Mon Mar 19 11:30:23 2012

Asterisk developer's documentation


cdr_adaptive_odbc.c

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00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * Copyright (C) 2007, Tilghman Lesher
00005  *
00006  * Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
00007  *
00008  * See http://www.asterisk.org for more information about
00009  * the Asterisk project. Please do not directly contact
00010  * any of the maintainers of this project for assistance;
00011  * the project provides a web site, mailing lists and IRC
00012  * channels for your use.
00013  *
00014  * This program is free software, distributed under the terms of
00015  * the GNU General Public License Version 2. See the LICENSE file
00016  * at the top of the source tree.
00017  */
00018 
00019 /*!
00020  * \file
00021  * \brief Adaptive ODBC CDR backend
00022  *
00023  * \author Tilghman Lesher <cdr_adaptive_odbc__v1@the-tilghman.com>
00024  * \ingroup cdr_drivers
00025  */
00026 
00027 /*** MODULEINFO
00028    <depend>res_odbc</depend>
00029    <support_level>core</support_level>
00030  ***/
00031 
00032 #include "asterisk.h"
00033 
00034 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 328209 $")
00035 
00036 #include <sys/types.h>
00037 #include <time.h>
00038 
00039 #include <sql.h>
00040 #include <sqlext.h>
00041 #include <sqltypes.h>
00042 
00043 #include "asterisk/config.h"
00044 #include "asterisk/channel.h"
00045 #include "asterisk/lock.h"
00046 #include "asterisk/linkedlists.h"
00047 #include "asterisk/res_odbc.h"
00048 #include "asterisk/cdr.h"
00049 #include "asterisk/module.h"
00050 
00051 #define  CONFIG   "cdr_adaptive_odbc.conf"
00052 
00053 static const char name[] = "Adaptive ODBC";
00054 /* Optimization to reduce number of memory allocations */
00055 static int maxsize = 512, maxsize2 = 512;
00056 
00057 struct columns {
00058    char *name;
00059    char *cdrname;
00060    char *filtervalue;
00061    char *staticvalue;
00062    SQLSMALLINT type;
00063    SQLINTEGER size;
00064    SQLSMALLINT decimals;
00065    SQLSMALLINT radix;
00066    SQLSMALLINT nullable;
00067    SQLINTEGER octetlen;
00068    AST_LIST_ENTRY(columns) list;
00069 };
00070 
00071 struct tables {
00072    char *connection;
00073    char *table;
00074    unsigned int usegmtime:1;
00075    AST_LIST_HEAD_NOLOCK(odbc_columns, columns) columns;
00076    AST_RWLIST_ENTRY(tables) list;
00077 };
00078 
00079 static AST_RWLIST_HEAD_STATIC(odbc_tables, tables);
00080 
00081 static int load_config(void)
00082 {
00083    struct ast_config *cfg;
00084    struct ast_variable *var;
00085    const char *tmp, *catg;
00086    struct tables *tableptr;
00087    struct columns *entry;
00088    struct odbc_obj *obj;
00089    char columnname[80];
00090    char connection[40];
00091    char table[40];
00092    int lenconnection, lentable, usegmtime = 0;
00093    SQLLEN sqlptr;
00094    int res = 0;
00095    SQLHSTMT stmt = NULL;
00096    struct ast_flags config_flags = { 0 }; /* Part of our config comes from the database */
00097 
00098    cfg = ast_config_load(CONFIG, config_flags);
00099    if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
00100       ast_log(LOG_WARNING, "Unable to load " CONFIG ".  No adaptive ODBC CDRs.\n");
00101       return -1;
00102    }
00103 
00104    for (catg = ast_category_browse(cfg, NULL); catg; catg = ast_category_browse(cfg, catg)) {
00105       var = ast_variable_browse(cfg, catg);
00106       if (!var)
00107          continue;
00108 
00109       if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "connection"))) {
00110          ast_log(LOG_WARNING, "No connection parameter found in '%s'.  Skipping.\n", catg);
00111          continue;
00112       }
00113       ast_copy_string(connection, tmp, sizeof(connection));
00114       lenconnection = strlen(connection);
00115 
00116       if (!ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "usegmtime"))) {
00117          usegmtime = ast_true(tmp);
00118       }
00119 
