cdr/cdr_odbc.c

   1 /*
   2  * Asterisk -- A telephony toolkit for Linux.
   3  *
   4  * ODBC CDR Backend
   5  *
   6  * Brian K. West <brian@bkw.org>
   7  *
   8  * This program is free software, distributed under the terms of
   9  * the GNU General Public License.
  10  *
  11  * Copyright (c) 2003 Digium, Inc.
  12  *
  13  */
  14
  15 #include <sys/types.h>
  16 #include <asterisk/config.h>
  17 #include <asterisk/options.h>
  18 #include <asterisk/channel.h>
  19 #include <asterisk/cdr.h>
  20 #include <asterisk/module.h>
  21 #include <asterisk/logger.h>
  22 #include "../asterisk.h"
  23
  24 #include <stdio.h>
  25 #include <string.h>
  26
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <time.h>
  30
  31 #include <sql.h>
  32 #include <sqlext.h>
  33 #include <sqltypes.h>
  34
  35 #define DATE_FORMAT "%Y-%m-%d %T"
  36
  37 static char *desc = "ODBC CDR Backend";
  38 static char *name = "ODBC";
  39 static char *config = "cdr_odbc.conf";
  40 static char *dsn = NULL, *username = NULL, *password = NULL, *loguniqueid = NULL;
  41 static int dsn_alloc = 0, username_alloc = 0, password_alloc = 0;
  42 static int connected = 0;
  43
  44 static ast_mutex_t odbc_lock = AST_MUTEX_INITIALIZER;
  45
  46 static int odbc_do_query(void);
  47 static int odbc_init(void);
  48
  49 static SQLHENV  ODBC_env = SQL_NULL_HANDLE;     /* global ODBC Environment */
  50 static SQLHDBC  ODBC_con;                       /* global ODBC Connection Handle */
  51 static SQLHSTMT ODBC_stmt;                      /* global ODBC Statement Handle */
  52
  53 static int odbc_log(struct ast_cdr *cdr)
  54 {
  55         long int ODBC_err;
  56         short int ODBC_mlen;
  57         int ODBC_res;
  58         char ODBC_msg[200], ODBC_stat[10];
  59         char sqlcmd[2048], timestr[128];
  60         int res = 0;
  61         struct tm tm;
  62         struct timeval tv;
  63         time_t t;
  64
  65         gettimeofday(&tv,NULL);
  66         t = tv.tv_sec;
  67         localtime_r(&t,&tm);
  68
  69         ast_mutex_lock(&odbc_lock);
  70         strftime(timestr,128,DATE_FORMAT,&tm);
  71         memset(sqlcmd,0,2048);
  72         if((loguniqueid != NULL) && ((strcmp(loguniqueid, "1") == 0) || (strcmp(loguniqueid, "yes") == 0)))
  73         {
  74                 sprintf(sqlcmd,"INSERT INTO cdr "
  75                 "(calldate,clid,src,dst,dcontext,channel,dstchannel,lastapp,"
  76                 "lastdata,duration,billsec,disposition,amaflags,accountcode,uniqueid) "
  77                 "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
  78         }
  79         else
  80         {
  81                 sprintf(sqlcmd,"INSERT INTO cdr "
  82                 "(calldate,clid,src,dst,dcontext,channel,dstchannel,lastapp,lastdata,"
  83                 "duration,billsec,disposition,amaflags,accountcode) "
  84                 "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
  85         }
  86
  87         if(!connected)
  88         {
  89                 res =  odbc_init();
  90                 if(res < 0)
  91                 {
  92                         connected = 0;
  93                         ast_mutex_unlock(&odbc_lock);
  94                         return 0;
  95                 }
  96
  97         }
  98
  99         ODBC_res = SQLAllocHandle(SQL_HANDLE_STMT, ODBC_con, &ODBC_stmt);
 100
 101         if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 102         {
 103                 if(option_verbose > 3)
 104                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Failure in AllocStatement %d\n", ODBC_res);
 105                 SQLGetDiagRec(SQL_HANDLE_DBC, ODBC_con, 1, ODBC_stat, &ODBC_err, ODBC_msg, 100, &ODBC_mlen);
 106                 SQLFreeHandle(SQL_HANDLE_STMT, ODBC_stmt);
 107                 connected = 0;
 108                 ast_mutex_unlock(&odbc_lock);
 109                 return 0;
 110         }
 111
 112         /* We really should only have to do this once.  But for some
 113            strange reason if I don't it blows holes in memory like
 114            like a shotgun.  So we just do this so its safe. */
 115
 116         ODBC_res = SQLPrepare(ODBC_stmt, sqlcmd, SQL_NTS);
 117
 118         if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 119         {
 120                 if(option_verbose > 3)
 121                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error in PREPARE %d\n", ODBC_res);
 122                 SQLGetDiagRec(SQL_HANDLE_DBC, ODBC_con, 1, ODBC_stat, &ODBC_err, ODBC_msg, 100, &ODBC_mlen);
 123                 SQLFreeHandle(SQL_HANDLE_STMT, ODBC_stmt);
 124                 connected = 0;
 125                 ast_mutex_unlock(&odbc_lock);
 126                 return 0;
 127         }
 128
