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 "weborigin/SecurityOrigin.h" 30 #include "wtf/CurrentTime.h" 31 #include "wtf/RefPtr.h" 32 33 namespace WebCore { 34 35 DocumentLoadTiming::DocumentLoadTiming() 36 : m_referenceMonotonicTime(0.0) 37 , m_referenceWallTime(0.0) 38 , m_navigationStart(0.0) 39 , m_unloadEventStart(0.0) 40 , m_unloadEventEnd(0.0) 41 , m_redirectStart(0.0) 42 , m_redirectEnd(0.0) 43 , m_redirectCount(0) 44 , m_fetchStart(0.0) 45 , m_responseEnd(0.0) 46 , m_loadEventStart(0.0) 47 , m_loadEventEnd(0.0) 48 , m_hasCrossOriginRedirect(false) 49 , m_hasSameOriginAsPreviousDocument(false) 50 { 51 } 52 53 double DocumentLoadTiming::monotonicTimeToZeroBasedDocumentTime(double monotonicTime) const 54 { 55 if (!monotonicTime) 56 return 0.0; 57 return monotonicTime - m_referenceMonotonicTime; 58 } 59 60 double DocumentLoadTiming::monotonicTimeToPseudoWallTime(double monotonicTime) const 61 { 62 if (!monotonicTime) 63 return 0.0; 64 return m_referenceWallTime + monotonicTime - m_referenceMonotonicTime; 65 } 66 67 void DocumentLoadTiming::markNavigationStart() 68 { 69 ASSERT(!m_navigationStart && !m_referenceMonotonicTime && !m_referenceWallTime); 70 71 m_navigationStart = m_referenceMonotonicTime = monotonicallyIncreasingTime(); 72 m_referenceWallTime = currentTime(); 73 } 74 75 void DocumentLoadTiming::setNavigationStart(double navigationStart) 76 { 77 ASSERT(m_referenceMonotonicTime && m_referenceWallTime); 78 m_navigationStart = navigationStart; 79 } 80 81 void DocumentLoadTiming::addRedirect(const KURL& redirectingUrl, const KURL& redirectedUrl) 82 { 83 m_redirectCount++; 84 if (!m_redirectStart) 85 m_redirectStart = m_fetchStart; 86 m_redirectEnd = m_fetchStart = monotonicallyIncreasingTime(); 87 // Check if the redirected url is allowed to access the redirecting url's timing information. 88 RefPtr<SecurityOrigin> redirectedSecurityOrigin = SecurityOrigin::create(redirectedUrl); 89 m_hasCrossOriginRedirect = !redirectedSecurityOrigin->canRequest(redirectingUrl); 90 } 91 92 } // namespace WebCore 93
