remoting/webapp/server_log_entry.js

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 /**
   6  * @fileoverview
   7  * A class of server log entries.
   8  */
   9
  10 'use strict';
  11
  12 /** @suppress {duplicate} */
  13 var remoting = remoting || {};
  14
  15 /**
  16  * @private
  17  * @constructor
  18  */
  19 remoting.ServerLogEntry = function() {
  20   /** @type Object.<string, string> */ this.dict = {};
  21 };
  22
  23 /** @private */
  24 remoting.ServerLogEntry.KEY_EVENT_NAME_ = 'event-name';
  25 /** @private */
  26 remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_STATE_ =
  27     'session-state';
  28
  29 /** @private */
  30 remoting.ServerLogEntry.KEY_SESSION_ID_ = 'session-id';
  31
  32 /** @private */
  33 remoting.ServerLogEntry.KEY_ROLE_ = 'role';
  34 /** @private */
  35 remoting.ServerLogEntry.VALUE_ROLE_CLIENT_ = 'client';
  36
  37 /** @private */
  38 remoting.ServerLogEntry.KEY_SESSION_STATE_ = 'session-state';
  39
  40 /**
  41  * @private
  42  * @param {remoting.ClientSession.State} state
  43  * @return {string}
  44  */
  45 remoting.ServerLogEntry.getValueForSessionState = function(state) {
  46   switch(state) {
  47     case remoting.ClientSession.State.UNKNOWN:
  48       return 'unknown';
  49     case remoting.ClientSession.State.CREATED:
  50       return 'created';
  51     case remoting.ClientSession.State.CONNECTING:
  52       return 'connecting';
  53     case remoting.ClientSession.State.INITIALIZING:
  54       return 'initializing';
  55     case remoting.ClientSession.State.CONNECTED:
  56       return 'connected';
  57     case remoting.ClientSession.State.CLOSED:
  58       return 'closed';
  59     case remoting.ClientSession.State.FAILED:
  60       return 'connection-failed';
  61     case remoting.ClientSession.State.CONNECTION_DROPPED:
  62       return 'connection-dropped';
  63     case remoting.ClientSession.State.CONNECTION_CANCELED:
  64       return 'connection-canceled';
  65     default:
  66       return 'undefined-' + state;
  67   }
  68 };
  69
  70 /** @private */
  71 remoting.ServerLogEntry.KEY_CONNECTION_ERROR_ = 'connection-error';
  72
  73 /**
  74  * @private
  75  * @param {remoting.Error} connectionError
  76  * @return {string}
  77  */
  78 remoting.ServerLogEntry.getValueForError =
  79     function(connectionError) {
  80   switch(connectionError) {
  81     case remoting.Error.NONE:
  82       return 'none';
  83     case remoting.Error.INVALID_ACCESS_CODE:
  84       return 'invalid-access-code';
  85     case remoting.Error.MISSING_PLUGIN:
  86       return 'missing_plugin';
  87     case remoting.Error.AUTHENTICATION_FAILED:
  88       return 'authentication-failed';
  89     case remoting.Error.HOST_IS_OFFLINE:
  90       return 'host-is-offline';
  91     case remoting.Error.INCOMPATIBLE_PROTOCOL:
  92       return 'incompatible-protocol';
  93     case remoting.Error.BAD_PLUGIN_VERSION:
  94       return 'bad-plugin-version';
  95     case remoting.Error.NETWORK_FAILURE:
  96       return 'network-failure';
  97     case remoting.Error.HOST_OVERLOAD:
  98       return 'host-overload';
  99     case remoting.Error.P2P_FAILURE:
 100       return 'p2p-failure';
 101     case remoting.Error.UNEXPECTED:
 102       return 'unexpected';