 129         SQLBindParameter(ODBC_stmt, 1, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, &timestr, 0, NULL);
 130         SQLBindParameter(ODBC_stmt, 2, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->clid, 0, NULL);
 131         SQLBindParameter(ODBC_stmt, 3, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->src, 0, NULL);
 132         SQLBindParameter(ODBC_stmt, 4, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->dst, 0, NULL);
 133         SQLBindParameter(ODBC_stmt, 5, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->dcontext, 0, NULL);
 134         SQLBindParameter(ODBC_stmt, 6, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->channel, 0, NULL);
 135         SQLBindParameter(ODBC_stmt, 7, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->dstchannel, 0, NULL);
 136         SQLBindParameter(ODBC_stmt, 8, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->lastapp, 0, NULL);
 137         SQLBindParameter(ODBC_stmt, 9, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->lastdata, 0, NULL);
 138         SQLBindParameter(ODBC_stmt, 10, SQL_PARAM_INPUT, SQL_C_SSHORT, SQL_INTEGER, 0, 0, &cdr->duration, 0, NULL);
 139         SQLBindParameter(ODBC_stmt, 11, SQL_PARAM_INPUT, SQL_C_SSHORT, SQL_INTEGER, 0, 0, &cdr->billsec, 0, NULL);
 140         SQLBindParameter(ODBC_stmt, 12, SQL_PARAM_INPUT, SQL_C_SSHORT, SQL_INTEGER, 0, 0, &cdr->disposition, 0, NULL);
 141         SQLBindParameter(ODBC_stmt, 13, SQL_PARAM_INPUT, SQL_C_SSHORT, SQL_INTEGER, 0, 0, &cdr->amaflags, 0, NULL);
 142         SQLBindParameter(ODBC_stmt, 14, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->accountcode, 0, NULL);
 143
 144         if((loguniqueid != NULL) && ((strcmp(loguniqueid, "1") == 0) || (strcmp(loguniqueid, "yes") == 0)))
 145         {
 146                 SQLBindParameter(ODBC_stmt, 15, SQL_PARAM_INPUT, SQL_C_CHAR, SQL_CHAR, 0, 0, cdr->uniqueid, 0, NULL);
 147         }
 148
 149         if(connected)
 150         {
 151                 res = odbc_do_query();
 152                 if(res < 0)
 153                 {
 154                         if(option_verbose > 3)
 155                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Query FAILED Call not logged!\n");
 156                         res = odbc_init();
 157                         if(option_verbose > 3)
 158                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Reconnecting to dsn %s\n", dsn);
 159                         if(res < 0)
 160                         {
 161                                 if(option_verbose > 3)
 162                                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: %s has gone away!\n", dsn);
 163                                 connected = 0;
 164                         }
 165                         else
 166                         {
 167                                 if(option_verbose > 3)
 168                                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Trying Query again!\n");
 169                                 res = odbc_do_query();
 170                                 if(res < 0)
 171                                 {
 172                                         if(option_verbose > 3)
 173                                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Query FAILED Call not logged!\n");
 174                                 }
 175                         }
 176                 }
 177         }
 178         else
 179         {
 180                 if(option_verbose > 3)
 181                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Query FAILED Call not logged!\n");
 182         }
 183         ast_mutex_unlock(&odbc_lock);
 184         return 0;
 185 }
 186
 187 char *description(void)
 188 {
 189         return desc;
 190 }
 191
 192 static int odbc_unload_module(void)
 193 {
 194         ast_mutex_lock(&odbc_lock);
 195         if (connected)
 196         {
 197                 if(option_verbose > 3)
 198                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Disconnecting from %s\n", dsn);
 199                 SQLFreeHandle(SQL_HANDLE_STMT, ODBC_stmt);
 200                 SQLDisconnect(ODBC_con);
 201                 SQLFreeHandle(SQL_HANDLE_DBC, ODBC_con);
 202                 SQLFreeHandle(SQL_HANDLE_ENV, ODBC_env);
 203                 connected = 0;
 204         }
 205         if (dsn && dsn_alloc)
 206         {
 207                 if(option_verbose > 3)
 208                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: free dsn\n");
 209                 free(dsn);
 210                 dsn = NULL;
 211                 dsn_alloc = 0;
 212         }
 213         if (username && username_alloc)
 214         {
 215                 if(option_verbose > 3)