00120       /* When loading, we want to be sure we can connect. */
00121       obj = ast_odbc_request_obj(connection, 1);
00122       if (!obj) {
00123          ast_log(LOG_WARNING, "No such connection '%s' in the '%s' section of " CONFIG ".  Check res_odbc.conf.\n", connection, catg);
00124          continue;
00125       }
00126 
00127       if (ast_strlen_zero(tmp = ast_variable_retrieve(cfg, catg, "table"))) {
00128          ast_log(LOG_NOTICE, "No table name found.  Assuming 'cdr'.\n");
00129          tmp = "cdr";
00130       }
00131       ast_copy_string(table, tmp, sizeof(table));
00132       lentable = strlen(table);
00133 
00134       res = SQLAllocHandle(SQL_HANDLE_STMT, obj->con, &stmt);
00135       if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
00136          ast_log(LOG_WARNING, "SQL Alloc Handle failed on connection '%s'!\n", connection);
00137          ast_odbc_release_obj(obj);
00138          continue;
00139       }
00140 
00141       res = SQLColumns(stmt, NULL, 0, NULL, 0, (unsigned char *)table, SQL_NTS, (unsigned char *)"%", SQL_NTS);
00142       if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
00143          ast_log(LOG_ERROR, "Unable to query database columns on connection '%s'.  Skipping.\n", connection);
00144          ast_odbc_release_obj(obj);
00145          continue;
00146       }
00147 
00148       tableptr = ast_calloc(sizeof(char), sizeof(*tableptr) + lenconnection + 1 + lentable + 1);
00149       if (!tableptr) {
00150          ast_log(LOG_ERROR, "Out of memory creating entry for table '%s' on connection '%s'\n", table, connection);
00151          ast_odbc_release_obj(obj);
00152          res = -1;
00153          break;
00154       }
00155 
00156       tableptr->usegmtime = usegmtime;
00157       tableptr->connection = (char *)tableptr + sizeof(*tableptr);
00158       tableptr->table = (char *)tableptr + sizeof(*tableptr) + lenconnection + 1;
00159       ast_copy_string(tableptr->connection, connection, lenconnection + 1);
00160       ast_copy_string(tableptr->table, table, lentable + 1);
00161 
00162       ast_verb(3, "Found adaptive CDR table %s@%s.\n", tableptr->table, tableptr->connection);
00163 
00164       /* Check for filters first */
00165       for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
00166          if (strncmp(var->name, "filter", 6) == 0) {
00167             char *cdrvar = ast_strdupa(var->name + 6);
00168             cdrvar = ast_strip(cdrvar);
00169             ast_verb(3, "Found filter %s for cdr variable %s in %s@%s\n", var->value, cdrvar, tableptr->table, tableptr->connection);
00170 
00171             entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(cdrvar) + 1 + strlen(var->value) + 1);
00172             if (!entry) {
00173                ast_log(LOG_ERROR, "Out of memory creating filter entry for CDR variable '%s' in table '%s' on connection '%s'\n", cdrvar, table, connection);
00174                res = -1;
00175                break;
00176             }
00177 
00178             /* NULL column entry means this isn't a column in the database */
00179             entry->name = NULL;
00180             entry->cdrname = (char *)entry + sizeof(*entry);
00181             entry->filtervalue = (char *)entry + sizeof(*entry) + strlen(cdrvar) + 1;
00182             strcpy(entry->cdrname, cdrvar);
00183             strcpy(entry->filtervalue, var->value);
00184 
00185             AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
00186          }
00187       }
00188 
00189       while ((res = SQLFetch(stmt)) != SQL_NO_DATA && res != SQL_ERROR) {
00190          char *cdrvar = "", *staticvalue = "";
00191 
00192          SQLGetData(stmt,  4, SQL_C_CHAR, columnname, sizeof(columnname), &sqlptr);
00193 
00194          /* Is there an alias for this column? */
00195 
00196          /* NOTE: This seems like a non-optimal parse method, but I'm going
00197           * for user configuration readability, rather than fast parsing. We
00198           * really don't parse this file all that often, anyway.
