if (!defined('DITAN_ECS'))

{

die('Hacking attempt');

}

class cls_mysql

{

var $link_id    = NULL;

var $settings   = array();

var $queryCount = 0;

var $queryTime  = '';

var $queryLog   = array();

var $max_cache_time = 300; // 最大的缓存时间，以秒为单位

var $cache_data_dir = 'temp/query_caches/';

var $root_path      = '';

var $error_message  = array();

var $platform       = '';

var $version        = '';

var $dbhash         = '';

var $starttime      = 0;

var $timeline       = 0;

var $timezone       = 0;

// 事务指令数

protected $transTimes = 0;

var $mysql_config_cache_file_time = 0;

var $mysql_disable_cache_tables = array(); // 不允许被缓存的表，遇到将不会进行缓存

function __construct($dbhost, $dbuser, $dbpw, $dbname = '', $charset = 'gbk', $pconnect = 0, $quiet = 0)

{

$this->cls_mysql($dbhost, $dbuser, $dbpw, $dbname, $charset, $pconnect, $quiet);

}

function cls_mysql($dbhost, $dbuser, $dbpw, $dbname = '', $charset = 'gbk', $pconnect = 0, $quiet = 0)

{

if (defined('EC_CHARSET'))

{

$charset = strtolower(str_replace('-', '', EC_CHARSET));

}

if (defined('ROOT_PATH') && !$this->root_path)

{

$this->root_path = ROOT_PATH;

}

if ($quiet)

{

$this->connect($dbhost, $dbuser, $dbpw, $dbname, $charset, $pconnect, $quiet);

}

else

{

$this->settings = array(

'dbhost'   => $dbhost,

'dbuser'   => $dbuser,

'dbpw'     => $dbpw,

'dbname'   => $dbname,

'charset'  => $charset,

'pconnect' => $pconnect

);

}

}

function connect($dbhost, $dbuser, $dbpw, $dbname = '', $charset = 'utf8', $pconnect = 0, $quiet = 0)

{

if ($pconnect)

{

$this->link_id = new mysqli('p:'.$dbhost, $dbuser, $dbpw);

if ($this->link_id->connect_error)

{

if (!$quiet)

{

$this->ErrorMsg("Can't pConnect MySQL Server($dbhost)!");

}

return false;

}

}

else

{

$this->link_id = new mysqli($dbhost, $dbuser, $dbpw);

if ($this->link_id->connect_error)

{

if (!$quiet)

{

$this->ErrorMsg("Can't Connect MySQL Server($dbhost)!");

}

return false;

}

}

$this->dbhash  = md5($this->root_path . $dbhost . $dbuser . $dbpw . $dbname);

$this->version = $this->link_id->server_version;

/* 对字符集进行初始化 */

$this->link_id->set_charset($charset);

$this->link_id->query("SET sql_mode=''");

$sqlcache_config_file = $this->root_path . $this->cache_data_dir . 'sqlcache_config_file_' . $this->dbhash . '.php';

@include($sqlcache_config_file);

$this->starttime = time();

if ($this->max_cache_time && $this->starttime > $this->mysql_config_cache_file_time + $this->max_cache_time)

{

if ($dbhost != '.')

{

$result = $this->link_id->query("SHOW VARIABLES LIKE 'basedir'");

$row = $result->fetch_array(MYSQLI_ASSOC);

$result->free();

if (!empty($row['Value']{1}) && $row['Value']{1} == ':' && !empty($row['Value']{2}) && $row['Value']{2} == "/")

{

$this->platform = 'WINDOWS';

}

else

{

$this->platform = 'OTHER';

}

}

else

{

$this->platform = 'WINDOWS';

}

if ($this->platform == 'OTHER' &&

($dbhost != '.' && strtolower($dbhost) != 'localhost:3306' && $dbhost != '127.0.0.1:3306') ||

date_default_timezone_get() == 'UTC')

{

$result = $this->link_id->query("SELECT UNIX_TIMESTAMP() AS timeline, UNIX_TIMESTAMP('" . date('Y-m-d H:i:s', $this->starttime) . "') AS timezone");

$row = $result->fetch_array(MYSQLI_ASSOC);

$result->free();

if ($dbhost != '.' && strtolower($dbhost) != 'localhost:3306' && $dbhost != '127.0.0.1:3306')

{

$this->timeline = $this->starttime - $row['timeline'];

}

if (date_default_timezone_get() == 'UTC')

{

$this->timezone = $this->starttime - $row['timezone'];

}

}

$content = '

'$this->mysql_config_cache_file_time = ' . $this->starttime . ";\r\n" .

