/* @bookmark_class.setProperty */
static JSBool
bookmark_set_property(JSContext *ctx, JSObject *obj, jsid id, JSBool strict, jsval *vp)
{
struct bookmark *bookmark;
jsid tmp;
unsigned char *title = NULL;
unsigned char *url = NULL;
int ok;
/* This can be called if @obj if not itself an instance of the
* appropriate class but has one in its prototype chain. Fail
* such calls. */
if (!JS_InstanceOf(ctx, obj, (JSClass *) &bookmark_class, NULL))
return JS_FALSE;
bookmark = JS_GetInstancePrivate(ctx, obj,
(JSClass *) &bookmark_class, NULL);
if (!bookmark) return JS_FALSE;
if (!JSID_IS_INT(id))
return JS_FALSE;
switch (JSID_TO_INT(id)) {
case BOOKMARK_TITLE:
if (!JS_ValueToId(ctx, *vp, &tmp))
return JS_FALSE;
if (!jsval_to_bookmark_string(ctx, tmp, &title))
return JS_FALSE;
break;
case BOOKMARK_URL:
if (!JS_ValueToId(ctx, *vp, &tmp))
return JS_FALSE;
if (!jsval_to_bookmark_string(ctx, tmp, &url))
return JS_FALSE;
break;
default:
/* Unrecognized integer property ID; someone is using
* the object as an array. SMJS builtin classes (e.g.
* js_RegExpClass) just return JS_TRUE in this case.
* Do the same here. */
return JS_TRUE;
}
ok = update_bookmark(bookmark, get_cp_index("UTF-8"), title, url);
mem_free_if(title);
mem_free_if(url);
return ok ? JS_TRUE : JS_FALSE;
}
JSBool
JavaStringToId(JSContext *cx, JNIEnv *jEnv, jstring jstr, jsid *idp)
{
const jschar *ucs2;
JSString *jsstr;
jsize ucs2_len;
jsval val;
ucs2 = (*jEnv)->GetStringChars(jEnv, jstr, 0);
if (!ucs2) {
jsj_UnexpectedJavaError(cx, jEnv, "Couldn't obtain Unicode characters"
"from Java string");
return JS_FALSE;
}
ucs2_len = (*jEnv)->GetStringLength(jEnv, jstr);
jsstr = JS_InternUCStringN(cx, ucs2, ucs2_len);
(*jEnv)->ReleaseStringChars(jEnv, jstr, ucs2);
if (!jsstr)
return JS_FALSE;
val = STRING_TO_JSVAL(jsstr);
JS_ValueToId(cx, STRING_TO_JSVAL(jsstr), idp);
return JS_TRUE;
}
void BSONInfo::enumerate(JSContext* cx, JS::HandleObject obj, JS::AutoIdVector& properties) {
auto holder = getHolder(obj);
if (!holder)
return;
BSONObjIterator i(holder->_obj);
ObjectWrapper o(cx, obj);
JS::RootedValue val(cx);
JS::RootedId id(cx);
while (i.more()) {
BSONElement e = i.next();
// TODO: when we get heterogenous set lookup, switch to StringData
// rather than involving the temporary string
if (holder->_removed.count(e.fieldName()))
continue;
ValueReader(cx, &val).fromStringData(e.fieldNameStringData());
if (!JS_ValueToId(cx, val, &id))
uasserted(ErrorCodes::JSInterpreterFailure, "Failed to invoke JS_ValueToId");
properties.append(id);
}
}
static JSBool
XPC_COW_NewResolve(JSContext *cx, JSObject *obj, jsval idval, uintN flags,
JSObject **objp)
{
obj = GetWrapper(obj);
JSObject *wrappedObj = GetWrappedObject(cx, obj);
if (!wrappedObj) {
// No wrappedObj means that this is probably the prototype.
