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image_webp_policy.go
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/
image_webp_policy.go
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// Copyright 2022 GoEdge CDN goedge.cdn@gmail.com. All rights reserved.
package nodeconfigs
import "github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
func init() {
_ = DefaultWebPImagePolicy.Init()
}
var DefaultWebPImagePolicy = NewWebPImagePolicy()
func NewWebPImagePolicy() *WebPImagePolicy {
return &WebPImagePolicy{
IsOn: true,
RequireCache: true,
MinLength: shared.NewSizeCapacity(0, shared.SizeCapacityUnitKB),
MaxLength: shared.NewSizeCapacity(128, shared.SizeCapacityUnitMB),
}
}
// WebPImagePolicy WebP策略
type WebPImagePolicy struct {
IsOn bool `yaml:"isOn" json:"isOn"` // 是否启用
RequireCache bool `yaml:"requireCache" json:"requireCache"` // 需要在缓存条件下进行
MinLength *shared.SizeCapacity `yaml:"minLength" json:"minLength"` // 最小压缩对象比如4m, 24k
MaxLength *shared.SizeCapacity `yaml:"maxLength" json:"maxLength"` // 最大压缩对象
Quality int `yaml:"quality" json:"quality"` // 生成的图片质量:0-100
minLength int64
maxLength int64
}
func (this *WebPImagePolicy) Init() error {
if this.MinLength != nil {
this.minLength = this.MinLength.Bytes()
}
if this.MaxLength != nil {
this.maxLength = this.MaxLength.Bytes()
}
return nil
}
func (this *WebPImagePolicy) MinLengthBytes() int64 {
return this.minLength
}
func (this *WebPImagePolicy) MaxLengthBytes() int64 {
return this.maxLength
}