dlls/jscript/jscript.h

   1 /*
   2  * Copyright 2008-2009 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 <stdarg.h>
  20 #include <stdio.h>
  21
  22 #define COBJMACROS
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "winuser.h"
  27 #include "ole2.h"
  28 #include "dispex.h"
  29 #include "activscp.h"
  30
  31 #include "resource.h"
  32
  33 #include "wine/unicode.h"
  34 #include "wine/list.h"
  35
  36 #define JSCRIPT_ERROR 0x800A0000
  37
  38 typedef struct _script_ctx_t script_ctx_t;
  39 typedef struct _exec_ctx_t exec_ctx_t;
  40 typedef struct _dispex_prop_t dispex_prop_t;
  41
  42 typedef struct {
  43     EXCEPINFO ei;
  44     VARIANT var;
  45 } jsexcept_t;
  46
  47 typedef struct {
  48     void **blocks;
  49     DWORD block_cnt;
  50     DWORD last_block;
  51     DWORD offset;
  52     BOOL mark;
  53     struct list custom_blocks;
  54 } jsheap_t;
  55
  56 void jsheap_init(jsheap_t*);
  57 void *jsheap_alloc(jsheap_t*,DWORD);
  58 void *jsheap_grow(jsheap_t*,void*,DWORD,DWORD);
  59 void jsheap_clear(jsheap_t*);
  60 void jsheap_free(jsheap_t*);
  61 jsheap_t *jsheap_mark(jsheap_t*);
  62
  63 typedef struct DispatchEx DispatchEx;
  64
  65 extern HINSTANCE jscript_hinstance;
  66
  67 #define PROPF_ARGMASK 0x00ff
  68 #define PROPF_METHOD  0x0100
  69 #define PROPF_ENUM    0x0200
  70 #define PROPF_CONSTR  0x0400
  71
  72 /* NOTE: Keep in sync with names in Object.toString implementation */
  73 typedef enum {
  74     JSCLASS_NONE,
  75     JSCLASS_ARRAY,
  76     JSCLASS_BOOLEAN,
  77     JSCLASS_DATE,
  78     JSCLASS_ERROR,
  79     JSCLASS_FUNCTION,
  80     JSCLASS_GLOBAL,
  81     JSCLASS_MATH,
  82     JSCLASS_NUMBER,
  83     JSCLASS_OBJECT,
  84     JSCLASS_REGEXP,
  85     JSCLASS_STRING,
  86     JSCLASS_ARGUMENTS
  87 } jsclass_t;
  88
  89 DispatchEx *iface_to_jsdisp(IUnknown*);
  90
  91 typedef struct {
  92     union {
  93         IDispatch *disp;
  94         IDispatchEx *dispex;
  95         DispatchEx *jsdisp;
  96     } u;
  97     DWORD flags;
  98 } vdisp_t;
  99
 100 #define VDISP_DISPEX  0x0001
 101 #define VDISP_JSDISP  0x0002
 102
 103 static inline void vdisp_release(vdisp_t *vdisp)
 104 {
 105     IDispatch_Release(vdisp->u.disp);
 106 }
 107
 108 static inline BOOL is_jsdisp(vdisp_t *vdisp)
 109 {
 110     return (vdisp->flags & VDISP_JSDISP) != 0;
 111 }
 112
 113 static inline BOOL is_dispex(vdisp_t *vdisp)
 114 {
 115     return (vdisp->flags & VDISP_DISPEX) != 0;
 116 }
 117
 118 static inline void set_jsdisp(vdisp_t *vdisp, DispatchEx *jsdisp)
 119 {
 120     vdisp->u.jsdisp = jsdisp;
 121     vdisp->flags = VDISP_JSDISP | VDISP_DISPEX;
 122     IDispatch_AddRef(vdisp->u.disp);
 123 }
 124
 125 static inline void set_disp(vdisp_t *vdisp, IDispatch *disp)
 126 {
 127     IDispatchEx *dispex;
 128     DispatchEx *jsdisp;
 129     HRESULT hres;
 130
 131     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 132     if(jsdisp) {
 133         vdisp->u.jsdisp = jsdisp;
 134         vdisp->flags = VDISP_JSDISP | VDISP_DISPEX;
 135         return;
 136     }
 137
 138     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 139     if(SUCCEEDED(hres)) {
 140         vdisp->u.dispex = dispex;
 141         vdisp->flags = VDISP_DISPEX;
 142         return;
 143     }
 144
 145     IDispatch_AddRef(disp);
 146     vdisp->u.disp = disp;
 147     vdisp->flags = 0;
 148 }
 149
 150 static inline DispatchEx *get_jsdisp(vdisp_t *vdisp)
 151 {
