From aa951558fb9ab11aa6619643a7b8254ce61b1a2e Mon Sep 17 00:00:00 2001
From: tale-fau <lefaucheurtanguy@gmail.com>
Date: Thu, 2 Nov 2023 17:35:10 +0100
Subject: [PATCH] Ajout de fonctionnalite de chiffrage dechiffrage

---
 app.php | 40 +++++++++++++++++++++++++++++++++++-----
 1 file changed, 35 insertions(+), 5 deletions(-)

diff --git a/app.php b/app.php
index 7a233c7..0066092 100644
--- a/app.php
+++ b/app.php
@@ -181,7 +181,6 @@ $f3->route('POST /sign',
 
         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')) {
@@ -209,7 +208,6 @@ $f3->route('POST /share',
         $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);
@@ -233,15 +231,23 @@ $f3->route('POST /share',
         if(!count($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"));
         }
-
+        $key = "test";
+        foreach (glob("/tmp/".$hash.'/*.pdf') as $file) {
+            $outputFile = $file.".gpg";
+            $command = "echo '$key' | gpg --batch --passphrase-fd 0 --symmetric --cipher-algo AES256 -o $outputFile $file";
+            $result = shell_exec($command);
+            if ($result === false) {
+                echo "Cypher failure.";
+                exit;
+            }
+            unlink($file);
+        }
         $f3->reroute($f3->get('REVERSE_PROXY_URL').'/signature/'.$hash."#informations");
     }
 
@@ -252,6 +258,19 @@ $f3->route('GET /signature/@hash/pdf',
         $f3->set('activeTab', 'sign');
         $hash = Web::instance()->slug($f3->get('PARAMS.hash'));
         $sharingFolder = $f3->get('PDF_STORAGE_PATH').$hash;
+
+        $key = "test";
+        foreach (glob("/tmp/".$hash.'/*.gpg') as $file) {
+            $outputFile = str_replace(".gpg", "", $file);
+            $command = "echo '$key' | gpg --batch --passphrase-fd 0 --decrypt -o $outputFile $file";
+            $result = shell_exec($command);
+            if ($result === false) {
+                echo "Decypher failure.";
+                exit;
+            }
+            unlink($file);
+        }
+
         $files = scandir($sharingFolder);
         $originalFile = $sharingFolder.'/original.pdf';
         $finalFile = $sharingFolder.'/'.$f3->get('PARAMS.hash').uniqid().'.pdf';
@@ -277,6 +296,17 @@ $f3->route('GET /signature/@hash/pdf',
         }
         Web::instance()->send($finalFile, null, 0, TRUE, $filename);
 
+        foreach (glob("/tmp/".$hash.'/*.pdf') as $file) {
+            $outputFile = $file.".gpg";
+            $command = "echo '$key' | gpg --batch --passphrase-fd 0 --symmetric --cipher-algo AES256 -o $outputFile $file";
+            $result = shell_exec($command);
+            if ($result === false) {
+                echo "Cypher failure.";
+                exit;
+            }
+            unlink($file);
+        }
+
         if($f3->get('DEBUG')) {
             return;
         }