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class.tx_realurl.php
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class.tx_realurl.php
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<?php
/***************************************************************
* Copyright notice
*
* (c) 2004 Kasper Skaarhoj (kasper@typo3.com)
* (c) 2005-2010 Dmitry Dulepov (dmitry@typo3.org)
* All rights reserved
*
* This script is part of the Typo3 project. The Typo3 project is
* free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The GNU General Public License can be found at
* http://www.gnu.org/copyleft/gpl.html.
* A copy is found in the textfile GPL.txt and important notices to the license
* from the author is found in LICENSE.txt distributed with these scripts.
*
*
* This script is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* This copyright notice MUST APPEAR in all copies of the script!
***************************************************************/
/**
* Class for creating and parsing Speaking Urls
*
* $Id$
*
* @author Kasper Skaarhoj <kasper@typo3.com>
* @author Dmitry Dulepov <dmitry@typo3.org>
*/
/**
* Class for creating and parsing Speaking Urls
* This class interfaces with hooks in TYPO3 inside tslib_fe (for parsing speaking URLs to GET parameters) and in t3lib_tstemplate (for parsing GET parameters into a speaking URL)
*
* @author Kasper Skaarhoj <kasper@typo3.com>
* @author Dmitry Dulepov <dmitry@typo3.org>
* @package TYPO3
* @subpackage tx_realurl
*/
class tx_realurl {
// External, static
var $NA = '-'; // Substitute value for "blank" values
var $maxLookUpLgd = 100; // Max. length of look-up strings. Just a "brake"
var $prefixEnablingSpURL = 'index.php'; // Only work Speaking URL on URLs starting with "index.php"
var $decodeCacheTTL = 1; // TTL for decode cache, default is 1 day.
var $encodeCacheTTL = 1; // TTL for encode cache, default is 1 day.
// Internal
/** @var tx_realurl_apiwrapper */
protected $apiWrapper;
/** @var tslib_fe */
var $pObj; // tslib_fe / GLOBALS['TSFE'] (for ->decodeSpURL())
var $extConf; // Configuration for extension, from $TYPO3_CONF_VARS['EXTCONF']['realurl']
var $adminJumpSet = FALSE; // Is set true (->encodeSpURL) if AdminJump is active in some way. Is set false again when captured first time!
var $fe_user_prefix_set = FALSE; // Is set true (->encodeSpURL) if there is a frontend user logged in
var $filePart; // Contains the filename when a Speaking URL is decoded.
var $dirParts; // All directory parts of the string
var $orig_paramKeyValues = array(); // Contains the index of GETvars that the URL had when the encoding began.
var $appendedSlash = false; // Set true if slash is appended
var $encodePageId = 0; // Set with the page id during encoding. for internal use only.
var $speakingURIpath_procValue = ''; // For decoding, the path we are processing.
var $disableDecodeCache = FALSE; // If set internally, decode caching is disabled. Used when a 303 header is set in tx_realurl_advanced.
var $decode_editInBackend = FALSE; // If set (in adminjump function) then we will redirect to edit the found page id in the backend.
var $encodeError = FALSE; // If set true encoding failed , probably because the url was outside of root line - and the input url is returned directly.
var $host = ''; // Current host name. Set in setConfig()
/**
* Additional values to use when creating chash cache. This works, for
* example, when using _DOMAINS and cHash for links that do not really
* need a cHash.
*
* @var array
*/
protected $additionalParametersForChash;
/**
* Actual host name (configuration key) for the current request. This can
* be different from the $this->host if there are host aliases.
*
* @var string
*/
protected $hostConfigured = '';
var $multidomain = false;
var $urlPrepend = array();
var $useMySQLExtendedSyntax = false;
/**
* Holds a uid of the detected language during decoding to limit search of
* titles only to this language. Valid values are:
* -1 - no language detected
* 0 - default language (only if really detected!)
* >0 - a language uid taken from preVars or _DOMAINS (corresponds to uid in sys_languages table)
*
* @var int
*/
protected $detectedLanguage = -1;
/**
* Inidicates wwether devLog is enabled
*
* @var true
*/
protected $enableDevLog = false;
/**
* Contains a request id. This is to simplify identification of a single
* request when the site is accessed concurently
*
* @var string
*/
protected $devLogId;
/**
* Mime type that can be set according to the file extension (decoding only).
*
* @var string
*/
protected $mimeType = null;
var $enableStrictMode = false;
var $enableChashDebug = false;
/**
* If non-empty, corresponding URL query parameter will be ignored in preVars
* (note: preVars only!). This is necessary for _DOMAINS feature. This value
* is set to empty in adjustConfigurationByHostEncode().
*
* @see tx_realurl::adjustConfigurationByHostEncode()
* @see tx_realurl::encodeSpURL_doEncode()
* @var string
*/
protected $ignoreGETvar;
/**
* Contains URL parameters that were merged into URL. This is necessary
* if cHash has to be recalculated due to bypassed parameters. Used during
* encoding only.
