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<?php |
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namespace SilverStripe\DocumentConverter; |
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use DOMAttr; |
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use DOMDocument; |
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use DOMElement; |
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use DOMXPath; |
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use Page; |
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use SilverStripe\AssetAdmin\Forms\UploadField; |
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use SilverStripe\Assets\File; |
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use SilverStripe\Assets\FileNameFilter; |
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use SilverStripe\Assets\Folder; |
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use SilverStripe\Assets\Image; |
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use SilverStripe\Assets\Upload; |
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use SilverStripe\Core\Config\Config; |
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use SilverStripe\Core\Convert; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\Control\Director; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Control\HTTPResponse; |
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use SilverStripe\Forms\HTMLEditor\HTMLEditorConfig; |
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use SilverStripe\Forms\HTMLEditor\HTMLEditorSanitiser; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\Versioned\Versioned; |
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use SilverStripe\View\Parsers\HTMLValue; |
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use Tidy; |
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/** |
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* DocumentImporterField is built on top of UploadField to access a document |
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* conversion capabilities. The original field is stripped down to allow only |
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* uploads from the user's computer, and triggers the conversion when the upload |
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* is completed. |
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* |
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* The file upload has additional parameters injected. They are set by the user |
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* through the fields provided on the DocumentImportField: |
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* |
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* * SplitHeader: if enabled, scans the document looking for H1 or H2 headers and |
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* puts each subsection into separate page. The first part of the document until |
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* the first header occurence is added to the current page. |
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* * KeepSource: prevents the removal of the uploaded document, and stores its ID |
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* in the has_one relationship on the parent page (see the |
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* DocumentImportField::__construct for how to configure the name of this has_one) |
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* * ChosenFolderID: directory to be used for storing the original document and the |
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* image files that come along with the document. |
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* * PublishPages: whether the current and the chapter pages should be published. |
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* * IncludeTOC: builds a table of contents and puts it into the parent page. This |
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* could potentially replace the document content from before the first heading. |
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* Also, if the KeepSource is enabled, it will inject the document link into this |
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* page. |
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* |
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* Caveat: there is some coupling between the above parameters. |
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*/ |
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class ImportField extends UploadField |
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{ |
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private static $allowed_actions = ['upload']; |
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private static $importer_class = ServiceConnector::class; |
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/** |
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* Process the document immediately upon upload. |
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*/ |
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public function upload(HTTPRequest $request) |
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{ |
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if ($this->isDisabled() || $this->isReadonly()) { |
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return $this->httpError(403); |
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} |
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// Protect against CSRF on destructive action |
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$token = $this->getForm()->getSecurityToken(); |
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if (!$token->checkRequest($request)) { |
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return $this->httpError(400); |
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} |
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$tmpfile = $request->postVar('Upload'); |
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// Check if the file has been uploaded into the temporary storage. |
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if (!$tmpfile) { |
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$return = [ |
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'error' => _t( |
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'SilverStripe\\AssetAdmin\\Forms\\UploadField.FIELDNOTSET', |
