From ed663513372385754b37c57f0a7bee41b1c79a08 Mon Sep 17 00:00:00 2001
From: Christian Pierre MOMON <cmomon@april.org>
Date: Wed, 14 Apr 2021 03:11:58 +0200
Subject: [PATCH] Added download feature (#5318).

---
 css/privatebin.css |  4 ++++
 js/privatebin.js   | 41 +++++++++++++++++++++++++++++++++++++++++
 tpl/bootstrap.php  |  5 ++++-
 tpl/page.php       |  2 +-
 4 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/css/privatebin.css b/css/privatebin.css
index 8b4e6a0..f852d39 100644
--- a/css/privatebin.css
+++ b/css/privatebin.css
@@ -249,6 +249,10 @@ button img {
 	padding: 1px 0 1px 0;
 }
 
+#downloadtextbutton img {
+	padding: 1px 0 1px 0;
+}
+
 #remainingtime, #password {
 	color: #94a3b4;
 	display: inline;
diff --git a/js/privatebin.js b/js/privatebin.js
index e549dd6..5090885 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -3525,6 +3525,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $password,
             $passwordInput,
             $rawTextButton,
+	    $downloadTextButton,
             $qrCodeLink,
             $emailLink,
             $sendButton,
@@ -3666,6 +3667,30 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             newDoc.close();
         }
 
+        /**
+         * download text
+         *
+         * @name   TopNav.downloadText
+         * @private
+         * @function
+         */
+        function downloadText()
+        {
+	    var filename='paste.txt';
+	    var text = PasteViewer.getText();
+
+	    var element = document.createElement('a');
+	    element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
+	    element.setAttribute('download', filename);
+
+	    element.style.display = 'none';
+	    document.body.appendChild(element);
+
+	    element.click();
+
+	    document.body.removeChild(element);
+	}
+
         /**
          * saves the language in a cookie and reloads the page
          *
@@ -3892,6 +3917,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $newButton.removeClass('hidden');
             $cloneButton.removeClass('hidden');
             $rawTextButton.removeClass('hidden');
+            $downloadTextButton.removeClass('hidden');
             $qrCodeLink.removeClass('hidden');
 
             viewButtonsDisplayed = true;
@@ -3912,6 +3938,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $cloneButton.addClass('hidden');
             $newButton.addClass('hidden');
             $rawTextButton.addClass('hidden');
+            $downloadTextButton.addClass('hidden');
             $qrCodeLink.addClass('hidden');
             me.hideEmailButton();
 
@@ -4073,6 +4100,17 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $rawTextButton.addClass('hidden');
         };
 
+        /**
+         * only hides the download text button
+         *
+         * @name   TopNav.hideRawButton
+         * @function
+         */
+        me.hideDownloadButton = function()
+        {
+            $downloadTextButton.addClass('hidden');
+        };
+
         /**
          * only hides the qr code button
          *
@@ -4334,6 +4372,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $password = $('#password');
             $passwordInput = $('#passwordinput');
             $rawTextButton = $('#rawtextbutton');
+            $downloadTextButton = $('#downloadtextbutton');
             $retryButton = $('#retrybutton');
             $sendButton = $('#sendbutton');
             $qrCodeLink = $('#qrcodelink');
@@ -4351,6 +4390,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $sendButton.click(PasteEncrypter.sendPaste);
             $cloneButton.click(Controller.clonePaste);
             $rawTextButton.click(rawText);
+            $downloadTextButton.click(downloadText);
             $retryButton.click(clickRetryButton);
             $fileRemoveButton.click(removeAttachment);
             $qrCodeLink.click(displayQrCode);
@@ -4689,6 +4729,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             TopNav.showEmailButton();
 
             TopNav.hideRawButton();
+	    TopNav.hideDownloadButton();
             Editor.hide();
 
             // parse and show text
diff --git a/tpl/bootstrap.php b/tpl/bootstrap.php
index ffea872..c43ddbf 100644
--- a/tpl/bootstrap.php
+++ b/tpl/bootstrap.php
@@ -72,7 +72,7 @@ endif;
 ?>
 		<script type="text/javascript" data-cfasync="false" src="js/purify-2.2.7.js" integrity="sha512-7Ka1I/nJuR2CL8wzIS5PJS4HgEMd0HJ6kfAl6fFhwFBB27rhztFbe0tS+Ex+Qg+5n4nZIT4lty4k4Di3+X9T4A==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
-		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-/7gEqgCgQA9cgLUf5rBj+nfJptVm92LAYxvBN7mmeG+xkq9lQ+eY7DWQY47TGXXA7HqkCwk7424mnBiYZvCAUQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-mouOfFQR5Gn4RQLPg0PJmO/7tSXUrr1ohq+qDHNMXrKCKTZCvY9XcPYhIZjC3Pd6ClZ4eZ57da+EbnFX0m6Byg==" crossorigin="anonymous"></script>
 		<!-- icon -->
 		<link rel="apple-touch-icon" href="<?php echo I18n::encode($BASEPATH); ?>img/apple-touch-icon.png" sizes="180x180" />
 		<link rel="icon" type="image/png" href="img/favicon-32x32.png" sizes="32x32" />
@@ -212,6 +212,9 @@ endif;
 						<button id="rawtextbutton" type="button" class="hidden btn btn-<?php echo $isDark ? 'warning' : 'default'; ?> navbar-btn">
 							<span class="glyphicon glyphicon-text-background" aria-hidden="true"></span> <?php echo I18n::_('Raw text'), PHP_EOL; ?>
 						</button>
+						<button id="downloadtextbutton" type="button" class="hidden btn btn-<?php echo $isDark ? 'warning' : 'default'; ?> navbar-btn">
+							<span class="glyphicon glyphicon glyphicon-download-alt" aria-hidden="true"></span> Download
+						</button>
 						<button id="emaillink" type="button" class="hidden btn btn-<?php echo $isDark ? 'warning' : 'default'; ?> navbar-btn">
 							<span class="glyphicon glyphicon-envelope" aria-hidden="true"></span> <?php echo I18n::_('Email'), PHP_EOL; ?>
 						</button>
diff --git a/tpl/page.php b/tpl/page.php
index e58617d..096a9e6 100644
--- a/tpl/page.php
+++ b/tpl/page.php
@@ -50,7 +50,7 @@ endif;
 ?>
 		<script type="text/javascript" data-cfasync="false" src="js/purify-2.2.7.js" integrity="sha512-7Ka1I/nJuR2CL8wzIS5PJS4HgEMd0HJ6kfAl6fFhwFBB27rhztFbe0tS+Ex+Qg+5n4nZIT4lty4k4Di3+X9T4A==" crossorigin="anonymous"></script>
 		<script type="text/javascript" data-cfasync="false" src="js/legacy.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==" crossorigin="anonymous"></script>
-		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-/7gEqgCgQA9cgLUf5rBj+nfJptVm92LAYxvBN7mmeG+xkq9lQ+eY7DWQY47TGXXA7HqkCwk7424mnBiYZvCAUQ==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-mouOfFQR5Gn4RQLPg0PJmO/7tSXUrr1ohq+qDHNMXrKCKTZCvY9XcPYhIZjC3Pd6ClZ4eZ57da+EbnFX0m6Byg==" crossorigin="anonymous"></script>
 		<!-- icon -->
 		<link rel="apple-touch-icon" href="img/apple-touch-icon.png?<?php echo rawurlencode($VERSION); ?>" sizes="180x180" />
 		<link rel="icon" type="image/png" href="img/favicon-32x32.png?<?php echo rawurlencode($VERSION); ?>" sizes="32x32" />