mshtml: Removed duplicate condition (Coverity).
[wine] / dlls / mshtml / main.c
1 /*
2  *    MSHTML Class Factory
3  *
4  * Copyright 2002 Lionel Ulmer
5  * Copyright 2003 Mike McCormack
6  * Copyright 2005 Jacek Caban
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with this library; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21  */
22
23 #include <stdarg.h>
24 #include <stdio.h>
25
26 #define COBJMACROS
27
28 #include "windef.h"
29 #include "winbase.h"
30 #include "winuser.h"
31 #include "winreg.h"
32 #include "ole2.h"
33 #include "advpub.h"
34 #include "shlwapi.h"
35 #include "optary.h"
36 #include "rpcproxy.h"
37 #include "shlguid.h"
38
39 #include "wine/debug.h"
40
41 #define INIT_GUID
42 #include "mshtml_private.h"
43 #include "resource.h"
44
45 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
46
47 HINSTANCE hInst;
48 DWORD mshtml_tls = TLS_OUT_OF_INDEXES;
49
50 static HINSTANCE shdoclc = NULL;
51 static HDC display_dc;
52 static WCHAR *status_strings[IDS_STATUS_LAST-IDS_STATUS_FIRST+1];
53
54 static void thread_detach(void)
55 {
56     thread_data_t *thread_data;
57
58     thread_data = get_thread_data(FALSE);
59     if(!thread_data)
60         return;
61
62     if(thread_data->thread_hwnd)
63         DestroyWindow(thread_data->thread_hwnd);
64
65     heap_free(thread_data);
66 }
67
68 static void free_strings(void)
69 {
70     int i;
71     for(i = 0; i < sizeof(status_strings)/sizeof(*status_strings); i++)
72         heap_free(status_strings[i]);
73 }
74
75 static void process_detach(void)
76 {
77     close_gecko();
78     release_typelib();
79
80     if(shdoclc)
81         FreeLibrary(shdoclc);
82     if(mshtml_tls != TLS_OUT_OF_INDEXES)
83         TlsFree(mshtml_tls);
84     if(display_dc)
85         DeleteObject(display_dc);
86
87     free_strings();
88 }
89
90 void set_statustext(HTMLDocumentObj* doc, INT id, LPCWSTR arg)
91 {
92     int index = id - IDS_STATUS_FIRST;
93     WCHAR *p = status_strings[index];
94     DWORD len;
95
96     if(!doc->frame)
97         return;
98
99     if(!p) {
100         len = 255;
101         p = heap_alloc(len * sizeof(WCHAR));
102         len = LoadStringW(hInst, id, p, len) + 1;
103         p = heap_realloc(p, len * sizeof(WCHAR));
104         if(InterlockedCompareExchangePointer((void**)&status_strings[index], p, NULL)) {
105             heap_free(p);
106             p = status_strings[index];
107         }
108     }
109
110     if(arg) {
111         WCHAR *buf;
112
113         len = lstrlenW(p) + lstrlenW(arg) - 1;
114         buf = heap_alloc(len * sizeof(WCHAR));
115
116         snprintfW(buf, len, p, arg);
117
118         p = buf;
119     }
120
121     IOleInPlaceFrame_SetStatusText(doc->frame, p);
122
123     if(arg)
124         heap_free(p);
125 }
126
127 HRESULT do_query_service(IUnknown *unk, REFGUID guid_service, REFIID riid, void **ppv)
128 {
129     IServiceProvider *sp;
130     HRESULT hres;
131
132     hres = IUnknown_QueryInterface(unk, &IID_IServiceProvider, (void**)&sp);
133     if(FAILED(hres))
134         return hres;
135
136     hres = IServiceProvider_QueryService(sp, guid_service, riid, ppv);
137     IServiceProvider_Release(sp);
138     return hres;
139 }
140
141 HINSTANCE get_shdoclc(void)
142 {
143     static const WCHAR wszShdoclc[] =
144         {'s','h','d','o','c','l','c','.','d','l','l',0};
145
146     if(shdoclc)
147         return shdoclc;
148
149     return shdoclc = LoadLibraryExW(wszShdoclc, NULL, LOAD_LIBRARY_AS_DATAFILE);
150 }
151
152 HDC get_display_dc(void)
153 {
154     static const WCHAR displayW[] = {'D','I','S','P','L','A','Y',0};
155
156     if(!display_dc) {
