Asterisk - The Open Source Telephony Project GIT-master-7921072
res_config_mysql.c
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1/*
2 * Asterisk -- An open source telephony toolkit.
3 *
4 * Copyright (C) 1999-2005, Digium, Inc.
5 *
6 * Mark Spencer <markster@digium.com> - Asterisk Author
7 * Matthew Boehm <mboehm@cytelcom.com> - MySQL RealTime Driver Author
8 *
9 * See http://www.asterisk.org for more information about
10 * the Asterisk project. Please do not directly contact
11 * any of the maintainers of this project for assistance;
12 * the project provides a web site, mailing lists and IRC
13 * channels for your use.
14 *
15 * This program is free software, distributed under the terms of
16 * the GNU General Public License Version 2. See the LICENSE file
17 * at the top of the source tree.
18 */
19
20/*!
21 * \file
22 * \brief MySQL CDR backend
23 */
24
25/*** MODULEINFO
26 <depend>mysqlclient</depend>
27 <defaultenabled>no</defaultenabled>
28 <support_level>extended</support_level>
29 ***/
30
31#include "asterisk.h"
32
33#include <sys/stat.h>
34
35#include <mysql/mysql.h>
36#include <mysql/errmsg.h>
37
38#include "asterisk/channel.h"
39#include "asterisk/logger.h"
40#include "asterisk/config.h"
41#include "asterisk/module.h"
42#include "asterisk/lock.h"
43#include "asterisk/options.h"
44#include "asterisk/cli.h"
45#include "asterisk/utils.h"
47#include "asterisk/strings.h"
48
49#define RES_CONFIG_MYSQL_CONF "res_config_mysql.conf"
50#define RES_CONFIG_MYSQL_CONF_OLD "res_mysql.conf"
51#define READHANDLE 0
52#define WRITEHANDLE 1
53
54#define ESCAPE_STRING(buf, var) \
55 do { \
56 struct ast_str *semi = ast_str_thread_get(&scratch2_buf, strlen(var) * 3 + 1); \
57 const char *chunk = var; \
58 ast_str_reset(semi); \
59 for (; *chunk; chunk++) { \
60 if (strchr(";^", *chunk)) { \
61 ast_str_append(&semi, 0, "^%02hhX", *chunk); \
62 } else { \
63 ast_str_append(&semi, 0, "%c", *chunk); \
64 } \
65 } \
66 if (ast_str_strlen(semi) * 2 + 1 > ast_str_size(buf)) { \
67 ast_str_make_space(&(buf), ast_str_strlen(semi) * 2 + 1); \
68 } \
69 mysql_real_escape_string(&dbh->handle, ast_str_buffer(buf), ast_str_buffer(semi), ast_str_strlen(semi)); \
70 } while (0)
71
80
82
83struct mysql_conn {
86 MYSQL handle;
87 char host[MAXHOSTNAMELEN];
88 char name[50];
89 char user[50];
90 char pass[50];
91 char sock[50];
92 char charset[50];
93 int port;
94 int connected;
95 time_t connect_time;
97 char unique_name[0];
98};
99
100struct columns {
101 char *name;
102 char *type;
103 char *dflt;
104 char null;
105 int len;
107};
108
109struct tables {
114 char name[0];
115};
116
119
120static int parse_config(int reload);
121static int mysql_reconnect(struct mysql_conn *conn);
122static char *handle_cli_realtime_mysql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
123static char *handle_cli_realtime_mysql_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a);
124static int load_mysql_config(struct ast_config *config, const char *category, struct mysql_conn *conn);
125static int require_mysql(const char *database, const char *tablename, va_list ap);
126
128 AST_CLI_DEFINE(handle_cli_realtime_mysql_status, "Shows connection information for the MySQL RealTime driver"),
129 AST_CLI_DEFINE(handle_cli_realtime_mysql_cache, "Shows cached tables within the MySQL realtime driver"),
130};
131
132static struct mysql_conn *find_database(const char *database, int for_write)
133{
134 char *whichdb;
135 const char *ptr;
136 struct mysql_conn *cur;
137
138 if ((ptr = strchr(database, '/'))) {
139 /* Multiple databases encoded within string */
140 if (for_write) {
141 whichdb = ast_strdupa(ptr + 1);
142 } else {
143 whichdb = ast_alloca(ptr - database + 1);
144 strncpy(whichdb, database, ptr - database);
145 whichdb[ptr - database] = '\0';
146 }
147 } else {
148 whichdb = ast_strdupa(database);
149 }
150
152 AST_RWLIST_TRAVERSE(&databases, cur, list) {
153 if (!strcmp(cur->unique_name, whichdb)) {
154 ast_mutex_lock(&cur->lock);
155 break;
156 }
157 }
159 return cur;
160}
161
162#define release_database(a) ast_mutex_unlock(&(a)->lock)
163
164static void destroy_table(struct tables *table)
165{
166 struct columns *column;
167 ast_mutex_lock(&table->lock);
168 while ((column = AST_LIST_REMOVE_HEAD(&table->columns, list))) {
169 ast_free(column);
170 }
171 ast_mutex_unlock(&table->lock);
172 ast_mutex_destroy(&table->lock);
174}
175
176static struct tables *find_table(const char *database, const char *tablename)
177{
178 struct columns *column;
179 struct tables *table;
180 struct ast_str *sql = ast_str_thread_get(&find_buf, 30);
181 char *fname, *ftype, *flen, *fdflt, *fnull;
182 struct mysql_conn *dbh;
183 MYSQL_RES *result;
184 MYSQL_ROW row;
185
186 if (!(dbh = find_database(database, 1))) {
187 return NULL;
188 }
189
192 if (!strcasecmp(table->name, tablename)) {
193 ast_mutex_lock(&table->lock);
195 release_database(dbh);
196 return table;
197 }
198 }
199
200 /* Not found, scan the table */
201 ast_str_set(&sql, 0, "DESC %s", tablename);
202
203 if (!mysql_reconnect(dbh)) {
204 release_database(dbh);
206 return NULL;
207 }
208
209 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
210 ast_log(LOG_ERROR, "Failed to query database '%s', table '%s' columns: %s\n", database, tablename, mysql_error(&dbh->handle));
211 release_database(dbh);
213 return NULL;
214 }
215
216 if (!(table = ast_calloc(1, sizeof(*table) + strlen(tablename) + 1))) {
217 ast_log(LOG_ERROR, "Unable to allocate memory for new table structure\n");
218 release_database(dbh);
220 return NULL;
221 }
222 strcpy(table->name, tablename); /* SAFE */
223 table->database = dbh;
224 ast_mutex_init(&table->lock);
226
227 if ((result = mysql_store_result(&dbh->handle))) {
228 while ((row = mysql_fetch_row(result))) {
229 fname = row[0];
230 ftype = row[1];
231 fnull = row[2];
232 fdflt = row[4];
233 ast_verb(4, "Found column '%s' of type '%s'\n", fname, ftype);
234
235 if (fdflt == NULL) {
236 fdflt = "";
237 }
238
239 if (!(column = ast_calloc(1, sizeof(*column) + strlen(fname) + strlen(ftype) + strlen(fdflt) + 3))) {
240 ast_log(LOG_ERROR, "Unable to allocate column element %s for %s\n", fname, tablename);
242 release_database(dbh);
244 return NULL;
245 }
246
247 if ((flen = strchr(ftype, '('))) {
248 sscanf(flen, "(%30d)", &column->len);
249 } else {
250 /* Columns like dates, times, and timestamps don't have a length */
251 column->len = -1;
252 }
253
254 column->name = (char *)column + sizeof(*column);
255 column->type = (char *)column + sizeof(*column) + strlen(fname) + 1;
256 column->dflt = (char *)column + sizeof(*column) + strlen(fname) + 1 + strlen(ftype) + 1;
257 strcpy(column->name, fname);
258 strcpy(column->type, ftype);
259 strcpy(column->dflt, fdflt);
260 column->null = (strcmp(fnull, "YES") == 0 ? 1 : 0);
261 AST_LIST_INSERT_TAIL(&table->columns, column, list);
262 }
263 mysql_free_result(result);
264 }
265
267 ast_mutex_lock(&table->lock);
269 release_database(dbh);
270 return table;
271}
272
273static void release_table(struct tables *table)
274{
275 if (table) {
276 ast_mutex_unlock(&table->lock);
277 }
278}
279
280static struct columns *find_column(struct tables *table, const char *colname)
281{
282 struct columns *column;
283
