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00030 #include "asterisk.h"
00031
00032 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 413224 $")
00033
00034 #include <libpq-fe.h>
00035
00036 #include "asterisk/file.h"
00037 #include "asterisk/channel.h"
00038 #include "asterisk/pbx.h"
00039 #include "asterisk/config.h"
00040 #include "asterisk/module.h"
00041 #include "asterisk/lock.h"
00042 #include "asterisk/utils.h"
00043 #include "asterisk/cli.h"
00044
00045 AST_MUTEX_DEFINE_STATIC(pgsql_lock);
00046 AST_THREADSTORAGE(sql_buf);
00047 AST_THREADSTORAGE(findtable_buf);
00048 AST_THREADSTORAGE(where_buf);
00049 AST_THREADSTORAGE(escapebuf_buf);
00050 AST_THREADSTORAGE(semibuf_buf);
00051
00052 #define RES_CONFIG_PGSQL_CONF "res_pgsql.conf"
00053
00054 static PGconn *pgsqlConn = NULL;
00055 static int version;
00056 #define has_schema_support (version > 70300 ? 1 : 0)
00057
00058 #define MAX_DB_OPTION_SIZE 64
00059
00060 struct columns {
00061 char *name;
00062 char *type;
00063 int len;
00064 unsigned int notnull:1;
00065 unsigned int hasdefault:1;
00066 AST_LIST_ENTRY(columns) list;
00067 };
00068
00069 struct tables {
00070 ast_rwlock_t lock;
00071 AST_LIST_HEAD_NOLOCK(psql_columns, columns) columns;
00072 AST_LIST_ENTRY(tables) list;
00073 char name[0];
00074 };
00075
00076 static AST_LIST_HEAD_STATIC(psql_tables, tables);
00077
00078 static char dbhost[MAX_DB_OPTION_SIZE] = "";
00079 static char dbuser[MAX_DB_OPTION_SIZE] = "";
00080 static char dbpass[MAX_DB_OPTION_SIZE] = "";
00081 static char dbname[MAX_DB_OPTION_SIZE] = "";
00082 static char dbsock[MAX_DB_OPTION_SIZE] = "";
00083 static int dbport = 5432;
00084 static time_t connect_time = 0;
00085
00086 static int parse_config(int reload);
00087 static int pgsql_reconnect(const char *database);
00088 static char *handle_cli_realtime_pgsql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00089 static char *handle_cli_realtime_pgsql_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
00090
00091 static enum { RQ_WARN, RQ_CREATECLOSE, RQ_CREATECHAR } requirements;
00092
00093 static struct ast_cli_entry cli_realtime[] = {
00094 AST_CLI_DEFINE(handle_cli_realtime_pgsql_status, "Shows connection information for the PostgreSQL RealTime driver"),
00095 AST_CLI_DEFINE(handle_cli_realtime_pgsql_cache, "Shows cached tables within the PostgreSQL realtime driver"),
00096 };
00097
00098 #define ESCAPE_STRING(buffer, stringname) \
00099 do { \
00100 int len = strlen(stringname); \
00101 struct ast_str *semi = ast_str_thread_get(&semibuf_buf, len * 3 + 1); \
00102 const char *chunk = stringname; \
00103 ast_str_reset(semi); \
00104 for (; *chunk; chunk++) { \
00105 if (strchr(";^", *chunk)) { \
00106 ast_str_append(&semi, 0, "^%02hhX", *chunk); \
00107 } else { \
00108 ast_str_append(&semi, 0, "%c", *chunk); \
00109 } \
00110 } \
00111 if (ast_str_strlen(semi) > (ast_str_size(buffer) - 1) / 2) { \
00112 ast_str_make_space(&buffer, ast_str_strlen(semi) * 2 + 1); \
00113 } \
00114 PQescapeStringConn(pgsqlConn, ast_str_buffer(buffer), ast_str_buffer(semi), ast_str_size(buffer), &pgresult); \
00115 } while (0)
00116
00117 static void destroy_table(struct tables *table)
00118 {
00119 struct columns *column;
00120 ast_rwlock_wrlock(&table->lock);
00121 while ((column = AST_LIST_REMOVE_HEAD(&table->columns, list))) {
00122 ast_free(column);
00123 }
00124 ast_rwlock_unlock(&table->lock);
00125 ast_rwlock_destroy(&table->lock);
00126 ast_free(table);
00127 }
00128
00129 static struct tables *find_table(const char *database, const char *orig_tablename)
00130 {
00131 struct columns *column;
00132 struct tables *table;
00133 struct ast_str *sql = ast_str_thread_get(&findtable_buf, 330);
00134 char *pgerror;
00135 RAII_VAR(PGresult *, result, NULL, PQclear);
00136 char *fname, *ftype, *flen, *fnotnull, *fdef;
00137 int i, rows;
00138
00139 AST_LIST_LOCK(&psql_tables);
00140 AST_LIST_TRAVERSE(&psql_tables, table, list) {
00141 if (!strcasecmp(table->name, orig_tablename)) {
00142 ast_debug(1, "Found table in cache; now locking\n");
00143 ast_rwlock_rdlock(&table->lock);
00144 ast_debug(1, "Lock cached table; now returning\n");
00145 AST_LIST_UNLOCK(&psql_tables);
00146 return table;
00147 }
00148 }
00149
00150 ast_debug(1, "Table '%s' not found in cache, querying now\n", orig_tablename);
00151
00152
00153 if (has_schema_support) {
00154 char *schemaname, *tablename;
00155 if (strchr(orig_tablename, '.')) {
00156 schemaname = ast_strdupa(orig_tablename);
00157 tablename = strchr(schemaname, '.');
00158 *tablename++ = '\0';
00159 } else {
00160 schemaname = "";
00161 tablename = ast_strdupa(orig_tablename);
00162 }
00163
00164
00165 if (strchr(schemaname, '\\') || strchr(schemaname, '\'')) {
00166 char *tmp = schemaname, *ptr;
00167
00168 ptr = schemaname = ast_alloca(strlen(tmp) * 2 + 1);
00169 for (; *tmp; tmp++) {
00170 if (strchr("\\'", *tmp)) {
00171 *ptr++ = *tmp;
00172 }
00173 *ptr++ = *tmp;
00174 }
00175 *ptr = '\0';
00176 }
00177
00178 if (strchr(tablename, '\\') || strchr(tablename, '\'')) {
00179 char *tmp = tablename, *ptr;
00180
00181 ptr = tablename = ast_alloca(strlen(tmp) * 2 + 1);
00182 for (; *tmp; tmp++) {
00183 if (strchr("\\'", *tmp)) {
00184 *ptr++ = *tmp;
00185 }
00186 *ptr++ = *tmp;
00187 }
00188 *ptr = '\0';
00189 }
00190
00191 ast_str_set(&sql, 0, "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM (((pg_catalog.pg_class c INNER JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace AND c.relname = '%s' AND n.nspname = %s%s%s) INNER JOIN pg_catalog.pg_attribute a ON (NOT a.attisdropped) AND a.attnum > 0 AND a.attrelid = c.oid) INNER JOIN pg_catalog.pg_type t ON t.oid = a.atttypid) LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum ORDER BY n.nspname, c.relname, attnum",
00192 tablename,
00193 ast_strlen_zero(schemaname) ? "" : "'", ast_strlen_zero(schemaname) ? "current_schema()" : schemaname, ast_strlen_zero(schemaname) ? "" : "'");
00194 } else {
00195
00196 if (strchr(orig_tablename, '\\') || strchr(orig_tablename, '\'')) {
00197 const char *tmp = orig_tablename;
00198 char *ptr;
00199
00200 orig_tablename = ptr = ast_alloca(strlen(tmp) * 2 + 1);
00201 for (; *tmp; tmp++) {
00202 if (strchr("\\'", *tmp)) {
00203 *ptr++ = *tmp;
00204 }
00205 *ptr++ = *tmp;
00206 }
00207 *ptr = '\0';
00208 }
00209
00210 ast_str_set(&sql, 0, "SELECT a.attname, t.typname, a.attlen, a.attnotnull, d.adsrc, a.atttypmod FROM pg_class c, pg_type t, pg_attribute a LEFT OUTER JOIN pg_attrdef d ON a.atthasdef AND d.adrelid = a.attrelid AND d.adnum = a.attnum WHERE c.oid = a.attrelid AND a.atttypid = t.oid AND (a.attnum > 0) AND c.relname = '%s' ORDER BY c.relname, attnum", orig_tablename);
00211 }
00212
00213 ast_mutex_lock(&pgsql_lock);
