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See golang/go#46313
Based on https://github.com/golang/go/commit/950fa11c4cb01a145bb07eeb167d90a1846061b3
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* logging: Implement dial timeout for net writer (fix #4083)
* Limit how often redials are attempted
This should cause dial blocking to occur only once every 10 seconds at most, but it also means the logger connection might be down for up to 10 seconds after it comes back online; oh well. We shouldn't block for DialTimeout at every single log emission.
* Clarify offline behavior
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Turns out this was an oversight, we assumed we could use `{http.response.header.*}` but that doesn't work because those are grabbed from the response writer, and we haven't copied any headers into the response writer yet.
So the fix is to set all the response headers into the replacer at a new namespace before running the handlers.
This adds the `{http.reverse_proxy.header.*}` replacer.
See https://caddy.community/t/empty-http-response-header-x-accel-redirect/12447
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* caddyfile(formatter): fix nesting not decrementing
This is an extremely weird edge-case where if you had a environment variable {}
on one line, a comment on the next line, and the closing of the block on the
following line; the rest of the Caddyfile would be indented further than it
should've been.
ref; https://github.com/matthewpi/vscode-caddyfile-support/issues/13
* run gofmt
* fmt: better way of handling edge case
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Followup to #4150, #4151 /cc @ueffel @polarathene
After a bit of discussion with @mholt, we decided to remove `prefer` as a subdirective and just go with using the order implicitly always. Simpler config, simpler docs, etc.
Effectively changes 7776471 and reverts a small part of f35a7fa.
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(#4151)
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Fixes #3922
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* caddyhttp: Fix fallback for the error handler chain
The fix I went with in the end (after realizing some mistaken assumptions in #4131) is to just make the routes fall back to errorEmptyHandler instead of the non-error empty handler, if Terminal is true, making the routes error-aware. Ultimately this was probably just an oversight when errors was implemented at some point in the early betas of v2.
See https://caddy.community/t/problem-with-basicauth-handle-errors/12243/9 for context.
* Revert "caddyhttp: Fix fallback for the error handler chain"
This reverts commit 95b6ac44a6122d3ca5513a13bbc723cd5f4785f8.
* caddyhttp: Fix via `routes.go`
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* fileserver: Fix `file` matcher with empty `try_files`
Fixes https://github.com/caddyserver/caddy/issues/4146
If `TryFiles` is empty, we fill it with `r.URL.Path`. In this case, this is `/`. Then later, in `prepareFilePath()`, we run the replacer (which turns `{path}` into `/` at that point) but `file` remains the original value (and the placeholder is still the placeholder there).
So then `strings.HasSuffix(file, "/")` will be `false` for the placeholder, but `true` for the empty `TryFiles` codepath, because `file` was `/` due to being set to the actual request value beforehand.
This means that `suffix` becomes `//` in that case, so after `sanitizedPathJoin`, it becomes `./`, so `strictFileExists`'s `strings.HasSuffix(file, separator)` codepath will return true.
I think we should change the `m.TryFiles == nil` codepath to `m.TryFiles = []string{"{http.request.uri.path}"}` for consistency. (And maybe consider hoisting this to `Provision` cause there's no point doing this on every request). I don't think this "optimization" of directly using `r.URL.Path` is so valuable, cause it causes this edgecase with directories.
* Update modules/caddyhttp/fileserver/matcher.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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* reverseproxy: Add `handle_response` blocks to `reverse_proxy` (#3710)
* reverseproxy: complete handle_response test
* reverseproxy: Change handle_response matchers to use named matchers
reverseproxy: Add support for changing status code
* fastcgi: Remove obsolete TODO
We already have d.Err("transport already specified") in the reverse_proxy parsing code which covers this case
* reverseproxy: Fix support for "4xx" type status codes
* Apply suggestions from code review
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* caddyhttp: Reorganize response matchers
* reverseproxy: Reintroduce caddyfile.Unmarshaler
* reverseproxy: Add comment mentioning Finalize should be called
Co-authored-by: Maxime Soulé <btik-git@scoubidou.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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Below is the report using `benchstat` and cmd:
`go test -run=BenchmarkHeaderREMatcher -bench=BenchmarkHeaderREMatcher -benchmem -count=10`
```
name old time/op new time/op delta
HeaderREMatcher-16 869ns ± 1% 658ns ± 0% -24.29% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
HeaderREMatcher-16 144B ± 0% 112B ± 0% -22.22% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
HeaderREMatcher-16 7.00 ± 0% 5.00 ± 0% -28.57% (p=0.000 n=10+10)
```
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browse` (#4093)
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* caddytls: Implement remote IP connection matcher
* Implement IP range negation
If both Ranges and NotRanges are specified, both must match.
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* caddyhttp: reverseproxy: fix hash selection policy
Fixes: #4135
Test: go test './...' -count=1
* caddyhttp: reverseproxy: add test to catch #4135
If you revert the last commit, the test will fail.
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An idea that came up in https://caddy.community/t/save-internally-issued-wildcard-certificate-in-consul/11740, this a simple module that might be useful for anyone who uses storage modules that aren't filesystem, to let them load certs/keys externally issued for use by Caddy.
Bit goofy, since we need to fetch the certmagic.Storage during provisioning, it needs a wrapping struct instead of just being an array like `load_files`.
