| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| 'use strict'; |
| |
| // TODO(eroman): put these methods into a namespace. |
| |
| let createLogEntryTablePrinter; |
| let proxySettingsToString; |
| |
| // Start of anonymous namespace. |
| (function() { |
| 'use strict'; |
| |
| function canCollapseBeginWithEnd(beginEntry) { |
| return beginEntry && beginEntry.isBegin() && beginEntry.end && |
| beginEntry.end.index === beginEntry.index + 1 && |
| (!beginEntry.orig.params || !beginEntry.end.orig.params); |
| } |
| |
| /** |
| * Creates a TablePrinter for use by the above two functions. baseTime is |
| * the time relative to which other times are displayed. |
| */ |
| createLogEntryTablePrinter = function(logEntries, baseTime, logCreationTime, |
| forSearch=false) { |
| const entries = LogGroupEntry.createArrayFrom(logEntries); |
| const tablePrinter = new TablePrinter(); |
| const parameterOutputter = new ParameterOutputter(tablePrinter, forSearch); |
| |
| if (entries.length === 0) { |
| return tablePrinter; |
| } |
| |
| const startTime = timeutil.convertTimeTicksToTime( |
| (logEntries[0].source.start_time !== undefined) ? |
| logEntries[0].source.start_time : |
| entries[0].orig.time); |
| |
| for (let i = 0; i < entries.length; ++i) { |
| const entry = entries[i]; |
| |
| // Avoid printing the END for a BEGIN that was immediately before, unless |
| // both have extra parameters. |
| if (!entry.isEnd() || !canCollapseBeginWithEnd(entry.begin)) { |
| const entryTime = timeutil.convertTimeTicksToTime(entry.orig.time); |
| addRowWithTime(tablePrinter, entryTime - baseTime, |
| startTime - baseTime); |
| |
| for (let j = entry.getDepth(); j > 0; --j) { |
| tablePrinter.addCell(' '); |
| } |
| |
| let eventText = getTextForEvent(entry); |
| // Get the elapsed time, and append it to the event text. |
| if (entry.isBegin()) { |
| let dt = '?'; |
| // Definite time. |
| if (entry.end) { |
| dt = entry.end.orig.time - entry.orig.time; |
| } else if (logCreationTime !== undefined) { |
| dt = (logCreationTime - entryTime) + '+'; |
| } |
| eventText += ' [dt=' + dt + ']'; |
| } |
| |
| const mainCell = tablePrinter.addCell(eventText); |
| mainCell.allowOverflow = true; |
| } |
| |
| // Output the extra parameters. |
| if (typeof entry.orig.params === 'object') { |
| // Those 5 skipped cells are: two for "t=", and three for "st=". |
| tablePrinter.setNewRowCellIndent(5 + entry.getDepth()); |
| writeParameters(entry.orig, parameterOutputter); |
| |
| tablePrinter.setNewRowCellIndent(0); |
| } |
| } |
| |
| // If viewing a saved log file, add row with just the time the log was |
| // created, if the event never completed. |
| const lastEntry = entries[entries.length - 1]; |
| // If the last entry has a non-zero depth or is a begin event, the source is |
| // still active. |
| const isSourceActive = lastEntry.getDepth() !== 0 || lastEntry.isBegin(); |
| if (logCreationTime !== undefined && isSourceActive) { |
| addRowWithTime( |
| tablePrinter, logCreationTime - baseTime, startTime - baseTime); |
| } |
| |
| return tablePrinter; |
| }; |
| |
| /** |
| * Adds a new row to the given TablePrinter, and adds five cells containing |
| * information about the time an event occured. |
| * Format is '[t=<time of the event in ms>] [st=<ms since the source |
| * started>]'. |
| * @param {TablePrinter} tablePrinter The table printer to add the cells to. |
| * @param {number} eventTime The time the event occured, in milliseconds, |
| * relative to some base time. |
| * @param {number} startTime The time the first event for the source occured, |
| * relative to the same base time as eventTime. |
| */ |
| function addRowWithTime(tablePrinter, eventTime, startTime) { |
| tablePrinter.addRow(); |
| tablePrinter.addCell('t='); |
| const tCell = tablePrinter.addCell(eventTime); |
| tCell.alignRight = true; |
| tablePrinter.addCell(' [st='); |
