+ initial

magnetize.cpp

@@ -0,0 +1,139 @@
+#include "magnetize.h"
+
+MainWindow::MainWindow()
+{
+ filename=new QLineEdit;
+ filename->setMinimumWidth(400);
+ filenamelabel=new QLabel("File name:");
+ magnet=new QLineEdit;
+ magnet->setReadOnly(true);
+ magnet->setMinimumWidth(500);
+ magnetlabel=new QLabel("Magnet link:");
+ quitButton=new QPushButton("Quit");
+ openButton=new QPushButton("Open");
+ genButton=new QPushButton("Generate");
+ copyButton=new QPushButton("Copy");
+ copyButton->setEnabled(false);
+ copyButton->setMinimumHeight(40);
+ connect(quitButton,SIGNAL(clicked()),this,SLOT(quit()));
+ connect(openButton,SIGNAL(clicked()),this,SLOT(openfile()));
+ connect(genButton,SIGNAL(clicked()),this,SLOT(generate()));
+ connect(copyButton,SIGNAL(clicked()),this,SLOT(copy()));
+ QVBoxLayout* mainlayout=new QVBoxLayout;
+ QHBoxLayout* filenamelayout=new QHBoxLayout;
+ QHBoxLayout* magnetlayout=new QHBoxLayout;
+ 
+ filenamelayout->addWidget(filenamelabel);
+ filenamelayout->addWidget(filename);
+ filenamelayout->addWidget(openButton);
+ magnetlayout->addWidget(magnetlabel);
+ magnetlayout->addWidget(magnet);
+ mainlayout->addLayout(filenamelayout);
+ mainlayout->addWidget(genButton);
+ mainlayout->addLayout(magnetlayout);
+ mainlayout->addWidget(copyButton);
+ mainlayout->addWidget(quitButton);
+ setLayout(mainlayout);
+ setWindowTitle("Generate magnet link");
+}
+
+void MainWindow::quit()
+{
+  qApp->quit();
+}
+
+void MainWindow::openfile()
+{
+  QString fname=QFileDialog::getOpenFileName(this,"Open file","","Torrent files (*.torrent)");
+  setmagnet(fname);
+}
+
+void MainWindow::generate()
+{
+  QString fname=filename->text();
+  setmagnet(fname);
+}
+
+void MainWindow::copy()
+{
+  QString link=magnet->text();
+  qApp->clipboard()->setText(link);
+}
+
+void MainWindow::setmagnet(const QString& fname)
+{
+ if(fname=="")
+ {
+   magnet->setText("");
+   copyButton->setEnabled(false);
+   return;
+ }
+ QString hash;
+ int ret;
+ bool priv;
+ filename->setText(fname);
+ ret=infohash(fname.toLocal8Bit().data(),hash,priv);
+ if(ret)
+ {
+   magnet->setText("Error!");
+   copyButton->setEnabled(false); 
+ }
+ else
+ {
+   magnet->setText("magnet:?xt=urn:btih:"+hash);
+   if(priv) copyButton->setEnabled(false);
+   else copyButton->setEnabled(true);
+ }
+}
+
+void Byte2Hex(unsigned char ch, char* out)
+{
+ static const char cnv[]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
+ out[0]=cnv[(ch&(15<<4))>>4];
+ out[1]=cnv[ch&15];
+}
+
+int infohash(const char* file, QString& Qinfohash, bool& priv)
+{
+ int fd;
+ struct stat st;
+ off_t size;
+ void* map;
+ libtorrent::error_code ec;
+ char s[3];
+ Qinfohash="";
+ libtorrent::sha1_hash infohash;
+ unsigned char* i;
+    
+ fd=open(file,O_RDONLY);
+ if(fd==-1) return 1;
+ if(fstat(fd,&st)) {close(fd); return 1;}
+ size=st.st_size;
+ map=mmap(0,size,PROT_READ,MAP_SHARED,fd,0);
+ if(map==(void*)-1) {close(fd); return 1;}
+ 
+ libtorrent::torrent_info tinfo((const char*)map,size,ec);
+ if(ec) {munmap(map,size); close(fd); return 1;}
+ infohash=tinfo.info_hash();
+ priv=tinfo.priv();
+ s[2]=0;
+ for(i=infohash.begin();i!=infohash.end();i++)
+ {
+   Byte2Hex(*i,s);
+   Qinfohash+=s;
+ }
+
+ munmap(map,size);
+ close(fd);
+ return 0;
+}
+
+int main(int argc, char** argv)
+{
+ QApplication app(argc, argv);
+ 
+ MainWindow w;
+ w.show();
+ 
+ return app.exec();
+}

magnetize.h

@@ -0,0 +1,34 @@
+#include <QtGui>
+//#define BOOST_FILESYSTEM_NARROW_ONLY
+#include <libtorrent/torrent_info.hpp>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <iostream>
+
+class MainWindow:public QWidget
+{
+ Q_OBJECT
+ 
+ public:
+ MainWindow();
+private slots:
+  void quit();
+  void openfile();
+  void copy();
+  void generate();
+private:
+  void setmagnet(const QString& fname);
+  QLineEdit *filename;
+  QPushButton *quitButton;
+  QLabel *filenamelabel;
+  QPushButton *openButton;
+  QLineEdit *magnet;
+  QLabel* magnetlabel;
+  QPushButton* genButton;
+  QPushButton* copyButton;
+};
+
+int infohash(const char* file, QString& Qinfohash, bool& priv);

magnetize.pro

@@ -0,0 +1,5 @@
+HEADERS = magnetize.h
+SOURCES = magnetize.cpp
+LIBS += `pkg-config --libs libtorrent-rasterbar` -lboost_system-mt
+QMAKE_CFLAGS += `pkg-config --cflags libtorrent-rasterbar`
+QMAKE_CXXFLAGS += `pkg-config --cflags libtorrent-rasterbar`