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* use gofmput to format code
* use gci to format imports
* reconfigure gci
* linter autofixes
* rearrange imports a little
* export GOOS=windows golangci-lint run ./... --fix
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* cmd: fix cli when admin endpoint uses new unix socket permission format
Fixes a bug where the following Caddyfile
```Caddyfile
{
admin unix/admin.sock|0660
}
```
and `caddy reload --config Caddyfile`
would throw the following error instead of reloading it:
```
INFO using provided configuration {"config_file": "Caddyfile", "config_adapter": ""}
Error: sending configuration to instance: performing request: Post "http://127.0.0.1/load": dial unix admin.sock|0660: connect: no such file or directory
[ERROR] exit status 1
```
---
This bug also affected `caddy start` and `caddy stop`.
* Move splitter function to internal
---------
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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because those aren't real paths on the filesystem and thus can't be `chmod`ed
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* core: Add optional unix socket file permissions
This commit also changes the default unix socket file permissions to `u=w,g=,o=` (octal: `0200`).
It used to default to the shell's umask (usually `u=rwx,g=rx,o=rx`, octal: `0755`).
`/run/caddy.sock` -> `/run/caddy.sock` with `0200` default perms
`/run/caddy.sock|0222` -> `/run/caddy.sock` with `0222` perms
`|` instead of `:` is used as a separator, to account for the `:` in Windows drive letters (e.g. `C:\absolute\path.sock`)
Fun fact:
The old unix(7) man page (pre Jun 2016) stated a socket needs both read and write perms.
Turns out, only write perms are needed.
Corrected in https://github.com/mkerrisk/man-pages/commit/7578ea2f85b272363d22680d69e7d32f0b59c83b
Despite this, most implementations still default to read+write to this date.
* Add cases with Windows paths to test
* Require write perms for the owning user
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* fix http3 outdated certificates after config reload
* delegate quic tls GetConfigForClient to another struct.
* change type and method names
fix lint
---------
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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* acmeserver: Configurable `resolvers`, fix smallstep deprecations
* Improve default net/port
* Update proxy resolvers parsing to use the new function
* Update listeners.go
Co-authored-by: itsxaos <33079230+itsxaos@users.noreply.github.com>
---------
Co-authored-by: itsxaos <33079230+itsxaos@users.noreply.github.com>
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* added some tests for parseUpstreamDialAddress
Test 4 fails because it produces "[[::1]]:80" instead of "[::1]:80"
* support absolute windows path in unix reverse proxy address
* make IsUnixNetwork public, support +h2c and reuse it
* add new tests
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Reported on commit e3e8aabbcf65d37516bb97f9dc0f77df52f8cf55
Abused this change in some bash for loops to rapidly reload config
while making requests and didn't observe any memory or resource leaks.
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* 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
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* 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 1edc1a45e3aee1f7d86b68c3ddaf2fd16ba8ab73
* Slight refactor, fix from recent merge conflict
Co-authored-by: Karmanyaah Malhotra <karmanyaah.gh@malhotra.cc>
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* 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
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Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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Previously, our "duplicate key in server block" logic was flawed because
it did not account for the site's bind address. We defer this check to
when the listener addresses have been assigned, but before we commit
a server block to its listener.
Also refined how network address parsing and joining works, which was
necessary for a less convoluted fix.
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* explain cryptic unix socket listener error related to process kill
https://github.com/caddyserver/caddy/pull/4533
* less ambiguous wording: clean up -> delete
* shorten error message explanation
* link back to pull request in comment for later archeaology
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When this listener code was first written, UsagePool didn't exist. We
can simplify much of the wrapped listener logic by utilizing UsagePool.
This also fixes a bug where new servers were able to clear deadlines
set by old servers, even if the old server didn't get booted out of its
Accept() call yet. And with the deadline cleared, they never would.
(Sometimes. Based on reports and difficulty of reproducing the bug,
this behavior was extremely rare.) I don't know why that happened
exactly, maybe some polling mechanism in the kernel and if the timings
worked out just wrong it would expose the bug.
Anyway, now we ensure that only the closer that set the deadline is the
same one that clears it, ensuring that old servers always return out of
Accept(), because the deadline doesn't get cleared until they do.
Of course, all this hinges on the hope that my suspicions in the middle
of the night are correct and that kernels work the way I think they do
in my head.
Also minor enhancement to UsagePool where if a value errors upon
construction (a very real possibility with listeners), it is removed from
the pool. Not 100% sure the sync logic is correct there, or maybe we
don't have to even put it in the pool until after construction, but it's
subtle either way and I think this is safe... right?
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Supersedes #3999
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* ci: Use golangci's github action for linting
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix most of the staticcheck lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the prealloc lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the misspell lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the varcheck lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the errcheck lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the bodyclose lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the deadcode lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the unused lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the gosec lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the gosimple lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the ineffassign lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Fix the staticcheck lint errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Revert the misspell change, use a neutral English
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Remove broken golangci-lint CI job
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Re-add errantly-removed weakrand initialization
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* don't break the loop and return
* Removing extra handling for null rootKey
* unignore RegisterModule/RegisterAdapter
Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
* single-line log message
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* Fix lint after a1808b0dbf209c615e438a496d257ce5e3acdce2 was merged
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Revert ticker change, ignore it instead
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Ignore some of the write errors
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Remove blank line
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Use lifetime
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* close immediately
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* Preallocate configVals
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
* Update modules/caddytls/distributedstek/distributedstek.go
Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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To clarify, listening on wildcard interfaces is NOT the default and
should only be done under certain circumstances and when you know
what you're doing. Emits a warning in the log.
Fixes https://github.com/caddyserver/caddy-docker/issues/71
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With a simple heuristic for loopback addresses, we can enable this by
default without adding unnecessary inconvenience.
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Wrapping listeners is useful for composing custom behavior related
to accepting, closing, reading/writing connections (etc) below the
application layer; for example, the PROXY protocol.
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* v2: housekeeping: update tools
* v2: housekeeping: adhere to US locale in spelling
* v2: housekeeping: simplify code
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See https://caddy.community/t/caddy-v2-php-fpm-502-error/6571?u=matt
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* fix OOM issue caught by fuzzing
* use ParsedAddress as the struct name for the result of ParseNetworkAddress
* simplify code using the ParsedAddress type
* minor cleanups
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First evidenced in #2658, listener deadlines would sometimes be set
after clearing them, resulting in endless i/o timeout errors, which
leave all requests hanging. This bug is fixed by synchronizing the
calls to SetDeadline: when Close() is called, the deadline is first
set to a time in the past, and the lock is released only after the
deadline is set, so when the other servers break out of their Accept()
calls, they will clear the deadline *after* it was set. Before, the
clearing could sometimes come before the set, which meant that it was
left in a timeout state indefinitely.
This may not yet be a perfect solution -- ideally, the setting and
clearing of the deadline would happen exactly once per underlying
listener, not once per fakeCloseListener, but in rigorous testing with
these changes (comprising tens of thousands of config reloads), I was
able to verify that no race condition is manifest.
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This PR enables the use of placeholders in an upstream's Dial address.
A Dial address must represent precisely one socket after replacements.
See also #998 and #1639.
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* Begin WIP integration of HTTP/3 support
* http3: Set actual Handler, make fakeClosePacketConn type for UDP sockets
Also use latest quic-go for ALPN fix
* Manually keep track of and close HTTP/3 listeners
* Update quic-go after working through some http3 bugs
* Fix go mod
* Make http3 optional for now
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My goodness that was complicated
Blessed be request.Context
Sort of
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Removes the version from the package name
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