The Tor Browser: dom/system/gonk/NetworkService.js@b8a032363ba2 (annotated)

dom/system/gonk/NetworkService.js@b8a032363ba2 (annotated)

dom/system/gonk/NetworkService.js

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/NetUtil.jsm");
 Cu.import("resource://gre/modules/FileUtils.jsm");
 const NETWORKSERVICE_CONTRACTID = "@mozilla.org/network/service;1";
 const NETWORKSERVICE_CID = Components.ID("{baec696c-c78d-42db-8b44-603f8fbfafb4}");
 XPCOMUtils.defineLazyServiceGetter(this, "gNetworkWorker",
                                    "@mozilla.org/network/worker;1",
                                    "nsINetworkWorker");
 // 1xx - Requested action is proceeding
 const NETD_COMMAND_PROCEEDING   = 100;
 // 2xx - Requested action has been successfully completed
 const NETD_COMMAND_OKAY         = 200;
 // 4xx - The command is accepted but the requested action didn't
 // take place.
 const NETD_COMMAND_FAIL         = 400;
 // 5xx - The command syntax or parameters error
 const NETD_COMMAND_ERROR        = 500;
 // 6xx - Unsolicited broadcasts
 const NETD_COMMAND_UNSOLICITED  = 600;
 const WIFI_CTRL_INTERFACE = "wl0.1";
 const MANUAL_PROXY_CONFIGURATION = 1;
 let DEBUG = false;
 // Read debug setting from pref.
 try {
   let debugPref = Services.prefs.getBoolPref("network.debugging.enabled");
   DEBUG = DEBUG || debugPref;
 } catch (e) {}
 function netdResponseType(code) {
   return Math.floor(code / 100) * 100;
 }
 function isError(code) {
   let type = netdResponseType(code);
   return (type !== NETD_COMMAND_PROCEEDING && type !== NETD_COMMAND_OKAY);
 }
 function debug(msg) {
   dump("-*- NetworkService: " + msg + "\n");
 }
 /**
  * This component watches for network interfaces changing state and then
  * adjusts routes etc. accordingly.
  */
 function NetworkService() {
   if(DEBUG) debug("Starting net_worker.");
   let self = this;
   if (gNetworkWorker) {
     let networkListener = {
       onEvent: function(event) {
         self.handleWorkerMessage(event);
       }
     };
     gNetworkWorker.start(networkListener);
   }
   // Callbacks to invoke when a reply arrives from the net_worker.
   this.controlCallbacks = Object.create(null);
   this.shutdown = false;
   Services.obs.addObserver(this, "xpcom-shutdown", false);
 }
 NetworkService.prototype = {
   classID:   NETWORKSERVICE_CID,
   classInfo: XPCOMUtils.generateCI({classID: NETWORKSERVICE_CID,
                                     contractID: NETWORKSERVICE_CONTRACTID,
                                     classDescription: "Network Service",
                                     interfaces: [Ci.nsINetworkService]}),
   QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkService]),
   // Helpers
   idgen: 0,
   controlMessage: function(params, callback) {
     if (this.shutdown) {
       return;
     }
     if (callback) {
       let id = this.idgen++;
       params.id = id;
       this.controlCallbacks[id] = callback;
     }
     if (gNetworkWorker) {
       gNetworkWorker.postMessage(params);
     }
   },
   handleWorkerMessage: function(response) {
     if(DEBUG) debug("NetworkManager received message from worker: " + JSON.stringify(response));
     let id = response.id;
     if (response.broadcast === true) {
       Services.obs.notifyObservers(null, response.topic, response.reason);
       return;
     }
     let callback = this.controlCallbacks[id];
     if (callback) {
       callback.call(this, response);
       delete this.controlCallbacks[id];
     }
   },
   // nsINetworkService
   getNetworkInterfaceStats: function(networkName, callback) {
     if(DEBUG) debug("getNetworkInterfaceStats for " + networkName);
     if (this.shutdown) {
       return;
     }
     let file = new FileUtils.File("/proc/net/dev");
     if (!file) {
       callback.networkStatsAvailable(false, -1, -1, new Date());
       return;
     }
     NetUtil.asyncFetch(file, function(inputStream, status) {
       let result = {
         success: true,  // netd always return success even interface doesn't exist.
         rxBytes: 0,
         txBytes: 0
       };
       result.date = new Date();
       if (Components.isSuccessCode(status)) {
         // Find record for corresponding interface.