*
* @var array
* @see http://bugs.typo3.org/view.php?id=11219
*/
protected $cHashParameters;
/**
* Indicates wether cHash should be rebuilt for the URL. Used during
* encoding only.
*
* @var boolean
* @see http://bugs.typo3.org/view.php?id=11219
*/
protected $rebuildCHash;
/************************************
*
* Translate parameters to a Speaking URL (t3lib_tstemplate::linkData)
*
************************************/
/**
* Creates an instance of this class
*/
public function __construct() {
$this->apiWrapper = tx_realurl_apiwrapper::getInstance();
if (!$this->apiWrapper->isExtLoaded('dbal')) {
// allow to use the MySQL features of 5.x with mysqli
$this->useMySQLExtendedSyntax = TRUE;
}
$sysconf = (array)unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['realurl']);
$this->enableStrictMode = (bool)$sysconf['enableStrictMode'];
$this->enableChashUrlDebug = (bool)$sysconf['enableChashUrlDebug'];
$this->initDevLog($sysconf);
}
/**
* Initializes devLog support
*
* @param array $sysconf
* @return void
*/
protected function initDevLog(array $sysconf) {
$this->enableDevLog = (boolean)$sysconf['enableDevLog'];
if ($this->enableDevLog) {
$this->devLogId = (isset($_SERVER['UNIQUE_ID']) ? $_SERVER['UNIQUE_ID'] : uniqid(''));
}
}
/**
* Translates a URL with query string (GET parameters) into Speaking URL.
* Called from t3lib_tstemplate::linkData
*
* @param array Array of parameters from t3lib_tstemplate::linkData - the function creating all links inside TYPO3
* @return void
*/
public function encodeSpURL(&$params) {
$this->devLog('Entering encodeSpURL for ' . $params['LD']['totalURL']);
if ($this->isInWorkspace()) {
$this->devLog('Workspace detected. Not doing anything!');
return;
}
if (!$params['TCEmainHook']) {
// Return directly, if simulateStaticDocuments is set
if ($GLOBALS['TSFE']->config['config']['simulateStaticDocuments']) {
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TT']->setTSlogMessage('SimulateStaticDocuments is enabled. RealURL disables itself.', 2);
return;
}
// Return directly, if realurl is not enabled
if (!$GLOBALS['TSFE']->config['config']['tx_realurl_enable']) {
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TT']->setTSlogMessage('RealURL is not enabled in TS setup. Finished.');
return;
}
}
// Checking prefix
$prefix = $GLOBALS['TSFE']->absRefPrefix . $this->prefixEnablingSpURL;
if (substr($params['LD']['totalURL'], 0, strlen($prefix)) != $prefix) {
return;
}
$this->devLog('Starting URL encode');
// Initializing config / request URL
$this->setConfig();
$adjustedConfiguration = $this->adjustConfigurationByHost('encode', $params);
$this->adjustRootPageId();
$internalExtras = array();
// Init "Admin Jump"; If frontend edit was enabled by the current URL of the page, set it again in the generated URL (and disable caching!)
if (!$params['TCEmainHook']) {
if ($GLOBALS['TSFE']->applicationData['tx_realurl']['adminJumpActive']) {
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TSFE']->set_no_cache();
$this->adminJumpSet = TRUE;
$internalExtras['adminJump'] = 1;
}
// If there is a frontend user logged in, set fe_user_prefix
if (is_array($GLOBALS['TSFE']->fe_user->user)) {
$this->fe_user_prefix_set = TRUE;
$internalExtras['feLogin'] = 1;
}
}
// Parse current URL into main parts
$uParts = parse_url($params['LD']['totalURL']);
// Look in memory cache first
$urlData = $this->hostConfigured . ' | ' . $uParts['query'];
$newUrl = $this->encodeSpURL_encodeCache($urlData, $internalExtras);
if (!$newUrl) {
// Encode URL
$newUrl = $this->encodeSpURL_doEncode($uParts['query'], $params['LD']['totalURL']);
// Set new URL in cache
$this->encodeSpURL_encodeCache($urlData, $internalExtras, $newUrl);
}
unset($urlData);
// Adding any anchor there might be
if ($uParts['fragment']) {
$newUrl .= '#' . $uParts['fragment'];
}
// Reapply config.absRefPrefix if necessary
if ((!isset($this->extConf['init']['reapplyAbsRefPrefix']) || $this->extConf['init']['reapplyAbsRefPrefix']) && $GLOBALS['TSFE']->absRefPrefix) {
// Prevent // in case of absRefPrefix ending with / and emptyUrlReturnValue=/
if (substr($GLOBALS['TSFE']->absRefPrefix, -1, 1) == '/' && substr($newUrl, 0, 1) == '/') {
$newUrl = substr($newUrl, 1);
}
$newUrl = $GLOBALS['TSFE']->absRefPrefix . $newUrl;
}
// Set prepending of URL (e.g. hostname) which will be processed by typoLink_PostProc hook in tslib_content
if (isset($adjustedConfiguration['urlPrepend']) && !isset($this->urlPrepend[$newUrl])) {
$urlPrepend = $adjustedConfiguration['urlPrepend'];
if (substr($urlPrepend, -1) == '/') {
$urlPrepend = substr($urlPrepend, 0, -1);
}
$this->urlPrepend[$newUrl] = $urlPrepend;
}
// Call hooks
if (is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl']['encodeSpURL_postProc'])) {
foreach($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl']['encodeSpURL_postProc'] as $userFunc) {
$hookParams = array(
'pObj' => &$this,
'params' => $params,
'URL' => &$newUrl,
);
$this->apiWrapper->callUserFunction($userFunc, $hookParams, $this);
}
}
// Setting the encoded URL in the LD key of the params array - that value is passed by reference and thus returned to the linkData function!