 103     default:
 104       return 'unknown-' + connectionError;
 105   }
 106 };
 107
 108 /** @private */
 109 remoting.ServerLogEntry.KEY_SESSION_DURATION_ = 'session-duration';
 110
 111 /** @private */
 112 remoting.ServerLogEntry.VALUE_EVENT_NAME_CONNECTION_STATISTICS_ =
 113     "connection-statistics";
 114 /** @private */
 115 remoting.ServerLogEntry.KEY_VIDEO_BANDWIDTH_ = "video-bandwidth";
 116 /** @private */
 117 remoting.ServerLogEntry.KEY_CAPTURE_LATENCY_ = "capture-latency";
 118 /** @private */
 119 remoting.ServerLogEntry.KEY_ENCODE_LATENCY_ = "encode-latency";
 120 /** @private */
 121 remoting.ServerLogEntry.KEY_DECODE_LATENCY_ = "decode-latency";
 122 /** @private */
 123 remoting.ServerLogEntry.KEY_RENDER_LATENCY_ = "render-latency";
 124 /** @private */
 125 remoting.ServerLogEntry.KEY_ROUNDTRIP_LATENCY_ = "roundtrip-latency";
 126
 127 /** @private */
 128 remoting.ServerLogEntry.KEY_OS_NAME_ = 'os-name';
 129 /** @private */
 130 remoting.ServerLogEntry.VALUE_OS_NAME_WINDOWS_ = 'Windows';
 131 /** @private */
 132 remoting.ServerLogEntry.VALUE_OS_NAME_LINUX_ = 'Linux';
 133 /** @private */
 134 remoting.ServerLogEntry.VALUE_OS_NAME_MAC_ = 'Mac';
 135 /** @private */
 136 remoting.ServerLogEntry.VALUE_OS_NAME_CHROMEOS_ = 'ChromeOS';
 137
 138 /** @private */
 139 remoting.ServerLogEntry.KEY_OS_VERSION_ = 'os-version';
 140
 141 /** @private */
 142 remoting.ServerLogEntry.KEY_CPU_ = 'cpu';
 143
 144 /** @private */
 145 remoting.ServerLogEntry.KEY_BROWSER_VERSION_ = 'browser-version';
 146
 147 /** @private */
 148 remoting.ServerLogEntry.KEY_WEBAPP_VERSION_ = 'webapp-version';
 149
 150 /** @private */
 151 remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_ID_OLD_ = 'session-id-old';
 152
 153 /** @private */
 154 remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_ID_NEW_ = 'session-id-new';
 155
 156 /** @private */
 157 remoting.ServerLogEntry.KEY_MODE_ = 'mode';
 158 /** @private */
 159 remoting.ServerLogEntry.VALUE_MODE_IT2ME_ = 'it2me';
 160 /** @private */
 161 remoting.ServerLogEntry.VALUE_MODE_ME2ME_ = 'me2me';
 162 /** @private */
 163 remoting.ServerLogEntry.VALUE_MODE_UNKNOWN_ = 'unknown';
 164
 165 /**
 166  * Sets one field in this log entry.
 167  *
 168  * @private
 169  * @param {string} key
 170  * @param {string} value
 171  */
 172 remoting.ServerLogEntry.prototype.set = function(key, value) {
 173   this.dict[key] = value;
 174 };
 175
 176 /**
 177  * Converts this object into an XML stanza.
 178  *
 179  * @return {string}
 180  */
 181 remoting.ServerLogEntry.prototype.toStanza = function() {
 182   var stanza = '<gr:entry ';
 183   for (var key in this.dict) {
 184     stanza += escape(key) + '="' + escape(this.dict[key]) + '" ';
 185   }
 186   stanza += '/>';
 187   return stanza;
 188 };
 189
 190 /**
 191  * Prints this object on the debug log.
 192  *
 193  * @param {number} indentLevel the indentation level
 194  */
 195 remoting.ServerLogEntry.prototype.toDebugLog = function(indentLevel) {
 196   /** @type Array.<string> */ var fields = [];
 197   for (var key in this.dict) {
 198     fields.push(key + ': ' + this.dict[key]);
 199   }
 200   console.log(Array(indentLevel+1).join("  ") + fields.join(', '));
 201 };
 202
 203 /**
 204  * Makes a log entry for a change of client session state.