*objp = nsnull;
return JS_TRUE;
}
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid()) {
return ThrowException(NS_ERROR_FAILURE, cx);
}
jsid id;
JSBool canTouch;
if (!JS_ValueToId(cx, idval, &id) ||
!CanTouchProperty(cx, obj, id, (flags & JSRESOLVE_ASSIGNING) != 0,
&canTouch)) {
return JS_FALSE;
}
if (!canTouch) {
return ThrowException(NS_ERROR_XPC_SECURITY_MANAGER_VETO, cx);
}
return XPCWrapper::NewResolve(cx, obj, JS_TRUE, wrappedObj, id, flags, objp);
}
NS_IMETHODIMP
nsJetpack::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsval id, PRUint32 flags,
JSObject * *objp, PRBool *_retval)
{
if (JSVAL_IS_STRING(id) &&
strncmp(JS_GetStringBytes(JSVAL_TO_STRING(id)), "get", 3) == 0) {
JSFunction *get = JS_NewFunction(cx, getEndpoint, 0, 0,
JS_GetParent(cx, obj), "get");
if (!get) {
JS_ReportOutOfMemory(cx);
*_retval = PR_FALSE;
return NS_OK;
}
JSObject *getObj = JS_GetFunctionObject(get);
jsid idid;
*objp = obj;
*_retval = (JS_ValueToId(cx, id, &idid) &&
JS_DefinePropertyById(cx, obj, idid,
OBJECT_TO_JSVAL(getObj),
nsnull, nsnull,
JSPROP_ENUMERATE |
JSPROP_READONLY |
JSPROP_PERMANENT));
return NS_OK;
}
*objp = nsnull;
*_retval = PR_TRUE;
return NS_OK;
}
/* static */
bool
DOMProxyHandler::AppendNamedPropertyIds(JSContext* cx,
JS::Handle<JSObject*> proxy,
nsTArray<nsString>& names,
bool shadowPrototypeProperties,
DOMProxyHandler* handler,
JS::AutoIdVector& props)
{
for (uint32_t i = 0; i < names.Length(); ++i) {
JS::Rooted<JS::Value> v(cx);
if (!xpc::NonVoidStringToJsval(cx, names[i], v.address())) {
return false;
}
JS::Rooted<jsid> id(cx);
if (!JS_ValueToId(cx, v, id.address())) {
return false;
}
if (shadowPrototypeProperties ||
!HasPropertyOnPrototype(cx, proxy, handler, id)) {
if (!props.append(id)) {
return false;
}
}
}
return true;
}
bool
DOMProxyHandler::AppendNamedPropertyIds(JSContext* cx, JSObject* proxy,
nsTArray<nsString>& names,
JS::AutoIdVector& props)
{
for (uint32_t i = 0; i < names.Length(); ++i) {
JS::Value v;
if (!xpc::NonVoidStringToJsval(cx, names[i], &v)) {
return false;
}
jsid id;
if (!JS_ValueToId(cx, v, &id)) {
return false;
}
if (!HasPropertyOnPrototype(cx, proxy, this, id)) {
if (!props.append(id)) {
return false;
}
}
}
return true;
}
static JSBool
stringToId(JSContext *cx, const char *s, jsid *idp)
{
JSString *str = JS_NewStringCopyZ(cx, s);
if (!str)
return false;
return JS_ValueToId(cx, STRING_TO_JSVAL(str), idp);
}
static JSBool
XPC_COW_GetOrSetProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp,
JSBool isSet)
{
obj = GetWrapper(obj);
if (!obj) {
return ThrowException(NS_ERROR_ILLEGAL_VALUE, cx);
}
XPCCallContext ccx(JS_CALLER, cx);
if (!ccx.IsValid()) {
return ThrowException(NS_ERROR_FAILURE, cx);
}
AUTO_MARK_JSVAL(ccx, vp);
JSObject *wrappedObj = GetWrappedObject(cx, obj);
if (!wrappedObj) {
return ThrowException(NS_ERROR_ILLEGAL_VALUE, cx);
}
jsid interned_id;
if (!JS_ValueToId(cx, id, &interned_id)) {
return JS_FALSE;
}
if (interned_id == GetRTIdByIndex(cx, XPCJSRuntime::IDX_PROTO) ||
interned_id == GetRTIdByIndex(cx, XPCJSRuntime::IDX_PARENT) ||
interned_id == GetRTIdByIndex(cx, XPCJSRuntime::IDX_EXPOSEDPROPS)) {
// No getting or setting __proto__ or __parent__ on my object.
return ThrowException(NS_ERROR_INVALID_ARG, cx); // XXX better error message
}
JSBool canTouch;
if (!CanTouchProperty(cx, obj, interned_id, isSet, &canTouch)) {
return JS_FALSE;
}
if (!canTouch) {
return ThrowException(NS_ERROR_XPC_SECURITY_MANAGER_VETO, cx);
}
if (!XPC_COW_RewrapForChrome(cx, obj, vp)) {
return JS_FALSE;
}
JSBool ok = isSet
? JS_SetPropertyById(cx, wrappedObj, interned_id, vp)
: JS_GetPropertyById(cx, wrappedObj, interned_id, vp);
if (!ok) {
return JS_FALSE;
}
return XPC_COW_RewrapForContent(cx, obj, vp);
}
static JSBool
rpmhdr_enumerate(JSContext *cx, JSObject *obj, JSIterateOp op,
jsval *statep, jsid *idp)
{
void * ptr = JS_GetInstancePrivate(cx, obj, &rpmhdrClass, NULL);
Header h = ptr;
HeaderIterator hi = NULL;
HE_t he = memset(alloca(sizeof(*he)), 0, sizeof(*he));
JSObject *ho = NULL;
JSBool ok = JS_FALSE;
_ENUMERATE_DEBUG_ENTRY(_debug);
switch (op) {
case JSENUMERATE_INIT:
if ((ho = JS_NewObject(cx, &rpmhiClass, NULL, obj)) == NULL)
goto exit;
if ((hi = headerInit(h)) == NULL)
goto exit;
if (!JS_SetPrivate(cx, ho, (void *)hi)) {
hi = headerFini(hi);
goto exit;
}
*statep = OBJECT_TO_JSVAL(ho);
if (idp)
*idp = JSVAL_ZERO;
if (_debug)
fprintf(stderr, "\tINIT ho %p hi %p\n", ho, hi);
break;
case JSENUMERATE_NEXT:
ho = (JSObject *) JSVAL_TO_OBJECT(*statep);
hi = JS_GetInstancePrivate(cx, ho, &rpmhiClass, NULL);
if (_debug)
fprintf(stderr, "\tNEXT ho %p hi %p\n", ho, hi);
if (headerNext(hi, he, 0)) {
JS_ValueToId(cx, INT_TO_JSVAL(he->tag), idp);
he->p.ptr = _free(he->p.ptr);
} else
*idp = JSVAL_VOID;
if (*idp != JSVAL_VOID)
break;
/*@fallthrough@*/
case JSENUMERATE_DESTROY:
ho = (JSObject *) JSVAL_TO_OBJECT(*statep);
hi = JS_GetInstancePrivate(cx, ho, &rpmhiClass, NULL);
if (_debug)
fprintf(stderr, "\tFINI ho %p hi %p\n", ho, hi);
/* Allow our iterator object to be GC'd. */
*statep = JSVAL_NULL;
break;
}
ok = JS_TRUE;
exit:
return ok;
}
static JSBool
XPC_SJOW_GetOrSetProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp,
JSBool aIsSet)
{
// We resolve toString to a function in our resolve hook.