00214 if (!pgsql_reconnect(database)) {
00215 AST_LIST_UNLOCK(&psql_tables);
00216 ast_mutex_unlock(&pgsql_lock);
00217 return NULL;
00218 }
00219
00220 result = PQexec(pgsqlConn, ast_str_buffer(sql));
00221 ast_debug(1, "Query of table structure complete. Now retrieving results.\n");
00222 if (PQresultStatus(result) != PGRES_TUPLES_OK) {
00223 pgerror = PQresultErrorMessage(result);
00224 ast_log(LOG_ERROR, "Failed to query database columns: %s\n", pgerror);
00225 AST_LIST_UNLOCK(&psql_tables);
00226 ast_mutex_unlock(&pgsql_lock);
00227 return NULL;
00228 }
00229
00230 if (!(table = ast_calloc(1, sizeof(*table) + strlen(orig_tablename) + 1))) {
00231 ast_log(LOG_ERROR, "Unable to allocate memory for new table structure\n");
00232 AST_LIST_UNLOCK(&psql_tables);
00233 ast_mutex_unlock(&pgsql_lock);
00234 return NULL;
00235 }
00236 strcpy(table->name, orig_tablename);
00237 ast_rwlock_init(&table->lock);
00238 AST_LIST_HEAD_INIT_NOLOCK(&table->columns);
00239
00240 rows = PQntuples(result);
00241 for (i = 0; i < rows; i++) {
00242 fname = PQgetvalue(result, i, 0);
00243 ftype = PQgetvalue(result, i, 1);
00244 flen = PQgetvalue(result, i, 2);
00245 fnotnull = PQgetvalue(result, i, 3);
00246 fdef = PQgetvalue(result, i, 4);
00247 ast_verb(4, "Found column '%s' of type '%s'\n", fname, ftype);
00248
00249 if (!(column = ast_calloc(1, sizeof(*column) + strlen(fname) + strlen(ftype) + 2))) {
00250 ast_log(LOG_ERROR, "Unable to allocate column element for %s, %s\n", orig_tablename, fname);
00251 destroy_table(table);
00252 AST_LIST_UNLOCK(&psql_tables);
00253 ast_mutex_unlock(&pgsql_lock);
00254 return NULL;
00255 }
00256
00257 if (strcmp(flen, "-1") == 0) {
00258
00259 flen = PQgetvalue(result, i, 5);
00260 sscanf(flen, "%30d", &column->len);
00261 column->len -= 4;
00262 } else {
00263 sscanf(flen, "%30d", &column->len);
00264 }
00265 column->name = (char *)column + sizeof(*column);
00266 column->type = (char *)column + sizeof(*column) + strlen(fname) + 1;
00267 strcpy(column->name, fname);
00268 strcpy(column->type, ftype);
00269 if (*fnotnull == 't') {
00270 column->notnull = 1;
00271 } else {
00272 column->notnull = 0;
00273 }
00274 if (!ast_strlen_zero(fdef)) {
00275 column->hasdefault = 1;
00276 } else {
00277 column->hasdefault = 0;
00278 }
00279 AST_LIST_INSERT_TAIL(&table->columns, column, list);
00280 }
00281
00282 AST_LIST_INSERT_TAIL(&psql_tables, table, list);
00283 ast_rwlock_rdlock(&table->lock);
00284 AST_LIST_UNLOCK(&psql_tables);
00285 ast_mutex_unlock(&pgsql_lock);
00286 return table;
00287 }
00288
00289 #define release_table(table) ast_rwlock_unlock(&(table)->lock);
00290
00291 static struct columns *find_column(struct tables *t, const char *colname)
00292 {
00293 struct columns *column;
00294
00295
00296 AST_LIST_TRAVERSE(&t->columns, column, list) {
00297 if (strcmp(column->name, colname) == 0) {
00298 return column;
00299 }
00300 }
00301 return NULL;
00302 }
00303
00304 static struct ast_variable *realtime_pgsql(const char *database, const char *tablename, va_list ap)
00305 {
00306 RAII_VAR(PGresult *, result, NULL, PQclear);
00307 int num_rows = 0, pgresult;
00308 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
00309 struct ast_str *escapebuf = ast_str_thread_get(&escapebuf_buf, 100);
00310 char *stringp;
00311 char *chunk;
00312 char *op;
00313 const char *newparam, *newval;
00314 struct ast_variable *var = NULL, *prev = NULL;
00315
00316
00317
00318
00319
00320 database = dbname;
00321
00322 if (!tablename) {
00323 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00324 return NULL;
00325 }
00326
00327
00328 newparam = va_arg(ap, const char *);
00329 newval = va_arg(ap, const char *);
00330 if (!newparam || !newval) {
00331 ast_log(LOG_WARNING,
00332 "PostgreSQL RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
00333 if (pgsqlConn) {
00334 PQfinish(pgsqlConn);
00335 pgsqlConn = NULL;
00336 }
00337 return NULL;
00338 }
00339
00340
00341
00342 op = strchr(newparam, ' ') ? "" : " =";
00343
00344 ESCAPE_STRING(escapebuf, newval);
00345 if (pgresult) {
00346 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00347 return NULL;
00348 }
00349
00350 ast_str_set(&sql, 0, "SELECT * FROM %s WHERE %s%s '%s'", tablename, newparam, op, ast_str_buffer(escapebuf));
00351 while ((newparam = va_arg(ap, const char *))) {
00352 newval = va_arg(ap, const char *);
00353 if (!strchr(newparam, ' '))
00354 op = " =";
00355 else
00356 op = "";
00357
00358 ESCAPE_STRING(escapebuf, newval);
00359 if (pgresult) {
00360 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00361 return NULL;
00362 }
00363
00364 ast_str_append(&sql, 0, " AND %s%s '%s'", newparam, op, ast_str_buffer(escapebuf));
00365 }
00366
00367
00368 ast_mutex_lock(&pgsql_lock);
00369 if (!pgsql_reconnect(database)) {
00370 ast_mutex_unlock(&pgsql_lock);
00371 return NULL;
00372 }
00373
00374 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
00375 ast_log(LOG_WARNING,
00376 "PostgreSQL RealTime: Failed to query '%s@%s'. Check debug for more info.\n", tablename, database);
00377 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00378 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
00379 ast_mutex_unlock(&pgsql_lock);
00380 return NULL;
00381 } else {
00382 ExecStatusType result_status = PQresultStatus(result);
00383 if (result_status != PGRES_COMMAND_OK
00384 && result_status != PGRES_TUPLES_OK
00385 && result_status != PGRES_NONFATAL_ERROR) {
00386 ast_log(LOG_WARNING,
00387 "PostgreSQL RealTime: Failed to query '%s@%s'. Check debug for more info.\n", tablename, database);
00388 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00389 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
00390 PQresultErrorMessage(result), PQresStatus(result_status));
00391 ast_mutex_unlock(&pgsql_lock);
00392 return NULL;
00393 }
00394 }
00395
00396 ast_debug(1, "PostgreSQL RealTime: Result=%p Query: %s\n", result, ast_str_buffer(sql));
00397
00398 if ((num_rows = PQntuples(result)) > 0) {
00399 int i = 0;
00400 int rowIndex = 0;
00401 int numFields = PQnfields(result);
00402 char **fieldnames = NULL;
00403
00404 ast_debug(1, "PostgreSQL RealTime: Found %d rows.\n", num_rows);
00405
00406 if (!(fieldnames = ast_calloc(1, numFields * sizeof(char *)))) {
00407 ast_mutex_unlock(&pgsql_lock);
00408 return NULL;
00409 }
00410 for (i = 0; i < numFields; i++)
00411 fieldnames[i] = PQfname(result, i);
00412 for (rowIndex = 0; rowIndex < num_rows; rowIndex++) {
00413 for (i = 0; i < numFields; i++) {
00414 stringp = PQgetvalue(result, rowIndex, i);
00415 while (stringp) {
00416 chunk = strsep(&stringp, ";");
00417 if (chunk && !ast_strlen_zero(ast_realtime_decode_chunk(ast_strip(chunk)))) {
00418 if (prev) {
