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mysql_wrap.php
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mysql_wrap.php
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<?
/* Cherokee's DBSlayer Wrapper for MySQL built-in functions
*
* Authors:
* Taher Shihadeh <taher@unixwars.com>
*
* Copyright (C) 2001-2011 Alvaro Lopez Ortega <alvaro@alobbs.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * The name "Alvaro Lopez Ortega" may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* NOTE:
*
* To override the mysql_* builtin functions, you need to provide
* phpize (php5-dev) and: `pecl install apd`.
*
* If you do not, you can still use the wrapper initializing it with a
* FALSE value as optional second parameter: cherokee_init($host, FALSE)
*
* runkit_function_redefine could be another approach. Remains to be seen.
*
*/
define("DEFAULT_ERRNO", 3000);
define("DEFAULT_ERROR", "DBSlayer: undefined MySQL error");
define("SERVER_INFO", "Cherokee DBSlayer MySQL bridge");
define("CLIENT_INFO", "DBSlayer MySQL Wrapper v1.0");
define("DEFAULT_LINK", "DBSLAYER_LINK");
define("DEFAULT_HOST", "http://localhost:8888");
$_dbslayer = NULL;
function cherokee_init ($host, $map = TRUE)
{
global $_dbslayer;
$curl = curl_init();
if (!$curl)
throw new Exception("DBSlayer MySQL Wrapper could not be created.");
$_dbslayer = array (
'db_host' => ($host) ? $host : ini_get('mysql.default_host'),
'db_user' => ini_get('mysql.default_user'),
'db_pass' => ini_get('mysql.default_password'),
'db_link' => DEFAULT_LINK,
'db_name' => NULL,
'encoding'=> ini_get('mysql.character_set'),
'curl' => $curl,
'success' => NULL,
'errno' => NULL,
'error' => NULL,
'insert_id'=> 0,
'affected_rows'=> 0);
if ($map == TRUE)
return _dbslayer_map();
return TRUE;
}
/* Debug */
function _dbslayer_print()
{
global $_dbslayer;
echo 'db_host: '. $_dbslayer['db_host']."\n";
echo 'db_user: '. $_dbslayer['db_user']."\n";
echo 'db_pass: '. $_dbslayer['db_pass']."\n";
echo 'db_link: '. $_dbslayer['db_link']."\n";
echo 'db_name: '. $_dbslayer['db_name']."\n";
echo 'success: '. $_dbslayer['success']."\n";
echo 'errno: '. $_dbslayer['errno']."\n";
echo 'error: '. $_dbslayer['error']."\n";
echo 'insert_id: '. $_dbslayer['insert_id']."\n";
echo 'affected_rows: '. $_dbslayer['affected_rows']."\n";
}
/* Transparently use DBSLAYER when approriate
*/
function _dbslayer_map()
{
$substs = array(
'is_resource' => 'cherokee_is_resource($link)',
'mysql_affected_rows' => 'cherokee_mysql_affected_rows($link)',
'mysql_client_encoding' => 'cherokee_mysql_client_encoding ($link)',
'mysql_close' => 'cherokee_mysql_close($link)',
'mysql_connect' => 'cherokee_mysql_connect($host, $user, $pass, $new_link, $client_flags)',
'mysql_create_db' => 'cherokee_mysql_create_db($database_name, $link)',
'mysql_data_seek' => 'cherokee_mysql_data_seek($result, $row_number)',
'mysql_db_name' => 'cherokee_mysql_db_name($result, $row, $field)',
'mysql_db_query' => 'cherokee_mysql_db_query($database, $query, $link)',
'mysql_drop_db' => 'cherokee_mysql_drop_db($database_name, $link)',
'mysql_errno' => 'cherokee_mysql_errno($link)',
'mysql_error' => 'cherokee_mysql_error($link)',
'mysql_escape_string' => 'cherokee_mysql_escape_string($unescaped_string)',
'mysql_fetch_array' => 'cherokee_mysql_fetch_array($result, $result_type)',
'mysql_fetch_assoc' => 'cherokee_mysql_fetch_assoc($result)',
'mysql_fetch_field' => 'cherokee_mysql_fetch_field($result, $field_offset)',
