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This is a breaking change primarily in two areas:
- Storage paths for certificates have changed
- Slight changes to JSON config parameters
Huge improvements in this commit, to be detailed more in
the release notes.
The upcoming PKI app will be powered by Smallstep libraries.
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See end of issue #3004. Loading the same certificate file multiple times
with different tags will result in it being de-duplicated in the in-
memory cache, because of course they all have the same bytes. This
meant that any certs of the same filename loaded with different tags
would be overwritten by the next certificate of the same filename, and
any conn policies looking for the tags of the previous ones would never
find them, causing connections to fail.
So, now we remember cert filenames and their tags, instead of loading
them multiple times and overwriting previous ones.
A user crafting their own JSON might make this error too... maybe we
won't see it happen. But if it does, one possibility is, when loading
a duplicate cert, instead of discarding it completely, merge the tag
list into the one that's already stored in the cache, then discard.
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Also only append 1 catch-all TLS connection policy to a server, even if
multiple site blocks contribute to that server.
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Not sure I love the name of the directive; might change it later.
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Forgot to delete this when I moved its test into a different file
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This should greatly reduce memory usage at scale. Part of an overall
effort between Caddy 2 and CertMagic to optimize for large numbers of
names.
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Now multiple instances of the same matcher can be used within a named
matcher without overwriting previous ones.
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Configuration via the Caddyfile requires use of env variables, but
an upstream issue is currently blocking that:
https://github.com/go-acme/lego/issues/1054
Providers will need to be retrofitted upstream in order to support env
var configuration.
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If user provides their own certs or makes any hostname-specific TLS
connection policy, it means that no TLS connection would be served for
any other hostnames, even though you'd expect that TLS is enabled for
them, too. So now we append a catch-all conn policy if none exist, which
allows all ClientHellos to be matched and served.
We also fix the consolidation of automation policies, which previously
gobbled up automation policies without hosts in favor of automation
policies with hosts. Instead of a host-specific policy eating up an
identical catch-all policy, the catch-all policy eats up the identical
host-specific policy, ensuring that the policy is applied to all hosts
which need it.
See also:
https://caddy.community/t/v2-automatic-https-certificate-errors/6847/9?u=matt
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This ensure that if there are multiple certs that match a particular
ServerName or other parameter, then specifically the one the user
provided in the Caddyfile will be used.
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Also sort the list
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See https://caddy.community/t/caddyfile-and-v2/6766/22?u=matt
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Before, listener ports could be wrong because ParseAddress doesn't know
about the user-configured HTTP/HTTPS ports, instead hard-coding port 80
or 443, which could be wrong if the user changed them to something else.
Now we defer port and scheme validation/inference to a later part of
building the output JSON.
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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.
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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.
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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.
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This ensures that only the first matching route is used.
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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.
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I am not sure if the query_string one is necessary or useful yet. We
can always add it later if needed.
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When we append a token to the new dispenser, we need to consume it in the parent, too; otherwise it gets scanned twice, which in this case messed up the nesting count which got decremented once too many times.
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* fix replacing variables on imported files
* refactored replaceEnvVars to ensure it is always called
* Use byte slices for easier use
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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This is because of our sequential handling logic which was recently
merged; if vars is the first handler in the chain, it will be run before
the next route's matchers are executed, so there's no need to nest the
handlers anymore.
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* 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.
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See https://caddy.community/t/caddy-v2-reusable-snippets/6744/11?u=matt
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* transform a caddyfile with environment variables
* support adapt time and runtime variables in the caddyfile
* caddyfile: Pre-process environment variables before parsing
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
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Fixes #2929
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Also some minor cleanup/improvements discovered along the way
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The Caddyfile adapter does not need to be fuzzed, as all it really does
is invoke the Caddyfile parser, which is already fuzzed
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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.
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* fixes query matcher parsing
* return correct argument error when parsing query matcher
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It now will delete the current token even if it is the last one
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* Always cleanup admin endpoint first
* Error out if no config has been set (#2833)
* Ignore explicitly missing admin config (#2833)
* Separate config loading from admin initialization (#2833)
* Add admin option to specify admin listener address (#2833)
* Use zap for reporting admin endpoint status
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* fuzz: add missing fuzzer by fixing .gitignore adding a negation for caddyfile/ directory
* ci: print fuzzing type for debuggability and traceability
* README: update the Fuzzit badge to point to the correct Caddy server Github organization
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Doing so has a tendency to request certificates...
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* fuzz: lay down the foundation for continuous fuzzing
* improve the fuzzers and add some
* fuzz: add Fuzzit badge to README & enable fuzzers submission in CI
* v2-fuzz: do away with the submodule approach for fuzzers
* fuzz: enable fuzzit
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* file_server: Make tests work on Windows
* caddyfile: Fix escaping when character is not escapable
We only escape certain characters depending on inside or outside of
quotes (mainly newlines and quotes). We don't want everyone to have to
escape Windows file paths like C:\\Windows\\... but we can't drop the
\ either if it's just C:\Windows\...
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* v2: split golangci-lint configuration into its own file to allow code editors to take advantage of it
* v2: simplify code
* v2: set the correct lint output formatting
* v2: invert the logic of linter's configuration of output formatting to allow the editor convenience over CI-specific customization. Customize the output format in CI by passing the flag.
* v2: remove irrelevant golangci-lint config
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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.
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