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/encode/brotli/brotli.go | 23 ++++++++- modules/caddyhttp/encode/caddyfile.go | 85 +++++++++++++++++++++++++++++++ modules/caddyhttp/encode/encode.go | 32 ++++++++---- modules/caddyhttp/encode/gzip/gzip.go | 25 +++++++-- modules/caddyhttp/encode/zstd/zstd.go | 13 ++++- 5 files changed, 162 insertions(+), 16 deletions(-) create mode 100644 modules/caddyhttp/encode/caddyfile.go (limited to 'modules/caddyhttp/encode') diff --git a/modules/caddyhttp/encode/brotli/brotli.go b/modules/caddyhttp/encode/brotli/brotli.go index 0890d43..e30d7bc 100644 --- a/modules/caddyhttp/encode/brotli/brotli.go +++ b/modules/caddyhttp/encode/brotli/brotli.go @@ -16,8 +16,10 @@ package caddybrotli import ( "fmt" + "strconv" "github.com/andybalholm/brotli" + "github.com/caddyserver/caddy/caddyconfig/caddyfile" "github.com/caddyserver/caddy/v2" "github.com/caddyserver/caddy/v2/modules/caddyhttp/encode" ) @@ -35,6 +37,22 @@ type Brotli struct { Quality *int `json:"quality,omitempty"` } +// UnmarshalCaddyfile sets up the handler from Caddyfile tokens. +func (b *Brotli) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { + for d.Next() { + if !d.NextArg() { + continue + } + qualityStr := d.Val() + quality, err := strconv.Atoi(qualityStr) + if err != nil { + return err + } + b.Quality = &quality + } + return nil +} + // Validate validates b's configuration. func (b Brotli) Validate() error { if b.Quality != nil { @@ -64,6 +82,7 @@ func (b Brotli) NewEncoder() encode.Encoder { // Interface guards var ( - _ encode.Encoding = (*Brotli)(nil) - _ caddy.Validator = (*Brotli)(nil) + _ encode.Encoding = (*Brotli)(nil) + _ caddy.Validator = (*Brotli)(nil) + _ caddyfile.Unmarshaler = (*Brotli)(nil) ) diff --git a/modules/caddyhttp/encode/caddyfile.go b/modules/caddyhttp/encode/caddyfile.go new file mode 100644 index 0000000..846ec03 --- /dev/null +++ b/modules/caddyhttp/encode/caddyfile.go @@ -0,0 +1,85 @@ +// 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 encode + +import ( + "encoding/json" + "fmt" + + "github.com/caddyserver/caddy" + "github.com/caddyserver/caddy/caddyconfig" + "github.com/caddyserver/caddy/caddyconfig/caddyfile" + "github.com/caddyserver/caddy/caddyconfig/httpcaddyfile" +) + +// UnmarshalCaddyfile sets up the handler from Caddyfile tokens. Syntax: +// +// encode [] { +// gzip [] +// zstd +// brotli [] +// } +// +// Specifying the formats on the first line will use those formats' defaults. +func (enc *Encode) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { + for d.Next() { + for _, arg := range d.RemainingArgs() { + mod, err := caddy.GetModule("http.encoders." + arg) + if err != nil { + return fmt.Errorf("finding encoder module '%s': %v", mod.Name, err) + } + encoding, ok := mod.New().(Encoding) + if !ok { + return fmt.Errorf("module %s is not an HTTP encoding", mod.Name) + } + if enc.EncodingsRaw == nil { + enc.EncodingsRaw = make(map[string]json.RawMessage) + } + enc.EncodingsRaw[arg] = caddyconfig.JSON(encoding, nil) + } + + for d.NextBlock() { + name := d.Val() + mod, err := caddy.GetModule("http.encoders." + name) + if err != nil { + return fmt.Errorf("getting encoder module '%s': %v", mod.Name, err) + } + unm, ok := mod.New().(caddyfile.Unmarshaler) + if !ok { + return fmt.Errorf("encoder module '%s' is not a Caddyfile unmarshaler", mod.Name) + } + err = unm.UnmarshalCaddyfile(d.NewFromNextTokens()) + if err != nil { + return err + } + encoding, ok := unm.(Encoding) + if !ok { + return fmt.Errorf("module %s is not an HTTP encoding", mod.Name) + } + if enc.EncodingsRaw == nil { + enc.EncodingsRaw = make(map[string]json.RawMessage) + } + enc.EncodingsRaw[name] = caddyconfig.JSON(encoding, nil) + } + } + + return nil +} + +// Bucket returns the HTTP Caddyfile handler bucket number. +func (enc Encode) Bucket() int { return 3 } + +// Interface guard +var _ httpcaddyfile.HandlerDirective = (*Encode)(nil) diff --git a/modules/caddyhttp/encode/encode.go b/modules/caddyhttp/encode/encode.go index b2c1327..4e5f743 100644 --- a/modules/caddyhttp/encode/encode.go +++ b/modules/caddyhttp/encode/encode.go @@ -52,19 +52,15 @@ type Encode struct { // Provision provisions enc. func (enc *Encode) Provision(ctx caddy.Context) error { - enc.writerPools = make(map[string]*sync.Pool) - for modName, rawMsg := range enc.EncodingsRaw { val, err := ctx.LoadModule("http.encoders."