Examples with FileHeader net.lingala.zip4j.model.FileHeader used on opensource projects

Example 1 with FileHeader

use of net.lingala.zip4j.model.FileHeader in project v7files by thiloplanz.

the class ZipFile method extractFile.

/**
	 * find the data indicated by the ContentPointer, treats it as a zip
	 * archive, extracts the named file inside the archive, stores a reference
	 * to it in the ContentStorage and returns a ContentPointer to it.
	 * 
	 * @throws FileNotFoundException
	 *             if the archive exists, but does not contain the named file
	 * @throws IllegalArgumentException
	 *             if the ContentPointer does not refer to a zip archive
	 * 
	 */
public static final ContentPointer extractFile(ContentStorage storage, ContentPointer zipFile, String fileName) throws IOException {
    Content zip = storage.getContent(zipFile);
    if (zip == null)
        throw new IllegalArgumentException("invalid ContentPointer " + zipFile);
    File tmp = File.createTempFile("v7files_zipfile_extractfile_", ".zip");
    try {
        OutputStream f = new FileOutputStream(tmp);
        IOUtils.copy(zip.getInputStream(), f);
        f.close();
        // open up the zip file
        HeaderReader r = new HeaderReader(new RandomAccessFile(tmp, "r"));
        ZipModel model = r.readAllHeaders();
        model.setZipFile(tmp.getAbsolutePath());
        List<?> fhs = model.getCentralDirectory().getFileHeaders();
        for (Object _fh : fhs) {
            FileHeader fh = (FileHeader) _fh;
            if (fileName.equals(fh.getFileName())) {
                UnzipEngine en = new UnzipEngine(model, fh);
                // this will read the local file header
                en.getInputStream();
                LocalFileHeader lh = en.getLocalFileHeader();
                return store(storage, zipFile.serialize(), fh, lh);
            }
        }
    } catch (ZipException e) {
        throw new IllegalArgumentException("ContentPointer does not refer to a zip file: " + zipFile, e);
    } finally {
        tmp.delete();
    }
    throw new FileNotFoundException("ContentPointer does not contain " + fileName + ": " + zipFile);
}

Example 2 with FileHeader

use of net.lingala.zip4j.model.FileHeader in project v7files by thiloplanz.

the class ZipFile method index.

/**
	 * index all individual files found in a zip archive already in storage
	 * 
	 * @throws IOException
	 */
public static final void index(ContentStorage storage, ContentPointer zipFile) throws IOException {
    Content zip = storage.getContent(zipFile);
    if (zip == null)
        throw new IllegalArgumentException("invalid ContentPointer " + zipFile);
    File tmp = File.createTempFile("v7files_zipfile_extractfile_", ".zip");
    try {
        OutputStream f = new FileOutputStream(tmp);
        IOUtils.copy(zip.getInputStream(), f);
        f.close();
        // open up the zip file
        HeaderReader r = new HeaderReader(new RandomAccessFile(tmp, "r"));
        ZipModel model = r.readAllHeaders();
        model.setZipFile(tmp.getAbsolutePath());
        Map<String, Object> map = zipFile.serialize();
        List<?> fhs = model.getCentralDirectory().getFileHeaders();
        for (Object _fh : fhs) {
            FileHeader fh = (FileHeader) _fh;
            UnzipEngine en = new UnzipEngine(model, fh);
            // this will read the local file header
            en.getInputStream();
            LocalFileHeader lh = en.getLocalFileHeader();
            store(storage, map, fh, lh);
        }
    } catch (ZipException e) {
        throw new IllegalArgumentException("ContentPointer does not refer to a zip file: " + zipFile, e);
    } finally {
        tmp.delete();
    }
}

Example 3 with FileHeader

use of net.lingala.zip4j.model.FileHeader in project tdi-studio-se by Talend.

the class Unzip method doUnzipWithAes.

// zip4j compress&decryption impl
public void doUnzipWithAes() throws Exception {
    File file = new File(sourceZip);
    if (password == null || "".equals(password)) {
        // To make sure the System.out.println message
        Thread.sleep(1000);
        // come before
        throw new RuntimeException("Please enter the password and try again..");
    }
    ZipFile zipFile = new ZipFile(sourceZip);
    if (checkArchive) {
        if (!zipFile.isValidZipFile()) {
            throw new RuntimeException("The file " + sourceZip + " is corrupted, process terminated...");
        }
    }
    if (zipFile.isEncrypted()) {
        zipFile.setPassword(password);
    }
    List fileHeaderList = zipFile.getFileHeaders();
    if (fileHeaderList == null) {
        return;
    }
    for (int i = 0; i < fileHeaderList.size(); i++) {
        FileHeader fileHeader = (FileHeader) fileHeaderList.get(i);
        String filename = fileHeader.getFileName();
        if (verbose) {
            System.out.println("Source file  : " + filename);
        }
        if (!extractPath) {
            filename = filename.replaceAll("\\\\", "/");
            filename = filename.substring(filename.lastIndexOf('/') + 1);
        }
        zipFile.extractFile(fileHeader, targetDir, null, filename);
    }
}