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annotate backends/file.js @ 28:7cfcd7d5796c

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Replace Paul Sowden’s ISO8601 functions by my own, since their licence is possibly incompatible with AGPL.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 01 Nov 2010 03:01:40 +0100
parents a36a514e8be8
children e007a6364bf0
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1 /*
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2 * Copyright (C) 2010 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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3 *
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4 * This file is part of PSĜS, a PubSub server written in JavaScript.
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5 *
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6 * PSĜS is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU Affero General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License.
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10 *
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11 * PSĜS is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU Affero General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Affero General Public License
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17 * along with PSĜS. If not, see <http://www.gnu.org/licenses/>.
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18 */
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19
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20 var fs = require('fs');
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21 var backend = exports;
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22
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23 backend.save = function(file) {
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24 function sanitize(o) {
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25 var n = {};
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26 for (var i in o) {
28
7cfcd7d5796c Replace Paul Sowden’s ISO8601 functions by my own, since their licence is possibly incompatible with AGPL.
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27 if (i == 'content' || o[i].setFromISO8601)
27
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28 n[i] = o[i].toString();
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29 else if (o[i] instanceof Array)
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30 n[i] = o[i];
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31 else if (typeof o[i] == 'object')
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32 n[i] = sanitize(o[i]);
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33 else if (typeof o[i] == 'function')
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34 ;
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35 else
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36 n[i] = o[i];
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37 }
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38 return n;
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39 }
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40
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41 var data = sanitize(backend.list);
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42
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43 if (!file)
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44 file = 'save.json';
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45
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46 fs.writeFile(file, require('sys').inspect(data, null, null));
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47 }
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48
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49 backend.load = function(file) {
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50 var xmpp = require('xmpp');
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51 function parseStanza(path, content) {
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52 var stanza = null;
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53 var stream = new xmpp.Stream({
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54 stanza: function (stanza) {
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55 path[content] = stanza;
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56 }
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57 });
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58 stream.opened = true;
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59 stream.data(path[content]);
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60 }
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61
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62 function endParsing(o) {
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63 var regexp = /\d{4}-\d\d-\d\dT\d\d:\d\d:\d\dZ/;
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64 for (var i in o) {
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65 if (typeof o[i] == 'string' && i == 'content')
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66 parseStanza(o, i);
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67 else if (typeof o[i] == 'string' && regexp(o[i])) {
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68 var today = new Date();
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69 today.setFromISO8601(o[i]);
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70 o[i] = today;
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71 } else if (typeof o[i] == 'object')
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72 endParsing(o[i]);
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73 }
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74 return o;
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75 }
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76
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77 if (!file)
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78 file = 'save.json';
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79
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80 fs.stat(file, function(err, stats) {
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81 if (err)
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82 fs.writeFileSync(file, '{}');
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83 else if (!stats.isFile()) {
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84 console.log('\033[1;41mThe file “' + file + '” isn’t a regular file. Exiting.\033[0m');
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85 process.exit(1);
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86 }
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87
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88 var data = fs.readFileSync(file);
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89 var obj = eval('('+data+')');
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90 backend.list = endParsing(obj);
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91
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92 for (var i in backend.list)
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93 for (var j in Node.prototype)
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94 backend.list[i][j] = Node.prototype[j];
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95 });
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96 }