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Fixes #4481
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* fastcgi: Fix a TODO, prevent zap using reflection for logging env
* Update modules/caddyhttp/reverseproxy/fastcgi/fastcgi.go
Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
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* reverseproxy: Adjust defaults, document defaults
Related to some of the issues in https://github.com/caddyserver/caddy/issues/4245, a complaint about the proxy transport defaults not being properly documented in https://caddy.community/t/default-values-for-directives/14254/6.
- Dug into the stdlib to find the actual defaults for some of the timeouts and buffer limits, documenting them in godoc so the JSON docs get them next release.
- Moved the keep-alive and dial-timeout defaults from `reverseproxy.go` to `httptransport.go`. It doesn't make sense to set defaults in the proxy, because then any time the transport is configured with non-defaults, the keep-alive and dial-timeout defaults are lost!
- Sped up the dial timeout from 10s to 3s, in practice it rarely makes sense to wait a whole 10s for dialing. A shorter timeout helps a lot with the load balancer retries, so using something lower helps with user experience.
* reverseproxy: Make keepalive interval configurable via Caddyfile
* fastcgi: DialTimeout default for fastcgi transport too
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* caddyhttp: Sanitize scheme and host on incoming requests
* reverseproxy: Sanitize the URL scheme and host before proxying
* Apply suggestions from code review
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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The question would only receive bad answers so it's better
to just say what the option actually does.
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Debug log is correct level for this
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From reading through the code, I think this code path is now obsoleted by the changes made in https://github.com/caddyserver/caddy/pull/4266.
Basically, `h.flushInterval()` will set the flush interval to `-1` if we're in a bi-directional stream, and the recent PR ensured that `h.copyResponse()` properly flushes headers immediately when the flush interval is non-zero. So now there should be no need to call Flush before calling `h.copyResponse()`.
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I went through the commits that touched stdlib's `reverseproxy.go` file, and copied over all the changes that are to code that was copied into Caddy.
The commits I pulled changes from:
- https://github.com/golang/go/commit/2cc347382f4df3fb40d8d81ec9331f0748b1c394
- https://github.com/golang/go/commit/a5cea062b305c8502bdc959c0eec279dbcd4391f
- https://github.com/golang/go/commit/ecdbffd4ec68b509998792f120868fec319de59b
- https://github.com/golang/go/commit/21898524f66c075d7cfb64a38f17684140e57675
-https://github.com/golang/go/commit/ca3c0df1f8e07337ba4048b191bf905118ebe251
- https://github.com/golang/go/commit/9c017ff30dd21bbdcdb11f39458d3944db530d7e
This may also fix https://github.com/caddyserver/caddy/issues/4247 because of the change to `copyResponse` to set `mlw.flushPending = true` right away.
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The fastcgi changes came from v1 which don't make sense in v2.
Fix comment about default value in reverse proxy keep alive.
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Also split the Caddyfile subdirective keepalive_idle_conns into two properties so the conns and conns_per_host can be set separately.
This is technically a breaking change, but probably anyone who this breaks already had a broken config anyway, and silently fixing it won't help them fix their configs.
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See golang/go#46313
Based on https://github.com/golang/go/commit/950fa11c4cb01a145bb07eeb167d90a1846061b3
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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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* 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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* 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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(#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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* 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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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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* fastcgi: Set PATH_INFO to file matcher remainder as fallback
* fastcgi: Avoid changing scriptName when not necessary
* Stylistic tweaks
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* fix(caddy): Avoid "operation was canceled" errors
- Also add error handling for StatusGatewayTimeout
* revert(caddy): Revert 504 handling
- This will potentially break load balancing and health checks
* Handle client cancellation as different error
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* reverseproxy: Add Caddyfile scheme shorthand for h2c
* reverseproxy: Use parentheses for condition
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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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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* reverseproxy: Enable error logging for connection upgrades
* reverseproxy: Change some of the error levels, unsugar
* Use unsugared log in one spot
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
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* add CookieHashSelection for session affinity
* add CookieHashSelection for session affinity
* register module
* reverse_proxy: Add and fix cookie lb_policy
* reverse_proxy: Manage hmac.write error on cookie hash selection
* reverse_proxy: fix some comments
* reverse_proxy: variable `cookieValue` is inside the else block
* reverse_proxy: Abstract duplicate nuanced logic of reservoir sampling into a function
* reverse_proxy: Set a default secret is indeed useless
* reverse_proxy: add configuration syntax for cookie lb_policy
* reverse_proxy: doc typo and improvement
Co-authored-by: utick <123liuqingdong@163.com>
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* implement default values for header directive
closes #3804
* remove `set_default` header op and rely on "require" handler instead
This has the following advantages over the previous attempt:
- It does not introduce a new operation for headers, but rather nicely
extends over an existing feature in the header handler.
- It removes the need to specify the header as "deferred" because it is
already implicitely deferred by the use of the require handler. This
should be less confusing to the user.
* add integration test for header directive in caddyfile
* bubble up errors when parsing caddyfile header directive
* don't export unnecessarily and don't canonicalize headers unnecessarily
* fix response headers not passed in blocks
* caddyfile: fix clash when using default header in block
Each header is now set in a separate handler so that it doesn't clash
with other headers set/added/deleted in the same block.
* caddyhttp: New idle_timeout default of 5m
* reverseproxy: fix random hangs on http/2 requests with server push (#3875)
see https://github.com/golang/go/issues/42534
* Refactor and cleanup with improvements
* More specific link
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
Co-authored-by: Денис Телюх <telyukh.denis@gmail.com>
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* fastcgi: Add timeouts support to Caddyfile adapter
* fastcgi: Use tabs instead of spaces
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