Android Add File Certificate To Retrofit 1.7

In current  project that you develop from the beginning you must be use the latest version of the library, for example library Retrofit.

In several case, you must be face a difficulty in Retrofit 1.7 how to add file certificate to Retrofit 1.7, right?

Because of this, i create this article and share my experience when i add file certificate to my apps using Retrofit 1.7

If you using Retrofit 1.7, make sure another support libraries are added, these libraries that i meant are :

compile 'com.squareup.okhttp:okhttp:2.0.0'
compile 'com.squareup.okio:okio:1.13.0'
compile 'com.squareup.okhttp:okhttp-urlconnection:2.0.0'

After that, write to the following code in your apps to adding file certificate to Retrofit 1.7 :

	Certificate ca = null;
	OkHttpClient okHttpClient = new OkHttpClient();
	try {
	CertificateFactory cf = CertificateFactory.getInstance("X.509");
	InputStream caInput = getApplicationContext().getResources().openRawResource(R.raw.your_file_cert);
	try {
	ca = cf.generateCertificate(caInput);
	if(BuildConfig.DEBUG){
	System.out.println("ca=" + ((X509Certificate) ca).getSubjectDN());
	}
	} finally {
	caInput.close();
	}
	} catch (Exception ex) {
	if(BuildConfig.DEBUG){
	Log.e("MEH", "Unable to load the certificate: " + ex.getMessage());
	}
	}
	try {
	String keyStoreType = KeyStore.getDefaultType();
	KeyStore keyStore = KeyStore.getInstance(keyStoreType);
	keyStore.load(null, null);
	keyStore.setCertificateEntry("ca", ca);
	String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
	TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
	tmf.init(keyStore);
	SSLContext sslContext = SSLContext.getInstance("SSL");
	sslContext.init( null, tmf.getTrustManagers(), null );
	okHttpClient.setSslSocketFactory(sslContext.getSocketFactory());
	} catch ( Exception ex ) {
	if(BuildConfig.DEBUG){
	Log.e("Log", "Unable to create the trust manager: " + ex.getMessage() );
	}
	}
	RestAdapter.Builder builder = new RestAdapter.Builder();
	builder.setEndpoint(Config.getUrl());
	if (!BuildConfig.DEBUG) {
	builder.setClient(new OkClient(okHttpClient));
	}
	builder.setLogLevel(BuildConfig.DEBUG ? RestAdapter.LogLevel.FULL : RestAdapter.LogLevel.NONE);
	builder.setLog(new AndroidLog("Log File : "));

view raw firecert.java hosted with ❤ by GitHub

Above is some code snippet in my project. I don't how the model of your code, but you can modify my code above and implement in your project. If you are using Retrofit 1.7, then my code will works in your project.

That's all about how to adding file Certificate to Retrofit 1.7, hope it helps and works in your project. Thank you.