284 AST_LIST_TRAVERSE(&table->columns, column, list) {
285 if (strcmp(column->name, colname) == 0) {
286 break;
287 }
288 }
289
290 return column;
291}
292
293static char *decode_chunk(char *chunk)
294{
295 char *orig = chunk;
296 for (; *chunk; chunk++) {
297 if (*chunk == '^' && strchr("0123456789ABCDEFabcdef", chunk[1]) && strchr("0123456789ABCDEFabcdef", chunk[2])) {
298 sscanf(chunk + 1, "%02hhX", chunk);
299 memmove(chunk + 1, chunk + 3, strlen(chunk + 3) + 1);
300 }
301 }
302 return orig;
303}
304
305#define IS_SQL_LIKE_CLAUSE(x) ((x) && ast_ends_with(x, " LIKE"))
306
307/* MySQL requires us to escape the escape... yo dawg */
308static char *ESCAPE_CLAUSE = " ESCAPE '\\\\'";
309
310static struct ast_variable *realtime_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
311{
312 struct mysql_conn *dbh;
313 MYSQL_RES *result;
314 MYSQL_ROW row;
315 MYSQL_FIELD *fields;
316 int numFields, i;
317 struct ast_str *sql = ast_str_thread_get(&sql_buf, 16);
319 char *stringp;
320 char *chunk;
321 char *op;
322 char *escape = "";
323 const struct ast_variable *field = rt_fields;
324 struct ast_variable *var=NULL, *prev=NULL;
325
326 if (!(dbh = find_database(database, 0))) {
327 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: %s (check res_mysql.conf)\n", database);
328 return NULL;
329 }
330
331 if (!table) {
332 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
333 release_database(dbh);
334 return NULL;
335 }
336
337 /* Get the first parameter and first value in our list of passed paramater/value pairs */
338 if (!field) {
339 ast_log(LOG_WARNING, "MySQL RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
340 release_database(dbh);
341 return NULL;
342 }
343
344 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
345 if (!mysql_reconnect(dbh)) {
346 release_database(dbh);
347 return NULL;
348 }
349
350 /* Create the first part of the query using the first parameter/value pairs we just extracted
351 If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
352
353 if (!strchr(field->name, ' ')) {
354 op = " =";
355 } else {
356 op = "";
357 if (IS_SQL_LIKE_CLAUSE(field->name)) {
358 escape = ESCAPE_CLAUSE;
359 }
360 }
361
362 ESCAPE_STRING(buf, field->value);
363 ast_str_set(&sql, 0, "SELECT * FROM %s WHERE %s%s '%s'%s", table, field->name, op, ast_str_buffer(buf), escape);
364 while ((field = field->next)) {
365 escape = "";
366 if (!strchr(field->name, ' ')) {
367 op = " =";
368 } else {
369 op = "";
370 if (IS_SQL_LIKE_CLAUSE(field->name)) {
371 escape = ESCAPE_CLAUSE;
372 }
373 }
374 ESCAPE_STRING(buf, field->value);
375 ast_str_append(&sql, 0, " AND %s%s '%s'%s", field->name, op, ast_str_buffer(buf), escape);
376 }
377
378 ast_debug(1, "MySQL RealTime: Retrieve SQL: %s\n", ast_str_buffer(sql));
379
380 /* Execution. */
381 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
382 ast_log(LOG_WARNING, "MySQL RealTime: Failed to query database: %s\n", mysql_error(&dbh->handle));
383 release_database(dbh);
384 return NULL;
385 }
386
387 if ((result = mysql_store_result(&dbh->handle))) {
388 numFields = mysql_num_fields(result);
389 fields = mysql_fetch_fields(result);
390
391 while ((row = mysql_fetch_row(result))) {
392 for (i = 0; i < numFields; i++) {
393 /* Encode NULL values separately from blank values, for the Realtime API */
394 if (row[i] == NULL) {
395 row[i] = "";
396 } else if (ast_strlen_zero(row[i])) {
397 row[i] = " ";
398 }
399 for (stringp = row[i], chunk = strsep(&stringp, ";"); chunk; chunk = strsep(&stringp, ";")) {
400 if (prev) {
401 if ((prev->next = ast_variable_new(fields[i].name, decode_chunk(chunk), ""))) {
402 prev = prev->next;
403 }
404 } else {
405 prev = var = ast_variable_new(fields[i].name, decode_chunk(chunk), "");
406 }
407 }
408 }
409 }
410 } else {
411 ast_debug(1, "MySQL RealTime: Could not find any rows in table %s.\n", table);
412 }
413
414 release_database(dbh);
415 mysql_free_result(result);
416
417 return var;
418}
419
420static struct ast_config *realtime_multi_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
421{
422 struct mysql_conn *dbh;
423 MYSQL_RES *result;
424 MYSQL_ROW row;
425 MYSQL_FIELD *fields;
426 int numFields, i;
427 struct ast_str *sql = ast_str_thread_get(&sql_buf, 16);
429 const char *initfield = NULL;
430 char *stringp;
431 char *chunk;
432 char *op;
433 char *escape = "";
434 const struct ast_variable *field = rt_fields;
435 struct ast_variable *var = NULL;
436 struct ast_config *cfg = NULL;
437 struct ast_category *cat = NULL;
438
439 if (!(dbh = find_database(database, 0))) {
440 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: '%s' (check res_mysql.conf)\n", database);
441 return NULL;
442 }
443
444 if (!table) {
445 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
446 release_database(dbh);
447 return NULL;
448 }
449
450 if (!(cfg = ast_config_new())) {
451 /* If I can't alloc memory at this point, why bother doing anything else? */
452 ast_log(LOG_WARNING, "Out of memory!\n");
453 release_database(dbh);
454 return NULL;
455 }
456
457 /* Get the first parameter and first value in our list of passed paramater/value pairs */
458 if (!field) {
459 ast_log(LOG_WARNING, "MySQL RealTime: Realtime retrieval requires at least 1 parameter and 1 value to search on.\n");
461 release_database(dbh);
462 return NULL;
463 }
464
465 initfield = ast_strdupa(field->name);
466 if ((op = strchr(initfield, ' '))) {
467 *op = '\0';
468 }
469
470 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
471 if (!mysql_reconnect(dbh)) {
472 release_database(dbh);
474 return NULL;
475 }
476
477 /* Create the first part of the query using the first parameter/value pairs we just extracted
478 If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
479
480 if (!strchr(field->name, ' ')) {
481 op = " =";
482 } else {
483 op = "";
484 if (IS_SQL_LIKE_CLAUSE(field->name)) {
485 escape = ESCAPE_CLAUSE;
486 }
487 }
488
489 ESCAPE_STRING(buf, field->value);
490 ast_str_set(&sql, 0, "SELECT * FROM %s WHERE %s%s '%s'%s", table, field->name, op, ast_str_buffer(buf), escape);
491 while ((field = field->next)) {
492 escape = "";
493 if (!strchr(field->name, ' ')) {
494 op = " =";
495 } else {
496 op = "";
497 if (IS_SQL_LIKE_CLAUSE(field->name)) {
498 escape = ESCAPE_CLAUSE;
499 }
500 }
501 ESCAPE_STRING(buf, field->value);
502 ast_str_append(&sql, 0, " AND %s%s '%s'%s", field->name, op, ast_str_buffer(buf), escape);
503 }
504
505 if (initfield) {
506 ast_str_append(&sql, 0, " ORDER BY %s", initfield);
507 }
508
509 ast_debug(1, "MySQL RealTime: Retrieve SQL: %s\n", ast_str_buffer(sql));
510
511 /* Execution. */
512 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
513 ast_log(LOG_WARNING, "MySQL RealTime: Failed to query database: %s\n", mysql_error(&dbh->handle));
514 release_database(dbh);
516 return NULL;
517 }
518
519 if ((result = mysql_store_result(&dbh->handle))) {
520 numFields = mysql_num_fields(result);
521 fields = mysql_fetch_fields(result);
522
523 while ((row = mysql_fetch_row(result))) {
524 var = NULL;
526 if (!cat) {
527 continue;
528 }
529 for (i = 0; i < numFields; i++) {
530 if (ast_strlen_zero(row[i]))
531 continue;
532 for (stringp = row[i], chunk = strsep(&stringp, ";"); chunk; chunk = strsep(&stringp, ";")) {