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'File information not found' |
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) |
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]; |
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} else { |
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$return = [ |
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'name' => $tmpfile['name'], |
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'size' => $tmpfile['size'], |
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'type' => $tmpfile['type'], |
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'error' => $tmpfile['error'] |
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]; |
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} |
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if (!$return['error']) { |
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// Get options for this import. |
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$splitHeader = (int)$request->postVar('SplitHeader'); |
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$keepSource = (bool)$request->postVar('KeepSource'); |
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$chosenFolderID = (int)$request->postVar('ChosenFolderID'); |
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$publishPages = (bool)$request->postVar('PublishPages'); |
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$includeTOC = (bool)$request->postVar('IncludeTOC'); |
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// Process the document and write the page. |
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$preservedDocument = null; |
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if ($keepSource) { |
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$preservedDocument = $this->preserveSourceDocument($tmpfile, $chosenFolderID); |
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} |
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$importResult = $this->importFromPOST($tmpfile, $splitHeader, $publishPages, $chosenFolderID); |
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if (is_array($importResult) && isset($importResult['error'])) { |
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$return['error'] = $importResult['error']; |
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} elseif ($includeTOC) { |
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$this->writeTOC($publishPages, $keepSource ? $preservedDocument : null); |
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} |
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} |
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$response = HTTPResponse::create(Convert::raw2json([$return])); |
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$response->addHeader('Content-Type', 'application/json'); |
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return $response; |
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} |
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/** |
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* Preserves the source file by copying it to a specified folder. |
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* |
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* @param $tmpfile Temporary file data structure. |
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* @param int $chosenFolderID Target folder. |
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* @return File Stored file. |
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*/ |
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protected function preserveSourceDocument($tmpfile, $chosenFolderID = null) |
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{ |
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$upload = Upload::create(); |
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$file = File::create(); |
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$upload->loadIntoFile($tmpfile, $file, $chosenFolderID); |
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$page = $this->form->getRecord(); |
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$page->ImportedFromFileID = $file->ID; |
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$page->write(); |
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return $file; |
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} |
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/** |
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* Builds and writes the table of contents for the document. |
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* |
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* @param bool $publishPage Should the parent page be published. |
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* @param File $preservedDocument Set if the link to the original document should be added. |
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*/ |
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protected function writeTOC($publishPages = false, $preservedDocument = null) |
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{ |
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$page = $this->form->getRecord(); |
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$content = '<ul>'; |
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if ($page) { |
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if ($page->Children()->Count() > 0) { |
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foreach ($page->Children() as $child) { |
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$content .= '<li><a href="' . $child->Link() . '">' . $child->Title . '</a></li>'; |
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} |
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$page->Content = $content . '</ul>'; |
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} else { |
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$doc = new DOMDocument(); |
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$doc->loadHTML($page->Content); |
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$body = $doc->getElementsByTagName('body')->item(0); |
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$node = $body->firstChild; |
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$h1 = $h2 = 1; |
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while ($node) { |
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if ($node instanceof DOMElement && $node->tagName == 'h1') { |
