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<?php
// plugin namespace
namespace Plugins\Filepreviewer;
// core includes
use App\Core\Database;
use App\Models\File;
use App\Helpers\CacheHelper;
use App\Helpers\CoreHelper;
use App\Helpers\FileActionHelper;
use App\Helpers\FileHelper;
use App\Helpers\LogHelper;
use App\Helpers\PluginHelper;
use App\Services\Plugin;
use Plugins\Filepreviewer\PluginConfig;
class PluginFilepreviewer extends Plugin
{
const HOLDING_CACHE_SIZE = 1100;
const OG_THUMB_SIZE = 280;
public $config = null;
public $data = null;
public $settings = null;
public $cachePath = null;
public $permCachePath = null;
public function __construct() {
// load plugin config
$this->config = (new PluginConfig())->getPluginConfig();
// setup database
$db = Database::getDatabase();
// cache result in local memory cache
if (CacheHelper::cacheExists('PLUGIN_FILEPREVIEWER_CONSTRUCT_DATA') == false) {
$data = $db->getRow('SELECT * '
. 'FROM plugin '
. 'WHERE folder_name = ' . $db->quote($this->config['folder_name']) . ' '
. 'LIMIT 1');
CacheHelper::setCache('PLUGIN_FILEPREVIEWER_CONSTRUCT_DATA', $data);
}
$this->data = CacheHelper::getCache('PLUGIN_FILEPREVIEWER_CONSTRUCT_DATA');
if ($this->data) {
$this->settings = json_decode($this->data['plugin_settings'], true);
}
$this->cachePath = CACHE_DIRECTORY_ROOT . '/plugins/filepreviewer/';
$this->permCachePath = CACHE_DIRECTORY_ROOT . '/perm_cache/filepreviewer/';
}
public function registerRoutes(\FastRoute\RouteCollector $r) {
// register plugin routes
$r->addRoute(['GET', 'POST'], '/' . ADMIN_FOLDER_NAME . '/plugin/' . $this->config['folder_name'] . '/settings', '\plugins\\' . $this->config['folder_name'] . '\controllers\admin\PluginController/pluginSettings');
$r->addRoute(['GET'], '/file/{shortUrl}[/{fileName}]', '\plugins\filepreviewer\controllers\FilepreviewerController/directFile');
$r->addRoute(['GET'], '/cache/plugins/filepreviewer/{fileId:[0-9]+}/pdf/{width:[0-9]+}x{height:[0-9]+}_{method}_{md5PluginSettings}.jpg', '\plugins\filepreviewer\controllers\FilepreviewerController/pdfThumbnail');
$r->addRoute(['GET'], '/cache/plugins/filepreviewer/{fileId:[0-9]+}/{fileHash}/{width:[0-9]+}x{height:[0-9]+}_{method}.{extension}', '\plugins\filepreviewer\controllers\FilepreviewerController/resizeImage');
$r->addRoute(['GET'], '/document/embed/{shortUrl}/{width}x{height}[/{fileName}]', '\plugins\filepreviewer\controllers\FilepreviewerController/embedDocument');
$r->addRoute(['GET'], '/video/embed/{shortUrl}/{width}x{height}[/{fileName}]', '\plugins\filepreviewer\controllers\FilepreviewerController/embedVideo');
$r->addRoute(['GET'], '/video/subtitles/{fileName}', '\plugins\filepreviewer\controllers\FilepreviewerController/subtitleProxy');
$r->addRoute(['GET'], '/audio/embed/{shortUrl}/{width}x{height}[/{fileName}]', '\plugins\filepreviewer\controllers\FilepreviewerController/embedAudio');
$r->addRoute(['GET'], '/text/view/{downloadToken}/{shortUrl}', '\plugins\filepreviewer\controllers\FilepreviewerController/textView');
// routes for legacy purposes
$r->addRoute(['GET'], '/image/{shortUrl}[/{fileName}]', '\plugins\filepreviewer\controllers\FilepreviewerController/directFile');
$r->addRoute(['GET'], '/plugins/docviewer/site/_embed.php', '\plugins\filepreviewer\controllers\FilepreviewerController/embedDocumentLegacy');
$r->addRoute(['GET'], '/plugins/mediaplayer/site/_embed.php', '\plugins\filepreviewer\controllers\FilepreviewerController/embedVideoLegacy');
$r->addRoute(['GET'], '/plugins/imageviewer/site/direct.php', '\plugins\filepreviewer\controllers\FilepreviewerController/directFileLegacy');
$r->addRoute(['GET'], '/plugins/mediaplayer/site/direct.php', '\plugins\filepreviewer\controllers\FilepreviewerController/directFileLegacy');
