Android Jsoup证书问题 [英] Android Jsoup certificate issues
本文介绍了Android Jsoup证书问题的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我尝试从 https://gist.github.com/michalbcz/4170520 寻求帮助从具有某些证书问题的站点获取html. 我在Eclipse中尝试过，但效果很好，但是在Android中实现时却给了我一些问题. (我是Android新手) 我试图通过单击按钮获取文本字段的值，并尝试使用Toast进行显示.
Taking help from https://gist.github.com/michalbcz/4170520 I tried to fetch html from a site which had some certificate issues. I tried in Eclipse and it worked fine, but its giving me some issue when implemented in Android. (I am new to Android) I am trying to fetch the value of a text field on the click of a button and trying to display it using a Toast.
这是代码.
package sample.app;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.provider.SyncStateContract;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.security.SecureRandom;
import java.util.Date;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
public class MainActivity extends AppCompatActivity {
public interface Constants {
String LOG = "sample.app";
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ProgressDialog mProgressDialog;
Log.e(Constants.LOG , "we are here");
Button b = (Button)findViewById(R.id.button);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new Status().execute();
}
});
}
public class Status extends AsyncTask<Void , Void , Void>{
ProgressDialog mProgressDialog;
public String value = null;
@Override
protected void onPreExecute() {
super.onPreExecute();
EditText userName = (EditText) findViewById(R.id.userName);
EditText passwd = (EditText) findViewById(R.id.editText);
String user = (String)userName.getText().toString();
String pass = (String)passwd.getText().toString();
}
@Override
protected Void doInBackground(Void... params){
SSLContext ctx = null;
try {
ctx = SSLContext.getInstance("TLS");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
}
try {
ctx.init(new KeyManager[0], new TrustManager[]{new DefaultTrustManager()}, new SecureRandom());
} catch (KeyManagementException e) {
e.printStackTrace();
}
SSLContext.setDefault(ctx);
URL url = null;
HttpsURLConnection conn = null;
try {
url = new URL("https://example.com");
} catch (MalformedURLException e) {
e.printStackTrace();
}
try{
conn = (HttpsURLConnection)url.openConnection();
conn.setHostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String arg0, SSLSession arg1) {
return true;
}
});
}
catch (IOException io){
}
try {
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String input = org.apache.commons.io.IOUtils.toString(br);
Document doc = Jsoup.parse(input);
Date d = new Date();
String loginTime = doc.select("input#loginTime").val();
value = loginTime;
} catch (IOException e) {
e.printStackTrace();
}
conn.disconnect();
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
if(value == null){
value = "Nothing";
}
Toast toast = Toast.makeText(MainActivity.this, value, Toast.LENGTH_LONG);
toast.show();
}
}
private static class DefaultTrustManager implements X509TrustManager {
@Override
public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}
}
}
我检查了日志，这是我收到错误消息的地方:
I checked the logs and this is the place where I am getting an error:
BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
br正在获取null值，因此存在异常，并且我无法获取想要的值.
任何帮助，将不胜感激.谢谢.
The br is getting a null value hence there is an exception and I am not able to fetch the value I intend to.
Any help on this will be appreciated. Thanks.
这是我得到的例外.
01-04 09:01:16.800 9483-14095/? E/ERR: javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:328)
at com.android.okhttp.internal.http.SocketConnector.connectTls(SocketConnector.java:103)
at com.android.okhttp.Connection.connect(Connection.java:143)
at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:185)
at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:341)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:437)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:388)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:231)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:138)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:68)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.security.cert.CertificateException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:318)
at com.android.org.conscrypt.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:219)
at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:115)
at com.android.org.conscrypt.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:556)
at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:324)
at com.android.okhttp.internal.http.SocketConnector.connectTls(SocketConnector.java:103)
at com.android.okhttp.Connection.connect(Connection.java:143)
at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:185)
at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:341)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:437)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:388)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:231)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:138)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:68)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
at com.android.org.conscrypt.TrustManagerImpl.checkTrusted(TrustManagerImpl.java:318)
at com.android.org.conscrypt.TrustManagerImpl.checkServerTrusted(TrustManagerImpl.java:219)
at com.android.org.conscrypt.Platform.checkServerTrusted(Platform.java:115)
at com.android.org.conscrypt.OpenSSLSocketImpl.verifyCertificateChain(OpenSSLSocketImpl.java:556)
at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
at com.android.org.conscrypt.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:324)
at com.android.okhttp.internal.http.SocketConnector.connectTls(SocketConnector.java:103)
at com.android.okhttp.Connection.connect(Connection.java:143)
at com.android.okhttp.Connection.connectAndSetOwner(Connection.java:185)
at com.android.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
at com.android.okhttp.internal.http.HttpEngine.nextConnection(HttpEngine.java:341)
at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:330)
at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:437)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:388)
at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:231)
at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:138)
at sample.app.MainActivity$Status.doInBackground(MainActivity.java:68)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
推荐答案
尝试解决问题的一些选项:
Some options to try for solving your issue:
基本上，替换此行:
ctx = SSLContext.getInstance("TLS");
使用
ctx = SSLContext.getInstance("SSL");
2)使用可以接受任何https连接的TrustManager
@Override
protected Void doInBackground(Void... params){
// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(java.security.cert.X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(java.security.cert.X509Certificate[] certs, String authType) {
}
} };
// Install the all-trusting trust manager
try {
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
throw new RuntimeException(e);
}
// Your code ...
URL url = null;
HttpsURLConnection conn = null;
try {
url = new URL("https://example.com");
} catch (MalformedURLException e) {
e.printStackTrace();
}
// ...
}
这篇关于Android Jsoup证书问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
