ef57fe4ae3
* routers: do not leak secrets via timing side channel * routers/repo: do not leak secrets via timing side channel
34 lines
856 B
Go
34 lines
856 B
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package routers
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import (
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"crypto/subtle"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"code.gitea.io/gitea/modules/context"
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"code.gitea.io/gitea/modules/setting"
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)
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// Metrics validate auth token and render prometheus metrics
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func Metrics(ctx *context.Context) {
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if setting.Metrics.Token == "" {
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promhttp.Handler().ServeHTTP(ctx.Resp, ctx.Req.Request)
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return
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}
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header := ctx.Req.Header.Get("Authorization")
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if header == "" {
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ctx.Error(401)
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return
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}
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got := []byte(header)
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want := []byte("Bearer " + setting.Metrics.Token)
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if subtle.ConstantTimeCompare(got, want) != 1 {
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ctx.Error(401)
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return
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}
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promhttp.Handler().ServeHTTP(ctx.Resp, ctx.Req.Request)
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}
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