 216                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: free username\n");
 217                 free(username);
 218                 username = NULL;
 219                 username_alloc = 0;
 220         }
 221         if (password && password_alloc)
 222         {
 223                 if(option_verbose > 3)
 224                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: free password\n");
 225                 free(password);
 226                 password = NULL;
 227                 password_alloc = 0;
 228         }
 229         ast_cdr_unregister(name);
 230         ast_mutex_unlock(&odbc_lock);
 231         return 0;
 232 }
 233
 234 static int odbc_load_module(void)
 235 {
 236         int res;
 237         struct ast_config *cfg;
 238         struct ast_variable *var;
 239         char *tmp;
 240
 241         ast_mutex_lock(&odbc_lock);
 242
 243         cfg = ast_load(config);
 244         if (!cfg)
 245         {
 246                 ast_log(LOG_WARNING, "cdr_odbc: Unable to load config for ODBC CDR's: %s\n", config);
 247                 return 0;
 248         }
 249
 250         var = ast_variable_browse(cfg, "global");
 251         if (!var) {
 252                 /* nothing configured */
 253                 return 0;
 254         }
 255
 256         tmp = ast_variable_retrieve(cfg,"global","dsn");
 257         if (tmp)
 258         {
 259                 dsn = malloc(strlen(tmp) + 1);
 260                 if (dsn != NULL)
 261                 {
 262                         dsn_alloc = 1;
 263                         strcpy(dsn,tmp);
 264                 }
 265                 else
 266                 {
 267                         ast_log(LOG_ERROR,"cdr_odbc: Out of memory error.\n");
 268                         return -1;
 269                 }
 270         }
 271         else
 272         {
 273                 ast_log(LOG_WARNING,"cdr_odbc: dsn not specified.  Assuming asteriskdb\n");
 274                 dsn = "asteriskdb";
 275         }
 276
 277         tmp = ast_variable_retrieve(cfg,"global","username");
 278         if (tmp)
 279         {
 280                 username = malloc(strlen(tmp) + 1);
 281                 if (username != NULL)
 282                 {
 283                         username_alloc = 1;
 284                         strcpy(username,tmp);
 285                 }
 286                 else
 287                 {
 288                         ast_log(LOG_ERROR,"cdr_odbc: Out of memory error.\n");
 289                         return -1;
 290                 }
 291         }
 292         else
 293         {
 294                 ast_log(LOG_WARNING,"cdr_odbc: username not specified.  Assuming root\n");
 295                 username = "root";
 296         }
 297
 298         tmp = ast_variable_retrieve(cfg,"global","password");
 299         if (tmp)
 300         {
 301                 password = malloc(strlen(tmp) + 1);
 302                 if (password != NULL)
 303                 {
 304                         password_alloc = 1;
 305                         strcpy(password,tmp);
 306                 }
 307                 else
 308                 {
 309                         ast_log(LOG_ERROR,"cdr_odbc: Out of memory error.\n");
 310                         return -1;
 311                 }
 312         }
 313         else
 314         {
 315                 ast_log(LOG_WARNING,"cdr_odbc: database password not specified.  Assuming blank\n");
 316                 password = "";
 317         }
 318
 319         tmp = ast_variable_retrieve(cfg,"global","loguniqueid");
 320         if (tmp)
 321         {
 322                 loguniqueid = malloc(strlen(tmp) + 1);
 323                 if (loguniqueid != NULL)
 324                 {
 325                         strcpy(loguniqueid,tmp);
 326                         ast_log(LOG_WARNING,"cdr_odbc: Logging uniqueid\n");
 327                 }
 328                 else
 329                 {
 330                         ast_log(LOG_ERROR,"cdr_odbc: Not logging uniqueid\n");
 331                         loguniqueid = NULL;
 332                 }
 333         }
 334         else
 335         {
 336                 ast_log(LOG_WARNING,"cdr_odbc: Not logging uniqueid\n");
 337                 loguniqueid = NULL;
 338         }
 339
 340         ast_destroy(cfg);
 341         if(option_verbose > 3)
 342         {
 343                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: dsn is %s\n",dsn);
 344                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: username is %s\n",username);
 345                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: password is [secret]\n");
 346
 347         }
 348
 349         res = odbc_init();
 350         if(res < 0)
