/**
* 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();
}
/**
* Compiles PDF/image preview for any kind of file
*
* @return string
*/
public function compile()
{
// Combine file and folder data
$items = $this->getCollection();
// Incoming
$download = Request::getInt('download', 0);
// Check that we have compile enabled
// @FIXME: why are latex and compiled preview tied together?
// presumedly we are also 'compiling' pdfs?
if (!$this->params->get('latex')) {
$this->setError(Lang::txt('PLG_PROJECTS_FILES_COMPILE_NOTALLOWED'));
return;
}
// Output HTML
$view = new \Hubzero\Plugin\View(['folder' => 'projects', 'element' => 'files', 'name' => 'connected', 'layout' => 'compiled']);
// Make sure we have an item
if (count($items) == 0) {
$view->setError(Lang::txt('PLG_PROJECTS_FILES_ERROR_NO_FILES_TO_COMPILE'));
$view->loadTemplate();
return;
}
// We can only handle one file at a time
$file = $items->first();
// Build 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);
// Set view args and defaults
$view->file = $file;
$view->oWidth = '780';
$view->oHeight = '460';
$view->url = $this->model->link('files');
$cExt = 'pdf';
// Tex file?
$tex = $compiler->isTexFile($file->getName());
// Build temp name
$tempBase = $tex ? 'temp__' . \Components\Projects\Helpers\Html::takeOutExt($file->getName()) : $file->getName();
$tempBase = str_replace(' ', '_', $tempBase);
$view->data = $file->isImage() ? NULL : $file->read();
// LaTeX file?
if ($tex && !empty($view->data)) {
// Clean up data from Windows characters - important!
$view->data = preg_replace('/[^(\\x20-\\x7F)\\x0A]*/', '', $view->data);
// Store file locally
$tmpfile = PATH_APP . $outputDir . DS . $tempBase;
file_put_contents($tmpfile, $view->data);
// Compile and get path to PDF
$contentFile = $compiler->compileTex($tmpfile, $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'));
}
$cType = Filesystem::mimetype(PATH_APP . $outputDir . DS . $contentFile);
} else {
// Make sure we can handle preview of this type of file
if ($file->hasExtension('pdf') || $file->isImage() || !$file->isBinary()) {
$origin = $this->connection->provider->alias . '://' . $file->getPath();
$dest = 'compiled://' . $tempBase;
// Do the copy
Manager::adapter('local', ['path' => PATH_APP . $outputDir . DS], 'compiled');
Manager::copy($origin, $dest);
$contentFile = $tempBase;
}
}
// Parse output
if (!empty($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 = $server->serve();
if (!$result) {
// Should only get here on error
throw new Exception(Lang::txt('PLG_PROJECTS_FILES_SERVER_ERROR'), 404);
} else {
exit;
}
}
// 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;
$view->connection = $this->connection;
if ($this->getError()) {
$view->setError($this->getError());
}
return $view->loadTemplate();
}
/**
* Set mime type
*
* @return mixed
*/
public function setMimeType()
{
if (!$this->get('mimeType')) {
$this->set('mimeType', Filesystem::mimetype($this->get('fullPath')));
}
}
/**
* Get changes for sync
*
* @return array
*/
public function getChanges($localPath = '', $synced = '', $localDir = '', &$localRenames, $connections)
{
// Collector array
$locals = array();
// Initial sync
if ($synced == 1) {
$files = $this->callGit('ls-files --full-name ' . escapeshellarg($localDir));
$files = empty($files) || substr($files[0], 0, 5) == 'fatal' ? array() : $files;
if (empty($files)) {
return $locals;
}
foreach ($files as $filename) {
$type = 'file';
// We are only interested in last local change on the file
if (!isset($locals[$filename])) {
$time = strtotime(date('c', time()));
// Important! needs to be local time, NOT UTC
$locals[$filename] = array('status' => 'A', 'time' => $time, 'type' => $type, 'remoteid' => 0, 'converted' => 0, 'rParent' => NULL, 'local_path' => $filename, 'title' => basename($filename), 'author' => NULL, 'modified' => gmdate('Y-m-d H:i:s', $time), 'synced' => NULL, 'fullPath' => $localPath . DS . $filename, 'mimeType' => Filesystem::mimetype($localPath . DS . $filename), 'md5' => NULL, 'rename' => NULL);
}
}
} else {
// Collect
$since = $synced != 1 ? ' --since="' . $synced . '"' : '';
$where = $localDir ? ' --all -- ' . escapeshellarg($localDir) . ' ' : ' --all ';
$changes = $this->callGit('rev-list ' . $where . $since);
// Empty repo or no changes?
