deblan-mirror
/
24eme-signaturepdf
mirror of https://github.com/24eme/signaturepdf
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24eme-signaturepdf/app.php

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16 KiB
PHP
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<?php
setlocale(LC_ALL, "");
$f3 = require(__DIR__.'/vendor/fatfree/base.php');
$f3->set('FALLBACK', null);
$f3->language(isset($f3->get('HEADERS')['Accept-Language']) ? $f3->get('HEADERS')['Accept-Language'] : '');
session_start();
if(getenv("DEBUG")) {
$f3->set('DEBUG', getenv("DEBUG"));
}
$f3->set('SUPPORTED_LANGUAGES',
[
'ar' => 'العربية',
'de' => 'Deutsch',
'en' => 'English',
'fr' => 'Français',
'it' => 'Italiano',
'kab' => 'Taqbaylit',
'oc' => 'Occitan',
'ro' => 'Română',
'tr' => 'Türkçe'
]);
$f3->set('XFRAME', null); // Allow use in an iframe
$f3->set('ROOT', __DIR__);
$f3->set('UI', $f3->get('ROOT')."/templates/");
$f3->set('UPLOADS', sys_get_temp_dir()."/");
$f3->set('COMMIT', getCommit());
$f3->config(__DIR__.'/config/config.ini');
if (!$f3->exists('REVERSE_PROXY_URL')) {
$f3->set('REVERSE_PROXY_URL', '');
}
if($f3->get('PDF_STORAGE_PATH') && !preg_match('|/$|', $f3->get('PDF_STORAGE_PATH'))) {
$f3->set('PDF_STORAGE_PATH', $f3->get('PDF_STORAGE_PATH').'/');
}
$f3->set('disableOrganization', false);
if($f3->get('DISABLE_ORGANIZATION')) {
$f3->set('disableOrganization', $f3->get('DISABLE_ORGANIZATION'));
}
if ($f3->get('GET.lang')) {
selectLanguage($f3->get('GET.lang'), $f3, true);
} elseif (isset($_COOKIE['LANGUAGE'])) {
selectLanguage($_COOKIE['LANGUAGE'], $f3, true);
} else {
selectLanguage($f3->get('LANGUAGE'), $f3);
}
$domain = basename(glob($f3->get('ROOT')."/locale/application_*.pot")[0], '.pot');
bindtextdomain($domain, $f3->get('ROOT')."/locale");
textdomain($domain);
$f3->set('TRANSLATION_LANGUAGE', _("en"));
$f3->set('DIRECTION_LANGUAGE', 'ltr');
if($f3->get('TRANSLATION_LANGUAGE') == "ar") {
$f3->set('DIRECTION_LANGUAGE', 'rtl');
}
if($f3->get('PDF_DEMO_LINK') === null || $f3->get('PDF_DEMO_LINK') === true) {
if ($f3->get('TRANSLATION_LANGUAGE') == "ar") {
$f3->set('PDF_DEMO_LINK', 'https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document_ar.pdf');
} else {
$f3->set('PDF_DEMO_LINK', 'https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document.pdf');
}
}
$f3->route('GET /',
function($f3) {
$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature');
}
);
$f3->route('GET /signature',
function($f3) {
$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
$f3->set('maxPage', ini_get('max_file_uploads') - 1);
if(!$f3->get('PDF_STORAGE_PATH')) {
$f3->set('noSharingMode', true);
}
$f3->set('activeTab', 'sign');
echo View::instance()->render('signature.html.php');
}
);
$f3->route('GET /signature/@hash',
function($f3) {
$f3->set('hash', Web::instance()->slug($f3->get('PARAMS.hash')));
$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
$f3->set('maxPage', ini_get('max_file_uploads') - 1);
if(!is_dir($f3->get('PDF_STORAGE_PATH').$f3->get('hash'))) {
$f3->error(404);
}
$f3->set('activeTab', 'sign');
echo View::instance()->render('signature.html.php');
}
);
$f3->route('POST /image2svg',
function($f3) {
$files = Web::instance()->receive(function($file,$formFieldName){
if(strpos(Web::instance()->mime($file['tmp_name'], true), 'image/') !== 0) {
return false;
}
return true;
}, true, function($fileBaseName, $formFieldName) use ($f3) {
return basename(tempnam($f3->get('UPLOADS'), 'pdfsignature_image2svg'));
});
$imageFile = null;
foreach($files as $file => $valid) {
if(!$valid) {
continue;
}
$imageFile = $file;
}
if(!$imageFile) {
$f3->error(403);
}
shell_exec(sprintf("convert -background white -flatten %s %s", $imageFile, $imageFile.".bmp"));
shell_exec(sprintf("mkbitmap -x -f 8 %s -o %s", $imageFile.".bmp", $imageFile.".bpm"));
shell_exec(sprintf("potrace --svg %s -o %s", $imageFile.".bpm", $imageFile.".svg"));
header('Content-Type: image/svg+xml');
echo file_get_contents($imageFile.".svg");