| const stCell = tablePrinter.addCell(eventTime - startTime); |
| stCell.alignRight = true; |
| tablePrinter.addCell('] '); |
| } |
| |
| /** Append an ASCII representation of the bytes for search filtering |
| * purposes. ASCII codes 32 though 126 display the corresponding |
| * characters, nulls are represented by spaces, and any other |
| * character is represented by a period. |
| */ |
| function writeBytesAsSearchableString(bytes, out) { |
| let result = ' '; |
| bytes.forEach(curByte => { |
| if (curByte >= 0x20 && curByte <= 0x7E) { |
| result += String.fromCharCode(curByte); |
| } else if (curByte === 0x00) { |
| result += ' '; |
| } else { |
| result += '.'; |
| } |
| }); |
| out.writeLine(result); |
| } |
| |
| /** |
| * |bytes| must be an array-like object of bytes. Writes multiple lines to |
| * |out| with the hexadecimal characters from |bytes| on the left, in |
| * groups of two, and their corresponding ASCII characters on the |
| * right. |
| * |
| * 16 bytes will be placed on each line of the output string, split into two |
| * columns of 8. |
| */ |
| function writeHexString(bytes, out) { |
| function byteToPaddedHex(b) { |
| let str = b.toString(16).toUpperCase(); |
| if (str.length < 2) { |
| str = '0' + str; |
| } |
| return str; |
| } |
| |
| const kBytesPerLine = 16; |
| // Returns pretty printed kBytesPerLine bytes starting from |
| // bytes[startIndex], in hexdump style format. |
| function formatLine(startIndex) { |
| let result = ' '; |
| |
| // Append a hex formatting of |bytes|. |
| for (let i = 0; i < kBytesPerLine; ++i) { |
| result += ' '; |
| |
| // Add a separator every 8 bytes. |
| if ((i % 8) === 0) { |
| result += ' '; |
| } |
| |
| // Output hex for the byte, or space if no bytes remain. |
| const byteIndex = startIndex + i; |
| if (byteIndex < bytes.length) { |
| result += byteToPaddedHex(bytes[byteIndex]); |
| } else { |
| result += ' '; |
| } |
| } |
| |
| result += ' '; |
| |
| // Append an ASCII formatting of the bytes, where ASCII codes 32 |
| // though 126 display the corresponding characters, nulls are |
| // represented by spaces, and any other character is represented |
| // by a period. |
| for (let i = 0; i < kBytesPerLine; ++i) { |
| const byteIndex = startIndex + i; |
| if (byteIndex >= bytes.length) { |
| break; |
| } |
| |
| const curByte = bytes[byteIndex]; |
| |
| if (curByte >= 0x20 && curByte <= 0x7E) { |
| result += String.fromCharCode(curByte); |
| } else if (curByte === 0x00) { |
| result += ' '; |
| } else { |
| result += '.'; |
| } |
| } |
| |
| return result; |
| } |
| |
| // Output lines for each group of kBytesPerLine bytes. |
| for (let i = 0; i < bytes.length; i += kBytesPerLine) { |
| out.writeLine(formatLine(i)); |
| } |
| } |
| |
| const kArrow = ' --> '; |
| const kArrowIndentation = ' '; |
| |
| /** |
| * Wrapper around a TablePrinter to simplify outputting lines of text for |
| * event |
| * parameters. |
| */ |
| class ParameterOutputter { |
| /** |
| * @constructor |
| */ |
| constructor(tablePrinter, forSearch=false) { |
| this.tablePrinter_ = tablePrinter; |
| this.forSearch_ = forSearch; |
| } |
| |
| /** |
| * Returns |true| if this ParameterOutputter is being used |
| * to write output that will be used for search filtering |
| * rather than display to the end-user. |
| */ |
| isForSearch() { |
| return this.forSearch_; |
| } |
| |
| /** |
| * Outputs a single line. |
| */ |
| writeLine(line) { |
| this.tablePrinter_.addRow(); |
| const cell = this.tablePrinter_.addCell(line); |
| cell.allowOverflow = true; |
| return cell; |
| } |
| |
| /** |
| * Outputs a key=value line which looks like: |
| * |
| * --> key = value |
| */ |
| writeArrowKeyValue(key, value, link) { |
| const cell = this.writeLine(kArrow + key + ' = ' + value); |
| cell.link = link; |
| } |
| |
| /** |
| * Outputs a key= line which looks like: |
| * |
| * --> key = |
