mirror of
https://github.com/Ylianst/MeshCentral.git
synced 2024-12-26 07:05:52 -05:00
Added support for device stream downloads.
This commit is contained in:
Ylian Saint-Hilaire
parent
0750b181b8
commit
f21a2a07fa
@ -107,6 +107,7 @@
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<Compile Include="meshctrl.js" />
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<Compile Include="meshdesktopmultiplex.js" />
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<Compile Include="meshmail.js" />
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<Compile Include="meshrelay.js" />
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<Compile Include="meshsms.js" />
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<Compile Include="meshscanner.js" />
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<Compile Include="certoperations.js" />
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@ -115,7 +116,7 @@
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<Compile Include="interceptor.js" />
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<Compile Include="meshcentral.js" />
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<Compile Include="meshagent.js" />
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<Compile Include="meshrelay.js" />
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<Compile Include="meshdevicefile.js" />
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<Compile Include="meshuser.js" />
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<Compile Include="mpsserver.js" />
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<Compile Include="mqttbroker.js" />
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@ -1239,7 +1239,7 @@ function createMeshCore(agent) {
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}
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// Sent tunnel statistics to the server, only send this if compression was used.
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if (this.bytesSent_uncompressed.toString() != this.bytesSent_actual.toString()) {
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if ((this.bytesSent_uncompressed) && (this.bytesSent_uncompressed.toString() != this.bytesSent_actual.toString())) {
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mesh.SendCommand({
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action: 'tunnelCloseStats',
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url: tunnel.url,
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@ -1256,7 +1256,7 @@ function createMeshCore(agent) {
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}
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//sendConsoleText("Tunnel #" + this.httprequest.index + " closed. Sent -> " + this.bytesSent_uncompressed + ' bytes (uncompressed), ' + this.bytesSent_actual + ' bytes (actual), ' + this.bytesSent_ratio + '% compression', this.httprequest.sessionid);
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delete tunnels[this.httprequest.index];
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if (this.httprequest.index) { delete tunnels[this.httprequest.index]; }
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/*
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// Close the watcher if required
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@ -1269,7 +1269,7 @@ function createMeshCore(agent) {
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// If there is a upload or download active on this connection, close the file
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if (this.httprequest.uploadFile) { fs.closeSync(this.httprequest.uploadFile); delete this.httprequest.uploadFile; delete this.httprequest.uploadFileid; delete this.httprequest.uploadFilePath; }
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if (this.httprequest.downloadFile) { fs.closeSync(this.httprequest.downloadFile); delete this.httprequest.downloadFile; }
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if (this.httprequest.downloadFile) { delete this.httprequest.downloadFile; }
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// Clean up WebRTC
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if (this.webrtc != null) {
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@ -1311,12 +1311,29 @@ function createMeshCore(agent) {
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else
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{
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// Handle tunnel data
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if (this.httprequest.protocol == 0) { // 1 = Terminal (admin), 2 = Desktop, 5 = Files, 6 = PowerShell (admin), 7 = Plugin Data Exchange, 8 = Terminal (user), 9 = PowerShell (user)
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if (this.httprequest.protocol == 0) { // 1 = Terminal (admin), 2 = Desktop, 5 = Files, 6 = PowerShell (admin), 7 = Plugin Data Exchange, 8 = Terminal (user), 9 = PowerShell (user), 10 = FileTransfer
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// Take a look at the protocol
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if ((data.length > 3) && (data[0] == '{')) { onTunnelControlData(data, this); return; }
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this.httprequest.protocol = parseInt(data);
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if (typeof this.httprequest.protocol != 'number') { this.httprequest.protocol = 0; }
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if ((this.httprequest.protocol == 1) || (this.httprequest.protocol == 6) || (this.httprequest.protocol == 8) || (this.httprequest.protocol == 9))
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if (this.httprequest.protocol == 10) {
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//
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// Basic file transfer
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//
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var stats = null;
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try { stats = require('fs').statSync(this.httprequest.xoptions.file) } catch (e) { }
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try { if (stats) { this.httprequest.downloadFile = fs.createReadStream(this.httprequest.xoptions.file, { flags: 'rbN' }); } } catch (e) { }
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if (this.httprequest.downloadFile) {
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sendConsoleText('BasicFileTransfer, ok, ' + this.httprequest.xoptions.file + ', ' + JSON.stringify(stats));
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this.write(JSON.stringify({ op: 'ok', size: stats.size }));
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this.httprequest.downloadFile.pipe(this);
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this.httprequest.downloadFile.end = function () { }
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} else {
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sendConsoleText('BasicFileTransfer, cancel, ' + this.httprequest.xoptions.file);
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this.write(JSON.stringify({ op: 'cancel' }));
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}
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}
