Merge pull request #154 from larrydewey/additional-cert-tests

snp-certs: Adding unit tests
virtee · Feb 16, 2024 · dae3193 · dae3193
2 parents fd67a31 + f286ba3
commit dae3193
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Showing 2 changed files with 203 additions and 9 deletions.
diff --git a/src/certs/snp/cert.rs b/src/certs/snp/cert.rs
@@ -11,19 +11,18 @@ use openssl::x509::X509;
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct Certificate(X509);
 
-#[derive(Clone, Copy, Debug)]
-enum CertFormat {
+#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+pub enum CertFormat {
     Pem,
     Der,
 }
 
-impl ToString for CertFormat {
-    fn to_string(&self) -> String {
+impl std::fmt::Display for CertFormat {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            Self::Pem => "pem",
-            Self::Der => "der",
+            Self::Pem => write!(f, "pem"),
+            Self::Der => write!(f, "der"),
         }
-        .to_string()
     }
 }
 
@@ -109,7 +108,7 @@ impl Certificate {
 
     /// Identifies the format of a certificate based upon the first twenty-seven
     /// bytes of a byte stream. A non-PEM format assumes DER format.
-    fn identify_format(bytes: &[u8]) -> CertFormat {
+    pub fn identify_format(bytes: &[u8]) -> CertFormat {
         const PEM_START: &[u8] = b"-----BEGIN CERTIFICATE-----";
         match &bytes[0..27] {
             PEM_START => CertFormat::Pem,
@@ -125,3 +124,196 @@ impl Certificate {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+
+    use super::*;
+
+    #[test]
+    fn test_identify_format_pem() {
+        let dummy_pem: &[u8] = br#"-----BEGIN CERTIFICATE-----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+bKAeam3lm+3yKIcTYMlsRMXPcjNbIvmsBykD//xSniusuHBkgnlENEWx1UcbQQrs
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+KWh0dHBzOi8va2RzaW50Zi5hbWQuY29tL3ZjZWsvdjEvTWlsYW4vY3JsMEYGCSqG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+-----END CERTIFICATE-----"#;
+
+        assert_eq!(Certificate::identify_format(dummy_pem), CertFormat::Pem)
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_identify_format_panic_pem() {
+        let dummy_pem: &[u8] = b"-----BEGIN CERTIFICATE---";
+
+        assert_eq!(Certificate::identify_format(dummy_pem), CertFormat::Pem)
+    }
+
+    #[test]
+    #[should_panic]
+    fn test_identify_format_panic_der() {
+        let dummy_der: &[u8] = &[
+            0x30, 0x82, 0x06, 0x63, 0x30, 0x82, 0x04, 0x12, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02,
+        ];
+
+        assert_eq!(Certificate::identify_format(dummy_der), CertFormat::Der)
+    }
+
+    #[test]
+    fn test_identify_format_der() {
+        let dummy_der: &[u8] = &[
+            0x30, 0x82, 0x06, 0x63, 0x30, 0x82, 0x04, 0x12, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02,
+            0x03, 0x01, 0x00, 0x00, 0x30, 0x46, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
