Question

我正在尝试做一个简单的HttpGet来阅读网页。我有这个在iOS上工作，通过http工作在Android上，但不是https。

网址是内部网络IP和自定义端口，因此我可以使用http://ipaddress:port/MyPage.html

的路径使用这样的http读取

HttpClient httpclient = new DefaultHttpClient(httpParameters);
                    HttpResponse response;
        String responseString = null;
        try {
            // Try connection
            HttpGet get = new HttpGet(params[0].path);
            get.addHeader("Authorization",
                    "Basic "
                            + Base64.encodeBytes(new String(params[0].username + ":" + params[0].password)
                                    .getBytes()));
        response = httpclient.execute(get);
        StatusLine statusLine = response.getStatusLine();
        if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            response.getEntity().writeTo(out);
            out.close();
            responseString = out.toString();
        } else {
            // Closes the connection.
            response.getEntity().getContent().close();
            throw new IOException(statusLine.getReasonPhrase());
        }
    } catch (ClientProtocolException e) {
        Log.e(TAG, "ClientProtocolException");
        this.e = e;
    } catch (IOException e) {
        Log.e(TAG, "IOException");
        this.e = e;
    }
    return responseString;

当我尝试使用https时，出现No peer certificate错误。所以我尝试使用这段代码： HttpClient httpclient = new DefaultHttpClient(httpParameters);

private HttpClient createHttpClient() {
        try {
            KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
            trustStore.load(null, null);

            SSLSocketFactory sf = new MySSLSocketFactory(trustStore);
            sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

            HttpParams params = new BasicHttpParams();
            HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
            HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
            HttpProtocolParams.setUseExpectContinue(params, true);

            SchemeRegistry schReg = new SchemeRegistry();
            schReg.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
            schReg.register(new Scheme("https", sf, 8080));
            ClientConnectionManager conMgr = new ThreadSafeClientConnManager(params, schReg);

            return new DefaultHttpClient(conMgr, params);

        } catch (Exception e) {
            return new DefaultHttpClient();
        }
    }

但这会给我一个Connection closed by peer错误。

我做错了什么？我可以放心地忽略证书，因为它是一个带有自签名证书的内部网络，但我无法控制我的应用程序的用户可能有不同的证书，所以我真的需要自动接受或绕过它。

由于

编辑------------------------------

尝试我的名字后 - 答案如下：我按照建议创建了一个CustomX509TrustManager类，然后使用它创建一个自定义的HttpClient：

private HttpClient sslClient(HttpClient client) {
        try {
            CustomX509TrustManager tm = new CustomX509TrustManager();
            SSLContext ctx = SSLContext.getInstance("TLS");
            ctx.init(null, new TrustManager[] { tm }, null);
            SSLSocketFactory ssf = new MySSLSocketFactory(ctx);
            ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
            ClientConnectionManager ccm = client.getConnectionManager();
            SchemeRegistry sr = ccm.getSchemeRegistry();
            sr.register(new Scheme("https", ssf, 8080));
            return new DefaultHttpClient(ccm, client.getParams());
        } catch (Exception ex) {
            return null;
        }
    }

最后像这样使用这个HttpClient：

private class httpGETTask extends AsyncTask<GetParams, Void, String> {
private Exception e = null;

@Override
protected String doInBackground(GetParams... params) {
    // Set connection parameters
    HttpParams httpParameters = new BasicHttpParams();
    int timeoutConnection = 15000;
    HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
    int timeoutSocket = 15000;
    HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);

    Log.v(TAG, params[0].path);
    HttpClient httpclient = new DefaultHttpClient(httpParameters);
    httpclient = sslClient(httpclient);

    HttpResponse response;
    String responseString = null;
    try {
        // Try connection
        HttpGet get = new HttpGet(params[0].path);
        get.addHeader("Authorization",
                "Basic "
                        + Base64.encodeBytes(new String(params[0].username + ":" + params[0].password)
                                .getBytes()));

        response = httpclient.execute(get);
        StatusLine statusLine = response.getStatusLine();
        if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            response.getEntity().writeTo(out);
            out.close();
            responseString = out.toString();
        } else {
            // Closes the connection.
            response.getEntity().getContent().close();
            throw new IOException(statusLine.getReasonPhrase());
        }
    } catch (ClientProtocolException e) {
        Log.e(TAG, "ClientProtocolException");
        this.e = e;
    } catch (IOException e) {
        Log.e(TAG, "IOException");
        this.e = e;
    }
    return responseString;

