From 51bd0ad1ef5e012156288a6a6239d3471de48990 Mon Sep 17 00:00:00 2001
From: asonix <asonix@asonix.dog>
Date: Fri, 17 Jan 2020 16:59:42 -0600
Subject: [PATCH] Implement DigestVerify for Tuples

---
 .../src/digest/mod.rs                         | 33 +++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/http-signature-normalization-warp/src/digest/mod.rs b/http-signature-normalization-warp/src/digest/mod.rs
index bc8977e..9ad7caa 100644
--- a/http-signature-normalization-warp/src/digest/mod.rs
+++ b/http-signature-normalization-warp/src/digest/mod.rs
@@ -105,6 +105,39 @@ where
     }
 }
 
+impl<T, U> DigestVerify for (T, U)
+where
+    T: DigestVerify,
+    U: DigestVerify,
+{
+    fn verify(&mut self, parts: &[DigestPart], payload: &[u8]) -> bool {
+        self.0.verify(parts, payload) || self.1.verify(parts, payload)
+    }
+}
+
+impl<T, U, V> DigestVerify for (T, U, V)
+where
+    T: DigestVerify,
+    U: DigestVerify,
+    V: DigestVerify,
+{
+    fn verify(&mut self, parts: &[DigestPart], payload: &[u8]) -> bool {
+        self.0.verify(parts, payload) || self.1.verify(parts, payload) || self.2.verify(parts, payload)
+    }
+}
+
+impl<T, U, V, W> DigestVerify for (T, U, V, W)
+where
+    T: DigestVerify,
+    U: DigestVerify,
+    V: DigestVerify,
+    W: DigestVerify,
+{
+    fn verify(&mut self, parts: &[DigestPart], payload: &[u8]) -> bool {
+        self.0.verify(parts, payload) || self.1.verify(parts, payload) || self.2.verify(parts, payload) || self.3.verify(parts, payload)
+    }
+}
+
 impl FromStr for DigestPart {
     type Err = ParseDigestError;