wine/dlls/jsproxy/main.c
Hans Leidekker ea8b261abe jsproxy: Validate parameters in InternetInitializeAutoProxyDll and InternetGetProxyInfo.
Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2016-04-20 21:53:21 +09:00

664 lines
18 KiB
C

/*
* Copyright 2014 Hans Leidekker for CodeWeavers
*
* This library 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 2.1 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdarg.h>
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#if defined(__MINGW32__) || defined (_MSC_VER)
# include <ws2tcpip.h>
#else
# define closesocket close
# define ioctlsocket ioctl
#endif
#include "windef.h"
#include "winbase.h"
#ifndef __MINGW32__
#define USE_WS_PREFIX
#endif
#include "winsock2.h"
#include "ws2ipdef.h"
#include "winnls.h"
#include "wininet.h"
#define COBJMACROS
#include "ole2.h"
#include "dispex.h"
#include "activscp.h"
#include "wine/debug.h"
#include "wine/unicode.h"
static HINSTANCE instance;
WINE_DEFAULT_DEBUG_CHANNEL(jsproxy);
static CRITICAL_SECTION cs_jsproxy;
static CRITICAL_SECTION_DEBUG critsect_debug =
{
0, 0, &cs_jsproxy,
{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": cs_jsproxy") }
};
static CRITICAL_SECTION cs_jsproxy = { &critsect_debug, -1, 0, 0, 0, 0 };
static const WCHAR global_funcsW[] = {'g','l','o','b','a','l','_','f','u','n','c','s',0};
static const WCHAR dns_resolveW[] = {'d','n','s','_','r','e','s','o','l','v','e',0};
/******************************************************************
* DllMain (jsproxy.@)
*/
BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
{
switch (reason)
{
case DLL_PROCESS_ATTACH:
instance = hinst;
DisableThreadLibraryCalls( hinst );
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
static inline void *heap_alloc( SIZE_T size )
{
return HeapAlloc( GetProcessHeap(), 0, size );
}
static inline BOOL heap_free( LPVOID mem )
{
return HeapFree( GetProcessHeap(), 0, mem );
}
static inline WCHAR *strdupAW( const char *src, int len )
{
WCHAR *dst = NULL;
if (src)
{
int dst_len = MultiByteToWideChar( CP_ACP, 0, src, len, NULL, 0 );
if ((dst = heap_alloc( (dst_len + 1) * sizeof(WCHAR) )))
{
len = MultiByteToWideChar( CP_ACP, 0, src, len, dst, dst_len );
dst[dst_len] = 0;
}
}
return dst;
}
static inline char *strdupWA( const WCHAR *src )
{
char *dst = NULL;
if (src)
{
int len = WideCharToMultiByte( CP_ACP, 0, src, -1, NULL, 0, NULL, NULL );
if ((dst = heap_alloc( len ))) WideCharToMultiByte( CP_ACP, 0, src, -1, dst, len, NULL, NULL );
}
return dst;
}
static struct pac_script
{
WCHAR *text;
} pac_script;
static struct pac_script *global_script = &pac_script;
/******************************************************************
* InternetDeInitializeAutoProxyDll (jsproxy.@)
*/
BOOL WINAPI InternetDeInitializeAutoProxyDll( LPSTR mime, DWORD reserved )
{
TRACE( "%s, %u\n", debugstr_a(mime), reserved );
EnterCriticalSection( &cs_jsproxy );
heap_free( global_script->text );
global_script->text = NULL;
LeaveCriticalSection( &cs_jsproxy );
return TRUE;
}
static WCHAR *load_script( const char *filename )
{
HANDLE handle;
DWORD size, bytes_read;
char *buffer;
int len;
WCHAR *script = NULL;