$params['LD']['totalURL'] = $newUrl;
}
/**
* Prepends URL generated by RealURL by something (e.g. a host).
* This method gets called by the typoLink_PostProc hook in tslib_content:
*
* @param array $parameters Array of parameters from typoLink_PostProc hook in tslib_content
* @param tslib_cObj $pObj Reference to the calling tslib_content instance
* @return void
*/
public function encodeSpURL_urlPrepend(&$parameters, &$pObj) {
if (isset($parameters['finalTagParts']['url'])) {
// We must check for absolute URLs here because typolink can force
// absolute URLs for pages with restricted access. It prepends
// current host always. See http://bugs.typo3.org/view.php?id=18200
$testUrl = $parameters['finalTagParts']['url'];
if (preg_match('/^https?:\/\/[^\/]+\//', $testUrl)) {
$testUrl = preg_replace('/https?:\/\/[^\/]+(.+)$/', '\1', $testUrl);
}
if (isset($this->urlPrepend[$testUrl])) {
$urlKey = $url = $testUrl;
// Remove absRefPrefix if necessary
$absRefPrefixLength = strlen($GLOBALS['TSFE']->absRefPrefix);
if ($absRefPrefixLength != 0 && substr($url, 0, $absRefPrefixLength) == $GLOBALS['TSFE']->absRefPrefix) {
$url = substr($url, $absRefPrefixLength);
}
$url = $this->urlPrepend[$urlKey] . ($url{0} != '/' ? '/' : '') . $url;
unset($this->urlPrepend[$testUrl]);
// Adjust the URL
$parameters['finalTag'] = str_replace(
'"' . htmlspecialchars($parameters['finalTagParts']['url']) . '"',
'"' . htmlspecialchars($url) . '"',
$parameters['finalTag']
);
$parameters['finalTagParts']['url'] = $url;
$pObj->lastTypoLinkUrl = $url;
}
}
}
/**
* Transforms a query string into a speaking URL according to the configuration in ->extConf
*
* @param string $inputQuery Input query string
* @param string $origUrl Original URL
* @return string Output Speaking URL (with as many GET parameters encoded into the URL as possible).
* @see encodeSpURL()
*/
protected function encodeSpURL_doEncode($inputQuery, $origUrl = '') {
$this->cHashParameters = array();
$this->rebuildCHash = false;
// Extract all GET parameters into an ARRAY
$paramKeyValues = array();
$GETparams = explode('&', $inputQuery);
foreach ($GETparams as $paramAndValue) {
list($p, $v) = explode('=', $paramAndValue, 2);
$p = urldecode($p);
if ($p != '') {
$paramKeyValues[$p] = urldecode($v);
}
}
$this->orig_paramKeyValues = $paramKeyValues;
// Init array in which to collect the "directories" of the URL
$pathParts = array();
// Pre-vars
$this->encodeSpURL_setSequence($this->extConf['preVars'], $paramKeyValues, $pathParts);
// Create path from ID value
$page_id = $this->encodePageId = $paramKeyValues['id'];
$this->encodeError = FALSE;
$this->encodeSpURL_pathFromId($paramKeyValues, $pathParts);
if ($this->encodeError) {
return $origUrl;
}
// Fixed Post-vars
$fixedPostVarSetCfg = $this->getPostVarSetConfig($page_id, 'fixedPostVars');
if (is_array($fixedPostVarSetCfg)) {
$this->encodeSpURL_setSequence($fixedPostVarSetCfg, $paramKeyValues, $pathParts);
}
// Post var sets
$postVarSetCfg = $this->getPostVarSetConfig($page_id);
$this->encodeSpURL_gettingPostVarSets($paramKeyValues, $pathParts, $postVarSetCfg);
// Compile Speaking URL path
$pathParts = $this->cleanUpPathParts($pathParts);
// Add filename, if any
$newUrl = $this->createURLWithFileName($paramKeyValues, $pathParts);
// Fix empty URLs
$newUrl = $this->fixEmptyUrl($newUrl);
// Clear ignored var
if (isset($paramKeyValues[$this->ignoreGETvar])) {
unset($paramKeyValues[$this->ignoreGETvar]);
}
// Process cHash
$this->encodeSpURL_cHashProcessing($newUrl, $paramKeyValues);
// Manage remaining GET parameters
if (count($paramKeyValues)) {
$q = array();
foreach ($paramKeyValues as $k => $v) {
$q[] = $this->rawurlencodeParam($k) . '=' . rawurlencode($v);
}
$newUrl .= '?' . implode('&', $q);
}
// Memory clean up
unset($this->cHashParameters);
// Return new, Speaking URL encoded URL
return $newUrl;
}
/**
* Creating the TYPO3 Page path into $pathParts from the "id" value in $paramKeyValues
*
* @param array $paramKeyValues Current URLs GETvar => value pairs in array, being translated into pathParts: Here we take out "id" GET var.