 152     return is_jsdisp(vdisp) ? vdisp->u.jsdisp : NULL;
 153 }
 154
 155 typedef HRESULT (*builtin_invoke_t)(script_ctx_t*,vdisp_t*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 156
 157 typedef struct {
 158     const WCHAR *name;
 159     builtin_invoke_t invoke;
 160     DWORD flags;
 161 } builtin_prop_t;
 162
 163 typedef struct {
 164     jsclass_t class;
 165     builtin_prop_t value_prop;
 166     DWORD props_cnt;
 167     const builtin_prop_t *props;
 168     void (*destructor)(DispatchEx*);
 169     void (*on_put)(DispatchEx*,const WCHAR*);
 170 } builtin_info_t;
 171
 172 struct DispatchEx {
 173     const IDispatchExVtbl  *lpIDispatchExVtbl;
 174
 175     LONG ref;
 176
 177     DWORD buf_size;
 178     DWORD prop_cnt;
 179     dispex_prop_t *props;
 180     script_ctx_t *ctx;
 181
 182     DispatchEx *prototype;
 183
 184     const builtin_info_t *builtin_info;
 185 };
 186
 187 #define _IDispatchEx_(x) ((IDispatchEx*) &(x)->lpIDispatchExVtbl)
 188
 189 static inline void jsdisp_release(DispatchEx *jsdisp)
 190 {
 191     IDispatchEx_Release(_IDispatchEx_(jsdisp));
 192 }
 193
 194 HRESULT create_dispex(script_ctx_t*,const builtin_info_t*,DispatchEx*,DispatchEx**);
 195 HRESULT init_dispex(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
 196 HRESULT init_dispex_from_constr(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
 197
 198 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 199 HRESULT jsdisp_call_value(DispatchEx*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 200 HRESULT jsdisp_call(DispatchEx*,DISPID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 201 HRESULT jsdisp_call_name(DispatchEx*,const WCHAR*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 202 HRESULT disp_propget(script_ctx_t*,IDispatch*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 203 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 204 HRESULT jsdisp_propget(DispatchEx*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 205 HRESULT jsdisp_propput_name(DispatchEx*,const WCHAR*,VARIANT*,jsexcept_t*,IServiceProvider*);
 206 HRESULT jsdisp_propput_idx(DispatchEx*,DWORD,VARIANT*,jsexcept_t*,IServiceProvider*);
 207 HRESULT jsdisp_propget_name(DispatchEx*,LPCWSTR,VARIANT*,jsexcept_t*,IServiceProvider*);
 208 HRESULT jsdisp_get_idx(DispatchEx*,DWORD,VARIANT*,jsexcept_t*,IServiceProvider*);
 209 HRESULT jsdisp_get_id(DispatchEx*,const WCHAR*,DWORD,DISPID*);
 210 HRESULT jsdisp_delete_idx(DispatchEx*,DWORD);
 211
 212 HRESULT create_builtin_function(script_ctx_t*,builtin_invoke_t,const WCHAR*,const builtin_info_t*,DWORD,
 213         DispatchEx*,DispatchEx**);
 214 HRESULT Function_value(script_ctx_t*,vdisp_t*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 215
 216 HRESULT throw_eval_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 217 HRESULT throw_generic_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 218 HRESULT throw_range_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 219 HRESULT throw_reference_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 220 HRESULT throw_regexp_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 221 HRESULT throw_syntax_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 222 HRESULT throw_type_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 223 HRESULT throw_uri_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 224
 225 HRESULT create_object(script_ctx_t*,DispatchEx*,DispatchEx**);
 226 HRESULT create_math(script_ctx_t*,DispatchEx**);
