[evolution] Initial implementation of setting evolution as default mail client and mailto handler.

[Fridrich Strba <strba src gnome org>]

commit 74857dc13698763b8136092ba4267802fe53a399
Author: Fridrich Å trba <fridrich strba bluewin ch>
Date:   Thu May 13 15:35:06 2010 +0200

    Initial implementation of setting evolution as default mail client and mailto handler.

 e-util/Makefile.am        |    2 +-
 e-util/e-win32-defaults.c |  277 +++++++++++++++++++++++++++++++++++++++++++++
 e-util/e-win32-defaults.h |   36 ++++++
 3 files changed, 314 insertions(+), 1 deletions(-)
---
diff --git a/e-util/Makefile.am b/e-util/Makefile.am
index e6e3637..a258c64 100644
--- a/e-util/Makefile.am
+++ b/e-util/Makefile.am
@@ -4,7 +4,7 @@ ecpsdir = $(privdatadir)/ecps
 ruledir = $(privdatadir)
 
 if OS_WIN32
-PLATFORM_SOURCES = e-win32-reloc.c
+PLATFORM_SOURCES = e-win32-reloc.c e-win32-defaults.c e-win32-defaults.h
 endif
 
 privsolib_LTLIBRARIES = libeutil.la libeconduit.la
diff --git a/e-util/e-win32-defaults.c b/e-util/e-win32-defaults.c
new file mode 100644
index 0000000..3d919a0
--- /dev/null
+++ b/e-util/e-win32-defaults.c
@@ -0,0 +1,277 @@
+/*
+ *
+ * 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/>
+ *
+ *
+ * Authors:
+ *		Fridrich Strba <fridrich strba bluewin ch>
+ *
+ * Copyright (C) 2010 Fridrich Strba
+ *
+ */
+
+#include <windows.h>
+
+#include "e-win32-defaults.h"
+#include "e-util-private.h"
+
+#define MAX_VALUE_NAME 4096
+#define EVOBINARY "evolution.exe"
+#define EUTILDLL "libeutil-0.dll"
+#define CANONICALNAME "Evolution"
+
+static gchar *
+_e_win32_sanitize_path (gchar *path)
+{
+	gchar *p = path;
+	while (*p != '\0') {
+		if (G_IS_DIR_SEPARATOR (*p))
+			*p = G_DIR_SEPARATOR;
+		p = g_utf8_find_next_char (p, NULL);
+	}
+	return path;
+}
+
+static void
+_e_register_mailto_structure (HKEY hKey)
+{
+	LONG returnValue;
+	DWORD dwDisposition;
+	gchar *defaultIcon = NULL;
+	gchar *evolutionBinary = NULL;
+	gchar *mailtoCommand = NULL;
+	BYTE editFlags[4] = { 0x02, 0x00, 0x00, 0x00 };
+	
+	static HKEY tmp_subkey = (HKEY) INVALID_HANDLE_VALUE;
+	
+	if ((returnValue = RegSetValueExA (hKey, NULL, 0, REG_SZ, (const BYTE *)"URL:MailTo Protocol", strlen ("URL:MailTo Protocol") + 1)))
+		return;
+	if ((returnValue = RegSetValueExA (hKey, "EditFlags", 0, REG_BINARY, editFlags, G_N_ELEMENTS (editFlags))))
+		return;
+	if ((returnValue = RegSetValueExA (hKey, "URL Protocol", 0, REG_SZ, (const BYTE *)"", strlen ("") + 1)))
+		return;
+
+	RegFlushKey (hKey);
+
+	if ((returnValue = RegCreateKeyExA (hKey, "DefaultIcon", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &tmp_subkey, &dwDisposition)))
+		return;
+
+	evolutionBinary = _e_win32_sanitize_path (g_build_path (G_DIR_SEPARATOR_S, _e_get_bindir (), EVOBINARY, NULL));
+	defaultIcon = g_strconcat (evolutionBinary, ",1", NULL);
+	g_free (evolutionBinary);
+	if ((returnValue = RegSetValueExA (tmp_subkey, NULL, 0, REG_SZ, (const BYTE *)defaultIcon, strlen (defaultIcon) + 1))) {
+		g_free (defaultIcon);
+		return;
+	}
+	g_free (defaultIcon);
+	
+	RegFlushKey (tmp_subkey);
+	
+	RegCloseKey (tmp_subkey);
+	
+	if ((returnValue = RegCreateKeyExA (hKey, "shell\\open\\command", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &tmp_subkey, &dwDisposition)))
+		return;
+
+	evolutionBinary = _e_win32_sanitize_path (g_build_path (G_DIR_SEPARATOR_S, _e_get_bindir (), EVOBINARY, NULL));
+	mailtoCommand = g_strconcat("\"", evolutionBinary,  "\" --component=mail mailto:\%1";, NULL);
