feat(settings): Adding settings object permission client

The main goal of this commit is to add the client code for the settings object permission handling API.
This code can then be used by both, the dynatrace-configuration-as-code project and the Terraform provider.

Author: d0weinberger

clients/settings/permissions/errors.go

@@ -0,0 +1,58 @@
+// @license
+// Copyright 2025 Dynatrace LLC
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package permissions
+
+import (
+	"errors"
+	"fmt"
+)
+
+var (
+	ErrorMissingObjectID     = errors.New("objectID cannot be empty")
+	ErrorMissingAccessorID   = errors.New("accessorID cannot be empty")
+	ErrorMissingAccessorType = errors.New("accessorType cannot be empty")
+)
+
+type ErrorPermissionGet struct {
+	Err error
+}
+
+func (e ErrorPermissionGet) Error() string {
+	return fmt.Sprintf("failed to get permission(s): %v", e.Err)
+}
+
+type ErrorPermissionCreate struct {
+	Err error
+}
+
+func (e ErrorPermissionCreate) Error() string {
+	return fmt.Sprintf("failed to create permission: %v", e.Err)
+}
+
+type ErrorPermissionUpdate struct {
+	Err error
+}
+
+func (e ErrorPermissionUpdate) Error() string {
+	return fmt.Sprintf("failed to update permission: %v", e.Err)
+}
+
+type ErrorPermissionDelete struct {
+	Err error
+}
+
+func (e ErrorPermissionDelete) Error() string {
+	return fmt.Sprintf("failed to delete permission object: %v", e.Err)
+}

