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[evolution-data-server/account-mgmt: 40/42] Add 'yahoo-backend' module.

commit f73850514b21117c27a94ee94adb8580f6f2b936
Author: Matthew Barnes <mbarnes redhat com>
Date:   Fri Apr 6 12:41:57 2012 -0400

    Add 'yahoo-backend' module.

 configure.ac                                 |    1 +
 modules/Makefile.am                          |    1 +
 modules/yahoo-backend/Makefile.am            |   29 ++
 modules/yahoo-backend/module-yahoo-backend.c |  461 ++++++++++++++++++++++++++
 4 files changed, 492 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index abfec07..7ef2560 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1661,6 +1661,7 @@ libedataserverui/libedataserverui.pc
 modules/Makefile
 modules/google-backend/Makefile
 modules/online-accounts/Makefile
+modules/yahoo-backend/Makefile
 private/Makefile
 services/Makefile
 services/evolution-addressbook-factory/Makefile
diff --git a/modules/Makefile.am b/modules/Makefile.am
index 5c84f5b..47a2e70 100644
--- a/modules/Makefile.am
+++ b/modules/Makefile.am
@@ -6,6 +6,7 @@ endif
 
 SUBDIRS = \
 	google-backend \
+	yahoo-backend \
 	$(ONLINE_ACCOUNTS_DIR) \
 	$(NULL)
 
