+++ /dev/null
-= vendor/github.com/gregjones/httpcache licensed under: =
-
-Copyright © 2012 Greg Jones (greg.jones@gmail.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-= vendor/github.com/gregjones/httpcache/LICENSE.txt 3cfef421226b2dacde78a4871380ac24
github.com/google/btree v1.1.3 // indirect
github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
- github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 // indirect
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 // indirect
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 // indirect
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware v1.3.0/go.mod h1:z0ButlSOZa5vEBq9m2m2hlwIgKw+rp3sdCBRoJY+30Y=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
"github.com/google/gofuzz": [
"github.com/json-iterator/go"
],
- "github.com/gregjones/httpcache": [
- "k8s.io/client-go"
- ],
"github.com/json-iterator/go": [
"github.com/prometheus/client_golang",
"go.opentelemetry.io/contrib/instrumentation/github.com/emicklei/go-restful/otelrestful",
"github.com/davecgh/go-spew",
"github.com/gogo/protobuf",
"github.com/golang/protobuf",
- "github.com/gregjones/httpcache",
"github.com/json-iterator/go",
"github.com/mailru/easyjson",
"github.com/modern-go/concurrent",
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware v1.3.0/go.mod h1:z0ButlSOZa5vEBq9m2m2hlwIgKw+rp3sdCBRoJY+30Y=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware v1.3.0/go.mod h1:z0ButlSOZa5vEBq9m2m2hlwIgKw+rp3sdCBRoJY+30Y=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/go-openapi/jsonreference v0.20.2 // indirect
github.com/go-openapi/swag v0.23.0 // indirect
github.com/google/btree v1.1.3 // indirect
- github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/josharian/intern v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
"os"
"path/filepath"
- "github.com/gregjones/httpcache"
"github.com/peterbourgon/diskv"
+ "k8s.io/client-go/third_party/forked/httpcache"
"k8s.io/klog/v2"
)
func (rt *cacheRoundTripper) WrappedRoundTripper() http.RoundTripper { return rt.rt.Transport }
-// A sumDiskCache is a cache backend for github.com/gregjones/httpcache. It is
+// A sumDiskCache is a cache backend for httpcache. It is
// similar to httpcache's diskcache package, but uses SHA256 sums to ensure
// cache integrity at read time rather than fsyncing each cache entry to
// increase the likelihood they will be persisted at write time. This avoids
github.com/google/go-cmp v0.7.0
github.com/google/uuid v1.6.0
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674
- github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822
github.com/peterbourgon/diskv v2.0.1+incompatible
github.com/spf13/pflag v1.0.9
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/ianlancetaylor/demangle v0.0.0-20240312041847-bd984b5ce465/go.mod h1:gx7rwoVhcfuVKG5uya9Hs3Sxj7EIvldVofAWIUtGouw=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
--- /dev/null
+Copyright © 2012 Greg Jones (greg.jones@gmail.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
--- /dev/null
+// This package is copied from github.com/gregjones/httpcache
+// with the following changes:
+// - ioutil.NopCloser replaced with io.NopCloser (deprecated)
+// - ioutil.ReadAll replaced with io.ReadAll (deprecated)
+
+// Package httpcache provides a http.RoundTripper implementation that works as a
+// mostly RFC-compliant cache for http responses.
+//
+// It is only suitable for use as a 'private' cache (i.e. for a web-browser or an API-client
+// and not for a shared proxy).
+package httpcache
+
+import (
+ "bufio"
+ "bytes"
+ "errors"
+ "io"
+ "net/http"
+ "net/http/httputil"
+ "strings"
+ "sync"
+ "time"
+)
+
+const (
+ stale = iota
+ fresh
+ transparent
+ // XFromCache is the header added to responses that are returned from the cache
+ XFromCache = "X-From-Cache"
+)
+
+// A Cache interface is used by the Transport to store and retrieve responses.
+type Cache interface {
+ // Get returns the []byte representation of a cached response and a bool
+ // set to true if the value isn't empty
+ Get(key string) (responseBytes []byte, ok bool)
+ // Set stores the []byte representation of a response against a key
+ Set(key string, responseBytes []byte)
+ // Delete removes the value associated with the key
+ Delete(key string)
+}
+
+// cacheKey returns the cache key for req.
+func cacheKey(req *http.Request) string {
+ if req.Method == http.MethodGet {
+ return req.URL.String()
+ } else {
+ return req.Method + " " + req.URL.String()
+ }
+}
+
+// CachedResponse returns the cached http.Response for req if present, and nil
+// otherwise.
+func CachedResponse(c Cache, req *http.Request) (resp *http.Response, err error) {
+ cachedVal, ok := c.Get(cacheKey(req))
+ if !ok {
+ return
+ }
+
+ b := bytes.NewBuffer(cachedVal)
+ return http.ReadResponse(bufio.NewReader(b), req)
+}
+
+// MemoryCache is an implemtation of Cache that stores responses in an in-memory map.
