| Current File : //home/tradevaly/www/phpmy/libraries/classes/Url.php |
<?php
/**
* Static methods for URL/hidden inputs generating
*/
declare(strict_types=1);
namespace PhpMyAdmin;
use PhpMyAdmin\Crypto\Crypto;
use function base64_decode;
use function base64_encode;
use function htmlentities;
use function htmlspecialchars;
use function http_build_query;
use function in_array;
use function ini_get;
use function is_array;
use function json_encode;
use function str_contains;
use function strlen;
use function strtr;
/**
* Static methods for URL/hidden inputs generating
*/
class Url
{
/**
* Generates text with hidden inputs.
*
* @see Url::getCommon()
*
* @param string|array $db optional database name
* (can also be an array of parameters)
* @param string $table optional table name
* @param int $indent indenting level
* @param string|array $skip do not generate a hidden field for this parameter
* (can be an array of strings)
*
* @return string string with input fields
*/
public static function getHiddenInputs(
$db = '',
$table = '',
$indent = 0,
$skip = []
) {
global $config;
if (is_array($db)) {
$params =& $db;
} else {
$params = [];
if (strlen((string) $db) > 0) {
$params['db'] = $db;
}
if (strlen((string) $table) > 0) {
$params['table'] = $table;
}
}
if (! empty($GLOBALS['server']) && $GLOBALS['server'] != $GLOBALS['cfg']['ServerDefault']) {
$params['server'] = $GLOBALS['server'];
}
if (empty($config->getCookie('pma_lang')) && ! empty($GLOBALS['lang'])) {
$params['lang'] = $GLOBALS['lang'];
}
if (! is_array($skip)) {
if (isset($params[$skip])) {
unset($params[$skip]);
}
} else {
foreach ($skip as $skipping) {
if (! isset($params[$skipping])) {
continue;
}
unset($params[$skipping]);
}
}
return self::getHiddenFields($params);
}
/**
* create hidden form fields from array with name => value
*
* <code>
* $values = array(
* 'aaa' => aaa,
* 'bbb' => array(
* 'bbb_0',
* 'bbb_1',
* ),
* 'ccc' => array(
* 'a' => 'ccc_a',
* 'b' => 'ccc_b',
* ),
* );
* echo Url::getHiddenFields($values);
*
* // produces:
* <input type="hidden" name="aaa" Value="aaa">
* <input type="hidden" name="bbb[0]" Value="bbb_0">
* <input type="hidden" name="bbb[1]" Value="bbb_1">
* <input type="hidden" name="ccc[a]" Value="ccc_a">
* <input type="hidden" name="ccc[b]" Value="ccc_b">
* </code>
*
* @param array $values hidden values
* @param string $pre prefix
* @param bool $is_token if token already added in hidden input field
*
* @return string form fields of type hidden
*/
public static function getHiddenFields(array $values, $pre = '', $is_token = false)
{
$fields = '';
/* Always include token in plain forms */
if ($is_token === false && isset($_SESSION[' PMA_token '])) {
$values['token'] = $_SESSION[' PMA_token '];
}
foreach ($values as $name => $value) {
if (! empty($pre)) {
$name = $pre . '[' . $name . ']';
}
if (is_array($value)) {
$fields .= self::getHiddenFields($value, $name, true);
} else {
// do not generate an ending "\n" because
// Url::getHiddenInputs() is sometimes called
// from a JS document.write()
$fields .= '<input type="hidden" name="' . htmlspecialchars((string) $name)
. '" value="' . htmlspecialchars((string) $value) . '">';
}
}
return $fields;
}
/**
* Generates text with URL parameters.
*
* <code>
* $params['myparam'] = 'myvalue';
* $params['db'] = 'mysql';
* $params['table'] = 'rights';
* // note the missing ?
* echo 'script.php' . Url::getCommon($params);
* // produces with cookies enabled:
* // script.php?myparam=myvalue&db=mysql&table=rights
* // with cookies disabled:
* // script.php?server=1&lang=en&myparam=myvalue&db=mysql
* // &table=rights
*
* // note the missing ?
* echo 'script.php' . Url::getCommon();
* // produces with cookies enabled:
* // script.php
* // with cookies disabled:
* // script.php?server=1&lang=en
* </code>
*
* @param array<string,int|string|bool> $params optional, Contains an associative array with url params
* @param string $divider optional character to use instead of '?'
* @param bool $encrypt whether to encrypt URL params
*
* @return string string with URL parameters
*/
public static function getCommon(array $params = [], $divider = '?', $encrypt = true)
{
return self::getCommonRaw($params, $divider, $encrypt);
}
/**
* Generates text with URL parameters.
*
* <code>
* $params['myparam'] = 'myvalue';
* $params['db'] = 'mysql';
* $params['table'] = 'rights';
* // note the missing ?
* echo 'script.php' . Url::getCommon($params);
* // produces with cookies enabled:
* // script.php?myparam=myvalue&db=mysql&table=rights
* // with cookies disabled:
* // script.php?server=1&lang=en&myparam=myvalue&db=mysql
* // &table=rights
*
* // note the missing ?
* echo 'script.php' . Url::getCommon();
* // produces with cookies enabled:
* // script.php
* // with cookies disabled:
* // script.php?server=1&lang=en
* </code>
*
* @param array<string|int,int|string|bool> $params optional, Contains an associative array with url params
* @param string $divider optional character to use instead of '?'
* @param bool $encrypt whether to encrypt URL params
*
* @return string string with URL parameters
*/
public static function getCommonRaw(array $params = [], $divider = '?', $encrypt = true)
{
global $config;
// avoid overwriting when creating navigation panel links to servers
if (
isset($GLOBALS['server'])
&& $GLOBALS['server'] != $GLOBALS['cfg']['ServerDefault']
&& ! isset($params['server'])
&& ! $config->get('is_setup')
) {
$params['server'] = $GLOBALS['server'];
}
// Can be null when the user is missing an extension.
if ($config !== null && empty($config->getCookie('pma_lang')) && ! empty($GLOBALS['lang'])) {
$params['lang'] = $GLOBALS['lang'];
}
$query = self::buildHttpQuery($params, $encrypt);
if (($divider !== '?' && $divider !== '&') || strlen($query) > 0) {
return $divider . $query;
}
return '';
}
/**
* @param array<int|string, mixed> $params
* @param bool $encrypt whether to encrypt URL params
*
* @return string
*/
public static function buildHttpQuery($params, $encrypt = true)
{
global $config;
$separator = self::getArgSeparator();
if (! $encrypt || ! $config->get('URLQueryEncryption')) {
return http_build_query($params, '', $separator);
}
$data = $params;
$keys = [
'db',
'table',
'field',
'sql_query',
'sql_signature',
'where_clause',
'goto',
'back',
'message_to_show',
'username',
'hostname',
'dbname',
'tablename',
'checkprivsdb',
'checkprivstable',
];
$paramsToEncrypt = [];
foreach ($params as $paramKey => $paramValue) {
if (! in_array($paramKey, $keys)) {
continue;
}
$paramsToEncrypt[$paramKey] = $paramValue;
unset($data[$paramKey]);
}
if ($paramsToEncrypt !== []) {
$data['eq'] = self::encryptQuery((string) json_encode($paramsToEncrypt));
}
return http_build_query($data, '', $separator);
}
public static function encryptQuery(string $query): string
{
$crypto = new Crypto();
return strtr(base64_encode($crypto->encrypt($query)), '+/', '-_');
}
public static function decryptQuery(string $query): ?string
{
$crypto = new Crypto();
return $crypto->decrypt(base64_decode(strtr($query, '-_', '+/')));
}
/**
* Returns url separator
*
* extracted from arg_separator.input as set in php.ini
* we do not use arg_separator.output to avoid problems with & and &
*
* @param string $encode whether to encode separator or not,
* currently 'none' or 'html'
*
* @return string character used for separating url parts usually ; or &
*/
public static function getArgSeparator($encode = 'none')
{
static $separator = null;
static $html_separator = null;
if ($separator === null) {
// use separators defined by php, but prefer ';'
// as recommended by W3C
// (see https://www.w3.org/TR/1999/REC-html401-19991224/appendix
// /notes.html#h-B.2.2)
$arg_separator = (string) ini_get('arg_separator.input');
if (str_contains($arg_separator, ';')) {
$separator = ';';
} elseif (strlen($arg_separator) > 0) {
$separator = $arg_separator[0];
} else {
$separator = '&';
}
$html_separator = htmlentities($separator);
}
switch ($encode) {
case 'html':
return $html_separator;
case 'text':
case 'none':
default:
return $separator;
}
}
/**
* @param string $route Route to use
* @param array $additionalParameters Additional URL parameters
*/
public static function getFromRoute(string $route, array $additionalParameters = []): string
{
return 'index.php?route=' . $route . self::getCommon($additionalParameters, '&');
}
}