add nvdmirror, including cache iface, jsoncache impl, Sync() func, and test data

1 files changed, 22 insertions, 0 deletions

diff --git a/nvdmirror/cache.go b/nvdmirror/cache.go
new file mode 100644
index 0000000..d65b2c7
--- /dev/null
+++ b/nvdmirror/cache.go
@@ -0,0 +1,22 @@
+package nvdmirror
+
+import (
+  "time"
+)
+
+// Cache entry
+type Entry struct {
+  // time that entry was set
+  Time time.Time `json:"time"`
+  Headers map[string]string `json:"headers"`
+}
+
+// URL cache
+type Cache interface {
+  Get(string) (map[string]string, bool)
+  Set(string, map[string]string) error
+
+  // delete cache entry 
+  Delete(string) error
+  Close() error // save and close cache file
+}