clients/settings/permissions/permissions.go

@@ -0,0 +1,163 @@
+// @license
+// Copyright 2025 Dynatrace LLC
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package permissions
+
+import (
+	"bytes"
+	"context"
+	"net/url"
+
+	"github.com/dynatrace/dynatrace-configuration-as-code-core/api"
+	"github.com/dynatrace/dynatrace-configuration-as-code-core/api/rest"
+)
+
+const endpointConfigPath = "platform/classic/environment-api/v2/settings/objects"
+const permissionResourcePath = "permissions"
+const allUsersAccessorType = "all-users"
+
+type Client struct {
+	client *rest.Client
+}
+
+func NewClient(client *rest.Client) *Client {
+	return &Client{client: client}
+}
+
+func (c *Client) GetAllAccessors(ctx context.Context, objectID string) (api.Response, error) {
+	return c.get(ctx, objectID, "", "")
+}
+
+func (c *Client) GetAllUsersAccessor(ctx context.Context, objectID string) (api.Response, error) {
+	return c.get(ctx, objectID, allUsersAccessorType, "")
+}
+
+func (c *Client) GetAccessor(ctx context.Context, objectID string, accessorType string, accessorID string) (api.Response, error) {
+	if accessorType == "" {
+		return api.Response{}, ErrorPermissionGet{ErrorMissingAccessorType}
+	}
+
+	if accessorID == "" {
+		return api.Response{}, ErrorPermissionGet{ErrorMissingAccessorID}
+	}
+
+	return c.get(ctx, objectID, accessorType, accessorID)
+}
+
+func (c *Client) get(ctx context.Context, objectID string, accessorType string, accessorID string) (api.Response, error) {
+	if objectID == "" {
+		return api.Response{}, ErrorPermissionGet{ErrorMissingObjectID}
+	}
+
+	path, err := url.JoinPath(endpointConfigPath, objectID, permissionResourcePath, accessorType, accessorID)
+	if err != nil {
+		return api.Response{}, ErrorPermissionGet{err}
+	}
+
+	resp, err := c.client.GET(ctx, path, rest.RequestOptions{CustomShouldRetryFunc: rest.RetryIfTooManyRequests})
+
+	if err != nil {
+		return api.Response{}, ErrorPermissionGet{err}
+	}
+
+	return api.NewResponseFromHTTPResponse(resp)
+}
+
+func (c *Client) Create(ctx context.Context, objectID string, body []byte) (api.Response, error) {
+	if objectID == "" {
+		return api.Response{}, ErrorPermissionCreate{ErrorMissingObjectID}
+	}
+
+	path, err := url.JoinPath(endpointConfigPath, objectID, permissionResourcePath)
+	if err != nil {
+		return api.Response{}, ErrorPermissionCreate{err}
+	}
+
+	resp, err := c.client.POST(ctx, path, bytes.NewReader(body), rest.RequestOptions{CustomShouldRetryFunc: rest.RetryIfTooManyRequests})
+	if err != nil {
+		return api.Response{}, ErrorPermissionCreate{err}
+	}
+
+	return api.NewResponseFromHTTPResponse(resp)
+}
+
+func (c *Client) UpdateAllUsersAccessor(ctx context.Context, objectID string, body []byte) (api.Response, error) {
+	return c.update(ctx, objectID, allUsersAccessorType, "", body)
+}
+
+func (c *Client) UpdateAccessor(ctx context.Context, objectID string, accessorType string, accessorID string, body []byte) (api.Response, error) {
+	if accessorType == "" {
+		return api.Response{}, ErrorPermissionUpdate{ErrorMissingAccessorType}
+	}
+
+	if accessorID == "" {
+		return api.Response{}, ErrorPermissionUpdate{ErrorMissingAccessorID}
+	}
+
+	return c.update(ctx, objectID, accessorType, accessorID, body)
+}
+
+func (c *Client) update(ctx context.Context, objectID string, accessorType string, accessorID string, body []byte) (api.Response, error) {
+	if objectID == "" {
+		return api.Response{}, ErrorPermissionUpdate{ErrorMissingObjectID}
+	}
+
+	path, err := url.JoinPath(endpointConfigPath, objectID, permissionResourcePath, accessorType, accessorID)
+	if err != nil {
+		return api.Response{}, ErrorPermissionUpdate{err}
+	}
+
+	httpResp, err := c.client.PUT(ctx, path, bytes.NewReader(body), rest.RequestOptions{CustomShouldRetryFunc: rest.RetryIfTooManyRequests})
+
+	if err != nil {
+		return api.Response{}, ErrorPermissionUpdate{err}
+	}
+
+	return api.NewResponseFromHTTPResponse(httpResp)
+}
+
+func (c *Client) DeleteAllUsersAccessor(ctx context.Context, objectID string) (api.Response, error) {
+	return c.delete(ctx, objectID, allUsersAccessorType, "")
+}
+
+func (c *Client) DeleteAccessor(ctx context.Context, objectID string, accessorType string, accessorID string) (api.Response, error) {
+	if accessorType == "" {
+		return api.Response{}, ErrorPermissionDelete{ErrorMissingAccessorType}
+	}
+
+	if accessorID == "" {
+		return api.Response{}, ErrorPermissionDelete{ErrorMissingAccessorID}
+	}
+
+	return c.delete(ctx, objectID, accessorType, accessorID)
+}
+
+func (c *Client) delete(ctx context.Context, objectID string, accessorType string, accessorID string) (api.Response, error) {
+	if objectID == "" {
+		return api.Response{}, ErrorPermissionDelete{ErrorMissingObjectID}
+	}
+
+	path, err := url.JoinPath(endpointConfigPath, objectID, permissionResourcePath, accessorType, accessorID)
+	if err != nil {
+		return api.Response{}, ErrorPermissionDelete{err}
+	}
+
+	httpResp, err := c.client.DELETE(ctx, path, rest.RequestOptions{CustomShouldRetryFunc: rest.RetryIfTooManyRequests})
+
+	if err != nil {
+		return api.Response{}, ErrorPermissionDelete{err}
+	}
+
+	return api.NewResponseFromHTTPResponse(httpResp)
+}