+ * define('USE_MYSQL', false);
+ *
+ */
+if (defined('USE_MYSQL') && USE_MYSQL) return;
+
+function pdo_log_error($message, $data = null) {
if (strpos($_SERVER['SCRIPT_NAME'], 'wp-admin') !== false) {
$admin_dir = '';
@@ -24,7 +46,7 @@ function pdo_log_erro($message, $data = null) {
+ * LOG(X)
+ *
+ * Used with two arguments, it returns the natural logarithm of X base B.
+ *
+ * LOG(B, X)
+ *
+ * In this case, it returns the value of log(X) / log(B).
+ *
+ * Used without an argument, it returns false. This returned value will be
+ * rewritten to 0, because SQLite doesn't understand true/false value.
+ *
+ * @param integer representing the base of the logarithm, which is optional.
+ * @param double value to turn into logarithm.
+ * @return double | NULL
+ */
public function log() {
$numArgs = func_num_args();
if ($numArgs == 1) {
@@ -307,18 +529,36 @@ class PDOSQLiteUDFS {
$arg2 = func_get_arg(1);
return log($arg1)/log($arg2);
} else {
- return false;
+ return null;
}
}
-
- public function least() {
- $arr = func_get_args();
- return min($arr);
- }
-
/**
- * These two functions are meaningless in SQLite
- * So we return meaningless statement and do nothing
+ * Method to emulate MySQL LEAST() function.
+ *
+ * This function rewrites the function name to SQLite compatible function name.
+ *
+ * @return mixed
+ */
+ public function least() {
+ $arg_list = func_get_args();
+ return "min($arg_list)";
+ }
+ /**
+ * Method to emulate MySQL GREATEST() function.
+ *
+ * This function rewrites the function name to SQLite compatible function name.
+ *
+ * @return mixed
+ */
+ public function greatest() {
+ $arg_list = func_get_args();
+ return "max($arg_list)";
+ }
+ /**
+ * Method to dummy out MySQL GET_LOCK() function.
+ *
+ * This function is meaningless in SQLite, so we do nothing.
+ *
* @param string $name
* @param integer $timeout
* @return string
@@ -326,39 +566,75 @@ class PDOSQLiteUDFS {
public function get_lock($name, $timeout) {
return '1=1';
}
+ /**
+ * Method to dummy out MySQL RELEASE_LOCK() function.
+ *
+ * This function is meaningless in SQLite, so we do nothing.
+ *
+ * @param string $name
+ * @return string
+ */
public function release_lock($name) {
return '1=1';
}
-
/**
- * MySQL aliases for upper and lower functions
- * @param unknown $string
- * @return string
+ * Method to emulate MySQL UCASE() function.
+ *
+ * This is MySQL alias for upper() function. This function rewrites it
+ * to SQLite compatible name upper().
+ *
+ * @param string
+ * @return string SQLite compatible function name.
*/
public function ucase($string) {
return "upper($string)";
}
+ /**
+ * Method to emulate MySQL LCASE() function.
+ *
+ * This is MySQL alias for lower() function. This function rewrites it
+ * to SQLite compatible name lower().
+ *
+ * @param string
+ * @return string SQLite compatible function name.
+ */
public function lcase($string) {
return "lower($string)";
}
-
/**
- * MySQL aliases for INET_NTOA and INET_ATON functions
- * @param unsigned integer, string respectively
- * @return string, unsigned integer respectively
+ * Method to emulate MySQL INET_NTOA() function.
+ *
+ * This function gets 4 or 8 bytes integer and turn it into the network address.
+ *
+ * @param unsigned long integer
+ * @return string
*/
public function inet_ntoa($num) {
return long2ip($num);
}
+ /**
+ * Method to emulate MySQL INET_ATON() function.
+ *
+ * This function gets the network address and turns it into integer.
+ *
+ * @param string
+ * @return unsigned long integer
+ */
public function inet_aton($addr) {
$int_data = ip2long($addr);
$unsigned_int_data = sprintf('%u', $address);
return $unsigned_int_data;
}
-
/**
- * MySQL aliase for DATEDIFF function
- * @param string, string
+ * Method to emulate MySQL DATEDIFF() function.
+ *
+ * This function compares two dates value and returns the difference.
+ *
+ * PHP 5.3.2 has a serious bug in DateTime::diff(). So if users' PHP is that version,
+ * we don't use that function. See https://bugs.php.net/bug.php?id=51184.
+ *
+ * @param string start
+ * @param string end
* @return string
*/
public function datediff($start, $end) {
@@ -368,7 +644,16 @@ class PDOSQLiteUDFS {
return $interval;
}
/**
- * emulates MySQL LOCATE() function
+ * Method to emulate MySQL LOCATE() function.
+ *
+ * This function returns the position if $substr is found in $str. If not,
+ * it returns 0. If mbstring extension is loaded, mb_strpos() function is
+ * used.
+ *
+ * @param string needle
+ * @param string haystack
+ * @param integer position
+ * @return integer
*/
public function locate($substr, $str, $pos = 0) {
if (!extension_loaded('mbstring')) {
@@ -385,5 +670,46 @@ class PDOSQLiteUDFS {
}
}
}
+ /**
+ * Method to return GMT date in the string format.
+ *
+ * @param none
+ * @return string formatted GMT date 'dddd-mm-dd'
+ */
+ public function utc_date() {
+ return gmdate('Y-m-d', time());
+ }
+ /**
+ * Method to return GMT time in the string format.
+ *
+ * @param none
+ * @return string formatted GMT time '00:00:00'
+ */
+ public function utc_time() {
+ return gmdate('H:i:s', time());
+ }
+ /**
+ * Method to return GMT time stamp in the string format.
+ *
+ * @param none
+ * @return string formatted GMT timestamp 'yyyy-mm-dd 00:00:00'
+ */
+ public function utc_timestamp() {
+ return gmdate('Y-m-d H:i:s', time());
+ }
+ /**
+ * Method to return MySQL version.
+ *
+ * This function only returns the current newest version number of MySQL,
+ * because it is meaningless for SQLite database.
+ *
+ * @param none
+ * @return string representing the version number: major_version.minor_version
+ */
+ public function version() {
+// global $required_mysql_version;
+// return $required_mysql_version;
+ return '5.5';
+ }
}
?>
\ No newline at end of file
diff --git a/functions.php b/functions.php
index 8cb715c..7dd6247 100644
--- a/functions.php
+++ b/functions.php
@@ -1,24 +1,50 @@
+ * new PDOSQLiteUDFS(ref_to_pdo_obj);
+ *
+ *
+ * This automatically enables ref_to_pdo_obj to replace the function in the SQL statement
+ * to the ones defined here.
*/
class PDOSQLiteUDFS {
+ /**
+ * The class constructor
+ *
+ * Initializes the use defined functions to PDO object with PDO::sqliteCreateFunction().
+ *
+ * @param reference to PDO object $pdo
+ */
public function __construct(&$pdo){
foreach ($this->functions as $f=>$t) {
$pdo->sqliteCreateFunction($f, array($this, $t));
}
}
-
+ /**
+ * array to define MySQL function => function defined with PHP.
+ *
+ * Replaced functions must be public.
+ *
+ * @var associative array
+ */
private $functions = array(
'month' => 'month',
'year' => 'year',
@@ -42,7 +68,6 @@ class PDOSQLiteUDFS {
'subdate' => 'date_sub',
'localtime' => 'now',
'localtimestamp' => 'now',
- //'date'=>'date',
'isnull' => 'isnull',
'if' => '_if',
'regexpp' => 'regexp',
@@ -50,7 +75,7 @@ class PDOSQLiteUDFS {
'field' => 'field',
'log' => 'log',
'least' => 'least',
- 'replace' => 'replace',
+ 'greatest' => 'greatest',
'get_lock' => 'get_lock',
'release_lock' => 'release_lock',
'ucase' => 'ucase',
@@ -58,110 +83,245 @@ class PDOSQLiteUDFS {
'inet_ntoa' => 'inet_ntoa',
'inet_aton' => 'inet_aton',
'datediff' => 'datediff',
- 'locate' => 'locate'
+ 'locate' => 'locate',
+ 'utc_date' => 'utc_date',
+ 'utc_time' => 'utc_time',
+ 'utc_timestamp' => 'utc_timestamp',
+ 'version' => 'version'
);
-
+ /**
+ * Method to extract the month value from the date.
+ *
+ * @param string representing the date formated as 0000-00-00.
+ * @return string representing the number of the month between 1 and 12.
+ */
public function month($field){
$t = strtotime($field);
return date('n', $t);
}
+ /**
+ * Method to extract the year value from the date.
+ *
+ * @param string representing the date formated as 0000-00-00.
+ * @return string representing the number of the year.
+ */
public function year($field){
$t = strtotime($field);
return date('Y', $t);
}
+ /**
+ * Method to extract the day value from the date.
+ *
+ * @param string representing the date formated as 0000-00-00.
+ * @return string representing the number of the day of the month from 1 and 31.
+ */
public function day($field){
$t = strtotime($field);
return date('j', $t);
}
+ /**
+ * Method to return the unix timestamp.
+ *
+ * Used without an argument, it returns PHP time() function (total seconds passed
+ * from '1970-01-01 00:00:00' GMT). Used with the argument, it changes the value
+ * to the timestamp.
+ *
+ * @param string representing the date formated as '0000-00-00 00:00:00'.
+ * @return number of unsigned integer
+ */
public function unix_timestamp($field = null){
return is_null($field) ? time() : strtotime($field);
}
+ /**
+ * Method to emulate MySQL SECOND() function.
+ *
+ * @param string representing the time formated as '00:00:00'.
+ * @return number of unsigned integer
+ */
public function second($field){
$t = strtotime($field);
return intval( date("s", $t) );
}
+ /**
+ * Method to emulate MySQL MINUTE() function.
+ *
+ * @param string representing the time formated as '00:00:00'.
+ * @return number of unsigned integer
+ */
public function minute($field){
$t = strtotime($field);
return intval(date("i", $t));
}
+ /**
+ * Method to emulate MySQL HOUR() function.
+ *
+ * @param string representing the time formated as '00:00:00'.
+ * @return number
+ */
public function hour($time){
list($hours, $minutes, $seconds) = explode(":", $time);
return intval($hours);
}
+ /**
+ * Method to emulate MySQL FROM_UNIXTIME() function.
+ *
+ * @param integer of unix timestamp
+ * @param string to indicate the way of formatting(optional)
+ * @return string formatted as '0000-00-00 00:00:00'.
+ */
public function from_unixtime($field, $format=null){
// $field is a timestamp
//convert to ISO time
$date = date("Y-m-d H:i:s", $field);
//now submit to dateformat
-
return is_null($format) ? $date : $self->dateformat($date, $format);
}
+ /**
+ * Method to emulate MySQL NOW() function.
+ *
+ * @return string representing current time formatted as '0000-00-00 00:00:00'.
+ */
public function now(){
return date("Y-m-d H:i:s");
}
+ /**
+ * Method to emulate MySQL CURDATE() function.
+ *
+ * @return string representing current time formatted as '0000-00-00'.
+ */
public function curdate() {
return date("Y-m-d");
}
+ /**
+ * Method to emulate MySQL CHAR_LENGTH() function.
+ *
+ * @param string
+ * @return unsigned integer for the length of the argument.
+ */
public function char_length($field){
return strlen($field);
}
+ /**
+ * Method to emulate MySQL MD5() function.
+ *
+ * @param string
+ * @return string of the md5 hash value of the argument.
+ */
public function md5($field){
return md5($field);
}
+ /**
+ * Method to emulate MySQL RAND() function.
+ *
+ * SQLite does have a random generator, but it is called RANDOM() and returns random
+ * number between -9223372036854775808 and +9223372036854775807. So we substitute it
+ * with PHP random generator.
+ *
+ * This function uses mt_rand() which is four times faster than rand() and returns
+ * the random number between 0 and 1.
+ *
+ * @return unsigned integer
+ */
public function rand(){
- return rand(0,1);
+ return mt_rand(0, 1);
}
+ /**
+ * Method to emulate MySQL SUBSTRING() function.
+ *
+ * This function rewrites the function name to SQLite compatible substr(),
+ * which can manipulate UTF-8 characters.
+ *
+ * @param string $text
+ * @param integer $pos representing the start point.
+ * @param integer $len representing the length of the substring(optional).
+ * @return string
+ */
public function substring($text, $pos, $len=null){
- if (is_null($len)) return substr($text, $pos-1);
- else return substr($text, $pos-1, $len);
+ return "substr($text, $pos, $len)";
}
+ /**
+ * Method to emulate MySQL DATEFORMAT() function.
+ *
+ * @param string date formatted as '0000-00-00' or datetime as '0000-00-00 00:00:00'.
+ * @param string $format
+ * @return string formatted according to $format
+ */
public function dateformat($date, $format){
$mysql_php_dateformats = array ( '%a' => 'D', '%b' => 'M', '%c' => 'n', '%D' => 'jS', '%d' => 'd', '%e' => 'j', '%H' => 'H', '%h' => 'h', '%I' => 'h', '%i' => 'i', '%j' => 'z', '%k' => 'G', '%l' => 'g', '%M' => 'F', '%m' => 'm', '%p' => 'A', '%r' => 'h:i:s A', '%S' => 's', '%s' => 's', '%T' => 'H:i:s', '%U' => 'W', '%u' => 'W', '%V' => 'W', '%v' => 'W', '%W' => 'l', '%w' => 'w', '%X' => 'Y', '%x' => 'o', '%Y' => 'Y', '%y' => 'y', );
- $t = strtotime($date);
+ $t = strtotime($date);
$format = strtr($format, $mysql_php_dateformats);
$output = date($format, $t);
return $output;
}
+ /**
+ * Method to emulate MySQL DATE_ADD() function.
+ *
+ * This function adds the time value of $interval expression to $date.
+ * $interval is a single quoted strings rewritten by SQLiteQueryDriver::rewrite_query().
+ * It is calculated in the private function deriveInterval().
+ *
+ * @param string $date representing the start date.
+ * @param string $interval representing the expression of the time to add.
+ * @return string date formated as '0000-00-00 00:00:00'.