+	g_free (evolutionBinary);
+	if ((returnValue = RegSetValueExA (tmp_subkey, NULL, 0, REG_SZ, (const BYTE *)mailtoCommand, strlen(mailtoCommand) + 1))) {
+		g_free (mailtoCommand);
+		return;
+	}
+	g_free (mailtoCommand);
+	
+	RegFlushKey (tmp_subkey);
+	
+	RegCloseKey (tmp_subkey);
+}
+
+static void
+_e_win32_register_mailer_impl (WINBOOL system)
+{
+	LONG returnValue;
+	DWORD i, dwDisposition;
+	gchar *defaultIcon = NULL;
+	gchar *dllPath = NULL;
+	gchar *dllShortPath = NULL;
+	DWORD dllShortPathLength;
+	gchar *evolutionBinary = NULL;
+	gchar *openCommand = NULL;
+	gchar *setDefaultCommand = NULL;
+	gchar *unsetDefaultCommand = NULL;
+
+	static HKEY reg_key = (HKEY) INVALID_HANDLE_VALUE;
+	static HKEY reg_subkey = (HKEY) INVALID_HANDLE_VALUE;
+
+
+	if ((returnValue = RegCreateKeyExA (system ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER,
+		"Software\\Clients\\Mail\\" CANONICALNAME, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_key, &dwDisposition)))
+		return;
+	
+	if ((returnValue = RegSetValueExA (reg_key, NULL, 0, REG_SZ, (const BYTE *)CANONICALNAME, strlen(CANONICALNAME) + 1)))
+		return;
+	
+	dllPath = _e_win32_sanitize_path (g_build_path(G_DIR_SEPARATOR_S, _e_get_bindir (), EUTILDLL, NULL));
+	if ((returnValue = RegSetValueExA (reg_key, "DLLPath", 0, REG_SZ, (const BYTE *)dllPath, strlen (dllPath) + 1))) {
+		g_free (dllPath);
+		return;
+	}
+	g_free(dllPath);
+
+	RegFlushKey (reg_key);
+	
+	if ((returnValue = RegCreateKeyExA (reg_key, "DefaultIcon", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_subkey, &dwDisposition)))
+		return;
+	
+	evolutionBinary = _e_win32_sanitize_path (g_build_path (G_DIR_SEPARATOR_S, _e_get_bindir (), EVOBINARY, NULL));
+	defaultIcon = g_strconcat(evolutionBinary, ",0", NULL);
+	g_free (evolutionBinary);
+	if ((returnValue = RegSetValueExA (reg_subkey, NULL, 0, REG_SZ, (const BYTE *)defaultIcon, strlen (defaultIcon) + 1))) {
+		g_free (defaultIcon);
+		return;
+	}
+	
+	RegFlushKey (reg_subkey);
+	
+	RegCloseKey (reg_subkey);
+	
+	if ((returnValue = RegCreateKeyExA (reg_key, "shell\\open\\command", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_subkey, &dwDisposition)))
+		return;
+
+	evolutionBinary = _e_win32_sanitize_path (g_build_path (G_DIR_SEPARATOR_S, _e_get_bindir (), EVOBINARY, NULL));
+	openCommand = g_strconcat("\"", evolutionBinary, "\" -component=mail", NULL);
+	g_free (evolutionBinary);
+	if ((returnValue = RegSetValueExA (reg_subkey, NULL, 0, REG_SZ, (const BYTE *)openCommand, strlen (openCommand) + 1))) {
+		g_free (openCommand);
+		return;
+	}
+	g_free (openCommand);
+	
+	RegFlushKey (reg_subkey);
+	
+	RegCloseKey (reg_subkey);
+
+	if ((returnValue = RegCreateKeyExA (reg_key, "InstallInfo", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_subkey, &dwDisposition)))
+		return;
+	
+	dllPath = _e_win32_sanitize_path (g_build_path(G_DIR_SEPARATOR_S, _e_get_bindir (), EUTILDLL, NULL));
+	dllShortPathLength = GetShortPathNameA (dllPath, NULL, 0);
+	dllShortPath = g_new0 (char, dllShortPathLength);
+	GetShortPathNameA (dllPath, dllShortPath, dllShortPathLength);
+	g_free (dllPath);
+	
+	setDefaultCommand = g_strconcat ("rundll32 ", dllShortPath, ",_e_win32_set_default_mailer", NULL);
+	unsetDefaultCommand = g_strconcat ("rundll32 ", dllShortPath, ",_e_win32_set_default_mailer", NULL);
+	g_free (dllShortPath);
+
+	if ((returnValue = RegSetValueExA (reg_subkey, "ReinstallCommand", 0, REG_SZ, (const BYTE *)setDefaultCommand, strlen (setDefaultCommand) + 1))) {