00199           */
00200          for (var = ast_variable_browse(cfg, catg); var; var = var->next) {
00201             if (strncmp(var->name, "alias", 5) == 0 && strcasecmp(var->value, columnname) == 0) {
00202                char *alias = ast_strdupa(var->name + 5);
00203                cdrvar = ast_strip(alias);
00204                ast_verb(3, "Found alias %s for column %s in %s@%s\n", cdrvar, columnname, tableptr->table, tableptr->connection);
00205                break;
00206             } else if (strncmp(var->name, "static", 6) == 0 && strcasecmp(var->value, columnname) == 0) {
00207                char *item = ast_strdupa(var->name + 6);
00208                item = ast_strip(item);
00209                if (item[0] == '"' && item[strlen(item) - 1] == '"') {
00210                   /* Remove surrounding quotes */
00211                   item[strlen(item) - 1] = '\0';
00212                   item++;
00213                }
00214                staticvalue = item;
00215             }
00216          }
00217 
00218          entry = ast_calloc(sizeof(char), sizeof(*entry) + strlen(columnname) + 1 + strlen(cdrvar) + 1 + strlen(staticvalue) + 1);
00219          if (!entry) {
00220             ast_log(LOG_ERROR, "Out of memory creating entry for column '%s' in table '%s' on connection '%s'\n", columnname, table, connection);
00221             res = -1;
00222             break;
00223          }
00224          entry->name = (char *)entry + sizeof(*entry);
00225          strcpy(entry->name, columnname);
00226 
00227          if (!ast_strlen_zero(cdrvar)) {
00228             entry->cdrname = entry->name + strlen(columnname) + 1;
00229             strcpy(entry->cdrname, cdrvar);
00230          } else { /* Point to same place as the column name */
00231             entry->cdrname = (char *)entry + sizeof(*entry);
00232          }
00233 
00234          if (!ast_strlen_zero(staticvalue)) {
00235             entry->staticvalue = entry->cdrname + strlen(entry->cdrname) + 1;
00236             strcpy(entry->staticvalue, staticvalue);
00237          }
00238 
00239          SQLGetData(stmt,  5, SQL_C_SHORT, &entry->type, sizeof(entry->type), NULL);
00240          SQLGetData(stmt,  7, SQL_C_LONG, &entry->size, sizeof(entry->size), NULL);
00241          SQLGetData(stmt,  9, SQL_C_SHORT, &entry->decimals, sizeof(entry->decimals), NULL);
00242          SQLGetData(stmt, 10, SQL_C_SHORT, &entry->radix, sizeof(entry->radix), NULL);
00243          SQLGetData(stmt, 11, SQL_C_SHORT, &entry->nullable, sizeof(entry->nullable), NULL);
00244          SQLGetData(stmt, 16, SQL_C_LONG, &entry->octetlen, sizeof(entry->octetlen), NULL);
00245 
00246          /* Specification states that the octenlen should be the maximum number of bytes
00247           * returned in a char or binary column, but it seems that some drivers just set
00248           * it to NULL. (Bad Postgres! No biscuit!) */
00249          if (entry->octetlen == 0)
00250             entry->octetlen = entry->size;
00251 
00252          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);
00253          /* Insert column info into column list */
00254          AST_LIST_INSERT_TAIL(&(tableptr->columns), entry, list);
00255          res = 0;
00256       }
00257 
00258       SQLFreeHandle(SQL_HANDLE_STMT, stmt);
00259       ast_odbc_release_obj(obj);
00260 
00261       if (AST_LIST_FIRST(&(tableptr->columns)))
00262          AST_RWLIST_INSERT_TAIL(&odbc_tables, tableptr, list);
00263       else
00264          ast_free(tableptr);
00265    }
00266    return res;
00267 }
00268 
00269 static int free_config(void)
00270 {
00271    struct tables *table;
00272    struct columns *entry;
00273    while ((table = AST_RWLIST_REMOVE_HEAD(&odbc_tables, list))) {