'mysql_fetch_lengths' => 'cherokee_mysql_fetch_lengths($result)',
'mysql_fetch_num' => 'cherokee_mysql_fetch_num($result)',
'mysql_fetch_object' => 'cherokee_mysql_fetch_object (&$result, $class_name, $params)',
'mysql_field_flags' => 'cherokee_mysql_field_flags ($result, $field_offset)',
'mysql_field_name' => 'cherokee_mysql_field_name ($result, $field_offset)',
'mysql_field_seek' => 'cherokee_mysql_field_seek (&$result, $field_offset)',
'mysql_field_type' => 'cherokee_mysql_field_type ($result, $field_offset)',
'mysql_free_result' => 'cherokee_mysql_free_result($result)',
'mysql_get_client_info' => 'cherokee_mysql_get_client_info()',
'mysql_get_host_info' => 'cherokee_mysql_get_host_info ($link)',
'mysql_get_proto_info' => 'cherokee_mysql_get_proto_info ($link)',
'mysql_get_server_info' => 'cherokee_mysql_get_server_info($link)',
'mysql_info' => 'cherokee_mysql_info ($link)',
'mysql_insert_id' => 'cherokee_mysql_insert_id($link)',
'mysql_list_dbs' => 'cherokee_mysql_list_dbs($link)',
'mysql_list_fields' => 'cherokee_mysql_list_fields ($database, $table_name, $link)',
'mysql_list_processes' => 'cherokee_mysql_list_processes ($link)',
'mysql_list_tables' => 'cherokee_mysql_list_tables ($database, $link)',
'mysql_num_fields' => 'cherokee_mysql_num_fields ($result)',
'mysql_num_rows' => 'cherokee_mysql_num_rows($result)',
'mysql_pconnect' => 'cherokee_mysql_pconnect($host, $user, $pass, $client_flags)',
'mysql_ping' => 'cherokee_mysql_ping ($link)',
'mysql_query' => 'cherokee_mysql_query($query, $link)',
'mysql_real_escape_string' => 'cherokee_mysql_real_escape_string($unescaped_string, $link)',
'mysql_result' => 'cherokee_mysql_result($result, $row, $field)',
'mysql_select_db' => 'cherokee_mysql_select_db($database_name, &$link)',
'mysql_set_charset' => 'cherokee_mysql_set_charset($charset, $link)',
'mysql_stat' => 'cherokee_mysql_stat($link)',
'mysql_tablename' => 'cherokee_mysql_tablename($result, $i)',
'mysql_thread_id' => 'cherokee_mysql_thread_id ($link)',
'mysql_unbuffered_query' => 'cherokee_mysql_unbuffered_query($query, $link)',
);
$args = array(
'is_resource' => '$link',
'mysql_affected_rows' => '$link = NULL',
'mysql_client_encoding' => '$link = NULL',
'mysql_close' => '$link = NULL',
'mysql_connect' => '$host = NULL, $user = NULL, $pass = NULL, $new_link = false, $client_flags = 0',
'mysql_create_db' => '$database_name, $link = NULL',
'mysql_data_seek' => '&$result, $row_number',
'mysql_db_name' => '$result, $row, $field = NULL',
'mysql_db_query' => '$database, $query, $link = NULL',
'mysql_drop_db' => '$database_name, $link = NULL',
'mysql_errno' => '$link = NULL',
'mysql_error' => '$link = NULL',
'mysql_escape_string' => '$unescaped_string',
'mysql_fetch_array' => '&$result, $result_type = MYSQL_BOTH',
'mysql_fetch_assoc' => '&$result',
'mysql_fetch_field' => '&$result, $field_offset = -1',
'mysql_fetch_lengths' => '$result',
'mysql_fetch_num' => '&$result',
'mysql_fetch_object' => '&$result, $class_name = "stdClass", $params = NULL',
'mysql_field_flags' => '$result, $field_offset',
'mysql_field_name' => '$result, $field_offset',
'mysql_field_seek' => '&$result, $field_offset',
'mysql_field_type' => '$result, $field_offset',
'mysql_free_result' => '&$result',
'mysql_get_client_info' => '',
'mysql_get_host_info' => '$link = NULL',
'mysql_get_proto_info' => '$link = NULL',
'mysql_get_server_info' => '$link = NULL',
'mysql_info' => '$link = NULL',
'mysql_insert_id' => '$link = NULL',
'mysql_list_dbs' => '$link = NULL',