if (id == GetRTStringByIndex(cx, XPCJSRuntime::IDX_TO_STRING)) {
return JS_TRUE;
}
obj = FindSafeObject(obj);
NS_ASSERTION(obj != nsnull, "FindSafeObject() returned null in class hook!");
JSObject *unsafeObj = GetUnsafeObject(obj);
if (!unsafeObj) {
return ThrowException(NS_ERROR_UNEXPECTED, cx);
}
// Check that the caller can access the unsafe object.
if (!CanCallerAccess(cx, unsafeObj)) {
// CanCallerAccess() already threw for us.
return JS_FALSE;
}
JSObject *scopeFun = GetScopeFunction(cx, obj);
if (!scopeFun) {
return JS_FALSE;
}
{
SafeCallGuard guard(cx, FindObjectPrincipals(cx, obj, unsafeObj));
if (!guard.ready()) {
return JS_FALSE;
}
jsid interned_id;
if (!JS_ValueToId(cx, id, &interned_id)) {
return JS_FALSE;
}
if (aIsSet) {
*vp = UnwrapJSValue(*vp);
}
JSBool ok = aIsSet
? js_SetPropertyByIdWithFakeFrame(cx, unsafeObj, scopeFun,
interned_id, vp)
: js_GetPropertyByIdWithFakeFrame(cx, unsafeObj, scopeFun,
interned_id, vp);
if (!ok) {
return JS_FALSE;
}
}
return WrapJSValue(cx, obj, *vp, vp);
}
static JSBool
enumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
jsval *statep, jsid *idp)
{
JSObject *iterator;
switch (enum_op) {
case JSENUMERATE_INIT:
if (resolverHasMethod(cx, obj, "enumerate")) {
if (!delegateToResolver(cx, obj, "enumerate", 0, NULL, statep))
return JS_FALSE;
if (!JSVAL_IS_OBJECT(*statep)) {
JS_ReportError(cx, "Expected enumerate() to return an iterator.");
return JS_FALSE;
}
*idp = JSVAL_ZERO;
JS_AddRoot(cx, statep);
return JS_TRUE;
}
// TODO: Default behavior?
JS_ReportError(cx, "Enumeration is not implemented on this object.");
return JS_FALSE;
case JSENUMERATE_NEXT:
jsval rval;
iterator = JSVAL_TO_OBJECT(*statep);
if (!JS_CallFunctionName(cx, iterator, "next", 0, NULL, &rval)) {
if (JS_IsExceptionPending(cx)) {
jsval exception;
if (!JS_GetPendingException(cx, &exception))
return JS_FALSE;
if (!JSVAL_IS_OBJECT(exception))
return JS_FALSE;
JSClass *clasp = JS_GET_CLASS(cx, JSVAL_TO_OBJECT(exception));
if (clasp &&
JSCLASS_CACHED_PROTO_KEY(clasp) == JSProto_StopIteration) {
JS_ClearPendingException(cx);
*statep = JSVAL_NULL;
JS_RemoveRoot(cx, statep);
return JS_TRUE;
}
}
return JS_FALSE;
}
if (!JS_ValueToId(cx, rval, idp))
return JS_FALSE;
return JS_TRUE;
case JSENUMERATE_DESTROY:
JS_RemoveRoot(cx, statep);
return JS_TRUE;
default:
JS_ReportError(cx, "Unknown enum_op");
return JS_FALSE;
}
}
static JSBool
rpmts_enumerate(JSContext *cx, JSObject *obj, JSIterateOp op,
jsval *statep, jsid *idp)
{
void * ptr = JS_GetInstancePrivate(cx, obj, &rpmtsClass, NULL);
rpmts ts = ptr;
rpmtsi tsi;
JSObject *tsio = NULL;
JSBool ok = JS_FALSE;
_ENUMERATE_DEBUG_ENTRY(_debug);
switch (op) {
case JSENUMERATE_INIT:
if ((tsio = JS_NewObject(cx, &rpmtsiClass, NULL, obj)) == NULL)
goto exit;
if ((tsi = rpmtsiInit(ts)) == NULL)
goto exit;
if (!JS_SetPrivate(cx, tsio, (void *)tsi)) {
tsi = rpmtsiFree(tsi);
goto exit;
}
*statep = OBJECT_TO_JSVAL(tsio);
if (idp)
*idp = JSVAL_ZERO;
if (_debug)
fprintf(stderr, "\tINIT tsio %p tsi %p\n", tsio, tsi);
break;
case JSENUMERATE_NEXT:
tsio = (JSObject *) JSVAL_TO_OBJECT(*statep);
tsi = JS_GetInstancePrivate(cx, tsio, &rpmtsiClass, NULL);
if (rpmtsiNext(tsi, 0) != NULL) {
int oc = rpmtsiOc(tsi);
if (_debug)
fprintf(stderr, "\tNEXT tsio %p tsi %p[%d]\n", tsio, tsi, oc);
JS_ValueToId(cx, INT_TO_JSVAL(oc), idp);
} else
*idp = JSVAL_VOID;
if (*idp != JSVAL_VOID)
break;
/*@fallthrough@*/
case JSENUMERATE_DESTROY:
tsio = (JSObject *) JSVAL_TO_OBJECT(*statep);
