001/* 002 * oauth2-oidc-sdk 003 * 004 * Copyright 2012-2016, Connect2id Ltd and contributors. 005 * 006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use 007 * this file except in compliance with the License. You may obtain a copy of the 008 * License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software distributed 013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the 015 * specific language governing permissions and limitations under the License. 016 */ 017 018package com.nimbusds.oauth2.sdk.util; 019 020 021import javax.mail.internet.ContentType; 022 023import com.nimbusds.oauth2.sdk.ParseException; 024 025 026/** 027 * Content type matching. 028 */ 029public final class ContentTypeUtils { 030 031 032 /** 033 * Ensures the content type of an HTTP header matches an expected 034 * value. Note that this method compares only the primary type and 035 * subtype; any content type parameters, such as {@code charset}, are 036 * ignored. 037 * 038 * @param expected The expected content type. Must not be {@code null}. 039 * @param found The found content type. May be {@code null}. 040 * 041 * @throws ParseException If the found content type is {@code null} or 042 * it primary and subtype and doesn't match the 043 * expected. 044 */ 045 public static void ensureContentType(final ContentType expected, final ContentType found) 046 throws ParseException { 047 048 if (found == null) 049 throw new ParseException("Missing HTTP Content-Type header"); 050 051 if (! expected.match(found)) 052 throw new ParseException("The HTTP Content-Type header must be " + expected); 053 } 054 055 056 /** 057 * Prevents public instantiation. 058 */ 059 private ContentTypeUtils() {} 060}