/**
* @brief Loads an image from a local file.
* @param $imageref The path to a local file.
* @returns An image resource or false on error
*/
public function loadFromFile($imagePath = false)
{
// exif_imagetype throws "read error!" if file is less than 12 byte
if (!@is_file($imagePath) || !file_exists($imagePath) || filesize($imagePath) < 12 || !is_readable($imagePath)) {
// Debug output disabled because this method is tried before loadFromBase64?
OC_Log::write('core', 'OC_Image->loadFromFile, couldn\'t load: ' . $imagePath, OC_Log::DEBUG);
return false;
}
$iType = exif_imagetype($imagePath);
switch ($iType) {
case IMAGETYPE_GIF:
if (imagetypes() & IMG_GIF) {
$this->resource = imagecreatefromgif($imagePath);
} else {
OC_Log::write('core', 'OC_Image->loadFromFile, GIF images not supported: ' . $imagePath, OC_Log::DEBUG);
}
break;
case IMAGETYPE_JPEG:
if (imagetypes() & IMG_JPG) {
$this->resource = imagecreatefromjpeg($imagePath);
} else {
OC_Log::write('core', 'OC_Image->loadFromFile, JPG images not supported: ' . $imagePath, OC_Log::DEBUG);
}
break;
case IMAGETYPE_PNG:
if (imagetypes() & IMG_PNG) {
$this->resource = imagecreatefrompng($imagePath);
} else {
OC_Log::write('core', 'OC_Image->loadFromFile, PNG images not supported: ' . $imagePath, OC_Log::DEBUG);
}
break;
case IMAGETYPE_XBM:
if (imagetypes() & IMG_XPM) {
$this->resource = imagecreatefromxbm($imagePath);
} else {
OC_Log::write('core', 'OC_Image->loadFromFile, XBM/XPM images not supported: ' . $imagePath, OC_Log::DEBUG);
}
break;
case IMAGETYPE_WBMP:
if (imagetypes() & IMG_WBMP) {
$this->resource = imagecreatefromwbmp($imagePath);
} else {
OC_Log::write('core', 'OC_Image->loadFromFile, WBMP images not supported: ' . $imagePath, OC_Log::DEBUG);
}
break;
case IMAGETYPE_BMP:
$this->resource = $this->imagecreatefrombmp($imagePath);
break;
/*
case IMAGETYPE_TIFF_II: // (intel byte order)
break;
case IMAGETYPE_TIFF_MM: // (motorola byte order)
break;
case IMAGETYPE_JPC:
break;
case IMAGETYPE_JP2:
break;
case IMAGETYPE_JPX:
break;
case IMAGETYPE_JB2:
break;
case IMAGETYPE_SWC:
break;
case IMAGETYPE_IFF:
break;
case IMAGETYPE_ICO:
break;
case IMAGETYPE_SWF:
break;
case IMAGETYPE_PSD:
break;
*/
/*
case IMAGETYPE_TIFF_II: // (intel byte order)
break;
case IMAGETYPE_TIFF_MM: // (motorola byte order)
break;
case IMAGETYPE_JPC:
break;
case IMAGETYPE_JP2:
break;
case IMAGETYPE_JPX:
break;
case IMAGETYPE_JB2:
break;
case IMAGETYPE_SWC:
break;
case IMAGETYPE_IFF:
break;
case IMAGETYPE_ICO:
break;
case IMAGETYPE_SWF:
break;
case IMAGETYPE_PSD:
break;
*/
default:
// this is mostly file created from encrypted file
$this->resource = imagecreatefromstring(\OC\Files\Filesystem::file_get_contents(\OC\Files\Filesystem::getLocalPath($imagePath)));
$iType = IMAGETYPE_PNG;
OC_Log::write('core', 'OC_Image->loadFromFile, Default', OC_Log::DEBUG);
break;
}
if ($this->valid()) {
$this->imageType = $iType;
$this->mimeType = image_type_to_mime_type($iType);
$this->filePath = $imagePath;
}
return $this->resource;
}
/**
* return path to file which reflects one visible in browser
*
* @deprecated OC_Filesystem is replaced by \OC\Files\Filesystem
* @param string $path
* @return string
*/
public static function getLocalPath($path)
{
return \OC\Files\Filesystem::getLocalPath($path);
}
/**
* Loads an image from a local file.
