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 #define PROPF_CONST   0x0800
  72
  73 /* NOTE: Keep in sync with names in Object.toString implementation */
  74 typedef enum {
  75     JSCLASS_NONE,
  76     JSCLASS_ARRAY,
  77     JSCLASS_BOOLEAN,
  78     JSCLASS_DATE,
  79     JSCLASS_ERROR,
  80     JSCLASS_FUNCTION,
  81     JSCLASS_GLOBAL,
  82     JSCLASS_MATH,
  83     JSCLASS_NUMBER,
  84     JSCLASS_OBJECT,
  85     JSCLASS_REGEXP,
  86     JSCLASS_STRING,
  87     JSCLASS_ARGUMENTS
  88 } jsclass_t;
  89
  90 DispatchEx *iface_to_jsdisp(IUnknown*);
  91
  92 typedef struct {
  93     union {
  94         IDispatch *disp;
  95         IDispatchEx *dispex;
  96         DispatchEx *jsdisp;
  97     } u;
  98     DWORD flags;
  99 } vdisp_t;
 100
 101 #define VDISP_DISPEX  0x0001
 102 #define VDISP_JSDISP  0x0002
 103
 104 static inline void vdisp_release(vdisp_t *vdisp)
 105 {
 106     IDispatch_Release(vdisp->u.disp);
 107 }
 108
 109 static inline BOOL is_jsdisp(vdisp_t *vdisp)
 110 {
 111     return (vdisp->flags & VDISP_JSDISP) != 0;
 112 }
 113
 114 static inline BOOL is_dispex(vdisp_t *vdisp)
 115 {
 116     return (vdisp->flags & VDISP_DISPEX) != 0;
 117 }
 118
 119 static inline void set_jsdisp(vdisp_t *vdisp, DispatchEx *jsdisp)
 120 {
 121     vdisp->u.jsdisp = jsdisp;
 122     vdisp->flags = VDISP_JSDISP | VDISP_DISPEX;
 123     IDispatch_AddRef(vdisp->u.disp);
 124 }
 125
 126 static inline void set_disp(vdisp_t *vdisp, IDispatch *disp)
 127 {
 128     IDispatchEx *dispex;
 129     DispatchEx *jsdisp;
 130     HRESULT hres;
 131
 132     jsdisp = iface_to_jsdisp((IUnknown*)disp);
 133     if(jsdisp) {
 134         vdisp->u.jsdisp = jsdisp;
 135         vdisp->flags = VDISP_JSDISP | VDISP_DISPEX;
 136         return;
 137     }
 138
 139     hres = IDispatch_QueryInterface(disp, &IID_IDispatchEx, (void**)&dispex);
 140     if(SUCCEEDED(hres)) {
 141         vdisp->u.dispex = dispex;
 142         vdisp->flags = VDISP_DISPEX;
 143         return;
 144     }
 145
 146     IDispatch_AddRef(disp);
 147     vdisp->u.disp = disp;
 148     vdisp->flags = 0;
 149 }
 150
 151 static inline DispatchEx *get_jsdisp(vdisp_t *vdisp)
 152 {
 153     return is_jsdisp(vdisp) ? vdisp->u.jsdisp : NULL;
 154 }
 155
 156 typedef HRESULT (*builtin_invoke_t)(script_ctx_t*,vdisp_t*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 157
 158 typedef struct {
 159     const WCHAR *name;
 160     builtin_invoke_t invoke;
 161     DWORD flags;
 162 } builtin_prop_t;
 163
 164 typedef struct {
 165     jsclass_t class;
 166     builtin_prop_t value_prop;
 167     DWORD props_cnt;
 168     const builtin_prop_t *props;
 169     void (*destructor)(DispatchEx*);
 170     void (*on_put)(DispatchEx*,const WCHAR*);
 171 } builtin_info_t;
 172
 173 struct DispatchEx {
 174     const IDispatchExVtbl  *lpIDispatchExVtbl;
 175
 176     LONG ref;
 177
 178     DWORD buf_size;
 179     DWORD prop_cnt;
 180     dispex_prop_t *props;
 181     script_ctx_t *ctx;
 182
 183     DispatchEx *prototype;
 184
 185     const builtin_info_t *builtin_info;
 186 };
 187
 188 #define _IDispatchEx_(x) ((IDispatchEx*) &(x)->lpIDispatchExVtbl)
 189
 190 static inline void jsdisp_release(DispatchEx *jsdisp)
 191 {
 192     IDispatchEx_Release(_IDispatchEx_(jsdisp));
 193 }
 194
 195 HRESULT create_dispex(script_ctx_t*,const builtin_info_t*,DispatchEx*,DispatchEx**);
 196 HRESULT init_dispex(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
 197 HRESULT init_dispex_from_constr(DispatchEx*,script_ctx_t*,const builtin_info_t*,DispatchEx*);
 198
 199 HRESULT disp_call(script_ctx_t*,IDispatch*,DISPID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 200 HRESULT jsdisp_call_value(DispatchEx*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 201 HRESULT jsdisp_call(DispatchEx*,DISPID,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 202 HRESULT jsdisp_call_name(DispatchEx*,const WCHAR*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 203 HRESULT disp_propget(script_ctx_t*,IDispatch*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 204 HRESULT disp_propput(script_ctx_t*,IDispatch*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 205 HRESULT jsdisp_propget(DispatchEx*,DISPID,VARIANT*,jsexcept_t*,IServiceProvider*);
 206 HRESULT jsdisp_propput_name(DispatchEx*,const WCHAR*,VARIANT*,jsexcept_t*,IServiceProvider*);
 207 HRESULT jsdisp_propput_const(DispatchEx*,const WCHAR*,VARIANT*);
 208 HRESULT jsdisp_propput_idx(DispatchEx*,DWORD,VARIANT*,jsexcept_t*,IServiceProvider*);
 209 HRESULT jsdisp_propget_name(DispatchEx*,LPCWSTR,VARIANT*,jsexcept_t*,IServiceProvider*);
 210 HRESULT jsdisp_get_idx(DispatchEx*,DWORD,VARIANT*,jsexcept_t*,IServiceProvider*);
 211 HRESULT jsdisp_get_id(DispatchEx*,const WCHAR*,DWORD,DISPID*);
 212 HRESULT jsdisp_delete_idx(DispatchEx*,DWORD);
 213
 214 HRESULT create_builtin_function(script_ctx_t*,builtin_invoke_t,const WCHAR*,const builtin_info_t*,DWORD,
 215         DispatchEx*,DispatchEx**);
 216 HRESULT Function_value(script_ctx_t*,vdisp_t*,WORD,DISPPARAMS*,VARIANT*,jsexcept_t*,IServiceProvider*);
 217
 218 HRESULT throw_eval_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 219 HRESULT throw_generic_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 220 HRESULT throw_range_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 221 HRESULT throw_reference_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 222 HRESULT throw_regexp_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 223 HRESULT throw_syntax_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 224 HRESULT throw_type_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 225 HRESULT throw_uri_error(script_ctx_t*,jsexcept_t*,UINT,const WCHAR*);
 226
 227 HRESULT create_object(script_ctx_t*,DispatchEx*,DispatchEx**);
 228 HRESULT create_math(script_ctx_t*,DispatchEx**);
 229 HRESULT create_array(script_ctx_t*,DWORD,DispatchEx**);
 230 HRESULT create_regexp(script_ctx_t*,const WCHAR *,int,DWORD,DispatchEx**);
 231 HRESULT create_regexp_var(script_ctx_t*,VARIANT*,VARIANT*,DispatchEx**);
 232 HRESULT create_string(script_ctx_t*,const WCHAR*,DWORD,DispatchEx**);
 233 HRESULT create_bool(script_ctx_t*,VARIANT_BOOL,DispatchEx**);
 234 HRESULT create_number(script_ctx_t*,VARIANT*,DispatchEx**);
 235
 236 typedef enum {
 237     NO_HINT,
 238     HINT_STRING,
 239     HINT_NUMBER
 240 } hint_t;
 241
 242 HRESULT to_primitive(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*, hint_t);
 243 HRESULT to_boolean(VARIANT*,VARIANT_BOOL*);
 244 HRESULT to_number(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
 245 HRESULT to_integer(script_ctx_t*,VARIANT*,jsexcept_t*,VARIANT*);
 246 HRESULT to_int32(script_ctx_t*,VARIANT*,jsexcept_t*,INT*);
 247 HRESULT to_uint32(script_ctx_t*,VARIANT*,jsexcept_t*,DWORD*);
 248 HRESULT to_string(script_ctx_t*,VARIANT*,jsexcept_t*,BSTR*);
 249 HRESULT to_object(script_ctx_t*,VARIANT*,IDispatch**);
 250
 251 typedef struct named_item_t {
 252     IDispatch *disp;
 253     DWORD flags;
 254     LPWSTR name;
 255
 256     struct named_item_t *next;
 257 } named_item_t;
 258
 259 struct _script_ctx_t {
 260     LONG ref;
 261
 262     SCRIPTSTATE state;
 263     exec_ctx_t *exec_ctx;
 264     named_item_t *named_items;
 265     IActiveScriptSite *site;
 266     IInternetHostSecurityManager *secmgr;
 267     DWORD safeopt;
 268     DWORD version;
 269     LCID lcid;
 270
 271     jsheap_t tmp_heap;
 272
 273     IDispatch *host_global;
 274
 275     BSTR last_match;
 276     DWORD last_match_index;
 277     DWORD last_match_length;
 278
 279     DispatchEx *global;
 280     DispatchEx *function_constr;
 281     DispatchEx *activex_constr;
 282     DispatchEx *array_constr;
 283     DispatchEx *bool_constr;
 284     DispatchEx *date_constr;
 285     DispatchEx *error_constr;
 286     DispatchEx *eval_error_constr;
 287     DispatchEx *range_error_constr;
 288     DispatchEx *reference_error_constr;
 289     DispatchEx *regexp_error_constr;
 290     DispatchEx *syntax_error_constr;
 291     DispatchEx *type_error_constr;
 292     DispatchEx *uri_error_constr;
 293     DispatchEx *number_constr;
 294     DispatchEx *object_constr;
 295     DispatchEx *regexp_constr;
 296     DispatchEx *string_constr;
 297 };
 298
 299 void script_release(script_ctx_t*);
 300
 301 static inline void script_addref(script_ctx_t *ctx)
 302 {
 303     ctx->ref++;
 304 }
 305
 306 HRESULT init_global(script_ctx_t*);
 307 HRESULT init_function_constr(script_ctx_t*,DispatchEx*);
 308 HRESULT create_object_prototype(script_ctx_t*,DispatchEx**);
 309
 310 HRESULT create_activex_constr(script_ctx_t*,DispatchEx**);
 311 HRESULT create_array_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 312 HRESULT create_bool_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 313 HRESULT create_date_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 314 HRESULT init_error_constr(script_ctx_t*,DispatchEx*);
 315 HRESULT create_number_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 316 HRESULT create_object_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 317 HRESULT create_regexp_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 318 HRESULT create_string_constr(script_ctx_t*,DispatchEx*,DispatchEx**);
 319
 320 IUnknown *create_ax_site(script_ctx_t*);
 321
 322 typedef struct {
 323     const WCHAR *str;
 324     DWORD len;
 325 } match_result_t;
 326
 327 #define REM_CHECK_GLOBAL   0x0001
 328 #define REM_RESET_INDEX    0x0002
 329 #define REM_NO_CTX_UPDATE  0x0004
 330 HRESULT regexp_match_next(script_ctx_t*,DispatchEx*,DWORD,const WCHAR*,DWORD,const WCHAR**,match_result_t**,
 331         DWORD*,DWORD*,match_result_t*);
 332 HRESULT regexp_match(script_ctx_t*,DispatchEx*,const WCHAR*,DWORD,BOOL,match_result_t**,DWORD*);