| */ |
| writeArrowKey(key) { |
| this.writeLine(kArrow + key + ' ='); |
| } |
| |
| /** |
| * Outputs multiple lines, each indented by numSpaces. |
| * For instance if numSpaces=8 it might look like this: |
| * |
| * line 1 |
| * line 2 |
| * line 3 |
| */ |
| writeSpaceIndentedLines(numSpaces, lines) { |
| const prefix = makeRepeatedString(' ', numSpaces); |
| for (let i = 0; i < lines.length; ++i) { |
| this.writeLine(prefix + lines[i]); |
| } |
| } |
| |
| /** |
| * Outputs multiple lines such that the first line has |
| * an arrow pointing at it, and subsequent lines |
| * align with the first one. For example: |
| * |
| * --> line 1 |
| * line 2 |
| * line 3 |
| */ |
| writeArrowIndentedLines(lines) { |
| if (lines.length === 0) { |
| return; |
| } |
| |
| this.writeLine(kArrow + lines[0]); |
| |
| for (let i = 1; i < lines.length; ++i) { |
| this.writeLine(kArrowIndentation + lines[i]); |
| } |
| } |
| } |
| |
| /** |
| * Formats the parameters for |entry| and writes them to |out|. |
| * Certain event types have custom pretty printers. Everything else will |
| * default to a JSON-like format. |
| */ |
| function writeParameters(entry, out) { |
| // If headers are in an object, convert them to an array for better |
| // display. |
| entry = reformatHeaders(entry); |
| |
| // Use any parameter writer available for this event type. |
| const paramsWriter = getParameterWriterForEventType(entry.type); |
| const consumedParams = {}; |
| if (paramsWriter) { |
| paramsWriter(entry, out, consumedParams); |
| } |
| |
| // Write any un-consumed parameters. |
| for (const k in entry.params) { |
| if (consumedParams[k]) { |
| continue; |
| } |
| defaultWriteParameter(k, entry.params[k], out); |
| } |
| } |
| |
| /** |
| * Finds a writer to format the parameters for events of type |eventType|. |
| * |
| * @return {function} The returned function "writer" can be invoked |
| * as |writer(entry, writer, consumedParams)|. It will |
| * output the parameters of |entry| to |out|, and fill |
| * |consumedParams| with the keys of the parameters |
| * consumed. If no writer is available for |eventType| then |
| * returns null. |
| */ |
| function getParameterWriterForEventType(eventType) { |
| switch (eventType) { |
| case EventType.HTTP_TRANSACTION_SEND_REQUEST_HEADERS: |
| case EventType.HTTP_TRANSACTION_SEND_TUNNEL_HEADERS: |
| case EventType.TYPE_HTTP_CACHE_CALLER_REQUEST_HEADERS: |
| return writeParamsForRequestHeaders; |
| |
| case EventType.PROXY_CONFIG_CHANGED: |
| return writeParamsForProxyConfigChanged; |
| |
| case EventType.CERT_VERIFIER_JOB: |
| case EventType.SSL_CERTIFICATES_RECEIVED: |
| return writeParamsForCertificates; |
| case EventType.CERT_CT_COMPLIANCE_CHECKED: |
| case EventType.EV_CERT_CT_COMPLIANCE_CHECKED: |
| return writeParamsForCheckedCertificates; |
| } |
| return null; |
| } |
| |
| /** |
| * Parses |hexStr| to an array of bytes, or returns null if the input is not a |
| * valid hex string. |
| */ |
| function tryParseHexToBytes(hexStr) { |
| if ((hexStr.length % 2) !== 0) { |
| return null; |
| } |
| |
| const result = []; |
| for (let i = 0; i < hexStr.length; i += 2) { |
| const value = parseInt(hexStr.substr(i, 2), 16); |
| if (isNaN(value)) { |
| return null; |
| } |
| result.push(value); |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Parses a base64 encoded string to a Uint8Array of bytes. |
| */ |
| function tryParseBase64ToBytes(b64Str) { |
| let decodedStr; |
| |
| try { |
| decodedStr = atob(b64Str); |
| } catch (e) { |
| return null; |
| } |
| |
| return Uint8Array.from(decodedStr, c => c.charCodeAt(0)); |
| } |
| |
| /** |
| * Default parameter writer that outputs a visualization of field named |key| |
| * with value |value| to |out|. |
| */ |
| function defaultWriteParameter(key, value, out) { |
| if (key === 'headers' && value instanceof Array) { |
