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• AuthenticationServiceImpl.java

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com.hp.autonomy.hod.client.api.authentication.AuthenticationServiceImpl Maven / Gradle / Ivy

/*
 * Copyright 2015-2016 Hewlett-Packard Development Company, L.P.
 * Licensed under the MIT License (the "License"); you may not use this file except in compliance with the License.
 */

package com.hp.autonomy.hod.client.api.authentication;

import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.hp.autonomy.hod.client.api.authentication.tokeninformation.ApplicationTokenInformation;
import com.hp.autonomy.hod.client.api.authentication.tokeninformation.CombinedTokenInformation;
import com.hp.autonomy.hod.client.api.authentication.tokeninformation.DeveloperTokenInformation;
import com.hp.autonomy.hod.client.api.authentication.tokeninformation.UnboundTokenInformation;
import com.hp.autonomy.hod.client.api.authentication.tokeninformation.UserTokenInformation;
import com.hp.autonomy.hod.client.config.HodServiceConfig;
import com.hp.autonomy.hod.client.error.HodErrorException;
import com.hp.autonomy.hod.client.token.TokenProxy;
import com.hp.autonomy.hod.client.token.TokenRepository;
import com.hp.autonomy.hod.client.token.TokenRepositoryException;
import com.hp.autonomy.hod.client.util.Hmac;
import com.hp.autonomy.hod.client.util.Request;
import retrofit.client.Response;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

/**
 * Default implementation of {@link AuthenticationService}
 */
public class AuthenticationServiceImpl implements AuthenticationService {
    private static final String COMBINED_PATH = "/2/authenticate/combined";
    private static final String ALLOWED_ORIGINS = "allowed_origins";

    private static final Request TOKEN_INFORMATION_REQUEST = new Request<>(Request.Verb.GET, AuthenticationBackend.GET_TOKEN_INFORMATION_PATH, null, null);

    private static final TypeReference> TOKEN_TYPE_REFERENCE = new TypeReference>() {};
    private static final TypeReference> DEVELOPER_INFORMATION_TYPE = new TypeReference>() {};
    private static final TypeReference> COMBINED_INFORMATION_TYPE = new TypeReference>() {};
    private static final TypeReference> USER_INFORMATION_TYPE = new TypeReference>() {};
    private static final TypeReference> UNBOUND_INFORMATION_TYPE = new TypeReference>() {};
    private static final TypeReference> APPLICATION_INFORMATION_TYPE = new TypeReference>() {};

    private final AuthenticationBackend authenticationBackend;
    private final TokenRepository tokenRepository;
    private final ObjectMapper objectMapper;
    private final String endpoint;

    private final Hmac hmac = new Hmac();

    /**
     * Creates a new AuthenticationServiceImpl with the given configuration
     * @param hodServiceConfig The configuration to use
     */
    public AuthenticationServiceImpl(final HodServiceConfig hodServiceConfig) {
        authenticationBackend = hodServiceConfig.getRestAdapter().create(AuthenticationBackend.class);
        tokenRepository = hodServiceConfig.getTokenRepository();
        endpoint = hodServiceConfig.getEndpoint();
        objectMapper = hodServiceConfig.getObjectMapper();
    }

    @Override
    public  TokenProxy authenticateApplication(
        final ApiKey apiKey,
        final String applicationName,
        final String domain,
        final T tokenType
    ) throws HodErrorException {
        final Response response = authenticationBackend.authenticateApplication(apiKey, applicationName, domain, tokenType.getParameter());
        final AuthenticationToken token = parseToken(response, EntityType.Application.INSTANCE, tokenType);
        return insertToken(token);
    }

    @Override
    public AuthenticationToken authenticateDeveloper(final ApiKey apiKey, final UUID tenantUuid, final String email) throws HodErrorException {
        final Response response = authenticationBackend.authenticateDeveloper(apiKey, tenantUuid.toString(), email);
        return parseToken(response, EntityType.Developer.INSTANCE, TokenType.HmacSha1.INSTANCE);
    }

