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2261936e8b
This is needed for Grafana, which may send step=undefined when working with alerting rules and instant queries.
37 lines
1 KiB
Go
37 lines
1 KiB
Go
package httputils
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import (
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"fmt"
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"net/http"
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"strconv"
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"github.com/VictoriaMetrics/VictoriaMetrics/lib/promutils"
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)
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// GetDuration returns duration in milliseconds from the given argKey query arg.
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func GetDuration(r *http.Request, argKey string, defaultValue int64) (int64, error) {
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argValue := r.FormValue(argKey)
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if len(argValue) == 0 {
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return defaultValue, nil
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}
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if argValue == "undefined" {
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// This hack is needed for Grafana, which may send undefined value
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return defaultValue, nil
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}
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secs, err := strconv.ParseFloat(argValue, 64)
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if err != nil {
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// Try parsing string format
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d, err := promutils.ParseDuration(argValue)
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if err != nil {
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return 0, fmt.Errorf("cannot parse %q=%q: %w", argKey, argValue, err)
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}
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secs = d.Seconds()
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}
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msecs := int64(secs * 1e3)
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if msecs <= 0 || msecs > maxDurationMsecs {
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return 0, fmt.Errorf("%q=%dms is out of allowed range [%d ... %d]", argKey, msecs, 0, int64(maxDurationMsecs))
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}
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return msecs, nil
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}
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const maxDurationMsecs = 100 * 365 * 24 * 3600 * 1000
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