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var util = require("util"),
http = require("http"),
url = require("url"),
fileSystem = require('fs'),
path = require('path');
var responseMap = [
{pattern:/\btest\?test\=true$/, response:"test-ok.xml"},
{pattern:/\btest\?test=true&henk=liev$/, response:"test-ok.xml"},
// 'begins with' test
{pattern:/\btest\?test=true&klaas=stom/, response:"test-ok.xml"},
// partial match / ignore datetime test
{pattern:/\btest\?yearCard=false&dateTime=(.*)&test=true/, response:"test-ok.xml"},
// real life match
{pattern:/\bmobile-api-planner\?yearCard=false&dateTime=(.*)&previousAdvices=0&hslAllowed=false&toStation=bd&nextAdvices=1&fromStation=rtd&departure=true/,
response:"test-ok.xml"},
{pattern:/\bmobile-api-planner\?(?=.*hslAllowed=true)(?=.*fromStation=ASD)(?=.*toStation=RTD)/, response:"ams-rtd-fyra.xml"},
{pattern:/\bmobile-api-planner\?(?=.*fromCity=Amsterdam)(?=.*fromStreet=Nieuwezijds Achterburgwal)(?=.*toStation=RTD)/, response:"ams-nwz-rtd-fyra.xml"}
];
function findResponseFor(path) {
var result = null;
responseMap.forEach(function(candidate) {
if (path.match(candidate.pattern)) {
result = candidate.response;
return;
}
})
return result;
}
function writeFileToResponse(responseFile, response) {
var filePath = path.join(__dirname, 'response', responseFile);
var stat = fileSystem.statSync(filePath);
response.writeHead(200, {"Content-Type": "application/xml", 'Content-Length': stat.size});
var readStream = fileSystem.createReadStream(filePath);
readStream.on('data', function(data) {
response.write(data);
});
readStream.on('end', function() {
response.end();
});
}
function writeWebserviceToResponse(request, response) {
var params = url.parse(request.url);
var options = {
host: 'webservices.dinges.nl',
path: params.path,
headers: {'Authorization' : request.headers.authorization}
};
var req = http.get(options, function(res) {
res.setEncoding('utf8');
response.writeHead(res.statusCode, res.headers);
res.on('data', function (chunk) {
response.write(chunk);
});
res.on('end', function() {
response.end();
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
}
http.createServer(function(request, response) {
var params = url.parse(request.url);
console.log("request params: " + util.inspect(params));
var responseFile = findResponseFor(params.path);
if (responseFile != null) {
console.log("Response found: " + responseFile);
writeFileToResponse(responseFile, response);
} else {
console.log("Response not found, calling NS API");
writeWebserviceToResponse(request, response);
}
}).listen(1337);
util.puts("Server running at http://localhost:1337/");
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