tsi = JS_GetInstancePrivate(cx, tsio, &rpmtsiClass, NULL);
if (_debug)
fprintf(stderr, "\tFINI tsio %p tsi %p\n", tsio, tsi);
/* Allow our iterator object to be GC'd. */
*statep = JSVAL_NULL;
break;
}
ok = JS_TRUE;
exit:
return ok;
}
static JSBool
XPC_COW_CheckAccess(JSContext *cx, JSObject *obj, jsval prop, JSAccessMode mode,
jsval *vp)
{
// Simply forward checkAccess to our wrapped object. It's already expecting
// untrusted things to ask it about accesses.
uintN junk;
jsid id;
return JS_ValueToId(cx, prop, &id) &&
JS_CheckAccess(cx, GetWrappedObject(cx, obj), id, mode, vp, &junk);
}
JSBool
resolve(JSContext* jscx, JSObject* jsobj, jsval key)
{
Context* pycx = NULL;
PyObject* pykey = NULL;
jsid pid;
JSBool ret = JS_FALSE;
pycx = (Context*) JS_GetContextPrivate(jscx);
if(pycx == NULL)
{
JS_ReportError(jscx, "Failed to get Python context.");
goto done;
}
// Bail if there's no registered global handler.
if(pycx->global == NULL)
{
ret = JS_TRUE;
goto done;
}
pykey = js2py(pycx, key);
if(pykey == NULL) goto done;
if(Context_has_access(pycx, jscx, pycx->global, pykey) <= 0) goto done;
if(!PyMapping_HasKey(pycx->global, pykey))
{
ret = JS_TRUE;
goto done;
}
if(!JS_ValueToId(jscx, key, &pid))
{
JS_ReportError(jscx, "Failed to convert property id.");
goto done;
}
if(!js_DefineProperty(jscx, pycx->root, pid, JSVAL_VOID, NULL, NULL,
JSPROP_SHARED, NULL))
{
JS_ReportError(jscx, "Failed to define property.");
goto done;
}
ret = JS_TRUE;
done:
Py_XDECREF(pykey);
return ret;
}
static JSBool
rpmmg_enumerate(JSContext *cx, JSObject *obj, JSIterateOp op,
jsval *statep, jsid *idp)
{
#ifdef NOTYET
void * ptr = JS_GetInstancePrivate(cx, obj, &rpmmgClass, NULL);
rpmmg mg = ptr;
struct dirent * dp;
unsigned int ix = 0;
#endif
_ENUMERATE_DEBUG_ENTRY(_debug < 0);
#ifdef NOTYET
switch (op) {
case JSENUMERATE_INIT:
if (idp)
*idp = JSVAL_ZERO;
*statep = INT_TO_JSVAL(ix);
if (_debug)
fprintf(stderr, "\tINIT mg %p\n", mg);
break;
case JSENUMERATE_NEXT:
ix = JSVAL_TO_INT(*statep);
if ((dp = Readdir(dir)) != NULL) {
(void) JS_DefineElement(cx, obj,
ix, STRING_TO_JSVAL(JS_NewStringCopyZ(cx, dp->d_name)),
NULL, NULL, JSPROP_ENUMERATE);
JS_ValueToId(cx, *statep, idp);
if (_debug)
fprintf(stderr, "\tNEXT mg %p[%u] dirent %p \"%s\"\n", mg, ix, dp, dp->d_name);
*statep = INT_TO_JSVAL(ix+1);
} else
*idp = JSVAL_VOID;
if (*idp != JSVAL_VOID)
break;
/*@fallthrough@*/
case JSENUMERATE_DESTROY:
ix = JSVAL_TO_INT(*statep);
(void) JS_DefineProperty(cx, obj, "length", INT_TO_JSVAL(ix),
NULL, NULL, JSPROP_ENUMERATE);
if (_debug)
fprintf(stderr, "\tFINI mg %p[%u]\n", mg, ix);
*statep = JSVAL_NULL;
break;
}
#else
*statep = JSVAL_NULL;
#endif
return JS_TRUE;
}
jsval
to_js_object(ErlNifEnv* env, JSContext* cx, ERL_NIF_TERM list)
{
JSObject* ret;
jsval kval;
jsval vval;
jsid idp;
ERL_NIF_TERM head;
ERL_NIF_TERM tail;
const ERL_NIF_TERM* pair;
int arity;
ret = JS_NewObject(cx, NULL, NULL, NULL);
if(ret == NULL) return JSVAL_VOID;
if(enif_is_empty_list(env, list))
{
return OBJECT_TO_JSVAL(ret);
}
if(!enif_get_list_cell(env, list, &head, &tail))
{
return JSVAL_VOID;
}
do {
if(!enif_get_tuple(env, head, &arity, &pair))
{
return JSVAL_VOID;
}
if(arity != 2)
{
return JSVAL_VOID;
}
kval = to_js_key(env, cx, pair[0]);
if(kval == JSVAL_VOID) return JSVAL_VOID;
if(!JS_ValueToId(cx, kval, &idp)) return JSVAL_VOID;
vval = to_js(env, cx, pair[1]);
if(vval == JSVAL_VOID) return JSVAL_VOID;
if(!JS_SetPropertyById(cx, ret, idp, &vval))