533 if (chunk && !ast_strlen_zero(decode_chunk(ast_strip(chunk)))) {
534 if (initfield && !strcmp(initfield, fields[i].name)) {
535 ast_category_rename(cat, chunk);
536 }
537 var = ast_variable_new(fields[i].name, chunk, "");
539 }
540 }
541 }
542 ast_category_append(cfg, cat);
543 }
544 } else {
545 ast_debug(1, "MySQL RealTime: Could not find any rows in table %s.\n", table);
546 }
547
548 release_database(dbh);
549 mysql_free_result(result);
550
551 return cfg;
552}
553
554static int update_mysql(const char *database, const char *tablename, const char *keyfield, const char *lookup, const struct ast_variable *rt_fields)
555{
556 struct mysql_conn *dbh;
557 uint64_t numrows;
558 const struct ast_variable *field = rt_fields;
559 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100), *buf = ast_str_thread_get(&scratch_buf, 100);
560 struct tables *table;
561 struct columns *column = NULL;
562
563 if (!(dbh = find_database(database, 1))) {
564 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: '%s' (check res_mysql.conf)\n", database);
565 return -1;
566 }
567
568 if (!tablename) {
569 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
570 release_database(dbh);
571 return -1;
572 }
573
574 if (!(table = find_table(database, tablename))) {
575 ast_log(LOG_ERROR, "Table '%s' does not exist!!\n", tablename);
576 release_database(dbh);
577 return -1;
578 }
579
580 if (!(column = find_column(table, keyfield))) {
581 ast_log(LOG_ERROR, "MySQL RealTime: Updating on column '%s', but that column does not exist within the table '%s' (db '%s')!\n", keyfield, tablename, database);
583 release_database(dbh);
584 return -1;
585 }
586
587 /* Get the first parameter and first value in our list of passed paramater/value pairs */
588 if (!field) {
589 ast_log(LOG_WARNING, "MySQL RealTime: Realtime update requires at least 1 parameter and 1 value to update.\n");
591 release_database(dbh);
592 return -1;
593 }
594
595 /* Check that the column exists in the table */
596 if (!(column = find_column(table, field->name))) {
597 ast_log(LOG_ERROR, "MySQL RealTime: Updating column '%s', but that column does not exist within the table '%s' (first pair MUST exist)!\n", field->name, tablename);
599 release_database(dbh);
600 return -1;
601 }
602
603 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
604 if (!mysql_reconnect(dbh)) {
606 release_database(dbh);
607 return -1;
608 }
609
610 /* Create the first part of the query using the first parameter/value pairs we just extracted
611 If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
612
613 ESCAPE_STRING(buf, field->value);
614 ast_str_set(&sql, 0, "UPDATE %s SET `%s` = '%s'", tablename, field->name, ast_str_buffer(buf));
615
616 while ((field = field->next)) {
617 /* If the column is not within the table, then skip it */
618 if (!(column = find_column(table, field->name))) {
619 ast_log(LOG_WARNING, "Attempted to update column '%s' in table '%s', but column does not exist!\n", field->name, tablename);
620 continue;
621 }
622
623 ESCAPE_STRING(buf, field->value);
624 ast_str_append(&sql, 0, ", `%s` = '%s'", field->name, ast_str_buffer(buf));
625 }
626
627 ESCAPE_STRING(buf, lookup);
628 ast_str_append(&sql, 0, " WHERE `%s` = '%s'", keyfield, ast_str_buffer(buf));
629
630 ast_debug(1, "MySQL RealTime: Update SQL: %s\n", ast_str_buffer(sql));
631
632 /* Execution. */
633 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
634 ast_log(LOG_WARNING, "MySQL RealTime: Failed to update database: %s\n", mysql_error(&dbh->handle));
636 release_database(dbh);
637 return -1;
638 }
639
640 numrows = mysql_affected_rows(&dbh->handle);
642 release_database(dbh);
643
644 ast_debug(1, "MySQL RealTime: Updated %" PRIu64 " rows on table: %s\n", numrows, tablename);
645
646 /* From http://dev.mysql.com/doc/mysql/en/mysql-affected-rows.html
647 * An integer greater than zero indicates the number of rows affected
648 * Zero indicates that no records were updated
649 * -1 indicates that the query returned an error (although, if the query failed, it should have been caught above.)
650 */
651
652 return (int)numrows;
653}
654
655static int update2_mysql(const char *database, const char *tablename, const struct ast_variable *lookup_fields, const struct ast_variable *update_fields)
656{
657 struct mysql_conn *dbh;
658 uint64_t numrows;
659 int first;
660 const struct ast_variable *field;
661 struct ast_str *sql = ast_str_thread_get(&sql_buf, 100), *buf = ast_str_thread_get(&scratch_buf, 100);
662 struct ast_str *where = ast_str_thread_get(&sql2_buf, 100);
663 struct tables *table;
664 struct columns *column = NULL;
665
666 if (!tablename) {
667 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
668 return -1;
669 }
670
671 if (!(dbh = find_database(database, 1))) {
672 ast_log(LOG_ERROR, "Invalid database specified: %s\n", database);
673 return -1;
674 }
675
676 if (!(table = find_table(database, tablename))) {
677 ast_log(LOG_ERROR, "Table '%s' does not exist!!\n", tablename);
678 release_database(dbh);
679 return -1;
680 }
681
682 if (!sql || !buf || !where) {
683 release_database(dbh);
685 return -1;
686 }
687
688 ast_str_set(&sql, 0, "UPDATE %s SET", tablename);
689 ast_str_set(&where, 0, "WHERE");
690
691 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
692 if (!mysql_reconnect(dbh)) {
694 release_database(dbh);
695 return -1;
696 }
697
698 first = 1;
699 for (field = lookup_fields; field; field = field->next) {
700 if (!(column = find_column(table, field->name))) {
701 ast_log(LOG_ERROR, "Updating on column '%s', but that column does not exist within the table '%s'!\n", field->name, tablename);
703 release_database(dbh);
704 return -1;
705 }
706 ESCAPE_STRING(buf, field->value);
707 ast_str_append(&where, 0, "%s `%s` = '%s'", first ? "" : " AND", field->name, ast_str_buffer(buf));
708 first = 0;
709 }
710
711 first = 1;
712 for (field = update_fields; field; field = field->next) {
713 /* If the column is not within the table, then skip it */
714 if (!(column = find_column(table, field->name))) {
715 ast_log(LOG_WARNING, "Attempted to update column '%s' in table '%s', but column does not exist!\n", field->name, tablename);
716 continue;
717 }
718
719 ESCAPE_STRING(buf, field->value);
720 ast_str_append(&sql, 0, "%s `%s` = '%s'", first ? "" : ",", field->name, ast_str_buffer(buf));
721 first = 0;
722 }
723
725
726 ast_str_append(&sql, 0, " %s", ast_str_buffer(where));
727
728 ast_debug(1, "MySQL RealTime: Update SQL: %s\n", ast_str_buffer(sql));
729
730 /* Execution. */
731 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
732 ast_log(LOG_WARNING, "MySQL RealTime: Failed to update database: %s\n", mysql_error(&dbh->handle));
734 release_database(dbh);
735 return -1;
736 }
737
738 numrows = mysql_affected_rows(&dbh->handle);
739 release_database(dbh);
740
741 ast_debug(1, "MySQL RealTime: Updated %" PRIu64 " rows on table: %s\n", numrows, tablename);
742
743 /* From http://dev.mysql.com/doc/mysql/en/mysql-affected-rows.html
744 * An integer greater than zero indicates the number of rows affected
745 * Zero indicates that no records were updated
746 * -1 indicates that the query returned an error (although, if the query failed, it should have been caught above.)
