Commit Graph

406 Commits

Author SHA1 Message Date
jimin
a0656d2a31 Remove unnecessary code (#9303)
Motivation:

There are is some unnecessary code (like toString() calls) which can be cleaned up.

Modifications:

- Remove not needed toString() calls
- Simplify subString(...) calls
- Remove some explicit casts when not needed.

Result:

Cleaner code
2019-07-04 08:51:47 +02:00
jimin
9621a5b981 remove unused imports (#9287)
Motivation:

Some imports are not used

Modification:

remove unused imports

Result:

Code cleanup
2019-06-26 21:08:31 +02:00
jimin
6bd8f0502d Call to ‘asList’ with only one argument could be replaced with ‘singletonList’ (#9288)
Motivation:

asList should only be used if there are multiple elements.

Modification:

Call to asList with only one argument could be replaced with singletonList

Result:

Cleaner code and a bit of memory savings
2019-06-26 21:06:48 +02:00
Julien Viet
1ad47282c3 Preserve the original filename when encoding a multipart/form in mixed mode. (#9270)
Motivation:

The HttpPostRequestEncoder overwrites the original filename of file uploads sharing the same name encoded in mixed mode when it rewrites the multipart body header of the previous file. The original filename should be preserved instead.

Modifications:

Change the HttpPostRequestEncoder to reuse the correct filename when the encoder switches to mixed mode. The original test is incorrect and has been modified too, in addition it tests with an extra file upload since the current test was not testing the continuation of a mixed mode.

Result:

The HttpPostRequestEncoder will preserve the original filename of the first fileupload when switching to mixed mode
2019-06-24 10:40:17 +02:00
ursa
41c1ab2e82 Bugfix #9257: WebSocketProtocolHandler does NOT support autoRead=false (#9258)
Motivation:

I need to control WebSockets inbound flow manually, when autoRead=false

Modification:

Add missed ctx.read() call into WebSocketProtocolHandler, where read request has been swallowed.

Result:

Fixes #9257
2019-06-24 09:07:57 +02:00
ursa
7fc718db3c WebSocket is closed without an error on protocol violations (#9116)
Motivation:

Incorrect WebSockets closure affects our production system.
Enforced 'close socket on any protocol violation' prevents our custom termination sequence from execution.
Huge number of parameters is a nightmare both in usage and in support (decoders configuration).
Modification:

Fix violations handling - send proper response codes.
Fix for messages leak.
Introduce decoder's option to disable default behavior (send close frame) on protocol violations.
Encapsulate WebSocket response codes - WebSocketCloseStatus.
Encapsulate decoder's configuration into a separate class - WebSocketDecoderConfig.
Result:

Fixes #8295.
2019-06-18 10:05:58 +02:00
Stephane Landelle
3c36ce6b5c Introduce WebSocketClientHandshaker::absoluteUpgradeUrl, close #9205 (#9206)
Motivation:

When connecting through an HTTP proxy over clear HTTP, user agents must send requests with an absolute url. This hold true for WebSocket Upgrade request.

WebSocketClientHandshaker and subclasses currently always send requests with a relative url, which causes proxies to crash as request is malformed.

Modification:

Introduce a new parameter `absoluteUpgradeUrl` and expose it in constructors and WebSocketClientHandshakerFactory.

Result:

It's now possible to configure WebSocketClientHandshaker so it works properly with HTTP proxies over clear HTTP.
2019-06-07 16:01:10 -07:00
yipulash
ac95ff8b63 delete Other "Content-" MIME Header Fields exception (#9122)
delete Other "Content-" MIME Header Fields exception

Motivation:

RFC7578 4.8. Other "Content-" Header Fields

The multipart/form-data media type does not support any MIME header
fields in parts other than Content-Type, Content-Disposition, and (in
limited circumstances) Content-Transfer-Encoding. Other header
fields MUST NOT be included and MUST be ignored.

Modification:

Ignore other Content types.

Result: 

Other "Content-" Header Fields should be ignored no exception
2019-06-07 13:51:25 -07:00
秦世成
5ffac03f1e Support handshake timeout in websocket handlers (#8856)
Motivation:

Support handshake timeout option in websocket handlers. It makes sense to limit the time we need to move from `HANDSHAKE_ISSUED` to `HANDSHAKE_COMPLETE` states when upgrading to WebSockets

Modification:

- Add `handshakeTimeoutMillis` option in `WebSocketClientProtocolHandshakeHandler`  and `WebSocketServerProtocolHandshakeHandler`.
- Schedule a timeout task, the task will trigger user event `HANDSHAKE_TIMEOUT` if the handshake timed out.

