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* fileserver: Support virtual file systems (close #3720)
This change replaces the hard-coded use of os.Open() and os.Stat() with
the use of the new (Go 1.16) io/fs APIs, enabling virtual file systems.
It introduces a new module namespace, caddy.fs, for such file systems.
Also improve documentation for the file server. I realized it was one of
the first modules written for Caddy 2, and the docs hadn't really been
updated since!
* Virtualize FS for file matcher; minor tweaks
* Fix tests and rename dirFS -> osFS
(Since we do not use a root directory, it is dynamic.)
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Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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Use of non-cryptographic random numbers in the load balancing
is intentional.
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Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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Follows up #4915
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Hahaha this is the ultimate "I have no idea what I'm doing" commit but it
compiles and the tests pass and I declare victory!
... probably broke something, should be tested more.
It is nice that the protobuf dependency becomes indirect now.
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* reverseproxy: Implement retry count, alternative to try_duration
* Add Caddyfile support for `retry_match`
* Refactor to deduplicate matcher parsing logic
* Fix lint
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Only parse query string once
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Turns out the NTLM transport uses it. Oops.
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See https://caddy.community/t/using-forward-auth-and-writing-my-own-authenticator-in-php/16410, apparently it didn't work when `copy_headers` wasn't used. This is because we were skipping adding a handler to the routes in the "good response handler", but this causes the logic in `reverseproxy.go` to ignore the response handler since it's empty. Instead, we can just always put in the `header` handler, even with an empty `Set` operation, it's just a no-op, but it fixes that condition in the proxy code.
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Co-authored-by: Francis Lavoie <lavofr@gmail.com>
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* reverseproxy: Fix panic when TLS is not configured
* Refactor and simplify setScheme
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* Make reverse proxy TLS server name replaceable for SNI upstreams.
* Reverted previous TLS server name replacement, and implemented thread safe version.
* Move TLS servername replacement into it's own function
* Moved SNI servername replacement into httptransport.
* Solve issue when dynamic upstreams use wrong protocol upstream.
* Revert previous commit.
Old commit was: Solve issue when dynamic upstreams use wrong protocol upstream.
Id: 3c9806ccb63e66bdcac8e1ed4520c9d135cb011d
* Added SkipTLSPorts option to http transport.
* Fix typo in test config file.
* Rename config option as suggested by Matt
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* Update code to match renamed config option.
* Fix typo in config option name.
* Fix another typo that I missed.
* Tests not completing because of apparent wrong ordering of options.
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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* Make reverse proxy TLS server name replaceable for SNI upstreams.
* Reverted previous TLS server name replacement, and implemented thread safe version.
* Move TLS servername replacement into it's own function
* Moved SNI servername replacement into httptransport.
* Solve issue when dynamic upstreams use wrong protocol upstream.
* Revert previous commit.
Old commit was: Solve issue when dynamic upstreams use wrong protocol upstream.
Id: 3c9806ccb63e66bdcac8e1ed4520c9d135cb011d
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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* Add renegotiation option in reverseproxy tls client
* Update modules/caddyhttp/reverseproxy/httptransport.go
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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* reverseproxy: Correct the `tls_server_name` docs
* Update modules/caddyhttp/reverseproxy/httptransport.go
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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Closes #4823
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In v2.5.0, upstream health was fixed such that whether an upstream is
considered healthy or not is mostly up to each individual handler's
config. Since "healthy" is an opinion, it is not a global value.
I unintentionally left in the "healthy" field in the API endpoint for
checking upstreams, and it is now misleading (see #4792).
However, num_requests and fails remains, so health can be determined by
the API client, rather than having it be opaquely (and unhelpfully)
determined for the client.
If we do restore this value later on, it'd need to be replicated once
per reverse_proxy handler according to their individual configs.
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The fix for 4822 is the change at the top of the file, and
4779's fix is toward the bottom of the file.
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added flag --internal-certs
when set, for non-local domains the internal CA will be used for cert generation
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Co-authored-by: Francis Lavoie <lavofr@gmail.com>
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Context: https://caddy.community/t/caddy-2-5-dynamic-upstreams-and-consul-srv-dns/15839
I realized it probably makes sense to allow `:53` to be omitted, since it's the default port for DNS.
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* Add custom template function registration
* Rename TemplateFunctions to CustomFunctions
* Add documentation
* Document CustomFunctions interface
* Preallocate custom functions map list
* Fix interface name in error message
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* reverseproxy: Improve hashing LB policies with HRW
Previously, if a list of upstreams changed, hash-based LB policies
would be greatly affected because the hash relied on the position of
upstreams in the pool. Highest Random Weight or "rendezvous" hashing
is apparently robust to pool changes. It runs in O(n) instead of
O(log n), but n is very small usually.
* Fix bug and update tests
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