$r->addRoute(['GET'], '/plugins/imageviewer/site/thumb.php', '\plugins\filepreviewer\controllers\FilepreviewerController/resizeImageLegacy');
}
public function getPluginDetails() {
return $this->config;
}
public function uninstall() {
// setup database
$db = Database::getDatabase();
// remove plugin specific tables
$sQL = 'DROP TABLE plugin_filepreviewer_background_thumb';
$db->query($sQL);
$sQL = 'DROP TABLE plugin_filepreviewer_meta';
$db->query($sQL);
$sQL = 'DROP TABLE plugin_filepreviewer_watermark';
$db->query($sQL);
return parent::uninstall();
}
function getHoldingCacheSize() {
return self::HOLDING_CACHE_SIZE;
}
public function getOGThumbSize() {
return self::OG_THUMB_SIZE;
}
public function deleteImagePreviewCache($fileId) {
$this->deleteImageCache($fileId, true, false);
}
public function deleteImageCache($fileId, $instant = false, $doPermCache = true) {
// get cache path
$cacheFilePath = $this->cachePath . (int) $fileId;
if ($instant == true) {
CacheHelper::removeCacheSubFolder('plugins/filepreviewer/' . (int) $fileId);
if ($doPermCache == true) {
CacheHelper::removeCacheSubFolder('perm_cache/filepreviewer/' . (int) $fileId);
}
}
// queue cache for delete
$file = File::loadOneById($fileId);
$fileServerType = 'local';
if ($file) {
$fileServer = $file->loadFileServer();
$fileServerType = $fileServer['serverType'];
}
// for 'direct' servers the cache is stored on them servers, otherwise it's
// on the main server.
// 'direct' server cache wont be scheduled for removal on file delete,
// it's scheduled when the item in the file action queue is processed since
// it's the only time we can check for existance
if ($fileServerType === 'direct') {
$serverId = FileHelper::getCurrentServerId();
}
else {
$serverId = FileHelper::getDefaultLocalServerId();
}
if ($serverId) {
// get all file listing
if (file_exists($cacheFilePath)) {
$filePaths = CoreHelper::getDirectoryList($cacheFilePath, null, true);
if (is_array($filePaths)) {
if (count($filePaths) && count($filePaths) < 100) {
// reverse array so folders are done last
$filePaths = array_reverse($filePaths);
foreach ($filePaths AS $filePath) {
FileActionHelper::queueDeleteFile($serverId, $filePath, $fileId);
}
}
}
// add folder aswell
FileActionHelper::queueDeleteFile($serverId, $cacheFilePath, $fileId);
}
// remove any perm_cache
if ($doPermCache == true) {
if (file_exists($this->permCachePath . (int) $fileId)) {
$filePaths = CoreHelper::getDirectoryList($this->permCachePath . (int) $fileId, null, true);
if (is_array($filePaths)) {
if (count($filePaths) && count($filePaths) < 100) {
// reverse array so folders are done last
$filePaths = array_reverse($filePaths);
foreach ($filePaths AS $filePath) {
FileActionHelper::queueDeleteFile($serverId, $filePath, $fileId);
}
}
}
// add folder aswell
FileActionHelper::queueDeleteFile($serverId, $this->permCachePath . (int) $fileId, $fileId);
}
}
}
}
public function isAnimatedGif($imageFileContents) {
$str_loc = 0;
$count = 0;
while ($count < 2) { # There is no point in continuing after we find a 2nd frame
$where1 = strpos($imageFileContents, "\x00\x21\xF9\x04", $str_loc);
if ($where1 === false) {
break;
}
else {
$str_loc = $where1 + 1;
$where2 = strpos($imageFileContents, "\x00\x2C", $str_loc);
if ($where2 === false) {
break;
}
else {
if ($where1 + 8 == $where2) {
$count++;
}
$str_loc = $where2 + 1;
}
}
}
if ($count > 1) {
return true;
}
return false;
}
public function createEmbedImageThumbUrl($file) {
$o = 'jpg';
if (in_array($file->extension, $this->getAnimatedFileExtensions())) {
$o = 'gif';
}
return $this->createImageCacheUrl((array) $file, $this->settings['thumb_size_w'], $this->settings['thumb_size_h'], $this->settings['thumb_resize_method'], $o);
}