+type MemoryCache struct {
+ mu sync.RWMutex
+ items map[string][]byte
+}
+
+// Get returns the []byte representation of the response and true if present, false if not
+func (c *MemoryCache) Get(key string) (resp []byte, ok bool) {
+ c.mu.RLock()
+ resp, ok = c.items[key]
+ c.mu.RUnlock()
+ return resp, ok
+}
+
+// Set saves response resp to the cache with key
+func (c *MemoryCache) Set(key string, resp []byte) {
+ c.mu.Lock()
+ c.items[key] = resp
+ c.mu.Unlock()
+}
+
+// Delete removes key from the cache
+func (c *MemoryCache) Delete(key string) {
+ c.mu.Lock()
+ delete(c.items, key)
+ c.mu.Unlock()
+}
+
+// NewMemoryCache returns a new Cache that will store items in an in-memory map
+func NewMemoryCache() *MemoryCache {
+ c := &MemoryCache{items: map[string][]byte{}}
+ return c
+}
+
+// Transport is an implementation of http.RoundTripper that will return values from a cache
+// where possible (avoiding a network request) and will additionally add validators (etag/if-modified-since)
+// to repeated requests allowing servers to return 304 / Not Modified
+type Transport struct {
+ // The RoundTripper interface actually used to make requests
+ // If nil, http.DefaultTransport is used
+ Transport http.RoundTripper
+ Cache Cache
+ // If true, responses returned from the cache will be given an extra header, X-From-Cache
+ MarkCachedResponses bool
+}
+
+// NewTransport returns a new Transport with the
+// provided Cache implementation and MarkCachedResponses set to true
+func NewTransport(c Cache) *Transport {
+ return &Transport{Cache: c, MarkCachedResponses: true}
+}
+
+// Client returns an *http.Client that caches responses.
+func (t *Transport) Client() *http.Client {
+ return &http.Client{Transport: t}
+}
+
+// varyMatches will return false unless all of the cached values for the headers listed in Vary
+// match the new request
+func varyMatches(cachedResp *http.Response, req *http.Request) bool {
+ for _, header := range headerAllCommaSepValues(cachedResp.Header, "vary") {
+ header = http.CanonicalHeaderKey(header)
+ if header != "" && req.Header.Get(header) != cachedResp.Header.Get("X-Varied-"+header) {
+ return false
+ }
+ }
+ return true
+}
+
+// RoundTrip takes a Request and returns a Response
+//
+// If there is a fresh Response already in cache, then it will be returned without connecting to
+// the server.
+//
+// If there is a stale Response, then any validators it contains will be set on the new request
+// to give the server a chance to respond with NotModified. If this happens, then the cached Response
+// will be returned.
+func (t *Transport) RoundTrip(req *http.Request) (resp *http.Response, err error) {
+ cacheKey := cacheKey(req)
+ cacheable := (req.Method == "GET" || req.Method == "HEAD") && req.Header.Get("range") == ""
+ var cachedResp *http.Response
+ if cacheable {
+ cachedResp, err = CachedResponse(t.Cache, req)
+ } else {
+ // Need to invalidate an existing value
+ t.Cache.Delete(cacheKey)
+ }
+
+ transport := t.Transport
+ if transport == nil {
+ transport = http.DefaultTransport
+ }
+
+ if cacheable && cachedResp != nil && err == nil {
+ if t.MarkCachedResponses {
+ cachedResp.Header.Set(XFromCache, "1")
+ }
+
+ if varyMatches(cachedResp, req) {
+ // Can only use cached value if the new request doesn't Vary significantly
+ freshness := getFreshness(cachedResp.Header, req.Header)
+ if freshness == fresh {
+ return cachedResp, nil
+ }
+
+ if freshness == stale {
+ var req2 *http.Request
+ // Add validators if caller hasn't already done so
+ etag := cachedResp.Header.Get("etag")
+ if etag != "" && req.Header.Get("etag") == "" {
+ req2 = cloneRequest(req)
+ req2.Header.Set("if-none-match", etag)
+ }
+ lastModified := cachedResp.Header.Get("last-modified")
+ if lastModified != "" && req.Header.Get("last-modified") == "" {
+ if req2 == nil {
+ req2 = cloneRequest(req)
+ }
+ req2.Header.Set("if-modified-since", lastModified)
+ }
+ if req2 != nil {
+ req = req2
+ }
+ }
+ }
+
+ resp, err = transport.RoundTrip(req)
+ if err == nil && req.Method == "GET" && resp.StatusCode == http.StatusNotModified {
+ // Replace the 304 response with the one from cache, but update with some new headers
+ endToEndHeaders := getEndToEndHeaders(resp.Header)
+ for _, header := range endToEndHeaders {
+ cachedResp.Header[header] = resp.Header[header]
+ }
+ resp = cachedResp
+ } else if (err != nil || (cachedResp != nil && resp.StatusCode >= 500)) &&
+ req.Method == "GET" && canStaleOnError(cachedResp.Header, req.Header) {
+ // In case of transport failure and stale-if-error activated, returns cached content
+ // when available
+ return cachedResp, nil
+ } else {
+ if err != nil || resp.StatusCode != http.StatusOK {
+ t.Cache.Delete(cacheKey)
+ }
+ if err != nil {
+ return nil, err
+ }
+ }
+ } else {
+ reqCacheControl := parseCacheControl(req.Header)
+ if _, ok := reqCacheControl["only-if-cached"]; ok {
+ resp = newGatewayTimeoutResponse(req)
+ } else {
+ resp, err = transport.RoundTrip(req)
+ if err != nil {
+ return nil, err
+ }
+ }
+ }
+
+ if cacheable && canStore(parseCacheControl(req.Header), parseCacheControl(resp.Header)) {
+ for _, varyKey := range headerAllCommaSepValues(resp.Header, "vary") {
+ varyKey = http.CanonicalHeaderKey(varyKey)
+ fakeHeader := "X-Varied-" + varyKey
+ reqValue := req.Header.Get(varyKey)
+ if reqValue != "" {
+ resp.Header.Set(fakeHeader, reqValue)
+ }
+ }
+ switch req.Method {
+ case "GET":
+ // Delay caching until EOF is reached.
