package aws import ( "fmt" "net" "regexp" "time" "github.com/aws/aws-sdk-go/service/s3" "github.com/hashicorp/terraform/helper/schema" ) func validateRdsId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if !regexp.MustCompile(`^[0-9a-z-]+$`).MatchString(value) { errors = append(errors, fmt.Errorf( "only lowercase alphanumeric characters and hyphens allowed in %q", k)) } if !regexp.MustCompile(`^[a-z]`).MatchString(value) { errors = append(errors, fmt.Errorf( "first character of %q must be a letter", k)) } if regexp.MustCompile(`--`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot contain two consecutive hyphens", k)) } if regexp.MustCompile(`-$`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot end with a hyphen", k)) } return } func validateElastiCacheClusterId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if (len(value) < 1) || (len(value) > 20) { errors = append(errors, fmt.Errorf( "%q must contain from 1 to 20 alphanumeric characters or hyphens", k)) } if !regexp.MustCompile(`^[0-9a-z-]+$`).MatchString(value) { errors = append(errors, fmt.Errorf( "only lowercase alphanumeric characters and hyphens allowed in %q", k)) } if !regexp.MustCompile(`^[a-z]`).MatchString(value) { errors = append(errors, fmt.Errorf( "first character of %q must be a letter", k)) } if regexp.MustCompile(`--`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot contain two consecutive hyphens", k)) } if regexp.MustCompile(`-$`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot end with a hyphen", k)) } return } func validateASGScheduleTimestamp(v interface{}, k string) (ws []string, errors []error) { value := v.(string) _, err := time.Parse(awsAutoscalingScheduleTimeLayout, value) if err != nil { errors = append(errors, fmt.Errorf( "%q cannot be parsed as iso8601 Timestamp Format", value)) } return } // validateTagFilters confirms the "value" component of a tag filter is one of // AWS's three allowed types. func validateTagFilters(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if value != "KEY_ONLY" && value != "VALUE_ONLY" && value != "KEY_AND_VALUE" { errors = append(errors, fmt.Errorf( "%q must be one of \"KEY_ONLY\", \"VALUE_ONLY\", or \"KEY_AND_VALUE\"", k)) } return } func validateDbParamGroupName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if !regexp.MustCompile(`^[0-9a-z-]+$`).MatchString(value) { errors = append(errors, fmt.Errorf( "only lowercase alphanumeric characters and hyphens allowed in %q", k)) } if !regexp.MustCompile(`^[a-z]`).MatchString(value) { errors = append(errors, fmt.Errorf( "first character of %q must be a letter", k)) } if regexp.MustCompile(`--`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot contain two consecutive hyphens", k)) } if regexp.MustCompile(`-$`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot end with a hyphen", k)) } if len(value) > 255 { errors = append(errors, fmt.Errorf( "%q cannot be greater than 255 characters", k)) } return } func validateStreamViewType(v interface{}, k string) (ws []string, errors []error) { value := v.(string) viewTypes := map[string]bool{ "KEYS_ONLY": true, "NEW_IMAGE": true, "OLD_IMAGE": true, "NEW_AND_OLD_IMAGES": true, } if !viewTypes[value] { errors = append(errors, fmt.Errorf("%q be a valid DynamoDB StreamViewType", k)) } return } func validateElbName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if !regexp.MustCompile(`^[0-9A-Za-z-]+$`).MatchString(value) { errors = append(errors, fmt.Errorf( "only alphanumeric characters and hyphens allowed in %q: %q", k, value)) } if len(value) > 32 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 32 characters: %q", k, value)) } if regexp.MustCompile(`^-`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot begin with a hyphen: %q", k, value)) } if regexp.MustCompile(`-$`).MatchString(value) { errors = append(errors, fmt.Errorf( "%q cannot end with a hyphen: %q", k, value)) } return } func validateEcrRepositoryName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) < 2 { errors = append(errors, fmt.Errorf( "%q must be at least 2 characters long: %q", k, value)) } if len(value) > 256 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 256 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonECR/latest/APIReference/API_CreateRepository.html pattern := `^(?:[a-z0-9]+(?:[._-][a-z0-9]+)*/)*[a-z0-9]+(?:[._-][a-z0-9]+)*$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateCloudWatchEventRuleName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 64 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 64 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonCloudWatchEvents/latest/APIReference/API_PutRule.html pattern := `^[\.\-_A-Za-z0-9]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateMaxLength(length int) schema.SchemaValidateFunc { return func(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > length { errors = append(errors, fmt.Errorf( "%q cannot be longer than %d characters: %q", k, length, value)) } return } } func validateIntegerInRange(min, max int) schema.SchemaValidateFunc { return func(v interface{}, k string) (ws []string, errors []error) { value := v.(int) if value < min { errors = append(errors, fmt.Errorf( "%q cannot be lower than %d: %d", k, min, value)) } if value > max { errors = append(errors, fmt.Errorf( "%q cannot be higher than %d: %d", k, max, value)) } return } } func validateCloudWatchEventTargetId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 64 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 64 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonCloudWatchEvents/latest/APIReference/API_Target.html pattern := `^[\.\-_A-Za-z0-9]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateLambdaFunctionName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 140 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 140 characters: %q", k, value)) } // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^(arn:aws:lambda:)?