'mysql_list_fields' => '$database, $table_name, $link = NULL',
'mysql_list_processes' => '$link = NULL',
'mysql_list_tables' => '$database, $link = NULL',
'mysql_num_fields' => '$result',
'mysql_num_rows' => '$result',
'mysql_pconnect' => '$host = NULL, $user = NULL, $pass = NULL, $client_flags = 0',
'mysql_ping' => '$link = NULL',
'mysql_query' => '$query, $link = NULL',
'mysql_real_escape_string' => '$unescaped_string, $link = NULL',
'mysql_result' => '&$result, $row, $field = 0',
'mysql_select_db' => '$database_name, $link = NULL',
'mysql_set_charset' => '$charset , $link = NULL',
'mysql_stat' => '$link = NULL',
'mysql_tablename' => '$result, $i',
'mysql_thread_id' => '$link = NULL',
'mysql_unbuffered_query' => '$query, $link = NULL',
);
foreach ($substs as $func => $ren_func) {
$ret = override_function($func, $args[$func], "return $substs[$func];");
$ret &= rename_function("__overridden__", "_$ren_func");
if ($ret == FALSE) return FALSE;
}
return TRUE;
}
/* Wrap DEFAULT_LINK checks and assignations */
function _dbslayer(&$link)
{
global $_dbslayer;
if ($link == NULL)
$link = $_dbslayer;
if (isset($link['db_link']) && $link['db_link'] == DEFAULT_LINK)
return TRUE;
return FALSE;
}
/* Delete NULL parameters before calling the wrapped functions */
function _call()
{
$args_in = func_get_args();
$args_num = func_num_args();
$args_out = array();
$func = $args_in[0];
for ($i=1; $i < $args_num ; $i++) {
if ($args_in[$i])
array_push($args_out, $args_in[$i]);
}
return call_user_func_array($func, $args_out);
}
/* Check if it is a DBSlayer result */
function _is_result($result)
{
if (isset($result["_dbslayer"]))
return TRUE;
return FALSE;
}
/* Fetch the RESULT entry */
function & _get_result (&$result)
{
if (!_is_result($result))
return NULL;
$idx = $result["_dbslayer"]["_idxres"];
$tmp = &$result[$idx]["RESULT"];
return $tmp;
}
/* Fetch the ROWS entry */
function & _get_rows (&$result)
{
if (!_is_result($result))
return NULL;
$idx = $result["_dbslayer"]["_idxres"];
$tmp = &$result[$idx]["RESULT"]["ROWS"];
return $tmp;
}
/* Fetch the HEADER entry */
function & _get_header (&$result)
{
if (!_is_result($result))
return NULL;
$idx = $result["_dbslayer"]["_idxres"];
$tmp = &$result[$idx]["RESULT"]["HEADER"];
return $tmp;
}
/* Fetch the [_dbslayer] private parameters */
function & _get_params (&$result)
{
if (!_is_result($result))
return NULL;
$tmp = &$result["_dbslayer"];
return $tmp;
}
/**********************************************************************
* Wrapped functions from now on
**********************************************************************/
/* is_resource - Finds whether a variable is a resource */
function cherokee_is_resource ($link)
{
if (_dbslayer($link))
return TRUE;
return _is_resource($link);
}
/* mysql_affected_rows - Get number of affected rows in previous MySQL operation */
function cherokee_mysql_affected_rows ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_affected_rows', $link);
}
return $link['affected_rows'];
}
/* mysql_client_encoding - Returns the name of the character set */
function cherokee_mysql_client_encoding ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_client_encoding', $link);
}
$query = "SHOW VARIABLES WHERE Variable_name='character_set_connection';";
$result = cherokee_mysql_query($query, $link);
$result = cherokee_mysql_fetch_array($result);
return $result['Value'];
}
/* mysql_close - Close MySQL connection */