{
return JSVAL_VOID;
}
} while(enif_get_list_cell(env, tail, &head, &tail));
return OBJECT_TO_JSVAL(ret);
}
static JSBool
rpmdir_enumerate(JSContext *cx, JSObject *obj, JSIterateOp op,
jsval *statep, jsid *idp)
{
void * ptr = JS_GetInstancePrivate(cx, obj, &rpmdirClass, NULL);
DIR * dir = ptr;
struct dirent * dp;
unsigned int ix = 0;
/* XXX VG: JS_Enumerate (jsobj.c:4211) doesn't initialize some fields. */
_ENUMERATE_DEBUG_ENTRY(_debug < 0);
switch (op) {
case JSENUMERATE_INIT:
case JSENUMERATE_INIT_ALL:
if (idp)
*idp = JSVAL_ZERO;
*statep = INT_TO_JSVAL(ix);
if (_debug)
fprintf(stderr, "\tINIT dir %p\n", dir);
break;
case JSENUMERATE_NEXT:
ix = JSVAL_TO_INT(*statep);
if ((dp = Readdir(dir)) != NULL) {
(void) JS_DefineElement(cx, obj,
ix, STRING_TO_JSVAL(JS_NewStringCopyZ(cx, dp->d_name)),
NULL, NULL, JSPROP_ENUMERATE);
JS_ValueToId(cx, *statep, idp);
if (_debug)
fprintf(stderr, "\tNEXT dir %p[%u] dirent %p \"%s\"\n", dir, ix, dp, dp->d_name);
*statep = INT_TO_JSVAL(ix+1);
} else
*idp = JSVAL_VOID;
if (!JSID_IS_VOID(*idp))
break;
/*@fallthrough@*/
case JSENUMERATE_DESTROY:
ix = JSVAL_TO_INT(*statep);
(void) JS_DefineProperty(cx, obj, "length", INT_TO_JSVAL(ix),
NULL, NULL, JSPROP_ENUMERATE);
if (_debug)
fprintf(stderr, "\tFINI dir %p[%u]\n", dir, ix);
*statep = JSVAL_NULL;
break;
}
return JS_TRUE;
}
JSBool
XPCJSRuntime::GenerateStringIDs(JSContext* cx)
{
NS_PRECONDITION(!mStrIDs[0],"string ids generated twice!");
for(uintN i = 0; i < IDX_TOTAL_COUNT; i++)
{
JSString* str = JS_InternString(cx, mStrings[i]);
if(!str || !JS_ValueToId(cx, STRING_TO_JSVAL(str), &mStrIDs[i]))
{
mStrIDs[0] = 0;
return JS_FALSE;
}
mStrJSVals[i] = STRING_TO_JSVAL(str);
}
return JS_TRUE;
}
PyObject*
Context_rem_global(Context* self, PyObject* args, PyObject* kwargs)
{
PyObject* pykey = NULL;
PyObject* ret = NULL;
jsval jsk;
jsid kid;
jsval jsv;
JS_BeginRequest(self->cx);
if(!PyArg_ParseTuple(args, "O", &pykey)) goto error;
jsk = py2js(self, pykey);
if(jsk == JSVAL_VOID) goto error;
if(!JS_ValueToId(self->cx, jsk, &kid))
{
PyErr_SetString(JSError, "Failed to create key id.");
}
if(!js_GetProperty(self->cx, self->root, kid, &jsv))
{
PyErr_SetString(JSError, "Failed to get global property.");
goto error;
}
ret = js2py(self, jsv);
if(ret == NULL) goto error;
if(!js_DeleteProperty(self->cx, self->root, kid, &jsv))
{
PyErr_SetString(JSError, "Failed to remove global property.");
goto error;
}
JS_MaybeGC(self->cx);
goto success;
error:
success:
JS_EndRequest(self->cx);
return ret;
}
static JSBool
DefineGetterOrSetter(JSContext *cx, uintN argc, JSBool wantGetter, jsval *vp)
{
uintN attrs;
JSBool found;
JSPropertyOp getter, setter;
JSObject *obj2;
jsval v;
jsid interned_id;
XPC_QS_ASSERT_CONTEXT_OK(cx);
JSObject *obj = JS_THIS_OBJECT(cx, vp);
if (!obj)
return JS_FALSE;
JSFastNative forward = wantGetter ? js_obj_defineGetter : js_obj_defineSetter;
jsval id = (argc >= 1) ? JS_ARGV(cx, vp)[0] : JSVAL_VOID;
if(!JSVAL_IS_STRING(id))
return forward(cx, argc, vp);
JSString *str = JSVAL_TO_STRING(id);
const char *name = JS_GetStringBytes(str);
if(!JS_ValueToId(cx, id, &interned_id) ||
!JS_LookupPropertyWithFlagsById(cx, obj, interned_id,
JSRESOLVE_QUALIFIED, &obj2, &v) ||
(obj2 &&
!JS_GetPropertyAttrsGetterAndSetterById(cx, obj2, interned_id, &attrs,
&found, &getter, &setter)))
return JS_FALSE;
// The property didn't exist, already has a getter or setter, or is not
// our property, then just forward now.
