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validation.go
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validation.go
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package google
import (
"fmt"
"net"
"regexp"
"strconv"
"strings"
"github.com/hashicorp/terraform/helper/schema"
"github.com/hashicorp/terraform/helper/validation"
)
const (
// Copied from the official Google Cloud auto-generated client.
ProjectRegex = "(?:(?:[-a-z0-9]{1,63}\\.)*(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?):)?(?:[0-9]{1,19}|(?:[a-z0-9](?:[-a-z0-9]{0,61}[a-z0-9])?))"
RegionRegex = "[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?"
SubnetworkRegex = "[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?"
SubnetworkLinkRegex = "projects/(" + ProjectRegex + ")/regions/(" + RegionRegex + ")/subnetworks/(" + SubnetworkRegex + ")$"
RFC1035NameTemplate = "[a-z](?:[-a-z0-9]{%d,%d}[a-z0-9])"
CloudIoTIdRegex = "^[a-zA-Z][-a-zA-Z0-9._+~%]{2,254}$"
// Format of default Compute service accounts created by Google
// ${PROJECT_ID}-compute@developer.gserviceaccount.com where PROJECT_ID is an int64 (max 20 digits)
ComputeServiceAccountNameRegex = "[0-9]{1,20}-compute@developer.gserviceaccount.com"
)
var (
// Service account name must have a length between 6 and 30.
// The first and last characters have different restrictions, than
// the middle characters. The middle characters length must be between
// 4 and 28 since the first and last character are excluded.
ServiceAccountNameRegex = fmt.Sprintf(RFC1035NameTemplate, 4, 28)
ServiceAccountLinkRegexPrefix = "projects/" + ProjectRegex + "/serviceAccounts/"
PossibleServiceAccountNames = []string{
AppEngineServiceAccountNameRegex,
ComputeServiceAccountNameRegex,
CreatedServiceAccountNameRegex,
}
ServiceAccountLinkRegex = ServiceAccountLinkRegexPrefix + "(" + strings.Join(PossibleServiceAccountNames, "|") + ")"
ServiceAccountKeyNameRegex = ServiceAccountLinkRegexPrefix + "(.+)/keys/(.+)"
// Format of service accounts created through the API
CreatedServiceAccountNameRegex = fmt.Sprintf(RFC1035NameTemplate, 4, 28) + "@" + ProjectNameInDNSFormRegex + "\\.iam\\.gserviceaccount\\.com$"
ProjectNameInDNSFormRegex = "[-a-z0-9\\.]{1,63}"
// Format of default App Engine service accounts created by Google
AppEngineServiceAccountNameRegex = ProjectRegex + "@appspot.gserviceaccount.com"
ProjectNameRegex = "^[A-Za-z0-9-'\"\\s!]{4,30}$"
)
var rfc1918Networks = []string{
"10.0.0.0/8",
"172.16.0.0/12",
"192.168.0.0/16",
}
func validateGCPName(v interface{}, k string) (ws []string, errors []error) {
re := `^(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)$`
return validateRegexp(re)(v, k)
}
func validateRegexp(re string) schema.SchemaValidateFunc {
return func(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
if !regexp.MustCompile(re).MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q (%q) doesn't match regexp %q", k, value, re))
}
return
}
}
func validateRFC1918Network(min, max int) schema.SchemaValidateFunc {
return func(i interface{}, k string) (s []string, es []error) {
s, es = validation.CIDRNetwork(min, max)(i, k)
if len(es) > 0 {
return
}
v, _ := i.(string)
ip, _, _ := net.ParseCIDR(v)
for _, c := range rfc1918Networks {
if _, ipnet, _ := net.ParseCIDR(c); ipnet.Contains(ip) {
return
}
}
es = append(es, fmt.Errorf("expected %q to be an RFC1918-compliant CIDR, got: %s", k, v))
return
}
}
func validateRFC3339Time(v interface{}, k string) (warnings []string, errors []error) {
time := v.(string)
if len(time) != 5 || time[2] != ':' {
errors = append(errors, fmt.Errorf("%q (%q) must be in the format HH:mm (RFC3399)", k, time))
return
}
if hour, err := strconv.ParseUint(time[:2], 10, 0); err != nil || hour > 23 {
errors = append(errors, fmt.Errorf("%q (%q) does not contain a valid hour (00-23)", k, time))
return
}
if min, err := strconv.ParseUint(time[3:], 10, 0); err != nil || min > 59 {
errors = append(errors, fmt.Errorf("%q (%q) does not contain a valid minute (00-59)", k, time))
return
}
return
}
func validateRFC1035Name(min, max int) schema.SchemaValidateFunc {
if min < 2 || max < min {
return func(i interface{}, k string) (s []string, errors []error) {
if min < 2 {
errors = append(errors, fmt.Errorf("min must be at least 2. Got: %d", min))
}
if max < min {
errors = append(errors, fmt.Errorf("max must greater than min. Got [%d, %d]", min, max))
}
return
}
}
return validateRegexp(fmt.Sprintf("^"+RFC1035NameTemplate+"$", min-2, max-2))
}
func validateIpCidrRange(v interface{}, k string) (warnings []string, errors []error) {
_, _, err := net.ParseCIDR(v.(string))
if err != nil {
errors = append(errors, fmt.Errorf("%q is not a valid IP CIDR range: %s", k, err))
}
return
}
func validateCloudIoTID(v interface{}, k string) (warnings []string, errors []error) {
value := v.(string)
if strings.HasPrefix(value, "goog") {
errors = append(errors, fmt.Errorf(
"%q (%q) can not start with \"goog\"", k, value))
}
if !regexp.MustCompile(CloudIoTIdRegex).MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q (%q) doesn't match regexp %q", k, value, CloudIoTIdRegex))
}
return
}
func orEmpty(f schema.SchemaValidateFunc) schema.SchemaValidateFunc {
return func(i interface{}, k string) ([]string, []error) {
v, ok := i.(string)
if ok && v == "" {
return nil, nil
}
return f(i, k)
}
}
func validateProjectID() schema.SchemaValidateFunc {
return func(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
if !regexp.MustCompile("^" + ProjectRegex + "$").MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q project_id must be 6 to 30 with lowercase letters, digits, hyphens and start with a letter. Trailing hyphens are prohibited.", value))
}
return
}
}
func validateProjectName() schema.SchemaValidateFunc {
return func(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
if !regexp.MustCompile(ProjectNameRegex).MatchString(value) {
errors = append(errors, fmt.Errorf(
"%q name must be 4 to 30 characters with lowercase and uppercase letters, numbers, hyphen, single-quote, double-quote, space, and exclamation point.", value))
}
return
}
}