/* * Copyright 2014 The Netty Project * * The Netty Project licenses this file to you 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 io.netty.handler.codec.http2; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import io.netty.util.AsciiString; import org.junit.Before; import org.junit.Test; import static io.netty.handler.codec.http2.Http2CodecUtil.MAX_HEADER_LIST_SIZE; import static io.netty.handler.codec.http2.Http2CodecUtil.MIN_HEADER_LIST_SIZE; import static io.netty.handler.codec.http2.Http2HeadersEncoder.NEVER_SENSITIVE; import static io.netty.handler.codec.http2.Http2TestUtil.newTestEncoder; import static io.netty.handler.codec.http2.Http2TestUtil.randomBytes; import static io.netty.util.CharsetUtil.UTF_8; import static org.junit.Assert.assertEquals; import static org.junit.Assert.fail; /** * Tests for {@link DefaultHttp2HeadersDecoder}. */ public class DefaultHttp2HeadersDecoderTest { private DefaultHttp2HeadersDecoder decoder; @Before public void setup() { decoder = new DefaultHttp2HeadersDecoder(false); } @Test public void decodeShouldSucceed() throws Exception { ByteBuf buf = encode(b(":method"), b("GET"), b("akey"), b("avalue"), randomBytes(), randomBytes()); try { Http2Headers headers = decoder.decodeHeaders(0, buf); assertEquals(3, headers.size()); assertEquals("GET", headers.method().toString()); assertEquals("avalue", headers.get(new AsciiString("akey")).toString()); } finally { buf.release(); } } @Test(expected = Http2Exception.class) public void testExceedHeaderSize() throws Exception { final int maxListSize = 100; decoder.configuration().maxHeaderListSize(maxListSize, maxListSize); ByteBuf buf = encode(randomBytes(maxListSize), randomBytes(1)); try { decoder.decodeHeaders(0, buf); fail(); } finally { buf.release(); } } @Test public void decodeLargerThanHeaderListSizeButLessThanGoAway() throws Exception { decoder.maxHeaderListSize(MIN_HEADER_LIST_SIZE, MAX_HEADER_LIST_SIZE); ByteBuf buf = encode(b(":method"), b("GET")); final int streamId = 1; try { decoder.decodeHeaders(streamId, buf); fail(); } catch (Http2Exception.HeaderListSizeException e) { assertEquals(streamId, e.streamId()); } finally { buf.release(); } } @Test public void decodeLargerThanHeaderListSizeButLessThanGoAwayWithInitialDecoderSettings() throws Exception { ByteBuf buf = encode(b(":method"), b("GET"), b("test_header"), b(String.format("%09000d", 0).replace('0', 'A'))); final int streamId = 1; try { decoder.decodeHeaders(streamId, buf); fail(); } catch (Http2Exception.HeaderListSizeException e) { assertEquals(streamId, e.streamId()); } finally { buf.release(); } } @Test public void decodeLargerThanHeaderListSizeGoAway() throws Exception { decoder.maxHeaderListSize(MIN_HEADER_LIST_SIZE, MIN_HEADER_LIST_SIZE); ByteBuf buf = encode(b(":method"), b("GET")); final int streamId = 1; try { decoder.decodeHeaders(streamId, buf); fail(); } catch (Http2Exception e) { assertEquals(Http2Error.PROTOCOL_ERROR, e.error()); } finally { buf.release(); } } private static byte[] b(String string) { return string.getBytes(UTF_8); } private static ByteBuf encode(byte[]... entries) throws Exception { HpackEncoder hpackEncoder = newTestEncoder(); ByteBuf out = Unpooled.buffer(); Http2Headers http2Headers = new DefaultHttp2Headers(false); for (int ix = 0; ix < entries.length;) { http2Headers.add(new AsciiString(entries[ix++], false), new AsciiString(entries[ix++], false)); } hpackEncoder.encodeHeaders(3 /* randomly chosen */, out, http2Headers, NEVER_SENSITIVE); return out; } }