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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>
2020-11-20reverseproxy: Implement cookie hash selection policy (#3809)Dimitri Masson
* 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>
2020-11-20headers: Support default header values in Caddyfile with '?' (#3807)Gilbert Gilb's
* 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>
2020-11-16reverse_proxy: Fix random_choose selection policy (#3811)Dimitri Masson
2020-11-02fastcgi: Add timeouts support to Caddyfile adapter (#3842)Francis Lavoie
* fastcgi: Add timeouts support to Caddyfile adapter * fastcgi: Use tabs instead of spaces
2020-11-02reverseproxy: Wire up some http transport options in Caddyfile (#3843)Francis Lavoie
2020-10-30reverseproxy: Add max_idle_conns_per_host; fix godocs (#3829)Francis Lavoie
2020-10-29reverseproxy: caddyfile: Don't add port if upstream has placeholder (#3819)Jason McCallister
* check if the host is a placeholder * Update modules/caddyhttp/reverseproxy/caddyfile.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-10-13reverseproxy: Fix dial placeholders, SRV, active health checks (#3780)Matt Holt
* reverseproxy: Fix dial placeholders, SRV, active health checks Supercedes #3776 Partially reverts or updates #3756, #3693, and #3695 * reverseproxy: add integration tests Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
2020-10-01reverseproxy: allow no port for SRV; fix regression in d55d50b (#3756)Mohammed Al Sahaf
* reverseproxy: fix breakage in handling SRV lookup introduced by 3695 * reverseproxy: validate against incompatible config options with lookup_srv * reverseproxy: add integration test cases for validations involving lookup_srv * reverseproxy: clarify the reason for skipping an iteration * grammar.. Oxford comma Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: Francis Lavoie <lavofr@gmail.com> Fixes #3753
2020-10-01reverseproxy: Change 500 error to 502 for lookup_srv config (#3771)Aleksei
Fixes #3763
2020-10-01reverseproxy: default to port 80 for upstreams in Caddyfile (#3772)Mohammed Al Sahaf
* reverseproxy: default to port 80 for port-less upstream dial addresses * reverseproxy: replace integration test with an adapter test Fixes #3761
2020-10-01reverseproxy: Ignore RFC 1521 params in Content-Type header (#3758)Christian Flach
Without this change, a Content-Type header like "text/event-stream;charset=utf-8" would not trigger the immediate flushing. Fixes #3765
2020-09-17reverseproxy: Correct alternate port for active health checks (#3693)Mohammed Al Sahaf
* reverseproxy: construct active health-check transport from scratch (Fixes #3691) * reverseproxy: do upstream health-check on the correct alternative port * reverseproxy: add integration test for health-check on alternative port * reverseproxy: put back the custom transport for health-check http client * reverseproxy: cleanup health-check integration test * reverseproxy: fix health-check of unix socket upstreams * reverseproxy: skip unix socket tests on Windows * tabs > spaces Co-authored-by: Francis Lavoie <lavofr@gmail.com> * make the linter (and @francislavoie) happy Co-authored-by: Francis Lavoie <lavofr@gmail.com> * One more lint fix Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2020-09-16reverseproxy: Enforce port range size of 1 at provision (#3695)Mohammed Al Sahaf
* reverse_proxy: ensure upstream address has port range of only 1 * reverse_proxy: don't log the error if upstream range size is more than 1
2020-09-08reverseproxy: Add `buffer_requests` option to `reverse_proxy` directive (#3710)Francis Lavoie
2020-08-31reverseproxy: Abort active health checks on context cancellationMatthew Holt
2020-08-20ci: Upgrade to Go 1.15 (#3642)Francis Lavoie
* ci: Try Go 1.15 RC1 out of curiosity * Go 1.15 was released; let's try it * Update to latest quic-go * Attempt at fixing broken test Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
2020-08-17reverseproxy: Make default buffer size constMatthew Holt
2020-08-17reverseproxy: Support header selection policy on `Host` field (#3653)Francis Lavoie
2020-08-07reverseproxy: Minor fixes and cleanupMatthew Holt
Now use context cancellation to stop active health checker, which is simpler than and just as effective as using a separate stop channel.
2020-08-03reverse_proxy: fix bidirectional streams with encodings (fix #3606) (#3620)Kevin Lin
* reverse_proxy: fix bi-h2stream breaking gzip encode handle(#3606). * reverse_proxy: check http version of both sides to avoid affecting non-h2 upstream. * Minor cleanup; apply review suggestions Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
2020-07-31admin,templates,core: Minor enhancements and error handling (#3607)Bart
* fix 2 possible bugs * handle unhandled errors
2020-07-31httpcaddyfile: Add `compression` to http transport config (#3624)Ye Zhihao
* httpcaddyfile: Add `compression` to http transport config * Add caddyfile adapt test for typical h2c setup
2020-07-20fastcgi: Add resolve_root_symlink (#3587)Manuel Dalla Lana
2020-07-20reverse_proxy: flush HTTP/2 response when ContentLength is unknown (#3561)Kevin Lin
* reverse proxy: Support more h2 stream scenarios (#3556) * reverse proxy: add integration test for better h2 stream (#3556) * reverse proxy: adjust comments as francislavoie suggests * link to issue #3556 in the comments
2020-07-18reverseproxy: add support for custom DNS resolver (#3479)Mohammed Al Sahaf
* reverse proxy: add support for custom resolver * reverse proxy: don't pollute the global resolver with bootstrap resolver setup * Improve documentation of reverseproxy.UpstreamResolver fields Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * reverse proxy: clarify the name resolution conventions of upstream resolvers and bootstrap resolver * remove support for bootstraper of resolver * godoc and code-style changes Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-07-17reverseproxy: Restore request's original host and header (fix #3509)Matthew Holt
We already restore them within the retry loop, but after successful proxy we didn't reset them, so as handlers bubble back up, they would see the values used for proxying. Thanks to @ziddey for identifying the cause.
2020-07-17fastcgi: Ensure leading slash, omit SERVER_PORT if empty for compliance (#3570)Francis Lavoie
See https://tools.ietf.org/html/rfc3875#section-4.1.13 for SCRIPT_NAME requiring leading slash See https://tools.ietf.org/html/rfc3875#section-4.1.15 for SERVER_PORT requiring omission if empty
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