dlls/mshtml/npplugin.c

   1 /*
   2  * Copyright 2010 Jacek Caban for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29 #include "shlobj.h"
  30
  31 #include "mshtml_private.h"
  32 #include "pluginhost.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(mshtml);
  37
  38 /* Parts of npapi.h */
  39
  40 #define NPERR_BASE                         0
  41 #define NPERR_NO_ERROR                    (NPERR_BASE + 0)
  42 #define NPERR_GENERIC_ERROR               (NPERR_BASE + 1)
  43 #define NPERR_INVALID_INSTANCE_ERROR      (NPERR_BASE + 2)
  44 #define NPERR_INVALID_FUNCTABLE_ERROR     (NPERR_BASE + 3)
  45 #define NPERR_MODULE_LOAD_FAILED_ERROR    (NPERR_BASE + 4)
  46 #define NPERR_OUT_OF_MEMORY_ERROR         (NPERR_BASE + 5)
  47 #define NPERR_INVALID_PLUGIN_ERROR        (NPERR_BASE + 6)
  48 #define NPERR_INVALID_PLUGIN_DIR_ERROR    (NPERR_BASE + 7)
  49 #define NPERR_INCOMPATIBLE_VERSION_ERROR  (NPERR_BASE + 8)
  50 #define NPERR_INVALID_PARAM               (NPERR_BASE + 9)
  51 #define NPERR_INVALID_URL                 (NPERR_BASE + 10)
  52 #define NPERR_FILE_NOT_FOUND              (NPERR_BASE + 11)
  53 #define NPERR_NO_DATA                     (NPERR_BASE + 12)
  54 #define NPERR_STREAM_NOT_SEEKABLE         (NPERR_BASE + 13)
  55
  56 /* Parts of npfunctions.h */
  57
  58 typedef NPError (CDECL *NPP_NewProcPtr)(NPMIMEType,NPP,UINT16,INT16,char**,char**,NPSavedData*);
  59 typedef NPError (CDECL *NPP_DestroyProcPtr)(NPP,NPSavedData**);
  60 typedef NPError (CDECL *NPP_SetWindowProcPtr)(NPP,NPWindow*);
  61 typedef NPError (CDECL *NPP_NewStreamProcPtr)(NPP,NPMIMEType,NPStream*,NPBool,UINT16*);
  62 typedef NPError (CDECL *NPP_DestroyStreamProcPtr)(NPP,NPStream*,NPReason);
  63 typedef INT32 (CDECL *NPP_WriteReadyProcPtr)(NPP,NPStream*);
  64 typedef INT32 (CDECL *NPP_WriteProcPtr)(NPP,NPStream*,INT32,INT32,void*);
  65 typedef void (CDECL *NPP_StreamAsFileProcPtr)(NPP,NPStream*,const char*);
  66 typedef void (CDECL *NPP_PrintProcPtr)(NPP,NPPrint*);
  67 typedef INT16 (CDECL *NPP_HandleEventProcPtr)(NPP,void*);
  68 typedef void (CDECL *NPP_URLNotifyProcPtr)(NPP,const char*,NPReason,void*);
  69 typedef NPError (CDECL *NPP_GetValueProcPtr)(NPP,NPPVariable,void*);
  70 typedef NPError (CDECL *NPP_SetValueProcPtr)(NPP,NPNVariable,void*);
  71 typedef NPBool (CDECL *NPP_GotFocusPtr)(NPP,NPFocusDirection);
  72 typedef void (CDECL *NPP_LostFocusPtr)(NPP);
  73
  74 typedef struct _NPPluginFuncs {
  75     UINT16 size;
  76     UINT16 version;
  77     NPP_NewProcPtr newp;
  78     NPP_DestroyProcPtr destroy;
  79     NPP_SetWindowProcPtr setwindow;
  80     NPP_NewStreamProcPtr newstream;
  81     NPP_DestroyStreamProcPtr destroystream;
  82     NPP_StreamAsFileProcPtr asfile;
  83     NPP_WriteReadyProcPtr writeready;
  84     NPP_WriteProcPtr write;
  85     NPP_PrintProcPtr print;
  86     NPP_HandleEventProcPtr event;
  87     NPP_URLNotifyProcPtr urlnotify;
  88     void *javaClass;
  89     NPP_GetValueProcPtr getvalue;
  90     NPP_SetValueProcPtr setvalue;
  91     NPP_GotFocusPtr gotfocus;
  92     NPP_LostFocusPtr lostfocus;
  93 } NPPluginFuncs;
  94
  95 static nsIDOMElement *get_dom_element(NPP instance)
  96 {
  97     nsISupports *instance_unk = (nsISupports*)instance->ndata;
