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Bug #87652 ยป SoftReferenceIndex.php

Ralph Brugger, 2019-02-05 09:56

 
<?php
namespace TYPO3\CMS\Core\Database;

/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/

use TYPO3\CMS\Core\Database\Query\Restriction\BackendWorkspaceRestriction;
use TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
use TYPO3\CMS\Core\LinkHandling\LinkService;
use TYPO3\CMS\Core\Resource\File;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Frontend\Service\TypoLinkCodecService;

/**
* Soft Reference processing class
* "Soft References" are references to database elements, files, email addresses, URls etc.
* which are found in-text in content. The <link [page_id]> tag from typical bodytext fields
* are an example of this.
* This class contains generic parsers for the most well-known types
* which are default for most TYPO3 installations. Soft References can also be userdefined.
* The Soft Reference parsers are used by the system to find these references and process them accordingly in import/export actions and copy operations.
*
* Example of usage
* Soft References:
* if ($conf['softref'] && (strong)$value !== '')) { // Check if a TCA configured field has softreferences defined (see TYPO3 Core API document)
* $softRefs = \TYPO3\CMS\Backend\Utility\BackendUtility::explodeSoftRefParserList($conf['softref']); // Explode the list of softreferences/parameters
* if ($softRefs !== FALSE) { // If there are soft references
* foreach($softRefs as $spKey => $spParams) { // Traverse soft references
* $softRefObj = \TYPO3\CMS\Backend\Utility\BackendUtility::softRefParserObj($spKey); // create / get object
* if (is_object($softRefObj)) { // If there was an object returned...:
* $resultArray = $softRefObj->findRef($table, $field, $uid, $softRefValue, $spKey, $spParams); // Do processing
*
* Result Array:
* The Result array should contain two keys: "content" and "elements".
* "content" is a string containing the input content but possibly with tokens inside.
* Tokens are strings like {softref:[tokenID]} which is a placeholder for a value extracted by a softref parser
* For each token there MUST be an entry in the "elements" key which has a "subst" key defining the tokenID and the tokenValue. See below.
* "elements" is an array where the keys are insignificant, but the values are arrays with these keys:
* "matchString" => The value of the match. This is only for informational purposes to show what was found.
* "error" => An error message can be set here, like "file not found" etc.
* "subst" => array( // If this array is found there MUST be a token in the output content as well!
* "tokenID" => The tokenID string corresponding to the token in output content, {softref:[tokenID]}. This is typically an md5 hash of a string defining uniquely the position of the element.
* "tokenValue" => The value that the token substitutes in the text. Basically, if this value is inserted instead of the token the content should match what was inputted originally.
* "type" => file / db / string = the type of substitution. "file" means it is a relative file [automatically mapped], "db" means a database record reference [automatically mapped], "string" means it is manually modified string content (eg. an email address)
* "relFileName" => (for "file" type): Relative filename. May not necessarily exist. This could be noticed in the error key.
* "recordRef" => (for "db" type) : Reference to DB record on the form [table]:[uid]. May not necessarily exist.
* "title" => Title of element (for backend information)
* "description" => Description of element (for backend information)
* )
*/
/**
* Class for processing of the default soft reference types for CMS:
*
* - 'substitute' : A full field value targeted for manual substitution (for import /export features)
* - 'notify' : Just report if a value is found, nothing more.
* - 'images' : HTML <img> tags for RTE images
* - 'typolink' : references to page id or file, possibly with anchor/target, possibly commaseparated list.
* - 'typolink_tag' : As typolink, but searching for <link> tag to encapsulate it.
* - 'email' : Email highlight
* - 'url' : URL highlights (with a scheme)
*/
class SoftReferenceIndex
{
/**
* @var string
*/
public $tokenID_basePrefix = '';

