支持自动转换图像文件为WebP

pkg/rpc/protos/service_http_web.proto

@@ -22,6 +22,9 @@ service HTTPWebService {
 	// 更改压缩配置
 	rpc updateHTTPWebCompression (UpdateHTTPWebCompressionRequest) returns (RPCSuccess);
 
+	// 更改WebP配置
+	rpc updateHTTPWebWebP (UpdateHTTPWebWebPRequest) returns (RPCSuccess);
+
 	// 更改字符集配置
 	rpc updateHTTPWebCharset (UpdateHTTPWebCharsetRequest) returns (RPCSuccess);
 
@@ -113,6 +116,12 @@ message UpdateHTTPWebCompressionRequest {
 	bytes compressionJSON = 2;
 }
 
+// 更改WebP配置
+message UpdateHTTPWebWebPRequest {
+	int64 webId = 1;
+	bytes webpJSON = 2;
+}
+
 // 更改字符集配置
 message UpdateHTTPWebCharsetRequest {
 	int64 webId = 1;

pkg/serverconfigs/http_web_config.go

@@ -6,13 +6,12 @@ import (
 )
 
 type HTTPWebConfig struct {
-	Id           int64                 `yaml:"id" json:"id"`                     // ID
-	IsOn         bool                  `yaml:"isOn" json:"isOn"`                 // 是否启用
-	Locations    []*HTTPLocationConfig `yaml:"locations" json:"locations"`       // 路径规则 TODO
-	LocationRefs []*HTTPLocationRef    `yaml:"locationRefs" json:"locationRefs"` // 路径规则应用
-	//GzipRef            *HTTPGzipRef                        `yaml:"gzipRef" json:"gzipRef"`                       // Gzip引用
-	//Gzip               *HTTPCompressGzipConfig             `yaml:"gzip" json:"gzip"`                             // Gzip配置
-	Compression        *HTTPCompressionConfig              `yaml:"compression" json:"compression"`               //
+	Id                 int64                               `yaml:"id" json:"id"`                                 // ID
+	IsOn               bool                                `yaml:"isOn" json:"isOn"`                             // 是否启用
+	Locations          []*HTTPLocationConfig               `yaml:"locations" json:"locations"`                   // 路径规则 TODO
+	LocationRefs       []*HTTPLocationRef                  `yaml:"locationRefs" json:"locationRefs"`             // 路径规则应用
+	Compression        *HTTPCompressionConfig              `yaml:"compression" json:"compression"`               // 压缩配置
+	WebP               *WebPImageConfig                    `yaml:"webp" json:"webp"`                             // WebP配置
 	Charset            *HTTPCharsetConfig                  `yaml:"charset" json:"charset"`                       // 字符编码
 	Shutdown           *HTTPShutdownConfig                 `yaml:"shutdown" json:"shutdown"`                     // 临时关闭配置
 	Pages              []*HTTPPageConfig                   `yaml:"pages" json:"pages"`                           // 特殊页面配置
@@ -234,6 +233,14 @@ func (this *HTTPWebConfig) Init() error {
 		}
 	}
 
+	// webp
+	if this.WebP != nil {
+		err := this.WebP.Init()
+		if err != nil {
+			return err
+		}
+	}
+
 	return nil
 }
 

