/*
 * Copyright 2013 Agorava
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.agorava.helpers;

import org.agorava.helpers.signatures.RSASha1SignatureService;
import org.junit.Test;

import javax.xml.bind.DatatypeConverter;
import java.security.KeyFactory;
import java.security.PrivateKey;
import java.security.spec.PKCS8EncodedKeySpec;

import static org.junit.Assert.assertEquals;

public class RSASha1SignatureServiceTest {

    RSASha1SignatureService service = new RSASha1SignatureService(getPrivateKey());

    @Test
    public void shouldReturnSignatureMethodString() {
        String expected = "RSA-SHA1";
        assertEquals(expected, service.getSignatureMethod());
    }

    @Test
    public void shouldReturnSignature() {
        String apiSecret = "api secret";
        String tokenSecret = "token secret";
        String baseString = "base string";
        String signature = "LUNRzQAlpdNyM9mLXm96Va6g/qVNnEAb7p7K1KM0g8IopOFQJPoOO7cvppgt7w3QyhijWJnCmvqXaaIAGrqvdyr3fIzBULh8D" +
                "/iZQUNLMi08GCOA34P81XBvsc7A5uJjPDsGhJg2MzoVJ8nWJhU/lMMk4c92S1WGskeoDofRwpo=";
        assertEquals(signature, service.getSignature(baseString, apiSecret, tokenSecret));
    }

    /**
     * Created primary key using openssl.
     * <p/>
     * openssl req -x509 -nodes -days 365 -newkey rsa:1024 -sha1 -subj   '/C=GB/ST=/L=Manchester/CN=www.example.com' -keyout
     * myrsakey.pem -out /tmp/myrsacert.pem
     * openssl pkcs8 -in myrsakey.pem -topk8 -nocrypt -out myrsakey.pk8
     */
    private static PrivateKey getPrivateKey() {
        String str = "MIICdgIBADANBgkqhkiG9w0BAQEFAASCAmAwggJcAgEAAoGBAMPQ5BCMxlUq2TYy\n" +
                "iRIoEUsz6HGTJhHuasS2nx1Se4Co3lxwxyubVdFj8AuhHNJSmJvjlpbTsGOjLZpr\n" +
                "HyDEDdJmf1Fensh1MhUnBZ4a7uLrZrKzFHHJdamX9pxapB89vLeHlCot9hVXdrZH\n" +
                "nNtg6FdmRKH/8gbs8iDyIayFvzYDAgMBAAECgYA+c9MpTBy9cQsR9BAvkEPjvkx2\n" +
                "XL4ZnfbDgpNA4Nuu7yzsQrPjPomiXMNkkiAFHH67yVxwAlgRjyuuQlgNNTpKvyQt\n" +
                "XcHxffnU0820VmE23M+L7jg2TlB3+rUnEDmDvCoyjlwGDR6lNb7t7Fgg2iR+iaov\n" +
                "0iVzz+l9w0slRlyGsQJBAPWXW2m3NmFgqfDxtw8fsKC2y8o17/cnPjozRGtWb8LQ\n" +
                "g3VCb8kbOFHOYNGazq3M7+wD1qILF2h/HecgK9eQrZ0CQQDMHXoJMfKKbrFrTKgE\n" +
                "zyggO1gtuT5OXYeFewMEb5AbDI2FfSc2YP7SHij8iQ2HdukBrbTmi6qxh3HmIR58\n" +
                "I/AfAkEA0Y9vr0tombsUB8cZv0v5OYoBZvCTbMANtzfb4AOHpiKqqbohDOevLQ7/\n" +
                "SpvgVCmVaDz2PptcRAyEBZ5MCssneQJAB2pmvaDH7Ambfod5bztLfOhLCtY5EkXJ\n" +
                "n6rZcDbRaHorRhdG7m3VtDKOUKZ2DF7glkQGV33phKukErVPUzlHBwJAScD9TqaG\n" +
                "wJ3juUsVtujV23SnH43iMggXT7m82STpPGam1hPfmqu2Z0niePFo927ogQ7H1EMJ\n" +
                "UHgqXmuvk2X/Ww==";

        try {
            KeyFactory fac = KeyFactory.getInstance("RSA");
            PKCS8EncodedKeySpec privKeySpec = new PKCS8EncodedKeySpec(DatatypeConverter.parseBase64Binary(str));
            return fac.generatePrivate(privKeySpec);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}