 205  *
 206  * @param {remoting.ClientSession.State} state
 207  * @param {remoting.Error} connectionError
 208  * @param {remoting.ClientSession.Mode} mode
 209  * @return {remoting.ServerLogEntry}
 210  */
 211 remoting.ServerLogEntry.makeClientSessionStateChange = function(state,
 212     connectionError, mode) {
 213   var entry = new remoting.ServerLogEntry();
 214   entry.set(remoting.ServerLogEntry.KEY_ROLE_,
 215             remoting.ServerLogEntry.VALUE_ROLE_CLIENT_);
 216   entry.set(remoting.ServerLogEntry.KEY_EVENT_NAME_,
 217             remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_STATE_);
 218   entry.set(remoting.ServerLogEntry.KEY_SESSION_STATE_,
 219             remoting.ServerLogEntry.getValueForSessionState(state));
 220   if (connectionError != remoting.Error.NONE) {
 221     entry.set(remoting.ServerLogEntry.KEY_CONNECTION_ERROR_,
 222               remoting.ServerLogEntry.getValueForError(connectionError));
 223   }
 224   entry.addModeField(mode);
 225   return entry;
 226 };
 227
 228 /**
 229  * Adds a session duration to a log entry.
 230  *
 231  * @param {number} sessionDuration
 232  */
 233 remoting.ServerLogEntry.prototype.addSessionDurationField = function(
 234     sessionDuration) {
 235   this.set(remoting.ServerLogEntry.KEY_SESSION_DURATION_,
 236       sessionDuration.toString());
 237 };
 238
 239 /**
 240  * Makes a log entry for a set of connection statistics.
 241  * Returns null if all the statistics were zero.
 242  *
 243  * @param {remoting.StatsAccumulator} statsAccumulator
 244  * @param {remoting.ClientSession.Mode} mode
 245  * @return {?remoting.ServerLogEntry}
 246  */
 247 remoting.ServerLogEntry.makeStats = function(statsAccumulator, mode) {
 248   var entry = new remoting.ServerLogEntry();
 249   entry.set(remoting.ServerLogEntry.KEY_ROLE_,
 250             remoting.ServerLogEntry.VALUE_ROLE_CLIENT_);
 251   entry.set(remoting.ServerLogEntry.KEY_EVENT_NAME_,
 252             remoting.ServerLogEntry.VALUE_EVENT_NAME_CONNECTION_STATISTICS_);
 253   entry.addModeField(mode);
 254   var nonZero = false;
 255   nonZero |= entry.addStatsField(
 256       remoting.ServerLogEntry.KEY_VIDEO_BANDWIDTH_,
 257       remoting.ClientSession.STATS_KEY_VIDEO_BANDWIDTH, statsAccumulator);
 258   nonZero |= entry.addStatsField(
 259       remoting.ServerLogEntry.KEY_CAPTURE_LATENCY_,
 260       remoting.ClientSession.STATS_KEY_CAPTURE_LATENCY, statsAccumulator);
 261   nonZero |= entry.addStatsField(
 262       remoting.ServerLogEntry.KEY_ENCODE_LATENCY_,
 263       remoting.ClientSession.STATS_KEY_ENCODE_LATENCY, statsAccumulator);
 264   nonZero |= entry.addStatsField(
 265       remoting.ServerLogEntry.KEY_DECODE_LATENCY_,
 266       remoting.ClientSession.STATS_KEY_DECODE_LATENCY, statsAccumulator);
 267   nonZero |= entry.addStatsField(
 268       remoting.ServerLogEntry.KEY_RENDER_LATENCY_,
 269       remoting.ClientSession.STATS_KEY_RENDER_LATENCY, statsAccumulator);
 270   nonZero |= entry.addStatsField(
 271       remoting.ServerLogEntry.KEY_ROUNDTRIP_LATENCY_,
 272       remoting.ClientSession.STATS_KEY_ROUNDTRIP_LATENCY, statsAccumulator);
 273   if (nonZero) {
 274     return entry;
 275   }
 276   return null;
 277 };
 278
 279 /**
 280  * Adds one connection statistic to a log entry.