'$this->timeline = ' . $this->timeline . ";\r\n" .

'$this->timezone = ' . $this->timezone . ";\r\n" .

'$this->platform = ' . "'" . $this->platform . "';\r\n?" . '>';

@file_put_contents($sqlcache_config_file, $content);

}

/* 选择数据库 */

if ($dbname)

{

if ($this->link_id->select_db($dbname) === false )

{

if (!$quiet)

{

$this->ErrorMsg("Can't select MySQL database($dbname)!");

}

return false;

}

else

{

return true;

}

}

else

{

return true;

}

}

function select_database($dbname)

{

return $this->link_id->select_db($dbname);

}

function set_mysql_charset($charset)

{

if (in_array(strtolower($charset), array('gbk', 'big5', 'utf-8', 'utf8')))

{

$charset = str_replace('-', '', $charset);

}

$this->link_id->set_charset($charset);

}

function fetch_array($query, $result_type = MYSQLI_ASSOC)

{

$row = $query->fetch_array($result_type);

$query->free();

return $row;

}

function query($sql, $type = '')

{

if ($this->link_id === NULL)

{

$this->connect($this->settings['dbhost'], $this->settings['dbuser'], $this->settings['dbpw'], $this->settings['dbname'], $this->settings['charset'], $this->settings['pconnect']);

$this->settings = array();

}

if ($this->queryCount++ <= 99)

{

$this->queryLog[] = $sql;

}

if ($this->queryTime == '')

{

if (PHP_VERSION >= '5.0.0')

{

$this->queryTime = microtime(true);

}

else

{

$this->queryTime = microtime();

}

}

/* 当当前的时间大于类初始化时间的时候，自动执行 ping 这个自动重新连接操作 */

if (time() > $this->starttime + 1)

{

$this->link_id->ping();

}

if (!($query = $this->link_id->query($sql)) && $type != 'SILENT')

{

$this->error_message[]['message'] = 'MySQL Query Error';

$this->error_message[]['sql'] = $sql;

$this->error_message[]['error'] = $this->link_id->error;

$this->error_message[]['errno'] = $this->link_id->errno;

$this->ErrorMsg();

return false;

}

if (defined('DEBUG_MODE') && (DEBUG_MODE & 8) == 8)

{

$logfilename = $this->root_path . DATA_DIR . '/mysql_query_' . $this->dbhash . '_' . date('Y_m_d') . '.log';

$str = $sql . "\n\n";

if (PHP_VERSION >= '5.0')

{

file_put_contents($logfilename, $str, FILE_APPEND);

}

else

{

$fp = @fopen($logfilename, 'ab+');

if ($fp)

{

fwrite($fp, $str);

fclose($fp);

}

}

}

return $query;

}

function affected_rows()

{

return $this->link_id->affected_rows;

}

function error()

{

return $this->link_id->error;

}

function errno()

{

return $this->link_id->errno;

}

function result($query, $row)

{

$query->data_seek($row);

$result = $query->fetch_row();

$query->free();

return $result;

}

function num_rows($query)

{

return $query->num_rows;

}

function num_fields($query)

{

return $this->link_id->field_count;

}

function free_result($query)

{

return $query->free();

}

function insert_id()

{

return $this->link_id->insert_id;

}

function fetchRow($query)

{

return $query->fetch_assoc();

}

function fetch_fields($query)

{

return $query->fetch_field();

}

function version()

{

return $this->version;

}

function ping()

{

return $this->link_id->ping();

}

function escape_string($unescaped_string)

{

return $this->link_id->real_escape_string($unescaped_string);

}

function close()

{

return $this->link_id->close();

}

function ErrorMsg($message = '', $sql = '')

{

if ($message)

{

echo "DTXB info: $message\n\n
";

//print('http://faq.comsenz.com/');

}

else

{

echo "MySQL server error report:";

print_r($this->error_message);

//echo "error_message[2]['error']) . "' target='_blank'>http://faq.comsenz.com/";

}

exit;

}

/* 仿真 Adodb 函数 */

function selectLimit($sql, $num, $start = 0)

{

if ($start == 0)

{

$sql .= ' LIMIT ' . $num;