handle = CreateFileA( filename, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE) return NULL;
size = GetFileSize( handle, NULL );
if (!(buffer = heap_alloc( size ))) goto done;
if (!ReadFile( handle, buffer, size, &bytes_read, NULL ) || bytes_read != size) goto done;
len = MultiByteToWideChar( CP_ACP, 0, buffer, size, NULL, 0 );
if (!(script = heap_alloc( (len + 1) * sizeof(WCHAR) ))) goto done;
MultiByteToWideChar( CP_ACP, 0, buffer, size, script, len );
script[len] = 0;
done:
CloseHandle( handle );
heap_free( buffer );
return script;
}
/******************************************************************
* InternetInitializeAutoProxyDll (jsproxy.@)
*/
BOOL WINAPI JSPROXY_InternetInitializeAutoProxyDll( DWORD version, LPSTR tmpfile, LPSTR mime,
AutoProxyHelperFunctions *callbacks,
LPAUTO_PROXY_SCRIPT_BUFFER buffer )
{
BOOL ret = FALSE;
TRACE( "%u, %s, %s, %p, %p\n", version, debugstr_a(tmpfile), debugstr_a(mime), callbacks, buffer );
if (callbacks) FIXME( "callbacks not supported\n" );
EnterCriticalSection( &cs_jsproxy );
if (buffer && buffer->dwStructSize == sizeof(*buffer) && buffer->lpszScriptBuffer)
{
DWORD i, len = 0;
for (i = 0; i < buffer->dwScriptBufferSize; i++)
{
if (!buffer->lpszScriptBuffer[i]) break;
len++;
}
if (len == buffer->dwScriptBufferSize)
{
SetLastError( ERROR_INVALID_PARAMETER );
LeaveCriticalSection( &cs_jsproxy );
return FALSE;
}
heap_free( global_script->text );
if ((global_script->text = strdupAW( buffer->lpszScriptBuffer, len ))) ret = TRUE;
}
else
{
heap_free( global_script->text );
if ((global_script->text = load_script( tmpfile ))) ret = TRUE;
}
LeaveCriticalSection( &cs_jsproxy );
return ret;
}
static HRESULT WINAPI dispex_QueryInterface(
IDispatchEx *iface, REFIID riid, void **ppv )
{
*ppv = NULL;
if (IsEqualGUID( riid, &IID_IUnknown ) ||
IsEqualGUID( riid, &IID_IDispatch ) ||
IsEqualGUID( riid, &IID_IDispatchEx ))
*ppv = iface;
else
return E_NOINTERFACE;
return S_OK;
}
static ULONG WINAPI dispex_AddRef(
IDispatchEx *iface )
{
return 2;
}
static ULONG WINAPI dispex_Release(
IDispatchEx *iface )
{
return 1;
}
static HRESULT WINAPI dispex_GetTypeInfoCount(
IDispatchEx *iface, UINT *info )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetTypeInfo(
IDispatchEx *iface, UINT info, LCID lcid, ITypeInfo **type_info )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetIDsOfNames(
IDispatchEx *iface, REFIID riid, LPOLESTR *names, UINT count, LCID lcid, DISPID *id )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_Invoke(
IDispatchEx *iface, DISPID member, REFIID riid, LCID lcid, WORD flags,
DISPPARAMS *params, VARIANT *result, EXCEPINFO *excep, UINT *err )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_DeleteMemberByName(
IDispatchEx *iface, BSTR name, DWORD flags )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_DeleteMemberByDispID(
IDispatchEx *iface, DISPID id )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetMemberProperties(
IDispatchEx *iface, DISPID id, DWORD flags_fetch, DWORD *flags )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetMemberName(
IDispatchEx *iface, DISPID id, BSTR *name )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetNextDispID(
