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![Arlen22](/assets/img/avatar_default.png)
* Add pathPrefix to state, and options to request handler * use ternary operator instead of default empty object * Fix styling issues * Update server.js * Add boot to server and filesystem adapter
95 lines
3.2 KiB
JavaScript
95 lines
3.2 KiB
JavaScript
/*\
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title: $:/core/modules/server/authenticators/basic.js
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type: application/javascript
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module-type: authenticator
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Authenticator for WWW basic authentication
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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if($tw.node) {
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var util = require("util"),
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fs = require("fs"),
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url = require("url"),
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path = require("path");
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}
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function BasicAuthenticator(server) {
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this.server = server;
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this.credentialsData = [];
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}
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/*
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Returns true if the authenticator is active, false if it is inactive, or a string if there is an error
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*/
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BasicAuthenticator.prototype.init = function() {
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// Read the credentials data
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this.credentialsFilepath = this.server.get("credentials");
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if(this.credentialsFilepath) {
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var resolveCredentialsFilepath = path.resolve(this.server.boot.wikiPath,this.credentialsFilepath);
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if(fs.existsSync(resolveCredentialsFilepath) && !fs.statSync(resolveCredentialsFilepath).isDirectory()) {
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var credentialsText = fs.readFileSync(resolveCredentialsFilepath,"utf8"),
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credentialsData = $tw.utils.parseCsvStringWithHeader(credentialsText);
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if(typeof credentialsData === "string") {
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return "Error: " + credentialsData + " reading credentials from '" + resolveCredentialsFilepath + "'";
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} else {
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this.credentialsData = credentialsData;
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}
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} else {
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return "Error: Unable to load user credentials from '" + resolveCredentialsFilepath + "'";
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}
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}
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// Add the hardcoded username and password if specified
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if(this.server.get("username") && this.server.get("password")) {
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this.credentialsData = this.credentialsData || [];
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this.credentialsData.push({
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username: this.server.get("username"),
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password: this.server.get("password")
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});
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}
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return this.credentialsData.length > 0;
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};
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/*
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Returns true if the request is authenticated and assigns the "authenticatedUsername" state variable.
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Returns false if the request couldn't be authenticated having sent an appropriate response to the browser
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*/
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BasicAuthenticator.prototype.authenticateRequest = function(request,response,state) {
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// Extract the incoming username and password from the request
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var header = request.headers.authorization || "";
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if(!header && state.allowAnon) {
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// If there's no header and anonymous access is allowed then we don't set authenticatedUsername
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return true;
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}
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var token = header.split(/\s+/).pop() || "",
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auth = $tw.utils.base64Decode(token),
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parts = auth.split(/:/),
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incomingUsername = parts[0],
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incomingPassword = parts[1];
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// Check that at least one of the credentials matches
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var matchingCredentials = this.credentialsData.find(function(credential) {
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return credential.username === incomingUsername && credential.password === incomingPassword;
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});
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if(matchingCredentials) {
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// If so, add the authenticated username to the request state
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state.authenticatedUsername = incomingUsername;
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return true;
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} else {
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// If not, return an authentication challenge
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response.writeHead(401,"Authentication required",{
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"WWW-Authenticate": 'Basic realm="Please provide your username and password to login to ' + state.server.servername + '"'
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});
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response.end();
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return false;
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}
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};
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exports.AuthenticatorClass = BasicAuthenticator;
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})();
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