* If upstreams are all using same host but with different ports
ie:
foobar:4001
foobar:4002
foobar:4003
...
Because fnv-1a has not a good enough avalanche effect
Then the hostByHashing result is not well balanced over
all upstreams
As last byte FNV input tend to affect few bits, the idea is to change
the concatenation order between the key and the upstream strings
So the upstream last byte have more impact on hash diffusion
* reverseproxy: Mask the WS close message when we're the client
* weakrand
* Bump golangci-lint version so path ignores work on Windows
* gofmt
* ugh, gofmt everything, I guess
* fileserver: Reject ADS and short name paths
* caddyhttp: Trim trailing space and dot on Windows
Windows ignores trailing dots and spaces in filenames.
* Fix test
* Adjust path filters
* Revert Windows test
* Actually revert the test
* Just check for colons
* httpcaddyfile: Skip some logic if auto_https off
* Try removing this check altogether...
* Refine test timeouts slightly, sigh
* caddyhttp: Assume udp for unrecognized network type
Seems like the reasonable thing to do if a plugin registers its own
network type.
* Add comment to document my lack of knowledge
* Clean up and prepare to merge
Add comments to try to explain what happened
PR #4066 added a dark color scheme to the file_server browse template.
PR #4356 later set the links for the `:visited` pseudo-class, but did
not set anything for the dark mode, resulting in poor contrast. I
selected some new colors by feel.
This commit also adds an `a:visited:hover` for both, to go along with
the normal blue hover colors.
It was not accurate. Placeholders could be used in outputs that are
defined in the same mapping as long as that placeholder does not do the
same.
A more general solution would be to detect it at run-time in the
replacer directly, but that's a bit tedious
and will require allocations I think.
A better implementation of this check could still be done, but I don't
know if it would always be accurate. Could be a "best-effort" thing?
But I've also never heard of an actual case where someone configured
infinite recursion...
* core: Refactor, improve listener logic
Deprecate:
- caddy.Listen
- caddy.ListenTimeout
- caddy.ListenPacket
Prefer caddy.NetworkAddress.Listen() instead.
Change:
- caddy.ListenQUIC (hopefully to remove later)
- caddy.ListenerFunc signature (add context and ListenConfig)
- Don't emit Alt-Svc header advertising h3 over HTTP/3
- Use quic.ListenEarly instead of quic.ListenEarlyAddr; this gives us
more flexibility (e.g. possibility of HTTP/3 over UDS) but also
introduces a new issue:
https://github.com/lucas-clemente/quic-go/issues/3560#issuecomment-1258959608
- Unlink unix socket before and after use
* Appease the linter
* Keep ListenAll
e338648fed introduced multiple upstream
addresses. A comment notes that mixing schemes isn't supported and
therefore the first valid scheme is supposed to be used.
Fixes setting the first scheme.
fixes#5087
* caddyhttp: Honor grace period in background
This avoids blocking during config reloads.
* Don't quit process until servers shut down
* Make tests more likely to pass on fast CI (#5045)
* caddyhttp: Even faster shutdowns
Simultaneously shut down all HTTP servers, rather than one at a time.
In practice there usually won't be more than 1 that lingers. But this
code ensures that they all Shutdown() in their own goroutine
and then we wait for them at the end (if exiting).
We also wait for them to start up so we can be fairly confident the
shutdowns have begun; i.e. old servers no longer
accepting new connections.
* Fix comment typo
* Pull functions out of loop, for readability
Ideally I'd just remove the parameter to caddy.Context.Logger(), but
this would break most Caddy plugins.
Instead, I'm making it variadic and marking it as partially deprecated.
In the future, I might completely remove the parameter once most
plugins have updated.
* fix encode handler header manipulation
also avoid implementing ReadFrom because it breaks when io.Copied to directly
* strconv.Itoa should be tried as a last resort
WriteHeader during Close
* feat: Multiple 'to' upstreams in reverse-proxy cmd
* Repeat --to for multiple upstreams, rather than comma-separating in a single flag
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* caddyhttp: Explicitly disallow multiple regexp matchers
Fix#5028
Since the matchers would overwrite eachother, we should error out to tell the user their config doesn't make sense.
* Update modules/caddyhttp/matchers.go
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Doing so allows for splice/sendfile optimizations when available.
Fixes#4731
Co-authored-by: flga <flga@users.noreply.github.com>
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
* fileserver: Support glob expansion in file matcher
* Fix tests
* Fix bugs and tests
* Attempt Windows fix, sigh
* debug Windows, WIP
* Continue debugging Windows
* Another attempt at Windows
* Plz Windows
* Cmon...
* Clean up, hope I didn't break anything
* caddyhttp: Support sending HTTP 103 Early Hints
This adds support for early hints in the static_response handler.
* caddyhttp: Don't record 1xx responses
* reverseproxy: Close hijacked conns on reload/quit
We also send a Close control message to both ends of
WebSocket connections. I have tested this many times in
my dev environment with consistent success, although
the variety of scenarios was limited.
* Oops... actually call Close() this time
* CloseMessage --> closeMessage
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Use httpguts, duh
* Use map instead of sync.Map
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* core: Refactor listeners; use SO_REUSEPORT on Unix
Just an experiment for now
* Fix lint by logging error
* TCP Keepalive configuration (#4865)
* initial attempt at TCP Keepalive configuration
* core: implement tcp-keepalive for linux
* move canSetKeepAlive interface
* Godoc for keepalive server parameter
* handle return values
* log keepalive errors
* Clean up after bad merge
* Merge in pluggable network types
From 1edc1a45e3
* Slight refactor, fix from recent merge conflict
Co-authored-by: Karmanyaah Malhotra <karmanyaah.gh@malhotra.cc>
* break up code and use lazy reading and pool bufio.Writer
* close underlying connection when operation failed
* allocate bufWriter and streamWriter only once
* refactor record writing
* rebase from master
* handle err
* Fix type assertion
Also reduce some duplication
* Refactor client and clientCloser for logging
Should reduce allocations
* Minor cosmetic adjustments; apply Apache license
* Appease the linter
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
* added the httpError function into the document
* Update templates.go
* Update templates.go
* Fix gofmt
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Until now, the vars matcher has unintentionally lacked parity with the
map directive: the destination placeholders of the map directive would
be expressed as placeholders, i.e. {foo}. But the vars matcher would
not use { }: vars foo value
This looked weird, and was confusing, since it implied that the key
could be dynamic, which doesn't seem helpful here.
I think this is a proper bug fix, since we're not used to accessing
placeholders literally without { } in the Caddyfile.
* core: Plugins can register listener networks
This can be useful for custom listeners.
This feature/API is experimental and may change!
* caddyhttp: Expose server listeners
This allows users to, for example, get upstreams from multiple SRV
endpoints in order (such as primary and secondary clusters).
Also, gofmt went to town on the comments, sigh
* 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.)
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.
* reverseproxy: Implement retry count, alternative to try_duration
* Add Caddyfile support for `retry_match`
* Refactor to deduplicate matcher parsing logic
* Fix lint
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.
* 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: 3c9806ccb6
* 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>
* 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: 3c9806ccb6
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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.
* 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
* reverseproxy: Sync up `handleUpgradeResponse` with stdlib
I had left this as a TODO for when we bump to minimum 1.17, but I should've realized it was under `internal` so it couldn't be used directly.
Copied the functions we needed for parity. Hopefully this is ok!
* Add tests and fix godoc comments
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