00419 prev->next = ast_variable_new(fieldnames[i], chunk, "");
00420 if (prev->next) {
00421 prev = prev->next;
00422 }
00423 } else {
00424 prev = var = ast_variable_new(fieldnames[i], chunk, "");
00425 }
00426 }
00427 }
00428 }
00429 }
00430 ast_free(fieldnames);
00431 } else {
00432 ast_debug(1, "Postgresql RealTime: Could not find any rows in table %s@%s.\n", tablename, database);
00433 }
00434
00435 ast_mutex_unlock(&pgsql_lock);
00436
00437 return var;
00438 }
00439
00440 static struct ast_config *realtime_multi_pgsql(const char *database, const char *table, va_list ap)
00441 {
00442 RAII_VAR(PGresult *, result, NULL, PQclear);
00443 int num_rows = 0, pgresult;
00444 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
00445 struct ast_str *escapebuf = ast_str_thread_get(&escapebuf_buf, 100);
00446 const char *initfield = NULL;
00447 char *stringp;
00448 char *chunk;
00449 char *op;
00450 const char *newparam, *newval;
00451 struct ast_variable *var = NULL;
00452 struct ast_config *cfg = NULL;
00453 struct ast_category *cat = NULL;
00454
00455
00456
00457
00458
00459 database = dbname;
00460
00461 if (!table) {
00462 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00463 return NULL;
00464 }
00465
00466 if (!(cfg = ast_config_new()))
00467 return NULL;
00468
00469
00470 newparam = va_arg(ap, const char *);
00471 newval = va_arg(ap, const char *);
00472 if (!newparam || !newval) {
00473 ast_log(LOG_WARNING,
00474 "PostgreSQL RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
00475 if (pgsqlConn) {
00476 PQfinish(pgsqlConn);
00477 pgsqlConn = NULL;
00478 }
00479 ast_config_destroy(cfg);
00480 return NULL;
00481 }
00482
00483 initfield = ast_strdupa(newparam);
00484 if ((op = strchr(initfield, ' '))) {
00485 *op = '\0';
00486 }
00487
00488
00489
00490
00491 if (!strchr(newparam, ' '))
00492 op = " =";
00493 else
00494 op = "";
00495
00496 ESCAPE_STRING(escapebuf, newval);
00497 if (pgresult) {
00498 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00499 ast_config_destroy(cfg);
00500 return NULL;
00501 }
00502
00503 ast_str_set(&sql, 0, "SELECT * FROM %s WHERE %s%s '%s'", table, newparam, op, ast_str_buffer(escapebuf));
00504 while ((newparam = va_arg(ap, const char *))) {
00505 newval = va_arg(ap, const char *);
00506 if (!strchr(newparam, ' '))
00507 op = " =";
00508 else
00509 op = "";
00510
00511 ESCAPE_STRING(escapebuf, newval);
00512 if (pgresult) {
00513 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00514 ast_config_destroy(cfg);
00515 return NULL;
00516 }
00517
00518 ast_str_append(&sql, 0, " AND %s%s '%s'", newparam, op, ast_str_buffer(escapebuf));
00519 }
00520
00521 if (initfield) {
00522 ast_str_append(&sql, 0, " ORDER BY %s", initfield);
00523 }
00524
00525
00526
00527 ast_mutex_lock(&pgsql_lock);
00528 if (!pgsql_reconnect(database)) {
00529 ast_mutex_unlock(&pgsql_lock);
00530 ast_config_destroy(cfg);
00531 return NULL;
00532 }
00533
00534 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
00535 ast_log(LOG_WARNING,
00536 "PostgreSQL RealTime: Failed to query %s@%s. Check debug for more info.\n", table, database);
00537 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00538 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
00539 ast_mutex_unlock(&pgsql_lock);
00540 ast_config_destroy(cfg);
00541 return NULL;
00542 } else {
00543 ExecStatusType result_status = PQresultStatus(result);
00544 if (result_status != PGRES_COMMAND_OK
00545 && result_status != PGRES_TUPLES_OK
00546 && result_status != PGRES_NONFATAL_ERROR) {
00547 ast_log(LOG_WARNING,
00548 "PostgreSQL RealTime: Failed to query %s@%s. Check debug for more info.\n", table, database);
00549 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00550 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
00551 PQresultErrorMessage(result), PQresStatus(result_status));
00552 ast_mutex_unlock(&pgsql_lock);
00553 ast_config_destroy(cfg);
00554 return NULL;
00555 }
00556 }
00557
00558 ast_debug(1, "PostgreSQL RealTime: Result=%p Query: %s\n", result, ast_str_buffer(sql));
00559
00560 if ((num_rows = PQntuples(result)) > 0) {
00561 int numFields = PQnfields(result);
00562 int i = 0;
00563 int rowIndex = 0;
00564 char **fieldnames = NULL;
00565
00566 ast_debug(1, "PostgreSQL RealTime: Found %d rows.\n", num_rows);
00567
00568 if (!(fieldnames = ast_calloc(1, numFields * sizeof(char *)))) {
00569 ast_mutex_unlock(&pgsql_lock);
00570 ast_config_destroy(cfg);
00571 return NULL;
00572 }
00573 for (i = 0; i < numFields; i++)
00574 fieldnames[i] = PQfname(result, i);
00575
00576 for (rowIndex = 0; rowIndex < num_rows; rowIndex++) {
00577 var = NULL;
00578 if (!(cat = ast_category_new("","",99999)))
00579 continue;
00580 for (i = 0; i < numFields; i++) {
00581 stringp = PQgetvalue(result, rowIndex, i);
00582 while (stringp) {
00583 chunk = strsep(&stringp, ";");
00584 if (chunk && !ast_strlen_zero(ast_realtime_decode_chunk(ast_strip(chunk)))) {
00585 if (initfield && !strcmp(initfield, fieldnames[i])) {
00586 ast_category_rename(cat, chunk);
00587 }
00588 var = ast_variable_new(fieldnames[i], chunk, "");
00589 ast_variable_append(cat, var);
00590 }
00591 }
00592 }
00593 ast_category_append(cfg, cat);
00594 }
00595 ast_free(fieldnames);
00596 } else {
00597 ast_debug(1, "PostgreSQL RealTime: Could not find any rows in table %s.\n", table);
00598 }
00599
00600 ast_mutex_unlock(&pgsql_lock);
00601
00602 return cfg;
00603 }
00604
00605 static int update_pgsql(const char *database, const char *tablename, const char *keyfield,
00606 const char *lookup, va_list ap)
00607 {
00608 RAII_VAR(PGresult *, result, NULL, PQclear);
00609 int numrows = 0, pgresult;
00610 const char *newparam, *newval;
00611 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
00612 struct ast_str *escapebuf = ast_str_thread_get(&escapebuf_buf, 100);
00613 struct tables *table;
00614 struct columns *column = NULL;
00615
00616
00617
00618
00619
00620 database = dbname;
00621
00622 if (!tablename) {
00623 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00624 return -1;
00625 }
00626
00627 if (!(table = find_table(database, tablename))) {
00628 ast_log(LOG_ERROR, "Table '%s' does not exist!!\n", tablename);
00629 return -1;
00630 }
00631
00632
00633 newparam = va_arg(ap, const char *);
00634 newval = va_arg(ap, const char *);
00635 if (!newparam || !newval) {
00636 ast_log(LOG_WARNING,
00637 "PostgreSQL RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
00638 if (pgsqlConn) {
00639 PQfinish(pgsqlConn);
00640 pgsqlConn = NULL;
00641 }
00642 release_table(table);
00643 return -1;
00644 }
00645
00646
00647 AST_LIST_TRAVERSE(&table->columns, column, list) {
00648 if (strcmp(column->name, newparam) == 0) {
00649 break;
00650 }
00651 }
00652
00653 if (!column) {
