re-encrypt the mailbox field when changing a pad password

www/common/cryptpad-common.js

@@ -779,7 +779,7 @@ define([
         });
     };
 
-    common.changePadPassword = function (Crypt, href, newPassword, edPublic, cb) {
+    common.changePadPassword = function (Crypt, Crypto, href, newPassword, edPublic, cb) {
         if (!href) { return void cb({ error: 'EINVAL_HREF' }); }
         var parsed = Hash.parsePadUrl(href);
         if (!parsed.hash) { return void cb({ error: 'EINVAL_HREF' }); }
@@ -787,6 +787,8 @@ define([
         var warning = false;
         var newHash, newRoHref;
         var oldChannel;
+        var oldSecret;
+        var oldMetadata;
         var newSecret;
 
         if (parsed.hashData.version >= 2) {
@@ -803,27 +805,61 @@ define([
 
         var optsGet = {};
         var optsPut = {
-            password: newPassword
+            password: newPassword,
+            metadata: {}
         };
+
+
         Nthen(function (waitFor) {
             if (parsed.hashData && parsed.hashData.password) {
                 common.getPadAttribute('password', waitFor(function (err, password) {
                     optsGet.password = password;
                 }), href);
             }
-            common.getPadAttribute('owners', waitFor(function (err, owners) {
+        }).nThen(function (waitFor) {
+            oldSecret = Hash.getSecrets(parsed.type, parsed.hash, optsGet.password);
+            oldChannel = oldSecret.channel;
+            common.getPadMetadata({channel: oldChannel}, waitFor(function (metadata) {
+                oldMetadata = metadata;
+            }));
+        }).nThen(function (waitFor) {
+            // Get owners, mailbox and expiration time
+
+            var owners = oldMetadata.owners;
             if (!Array.isArray(owners) || owners.indexOf(edPublic) === -1) {
                 // We're not an owner, we shouldn't be able to change the password!
                 waitFor.abort();
                 return void cb({ error: 'EPERM' });
             }
-                optsPut.owners = owners;
-            }), href);
-            // XXX get the mailbox fields, decrypt all the mailboxes, reencrypt them, and put them in the metadata
-            // XXX also use optsPut.metadata (and fix it in cryptget) instead of optsPut.owners
-            common.getPadAttribute('expire', waitFor(function (err, expire) {
-                optsPut.expire = (expire - (+new Date())) / 1000; // Lifetime in seconds
-            }), href);
+            optsPut.metadata.owners = owners;
+
+            var mailbox = oldMetadata.mailbox;
+            if (mailbox) {
+                // Create the encryptors to be able to decrypt and re-encrypt the mailboxes
+                var oldCrypto = Crypto.createEncryptor(oldSecret.keys);
+                var newCrypto = Crypto.createEncryptor(newSecret.keys);
+
+                var m;
+                if (typeof(mailbox) === "string") {
+                    try {
+                        m = newCrypto.encrypt(oldCrypto.decrypt(mailbox, true, true));
+                    } catch (e) {}
+                } else if (mailbox && typeof(mailbox) == "object") {
+                    m = {};
+                    Object.keys(mailbox).forEach(function (ed) {
+                        console.log(mailbox[ed]);
+                        try {
+                            m[ed] = newCrypto.encrypt(oldCrypto.decrypt(mailbox[ed], true, true));
+                        } catch (e) {
+                            console.error(e);
+                        }
+                    });
+                }
+                optsPut.metadata.mailbox = m;
+            }
+
+            var expire = oldMetadata.expire;
+            optsPut.metadata.expire = (expire - (+new Date())) / 1000; // Lifetime in seconds
         }).nThen(function (waitFor) {
             Crypt.get(parsed.hash, waitFor(function (err, val) {
                 if (err) {
@@ -838,8 +874,6 @@ define([
                 }), optsPut);
             }), optsGet);
         }).nThen(function (waitFor) {
-            var secret = Hash.getSecrets(parsed.type, parsed.hash, optsGet.password);
-            oldChannel = secret.channel;
             pad.leavePad({
                 channel: oldChannel
             }, waitFor());

www/common/outer/mailbox.js

@@ -77,7 +77,12 @@ proxy.mailboxes = {
     };
 
     // Send a message to someone else
-    var sendTo = Mailbox.sendTo = function (ctx, type, msg, user, cb) {
+    var sendTo = Mailbox.sendTo = function (ctx, type, msg, user, _cb) {
+        var cb = _cb || function (obj) {
+            if (obj && obj.error) {
+                console.error(obj.error);
+            }
+        };
         if (!Crypto.Mailbox) {
             return void cb({error: "chainpad-crypto is outdated and doesn't support mailboxes."});
         }

www/common/sframe-common-outer.js

@@ -911,7 +911,7 @@ define([
 
             sframeChan.on('Q_PAD_PASSWORD_CHANGE', function (data, cb) {
                 var href = data.href || window.location.href;
-                Cryptpad.changePadPassword(Cryptget, href, data.password, edPublic, cb);
+                Cryptpad.changePadPassword(Cryptget, Crypto, href, data.password, edPublic, cb);
             });
 
             sframeChan.on('Q_CHANGE_USER_PASSWORD', function (data, cb) {
@@ -1020,7 +1020,7 @@ define([
                     // Try to get the owner's mailbox from the pad metadata first.
                     // If it's is an older owned pad, check if the owner is a friend
                     // or an acquaintance (from async-store directly in requestAccess)
-                    Cryptpad.pad.getPadMetadata({
+                    Cryptpad.padRpc.getPadMetadata({
                         channel: secret.channel
                     }, waitFor(function (obj) {
                         obj = obj || {};