From ab885f07b844fd60adb9d49ed7884f3cd2d939a7 Mon Sep 17 00:00:00 2001 From: Matthew Holt Date: Fri, 9 Aug 2019 12:05:47 -0600 Subject: Implement config adapters and beginning of Caddyfile adapter Along with several other changes, such as renaming caddyhttp.ServerRoute to caddyhttp.Route, exporting some types that were not exported before, and tweaking the caddytls TLS values to be more consistent. Notably, we also now disable automatic cert management for names which already have a cert (manually) loaded into the cache. These names no longer need to be specified in the "skip_certificates" field of the automatic HTTPS config, because they will be skipped automatically. --- modules/caddyhttp/vars.go | 71 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 modules/caddyhttp/vars.go (limited to 'modules/caddyhttp/vars.go') diff --git a/modules/caddyhttp/vars.go b/modules/caddyhttp/vars.go new file mode 100644 index 0000000..f74556a --- /dev/null +++ b/modules/caddyhttp/vars.go @@ -0,0 +1,71 @@ +// Copyright 2015 Matthew Holt and The Caddy Authors +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +package caddyhttp + +import ( + "net/http" + + "github.com/caddyserver/caddy/v2" +) + +func init() { + caddy.RegisterModule(caddy.Module{ + Name: "http.handlers.vars", + New: func() interface{} { return new(VarsMiddleware) }, + }) + caddy.RegisterModule(caddy.Module{ + Name: "http.matchers.vars", + New: func() interface{} { return new(VarsMiddleware) }, + }) +} + +// VarsMiddleware is an HTTP middleware which sets variables +// in the context, mainly for use by placeholders. +type VarsMiddleware map[string]string + +func (t VarsMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next Handler) error { + vars := r.Context().Value(VarCtxKey).(map[string]interface{}) + repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer) + for k, v := range t { + keyExpanded := repl.ReplaceAll(k, "") + valExpanded := repl.ReplaceAll(v, "") + vars[keyExpanded] = valExpanded + } + return next.ServeHTTP(w, r) +} + +// VarsMatcher is an HTTP request matcher which can match +// requests based on variables in the context. +type VarsMatcher map[string]string + +// Match matches a request based on variables in the context. +func (m VarsMatcher) Match(r *http.Request) bool { + vars := r.Context().Value(VarCtxKey).(map[string]string) + repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer) + for k, v := range m { + keyExpanded := repl.ReplaceAll(k, "") + valExpanded := repl.ReplaceAll(v, "") + if vars[keyExpanded] != valExpanded { + return false + } + } + return true +} + +// Interface guards +var ( + _ MiddlewareHandler = (*VarsMiddleware)(nil) + _ RequestMatcher = (*VarsMatcher)(nil) +) -- cgit v1.2.3 From c9980fd3671d873a7197a5ac4d6ac9d6b046abb6 Mon Sep 17 00:00:00 2001 From: Matthew Holt Date: Wed, 21 Aug 2019 10:46:35 -0600 Subject: Refactor Caddyfile adapter and module registration 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. --- modules/caddyhttp/vars.go | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) (limited to 'modules/caddyhttp/vars.go') diff --git a/modules/caddyhttp/vars.go b/modules/caddyhttp/vars.go index f74556a..bbd4568 100644 --- a/modules/caddyhttp/vars.go +++ b/modules/caddyhttp/vars.go @@ -21,20 +21,22 @@ import ( ) func init() { - caddy.RegisterModule(caddy.Module{ - Name: "http.handlers.vars", - New: func() interface{} { return new(VarsMiddleware) }, - }) - caddy.RegisterModule(caddy.Module{ - Name: "http.matchers.vars", - New: func() interface{} { return new(VarsMiddleware) }, - }) + caddy.RegisterModule(VarsMiddleware{}) + caddy.RegisterModule(VarsMatcher{}) } // VarsMiddleware is an HTTP middleware which sets variables // in the context, mainly for use by placeholders. type VarsMiddleware map[string]string +// CaddyModule returns the Caddy module information. +func (VarsMiddleware) CaddyModule() caddy.ModuleInfo { + return caddy.ModuleInfo{ + Name: "http.handlers.vars", + New: func() caddy.Module { return new(VarsMiddleware) }, + } +} + func (t VarsMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next Handler) error { vars := r.Context().Value(VarCtxKey).(map[string]interface{}) repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer) @@ -50,6 +52,14 @@ func (t VarsMiddleware) ServeHTTP(w http.ResponseWriter, r *http.Request, next H // requests based on variables in the context. type VarsMatcher map[string]string +// CaddyModule returns the Caddy module information. +func (VarsMatcher) CaddyModule() caddy.ModuleInfo { + return caddy.ModuleInfo{ + Name: "http.matchers.vars", + New: func() caddy.Module { return new(VarsMatcher) }, + } +} + // Match matches a request based on variables in the context. func (m VarsMatcher) Match(r *http.Request) bool { vars := r.Context().Value(VarCtxKey).(map[string]string) -- cgit v1.2.3