         let statExpr = /(\S+): +(\d+) +\d+ +\d+ +\d+ +\d+ +\d+ +\d+ +\d+ +(\d+) +\d+ +\d+ +\d+ +\d+ +\d+ +\d+ +\d+/;
         let data = NetUtil.readInputStreamToString(inputStream,
                     inputStream.available()).split("\n");
         for (let i = 2; i < data.length; i++) {
           let parseResult = statExpr.exec(data[i]);
           if (parseResult && parseResult[1] === networkName) {
             result.rxBytes = parseInt(parseResult[2], 10);
             result.txBytes = parseInt(parseResult[3], 10);
             break;
           }
         }
       }
       callback.networkStatsAvailable(result.success, result.rxBytes,
                                      result.txBytes, result.date);
     });
   },
   setNetworkInterfaceAlarm: function(networkName, threshold, callback) {
     if (!networkName) {
       callback.networkUsageAlarmResult(-1);
       return;
     }
     let self = this;
     this._disableNetworkInterfaceAlarm(networkName, function(result) {
       if (threshold < 0) {
         if (!isError(result.resultCode)) {
           callback.networkUsageAlarmResult(null);
           return;
         }
         callback.networkUsageAlarmResult(result.reason);
         return
       }
       self._setNetworkInterfaceAlarm(networkName, threshold, callback);
     });
   },
   _setNetworkInterfaceAlarm: function(networkName, threshold, callback) {
     if(DEBUG) debug("setNetworkInterfaceAlarm for " + networkName + " at " + threshold + "bytes");
     let params = {
       cmd: "setNetworkInterfaceAlarm",
       ifname: networkName,
       threshold: threshold
     };
     params.report = true;
     params.isAsync = true;
     this.controlMessage(params, function(result) {
       if (!isError(result.resultCode)) {
         callback.networkUsageAlarmResult(null);
         return;
       }
       this._enableNetworkInterfaceAlarm(networkName, threshold, callback);
     });
   },
   _enableNetworkInterfaceAlarm: function(networkName, threshold, callback) {
     if(DEBUG) debug("enableNetworkInterfaceAlarm for " + networkName + " at " + threshold + "bytes");
     let params = {
       cmd: "enableNetworkInterfaceAlarm",
       ifname: networkName,
       threshold: threshold
     };
     params.report = true;
     params.isAsync = true;
     this.controlMessage(params, function(result) {
       if (!isError(result.resultCode)) {
         callback.networkUsageAlarmResult(null);
         return;
       }
       callback.networkUsageAlarmResult(result.reason);
     });
   },
   _disableNetworkInterfaceAlarm: function(networkName, callback) {
     if(DEBUG) debug("disableNetworkInterfaceAlarm for " + networkName);
     let params = {
       cmd: "disableNetworkInterfaceAlarm",
       ifname: networkName,
     };
     params.report = true;
     params.isAsync = true;
     this.controlMessage(params, function(result) {
       callback(result);
     });
   },
   setWifiOperationMode: function(interfaceName, mode, callback) {
     if(DEBUG) debug("setWifiOperationMode on " + interfaceName + " to " + mode);
     let params = {
       cmd: "setWifiOperationMode",
       ifname: interfaceName,
       mode: mode
     };
     params.report = true;
     params.isAsync = true;
     this.controlMessage(params, function(result) {
       if (isError(result.resultCode)) {
         callback.wifiOperationModeResult("netd command error");
       } else {
         callback.wifiOperationModeResult(null);
       }
     });
   },
   resetRoutingTable: function(network) {
     let ips = {};
     let prefixLengths = {};
     let length = network.getAddresses(ips, prefixLengths);
     for (let i = 0; i < length; i++) {
       let ip = ips.value[i];
       let prefixLength = prefixLengths.value[i];
       let options = {
         cmd: "removeNetworkRoute",
         ifname: network.name,
         ip: ip,
         prefixLength: prefixLength
       };
       this.controlMessage(options);
     }
   },
   setDNS: function(networkInterface) {
     if(DEBUG) debug("Going DNS to " + networkInterface.name);
     let dnses = networkInterface.getDnses();
     let options = {
       cmd: "setDNS",
       ifname: networkInterface.name,
       domain: "mozilla." + networkInterface.name + ".doman",
       dnses: dnses
     };
     this.controlMessage(options);