记录的路径采用https://ipaddress:8080/Page.html格式但我收到Connection closed By Peer错误：

05-24 08：20：32.500：E / ConnectionHelper（1129）：IOException 05-24 08：20：32.550：E / ConnectionHelper（1129）：异常加载内容 05-24 08：20：32.550：E / ConnectionHelper（1129）： javax.net.ssl.SSLException：连接由对等方05-24关闭 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake（母语方法）05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake（OpenSSLSocketImpl.java:410） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl $ SSLInputStream。（OpenSSLSocketImpl.java:643） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.getInputStream（OpenSSLSocketImpl.java:614） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.io.SocketInputBuffer。（SocketInputBuffer.java:70） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.SocketHttpClientConnection.createSessionInputBuffer（SocketHttpClientConnection.java:83） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.conn.DefaultClientConnection.createSessionInputBuffer（DefaultClientConnection.java:170） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.SocketHttpClientConnection.bind（SocketHttpClientConnection.java:106） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.conn.DefaultClientConnection.openCompleted（DefaultClientConnection.java:129） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection（DefaultClientConnectionOperator.java:172） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.conn.AbstractPoolEntry.open（AbstractPoolEntry.java:164） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.conn.AbstractPooledConnAdapter.open（AbstractPooledConnAdapter.java:119） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.client.DefaultRequestDirector.execute（DefaultRequestDirector.java:360） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:555） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:487） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at org.apache.http.impl.client.AbstractHttpClient.execute（AbstractHttpClient.java:465） 05-24 08：20：32.550：E / ConnectionHelper（1129）：at com.d_apps.my_app.connection_helpers.ConnectionHelper $ httpGETTask.doInBackground（ConnectionHelper.java:114）

Answer 1

以下来源应该可以解决您的问题。

import android.app.Activity;
import android.widget.EditText;
import android.os.Bundle;
import org.apache.http.HttpResponse;
import org.apache.http.Header
import java.io.InputStream;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import android.util.Log;
import android.view.Menu;
public class MainActivity extends Activity {

    private EditText text;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        text = (EditText) findViewById(R.id.editText1);
        connect();
    }

    private void connect(){
        try {
            DataLoader dl = new DataLoader();
            String url = "https://IpAddress";
            HttpResponse response = dl.secureLoadData(url); 

            StringBuilder sb = new StringBuilder();
            sb.append("HEADERS:\n\n");

            Header[] headers = response.getAllHeaders();
            for (int i = 0; i < headers.length; i++) {
                Header h = headers[i];
                sb.append(h.getName()).append(":\t").append(h.getValue()).append("\n");
            }

            InputStream is = response.getEntity().getContent();
            StringBuilder out = new StringBuilder();
            BufferedReader br = new BufferedReader(new InputStreamReader(is));
            for (String line = br.readLine(); line != null; line = br.readLine())
                out.append(line);
            br.close();

            sb.append("\n\nCONTENT:\n\n").append(out.toString()); 

            Log.i("response", sb.toString());
            text.setText(sb.toString());

        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}


import android.app.Application;
import android.content.Context;
import java.io.InputStream;
public class MeaApplication extends Application {

    private static Context context;

    @Override
    public void onCreate() {
        super.onCreate();
        MeaApplication.context = getApplicationContext();
    }

    public static Context getAppContext() {
        return MeaApplication.context;
    }

    public static InputStream loadCertAsInputStream() {
        return MeaApplication.context.getResources().openRawResource(
                R.raw.meacert);
    }

}


import org.apache.http.conn.ssl.SSLSocketFactory;
import javax.net.ssl.SSLContext;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.KeyManagementException;
import java.security.KeyStoreException;
import java.security.UnrecoverableKeyException;
import javax.net.ssl.TrustManager;
import java.net.Socket;
import java.io.IOException;
import java.net.UnknownHostException;
/**
 * Taken from: http://janis.peisenieks.lv/en/76/english-making-an-ssl-connection-via-android/
 *
 */
public class CustomSSLSocketFactory extends SSLSocketFactory {
    SSLContext sslContext = SSLContext.getInstance("TLS");

    public CustomSSLSocketFactory(KeyStore truststore)
            throws NoSuchAlgorithmException, KeyManagementException,
            KeyStoreException, UnrecoverableKeyException {
        super(truststore);

