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65 lines
2.0 KiB
65 lines
2.0 KiB
// Copyright 2015 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package context
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import (
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"net/http"
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"strconv"
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"time"
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"github.com/coreos/pkg/capnslog"
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"github.com/julienschmidt/httprouter"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/coreos/clair/config"
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"github.com/coreos/clair/database"
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"github.com/coreos/clair/utils"
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)
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var (
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log = capnslog.NewPackageLogger("github.com/coreos/clair", "api")
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promResponseDurationMilliseconds = prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Name: "clair_api_response_duration_milliseconds",
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Help: "The duration of time it takes to receieve and write a response to an API request",
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Buckets: prometheus.ExponentialBuckets(9.375, 2, 10),
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}, []string{"route", "code"})
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)
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func init() {
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prometheus.MustRegister(promResponseDurationMilliseconds)
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}
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type Handler func(http.ResponseWriter, *http.Request, httprouter.Params, *RouteContext) (route string, status int)
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func HTTPHandler(handler Handler, ctx *RouteContext) httprouter.Handle {
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return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
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start := time.Now()
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route, status := handler(w, r, p, ctx)
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statusStr := strconv.Itoa(status)
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if status == 0 {
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statusStr = "???"
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}
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utils.PrometheusObserveTimeMilliseconds(promResponseDurationMilliseconds.WithLabelValues(route, statusStr), start)
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log.Infof("%s \"%s %s\" %s (%s)", r.RemoteAddr, r.Method, r.RequestURI, statusStr, time.Since(start))
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}
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}
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type RouteContext struct {
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Store database.Datastore
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Config *config.APIConfig
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}
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