Display the prefilled password page when receiving a password-protected pad

www/common/common-ui-elements.js

@@ -3463,19 +3463,24 @@ define([
         (cb || function () {})();
     };
 
-    UIElements.displayPasswordPrompt = function (common, isError) {
+    UIElements.displayPasswordPrompt = function (common, cfg, isError) {
         var error;
         if (isError) { error = setHTML(h('p.cp-password-error'), Messages.password_error); }
         var info = h('p.cp-password-info', Messages.password_info);
         var password = UI.passwordInput({placeholder: Messages.password_placeholder});
         var button = h('button', Messages.password_submit);
+        cfg = cfg || {};
+
+        if (cfg.value && !isError) {
+            $(password).find('.cp-password-input').val(cfg.value);
+        }
 
         var submit = function () {
             var value = $(password).find('.cp-password-input').val();
             UI.addLoadingScreen();
             common.getSframeChannel().query('Q_PAD_PASSWORD_VALUE', value, function (err, data) {
                 if (!data) {
-                    UIElements.displayPasswordPrompt(common, true);
+                    UIElements.displayPasswordPrompt(common, cfg, true);
                 }
             });
         };

www/common/sframe-common-outer.js

@@ -206,7 +206,7 @@ define([
                 //        2c: 'view' pad and '/p/' and a wrong password stored --> the seed is incorrect
                 //        2d: 'view' pad and '/p/' and password never stored (security feature) --> password-prompt
 
-                var askPassword = function (wrongPasswordStored) {
+                var askPassword = function (wrongPasswordStored, cfg) {
                     // Ask for the password and check if the pad exists
                     // If the pad doesn't exist, it means the password isn't correct
                     // or the pad has been deleted
@@ -250,11 +250,14 @@ define([
                         // Not a file, so we can use `isNewChannel`
                         Cryptpad.isNewChannel(window.location.href, password, next);
                     });
-                    sframeChan.event("EV_PAD_PASSWORD");
+                    sframeChan.event("EV_PAD_PASSWORD", cfg);
                 };
 
                 var done = waitFor();
                 var stored = false;
+                var passwordCfg = {
+                    value: ''
+                };
                 nThen(function (w) {
                     Cryptpad.getPadAttribute('title', w(function (err, data) {
                         stored = (!err && typeof (data) === "string");
@@ -264,7 +267,7 @@ define([
                     }), parsed.getUrl());
                 }).nThen(function (w) {
                     if (!password && !stored && sessionStorage.newPadPassword) {
-                        password = sessionStorage.newPadPassword;
+                        passwordCfg.value = sessionStorage.newPadPassword;
                         delete sessionStorage.newPadPassword;
                     }
 
@@ -274,7 +277,7 @@ define([
                         Cryptpad.getFileSize(window.location.href, password, w(function (e, size) {
                             if (size !== 0) { return void todo(); }
                             // Wrong password or deleted file?
-                            askPassword(true);
+                            askPassword(true, passwordCfg);
                         }));
                         return;
                     }
@@ -293,7 +296,7 @@ define([
                             return void todo();
                         }
                         // Wrong password or deleted file?
-                        askPassword(true);
+                        askPassword(true, passwordCfg);
                     }));
                 }).nThen(done);
             }

www/common/sframe-common.js

@@ -595,8 +595,8 @@ define([
 
             UI.addTooltips();
 
-            ctx.sframeChan.on("EV_PAD_PASSWORD", function () {
+            ctx.sframeChan.on("EV_PAD_PASSWORD", function (cfg) {
-                UIElements.displayPasswordPrompt(funcs);
+                UIElements.displayPasswordPrompt(funcs, cfg);
             });
 
             ctx.sframeChan.on("EV_PAD_PASSWORD_ERROR", function () {