747 */
748
749 return (int)numrows;
750}
751
752static int store_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
753{
754 struct mysql_conn *dbh;
755 struct ast_str *sql = ast_str_thread_get(&sql_buf, 16);
756 struct ast_str *sql2 = ast_str_thread_get(&sql2_buf, 16);
758 const struct ast_variable *field = rt_fields;
759
760 if (!(dbh = find_database(database, 1))) {
761 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: '%s' (check res_mysql.conf)\n", database);
762 return -1;
763 }
764
765 if (!table) {
766 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
767 release_database(dbh);
768 return -1;
769 }
770 /* Get the first parameter and first value in our list of passed paramater/value pairs */
771 if (!field) {
772 ast_log(LOG_WARNING, "MySQL RealTime: Realtime storage requires at least 1 parameter and 1 value to search on.\n");
773 release_database(dbh);
774 return -1;
775 }
776 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
777 if (!mysql_reconnect(dbh)) {
778 release_database(dbh);
779 return -1;
780 }
781 /* Create the first part of the query using the first parameter/value pairs we just extracted
782 If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
783 ESCAPE_STRING(buf, field->value);
784 ast_str_set(&sql, 0, "INSERT INTO %s (`%s`", table, field->name);
785 ast_str_set(&sql2, 0, ") VALUES ('%s'", ast_str_buffer(buf));
786
787 while ((field = field->next)) {
788 ESCAPE_STRING(buf, field->value);
789
790 ast_str_append(&sql, 0, ", `%s`", field->name);
791 ast_str_append(&sql2, 0, ", '%s'", ast_str_buffer(buf));
792 }
793 ast_str_append(&sql, 0, "%s)", ast_str_buffer(sql2));
794 ast_debug(1,"MySQL RealTime: Insert SQL: %s\n", ast_str_buffer(sql));
795
796 /* Execution. */
797 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
798 ast_log(LOG_WARNING, "MySQL RealTime: Failed to insert into database: %s\n", mysql_error(&dbh->handle));
799 release_database(dbh);
800 return -1;
801 }
802
803 release_database(dbh);
804
805 ast_debug(1, "MySQL RealTime: row inserted on table: %s\n", table);
806
807 return 1;
808}
809
810static int destroy_mysql(const char *database, const char *table, const char *keyfield, const char *lookup, const struct ast_variable *rt_fields)
811{
812 struct mysql_conn *dbh;
813 uint64_t numrows;
814 struct ast_str *sql = ast_str_thread_get(&sql_buf, 16);
816 const struct ast_variable *field;
817
818 if (!(dbh = find_database(database, 1))) {
819 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: '%s' (check res_mysql.conf)\n", database);
820 return -1;
821 }
822
823 if (!table) {
824 ast_log(LOG_WARNING, "MySQL RealTime: No table specified.\n");
825 release_database(dbh);
826 return -1;
827 }
828
829 /* Get the first parameter and first value in our list of passed paramater/value pairs */
830 /* newparam = va_arg(ap, const char *);
831 newval = va_arg(ap, const char *);*/
832 if (ast_strlen_zero(keyfield) || ast_strlen_zero(lookup)) {
833 ast_log(LOG_WARNING, "MySQL RealTime: Realtime destroying requires at least 1 parameter and 1 value to search on.\n");
834 release_database(dbh);
835 return -1;
836 }
837
838 /* Must connect to the server before anything else, as the escape function requires the mysql handle. */
839 if (!mysql_reconnect(dbh)) {
840 release_database(dbh);
841 return -1;
842 }
843
844 /* Create the first part of the query using the first parameter/value pairs we just extracted
845 If there is only 1 set, then we have our query. Otherwise, loop thru the list and concat */
846 ESCAPE_STRING(buf, lookup);
847 ast_str_set(&sql, 0, "DELETE FROM %s WHERE `%s` = '%s'", table, keyfield, ast_str_buffer(buf));
848 for (field = rt_fields; field; field = field->next) {
849 ESCAPE_STRING(buf, field->value);
850 ast_str_append(&sql, 0, " AND `%s` = '%s'", field->name, ast_str_buffer(buf));
851 }
852
853 ast_debug(1, "MySQL RealTime: Delete SQL: %s\n", ast_str_buffer(sql));
854
855 /* Execution. */
856 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
857 ast_log(LOG_WARNING, "MySQL RealTime: Failed to delete from database: %s\n", mysql_error(&dbh->handle));
858 release_database(dbh);
859 return -1;
860 }
861
862 numrows = mysql_affected_rows(&dbh->handle);
863 release_database(dbh);
864
865 ast_debug(1, "MySQL RealTime: Deleted %" PRIu64 " rows on table: %s\n", numrows, table);
866
867 /* From http://dev.mysql.com/doc/mysql/en/mysql-affected-rows.html
868 * An integer greater than zero indicates the number of rows affected
869 * Zero indicates that no records were updated
870 * -1 indicates that the query returned an error (although, if the query failed, it should have been caught above.)
871 */
872
873 return (int)numrows;
874}
875
876static struct ast_config *config_mysql(const char *database, const char *table, const char *file, struct ast_config *cfg, struct ast_flags config_flags, const char *unused, const char *who_asked)
877{
878 struct mysql_conn *dbh;
879 MYSQL_RES *result;
880 MYSQL_ROW row;
881 uint64_t num_rows;
882 struct ast_variable *new_v;
883 struct ast_category *cur_cat = NULL;
884 struct ast_str *sql = ast_str_thread_get(&sql_buf, 200);
885 char last[80] = "";
886 int last_cat_metric = 0;
887
889
890 if (!file || !strcmp(file, RES_CONFIG_MYSQL_CONF)) {
891 ast_log(LOG_WARNING, "MySQL RealTime: Cannot configure myself.\n");
892 return NULL;
893 }
894
895 if (!(dbh = find_database(database, 0))) {
896 ast_log(LOG_WARNING, "MySQL RealTime: Invalid database specified: '%s' (check res_mysql.conf)\n", database);
897 return NULL;
898 }
899
900 ast_str_set(&sql, 0, "SELECT category, var_name, var_val, cat_metric FROM %s WHERE filename='%s' and commented=0 ORDER BY filename, category, cat_metric desc, var_metric asc, var_name, var_val, id", table, file);
901
902 ast_debug(1, "MySQL RealTime: Static SQL: %s\n", ast_str_buffer(sql));
903
904 /* We now have our complete statement; Lets connect to the server and execute it. */
905 if (!mysql_reconnect(dbh)) {
906 return NULL;
907 }
908
909 if (mysql_real_query(&dbh->handle, ast_str_buffer(sql), ast_str_strlen(sql))) {
910 ast_log(LOG_WARNING, "MySQL RealTime: Failed to query database. Check debug for more info.\n");
911 ast_debug(1, "MySQL RealTime: Query: %s\n", ast_str_buffer(sql));
912 ast_debug(1, "MySQL RealTime: Query Failed because: %s\n", mysql_error(&dbh->handle));
913 release_database(dbh);
914 return NULL;
915 }
916
917 if ((result = mysql_store_result(&dbh->handle))) {
918 num_rows = mysql_num_rows(result);
919 ast_debug(1, "MySQL RealTime: Found %" PRIu64 " rows.\n", num_rows);
920
921 /* There might exist a better way to access the column names other than counting,
922 * but I believe that would require another loop that we don't need. */
923
924 while ((row = mysql_fetch_row(result))) {
925 if (!strcmp(row[1], "#include")) {
926 if (!ast_config_internal_load(row[2], cfg, config_flags, "", who_asked)) {
927 mysql_free_result(result);
928 release_database(dbh);
929 return NULL;
930 }
931 continue;
932 }
933
934 if (strcmp(last, row[0]) || last_cat_metric != atoi(row[3])) {
935 cur_cat = ast_category_new_dynamic(row[0]);
936 if (!cur_cat) {
937 break;
938 }
939 strcpy(last, row[0]);
940 last_cat_metric = atoi(row[3]);
941 ast_category_append(cfg, cur_cat);
942 }
943 new_v = ast_variable_new(row[1], row[2], "");
944 if (cur_cat)
945 ast_variable_append(cur_cat, new_v);
946 }
947 } else {
948 ast_log(LOG_WARNING, "MySQL RealTime: Could not find config '%s' in database.\n", file);
949 }
950
951 mysql_free_result(result);