/**
* Main function through which all processing happens
*
* @param string $table Database table name
* @param string $field Field name for which processing occurs
* @param int $uid UID of the record
* @param string $content The content/value of the field
* @param string $spKey The softlink parser key. This is only interesting if more than one parser is grouped in the same class. That is the case with this parser.
* @param array $spParams Parameters of the softlink parser. Basically this is the content inside optional []-brackets after the softref keys. Parameters are exploded by ";
* @param string $structurePath If running from inside a FlexForm structure, this is the path of the tag.
* @return array|bool Result array on positive matches, see description above. Otherwise FALSE
*/
public function findRef($table, $field, $uid, $content, $spKey, $spParams, $structurePath = '')
{
$retVal = false;
$this->tokenID_basePrefix = $table . ':' . $uid . ':' . $field . ':' . $structurePath . ':' . $spKey;
switch ($spKey) {
case 'notify':
// Simple notification
$resultArray = [
'elements' => [
[
'matchString' => $content
]
]
];
$retVal = $resultArray;
break;
case 'substitute':
$tokenID = $this->makeTokenID();
$resultArray = [
'content' => '{softref:' . $tokenID . '}',
'elements' => [
[
'matchString' => $content,
'subst' => [
'type' => 'string',
'tokenID' => $tokenID,
'tokenValue' => $content
]
]
]
];
$retVal = $resultArray;
break;
case 'images':
$retVal = $this->findRef_images($content, $spParams);
break;
case 'typolink':
$retVal = $this->findRef_typolink($content, $spParams);
break;
case 'typolink_tag':
$retVal = $this->findRef_typolink_tag($content, $spParams);
break;
case 'ext_fileref':
$retVal = $this->findRef_extension_fileref($content, $spParams);
break;
case 'email':
$retVal = $this->findRef_email($content, $spParams);
break;
case 'url':
$retVal = $this->findRef_url($content, $spParams);
break;
default:
$retVal = false;
}
return $retVal;
}

/**
* Finding image tags in the content.
* All images that are not from external URLs will be returned with an info text
* Will only return files in uploads/ folders which are prefixed with "RTEmagic[C|P]_" for substitution
* Any "clear.gif" images are ignored.
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns
* @return array Result array on positive matches, see description above. Otherwise FALSE
*/
public function findRef_images($content, $spParams)
{
// Start HTML parser and split content by image tag:
$htmlParser = GeneralUtility::makeInstance(\TYPO3\CMS\Core\Html\HtmlParser::class);
$splitContent = $htmlParser->splitTags('img', $content);
$elements = [];
// Traverse splitted parts:
foreach ($splitContent as $k => $v) {
if ($k % 2) {
// Get file reference:
$attribs = $htmlParser->get_tag_attributes($v);
$srcRef = htmlspecialchars_decode($attribs[0]['src']);
$pI = pathinfo($srcRef);
// If it looks like a local image, continue. Otherwise ignore it.
$absPath = GeneralUtility::getFileAbsFileName(PATH_site . $srcRef);
if (!$pI['scheme'] && !$pI['query'] && $absPath && $srcRef !== 'clear.gif') {
// Initialize the element entry with info text here:
$tokenID = $this->makeTokenID($k);
$elements[$k] = [];
$elements[$k]['matchString'] = $v;
// If the image seems to be an RTE image, then proceed to set up substitution token:
if (GeneralUtility::isFirstPartOfStr($srcRef, 'uploads/') && preg_match('/^RTEmagicC_/', basename($srcRef))) {
// Token and substitute value:
// Make sure the value we work on is found and will get substituted in the content (Very important that the src-value is not DeHSC'ed)
if (strstr($splitContent[$k], $attribs[0]['src'])) {
// Substitute value with token (this is not be an exact method if the value is in there twice, but we assume it will not)
$splitContent[$k] = str_replace($attribs[0]['src'], '{softref:' . $tokenID . '}', $splitContent[$k]);
$elements[$k]['subst'] = [
'type' => 'file',
'relFileName' => $srcRef,
'tokenID' => $tokenID,
'tokenValue' => $attribs[0]['src']
];
// Finally, notice if the file does not exist.
if (!@is_file($absPath)) {
$elements[$k]['error'] = 'File does not exist!';
}
} else {
$elements[$k]['error'] = 'Could not substitute image source with token!';
}
}
}
}
}
// Return result:
if (!empty($elements)) {
$resultArray = [
'content' => implode('', $splitContent),
'elements' => $elements
];
return $resultArray;
}
}

