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Add TRANSFER_ENCODING violation for MultiPart RFC7578 parser. #7976

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lachlan-roberts
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Signed-off-by: Lachlan Roberts <lachlan@webtide.com>
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Question about the scope of the violation, to eliminate harmless conditions leaving harmful ones to only trigger.

@@ -610,7 +637,8 @@ else if (key.equalsIgnoreCase("content-type"))

// Transfer encoding is not longer considers as it is deprecated as per
// https://tools.ietf.org/html/rfc7578#section-4.7

if (key.equalsIgnoreCase("content-transfer-encoding"))
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Do we want to be more subtle about this?

There are 3 Content-Transfer-Encoding scenarios that are not a violation (as they basically mean nothing more than "identity" or "no encoding")

  • Content-Transfer-Encoding: 8bit (common enough in older httpclients)
  • Content-Transfer-Encoding: binary (also common enough, Apache HttpClient will use this for example)
  • Content-Transfer-Encoding: 7bit (this one is iffy)

So that any other value is a violation

@joakime joakime added this to In progress in Jetty 9.4.47 - 🧊 FROZEN 🥶 via automation May 11, 2022
Signed-off-by: Lachlan Roberts <lachlan@webtide.com>
Jetty 9.4.47 - 🧊 FROZEN 🥶 automation moved this from In progress to Reviewer approved May 11, 2022
@lachlan-roberts lachlan-roberts merged commit 9438e50 into jetty-9.4.x May 12, 2022
Jetty 9.4.47 - 🧊 FROZEN 🥶 automation moved this from Reviewer approved to Done May 12, 2022
@lachlan-roberts lachlan-roberts deleted the jetty-9.4.x-MultiPartNonComplianceViolations branch May 12, 2022 04:31
lachlan-roberts added a commit that referenced this pull request May 12, 2022
* Add TRANSFER_ENCODING violation for MultiPart RFC7578 parser.
* Ignore TRANSFER_ENCODING violation for 8bit and binary.

Signed-off-by: Lachlan Roberts <lachlan@webtide.com>
lachlan-roberts added a commit that referenced this pull request May 16, 2022
Add TRANSFER_ENCODING violation for MultiPart RFC7578 parser. (#7976)
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2 participants