*
* @param bool|string $imagePath The path to a local file.
* @return bool|resource An image resource or false on error
*/
public function loadFromFile($imagePath = false)
{
// exif_imagetype throws "read error!" if file is less than 12 byte
if (!@is_file($imagePath) || !file_exists($imagePath) || filesize($imagePath) < 12 || !is_readable($imagePath)) {
return false;
}
$iType = exif_imagetype($imagePath);
switch ($iType) {
case IMAGETYPE_GIF:
if (imagetypes() & IMG_GIF) {
$this->resource = imagecreatefromgif($imagePath);
// Preserve transparency
imagealphablending($this->resource, true);
imagesavealpha($this->resource, true);
} else {
$this->logger->debug('OC_Image->loadFromFile, GIF images not supported: ' . $imagePath, array('app' => 'core'));
}
break;
case IMAGETYPE_JPEG:
if (imagetypes() & IMG_JPG) {
$this->resource = imagecreatefromjpeg($imagePath);
} else {
$this->logger->debug('OC_Image->loadFromFile, JPG images not supported: ' . $imagePath, array('app' => 'core'));
}
break;
case IMAGETYPE_PNG:
if (imagetypes() & IMG_PNG) {
$this->resource = imagecreatefrompng($imagePath);
// Preserve transparency
imagealphablending($this->resource, true);
imagesavealpha($this->resource, true);
} else {
$this->logger->debug('OC_Image->loadFromFile, PNG images not supported: ' . $imagePath, array('app' => 'core'));
}
break;
case IMAGETYPE_XBM:
if (imagetypes() & IMG_XPM) {
$this->resource = imagecreatefromxbm($imagePath);
} else {
$this->logger->debug('OC_Image->loadFromFile, XBM/XPM images not supported: ' . $imagePath, array('app' => 'core'));
}
break;
case IMAGETYPE_WBMP:
if (imagetypes() & IMG_WBMP) {
$this->resource = imagecreatefromwbmp($imagePath);
} else {
$this->logger->debug('OC_Image->loadFromFile, WBMP images not supported: ' . $imagePath, array('app' => 'core'));
}
break;
case IMAGETYPE_BMP:
$this->resource = $this->imagecreatefrombmp($imagePath);
break;
/*
case IMAGETYPE_TIFF_II: // (intel byte order)
break;
case IMAGETYPE_TIFF_MM: // (motorola byte order)
break;
case IMAGETYPE_JPC:
break;
case IMAGETYPE_JP2:
break;
case IMAGETYPE_JPX:
break;
case IMAGETYPE_JB2:
break;
case IMAGETYPE_SWC:
break;
case IMAGETYPE_IFF:
break;
case IMAGETYPE_ICO:
break;
case IMAGETYPE_SWF:
break;
case IMAGETYPE_PSD:
break;
*/
/*
case IMAGETYPE_TIFF_II: // (intel byte order)
break;
case IMAGETYPE_TIFF_MM: // (motorola byte order)
break;
case IMAGETYPE_JPC:
break;
case IMAGETYPE_JP2:
break;
case IMAGETYPE_JPX:
break;
case IMAGETYPE_JB2:
break;
case IMAGETYPE_SWC:
break;
case IMAGETYPE_IFF:
break;
case IMAGETYPE_ICO:
break;
case IMAGETYPE_SWF:
break;
case IMAGETYPE_PSD:
break;
*/
default:
// this is mostly file created from encrypted file
$this->resource = imagecreatefromstring(\OC\Files\Filesystem::file_get_contents(\OC\Files\Filesystem::getLocalPath($imagePath)));
$iType = IMAGETYPE_PNG;
$this->logger->debug('OC_Image->loadFromFile, Default', array('app' => 'core'));
break;
}
if ($this->valid()) {
$this->imageType = $iType;
$this->mimeType = image_type_to_mime_type($iType);
$this->filePath = $imagePath;
}
return $this->resource;
}
/**
* Compile Latex File
*
* @NoAdminRequired
*
* @param string $path
* @param string $filename
* @param string $compiler
* @return DataResponse
*/
public function doCompile($path, $filename, $compiler)
{
$success = 'success';
$error = 'error';
try {
set_time_limit(0);
//scanning can take ages
// If they've set the compiler to something other than an allowable option....
