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php获取apk包信息的方法
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有时候在使用php上传安卓apk包的时候，我们需要获取安卓apk包内的信息，本文以实例形式讲述了php获取apk包信息的方法。具体实现方法如下：
<?php
/*解析安卓apk包中的压缩XML文件，还原和读取XML内容
依赖功能：需要PHP的ZIP包函数支持。*/
include('./Apkparser.php');
$appObj = new Apkparser();
$targetFile = a.apk;//apk所在的路径地址
$res = $appObj->open($targetFile);
$appObj->getAppName(); // 应用名称
$appObj->getPackage(); // 应用包名
$appObj->getVersionName(); // 版本名称
$appObj->getVersionCode(); // 版本代码
?>
以下是Apkparser类包，把以下代码复制出来保存为Apkparser.php就可以执行以上代码
<?php
//-------------------------------
//Apkparser类包开始
//-------------------------------
class ApkParser{
//----------------------
// 公共函数，供外部调用
//----------------------
public function open($apk_file, $xml_file='AndroidManifest.xml'){
$zip = new \ZipArchive;
if ($zip->open($apk_file) === TRUE) {
$xml = $zip->getFromName($xml_file);
$zip->close();
if ($xml){
try {
return $this->parseString($xml);
}catch (Exception $e){
}
}
}
return false;
}
public function parseString($xml){
$this->xml = $xml;
$this->length = strlen($xml);
$this->root = $this->parseBlock(self::AXML_FILE);
return true;
}
public function getXML($node=NULL, $lv=-1){
if ($lv == -1) $node = $this->root;
if (!$node) return '';
if ($node['type'] == self::END_TAG) $lv--;
$xml = @($node['line'] == 0 || $node['line'] == $this->line) ? '' : "\n".str_repeat(' ', $lv);
$xml .= $node['tag'];
$this->line = @$node['line'];
foreach ($node['child'] as $c){
$xml .= $this->getXML($c, $lv+1);
}
return $xml;
}
public function getPackage(){
return $this->getAttribute('manifest', 'package');
}
public function getVersionName(){
return $this->getAttribute('manifest', 'android:versionName');
}
public function getVersionCode(){
return $this->getAttribute('manifest', 'android:versionCode');
}
public function getAppName(){
return $this->getAttribute('manifest/application', 'android:name');
}
public function getMainActivity(){
for ($id=0; true; $id++){
$act = $this->getAttribute("manifest/application/activity[{$id}]/intent-filter/action", 'android:name');
if (!$act) break;
if ($act == 'android.intent.action.MAIN') return $this->getActivity($id);
}
return NULL;
}
public function getActivity($idx=0){
$idx = intval($idx);
return $this->getAttribute("manifest/application/activity[{$idx}]", 'android:name');
}
public function getAttribute($path, $name){
$r = $this->getElement($path);
if (is_null($r)) return NULL;
if (isset($r['attrs'])){
foreach ($r['attrs'] as $a){
if ($a['ns_name'] == $name) return $this->getAttributeValue($a);
}
}
return NULL;
}
//----------------------
// 类型常量定义
//----------------------
const AXML_FILE = 0x00080003;
const STRING_BLOCK = 0x001C0001;
const RESOURCEIDS = 0x00080180;
const START_NAMESPACE = 0x00100100;
const END_NAMESPACE = 0x00100101;
const START_TAG = 0x00100102;
const END_TAG = 0x00100103;
const TEXT = 0x00100104;
const TYPE_NULL =0;
const TYPE_REFERENCE =1;
const TYPE_ATTRIBUTE =2;
const TYPE_STRING =3;
const TYPE_FLOAT =4;
const TYPE_DIMENSION =5;
const TYPE_FRACTION =6;
const TYPE_INT_DEC =16;
const TYPE_INT_HEX =17;
const TYPE_INT_BOOLEAN =18;
const TYPE_INT_COLOR_ARGB8 =28;
const TYPE_INT_COLOR_RGB8 =29;
const TYPE_INT_COLOR_ARGB4 =30;
const TYPE_INT_COLOR_RGB4 =31;
const UNIT_MASK = 15;
private static $RADIX_MULTS = array(0.00390625, 3.051758E-005, 1.192093E-007, 4.656613E-010);
