forked from php/php-src
/
pgsql_driver.c
1269 lines (1067 loc) · 35.1 KB
/
pgsql_driver.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Edin Kadribasic <edink@emini.dk> |
| Ilia Alshanestsky <ilia@prohost.org> |
| Wez Furlong <wez@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "main/php_network.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "pdo/php_pdo_error.h"
#include "ext/standard/file.h"
#undef PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION
#include "pg_config.h" /* needed for PG_VERSION */
#include "php_pdo_pgsql.h"
#include "php_pdo_pgsql_int.h"
#include "zend_exceptions.h"
static char * _pdo_pgsql_trim_message(const char *message, int persistent)
{
register int i = strlen(message)-1;
char *tmp;
if (i>1 && (message[i-1] == '\r' || message[i-1] == '\n') && message[i] == '.') {
--i;
}
while (i>0 && (message[i] == '\r' || message[i] == '\n')) {
--i;
}
++i;
tmp = pemalloc(i + 1, persistent);
memcpy(tmp, message, i);
tmp[i] = '\0';
return tmp;
}
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) /* {{{ */
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
pdo_error_type *pdo_err = stmt ? &stmt->error_code : &dbh->error_code;
pdo_pgsql_error_info *einfo = &H->einfo;
char *errmsg = PQerrorMessage(H->server);
einfo->errcode = errcode;
einfo->file = file;
einfo->line = line;
if (einfo->errmsg) {
pefree(einfo->errmsg, dbh->is_persistent);
einfo->errmsg = NULL;
}
if (sqlstate == NULL || strlen(sqlstate) >= sizeof(pdo_error_type)) {
strcpy(*pdo_err, "HY000");
}
else {
strcpy(*pdo_err, sqlstate);
}
if (msg) {
einfo->errmsg = estrdup(msg);
}
else if (errmsg) {
einfo->errmsg = _pdo_pgsql_trim_message(errmsg, dbh->is_persistent);
}
if (!dbh->methods) {
zend_throw_exception_ex(php_pdo_get_exception(), einfo->errcode TSRMLS_CC, "SQLSTATE[%s] [%d] %s",
*pdo_err, einfo->errcode, einfo->errmsg);
}
return errcode;
}
/* }}} */
static void _pdo_pgsql_notice(pdo_dbh_t *dbh, const char *message) /* {{{ */
{
/* pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data; */
}
/* }}} */
static int pdo_pgsql_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC) /* {{{ */
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
pdo_pgsql_error_info *einfo = &H->einfo;
if (einfo->errcode) {
add_next_index_long(info, einfo->errcode);
add_next_index_string(info, einfo->errmsg, 1);
}
return 1;
}
/* }}} */
/* {{{ pdo_pgsql_create_lob_stream */
static size_t pgsql_lob_write(php_stream *stream, const char *buf, size_t count TSRMLS_DC)
{
struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
return lo_write(self->conn, self->lfd, (char*)buf, count);
}
static size_t pgsql_lob_read(php_stream *stream, char *buf, size_t count TSRMLS_DC)
{
struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
return lo_read(self->conn, self->lfd, buf, count);
}
static int pgsql_lob_close(php_stream *stream, int close_handle TSRMLS_DC)
{
struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
pdo_dbh_t *dbh = self->dbh;
if (close_handle) {
lo_close(self->conn, self->lfd);
}
efree(self);
php_pdo_dbh_delref(dbh TSRMLS_CC);
return 0;
}
static int pgsql_lob_flush(php_stream *stream TSRMLS_DC)
{
return 0;
}
static int pgsql_lob_seek(php_stream *stream, off_t offset, int whence,
off_t *newoffset TSRMLS_DC)
{
struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
int pos = lo_lseek(self->conn, self->lfd, offset, whence);
*newoffset = pos;
return pos >= 0 ? 0 : -1;
}
php_stream_ops pdo_pgsql_lob_stream_ops = {
pgsql_lob_write,
pgsql_lob_read,
pgsql_lob_close,
pgsql_lob_flush,
"pdo_pgsql lob stream",
pgsql_lob_seek,
NULL,
NULL,
NULL
};
php_stream *pdo_pgsql_create_lob_stream(pdo_dbh_t *dbh, int lfd, Oid oid TSRMLS_DC)
{
php_stream *stm;
struct pdo_pgsql_lob_self *self = ecalloc(1, sizeof(*self));
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
self->dbh = dbh;
