mirror of https://github.com/poanetwork/quorum.git
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
package azblob
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import (
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"bytes"
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"context"
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"fmt"
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"os"
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"runtime"
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"github.com/Azure/azure-pipeline-go/pipeline"
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)
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// TelemetryOptions configures the telemetry policy's behavior.
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type TelemetryOptions struct {
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// Value is a string prepended to each request's User-Agent and sent to the service.
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// The service records the user-agent in logs for diagnostics and tracking of client requests.
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Value string
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}
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// NewTelemetryPolicyFactory creates a factory that can create telemetry policy objects
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// which add telemetry information to outgoing HTTP requests.
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func NewTelemetryPolicyFactory(o TelemetryOptions) pipeline.Factory {
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b := &bytes.Buffer{}
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b.WriteString(o.Value)
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if b.Len() > 0 {
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b.WriteRune(' ')
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}
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fmt.Fprintf(b, "Azure-Storage/%s %s", serviceLibVersion, platformInfo)
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telemetryValue := b.String()
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return pipeline.FactoryFunc(func(next pipeline.Policy, po *pipeline.PolicyOptions) pipeline.PolicyFunc {
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return func(ctx context.Context, request pipeline.Request) (pipeline.Response, error) {
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request.Header.Set("User-Agent", telemetryValue)
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return next.Do(ctx, request)
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}
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})
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}
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// NOTE: the ONLY function that should write to this variable is this func
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var platformInfo = func() string {
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// Azure-Storage/version (runtime; os type and version)”
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// Azure-Storage/1.4.0 (NODE-VERSION v4.5.0; Windows_NT 10.0.14393)'
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operatingSystem := runtime.GOOS // Default OS string
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switch operatingSystem {
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case "windows":
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operatingSystem = os.Getenv("OS") // Get more specific OS information
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case "linux": // accept default OS info
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case "freebsd": // accept default OS info
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}
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return fmt.Sprintf("(%s; %s)", runtime.Version(), operatingSystem)
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}()
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