Quelle ReadZip.java Sprache: JAVA

/*
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/

/* @test
   @bug 4241361 4842702 4985614 6646605 5032358 6923692 6233323 8144977 8186464
   @summary Make sure we can read a zip file.
   @key randomness
   @modules jdk.zipfs
*/

import java.io.*;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.NoSuchFileException;
import java.nio.file.StandardCopyOption;
import java.nio.file.StandardOpenOption;
import java.util.List;
import java.util.Map;
import java.util.zip.*;

import static java.nio.charset.StandardCharsets.US_ASCII;

public class ReadZip {
    private static void unreached (Object o)
        throws Exception
    {
        // Should never get here
        throw new Exception ("Expected exception was not thrown");
    }

    public static void main(String args[]) throws Exception {
        try (ZipFile zf = new ZipFile(new File(System.getProperty("test.src", "."),
                                               "input.zip"))) {
            // Make sure we throw NPE on null objects
            try { unreached (zf.getEntry(null)); }
            catch (NullPointerException e) {}

            try { unreached (zf.getInputStream(null)); }
            catch (NullPointerException e) {}

            ZipEntry ze = zf.getEntry("ReadZip.java");
            if (ze == null) {
                throw new Exception("cannot read from zip file");
            }
        }

        // Make sure we can read the zip file that has some garbage
        // bytes padded at the end.
        File newZip = new File(System.getProperty("test.dir", "."), "input2.zip");
        Files.copy(Paths.get(System.getProperty("test.src", ""), "input.zip"),
                   newZip.toPath(), StandardCopyOption.REPLACE_EXISTING);

        newZip.setWritable(true);

        // pad some bytes
        try (OutputStream os = Files.newOutputStream(newZip.toPath(),
                                                     StandardOpenOption.APPEND)) {
            os.write(1); os.write(3); os.write(5); os.write(7);
        }

        try (ZipFile zf = new ZipFile(newZip)) {
            ZipEntry ze = zf.getEntry("ReadZip.java");
            if (ze == null) {
                throw new Exception("cannot read from zip file");
            }
        } finally {
            newZip.delete();
        }

        // Read zip file comment
        try {
            try (FileOutputStream fos = new FileOutputStream(newZip);
                 ZipOutputStream zos = new ZipOutputStream(fos))
            {
                ZipEntry ze = new ZipEntry("ZipEntry");
                zos.putNextEntry(ze);
                zos.write(1); zos.write(2); zos.write(3); zos.write(4);
                zos.closeEntry();
                zos.setComment("This is the comment for testing");
            }

            try (ZipFile zf = new ZipFile(newZip)) {
                ZipEntry ze = zf.getEntry("ZipEntry");
                if (ze == null)
                    throw new Exception("cannot read entry from zip file");
                if (!"This is the comment for testing".equals(zf.getComment()))
                    throw new Exception("cannot read comment from zip file");
            }
        } finally {
            newZip.delete();
        }

        // Read directory entry
        try {
            try (FileOutputStream fos = new FileOutputStream(newZip);
                 ZipOutputStream zos = new ZipOutputStream(fos))
            {
                ZipEntry ze = new ZipEntry("directory/");
                zos.putNextEntry(ze);
                zos.closeEntry();
            }
            try (ZipFile zf = new ZipFile(newZip)) {
                ZipEntry ze = zf.getEntry("directory/");
                if (ze == null || !ze.isDirectory())
                    throw new RuntimeException("read entry \"directory/\" failed");
                try (InputStream is = zf.getInputStream(ze)) {
                    is.available();
                } catch (Exception x) {
                    x.printStackTrace();
                }

                ze = zf.getEntry("directory");
                if (ze == null || !ze.isDirectory())
                    throw new RuntimeException("read entry \"directory\" failed");
                try (InputStream is = zf.getInputStream(ze)) {
                    is.available();
                } catch (Exception x) {
                    x.printStackTrace();
                }
            }
        } finally {
            newZip.delete();
        }

        // Throw a FNF exception when read a non-existing zip file
        try { unreached (new ZipFile(
                             new File(System.getProperty("test.src", "."),
                                     "input"
                                      + String.valueOf(new java.util.Random().nextInt())
                                      + ".zip")));
        } catch (NoSuchFileException nsfe) {}

        // read a zip file with ZIP64 end
        Path path = Paths.get(System.getProperty("test.dir", ""), "end64.zip");
        try {
            URI uri = URI.create("jar:" + path.toUri());
            Map<String, Object> env = Map.of("create", "true", "forceZIP64End", "true");
            try (FileSystem fs = FileSystems.newFileSystem(uri, env)) {
                Files.write(fs.getPath("hello"), "hello".getBytes());
            }
            try (ZipFile zf = new ZipFile(path.toFile())) {
                if (!"hello".equals(new String(zf.getInputStream(new ZipEntry("hello"))
                                               .readAllBytes(),
                                               US_ASCII)))
                    throw new RuntimeException("zipfile: read entry failed");
            } catch (IOException x) {
                throw new RuntimeException("zipfile: zip64 end failed");
            }
            try (FileSystem fs = FileSystems.newFileSystem(uri, Map.of())) {
                if (!"hello".equals(new String(Files.readAllBytes(fs.getPath("hello")))))
                    throw new RuntimeException("zipfs: read entry failed");
            } catch (IOException x) {
                throw new RuntimeException("zipfile: zip64 end failed");
            }
        } finally {
            Files.deleteIfExists(path);
        }

        // read a zip file created via "echo hello | zip dst.zip -", which uses
        // ZIP64 end record
        if (Files.notExists(Paths.get("/usr/bin/zip")))
            return;
        try {
            Process zip = new ProcessBuilder("zip", path.toString().toString(), "-").start();
            OutputStream os = zip.getOutputStream();
            os.write("hello".getBytes(US_ASCII));
            os.close();
            zip.waitFor();
            if (zip.exitValue() == 0 && Files.exists(path)) {
                try (ZipFile zf = new ZipFile(path.toFile())) {
                    if (!"hello".equals(new String(zf.getInputStream(new ZipEntry("-"))
                                                       .readAllBytes())))
                        throw new RuntimeException("zipfile: read entry failed");
                } catch (IOException x) {
                    throw new RuntimeException("zipfile: zip64 end failed");
                }
            }
        } finally {
            Files.deleteIfExists(path);
        }
    }
}

quality86%

¤ Dauer der Verarbeitung: 0.15 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.

Bemerkung:

Die farbliche Syntaxdarstellung ist noch experimentell.