+            0x01, 0x01, 0x0a, 0x30, 0x39, 0xa0, 0x0f, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48,
+            0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0xa1, 0x1c, 0x30, 0x1a, 0x06, 0x09,
+            0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x08, 0x30, 0x0d, 0x06, 0x09, 0x60,
+            0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0xa2, 0x03, 0x02, 0x01,
+            0x30, 0xa3, 0x03, 0x02, 0x01, 0x01, 0x30, 0x7b, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03,
+            0x55, 0x04, 0x0b, 0x0c, 0x0b, 0x45, 0x6e, 0x67, 0x69, 0x6e, 0x65, 0x65, 0x72, 0x69,
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+            0x32, 0x31, 0x37, 0x32, 0x33, 0x30, 0x35, 0x5a, 0x17, 0x0d, 0x34, 0x35, 0x31, 0x30,
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+            0xb7, 0x79, 0xd9, 0x12, 0x4e, 0x75, 0xe8, 0x89, 0x96, 0xa2, 0xb6, 0x25, 0xdb, 0x15,
+            0x98, 0x3e, 0xc5, 0x92, 0xdb, 0xa8, 0xb5, 0x6c, 0x17, 0xd5, 0xf3, 0x60, 0x5b, 0x8d,
+            0x57, 0x63, 0xd5, 0xf3, 0xd4, 0x71, 0x21, 0x49, 0x49, 0xa1, 0x2f, 0x3f, 0x42, 0xbb,
+            0xd0, 0xc7, 0x46, 0x5b, 0xe0, 0x25, 0x23, 0x71, 0x6d, 0xe6, 0x18, 0xb2, 0x72, 0x5f,
+            0xbf, 0x28, 0xf1, 0xd4, 0xc7, 0xd4, 0xd1, 0x5e, 0x6d, 0x90, 0xa8, 0x94, 0xd4, 0x47,
+            0xac, 0x34, 0x5b, 0x5a, 0xd6, 0x44, 0xc0, 0xd2, 0xcc, 0xcd, 0x8a, 0xc7, 0x58, 0x73,
+            0xd8, 0xac, 0xaa, 0x4e, 0xe6, 0x5d, 0x3e, 0x7e, 0x29, 0xf1, 0x91, 0x6d, 0xf7, 0x38,
+            0x57, 0xff, 0x73, 0x44, 0x87, 0x04, 0xf2, 0x39, 0x47, 0x37, 0xad, 0x52, 0xd6, 0x3b,
+            0xbc, 0x5f, 0xdd, 0xfe, 0xe9, 0xdc, 0x43, 0x52, 0xb1, 0xb6, 0x4b, 0x3c, 0x6a, 0x27,
+            0x80, 0x61, 0xab, 0x26, 0x26, 0x50, 0x3a, 0xee, 0x3d, 0x72, 0x52, 0x5f, 0x8b, 0xd4,
+            0x73, 0x4d, 0x4f, 0xee, 0x3f, 0x7c, 0x32, 0x9a, 0x8e, 0x4b, 0xde, 0x6b, 0x39, 0x17,
+            0x46, 0x1d, 0xe2, 0x39, 0xd8, 0xd6, 0xb3, 0xe6, 0x6d, 0x81, 0xf8, 0xef, 0xaf, 0x8e,
+            0xc0, 0xb4, 0xeb, 0x47, 0x77, 0xee, 0x36, 0x3d, 0x2c, 0x57, 0xae, 0x38, 0xfe, 0x0c,
+            0x7a, 0xb8, 0xbc, 0xaa, 0x07, 0xe2, 0xd9, 0x2e, 0x64, 0x2a, 0xa8, 0x3f, 0x68, 0x5e,
+            0x9a, 0x3e, 0xdb, 0x80, 0x65, 0x05, 0x51, 0xee, 0xed, 0xca, 0x15, 0x85, 0xcf, 0xe7,
+            0xd5, 0xe6, 0x26, 0x0b, 0x5c, 0xa2, 0x0d, 0x39, 0x82, 0x62, 0x34, 0x4f, 0xf3, 0xa2,
+            0xb4, 0xb8, 0x6e, 0xcd, 0x5b, 0xe9, 0x65, 0xc2, 0xe9, 0x87, 0x4a, 0x1d, 0x87, 0xfd,
+            0x48, 0x3d, 0x7a, 0xb1, 0xdf, 0xe3, 0x27, 0x8c, 0x3f, 0x7b, 0x03, 0xb7, 0xd7, 0xa6,
+            0xa1, 0x9d, 0xff, 0x2f, 0x0a, 0xc5, 0x7e, 0xe3, 0x92, 0xc4, 0xc4, 0xcc, 0x03, 0xa0,
+            0x6c, 0xa0, 0x1e, 0x6a, 0x6d, 0xe5, 0x9b, 0xed, 0xf2, 0x28, 0x87, 0x13, 0x60, 0xc9,
+            0x6c, 0x44, 0xc5, 0xcf, 0x72, 0x33, 0x5b, 0x22, 0xf9, 0xac, 0x07, 0x29, 0x03, 0xff,