    @Override
    public  AuthenticationToken authenticateUnbound(final ApiKey apiKey, final T tokenType) throws HodErrorException {
        final Response response = authenticationBackend.authenticateUnbound(apiKey, tokenType.getParameter());
        return parseToken(response, EntityType.Unbound.INSTANCE, tokenType);
    }

    @Override
    public CombinedTokenInformation getCombinedTokenInformation(final AuthenticationToken token) throws HodErrorException {
        final Response response = authenticationBackend.getTokenInformation(token.toString());
        return parseTokenInformation(response, COMBINED_INFORMATION_TYPE);
    }

    @Override
    public CombinedTokenInformation getHmacCombinedTokenInformation(final AuthenticationToken token) throws HodErrorException {
        final Response response = authenticationBackend.getTokenInformation(hmac.generateToken(TOKEN_INFORMATION_REQUEST, token));
        return parseTokenInformation(response, COMBINED_INFORMATION_TYPE);
    }

    @Override
    public DeveloperTokenInformation getDeveloperTokenInformation(final AuthenticationToken token) throws HodErrorException {
        final Response response = authenticationBackend.getTokenInformation(hmac.generateToken(TOKEN_INFORMATION_REQUEST, token));
        return parseTokenInformation(response, DEVELOPER_INFORMATION_TYPE);
    }

    @Override
    public ApplicationTokenInformation getApplicationTokenInformation(final TokenProxy tokenProxy) throws HodErrorException {
        final AuthenticationToken token = getToken(tokenProxy);

        final Response response = authenticationBackend.getTokenInformation(token.toString());
        return parseTokenInformation(response, APPLICATION_INFORMATION_TYPE);
    }

    @Override
    public ApplicationTokenInformation getHmacApplicationTokenInformation(final TokenProxy tokenProxy) throws HodErrorException {
        final AuthenticationToken token = getToken(tokenProxy);

        final Response response = authenticationBackend.getTokenInformation(hmac.generateToken(TOKEN_INFORMATION_REQUEST, token));
        return parseTokenInformation(response, APPLICATION_INFORMATION_TYPE);
    }

    @Override
    public UserTokenInformation getUserTokenInformation(final TokenProxy tokenProxy) throws HodErrorException {
        final AuthenticationToken token = getToken(tokenProxy);

        final Response response = authenticationBackend.getTokenInformation(token.toString());
        return parseTokenInformation(response, USER_INFORMATION_TYPE);
    }

    @Override
    public UserTokenInformation getHmacUserTokenInformation(final TokenProxy tokenProxy) throws HodErrorException {
        final AuthenticationToken token = getToken(tokenProxy);

        final Response response = authenticationBackend.getTokenInformation(hmac.generateToken(TOKEN_INFORMATION_REQUEST, token));
        return parseTokenInformation(response, USER_INFORMATION_TYPE);
    }

    @Override
    public UnboundTokenInformation getUnboundTokenInformation(final AuthenticationToken token) throws HodErrorException {
        final Response response = authenticationBackend.getTokenInformation(token.toString());
        return parseTokenInformation(response, UNBOUND_INFORMATION_TYPE);
    }

    @Override
    public UnboundTokenInformation getHmacUnboundTokenInformation(final AuthenticationToken token) throws HodErrorException {
        final Response response = authenticationBackend.getTokenInformation(hmac.generateToken(TOKEN_INFORMATION_REQUEST, token));
        return parseTokenInformation(response, UNBOUND_INFORMATION_TYPE);
    }

    @Override
    public SignedRequest combinedGetRequest(final Collection allowedOrigins, final AuthenticationToken token) {
        final Map> queryParameters = new HashMap<>();
        queryParameters.put(ALLOWED_ORIGINS, new ArrayList<>(allowedOrigins));

        final Request request = new Request<>(Request.Verb.GET, COMBINED_PATH, queryParameters, null);
        return SignedRequest.sign(hmac, endpoint, token, request);
    }

