mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-26 04:02:12 +00:00
339 lines
11 KiB
Go
339 lines
11 KiB
Go
// Copyright The OpenTelemetry Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package internal // import "go.opentelemetry.io/otel/semconv/internal"
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"go.opentelemetry.io/otel/attribute"
|
|
"go.opentelemetry.io/otel/codes"
|
|
"go.opentelemetry.io/otel/trace"
|
|
)
|
|
|
|
// SemanticConventions are the semantic convention values defined for a
|
|
// version of the OpenTelemetry specification.
|
|
type SemanticConventions struct {
|
|
EnduserIDKey attribute.Key
|
|
HTTPClientIPKey attribute.Key
|
|
HTTPFlavorKey attribute.Key
|
|
HTTPHostKey attribute.Key
|
|
HTTPMethodKey attribute.Key
|
|
HTTPRequestContentLengthKey attribute.Key
|
|
HTTPRouteKey attribute.Key
|
|
HTTPSchemeHTTP attribute.KeyValue
|
|
HTTPSchemeHTTPS attribute.KeyValue
|
|
HTTPServerNameKey attribute.Key
|
|
HTTPStatusCodeKey attribute.Key
|
|
HTTPTargetKey attribute.Key
|
|
HTTPURLKey attribute.Key
|
|
HTTPUserAgentKey attribute.Key
|
|
NetHostIPKey attribute.Key
|
|
NetHostNameKey attribute.Key
|
|
NetHostPortKey attribute.Key
|
|
NetPeerIPKey attribute.Key
|
|
NetPeerNameKey attribute.Key
|
|
NetPeerPortKey attribute.Key
|
|
NetTransportIP attribute.KeyValue
|
|
NetTransportOther attribute.KeyValue
|
|
NetTransportTCP attribute.KeyValue
|
|
NetTransportUDP attribute.KeyValue
|
|
NetTransportUnix attribute.KeyValue
|
|
}
|
|
|
|
// NetAttributesFromHTTPRequest generates attributes of the net
|
|
// namespace as specified by the OpenTelemetry specification for a
|
|
// span. The network parameter is a string that net.Dial function
|
|
// from standard library can understand.
|
|
func (sc *SemanticConventions) NetAttributesFromHTTPRequest(network string, request *http.Request) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{}
|
|
|
|
switch network {
|
|
case "tcp", "tcp4", "tcp6":
|
|
attrs = append(attrs, sc.NetTransportTCP)
|
|
case "udp", "udp4", "udp6":
|
|
attrs = append(attrs, sc.NetTransportUDP)
|
|
case "ip", "ip4", "ip6":
|
|
attrs = append(attrs, sc.NetTransportIP)
|
|
case "unix", "unixgram", "unixpacket":
|
|
attrs = append(attrs, sc.NetTransportUnix)
|
|
default:
|
|
attrs = append(attrs, sc.NetTransportOther)
|
|
}
|
|
|
|
peerIP, peerName, peerPort := hostIPNamePort(request.RemoteAddr)
|
|
if peerIP != "" {
|
|
attrs = append(attrs, sc.NetPeerIPKey.String(peerIP))
|
|
}
|
|
if peerName != "" {
|
|
attrs = append(attrs, sc.NetPeerNameKey.String(peerName))
|
|
}
|
|
if peerPort != 0 {
|
|
attrs = append(attrs, sc.NetPeerPortKey.Int(peerPort))
|
|
}
|
|
|
|
hostIP, hostName, hostPort := "", "", 0
|
|
for _, someHost := range []string{request.Host, request.Header.Get("Host"), request.URL.Host} {
|
|
hostIP, hostName, hostPort = hostIPNamePort(someHost)
|
|
if hostIP != "" || hostName != "" || hostPort != 0 {
|
|
break
|
|
}
|
|
}
|
|
if hostIP != "" {
|
|
attrs = append(attrs, sc.NetHostIPKey.String(hostIP))
|
|
}
|
|
if hostName != "" {
|
|
attrs = append(attrs, sc.NetHostNameKey.String(hostName))
|
|
}
|
|
if hostPort != 0 {
|
|
attrs = append(attrs, sc.NetHostPortKey.Int(hostPort))
|
|
}
|
|
|
|
return attrs
|
|
}
|
|
|
|
// hostIPNamePort extracts the IP address, name and (optional) port from hostWithPort.