+ resp.Body = &cachingReadCloser{
+ R: resp.Body,
+ OnEOF: func(r io.Reader) {
+ resp := *resp
+ resp.Body = io.NopCloser(r)
+ respBytes, err := httputil.DumpResponse(&resp, true)
+ if err == nil {
+ t.Cache.Set(cacheKey, respBytes)
+ }
+ },
+ }
+ default:
+ respBytes, err := httputil.DumpResponse(resp, true)
+ if err == nil {
+ t.Cache.Set(cacheKey, respBytes)
+ }
+ }
+ } else {
+ t.Cache.Delete(cacheKey)
+ }
+ return resp, nil
+}
+
+// ErrNoDateHeader indicates that the HTTP headers contained no Date header.
+var ErrNoDateHeader = errors.New("no Date header")
+
+// Date parses and returns the value of the Date header.
+func Date(respHeaders http.Header) (date time.Time, err error) {
+ dateHeader := respHeaders.Get("date")
+ if dateHeader == "" {
+ err = ErrNoDateHeader
+ return
+ }
+
+ return time.Parse(time.RFC1123, dateHeader)
+}
+
+type realClock struct{}
+
+func (c *realClock) since(d time.Time) time.Duration {
+ return time.Since(d)
+}
+
+type timer interface {
+ since(d time.Time) time.Duration
+}
+
+var clock timer = &realClock{}
+
+// getFreshness will return one of fresh/stale/transparent based on the cache-control
+// values of the request and the response
+//
+// fresh indicates the response can be returned
+// stale indicates that the response needs validating before it is returned
+// transparent indicates the response should not be used to fulfil the request
+//
+// Because this is only a private cache, 'public' and 'private' in cache-control aren't
+// signficant. Similarly, smax-age isn't used.
+func getFreshness(respHeaders, reqHeaders http.Header) (freshness int) {
+ respCacheControl := parseCacheControl(respHeaders)
+ reqCacheControl := parseCacheControl(reqHeaders)
+ if _, ok := reqCacheControl["no-cache"]; ok {
+ return transparent
+ }
+ if _, ok := respCacheControl["no-cache"]; ok {
+ return stale
+ }
+ if _, ok := reqCacheControl["only-if-cached"]; ok {
+ return fresh
+ }
+
+ date, err := Date(respHeaders)
+ if err != nil {
+ return stale
+ }
+ currentAge := clock.since(date)
+
+ var lifetime time.Duration
+ var zeroDuration time.Duration
+
+ // If a response includes both an Expires header and a max-age directive,
+ // the max-age directive overrides the Expires header, even if the Expires header is more restrictive.
+ if maxAge, ok := respCacheControl["max-age"]; ok {
+ lifetime, err = time.ParseDuration(maxAge + "s")
+ if err != nil {
+ lifetime = zeroDuration
+ }
+ } else {
+ expiresHeader := respHeaders.Get("Expires")
+ if expiresHeader != "" {
+ expires, err := time.Parse(time.RFC1123, expiresHeader)
+ if err != nil {
+ lifetime = zeroDuration
+ } else {
+ lifetime = expires.Sub(date)
+ }
+ }
+ }
+
+ if maxAge, ok := reqCacheControl["max-age"]; ok {
+ // the client is willing to accept a response whose age is no greater than the specified time in seconds
+ lifetime, err = time.ParseDuration(maxAge + "s")
+ if err != nil {
+ lifetime = zeroDuration
+ }
+ }
+ if minfresh, ok := reqCacheControl["min-fresh"]; ok {
+ // the client wants a response that will still be fresh for at least the specified number of seconds.
+ minfreshDuration, err := time.ParseDuration(minfresh + "s")
+ if err == nil {
+ currentAge = time.Duration(currentAge + minfreshDuration)
+ }
+ }
+
+ if maxstale, ok := reqCacheControl["max-stale"]; ok {
+ // Indicates that the client is willing to accept a response that has exceeded its expiration time.
+ // If max-stale is assigned a value, then the client is willing to accept a response that has exceeded
+ // its expiration time by no more than the specified number of seconds.
+ // If no value is assigned to max-stale, then the client is willing to accept a stale response of any age.
+ //
+ // Responses served only because of a max-stale value are supposed to have a Warning header added to them,
+ // but that seems like a hassle, and is it actually useful? If so, then there needs to be a different
+ // return-value available here.