IDispatchEx *iface, DWORD flags, DISPID id, DISPID *next )
{
return E_NOTIMPL;
}
static HRESULT WINAPI dispex_GetNameSpaceParent(
IDispatchEx *iface, IUnknown **unk )
{
return E_NOTIMPL;
}
#define DISPID_GLOBAL_DNSRESOLVE 0x1000
static HRESULT WINAPI dispex_GetDispID(
IDispatchEx *iface, BSTR name, DWORD flags, DISPID *id )
{
if (!strcmpW( name, dns_resolveW ))
{
*id = DISPID_GLOBAL_DNSRESOLVE;
return S_OK;
}
return DISP_E_UNKNOWNNAME;
}
static char *get_computer_name( COMPUTER_NAME_FORMAT format )
{
char *ret;
DWORD size = 0;
GetComputerNameExA( format, NULL, &size );
if (GetLastError() != ERROR_MORE_DATA) return NULL;
if (!(ret = heap_alloc( size ))) return NULL;
if (!GetComputerNameExA( format, ret, &size ))
{
heap_free( ret );
return NULL;
}
return ret;
}
static void printf_addr( const WCHAR *fmt, WCHAR *buf, struct sockaddr_in *addr )
{
sprintfW( buf, fmt,
(unsigned int)(ntohl( addr->sin_addr.s_addr ) >> 24 & 0xff),
(unsigned int)(ntohl( addr->sin_addr.s_addr ) >> 16 & 0xff),
(unsigned int)(ntohl( addr->sin_addr.s_addr ) >> 8 & 0xff),
(unsigned int)(ntohl( addr->sin_addr.s_addr ) & 0xff) );
}
static HRESULT dns_resolve( const WCHAR *hostname, VARIANT *result )
{
#ifdef HAVE_GETADDRINFO
static const WCHAR fmtW[] = {'%','u','.','%','u','.','%','u','.','%','u',0};
WCHAR addr[16];
struct addrinfo *ai, *elem;
char *hostnameA;
int res;
if (hostname[0])
hostnameA = strdupWA( hostname );
else
hostnameA = get_computer_name( ComputerNamePhysicalDnsFullyQualified );
if (!hostnameA) return E_OUTOFMEMORY;
res = getaddrinfo( hostnameA, NULL, NULL, &ai );
heap_free( hostnameA );
if (res) return S_FALSE;
elem = ai;
while (elem && elem->ai_family != AF_INET) elem = elem->ai_next;
if (!elem)
{
freeaddrinfo( ai );
return S_FALSE;
}
printf_addr( fmtW, addr, (struct sockaddr_in *)elem->ai_addr );
freeaddrinfo( ai );
V_VT( result ) = VT_BSTR;
V_BSTR( result ) = SysAllocString( addr );
return S_OK;
#else
FIXME("getaddrinfo not found at build time\n");
return S_FALSE;
#endif
}
static HRESULT WINAPI dispex_InvokeEx(
IDispatchEx *iface, DISPID id, LCID lcid, WORD flags, DISPPARAMS *params,
VARIANT *result, EXCEPINFO *exep, IServiceProvider *caller )
{
if (id == DISPID_GLOBAL_DNSRESOLVE)
{
if (params->cArgs != 1) return DISP_E_BADPARAMCOUNT;
if (V_VT(&params->rgvarg[0]) != VT_BSTR) return DISP_E_BADVARTYPE;
return dns_resolve( V_BSTR(&params->rgvarg[0]), result );
}
return DISP_E_MEMBERNOTFOUND;
}
static const IDispatchExVtbl dispex_vtbl =
{
dispex_QueryInterface,
dispex_AddRef,
dispex_Release,
dispex_GetTypeInfoCount,
dispex_GetTypeInfo,
dispex_GetIDsOfNames,
dispex_Invoke,
dispex_GetDispID,
dispex_InvokeEx,
dispex_DeleteMemberByName,
dispex_DeleteMemberByDispID,
dispex_GetMemberProperties,
dispex_GetMemberName,
dispex_GetNextDispID,
dispex_GetNameSpaceParent
};
static IDispatchEx global_dispex = { &dispex_vtbl };
static HRESULT WINAPI site_QueryInterface(
IActiveScriptSite *iface, REFIID riid, void **ppv )
{
*ppv = NULL;
if (IsEqualGUID( &IID_IUnknown, riid ))
*ppv = iface;
else if (IsEqualGUID( &IID_IActiveScriptSite, riid ))
*ppv = iface;
