Don't forward proto if we receive the header#131
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If we receive a header for X-Forwarded-For and we have the parameter forwardIP, we add the IP of this machine to the list of IPs. However for X-Forwarded-Proto it is not a list. We send the proto of the existing request (if forwardIP is enabled). This change honors the header if we receive it
dsmiley
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Feb 1, 2018
| String protoHeaderName = "X-Forwarded-Proto"; | ||
| String protoHeader = servletRequest.getScheme(); | ||
| String existingProtoHeader = servletRequest.getHeader(protoHeaderName); | ||
| if (existingProtoHeader != null) { |
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Looks fine. Please add a comment that this header is not a list.
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Can you confirm this PR is still valid? I can commit it. |
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Ping |
Author
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I'm sorry for the (VERY!) late reply. We use the modified code in a forked version, but we haven't keep up with most recent versions and we're moving away from the code that uses this library. |
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I understand; I'm a lazy steward here :-) |
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This change is a bit more controversial than the previous one. Feel free to decline if it doesn't suit.
When upgrading from version 1.7 to version 1.10, we found the X-Forwarded-Proto header was no longer being honoured when passing through the proxy. The header was being replaced.
For X-Forwarded-For, the behaviour was easier since we can add the IP to the list. However my understanding is that X-Forwarded-Proto it is not a list. We could disable forwardip, or just ignore current protocol if we have a header.