diff options
Diffstat (limited to '1.4.23-rc4/cdr/cdr_csv.c')
| -rw-r--r-- | 1.4.23-rc4/cdr/cdr_csv.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/1.4.23-rc4/cdr/cdr_csv.c b/1.4.23-rc4/cdr/cdr_csv.c new file mode 100644 index 000000000..cdaef6853 --- /dev/null +++ b/1.4.23-rc4/cdr/cdr_csv.c @@ -0,0 +1,365 @@ +/* + * 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 <sys/types.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#include <stdlib.h> +#include <unistd.h> +#include <time.h> + +#include "asterisk/config.h" +#include "asterisk/channel.h" +#include "asterisk/cdr.h" +#include "asterisk/module.h" +#include "asterisk/logger.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 int loaded = 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 * + DAHDI is determined by channel in chan_dahdi.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(void) +{ + struct ast_config *cfg; + struct ast_variable *var; + const char *tmp; + + usegmtime = 0; + loguniqueid = 0; + loguserfield = 0; + + cfg = ast_config_load(config); + + if (!cfg) { + ast_log(LOG_WARNING, "unable to load config: %s\n", config); + return 0; + } + + var = ast_variable_browse(cfg, "csv"); + if (!var) { + ast_config_destroy(cfg); + return 0; + } + + tmp = ast_variable_retrieve(cfg, "csv", "usegmtime"); + if (tmp) { + usegmtime = ast_true(tmp); + if (usegmtime) { + ast_log(LOG_DEBUG, "logging time in GMT\n"); + } + } + + tmp = ast_variable_retrieve(cfg, "csv", "loguniqueid"); + if (tmp) { + loguniqueid = ast_true(tmp); + if (loguniqueid) { + ast_log(LOG_DEBUG, "logging CDR field UNIQUEID\n"); + } + } + + tmp = ast_variable_retrieve(cfg, "csv", "loguserfield"); + if (tmp) { + loguserfield = ast_true(tmp); + if (loguserfield) { + ast_log(LOG_DEBUG, "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); + int spos = 0; + int error = 0; + if (pos >= bufsize - 4) + return -1; + buf[pos++] = '\"'; + error = -1; + 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 tm tm; + time_t t; + t = tv.tv_sec; + if (strlen(buf) > bufsize - 3) + return -1; + if (ast_tvzero(tv)) { + strncat(buf, ",", bufsize - strlen(buf) - 1); + return 0; + } + if (usegmtime) { + gmtime_r(&t,&tm); + } else { + ast_localtime(&t, &tm, NULL); + } + 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", (char *)ast_config_AST_LOG_DIR,CSV_LOG_DIR, acc); + + ast_mutex_lock(&acf_lock); + f = fopen(tmp, "a"); + if (!f) { + 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)); + } else { + /* 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); + mf = fopen(csvmaster, "a"); + if (mf) { + 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); + loaded = 0; + return 0; +} + +static int load_module(void) +{ + int res; + + if(!load_config()) + return AST_MODULE_LOAD_DECLINE; + + res = ast_cdr_register(name, ast_module_info->description, csv_log); + if (res) { + ast_log(LOG_ERROR, "Unable to register CSV CDR handling\n"); + } else { + loaded = 1; + } + return res; +} + +static int reload(void) +{ + if (load_config()) { + loaded = 1; + } else { + loaded = 0; + ast_log(LOG_WARNING, "No [csv] section in cdr.conf. Unregistering backend.\n"); + ast_cdr_unregister(name); + } + + return 0; +} + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Comma Separated Values CDR Backend", + .load = load_module, + .unload = unload_module, + .reload = reload, + ); |