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else if ((this.httprequest.protocol == 1) || (this.httprequest.protocol == 6) || (this.httprequest.protocol == 8) || (this.httprequest.protocol == 9))
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{
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//
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// Remote Terminal
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@ -1808,8 +1825,7 @@ function createMeshCore(agent) {
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MeshServerLog("Failed to start remote desktop after local user rejected (" + this.ws.httprequest.remoteaddr + ")", this.ws.httprequest);
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this.ws.end(JSON.stringify({ ctrlChannel: '102938', type: 'console', msg: e.toString(), msgid: 2 }));
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});
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}
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else {
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} else {
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// User Consent Prompt is not required
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if (this.httprequest.consent && (this.httprequest.consent & 1)) {
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// User Notifications is required
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@ -1066,6 +1066,7 @@ function serverConnect() {
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if (settings.cmd == 'showevents') { console.log(data); return; }
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switch (data.action) {
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case 'serverinfo': { // SERVERINFO
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console.log(data);
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settings.currentDomain = data.serverinfo.domain;
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if (settings.cmd == 'serverinfo') {
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if (args.json) {
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266
meshdevicefile.js
Normal file
266
meshdevicefile.js
Normal file
@ -0,0 +1,266 @@
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/**
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* @description MeshCentral device file download relay module
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* @author Ylian Saint-Hilaire
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* @copyright Intel Corporation 2018-2020
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* @license Apache-2.0
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* @version v0.0.1
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*/
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/*jslint node: true */
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/*jshint node: true */
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/*jshint strict:false */
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/*jshint -W097 */
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/*jshint esversion: 6 */
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"use strict";
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module.exports.CreateMeshDeviceFile = function (parent, ws, res, req, domain, user, meshid, nodeid) {
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var obj = {};
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obj.ws = ws;
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obj.res = res;
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obj.user = user;
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obj.ruserid = null;
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obj.req = req; // Used in multi-server.js
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obj.id = req.query.id;
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obj.file = req.query.f;
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// Check relay authentication
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if ((user == null) && (obj.req.query != null) && (obj.req.query.rauth != null)) {
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const rcookie = parent.parent.decodeCookie(obj.req.query.rauth, parent.parent.loginCookieEncryptionKey, 240); // Cookie with 4 hour timeout
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if (rcookie.ruserid != null) { obj.ruserid = rcookie.ruserid; }
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}
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// Relay session count (we may remove this in the future)
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obj.relaySessionCounted = true;
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parent.relaySessionCount++;
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// Clean a IPv6 address that encodes a IPv4 address
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function cleanRemoteAddr(addr) { if (addr.startsWith('::ffff:')) { return addr.substring(7); } else { return addr; } }
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// Disconnect
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obj.close = function (arg) {
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if (obj.ws != null) {
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if ((arg == 1) || (arg == null)) { try { obj.ws.close(); parent.parent.debug('relay', 'FileRelay: Soft disconnect (' + obj.req.clientIp + ')'); } catch (ex) { console.log(e); } } // Soft close, close the websocket
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if (arg == 2) { try { obj.ws._socket._parent.end(); parent.parent.debug('relay', 'FileRelay: Hard disconnect (' + obj.req.clientIp + ')'); } catch (ex) { console.log(e); } } // Hard close, close the TCP socket
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} else if (obj.res != null) {
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try { res.sendStatus(404); } catch (ex) { }
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}
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// Aggressive cleanup
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delete obj.ws;
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delete obj.res;
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delete obj.peer;
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};
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// If there is no authentication, drop this connection
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if ((obj.id == null) || ((obj.user == null) && (obj.ruserid == null))) { try { obj.close(); parent.parent.debug('relay', 'FileRelay: Connection with no authentication (' + obj.req.clientIp + ')'); } catch (e) { console.log(e); } return; }
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obj.sendAgentMessage = function (command, user, domainid) {
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var rights, mesh;
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if (command.nodeid == null) return false;
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var splitnodeid = command.nodeid.split('/');
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// Check that we are in the same domain and the user has rights over this node.
