mirror of https://github.com/octoleo/restic.git
92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
package adal
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// Copyright 2017 Microsoft Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import (
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"fmt"
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"net/url"
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)
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// OAuthConfig represents the endpoints needed
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// in OAuth operations
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type OAuthConfig struct {
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AuthorityEndpoint url.URL `json:"authorityEndpoint"`
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AuthorizeEndpoint url.URL `json:"authorizeEndpoint"`
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TokenEndpoint url.URL `json:"tokenEndpoint"`
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DeviceCodeEndpoint url.URL `json:"deviceCodeEndpoint"`
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}
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// IsZero returns true if the OAuthConfig object is zero-initialized.
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func (oac OAuthConfig) IsZero() bool {
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return oac == OAuthConfig{}
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}
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func validateStringParam(param, name string) error {
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if len(param) == 0 {
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return fmt.Errorf("parameter '" + name + "' cannot be empty")
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}
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return nil
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}
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// NewOAuthConfig returns an OAuthConfig with tenant specific urls
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func NewOAuthConfig(activeDirectoryEndpoint, tenantID string) (*OAuthConfig, error) {
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apiVer := "1.0"
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return NewOAuthConfigWithAPIVersion(activeDirectoryEndpoint, tenantID, &apiVer)
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}
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// NewOAuthConfigWithAPIVersion returns an OAuthConfig with tenant specific urls.
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// If apiVersion is not nil the "api-version" query parameter will be appended to the endpoint URLs with the specified value.
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func NewOAuthConfigWithAPIVersion(activeDirectoryEndpoint, tenantID string, apiVersion *string) (*OAuthConfig, error) {
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if err := validateStringParam(activeDirectoryEndpoint, "activeDirectoryEndpoint"); err != nil {
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return nil, err
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}
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api := ""
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// it's legal for tenantID to be empty so don't validate it
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if apiVersion != nil {
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if err := validateStringParam(*apiVersion, "apiVersion"); err != nil {
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return nil, err
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}
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api = fmt.Sprintf("?api-version=%s", *apiVersion)
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}
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const activeDirectoryEndpointTemplate = "%s/oauth2/%s%s"
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u, err := url.Parse(activeDirectoryEndpoint)
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if err != nil {
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return nil, err
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}
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authorityURL, err := u.Parse(tenantID)
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if err != nil {
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return nil, err
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}
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authorizeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "authorize", api))
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if err != nil {
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return nil, err
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}
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tokenURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "token", api))
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if err != nil {
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return nil, err
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}
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deviceCodeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "devicecode", api))
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if err != nil {
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return nil, err
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}
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return &OAuthConfig{
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AuthorityEndpoint: *authorityURL,
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AuthorizeEndpoint: *authorizeURL,
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TokenEndpoint: *tokenURL,
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DeviceCodeEndpoint: *deviceCodeURL,
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}, nil
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}
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