/**
* TypoLink value processing.
* Will process input value as a TypoLink value.
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns. value "linkList" will split the string by comma before processing.
* @return array Result array on positive matches, see description above. Otherwise FALSE
* @see \TYPO3\CMS\Frontend\ContentObject::typolink(), getTypoLinkParts()
*/
public function findRef_typolink($content, $spParams)
{
// First, split the input string by a comma if the "linkList" parameter is set.
// An example: the link field for images in content elements of type "textpic" or "image". This field CAN be configured to define a link per image, separated by comma.
if (is_array($spParams) && in_array('linkList', $spParams)) {
// Preserving whitespace on purpose.
$linkElement = explode(',', $content);
} else {
// If only one element, just set in this array to make it easy below.
$linkElement = [$content];
}
// Traverse the links now:
$elements = [];
foreach ($linkElement as $k => $typolinkValue) {
$tLP = $this->getTypoLinkParts($typolinkValue);
$linkElement[$k] = $this->setTypoLinkPartsElement($tLP, $elements, $typolinkValue, $k);
}
// Return output:
if (!empty($elements)) {
$resultArray = [
'content' => implode(',', $linkElement),
'elements' => $elements
];
return $resultArray;
}
}

/**
* TypoLink tag processing.
* Will search for <link ...> and <a> tags in the content string and process any found.
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns
* @return array Result array on positive matches, see description above. Otherwise FALSE
* @see \TYPO3\CMS\Frontend\ContentObject::typolink(), getTypoLinkParts()
*/
public function findRef_typolink_tag($content, $spParams)
{
// Parse string for special TYPO3 <link> tag:
$htmlParser = GeneralUtility::makeInstance(\TYPO3\CMS\Core\Html\HtmlParser::class);
$linkService = GeneralUtility::makeInstance(LinkService::class);
$linkTags = $htmlParser->splitTags('a', $content);
// Traverse result:
$elements = [];
foreach ($linkTags as $key => $foundValue) {
if ($key % 2) {
if (preg_match('/href="([^"]+)"/', $foundValue, $matches)) {
try {
$linkDetails = $linkService->resolve($matches[1]);
if ($linkDetails['type'] === LinkService::TYPE_FILE && preg_match('/file\?uid=(\d+)/', $matches[1], $fileIdMatch)) {
$token = $this->makeTokenID($key);
$linkTags[$key] = str_replace($matches[1], '{softref:' . $token . '}', $linkTags[$key]);
$elements[$key]['subst'] = [
'type' => 'db',
'recordRef' => 'sys_file:' . $fileIdMatch[1],
'tokenID' => $token,
'tokenValue' => 'file:' . ($linkDetails['file'] instanceof File ? $linkDetails['file']->getUid() : $fileIdMatch[1])
];
} elseif ($linkDetails['type'] === LinkService::TYPE_PAGE && preg_match('/page\?uid=(\d+)#?(\d+)?/', $matches[1], $pageAndAnchorMatches)) {
$token = $this->makeTokenID($key);
$linkTags[$key] = str_replace($matches[1], '{softref:' . $token . '}', $linkTags[$key]);
$elements[$key]['subst'] = [
'type' => 'db',
'recordRef' => 'pages:' . $linkDetails['pageuid'] . (isset($pageAndAnchorMatches[2]) ? '#c' . $pageAndAnchorMatches[2] : ''),
'tokenID' => $token,
'tokenValue' => $linkDetails['pageuid'] . (isset($pageAndAnchorMatches[2]) ? '#c' . $pageAndAnchorMatches[2] : '')
];
} elseif ($linkDetails['type'] === LinkService::TYPE_URL) {
$token = $this->makeTokenID($key);
$linkTags[$key] = str_replace($matches[1], '{softref:' . $token . '}', $linkTags[$key]);
$elements[$key]['subst'] = [
'type' => 'external',
'tokenID' => $token,
'tokenValue' => $linkDetails['url']
];
}
} catch (\Exception $e) {
// skip invalid links
}
} else {
// keep the legacy code for now
$typolinkValue = preg_replace('/<LINK[[:space:]]+/i', '', substr($foundValue, 0, -1));
$tLP = $this->getTypoLinkParts($typolinkValue);
$linkTags[$k] = '<LINK ' . $this->setTypoLinkPartsElement($tLP, $elements, $typolinkValue, $k) . '>';
}
}
}
// Return output:
if (!empty($elements)) {
$resultArray = [
'content' => implode('', $linkTags),
'elements' => $elements
];
return $resultArray;
}
}

