支持对GET/POST之外的请求方法独立缓存

internal/nodes/api_stream.go

@@ -356,6 +356,7 @@ func (this *APIStream) handlePurgeCache(message *pb.NodeStreamMessage) error {
 			for _, encoding := range compressions.AllEncodings() {
 				keys = append(keys, key+compressionCacheSuffix+encoding)
 				keys = append(keys, key+webpCacheSuffix+compressionCacheSuffix+encoding)
+				keys = append(keys, key+cacheMethodSuffix+"HEAD")
 			}
 		}
 		msg.Keys = keys

internal/nodes/http_request_cache.go

@@ -107,12 +107,20 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 
 	// TODO 支持Vary Header
 
+	// 缓存标签
+	var tags = []string{}
+
 	// 检查是否有缓存
-	key := this.Format(this.cacheRef.Key)
+	var key = this.Format(this.cacheRef.Key)
 	if len(key) == 0 {
 		this.cacheRef = nil
 		return
 	}
+	var method = this.Method()
+	if method != http.MethodGet && method != http.MethodPost {
+		key += cacheMethodSuffix + method
+		tags = append(tags, strings.ToLower(method))
+	}
 
 	this.cacheKey = key
 	this.varMapping["cache.key"] = key
@@ -134,6 +142,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 		for _, encoding := range compressions.AllEncodings() {
 			subKeys = append(subKeys, key+compressionCacheSuffix+encoding)
 			subKeys = append(subKeys, key+webpCacheSuffix+compressionCacheSuffix+encoding)
+			subKeys = append(subKeys, key+cacheMethodSuffix+"HEAD")
 		}
 		for _, subKey := range subKeys {
 			err := storage.Delete(subKey)
@@ -173,9 +182,10 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	var err error
 
 	// 检查是否支持WebP
-	var tags = []string{}
 	var webPIsEnabled = false
-	if this.web.WebP != nil &&
+	var isHeadMethod = method == http.MethodHead
+	if !isHeadMethod &&
+		this.web.WebP != nil &&
 		this.web.WebP.IsOn &&
 		this.web.WebP.MatchRequest(filepath.Ext(this.Path()), this.Format) &&
 		this.web.WebP.MatchAccept(this.RawReq.Header.Get("Accept")) {
@@ -183,7 +193,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	}
 
 	// 检查压缩缓存
-	if reader == nil {
+	if !isHeadMethod && reader == nil {
 		if this.web.Compression != nil && this.web.Compression.IsOn {
 			_, encoding, ok := this.web.Compression.MatchAcceptEncoding(this.RawReq.Header.Get("Accept-Encoding"))
 			if ok {
@@ -207,7 +217,7 @@ func (this *HTTPRequest) doCacheRead(useStale bool) (shouldStop bool) {
 	}
 
 	// 检查WebP
-	if reader == nil && webPIsEnabled {
+	if !isHeadMethod && reader == nil && webPIsEnabled {
 		reader, _ = storage.OpenReader(key+webpCacheSuffix, useStale)
 		if reader != nil {
 			this.writer.cacheReaderSuffix = webpCacheSuffix

internal/nodes/http_writer.go

@@ -43,6 +43,9 @@ var webpTotalBufferSize int64 = 0
 // 压缩相关配置
 const compressionCacheSuffix = "@GOEDGE_"
 
+// 缓存相关配置
+const cacheMethodSuffix = "@GOEDGE_"
+
 func init() {
 	var systemMemory = utils.SystemMemoryGB() / 8
 	if systemMemory > 0 {
@@ -154,7 +157,7 @@ func (this *HTTPWriter) PrepareCache(resp *http.Response, size int64) {
 	var addStatusHeader = this.req.web != nil && this.req.web.Cache != nil && this.req.web.Cache.AddStatusHeader
 
 	// 不支持Range
-	if len(this.Header().Get("Content-Range")) > 0 {
+	if this.StatusCode() == http.StatusPartialContent || len(this.Header().Get("Content-Range")) > 0 {
 		this.req.varMapping["cache.status"] = "BYPASS"
 		if addStatusHeader {
 			this.Header().Set("X-Cache", "BYPASS, not supported Content-Range")
@@ -262,6 +265,10 @@ func (this *HTTPWriter) PrepareCache(resp *http.Response, size int64) {
 
 	var expiredAt = utils.UnixTime() + life
 	var cacheKey = this.req.cacheKey
+	var method = this.req.Method()
+	if method != http.MethodGet && method != http.MethodPost {
+		cacheKey += cacheMethodSuffix + this.req.Method()
+	}
 	cacheWriter, err := storage.OpenWriter(cacheKey, expiredAt, this.StatusCode(), size, false)
 	if err != nil {
 		if !caches.CanIgnoreErr(err) {
@@ -348,6 +355,15 @@ func (this *HTTPWriter) PrepareWebP(resp *http.Response, size int64) {
 
 // PrepareCompression 准备压缩
 func (this *HTTPWriter) PrepareCompression(resp *http.Response, size int64) {
+	var method = this.req.Method()
+	if method == http.MethodHead {
+		return
+	}
+
+	if this.StatusCode() == http.StatusNoContent {
+		return
+	}
+
 	var acceptEncodings = this.req.RawReq.Header.Get("Accept-Encoding")
 	var contentEncoding = this.Header().Get("Content-Encoding")
 
@@ -763,7 +779,9 @@ func (this *HTTPWriter) Close() {
 	// 缓存
 	if this.cacheWriter != nil {
 		if this.isOk && this.cacheIsFinished {
-			// 对比Content-Length
+			// 对比缓存前后的Content-Length
+			var method = this.req.Method()
+			if method != http.MethodHead && this.StatusCode() != http.StatusNoContent {
 				var contentLengthString = this.Header().Get("Content-Length")
 				if len(contentLengthString) > 0 {
 					var contentLength = types.Int64(contentLengthString)
@@ -772,6 +790,7 @@ func (this *HTTPWriter) Close() {
 						_ = this.cacheWriter.Discard()
 					}
 				}
+			}
 
 			if this.isOk {
 				err := this.cacheWriter.Close()