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[evolution-data-server/account-mgmt: 40/43] Add 'google-backend' module.

commit be18cecd359d98019ef4f8e27d7761ca4c8a94ed
Author: Matthew Barnes <mbarnes redhat com>
Date:   Thu Apr 5 00:22:02 2012 -0400

    Add 'google-backend' module.

 configure.ac                                   |    1 +
 modules/Makefile.am                            |    1 +
 modules/google-backend/Makefile.am             |   29 ++
 modules/google-backend/module-google-backend.c |  497 ++++++++++++++++++++++++
 4 files changed, 528 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 4f819db..c070333 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1651,6 +1651,7 @@ libedataserver/libedataserver.pc
 libedataserverui/Makefile
 libedataserverui/libedataserverui.pc
 modules/Makefile
+modules/google-backend/Makefile
 modules/online-accounts/Makefile
 private/Makefile
 services/Makefile
diff --git a/modules/Makefile.am b/modules/Makefile.am
index 6f7cf42..5c84f5b 100644
--- a/modules/Makefile.am
+++ b/modules/Makefile.am
@@ -5,6 +5,7 @@ ONLINE_ACCOUNTS_DIR = online-accounts
 endif
 
 SUBDIRS = \
+	google-backend \
 	$(ONLINE_ACCOUNTS_DIR) \
 	$(NULL)
 
diff --git a/modules/google-backend/Makefile.am b/modules/google-backend/Makefile.am
new file mode 100644
index 0000000..9a046dc
--- /dev/null
+++ b/modules/google-backend/Makefile.am
@@ -0,0 +1,29 @@
+NULL =
+
+module_LTLIBRARIES = module-google-backend.la
+
+module_google_backend_la_CPPFLAGS = \
+	$(AM_CPPFLAGS) \
+	-I$(top_srcdir) \
+	-DG_LOG_DOMAIN=\"module-google-backend\" \
+	$(E_BACKEND_CFLAGS) \
+	$(E_DATA_SERVER_CFLAGS) \
+	$(NULL)
+
+module_google_backend_la_SOURCES = \
+	module-google-backend.c \
+	$(NULL)
+
+module_google_backend_la_LIBADD = \
+	$(top_builddir)/libebackend/libebackend-1.2.la \
+	$(top_builddir)/libedataserver/libedataserver-1.2.la \
+	$(top_builddir)/camel/libcamel-1.2.la \
+	$(E_BACKEND_LIBS) \
+	$(E_DATA_SERVER_LIBS) \
+	$(NULL)
+
+module_google_backend_la_LDFLAGS = \
+	-module -avoid-version $(NO_UNDEFINED) \
+	$(NULL)
+
+-include $(top_srcdir)/git.mk
diff --git a/modules/google-backend/module-google-backend.c b/modules/google-backend/module-google-backend.c
new file mode 100644
index 0000000..040be87
--- /dev/null
+++ b/modules/google-backend/module-google-backend.c
@@ -0,0 +1,497 @@
+/*
+ * module-google-backend.c
+ *
+ * This program 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) version 3.