|
|
// It handles both IPv4 and IPv6 addresses. If the host portion is not recognized
|
|
// as a valid IPv4 or IPv6 address, the `ip` result will be empty and the
|
|
// host portion will instead be returned in `name`.
|
|
func hostIPNamePort(hostWithPort string) (ip string, name string, port int) {
|
|
var (
|
|
hostPart, portPart string
|
|
parsedPort uint64
|
|
err error
|
|
)
|
|
if hostPart, portPart, err = net.SplitHostPort(hostWithPort); err != nil {
|
|
hostPart, portPart = hostWithPort, ""
|
|
}
|
|
if parsedIP := net.ParseIP(hostPart); parsedIP != nil {
|
|
ip = parsedIP.String()
|
|
} else {
|
|
name = hostPart
|
|
}
|
|
if parsedPort, err = strconv.ParseUint(portPart, 10, 16); err == nil {
|
|
port = int(parsedPort)
|
|
}
|
|
return
|
|
}
|
|
|
|
// EndUserAttributesFromHTTPRequest generates attributes of the
|
|
// enduser namespace as specified by the OpenTelemetry specification
|
|
// for a span.
|
|
func (sc *SemanticConventions) EndUserAttributesFromHTTPRequest(request *http.Request) []attribute.KeyValue {
|
|
if username, _, ok := request.BasicAuth(); ok {
|
|
return []attribute.KeyValue{sc.EnduserIDKey.String(username)}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// HTTPClientAttributesFromHTTPRequest generates attributes of the
|
|
// http namespace as specified by the OpenTelemetry specification for
|
|
// a span on the client side.
|
|
func (sc *SemanticConventions) HTTPClientAttributesFromHTTPRequest(request *http.Request) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{}
|
|
|
|
// remove any username/password info that may be in the URL
|
|
// before adding it to the attributes
|
|
userinfo := request.URL.User
|
|
request.URL.User = nil
|
|
|
|
attrs = append(attrs, sc.HTTPURLKey.String(request.URL.String()))
|
|
|
|
// restore any username/password info that was removed
|
|
request.URL.User = userinfo
|
|
|
|
return append(attrs, sc.httpCommonAttributesFromHTTPRequest(request)...)
|
|
}
|
|
|
|
func (sc *SemanticConventions) httpCommonAttributesFromHTTPRequest(request *http.Request) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{}
|
|
if ua := request.UserAgent(); ua != "" {
|
|
attrs = append(attrs, sc.HTTPUserAgentKey.String(ua))
|
|
}
|
|
if request.ContentLength > 0 {
|
|
attrs = append(attrs, sc.HTTPRequestContentLengthKey.Int64(request.ContentLength))
|
|
}
|
|
|
|
return append(attrs, sc.httpBasicAttributesFromHTTPRequest(request)...)
|
|
}
|
|
|
|
func (sc *SemanticConventions) httpBasicAttributesFromHTTPRequest(request *http.Request) []attribute.KeyValue {
|
|
// as these attributes are used by HTTPServerMetricAttributesFromHTTPRequest, they should be low-cardinality
|
|
attrs := []attribute.KeyValue{}
|
|
|
|
if request.TLS != nil {
|
|
attrs = append(attrs, sc.HTTPSchemeHTTPS)
|
|
} else {
|
|
attrs = append(attrs, sc.HTTPSchemeHTTP)
|
|
}
|
|
|
|
if request.Host != "" {
|
|
attrs = append(attrs, sc.HTTPHostKey.String(request.Host))
|
|
} else if request.URL != nil && request.URL.Host != "" {
|
|
attrs = append(attrs, sc.HTTPHostKey.String(request.URL.Host))
|
|
}
|
|
|
|
flavor := ""
|
|
if request.ProtoMajor == 1 {
|
|
flavor = fmt.Sprintf("1.%d", request.ProtoMinor)
|
|
} else if request.ProtoMajor == 2 {
|
|
flavor = "2"
|
|
}
|
|
if flavor != "" {
|
|
attrs = append(attrs, sc.HTTPFlavorKey.String(flavor))
|
|
}
|
|
|
|
if request.Method != "" {
|
|
attrs = append(attrs, sc.HTTPMethodKey.String(request.Method))
|
|
} else {
|
|
attrs = append(attrs, sc.HTTPMethodKey.String(http.MethodGet))
|
|
}
|
|
|
|
return attrs
|
|
}
|
|
|
|
// HTTPServerMetricAttributesFromHTTPRequest generates low-cardinality attributes
|
|
// to be used with server-side HTTP metrics.
