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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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* 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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* 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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* caddyhttp: Implement better logic for inserting the HTTP->HTTPS redirs
* caddyhttp: Add integration test
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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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* 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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* 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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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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Ref: https://caddy.community/t/acme-server-implementation/11256/
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If `tls <email>` is used, we should apply that to all applicable default issuers, not drop them. This refactoring applies implicit ACME issuer settings from the tls directive to all default ACME issuers, like ZeroSSL.
We also consolidate some annoying logic and improve config validity checks.
Ref: https://caddy.community/t/error-obtaining-certificate-after-caddy-restart/11335/8
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* caddyhttp: Implement handler abort; new 'abort' directive (close #3871)
* Move abort directive ordering; clean up redirects
Seems logical for the end-all of handlers to go at the... end.
The Connection header no longer needs to be set there, since Close is
true, and the static_response handler now does that.
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This reverts commit 0bf2046da7f2f5bf1b7d9fa055ae28de9a06ddaf.
No actual use case.
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The httpError function isn't particularly useful until https://github.com/golang/go/issues/34201 is fixed in the Go standard lib.
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An experimental feature, let's see if it's useful.
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Prevent information loss, i.e. the encoded form that was sent by the
client, when using URL strip/replace.
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Eliminates a fair amount of repeated code
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* reverse_proxy: 1.health check headers can be set through Caddyfile using health_headers directive; 2.health check header host can be set properly
* reverse_proxy:
replace example with syntax definition
inline health_headers directive parse function
* bugfix: change caddyfile_adapt testcase file from space to tab
* reverseproxy: modify health_header value document as optional and add more test cases
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* caddyfile: Introduce basic linting and fmt check
This will help encourage people to keep their Caddyfiles tidy.
* Remove unrelated tests
I am not sure that testing the output of warnings here is quite the
right idea; these tests are just for syntax and parsing success.
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At some point we changed how paths are represented down the function calls of browse listings and forgot to update the canGoUp logic. I think this is right? It's simpler now.
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The remote_ip matcher was reading the X-Forwarded-For header by default, but this behavior was not documented in anything that was released. This is also a less secure default, as it is trivially easy to spoof request headers. Reading IPs from that header should be optional, and it should not be the default.
This is technically a breaking change, but anyone relying on the undocumented behavior was just doing so by coincidence/luck up to this point since it was never in any released documentation. We'll still add a mention in the release notes about this.
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Refactor redirect route creation into own function.
Improve condition for appending port.
Fixes a bug manifested through new test case:
TestAutoHTTPRedirectsWithHTTPListenerFirstInAddresses
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