[gnome-initial-setup: 2/2] Prepopulate account page from online accounts

[Matthias Clasen <matthiasc src gnome org>]

commit 214eb1170992495e70f892166826905c383760ac
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Dec 14 00:13:40 2013 -0500

    Prepopulate account page from online accounts
    
    Take the name and the avatar picture from an online account,
    and suggest them on the account page. For now, we only know
    how to get this data from Google, and we need a patch for
    gnome-online-accounts in bug 720446. This code should probably
    be replaced by more advanced code that can get profile data
    from other providers as well, together with the new avatar chooser.

 configure.ac                                       |    2 +
 .../pages/account/gis-account-page-local.c         |  146 +++++++++++++++++++-
 .../pages/account/gis-account-page-local.ui        |    4 +-
 3 files changed, 146 insertions(+), 6 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4671b4d..aa37f4c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -40,6 +40,8 @@ PKG_CHECK_MODULES(INITIAL_SETUP,
                   gio-unix-2.0 >= $GLIB_REQUIRED_VERSION
                   gdm >= $GDM_REQUIRED_VERSION
                   pango >= $PANGO_REQUIRED_VERSION
+                  rest-0.7
+                  json-glib-1.0
                   pwquality)
 
 PKG_CHECK_MODULES(COPY_WORKER, gio-2.0)
diff --git a/gnome-initial-setup/pages/account/gis-account-page-local.c 
b/gnome-initial-setup/pages/account/gis-account-page-local.c
index 62748ba..74aae71 100644
--- a/gnome-initial-setup/pages/account/gis-account-page-local.c
+++ b/gnome-initial-setup/pages/account/gis-account-page-local.c
@@ -34,8 +34,17 @@
 #include <act/act-user-manager.h>
 #include "um-utils.h"
 
+#define GOA_API_IS_SUBJECT_TO_CHANGE
+#include <goa/goa.h>
+
+#include <rest/oauth-proxy.h>
+#include <json-glib/json-glib.h>
+
+
 struct _GisAccountPageLocalPrivate
 {
+  GtkWidget *avatar_image;
+  GtkWidget *subtitle;
   GtkWidget *fullname_entry;
   GtkWidget *username_combo;
 
@@ -65,9 +74,87 @@ validation_changed (GisAccountPageLocal *page)
 }
 
 static void
-clear_account_page (GisAccountPageLocal *page)
+get_profile_sync (const gchar        *access_token,
+                  gchar             **out_name,
+                  gchar             **out_picture,
+                  GCancellable       *cancellable,
+                  GError            **error)
+{
+  GError *identity_error;
+  RestProxy *proxy;
+  RestProxyCall *call;
+  JsonParser *parser;
+  JsonObject *json_object;
+  gchar *ret;
+
+  ret = NULL;
+
+  identity_error = NULL;
+  proxy = NULL;
+  call = NULL;
+  parser = NULL;
+
+  /* TODO: cancellable */
+
+  proxy = rest_proxy_new ("https://www.googleapis.com/oauth2/v2/userinfo";, FALSE);
+  call = rest_proxy_new_call (proxy);
+  rest_proxy_call_set_method (call, "GET");
+  rest_proxy_call_add_param (call, "access_token", access_token);
+
+  if (!rest_proxy_call_sync (call, error))
+    goto out;
+  if (rest_proxy_call_get_status_code (call) != 200)
+    {
+      g_set_error (error,
+                   GOA_ERROR,
+                   GOA_ERROR_FAILED,
+                   "Expected status 200 when requesting your identity, instead got status %d (%s)",
+                   rest_proxy_call_get_status_code (call),
+                   rest_proxy_call_get_status_message (call));
+      goto out;
+    }
+
+  parser = json_parser_new ();
+  if (!json_parser_load_from_data (parser,
+                                   rest_proxy_call_get_payload (call),
+                                   rest_proxy_call_get_payload_length (call),
+                                   &identity_error))
+    {
+      g_warning ("json_parser_load_from_data() failed: %s (%s, %d)",
+                   identity_error->message,
+                   g_quark_to_string (identity_error->domain),
+                   identity_error->code);
+      g_set_error (error,
+                   GOA_ERROR,
+                   GOA_ERROR_FAILED,
+                   "Could not parse response");
+      goto out;
+    }
+
+  json_object = json_node_get_object (json_parser_get_root (parser));
+  if (out_name != NULL)
+    *out_name = g_strdup (json_object_get_string_member (json_object, "name"));
+
+  if (out_picture != NULL)
+    *out_picture = g_strdup (json_object_get_string_member (json_object, "picture"));
+
+ out:
+  g_clear_error (&identity_error);
+  if (call != NULL)
+    g_object_unref (call);
+  if (proxy != NULL)
+    g_object_unref (proxy);
+}
+
+static void
+prepopulate_account_page (GisAccountPageLocal *page)
 {
   GisAccountPageLocalPrivate *priv = gis_account_page_local_get_instance_private (page);
+  GoaClient *client;
+  GError *error = NULL;
+  gchar *name = NULL;
+  gchar *picture = NULL;
+  GdkPixbuf *pixbuf = NULL;
 
   priv->valid_name = FALSE;
   priv->valid_username = FALSE;
@@ -75,8 +162,57 @@ clear_account_page (GisAccountPageLocal *page)
   /* FIXME: change this for a large deployment scenario; maybe through a GSetting? */
   priv->account_type = ACT_USER_ACCOUNT_TYPE_ADMINISTRATOR;
 