if($f3->get('DEBUG')) {
return;
}
array_map('unlink', glob($imageFile."*"));
}
);
$f3->route('POST /sign',
function($f3) {
$filename = null;
$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_sign');
unlink($tmpfile);
$svgFiles = "";
$files = Web::instance()->receive(function($file,$formFieldName){
if($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
$f3->error(403);
}
if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
$f3->error(403);
}
return true;
}, false, function($fileBaseName, $formFieldName) use ($f3, $tmpfile, &$filename, &$svgFiles) {
if($formFieldName == "pdf") {
$filename = str_replace(".pdf", "_signe.pdf", $fileBaseName);
return basename($tmpfile).".pdf";
}
if($formFieldName == "svg") {
$svgFiles .= " ".$tmpfile."_".$fileBaseName;
return basename($tmpfile."_".$fileBaseName);
}
});
if(!is_file($tmpfile.".pdf")) {
$f3->error(403);
}
if(!$svgFiles) {
$f3->error(403);
}
shell_exec(sprintf("rsvg-convert -f pdf -o %s %s", $tmpfile.'.svg.pdf', $svgFiles));
shell_exec(sprintf("pdftk %s multistamp %s output %s", $tmpfile.".pdf", $tmpfile.'.svg.pdf', $tmpfile.'_signe.pdf'));
Web::instance()->send($tmpfile.'_signe.pdf', null, 0, TRUE, $filename);
if($f3->get('DEBUG')) {
return;
}
array_map('unlink', glob($tmpfile."*"));
}
);
$f3->route('POST /share',
function($f3) {
$hash = substr(hash('sha512', uniqid().rand()), 0, 20);
$sharingFolder = $f3->get('PDF_STORAGE_PATH').$hash;
$f3->set('UPLOADS', $sharingFolder."/");
if (!is_dir($f3->get('PDF_STORAGE_PATH'))) {
$f3->error(500, 'Sharing folder doesn\'t exist');
}
if (!is_writable($f3->get('PDF_STORAGE_PATH'))) {
$f3->error(500, 'Sharing folder is not writable');
}
mkdir($sharingFolder);
$expireFile = $sharingFolder.".expire";
file_put_contents($expireFile, $f3->get('POST.duration'));
touch($expireFile, date_format(date_modify(date_create(), file_get_contents($expireFile)), 'U'));
$filename = "original.pdf";
$tmpfile = tempnam($sharingFolder, date('YmdHis'));
$svgFiles = "";
$files = Web::instance()->receive(function($file,$formFieldName){
if($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
$f3->error(403);
}
if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
$f3->error(403);
}
return true;
}, false, function($fileBaseName, $formFieldName) use ($tmpfile, $filename, $sharingFolder, &$svgFiles) {
if($formFieldName == "pdf") {
file_put_contents($sharingFolder."/filename.txt", $fileBaseName);
return $filename;
}
if($formFieldName == "svg") {
$svgFiles .= " ".$tmpfile."_".$fileBaseName;
return basename($tmpfile."_".$fileBaseName);
}
});
if(!count($files)) {
$f3->error(403);
}
if($svgFiles) {
shell_exec(sprintf("rsvg-convert -f pdf -o %s %s", $tmpfile.'.svg.pdf', $svgFiles));
}
if(!$f3->get('DEBUG')) {
array_map('unlink', glob($tmpfile."*.svg"));
}
$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature/'.$hash."#informations");
}
);
$f3->route('GET /signature/@hash/pdf',
function($f3) {
$f3->set('activeTab', 'sign');
$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
$sharingFolder = $f3->get('PDF_STORAGE_PATH').$hash;
$files = scandir($sharingFolder);
$originalFile = $sharingFolder.'/original.pdf';
$finalFile = $sharingFolder.'/'.$f3->get('PARAMS.hash').uniqid().'.pdf';
$filename = $f3->get('PARAMS.hash').'.pdf';
if(file_exists($sharingFolder."/filename.txt")) {
$filename = file_get_contents($sharingFolder."/filename.txt");
}
$layers = [];
foreach($files as $file) {
if(strpos($file, 'svg.pdf') !== false) {
$layers[] = $sharingFolder.'/'.$file;
}
}
if (!$layers) {
Web::instance()->send($originalFile, null, 0, TRUE, $filename);
}
$filename = str_replace('.pdf', '_signe-'.count($layers).'x.pdf', $filename);
copy($originalFile, $finalFile);
$bufferFile = $finalFile.".tmp";
foreach($layers as $layerFile) {
shell_exec(sprintf("pdftk %s multistamp %s output %s", $finalFile, $layerFile, $bufferFile));
rename($bufferFile, $finalFile);
}
Web::instance()->send($finalFile, null, 0, TRUE, $filename);
if($f3->get('DEBUG')) {
return;
}