+ */
public function date_add($date, $interval) {
$interval = $this->deriveInterval($interval);
switch (strtolower($date)) {
case "curdate()":
- $objDate = new Datetime($this->curdate());
+ $objDate = new Datetime($this->curdate());
$objDate->add(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d");
break;
case "now()":
- $objDate = new Datetime($this->now());
+ $objDate = new Datetime($this->now());
$objDate->add(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d H:i:s");
break;
default:
- $objDate = new Datetime($date);
+ $objDate = new Datetime($date);
$objDate->add(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d H:i:s");
}
return $returnval;
}
+ /**
+ * Method to emulate MySQL DATE_SUB() function.
+ *
+ * This function substracts the time value of $interval expression from $date.
+ * $interval is a single quoted strings rewritten by SQLiteQueryDriver::rewrite_query().
+ * It is calculated in the private function deriveInterval().
+ *
+ * @param string $date representing the start date.
+ * @param string $interval representing the expression of the time to substract.
+ * @return string date formated as '0000-00-00 00:00:00'.
+ */
public function date_sub($date, $interval) {
$interval = $this->deriveInterval($interval);
switch (strtolower($date)) {
case "curdate()":
- $objDate = new Datetime($this->curdate());
+ $objDate = new Datetime($this->curdate());
$objDate->sub(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d");
break;
case "now()":
- $objDate = new Datetime($this->now());
+ $objDate = new Datetime($this->now());
$objDate->sub(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d H:i:s");
break;
default:
- $objDate = new Datetime($date);
+ $objDate = new Datetime($date);
$objDate->sub(new DateInterval($interval));
$returnval = $objDate->format("Y-m-d H:i:s");
}
return $returnval;
}
+ /**
+ * Method to calculate the interval time between two dates value.
+ *
+ * @access private
+ * @param string $interval white space separated expression.
+ * @return string representing the time to add or substract.
+ */
private function deriveInterval($interval) {
$interval = trim(substr(trim($interval), 8));
$parts = explode(' ', $interval);
@@ -202,7 +362,7 @@ class PDOSQLiteUDFS {
return 'P' . $days . 'D' . 'T' . $hours . 'H' . $minutes . 'M';
break;
case "day_hour":
- $days = intval($_parts[0]);
+ $days = intval($_parts[0]);
$hours = intval($_parts[1]);
return 'P' . $days . 'D' . 'T' . $hours . 'H';
break;
@@ -212,28 +372,63 @@ class PDOSQLiteUDFS {
break;
}
}
-
+ /**
+ * Method to emulate MySQL DATE() function.
+ *
+ * @param string $date formatted as unix time.
+ * @return string formatted as '0000-00-00'.
+ */
public function date($date){
return date("Y-m-d", strtotime($date));
}
-
+ /**
+ * Method to emulate MySQL ISNULL() function.
+ *
+ * This function returns true if the argument is null, and true if not.
+ *
+ * @param various types $field
+ * @return boolean
+ */
public function isnull($field){
return is_null($field);
}
-
+ /**
+ * Method to emulate MySQL IF() function.
+ *
+ * As 'IF' is a reserved word for PHP, function name must be changed.
+ *
+ * @param unknonw $expression the statement to be evaluated as true or false.
+ * @param unknown $true statement or value returned if $expression is true.
+ * @param unknown $false statement or value returned if $expression is false.
+ * @return unknown
+ */
public function _if($expression, $true, $false){
return ($expression == true) ? $true : $false;
}
-
+ /**
+ * Method to emulate MySQL REGEXP() function.
+ *
+ * @param string $field haystack
+ * @param string $pattern: regular expression to match.
+ * @return integer 1 if matched, 0 if not matched.
+ */
public function regexp($field, $pattern){
$pattern = str_replace('/', '\/', $pattern);
$pattern = "/" . $pattern ."/i";
return preg_match ($pattern, $field);
}
-
+ /**
+ * Method to emulate MySQL CONCAT() function.
+ *
+ * SQLite does have CONCAT() function, but it has a different syntax from MySQL.
+ * So this function must be manipulated here.
+ *
+ * @param string
+ * @return NULL if the argument is null | string conatenated if the argument is given.
+ */
public function concat() {
$returnValue = "";
- $argsNum = func_num_args();
+ $argsNum = func_num_args();
$argsList = func_get_args();
for ($i = 0; $i < $argsNum; $i++) {
if (is_null($argsList[$i])) {
@@ -243,20 +438,51 @@ class PDOSQLiteUDFS {
}
return $returnValue;
}
-
+ /**
+ * Method to emulate MySQL FIELD() function.
+ *
+ * This function gets the list argument and compares the first item to all the others.
+ * If the same value is found, it returns the position of that value. If not, it
+ * returns 0.
+ *
+ * @param variable number of string, integer or double
+ * @return unsigned integer
+ */
public function field() {
$numArgs = func_num_args();
if ($numArgs < 2 or is_null(func_get_arg(0))) {
- return null;
+ return 0;
+ } else {
+ $arg_list = func_get_args();
}
- $arr = func_get_args();
- $searchString = strtolower(array_shift($arr));
+ $searchString = array_shift($arg_list);
for ($i = 0; $i < $numArgs-1; $i++) {
- if ($searchString === strtolower($arr[$i])) return $i + 1;
+ if ($searchString === strtolower($arg_list[$i])) {
+ return $i + 1;
+ }
}
- return null;
+ return 0;
}
-
+ /**
+ * Method to emulate MySQL LOG() function.
+ *
+ * Used with one argument, it returns the natural logarithm of X.
+ *
+ * LOG(X)
+ *
+ * Used with two arguments, it returns the natural logarithm of X base B.
+ *
+ * LOG(B, X)
+ *
+ * In this case, it returns the value of log(X) / log(B).
+ *
+ * Used without an argument, it returns false. This returned value will be
+ * rewritten to 0, because SQLite doesn't understand true/false value.
+ *
+ * @param integer representing the base of the logarithm, which is optional.
+ * @param double value to turn into logarithm.
+ * @return double | NULL
+ */
public function log() {
$numArgs = func_num_args();
if ($numArgs == 1) {
@@ -267,22 +493,36 @@ class PDOSQLiteUDFS {
$arg2 = func_get_arg(1);
return log($arg1)/log($arg2);
} else {
- return false;
+ return null;
}
}
-
+ /**
+ * Method to emulate MySQL LEAST() function.
+ *
+ * This function rewrites the function name to SQLite compatible function name.
+ *
+ * @return mixed
+ */
public function least() {
- $arr = func_get_args();
- return min($arr);
+ $arg_list = func_get_args();
+ return "min($arg_list)";
}
-
- public function replace($haystack, $needle, $replace) {
- return str_replace($needle, $replace, $haystack);
- }
-
/**
- * These two functions are meaningless in SQLite
- * So we return meaningless statement and do nothing
+ * Method to emulate MySQL GREATEST() function.
+ *
+ * This function rewrites the function name to SQLite compatible function name.
+ *
+ * @return mixed
+ */
+ public function greatest() {
+ $arg_list = func_get_args();
+ return "max($arg_list)";
+ }
+ /**
+ * Method to dummy out MySQL GET_LOCK() function.
+ *
+ * This function is meaningless in SQLite, so we do nothing.
+ *
* @param string $name
* @param integer $timeout
* @return string
@@ -290,30 +530,61 @@ class PDOSQLiteUDFS {
public function get_lock($name, $timeout) {
return '1=1';
}
+ /**
+ * Method to dummy out MySQL RELEASE_LOCK() function.
+ *
+ * This function is meaningless in SQLite, so we do nothing.
+ *
+ * @param string $name
+ * @return string
+ */
public function release_lock($name) {
return '1=1';
}
-
/**
- * MySQL aliases for upper and lower functions
- * @param $string
- * @return string
+ * Method to emulate MySQL UCASE() function.
+ *
+ * This is MySQL alias for upper() function. This function rewrites it
+ * to SQLite compatible name upper().
+ *
+ * @param string
+ * @return string SQLite compatible function name.
*/
public function ucase($string) {
return "upper($string)";
}
+ /**
+ * Method to emulate MySQL LCASE() function.
+ *
+ *
+ * This is MySQL alias for lower() function. This function rewrites it
+ * to SQLite compatible name lower().
+ *
+ * @param string
+ * @return string SQLite compatible function name.
+ */
public function lcase($string) {
return "lower($string)";
}
-
/**
- * MySQL aliases for INET_NTOA and INET_ATON functions
- * @param unsigned integer, string respectively
- * @return string, unsigned integer respectively
+ * Method to emulate MySQL INET_NTOA() function.
+ *
+ * This function gets 4 or 8 bytes integer and turn it into the network address.
+ *
+ * @param unsigned long integer
+ * @return string
*/
public function inet_ntoa($num) {
return long2ip($num);
}
+ /**
+ * Method to emulate MySQL INET_ATON() function.
+ *
+ * This function gets the network address and turns it into integer.
+ *
+ * @param string
+ * @return unsigned long integer
+ */
public function inet_aton($addr) {
$int_data = ip2long($addr);
$unsigned_int_data = sprintf('%u', $address);
@@ -321,28 +592,41 @@ class PDOSQLiteUDFS {
}
/**
- * MySQL aliase for DATEDIFF function
- * @param string, string
+ * Method to emulate MySQL DATEDIFF() function.
+ *
+ * This function compares two dates value and returns the difference.
+ *
+ * PHP 5.3.2 has a serious bug in DateTime::diff(). So if users' PHP is that version,
+ * we don't use that function. See https://bugs.php.net/bug.php?id=51184.
+ *
+ * @param string start
+ * @param string end
* @return string
*/
public function datediff($start, $end) {
- /* PHP 5.3.2 has a serious bug in DateTime::diff()
- * see https://bugs.php.net/bug.php?id=51184
- */
if (version_compare(PHP_VERSION, '5.3.2', '==')) {
$start_date = strtotime($start);
$end_date = strtotime($end);
- $interval = floor(($start_date - $end_date)/(3600*24));
+ $interval = floor(($start_date - $end_date)/(3600*24));
return $interval;
} else {
$start_date = new DateTime($start);
- $end_date = new DateTime($end);
- $interval = $end_date->diff($start_date, false);
+ $end_date = new DateTime($end);
+ $interval = $end_date->diff($start_date, false);
return $interval->format('%r%a');
}
}
/**
- * emulates MySQL LOCATE() function
+ * Method to emulate MySQL LOCATE() function.
+ *
+ * This function returns the position if $substr is found in $str. If not,
+ * it returns 0. If mbstring extension is loaded, mb_strpos() function is
+ * used.
+ *
+ * @param string needle
+ * @param string haystack
+ * @param integer position
+ * @return integer
*/
public function locate($substr, $str, $pos = 0) {
if (!extension_loaded('mbstring')) {
@@ -359,5 +643,46 @@ class PDOSQLiteUDFS {
}
}
}
+ /**
+ * Method to return GMT date in the string format.
+ *
+ * @param none
+ * @return string formatted GMT date 'dddd-mm-dd'
+ */
+ public function utc_date() {
+ return gmdate('Y-m-d', time());
+ }
+ /**
+ * Method to return GMT time in the string format.
+ *
+ * @param none
+ * @return string formatted GMT time '00:00:00'
+ */
+ public function utc_time() {
+ return gmdate('H:i:s', time());
+ }
+ /**
+ * Method to return GMT time stamp in the string format.
+ *
+ * @param none
+ * @return string formatted GMT timestamp 'yyyy-mm-dd 00:00:00'
+ */
+ public function utc_timestamp() {
+ return gmdate('Y-m-d H:i:s', time());
+ }
+ /**
+ * Method to return MySQL version.
+ *
+ * This function only returns the current newest version number of MySQL,
+ * because it is meaningless for SQLite database.
+ *
+ * @param none
+ * @return string representing the version number: major_version.minor_version
+ */
+ public function version() {
+// global $required_mysql_version;
+// return $required_mysql_version;
+ return '5.5';
+ }
}
?>
\ No newline at end of file
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..29d690a
--- /dev/null
+++ b/index.php
@@ -0,0 +1,2 @@
+'; + echo $server_message; + echo '
'; + } + return array('url' => $guessurl, 'user_id' => $user_id, 'password' => $user_password, 'password_message' => $message); } ?> \ No newline at end of file diff --git a/js/index.php b/js/index.php new file mode 100644 index 0000000..29d690a --- /dev/null +++ b/js/index.php @@ -0,0 +1,2 @@ +') diff --git a/js/sqlite.min.js b/js/sqlite.min.js new file mode 100644 index 0000000..a27987e --- /dev/null +++ b/js/sqlite.min.js @@ -0,0 +1 @@ +jQuery(document).ready(function($){function stripe(arg){$(arg).find("tr.alt").removeClass("alt");var $args=arg+" tbody";$($args).each(function(){$(this).children(":visible").has("td").filter(function(index){return 1==index%2}).addClass("alt")})}var $table=null,$headers=null;null!=document.getElementById("sqlite-table")?($table=$("#sqlite-table"),$headers=$table.find("thead th").slice(0,2)):null!=document.getElementById("plugins-table")?($table=$("#plugins-table"),$headers=$table.find("thead th").slice(0)):null!=document.getElementById("patch-files")?($table=$("#patch-files"),$headers=$table.find("thead th").slice(1)):null!=document.getElementById("backup-files")&&($table=$("#backup-files"),$headers=$table.find("thead th").slice(1)),$headers.wrapInner('').addClass("sort");var rows=$table.find("tbody > tr").get();$headers.bind("click",function(event){event.preventDefault();var $header=$(this),sortKey=$header.data("sort").key,sortDirection=1;$header.hasClass("sorted-asc")&&(sortDirection=-1),rows.sort(function(a,b){var keyA=$(a).data("table")[sortKey],keyB=$(b).data("table")[sortKey];return keyB>keyA?-sortDirection:keyA>keyB?sortDirection:0}),$headers.removeClass("sorted-asc sortd-desc"),$headers.addClass(1==sortDirection?"sorted-asc":"sorted-desc"),$.each(rows,function(index,row){$table.children("tbody").append(row)}),stripe("#plugins-table"),stripe("#sqlite-table"),stripe("#patch-files")}),stripe("#plugins-table"),stripe("#sys-info"),stripe("#sqlite-table"),stripe("#status"),stripe("#patch-files")}),jQuery(document).ready(function($){function stripe(arg){$(arg).find("tr.alt").removeClass("alt");var $args=arg+" tbody";$($args).each(function(){$(this).children(":visible").has("td").filter(function(index){return 1==index%2}).addClass("alt")})}var $table=$("#plugins-info"),$headers=$table.find("thead th").slice(0);$headers.wrapInner('').addClass("sort");var rows=$table.find("tbody > tr").get();$headers.bind("click",function(event){event.preventDefault();var $header=$(this),sortKey=$header.data("sort").key,sortDirection=1;$header.hasClass("sorted-asc")&&(sortDirection=-1),rows.sort(function(a,b){var keyA=$(a).data("table")[sortKey],keyB=$(b).data("table")[sortKey];return keyB>keyA?-sortDirection:keyA>keyB?sortDirection:0}),$headers.removeClass("sorted-asc sortd-desc"),$headers.addClass(1==sortDirection?"sorted-asc":"sorted-desc"),$.each(rows,function(index,row){$table.children("tbody").append(row)}),stripe("#plugins-info")}),stripe("#plugins-info")}); \ No newline at end of file diff --git a/languages/index.php b/languages/index.php new file mode 100644 index 0000000..29d690a --- /dev/null +++ b/languages/index.php @@ -0,0 +1,2 @@ +, 2013. +# FIRST AUTHORWe have been unable to "
"connect to the specified database.
