Created
April 20, 2012 03:33
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Extract AndroidManifest.xml information.
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| import java.io.FileInputStream; | |
| import java.io.FileNotFoundException; | |
| import java.io.IOException; | |
| import java.io.InputStream; | |
| import java.util.zip.ZipEntry; | |
| import java.util.zip.ZipFile; | |
| class AndroidXMLDecompress { | |
| // decompressXML -- Parse the 'compressed' binary form of Android XML docs | |
| // such as for AndroidManifest.xml in .apk files | |
| public static int endDocTag = 0x00100101; | |
| public static int startTag = 0x00100102; | |
| public static int endTag = 0x00100103; | |
| static void prt(String str) { | |
| //System.err.print(str); | |
| } | |
| public static String decompressXML(byte[] xml) { | |
| StringBuilder finalXML = new StringBuilder(); | |
| // Compressed XML file/bytes starts with 24x bytes of data, | |
| // 9 32 bit words in little endian order (LSB first): | |
| // 0th word is 03 00 08 00 | |
| // 3rd word SEEMS TO BE: Offset at then of StringTable | |
| // 4th word is: Number of strings in string table | |
| // WARNING: Sometime I indiscriminently display or refer to word in | |
| // little endian storage format, or in integer format (ie MSB first). | |
| int numbStrings = LEW(xml, 4 * 4); | |
| // StringIndexTable starts at offset 24x, an array of 32 bit LE offsets | |
| // of the length/string data in the StringTable. | |
| int sitOff = 0x24; // Offset of start of StringIndexTable | |
| // StringTable, each string is represented with a 16 bit little endian | |
| // character count, followed by that number of 16 bit (LE) (Unicode) | |
| // chars. | |
| int stOff = sitOff + numbStrings * 4; // StringTable follows | |
| // StrIndexTable | |
| // XMLTags, The XML tag tree starts after some unknown content after the | |
| // StringTable. There is some unknown data after the StringTable, scan | |
| // forward from this point to the flag for the start of an XML start | |
| // tag. | |
| int xmlTagOff = LEW(xml, 3 * 4); // Start from the offset in the 3rd | |
| // word. | |
| // Scan forward until we find the bytes: 0x02011000(x00100102 in normal | |
| // int) | |
| for (int ii = xmlTagOff; ii < xml.length - 4; ii += 4) { | |
| if (LEW(xml, ii) == startTag) { | |
| xmlTagOff = ii; | |
| break; | |
| } | |
| } // end of hack, scanning for start of first start tag | |
| // XML tags and attributes: | |
| // Every XML start and end tag consists of 6 32 bit words: | |
| // 0th word: 02011000 for startTag and 03011000 for endTag | |
| // 1st word: a flag?, like 38000000 | |
| // 2nd word: Line of where this tag appeared in the original source file | |
| // 3rd word: FFFFFFFF ?? | |
| // 4th word: StringIndex of NameSpace name, or FFFFFFFF for default NS | |
| // 5th word: StringIndex of Element Name | |
| // (Note: 01011000 in 0th word means end of XML document, endDocTag) | |
| // Start tags (not end tags) contain 3 more words: | |
| // 6th word: 14001400 meaning?? | |
| // 7th word: Number of Attributes that follow this tag(follow word 8th) | |
| // 8th word: 00000000 meaning?? | |
| // Attributes consist of 5 words: | |
| // 0th word: StringIndex of Attribute Name's Namespace, or FFFFFFFF | |
| // 1st word: StringIndex of Attribute Name | |
| // 2nd word: StringIndex of Attribute Value, or FFFFFFF if ResourceId | |
| // used | |
| // 3rd word: Flags? | |
| // 4th word: str ind of attr value again, or ResourceId of value | |
| // TMP, dump string table to tr for debugging | |
| // tr.addSelect("strings", null); | |
| // for (int ii=0; ii<numbStrings; ii++) { | |
| // // Length of string starts at StringTable plus offset in StrIndTable | |
| // String str = compXmlString(xml, sitOff, stOff, ii); | |
| // tr.add(String.valueOf(ii), str); | |
| // } | |
| // tr.parent(); | |
| // Step through the XML tree element tags and attributes | |
| int off = xmlTagOff; | |
| int indent = 0; | |
| int startTagLineNo = -2; | |
| while (off < xml.length) { | |
| int tag0 = LEW(xml, off); | |
| // int tag1 = LEW(xml, off+1*4); | |
| int lineNo = LEW(xml, off + 2 * 4); | |
| // int tag3 = LEW(xml, off+3*4); | |
| int nameNsSi = LEW(xml, off + 4 * 4); | |
| int nameSi = LEW(xml, off + 5 * 4); | |
| if (tag0 == startTag) { // XML START TAG | |
| int tag6 = LEW(xml, off + 6 * 4); // Expected to be 14001400 | |
| int numbAttrs = LEW(xml, off + 7 * 4); // Number of Attributes | |
| // to follow | |
| // int tag8 = LEW(xml, off+8*4); // Expected to be 00000000 | |
| off += 9 * 4; // Skip over 6+3 words of startTag data | |
| String name = compXmlString(xml, sitOff, stOff, nameSi); | |
| // tr.addSelect(name, null); | |
| startTagLineNo = lineNo; | |
| // Look for the Attributes | |
| StringBuffer sb = new StringBuffer(); | |
| for (int ii = 0; ii < numbAttrs; ii++) { | |
| int attrNameNsSi = LEW(xml, off); // AttrName Namespace Str | |
| // Ind, or FFFFFFFF | |