  98     nsIPluginInstance *plugin_instance;
  99     nsIPluginInstanceOwner *owner;
 100     nsIPluginTagInfo *tag_info;
 101     nsIDOMElement *elem;
 102     nsresult nsres;
 103
 104     nsres = nsISupports_QueryInterface(instance_unk, &IID_nsIPluginInstance, (void**)&plugin_instance);
 105     if(NS_FAILED(nsres))
 106         return NULL;
 107
 108     nsres = nsIPluginInstance_GetOwner(plugin_instance, &owner);
 109     nsIPluginInstance_Release(instance_unk);
 110     if(NS_FAILED(nsres) || !owner)
 111         return NULL;
 112
 113     nsres = nsISupports_QueryInterface(owner, &IID_nsIPluginTagInfo, (void**)&tag_info);
 114     nsISupports_Release(owner);
 115     if(NS_FAILED(nsres))
 116         return NULL;
 117
 118     nsres = nsIPluginTagInfo_GetDOMElement(tag_info, &elem);
 119     nsIPluginTagInfo_Release(tag_info);
 120     if(NS_FAILED(nsres))
 121         return NULL;
 122
 123     return elem;
 124 }
 125
 126 static HTMLWindow *get_elem_window(nsIDOMElement *elem)
 127 {
 128     nsIDOMWindow *nswindow;
 129     nsIDOMDocument *nsdoc;
 130     HTMLWindow *window;
 131     nsresult nsres;
 132
 133     nsres = nsIDOMElement_GetOwnerDocument(elem, &nsdoc);
 134     if(NS_FAILED(nsres))
 135         return NULL;
 136
 137     nswindow = get_nsdoc_window(nsdoc);
 138     nsIDOMDocument_Release(nsdoc);
 139     if(!nswindow)
 140         return NULL;
 141
 142     window = nswindow_to_window(nswindow);
 143     nsIDOMWindow_Release(nswindow);
 144
 145     return window;
 146 }
 147
 148 static BOOL parse_classid(const PRUnichar *classid, CLSID *clsid)
 149 {
 150     const WCHAR *ptr;
 151     unsigned len;
 152     HRESULT hres;
 153
 154     static const PRUnichar clsidW[] = {'c','l','s','i','d',':'};
 155
 156     if(strncmpiW(classid, clsidW, sizeof(clsidW)/sizeof(WCHAR)))
 157         return FALSE;
 158
 159     ptr = classid + sizeof(clsidW)/sizeof(WCHAR);
 160     len = strlenW(ptr);
 161
 162     if(len == 38) {
 163         hres = CLSIDFromString(ptr, clsid);
 164     }else if(len == 36) {
 165         WCHAR buf[39];
 166
 167         buf[0] = '{';
 168         memcpy(buf+1, ptr, len*sizeof(WCHAR));
 169         buf[37] = '}';
 170         buf[38] = 0;
 171         hres = CLSIDFromString(buf, clsid);
 172     }else {
 173         return FALSE;
 174     }
 175
 176     return SUCCEEDED(hres);
 177 }
 178
 179 static BOOL get_elem_clsid(nsIDOMElement *elem, CLSID *clsid)
 180 {
 181     nsAString attr_str, val_str;
 182     nsresult nsres;
 183     BOOL ret = FALSE;
 184
 185     static const PRUnichar classidW[] = {'c','l','a','s','s','i','d',0};
 186
 187     nsAString_InitDepend(&attr_str, classidW);
 188     nsAString_Init(&val_str, NULL);
 189     nsres = nsIDOMElement_GetAttribute(elem, &attr_str, &val_str);
 190     nsAString_Finish(&attr_str);
 191     if(NS_SUCCEEDED(nsres)) {
 192         const PRUnichar *val;
 193
 194         nsAString_GetData(&val_str, &val);
 195         if(*val)
 196             ret = parse_classid(val, clsid);
 197     }else {
 198         ERR("GetAttribute failed: %08x\n", nsres);
 199     }
 200
 201     nsAString_Finish(&attr_str);
 202     return ret;
 203 }
 204
