mirror of
https://github.com/24eme/signaturepdf
synced 2026-03-14 13:55:44 +01:00
09bbb7b9cd
share action create admin key stored on server side and localstorage if adminKey found on localStorage, display a small trash icon if clicked, send an ajax request, verify the key, and delete both localstorage and files on the server
580 lines
19 KiB
PHP
580 lines
19 KiB
PHP
<?php
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setlocale(LC_ALL, "");
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require(__DIR__.'/lib/GPGCryptography.class.php');
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require(__DIR__.'/lib/NSSCryptography.class.php');
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require(__DIR__.'/lib/PDFSignature.class.php');
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require(__DIR__.'/lib/Image2SVG.class.php');
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require(__DIR__.'/lib/Compression.class.php');
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$f3 = require(__DIR__.'/vendor/fatfree/base.php');
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$f3->set('FALLBACK', null);
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$f3->language(isset($f3->get('HEADERS')['Accept-Language']) ? $f3->get('HEADERS')['Accept-Language'] : '');
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session_start();
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if(getenv("DEBUG")) {
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$f3->set('DEBUG', getenv("DEBUG"));
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}
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$f3->set('SUPPORTED_LANGUAGES',
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[
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'ar' => 'العربية',
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'de' => 'Deutsch',
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'en' => 'English',
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'es' => 'Español',
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'eu' => 'Euskara',
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'fr' => 'Français',
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'it' => 'Italiano',
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'gl' => 'Galego',
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'kab' => 'Taqbaylit',
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'oc' => 'Occitan',
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'pl' => 'Polski',
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'ro' => 'Română',
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'ta' => 'தமிழ்',
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'tr' => 'Türkçe'
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]);
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$f3->set('XFRAME', null); // Allow use in an iframe
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$f3->set('ROOT', __DIR__);
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$f3->set('UI', $f3->get('ROOT')."/templates/");
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$f3->set('UPLOADS', sys_get_temp_dir()."/");
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$f3->set('COMMIT', getCommit());
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$f3->config(__DIR__.'/config/config.ini');
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if (!$f3->exists('REVERSE_PROXY_URL')) {
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$f3->set('REVERSE_PROXY_URL', '');
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}
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if($f3->get('PDF_STORAGE_PATH') && !preg_match('|/$|', $f3->get('PDF_STORAGE_PATH'))) {
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$f3->set('PDF_STORAGE_PATH', $f3->get('PDF_STORAGE_PATH').'/');
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}
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$f3->set('disableOrganization', false);
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if($f3->get('DISABLE_ORGANIZATION')) {
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$f3->set('disableOrganization', $f3->get('DISABLE_ORGANIZATION'));
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}
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$f3->set('ADMIN_AUTHORIZED_IP', array_merge(["localhost", "127.0.0.1", "::1"], explode(' ', $f3->get('ADMIN_AUTHORIZED_IP') . '')));
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$f3->set('IS_ADMIN', in_array(@$_SERVER["REMOTE_ADDR"], $f3->get('ADMIN_AUTHORIZED_IP')));
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if ($f3->get('GET.lang')) {
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selectLanguage($f3->get('GET.lang'), $f3, true);
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} elseif (isset($_COOKIE['LANGUAGE'])) {
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selectLanguage($_COOKIE['LANGUAGE'], $f3, true);
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} else {
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selectLanguage($f3->get('LANGUAGE'), $f3);
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}
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if (!$f3->exists('PDF_STORAGE_ENCRYPTION')) {
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$f3->set('PDF_STORAGE_ENCRYPTION', false);
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}
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if($f3->get('PDF_STORAGE_ENCRYPTION') && !GPGCryptography::isGpgInstalled()) {
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$f3->set('PDF_STORAGE_ENCRYPTION', false);
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}
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if ($f3->exists('NSS3_DIRECTORY') && $f3->exists('NSS3_PASSWORD') && $f3->exists('NSS3_NICK')) {
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NSSCryptography::getInstance($f3->get('NSS3_DIRECTORY'), $f3->get('NSS3_PASSWORD'), $f3->get('NSS3_NICK'));
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}
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$domain = basename(glob($f3->get('ROOT')."/locale/application_*.pot")[0], '.pot');
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bindtextdomain($domain, $f3->get('ROOT')."/locale");
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textdomain($domain);
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$f3->set('TRANSLATION_LANGUAGE', _("en"));
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$f3->set('DIRECTION_LANGUAGE', 'ltr');
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if($f3->get('TRANSLATION_LANGUAGE') == "ar") {
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$f3->set('DIRECTION_LANGUAGE', 'rtl');
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}
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if($f3->get('PDF_DEMO_LINK') === null || $f3->get('PDF_DEMO_LINK') === true) {
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if ($f3->get('TRANSLATION_LANGUAGE') == "ar") {
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$f3->set('PDF_DEMO_LINK', 'https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document_ar.pdf');