public function createImageCacheUrl($fileArr, $thumbnailWidth, $thumbnailHeight, $method = 'cropped', $extension = 'jpg') {
$fileUniqueHash = $fileArr['unique_hash'];
if (strlen($fileUniqueHash) == 0) {
$fileUniqueHash = FileHelper::createUniqueFileHash($fileArr['id']);
}
$url = _CONFIG_SITE_PROTOCOL . '://' . FileHelper::getFileDomainAndPath($fileArr['id'], $fileArr['serverId'], true, true) . '/' . CACHE_DIRECTORY_NAME . '/plugins/filepreviewer/' . $fileArr['id'] . '/' . $fileUniqueHash . '/' . (int) $thumbnailWidth . 'x' . (int) $thumbnailHeight . '_' . $method . '.' . $extension;
return $url;
}
public function createImagePHPUrl($fileId, $thumbnailWidth, $thumbnailHeight, $method = 'cropped', $serverId = null, $fileUniqueHash = null, $fileType = 'jpg') {
return _CONFIG_SITE_PROTOCOL . '://' . FileHelper::getFileDomainAndPath($fileId, $serverId, true, true) . '/cache/plugins/filepreviewer/' . (int) $fileId . '/' . $fileUniqueHash . '/' . (int) $thumbnailWidth . 'x' . (int) $thumbnailHeight . '_' . $method . '.' . $fileType;
}
public function getCacheUrlPHPFromBrowserUrl($browserUrl) {
// example url - cache/plugins/filepreviewer/2966/006c03e9e4dd38da330032daff94088bc44d1ff541b9573d114b86d755657b6a/190x190_maximum.jpg / .gif
$w = 0;
$h = 0;
$m = 'cropped';
$fileId = 0;
$fileType = 'jpg';
if (substr($browserUrl, strlen($browserUrl) - 3, 3) == 'gif') {
$fileType = 'gif';
}
// break apart url and loop to find data
$urlParts = explode('/', $browserUrl);
$useNext = false;
foreach ($urlParts AS $k => $urlPart) {
if ($fileId != 0) {
continue;
}
if ($useNext == true) {
$fileId = $urlParts[$k];
$fileUniqueHash = $urlParts[$k + 1];
$fileName = $urlParts[$k + 2];
$fileNameParts = preg_split("/(_|\.)/", $fileName);
$sizeParts = explode('x', $fileNameParts[0]);
$w = (int) $sizeParts[0];
if (isset($sizeParts[1])) {
$h = (int) $sizeParts[1];
}
if (isset($fileNameParts[1])) {
$m = $fileNameParts[1];
}
}
if ($urlPart == 'filepreviewer') {
$useNext = true;
}
}
// setup database
$db = Database::getDatabase();
// validate fileId
$fileId = $db->getValue('SELECT id '
. 'FROM file '
. 'WHERE unique_hash = :unique_hash '
. 'AND id = :id '
. 'LIMIT 1', array(
'id' => $fileId,
'unique_hash' => $fileUniqueHash,
));
return self::createImagePHPUrl($fileId, $w, $h, $m, null, $fileUniqueHash, $fileType);
}
// get smaller image to be used for thumbnail image creation, rather than original image, creates if not exists
public function getHoldingCache($file) {
$cacheFilePath = CACHE_DIRECTORY_ROOT . '/perm_cache/filepreviewer/';
$cacheFilePath .= $file->id . '/' . $file->getFileHash() . '/';
if (!file_exists($cacheFilePath)) {
mkdir($cacheFilePath, 0777, true);
}
$cacheFileName = (int) $this->getHoldingCacheSize() . 'x' . (int) $this->getHoldingCacheSize() . '_cropped.jpg';
$fullCachePath = $cacheFilePath . $cacheFileName;
if (!file_exists($fullCachePath)) {
// create original file
$contents = $file->downloadInternally();
// if using GD
if ($this->getImageLibrary() === 'gd') {
// load into memory
$im = imagecreatefromstring($contents);
if ($im === false) {
// failed reading image
return false;
}
// get image size
$imageWidth = imagesx($im);
$imageHeight = imagesy($im);
$newwidth = (int) $this->getHoldingCacheSize();
$newheight = ($imageHeight / $imageWidth) * $newwidth;
if ($newwidth > $imageWidth) {
$newwidth = $imageWidth;
}
if ($newheight > $imageHeight) {
$newheight = $imageHeight;
}
$tmp = imagecreatetruecolor($newwidth, $newheight);
$tmpH = imagesy($tmp);
// set background to white for transparent images
$back = imagecolorallocate($tmp, 255, 255, 255);
imagefilledrectangle($tmp, 0, 0, $newwidth, $newheight, $back);
// preserve transparency in gifs
if ($file->extension == 'gif') {
imagecolortransparent($tmp, imagecolorallocatealpha($tmp, 0, 0, 0, 127));