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$content .= '<li><a href="#h1.' . $h1 . '">' . |
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trim(preg_replace('/\n|\r/', '', Convert::html2raw($node->textContent))) . |
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'</a></li>'; |
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$node->setAttributeNode(new DOMAttr("id", "h1.".$h1)); |
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$h1++; |
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} elseif ($node instanceof DOMElement && $node->tagName == 'h2') { |
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$content .= '<li class="menu-h2"><a href="#h2.' . $h2 . '">' . |
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trim(preg_replace('/\n|\r/', '', Convert::html2raw($node->textContent))) . |
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'</a></li>'; |
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$node->setAttributeNode(new DOMAttr("id", "h2.".$h2)); |
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$h2++; |
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} |
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$node = $node->nextSibling; |
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} |
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$page->Content = $content . '</ul>' . $doc->saveHTML(); |
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} |
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// Add in the link to the original document, if provided. |
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if ($preservedDocument) { |
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$page->Content = '<a href="' . |
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$preservedDocument->Link() . |
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'" title="download original document">download original document (' . |
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$preservedDocument->getSize() . |
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')</a>' . |
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$page->Content; |
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} |
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// Store the result |
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$page->write(); |
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if ($publishPages) { |
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$page->publishRecursive(); |
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} |
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} |
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} |
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protected function getBodyText($doc, $node) |
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{ |
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// Build a new doc |
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$htmldoc = new DOMDocument(); |
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// Create the html element |
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$html = $htmldoc->createElement('html'); |
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$htmldoc->appendChild($html); |
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// Append the body node |
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$html->appendChild($htmldoc->importNode($node, true)); |
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// Get the text as html, remove the entry and exit root tags and return |
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$text = $htmldoc->saveHTML(); |
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$text = preg_replace('/^.*<body>/', '', $text); |
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$text = preg_replace('/<\/body>.*$/', '', $text); |
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return $text; |
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} |
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/** |
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* Used only when writing the document that has been split by headers. |
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* Can write both to the chapter pages as well as the master page. |
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* |
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* @param string $subtitle Title of the chapter - if missing, it will write to the master page. |
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* @param $subdoc |
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* @param $subnode |
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* @param int $sort Order of the chapter page. |
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* @param $publishPages Whether to publish the resulting child/master pages. |
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*/ |
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protected function writeContent($subtitle, $subdoc, $subnode, $sort = null, $publishPages = false) |
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{ |
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$record = $this->form->getRecord(); |
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if ($subtitle) { |
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// Write the chapter page to a subpage. |
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$page = DataObject::get_one( |
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'Page', |
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sprintf('"Title" = \'%s\' AND "ParentID" = %d', $subtitle, $record->ID) |
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); |
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if (!$page) { |
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$page = Page::create(); |
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$page->ParentID = $record->ID; |
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$page->Title = $subtitle; |
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} |
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unset($this->unusedChildren[$page->ID]); |
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file_put_contents(ASSETS_PATH . '/index-' . $sort . '.html', $this->getBodyText($subdoc, $subnode)); |
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if ($sort) { |