}

else

{

$sql .= ' LIMIT ' . $start . ', ' . $num;

}

return $this->query($sql);

}

function getOne($sql, $limited = false)

{

if ($limited == true)

{

$sql = trim($sql . ' LIMIT 1');

}

$res = $this->query($sql);

if ($res !== false)

{

$row = $res->fetch_row();

$res->free();

if ($row !== false)

{

return $row[0];

}

else

{

return '';

}

}

else

{

return false;

}

}

function getOneCached($sql, $cached = 'FILEFIRST')

{

$sql = trim($sql . ' LIMIT 1');

$cachefirst = ($cached == 'FILEFIRST' || ($cached == 'MYSQLFIRST' && $this->platform != 'WINDOWS')) && $this->max_cache_time;

if (!$cachefirst)

{

return $this->getOne($sql, true);

}

else

{

$result = $this->getSqlCacheData($sql, $cached);

if (empty($result['storecache']) == true)

{

return $result['data'];

}

}

$arr = $this->getOne($sql, true);

if ($arr !== false && $cachefirst)

{

$this->setSqlCacheData($result, $arr);

}

return $arr;

}

function getAll($sql)

{

$res = $this->query($sql);

if ($res !== false)

{

$arr = $res->fetch_all(MYSQLI_ASSOC);

$res->free();

return $arr;

}

else

{

return false;

}

}

function getAllCached($sql, $cached = 'FILEFIRST')

{

$cachefirst = ($cached == 'FILEFIRST' || ($cached == 'MYSQLFIRST' && $this->platform != 'WINDOWS')) && $this->max_cache_time;

if (!$cachefirst)

{

return $this->getAll($sql);

}

else

{

$result = $this->getSqlCacheData($sql, $cached);

if (empty($result['storecache']) == true)

{

return $result['data'];

}

}

$arr = $this->getAll($sql);

if ($arr !== false && $cachefirst)

{

$this->setSqlCacheData($result, $arr);

}

return $arr;

}

function getRow($sql, $limited = false)

{

if ($limited == true)

{

$sql = trim($sql . ' LIMIT 1');

}

$res = $this->query($sql);

if ($res !== false)

{

$result = $res->fetch_assoc();

$res->free();

return $result;

}

else

{

return false;

}

}

function getRowCached($sql, $cached = 'FILEFIRST')

{

$cachefirst = ($cached == 'FILEFIRST' || ($cached == 'MYSQLFIRST' && $this->platform != 'WINDOWS')) && $this->max_cache_time;

if (!$cachefirst)

{

return $this->getRow($sql, true);

}

else

{

$result = $this->getSqlCacheData($sql, $cached);

if (empty($result['storecache']) == true)

{

return $result['data'];

}

}

$arr = $this->getRow($sql, true);

if ($arr !== false && $cachefirst)

{

$this->setSqlCacheData($result, $arr);

}

return $arr;

}

function getCol($sql)

{

$res = $this->query($sql);

if ($res !== false)

{

$arr = array();

while ($row = $res->fetch_row())

{

$arr[] = $row[0];

}

$res->free();

return $arr;

}

else

{

return false;

}

}

function getColCached($sql, $cached = 'FILEFIRST')

{

$cachefirst = ($cached == 'FILEFIRST' || ($cached == 'MYSQLFIRST' && $this->platform != 'WINDOWS')) && $this->max_cache_time;

if (!$cachefirst)

{

return $this->getCol($sql);

}

else

{

$result = $this->getSqlCacheData($sql, $cached);

if (empty($result['storecache']) == true)

{

return $result['data'];

}

}

$arr = $this->getCol($sql);

if ($arr !== false && $cachefirst)

{

$this->setSqlCacheData($result, $arr);

}

return $arr;

}

function autoExecute($table, $field_values, $mode = 'INSERT', $where = '', $querymode = '')

{

$field_names = $this->getCol('DESC ' . $table);

$sql = '';

if ($mode == 'INSERT')

{

$fields = $values = array();

foreach ($field_names AS $value)

{

if (array_key_exists($value, $field_values) == true)

{

$fields[] = $value;

$values[] = "'" . $field_values[$value] . "'";

}

}

if (!empty($fields))

{

$sql = 'INSERT INTO ' . $table . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';

}

}

else

{

$sets = array();

foreach ($field_names AS $value)

{

if (array_key_exists($value, $field_values) == true)