+ if maxstale == "" {
+ return fresh
+ }
+ maxstaleDuration, err := time.ParseDuration(maxstale + "s")
+ if err == nil {
+ currentAge = time.Duration(currentAge - maxstaleDuration)
+ }
+ }
+
+ if lifetime > currentAge {
+ return fresh
+ }
+
+ return stale
+}
+
+// Returns true if either the request or the response includes the stale-if-error
+// cache control extension: https://tools.ietf.org/html/rfc5861
+func canStaleOnError(respHeaders, reqHeaders http.Header) bool {
+ respCacheControl := parseCacheControl(respHeaders)
+ reqCacheControl := parseCacheControl(reqHeaders)
+
+ var err error
+ lifetime := time.Duration(-1)
+
+ if staleMaxAge, ok := respCacheControl["stale-if-error"]; ok {
+ if staleMaxAge != "" {
+ lifetime, err = time.ParseDuration(staleMaxAge + "s")
+ if err != nil {
+ return false
+ }
+ } else {
+ return true
+ }
+ }
+ if staleMaxAge, ok := reqCacheControl["stale-if-error"]; ok {
+ if staleMaxAge != "" {
+ lifetime, err = time.ParseDuration(staleMaxAge + "s")
+ if err != nil {
+ return false
+ }
+ } else {
+ return true
+ }
+ }
+
+ if lifetime >= 0 {
+ date, err := Date(respHeaders)
+ if err != nil {
+ return false
+ }
+ currentAge := clock.since(date)
+ if lifetime > currentAge {
+ return true
+ }
+ }
+
+ return false
+}
+
+func getEndToEndHeaders(respHeaders http.Header) []string {
+ // These headers are always hop-by-hop
+ hopByHopHeaders := map[string]struct{}{
+ "Connection": {},
+ "Keep-Alive": {},
+ "Proxy-Authenticate": {},
+ "Proxy-Authorization": {},
+ "Te": {},
+ "Trailers": {},
+ "Transfer-Encoding": {},
+ "Upgrade": {},
+ }
+
+ for _, extra := range strings.Split(respHeaders.Get("connection"), ",") {
+ // any header listed in connection, if present, is also considered hop-by-hop
+ if strings.Trim(extra, " ") != "" {
+ hopByHopHeaders[http.CanonicalHeaderKey(extra)] = struct{}{}
+ }
+ }
+ endToEndHeaders := []string{}
+ for respHeader := range respHeaders {
+ if _, ok := hopByHopHeaders[respHeader]; !ok {
+ endToEndHeaders = append(endToEndHeaders, respHeader)
+ }
+ }
+ return endToEndHeaders
+}
+
+func canStore(reqCacheControl, respCacheControl cacheControl) (canStore bool) {
+ if _, ok := respCacheControl["no-store"]; ok {
+ return false
+ }
+ if _, ok := reqCacheControl["no-store"]; ok {
+ return false
+ }
+ return true
+}
+
+func newGatewayTimeoutResponse(req *http.Request) *http.Response {
+ var braw bytes.Buffer
+ braw.WriteString("HTTP/1.1 504 Gateway Timeout\r\n\r\n")
+ resp, err := http.ReadResponse(bufio.NewReader(&braw), req)
+ if err != nil {
+ panic(err)
+ }
+ return resp
+}
+
+// cloneRequest returns a clone of the provided *http.Request.
+// The clone is a shallow copy of the struct and its Header map.
+// (This function copyright goauth2 authors: https://code.google.com/p/goauth2)
+func cloneRequest(r *http.Request) *http.Request {
+ // shallow copy of the struct
+ r2 := new(http.Request)
+ *r2 = *r
+ // deep copy of the Header
+ r2.Header = make(http.Header)
+ for k, s := range r.Header {
+ r2.Header[k] = s
+ }
+ return r2
+}
+
+type cacheControl map[string]string
+
+func parseCacheControl(headers http.Header) cacheControl {
+ cc := cacheControl{}
+ ccHeader := headers.Get("Cache-Control")
+ for _, part := range strings.Split(ccHeader, ",") {
+ part = strings.Trim(part, " ")
+ if part == "" {
+ continue
+ }
+ if strings.ContainsRune(part, '=') {
+ keyval := strings.Split(part, "=")
+ cc[strings.Trim(keyval[0], " ")] = strings.Trim(keyval[1], ",")
+ } else {
+ cc[part] = ""
+ }
+ }
+ return cc
+}
+
+// headerAllCommaSepValues returns all comma-separated values (each
+// with whitespace trimmed) for header name in headers. According to
+// Section 4.2 of the HTTP/1.1 spec
+// (http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2),
+// values from multiple occurrences of a header should be concatenated, if
+// the header's value is a comma-separated list.
+func headerAllCommaSepValues(headers http.Header, name string) []string {
+ var vals []string
+ for _, val := range headers[http.CanonicalHeaderKey(name)] {
+ fields := strings.Split(val, ",")
+ for i, f := range fields {
+ fields[i] = strings.TrimSpace(f)
+ }
+ vals = append(vals, fields...)
+ }
+ return vals
+}
+
+// cachingReadCloser is a wrapper around ReadCloser R that calls OnEOF
+// handler with a full copy of the content read from R when EOF is
+// reached.
+type cachingReadCloser struct {
+ // Underlying ReadCloser.
+ R io.ReadCloser
+ // OnEOF is called with a copy of the content of R when EOF is reached.
+ OnEOF func(io.Reader)
+
+ buf bytes.Buffer // buf stores a copy of the content of R.
+}
+
+// Read reads the next len(p) bytes from R or until R is drained. The
+// return value n is the number of bytes read. If R has no data to
+// return, err is io.EOF and OnEOF is called with a full copy of what
+// has been read so far.
