See discussion on #2015 for how this situation was discovered. For a
Caddyfile like this:
localhost {
...
}
:2015 {
...
}
Running Caddy like this:
caddy -host localhost
Produces two sites both defined as `localhost:2015` because the flag
changes the default host value to be `localhost`. This should be an
error since the sites are not distinct and it is confusing. It can also
cause issues with TLS handshakes loading the wrong cert, as the linked
discussion shows.
Fixes#1961
According to RFC 7231 and RFC 7230, there's
no reason a GET-Request can't have a body
(other than it possibly not being supported
by existing software). It's use is simply not
defined, and is left to the application.
- Expose the list of Caddy instances through caddy.Instances()
- Added arbitrary storage to caddy.Instance
- The cache of loaded certificates is no longer global; now scoped
per-instance, meaning upon reload (like SIGUSR1) the old cert cache
will be discarded entirely, whereas before, aggressively reloading
config that added and removed lots of sites would cause unnecessary
build-up in the cache over time.
- Key certificates in the cache by their SHA-256 hash instead of
by their names. This means certificates will not be duplicated in
memory (within each instance), making Caddy much more memory-efficient
for large-scale deployments with thousands of sites sharing certs.
- Perform name-to-certificate lookups scoped per caddytls.Config instead
of a single global lookup. This prevents certificates from stepping on
each other when they overlap in their names.
- Do not allow TLS configurations keyed by the same hostname to be
different; this now throws an error.
- Updated relevant tests, with a stark awareness that more tests are
needed.
- Change the NewContext function signature to include an *Instance.
- Strongly recommend (basically require) use of caddytls.NewConfig()
to create a new *caddytls.Config, to ensure pointers to the instance
certificate cache are initialized properly.
- Update the TLS-SNI challenge solver (even though TLS-SNI is disabled
currently on the CA side). Store temporary challenge cert in instance
cache, but do so directly by the ACME challenge name, not the hash.
Modified the getCertificate function to check the cache directly for
a name match if one isn't found otherwise. This will allow any
caddytls.Config to be able to help solve a TLS-SNI challenge, with one
extra side-effect that might actually be kind of interesting (and
useless): clients could send a certificate's hash as the SNI and
Caddy would be able to serve that certificate for the handshake.
- Do not attempt to match a "default" (random) certificate when SNI
is present but unrecognized; return no certificate so a TLS alert
happens instead.
- Store an Instance in the list of instances even while the instance
is still starting up (this allows access to the cert cache for
performing renewals at startup, etc). Will be removed from list again
if instance startup fails.
- Laid groundwork for ACMEv2 and Let's Encrypt wildcard support.
Server type plugins will need to be updated slightly to accommodate
minor adjustments to their API (like passing in an Instance). This
commit includes the changes for the HTTP server.
Certain Caddyfile configurations might error out with this change, if
they configured different TLS settings for the same hostname.
This change trades some complexity for other complexity, but ultimately
this new complexity is more correct and robust than earlier logic.
Fixes#1991Fixes#1994Fixes#1303
* First working mask
* IP Mask working with defaults and empty
* add tests for ipmask
* Store Mask as setup, some tidying, cleaner flow
* Prevent mask from running when directive not present
* use custom replacement to store masked ip
A default of true is risky when protecting assets by matching base path.
It's not obvious that protecting /foo/ will allow /Foo/ through, and if
accessing static files on a case-insensitive file system... that's no
good. So the default is now to be case-INsensitive when matching paths.
* Proxy can now use QUIC for upstream connections
Add HandshakeTimeout, change h2quic syntax
* Add setup and upstream test
Test QUIC proxy with actual h2quic instance
Use different port fo QUIC test server
Add quic host to CI config
Added testdata to vendor
Revert "Added testdata to vendor"
This reverts commit 959512282deed8623168d090e5ca5e5a7933019c.
* Use local testdata
(See EULA.) Personally-licensed official Caddy builds cannot remove
this header by configuration. The commercially-licensed builds of Caddy
don't have this header.
* Allow pushing multiple resources via Link header
* Add nopush test case
* Extract Link header parsing to separate function
* Parser regexp-free
* Remove dead code, thx gometalinter
* Redundant condition - won't happen
* Reduce duplication
* browse: Attempt to fix tests on Windows
* browse: Make tests verbose for debugging
* Moar debugging
* Trying path.Join instead
* browse: Just skip the tests for now
* browse: Remove debug prints
* templates: Execute template loaded by later middlewares
This is the beginning of an attempt to make the staticfiles file server
the only middleware that hits the disk and loads content. This may have
unknown implications. But the goal is to reduce duplication without
sacrificing performance. (We now call ServeContent here.)
This change loses about 15% of the req/sec of the old way of doing it,
but this way is arguably more correct since the file server is good at
serving static files; duplicating that logic in every middleware that
needs to hit the disk is not practical.
* httpserver: Introduce ResponseRecorder as per Tw's suggestions
It implements io.ReaderFrom and has some allocation-reducing
optimizations baked into it
* templates: Increase execution speed by ~10-15% after perf regression
By using httpserver.ResponseBuffer, we can reduce allocations and still
get what we want. It's a little tricky but it works so far.
* SIGUSR2 triggers graceful binary upgrades (spawns new process)
* Move some functions around, hopefully fixing Windows build
* Clean up a couple file closes and add links to useful debugging thread
* Use two underscores in upgrade env var
To help ensure uniqueness / avoid possible collisions
