From f54036976a486d3f7c83e52fd37ea357fd4e7a62 Mon Sep 17 00:00:00 2001
From: El RIDO <elrido@gmx.net>
Date: Tue, 11 Apr 2017 17:23:26 +0200
Subject: [PATCH] added instantburnafterreading option to address #174

---
 cfg/conf.ini.sample    |  4 ++++
 lib/Configuration.php  |  1 +
 lib/Model/Paste.php    |  5 +++++
 tst/PrivateBinTest.php | 31 +++++++++++++++++++++++++++++++
 tst/README.md          |  2 +-
 5 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/cfg/conf.ini.sample b/cfg/conf.ini.sample
index 0d251c18..d457b890 100644
--- a/cfg/conf.ini.sample
+++ b/cfg/conf.ini.sample
@@ -21,6 +21,10 @@ fileupload = false
 ; preselect the burn-after-reading feature, defaults to false
 burnafterreadingselected = false
 
+; delete a burn after reading paste immediatly after it is first accessed from
+; the server and do not wait for a successful decryption
+instantburnafterreading = false
+
 ; which display mode to preselect by default, defaults to "plaintext"
 ; make sure the value exists in [formatter_options]
 defaultformatter = "plaintext"
diff --git a/lib/Configuration.php b/lib/Configuration.php
index 4130a22e..b6b9f6f4 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -42,6 +42,7 @@ class Configuration
             'password'                 => true,
             'fileupload'               => false,
             'burnafterreadingselected' => false,
+            'instantburnafterreading'  => false,
             'defaultformatter'         => 'plaintext',
             'syntaxhighlightingtheme'  => null,
             'sizelimit'                => 2097152,
diff --git a/lib/Model/Paste.php b/lib/Model/Paste.php
index 8f171fe1..fae808ea 100644
--- a/lib/Model/Paste.php
+++ b/lib/Model/Paste.php
@@ -48,6 +48,11 @@ class Paste extends AbstractModel
             $data->meta->remaining_time = $data->meta->expire_date - time();
         }
 
+        // check if non-expired burn after reading paste needs to be deleted
+        if (property_exists($data->meta, 'burnafterreading') && $data->meta->burnafterreading && $this->_conf->getKey('instantburnafterreading')) {
+            $this->delete();
+        }
+
         // set formatter for for the view.
         if (!property_exists($data->meta, 'formatter')) {
             // support < 0.21 syntax highlighting
diff --git a/tst/PrivateBinTest.php b/tst/PrivateBinTest.php
index a8aad11a..44df563f 100644
--- a/tst/PrivateBinTest.php
+++ b/tst/PrivateBinTest.php
@@ -822,6 +822,37 @@ class PrivateBinTest extends PHPUnit_Framework_TestCase
             $content,
             'outputs data correctly'
         );
+        // by default it will be deleted after encryption by the JS
+        $this->assertTrue($this->_model->exists(Helper::getPasteId()), 'paste exists after reading');
+    }
+
+    /**
+     * @runInSeparateProcess
+     */
+    public function testReadInstantBurn()
+    {
+        $this->reset();
+        $options                                    = parse_ini_file(CONF, true);
+        $options['main']['instantburnafterreading'] = 1;
+        Helper::confBackup();
+        Helper::createIniFile(CONF, $options);
+        $burnPaste = Helper::getPaste(array('burnafterreading' => true));
+        $this->_model->create(Helper::getPasteId(), $burnPaste);
+        $_SERVER['QUERY_STRING'] = Helper::getPasteId();
+        ob_start();
+        new PrivateBin;
+        $content = ob_get_contents();
+        ob_end_clean();
+        unset($burnPaste['meta']['salt']);
+        $this->assertRegExp(
+            '#<div id="cipherdata"[^>]*>' .
+            preg_quote(htmlspecialchars(Helper::getPasteAsJson($burnPaste['meta']), ENT_NOQUOTES)) .
+            '</div>#',
+            $content,
+            'outputs data correctly'
+        );
+        // in this case the changed configuration deletes it instantly
+        $this->assertFalse($this->_model->exists(Helper::getPasteId()), 'paste exists after reading');
     }
 
     /**
diff --git a/tst/README.md b/tst/README.md
index e11bc495..77b03528 100644
--- a/tst/README.md
+++ b/tst/README.md
@@ -10,7 +10,7 @@ and their dependencies:
 
 Example for Debian and Ubuntu:
 ```console
-$ sudo apt install phpunit php-gd php-sqlite php-xdebug
+$ sudo apt install phpunit php-gd php-sqlite3 php-xdebug
 ```
 
 To run the tests, change into the `tst` directory and run phpunit: