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318cd413fc
Previously it could return error if RemoteAddr didn't have correct format, but since this field has no specified format, that was little too strict. Signed-off-by: Peter Štibraný <peter.stibrany@grafana.com>
57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// Copyright 2020 The Prometheus Authors
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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 httputil
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import (
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"context"
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"net"
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"net/http"
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"github.com/prometheus/prometheus/promql"
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)
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type ctxParam int
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var pathParam ctxParam
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// ContextWithPath returns a new context with the given path to be used later
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// when logging the query.
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func ContextWithPath(ctx context.Context, path string) context.Context {
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return context.WithValue(ctx, pathParam, path)
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}
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// ContextFromRequest returns a new context from a requests with identifiers of
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// the request to be used later when logging the query.
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func ContextFromRequest(ctx context.Context, r *http.Request) context.Context {
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m := map[string]string{
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"method": r.Method,
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}
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// r.RemoteAddr has no defined format, so don't return error if we cannot split it into IP:Port.
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ip, _, _ := net.SplitHostPort(r.RemoteAddr)
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if ip != "" {
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m["clientIP"] = ip
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}
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var path string
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if v := ctx.Value(pathParam); v != nil {
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path = v.(string)
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m["path"] = path
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}
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return promql.NewOriginContext(ctx, map[string]interface{}{
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"httpRequest": m,
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})
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}
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