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subscriptions.go
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subscriptions.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package webhookvalidator
import (
"context"
"fmt"
"github.com/hashicorp/terraform-plugin-framework-validators/helpers/validatordiag"
"github.com/hashicorp/terraform-plugin-framework/attr"
"github.com/hashicorp/terraform-plugin-framework/schema/validator"
"github.com/hashicorp/terraform-plugin-framework/types"
"github.com/hashicorp/terraform-plugin-framework/types/basetypes"
)
var _ validator.List = uniqueSubscriptionsValidator{}
// uniqueSubscriptionsValidator implements the validator.
type uniqueSubscriptionsValidator struct{}
// UniqueSubscriptions returns a validator which ensures that the configured subscriptions are unique
func UniqueSubscriptions() validator.List {
return uniqueSubscriptionsValidator{}
}
// Description returns the plaintext description of the validator.
func (v uniqueSubscriptionsValidator) Description(_ context.Context) string {
return "subscriptions must be unique"
}
// MarkdownDescription returns the Markdown description of the validator.
func (v uniqueSubscriptionsValidator) MarkdownDescription(ctx context.Context) string {
return v.Description(ctx)
}
// ValidateList implements the validation logic.
func (v uniqueSubscriptionsValidator) ValidateList(ctx context.Context, req validator.ListRequest, resp *validator.ListResponse) {
if req.ConfigValue.IsNull() || req.ConfigValue.IsUnknown() {
return
}
subscriptions := req.ConfigValue.Elements()
resourceIDMap := map[string]struct{}{}
for _, subscription := range subscriptions {
subscriptionValuable, ok := subscription.(basetypes.ObjectValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription events",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares an Object value validator, however its values do not implement types.ObjectType interface for custom Object types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", SubscriptionType)+
fmt.Sprintf("Element Value Type: %T\n", subscription),
)
return
}
eventsValue, diags := subscriptionValuable.ToObjectValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
elements := eventsValue.Attributes()
for att, element := range elements {
if att == "events" {
validateEvents(ctx, element, req, resp)
continue
}
elementValuable, ok := element.(basetypes.StringValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription resource id",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares a String values validator, however its values do not implement types.StringType or the types.StringTypable interface for custom String types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", types.StringType)+
fmt.Sprintf("Element Value Type: %T\n", subscription),
)
return
}
elementValue, diags := elementValuable.ToStringValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
resourceID := elementValue.ValueString()
if _, ok := resourceIDMap[resourceID]; ok {
resp.Diagnostics.Append(validatordiag.InvalidAttributeValueMatchDiagnostic(
req.Path,
"duplicated subscription resource_id found. "+
"Only one subscription per resource_id is allowed",
elementValue.ValueString(),
))
}
resourceIDMap[resourceID] = struct{}{}
}
}
}
func validateEvents(ctx context.Context, events attr.Value, req validator.ListRequest, resp *validator.ListResponse) {
eventsValuable, ok := events.(basetypes.ListValue)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription events",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares a List value validator, however its values do not implement types.ListType interface for custom List types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", EventsType)+
fmt.Sprintf("Element Value Type: %T\n", events),
)
return
}
elements := eventsValuable.Elements()
sourceMap := map[string]struct{}{}
for _, event := range elements {
eventValuable, ok := event.(basetypes.ObjectValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription events",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares an Object value validator, however its values do not implement types.ObjectType interface for custom Object types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", EventType)+
fmt.Sprintf("Element Value Type: %T\n", event),
)
return
}
eventsValue, diags := eventValuable.ToObjectValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
eventElements := eventsValue.Attributes()
for att, element := range eventElements {
if att == "actions" {
validateActions(ctx, element, req, resp)
continue
}
elementValuable, ok := element.(basetypes.StringValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription event action",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares a String values validator, however its values do not implement types.StringType or the types.StringTypable interface for custom String types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", types.StringType)+
fmt.Sprintf("Element Value Type: %T\n", element),
)
}
elementValue, diags := elementValuable.ToStringValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
source := elementValue.ValueString()
if _, ok := sourceMap[source]; ok {
resp.Diagnostics.Append(validatordiag.InvalidAttributeValueMatchDiagnostic(
req.Path,
"duplicated subscription event source found. "+
"The event source should be unique per subscription",
elementValue.ValueString(),
))
}
sourceMap[source] = struct{}{}
}
}
}
func validateActions(ctx context.Context, actions attr.Value, req validator.ListRequest, resp *validator.ListResponse) {
actionsValuable, ok := actions.(basetypes.ListValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription events",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares a List value validator, however its values do not implement types.ListType interface for custom List types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", ActionType)+
fmt.Sprintf("Element Value Type: %T\n", actions),
)
}
actionsValue, diags := actionsValuable.ToListValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
elements := actionsValue.Elements()
var wildcardFound bool
wildcard := "*"
for _, element := range elements {
elementValuable, ok := element.(basetypes.StringValuable)
if !ok {
resp.Diagnostics.AddAttributeError(
req.Path,
"Invalid subscription event action",
"While performing schema-based validation, an unexpected error occurred. "+
"The attribute declares a String values validator, however its values do not implement types.StringType or the types.StringTypable interface for custom String types. "+
"This is likely an issue with terraform-plugin-framework and should be reported to the provider developers.\n\n"+
fmt.Sprintf("Path: %s\n", req.Path.String())+
fmt.Sprintf("Element Type: %T\n", actionsValue.ElementType(ctx))+
fmt.Sprintf("Element Value Type: %T\n", element),
)
return
}
elementValue, diags := elementValuable.ToStringValue(ctx)
resp.Diagnostics.Append(diags...)
// Only return early if the new diagnostics indicate an issue since
// it likely will be the same for all elements.
if diags.HasError() {
return
}
action := elementValue.ValueString()
if (action != wildcard && wildcardFound) ||
(action == wildcard && len(elements) > 1) {
resp.Diagnostics.Append(validatordiag.InvalidAttributeValueMatchDiagnostic(
req.Path,
"invalid subscription event actions found."+
"The wildcard '*' subscribes to all event actions and should be set alone",
req.ConfigValue.String(),
))
return
}
if action == wildcard {
wildcardFound = true
}
}
}
var ActionType = types.ListType{ElemType: types.StringType}
var EventType = types.ObjectType{
AttrTypes: map[string]attr.Type{
"actions": ActionType,
"source": types.StringType,
},
}
var EventsType = types.ListType{
ElemType: EventType,
}
var SubscriptionType = types.ObjectType{
AttrTypes: map[string]attr.Type{
"resource_id": types.StringType,
"events": EventsType,
},
}