([a-z]{2}-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateLambdaQualifier(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 128 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 128 characters: %q", k, value)) } // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^[a-zA-Z0-9$_]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateLambdaPermissionAction(v interface{}, k string) (ws []string, errors []error) { value := v.(string) // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^(lambda:[*]|lambda:[a-zA-Z]+|[*])$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't comply with restrictions (%q): %q", k, pattern, value)) } return } func validateAwsAccountId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^\d{12}$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't look like AWS Account ID (exactly 12 digits): %q", k, value)) } return } func validateArn(v interface{}, k string) (ws []string, errors []error) { value := v.(string) // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^arn:aws:([a-zA-Z0-9\-])+:([a-z]{2}-[a-z]+-\d{1})?:(\d{12})?:(.*)$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't look like a valid ARN (%q): %q", k, pattern, value)) } return } func validatePolicyStatementId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 100 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 100 characters: %q", k, value)) } // http://docs.aws.amazon.com/lambda/latest/dg/API_AddPermission.html pattern := `^[a-zA-Z0-9-_]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q doesn't look like a valid statement ID (%q): %q", k, pattern, value)) } return } // validateCIDRNetworkAddress ensures that the string value is a valid CIDR that // represents a network address - it adds an error otherwise func validateCIDRNetworkAddress(v interface{}, k string) (ws []string, errors []error) { value := v.(string) _, ipnet, err := net.ParseCIDR(value) if err != nil { errors = append(errors, fmt.Errorf( "%q must contain a valid CIDR, got error parsing: %s", k, err)) return } if ipnet == nil || value != ipnet.String() { errors = append(errors, fmt.Errorf( "%q must contain a valid network CIDR, expected %q, got %q", k, ipnet, value)) } return } func validateHTTPMethod(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if value != "GET" && value != "HEAD" && value != "OPTIONS" && value != "PUT" && value != "POST" && value != "PATCH" && value != "DELETE" { errors = append(errors, fmt.Errorf( "%q must be one of 'GET', 'HEAD', 'OPTIONS', 'PUT', 'POST', 'PATCH', 'DELETE'", k)) } return } func validateLogMetricFilterName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 512 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 512 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_PutMetricFilter.html pattern := `^[^:*]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q isn't a valid log metric name (must not contain colon nor asterisk): %q", k, value)) } return } func validateLogMetricFilterTransformationName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 255 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 255 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_MetricTransformation.html pattern := `^[^:*$]*$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q isn't a valid log metric transformation name (must not contain"+ " colon, asterisk nor dollar sign): %q", k, value)) } return } func validateLogGroupName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 512 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 512 characters: %q", k, value)) } // http://docs.aws.amazon.com/AmazonCloudWatchLogs/latest/APIReference/API_CreateLogGroup.html pattern := `^[\.\-_/#A-Za-z0-9]+$` if !regexp.MustCompile(pattern).MatchString(value) { errors = append(errors, fmt.Errorf( "%q isn't a valid log group name (alphanumeric characters, underscores,"+ " hyphens, slashes, hash signs and dots are allowed): %q", k, value)) } return } func validateS3BucketLifecycleTimestamp(v interface{}, k string) (ws []string, errors []error) { value := v.(string) _, err := time.Parse(time.RFC3339, fmt.Sprintf("%sT00:00:00Z", value)) if err != nil { errors = append(errors, fmt.Errorf( "%q cannot be parsed as RFC3339 Timestamp Format", value)) } return } func validateS3BucketLifecycleStorageClass(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if value != s3.TransitionStorageClassStandardIa && value != s3.TransitionStorageClassGlacier { errors = append(errors, fmt.Errorf( "%q must be one of '%q', '%q'", k, s3.TransitionStorageClassStandardIa, s3.TransitionStorageClassGlacier)) } return } func validateS3BucketLifecycleRuleId(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if len(value) > 255 { errors = append(errors, fmt.Errorf( "%q cannot exceed 255 characters", k)) } return } func validateDbEventSubscriptionName(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if !regexp.MustCompile(`^[0-9A-Za-z-]+$`).MatchString(value) { errors = append(errors, fmt.Errorf( "only alphanumeric characters and hyphens allowed in %q", k)) } if len(value) > 255 { errors = append(errors, fmt.Errorf( "%q cannot be longer than 255 characters", k)) } return } func validateApiGatewayIntegrationPassthroughBehavior(v interface{}, k string) (ws []string, errors []error) { value := v.(string) if value != "WHEN_NO_MATCH" && value != "WHEN_NO_TEMPLATES" && value != "NEVER" { errors = append(errors, fmt.Errorf( "%q must be one of 'WHEN_NO_MATCH', 'WHEN_NO_TEMPLATES', 'NEVER'", k)) } return } func validateJsonString(v interface{}, k string) (ws []string, errors []error) { if _, err := normalizeJsonString(v); err != nil { errors = append(errors, fmt.Errorf("%q contains an invalid JSON: %s", k, err)) } return }