+		g_free (setDefaultCommand);
+		g_free (unsetDefaultCommand);
+		return;
+	}
+	
+	if ((returnValue = RegSetValueExA (reg_subkey, "ShowIconsCommand", 0, REG_SZ, (const BYTE *)setDefaultCommand, strlen (setDefaultCommand) + 1))) {
+		g_free (setDefaultCommand);
+		g_free (unsetDefaultCommand);
+		return;
+	}
+
+	if ((returnValue = RegSetValueExA (reg_subkey, "HideIconsCommand", 0, REG_SZ, (const BYTE *)unsetDefaultCommand, strlen (unsetDefaultCommand) + 1))) {
+		g_free (setDefaultCommand);
+		g_free (unsetDefaultCommand);
+		return;
+	}
+
+	g_free (setDefaultCommand);
+	g_free (unsetDefaultCommand);
+	
+	i = 1;	
+	if ((returnValue = RegSetValueExA (reg_subkey, "IconsVisible", 0, REG_DWORD, (BYTE*)&i, sizeof (i))))
+		return;
+	
+	RegFlushKey (reg_subkey);
+	
+	RegCloseKey (reg_subkey);
+	
+	if ((returnValue = RegCreateKeyExA (reg_key, "Protocols\\mailto", 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_subkey, &dwDisposition)))
+		return;
+
+	if ((returnValue = RegSetValueExA (reg_key, NULL, 0, REG_SZ, (const BYTE *)CANONICALNAME, strlen (CANONICALNAME) + 1)))
+		return;
+	
+	_e_register_mailto_structure (reg_subkey);
+
+	RegCloseKey (reg_subkey);
+	
+	RegCloseKey (reg_key);
+}
+
+void
+_e_win32_register_mailer (void)
+{
+	_e_win32_register_mailer_impl (TRUE);
+	_e_win32_register_mailer_impl (FALSE);
+}
+
+static void
+_e_win32_set_default_mailer_impl (WINBOOL system)
+{
+	LONG returnValue;
+	DWORD dwDisposition;
+	
+	const char client_message[] = "Software\\Clients\\Mail";
+	const char mailto_message[] = "Software\\Classes\\mailto";
+
+	static HKEY reg_key = (HKEY) INVALID_HANDLE_VALUE;
+
+	_e_win32_register_mailer_impl (system);
+	
+	if ((returnValue = RegCreateKeyExA (system ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER,
+		client_message, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_key, &dwDisposition)))
+		return;
+	
+	if ((returnValue = RegSetValueExA (reg_key, NULL, 0, REG_SZ, (const BYTE *)CANONICALNAME, strlen (CANONICALNAME) + 1)))
+		return;
+	
+	RegFlushKey (reg_key);
+
+	RegCloseKey (reg_key);
+	
+	if ((returnValue = RegCreateKeyExA (system ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER,
+		mailto_message, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &reg_key, &dwDisposition)))
+		return;
+
+	_e_register_mailto_structure (reg_key);
+	
+	RegFlushKey (reg_key);
+
+	RegCloseKey (reg_key);
+	
+	SendMessageA (HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM)&client_message);
+	SendMessageA (HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM)&mailto_message);
+}
+
+void
+_e_win32_set_default_mailer (void)
+{
+	_e_win32_set_default_mailer_impl (TRUE);
+	_e_win32_set_default_mailer_impl (FALSE);
+}
+
+void
+_e_win32_unset_default_mailer (void)
+{
+	/* TODO: implement */
+}
+
diff --git a/e-util/e-win32-defaults.h b/e-util/e-win32-defaults.h
new file mode 100644
index 0000000..bebc84c
--- /dev/null
+++ b/e-util/e-win32-defaults.h
@@ -0,0 +1,36 @@
+/*
+ * 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/>
+ *
+ *
+ * Authors:
+ *		Fridrich Strba <fridrich strba bluewin ch>
+ *
+ * Copyright (C) 2010 Fridrich Strba
+ *
+ */
+
+#ifndef __E_WIN32_DEFAULTS__
+#define __E_WIN32_DEFAULTS__
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+void	_e_win32_register_mailer (void);
+void	_e_win32_set_default_mailer (void);
+void	_e_win32_unset_default_mailer (void);
+
+G_END_DECLS
+
+#endif /* __E_WIN32_DEFAULTS__ */