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/*
* Copyright © 2016-2017 European Support Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
const request = require('request');
const fs = require('fs');
require('node-zip');
function _request(context, method, path, data, isBinary=false, type='workflow') {
let server = context.getUrlForType(type);
let options = {
method: method,
url: server + path,
headers: context.headers[type]
};
console.log('--> Calling REST ' + options.method +' url: ' + options.url);
return new Promise(function (resolve, reject) {
if (method === 'POST' || method === 'PUT') {
if (isBinary) {
var formData = {
upload: fs.createReadStream(data),
};
options.formData = formData;
} else {
options.json = data;
}
}
request(options, function (err, result, data) {
context.inputData = null;
if (err) {
console.error('Request URL: ' + result.request.uri.href);
console.error('Request Method: ' + result.request.method);
console.error('Response Status Code: ' +result.statusCode);
console.log(err);
reject(err);
} else {
let isExpected = (context.shouldFail) ? (result.statusCode != 200 && result.statusCode != 201) : (result.statusCode == 200 || result.statusCode == 201);
if (!isExpected) {
console.error('Request URL: ' + result.request.uri.href);
console.error('Request Method: ' + result.request.method);
console.error('Response Status Code: ' +result.statusCode);
console.error(result.body);
reject('Status Code was ' + result.statusCode);
}
if (context.shouldFail && context.responseStatusCode) {
if (result.statusCode !== context.responseStatusCode) {
reject('Response Status Code was ' + result.statusCode + ' instead of ' + context.responseStatusCode);
}
}
if (context.shouldFail && context.errorCode) {
if (typeof data === 'string' && data) {
data = JSON.parse(data);
}
let errorCode = data.errorCode;
let contextErrorCode = context.errorCode;
context.errorCode = null;
if (errorCode !== contextErrorCode) {
reject('Error Code was ' + errorCode + ' instead of ' + contextErrorCode);
}
}
if (context.shouldFail && context.errorMessage) {
if (typeof data === 'string' && data) {
data = JSON.parse(data);
}
let errorMessage = data.message;
let contextErrorMessage = context.errorMessage;
context.errorMessage = null;
if (errorMessage !== contextErrorMessage) {
reject('Error Message was ' + errorMessage + ' instead of ' + contextErrorMessage);
}
}
if (context.shouldFail) {
context.shouldFail = false;
resolve({statusCode: result.statusCode, data: {}});
return;
}
if (method === 'GET' && isBinary) {
// downloading (NetworkPackage) files
return ({
blob: blobUtil.createBlob([data], {type: 'text/plain'}),
headers: result.headers
});
} else {
if (typeof data === 'string' && data) {
data = JSON.parse(data);
}
context.responseData = data;
context.inputData = data;
resolve({statusCode: result.statusCode, data: data});
}
}
});
});
}
function download(context, path, filePath, callback, type='workflow') {
let server = context.getUrlForType(type);
let options = {
method: 'GET',
url: server + path,
headers: context.headers[type]
};
console.log('--> Calling REST download url: ' + options.url);
var file = fs.createWriteStream(filePath);
var r = request(options).pipe(file);
r.on('error', function (err) {
console.log(err);
callback(err);
});
r.on('finish', function () {
file.close();
let zipFile = fs.readFileSync(filePath, 'binary');
let zip = new JSZip(zipFile, {base64: false, checkCRC32: true});
if (zip.files['MANIFEST.json']) {
let manifestData = zip.files['MANIFEST.json']._data;
manifestData = manifestData.replace(/\\n/g, '');
context.responseData = JSON.parse(manifestData);
}
callback();
});
};
function _random() {
let d = new Date();
return d.getTime().toString().split('').reverse().join('');
}
function _getJSONFromFile(file) {
return JSON.parse(fs.readFileSync(file, 'utf8'));
}
module.exports = {
request: _request,
random : _random,
getJSONFromFile: _getJSONFromFile,
download: download
};
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