xref: /PHP-5.6/ext/pdo_pgsql/pgsql_driver.c (revision 4a442274)
1 /*
2   +----------------------------------------------------------------------+
3   | PHP Version 5                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2016 The PHP Group                                |
6   +----------------------------------------------------------------------+
7   | This source file is subject to version 3.01 of the PHP license,      |
8   | that is bundled with this package in the file LICENSE, and is        |
9   | available through the world-wide-web at the following url:           |
10   | http://www.php.net/license/3_01.txt                                  |
11   | If you did not receive a copy of the PHP license and are unable to   |
12   | obtain it through the world-wide-web, please send a note to          |
13   | license@php.net so we can mail you a copy immediately.               |
14   +----------------------------------------------------------------------+
15   | Authors: Edin Kadribasic <edink@emini.dk>                            |
16   |          Ilia Alshanestsky <ilia@prohost.org>                        |
17   |          Wez Furlong <wez@php.net>                                   |
18   +----------------------------------------------------------------------+
19 */
20 
21 /* $Id$ */
22 
23 #ifdef HAVE_CONFIG_H
24 #include "config.h"
25 #endif
26 
27 #include "php.h"
28 #include "php_ini.h"
29 #include "ext/standard/info.h"
30 #include "ext/standard/php_string.h"
31 #include "main/php_network.h"
32 #include "pdo/php_pdo.h"
33 #include "pdo/php_pdo_driver.h"
34 #include "pdo/php_pdo_error.h"
35 #include "ext/standard/file.h"
36 
37 #undef PACKAGE_BUGREPORT
38 #undef PACKAGE_NAME
39 #undef PACKAGE_STRING
40 #undef PACKAGE_TARNAME
41 #undef PACKAGE_VERSION
42 #include "pg_config.h" /* needed for PG_VERSION */
43 #include "php_pdo_pgsql.h"
44 #include "php_pdo_pgsql_int.h"
45 #include "zend_exceptions.h"
46 
47 static int pgsql_handle_in_transaction(pdo_dbh_t *dbh TSRMLS_DC);
48 
_pdo_pgsql_trim_message(const char * message,int persistent)49 static char * _pdo_pgsql_trim_message(const char *message, int persistent)
50 {
51 	register int i = strlen(message)-1;
52 	char *tmp;
53 
54 	if (i>1 && (message[i-1] == '\r' || message[i-1] == '\n') && message[i] == '.') {
55 		--i;
56 	}
57 	while (i>0 && (message[i] == '\r' || message[i] == '\n')) {
58 		--i;
59 	}
60 	++i;
61 	tmp = pemalloc(i + 1, persistent);
62 	memcpy(tmp, message, i);
63 	tmp[i] = '\0';
64 
65 	return tmp;
66 }
67 
_pdo_pgsql_escape_credentials(char * str TSRMLS_DC)68 static char * _pdo_pgsql_escape_credentials(char *str TSRMLS_DC)
69 {
70 	int len;
71 
72 	if (str) {
73 		return php_addcslashes(str, strlen(str), &len, 0, "\\'", sizeof("\\'") TSRMLS_CC);
74 	}
75 
76 	return NULL;
77 }
78 
_pdo_pgsql_error(pdo_dbh_t * dbh,pdo_stmt_t * stmt,int errcode,const char * sqlstate,const char * msg,const char * file,int line TSRMLS_DC)79 int _pdo_pgsql_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, int errcode, const char *sqlstate, const char *msg, const char *file, int line TSRMLS_DC) /* {{{ */
80 {
81 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
82 	pdo_error_type *pdo_err = stmt ? &stmt->error_code : &dbh->error_code;
83 	pdo_pgsql_error_info *einfo = &H->einfo;
84 	char *errmsg = PQerrorMessage(H->server);
85 
86 	einfo->errcode = errcode;
87 	einfo->file = file;
88 	einfo->line = line;
89 
90 	if (einfo->errmsg) {
91 		pefree(einfo->errmsg, dbh->is_persistent);
92 		einfo->errmsg = NULL;
93 	}
94 
95 	if (sqlstate == NULL || strlen(sqlstate) >= sizeof(pdo_error_type)) {
96 		strcpy(*pdo_err, "HY000");
97 	}
98 	else {
99 		strcpy(*pdo_err, sqlstate);
100 	}
101 
102 	if (msg) {
103 		einfo->errmsg = estrdup(msg);
104 	}
105 	else if (errmsg) {
106 		einfo->errmsg = _pdo_pgsql_trim_message(errmsg, dbh->is_persistent);
107 	}
108 
109 	if (!dbh->methods) {
110 		zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode TSRMLS_CC, "SQLSTATE[%s] [%d] %s",
111 				*pdo_err, einfo->errcode, einfo->errmsg);
112 	}
113 
114 	return errcode;
115 }
116 /* }}} */
117 
_pdo_pgsql_notice(pdo_dbh_t * dbh,const char * message)118 static void _pdo_pgsql_notice(pdo_dbh_t *dbh, const char *message) /* {{{ */
119 {
120 /*	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data; */
121 }
122 /* }}} */
123 
pdo_pgsql_fetch_error_func(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info TSRMLS_DC)124 static int pdo_pgsql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC) /* {{{ */
125 {
126 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
127 	pdo_pgsql_error_info *einfo = &H->einfo;
128 
129 	if (einfo->errcode) {
130 		add_next_index_long(info, einfo->errcode);
131 		add_next_index_string(info, einfo->errmsg, 1);
132 	}
133 
134 	return 1;
135 }
136 /* }}} */
137 
138 /* {{{ pdo_pgsql_create_lob_stream */
pgsql_lob_write(php_stream * stream,const char * buf,size_t count TSRMLS_DC)139 static size_t pgsql_lob_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
140 {
141 	struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
142 	return lo_write(self->conn, self->lfd, (char*)buf, count);
143 }
144 
pgsql_lob_read(php_stream * stream,char * buf,size_t count TSRMLS_DC)145 static size_t pgsql_lob_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
146 {
147 	struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
