errors.go

package pufferpanel

import (
	"errors"
	"github.com/pufferpanel/pufferpanel/v2/logging"
	"gopkg.in/go-playground/validator.v9"
	"runtime/debug"
	"strings"
)

var ErrUnknownError = CreateError("unknown error", "ErrUnknownError")
var ErrInvalidCredentials = CreateError("invalid credentials", "ErrInvalidCredentials")
var ErrServiceNotAvailable = CreateError("service not available", "ErrServiceNotAvailable")
var ErrEmailNotConfigured = CreateError("email not configured", "ErrEmailNotConfigured")
var ErrTokenInvalid = CreateError("token is invalid", "ErrTokenInvalid")
var ErrClientNotFound = CreateError("client not found", "ErrClientNotFound")
var ErrUserNotFound = CreateError("user not found", "ErrUserNotFound")
var ErrLoginNotPermitted = CreateError("login not permitted", "ErrLoginNotPermitted")
var ErrInvalidTokenState = CreateError("invalid token state", "ErrInvalidTokenState")
var ErrNoPermission = CreateError("no permission to perform action", "ErrNoPermission")
var ErrServerNotFound = CreateError("server not found", "ErrServerNotFound")
var ErrDatabaseNotAvailable = CreateError("database not available", "ErrDatabaseNotAvailable")
var ErrServerOffline = CreateError("server offline", "ErrServerOffline")
var ErrIllegalFileAccess = CreateError("invalid file access", "ErrIllegalFileAccess")
var ErrServerDisabled = CreateError("server is disabled", "ErrServerDisabled")
var ErrContainerRunning = CreateError("container already running", "ErrContainerRunning")
var ErrImageDownloading = CreateError("image downloading", "ErrImageDownloading")
var ErrProcessRunning = CreateError("process already running", "ErrProcessRunning")
var ErrMissingFactory = CreateError("missing factory", "ErrMissingFactory")
var ErrServerAlreadyExists = CreateError("server already exists", "ErrServerAlreadyExists")
var ErrInvalidUnixTime = CreateError("time provided is not a valid UNIX time", "ErrInvalidUnixTime")
var ErrKeyNotPEM = CreateError("key is not in PEM format", "ErrKeyNotPEM")
var ErrCannotValidateToken = CreateError("could not validate access token", "ErrCannotValidateToken")
var ErrMissingAccessToken = CreateError("access token not provided", "ErrMissingAccessToken")
var ErrNotBearerToken = CreateError("access token must be a Bearer token", "ErrNotBearerToken")
var ErrKeyNotECDSA = CreateError("key is not ECDSA key", "ErrKeyNotECDSA")
var ErrMissingScope = CreateError("missing scope", "ErrMissingScope")

func CreateErrMissingScope(scope Scope) *Error {
	return CreateError(ErrMissingScope.Message, ErrMissingScope.Code).Metadata(map[string]interface{}{"scope": scope})
}

var ErrSettingNotConfigured = func(name string) *Error {
	return CreateError("${setting} is not configured", "ErrSettingNotConfigured").Metadata(map[string]interface{}{"setting": name})
}

var ErrNoTemplate = func(template string) *Error {
	return CreateError("no template with name ${name}", "ErrNoTemplate").Metadata(map[string]interface{}{"template": template})
}

var ErrServiceInvalidProvider = func(service, provider string) *Error {
	return CreateError("{service} does not support ${provider}", "ErrServiceInvalidProvider").Metadata(map[string]interface{}{"service": service, "provider": provider})
}

var ErrFieldRequired = func(fieldName string) *Error {
	return CreateError("${field} is required", "ErrFieldRequired").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldMustBePrintable = func(fieldName string) *Error {
	return CreateError("${field} must be printable ascii characters", "ErrFieldMustBePrintable").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldHasURICharacters = func(fieldName string) *Error {
	return CreateError("${field} must not contain characters which cannot be used in URIs", "ErrFieldHasURICharacters").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldIsInvalidHost = func(fieldName string) *Error {
	return CreateError("${field} must be a valid IP or FQDN", "ErrFieldIsInvalidHost").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldIsInvalidIP = func(fieldName string) *Error {
	return CreateError("${field} must be a valid IP", "ErrFieldIsInvalidIP").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldTooLarge = func(fieldName string, value int64) *Error {
	return CreateError("${field} cannot be larger than ${max}", "ErrFieldTooLarge").Metadata(map[string]interface{}{"field": fieldName, "max": value})
}

var ErrFieldTooSmall = func(fieldName string, value int64) *Error {
	return CreateError("${field} cannot be smaller than ${min}", "ErrFieldTooSmall").Metadata(map[string]interface{}{"field": fieldName, "min": value})
}

var ErrFieldNotBetween = func(fieldName string, min, max int64) *Error {
	return CreateError("${field} must be between ${min} and ${max}", "ErrFieldNotBetween").Metadata(map[string]interface{}{"field": fieldName, "min": min, "max": max})
}

var ErrFieldEqual = func(fieldName1, fieldName2 string) *Error {
	return CreateError("${field1} cannot be equal to ${field2}", "ErrFieldEqual").Metadata(map[string]interface{}{"field1": fieldName1, "field2": fieldName2})
}

var ErrFieldNotEqual = func(fieldName1, fieldName2 string) *Error {
	return CreateError("${field1} is not equal to ${field2}", "ErrFieldNotEqual").Metadata(map[string]interface{}{"field1": fieldName1, "field2": fieldName2})
}

var ErrFieldNotEmail = func(fieldName string) *Error {
	return CreateError("${field} is not a valid email", "ErrFieldNotEmail").Metadata(map[string]interface{}{"field": fieldName})
}

var ErrFieldLength = func(fieldName string, min int, max int) *Error {
	return CreateError("${field} must be between ${min} and ${max} characters", "ErrFieldLength").Metadata(map[string]interface{}{"field": fieldName, "min": min, "max": max})
}

var ErrNodeInvalid = CreateError("node is invalid", "ErrNodeInvalid")

func GenerateValidationMessage(err error) error {
	if errs, ok := err.(validator.ValidationErrors); ok {
		msg := make([]string, 0)
		for _, e := range errs {
			t := e.Field() + ": " + e.ActualTag()
			if e.Param() != "" {
				t += " (" + e.Param() + ")"
			}
			msg = append(msg, t)
		}
		return errors.New(strings.Join(msg, ", "))
	}
	return nil
}

type Error struct {
	Message string                 `json:"msg,omitempty"`
	Code    string                 `json:"code,omitempty"`
	Meta    map[string]interface{} `json:"metadata,omitempty"`
	error
}

func (ge *Error) GetMessage() string {
	return ReplaceTokens(ge.Message, ge.Meta)
}

func (ge *Error) GetCode() string {
	return ge.Code
}

func (ge *Error) Error() string {
	return ge.GetMessage()
}

func (ge *Error) Is(err *Error) bool {
	return ge.GetCode() == err.GetCode()
}

func (ge *Error) Metadata(metadata map[string]interface{}) *Error {
	cp := ge
	cp.Meta = metadata
	return cp
}

func CreateError(msg, code string) *Error {
	return &Error{
		Message: msg,
		Code:    code,
	}
}

func FromError(err error) *Error {
	if err == nil {
		return nil
	}

	if e, ok := err.(*Error); ok {
		return e
	}
	return CreateError(err.Error(), "ErrGeneric")
}

func Recover() {
	if err := recover(); err != nil {
		if _, ok := err.(error); !ok {
			err = errors.New(ToString(err))
		}

		logging.Error().Printf("CRITICAL ERROR: \n%+v\n%s", err, debug.Stack())
	}
}