diff --git a/modules/yahoo-backend/Makefile.am b/modules/yahoo-backend/Makefile.am
new file mode 100644
index 0000000..002df0d
--- /dev/null
+++ b/modules/yahoo-backend/Makefile.am
@@ -0,0 +1,29 @@
+NULL =
+
+module_LTLIBRARIES = module-yahoo-backend.la
+
+module_yahoo_backend_la_CPPFLAGS = \
+	$(AM_CPPFLAGS) \
+	-I$(top_srcdir) \
+	-DG_LOG_DOMAIN=\"module-yahoo-backend\" \
+	$(E_BACKEND_CFLAGS) \
+	$(E_DATA_SERVER_CFLAGS) \
+	$(NULL)
+
+module_yahoo_backend_la_SOURCES = \
+	module-yahoo-backend.c \
+	$(NULL)
+
+module_yahoo_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_yahoo_backend_la_LDFLAGS = \
+	-module -avoid-version $(NO_UNDEFINED) \
+	$(NULL)
+
+-include $(top_srcdir)/git.mk
diff --git a/modules/yahoo-backend/module-yahoo-backend.c b/modules/yahoo-backend/module-yahoo-backend.c
new file mode 100644
index 0000000..4e9b412
--- /dev/null
+++ b/modules/yahoo-backend/module-yahoo-backend.c
@@ -0,0 +1,461 @@
+/*
+ * module-yahoo-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_YAHOO_BACKEND \
+	(e_yahoo_backend_get_type ())
+#define E_YAHOO_BACKEND(obj) \
+	(G_TYPE_CHECK_INSTANCE_CAST \
+	((obj), E_TYPE_YAHOO_BACKEND, EYahooBackend))
+
+/* Just for readability... */
+#define METHOD(x) (CAMEL_NETWORK_SECURITY_METHOD_##x)
+
+/* IMAP Configuration Details */
+#define YAHOO_IMAP_BACKEND_NAME		"imapx"
+#define YAHOO_IMAP_HOST			"imap.mail.yahoo.com"
+#define YAHOO_IMAP_PORT			993
+#define YAHOO_IMAP_SECURITY_METHOD	METHOD (SSL_ON_ALTERNATE_PORT)
+
+/* SMTP Configuration Details */
+#define YAHOO_SMTP_BACKEND_NAME		"smtp"
+#define YAHOO_SMTP_HOST			"smtp.mail.yahoo.com"
+#define YAHOO_SMTP_PORT			465
+#define YAHOO_SMTP_SECURITY_METHOD	METHOD (SSL_ON_ALTERNATE_PORT)
+
+/* Calendar Configuration Details */
+#define YAHOO_CALENDAR_BACKEND_NAME	"caldav"
+#define YAHOO_CALENDAR_HOST		"caldav.calendar.yahoo.com"
+#define YAHOO_CALENDAR_CALDAV_PATH	"/dav/%s/Calendar/%s"
+
+typedef struct _EYahooBackend EYahooBackend;
+typedef struct _EYahooBackendClass EYahooBackendClass;
+
+typedef struct _EYahooBackendFactory EYahooBackendFactory;
+typedef struct _EYahooBackendFactoryClass EYahooBackendFactoryClass;
+
+struct _EYahooBackend {
+	ECollectionBackend parent;
+	GWeakRef mail_identity_source;
+};
+
+struct _EYahooBackendClass {
+	ECollectionBackendClass parent_class;
+};
+
+struct _EYahooBackendFactory {
+	ECollectionBackendFactory parent;
+};
+
+struct _EYahooBackendFactoryClass {
+	ECollectionBackendFactoryClass parent_class;
+};
+
+/* Module Entry Points */
+void e_module_load (GTypeModule *type_module);
+void e_module_unload (GTypeModule *type_module);
+
+/* Forward Declarations */
+GType e_yahoo_backend_get_type (void);
+GType e_yahoo_backend_factory_get_type (void);
+
+G_DEFINE_DYNAMIC_TYPE (
+	EYahooBackend,
+	e_yahoo_backend,
+	E_TYPE_COLLECTION_BACKEND)
+
+G_DEFINE_DYNAMIC_TYPE (
+	EYahooBackendFactory,
+	e_yahoo_backend_factory,
+	E_TYPE_COLLECTION_BACKEND_FACTORY)
+
+static void
+yahoo_backend_config_calendar_child (ECollectionBackend *backend,
+                                     ESource *source)
+{
+	EYahooBackend *yahoo_backend;
+	ESource *collection_source;
+	ESource *mail_identity_source;
+	ESourceExtension *extension;
+	ESourceCollection *collection_extension;
+	const gchar *extension_name;
+	const gchar *identity;
+	gchar *display_name = NULL;
+
+	/* FIXME As a future enhancement, we should query Yahoo!
+	 *       for a list of user calendars and add them to the
+	 *       collection with matching display names and colors. */
+
+	yahoo_backend = E_YAHOO_BACKEND (backend);
+
+	collection_source = e_backend_get_source (E_BACKEND (backend));
+
+	collection_extension = e_source_get_extension (
+		collection_source, E_SOURCE_EXTENSION_COLLECTION);
+
+	identity = e_source_collection_get_identity (collection_extension);
+
+	/* XXX Assume the calendar's display name can be derived from
+	 *     the user's mail identity.  As mentioned above, we should
+	 *     really just query Yahoo! for a list of user calendars. */
+	mail_identity_source =
+		g_weak_ref_get (&yahoo_backend->mail_identity_source);
+	if (mail_identity_source != NULL) {
+		extension = e_source_get_extension (
+			mail_identity_source,
+			E_SOURCE_EXTENSION_MAIL_IDENTITY);
+		display_name = e_source_mail_identity_dup_name (
+			E_SOURCE_MAIL_IDENTITY (extension));
+		if (display_name != NULL)
+			g_strdelimit (display_name, " ", '_');
+		g_object_unref (mail_identity_source);
+	}
+
+	extension_name = E_SOURCE_EXTENSION_AUTHENTICATION;
+	extension = e_source_get_extension (source, extension_name);
+
+	e_source_authentication_set_host (
+		E_SOURCE_AUTHENTICATION (extension),
+		YAHOO_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);
+
+	e_source_webdav_set_display_name (
+		E_SOURCE_WEBDAV (extension), display_name);
+
+	if (identity != NULL && display_name != NULL) {
+		gchar *resource_path;
+
+		resource_path = g_strdup_printf (
+			YAHOO_CALENDAR_CALDAV_PATH, identity, display_name);
+		e_source_webdav_set_resource_path (
+			E_SOURCE_WEBDAV (extension), resource_path);
+		g_free (resource_path);
+	}
+
+	g_free (display_name);
+}
+
+static void
+yahoo_backend_add_calendar (ECollectionBackend *backend)
+{
+	ESource *source;
+	ESourceBackend *extension;
+	ESourceRegistryServer *server;
+	const gchar *backend_name;
