/*

 * Copyright (C) 2007, 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. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE 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 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.

 */

#import "config.h"

#import "ResourceLoadDelegate.h"

#import "DumpRenderTree.h"

#import "LayoutTestController.h"

#import <WebKit/WebKit.h>

#import <WebKit/WebTypesInternal.h>

#import <WebKit/WebDataSourcePrivate.h>

#import <wtf/Assertions.h>

using namespace std;

@interface NSURL (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult;

@end

@interface NSError (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult;

@end

@interface NSURLResponse (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult;

@end

@interface NSURLRequest (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult;

@end

@implementation NSError (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult 

{

    NSString *str = [NSString stringWithFormat:@"<NSError domain %@, code %d", [self domain], [self code]];

    NSURL *failingURL;

    if ((failingURL = [[self userInfo] objectForKey:@"NSErrorFailingURLKey"]))

        str = [str stringByAppendingFormat:@", failing URL \"%@\"", [failingURL _drt_descriptionSuitableForTestResult]];

    str = [str stringByAppendingFormat:@">"];

    return str;

}

@end

@implementation NSURL (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult 

{

    if (![self isFileURL])

        return [self absoluteString];

    WebDataSource *dataSource = [mainFrame dataSource];

    if (!dataSource)

        dataSource = [mainFrame provisionalDataSource];

    NSString *basePath = [[[[dataSource request] URL] path] stringByDeletingLastPathComponent];

    return [[self path] substringFromIndex:[basePath length] + 1];

}

@end

@implementation NSURLResponse (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult

{

    int statusCode = 0;

    if ([self isKindOfClass:[NSHTTPURLResponse class]])

        statusCode = [(NSHTTPURLResponse *)self statusCode];

    return [NSString stringWithFormat:@"<NSURLResponse %@, http status code %i>", [[self URL] _drt_descriptionSuitableForTestResult], statusCode];

}

@end

@implementation NSURLRequest (DRTExtras)

- (NSString *)_drt_descriptionSuitableForTestResult

{

    NSString *httpMethod = [self HTTPMethod];

    if (!httpMethod)

        httpMethod = @"(none)";

    return [NSString stringWithFormat:@"<NSURLRequest URL %@, main document URL %@, http method %@>", [[self URL] _drt_descriptionSuitableForTestResult], [[self mainDocumentURL] _drt_descriptionSuitableForTestResult], httpMethod];

}

@end

@implementation ResourceLoadDelegate

- webView: (WebView *)wv identifierForInitialRequest: (NSURLRequest *)request fromDataSource: (WebDataSource *)dataSource

{

    ASSERT([[dataSource webFrame] dataSource] || [[dataSource webFrame] provisionalDataSource]);

    if (!done && gLayoutTestController->dumpResourceLoadCallbacks())

        return [[request URL] _drt_descriptionSuitableForTestResult];

    return @"<unknown>";

}

-(NSURLRequest *)webView: (WebView *)wv resource:identifier willSendRequest: (NSURLRequest *)request redirectResponse:(NSURLResponse *)redirectResponse fromDataSource:(WebDataSource *)dataSource

{

    if (!done && gLayoutTestController->dumpResourceLoadCallbacks()) {

        NSString *string = [NSString stringWithFormat:@"%@ - willSendRequest %@ redirectResponse %@", identifier, [request _drt_descriptionSuitableForTestResult],

            [redirectResponse _drt_descriptionSuitableForTestResult]];

        printf("%s\n", [string UTF8String]);

    }

    if (!done && !gLayoutTestController->deferMainResourceDataLoad()) {

        [dataSource _setDeferMainResourceDataLoad:false];

    }

    if (!done && gLayoutTestController->willSendRequestReturnsNull())

        return nil;

    if (!done && gLayoutTestController->willSendRequestReturnsNullOnRedirect() && redirectResponse) {

        printf("Returning null for this redirect\n");

        return nil;

    }

    NSURL *url = [request URL];

    NSString *host = [url host];

    if (host

        && (NSOrderedSame == [[url scheme] caseInsensitiveCompare:@"http"] || NSOrderedSame == [[url scheme] caseInsensitiveCompare:@"https"])

        && NSOrderedSame != [host compare:@"127.0.0.1"]

        && NSOrderedSame != [host compare:@"255.255.255.255"] // used in some tests that expect to get back an error

        && NSOrderedSame != [host caseInsensitiveCompare:@"localhost"]) {

        printf("Blocked access to external URL %s\n", [[url absoluteString] cStringUsingEncoding:NSUTF8StringEncoding]);

        return nil;

