2003-02-15 Anders Carlsson <andersca@codefactory.se>

	* bus/Makefile.am:
	* bus/activation.c: (bus_activation_entry_free),
	(add_desktop_file_entry), (load_directory), (bus_activation_init):
	* bus/activation.h:
	* bus/main.c: (main):
	Add simple activation support, doesn't work yet though.

1 files changed, 216 insertions, 0 deletions

diff --git a/bus/activation.c b/bus/activation.c
new file mode 100644
index 00000000..7f7dd438
--- /dev/null
+++ b/bus/activation.c
@@ -0,0 +1,216 @@
+/* -*- mode: C; c-file-style: "gnu" -*- */
+/* activation.c  Activation of services
+ *
+ * Copyright (C) 2003  CodeFactory AB
+ *
+ * Licensed under the Academic Free License version 1.2
+ * 
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#include "activation.h"
+#include "desktop-file.h"
+#include "utils.h"
+#include <dbus/dbus-internals.h>
+#include <dbus/dbus-hash.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <errno.h>
+
+#define DBUS_SERVICE_SECTION "D-BUS Service"
+#define DBUS_SERVICE_NAME "Name"
+#define DBUS_SERVICE_EXEC "Exec"
+
+static DBusHashTable *activation_entries = NULL;
+
+typedef struct
+{
+  char *name;
+  char *exec;
+} BusActivationEntry;
+
+static void
+bus_activation_entry_free (BusActivationEntry *entry)
+{
+  if (!entry)
+    return;
+  
+  dbus_free (entry->name);
+  dbus_free (entry->exec);
+}
+
+static dbus_bool_t
+add_desktop_file_entry (BusDesktopFile *desktop_file)
+{
+  char *name, *exec;
+  BusActivationEntry *entry;
+  
+  if (!bus_desktop_file_get_string (desktop_file,
+				    DBUS_SERVICE_SECTION,
+				    DBUS_SERVICE_NAME,
+				    &name))
+    {
+      _dbus_verbose ("No \""DBUS_SERVICE_NAME"\" key in .service file\n");
+      return FALSE;
+    }
+
+  if (!bus_desktop_file_get_string (desktop_file,
+				    DBUS_SERVICE_SECTION,
+				    DBUS_SERVICE_EXEC,
+				    &exec))
+    {
+      _dbus_verbose ("No \""DBUS_SERVICE_EXEC"\" key in .service file\n");
+      
+      dbus_free (name);
+      return FALSE;
+    }
+
+  if (_dbus_hash_table_lookup_string (activation_entries, name))
+    {
+      _dbus_verbose ("Service %s already exists in activation entry list\n", name);
+      dbus_free (name);
+      dbus_free (exec);
+
+      return FALSE;
+    }
+  
+  BUS_HANDLE_OOM (entry = dbus_malloc0 (sizeof (BusActivationEntry)));
+  entry->name = name;
+  entry->exec = exec;
+
+  BUS_HANDLE_OOM (_dbus_hash_table_insert_string (activation_entries, entry->name, entry));
+
+  _dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
+  
+  return TRUE;
+}
+
+static void
+load_directory (const char *directory)
+{
+  DBusDirIter *iter;
+  DBusString dir, filename;
+  DBusResultCode result;
+
+  _dbus_string_init_const (&dir, directory);
+  
+  iter = _dbus_directory_open (&dir, &result);
+  if (iter == NULL)
+    {
+      _dbus_verbose ("Failed to open directory %s: &s\n", directory,
+		     result);
+    return;
+    }
+
+  BUS_HANDLE_OOM (_dbus_string_init (&filename, _DBUS_INT_MAX));
+  
+  /* Now read the files */
+  while (_dbus_directory_get_next_file (iter, &filename, &result))
+    {
+      DBusString full_path;
+      BusDesktopFile *desktop_file;
+      DBusError error;
+      
+      if (!_dbus_string_ends_with_c_str (&filename, ".service"))
+	{
+          const char *filename_c;
+          _dbus_string_get_const_data (&filename, &filename_c);
+          _dbus_verbose ("Skipping non-.service file %s\n",
+                         filename_c);
+	  continue;
+	}
+      
+      BUS_HANDLE_OOM (_dbus_string_init (&full_path, _DBUS_INT_MAX));
+      BUS_HANDLE_OOM (_dbus_string_append (&full_path, directory));
+
+      BUS_HANDLE_OOM (_dbus_concat_dir_and_file (&full_path, &filename));
+
+      desktop_file = bus_desktop_file_load (&full_path, &error);
+
+      if (!desktop_file)
+	{
+	  const char *full_path_c;
+
+          _dbus_string_get_const_data (&full_path, &full_path_c);
+	  
+	  _dbus_verbose ("Could not load %s: %s\n", full_path_c,
+			 error.message);
+	  dbus_error_free (&error);
+	  _dbus_string_free (&full_path);
+	  continue;
+	}
+
+      if (!add_desktop_file_entry (desktop_file))
+	{
+	  const char *full_path_c;
+
+          _dbus_string_get_const_data (&full_path, &full_path_c);
+	  
+	  _dbus_verbose ("Could not add %s to activation entry list.\n", full_path_c);
+	}
+
+      bus_desktop_file_free (desktop_file);
+      _dbus_string_free (&full_path);
+    }
+
+#if 0
+  while ((directory_entry = readdir (directory_handle)))
+    {
+      DBusString path, filename;
+      BusDesktopFile *desktop_file;
+      DBusError error;
+      const char *filename_c;
+
+      
+      _dbus_string_init_const (&filename, directory_entry->d_name);
+
+
+      _dbus_string_get_const_data (&path, &filename_c);      
+
+      if (!desktop_file)
+	{
+	  _dbus_verbose ("Could not load %s: %s\n", filename_c,
+			 error.message);
+	  dbus_error_free (&error);
+	  _dbus_string_free (&path);
+	  continue;
+	}
+
+      if (!add_desktop_file_entry (desktop_file))
+	{
+	  _dbus_verbose ("Could not add %s to activation entry list.\n", filename_c);
+	}
+    }
+#endif
+}
+
+
+void
+bus_activation_init (const char **directories)
+{
+  int i;
+
+  BUS_HANDLE_OOM (activation_entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
+							     (DBusFreeFunction)bus_activation_entry_free));
+
+  i = 0;
+
+  /* Load service files */
+  while (directories[i] != NULL)
+    {
+      load_directory (directories[i]);
+      i++;
+    }
+}