}
// image into the $tmp image
imagecopyresampled($tmp, $im, 0, 0, 0, 0, $newwidth, $newheight, $imageWidth, $imageHeight);
// save image
ob_start();
imagejpeg($tmp, null, 100);
$imageContent = ob_get_clean();
$rs = CacheHelper::saveCacheToFile('perm_cache/filepreviewer/' . $file->id . '/' . $cacheFileName, $imageContent);
// cleanup memory
imagedestroy($tmp);
if (!$rs) {
return false;
}
}
else {
// @TODO - add support for ImageMagick
return false;
}
}
return file_get_contents($fullCachePath);
}
function _mirrorImage($imgsrc) {
$width = imagesx($imgsrc);
$height = imagesy($imgsrc);
$src_x = $width - 1;
$src_y = 0;
$src_width = -$width;
$src_height = $height;
$imgdest = imagecreatetruecolor($width, $height);
if (imagecopyresampled($imgdest, $imgsrc, 0, 0, $src_x, $src_y, $width, $height, $src_width, $src_height)) {
return $imgdest;
}
return $imgsrc;
}
function autoRotateImage($file) {
if (!function_exists('exif_read_data')) {
return false;
}
// get image contents
$contents = $file->downloadInternally();
// temp save image in cache for exif function
$imageFilename = 'plugins/filepreviewer/_tmp/' . md5(microtime() . $file->id) . '.' . $file->extension;
$cachePath = CacheHelper::saveCacheToFile($imageFilename, $contents);
// rotate
$exif = exif_read_data($cachePath);
if ($exif && isset($exif['Orientation'])) {
$orientation = (int) $exif['Orientation'];
if ($orientation != 1) {
$img = imagecreatefromstring($contents);
$mirror = false;
$deg = 0;
switch ($orientation) {
case 2:
$mirror = true;
break;
case 3:
$deg = 180;
break;
case 4:
$deg = 180;
$mirror = true;
break;
case 5:
$deg = 270;
$mirror = true;
break;
case 6:
$deg = 270;
break;
case 7:
$deg = 90;
$mirror = true;
break;
case 8:
$deg = 90;
break;
}
if ($deg) {
$img = imagerotate($img, $deg, 0);
}
if ($mirror) {
$img = $this->_mirrorImage($img);
}
// load image info memory
ob_start();
imagejpeg($img, null, 100);
$imageContent = ob_get_clean();
// update image
$file->setFileContent($imageContent);
// cleanup memory
imagedestroy($img);
}
}
// clear cached file
CacheHelper::removeCacheFile($imageFilename);
return true;
}
// TODO - test with FTP storage and S3
function rotateImage($file, $direction = 'r') {
// only for jpg, png, gif at the moment
if (!in_array(strtolower($file->extension), array('jpg', 'jpeg', 'png', 'gif'))) {
return false;
}
// block if the file is a duplicate, @TODO
if ($file->isDuplicate()) {
return false;
}
// setup database
$db = Database::getDatabase();
// get image contents
$contents = $file->downloadInternally();
// rotate
$img = imagecreatefromstring($contents);
if (!$img) {
return false;
}
// figure out how to rotate
$deg = 0;
switch ($direction) {
case 'l':
$deg = 90;
break;
case 'r':
default:
$deg = 270;
break;
}
if ($deg) {
$img = imagerotate($img, $deg, 0);
}
// load image info memory
ob_start();
imagejpeg($img, null, 100);
$imageContent = ob_get_clean();
// update image
$file->setFileContent($imageContent);
// update new md5 file hash
$fileHash = MD5($imageContent);
$db->query('UPDATE file '
. 'SET fileHash = ' . $db->quote($fileHash) . ' '
. 'WHERE id = ' . (int) $file->id . ' '
. 'LIMIT 1');
// unique hash
FileHelper::createUniqueFileHash($file->id);
// cleanup memory
imagedestroy($img);
return true;
}
public function getDateTakenFromExifData($file, $exifData = array()) {
$dateTime = '';
if (COUNT($exifData)) {
if ((isset($exifData['DateTimeOriginal'])) && (strlen($exifData['DateTimeOriginal']))) {
$dateTime = $exifData['DateTimeOriginal'];
}
elseif ((isset($exifData['CreateDate'])) && (strlen($exifData['CreateDate']))) {
$dateTime = $exifData['CreateDate'];
}
elseif ((isset($exifData['DateTime'])) && (strlen($exifData['DateTime']))) {
$dateTime = $exifData['DateTime'];