+            0xfc, 0x52, 0x9e, 0x2b, 0xac, 0xb8, 0x70, 0x64, 0x82, 0x79, 0x44, 0x34, 0x45, 0xb1,
+            0xd5, 0x47, 0x1b, 0x41, 0x0a, 0xec, 0xfa, 0x05, 0x43, 0x92, 0xe5, 0x4f, 0x86, 0xc9,
+            0xf3, 0x21, 0x13, 0x60, 0x62, 0xf3, 0x38, 0xf1, 0x8f, 0xbb, 0x2c, 0x68, 0x89, 0x62,
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+            0xf5, 0x32, 0x50, 0xaa, 0x73, 0x77, 0x43, 0x9d, 0xe4, 0xb7, 0x9b, 0xe2, 0x42, 0x2d,
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+            0xb6, 0x31, 0x9b, 0x3d, 0x8c, 0x42, 0xbe, 0x90, 0xaa, 0xef, 0xe3, 0xa0, 0xa4, 0x20,
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+            0x53, 0x8c, 0x4f, 0xc9, 0xd6, 0x01, 0x4b, 0xd1, 0x64, 0x5c, 0xed, 0x79, 0x70, 0xa6,
+            0xfb, 0xb3, 0xc7, 0x75, 0x83, 0xe5, 0x99, 0x0c, 0x14, 0xc3, 0x72, 0xef, 0x7a, 0x72,
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+            0x30, 0x7c, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff, 0x04, 0x04,
+            0x03, 0x02, 0x01, 0x06, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e, 0x04, 0x16, 0x04,
+            0x14, 0x85, 0xac, 0x1a, 0xd1, 0x43, 0xf7, 0xc8, 0xac, 0x55, 0xd4, 0xc5, 0x1d, 0x41,
+            0x48, 0xab, 0xd5, 0x78, 0x4a, 0xd4, 0x53, 0x30, 0x0f, 0x06, 0x03, 0x55, 0x1d, 0x13,
+            0x01, 0x01, 0xff, 0x04, 0x05, 0x30, 0x03, 0x01, 0x01, 0xff, 0x30, 0x3a, 0x06, 0x03,
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+            0xf7, 0x0d, 0x01, 0x01, 0x08, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65,
+            0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0xa2, 0x03, 0x02, 0x01, 0x30, 0xa3, 0x03, 0x02,
+            0x01, 0x01, 0x03, 0x82, 0x02, 0x01, 0x00, 0xba, 0x9b, 0x49, 0x03, 0xa7, 0xac, 0xef,
+            0xe0, 0xe8, 0xdf, 0x83, 0x2f, 0xb3, 0x95, 0xe7, 0xa1, 0xb3, 0x1e, 0xa8, 0x97, 0x4a,
+            0x1c, 0x81, 0x57, 0xa5, 0x11, 0x3a, 0x1b, 0xa7, 0x1f, 0x84, 0xb8, 0x2b, 0x2a, 0x54,
+            0x54, 0x4f, 0x2b, 0x58, 0xd9, 0xd6, 0xca, 0x7f, 0x97, 0x27, 0x7d, 0xfb, 0x47, 0xd0,
+            0xd2, 0xbe, 0xba, 0x9f, 0xb9, 0x1a, 0x81, 0x19, 0x38, 0x09, 0xad, 0xfd, 0x83, 0xae,
+            0x96, 0x19, 0x32, 0x4c, 0x78, 0x97, 0x6a, 0x62, 0xb8, 0xb0, 0x49, 0x38, 0xe3, 0x0c,
+            0x22, 0x95, 0x3d, 0x27, 0xac, 0x59, 0x76, 0x0f, 0x54, 0x0c, 0x83, 0x86, 0x63, 0xf9,
+            0x9f, 0x6b, 0xfe, 0x05, 0x88, 0xa9, 0x65, 0x68, 0x69, 0xbe, 0xaa, 0x5a, 0x88, 0xef,
+            0x84, 0x18, 0xae, 0x48, 0x04, 0xff, 0xb9, 0xef, 0xc4, 0x1e, 0x5b, 0xfb, 0x12, 0xa2,
+            0x4a, 0xca, 0x74, 0x76, 0x8b, 0x03, 0x11, 0xb6, 0x2e, 0x16, 0x71, 0x8f, 0xd6, 0x85,
+            0xef, 0x77, 0xea, 0x0b, 0xb3, 0x80, 0x25, 0x9e, 0x5a, 0x3e, 0x89, 0xf0, 0xe1, 0x11,
+            0x36, 0xf7, 0xd1, 0x55, 0x6a, 0xb8, 0x75, 0x4f, 0x1d, 0x9e, 0x4f, 0x7c, 0x12, 0x82,
