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27 lines
937 B
27 lines
937 B
package aztokenprovider
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import (
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"fmt"
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"net/http"
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"github.com/grafana/grafana-plugin-sdk-go/backend/httpclient"
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)
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const authenticationMiddlewareName = "AzureAuthentication"
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func AuthMiddleware(tokenProvider AzureTokenProvider, scopes []string) httpclient.Middleware {
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return httpclient.NamedMiddlewareFunc(authenticationMiddlewareName, func(opts httpclient.Options, next http.RoundTripper) http.RoundTripper {
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return ApplyAuth(tokenProvider, scopes, next)
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})
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}
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func ApplyAuth(tokenProvider AzureTokenProvider, scopes []string, next http.RoundTripper) http.RoundTripper {
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return httpclient.RoundTripperFunc(func(req *http.Request) (*http.Response, error) {
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token, err := tokenProvider.GetAccessToken(req.Context(), scopes)
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if err != nil {
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return nil, fmt.Errorf("failed to retrieve Azure access token: %w", err)
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}
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req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
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return next.RoundTrip(req)
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})
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}
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