From 6933653f2eed98e2dd29f139a62adc90b3fadc9b Mon Sep 17 00:00:00 2001
From: Bartosz Szatkowski <bulislaw@linux.com>
Date: Mon, 4 Oct 2010 11:36:31 +0200
Subject: [PATCH] Added library based archive extracting

---
 src/plugins/xdxf/XdxfDialog.cpp         |    3 +-
 src/plugins/xdxf/XdxfDictDownloader.cpp |   59 ++++++++++++++++++++++++++++++-
 src/plugins/xdxf/XdxfDictDownloader.h   |    3 ++
 src/plugins/xdxf/xdxf.pro               |    2 ++
 4 files changed, 65 insertions(+), 2 deletions(-)

diff --git a/src/plugins/xdxf/XdxfDialog.cpp b/src/plugins/xdxf/XdxfDialog.cpp
index e660d8b..1972f03 100644
--- a/src/plugins/xdxf/XdxfDialog.cpp
+++ b/src/plugins/xdxf/XdxfDialog.cpp
@@ -243,7 +243,8 @@ void XdxfDialog::selectFile() {
 }
 
 void XdxfDialog::downloadFile() {
-    XdxfPlugin::dictDownloader.download(this);
+   qDebug()<<"a";
+   XdxfPlugin::dictDownloader.download(this);
 }
 
 void XdxfDialog::saveSettings() {
diff --git a/src/plugins/xdxf/XdxfDictDownloader.cpp b/src/plugins/xdxf/XdxfDictDownloader.cpp
index 2b62ff6..677be7f 100644
--- a/src/plugins/xdxf/XdxfDictDownloader.cpp
+++ b/src/plugins/xdxf/XdxfDictDownloader.cpp
@@ -28,6 +28,14 @@
 #include "XdxfDictDownloadProgressDialog.h"
 #include <QDebug>
 
+#include <bzlib.h>
+#include <libtar.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+typedef void BZFILE;
+
+
 
 XdxfDictDownloader::XdxfDictDownloader(QObject *parent) :
     QObject(parent) {
@@ -91,6 +99,7 @@ void XdxfDictDownloader::processFinished(int exitcode) {
         process->start(commands[currentCommand]);
     }
     else {
+        qDebug() << "EXTRACT" << extract("/tmp/" + _fileName);
         downloadComplete();
     }
 }
@@ -106,6 +115,7 @@ void XdxfDictDownloader::downloadComplete() {
     QFile dictFile("/tmp/mdict/" + dictDirName + "/dict.xdxf");
     dictFile.copy(QDir::homePath() + "/.mdictionary/" + dictDirName + ".xdxf");
     QFile::remove("/tmp/" + _fileName);
+    QFile::remove("/tmp/" + _fileName.replace(QRegExp(".bz2$"), ""));
 
     _downloadedFile = QDir::homePath() + "/.mdictionary/" + dictDirName + ".xdxf";
 
@@ -175,8 +185,55 @@ void XdxfDictDownloader::dictListReceived(QNetworkReply *reply) {
         // page and js scripts and thats all
         // Maybe calling wget is not pretty one but its working!
         commands.push_back("wget --quiet -P /tmp/ " + url);
-        commands.push_back(QString("tar -xjvf /tmp/") + _fileName + QString(" -C /tmp/mdict"));
+
+        //commands.push_back(QString("tar -xjvf /tmp/") + _fileName + QString(" -C /tmp/mdict"));
 
         process->start(commands[0]);
     }
 }
+
+bool XdxfDictDownloader::extract(QString file) {
+    // Extracting bz2
+    FILE * archive = fopen(file.toStdString().c_str(), "rb");
+    if (archive == 0)
+        return false;
+    int err;
+    BZFILE * afterbzFile = BZ2_bzReadOpen(&err, archive, 0, 0, 0, 0);
+    if(err != BZ_OK) {
+        BZ2_bzReadClose(&err, afterbzFile);
+        return false;
+    }
+
+    FILE * tarfile = fopen(file.replace(QRegExp(".bz2$"), "").
+            toStdString().c_str(), "w");
+
+    int bufflen = 100;
+    char buff[bufflen];
+    while(err == BZ_OK) {
+        int len = BZ2_bzRead(&err, afterbzFile, buff, bufflen);
+        if(fwrite(buff, 1, len, tarfile) != len)
+            return false;
+    }
+    BZ2_bzReadClose(&err, afterbzFile);
+    fclose(tarfile);
+    fclose(archive);
+
+    // Extracting tar
+    TAR *t;
+    char * tarfname = new char[file.replace(QRegExp(".bz2%"), "").size()+1];
+    strcpy(tarfname, file.replace(QRegExp(".bz2%"), "").toStdString().c_str());
+
+    err = tar_open(&t, tarfname, 0, O_RDONLY, 0, 0);
+    if(err == -1)
+        return false;
+
+    err = tar_extract_all(t, "/tmp/mdict/");
+    if(err == -1) {
+        return false;
+    }
+    tar_close(t);
+
+    return true;
+}
+
+
diff --git a/src/plugins/xdxf/XdxfDictDownloader.h b/src/plugins/xdxf/XdxfDictDownloader.h
index 3a74b20..5b7aec9 100644
--- a/src/plugins/xdxf/XdxfDictDownloader.h
+++ b/src/plugins/xdxf/XdxfDictDownloader.h
@@ -35,6 +35,8 @@
 #include <DownloadDict.h>
 #include "XdxfDictDownloadProgressDialog.h"
 #include "../../include/Notify.h"
+#include <string.h>
+#include <errno.h>
 
 /** XdxfDictDownloader is responsible for getting dict list from XDXF website
     and other actions necessary to download and add dictionary
@@ -85,6 +87,7 @@ private:
     bool downloadError;
     bool aborted;
     QNetworkAccessManager *manager;
+    bool extract(QString file);
 };
 
 #endif // XDXFDICTDOWNLOADER_H
diff --git a/src/plugins/xdxf/xdxf.pro b/src/plugins/xdxf/xdxf.pro
index 982fd5b..be2f482 100644
--- a/src/plugins/xdxf/xdxf.pro
+++ b/src/plugins/xdxf/xdxf.pro
@@ -6,6 +6,8 @@ QT = core \
     sql \
     network
 
+LIBS += -ltar -lbz2
+
 maemo5:QT += maemo5
 SOURCES += xdxfplugin.cpp \
     TranslationXdxf.cpp \
-- 
1.7.9.5