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comparison backends/file.js @ 27:a36a514e8be8

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Learned that “hg addremove” can be good, sometimes.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Mon, 01 Nov 2010 02:41:04 +0100
parents
children 7cfcd7d5796c
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26:f2e9365bc8ec 27:a36a514e8be8
1 /*
2 * Copyright (C) 2010 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
3 *
4 * This file is part of PSĜS, a PubSub server written in JavaScript.
5 *
6 * PSĜS is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License.
10 *
11 * PSĜS is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
15 *
16 * You should have received a copy of the GNU Affero General Public License
17 * along with PSĜS. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20 var fs = require('fs');
21 var backend = exports;
22
23 backend.save = function(file) {
24 function sanitize(o) {
25 var n = {};
26 for (var i in o) {
27 if (i == 'content' || o[i].setISO8601)
28 n[i] = o[i].toString();
29 else if (o[i] instanceof Array)
30 n[i] = o[i];
31 else if (typeof o[i] == 'object')
32 n[i] = sanitize(o[i]);
33 else if (typeof o[i] == 'function')
34 ;
35 else
36 n[i] = o[i];
37 }
38 return n;
39 }
40
41 var data = sanitize(backend.list);
42
43 if (!file)
44 file = 'save.json';
45
46 fs.writeFile(file, require('sys').inspect(data, null, null));
47 }
48
49 backend.load = function(file) {
50 var xmpp = require('xmpp');
51 function parseStanza(path, content) {
52 var stanza = null;
53 var stream = new xmpp.Stream({
54 stanza: function (stanza) {
55 path[content] = stanza;
56 }
57 });
58 stream.opened = true;
59 stream.data(path[content]);
60 }
61
62 function endParsing(o) {
63 var regexp = /\d{4}-\d\d-\d\dT\d\d:\d\d:\d\dZ/;
64 for (var i in o) {
65 if (typeof o[i] == 'string' && i == 'content')
66 parseStanza(o, i);
67 else if (typeof o[i] == 'string' && regexp(o[i])) {
68 var today = new Date();
69 today.setISO8601(o[i]);
70 o[i] = today;
71 } else if (typeof o[i] == 'object')
72 endParsing(o[i]);
73 }
74 return o;
75 }
76
77 if (!file)
78 file = 'save.json';
79
80 fs.stat(file, function(err, stats) {
81 if (err)
82 fs.writeFileSync(file, '{}');
83 else if (!stats.isFile()) {
84 console.log('\033[1;41mThe file “' + file + '” isn’t a regular file. Exiting.\033[0m');
85 process.exit(1);
86 }
87
88 var data = fs.readFileSync(file);
89 var obj = eval('('+data+')');
90 backend.list = endParsing(obj);
91
92 for (var i in backend.list)
93 for (var j in Node.prototype)
94 backend.list[i][j] = Node.prototype[j];
95 });
96 }