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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* 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 APPLE INC. AND ITS CONTRIBUTORS ``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 APPLE INC. OR ITS 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.
*/
#pragma once
#if ENABLE(WK_WEB_EXTENSIONS)
#import "WebExtensionError.h"
#import <JavaScriptCore/JSBase.h>
#ifdef __OBJC__
#import <wtf/RetainPtr.h>
#import <wtf/cocoa/VectorCocoa.h>
#endif
namespace WebKit {
#ifdef __OBJC__
/// Verifies that a dictionary:
/// - Contains a required set of string keys, as listed in `requiredKeys`, all other types specified in `keyTypes` are optional keys.
/// - Has values that are the appropriate type for each key, as specified by `keyTypes`. The keys in this dictionary
/// correspond to keys in the original dictionary being validated, and the values in `keyTypes` may be:
/// - A `Class`, that the value in the original dictionary must be a kind of.
/// - An `NSArray` containing one class, specifying that the value in the original dictionary must be an array with elements that are a kind of the specified class.
/// - An `NSOrderedSet` containing one or more classes or arrays, specifying the value in the dictionary should be of any classes in the set or their subclasses.
/// - The `callingAPIName` and `sourceKey` parameters are used to reference the object within a larger context. When an error occurs, this key helps identify the source of the problem in the `outExceptionString`.
/// If the dictionary is valid, returns `YES`. Otherwise returns `NO` and sets `outExceptionString` to a message describing what validation failed.
bool validateDictionary(NSDictionary<NSString *, id> *, NSString *sourceKey, NSArray<NSString *> *requiredKeys, NSDictionary<NSString *, id> *keyTypes, NSString **outExceptionString);
/// Verifies a single object against a certain type criteria:
/// - Checks that the object matches the type defined in `valueTypes`. The `valueTypes` can be:
/// - A `Class`, indicating the object should be of this class or its subclass.
/// - An `NSArray` containing one class, meaning the object must be an array with elements that are a kind of the specified class.
/// - An `NSOrderedSet` containing one or more classes or arrays, specifying that the object should be of any class in the set or their subclasses.
/// - The `callingAPIName` and `sourceKey` parameters are used to reference the object within a larger context. When an error occurs, this key helps identify the source of the problem in the `outExceptionString`.
/// If the object is valid, returns `YES`. Otherwise returns `NO` and sets `outExceptionString` to a message describing what validation failed.
bool validateObject(NSObject *, NSString *sourceKey, id valueTypes, NSString **outExceptionString);
/// Returns a concatenated error string that combines the provided information into a single, descriptive message.
NSString *toErrorString(NSString *callingAPIName, NSString *sourceKey, NSString *underlyingErrorString, ...) NS_FORMAT_ARGUMENT(3);
/// Returns an error object that combines the provided information into a single, descriptive message.
JSObjectRef toJSError(JSContextRef, NSString *callingAPIName, NSString *sourceKey, NSString *underlyingErrorString);
/// Returns a rejected Promise object that combines the provided information into a single, descriptive error message.
JSObjectRef toJSRejectedPromise(JSContextRef, NSString *callingAPIName, NSString *sourceKey, NSString *underlyingErrorString);
NSString *toWebAPI(NSLocale *);
/// Returns the storage size of a string.
size_t storageSizeOf(NSString *);
/// Returns the storage size of all of the key value pairs in a dictionary.
size_t storageSizeOf(NSDictionary<NSString *, NSString *> *);
/// Returns true if the size of any item in the dictionary exceeds the given quota.
bool anyItemsExceedQuota(NSDictionary *, size_t quota, NSString **outKeyWithError = nullptr);
enum class UseNullValue : bool { No, Yes };
template<typename T>
id toWebAPI(const std::optional<T>& result, UseNullValue useNull = UseNullValue::Yes)
{
if (!result)
return useNull == UseNullValue::Yes ? NSNull.null : nil;
return toWebAPI(result.value());
}
template<typename T>
NSArray *toWebAPI(const Vector<T>& items)
{
return createNSArray(items, [](const T& item) {
return toWebAPI(item);
}).get();
}
inline NSNumber *toWebAPI(size_t index)
{
return index != notFound ? @(index) : @(std::numeric_limits<double>::quiet_NaN());
}
/// Returns an error for Expected results in CompletionHandler.
template<typename... Args>
Unexpected<WebExtensionError> toWebExtensionError(NSString *callingAPIName, NSString *sourceKey, NSString *underlyingErrorString, Args&&... args)
{
return makeUnexpected(String(toErrorString(callingAPIName, sourceKey, underlyingErrorString, std::forward<Args>(args)...)));
}
#endif // __OBJC__
} // namespace WebKit
#endif // ENABLE(WK_WEB_EXTENSIONS)
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