The error message received was %s"
msgstr ""
-"
データベースに接続できませんでした。
エラーメッセージは、%sです。"
+"
データベースに接続できません。
エラーメッセージは、%s"
-#: pdoengine.class.php:80 pdoengine.class.php:96 schema.php:26
+#: pdoengine.class.php:82 pdoengine.class.php:98
msgid "Database connection error!
"
msgstr "データベース接続エラー!
"
-#: pdoengine.class.php:81 pdoengine.class.php:97 schema.php:27 schema.php:81
+#: pdoengine.class.php:83 pdoengine.class.php:99
+#, php-format
msgid "Error message is: %s"
-msgstr "エラーメッセージは: "
+msgstr "エラーメッセージ: %s"
-#: pdoengine.class.php:115
-msgid ""
-"Unable to create the required directory! Please check your server settings."
-msgstr ""
-"必要なディレクトリが作成できませんでした。サーバ設定を確認してください。"
-
-#: pdoengine.class.php:120 pdoengine.class.php:126
-msgid ""
-"Unable to create a file in the directory! Please check your server settings."
-msgstr ""
-"ディレクトリにファイルを作成できませんでした。サーバ設定を確認してください。"
-
-#: pdoengine.class.php:148
+#: pdoengine.class.php:156
#, php-format
msgid ""
"
Sorry, we cannot determine the type of query " "that is requested.
The query is %s
" msgstr "" -"申し訳ありません、要求されたクエリのタイプを決定できません。
クエリは%s" -"です。
" +"申し訳ありません。要求されたクエリのタイプを判別できませんでした。
" +"クエリ: %s
" -#: pdoengine.class.php:294 +#: pdoengine.class.php:315 #, php-format msgid "Problem preparing the PDO SQL Statement. Error was: %s" -msgstr "SQLステートメントの準備中に問題。エラーは： %s" +msgstr "PDO SQLステートメントを準備中に問題がありました。エラー: %s" -#: pdoengine.class.php:327 +#: pdoengine.class.php:372 #, php-format msgid "Error while executing query! Error message was: %s" -msgstr "クエリの実行中にエラー! エラーメッセージは: %s" +msgstr "クエリを実行中にエラーが発生しました。エラーメッセージ: %s" -#: pdoengine.class.php:381 +#: pdoengine.class.php:426 msgid "The query is too big to parse properly" -msgstr "クエリが長すぎて解析できません" +msgstr "クエリが長すぎてちゃんと解析できません" -#: pdoengine.class.php:583 +#: pdoengine.class.php:635 #, php-format msgid "Problem in creating table or index. Error was: %s" -msgstr "テーブルまたはインデックスを作成中に問題発生。エラーは: %s" +msgstr "テーブルかインデックスを作るときに問題がありました。エラー: %s" -#: pdoengine.class.php:626 +#: pdoengine.class.php:678 #, php-format msgid "Problem in executing alter query. Error was: %s" -msgstr "ALTERクエリを実行中に問題発生。エラーは: %s" - -#: schema.php:80 -#, php-format -msgid "" -"Error occured while creating tables or indexes...We have been unable to "
"connect to the specified database.
The error message received was %s"
msgstr ""
-#: pdoengine.class.php:80 pdoengine.class.php:96 schema.php:26
-msgid "Database connection error!
"
-msgstr ""
-
-#: pdoengine.class.php:81 pdoengine.class.php:97 schema.php:27 schema.php:81
-msgid "Error message is: %s"
-msgstr ""
-
-#: pdoengine.class.php:115
-msgid ""
-"Unable to create the required directory! Please check your server settings."
-msgstr ""
-
-#: pdoengine.class.php:120 pdoengine.class.php:126
-msgid ""
-"Unable to create a file in the directory! Please check your server settings."
-msgstr ""
-
-#: pdoengine.class.php:148
+#: pdoengine.class.php:291
#, php-format
msgid ""
"
Sorry, we cannot determine the type of query " "that is requested.
The query is %s
" msgstr "" -#: pdoengine.class.php:294 -#, php-format -msgid "Problem preparing the PDO SQL Statement. Error was: %s" -msgstr "" - -#: pdoengine.class.php:327 -#, php-format -msgid "Error while executing query! Error message was: %s" -msgstr "" - -#: pdoengine.class.php:381 -msgid "The query is too big to parse properly" -msgstr "" - -#: pdoengine.class.php:583 -#, php-format -msgid "Problem in creating table or index. Error was: %s" -msgstr "" - -#: pdoengine.class.php:626 -#, php-format -msgid "Problem in executing alter query. Error was: %s" -msgstr "" - -#: schema.php:80 -#, php-format -msgid "" -"Error occured while creating tables or indexes...Sorry, we cannot determine the type of query that is requested.
The query is %s
", 'sqlite-integration'), $query); $this->set_error(__LINE__, __FUNCTION__, $bailoutString); } switch (strtolower($this->query_type)) { + case 'set': + $this->return_value = false; + break; case 'foundrows': - $this->results = $this->found_rows_result; - $this->num_rows = count($this->results); - $this->found_rows_result = null; + $_column = array('FOUND_ROWS()' => ''); + $column = array(); + if (!is_null($this->found_rows_result)) { + $this->num_rows = $this->found_rows_result; + $_column['FOUND_ROWS()'] = $this->num_rows; +// foreach ($this->found_rows_result[0] as $key => $value) { +// $_column['FOUND_ROWS()'] = $value; +// } + $column[] = new ObjectArray($_column); + $this->results = $column; + $this->found_rows_result = null; + } break; case 'insert': if ($this->can_insert_multiple_rows) { @@ -181,12 +353,15 @@ class PDOEngine extends PDO { case 'show_variables': $result = $this->show_variables_workaround($query); break; + case 'showstatus': + $result = $this->show_status_workaround($query); + break; case 'drop_index': $pattern = '/^\\s*(DROP\\s*INDEX\\s*.*?)\\s*ON\\s*(.*)/im'; if (preg_match($pattern, $query, $match)) { - $drop_query = 'ALTER TABLE ' . trim($match[2]) . ' ' . trim($match[1]); - $this->query_type = 'alter'; - $result = $this->execute_alter_query($drop_query); + $drop_query = 'ALTER TABLE ' . trim($match[2]) . ' ' . trim($match[1]); + $this->query_type = 'alter'; + $result = $this->execute_alter_query($drop_query); $this->return_value = $result; } else { $this->return_value = false; @@ -195,7 +370,7 @@ class PDOEngine extends PDO { default: $engine = $this->prepare_engine($this->query_type); $this->rewritten_query = $engine->rewrite_query($query, $this->query_type); - $this->queries[] = "Rewritten: $this->rewritten_query"; + $this->queries[] = "Rewritten:\n$this->rewritten_query"; $this->extract_variables(); $statement = $this->prepare_query(); $this->execute_query($statement); @@ -207,33 +382,114 @@ class PDOEngine extends PDO { break; } if (defined('PDO_DEBUG') && PDO_DEBUG === true) { - file_put_contents(FQDBDIR . 'debug.txt', $this->get_debug_info(), FLIE_APPEND); + file_put_contents(FQDBDIR . 'debug.txt', $this->get_debug_info(), FILE_APPEND); } return $this->return_value; } - + /** + * Method to return inserted row id. + * + * @return unsigned integer + */ public function get_insert_id() { return $this->last_insert_id; } + /** + * Method to return the number of rows affected. + * + * @return unsigned integer + */ public function get_affected_rows() { return $this->affected_rows; } + /** + * Method to return the queried column names. + * + * These data are meaningless for SQLite. So they are dummy emulating + * MySQL columns data. + * + * @return array of the object + */ public function get_columns() { - return $this->column_names; + if (!empty($this->results)) { + $primary_key = array( + 'meta_id', 'comment_ID', 'link_ID', 'option_id', + 'blog_id', 'option_name', 'ID', 'term_id', 'object_id', + 'term_taxonomy_id', 'umeta_id', 'id'); + $unique_key = array('term_id', 'taxonomy', 'slug'); + $data = array( + 'name' => '', // column name + 'table' => '', // table name + 'max_length' => 0, // max length of the column + 'not_null' => 1, // 1 if not null + 'primary_key' => 0, // 1 if column has primary key + 'unique_key' => 0, // 1 if column has unique key + 'multiple_key' => 0, // 1 if column doesn't have unique key + 'numeric' => 0, // 1 if column has numeric value + 'blob' => 0, // 1 if column is blob + 'type' => '', // type of the column + 'unsigned' => 0, // 1 if column is unsigned integer + 'zerofill' => 0 // 1 if column is zero-filled + ); + if (preg_match("/\s*FROM\s*(.*)?\s*/i", $this->rewritten_query, $match)) { + $table_name = trim($match[1]); + } else { + $table_name = ''; + } + foreach ($this->results[0] as $key => $value) { + $data['name'] = $key; + $data['table'] = $table_name; + if (in_array($key, $primary_key)) { + $data['primary_key'] = 1; + } elseif (in_array($key, $unique_key)) { + $data['unique_key'] = 1; + } else { + $data['multiple_key'] = 1; + } + $this->column_data[] = new ObjectArray($data); + $data['name'] = ''; + $data['table'] = ''; + $data['primary_key'] = 0; + $data['unique_key'] = 0; + $data['multiple_key'] = 0; + } + return $this->column_data; + } else { + return null; + } } + /** + * Method to return the queried result data. + * + * @return mixed + */ public function get_query_results() { return $this->results; } + /** + * Method to return the number of rows from the queried result. + * + * @return unsigned integer + */ public function get_num_rows() { return $this->num_rows; } + /** + * Method to return the queried results according to the query types. + * + * @return mixed + */ public function get_return_value() { return $this->return_value; } - + /** + * Method to return error messages. + * + * @return string + */ public function get_error_message(){ if (count($this->error_messages) === 0){ - $this->is_error = false; + $this->is_error = false; $this->error_messages = array(); return ''; } @@ -253,20 +509,26 @@ class PDOEngine extends PDO { ob_start(); debug_print_backtrace(); - $output .= "" . ob_get_contents() . ""; + $output .= '
' . ob_get_contents() . ''; ob_end_clean(); return $output; } - + /** + * Method to return information about query string for debugging. + * + * @return string + */ private function get_debug_info(){ $output = ''; foreach ($this->queries as $q){ - $output .= $q ."\r\n"; + $output .= $q ."\n"; } return $output; } - + /** + * Method to clear previous data. + */ private function flush(){ $this->rewritten_query = ''; $this->query_type = ''; @@ -274,7 +536,7 @@ class PDOEngine extends PDO { $this->_results = null; $this->last_insert_id = null; $this->affected_rows = null; - $this->column_names = array(); + $this->column_data = array(); $this->num_rows = null; $this->return_value = null; $this->extracted_variables = array(); @@ -283,7 +545,15 @@ class PDOEngine extends PDO { $this->queries = array(); $this->param_num = 0; } - + /** + * Method to include the apropreate class files. + * + * It is not a good habit to change the include files programatically. + * Needs to be fixed some other way. + * + * @param string $query_type + * @return object reference to apropreate driver + */ private function prepare_engine($query_type = null) { if (stripos($query_type, 'create') !== false) { require_once PDODIR . 'query_create.class.php'; @@ -297,35 +567,48 @@ class PDOEngine extends PDO { } return $engine; } - + /** + * Method to create a PDO statement object from the query string. + * + * @return PDOStatement + */ private function prepare_query(){ - $this->queries[] = "Prepare:\t". $this->prepared_query; - $reason = 0; - $message = ''; - $statement = null; + $this->queries[] = "Prepare:\n" . $this->prepared_query; + $reason = 0; + $message = ''; + $statement = null; do { try { $statement = $this->pdo->prepare($this->prepared_query); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); } } while (5 == $reason || 6 == $reason); if ($reason > 0){ - $err_message = sprintf(__("Problem preparing the PDO SQL Statement. Error was: %s", 'sqlite-integration'), $message); + $err_message = sprintf("Problem preparing the PDO SQL Statement. Error was: %s", $message); $this->set_error(__LINE__, __FUNCTION__, $err_message); } return $statement; } - + /** + * Method to execute PDO statement object. + * + * This function executes query and sets the variables to give back to WordPress. + * The variables are class fields. So if success, no return value. If failure, it + * returns void and stops. + * + * @param object $statement of PDO statement + * @return boolean + */ private function execute_query($statement) { - $reason = 0; + $reason = 0; $message = ''; if (!is_object($statement)) - return; + return false; if (count($this->extracted_variables) > 0) { - $this->queries[] = "Executing: ". var_export($this->extracted_variables, true); + $this->queries[] = "Executing:\n" . var_export($this->extracted_variables, true); do { if ($this->query_type == 'update' || $this->query_type == 'replace') { try { @@ -333,7 +616,7 @@ class PDOEngine extends PDO { $statement->execute($this->extracted_variables); $this->commit(); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); $this->rollBack(); } @@ -341,13 +624,13 @@ class PDOEngine extends PDO { try { $statement->execute($this->extracted_variables); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); } } } while (5 == $reason || 6 == $reason); } else { - $this->queries[] = "Executing: (no parameters)\t "; + $this->queries[] = 'Executing: (no parameters)'; do{ if ($this->query_type == 'update' || $this->query_type == 'replace') { try { @@ -355,7 +638,7 @@ class PDOEngine extends PDO { $statement->execute(); $this->commit(); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); $this->rollBack(); } @@ -363,14 +646,14 @@ class PDOEngine extends PDO { try { $statement->execute(); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); } } } while (5 == $reason || 6 == $reason); } if ($reason > 0) { - $err_message = sprintf(__("Error while executing query! Error message was: %s", 'sqlite-integration'), $message); + $err_message = sprintf("Error while executing query! Error message was: %s", $message); $this->set_error(__LINE__, __FUNCTION__, $err_message); return false; } else { @@ -378,32 +661,34 @@ class PDOEngine extends PDO { } //generate the results that $wpdb will want to see switch ($this->query_type) { - case "insert": - case "update": - case "replace": + case 'insert': + case 'update': + case 'replace': $this->last_insert_id = $this->pdo->lastInsertId(); - $this->affected_rows = $statement->rowCount(); - $this->return_value = $this->affected_rows; + $this->affected_rows = $statement->rowCount(); + $this->return_value = $this->affected_rows; break; - case "select": - case "show": - case "showcolumns": - case "showindex": - case "describe": - case "desc": + case 'select': + case 'show': + case 'showcolumns': + case 'showindex': + case 'describe': + case 'desc': + case 'check': + case 'analyze': // case "foundrows": - $this->num_rows = count($this->_results); + $this->num_rows = count($this->_results); $this->return_value = $this->num_rows; break; - case "delete": + case 'delete': $this->affected_rows = $statement->rowCount(); - $this->return_value = $this->affected_rows; + $this->return_value = $this->affected_rows; break; - case "alter": - case "drop": - case "create": - case "optimize": - case "truncate": + case 'alter': + case 'drop': + case 'create': + case 'optimize': + case 'truncate': if ($this->is_error) { $this->return_value = false; } else { @@ -412,19 +697,26 @@ class PDOEngine extends PDO { break; } } - + /** + * Method to extract field data to an array and prepare the query statement. + * + * If original SQL statement is CREATE query, this function do nothing and return + * true. This returned value is not used. + * + * @return boolean + */ private function extract_variables() { if ($this->query_type == 'create') { $this->prepared_query = $this->rewritten_query; - return; + return true; } //long queries can really kill this $pattern = '/(? 