cdr/cdr_adaptive_odbc.c

   1 /*
   2  * Asterisk -- An open source telephony toolkit.
   3  *
   4  * Copyright (C) 2007, Tilghman Lesher
   5  *
   6  * Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
   7  *
   8  * See http://www.asterisk.org for more information about
   9  * the Asterisk project. Please do not directly contact
  10  * any of the maintainers of this project for assistance;
  11  * the project provides a web site, mailing lists and IRC
  12  * channels for your use.
  13  *
  14  * This program is free software, distributed under the terms of
  15  * the GNU General Public License Version 2. See the LICENSE file
  16  * at the top of the source tree.
  17  */
  18
  19 /*! \file
  20  *
  21  * \brief Adaptive ODBC CDR backend
  22  *
  23  * \author Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
  24  * \ingroup cdr_drivers
  25  */
  26
  27 /*** MODULEINFO
  28         <depend>odbc</depend>
  29         <use>unixodbc</use>
  30         <use>iodbc</use>
  31  ***/
  32
  33 #include "asterisk.h"
  34
  35 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
  36
  37 #include <sys/types.h>
  38 #include <time.h>
  39
  40 #include <sql.h>
  41 #include <sqlext.h>
  42 #include <sqltypes.h>
  43
  44 #include "asterisk/config.h"
  45 #include "asterisk/channel.h"
  46 #include "asterisk/lock.h"
  47 #include "asterisk/linkedlists.h"
  48 #include "asterisk/res_odbc.h"
  49 #include "asterisk/cdr.h"
  50 #include "asterisk/module.h"
  51
  52 #define CONFIG  "cdr_adaptive_odbc.conf"
  53
  54 static char *name = "Adaptive ODBC";
  55 /* Optimization to reduce number of memory allocations */
  56 static int maxsize = 512, maxsize2 = 512;
  57
  58 struct columns {
  59         char *name;
  60         char *cdrname;
  61         char *filtervalue;
  62         char *staticvalue;
  63         SQLSMALLINT type;
  64         SQLINTEGER size;
  65         SQLSMALLINT decimals;
  66         SQLSMALLINT radix;
  67         SQLSMALLINT nullable;
  68         SQLINTEGER octetlen;
  69         AST_LIST_ENTRY(columns) list;
  70 };
  71
  72 struct tables {
  73         char *connection;
  74         char *table;
  75         unsigned int usegmtime:1;
  76         AST_LIST_HEAD_NOLOCK(odbc_columns, columns) columns;
  77         AST_RWLIST_ENTRY(tables) list;
  78 };
  79
  80 static AST_RWLIST_HEAD_STATIC(odbc_tables, tables);
  81
  82 static int load_config(void)
  83 {
  84         struct ast_config *cfg;
  85         struct ast_variable *var;
  86         const char *tmp, *catg;
  87         struct tables *tableptr;
  88         struct columns *entry;
  89         struct odbc_obj *obj;
  90         char columnname[80];
  91         char connection[40];
  92         char table[40];
  93         int lenconnection, lentable, usegmtime = 0;
  94         SQLLEN sqlptr;
  95         int res = 0;
  96         SQLHSTMT stmt = NULL;
  97         struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
  98
  99         cfg = ast_config_load(CONFIG, config_flags);
 100         if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
 101                 ast_log(LOG_WARNING, "Unable to load " CONFIG ".  No adaptive ODBC CDRs.\n");
 102                 return -1;
 103         }
 104
 105         for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
 106                 var = ast_variable_browse(cfg, catg);
 107                 if (!var)
 108                         continue;
 109
 110                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
 111                         ast_log(LOG_WARNING, "No connection parameter found in '%s'.  Skipping.\n", catg);
 112                         continue;
 113                 }
 114                 ast_copy_string(connection, tmp, sizeof(connection));
 115                 lenconnection = strlen(connection);
 116
 117                 if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "usegmtime"))) {
 118                         usegmtime = ast_true(tmp);
 119                 }
 120
 121                 /* When loading, we want to be sure we can connect. */
 122                 obj = ast_odbc_request_obj(connection, 1);
 123                 if (!obj) {
 124                         ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ".  Check res_odbc.conf.\n", connection, catg);
 125                         continue;
 126                 }
 127
 128                 if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
 129                         ast_log(LOG_NOTICE, "No table name found.  Assuming 'cdr'.\n");
 130                         tmp = "cdr";
 131                 }
 132                 ast_copy_string(table, tmp, sizeof(table));
 133                 lentable = strlen(table);
 134
 135                 res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
 136                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 137                         ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
 138                         ast_odbc_release_obj(obj);
 139                         continue;
 140                 }
 141
 142                 res = SQLColumns(stmt, NULL, 0, NULL, 0, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
 143                 if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 144                         ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'.  Skipping.\n", connection);
 145                         ast_odbc_release_obj(obj);
 146                         continue;
 147                 }
 148
 149                 tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1);
 150                 if (!tableptr) {
 151                         ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'\n", table, connection);