148 	return lo_read(self->conn, self->lfd, buf, count);
149 }
150 
pgsql_lob_close(php_stream * stream,int close_handle TSRMLS_DC)151 static int pgsql_lob_close(php_stream *stream, int close_handle TSRMLS_DC)
152 {
153 	struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
154 	pdo_dbh_t *dbh = self->dbh;
155 
156 	if (close_handle) {
157 		lo_close(self->conn, self->lfd);
158 	}
159 	efree(self);
160 	php_pdo_dbh_delref(dbh TSRMLS_CC);
161 	return 0;
162 }
163 
pgsql_lob_flush(php_stream * stream TSRMLS_DC)164 static int pgsql_lob_flush(php_stream *stream TSRMLS_DC)
165 {
166 	return 0;
167 }
168 
pgsql_lob_seek(php_stream * stream,off_t offset,int whence,off_t * newoffset TSRMLS_DC)169 static int pgsql_lob_seek(php_stream *stream, off_t offset, int whence,
170 		off_t *newoffset TSRMLS_DC)
171 {
172 	struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
173 	int pos = lo_lseek(self->conn, self->lfd, offset, whence);
174 	*newoffset = pos;
175 	return pos >= 0 ? 0 : -1;
176 }
177 
178 php_stream_ops pdo_pgsql_lob_stream_ops = {
179 	pgsql_lob_write,
180 	pgsql_lob_read,
181 	pgsql_lob_close,
182 	pgsql_lob_flush,
183 	"pdo_pgsql lob stream",
184 	pgsql_lob_seek,
185 	NULL,
186 	NULL,
187 	NULL
188 };
189 
pdo_pgsql_create_lob_stream(pdo_dbh_t * dbh,int lfd,Oid oid TSRMLS_DC)190 php_stream *pdo_pgsql_create_lob_stream(pdo_dbh_t *dbh, int lfd, Oid oid TSRMLS_DC)
191 {
192 	php_stream *stm;
193 	struct pdo_pgsql_lob_self *self = ecalloc(1, sizeof(*self));
194 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
195 
196 	self->dbh = dbh;
197 	self->lfd = lfd;
198 	self->oid = oid;
199 	self->conn = H->server;
200 
201 	stm = php_stream_alloc(&pdo_pgsql_lob_stream_ops, self, 0, "r+b");
202 
203 	if (stm) {
204 		php_pdo_dbh_addref(dbh TSRMLS_CC);
205 		return stm;
206 	}
207 
208 	efree(self);
209 	return NULL;
210 }
211 /* }}} */
212 
pgsql_handle_closer(pdo_dbh_t * dbh TSRMLS_DC)213 static int pgsql_handle_closer(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
214 {
215 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
216 	if (H) {
217 		if (H->server) {
218 			PQfinish(H->server);
219 			H->server = NULL;
220 		}
221 		if (H->einfo.errmsg) {
222 			pefree(H->einfo.errmsg, dbh->is_persistent);
223 			H->einfo.errmsg = NULL;
224 		}
225 		pefree(H, dbh->is_persistent);
226 		dbh->driver_data = NULL;
227 	}
228 	return 0;
229 }
230 /* }}} */
231 
pgsql_handle_preparer(pdo_dbh_t * dbh,const char * sql,long sql_len,pdo_stmt_t * stmt,zval * driver_options TSRMLS_DC)232 static int pgsql_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC)
233 {
234 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
235 	pdo_pgsql_stmt *S = ecalloc(1, sizeof(pdo_pgsql_stmt));
236 	int scrollable;
237 	int ret;
238 	char *nsql = NULL;
239 	int nsql_len = 0;
240 	int emulate = 0;
241 	int execute_only = 0;
242 
243 	S->H = H;
244 	stmt->driver_data = S;
245 	stmt->methods = &pgsql_stmt_methods;
246 
247 	scrollable = pdo_attr_lval(driver_options, PDO_ATTR_CURSOR,
248 		PDO_CURSOR_FWDONLY TSRMLS_CC) == PDO_CURSOR_SCROLL;
249 
250 	if (scrollable) {
251 		if (S->cursor_name) {
252 			efree(S->cursor_name);
253 		}
254 		spprintf(&S->cursor_name, 0, "pdo_crsr_%08x", ++H->stmt_counter);
255 		emulate = 1;
256 	} else if (driver_options) {
257 		if (pdo_attr_lval(driver_options, PDO_PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT, H->disable_native_prepares TSRMLS_CC) == 1) {
258 			php_error_docref(NULL TSRMLS_CC, E_DEPRECATED, "PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT is deprecated, use PDO::ATTR_EMULATE_PREPARES instead");
259 			emulate = 1;
260 		}
261 		if (pdo_attr_lval(driver_options, PDO_ATTR_EMULATE_PREPARES, H->emulate_prepares TSRMLS_CC) == 1) {
262 			emulate = 1;
263 		}
264 		if (pdo_attr_lval(driver_options, PDO_PGSQL_ATTR_DISABLE_PREPARES, H->disable_prepares TSRMLS_CC) == 1) {
265 			execute_only = 1;
266 		}
267 	} else {
268 		emulate = H->disable_native_prepares || H->emulate_prepares;
269 		execute_only = H->disable_prepares;
270 	}
271 
272 	if (!emulate && PQprotocolVersion(H->server) > 2) {
273 		stmt->supports_placeholders = PDO_PLACEHOLDER_NAMED;
274 		stmt->named_rewrite_template = "$%d";
275 		ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len TSRMLS_CC);
276 
277 		if (ret == 1) {
278 			/* query was re-written */
279 			sql = nsql;
280 		} else if (ret == -1) {
281 			/* couldn't grok it */
282 			strcpy(dbh->error_code, stmt->error_code);
283 			return 0;
284 		}
285 
286 		if (!execute_only) {
287 			/* prepared query: set the query name and defer the
288 			   actual prepare until the first execute call */
289 			spprintf(&S->stmt_name, 0, "pdo_stmt_%08x", ++H->stmt_counter);
290 		}
291 
292 		if (nsql) {
293 			S->query = nsql;
294 		} else {
295 			S->query = estrdup(sql);
296 		}
297 
298 		return 1;
299 	}
300 
301 	stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
302 	return 1;
303 }
304 
pgsql_handle_doer(pdo_dbh_t * dbh,const char * sql,long sql_len TSRMLS_DC)305 static long pgsql_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC)
306 {
307 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
308 	PGresult *res;
309 	long ret = 1;
310 	ExecStatusType qs;
311 
312 	if (!(res = PQexec(H->server, sql))) {
313 		/* fatal error */
314 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
315 		return -1;
316 	}
317 	qs = PQresultStatus(res);
