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HttpResponseDecoderTest Class — netty Architecture

Architecture documentation for the HttpResponseDecoderTest class in HttpResponseDecoderTest.java from the netty codebase.

Class java

Entity Profile

Dependency Diagram

graph TD
  90546a8c_51c4_a9dc_b6e8_695d29269596["HttpResponseDecoderTest"]
  e6d1d68e_8cf8_7114_9792_57dd8d4b0ee1["HttpResponseDecoderTest.java"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|defined in| e6d1d68e_8cf8_7114_9792_57dd8d4b0ee1
  74f33848_d63d_306b_647d_78f1ba228fc3["testMaxHeaderSize1()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 74f33848_d63d_306b_647d_78f1ba228fc3
  3bc58c15_2107_cc9a_16f0_be19507abe47["testMaxHeaderSize2()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 3bc58c15_2107_cc9a_16f0_be19507abe47
  826ab2e2_7f78_7506_1345_a9c793d12d3f["testTotalHeaderLimit()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 826ab2e2_7f78_7506_1345_a9c793d12d3f
  805cc2d4_dd80_f5a9_72dd_1a9d0e26292d["testResponseChunked()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 805cc2d4_dd80_f5a9_72dd_1a9d0e26292d
  c2f2b7f3_7e5a_52c0_f650_65c5d824ed86["testResponseChunkedWithValidUncommonPatterns()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| c2f2b7f3_7e5a_52c0_f650_65c5d824ed86
  bedde236_10c0_3e80_acc6_6aa3f59454f8["testResponseChunkedWithControlChars()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| bedde236_10c0_3e80_acc6_6aa3f59454f8
  39992be3_a998_e5e7_6cc1_a77edac46acd["testResponseDisallowPartialChunks()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 39992be3_a998_e5e7_6cc1_a77edac46acd
  b40beb75_d915_1036_286d_c59da379c5e7["testResponseChunkedExceedMaxChunkSize()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| b40beb75_d915_1036_286d_c59da379c5e7
  1c44ee2c_9d3e_bfaf_420f_50086ce37370["testClosureWithoutContentLength1()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 1c44ee2c_9d3e_bfaf_420f_50086ce37370
  1adad348_9748_1739_c0c7_446d4bac41ba["testClosureWithoutContentLength2()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 1adad348_9748_1739_c0c7_446d4bac41ba
  7370404a_95a9_7a25_4096_fd00ff108156["testPrematureClosureWithChunkedEncoding1()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 7370404a_95a9_7a25_4096_fd00ff108156
  8fcbb9ce_05be_d47e_ef88_8556996cc892["testPrematureClosureWithChunkedEncoding2()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 8fcbb9ce_05be_d47e_ef88_8556996cc892
  0e4fd1ca_77e7_7dd0_cbed_711b295bc5c2["testLastResponseWithEmptyHeaderAndEmptyContent()"]
  90546a8c_51c4_a9dc_b6e8_695d29269596 -->|method| 0e4fd1ca_77e7_7dd0_cbed_711b295bc5c2

Relationship Graph

Source Code

codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java lines 44–1234

public class HttpResponseDecoderTest {

    /**
     * The size of headers should be calculated correctly even if a single header is split into multiple fragments.
     * @see <a href="https://github.com/netty/netty/issues/3445">#3445</a>
     */
    @Test
    public void testMaxHeaderSize1() {
        final int maxHeaderSize = 8192;

        final EmbeddedChannel ch = new EmbeddedChannel(new HttpResponseDecoder(4096, maxHeaderSize, 8192));
        final char[] bytes = new char[maxHeaderSize / 2 - 4];
        Arrays.fill(bytes, 'a');

        ch.writeInbound(Unpooled.copiedBuffer("HTTP/1.1 200 OK\r\n", CharsetUtil.US_ASCII));

        // Write two 4096-byte headers (= 8192 bytes)
        ch.writeInbound(Unpooled.copiedBuffer("A:", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        assertNull(ch.readInbound());
        ch.writeInbound(Unpooled.copiedBuffer("B:", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));

        HttpResponse res = ch.readInbound();
        assertNull(res.decoderResult().cause());
        assertTrue(res.decoderResult().isSuccess());

        assertNull(ch.readInbound());
        assertTrue(ch.finish());
        assertInstanceOf(LastHttpContent.class, ch.readInbound());
    }

    /**
     * Complementary test case of {@link #testMaxHeaderSize1()} When it actually exceeds the maximum, it should fail.
     */
    @Test
    public void testMaxHeaderSize2() {
        final int maxHeaderSize = 8192;

        final EmbeddedChannel ch = new EmbeddedChannel(new HttpResponseDecoder(4096, maxHeaderSize, 8192));
        final char[] bytes = new char[maxHeaderSize / 2 - 2];
        Arrays.fill(bytes, 'a');

        ch.writeInbound(Unpooled.copiedBuffer("HTTP/1.1 200 OK\r\n", CharsetUtil.US_ASCII));

        // Write a 4096-byte header and a 4097-byte header to test an off-by-one case (= 8193 bytes)
        ch.writeInbound(Unpooled.copiedBuffer("A:", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        assertNull(ch.readInbound());
        ch.writeInbound(Unpooled.copiedBuffer("B: ", CharsetUtil.US_ASCII)); // Note an extra space.
        ch.writeInbound(Unpooled.copiedBuffer(bytes, CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));
        ch.writeInbound(Unpooled.copiedBuffer("\r\n", CharsetUtil.US_ASCII));

        HttpResponse res = ch.readInbound();
        assertInstanceOf(TooLongHttpHeaderException.class, res.decoderResult().cause());

        assertFalse(ch.finish());
        assertNull(ch.readInbound());
    }

    @Test
    void testTotalHeaderLimit() throws Exception {
        String requestStr = "HTTP/1.1 200 OK\r\n" +
                "Server: X\r\n" + // 9 content bytes
                "a1: b\r\n" +     // + 5 = 14 bytes,
                "a2: b\r\n\r\n";  // + 5 = 19 bytes

        // Decoding with a max header size of 18 bytes must fail:
        EmbeddedChannel channel = new EmbeddedChannel(new HttpResponseDecoder(1024, 18, 1024));
        assertTrue(channel.writeInbound(Unpooled.copiedBuffer(requestStr, CharsetUtil.US_ASCII)));
        HttpResponse response = channel.readInbound();
        assertTrue(response.decoderResult().isFailure());
        assertInstanceOf(TooLongHttpHeaderException.class, response.decoderResult().cause());
        assertFalse(channel.finish());

        // Decoding with a max header size of 19 must pass:

Defined In

Source

Frequently Asked Questions

What is the HttpResponseDecoderTest class?
HttpResponseDecoderTest is a class in the netty codebase, defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java.
Where is HttpResponseDecoderTest defined?
HttpResponseDecoderTest is defined in codec-http/src/test/java/io/netty/handler/codec/http/HttpResponseDecoderTest.java at line 44.

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