        TrustManager tm = new CustomX509TrustManager();

        sslContext.init(null, new TrustManager[] { tm }, null);
    }

    public CustomSSLSocketFactory(SSLContext context)
            throws KeyManagementException, NoSuchAlgorithmException,
            KeyStoreException, UnrecoverableKeyException {
        super(null);
        sslContext = context;
    }

    @Override
    public Socket createSocket(Socket socket, String host, int port,
            boolean autoClose) throws IOException, UnknownHostException {
        return sslContext.getSocketFactory().createSocket(socket, host, port,
                autoClose);
    }

    @Override
    public Socket createSocket() throws IOException {
        return sslContext.getSocketFactory().createSocket();
    }
}


import javax.net.ssl.X509TrustManager;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.io.IOException;
import java.io.InputStream;
import java.security.cert.CertificateFactory;
public class CustomX509TrustManager implements X509TrustManager {

    @Override
    public void checkClientTrusted(X509Certificate[] chain, String authType)
            throws CertificateException {
    }

    @Override
    public void checkServerTrusted(java.security.cert.X509Certificate[] certs,
            String authType) throws CertificateException {

        // Here you can verify the servers certificate. (e.g. against one which is stored on mobile device)

        // InputStream inStream = null;
        // try {
        // inStream = MeaApplication.loadCertAsInputStream();
        // CertificateFactory cf = CertificateFactory.getInstance("X.509");
        // X509Certificate ca = (X509Certificate)
        // cf.generateCertificate(inStream);
        // inStream.close();
        //
        // for (X509Certificate cert : certs) {
        // // Verifing by public key
        // cert.verify(ca.getPublicKey());
        // }
        // } catch (Exception e) {
        // throw new IllegalArgumentException("Untrusted Certificate!");
        // } finally {
        // try {
        // inStream.close();
        // } catch (IOException e) {
        // e.printStackTrace();
        // }
        // }
    }

    public X509Certificate[] getAcceptedIssuers() {
        return null;
    }

}


import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.KeyManagementException;
import java.net.URISyntaxException;
import java.security.KeyStoreException;
import java.security.UnrecoverableKeyException;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import java.security.SecureRandom;
import org.apache.http.client.HttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.client.methods.HttpGet;
public class DataLoader {

    public HttpResponse secureLoadData(String url)
            throws ClientProtocolException, IOException,
            NoSuchAlgorithmException, KeyManagementException,
            URISyntaxException, KeyStoreException, UnrecoverableKeyException {
        SSLContext ctx = SSLContext.getInstance("TLS");
        ctx.init(null, new TrustManager[] { new CustomX509TrustManager() },
                new SecureRandom());

        HttpClient client = new DefaultHttpClient();

        SSLSocketFactory ssf = new CustomSSLSocketFactory(ctx);
        ssf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
        ClientConnectionManager ccm = client.getConnectionManager();
        SchemeRegistry sr = ccm.getSchemeRegistry();
        sr.register(new Scheme("https", ssf, 443));
        DefaultHttpClient sslClient = new DefaultHttpClient(ccm,
                client.getParams());

        HttpGet get = new HttpGet(new URI(url));
        HttpResponse response = sslClient.execute(get);

        return response;
    }

}

Answer 2

如果您使用的是“Not Trusted”（开发人员）证书，则以下是解决方案。我们需要信任所有证书，下面是这样做的方法。对于可信证书，它可以在不添加以下功能的情况下工作，我们只需将http更改为https即可。

以下是不受信任证书的解决方案。

在HttpClient方式中，您应该从org.apache.http.conn.ssl.SSLSocketFactory创建一个自定义类，而不是一个org.apache.http.conn.ssl.SSLSocketFactory本身

示例就像......

import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

import org.apache.http.conn.ssl.SSLSocketFactory;
public class MySSLSocketFactory extends SSLSocketFactory {
    SSLContext sslContext = SSLContext.getInstance("TLS");

    public MySSLSocketFactory(KeyStore truststore) throws NoSuchAlgorithmException, KeyManagementException, KeyStoreException, UnrecoverableKeyException {
        super(truststore);