157         HDC hdc;
158
159         hdc = CreateICW(displayW, NULL, NULL, NULL);
160         if(InterlockedCompareExchangePointer((void**)&display_dc, hdc, NULL))
161             DeleteObject(hdc);
162     }
163
164     return display_dc;
165 }
166
167 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
168 {
169     switch(fdwReason) {
170     case DLL_PROCESS_ATTACH:
171         hInst = hInstDLL;
172         break;
173     case DLL_PROCESS_DETACH:
174         process_detach();
175         break;
176     case DLL_THREAD_DETACH:
177         thread_detach();
178         break;
179     }
180     return TRUE;
181 }
182
183 /***********************************************************
184  *    ClassFactory implementation
185  */
186 typedef HRESULT (*CreateInstanceFunc)(IUnknown*,REFIID,void**);
187 typedef struct {
188     IClassFactory IClassFactory_iface;
189     LONG ref;
190     CreateInstanceFunc fnCreateInstance;
191 } ClassFactory;
192
193 static inline ClassFactory *impl_from_IClassFactory(IClassFactory *iface)
194 {
195     return CONTAINING_RECORD(iface, ClassFactory, IClassFactory_iface);
196 }
197
198 static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFGUID riid, void **ppvObject)
199 {
200     if(IsEqualGUID(&IID_IClassFactory, riid) || IsEqualGUID(&IID_IUnknown, riid)) {
201         IClassFactory_AddRef(iface);
202         *ppvObject = iface;
203         return S_OK;
204     }
205
206     WARN("not supported iid %s\n", debugstr_guid(riid));
207     *ppvObject = NULL;
208     return E_NOINTERFACE;
209 }
210
211 static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
212 {
213     ClassFactory *This = impl_from_IClassFactory(iface);
214     ULONG ref = InterlockedIncrement(&This->ref);
215     TRACE("(%p) ref = %u\n", This, ref);
216     return ref;
217 }
218
219 static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
220 {
221     ClassFactory *This = impl_from_IClassFactory(iface);
222     ULONG ref = InterlockedDecrement(&This->ref);
223
224     TRACE("(%p) ref = %u\n", This, ref);
225
226     if(!ref) {
227         heap_free(This);
228     }
229
230     return ref;
231 }
232
233 static HRESULT WINAPI ClassFactory_CreateInstance(IClassFactory *iface, IUnknown *pUnkOuter,
234         REFIID riid, void **ppvObject)
235 {
236     ClassFactory *This = impl_from_IClassFactory(iface);
237     return This->fnCreateInstance(pUnkOuter, riid, ppvObject);
238 }
239
240 static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL dolock)
241 {
242     TRACE("(%p)->(%x)\n", iface, dolock);
243
244     /* We never unload the DLL. See DllCanUnloadNow(). */
245     return S_OK;
246 }
247
248 static const IClassFactoryVtbl HTMLClassFactoryVtbl = {
249     ClassFactory_QueryInterface,
250     ClassFactory_AddRef,
251     ClassFactory_Release,
252     ClassFactory_CreateInstance,
253     ClassFactory_LockServer
254 };
255
256 static HRESULT ClassFactory_Create(REFIID riid, void **ppv, CreateInstanceFunc fnCreateInstance)
257 {
258     ClassFactory *ret = heap_alloc(sizeof(ClassFactory));
259     HRESULT hres;
260
261     ret->IClassFactory_iface.lpVtbl = &HTMLClassFactoryVtbl;
262     ret->ref = 0;
263     ret->fnCreateInstance = fnCreateInstance;
264
265     hres = IClassFactory_QueryInterface(&ret->IClassFactory_iface, riid, ppv);
266     if(FAILED(hres)) {
267         heap_free(ret);
268         *ppv = NULL;
269     }
270     return hres;
271 }
272
273 /******************************************************************
274  *              DllGetClassObject (MSHTML.@)
275  */
276 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
277 {
278     if(IsEqualGUID(&CLSID_HTMLDocument, rclsid)) {
