[gnome-keyring] Use the XDG directories for storing keys

[Stefan Walter <stefw src gnome org>]

commit 747b37bbd8fb82830524c8603f6fcf1ceae605dc
Author: Stef Walter <stefw gnome org>
Date:   Sat Aug 11 07:18:59 2012 +0200

    Use the XDG directories for storing keys
    
     * If the new XDG directory doesn't exist, and the old
       ~/.gnome2/keyrings does exist, then continue to use that
     * Otherwise create the new directory in g_get_user_data_dir() as
       appropriate.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=613644

 daemon/dbus/gkd-secret-service.c        |   30 +++++++++++++++++++++---
 pkcs11/gkm/gkm-util.c                   |   37 +++++++++++++++++++++++++++++++
 pkcs11/gkm/gkm-util.h                   |    2 +
 pkcs11/gnome2-store/gkm-gnome2-module.c |    7 +++++-
 pkcs11/secret-store/gkm-secret-module.c |   11 +++++----
 5 files changed, 77 insertions(+), 10 deletions(-)
---
diff --git a/daemon/dbus/gkd-secret-service.c b/daemon/dbus/gkd-secret-service.c
index 5efd66e..6319f5c 100644
--- a/daemon/dbus/gkd-secret-service.c
+++ b/daemon/dbus/gkd-secret-service.c
@@ -61,6 +61,7 @@ struct _GkdSecretService {
 	GkdSecretObjects *objects;
 	GHashTable *aliases;
 	GckSession *internal_session;
+	gchar *alias_directory;
 };
 
 typedef struct _ServiceClient {
@@ -82,9 +83,30 @@ G_DEFINE_TYPE (GkdSecretService, gkd_secret_service, G_TYPE_OBJECT);
  */
 
 static gchar*
-default_path (void)
+default_path (GkdSecretService *self)
 {
-	return g_build_filename (g_get_home_dir (), ".gnome2", "keyrings", "default", NULL);
+	gchar *old_directory;
+	gchar *new_directory;
+
+	if (self->alias_directory == NULL) {
+		new_directory = g_build_filename (g_get_user_data_dir (), "keyrings", NULL);
+		old_directory = g_build_filename (g_get_home_dir (), ".gnome2", "keyrings", NULL);
+
+		if (!g_file_test (new_directory, G_FILE_TEST_IS_DIR) &&
+		    g_file_test (old_directory, G_FILE_TEST_IS_DIR)) {
+			self->alias_directory = old_directory;
+			old_directory = NULL;
+		} else {
+			self->alias_directory = new_directory;
+			new_directory = NULL;
+		}
+
+		g_free (old_directory);
+		g_free (new_directory);
+		g_debug ("keyring alias directory: %s", self->alias_directory);
+	}
+
+	return g_build_filename (self->alias_directory, "default", NULL);
 }
 
 static void
@@ -100,7 +122,7 @@ update_default (GkdSecretService *self, gboolean force)
 			return;
 	}
 
-	path = default_path ();
+	path = default_path (self);
 	if (g_file_get_contents (path, &contents, NULL, NULL)) {
 		g_strstrip (contents);
 		if (!contents[0]) {
@@ -124,7 +146,7 @@ store_default (GkdSecretService *self)
 	if (!identifier)
 		return;
 
-	path = default_path ();
+	path = default_path (self);
 	if (!g_file_set_contents (path, identifier, -1, &error))
 		g_message ("couldn't store default keyring: %s", egg_error_message (error));
 	g_free (path);
diff --git a/pkcs11/gkm/gkm-util.c b/pkcs11/gkm/gkm-util.c
index 32fb722..0106d56 100644
--- a/pkcs11/gkm/gkm-util.c
+++ b/pkcs11/gkm/gkm-util.c
@@ -60,7 +60,10 @@
 
