From 9795ac32cbb579605207feee5e738c41830aafa9 Mon Sep 17 00:00:00 2001
From: yflory <yann.flory@xwiki.com>
Date: Thu, 23 Nov 2017 14:36:42 +0100
Subject: [PATCH] Ability to burn an anonymous drive from the browser

---
 customize.dist/translations/messages.fr.js |  3 +++
 customize.dist/translations/messages.js    |  3 +++
 www/common/sframe-protocol.js              |  3 +++
 www/drive/inner.js                         | 25 ++++++++++++++++++----
 www/drive/main.js                          | 11 +++++++++-
 5 files changed, 40 insertions(+), 5 deletions(-)

diff --git a/customize.dist/translations/messages.fr.js b/customize.dist/translations/messages.fr.js
index 2d01fd007..4565af03f 100644
--- a/customize.dist/translations/messages.fr.js
+++ b/customize.dist/translations/messages.fr.js
@@ -395,6 +395,9 @@ define(function () {
     out.fm_viewGridButton = "Grille";
     out.fm_renamedPad = "Vous avez renommé ce pad dans votre Drive. Son titre est:<br><b>{0}</b>";
     out.fm_prop_tagsList = "Mots-clés";
+    out.fm_burnThisDriveButton = "Effacer toutes les informations stockées par CryptPad dans votre navigateur";
+    out.fm_burnThisDrive = "Êtes-vous sûr de vouloir supprimmer tout ce qui est stocké par CryptPad dans votre navigateur ?<br>" +
+                           "Cette action supprimera votre CryptDrive et son historique de votre navigateur, mais les pads existeront toujours (de manière chiffrée) sur notre serveur.";
     // File - Context menu
     out.fc_newfolder = "Nouveau dossier";
     out.fc_rename = "Renommer";
diff --git a/customize.dist/translations/messages.js b/customize.dist/translations/messages.js
index b70635d48..e19be756c 100644
--- a/customize.dist/translations/messages.js
+++ b/customize.dist/translations/messages.js
@@ -397,6 +397,9 @@ define(function () {
     out.fm_viewGridButton = "Grid view";
     out.fm_renamedPad = "You've set a custom name for this pad. Its shared title is:<br><b>{0}</b>";
     out.fm_prop_tagsList = "Tags";
+    out.fm_burnThisDriveButton = "Erase all information stored by CryptPad in your browser";
+    out.fm_burnThisDrive = "Are you sure you want to remove everything stored by CryptPad in your browser?<br>" +
+                           "This will remove your CryptDrive and its history from your browser, but your pads will still exist (encrypted) on our server.";
     // File - Context menu
     out.fc_newfolder = "New folder";
     out.fc_rename = "Rename";
diff --git a/www/common/sframe-protocol.js b/www/common/sframe-protocol.js
index 3f4e56b19..b63e516bc 100644
--- a/www/common/sframe-protocol.js
+++ b/www/common/sframe-protocol.js
@@ -194,4 +194,7 @@ define({
 
     // Store the language selected in the iframe into localStorage outside
     'Q_LANGUAGE_SET': true,
+
+    // Anonymous users can empty their drive and remove FS_hash from localStorage
+    'EV_BURN_ANON_DRIVE': true,
 });
diff --git a/www/drive/inner.js b/www/drive/inner.js
index cd3f2d316..38e7dcb77 100644
--- a/www/drive/inner.js
+++ b/www/drive/inner.js
@@ -1826,6 +1826,9 @@ define([
                 .appendTo($toolbar);
             var $hist = common.createButton('history', true, {histConfig: APP.histConfig});
             $rightside.append($hist);
+            if (APP.$burnThisDrive) {
+                $rightside.append(APP.$burnThisDrive);
+            }
             return $toolbar;
         };
 
@@ -2989,10 +2992,12 @@ define([
                 APP.$displayName = APP.$bar.find('.' + Toolbar.constants.username);
 
                 /* add the usage */
-                common.createUsageBar(function (err, $limitContainer) {
-                    if (err) { return void logError(err); }
-                    APP.$limit = $limitContainer;
-                }, true);
+                if (APP.loggedIn) {
+                    common.createUsageBar(function (err, $limitContainer) {
+                        if (err) { return void logError(err); }
+                        APP.$limit = $limitContainer;
+                    }, true);
+                }
 
                 /* add a history button */
                 APP.histConfig = {
@@ -3009,6 +3014,18 @@ define([
                     $toolbar: APP.$bar,
                 };
 
+                // Add a "Burn this drive" button
+                if (!APP.loggedIn) {
+                    APP.$burnThisDrive = common.createButton(null, true).click(function () {
+                        UI.confirm(Messages.fm_burnThisDrive, function (yes) {
+                            if (!yes) { return; }
+                            common.getSframeChannel().event('EV_BURN_ANON_DRIVE');
+                        }, null, true);
+                    }).attr('title', Messages.fm_burnThisDriveButton)
+                      .removeClass('fa-question')
+                      .addClass('fa-ban');
+                }
+
                 metadataMgr.onChange(function () {
                     var name = metadataMgr.getUserData().name || Messages.anonymous;
                     APP.$displayName.text(name);
diff --git a/www/drive/main.js b/www/drive/main.js
index 438290f34..1e3ff3589 100644
--- a/www/drive/main.js
+++ b/www/drive/main.js
@@ -43,11 +43,20 @@ define([
                         Utils.LocalStore.getFSHash();
             return Utils.Hash.getSecrets('drive', hash);
         };
+        var addRpc = function (sframeChan, Cryptpad, Utils) {
+            sframeChan.on('EV_BURN_ANON_DRIVE', function () {
+                if (Utils.LocalStore.isLoggedIn()) { return; }
+                Utils.LocalStore.setFSHash('');
+                Utils.LocalStore.clearThumbnail();
+                window.location.reload();
+            });
+        };
         Netflux.connect(NetConfig.getWebsocketURL()).then(function (network) {
             SFCommonO.start({
                 getSecrets: getSecrets,
                 newNetwork: network,
-                noHash: true
+                noHash: true,
+                addRpc: addRpc
             });
         }, function (err) { console.error(err); });
     });