init

go-gost/x/handler/http2/metadata.go

@@ -0,0 +1,68 @@
+package http2
+
+import (
+	"net/http"
+	"strings"
+	"time"
+
+	mdata "github.com/go-gost/core/metadata"
+	mdutil "github.com/go-gost/x/metadata/util"
+)
+
+const (
+	defaultRealm = "gost"
+)
+
+type metadata struct {
+	probeResistance      *probeResistance
+	header               http.Header
+	hash                 string
+	authBasicRealm       string
+	observerPeriod       time.Duration
+	observerResetTraffic bool
+
+	limiterRefreshInterval time.Duration
+	limiterCleanupInterval time.Duration
+}
+
+func (h *http2Handler) parseMetadata(md mdata.Metadata) error {
+	if m := mdutil.GetStringMapString(md, "http.header", "header"); len(m) > 0 {
+		hd := http.Header{}
+		for k, v := range m {
+			hd.Add(k, v)
+		}
+		h.md.header = hd
+	}
+
+	if pr := mdutil.GetString(md, "probeResist", "probe_resist"); pr != "" {
+		if ss := strings.SplitN(pr, ":", 2); len(ss) == 2 {
+			h.md.probeResistance = &probeResistance{
+				Type:  ss[0],
+				Value: ss[1],
+				Knock: mdutil.GetString(md, "knock"),
+			}
+		}
+	}
+	h.md.hash = mdutil.GetString(md, "hash")
+	h.md.authBasicRealm = mdutil.GetString(md, "authBasicRealm")
+
+	h.md.observerPeriod = mdutil.GetDuration(md, "observePeriod", "observer.period", "observer.observePeriod")
+	if h.md.observerPeriod == 0 {
+		h.md.observerPeriod = 5 * time.Second
+	}
+	if h.md.observerPeriod < time.Second {
+		h.md.observerPeriod = time.Second
+	}
+	h.md.observerResetTraffic = mdutil.GetBool(md, "observer.resetTraffic")
+
+	h.md.limiterRefreshInterval = mdutil.GetDuration(md, "limiter.refreshInterval")
+	h.md.limiterCleanupInterval = mdutil.GetDuration(md, "limiter.cleanupInterval")
+
+	return nil
+}
+
+type probeResistance struct {
+	Type  string
+	Value string
+	Knock string
+}