952 release_database(dbh);
953
954 return cfg;
955}
956
957static int unload_mysql(const char *database, const char *tablename)
958{
959 struct tables *cur;
962 if (strcmp(cur->name, tablename) == 0) {
964 destroy_table(cur);
965 break;
966 }
967 }
970 return cur ? 0 : -1;
971}
972
973static int require_mysql(const char *database, const char *tablename, va_list ap)
974{
975 struct columns *column;
976 struct tables *table = find_table(database, tablename);
977 char *elm;
978 int type;
979 int size;
980 int res = 0;
981
982 if (!table) {
983 ast_log(LOG_WARNING, "Table %s not found in database. This table should exist if you're using realtime.\n", tablename);
984 return -1;
985 }
986
987 while ((elm = va_arg(ap, char *))) {
988 type = va_arg(ap, require_type);
989 size = va_arg(ap, int);
990
991 AST_LIST_TRAVERSE(&table->columns, column, list) {
992 if (strcmp(column->name, elm) == 0) {
993 /* Char can hold anything, as long as it is large enough */
994 if (strncmp(column->type, "char", 4) == 0 || strncmp(column->type, "varchar", 7) == 0) {
995 if ((size > column->len) && column->len != -1) {
996 ast_log(LOG_WARNING, "Realtime table %s@%s: Column '%s' should be at least %d long, but is only %d long.\n", database, tablename, column->name, size, column->len);
997 res = -1;
998 }
999 } else if (strcasestr(column->type, "unsigned")) {
1000 if (!ast_rq_is_int(type)) {
1001 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' cannot be type '%s' (need %s)\n",
1002 database, tablename, column->name, column->type,
1003 type == RQ_CHAR ? "char" : type == RQ_FLOAT ? "float" :
1004 type == RQ_DATETIME ? "datetime" : type == RQ_DATE ? "date" : "a rather stiff drink");
1005 res = -1;
1006 } else if (strncasecmp(column->type, "tinyint", 1) == 0) {
1007 if (type != RQ_UINTEGER1) {
1008 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1009 "the required data length: %d (detected stringtype)\n", \
1010 tablename, database, column->name, size); \
1011 res = -1; \
1012 }
1013 } else if (strncasecmp(column->type, "smallint", 1) == 0) {
1014 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 && type != RQ_UINTEGER2) {
1015 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1016 "the required data length: %d (detected stringtype)\n", \
1017 tablename, database, column->name, size); \
1018 res = -1; \
1019 }
1020 } else if (strncasecmp(column->type, "mediumint", 1) == 0) {
1021 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1022 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1023 type != RQ_UINTEGER3) {
1024 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1025 "the required data length: %d (detected stringtype)\n", \
1026 tablename, database, column->name, size); \
1027 res = -1; \
1028 }
1029 } else if (strncasecmp(column->type, "int", 1) == 0) {
1030 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1031 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1032 type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
1033 type != RQ_UINTEGER4) {
1034 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1035 "the required data length: %d (detected stringtype)\n", \
1036 tablename, database, column->name, size); \
1037 res = -1; \
1038 }
1039 } else if (strncasecmp(column->type, "bigint", 1) == 0) {
1040 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1041 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1042 type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
1043 type != RQ_UINTEGER4 && type != RQ_INTEGER4 &&
1044 type != RQ_UINTEGER8) {
1045 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1046 "the required data length: %d (detected stringtype)\n", \
1047 tablename, database, column->name, size); \
1048 res = -1; \
1049 }
1050 }
1051 } else if (strcasestr(column->type, "int")) {
1052 if (!ast_rq_is_int(type)) {
1053 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' cannot be type '%s' (need %s)\n",
1054 database, tablename, column->name, column->type,
1055 type == RQ_CHAR ? "char" : type == RQ_FLOAT ? "float" :
1056 type == RQ_DATETIME ? "datetime" : type == RQ_DATE ? "date" :
1057 "to get a life, rather than writing silly error messages");
1058 res = -1;
1059 } else if (strncasecmp(column->type, "tinyint", 1) == 0) {
1060 if (type != RQ_INTEGER1) {
1061 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1062 "the required data length: %d (detected stringtype)\n", \
1063 tablename, database, column->name, size); \
1064 res = -1; \
1065 }
1066 } else if (strncasecmp(column->type, "smallint", 1) == 0) {
1067 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 && type != RQ_INTEGER2) {
1068 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1069 "the required data length: %d (detected stringtype)\n", \
1070 tablename, database, column->name, size); \
1071 res = -1; \
1072 }
1073 } else if (strncasecmp(column->type, "mediumint", 1) == 0) {
1074 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1075 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1076 type != RQ_INTEGER3) {
1077 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1078 "the required data length: %d (detected stringtype)\n", \
1079 tablename, database, column->name, size); \
1080 res = -1; \
1081 }
1082 } else if (strncasecmp(column->type, "int", 1) == 0) {
1083 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1084 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1085 type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
1086 type != RQ_INTEGER4) {
1087 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1088 "the required data length: %d (detected stringtype)\n", \
1089 tablename, database, column->name, size); \
1090 res = -1; \
1091 }
1092 } else if (strncasecmp(column->type, "bigint", 1) == 0) {
1093 if (type != RQ_UINTEGER1 && type != RQ_INTEGER1 &&
1094 type != RQ_UINTEGER2 && type != RQ_INTEGER2 &&
1095 type != RQ_UINTEGER3 && type != RQ_INTEGER3 &&
1096 type != RQ_UINTEGER4 && type != RQ_INTEGER4 &&
1097 type != RQ_INTEGER8) {
1098 ast_log(LOG_WARNING, "Realtime table %s@%s: column '%s' may not be large enough for " \
1099 "the required data length: %d (detected stringtype)\n", \
1100 tablename, database, column->name, size); \
1101 res = -1; \
1102 }
1103 }
1104 } else if (strncmp(column->type, "float", 5) == 0) {
1105 if (!ast_rq_is_int(type) && type != RQ_FLOAT) {
1106 ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
1107 res = -1;
1108 }
1109 } else if (strncmp(column->type, "datetime", 8) == 0 || strncmp(column->type, "timestamp", 9) == 0) {
1110 if (type != RQ_DATETIME) {
1111 ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
1112 res = -1;
1113 }
1114 } else if (strncmp(column->type, "date", 4) == 0) {
1115 if (type != RQ_DATE) {
1116 ast_log(LOG_WARNING, "Realtime table %s@%s: Column %s cannot be a %s\n", tablename, database, column->name, column->type);
1117 res = -1;
1118 }
1119 } else { /* Other, possibly unsupported types? */
1120 ast_log(LOG_WARNING, "Possibly unsupported column type '%s' on column '%s'\n", column->type, column->name);
1121 res = -1;
1122 }
1123 break;
1124 }
1125 }
1126
1127 if (!column) {
1128 ast_log(LOG_WARNING, "Table %s requires a column '%s' of size '%d', but no such column exists.\n", tablename, elm, size);
1129 }
1130 }
1132
1133 return res;
1134}
1135
1137 .name = "mysql",
1138 .load_func = config_mysql,
1139 .realtime_func = realtime_mysql,
1140 .realtime_multi_func = realtime_multi_mysql,
1141 .store_func = store_mysql,
1142 .destroy_func = destroy_mysql,