+func (r *cachingReadCloser) Read(p []byte) (n int, err error) {
+ n, err = r.R.Read(p)
+ r.buf.Write(p[:n])
+ if err == io.EOF {
+ r.OnEOF(bytes.NewReader(r.buf.Bytes()))
+ }
+ return n, err
+}
+
+func (r *cachingReadCloser) Close() error {
+ return r.R.Close()
+}
+
+// NewMemoryCacheTransport returns a new Transport using the in-memory cache implementation
+func NewMemoryCacheTransport() *Transport {
+ c := NewMemoryCache()
+ t := NewTransport(c)
+ return t
+}
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3 h1:5ZPtiqj0JL5oKWmcsq4VMaAW5ukBEgSGXEN89zeH1Jo=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0/go.mod h1:qOchhhIlmRcqk/O9uCo/puJlyo07YINaIqdZfZG3Jkc=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0/go.mod h1:qOchhhIlmRcqk/O9uCo/puJlyo07YINaIqdZfZG3Jkc=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
- github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/josharian/intern v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/ianlancetaylor/demangle v0.0.0-20240312041847-bd984b5ce465/go.mod h1:gx7rwoVhcfuVKG5uya9Hs3Sxj7EIvldVofAWIUtGouw=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0/go.mod h1:qOchhhIlmRcqk/O9uCo/puJlyo07YINaIqdZfZG3Jkc=
github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.3/go.mod h1:ndYquD05frm2vACXE1nsccT4oJzjhw2arTS2cpUD1PI=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 h1:JeSE6pjso5THxAzdVpqr6/geYxZytqFMBCOtn/ujyeo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1 h1:qnpSQwGEnkcRpTqNOIR6bJbR0gAorgP9CSALpRcKoAA=
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1/go.mod h1:lXGCsh6c22WGtjr+qGHj1otzZpV/1kwTMAqkwZsnWRU=
github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.0 h1:FbSCl+KggFl+Ocym490i/EyXF4lPgLoUtcSWquBM0Rs=
github.com/google/btree v1.1.3 // indirect
github.com/google/gnostic-models v0.7.0 // indirect
github.com/google/uuid v1.6.0 // indirect
- github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/josharian/intern v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674/go.mod h1:r4w70xmWCQKmi1ONH4KIaBptdivuRPyosB9RmPlGEwA=
-github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
+++ /dev/null
-sudo: false
-language: go
-matrix:
- allow_failures:
- - go: master
- fast_finish: true
- include:
- - go: 1.10.x
- - go: 1.11.x
- env: GOFMT=1
- - go: master
-install:
- - # Do nothing. This is needed to prevent default install action "go get -t -v ./..." from happening here (we want it to happen inside script step).
-script:
- - go get -t -v ./...
- - if test -n "${GOFMT}"; then gofmt -w -s . && git diff --exit-code; fi
- - go tool vet .
- - go test -v -race ./...
+++ /dev/null
-Copyright © 2012 Greg Jones (greg.jones@gmail.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
+++ /dev/null
-httpcache
-=========
-
-[](https://travis-ci.org/gregjones/httpcache) [](https://godoc.org/github.com/gregjones/httpcache)
-
-Package httpcache provides a http.RoundTripper implementation that works as a mostly [RFC 7234](https://tools.ietf.org/html/rfc7234) compliant cache for http responses.
-
-It is only suitable for use as a 'private' cache (i.e. for a web-browser or an API-client and not for a shared proxy).
-
-This project isn't actively maintained; it works for what I, and seemingly others, want to do with it, and I consider it "done". That said, if you find any issues, please open a Pull Request and I will try to review it. Any changes now that change the public API won't be considered.
-
-Cache Backends
---------------
-
-- The built-in 'memory' cache stores responses in an in-memory map.
-- [`github.com/gregjones/httpcache/diskcache`](https://github.com/gregjones/httpcache/tree/master/diskcache) provides a filesystem-backed cache using the [diskv](https://github.com/peterbourgon/diskv) library.
-- [`github.com/gregjones/httpcache/memcache`](https://github.com/gregjones/httpcache/tree/master/memcache) provides memcache implementations, for both App Engine and 'normal' memcache servers.
-- [`sourcegraph.com/sourcegraph/s3cache`](https://sourcegraph.com/github.com/sourcegraph/s3cache) uses Amazon S3 for storage.
-- [`github.com/gregjones/httpcache/leveldbcache`](https://github.com/gregjones/httpcache/tree/master/leveldbcache) provides a filesystem-backed cache using [leveldb](https://github.com/syndtr/goleveldb/leveldb).
-- [`github.com/die-net/lrucache`](https://github.com/die-net/lrucache) provides an in-memory cache that will evict least-recently used entries.
-- [`github.com/die-net/lrucache/twotier`](https://github.com/die-net/lrucache/tree/master/twotier) allows caches to be combined, for example to use lrucache above with a persistent disk-cache.
-- [`github.com/birkelund/boltdbcache`](https://github.com/birkelund/boltdbcache) provides a BoltDB implementation (based on the [bbolt](https://github.com/coreos/bbolt) fork).
-
-If you implement any other backend and wish it to be linked here, please send a PR editing this file.
-
-License
--------
-
-- [MIT License](LICENSE.txt)
+++ /dev/null
-// Package httpcache provides a http.RoundTripper implementation that works as a
-// mostly RFC-compliant cache for http responses.
-//
-// It is only suitable for use as a 'private' cache (i.e. for a web-browser or an API-client
-// and not for a shared proxy).
-//
-package httpcache
-
-import (
- "bufio"
- "bytes"
- "errors"
- "io"
- "io/ioutil"
- "net/http"
- "net/http/httputil"
- "strings"
- "sync"
- "time"
-)
-
-const (
- stale = iota
- fresh
- transparent
- // XFromCache is the header added to responses that are returned from the cache
- XFromCache = "X-From-Cache"
-)
-
-// A Cache interface is used by the Transport to store and retrieve responses.
-type Cache interface {
- // Get returns the []byte representation of a cached response and a bool
- // set to true if the value isn't empty
- Get(key string) (responseBytes []byte, ok bool)
- // Set stores the []byte representation of a response against a key
- Set(key string, responseBytes []byte)
- // Delete removes the value associated with the key
- Delete(key string)
-}
-
-// cacheKey returns the cache key for req.
-func cacheKey(req *http.Request) string {
- if req.Method == http.MethodGet {
- return req.URL.String()
- } else {
- return req.Method + " " + req.URL.String()
- }
-}
-
-// CachedResponse returns the cached http.Response for req if present, and nil
-// otherwise.