 227 HRESULT create_array(script_ctx_t*,DWORD,DispatchEx**);
 228 HRESULT create_regexp(script_ctx_t*,const WCHAR *,int,DWORD,DispatchEx**);
 229 HRESULT create_regexp_var(script_ctx_t*,VARIANT*,VARIANT*,DispatchEx**);
 230 HRESULT create_string(script_ctx_t*,const WCHAR*,DWORD,DispatchEx**);
 231 HRESULT create_bool(script_ctx_t*,VARIANT_BOOL,DispatchEx**);
 232 HRESULT create_number(script_ctx_t*,VARIANT*,DispatchEx**);
 233
 234 typedef enum {
 235     NO_HINT,
 236     HINT_STRING,
 237     HINT_NUMBER
 238 } hint_t;
 239
 240 HRESULT to_primitive(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*, hint_t);
 241 HRESULT to_boolean(VARIANT*,VARIANT_BOOL*);
 242 HRESULT to_number(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
 243 HRESULT to_integer(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
 244 HRESULT to_int32(script_ctx_t*,VARIANT*,jsexcept_t*,INT*);
 245 HRESULT to_uint32(script_ctx_t*,VARIANT*,jsexcept_t*,DWORD*);
 246 HRESULT to_string(script_ctx_t*,VARIANT*,jsexcept_t*,BSTR*);
 247 HRESULT to_object(script_ctx_t*,VARIANT*,IDispatch**);
 248
 249 typedef struct named_item_t {
 250     IDispatch *disp;
 251     DWORD flags;
 252     LPWSTR name;
 253
 254     struct named_item_t *next;
 255 } named_item_t;
 256
 257 struct _script_ctx_t {
 258     LONG ref;
 259
 260     SCRIPTSTATE state;
 261     exec_ctx_t *exec_ctx;
 262     named_item_t *named_items;
 263     IActiveScriptSite *site;
 264     IInternetHostSecurityManager *secmgr;
 265     DWORD safeopt;
 266     DWORD version;
 267     LCID lcid;
 268
 269     jsheap_t tmp_heap;
 270
 271     IDispatch *host_global;
 272
 273     DispatchEx *global;
 274     DispatchEx *function_constr;
 275     DispatchEx *activex_constr;
 276     DispatchEx *array_constr;
 277     DispatchEx *bool_constr;
 278     DispatchEx *date_constr;
 279     DispatchEx *error_constr;
 280     DispatchEx *eval_error_constr;
 281     DispatchEx *range_error_constr;
 282     DispatchEx *reference_error_constr;
 283     DispatchEx *regexp_error_constr;
 284     DispatchEx *syntax_error_constr;
 285     DispatchEx *type_error_constr;
 286     DispatchEx *uri_error_constr;
 287     DispatchEx *number_constr;
 288     DispatchEx *object_constr;
 289     DispatchEx *regexp_constr;
 290     DispatchEx *string_constr;
 291 };
 292
 293 void script_release(script_ctx_t*);
 294
 295 static inline void script_addref(script_ctx_t *ctx)
 296 {
 297     ctx->ref++;
 298 }
 299
 300 HRESULT init_global(script_ctx_t*);
 301 HRESULT init_function_constr(script_ctx_t*,DispatchEx*);
 302 HRESULT create_object_prototype(script_ctx_t*,DispatchEx**);
 303
 304 HRESULT create_activex_constr(script_ctx_t*,DispatchEx**);
 305 HRESULT create_array_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 306 HRESULT create_bool_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 307 HRESULT create_date_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 308 HRESULT init_error_constr(script_ctx_t*,DispatchEx*);
 309 HRESULT create_number_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 310 HRESULT create_object_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 311 HRESULT create_regexp_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 312 HRESULT create_string_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 313
 314 IUnknown *create_ax_site(script_ctx_t*);
 315
 316 typedef struct {
 317     const WCHAR *str;
 318     DWORD len;
 319 } match_result_t;
 320
 321 #define REM_CHECK_GLOBAL 0x0001
