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package validation
import (
"fmt"
"net"
"strings"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/helper/structure"
)
// IntBetween returns a SchemaValidateFunc which tests if the provided value
// is of type int and is between min and max (inclusive)
func IntBetween(min, max int) schema.SchemaValidateFunc {
return func(i interface{}, k string) (s []string, es []error) {
v, ok := i.(int)
if !ok {
es = append(es, fmt.Errorf("expected type of %s to be int", k))
return
}
if v < min || v > max {
es = append(es, fmt.Errorf("expected %s to be in the range (%d - %d), got %d", k, min, max, v))
return
}
return
}
}
// StringInSlice returns a SchemaValidateFunc which tests if the provided value
// is of type string and matches the value of an element in the valid slice
// will test with in lower case if ignoreCase is true
func StringInSlice(valid []string, ignoreCase bool) schema.SchemaValidateFunc {
return func(i interface{}, k string) (s []string, es []error) {
v, ok := i.(string)
if !ok {
es = append(es, fmt.Errorf("expected type of %s to be string", k))
return
}
for _, str := range valid {
if v == str || (ignoreCase && strings.ToLower(v) == strings.ToLower(str)) {
return
}
}
es = append(es, fmt.Errorf("expected %s to be one of %v, got %s", k, valid, v))
return
}
}
// StringLenBetween returns a SchemaValidateFunc which tests if the provided value
// is of type string and has length between min and max (inclusive)
func StringLenBetween(min, max int) schema.SchemaValidateFunc {
return func(i interface{}, k string) (s []string, es []error) {
v, ok := i.(string)
if !ok {
es = append(es, fmt.Errorf("expected type of %s to be string", k))
return
}
if len(v) < min || len(v) > max {
es = append(es, fmt.Errorf("expected length of %s to be in the range (%d - %d), got %s", k, min, max, v))
}
return
}
}
// CIDRNetwork returns a SchemaValidateFunc which tests if the provided value
// is of type string, is in valid CIDR network notation, and has significant bits between min and max (inclusive)
func CIDRNetwork(min, max int) schema.SchemaValidateFunc {
return func(i interface{}, k string) (s []string, es []error) {
v, ok := i.(string)
if !ok {
es = append(es, fmt.Errorf("expected type of %s to be string", k))
return
}
_, ipnet, err := net.ParseCIDR(v)
if err != nil {
es = append(es, fmt.Errorf(
"expected %s to contain a valid CIDR, got: %s with err: %s", k, v, err))
return
}
if ipnet == nil || v != ipnet.String() {
es = append(es, fmt.Errorf(
"expected %s to contain a valid network CIDR, expected %s, got %s",
k, ipnet, v))
}
sigbits, _ := ipnet.Mask.Size()
if sigbits < min || sigbits > max {
es = append(es, fmt.Errorf(
"expected %q to contain a network CIDR with between %d and %d significant bits, got: %d",
k, min, max, sigbits))
}
return
}
}
func ValidateJsonString(v interface{}, k string) (ws []string, errors []error) {
if _, err := structure.NormalizeJsonString(v); err != nil {
errors = append(errors, fmt.Errorf("%q contains an invalid JSON: %s", k, err))
}
return
}
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