33 lines
718 B
Go
33 lines
718 B
Go
package useragent
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import (
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"context"
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"github.com/docker/attest/version"
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)
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type userAgentKeyType string
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const (
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userAgentKey userAgentKeyType = "attest-user-agent"
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defaultUserAgent string = "attest/unknown (docker)"
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)
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func Set(ctx context.Context, userAgent string) context.Context {
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return context.WithValue(ctx, userAgentKey, userAgent)
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}
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// Get retrieves the HTTP user agent from the context.
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func Get(ctx context.Context) string {
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fetcher := version.NewGoVersionFetcher()
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if ua, ok := ctx.Value(userAgentKey).(string); ok {
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return ua
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}
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version, err := fetcher.Get()
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if err != nil || version == nil {
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return defaultUserAgent
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}
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return "attest/" + version.String() + " (docker)"
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}
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