* @param array $pathParts Numerical array of path-parts, continously being filled. Here, the "page path" is being added by which-ever method is preferred. Passed by reference.
* @return void Unsetting "id" from $paramKeyValues / Setting page path in $pathParts
* @see encodeSpURL_doEncode()
*/
protected function encodeSpURL_pathFromId(&$paramKeyValues, &$pathParts) {
// Return immediately if no GET vars remain to be translated
if (!count($paramKeyValues)) {
return;
}
// Creating page path
switch ((string)$this->extConf['pagePath']['type']) {
case 'user':
$params = array('paramKeyValues' => &$paramKeyValues, 'pathParts' => &$pathParts, 'pObj' => &$this, 'conf' => $this->extConf['pagePath'], 'mode' => 'encode');
$this->apiWrapper->callUserFunction($this->extConf['pagePath']['userFunc'], $params, $this);
break;
default: // Default: Just passing through the ID/alias of the page:
$pathParts[] = rawurlencode($paramKeyValues['id']);
unset($paramKeyValues['id']);
break;
}
}
/**
* Traversing setup for variables AFTER the page path.
*
* @param array $paramKeyValues Current URLs GETvar => value pairs in array, being translated into pathParts, continously shortend. Passed by reference.
* @param array $pathParts Numerical array of path-parts, continously being filled. Passed by reference.
* @param array $postVarSetCfg config
* @return void Removing values from $paramKeyValues / Setting values in $pathParts
* @see encodeSpURL_doEncode(), decodeSpURL_settingPostVarSets()
*/
protected function encodeSpURL_gettingPostVarSets(&$paramKeyValues, &$pathParts, $postVarSetCfg) {
// Traverse setup for postVarSets. If any of those matches
if (is_array($postVarSetCfg)) {
foreach ($postVarSetCfg as $keyWord => $cfg) {
switch ((string)$cfg['type']) {
case 'admin':
if ($this->adminJumpSet) {
$pathParts[] = rawurlencode($keyWord);
$this->adminJumpSet = FALSE; // ... this makes sure that any subsequent "admin-jump" activation is set...
}
break;
case 'single':
$this->encodeSpURL_setSingle($keyWord, $cfg['keyValues'], $paramKeyValues, $pathParts);
break;
default:
unset($cfg['type']); // Just to make sure it is NOT set.
foreach ($cfg as $Gcfg) {
if (isset($paramKeyValues[$Gcfg['GETvar']])) {
$pathParts[] = rawurlencode($keyWord);
$pathPartsSize = count($pathParts);
$cHashParameters = $this->cHashParameters;
$this->encodeSpURL_setSequence($cfg, $paramKeyValues, $pathParts);
// If (1) nothing was added or (2) only empty segments added, remove this part completely
if (count($pathParts) == $pathPartsSize) {
array_pop($pathParts);
}
else {
$dropSegment = true;
for ($i = $pathPartsSize; $i < count($pathParts); $i++) {
if ($pathParts[$i] != '') {
$dropSegment = false;
break;
}
}
if ($dropSegment) {
$pathParts = array_slice($pathParts, 0, $pathPartsSize - 1);
// Nothing goes to cHash from this part.
$this->cHashParameters = $cHashParameters;
}
}
break;
}
}
break;
}
}
}
}
/**
* Setting a filename if any filename is configured to match remaining variables.
*
* @param array $paramKeyValues Current URLs GETvar => value pairs in array, being translated into pathParts, continously shortend. Passed by reference.
* @return string Returns the filename to prepend, if any
* @see encodeSpURL_doEncode(), decodeSpURL_fileName()
*/
protected function encodeSpURL_fileName(array &$paramKeyValues) {
// Look if any filename matches the remaining variables
if (is_array($this->extConf['fileName']['index'])) {
foreach ($this->extConf['fileName']['index'] as $keyWord => $cfg) {
$pathParts = array();
if ($this->encodeSpURL_setSingle($keyWord, $cfg['keyValues'], $paramKeyValues, $pathParts)) {
return $keyWord != '_DEFAULT' ? $keyWord : '';
}
}
}
return '';
}
/**
* Traverses a set of GETvars configured (array of segments)
*
* @param array $varSetCfg Array of segment-configurations.