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} else {
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$f3->set('PDF_DEMO_LINK', 'https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document.pdf');
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}
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}
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$f3->route('GET /',
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function($f3) {
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$f3->set('activeTab', 'index');
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echo View::instance()->render('index.html.php');
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}
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);
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$f3->route('GET /signature',
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function($f3) {
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$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
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$f3->set('maxPage', ini_get('max_file_uploads') - 1);
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if(!$f3->get('PDF_STORAGE_PATH')) {
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$f3->set('noSharingMode', true);
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}
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if ($f3->exists('signature')) {
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$retentions = [];
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foreach ($f3->get('signature.retention') ?? [] as $key => $text) {
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$retentions[$key] = $text;
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}
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$f3->set('signatureRetention', $retentions);
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}
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$f3->set('activeTab', 'sign');
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echo View::instance()->render('signature.html.php');
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}
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);
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$f3->route('GET /signature/@hash',
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function($f3) {
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$f3->set('hash', Web::instance()->slug($f3->get('PARAMS.hash')));
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$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
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$f3->set('maxPage', ini_get('max_file_uploads') - 1);
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if(!is_dir($f3->get('PDF_STORAGE_PATH').$f3->get('hash'))) {
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$f3->error(404);
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}
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$f3->set('isPdfEncrypted', GPGCryptography::isPathEncrypted($f3->get('PDF_STORAGE_PATH').$f3->get('hash')));
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$f3->set('activeTab', 'sign');
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echo View::instance()->render('signature.html.php');
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}
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);
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$f3->route('POST /image2svg',
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function($f3) {
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$files = Web::instance()->receive(function($file,$formFieldName){
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if(strpos(Web::instance()->mime($file['tmp_name'], true), 'image/') !== 0) {
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return false;
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}
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return true;
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}, true, function($fileBaseName, $formFieldName) use ($f3) {
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return basename(tempnam($f3->get('UPLOADS'), 'pdfsignature_image2svg'));
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});
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$imageFile = null;
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foreach($files as $file => $valid) {
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if(!$valid) {
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continue;
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}
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$imageFile = $file;
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}
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if(!$imageFile) {
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$f3->error(403);
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}
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shell_exec(sprintf("convert -background white -flatten %s %s", $imageFile, $imageFile.".bmp"));
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shell_exec(sprintf("mkbitmap -x -f 8 %s -o %s", $imageFile.".bmp", $imageFile.".bpm"));
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shell_exec(sprintf("potrace --flat --svg %s -o %s", $imageFile.".bpm", $imageFile.".svg"));
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header('Content-Type: image/svg+xml');
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echo file_get_contents($imageFile.".svg");
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if($f3->get('DEBUG')) {
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return;
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}
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array_map('unlink', glob($imageFile."*"));
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}
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);
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$f3->route('POST /sign',
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function($f3) {
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$filename = null;
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$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_sign_'.uniqid("", true));
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unlink($tmpfile);
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$svgFiles = [];
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$files = Web::instance()->receive(function($file,$formFieldName){
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if($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
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$f3->error(403);
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}
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if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
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$f3->error(403);
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}
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return true;