 281  *
 282  * @private
 283  * @param {string} entryKey
 284  * @param {string} statsKey
 285  * @param {remoting.StatsAccumulator} statsAccumulator
 286  * @return {boolean} whether the statistic is non-zero
 287  */
 288 remoting.ServerLogEntry.prototype.addStatsField = function(
 289     entryKey, statsKey, statsAccumulator) {
 290   var val = statsAccumulator.calcMean(statsKey);
 291   this.set(entryKey, val.toFixed(2));
 292   return (val != 0);
 293 };
 294
 295 /**
 296  * Makes a log entry for a "this session ID is old" event.
 297  *
 298  * @param {string} sessionId
 299  * @param {remoting.ClientSession.Mode} mode
 300  * @return {remoting.ServerLogEntry}
 301  */
 302 remoting.ServerLogEntry.makeSessionIdOld = function(sessionId, mode) {
 303   var entry = new remoting.ServerLogEntry();
 304   entry.set(remoting.ServerLogEntry.KEY_ROLE_,
 305             remoting.ServerLogEntry.VALUE_ROLE_CLIENT_);
 306   entry.set(remoting.ServerLogEntry.KEY_EVENT_NAME_,
 307             remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_ID_OLD_);
 308   entry.addSessionIdField(sessionId);
 309   entry.addModeField(mode);
 310   return entry;
 311 };
 312
 313 /**
 314  * Makes a log entry for a "this session ID is new" event.
 315  *
 316  * @param {string} sessionId
 317  * @param {remoting.ClientSession.Mode} mode
 318  * @return {remoting.ServerLogEntry}
 319  */
 320 remoting.ServerLogEntry.makeSessionIdNew = function(sessionId, mode) {
 321   var entry = new remoting.ServerLogEntry();
 322   entry.set(remoting.ServerLogEntry.KEY_ROLE_,
 323             remoting.ServerLogEntry.VALUE_ROLE_CLIENT_);
 324   entry.set(remoting.ServerLogEntry.KEY_EVENT_NAME_,
 325             remoting.ServerLogEntry.VALUE_EVENT_NAME_SESSION_ID_NEW_);
 326   entry.addSessionIdField(sessionId);
 327   entry.addModeField(mode);
 328   return entry;
 329 };
 330
 331 /**
 332  * Adds a session ID field to this log entry.
 333  *
 334  * @param {string} sessionId
 335  */
 336 remoting.ServerLogEntry.prototype.addSessionIdField = function(sessionId) {
 337   this.set(remoting.ServerLogEntry.KEY_SESSION_ID_, sessionId);
 338 }
 339
 340 /**
 341  * Adds fields describing the host to this log entry.
 342  */
 343 remoting.ServerLogEntry.prototype.addHostFields = function() {
 344   var host = remoting.ServerLogEntry.getHostData();
 345   if (host) {
 346     if (host.os_name.length > 0) {
 347       this.set(remoting.ServerLogEntry.KEY_OS_NAME_, host.os_name);
 348     }
 349     if (host.os_version.length > 0) {
 350       this.set(remoting.ServerLogEntry.KEY_OS_VERSION_, host.os_version);
 351     }
 352     if (host.cpu.length > 0) {
 353       this.set(remoting.ServerLogEntry.KEY_CPU_, host.cpu);
 354     }
 355   }
 356 };
 357
 358 /**
 359  * Extracts host data from the userAgent string.
 360  *
 361  * @private
 362  * @return {{os_name:string, os_version:string, cpu:string} | null}
 363  */
 364 remoting.ServerLogEntry.getHostData = function() {
 365   return remoting.ServerLogEntry.extractHostDataFrom(navigator.userAgent);
 366 };
 367
 368 /**
 369  * Extracts host data from the given userAgent string.