00654 ast_log(LOG_ERROR, "PostgreSQL RealTime: Updating on column '%s', but that column does not exist within the table '%s'!\n", newparam, tablename);
00655 release_table(table);
00656 return -1;
00657 }
00658
00659
00660
00661
00662 ESCAPE_STRING(escapebuf, newval);
00663 if (pgresult) {
00664 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00665 release_table(table);
00666 return -1;
00667 }
00668 ast_str_set(&sql, 0, "UPDATE %s SET %s = '%s'", tablename, newparam, ast_str_buffer(escapebuf));
00669
00670 while ((newparam = va_arg(ap, const char *))) {
00671 newval = va_arg(ap, const char *);
00672
00673 if (!find_column(table, newparam)) {
00674 ast_log(LOG_NOTICE, "Attempted to update column '%s' in table '%s', but column does not exist!\n", newparam, tablename);
00675 continue;
00676 }
00677
00678 ESCAPE_STRING(escapebuf, newval);
00679 if (pgresult) {
00680 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00681 release_table(table);
00682 return -1;
00683 }
00684
00685 ast_str_append(&sql, 0, ", %s = '%s'", newparam, ast_str_buffer(escapebuf));
00686 }
00687 release_table(table);
00688
00689 ESCAPE_STRING(escapebuf, lookup);
00690 if (pgresult) {
00691 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", lookup);
00692 return -1;
00693 }
00694
00695 ast_str_append(&sql, 0, " WHERE %s = '%s'", keyfield, ast_str_buffer(escapebuf));
00696
00697 ast_debug(1, "PostgreSQL RealTime: Update SQL: %s\n", ast_str_buffer(sql));
00698
00699
00700 ast_mutex_lock(&pgsql_lock);
00701 if (!pgsql_reconnect(database)) {
00702 ast_mutex_unlock(&pgsql_lock);
00703 return -1;
00704 }
00705
00706 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
00707 ast_log(LOG_WARNING,
00708 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00709 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00710 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
00711 ast_mutex_unlock(&pgsql_lock);
00712 return -1;
00713 } else {
00714 ExecStatusType result_status = PQresultStatus(result);
00715 if (result_status != PGRES_COMMAND_OK
00716 && result_status != PGRES_TUPLES_OK
00717 && result_status != PGRES_NONFATAL_ERROR) {
00718 ast_log(LOG_WARNING,
00719 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00720 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00721 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
00722 PQresultErrorMessage(result), PQresStatus(result_status));
00723 ast_mutex_unlock(&pgsql_lock);
00724 return -1;
00725 }
00726 }
00727
00728 numrows = atoi(PQcmdTuples(result));
00729 ast_mutex_unlock(&pgsql_lock);
00730
00731 ast_debug(1, "PostgreSQL RealTime: Updated %d rows on table: %s\n", numrows, tablename);
00732
00733
00734
00735
00736
00737
00738
00739 if (numrows >= 0)
00740 return (int) numrows;
00741
00742 return -1;
00743 }
00744
00745 static int update2_pgsql(const char *database, const char *tablename, va_list ap)
00746 {
00747 RAII_VAR(PGresult *, result, NULL, PQclear);
00748 int numrows = 0, pgresult, first = 1;
00749 struct ast_str *escapebuf = ast_str_thread_get(&escapebuf_buf, 16);
00750 const char *newparam, *newval;
00751 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
00752 struct ast_str *where = ast_str_thread_get(&where_buf, 100);
00753 struct tables *table;
00754
00755
00756
00757
00758
00759 database = dbname;
00760
00761 if (!tablename) {
00762 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00763 return -1;
00764 }
00765
00766 if (!escapebuf || !sql || !where) {
00767
00768 return -1;
00769 }
00770
00771 if (!(table = find_table(database, tablename))) {
00772 ast_log(LOG_ERROR, "Table '%s' does not exist!!\n", tablename);
00773 return -1;
00774 }
00775
00776 ast_str_set(&sql, 0, "UPDATE %s SET", tablename);
00777 ast_str_set(&where, 0, " WHERE");
00778
00779 while ((newparam = va_arg(ap, const char *))) {
00780 if (!find_column(table, newparam)) {
00781 ast_log(LOG_ERROR, "Attempted to update based on criteria column '%s' (%s@%s), but that column does not exist!\n", newparam, tablename, database);
00782 release_table(table);
00783 return -1;
00784 }
00785
00786 newval = va_arg(ap, const char *);
00787 ESCAPE_STRING(escapebuf, newval);
00788 if (pgresult) {
00789 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00790 release_table(table);
00791 return -1;
00792 }
00793 ast_str_append(&where, 0, "%s %s='%s'", first ? "" : " AND", newparam, ast_str_buffer(escapebuf));
00794 first = 0;
00795 }
00796
00797 if (first) {
00798 ast_log(LOG_WARNING,
00799 "PostgreSQL RealTime: Realtime update requires at least 1 parameter and 1 value to search on.\n");
00800 if (pgsqlConn) {
00801 PQfinish(pgsqlConn);
00802 pgsqlConn = NULL;
00803 }
00804 release_table(table);
00805 return -1;
00806 }
00807
00808
00809 first = 1;
00810 while ((newparam = va_arg(ap, const char *))) {
00811 newval = va_arg(ap, const char *);
00812
00813
00814 if (!find_column(table, newparam)) {
00815 ast_log(LOG_NOTICE, "Attempted to update column '%s' in table '%s@%s', but column does not exist!\n", newparam, tablename, database);
00816 continue;
00817 }
00818
00819 ESCAPE_STRING(escapebuf, newval);
00820 if (pgresult) {
00821 ast_log(LOG_ERROR, "Postgres detected invalid input: '%s'\n", newval);
00822 release_table(table);
00823 return -1;
00824 }
00825
00826 ast_str_append(&sql, 0, "%s %s='%s'", first ? "" : ",", newparam, ast_str_buffer(escapebuf));
00827 first = 0;
00828 }
00829 release_table(table);
00830
00831 ast_str_append(&sql, 0, "%s", ast_str_buffer(where));
00832
00833 ast_debug(1, "PostgreSQL RealTime: Update SQL: %s\n", ast_str_buffer(sql));
00834
00835
00836 ast_mutex_lock(&pgsql_lock);
00837 if (!pgsql_reconnect(database)) {
00838 ast_mutex_unlock(&pgsql_lock);
00839 return -1;
00840 }
00841
00842 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
00843 ast_log(LOG_WARNING,
00844 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00845 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00846 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
00847 ast_mutex_unlock(&pgsql_lock);
00848 return -1;
00849 } else {
00850 ExecStatusType result_status = PQresultStatus(result);
00851 if (result_status != PGRES_COMMAND_OK
00852 && result_status != PGRES_TUPLES_OK
00853 && result_status != PGRES_NONFATAL_ERROR) {
00854 ast_log(LOG_WARNING,
00855 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00856 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
00857 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
00858 PQresultErrorMessage(result), PQresStatus(result_status));
00859 ast_mutex_unlock(&pgsql_lock);
00860 return -1;
00861 }
00862 }
00863
00864 numrows = atoi(PQcmdTuples(result));
00865 ast_mutex_unlock(&pgsql_lock);
00866
