Created
December 3, 2014 13:37
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OkHttp DigestAuthenticator
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| import android.util.Log; | |
| import com.squareup.okhttp.Request; | |
| import com.squareup.okhttp.Response; | |
| import org.apache.http.auth.AuthenticationException; | |
| import org.apache.http.auth.Credentials; | |
| import org.apache.http.auth.MalformedChallengeException; | |
| import org.apache.http.impl.auth.DigestScheme; | |
| import org.apache.http.message.BasicHeader; | |
| import org.apache.http.message.BasicHttpRequest; | |
| import java.io.IOException; | |
| import java.net.Proxy; | |
| import javax.inject.Inject; | |
| public class DigestAuthenticator implements com.squareup.okhttp.Authenticator { | |
| @Inject DigestScheme mDigestScheme; | |
| @Inject org.apache.http.auth.Credentials mCredentials; | |
| public DigestAuthenticator(Credentials credentials) { | |
| mCredentials = credentials; | |
| mDigestScheme = new DigestScheme(); | |
| } | |
| @Override | |
| public Request authenticate(Proxy proxy, Response response) throws IOException { | |
| String authHeader = buildAuthorizationHeader(response); | |
| if (authHeader == null) { | |
| return null; | |
| } | |
| return response.request().newBuilder().addHeader("Authorization", authHeader).build(); | |
| } | |
| @Override | |
| public Request authenticateProxy(Proxy proxy, Response response) throws IOException { | |
| return null; | |
| } | |
| private String buildAuthorizationHeader(Response response) throws IOException { | |
| processChallenge("WWW-Authenticate", response.header("WWW-Authenticate")); | |
| return generateDigestHeader(response); | |
| } | |
| private void processChallenge(String headerName, String headerValue) { | |
| try { | |
| mDigestScheme.processChallenge(new BasicHeader(headerName, headerValue)); | |
| } catch (MalformedChallengeException e) { | |
| Log.e(e.toString(), "Error processing header " + headerName + " for DIGEST authentication."); | |
| } | |
| } | |
| private String generateDigestHeader(Response response) throws IOException { | |
| org.apache.http.HttpRequest request = new BasicHttpRequest( | |
| response.request().method(), | |
| response.request().uri().toString() | |
| ); | |
| try { | |
| return mDigestScheme.authenticate(mCredentials, request).getValue(); | |
| } catch (AuthenticationException e) { | |
| Log.e(e.toString(), "Error generating DIGEST auth header."); | |
| return null; | |
| } | |
| } | |
| } |
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