Result:

Fixes issue https://github.com/netty/netty/issues/8841
2019-05-22 12:37:28 +02:00
Nick Hill
2ca526fac6 Ensure "full" ownership of msgs passed to EmbeddedChannel.writeInbound() (#9058)
Motivation

Pipeline handlers are free to "take control" of input buffers if they have singular refcount - in particular to mutate their raw data if non-readonly via discarding of read bytes, etc.

However there are various places (primarily unit tests) where a wrapped byte-array buffer is passed in and the wrapped array is assumed not to change (used after the wrapped buffer is passed to EmbeddedChannel.writeInbound()). This invalid assumption could result in unexpected errors, such as those exposed by #8931.

Modifications

Anywhere that the data passed to writeInbound() might be used again, ensure that either:
- A copy is used rather than wrapping a shared byte array, or
- The buffer is otherwise protected from modification by making it read-only

For the tests, copying is preferred since it still allows the "mutating" optimizations to be exercised.

Results

Avoid possible errors when pipeline assumes it has full control of input buffer.
2019-05-22 12:08:49 +02:00
Norman Maurer
c565805f1b
Do not manually reset HttpObjectDecoder in HttpObjectAggregator.handleOversizedMessage(...) (#9017) (#9156)
Motivation:

We did manually call HttpObjectDecoder.reset() in HttpObjectAggregator.handleOversizedMessage(...) which is incorrect and will prevent correct parsing of the next message.

Modifications:

- Remove call to HttpObjectDecoder.reset()
- Add unit test

Result:

Verify that we can correctly parse the next request after we rejected a request.
2019-05-17 21:18:03 +02:00
Oleksii Kachaiev
ee351ef8bc WebSocket client handshaker to support "force close" after timeout (#8896)
Motivation:

RFC 6455 defines that, generally, a WebSocket client should not close a TCP
connection as far as a server is the one who's responsible for doing that.
In practice tho', it's not always possible to control the server. Server's
misbehavior may lead to connections being leaked (if the server does not
comply with the RFC).

RFC 6455 #7.1.1 says

> In abnormal cases (such as not having received a TCP Close from the server
after a reasonable amount of time) a client MAY initiate the TCP Close.

Modifications:

* WebSocket client handshaker additional param `forceCloseAfterMillis`

* Use 10 seconds as default

Result:

WebSocket client handshaker to comply with RFC. Fixes #8883.
2019-04-10 15:25:34 +02:00
Norman Maurer
ec21e575d7
Correctly discard messages after oversized message is detected. (#9015)
Motivation:

32563bfcc1 introduced a regression in which we did now not longer discard the messages after we handled an oversized message.

Modifications:

- Do not set aggregating to false after handleOversizedMessage is called
- Adjust unit tests to verify the behaviour is correct again.

Result:

Fixes https://github.com/netty/netty/issues/9007.
2019-04-08 21:09:06 +02:00
Andrey Mizurov
fc6e668186 Add user possibility to skip the evaluation of a certain websocket ex… (#8910)
Motivation:

Add user possibility to skip the evaluation of certain web socket extension,
for example we can skip compression extension for messages that already compressed or very small and etc.

Modification:

This pull request is related with #5669

Result:

User can set to WebSocketClientExtensionHandshaker or WebSocketServerExtensionHandshaker a filter to skip the evaluation of certain extension.
2019-03-22 14:48:22 +01:00
violetagg
c8daea3045 Fix HttpUtil.isKeepAlive to behave correctly when Connection is a comma separated list (#8924)
Motivation:

According to the specification, the "Connection" header's syntax is:

"
The Connection header field's value has the following grammar:

     Connection        = 1#connection-option
     connection-option = token

Connection options are case-insensitive.
"
https://tools.ietf.org/html/rfc7230#section-6.1

This means that Connection's value can have at least one element or
a comma separated list with elements
When calculating whether the connection can remain open,
HttpUtil.isKeepAlive(HttpMessage) should take this into account.

