auto import from //depot/cupcake/@135843

1 files changed, 206 insertions, 0 deletions

diff --git a/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m b/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m
new file mode 100644
index 0000000..3ec3e74
--- /dev/null
+++ b/WebKitTools/DumpRenderTree/mac/ObjCPlugin.m
@@ -0,0 +1,206 @@
+/*
+ * 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