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path: root/modules/caddyhttp/reverseproxy
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2022-03-07fastcgi: Protect against requests with null bytes in the path (#4614)Francis Lavoie
2022-03-06reverseproxy: Dynamic upstreams (with SRV and A/AAAA support) (#4470)Matt Holt
* reverseproxy: Begin refactor to enable dynamic upstreams Streamed here: https://www.youtube.com/watch?v=hj7yzXb11jU * Implement SRV and A/AAA upstream sources Also get upstreams at every retry loop iteration instead of just once before the loop. See #4442. * Minor tweaks from review * Limit size of upstreams caches * Add doc notes deprecating LookupSRV * Provision dynamic upstreams Still WIP, preparing to preserve health checker functionality * Rejigger health checks Move active health check results into handler-specific Upstreams. Improve documentation regarding health checks and upstreams. * Deprecation notice * Add Caddyfile support, use `caddy.Duration` * Interface guards * Implement custom resolvers, add resolvers to http transport Caddyfile * SRV: fix Caddyfile `name` inline arg, remove proto condition * Use pointer receiver * Add debug logs Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2022-03-06reverseproxy: Implement trusted proxies for `X-Forwarded-*` headers (#4507)Francis Lavoie
2022-03-05reverseproxy: Refactor dial address parsing, augment command parsing (#4616)Francis Lavoie
2022-03-03reverseproxy: Make shallow-ish clone of the request (#4551)Francis Lavoie
* reverseproxy: Make shallow-ish clone of the request * Refactor request cloning into separate function Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
2022-03-02fastcgi: Set SERVER_PORT to 80 or 443 depending on scheme (#4572)ttys3
2022-03-01reverseproxy: Move status replacement intercept to `replace_status` (#4300)Francis Lavoie
2022-02-01reverseproxy: Avoid returning a `nil` error during GetClientCertificate (#4550)Francis Lavoie
2022-01-19Improve the reverse-proxy CLI --to flag help message (#4535)Vojtech Vitek
2022-01-04admin, reverseproxy: Stop timers if canceled to avoid goroutine leak (#4482)Денис Телюх
2021-12-17reverseproxy: Fix incorrect `health_headers` Caddyfile parsing (#4485)Francis Lavoie
Fixes #4481
2021-12-02caddyhttp: Make logging of credential headers opt-in (#4438)Francis Lavoie
2021-12-02fastcgi: Fix a TODO, prevent zap using reflection for logging env (#4437)Francis Lavoie
* 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>
2021-11-24reverseproxy: Adjust defaults, document defaults (#4436)Francis Lavoie
* 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
2021-10-26reverseproxy: Sanitize scheme and host on incoming requests (#4237)Francis Lavoie
* 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>
2021-10-18reverseproxy: Prevent copying the response if a response handler ran (#4388)Francis Lavoie
2021-10-11caddyhttp: reverseproxy: clarify warning for -insecure (#4379)Simão Gomes Viana
The question would only receive bad answers so it's better to just say what the option actually does.
2021-09-29Move from deprecated ioutil to os and io packages (#4364)KallyDev
2021-09-27Revert 3336faf2 (close #4360)Matthew Holt
Debug log is correct level for this
2021-09-24reverseproxy: Log error at error level (fix #4360)Matthew Holt
2021-09-17fastcgi: Implement `try_files` override in Caddyfile directive (#4347)Francis Lavoie
2021-09-11fastcgi: Fix Caddyfile parsing when `handle_response` is used (#4342)Francis Lavoie
2021-08-23reverseproxy: Remove redundant flushing (#4299)Francis Lavoie
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()`.
2021-08-17logging: Warn for deprecated single_field encoderMatthew Holt
2021-08-12reverseproxy: Incorporate latest proxy changes from stdlib (#4266)Francis Lavoie
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.
2021-07-06reverseproxy: Keep path to unix socket as dial address (#4232)elnoro
2021-06-17caddyhttp: Refactor and export SanitizedPathJoin for use in fastcgi (#4207)Matt Holt
2021-06-16Some misc. cleanupMatthew Holt
The fastcgi changes came from v1 which don't make sense in v2. Fix comment about default value in reverse proxy keep alive.
2021-06-15reverseproxy: Fix overwriting of max_idle_conns_per_host (closes #4201)Matthew Holt
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.
2021-06-04reverseproxy: Always remove hop-by-hop headersMatthew Holt
See golang/go#46313 Based on https://github.com/golang/go/commit/950fa11c4cb01a145bb07eeb167d90a1846061b3
2021-05-12reverseproxy: Set the headers in the replacer before `handle_response` (#4165)Francis Lavoie
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
2021-05-05reverseproxy: Minor logging improvementsMatthew Holt
2021-05-02reverseproxy: Add `handle_response` blocks to `reverse_proxy` (#3710) (#4021)Francis Lavoie
* 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>
2021-04-29reverseproxy: fix hash selection policy (#4137)Simão Gomes Viana
* 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.
2021-04-21reverseproxy: Admin endpoint for reporting upstream statuses (#4125)Francis Lavoie
2021-03-30reverseproxy: Set cookie path to `/` when using cookie lb_policy (#4096)Dimitri Masson
2021-03-29reverseproxy: Implement health_uri, deprecate health_path, supports query ↵Francis Lavoie
(#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)
2021-03-03reverseproxy: Fix upstreams with placeholders with no port (#4046)Francis Lavoie
2021-02-25reverseproxy: Fix round robin data race (#4038)Matthew Holt
2021-02-22reverseproxy: Add duration/latency placeholders (close #4012) (#4013)Matt Holt
* 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
2021-02-09reverseproxy: Response buffering & configurable buffer sizeMatthew Holt
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!
2021-01-05caddyfile: Refactor unmarshaling of module tokensMatthew Holt
Eliminates a fair amount of repeated code
2021-01-04reverseproxy: Caddyfile health check headers, host header support (#3948)yaxin
* 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
2021-01-04caddyfile: Introduce basic linting and fmt check (#3923)Matt Holt
* 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.
2020-12-14reverseproxy: Minor lint fixesMatthew Holt
2020-12-04fastcgi: Set PATH_INFO to file matcher remainder as fallback (#3739)Francis Lavoie
* 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>
2020-11-25reverseproxy: Handle "operation was canceled" errors (#3816)Daniel Santos
* 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>
2020-11-23reverseproxy: Add Caddyfile scheme shorthand for h2c (#3629)Francis Lavoie
* 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>
2020-11-22ci: Use golangci's github action for linting (#3794)Dave Henderson
* 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>
2020-11-20reverseproxy: Logging for streaming and upgrades (#3689)Francis Lavoie
* 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>