}
elseif ((isset($exifData['ModifyDate'])) && (strlen($exifData['ModifyDate']))) {
$dateTime = $exifData['ModifyDate'];
}
// format date time
if (strlen($dateTime)) {
$datePieces = explode(' ', $dateTime);
if (COUNT($datePieces) == 2) {
return date('Y-m-d H:i:s', strtotime(str_replace(":", "-", $datePieces[0]) . " " . $datePieces[1]));
}
}
}
// fallback to todays date
return date('Y-m-d H:i:s');
}
public function getThumbnailImageQuality() {
if ((int) $this->settings['image_quality']) {
return (int) $this->settings['image_quality'];
}
return 90;
}
public function formatExifName($str) {
$str = str_replace('_', '', $str);
return preg_replace('/(?!^)[A-Z]{2,}(?=[A-Z][a-z])|[A-Z][a-z]/', ' $0', $str);
}
public function getDefaultImageWebPath() {
return PLUGIN_WEB_ROOT . '/filepreviewer/assets/img/default-album.png';
}
public function getImageColors($fileId) {
// get datbaase
$db = Database::getDatabase();
// get image colors
$imageColorsArr = array();
$imageColors = $db->getValue('SELECT image_colors '
. 'FROM plugin_filepreviewer_meta '
. 'WHERE file_id = ' . (int) $fileId . ' '
. 'LIMIT 1');
if (strlen($imageColors)) {
$imageColorsArr = explode(',', $imageColors);
}
return $imageColorsArr;
}
// which PHP image handling library to use
public function getImageLibrary() {
if (isset($this->settings['image_library'])) {
if (in_array($this->settings['image_library'], array('gd', 'imagemagick'))) {
return $this->settings['image_library'];
}
}
return 'gd';
}
public function calculateWatermarkPosition($positionStr, $rsImageW, $rsImageH, $watermarkImageW, $watermarkImageH, $xPadding = 0, $yPadding = 0) {
// defaults
$x = 0;
$y = 0;
switch ($positionStr) {
case 'top left':
$x = $xPadding;
$y = $yPadding;
break;
case 'top':
$x = (floor($rsImageW / 2) - floor($watermarkImageW / 2));
$y = $yPadding;
break;
case 'top right':
$x = $rsImageW - $watermarkImageW - $xPadding;
$y = $yPadding;
break;
case 'right':
$x = $rsImageW - $watermarkImageW - $xPadding;
$y = floor($rsImageH / 2) - floor($watermarkImageH / 2);
break;
case 'bottom right':
$x = $rsImageW - $watermarkImageW - $xPadding;
$y = $rsImageH - $watermarkImageH - $yPadding;
break;
case 'bottom':
$x = floor($rsImageW / 2) - floor($watermarkImageW / 2);
$y = $rsImageH - $watermarkImageH - $yPadding;
break;
case 'bottom left':
$x = $xPadding;
$y = $rsImageH - $watermarkImageH - $yPadding;
break;
case 'left':
$x = $xPadding;
$y = floor($rsImageH / 2) - floor($watermarkImageH / 2);
break;
case 'center':
$x = floor($rsImageW / 2) - floor($watermarkImageW / 2);
$y = floor($rsImageH / 2) - floor($watermarkImageH / 2);
break;
}
return array('x' => $x, 'y' => $y);
}
public function getAnimatedFileExtensions() {
return array('gif', 'mng'); // png added to resolve transparency issues
}
public function setupImageMetaAndCache(File $file) {
$rawData = array();
// get image size
$imageWidth = 0;
$imageHeight = 0;
// load plugin details
$pluginObj = PluginHelper::getInstance('filepreviewer');
$pluginDetails = PluginHelper::pluginSpecificConfiguration('filepreviewer');
$pluginSettings = json_decode($pluginDetails['data']['plugin_settings'], true);
// copy existing colors if file already exists
$imageColors = array();
$db = Database::getDatabase();
$originalFileId = $db->getValue('SELECT id '
. 'FROM file '
. 'WHERE fileHash = :fileHash '
. 'AND fileHash IS NOT NULL '
. 'AND id != :id '
. 'LIMIT 1', array(
'fileHash' => $file->fileHash,
'id' => $file->id,
));
if ($originalFileId) {
$metaData = $db->getRow('SELECT * '
. 'FROM plugin_filepreviewer_meta '
. 'WHERE file_id = :file_id '
. 'LIMIT 1', array(
'file_id' => (int) $originalFileId,
));
if ($metaData) {
$imageColors = explode(',', $metaData['image_colors']);
}
}
// get file contents
