update prometheus client golang

update docker/distribution lib

Signed-off-by: Hilário Coelho <hilario.coelho@securityside.com>

gateway/vendor/github.com/prometheus/common/model/labels.go

@@ -45,6 +45,14 @@ const (
 	// scrape a target.
 	MetricsPathLabel = "__metrics_path__"
 
+	// ScrapeIntervalLabel is the name of the label that holds the scrape interval
+	// used to scrape a target.
+	ScrapeIntervalLabel = "__scrape_interval__"
+
+	// ScrapeTimeoutLabel is the name of the label that holds the scrape
+	// timeout used to scrape a target.
+	ScrapeTimeoutLabel = "__scrape_timeout__"
+
 	// ReservedLabelPrefix is a prefix which is not legal in user-supplied
 	// label names.
 	ReservedLabelPrefix = "__"

gateway/vendor/github.com/prometheus/common/model/time.go

@@ -14,6 +14,8 @@
 package model
 
 import (
+	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"regexp"
@@ -201,13 +203,23 @@ func ParseDuration(durationStr string) (Duration, error) {
 
 	// Parse the match at pos `pos` in the regex and use `mult` to turn that
 	// into ms, then add that value to the total parsed duration.
+	var overflowErr error
 	m := func(pos int, mult time.Duration) {
 		if matches[pos] == "" {
 			return
 		}
 		n, _ := strconv.Atoi(matches[pos])
+
+		// Check if the provided duration overflows time.Duration (> ~ 290years).
+		if n > int((1<<63-1)/mult/time.Millisecond) {
+			overflowErr = errors.New("duration out of range")
+		}
 		d := time.Duration(n) * time.Millisecond
 		dur += d * mult
+
+		if dur < 0 {
+			overflowErr = errors.New("duration out of range")
+		}
 	}
 
 	m(2, 1000*60*60*24*365) // y
@@ -218,7 +230,7 @@ func ParseDuration(durationStr string) (Duration, error) {
 	m(12, 1000)             // s
 	m(14, 1)                // ms
 
-	return Duration(dur), nil
+	return Duration(dur), overflowErr
 }
 
 func (d Duration) String() string {
@@ -254,6 +266,37 @@ func (d Duration) String() string {
 	return r
 }
 
+// MarshalJSON implements the json.Marshaler interface.
+func (d Duration) MarshalJSON() ([]byte, error) {
+	return json.Marshal(d.String())
+}
+
+// UnmarshalJSON implements the json.Unmarshaler interface.
+func (d *Duration) UnmarshalJSON(bytes []byte) error {
+	var s string
+	if err := json.Unmarshal(bytes, &s); err != nil {
+		return err
+	}
+	dur, err := ParseDuration(s)
+	if err != nil {
+		return err
+	}
+	*d = dur
+	return nil
+}
+
+// MarshalText implements the encoding.TextMarshaler interface.
+func (d *Duration) MarshalText() ([]byte, error) {
+	return []byte(d.String()), nil
+}
+
+// UnmarshalText implements the encoding.TextUnmarshaler interface.
+func (d *Duration) UnmarshalText(text []byte) error {
+	var err error
+	*d, err = ParseDuration(string(text))
+	return err
+}
+
 // MarshalYAML implements the yaml.Marshaler interface.
 func (d Duration) MarshalYAML() (interface{}, error) {
 	return d.String(), nil