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if ((splitnodeid[0] == 'node') && (splitnodeid[1] == domainid)) {
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// Get the user object
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// See if the node is connected
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var agent = parent.wsagents[command.nodeid];
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if (agent != null) {
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// Check if we have permission to send a message to that node
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rights = parent.GetNodeRights(user, agent.dbMeshKey, agent.dbNodeKey);
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mesh = parent.meshes[agent.dbMeshKey];
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if ((rights != null) && (mesh != null) || ((rights & 16) != 0)) { // TODO: 16 is console permission, may need more gradular permission checking
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command.rights = rights; // Add user rights flags to the message
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if (typeof command.consent == 'number') { command.consent = command.consent | mesh.consent; } else { command.consent = mesh.consent; } // Add user consent
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if (typeof domain.userconsentflags == 'number') { command.consent |= domain.userconsentflags; } // Add server required consent flags
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command.username = user.name; // Add user name
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command.realname = user.realname; // Add real name
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if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
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delete command.nodeid; // Remove the nodeid since it's implyed.
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agent.send(JSON.stringify(command));
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return true;
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}
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} else {
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// Check if a peer server is connected to this agent
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var routing = parent.parent.GetRoutingServerId(command.nodeid, 1); // 1 = MeshAgent routing type
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if (routing != null) {
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// Check if we have permission to send a message to that node
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rights = parent.GetNodeRights(user, routing.meshid, command.nodeid);
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mesh = parent.meshes[routing.meshid];
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if (rights != null || ((rights & 16) != 0)) { // TODO: 16 is console permission, may need more gradular permission checking
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command.rights = rights; // Add user rights flags to the message
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if (typeof command.consent == 'number') { command.consent = command.consent | mesh.consent; } else { command.consent = mesh.consent; } // Add user consent
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if (typeof domain.userconsentflags == 'number') { command.consent |= domain.userconsentflags; } // Add server required consent flags
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command.username = user.name; // Add user name
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command.realname = user.realname; // Add real name
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if (typeof domain.desktopprivacybartext == 'string') { command.privacybartext = domain.desktopprivacybartext; } // Privacy bar text
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parent.parent.multiServer.DispatchMessageSingleServer(command, routing.serverid);
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return true;
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}
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}
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}
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}
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return false;
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};
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function performRelay() {
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if (obj.id == null) { try { obj.close(); } catch (e) { } return null; } // Attempt to connect without id, drop this.
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if (obj.ws != null) { obj.ws._socket.setKeepAlive(true, 240000); } // Set TCP keep alive
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// Check the peer connection status
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{
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var relayinfo = parent.wsrelays[obj.id];
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if (relayinfo) {
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if (relayinfo.state == 1) {
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// Check that at least one connection is authenticated
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if ((obj.authenticated != true) && (relayinfo.peer1.authenticated != true)) {
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if (ws) { ws.close(); }
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parent.parent.debug('relay', 'FileRelay without-auth: ' + obj.id + ' (' + obj.req.clientIp + ')');
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delete obj.id;
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delete obj.ws;
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delete obj.peer;
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return null;
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}
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// Connect to peer
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obj.peer = relayinfo.peer1;
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obj.peer.peer = obj;
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relayinfo.peer2 = obj;
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relayinfo.state = 2;
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// Remove the timeout
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if (relayinfo.timeout) { clearTimeout(relayinfo.timeout); delete relayinfo.timeout; }
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var agentws = null, file = null;
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if (relayinfo.peer1.ws) { relayinfo.peer1.ws.res = relayinfo.peer2.res; relayinfo.peer1.ws.res = relayinfo.peer2.res; relayinfo.peer1.ws.file = relayinfo.peer2.file; agentws = relayinfo.peer1.ws; file = relayinfo.peer2.file; }
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if (relayinfo.peer2.ws) { relayinfo.peer2.ws.res = relayinfo.peer1.res; relayinfo.peer2.ws.res = relayinfo.peer1.res; relayinfo.peer2.ws.file = relayinfo.peer1.file; agentws = relayinfo.peer2.ws; file = relayinfo.peer1.file; }
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agentws._socket.resume(); // Release the traffic
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try { agentws.send('c'); } catch (ex) { } // Send connect to agent
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try { agentws.send(JSON.stringify({ type: 'options', file: file })); } catch (ex) { } // Send options to agent
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try { agentws.send('10'); } catch (ex) { } // Send file transfer protocol to agent
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parent.parent.debug('relay', 'FileRelay connected: ' + obj.id + ' (' + obj.req.clientIp + ' --> ' + obj.peer.req.clientIp + ')');
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// Log the connection
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if (sessionUser != null) {
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var event = { etype: 'relay', action: 'relaylog', domain: domain.id, userid: sessionUser._id, username: sessionUser.name, msg: "Started file transfer session" + ' \"' + obj.id + '\" from ' + obj.peer.req.clientIp + ' to ' + req.clientIp, protocol: req.query.p, nodeid: req.query.nodeid };
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parent.parent.DispatchEvent(['*', sessionUser._id], obj, event);
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}
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} else {
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// Connected already, drop this connection.
