chore: import upstream snapshot with attribution

api/http/handler/users/admin_init.go

@@ -0,0 +1,90 @@
+package users
+
+import (
+	"errors"
+	"net/http"
+	"strings"
+
+	portainer "github.com/portainer/portainer/api"
+	"github.com/portainer/portainer/api/http/security/setuptoken"
+	httperror "github.com/portainer/portainer/pkg/libhttp/error"
+	"github.com/portainer/portainer/pkg/libhttp/request"
+	"github.com/portainer/portainer/pkg/libhttp/response"
+)
+
+type adminInitPayload struct {
+	// Username for the admin user
+	Username string `validate:"required" example:"admin"`
+	// Password for the admin user
+	Password string `validate:"required" example:"admin-password"`
+}
+
+func (payload *adminInitPayload) Validate(r *http.Request) error {
+	if len(payload.Username) == 0 || strings.Contains(payload.Username, " ") {
+		return errors.New("Invalid username. Must not contain any whitespace")
+	}
+	if len(payload.Password) == 0 {
+		return errors.New("Invalid password")
+	}
+	return nil
+}
+
+// @id UserAdminInit
+// @summary Initialize administrator account
+// @description Initialize the 'admin' user account.
+// @description **Access policy**: public (requires the X-Setup-Token header on an uninitialized instance unless --no-setup-token is set)
+// @tags users
+// @accept json
+// @produce json
+// @param X-Setup-Token header string false "Setup token (required when instance is uninitialized and --no-setup-token is not set)"
+// @param body body adminInitPayload true "User details"
+// @success 200 {object} portainer.User "Success"
+// @failure 400 "Invalid request"
+// @failure 403 "Access denied - invalid or missing setup token"
+// @failure 409 "Admin user already initialized"
+// @failure 500 "Server error"
+// @router /users/admin/init [post]
+func (handler *Handler) adminInit(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
+	if err := setuptoken.Validate(r, handler.SetupToken); err != nil {
+		return err
+	}
+
+	var payload adminInitPayload
+	err := request.DecodeAndValidateJSONPayload(r, &payload)
+	if err != nil {
+		return httperror.BadRequest("Invalid request payload", err)
+	}
+
+	users, err := handler.DataStore.User().UsersByRole(portainer.AdministratorRole)
+	if err != nil {
+		return httperror.InternalServerError("Unable to retrieve users from the database", err)
+	}
+
+	if len(users) != 0 {
+		return httperror.Conflict("Unable to create administrator user", errAdminAlreadyInitialized)
+	}
+
+	if !handler.passwordStrengthChecker.Check(payload.Password) {
+		return httperror.BadRequest("Password does not meet the requirements", nil)
+	}
+
+	user := &portainer.User{
+		Username: payload.Username,
+		Role:     portainer.AdministratorRole,
+	}
+
+	user.Password, err = handler.CryptoService.Hash(payload.Password)
+	if err != nil {
+		return httperror.InternalServerError("Unable to hash user password", errCryptoHashFailure)
+	}
+
+	err = handler.DataStore.User().Create(user)
+	if err != nil {
+		return httperror.InternalServerError("Unable to persist user inside the database", err)
+	}
+
+	// After the admin user is created, we can notify the endpoint initialization process
+	handler.AdminCreationDone <- struct{}{}
+
+	return response.JSON(w, user)
+}