 152                         ast_odbc_release_obj(obj);
 153                         res = -1;
 154                         break;
 155                 }
 156
 157                 tableptr->usegmtime = usegmtime;
 158                 tableptr->connection = (char *)tableptr + sizeof(*tableptr);
 159                 tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
 160                 ast_copy_string(tableptr->connection, connection, lenconnection + 1);
 161                 ast_copy_string(tableptr->table, table, lentable + 1);
 162
 163                 ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
 164
 165                 /* Check for filters first */
 166                 for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 167                         if (strncmp(var->name, "filter", 6) == 0) {
 168                                 char *cdrvar = ast_strdupa(var->name + 6);
 169                                 cdrvar = ast_strip(cdrvar);
 170                                 ast_verb(3, "Found filter %s for cdr variable %s in %s@%s\n", var->value, cdrvar, tableptr->table, tableptr->connection);
 171
 172                                 entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
 173                                 if (!entry) {
 174                                         ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
 175                                         res = -1;
 176                                         break;
 177                                 }
 178
 179                                 /* NULL column entry means this isn't a column in the database */
 180                                 entry->name = NULL;
 181                                 entry->cdrname = (char *)entry + sizeof(*entry);
 182                                 entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
 183                                 strcpy(entry->cdrname, cdrvar);
 184                                 strcpy(entry->filtervalue, var->value);
 185
 186                                 AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 187                         }
 188                 }
 189
 190                 while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
 191                         char *cdrvar = "", *staticvalue = "";
 192
 193                         SQLGetData(stmt,  4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
 194
 195                         /* Is there an alias for this column? */
 196
 197                         /* NOTE: This seems like a non-optimal parse method, but I'm going
 198                          * for user configuration readability, rather than fast parsing. We
 199                          * really don't parse this file all that often, anyway.
 200                          */
 201                         for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
 202                                 if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
 203                                         char *alias = ast_strdupa(var->name + 5);
 204                                         cdrvar = ast_strip(alias);
 205                                         ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
 206                                         break;
 207                                 } else if (strncmp(var->name, "static", 6) == 0 && strcasecmp(var->value, columnname) == 0) {
 208                                         char *item = ast_strdupa(var->name + 6);
 209                                         item = ast_strip(item);
 210                                         if (item[0] == '"' && item[strlen(item) - 1] == '"') {
 211                                                 /* Remove surrounding quotes */
 212                                                 item[strlen(item) - 1] = '\0';
 213                                                 item++;
 214                                         }
 215                                         staticvalue = item;
 216                                 }
 217                         }
 218
 219                         entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1 + strlen(staticvalue) + 1);
 220                         if (!entry) {
 221                                 ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
 222                                 res = -1;
 223                                 break;
 224                         }
 225                         entry->name = (char *)entry + sizeof(*entry);
 226                         strcpy(entry->name, columnname);
 227
 228                         if (!ast_strlen_zero(cdrvar)) {
 229                                 entry->cdrname = entry->name + strlen(columnname) + 1;
 230                                 strcpy(entry->cdrname, cdrvar);
 231                         } else { /* Point to same place as the column name */
 232                                 entry->cdrname = (char *)entry + sizeof(*entry);
 233                         }
 234
 235                         if (!ast_strlen_zero(staticvalue)) {
 236                                 entry->staticvalue = entry->cdrname + strlen(entry->cdrname) + 1;
 237                                 strcpy(entry->staticvalue, staticvalue);
 238                         }
 239
 240                         SQLGetData(stmt,  5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
 241                         SQLGetData(stmt,  7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
 242                         SQLGetData(stmt,  9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
 243                         SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