function cherokee_mysql_close ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_close', $link);
}
return TRUE;
}
/* mysql_connect - Open a connection to a MySQL Server */
function cherokee_mysql_connect ($host = NULL, $user = NULL,
$pass = NULL, $new_link = false,
$client_flags = 0)
{
global $_dbslayer;
$host = ($host) ? $host:$_dbslayer['db_host'];
if ($host != $_dbslayer['db_host'])
return _mysql_connect($host, $user, $pass, $new_link, $client_flags);
return cherokee_mysql_pconnect ($host, $user, $pass, $client_flags);
}
/* mysql_create_db - Create a MySQL database */
function cherokee_mysql_create_db ($database_name, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_create_db', $database_name, $link);
}
$query = "CREATE DATABASE $database_name";
$result = cherokee_mysql_query($query, $link);
return $result;
}
/* mysql_data_seek - Move internal result pointer */
function cherokee_mysql_data_seek (&$result, $row_number)
{
if (!_is_result($result))
return _mysql_data_seek ($result, $row_number);
if ($row_number >= $result["_dbslayer"]["_rows"])
return FALSE;
$result["_dbslayer"]["_idxrow"] = $row_number;
return TRUE;
}
/* mysql_db_query - Send a MySQL query (and select a database). Deprecated */
function cherokee_mysql_db_query ($database, $query, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_db_query', $database, $query, $link);
}
cherokee_mysql_select_db($database);
return cherokee_mysql_query($query, $link);
}
/* mysql_db_name - Get result data */
/* Deprecated alias: mysql_dbname */
function cherokee_mysql_db_name ($result, $row, $field = NULL)
{
if (!_is_result($result))
return _mysql_db_name ($result, $row, $field);
// I have no idea what $field is used for
$tmp = _get_rows($result);
if (isset($tmp[$row][0]))
return $tmp[$row][0];
return FALSE;
}
/* mysql_drop_db - Drop (delete) a MySQL database */
/* Deprecated alias: mysql_dropdb */
function cherokee_mysql_drop_db ($database_name, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_drop_db', $database_name, $link);
}
$query = "DROP $database_name";
$result = cherokee_mysql_query($query, $link);
return $result;
}
/* mysql_errno - Returns the numerical value of the error message from previous MySQL operation */
function cherokee_mysql_errno ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_errno', $link);
}
return $link['errno'];
}
/* mysql_error - Returns the text of the error message from previous MySQL operation */
function cherokee_mysql_error ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_error', $link);
}
return $link['error'];
}
/* mysql_fetch_array - Fetch a result row as an associative array, a numeric array, or both */
function cherokee_mysql_fetch_array (&$result, $result_type = MYSQL_BOTH)
{
if (!_is_result($result))
return _mysql_fetch_array (&$result, $result_type);
// No RESULT field present
if ($result["_dbslayer"]["_idxres"] < 0)
return FALSE;
$idx = $result["_dbslayer"]["_idxres"];
$tmp = &$result[$idx];
// reset internal index
if ($result["_dbslayer"]["_idxrow"] >= $result["_dbslayer"]["_rows"]) {
$result["_dbslayer"]["_last_access"] = -1;
$result["_dbslayer"]["_idxrow"] = 0;
return FALSE;
}
$idx = $result["_dbslayer"]["_idxrow"];
$result["_dbslayer"]["_last_access"] = $result["_dbslayer"]["_idxrow"];
$result["_dbslayer"]["_idxrow"]++;
$num = $tmp["RESULT"]["ROWS"][$idx];
if ($result_type == MYSQL_NUM) {
return $num;
}
$keys = $tmp["RESULT"]["HEADER"];
$vals = $tmp["RESULT"]["ROWS"][$idx];
$assoc = array_combine($keys, $vals);
