constellation/internal/license/checker_enterprise.go
Daniel Weiße 519efe637d
constellation-lib: run license check in Terraform provider and refactor code (#2740)
* Clean up license checker code

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* Create license check depending on init/upgrade actions

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* Run license check in Terraform provider

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* fix license integration test action

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* Run tests with enterprise tag

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* Allow b64 encoding for license ID

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

* Update checker_enterprise.go

---------

Signed-off-by: Daniel Weiße <dw@edgeless.systems>
Co-authored-by: Thomas Tendyck <51411342+thomasten@users.noreply.github.com>
2023-12-22 10:16:36 +01:00

99 lines
2.3 KiB
Go

//go:build enterprise
/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package license
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/http"
"net/url"
"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
)
const (
apiHost = "license.confidential.cloud"
licensePath = "api/v1/license"
)
// Checker checks the Constellation license.
type Checker struct {
httpClient *http.Client
}
// NewChecker creates a new Checker.
func NewChecker() *Checker {
return &Checker{
httpClient: http.DefaultClient,
}
}
// CheckLicense checks the Constellation license. If the license is valid, it returns the vCPU quota.
func (c *Checker) CheckLicense(ctx context.Context, csp cloudprovider.Provider, action Action, licenseID string) (int, error) {
checkRequest := quotaCheckRequest{
Provider: csp.String(),
License: licenseID,
Action: action,
}
reqBody, err := json.Marshal(checkRequest)
if err != nil {
return 0, fmt.Errorf("unable to marshal input: %w", err)
}
req, err := http.NewRequestWithContext(ctx, http.MethodPost, licenseURL().String(), bytes.NewBuffer(reqBody))
if err != nil {
return 0, fmt.Errorf("unable to create request: %w", err)
}
resp, err := c.httpClient.Do(req)
if err != nil {
return 0, fmt.Errorf("unable to do request: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return 0, fmt.Errorf("http error %d", resp.StatusCode)
}
responseContentType := resp.Header.Get("Content-Type")
if responseContentType != "application/json" {
return 0, fmt.Errorf("expected server JSON response but got '%s'", responseContentType)
}
var parsedResponse quotaCheckResponse
err = json.NewDecoder(resp.Body).Decode(&parsedResponse)
if err != nil {
return 0, fmt.Errorf("unable to parse response: %w", err)
}
return parsedResponse.Quota, nil
}
// quotaCheckRequest is JSON request to license server to check quota for a given license and action.
type quotaCheckRequest struct {
Action Action `json:"action"`
Provider string `json:"provider"`
License string `json:"license"`
}
// quotaCheckResponse is JSON response by license server.
type quotaCheckResponse struct {
Quota int `json:"quota"`
}
func licenseURL() *url.URL {
return &url.URL{
Scheme: "https",
Host: apiHost,
Path: licensePath,
}
}