00274       while ((entry = AST_LIST_REMOVE_HEAD(&(table->columns), list))) {
00275          ast_free(entry);
00276       }
00277       ast_free(table);
00278    }
00279    return 0;
00280 }
00281 
00282 static SQLHSTMT generic_prepare(struct odbc_obj *obj, void *data)
00283 {
00284    int res, i;
00285    SQLHSTMT stmt;
00286    SQLINTEGER nativeerror = 0, numfields = 0;
00287    SQLSMALLINT diagbytes = 0;
00288    unsigned char state[10], diagnostic[256];
00289 
00290    res = SQLAllocHandle (SQL_HANDLE_STMT, obj->con, &stmt);
00291    if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
00292       ast_log(LOG_WARNING, "SQL Alloc Handle failed!\n");
00293       return NULL;
00294    }
00295 
00296    res = SQLPrepare(stmt, (unsigned char *) data, SQL_NTS);
00297    if ((res != SQL_SUCCESS) && (res != SQL_SUCCESS_WITH_INFO)) {
00298       ast_log(LOG_WARNING, "SQL Prepare failed![%s]\n", (char *) data);
00299       SQLGetDiagField(SQL_HANDLE_STMT, stmt, 1, SQL_DIAG_NUMBER, &numfields, SQL_IS_INTEGER, &diagbytes);
00300       for (i = 0; i < numfields; i++) {
00301          SQLGetDiagRec(SQL_HANDLE_STMT, stmt, i + 1, state, &nativeerror, diagnostic, sizeof(diagnostic), &diagbytes);
00302          ast_log(LOG_WARNING, "SQL Execute returned an error %d: %s: %s (%d)\n", res, state, diagnostic, diagbytes);
00303          if (i > 10) {
00304             ast_log(LOG_WARNING, "Oh, that was good.  There are really %d diagnostics?\n", (int)numfields);
00305             break;
00306          }
00307       }
00308       SQLFreeHandle (SQL_HANDLE_STMT, stmt);
00309       return NULL;
00310    }
00311 
00312    return stmt;
00313 }
00314 
00315 #define LENGTHEN_BUF1(size)                                          \
00316          do {                                               \
00317             /* Lengthen buffer, if necessary */                      \
00318             if (ast_str_strlen(sql) + size + 1 > ast_str_size(sql)) {      \
00319                if (ast_str_make_space(&sql, ((ast_str_size(sql) + size + 1) / 512 + 1) * 512) != 0) { \
00320                   ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
00321                   ast_free(sql);                               \
00322                   ast_free(sql2);                                 \
00323                   AST_RWLIST_UNLOCK(&odbc_tables);                \
00324                   return -1;                                   \
00325                }                                            \
00326             }                                               \
00327          } while (0)
00328 
00329 #define LENGTHEN_BUF2(size)                                          \
00330          do {                                               \
00331             if (ast_str_strlen(sql2) + size + 1 > ast_str_size(sql2)) {    \
00332                if (ast_str_make_space(&sql2, ((ast_str_size(sql2) + size + 3) / 512 + 1) * 512) != 0) { \
00333                   ast_log(LOG_ERROR, "Unable to allocate sufficient memory.  Insert CDR '%s:%s' failed.\n", tableptr->connection, tableptr->table); \
00334                   ast_free(sql);                               \
00335                   ast_free(sql2);                                 \
00336                   AST_RWLIST_UNLOCK(&odbc_tables);                \
00337                   return -1;                                   \
00338                }                                            \
00339             }                                               \
00340          } while (0)
00341 
00342 static int odbc_log(struct ast_cdr *cdr)
00343 {
00344    struct tables *tableptr;
00345    struct columns *entry;
00346    struct odbc_obj *obj;
