package de.mas.jnus.lib.implementations; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.concurrent.SynchronousQueue; import com.sun.istack.internal.NotNull; import de.mas.jnus.lib.NUSTitle; import de.mas.jnus.lib.Settings; import de.mas.jnus.lib.entities.content.Content; import de.mas.jnus.lib.utils.FileUtils; import de.mas.jnus.lib.utils.Utils; import lombok.Getter; import lombok.Setter; import lombok.extern.java.Log; @Log /** * Service Methods for loading NUS/Content data from * different sources * @author Maschell * */ public abstract class NUSDataProvider { @Getter @Setter private NUSTitle NUSTitle = null; public NUSDataProvider () { } /** * Saves the given content encrypted with his .h3 file in the given directory. * The Target directory will be created if it's missing. * If the content is not hashed, no .h3 will be saved * @param content Content that should be saved * @param outputFolder Target directory where the files will be stored in. * @throws IOException */ public void saveEncryptedContentWithH3Hash(@NotNull Content content,@NotNull String outputFolder) throws IOException { saveContentH3Hash(content, outputFolder); saveEncryptedContent(content, outputFolder); } /** * Saves the .h3 file of the given content into the given directory. * The Target directory will be created if it's missing. * If the content is not hashed, no .h3 will be saved * @param content The content of which the h3 hashes should be saved * @param outputFolder * @throws IOException */ public void saveContentH3Hash(@NotNull Content content,@NotNull String outputFolder) throws IOException { if(!content.isHashed()){ return; } byte[] hash = getContentH3Hash(content); if(hash == null){ return; } String h3Filename = String.format("%08X%s", content.getID(),Settings.H3_EXTENTION); File output = new File(outputFolder + File.separator + h3Filename); if(output.exists() && output.length() == hash.length){ System.out.println(h3Filename + " already exists"); return; } System.out.println("Saving " + h3Filename +" "); FileUtils.saveByteArrayToFile(output, hash); } /** * Saves the given content encrypted in the given directory. * The Target directory will be created if it's missing. * If the content is not encrypted at all, it will be just saved anyway. * @param content Content that should be saved * @param outputFolder Target directory where the files will be stored in. * @throws IOException */ public void saveEncryptedContent(@NotNull Content content,@NotNull String outputFolder) throws IOException { Utils.createDir(outputFolder); InputStream inputStream = getInputStreamFromContent(content, 0); if(inputStream == null){ log.info("Couldn't save encrypted content. Input stream was null"); return; } File output = new File(outputFolder + File.separator + content.getFilename()); if(output.exists()){ if(output.length() == content.getEncryptedFileSize()){ log.info("Encrypted content alreadys exists, skipped"); return; }else{ log.info("Encrypted content alreadys exists, but the length is not as expected. Saving it again"); } } FileUtils.saveInputStreamToFile(output,inputStream,content.getEncryptedFileSize()); } /** * * @param content * @param offset * @return * @throws IOException */ public abstract InputStream getInputStreamFromContent(Content content,long offset) throws IOException ; public abstract byte[] getContentH3Hash(Content content) throws IOException; public abstract byte[] getRawTMD() throws IOException; public abstract byte[] getRawTicket() throws IOException; public abstract byte[] getRawCert() throws IOException; public abstract void cleanup() throws IOException; }