pkg/serverconfigs/image_webp_config.go

@@ -0,0 +1,140 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package serverconfigs
+
+import (
+	"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+	"strings"
+)
+
+// WebPImageConfig WebP配置
+type WebPImageConfig struct {
+	IsPrior bool `yaml:"isPrior" json:"isPrior"`
+	IsOn    bool `yaml:"isOn" json:"isOn"`
+
+	Quality int `yaml:"quality" json:"quality"` // 0-100
+
+	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
+	MimeTypes  []string                       `yaml:"mimeTypes" json:"mimeTypes"`   // 支持的MimeType，支持image/*这样的通配符使用
+	Extensions []string                       `yaml:"extensions" json:"extensions"` // 文件扩展名，包含点符号，不区分大小写
+	Conds      *shared.HTTPRequestCondsConfig `yaml:"conds" json:"conds"`           // 匹配条件
+
+	minLength     int64
+	maxLength     int64
+	mimeTypeRules []*shared.MimeTypeRule
+	extensions    []string
+}
+
+func (this *WebPImageConfig) Init() error {
+	if this.MinLength != nil {
+		this.minLength = this.MinLength.Bytes()
+	}
+	if this.MaxLength != nil {
+		this.maxLength = this.MaxLength.Bytes()
+	}
+
+	if this.Conds != nil {
+		err := this.Conds.Init()
+		if err != nil {
+			return err
+		}
+	}
+
+	// mime types
+	this.mimeTypeRules = []*shared.MimeTypeRule{}
+	for _, mimeType := range this.MimeTypes {
+		rule, err := shared.NewMimeTypeRule(mimeType)
+		if err != nil {
+			return err
+		}
+		this.mimeTypeRules = append(this.mimeTypeRules, rule)
+	}
+
+	// extensions
+	this.extensions = []string{}
+	for _, ext := range this.Extensions {
+		ext = strings.ToLower(ext)
+		if len(ext) > 0 && ext[0] != '.' {
+			ext = "." + ext
+		}
+		this.extensions = append(this.extensions, ext)
+	}
+
+	return nil
+}
+
+// MatchResponse 是否匹配响应
+func (this *WebPImageConfig) MatchResponse(mimeType string, contentLength int64, requestExt string, formatter shared.Formatter) bool {
+	if this.Conds != nil && formatter != nil {
+		if !this.Conds.MatchRequest(formatter) {
+			return false
+		}
+		if !this.Conds.MatchResponse(formatter) {
+			return false
+		}
+	}
+
+	// min length
+	if this.minLength > 0 && contentLength < this.minLength {
+		return false
+	}
+
+	// max length
+	if this.maxLength > 0 && contentLength > this.maxLength {
+		return false
+	}
+
+	// extensions
+	if len(this.extensions) > 0 {
+		if len(requestExt) > 0 {
+			for _, ext := range this.extensions {
+				if ext == requestExt {
+					if strings.Contains(mimeType, "image/") {
+						return true
+					}
+				}
+			}
+		}
+	}
+
+	// mime types
+	if len(this.mimeTypeRules) > 0 {
+		if len(mimeType) > 0 {
+			var index = strings.Index(mimeType, ";")
+			if index >= 0 {
+				mimeType = mimeType[:index]
+			}
+			for _, rule := range this.mimeTypeRules {
+				if rule.Match(mimeType) {
+					return true
+				}
+			}
+		}
+	}
+
+	// 如果没有指定条件，则所有的都能压缩
+	if len(this.extensions) == 0 && len(this.mimeTypeRules) == 0 {
+		return true
+	}
+
+	return false
+}
+
+// MatchAccept 检查客户端是否能接受WebP
+func (this *WebPImageConfig) MatchAccept(acceptContentTypes string) bool {
+	var t = "image/webp"
+	var index = strings.Index(acceptContentTypes, t)
+	if index < 0 {
+		return false
+	}
+	var l = len(acceptContentTypes)
+	if index > 0 && acceptContentTypes[index-1] != ',' {
+		return false
+	}
+
+	if index+len(t) < l && acceptContentTypes[index+len(t)] != ',' {
+		return false
+	}
+	return true
+}

pkg/serverconfigs/image_webp_config_test.go

@@ -0,0 +1,21 @@
+// Copyright 2021 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
+
+package serverconfigs
+
+import (
+	"github.com/iwind/TeaGo/assert"
+	"testing"
+)
+
+func TestWebPImageConfig_MatchAccept(t *testing.T) {
+	var a = assert.NewAssertion(t)
+	{
+		var c = &WebPImageConfig{}
+		a.IsFalse(c.MatchAccept(""))
+		a.IsTrue(c.MatchAccept("image/webp"))
+		a.IsTrue(c.MatchAccept("image/webp,image/png"))
+		a.IsTrue(c.MatchAccept("image/jpeg,image/webp,image/png"))
+		a.IsFalse(c.MatchAccept("mimage/webp"))
+		a.IsFalse(c.MatchAccept("image/webpm"))
+	}
+}