00347    struct ast_str *sql = ast_str_create(maxsize), *sql2 = ast_str_create(maxsize2);
00348    char *tmp;
00349    char colbuf[1024], *colptr;
00350    SQLHSTMT stmt = NULL;
00351    SQLLEN rows = 0;
00352 
00353    if (!sql || !sql2) {
00354       if (sql)
00355          ast_free(sql);
00356       if (sql2)
00357          ast_free(sql2);
00358       return -1;
00359    }
00360 
00361    if (AST_RWLIST_RDLOCK(&odbc_tables)) {
00362       ast_log(LOG_ERROR, "Unable to lock table list.  Insert CDR(s) failed.\n");
00363       ast_free(sql);
00364       ast_free(sql2);
00365       return -1;
00366    }
00367 
00368    AST_LIST_TRAVERSE(&odbc_tables, tableptr, list) {
00369       int first = 1;
00370       ast_str_set(&sql, 0, "INSERT INTO %s (", tableptr->table);
00371       ast_str_set(&sql2, 0, " VALUES (");
00372 
00373       /* No need to check the connection now; we'll handle any failure in prepare_and_execute */
00374       if (!(obj = ast_odbc_request_obj(tableptr->connection, 0))) {
00375          ast_log(LOG_WARNING, "cdr_adaptive_odbc: Unable to retrieve database handle for '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, ast_str_buffer(sql));
00376          continue;
00377       }
00378 
00379       AST_LIST_TRAVERSE(&(tableptr->columns), entry, list) {
00380          int datefield = 0;
00381          if (strcasecmp(entry->cdrname, "start") == 0) {
00382             datefield = 1;
00383          } else if (strcasecmp(entry->cdrname, "answer") == 0) {
00384             datefield = 2;
00385          } else if (strcasecmp(entry->cdrname, "end") == 0) {
00386             datefield = 3;
00387          }
00388 
00389          /* Check if we have a similarly named variable */
00390          if (entry->staticvalue) {
00391             colptr = ast_strdupa(entry->staticvalue);
00392          } else if (datefield && tableptr->usegmtime) {
00393             struct timeval date_tv = (datefield == 1) ? cdr->start : (datefield == 2) ? cdr->answer : cdr->end;
00394             struct ast_tm tm = { 0, };
00395             ast_localtime(&date_tv, &tm, "UTC");
00396             ast_strftime(colbuf, sizeof(colbuf), "%Y-%m-%d %H:%M:%S", &tm);
00397             colptr = colbuf;
00398          } else {
00399             ast_cdr_getvar(cdr, entry->cdrname, &colptr, colbuf, sizeof(colbuf), 0, datefield ? 0 : 1);
00400          }
00401 
00402          if (colptr) {
00403             /* Check first if the column filters this entry.  Note that this
00404              * is very specifically NOT ast_strlen_zero(), because the filter
00405              * could legitimately specify that the field is blank, which is
00406              * different from the field being unspecified (NULL). */
00407             if (entry->filtervalue && strcasecmp(colptr, entry->filtervalue) != 0) {
00408                ast_verb(4, "CDR column '%s' with value '%s' does not match filter of"
00409                   " '%s'.  Cancelling this CDR.\n",
00410                   entry->cdrname, colptr, entry->filtervalue);
00411                goto early_release;
00412             }
00413 
00414             /* Only a filter? */
00415             if (ast_strlen_zero(entry->name))
00416                continue;
00417 
00418             LENGTHEN_BUF1(strlen(entry->name));
00419 
00420             switch (entry->type) {
00421             case SQL_CHAR:
00422             case SQL_VARCHAR:
00423             case SQL_LONGVARCHAR:
00424             case SQL_BINARY:
00425             case SQL_VARBINARY:
00426             case SQL_LONGVARBINARY:
00427             case SQL_GUID:
00428                /* For these two field names, get the rendered form, instead of the raw
00429                 * form (but only when we're dealing with a character-based field).