-func CachedResponse(c Cache, req *http.Request) (resp *http.Response, err error) {
- cachedVal, ok := c.Get(cacheKey(req))
- if !ok {
- return
- }
-
- b := bytes.NewBuffer(cachedVal)
- return http.ReadResponse(bufio.NewReader(b), req)
-}
-
-// MemoryCache is an implemtation of Cache that stores responses in an in-memory map.
-type MemoryCache struct {
- mu sync.RWMutex
- items map[string][]byte
-}
-
-// Get returns the []byte representation of the response and true if present, false if not
-func (c *MemoryCache) Get(key string) (resp []byte, ok bool) {
- c.mu.RLock()
- resp, ok = c.items[key]
- c.mu.RUnlock()
- return resp, ok
-}
-
-// Set saves response resp to the cache with key
-func (c *MemoryCache) Set(key string, resp []byte) {
- c.mu.Lock()
- c.items[key] = resp
- c.mu.Unlock()
-}
-
-// Delete removes key from the cache
-func (c *MemoryCache) Delete(key string) {
- c.mu.Lock()
- delete(c.items, key)
- c.mu.Unlock()
-}
-
-// NewMemoryCache returns a new Cache that will store items in an in-memory map
-func NewMemoryCache() *MemoryCache {
- c := &MemoryCache{items: map[string][]byte{}}
- return c
-}
-
-// Transport is an implementation of http.RoundTripper that will return values from a cache
-// where possible (avoiding a network request) and will additionally add validators (etag/if-modified-since)
-// to repeated requests allowing servers to return 304 / Not Modified
-type Transport struct {
- // The RoundTripper interface actually used to make requests
- // If nil, http.DefaultTransport is used
- Transport http.RoundTripper
- Cache Cache
- // If true, responses returned from the cache will be given an extra header, X-From-Cache
- MarkCachedResponses bool
-}
-
-// NewTransport returns a new Transport with the
-// provided Cache implementation and MarkCachedResponses set to true
-func NewTransport(c Cache) *Transport {
- return &Transport{Cache: c, MarkCachedResponses: true}
-}
-
-// Client returns an *http.Client that caches responses.
-func (t *Transport) Client() *http.Client {
- return &http.Client{Transport: t}
-}
-
-// varyMatches will return false unless all of the cached values for the headers listed in Vary
-// match the new request
-func varyMatches(cachedResp *http.Response, req *http.Request) bool {
- for _, header := range headerAllCommaSepValues(cachedResp.Header, "vary") {
- header = http.CanonicalHeaderKey(header)
- if header != "" && req.Header.Get(header) != cachedResp.Header.Get("X-Varied-"+header) {
- return false
- }
- }
- return true
-}
-
-// RoundTrip takes a Request and returns a Response
-//
-// If there is a fresh Response already in cache, then it will be returned without connecting to
-// the server.
-//
-// If there is a stale Response, then any validators it contains will be set on the new request
-// to give the server a chance to respond with NotModified. If this happens, then the cached Response
-// will be returned.
-func (t *Transport) RoundTrip(req *http.Request) (resp *http.Response, err error) {
- cacheKey := cacheKey(req)
- cacheable := (req.Method == "GET" || req.Method == "HEAD") && req.Header.Get("range") == ""
- var cachedResp *http.Response
- if cacheable {
- cachedResp, err = CachedResponse(t.Cache, req)
- } else {
- // Need to invalidate an existing value
- t.Cache.Delete(cacheKey)
- }
-
- transport := t.Transport
- if transport == nil {
- transport = http.DefaultTransport
- }
-
- if cacheable && cachedResp != nil && err == nil {
- if t.MarkCachedResponses {
- cachedResp.Header.Set(XFromCache, "1")
- }
-
- if varyMatches(cachedResp, req) {
- // Can only use cached value if the new request doesn't Vary significantly
- freshness := getFreshness(cachedResp.Header, req.Header)
- if freshness == fresh {
- return cachedResp, nil
- }
-
- if freshness == stale {
- var req2 *http.Request
- // Add validators if caller hasn't already done so
- etag := cachedResp.Header.Get("etag")
- if etag != "" && req.Header.Get("etag") == "" {
- req2 = cloneRequest(req)
- req2.Header.Set("if-none-match", etag)
- }
- lastModified := cachedResp.Header.Get("last-modified")
- if lastModified != "" && req.Header.Get("last-modified") == "" {
- if req2 == nil {
- req2 = cloneRequest(req)
- }
- req2.Header.Set("if-modified-since", lastModified)
- }
- if req2 != nil {
- req = req2
- }
- }
- }
-
- resp, err = transport.RoundTrip(req)
- if err == nil && req.Method == "GET" && resp.StatusCode == http.StatusNotModified {
- // Replace the 304 response with the one from cache, but update with some new headers
- endToEndHeaders := getEndToEndHeaders(resp.Header)
- for _, header := range endToEndHeaders {
- cachedResp.Header[header] = resp.Header[header]
- }
- resp = cachedResp
- } else if (err != nil || (cachedResp != nil && resp.StatusCode >= 500)) &&
- req.Method == "GET" && canStaleOnError(cachedResp.Header, req.Header) {
- // In case of transport failure and stale-if-error activated, returns cached content
- // when available
- return cachedResp, nil
- } else {
- if err != nil || resp.StatusCode != http.StatusOK {
- t.Cache.Delete(cacheKey)
- }
- if err != nil {
- return nil, err
- }
- }
- } else {
- reqCacheControl := parseCacheControl(req.Header)
- if _, ok := reqCacheControl["only-if-cached"]; ok {
- resp = newGatewayTimeoutResponse(req)
- } else {
- resp, err = transport.RoundTrip(req)
- if err != nil {
- return nil, err
- }
- }
- }
-
- if cacheable && canStore(parseCacheControl(req.Header), parseCacheControl(resp.Header)) {
- for _, varyKey := range headerAllCommaSepValues(resp.Header, "vary") {
- varyKey = http.CanonicalHeaderKey(varyKey)
- fakeHeader := "X-Varied-" + varyKey
- reqValue := req.Header.Get(varyKey)
- if reqValue != "" {
- resp.Header.Set(fakeHeader, reqValue)
- }
- }
- switch req.Method {
- case "GET":
- // Delay caching until EOF is reached.
