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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
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tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /WebKitTools/DumpRenderTree/mac/ObjCPlugin.m
parenta65af38181ac7d34544586bdb5cd004de93897ad (diff)
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diff --git a/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m b/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m
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--- a/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m
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-/*
- * Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
- * Copyright (C) 2006 James G. Speth (speth@end.com)
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#import "ObjCPlugin.h"
-#import <objc/objc-runtime.h>
-#import <WebKit/WebKit.h>
-
-
-// === NSObject category to expose almost everything to JavaScript ===
-
-// Warning: this class introduces huge security weaknesses, and should only be used
-// for testing inside of DumpRenderTree, and only with trusted code. By default, it has
-// the same restrictive behavior as the standard WebKit setup. However, scripts can use the
-// plugin's removeBridgeRestrictions: method to open up almost total access to the Cocoa
-// frameworks.
-
-static BOOL _allowsScriptsFullAccess = NO;
-
-@interface NSObject (ObjCScriptAccess)
-
-+ (void)setAllowsScriptsFullAccess:(BOOL)value;
-+ (BOOL)allowsScriptsFullAccess;
-
-@end
-
-@implementation NSObject (ObjCScriptAccess)
-
-+ (void)setAllowsScriptsFullAccess:(BOOL)value
-{
- _allowsScriptsFullAccess = value;
-}
-
-+ (BOOL)allowsScriptsFullAccess
-{
- return _allowsScriptsFullAccess;
-}
-
-+ (BOOL)isSelectorExcludedFromWebScript:(SEL)selector
-{
- return !_allowsScriptsFullAccess;
-}
-
-+ (NSString *)webScriptNameForSelector:(SEL)selector
-{
- return nil;
-}
-
-@end
-
-@interface JSObjC : NSObject {
-}
-
-// expose some useful objc functions to the scripting environment
-- (id)lookUpClass:(NSString *)name;
-- (void)log:(NSString *)message;
-- (id)retainObject:(id)obj;
-- (id)classOfObject:(id)obj;
-- (NSString *)classNameOfObject:(id)obj;
-
-@end
-
-@implementation JSObjC
-
-+ (BOOL)isSelectorExcludedFromWebScript:(SEL)selector
-{
- return NO;
-}
-
-+ (NSString *)webScriptNameForSelector:(SEL)selector
-{
- return nil;
-}
-
-- (id)invokeDefaultMethodWithArguments:(NSArray *)args
-{
- // this is a useful shortcut for accessing objective-c classes from the scripting
- // environment, e.g. 'var myObject = objc("NSObject").alloc().init();'
- if ([args count] == 1)
- return [self lookUpClass:[args objectAtIndex:0]];
- return nil;
-}
-
-- (id)lookUpClass:(NSString *)name
-{
- return NSClassFromString(name);
-}
-
-- (void)log:(NSString *)message
-{
- NSLog(@"%@", message);
-}
-
-- (id)retainObject:(id)obj
-{
- return [obj retain];
-}
-
-- (id)classOfObject:(id)obj
-{
- return (id)[obj class];
-}
-
-- (NSString *)classNameOfObject:(id)obj
-{
- return [obj className];
-}
-
-@end
-
-@implementation ObjCPlugin
-
-+ (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector
-{
- if (aSelector == @selector(removeBridgeRestrictions:))
- return NO;
-
- if (aSelector == @selector(echo:))
- return NO;
-
- if (aSelector == @selector(throwIfArgumentIsNotHello:))
- return NO;
-
- return YES;
-}
-
-+ (NSString *)webScriptNameForSelector:(SEL)aSelector
-{
- if (aSelector == @selector(echo:))
- return @"echo";
-
- if (aSelector == @selector(throwIfArgumentIsNotHello:))
- return @"throwIfArgumentIsNotHello";
-
- return nil;
-}
-
-+ (NSString *)webScriptNameForKey:(const char *)key
-{
- if (strcmp(key, "throwOnDealloc") == 0)
- return @"throwOnDealloc";
-
- return nil;
-}
-
-+ (BOOL)isKeyExcludedFromWebScript:(const char *)key
-{
- if (strcmp(key, "throwOnDealloc") == 0)
- return NO;
-
- return YES;
-}
-
-- (void)removeBridgeRestrictions:(id)container
-{
- // let scripts invoke any selector
- [NSObject setAllowsScriptsFullAccess:YES];
-
- // store a JSObjC instance into the provided container
- JSObjC *objc = [[JSObjC alloc] init];
- [container setValue:objc forKey:@"objc"];
- [objc release];
-}
-
-- (id)echo:(id)obj
-{
- return obj;
-}
-
-- (void)throwIfArgumentIsNotHello:(NSString *)str
-{
- if (![str isEqualToString:@"Hello"])
- [WebScriptObject throwException:[NSString stringWithFormat:@"%@ != Hello", str]];
-}
-
-- (void)dealloc
-{
- if (throwOnDealloc)
- [WebScriptObject throwException:@"Throwing exception on dealloc of ObjCPlugin"];
-
- [super dealloc];
-}
-
-@end