From 9bf5b6dbdeb86af0a6faa336ff16d9cddf989324 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 ++++-
 3 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/css/privatebin.css b/css/privatebin.css
index a3ab5ea6..b379f191 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 6ed9325b..c5b93839 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -3508,6 +3508,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $password,
             $passwordInput,
             $rawTextButton,
+	    $downloadTextButton,
             $qrCodeLink,
             $emailLink,
             $sendButton,
@@ -3635,6 +3636,30 @@ jQuery.PrivateBin = (function($, 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
          *
@@ -3859,6 +3884,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $newButton.removeClass('hidden');
             $cloneButton.removeClass('hidden');
             $rawTextButton.removeClass('hidden');
+            $downloadTextButton.removeClass('hidden');
             $qrCodeLink.removeClass('hidden');
 
             viewButtonsDisplayed = true;
@@ -3879,6 +3905,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $cloneButton.addClass('hidden');
             $newButton.addClass('hidden');
             $rawTextButton.addClass('hidden');
+            $downloadTextButton.addClass('hidden');
             $qrCodeLink.addClass('hidden');
             me.hideEmailButton();
 
@@ -4040,6 +4067,17 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $rawTextButton.addClass('hidden');
         };
 
+        /**
+         * only hides the download text button
+         *
+         * @name   TopNav.hideRawButton
+         * @function
+         */
+        me.hideDownloadButton = function()
+        {
+            $downloadTextButton.addClass('hidden');
+        };
+
         /**
          * only hides the qr code button
          * 
@@ -4278,6 +4316,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $password = $('#password');
             $passwordInput = $('#passwordinput');
             $rawTextButton = $('#rawtextbutton');
+            $downloadTextButton = $('#downloadtextbutton');
             $retryButton = $('#retrybutton');
             $sendButton = $('#sendbutton');
             $qrCodeLink = $('#qrcodelink');
@@ -4295,6 +4334,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             $sendButton.click(PasteEncrypter.sendPaste);
             $cloneButton.click(Controller.clonePaste);
             $rawTextButton.click(rawText);
+            $downloadTextButton.click(downloadText);
             $retryButton.click(clickRetryButton);
             $fileRemoveButton.click(removeAttachment);
             $qrCodeLink.click(displayQrCode);
@@ -4631,6 +4671,7 @@ jQuery.PrivateBin = (function($, RawDeflate) {
             TopNav.showEmailButton();
 
             TopNav.hideRawButton();
+	    TopNav.hideDownloadButton();
             Editor.hide();
 
             // parse and show text
diff --git a/tpl/bootstrap.php b/tpl/bootstrap.php
index 87faa556..db44707b 100644
--- a/tpl/bootstrap.php
+++ b/tpl/bootstrap.php
@@ -72,7 +72,7 @@ endif;
 ?>
 		<script type="text/javascript" data-cfasync="false" src="js/purify-2.0.8.js" integrity="sha512-QwcEKGuEmKtMguCO9pqNtUtZqq9b/tJ8gNr5qhY8hykq3zKTlDOvpZAmf6Rs8yH35Bz1ZdctUjj2qEWxT5aXCg==" 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-+4ay2Dw/9w/DOTutdpoiHvF6RxqV0V8ABSXHlebjGbQ7Td+3If7mOZ5OIu/lWCifcgP6vyhJuiB8+jl8FGtuwg==" crossorigin="anonymous"></script>
+		<script type="text/javascript" data-cfasync="false" src="js/privatebin.js?<?php echo rawurlencode($VERSION); ?>" integrity="sha512-uFEL2FsrA5XWPVmKy00j1i6KX6OVBleQTrJ6iGM39I55d2fq9+WA/9EqJ46yj24JWZDV9oJ5wYvnZXcL6zywvg==" crossorigin="anonymous"></script>
 		<link rel="apple-touch-icon" href="img/apple-touch-icon.png?<?php echo rawurlencode($VERSION); ?>" sizes="180x180" />
 		<link rel="icon" type="image/png" href="img/favicon-32x32.png?<?php echo rawurlencode($VERSION); ?>" sizes="32x32" />
 		<link rel="icon" type="image/png" href="img/favicon-16x16.png?<?php echo rawurlencode($VERSION); ?>" sizes="16x16" />
@@ -199,6 +199,9 @@ 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>