00430                 */
00431                if (strcasecmp(entry->name, "disposition") == 0) {
00432                   ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
00433                } else if (strcasecmp(entry->name, "amaflags") == 0) {
00434                   ast_cdr_getvar(cdr, entry->name, &colptr, colbuf, sizeof(colbuf), 0, 0);
00435                }
00436 
00437                /* Truncate too-long fields */
00438                if (entry->type != SQL_GUID) {
00439                   if (strlen(colptr) > entry->octetlen) {
00440                      colptr[entry->octetlen] = '\0';
00441                   }
00442                }
00443 
00444                ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00445                LENGTHEN_BUF2(strlen(colptr));
00446 
00447                /* Encode value, with escaping */
00448                ast_str_append(&sql2, 0, "%s'", first ? "" : ",");
00449                for (tmp = colptr; *tmp; tmp++) {
00450                   if (*tmp == '\'') {
00451                      ast_str_append(&sql2, 0, "''");
00452                   } else if (*tmp == '\\' && ast_odbc_backslash_is_escape(obj)) {
00453                      ast_str_append(&sql2, 0, "\\\\");
00454                   } else {
00455                      ast_str_append(&sql2, 0, "%c", *tmp);
00456                   }
00457                }
00458                ast_str_append(&sql2, 0, "'");
00459                break;
00460             case SQL_TYPE_DATE:
00461                if (ast_strlen_zero(colptr)) {
00462                   continue;
00463                } else {
00464                   int year = 0, month = 0, day = 0;
00465                   if (sscanf(colptr, "%4d-%2d-%2d", &year, &month, &day) != 3 || year <= 0 ||
00466                      month <= 0 || month > 12 || day < 0 || day > 31 ||
00467                      ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
00468                      (month == 2 && year % 400 == 0 && day > 29) ||
00469                      (month == 2 && year % 100 == 0 && day > 28) ||
00470                      (month == 2 && year % 4 == 0 && day > 29) ||
00471                      (month == 2 && year % 4 != 0 && day > 28)) {
00472                      ast_log(LOG_WARNING, "CDR variable %s is not a valid date ('%s').\n", entry->name, colptr);
00473                      continue;
00474                   }
00475 
00476                   if (year > 0 && year < 100) {
00477                      year += 2000;
00478                   }
00479 
00480                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00481                   LENGTHEN_BUF2(17);
00482                   ast_str_append(&sql2, 0, "%s{ d '%04d-%02d-%02d' }", first ? "" : ",", year, month, day);
00483                }
00484                break;
00485             case SQL_TYPE_TIME:
00486                if (ast_strlen_zero(colptr)) {
00487                   continue;
00488                } else {
00489                   int hour = 0, minute = 0, second = 0;
00490                   int count = sscanf(colptr, "%2d:%2d:%2d", &hour, &minute, &second);
00491 
00492                   if ((count != 2 && count != 3) || hour < 0 || hour > 23 || minute < 0 || minute > 59 || second < 0 || second > 59) {
00493                      ast_log(LOG_WARNING, "CDR variable %s is not a valid time ('%s').\n", entry->name, colptr);
00494                      continue;
00495                   }
00496 
00497                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00498                   LENGTHEN_BUF2(15);
00499                   ast_str_append(&sql2, 0, "%s{ t '%02d:%02d:%02d' }", first ? "" : ",", hour, minute, second);
00500                }
00501                break;
00502             case SQL_TYPE_TIMESTAMP:
00503             case SQL_TIMESTAMP:
00504                if (ast_strlen_zero(colptr)) {
00505                   continue;
00506                } else {
00507                   int year = 0, month = 0, day = 0, hour = 0, minute = 0, second = 0;
00508                   int count = sscanf(colptr, "%4d-%2d-%2d %2d:%2d:%2d", &year, &month, &day, &hour, &minute, &second);
00509 
00510                   if ((count != 3 && count != 5 && count != 6) || year <= 0 ||
00511                      month <= 0 || month > 12 || day < 0 || day > 31 ||
00512                      ((month == 4 || month == 6 || month == 9 || month == 11) && day == 31) ||
00513                      (month == 2 && year % 400 == 0 && day > 29) ||
00514                      (month == 2 && year % 100 == 0 && day > 28) ||
00515                      (month == 2 && year % 4 == 0 && day > 29) ||
00516                      (month == 2 && year % 4 != 0 && day > 28) ||
00517                      hour > 23 || minute > 59 || second > 59 || hour < 0 || minute < 0 || second < 0) {
00518                      ast_log(LOG_WARNING, "CDR variable %s is not a valid timestamp ('%s').\n", entry->name, colptr);
00519                      continue;
00520                   }
00521 
00522                   if (year > 0 && year < 100) {
