feat(auth): Add /token endpoint to request a access token

app/repositories/applications.go

@@ -7,9 +7,9 @@ import (
 	"git.secnex.io/secnex/oauth2-api/models"
 )
 
-func GetApplicationByClientID(clientID string) (*models.Application, error) {
+func GetApplicationByID(applicationID string) (*models.Application, error) {
 	var application *models.Application
-	if err := database.DB.Where("client_id = ? AND expires_at > ?", clientID, time.Now().UTC()).First(&application).Error; err != nil {
+	if err := database.DB.Where("id = ? AND expires_at > ?", applicationID, time.Now().UTC()).First(&application).Error; err != nil {
 		return nil, err
 	}
 	return application, nil

app/repositories/authorization.go

@@ -1,10 +1,24 @@
 package repositories
 
 import (
+	"time"
+
 	"git.secnex.io/secnex/oauth2-api/database"
 	"git.secnex.io/secnex/oauth2-api/models"
 )
 
+func GetAuthorizationByID(id string) (*models.Authorization, error) {
+	var authorization *models.Authorization
+	if err := database.DB.Where("id = ? AND expires_at > ?", id, time.Now().UTC()).First(&authorization).Error; err != nil {
+		return nil, err
+	}
+	return authorization, nil
+}
+
 func CreateAuthorization(authorization *models.Authorization) error {
 	return database.DB.Create(authorization).Error
 }
+
+func ExpireAuthorization(authorizationID string) error {
+	return database.DB.Model(&models.Authorization{}).Where("id = ?", authorizationID).Update("expires_at", time.Now().UTC()).Error
+}

app/repositories/session.go

@@ -0,0 +1,62 @@
+package repositories
+
+import (
+	"encoding/json"
+
+	"git.secnex.io/secnex/masterlog"
+	"git.secnex.io/secnex/oauth2-api/cache"
+	"github.com/google/uuid"
+)
+
+type SessionDetails struct {
+	UserID    uuid.UUID `json:"user_id"`
+	Username  string    `json:"username"`
+	Email     string    `json:"email"`
+	FirstName string    `json:"first_name"`
+	LastName  string    `json:"last_name"`
+}
+
+func GetSessionCache(sessionID string) *SessionDetails {
+	masterlog.Debug("Retrieving session from cache", map[string]interface{}{"session_id": sessionID})
+	if cache.Cache.Client == nil {
+		masterlog.Debug("Redis client not initialized", map[string]interface{}{"session_id": sessionID})
+		return nil
+	}
+
+	res := cache.Cache.Client.Do(cache.Cache.Context, cache.Cache.Client.B().Get().Key(sessionID).Build())
+	if res.Error() != nil {
+		masterlog.Debug("Failed to get session from cache", map[string]interface{}{"error": res.Error(), "session_id": sessionID})
+		return nil
+	}
+
+	rawStr := res.String()
+	if rawStr == "" {
+		masterlog.Debug("Session not found in cache", map[string]interface{}{"session_id": sessionID})
+		return nil
+	}
+
+	// Parse the valkey response structure to extract the actual JSON string
+	var valkeyResponse struct {
+		Message struct {
+			Value string `json:"Value"`
+			Type  string `json:"Type"`
+		} `json:"Message"`
+	}
+	if err := json.Unmarshal([]byte(rawStr), &valkeyResponse); err != nil {
+		// If it's not the wrapped format, use it directly
+		masterlog.Debug("Cache response not in wrapped format, using directly", map[string]interface{}{"session_id": sessionID})
+	} else {
+		// Extract the actual JSON string from Message.Value
+		rawStr = valkeyResponse.Message.Value
+		masterlog.Debug("Extracted JSON from cache response", map[string]interface{}{"session_id": sessionID})
+	}
+
+	var sessionDetails SessionDetails
+	if err := json.Unmarshal([]byte(rawStr), &sessionDetails); err != nil {
+		masterlog.Debug("Failed to unmarshal session details", map[string]interface{}{"error": err.Error(), "session_id": sessionID})
+		return nil
+	}
+
+	masterlog.Debug("Session retrieved from cache", map[string]interface{}{"session_id": sessionID, "user_id": sessionDetails.UserID})
+	return &sessionDetails
+}

app/repositories/token.go

@@ -0,0 +1,10 @@
+package repositories
+
+import (
+	"git.secnex.io/secnex/oauth2-api/database"
+	"git.secnex.io/secnex/oauth2-api/models"
+)
+
+func CreateToken(token *models.Token) error {
+	return database.DB.Create(token).Error
+}

app/repositories/users.go

@@ -6,6 +6,14 @@ import (
 	"git.secnex.io/secnex/oauth2-api/models"
 )
 
+func GetUserByID(id string) (*models.User, error) {
+	var user *models.User
+	if err := database.DB.Where("id = ?", id).First(&user).Error; err != nil {
+		return nil, err
+	}
+	return user, nil
+}
+
 func GetUserByUsername(username string) (*models.User, error) {
 	var user *models.User
 	if err := database.DB.Where("username = ?", username).First(&user).Error; err != nil {