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if (obj.ws) { obj.ws.close(); }
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parent.parent.debug('relay', 'FileRelay duplicate: ' + obj.id + ' (' + obj.req.clientIp + ')');
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delete obj.id;
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delete obj.ws;
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delete obj.peer;
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return null;
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}
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} else {
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// Wait for other relay connection
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parent.wsrelays[obj.id] = { peer1: obj, state: 1, timeout: setTimeout(closeBothSides, 30000) };
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parent.parent.debug('relay', 'FileRelay holding: ' + obj.id + ' (' + obj.req.clientIp + ') ' + (obj.authenticated ? 'Authenticated' : ''));
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// Check if a peer server has this connection
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if (parent.parent.multiServer != null) {
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var rsession = parent.wsPeerRelays[obj.id];
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if ((rsession != null) && (rsession.serverId > parent.parent.serverId)) {
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// We must initiate the connection to the peer
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parent.parent.multiServer.createPeerRelay(ws, req, rsession.serverId, obj.req.session.userid);
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delete parent.wsrelays[obj.id];
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} else {
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// Send message to other peers that we have this connection
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parent.parent.multiServer.DispatchMessage(JSON.stringify({ action: 'relay', id: obj.id }));
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}
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}
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}
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}
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}
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// Websocket handling
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if (obj.ws != null) {
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// When data is received from the mesh relay web socket
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obj.ws.on('message', function (data) {
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if (typeof data == 'string') {
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var cmd = null;
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try { cmd = JSON.parse(data); } catch (ex) { }
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if ((cmd == null) || (typeof cmd.op == 'string')) {
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if (cmd.op == 'ok') {
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if (typeof cmd.size == 'number') {
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this.res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename="' + require('path').basename(this.file) + '"', 'Content-Length': cmd.size });
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} else {
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this.res.set({ 'Cache-Control': 'no-cache, no-store, must-revalidate', 'Pragma': 'no-cache', 'Expires': '0', 'Content-Type': 'application/octet-stream', 'Content-Disposition': 'attachment; filename="' + require('path').basename(this.file) + '"' });
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}
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} else {
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try { this.res.sendStatus(401); } catch (ex) { }
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}
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}
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} else {
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var unpause = function unpauseFunc(err) { try { unpauseFunc.s.resume(); } catch (ex) { } }
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unpause.s = this._socket;
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this._socket.pause();
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try { this.res.write(data, unpause); } catch (ex) { }
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}
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});
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// If error, close both sides of the relay.
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obj.ws.on('error', function (err) {
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parent.relaySessionErrorCount++;
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//console.log('FileRelay error from ' + obj.req.clientIp + ', ' + err.toString().split('\r')[0] + '.');
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closeBothSides();
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});
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// If the relay web socket is closed, close both sides.
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obj.ws.on('close', function (req) { closeBothSides(); });
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}
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// Close both our side and the peer side.