 205 static IUnknown *create_activex_object(HTMLWindow *window, nsIDOMElement *nselem, CLSID *clsid)
 206 {
 207     IClassFactoryEx *cfex;
 208     IClassFactory *cf;
 209     IUnknown *obj;
 210     DWORD policy;
 211     HRESULT hres;
 212
 213     if(!get_elem_clsid(nselem, clsid)) {
 214         WARN("Could not determine element CLSID\n");
 215         return NULL;
 216     }
 217
 218     TRACE("clsid %s\n", debugstr_guid(clsid));
 219
 220     policy = 0;
 221     hres = IInternetHostSecurityManager_ProcessUrlAction(&window->doc->IInternetHostSecurityManager_iface,
 222             URLACTION_ACTIVEX_RUN, (BYTE*)&policy, sizeof(policy), (BYTE*)clsid, sizeof(GUID), 0, 0);
 223     if(FAILED(hres) || policy != URLPOLICY_ALLOW) {
 224         WARN("ProcessUrlAction returned %08x %x\n", hres, policy);
 225         return NULL;
 226     }
 227
 228     hres = CoGetClassObject(clsid, CLSCTX_INPROC_SERVER|CLSCTX_LOCAL_SERVER, NULL, &IID_IClassFactory, (void**)&cf);
 229     if(FAILED(hres))
 230         return NULL;
 231
 232     hres = IClassFactory_QueryInterface(cf, &IID_IClassFactoryEx, (void**)&cfex);
 233     if(SUCCEEDED(hres)) {
 234         FIXME("Use IClassFactoryEx\n");
 235         IClassFactoryEx_Release(cfex);
 236     }
 237
 238     hres = IClassFactory_CreateInstance(cf, NULL, &IID_IUnknown, (void**)&obj);
 239     if(FAILED(hres))
 240         return NULL;
 241
 242     return obj;
 243 }
 244
 245 static NPError CDECL NPP_New(NPMIMEType pluginType, NPP instance, UINT16 mode, INT16 argc, char **argn,
 246         char **argv, NPSavedData *saved)
 247 {
 248     nsIDOMElement *nselem;
 249     HTMLWindow *window;
 250     IUnknown *obj;
 251     CLSID clsid;
 252     NPError err = NPERR_NO_ERROR;
 253
 254     TRACE("(%s %p %x %d %p %p %p)\n", debugstr_a(pluginType), instance, mode, argc, argn, argv, saved);
 255
 256     nselem = get_dom_element(instance);
 257     if(!nselem) {
 258         ERR("Could not get DOM element\n");
 259         return NPERR_GENERIC_ERROR;
 260     }
 261
 262     window = get_elem_window(nselem);
 263     if(!window) {
 264         ERR("Could not get element's window object\n");
 265         nsIDOMElement_Release(nselem);
 266         return NPERR_GENERIC_ERROR;
 267     }
 268
 269     obj = create_activex_object(window, nselem, &clsid);
 270     if(obj) {
 271         PluginHost *host;
 272         HRESULT hres;
 273
 274         hres = create_plugin_host(window->doc, nselem, obj, &clsid, &host);
 275         nsIDOMElement_Release(nselem);
 276         IUnknown_Release(obj);
 277         if(SUCCEEDED(hres))
 278             instance->pdata = host;
 279         else
 280             err = NPERR_GENERIC_ERROR;
 281     }else {
 282         err = NPERR_GENERIC_ERROR;
 283     }
 284
 285     nsIDOMElement_Release(nselem);
 286     return err;
 287 }
 288
 289 static NPError CDECL NPP_Destroy(NPP instance, NPSavedData **save)
 290 {
 291     PluginHost *host = instance->pdata;
 292
 293     TRACE("(%p %p)\n", instance, save);
 294
 295     if(!host)
 296         return NPERR_GENERIC_ERROR;
 297
 298     detach_plugin_host(host);
 299     IOleClientSite_Release(&host->IOleClientSite_iface);
 300     instance->pdata = NULL;
 301     return NPERR_NO_ERROR;
 302 }
 303