 351         {
 352                 ast_log(LOG_ERROR, "cdr_odbc: Unable to connect to datasource: %s\n", dsn);
 353                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Unable to connect to datasource: %s\n", dsn);
 354         }
 355
 356         res = ast_cdr_register(name, desc, odbc_log);
 357         if (res)
 358         {
 359                 ast_log(LOG_ERROR, "cdr_odbc: Unable to register ODBC CDR handling\n");
 360         }
 361         ast_mutex_unlock(&odbc_lock);
 362         return res;
 363 }
 364
 365 static int odbc_do_query(void)
 366 {
 367         long int ODBC_err;
 368         int ODBC_res;
 369         short int ODBC_mlen;
 370         char ODBC_msg[200], ODBC_stat[10];
 371
 372         ODBC_res = SQLExecute(ODBC_stmt);
 373
 374         if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 375         {
 376                 if(option_verbose > 3)
 377                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error in Query %d\n", ODBC_res);
 378                 SQLGetDiagRec(SQL_HANDLE_DBC, ODBC_con, 1, ODBC_stat, &ODBC_err, ODBC_msg, 100, &ODBC_mlen);
 379                 SQLFreeHandle(SQL_HANDLE_STMT, ODBC_stmt);
 380                 connected = 0;
 381                 return -1;
 382         }
 383         else
 384         {
 385                 if(option_verbose > 3)
 386                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Query Successful!\n");
 387                 connected = 1;
 388         }
 389         return 0;
 390 }
 391
 392 static int odbc_init(void)
 393 {
 394         long int ODBC_err;
 395         short int ODBC_mlen;
 396         int ODBC_res;
 397         char ODBC_msg[200], ODBC_stat[10];
 398
 399         if ( ODBC_env == SQL_NULL_HANDLE || connected == 0 )
 400         {
 401                 ODBC_res = SQLAllocHandle(SQL_HANDLE_ENV, SQL_NULL_HANDLE, &ODBC_env);
 402
 403                 if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 404                 {
 405                         if(option_verbose > 3)
 406                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error AllocHandle\n");
 407                         connected = 0;
 408                         return -1;
 409                 }
 410
 411                 ODBC_res = SQLSetEnvAttr(ODBC_env, SQL_ATTR_ODBC_VERSION, (void*)SQL_OV_ODBC3, 0);
 412
 413                 if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 414                 {
 415                         if(option_verbose > 3)
 416                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error SetEnv\n");
 417                         SQLFreeHandle(SQL_HANDLE_ENV, ODBC_env);
 418                         connected = 0;
 419                         return -1;
 420                 }
 421
 422                 ODBC_res = SQLAllocHandle(SQL_HANDLE_DBC, ODBC_env, &ODBC_con);
 423
 424                 if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 425                 {
 426                         if(option_verbose > 3)
 427                                 ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error AllocHDB %d\n", ODBC_res);
 428                         SQLFreeHandle(SQL_HANDLE_ENV, ODBC_env);
 429                         connected = 0;
 430                         return -1;
 431                 }
 432
 433                 SQLSetConnectAttr(ODBC_con, SQL_LOGIN_TIMEOUT, (SQLPOINTER *)10, 0);
 434         }
 435
 436         ODBC_res = SQLConnect(ODBC_con, (SQLCHAR*)dsn, SQL_NTS, (SQLCHAR*)username, SQL_NTS, (SQLCHAR*)password, SQL_NTS);
 437
 438         if((ODBC_res != SQL_SUCCESS) && (ODBC_res != SQL_SUCCESS_WITH_INFO))
 439         {
 440                 if(option_verbose > 3)
 441                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Error SQLConnect %d\n", ODBC_res);
 442                 SQLGetDiagRec(SQL_HANDLE_DBC, ODBC_con, 1, ODBC_stat, &ODBC_err, ODBC_msg, 100, &ODBC_mlen);
 443                 SQLFreeHandle(SQL_HANDLE_ENV, ODBC_env);
 444                 connected = 0;
 445                 return -1;
 446         }
 447         else
 448         {
 449                 if(option_verbose > 3)
 450                         ast_verbose( VERBOSE_PREFIX_4 "cdr_odbc: Connected to %s\n", dsn);
 451                 connected = 1;
 452         }
 453         return 0;
 454 }
 455
 456 int load_module(void)
 457 {
 458         return odbc_load_module();
 459 }
 460
 461 int unload_module(void)
 462 {
 463         return odbc_unload_module();
 464 }
 465
 466 int reload(void)
 467 {
 468         odbc_unload_module();
 469         return odbc_load_module();
 470 }
 471
 472 int usecount(void)
 473 {
 474         return connected;
 475 }
 476
 477 char *key()
 478 {
 479         return ASTERISK_GPL_KEY;
 480 }