 333 HRESULT parse_regexp_flags(const WCHAR*,DWORD,DWORD*);
 334 HRESULT regexp_string_match(script_ctx_t*,DispatchEx*,BSTR,VARIANT*,jsexcept_t*);
 335
 336 static inline VARIANT *get_arg(DISPPARAMS *dp, DWORD i)
 337 {
 338     return dp->rgvarg + dp->cArgs-i-1;
 339 }
 340
 341 static inline DWORD arg_cnt(const DISPPARAMS *dp)
 342 {
 343     return dp->cArgs - dp->cNamedArgs;
 344 }
 345
 346 static inline BOOL is_class(DispatchEx *jsdisp, jsclass_t class)
 347 {
 348     return jsdisp->builtin_info->class == class;
 349 }
 350
 351 static inline BOOL is_vclass(vdisp_t *vdisp, jsclass_t class)
 352 {
 353     return is_jsdisp(vdisp) && is_class(vdisp->u.jsdisp, class);
 354 }
 355
 356 static inline BOOL is_num_vt(enum VARENUM vt)
 357 {
 358     return vt == VT_I4 || vt == VT_R8;
 359 }
 360
 361 static inline DOUBLE num_val(const VARIANT *v)
 362 {
 363     return V_VT(v) == VT_I4 ? V_I4(v) : V_R8(v);
 364 }
 365
 366 static inline void num_set_val(VARIANT *v, DOUBLE d)
 367 {
 368     if(d == (DOUBLE)(INT)d) {
 369         V_VT(v) = VT_I4;
 370         V_I4(v) = d;
 371     }else {
 372         V_VT(v) = VT_R8;
 373         V_R8(v) = d;
 374     }
 375 }
 376
 377 static inline void num_set_nan(VARIANT *v)
 378 {
 379     V_VT(v) = VT_R8;
 380 #ifdef NAN
 381     V_R8(v) = NAN;
 382 #else
 383     V_UI8(v) = (ULONGLONG)0x7ff80000<<32;
 384 #endif
 385 }
 386
 387 static inline DOUBLE ret_nan(void)
 388 {
 389     VARIANT v;
 390     num_set_nan(&v);
 391     return V_R8(&v);
 392 }
 393
 394 static inline void num_set_inf(VARIANT *v, BOOL positive)
 395 {
 396     V_VT(v) = VT_R8;
 397 #ifdef INFINITY
 398     V_R8(v) = positive ? INFINITY : -INFINITY;
 399 #else
 400     V_UI8(v) = (ULONGLONG)0x7ff00000<<32;
 401     if(!positive)
 402         V_R8(v) = -V_R8(v);
 403 #endif
 404 }
 405
 406 static inline DWORD make_grfdex(script_ctx_t *ctx, DWORD flags)
 407 {
 408     return (ctx->version << 28) | flags;
 409 }
 410
 411 const char *debugstr_variant(const VARIANT*);
 412
 413 HRESULT WINAPI JScriptFactory_CreateInstance(IClassFactory*,IUnknown*,REFIID,void**);
 414
 415 extern LONG module_ref;
 416
 417 static inline void lock_module(void)
 418 {
 419     InterlockedIncrement(&module_ref);
 420 }
 421
 422 static inline void unlock_module(void)
 423 {
 424     InterlockedDecrement(&module_ref);
 425 }
 426
 427 static inline void *heap_alloc(size_t len)
 428 {
 429     return HeapAlloc(GetProcessHeap(), 0, len);
 430 }
 431
 432 static inline void *heap_alloc_zero(size_t len)
 433 {
 434     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
 435 }
 436
 437 static inline void *heap_realloc(void *mem, size_t len)
 438 {
 439     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
 440 }
 441
 442 static inline BOOL heap_free(void *mem)
 443 {
 444     return HeapFree(GetProcessHeap(), 0, mem);
 445 }
 446
 447 static inline LPWSTR heap_strdupW(LPCWSTR str)
 448 {
 449     LPWSTR ret = NULL;
 450
 451     if(str) {
 452         DWORD size;
 453
 454         size = (strlenW(str)+1)*sizeof(WCHAR);
 455         ret = heap_alloc(size);
 456         memcpy(ret, str, size);
 457     }
 458
 459     return ret;
 460 }
 461
 462 #define DEFINE_THIS(cls,ifc,iface) ((cls*)((BYTE*)(iface)-offsetof(cls,lp ## ifc ## Vtbl)))