10000000) { - $message = __("The query is too big to parse properly", 'sqlite-integration'); + $message = 'The query is too big to parse properly'; $this->set_error(__LINE__, __FUNCTION__, $message); break; //no point in continuing execution, would get into a loop } else { @@ -436,10 +728,15 @@ class PDOEngine extends PDO { //reset the pcre.backtrack_limist ini_set('pcre.backtrack_limit', $_limit); - $this->queries[]= "With Placeholders: $query "; + $this->queries[] = "With Placeholders:\n" . $query; $this->prepared_query = $query; } - + /** + * Call back function to replace field data with PDO parameter. + * + * @param string $matches + * @return string + */ private function replace_variables_with_placeholders($matches) { //remove the wordpress escaping mechanism $param = stripslashes($matches[0]); @@ -463,13 +760,16 @@ class PDOEngine extends PDO { } /** - * takes the query string ,determines the type and returns the type string - * if the query is the type PDO for Wordpress can't executes, returns false + * Method to determine which query type the argument is. + * + * It takes the query string ,determines the type and returns the type string. + * If the query is the type that SQLite Integration can't executes, returns false. + * * @param string $query * @return boolean|string */ private function determine_query_type($query) { - $result = preg_match('/^\\s*(EXPLAIN|PRAGMA|SELECT\\s*FOUND_ROWS|SELECT|INSERT|UPDATE|REPLACE|DELETE|ALTER|CREATE|DROP\\s*INDEX|DROP|SHOW\\s*\\w+\\s*\\w+\\s*|DESCRIBE|DESC|TRUNCATE|OPTIMIZE)/i', $query, $match); + $result = preg_match('/^\\s*(SET|EXPLAIN|PRAGMA|SELECT\\s*FOUND_ROWS|SELECT|INSERT|UPDATE|REPLACE|DELETE|ALTER|CREATE|DROP\\s*INDEX|DROP|SHOW\\s*\\w+\\s*\\w+\\s*|DESCRIBE|DESC|TRUNCATE|OPTIMIZE|CHECK|ANALYZE)/i', $query, $match); if (!$result) { return false; @@ -479,7 +779,9 @@ class PDOEngine extends PDO { $this->query_type = 'foundrows'; } if (stripos($this->query_type, 'show') !== false) { - if (stripos($this->query_type, 'show tables') !== false) { + if (stripos($this->query_type, 'show table status') !== false) { + $this->query_type = 'showstatus'; + } elseif (stripos($this->query_type, 'show tables') !== false) { $this->query_type = 'show'; } elseif (stripos($this->query_type, 'show columns') !== false || stripos($this->query_type, 'show fields') !== false) { $this->query_type = 'showcolumns'; @@ -498,30 +800,37 @@ class PDOEngine extends PDO { } /** - * SQLite version 3.7.11 began support multiple rows insert with values + * Method to execute INSERT query for SQLite version 3.7.11 or later. + * + * SQLite version 3.7.11 began to support multiple rows insert with values * clause. This is for that version or later. + * * @param string $query */ private function execute_insert_query_new($query) { - $engine = $this->prepare_engine($this->query_type); + $engine = $this->prepare_engine($this->query_type); $this->rewritten_query = $engine->rewrite_query($query, $this->query_type); - $this->queries[] = "Rewritten: $this->rewritten_query"; + $this->queries[] = "Rewritten:\n" . $this->rewritten_query; $this->extract_variables(); - $statement = $this->prepare_query(); + $statement = $this->prepare_query(); $this->execute_query($statement); } /** - * executes the INSERT query for SQLite version 3.7.10 or lesser + * Method to execute INSERT query for SQLite version 3.7.10 or lesser. + * + * It executes the INSERT query for SQLite version 3.7.10 or lesser. It is + * necessary to rewrite multiple row values. + * * @param string $query */ private function execute_insert_query($query) { global $wpdb; $multi_insert = false; - $statement = null; - $engine = $this->prepare_engine($this->query_type); + $statement = null; + $engine = $this->prepare_engine($this->query_type); if (preg_match('/(INSERT.*?VALUES\\s*)(\(.*\))/imsx', $query, $matched)) { $query_prefix = $matched[1]; - $values_data = $matched[2]; + $values_data = $matched[2]; if (stripos($values_data, 'ON DUPLICATE KEY') !== false) { $exploded_parts = $values_data; } elseif (stripos($query_prefix, "INSERT INTO $wpdb->comments") !== false) { @@ -542,9 +851,9 @@ class PDOEngine extends PDO { } else { $suffix = ')'; } - $query_string = $query_prefix . ' ' . $value . $suffix; - $this->rewritten_query = $engine->rewrite_query($query_string, $this->query_type); - $this->queries[] = "Rewritten: $this->rewritten_query"; + $query_string = $query_prefix . ' ' . $value . $suffix; + $this->rewritten_query = $engine->rewrite_query($query_string, $this->query_type); + $this->queries[] = "Rewritten:\n" . $this->rewritten_query; $this->extracted_variables = array(); $this->extract_variables(); if ($first) { @@ -557,7 +866,7 @@ class PDOEngine extends PDO { } } else { $this->rewritten_query = $engine->rewrite_query($query, $this->query_type); - $this->queries[] = "Rewritten: $this->rewritten_query"; + $this->queries[] = "Rewritten:\n" . $this->rewritten_query; $this->extract_variables(); $statement = $this->prepare_query(); $this->execute_query($statement); @@ -565,7 +874,10 @@ class PDOEngine extends PDO { } /** - * helper function for execute_insert_query() + * Method to help rewriting multiple row values insert query. + * + * It splits the values clause into an array to execute separately. + * * @param string $values * @return array */ @@ -604,27 +916,28 @@ class PDOEngine extends PDO { } /** - * function to execute CREATE query + * Method to execute CREATE query. + * * @param string * @return boolean */ private function execute_create_query($query) { - $engine = $this->prepare_engine($this->query_type); + $engine = $this->prepare_engine($this->query_type); $rewritten_query = $engine->rewrite_query($query); - $reason = 0; - $message = ''; + $reason = 0; + $message = ''; // $queries = explode(";", $this->rewritten_query); try { $this->beginTransaction(); foreach ($rewritten_query as $single_query) { - $this->queries[] = "Executing:\t" . $single_query; - $single_query = trim($single_query); + $this->queries[] = "Executing:\n" . $single_query; + $single_query = trim($single_query); if (empty($single_query)) continue; $this->pdo->exec($single_query); } $this->commit(); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); if (5 == $reason || 6 == $reason) { $this->commit(); @@ -633,40 +946,45 @@ class PDOEngine extends PDO { } } if ($reason > 0) { - $err_message = sprintf(__("Problem in creating table or index. Error was: %s", 'sqlite-integration'), $message); + $err_message = sprintf("Problem in creating table or index. Error was: %s", $message); $this->set_error(__LINE__, __FUNCTION__, $err_message); return false; } return true; } - /** - * function to execute ALTER TABLE query + * Method to execute ALTER TABLE query. + * * @param string * @return boolean */ private function execute_alter_query($query) { - $engine = $this->prepare_engine($this->query_type); - $reason = 0; - $message = ''; + $engine = $this->prepare_engine($this->query_type); + $reason = 0; + $message = ''; + $re_query = ''; $rewritten_query = $engine->rewrite_query($query, $this->query_type); + if (is_array($rewritten_query) && array_key_exists('recursion', $rewritten_query)) { + $re_query = $rewritten_query['recursion']; + unset($rewritten_query['recursion']); + } try { $this->beginTransaction(); if (is_array($rewritten_query)) { foreach ($rewritten_query as $single_query) { - $this->queries[] = "Executing:\t" . $single_query; - $single_query = trim($single_query); + $this->queries[] = "Executing:\n" . $single_query; + $single_query = trim($single_query); if (empty($single_query)) continue; $this->pdo->exec($single_query); } } else { - $this->queries[] = "Executing:\t" . $rewritten_query; + $this->queries[] = "Executing:\n" . $rewritten_query; $rewritten_query = trim($rewritten_query); $this->pdo->exec($rewritten_query); } $this->commit(); } catch (PDOException $err) { - $reason = $err->getCode(); + $reason = $err->getCode(); $message = $err->getMessage(); if (5 == $reason || 6 == $reason) { $this->commit(); @@ -675,8 +993,11 @@ class PDOEngine extends PDO { $this->rollBack(); } } + if ($re_query != '') { + $this->query($re_query); + } if ($reason > 0) { - $err_message = sprintf(__("Problem in executing alter query. Error was: %s", 'sqlite-integration'), $message); + $err_message = sprintf("Problem in executing alter query. Error was: %s", $message); $this->set_error(__LINE__, __FUNCTION__, $err_message); return false; } @@ -684,52 +1005,105 @@ class PDOEngine extends PDO { } /** - * function to execute SHOW VARIABLES query + * Method to execute SHOW VARIABLES query * - * This query is meaningless for SQLite. This function returns null data and - * avoid the error message. + * This query is meaningless for SQLite. This function returns null data with some + * exceptions and only avoids the error message. * * @param string * @return ObjectArray */ private function show_variables_workaround($query) { $dummy_data = array('Variable_name' => '', 'Value' => null); - $pattern = '/SHOW\\s*VARIABLES\\s*LIKE\\s*(.*)?$/im'; + $pattern = '/SHOW\\s*VARIABLES\\s*LIKE\\s*(.*)?$/im'; if (preg_match($pattern, $query, $match)) { $value = str_replace("'", '', $match[1]); $dummy_data['Variable_name'] = trim($value); // this is set for Wordfence Security Plugin - if ($value == 'max_allowed_packet') $dummy_data['Value'] = 1047552; + if ($value == 'max_allowed_packet') { + $dummy_data['Value'] = 1047552; + } else { + $dummy_data['Value'] = ''; + } } - $_results[] = new ObjectArray($dummy_data); - $this->results = $_results; - $this->num_rows = count($this->results); + $_results[] = new ObjectArray($dummy_data); + $this->results = $_results; + $this->num_rows = count($this->results); $this->return_value = $this->num_rows; return true; } - + /** + * Method to execute SHOW TABLE STATUS query. + * + * This query is meaningless for SQLite. This function return dummy data. + * + * @param string + * @return ObjectArray + */ + private function show_status_workaround($query) { + $pattern = '/^SHOW\\s*TABLE\\s*STATUS\\s*LIKE\\s*(.*?)$/im'; + if (preg_match($pattern, $query, $match)) { + $table_name = str_replace("'", '', $match[1]); + } else { + $table_name = ''; + } + $dummy_data = array( + 'Name' => $table_name, 'Engine' => '', 'Version' => '', + 'Row_format' => '', 'Rows' => 0, 'Avg_row_length' => 0, + 'Data_length' => 0, 'Max_data_length' => 0, 'Index_length' => 0, + 'Data_free' => 0, 'Auto_increment' => 0, 'Create_time' => '', + 'Update_time' => '', 'Check_time' => '', 'Collation' => '', + 'Checksum' => '', 'Create_options' => '', 'Comment' => '' + ); + $_results[] = new ObjectArray($dummy_data); + $this->results = $_results; + $this->num_rows = count($this->results); + $this->return_value = $this->num_rows; + return true; + } + /** + * Method to format the queried data to that of MySQL. + * + * @param string $engine + */ private function process_results($engine) { if (in_array($this->query_type, array('describe', 'desc', 'showcolumns'))) { $this->convert_to_columns_object(); } elseif ('showindex' === $this->query_type){ $this->convert_to_index_object(); + } elseif (in_array($this->query_type, array('check', 'analyze'))) { + $this->convert_result_check_or_analyze(); } else { $this->results = $this->_results; } } - + /** + * Method to format the error messages and put out to the file. + * + * When $wpdb::suppress_errors is set to true or $wpdb::show_errors is set to false, + * the error messages are ignored. + * + * @param string $line where the error occurred. + * @param string $function to indicate the function name where the error occurred. + * @param string $message + * @return boolean + */ private function set_error ($line, $function, $message){ global $wpdb; - $this->errors[] = array("line"=>$line, "function"=>$function); + $this->errors[] = array("line"=>$line, "function"=>$function); $this->error_messages[] = $message; - $this->is_error = true; + $this->is_error = true; if ($wpdb->suppress_errors) return false; if (!