com.krikelin.spotifysource.AppInstaller.java Source code

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Here is the source code for com.krikelin.spotifysource.AppInstaller.java

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/*
* Copyright (C) 2011 Alexander Forselius
*
* 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.
*/
package com.krikelin.spotifysource;

import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.jar.JarEntry;

import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.apache.commons.io.IOUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class AppInstaller {
    private URL url;

    public AppInstaller(URL url) {
        this.url = url;
    }

    public AppInstaller(File fil) {
        this.app_jar = fil;
    }

    protected void copyFile(String src, String dest) throws IOException {
        File inputFile = new File(src);
        File outputFile = new File(dest);

        FileReader in = new FileReader(inputFile);
        FileWriter out = new FileWriter(outputFile);
        int c;

        while ((c = in.read()) != -1)
            out.write(c);

        in.close();
        out.close();
    }

    protected void extractJar(String destDir, String jarFile) throws IOException {
        File destination = new File(destDir);
        java.util.jar.JarFile jar = new java.util.jar.JarFile(jarFile);
        java.util.Enumeration<JarEntry> enu = jar.entries();
        while (enu.hasMoreElements()) {
            try {
                java.util.jar.JarEntry file = (java.util.jar.JarEntry) enu.nextElement();
                java.io.File f = new java.io.File(destDir + java.io.File.separator + file.getName());
                if (file.isDirectory()) { // if its a directory, create it
                    f.mkdir();
                    continue;
                }
                java.io.InputStream is = jar.getInputStream(file); // get the input stream
                if (!(destination.exists())) {
                    destination.createNewFile();
                }

                java.io.FileOutputStream fos = new java.io.FileOutputStream(f);
                while (is.available() > 0) { // write contents of 'is' to 'fos'
                    fos.write(is.read());
                }
                fos.close();
                is.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    protected void addPackage(String file, String context) throws IOException {
        // Add the package to the file

        BufferedWriter bw = new BufferedWriter(new FileWriter(SPContainer.EXTENSION_DIR + "\\" + context, true));
        bw.write("\n" + file);
        bw.close();
    }

    public static final int size = 1024;

    protected File downloadJar(URL file) throws IOException {
        // TODO FIx this later!!!!

        // Download the Jar file {

        InputStream in = file.openStream();
        File c = new File(SPContainer.EXTENSION_DIR + "\\jar\\"
                + file.getFile().split("/")[file.getFile().split("/").length - 1]);
        c.createNewFile();
        FileOutputStream fos = new FileOutputStream(c);

        this.app_jar = c;
        return c;
        // }

    }

    public static String xmlns = "http://spotiapps/";
    public static final String tmp_dir = "C:\\temp\\";
    private File app_jar;

    public void install() throws IOException, SAXException, ParserConfigurationException {
        if (url != null) {
            downloadJar(url);
        }
        if (this.app_jar != null) {
            installJar();
        }
    }

    public void installJar() throws IOException, SAXException, ParserConfigurationException {

        java.util.jar.JarFile jar = new java.util.jar.JarFile(app_jar);
        // Get manifest
        java.util.Enumeration<JarEntry> enu = jar.entries();
        while (enu.hasMoreElements()) {
            JarEntry elm = enu.nextElement();
            if (elm.getName().equals("SpotifyAppManifest.xml")) {
                DataInputStream dis = new DataInputStream(jar.getInputStream(elm));
                Document d = DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(dis);
                dis.close();
                // Get package name
                String package_name = d.getDocumentElement().getAttribute("package");

                addPackage(package_name, "packages");
                // Get all activities
                NodeList activities = d.getElementsByTagName("activity");
                for (int i = 0; i < activities.getLength(); i++) {
                    Element activity = (Element) activities.item(i);
                    String name = activity.getAttribute("name"); // Get the name
                    // Append the previous name if it starts with .
                    if (name.startsWith(".")) {
                        name = name.replace(".", "");

                    }
                    if (!name.startsWith(package_name)) {
                        name = package_name + "." + name;

                    }
                    //addPackage(name,"activities");
                    NodeList intentFilters = activity.getElementsByTagName("intent-filter");
                    for (int j = 0; j < intentFilters.getLength(); j++) {
                        NodeList actions = ((Element) intentFilters.item(0)).getElementsByTagName("action");
                        for (int k = 0; k < actions.getLength(); k++) {
                            String action_name = ((Element) actions.item(k)).getAttribute("name");
                            addPackage(name, "\\activities\\" + action_name);
                        }

                    }
                }
                copyFile(app_jar.getAbsolutePath(), SPContainer.EXTENSION_DIR + "\\jar\\" + package_name + ".jar");
                // Runtime.getRuntime().exec("copy \""+app_jar+"\" \""+SPContainer.EXTENSION_DIR+"\\jar\\"+package_name+".jar\"");

            }
        }

    }

    public URL getUrl() {
        return url;
    }

    public void setUrl(URL url) {
        this.url = url;
    }
}