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js/jsd/jsd_obj.cpp@129ffea94266 (annotated)

js/jsd/jsd_obj.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0	2	* vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0	3	* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	4	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	5	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	6
michael@0	7	/*
michael@0	8	* JavaScript Debugging support - Object support
michael@0	9	*/
michael@0	10
michael@0	11	#include "jsd.h"
michael@0	12
michael@0	13	/*
michael@0	14	* #define JSD_TRACE 1
michael@0	15	*/
michael@0	16
michael@0	17	#ifdef JSD_TRACE
michael@0	18	#define TRACEOBJ(jsdc, jsdobj, which) _traceObj(jsdc, jsdobj, which)
michael@0	19
michael@0	20	static char *
michael@0	21	_describeObj(JSDContext* jsdc, JSDObject *jsdobj)
michael@0	22	{
michael@0	23	return
michael@0	24	JS_smprintf("%0x new'd in %s at line %d using ctor %s in %s at line %d",
michael@0	25	(int)jsdobj,
michael@0	26	JSD_GetObjectNewURL(jsdc, jsdobj),
michael@0	27	JSD_GetObjectNewLineNumber(jsdc, jsdobj),
michael@0	28	JSD_GetObjectConstructorName(jsdc, jsdobj),
michael@0	29	JSD_GetObjectConstructorURL(jsdc, jsdobj),
michael@0	30	JSD_GetObjectConstructorLineNumber(jsdc, jsdobj));
michael@0	31	}
michael@0	32
michael@0	33	static void
michael@0	34	_traceObj(JSDContext* jsdc, JSDObject* jsdobj, int which)
michael@0	35	{
michael@0	36	char* description;
michael@0	37
michael@0	38	if( !jsdobj )
michael@0	39	return;
michael@0	40
michael@0	41	description = _describeObj(jsdc, jsdobj);
michael@0	42
michael@0	43	printf("%s : %s\n",
michael@0	44	which == 0 ? "new " :
michael@0	45	which == 1 ? "final" :
michael@0	46	"ctor ",
michael@0	47	description);
michael@0	48	if(description)
michael@0	49	free(description);
michael@0	50	}
michael@0	51	#else
michael@0	52	#define TRACEOBJ(jsdc, jsdobj, which) ((void)0)
michael@0	53	#endif /* JSD_TRACE */
michael@0	54
michael@0	55	#ifdef DEBUG
michael@0	56	void JSD_ASSERT_VALID_OBJECT(JSDObject* jsdobj)
michael@0	57	{
michael@0	58	MOZ_ASSERT(jsdobj);
michael@0	59	MOZ_ASSERT(!JS_CLIST_IS_EMPTY(&jsdobj->links));
michael@0	60	MOZ_ASSERT(jsdobj->obj);
michael@0	61	}
michael@0	62	#endif
michael@0	63
michael@0	64
michael@0	65	static void
michael@0	66	_destroyJSDObject(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	67	{
michael@0	68	MOZ_ASSERT(JSD_OBJECTS_LOCKED(jsdc));
michael@0	69
michael@0	70	JS_REMOVE_LINK(&jsdobj->links);
michael@0	71	JS_HashTableRemove(jsdc->objectsTable, jsdobj->obj);
michael@0	72
michael@0	73	if(jsdobj->newURL)
michael@0	74	jsd_DropAtom(jsdc, jsdobj->newURL);
michael@0	75	if(jsdobj->ctorURL)
michael@0	76	jsd_DropAtom(jsdc, jsdobj->ctorURL);
michael@0	77	if(jsdobj->ctorName)
michael@0	78	jsd_DropAtom(jsdc, jsdobj->ctorName);
michael@0	79	free(jsdobj);
michael@0	80	}
michael@0	81
michael@0	82	void
michael@0	83	jsd_Constructing(JSDContext* jsdc, JSContext *cx, JSObject *obj,
michael@0	84	JSAbstractFramePtr frame)
michael@0	85	{
michael@0	86	JSDObject* jsdobj;
michael@0	87	JS::RootedScript script(cx);
michael@0	88	JSDScript* jsdscript;
michael@0	89	const char* ctorURL;
michael@0	90	JSString* ctorNameStr;
michael@0	91	const char* ctorName;
michael@0	92
michael@0	93	JSD_LOCK_OBJECTS(jsdc);
michael@0	94	jsdobj = jsd_GetJSDObjectForJSObject(jsdc, obj);
michael@0	95	if( jsdobj && !jsdobj->ctorURL )
michael@0	96	{
michael@0	97	script = frame.script();
michael@0	98	if( script )
michael@0	99	{
michael@0	100	ctorURL = JS_GetScriptFilename(script);
michael@0	101	if( ctorURL )
michael@0	102	jsdobj->ctorURL = jsd_AddAtom(jsdc, ctorURL);
michael@0	103
michael@0	104	JSD_LOCK_SCRIPTS(jsdc);
michael@0	105	jsdscript = jsd_FindOrCreateJSDScript(jsdc, cx, script, frame);
michael@0	106	JSD_UNLOCK_SCRIPTS(jsdc);
michael@0	107	if( jsdscript && (ctorNameStr = jsd_GetScriptFunctionId(jsdc, jsdscript)) ) {
michael@0	108	if( (ctorName = JS_EncodeString(cx, ctorNameStr)) ) {
michael@0	109	jsdobj->ctorName = jsd_AddAtom(jsdc, ctorName);
michael@0	110	JS_free(cx, (void *) ctorName);
michael@0	111	}
michael@0	112	}
michael@0	113	jsdobj->ctorLineno = JS_GetScriptBaseLineNumber(cx, script);
