package art.servers.gost.access.utils;
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import art.library.interop.serialization.Serialization;
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import art.library.model.devices.gost.access.types.AccessEnforcement_Detection;
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import art.library.model.devices.gost.access.types.AccessEnforcement_Detection_Image;
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import art.library.utils.licence.Licence;
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import java.io.BufferedOutputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.File;
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import java.nio.file.Files;
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import java.security.MessageDigest;
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import java.text.SimpleDateFormat;
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import java.util.List;
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import java.util.zip.CRC32;
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import javax.xml.bind.DatatypeConverter;
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import net.lingala.zip4j.io.outputstream.ZipOutputStream;
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import net.lingala.zip4j.model.ZipParameters;
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import net.lingala.zip4j.model.enums.AesKeyStrength;
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import net.lingala.zip4j.model.enums.CompressionLevel;
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import net.lingala.zip4j.model.enums.CompressionMethod;
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import net.lingala.zip4j.model.enums.EncryptionMethod;
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public class ZIP
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{
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public static void zip(AccessEnforcement_Detection detection, String password, String storageFolder) throws Exception
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{
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ByteArrayOutputStream bos = null;
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ZipOutputStream zos = null;
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try
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{
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SimpleDateFormat formato1 = new SimpleDateFormat("yyyy/MM/dd");
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SimpleDateFormat formato2 = new SimpleDateFormat("yyyyMMddHHmmssSSS");
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CRC32 crc = new CRC32();
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bos = new ByteArrayOutputStream();
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zos = new ZipOutputStream(new BufferedOutputStream(bos), Licence.decrypt(password).toCharArray());
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ZipParameters zipParameters = new ZipParameters();
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zipParameters.setCompressionMethod(CompressionMethod.DEFLATE);
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zipParameters.setCompressionLevel(CompressionLevel.FAST);
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zipParameters.setEncryptFiles(true);
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zipParameters.setEncryptionMethod(EncryptionMethod.AES);
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zipParameters.setAesKeyStrength(AesKeyStrength.KEY_STRENGTH_256);
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List<AccessEnforcement_Detection_Image> images = detection.images;
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// Remove images, we don't want to serialize
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detection.images = null;
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// Detection zip entry
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{
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byte[] data = Serialization.toPrettyString(detection).getBytes();
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zipParameters.setFileNameInZip("detection.json");
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crc.reset(); crc.update(data);
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zipParameters.setEntryCRC(crc.getValue());
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zos.putNextEntry(zipParameters);
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zos.write(data);
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zos.closeEntry();
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}
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// Images
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if (images!= null)
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{
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for (AccessEnforcement_Detection_Image image : images)
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{
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// Write zip entry
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{
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zipParameters.setFileNameInZip(image.name + "." + image.format);
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crc.reset(); crc.update(image.data);
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zos.putNextEntry(zipParameters);
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zipParameters.setEntryCRC(crc.getValue());
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zos.write(image.data);
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zos.closeEntry();
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}
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}
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}
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// Once finished, adding images again to detection
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detection.images = images;
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bos.flush(); bos.close();
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zos.flush(); zos.close();
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byte[] zipdata = bos.toByteArray();
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// Save zip
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{
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File destination = new File(storageFolder + "/" + formato1.format(detection.timestamp) + "/" + formato2.format(detection.timestamp) + ".zip");
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destination.getParentFile().mkdirs();
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Files.write(destination.toPath(), zipdata);
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}
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// Save sha
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{
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File destination = new File(storageFolder + "/" + formato1.format(detection.timestamp) + "/" + formato2.format(detection.timestamp) + ".sha");
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MessageDigest messageDigest = MessageDigest.getInstance("SHA-512");
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messageDigest.reset();
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messageDigest.update(zipdata);
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String sha512 = DatatypeConverter.printHexBinary(messageDigest.digest());
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Files.write(destination.toPath(), sha512.getBytes());
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}
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}
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finally
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{
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try { bos.close(); } catch (Exception e){};
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try { zos.close(); } catch (Exception e){};
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}
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}
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}
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