Modifications:

- Check for "close" and "keep-alive" in a comma separated list
- Add unit test

Result:

HttpUtil.isKeepAlive(HttpMessage) works correctly when "Connection: Upgrade, close"
2019-03-13 14:28:28 +01:00
Norman Maurer
67663fa7d1
HttpContentDecoder must continue read when it did not produce any mes… (#8922)
Motivation:

When HttpContentDecoder (and so HttpContentDecompressor) does not produce any message we need to make sure it calls ctx.read() if auto read is false to not stale.

Modifications:

- Keep track if we need to call ctx.read() or not
- Add unit test

Result:

Fixes https://github.com/netty/netty/issues/8915.
2019-03-07 10:31:51 +01:00
Artem Morozov
8fecbab2c5 Handle null "origin" header in "Old Hixie 75 handshake" as proper bad request. (#8864)
Motivation:

Gracefully respond on bad client request.
We have a set of errors produced by Android 7.1.1/7.1.2 clients where both headers `HttpHeaderNames.SEC_WEBSOCKET_VERSION` and `HttpHeaderNames.ORIGIN` are not present. Absence of the first headers leads to WebSocketServerHandshaker00 be applied as a handshaker. However, null 2nd header causes

```
java.lang.NullPointerException: value
 io.netty.util.internal.ObjectUtil.checkNotNull(ObjectUtil.java:33)
 io.netty.handler.codec.DefaultHeaders.addObject(DefaultHeaders.java:327)
 io.netty.handler.codec.http.DefaultHttpHeaders.add(DefaultHttpHeaders.java:123)
 io.netty.handler.codec.http.websocketx.WebSocketServerHandshaker00.newHandshakeResponse(WebSocketServerHandshaker00.java:162)
```
Which causes connection close with unclear reason.

Modification:

Added null-check, and in case of null an appropriate WebSocketHandshakeException is thrown.

Result:

In case of null `HttpHeaderNames.ORIGIN` header a WebSocketHandshakeException is caught by WebSocketServerProtocolHandler which sends a graceful `BAD_REQUEST`.
2019-02-13 17:14:58 -08:00
Roger Kapsi
32563bfcc1 Selective Message Aggregation (#8793)
Motivation

Implementations of MessageAggregator (HttpObjectAggregator in particular) may wish to
selectively aggrerage requests and responses on a case-by-case basis such as for example
only POST requests or only responses of a certain content-type.

Modifications

Adding a flag to MessageAggregator that toggles between true/false depending on if aggregation
is desired for the current message or not.

Result

Fixes #8772
2019-02-04 09:57:54 +01:00
Norman Maurer
91d3920aa2
HttpObjectDecoder ignores HTTP trailer header when empty line is rece… (#8799)
* HttpObjectDecoder ignores HTTP trailer header when empty line is received in seperate ByteBuf

Motivation:

When the empty line that termines the trailers was sent in a seperate ByteBuf we did ignore the previous parsed trailers and just returned none.

Modifications:

- Correct respect previous parsed trailers.
- Add unit test.

Result:

Fixes https://github.com/netty/netty/issues/8736
2019-01-31 20:27:47 +01:00
Norman Maurer
cd3254df88
Update to new checkstyle plugin (#8777) (#8780)
Motivation:

We need to update to a new checkstyle plugin to allow the usage of lambdas.

Modifications:

- Update to new plugin version.
- Fix checkstyle problems.

Result:

Be able to use checkstyle plugin which supports new Java syntax.
2019-01-25 11:58:42 +01:00
Bartek Kowalczyk
83b286f5d9 Set result for decoded request and add test for #8721 (#8721)
Motivation:
I want to fix bug in vert.x project (eclipse-vertx/vert.x#2562) caused by ComposedLastHttpContent result being null. I don't know if it is intentional that this last decoded chuck in the issue returns null, but if not - I am providing fix for that.

Modification:
* Added new constructor in ComposedLastHttpContent allowing to pass DecoderResult
* set DecoderResult.SUCCESS for created ComposedLastHttpContent in HttpContentEncoder
* set DecoderResult.SUCCESS for created ComposedLastHttpContent in HttpContentDecoder

Result:
Fixes eclipse-vertx/vert.x#2562
2019-01-21 07:45:03 +01:00
Riyafa Abdul Hameed
dd54c06e1e Close connection for CorruptedFrameException (#8705)
Motivation:

The CorruptedFrameException from the finish() method of the Utf8Validator gets propagated to other handlers while the connection is still open.