00867 ast_debug(1, "PostgreSQL RealTime: Updated %d rows on table: %s\n", numrows, tablename);
00868
00869
00870
00871
00872
00873
00874
00875 if (numrows >= 0) {
00876 return (int) numrows;
00877 }
00878
00879 return -1;
00880 }
00881
00882 static int store_pgsql(const char *database, const char *table, va_list ap)
00883 {
00884 RAII_VAR(PGresult *, result, NULL, PQclear);
00885 int numrows;
00886 struct ast_str *buf = ast_str_thread_get(&escapebuf_buf, 256);
00887 struct ast_str *sql1 = ast_str_thread_get(&sql_buf, 256);
00888 struct ast_str *sql2 = ast_str_thread_get(&where_buf, 256);
00889 int pgresult;
00890 const char *newparam, *newval;
00891
00892
00893
00894
00895
00896 database = dbname;
00897
00898 if (!table) {
00899 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00900 return -1;
00901 }
00902
00903
00904 newparam = va_arg(ap, const char *);
00905 newval = va_arg(ap, const char *);
00906 if (!newparam || !newval) {
00907 ast_log(LOG_WARNING,
00908 "PostgreSQL RealTime: Realtime storage requires at least 1 parameter and 1 value to store.\n");
00909 if (pgsqlConn) {
00910 PQfinish(pgsqlConn);
00911 pgsqlConn = NULL;
00912 }
00913 return -1;
00914 }
00915
00916
00917 ast_mutex_lock(&pgsql_lock);
00918 if (!pgsql_reconnect(database)) {
00919 ast_mutex_unlock(&pgsql_lock);
00920 return -1;
00921 }
00922
00923
00924
00925 ESCAPE_STRING(buf, newparam);
00926 ast_str_set(&sql1, 0, "INSERT INTO %s (%s", table, ast_str_buffer(buf));
00927 ESCAPE_STRING(buf, newval);
00928 ast_str_set(&sql2, 0, ") VALUES ('%s'", ast_str_buffer(buf));
00929 while ((newparam = va_arg(ap, const char *))) {
00930 newval = va_arg(ap, const char *);
00931 ESCAPE_STRING(buf, newparam);
00932 ast_str_append(&sql1, 0, ", %s", ast_str_buffer(buf));
00933 ESCAPE_STRING(buf, newval);
00934 ast_str_append(&sql2, 0, ", '%s'", ast_str_buffer(buf));
00935 }
00936 ast_str_append(&sql1, 0, "%s)", ast_str_buffer(sql2));
00937
00938 ast_debug(1, "PostgreSQL RealTime: Insert SQL: %s\n", ast_str_buffer(sql1));
00939
00940 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql1)))) {
00941 ast_log(LOG_WARNING,
00942 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00943 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql1));
00944 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
00945 ast_mutex_unlock(&pgsql_lock);
00946 return -1;
00947 } else {
00948 ExecStatusType result_status = PQresultStatus(result);
00949 if (result_status != PGRES_COMMAND_OK
00950 && result_status != PGRES_TUPLES_OK
00951 && result_status != PGRES_NONFATAL_ERROR) {
00952 ast_log(LOG_WARNING,
00953 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
00954 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql1));
00955 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
00956 PQresultErrorMessage(result), PQresStatus(result_status));
00957 ast_mutex_unlock(&pgsql_lock);
00958 return -1;
00959 }
00960 }
00961
00962 numrows = atoi(PQcmdTuples(result));
00963 ast_mutex_unlock(&pgsql_lock);
00964
00965 ast_debug(1, "PostgreSQL RealTime: row inserted on table: %s.", table);
00966
00967
00968
00969
00970
00971
00972
00973 if (numrows >= 0) {
00974 return numrows;
00975 }
00976
00977 return -1;
00978 }
00979
00980 static int destroy_pgsql(const char *database, const char *table, const char *keyfield, const char *lookup, va_list ap)
00981 {
00982 RAII_VAR(PGresult *, result, NULL, PQclear);
00983 int numrows = 0;
00984 int pgresult;
00985 struct ast_str *sql = ast_str_thread_get(&sql_buf, 256);
00986 struct ast_str *buf1 = ast_str_thread_get(&where_buf, 60), *buf2 = ast_str_thread_get(&escapebuf_buf, 60);
00987 const char *newparam, *newval;
00988
00989
00990
00991
00992
00993 database = dbname;
00994
00995 if (!table) {
00996 ast_log(LOG_WARNING, "PostgreSQL RealTime: No table specified.\n");
00997 return -1;
00998 }
00999
01000
01001
01002
01003
01004 if (ast_strlen_zero(keyfield) || ast_strlen_zero(lookup)) {
01005 ast_log(LOG_WARNING,
01006 "PostgreSQL RealTime: Realtime destroy requires at least 1 parameter and 1 value to search on.\n");
01007 if (pgsqlConn) {
01008 PQfinish(pgsqlConn);
01009 pgsqlConn = NULL;
01010 };
01011 return -1;
01012 }
01013
01014
01015 ast_mutex_lock(&pgsql_lock);
01016 if (!pgsql_reconnect(database)) {
01017 ast_mutex_unlock(&pgsql_lock);
01018 return -1;
01019 }
01020
01021
01022
01023
01024
01025 ESCAPE_STRING(buf1, keyfield);
01026 ESCAPE_STRING(buf2, lookup);
01027 ast_str_set(&sql, 0, "DELETE FROM %s WHERE %s = '%s'", table, ast_str_buffer(buf1), ast_str_buffer(buf2));
01028 while ((newparam = va_arg(ap, const char *))) {
01029 newval = va_arg(ap, const char *);
01030 ESCAPE_STRING(buf1, newparam);
01031 ESCAPE_STRING(buf2, newval);
01032 ast_str_append(&sql, 0, " AND %s = '%s'", ast_str_buffer(buf1), ast_str_buffer(buf2));
01033 }
01034
01035 ast_debug(1, "PostgreSQL RealTime: Delete SQL: %s\n", ast_str_buffer(sql));
01036
01037 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
01038 ast_log(LOG_WARNING,
01039 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
01040 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
01041 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
01042 ast_mutex_unlock(&pgsql_lock);
01043 return -1;
01044 } else {
01045 ExecStatusType result_status = PQresultStatus(result);
01046 if (result_status != PGRES_COMMAND_OK
01047 && result_status != PGRES_TUPLES_OK
01048 && result_status != PGRES_NONFATAL_ERROR) {
01049 ast_log(LOG_WARNING,
01050 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
01051 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
01052 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
01053 PQresultErrorMessage(result), PQresStatus(result_status));
01054 ast_mutex_unlock(&pgsql_lock);
01055 return -1;
01056 }
01057 }
01058
01059 numrows = atoi(PQcmdTuples(result));
01060 ast_mutex_unlock(&pgsql_lock);
01061
01062 ast_debug(1, "PostgreSQL RealTime: Deleted %d rows on table: %s\n", numrows, table);
01063
01064
01065
01066
01067
01068
01069
01070 if (numrows >= 0)
01071 return (int) numrows;
01072
01073 return -1;
01074 }
01075
01076
01077 static struct ast_config *config_pgsql(const char *database, const char *table,
01078 const char *file, struct ast_config *cfg,
01079 struct ast_flags flags, const char *suggested_incl, const char *who_asked)
01080 {
01081 RAII_VAR(PGresult *, result, NULL, PQclear);
01082 long num_rows;
01083 struct ast_variable *new_v;
01084 struct ast_category *cur_cat = NULL;
01085 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100);
01086 char last[80];
01087 int last_cat_metric = 0;
01088
01089 last[0] = '\0';
01090
01091
01092
01093
01094
01095 database = dbname;
01096
01097 if (!file || !strcmp(file, RES_CONFIG_PGSQL_CONF)) {