array_map('unlink', glob($finalFile."*"));
}
);
$f3->route('POST /signature/@hash/save',
function($f3) {
$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
$sharingFolder = $f3->get('PDF_STORAGE_PATH').$hash;
$f3->set('UPLOADS', $sharingFolder.'/');
$tmpfile = tempnam($sharingFolder, date('YmdHis'));
unlink($tmpfile);
$svgFiles = "";
$expireFile = $sharingFolder.".expire";
touch($expireFile, date_format(date_modify(date_create(), file_get_contents($expireFile)), 'U'));
$files = Web::instance()->receive(function($file,$formFieldName){
if($formFieldName == "svg" && strpos(Web::instance()->mime($file['tmp_name'], true), 'image/svg+xml') !== 0) {
$f3->error(403);
}
return true;
}, false, function($fileBaseName, $formFieldName) use ($f3, $tmpfile, &$svgFiles) {
if($formFieldName == "svg") {
$svgFiles .= " ".$tmpfile."_".$fileBaseName;
return basename($tmpfile."_".$fileBaseName);
}
});
if(!$svgFiles) {
$f3->error(403);
}
shell_exec(sprintf("rsvg-convert -f pdf -o %s %s", $tmpfile.'.svg.pdf', $svgFiles));
if(!$f3->get('DEBUG')) {
array_map('unlink', explode(' ', trim($svgFiles)));
}
$f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature/'.$f3->get('PARAMS.hash')."#signed");
}
);
$f3->route('GET /signature/@hash/nblayers',
function($f3) {
$f3->set('activeTab', 'sign');
$hash = Web::instance()->slug($f3->get('PARAMS.hash'));
$files = scandir($f3->get('PDF_STORAGE_PATH').$hash);
$nbLayers = 0;
foreach($files as $file) {
if(strpos($file, 'svg.pdf') !== false) {
$nbLayers++;
}
}
echo $nbLayers;
}
);
$f3->route('GET /cron', function($f3) {
$sharingFolder = $f3->get('PDF_STORAGE_PATH');
foreach(glob($sharingFolder.'*.expire') as $expireFile) {
if(filemtime($expireFile) > time()) {
continue;
}
$expiredFolder = str_replace('.expire', '', $expireFile);
array_map('unlink', glob($expiredFolder."/*"));
rmdir($expiredFolder);
unlink($expireFile);
}
});
if (!$f3->get('disableOrganization')) {
$f3->route('GET /organization',
function($f3) {
$f3->set('activeTab', 'organize');
echo View::instance()->render('organization.html.php');
}
);
}
$f3->route('GET /metadata',
function($f3) {
$f3->set('activeTab','metadata');
echo View::instance()->render('metadata.html.php');
}
);
$f3->route('GET /compress',
function($f3) {
$f3->set('error_message', "none");
$f3->set('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
$f3->set('activeTab', 'compress');
if (isset($_GET['err'])) {
$f3->set('error_message', "PDF optimized");
}
echo View::instance()->render('compress.html.php');
}
);
$f3->route ('POST /compress',
function($f3) {
$filename = null;
$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_sign');
unlink($tmpfile);
$files = Web::instance()->receive(function($file,$formFieldName) {
if ($formFieldName == "pdf" && strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
$f3->error(403);
}
});
$compressionType = $f3->get('POST.compressionType');
if ($compressionType === 'medium') {
$compressionType = '/ebook';
} elseif ($compressionType === 'low') {
$compressionType = '/printer';
} else {
$compressionType = '/screen';
}
$arrayPath = array_keys($files);
$filePath = reset($arrayPath);
$outputFileName = str_replace(".pdf", "_compressed.pdf", $filePath);
$returnCode = shell_exec(sprintf("gs -sDEVICE=pdfwrite -dPDFSETTINGS=%s -dQUIET -o %s %s", $compressionType, $outputFileName, $filePath));
if ($returnCode !== false) {
if (filesize($filePath) <= filesize($outputFileName)) {
$error = "pdfalreadyoptimized";
header('location: /compress?err=' . $error);
} else {
header('Content-Type: application/pdf');
header("Content-Disposition: attachment; filename=$outputFileName");
readfile($outputFileName);
unlink($outputFileName);
}
} else {
echo "PDF compression failed.";
}
}
);
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 *= 1024;
case 'T': $iValue *= 1024;
case 'G': $iValue *= 1024;
case 'M': $iValue *= 1024;
case 'K': $iValue *= 1024; break;
}
return (int)$iValue;
}
return $f3;
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