* @param array $paramKeyValues Current URLs GETvar => value pairs in array, being translated into pathParts, continously shortend. Passed by reference.
* @param array $pathParts Numerical array of path-parts, continously being filled. Passed by reference.
* @return void Removing values from $paramKeyValues / Setting values in $pathParts
* @see encodeSpURL_doEncode(), encodeSpURL_gettingPostVarSets(), decodeSpURL_getSequence()
*/
protected function encodeSpURL_setSequence($varSetCfg, &$paramKeyValues, &$pathParts) {
// Traverse array of segments configuration
$prevVal = '';
if (is_array($varSetCfg)) {
foreach ($varSetCfg as $setup) {
switch ($setup['type']) {
case 'action':
$pathPartVal = '';
// Look for admin jump
if ($this->adminJumpSet) {
foreach ($setup['index'] as $pKey => $pCfg) {
if ((string)$pCfg['type'] == 'admin') {
$pathPartVal = $pKey;
$this->adminJumpSet = FALSE;
break;
}
}
}
// Look for frontend user login
if ($this->fe_user_prefix_set) {
foreach ($setup['index'] as $pKey => $pCfg) {
if ((string)$pCfg['type'] == 'feLogin') {
$pathPartVal = $pKey;
$this->fe_user_prefix_set = FALSE;
break;
}
}
}
// If either pathPartVal has been set OR if _DEFAULT type is not bypass, set a value
if (strlen($pathPartVal) || $setup['index']['_DEFAULT']['type'] != 'bypass') {
// If admin jump did not set $pathPartVal, look for first pass-through (no "type" set)
if (!strlen($pathPartVal)) {
foreach ($setup['index'] as $pKey => $pCfg) {
if (!strlen($pCfg['type'])) {
$pathPartVal = $pKey;
break;
}
}
}
// Setting part of path
$pathParts[] = rawurlencode(strlen($pathPartVal) ? $pathPartVal : $this->NA);
}
break;
default:
if (!is_array($setup['cond']) || $this->checkCondition($setup['cond'], $prevVal)) {
// Looking if the GET var is found in parameter index
$GETvar = $setup['GETvar'];
if ($GETvar == $this->ignoreGETvar) {
// Do not do anything with this var!
continue;
}
$parameterSet = isset($paramKeyValues[$GETvar]);
$GETvarVal = $parameterSet ? $paramKeyValues[$GETvar] : '';
// Set reverse map
$revMap = is_array($setup['valueMap']) ? array_flip($setup['valueMap']) : array();
if (isset($revMap[$GETvarVal])) {
$prevVal = $GETvarVal;
$pathParts[] = rawurlencode($revMap[$GETvarVal]);
$this->cHashParameters[$GETvar] = $GETvarVal;
} elseif ($setup['noMatch'] == 'bypass') {
// If no match in reverse value map and "bypass" is set, remove the parameter from the URL
// Must rebuild cHash because we remove a parameter!
$this->rebuildCHash |= $parameterSet;
} elseif ($setup['noMatch'] == 'null') {
// If no match and "null" is set, then set "dummy" value
// Set "dummy" value (?)
$prevVal = '';
$pathParts[] = '';
$this->rebuildCHash |= $parameterSet;
} elseif ($setup['userFunc']) {
$params = array(
'pObj' => &$this,
'value' => $GETvarVal,
'decodeAlias' => false,
'pathParts' => &$pathParts,
'setup' => $setup
);
$prevVal = $GETvarVal;
$GETvarVal = $this->apiWrapper->callUserFunction($setup['userFunc'], $params, $this);
$pathParts[] = rawurlencode($GETvarVal);
$this->cHashParameters[$GETvar] = $prevVal;
} elseif (is_array($setup['lookUpTable'])) {
$prevVal = $GETvarVal;
$GETvarVal = $this->lookUpTranslation($setup['lookUpTable'], $GETvarVal);
$pathParts[] = rawurlencode($GETvarVal);
$this->cHashParameters[$GETvar] = $prevVal;
} elseif (isset($setup['valueDefault'])) {
$prevVal = $setup['valueDefault'];
$pathParts[] = rawurlencode($setup['valueDefault']);
$this->cHashParameters[$GETvar] = $setup['valueMap'][$setup['valueDefault']];
$this->rebuildCHash |= !$parameterSet;
} else {
$prevVal = $GETvarVal;
$pathParts[] = rawurlencode($GETvarVal);
$this->cHashParameters[$GETvar] = $prevVal;
$this->rebuildCHash |= !$parameterSet;
}
// Finally, unset GET var so it doesn't get processed once more
unset($paramKeyValues[$setup['GETvar']]);
}
break;
}
}
}
}
/**
* Traversing an array of GETvar => value pairs and checking if both variable names AND values are matching any found in $paramKeyValues; If so, the keyword representing those values is set and the GEtvars are unset from $paramkeyValues array
*
* @param string $keyWord Keyword to set as a representation of the GETvars configured.