Modification:

Override exceptionCaught method of the Utf8FrameValidator and close the connection if it is a CorruptedFrameException.

Result:

The CorruptedFrameException gets propagated to other handlers only after properly closing the connection.
2019-01-17 07:17:12 +01:00
Stephane Landelle
302dac8c45 Support 1012, 1013 and 1014 WebSocket close status code (#8664)
Motivation:

RFC 6455 doesn't define close status codes 1012, 1013 and 1014.
Yet, since then, IANA has defined them and web browsers support them.

From https://www.iana.org/assignments/websocket/websocket.xhtml:

* 1012: Service Restart
* 1013: Try Again Later
* 1014: The server was acting as a gateway or proxy and received an invalid response from the upstream server. This is similar to 502 HTTP Status Code.

Modification:

Make status codes 1012, 1013 and 1014 legit.

Result:

WebSocket status codes as defined by IANA are supported.
2018-12-17 19:42:50 +01:00
Norman Maurer
29d185b796 Revert "Support 1012, 1013 and 1014 WebSocket status code"
This reverts commit db6d94f82a.
2018-12-14 18:24:30 +01:00
Stephane Landelle
db6d94f82a Support 1012, 1013 and 1014 WebSocket status code
Motivation:

RFC 6455 doesn't define status codes 1012, 1013 and 1014.
Yet, since then, IANA has defined them, web browsers support them, applications in the wild do use them but it's currently not possible to buid a Netty based client for those services.

From https://www.iana.org/assignments/websocket/websocket.xhtml:

* 1012: Service Restart
* 1013: Try Again Later
* 1014: The server was acting as a gateway or proxy and received an invalid response from the upstream server. This is similar to 502 HTTP Status Code.

Modification:

Make status codes 1012, 1013 and 1014 legit.

Result:

WebSocket status codes as defined by IANA are supported.
2018-12-14 14:08:03 +01:00
Julien Hoarau
d05666ae2d Set-Cookie headers should not be combined (#8611)
Motivation:

According to the HTTP spec set-cookie headers should not be combined
because they are not using the list syntax.

Modifications:

Do not combine set-cookie headers.

Result:

Set-Cookie headers won't be combined anymore
2018-12-01 10:47:18 +01:00
Christian Lang
a6f807dd68 Fix context and window sizes sides. (#8395)
Motivation:

As mentioned in RFC 7692 :

The "server_no_context_takeover" Extension Parameter should be used on server side for compression and on client side for decompression.

The "client_no_context_takeover" Extension Parameter should be used on client side for compression and on server side for decompression.

Right now, in PerMessageDeflateClientExtensionHandshaker, the decoder uses clientNoContext instead of serverNoContext and the encoder uses serverNoContext instead of clientNoContext.

The same inversion is present in PerMessageDeflateServerExtensionHandshaker: the decoder uses
serverNoContext instead of clientNoContext, while the encoder uses serverNoContext instead of clientNoContext. Besides the context inversion, the sliding window sizes seem to be inversed as well.

Modification:

Inverse clientNoContext with serverNoContext and clientWindowSize with serverWindowSize for both the Decoder and Encoder in PerMessageDeflateServerExtensionHandshaker and PerMessageDeflateClientExtensionHandshaker.

Result:

This fixes the decompression fail in the case that one of the contexts is set and the other one is not.
2018-10-18 13:55:30 +02:00
Andrey Mizurov
2ab3e13f08 Fix get charset from content-type header with multiple parameters (#8286)
Motivation:

Get charset from Content-Type header even it contains multiple parameters.

Modification:

Extract charset value from the charset parameter if it is not last.

Result:

Fixes #8273
2018-09-14 21:39:01 +02:00
Norman Maurer
83710cb2e1
Replace toArray(new T[size]) with toArray(new T[0]) to eliminate zero-out and allow the VM to optimize. (#8075)
Motivation:

Using toArray(new T[0]) is usually the faster aproach these days. We should use it.

See also https://shipilev.net/blog/2016/arrays-wisdom-ancients/#_conclusion.

Modifications:

Replace toArray(new T[size]) with toArray(new T[0]).

Result:

Faster code.
2018-06-29 07:56:04 +02:00
Alexey Kachayev
fa4e28ba1c Fix random number generators in WebSocketUtil
Motivation:

Implementation of WebSocketUtil/randomNumber is incorrect and might violate
the API returning values > maximum specified.

