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annotate Resources/Samples/Lua/CallWebService.js @ 1055:6f923d52a46c

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call Web services from Lua
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 24 Jul 2014 11:37:02 +0200
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * Permission is hereby granted, free of charge, to any person
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7 * obtaining a copy of this software and associated documentation
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8 * files (the "Software"), to deal in the Software without
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9 * restriction, including without limitation the rights to use, copy,
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10 * modify, merge, publish, distribute, sublicense, and/or sell copies
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11 * of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be
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15 * included in all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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21 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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22 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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24 * SOFTWARE.
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25 **/
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26
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27
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28 /**
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29 * This file is a simple echo Web service implemented using
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30 * "node.js". Whenever it receives a POST HTTP query, it echoes its
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31 * body both to stdout and to the client. Credentials are checked.
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32 **/
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33
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34
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35 // Parameters of the ECHO server
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36 var port = 8000;
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37 var username = 'alice';
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38 var password = 'alicePassword';
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39
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40
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41 var http = require('http');
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42 var authorization = 'Basic ' + new Buffer(username + ':' + password).toString('base64')
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43
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44 var server = http.createServer(function(req, response) {
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45 // Check the credentials
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46 if (req.headers.authorization != authorization)
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47 {
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48 console.log('Bad credentials, access not allowed');
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49 response.writeHead(401);
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50 response.end();
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51 return;
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52 }
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53
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54 switch (req.method)
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55 {
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56 case 'POST':
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57 {
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58 var body = '';
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59
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60 req.on('data', function (data) {
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61 response.write(data);
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62 body += data;
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63 });
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64
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65 req.on('end', function () {
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66 console.log('Message received: ' + body);
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67 response.end();
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68 });
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69
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70 break;
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71 }
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72
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73 default:
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74 console.log('Method ' + req.method + ' is not supported by this ECHO Web service');
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75 response.writeHead(405, {'Allow': 'POST'});
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76 response.end();
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77 }
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78 });
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79
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80 server.listen(port);