-  gtk_entry_set_text (GTK_ENTRY (priv->fullname_entry), "");
-  gtk_list_store_clear (GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (priv->username_combo))));
+  client = goa_client_new_sync (NULL, &error);
+  if (client) {
+    GList *accounts, *l;
+    accounts = goa_client_get_accounts (client);
+    for (l = accounts; l != NULL; l = l->next) {
+      GoaOAuth2Based *oa2;
+      oa2 = goa_object_get_oauth2_based (GOA_OBJECT (l->data));
+      if (oa2) {
+        gchar *token;
+        goa_oauth2_based_call_get_access_token_sync (oa2, &token, NULL, NULL, NULL);
+        get_profile_sync (token, &name, &picture, NULL, NULL);
+        /* FIXME: collect information from more than one account
+         * and present at least the pictures in the avatar chooser
+         */
+        break;
+      }
+    }
+    g_list_free_full (accounts, (GDestroyNotify) g_object_unref);
+    g_object_unref (client);
+  }
+
+  if (name) {
+    gtk_label_set_text (GTK_LABEL (priv->subtitle), _("Are these the right details ? You can change them if 
you want."));
+    gtk_entry_set_text (GTK_ENTRY (priv->fullname_entry), name);
+  }
+  else {
+    gtk_label_set_text (GTK_LABEL (priv->subtitle), _("We need a few details to complete setup."));
+    gtk_entry_set_text (GTK_ENTRY (priv->fullname_entry), "");
+    gtk_list_store_clear (GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (priv->username_combo))));
+  }
+
+  if (picture) {
+    GFile *file;
+    GInputStream *stream;
+    file = g_file_new_for_uri (picture);
+    stream = G_INPUT_STREAM (g_file_read (file, NULL, NULL));
+    pixbuf = gdk_pixbuf_new_from_stream_at_scale (stream, -1, 96, TRUE, NULL, NULL);
+    g_object_unref (stream);
+    g_object_unref (file);
+  }
+
+  if (pixbuf) {
+    gtk_image_set_from_pixbuf (GTK_IMAGE (priv->avatar_image), pixbuf);
+  }
+  else {
+    gtk_image_set_pixel_size (GTK_IMAGE (priv->avatar_image), 96);
+    gtk_image_set_from_icon_name (GTK_IMAGE (priv->avatar_image), "avatar-default-symbolic", 1);
+  }
+
+  g_free (name);
+  g_free (picture);
 }
 
 static void
@@ -151,7 +287,7 @@ gis_account_page_local_constructed (GObject *object)
   g_signal_connect (priv->username_combo, "changed",
                     G_CALLBACK (username_changed), page);
 
-  clear_account_page (page);
+  prepopulate_account_page (page);
 }
 
 static void
@@ -185,6 +321,8 @@ gis_account_page_local_class_init (GisAccountPageLocalClass *klass)
 
   gtk_widget_class_set_template_from_resource (GTK_WIDGET_CLASS (klass), 
"/org/gnome/initial-setup/gis-account-page-local.ui");
 
+  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPageLocal, avatar_image);
+  gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPageLocal, subtitle);
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPageLocal, 
fullname_entry);
   gtk_widget_class_bind_template_child_private (GTK_WIDGET_CLASS (klass), GisAccountPageLocal, 
username_combo);
 
diff --git a/gnome-initial-setup/pages/account/gis-account-page-local.ui 
b/gnome-initial-setup/pages/account/gis-account-page-local.ui
index 3dd740a..4eeaa46 100644
--- a/gnome-initial-setup/pages/account/gis-account-page-local.ui
+++ b/gnome-initial-setup/pages/account/gis-account-page-local.ui
@@ -10,12 +10,12 @@
         <property name="valign">fill</property>
         <property name="orientation">vertical</property>
         <child>
-          <object class="GtkButton" id="avatar-button">
+          <object class="GtkButton" id="avatar_button">
             <property name="visible">True</property>
             <property name="margin_top">54</property>
             <property name="halign">center</property>
             <child>
-              <object class="GtkImage" id="avatar-image">
+              <object class="GtkImage" id="avatar_image">
                 <property name="visible">True</property>
                 <property name="can_focus">False</property>
                 <property name="pixel_size">96</property>