JAVA 读取APK包信息以及签名信息

本段代码能够读取APK的版本、包名、签名信息

package com.sg.util;

import java.io.File;
import java.io.IOException;
import java.security.cert.X509Certificate;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

import org.xmlpull.v1.XmlPullParser;

import android.content.res.AXmlResourceParser;
import android.util.TypedValue;

/**
 * 
 * 
 * @ClassName: AnalysisApk
 * 
 * @Description:
 * 
 * @author rickicui
 * 
 * @date Jan 28, 2013 6:07:39 PM
 * 
 * 
 */
public class AnalysisApk {
	/**
	 * 解压 zip 文件(apk可以当成一个zip文件)，注意不能解压 rar 文件哦，只能解压 zip 文件 解压 rar 文件 会出现
	 * java.io.IOException: Negative seek offset 异常 create date:2009- 6- 9
	 * author:Administrator
	 * 
	 * @param apkUrl
	 *            zip 文件，注意要是正宗的 zip 文件哦，不能是把 rar 的直接改为 zip 这样会出现
	 *            java.io.IOException: Negative seek offset 异常
	 * @param logoUrl
	 *            图标生成的地址
	 * @throws Exception
	 * @throws IOException
	 */
	public static String[] unZip(String apkUrl, String logoUrl)
			throws Exception {
		// [0]:版本号;[1]包名;[2]签名
		String[] st = new String[3];
		byte b[] = new byte[1024];
		int length;
		ZipFile zipFile;
		try {
			zipFile = new ZipFile(new File(apkUrl));
			Enumeration enumeration = zipFile.entries();
			ZipEntry zipEntry = null;
			while (enumeration.hasMoreElements()) {
				zipEntry = (ZipEntry) enumeration.nextElement();

				if (zipEntry.isDirectory()) {

				} else {
					if ("AndroidManifest.xml".equals(zipEntry.getName())) {
						try {
							AXmlResourceParser parser = new AXmlResourceParser();
							parser.open(zipFile.getInputStream(zipEntry));
							while (true) {
								int type = parser.next();
								if (type == XmlPullParser.END_DOCUMENT) {
									break;
								}
								switch (type) {
								case XmlPullParser.START_TAG: {
									for (int i = 0; i != parser
											.getAttributeCount(); ++i) {
										if ("versionName".equals(parser
												.getAttributeName(i))) {
											st[0] = getAttributeValue(parser, i);
										} else if ("package".equals(parser
												.getAttributeName(i))) {
											st[1] = getAttributeValue(parser, i);
										}
									}
								}
								}
							}
						} catch (Exception e) {
							e.printStackTrace();
						}
					}

					if ("META-INF/CERT.RSA".equals(zipEntry.getName())) {

						X509Certificate publicKey = ApkSign
								.readSignatureBlock(zipFile
										.getInputStream(zipEntry));

						st[2] = publicKey.getPublicKey().toString();
					}

					// if
					// ("res/drawable-ldpi/icon.png".equals(zipEntry.getName()))
					// {
					// OutputStream outputStream = new FileOutputStream(
					// logoUrl);
					// InputStream inputStream = zipFile
					// .getInputStream(zipEntry);
					// while ((length = inputStream.read(b)) > 0)
					// outputStream.write(b, 0, length);
					// }
				}
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			// e.printStackTrace();
		}
		return st;
	}

	private static String getAttributeValue(AXmlResourceParser parser, int index) {
		int type = parser.getAttributeValueType(index);
		int data = parser.getAttributeValueData(index);
		if (type == TypedValue.TYPE_STRING) {
			return parser.getAttributeValue(index);
		}
		if (type == TypedValue.TYPE_ATTRIBUTE) {
			return String.format("?%s%08X", getPackage(data), data);
		}
		if (type == TypedValue.TYPE_REFERENCE) {
			return String.format("@%s%08X", getPackage(data), data);
		}
		if (type == TypedValue.TYPE_FLOAT) {
			return String.valueOf(Float.intBitsToFloat(data));
		}
		if (type == TypedValue.TYPE_INT_HEX) {
			return String.format("0x%08X", data);
		}
		if (type == TypedValue.TYPE_INT_BOOLEAN) {
			return data != 0 ? "true" : "false";
		}
		if (type == TypedValue.TYPE_DIMENSION) {
			return Float.toString(complexToFloat(data))
					+ DIMENSION_UNITS[data & TypedValue.COMPLEX_UNIT_MASK];
		}
		if (type == TypedValue.TYPE_FRACTION) {
			return Float.toString(complexToFloat(data))
					+ FRACTION_UNITS[data & TypedValue.COMPLEX_UNIT_MASK];
		}
		if (type >= TypedValue.TYPE_FIRST_COLOR_INT
				&& type <= TypedValue.TYPE_LAST_COLOR_INT) {
			return String.format("#%08X", data);
		}
		if (type >= TypedValue.TYPE_FIRST_INT
				&& type <= TypedValue.TYPE_LAST_INT) {
			return String.valueOf(data);
		}
		return String.format("<0x%X, type 0x%02X>", data, type);
	}

	private static String getPackage(int id) {
		if (id >>> 24 == 1) {
			return "android:";
		}
		return "";
	}

	// ///////////////////////////////// ILLEGAL STUFF, DONT LOOK :)
	public static float complexToFloat(int complex) {
		return (float) (complex & 0xFFFFFF00) * RADIX_MULTS[(complex >> 4) & 3];
	}

	private static final float RADIX_MULTS[] = { 0.00390625F, 3.051758E-005F,
			1.192093E-007F, 4.656613E-010F };
	private static final String DIMENSION_UNITS[] = { "px", "dip", "sp", "pt",
			"in", "mm", "", "" };
	private static final String FRACTION_UNITS[] = { "%", "%p", "", "", "", "",
			"", "" };

	public static void main(String[] args) {
		String[] str = null;
		try {
			str = AnalysisApk
					.unZip(
							"C:\\Documents and Settings\\Administrator\\桌面\\air.com.oranginalplan.weaphones.1361250976472.apk",
							"");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(str[0]);
		System.out.println(str[1]);
		System.out.println(str[2]);
	}
}