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62 lines
2.4 KiB
Go
62 lines
2.4 KiB
Go
package pluginproxy
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import (
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"context"
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"strings"
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"github.com/grafana/grafana-azure-sdk-go/v2/azcredentials"
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"github.com/grafana/grafana-azure-sdk-go/v2/azsettings"
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"github.com/grafana/grafana-azure-sdk-go/v2/aztokenprovider"
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"github.com/grafana/grafana/pkg/plugins"
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"github.com/grafana/grafana/pkg/setting"
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)
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type azureAccessTokenProvider struct {
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ctx context.Context
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tokenProvider aztokenprovider.AzureTokenProvider
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scopes []string
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}
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func newAzureAccessTokenProvider(ctx context.Context, cfg *setting.Cfg, authParams *plugins.JWTTokenAuth) (*azureAccessTokenProvider, error) {
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credentials := getAzureCredentials(cfg.Azure, authParams)
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tokenProvider, err := aztokenprovider.NewAzureAccessTokenProvider(cfg.Azure, credentials, false)
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if err != nil {
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return nil, err
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}
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return &azureAccessTokenProvider{
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ctx: ctx,
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tokenProvider: tokenProvider,
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scopes: authParams.Scopes,
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}, nil
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}
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func (provider *azureAccessTokenProvider) GetAccessToken() (string, error) {
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return provider.tokenProvider.GetAccessToken(provider.ctx, provider.scopes)
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}
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func getAzureCredentials(settings *azsettings.AzureSettings, authParams *plugins.JWTTokenAuth) azcredentials.AzureCredentials {
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authType := strings.ToLower(authParams.Params["azure_auth_type"])
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clientId := authParams.Params["client_id"]
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// Type of authentication being determined by the following logic:
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// * If authType is set to 'msi' then user explicitly selected the managed identity authentication
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// * If authType isn't set but other fields are configured then it's a datasource which was configured
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// before managed identities where introduced, therefore use client secret authentication
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// * If authType and other fields aren't set then it means the datasource never been configured
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// and managed identity is the default authentication choice as long as managed identities are enabled
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isManagedIdentity := authType == "msi" || (authType == "" && clientId == "" && settings.ManagedIdentityEnabled)
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if isManagedIdentity {
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return &azcredentials.AzureManagedIdentityCredentials{}
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} else {
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return &azcredentials.AzureClientSecretCredentials{
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AzureCloud: authParams.Params["azure_cloud"],
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Authority: authParams.Url,
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TenantId: authParams.Params["tenant_id"],
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ClientId: authParams.Params["client_id"],
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ClientSecret: authParams.Params["client_secret"],
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}
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}
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}
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