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28 lines
745 B
Go
28 lines
745 B
Go
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package msauth
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import (
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"context"
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"golang.org/x/oauth2"
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"golang.org/x/oauth2/clientcredentials"
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"golang.org/x/oauth2/microsoft"
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)
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// ClientCredentialsGrant performs OAuth 2.0 client credentials grant and returns auto-refreshing TokenSource
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func (m *Manager) ClientCredentialsGrant(ctx context.Context, tenantID, clientID, clientSecret string, scopes []string) (oauth2.TokenSource, error) {
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config := &clientcredentials.Config{
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ClientID: clientID,
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ClientSecret: clientSecret,
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TokenURL: microsoft.AzureADEndpoint(tenantID).TokenURL,
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Scopes: scopes,
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AuthStyle: oauth2.AuthStyleInParams,
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}
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var err error
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ts := config.TokenSource(ctx)
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_, err = ts.Token()
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if err != nil {
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return nil, err
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}
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return ts, nil
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}
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