[polari] utils: Add keyring helper methods

[Florian Müllner <fmuellner src gnome org>]

commit b3d7f447d321530b19f0d6b4c91e533fddd853ba
Author: Florian Müllner <fmuellner gnome org>
Date:   Tue Feb 2 08:32:34 2016 +0100

    utils: Add keyring helper methods
    
    We will soon start to support server passwords, which should be stored
    in the user's keyring, so add appropriate helper methods.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=709824

 src/utils.js |   38 ++++++++++++++++++++++++++++++++++++++
 1 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/src/utils.js b/src/utils.js
index 3961b01..e9643b8 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -25,11 +25,17 @@ const Gio = imports.gi.Gio;
 const GLib = imports.gi.GLib;
 const Gtk = imports.gi.Gtk;
 const Soup = imports.gi.Soup;
+const Secret = imports.gi.Secret;
 const Tp = imports.gi.TelepathyGLib;
 
 const AppNotifications = imports.appNotifications;
 const Signals = imports.signals;
 
+const SECRET_SCHEMA = new Secret.Schema(
+    'org.gnome.Polari.Account', Secret.SchemaFlags.NONE,
+    { 'account-id': Secret.SchemaAttributeType.STRING }
+);
+
 const GPASTE_BASEURL = 'https://paste.gnome.org/'
 
 // http://daringfireball.net/2010/07/improved_regex_for_matching_urls
@@ -109,6 +115,38 @@ function getTpEventTime() {
     return Tp.user_action_time_from_x11 (time);
 }
 
+function storeAccountPassword(account, password, callback) {
+    let attr = { 'account-id': account.get_path_suffix() };
+    let label = _("Polari server password for %s").format(account.display_name);
+    Secret.password_store(SECRET_SCHEMA, attr, Secret.COLLECTION_DEFAULT,
+                          label, password, null,
+        function(o, res) {
+            try {
+                let success = Secret.password_store_finish(res);
+                callback(success);
+            } catch(e) {
+                log('Failed to store password for account "%s": %s'.format(
+                    account.display_name, e.message));
+                callback(false);
+            }
+        });
+}
+
+function lookupAccountPassword(account, callback) {
+    let attr = { 'account-id': account.get_path_suffix() };
+    Secret.password_lookup(SECRET_SCHEMA, attr, null,
+        function(o, res) {
+            try {
+                let password = Secret.password_lookup_finish(res);
+                callback(password);
+            } catch(e) {
+                log('Failed to lookup password for account "%s": %s'.format(
+                    account.display_name, e.message));
+                callback(null);
+            }
+        });
+}
+
 // findUrls:
 // @str: string to find URLs in
 //