(buf, "\n", bufsize - strlen(buf) - 1);
+		return 0;
+	}
+	return -1;
+}
+
+static int writefile(char *s, char *acc)
+{
+	char tmp[PATH_MAX];
+	FILE *f;
+
+	if (strchr(acc, '/') || (acc[0] == '.')) {
+		ast_log(LOG_WARNING, "Account code '%s' insecure for writing file\n", acc);
+		return -1;
+	}
+
+	snprintf(tmp, sizeof(tmp), "%s/%s/%s.csv", ast_config_AST_LOG_DIR,CSV_LOG_DIR, acc);
+
+	ast_mutex_lock(&acf_lock);
+	if (!(f = fopen(tmp, "a"))) {
+		ast_mutex_unlock(&acf_lock);
+		ast_log(LOG_ERROR, "Unable to open file %s : %s\n", tmp, strerror(errno));
+		return -1;
+	}
+	fputs(s, f);
+	fflush(f);
+	fclose(f);
+	ast_mutex_unlock(&acf_lock);
+
+	return 0;
+}
+
+
+static int csv_log(struct ast_cdr *cdr)
+{
+	FILE *mf = NULL;
+	/* Make sure we have a big enough buf */
+	char buf[1024];
+	char csvmaster[PATH_MAX];
+	snprintf(csvmaster, sizeof(csvmaster),"%s/%s/%s", ast_config_AST_LOG_DIR, CSV_LOG_DIR, CSV_MASTER);
+#if 0
+	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);
+#endif
+	if (build_csv_record(buf, sizeof(buf), cdr)) {
+		ast_log(LOG_WARNING, "Unable to create CSV record in %d bytes.  CDR not recorded!\n", (int)sizeof(buf));
+		return 0;
+	}
+	
+	/* because of the absolutely unconditional need for the
+	   highest reliability possible in writing billing records,
+	   we open write and close the log file each time */
+	ast_mutex_lock(&mf_lock);
+	if ((mf = fopen(csvmaster, "a"))) {
+		fputs(buf, mf);
+		fflush(mf); /* be particularly anal here */
+		fclose(mf);
+		mf = NULL;
+		ast_mutex_unlock(&mf_lock);
+	} else {
+		ast_mutex_unlock(&mf_lock);
+		ast_log(LOG_ERROR, "Unable to re-open master file %s : %s\n", csvmaster, strerror(errno));
+	}
+	
+	if (!ast_strlen_zero(cdr->accountcode)) {
+		if (writefile(buf, cdr->accountcode))
+			ast_log(LOG_WARNING, "Unable to write CSV record to account file '%s' : %s\n", cdr->accountcode, strerror(errno));
+	}
+
+	return 0;
+}
+
+static int unload_module(void)
+{
+	ast_cdr_unregister(name);
+	return 0;
+}
+
+static int load_module(void)
+{
+	int res;
+	
+	if(!load_config(0))
+		return AST_MODULE_LOAD_DECLINE;
+
+	if ((res = ast_cdr_register(name, ast_module_info->description, csv_log)))
+		ast_log(LOG_ERROR, "Unable to register CSV CDR handling\n");
+
+	return res;
+}
+
+static int reload(void)
+{
+	load_config(1);
+
+	return 0;
+}
+
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Comma Separated Values CDR Backend",
+		.load = load_module,
+		.unload = unload_module,
+		.reload = reload,
+	       );