Special characters (French characters) in the request payload will be encoded into '?' character

[cbabey]

Description

As per the internal discussion[1][2], I have created this patch-type issue to fix this character encoding issue.

When building the message payload (content-type:multipart/form-data) at the gateway server, the French characters(é) in the request payload will be encoded into ‘?’ characters.

Client to Gateway request :

--header 'Content-Type: multipart/form-data' \
--form 'filename="sample**é**t1 **à** sample.msg"' \
--form 'typedocument="F30"' \

Gateway to backend Server :

filename="EN550RQ_V?hicule ? vendre_Bois Cholet .msg"

Steps to Reproduce

1. Start the APIM-2.6.0 server (latest WUM)
2. Create the mock backend API which except the form-data payload (you can use the created mock api endpoint[1] )
3. Create the API by adding the attached custom sequence which contains the content-aware mediator
4. Invoke the API using the request payload (content-type:multipart/form-data) with french characters (--form 'filename="sampleét1 à sample.msg"' )

[1] https://webhook.site/#!/8088b9fb-98b3-466c-a34a-1b834e20becc/09200e1a-44eb-47e9-88ba-f763a05615fa/1

Affected Component

APIM

Version

2.6.0

Environment Details (with versions)

No response

Relevant Log Output

No response

Related Issues

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Suggested Labels

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[hisanhunais]

Public fix done via wso2/wso2-axis2#249