+ *
+ * This program 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 the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+#include <config.h>
+#include <glib/gi18n-lib.h>
+
+#include <libedataserver/e-uid.h>
+#include <libedataserver/e-source-address-book.h>
+#include <libedataserver/e-source-authentication.h>
+#include <libedataserver/e-source-calendar.h>
+#include <libedataserver/e-source-camel.h>
+#include <libedataserver/e-source-collection.h>
+#include <libedataserver/e-source-mail-account.h>
+#include <libedataserver/e-source-mail-identity.h>
+#include <libedataserver/e-source-mail-transport.h>
+#include <libedataserver/e-source-security.h>
+#include <libedataserver/e-source-webdav.h>
+
+#include <libebackend/e-collection-backend.h>
+#include <libebackend/e-collection-backend-factory.h>
+#include <libebackend/e-server-side-source.h>
+#include <libebackend/e-source-registry-server.h>
+
+/* Standard GObject macros */
+#define E_TYPE_GOOGLE_BACKEND \
+	(e_google_backend_get_type ())
+#define E_GOOGLE_BACKEND(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_GOOGLE_BACKEND, EGoogleBackend))
+
+/* Standard GObject macros */
+#define E_TYPE_GOOGLE_BACKEND_FACTORY \
+	(e_google_backend_get_type ())
+#define E_GOOGLE_BACKEND_FACTORY(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_GOOGLE_BACKEND_FACTORY, EGoogleBackendFactory))
+
+/* Just for readability... */
+#define METHOD(x) (CAMEL_NETWORK_SECURITY_METHOD_##x)
+
+/* IMAP Configuration Details */
+#define GOOGLE_IMAP_BACKEND_NAME	"imapx"
+#define GOOGLE_IMAP_HOST		"imap.gmail.com"
+#define GOOGLE_IMAP_PORT		993
+#define GOOGLE_IMAP_SECURITY_METHOD	METHOD (SSL_ON_ALTERNATE_PORT)
+
+/* SMTP Configuration Details */
+#define GOOGLE_SMTP_BACKEND_NAME	"smtp"
+#define GOOGLE_SMTP_HOST		"smtp.gmail.com"
+#define GOOGLE_SMTP_PORT		587
+#define GOOGLE_SMTP_SECURITY_METHOD	METHOD (STARTTLS_ON_STANDARD_PORT)
+
+/* Calendar Configuration Details */
+#define GOOGLE_CALENDAR_BACKEND_NAME	"caldav"
+#define GOOGLE_CALENDAR_HOST		"www.google.com"
+#define GOOGLE_CALENDAR_CALDAV_PATH	"/calendar/dav/%s/events"
+
+/* Contacts Configuration Details */
+#define GOOGLE_CONTACTS_BACKEND_NAME	"google"
+
+typedef struct _EGoogleBackend EGoogleBackend;
+typedef struct _EGoogleBackendClass EGoogleBackendClass;
+
+typedef struct _EGoogleBackendFactory EGoogleBackendFactory;
+typedef struct _EGoogleBackendFactoryClass EGoogleBackendFactoryClass;
+
+struct _EGoogleBackend {
+	ECollectionBackend parent;
+};
+
+struct _EGoogleBackendClass {
+	ECollectionBackendClass parent_class;
+};
+
+struct _EGoogleBackendFactory {
+	ECollectionBackendFactory parent;
+};
+
+struct _EGoogleBackendFactoryClass {
+	ECollectionBackendFactoryClass parent_class;
+};
+
+/* Module Entry Points */
+void e_module_load (GTypeModule *type_module);
+void e_module_unload (GTypeModule *type_module);
+
+/* Forward Declarations */
+GType e_google_backend_get_type (void);
+GType e_google_backend_factory_get_type (void);
+
+G_DEFINE_DYNAMIC_TYPE (
+	EGoogleBackend,
+	e_google_backend,
+	E_TYPE_COLLECTION_BACKEND)
+
+G_DEFINE_DYNAMIC_TYPE (
+	EGoogleBackendFactory,
+	e_google_backend_factory,
+	E_TYPE_COLLECTION_BACKEND_FACTORY)
+
+static ESource *
+google_backend_new_source (ECollectionBackend *backend)
+{
+	ESourceRegistryServer *server;
+	ESource *source;
+	GFile *file;
+	gchar *new_uid;
+	gchar *filename;
+	const gchar *user_dir;
+	GError *error = NULL;
+
+	user_dir = e_server_side_source_get_user_dir ();
+
+	new_uid = e_uid_new ();
+	filename = g_build_filename (user_dir, new_uid, NULL);
+	file = g_file_new_for_path (filename);
+