    }

    if (disallowedURLs && CFSetContainsValue(disallowedURLs, url))

        return nil;

    NSMutableURLRequest *newRequest = [request mutableCopy];

    const set<string>& clearHeaders = gLayoutTestController->willSendRequestClearHeaders();

    for (set<string>::const_iterator header = clearHeaders.begin(); header != clearHeaders.end(); ++header) {

        NSString *nsHeader = [[NSString alloc] initWithUTF8String:header->c_str()];

        [newRequest setValue:nil forHTTPHeaderField:nsHeader];

        [nsHeader release];

    }

    return [newRequest autorelease];

}

- (void)webView:(WebView *)wv resource:(id)identifier didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)dataSource

{

    if (!gLayoutTestController->handlesAuthenticationChallenges()) {

        NSString *string = [NSString stringWithFormat:@"%@ - didReceiveAuthenticationChallenge - Simulating cancelled authentication sheet", identifier];

        printf("%s\n", [string UTF8String]);

        [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge];

        return;

    }

    const char* user = gLayoutTestController->authenticationUsername().c_str();

    NSString *nsUser = [NSString stringWithFormat:@"%s", user ? user : ""];

    const char* password = gLayoutTestController->authenticationPassword().c_str();

    NSString *nsPassword = [NSString stringWithFormat:@"%s", password ? password : ""];

    NSString *string = [NSString stringWithFormat:@"%@ - didReceiveAuthenticationChallenge - Responding with %@:%@", identifier, nsUser, nsPassword];

    printf("%s\n", [string UTF8String]);

    [[challenge sender] useCredential:[NSURLCredential credentialWithUser:nsUser password:nsPassword persistence:NSURLCredentialPersistenceForSession]

                              forAuthenticationChallenge:challenge];

}

- (void)webView:(WebView *)wv resource:(id)identifier didCancelAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge fromDataSource:(WebDataSource *)dataSource

{

}

-(void)webView: (WebView *)wv resource:identifier didReceiveResponse: (NSURLResponse *)response fromDataSource:(WebDataSource *)dataSource

{

    if (!done && gLayoutTestController->dumpResourceLoadCallbacks()) {

        NSString *string = [NSString stringWithFormat:@"%@ - didReceiveResponse %@", identifier, [response _drt_descriptionSuitableForTestResult]];

        printf("%s\n", [string UTF8String]);

    }

    if (!done && gLayoutTestController->dumpResourceResponseMIMETypes())

        printf("%s has MIME type %s\n", [[[[response URL] relativePath] lastPathComponent] UTF8String], [[response MIMEType] UTF8String]);

}

-(void)webView: (WebView *)wv resource:identifier didReceiveContentLength: (NSInteger)length fromDataSource:(WebDataSource *)dataSource

{

}

-(void)webView: (WebView *)wv resource:identifier didFinishLoadingFromDataSource:(WebDataSource *)dataSource

{

    if (!done && gLayoutTestController->dumpResourceLoadCallbacks()) {

        NSString *string = [NSString stringWithFormat:@"%@ - didFinishLoading", identifier];

        printf("%s\n", [string UTF8String]);

    }

}

-(void)webView: (WebView *)wv resource:identifier didFailLoadingWithError:(NSError *)error fromDataSource:(WebDataSource *)dataSource

{

    if (!done && gLayoutTestController->dumpResourceLoadCallbacks()) {

        NSString *string = [NSString stringWithFormat:@"%@ - didFailLoadingWithError: %@", identifier, [error _drt_descriptionSuitableForTestResult]];

        printf("%s\n", [string UTF8String]);

    }

}

- (void)webView: (WebView *)wv plugInFailedWithError:(NSError *)error dataSource:(WebDataSource *)dataSource

{

    // The call to -display here simulates the "Plug-in not found" sheet that Safari shows.

    // It is used for platform/mac/plugins/update-widget-from-style-recalc.html

    [wv display];

}

-(NSCachedURLResponse *) webView: (WebView *)wv resource:(id)identifier willCacheResponse:(NSCachedURLResponse *)response fromDataSource:(WebDataSource *)dataSource

{

    if (!done && gLayoutTestController->dumpWillCacheResponse()) {

        NSString *string = [NSString stringWithFormat:@"%@ - willCacheResponse: called", identifier];

        printf("%s\n", [string UTF8String]);

    }

    return response;

}

@end