$wpdb->show_errors) return false; file_put_contents (FQDBDIR .'debug.txt', "Line $line, Function: $function, Message: $message \n", FILE_APPEND); } - /** - * method that takes the associative array of query results and creates a numeric array of anonymous objects + * Method to change the queried data to PHP object format. + * + * It takes the associative array of query results and creates a numeric + * array of anonymous objects + * + * @access private */ private function convert_to_object(){ $_results = array(); @@ -742,11 +1116,13 @@ class PDOEngine extends PDO { } $this->results = $_results; } - /** - * method to rewrite pragma results to mysql compatible array + * Method to convert the SHOW COLUMNS query data to an object. + * + * It rewrites pragma results to mysql compatible array * when query_type is describe, we use sqlite pragma function. - * see pdo_sqlite_driver.php + * + * @access private */ private function convert_to_columns_object() { $_results = array(); @@ -767,13 +1143,18 @@ class PDOEngine extends PDO { $_columns['Null'] = $row->notnull ? "NO" : "YES"; $_columns['Key'] = $row->pk ? "PRI" : ""; $_columns['Default'] = $row->dflt_value; - $_results[] = new ObjectArray($_columns); + $_results[] = new ObjectArray($_columns); } } $this->results = $_results; } /** - * rewrites the result of SHOW INDEX to the Object compatible with MySQL + * Method to convert SHOW INDEX query data to PHP object. + * + * It rewrites the result of SHOW INDEX to the Object compatible with MySQL + * added the WHERE clause manipulation (ver 1.3.1) + * + * @access private */ private function convert_to_index_object() { $_results = array(); @@ -838,16 +1219,57 @@ class PDOEngine extends PDO { $_columns['Null'] = 'NO'; $_columns['Index_type'] = 'BTREE'; $_columns['Comment'] = ''; - $_results[] = new ObjectArray($_columns); + $_results[] = new ObjectArray($_columns); + } + if (stripos($this->queries[0], 'WHERE') !== false) { + preg_match('/WHERE\\s*(.*)$/im', $this->queries[0], $match); + list($key, $value) = explode('=', $match[1]); + $key = trim($key); + $value = preg_replace("/[\';]/", '', $value); + $value = trim($value); + foreach ($_results as $result) { + if (stripos($value, $result->$key) !== false) { + unset($_results); + $_results[] = $result; + break; + } + } } } $this->results = $_results; } - + /** + * Method to the CHECK query data to an object. + * + * @access private + */ + private function convert_result_check_or_analyze() { + $results = array(); + if ($this->query_type == 'check') { + $_columns = array( + 'Table' => '', + 'Op' => 'check', + 'Msg_type' => 'status', + 'Msg_text' => 'OK' + ); + } else { + $_columns = array( + 'Table' => '', + 'Op' => 'analyze', + 'Msg_type' => 'status', + 'Msg_text' => 'Table is already up to date' + ); + } + $_results[] = new ObjectArray($_columns); + $this->results = $_results; + } /** - * function to get SQLite library version - * this is used for checking if SQLite can execute multiple rows insert + * Method to check SQLite library version. + * + * This is used for checking if SQLite can execute multiple rows insert. + * * @return version number string or 0 + * @access private */ private function get_sqlite_version() { try { @@ -860,8 +1282,10 @@ class PDOEngine extends PDO { } } /** - * function call to PDO::beginTransaction() + * Method to call PDO::beginTransaction(). + * * @see PDO::beginTransaction() + * @return boolean */ public function beginTransaction() { if ($this->has_active_transaction) { @@ -872,7 +1296,8 @@ class PDOEngine extends PDO { } } /** - * function call to PDO::commit() + * Method to call PDO::commit(). + * * @see PDO::commit() */ public function commit() { @@ -880,7 +1305,8 @@ class PDOEngine extends PDO { $this->has_active_transaction = false; } /** - * function call to PDO::rollBack() + * Method to call PDO::rollBack(). + * * @see PDO::rollBack() */ public function rollBack() { @@ -889,6 +1315,11 @@ class PDOEngine extends PDO { } } +/** + * Class to change queried data to PHP object. + * + * @author kjm + */ class ObjectArray { function __construct($data = null,&$node= null) { foreach ($data as $key => $value) { diff --git a/query.class.php b/query.class.php index 0f0a396..1312ca9 100644 --- a/query.class.php +++ b/query.class.php @@ -1,22 +1,56 @@ query_type = $query_type; $this->_query = $query; + $this->parse_query(); switch ($this->query_type) { case 'truncate': - $this->_handle_truncate_query(); + $this->handle_truncate_query(); break; case 'alter': - $this->_handle_alter_query(); + $this->handle_alter_query(); break; case 'create': - $this->_handle_create_query(); + $this->handle_create_query(); break; case 'describe': case 'desc': - $this->_handle_describe_query(); + $this->handle_describe_query(); break; case 'show': - $this->_handle_show_query(); + $this->handle_show_query(); break; case 'showcolumns': - $this->_handle_show_columns_query(); + $this->handle_show_columns_query(); break; case 'showindex': - $this->_handle_show_index(); + $this->handle_show_index(); break; case 'select': - $this->_strip_backticks(); - $this->_handle_sql_count(); - $this->_rewrite_date_sub(); - $this->_delete_index_hints(); - $this->_rewrite_regexp(); - $this->_rewrite_boolean(); + //$this->strip_backticks(); + $this->handle_sql_count(); + $this->rewrite_date_sub(); + $this->delete_index_hints(); + $this->rewrite_regexp(); + //$this->rewrite_boolean(); + $this->fix_date_quoting(); + $this->rewrite_between(); break; case 'insert': - $this->_strip_backticks(); - $this->_execute_duplicate_key_update(); - $this->_rewrite_insert_ignore(); - $this->_rewrite_regexp(); + //$this->safe_strip_backticks(); + $this->execute_duplicate_key_update(); + $this->rewrite_insert_ignore(); + $this->rewrite_regexp(); + $this->fix_date_quoting(); break; case 'update': - $this->_strip_backticks(); - $this->_rewrite_update_ignore(); + //$this->safe_strip_backticks(); + $this->rewrite_update_ignore(); // $this->_rewrite_date_sub(); - $this->_rewrite_limit_usage(); - $this->_rewrite_order_by_usage(); - $this->_rewrite_regexp(); + $this->rewrite_limit_usage(); + $this->rewrite_order_by_usage(); + $this->rewrite_regexp(); + $this->rewrite_between(); break; case 'delete': - $this->_strip_backticks(); - $this->_rewrite_limit_usage(); - $this->_rewrite_order_by_usage(); - $this->_rewrite_date_sub(); - $this->_rewrite_regexp(); - $this->_delete_workaround(); + //$this->strip_backticks(); + $this->rewrite_limit_usage(); + $this->rewrite_order_by_usage(); + $this->rewrite_date_sub(); + $this->rewrite_regexp(); + $this->delete_workaround(); break; case 'replace': - $this->_strip_backticks(); - $this->_rewrite_date_sub(); - $this->_rewrite_regexp(); + //$this->safe_strip_backticks(); + $this->rewrite_date_sub(); + $this->rewrite_regexp(); break; case 'optimize': - $this->_rewrite_optimize(); + $this->rewrite_optimize(); break; + case 'pragma': + break; default: + if (defined(WP_DEBUG) && WP_DEBUG) { + break; + } else { + $this->return_true(); + break; + } } return $this->_query; } - + /** - * method to dummy the SHOW TABLES query + * Method to parse query string and determine which operation is needed. + * + * Remove backticks and change true/false values into 1/0. And determines + * if rewriting CALC_FOUND_ROWS or ON DUPLICATE KEY UPDATE etc is needed. + * + * @access private */ - private function _handle_show_query(){ + private function parse_query() { + $tokens = preg_split("/(''|')/s", $this->_query, -1, PREG_SPLIT_DELIM_CAPTURE); + $literal = false; + $query_string = ''; + foreach ($tokens as $token) { + if ($token == "'") { + if ($literal) { + $literal = false; + } else { + $literal = true; + } + } else { + if ($literal === false) { + if (strpos($token, '`') !== false) { + $token = str_replace('`', '', $token); + } + if (stripos($token, 'TRUE') !== false) { + $token = str_ireplace('TRUE', '1', $token); + } + if (stripos($token, 'FALSE') !== false) { + $token = str_ireplace('FALSE', '0', $token); + } + if (stripos($token, 'SQL_CALC_FOUND_ROWS') !== false) { + $this->rewrite_calc_found = true; + } + if (stripos($token, 'ON DUPLICATE KEY UPDATE') !== false) { + $this->rewrite_duplicate_key = true; + } + if (stripos($token, 'USE INDEX') !== false) { + $this->rewrite_index_hint = true; + } + if (stripos($token, 'IGNORE INDEX') !== false) { + $this->rewrite_index_hint = true; + } + if (stripos($token, 'FORCE INDEX') !== false) { + $this->rewrite_index_hint = true; + } + if (stripos($token, 'BETWEEN') !== false) { + $this->rewrite_between = true; + } + } + } + $query_string .= $token; + } + $this->_query = $query_string; + } + /** + * method to handle SHOW TABLES query. + * + * @access private + */ + private function handle_show_query(){ $table_name = ''; - $pattern = '/^\\s*SHOW\\s*TABLES\\s*(LIKE\\s*(.*))$/im'; + $pattern = '/^\\s*SHOW\\s*TABLES\\s*.*?(LIKE\\s*(.*))$/im'; if (preg_match($pattern, $this->_query, $matches)) { $table_name = str_replace(array("'", ';'), '', $matches[2]); } @@ -106,112 +209,166 @@ class PDOSQLiteDriver { } $this->_query = "SELECT name FROM sqlite_master WHERE type='table'" . $suffix . ' ORDER BY name DESC'; } - /** - * method to strip all column qualifiers (backticks) from a query + * Method to strip all column qualifiers (backticks) from a query. + * + * All the back quotes in the query string are removed automatically. + * So it must not be used when INSERT, UPDATE or REPLACE query is executed. + * + * Obsolite since 1.5.1 + * + * @access private */ - private function _strip_backticks(){ + private function strip_backticks(){ $this->_query = str_replace('`', '', $this->_query); } - /** - * method to emulate the SQL_CALC_FOUND_ROWS placeholder for mysql - * - * this is a kind of tricky play. - * 1. remove SQL_CALC_FOUND_ROWS option, and give it to the pdo engine - * 2. make another $wpdb instance, and execute SELECT COUNT(*) query - * 3. give the returned value to the original instance variable + * Method to strip all column qualifiers (backticks) from a query except post data. * - * when SQL statement contains GROUP BY option, SELECT COUNT query doesn't - * go well. So we remove the GROUP BY, which means the returned value may - * be a approximate one. + * All the back quotes execpt user data to be inserted are revomved automatically. + * This method must be used when INSERT, UPDATE or REPLACE query is executed. * - * this kind of statement is required for WordPress to calculate the paging. - * see also WP_Query class in wp-includes/query.php + * Obsolite since 1.5.1 + * + * @access private */ - private function _handle_sql_count(){ - if (stripos($this->_query, 'SELECT SQL_CALC_FOUND_ROWS') !== false){ - global $wpdb; - // first strip the code. this is the end of rewriting process - $this->_query = str_ireplace('SQL_CALC_FOUND_ROWS', '', $this->_query); - // we make the data for next SELECE FOUND_ROWS() statement - $unlimited_query = preg_replace('/\\bLIMIT\\s*.*/imsx', '', $this->_query); -// $unlimited_query = preg_replace('/\\bFALSE\\s*.*/imsx', '0', $unlimited_query); - $unlimited_query = preg_replace('/\\bGROUP\\s*BY\\s*.*/imsx', '', $unlimited_query); - $unlimited_query = $this->__transform_to_count($unlimited_query); - $_wpdb = new PDODB(); - $result = $_wpdb->query($unlimited_query); - $wpdb->dbh->found_rows_result = $_wpdb->last_result; + private function safe_strip_backticks() { + $query_string = ''; + $tokens = preg_split("/(''|')/s", $this->_query, -1, PREG_SPLIT_DELIM_CAPTURE); + $literal = false; + $query_string = ''; + foreach ($tokens as $token) { + if ($token == "'") { + if ($literal) { + $literal = false; + } else { + $literal = true; + } + } else { + if ($literal === false && strpos($token, '`') !== false) { + $token = str_replace('`', '', $token); + } + } + $query_string .= $token; } + $this->_query = $query_string; } - /** - * transforms a select query to a select count(*) + * Method to emulate the SQL_CALC_FOUND_ROWS placeholder for MySQL. + * + * This is a kind of tricky play. + * 1. remove SQL_CALC_FOUND_ROWS option, and give it to the pdo engine + * 2. make another $wpdb instance, and execute the rewritten query + * 3. give the returned value (integer: number of the rows) to the original instance variable without LIMIT + * + * We no longer use SELECT COUNT query, because it returns the inexact values when used with WP_Meta_Query(). + * + * This kind of statement is required for WordPress to calculate the paging information. + * see also WP_Query class in wp-includes/query.php + * + * @access private + */ + private function handle_sql_count(){ + if (!$this->rewrite_calc_found) return; + global $wpdb; + // first strip the code. this is the end of rewriting process + $this->_query = str_ireplace('SQL_CALC_FOUND_ROWS', '', $this->_query); + // we make the data for next SELECE FOUND_ROWS() statement + $unlimited_query = preg_replace('/\\bLIMIT\\s*.*/imsx', '', $this->_query); + //$unlimited_query = preg_replace('/\\bGROUP\\s*BY\\s*.*/imsx', '', $unlimited_query); + // we no longer use SELECT COUNT query + //$unlimited_query = $this->_transform_to_count($unlimited_query); + $_wpdb = new PDODB(); + $result = $_wpdb->query($unlimited_query); + $wpdb->dbh->found_rows_result = $result; + $_wpdb = null; + } + /** + * Call back method to change SELECT query to SELECT COUNT(). + * + * obsolite since version 1.5.1 * * @param string $query the query to be transformed - * @return string the transformed query + * @return string the transformed query + * @access private */ - private function __transform_to_count($query){ - $pattern = '/^\\s*SELECT\\s*(DISTINCT|)?.*?FROM\b/imsx'; + private function _transform_to_count($query){ + $pattern = '/^\\s*SELECT\\s*(DISTINCT|)?.