+	/* This being a brand new data source, creating the instance
+	 * should never fail but we'll check for errors just the same. */
+	server = e_collection_backend_ref_server (backend);
+	source = e_server_side_source_new (server, file, &error);
+	g_object_unref (server);
+
+	g_object_unref (file);
+	g_free (filename);
+	g_free (new_uid);
+
+	if (error != NULL) {
+		g_warn_if_fail (source == NULL);
+		g_warning ("%s: %s", G_STRFUNC, error->message);
+		g_error_free (error);
+	}
+
+	return source;
+}
+
+static void
+google_backend_add_calendar (ECollectionBackend *backend)
+{
+	ESource *source;
+	ESource *collection_source;
+	ESourceRegistryServer *server;
+	ESourceExtension *extension;
+	ESourceCollection *collection_extension;
+	const gchar *backend_name;
+	const gchar *collection_uid;
+	const gchar *extension_name;
+	const gchar *identity;
+	gchar *path;
+
+	/* FIXME As a future enhancement, we should query Google
+	 *       for a list of user calendars and add them to the
+	 *       collection with matching display names and colors. */
+
+	collection_source = e_backend_get_source (E_BACKEND (backend));
+	collection_uid = e_source_get_uid (collection_source);
+
+	source = google_backend_new_source (backend);
+	e_source_set_display_name (source, _("Calendar"));
+	e_source_set_parent (source, collection_uid);
+
+	collection_extension = e_source_get_extension (
+		collection_source, E_SOURCE_EXTENSION_COLLECTION);
+
+	/* Configure the calendar source. */
+
+	backend_name = GOOGLE_CALENDAR_BACKEND_NAME;
+
+	extension_name = E_SOURCE_EXTENSION_CALENDAR;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_backend_set_backend_name (
+		E_SOURCE_BACKEND (extension), backend_name);
+
+	extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_authentication_set_host (
+		E_SOURCE_AUTHENTICATION (extension),
+		GOOGLE_CALENDAR_HOST);
+
+	g_object_bind_property (
+		collection_extension, "identity",
+		extension, "user",
+		G_BINDING_SYNC_CREATE);
+
+	extension_name = E_SOURCE_EXTENSION_SECURITY;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_security_set_secure (
+		E_SOURCE_SECURITY (extension), TRUE);
+
+	extension_name = E_SOURCE_EXTENSION_WEBDAV_BACKEND;
+	extension = e_source_get_extension (source, extension_name);
+
+	identity = e_source_collection_get_identity (collection_extension);
+	path = g_strdup_printf (GOOGLE_CALENDAR_CALDAV_PATH, identity);
+	e_source_webdav_set_resource_path (
+		E_SOURCE_WEBDAV (extension), path);
+	g_free (path);
+
+	server = e_collection_backend_ref_server (backend);
+	e_source_registry_server_add_source (server, source);
+	g_object_unref (server);
+
+	g_object_unref (source);
+}
+
+static void
+google_backend_add_contacts (ECollectionBackend *backend)
+{
+	ESource *source;
+	ESource *collection_source;
+	ESourceRegistryServer *server;
+	ESourceExtension *extension;
+	ESourceCollection *collection_extension;
+	const gchar *backend_name;
+	const gchar *collection_uid;
+	const gchar *extension_name;
+
+	collection_source = e_backend_get_source (E_BACKEND (backend));
+	collection_uid = e_source_get_uid (collection_source);
+
+	source = google_backend_new_source (backend);
+	e_source_set_display_name (source, _("Contacts"));
+	e_source_set_parent (source, collection_uid);
+
+	/* Add the address book source to the collection. */
+	collection_extension = e_source_get_extension (
+		collection_source, E_SOURCE_EXTENSION_COLLECTION);
+
+	/* Configure the address book source. */
+
+	backend_name = GOOGLE_CONTACTS_BACKEND_NAME;
+
+	extension_name = E_SOURCE_EXTENSION_ADDRESS_BOOK;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_backend_set_backend_name (