* @param array $keyValues Array of GETvar => values which content in $paramKeyvalues must match exactly in order to be substituted with the keyword, $keyWord
* @param array $paramKeyValues Current URLs GETvar => value pairs in array, being translated into pathParts, continously shortend. Passed by reference.
* @param array $pathParts Numerical array of path-parts, continously being filled. Passed by reference.
* @return boolean Return true, if any value from $paramKeyValues was removed.
* @see encodeSpURL_fileName(), encodeSpURL_gettingPostVarSets(), decodeSpURL_getSingle()
*/
protected function encodeSpURL_setSingle($keyWord, $keyValues, &$paramKeyValues, &$pathParts) {
if (is_array($keyValues)) {
$allSet = TRUE;
// Check if all GETvars configured are found in $paramKeyValues
foreach ($keyValues as $getVar => $value) {
if (!isset($paramKeyValues[$getVar]) || strcmp($paramKeyValues[$getVar], $value)) {
$allSet = FALSE;
break;
}
}
// If all is set, unset the GETvars and set the value.
if ($allSet) {
$pathParts[] = rawurlencode($keyWord);
foreach ($keyValues as $getVar => $value) {
$this->cHashParameters[$getVar] = $value;
unset($paramKeyValues[$getVar]);
}
return TRUE;
}
}
return FALSE;
}
/**
* Setting / Getting encoded URL to/from cache (memory cache, but could be extended to database cache)
*
* @param string $urlData Host + the original URL with GET parameters - identifying the cached version to find
* @param array $internalExtras Array with extra data to include in encoding. This is flags if adminJump url or feLogin flags are set since these are NOT a part of the URL to encode and therefore are needed for the hash to be true.
* @param string $setEncodedURL If set, this URL will be cached as the encoded version of $urlToEncode. Otherwise the function will look for and return the cached version of $urlToEncode
* @return mixed If $setEncodedURL is true, this will be STORED as the cached version and the function returns false, otherwise the cached version is returned (string).
* @see encodeSpURL()
*/
protected function encodeSpURL_encodeCache($urlData, $internalExtras, $setEncodedURL = '') {
// Create hash string
$hash = md5($urlData . '///' . serialize($internalExtras));
if (!$setEncodedURL) { // Asking for cached encoded URL:
// First, check memory, otherwise ask database
if (!isset($GLOBALS['TSFE']->applicationData['tx_realurl']['_CACHE'][$hash]) && $this->extConf['init']['enableUrlEncodeCache']) {
/** @noinspection PhpUndefinedMethodInspection */
$res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('content', 'tx_realurl_urlencodecache',
'url_hash=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($hash, 'tx_realurl_urlencodecache') .
' AND tstamp>' . strtotime('midnight', time() - 24 * 3600 * $this->encodeCacheTTL));
/** @noinspection PhpUndefinedMethodInspection */
if (false != ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res))) {
$GLOBALS['TSFE']->applicationData['tx_realurl']['_CACHE'][$hash] = $row['content'];
}
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->sql_free_result($res);
}
return $GLOBALS['TSFE']->applicationData['tx_realurl']['_CACHE'][$hash];
}
else { // Setting encoded URL in cache:
// No caching if FE editing is enabled!
if (!$this->isBEUserLoggedIn()) {
$GLOBALS['TSFE']->applicationData['tx_realurl']['_CACHE'][$hash] = $setEncodedURL;
// If the page id is NOT an integer, it's an alias we have to look up
if (!$this->apiWrapper->testInt($this->encodePageId)) {
$this->encodePageId = $this->pageAliasToID($this->encodePageId);
}
if ($this->extConf['init']['enableUrlEncodeCache'] && $this->canCachePageURL($this->encodePageId)) {
$insertFields = array(
'url_hash' => $hash,
'origparams' => $urlData,
'internalExtras' => count($internalExtras) ? serialize($internalExtras) : '',
'content' => $setEncodedURL,
'page_id' => $this->encodePageId,
'tstamp' => time()
);
if ($this->useMySQLExtendedSyntax) {
/** @noinspection PhpUndefinedMethodInspection */
$query = $GLOBALS['TYPO3_DB']->INSERTquery('tx_realurl_urlencodecache', $insertFields);
$query .= ' ON DUPLICATE KEY UPDATE tstamp=' . $insertFields['tstamp'];
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->sql_query($query);
} else {
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->sql_query('START TRANSACTION');
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->exec_DELETEquery('tx_realurl_urlencodecache', 'url_hash=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($hash, 'tx_realurl_urlencodecache'));
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->exec_INSERTquery('tx_realurl_urlencodecache', $insertFields);
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->sql_query('COMMIT');
}
}
}
}
return '';
}
/**
* Will store a record in a cachetable holding the value of the "cHash" parameter in a link, if any.