{

$sets[] = $value . " = '" . $field_values[$value] . "'";

}

}

if (!empty($sets))

{

$sql = 'UPDATE ' . $table . ' SET ' . implode(', ', $sets) . ' WHERE ' . $where;

}

}

if ($sql)

{

return $this->query($sql, $querymode);

}

else

{

return false;

}

}

function autoReplace($table, $field_values, $update_values, $where = '', $querymode = '')

{

$field_descs = $this->getAll('DESC ' . $table);

$primary_keys = array();

foreach ($field_descs AS $value)

{

$field_names[] = $value['Field'];

if ($value['Key'] == 'PRI')

{

$primary_keys[] = $value['Field'];

}

}

$fields = $values = array();

foreach ($field_names AS $value)

{

if (array_key_exists($value, $field_values) == true)

{

$fields[] = $value;

$values[] = "'" . $field_values[$value] . "'";

}

}

$sets = array();

foreach ($update_values AS $key => $value)

{

if (array_key_exists($key, $field_values) == true)

{

if (is_int($value) || is_float($value))

{

$sets[] = $key . ' = ' . $key . ' + ' . $value;

}

else

{

$sets[] = $key . " = '" . $value . "'";

}

}

}

$sql = '';

if (empty($primary_keys))

{

if (!empty($fields))

{

$sql = 'INSERT INTO ' . $table . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';

}

}

else

{

if ($this->version() >= '4.1')

{

if (!empty($fields))

{

$sql = 'INSERT INTO ' . $table . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';

if (!empty($sets))

{

$sql .=  'ON DUPLICATE KEY UPDATE ' . implode(', ', $sets);

}

}

}

else

{

if (empty($where))

{

$where = array();

foreach ($primary_keys AS $value)

{

if (is_numeric($value))

{

$where[] = $value . ' = ' . $field_values[$value];

}

else

{

$where[] = $value . " = '" . $field_values[$value] . "'";

}

}

$where = implode(' AND ', $where);

}

if ($where && (!empty($sets) || !empty($fields)))

{

if (intval($this->getOne("SELECT COUNT(*) FROM $table WHERE $where")) > 0)

{

if (!empty($sets))

{

$sql = 'UPDATE ' . $table . ' SET ' . implode(', ', $sets) . ' WHERE ' . $where;

}

}

else

{

if (!empty($fields))

{

$sql = 'REPLACE INTO ' . $table . ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';

}

}

}

}

}

if ($sql)

{

return $this->query($sql, $querymode);

}

else

{

return false;

}

}

function setMaxCacheTime($second)

{

$this->max_cache_time = $second;

}

function getMaxCacheTime()

{

return $this->max_cache_time;

}

function getSqlCacheData($sql, $cached = '')

{

$sql = trim($sql);

$result = array();

$result['filename'] = $this->root_path . $this->cache_data_dir . 'sqlcache_' . abs(crc32($this->dbhash . $sql)) . '_' . md5($this->dbhash . $sql) . '.php';

$data = @file_get_contents($result['filename']);

if (isset($data{23}))

{

$filetime = substr($data, 13, 10);

$data     = substr($data, 23);

if (($cached == 'FILEFIRST' && time() > $filetime + $this->max_cache_time) || ($cached == 'MYSQLFIRST' && $this->table_lastupdate($this->get_table_name($sql)) > $filetime))

{

$result['storecache'] = true;

}

else

{

$result['data'] = @unserialize($data);

if ($result['data'] === false)

{

$result['storecache'] = true;

}

else

{

$result['storecache'] = false;

}

}

}

else

{

$result['storecache'] = true;

}

return $result;

}

function setSqlCacheData($result, $data)

{

if ($result['storecache'] === true && $result['filename'])

{

@file_put_contents($result['filename'], '<?php exit;?>' . time() . serialize($data));

clearstatcache();

}

}

/* 获取 SQL 语句中最后更新的表的时间，有多个表的情况下，返回最新的表的时间 */

function table_lastupdate($tables)

{

if ($this->link_id === NULL)

{

$this->connect($this->settings['dbhost'], $this->settings['dbuser'], $this->settings['dbpw'], $this->settings['dbname'], $this->settings['charset'], $this->settings['pconnect']);

$this->settings = array();

}

$lastupdatetime = '0000-00-00 00:00:00';

$tables = str_replace('`', '', $tables);

