com.microsoft.aad.adal4j.AdalOAuthRequest Maven / Gradle / Ivy

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Azure active directory library for Java gives you the ability to add Windows Azure Active Directory authentication to your web application with just a few lines of additional code. Using our ADAL SDKs you can quickly and easily extend your existing application to all the employees that use Windows Azure AD and Active Directory on-premises using Active Directory Federation Services, including Office365 customers.
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// Copyright (c) Microsoft Corporation.
// All rights reserved.
//
// This code is licensed under the MIT License.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files(the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package com.microsoft.aad.adal4j;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSocketFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.Proxy;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Collections;
import java.util.Map;

import com.nimbusds.oauth2.sdk.ParseException;
import com.nimbusds.oauth2.sdk.http.CommonContentTypes;
import com.nimbusds.oauth2.sdk.http.HTTPRequest;
import com.nimbusds.oauth2.sdk.http.HTTPResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class AdalOAuthRequest extends HTTPRequest {

    private final Map extraHeaderParams;
    private final Logger log = LoggerFactory.getLogger(AdalOAuthRequest.class);

    private final Proxy proxy;
    private final SSLSocketFactory sslSocketFactory;

    /**
     * 
     * @param method
     * @param url
     */
    AdalOAuthRequest(final Method method, final URL url,
            final Map extraHeaderParams, final Proxy proxy,
            final SSLSocketFactory sslSocketFactory) {
        super(method, url);
        this.extraHeaderParams = extraHeaderParams;
        this.proxy = proxy;
        this.sslSocketFactory = sslSocketFactory;
    }

    Map getReadOnlyExtraHeaderParameters() {
        return Collections.unmodifiableMap(this.extraHeaderParams);
    }

    /**
     * 
     */
    @Override
    public HTTPResponse send() throws IOException {

        final HttpsURLConnection conn = HttpHelper.openConnection(this.getURL(),
                this.proxy, this.sslSocketFactory);
        this.configureHeaderAndExecuteOAuthCall(conn);
        final String out = this.processAndReadResponse(conn);
        HttpHelper.verifyReturnedCorrelationId(log, conn,
                this.extraHeaderParams
                        .get(ClientDataHttpHeaders.CORRELATION_ID_HEADER_NAME));
        return createResponse(conn, out);
    }

    HTTPResponse createResponse(final HttpURLConnection conn, final String out)
            throws IOException {
        final HTTPResponse response = new HTTPResponse(conn.getResponseCode());
        final String location = conn.getHeaderField("Location");
        if (!StringHelper.isBlank(location)) {
            try {
                response.setLocation(new URI(location));
            } catch (URISyntaxException e) {
                throw new IOException("Invalid location URI " + location, e);
            }
        }

        try {
            response.setContentType(conn.getContentType());
        }
        catch (final ParseException e) {
            throw new IOException("Couldn't parse Content-Type header: "
                    + e.getMessage(), e);
        }

        response.setCacheControl(conn.getHeaderField("Cache-Control"));
        response.setPragma(conn.getHeaderField("Pragma"));
        response.setWWWAuthenticate(conn.getHeaderField("WWW-Authenticate"));
        if (!StringHelper.isBlank(out)) {
            response.setContent(out);
        }
        return response;
    }

    void configureHeaderAndExecuteOAuthCall(final HttpsURLConnection conn)
            throws IOException {

        if (this.getAuthorization() != null) {
            conn.setRequestProperty("Authorization", this.getAuthorization());
        }

        Map params = new java.util.HashMap<>();
        if (this.extraHeaderParams != null && !this.extraHeaderParams.isEmpty()) {
            for (java.util.Map.Entry entry : this.extraHeaderParams
                    .entrySet()) {
                if (entry.getValue() == null || entry.getValue().isEmpty()) {
                    continue;
                }
                params.put(entry.getKey(), entry.getValue());
            }
        }

        HttpHelper.configureAdditionalHeaders(conn, params);
        conn.setDoOutput(true);
        conn.setRequestProperty("Content-Type",
                CommonContentTypes.APPLICATION_URLENCODED.toString());

        if (this.getQuery() != null) {
            try(final OutputStreamWriter writer = new OutputStreamWriter(
                        conn.getOutputStream())) {
                writer.write(getQuery());
                writer.flush();
            }
        }
    }

    String processAndReadResponse(final HttpURLConnection conn)
            throws IOException {
        Reader inReader = null;
        final int responseCode = conn.getResponseCode();
        if (responseCode == 200) {
            inReader = new InputStreamReader(conn.getInputStream());
        }
        else {
            InputStream stream = conn.getErrorStream();
            if (stream == null && responseCode == 404) {
                stream = conn.getInputStream();
            }

            if (stream == null) {
                stream = conn.getInputStream();
            }

            inReader = new InputStreamReader(stream);
        }
        final BufferedReader reader = new BufferedReader(inReader);
        final char[] buffer = new char[256];
        final StringBuilder out = new StringBuilder();
        try {
            for (;;) {
                final int rsz = reader.read(buffer, 0, buffer.length);
                if (rsz < 0) {
                    break;
                }
                out.append(buffer, 0, rsz);
            }
        }
        finally {
            reader.close();
        }
        return out.toString();
    }
}