org.hisp.dhis.util.HttpUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of dhis2-java-client Show documentation

DHIS 2 API client for Java.

There is a newer version: 2.0.4

package org.hisp.dhis.util;

import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Base64;

import org.apache.hc.client5.http.classic.methods.HttpUriRequestBase;
import org.apache.hc.core5.http.HttpHeaders;
import org.apache.hc.core5.net.URIBuilder;
import org.hisp.dhis.Dhis2Config;

public class HttpUtils
{
    /**
     * Returns a basic authentication string which is generated by prepending
     * "Basic " and Base64-encoding username:password.
     *
     * @param config the {@link Dhis2Config}.
     * @return the encoded string.
     */
    public static String getBasicAuthString( Dhis2Config config )
    {
        String value = config.getUsername() + ":" + config.getPassword();

        return "Basic " + Base64.getEncoder().encodeToString( value.getBytes() );
    }

    /**
     * Adds basic authentication to the given request using the Authorization header.
     *
     * @param request the {@link HttpUriRequestBase}.
     * @param config the {@link Dhis2Config}.
     * @param  class.
     * @return the request.
     */
    public static  T withBasicAuth( T request, Dhis2Config config )
    {
        request.setHeader( HttpHeaders.AUTHORIZATION, getBasicAuthString( config ) );
        return request;
    }

    /**
     * Builds on URI without throwing checked exceptions.
     *
     * @param uriBuilder the {@link URIBuilder}.
     * @return a {@link URI}.
     */
    public static URI build( URIBuilder uriBuilder )
    {
        try
        {
            return uriBuilder.build();
        }
        catch ( URISyntaxException ex )
        {
            throw new RuntimeException( ex );
        }
    }

    /**
     * Returns the string representing the given URI. The URI is decoded.
     *
     * @param uri the {@link URI}.
     * @return a URI string.
     */
    public static String asString( URI uri )
    {
        try
        {
            return URLDecoder.decode( uri.toString(), StandardCharsets.UTF_8.toString() );
        }
        catch ( UnsupportedEncodingException ex )
        {
            throw new RuntimeException( ex );
        }
    }
}