if ($result_type == MYSQL_ASSOC) {
return $assoc;
}
return array_merge($num, $assoc);
}
/* mysql_fetch_assoc - Fetch a result row as an associative array */
function cherokee_mysql_fetch_assoc (&$result)
{
return cherokee_mysql_fetch_array(&$result, MYSQL_ASSOC);
}
/* PARTIAL: mysql_fetch_field - Get column information from a result and return as an object */
function cherokee_mysql_fetch_field (&$result, $field_offset = -1)
{
if (!_is_result($result)) {
if ($field_offset == -1)
return _mysql_fetch_field ($result);
return _mysql_fetch_field ($result, $field_offset);
}
if ($field_offset == -1) {
$field_offset = $result["_dbslayer"][_field_offset]+1;
}
$obj = _get_result($result);
$fo = $field_offset;
if ($fo >= count($obj["HEADER"])) {
$result["_dbslayer"][_field_offset] = 0;
return NULL;
}
$meta = new Mysql_fetch_field_object();
$meta->name = $obj["HEADER"][$fo];
$meta->type = $obj["TYPES"][$fo];
$meta->blob = 0; // 1 if the column is a BLOB
$meta->numeric = 0; // 1 if the column is numeric
/* Many $meta-> fields remain UNIMPLEMENTED
$meta->table = $obj[""][$fo]; // name of the table the column belongs to
$meta->def = $obj[""][$fo]; // default value of the column
$meta->max_length = $obj[""][$fo]; // maximum length of the column
$meta->not_null = $obj[""][$fo]; // 1 if the column cannot be NULL
$meta->primary_key = $obj[""][$fo]; // 1 if the column is a primary key
$meta->unique_key = $obj[""][$fo]; // 1 if the column is a unique key
$meta->multiple_key = $obj[""][$fo]; // 1 if the column is a non-unique key
$meta->unsigned = $obj[""][$fo]; // 1 if the column is unsigned
$meta->zerofill = $obj[""][$fo]; // 1 if the column is zero-filled
*/
switch ($obj["TYPES"][$fo]) {
case MYSQL_TYPE_BLOB:
case MYSQL_TYPE_TINY_BLOB:
case MYSQL_TYPE_MEDIUM_BLOB:
case MYSQL_TYPE_LONG_BLOB:
$meta->blob = 1;
break;
case MYSQL_TYPE_TINY:
case MYSQL_TYPE_SHORT:
case MYSQL_TYPE_LONG:
case MYSQL_TYPE_INT24:
case MYSQL_TYPE_DECIMAL:
case MYSQL_TYPE_NEWDECIMAL:
case MYSQL_TYPE_DOUBLE:
case MYSQL_TYPE_FLOAT:
case MYSQL_TYPE_LONGLONG:
$meta->numeric = 1;
}
$result["_dbslayer"][_field_offset]++;
return $meta;
}
/* mysql_fetch_lengths - Get the length of each output in a result */
function cherokee_mysql_fetch_lengths ($result)
{
if (!_is_result($result))
return _mysql_fetch_lengths ($result);
$idx_last = $result["_dbslayer"]["_last_access"];
if ($idx_last <0)
return FALSE;
$rows = _get_rows($result);
$num = $rows[$idx_last];
$lengths = array();
foreach ($num as $field) {
array_push ($lengths, strlen($field));
}
return $lengths;
}
/* mysql_fetch_object - Fetch a result row as an object */
function cherokee_mysql_fetch_object (&$result, $class_name = 'stdClass', $params = NULL)
{
if (!_is_result($result)) {
return _call('_mysql_fetch_object', $result, $class_name, $params);
}
$obj = array();
$row = cherokee_mysql_fetch_assoc (&$result);
if (!$row)
return FALSE;
foreach ($row as $key=>$value) {
$obj[$key] = $value;
}
$obj = (object) $obj;
return $obj;
}
/* mysql_fetch_row - Get a result row as an enumerated array */
function cherokee_mysql_fetch_row (&$result)
{
return cherokee_mysql_fetch_array(&$result, MYSQL_NUM);
}
/* PARTIAL: mysql_field_flags - Get the flags associated with the specified field in a result */
/* Deprecated alias: mysql_fieldflags */
function cherokee_mysql_field_flags ($result, $field_offset)
{
if (!_is_result($result)) {
return _call('_mysql_field_flags', $result, $field_offset);
}
$field_num = count(_get_header($result));
