Replace sha1 dependency with sha-1 (actix#1258)

* Replace sha1 dependency with sha-1

This other crate is being maintained, and it offers better performances
when using the `asm` feature (especially [on
AArch64](RustCrypto/hashes#97)).

* Update CHANGES.md with the sha-1 migration

* Add a test for hash_key()

CHANGES.md

@@ -1,5 +1,11 @@
 # Changes
 
+## [2.0.NEXT] - 2020-01-xx
+
+### Changed
+
+*  Use `sha-1` crate instead of unmaintained `sha1` crate
+
 ## [2.0.0] - 2019-12-25
 
 ### Changed

actix-http/Cargo.toml

@@ -74,7 +74,7 @@ rand = "0.7"
 regex = "1.3"
 serde = "1.0"
 serde_json = "1.0"
-sha1 = "0.6"
+sha-1 = "0.8"
 slab = "0.4"
 serde_urlencoded = "0.6.1"
 time = "0.1.42"

actix-http/src/ws/proto.rs

@@ -207,12 +207,13 @@ static WS_GUID: &str = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
 
 // TODO: hash is always same size, we dont need String
 pub fn hash_key(key: &[u8]) -> String {
+    use sha1::Digest;
     let mut hasher = sha1::Sha1::new();
 
-    hasher.update(key);
-    hasher.update(WS_GUID.as_bytes());
+    hasher.input(key);
+    hasher.input(WS_GUID.as_bytes());
 
-    base64::encode(&hasher.digest().bytes())
+    base64::encode(hasher.result().as_ref())
 }
 
 #[cfg(test)]
@@ -277,6 +278,12 @@ mod test {
         assert_eq!(format!("{}", OpCode::Bad), "BAD");
     }
 
+    #[test]
+    fn test_hash_key() {
+        let hash = hash_key(b"hello actix-web");
+        assert_eq!(&hash, "cR1dlyUUJKp0s/Bel25u5TgvC3E=");
+    }
+
     #[test]
     fn closecode_from_u16() {
         assert_eq!(CloseCode::from(1000u16), CloseCode::Normal);