279         TRACE("(CLSID_HTMLDocument %s %p)\n", debugstr_guid(riid), ppv);
280         return ClassFactory_Create(riid, ppv, HTMLDocument_Create);
281     }else if(IsEqualGUID(&CLSID_AboutProtocol, rclsid)) {
282         TRACE("(CLSID_AboutProtocol %s %p)\n", debugstr_guid(riid), ppv);
283         return ProtocolFactory_Create(rclsid, riid, ppv);
284     }else if(IsEqualGUID(&CLSID_JSProtocol, rclsid)) {
285         TRACE("(CLSID_JSProtocol %s %p)\n", debugstr_guid(riid), ppv);
286         return ProtocolFactory_Create(rclsid, riid, ppv);
287     }else if(IsEqualGUID(&CLSID_MailtoProtocol, rclsid)) {
288         TRACE("(CLSID_MailtoProtocol %s %p)\n", debugstr_guid(riid), ppv);
289         return ProtocolFactory_Create(rclsid, riid, ppv);
290     }else if(IsEqualGUID(&CLSID_ResProtocol, rclsid)) {
291         TRACE("(CLSID_ResProtocol %s %p)\n", debugstr_guid(riid), ppv);
292         return ProtocolFactory_Create(rclsid, riid, ppv);
293     }else if(IsEqualGUID(&CLSID_SysimageProtocol, rclsid)) {
294         TRACE("(CLSID_SysimageProtocol %s %p)\n", debugstr_guid(riid), ppv);
295         return ProtocolFactory_Create(rclsid, riid, ppv);
296     }else if(IsEqualGUID(&CLSID_HTMLLoadOptions, rclsid)) {
297         TRACE("(CLSID_HTMLLoadOptions %s %p)\n", debugstr_guid(riid), ppv);
298         return ClassFactory_Create(riid, ppv, HTMLLoadOptions_Create);
299     }
300
301     FIXME("Unknown class %s\n", debugstr_guid(rclsid));
302     return CLASS_E_CLASSNOTAVAILABLE;
303 }
304
305 /******************************************************************
306  *              DllCanUnloadNow (MSHTML.@)
307  */
308 HRESULT WINAPI DllCanUnloadNow(void)
309 {
310     TRACE("()\n");
311     /* The cost of keeping this DLL in memory is small. */
312     return S_FALSE;
313 }
314
315 /***********************************************************************
316  *          RunHTMLApplication (MSHTML.@)
317  *
318  * Appears to have the same prototype as WinMain.
319  */
320 HRESULT WINAPI RunHTMLApplication( HINSTANCE hinst, HINSTANCE hPrevInst,
321                                LPSTR szCmdLine, INT nCmdShow )
322 {
323     FIXME("%p %p %s %d\n", hinst, hPrevInst, debugstr_a(szCmdLine), nCmdShow );
324     return 0;
325 }
326
327 /***********************************************************************
328  *          RNIGetCompatibleVersion (MSHTML.@)
329  */
330 DWORD WINAPI RNIGetCompatibleVersion(void)
331 {
332     TRACE("()\n");
333     return 0x20000;
334 }
335
336 /***********************************************************************
337  *          DllInstall (MSHTML.@)
338  */
339 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
340 {
341     FIXME("stub %d %s: returning S_OK\n", bInstall, debugstr_w(cmdline));
342     return S_OK;
343 }
344
345 /***********************************************************************
346  *          ShowHTMLDialog (MSHTML.@)
347  */
348 HRESULT WINAPI ShowHTMLDialog(HWND hwndParent, IMoniker *pMk, VARIANT *pvarArgIn,
349         WCHAR *pchOptions, VARIANT *pvarArgOut)
350 {
351     FIXME("(%p %p %p %s %p)\n", hwndParent, pMk, pvarArgIn, debugstr_w(pchOptions), pvarArgOut);
352     return E_NOTIMPL;
353 }
354
355 /***********************************************************************
356  *          PrintHTML (MSHTML.@)
357  */
358 void WINAPI PrintHTML(HWND hwnd, HINSTANCE handle, LPCSTR cmdline, INT show)
359 {
360     FIXME("(%p %p %s %x)\n", hwnd, handle, debugstr_a(cmdline), show);
361 }
362
363 DEFINE_GUID(CLSID_CBackgroundPropertyPage, 0x3050F232, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
364 DEFINE_GUID(CLSID_CCDAnchorPropertyPage, 0x3050F1FC, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
365 DEFINE_GUID(CLSID_CCDGenericPropertyPage, 0x3050F17F, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
366 DEFINE_GUID(CLSID_CDwnBindInfo, 0x3050F3C2, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
367 DEFINE_GUID(CLSID_CHiFiUses, 0x5AAF51B3, 0xB1F0, 0x11D1, 0xB6,0xAB, 0x00,0xA0,0xC9,0x08,0x33,0xE9);
368 DEFINE_GUID(CLSID_CHtmlComponentConstructor, 0x3050F4F8, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
369 DEFINE_GUID(CLSID_CInlineStylePropertyPage, 0x3050F296, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
370 DEFINE_GUID(CLSID_CPeerHandler, 0x5AAF51B2, 0xB1F0, 0x11D1, 0xB6,0xAB, 0x00,0xA0,0xC9,0x08,0x33,0xE9);
371 DEFINE_GUID(CLSID_CRecalcEngine, 0x3050F499, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
372 DEFINE_GUID(CLSID_CSvrOMUses, 0x3050F4F0, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
373 DEFINE_GUID(CLSID_CrSource, 0x65014010, 0x9F62, 0x11D1, 0xA6,0x51, 0x00,0x60,0x08,0x11,0xD5,0xCE);
374 DEFINE_GUID(CLSID_ExternalFrameworkSite, 0x3050F163, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
375 DEFINE_GUID(CLSID_HTADocument, 0x3050F5C8, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
376 DEFINE_GUID(CLSID_HTMLPluginDocument, 0x25336921, 0x03F9, 0x11CF, 0x8F,0xD0, 0x00,0xAA,0x00,0x68,0x6F,0x13);
377 DEFINE_GUID(CLSID_HTMLPopup, 0x3050F667, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
378 DEFINE_GUID(CLSID_HTMLPopupDoc, 0x3050F67D, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
379 DEFINE_GUID(CLSID_HTMLServerDoc, 0x3050F4E7, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
380 DEFINE_GUID(CLSID_IImageDecodeFilter, 0x607FD4E8, 0x0A03, 0x11D1, 0xAB,0x1D, 0x00,0xC0,0x4F,0xC9,0xB3,0x04);
381 DEFINE_GUID(CLSID_IImgCtx, 0x3050F3D6, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
382 DEFINE_GUID(CLSID_IntDitherer, 0x05F6FE1A, 0xECEF, 0x11D0, 0xAA,0xE7, 0x00,0xC0,0x4F,0xC9,0xB3,0x04);
383 DEFINE_GUID(CLSID_MHTMLDocument, 0x3050F3D9, 0x98B5, 0x11CF, 0xBB,0x82, 0x00,0xAA,0x00,0xBD,0xCE,0x0B);
384 DEFINE_GUID(CLSID_TridentAPI, 0x429AF92C, 0xA51F, 0x11D2, 0x86,0x1E, 0x00,0xC0,0x4F,0xA3,0x5C,0x89);
385
386 #define INF_SET_ID(id)            \
387     do                            \
388     {                             \
389         static CHAR name[] = #id; \
390                                   \
391         pse[i].pszName = name;    \
392         clsids[i++] = &id;        \
393     } while (0)
394
395 #define INF_SET_CLSID(clsid) INF_SET_ID(CLSID_ ## clsid)
396
397 static HRESULT register_server(BOOL do_register)
398 {
399     HRESULT hres;
400     HMODULE hAdvpack;
401     HRESULT (WINAPI *pRegInstall)(HMODULE hm, LPCSTR pszSection, const STRTABLEA* pstTable);
402     STRTABLEA strtable;
403     STRENTRYA pse[35];
404     static CLSID const *clsids[35];
405     unsigned int i = 0;
406
407     static const WCHAR wszAdvpack[] = {'a','d','v','p','a','c','k','.','d','l','l',0};
408
409     TRACE("(%x)\n", do_register);
410
411     INF_SET_CLSID(AboutProtocol);
412     INF_SET_CLSID(CAnchorBrowsePropertyPage);
413     INF_SET_CLSID(CBackgroundPropertyPage);
414     INF_SET_CLSID(CCDAnchorPropertyPage);
415     INF_SET_CLSID(CCDGenericPropertyPage);
416     INF_SET_CLSID(CDocBrowsePropertyPage);
417     INF_SET_CLSID(CDwnBindInfo);
418     INF_SET_CLSID(CHiFiUses);
419     INF_SET_CLSID(CHtmlComponentConstructor);
420     INF_SET_CLSID(CImageBrowsePropertyPage);
421     INF_SET_CLSID(CInlineStylePropertyPage);
422     INF_SET_CLSID(CPeerHandler);
423     INF_SET_CLSID(CRecalcEngine);
424     INF_SET_CLSID(CSvrOMUses);