318 	if (qs != PGRES_COMMAND_OK && qs != PGRES_TUPLES_OK) {
319 		pdo_pgsql_error(dbh, qs, pdo_pgsql_sqlstate(res));
320 		PQclear(res);
321 		return -1;
322 	}
323 	H->pgoid = PQoidValue(res);
324 	ret = (qs == PGRES_COMMAND_OK) ? atol(PQcmdTuples(res)) : 0L;
325 	PQclear(res);
326 
327 	return ret;
328 }
329 
pgsql_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,int unquotedlen,char ** quoted,int * quotedlen,enum pdo_param_type paramtype TSRMLS_DC)330 static int pgsql_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, int unquotedlen, char **quoted, int *quotedlen, enum pdo_param_type paramtype TSRMLS_DC)
331 {
332 	unsigned char *escaped;
333 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
334 	size_t tmp_len;
335 
336 	switch (paramtype) {
337 		case PDO_PARAM_LOB:
338 			/* escapedlen returned by PQescapeBytea() accounts for trailing 0 */
339 			escaped = PQescapeByteaConn(H->server, (unsigned char *)unquoted, (size_t)unquotedlen, &tmp_len);
340 			*quotedlen = (int)tmp_len + 1;
341 			*quoted = emalloc(*quotedlen + 1);
342 			memcpy((*quoted)+1, escaped, *quotedlen-2);
343 			(*quoted)[0] = '\'';
344 			(*quoted)[*quotedlen-1] = '\'';
345 			(*quoted)[*quotedlen] = '\0';
346 			PQfreemem(escaped);
347 			break;
348 		default:
349 			*quoted = safe_emalloc(2, unquotedlen, 3);
350 			(*quoted)[0] = '\'';
351 			*quotedlen = PQescapeStringConn(H->server, *quoted + 1, unquoted, (size_t)unquotedlen, NULL);
352 			(*quoted)[*quotedlen + 1] = '\'';
353 			(*quoted)[*quotedlen + 2] = '\0';
354 			*quotedlen += 2;
355 	}
356 	return 1;
357 }
358 
pdo_pgsql_last_insert_id(pdo_dbh_t * dbh,const char * name,unsigned int * len TSRMLS_DC)359 static char *pdo_pgsql_last_insert_id(pdo_dbh_t *dbh, const char *name, unsigned int *len TSRMLS_DC)
360 {
361 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
362 	char *id = NULL;
363 	PGresult *res;
364 	ExecStatusType status;
365 	zend_bool savepoint = 0;
366 
367 	if (name == NULL) {
368 		savepoint = pgsql_handle_in_transaction(dbh TSRMLS_CC);
369 
370 		if (savepoint) {
371 			/* The savepoint is overwritten every time. */
372 			(void)PQexec(H->server, "SAVEPOINT _php_lastid_savepoint");
373 		}
374 		res = PQexec(H->server, "SELECT LASTVAL()");
375 	} else {
376 		const char *q[1];
377 		q[0] = name;
378 
379 		res = PQexecParams(H->server, "SELECT CURRVAL($1)", 1, NULL, q, NULL, NULL, 0);
380 	}
381 	status = PQresultStatus(res);
382 
383 	if (res && (status == PGRES_TUPLES_OK)) {
384 		id = estrdup((char *)PQgetvalue(res, 0, 0));
385 		*len = PQgetlength(res, 0, 0);
386 	} else {
387 		if (savepoint) {
388 			(void)PQexec(H->server, "ROLLBACK TO SAVEPOINT _php_lastid_savepoint");
389 		}
390 		pdo_pgsql_error(dbh, status, pdo_pgsql_sqlstate(res));
391 		*len = spprintf(&id, 0, "%ld", (long) H->pgoid);
392 	}
393 
394 	if (savepoint) {
395 		(void)PQexec(H->server, "RELEASE SAVEPOINT _php_lastid_savepoint");
396 	}
397 
398 	if (res) {
399 		PQclear(res);
400 	}
401 
402 	return id;
403 }
404 
pdo_pgsql_get_attribute(pdo_dbh_t * dbh,long attr,zval * return_value TSRMLS_DC)405 static int pdo_pgsql_get_attribute(pdo_dbh_t *dbh, long attr, zval *return_value TSRMLS_DC)
406 {
407 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
408 
409 	switch (attr) {
410 		case PDO_ATTR_EMULATE_PREPARES:
411 			ZVAL_BOOL(return_value, H->emulate_prepares);
412 			break;
413 
414 		case PDO_PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT:
415 			php_error_docref(NULL TSRMLS_CC, E_DEPRECATED, "PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT is deprecated, use PDO::ATTR_EMULATE_PREPARES instead");
416 			ZVAL_BOOL(return_value, H->disable_native_prepares);
417 			break;
418 
419 		case PDO_PGSQL_ATTR_DISABLE_PREPARES:
420 			ZVAL_BOOL(return_value, H->disable_prepares);
421 			break;
422 
423 		case PDO_ATTR_CLIENT_VERSION:
424 			ZVAL_STRING(return_value, PG_VERSION, 1);
425 			break;
426 
427 		case PDO_ATTR_SERVER_VERSION:
428 			if (PQprotocolVersion(H->server) >= 3) { /* PostgreSQL 7.4 or later */
429 				ZVAL_STRING(return_value, (char*)PQparameterStatus(H->server, "server_version"), 1);
430 			} else /* emulate above via a query */
431 			{
432 				PGresult *res = PQexec(H->server, "SELECT VERSION()");
433 				if (res && PQresultStatus(res) == PGRES_TUPLES_OK) {
434 					ZVAL_STRING(return_value, (char *)PQgetvalue(res, 0, 0), 1);
435 				}
436 
437 				if (res) {
438 					PQclear(res);
439 				}
440 			}
441 			break;
442 
443 		case PDO_ATTR_CONNECTION_STATUS:
444 			switch (PQstatus(H->server)) {
445 				case CONNECTION_STARTED:
446 					ZVAL_STRINGL(return_value, "Waiting for connection to be made.", sizeof("Waiting for connection to be made.")-1, 1);
447 					break;
448 
449 				case CONNECTION_MADE:
450 				case CONNECTION_OK:
451 					ZVAL_STRINGL(return_value, "Connection OK; waiting to send.", sizeof("Connection OK; waiting to send.")-1, 1);
452 					break;
453 
454 				case CONNECTION_AWAITING_RESPONSE:
455 					ZVAL_STRINGL(return_value, "Waiting for a response from the server.", sizeof("Waiting for a response from the server.")-1, 1);
456 					break;
457 
458 				case CONNECTION_AUTH_OK:
459 					ZVAL_STRINGL(return_value, "Received authentication; waiting for backend start-up to finish.", sizeof("Received authentication; waiting for backend start-up to finish.")-1, 1);
460 					break;
461 #ifdef CONNECTION_SSL_STARTUP
462 				case CONNECTION_SSL_STARTUP:
