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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
2021-01-19caddytest: Update Caddyfile tests for formatting, HTTP-only blocksMatthew Holt
Previous commit improved the Caddyfile adapter so it doesn't unnecessarily add names to "skip" in "auto_https" when the server is already HTTP-only. This commit updates the tests to reflect that change, while also fixing the Caddyfile formatting in many of the tests. We also print the line number of the divergence between input and formatted version in Caddyfile adapt warnings - very useful for finding initial formatting problems.
2021-01-19httpcaddyfile: Skip TLS APs for HTTP-only hosts (fix #3977)Matthew Holt
This is probably an invasive change, but existing tests continue to pass. It seems to make sense this way. There is likely an edge case I haven't considered.
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.
2021-01-07httpcaddyfile: Support repeated use of cert_issuer global optionMatthew Holt
This changes the signature of UnmarshalGlobalFunc but this is probably OK since it's only used by this repo as far as we know. We need this change in order to "remember" the previous value in case a global option appears more than once, which is now a possibility with the cert_issuer option since Caddy now supports multiple issuers in the order defined by the user. Bonus: the issuer subdirective of tls now supports one-liner for "acme" when all you need to set is the directory: issuer acme <dir>
2021-01-06caddytls: add 'key_type' subdirective (#3956)Jordi Masip
* caddytls: add 'key_type' subdirective * Suggested change * *string -> string * test
2021-01-05caddyfile: Refactor unmarshaling of module tokensMatthew Holt
Eliminates a fair amount of repeated code
2021-01-04httpcaddyfile: Adjust iterator when removing AP (fix #3953)Matthew Holt
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.
2020-12-16caddyfile: Fix minor bug in formatterMatthew Holt
2020-12-07httpcaddyfile: Decrement counter when removing conn policy (fix #3906)Matthew Holt
2020-11-24httpcaddyfile: Proper log config with catch-all blocks (fix #3878)Matthew Holt
2020-11-23caddyfile: Add support for env var defaults; add tests (#3682)Francis Lavoie
* caddyfile: Add support for env var defaults, tests * caddyfile: Use ?? instead, fix redundant cast, remove env chaining * caddyfile: Use : instead
2020-11-23httpcaddyfile: Configure servers via global options (#3836)Francis Lavoie
* httpcaddyfile: First pass at implementing server options * httpcaddyfile: Add listener wrapper support * httpcaddyfile: Sort sbaddrs to make adapt output more deterministic * httpcaddyfile: Add server options adapt tests * httpcaddyfile: Windows line endings lol * caddytest: More windows line endings lol (sorry Matt) * Update caddyconfig/httpcaddyfile/serveroptions.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * httpcaddyfile: Reword listener address "matcher" * Apply suggestions from code review Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * httpcaddyfile: Deprecate experimental_http3 option (moved to servers) * httpcaddyfile: Remove validation step, no longer needed 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>
2020-11-20headers: 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>
2020-11-16requestbody: Add Caddyfile support (#3859)Nicola Piccinini
* Add Caddyfile support for request_body: ``` request_body { max_size 10000000 } ``` * Improve Caddyfile parser for request_body module * Remove unnecessary `continue` * Add sample for caddyfile_adapt_test
2020-11-16caddytls: Support multiple issuers (#3862)Matt Holt
* caddytls: Support multiple issuers Defaults are Let's Encrypt and ZeroSSL. There are probably bugs. * Commit updated integration tests, d'oh * Update go.mod
2020-11-04httpcaddyfile: Add certificate_pem placeholder short, add to godoc (#3846)Gaurav Dhameeja
Co-authored-by: Matt Holt <mholt@users.noreply.github.com> Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2020-10-28httpcaddyfile: Revise automation policy generation (#3824)Matt Holt
* httpcaddyfile: Revise automation policy generation This should fix a frustrating edge case where wildcard subjects are used, which potentially get shadowed by more specific versions of themselves; see the new tests for an example. This change is motivated by an actual customer requirement. Although all the tests pass, this logic is incredibly complex and nuanced, and I'm worried it is not correct. But it took me about 4 days to get this far on a solution. I did my best. * Fix typo
2020-10-22httpcaddyfile: Improve AP logic with OnDemandMatthew Holt
We have users that have site blocks like *.*.tld with on-demand TLS enabled. While *.*.tld does not qualify for a publicly-trusted cert due to its wildcards, On-Demand TLS does not actually obtain a cert with those wildcards, since it uses the actual hostname on the handshake. This improves on that logic, but I am still not 100% satisfied with the result since I think we need to also check if another site block is more specific, like foo.example.tld, which might not have on-demand TLS enabled, and make sure an automation policy gets created before the more general policy with on-demand...