*?FROM\b/isx'; $_query = preg_replace($pattern, 'SELECT \\1 COUNT(*) FROM ', $query); return $_query; } - /** - * rewrites the insert ignore phrase for sqlite + * Method to rewrite INSERT IGNORE to INSERT OR IGNORE. + * + * @access private */ - private function _rewrite_insert_ignore(){ + private function rewrite_insert_ignore(){ $this->_query = str_ireplace('INSERT IGNORE', 'INSERT OR IGNORE ', $this->_query); } - /** - * rewrites the update ignore phrase for sqlite + * Method to rewrite UPDATE IGNORE to UPDATE OR IGNORE. + * + * @access private */ - private function _rewrite_update_ignore(){ + private function rewrite_update_ignore(){ $this->_query = str_ireplace('UPDATE IGNORE', 'UPDATE OR IGNORE ', $this->_query); } - - /** - * rewrites the date_add function for udf to manipulate + * Method to rewrite DATE_ADD() function. + * + * DATE_ADD has a parameter PHP function can't parse, so we quote the list and + * pass it to the user defined function. + * + * @access private */ - private function _rewrite_date_add(){ + private function rewrite_date_add(){ //(date,interval expression unit) $pattern = '/\\s*date_add\\s*\(([^,]*),([^\)]*)\)/imsx'; if (preg_match($pattern, $this->_query, $matches)) { - $expression = "'".trim($matches[2])."'"; + $expression = "'".trim($matches[2])."'"; $this->_query = preg_replace($pattern, " date_add($matches[1], $expression) ", $this->_query); } } - /** - * rewrite the data_sub function for udf to manipulate + * Method to rewrite DATE_SUB() function. + * + * DATE_SUB has a parameter PHP function can't parse, so we quote the list and + * pass it to the user defined function. + * + * @access private */ - private function _rewrite_date_sub(){ + private function rewrite_date_sub(){ //(date,interval expression unit) $pattern = '/\\s*date_sub\\s*\(([^,]*),([^\)]*)\)/imsx'; if (preg_match($pattern, $this->_query, $matches)) { - $expression = "'".trim($matches[2])."'"; + $expression = "'".trim($matches[2])."'"; $this->_query = preg_replace($pattern, " date_sub($matches[1], $expression) ", $this->_query); } } - /** - * handles the create query - * this function won't be used... See PDOEngine class + * Method to handle CREATE query. + * + * If the query is CREATE query, it will be passed to the query_create.class.php. + * So this method can't be used. It's here for safety. + * + * @access private */ - private function _handle_create_query(){ - require_once PDODIR.'query_create.class.php'; + private function handle_create_query(){ + require_once PDODIR . 'query_create.class.php'; $engine = new CreateQuery(); $this->_query = $engine->rewrite_query($this->_query); $engine = null; } /** - * handles the ALTER query - * this function won't be used... See PDOEngine class + * Method to handle ALTER query. + * + * If the query is ALTER query, it will be passed ot the query_alter.class.php. + * So this method can't be used. It is here for safety. + * + * @access private */ - private function _handle_alter_query(){ + private function handle_alter_query(){ require_once PDODIR . 'query_alter.class.php'; $engine = new AlterQuery(); $this->_query = $engine->rewrite_query($this->_query, 'alter'); @@ -219,10 +376,14 @@ class PDOSQLiteDriver { } /** - * handles DESCRIBE or DESC query - * this is required in the WordPress install process + * Method to handle DESCRIBE or DESC query. + * + * DESCRIBE is required for WordPress installation process. DESC is + * an alias for DESCRIBE, but it is not used in core WordPress. + * + * @access private */ - private function _handle_describe_query(){ + private function handle_describe_query(){ // $this->_query = "select 1=1"; $pattern = '/^\\s*(DESCRIBE|DESC)\\s*(.*)/i'; if (preg_match($pattern, $this->_query, $match)) { @@ -230,42 +391,69 @@ class PDOSQLiteDriver { $this->_query = "PRAGMA table_info($tablename)"; } } - /** + * Method to remove LIMIT clause from DELETE or UPDATE query. + * * The author of the original 'PDO for WordPress' says update method of wpdb * insists on adding LIMIT. But the newest version of WordPress doesn't do that. * Nevertheless some plugins use DELETE with LIMIT, UPDATE with LIMIT. - * We need to exclude sub query's LIMIT. + * We need to exclude sub query's LIMIT. And if SQLite is compiled with + * ENABLE_UPDATE_DELETE_LIMIT option, we don't remove it. + * + * @access private */ - private function _rewrite_limit_usage(){ + private function rewrite_limit_usage(){ + $_wpdb = new PDODB(); + $options = $_wpdb->get_results('PRAGMA compile_options'); + foreach ($options as $opt) { + if (stripos($opt->compile_option, 'ENABLE_UPDATE_DELETE_LIMIT') !== false) return; + } if (stripos($this->_query, '(select') === false) { $this->_query = preg_replace('/\\s*LIMIT\\s*[0-9]$/i', '', $this->_query); } } /** + * Method to remove ORDER BY clause from DELETE or UPDATE query. + * * SQLite compiled without SQLITE_ENABLE_UPDATE_DELETE_LIMIT option can't * execute UPDATE with ORDER BY, DELETE with GROUP BY. * We need to exclude sub query's GROUP BY. + * + * @access private */ - private function _rewrite_order_by_usage() { + private function rewrite_order_by_usage() { + $_wpdb = new PDODB(); + $options = $_wpdb->get_results('PRAGMA compile_options'); + foreach ($options as $opt) { + if (stripos($opt->compile_option, 'ENABLE_UPDATE_DELETE_LIMIT') !== false) return; + } if (stripos($this->_query, '(select') === false) { $this->_query = preg_replace('/\\s*ORDER\\s*BY\\s*.*$/i', '', $this->_query); } } - - private function _handle_truncate_query(){ + /** + * Method to handle TRUNCATE query. + * + * @access private + */ + private function handle_truncate_query(){ $pattern = '/TRUNCATE TABLE (.*)/im'; $this->_query = preg_replace($pattern, 'DELETE FROM $1', $this->_query); } /** - * rewrites use of Optimize queries in mysql for sqlite. - * table name is ignored. + * Method to handle OPTIMIZE query. + * + * Original query has the table names, but they are simply ignored. + * Table names are meaningless in SQLite. + * + * @access private */ - private function _rewrite_optimize(){ + private function rewrite_optimize(){ $this->_query ="VACUUM"; } - /** + * Method to rewrite day. + * * Jusitn Adie says: some wp UI interfaces (notably the post interface) * badly composes the day part of the date leading to problems in sqlite * sort ordering etc. @@ -273,110 +461,124 @@ class PDOSQLiteDriver { * I don't understand that... * * @return void + * @access private */ - private function _rewrite_badly_formed_dates(){ + private function rewrite_badly_formed_dates(){ $pattern = '/([12]\d{3,}-\d{2}-)(\d )/ims'; $this->_query = preg_replace($pattern, '${1}0$2', $this->_query); } - /** - * function to remove unsupported index hinting from mysql queries - * - * @return void - */ - private function _delete_index_hints(){ - $pattern = '/use\s+index\s*\(.*?\)/i'; - $this->_query = preg_replace($pattern, '', $this->_query); - } - - /** - * Justin Adie says: - * method to fix inconsistent use of quoted, unquoted etc date values in query function - * this is ironic, given the above rewrite badlyformed dates method - * examples - * where month(fieldname)=08 becomes month(fieldname)='8' - * where month(fieldname)='08' becomes month(fieldname)='8' - * - * I don't understand... + * Method to remove INDEX HINT. * * @return void + * @access private */ - private function _fix_date_quoting(){ - $pattern = '/(month|year|second|day|minute|hour|dayofmonth)\s*\((.*?)\)\s*=\s*["\']?(\d{1,4})[\'"]?\s*/ei'; - $this->_query = preg_replace($pattern, "'\\1(\\2)=\'' . intval('\\3') . '\' ' ", $this->_query); + private function delete_index_hints(){ + $pattern = '/\\s*(use|ignore|force)\\s+index\\s*\(.*?\)/i'; + $this->_query = preg_replace($pattern, '', $this->_query); } - - private function _rewrite_regexp(){ + /** + * Method to fix the date string and quoting. + * + * This is required for the calendar widget. + * + * WHERE month(fieldname)=08 is converted to month(fieldname)='8' + * WHERE month(fieldname)='08' is converted to month(fieldname)='8' + * + * I use preg_replace_callback instead of 'e' option because of security reason. + * cf. PHP manual (regular expression) + * + * @return void + * @access private + */ + private function fix_date_quoting() { + $pattern = '/(month|year|second|day|minute|hour|dayofmonth)\\s*\((.*?)\)\\s*=\\s*["\']?(\d{1,4})[\'"]?\\s*/im'; + $this->_query = preg_replace_callback($pattern, array($this, '_fix_date_quoting'), $this->_query); + } + /** + * Call back method to rewrite date string. + * + * @param string $match + * @return string + * @access private + */ + private function _fix_date_quoting($match) { + $fixed_val = "{$match[1]}({$match[2]})='" . intval($match[3]) . "' "; + return $fixed_val; + } + /** + * Method to rewrite REGEXP() function. + * + * This method changes function name to regexpp() and pass it to the user defined + * function. + * + * @access private + */ + private function rewrite_regexp(){ $pattern = '/\s([^\s]*)\s*regexp\s*(\'.*?\')/im'; $this->_query = preg_replace($pattern, ' regexpp(\1, \2)', $this->_query); } - /** - * rewrites boolean to numeral - * SQLite doesn't support true/false type + * Method to rewrite boolean to number. + * + * SQLite doesn't support true/false type, so we need to convert them to 1/0. + * + * Obsolite since 1.5.1 + * + * @access private */ - private function _rewrite_boolean() { + private function rewrite_boolean() { $query = str_ireplace('TRUE', "1", $this->_query); $query = str_ireplace('FALSE', "0", $query); $this->_query = $query; } - /** - * method to execute SHOW COLUMNS query + * Method to handl SHOW COLUMN query. + * + * @access private */ - private function _handle_show_columns_query() { + private function handle_show_columns_query() { $pattern_like = '/^\\s*SHOW\\s*(COLUMNS|FIELDS)\\s*FROM\\s*(.*)?\\s*LIKE\\s*(.*)?/i'; - $pattern = '/^\\s*SHOW\\s*(COLUMNS|FIELDS)\\s*FROM\\s*(.*)?/i'; + $pattern = '/^\\s*SHOW\\s*(COLUMNS|FIELDS)\\s*FROM\\s*(.*)?/i'; if (preg_match($pattern_like, $this->_query, $matches)) { - $table_name = str_replace("'", "", trim($matches[2])); - $column_name = str_replace("'", "", trim($matches[3])); + $table_name = str_replace("'", "", trim($matches[2])); + $column_name = str_replace("'", "", trim($matches[3])); $query_string = "SELECT sql FROM sqlite_master WHERE tbl_name='$table_name' AND sql LIKE '%$column_name%'"; $this->_query = $query_string; } elseif (preg_match($pattern, $this->_query, $matches)) { - $table_name = $matches[2]; + $table_name = $matches[2]; $query_string = preg_replace($pattern, "PRAGMA table_info($table_name)", $this->_query); $this->_query = $query_string; } } - /** - * method to execute SHOW INDEX query + * Method to handle SHOW INDEX query. + * + * Moved the WHERE clause manipulation to pdoengin.class.php (ver 1.3.1) + * + * @access private */ - private function _handle_show_index() { - $_columns = array(// No, you'll get no meaningful information.. - 'Key_name' => 'name', - ); - $pattern_0 = '/^\\s*SHOW\\s*(?:INDEX|INDEXES|KEYS)\\s*FROM\\s*(\\w+)?\\s*WHERE\\s*(.*)$/im'; - $pattern_1 = '/^\\s*SHOW\\s*(?:INDEX|INDEXES|KEYS)\\s*FROM\\s*(\\w+)?/im'; - if (preg_match($pattern_0, $this->_query, $match_0)) { - $table_name = str_replace("'", '', $match_0[1]); - list($key, $value) = explode('=', $match_0[2]); - $key = trim($key); - $value = preg_replace("/[\';]/", '', $value); - $value = trim($value); - if (array_key_exists($key, $_columns)) { - $key = $_columns[$key]; - $where_clause = 'AND ' . $key . ' LIKE ' . "'" . $value . "%'"; - } else { - $where_clause = ''; - } - $this->_query = "SELECT * FROM sqlite_master WHERE tbl_name='$table_name' $where_clause"; - } elseif (preg_match($pattern_1, $this->_query, $match_1)) { - $table_name = preg_replace("/[\';]/", '', $match_1[1]); - $table_name = trim($table_name); + private function handle_show_index() { + $pattern = '/^\\s*SHOW\\s*(?:INDEX|INDEXES|KEYS)\\s*FROM\\s*(\\w+)?/im'; + if (preg_match($pattern, $this->_query, $match)) { + $table_name = preg_replace("/[\';]/", '', $match[1]); + $table_name = trim($table_name); $this->_query = "SELECT * FROM sqlite_master WHERE tbl_name='$table_name'"; } } - /** - * function to rewrite ON DUPLICATE KEY UPDATE statement - * I use SELECT query and check if INSERT is allowed or not - * Rewriting procedure looks like a detour, but I've got another way. + * Method to handle ON DUPLICATE KEY UPDATE statement. + * + * First we use SELECT query and check if INSERT is allowed or not. + * Rewriting procedure looks like a detour, but I've got no other ways. + * + * Added the literal check since the version 1.5.1. * * @return void + * @access private */ - private function _execute_duplicate_key_update() { - $update = false; + private function execute_duplicate_key_update() { + if (!$this->rewrite_duplicate_key) return; $unique_keys_for_cond = array(); $unique_keys_for_check = array(); $pattern = '/^\\s*INSERT\\s*INTO\\s*(\\w+)?\\s*(.*)\\s*ON\\s*DUPLICATE\\s*KEY\\s*UPDATE\\s*(.*)$/ims'; @@ -402,14 +604,14 @@ class PDOSQLiteDriver { $unique_keys_for_check = array_map('trim', $unique_keys_for_check); } else { // Without unique key or primary key, UPDATE statement will affect all the rows! - $query = 'INSERT INTO '.$table_name.' '.$insert_data; + $query = 'INSERT INTO '.$table_name.' '.$insert_data; $this->_query = $query; $_wpdb = null; return; } // data check - if (preg_match('/^\((.*)\)\\s*VALUES\\s*\((.*)\)$/im', $insert_data, $match_1)) { - $col_array = explode(',', $match_1[1]); + if (preg_match('/^\((.*)\)\\s*VALUES\\s*\((.*)\)$/ims', $insert_data, $match_1)) { + $col_array = explode(',', $match_1[1]); $ins_data_array = explode(',', $match_1[2]); foreach ($col_array as $col) { $val = trim(array_shift($ins_data_array)); @@ -420,7 +622,7 @@ class PDOSQLiteDriver { foreach ($unique_keys_for_cond as $unique_key) { if (strpos($unique_key, ',') !== false) { $unique_key_array = explode(',', $unique_key); - $counter = count($unique_key_array); + $counter = count($unique_key_array); for ($i = 0; $i < $counter; ++$i) { $col = trim($unique_key_array[$i]); if (isset($ins_data_assoc[$col]) && $i == $counter - 1) { @@ -441,9 +643,9 @@ class PDOSQLiteDriver { } } } - $condition = rtrim($condition, ' OR '); + $condition = rtrim($condition, ' OR '); $test_query = "SELECT * FROM {$table_name} WHERE {$condition}"; - $results = $_wpdb->query($test_query); + $results = $_wpdb->query($test_query); $_wpdb = null; if ($results == 0) { $this->_query = 'INSERT INTO '.$table_name.' '.$insert_data; @@ -453,7 +655,7 @@ class PDOSQLiteDriver { if (preg_match('/^\((.*)\)\\s*VALUES\\s*\((.