1143 .update_func = update_mysql,
1144 .update2_func = update2_mysql,
1145 .require_func = require_mysql,
1146 .unload_func = unload_mysql,
1147};
1148
1149static int load_module(void)
1150{
1151 parse_config(0);
1152
1154 ast_verb(2, "MySQL RealTime driver loaded.\n");
1156 return 0;
1157}
1158
1159static int unload_module(void)
1160{
1161 struct mysql_conn *cur;
1162 struct tables *table;
1163
1166 ast_verb(2, "MySQL RealTime unloaded.\n");
1167
1169 while ((cur = AST_RWLIST_REMOVE_HEAD(&databases, list))) {
1170 mysql_close(&cur->handle);
1171 ast_mutex_destroy(&cur->lock);
1172 ast_free(cur);
1173 }
1175
1176 /* Destroy cached table info */
1180 }
1182
1183 return 0;
1184}
1185
1186static int reload(void)
1187{
1188 parse_config(1);
1189 ast_verb(2, "MySQL RealTime reloaded.\n");
1190 return 0;
1191}
1192
1193static int parse_config(int reload)
1194{
1195 struct ast_config *config = NULL;
1196 struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
1197 const char *catg;
1198 struct mysql_conn *cur;
1199
1201 /* Support old config file name */
1203 }
1204
1206 return 0;
1207 } else if (config == CONFIG_STATUS_FILEUNCHANGED) {
1208 return 0;
1209 } else if (config == CONFIG_STATUS_FILEINVALID) {
1210 ast_log(LOG_ERROR, "Not %sloading " RES_CONFIG_MYSQL_CONF "\n", reload ? "re" : "");
1211 }
1212
1214 for (catg = ast_category_browse(config, NULL); catg; catg = ast_category_browse(config, catg)) {
1215 /* Does this category already exist? */
1216 AST_RWLIST_TRAVERSE(&databases, cur, list) {
1217 if (!strcmp(cur->unique_name, catg)) {
1218 break;
1219 }
1220 }
1221
1222 if (!cur) {
1223 if (!(cur = ast_calloc(1, sizeof(*cur) + strlen(catg) + 1))) {
1224 ast_log(LOG_WARNING, "Could not allocate space for MySQL database '%s'\n", catg);
1225 continue;
1226 }
1227
1228 strcpy(cur->unique_name, catg); /* SAFE */
1229 ast_mutex_init(&cur->lock);
1230 AST_RWLIST_INSERT_TAIL(&databases, cur, list);
1231 }
1232
1233 load_mysql_config(config, catg, cur);
1234 }
1236
1238
1239 return 0;
1240}
1241
1242static int load_mysql_config(struct ast_config *config, const char *category, struct mysql_conn *conn)
1243{
1244 const char *s;
1245
1246 if (!(s = ast_variable_retrieve(config, category, "dbuser"))) {
1247 ast_log(LOG_WARNING, "MySQL RealTime: No database user found, using 'asterisk' as default.\n");
1248 s = "asterisk";
1249 }
1250 ast_copy_string(conn->user, s, sizeof(conn->user));
1251
1252 if (!(s = ast_variable_retrieve(config, category, "dbpass"))) {
1253 ast_log(LOG_WARNING, "MySQL RealTime: No database password found, using 'asterisk' as default.\n");
1254 s = "asterisk";
1255 }
1256 ast_copy_string(conn->pass, s, sizeof(conn->pass));
1257
1258 if (!(s = ast_variable_retrieve(config, category, "dbhost"))) {
1259 ast_log(LOG_WARNING, "MySQL RealTime: No database host found, using localhost via socket.\n");
1260 s = "";
1261 }
1262 ast_copy_string(conn->host, s, sizeof(conn->host));
1263
1264 if (!(s = ast_variable_retrieve(config, category, "dbname"))) {
1265 ast_log(LOG_WARNING, "MySQL RealTime: No database name found, using 'asterisk' as default.\n");
1266 s = "asterisk";
1267 }
1268 ast_copy_string(conn->name, s, sizeof(conn->name));
1269
1270 if (!(s = ast_variable_retrieve(config, category, "dbport"))) {
1271 ast_log(LOG_WARNING, "MySQL RealTime: No database port found, using 3306 as default.\n");
1272 conn->port = 3306;
1273 } else
1274 conn->port = atoi(s);
1275
1276 if (!(s = ast_variable_retrieve(config, category, "dbsock"))) {
1277 if (ast_strlen_zero(conn->host)) {
1278 char *paths[3] = { "/tmp/mysql.sock", "/var/lib/mysql/mysql.sock", "/var/run/mysqld/mysqld.sock" };
1279 struct stat st;
1280 int i;
1281 for (i = 0; i < 3; i++) {
1282 if (!stat(paths[i], &st)) {
1283 ast_log(LOG_WARNING, "MySQL RealTime: No database socket found, using '%s' as default.\n", paths[i]);
1284 ast_copy_string(conn->sock, paths[i], sizeof(conn->sock));
1285 }
1286 }
1287 if (i == 3) {
1288 ast_log(LOG_WARNING, "MySQL RealTime: No database socket found (and unable to detect a suitable path).\n");
1289 return 0;
1290 }
1291 }
1292 } else
1293 ast_copy_string(conn->sock, s, sizeof(conn->sock));
1294
1295 if ((s = ast_variable_retrieve(config, category, "dbcharset"))) {
1296 ast_copy_string(conn->charset, s, sizeof(conn->charset));
1297 }
1298
1299 if (!(s = ast_variable_retrieve(config, category, "requirements"))) {
1300 ast_log(LOG_WARNING, "MySQL realtime: no requirements setting found, using 'warn' as default.\n");
1301 conn->requirements = RQ_WARN;
1302 } else if (!strcasecmp(s, "createclose")) {
1303 conn->requirements = RQ_CREATECLOSE;
1304 } else if (!strcasecmp(s, "createchar")) {
1305 conn->requirements = RQ_CREATECHAR;
1306 } else if (!strcasecmp(s, "warn")) {
1307 conn->requirements = RQ_WARN;
1308 } else {
1309 ast_log(LOG_WARNING, "MySQL realtime: unrecognized requirements setting '%s', using 'warn'\n", s);
1310 conn->requirements = RQ_WARN;
1311 }
1312
1313 if (!ast_strlen_zero(conn->host)) {
1314 ast_debug(1, "MySQL RealTime host: %s\n", conn->host);
1315 ast_debug(1, "MySQL RealTime port: %i\n", conn->port);
1316 } else
1317 ast_debug(1, "MySQL RealTime socket: %s\n", conn->sock);
1318 ast_debug(1, "MySQL RealTime database name: %s\n", conn->name);
1319 ast_debug(1, "MySQL RealTime user: %s\n", conn->user);
1320 ast_debug(1, "MySQL RealTime password: %s\n", conn->pass);
1321 if(!ast_strlen_zero(conn->charset))
1322 ast_debug(1, "MySQL RealTime charset: %s\n", conn->charset);
1323
1324 return 1;
1325}
1326
1328{
1329#ifdef MYSQL_OPT_RECONNECT
1330 my_bool trueval = 1;
1331#endif
1332
1333 /* mutex lock should have been locked before calling this function. */
1334
1335reconnect_tryagain:
1336 if ((!conn->connected) && (!ast_strlen_zero(conn->host) || !ast_strlen_zero(conn->sock)) && !ast_strlen_zero(conn->user) && !ast_strlen_zero(conn->name)) {
1337 if (!mysql_init(&conn->handle)) {
1338 ast_log(LOG_WARNING, "MySQL RealTime: Insufficient memory to allocate MySQL resource.\n");
1339 conn->connected = 0;
1340 return 0;
1341 }
1342 if(strlen(conn->charset) > 2){
1343 char set_names[255];
1344 char statement[512];
1345 snprintf(set_names, sizeof(set_names), "SET NAMES %s", conn->charset);
1346 mysql_real_escape_string(&conn->handle, statement, set_names, sizeof(set_names));
1347 mysql_options(&conn->handle, MYSQL_INIT_COMMAND, set_names);
1348 mysql_options(&conn->handle, MYSQL_SET_CHARSET_NAME, conn->charset);
1349 }
1350
1351 if (mysql_real_connect(&conn->handle, conn->host, conn->user, conn->pass, conn->name, conn->port, conn->sock, 0)) {
1352#ifdef MYSQL_OPT_RECONNECT
1353 /* The default is no longer to automatically reconnect on failure,
1354 * (as of 5.0.3) so we have to set that option here. */
1355 mysql_options(&conn->handle, MYSQL_OPT_RECONNECT, &trueval);
1356#endif
1357 ast_debug(1, "MySQL RealTime: Successfully connected to database.\n");
1358 conn->connected = 1;
1359 conn->connect_time = time(NULL);
1360 return 1;
1361 } else {
1362 ast_log(LOG_ERROR, "MySQL RealTime: Failed to connect database server %s on %s (err %d). Check debug for more info.\n", conn->name, !ast_strlen_zero(conn->host) ? conn->host : conn->sock, mysql_errno(&conn->handle));
1363 ast_debug(1, "MySQL RealTime: Cannot Connect (%d): %s\n", mysql_errno(&conn->handle), mysql_error(&conn->handle));
1364 conn->connected = 0;
1365 conn->connect_time = 0;
1366 return 0;
1367 }
1368 } else {
1369 /* MySQL likes to return an error, even if it reconnects successfully.
