Attempt to stop AI bots using Anubis

1 files changed, 29 insertions, 2 deletions

diff --git a/vendor/github.com/fxamacker/cbor/v2/bytestring.go b/vendor/github.com/fxamacker/cbor/v2/bytestring.go
index 52a28ed..23c5724 100644
--- a/vendor/github.com/fxamacker/cbor/v2/bytestring.go
+++ b/vendor/github.com/fxamacker/cbor/v2/bytestring.go
@@ -22,8 +22,8 @@ func (bs ByteString) Bytes() []byte {
 
 // MarshalCBOR encodes ByteString as CBOR byte string (major type 2).
 func (bs ByteString) MarshalCBOR() ([]byte, error) {
-	e := getEncoderBuffer()
-	defer putEncoderBuffer(e)
+	e := getEncodeBuffer()
+	defer putEncodeBuffer(e)
 
 	// Encode length
 	encodeHead(e, byte(cborTypeByteString), uint64(len(bs)))
@@ -38,11 +38,38 @@ func (bs ByteString) MarshalCBOR() ([]byte, error) {
 
 // UnmarshalCBOR decodes CBOR byte string (major type 2) to ByteString.
 // Decoding CBOR null and CBOR undefined sets ByteString to be empty.
+//
+// Deprecated: No longer used by this codec; kept for compatibility
+// with user apps that directly call this function.
 func (bs *ByteString) UnmarshalCBOR(data []byte) error {
 	if bs == nil {
 		return errors.New("cbor.ByteString: UnmarshalCBOR on nil pointer")
 	}
 
+	d := decoder{data: data, dm: defaultDecMode}
+
+	// Check well-formedness of CBOR data item.
+	// ByteString.UnmarshalCBOR() is exported, so
+	// the codec needs to support same behavior for:
+	// - Unmarshal(data, *ByteString)
+	// - ByteString.UnmarshalCBOR(data)
+	err := d.wellformed(false, false)
+	if err != nil {
+		return err
+	}
+
+	return bs.unmarshalCBOR(data)
+}
+
+// unmarshalCBOR decodes CBOR byte string (major type 2) to ByteString.
+// Decoding CBOR null and CBOR undefined sets ByteString to be empty.
+// This function assumes data is well-formed, and does not perform bounds checking.
+// This function is called by Unmarshal().
+func (bs *ByteString) unmarshalCBOR(data []byte) error {
+	if bs == nil {
+		return errors.New("cbor.ByteString: UnmarshalCBOR on nil pointer")
+	}
+
 	// Decoding CBOR null and CBOR undefined to ByteString resets data.
 	// This behavior is similar to decoding CBOR null and CBOR undefined to []byte.
 	if len(data) == 1 && (data[0] == 0xf6 || data[0] == 0xf7) {