pkg/common/constant/http.go

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 constant

const (
	HeaderKeyContextType      = "Content-Type"
	HeaderKeyCacheControl     = "Cache-Control"
	HeaderKeyConnection       = "Connection"
	HeaderKeyTransferEncoding = "Transfer-Encoding"
	HeaderKeyContentLength    = "Content-Length"
	HeaderKeyContentEncoding  = "Content-Encoding"
	HeaderKeyUserAgent        = "User-Agent"
	HeaderKeyAccept           = "Accept"

	HeaderKeyAccessControlAllowOrigin      = "Access-Control-Allow-Origin"
	HeaderKeyAccessControlAllowHeaders     = "Access-Control-Allow-Headers"
	HeaderKeyAccessControlExposeHeaders    = "Access-Control-Expose-Headers"
	HeaderKeyAccessControlAllowMethods     = "Access-Control-Allow-Methods"
	HeaderKeyAccessControlMaxAge           = "Access-Control-Max-Age"
	HeaderKeyAccessControlAllowCredentials = "Access-Control-Allow-Credentials"

	HeaderValueJsonUtf8               = "application/json;charset=UTF-8"
	HeaderValueTextPlain              = "text/plain"
	HeaderValueTextEventStream        = "text/event-stream"
	HeaderValueApplicationJson        = "application/json"
	HeaderValueApplicationOctetStream = "application/octet-stream"
	HeaderValueApplicationNDJson      = "application/x-ndjson"
	HeaderValueImageJpeg              = "image/jpeg"
	HeaderValueChunked                = "chunked"
	HeaderValueTextPrefix             = "text/"

	// Media type wildcards for Accept header negotiation
	MediaTypeWildcard        = "*/*"
	MediaTypeApplicationWild = "application/*"
	MediaTypeTextWild        = "text/*"

	HeaderValueGzip    = "gzip"
	HeaderValueDeflate = "deflate"

	HeaderValueKeepAlive = "keep-alive"
	HeaderValueNoCache   = "no-cache"

	HeaderValueAuthorization = "Authorization"

	HeaderValueAll       = "*"
	HeaderValueAllLevels = "**"

	PathSlash           = "/"
	ProtocolSlash       = "://"
	PathParamIdentifier = ":"
)

const (
	Http1HeaderKeyHost = "Host"
	Http2HeaderKeyHost = ":authority"
)

const (
	PprofDefaultAddress = "0.0.0.0"
	PprofDefaultPort    = 7070
)

const (
	Get     = "GET"
	Put     = "PUT"
	Post    = "POST"
	Delete  = "DELETE"
	Options = "OPTIONS"
)

const (
	DubboHttpDubboVersion   = "x-dubbo-http1.1-dubbo-version"
	DubboServiceProtocol    = "x-dubbo-service-protocol"
	DubboServiceVersion     = "x-dubbo-service-version"
	DubboGroup              = "x-dubbo-service-group"
	DubboServiceMethodTypes = "x-dubbo-service-method-overloading"
)

const (
	Host                       = "Host"
	Authorization              = "Authorization"
	WWWAuthenticate            = "WWW-Authenticate"
	XForwardedFor              = "X-Forwarded-For"
	AccessControlRequestMethod = "Access-Control-Request-Method"
	Origin                     = "Origin"
	XForwardedProto            = "X-Forwarded-Proto"
)

// MCP (Model Context Protocol) specific headers
const (
	HeaderKeyMCPProtocolVersion = "Mcp-Protocol-Version"
	HeaderKeyMCPSessionId       = "Mcp-Session-Id"
)

// MCP protocol versions
const (
	MCPProtocolVersion20250618 = "2025-06-18"
	MCPProtocolVersion20250326 = "2025-03-26"
)

// SSE response prefixes
const (
	SSEData  = "data"
	SSEEvent = "event"
	SSEId    = "id"
)