+		E_SOURCE_BACKEND (extension), backend_name);
+
+	extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
+	extension = e_source_get_extension (source, extension_name);
+
+	g_object_bind_property (
+		collection_extension, "identity",
+		extension, "user",
+		G_BINDING_SYNC_CREATE);
+
+	extension_name = E_SOURCE_EXTENSION_SECURITY;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_security_set_secure (
+		E_SOURCE_SECURITY (extension), TRUE);
+
+	server = e_collection_backend_ref_server (backend);
+	e_source_registry_server_add_source (server, source);
+	g_object_unref (server);
+
+	g_object_unref (source);
+}
+
+static void
+google_backend_populate (ECollectionBackend *backend)
+{
+	GList *list;
+
+	list = e_collection_backend_list_calendar_sources (backend);
+	if (list == NULL)
+		google_backend_add_calendar (backend);
+	g_list_free_full (list, (GDestroyNotify) g_object_unref);
+
+	list = e_collection_backend_list_contacts_sources (backend);
+	if (list == NULL)
+		google_backend_add_contacts (backend);
+	g_list_free_full (list, (GDestroyNotify) g_object_unref);
+
+	/* Chain up to parent's populate() method. */
+	E_COLLECTION_BACKEND_CLASS (e_google_backend_parent_class)->
+		populate (backend);
+}
+
+static void
+google_backend_child_added (ECollectionBackend *backend,
+                            ESource *child_source)
+{
+	ESource *collection_source;
+	const gchar *extension_name;
+	gboolean is_mail = FALSE;
+
+	collection_source = e_backend_get_source (E_BACKEND (backend));
+
+	extension_name = E_SOURCE_EXTENSION_MAIL_ACCOUNT;
+	is_mail |= e_source_has_extension (child_source, extension_name);
+
+	extension_name = E_SOURCE_EXTENSION_MAIL_IDENTITY;
+	is_mail |= e_source_has_extension (child_source, extension_name);
+
+	extension_name = E_SOURCE_EXTENSION_MAIL_TRANSPORT;
+	is_mail |= e_source_has_extension (child_source, extension_name);
+
+	/* Synchronize mail-related display names with the collection. */
+	if (is_mail)
+		g_object_bind_property (
+			collection_source, "display-name",
+			child_source, "display_name",
+			G_BINDING_SYNC_CREATE);
+
+	/* Synchronize mail-related user with the collection identity. */
+	extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
+	if (is_mail && e_source_has_extension (child_source, extension_name)) {
+		ESourceAuthentication *auth_child_extension;
+		ESourceCollection *collection_extension;
+
+		extension_name = E_SOURCE_EXTENSION_COLLECTION;
+		collection_extension = e_source_get_extension (
+			collection_source, extension_name);
+
+		extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
+		auth_child_extension = e_source_get_extension (
+			child_source, extension_name);
+
+		g_object_bind_property (
+			collection_extension, "identity",
+			auth_child_extension, "user",
+			G_BINDING_SYNC_CREATE);
+	}
+
+	/* Chain up to parent's child_added() method. */
+	E_COLLECTION_BACKEND_CLASS (e_google_backend_parent_class)->
+		child_added (backend, child_source);
+}
+
+static void
+e_google_backend_class_init (EGoogleBackendClass *class)
+{
+	ECollectionBackendClass *backend_class;
+
+	backend_class = E_COLLECTION_BACKEND_CLASS (class);
+	backend_class->populate = google_backend_populate;
+	backend_class->child_added = google_backend_child_added;
+}
+
+static void
+e_google_backend_class_finalize (EGoogleBackendClass *class)
+{
+}
+
+static void
+e_google_backend_init (EGoogleBackend *backend)
+{
+}
+
+static void
+google_backend_prepare_mail_account_source (ESource *source)
+{
+	ESourceCamel *camel_extension;
+	ESourceExtension *extension;
+	CamelSettings *settings;