+modName, rawMsg) if err != nil { return fmt.Errorf("loading encoder module '%s': %v", modName, err) } - encoder := val.(Encoding) - - enc.writerPools[encoder.AcceptEncoding()] = &sync.Pool{ - New: func() interface{} { - return encoder.NewEncoder() - }, + encoding := val.(Encoding) + err = enc.addEncoding(encoding) + if err != nil { + return err } } enc.EncodingsRaw = nil // allow GC to deallocate - TODO: Does this help? @@ -85,10 +81,28 @@ func (enc *Encode) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyh defer w.(*responseWriter).Close() break } - return next.ServeHTTP(w, r) } +func (enc *Encode) addEncoding(e Encoding) error { + ae := e.AcceptEncoding() + if ae == "" { + return fmt.Errorf("encoder does not specify an Accept-Encoding value") + } + if _, ok := enc.writerPools[ae]; ok { + return fmt.Errorf("encoder already added: %s", ae) + } + if enc.writerPools == nil { + enc.writerPools = make(map[string]*sync.Pool) + } + enc.writerPools[ae] = &sync.Pool{ + New: func() interface{} { + return e.NewEncoder() + }, + } + return nil +} + // openResponseWriter creates a new response writer that may (or may not) // encode the response with encodingName. The returned response writer MUST // be closed after the handler completes. diff --git a/modules/caddyhttp/encode/gzip/gzip.go b/modules/caddyhttp/encode/gzip/gzip.go index 45c5f54..28b08c2 100644 --- a/modules/caddyhttp/encode/gzip/gzip.go +++ b/modules/caddyhttp/encode/gzip/gzip.go @@ -18,7 +18,9 @@ import ( "compress/flate" "compress/gzip" // TODO: consider using https://github.com/klauspost/compress/gzip "fmt" + "strconv" + "github.com/caddyserver/caddy/caddyconfig/caddyfile" "github.com/caddyserver/caddy/v2" "github.com/caddyserver/caddy/v2/modules/caddyhttp/encode" ) @@ -35,6 +37,22 @@ type Gzip struct { Level int `json:"level,omitempty"` } +// UnmarshalCaddyfile sets up the handler from Caddyfile tokens. +func (g *Gzip) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { + for d.Next() { + if !d.NextArg() { + continue + } + levelStr := d.Val() + level, err := strconv.Atoi(levelStr) + if err != nil { + return err + } + g.Level = level + } + return nil +} + // Provision provisions g's configuration. func (g *Gzip) Provision(ctx caddy.Context) error { if g.Level == 0 { @@ -69,7 +87,8 @@ var defaultGzipLevel = 5 // Interface guards var ( - _ encode.Encoding = (*Gzip)(nil) - _ caddy.Provisioner = (*Gzip)(nil) - _ caddy.Validator = (*Gzip)(nil) + _ encode.Encoding = (*Gzip)(nil) + _ caddy.Provisioner = (*Gzip)(nil) + _ caddy.Validator = (*Gzip)(nil) + _ caddyfile.Unmarshaler = (*Gzip)(nil) ) diff --git a/modules/caddyhttp/encode/zstd/zstd.go b/modules/caddyhttp/encode/zstd/zstd.go index acebff5..1ec2337 100644 --- a/modules/caddyhttp/encode/zstd/zstd.go +++ b/modules/caddyhttp/encode/zstd/zstd.go @@ -15,6 +15,7 @@ package caddyzstd import ( + "github.com/caddyserver/caddy/caddyconfig/caddyfile" "github.com/caddyserver/caddy/v2" "github.com/caddyserver/caddy/v2/modules/caddyhttp/encode" "github.com/klauspost/compress/zstd" @@ -30,6 +31,11 @@ func init() { // Zstd can create Zstandard encoders. type Zstd struct{} +// UnmarshalCaddyfile sets up the handler from Caddyfile tokens. +func (z *Zstd) UnmarshalCaddyfile(d *caddyfile.Dispenser) error { + return nil +} + // AcceptEncoding returns the name of the encoding as // used in the Accept-Encoding request headers. func (Zstd) AcceptEncoding() string { return "zstd" } @@ -40,5 +46,8 @@ func (z Zstd) NewEncoder() encode.Encoder { return writer } -// Interface guard -var _ encode.Encoding = (*Zstd)(nil) +// Interface guards +var ( + _ encode.Encoding = (*Zstd)(nil) + _ caddyfile.Unmarshaler = (*Zstd)(nil) +) -- cgit v1.2.3