/**
* Finding email addresses in content and making them substitutable.
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns
* @return array Result array on positive matches, see description above. Otherwise FALSE
*/
public function findRef_email($content, $spParams)
{
// Email:
$parts = preg_split('/([^[:alnum:]]+)([A-Za-z0-9\\._-]+[@][A-Za-z0-9\\._-]+[\\.].[A-Za-z0-9]+)/', ' ' . $content . ' ', 10000, PREG_SPLIT_DELIM_CAPTURE);
foreach ($parts as $idx => $value) {
if ($idx % 3 == 2) {
$tokenID = $this->makeTokenID($idx);
$elements[$idx] = [];
$elements[$idx]['matchString'] = $value;
if (is_array($spParams) && in_array('subst', $spParams)) {
$parts[$idx] = '{softref:' . $tokenID . '}';
$elements[$idx]['subst'] = [
'type' => 'string',
'tokenID' => $tokenID,
'tokenValue' => $value
];
}
}
}
// Return output:
if (!empty($elements)) {
$resultArray = [
'content' => substr(implode('', $parts), 1, -1),
'elements' => $elements
];
return $resultArray;
}
}

/**
* Finding URLs in content
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns
* @return array Result array on positive matches, see description above. Otherwise FALSE
*/
public function findRef_url($content, $spParams)
{
// URLs
$parts = preg_split('/([^[:alnum:]"\']+)((https?|ftp):\\/\\/[^[:space:]"\'<>]*)([[:space:]])/', ' ' . $content . ' ', 10000, PREG_SPLIT_DELIM_CAPTURE);
foreach ($parts as $idx => $value) {
if ($idx % 5 == 3) {
unset($parts[$idx]);
}
if ($idx % 5 == 2) {
$tokenID = $this->makeTokenID($idx);
$elements[$idx] = [];
$elements[$idx]['matchString'] = $value;
if (is_array($spParams) && in_array('subst', $spParams)) {
$parts[$idx] = '{softref:' . $tokenID . '}';
$elements[$idx]['subst'] = [
'type' => 'string',
'tokenID' => $tokenID,
'tokenValue' => $value
];
}
}
}
// Return output:
if (!empty($elements)) {
$resultArray = [
'content' => substr(implode('', $parts), 1, -1),
'elements' => $elements
];
return $resultArray;
}
}

/**
* Finding reference to files from extensions in content, but only to notify about their existence. No substitution
*
* @param string $content The input content to analyse
* @param array $spParams Parameters set for the softref parser key in TCA/columns
* @return array Result array on positive matches, see description above. Otherwise FALSE
*/
public function findRef_extension_fileref($content, $spParams)
{
// Files starting with EXT:
$parts = preg_split('/([^[:alnum:]"\']+)(EXT:[[:alnum:]_]+\\/[^[:space:]"\',]*)/', ' ' . $content . ' ', 10000, PREG_SPLIT_DELIM_CAPTURE);
foreach ($parts as $idx => $value) {
if ($idx % 3 == 2) {
$this->makeTokenID($idx);
$elements[$idx] = [];
$elements[$idx]['matchString'] = $value;
}
}
// Return output:
if (!empty($elements)) {
$resultArray = [
'content' => substr(implode('', $parts), 1, -1),
'elements' => $elements
];
return $resultArray;
}
}

/*************************
*
* Helper functions
*
*************************/

/**
* Analyse content as a TypoLink value and return an array with properties.
* TypoLinks format is: <link [typolink] [browser target] [css class] [title attribute] [additionalParams]>.
* See TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::typolink()
* The syntax of the [typolink] part is: [typolink] = [page id or alias][,[type value]][#[anchor, if integer = tt_content uid]]
* The extraction is based on how \TYPO3\CMS\Frontend\ContentObject::typolink() behaves.
*
* @param string $typolinkValue TypoLink value.
* @return array Array with the properties of the input link specified. The key "LINK_TYPE" will reveal the type. If that is blank it could not be determined.
* @see \TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer::typolink(), setTypoLinkPartsElement()
*/
public function getTypoLinkParts($typolinkValue)
{
$finalTagParts = GeneralUtility::makeInstance(TypoLinkCodecService::class)->decode($typolinkValue);