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}, false, function($fileBaseName, $formFieldName) use ($f3, $tmpfile, &$filename, &$svgFiles) {
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if($formFieldName == "pdf") {
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$filename = str_replace(".pdf", "_signe.pdf", $fileBaseName);
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return basename($tmpfile).".pdf";
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}
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if($formFieldName == "svg") {
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$svgFiles[] = $tmpfile."_".$fileBaseName;
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return basename($tmpfile."_".$fileBaseName);
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}
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});
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if(!is_file($tmpfile.".pdf")) {
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$f3->error(403);
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}
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if(!count($svgFiles)) {
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$f3->error(403);
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}
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PDFSignature::createPDFFromSvg($svgFiles, $tmpfile.'.svg.pdf');
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PDFSignature::addSvgToPDF($tmpfile.'.pdf', $tmpfile.'.svg.pdf', $tmpfile.'_signe.pdf');
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if ($f3->get('POST.flatten')) {
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PDFSignature::flatten($tmpfile);
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}
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Web::instance()->send($tmpfile.'_signe.pdf', null, 0, TRUE, $filename);
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if($f3->get('DEBUG')) {
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return;
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}
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array_map('unlink', glob($tmpfile."*"));
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}
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);
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$f3->route('POST /share',
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function($f3) {
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if (!is_dir($f3->get('PDF_STORAGE_PATH'))) {
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$f3->error(500, 'Sharing folder doesn\'t exist');
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}
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if (!is_writable($f3->get('PDF_STORAGE_PATH'))) {
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$f3->error(500, 'Sharing folder is not writable');
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}
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$hash = Web::instance()->slug($_POST['hash']);
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$symmetricKey = (isset($_COOKIE[$hash])) ? GPGCryptography::protectSymmetricKey($_COOKIE[$hash]) : null;
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$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_share_'.uniqid($hash, true));
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unlink($tmpfile);
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$svgFiles = [];
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$originalFile = $tmpfile."_original.pdf";
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$originalFileBaseName = null;
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$files = Web::instance()->receive(function($file,$formFieldName){
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if($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
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$f3->error(403);
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}
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if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
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$f3->error(403);
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}
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return true;
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}, false, function($fileBaseName, $formFieldName) use ($tmpfile, $originalFile, &$svgFiles, &$originalFileBaseName) {
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if($formFieldName == "pdf") {
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$originalFileBaseName = $fileBaseName;
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return basename($originalFile);
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}
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if($formFieldName == "svg") {
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$svgFiles[] = $tmpfile."_".$fileBaseName;
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return basename($tmpfile."_".$fileBaseName);
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}
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});
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if(!count($files)) {
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$f3->error(403);
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}
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$pdfSignature = new PDFSignature($f3->get('PDF_STORAGE_PATH').$hash, $symmetricKey);
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$pdfSignature->createShare($originalFile, $originalFileBaseName, $f3->get('POST.duration'));
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if(count($svgFiles)) {
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$pdfSignature->addSignature($svgFiles);
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}
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if(!$f3->get('DEBUG')) {
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$pdfSignature->clean();
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}
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\Flash::instance()->setKey('openModal', 'shareinformations');
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\Flash::instance()->setKey("adminKey", $pdfSignature->createAdminKey());
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$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature/'.$hash.(($symmetricKey) ? '#'.$symmetricKey : null));
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}
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);
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$f3->route('GET @signature_deletion: /signature/@hash/delete/@key', function ($f3) {
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$sharingFolder = $f3->get('PDF_STORAGE_PATH');
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$baseHash = $sharingFolder.$f3->get('PARAMS.hash');
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if (is_dir($baseHash) === false) {
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$f3->error(403);
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}