01098 ast_log(LOG_WARNING, "PostgreSQL RealTime: Cannot configure myself.\n");
01099 return NULL;
01100 }
01101
01102 ast_str_set(&sql, 0, "SELECT category, var_name, var_val, cat_metric FROM %s "
01103 "WHERE filename='%s' and commented=0"
01104 "ORDER BY cat_metric DESC, var_metric ASC, category, var_name ", table, file);
01105
01106 ast_debug(1, "PostgreSQL RealTime: Static SQL: %s\n", ast_str_buffer(sql));
01107
01108
01109 ast_mutex_lock(&pgsql_lock);
01110 if (!pgsql_reconnect(database)) {
01111 ast_mutex_unlock(&pgsql_lock);
01112 return NULL;
01113 }
01114
01115 if (!(result = PQexec(pgsqlConn, ast_str_buffer(sql)))) {
01116 ast_log(LOG_WARNING,
01117 "PostgreSQL RealTime: Failed to query '%s@%s'. Check debug for more info.\n", table, database);
01118 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
01119 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s\n", PQerrorMessage(pgsqlConn));
01120 ast_mutex_unlock(&pgsql_lock);
01121 return NULL;
01122 } else {
01123 ExecStatusType result_status = PQresultStatus(result);
01124 if (result_status != PGRES_COMMAND_OK
01125 && result_status != PGRES_TUPLES_OK
01126 && result_status != PGRES_NONFATAL_ERROR) {
01127 ast_log(LOG_WARNING,
01128 "PostgreSQL RealTime: Failed to query database. Check debug for more info.\n");
01129 ast_debug(1, "PostgreSQL RealTime: Query: %s\n", ast_str_buffer(sql));
01130 ast_debug(1, "PostgreSQL RealTime: Query Failed because: %s (%s)\n",
01131 PQresultErrorMessage(result), PQresStatus(result_status));
01132 ast_mutex_unlock(&pgsql_lock);
01133 return NULL;
01134 }
01135 }
01136
01137 if ((num_rows = PQntuples(result)) > 0) {
01138 int rowIndex = 0;
01139
01140 ast_debug(1, "PostgreSQL RealTime: Found %ld rows.\n", num_rows);
01141
01142 for (rowIndex = 0; rowIndex < num_rows; rowIndex++) {
01143 char *field_category = PQgetvalue(result, rowIndex, 0);
01144 char *field_var_name = PQgetvalue(result, rowIndex, 1);
01145 char *field_var_val = PQgetvalue(result, rowIndex, 2);
01146 char *field_cat_metric = PQgetvalue(result, rowIndex, 3);
01147 if (!strcmp(field_var_name, "#include")) {
01148 if (!ast_config_internal_load(field_var_val, cfg, flags, "", who_asked)) {
01149 ast_mutex_unlock(&pgsql_lock);
01150 return NULL;
01151 }
01152 continue;
01153 }
01154
01155 if (strcmp(last, field_category) || last_cat_metric != atoi(field_cat_metric)) {
01156 cur_cat = ast_category_new(field_category, "", 99999);
01157 if (!cur_cat)
01158 break;
01159 ast_copy_string(last, field_category, sizeof(last));
01160 last_cat_metric = atoi(field_cat_metric);
01161 ast_category_append(cfg, cur_cat);
01162 }
01163 new_v = ast_variable_new(field_var_name, field_var_val, "");
01164 ast_variable_append(cur_cat, new_v);
01165 }
01166 } else {
01167 ast_log(LOG_WARNING,
01168 "PostgreSQL RealTime: Could not find config '%s' in database.\n", file);
01169 }
01170
01171 ast_mutex_unlock(&pgsql_lock);
01172
01173 return cfg;
01174 }
01175
01176 static int require_pgsql(const char *database, const char *tablename, va_list ap)
01177 {
01178 struct columns *column;
01179 struct tables *table;
01180 char *elm;
01181 int type, size, res = 0;
01182
01183
01184
01185
01186
01187 database = dbname;
01188
01189 table = find_table(database, tablename);
01190 if (!table) {
01191 ast_log(LOG_WARNING, "Table %s not found in database. This table should exist if you're using realtime.\n", tablename);
01192 return -1;
01193 }
01194
01195 while ((elm = va_arg(ap, char *))) {
01196 type = va_arg(ap, require_type);
01197 size = va_arg(ap, int);
01198 AST_LIST_TRAVERSE(&table->columns, column, list) {
01199 if (strcmp(column->name, elm) == 0) {
01200
01201 if ((strncmp(column->type, "char", 4) == 0 || strncmp(column->type, "varchar", 7) == 0 || strcmp(column->type, "bpchar") == 0)) {
01202 if ((size > column->len) && column->len != -1) {
01203 ast_log(LOG_WARNING, "Column '%s' should be at least %d long, but is only %d long.\n", column->name, size, column->len);
01204 res = -1;
01205 }
01206 } else if (strncmp(column->type, "int", 3) == 0) {
01207 int typesize = atoi(column->type + 3);
01208
01209 if ((type == RQ_INTEGER8 || type == RQ_UINTEGER8 ||
01210 type == RQ_INTEGER4 || type == RQ_UINTEGER4 ||
01211 type == RQ_INTEGER3 || type == RQ_UINTEGER3 ||
01212 type == RQ_UINTEGER2) && typesize == 2) {
01213 ast_log(LOG_WARNING, "Column '%s' may not be large enough for the required data length: %d\n", column->name, size);
01214 res = -1;
01215 } else if ((type == RQ_INTEGER8 || type == RQ_UINTEGER8 ||
01216 type == RQ_UINTEGER4) && typesize == 4) {
01217 ast_log(LOG_WARNING, "Column '%s' may not be large enough for the required data length: %d\n", column->name, size);
01218 res = -1;
01219 } else if (type == RQ_CHAR || type == RQ_DATETIME || type == RQ_FLOAT || type == RQ_DATE) {
01220 ast_log(LOG_WARNING, "Column '%s' is of the incorrect type: (need %s(%d) but saw %s)\n",
01221 column->name,
01222 type == RQ_CHAR ? "char" :
01223 type == RQ_DATETIME ? "datetime" :
01224 type == RQ_DATE ? "date" :
01225 type == RQ_FLOAT ? "float" :
01226 "a rather stiff drink ",
01227 size, column->type);
01228 res = -1;
01229 }
01230 } else if (strncmp(column->type, "float", 5) == 0) {
01231 if (!ast_rq_is_int(type) && type != RQ_FLOAT) {
01232 ast_log(LOG_WARNING, "Column %s cannot be a %s\n", column->name, column->type);
01233 res = -1;
01234 }
01235 } else if (strncmp(column->type, "timestamp", 9) == 0) {
01236 if (type != RQ_DATETIME && type != RQ_DATE) {
01237 ast_log(LOG_WARNING, "Column %s cannot be a %s\n", column->name, column->type);
01238 res = -1;
01239 }
01240 } else {
01241 ast_log(LOG_WARNING, "Possibly unsupported column type '%s' on column '%s'\n", column->type, column->name);
01242 res = -1;
01243 }
01244 break;
01245 }
01246 }
01247
01248 if (!column) {
01249 if (requirements == RQ_WARN) {
01250 ast_log(LOG_WARNING, "Table %s requires a column '%s' of size '%d', but no such column exists.\n", tablename, elm, size);
01251 } else {
01252 struct ast_str *sql = ast_str_create(100);
01253 char fieldtype[15];
01254 PGresult *result;
01255
01256 if (requirements == RQ_CREATECHAR || type == RQ_CHAR) {
01257
01258
01259
01260 snprintf(fieldtype, sizeof(fieldtype), "CHAR(%d)",
01261 size < 15 ? size * 2 :
01262 (size * 3 / 2 > 255) ? 255 : size * 3 / 2);
01263 } else if (type == RQ_INTEGER1 || type == RQ_UINTEGER1 || type == RQ_INTEGER2) {
01264 snprintf(fieldtype, sizeof(fieldtype), "INT2");
01265 } else if (type == RQ_UINTEGER2 || type == RQ_INTEGER3 || type == RQ_UINTEGER3 || type == RQ_INTEGER4) {
01266 snprintf(fieldtype, sizeof(fieldtype), "INT4");
01267 } else if (type == RQ_UINTEGER4 || type == RQ_INTEGER8) {
01268 snprintf(fieldtype, sizeof(fieldtype), "INT8");
