Merge pull request #298 from pace/add-helpers

http,runtime: Add useful default sanitizers

Author: daemonfire300

go.mod

@@ -33,6 +33,7 @@ require (
 	github.com/prometheus/client_golang v1.7.1
 	github.com/rs/xid v1.2.1
 	github.com/rs/zerolog v1.17.2
+	github.com/satori/go.uuid v1.2.0
 	github.com/shopspring/decimal v0.0.0-20200105231215-408a2507e114
 	github.com/sony/gobreaker v0.4.1
 	github.com/spf13/cobra v1.2.1

go.sum

@@ -678,6 +678,8 @@ github.com/ryanrolds/sqlclosecheck v0.3.0/go.mod h1:1gREqxyTGR3lVtpngyFo3hZAgk0K
 github.com/ryanuber/columnize v0.0.0-20160712163229-9b3edd62028f/go.mod h1:sm1tb6uqfes/u+d4ooFouqFdy9/2g9QGwK3SQygK0Ts=
 github.com/sanposhiho/wastedassign/v2 v2.0.6 h1:+6/hQIHKNJAUixEj6EmOngGIisyeI+T3335lYTyxRoA=
 github.com/sanposhiho/wastedassign/v2 v2.0.6/go.mod h1:KyZ0MWTwxxBmfwn33zh3k1dmsbF2ud9pAAGfoLfjhtI=
+github.com/satori/go.uuid v1.2.0 h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=
+github.com/satori/go.uuid v1.2.0/go.mod h1:dA0hQrYB0VpLJoorglMZABFdXlWrHn1NEOzdhQKdks0=
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/securego/gosec/v2 v2.8.1 h1:Tyy/nsH39TYCOkqf5HAgRE+7B5D8sHDwPdXRgFWokh8=
 github.com/securego/gosec/v2 v2.8.1/go.mod h1:pUmsq6+VyFEElJMUX+QB3p3LWNHXg1R3xh2ssVJPs8Q=

http/jsonapi/runtime/standart_params.go http/jsonapi/runtime/standard_params.gohttp/jsonapi/runtime/standart_params.go renamed to http/jsonapi/runtime/standard_params.go

@@ -0,0 +1,94 @@
+// Copyright © 2021 by PACE Telematics GmbH. All rights reserved.
+// Created at 2021/02/04 by Julius Foitzik
+
+package runtime
+
+import (
+	"errors"
+	"fmt"
+	"strconv"
+
+	uuid "github.com/satori/go.uuid"
+	"github.com/shopspring/decimal"
+
+	"github.com/pace/bricks/pkg/isotime"
+)
+
+var _ ValueSanitizer = (*datetimeSanitizer)(nil)
+var _ ValueSanitizer = (*intSanitizer)(nil)
+var _ ValueSanitizer = (*decimalSanitizer)(nil)
+var _ ValueSanitizer = (*noopSanitizer)(nil)
+var _ ValueSanitizer = (*uuidSanitizer)(nil)
+var _ ValueSanitizer = (*composableAndFieldRestrictedSanitizer)(nil)
+
+var (
+	ErrInvalidFieldname = errors.New("invalid fieldName, not registered in sanitizer")
+)
+
+type datetimeSanitizer struct{}
+
+func (d datetimeSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	t, err := isotime.ParseISO8601(value)
+	if err != nil {
+		return nil, err
+	}
+	return t, nil
+}
+
+type intSanitizer struct{}
+
+func (i intSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	return strconv.Atoi(value)
+}
+
+type decimalSanitizer struct{}
+
+func (d decimalSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	return decimal.NewFromString(value)
+}
+
+type noopSanitizer struct{}
+
+func (n noopSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	return value, nil
+}
+
+type uuidSanitizer struct{}
+
+func (u uuidSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	if _, err := uuid.FromString(value); err != nil {
+		return nil, err
+	}
+	return value, nil
+}
+
+type composableAndFieldRestrictedSanitizer map[string]ValueSanitizer
+
+func (c composableAndFieldRestrictedSanitizer) SanitizeValue(fieldName string, value string) (interface{}, error) {
+	san, found := c[fieldName]
+	if !found {
+		return nil, fmt.Errorf("%w: %v", ErrInvalidFieldname, fieldName)
+	}
+	return san.SanitizeValue(fieldName, value)
+}
+
+func NewComposableSanitizer(mapping map[string]ValueSanitizer) ValueSanitizer {
+	return composableAndFieldRestrictedSanitizer(mapping)
+}
+
+func NewDatetimeSanitizer() ValueSanitizer {
+	return &datetimeSanitizer{}
+}
+
+func NewIntSanitizer() ValueSanitizer {
+	return &intSanitizer{}
+}
+func NewNoopSanitizer() ValueSanitizer {
+	return &noopSanitizer{}
+}
+func NewUUIDSanitizer() ValueSanitizer {
+	return &uuidSanitizer{}
+}
+func NewDecimalSanitizer() ValueSanitizer {
+	return &decimalSanitizer{}
+}