else
return E_NOINTERFACE;
IUnknown_AddRef( (IUnknown *)*ppv );
return S_OK;
}
static ULONG WINAPI site_AddRef(
IActiveScriptSite *iface )
{
return 2;
}
static ULONG WINAPI site_Release(
IActiveScriptSite *iface )
{
return 1;
}
static HRESULT WINAPI site_GetLCID(
IActiveScriptSite *iface, LCID *lcid )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_GetItemInfo(
IActiveScriptSite *iface, LPCOLESTR name, DWORD mask,
IUnknown **item, ITypeInfo **type_info )
{
if (!strcmpW( name, global_funcsW ) && mask == SCRIPTINFO_IUNKNOWN)
{
*item = (IUnknown *)&global_dispex;
return S_OK;
}
return E_NOTIMPL;
}
static HRESULT WINAPI site_GetDocVersionString(
IActiveScriptSite *iface, BSTR *version )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_OnScriptTerminate(
IActiveScriptSite *iface, const VARIANT *result, const EXCEPINFO *info )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_OnStateChange(
IActiveScriptSite *iface, SCRIPTSTATE state )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_OnScriptError(
IActiveScriptSite *iface, IActiveScriptError *error )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_OnEnterScript(
IActiveScriptSite *iface )
{
return E_NOTIMPL;
}
static HRESULT WINAPI site_OnLeaveScript(
IActiveScriptSite *iface )
{
return E_NOTIMPL;
}
static const IActiveScriptSiteVtbl site_vtbl =
{
site_QueryInterface,
site_AddRef,
site_Release,
site_GetLCID,
site_GetItemInfo,
site_GetDocVersionString,
site_OnScriptTerminate,
site_OnStateChange,
site_OnScriptError,
site_OnEnterScript,
site_OnLeaveScript
};
static IActiveScriptSite script_site = { &site_vtbl };
static BSTR include_pac_utils( const WCHAR *script )
{
static const WCHAR pacjsW[] = {'p','a','c','.','j','s',0};
HMODULE hmod = GetModuleHandleA( "jsproxy.dll" );
HRSRC rsrc;
DWORD size;
const char *data;
BSTR ret;
int len;
if (!(rsrc = FindResourceW( hmod, pacjsW, (LPCWSTR)40 ))) return NULL;
size = SizeofResource( hmod, rsrc );
data = LoadResource( hmod, rsrc );
len = MultiByteToWideChar( CP_ACP, 0, data, size, NULL, 0 );
if (!(ret = SysAllocStringLen( NULL, len + strlenW( script ) + 1 ))) return NULL;
MultiByteToWideChar( CP_ACP, 0, data, size, ret, len );
strcpyW( ret + len, script );
return ret;
}
#ifdef _WIN64
#define IActiveScriptParse_Release IActiveScriptParse64_Release
#define IActiveScriptParse_InitNew IActiveScriptParse64_InitNew
#define IActiveScriptParse_ParseScriptText IActiveScriptParse64_ParseScriptText
#else
#define IActiveScriptParse_Release IActiveScriptParse32_Release
#define IActiveScriptParse_InitNew IActiveScriptParse32_InitNew
#define IActiveScriptParse_ParseScriptText IActiveScriptParse32_ParseScriptText
#endif
static BOOL run_script( const WCHAR *script, const WCHAR *url, const WCHAR *hostname, char **result_str, DWORD *result_len )
{
static const WCHAR jscriptW[] = {'J','S','c','r','i','p','t',0};
static const WCHAR findproxyW[] = {'F','i','n','d','P','r','o','x','y','F','o','r','U','R','L',0};
IActiveScriptParse *parser = NULL;
IActiveScript *engine = NULL;
IDispatch *dispatch = NULL;
BOOL ret = FALSE;
CLSID clsid;
DISPID dispid;
BSTR func = NULL, full_script = NULL;