if (!($compiler === 'xelatex' || $compiler === 'pdflatex' || $compiler === 'latex')) {
$compiler = 'latex';
}
// The real directory file
$workdir = dirname(\OC\Files\Filesystem::getLocalFile(stripslashes($path) . $filename));
$info = pathinfo($filename);
$fileext = '.' . $info['extension'];
$projectname = trim(basename($filename, $fileext));
$pdffile = $projectname . '.pdf';
$dvifile = $projectname . '.dvi';
$psfile = $projectname . '.ps';
$tocfile = $projectname . '.toc';
$logfile = $projectname . '.log';
$bibfile = $projectname;
// Bibtex File is without extension
// As we will write pdf/ps file(s) in the $path, we need to known if it's writable
if (!\OC\Files\Filesystem::isCreatable(stripslashes($path))) {
return new JSONResponse(array('data' => array('message' => 'As you don\'t have write permission in the owner directory, it\'s not possible to create output latex files.', 'output' => '')), Http::STATUS_BAD_REQUEST);
}
// Command to jump into directory
$cd_command = "cd " . str_replace(' ', '\\ ', trim($workdir));
// PDFLatex command preparation
if ($compiler == 'xelatex' || $compiler == 'pdflatex') {
$latex_command = $compiler . ' ' . $filename;
$bibtex_command = 'bibtex ' . $bibfile;
} else {
$latex_command = "latex -output-directory={$outpath} {$filename} ; cd {$outpath}; dvips {$dvifile} ; ps2pdf {$psfile}";
}
$output = "<b>========BEGIN COMPILE========</b>\n{$psfile} \n";
$output .= $cd_command . "\n";
$output .= getcwd() . "\n";
// First Compile
$output .= shell_exec($cd_command . " && pwd");
$return = shell_exec($cd_command . " && " . $latex_command);
$output .= getcwd() . "\n";
// For BibTeX
if ($compiler == 'pdflatex') {
// Second compile step with bibtex
$return .= shell_exec($cd_command . " && " . $bibtex_command);
// compile again after bibtex
$return .= shell_exec($cd_command . " && " . $latex_command);
}
$logfile = $workdir . '/' . $logfile;
$log = file_get_contents($logfile);
while (preg_match('/Return to get cross-references right/', $log) || preg_match('/No file ' . $tocfile . '/', $log)) {
$return .= shell_exec($cd_command . " && " . $this->latex_command);
$log = file_get_contents($logfile);
}
// ! at begining of a line indicate an error!
$errors = preg_grep("/^!/", explode("\n", $log));
if (empty($errors) === false) {
$log_array = explode("\n", $log);
$error = "\n";
foreach ($errors as $line => $msg) {
for ($i = $line; $i <= $line + 5; $i++) {
$error .= $log_array[$i] . "\n";
}
}
return new JSONResponse(array('data' => array('message' => $this->l->t('Compile failed with errors') . ' - <br/>', 'output' => nl2br($output . " % " . $latex_command . "\n" . $error)), 'status' => $error), Http::STATUS_OK);
}
// No PDF File !?
if (!file_exists($workdir . '/' . $pdffile)) {
return new JSONResponse(array('data' => array('message' => $this->l->t('Compile failed with errors') . ':<br/>', 'output' => nl2br($output . " % " . $latex_command . "\n" . file_get_contents($outpath . '/' . $logfile))), 'status' => $error), Http::STATUS_OK);
}
$output .= $return;
$output .= "\n========END COMPILE==========\n";
$oc_workdir = stripslashes(\OC\Files\Filesystem::getLocalPath($workdir));
$target = \OCP\Files::buildNotExistingFileName($oc_workdir, $pdffile);
$target = \OC\Files\Filesystem::normalizePath($target);
$meta = \OC\Files\Filesystem::getFileInfo($target);
if ($compiler === 'latex') {
$target = \OCP\Files::buildNotExistingFileName($oc_workdir, $psfile);
$target = \OC\Files\Filesystem::normalizePath($target);
$meta = \OC\Files\Filesystem::getFileInfo($target);
}
return new JSONResponse(array('data' => array('output' => nl2br($output), 'path' => $path, 'pdffile' => $pdffile, 'psfile' => $psfile, 'logfile' => $logfile), 'status' => $success), Http::STATUS_OK);
} catch (\Exception $e) {
return new DataResponse(['message' => $e], Http::STATUS_BAD_REQUEST);
}
}
