diff options
Diffstat (limited to 'cdr/cdr_custom.c')
| -rw-r--r-- | cdr/cdr_custom.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/cdr/cdr_custom.c b/cdr/cdr_custom.c new file mode 100644 index 000000000..c390b0499 --- /dev/null +++ b/cdr/cdr_custom.c @@ -0,0 +1,174 @@ +/* + * 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 Custom Comma Separated Value CDR records. + * + * \author Mark Spencer <markster@digium.com> + * + * \arg See also \ref AstCDR + * + * Logs in LOG_DIR/cdr_custom + * \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/channel.h" +#include "asterisk/cdr.h" +#include "asterisk/module.h" +#include "asterisk/config.h" +#include "asterisk/pbx.h" +#include "asterisk/logger.h" +#include "asterisk/utils.h" +#include "asterisk/lock.h" + +#define CUSTOM_LOG_DIR "/cdr_custom" + +#define DATE_FORMAT "%Y-%m-%d %T" + +AST_MUTEX_DEFINE_STATIC(lock); +AST_MUTEX_DEFINE_STATIC(mf_lock); + +static char *name = "cdr-custom"; + +static char master[PATH_MAX]; +static char format[1024]=""; + +static int load_config(int reload) +{ + struct ast_config *cfg; + struct ast_variable *var; + int res = -1; + + strcpy(format, ""); + strcpy(master, ""); + ast_mutex_lock(&lock); + if((cfg = ast_config_load("cdr_custom.conf"))) { + var = ast_variable_browse(cfg, "mappings"); + while(var) { + if (!ast_strlen_zero(var->name) && !ast_strlen_zero(var->value)) { + if (strlen(var->value) > (sizeof(format) - 1)) + ast_log(LOG_WARNING, "Format string too long, will be truncated, at line %d\n", var->lineno); + ast_copy_string(format, var->value, sizeof(format) - 1); + strcat(format,"\n"); + snprintf(master, sizeof(master),"%s/%s/%s", ast_config_AST_LOG_DIR, name, var->name); + if (var->next) { + ast_log(LOG_NOTICE, "Sorry, only one mapping is supported at this time, mapping '%s' will be ignored at line %d.\n", var->next->name, var->next->lineno); + break; + } + } else + ast_log(LOG_NOTICE, "Mapping must have both filename and format at line %d\n", var->lineno); + var = var->next; + } + ast_config_destroy(cfg); + res = 0; + } else { + if (reload) + ast_log(LOG_WARNING, "Failed to reload configuration file.\n"); + else + ast_log(LOG_WARNING, "Failed to load configuration file. Module not activated.\n"); + } + ast_mutex_unlock(&lock); + + return res; +} + + + +static int custom_log(struct ast_cdr *cdr) +{ + FILE *mf = NULL; + + /* Make sure we have a big enough buf */ + char buf[2048]; + struct ast_channel dummy; + + /* Abort if no master file is specified */ + if (ast_strlen_zero(master)) + return 0; + + memset(buf, 0 , sizeof(buf)); + /* Quite possibly the first use of a static struct ast_channel, we need it so the var funcs will work */ + memset(&dummy, 0, sizeof(dummy)); + dummy.cdr = cdr; + pbx_substitute_variables_helper(&dummy, format, buf, sizeof(buf) - 1); + + /* 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(master, "a"); + if (mf) { + fputs(buf, mf); + fflush(mf); /* be particularly anal here */ + fclose(mf); + mf = NULL; + ast_mutex_unlock(&mf_lock); + } else { + ast_log(LOG_ERROR, "Unable to re-open master file %s : %s\n", master, strerror(errno)); + ast_mutex_unlock(&mf_lock); + } + + return 0; +} + +static int unload_module(void) +{ + ast_cdr_unregister(name); + return 0; +} + +static int load_module(void) +{ + int res = 0; + + if (!load_config(0)) { + res = ast_cdr_register(name, ast_module_info->description, custom_log); + if (res) + ast_log(LOG_ERROR, "Unable to register custom CDR handling\n"); + return res; + } else + return AST_MODULE_LOAD_DECLINE; +} + +static int reload(void) +{ + return load_config(1); +} + +AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Customizable Comma Separated Values CDR Backend", + .load = load_module, + .unload = unload_module, + .reload = reload, + ); + |