Modifications:

* WebSocketUtil/randomNumber is reimplemented, the idea of the solution described
  in the comment in the code

* Implementation of WebSocketUtil/randomBytes changed to nextBytes method

* PlatformDependet.threadLocalRandom is used instead of Math.random to improve efficiency

* Added test cases to check random numbers generator

* To ensure corretness, we now assert that min < max when generating random number

Result:

WebSocketUtil/randomNumber always produces correct result.

Covers https://github.com/netty/netty/issues/8023
2018-06-25 14:42:59 +02:00
Stefan Lance
4c709be1ab Print correct invalid character after unwrapping value in CookieEncoder
Motivation:

If a wrapped cookie value with an invalid charcater is passed to the strict
encoder, an exception is thrown on validation but the error message contains
a character at the wrong position.

Modifications:

Print `unwrappedValue.charAt(pos)` instead of `value.charAt(pos)`.

Result:

The exception indicates the correct invalid character in the unwrapped cookie.
2018-06-21 08:19:01 +02:00
Nick Travers
48911e0b63 Set (and override) websocket handshake headers after custom headers (#7975)
Motivation:

Currently, when passing custom headers to a WebSocketClientHandshaker,
if values are added for headers that are reserved for use in the
websocket handshake performed with the server, these custom values can
be used by the server to compute the websocket handshake challenge. If
the server computes the response to the challenge with the custom header
values, rather than the values computed by the client handshaker, the
handshake may fail.

Modifications:

Update the client handshaker implementations to add the custom header
values first, and then set the reserved websocket header values.

Result:

Reserved websocket handshake headers, if present in the custom headers
passed to the client handshaker, will not be propagated to the server.
Instead the client handshaker will propagate the values it generates.

Fixes #7973.
2018-05-30 19:52:40 +02:00
Nick Travers
9a3311506e Run the WebSocketClientHandshaker08Test on the 08 implementation (#7974)
Motivation:

The websockets abstract test suite does not run against the 08
implementation in the 08 version of the test suite.

Modifications:

Update the WebSocketClientHandshaker08Test to instantiate a new
WebSocketClientHandshaker08 rather than an 07 handshaker.

Result:

The WebSocketClientHandshaker08Test now tests the 08 implementation.
2018-05-27 10:02:49 +02:00
Nick Travers
19d1f4ea62 Propagate pong frames in WebSocketProtocolHandler (#7955)
Motivation:

Currently, on recipt of a PongWebSocketFrame, the
WebSocketProtocolHandler will drop the frame, rather than passing it
along so it can be referenced by other handlers.

Modifications:

Add boolean field to WebSocketProtocolHandler to indicate whether Pong
frames should be dropped or propagated, defaulting to "true" to preserve
existing functionality.

Add new constructors to the client and server implementations of
WebSocketProtocolHandler that allow for overriding the behavior for the
handling of Pong frames.

Result:

PongWebSocketFrames are passed along the channel, if specified.
2018-05-24 20:27:29 +02:00
Norman Maurer
4d6b006fe6
Correctly take status into account when compare DefaultHttpResponse (#7965)
Motivation:

DefaultHttpResponse did not respect its status when compute the hashCode and check for equality.

Modifications:

Correctly implement hashCode and equals

Result:

Fixes https://github.com/netty/netty/issues/7964.
2018-05-24 20:13:21 +02:00
Norman Maurer
c60263e8a3
Correctly handle responses with status 205 and payload. (#7891)
Motivation:

HTTP responses with status of 205 should not contain a payload. We should enforce this.

Modifications:

Correctly handle responses with status 205 and payload by set Content-Length: 0 header and stripping out the content.

Result:

Fixes https://github.com/netty/netty/issues/7888
2018-05-03 11:25:06 +02:00
Norman Maurer
0261e00662
Allow to call AbstractDiskHttpData.setContent(Unpooled.EMPTY_BUFFER) multiple times. (#7890)
Motivation:

It should be possible to call setContent(Unpooled.EMPTY_BUFFER) multiple times just like its possible to do the same with a non empty buffer.

Modifications:

- Correctly reset underlying storage if called multiple times.
- Add tests

Result:

Fixes https://github.com/netty/netty/issues/6418
2018-04-30 08:39:24 +02:00
Gustavo Fernandes
f874a37ecb Fixes NPE in Corshandler for unauthorized prefligt requests (#7865)
Motivation:
NPE in `CorsHandler` if a pre-flight request is done using an Origin header which is not allowed by any `CorsConfig` passed to the handler on creation.