463 					ZVAL_STRINGL(return_value, "Negotiating SSL encryption.", sizeof("Negotiating SSL encryption.")-1, 1);
464 					break;
465 #endif
466 				case CONNECTION_SETENV:
467 					ZVAL_STRINGL(return_value, "Negotiating environment-driven parameter settings.", sizeof("Negotiating environment-driven parameter settings.")-1, 1);
468 					break;
469 
470 				case CONNECTION_BAD:
471 				default:
472 					ZVAL_STRINGL(return_value, "Bad connection.", sizeof("Bad connection.")-1, 1);
473 					break;
474 			}
475 			break;
476 
477 		case PDO_ATTR_SERVER_INFO: {
478 			int spid = PQbackendPID(H->server);
479 			char *tmp;
480 			spprintf(&tmp, 0,
481 				"PID: %d; Client Encoding: %s; Is Superuser: %s; Session Authorization: %s; Date Style: %s",
482 				spid,
483 				(char*)PQparameterStatus(H->server, "client_encoding"),
484 				(char*)PQparameterStatus(H->server, "is_superuser"),
485 				(char*)PQparameterStatus(H->server, "session_authorization"),
486 				(char*)PQparameterStatus(H->server, "DateStyle"));
487 			ZVAL_STRING(return_value, tmp, 0);
488 		}
489 			break;
490 
491 		default:
492 			return 0;
493 	}
494 
495 	return 1;
496 }
497 
498 /* {{{ */
pdo_pgsql_check_liveness(pdo_dbh_t * dbh TSRMLS_DC)499 static int pdo_pgsql_check_liveness(pdo_dbh_t *dbh TSRMLS_DC)
500 {
501 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
502 	if (PQstatus(H->server) == CONNECTION_BAD) {
503 		PQreset(H->server);
504 	}
505 	return (PQstatus(H->server) == CONNECTION_OK) ? SUCCESS : FAILURE;
506 }
507 /* }}} */
508 
pgsql_handle_in_transaction(pdo_dbh_t * dbh TSRMLS_DC)509 static int pgsql_handle_in_transaction(pdo_dbh_t *dbh TSRMLS_DC)
510 {
511 	pdo_pgsql_db_handle *H;
512 
513 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
514 
515 	return PQtransactionStatus(H->server) > PQTRANS_IDLE;
516 }
517 
pdo_pgsql_transaction_cmd(const char * cmd,pdo_dbh_t * dbh TSRMLS_DC)518 static int pdo_pgsql_transaction_cmd(const char *cmd, pdo_dbh_t *dbh TSRMLS_DC)
519 {
520 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
521 	PGresult *res;
522 	int ret = 1;
523 
524 	res = PQexec(H->server, cmd);
525 
526 	if (PQresultStatus(res) != PGRES_COMMAND_OK) {
527 		pdo_pgsql_error(dbh, PQresultStatus(res), pdo_pgsql_sqlstate(res));
528 		ret = 0;
529 	}
530 
531 	PQclear(res);
532 	return ret;
533 }
534 
pgsql_handle_begin(pdo_dbh_t * dbh TSRMLS_DC)535 static int pgsql_handle_begin(pdo_dbh_t *dbh TSRMLS_DC)
536 {
537 	return pdo_pgsql_transaction_cmd("BEGIN", dbh TSRMLS_CC);
538 }
539 
pgsql_handle_commit(pdo_dbh_t * dbh TSRMLS_DC)540 static int pgsql_handle_commit(pdo_dbh_t *dbh TSRMLS_DC)
541 {
542 	int ret = pdo_pgsql_transaction_cmd("COMMIT", dbh TSRMLS_CC);
543 
544 	/* When deferred constraints are used the commit could
545 	   fail, and a ROLLBACK implicitly ran. See bug #67462 */
546 	if (!ret) {
547 		dbh->in_txn = pgsql_handle_in_transaction(dbh TSRMLS_CC);
548 	}
549 
550 	return ret;
551 }
552 
pgsql_handle_rollback(pdo_dbh_t * dbh TSRMLS_DC)553 static int pgsql_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC)
554 {
555 	return pdo_pgsql_transaction_cmd("ROLLBACK", dbh TSRMLS_CC);
556 }
557 
558 /* {{{ proto string PDO::pgsqlCopyFromArray(string $table_name , array $rows [, string $delimiter [, string $null_as ] [, string $fields])
559    Returns true if the copy worked fine or false if error */
PHP_METHOD(PDO,pgsqlCopyFromArray)560 static PHP_METHOD(PDO, pgsqlCopyFromArray)
561 {
562 	pdo_dbh_t *dbh;
563 	pdo_pgsql_db_handle *H;
564 
565 	zval *pg_rows;
566 
567 	char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
568 	int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
569 	char *query;
570 
571 	PGresult *pgsql_result;
572 	ExecStatusType status;
573 
574 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s/a|sss",
575 					&table_name, &table_name_len, &pg_rows,
576 					&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
577 		return;
578 	}
579 
580 	if (!zend_hash_num_elements(Z_ARRVAL_P(pg_rows))) {
581 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot copy from an empty array");
582 		RETURN_FALSE;
583 	}
584 
585 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
586 	PDO_CONSTRUCT_CHECK;
587 	PDO_DBH_CLEAR_ERR();
588 
589 	/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
590 	if (pg_fields) {
591 		spprintf(&query, 0, "COPY %s (%s) FROM STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, pg_fields, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
592 	} else {
593 		spprintf(&query, 0, "COPY %s FROM STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
594 	}
595 
596 	/* Obtain db Handle */
597 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
598 
599 	while ((pgsql_result = PQgetResult(H->server))) {
600 		PQclear(pgsql_result);
601 	}
602 	pgsql_result = PQexec(H->server, query);
603 
604 	efree(query);
605 	query = NULL;
606 
607 	if (pgsql_result) {
608 		status = PQresultStatus(pgsql_result);
609 	} else {
610 		status = (ExecStatusType) PQstatus(H->server);
611 	}
612 
613 	if (status == PGRES_COPY_IN && pgsql_result) {
614 		int command_failed = 0;
615 		int buffer_len = 0;
616 		zval **tmp;
617 		HashPosition pos;
618 
619 		PQclear(pgsql_result);
620 		zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(pg_rows), &pos);
621 		while (zend_hash_get_current_data_ex(Z_ARRVAL_P(pg_rows), (void **) &tmp, &pos) == SUCCESS) {
622 			int query_len;
623 			convert_to_string_ex(tmp);