self->lfd = lfd;
self->oid = oid;
self->conn = H->server;
stm = php_stream_alloc(&pdo_pgsql_lob_stream_ops, self, 0, "r+b");
if (stm) {
php_pdo_dbh_addref(dbh TSRMLS_CC);
return stm;
}
efree(self);
return NULL;
}
/* }}} */
static int pgsql_handle_closer(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
if (H) {
if (H->server) {
PQfinish(H->server);
H->server = NULL;
}
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(H, dbh->is_persistent);
dbh->driver_data = NULL;
}
return 0;
}
/* }}} */
static int pgsql_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
pdo_pgsql_stmt *S = ecalloc(1, sizeof(pdo_pgsql_stmt));
int scrollable;
int ret;
char *nsql = NULL;
int nsql_len = 0;
int emulate = 0;
int execute_only = 0;
S->H = H;
stmt->driver_data = S;
stmt->methods = &pgsql_stmt_methods;
scrollable = pdo_attr_lval(driver_options, PDO_ATTR_CURSOR,
PDO_CURSOR_FWDONLY TSRMLS_CC) == PDO_CURSOR_SCROLL;
if (scrollable) {
if (S->cursor_name) {
efree(S->cursor_name);
}
spprintf(&S->cursor_name, 0, "pdo_crsr_%08x", ++H->stmt_counter);
emulate = 1;
} else if (driver_options) {
if (pdo_attr_lval(driver_options, PDO_PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT, H->disable_native_prepares TSRMLS_CC) == 1) {
php_error_docref(NULL TSRMLS_CC, E_DEPRECATED, "PDO::PGSQL_ATTR_DISABLE_NATIVE_PREPARED_STATEMENT is deprecated, use PDO::ATTR_EMULATE_PREPARES instead");
emulate = 1;
}
if (pdo_attr_lval(driver_options, PDO_ATTR_EMULATE_PREPARES, H->emulate_prepares TSRMLS_CC) == 1) {
emulate = 1;
}
if (pdo_attr_lval(driver_options, PDO_PGSQL_ATTR_DISABLE_PREPARES, H->disable_prepares TSRMLS_CC) == 1) {
execute_only = 1;
}
} else {
emulate = H->disable_native_prepares || H->emulate_prepares;
execute_only = H->disable_prepares;
}
if (!emulate && PQprotocolVersion(H->server) > 2) {
stmt->supports_placeholders = PDO_PLACEHOLDER_NAMED;
stmt->named_rewrite_template = "$%d";
ret = pdo_parse_params(stmt, (char*)sql, sql_len, &nsql, &nsql_len TSRMLS_CC);
if (ret == 1) {
/* query was re-written */
sql = nsql;
} else if (ret == -1) {
/* couldn't grok it */
strcpy(dbh->error_code, stmt->error_code);
return 0;
}
if (!execute_only) {
/* prepared query: set the query name and defer the
actual prepare until the first execute call */
spprintf(&S->stmt_name, 0, "pdo_stmt_%08x", ++H->stmt_counter);
}
if (nsql) {
S->query = nsql;
} else {
S->query = estrdup(sql);
}
return 1;
}
stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
return 1;
}
static long pgsql_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
PGresult *res;
long ret = 1;
ExecStatusType qs;
if (!(res = PQexec(H->server, sql))) {
/* fatal error */
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
return -1;
}
qs = PQresultStatus(res);
if (qs != PGRES_COMMAND_OK && qs != PGRES_TUPLES_OK) {
pdo_pgsql_error(dbh, qs, pdo_pgsql_sqlstate(res));
PQclear(res);
return -1;
}
H->pgoid = PQoidValue(res);
ret = (qs == PGRES_COMMAND_OK) ? atol(PQcmdTuples(res)) : 0L;
PQclear(res);
return ret;
}
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)
{
unsigned char *escaped;
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
size_t tmp_len;
switch (paramtype) {
case PDO_PARAM_LOB:
/* escapedlen returned by PQescapeBytea() accounts for trailing 0 */
escaped = PQescapeByteaConn(H->server, (unsigned char *)unquoted, (size_t)unquotedlen, &tmp_len);
*quotedlen = (int)tmp_len + 1;
*quoted = emalloc(*quotedlen + 1);
memcpy((*quoted)+1, escaped, *quotedlen-2);
(*quoted)[0] = '\'';
(*quoted)[*quotedlen-1] = '\'';
(*quoted)[*quotedlen] = '\0';
PQfreemem(escaped);
break;
default:
*quoted = safe_emalloc(2, unquotedlen, 3);
(*quoted)[0] = '\'';
*quotedlen = PQescapeStringConn(H->server, *quoted + 1, unquoted, (size_t)unquotedlen, NULL);
(*quoted)[*quotedlen + 1] = '\'';
(*quoted)[*quotedlen + 2] = '\0';
*quotedlen += 2;