Future work might involve adding Caddyfile support via a subdirective of the `tls` directive maybe?
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* caddyhttp: Implement better logic for inserting the HTTP->HTTPS redirs
* caddyhttp: Add integration test
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Can drastically reduce costs on storage backends where scans are expensive.
Also reduced default interval to 24h.
See https://github.com/silinternational/certmagic-storage-dynamodb/issues/18
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After reading a question about the `handle_response` feature of `reverse_proxy`, I realized that we didn't have a way of serving an arbitrary file with a status code other than 200. This is an issue in situations where you want to serve a custom error page in routes that are not errors, like the aforementioned `handle_response`, where you may want to retain the status code returned by the proxy but write a response with content from a file.
This feature is super simple, basically if a status code is configured (can be a status code number, or a placeholder string) then that status will be written out before serving the file - if we write the status code first, then the stdlib won't write its own (only the first HTTP status header wins).
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* encode: implement prefer setting
* encode: minimum_length configurable via caddyfile
* encode: configurable content-types which to encode
* file_server: support precompressed files
* encode: use ReponseMatcher for conditional encoding of content
* linting error & documentation of encode.PrecompressedOrder
* encode: allow just one response matcher
also change the namespace of the encoders back, I accidently changed to precompressed >.>
default matchers include a * to match to any charset, that may be appended
* rounding of the PR
* added integration tests for new caddyfile directives
* improved various doc strings (punctuation and typos)
* added json tag for file_server precompress order and encode matcher
* file_server: add vary header, remove accept-ranges when serving precompressed files
* encode: move Suffix implementation to precompressed modules
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(#4050)
* reverseproxy: Implement health_uri, replaces health_path, supports query
Also fixes a bug with `health_status` Caddyfile parsing , it would always only take the first character of the status code even if it didn't end with "xx".
* reverseproxy: Rename to URI, named logger, warn in Provision (for JSON)
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golang.org/x/crypto/ssh/terminal is deprecated in favor of golang.org/x/term
See https://github.com/caddyserver/caddy/pull/4073/checks?check_run_id=2152150495
Error: SA1019: package golang.org/x/crypto/ssh/terminal is deprecated: this package moved to golang.org/x/term. (staticcheck)
See https://github.com/caddyserver/caddy/pull/4073/checks?check_run_id=2152228516
Error: SA1019: package golang.org/x/crypto/ssh/terminal is deprecated: this package moved to golang.org/x/term. (staticcheck)
Test: go test -count=1 './...'
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* Add dark color scheme media query
* Theme search box, make everything less contrasting
* Further contrast tweaks
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* httpcaddyfile: Add `error` directive for the existing handler
* httpcaddyfile: Move `error` to the end of the order
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This filter is intended to be useful in scenarios where you may want to
redact a value with a static string, giving you information that the
field did previously exist and was present, but not revealing the value
itself in the logs.
This was inspired by work on adding more complete support for removing
sensitive values from logs [1]. An example use case would be the
Authorization header in request log output, for which the value should
usually not be logged, but it may be quite useful for debugging to
confirm that the header was present in the request.
[1] https://github.com/caddyserver/caddy/issues/3958
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* Replace placeholders with regex groups
* using Matcher methods
* test added
* linting fix
* Revert "linting fix"
This reverts commit cafd7296f43639bbcd2601bea79a47f60763a200.
* Revert "test added"
This reverts commit 3a76cc7b0bc5dcef15ca5c8ec22efcd4067d484c.
* Revert "using Matcher methods"
This reverts commit cc34337b8ebb61d40ec343cee0fc225a694d3db6.
* tests added
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https://caddy.community/t/collapsing-multiple-forward-slashes-in-path-only/11626
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See https://caddy.community/t/setting-up-a-caddy-pki-based-on-a-windows-
root-ca-was-getting-pki-config/11616/7
Also improved a godoc comment in the caddytls package.
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* reverseproxy: Add duration/latency placeholders (close #4012) (and #2268)
Adds 4 placeholders, one is actually outside reverse proxy though:
{http.request.duration} is how long since the server decoded the HTTP request (headers).
{http.reverse_proxy.upstream.latency} is how long it took a proxy upstream to write the response header.
{http.reverse_proxy.upstream.duration} is total time proxying to the upstream, including writing response body to client.
{http.reverse_proxy.duration} is total time spent proxying, including selecting an upstream and retries.
Obviously, most of these are only useful at the end of a request, like when writing response headers or logs.
See also: https://caddy.community/t/any-equivalent-of-request-time-and-upstream-header-time-from-nginx/11418
* Add new placeholders to documentation
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I'm pretty sure this fixes a bug when the default email is used...
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Proxy response bodies can now be buffered, and the size of the request body and
response body buffer can be limited. Any remaining content that doesn't fit in the
buffer will remain on the wire until it can be read; i.e. bodies are not truncated,
even if the buffer is not big enough.
This fulfills a customer requirement. This was made possible by their sponsorship!
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The HTTP Caddyfile adapter can now configure the PKI app, and the acme_server directive can now be used to specify a custom CA used for issuing certificates. More customization options can follow later as needed.
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Ref: https://caddy.community/t/acme-server-implementation/11256/
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