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if (is_file($baseHash.'.admin') === false || is_readable($baseHash.'.admin') === false) {
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$f3->error(403);
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}
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if (file_get_contents($baseHash.'.admin') !== $f3->get('PARAMS.key')) {
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$f3->error(403);
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}
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GPGCryptography::hardUnlink($baseHash.'/.lock');
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GPGCryptography::hardUnlink($baseHash);
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unlink($baseHash.'.admin');
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unlink($baseHash.'.expire');
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$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature');
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});
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$f3->route('GET /signature/@hash/pdf',
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function($f3) {
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$f3->set('activeTab', 'sign');
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$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
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$symmetricKey = (isset($_COOKIE[$hash])) ? GPGCryptography::protectSymmetricKey($_COOKIE[$hash]) : null;
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$pdfSignature = new PDFSignature($f3->get('PDF_STORAGE_PATH').$hash, $symmetricKey);
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if(!$pdfSignature->verifyEncryption()) {
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$f3->error(403, 'Unable to decrypt pdf because of wrong symmetric key');
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}
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Web::instance()->send($pdfSignature->getPDF(), null, 0, TRUE, $pdfSignature->getPublicFilename());
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if($f3->get('DEBUG')) {
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return;
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}
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$pdfSignature->clean();
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}
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);
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$f3->route('POST /signature/@hash/save',
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function($f3) {
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$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
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$symmetricKey = (isset($_COOKIE[$hash])) ? GPGCryptography::protectSymmetricKey($_COOKIE[$hash]) : null;
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$pdfSignature = new PDFSignature($f3->get('PDF_STORAGE_PATH').$hash, $symmetricKey);
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if(!$pdfSignature->verifyEncryption()) {
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$f3->error(403, 'Unable to decrypt pdf because of wrong symmetric key');
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}
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$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_save_'.uniqid($hash, true));
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unlink($tmpfile);
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$svgFiles = [];
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$files = Web::instance()->receive(function($file,$formFieldName){
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if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
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$f3->error(403);
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}
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return true;
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}, false, function($fileBaseName, $formFieldName) use ($f3, $tmpfile, &$svgFiles) {
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if($formFieldName == "svg") {
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$svgFiles[] = $tmpfile."_".$fileBaseName;
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return basename($tmpfile."_".$fileBaseName);
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}
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});
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if(!count($svgFiles)) {
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$f3->error(403);
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}
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$pdfSignature->addSignature($svgFiles);
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if(!$f3->get('DEBUG')) {
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$pdfSignature->clean();
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}
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\Flash::instance()->setKey('openModal', 'signed');
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$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature/'.$hash.(($symmetricKey) ? '#'.$symmetricKey : null));
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}
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);
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$f3->route('GET /signature/@hash/nblayers',
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function($f3) {
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$f3->set('activeTab', 'sign');
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$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
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$symmetricKey = (isset($_COOKIE[$hash])) ? GPGCryptography::protectSymmetricKey($_COOKIE[$hash]) : null;
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$pdfSignature = new PDFSignature($f3->get('PDF_STORAGE_PATH').$hash, $symmetricKey);
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echo count($pdfSignature->getLayers());
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}
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);
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$f3->route('GET /cron', function($f3) {
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$sharingFolder = $f3->get('PDF_STORAGE_PATH');
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foreach(glob($sharingFolder.'*.expire') as $expireFile) {
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if(filemtime($expireFile) > time()) {
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continue;
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}
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$expiredFolder = str_replace('.expire', '', $expireFile);
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array_map('unlink', glob($expiredFolder."/*"));
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if(file_exists($expiredFolder.'/.lock')) {
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unlink($expiredFolder.'/.lock');