- resp.Body = &cachingReadCloser{
- R: resp.Body,
- OnEOF: func(r io.Reader) {
- resp := *resp
- resp.Body = ioutil.NopCloser(r)
- respBytes, err := httputil.DumpResponse(&resp, true)
- if err == nil {
- t.Cache.Set(cacheKey, respBytes)
- }
- },
- }
- default:
- respBytes, err := httputil.DumpResponse(resp, true)
- if err == nil {
- t.Cache.Set(cacheKey, respBytes)
- }
- }
- } else {
- t.Cache.Delete(cacheKey)
- }
- return resp, nil
-}
-
-// ErrNoDateHeader indicates that the HTTP headers contained no Date header.
-var ErrNoDateHeader = errors.New("no Date header")
-
-// Date parses and returns the value of the Date header.
-func Date(respHeaders http.Header) (date time.Time, err error) {
- dateHeader := respHeaders.Get("date")
- if dateHeader == "" {
- err = ErrNoDateHeader
- return
- }
-
- return time.Parse(time.RFC1123, dateHeader)
-}
-
-type realClock struct{}
-
-func (c *realClock) since(d time.Time) time.Duration {
- return time.Since(d)
-}
-
-type timer interface {
- since(d time.Time) time.Duration
-}
-
-var clock timer = &realClock{}
-
-// getFreshness will return one of fresh/stale/transparent based on the cache-control
-// values of the request and the response
-//
-// fresh indicates the response can be returned
-// stale indicates that the response needs validating before it is returned
-// transparent indicates the response should not be used to fulfil the request
-//
-// Because this is only a private cache, 'public' and 'private' in cache-control aren't
-// signficant. Similarly, smax-age isn't used.
-func getFreshness(respHeaders, reqHeaders http.Header) (freshness int) {
- respCacheControl := parseCacheControl(respHeaders)
- reqCacheControl := parseCacheControl(reqHeaders)
- if _, ok := reqCacheControl["no-cache"]; ok {
- return transparent
- }
- if _, ok := respCacheControl["no-cache"]; ok {
- return stale
- }
- if _, ok := reqCacheControl["only-if-cached"]; ok {
- return fresh
- }
-
- date, err := Date(respHeaders)
- if err != nil {
- return stale
- }
- currentAge := clock.since(date)
-
- var lifetime time.Duration
- var zeroDuration time.Duration
-
- // If a response includes both an Expires header and a max-age directive,
- // the max-age directive overrides the Expires header, even if the Expires header is more restrictive.
- if maxAge, ok := respCacheControl["max-age"]; ok {
- lifetime, err = time.ParseDuration(maxAge + "s")
- if err != nil {
- lifetime = zeroDuration
- }
- } else {
- expiresHeader := respHeaders.Get("Expires")
- if expiresHeader != "" {
- expires, err := time.Parse(time.RFC1123, expiresHeader)
- if err != nil {
- lifetime = zeroDuration
- } else {
- lifetime = expires.Sub(date)
- }
- }
- }
-
- if maxAge, ok := reqCacheControl["max-age"]; ok {
- // the client is willing to accept a response whose age is no greater than the specified time in seconds
- lifetime, err = time.ParseDuration(maxAge + "s")
- if err != nil {
- lifetime = zeroDuration
- }
- }
- if minfresh, ok := reqCacheControl["min-fresh"]; ok {
- // the client wants a response that will still be fresh for at least the specified number of seconds.
- minfreshDuration, err := time.ParseDuration(minfresh + "s")
- if err == nil {
- currentAge = time.Duration(currentAge + minfreshDuration)
- }
- }
-
- if maxstale, ok := reqCacheControl["max-stale"]; ok {
- // Indicates that the client is willing to accept a response that has exceeded its expiration time.
- // If max-stale is assigned a value, then the client is willing to accept a response that has exceeded
- // its expiration time by no more than the specified number of seconds.
- // If no value is assigned to max-stale, then the client is willing to accept a stale response of any age.
- //
- // Responses served only because of a max-stale value are supposed to have a Warning header added to them,
- // but that seems like a hassle, and is it actually useful? If so, then there needs to be a different
- // return-value available here.
