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package ij.io;
import ij.*;
import ij.gui.*;
import java.io.*;
import java.net.URL;
import java.net.*;
/** Intalls plugins (.jar and .class files) that have been dragged
and dropped on the ImageJ window, or opened using
File/Open or the open() macro function. */
class PluginInstaller {
boolean install(String path) {
boolean isURL = path.startsWith("http://");
byte[] data = null;
String name = path;
if (isURL) {
URL url = null;
try {
url = new URL(path);
} catch (Exception e) {
IJ.error(""+e);
return false;
}
int index = path.lastIndexOf("/");
if (index!=-1 && index<=path.length()-1)
name = path.substring(index+1);
data = download(url);
} else {
File f = new File(path);
name = f.getName();
data = download(f);
}
if (data==null) return false;
SaveDialog sd = new SaveDialog("Save Plugin...", Menus.getPlugInsPath(), name, null);
String name2 = sd.getFileName();
if (name2==null) return false;
String dir = sd.getDirectory();
if (!savePlugin(new File(dir,name), data))
return false;
Menus.updateImageJMenus();
return true;
}
boolean savePlugin(File f, byte[] data) {
try {
FileOutputStream out = new FileOutputStream(f);
out.write(data, 0, data.length);
out.close();
} catch (IOException e) {
IJ.error("Plugin Installer", ""+e);
return false;
}
return true;
}
byte[] download(URL url) {
byte[] data;
try {
URLConnection uc = url.openConnection();
int len = uc.getContentLength();
IJ.showStatus("Downloading "+url.getFile());
InputStream in = uc.getInputStream();
data = new byte[len];
int n = 0;
while (n < len) {
int count = in.read(data, n, len - n);
if (count<0)
throw new EOFException();
n += count;
IJ.showProgress(n, len);
}
in.close();
} catch (IOException e) {
return null;
}
return data;
}
byte[] download(File f) {
if (!f.exists()) {
IJ.error("Plugin Installer", "File not found: "+f);
return null;
}
byte[] data = null;
try {
int len = (int)f.length();
InputStream in = new BufferedInputStream(new FileInputStream(f));
DataInputStream dis = new DataInputStream(in);
data = new byte[len];
dis.readFully(data);
dis.close();
}
catch (Exception e) {
IJ.error("Plugin Installer", ""+e);
data = null;
}
return data;
}
}
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