private static $DIMENSION_UNITS = array("px","dip","sp","pt","in","mm","","");
private static $FRACTION_UNITS = array("%","%p","","","","","","");
private $xml='';
private $length = 0;
private $stringCount = 0;
private $styleCount = 0;
private $stringTab = array();
private $styleTab = array();
private $resourceIDs = array();
private $ns = array();
private $cur_ns = NULL;
private $root = NULL;
private $line = 0;
//----------------------
// 内部私有函数
//----------------------
private function getElement($path){
if (!$this->root) return NULL;
$ps = explode('/', $path);
$r = $this->root;
foreach ($ps as $v){
if (preg_match('/([^\[]+)\[([0-9]+)\]$/', $v, $ms)){
$v = $ms[1];
$off = $ms[2];
}else {
$off = 0;
}
foreach ($r['child'] as $c){
if ($c['type'] == self::START_TAG && $c['ns_name'] == $v){
if ($off == 0){
$r = $c; continue 2;
}else {
$off--;
}
}
}
// 没有找到节点
return NULL;
}
return $r;
}
private function parseBlock($need = 0){
$o = 0;
$type = $this->get32($o);
if ($need && $type != $need) throw new Exception('Block Type Error', 1);
$size = $this->get32($o);
if ($size < 8 || $size > $this->length) throw new Exception('Block Size Error', 2);
$left = $this->length - $size;
$props = false;
switch ($type){
case self::AXML_FILE:
$props = array(
'line' => 0,
'tag' => '<?xml version="1.0" encoding="utf-8"?>'
);
break;
case self::STRING_BLOCK:
$this->stringCount = $this->get32($o);
$this->styleCount = $this->get32($o);
$o += 4;
$strOffset = $this->get32($o);
$styOffset = $this->get32($o);
$strListOffset = $this->get32array($o, $this->stringCount);
$styListOffset = $this->get32array($o, $this->styleCount);
$this->stringTab = $this->stringCount > 0 ? $this->getStringTab($strOffset, $strListOffset) : array();
$this->styleTab = $this->styleCount > 0 ? $this->getStringTab($styOffset, $styListOffset) : array();
$o = $size;
break;
case self::RESOURCEIDS:
$count = $size / 4 - 2;
$this->resourceIDs = $this->get32array($o, $count);
break;
case self::START_NAMESPACE:
$o += 8;
$prefix = $this->get32($o);
$uri = $this->get32($o);
if (empty($this->cur_ns)){
$this->cur_ns = array();
$this->ns[] = &$this->cur_ns;
}
$this->cur_ns[$uri] = $prefix;
break;
case self::END_NAMESPACE:
$o += 8;
$prefix = $this->get32($o);
$uri = $this->get32($o);
if (empty($this->cur_ns)) break;
unset($this->cur_ns[$uri]);
break;
case self::START_TAG:
$line = $this->get32($o);
$o += 4;
$attrs = array();
$props = array(
'line' => $line,
'ns' => $this->getNameSpace($this->get32($o)),
'name' => $this->getString($this->get32($o)),
'flag' => $this->get32($o),
'count' => $this->get16($o),
'id' => $this->get16($o)-1,
'class' => $this->get16($o)-1,
'style' => $this->get16($o)-1,
'attrs' => &$attrs
);
$props['ns_name'] = $props['ns'].$props['name'];
for ($i=0; $i < $props['count']; $i++){
$a = array(
'ns' => $this->getNameSpace($this->get32($o)),
'name' => $this->getString($this->get32($o)),
'val_str' => $this->get32($o),
'val_type' => $this->get32($o),
'val_data' => $this->get32($o)
);
$a['ns_name'] = $a['ns'].$a['name'];
$a['val_type'] >>= 24;
$attrs[] = $a;
}
// 处理TAG字符串
$tag = "<{$props['ns_name']}";
foreach ($this->cur_ns as $uri => $prefix){
$uri = $this->getString($uri);
$prefix = $this->getString($prefix);
$tag .= " xmlns:{$prefix}=\"{$uri}\"";
}
foreach ($props['attrs'] as $a){
$tag .= " {$a['ns_name']}=\"".
$this->getAttributeValue($a).
