示例#1
0
 /**
  * Compile PDF/image preview for any kind of file
  *
  *
  * @return  mixed  array or false
  */
 protected function _compile()
 {
     // Combine file and folder data
     $items = $this->_sortIncoming();
     // Get stored remote connections
     $remotes = $this->_getRemoteConnections();
     // Params for repo call
     $params = array('subdir' => $this->subdir, 'remoteConnections' => $remotes);
     // Incoming
     $commit = Request::getInt('commit', 0);
     $download = Request::getInt('download', 0);
     // Check that we have compile enabled
     if (!$this->params->get('latex')) {
         $this->setError(Lang::txt('PLG_PROJECTS_FILES_COMPILE_NOTALLOWED'));
         return;
     }
     // Output HTML
     $view = new \Hubzero\Plugin\View(array('folder' => 'projects', 'element' => 'files', 'name' => 'compiled'));
     // Get selected item
     if (!$items) {
         $view->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_NO_FILES_TO_COMPILE'));
         $view->loadTemplate();
         return;
     } else {
         foreach ($items as $element) {
             foreach ($element as $type => $item) {
                 // Get our metadata
                 $file = $this->repo->getMetadata($item, 'file', $params);
                 break;
             }
         }
     }
     // We need a file
     if (empty($file)) {
         $view->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_NO_FILES_TO_COMPILE'));
         $view->loadTemplate();
         return;
     }
     // Path for storing temp previews
     $imagePath = trim($this->model->config()->get('imagepath', '/site/projects'), DS);
     $outputDir = DS . $imagePath . DS . strtolower($this->model->get('alias')) . DS . 'compiled';
     // Make sure output dir exists
     if (!is_dir(PATH_APP . $outputDir)) {
         if (!Filesystem::makeDirectory(PATH_APP . $outputDir)) {
             $this->setError(Lang::txt('PLG_PROJECTS_FILES_UNABLE_TO_CREATE_UPLOAD_PATH'));
             return;
         }
     }
     // Get LaTeX helper
     $compiler = new \Components\Projects\Helpers\Compiler();
     // Tex compiler path
     $texPath = DS . trim($this->params->get('texpath'), DS);
     $view->file = $file;
     $view->oWidth = '780';
     $view->oHeight = '460';
     $view->url = Route::url($this->model->link('files'));
     $cExt = 'pdf';
     // Take out Google native extension if present
     $fileName = $file->get('name');
     if (in_array($file->get('ext'), \Components\Projects\Helpers\Google::getGoogleNativeExts())) {
         $fileName = preg_replace("/." . $file->get('ext') . "\\z/", "", $file->get('name'));
     }
     // Tex file?
     $tex = $compiler->isTexFile($fileName);
     // Build temp name
     $tempBase = $tex ? 'temp__' . \Components\Projects\Helpers\Html::takeOutExt($fileName) : $fileName;
     $tempBase = str_replace(' ', '_', $tempBase);
     // Get file contents
     if (!empty($this->_remoteService) && $file->get('converted')) {
         // Load remote resource
         $this->_connect->setUser($this->model->get('owned_by_user'));
         $resource = $this->_connect->loadRemoteResource($this->_remoteService, $this->model->get('owned_by_user'), $file->get('remoteId'));
         $cExt = $tex ? 'tex' : \Components\Projects\Helpers\Google::getGoogleImportExt($resource['mimeType']);
         $cExt = in_array($cExt, array('tex', 'jpeg')) ? $cExt : 'pdf';
         $url = \Components\Projects\Helpers\Google::getDownloadUrl($resource, $cExt);
         // Get data
         $view->data = $this->_connect->sendHttpRequest($this->_remoteService, $this->model->get('owned_by_user'), $url);
     } elseif ($file->exists()) {
         $view->data = $file->isImage() ? NULL : $file->contents();
     } else {
         $this->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_COMPILE_NO_DATA'));
     }
     // LaTeX file?
     if ($tex && !empty($view->data)) {
         // Clean up data from Windows characters - important!
         $view->data = preg_replace('/[^(\\x20-\\x7F)\\x0A]*/', '', $view->data);
         // Compile and get path to PDF
         $contentFile = $compiler->compileTex($file->get('fullPath'), $view->data, $texPath, PATH_APP . $outputDir, 1, $tempBase);
         // Read log (to show in case of error)
         $logFile = $tempBase . '.log';
         if (file_exists(PATH_APP . $outputDir . DS . $logFile)) {
             $view->log = Filesystem::read(PATH_APP . $outputDir . DS . $logFile);
         }
         if (!$contentFile) {
             $this->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_COMPILE_TEX_FAILED'));
         }
     } elseif ($file->get('converted') && !empty($view->data)) {
         $tempBase = \Components\Projects\Helpers\Google::getImportFilename($file->get('name'), $cExt);
         // Write content to temp file
         $this->_connect->fetchFile($view->data, $tempBase, PATH_APP . $outputDir);
         $contentFile = $tempBase;
     } elseif (!$this->getError()) {
         // Make sure we can handle preview of this type of file
         if ($file->get('ext') == 'pdf' || $file->isImage() || !$file->isBinary()) {
             Filesystem::copy($file->get('fullPath'), PATH_APP . $outputDir . DS . $tempBase);
             $contentFile = $tempBase;
         }
     }
     $url = $this->model->link('files');
     $url .= $this->repo->isLocal() ? '' : '&repo=' . $this->repo->get('name');
     $url .= $this->subdir ? '&subdir=' . urlencode($this->subdir) : '';
     // Parse output
     if (!empty($contentFile) && file_exists(PATH_APP . $outputDir . DS . $contentFile)) {
         // Get compiled content mimetype
         $cType = Filesystem::mimetype(PATH_APP . $outputDir . DS . $contentFile);
         // Is image?