+            0x40, 0xe0, 0xba, 0xd0, 0x93, 0x07, 0x56, 0x2a, 0xcd, 0x3e, 0x43, 0xbb, 0x0b, 0xc0,
+            0x7b, 0xe7, 0x28, 0xd8, 0x22, 0x15, 0x23, 0x33, 0x03, 0x6a, 0x66, 0x2e, 0x48, 0x58,
+            0xcf, 0x37, 0x40, 0x42, 0x82, 0x88, 0xe5, 0xed, 0x5f, 0x9b, 0x4e, 0x8b, 0xbb, 0x74,
+            0xcb, 0x2a, 0x22, 0xef, 0xd3, 0x5b, 0xfa, 0xcf, 0x09, 0x7f, 0x7f, 0x11, 0x47, 0x29,
+            0x28, 0x62, 0xaa, 0x3d, 0x0d, 0xcf, 0xf8, 0xdf, 0x6b, 0xd6, 0x18, 0xc4, 0x15, 0x8d,
+            0x69, 0x94, 0x18, 0x3d, 0xde, 0xde, 0x77, 0x38, 0xea, 0x38, 0xf4, 0x63, 0x48, 0xf9,
+            0x5d, 0x73, 0xbd, 0x73, 0xcb, 0x23, 0xac, 0x48, 0x15, 0x5b, 0x21, 0xfa, 0x6b, 0x68,
+            0xd9, 0x1b, 0x60, 0x11, 0x7f, 0xde, 0xa6, 0x63, 0x0a, 0x4c, 0xd3, 0x7a, 0xa6, 0xc5,
+            0xbc, 0xf2, 0xa8, 0x3b, 0x73, 0x58, 0x53, 0x5a, 0xd3, 0x7a, 0x31, 0xb4, 0x6e, 0x43,
+            0x4b, 0xe6, 0xf8, 0xef, 0xbf, 0xda, 0xd2, 0x81, 0x17, 0x68, 0x7c, 0x4c, 0x76, 0xfd,
+            0xe0, 0xeb, 0xef, 0x1c, 0x7a, 0x05, 0x0e, 0x96, 0xc2, 0x10, 0xb9, 0x6a, 0x1e, 0x72,
+            0x18, 0x87, 0x1c, 0xb4, 0x60, 0xa5, 0xc6, 0xc9, 0xa5, 0xb5, 0x36, 0x37, 0xd4, 0x2f,
+            0x1a, 0xeb, 0x9b, 0x15, 0x56, 0xe3, 0x07, 0x27, 0xe4, 0x4f, 0x06, 0x75, 0xd9, 0xaf,
+            0x35, 0xae, 0xb2, 0x62, 0x6f, 0x2c, 0x70, 0x96, 0xa0, 0x12, 0x2d, 0x77, 0x9a, 0x11,
+            0xae, 0xe0, 0x9a, 0xa1, 0xdd, 0x05, 0x37, 0xb1, 0xff, 0x22, 0x51, 0x25, 0x2b, 0xd3,
+            0xdc, 0x50, 0x0f, 0x01, 0xed, 0x39, 0x05, 0x15, 0x22, 0xac, 0x78, 0x99, 0xa0, 0x59,
+            0x3c, 0x1b, 0x52, 0x31, 0xff, 0xaa, 0x50, 0x3b, 0x63, 0x5d, 0x24, 0xaa, 0xf2, 0x57,
+            0xd6, 0x71, 0xdf, 0x1b, 0x2e, 0xbf, 0x66, 0x76, 0xc5, 0x27, 0x25, 0x92, 0x74, 0xfa,
+            0xdb, 0x8f, 0x30, 0xa9, 0x81, 0x9d, 0x21, 0xfc, 0xeb, 0x49, 0x65, 0x2a, 0x4f, 0x95,
+            0xa5, 0x54, 0x2c, 0x82, 0xa6, 0xf3, 0x0c, 0x8b, 0xce, 0x2e, 0xf0, 0xfa, 0x5b, 0x55,
+            0x26, 0xab, 0x6e, 0x5b, 0xa3, 0x10, 0x98, 0x27, 0xe4, 0xee, 0x06, 0x86, 0xb8, 0xb3,
+            0xe1, 0xc7, 0x09, 0x58, 0x80, 0xbe, 0x04, 0xfd, 0x91, 0xff, 0xeb, 0x06, 0xad, 0x5d,
+            0xfa, 0x2b, 0xe3, 0xea, 0xc9, 0x24, 0x1f, 0x1b, 0xb3, 0x73, 0x16, 0xe4, 0xd7, 0x1b,
+            0xfa, 0x64, 0x6c, 0x6b, 0xb5, 0xe2, 0x71, 0x54, 0x7e, 0xca, 0x95, 0x7e, 0xd8, 0x45,
+            0xd6, 0x7a, 0x78, 0x04, 0x4a, 0xc0, 0xb7, 0xb8, 0x00, 0x56, 0x44, 0x03, 0x0a, 0x0a,
+            0x09,
+        ];
+
+        assert_eq!(Certificate::identify_format(dummy_der), CertFormat::Der)
+    }
+}
diff --git a/src/error.rs b/src/error.rs
@@ -13,7 +13,9 @@ use std::os::raw::c_int;
 
 #[cfg(feature = "openssl")]
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub(crate) enum CertFormatError {
+/// Used for representing known errors when handling snp::Certificates.
+pub enum CertFormatError {
+    /// Unknown certificate format identified.
     UnknownFormat,
 }