$link_param = $finalTagParts['url'];
// we define various keys below, "url" might be misleading
unset($finalTagParts['url']);

if (stripos(rawurldecode(trim($link_param)), 'phar://') === 0) {
throw new \RuntimeException(
'phar scheme not allowed as soft reference target',
1530030672
);
}

// Parse URL:
$pU = @parse_url($link_param);

// If it's a mail address:
if (strstr($link_param, '@') && !$pU['scheme']) {
$link_param = preg_replace('/^mailto:/i', '', $link_param);
$finalTagParts['LINK_TYPE'] = 'mailto';
$finalTagParts['url'] = trim($link_param);
return $finalTagParts;
}

if ($pU['scheme'] === 't3' && $pU['host'] === LinkService::TYPE_RECORD) {
$finalTagParts['LINK_TYPE'] = LinkService::TYPE_RECORD;
$finalTagParts['url'] = $link_param;
}

list($linkHandlerKeyword, $linkHandlerValue) = explode(':', trim($link_param), 2);

// Dispatch available signal slots.
$linkHandlerFound = false;
list($linkHandlerFound, $finalTagParts) = $this->emitGetTypoLinkParts($linkHandlerFound, $finalTagParts, $linkHandlerKeyword, $linkHandlerValue);
if ($linkHandlerFound) {
return $finalTagParts;
}

// Ralph Brugger, 2019-01-31
if ($linkHandlerKeyword === 't3') {
// linking to any t3:// syntax
if (stripos($link_param, 't3://') === 0) {
// lets parse the urn
$linkParsed = parse_url($link_param);
if (isset($linkParsed['host']) && isset($linkParsed['scheme']) && isset($linkParsed['query'])){
$identifier = $linkParsed['host'];
$scheme = $linkParsed['scheme'];
$query = $linkParsed['query'];
$finalTagParts['LINK_TYPE'] = $identifier;
if($query && $identifier === 'file' ){
$queryparts = explode('=', $query);
if($queryparts){
if(is_array($queryparts)){
$queryKey = $queryparts[0];
$queryValue = (integer) $queryparts[1];
if (is_int($queryValue)){
$finalTagParts['identifier'] = "$identifier:$queryValue";
unset($linkParsed);
unset($queryparts);
return $finalTagParts;
}
}
}
}
}
}
}
// Ralph Brugger, 2019-01-31

// Check for FAL link-handler keyword
if ($linkHandlerKeyword === 'file') {
$finalTagParts['LINK_TYPE'] = 'file';
$finalTagParts['identifier'] = trim($link_param);
return $finalTagParts;
}

$isLocalFile = 0;
$fileChar = (int)strpos($link_param, '/');
$urlChar = (int)strpos($link_param, '.');

// Detects if a file is found in site-root and if so it will be treated like a normal file.
list($rootFileDat) = explode('?', rawurldecode($link_param));
$containsSlash = strstr($rootFileDat, '/');
$rFD_fI = pathinfo($rootFileDat);
$fileExtension = strtolower($rFD_fI['extension']);
if (!$containsSlash && trim($rootFileDat) && (@is_file(PATH_site . $rootFileDat) || $fileExtension === 'php' || $fileExtension === 'html' || $fileExtension === 'htm')) {
$isLocalFile = 1;
} elseif ($containsSlash) {
// Adding this so realurl directories are linked right (non-existing).
$isLocalFile = 2;
}
if ($pU['scheme'] || ($isLocalFile != 1 && $urlChar && (!$containsSlash || $urlChar < $fileChar))) { // url (external): If doubleSlash or if a '.' comes before a '/'.
$finalTagParts['LINK_TYPE'] = 'url';
$finalTagParts['url'] = $link_param;
} elseif ($containsSlash || $isLocalFile) { // file (internal)
$splitLinkParam = explode('?', $link_param);
if (file_exists(rawurldecode($splitLinkParam[0])) || $isLocalFile) {
$finalTagParts['LINK_TYPE'] = 'file';
$finalTagParts['filepath'] = rawurldecode($splitLinkParam[0]);
$finalTagParts['query'] = $splitLinkParam[1];
}
} else {
// integer or alias (alias is without slashes or periods or commas, that is
// 'nospace,alphanum_x,lower,unique' according to definition in $GLOBALS['TCA']!)
$finalTagParts['LINK_TYPE'] = 'page';