1370 * So the postman pings twice. */
1371 if (mysql_ping(&conn->handle) != 0 && (usleep(1) + 2 > 0) && mysql_ping(&conn->handle) != 0) {
1372 conn->connected = 0;
1373 conn->connect_time = 0;
1374 ast_log(LOG_ERROR, "MySQL RealTime: Ping failed (%d). Trying an explicit reconnect.\n", mysql_errno(&conn->handle));
1375 ast_debug(1, "MySQL RealTime: Server Error (%d): %s\n", mysql_errno(&conn->handle), mysql_error(&conn->handle));
1376 goto reconnect_tryagain;
1377 }
1378
1379 if (!conn->connected) {
1380 conn->connected = 1;
1381 conn->connect_time = time(NULL);
1382 }
1383
1384 if (mysql_select_db(&conn->handle, conn->name) != 0) {
1385 ast_log(LOG_WARNING, "MySQL RealTime: Unable to select database: %s. Still Connected (%u) - %s.\n", conn->name, mysql_errno(&conn->handle), mysql_error(&conn->handle));
1386 return 0;
1387 }
1388
1389 ast_debug(1, "MySQL RealTime: Connection okay.\n");
1390 return 1;
1391 }
1392}
1393
1394static char *handle_cli_realtime_mysql_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1395{
1396 struct tables *cur;
1397 int l, which;
1398 char *ret = NULL;
1399
1400 switch (cmd) {
1401 case CLI_INIT:
1402 e->command = "realtime mysql cache";
1403 e->usage =
1404 "Usage: realtime mysql cache [<database> <table>]\n"
1405 " Shows table cache for the MySQL RealTime driver\n";
1406 return NULL;
1407 case CLI_GENERATE:
1408 if (a->argc < 4 || a->argc > 5) {
1409 return NULL;
1410 }
1411 l = strlen(a->word);
1412 which = 0;
1413 if (a->argc == 5) {
1416 if (!strcasecmp(a->argv[3], cur->database->unique_name) && !strncasecmp(a->word, cur->name, l) && ++which > a->n) {
1417 ret = ast_strdup(cur->name);
1418 break;
1419 }
1420 }
1422 } else {
1423 struct mysql_conn *cur;
1425 AST_RWLIST_TRAVERSE(&databases, cur, list) {
1426 if (!strncasecmp(a->word, cur->unique_name, l) && ++which > a->n) {
1427 ret = ast_strdup(cur->unique_name);
1428 break;
1429 }
1430 }
1432 }
1433 return ret;
1434 }
1435
1436 if (a->argc == 3) {
1437 /* List of tables */
1439 AST_LIST_TRAVERSE(&mysql_tables, cur, list) {
1440 ast_cli(a->fd, "%20.20s %s\n", cur->database->unique_name, cur->name);
1441 }
1443 } else if (a->argc == 4) {
1444 int found = 0;
1445 /* List of tables */
1447 AST_LIST_TRAVERSE(&mysql_tables, cur, list) {
1448 if (!strcasecmp(cur->database->unique_name, a->argv[3])) {
1449 ast_cli(a->fd, "%s\n", cur->name);
1450 found = 1;
1451 }
1452 }
1454 if (!found) {
1455 ast_cli(a->fd, "No tables cached within %s database\n", a->argv[3]);
1456 }
1457 } else if (a->argc == 5) {
1458 /* List of columns */
1459 if ((cur = find_table(a->argv[3], a->argv[4]))) {
1460 struct columns *col;
1461 ast_cli(a->fd, "Columns for Table Cache '%s':\n", a->argv[3]);
1462 ast_cli(a->fd, "%-20.20s %-20.20s %-3.3s\n", "Name", "Type", "Len");
1463 AST_LIST_TRAVERSE(&cur->columns, col, list) {
1464 ast_cli(a->fd, "%-20.20s %-20.20s %3d\n", col->name, col->type, col->len);
1465 }
1466 release_table(cur);
1467 } else {
1468 ast_cli(a->fd, "No such table '%s'\n", a->argv[3]);
1469 }
1470 }
1471 return CLI_SUCCESS;
1472}
1473
1474static char *handle_cli_realtime_mysql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
1475{
1476 char status[256], status2[100] = "", type[20];
1477 char *ret = NULL;
1478 int ctime = 0, found = 0;
1479 struct mysql_conn *cur;
1480 int l = 0, which = 0;
1481
1482 switch (cmd) {
1483 case CLI_INIT:
1484 e->command = "realtime mysql status";
1485 e->usage =
1486 "Usage: realtime mysql status [<database>]\n"
1487 " Shows connection information for the MySQL RealTime driver\n";
1488 return NULL;
1489 case CLI_GENERATE:
1490 if (a->argc == 4) {
1492 AST_RWLIST_TRAVERSE(&databases, cur, list) {
1493 if (!strncasecmp(a->word, cur->unique_name, l) && ++which > a->n) {
1494 ret = ast_strdup(cur->unique_name);
1495 break;
1496 }
1497 }
1499 }
1500 return ret;
1501 }
1502
1503 if (a->argc != 3)
1504 return CLI_SHOWUSAGE;
1505
1507 AST_RWLIST_TRAVERSE(&databases, cur, list) {
1508 if (a->argc == 3 || (a->argc == 4 && !strcasecmp(a->argv[3], cur->unique_name))) {
1509 found = 1;
1510
1511 if (mysql_reconnect(cur)) {
1512 snprintf(type, sizeof(type), "connected to");
1513 ctime = time(NULL) - cur->connect_time;
1514 } else {
1515 snprintf(type, sizeof(type), "configured for");
1516 ctime = -1;
1517 }
1518
1519 if (!ast_strlen_zero(cur->host)) {
1520 snprintf(status, sizeof(status), "%s %s %s@%s, port %d", cur->unique_name, type, cur->name, cur->host, cur->port);
1521 } else {
1522 snprintf(status, sizeof(status), "%s %s %s on socket file %s", cur->unique_name, type, cur->name, cur->sock);
1523 }
1524
1525 if (!ast_strlen_zero(cur->user)) {
1526 snprintf(status2, sizeof(status2), " with username %s", cur->user);
1527 } else {
1528 status2[0] = '\0';
1529 }
1530
1531 if (ctime > 31536000) {
1532 ast_cli(a->fd, "%s%s for %.1f years.\n", status, status2, (double)ctime / 31536000.0);
1533 } else if (ctime > 86400 * 30) {
1534 ast_cli(a->fd, "%s%s for %d days.\n", status, status2, ctime / 86400);
1535 } else if (ctime > 86400) {
1536 ast_cli(a->fd, "%s%s for %d days, %d hours.\n", status, status2, ctime / 86400, (ctime % 86400) / 3600);
1537 } else if (ctime > 3600) {
1538 ast_cli(a->fd, "%s%s for %d hours, %d minutes.\n", status, status2, ctime / 3600, (ctime % 3600) / 60);
1539 } else if (ctime > 60) {
1540 ast_cli(a->fd, "%s%s for %d minutes.\n", status, status2, ctime / 60);
1541 } else if (ctime > -1) {
1542 ast_cli(a->fd, "%s%s for %d seconds.\n", status, status2, ctime);
1543 } else {
1544 ast_cli(a->fd, "%s%s.\n", status, status2);
1545 }
1546 }
1547 }
1549
1550 if (!found) {
1551 ast_cli(a->fd, "No connections configured.\n");
1552 }
1553 return CLI_SUCCESS;
1554}
1555
1556AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "MySQL RealTime Configuration Driver",
1557 .support_level = AST_MODULE_SUPPORT_EXTENDED,
1558 .load = load_module,
1559 .unload = unload_module,
1560 .reload = reload,
1561 .load_pri = AST_MODPRI_REALTIME_DRIVER,
1562 .requires = "extconfig",
jack_status_t status
Definition: app_jack.c:146
struct sla_ringing_trunk * first
Definition: app_sla.c:332
ast_mutex_t lock
Definition: app_sla.c:331
struct sla_ringing_trunk * last
Definition: app_sla.c:332
#define var
Definition: ast_expr2f.c:605
Asterisk main include file. File version handling, generic pbx functions.
#define ast_alloca(size)
call __builtin_alloca to ensure we get gcc builtin semantics
Definition: astmm.h:288
#define ast_free(a)
Definition: astmm.h:180
#define ast_strdup(str)
A wrapper for strdup()
Definition: astmm.h:241
#define ast_strdupa(s)
duplicate a string in memory from the stack
Definition: astmm.h:298
#define ast_calloc(num, len)
A wrapper for calloc()
Definition: astmm.h:202
#define ast_log
Definition: astobj2.c:42
static char * table
Definition: cdr_odbc.c:55
static time_t connect_time
Definition: cdr_pgsql.c:76
static PGconn * conn
Definition: cdr_pgsql.c:87
static PGresult * result
Definition: cel_pgsql.c:84
static const char type[]
Definition: chan_ooh323.c:109
static const char config[]
Definition: chan_ooh323.c:111
charset
Definition: chan_unistim.c:336
General Asterisk PBX channel definitions.
Standard Command Line Interface.
#define CLI_SHOWUSAGE
Definition: cli.h:45
#define CLI_SUCCESS
Definition: cli.h:44
int ast_cli_unregister_multiple(struct ast_cli_entry *e, int len)
Unregister multiple commands.
Definition: clicompat.c:30
#define AST_CLI_DEFINE(fn, txt,...)
Definition: cli.h:197
void ast_cli(int fd, const char *fmt,...)
Definition: clicompat.c:6
@ CLI_INIT
Definition: cli.h:152
@ CLI_GENERATE
Definition: cli.h:153
#define ast_cli_register_multiple(e, len)
Register multiple commands.
Definition: cli.h:265
char connected
Definition: eagi_proxy.c:82
char buf[BUFSIZE]
Definition: eagi_proxy.c:66
static const char name[]
Definition: format_mp3.c:68
char * strsep(char **str, const char *delims)
char * strcasestr(const char *, const char *)
Configuration File Parser.
#define ast_config_load(filename, flags)
Load a config file.
char * ast_category_browse(struct ast_config *config, const char *prev_name)
Browse categories.
Definition: extconf.c:3326
void ast_category_rename(struct ast_category *cat, const char *name)
Definition: main/config.c:1451
#define CONFIG_STATUS_FILEMISSING
struct ast_config * ast_config_new(void)
Create a new base configuration structure.
Definition: extconf.c:3274
void ast_category_append(struct ast_config *config, struct ast_category *category)
Appends a category to a config.
Definition: extconf.c:2833
void ast_variable_append(struct ast_category *category, struct ast_variable *variable)
Definition: extconf.c:1177
#define ast_category_new_anonymous()
Create a nameless category that is not backed by a file.
#define ast_variable_new(name, value, filename)
int ast_config_engine_deregister(struct ast_config_engine *del)
Deregister config engine.
Definition: main/config.c:3173
#define CONFIG_STATUS_FILEUNCHANGED
#define CONFIG_STATUS_FILEINVALID
void ast_config_destroy(struct ast_config *cfg)
Destroys a config.