| int attrNameSi = LEW(xml, off + 1 * 4); // AttrName String | |
| // Index | |
| int attrValueSi = LEW(xml, off + 2 * 4); // AttrValue Str | |
| // Ind, or | |
| // FFFFFFFF | |
| int attrFlags = LEW(xml, off + 3 * 4); | |
| int attrResId = LEW(xml, off + 4 * 4); // AttrValue | |
| // ResourceId or dup | |
| // AttrValue StrInd | |
| off += 5 * 4; // Skip over the 5 words of an attribute | |
| String attrName = compXmlString(xml, sitOff, stOff, | |
| attrNameSi); | |
| String attrValue = ""; | |
| if (attrValueSi != -1) { | |
| attrValue = compXmlString(xml, sitOff, stOff, attrValueSi) | |
| } else { | |
| if (attrResId == -1) | |
| attrValue = "resourceID 0x" + Integer.toHexString(attrResId); | |
| else | |
| attrValue = Integer.valueOf(Integer.toHexString(attrResId), 16).intValue(); | |
| //System.out.println(attrName + " >>> " + attrValue.split("0x")[1]); | |
| } | |
| // attrValue = Integer.valueOf(Integer.toHexString(attrResId), 16).intValue(); | |
| sb.append(" " + attrName + "=\"" + attrValue + "\""); | |
| // tr.add(attrName, attrValue); | |
| } | |
| finalXML.append("<" + name + sb + ">"); | |
| prtIndent(indent, "<" + name + sb + ">"); | |
| indent++; | |
| } else if (tag0 == endTag) { // XML END TAG | |
| indent--; | |
| off += 6 * 4; // Skip over 6 words of endTag data | |
| String name = compXmlString(xml, sitOff, stOff, nameSi); | |
| finalXML.append("</" + name + ">"); | |
| prtIndent(indent, "</" + name + "> (line " + startTagLineNo | |
| + "-" + lineNo + ")"); | |
| // tr.parent(); // Step back up the NobTree | |
| } else if (tag0 == endDocTag) { // END OF XML DOC TAG | |
| break; | |
| } else { | |
| prt(" Unrecognized tag code '" + Integer.toHexString(tag0) | |
| + "' at offset " + off); | |
| break; | |
| } | |
| } // end of while loop scanning tags and attributes of XML tree | |
| //prt(" end at offset " + off); | |
| return finalXML.toString(); | |
| } // end of decompressXML | |
| public static String compXmlString(byte[] xml, int sitOff, int stOff, int strInd) { | |
| if (strInd < 0) | |
| return null; | |
| int strOff = stOff + LEW(xml, sitOff + strInd * 4); | |
| return compXmlStringAt(xml, strOff); | |
| } | |
| public static String spaces = " "; | |
| public static void prtIndent(int indent, String str) { | |
| prt(spaces.substring(0, Math.min(indent * 2, spaces.length())) + str); | |
| } | |
| // compXmlStringAt -- Return the string stored in StringTable format at | |
| // offset strOff. This offset points to the 16 bit string length, which | |
| // is followed by that number of 16 bit (Unicode) chars. | |
| public static String compXmlStringAt(byte[] arr, int strOff) { | |
| int strLen = arr[strOff + 1] << 8 & 0xff00 | arr[strOff] & 0xff; | |
| byte[] chars = new byte[strLen]; | |
| for (int ii = 0; ii < strLen; ii++) { | |
| chars[ii] = arr[strOff + 2 + ii * 2]; | |
| } | |
| return new String(chars); // Hack, just use 8 byte chars | |
| } // end of compXmlStringAt | |
| // LEW -- Return value of a Little Endian 32 bit word from the byte array | |
| // at offset off. | |
| public static int LEW(byte[] arr, int off) { | |
| return arr[off + 3] << 24 & 0xff000000 | arr[off + 2] << 16 & 0xff0000 | arr[off + 1] << 8 & 0xff00 | arr[off] & 0xFF; | |
| } // end of LEW | |
| public static void main(String[] args) throws IOException { | |
| String fileName = args[0]; | |
| InputStream is = null; | |
| ZipFile zip = null; | |
| if (fileName.endsWith(".apk") || fileName.endsWith(".zip")) { | |
| zip = new ZipFile(fileName); | |
| ZipEntry mft = zip.getEntry("AndroidManifest.xml"); | |
| is = zip.getInputStream(mft); | |
| } else { | |
| is = new FileInputStream(fileName); | |
| } | |
| byte[] buf = new byte[10240]; | |
| int bytesRead = is.read(buf); | |
| is.close(); | |
| if (zip != null) { | |
| zip.close(); | |
| } | |
| String xml = AndroidXMLDecompress.decompressXML(buf); | |
| System.out.println(xml); | |
| } | |
| } | |
| println "************************************* " | |
| def is = new FileInputStream("/tmp/AndroidManifest.xml") | |
| byte[] buf = new byte[10240]; | |
| int bytesRead = is.read(buf); | |
| is.close(); | |
| String xml = AndroidXMLDecompress.decompressXML(buf); | |
| System.out.println(xml); | |
works like a charm, tnks!
Fix for decompress file with UTF16 text:
public string CompXmlStringAt(byte[] arr, int strOff)
{
int strLen = arr[strOff + 1] << 8 & 0xff00 | arr[strOff] & 0xff;
byte[] chars = new byte[strLen];
var lst=new List<byte>();
for (int ii = 0; ii < strLen; ii++)
{
//chars[ii] = arr[strOff + 2 + ii * 2];
lst.Add(arr[strOff + 2 + ii * 2]);
lst.Add(arr[strOff + 2 + ii * 2+1]);
}
return System.Text.Encoding.GetEncoding("UTF-16").GetString(lst.ToArray()); // Hack, just use 8 byte chars
} // end of CompXmlStringAt
GOD BLESS YOU!!!
So after decompressing, how to recompress the xml string
@vassav I'm quite sure it takes more edits than that to port the entire code to C#
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It works!!! Thank U!!!