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/*
* Copyright (C) 2006 Apple Computer, 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 "WebArchiver.h"
#import "WebArchive.h"
#import "WebDOMOperationsPrivate.h"
#import "WebDataSource.h"
#import "WebDocument.h"
#import "WebFrame.h"
#import "WebFrameBridge.h"
#import "WebFrameInternal.h"
#import "WebResource.h"
#import <JavaScriptCore/Assertions.h>
#import <WebCore/Frame.h>
#import <WebCore/SelectionController.h>
#import <WebKit/DOM.h>
using namespace WebCore;
@implementation WebArchiver
+ (NSArray *)_subframeArchivesForFrame:(WebFrame *)frame
{
NSEnumerator *enumerator = [[frame childFrames] objectEnumerator];
NSMutableArray *subframeArchives = [NSMutableArray array];
WebFrame *childFrame;
while ((childFrame = [enumerator nextObject])) {
WebArchive *childFrameArchive = [self archiveFrame:childFrame];
if (childFrameArchive)
[subframeArchives addObject:childFrameArchive];
}
return subframeArchives;
}
+ (WebArchive *)archiveFrame:(WebFrame *)frame;
{
return [[[WebArchive alloc] initWithMainResource:[[frame _dataSource] mainResource]
subresources:[[frame _dataSource] subresources]
subframeArchives:[self _subframeArchivesForFrame:frame]] autorelease];
}
+ (WebArchive *)archiveMainResourceForFrame:(WebFrame *)frame;
{
return [[[WebArchive alloc] initWithMainResource:[[frame _dataSource] mainResource]
subresources:nil
subframeArchives:nil] autorelease];
}
+ (WebArchive *)_archiveCurrentStateForFrame:(WebFrame *)frame
{
if ([frame DOMDocument])
return [self archiveNode:[frame DOMDocument]];
return [self archiveFrame:frame];
}
+ (WebArchive *)_archiveWithMarkupString:(NSString *)markupString fromFrame:(WebFrame *)frame nodes:(NSArray *)nodes
{
NSURLResponse *response = [[frame _dataSource] response];
NSURL *responseURL = [response URL];
// it's possible to have a response without a URL here
// <rdar://problem/5454935>
if (!responseURL)
responseURL = [NSURL URLWithString:@""];
WebResource *mainResource = [[WebResource alloc] initWithData:[markupString dataUsingEncoding:NSUTF8StringEncoding]
URL:responseURL
MIMEType:[response MIMEType]
textEncodingName:@"UTF-8"
frameName:[frame name]];
NSMutableArray *subframeArchives = [[NSMutableArray alloc] init];
NSMutableArray *subresources = [[NSMutableArray alloc] init];
NSMutableSet *uniqueSubresources = [[NSMutableSet alloc] init];
NSEnumerator *enumerator = [nodes objectEnumerator];
DOMNode *node;
while ((node = [enumerator nextObject]) != nil) {
WebFrame *childFrame;
if (([node isKindOfClass:[DOMHTMLFrameElement class]] ||
[node isKindOfClass:[DOMHTMLIFrameElement class]] ||
[node isKindOfClass:[DOMHTMLObjectElement class]]) &&
((childFrame = [(DOMHTMLFrameElement *)node contentFrame]) != nil)) {
[subframeArchives addObject:[self _archiveCurrentStateForFrame:childFrame]];
} else {
NSEnumerator *enumerator = [[node _subresourceURLs] objectEnumerator];
NSURL *URL;
while ((URL = [enumerator nextObject]) != nil) {
if ([uniqueSubresources containsObject:URL])
continue;
[uniqueSubresources addObject:URL];
WebResource *subresource = [[frame _dataSource] subresourceForURL:URL];
if (subresource)
[subresources addObject:subresource];
else
// FIXME: should do something better than spew to console here
LOG_ERROR("Failed to archive subresource for %@", URL);
}
}
}
WebArchive *archive = [[[WebArchive alloc] initWithMainResource:mainResource subresources:subresources subframeArchives:subframeArchives] autorelease];
[mainResource release];
[uniqueSubresources release];
[subresources release];
[subframeArchives release];
return archive;
}
+ (WebArchive *)archiveRange:(DOMRange *)range
{
WebFrameBridge *bridge = [range _bridge];
WebFrame *frame = [bridge webFrame];
NSArray *nodes;
NSString *markupString = [bridge markupStringFromRange:range nodes:&nodes];
return [self _archiveWithMarkupString:markupString fromFrame:frame nodes:nodes];
}
+ (WebArchive *)archiveNode:(DOMNode *)node
{
WebFrame *frame = [[node ownerDocument] webFrame];
WebFrameBridge *bridge = [frame _bridge];
NSArray *nodes;
NSString *markupString = [bridge markupStringFromNode:node nodes:&nodes];
return [self _archiveWithMarkupString:markupString fromFrame:frame nodes:nodes];
}
+ (WebArchive *)archiveSelectionInFrame:(WebFrame *)frame
{
Frame* coreFrame = core(frame);
if (!coreFrame)
return nil;
WebFrameBridge *bridge = [frame _bridge];
NSArray *nodes;
NSString *markupString = [bridge markupStringFromRange:kit(coreFrame->selectionController()->toRange().get()) nodes:&nodes];
WebArchive *archive = [self _archiveWithMarkupString:markupString fromFrame:frame nodes:nodes];
if (coreFrame->isFrameSet()) {
// Wrap the frameset document in an iframe so it can be pasted into
// another document (which will have a body or frameset of its own).
NSString *iframeMarkup = [[NSString alloc] initWithFormat:@"<iframe frameborder=\"no\" marginwidth=\"0\" marginheight=\"0\" width=\"98%%\" height=\"98%%\" src=\"%@\"></iframe>", [[[frame _dataSource] response] URL]];
WebResource *iframeResource = [[WebResource alloc] initWithData:[iframeMarkup dataUsingEncoding:NSUTF8StringEncoding]
URL:blankURL()
MIMEType:@"text/html"
textEncodingName:@"UTF-8"
frameName:nil];
NSArray *subframeArchives = [NSArray arrayWithObject:archive];
archive = [[[WebArchive alloc] initWithMainResource:iframeResource subresources:nil subframeArchives:subframeArchives] autorelease];
[iframeResource release];
[iframeMarkup release];
}
return archive;
}
@end
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