- if maxstale == "" {
- return fresh
- }
- maxstaleDuration, err := time.ParseDuration(maxstale + "s")
- if err == nil {
- currentAge = time.Duration(currentAge - maxstaleDuration)
- }
- }
-
- if lifetime > currentAge {
- return fresh
- }
-
- return stale
-}
-
-// Returns true if either the request or the response includes the stale-if-error
-// cache control extension: https://tools.ietf.org/html/rfc5861
-func canStaleOnError(respHeaders, reqHeaders http.Header) bool {
- respCacheControl := parseCacheControl(respHeaders)
- reqCacheControl := parseCacheControl(reqHeaders)
-
- var err error
- lifetime := time.Duration(-1)
-
- if staleMaxAge, ok := respCacheControl["stale-if-error"]; ok {
- if staleMaxAge != "" {
- lifetime, err = time.ParseDuration(staleMaxAge + "s")
- if err != nil {
- return false
- }
- } else {
- return true
- }
- }
- if staleMaxAge, ok := reqCacheControl["stale-if-error"]; ok {
- if staleMaxAge != "" {
- lifetime, err = time.ParseDuration(staleMaxAge + "s")
- if err != nil {
- return false
- }
- } else {
- return true
- }
- }
-
- if lifetime >= 0 {
- date, err := Date(respHeaders)
- if err != nil {
- return false
- }
- currentAge := clock.since(date)
- if lifetime > currentAge {
- return true
- }
- }
-
- return false
-}
-
-func getEndToEndHeaders(respHeaders http.Header) []string {
- // These headers are always hop-by-hop
- hopByHopHeaders := map[string]struct{}{
- "Connection": {},
- "Keep-Alive": {},
- "Proxy-Authenticate": {},
- "Proxy-Authorization": {},
- "Te": {},
- "Trailers": {},
- "Transfer-Encoding": {},
- "Upgrade": {},
- }
-
- for _, extra := range strings.Split(respHeaders.Get("connection"), ",") {
- // any header listed in connection, if present, is also considered hop-by-hop
- if strings.Trim(extra, " ") != "" {
- hopByHopHeaders[http.CanonicalHeaderKey(extra)] = struct{}{}
- }
- }
- endToEndHeaders := []string{}
- for respHeader := range respHeaders {
- if _, ok := hopByHopHeaders[respHeader]; !ok {
- endToEndHeaders = append(endToEndHeaders, respHeader)
- }
- }
- return endToEndHeaders
-}
-
-func canStore(reqCacheControl, respCacheControl cacheControl) (canStore bool) {
- if _, ok := respCacheControl["no-store"]; ok {
- return false
- }
- if _, ok := reqCacheControl["no-store"]; ok {
- return false
- }
- return true
-}
-
-func newGatewayTimeoutResponse(req *http.Request) *http.Response {
- var braw bytes.Buffer
- braw.WriteString("HTTP/1.1 504 Gateway Timeout\r\n\r\n")
- resp, err := http.ReadResponse(bufio.NewReader(&braw), req)
- if err != nil {
- panic(err)
- }
- return resp
-}
-
-// cloneRequest returns a clone of the provided *http.Request.
-// The clone is a shallow copy of the struct and its Header map.
-// (This function copyright goauth2 authors: https://code.google.com/p/goauth2)
-func cloneRequest(r *http.Request) *http.Request {
- // shallow copy of the struct
- r2 := new(http.Request)
- *r2 = *r
- // deep copy of the Header
- r2.Header = make(http.Header)
- for k, s := range r.Header {
- r2.Header[k] = s
- }
- return r2
-}
-
-type cacheControl map[string]string
-
-func parseCacheControl(headers http.Header) cacheControl {
- cc := cacheControl{}
- ccHeader := headers.Get("Cache-Control")
- for _, part := range strings.Split(ccHeader, ",") {
- part = strings.Trim(part, " ")
- if part == "" {
- continue
- }
- if strings.ContainsRune(part, '=') {
- keyval := strings.Split(part, "=")
- cc[strings.Trim(keyval[0], " ")] = strings.Trim(keyval[1], ",")
- } else {
- cc[part] = ""
- }
- }
- return cc
-}
-
-// headerAllCommaSepValues returns all comma-separated values (each
-// with whitespace trimmed) for header name in headers. According to
-// Section 4.2 of the HTTP/1.1 spec
-// (http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2),
-// values from multiple occurrences of a header should be concatenated, if
-// the header's value is a comma-separated list.
-func headerAllCommaSepValues(headers http.Header, name string) []string {
- var vals []string
- for _, val := range headers[http.CanonicalHeaderKey(name)] {
- fields := strings.Split(val, ",")
- for i, f := range fields {
- fields[i] = strings.TrimSpace(f)
- }
- vals = append(vals, fields...)
- }
- return vals
-}
-
-// cachingReadCloser is a wrapper around ReadCloser R that calls OnEOF
-// handler with a full copy of the content read from R when EOF is
-// reached.
-type cachingReadCloser struct {
- // Underlying ReadCloser.
- R io.ReadCloser
- // OnEOF is called with a copy of the content of R when EOF is reached.
- OnEOF func(io.Reader)
-
- buf bytes.Buffer // buf stores a copy of the content of R.
-}
-
-// Read reads the next len(p) bytes from R or until R is drained. The
-// return value n is the number of bytes read. If R has no data to
-// return, err is io.EOF and OnEOF is called with a full copy of what
-// has been read so far.
-func (r *cachingReadCloser) Read(p []byte) (n int, err error) {
- n, err = r.R.Read(p)
- r.buf.Write(p[:n])
- if err == io.EOF {
- r.OnEOF(bytes.NewReader(r.buf.Bytes()))
- }
- return n, err
-}
-
-func (r *cachingReadCloser) Close() error {
- return r.R.Close()
-}
-
-// NewMemoryCacheTransport returns a new Transport using the in-memory cache implementation
-func NewMemoryCacheTransport() *Transport {
- c := NewMemoryCache()
- t := NewTransport(c)
- return t
-}
# github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674
## explicit; go 1.20
github.com/gorilla/websocket
-# github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79
-## explicit
-github.com/gregjones/httpcache
# github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.0.1
## explicit; go 1.19
github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus
projects / 0xmirror / kubernetes.git / commitdiff