}
return 1;
}
static char *pdo_pgsql_last_insert_id(pdo_dbh_t *dbh, const char *name, unsigned int *len TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
char *id = NULL;
if (name == NULL) {
if (H->pgoid == InvalidOid) {
return NULL;
}
*len = spprintf(&id, 0, "%ld", (long) H->pgoid);
} else {
PGresult *res;
ExecStatusType status;
const char *q[1];
q[0] = name;
res = PQexecParams(H->server, "SELECT CURRVAL($1)", 1, NULL, q, NULL, NULL, 0);
status = PQresultStatus(res);
if (res && (status == PGRES_TUPLES_OK)) {
id = estrdup((char *)PQgetvalue(res, 0, 0));
*len = PQgetlength(res, 0, 0);
} else {
pdo_pgsql_error(dbh, status, pdo_pgsql_sqlstate(res));
}
if (res) {
PQclear(res);
}
}
return id;
}
static int pdo_pgsql_get_attribute(pdo_dbh_t *dbh, long attr, zval *return_value TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
switch (attr) {
case PDO_ATTR_CLIENT_VERSION:
ZVAL_STRING(return_value, PG_VERSION, 1);
break;
case PDO_ATTR_SERVER_VERSION:
if (PQprotocolVersion(H->server) >= 3) { /* PostgreSQL 7.4 or later */
ZVAL_STRING(return_value, (char*)PQparameterStatus(H->server, "server_version"), 1);
} else /* emulate above via a query */
{
PGresult *res = PQexec(H->server, "SELECT VERSION()");
if (res && PQresultStatus(res) == PGRES_TUPLES_OK) {
ZVAL_STRING(return_value, (char *)PQgetvalue(res, 0, 0), 1);
}
if (res) {
PQclear(res);
}
}
break;
case PDO_ATTR_CONNECTION_STATUS:
switch (PQstatus(H->server)) {
case CONNECTION_STARTED:
ZVAL_STRINGL(return_value, "Waiting for connection to be made.", sizeof("Waiting for connection to be made.")-1, 1);
break;
case CONNECTION_MADE:
case CONNECTION_OK:
ZVAL_STRINGL(return_value, "Connection OK; waiting to send.", sizeof("Connection OK; waiting to send.")-1, 1);
break;
case CONNECTION_AWAITING_RESPONSE:
ZVAL_STRINGL(return_value, "Waiting for a response from the server.", sizeof("Waiting for a response from the server.")-1, 1);
break;
case CONNECTION_AUTH_OK:
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);
break;
#ifdef CONNECTION_SSL_STARTUP
case CONNECTION_SSL_STARTUP:
ZVAL_STRINGL(return_value, "Negotiating SSL encryption.", sizeof("Negotiating SSL encryption.")-1, 1);
break;
#endif
case CONNECTION_SETENV:
ZVAL_STRINGL(return_value, "Negotiating environment-driven parameter settings.", sizeof("Negotiating environment-driven parameter settings.")-1, 1);
break;
case CONNECTION_BAD:
default:
ZVAL_STRINGL(return_value, "Bad connection.", sizeof("Bad connection.")-1, 1);
break;
}
break;
case PDO_ATTR_SERVER_INFO: {
int spid = PQbackendPID(H->server);
char *tmp;
spprintf(&tmp, 0,
"PID: %d; Client Encoding: %s; Is Superuser: %s; Session Authorization: %s; Date Style: %s",
spid,
(char*)PQparameterStatus(H->server, "client_encoding"),
(char*)PQparameterStatus(H->server, "is_superuser"),
(char*)PQparameterStatus(H->server, "session_authorization"),
(char*)PQparameterStatus(H->server, "DateStyle"));
ZVAL_STRING(return_value, tmp, 0);
}
break;
default:
return 0;
}
return 1;
}
/* {{{ */
static int pdo_pgsql_check_liveness(pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
if (PQstatus(H->server) == CONNECTION_BAD) {
PQreset(H->server);
}
return (PQstatus(H->server) == CONNECTION_OK) ? SUCCESS : FAILURE;
}
/* }}} */
static int pgsql_handle_in_transaction(pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_pgsql_db_handle *H;
H = (pdo_pgsql_db_handle *)dbh->driver_data;
return PQtransactionStatus(H->server) > PQTRANS_IDLE;
}
static int pdo_pgsql_transaction_cmd(const char *cmd, pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_pgsql_db_handle *H = (pdo_pgsql_db_handle *)dbh->driver_data;
PGresult *res;
int ret = 1;
res = PQexec(H->server, cmd);
if (PQresultStatus(res) != PGRES_COMMAND_OK) {
pdo_pgsql_error(dbh, PQresultStatus(res), pdo_pgsql_sqlstate(res));
ret = 0;
}
PQclear(res);
return ret;