 322 #define REM_RESET_INDEX  0x0002
 323 HRESULT regexp_match_next(script_ctx_t*,DispatchEx*,DWORD,const WCHAR*,DWORD,const WCHAR**,match_result_t**,
 324         DWORD*,DWORD*,match_result_t*);
 325 HRESULT regexp_match(script_ctx_t*,DispatchEx*,const WCHAR*,DWORD,BOOL,match_result_t**,DWORD*);
 326 HRESULT parse_regexp_flags(const WCHAR*,DWORD,DWORD*);
 327
 328 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
 329 {
 330     return dp->rgvarg + dp->cArgs-i-1;
 331 }
 332
 333 static inline DWORD arg_cnt(const DISPPARAMS *dp)
 334 {
 335     return dp->cArgs - dp->cNamedArgs;
 336 }
 337
 338 static inline BOOL is_class(DispatchEx *jsdisp, jsclass_t class)
 339 {
 340     return jsdisp->builtin_info->class == class;
 341 }
 342
 343 static inline BOOL is_vclass(vdisp_t *vdisp, jsclass_t class)
 344 {
 345     return is_jsdisp(vdisp) && is_class(vdisp->u.jsdisp, class);
 346 }
 347
 348 static inline BOOL is_num_vt(enum VARENUM vt)
 349 {
 350     return vt == VT_I4 || vt == VT_R8;
 351 }
 352
 353 static inline DOUBLE num_val(const VARIANT *v)
 354 {
 355     return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
 356 }
 357
 358 static inline void num_set_val(VARIANT *v, DOUBLE d)
 359 {
 360     if(d == (DOUBLE)(INT)d) {
 361         V_VT(v) = VT_I4;
 362         V_I4(v) = d;
 363     }else {
 364         V_VT(v) = VT_R8;
 365         V_R8(v) = d;
 366     }
 367 }
 368
 369 static inline void num_set_nan(VARIANT *v)
 370 {
 371     V_VT(v) = VT_R8;
 372 #ifdef NAN
 373     V_R8(v) = NAN;
 374 #else
 375     V_UI8(v) = (ULONGLONG)0x7ff80000<<32;
 376 #endif
 377 }
 378
 379 static inline DOUBLE ret_nan(void)
 380 {
 381     VARIANT v;
 382     num_set_nan(&v);
 383     return V_R8(&v);
 384 }
 385
 386 static inline void num_set_inf(VARIANT *v, BOOL positive)
 387 {
 388     V_VT(v) = VT_R8;
 389 #ifdef INFINITY
 390     V_R8(v) = positive ? INFINITY : -INFINITY;
 391 #else
 392     V_UI8(v) = (ULONGLONG)0x7ff00000<<32;
 393     if(!positive)
 394         V_R8(v) = -V_R8(v);
 395 #endif
 396 }
 397
 398 static inline DWORD make_grfdex(script_ctx_t *ctx, DWORD flags)
 399 {
 400     return (ctx->version << 28) | flags;
 401 }
 402
 403 const char *debugstr_variant(const VARIANT*);
 404
 405 HRESULT WINAPI JScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
 406
 407 extern LONG module_ref;
 408
 409 static inline void lock_module(void)
 410 {
 411     InterlockedIncrement(&module_ref);
 412 }
 413
 414 static inline void unlock_module(void)
 415 {
 416     InterlockedDecrement(&module_ref);
 417 }
 418
 419 static inline void *heap_alloc(size_t len)
 420 {
 421     return HeapAlloc(GetProcessHeap(), 0, len);
 422 }
 423
 424 static inline void *heap_alloc_zero(size_t len)
 425 {
 426     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 427 }
 428
 429 static inline void *heap_realloc(void *mem, size_t len)
 430 {
 431     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 432 }
 433
 434 static inline BOOL heap_free(void *mem)
 435 {
 436     return HeapFree(GetProcessHeap(), 0, mem);
 437 }
 438
 439 static inline LPWSTR heap_strdupW(LPCWSTR str)
 440 {
 441     LPWSTR ret = NULL;
 442
 443     if(str) {
 444         DWORD size;
 445
 446         size = (strlenW(str)+1)*sizeof(WCHAR);
 447         ret = heap_alloc(size);
 448         memcpy(ret, str, size);
 449     }
 450
 451     return ret;
 452 }
 453
 454 #define DEFINE_THIS(cls,ifc,iface) ((cls*)((BYTE*)(iface)-offsetof(cls,lp ## ifc ## Vtbl)))