624 
625 			if (buffer_len < Z_STRLEN_PP(tmp)) {
626 				buffer_len = Z_STRLEN_PP(tmp);
627 				query = erealloc(query, buffer_len + 2); /* room for \n\0 */
628 			}
629 			memcpy(query, Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp));
630 			query_len = Z_STRLEN_PP(tmp);
631 			if (query[query_len - 1] != '\n') {
632 				query[query_len++] = '\n';
633 			}
634 			query[query_len] = '\0';
635 			if (PQputCopyData(H->server, query, query_len) != 1) {
636                         	efree(query);
637 	                        pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
638 				PDO_HANDLE_DBH_ERR();
639         	                RETURN_FALSE;
640                 	}
641 			zend_hash_move_forward_ex(Z_ARRVAL_P(pg_rows), &pos);
642                 }
643 		if (query) {
644 			efree(query);
645 		}
646 
647 		if (PQputCopyEnd(H->server, NULL) != 1) {
648 			pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
649 			PDO_HANDLE_DBH_ERR();
650 			RETURN_FALSE;
651 		}
652 
653 		while ((pgsql_result = PQgetResult(H->server))) {
654 			if (PGRES_COMMAND_OK != PQresultStatus(pgsql_result)) {
655 				pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
656 				command_failed = 1;
657 			}
658 			PQclear(pgsql_result);
659 		}
660 
661 		PDO_HANDLE_DBH_ERR();
662 		RETURN_BOOL(!command_failed);
663 	} else {
664 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
665 		PQclear(pgsql_result);
666 		PDO_HANDLE_DBH_ERR();
667 		RETURN_FALSE;
668 	}
669 }
670 /* }}} */
671 
672 /* {{{ proto string PDO::pgsqlCopyFromFile(string $table_name , string $filename [, string $delimiter [, string $null_as ] [, string $fields])
673    Returns true if the copy worked fine or false if error */
PHP_METHOD(PDO,pgsqlCopyFromFile)674 static PHP_METHOD(PDO, pgsqlCopyFromFile)
675 {
676 	pdo_dbh_t *dbh;
677 	pdo_pgsql_db_handle *H;
678 
679 	char *table_name, *filename, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
680 	int  table_name_len, filename_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
681 	char *query;
682 	PGresult *pgsql_result;
683 	ExecStatusType status;
684 	php_stream *stream;
685 
686 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sp|sss",
687 				&table_name, &table_name_len, &filename, &filename_len,
688 				&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
689 		return;
690 	}
691 
692 	/* Obtain db Handler */
693 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
694 	PDO_CONSTRUCT_CHECK;
695 	PDO_DBH_CLEAR_ERR();
696 
697 	stream = php_stream_open_wrapper_ex(filename, "rb", ENFORCE_SAFE_MODE, NULL, FG(default_context));
698 	if (!stream) {
699 		pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to open the file");
700 		PDO_HANDLE_DBH_ERR();
701 		RETURN_FALSE;
702 	}
703 
704 	/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
705 	if (pg_fields) {
706 		spprintf(&query, 0, "COPY %s (%s) FROM STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, pg_fields, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
707 	} else {
708 		spprintf(&query, 0, "COPY %s FROM STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
709 	}
710 
711 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
712 
713 	while ((pgsql_result = PQgetResult(H->server))) {
714 		PQclear(pgsql_result);
715 	}
716 	pgsql_result = PQexec(H->server, query);
717 
718 	efree(query);
719 
720 	if (pgsql_result) {
721 		status = PQresultStatus(pgsql_result);
722 	} else {
723 		status = (ExecStatusType) PQstatus(H->server);
724 	}
725 
726 	if (status == PGRES_COPY_IN && pgsql_result) {
727 		char *buf;
728 		int command_failed = 0;
729 		size_t line_len = 0;
730 
731 		PQclear(pgsql_result);
732 		while ((buf = php_stream_get_line(stream, NULL, 0, &line_len)) != NULL) {
733 			if (PQputCopyData(H->server, buf, line_len) != 1) {
734 	                        efree(buf);
735         	                pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
736 				php_stream_close(stream);
737 				PDO_HANDLE_DBH_ERR();
738 				RETURN_FALSE;
739 			}
740 			efree(buf);
741 		}
742 		php_stream_close(stream);
743 
744 		if (PQputCopyEnd(H->server, NULL) != 1) {
745 			pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
746 			PDO_HANDLE_DBH_ERR();
747 			RETURN_FALSE;
748 		}
749 
750 		while ((pgsql_result = PQgetResult(H->server))) {
751 			if (PGRES_COMMAND_OK != PQresultStatus(pgsql_result)) {
752 				pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
753 				command_failed = 1;
754 			}
755 			PQclear(pgsql_result);
756 		}
757 
758 		PDO_HANDLE_DBH_ERR();
759 		RETURN_BOOL(!command_failed);
760 	} else {
761 		php_stream_close(stream);
762 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
763 		PQclear(pgsql_result);
764 		PDO_HANDLE_DBH_ERR();
765 		RETURN_FALSE;
766 	}
767 }
768 /* }}} */
769 
770 
771 /* {{{ proto string PDO::pgsqlCopyToFile(string $table_name , $filename, [string $delimiter [, string $null_as [, string $fields]]])
772    Returns true if the copy worked fine or false if error */
PHP_METHOD(PDO,pgsqlCopyToFile)773 static PHP_METHOD(PDO, pgsqlCopyToFile)
774 {
775 	pdo_dbh_t *dbh;
776 	pdo_pgsql_db_handle *H;
777 
778 	char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL, *filename = NULL;
779 	int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len, filename_len;
780 	char *query;
781 
782 	PGresult *pgsql_result;
783 	ExecStatusType status;
784 
785 	php_stream *stream;