if (empty($changes) || trim(substr($changes[0], 0, 5)) == 'usage') {
$changes = array();
}
// Parse Git file list to find which items changed since last sync
if (count($changes) > 0) {
$timestamps = array();
// Get files involved in each commit
foreach ($changes as $hash) {
// Get time and author of commit
$time = $this->gitLog('', $hash, 'timestamp');
$author = $this->gitLog('', $hash, 'author');
// Get filename and change
$fileinfo = $this->callGit('diff --name-status ' . $hash . '^ ' . $hash);
// First commit
if (!empty($fileinfo) && !empty($fileinfo[0]) && substr($fileinfo[0], 0, 5) == 'fatal') {
$fileinfo = $this->callGit('log --pretty=oneline --name-status --root');
if (!empty($fileinfo)) {
// Remove first line
array_shift($fileinfo);
}
}
if (empty($fileinfo)) {
continue;
}
// Go through files
foreach ($fileinfo as $line) {
$n = substr($line, 0, 1);
if ($n == 'f') {
// First file in repository
$finfo = $this->callGit('log --pretty=oneline --name-status ' . $hash);
$status = 'A';
$filename = trim(substr($finfo[1], 1));
break;
} else {
$status = $n;
$filename = trim(substr($line, 1));
}
$type = 'file';
$rename = '';
// Detect a rename
if (isset($localRenames[$filename])) {
$rename = $localRenames[$filename];
} else {
$rename = $this->getRename($filename, $hash, $since);
if ($rename && $status == 'A') {
// Rename or move?
if (basename($rename) == basename($filename)) {
$status = 'W';
// this means 'move'
} else {
$status = 'R';
}
$localRenames[$filename] = $rename;
}
}
// Hidden file in local directory - treat as directory
if (preg_match("/.gitignore/", $filename)) {
$filename = dirname($filename);
// Skip home directory
if ($filename == '.') {
continue;
}
$type = 'folder';
}
// Specific local directory is synced?
$lFilename = $localDir ? preg_replace("/^" . $localDir . "\\//", "", $filename) : $filename;
$conn = isset($connections['paths']) ? $connections['paths'] : NULL;
$search = $status == 'R' || $status == 'W' ? $rename : $filename;
$found = isset($conn[$search]) && $conn[$search]['type'] == $type ? $conn[$search] : false;
// Rename/move connection not found - check against new name in case of repeat sync
if (!$found && ($status == 'R' || $status == 'W')) {
$found = isset($conn[$filename]) && $conn[$filename]['type'] == $type ? $conn[$filename] : false;
}
$remoteid = $found ? $found['remote_id'] : NULL;
$converted = $found ? $found['converted'] : 0;
$rParent = $found ? $found['rParent'] : NULL;
$syncT = $found ? $found['synced'] : NULL;
$md5Checksum = $type == 'file' && file_exists($localPath . DS . $filename) ? hash_file('md5', $localPath . DS . $filename) : NULL;
$mimeType = $type == 'file' ? Filesystem::mimetype($localPath . DS . $filename) : NULL;
// We are only interested in last local change on the file
if (!isset($locals[$lFilename])) {
$locals[$lFilename] = array('status' => $status, 'time' => $time, 'type' => $type, 'remoteid' => $remoteid, 'converted' => $converted, 'rParent' => $rParent, 'local_path' => $filename, 'title' => basename($filename), 'author' => $author, 'modified' => gmdate('Y-m-d H:i:s', $time), 'synced' => $syncT, 'fullPath' => $localPath . DS . $filename, 'mimeType' => $mimeType, 'md5' => $md5Checksum, 'rename' => $rename);
$timestamps[] = $time;
}
}
}
// Sort by time, most recent first
//array_multisort($timestamps, SORT_DESC, $locals, SORT_STRING);
}
}
return $locals;
}