if(!obj2 ||
(attrs & (JSPROP_GETTER | JSPROP_SETTER)) ||
!(getter || setter) ||
!IS_PROTO_CLASS(STOBJ_GET_CLASS(obj2)))
return forward(cx, argc, vp);
// Reify the getter and setter...
if(!ReifyPropertyOps(cx, obj, id, interned_id, name, getter, setter,
nsnull, nsnull))
return JS_FALSE;
return forward(cx, argc, vp);
}
static JSBool
perlarray_enumerate(
JSContext *cx,
JSObject *obj,
JSIterateOp enum_op,
jsval *statep,
jsid *idp
) {
dTHX;
SV *ref = (SV *)JS_GetPrivate(cx, obj);
AV *av = (AV *)SvRV(ref);
PJS_ARRAY_CHECK
if(enum_op == JSENUMERATE_INIT) {
SV *cc = newSViv(0);
*statep = PRIVATE_TO_JSVAL(cc);
if(idp) {
I32 alen = av_len(av);
*idp = INT_TO_JSVAL(alen + 1);
}
return JS_TRUE;
}
if(enum_op == JSENUMERATE_NEXT) {
SV *cc = (SV *)JSVAL_TO_PRIVATE(*statep);
I32 alen = av_len(av);
I32 curr;
if(!SvIOK(cc)) {
JS_ReportError(cx, "Wrong Array iterator");
return JS_FALSE;
}
curr = (I32)SvIVX(cc);
if(curr > alen) { // At end
*statep = JSVAL_NULL;
sv_free(cc);
} else {
jsval key = INT_TO_JSVAL(curr);
SvIV_set(cc, (IV)(curr+1));
return JS_ValueToId(cx, key, idp);
}
}
return JS_TRUE;
}
JSBool JavaObject::enumerate(JSContext* ctx, JSObject* obj, JSIterateOp op,
jsval* statep, jsid* idp) {
int objectId = JavaObject::getObjectId(ctx, obj);
switch (op) {
case JSENUMERATE_INIT:
Debug::log(Debug::Spam) << "JavaObject::enumerate(oid=" << objectId
<< ", INIT)" << Debug::flush;
*statep = JSVAL_ZERO;
if (idp) {
*idp = INT_TO_JSID(NUM_PROPERTY_NAMES);
}
break;
case JSENUMERATE_NEXT:
{
int idNum = JSVAL_TO_INT(*statep);
Debug::log(Debug::Spam) << "JavaObject::enumerate(oid=" << objectId
<< ", NEXT " << idNum << ")" << Debug::flush;
*statep = INT_TO_JSVAL(idNum + 1);
if (idNum >= NUM_PROPERTY_NAMES) {
*statep = JSVAL_NULL;
#if GECKO_VERSION < 2000
//TODO(jat): do we need to do this?
*idp = JSVAL_NULL;
#endif //GECKO_VERSION
} else {
const char* propName = propertyNames[idNum];
JSString* str = JS_NewStringCopyZ(ctx, propName);
return JS_ValueToId(ctx, STRING_TO_JSVAL(str), idp);
}
break;
}
case JSENUMERATE_DESTROY:
Debug::log(Debug::Spam) << "JavaObject::enumerate(oid=" << objectId
<< ", DESTROY)" << Debug::flush;
*statep = JSVAL_NULL;
break;
default:
Debug::log(Debug::Error) << "Unknown Enumerate op " <<
static_cast<int>(op) << Debug::flush;
return JS_FALSE;
}
return JS_TRUE;
}
static JSBool
XPC_COW_AddProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
obj = GetWrapper(obj);
jsval resolving;
if (!JS_GetReservedSlot(cx, obj, XPCWrapper::sFlagsSlot, &resolving)) {
return JS_FALSE;
}
if (HAS_FLAGS(resolving, FLAG_RESOLVING)) {
// Allow us to define a property on ourselves.
return JS_TRUE;
}
// Someone's adding a property to us. We need to protect ourselves from
// getters and setters.
JSObject *wrappedObj = GetWrappedObject(cx, obj);
if (!wrappedObj) {
return ThrowException(NS_ERROR_ILLEGAL_VALUE, cx);
}
jsid interned_id;
JSPropertyDescriptor desc;
if (!JS_ValueToId(cx, id, &interned_id) ||
!XPCWrapper::GetPropertyAttrs(cx, obj, interned_id, JSRESOLVE_QUALIFIED,
JS_TRUE, &desc)) {
return JS_FALSE;
}
NS_ASSERTION(desc.obj == obj, "The JS engine lies!");
if (desc.attrs & (JSPROP_GETTER | JSPROP_SETTER)) {
// Only chrome is allowed to add getters or setters to our object.
if (!AllowedToAct(cx, id)) {
return JS_FALSE;
}
}
return XPC_COW_RewrapForChrome(cx, obj, vp) &&
JS_DefinePropertyById(cx, wrappedObj, interned_id, *vp,
desc.getter, desc.setter, desc.attrs);
}
JSBool
XPCJSRuntime::OnJSContextNew(JSContext *cx)
{
NS_TIME_FUNCTION;
// if it is our first context then we need to generate our string ids
JSBool ok = JS_TRUE;
if(JSID_IS_VOID(mStrIDs[0]))
{
JS_SetGCParameterForThread(cx, JSGC_MAX_CODE_CACHE_BYTES, 16 * 1024 * 1024);
JSAutoRequest ar(cx);
for(uintN i = 0; i < IDX_TOTAL_COUNT; i++)
{
JSString* str = JS_InternString(cx, mStrings[i]);
if(!str || !JS_ValueToId(cx, STRING_TO_JSVAL(str), &mStrIDs[i]))
{
mStrIDs[0] = JSID_VOID;
ok = JS_FALSE;
break;
}
mStrJSVals[i] = STRING_TO_JSVAL(str);
}
}
if (!ok)
return JS_FALSE;
XPCPerThreadData* tls = XPCPerThreadData::GetData(cx);
if(!tls)
return JS_FALSE;
XPCContext* xpc = new XPCContext(this, cx);
if (!xpc)
return JS_FALSE;
JS_SetNativeStackQuota(cx, 128 * sizeof(size_t) * 1024);
JS_SetScriptStackQuota(cx, 25 * sizeof(size_t) * 1024 * 1024);
// we want to mark the global object ourselves since we use a different color
JS_ToggleOptions(cx, JSOPTION_UNROOTED_GLOBAL);
return JS_TRUE;
}
static JSBool
LookupGetterOrSetter(JSContext *cx, JSBool wantGetter, uintN argc, jsval *vp)
{
XPC_QS_ASSERT_CONTEXT_OK(cx);
if(argc == 0)
{
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return JS_TRUE;
}
JSObject *obj = JS_THIS_OBJECT(cx, vp);
if(!obj)
return JS_FALSE;
jsval idval = JS_ARGV(cx, vp)[0];
jsid interned_id;
JSPropertyDescriptor desc;
if(!JS_ValueToId(cx, idval, &interned_id) ||
!JS_GetPropertyDescriptorById(cx, obj, interned_id, JSRESOLVE_QUALIFIED, &desc))
return JS_FALSE;
// No property at all means no getters or setters possible.
if(!desc.obj)
{
JS_SET_RVAL(cx, vp, JSVAL_VOID);
return JS_TRUE;
}
// Inline obj_lookup[GS]etter here.
