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Add HTTP trace logging (#965)
* Dump all requests/response server-side * Wrap in DENDRITE_TRACE * DENDRITE_TRACE_HTTP is better * Bugfix for response body and linting * False is true and true is false * Linting * How did this get missed * More linting
This commit is contained in:
Kegsay
GitHub
parent
dadb06f6ad
commit
c2ea961909
3 changed files with 58 additions and 1 deletions
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@ -1,7 +1,12 @@
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package common
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import (
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"io"
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"net/http"
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"net/http/httptest"
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"net/http/httputil"
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"os"
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"strings"
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"time"
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"github.com/matrix-org/dendrite/clientapi/auth"
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@ -46,12 +51,60 @@ func MakeAuthAPI(
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// MakeExternalAPI turns a util.JSONRequestHandler function into an http.Handler.
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// This is used for APIs that are called from the internet.
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func MakeExternalAPI(metricsName string, f func(*http.Request) util.JSONResponse) http.Handler {
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// TODO: We shouldn't be directly reading env vars here, inject it in instead.
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// Refactor this when we split out config structs.
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verbose := false
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if os.Getenv("DENDRITE_TRACE_HTTP") == "1" {
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verbose = true
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}
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h := util.MakeJSONAPI(util.NewJSONRequestHandler(f))
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withSpan := func(w http.ResponseWriter, req *http.Request) {
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nextWriter := w
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if verbose {
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logger := logrus.NewEntry(logrus.StandardLogger())
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// Log outgoing response
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rec := httptest.NewRecorder()
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nextWriter = rec
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defer func() {
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resp := rec.Result()
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dump, err := httputil.DumpResponse(resp, true)
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if err != nil {
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logger.Debugf("Failed to dump outgoing response: %s", err)
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} else {
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strSlice := strings.Split(string(dump), "\n")
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for _, s := range strSlice {
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logger.Debug(s)
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}
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}
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// copy the response to the client
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for hdr, vals := range resp.Header {
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for _, val := range vals {
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w.Header().Add(hdr, val)
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}
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}
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w.WriteHeader(resp.StatusCode)
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// discard errors as this is for debugging
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_, _ = io.Copy(w, resp.Body)
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_ = resp.Body.Close()
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}()
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// Log incoming request
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dump, err := httputil.DumpRequest(req, true)
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if err != nil {
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logger.Debugf("Failed to dump incoming request: %s", err)
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} else {
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strSlice := strings.Split(string(dump), "\n")
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for _, s := range strSlice {
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logger.Debug(s)
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}
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}
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}
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span := opentracing.StartSpan(metricsName)
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defer span.Finish()
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req = req.WithContext(opentracing.ContextWithSpan(req.Context(), span))
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h.ServeHTTP(w, req)
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h.ServeHTTP(nextWriter, req)
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}
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return http.HandlerFunc(withSpan)
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1
go.mod
1
go.mod
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@ -26,6 +26,7 @@ require (
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github.com/pierrec/lz4 v2.5.0+incompatible // indirect
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github.com/pkg/errors v0.9.1
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github.com/prometheus/client_golang v1.4.1
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github.com/prometheus/common v0.9.1
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github.com/rcrowley/go-metrics v0.0.0-20200313005456-10cdbea86bc0 // indirect
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github.com/sirupsen/logrus v1.4.2
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github.com/tidwall/gjson v1.6.0 // indirect
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3
go.sum
3
go.sum
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@ -10,8 +10,10 @@ github.com/Shopify/toxiproxy v2.1.4+incompatible h1:TKdv8HiTLgE5wdJuEML90aBgNWso
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github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
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github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
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github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
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github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 h1:Hs82Z41s6SdL1CELW+XaDYmOH4hkBN4/N9og/AsOv7E=
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github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
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github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
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@ -688,6 +690,7 @@ google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZi
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google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
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gopkg.in/Shopify/sarama.v1 v1.20.1 h1:Gi09A3fJXm0Jgt8kuKZ8YK+r60GfYn7MQuEmI3oq6hE=
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gopkg.in/Shopify/sarama.v1 v1.20.1/go.mod h1:AxnvoaevB2nBjNK17cG61A3LleFcWFwVBHBt+cot4Oc=
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gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
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gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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