Definition: extconf.c:1289
int ast_rq_is_int(require_type type)
Check if require type is an integer type.
const char * ast_variable_retrieve(struct ast_config *config, const char *category, const char *variable)
Definition: main/config.c:783
require_type
Types used in ast_realtime_require_field.
struct ast_config * ast_config_internal_load(const char *configfile, struct ast_config *cfg, struct ast_flags flags, const char *suggested_incl_file, const char *who_asked)
Definition: main/config.c:3279
#define ast_category_new_dynamic(name)
Create a category that is not backed by a file.
int ast_config_engine_register(struct ast_config_engine *newconfig)
Register config engine.
Definition: main/config.c:3157
@ CONFIG_FLAG_FILEUNCHANGED
Support for logging to various files, console and syslog Configuration in file logger....
#define ast_debug(level,...)
Log a DEBUG message.
#define LOG_ERROR
#define ast_verb(level,...)
#define LOG_WARNING
#define AST_RWLIST_RDLOCK(head)
Read locks a list.
Definition: linkedlists.h:78
#define AST_LIST_HEAD_INIT_NOLOCK(head)
Initializes a list head structure.
Definition: linkedlists.h:681
#define AST_LIST_HEAD_STATIC(name, type)
Defines a structure to be used to hold a list of specified type, statically initialized.
Definition: linkedlists.h:291
#define AST_LIST_HEAD_NOLOCK(name, type)
Defines a structure to be used to hold a list of specified type (with no lock).
Definition: linkedlists.h:225
#define AST_RWLIST_WRLOCK(head)
Write locks a list.
Definition: linkedlists.h:52
#define AST_RWLIST_UNLOCK(head)
Attempts to unlock a read/write based list.
Definition: linkedlists.h:151
#define AST_LIST_TRAVERSE(head, var, field)
Loops over (traverses) the entries in a list.
Definition: linkedlists.h:491
#define AST_RWLIST_HEAD_STATIC(name, type)
Defines a structure to be used to hold a read/write list of specified type, statically initialized.
Definition: linkedlists.h:333
#define AST_RWLIST_REMOVE_HEAD
Definition: linkedlists.h:844
#define AST_LIST_INSERT_TAIL(head, elm, field)
Appends a list entry to the tail of a list.
Definition: linkedlists.h:731
#define AST_LIST_ENTRY(type)
Declare a forward link structure inside a list entry.
Definition: linkedlists.h:410
#define AST_LIST_TRAVERSE_SAFE_END
Closes a safe loop traversal block.
Definition: linkedlists.h:615
#define AST_LIST_LOCK(head)
Locks a list.
Definition: linkedlists.h:40
#define AST_RWLIST_TRAVERSE
Definition: linkedlists.h:494
#define AST_LIST_TRAVERSE_SAFE_BEGIN(head, var, field)
Loops safely over (traverses) the entries in a list.
Definition: linkedlists.h:529
#define AST_LIST_REMOVE_CURRENT(field)
Removes the current entry from a list during a traversal.
Definition: linkedlists.h:557
#define AST_RWLIST_INSERT_TAIL
Definition: linkedlists.h:741
#define AST_LIST_REMOVE_HEAD(head, field)
Removes and returns the head entry from a list.
Definition: linkedlists.h:833
#define AST_LIST_UNLOCK(head)
Attempts to unlock a list.
Definition: linkedlists.h:140
#define AST_RWLIST_ENTRY
Definition: linkedlists.h:415
Asterisk locking-related definitions:
#define ast_mutex_init(pmutex)
Definition: lock.h:186
#define ast_mutex_unlock(a)
Definition: lock.h:190
#define ast_mutex_destroy(a)
Definition: lock.h:188
#define ast_mutex_lock(a)
Definition: lock.h:189
Asterisk module definitions.
@ AST_MODFLAG_LOAD_ORDER
Definition: module.h:317
#define AST_MODULE_INFO(keystr, flags_to_set, desc, fields...)
Definition: module.h:543
@ AST_MODPRI_REALTIME_DRIVER
Definition: module.h:323
@ AST_MODULE_SUPPORT_EXTENDED
Definition: module.h:122
#define ASTERISK_GPL_KEY
The text the key() function should return.
Definition: module.h:46
#define MAXHOSTNAMELEN
Definition: network.h:69
Options provided by main asterisk program.
static char pass[512]
static struct ast_threadstorage modify3_buf
static int parse_config(int reload)
static struct ast_config_engine mysql_engine
#define ESCAPE_STRING(buf, var)
static struct ast_threadstorage find_buf
static struct tables * find_table(const char *database, const char *tablename)
static struct ast_cli_entry cli_realtime_mysql_status[]
static void destroy_table(struct tables *table)
static int destroy_mysql(const char *database, const char *table, const char *keyfield, const char *lookup, const struct ast_variable *rt_fields)
static struct ast_threadstorage sql2_buf
static int load_mysql_config(struct ast_config *config, const char *category, struct mysql_conn *conn)
static struct columns * find_column(struct tables *table, const char *colname)
static struct ast_variable * realtime_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
#define RES_CONFIG_MYSQL_CONF_OLD
#define RES_CONFIG_MYSQL_CONF
static char * ESCAPE_CLAUSE
#define IS_SQL_LIKE_CLAUSE(x)
static char * handle_cli_realtime_mysql_cache(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static char * handle_cli_realtime_mysql_status(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static void release_table(struct tables *table)
static int update2_mysql(const char *database, const char *tablename, const struct ast_variable *lookup_fields, const struct ast_variable *update_fields)
static struct mysql_conn * find_database(const char *database, int for_write)
static int mysql_reconnect(struct mysql_conn *conn)
static struct ast_config * realtime_multi_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
static struct ast_threadstorage scratch2_buf
requirements
@ RQ_CREATECHAR
@ RQ_WARN
@ RQ_CREATECLOSE
static int store_mysql(const char *database, const char *table, const struct ast_variable *rt_fields)
static struct ast_threadstorage modify_buf
static struct ast_config * config_mysql(const char *database, const char *table, const char *file, struct ast_config *cfg, struct ast_flags config_flags, const char *unused, const char *who_asked)
static int load_module(void)
#define release_database(a)
static struct ast_threadstorage scratch_buf
static int unload_module(void)
static int reload(void)
static int require_mysql(const char *database, const char *tablename, va_list ap)
static int update_mysql(const char *database, const char *tablename, const char *keyfield, const char *lookup, const struct ast_variable *rt_fields)
static int unload_mysql(const char *database, const char *tablename)
static struct ast_threadstorage modify2_buf
static char * decode_chunk(char *chunk)
static struct ast_threadstorage sql_buf
#define NULL
Definition: resample.c:96
String manipulation functions.
int ast_str_append(struct ast_str **buf, ssize_t max_len, const char *fmt,...)
Append to a thread local dynamic string.
Definition: strings.h:1139
char * ast_str_buffer(const struct ast_str *buf)
Returns the string buffer within the ast_str buf.
Definition: strings.h:761
static force_inline int attribute_pure ast_strlen_zero(const char *s)
Definition: strings.h:65
int ast_str_set(struct ast_str **buf, ssize_t max_len, const char *fmt,...)
Set a dynamic string using variable arguments.
Definition: strings.h:1113
size_t ast_str_strlen(const struct ast_str *buf)
Returns the current length of the string stored within buf.
Definition: strings.h:730
void ast_copy_string(char *dst, const char *src, size_t size)
Size-limited null-terminating string copy.
Definition: strings.h:425
char * ast_strip(char *s)
Strip leading/trailing whitespace from a string.
Definition: strings.h:223
struct ast_str * ast_str_thread_get(struct ast_threadstorage *ts, size_t init_len)
Retrieve a thread locally stored dynamic string.
Definition: strings.h:909
descriptor for a cli entry.
Definition: cli.h:171
char * command
Definition: cli.h:186
const char * usage
Definition: cli.h:177
Configuration engine structure, used to define realtime drivers.
Structure used to handle boolean flags.
Definition: utils.h:199
Structure for mutex and tracking information.
Definition: lock.h:135
Support for dynamic strings.
Definition: strings.h:623
Structure for variables, used for configurations and for channel variables.
struct ast_variable * next
struct columns::@4 list
char name[0]
struct mysql_conn * database
struct tables::@5 list
struct tables::mysql_columns columns
ast_mutex_t lock
structure to hold users read from users.conf
static struct test_val a
Definitions to aid in the use of thread local storage.
#define AST_THREADSTORAGE(name)
Define a thread storage variable.
Definition: threadstorage.h:86
Utility functions.
#define ast_clear_flag(p, flag)
Definition: utils.h:77