VARIANT args[2], retval;
DISPPARAMS params;
HRESULT hr, init;
init = CoInitialize( NULL );
hr = CLSIDFromProgID( jscriptW, &clsid );
if (hr != S_OK) goto done;
hr = CoCreateInstance( &clsid, NULL, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER,
&IID_IActiveScript, (void **)&engine );
if (hr != S_OK) goto done;
hr = IActiveScript_QueryInterface( engine, &IID_IActiveScriptParse, (void **)&parser );
if (hr != S_OK) goto done;
hr = IActiveScriptParse_InitNew( parser );
if (hr != S_OK) goto done;
hr = IActiveScript_SetScriptSite( engine, &script_site );
if (hr != S_OK) goto done;
hr = IActiveScript_AddNamedItem( engine, global_funcsW, SCRIPTITEM_GLOBALMEMBERS );
if (hr != S_OK) goto done;
if (!(full_script = include_pac_utils( script ))) goto done;
hr = IActiveScriptParse_ParseScriptText( parser, full_script, NULL, NULL, NULL, 0, 0, 0, NULL, NULL );
if (hr != S_OK) goto done;
hr = IActiveScript_SetScriptState( engine, SCRIPTSTATE_STARTED );
if (hr != S_OK) goto done;
hr = IActiveScript_GetScriptDispatch( engine, NULL, &dispatch );
if (hr != S_OK) goto done;
if (!(func = SysAllocString( findproxyW ))) goto done;
hr = IDispatch_GetIDsOfNames( dispatch, &IID_NULL, &func, 1, LOCALE_SYSTEM_DEFAULT, &dispid );
if (hr != S_OK) goto done;
V_VT( &args[0] ) = VT_BSTR;
V_BSTR( &args[0] ) = SysAllocString( hostname );
V_VT( &args[1] ) = VT_BSTR;
V_BSTR( &args[1] ) = SysAllocString( url );
params.rgvarg = args;
params.rgdispidNamedArgs = NULL;
params.cArgs = 2;
params.cNamedArgs = 0;
hr = IDispatch_Invoke( dispatch, dispid, &IID_NULL, LOCALE_SYSTEM_DEFAULT, DISPATCH_METHOD,
&params, &retval, NULL, NULL );
VariantClear( &args[0] );
VariantClear( &args[1] );
if (hr != S_OK)
{
WARN("script failed 0x%08x\n", hr);
goto done;
}
if ((*result_str = strdupWA( V_BSTR( &retval ) )))
{
TRACE( "result: %s\n", debugstr_a(*result_str) );
*result_len = strlen( *result_str ) + 1;
ret = TRUE;
}
VariantClear( &retval );
done:
SysFreeString( full_script );
SysFreeString( func );
if (dispatch) IDispatch_Release( dispatch );
if (parser) IActiveScriptParse_Release( parser );
if (engine) IActiveScript_Release( engine );
if (SUCCEEDED( init )) CoUninitialize();
return ret;
}
/******************************************************************
* InternetGetProxyInfo (jsproxy.@)
*/
BOOL WINAPI InternetGetProxyInfo( LPCSTR url, DWORD len_url, LPCSTR hostname, DWORD len_hostname, LPSTR *proxy,
LPDWORD len_proxy )
{
WCHAR *urlW = NULL, *hostnameW = NULL;
BOOL ret = FALSE;
TRACE( "%s, %u, %s, %u, %p, %p\n", url, len_url, hostname, len_hostname, proxy, len_proxy );
EnterCriticalSection( &cs_jsproxy );
if (!global_script->text)
{
SetLastError( ERROR_CAN_NOT_COMPLETE );
goto done;
}
if (hostname && len_hostname < strlen( hostname ))
{
SetLastError( ERROR_INSUFFICIENT_BUFFER );
goto done;
}
if (!(urlW = strdupAW( url, -1 ))) goto done;
if (hostname && !(hostnameW = strdupAW( hostname, -1 ))) goto done;
TRACE( "%s\n", debugstr_w(global_script->text) );
ret = run_script( global_script->text, urlW, hostnameW, proxy, len_proxy );
done:
heap_free( hostnameW );
heap_free( urlW );
LeaveCriticalSection( &cs_jsproxy );
return ret;
}