425     INF_SET_CLSID(CrSource);
426     INF_SET_CLSID(ExternalFrameworkSite);
427     INF_SET_CLSID(HTADocument);
428     INF_SET_CLSID(HTMLDocument);
429     INF_SET_CLSID(HTMLLoadOptions);
430     INF_SET_CLSID(HTMLPluginDocument);
431     INF_SET_CLSID(HTMLPopup);
432     INF_SET_CLSID(HTMLPopupDoc);
433     INF_SET_CLSID(HTMLServerDoc);
434     INF_SET_CLSID(HTMLWindowProxy);
435     INF_SET_CLSID(IImageDecodeFilter);
436     INF_SET_CLSID(IImgCtx);
437     INF_SET_CLSID(IntDitherer);
438     INF_SET_CLSID(JSProtocol);
439     INF_SET_CLSID(MHTMLDocument);
440     INF_SET_CLSID(MailtoProtocol);
441     INF_SET_CLSID(ResProtocol);
442     INF_SET_CLSID(Scriptlet);
443     INF_SET_CLSID(SysimageProtocol);
444     INF_SET_CLSID(TridentAPI);
445     INF_SET_ID(LIBID_MSHTML);
446
447     for(i=0; i < sizeof(pse)/sizeof(pse[0]); i++) {
448         pse[i].pszValue = heap_alloc(39);
449         sprintf(pse[i].pszValue, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
450                 clsids[i]->Data1, clsids[i]->Data2, clsids[i]->Data3, clsids[i]->Data4[0],
451                 clsids[i]->Data4[1], clsids[i]->Data4[2], clsids[i]->Data4[3], clsids[i]->Data4[4],
452                 clsids[i]->Data4[5], clsids[i]->Data4[6], clsids[i]->Data4[7]);
453     }
454
455     strtable.cEntries = sizeof(pse)/sizeof(pse[0]);
456     strtable.pse = pse;
457
458     hAdvpack = LoadLibraryW(wszAdvpack);
459     pRegInstall = (void *)GetProcAddress(hAdvpack, "RegInstall");
460
461     hres = pRegInstall(hInst, do_register ? "RegisterDll" : "UnregisterDll", &strtable);
462
463     for(i=0; i < sizeof(pse)/sizeof(pse[0]); i++)
464         heap_free(pse[i].pszValue);
465
466     if(FAILED(hres))
467         ERR("RegInstall failed: %08x\n", hres);
468
469     return hres;
470 }
471
472 #undef INF_SET_CLSID
473 #undef INF_SET_ID
474
475 /***********************************************************************
476  *          DllRegisterServer (MSHTML.@)
477  */
478 HRESULT WINAPI DllRegisterServer(void)
479 {
480     HRESULT hres;
481
482     hres = __wine_register_resources( hInst );
483     if(SUCCEEDED(hres))
484         hres = register_server(TRUE);
485     if(SUCCEEDED(hres))
486         load_gecko();
487
488     return hres;
489 }
490
491 /***********************************************************************
492  *          DllUnregisterServer (MSHTML.@)
493  */
494 HRESULT WINAPI DllUnregisterServer(void)
495 {
496     HRESULT hres = __wine_unregister_resources( hInst );
497     if(SUCCEEDED(hres)) hres = register_server(FALSE);
498     return hres;
499 }
500
501 const char *debugstr_variant(const VARIANT *v)
502 {
503     if(!v)
504         return "(null)";
505
506     switch(V_VT(v)) {
507     case VT_EMPTY:
508         return "{VT_EMPTY}";
509     case VT_NULL:
510         return "{VT_NULL}";
511     case VT_I2:
512         return wine_dbg_sprintf("{VT_I2: %d}", V_I2(v));
513     case VT_I4:
514         return wine_dbg_sprintf("{VT_I4: %d}", V_I4(v));
515     case VT_R8:
516         return wine_dbg_sprintf("{VT_R8: %lf}", V_R8(v));
517     case VT_BSTR:
518         return wine_dbg_sprintf("{VT_BSTR: %s}", debugstr_w(V_BSTR(v)));
519     case VT_DISPATCH:
520         return wine_dbg_sprintf("{VT_DISPATCH: %p}", V_DISPATCH(v));
521     case VT_ERROR:
522         return wine_dbg_sprintf("{VT_ERROR: %08x}", V_ERROR(v));
523     case VT_BOOL:
524         return wine_dbg_sprintf("{VT_BOOL: %x}", V_BOOL(v));
525     case VT_UINT:
526         return wine_dbg_sprintf("{VT_UINT: %u}", V_UINT(v));
527     default:
528         return wine_dbg_sprintf("{vt %d}", V_VT(v));
529     }
530 }