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$page->Sort = $sort; |
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} |
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$page->Content = $this->getBodyText($subdoc, $subnode); |
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$page->write(); |
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if ($publishPages) { |
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$page->publishRecursive(); |
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} |
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} else { |
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// Write to the master page. |
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$record->Content = $this->getBodyText($subdoc, $subnode); |
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$record->write(); |
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if ($publishPages) { |
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$record->publishRecursive(); |
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} |
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} |
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} |
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/** |
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* Imports a document at a certain path onto the current page and writes it. |
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* CAUTION: Overwrites any existing content on the page! |
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* |
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* @param array $tmpFile Array as received from PHP's POST upload. |
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* @param bool $splitHeader Heading level to split by. |
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* @param bool $publishPages Whether the underlying pages should be published after import. |
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* @param int $chosenFolderID ID of the working folder - here the converted file and images will be stored. |
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*/ |
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public function importFromPOST($tmpFile, $splitHeader = false, $publishPages = false, $chosenFolderID = null) |
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{ |
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$fileDescriptor = [ |
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'name' => $tmpFile['name'], |
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'path' => $tmpFile['tmp_name'], |
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'mimeType' => $tmpFile['type'] |
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]; |
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$sourcePage = $this->form->getRecord(); |
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$importerClass = $this->config()->get('importer_class'); |
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$importer = Injector::inst()->create($importerClass, $fileDescriptor, $chosenFolderID); |
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$content = $importer->import(); |
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if (is_array($content) && isset($content['error'])) { |
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return $content; |
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} |
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// Clean up with tidy (requires tidy module) |
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$tidy = new Tidy(); |
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$tidy->parseString($content, ['output-xhtml' => true], 'utf8'); |
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$tidy->cleanRepair(); |
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$fragment = []; |
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foreach ($tidy->body()->child as $child) { |
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$fragment[] = $child->value; |
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} |
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$htmlValue = Injector::inst()->create(HTMLValue::class, implode("\n", $fragment)); |
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// Sanitise |
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$santiser = Injector::inst()->create(HTMLEditorSanitiser::class, HTMLEditorConfig::get_active()); |
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$santiser->sanitise($htmlValue); |
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// Load in the HTML |
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$doc = $htmlValue->getDocument(); |
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$xpath = new DOMXPath($doc); |
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// make sure any images are added as Image records with a relative link to assets |
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$chosenFolder = ($this->chosenFolderID) ? DataObject::get_by_id(Folder::class, $this->chosenFolderID) : null; |
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$folderName = ($chosenFolder) ? '/' . $chosenFolder->Name : ''; |
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$imgs = $xpath->query('//img'); |
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for ($i = 0; $i < $imgs->length; $i++) { |
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$img = $imgs->item($i); |
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$originalPath = 'assets/' . $folderName . '/' . $img->getAttribute('src'); |
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$name = FileNameFilter::create()->filter(basename($originalPath)); |
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$image = Image::get()->filter([ |
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'Name' => $name, |
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'ParentID' => (int)$chosenFolderID |
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])->first(); |
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if (!($image && $image->exists())) { |
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$image = Image::create(); |
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$image->ParentID = (int)$chosenFolderID; |
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$image->Name = $name; |
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$image->write(); |
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} |