$link_params_parts = explode('#', $link_param);
// Link-data del
$link_param = trim($link_params_parts[0]);

if ((string)$link_params_parts[1] !== '') {
$finalTagParts['anchor'] = trim($link_params_parts[1]);
}

// Splitting the parameter by ',' and if the array counts more than 1 element it's a id/type/? pair
$pairParts = GeneralUtility::trimExplode(',', $link_param);
if (count($pairParts) > 1) {
$link_param = $pairParts[0];
$finalTagParts['type'] = $pairParts[1]; // Overruling 'type'
}

// Checking if the id-parameter is an alias.
if ((string)$link_param !== '') {
if (!\TYPO3\CMS\Core\Utility\MathUtility::canBeInterpretedAsInteger($link_param)) {
$finalTagParts['alias'] = $link_param;
$link_param = $this->getPageIdFromAlias($link_param);
}

$finalTagParts['page_id'] = (int)$link_param;
}
}

return $finalTagParts;
}

/**
* Recompile a TypoLink value from the array of properties made with getTypoLinkParts() into an elements array
*
* @param array $tLP TypoLink properties
* @param array $elements Array of elements to be modified with substitution / information entries.
* @param string $content The content to process.
* @param int $idx Index value of the found element - user to make unique but stable tokenID
* @return string The input content, possibly containing tokens now according to the added substitution entries in $elements
* @see getTypoLinkParts()
*/
public function setTypoLinkPartsElement($tLP, &$elements, $content, $idx)
{
// Initialize, set basic values. In any case a link will be shown
$tokenID = $this->makeTokenID('setTypoLinkPartsElement:' . $idx);
$elements[$tokenID . ':' . $idx] = [];
$elements[$tokenID . ':' . $idx]['matchString'] = $content;
// Based on link type, maybe do more:
switch ((string)$tLP['LINK_TYPE']) {
case 'mailto':

case 'url':
// Mail addresses and URLs can be substituted manually:
$elements[$tokenID . ':' . $idx]['subst'] = [
'type' => 'string',
'tokenID' => $tokenID,
'tokenValue' => $tLP['url']
];
// Output content will be the token instead:
$content = '{softref:' . $tokenID . '}';
break;
case 'file':
// Process files referenced by their FAL uid
if ($tLP['identifier']) {
list($linkHandlerKeyword, $linkHandlerValue) = explode(':', trim($tLP['identifier']), 2);
if (\TYPO3\CMS\Core\Utility\MathUtility::canBeInterpretedAsInteger($linkHandlerValue)) {
// Token and substitute value
$elements[$tokenID . ':' . $idx]['subst'] = [
'type' => 'db',
'recordRef' => 'sys_file:' . $linkHandlerValue,
'tokenID' => $tokenID,
'tokenValue' => $tLP['identifier'],
];
// Output content will be the token instead:
$content = '{softref:' . $tokenID . '}';
} else {
// This is a link to a folder...
return $content;
}
} else {
return $content;
}
break;
case 'page':
// Rebuild page reference typolink part:
$content = '';
// Set page id:
if ($tLP['page_id']) {
$content .= '{softref:' . $tokenID . '}';
$elements[$tokenID . ':' . $idx]['subst'] = [
'type' => 'db',
'recordRef' => 'pages:' . $tLP['page_id'],
'tokenID' => $tokenID,
'tokenValue' => $tLP['alias'] ? $tLP['alias'] : $tLP['page_id']
];
}
// Add type if applicable
if ((string)$tLP['type'] !== '') {
$content .= ',' . $tLP['type'];
}
// Add anchor if applicable
if ((string)$tLP['anchor'] !== '') {
// Anchor is assumed to point to a content elements:
if (\TYPO3\CMS\Core\Utility\MathUtility::canBeInterpretedAsInteger($tLP['anchor'])) {
// Initialize a new entry because we have a new relation:
$newTokenID = $this->makeTokenID('setTypoLinkPartsElement:anchor:' . $idx);
$elements[$newTokenID . ':' . $idx] = [];
$elements[$newTokenID . ':' . $idx]['matchString'] = 'Anchor Content Element: ' . $tLP['anchor'];
$content .= '#{softref:' . $newTokenID . '}';
$elements[$newTokenID . ':' . $idx]['subst'] = [
'type' => 'db',
'recordRef' => 'tt_content:' . $tLP['anchor'],
'tokenID' => $newTokenID,
'tokenValue' => $tLP['anchor']
];
} else {
// Anchor is a hardcoded string
$content .= '#' . $tLP['type'];
}
}
break;
case LinkService::TYPE_RECORD:
$elements[$tokenID . ':' . $idx]['subst'] = [
'type' => 'db',
'recordRef' => $tLP['table'] . ':' . $tLP['uid'],
'tokenID' => $tokenID,
'tokenValue' => $content,
];

