246 lines
8.1 KiB
Go
246 lines
8.1 KiB
Go
package db
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// =============================================================================
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// Admin User (ImcUser) Operations
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// These functions manage admin users who can log into the web interface.
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// =============================================================================
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// GetImcUserByUsername looks up an admin user by their username.
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// Returns the user with their associated domain preloaded.
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// username: the username to search for.
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// Returns: the user and any error.
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func (d *DB) GetImcUserByUsername(username string) (*ImcUser, error) {
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var user ImcUser
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// Preload loads the related Domain to avoid N+1 queries.
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// Where + First is the generics API pattern.
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err := d.Where("username = ?", username).Preload("Domain").First(&user).Error
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if err != nil {
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return nil, err // Return nil user and the error
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}
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return &user, nil
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}
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// GetImcUserByID looks up an admin user by their ID.
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// Returns the user with their associated domain preloaded.
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// id: the user's primary key ID.
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// Returns: the user and any error.
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func (d *DB) GetImcUserByID(id uint) (*ImcUser, error) {
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var user ImcUser
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// Where + First looks up by primary key using generics API.
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err := d.Where("id = ?", id).Preload("Domain").First(&user).Error
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if err != nil {
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return nil, err
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}
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return &user, nil
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}
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// CreateImcUser creates a new admin user account.
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// username: the login username (must be unique).
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// passwordHash: the bcrypt hash of the password (NOT the plain password).
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// role: "admin" or "user".
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// domainID: the ID of the domain this user can manage.
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// Returns: the created user and any error.
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func (d *DB) CreateImcUser(username, passwordHash, role string, domainID uint) (*ImcUser, error) {
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user := ImcUser{
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Username: username,
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PasswordHash: passwordHash,
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Role: role,
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DomainID: domainID,
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}
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// Create inserts the record into the database.
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err := d.Create(&user).Error
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if err != nil {
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return nil, err
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}
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return &user, nil
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}
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// UpdateImcUserPassword updates the password hash for a user.
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// id: the user's ID.
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// passwordHash: the new bcrypt hash of the password.
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func (d *DB) UpdateImcUserPassword(id uint, passwordHash string) error {
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// Model specifies which table/struct to update.
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// Updates with map for generics API.
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return d.Model(&ImcUser{}).Updates(map[string]any{"password_hash": passwordHash}).Error
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}
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// DeleteImcUser removes an admin user from the database.
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// id: the user's ID to delete.
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func (d *DB) DeleteImcUser(id uint) error {
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return d.Delete(&ImcUser{}, id).Error // Delete by primary key
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}
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// UpsertAdminUser creates the admin user if it doesn't exist, or updates the password if it does.
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func (d *DB) UpsertAdminUser(username, passwordHash string, domainID uint) error {
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var user ImcUser
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err := d.Where("username = ? AND role = ?", username, "admin").First(&user).Error
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if err == nil {
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return d.Model(&ImcUser{}).Updates(map[string]any{"password_hash": passwordHash}).Error
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}
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_, err = d.CreateImcUser(username, passwordHash, "admin", domainID)
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return err
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}
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// =============================================================================
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// Domain Access Control
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// These functions manage which domains users can access.
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// =============================================================================
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// GetUserAccessibleDomains returns all domains a user can access.
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// Admin users can access all domains; regular users get their primary domain plus any from many-to-many.
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// userID: the ID of the user.
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// isAdmin: whether the user has admin privileges.
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// Returns: a list of accessible domains.
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func (d *DB) GetUserAccessibleDomains(userID uint, isAdmin bool) ([]VirtualDomain, error) {
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// Admins get access to all domains.
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if isAdmin {
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var domains []VirtualDomain
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err := d.Order("name ASC").Find(&domains).Error
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if err != nil {
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return nil, err
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}
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return domains, nil
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}
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// Regular users get their primary domain from imc_users table.
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var user ImcUser
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err := d.Where("id = ?", userID).First(&user).Error
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if err != nil {
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return nil, err
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}
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var primaryDomain VirtualDomain
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err = d.Where("id = ?", user.DomainID).First(&primaryDomain).Error
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if err != nil {
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return nil, err
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}
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// Also get additional domains from many-to-many table.
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var additionalDomains []VirtualDomain
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err = d.Table("imc_users2domains").
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Select("virtual_domains.*").