+	const gchar *extension_name;
+
+	/* XXX We could just stick a [Calendar] and [Task List] extension
+	 *     into the same ESource since all other settings are exactly
+	 *     the same.  But it might be confusing if tweaking a setting
+	 *     in your Yahoo! Calendar also gets applied to your Yahoo!
+	 *     Task List in Evolution. */
+
+	backend_name = YAHOO_CALENDAR_BACKEND_NAME;
+
+	server = e_collection_backend_ref_server (backend);
+
+	/* Add Yahoo! Calendar */
+
+	source = e_collection_backend_new_child (backend);
+	e_source_set_display_name (source, _("Calendar"));
+
+	extension_name = E_SOURCE_EXTENSION_CALENDAR;
+	extension = e_source_get_extension (source, extension_name);
+	e_source_backend_set_backend_name (extension, backend_name);
+
+	yahoo_backend_config_calendar_child (backend, source);
+	e_source_registry_server_add_source (server, source);
+
+	g_object_unref (source);
+
+	/* Add Yahoo! Tasks */
+
+	source = e_collection_backend_new_child (backend);
+	e_source_set_display_name (source, _("Tasks"));
+
+	extension_name = E_SOURCE_EXTENSION_TASK_LIST;
+	extension = e_source_get_extension (source, extension_name);
+	e_source_backend_set_backend_name (extension, backend_name);
+
+	yahoo_backend_config_calendar_child (backend, source);
+	e_source_registry_server_add_source (server, source);
+
+	g_object_unref (source);
+
+	g_object_unref (server);
+}
+
+static void
+yahoo_backend_populate (ECollectionBackend *backend)
+{
+	GList *list;
+
+	/* Chain up to parent's populate() method. */
+	E_COLLECTION_BACKEND_CLASS (e_yahoo_backend_parent_class)->
+		populate (backend);
+
+	/* Chain up first so we pick up the mail identity source. */
+	list = e_collection_backend_list_calendar_sources (backend);
+	if (list == NULL)
+		yahoo_backend_add_calendar (backend);
+	g_list_free_full (list, (GDestroyNotify) g_object_unref);
+}
+
+static void
+yahoo_backend_child_added (ECollectionBackend *backend,
+                           ESource *child_source)
+{
+	EYahooBackend *yahoo_backend;
+	ESource *collection_source;
+	const gchar *extension_name;
+	gboolean is_mail = FALSE;
+
+	yahoo_backend = E_YAHOO_BACKEND (backend);
+	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);
+
+	/* Take special note of the mail identity source.
+	 * We need it to build the calendar CalDAV path. */
+	extension_name = E_SOURCE_EXTENSION_MAIL_IDENTITY;
+	if (e_source_has_extension (child_source, extension_name)) {
+		GWeakRef *weak_ref;
+
+		weak_ref = &yahoo_backend->mail_identity_source;
+		g_weak_ref_set (weak_ref, child_source);
+		is_mail = TRUE;
+	}
+
+	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_yahoo_backend_parent_class)->
+		child_added (backend, child_source);
+}
+
+static void
+e_yahoo_backend_class_init (EYahooBackendClass *class)
+{
+	ECollectionBackendClass *backend_class;
+
+	backend_class = E_COLLECTION_BACKEND_CLASS (class);
+	backend_class->populate = yahoo_backend_populate;
+	backend_class->child_added = yahoo_backend_child_added;
+}
+
+static void
+e_yahoo_backend_class_finalize (EYahooBackendClass *class)
+{
+}
+
+static void
+e_yahoo_backend_init (EYahooBackend *backend)
+{
+}
+
+static void
+yahoo_backend_prepare_mail_account_source (ESource *source)
+{
+	ESourceCamel *camel_extension;
+	ESourceExtension *extension;
+	CamelSettings *settings;
+	const gchar *backend_name;
+	const gchar *extension_name;
+
+	backend_name = YAHOO_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),
+		YAHOO_IMAP_HOST);
+
+	camel_network_settings_set_port (
+		CAMEL_NETWORK_SETTINGS (settings),
+		YAHOO_IMAP_PORT);
+
+	camel_network_settings_set_security_method (
+		CAMEL_NETWORK_SETTINGS (settings),
+		YAHOO_IMAP_SECURITY_METHOD);
+}
+
+static void
+yahoo_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 = YAHOO_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),
+		YAHOO_SMTP_HOST);
+
+	camel_network_settings_set_port (
+		CAMEL_NETWORK_SETTINGS (settings),
+		YAHOO_SMTP_PORT);
+
+	camel_network_settings_set_security_method (
+		CAMEL_NETWORK_SETTINGS (settings),
+		YAHOO_SMTP_SECURITY_METHOD);
+}
+
+static void
+yahoo_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_yahoo_backend_factory_parent_class);
+	parent_class->prepare_mail (
+		factory,
+		mail_account_source,
+		mail_identity_source,
+		mail_transport_source);
+
+	yahoo_backend_prepare_mail_account_source (mail_account_source);
+	yahoo_backend_prepare_mail_transport_source (mail_transport_source);
+}
+
+static void
+e_yahoo_backend_factory_class_init (EYahooBackendFactoryClass *class)
+{
+	ECollectionBackendFactoryClass *factory_class;
+
+	factory_class = E_COLLECTION_BACKEND_FACTORY_CLASS (class);
+	factory_class->factory_name = "yahoo";
+	factory_class->backend_type = E_TYPE_YAHOO_BACKEND;
+	factory_class->prepare_mail = yahoo_backend_factory_prepare_mail;
+}
+
+static void
+e_yahoo_backend_factory_class_finalize (EYahooBackendFactoryClass *class)
+{
+}
+
+static void
+e_yahoo_backend_factory_init (EYahooBackendFactory *factory)
+{
+}
+
+G_MODULE_EXPORT void
+e_module_load (GTypeModule *type_module)
+{
+	e_yahoo_backend_register_type (type_module);
+	e_yahoo_backend_factory_register_type (type_module);
+}
+
+G_MODULE_EXPORT void
+e_module_unload (GTypeModule *type_module)
+{
+}
+
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