 244                         SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
 245                         SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
 246
 247                         /* Specification states that the octenlen should be the maximum number of bytes
 248                          * returned in a char or binary column, but it seems that some drivers just set
 249                          * it to NULL. (Bad Postgres! No biscuit!) */
 250                         if (entry->octetlen == 0)
 251                                 entry->octetlen = entry->size;
 252
 253                         ast_verb(10, "Found %s column with type %hd with len %ld, octetlen %ld, and numlen (%hd,%hd)\n", entry->name, entry->type, (long) entry->size, (long) entry->octetlen, entry->decimals, entry->radix);
 254                         /* Insert column info into column list */
 255                         AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
 256                         res = 0;
 257                 }
 258
 259                 SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 260                 ast_odbc_release_obj(obj);
 261
 262                 if (AST_LIST_FIRST(&(tableptr->columns)))
 263                         AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
 264                 else
 265                         ast_free(tableptr);
 266         }
 267         return res;
 268 }
 269
 270 static int free_config(void)
 271 {
 272         struct tables *table;
 273         struct columns *entry;
 274         while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
 275                 while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
 276                         ast_free(entry);
 277                 }
 278                 ast_free(table);
 279         }
 280         return 0;
 281 }
 282
 283 static SQLHSTMT generic_prepare(struct odbc_obj *obj, void *data)
 284 {
 285         int res, i;
 286         char *sql = data;
 287         SQLHSTMT stmt;
 288         SQLINTEGER nativeerror = 0, numfields = 0;
 289         SQLSMALLINT diagbytes = 0;
 290         unsigned char state[10], diagnostic[256];
 291
 292         res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
 293         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 294                 ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
 295                 return NULL;
 296         }
 297
 298         res = SQLPrepare(stmt, (unsigned char *)sql, SQL_NTS);
 299         if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
 300                 ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", sql);
 301                 SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
 302                 for (i = 0; i < numfields; i++) {
 303                         SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
 304                         ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
 305                         if (i > 10) {
 306                                 ast_log(LOG_WARNING, "Oh, that was good.  There are really %d diagnostics?\n", (int)numfields);
 307                                 break;
 308                         }
 309                 }
 310                 SQLFreeHandle (SQL_HANDLE_STMT, stmt);
 311                 return NULL;
 312         }
 313
 314         return stmt;
 315 }
 316
 317 #define LENGTHEN_BUF1(size)                                                                                                             \
 318                         do {                                                                                                                            \
 319                                 /* Lengthen buffer, if necessary */                                                             \
 320                                 if (sql->used + size + 1 > sql->len) {                          \
 321                                         if (ast_str_make_space(&sql, ((sql->len + size + 1) / 512 + 1) * 512) != 0) { \
 322                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 323                                                 ast_free(sql);                                                                                  \
 324                                                 ast_free(sql2);                                                                                 \
 325                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 326                                                 return -1;                                                                                              \
 327                                         }                                                                                                                       \
 328                                 }                                                                                                                               \
 329                         } while (0)
 330
 331 #define LENGTHEN_BUF2(size)                                                                                                             \
 332                         do {                                                                                                                            \
 333                                 if (sql2->used + size + 1 > sql2->len) {                        \
 334                                         if (ast_str_make_space(&sql2, ((sql2->len + size + 3) / 512 + 1) * 512) != 0) { \
 335                                                 ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