Modifications:
During the pre-flight, check the `CorsConfig` for `null` and handle it correctly by not returning any access-control header

Result:
No more NPE for pre-flight requests with unauthorized origins.
2018-04-13 14:36:45 +02:00
Gustavo Fernandes
76c5f6cd03 Enable per origin Cors configuration (#7800)
Motivation:

Finer granularity when configuring CorsHandler, enabling different policies for different origins.

Modifications:

The CorsHandler has an extra constructor that accepts a List<CorsConfig> that are evaluated sequentially when processing a Cors request

Result:

The changes don't break backwards compatibility. The extra ctor can be used to provide more than one CorsConfig object.
2018-04-11 10:06:13 +02:00
Nikolay Fedorovskikh
587afddb27 Fixes NPE in ClientCookieDecoder
Motivation:
NPE in `ClientCookieDecoder` if cookie starts with comma.

Modifications:
Check `cookieBuilder` for `null` in the return.

Result:
No fails NPE on invalid cookies.
2018-04-05 19:44:08 +02:00
Bryce Anderson
741602050f Don't replace all 'connection' headers when sending h2c upgrade request (#7824)
Motivation:

There may be meaningful 'connection' headers that exist on a request
that is used to attempt a HTTP/1.x upgrade request that will be
clobbered.

Modifications:

HttpClientUpgradeHandler uses the `HttpHeaders.add` instead of
`HttpHeaders.set` when adding the 'upgrade' field.

Result:

Fixes #7823, existing 'connection' headers are preserved.
2018-04-01 19:59:30 +02:00
Bryce Anderson
b309271e49 HttpServerUpgradeHandler shouldn't wait for flush to reshape pipeline
Motivation:

There is a race between both flushing the upgrade response and receiving
more data before the flush ChannelPromise can fire and reshape the
pipeline. Since We have already committed to an upgrade by writing the
upgrade response, we need to be immediately prepared for handling the
next protocol.

Modifications:

The pipeline reshaping logic in HttpServerUpgradeHandler has been moved
out of the ChannelFutureListener attached to the write of the upgrade
response and happens immediately after the writeAndFlush call, but
before the method returns.

Result:

The pipeline is no longer subject to receiving more data before the
pipeline has been reformed.
2018-03-28 19:54:30 +02:00
Stephane Landelle
d60cd0231d HttpProxyHandler generates invalid CONNECT url and Host header when address is resolved
Motivation:

HttpProxyHandler uses `NetUtil#toSocketAddressString` to compute
CONNECT url and Host header.

The url is correct when the address is unresolved, as
`NetUtil#toSocketAddressString` will then use
`getHoststring`/`getHostname`. If the address is already resolved, the
url will be based on the IP instead of the hostname.

There’s an additional minor issue with the Host header: default port
443 should be omitted.

Modifications:

* Introduce NetUtil#getHostname
* Introduce HttpUtil#formatHostnameForHttp to format an
InetSocketAddress to
HTTP format
* Change url computation to favor hostname instead of IP
* Introduce HttpProxyHandler ignoreDefaultPortsInConnectHostHeader
parameter to ignore 80 and 443 ports in Host header

Result:

HttpProxyHandler performs properly when connecting to a resolved address
2018-03-27 09:43:11 +02:00
teaey
06dcca1dbc When the response exceeds the threshold, it will be compressed
Motivation:

When the response is very small, compression will inflate the response.

Modifications:

Add filed io.netty.handler.codec.http.HttpContentCompressor#compressThreshold that control whether the HTTP response should be compressed.

Result:

Fixes #7660.
2018-02-25 16:43:45 +01:00
Matteo Bertozzi
b640797de1 Fix HttpPostMultipartRequestDecoder.splitMultipartHeader() String index out of range: -1 with empty header
Motivation:

A Malformed empty header value (e.g. Content-Type: \r\n) will trigger a String index out of range
while trying to parse the multi-part request, using the HttpPostMultipartRequestDecoder.

Modification:

Ensure that the substring() method is called passing the endValue >= valueStart.
In case of an empty header value, the empty header value associated with the header key will be returned.

