refactor(cert): introducing new management page

1. User can now view the latest renew logs of the certain certificate.

2. Add manually renew button in certificate modify page for managed certificate (auto cert)

internal/cert/issue.go

@@ -0,0 +1,43 @@
+package cert
+
+import (
+    "crypto"
+    "github.com/go-acme/lego/v4/registration"
+)
+
+type ChannelWriter struct {
+    Ch chan []byte
+}
+
+func NewChannelWriter() *ChannelWriter {
+    return &ChannelWriter{
+        Ch: make(chan []byte, 1024),
+    }
+}
+
+func (cw *ChannelWriter) Write(p []byte) (n int, err error) {
+    n = len(p)
+    temp := make([]byte, n)
+    copy(temp, p)
+    cw.Ch <- temp
+    return n, nil
+}
+
+// User You'll need a user or account type that implements acme.User
+type User struct {
+    Email        string
+    Registration *registration.Resource
+    Key          crypto.PrivateKey
+}
+
+func (u *User) GetEmail() string {
+    return u.Email
+}
+
+func (u *User) GetRegistration() *registration.Resource {
+    return u.Registration
+}
+
+func (u *User) GetPrivateKey() crypto.PrivateKey {
+    return u.Key
+}