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client.go
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client.go
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package graphrbac
import (
"context"
"fmt"
"regexp"
"strings"
//"github.com/Azure/azure-sdk-for-go/profiles/latest/authorization/mgmt/authorization"
"github.com/Azure/azure-sdk-for-go/services/preview/authorization/mgmt/2018-01-01-preview/authorization"
"github.com/Azure/go-autorest/autorest/to"
"github.com/invisibl-cloud/identity-manager/pkg/providers/azurex"
)
var uuidRE = regexp.MustCompile("^[a-z0-9]{8}-[a-z0-9]{4}-[1-5][a-z0-9]{3}-[a-z0-9]{4}-[a-z0-9]{12}$")
// Client is the RBAC client definition
type Client struct {
*azurex.Client
resourceGroup string
location string
}
// New returns the RBAC client
func New(p *azurex.Client) *Client {
return &Client{
Client: p,
resourceGroup: p.GetConfig().ResourceGroup,
location: p.GetConfig().Location,
}
}
func getRoleDefinitionsClient(p *azurex.Client) (authorization.RoleDefinitionsClient, error) {
c := authorization.NewRoleDefinitionsClient(p.GetConfig().SubscriptionID)
c.Authorizer = p.GetAuthorizer()
err := c.AddToUserAgent(azurex.UserAgent)
if err != nil {
return authorization.RoleDefinitionsClient{}, err
}
return c, nil
}
func getRoleAssignmentsClient(p *azurex.Client) (authorization.RoleAssignmentsClient, error) {
c := authorization.NewRoleAssignmentsClient(p.GetConfig().SubscriptionID)
c.Authorizer = p.GetAuthorizer()
err := c.AddToUserAgent(azurex.UserAgent)
if err != nil {
return authorization.RoleAssignmentsClient{}, err
}
return c, nil
}
// CreateOrUpdateRoleDefinition creates or updates the role definition
func (c Client) CreateOrUpdateRoleDefinition(ctx context.Context, id string, scope string, prop authorization.RoleDefinitionProperties) error {
rdc, err := getRoleDefinitionsClient(c.Client)
if err != nil {
return err
}
scope, err = c.ensureScope(scope)
if err != nil {
return err
}
_, err = rdc.CreateOrUpdate(ctx, scope, id, authorization.RoleDefinition{
RoleDefinitionProperties: &prop,
})
return err
}
// DeleteRoleDefinition deletes role definition
func (c Client) DeleteRoleDefinition(ctx context.Context, scope, id string) error {
rdc, err := getRoleDefinitionsClient(c.Client)
if err != nil {
return err
}
scope, err = c.ensureScope(scope)
if err != nil {
return err
}
_, err = rdc.Delete(ctx, scope, id)
return err
}
// ListRoleAssignments gets all role assignments for the principal
func (c Client) ListRoleAssignments(ctx context.Context, principalID string) ([]*authorization.RoleAssignment, error) {
rac, err := getRoleAssignmentsClient(c.Client)
if err != nil {
return nil, err
}
list := []*authorization.RoleAssignment{}
filter := fmt.Sprintf("principalId eq '%s'", principalID)
for l, err := rac.ListComplete(ctx, filter); l.NotDone(); err = l.NextWithContext(ctx) {
if err != nil {
return nil, err
}
v := l.Value()
list = append(list, &v)
}
return list, nil
}
// GetRoleDefintionIDFromName gets the role definition ID from the role name
func (c Client) GetRoleDefintionIDFromName(ctx context.Context, name string, scope string) (string, error) {
if strings.HasPrefix(name, "/") {
return name, nil
}
if uuidRE.MatchString(name) {
return fmt.Sprintf("/subscriptions/%s/providers/Microsoft.Authorization/roleDefinitions/%s", c.GetConfig().SubscriptionID, name), nil
}
scope, err := c.ensureScope(scope)
if err != nil {
return "", err
}
rdc, err := getRoleDefinitionsClient(c.Client)
if err != nil {
return "", err
}
l, err := rdc.List(ctx, scope, fmt.Sprintf("roleName eq '%s'", name))
if err != nil {
return "", err
}
items := l.Values()
switch len(items) {
case 0:
return "", fmt.Errorf("role %s not found", name)
case 1:
return to.String(items[0].ID), nil
default:
return "", fmt.Errorf("found multiple role definitions with name %q", name)
}
}
// DeleteRoleAssignment deletes the role assingnment
func (c Client) DeleteRoleAssignment(ctx context.Context, id string) error {
rac, err := getRoleAssignmentsClient(c.Client)
if err != nil {
return err
}
_, err = rac.DeleteByID(ctx, id)
return err
}
// CreateRoleAssignment creates role assignment
func (c Client) CreateRoleAssignment(ctx context.Context, id string, principalID, roleDefinitionID, scope string) (string, error) {
scope, err := c.ensureScope(scope)
if err != nil {
return "", err
}
rac, err := getRoleAssignmentsClient(c.Client)
if err != nil {
return "", err
}
p := authorization.RoleAssignmentCreateParameters{
RoleAssignmentProperties: &authorization.RoleAssignmentProperties{
RoleDefinitionID: azurex.ToStringPtr(roleDefinitionID),
PrincipalID: azurex.ToStringPtr(principalID),
},
}
pr, err := rac.Create(ctx, scope, id, p)
if err != nil {
return "", err
}
return to.String(pr.ID), nil
}
func (c Client) ensureScope(scope string) (string, error) {
if scope == "" {
return fmt.Sprintf("/subscriptions/%s/resourceGroups/%s", c.Client.GetConfig().SubscriptionID, c.resourceGroup), nil
}
return c.ensureResourceID(scope)
}
func (c Client) ensureResourceID(id string) (string, error) {
if strings.HasPrefix(id, "/") {
return id, nil
}
sb := strings.Builder{}
if !strings.HasPrefix(id, "/subscriptions/") {
sb.WriteString("/subscriptions/")
sb.WriteString(c.Client.GetConfig().SubscriptionID)
}
if !strings.Contains(id, "/resourceGroups/") {
sb.WriteString("/resourceGroups/")
sb.WriteString(c.resourceGroup)
}
sb.WriteString("/")
if strings.Contains(id, "@") {
parts := strings.Split(id, "@")
switch parts[1] {
case "dnszones":
sb.WriteString("providers/Microsoft.Network/dnszones/")
default:
return "", fmt.Errorf("unsupported alias %s", parts[1])
}
sb.WriteString(parts[0])
} else {
sb.WriteString(id)
}
return sb.String(), nil
}