内容简介:Apache Commons Compress 1.18 已发布,这是一个 Bug 修复版本, ZIP 软件包的其中一项更改修复了一个可以被用作拒绝服务攻击的漏洞。 下载地址:http://commons.apache.org/proper/commons-compress/download_co...
Apache Commons Compress 1.18 已发布,这是一个 Bug 修复版本, ZIP 软件包的其中一项更改修复了一个可以被用作拒绝服务攻击的漏洞。
下载地址:http://commons.apache.org/proper/commons-compress/download_compress.cgi
其它一些新特性
New features:
It is now possible to specify the arguments of zstd-jni's ZstdOutputStream constructors via Commons Compress as well.
Fixed Bugs:
The example Expander class has been vulnerable to a path traversal in the edge case that happens when the target directory has a sibling directory and the name of the target directory is a prefix of the sibling directory's name.
Changed the OSGi Import-Package to also optionally import javax.crypto so encrypted archives can be read.
Changed various implementations of the close method to better ensure all held resources get closed even if exceptions are thrown during the closing the stream.
ZipArchiveInputStream can now detect the APK Signing Block used in signed Android APK files and treats it as an "end of archive" marker.
The cpio streams didn't handle archives using a multi-byte encoding properly.
ZipArchiveInputStream#read would silently return -1 on a corrupted stored entry and even return > 0 after hitting the end of the archive.
ArArchiveInputStream#read would allow to read from the stream without opening an entry at all.
Commons Compress 用以实现将文件压缩或解压成 tar、zip、bzip2 等格式。
下面代码将文件压缩成zip格式:
ArArchiveEntry entry = new ArArchiveEntry(name, size); arOutput.putArchiveEntry(entry); arOutput.write(contentOfEntry); arOutput.closeArchiveEntry();
Zip文件的解压缩:
ArArchiveEntry entry = (ArArchiveEntry) arInput.getNextEntry(); byte[] content = new byte[entry.getSize()]; LOOP UNTIL entry.getSize() HAS BEEN READ { arInput.read(content, offset, content.length - offset); }
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