01269 } else if (type == RQ_UINTEGER8) {
01270
01271 snprintf(fieldtype, sizeof(fieldtype), "CHAR(20)");
01272 } else if (type == RQ_FLOAT) {
01273 snprintf(fieldtype, sizeof(fieldtype), "FLOAT8");
01274 } else if (type == RQ_DATE) {
01275 snprintf(fieldtype, sizeof(fieldtype), "DATE");
01276 } else if (type == RQ_DATETIME) {
01277 snprintf(fieldtype, sizeof(fieldtype), "TIMESTAMP");
01278 } else {
01279 ast_log(LOG_ERROR, "Unrecognized request type %d\n", type);
01280 ast_free(sql);
01281 continue;
01282 }
01283 ast_str_set(&sql, 0, "ALTER TABLE %s ADD COLUMN %s %s", tablename, elm, fieldtype);
01284 ast_debug(1, "About to lock pgsql_lock (running alter on table '%s' to add column '%s')\n", tablename, elm);
01285
01286 ast_mutex_lock(&pgsql_lock);
01287 if (!pgsql_reconnect(database)) {
01288 ast_mutex_unlock(&pgsql_lock);
01289 ast_log(LOG_ERROR, "Unable to add column: %s\n", ast_str_buffer(sql));
01290 ast_free(sql);
01291 continue;
01292 }
01293
01294 ast_debug(1, "About to run ALTER query on table '%s' to add column '%s'\n", tablename, elm);
01295 result = PQexec(pgsqlConn, ast_str_buffer(sql));
01296 ast_debug(1, "Finished running ALTER query on table '%s'\n", tablename);
01297 if (PQresultStatus(result) != PGRES_COMMAND_OK) {
01298 ast_log(LOG_ERROR, "Unable to add column: %s\n", ast_str_buffer(sql));
01299 }
01300 PQclear(result);
01301 ast_mutex_unlock(&pgsql_lock);
01302
01303 ast_free(sql);
01304 }
01305 }
01306 }
01307 release_table(table);
01308 return res;
01309 }
01310
01311 static int unload_pgsql(const char *database, const char *tablename)
01312 {
01313 struct tables *cur;
01314
01315
01316
01317
01318
01319 database = dbname;
01320
01321 ast_debug(2, "About to lock table cache list\n");
01322 AST_LIST_LOCK(&psql_tables);
01323 ast_debug(2, "About to traverse table cache list\n");
01324 AST_LIST_TRAVERSE_SAFE_BEGIN(&psql_tables, cur, list) {
01325 if (strcmp(cur->name, tablename) == 0) {
01326 ast_debug(2, "About to remove matching cache entry\n");
01327 AST_LIST_REMOVE_CURRENT(list);
01328 ast_debug(2, "About to destroy matching cache entry\n");
01329 destroy_table(cur);
01330 ast_debug(1, "Cache entry '%s@%s' destroyed\n", tablename, database);
01331 break;
01332 }
01333 }
01334 AST_LIST_TRAVERSE_SAFE_END
01335 AST_LIST_UNLOCK(&psql_tables);
01336 ast_debug(2, "About to return\n");
01337 return cur ? 0 : -1;
01338 }
01339
01340 static struct ast_config_engine pgsql_engine = {
01341 .name = "pgsql",
01342 .load_func = config_pgsql,
01343 .realtime_func = realtime_pgsql,
01344 .realtime_multi_func = realtime_multi_pgsql,
01345 .store_func = store_pgsql,
01346 .destroy_func = destroy_pgsql,
01347 .update_func = update_pgsql,
01348 .update2_func = update2_pgsql,
01349 .require_func = require_pgsql,
01350 .unload_func = unload_pgsql,
01351 };
01352
01353 static int load_module(void)
01354 {
01355 if(!parse_config(0))
01356 return AST_MODULE_LOAD_DECLINE;
01357
01358 ast_config_engine_register(&pgsql_engine);
01359 ast_verb(1, "PostgreSQL RealTime driver loaded.\n");
01360 ast_cli_register_multiple(cli_realtime, ARRAY_LEN(cli_realtime));
01361
01362 return 0;
01363 }
01364
01365 static int unload_module(void)
01366 {
01367 struct tables *table;
01368
01369 ast_mutex_lock(&pgsql_lock);
01370
01371 if (pgsqlConn) {
01372 PQfinish(pgsqlConn);
01373 pgsqlConn = NULL;
01374 }
01375 ast_cli_unregister_multiple(cli_realtime, ARRAY_LEN(cli_realtime));
01376 ast_config_engine_deregister(&pgsql_engine);
01377 ast_verb(1, "PostgreSQL RealTime unloaded.\n");
01378
01379
01380 AST_LIST_LOCK(&psql_tables);
01381 while ((table = AST_LIST_REMOVE_HEAD(&psql_tables, list))) {
01382 destroy_table(table);
01383 }
01384 AST_LIST_UNLOCK(&psql_tables);
01385
01386
01387 ast_mutex_unlock(&pgsql_lock);
01388
01389 return 0;
01390 }
01391
01392 static int reload(void)
01393 {
01394 parse_config(1);
01395
01396 return 0;
01397 }
01398
01399 static int parse_config(int is_reload)
01400 {
01401 struct ast_config *config;
01402 const char *s;
01403 struct ast_flags config_flags = { is_reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
01404
01405 config = ast_config_load(RES_CONFIG_PGSQL_CONF, config_flags);
01406 if (config == CONFIG_STATUS_FILEUNCHANGED) {
01407 return 0;
01408 }
01409
01410 if (config == CONFIG_STATUS_FILEMISSING || config == CONFIG_STATUS_FILEINVALID) {
01411 ast_log(LOG_WARNING, "Unable to load config %s\n", RES_CONFIG_PGSQL_CONF);
01412 return 0;
01413 }
01414
01415 ast_mutex_lock(&pgsql_lock);
01416
01417 if (pgsqlConn) {
01418 PQfinish(pgsqlConn);
01419 pgsqlConn = NULL;
01420 }
01421
01422 if (!(s = ast_variable_retrieve(config, "general", "dbuser"))) {
01423 ast_log(LOG_WARNING,
01424 "PostgreSQL RealTime: No database user found, using 'asterisk' as default.\n");
01425 strcpy(dbuser, "asterisk");
01426 } else {
01427 ast_copy_string(dbuser, s, sizeof(dbuser));
01428 }
01429
01430 if (!(s = ast_variable_retrieve(config, "general", "dbpass"))) {
01431 ast_log(LOG_WARNING,
01432 "PostgreSQL RealTime: No database password found, using 'asterisk' as default.\n");
01433 strcpy(dbpass, "asterisk");
01434 } else {
01435 ast_copy_string(dbpass, s, sizeof(dbpass));
01436 }
01437
01438 if (!(s = ast_variable_retrieve(config, "general", "dbhost"))) {
01439 ast_log(LOG_WARNING,
01440 "PostgreSQL RealTime: No database host found, using localhost via socket.\n");
01441 dbhost[0] = '\0';
01442 } else {
01443 ast_copy_string(dbhost, s, sizeof(dbhost));
01444 }
01445
01446 if (!(s = ast_variable_retrieve(config, "general", "dbname"))) {
01447 ast_log(LOG_WARNING,
01448 "PostgreSQL RealTime: No database name found, using 'asterisk' as default.\n");
01449 strcpy(dbname, "asterisk");
01450 } else {
01451 ast_copy_string(dbname, s, sizeof(dbname));
01452 }
01453
01454 if (!(s = ast_variable_retrieve(config, "general", "dbport"))) {
01455 ast_log(LOG_WARNING,
01456 "PostgreSQL RealTime: No database port found, using 5432 as default.\n");
01457 dbport = 5432;
01458 } else {
01459 dbport = atoi(s);
01460 }
01461
01462 if (!ast_strlen_zero(dbhost)) {
01463
01464 } else if (!(s = ast_variable_retrieve(config, "general", "dbsock"))) {
01465 ast_log(LOG_WARNING,
01466 "PostgreSQL RealTime: No database socket found, using '/tmp/.s.PGSQL.%d' as default.\n", dbport);
01467 strcpy(dbsock, "/tmp");
01468 } else {
01469 ast_copy_string(dbsock, s, sizeof(dbsock));
01470 }
01471
01472 if (!(s = ast_variable_retrieve(config, "general", "requirements"))) {
01473 ast_log(LOG_WARNING,
01474 "PostgreSQL RealTime: no requirements setting found, using 'warn' as default.\n");
01475 requirements = RQ_WARN;
01476 } else if (!strcasecmp(s, "createclose")) {
01477 requirements = RQ_CREATECLOSE;
01478 } else if (!strcasecmp(s, "createchar")) {
