1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/**
* Handles the import requests
*/
/*
* 2011 Peter 'Pita' Martischka (Primary Technology Ltd)
* 2012 Iván Eixarch
*
* 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.
*/
var ERR = require("async-stacktrace")
, padManager = require("../db/PadManager")
, padMessageHandler = require("./PadMessageHandler")
, async = require("async")
, fs = require("fs")
, path = require("path")
, settings = require('../utils/Settings')
, formidable = require('formidable')
, os = require("os")
, importHtml = require("../utils/ImportHtml");
//load abiword only if its enabled
if(settings.abiword != null)
var abiword = require("../utils/Abiword");
//for node 0.6 compatibily, os.tmpDir() only works from 0.8
var tmpDirectory = process.env.TEMP || process.env.TMPDIR || process.env.TMP || '/tmp';
/**
* do a requested import
*/
exports.doImport = function(req, res, padId)
{
//pipe to a file
//convert file to html via abiword
//set html in the pad
var srcFile, destFile
, pad
, text;
async.series([
//save the uploaded file to /tmp
function(callback) {
var form = new formidable.IncomingForm();
form.keepExtensions = true;
form.uploadDir = tmpDirectory;
form.parse(req, function(err, fields, files) {
//the upload failed, stop at this point
if(err || files.file === undefined) {
console.warn("Uploading Error: " + err.stack);
callback("uploadFailed");
}
//everything ok, continue
else {
//save the path of the uploaded file
srcFile = files.file.path;
callback();
}
});
},
//ensure this is a file ending we know, else we change the file ending to .txt
//this allows us to accept source code files like .c or .java
function(callback) {
var fileEnding = path.extname(srcFile).toLowerCase()
, knownFileEndings = [".txt", ".doc", ".docx", ".pdf", ".odt", ".html", ".htm"]
, fileEndingKnown = (knownFileEndings.indexOf(fileEnding) > -1);
//if the file ending is known, continue as normal
if(fileEndingKnown) {
callback();
}
//we need to rename this file with a .txt ending
else {
var oldSrcFile = srcFile;
srcFile = path.join(path.dirname(srcFile),path.basename(srcFile, fileEnding)+".txt");
fs.rename(oldSrcFile, srcFile, callback);
}
},
//convert file to html
function(callback) {
var randNum = Math.floor(Math.random()*0xFFFFFFFF);
destFile = path.join(tmpDirectory, "eplite_import_" + randNum + ".htm");
if (abiword) {
abiword.convertFile(srcFile, destFile, "htm", function(err) {
//catch convert errors
if(err) {
console.warn("Converting Error:", err);
return callback("convertFailed");
} else {
callback();
}
});
} else {
// if no abiword only rename
fs.rename(srcFile, destFile, callback);
}
},
//get the pad object
function(callback) {
padManager.getPad(padId, function(err, _pad){
if(ERR(err, callback)) return;
pad = _pad;
callback();
});
},
//read the text
function(callback) {
fs.readFile(destFile, "utf8", function(err, _text){
if(ERR(err, callback)) return;
text = _text;
//node on windows has a delay on releasing of the file lock.
//We add a 100ms delay to work around this
if(os.type().indexOf("Windows") > -1){
setTimeout(function() {callback();}, 100);
} else {
callback();
}
});
},
//change text of the pad and broadcast the changeset
function(callback) {
var fileEnding = path.extname(srcFile).toLowerCase();
if (abiword || fileEnding == ".htm" || fileEnding == ".html") {
importHtml.setPadHTML(pad, text);
} else {
pad.setText(text);
}
padMessageHandler.updatePadClients(pad, callback);
},
//clean up temporary files
function(callback) {
//for node < 0.7 compatible
var fileExists = fs.exists || path.exists;
async.parallel([
function(callback){
fileExists (srcFile, function(exist) { (exist)? fs.unlink(srcFile, callback): callback(); });
},
function(callback){
fileExists (destFile, function(exist) { (exist)? fs.unlink(destFile, callback): callback(); });
}
], callback);
}
], function(err) {
var status = "ok";
//check for known errors and replace the status
if(err == "uploadFailed" || err == "convertFailed")
{
status = err;
err = null;
}
ERR(err);
//close the connection
res.send("<head><script type='text/javascript' src='/static/js/jquery.js'></script></head><script>$(window).load(function(){if ( (!$.browser.msie) && (!($.browser.mozilla && $.browser.version.indexOf(\"1.8.\") == 0)) ){document.domain = document.domain;}var impexp = window.parent.require('/pad_impexp').padimpexp.handleFrameCall('" + status + "');})</script>", 200);
});
}
|
