[gnome-online-accounts] examples: Introspect the providers

[Debarshi Ray <debarshir src gnome org>]

commit f7f6576f39d36f988c138c778fb86f5f9bcaf095
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Jul 14 18:59:13 2016 +0200

    examples: Introspect the providers
    
    This is useful for getting an idea of the providers and services
    available. It can be used by configuration and deployment tools like
    Fleet Commander [1] that want to create pre-configured account
    skeletons representing certain aspects of an account but leave out
    details like the identity and presentation-identity.
    
    [1] https://github.com/fleet-commander
    
    https://bugzilla.gnome.org/show_bug.cgi?id=767914

 src/examples/Makefile.am            |    6 +-
 src/examples/introspect-providers.c |  174 +++++++++++++++++++++++++++++++++++
 2 files changed, 179 insertions(+), 1 deletions(-)
---
diff --git a/src/examples/Makefile.am b/src/examples/Makefile.am
index e837d9a..155814e 100644
--- a/src/examples/Makefile.am
+++ b/src/examples/Makefile.am
@@ -26,7 +26,11 @@ lastfm_shout_CFLAGS = $(GLIB_CFLAGS) $(REST_CFLAGS)
 lastfm_shout_LDADD = $(GLIB_LIBS) $(REST_LIBS) ../goa/libgoa-1.0.la
 
 if BUILD_BACKEND
-noinst_PROGRAMS += list-providers add-pocket
+noinst_PROGRAMS += introspect-providers list-providers add-pocket
+
+introspect_providers_SOURCES = introspect-providers.c
+introspect_providers_CFLAGS = $(GLIB_CFLAGS) $(GTK_CFLAGS)
+introspect_providers_LDADD = $(GLIB_LIBS) $(GTK_LIBS) ../goabackend/libgoa-backend-1.0.la 
../goa/libgoa-1.0.la
 
 list_providers_SOURCES = list-providers.c
 list_providers_CFLAGS = $(GLIB_CFLAGS) $(GTK_CFLAGS)
diff --git a/src/examples/introspect-providers.c b/src/examples/introspect-providers.c
new file mode 100644
index 0000000..c39f5d6
--- /dev/null
+++ b/src/examples/introspect-providers.c
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2016 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <locale.h>
+
+#include <glib.h>
+
+#define GOA_API_IS_SUBJECT_TO_CHANGE
+#define GOA_BACKEND_API_IS_SUBJECT_TO_CHANGE
+#include <goabackend/goabackend.h>
+
+static struct
+{
+  GoaProviderFeatures feature;
+  const gchar *key;
+} provider_features_info[] = {
+  {
+    .feature = GOA_PROVIDER_FEATURE_MAIL,
+    .key = "MailEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_CALENDAR,
+    .key = "CalendarEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_CONTACTS,
+    .key = "ContactsEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_CHAT,
+    .key = "ChatEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_DOCUMENTS,
+    .key = "DocumentsEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_MUSIC,
+    .key = "MusicEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_PHOTOS,
+    .key = "PhotosEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_FILES,
+    .key = "FilesEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_TICKETING,
+    .key = "TicketingEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_READ_LATER,
+    .key = "ReadLaterEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_PRINTERS,
+    .key = "PrintersEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_MAPS,
+    .key = "MapsEnabled"
+  },
+  {
+    .feature = GOA_PROVIDER_FEATURE_INVALID,
+    .key = NULL
+  }
+};
+
+static void
+get_all (GObject *source_object, GAsyncResult *res, gpointer user_data)
+{
+  GError *error;
+  GList *providers = NULL;
+  GList *l;
+  GMainLoop *loop = (GMainLoop *) user_data;
+  GKeyFile *key_file = NULL;
+  gchar *key_file_data = NULL;
+
+  error = NULL;
+  if (!goa_provider_get_all_finish (&providers, res, &error))
+    {
+      g_warning ("Unable to get list of providers: %s", error->message);
+      g_error_free (error);
+      goto out;
+    }
+
+  key_file = g_key_file_new ();
+
+  for (l = providers; l != NULL; l=l->next)
+    {
+      GoaProvider *provider = GOA_PROVIDER (l->data);
+      GoaProviderFeatures features;
+      const gchar *type;
+      gchar *group;
+      guint i;
+
+      features = goa_provider_get_provider_features (provider);
+      if (features == GOA_PROVIDER_FEATURE_INVALID)
+        continue;
+
+      type = goa_provider_get_provider_type (provider);
+      group = g_strconcat ("Provider ", type, NULL);
+
+      for (i = 0; provider_features_info[i].key != NULL; i++)
+        {
+          if ((features & provider_features_info[i].feature) != 0)
+            {
+              const gchar *key = provider_features_info[i].key;
+
+              /* The IMAP/SMTP provider uses Enabled instead of
+               * MailEnabled. We should probably fix it for consistency.
+               */
+              if (g_strcmp0 (type, "imap_smtp") == 0 && g_strcmp0 (key, "MailEnabled") == 0)
+                key = "Enabled";
+
+              g_key_file_set_boolean (key_file, group, key, TRUE);
+            }
+        }
+
+      g_free (group);
+    }
+
+  error = NULL;
+  key_file_data = g_key_file_to_data (key_file, NULL, &error);
+  if (error != NULL)
+    {
+      g_warning ("Unable to serialize key file: %s", error->message);
+      g_error_free (error);
+      goto out;
+    }
+
+  g_print ("%s", key_file_data);
+
+ out:
+  g_clear_pointer (&key_file, (GDestroyNotify) g_key_file_unref);
+  g_free (key_file_data);
+  g_list_free_full (providers, g_object_unref);
+  g_main_loop_quit (loop);
+}
+
+gint
+main (void)
+{
+  GMainLoop *loop;
+
+  setlocale (LC_ALL, "");
+
+  /* Workaround https://bugzilla.gnome.org/show_bug.cgi?id=674885. */
+  g_type_ensure (G_TYPE_DBUS_CONNECTION);
+
+  loop = g_main_loop_new (NULL, FALSE);
+
+  goa_provider_get_all (get_all, loop);
+  g_main_loop_run (loop);
+
+  g_main_loop_unref (loop);
+  return 0;
+}