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1/*
2 * Copyright (C) 2006, 2008 Apple 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 "ResourceError.h"
28
29#import "BlockExceptions.h"
30#import "KURL.h"
31#import <CoreFoundation/CFError.h>
32#import <Foundation/Foundation.h>
33
34@interface NSError (WebExtras)
35- (NSString *)_web_localizedDescription;
36@end
37
38namespace WebCore {
39
40ResourceError::ResourceError(NSError *nsError)
41    : m_dataIsUpToDate(false)
42    , m_platformError(nsError)
43{
44    m_isNull = !nsError;
45}
46
47ResourceError::ResourceError(CFErrorRef cfError)
48    : m_dataIsUpToDate(false)
49    , m_platformError((NSError *)cfError)
50{
51    m_isNull = !cfError;
52}
53
54void ResourceError::platformLazyInit()
55{
56    if (m_dataIsUpToDate)
57        return;
58
59    m_domain = [m_platformError.get() domain];
60    m_errorCode = [m_platformError.get() code];
61
62    NSString* failingURLString = [[m_platformError.get() userInfo] valueForKey:@"NSErrorFailingURLStringKey"];
63    if (!failingURLString)
64        failingURLString = [[[m_platformError.get() userInfo] valueForKey:@"NSErrorFailingURLKey"] absoluteString];
65    m_failingURL = failingURLString;
66    // Workaround for <rdar://problem/6554067>
67    m_localizedDescription = m_failingURL;
68    BEGIN_BLOCK_OBJC_EXCEPTIONS;
69    m_localizedDescription = [m_platformError.get() _web_localizedDescription];
70    END_BLOCK_OBJC_EXCEPTIONS;
71
72    m_dataIsUpToDate = true;
73}
74
75bool ResourceError::platformCompare(const ResourceError& a, const ResourceError& b)
76{
77    return a.nsError() == b.nsError();
78}
79
80NSError *ResourceError::nsError() const
81{
82    if (m_isNull) {
83        ASSERT(!m_platformError);
84        return nil;
85    }
86
87    if (!m_platformError) {
88        RetainPtr<NSMutableDictionary> userInfo(AdoptNS, [[NSMutableDictionary alloc] init]);
89
90        if (!m_localizedDescription.isEmpty())
91            [userInfo.get() setValue:m_localizedDescription forKey:NSLocalizedDescriptionKey];
92
93        if (!m_failingURL.isEmpty()) {
94            NSURL *cocoaURL = KURL(ParsedURLString, m_failingURL);
95            [userInfo.get() setValue:m_failingURL forKey:@"NSErrorFailingURLStringKey"];
96            [userInfo.get() setValue:cocoaURL forKey:@"NSErrorFailingURLKey"];
97        }
98
99        m_platformError.adoptNS([[NSError alloc] initWithDomain:m_domain code:m_errorCode userInfo:userInfo.get()]);
100    }
101
102    return m_platformError.get();
103}
104
105ResourceError::operator NSError *() const
106{
107    return nsError();
108}
109
110CFErrorRef ResourceError::cfError() const
111{
112    return (CFErrorRef)nsError();
113}
114
115ResourceError::operator CFErrorRef() const
116{
117    return cfError();
118}
119
120} // namespace WebCore
121