Add AuthTok struc and Auth funcs

auth.go

@@ -0,0 +1,80 @@
+package main
+
+import (
+	"crypto/sha256"
+	"encoding/json"
+)
+
+func (a *AuthToken) NewSHA256() string {
+	json, _ := json.Marshal(a)
+	hash := sha256.Sum256(json)
+	return string(hash[:])
+}
+func NewSHA256(s string) string {
+	hash := sha256.Sum256([]byte(s))
+	return string(hash[:])
+}
+
+func UpdateAuthToken(old *AuthToken, new *AuthToken) {
+	old.Retrieve()
+	old.Current = "false"
+	if new.Identifier == old.Identifier {
+		new.PreviousHash = old.NewSHA256()
+		new.Current = "true"
+		new.Insert()
+		old.Insert()
+	}
+}
+
+func TryPassword(a *AuthToken, password string, ipAddr string) (bool, *User) {
+	a.Current = "true"
+	a.Retrieve()
+	b := a
+	if NewSHA256(password) == b.PasswordHash {
+		b.LastIP = ipAddr
+		UpdateAuthToken(a, b)
+		u := User{
+			Identifier: b.Identifier,
+			Username:   b.Username,
+			Email:      b.Email,
+		}
+		err := u.Retrieve()
+		if err != nil {
+			return false, nil
+		}
+		return true, &u
+	}
+	return false, nil
+
+}
+
+func ChangePassword(a *AuthToken, password string, ipAddr string) (bool, *AuthToken) {
+	a.Current = "true"
+	a.Retrieve()
+	if a.Identifier == "" {
+		return false, nil
+	}
+	b := a
+	b.PasswordHash = NewSHA256(password)
+	b.LastIP = ipAddr
+	UpdateAuthToken(a, b)
+	return true, b
+}
+
+func TryAuthToken(a *AuthToken) (bool, *User) {
+	a.Current = "true"
+	a.Retrieve()
+	if a.Identifier != "" {
+		u := User{
+			Identifier: a.Identifier,
+			Username:   a.Username,
+			Email:      a.Email,
+		}
+		err := u.Retrieve()
+		if err != nil {
+			return false, nil
+		}
+		return true, &u
+	}
+	return false, nil
+}

database.go

@@ -487,3 +487,15 @@ func (d *DownloadStats) Delete() {
 	LogMsg("Delete complete. Closing!")
 	delete.Close()
 }
+
+func (a *AuthToken) Retrieve() {
+
+}
+func (a *AuthToken) Insert() {
+
+}
+func (a *AuthToken) Delete() {
+
+}
+
+

types.go

@@ -81,3 +81,14 @@ type DownloadStats struct {
 
 	GlassAppID string
 }
+
+type AuthToken struct {
+	Identifier string
+	Email string
+	Username string
+	PasswordHash string
+	LastIP string
+	AuthToken string
+	PreviousHash string
+	Current string
+}