if ($field_offset < 0 || $field_offset >= $field_num) {
trigger_error('field_offset does not exist', E_WARNING);
return FALSE;
}
// The rest of the functionality cannot currently be
// implemented. So fail:
throw new Exception("cherokee_mysql_field_flags not functional!");
}
/* UNIMPLEMENTED: mysql_field_len - Returns the length of the specified field */
function cherokee_mysql_field_len ($result, $field_offset) {}
/* mysql_field_name - Get the name of the specified field in a result */
/* Deprecated alias: mysql_fieldname */
function cherokee_mysql_field_name ($result, $field_offset) {
if (!_is_result($result)) {
return _call('_mysql_field_name', $result, $field_offset);
}
$header = _get_header($result);
$field_num = count($header);
if ($field_offset < 0 || $field_offset >= $field_num) {
trigger_error('field_offset does not exist', E_WARNING);
return FALSE;
}
return $header[$field_offset];
}
/* mysql_field_seek - Set result pointer to a specified field offset */
function cherokee_mysql_field_seek (&$result, $field_offset)
{
if (!_is_result($result)) {
return _call('_mysql_field_seek', $result, $field_offset);
}
$params = _get_params($result);
$field_num = $params["_fields"];
if ($field_offset < 0 || $field_offset >= $field_num) {
trigger_error('field_offset does not exist', E_WARNING);
return FALSE;
}
$result['_dbslayer']['_field_offset'] = $field_offset;
return TRUE;
}
/* UNIMPLEMENTED: mysql_field_table - Get name of the table the specified field is in */
function cherokee_mysql_field_table ($result, $field_offset) {}
/* mysql_field_type - Get the type of the specified field in a result */
function cherokee_mysql_field_type ($result, $field_offset)
{
if (!_is_result($result)) {
return _call('_mysql_field_type', $result, $field_offset);
}
$res = _get_result($result);
$tmp = $res['TYPES'];
$field_num = count($tmp);
if ($field_offset < 0 || $field_offset >= $field_num) {
trigger_error('field_offset does not exist', E_WARNING);
return FALSE;
}
return $tmp[$field_offset];
}
/* mysql_free_result - Free result memory */
function cherokee_mysql_free_result (&$result)
{
if (!_is_result($result))
return _mysql_free_result ($result);
return TRUE;
}
/* mysql_get_client_info - Get MySQL client info */
function cherokee_mysql_get_client_info ()
{
$info = _mysql_get_client_info();
return $info . ' ' . CLIENT_INFO;
}
/* mysql_get_host_info - Get MySQL host info */
function cherokee_mysql_get_host_info ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_get_host_info', $link);
}
$info = $link['db_host'] . 'via HTTP';
return $info;
}
/* mysql_get_proto_info - Get MySQL protocol info */
function cherokee_mysql_get_proto_info ($link = NULL)
{
if (_dbslayer($link))
$link = NULL;
return _call('_mysql_get_proto_info', $link);
}
/* mysql_get_server_info - Get MySQL server info */
function cherokee_mysql_get_server_info ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_get_server_info', $link);
}
return SERVER_INFO;
}
/* UNIMPLEMENTED: mysql_info - Get information about the most recent query */
function cherokee_mysql_info ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_info', $link);
}
}
/* mysql_insert_id - Get the ID generated from the previous INSERT operation */
function cherokee_mysql_insert_id ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_insert_id', $link);
}
if ($link['success'] != FALSE)
return $link['insert_id'];
return FALSE;
}
/* mysql_list_dbs - List databases available on a MySQL server */