01479 requirements = RQ_CREATECHAR;
01480 }
01481
01482 ast_config_destroy(config);
01483
01484 if (option_debug) {
01485 if (!ast_strlen_zero(dbhost)) {
01486 ast_debug(1, "PostgreSQL RealTime Host: %s\n", dbhost);
01487 ast_debug(1, "PostgreSQL RealTime Port: %i\n", dbport);
01488 } else {
01489 ast_debug(1, "PostgreSQL RealTime Socket: %s\n", dbsock);
01490 }
01491 ast_debug(1, "PostgreSQL RealTime User: %s\n", dbuser);
01492 ast_debug(1, "PostgreSQL RealTime Password: %s\n", dbpass);
01493 ast_debug(1, "PostgreSQL RealTime DBName: %s\n", dbname);
01494 }
01495
01496 if (!pgsql_reconnect(NULL)) {
01497 ast_log(LOG_WARNING,
01498 "PostgreSQL RealTime: Couldn't establish connection. Check debug.\n");
01499 ast_debug(1, "PostgreSQL RealTime: Cannot Connect: %s\n", PQerrorMessage(pgsqlConn));
01500 }
01501
01502 ast_verb(2, "PostgreSQL RealTime reloaded.\n");
01503
01504
01505 ast_mutex_unlock(&pgsql_lock);
01506
01507 return 1;
01508 }
01509
01510 static int pgsql_reconnect(const char *database)
01511 {
01512 char my_database[50];
01513
01514 ast_copy_string(my_database, S_OR(database, dbname), sizeof(my_database));
01515
01516
01517
01518 if (pgsqlConn && PQstatus(pgsqlConn) != CONNECTION_OK) {
01519 PQfinish(pgsqlConn);
01520 pgsqlConn = NULL;
01521 }
01522
01523
01524 if ((!pgsqlConn) && (!ast_strlen_zero(dbhost) || !ast_strlen_zero(dbsock)) && !ast_strlen_zero(dbuser) && !ast_strlen_zero(my_database)) {
01525 struct ast_str *connInfo = ast_str_create(128);
01526
01527 ast_str_set(&connInfo, 0, "host=%s port=%d dbname=%s user=%s",
01528 S_OR(dbhost, dbsock), dbport, my_database, dbuser);
01529 if (!ast_strlen_zero(dbpass))
01530 ast_str_append(&connInfo, 0, " password=%s", dbpass);
01531
01532 ast_debug(1, "%u connInfo=%s\n", (unsigned int)ast_str_size(connInfo), ast_str_buffer(connInfo));
01533 pgsqlConn = PQconnectdb(ast_str_buffer(connInfo));
01534 ast_debug(1, "%u connInfo=%s\n", (unsigned int)ast_str_size(connInfo), ast_str_buffer(connInfo));
01535 ast_free(connInfo);
01536 connInfo = NULL;
01537
01538 ast_debug(1, "pgsqlConn=%p\n", pgsqlConn);
01539 if (pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) {
01540 ast_debug(1, "PostgreSQL RealTime: Successfully connected to database.\n");
01541 connect_time = time(NULL);
01542 version = PQserverVersion(pgsqlConn);
01543 return 1;
01544 } else {
01545 ast_log(LOG_ERROR,
01546 "PostgreSQL RealTime: Failed to connect database %s on %s: %s\n",
01547 my_database, dbhost, PQresultErrorMessage(NULL));
01548 return 0;
01549 }
01550 } else {
01551 ast_debug(1, "PostgreSQL RealTime: One or more of the parameters in the config does not pass our validity checks.\n");
01552 return 1;
01553 }
01554 }
01555
01556 static char *handle_cli_realtime_pgsql_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01557 {
01558 struct tables *cur;
01559 int l, which;
01560 char *ret = NULL;
01561
01562 switch (cmd) {
01563 case CLI_INIT:
01564 e->command = "realtime show pgsql cache";
01565 e->usage =
01566 "Usage: realtime show pgsql cache [<table>]\n"
01567 " Shows table cache for the PostgreSQL RealTime driver\n";
01568 return NULL;
01569 case CLI_GENERATE:
01570 if (a->argc != 4) {
01571 return NULL;
01572 }
01573 l = strlen(a->word);
01574 which = 0;
01575 AST_LIST_LOCK(&psql_tables);
01576 AST_LIST_TRAVERSE(&psql_tables, cur, list) {
01577 if (!strncasecmp(a->word, cur->name, l) && ++which > a->n) {
01578 ret = ast_strdup(cur->name);
01579 break;
01580 }
01581 }
01582 AST_LIST_UNLOCK(&psql_tables);
01583 return ret;
01584 }
01585
01586 if (a->argc == 4) {
01587
01588 AST_LIST_LOCK(&psql_tables);
01589 AST_LIST_TRAVERSE(&psql_tables, cur, list) {
01590 ast_cli(a->fd, "%s\n", cur->name);
01591 }
01592 AST_LIST_UNLOCK(&psql_tables);
01593 } else if (a->argc == 5) {
01594
01595 if ((cur = find_table(NULL, a->argv[4]))) {
01596 struct columns *col;
01597 ast_cli(a->fd, "Columns for Table Cache '%s':\n", a->argv[4]);
01598 ast_cli(a->fd, "%-20.20s %-20.20s %-3.3s %-8.8s\n", "Name", "Type", "Len", "Nullable");
01599 AST_LIST_TRAVERSE(&cur->columns, col, list) {
01600 ast_cli(a->fd, "%-20.20s %-20.20s %3d %-8.8s\n", col->name, col->type, col->len, col->notnull ? "NOT NULL" : "");
01601 }
01602 release_table(cur);
01603 } else {
01604 ast_cli(a->fd, "No such table '%s'\n", a->argv[4]);
01605 }
01606 }
01607 return 0;
01608 }
01609
01610 static char *handle_cli_realtime_pgsql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
01611 {
01612 char status[256], credentials[100] = "";
01613 int ctimesec = time(NULL) - connect_time;
01614
01615 switch (cmd) {
01616 case CLI_INIT:
01617 e->command = "realtime show pgsql status";
01618 e->usage =
01619 "Usage: realtime show pgsql status\n"
01620 " Shows connection information for the PostgreSQL RealTime driver\n";
01621 return NULL;
01622 case CLI_GENERATE:
01623 return NULL;
01624 }
01625
01626 if (a->argc != 4)
01627 return CLI_SHOWUSAGE;
01628
01629 if (pgsqlConn && PQstatus(pgsqlConn) == CONNECTION_OK) {
01630 if (!ast_strlen_zero(dbhost))
01631 snprintf(status, sizeof(status), "Connected to %s@%s, port %d", dbname, dbhost, dbport);
01632 else if (!ast_strlen_zero(dbsock))
01633 snprintf(status, sizeof(status), "Connected to %s on socket file %s", dbname, dbsock);
01634 else
01635 snprintf(status, sizeof(status), "Connected to %s@%s", dbname, dbhost);
01636
01637 if (!ast_strlen_zero(dbuser))
01638 snprintf(credentials, sizeof(credentials), " with username %s", dbuser);
01639
01640 if (ctimesec > 31536000)
01641 ast_cli(a->fd, "%s%s for %d years, %d days, %d hours, %d minutes, %d seconds.\n",
01642 status, credentials, ctimesec / 31536000, (ctimesec % 31536000) / 86400,
01643 (ctimesec % 86400) / 3600, (ctimesec % 3600) / 60, ctimesec % 60);
01644 else if (ctimesec > 86400)
01645 ast_cli(a->fd, "%s%s for %d days, %d hours, %d minutes, %d seconds.\n", status,
01646 credentials, ctimesec / 86400, (ctimesec % 86400) / 3600, (ctimesec % 3600) / 60,
01647 ctimesec % 60);
01648 else if (ctimesec > 3600)
01649 ast_cli(a->fd, "%s%s for %d hours, %d minutes, %d seconds.\n", status, credentials,
01650 ctimesec / 3600, (ctimesec % 3600) / 60, ctimesec % 60);
01651 else if (ctimesec > 60)
01652 ast_cli(a->fd, "%s%s for %d minutes, %d seconds.\n", status, credentials, ctimesec / 60,
01653 ctimesec % 60);
01654 else
01655 ast_cli(a->fd, "%s%s for %d seconds.\n", status, credentials, ctimesec);
01656
01657 return CLI_SUCCESS;
01658 } else {
01659 return CLI_FAILURE;
01660 }
01661 }
01662
01663
01664 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PostgreSQL RealTime Configuration Driver",
01665 .load = load_module,
01666 .unload = unload_module,
01667 .reload = reload,
01668 .load_pri = AST_MODPRI_REALTIME_DRIVER,
01669 );