}
static int pgsql_handle_begin(pdo_dbh_t *dbh TSRMLS_DC)
{
return pdo_pgsql_transaction_cmd("BEGIN", dbh TSRMLS_CC);
}
static int pgsql_handle_commit(pdo_dbh_t *dbh TSRMLS_DC)
{
int ret = pdo_pgsql_transaction_cmd("COMMIT", dbh TSRMLS_CC);
/* When deferred constraints are used the commit could
fail, and a ROLLBACK implicitly ran. See bug #67462 */
if (!ret) {
dbh->in_txn = pgsql_handle_in_transaction(dbh);
}
return ret;
}
static int pgsql_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC)
{
return pdo_pgsql_transaction_cmd("ROLLBACK", dbh TSRMLS_CC);
}
/* {{{ proto string PDO::pgsqlCopyFromArray(string $table_name , array $rows [, string $delimiter [, string $null_as ] [, string $fields])
Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyFromArray)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
zval *pg_rows;
char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
char *query;
PGresult *pgsql_result;
ExecStatusType status;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s/a|sss",
&table_name, &table_name_len, &pg_rows,
&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
return;
}
if (!zend_hash_num_elements(Z_ARRVAL_P(pg_rows))) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot copy from an empty array");
RETURN_FALSE;
}
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
if (pg_fields) {
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"));
} else {
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"));
}
/* Obtain db Handle */
H = (pdo_pgsql_db_handle *)dbh->driver_data;
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
pgsql_result = PQexec(H->server, query);
efree(query);
query = NULL;
if (pgsql_result) {
status = PQresultStatus(pgsql_result);
} else {
status = (ExecStatusType) PQstatus(H->server);
}
if (status == PGRES_COPY_IN && pgsql_result) {
int command_failed = 0;
int buffer_len = 0;
zval **tmp;
HashPosition pos;
PQclear(pgsql_result);
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(pg_rows), &pos);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(pg_rows), (void **) &tmp, &pos) == SUCCESS) {
int query_len;
convert_to_string_ex(tmp);
if (buffer_len < Z_STRLEN_PP(tmp)) {
buffer_len = Z_STRLEN_PP(tmp);
query = erealloc(query, buffer_len + 2); /* room for \n\0 */
}
memcpy(query, Z_STRVAL_PP(tmp), Z_STRLEN_PP(tmp));
query_len = Z_STRLEN_PP(tmp);
if (query[query_len - 1] != '\n') {
query[query_len++] = '\n';
}
query[query_len] = '\0';
if (PQputCopyData(H->server, query, query_len) != 1) {
efree(query);
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
zend_hash_move_forward_ex(Z_ARRVAL_P(pg_rows), &pos);
}
if (query) {
efree(query);
}
if (PQputCopyEnd(H->server, NULL) != 1) {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
while ((pgsql_result = PQgetResult(H->server))) {
if (PGRES_COMMAND_OK != PQresultStatus(pgsql_result)) {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
command_failed = 1;
}
PQclear(pgsql_result);
}
PDO_HANDLE_DBH_ERR();
RETURN_BOOL(!command_failed);
} else {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
PQclear(pgsql_result);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string PDO::pgsqlCopyFromFile(string $table_name , string $filename [, string $delimiter [, string $null_as ] [, string $fields])
Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyFromFile)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
char *table_name, *filename, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
int table_name_len, filename_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
char *query;
PGresult *pgsql_result;
ExecStatusType status;
php_stream *stream;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sp|sss",
&table_name, &table_name_len, &filename, &filename_len,
&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
return;
}