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function closeBothSides() {
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if (obj.relaySessionCounted) { parent.relaySessionCount--; delete obj.relaySessionCounted; }
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if (obj.id != null) {
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var relayinfo = parent.wsrelays[obj.id];
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if (relayinfo != null) {
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if (relayinfo.state == 2) {
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var peer = (relayinfo.peer1 == obj) ? relayinfo.peer2 : relayinfo.peer1;
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// Disconnect the peer
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try { if (peer.relaySessionCounted) { parent.relaySessionCount--; delete peer.relaySessionCounted; } } catch (ex) { console.log(ex); }
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parent.parent.debug('relay', 'FileRelay disconnect: ' + obj.id + ' (' + obj.req.clientIp + ' --> ' + peer.req.clientIp + ')');
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if (peer.ws) { try { peer.ws.close(); } catch (e) { } try { peer.ws._socket._parent.end(); } catch (e) { } }
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if (peer.res) { try { peer.res.end(); } catch (ex) { } }
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// Aggressive peer cleanup
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delete peer.id;
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delete peer.ws;
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delete peer.res;
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delete peer.peer;
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} else {
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parent.parent.debug('relay', 'FileRelay disconnect: ' + obj.id + ' (' + obj.req.clientIp + ')');
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}
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if (obj.ws) { try { obj.ws.close(); } catch (ex) { } }
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if (obj.res) { try { obj.res.end(); } catch (ex) { } }
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delete parent.wsrelays[obj.id];
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}
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}
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// Aggressive cleanup
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delete obj.id;
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delete obj.ws;
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delete obj.res;
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delete obj.peer;
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}
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// Mark this relay session as authenticated if this is the user end.
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obj.authenticated = (user != null);
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if (obj.authenticated) {
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// Send connection request to agent
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const rcookie = parent.parent.encodeCookie({ ruserid: user._id }, parent.parent.loginCookieEncryptionKey);
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const command = { nodeid: nodeid, action: 'msg', type: 'tunnel', userid: user._id, value: '*/devicefile.ashx?id=' + obj.id + '&rauth=' + rcookie, soptions: {} };
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parent.parent.debug('relay', 'FileRelay: Sending agent tunnel command: ' + JSON.stringify(command));
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if (obj.sendAgentMessage(command, user, domain.id) == false) { delete obj.id; parent.parent.debug('relay', 'FileRelay: Unable to contact this agent (' + obj.req.clientIp + ')'); }
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}
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|
||||
// If this is not an authenticated session, or the session does not have routing instructions, just go ahead an connect to existing session.
|
||||
performRelay();
|
||||
return obj;
|
||||
};
|
||||
@ -7874,7 +7874,12 @@
|
||||
h = '<div class=filelist file=999><input file=999 style=float:left name=fd class=fcb type=checkbox onchange=p13setActions() value=\'' + f.nx + '\'> <span style=float:right title="' + title + '">' + right + '</span><span><div class=fileIcon' + f.t + ' onclick=p13folderset("' + encodeURIComponentEx(f.nx) + '")></div><a href=# style=cursor:pointer onclick=\'return p13folderset("' + encodeURIComponentEx(f.nx) + '")\'>' + shortname + '</a></span></div>';