 336                                                 ast_free(sql);                                                                                  \
 337                                                 ast_free(sql2);                                                                                 \
 338                                                 AST_RWLIST_UNLOCK(&odbc_tables);                                                \
 339                                                 return -1;                                                                                              \
 340                                         }                                                                                                                       \
 341                                 }                                                                                                                               \
 342                         } while (0)
 343
 344 static int odbc_log(struct ast_cdr *cdr)
 345 {
 346         struct tables *tableptr;
 347         struct columns *entry;
 348         struct odbc_obj *obj;
 349         struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
 350         char *tmp;
 351         char colbuf[1024], *colptr;
 352         SQLHSTMT stmt = NULL;
 353         SQLLEN rows = 0;
 354
 355         if (!sql || !sql2) {
 356                 if (sql)
 357                         ast_free(sql);
 358                 if (sql2)
 359                         ast_free(sql2);
 360                 return -1;
 361         }
 362
 363         if (AST_RWLIST_RDLOCK(&odbc_tables)) {
 364                 ast_log(LOG_ERROR, "Unable to lock table list.  Insert CDR(s) failed.\n");
 365                 ast_free(sql);
 366                 ast_free(sql2);
 367                 return -1;
 368         }
 369
 370         AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
 371                 ast_str_set(&sql, 0, "INSERT INTO %s (", tableptr->table);
 372                 ast_str_set(&sql2, 0, " VALUES (");
 373
 374                 /* No need to check the connection now; we'll handle any failure in prepare_and_execute */
 375                 if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
 376                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 377                         continue;
 378                 }
 379
 380                 AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
 381                         int datefield = 0;
 382                         if (strcasecmp(entry->cdrname, "start") == 0) {
 383                                 datefield = 1;
 384                         } else if (strcasecmp(entry->cdrname, "answer") == 0) {
 385                                 datefield = 2;
 386                         } else if (strcasecmp(entry->cdrname, "end") == 0) {
 387                                 datefield = 3;
 388                         }
 389
 390                         /* Check if we have a similarly named variable */
 391                         if (entry->staticvalue) {
 392                                 colptr = ast_strdupa(entry->staticvalue);
 393                         } else if (datefield && tableptr->usegmtime) {
 394                                 struct timeval date_tv = (datefield == 1) ? cdr->start : (datefield == 2) ? cdr->answer : cdr->end;
 395                                 struct ast_tm tm = { 0, };
 396                                 ast_localtime(&date_tv, &tm, "UTC");
 397                                 ast_strftime(colbuf, sizeof(colbuf), "%Y-%m-%d %H:%M:%S", &tm);
 398                                 colptr = colbuf;
 399                         } else {
 400                                 ast_cdr_getvar(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), 0, datefield ? 0 : 1);
 401                         }
 402
 403                         if (colptr) {
 404                                 /* Check first if the column filters this entry.  Note that this
 405                                  * is very specifically NOT ast_strlen_zero(), because the filter
 406                                  * could legitimately specify that the field is blank, which is
 407                                  * different from the field being unspecified (NULL). */
 408                                 if (entry->filtervalue && strcasecmp(colptr, entry->filtervalue) != 0) {
 409                                         ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
 410                                                 " '%s'.  Cancelling this CDR.\n",
 411                                                 entry->cdrname, colptr, entry->filtervalue);
 412                                         goto early_release;
 413                                 }
 414
 415                                 /* Only a filter? */
 416                                 if (ast_strlen_zero(entry->name))
 417                                         continue;
 418
 419                                 LENGTHEN_BUF1(strlen(entry->name));
 420
 421                                 switch (entry->type) {
 422                                 case SQL_CHAR:
 423                                 case SQL_VARCHAR:
 424                                 case SQL_LONGVARCHAR:
 425                                 case SQL_BINARY:
 426                                 case SQL_VARBINARY:
 427                                 case SQL_LONGVARBINARY:
 428                                 case SQL_GUID:
 429                                         /* For these two field names, get the rendered form, instead of the raw
 430                                          * form (but only when we're dealing with a character-based field).
