Basic CryptDrive export with pads

www/common/sframe-common-outer.js

@@ -744,6 +744,15 @@ define([
                 Cryptpad.removeLoginBlock(data, cb);
             });
 
+            sframeChan.on('Q_CRYPTGET', function (data, cb) {
+                Cryptget.get(data.hash, function (err, val) {
+                    cb({
+                        error: err,
+                        data: val
+                    });
+                }, data.opts);
+            });
+
             if (cfg.addRpc) {
                 cfg.addRpc(sframeChan, Cryptpad, Utils);
             }

www/common/sframe-protocol.js

@@ -270,5 +270,9 @@ define({
     'Q_IS_PAD_STORED': true,
 
     // Import mediatag from a pad
-    'Q_IMPORT_MEDIATAG': true
+    'Q_IMPORT_MEDIATAG': true,
+
+    // Ability to get a pad's content from its hash
+    'Q_CRYPTGET': true,
+
 });

www/common/translations/messages.js

@@ -562,6 +562,8 @@ define(function () {
     out.settings_backupCategory = "Backup";
     out.settings_backupHint = "Backup or restore all your CryptDrive's content. It won't contain the content of your pads, just the link to access them.";
     out.settings_backup = "Backup";
+    out.settings_backupHint2 = "Download all your pads. Pads will be downloaded in an readable format when available.";
+    out.settings_backup2 = "Download my CryptDrive";
     out.settings_restore = "Restore";
 
     out.settings_resetNewTitle = "Clean CryptDrive";