| out.writeArrowIndentedLines(value); |
| return; |
| } |
| |
| if (key === 'bytes' && typeof value === 'string') { |
| const bytes = tryParseBase64ToBytes(value); |
| if (bytes) { |
| if (out.isForSearch()) { |
| writeBytesAsSearchableString(bytes, out); |
| } else { |
| out.writeArrowKey(key); |
| writeHexString(bytes, out); |
| } |
| return; |
| } |
| } |
| |
| // Handle source_dependency entries - add link and map source type to |
| // string. |
| if (key === 'source_dependency' && typeof value === 'object') { |
| const link = '#events&s=' + value.id; |
| const valueStr = value.id + ' (' + EventSourceTypeNames[value.type] + ')'; |
| out.writeArrowKeyValue(key, valueStr, link); |
| return; |
| } |
| |
| if (key === 'net_error' && typeof value === 'number') { |
| const valueStr = value + ' (' + netErrorToString(value) + ')'; |
| out.writeArrowKeyValue(key, valueStr); |
| return; |
| } |
| |
| if (key === 'quic_error' && typeof value === 'number') { |
| const valueStr = value + ' (' + quicErrorToString(value) + ')'; |
| out.writeArrowKeyValue(key, valueStr); |
| return; |
| } |
| |
| if (key === 'quic_crypto_handshake_message' && typeof value === 'string') { |
| const lines = value.split('\n'); |
| out.writeArrowIndentedLines(lines); |
| return; |
| } |
| |
| if (key === 'quic_rst_stream_error' && typeof value === 'number') { |
| const valueStr = value + ' (' + quicRstStreamErrorToString(value) + ')'; |
| out.writeArrowKeyValue(key, valueStr); |
| return; |
| } |
| |
| if (key === 'load_flags' && typeof value === 'number') { |
| const valueStr = value + ' (' + getLoadFlagSymbolicString(value) + ')'; |
| out.writeArrowKeyValue(key, valueStr); |
| return; |
| } |
| |
| if (key === 'load_state' && typeof value === 'number') { |
| const valueStr = value + ' (' + getKeyWithValue(LoadState, value) + ')'; |
| out.writeArrowKeyValue(key, valueStr); |
| return; |
| } |
| |
| // Otherwise just default to JSON formatting of the value. |
| out.writeArrowKeyValue(key, JSON.stringify(value)); |
| } |
| |
| /** |
| * Returns the set of LoadFlags that make up the integer |loadFlag|. |
| * For example: getLoadFlagSymbolicString( |
| */ |
| function getLoadFlagSymbolicString(loadFlag) { |
| return getSymbolicString( |
| loadFlag, LoadFlag, getKeyWithValue(LoadFlag, loadFlag)); |
| } |
| |
| /** |
| * Returns the set of CertStatusFlags that make up the integer |
| * |certStatusFlag| |
| */ |
| function getCertStatusFlagSymbolicString(certStatusFlag) { |
| return getSymbolicString(certStatusFlag, CertStatusFlag, ''); |
| } |
| |
| /** |
| * Returns the set of CertVerifierFlags that make up the integer |
| * |certVerifierFlags| |
| */ |
| function getCertVerifierFlagsSymbolicString(certVerifierFlags) { |
| return getSymbolicString(certVerifierFlags, CertVerifierFlags, ''); |
| } |
| |
| /** |
| * Returns a string representing the flags composing the given bitmask. |
| */ |
| function getSymbolicString(bitmask, valueToName, zeroName) { |
| const matchingFlagNames = []; |
| |
| for (const k in valueToName) { |
| if (bitmask & valueToName[k]) { |
| matchingFlagNames.push(k); |
| } |
| } |
| |
| // If no flags were matched, returns a special value. |
| if (matchingFlagNames.length === 0) { |
| return zeroName; |
| } |
| |
| return matchingFlagNames.join(' | '); |
| } |
| |
| /** |
| * TODO(eroman): get rid of this, as it is only used by 1 callsite. |
| * |
| * Indent |lines| by |start|. |
| * |
| * For example, if |start| = ' -> ' and |lines| = ['line1', 'line2', 'line3'] |
| * the output will be: |
| * |
| * " -> line1\n" + |
| * " line2\n" + |
| * " line3" |
| */ |
| function indentLines(start, lines) { |
| return start + lines.join('\n' + makeRepeatedString(' ', start.length)); |
| } |
| |
| /** |
| * If entry.param.headers exists and is an object other than an array, |
| * converts |
| * it into an array and returns a new entry. Otherwise, just returns the |