00523                      year += 2000;
00524                   }
00525 
00526                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00527                   LENGTHEN_BUF2(26);
00528                   ast_str_append(&sql2, 0, "%s{ ts '%04d-%02d-%02d %02d:%02d:%02d' }", first ? "" : ",", year, month, day, hour, minute, second);
00529                }
00530                break;
00531             case SQL_INTEGER:
00532                if (ast_strlen_zero(colptr)) {
00533                   continue;
00534                } else {
00535                   int integer = 0;
00536                   if (sscanf(colptr, "%30d", &integer) != 1) {
00537                      ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
00538                      continue;
00539                   }
00540 
00541                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00542                   LENGTHEN_BUF2(12);
00543                   ast_str_append(&sql2, 0, "%s%d", first ? "" : ",", integer);
00544                }
00545                break;
00546             case SQL_BIGINT:
00547                if (ast_strlen_zero(colptr)) {
00548                   continue;
00549                } else {
00550                   long long integer = 0;
00551                   if (sscanf(colptr, "%30lld", &integer) != 1) {
00552                      ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
00553                      continue;
00554                   }
00555 
00556                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00557                   LENGTHEN_BUF2(24);
00558                   ast_str_append(&sql2, 0, "%s%lld", first ? "" : ",", integer);
00559                }
00560                break;
00561             case SQL_SMALLINT:
00562                if (ast_strlen_zero(colptr)) {
00563                   continue;
00564                } else {
00565                   short integer = 0;
00566                   if (sscanf(colptr, "%30hd", &integer) != 1) {
00567                      ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
00568                      continue;
00569                   }
00570 
00571                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00572                   LENGTHEN_BUF2(6);
00573                   ast_str_append(&sql2, 0, "%s%d", first ? "" : ",", integer);
00574                }
00575                break;
00576             case SQL_TINYINT:
00577                if (ast_strlen_zero(colptr)) {
00578                   continue;
00579                } else {
00580                   char integer = 0;
00581                   if (sscanf(colptr, "%30hhd", &integer) != 1) {
00582                      ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
00583                      continue;
00584                   }
00585 
00586                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00587                   LENGTHEN_BUF2(4);
00588                   ast_str_append(&sql2, 0, "%s%d", first ? "" : ",", integer);
00589                }
00590                break;
00591             case SQL_BIT:
00592                if (ast_strlen_zero(colptr)) {
00593                   continue;
00594                } else {
00595                   char integer = 0;
00596                   if (sscanf(colptr, "%30hhd", &integer) != 1) {
00597                      ast_log(LOG_WARNING, "CDR variable %s is not an integer.\n", entry->name);
00598                      continue;
00599                   }
00600                   if (integer != 0)
00601                      integer = 1;
00602 
00603                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00604                   LENGTHEN_BUF2(2);
00605                   ast_str_append(&sql2, 0, "%s%d", first ? "" : ",", integer);
00606                }
00607                break;
00608             case SQL_NUMERIC:
00609             case SQL_DECIMAL:
00610                if (ast_strlen_zero(colptr)) {
00611                   continue;
00612                } else {
00613                   double number = 0.0;
00614 
00615                   if (!strcasecmp(entry->cdrname, "billsec")) {
00616                      if (!ast_tvzero(cdr->answer)) {
00617                         snprintf(colbuf, sizeof(colbuf), "%lf",
00618                                  (double) (ast_tvdiff_us(cdr->end, cdr->answer) / 1000000.0));
00619                      } else {
00620                         ast_copy_string(colbuf, "0", sizeof(colbuf));
00621                      }
00622                   } else if (!strcasecmp(entry->cdrname, "duration")) {
00623                      snprintf(colbuf, sizeof(colbuf), "%lf",
00624                               (double) (ast_tvdiff_us(cdr->end, cdr->start) / 1000000.0));
00625 
00626                      if (!ast_strlen_zero(colbuf)) {
00627                         colptr = colbuf;
00628                      }
00629                   }
00630 
00631                   if (sscanf(colptr, "%30lf", &number) != 1) {
