Using rewrite is like saying, "I accept this request, but I just need
to act on it as if it came in differently."
Whereas redir implies more of, "I reject this request, send it to me
differently, then I will process it."
Makes sense for it to come before rewrites. This can always be changed
using the 'order' global option if needed.
The fix that was initially put forth in #2971 was good, but only for
up to one layer of nesting. The real problem was that we forgot to
increment nesting when already inside a block if we saw another open
curly brace that opens another block (dispenser.go L157-158).
The new 'handle' directive allows HTTP Caddyfiles to be designed more
like nginx location blocks if the user prefers. Inside a handle block,
directives are still ordered just like they are outside of them, but
handler blocks at a given level of nesting are mutually exclusive.
This work benefitted from some refactoring and cleanup.
This allows individual directives to be ordered relative to others,
where order matters (for example HTTP handlers). Will primarily be
useful when developing new directives, so you don't have to modify the
Caddy source code. Can also be useful if you prefer that redir comes
before rewrite, for example. Note that these are global options. The
route directive can be used to give a specific order to a specific group
of HTTP handler directives.
In the v1 Caddyfile, only the first matching site definition would be
used, so setting these `Terminal: true` ensures that only the first
matching one is used in v2, too.
We also have to sort by key specificity... Caddy 1 had a special data
structure for selecting the most specific site definition, but we don't
have that structure in v2, so we need to sort by length (of host and
path, separately). For blocks where more than one key is present, we
choose the longest host and path (independently, need not be from same
key) by which to sort.
* http: path matcher: exact match by default; substring matches (#2959)
This is a breaking change.
* caddyfile: Change "matcher" directive to "@matcher" syntax (#2959)
* cmd: Assume caddyfile adapter for config files named Caddyfile
* Sub-sort handlers by path matcher length (#2959)
Caddyfile-generated subroutes have handlers, which are sorted first by
directive order (this is unchanged), but within directives we now sort
by specificity of path matcher in descending order (longest path first,
assuming that longest path is most specific).
This only applies if there is only one matcher set, and the path
matcher in that set has only one path in it. Path matchers with two or
more paths are not sorted like this; and routes with more than one
matcher set are not sorted like this either, since specificity is
difficult or impossible to infer correctly.
This is a special case, but definitely a very common one, as a lot of
routing decisions are based on paths.
* caddyfile: New 'route' directive for appearance-order handling (#2959)
* caddyfile: Make rewrite directives mutually exclusive (#2959)
This applies only to rewrites in the top-level subroute created by the
HTTP caddyfile.
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.
This implements HTTP basicauth into Caddy 2. The basic auth module will
not work with passwords that are not securely hashed, so a subcommand
hash-password was added to make it convenient to produce those hashes.
Also included is Caddyfile support.
Closes#2747.
Before this change, only response headers could be manipulated with the
Caddyfile's 'header' directive.
Also handle the request Host header specially, since the Go standard
library treats it separately from the other header fields...
Use piles from which to draw config values.
Module values can return their name, so now we can do two-way mapping
from value to name and name to value; whereas before we could only map
name to value. This was problematic with the Caddyfile adapter since
it receives values and needs to know the name to put in the config.