| * original entry. |
| */ |
| function reformatHeaders(entry) { |
| // If there are no headers, or it is not an object other than an array, |
| // return |entry| without modification. |
| if (!entry.params || entry.params.headers === undefined || |
| typeof entry.params.headers !== 'object' || |
| entry.params.headers instanceof Array) { |
| return entry; |
| } |
| |
| // Duplicate the top level object, and |entry.params|, so the original |
| // object |
| // will not be modified. |
| entry = shallowCloneObject(entry); |
| entry.params = shallowCloneObject(entry.params); |
| |
| // Convert headers to an array. |
| const headers = []; |
| for (const key in entry.params.headers) { |
| headers.push(key + ': ' + entry.params.headers[key]); |
| } |
| entry.params.headers = headers; |
| |
| return entry; |
| } |
| |
| /** |
| * Outputs the request header parameters of |entry| to |out|. |
| */ |
| function writeParamsForRequestHeaders(entry, out, consumedParams) { |
| const params = entry.params; |
| |
| if (!(typeof params.line === 'string') || |
| !(params.headers instanceof Array)) { |
| // Unrecognized params. |
| return; |
| } |
| |
| // Strip the trailing CRLF that params.line contains. |
| const lineWithoutCRLF = params.line.replace(/\r\n$/g, ''); |
| out.writeArrowIndentedLines([lineWithoutCRLF].concat(params.headers)); |
| |
| consumedParams.line = true; |
| consumedParams.headers = true; |
| } |
| |
| function writeIndentedMultiLineParam(lines, out, consumedParams, paramName) { |
| out.writeArrowKey(paramName); |
| out.writeSpaceIndentedLines(8, lines); |
| consumedParams[paramName] = true; |
| } |
| |
| function writeCertificateParam( |
| certsContainer, out, consumedParams, paramName) { |
| if (certsContainer.certificates instanceof Array) { |
| const certs = |
| certsContainer.certificates.reduce(function(previous, current) { |
| return previous.concat(current.split('\n')); |
| }, []); |
| writeIndentedMultiLineParam(certs, out, consumedParams, paramName); |
| } |
| } |
| |
| /** |
| * Outputs the certificate parameters of |entry| to |out|. |
| */ |
| function writeParamsForCertificates(entry, out, consumedParams) { |
| writeCertificateParam(entry.params, out, consumedParams, 'certificates'); |
| |
| if (typeof(entry.params.verified_cert) === 'object') { |
| writeCertificateParam( |
| entry.params.verified_cert, out, consumedParams, 'verified_cert'); |
| } |
| |
| if (typeof(entry.params.ocsp_response) === 'string') { |
| writeIndentedMultiLineParam( |
| entry.params.ocsp_response.split('\n'), out, consumedParams, |
| 'ocsp_response'); |
| } |
| |
| if (typeof(entry.params.sct_list) === 'string') { |
| writeIndentedMultiLineParam( |
| entry.params.sct_list.split('\n'), out, consumedParams, 'sct_list'); |
| } |
| |
| if (typeof(entry.params.cert_status) === 'number') { |
| const valueStr = entry.params.cert_status + ' (' + |
| getCertStatusFlagSymbolicString(entry.params.cert_status) + ')'; |
| out.writeArrowKeyValue('cert_status', valueStr); |
| consumedParams.cert_status = true; |
| } |
| |
| if (typeof(entry.params.verifier_flags) === 'number') { |
| const valueStr = entry.params.verifier_flags + ' (' + |
| getCertVerifierFlagsSymbolicString(entry.params.verifier_flags) + ')'; |
| out.writeArrowKeyValue('verifier_flags', valueStr); |
| consumedParams.verifier_flags = true; |
| } |
| } |
| |
| function writeParamsForCheckedCertificates(entry, out, consumedParams) { |
| if (typeof(entry.params.certificate) === 'object') { |
| writeCertificateParam( |
| entry.params.certificate, out, consumedParams, 'certificate'); |
| } |
| } |
| |
| function writeParamsForProxyConfigChanged(entry, out, consumedParams) { |
| const params = entry.params; |
| |
| if (typeof params.new_config !== 'object') { |
| // Unrecognized params. |
| return; |
| } |
| |
| if (typeof params.old_config === 'object') { |
