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28 commits

Author SHA1 Message Date
Matt Holt
9d4ed3a323
caddyhttp: Refactor and export SanitizedPathJoin for use in fastcgi (#4207) 2021-06-17 09:59:08 -06:00
Matthew Holt
238914d70b
Some misc. cleanup
The fastcgi changes came from v1 which don't make sense in v2.

Fix comment about default value in reverse proxy keep alive.
2021-06-16 14:29:42 -06:00
Francis Lavoie
6e9ac248dd
fastcgi: Set PATH_INFO to file matcher remainder as fallback (#3739)
* 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>
2020-12-04 17:12:13 -07:00
Manuel Dalla Lana
2ae8c11927
fastcgi: Add resolve_root_symlink (#3587) 2020-07-20 12:16:13 -06:00
Francis Lavoie
0665a86eb7
fastcgi: Ensure leading slash, omit SERVER_PORT if empty for compliance (#3570)
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
2020-07-17 14:48:50 -06:00
Francis Lavoie
3fdaf50785
fastcgi: Fill REMOTE_USER with http.auth.user.id placeholder (#3577)
Completing a TODO!
2020-07-17 13:33:40 -06:00
Wynn Wolf Arbor
fa4cdde7d8
fastcgi: Make sure splitPos handles empty SplitPath correctly (#3491)
In commit f2ce81c, support for multiple path splitters was added. The
type of SplitPath changed from string to []string, and splitPos was
changed to loop through all values in SplitPath.

Before that commit, if SplitPath was empty, strings.Index returned 0 and
PATH_INFO was set correctly in buildEnv.

Currently, however, splitPos returns -1 for empty values of SplitPath,
behaving as if a split position could not be found at all. PATH_INFO is
then never set in buildEnv and remains empty.

Restore the old behaviour by explicitly checking whether SplitPath is
empty and returning 0 in splitPos.

Closes #3490
2020-06-12 10:07:59 -06:00
Matthew Holt
1e8af27329
fastcgi: Account for lack of split path configuration (fix #3221) 2020-04-03 10:25:25 -06:00
Matthew Holt
ce3ca541d8
caddytls: Update cipher suite names and curve names
Now using IANA-compliant names and Go 1.14's CipherSuites() function so
we don't have to maintain our own mapping of currently-secure cipher
suites.
2020-04-01 14:09:29 -06:00
Matthew Holt
745cb0e9e6
fastcgi: Add debug log (#3178) 2020-03-24 08:34:15 -06:00
Matt Holt
2eede58b3a
fastcgi: Ensure root is always absolute (issue #3178) (#3182) 2020-03-23 21:12:54 -06:00
Matthew Holt
235357abc8
fastcgi: Fix PATH_INFO (issue #3178) 2020-03-23 18:29:16 -06:00
Matthew Holt
f2ce81cc8b fastcgi: Support multiple path splitters (close #1564) 2020-03-22 07:48:34 -06:00
Matt Holt
a5ebec0041
http: Change routes to sequential matcher evaluation (#2967)
Previously, all matchers in a route would be evaluated before any
handlers were executed, and a composite route of the matching routes
would be created. This made rewrites especially tricky, since the only
way to defer later matchers' evaluation was to wrap them in a subroute,
or to invoke a "rehandle" which often caused bugs.

Instead, this new sequential design evaluates each route's matchers then
its handlers in lock-step; matcher-handlers-matcher-handlers...

If the first matching route consists of a rewrite, then the second route
will be evaluated against the rewritten request, rather than the original
one, and so on.

This should do away with any need for rehandling.

I've also taken this opportunity to avoid adding new values to the
request context in the handler chain, as this creates a copy of the
Request struct, which may possibly lead to bugs like it has in the past
(see PR #1542, PR #1481, and maybe issue #2463). We now add all the
expected context values in the top-level handler at the server, then
any new values can be added to the variable table via the VarsCtxKey
context key, or just the GetVar/SetVar functions. In particular, we are
using this facility to convey dial information in the reverse proxy.

Had to be careful in one place as the middleware compilation logic has
changed, and moved a bit. We no longer compile a middleware chain per-
request; instead, we can compile it at provision-time, and defer only the
evaluation of matchers to request-time, which should slightly improve
performance. Doing this, however, we take advantage of multiple function
closures, and we also changed the use of HandlerFunc (function pointer)
to Handler (interface)... this led to a situation where, if we aren't
careful, allows one request routed a certain way to permanently change
the "next" handler for all/most other requests! We avoid this by making
a copy of the interface value (which is a lightweight pointer copy) and
using exclusively that within our wrapped handlers. This way, the
original stack frame is preserved in a "read-only" fashion. The comments
in the code describe this phenomenon.