2020-10-02map: Reimplement; multiple outputs; optimizeMatthew Holt
2020-09-22httpcaddyfile: Fix panic when parsing route with matchers (#3746)Francis Lavoie
Fixes #3745
2020-09-21httpcaddyfile: Disallow args on route/handle directive family (#3740)Francis Lavoie
2020-09-17metrics: Initial integration of Prometheus metrics (#3709)Dave Henderson
Signed-off-by: Dave Henderson <dhenderson@gmail.com>
2020-09-16httpcaddyfile: Ensure handle_path is sorted equally to handle (#3676)Francis Lavoie
* httpcaddyfile: Ensure handle_path is sorted as equal to handle * httpcaddyfile: Make mutual exclusivity grouping deterministic (I hope) * httpcaddyfile: Add comment linking to the issue being fixed * httpcaddyfile: Typo fix, comment clarity Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Update caddyconfig/httpcaddyfile/httptype.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-09-11httpcaddyfile: Properly record whether we added catch-all conn policyMatthew Holt
We recently introduced `if !cp.SettingsEmpty()` which conditionally adds the connection policy to the list. If the condition evaluates to false, the policy wouldn't actually be added, even if hasCatchAllTLSConnPolicy was set to true on the previous line. Now we set that variable in accordance with whether we actually add the policy. While debugging this I noticed that catch-all policies added early in that loop (i.e. not at the end if we later determine we need one) are not always at the end of the list. They should be, though, since they are selected by which one matches first, and having a catch-all first would nullify any more specific ones later in the list. So I added a sort in consolidateConnPolicies to take care of that. Should fix #3670 and https://caddy.community/t/combining-on-demand-tls-with-custom-ssl-certs-doesnt-seem-to-work-in-2-1-1/9719 but I won't know for sure until somebody verifies it, since at least in the GitHub issue there is not yet enough information (the configs are redacted).
2020-08-17httpcaddyfile: Improve directive sorting logic (#3658)Francis Lavoie
* httpcaddyfile: Flip `root` directive sort order * httpcaddyfile: Sort directives with any matcher before those with none * httpcaddyfile: Generalize reverse sort directives, improve logic * httpcaddyfile: Fix "spelling" issue * httpcaddyfile: Turns out the second change precludes the first httpcaddyfile: Delete test that no longer makes sense * httpcaddyfile: Shorten logic Co-authored-by: Matt Holt <mholt@users.noreply.github.com> Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-08-11Update comment and Caddy 1 EOLMatthew Holt
2020-08-11caddytls: Add support for ZeroSSL; add Caddyfile support for issuers (#3633)Matt Holt
* caddytls: Add support for ZeroSSL; add Caddyfile support for issuers Configuring issuers explicitly in a Caddyfile is not easily compatible with existing ACME-specific parameters such as email or acme_ca which infer the kind of issuer it creates (this is complicated now because the ZeroSSL issuer wraps the ACME issuer)... oh well, we can revisit that later if we need to. New Caddyfile global option: { cert_issuer <name> ... } Or, alternatively, as a tls subdirective: tls { issuer <name> ... } For example, to use ZeroSSL with an API key: { cert_issuser zerossl API_KEY } For now, that still uses ZeroSSL's ACME endpoint; it fetches EAB credentials for you. You can also provide the EAB credentials directly just like any other ACME endpoint: { cert_issuer acme { eab KEY_ID MAC_KEY } } All these examples use the new global option (or tls subdirective). You can still use traditional/existing options with ZeroSSL, since it's just another ACME endpoint: { acme_ca https://acme.zerossl.com/v2/DV90 acme_eab KEY_ID MAC_KEY } That's all there is to it. You just can't mix-and-match acme_* options with cert_issuer, because it becomes confusing/ambiguous/complicated to merge the settings. * Fix broken test This test was asserting buggy behavior, oops - glad this branch both discovers and fixes the bug at the same time! * Fix broken test (post-merge) * Update modules/caddytls/acmeissuer.go Fix godoc comment Co-authored-by: Francis Lavoie <lavofr@gmail.com> * Add support for ZeroSSL's EAB-by-email endpoint Also transform the ACMEIssuer into ZeroSSLIssuer implicitly if set to the ZeroSSL endpoint without EAB (the ZeroSSLIssuer is needed to generate EAB if not already provided); this is now possible with either an API key or an email address. * go.mod: Use latest certmagic, acmez, and x/net * Wrap underlying logic rather than repeating it Oops, duh * Form-encode email info into request body for EAB endpoint Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2020-08-06httpcaddyfile: Avoid repeated subjects in APs (fix #3618)Matthew Holt
When consolidating automation policies, ensure same subject names do not get appended to list.