/* Deprecated alias: mysql_listdbs */
function cherokee_mysql_list_dbs ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_list_dbs', $link);
}
$query = "SHOW DATABASES;";
$result = cherokee_mysql_query($query, $link);
if ($link['success'])
return $result;
return FALSE;
}
/* mysql_list_fields - List MySQL table fields */
/* Deprecated alias: mysql_listfields */
function cherokee_mysql_list_fields ($database, $table_name, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_list_fields', $database_name, $table_name, $link);
}
cherokee_mysql_select_db($database);
$query = "SHOW COLUMNS FROM $table_name";
$result = cherokee_mysql_query($query, $link);
$result['_dbslayer']['_generator'] = 'list_fields';
return $result;
// to use with: cherokee_mysql_field_flags(), cherokee_mysql_field_len(),
// cherokee_mysql_field_name(), cherokee_mysql_field_type()
}
/* mysql_list_processes - List MySQL processes */
function cherokee_mysql_list_processes ($link = NULL) {
if (!_dbslayer($link)) {
return _call('_mysql_list_fields', $database_name, $table_name, $link);
}
cherokee_mysql_select_db($database);
$query = "SHOW PROCESSLIST";
$result = cherokee_mysql_query($query, $link);
$params = _get_params($result);
if ($params['_idxres'] < 0)
return FALSE;
return $result;
}
/* mysql_list_tables - List tables in a MySQL database */
function cherokee_mysql_list_tables ($database, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_list_tables', $database, $link);
}
$query = "SHOW TABLES FROM $database";
$result = cherokee_mysql_query($query, $link);
$result['_dbslayer']['_generator'] = 'list_tables';
return $result;
// to use with: cherokee_mysql_tablename()
}
/* mysql_num_fields - Get number of fields in result */
function cherokee_mysql_num_fields ($result)
{
if (!_is_result($result))
return _mysql_num_fields ($result);
if (!isset($result["_dbslayer"]["_fields"]))
return FALSE;
return $result["_dbslayer"]["_fields"];
}
/* mysql_num_rows - Get number of rows in result */
function cherokee_mysql_num_rows ($result)
{
if (!_is_result($result))
return _mysql_num_rows ($result);
if (!isset($result["_dbslayer"]["_rows"]))
return FALSE;
return $result["_dbslayer"]["_rows"];
}
/* mysql_ping - Ping a server connection */
function cherokee_mysql_ping ($link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_ping', $link);
}
$proc = cherokee_mysql_list_processe($link);
if ($proc)
return TRUE;
return FALSE;
}
/* mysql_pconnect - Open a persistent connection to a MySQL server */
function &cherokee_mysql_pconnect ($host = NULL, $user = NULL,
$pass = NULL, $client_flags = 0)
{
global $_dbslayer;
$host = ($host) ? $host:$_dbslayer['db_host'];
$user = ($user) ? $user:$_dbslayer['db_user'];
$pass = ($pass) ? $pass:$_dbslayer['db_pass'];
if ($host != $_dbslayer['db_host'])
return _mysql_pconnect($host, $user, $pass, $client_flags);
$_dbslayer['db_host'] = $host;
$_dbslayer['db_user'] = $user;
$_dbslayer['db_pass'] = $pass;
return $_dbslayer;
}
/* mysql_query - Send a MySQL query */
function cherokee_mysql_query ($query, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_query', $query, $link);
}
global $_dbslayer;
if ($_dbslayer['db_name'])
$query = "use " . $_dbslayer['db_name'] . "; " . $query;
$url = $_dbslayer['db_host'] . "/" . rawurlencode($query);
if (!curl_setopt ($_dbslayer['curl'], CURLOPT_URL, $url)||
!curl_setopt ($_dbslayer['curl'], CURLOPT_RETURNTRANSFER, 1)) {
$err = "cannot set cURL CURLOPT_URL to " . $_dbslayer['db_host'].":" .
