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 "DocumentLoadTiming.h" 28 29#include "Document.h" 30#include "DocumentLoader.h" 31#include "Frame.h" 32#include "Page.h" 33#include "SecurityOrigin.h" 34#include <wtf/CurrentTime.h> 35#include <wtf/RefPtr.h> 36 37namespace WebCore { 38 39DocumentLoadTiming::DocumentLoadTiming() 40 : m_referenceMonotonicTime(0.0) 41 , m_referenceWallTime(0.0) 42 , m_navigationStart(0.0) 43 , m_unloadEventStart(0.0) 44 , m_unloadEventEnd(0.0) 45 , m_redirectStart(0.0) 46 , m_redirectEnd(0.0) 47 , m_redirectCount(0) 48 , m_fetchStart(0.0) 49 , m_responseEnd(0.0) 50 , m_loadEventStart(0.0) 51 , m_loadEventEnd(0.0) 52 , m_hasCrossOriginRedirect(false) 53 , m_hasSameOriginAsPreviousDocument(false) 54{ 55} 56 57double DocumentLoadTiming::monotonicTimeToZeroBasedDocumentTime(double monotonicTime) const 58{ 59 if (!monotonicTime) 60 return 0.0; 61 return monotonicTime - m_referenceMonotonicTime; 62} 63 64double DocumentLoadTiming::monotonicTimeToPseudoWallTime(double monotonicTime) const 65{ 66 if (!monotonicTime) 67 return 0.0; 68 return m_referenceWallTime + monotonicTime - m_referenceMonotonicTime; 69} 70 71void DocumentLoadTiming::markNavigationStart() 72{ 73 ASSERT(!m_navigationStart && !m_referenceMonotonicTime && !m_referenceWallTime); 74 75 m_navigationStart = m_referenceMonotonicTime = monotonicallyIncreasingTime(); 76 m_referenceWallTime = currentTime(); 77} 78 79void DocumentLoadTiming::addRedirect(const URL& redirectingUrl, const URL& redirectedUrl) 80{ 81 m_redirectCount++; 82 if (!m_redirectStart) 83 m_redirectStart = m_fetchStart; 84 m_redirectEnd = m_fetchStart = monotonicallyIncreasingTime(); 85 // Check if the redirected url is allowed to access the redirecting url's timing information. 86 RefPtr<SecurityOrigin> redirectedSecurityOrigin = SecurityOrigin::create(redirectedUrl); 87 m_hasCrossOriginRedirect = !redirectedSecurityOrigin->canRequest(redirectingUrl); 88} 89 90} // namespace WebCore 91