$this->mysql_disable_cache_tables = str_replace('`', '', $this->mysql_disable_cache_tables);

foreach ($tables AS $table)

{

if (in_array($table, $this->mysql_disable_cache_tables) == true)

{

$lastupdatetime = '2037-12-31 23:59:59';

break;

}

if (strstr($table, '.') != NULL)

{

$tmp = explode('.', $table);

$sql = 'SHOW TABLE STATUS FROM `' . trim($tmp[0]) . "` LIKE '" . trim($tmp[1]) . "'";

}

else

{

$sql = "SHOW TABLE STATUS LIKE '" . trim($table) . "'";

}

$result = $this->link_id->query($sql);

$row = $result->fetch_assoc();

if ($row['Update_time'] > $lastupdatetime)

{

$lastupdatetime = $row['Update_time'];

}

}

$lastupdatetime = strtotime($lastupdatetime) - $this->timezone + $this->timeline;

return $lastupdatetime;

}

function get_table_name($query_item)

{

$query_item = trim($query_item);

$table_names = array();

/* 判断语句中是不是含有 JOIN */

if (stristr($query_item, ' JOIN ') == '')

{

/* 解析一般的 SELECT FROM 语句 */

if (preg_match('/^SELECT.*?FROM\s*((?:`?\w+`?\s*\.\s*)?`?\w+`?(?:(?:\s*AS)?\s*`?\w+`?)?(?:\s*,\s*(?:`?\w+`?\s*\.\s*)?`?\w+`?(?:(?:\s*AS)?\s*`?\w+`?)?)*)/is', $query_item, $table_names))

{

$table_names = preg_replace('/((?:`?\w+`?\s*\.\s*)?`?\w+`?)[^,]*/', '\1', $table_names[1]);

return preg_split('/\s*,\s*/', $table_names);

}

}

else

{

/* 对含有 JOIN 的语句进行解析 */

if (preg_match('/^SELECT.*?FROM\s*((?:`?\w+`?\s*\.\s*)?`?\w+`?)(?:(?:\s*AS)?\s*`?\w+`?)?.*?JOIN.*$/is', $query_item, $table_names))

{

$other_table_names = array();

preg_match_all('/JOIN\s*((?:`?\w+`?\s*\.\s*)?`?\w+`?)\s*/i', $query_item, $other_table_names);

return array_merge(array($table_names[1]), $other_table_names[1]);

}

}

return $table_names;

}

/* 设置不允许进行缓存的表 */

function set_disable_cache_tables($tables)

{

if (!is_array($tables))

{

$tables = explode(',', $tables);

}

foreach ($tables AS $table)

{

$this->mysql_disable_cache_tables[] = $table;

}

array_unique($this->mysql_disable_cache_tables);

}

/**

+----------------------------------------------------------

* 启动事务

+----------------------------------------------------------

* @access public

+----------------------------------------------------------

* @return void

+----------------------------------------------------------

*/

public function startTrans() {

//$this->initConnect(true);

if ( !$this->link_id ) return false;

//数据rollback 支持

if ($this->transTimes == 0) {

$this->link_id->autocommit(FALSE);

}

$this->transTimes++;

return ;

}

/**

+----------------------------------------------------------

* 用于非自动提交状态下面的查询提交

+----------------------------------------------------------

* @access public

+----------------------------------------------------------

* @return boolen

+----------------------------------------------------------

*/

public function commit()

{

if ($this->transTimes > 0) {

$result = $this->link_id->commit();

$this->transTimes = 0;

if(!$result){

$this->error_message[]['message'] = 'MySQL Query Error';

$this->error_message[]['sql'] = $sql;

$this->error_message[]['error'] = $this->link_id->error;

$this->error_message[]['errno'] = $this->link_id->errno;

$this->ErrorMsg();

return false;

}

}

return true;

}

/**

+----------------------------------------------------------

* 事务回滚

+----------------------------------------------------------

* @access public

+----------------------------------------------------------

* @return boolen

+----------------------------------------------------------

*/

public function rollback()

{

if ($this->transTimes > 0) {

$result = $this->link_id->rollback();

$this->transTimes = 0;

if(!$result){

$this->error_message[]['message'] = 'MySQL Query Error';

$this->error_message[]['sql'] = $sql;

$this->error_message[]['error'] = $this->link_id->error;

$this->error_message[]['errno'] = $this->link_id->errno;

$this->ErrorMsg();

return false;

}

}

return true;

}

}