$contents = $file->downloadInternally();
if (!$contents) {
return false;
}
// which size the cache should be (same as the main image preview)
$width = $this->getHoldingCacheSize();
$height = $this->getHoldingCacheSize();
$holdingCacheExists = false;
if ((int) $pluginSettings['caching'] == 1) {
// prepare cache path
$cacheFilePath = CACHE_DIRECTORY_ROOT . '/perm_cache/filepreviewer/';
$cacheFilePath .= $file->id . '/' . $file->getFileHash() . '/';
if (!file_exists($cacheFilePath)) {
mkdir($cacheFilePath, 0777, true);
}
$cacheFileName = $width . 'x' . $height . '_cropped.jpg';
$fullCachePath = $cacheFilePath . $cacheFileName;
if (file_exists($fullCachePath)) {
$holdingCacheExists = true;
return true;
}
}
// create holding cache
if ($pluginObj->getImageLibrary() == 'gd') {
// get exif data
if (function_exists('exif_read_data')) {
$imageFilename = 'plugins/filepreviewer/_tmp/' . md5(microtime() . $file->id) . '.' . $file->extension;
$cachePath = CacheHelper::saveCacheToFile($imageFilename, $contents);
$exif = exif_read_data($cachePath, 0, true);
if ($exif) {
foreach ($exif as $key => $section) {
// only log certain types of data
if (!in_array($key, array('IFD0', 'EXIF', 'COMMENT'))) {
continue;
}
foreach ($section as $name => $val) {
// stop really long data
if (COUNT($rawData) > 200) {
continue;
}
// limit text length just encase someone if trying to feed it invalid data
if (is_string($val)) {
$rawData[substr($name, 0, 200)] = substr($val, 0, 500);
}
}
}
}
// clear cached file
CacheHelper::removeCacheFile($imageFilename);
}
// create holding cache
// load image
require_once(CORE_FRAMEWORK_LIBRARIES_ROOT . '/image_resizer/CustomSimpleImage.php');
$img = new \CustomSimpleImage();
$rs = $img->load_from_image_content($contents);
// get image size
$imageWidth = $img->get_width();
$imageHeight = $img->get_height();
// if holding cache does not exist
if (($holdingCacheExists == false) && ($file->extension != 'png')) {
$img->best_fit($width, $height);
if ((int) $pluginObj->settings['auto_rotate'] == 1) {
$img->auto_orient();
}
// save image
ob_start();
$img->output('jpg', 100);
$imageContent = ob_get_clean();
file_put_contents($fullCachePath, $imageContent);
}
}
else {
// save image in tmp for Imagick
$tmpImageFile = tempnam('/tmp', 'img-') . '.' . $file->extension;
$tmpImage = fopen($tmpImageFile, 'w+');
fwrite($tmpImage, $contents);
fclose($tmpImage);
// start Imagick
try {
$imagick = new \imagick($tmpImageFile);
}
catch (\ImagickException $e) {
LogHelper::error('ImagickException: ' . $e->getMessage());
return false;
}
// get image size
$imageWidth = $imagick->getImageWidth();
$imageHeight = $imagick->getImageHeight();
// get exif data
$exif = $imagick->getImageProperties("*");
foreach ($exif as $name => $val) {
// stop really long data
if (COUNT($rawData) > 200) {
continue;
}
// only log certain types of data
if ((substr($name, 0, 5) != 'date:') && (substr($name, 0, 5) != 'exif:')) {
continue;
}
// tidy name
$name = trim(substr($name, 5));
// limit text length just encase someone if trying to feed it invalid data
if (is_string($val)) {
$rawData[substr($name, 0, 200)] = substr($val, 0, 500);
}
}
// create cache
if (($holdingCacheExists == false) && ($file->extension != 'png')) {
// set as jpg/gif
if (in_array($file->extension, $pluginObj->getAnimatedFileExtensions())) {
// get first frame for static preview
$firstFrameImagick = $imagick->coalesceImages();
foreach ($firstFrameImagick as $k => $frame) {
if ($k == 0) {
$imagick = $frame;
}
}
}
else {
// set the background to white
$imagick->setImageBackgroundColor('white');
// flatten the image to remove layers and transparency
$imagick->mergeImageLayers(\imagick::LAYERMETHOD_FLATTEN);
// set as jpg
$imagick->setImageFormat('jpeg');
}