00632                      ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
00633                      continue;
00634                   }
00635 
00636                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00637                   LENGTHEN_BUF2(entry->decimals);
00638                   ast_str_append(&sql2, 0, "%s%*.*lf", first ? "" : ",", entry->decimals, entry->radix, number);
00639                }
00640                break;
00641             case SQL_FLOAT:
00642             case SQL_REAL:
00643             case SQL_DOUBLE:
00644                if (ast_strlen_zero(colptr)) {
00645                   continue;
00646                } else {
00647                   double number = 0.0;
00648 
00649                   if (!strcasecmp(entry->cdrname, "billsec")) {
00650                      if (!ast_tvzero(cdr->answer)) {
00651                         snprintf(colbuf, sizeof(colbuf), "%lf",
00652                                  (double) (ast_tvdiff_us(cdr->end, cdr->answer) / 1000000.0));
00653                      } else {
00654                         ast_copy_string(colbuf, "0", sizeof(colbuf));
00655                      }
00656                   } else if (!strcasecmp(entry->cdrname, "duration")) {
00657                      snprintf(colbuf, sizeof(colbuf), "%lf",
00658                               (double) (ast_tvdiff_us(cdr->end, cdr->start) / 1000000.0));
00659 
00660                      if (!ast_strlen_zero(colbuf)) {
00661                         colptr = colbuf;
00662                      }
00663                   }
00664 
00665                   if (sscanf(colptr, "%30lf", &number) != 1) {
00666                      ast_log(LOG_WARNING, "CDR variable %s is not an numeric type.\n", entry->name);
00667                      continue;
00668                   }
00669 
00670                   ast_str_append(&sql, 0, "%s%s", first ? "" : ",", entry->name);
00671                   LENGTHEN_BUF2(entry->decimals);
00672                   ast_str_append(&sql2, 0, "%s%lf", first ? "" : ",", number);
00673                }
00674                break;
00675             default:
00676                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);
00677                continue;
00678             }
00679             first = 0;
00680          }
00681       }
00682 
00683       /* Concatenate the two constructed buffers */
00684       LENGTHEN_BUF1(ast_str_strlen(sql2));
00685       ast_str_append(&sql, 0, ")");
00686       ast_str_append(&sql2, 0, ")");
00687       ast_str_append(&sql, 0, "%s", ast_str_buffer(sql2));
00688 
00689       ast_verb(11, "[%s]\n", ast_str_buffer(sql));
00690 
00691       stmt = ast_odbc_prepare_and_execute(obj, generic_prepare, ast_str_buffer(sql));
00692       if (stmt) {
00693          SQLRowCount(stmt, &rows);
00694          SQLFreeHandle(SQL_HANDLE_STMT, stmt);
00695       }
00696       if (rows == 0) {
00697          ast_log(LOG_WARNING, "cdr_adaptive_odbc: Insert failed on '%s:%s'.  CDR failed: %s\n", tableptr->connection, tableptr->table, ast_str_buffer(sql));
00698       }
00699 early_release:
00700       ast_odbc_release_obj(obj);
00701    }
00702    AST_RWLIST_UNLOCK(&odbc_tables);
00703 
00704    /* Next time, just allocate buffers that are that big to start with. */
00705    if (ast_str_strlen(sql) > maxsize) {
00706       maxsize = ast_str_strlen(sql);
00707    }
00708    if (ast_str_strlen(sql2) > maxsize2) {
00709       maxsize2 = ast_str_strlen(sql2);
00710    }
00711 
00712    ast_free(sql);
00713    ast_free(sql2);
00714    return 0;
00715 }
00716 
00717 static int unload_module(void)
00718 {
00719    ast_cdr_unregister(name);
00720    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
00721       ast_cdr_register(name, ast_module_info->description, odbc_log);
00722       ast_log(LOG_ERROR, "Unable to lock column list.  Unload failed.\n");
00723       return -1;
00724    }
00725 
00726    free_config();
00727    AST_RWLIST_UNLOCK(&odbc_tables);
00728    return 0;
00729 }
00730 
00731 static int load_module(void)
00732 {
00733    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
00734       ast_log(LOG_ERROR, "Unable to lock column list.  Load failed.\n");
00735       return 0;
00736    }
00737 
00738    load_config();
00739    AST_RWLIST_UNLOCK(&odbc_tables);
00740    ast_cdr_register(name, ast_module_info->description, odbc_log);
00741    return 0;
00742 }
00743 
00744 static int reload(void)
00745 {
00746    if (AST_RWLIST_WRLOCK(&odbc_tables)) {
00747       ast_log(LOG_ERROR, "Unable to lock column list.  Reload failed.\n");
00748       return -1;
00749    }
00750 
00751    free_config();
00752    load_config();
00753    AST_RWLIST_UNLOCK(&odbc_tables);
00754    return 0;
00755 }
00756 
00757 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Adaptive ODBC CDR backend",
00758    .load = load_module,
00759    .unload = unload_module,
00760    .reload = reload,
00761    .load_pri = AST_MODPRI_CDR_DRIVER,
00762 );
00763 

Generated on Mon Mar 19 11:30:23 2012 for Asterisk - The Open Source Telephony Project by  doxygen 1.4.7