1 /*
2 * Copyright (C) 2011 Google, 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 GOOGLE 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 GOOGLE 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 #include "config.h"
27 #include "core/loader/DocumentLoadTiming.h"
28
29 #include "platform/weborigin/SecurityOrigin.h"
30 #include "wtf/RefPtr.h"
31
32 namespace WebCore {
33
DocumentLoadTiming()34 DocumentLoadTiming::DocumentLoadTiming()
35 : m_referenceMonotonicTime(0.0)
36 , m_referenceWallTime(0.0)
37 , m_navigationStart(0.0)
38 , m_unloadEventStart(0.0)
39 , m_unloadEventEnd(0.0)
40 , m_redirectStart(0.0)
41 , m_redirectEnd(0.0)
42 , m_redirectCount(0)
43 , m_fetchStart(0.0)
44 , m_responseEnd(0.0)
45 , m_loadEventStart(0.0)
46 , m_loadEventEnd(0.0)
47 , m_hasCrossOriginRedirect(false)
48 , m_hasSameOriginAsPreviousDocument(false)
49 {
50 }
51
monotonicTimeToZeroBasedDocumentTime(double monotonicTime) const52 double DocumentLoadTiming::monotonicTimeToZeroBasedDocumentTime(double monotonicTime) const
53 {
54 if (!monotonicTime)
55 return 0.0;
56 return monotonicTime - m_referenceMonotonicTime;
57 }
58
monotonicTimeToPseudoWallTime(double monotonicTime) const59 double DocumentLoadTiming::monotonicTimeToPseudoWallTime(double monotonicTime) const
60 {
61 if (!monotonicTime)
62 return 0.0;
63 return m_referenceWallTime + monotonicTime - m_referenceMonotonicTime;
64 }
65
markNavigationStart()66 void DocumentLoadTiming::markNavigationStart()
67 {
68 ASSERT(!m_navigationStart && !m_referenceMonotonicTime && !m_referenceWallTime);
69
70 m_navigationStart = m_referenceMonotonicTime = monotonicallyIncreasingTime();
71 m_referenceWallTime = currentTime();
72 }
73
setNavigationStart(double navigationStart)74 void DocumentLoadTiming::setNavigationStart(double navigationStart)
75 {
76 ASSERT(m_referenceMonotonicTime && m_referenceWallTime);
77 m_navigationStart = navigationStart;
78 }
79
addRedirect(const KURL & redirectingUrl,const KURL & redirectedUrl)80 void DocumentLoadTiming::addRedirect(const KURL& redirectingUrl, const KURL& redirectedUrl)
81 {
82 m_redirectCount++;
83 if (!m_redirectStart)
84 m_redirectStart = m_fetchStart;
85 m_redirectEnd = m_fetchStart = monotonicallyIncreasingTime();
86 // Check if the redirected url is allowed to access the redirecting url's timing information.
87 RefPtr<SecurityOrigin> redirectedSecurityOrigin = SecurityOrigin::create(redirectedUrl);
88 m_hasCrossOriginRedirect = !redirectedSecurityOrigin->canRequest(redirectingUrl);
89 }
90
91 } // namespace WebCore
92