Okhttp 액세스 https 12306
17171 단어 android네트워킹android 진급의 길
HTTPUtils utils = new HTTPUtils(getApplicationContext);
OkHttpClient client = utils.getInstance();
조작이 필요한 인터페이스에서client 대상을 얻으면 12306에 접근할 수 있습니다.
HTTPS에 대해서는 다음 기사를 참조하십시오.
OKHTTP 통신 사용(3) HTTPS
Android Https 관련 전체 분석
package utils;
import android.content.Context;
import java.io.IOException;
import java.io.InputStream;
import java.security.GeneralSecurityException;
import java.security.KeyStore;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.util.Arrays;
import java.util.Collection;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
import okhttp3.OkHttpClient;
/**
* https
*/
public final class HTTPSUtils {
public OkHttpClient client = null;
public Context mContext;
public static HTTPSUtils httpsUtils = null;
X509TrustManager trustManager;
SSLSocketFactory sslSocketFactory;
/**
* HTTPS,
*
* @param context
*/
public HTTPSUtils(Context context) {
mContext = context;
final InputStream inputStream;
try {
// assets 12306
inputStream = mContext.getAssets().open("srca.cer"); //
try {
trustManager = trustManagerForCertificates(inputStream);//
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, new TrustManager[]{trustManager}, null);
sslSocketFactory = sslContext.getSocketFactory();
} catch (GeneralSecurityException e) {
throw new RuntimeException(e);
}
client = new OkHttpClient.Builder().sslSocketFactory(sslSocketFactory).build();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* ssl okhttpclient， https
*
* @param context
* @return okhttpclient
*/
public OkHttpClient getInstance(Context context) {
if (client == null) {
httpsUtils = new HTTPSUtils(context);
if (httpsUtils.client != null) {
return httpsUtils.client;
}
}
return client;
}
/**
*
*/
/**
* Returns a trust manager that trusts {@code certificates} and none other. HTTPS services whose
* certificates have not been signed by these certificates will fail with a {@code
* SSLHandshakeException}.
*
* This can be used to replace the host platform's built-in trusted certificates with a custom
* set. This is useful in development where certificate authority-trusted certificates aren't
* available. Or in production, to avoid reliance on third-party certificate authorities.
*
*
* Warning: Customizing Trusted Certificates is Dangerous!
*
* Relying on your own trusted certificates limits your server team's ability to update their
* TLS certificates. By installing a specific set of trusted certificates, you take on additional
* operational complexity and limit your ability to migrate between certificate authorities. Do
* not use custom trusted certificates in production without the blessing of your server's TLS
* administrator.
*/
private X509TrustManager trustManagerForCertificates(InputStream in)
throws GeneralSecurityException {
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
Collection extends Certificate> certificates = certificateFactory.generateCertificates(in);
if (certificates.isEmpty()) {
throw new IllegalArgumentException("expected non-empty set of trusted certificates");
}
// Put the certificates a key store.
char[] password = "password".toCharArray(); // Any password will work.
KeyStore keyStore = newEmptyKeyStore(password);
int index = 0;
for (Certificate certificate : certificates) {
String certificateAlias = Integer.toString(index++);
keyStore.setCertificateEntry(certificateAlias, certificate);
}
// Use it to build an X509 trust manager.
KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(
KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(keyStore, password);
TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(
TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(keyStore);
TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
if (trustManagers.length != 1 || !(trustManagers[0] instanceof X509TrustManager)) {
throw new IllegalStateException("Unexpected default trust managers:"
+ Arrays.toString(trustManagers));
}
return (X509TrustManager) trustManagers[0];
}
/**
* password
*
* @param password
* @return
* @throws GeneralSecurityException
*/
private KeyStore newEmptyKeyStore(char[] password) throws GeneralSecurityException {
try {
KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); // ，
InputStream in = null; // By convention, 'null' creates an empty key store.
keyStore.load(in, password);
return keyStore;
} catch (IOException e) {
throw new AssertionError(e);
}
}
}
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