michael@0	114	}
michael@0	115	}
michael@0	116	TRACEOBJ(jsdc, jsdobj, 3);
michael@0	117	JSD_UNLOCK_OBJECTS(jsdc);
michael@0	118	}
michael@0	119
michael@0	120	static JSHashNumber
michael@0	121	_hash_root(const void *key)
michael@0	122	{
michael@0	123	return ((JSHashNumber)(ptrdiff_t) key) >> 2; /* help lame MSVC1.5 on Win16 */
michael@0	124	}
michael@0	125
michael@0	126	bool
michael@0	127	jsd_InitObjectManager(JSDContext* jsdc)
michael@0	128	{
michael@0	129	JS_INIT_CLIST(&jsdc->objectsList);
michael@0	130	jsdc->objectsTable = JS_NewHashTable(256, _hash_root,
michael@0	131	JS_CompareValues, JS_CompareValues,
michael@0	132	nullptr, nullptr);
michael@0	133	return !!jsdc->objectsTable;
michael@0	134	}
michael@0	135
michael@0	136	void
michael@0	137	jsd_DestroyObjectManager(JSDContext* jsdc)
michael@0	138	{
michael@0	139	jsd_DestroyObjects(jsdc);
michael@0	140	JSD_LOCK_OBJECTS(jsdc);
michael@0	141	JS_HashTableDestroy(jsdc->objectsTable);
michael@0	142	JSD_UNLOCK_OBJECTS(jsdc);
michael@0	143	}
michael@0	144
michael@0	145	void
michael@0	146	jsd_DestroyObjects(JSDContext* jsdc)
michael@0	147	{
michael@0	148	JSD_LOCK_OBJECTS(jsdc);
michael@0	149	while( !JS_CLIST_IS_EMPTY(&jsdc->objectsList) )
michael@0	150	_destroyJSDObject(jsdc, (JSDObject*)JS_NEXT_LINK(&jsdc->objectsList));
michael@0	151	JSD_UNLOCK_OBJECTS(jsdc);
michael@0	152	}
michael@0	153
michael@0	154	JSDObject*
michael@0	155	jsd_IterateObjects(JSDContext* jsdc, JSDObject** iterp)
michael@0	156	{
michael@0	157	JSDObject *jsdobj = *iterp;
michael@0	158
michael@0	159	MOZ_ASSERT(JSD_OBJECTS_LOCKED(jsdc));
michael@0	160
michael@0	161	if( !jsdobj )
michael@0	162	jsdobj = (JSDObject *)jsdc->objectsList.next;
michael@0	163	if( jsdobj == (JSDObject *)&jsdc->objectsList )
michael@0	164	return nullptr;
michael@0	165	*iterp = (JSDObject*) jsdobj->links.next;
michael@0	166	return jsdobj;
michael@0	167	}
michael@0	168
michael@0	169	JSObject*
michael@0	170	jsd_GetWrappedObject(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	171	{
michael@0	172	return jsdobj->obj;
michael@0	173	}
michael@0	174
michael@0	175	const char*
michael@0	176	jsd_GetObjectNewURL(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	177	{
michael@0	178	if( jsdobj->newURL )
michael@0	179	return JSD_ATOM_TO_STRING(jsdobj->newURL);
michael@0	180	return nullptr;
michael@0	181	}
michael@0	182
michael@0	183	unsigned
michael@0	184	jsd_GetObjectNewLineNumber(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	185	{
michael@0	186	return jsdobj->newLineno;
michael@0	187	}
michael@0	188
michael@0	189	const char*
michael@0	190	jsd_GetObjectConstructorURL(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	191	{
michael@0	192	if( jsdobj->ctorURL )
michael@0	193	return JSD_ATOM_TO_STRING(jsdobj->ctorURL);
michael@0	194	return nullptr;
michael@0	195	}
michael@0	196
michael@0	197	unsigned
michael@0	198	jsd_GetObjectConstructorLineNumber(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	199	{
michael@0	200	return jsdobj->ctorLineno;
michael@0	201	}
michael@0	202
michael@0	203	const char*
michael@0	204	jsd_GetObjectConstructorName(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	205	{
michael@0	206	if( jsdobj->ctorName )
michael@0	207	return JSD_ATOM_TO_STRING(jsdobj->ctorName);
michael@0	208	return nullptr;
michael@0	209	}
michael@0	210
michael@0	211	JSDObject*
michael@0	212	jsd_GetJSDObjectForJSObject(JSDContext* jsdc, JSObject* jsobj)
michael@0	213	{
michael@0	214	JSDObject* jsdobj;
michael@0	215
michael@0	216	JSD_LOCK_OBJECTS(jsdc);
michael@0	217	jsdobj = (JSDObject*) JS_HashTableLookup(jsdc->objectsTable, jsobj);
michael@0	218	JSD_UNLOCK_OBJECTS(jsdc);
michael@0	219	return jsdobj;
michael@0	220	}
michael@0	221
michael@0	222	JSDObject*
michael@0	223	jsd_GetObjectForValue(JSDContext* jsdc, JSDValue* jsdval)
michael@0	224	{
michael@0	225	return jsd_GetJSDObjectForJSObject(jsdc, JSVAL_TO_OBJECT(jsdval->val));
michael@0	226	}
michael@0	227
michael@0	228	JSDValue*
michael@0	229	jsd_GetValueForObject(JSDContext* jsdc, JSDObject* jsdobj)
michael@0	230	{
michael@0	231	return jsd_NewValue(jsdc, OBJECT_TO_JSVAL(jsdobj->obj));
michael@0	232	}
michael@0	233
michael@0	234