From 6f889af4b0d99ee714bfe33e7f864bc35f567097 Mon Sep 17 00:00:00 2001
From: Paul Duncan <pabs@pablotron.org>
Date: Tue, 1 Feb 2022 14:24:40 -0500
Subject: internal/feed: add v2accesscomplexity, tests

---
 internal/feed/v2accesscomplexity.go | 42 +++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 internal/feed/v2accesscomplexity.go

(limited to 'internal/feed/v2accesscomplexity.go')

diff --git a/internal/feed/v2accesscomplexity.go b/internal/feed/v2accesscomplexity.go
new file mode 100644
index 0000000..5885e0d
--- /dev/null
+++ b/internal/feed/v2accesscomplexity.go
@@ -0,0 +1,42 @@
+package feed
+
+//go:generate stringer -linecomment -type=V2AccessComplexity
+
+import (
+  "encoding/json"
+  "fmt"
+)
+
+// CVSS v2 access complexity
+type V2AccessComplexity byte
+
+const (
+  V2ACLow V2AccessComplexity = iota // LOW
+  V2ACMedium // MEDIUM
+  V2ACHigh // HIGH
+)
+
+// Unmarshal CVSS V2 access complexity from JSON.
+func (me *V2AccessComplexity) UnmarshalJSON(b []byte) error {
+  // decode string, check for error
+  var s string
+  if err := json.Unmarshal(b, &s); err != nil {
+    return err
+  }
+
+  // check value
+  switch s {
+  case "LOW":
+    *me = V2ACLow
+  case "MEDIUM":
+    *me = V2ACMedium
+  case "HIGH":
+    *me = V2ACHigh
+  default:
+    // return error
+    return fmt.Errorf("unknown CVSS v2 access complexity: %s", s)
+  }
+
+  // return success
+  return nil
+}
-- 
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