2020-08-05httpcaddyfile: Allow named matchers in `route` blocks (#3632)Francis Lavoie
2020-08-03httpcaddyfile: Bring `enforce_origin` and `origins` to admin config (#3595)Ye Zhihao
* Bring `ensure_origin` and `origins` to caddyfile admin config * Add unit test for caddyfile admin config update * Add caddyfile adapt test for typical admin setup * httpcaddyfile: Replace admin config error message when there's more arguments than needed Replace d.Err() to d.ArgErr() since the latter provides similarly informative error message Co-authored-by: Matt Holt <mholt@users.noreply.github.com> Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-07-30caddytls: Replace lego with acmez (#3621)Matt Holt
* Replace lego with acmez; upgrade CertMagic * Update integration test
2020-07-20caddyfile: Export Tokenize function for lexing (#3549)Francis Lavoie
2020-07-20push: Implement HTTP/2 server push (#3573)Matt Holt
* push: Implement HTTP/2 server push (close #3551) * push: Abstract header ops by embedding into new struct type This will allow us to add more fields to customize headers in push-specific ways in the future. * push: Ensure Link resources are pushed before response is written * Change header name from X-Caddy-Push to Caddy-Push
2020-07-07httpcaddyfile: Reorder automation policy logic (close #3550)Matthew Holt
2020-06-26caddyhttp: Add 'map' handler (#3199)Mark Sargent
* inital map implementation * resolve the value during middleware execution * use regex instead * pr feedback * renamed mmap to maphandler * refactored GetString implementation * fixed mispelling * additional feedback
2020-06-16httpcaddyfile: Fix ordering of catch-all site blocksMatthew Holt
Catch-alls should always go last. Normally this is the case, but we have a special case for comparing one wildcard-host site block to another non-wildcard host site block; and a catch-all site block is also a non-wildcard host site block, so now we have to special-case the catch-all site block. Sigh. This could be reproduced with a Caddyfile that has two site blocks: ":80" and "*.example.com", in that order.
2020-06-12httpcaddyfile: New `acme_eab` option (#3492)Chris Ortman
* Adds global options for external account bindings * Maybe other people use ctags too? * Use nested block to configure external account * go format files * Restore acme_ca directive in test file * Change Caddyfile config syntax for acme_eab * Update test Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-06-05httpcaddyfile: Add client_auth options to tls directive (#3335)NWHirschfeld
* reading client certificate config from Caddyfile Signed-off-by: NWHirschfeld <Niclas@NWHirschfeld.de> * Update caddyconfig/httpcaddyfile/builtins.go Co-authored-by: Francis Lavoie <lavofr@gmail.com> * added adapt test for parsing client certificate configuration from Caddyfile Signed-off-by: NWHirschfeld <Niclas@NWHirschfeld.de> * read client ca and leaf certificates from file https://github.com/caddyserver/caddy/pull/3335#discussion_r421633844 Signed-off-by: NWHirschfeld <Niclas@NWHirschfeld.de> * Update modules/caddytls/connpolicy.go * Make review adjustments Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-06-03caddypki: Add 'acme_server' Caddyfile directiveMatthew Holt
2020-06-03httpcaddyfile: Sort site blocks with wildcards last (fix #3410)Matthew Holt
2020-06-01caddyfile: Add args on imports (#3423)Francis Lavoie
* caddyfile: Add support for args on imports * caddyfile: Add more import args tests
2020-06-01httpcaddyfile: Let modules add listener wrappers (#3397)Georges Haidar
* httpcaddyfile: allow modules to customize listener wrappers * Update caddyconfig/httpcaddyfile/httptype.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Update caddyconfig/httpcaddyfile/httptype.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Update caddyconfig/httpcaddyfile/httptype.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Update caddyconfig/httpcaddyfile/httptype.go Co-authored-by: Matt Holt <mholt@users.noreply.github.com> Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-05-29caddyconfig: Minor internal and godoc tweaksMatthew Holt
2020-05-27chore: Fix typo in dispenser.go (#3456)Francis Lavoie
2020-05-26httpcaddyfile: New `handle_path` directive (#3281)Francis Lavoie
* caddyconfig: WIP implementation of handle_path * caddyconfig: Complete the implementation - h.NewRoute was key * caddyconfig: Add handle_path integration test * caddyhttp: Use the path matcher as-is, strip the trailing *, update test
2020-05-26caddyfile: Move NewTestDispenser into non-test file (#3439)Francis Lavoie