 370  *
 371  * @private
 372  * @param {string} s
 373  * @return {{os_name:string, os_version:string, cpu:string} | null}
 374  */
 375 remoting.ServerLogEntry.extractHostDataFrom = function(s) {
 376   // Sample userAgent strings:
 377   // 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 ' +
 378   //   '(KHTML, like Gecko) Chrome/15.0.874.106 Safari/535.2'
 379   // 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/535.8 ' +
 380   //   '(KHTML, like Gecko) Chrome/17.0.933.0 Safari/535.8'
 381   // 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/535.1 ' +
 382   //   '(KHTML, like Gecko) Chrome/14.0.835.202 Safari/535.1'
 383   // 'Mozilla/5.0 (X11; CrOS i686 14.811.154) AppleWebKit/535.1 ' +
 384   //   '(KHTML, like Gecko) Chrome/14.0.835.204 Safari/535.1'
 385   var match = new RegExp('Windows NT ([0-9\\.]*)').exec(s);
 386   if (match && (match.length >= 2)) {
 387     return {
 388         'os_name': remoting.ServerLogEntry.VALUE_OS_NAME_WINDOWS_,
 389         'os_version': match[1],
 390         'cpu': ''
 391     };
 392   }
 393   match = new RegExp('Linux ([a-zA-Z0-9_]*)').exec(s);
 394   if (match && (match.length >= 2)) {
 395     return {
 396         'os_name': remoting.ServerLogEntry.VALUE_OS_NAME_LINUX_,
 397         'os_version' : '',
 398         'cpu': match[1]
 399     };
 400   }
 401   match = new RegExp('([a-zA-Z]*) Mac OS X ([0-9_]*)').exec(s);
 402   if (match && (match.length >= 3)) {
 403     return {
 404         'os_name': remoting.ServerLogEntry.VALUE_OS_NAME_MAC_,
 405         'os_version': match[2].replace(/_/g, '.'),
 406         'cpu': match[1]
 407     };
 408   }
 409   match = new RegExp('CrOS ([a-zA-Z0-9]*) ([0-9.]*)').exec(s);
 410   if (match && (match.length >= 3)) {
 411     return {
 412         'os_name': remoting.ServerLogEntry.VALUE_OS_NAME_CHROMEOS_,
 413         'os_version': match[2],
 414         'cpu': match[1]
 415     };
 416   }
 417   return null;
 418 };
 419
 420 /**
 421  * Adds a field specifying the browser version to this log entry.
 422  */
 423 remoting.ServerLogEntry.prototype.addChromeVersionField = function() {
 424   var version = remoting.getChromeVersion();
 425   if (version != null) {
 426     this.set(remoting.ServerLogEntry.KEY_BROWSER_VERSION_, version);
 427   }
 428 };
 429
 430 /**
 431  * Adds a field specifying the webapp version to this log entry.
 432  */
 433 remoting.ServerLogEntry.prototype.addWebappVersionField = function() {
 434   var manifest = chrome.runtime.getManifest();
 435   if (manifest && manifest.version) {
 436     this.set(remoting.ServerLogEntry.KEY_WEBAPP_VERSION_, manifest.version);
 437   }
 438 };
 439
 440 /**
 441  * Adds a field specifying the mode to this log entry.
 442  *
 443  * @param {remoting.ClientSession.Mode} mode
 444  */
 445 remoting.ServerLogEntry.prototype.addModeField = function(mode) {
 446   this.set(remoting.ServerLogEntry.KEY_MODE_,
 447       remoting.ServerLogEntry.getModeField(mode));
 448 };
 449
 450 /**
 451  * Gets the value of the mode field to be put in a log entry.
 452  *
 453  * @private
 454  * @param {remoting.ClientSession.Mode} mode
 455  * @return {string}
 456  */
 457 remoting.ServerLogEntry.getModeField = function(mode) {
 458   switch(mode) {
 459     case remoting.ClientSession.Mode.IT2ME:
 460       return remoting.ServerLogEntry.VALUE_MODE_IT2ME_;
 461     case remoting.ClientSession.Mode.ME2ME:
 462       return remoting.ServerLogEntry.VALUE_MODE_ME2ME_;
 463     default:
 464       return remoting.ServerLogEntry.VALUE_MODE_UNKNOWN_;
 465   }
 466 };