Commit Graph

17 Commits

Author SHA1 Message Date
Riley Park
343b5df922
Migrate codec-smtp tests to JUnit 5 (#11309)
Motivation:

JUnit 5 is more expressive, extensible, and composable in many ways, and it's better able to run tests in parallel.

Modifications:

Use JUnit5 in codec-smtp tests

Result:

Related to https://github.com/netty/netty/issues/10757
2021-05-26 09:44:06 +02:00
Artem Smotrakov
b8ae2a2af4 Enable nohttp check during the build (#10708)
Motivation:

HTTP is a plaintext protocol which means that someone may be able
to eavesdrop the data. To prevent this, HTTPS should be used whenever
possible. However, maintaining using https:// in all URLs may be
difficult. The nohttp tool can help here. The tool scans all the files
in a repository and reports where http:// is used.

Modifications:

- Added nohttp (via checkstyle) into the build process.
- Suppressed findings for the websites
  that don't support HTTPS or that are not reachable

Result:

- Prevent using HTTP in the future.
- Encourage users to use HTTPS when they follow the links they found in
  the code.
2020-10-23 15:26:25 +02:00
Ruwei
6cd9617311 add AUTH & EMPTY to SmtpCommand (#9999)
Motivation:
AUTH command is used to login to a SMTP server.
EMPTY command is for request with only parameter.

Modifications:
Add AUTH & EMPTY to SmtpCommand & SmtpRequests
Update SmtpRequestEncoder#writeParameters, handle SP according to
command
Add unit test

Result:
fix #9995
2020-02-07 14:30:16 +01:00
Norman Maurer
0e4c073bcf
Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626)
Motivation:

ByteToMessageDecoder requires using an intermediate List to put results into. This intermediate list adds overhead (memory/CPU) which grows as the number of objects increases. This overhead can be avoided by directly propagating events through the ChannelPipeline via ctx.fireChannelRead(...). This also makes the semantics more clear and allows us to keep track if we need to call ctx.read() in all cases.

Modifications:

- Remove List from the method signature of ByteToMessageDecoder.decode(...) and decodeLast(...)
- Adjust all sub-classes
- Adjust unit tests
- Fix javadocs.

Result:

Adjust ByteToMessageDecoder as noted in https://github.com/netty/netty/issues/8525.
2019-12-16 21:00:32 +01:00
Scott Mitchell
4e37689774 SmtpRequestEncoderTest ByteBuf leak (#9075)
Motivation:
SmtpRequestEncoderTest#testThrowsIfContentExpected has a ByteBuf leak.

Modifications:
- SmtpRequestEncoderTest#testThrowsIfContentExpected should release buffers in a finally block

Result:
No more leaks in SmtpRequestEncoderTest#testThrowsIfContentExpected.
2019-04-19 08:47:28 +02:00
田欧
e8efcd82a8 migrate java8: use requireNonNull (#8840)
Motivation:

We can just use Objects.requireNonNull(...) as a replacement for ObjectUtil.checkNotNull(....)

Modifications:

- Use Objects.requireNonNull(...)

Result:

Less code to maintain.
2019-02-04 10:32:25 +01:00
田欧
934a07fbe2 migrate java8 (#8779)
Motivation:

We can omit argument types when using Java8.

Modification:

Omit arguments where possible.

Result:

Cleaner code.
2019-01-28 05:55:30 +01:00
Dmitriy Dumanskiy
4a10357fd8 IDE warnings cleanup (#8768)
Motivation:

IDE shows some warnings

Modification:

Small IDE warnings cleanup in different places.

Result:

Less warnings
2019-01-23 14:01:48 +01:00
田欧
9d62deeb6f Java 8 migration: Use diamond operator (#8749)
Motivation:

We can use the diamond operator these days.

Modification:

Use diamond operator whenever possible.

Result:

More modern code and less boiler-plate.
2019-01-22 16:07:26 +01:00
Nikolay Fedorovskikh
0234878c4b Fix the commands cache and hashCode() in SmtpCommand
Motivation:
- A `hashCode` of the SmtpCommand is recalculated on each call of `hashCode()`. Cached hash code value can be just replaced with call of `name.hashCode()`.
- The commands cache don't work for strings: `SmtpCommand.valueOf("HELO")` returns a new instance.
- Field `contentExpected` is redundant and can be replaced with `equals(DATA)`.

Modifications:
- Use the `name.hashCode()` as hash code result.
- Fix a command cache: use strings as map keys.
- Replace field `contentExpected` to using `this.equals(DATA)`.
- Add unit tests.

Result:
More correct and clean code.
2017-08-18 09:46:53 +02:00
Nikolay Fedorovskikh
4875a2aad4 Immediate caching the strings wrapped to AsciiString
Motivation:
The `AsciiString#toString` method calculate string value and cache it into field. If an `AsciiString` created from the `String` value, we can avoid rebuilding strings if we cache them immediately when creating `AsciiString`. It would be useful for constants strings, which already stored in the JVMs string table, or in cases where an unavoidable `#toString `method call is assumed.

Modifications:
- Add new static method `AsciiString#cache(String)` which save string value into cache field.
- Apply a "benign" data race in the `#hashCode` and `#toString` methods.

Result:
Less memory usage in some `AsciiString` use cases.
2017-08-15 06:22:14 +02:00
Nikolay Fedorovskikh
df568c739e Use ByteBuf#writeShort/writeMedium instead of writeBytes
Motivation:

1. Some encoders used a `ByteBuf#writeBytes` to write short constant byte array (2-3 bytes). This can be replaced with more faster `ByteBuf#writeShort` or `ByteBuf#writeMedium` which do not access the memory.
2. Two chained calls of the `ByteBuf#setByte` with constants can be replaced with one `ByteBuf#setShort` to reduce index checks.
3. The signature of method `HttpHeadersEncoder#encoderHeader` has an unnecessary `throws`.

Modifications:

1. Use `ByteBuf#writeShort` or `ByteBuf#writeMedium` instead of `ByteBuf#writeBytes` for the constants.
2. Use `ByteBuf#setShort` instead of chained call of the `ByteBuf#setByte` with constants.
3. Remove an unnecessary `throws` from `HttpHeadersEncoder#encoderHeader`.

Result:

A bit faster writes constants into buffers.
2017-07-10 14:37:41 +02:00
Michael O'Brien
12a5754569 Don't add null to SmtpResponse.details()
Motivation:

If the remote server returns an invalid response in the form "000 \r\n"
(i.e. a three digit code, then space, but no details), null is added
as a singletonList to the response being constructed.

This seems unexpected and it would be easier to handle an empty
details list in client code.

Modifications:

If detail is null (because frame.isReadable() returned false after
reading the separator), initialise DefaultSmtpResponse with an empty
list instead of a list containing a single null value.

Result:

When encountering this malformed server response, a DefaultSmtpResponse
with a code but no details will be created.
2017-05-23 19:17:59 +02:00
Michael O'Brien
6a8532acd1 Reset the contentExpected flag when RSET is written
Motivation:

If the remote server returns a 4xx/5xx error in response to
a DATA command (or earlier command if using pipelining),
SmtpRequestEncoder can become stuck in an invalid state,
not allowing any requests to be sent.

This makes the channel unusable and the connection has to be closed,
or the encoder handler has to be replaced.

Modifications:

If a RSET command is written to the channel, the contentExpected
flag is set to false, and the RSET is written to the channel.

Result:

Sending a RSET command after a server 4xx/5xx error will make it
possible to use the current connection for new mail transactions.
2017-05-19 19:36:04 +02:00
Trustin Lee
3a9f472161 Make retained derived buffers recyclable
Related: #4333 #4421 #5128

Motivation:

slice(), duplicate() and readSlice() currently create a non-recyclable
derived buffer instance. Under heavy load, an application that creates a
lot of derived buffers can put the garbage collector under pressure.

Modifications:

- Add the following methods which creates a non-recyclable derived buffer
  - retainedSlice()
  - retainedDuplicate()
  - readRetainedSlice()
- Add the new recyclable derived buffer implementations, which has its
  own reference count value
- Add ByteBufHolder.retainedDuplicate()
- Add ByteBufHolder.replace(ByteBuf) so that..
  - a user can replace the content of the holder in a consistent way
  - copy/duplicate/retainedDuplicate() can delegate the holder
    construction to replace(ByteBuf)
- Use retainedDuplicate() and retainedSlice() wherever possible
- Miscellaneous:
  - Rename DuplicateByteBufTest to DuplicatedByteBufTest (missing 'D')
  - Make ReplayingDecoderByteBuf.reject() return an exception instead of
    throwing it so that its callers don't need to add dummy return
    statement

Result:

Derived buffers are now recycled when created via retainedSlice() and
retainedDuplicate() and derived from a pooled buffer
2016-05-17 11:16:13 +02:00
Norman Maurer
9229ed98e2 [#5088] Add annotation which marks packages/interfaces/classes as unstable
Motivation:

Some codecs should be considered unstable as these are relative new. For this purpose we should introduce an annotation which these codecs should us to be marked as unstable in terms of API.

Modifications:

- Add UnstableApi annotation and use it on codecs that are not stable
- Move http2.hpack to http2.internal.hpack as it is internal.

Result:

Better document unstable APIs.
2016-05-09 15:16:35 +02:00
Norman Maurer
562d8d2200 Add smtp codec (client side only).
Motivation:

When writing a SMTP client a provided SMTP codec that follows RFC2821 is useful.

Modification:

Add client side codec and test.

Results:

People who want to write a SMTP client can reuse the codec.
2016-04-07 18:42:17 +02:00