Result:

Fixes #7620
2018-01-25 14:03:35 +01:00
Scott Mitchell
4921f62c8a
HttpResponseStatus object allocation reduction
Motivation:
Usages of HttpResponseStatus may result in more object allocation then necessary due to not looking for cached objects and the AsciiString parsing method not being used due to CharSequence method being used instead.

Modifications:
- HttpResponseDecoder should attempt to get the HttpResponseStatus from cache instead of allocating a new object
- HttpResponseStatus#parseLine(CharSequence) should check if the type is AsciiString and redirect to the AsciiString parsing method which may not require an additional toString call
- HttpResponseStatus#parseLine(AsciiString) can be optimized and doesn't require and may not require object allocation

Result:
Less allocations when dealing with HttpResponseStatus.
2018-01-24 22:01:52 -08:00
Ngoc Dao
2b4f667791 Fix DefaultHttpDataFactory cleanup bug
Motivation:

DefaultHttpDataFactory uses HttpRequest as map keys.

Because of the implementation of "hashCode"" and "equals" in DefaultHttpRequest,
if we use normal maps, HttpDatas of different requests may end up in the same map entry,
causing cleanup bug.

Consider this example:
- Suppose that request1 is equal to request2, causing their HttpDatas to be stored in one single map entry.
- request1 is cleaned up first, while request2 is still being decoded.
- Consequently request2's HttpDatas are suddenly gone, causing NPE, or worse loss of data.

This bug can be reproduced by starting the HttpUploadServer example,
then run this command:
ab -T 'application/x-www-form-urlencoded' -n 100 -c 5 -p post.txt http://localhost:8080/form

post.txt file content:
a=1&b=2

There will be errors like this:
java.lang.NullPointerException
        at io.netty.handler.codec.http.multipart.MemoryAttribute.getValue(MemoryAttribute.java:64)
        at io.netty.handler.codec.http.multipart.MixedAttribute.getValue(MixedAttribute.java:243)
        at io.netty.example.http.upload.HttpUploadServerHandler.writeHttpData(HttpUploadServerHandler.java:271)
        at io.netty.example.http.upload.HttpUploadServerHandler.readHttpDataChunkByChunk(HttpUploadServerHandler.java:230)
        at io.netty.example.http.upload.HttpUploadServerHandler.channelRead0(HttpUploadServerHandler.java:193)
        at io.netty.example.http.upload.HttpUploadServerHandler.channelRead0(HttpUploadServerHandler.java:66)
        at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
        at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:310)
        at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:284)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340)
        at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1412)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362)
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:943)
        at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:141)
        at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:645)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:580)
        at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:497)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:459)
        at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:886)
        at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
        at java.lang.Thread.run(Thread.java:748)

Modifications:

Keep identity of requests by using IdentityHashMap

Result:

DefaultHttpDataFactory is fixed.

The ConcurrentHashMap is replaced with a synchronized map, but I think the performance won't be affected much in real web apps.
2017-12-28 07:40:17 +01:00
Norman Maurer
9ef83234f3 Add tests for HttpObjectDecoder related to limits
Motivation:

HttpObjectDecoder will throw a TooLongFrameException when either the max size for the initial line or the header size was exceeed. We have no tests for this.

Modifications:

Add test cases.

Result:

More tests.
2017-11-28 13:38:01 +01:00
Norman Maurer
7aca99f986 DefaultHttpHeader.names().toArray(...) may throw ArrayStoreException
Motivation:

DefaultHttpHeader.names() exposes HTTP header names as a Set<String>. Converting the resulting set to an array using toArray(String[]) throws an exception: java.lang.ArrayStoreException: io.netty.util.AsciiString.

Modifications:

- Remove our custom implementation of toArray(...) (and others) by just extending AbstractCollection.
- Add unit test

Result:

Fixes [#7428].
2017-11-22 19:04:55 +01:00
Stephane Landelle
e420f857fa Optimize DefaultHeaders#toString and implement HttpHeaders#toString
Motivation:

For debugging/logging purpose, it would be convenient to have
HttpHeaders#toString implemented.

DefaultHeaders does implement toString be the implementation is suboptimal and allocates a Set for the names and Lists for values.

Modification:

* Introduce HeadersUtil#toString that provides a convenient optimized helper to implement toString for various headers implementations
* Have DefaultHeaders#toString and HttpHeaders#toString delegate their toString implementation to HeadersUtil

Result:

Convenient HttpHeaders#toString. Optimized DefaultHeaders#toString.
2017-11-22 08:42:59 +01:00