1/*
2 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "ResourceResponse.h"
28
29#if !USE(CFNETWORK)
30
31#import "HTTPParsers.h"
32#import "WebCoreURLResponse.h"
33#import "WebCoreSystemInterface.h"
34#import <Foundation/Foundation.h>
35#import <wtf/StdLibExtras.h>
36#import <limits>
37#include <wtf/text/CString.h>
38
39@interface NSURLResponse (FoundationSecretsWebCoreKnowsAbout)
40- (NSTimeInterval)_calculatedExpiration;
41@end
42
43#ifdef BUILDING_ON_TIGER
44typedef int NSInteger;
45#endif
46
47namespace WebCore {
48
49static NSString* const commonHeaderFields[] = {
50    @"Age", @"Cache-Control", @"Date", @"Etag", @"Expires", @"Last-Modified", @"Pragma"
51};
52static const int numCommonHeaderFields = sizeof(commonHeaderFields) / sizeof(AtomicString*);
53
54NSURLResponse *ResourceResponse::nsURLResponse() const
55{
56    if (!m_nsResponse && !m_isNull) {
57        // Work around a mistake in the NSURLResponse class.
58        // The init function takes an NSInteger, even though the accessor returns a long long.
59        // For values that won't fit in an NSInteger, pass -1 instead.
60        NSInteger expectedContentLength;
61        if (m_expectedContentLength < 0 || m_expectedContentLength > std::numeric_limits<NSInteger>::max())
62            expectedContentLength = -1;
63        else
64            expectedContentLength = static_cast<NSInteger>(m_expectedContentLength);
65        const_cast<ResourceResponse*>(this)->m_nsResponse.adoptNS([[NSURLResponse alloc] initWithURL:m_url MIMEType:m_mimeType expectedContentLength:expectedContentLength textEncodingName:m_textEncodingName]);
66    }
67    return m_nsResponse.get();
68}
69
70void ResourceResponse::platformLazyInit(InitLevel initLevel)
71{
72    if (m_initLevel >= initLevel)
73        return;
74
75    if (m_isNull) {
76        ASSERT(!m_nsResponse);
77        return;
78    }
79
80    if (m_initLevel < CommonFieldsOnly && initLevel >= CommonFieldsOnly) {
81        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
82
83        m_httpHeaderFields.clear();
84        m_url = [m_nsResponse.get() URL];
85        m_mimeType = [m_nsResponse.get() MIMEType];
86        m_expectedContentLength = [m_nsResponse.get() expectedContentLength];
87        m_textEncodingName = [m_nsResponse.get() textEncodingName];
88
89        // Workaround for <rdar://problem/8757088>, can be removed once that is fixed.
90        unsigned textEncodingNameLength = m_textEncodingName.length();
91        if (textEncodingNameLength >= 2 && m_textEncodingName[0U] == '"' && m_textEncodingName[textEncodingNameLength - 1] == '"')
92            m_textEncodingName = m_textEncodingName.substring(1, textEncodingNameLength - 2);
93
94        m_suggestedFilename = [m_nsResponse.get() suggestedFilename];
95
96        if ([m_nsResponse.get() isKindOfClass:[NSHTTPURLResponse class]]) {
97            NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)m_nsResponse.get();
98
99            m_httpStatusCode = [httpResponse statusCode];
100
101            NSDictionary *headers = [httpResponse allHeaderFields];
102
103            for (int i = 0; i < numCommonHeaderFields; i++) {
104                if (NSString* headerValue = [headers objectForKey:commonHeaderFields[i]])
105                    m_httpHeaderFields.set([commonHeaderFields[i] UTF8String], headerValue);
106            }
107        } else
108            m_httpStatusCode = 0;
109
110        [pool drain];
111    }
112
113    if (m_initLevel < AllFields && initLevel >= AllFields && [m_nsResponse.get() isKindOfClass:[NSHTTPURLResponse class]]) {
114        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
115
116        NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)m_nsResponse.get();
117
118        RetainPtr<NSString> httpStatusLine(AdoptNS, wkCopyNSURLResponseStatusLine(m_nsResponse.get()));
119        if (httpStatusLine)
120            m_httpStatusText = extractReasonPhraseFromHTTPStatusLine(httpStatusLine.get());
121        else
122            m_httpStatusText = "OK";
123
124        NSDictionary *headers = [httpResponse allHeaderFields];
125        NSEnumerator *e = [headers keyEnumerator];
126        while (NSString *name = [e nextObject])
127            m_httpHeaderFields.set(name, [headers objectForKey:name]);
128
129        [pool drain];
130    }
131
132    m_initLevel = initLevel;
133}
134
135
136bool ResourceResponse::platformCompare(const ResourceResponse& a, const ResourceResponse& b)
137{
138    return a.nsURLResponse() == b.nsURLResponse();
139}
140
141} // namespace WebCore
142
143#endif // !USE(CFNETWORK)
144