 #include <glib.h>
 #include <glib-object.h>
+#include <glib/gstdio.h>
 
+#include <errno.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 
@@ -135,3 +138,37 @@ gkm_util_dispose_unref (gpointer object)
 	g_object_run_dispose (G_OBJECT (object));
 	g_object_unref (object);
 }
+
+gchar *
+gkm_util_locate_keyrings_directory (void)
+{
+	gchar *old_directory;
+	gchar *new_directory;
+	gchar *directory;
+
+	old_directory = g_build_filename (g_get_home_dir (), ".gnome2", "keyrings", NULL);
+	new_directory = g_build_filename (g_get_user_data_dir (), "keyrings", NULL);
+
+	/*
+	 * If the new XDG directory doesn't exist, and the old one does,
+	 * use the old one, otherwise create/use the new XDG location.
+	 */
+
+	if (!g_file_test (new_directory, G_FILE_TEST_IS_DIR) &&
+	    g_file_test (old_directory, G_FILE_TEST_IS_DIR)) {
+		directory = old_directory;
+		old_directory = NULL;
+
+		g_message ("using old keyring directory: %s", directory);
+	} else {
+		directory = new_directory;
+		new_directory = NULL;
+
+		if (g_mkdir_with_parents (directory, S_IRWXU) < 0)
+			g_warning ("unable to create keyring dir: %s", directory);
+	}
+
+	g_free (old_directory);
+	g_free (new_directory);
+	return directory;
+}
diff --git a/pkcs11/gkm/gkm-util.h b/pkcs11/gkm/gkm-util.h
index c9af5a7..06cd33a 100644
--- a/pkcs11/gkm/gkm-util.h
+++ b/pkcs11/gkm/gkm-util.h
@@ -64,4 +64,6 @@ CK_ULONG              gkm_util_next_handle                        (void);
 
 void                  gkm_util_dispose_unref                      (gpointer object);
 
+gchar *               gkm_util_locate_keyrings_directory          (void);
+
 #endif /* GKM_UTIL_H_ */
diff --git a/pkcs11/gnome2-store/gkm-gnome2-module.c b/pkcs11/gnome2-store/gkm-gnome2-module.c
index a63e6af..4c51796 100644
--- a/pkcs11/gnome2-store/gkm-gnome2-module.c
+++ b/pkcs11/gnome2-store/gkm-gnome2-module.c
@@ -29,6 +29,8 @@
 
 #include "gkm/gkm-certificate.h"
 #include "gkm/gkm-data-asn1.h"
+#define DEBUG_FLAG GKM_DEBUG_STORAGE
+#include "gkm/gkm-debug.h"
 #include "gkm/gkm-manager.h"
 #include "gkm/gkm-secret.h"
 #include "gkm/gkm-transaction.h"
@@ -264,10 +266,13 @@ static GObject*
 gkm_gnome2_module_constructor (GType type, guint n_props, GObjectConstructParam *props)
 {
 	GkmGnome2Module *self = GKM_GNOME2_MODULE (G_OBJECT_CLASS (gkm_gnome2_module_parent_class)->constructor(type, n_props, props));
+
 	g_return_val_if_fail (self, NULL);
 
 	if (!self->directory)
-		self->directory = g_build_filename (g_get_home_dir (), ".gnome2", "keyrings", NULL);
+		self->directory = gkm_util_locate_keyrings_directory ();
+	gkm_debug ("gnome2 module directory: %s", self->directory);
+
 	self->storage = gkm_gnome2_storage_new (GKM_MODULE (self), self->directory);
 
 	return G_OBJECT (self);
diff --git a/pkcs11/secret-store/gkm-secret-module.c b/pkcs11/secret-store/gkm-secret-module.c
index cb22b0a..42d93f7 100644
--- a/pkcs11/secret-store/gkm-secret-module.c
+++ b/pkcs11/secret-store/gkm-secret-module.c
@@ -28,8 +28,11 @@
 #include "gkm-secret-store.h"
 
 #include "gkm/gkm-credential.h"
+#define DEBUG_FLAG GKM_DEBUG_STORAGE
+#include "gkm/gkm-debug.h"
 #include "gkm/gkm-file-tracker.h"
 #include "gkm/gkm-transaction.h"
+#include "gkm/gkm-util.h"
 
 #include <glib/gstdio.h>
 
@@ -391,11 +394,9 @@ gkm_secret_module_constructor (GType type, guint n_props, GObjectConstructParam
 
 	g_return_val_if_fail (self, NULL);
 
-	if (!self->directory) {
-		self->directory = g_build_filename (g_get_home_dir (), ".gnome2", "keyrings", NULL);
-		if (g_mkdir_with_parents (self->directory, S_IRWXU) < 0)
-			g_warning ("unable to create keyring dir: %s", self->directory);
-	}
+	if (!self->directory)
+		self->directory = gkm_util_locate_keyrings_directory ();
+	gkm_debug ("secret store directory: %s", self->directory);
 
 	self->tracker = gkm_file_tracker_new (self->directory, "*.keyring", NULL);
 	g_signal_connect (self->tracker, "file-added", G_CALLBACK (on_file_load), self);