   },
   setDefaultRouteAndDNS: function(network, oldInterface) {
     if(DEBUG) debug("Going to change route and DNS to " + network.name);
     let gateways = network.getGateways();
     let dnses = network.getDnses();
     let options = {
       cmd: "setDefaultRouteAndDNS",
       ifname: network.name,
       oldIfname: (oldInterface && oldInterface !== network) ? oldInterface.name : null,
       gateways: gateways,
       domain: "mozilla." + network.name + ".doman",
       dnses: dnses
     };
     this.controlMessage(options);
     this.setNetworkProxy(network);
   },
   removeDefaultRoute: function(network) {
     if(DEBUG) debug("Remove default route for " + network.name);
     let gateways = network.getGateways();
     let options = {
       cmd: "removeDefaultRoute",
       ifname: network.name,
       gateways: gateways
     };
     this.controlMessage(options);
   },
   addHostRoute: function(network) {
     if(DEBUG) debug("Going to add host route on " + network.name);
     let gateways = network.getGateways();
     let dnses = network.getDnses();
     let options = {
       cmd: "addHostRoute",
       ifname: network.name,
       gateways: gateways,
       hostnames: dnses.concat(network.httpProxyHost)
     };
     this.controlMessage(options);
   },
   removeHostRoute: function(network) {
     if(DEBUG) debug("Going to remove host route on " + network.name);
     let gateways = network.getGateways();
     let dnses = network.getDnses();
     let options = {
       cmd: "removeHostRoute",
       ifname: network.name,
       gateways: gateways,
       hostnames: dnses.concat(network.httpProxyHost)
     };
     this.controlMessage(options);
   },
   removeHostRoutes: function(ifname) {
     if(DEBUG) debug("Going to remove all host routes on " + ifname);
     let options = {
       cmd: "removeHostRoutes",
       ifname: ifname,
     };
     this.controlMessage(options);
   },
   addHostRouteWithResolve: function(network, hosts) {
     if(DEBUG) debug("Going to add host route after dns resolution on " + network.name);
     let gateways = network.getGateways();
     let options = {
       cmd: "addHostRoute",
       ifname: network.name,
       gateways: gateways,
       hostnames: hosts
     };
     this.controlMessage(options);
   },
   removeHostRouteWithResolve: function(network, hosts) {
     if(DEBUG) debug("Going to remove host route after dns resolution on " + network.name);
     let gateways = network.getGateways();
     let options = {
       cmd: "removeHostRoute",
       ifname: network.name,
       gateways: gateways,
       hostnames: hosts
     };
     this.controlMessage(options);
   },
   addSecondaryRoute: function(ifname, route) {
     if(DEBUG) debug("Going to add route to secondary table on " + ifname);
     let options = {
       cmd: "addSecondaryRoute",
       ifname: ifname,
       ip: route.ip,
       prefix: route.prefix,
       gateway: route.gateway
     };
     this.controlMessage(options);
   },
   removeSecondaryRoute: function(ifname, route) {
     if(DEBUG) debug("Going to remove route from secondary table on " + ifname);
     let options = {
       cmd: "removeSecondaryRoute",
       ifname: ifname,
       ip: route.ip,
       prefix: route.prefix,
       gateway: route.gateway
     };
     this.controlMessage(options);
   },
   setNetworkProxy: function(network) {
     try {
       if (!network.httpProxyHost || network.httpProxyHost === "") {
         // Sets direct connection to internet.
         Services.prefs.clearUserPref("network.proxy.type");
         Services.prefs.clearUserPref("network.proxy.share_proxy_settings");
         Services.prefs.clearUserPref("network.proxy.http");
         Services.prefs.clearUserPref("network.proxy.http_port");
         Services.prefs.clearUserPref("network.proxy.ssl");
         Services.prefs.clearUserPref("network.proxy.ssl_port");
         if(DEBUG) debug("No proxy support for " + network.name + " network interface.");
         return;
       }
       if(DEBUG) debug("Going to set proxy settings for " + network.name + " network interface.");
       // Sets manual proxy configuration.
       Services.prefs.setIntPref("network.proxy.type", MANUAL_PROXY_CONFIGURATION);
       // Do not use this proxy server for all protocols.
