android 解析未安裝apk中的AndroidManifest.xml以及系統原始碼分析
阿新 • • 發佈:2019-01-07
package com.ljx.test; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Enumeration; import java.util.zip.ZipEntry; import java.util.zip.ZipException; import java.util.zip.ZipFile; import org.xmlpull.v1.XmlPullParser; import org.xmlpull.v1.XmlPullParserException; import org.xmlpull.v1.XmlPullParserFactory; import android.content.res.AXmlResourceParser; import android.util.TypedValue; public class AnalysisApk { public static void main(String[] args) { File file = null; file = new File("F:\\XXX.apk"); ArrayList<String> mActivities = new ArrayList<String>(); try { ZipFile zipFile = new ZipFile(file); Enumeration enumeration = zipFile.entries(); // 獲取到apk中的AndroidManifest.xml檔案 ZipEntry zipEntry = zipFile.getEntry(("AndroidManifest.xml")); AXmlResourceParser parser = new AXmlResourceParser(); parser.open(zipFile.getInputStream(zipEntry)); boolean flag = true; while (flag) { int event = parser.next(); if (event == XmlPullParser.START_TAG) { int count = parser.getAttributeCount(); //// 解析整個AndroidManifest.xml檔案並輸出 // for (int i = 0; i != parser.getAttributeCount(); ++i) { // System.out.printf("%s%s%s=\"%s\"", // new StringBuilder(10), // getNamespacePrefix(parser.getAttributePrefix(i)), // parser.getAttributeName(i), // getAttributeValue(parser, i)); // System.out.println(); // } for (int i = 0, size = parser.getAttributeCount(); i != size; ++i) { // 解析整個AndroidManifest.xml檔案並輸出 // System.out.println("tag-name " + parser.getName()); // System.out.println("name " + // parser.getAttributeName(i)); // System.out.println("value " + // getAttributeValue(parser,i)); // System.out.println(""); // 獲取應用入口activity if (parser.getName().endsWith("activity") && parser.getAttributeName(i).equals("name")) { mActivities.add(getAttributeValue(parser, i)); } if (parser.getAttributeValue(i).contains("MAIN")) { System.out.println(mActivities.get(mActivities.size() - 1)); return; } } } } } catch (ZipException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (XmlPullParserException e) { // TODO Auto-generated catch block e.printStackTrace(); } } private static String getNamespacePrefix(String prefix) { if (prefix == null || prefix.length() == 0) { return ""; } return prefix + ":"; } 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 ""; } private static void log(StringBuilder xmlSb, String format, Object... arguments) { log(true, xmlSb, format, arguments); } private static void log(boolean newLine, StringBuilder xmlSb, String format, Object... arguments) { // System.out.printf(format,arguments); // if(newLine) System.out.println(); xmlSb.append(String.format(format, arguments)); if (newLine) xmlSb.append("\n"); } /////////////////////////////////// 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", "", "", "", "", "", "" }; }
上面main方法中註釋的兩段程式碼,都是對androidManifest.xml檔案進行解析,只是輸出樣式不同,有興趣的可以自己試著寫下,然後看下輸出結果是否是我們應用的入口activity。