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Joins("JOIN virtual_domains ON virtual_domains.id = imc_users2domains.domain_id").
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Where("imc_users2domains.user_id = ?", userID).
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Find(&additionalDomains).Error
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if err != nil {
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return nil, err
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}
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// Merge primary domain with additional domains (avoiding duplicates).
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domainMap := make(map[uint]VirtualDomain)
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domainMap[primaryDomain.ID] = primaryDomain
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for _, d := range additionalDomains {
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domainMap[d.ID] = d
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}
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result := make([]VirtualDomain, 0, len(domainMap))
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for _, d := range domainMap {
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result = append(result, d)
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}
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return result, nil
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}
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// CanAccessDomain checks if a user can access a specific domain.
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// userID: the ID of the user.
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// domainName: the name of the domain (e.g., "example.org").
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// isAdmin: whether the user has admin privileges.
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// Returns: true if the user can access the domain, false otherwise.
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func (d *DB) CanAccessDomain(userID uint, domainName string, isAdmin bool) (bool, error) {
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// Admins can access all domains.
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if isAdmin {
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return true, nil
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}
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// Regular users check their primary domain first.
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var user ImcUser
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err := d.Where("id = ?", userID).First(&user).Error
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if err != nil {
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return false, err
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}
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var primaryDomain VirtualDomain
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err = d.Where("id = ? AND name = ?", user.DomainID, domainName).First(&primaryDomain).Error
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if err == nil {
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return true, nil // Primary domain matches
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}
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// Also check the many-to-many table.
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var count int64
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err = d.Table("imc_users2domains").
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Select("COUNT(*)").
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Joins("JOIN virtual_domains ON virtual_domains.id = imc_users2domains.domain_id").
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Where("imc_users2domains.user_id = ? AND virtual_domains.name = ?", userID, domainName).
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Count(&count).Error
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if err != nil {
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return false, err
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}
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return count > 0, nil
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}
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// GetUsersForDomain returns all admin users who can access a specific domain.
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// domainID: the ID of the domain.
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// Returns: a list of users who can access this domain (via primary domain or many-to-many).
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func (d *DB) GetUsersForDomain(domainID uint) ([]ImcUser, error) {
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var users []ImcUser
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// First get users who have this as their primary domain.
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err := d.Where("domain_id = ?", domainID).Find(&users).Error
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if err != nil {
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return nil, err
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}
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// Also get users from the many-to-many table.
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var additionalUsers []ImcUser
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err = d.Table("imc_users2domains").
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Select("imc_users.*").
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Joins("JOIN imc_users ON imc_users.id = imc_users2domains.user_id").
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Where("imc_users2domains.domain_id = ?", domainID).
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Find(&additionalUsers).Error
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if err != nil {
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return nil, err
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}
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// Merge the results (avoiding duplicates).
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userMap := make(map[uint]ImcUser)
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for _, u := range users {
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userMap[u.ID] = u
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}
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for _, u := range additionalUsers {
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if _, exists := userMap[u.ID]; !exists {
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userMap[u.ID] = u
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}
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}
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result := make([]ImcUser, 0, len(userMap))
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for _, u := range userMap {
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result = append(result, u)
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}
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return result, nil
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}
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// AddUserToDomain grants a user access to a domain via many-to-many relationship.
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// userID: the ID of the user.
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// domainID: the ID of the domain.
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func (d *DB) AddUserToDomain(userID, domainID uint) error {
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ud := ImcUserDomain{
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UserID: userID,
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DomainID: domainID,
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}
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return d.Create(&ud).Error
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}
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// RemoveUserFromDomain revokes a user's access to a domain via many-to-many relationship.
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// userID: the ID of the user.
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// domainID: the ID of the domain.
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func (d *DB) RemoveUserFromDomain(userID, domainID uint) error {
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return d.Where("user_id = ? AND domain_id = ?", userID, domainID).Delete(&ImcUserDomain{}).Error
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}
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// IsUserInDomain checks if a user already has access to a domain via many-to-many.
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// userID: the ID of the user.
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// domainID: the ID of the domain.
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// Returns: true if the user already has access, false otherwise.
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func (d *DB) IsUserInDomain(userID, domainID uint) (bool, error) {
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var count int64
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err := d.Model(&ImcUserDomain{}).Where("user_id = ? AND domain_id = ?", userID, domainID).Count(&count).Error
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return count > 0, err
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}
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