         if (strpos($cType, 'image/') !== false) {
             // Fix up object width & height
             list($width, $height, $type, $attr) = getimagesize(PATH_APP . $outputDir . DS . $contentFile);
             $xRatio = $view->oWidth / $width;
             $yRatio = $view->oHeight / $height;
             if ($xRatio * $height < $view->oHeight) {
                 // Resize the image based on width
                 $view->oHeight = ceil($xRatio * $height);
             } else {
                 // Resize the image based on height
                 $view->oWidth = ceil($yRatio * $width);
             }
         }
         // Download compiled file?
         if ($download) {
             $pdfName = $tex ? str_replace('temp__', '', basename($contentFile)) : basename($contentFile);
             // Serve up file
             $server = new \Hubzero\Content\Server();
             $server->filename(PATH_APP . $outputDir . DS . $contentFile);
             $server->disposition('attachment');
             $server->acceptranges(false);
             $server->saveas($pdfName);
             $result = $server->serve_attachment(PATH_APP . $outputDir . DS . $contentFile, $pdfName, false);
             if (!$result) {
                 // Should only get here on error
                 App::abort(404, Lang::txt('PLG_PROJECTS_FILES_SERVER_ERROR'));
             } else {
                 exit;
             }
         }
         // Add compiled PDF to repository?
         if ($commit && $tex) {
             $pdfName = str_replace('temp__', '', basename($contentFile));
             $where = $this->subdir ? $this->subdir . DS . $pdfName : $pdfName;
             if (Filesystem::copy(PATH_APP . $outputDir . DS . $contentFile, $this->_path . DS . $where)) {
                 // Checkin into repo
                 $params = array('subdir' => $this->subdir);
                 $params['file'] = $this->repo->getMetadata($pdfName, 'file', $params);
                 $this->repo->call('checkin', $params);
                 if ($this->repo->isLocal()) {
                     $this->model->saveParam('google_sync_queue', 1);
                 }
                 \Notify::message(Lang::txt('PLG_PROJECTS_FILES_SUCCESS_COMPILED'), 'success', 'projects');
                 // Redirect to file list
                 App::redirect(Route::url($url));
                 return;
             }
         }
         // Generate preview image for browsers that cannot embed pdf
         if ($cType == 'application/pdf') {
             // GS path
             $gspath = trim($this->params->get('gspath'), DS);
             if ($gspath && file_exists(DS . $gspath . DS . 'gs')) {
                 $gspath = DS . $gspath . DS;
                 $pdfName = $tex ? str_replace('temp__', '', basename($contentFile)) : basename($contentFile);
                 $pdfPath = PATH_APP . $outputDir . DS . $contentFile;
                 $exportPath = PATH_APP . $outputDir . DS . $tempBase . '%d.jpg';
                 exec($gspath . "gs -dNOPAUSE -sDEVICE=jpeg -r300 -dFirstPage=1 -dLastPage=1 -sOutputFile={$exportPath} {$pdfPath} 2>&1", $out);
                 if (is_file(PATH_APP . $outputDir . DS . $tempBase . '1.jpg')) {
                     $hi = new \Hubzero\Image\Processor(PATH_APP . $outputDir . DS . $tempBase . '1.jpg');
                     if (count($hi->getErrors()) == 0) {
                         $hi->resize($view->oWidth, false, false, true);
                         $hi->save(PATH_APP . $outputDir . DS . $tempBase . '1.jpg');
                     } else {
                         return false;
                     }
                 }
                 if (is_file(PATH_APP . $outputDir . DS . $tempBase . '1.jpg')) {
                     $image = $tempBase . '1.jpg';
                 }
             }
         }
     } elseif (!$this->getError()) {
         $this->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_COMPILE_PREVIEW_FAILED'));
     }
     $view->file = $file;
     $view->outputDir = $outputDir;
     $view->embed = $contentFile;
     $view->cType = $cType;
     $view->subdir = $this->subdir;
     $view->option = $this->_option;
     $view->image = !empty($image) ? $image : NULL;
     $view->model = $this->model;
     $view->repo = $this->repo;
     if ($this->getError()) {
         $view->setError($this->getError());
     }
     return $view->loadTemplate();
 }
示例#2
0
// No direct access
defined('_HZEXEC_') or die;
if ($this->getError()) {
    echo '<p class="error">' . $this->getError() . '</p>';
    return;
}
$name = $this->file->get('name');
// Is this a duplicate remote?
if ($this->file->get('remote') && $this->file->get('name') != $this->file->get('remoteTitle')) {
    $append = \Components\Projects\Helpers\Html::getAppendedNumber($this->file->get('name'));
    if ($append > 0) {
        $name = \Components\Projects\Helpers\Html::fixFileName($this->file->get('remoteTitle'), ' (' . $append . ')', $this->file->get('ext'));
    }
}
// Do not display Google native extension
$native = \Components\Projects\Helpers\Google::getGoogleNativeExts();
if (in_array($this->file->get('ext'), $native)) {
    $name = preg_replace("/." . $this->file->get('ext') . "\\z/", "", $name);
}
?>
	<h4><img src="<?php 
echo $this->file->getIcon();
?>
" alt="<?php 
echo $this->file->get('ext');
?>
" /> <?php 
echo $name;
?>
</h4>
	<ul class="filedata">