diff options
Diffstat (limited to 'modules/caddyhttp/encode/gzip/gzip.go')
| -rw-r--r-- | modules/caddyhttp/encode/gzip/gzip.go | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/modules/caddyhttp/encode/gzip/gzip.go b/modules/caddyhttp/encode/gzip/gzip.go index 0da5fc3..b08385a 100644 --- a/modules/caddyhttp/encode/gzip/gzip.go +++ b/modules/caddyhttp/encode/gzip/gzip.go @@ -3,6 +3,7 @@ package caddygzip import ( "compress/flate" "compress/gzip" // TODO: consider using https://github.com/klauspost/compress/gzip + "fmt" "github.com/caddyserver/caddy2" "github.com/caddyserver/caddy2/modules/caddyhttp/encode" @@ -20,17 +21,37 @@ type Gzip struct { Level int `json:"level,omitempty"` } -// NewEncoder returns a new gzip writer. -func (g Gzip) NewEncoder() encode.Encoder { - if g.Level <= flate.NoCompression { +// Provision provisions g's configuration. +func (g *Gzip) Provision(ctx caddy2.Context) error { + if g.Level == 0 { g.Level = defaultGzipLevel } + return nil +} + +// Validate validates g's configuration. +func (g Gzip) Validate() error { + if g.Level < flate.NoCompression { + return fmt.Errorf("quality too low; must be >= %d", flate.NoCompression) + } if g.Level > flate.BestCompression { - g.Level = flate.BestCompression + return fmt.Errorf("quality too high; must be <= %d", flate.BestCompression) } + return nil +} + +// NewEncoder returns a new gzip writer. +func (g Gzip) NewEncoder() encode.Encoder { writer, _ := gzip.NewWriterLevel(nil, g.Level) return writer } // Informed from http://blog.klauspost.com/gzip-performance-for-go-webservers/ var defaultGzipLevel = 5 + +// Interface guards +var ( + _ encode.Encoding = (*Gzip)(nil) + _ caddy2.Provisioner = (*Gzip)(nil) + _ caddy2.Validator = (*Gzip)(nil) +) |