 431                                          */
 432                                         if (strcasecmp(entry->name, "disposition") == 0) {
 433                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 434                                         } else if (strcasecmp(entry->name, "amaflags") == 0) {
 435                                                 ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
 436                                         }
 437
 438                                         /* Truncate too-long fields */
 439                                         if (entry->type != SQL_GUID) {
 440                                                 if (strlen(colptr) > entry->octetlen) {
 441                                                         colptr[entry->octetlen] = '\0';
 442                                                 }
 443                                         }
 444
 445                                         ast_str_append(&sql, 0, "%s,", entry->name);
 446                                         LENGTHEN_BUF2(strlen(colptr));
 447
 448                                         /* Encode value, with escaping */
 449                                         ast_str_append(&sql2, 0, "'");
 450                                         for (tmp = colptr; *tmp; tmp++) {
 451                                                 if (*tmp == '\'') {
 452                                                         ast_str_append(&sql2, 0, "''");
 453                                                 } else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
 454                                                         ast_str_append(&sql2, 0, "\\\\");
 455                                                 } else {
 456                                                         ast_str_append(&sql2, 0, "%c", *tmp);
 457                                                 }
 458                                         }
 459                                         ast_str_append(&sql2, 0, "',");
 460                                         break;
 461                                 case SQL_TYPE_DATE:
 462                                         {
 463                                                 int year = 0, month = 0, day = 0;
 464                                                 if (sscanf(colptr, "%d-%d-%d", &year, &month, &day) != 3 || year <= 0 ||
 465                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 466                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 467                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 468                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 469                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 470                                                         (month == 2 && year % 4 != 0 && day > 28)) {
 471                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
 472                                                         break;
 473                                                 }
 474
 475                                                 if (year > 0 && year < 100) {
 476                                                         year += 2000;
 477                                                 }
 478
 479                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 480                                                 LENGTHEN_BUF2(17);
 481                                                 ast_str_append(&sql2, 0, "{ d '%04d-%02d-%02d' },", year, month, day);
 482                                         }
 483                                         break;
 484                                 case SQL_TYPE_TIME:
 485                                         {
 486                                                 int hour = 0, minute = 0, second = 0;
 487                                                 int count = sscanf(colptr, "%d:%d:%d", &hour, &minute, &second);
 488
 489                                                 if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
 490                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
 491                                                         break;
 492                                                 }
 493
 494                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 495                                                 LENGTHEN_BUF2(15);
 496                                                 ast_str_append(&sql2, 0, "{ t '%02d:%02d:%02d' },", hour, minute, second);
 497                                         }
 498                                         break;
 499                                 case SQL_TYPE_TIMESTAMP:
 500                                 case SQL_TIMESTAMP:
 501                                         {
 502                                                 int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
 503                                                 int count = sscanf(colptr, "%d-%d-%d %d:%d:%d", &year, &month, &day, &hour, &minute, &second);
 504
 505                                                 if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
 506                                                         month <= 0 || month > 12 || day < 0 || day > 31 ||
 507                                                         ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
 508                                                         (month == 2 && year % 400 == 0 && day > 29) ||
 509                                                         (month == 2 && year % 100 == 0 && day > 28) ||
 510                                                         (month == 2 && year % 4 == 0 && day > 29) ||
 511                                                         (month == 2 && year % 4 != 0 && day > 28) ||
 512                                                         hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
 513                                                         ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
 514                                                         break;
 515                                                 }
 516
 517                                                 if (year > 0 && year < 100) {
 518                                                         year += 2000;
 519                                                 }
 520
 521                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 522                                                 LENGTHEN_BUF2(26);
 523                                                 ast_str_append(&sql2, 0, "{ ts '%04d-%02d-%02d %02d:%02d:%02d' },", year, month, day, hour, minute, second);
 524                                         }
 525                                         break;
 526                                 case SQL_INTEGER:
 527                                         {
 528                                                 int integer = 0;
 529                                                 if (sscanf(colptr, "%d", &integer) != 1) {
 530                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 531                                                         break;
 532                                                 }
 533
 534                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 535                                                 LENGTHEN_BUF2(12);
 536                                                 ast_str_append(&sql2, 0, "%d,", integer);
 537                                         }
 538                                         break;
 539                                 case SQL_BIGINT:
 540                                         {
 541                                                 long long integer = 0;
 542                                                 if (sscanf(colptr, "%lld", &integer) != 1) {
 543                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 544                                                         break;