'"';
}
$tag .= '>';
$props['tag'] = $tag;
unset($this->cur_ns);
$this->cur_ns = array();
$this->ns[] = &$this->cur_ns;
$left = -1;
break;
case self::END_TAG:
$line = $this->get32($o);
$o += 4;
$props = array(
'line' => $line,
'ns' => $this->getNameSpace($this->get32($o)),
'name' => $this->getString($this->get32($o))
);
$props['ns_name'] = $props['ns'].$props['name'];
$props['tag'] = "</{$props['ns_name']}>";
if (count($this->ns) > 1){
array_pop($this->ns);
unset($this->cur_ns);
$this->cur_ns = array_pop($this->ns);
$this->ns[] = &$this->cur_ns;
}
break;
case self::TEXT:
$o += 8;
$props = array(
'tag' => $this->getString($this->get32($o))
);
$o += 8;
break;
default:
throw new Exception('Block Type Error', 3);
break;
}
$this->skip($o);
$child = array();
while ($this->length > $left){
$c = $this->parseBlock();
if ($props && $c) $child[] = $c;
if ($left == -1 && $c['type'] == self::END_TAG){
$left = $this->length;
break;
}
}
if ($this->length != $left) throw new Exception('Block Overflow Error', 4);
if ($props){
$props['type'] = $type;
$props['size'] = $size;
$props['child'] = $child;
return $props;
}else {
return false;
}
}
private function getAttributeValue($a){
$type = &$a['val_type'];
$data = &$a['val_data'];
switch ($type){
case self::TYPE_STRING:
return $this->getString($a['val_str']);
case self::TYPE_ATTRIBUTE:
return sprintf('?%s%08X', self::_getPackage($data), $data);
case self::TYPE_REFERENCE:
return sprintf('@%s%08X', self::_getPackage($data), $data);
case self::TYPE_INT_HEX:
return sprintf('0x%08X', $data);
case self::TYPE_INT_BOOLEAN:
return ($data != 0 ? 'true' : 'false');
case self::TYPE_INT_COLOR_ARGB8:
case self::TYPE_INT_COLOR_RGB8:
case self::TYPE_INT_COLOR_ARGB4:
case self::TYPE_INT_COLOR_RGB4:
return sprintf('#%08X', $data);
case self::TYPE_DIMENSION:
return $this->_complexToFloat($data).self::$DIMENSION_UNITS[$data & self::UNIT_MASK];
case self::TYPE_FRACTION:
return $this->_complexToFloat($data).self::$FRACTION_UNITS[$data & self::UNIT_MASK];
case self::TYPE_FLOAT:
return $this->_int2float($data);
}
if ($type >=self::TYPE_INT_DEC && $type < self::TYPE_INT_COLOR_ARGB8){
return (string)$data;
}
return sprintf('<0x%X, type 0x%02X>', $data, $type);
}
private function _complexToFloat($data){
return (float)($data & 0xFFFFFF00) * self::$RADIX_MULTS[($data>>4) & 3];
}
private function _int2float($v) {
$x = ($v & ((1 << 23) - 1)) + (1 << 23) * ($v >> 31 | 1);
$exp = ($v >> 23 & 0xFF) - 127;
return $x * pow(2, $exp - 23);
}
private static function _getPackage($data){
return ($data >> 24 == 1) ? 'android:' : '';
}
private function getStringTab($base, $list){
$tab = array();
foreach ($list as $off){
$off += $base;
$len = $this->get16($off);
$mask = ($len >> 0x8) & 0xFF;
$len = $len & 0xFF;
if ($len == $mask){
if ($off + $len > $this->length) throw new Exception('String Table Overflow', 11);
$tab[] = substr($this->xml, $off, $len);
}else {
if ($off + $len * 2 > $this->length) throw new Exception('String Table Overflow', 11);
$str = substr($this->xml, $off, $len * 2);
$tab[] = mb_convert_encoding($str, 'UTF-8', 'UCS-2LE');
}
}
return $tab;
}
private function getString($id){
if ($id > -1 && $id < $this->stringCount){
return $this->stringTab[$id];
}else {
return '';
}
}
private function getNameSpace($uri){
for ($i=count($this->ns); $i > 0; ){
$ns = $this->ns[--$i];
if (isset($ns[$uri])){
$ns = $this->getString($ns[$uri]);
if (!empty($ns)) $ns .= ':';
return $ns;
}
}
return '';
}
private function get32(&$off){
$int = unpack('V', substr($this->xml, $off, 4));
$off += 4;
return array_shift($int);
}
private function get32array(&$off, $size){
if ($size <= 0) return NULL;
$arr = unpack('V*', substr($this->xml, $off, 4 * $size));
if (count($arr) != $size) throw new Exception('Array Size Error', 10);
$off += 4 * $size;
return $arr;
}
private function get16(&$off){
$int = unpack('v', substr($this->xml, $off, 2));
$off += 2;
return array_shift($int);
}
private function skip($size){
$this->xml = substr($this->xml, $size);
$this->length -= $size;
}
}
//---------------------
//Apkparser类包结束
//---------------------
?>
感兴趣的朋友可以调试运行一下本文实例，相信会对大家的php程序开发带来一定的启发。
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