/* Obtain db Handler */
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
stream = php_stream_open_wrapper_ex(filename, "rb", ENFORCE_SAFE_MODE, NULL, FG(default_context));
if (!stream) {
pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to open the file");
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
if (pg_fields) {
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"));
} else {
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"));
}
H = (pdo_pgsql_db_handle *)dbh->driver_data;
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
pgsql_result = PQexec(H->server, query);
efree(query);
if (pgsql_result) {
status = PQresultStatus(pgsql_result);
} else {
status = (ExecStatusType) PQstatus(H->server);
}
if (status == PGRES_COPY_IN && pgsql_result) {
char *buf;
int command_failed = 0;
size_t line_len = 0;
PQclear(pgsql_result);
while ((buf = php_stream_get_line(stream, NULL, 0, &line_len)) != NULL) {
if (PQputCopyData(H->server, buf, line_len) != 1) {
efree(buf);
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
php_stream_close(stream);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
efree(buf);
}
php_stream_close(stream);
if (PQputCopyEnd(H->server, NULL) != 1) {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
while ((pgsql_result = PQgetResult(H->server))) {
if (PGRES_COMMAND_OK != PQresultStatus(pgsql_result)) {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
command_failed = 1;
}
PQclear(pgsql_result);
}
PDO_HANDLE_DBH_ERR();
RETURN_BOOL(!command_failed);
} else {
php_stream_close(stream);
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
PQclear(pgsql_result);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string PDO::pgsqlCopyToFile(string $table_name , $filename, [string $delimiter [, string $null_as [, string $fields]]])
Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyToFile)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL, *filename = NULL;
int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len, filename_len;
char *query;
PGresult *pgsql_result;
ExecStatusType status;
php_stream *stream;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sp|sss",
&table_name, &table_name_len, &filename, &filename_len,
&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
return;
}
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
H = (pdo_pgsql_db_handle *)dbh->driver_data;
stream = php_stream_open_wrapper_ex(filename, "wb", ENFORCE_SAFE_MODE, NULL, FG(default_context));
if (!stream) {
pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to open the file for writing");
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
if (pg_fields) {
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"));
} else {
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"));
}
pgsql_result = PQexec(H->server, query);
efree(query);
if (pgsql_result) {
status = PQresultStatus(pgsql_result);
} else {
status = (ExecStatusType) PQstatus(H->server);
}
if (status == PGRES_COPY_OUT && pgsql_result) {
PQclear(pgsql_result);
while (1) {
char *csv = NULL;
int ret = PQgetCopyData(H->server, &csv, 0);
if (ret == -1) {
break; /* done */
} else if (ret > 0) {
if (php_stream_write(stream, csv, ret) != ret) {
pdo_pgsql_error_msg(dbh, PGRES_FATAL_ERROR, "Unable to write to file");
PQfreemem(csv);
php_stream_close(stream);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
} else {
PQfreemem(csv);
}
} else {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
php_stream_close(stream);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
php_stream_close(stream);
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
RETURN_TRUE;
} else {
php_stream_close(stream);
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
PQclear(pgsql_result);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string PDO::pgsqlCopyToArray(string $table_name , [string $delimiter [, string $null_as [, string $fields]]])
Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyToArray)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
char *table_name, *pg_delim = NULL, *pg_null_as = NULL, *pg_fields = NULL;
int table_name_len, pg_delim_len = 0, pg_null_as_len = 0, pg_fields_len;
char *query;
PGresult *pgsql_result;
ExecStatusType status;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|sss",
&table_name, &table_name_len,
&pg_delim, &pg_delim_len, &pg_null_as, &pg_null_as_len, &pg_fields, &pg_fields_len) == FAILURE) {
return;
}
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
H = (pdo_pgsql_db_handle *)dbh->driver_data;
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
/* using pre-9.0 syntax as PDO_pgsql is 7.4+ compatible */
if (pg_fields) {
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"));
} else {
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"));
}
pgsql_result = PQexec(H->server, query);
efree(query);
if (pgsql_result) {
status = PQresultStatus(pgsql_result);
} else {
status = (ExecStatusType) PQstatus(H->server);
}
if (status == PGRES_COPY_OUT && pgsql_result) {
PQclear(pgsql_result);
array_init(return_value);
while (1) {
char *csv = NULL;
int ret = PQgetCopyData(H->server, &csv, 0);
if (ret == -1) {
break; /* copy done */
} else if (ret > 0) {
add_next_index_stringl(return_value, csv, ret, 1);
PQfreemem(csv);
} else {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
while ((pgsql_result = PQgetResult(H->server))) {
PQclear(pgsql_result);
}
} else {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, pdo_pgsql_sqlstate(pgsql_result));
PQclear(pgsql_result);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto string PDO::pgsqlLOBCreate()
Creates a new large object, returning its identifier. Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBCreate)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
Oid lfd;
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
H = (pdo_pgsql_db_handle *)dbh->driver_data;
lfd = lo_creat(H->server, INV_READ|INV_WRITE);
if (lfd != InvalidOid) {
char *buf;
spprintf(&buf, 0, "%lu", (long) lfd);
RETURN_STRING(buf, 0);
}
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
/* }}} */
/* {{{ proto resource PDO::pgsqlLOBOpen(string oid [, string mode = 'rb'])
Opens an existing large object stream. Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBOpen)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
Oid oid;
int lfd;
char *oidstr;
int oidstrlen;
char *modestr = "rb";
int modestrlen;
int mode = INV_READ;
char *end_ptr;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s",
&oidstr, &oidstrlen, &modestr, &modestrlen)) {
RETURN_FALSE;
}
oid = (Oid)strtoul(oidstr, &end_ptr, 10);
if (oid == 0 && (errno == ERANGE || errno == EINVAL)) {
RETURN_FALSE;
}
if (strpbrk(modestr, "+w")) {
mode = INV_READ|INV_WRITE;
}
dbh = zend_object_store_get_object(getThis() TSRMLS_CC);
PDO_CONSTRUCT_CHECK;
PDO_DBH_CLEAR_ERR();
H = (pdo_pgsql_db_handle *)dbh->driver_data;
lfd = lo_open(H->server, oid, mode);
if (lfd >= 0) {
php_stream *stream = pdo_pgsql_create_lob_stream(dbh, lfd, oid TSRMLS_CC);
if (stream) {
php_stream_to_zval(stream, return_value);
return;
}
} else {
pdo_pgsql_error(dbh, PGRES_FATAL_ERROR, NULL);
}
PDO_HANDLE_DBH_ERR();
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool PDO::pgsqlLOBUnlink(string oid)
Deletes the large object identified by oid. Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBUnlink)
{
pdo_dbh_t *dbh;
pdo_pgsql_db_handle *H;
Oid oid;
char *oidstr, *end_ptr;
int oidlen;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s",
&oidstr, &oidlen)) {
RETURN_FALSE;
}
oid = (Oid)strtoul(oidstr, &end_ptr, 10);
if (oid == 0 && (errno == ERANGE || errno == EINVAL)) {
RETURN_FALSE;
}