786 
787 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sp|sss",
788 					&table_name, &table_name_len, &filename, &filename_len,
789 					&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
790 		return;
791 	}
792 
793 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
794 	PDO_CONSTRUCT_CHECK;
795 	PDO_DBH_CLEAR_ERR();
796 
797 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
798 
799 	stream = php_stream_open_wrapper_ex(filename, "wb", ENFORCE_SAFE_MODE, NULL, FG(default_context));
800 	if (!stream) {
801 		pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to open the file for writing");
802 		PDO_HANDLE_DBH_ERR();
803 		RETURN_FALSE;
804 	}
805 
806 	while ((pgsql_result = PQgetResult(H->server))) {
807 		PQclear(pgsql_result);
808 	}
809 
810 	/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
811 	if (pg_fields) {
812 		spprintf(&query, 0, "COPY %s (%s) TO STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, pg_fields, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
813 	} else {
814 		spprintf(&query, 0, "COPY %s TO STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
815 	}
816 	pgsql_result = PQexec(H->server, query);
817 	efree(query);
818 
819 	if (pgsql_result) {
820 		status = PQresultStatus(pgsql_result);
821 	} else {
822 		status = (ExecStatusType) PQstatus(H->server);
823 	}
824 
825 	if (status == PGRES_COPY_OUT && pgsql_result) {
826 		PQclear(pgsql_result);
827 		while (1) {
828 			char *csv = NULL;
829 			int ret = PQgetCopyData(H->server, &csv, 0);
830 
831 			if (ret == -1) {
832 				break; /* done */
833 			} else if (ret > 0) {
834 				if (php_stream_write(stream, csv, ret) != ret) {
835 					pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to write to file");
836 					PQfreemem(csv);
837 					php_stream_close(stream);
838 					PDO_HANDLE_DBH_ERR();
839 					RETURN_FALSE;
840 				} else {
841 					PQfreemem(csv);
842 				}
843 			} else {
844 				pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
845 				php_stream_close(stream);
846 				PDO_HANDLE_DBH_ERR();
847 				RETURN_FALSE;
848 			}
849 		}
850 		php_stream_close(stream);
851 
852 		while ((pgsql_result = PQgetResult(H->server))) {
853 			PQclear(pgsql_result);
854 		}
855 		RETURN_TRUE;
856 	} else {
857 		php_stream_close(stream);
858 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
859 		PQclear(pgsql_result);
860 		PDO_HANDLE_DBH_ERR();
861 		RETURN_FALSE;
862 	}
863 }
864 /* }}} */
865 
866 /* {{{ proto string PDO::pgsqlCopyToArray(string $table_name , [string $delimiter [, string $null_as [, string $fields]]])
867    Returns true if the copy worked fine or false if error */
PHP_METHOD(PDO,pgsqlCopyToArray)868 static PHP_METHOD(PDO, pgsqlCopyToArray)
869 {
870 	pdo_dbh_t *dbh;
871 	pdo_pgsql_db_handle *H;
872 
873 	char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
874 	int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
875 	char *query;
876 
877 	PGresult *pgsql_result;
878 	ExecStatusType status;
879 
880 	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|sss",
881 		&table_name, &table_name_len,
882 		&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
883 		return;
884 	}
885 
886 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
887 	PDO_CONSTRUCT_CHECK;
888 	PDO_DBH_CLEAR_ERR();
889 
890 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
891 
892 	while ((pgsql_result = PQgetResult(H->server))) {
893 		PQclear(pgsql_result);
894 	}
895 
896 	/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
897 	if (pg_fields) {
898 		spprintf(&query, 0, "COPY %s (%s) TO STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, pg_fields, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
899 	} else {
900 		spprintf(&query, 0, "COPY %s TO STDIN WITH DELIMITER E'%c' NULL AS E'%s'", table_name, (pg_delim_len ? *pg_delim : '\t'), (pg_null_as_len ? pg_null_as : "\\\\N"));
901 	}
902 	pgsql_result = PQexec(H->server, query);
903 	efree(query);
904 
905 	if (pgsql_result) {
906 		status = PQresultStatus(pgsql_result);
907 	} else {
908 		status = (ExecStatusType) PQstatus(H->server);
909 	}
910 
911 	if (status == PGRES_COPY_OUT && pgsql_result) {
912 		PQclear(pgsql_result);
913                 array_init(return_value);
914 
915 		while (1) {
916 			char *csv = NULL;
917 			int ret = PQgetCopyData(H->server, &csv, 0);
918 			if (ret == -1) {
919 				break; /* copy done */
920 			} else if (ret > 0) {
921 				add_next_index_stringl(return_value, csv, ret, 1);
922 				PQfreemem(csv);
923 			} else {
924 				pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
925 				PDO_HANDLE_DBH_ERR();
926 				RETURN_FALSE;
927 			}
928 		}
929 
930 		while ((pgsql_result = PQgetResult(H->server))) {
931 			PQclear(pgsql_result);
932 		}
933 	} else {
934 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
935 		PQclear(pgsql_result);
936 		PDO_HANDLE_DBH_ERR();
937 		RETURN_FALSE;
938 	}
939 }
940 /* }}} */
941 
942 
943 /* {{{ proto string PDO::pgsqlLOBCreate()
944    Creates a new large object, returning its identifier.  Must be called inside a transaction. */
PHP_METHOD(PDO,pgsqlLOBCreate)945 static PHP_METHOD(PDO, pgsqlLOBCreate)
946 {
947 	pdo_dbh_t *dbh;
948 	pdo_pgsql_db_handle *H;
949 	Oid lfd;
950 
951 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
952 	PDO_CONSTRUCT_CHECK;
953 	PDO_DBH_CLEAR_ERR();
954 
955 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
956 	lfd = lo_creat(H->server, INV_READ|INV_WRITE);
957 
958 	if (lfd != InvalidOid) {
959 		char *buf;
960 		spprintf(&buf, 0, "%lu", (long) lfd);
961 		RETURN_STRING(buf, 0);
962 	}
963 
964 	pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
965 	PDO_HANDLE_DBH_ERR();
966 	RETURN_FALSE;
967 }
968 /* }}} */
969 
970 /* {{{ proto resource PDO::pgsqlLOBOpen(string oid [, string mode = 'rb'])
971    Opens an existing large object stream.  Must be called inside a transaction. */
PHP_METHOD(PDO,pgsqlLOBOpen)972 static PHP_METHOD(PDO, pgsqlLOBOpen)
973 {
974 	pdo_dbh_t *dbh;
975 	pdo_pgsql_db_handle *H;
976 	Oid oid;
977 	int lfd;
978 	char *oidstr;
979 	int oidstrlen;
980 	char *modestr = "rb";
981 	int modestrlen;
982 	int mode = INV_READ;
983 	char *end_ptr;
984 
985 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s",
986 				&oidstr, &oidstrlen, &modestr, &modestrlen)) {
987 		RETURN_FALSE;
988 	}
989 
990 	oid = (Oid)strtoul(oidstr, &end_ptr, 10);
991 	if (oid == 0 && (errno == ERANGE || errno == EINVAL)) {
992 		RETURN_FALSE;
993 	}
994 
995 	if (strpbrk(modestr, "+w")) {
996 		mode = INV_READ|INV_WRITE;
997 	}
998 
999 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
1000 	PDO_CONSTRUCT_CHECK;
1001 	PDO_DBH_CLEAR_ERR();
1002 
1003 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
1004 
1005 	lfd = lo_open(H->server, oid, mode);
1006 
1007 	if (lfd >= 0) {
1008 		php_stream *stream = pdo_pgsql_create_lob_stream(dbh, lfd, oid TSRMLS_CC);
1009 		if (stream) {
1010 			php_stream_to_zval(stream, return_value);
1011 			return;
1012 		}
1013 	} else {
1014 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
1015 	}
1016 
1017 	PDO_HANDLE_DBH_ERR();
1018 	RETURN_FALSE;
1019 }
1020 /* }}} */
1021 
1022 /* {{{ proto bool PDO::pgsqlLOBUnlink(string oid)
1023    Deletes the large object identified by oid.  Must be called inside a transaction. */
PHP_METHOD(PDO,pgsqlLOBUnlink)1024 static PHP_METHOD(PDO, pgsqlLOBUnlink)
1025 {
1026 	pdo_dbh_t *dbh;
1027 	pdo_pgsql_db_handle *H;
1028 	Oid oid;
1029 	char *oidstr, *end_ptr;
1030 	int oidlen;
1031 
1032 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
1033 				&oidstr, &oidlen)) {
1034 		RETURN_FALSE;
1035 	}
1036 
1037 	oid = (Oid)strtoul(oidstr, &end_ptr, 10);
1038 	if (oid == 0 && (errno == ERANGE || errno == EINVAL)) {
1039 		RETURN_FALSE;
1040 	}
1041 
1042 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
1043 	PDO_CONSTRUCT_CHECK;
1044 	PDO_DBH_CLEAR_ERR();
1045 
1046 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
1047 
1048 	if (1 == lo_unlink(H->server, oid)) {
1049 		RETURN_TRUE;
1050 	}
1051 
1052 	pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
1053 	PDO_HANDLE_DBH_ERR();
1054 	RETURN_FALSE;
1055 }
1056 /* }}} */
1057 
1058 /* {{{ proto mixed PDO::pgsqlGetNotify([ int $result_type = PDO::FETCH_USE_DEFAULT] [, int $ms_timeout = 0 ]])
1059    Get asyncronous notification */
PHP_METHOD(PDO,pgsqlGetNotify)1060 static PHP_METHOD(PDO, pgsqlGetNotify)
1061 {
1062 	pdo_dbh_t *dbh;
1063 	pdo_pgsql_db_handle *H;
1064 	long result_type = PDO_FETCH_USE_DEFAULT;
1065 	long ms_timeout = 0;
1066 	PGnotify *pgsql_notify;
1067 
1068 	if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ll",
1069 				&result_type, &ms_timeout)) {
1070 		RETURN_FALSE;
1071 	}
1072 
1073 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
1074 	PDO_CONSTRUCT_CHECK;
1075 
1076 	if (result_type == PDO_FETCH_USE_DEFAULT) {
1077 		result_type = dbh->default_fetch_type;
1078 	}
1079 
1080 	if (result_type != PDO_FETCH_BOTH && result_type != PDO_FETCH_ASSOC && result_type != PDO_FETCH_NUM) {
1081 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid result type");
1082  		RETURN_FALSE;
1083 	}
1084 
1085 	if (ms_timeout < 0) {
1086 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid timeout");
1087  		RETURN_FALSE;
1088 	}
1089 
1090 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
1091 
1092 	PQconsumeInput(H->server);
1093 	pgsql_notify = PQnotifies(H->server);
1094 
1095 	if (ms_timeout && !pgsql_notify) {
1096 		php_pollfd_for_ms(PQsocket(H->server), PHP_POLLREADABLE, ms_timeout);
1097 
1098 		PQconsumeInput(H->server);
1099 		pgsql_notify = PQnotifies(H->server);
1100 	}
1101 
1102 	if (!pgsql_notify) {
1103 		RETURN_FALSE;
1104 	}
1105 
1106 	array_init(return_value);
1107 	if (result_type == PDO_FETCH_NUM || result_type == PDO_FETCH_BOTH) {
1108 		add_index_string(return_value, 0, pgsql_notify->relname, 1);
1109 		add_index_long(return_value, 1, pgsql_notify->be_pid);
1110 		if (pgsql_notify->extra && pgsql_notify->extra[0]) {
1111 			add_index_string(return_value, 2, pgsql_notify->extra, 1);
1112 		}
1113 	}
1114 	if (result_type == PDO_FETCH_ASSOC || result_type == PDO_FETCH_BOTH) {
1115 		add_assoc_string(return_value, "message", pgsql_notify->relname, 1);
1116 		add_assoc_long(return_value, "pid", pgsql_notify->be_pid);
1117 		if (pgsql_notify->extra && pgsql_notify->extra[0]) {
1118 			add_assoc_string(return_value, "payload", pgsql_notify->extra, 1);
1119 		}
1120 	}
1121 
1122 	PQfreemem(pgsql_notify);
1123 }
1124 /* }}} */
1125 
1126 /* {{{ proto int PDO::pgsqlGetPid()
1127    Get backend(server) pid */
PHP_METHOD(PDO,pgsqlGetPid)1128 static PHP_METHOD(PDO, pgsqlGetPid)
1129 {
1130 	pdo_dbh_t *dbh;
1131 	pdo_pgsql_db_handle *H;
1132 
1133 	dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
1134 	PDO_CONSTRUCT_CHECK;
1135 
1136 	H = (pdo_pgsql_db_handle *)dbh->driver_data;
1137 
1138 	RETURN_LONG(PQbackendPID(H->server));
1139 }
1140 /* }}} */
1141 
1142 
1143 static const zend_function_entry dbh_methods[] = {
1144 	PHP_ME(PDO, pgsqlLOBCreate, NULL, ZEND_ACC_PUBLIC)
1145 	PHP_ME(PDO, pgsqlLOBOpen, NULL, ZEND_ACC_PUBLIC)
1146 	PHP_ME(PDO, pgsqlLOBUnlink, NULL, ZEND_ACC_PUBLIC)
1147 	PHP_ME(PDO, pgsqlCopyFromArray, NULL, ZEND_ACC_PUBLIC)
1148 	PHP_ME(PDO, pgsqlCopyFromFile, NULL, ZEND_ACC_PUBLIC)
1149 	PHP_ME(PDO, pgsqlCopyToArray, NULL, ZEND_ACC_PUBLIC)
1150 	PHP_ME(PDO, pgsqlCopyToFile, NULL, ZEND_ACC_PUBLIC)
1151         PHP_ME(PDO, pgsqlGetNotify, NULL, ZEND_ACC_PUBLIC)
1152         PHP_ME(PDO, pgsqlGetPid, NULL, ZEND_ACC_PUBLIC)
1153 	PHP_FE_END
1154 };
1155 
pdo_pgsql_get_driver_methods(pdo_dbh_t * dbh,int kind TSRMLS_DC)1156 static const zend_function_entry *pdo_pgsql_get_driver_methods(pdo_dbh_t *dbh, int kind TSRMLS_DC)
1157 {
1158 	switch (kind) {
1159 		case PDO_DBH_DRIVER_METHOD_KIND_DBH:
1160 			return dbh_methods;
1161 		default:
1162 			return NULL;
1163 	}
1164 }
1165 
pdo_pgsql_set_attr(pdo_dbh_t * dbh,long attr,zval * val TSRMLS_DC)1166 static int pdo_pgsql_set_attr(pdo_dbh_t *dbh, long attr, zval *val TSRMLS_DC)
1167 {
1168 	pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
1169 
1170 	switch (attr) {
1171 		case PDO_ATTR_EMULATE_PREPARES:
1172 			H->emulate_prepares = Z_LVAL_P(val);
1173 			return 1;
1174 		case PDO_PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT:
1175 			php_error_docref(NULL TSRMLS_CC, E_DEPRECATED, "PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT is deprecated, use PDO::ATTR_EMULATE_PREPARES instead");
1176 			H->disable_native_prepares = Z_LVAL_P(val);
1177 			return 1;
1178 		case PDO_PGSQL_ATTR_DISABLE_PREPARES:
1179 			H->disable_prepares = Z_LVAL_P(val);
1180 			return 1;
1181 		default:
1182 			return 0;
1183 	}
1184 }
1185 
1186 static struct pdo_dbh_methods pgsql_methods = {
1187 	pgsql_handle_closer,
1188 	pgsql_handle_preparer,
1189 	pgsql_handle_doer,
1190 	pgsql_handle_quoter,
1191 	pgsql_handle_begin,
1192 	pgsql_handle_commit,
1193 	pgsql_handle_rollback,
1194 	pdo_pgsql_set_attr,
1195 	pdo_pgsql_last_insert_id,
1196 	pdo_pgsql_fetch_error_func,
1197 	pdo_pgsql_get_attribute,
1198 	pdo_pgsql_check_liveness,	/* check_liveness */
1199 	pdo_pgsql_get_driver_methods,  /* get_driver_methods */
1200 	NULL,
1201 	pgsql_handle_in_transaction,
1202 };
1203 
pdo_pgsql_handle_factory(pdo_dbh_t * dbh,zval * driver_options TSRMLS_DC)1204 static int pdo_pgsql_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_DC) /* {{{ */
1205 {
1206 	pdo_pgsql_db_handle *H;
1207 	int ret = 0;
1208 	char *conn_str, *p, *e;
1209 	char *tmp_user, *tmp_pass;
1210 	long connect_timeout = 30;
1211 
1212 	H = pecalloc(1, sizeof(pdo_pgsql_db_handle), dbh->is_persistent);
1213 	dbh->driver_data = H;
1214 
1215 	H->einfo.errcode = 0;
1216 	H->einfo.errmsg = NULL;
1217 
1218 	/* PostgreSQL wants params in the connect string to be separated by spaces,
1219 	 * if the PDO standard semicolons are used, we convert them to spaces
1220 	 */
1221 	e = (char *) dbh->data_source + strlen(dbh->data_source);
1222 	p = (char *) dbh->data_source;
1223 	while ((p = memchr(p, ';', (e - p)))) {
1224 		*p = ' ';
1225 	}
1226 
1227 	if (driver_options) {
1228 		connect_timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, 30 TSRMLS_CC);
1229 	}
1230 
1231 	/* escape username and password, if provided */
1232 	tmp_user = _pdo_pgsql_escape_credentials(dbh->username TSRMLS_CC);
1233 	tmp_pass = _pdo_pgsql_escape_credentials(dbh->password TSRMLS_CC);
1234 
1235 	/* support both full connection string & connection string + login and/or password */
1236 	if (tmp_user && tmp_pass) {
1237 		spprintf(&conn_str, 0, "%s user='%s' password='%s' connect_timeout=%ld", dbh->data_source, tmp_user, tmp_pass, connect_timeout);
1238 	} else if (tmp_user) {
1239 		spprintf(&conn_str, 0, "%s user='%s' connect_timeout=%ld", dbh->data_source, tmp_user, connect_timeout);
1240 	} else if (tmp_pass) {
1241 		spprintf(&conn_str, 0, "%s password='%s' connect_timeout=%ld", dbh->data_source, tmp_pass, connect_timeout);
1242 	} else {
1243 		spprintf(&conn_str, 0, "%s connect_timeout=%ld", (char *) dbh->data_source, connect_timeout);
1244 	}
1245 
1246 	H->server = PQconnectdb(conn_str);
1247 
1248 	if (tmp_user) {
1249 		efree(tmp_user);
1250 	}
1251 	if (tmp_pass) {
1252 		efree(tmp_pass);
1253 	}
1254 
1255 	efree(conn_str);
1256 
1257 	if (PQstatus(H->server) != CONNECTION_OK) {
1258 		pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, PHP_PDO_PGSQL_CONNECTION_FAILURE_SQLSTATE);
1259 		goto cleanup;
1260 	}
1261 
1262 	PQsetNoticeProcessor(H->server, (void(*)(void*,const char*))_pdo_pgsql_notice, (void *)&dbh);
1263 
1264 	H->attached = 1;
1265 	H->pgoid = -1;
1266 
1267 	dbh->methods = &pgsql_methods;
1268 	dbh->alloc_own_columns = 1;
1269 	dbh->max_escaped_char_length = 2;
1270 
1271 	ret = 1;
1272 
1273 cleanup:
1274 	dbh->methods = &pgsql_methods;
1275 	if (!ret) {
1276 		pgsql_handle_closer(dbh TSRMLS_CC);
1277 	}
1278 
1279 	return ret;
1280 }
1281 /* }}} */
1282 
1283 pdo_driver_t pdo_pgsql_driver = {
1284 	PDO_DRIVER_HEADER(pgsql),
1285 	pdo_pgsql_handle_factory
1286 };
1287 
1288 /*
1289  * Local variables:
1290  * tab-width: 4
1291  * c-basic-offset: 4
1292  * End:
1293  * vim600: noet sw=4 ts=4 fdm=marker
1294  * vim<600: noet sw=4 ts=4
1295  */
1296