| const oldConfigString = proxySettingsToString(params.old_config); |
| // The previous configuration may not be present in the case of |
| // the initial proxy settings fetch. |
| out.writeArrowKey('old_config'); |
| |
| out.writeSpaceIndentedLines(8, oldConfigString.split('\n')); |
| |
| consumedParams.old_config = true; |
| } |
| |
| const newConfigString = proxySettingsToString(params.new_config); |
| out.writeArrowKey('new_config'); |
| out.writeSpaceIndentedLines(8, newConfigString.split('\n')); |
| |
| consumedParams.new_config = true; |
| } |
| |
| function getTextForEvent(entry) { |
| let text = ''; |
| |
| if (entry.isBegin() && canCollapseBeginWithEnd(entry)) { |
| // Don't prefix with '+' if we are going to collapse the END event. |
| text = ' '; |
| } else if (entry.isBegin()) { |
| text = '+' + text; |
| } else if (entry.isEnd()) { |
| text = '-' + text; |
| } else { |
| text = ' '; |
| } |
| |
| text += EventTypeNames[entry.orig.type]; |
| return text; |
| } |
| |
| proxySettingsToString = function(config) { |
| if (!config) { |
| return ''; |
| } |
| |
| // TODO(eroman): if |config| has unexpected properties, print it as JSON |
| // rather than hide them. |
| |
| function getProxyListString(proxies) { |
| // Older versions of Chrome would set these values as strings, whereas |
| // newer |
| // logs use arrays. |
| // TODO(eroman): This behavior changed in M27. Support for older logs can |
| // safely be removed circa M29. |
| if (Array.isArray(proxies)) { |
| const listString = proxies.join(', '); |
| if (proxies.length > 1) { |
| return '[' + listString + ']'; |
| } |
| return listString; |
| } |
| return proxies; |
| } |
| |
| // The proxy settings specify up to three major fallback choices |
| // (auto-detect, custom pac url, or manual settings). |
| // We enumerate these to a list so we can later number them. |
| const modes = []; |
| |
| // Output any automatic settings. |
| if (config.auto_detect) { |
| modes.push(['Auto-detect']); |
| } |
| if (config.pac_url) { |
| modes.push(['PAC script: ' + config.pac_url]); |
| } |
| |
| // Output any manual settings. |
| if (config.single_proxy || config.proxy_per_scheme) { |
| const lines = []; |
| |
| if (config.single_proxy) { |
| lines.push('Proxy server: ' + getProxyListString(config.single_proxy)); |
| } else if (config.proxy_per_scheme) { |
| for (const urlScheme in config.proxy_per_scheme) { |
| if (urlScheme !== 'fallback') { |
| lines.push( |
| 'Proxy server for ' + urlScheme.toUpperCase() + ': ' + |
| getProxyListString(config.proxy_per_scheme[urlScheme])); |
| } |
| } |
| if (config.proxy_per_scheme.fallback) { |
| lines.push( |
| 'Proxy server for everything else: ' + |
| getProxyListString(config.proxy_per_scheme.fallback)); |
| } |
| } |
| |
| // Output any proxy bypass rules. |
| if (config.bypass_list) { |
| if (config.reverse_bypass) { |
| lines.push('Reversed bypass list: '); |
| } else { |
| lines.push('Bypass list: '); |
| } |
| |
| for (let i = 0; i < config.bypass_list.length; ++i) { |
| lines.push(' ' + config.bypass_list[i]); |
| } |
| } |
| |
| modes.push(lines); |
| } |
| |
| const result = []; |
| if (modes.length < 1) { |
| // If we didn't find any proxy settings modes, we are using DIRECT. |
| result.push('Use DIRECT connections.'); |
| } else if (modes.length === 1) { |
| // If there was just one mode, don't bother numbering it. |
| result.push(modes[0].join('\n')); |
| } else { |
| // Otherwise concatenate all of the modes into a numbered list |
| // (which correspond with the fallback order). |
| for (let i = 0; i < modes.length; ++i) { |
| result.push(indentLines('(' + (i + 1) + ') ', modes[i])); |
| } |
| } |
| |
| if (config.source !== undefined && config.source !== 'UNKNOWN') { |
| result.push('Source: ' + config.source); |
| } |
| |
| return result.join('\n'); |
| }; |
| |
| // End of anonymous namespace. |
| })(); |
| |