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// make sure it's put in place correctly so Image record knows where it is. |
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// e.g. in the case of underscores being renamed to dashes. |
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@rename(Director::getAbsFile($originalPath), Director::getAbsFile($image->getFilename())); |
|
|
|
|
339
|
|
|
|
340
|
|
|
$img->setAttribute('src', $image->getFilename()); |
341
|
|
|
} |
342
|
|
|
|
343
|
|
|
$remove_rules = [ |
344
|
|
|
// Change any headers that contain font tags (other than font face tags) into p elements |
345
|
|
|
'//h1[.//font[not(@face)]]' => 'p', |
346
|
|
|
// Remove any font tags |
347
|
|
|
'//font' |
348
|
|
|
]; |
349
|
|
|
|
350
|
|
|
foreach ($remove_rules as $rule => $parenttag) { |
351
|
|
|
if (is_numeric($rule)) { |
352
|
|
|
$rule = $parenttag; |
353
|
|
|
$parenttag = null; |
354
|
|
|
} |
355
|
|
|
|
356
|
|
|
$nodes = []; |
357
|
|
|
foreach ($xpath->query($rule) as $node) { |
358
|
|
|
$nodes[] = $node; |
359
|
|
|
} |
360
|
|
|
|
361
|
|
|
foreach ($nodes as $node) { |
362
|
|
|
$parent = $node->parentNode; |
363
|
|
|
|
364
|
|
|
if ($parenttag) { |
365
|
|
|
$parent = $doc->createElement($parenttag); |
366
|
|
|
$node->nextSibling ? |
367
|
|
|
$node->parentNode->insertBefore($parent, $node->nextSibling) : |
368
|
|
|
$node->parentNode->appendChild($parent); |
369
|
|
|
} |
370
|
|
|
|
371
|
|
|
while ($node->firstChild) { |
372
|
|
|
$parent->appendChild($node->firstChild); |
373
|
|
|
} |
374
|
|
|
$node->parentNode->removeChild($node); |
375
|
|
|
} |
376
|
|
|
} |
377
|
|
|
|
378
|
|
|
// Strip style, class, lang attributes. |
379
|
|
|
$els = $doc->getElementsByTagName('*'); |
380
|
|
|
for ($i = 0; $i < $els->length; $i++) { |
381
|
|
|
$el = $els->item($i); |
382
|
|
|
$el->removeAttribute('class'); |
383
|
|
|
$el->removeAttribute('style'); |
384
|
|
|
$el->removeAttribute('lang'); |
385
|
|
|
} |
386
|
|
|
|
387
|
|
|
$els = $doc->getElementsByTagName('*'); |
|
|
|
|
388
|
|
|
|
389
|
|
|
$headingXPath = [ |
390
|
|
|
'self::h1', |
391
|
|
|
'self::h2', |
392
|
|
|
'self::h3', |
393
|
|
|
'self::h4', |
394
|
|
|
'self::h5', |
395
|
|
|
'self::h6', |
396
|
|
|
]; |
397
|
|
|
// Remove a bunch of unwanted elements |
398
|
|
|
$clean = [ |
399
|
|
|
// Empty paragraphs |
400
|
|
|
'//p[not(descendant-or-self::text() | descendant-or-self::img)]', |
401
|
|
|
// Empty headers |
402
|
|
|
'//*[' . implode(' | ', $headingXPath) . '][not(descendant-or-self::text() | descendant-or-self::img)]', |
403
|
|
|
// Anchors |
404
|
|
|
'//a[not(@href)]', |
405
|
|
|
// BR tags |
406
|
|
|
'//br' |
407
|
|
|
]; |
408
|
|
|
|
409
|
|
|
foreach ($clean as $query) { |
410
|
|
|
// First get all the nodes. Need to build array, as they'll disappear from the |
411
|
|
|
// nodelist while we're deleteing them, causing the indexing to screw up. |
412
|
|
|
$nodes = []; |
413
|
|
|
foreach ($xpath->query($query) as $node) { |
414
|
|
|
$nodes[] = $node; |
415
|
|
|
} |
416
|
|
|
|
417
|
|
|
// Then remove them all |
418
|
|
|
foreach ($nodes as $node) { |
419
|
|
|
if ($node->parentNode) { |
420
|
|
|
$node->parentNode->removeChild($node); |
421
|
|
|
} |
422
|
|
|
} |
423
|
|
|
} |
424
|
|
|
|
425
|
|
|
// Now split the document into portions by H1 |
426
|
|
|
$body = $doc->getElementsByTagName('body')->item(0); |
427
|
|
|
|
428
|
|
|
$this->unusedChildren = []; |
|
|
|
|
429
|
|
|
foreach ($sourcePage->Children() as $child) { |
430
|
|
|
$this->unusedChildren[$child->ID] = $child; |
431
|
|
|
} |
432
|
|
|
|
433
|
|
|
$documentImporterFieldError = false; |
434
|
|
|
|
435
|
|
|
$documentImporterFieldErrorHandler = function ( |
436
|
|
|
$errno, |
|
|
|
|
437
|
|
|
$errstr, |
|
|
|
|
438
|
|
|
$errfile, |
|
|
|
|
439
|
|
|
$errline |
|
|
|
|
440
|
|
|
) use ($documentImporterFieldError) { |
|
|
|
|
441
|
|
|
$documentImporterFieldError = _t( |
|
|
|
|
442
|
|
|
'SilverStripe\\DocumentConverter\\ServiceConnector.PROCESSFAILED', |
443
|
|
|
'Could not process document, please double-check you uploaded a .doc or .docx format.', |
444
|
|
|
'Document Converter processes Word documents into HTML.' |
445
|
|
|
); |
446
|
|
|
|
447
|
|
|
// Do not cascade the error through other handlers |
448
|
|
|
return true; |
449
|
|
|
}; |
450
|
|
|
|
451
|
|
|
set_error_handler($documentImporterFieldErrorHandler); |
452
|
|
|
|
453
|
|
|
$subtitle = null; |
454
|
|
|
$subdoc = new DOMDocument(); |
455
|
|
|
$subnode = $subdoc->createElement('body'); |
456
|
|
|
$node = $body->firstChild; |
457
|
|
|
$sort = 1; |
458
|
|
|
if ($splitHeader == 1 || $splitHeader == 2) { |
459
|
|
|
while ($node && !$documentImporterFieldError) { |
460
|
|
|
if ($node instanceof DOMElement && $node->tagName == 'h' . $splitHeader) { |
461
|
|
|
if ($subnode->hasChildNodes()) { |
462
|
|
|
$this->writeContent($subtitle, $subdoc, $subnode, $sort, $publishPages); |
463
|
|
|
$sort++; |
464
|
|
|
} |
465
|
|
|
|
466
|
|
|
$subdoc = new DOMDocument(); |
467
|
|
|
$subnode = $subdoc->createElement('body'); |
468
|
|
|
$subtitle = trim(preg_replace('/\n|\r/', '', Convert::html2raw($node->textContent))); |
469
|
|
|
} else { |
470
|
|
|
$subnode->appendChild($subdoc->importNode($node, true)); |
471
|
|
|
} |
472
|
|
|
|
473
|
|
|
$node = $node->nextSibling; |
474
|
|
|
} |
475
|
|
|
} else { |
476
|
|
|
$this->writeContent($subtitle, $subdoc, $body, null, $publishPages); |
477
|
|
|
} |
478
|
|
|
|
479
|
|
|
if ($subnode->hasChildNodes() && !$documentImporterFieldError) { |
480
|
|
|
$this->writeContent($subtitle, $subdoc, $subnode, null, $publishPages); |
481
|
|
|
} |
482
|
|
|
|
483
|
|
|
restore_error_handler(); |
484
|
|
|
if ($documentImporterFieldError) { |
485
|
|
|
return ['error' => $documentImporterFieldError]; |
486
|
|
|
} |
487
|
|
|
|
488
|
|
|
foreach ($this->unusedChildren as $child) { |
489
|
|
|
$origStage = Versioned::current_stage(); |
|
|
|
|
490
|
|
|
|
491
|
|
|
Versioned::set_stage(Versioned::DRAFT); |
492
|
|
|
$draft = clone $child; |
493
|
|
|
$draft->delete(); |
494
|
|
|
|
495
|
|
|
Versioned::set_stage(Versioned::LIVE); |
496
|
|
|
$published = clone $child; |
497
|
|
|
$published->delete(); |
498
|
|
|
|
499
|
|
|
Versioned::set_stage($origStage); |
500
|
|
|
} |
501
|
|
|
|
502
|
|
|
$sourcePage->write(); |
503
|
|
|
} |
504
|
|
|
} |
505
|
|
|
|
The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"]
, you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths