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HTTP header fields stored per connection causes problems #5566

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bagder opened this issue Jun 15, 2020 · 0 comments
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HTTP header fields stored per connection causes problems #5566

bagder opened this issue Jun 15, 2020 · 0 comments
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HTTP HTTP/2 HTTP/3 connecting & proxies

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@bagder bagder commented Jun 15, 2020

The struct dynamically_allocated_data is stored within the connectdata struct. That data is then used per connection, while all the data in that struct is actually per request. A mistake.

This causes (occasional) problems for multiplexed requests as then the same connection is used for multiple (independent) requests that could have a different setup of that data.

Solution: move that data to the per-request struct held in the Curl_easy struct.
@bagder bagder self-assigned this Jun 15, 2020
bagder added a commit that referenced this issue Jun 15, 2020
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http: move request-specific header store to urldate from connectdata
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aee277b 
Since the connection can be used by many independent requests (using
HTTP/2 or HTTP/3), things like user-agent and other transfer-specific
data MUST NOT be kept connection oriented as it could lead to requests
getting the wrong string for their requests. This struct data was
lingering like this due to old HTTP1 legacy thinking where it didn't
mattered..

Fixes #5566
@bagder bagder mentioned this issue Jun 15, 2020
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@bagder bagder closed this in e15e513 Jun 15, 2020
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http: move request-specific header storage to Curl_easy from connectdata
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