// set the background to white
$imagick->setImageBackgroundColor('white');
// set as jpg
$imagick->setImageFormat('jpeg');
// check width
$w = $imagick->getImageWidth();
if ($w > $width) {
$imagick->thumbnailImage($width, null, 0);
}
// now check height
$h = $imagick->getImageHeight();
if ($h > $height) {
$imagick->thumbnailImage(null, $height, 0);
}
// should we auto rotate the preview image
if ((int) $pluginObj->settings['auto_rotate'] == 1) {
$orientation = $imagick->getImageOrientation();
switch ($orientation) {
case \imagick::ORIENTATION_BOTTOMRIGHT:
$imagick->rotateimage("#000", 180); // rotate 180 degrees
break;
case \imagick::ORIENTATION_RIGHTTOP:
$imagick->rotateimage("#000", 90); // rotate 90 degrees CW
break;
case \imagick::ORIENTATION_LEFTBOTTOM:
$imagick->rotateimage("#000", -90); // rotate 90 degrees CCW
break;
}
}
// remove any meta data for privacy
$imagick->stripImage();
// save jpg for later in cache
$imagick->writeImage($fullCachePath);
}
// EXTRACT THE COMMON IMAGE COLORS
if (COUNT($imageColors) == 0) {
// reduce the amount of colors to 6
$imagick->quantizeImage(6, \imagick::COLORSPACE_RGB, 0, true, false);
// only save one pixel of each color
$imagick->uniqueImageColors();
// get ImagickPixelIterator
$it = $imagick->getPixelIterator();
// reset the iterator
$it->resetIterator();
// loop through rows
while ($row = $it->getNextIteratorRow()) {
// loop through columns
foreach ($row as $pixel) {
// covert pixel to hex color
$color = $pixel->getColor();
$imageColors[] = '#' . strtoupper(sprintf('%02x', $color['r']) . sprintf('%02x', $color['g']) . sprintf('%02x', $color['b']));
}
}
}
// tidy up
$imagick->clear();
@unlink($tmpImageFile);
}
// get date taken
$dateTaken = $pluginObj->getDateTakenFromExifData($file, $rawData);
// double check we don't have a record already
$rs = $db->getRow('SELECT id '
. 'FROM plugin_filepreviewer_meta '
. 'WHERE file_id = ' . (int) $file->id . ' '
. 'LIMIT 1');
if (!$rs) {
// store meta data
$sQL = "INSERT INTO plugin_filepreviewer_meta "
. "(file_id, width, height, raw_data, date_taken, image_colors, image_bg_color) "
. "VALUES (:file_id, :width, :height, :raw_data, :date_taken, :image_colors, :image_bg_color)";
$stmt = $db->query($sQL, array(
'file_id' => $file->id,
'width' => $imageWidth,
'height' => $imageHeight,
'raw_data' => json_encode($rawData),
'date_taken' => $dateTaken,
'image_colors' => implode(',', $imageColors),
'image_bg_color' => '',
));
}
}
public function getGeneralFileType(File $file) {
$ext = strtolower($file->extension);
if (($this->settings['enable_preview_image'] == 1) && (in_array($ext, explode(',', $this->settings['supported_image_types'])))) {
return 'image';
}
if (($this->settings['enable_preview_document'] == 1) && (in_array($ext, explode(',', $this->settings['preview_document_ext'])))) {
return 'document';
}
if (($this->settings['enable_preview_video'] == 1) && (in_array($ext, explode(',', $this->settings['preview_video_ext'])))) {
return 'video';
}
if (($this->settings['enable_preview_audio'] == 1) && (in_array($ext, explode(',', $this->settings['preview_audio_ext'])))) {
return 'audio';
}
if (($this->settings['enable_preview_text'] == 1) && (in_array($ext, explode(',', $this->settings['preview_text_ext'])))) {
return 'text';
}
return 'download';
}
public function areDirectLinksAllowed() {
if (isset($this->settings['allow_direct_links'])) {
return (bool) $this->settings['allow_direct_links'];
}
return false;
}
public function getDocumentMaxDisplaySize() {
return 52428800;
}
public function getTextMaxDisplaySize() {
return 1024 * 1024 * 2;
}
public function getEmbededDocumentIframeCode($file) {
$pluginObj = PluginHelper::getInstance('filepreviewer');
