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2021-05-05reverseproxy: Minor logging improvementsMatthew Holt
2021-05-04fileserver: Fix `file` matcher with empty `try_files` (#4147)Francis Lavoie
* 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>
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>
2021-05-02caddyhttp: performance improvement in HeaderRE Matcher (#4143)Calvin Xiao
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) ```
2021-04-30fileserver: Share template logic for both `templates` and `file_server ↵Jason Du
browse` (#4093) Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
2021-04-30caddytls: Implement remote IP connection matcher (#4123)Matt Holt
* caddytls: Implement remote IP connection matcher * Implement IP range negation If both Ranges and NotRanges are specified, both must match.
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.
2021-04-29fileserver: Better handling of HTTP status override (#4132)Francis Lavoie
2021-04-21caddytls: Add `load_storage` module (#4055)Francis Lavoie
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?
2021-04-21reverseproxy: Admin endpoint for reporting upstream statuses (#4125)Francis Lavoie
2021-04-19caddyhttp: Implement better logic for inserting the HTTP->HTTPS redirs (#4033)Francis Lavoie
* caddyhttp: Implement better logic for inserting the HTTP->HTTPS redirs * caddyhttp: Add integration test
2021-04-12caddytls: Disable OCSP stapling for manual certs (#4064)Matthew Holt
2021-04-12caddytls: Configurable storage clean intervalMatthew Holt
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
2021-04-08ci: fuzz: add 4 more fuzzing targets (#4105)Mohammed Al Sahaf
2021-04-08fileserver: Add status code override (#4076)Francis Lavoie
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).
2021-04-01Minor tweaksMatthew Holt
2021-03-30reverseproxy: Set cookie path to `/` when using cookie lb_policy (#4096)Dimitri Masson
2021-03-29encode,staticfiles: Content negotiation, precompressed files (#4045)Steffen Brüheim
* 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
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)
2021-03-29go.mod: Migrate to golang.org/x/term (#4073)Simão Gomes Viana
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 './...'
2021-03-29caddyhttp: improve grammar of comment for AllowH2C (#4072)Simão Gomes Viana
2021-03-29headers: Fix Caddyfile parsing for `request_header` with matchers (#4085)Francis Lavoie
2021-03-19fileserver: Add a few more debug lines (#4063)Francis Lavoie
2021-03-19fileserver: Browse listing supports dark mode (#4066)rai
* Add dark color scheme media query * Theme search box, make everything less contrasting * Further contrast tweaks
2021-03-12httpcaddyfile: Add `error` directive for the existing handler (#4034)Francis Lavoie
* httpcaddyfile: Add `error` directive for the existing handler * httpcaddyfile: Move `error` to the end of the order
2021-03-12logging: add replace filter for static value replacement (#4029)Aaron Taylor
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
2021-03-10map: Accept regex substitution in outputs (#3991)Rajat Jain
* 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
2021-03-03reverseproxy: Fix upstreams with placeholders with no port (#4046)Francis Lavoie
2021-03-01rewrite: Implement regex path replacementsMatthew Holt
https://caddy.community/t/collapsing-multiple-forward-slashes-in-path-only/11626
2021-03-01fileserver: Don't replace in request paths (fix #4027)Matthew Holt
2021-02-26caddypki: Add SignWithRoot option for ACME serverMatthew Holt
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.
2021-02-25reverseproxy: Fix round robin data race (#4038)Matthew Holt
2021-02-22caddytls: Remove old asset migration code (close #3894)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
2021-02-16Improve security warningsMatthew Holt
2021-02-11caddyhttp: Support placeholders in header matcher values (close #3916)Matthew Holt
2021-02-10caddytls: Save email with account if not already specifiedMatthew Holt
I'm pretty sure this fixes a bug when the default email is used...
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!
2021-02-02acmeserver: Support custom CAs from CaddyfileMatthew Holt
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.
2021-02-02caddyhttp: Check for invalid subdirectives of static_responseMatthew Holt
Ref: https://caddy.community/t/acme-server-implementation/11256/
2021-02-02httpcaddyfile: Fix default issuers when email providedMatthew Holt
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
2021-01-28caddyhttp: Implement handler abort; new 'abort' directive (close #3871) (#3983)Matt Holt
* 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.
2021-01-27admin: Identity management, remote admin, config loaders (#3994)Matt Holt
This commits dds 3 separate, but very related features: 1. Automated server identity management How do you know you're connecting to the server you think you are? How do you know the server connecting to you is the server instance you think it is? Mutually-authenticated TLS (mTLS) answers both of these questions. Using TLS to authenticate requires a public/private key pair (and the peer must trust the certificate you present to it). Fortunately, Caddy is really good at managing certificates by now. We tap into that power to make it possible for Caddy to obtain and renew its own identity credentials, or in other words, a certificate that can be used for both server verification when clients connect to it, and client verification when it connects to other servers. Its associated private key is essentially its identity, and TLS takes care of possession proofs. This configuration is simply a list of identifiers and an optional list of custom certificate issuers. Identifiers are things like IP addresses or DNS names that can be used to access the Caddy instance. The default issuers are ZeroSSL and Let's Encrypt, but these are public CAs, so they won't issue certs for private identifiers. Caddy will simply manage credentials for these, which other parts of Caddy can use, for example: remote administration or dynamic config loading (described below). 2. Remote administration over secure connection This feature adds generic remote admin functionality that is safe to expose on a public interface. - The "remote" (or "secure") endpoint is optional. It does not affect the standard/local/plaintext endpoint. - It's the same as the [API endpoint on localhost:2019](https://caddyserver.com/docs/api), but over TLS. - TLS cannot be disabled on this endpoint. - TLS mutual auth is required, and cannot be disabled. - The server's certificate _must_ be obtained and renewed via automated means, such as ACME. It cannot be manually loaded. - The TLS server takes care of verifying the client. - The admin handler takes care of application-layer permissions (methods and paths that each client is allowed to use).\ - Sensible defaults are still WIP. - Config fields subject to change/renaming. 3. Dyanmic config loading at startup Since this feature was planned in tandem with remote admin, and depends on its changes, I am combining them into one PR. Dynamic config loading is where you tell Caddy how to load its config, and then it loads and runs that. First, it will load the config you give it (and persist that so it can be optionally resumed later). Then, it will try pulling its _actual_ config using the module you've specified (dynamically loaded configs are _not_ persisted to storage, since resuming them doesn't make sense). This PR comes with a standard config loader module called `caddy.config_loaders.http`. Caddyfile config for all of this can probably be added later. COMMITS: * admin: Secure socket for remote management Functional, but still WIP. Optional secure socket for the admin endpoint is designed for remote management, i.e. to be exposed on a public port. It enforces TLS mutual authentication which cannot be disabled. The default port for this is :2021. The server certificate cannot be specified manually, it MUST be obtained from a certificate issuer (i.e. ACME). More polish and sensible defaults are still in development. Also cleaned up and consolidated the code related to quitting the process. * Happy lint * Implement dynamic config loading; HTTP config loader module This allows Caddy to load a dynamic config when it starts. Dynamically-loaded configs are intentionally not persisted to storage. Includes an implementation of the standard config loader, HTTPLoader. Can be used to download configs over HTTP(S). * Refactor and cleanup; prevent recursive config pulls Identity management is now separated from remote administration. There is no need to enable remote administration if all you want is identity management, but you will need to configure identity management if you want remote administration. * Fix lint warnings * Rename identities->identifiers for consistency
2021-01-19Revert "requestbody: Allow overwriting remote address"Matthew Holt
This reverts commit 0bf2046da7f2f5bf1b7d9fa055ae28de9a06ddaf. No actual use case.
2021-01-16map: Add missing json struct tagMatthew Holt
2021-01-11templates: Add fileExists and httpError template actionsMatthew Holt
The httpError function isn't particularly useful until https://github.com/golang/go/issues/34201 is fixed in the Go standard lib.
2021-01-11requestbody: Allow overwriting remote addressMatthew Holt
An experimental feature, let's see if it's useful.
2021-01-11rewrite: Use RawPath instead of Path (fix #3596) (#3918)go-d
Prevent information loss, i.e. the encoded form that was sent by the client, when using URL strip/replace.
2021-01-07caddytls: Configurable OCSP stapling; global option (closes #3714)Matthew Holt
Allows user to disable OCSP stapling (including support in the Caddyfile via the ocsp_stapling global option) or overriding responder URLs. Useful in environments where responders are not reachable due to firewalls.
2021-01-07logging: Remove logfmt encoder (close #3575)Matthew Holt
Has been deprecated for about 6 months now because it is broken.