RestController should not consume request content #66043
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The change elastic#37504 modifies the BaseRestHandler to make it reject all requests that have an unconsumed body. The notion of consumed or unconsumed body is carried by the RestRequest object and its contentConsumed attribute, which is set to true when the content() or content(true) methods are used. In our REST layer, we usually expect the RestHandlers to consume the request content when needed, but it appears that the RestController always consumes the content upfront. This commit changes the content() method used by the RestController so that it does not mark the content as consumed. Backport of elastic#44902
jaymode
added
>bug
:Core/Infra/REST API
|
Pinging @elastic/es-core-infra (Team:Core/Infra) |
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Thanks @jaymode. This change was not backported as I was afraid it would break some user applications, but I agree that it can be seen as a bug too. Since I don't have a strong opinion about it, I'm deferring the decision to backport to the core infra team. |
rjernst
approved these changes
Dec 14, 2020
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The change #37504 modifies the BaseRestHandler to make it reject all requests
that have an unconsumed body. The notion of consumed or unconsumed body
is carried by the RestRequest object and its contentConsumed attribute, which
is set to true when the content() or content(true) methods are used.
In our REST layer, we usually expect the RestHandlers to consume the request
content when needed, but it appears that the RestController always consumes
the content upfront.
This commit changes the content() method used by the RestController so that it
does not mark the content as consumed.
Backport of #44902
Closes #65242
Note to reviewers: this is targeted against 7.x as this is a backport of a fix that was made on master but at the time was not backported. However, I see this as a bug that we should fix which is why I am opening this for backport to 7.x. The review request is more about whether or not we should backport this to 7.x than the actual changes to the code as they have already been approved.