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skype_messaging_win32.c
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skype_messaging_win32.c
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/*
* Skype plugin for libpurple/Pidgin/Adium
* Written by: Eion Robb <[email protected]>
*
* This plugin uses the Skype API to show your contacts in libpurple, and send/receive
* chat messages.
* It requires the Skype program to be running.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_LIBSKYPE_C
# error "Don't compile this file directly. Just compile libskype.c instead."
#endif
#include <windows.h>
#include <tlhelp32.h>
#include <glib.h>
#define SKYPE_WIN32_CLASS_NAME "Skype-libpurple-Joiner"
static LRESULT APIENTRY Skype_WindowProc(HWND hWindow, UINT uiMessage,
WPARAM uiParam, LPARAM ulParam);
static void win32_message_loop(void);
HINSTANCE hInit_ProcessHandle = NULL;
static UINT uiGlobal_MsgID_SkypeControlAPIAttach = 0;
static UINT uiGlobal_MsgID_SkypeControlAPIDiscover = 0;
static HWND hInit_MainWindowHandle = NULL;
static HWND hGlobal_SkypeAPIWindowHandle = NULL;
HANDLE hEvent = NULL;
static gboolean
skype_connect()
{
int i = 0;
PDWORD_PTR sendMessageResult = NULL;
if (!uiGlobal_MsgID_SkypeControlAPIAttach)
uiGlobal_MsgID_SkypeControlAPIAttach = RegisterWindowMessage("SkypeControlAPIAttach");
if (!uiGlobal_MsgID_SkypeControlAPIDiscover)
uiGlobal_MsgID_SkypeControlAPIDiscover = RegisterWindowMessage("SkypeControlAPIDiscover");
if (!hInit_ProcessHandle)
hInit_ProcessHandle = (HINSTANCE)OpenProcess( PROCESS_DUP_HANDLE, FALSE, GetCurrentProcessId());
skype_debug_info("skype_win32", "ProcessId %d\n", GetCurrentProcessId());
skype_debug_info("skype_win32", "hInit_ProcessHandle %d\n", hInit_ProcessHandle);
g_thread_create((GThreadFunc)win32_message_loop, NULL, FALSE, NULL);
while(hInit_MainWindowHandle == NULL)
{
Sleep(10);
}
skype_debug_info("skype_win32", "hInit_MainWindowHandle %d\n", hInit_MainWindowHandle);
skype_debug_info("skype_win32", "Sending broadcast message\n");
SendMessageTimeout( HWND_BROADCAST, uiGlobal_MsgID_SkypeControlAPIDiscover, (WPARAM)hInit_MainWindowHandle, 0, SMTO_NORMAL, 1000, sendMessageResult);
skype_debug_info("skype_win32", "Broadcast message sent\n");
while(hGlobal_SkypeAPIWindowHandle == NULL && i < 100)
{
i++;
Sleep(10);
}
if (hGlobal_SkypeAPIWindowHandle == NULL)
return FALSE;
return TRUE;
}
static void
win32_message_loop(void)
{
MSG msg;
WNDCLASS oWindowClass;
int classRegistration;
static gboolean message_loop_started = FALSE;
if (message_loop_started)
return;
message_loop_started = TRUE;
oWindowClass.style = CS_HREDRAW|CS_VREDRAW;
oWindowClass.lpfnWndProc = (WNDPROC)&Skype_WindowProc;
oWindowClass.cbClsExtra = 0;
oWindowClass.cbWndExtra = 0;
oWindowClass.hInstance = hInit_ProcessHandle;
oWindowClass.hIcon = NULL;
oWindowClass.hCursor = NULL;
oWindowClass.hbrBackground = NULL;
oWindowClass.lpszMenuName = NULL;
oWindowClass.lpszClassName = SKYPE_WIN32_CLASS_NAME;
classRegistration = RegisterClass(&oWindowClass);
hInit_MainWindowHandle = CreateWindow(SKYPE_WIN32_CLASS_NAME, SKYPE_WIN32_CLASS_NAME,
WS_OVERLAPPEDWINDOW, 0, 0, 0, 0,
NULL, NULL, hInit_ProcessHandle, NULL);
ShowWindow(hInit_MainWindowHandle, SW_HIDE);
UpdateWindow(hInit_MainWindowHandle);
while (GetMessage(&msg, NULL, 0, 0) != 0)
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
skype_debug_info("skype_win32", "Finished message loop\n");
DestroyWindow(hInit_MainWindowHandle);
hInit_MainWindowHandle = NULL;
message_loop_started = FALSE;
}
static void
skype_disconnect()
{
UnregisterClass(SKYPE_WIN32_CLASS_NAME, hInit_ProcessHandle);
CloseHandle(hInit_ProcessHandle);