 304 static NPError CDECL NPP_SetWindow(NPP instance, NPWindow *window)
 305 {
 306     PluginHost *host = instance->pdata;
 307     RECT pos_rect = {0, 0, window->width, window->height};
 308
 309     TRACE("(%p %p)\n", instance, window);
 310
 311     if(!host)
 312         return NPERR_GENERIC_ERROR;
 313
 314     update_plugin_window(host, window->window, &pos_rect);
 315     return NPERR_NO_ERROR;
 316 }
 317
 318 static NPError CDECL NPP_NewStream(NPP instance, NPMIMEType type, NPStream *stream, NPBool seekable, UINT16 *stype)
 319 {
 320     TRACE("\n");
 321     return NPERR_GENERIC_ERROR;
 322 }
 323
 324 static NPError CDECL NPP_DestroyStream(NPP instance, NPStream *stream, NPReason reason)
 325 {
 326     TRACE("\n");
 327     return NPERR_GENERIC_ERROR;
 328 }
 329
 330 static INT32 CDECL NPP_WriteReady(NPP instance, NPStream *stream)
 331 {
 332     TRACE("\n");
 333     return NPERR_GENERIC_ERROR;
 334 }
 335
 336 static INT32 CDECL NPP_Write(NPP instance, NPStream *stream, INT32 offset, INT32 len, void *buffer)
 337 {
 338     TRACE("\n");
 339     return NPERR_GENERIC_ERROR;
 340 }
 341
 342 static void CDECL NPP_StreamAsFile(NPP instance, NPStream *stream, const char *fname)
 343 {
 344     TRACE("\n");
 345 }
 346
 347 static void CDECL NPP_Print(NPP instance, NPPrint *platformPrint)
 348 {
 349     FIXME("\n");
 350 }
 351
 352 static INT16 CDECL NPP_HandleEvent(NPP instance, void *event)
 353 {
 354     TRACE("\n");
 355     return NPERR_GENERIC_ERROR;
 356 }
 357
 358 static void CDECL NPP_URLNotify(NPP instance, const char *url, NPReason reason, void *notifyData)
 359 {
 360     TRACE("\n");
 361 }
 362
 363 static NPError CDECL NPP_GetValue(NPP instance, NPPVariable variable, void *ret_value)
 364 {
 365     TRACE("\n");
 366     return NPERR_GENERIC_ERROR;
 367 }
 368
 369 static NPError CDECL NPP_SetValue(NPP instance, NPNVariable variable, void *value)
 370 {
 371     TRACE("\n");
 372     return NPERR_GENERIC_ERROR;
 373 }
 374
 375 static NPBool CDECL NPP_GotFocus(NPP instance, NPFocusDirection direction)
 376 {
 377     FIXME("\n");
 378     return NPERR_GENERIC_ERROR;
 379 }
 380
 381 static void CDECL NPP_LostFocus(NPP instance)
 382 {
 383     FIXME("\n");
 384 }
 385
 386 /***********************************************************************
 387  *          NP_GetEntryPoints (mshtml.@)
 388  */
 389 NPError WINAPI NP_GetEntryPoints(NPPluginFuncs* funcs)
 390 {
 391     TRACE("(%p)\n", funcs);
 392
 393     funcs->version = (NP_VERSION_MAJOR << 8) | NP_VERSION_MINOR;
 394     funcs->newp = NPP_New;
 395     funcs->destroy = NPP_Destroy;
 396     funcs->setwindow = NPP_SetWindow;
 397     funcs->newstream = NPP_NewStream;
 398     funcs->destroystream = NPP_DestroyStream;
 399     funcs->asfile = NPP_StreamAsFile;
 400     funcs->writeready = NPP_WriteReady;
 401     funcs->write = NPP_Write;
 402     funcs->print = NPP_Print;
 403     funcs->event = NPP_HandleEvent;
 404     funcs->urlnotify = NPP_URLNotify;
 405     funcs->javaClass = NULL;
 406     funcs->getvalue = NPP_GetValue;
 407     funcs->setvalue = NPP_SetValue;
 408     funcs->gotfocus = NPP_GotFocus;
 409     funcs->lostfocus = NPP_LostFocus;
 410
 411     return NPERR_NO_ERROR;
 412 }