24eme/signaturepdf
24eme/signaturepdf
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signaturepdf/app.php

380 lines
12 KiB
PHP
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<?php
$f3 = require(__DIR__.'/vendor/fatfree/base.php');
if(getenv("DEBUG")) {
$f3->set('DEBUG', getenv("DEBUG"));
}
$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()."/");
$f3->config(__DIR__.'/config/config.ini');
if($f3->get('PDF_STORAGE_PATH') && !preg_match('|/$|', $f3->get('PDF_STORAGE_PATH'))) {
$f3->set('PDF_STORAGE_PATH', $f3->get('PDF_STORAGE_PATH').'/');
}
if($f3->get('PDF_DEMO_LINK') === null || $f3->get('PDF_DEMO_LINK') === true) {
$f3->set('PDF_DEMO_LINK', 'https://raw.githubusercontent.com/24eme/signaturepdf/master/tests/files/document.pdf');
}
$f3->set('disableOrganization', false);
if($f3->get('DISABLE_ORGANIZATION')) {
$f3->set('disableOrganization', $f3->get('DISABLE_ORGANIZATION'));
}
$f3->route('GET /',
function($f3) {
$f3->reroute('/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);
}
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);
}
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"));
}
$f3->reroute('/signature/'.$hash."#informations");
}
);
$f3->route('GET /signature/@hash/pdf',
function($f3) {
$hash = Web::instance()->slug($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)));
}
$f3->reroute('/signature/'.$f3->get('PARAMS.hash')."#signed");
}
);
$f3->route('GET /signature/@hash/nblayers',
function($f3) {
$hash = Web::instance()->slug($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('maxSize', min(array(convertPHPSizeToBytes(ini_get('post_max_size')), convertPHPSizeToBytes(ini_get('upload_max_filesize')))));
echo View::instance()->render('organization.html.php');
}
);
$f3->route('POST /organize',
function($f3) {
$filenames = array();
$tmpfile = tempnam($f3->get('UPLOADS'), 'pdfsignature_organize');
unlink($tmpfile);
$pages = explode(',', preg_replace('/[^A-Z0-9a-z,]+/', '', $f3->get('POST.pages')));
$files = Web::instance()->receive(function($file,$formFieldName){
if(strpos(Web::instance()->mime($file['tmp_name'], true), 'application/pdf') !== 0) {
$f3->error(403);
}
return true;
}, false, function($fileBaseName, $formFieldName) use ($tmpfile, &$filenames) {
$filenames[] = str_replace('.pdf', '', $fileBaseName);
return basename($tmpfile).uniqid().".pdf";
});
if(!count($files)) {
$f3->error(403);
}
$pdfs = array();
foreach(array_keys($files) as $i => $file) {
$pdfs[] = chr(65 + $i)."=".$file;
}
shell_exec(sprintf("pdftk %s cat %s output %s", implode(" ", $pdfs), implode(" ", $pages), $tmpfile.'_final.pdf'));
Web::instance()->send($tmpfile."_final.pdf", null, 0, TRUE, implode('_', $filenames));
if($f3->get('DEBUG')) {
return;
}
array_map('unlink', glob($tmpfile."*"));
}
);
}
$f3->route('GET /metadata',
function($f3) {
echo View::instance()->render('metadata.html.php');
}
);
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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