1 /*******************************************************************************
3 This file is part of mDictionary.
5 mDictionary is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 mDictionary is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with mDictionary. If not, see <http://www.gnu.org/licenses/>.
18 Copyright 2010 Comarch S.A.
20 *******************************************************************************/
22 \file XdxfDictDownloader.cpp
23 \brief XdxfDictDownloader is responsible for getting dict list from XDXF website
24 and other actions necessary to download and add dictionary
26 \author Mateusz Półrola <mateusz.polrola@comarch.com>
29 #include "XdxfDictDownloader.h"
30 #include "XdxfDictDownloadProgressDialog.h"
45 XdxfDictDownloader::XdxfDictDownloader(QObject *parent) :
49 manager = new QNetworkAccessManager(this);
51 connect(manager, SIGNAL(finished(QNetworkReply*)),
52 this, SLOT(dictListReceived(QNetworkReply*)));
53 connect(&http, SIGNAL(finished()),
54 this, SLOT(processFinished()));
55 connect(&http, SIGNAL(error(QString)),
56 this, SLOT(downloadingError(QString)));
57 connect(&http, SIGNAL(progress(qint64,qint64)),
58 this, SLOT(updateDownloadProgress(qint64,qint64)));
62 void XdxfDictDownloader::download(QWidget *parent) {
63 parentDialog = parent;
66 manager->get(QNetworkRequest(QUrl("http://xdxf.revdanica.com/down/")));
68 progressDialog = new XdxfDictDownloadProgressDialog(parent);
70 connect(progressDialog, SIGNAL(cancelDownloading()),
71 this, SLOT(breakDownloading()));
72 connect(this, SIGNAL(downloadProgress(float)),
73 progressDialog, SLOT(updateProgress(float)));
75 progressDialog->setText(tr("Downloading dictionaries list"));
76 progressDialog->show();
80 QString XdxfDictDownloader::downloadedFile() {
81 return _downloadedFile;
85 void XdxfDictDownloader::updateDownloadProgress(qint64 downloaded,
87 Q_EMIT downloadProgress(float(downloaded) / float(total));
91 void XdxfDictDownloader::downloadingError(QString error) {
93 Q_EMIT notify(Notify::Error, error);
97 void XdxfDictDownloader::breakDownloading() {
98 //if user cancel downloading we kill all running processes, hide progress dialog and set flag that user cancel downloading.
102 if(progressDialog && progressDialog->isVisible()) {
103 progressDialog->accept();
108 void XdxfDictDownloader::processFinished() {
109 //first check if user cancel downloading
112 if(!extract("/tmp/" + _fileName)) {
113 Q_EMIT notify(Notify::Error,
114 "Error while extracting dictionary archive");
121 void XdxfDictDownloader::downloadComplete() {
123 // Downloaded tar file name is different than extracted folder so we need
124 // some clean directory to identify extracted files
125 QDir dir("/tmp/mdict");
126 QString dictDirName = dir.entryList().at(2);
128 // Dict is in /tmp/mdict/<extracted directory>/dict.xdxf
129 QFile dictFile("/tmp/mdict/" + dictDirName + "/dict.xdxf");
130 dictFile.copy(QDir::homePath() + "/.mdictionary/" + dictDirName + ".xdxf");
131 QFile::remove("/tmp/" + _fileName);
132 QFile::remove("/tmp/" + _fileName.replace(QRegExp(".bz2$"), ""));
134 _downloadedFile = QDir::homePath() + "/.mdictionary/" + dictDirName + ".xdxf";
136 progressDialog->accept();
137 delete progressDialog;
140 emit fileDownloaded(_downloadedFile);
144 void XdxfDictDownloader::dictListReceived(QNetworkReply *reply) {
145 progressDialog->accept();
148 if(reply->error() != QNetworkReply::NoError) {
149 Q_EMIT notify(Notify::Error, reply->errorString());
153 QString page(QString::fromUtf8(reply->readAll()));
155 // You can look at http://xdxf.revdanica.com/down/, we need to get table
156 // with dictionaries entries following regexp match its begining
157 QRegExp regOuter("<td>Icon</td><td>Name</td><td>Archive filename</td><td>Archive file size</td><td>Dict file size</td><td>Number of articles</td><td>From</td><td>To</td><td>Submitted by</td><td>Submition date</td></tr>(.*)</table>");
158 regOuter.setMinimal(true);
159 if(!regOuter.indexIn(page))
162 // Cutting each entry and creating coresponded DownloadDict object
163 page = regOuter.capturedTexts().at(1);
164 QRegExp regInner("<tr>.*</tr>");
165 regInner.setMinimal(true);
168 while ((pos = regInner.indexIn(page, pos)) != -1) {
169 DownloadDict temp = DownloadDict(regInner.cap(0));
170 if(!temp.fromLang().isEmpty())
172 pos += regInner.matchedLength();
175 XdxfDictSelectDialog selectDialog(dicts, parentDialog);
177 if(selectDialog.exec()==QDialog::Accepted) {
179 progressDialog->setText(tr("Downloading dictionary"));
180 progressDialog->show();
182 QString url = selectDialog.link();
183 _fileName = url.split('/').last();
186 clean.start("rm -rf /tmp/mdict");
187 clean.waitForFinished(-1);
188 clean.start("mkdir /tmp/mdict");
189 clean.waitForFinished(-1);
191 http.download(QUrl(url), "/tmp/" + _fileName);
195 bool XdxfDictDownloader::extract(QString file) {
197 FILE * archive = fopen(file.toStdString().c_str(), "rb");
201 BZFILE * afterbzFile = BZ2_bzReadOpen(&err, archive, 0, 0, 0, 0);
203 BZ2_bzReadClose(&err, afterbzFile);
207 FILE * tarfile = fopen(file.replace(QRegExp(".bz2$"), "").
208 toStdString().c_str(), "w");
212 while(err == BZ_OK) {
213 unsigned int len = BZ2_bzRead(&err, afterbzFile, buff, bufflen);
214 if(fwrite(buff, 1, len, tarfile) != len)
217 BZ2_bzReadClose(&err, afterbzFile);
224 char * tarfname = new char[file.replace(QRegExp(".bz2%"), "").size()+1];
225 strcpy(tarfname, file.replace(QRegExp(".bz2%"), "").toStdString().c_str());
227 err = tar_open(&t, tarfname, 0, O_RDONLY, 0, 0);
231 char text[]={"/tmp/mdict/"};
232 err = tar_extract_all(t,text);
239 tar.start("tar -xvf " + file.replace(QRegExp(".bz2%"), "") + " -C /tmp/mdict");
240 tar.waitForFinished(-1);