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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 /** | 4 /** |
| 5 * @unrestricted | 5 * @unrestricted |
| 6 */ | 6 */ |
| 7 WebInspector.ServerTiming = class { | 7 SDK.ServerTiming = class { |
| 8 /** | 8 /** |
| 9 * @param {string} metric | 9 * @param {string} metric |
| 10 * @param {number} value | 10 * @param {number} value |
| 11 * @param {string} description | 11 * @param {string} description |
| 12 */ | 12 */ |
| 13 constructor(metric, value, description) { | 13 constructor(metric, value, description) { |
| 14 this.metric = metric; | 14 this.metric = metric; |
| 15 this.value = value; | 15 this.value = value; |
| 16 this.description = description; | 16 this.description = description; |
| 17 } | 17 } |
| 18 | 18 |
| 19 /** | 19 /** |
| 20 * @param {!Array<!WebInspector.NetworkRequest.NameValue>} headers | 20 * @param {!Array<!SDK.NetworkRequest.NameValue>} headers |
| 21 * @return {?Array<!WebInspector.ServerTiming>} | 21 * @return {?Array<!SDK.ServerTiming>} |
| 22 */ | 22 */ |
| 23 static parseHeaders(headers) { | 23 static parseHeaders(headers) { |
| 24 var rawServerTimingHeaders = headers.filter(item => item.name.toLowerCase()
=== 'server-timing'); | 24 var rawServerTimingHeaders = headers.filter(item => item.name.toLowerCase()
=== 'server-timing'); |
| 25 if (!rawServerTimingHeaders.length) | 25 if (!rawServerTimingHeaders.length) |
| 26 return null; | 26 return null; |
| 27 | 27 |
| 28 /** | 28 /** |
| 29 * @param {?string} valueString | 29 * @param {?string} valueString |
| 30 * @return {?Array<!WebInspector.ServerTiming>} | 30 * @return {?Array<!SDK.ServerTiming>} |
| 31 */ | 31 */ |
| 32 function createFromHeaderValue(valueString) { | 32 function createFromHeaderValue(valueString) { |
| 33 // https://www.w3.org/TR/server-timing/ | 33 // https://www.w3.org/TR/server-timing/ |
| 34 var serverTimingMetricRegExp = | 34 var serverTimingMetricRegExp = |
| 35 /[ \t]*([\!\#\$\%\&\'\*\+\-\.\^\_\`\|\~0-9A-Za-z]+)[ \t]*(?:=[ \t]*(\d
+(?:\.\d+)?))?[ \t]*(?:;[ \t]*(?:"([^"]+)"|([\!\#\$\%\&\'\*\+\-\.\^\_\`\|\~0-9A-
Za-z]+)))?[ \t]*(?:,(.*))?/; | 35 /[ \t]*([\!\#\$\%\&\'\*\+\-\.\^\_\`\|\~0-9A-Za-z]+)[ \t]*(?:=[ \t]*(\d
+(?:\.\d+)?))?[ \t]*(?:;[ \t]*(?:"([^"]+)"|([\!\#\$\%\&\'\*\+\-\.\^\_\`\|\~0-9A-
Za-z]+)))?[ \t]*(?:,(.*))?/; |
| 36 var metricMatch; | 36 var metricMatch; |
| 37 var result = []; | 37 var result = []; |
| 38 while (valueString && (metricMatch = serverTimingMetricRegExp.exec(valueSt
ring))) { | 38 while (valueString && (metricMatch = serverTimingMetricRegExp.exec(valueSt
ring))) { |
| 39 var metric = metricMatch[1]; | 39 var metric = metricMatch[1]; |
| 40 var value = metricMatch[2]; | 40 var value = metricMatch[2]; |
| 41 var description = metricMatch[3] || metricMatch[4]; | 41 var description = metricMatch[3] || metricMatch[4]; |
| 42 if (value !== null) | 42 if (value !== null) |
| 43 value = Math.abs(parseFloat(metricMatch[2])); | 43 value = Math.abs(parseFloat(metricMatch[2])); |
| 44 valueString = metricMatch[5]; // comma delimited headers | 44 valueString = metricMatch[5]; // comma delimited headers |
| 45 result.push(new WebInspector.ServerTiming(metric, value, description)); | 45 result.push(new SDK.ServerTiming(metric, value, description)); |
| 46 } | 46 } |
| 47 return result; | 47 return result; |
| 48 } | 48 } |
| 49 | 49 |
| 50 var serverTimings = rawServerTimingHeaders.reduce((memo, header) => { | 50 var serverTimings = rawServerTimingHeaders.reduce((memo, header) => { |
| 51 var timing = createFromHeaderValue(header.value); | 51 var timing = createFromHeaderValue(header.value); |
| 52 Array.prototype.push.apply(memo, timing); | 52 Array.prototype.push.apply(memo, timing); |
| 53 return memo; | 53 return memo; |
| 54 }, []); | 54 }, []); |
| 55 serverTimings.sort((a, b) => a.metric.toLowerCase().compareTo(b.metric.toLow
erCase())); | 55 serverTimings.sort((a, b) => a.metric.toLowerCase().compareTo(b.metric.toLow
erCase())); |
| 56 return serverTimings; | 56 return serverTimings; |
| 57 } | 57 } |
| 58 }; | 58 }; |
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