curl_error() . "(" . curl_errno() . ")";
throw new Exception($err);
}
$result = curl_exec ($_dbslayer['curl']);
if (!$result) {
$err = "curl_exec() failed for url " . $_dbslayer['db_host'] . ":" .
curl_error() . "(" . curl_errno() . ")";
throw new Exception($err);
}
eval("\$obj = $result;");
$dbs = array(
"_idxres" => count($obj) - 1, // points to the result field
"_idxrow" => 0, // row pointer
"_field_offset" => 0, // field_offset for mysql_fetch_field
"_last_access" => -1, // last accessed row
"_generator" => 'query'); // mysql originating function
$obj["_dbslayer"] = $dbs;
$_dbslayer['success'] = TRUE;
// Map results or errors
do {
$idx = $obj["_dbslayer"]["_idxres"];
$tmp = $obj[$idx];
if (isset($tmp["RESULT"])){
$obj["_dbslayer"]["_rows"] = count ($tmp["RESULT"]["ROWS"]);
$obj["_dbslayer"]["_fields"] = count ($tmp["RESULT"]["HEADER"]);
return $obj;
}
if (isset($tmp["SUCCESS"]) && $tmp["SUCCESS"] == 0) {
$_dbslayer['success'] = FALSE;
$_dbslayer['errno'] = $tmp["MYSQL_ERRNO"];
$_dbslayer['error'] = $tmp["MYSQL_ERROR"];
$_dbslayer['affected_rows'] = -1;
break;
}
if (isset($tmp["AFFECTED_ROWS"])) {
$_dbslayer['affected_rows'] = $tmp["AFFECTED_ROWS"];
}
if (isset($tmp["INSERT_ID"])) {
$_dbslayer['insert_id'] = $tmp["INSERT_ID"];
}
$obj["_dbslayer"]["_idxres"]--;
} while ($obj["_dbslayer"]["_idxres"] >=0);
// Statements returning resultset return a resource on success, or FALSE.
// Other type of SQL statements return TRUE on success or FALSE on error.
return $_dbslayer['success'];
}
/* mysql_real_escape_string - Escapes characters for use in a SQL statement */
/* Prepend backslashes to the : \x00, \n, \r, \, ', " and \x1a. */
function cherokee_mysql_real_escape_string ($unescaped_string, $link = NULL)
{
if (!_dbslayer($link)) {
return _call('_mysql_real_escape_string', $unescaped_string, $link);
}
return _mysql_escape_string($unescaped_string);
}
/* mysql_result - Get result data. Fields can be numbers or
* names. table.name notation not yet supported
*/
function cherokee_mysql_result (&$result, $row, $field = 0)
{
if (!_is_result($result))
return _mysql_result ($result, $row, $field);
if ($row < 0 || $row >= $result["_dbslayer"]["_rows"])
return NULL;
$idx = $result["_dbslayer"]["_idxres"];
$tmp = $result[$idx];
if (!is_numeric($field)) {
$i=0;