* Background:
* The "cHash" parameter is a hash over the values in the Query String of a URL and it "authenticates" the URL to the frontend so we can safely cache page content with that parameter combination.
* Technically, there is no problem with the "cHash" parameter - it is like any other parameter something we could encode with Speaking URLs. The problem is: a cHash string is not "speaking" (and never will be!)
* So; the only option we are left with if we want to remove the "?cHash=...:" remains in URLs and at the same time do not want to include it in the virtual path is; store it in the database!
* This is what this function does: Stores a record in the database which relates the cHash value to a hash id of the URL. This is done ONLY if the "cHash" parameter is the only one left which would make the URL non-speaking. Otherwise it is left behind.
* Obviously, this whole thing only works if there is a function in the decode part which will look up the cHash again and include it in the GET parameters resolved from the Speaking URL - but there is of course...
*
* @param string $newUrl URL path (being hashed to an integer and cHash value related to this.)
* @param array $paramKeyValues Params $array array, passed by reference. If "cHash" is the only value left it will be put in the cache table and the value is unset in the array.
* @return void
* @see decodeSpURL_cHashCache()
*/
protected function encodeSpURL_cHashProcessing($newUrl, &$paramKeyValues) {
// If "cHash" is the ONLY parameter left...
// (if there are others our problem is that the cHash probably covers those
// as well and if we include the cHash anyways we might get duplicates for
// the same speaking URL in the cache table!)
if (isset($paramKeyValues['cHash'])) {
if ($this->rebuildCHash) {
$cHashParameters = array_merge($this->cHashParameters, $paramKeyValues);
unset($cHashParameters['cHash']);
$cHashParameters = $this->apiWrapper->getRelevantChashParameters($this->apiWrapper->implodeArrayForUrl('', $cHashParameters));
unset($cHashParameters['']);
if (count($cHashParameters) == 1) {
// No cHash needed.
unset($paramKeyValues['cHash']);
}
elseif (count($cHashParameters) > 1) {
$paramKeyValues['cHash'] = $this->apiWrapper->calculateChash($cHashParameters);
}
unset($cHashParameters);
}
if ($this->extConf['init']['enableCHashCache'] && count($paramKeyValues) == 1) {
$stringForHash = $newUrl;
if (count($this->additionalParametersForChash)) {
$stringForHash .= '|' . serialize($this->additionalParametersForChash);
}
$spUrlHash = md5($stringForHash);
/** @noinspection PhpUndefinedMethodInspection */
$spUrlHashQuoted = $GLOBALS['TYPO3_DB']->fullQuoteStr($spUrlHash, 'tx_realurl_chashcache');
// first, look if a cHash is already there for this SpURL
/** @noinspection PhpUndefinedMethodInspection */
list($row) = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows('chash_string',
'tx_realurl_chashcache', 'spurl_hash=' . $spUrlHashQuoted);
if (!is_array($row)) {
// Nothing found, insert to the cache
$data = array(
'spurl_hash' => $spUrlHash,
'spurl_string' => $this->enableChashUrlDebug ? $stringForHash : null,
'chash_string' => $paramKeyValues['cHash']
);
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->exec_INSERTquery('tx_realurl_chashcache', $data);
}
else {
// If one found, check if it is different, and if so update
if ($row['chash_string'] != $paramKeyValues['cHash']) {
// If that chash_string is different from the one we want to
// insert, that might be a bug or mean that encryptionKey was
// changed so cHash values will be different now
// In any case we will just silently update the value
$data = array(
'chash_string' => $paramKeyValues['cHash']
);
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TYPO3_DB']->exec_UPDATEquery('tx_realurl_chashcache',
'spurl_hash=' . $spUrlHashQuoted, $data);
}
}
// Unset "cHash" (and array should now be empty!)
unset($paramKeyValues['cHash']);
}
}
}
/************************************
*
* Translate a Speaking URL to parameters (tslib_fe)
*
************************************/
/**
* Parse speaking URL and translate it to parameters understood by TYPO3
* Function is called from tslib_fe
* The overall format of a speaking URL is these five parts [TYPO3_SITE_URL] / [pre-var] / [page-identification] / [post-vars] / [file.ext]
* - "TYPO3_SITE_URL" is fixed value from the environment,
* - "pre-var" is any number of segments separated by "/" mapping to GETvars AND with a known lenght,
* - "page-identification" identifies the page id in TYPO3 possibly with multiple segments separated by "/" BUT with an UNKNOWN length,
* - "post-vars" is sets of segments offering the same features as "pre-var"
* - "file.ext" is any filename that might apply
*
* @param array $params Params for hook
* @return void Setting internal variables.