+	const gchar *backend_name;
+	const gchar *extension_name;
+
+	backend_name = GOOGLE_IMAP_BACKEND_NAME;
+
+	extension_name = E_SOURCE_EXTENSION_MAIL_ACCOUNT;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_backend_set_backend_name (
+		E_SOURCE_BACKEND (extension), backend_name);
+
+	extension_name = e_source_camel_get_extension_name (backend_name);
+	camel_extension = e_source_get_extension (source, extension_name);
+	settings = e_source_camel_get_settings (camel_extension);
+
+	/* The "auth-mechanism" should be determined elsewhere. */
+
+	camel_network_settings_set_host (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_IMAP_HOST);
+
+	camel_network_settings_set_port (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_IMAP_PORT);
+
+	camel_network_settings_set_security_method (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_IMAP_SECURITY_METHOD);
+}
+
+static void
+google_backend_prepare_mail_transport_source (ESource *source)
+{
+	ESourceCamel *camel_extension;
+	ESourceExtension *extension;
+	CamelSettings *settings;
+	const gchar *backend_name;
+	const gchar *extension_name;
+
+	/* Configure the mail transport source. */
+
+	backend_name = GOOGLE_SMTP_BACKEND_NAME;
+
+	extension_name = E_SOURCE_EXTENSION_MAIL_TRANSPORT;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_backend_set_backend_name (
+		E_SOURCE_BACKEND (extension), backend_name);
+
+	extension_name = e_source_camel_get_extension_name (backend_name);
+	camel_extension = e_source_get_extension (source, extension_name);
+	settings = e_source_camel_get_settings (camel_extension);
+
+	/* The "auth-mechanism" should be determined elsewhere. */
+
+	camel_network_settings_set_host (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_SMTP_HOST);
+
+	camel_network_settings_set_port (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_SMTP_PORT);
+
+	camel_network_settings_set_security_method (
+		CAMEL_NETWORK_SETTINGS (settings),
+		GOOGLE_SMTP_SECURITY_METHOD);
+}
+
+static void
+google_backend_factory_prepare_mail (ECollectionBackendFactory *factory,
+                                     ESource *mail_account_source,
+                                     ESource *mail_identity_source,
+                                     ESource *mail_transport_source)
+{
+	ECollectionBackendFactoryClass *parent_class;
+
+	/* Chain up to parent's prepare_mail() method. */
+	parent_class =
+		E_COLLECTION_BACKEND_FACTORY_CLASS (
+		e_google_backend_factory_parent_class);
+	parent_class->prepare_mail (
+		factory,
+		mail_account_source,
+		mail_identity_source,
+		mail_transport_source);
+
+	google_backend_prepare_mail_account_source (mail_account_source);
+	google_backend_prepare_mail_transport_source (mail_transport_source);
+}
+
+static void
+e_google_backend_factory_class_init (EGoogleBackendFactoryClass *class)
+{
+	ECollectionBackendFactoryClass *factory_class;
+
+	factory_class = E_COLLECTION_BACKEND_FACTORY_CLASS (class);
+	factory_class->factory_name = "google";
+	factory_class->backend_type = E_TYPE_GOOGLE_BACKEND;
+	factory_class->prepare_mail = google_backend_factory_prepare_mail;
+}
+
+static void
+e_google_backend_factory_class_finalize (EGoogleBackendFactoryClass *class)
+{
+}
+
+static void
+e_google_backend_factory_init (EGoogleBackendFactory *factory)
+{
+}
+
+G_MODULE_EXPORT void
+e_module_load (GTypeModule *type_module)
+{
+	e_google_backend_register_type (type_module);
+	e_google_backend_factory_register_type (type_module);
+}
+
+G_MODULE_EXPORT void
+e_module_unload (GTypeModule *type_module)
+{
+}
+
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