|
||||
} else {
|
||||
var link = shortname;
|
||||
if (f.s > 0) { link = '<a href=# style=cursor:pointer onclick="return p13downloadfile(\'' + encodeURIComponentEx(newlinkpath + '/' + name) + '\',\'' + encodeURIComponentEx(name) + '\',' + f.s + ')">' + shortname + '</a>'; }
|
||||
if (f.s > 0) {
|
||||
// Local link
|
||||
//link = '<a href=# style=cursor:pointer onclick="return p13downloadfile(\'' + encodeURIComponentEx(newlinkpath + '/' + name) + '\',\'' + encodeURIComponentEx(name) + '\',' + f.s + ')">' + shortname + '</a>';
|
||||
// Server link
|
||||
link = '<a href="devicefile.ashx?c=' + authCookie + '&m=' + currentNode.meshid.split('/')[2] + '&n=' + currentNode._id.split('/')[2] + '&f=' + encodeURIComponentEx(newlinkpath + '/' + name) + '" download style=cursor:pointer">' + shortname + '</a>';
|
||||
}
|
||||
h = '<div id=fileEntry cmenu=filesContextMenu fileIndex=' + i + ' class=filelist file=3><input file=3 style=float:left name=fd class=fcb type=checkbox onchange=p13setActions() value=\'' + f.nx + '\'> <span class=fsize>' + fdatestr + '</span><span style=float:right>' + EscapeHtml(fsize) + '</span><span><div class=fileIcon' + f.t + '></div>' + link + '</span></div>';
|
||||
}
|
||||
|
||||
|
||||
27
webserver.js
27
webserver.js
@ -57,6 +57,7 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
|
||||
obj.express = require('express');
|
||||
obj.meshAgentHandler = require('./meshagent.js');
|
||||
obj.meshRelayHandler = require('./meshrelay.js');
|
||||
obj.meshDeviceFileHandler = require('./meshdevicefile.js');
|
||||
obj.meshDesktopMultiplexHandler = require('./meshdesktopmultiplex.js');
|
||||
obj.meshIderHandler = require('./amt/amt-ider.js');
|
||||
obj.meshUserHandler = require('./meshuser.js');
|
||||
@ -2786,6 +2787,30 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
|
||||
}
|
||||
}
|
||||
|
||||
// Handle device file request
|
||||
function handleDeviceFile(req, res) {
|
||||
const domain = checkUserIpAddress(req, res);
|
||||
if (domain == null) { return; }
|
||||
if ((req.query.c == null) || (req.query.m == null) || (req.query.n == null) || (req.query.f == null)) { res.sendStatus(404); return; }
|
||||
|
||||
// Check the inbound desktop sharing cookie
|
||||
var c = obj.parent.decodeCookie(req.query.c, obj.parent.loginCookieEncryptionKey, 60); // 60 minute timeout
|
||||
if ((c == null) || (c.domainid !== domain.id)) { res.sendStatus(404); return; }
|
||||
|
||||
// Check userid
|
||||
const user = obj.users[c.userid];
|
||||
if ((c == user)) { res.sendStatus(404); return; }
|
||||
|
||||
// Check if this user has permission to manage this computer
|
||||
const meshid = 'mesh/' + domain.id + '/' + req.query.m;
|
||||
const nodeid = 'node/' + domain.id + '/' + req.query.n;
|
||||
if ((obj.GetNodeRights(c.userid, meshid, nodeid) & MESHRIGHT_REMOTECONTROL) == 0) { res.sendStatus(404); return; }
|
||||
|
||||
// All good, start the file transfer
|
||||
req.query.id = getRandomLowerCase(12);
|
||||
obj.meshDeviceFileHandler.CreateMeshDeviceFile(obj, null, res, req, domain, user, meshid, nodeid);
|
||||
}
|
||||
|
||||
// Handle logo request
|
||||
function handleLogoRequest(req, res) {
|
||||
const domain = checkUserIpAddress(req, res);
|
||||
@ -4677,6 +4702,8 @@ module.exports.CreateWebServer = function (parent, db, args, certificates) {
|
||||
obj.app.ws(url + 'webrelay.ashx', function (ws, req) { PerformWSSessionAuth(ws, req, false, handleRelayWebSocket); });
|
||||
obj.app.ws(url + 'webider.ashx', function (ws, req) { PerformWSSessionAuth(ws, req, false, function (ws1, req1, domain, user, cookie) { obj.meshIderHandler.CreateAmtIderSession(obj, obj.db, ws1, req1, obj.args, domain, user); }); });
|
||||
obj.app.ws(url + 'control.ashx', function (ws, req) { PerformWSSessionAuth(ws, req, false, function (ws1, req1, domain, user, cookie) { obj.meshUserHandler.CreateMeshUser(obj, obj.db, ws1, req1, obj.args, domain, user); }); });
|
||||
obj.app.ws(url + 'devicefile.ashx', function (ws, req) { obj.meshDeviceFileHandler.CreateMeshDeviceFile(obj, ws, null, req, domain); });
|
||||
obj.app.get(url + 'devicefile.ashx', handleDeviceFile);
|
||||
obj.app.get(url + 'logo.png', handleLogoRequest);
|
||||
obj.app.post(url + 'translations', handleTranslationsRequest);
|
||||
obj.app.get(url + 'welcome.jpg', handleWelcomeImageRequest);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user