 545                                                 }
 546
 547                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 548                                                 LENGTHEN_BUF2(24);
 549                                                 ast_str_append(&sql2, 0, "%lld,", integer);
 550                                         }
 551                                         break;
 552                                 case SQL_SMALLINT:
 553                                         {
 554                                                 short integer = 0;
 555                                                 if (sscanf(colptr, "%hd", &integer) != 1) {
 556                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 557                                                         break;
 558                                                 }
 559
 560                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 561                                                 LENGTHEN_BUF2(6);
 562                                                 ast_str_append(&sql2, 0, "%d,", integer);
 563                                         }
 564                                         break;
 565                                 case SQL_TINYINT:
 566                                         {
 567                                                 char integer = 0;
 568                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 569                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 570                                                         break;
 571                                                 }
 572
 573                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 574                                                 LENGTHEN_BUF2(4);
 575                                                 ast_str_append(&sql2, 0, "%d,", integer);
 576                                         }
 577                                         break;
 578                                 case SQL_BIT:
 579                                         {
 580                                                 char integer = 0;
 581                                                 if (sscanf(colptr, "%hhd", &integer) != 1) {
 582                                                         ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
 583                                                         break;
 584                                                 }
 585                                                 if (integer != 0)
 586                                                         integer = 1;
 587
 588                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 589                                                 LENGTHEN_BUF2(2);
 590                                                 ast_str_append(&sql2, 0, "%d,", integer);
 591                                         }
 592                                         break;
 593                                 case SQL_NUMERIC:
 594                                 case SQL_DECIMAL:
 595                                         {
 596                                                 double number = 0.0;
 597                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 598                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 599                                                         break;
 600                                                 }
 601
 602                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 603                                                 LENGTHEN_BUF2(entry->decimals);
 604                                                 ast_str_append(&sql2, 0, "%*.*lf,", entry->decimals, entry->radix, number);
 605                                         }
 606                                         break;
 607                                 case SQL_FLOAT:
 608                                 case SQL_REAL:
 609                                 case SQL_DOUBLE:
 610                                         {
 611                                                 double number = 0.0;
 612                                                 if (sscanf(colptr, "%lf", &number) != 1) {
 613                                                         ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
 614                                                         break;
 615                                                 }
 616
 617                                                 ast_str_append(&sql, 0, "%s,", entry->name);
 618                                                 LENGTHEN_BUF2(entry->decimals);
 619                                                 ast_str_append(&sql2, 0, "%lf,", number);
 620                                         }
 621                                         break;
 622                                 default:
 623                                         ast_log(LOG_WARNING, "Column type %d (field '%s:%s:%s') is unsupported at this time.\n", entry->type, tableptr->connection, tableptr->table, entry->name);
 624                                 }
 625                         }
 626                 }
 627
 628                 /* Concatenate the two constructed buffers */
 629                 LENGTHEN_BUF1(sql2->used);
 630                 sql->str[sql->used - 1] = ')';
 631                 sql2->str[sql2->used - 1] = ')';
 632                 ast_str_append(&sql, 0, "%s", sql2->str);
 633
 634                 ast_verb(11, "[%s]\n", sql->str);
 635
 636                 stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, sql->str);
 637                 if (stmt) {
 638                         SQLRowCount(stmt, &rows);
 639                         SQLFreeHandle(SQL_HANDLE_STMT, stmt);
 640                 }
 641                 if (rows == 0) {
 642                         ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, sql->str);
 643                 }
 644 early_release:
 645                 ast_odbc_release_obj(obj);
 646         }
 647         AST_RWLIST_UNLOCK(&odbc_tables);
 648
 649         /* Next time, just allocate buffers that are that big to start with. */
 650         if (sql->used > maxsize) {
 651                 maxsize = sql->used;
 652         }
 653         if (sql2->used > maxsize2) {
 654                 maxsize2 = sql2->used;
 655         }
 656
 657         ast_free(sql);
 658         ast_free(sql2);
 659         return 0;
 660 }
 661
 662 static int unload_module(void)
 663 {
 664         ast_cdr_unregister(name);
 665         usleep(1);
 666         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 667                 ast_cdr_register(name, ast_module_info->description, odbc_log);
 668                 ast_log(LOG_ERROR, "Unable to lock column list.  Unload failed.\n");
 669                 return -1;
 670         }
 671
 672         free_config();
 673         AST_RWLIST_UNLOCK(&odbc_tables);
 674         return 0;
 675 }
 676
 677 static int load_module(void)
 678 {
 679         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 680                 ast_log(LOG_ERROR, "Unable to lock column list.  Load failed.\n");
 681                 return 0;
 682         }
 683
 684         load_config();
 685         AST_RWLIST_UNLOCK(&odbc_tables);
 686         ast_cdr_register(name, ast_module_info->description, odbc_log);
 687         return 0;
 688 }
 689
 690 static int reload(void)
 691 {
 692         if (AST_RWLIST_WRLOCK(&odbc_tables)) {
 693                 ast_log(LOG_ERROR, "Unable to lock column list.  Reload failed.\n");
 694                 return -1;
 695         }
 696
 697         free_config();
 698         load_config();
 699         AST_RWLIST_UNLOCK(&odbc_tables);
 700         return 0;
 701 }
 702
 703 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "Adaptive ODBC CDR backend",
 704         .load = load_module,
 705         .unload = unload_module,
 706         .reload = reload,
 707 );
 708