This may very well be a breaking change for some configurations, however
I do not expect it to impact many people. I will make it clear in the
release notes that this change has occurred.
2020-01-09 10:00:13 -07:00
Matthew Holt
95d944613b
Export Replacer and use concrete type instead of interface
The interface was only making things difficult; a concrete pointer is
probably best.
2019-12-29 13:12:52 -07:00
Matthew Holt
5c8b502964
fastcgi: Set SERVER_SOFTWARE, _NAME, and _PORT properly (fixes #2952) 2019-12-28 16:35:29 -07:00
Matthew Holt
95ed603de7
Improve godocs all around
These will be used in the new automated documentation system
2019-12-23 12:45:35 -07:00
Matt Holt
3c90e370a4
v2: Module documentation; refactor LoadModule(); new caddy struct tags (#2924)
This commit goes a long way toward making automated documentation of
Caddy config and Caddy modules possible. It's a broad, sweeping change,
but mostly internal. It allows us to automatically generate docs for all
Caddy modules (including future third-party ones) and make them viewable
on a web page; it also doubles as godoc comments.

As such, this commit makes significant progress in migrating the docs
from our temporary wiki page toward our new website which is still under
construction.

With this change, all host modules will use ctx.LoadModule() and pass in
both the struct pointer and the field name as a string. This allows the
reflect package to read the struct tag from that field so that it can
get the necessary information like the module namespace and the inline
key.

This has the nice side-effect of unifying the code and documentation. It
also simplifies module loading, and handles several variations on field
types for raw module fields (i.e. variations on json.RawMessage, such as
arrays and maps).

I also renamed ModuleInfo.Name -> ModuleInfo.ID, to make it clear that
the ID is the "full name" which includes both the module namespace and
the name. This clarity is helpful when describing module hierarchy.

As of this change, Caddy modules are no longer an experimental design.
I think the architecture is good enough to go forward.
2019-12-10 13:36:46 -07:00
Matt Holt
b00dfd3965
v2: Logging! (#2831)
* logging: Initial implementation

* logging: More encoder formats, better defaults

* logging: Fix repetition bug with FilterEncoder; add more presets

* logging: DiscardWriter; delete or no-op logs that discard their output

* logging: Add http.handlers.log module; enhance Replacer methods

The Replacer interface has new methods to customize how to handle empty
or unrecognized placeholders. Closes #2815.

* logging: Overhaul HTTP logging, fix bugs, improve filtering, etc.

* logging: General cleanup, begin transitioning to using new loggers

* Fixes after merge conflict
2019-10-28 14:39:37 -06:00
Matthew Holt
9c0bf311f9
Miscellaneous cleanups / comments 2019-10-10 15:38:30 -06:00
Matthew Holt
c32b7e8865
fastcgi: Make EnvVars a map instead of a slice 2019-09-10 14:12:51 -06:00
Matthew Holt
b4f4fcd437
Migrate some selection policy tests over to v2 2019-09-09 21:44:58 -06:00
Matthew Holt
14f9662f9c
Various fixes/tweaks to HTTP placeholder variables and file matching
- Rename http.var.* -> http.vars.* to be more consistent
- Prefixing a path matcher with * now invokes simple suffix matching
- Handlers and matchers that need a root path default to {http.vars.root}
- Clean replacer output on the file matcher's file selection suffix
2019-09-06 12:36:45 -06:00
Matthew Holt
21d7b662e7
fastcgi: Use request context as base, not a new one 2019-09-06 12:02:11 -06:00
Matthew Holt
d2e46c2be0
fastcgi: Set default root path; add interface guards 2019-09-05 13:42:20 -06:00
Matthew Holt
80b54f3b9d
Add original URI to request context; implement into fastcgi env 2019-09-05 13:36:42 -06:00
Matthew Holt
0830fbad03
Reconcile upstream dial addresses and request host/URL information
My goodness that was complicated

Blessed be request.Context

Sort of
2019-09-05 13:14:39 -06:00
Matthew Holt
026df7c5cb
reverse_proxy: WIP refactor and support for FastCGI 2019-09-02 22:01:02 -06:00