Plugins support (#46)

* modify * update * add acl * add feature * update dockerfile * add deploy * update * update * plugins * plugins * update * update * update * fixed * remove * fixed * add log * update * fixed * update * fix config * add http api * add http api * resp * add config for work chan * update * fixed * update * disable trace * fixed * change acl * fixed * fixed res * dd * dd * ddd * dd * update * fixed * update * add * fixed * update key * add log * update * format * update * update auth * update * update readme * added * update * fixed * fixed * fix * upade * update * update
2026-09-01 23:34:52 +00:00 · 2019-07-25 13:54:42 +08:00
parent daf4a0e0f5
commit c6b1f1db42
770 changed files with 213077 additions and 2659 deletions
@@ -0,0 +1,40 @@
+package rfc4757
+
+import (
+	"bytes"
+	"crypto/hmac"
+	"crypto/md5"
+	"io"
+)
+
+// Checksum returns a hash of the data in accordance with RFC 4757
+func Checksum(key []byte, usage uint32, data []byte) ([]byte, error) {
+	// Create hashing key
+	s := append([]byte(`signaturekey`), byte(0x00)) //includes zero octet at end
+	mac := hmac.New(md5.New, key)
+	mac.Write(s)
+	Ksign := mac.Sum(nil)
+
+	// Format data
+	tb := UsageToMSMsgType(usage)
+	p := append(tb, data...)
+	h := md5.New()
+	rb := bytes.NewReader(p)
+	_, err := io.Copy(h, rb)
+	if err != nil {
+		return []byte{}, err
+	}
+	tmp := h.Sum(nil)
+
+	// Generate HMAC
+	mac = hmac.New(md5.New, Ksign)
+	mac.Write(tmp)
+	return mac.Sum(nil), nil
+}
+
+// HMAC returns a keyed MD5 checksum of the data
+func HMAC(key []byte, data []byte) []byte {
+	mac := hmac.New(md5.New, key)
+	mac.Write(data)
+	return mac.Sum(nil)
+}