return '<iframe src="' . WEB_ROOT . '/document/embed/' . $file->shortUrl . '/' . $pluginObj->settings['documents_embed_document_size_w'] . 'x' . $pluginObj->settings['documents_embed_document_size_h'] . '/' . $file->getSafeFilenameForUrl() . '" frameborder="0" scrolling="no" style="width: ' . $pluginObj->settings['documents_embed_document_size_w'] . 'px; height: ' . $pluginObj->settings['documents_embed_document_size_h'] . 'px; overflow: hidden;"></iframe>';
}
public function getEmbededVideoIframeCode($file) {
$pluginObj = PluginHelper::getInstance('filepreviewer');
return '<iframe src="' . WEB_ROOT . '/video/embed/' . $file->shortUrl . '/' . $pluginObj->settings['videos_embed_size_w'] . 'x' . $pluginObj->settings['videos_embed_size_h'] . '/' . $file->getSafeFilenameForUrl() . '" frameborder="0" scrolling="no" style="width: ' . $pluginObj->settings['videos_embed_size_w'] . 'px; height: ' . $pluginObj->settings['videos_embed_size_h'] . 'px; overflow: hidden;" allowfullscreen></iframe>';
}
public function getEmbededAudioIframeCode($file) {
$pluginObj = PluginHelper::getInstance('filepreviewer');
return '<iframe src="' . WEB_ROOT . '/audio/embed/' . $file->shortUrl . '/' . $pluginObj->settings['audio_embed_size_w'] . 'x' . $pluginObj->settings['audio_embed_size_h'] . '/' . $file->getSafeFilenameForUrl() . '" frameborder="0" scrolling="no" style="width: ' . $pluginObj->settings['audio_embed_size_w'] . 'px; height: ' . $pluginObj->settings['audio_embed_size_h'] . 'px; overflow: hidden;" allowfullscreen></iframe>';
}
public function getSubtitles(File $file) {
// setup database
$db = Database::getDatabase();
// lookup for subtitle files
$subTitleValidExt = array('vtt', 'srt', 'txt');
$subtitleArr = array();
$subtitles = $db->getRows('SELECT * '
. 'FROM file '
. 'WHERE status = "active" '
. 'AND folderId ' . ((int) $file->folderId ? ('= ' . (int) $file->folderId) : 'IS NULL') . ' '
. 'AND originalFilename LIKE "' . $db->escape(str_replace('.' . $file->extension, '', $file->originalFilename)) . '%" '
. 'AND extension IN ("' . implode('","', $subTitleValidExt) . '") '
. 'AND userId = ' . (int) $file->userId);
if ($subtitles) {
foreach ($subtitles AS $subtitle) {
$subtitleFile = File::hydrateSingleRecord($subtitle);
$originalBasePath = str_replace('.' . $file->extension, '', $file->originalFilename);
$subtitleLabel = str_replace($originalBasePath, '', $subtitleFile->originalFilename);
$subtitleLabel = trim(str_replace($subTitleValidExt, '', $subtitleLabel));
// tidy the label
$reps = array('.', '-', '_');
foreach ($reps AS $rep) {
if (substr($subtitleLabel, strlen($subtitleLabel) - 1, 1) == $rep) {
$subtitleLabel = substr($subtitleLabel, 0, strlen($subtitleLabel) - 1);
}
if (substr($subtitleLabel, 0, 1) == $rep) {
$subtitleLabel = substr($subtitleLabel, 1, strlen($subtitleLabel) - 1);
}
}
if (strlen($subtitleLabel) == 0) {
$subtitleLabel = 'Eng';
}
// format for javascript
$subtitleUrl = $subtitleFile->generateDirectDownloadUrlForMedia(false);
// route subtitles via a proxy script if not on the current server,
// to resolve CORS issues
if ((int) $subtitleFile->serverId !== FileHelper::getCurrentServerId()) {
$subtitleUrl = WEB_ROOT . '/video/subtitles/'.$subtitleFile->getSafeFilenameForUrl().'?b=' . CoreHelper::encryptValue($subtitleUrl);
}
// fix for "?rand=" code within Ultimate Video Player
$subtitleUrl .= '&';
$subtitleArr[] = array('source' => $subtitleUrl, 'label' => $subtitleLabel);
}
}
return $subtitleArr;
}
public function getVideoPlayer() {
if (isset($this->settings['preview_video_player'])) {
return $this->settings['preview_video_player'];
}
return 'ultimate';
}
public function getAudioPlayer() {
if (isset($this->settings['preview_audio_player'])) {
return $this->settings['preview_audio_player'];
}
return 'ultimate';
}
}