*)\)$/im', $insert_data, $match_2)) { $col_array = explode(',', $match_2[1]); $ins_array = explode(',', $match_2[2]); - $count = count($col_array); + $count = count($col_array); for ($i = 0; $i < $count; $i++) { $col = trim($col_array[$i]); $val = trim($ins_array[$i]); @@ -463,17 +665,17 @@ class PDOSQLiteDriver { // change col = data, col = data to array(col=>data, col=>data) // some plugins have semi-colon at the end of the query $update_data = rtrim($update_data, ';'); - $tmp_array = explode(',', $update_data); + $tmp_array = explode(',', $update_data); foreach ($tmp_array as $pair) { list($col, $value) = explode('=', $pair); - $col = trim($col); + $col = trim($col); $value = trim($value); $update_array_assoc[$col] = $value; } // change array(col=>values(col)) to array(col=>data) foreach ($update_array_assoc as $key => &$value) { if (preg_match('/^VALUES\\s*\((.*)\)$/im', $value, $match_3)) { - $col = trim($match_3[1]); + $col = trim($match_3[1]); $value = $ins_array_assoc[$col]; } } @@ -491,36 +693,72 @@ class PDOSQLiteDriver { } } $update_strings = rtrim($update_strings, ','); - $unique_where = array_unique($where_array, SORT_REGULAR); - $where_string = ' WHERE ' . implode(' AND ', $unique_where); + $unique_where = array_unique($where_array, SORT_REGULAR); + $where_string = ' WHERE ' . implode(' AND ', $unique_where); // $where_string = ' WHERE ' . rtrim($where_string, ','); $update_query = 'UPDATE ' . $table_name . ' SET ' . $update_strings . $where_string; $this->_query = $update_query; } } - } else { - // wordaround... - $pattern = '/ ON DUPLICATE KEY UPDATE.*$/im'; - $replace_query = preg_replace($pattern, '', $this->_query); - $replace_query = str_ireplace('INSERT ', 'INSERT OR REPLACE ', $replace_query); - $this->_query = $replace_query; } +// else { +// $pattern = '/ ON DUPLICATE KEY UPDATE.*$/im'; +// $replace_query = preg_replace($pattern, '', $this->_query); +// $replace_query = str_ireplace('INSERT ', 'INSERT OR REPLACE ', $replace_query); +// $this->_query = $replace_query; +// } } - /** - * workaround function to avoid DELETE with JOIN + * Method to rewrite BETWEEN A AND B clause. + * + * This clause is the same form as natural language, so we have to check if it is + * in the data or SQL statement. + * + * @access private + */ + private function rewrite_between() { + if (!$this->rewrite_between) return; + $pattern = '/\\s*(\\w+)?\\s*BETWEEN\\s*([^\\s]*)?\\s*AND\\s*([^\\s]*)?\\s*/ims'; + if (preg_match($pattern, $this->_query, $match)) { + $column_name = trim($match[1]); + $min_value = trim($match[2]); + $max_value = trim($match[3]); + $max_value = rtrim($max_value); + $replacement = " $column_name >= '$min_value' AND $column_name <= '$max_value'"; + $this->_query = str_ireplace($match[0], $replacement, $this->_query); + } + } + /** + * Method to avoid DELETE with JOIN statement. + * * wp-admin/includes/upgrade.php contains 'DELETE ... JOIN' statement. * This query can't be replaced with regular expression or udf, so we - * replace all the statement with another. + * replace all the statement with another. But this query was used in + * the very old version of WordPress when it was upgraded. So we won't + * have no chance that this method should be used. + * + * @access private */ - private function _delete_workaround() { + private function delete_workaround() { global $wpdb; // $pattern = "DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2 USING (option_name) WHERE o2.option_id > o1.option_id"; - $pattern = "DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2"; + $pattern = "DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2"; $rewritten = "DELETE FROM $wpdb->options WHERE option_id IN (SELECT MIN(option_id) FROM $wpdb->options GROUP BY option_name HAVING COUNT(*) > 1)"; if (stripos($this->_query, $pattern) !== false) { $this->_query = $rewritten; } } + /** + * Method to suppress errors. + * + * When the query string is the one that this class can't manipulate, + * the query string is replaced with the one that always returns true + * and does nothing. + * + * @access private + */ + private function return_true() { + $this->_query = 'SELECT 1=1'; + } } ?> \ No newline at end of file diff --git a/query_alter.class.php b/query_alter.class.php index 5061546..933183c 100644 --- a/query_alter.class.php +++ b/query_alter.class.php @@ -1,170 +1,219 @@ split_multiple($command); - foreach ($command_array as $single_command) { - $command_tokens = $this->command_tokenizer($single_command); - if (!empty($command_tokens)) { - $tokens[] = array_merge($tmp_tokens, $command_tokens); - } else { - $this->_query = 'SELECT 1=1'; - } +// $command_array = $this->split_multiple($command); + $command_array = explode(',', $command); + + $single_command = array_shift($command_array); + if (!empty($command_array)) { + $re_command = 'ALTER TABLE ' . $tmp_tokens['table_name'] . ' '; + $re_command .= implode(',', $command_array); + } + $command_tokens = $this->command_tokenizer($single_command); + if (!empty($command_tokens)) { + $tokens = array_merge($tmp_tokens, $command_tokens); + } else { + $this->_query = 'SELECT 1=1'; + return $this->_query; } - foreach ($tokens as $token) { - $command_name = $token['command']; - switch ($command_name) { - case 'add column': case 'rename to': case 'add index': case 'drop index': - $this->_query = $this->handle_single_command($token); - break; - case 'add primary key': - $this->_query = $this->handle_add_primary_key($token); - break; - case 'drop primary key': - $this->_query = $this->handle_drop_primary_key($token); - break; - case 'modify column': - $this->_query = $this->handle_modify_command($token); - break; - case 'change column': - $this->_query = $this->handle_change_command($token); - break; - case 'alter column': - $this->_query = $this->handle_alter_command($token); - break; - default: - break; +// foreach ($tokens as $token) { + $command_name = strtolower($tokens['command']); + switch ($command_name) { + case 'add column': case 'rename to': case 'add index': case 'drop index': + $tmp_query = $this->handle_single_command($tokens); + break; + case 'add primary key': + $tmp_query = $this->handle_add_primary_key($tokens); + break; + case 'drop primary key': + $tmp_query = $this->handle_drop_primary_key($tokens); + break; + case 'modify column': + $tmp_query = $this->handle_modify_command($tokens); + break; + case 'change column': + $tmp_query = $this->handle_change_command($tokens); + break; + case 'alter column': + $tmp_query = $this->handle_alter_command($tokens); + break; + default: + break; } - } +// } + if (!is_array($tmp_query)) { + $this->_query[] = $tmp_query; + } else { + $this->_query = $tmp_query; + } + if ($re_command != '') { + $this->_query = array_merge($this->_query, array('recursion' => $re_command)); + } } else { $this->_query = 'SELECT 1=1'; } return $this->_query; } - + /** + * Function to analyze ALTER TABLE command and sets the data to an array. + * + * @param string $command + * @return boolean|array + * @access private + */ private function command_tokenizer($command) { $tokens = array(); - if (preg_match('/^(ADD|DROP|RENAME|MODIFY|CHANGE|ALTER)\\s*(\\w+)?\\s*(\\w+)?\\s*/ims', $command, $match)) { + if (preg_match('/^(ADD|DROP|RENAME|MODIFY|CHANGE|ALTER)\\s*(\\w+)?\\s*(\\w+(\(.+\)|))?\\s*/ims', $command, $match)) { $the_rest = str_ireplace($match[0], '', $command); - $match_1 = strtolower(trim($match[1])); - $match_2 = strtolower(trim($match[2])); - $match_3 = isset($match[3]) ? strtolower(trim($match[3])) : ''; - switch ($match_1) { + $match_1 = trim($match[1]); + $match_2 = trim($match[2]); + $match_3 = isset($match[3]) ? trim($match[3]) : ''; + switch (strtolower($match_1)) { case 'add': - if (in_array($match_2, array('fulltext', 'constraint', 'foreign'))) { + if (in_array(strtolower($match_2), array('fulltext', 'constraint', 'foreign'))) { break; - } elseif ($match_2 == 'column') { - $tokens['command'] = $match_1.' '.$match_2; + } elseif (stripos('column', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['column_name'] = $match_3; - $tokens['column_def'] = trim($the_rest); - } elseif ($match_2 == 'primary') { - $tokens['command'] = $match_1.' '.$match_2.' '.$match_3; + $tokens['column_def'] = trim($the_rest); + } elseif (stripos('primary', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2.' '.$match_3; $tokens['column_name'] = $the_rest; - } elseif ($match_2 == 'unique') { + } elseif (stripos('unique', $match_2) !== false) { list($index_name, $col_name) = preg_split('/[\(\)]/s', trim($the_rest), -1, PREG_SPLIT_DELIM_CAPTURE); - $tokens['unique'] = true; - $tokens['command'] = $match_1.' '.$match_3; - $tokens['index_name'] = trim($index_name); + $tokens['unique'] = true; + $tokens['command'] = $match_1.' '.$match_3; + $tokens['index_name'] = trim($index_name); $tokens['column_name'] = '('.trim($col_name).')'; - } elseif (in_array($match_2, array('index', 'key'))) { + } elseif (in_array(strtolower($match_2), array('index', 'key'))) { $tokens['command'] = $match_1.' '.$match_2; - $tokens['index_name'] = $match_3; + if ($match_3 == '') { + $tokens['index_name'] = str_replace(array('(', ')'), '', $the_rest); + } else { + $tokens['index_name'] = $match_3; + } $tokens['column_name'] = trim($the_rest); } else { - $tokens['command'] = $match_1.' column'; + $tokens['command'] = $match_1.' COLUMN'; $tokens['column_name'] = $match_2; - $tokens['column_def'] = $match_3.' '.$the_rest; + $tokens['column_def'] = $match_3.' '.$the_rest; } break; case 'drop': - if ($match_2 == 'column') { - $tokens['command'] = $match_1.' '.$match_2; + if (stripos('column', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['column_name'] = trim($match_3); - } elseif ($match_2 == 'primary') { + } elseif (stripos('primary', $match_2) !== false) { $tokens['command'] = $match_1.' '.$match_2.' '.$match_3; - } elseif (in_array($match_2, array('index', 'key'))) { - $tokens['command'] = $match_1.' '.$match_2; + } elseif (in_array(strtolower($match_2), array('index', 'key'))) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['index_name'] = $match_3; - } elseif ($match_2 == 'primary') { + } elseif (stripos('primary', $match_2) !== false) { $tokens['command'] = $match_1.' '.$match_2.' '.$match_3; } else { - $tokens['command'] = $match_1.' column'; + $tokens['command'] = $match_1.' COLUMN'; $tokens['column_name'] = $match_2; } break; case 'rename': - if ($match_2 == 'to') { - $tokens['command'] = $match_1.' '.$match_2; + if (stripos('to', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['column_name'] = $match_3; } else { - $tokens['command'] = $match_1.' to'; + $tokens['command'] = $match_1.' TO'; $tokens['column_name'] = $match_2; } break; case 'modify': - if ($match_2 == 'column') { - $tokens['command'] = $match_1.' '.$match_2; + if (stripos('column', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['column_name'] = $match_3; - $tokens['column_def'] = trim($the_rest); + $tokens['column_def'] = trim($the_rest); } else { - $tokens['command'] = $match_1.' column'; + $tokens['command'] = $match_1.' COLUMN'; $tokens['column_name'] = $match_2; - $tokens['column_def'] = $match_3.' '.trim($the_rest); + $tokens['column_def'] = $match_3.' '.trim($the_rest); } break; case 'change': - if ($match_2 == 'column') { - $tokens['command'] = $match_1.' '.$match_2; + $the_rest = trim($the_rest); + if (stripos('column', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['old_column'] = $match_3; - list($new_col) = preg_split('/\s/s', trim($the_rest), -1, PREG_SPLIT_DELIM_CAPTURE); - $tokens['new_column'] = $new_col; - $col_def = str_ireplace($new_col, '', $the_rest); - $tokens['column_def'] = trim($col_def); + list($new_col) = explode(' ', $the_rest); + $tmp_col = preg_replace('/\(.+?\)/im', '', $new_col); + if (array_key_exists(strtolower($tmp_col), $this->array_types)) { + $tokens['column_def'] = $the_rest; + } else { + $tokens['new_column'] = $new_col; + $col_def = str_replace($new_col, '', $the_rest); + $tokens['column_def'] = trim($col_def); + } } else { - $tokens['command'] = $match_1.' column'; + $tokens['command'] = $match_1.' column'; $tokens['old_column'] = $match_2; - $tokens['new_column'] = $match_3; - $tokens['column_def'] = trim($the_rest); + $tmp_col = preg_replace('/\(.+?\)/im', '', $match_3); + if (array_key_exists(strtolower($tmp_col), $this->array_types)) { + $tokens['column_def'] = $match_3 . ' ' . $the_rest; + } else { + $tokens['new_column'] = $match_3; + $tokens['column_def'] = $the_rest; + } } break; case 'alter': - if ($match_2 == 'column') { - $tokens['command'] = $match_1.' '.$match_2; + if (stripos('column', $match_2) !== false) { + $tokens['command'] = $match_1.' '.$match_2; $tokens['column_name'] = $match_3; - list($set_or_drop) = explode(' ', $the_rest); - if ($set_or_drop == 'set') { - $tokens['default_command'] = 'set default'; - $default_value = str_ireplace('set default', '', $the_rest); - $tokens['default_value'] = trim($default_value); + list($set_or_drop) = explode(' ', $the_rest); + if (stripos('set', $set_or_drop) !== false) { + $tokens['default_command'] = 'SET DEFAULT'; + $default_value = str_ireplace('set default', '', $the_rest); + $tokens['default_value'] = trim($default_value); } else { - $tokens['default_command'] = 'drop default'; + $tokens['default_command'] = 'DROP DEFAULT'; } } else { - $tokens['command'] = $match_1.' column'; + $tokens['command'] = $match_1.' COLUMN'; $tokens['column_name'] = $match_2; - if ($match_3 == 'set') { - $tokens['default_command'] = 'set default'; - $default_value = str_ireplace('default', '', $the_rest); - $tokens['default_value'] = trim($default_value); + if (stripos('set', $match_3) !== false) { + $tokens['default_command'] = 'SET DEFAULT'; + $default_value = str_ireplace('default', '', $the_rest); + $tokens['default_value'] = trim($default_value); } else { - $tokens['default_command'] = 'drop default'; + $tokens['default_command'] = 'DROP DEFAULT'; } } break; @@ -174,12 +223,20 @@ class AlterQuery { return $tokens; } } - + /** + * Function to split multiple commands into an array and return it. + * + * This function is deprecated. + * + * @access private + * @param unknown $command + * @return multitype:string unknown Ambigous
+ + +
++ +
++ +
++ +
+ + + + + ++ +
+ tables('all'); + ?> + + + +'.$fix_results.'
'; + echo ''.$message.'
'; + echo '| '. $column_header . ' | '. $type_header . ' | ' . $null_header . ' | ' . $default_header . ' |
|---|---|---|---|
| ' . $column->Field . ' | '; + echo '' . $column->Type . ' | '; + echo '' . $column->Null . ' | '; + echo '' . $column->Default . ' | '; + echo '
' . $results; + echo '
- Plugin Page.', $domain);?> + SQLite Integration page.', $domain);?>
@@ -38,7 +45,7 @@ class SQLiteIntegrationDocument {
- PDO for WordPress, which enabled WordPress to use SQLite for its database. But PDO for WordPress doesn\'t seem to be maintained any more only to be outdated. SQLite Integration makes use of the basic ideas and framework of PDO for WordPress, adds some new features and updates it to be able to work with the newest version of WordPress(3.5.1 and 3.6 beta).', $domain); ?> + PDO for WordPress, which enabled WordPress to use SQLite for its database. But PDO for WordPress doesn\'t seem to be maintained any more only to be outdated. SQLite Integration makes use of the basic ideas and framework of PDO for WordPress, adds some new features and updates it to be able to work with the newest version of WordPress(3.8.1).', $domain); ?>
SQLite Web Page says — SQLite is a "software library that implements selfcontained, serverless, zero-configuration, transactional SQL database engine". It is "a good choice for small to medium size websites". It\'s small and portable, and you don\'t need any database server system.', $domain); ?> @@ -66,10 +73,10 @@ class SQLiteIntegrationDocument {
Support Forum.', $domain);?> @@ -86,7 +93,7 @@ class SQLiteIntegrationDocument {
-
- System Info page. To see more details, please visit the Plugin Page.', $domain), $utils->show_parent());?> + System Info page. To see more details, please visit the Plugin Page.', $domain), $utils->show_parent());?>
| - | - | + | + | reason;?> | - +
|---|
- -
-- My recommendation is not to use caching plugins. Even so, if you want a caching plugin, you could try WP Super Cache, which doesn\'t use db.php file. But no warranty, try at your own risk.', $domain);?> -
-- -
- -- -
-- -
--$postRes = mysql_query($sql,$wpdb->dbh); --
- -
-
-if ( version_compare(mysql_get_server_info(), '4.1.0', '>=') ) {
-
- - -
-- -
--$postRes = $wpdb->query($sql); --
-if ( version_compare($wpdb->db_version(), '4.1.0', '>=') ) {
-
- - -
- -- -
-- WordPress Related Posts or Related Posts or others. They are working fine with SQLite Integration!', $domain);?> -
-
* array( table name => array( index name ( column name )))
+ *
* for each table in the database
+ *
* @return array
+ * @access private
*/
private function get_tables_info() {
global $wpdb;
@@ -116,8 +151,12 @@ class SQLiteIntegrationUtils {
return $table_info;
}
/**
- * function to return the autoincremented values of each table
+ * Method to get the autoincremented values of each table and returns it.
+ *
+ * The data is from sqlite_sequence table.
+ *
* @return assoc array name => sequence, or false
+ * @access private
*/
private function get_sequence() {
global $wpdb;
@@ -133,9 +172,12 @@ class SQLiteIntegrationUtils {
}
}
/**
- * function to return contents of 'wp-content/db.php' file
- * if the file is not existent, returns false.
+ * Method to show the contents of 'wp-content/db.php' file.
+ *
+ * If this file is not existent, shows message and returns false.
+ *
* @return string|boolean
+ * @access private
*/
private function show_db_php() {
if (defined('WP_CONTENT_DIR')) {
@@ -156,9 +198,11 @@ class SQLiteIntegrationUtils {
}
}
/**
- * function to get the textarea contents and write into db.php file
+ * Method to get the textarea content and write it to db.php file.
+ *
* @param string $contents
* @return boolean
+ * @access private
*/
private function save_db_php($contents) {
if (defined('WP_CONTENT_DIR')) {
@@ -181,9 +225,13 @@ class SQLiteIntegrationUtils {
return true;
}
/**
- * function to optimize database file
- * only to give vacuum command to SQLite
+ * Method to optimize SQLite database.
+ *
+ * This only gives VACUUM command to SQLite database. This query is rewritten in
+ * the query.class.php file.
+ *
* @return boolean
+ * @access private
*/
private function optimize_db() {
global $wpdb;
@@ -191,21 +239,25 @@ class SQLiteIntegrationUtils {
return $result;
}
/**
- * function to get SQLite database file size
+ * Method to get SQLite database file size.
+ *
* @return string
+ * @access private
*/
private function get_database_size() {
$db_file = FQDB;
if (file_exists($db_file)) {
$size = filesize($db_file);
- clearstatcache(false, $db_file);
+ clearstatcache(true, $db_file);
return $this->convert_to_formatted_number($size);
}
}
/**
- * function to format file size to unit byte
+ * Method to format the file size number to the unit byte.
+ *
* @param integer $size
* @return string
+ * @access private
*/
private function convert_to_formatted_number($size) {
$unim = array('Bytes', 'KB', 'MB', 'GB', 'TB', 'PB');
@@ -218,7 +270,10 @@ class SQLiteIntegrationUtils {
}
/**
- * function to echo plugins info table component
+ * Method to echo plugins info table component.
+ *
+ * @return nothing returned.
+ * @access private
*/
private function show_plugins_info() {
$domain = $this->text_domain;
@@ -251,7 +306,11 @@ class SQLiteIntegrationUtils {
$compat = __('No', $domain);
break;
case 'Checked':
- $compat = __('Checked', $domain);
+ if (!empty($plugin_info->informed) && stripos($plugin_info->informed, 'Users\' Information') !== false) {
+ $compat = __('Checked*', $domain);
+ } else {
+ $compat = __('Checked', $domain);
+ }
break;
default:
$compat = __('Not Checked', $domain);
@@ -279,9 +338,11 @@ class SQLiteIntegrationUtils {
}
/**
- * function to return output of phpinfo() as an array
- * See PHP Manual
+ * Method to return output of phpinfo() as an array.
+ *
+ * @See PHP Manual
* @return array
+ * @access private
*/
private function parse_php_modules() {
ob_start();
@@ -313,9 +374,11 @@ class SQLiteIntegrationUtils {
return $modules;
}
/**
- * function to echo PHP module info
+ * Method to echo PHP module info.
+ *
* @param string $module_name
* @param string $setting_name
+ * @access private
*/
private function get_module_setting($module_name, $setting_name) {
$module_info = $this->parse_php_modules();
@@ -329,10 +392,147 @@ class SQLiteIntegrationUtils {
}
}
+ /**
+ * Method to parse FQDBDIR and return backup database files.
+ *
+ * @return nothing returned.
+ * @access private
+ */
+ private function get_backup_files() {
+ $db_name = basename(FQDB);
+ $names_to_exclude = array('.', '..', '.htaccess', 'debug.txt', '.ht.sqlite', 'index.php', $db_name);
+ $backup_files = array();
+ if (is_dir(FQDBDIR)) {
+ if ($dir_handle = opendir(FQDBDIR)) {
+ while (($file_name = readdir($dir_handle)) !== false) {
+ if (in_array($file_name, $names_to_exclude)) continue;
+ $backup_files[] = $file_name;
+ }
+ }
+ }
+ return $backup_files;
+ }
+
+ /**
+ * Method to create backup database file.
+ *
+ * @return string array
+ * @access private
+ */
+ private function backup_db() {
+ $domain = $this->text_domain;
+ $result = array();
+ $database_file = FQDB;
+ $db_name = basename(FQDB);
+ if (!file_exists($database_file)) {
+ return false;
+ }
+ $today = date("Ymd");
+ if (!extension_loaded('zip')) {
+ $backup_file = $database_file . '.' . $today . '.back';
+ if (copy($database_file, $backup_file)) {
+ $result['success'] = basename($backup_file) . __(' was created.', $domain);
+ } else {
+ $result['error'] = basename($backup_file) . __(' was not created.', $domain);
+ }
+ } else {
+ $backup_file = $database_file . '.' . $today . '.zip';
+ $zip = new ZipArchive();
+ $res = $zip->open($backup_file, ZipArchive::CREATE | ZipArchive::OVERWRITE);
+ if ($res === true) {
+ $zip->addFile($database_file, $db_name);
+ $result['success'] = basename($backup_file) . __(' was created.', $domain);
+ } else {
+ $result['error'] = basename($backup_file) . __(' was not created.', $domain);
+ }
+ $zip->close();
+ }
+ return $result;
+ }
+ /**
+ * Method to delete backup database file(s).
+ *
+ * Users can delete multiple files at a time.
+ *
+ * @return false if file names aren't checked, empty array if failed, array of messages if succeeded.
+ * @access private
+ */
+ private function delete_backup_db() {
+ $domain = $this->text_domain;
+ $file_names = array();
+ $results = array();
+ if (isset($_POST['backup_checked'])) {
+ $file_names = $_POST['backup_checked'];
+ } else {
+ return false;
+ }
+ if (chdir(FQDBDIR)) {
+ foreach ($file_names as $file) {
+ if (unlink($file)) {
+ $results[$file] = sprintf(__('File %s was deleted.', $domain), $file);
+ } else {
+ $results[$file] = sprintf(__('Error! File was not deleted.', $domain), $file);
+ }
+ }
+ }
+ return $results;
+ }
+ /**
+ * Method to download a backup file.
+ *
+ * This method uses header() function, so we have to register this function using
+ * admin_init action hook. It must also be declared as public. We check HTTP_REFERER
+ * and input button name, and ,after that, wp_nonce. When the admin_init is executed
+ * it only returns true.
+ *
+ * The database file might be several hundred mega bytes, so we don't use readfile()
+ * but use fread() instead.
+ *
+ * Users can download one file at a time.
+ *
+ * @return 1 if the file name isn't checked, 2 if multiple files are checked, true if succeeded.
+ */
+ static function download_backup_db() {
+ if (is_multisite()) {
+ $script_url = network_admin_url('settings.php?page=setting-file');
+ } else {
+ $script_url = admin_url('options-general.php?page=setting-file');
+ }
+ if (isset($_POST['download_backup_file']) && stripos($_SERVER['HTTP_REFERER'], $script_url) !== false) {
+ check_admin_referer('sqliteintegration-backup-manip-stats');
+ if (!isset($_POST['backup_checked'])) return 1;
+ $file_names = array();
+ $file_names = $_POST['backup_checked'];
+ if (count($file_names) != 1) return 2;
+ $file_name = $file_names[0];
+ $file_path = FQDBDIR . $file_name;
+ $blog_name = str_replace(array(' ', ' ', ';'), array('_', '_', '_'), get_bloginfo('name'));
+ $download_file_name = $blog_name . '_' . $file_name;
+ header('Pragma: public');
+ header('Cache-Control: must-revalidate,post-check=0,pre-check=0');
+ header('Content-Type: application/force-download');
+ header('Content-Type: application/octet-stream');
+ header('Content-Type: application/download');
+ header('Content-Disposition: attachment; filename='.$download_file_name.';');
+ header('Content-Transfer-Encoding: binary');
+ header('Content-Length: '.filesize($file_path));
+ $fp = fopen($file_path, 'r');
+ while (!feof($fp)) {
+ echo fread($fp, 65536);
+ flush();
+ }
+ fclose($fp);
+ }
+ return true;
+ }
+ /**
+ * Method to show Welcome page.
+ *
+ */
function welcome() {
$domain = $this->text_domain;
if (isset($_GET['page']) && $_GET['page'] == 'sqlite-integration') :?>
-
+ +
@@ -632,7 +888,47 @@ class SQLiteIntegrationUtils {
- + ++ +
++ +
++ +
+ get_backup_files();?> + +@@ -641,7 +937,7 @@ class SQLiteIntegrationUtils { wp_nonce_field('sqlitewordpress-log-reset-stats'); } ?> - -
- -
- + }?> + '; ?> + show_db_php();?> +'; ?> + ', __('Save', $domain), __('Are you sure to save this file?\n\nClick [Cancel] to stop, [OK] to continue.', $domain)); ?> + '; ?> +