    @Override
    public SignedRequest combinedRequest(
        final Collection allowedOrigins,
        final AuthenticationToken token,
        final String applicationDomain,
        final String applicationName,
        final TokenType tokenType
    ) {
        final Map> body = createBaseCombinedBody(applicationName, applicationDomain, tokenType);
        return createCombinedRequest(token, allowedOrigins, body);
    }

    @Override
    public SignedRequest combinedRequest(
        final Collection allowedOrigins,
        final AuthenticationToken token,
        final String applicationDomain,
        final String applicationName,
        final String userStoreDomain,
        final String userStoreName,
        final TokenType tokenType
    ) {
        final Map> body = createUserStoreCombinedBody(applicationName, applicationDomain, tokenType, userStoreDomain, userStoreName);
        return createCombinedRequest(token, allowedOrigins, body);
    }

    @Override
    public SignedRequest combinedRequest(
        final Collection allowedOrigins,
        final AuthenticationToken token,
        final String applicationDomain,
        final String applicationName,
        final String userStoreDomain,
        final String userStoreName,
        final TokenType tokenType,
        final boolean useNonce
    ) {
        final Map> body = createUserStoreCombinedBody(applicationName, applicationDomain, tokenType, userStoreDomain, userStoreName);

        if (useNonce) {
            final String nonce = UUID.randomUUID().toString();
            body.put("nonce", Collections.singletonList(nonce));
        }

        return createCombinedRequest(token, allowedOrigins, body);
    }

    private SignedRequest createCombinedRequest(
        final AuthenticationToken token,
        final Collection allowedOrigins,
        final Map> body
    ) {
        final Map> queryParameters = new HashMap<>();
        queryParameters.put(ALLOWED_ORIGINS, new ArrayList<>(allowedOrigins));

        final Request request = new Request<>(Request.Verb.POST, COMBINED_PATH, queryParameters, body);
        return SignedRequest.sign(hmac, endpoint, token, request);
    }

    private Map> createBaseCombinedBody(
        final String applicationName,
        final String applicationDomain,
        final TokenType tokenType
    ) {
        final Map> body = new HashMap<>();
        body.put("domain", Collections.singletonList(applicationDomain));
        body.put("application", Collections.singletonList(applicationName));
        body.put("token_type", Collections.singletonList(tokenType.getParameter()));
        return body;
    }

    private Map> createUserStoreCombinedBody(
        final String applicationName,
        final String applicationDomain,
        final TokenType tokenType,
        final String userStoreDomain,
        final String userStoreName
    ) {
        final Map> body = createBaseCombinedBody(applicationName, applicationDomain, tokenType);
        body.put("userstore_domain", Collections.singletonList(userStoreDomain));
        body.put("userstore_name", Collections.singletonList(userStoreName));
        return body;
    }

    private  TokenProxy insertToken(final AuthenticationToken token) {
        try {
            return tokenRepository.insert(token);
        } catch (final IOException e) {
            throw new TokenRepositoryException(e);
        }
    }

    private  AuthenticationToken getToken(final TokenProxy tokenProxy) {
        try {
            return tokenRepository.get(tokenProxy);
        } catch (final IOException e) {
            throw new TokenRepositoryException(e);
        }
    }

    private  AuthenticationToken parseToken(final Response response, final E entityType, final T tokenType) {
        try {
            final TokenResponse tokenResponse = objectMapper.readValue(response.getBody().in(), TOKEN_TYPE_REFERENCE);
            return tokenResponse.getToken().buildToken(entityType, tokenType);
        } catch (final IOException e) {
            throw new RuntimeException(e);
        }
    }

    private  T parseTokenInformation(final Response response, final TypeReference> typeReference) {
        try {
            final TokenResponse tokenResponse = objectMapper.readValue(response.getBody().in(), typeReference);
            return tokenResponse.getToken();
        } catch (final IOException e) {
            throw new RuntimeException(e);
        }
    }
}