*/
public function decodeSpURL($params) {
$this->devLog('Entering decodeSpURL');
// Setting parent object reference (which is $GLOBALS['TSFE'])
$this->pObj = &$params['pObj'];
// Initializing config / request URL
$this->setConfig();
$this->adjustConfigurationByHost('decode');
$this->adjustRootPageId();
// If there has been a redirect (basically; we arrived here otherwise than via "index.php" in the URL) this can happend either due to a CGI-script or because of reWrite rule. Earlier we used $GLOBALS['HTTP_SERVER_VARS']['REDIRECT_URL'] to check but...
if ($this->pObj->siteScript && substr($this->pObj->siteScript, 0, 9) != 'index.php' && substr($this->pObj->siteScript, 0, 1) != '?') {
// Getting the path which is above the current site url
// For instance "first/second/third/index.html?¶m1=value1¶m2=value2"
// should be the result of the URL
// "http://localhost/typo3/dev/dummy_1/first/second/third/index.html?¶m1=value1¶m2=value2"
// Note: sometimes in fcgi installations it is absolute, so we have to make it
// relative to work properly.
$speakingURIpath = $this->pObj->siteScript{0} == '/' ? substr($this->pObj->siteScript, 1) : $this->pObj->siteScript;
// Call hooks
if (is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl']['decodeSpURL_preProc'])) {
foreach($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['realurl']['decodeSpURL_preProc'] as $userFunc) {
$hookParams = array(
'pObj' => &$this,
'params' => $params,
'URL' => &$speakingURIpath,
);
$this->apiWrapper->callUserFunction($userFunc, $hookParams, $this);
}
}
// Append missing slash if configured for
if ($this->extConf['init']['appendMissingSlash']) {
$regexp = '~^([^\?]*[^/])(\?.*)?$~';
if (substr($speakingURIpath, -1, 1) == '?') {
$speakingURIpath = substr($speakingURIpath, 0, -1);
}
if (preg_match($regexp, $speakingURIpath)) { // Only process if a slash is missing:
$options = $this->apiWrapper->trimExplode(',', $this->extConf['init']['appendMissingSlash'], true);
if (in_array('ifNotFile', $options)) {
if (!preg_match('/\/[^\/\?]+\.[^\/]+(\?.*)?$/', '/' . $speakingURIpath)) {
$speakingURIpath = preg_replace($regexp, '\1/\2', $speakingURIpath);
$this->appendedSlash = true;
}
}
else {
$speakingURIpath = preg_replace($regexp, '\1/\2', $speakingURIpath);
$this->appendedSlash = true;
}
if ($this->appendedSlash && count($options) > 0) {
foreach ($options as $option) {
$matches = array();
if (preg_match('/^redirect(\[(30[1237])\])?$/', $option, $matches)) {
$code = count($matches) > 1 ? $matches[2] : 301;
$status = 'HTTP/1.1 ' . $code . ' TYPO3 RealURL redirect M' . __LINE__;
// Check path segment to be relative for the current site.
// parse_url() does not work with relative URLs, so we use it to test
if (!@parse_url($speakingURIpath, PHP_URL_HOST)) {
@ob_end_clean();
header($status);
header('Location: ' . $this->apiWrapper->locationHeaderUrl($speakingURIpath));
exit;
}
}
}
}
}
}
// If the URL is a single script like "123.1.html" it might be an "old" simulateStaticDocument request. If this is the case and support for this is configured, do NOT try and resolve it as a Speaking URL
$fI = $this->apiWrapper->split_fileref($speakingURIpath);
if (!$this->apiWrapper->testInt($this->pObj->id) && $fI['path'] == '' && $this->extConf['fileName']['defaultToHTMLsuffixOnPrev'] && $this->extConf['init']['respectSimulateStaticURLs']) {
// If page ID does not exist yet and page is on the root level and both
// respectSimulateStaticURLs and defaultToHTMLsuffixOnPrev are set, than
// ignore respectSimulateStaticURLs and attempt to resolve page id.
// See http://bugs.typo3.org/view.php?id=1530
/** @noinspection PhpUndefinedMethodInspection */
$GLOBALS['TT']->setTSlogMessage('decodeSpURL: ignoring respectSimulateStaticURLs due defaultToHTMLsuffixOnPrev for the root level page!)', 2);
$this->extConf['init']['respectSimulateStaticURLs'] = false;
}
if (!$this->extConf['init']['respectSimulateStaticURLs'] || $fI['path']) {
$this->devLog('RealURL powered decoding (TM) starting!');
// Parse path
$uParts = @parse_url($speakingURIpath);
if (!is_array($uParts)) {
$this->decodeSpURL_throw404('Current URL is invalid');
}
$speakingURIpath = $this->speakingURIpath_procValue = $uParts['path'];
// Redirecting if needed (exits if so).
$this->decodeSpURL_checkRedirects($speakingURIpath);
// Looking for cached information
$cachedInfo = $this->decodeSpURL_decodeCache($speakingURIpath);
// If no cached info was found, create it
if (!is_array($cachedInfo)) {
// Decode URL
$cachedInfo = $this->decodeSpURL_doDecode($speakingURIpath, $this->extConf['init']['enableCHashCache']);
// Storing cached information
$this->decodeSpURL_decodeCache($speakingURIpath, $cachedInfo);
}