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51 lines
1.6 KiB
51 lines
1.6 KiB
// 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 pathParam struct{} |
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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 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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var ip string |
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if r.RemoteAddr != "" { |
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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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} |
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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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} |
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return promql.NewOriginContext(ctx, map[string]interface{}{ |
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"httpRequest": map[string]string{ |
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"clientIP": ip, |
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"method": r.Method, |
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"path": path, |
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}, |
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}) |
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}
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