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/**
* Request Analyzer
* Belongs to Decentraleyes.
*
* @author Thomas Rientjes
* @since 2014-05-30
* @license MPL 2.0
*
* 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';
/**
* Imports
*/
var mappings = require('./mappings');
/**
* Public Methods
*/
function isValidCandidate (httpChannel) {
if (mappings[httpChannel.URI.host] === undefined) { return false; }
if (httpChannel.requestMethod != 'GET') { return false; }
return true;
}
function getLocalTarget (channelHost, channelPath) {
var basePath, hostMappings, resourceMappings, localTarget;
hostMappings = mappings[channelHost];
// Ignore mapping files.
if (channelPath.indexOf('.min.js.map') > -1) { return false; }
if (channelPath.indexOf('.min.map') > -1) { return false; }
basePath = matchBasePath(hostMappings, channelPath);
if (!basePath) { return false; }
resourceMappings = hostMappings[basePath];
localTarget = matchResourcePath(resourceMappings, basePath, channelPath);
if (!localTarget) { return false; }
return localTarget;
}
/**
* Exports
*/
exports.isValidCandidate = isValidCandidate;
exports.getLocalTarget = getLocalTarget;
/**
* Private Methods
*/
function matchBasePath (hostMappings, channelPath) {
for (var basePath in hostMappings) {
if (channelPath.indexOf(basePath) === 0) {
return basePath;
}
}
return false;
}
function matchResourcePath(resourceMappings, basePath, channelPath) {
var resourcePath, versionNumber, resourcePattern;
resourcePath = channelPath.replace(basePath, '');
versionNumber = resourcePath.match(/(?:\d{1,2}\.){1,3}\d{1,2}/);
resourcePattern = resourcePath.replace(versionNumber, '{version}');
for (var resourceMold in resourceMappings) {
if (resourcePattern.indexOf(resourceMold) === 0) {
var localTarget = {
path: resourceMappings[resourceMold].path,
type: resourceMappings[resourceMold].type,
};
// Fill in the appropriate version number.
localTarget.path = localTarget.path.replace('{version}', versionNumber);
return localTarget;
}
}
return false;
}