Initial commit

bodyintercept.go

@@ -0,0 +1,30 @@
+package potency
+
+import (
+	"crypto/sha256"
+	"hash"
+	"io"
+)
+
+type bodyIntercept struct {
+	source io.ReadCloser
+	sha256 hash.Hash
+}
+
+func newBodyIntercept(source io.ReadCloser) *bodyIntercept {
+	return &bodyIntercept{
+		source: source,
+		sha256: sha256.New(),
+	}
+}
+
+func (bi *bodyIntercept) Read(p []byte) (int, error) {
+	numBytes, err := bi.source.Read(p)
+	bi.sha256.Write(p[:numBytes])
+
+	return numBytes, err
+}
+
+func (bi *bodyIntercept) Close() error {
+	return bi.source.Close()
+}