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}
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rmdir($expiredFolder);
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unlink($expireFile);
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}
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});
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if (!$f3->get('disableOrganization')) {
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$f3->route('GET /organization',
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function($f3) {
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$f3->set('activeTab', 'organize');
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echo View::instance()->render('organization.html.php');
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}
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);
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}
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$f3->route('GET /metadata',
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function($f3) {
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$f3->set('activeTab','metadata');
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echo View::instance()->render('metadata.html.php');
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}
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);
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$f3->route ('GET /administration',
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function ($f3) {
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if (! $f3->get('IS_ADMIN')) {
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die('You ('.$_SERVER['REMOTE_ADDR'].') are not allowed to access this file. Check '.basename(__FILE__).' for more information.');
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}
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$f3->set('activeTab','admin');
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echo View::instance()->render('admin_setup.html.php');
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});
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$f3->route('GET /compress',
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function($f3) {
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$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
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$f3->set('activeTab', 'compress');
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echo View::instance()->render('compress.html.php');
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}
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);
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$f3->route ('POST /compress',
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function($f3) {
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$filename = null;
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$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_compress_'.uniqid("", true));
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unlink($tmpfile);
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$files = Web::instance()->receive(function($file,$formFieldName) {
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if ($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
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$f3->error(403);
|
|
}
|
|
});
|
|
|
|
$compressionType = $f3->get('POST.compressionType');
|
|
if ($compressionType === 'medium') {
|
|
$compressionType = '/ebook';
|
|
} elseif ($compressionType === 'low') {
|
|
$compressionType = '/printer';
|
|
} else {
|
|
$compressionType = '/screen';
|
|
}
|
|
$filePath = reset(array_keys($files));
|
|
|
|
$outputFileName = str_replace(".pdf", "_compressed.pdf", $filePath);
|
|
|
|
$returnCode = shell_exec(sprintf("gs -sDEVICE=pdfwrite -dPDFSETTINGS=%s -dPassThroughJPEGImages=false -dPassThroughJPXImages=false -dAutoFilterGrayImages=false -dAutoFilterColorImages=false -dDetectDuplicateImages=true -dQUIET -dBATCH -o %s %s", $compressionType, $outputFileName, $filePath));
|
|
|
|
if ($returnCode === false) {
|
|
http_response_code("500");
|
|
header('Content-Type: text/plain');
|
|
echo _("PDF compression failed");
|
|
return;
|
|
} elseif (filesize($filePath) <= filesize($outputFileName)) {
|
|
http_response_code("500");
|
|
header('Content-Type: text/plain');
|
|
echo _("Your pdf is already optimized");
|
|
return;
|
|
} else {
|
|
header('Content-Type: application/pdf');
|
|
header("Content-Disposition: attachment; filename=".basename($outputFileName));
|
|
readfile($outputFileName);
|
|
}
|
|
|
|
unlink($outputFileName);
|
|
unlink($filePath);
|
|
}
|
|
);
|
|
|
|
$f3->route('GET /api/file/get', function($f3) {
|
|
$localRootFolder = $f3->get('PDF_LOCAL_PATH');
|
|
if (!$localRootFolder) {
|
|
$f3->error(403);
|
|
}
|
|
$pdf_path = $localRootFolder . '/' . $f3->get('GET.path');
|
|
$pdf_filename = basename($pdf_path);
|
|
if (!preg_match('/.pdf$/', $pdf_path)) {
|
|
$f3->error(403);
|
|
}
|
|
if (!file_exists($pdf_path)) {
|
|
$f3->error(403);
|
|
}
|
|
header('Content-type: application/pdf');
|
|
header("Content-Disposition: attachment; filename=$pdf_filename");
|
|
echo file_get_contents($pdf_path);
|
|
});
|
|
|
|
$f3->route('PUT /api/file/save', function($f3) {
|
|
$localRootFolder = $f3->get('PDF_LOCAL_PATH');
|
|
if (!$localRootFolder) {
|
|
$f3->error(403);
|
|
}
|
|
$pdf_path = $localRootFolder . '/' . $f3->get('GET.path');
|
|
$pdf_filename = basename($pdf_path);
|
|
if (!preg_match('/.pdf$/', $pdf_path)) {
|
|
$f3->error(403);
|
|
}
|
|
if (!file_exists($pdf_path)) {
|
|
$f3->error(403);
|
|
}
|
|
file_put_contents($pdf_path, $f3->get('BODY'));
|
|
|
|
});
|
|
|
|
function getCommit() {
|
|
if(!file_exists(__DIR__.'/.git/HEAD')) {
|
|
|
|
return null;
|
|
}
|
|
|
|
$head = str_replace(["ref: ", "\n"], "", file_get_contents(__DIR__.'/.git/HEAD'));
|
|
$commit = null;
|
|
|
|
if(strpos($head, "refs/") !== 0) {
|
|
$commit = $head;
|
|
}
|
|
|
|
if(file_exists(__DIR__.'/.git/'.$head)) {
|
|
$commit = str_replace("\n", "", file_get_contents(__DIR__.'/.git/'.$head));
|
|
}
|
|
|
|
return substr($commit, 0, 7);
|
|
}
|
|
|
|
function selectLanguage($lang, $f3, $putCookie = false) {
|
|
$langSupported = null;
|
|
foreach(explode(',', $lang) as $l) {
|
|
if(array_key_exists($l, $f3->get('SUPPORTED_LANGUAGES'))) {
|
|
$langSupported = $l;
|
|
break;
|
|
}
|
|
}
|
|
if(!$langSupported) {
|
|
return null;
|
|
}
|
|
if($putCookie) {
|
|
$cookieDate = strtotime('+1 year');
|
|
setcookie("LANGUAGE", $langSupported, ['expires' => $cookieDate, 'samesite' => 'Strict', 'path' => "/"]);
|
|
}
|
|
putenv("LANGUAGE=$langSupported");
|
|
}
|
|
|
|
function convertPHPSizeToBytes($sSize)
|
|
{
|
|
$sSuffix = strtoupper(substr($sSize, -1));
|
|
if (!in_array($sSuffix,array('P','T','G','M','K'))){
|
|
return (int)$sSize;
|
|
}
|
|
$iValue = substr($sSize, 0, -1);
|
|
switch ($sSuffix) {
|
|
case 'P': $iValue *= 1000;
|
|
case 'T': $iValue *= 1000;
|
|
case 'G': $iValue *= 1000;
|
|
case 'M': $iValue *= 1000;
|
|
case 'K': $iValue *= 1000; break;
|
|
}
|
|
return (int)$iValue;
|
|
}
|
|
|
|
return $f3;
|