       Services.prefs.setBoolPref("network.proxy.share_proxy_settings", false);
       Services.prefs.setCharPref("network.proxy.http", network.httpProxyHost);
       Services.prefs.setCharPref("network.proxy.ssl", network.httpProxyHost);
       let port = network.httpProxyPort === 0 ? 8080 : network.httpProxyPort;
       Services.prefs.setIntPref("network.proxy.http_port", port);
       Services.prefs.setIntPref("network.proxy.ssl_port", port);
     } catch(ex) {
         if(DEBUG) debug("Exception " + ex + ". Unable to set proxy setting for " +
                          network.name + " network interface.");
     }
   },
   // Enable/Disable DHCP server.
   setDhcpServer: function(enabled, config, callback) {
     if (null === config) {
       config = {};
     }
     config.cmd = "setDhcpServer";
     config.isAsync = true;
     config.enabled = enabled;
     this.controlMessage(config, function setDhcpServerResult(response) {
       if (!response.success) {
         callback.dhcpServerResult('Set DHCP server error');
         return;
       }
       callback.dhcpServerResult(null);
     });
   },
   // Enable/disable WiFi tethering by sending commands to netd.
   setWifiTethering: function(enable, config, callback) {
     // config should've already contained:
     //   .ifname
     //   .internalIfname
     //   .externalIfname
     config.wifictrlinterfacename = WIFI_CTRL_INTERFACE;
     config.cmd = "setWifiTethering";
     // The callback function in controlMessage may not be fired immediately.
     config.isAsync = true;
     this.controlMessage(config, function setWifiTetheringResult(data) {
       let code = data.resultCode;
       let reason = data.resultReason;
       let enable = data.enable;
       let enableString = enable ? "Enable" : "Disable";
       if(DEBUG) debug(enableString + " Wifi tethering result: Code " + code + " reason " + reason);
       if (isError(code)) {
         callback.wifiTetheringEnabledChange("netd command error");
       } else {
         callback.wifiTetheringEnabledChange(null);
       }
     });
   },
   // Enable/disable USB tethering by sending commands to netd.
   setUSBTethering: function(enable, config, callback) {
     config.cmd = "setUSBTethering";
     // The callback function in controlMessage may not be fired immediately.
     config.isAsync = true;
     this.controlMessage(config, function setUsbTetheringResult(data) {
       let code = data.resultCode;
       let reason = data.resultReason;
       let enable = data.enable;
       let enableString = enable ? "Enable" : "Disable";
       if(DEBUG) debug(enableString + " USB tethering result: Code " + code + " reason " + reason);
       if (isError(code)) {
         callback.usbTetheringEnabledChange("netd command error");
       } else {
         callback.usbTetheringEnabledChange(null);
       }
     });
   },
   // Switch usb function by modifying property of persist.sys.usb.config.
   enableUsbRndis: function(enable, callback) {
     if(DEBUG) debug("enableUsbRndis: " + enable);
     let params = {
       cmd: "enableUsbRndis",
       enable: enable
     };
     // Ask net work to report the result when this value is set to true.
     if (callback) {
       params.report = true;
     } else {
       params.report = false;
     }
     // The callback function in controlMessage may not be fired immediately.
     params.isAsync = true;
     //this._usbTetheringAction = TETHERING_STATE_ONGOING;
     this.controlMessage(params, function(data) {
       callback.enableUsbRndisResult(data.result, data.enable);
     });
   },
   updateUpStream: function(previous, current, callback) {
     let params = {
       cmd: "updateUpStream",
       isAsync: true,
       preInternalIfname: previous.internalIfname,
       preExternalIfname: previous.externalIfname,
       curInternalIfname: current.internalIfname,
       curExternalIfname: current.externalIfname
     };
     this.controlMessage(params, function(data) {
       let code = data.resultCode;
       let reason = data.resultReason;
       if(DEBUG) debug("updateUpStream result: Code " + code + " reason " + reason);
       callback.updateUpStreamResult(!isError(code), data.curExternalIfname);
     });
   },
   shutdown: false,
   observe: function observe(aSubject, aTopic, aData) {
     switch (aTopic) {
       case "xpcom-shutdown":
         debug("NetworkService shutdown");
         this.shutdown = true;
         Services.obs.removeObserver(this, "xpcom-shutdown");
         if (gNetworkWorker) {
           gNetworkWorker.shutdown();
           gNetworkWorker = null;
         }
         break;
     }
   },
 };
 this.NSGetFactory = XPCOMUtils.generateNSGetFactory([NetworkService]);