if(wantGetter)
{
if(desc.attrs & JSPROP_GETTER)
{
JS_SET_RVAL(cx, vp,
OBJECT_TO_JSVAL(JS_FUNC_TO_DATA_PTR(JSObject *, desc.getter)));
return JS_TRUE;
}
}
PyObject*
Context_add_global(Context* self, PyObject* args, PyObject* kwargs)
{
PyObject* pykey = NULL;
PyObject* pyval = NULL;
jsval jsk;
jsid kid;
jsval jsv;
JS_BeginRequest(self->cx);
if(!PyArg_ParseTuple(args, "OO", &pykey, &pyval)) goto error;
jsk = py2js(self, pykey);
if(jsk == JSVAL_VOID) goto error;
if(!JS_ValueToId(self->cx, jsk, &kid))
{
PyErr_SetString(PyExc_AttributeError, "Failed to create key id.");
goto error;
}
jsv = py2js(self, pyval);
if(jsv == JSVAL_VOID) goto error;
if(!js_SetProperty(self->cx, self->root, kid, &jsv))
{
PyErr_SetString(PyExc_AttributeError, "Failed to set global property.");
goto error;
}
goto success;
error:
success:
JS_EndRequest(self->cx);
Py_RETURN_NONE;
}
JSBool
XPCJSRuntime::OnJSContextNew(JSContext *cx)
{
NS_TIME_FUNCTION;
// if it is our first context then we need to generate our string ids
JSBool ok = JS_TRUE;
if(!mStrIDs[0])
{
JS_SetGCParameterForThread(cx, JSGC_MAX_CODE_CACHE_BYTES, 16 * 1024 * 1024);
JSAutoRequest ar(cx);
for(uintN i = 0; i < IDX_TOTAL_COUNT; i++)
{
JSString* str = JS_InternString(cx, mStrings[i]);
if(!str || !JS_ValueToId(cx, STRING_TO_JSVAL(str), &mStrIDs[i]))
{
mStrIDs[0] = 0;
ok = JS_FALSE;
break;
}
mStrJSVals[i] = STRING_TO_JSVAL(str);
}
}
if (!ok)
return JS_FALSE;
XPCPerThreadData* tls = XPCPerThreadData::GetData(cx);
if(!tls)
return JS_FALSE;
XPCContext* xpc = new XPCContext(this, cx);
if (!xpc)
return JS_FALSE;
JS_SetNativeStackQuota(cx, 512 * 1024);
JS_SetScriptStackQuota(cx, 100 * 1024 * 1024);
return JS_TRUE;
}
/* PRBool resolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in JSVal id); */
NS_IMETHODIMP
nsJSIID::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * obj,
jsval id, PRUint32 flags,
JSObject * *objp, PRBool *_retval)
{
XPCCallContext ccx(JS_CALLER, cx);
AutoMarkingNativeInterfacePtr iface(ccx);
const nsIID* iid;
mInfo->GetIIDShared(&iid);
iface = XPCNativeInterface::GetNewOrUsed(ccx, iid);
if(!iface)
return NS_OK;
XPCNativeMember* member = iface->FindMember(id);
if(member && member->IsConstant())
{
jsval val;
if(!member->GetConstantValue(ccx, iface, &val))
return NS_ERROR_OUT_OF_MEMORY;
jsid idid;
if(!JS_ValueToId(cx, id, &idid))
return NS_ERROR_OUT_OF_MEMORY;
*objp = obj;
*_retval = JS_DefinePropertyById(cx, obj, idid, val, nsnull, nsnull,
JSPROP_ENUMERATE | JSPROP_READONLY |
JSPROP_PERMANENT);
}
return NS_OK;
}
JSDProperty*
jsd_GetValueProperty(JSDContext* jsdc, JSDValue* jsdval, JSString* name)
{
JSContext* cx = jsdc->dumbContext;
JSDProperty* jsdprop;
JSDProperty* iter = NULL;
JSObject* obj;
uintN attrs = 0;
JSBool found;
JSPropertyDesc pd;
const jschar * nameChars;
size_t nameLen;
jsval val, nameval;
jsid nameid;
JSCrossCompartmentCall *call = NULL;
if(!jsd_IsValueObject(jsdc, jsdval))
return NULL;
/* If we already have the prop, then return it */
while(NULL != (jsdprop = jsd_IterateProperties(jsdc, jsdval, &iter)))
{
JSString* propName = jsd_GetValueString(jsdc, jsdprop->name);
if(propName) {
intN result;
if (JS_CompareStrings(cx, propName, name, &result) && !result)
return jsdprop;
}
JSD_DropProperty(jsdc, jsdprop);
}
/* Not found in property list, look it up explicitly */
if(!(obj = JSVAL_TO_OBJECT(jsdval->val)))
return NULL;
if (!(nameChars = JS_GetStringCharsZAndLength(cx, name, &nameLen)))
return NULL;
JS_BeginRequest(cx);
call = JS_EnterCrossCompartmentCall(cx, obj);
if(!call) {
JS_EndRequest(cx);
return NULL;
}
JS_GetUCPropertyAttributes(cx, obj, nameChars, nameLen, &attrs, &found);
if (!found)
{
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return NULL;
}
JS_ClearPendingException(cx);
if(!JS_GetUCProperty(cx, obj, nameChars, nameLen, &val))
{
if (JS_IsExceptionPending(cx))
{
if (!JS_GetPendingException(cx, &pd.value))
{
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
return NULL;
}
pd.flags = JSPD_EXCEPTION;
}
else
{
pd.flags = JSPD_ERROR;
pd.value = JSVAL_VOID;
}
}
else
{
pd.value = val;
}
JS_LeaveCrossCompartmentCall(call);
JS_EndRequest(cx);
nameval = STRING_TO_JSVAL(name);
if (!JS_ValueToId(cx, nameval, &nameid) ||
!JS_IdToValue(cx, nameid, &pd.id)) {
return NULL;
}
pd.slot = pd.spare = 0;
pd.alias = JSVAL_NULL;
pd.flags |= (attrs & JSPROP_ENUMERATE) ? JSPD_ENUMERATE : 0
| (attrs & JSPROP_READONLY) ? JSPD_READONLY : 0
| (attrs & JSPROP_PERMANENT) ? JSPD_PERMANENT : 0;
return _newProperty(jsdc, &pd, JSDPD_HINTED);
}