$content = '{softref:' . $tokenID . '}';
break;
default:
$linkHandlerFound = false;
list($linkHandlerFound, $tLP, $content, $newElements) = $this->emitSetTypoLinkPartsElement($linkHandlerFound, $tLP, $content, $elements, $idx, $tokenID);
// We need to merge the array, otherwise we would loose the reference.
\TYPO3\CMS\Core\Utility\ArrayUtility::mergeRecursiveWithOverrule($elements, $newElements);

if (!$linkHandlerFound) {
$elements[$tokenID . ':' . $idx]['error'] = 'Couldn\'t decide typolink mode.';
return $content;
}
}
// Finally, for all entries that was rebuild with tokens, add target, class, title and additionalParams in the end:
$tLP['url'] = $content;
$content = GeneralUtility::makeInstance(TypoLinkCodecService::class)->encode($tLP);

// Return rebuilt typolink value:
return $content;
}

/**
* Look up and return page uid for alias
*
* @param string $link_param Page alias string value
* @return int Page uid corresponding to alias value.
*/
public function getPageIdFromAlias($link_param)
{
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('pages');
$queryBuilder->getRestrictions()
->removeAll()
->add(GeneralUtility::makeInstance(DeletedRestriction::class))
->add(GeneralUtility::makeInstance(BackendWorkspaceRestriction::class));

$pageUid = $queryBuilder->select('uid')
->from('pages')
->where(
$queryBuilder->expr()->eq('alias', $queryBuilder->createNamedParameter($link_param, \PDO::PARAM_STR))
)
->setMaxResults(1)
->execute()
->fetchColumn(0);

return (int)$pageUid;
}

/**
* Make Token ID for input index.
*
* @param string $index Suffix value.
* @return string Token ID
*/
public function makeTokenID($index = '')
{
return md5($this->tokenID_basePrefix . ':' . $index);
}

/**
* @return \TYPO3\CMS\Extbase\SignalSlot\Dispatcher
*/
protected function getSignalSlotDispatcher()
{
return GeneralUtility::makeInstance(\TYPO3\CMS\Extbase\SignalSlot\Dispatcher::class);
}

/**
* @param bool $linkHandlerFound
* @param array $finalTagParts
* @param string $linkHandlerKeyword
* @param string $linkHandlerValue
* @return array
*/
protected function emitGetTypoLinkParts($linkHandlerFound, $finalTagParts, $linkHandlerKeyword, $linkHandlerValue)
{
return $this->getSignalSlotDispatcher()->dispatch(get_class($this), 'getTypoLinkParts', [$linkHandlerFound, $finalTagParts, $linkHandlerKeyword, $linkHandlerValue]);
}

/**
* @param bool $linkHandlerFound
* @param array $tLP
* @param string $content
* @param array $elements
* @param int $idx
* @param string $tokenID
* @return array
*/
protected function emitSetTypoLinkPartsElement($linkHandlerFound, $tLP, $content, $elements, $idx, $tokenID)
{
return $this->getSignalSlotDispatcher()->dispatch(get_class($this), 'setTypoLinkPartsElement', [$linkHandlerFound, $tLP, $content, $elements, $idx, $tokenID, $this]);
}
}
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