apk文件解析，学习笔记

Android应用程序包文件(APK) 是一种Android操作系统上的应用程序安装文件格式，其英文全称为“application package file”。

如果懂得使用反编译工具，可以下载apk解析工具，获得反编译代码。

需要下载：SharpZipLib.ziphttp://www.icsharpcode.net/opensource/sharpziplib/download.aspx

主要方法如下

using ICSharpCode.SharpZipLib.Zip;

public static Dictionary<object, object> getPackageInfo(string path){

Dictionary<object, object> returnMap = new Dictionary<object, object>();returnMap.Add("版本编号(VersionCode)", "");returnMap.Add("版本名称(VersionName)", "");returnMap.Add("包名(Package)", "");returnMap.Add("签名(Sig)", "");returnMap.Add("启动activity", "");returnMap["证书有效期"] = "";returnMap["证书过期时间"] = "";returnMap["证书Hash"] = "";returnMap["证书md5"] = "";returnMap["PublicKey"] = "";List<string> list = new List<string> { ".DSA", ".RSA" };if (string.IsNullOrWhiteSpace(path)){throw new Exception("文件路径不正确:" + path);}string str = "";if (path.LastIndexOf(".") >= 0){str = path.Substring(path.LastIndexOf("."));}if (".apk".Equals(str, StringComparison.OrdinalIgnoreCase)){try{ZipInputStream zip = new ZipInputStream(File.OpenRead(path));ZipEntry zipEntry = null;while ((zipEntry = zip.GetNextEntry()) != null){string fileName = Path.GetFileName(zipEntry.Name);if ((fileName != null) && (fileName.LastIndexOf(".") >= 0)){string item = fileName.Substring(fileName.LastIndexOf("."));if ("AndroidManifest.xml".Equals(fileName, StringComparison.OrdinalIgnoreCase)){getPackageDetails(zip, zipEntry, returnMap);}else if (list.Contains(item)){getSig(zip, zipEntry, returnMap);}}}zip.Close();}catch (Exception exception){throw new Exception("解析apk包错误:" + exception.Message);}}return returnMap;}

PRivate static void getSig(ZipInputStream zip, ZipEntry zipEntry, Dictionary<object, object> returnMap){MemoryStream stream = new MemoryStream();byte[] rawCertData = new byte[0x400];int count = 0;while ((count = zip.Read(rawCertData, 0, 0x400)) > 0){stream.Write(rawCertData, 0, count);}stream.Seek(0L, SeekOrigin.Begin);string str = "";X509Certificate certificate = new X509Certificate(stream.GetBuffer());returnMap["证书有效期"] = certificate.GetEffectiveDateString();returnMap["证书过期时间"] = certificate.GetExpirationDateString();returnMap["证书Hash"] = certificate.GetCertHashString();returnMap["证书MD5"] = BitConverter.ToString(MD5.Create().ComputeHash(certificate.GetRawCertData())).Replace('-', ':');returnMap["PublicKey"] = certificate.GetPublicKeyString();rawCertData = certificate.GetRawCertData();byte[] buffer2 = SHA1.Create().ComputeHash(certificate.GetRawCertData());for (int i = 0; i < buffer2.Length; i++){str = str + ((sbyte) buffer2[i]);}stream.Close();returnMap["签名(Sig)"] = str;}

apk文件上传大小限制，web.config文件添加如下：

<system.web> <httpRuntime maxRequestLength="1073741824" executionTimeout="3600" /> </system.web>

<system.webServer> <security> <requestFiltering>

<requestLimits maxAllowedContentLength="1073741824"> </requestLimits> </requestFiltering> </security> </system.webServer>