hInit_ProcessHandle = NULL;
if (hInit_MainWindowHandle != NULL)
{
//tell win32_message_loop() thread to die gracefully
PostMessage(hInit_MainWindowHandle, WM_QUIT, 0, 0);
}
}
static void
send_message(const char* message)
{
int message_num;
char *error_return;
COPYDATASTRUCT oCopyData;
oCopyData.dwData = 0;
oCopyData.lpData = (void *)message;
oCopyData.cbData = strlen(message) + 1;
if (SendMessage( hGlobal_SkypeAPIWindowHandle, WM_COPYDATA,
(WPARAM)hInit_MainWindowHandle, (LPARAM)&oCopyData) == FALSE)
{
hGlobal_SkypeAPIWindowHandle = NULL;
//There was an error
if (message[0] == '#')
{
//And we're expecting a response
sscanf(message, "#%d ", &message_num);
error_return = g_strdup_printf("#%d ERROR WIN32", message_num);
g_thread_create((GThreadFunc)skype_message_received, (void *)error_return, FALSE, NULL);
}
}
}
static LRESULT CALLBACK
Skype_WindowProc(HWND hWindow, UINT uiMessage, WPARAM uiParam, LPARAM ulParam)
{
if(uiMessage == WM_COPYDATA && hGlobal_SkypeAPIWindowHandle == (HWND)uiParam)
{
PCOPYDATASTRUCT poCopyData = (PCOPYDATASTRUCT)ulParam;
skype_message_received(g_strdup(poCopyData->lpData));
return 1;
} else if (uiMessage == uiGlobal_MsgID_SkypeControlAPIAttach) {
skype_debug_info("skype_win32", "Attached process %d %d\n", uiParam, ulParam);
if (ulParam == 0)
{
skype_debug_info("skype_win32", "Attach success\n");
hGlobal_SkypeAPIWindowHandle = (HWND)uiParam;
//TODO send a message asking what the skype username is, to work with multiple skypes
}
else if (ulParam == 1)
skype_debug_info("skype_win32", "Pending auth\n");
else if (ulParam == 2)
skype_debug_info("skype_win32", "Refused\n");
else if (ulParam == 3)
skype_debug_info("skype_win32", "Not ready\n");
else if (ulParam == 0x8001)
skype_debug_info("skype_win32", "Skype became ready\n");
return 1;
}
return DefWindowProc(hWindow, uiMessage, uiParam, ulParam);
}
static void
hide_skype()
{
//don't need to since SILENT_MODE ON works
return;
}
static gboolean
exec_skype()
{
#ifdef INSTANTBIRD
return FALSE;
#else
DWORD size = 0;
gchar *path, *pathtemp;
HKEY regkey;
gboolean success = FALSE;
//HKCU\Software\Skype\Phone\SkypePath or HKLM\Software\Skype\Phone\SkypePath
RegOpenKey(HKEY_CURRENT_USER, "Software\\Skype\\Phone", ®key);
RegQueryValueEx(regkey, "SkypePath", NULL, NULL, NULL, &size);
if (size != 0)
{
path = g_new(gchar, size);
RegQueryValueEx(regkey, "SkypePath", NULL, NULL, (LPBYTE)path, &size);
} else {
RegOpenKey(HKEY_LOCAL_MACHINE, "Software\\Skype\\Phone", ®key);
RegQueryValueEx(regkey, "SkypePath", NULL, NULL, NULL, &size);
if (size != 0)
{
path = g_new(gchar, size);
RegQueryValueEx(regkey, "Software\\Skype\\Phone\\SkypePath", NULL, NULL, (LPBYTE)path, &size);
} else if (g_file_test("..\\Skype.Portable\\skype-start.exe", G_FILE_TEST_EXISTS))
{
path = g_strdup("..\\Skype.Portable\\skype-start.exe");
} else {
path = g_strdup("C:\\Program Files\\Skype\\Phone\\Skype.exe");
}
}
pathtemp = g_strconcat("\"", path, "\" /nosplash /minimized", NULL);
skype_debug_info("skype_win32", "Path to Skype: %s\n", pathtemp);
g_free(path);
success = g_spawn_command_line_async(pathtemp, NULL);
g_free(pathtemp);
return success;
#endif
}
static gboolean
is_skype_running()
{
#ifdef _TLHELP32_H
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
HANDLE temp = NULL;
PROCESSENTRY32 entry;
entry.dwSize = sizeof(PROCESSENTRY32);
Process32First(snapshot, &entry);
do {
if (g_str_equal("Skype.exe", entry.szExeFile))
{
temp = OpenProcess(PROCESS_ALL_ACCESS, FALSE, entry.th32ProcessID);
CloseHandle(snapshot);
return TRUE;
}
} while (Process32Next(snapshot, &entry));
CloseHandle(snapshot);
#endif
return FALSE;
}