        TrustManager tm = new X509TrustManager() {
            public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }

            public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
            }

            public X509Certificate[] getAcceptedIssuers() {
                return null;
            }
        };

        sslContext.init(null, new TrustManager[] { tm }, null);
    }

    @Override
    public Socket createSocket(Socket socket, String host, int port, boolean autoClose) throws IOException, UnknownHostException {
        return sslContext.getSocketFactory().createSocket(socket, host, port, autoClose);
    }

    @Override
    public Socket createSocket() throws IOException {
        return sslContext.getSocketFactory().createSocket();
    }
}

并在创建HttpClient实例时使用此类。

public HttpClient getNewHttpClient() {
    try {
        KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
        trustStore.load(null, null);

        SSLSocketFactory sf = new MySSLSocketFactory(trustStore);
        sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

        HttpParams params = new BasicHttpParams();
        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
        HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);

        SchemeRegistry registry = new SchemeRegistry();
        registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
        registry.register(new Scheme("https", sf, 443));

        ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);

        return new DefaultHttpClient(ccm, params);
    } catch (Exception e) {
        return new DefaultHttpClient();
    }
}

Answer 3

检查设备的日期。您可能已将其更改为其他年份。当孩子们使用我的手机时，我经常会遇到这个问题。

Answer 4

如果您可以使用受信任的证书访问服务器，那么更好的解决方案是正确配置SSL，因为Android更加局限于关于SSL验证的iOS和桌面浏览器

此解决方案不需要对您的Android应用程序进行任何更改，因此它更干净。

以下是apache的示例SSL配置（将其添加到您的VirtualHost定义，例如/ etc / apache2 / sites-enabled）

SSLEngine on
SSLCertificateFile    YOUR_CERT_PATH
SSLCACertificateFile  CA_ROOT_CERT_PATH
SSLCertificateKeyFile KEY_PATH

我有同样的错误，当我添加CA根证书时，错误消失了，android也不再抱怨了。为这些文件提供正确的路径，重新启动Apache并再次测试。

CA根证书的文件可以包含根证书和中间证书

您可以使用this site测试您的SSL配置，并确保在认证路径下的结果中，服务器正在发送所有必需的证书。

Answer 5

在搜索此异常时，您只需获得实施建议＆＃34;允许所有证书＆＃34;。

SSLPeerUnverifiedException的javadoc指出：

当对等方无法识别自身时（例如，没有证书，正在使用的特定密码套件不支持身份验证，或者在SSL握手期间未建立对等身份验证），将抛出此异常。

所以错误可能是连接太脆弱/不稳定，请求需要花费大量时间。在我们的移动应用程序中，我们有时会遇到很多连接/套接字超时以及这些SSLPeerUnverifiedException。有些请求可以通过，但需要60秒+ - 在这些情况下，网络连接简直太糟糕了。

只需通过＆＃34强制执行此操作;允许所有证书＆＃34;在这种情况下是不可取的 - 而是实施适当的重试策略。

Answer 6

允许Android安全提供商在启动您的应用时进行更新。

5.0+之前的默认提供程序不会禁用SSLv3。如果您可以访问Google Play服务，则从您的应用中修补Android安全提供程序相对简单。

  private void updateAndroidSecurityProvider(Activity callingActivity) {
    try {
        ProviderInstaller.installIfNeeded(this);
    } catch (GooglePlayServicesRepairableException e) {
      // Thrown when Google Play Services is not installed, up-to-date, or  enabled
        // Show dialog to allow users to install, update, or otherwise    enable Google Play services.
       GooglePlayServicesUtil.getErrorDialog(e.getConnectionStatusCode(), callingActivity, 0);
    } catch (GooglePlayServicesNotAvailableException e) {
        Log.e("SecurityException", "Google Play Services not available.");
    }
}

来源： Patching the Security Provider with ProviderInstaller Provider

Answer 7

我最初使用的是HttpsURLConnection，但它并非始终如一，所以我决定选择HttpClient。它现在有效。

Android SSL HttpGet（无对等证书）错误或（对等关闭连接）错误

7 个答案: