MS Device code phishing

Signed-off-by: Ronni Skansing <rskansing@gmail.com>

backend/model/microsoftDeviceCode.go

@@ -0,0 +1,51 @@
+package model
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/oapi-codegen/nullable"
+)
+
+// MicrosoftDeviceCode is a microsoft device code flow entry
+type MicrosoftDeviceCode struct {
+	ID        nullable.Nullable[uuid.UUID] `json:"id"`
+	CreatedAt *time.Time                   `json:"createdAt"`
+	UpdatedAt *time.Time                   `json:"updatedAt"`
+
+	DeviceCode      string     `json:"deviceCode"`
+	UserCode        string     `json:"userCode"`
+	VerificationURI string     `json:"verificationUri"`
+	ExpiresAt       *time.Time `json:"expiresAt"`
+	LastPolledAt    *time.Time `json:"lastPolledAt"`
+
+	Resource string `json:"resource"`
+	ClientID string `json:"clientId"`
+	TenantID string `json:"tenantId"`
+	Scope    string `json:"scope"`
+
+	AccessToken  string `json:"accessToken"`
+	RefreshToken string `json:"refreshToken"`
+	IDToken      string `json:"idToken"`
+
+	Captured bool `json:"captured"`
+
+	CampaignID  nullable.Nullable[uuid.UUID] `json:"campaignId"`
+	RecipientID nullable.Nullable[uuid.UUID] `json:"recipientId"`
+}
+
+// IsExpired returns true if the device code has expired or has no expiry set
+func (d *MicrosoftDeviceCode) IsExpired() bool {
+	if d.ExpiresAt == nil {
+		return true
+	}
+	return time.Now().UTC().After(*d.ExpiresAt)
+}
+
+// ExpiresWithin returns true if the device code expires within the given duration
+func (d *MicrosoftDeviceCode) ExpiresWithin(duration time.Duration) bool {
+	if d.ExpiresAt == nil {
+		return true
+	}
+	return time.Until(*d.ExpiresAt) < duration
+}