|
|
func (sc *SemanticConventions) HTTPServerMetricAttributesFromHTTPRequest(serverName string, request *http.Request) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{}
|
|
if serverName != "" {
|
|
attrs = append(attrs, sc.HTTPServerNameKey.String(serverName))
|
|
}
|
|
return append(attrs, sc.httpBasicAttributesFromHTTPRequest(request)...)
|
|
}
|
|
|
|
// HTTPServerAttributesFromHTTPRequest generates attributes of the
|
|
// http namespace as specified by the OpenTelemetry specification for
|
|
// a span on the server side. Currently, only basic authentication is
|
|
// supported.
|
|
func (sc *SemanticConventions) HTTPServerAttributesFromHTTPRequest(serverName, route string, request *http.Request) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{
|
|
sc.HTTPTargetKey.String(request.RequestURI),
|
|
}
|
|
|
|
if serverName != "" {
|
|
attrs = append(attrs, sc.HTTPServerNameKey.String(serverName))
|
|
}
|
|
if route != "" {
|
|
attrs = append(attrs, sc.HTTPRouteKey.String(route))
|
|
}
|
|
if values := request.Header["X-Forwarded-For"]; len(values) > 0 {
|
|
addr := values[0]
|
|
if i := strings.Index(addr, ","); i > 0 {
|
|
addr = addr[:i]
|
|
}
|
|
attrs = append(attrs, sc.HTTPClientIPKey.String(addr))
|
|
}
|
|
|
|
return append(attrs, sc.httpCommonAttributesFromHTTPRequest(request)...)
|
|
}
|
|
|
|
// HTTPAttributesFromHTTPStatusCode generates attributes of the http
|
|
// namespace as specified by the OpenTelemetry specification for a
|
|
// span.
|
|
func (sc *SemanticConventions) HTTPAttributesFromHTTPStatusCode(code int) []attribute.KeyValue {
|
|
attrs := []attribute.KeyValue{
|
|
sc.HTTPStatusCodeKey.Int(code),
|
|
}
|
|
return attrs
|
|
}
|
|
|
|
type codeRange struct {
|
|
fromInclusive int
|
|
toInclusive int
|
|
}
|
|
|
|
func (r codeRange) contains(code int) bool {
|
|
return r.fromInclusive <= code && code <= r.toInclusive
|
|
}
|
|
|
|
var validRangesPerCategory = map[int][]codeRange{
|
|
1: {
|
|
{http.StatusContinue, http.StatusEarlyHints},
|
|
},
|
|
2: {
|
|
{http.StatusOK, http.StatusAlreadyReported},
|
|
{http.StatusIMUsed, http.StatusIMUsed},
|
|
},
|
|
3: {
|
|
{http.StatusMultipleChoices, http.StatusUseProxy},
|
|
{http.StatusTemporaryRedirect, http.StatusPermanentRedirect},
|
|
},
|
|
4: {
|
|
{http.StatusBadRequest, http.StatusTeapot}, // yes, teapot is so useful…
|
|
{http.StatusMisdirectedRequest, http.StatusUpgradeRequired},
|
|
{http.StatusPreconditionRequired, http.StatusTooManyRequests},
|
|
{http.StatusRequestHeaderFieldsTooLarge, http.StatusRequestHeaderFieldsTooLarge},
|
|
{http.StatusUnavailableForLegalReasons, http.StatusUnavailableForLegalReasons},
|
|
},
|
|
5: {
|
|
{http.StatusInternalServerError, http.StatusLoopDetected},
|
|
{http.StatusNotExtended, http.StatusNetworkAuthenticationRequired},
|
|
},
|
|
}
|
|
|
|
// SpanStatusFromHTTPStatusCode generates a status code and a message
|
|
// as specified by the OpenTelemetry specification for a span.
|
|
func SpanStatusFromHTTPStatusCode(code int) (codes.Code, string) {
|
|
spanCode, valid := validateHTTPStatusCode(code)
|
|
if !valid {
|
|
return spanCode, fmt.Sprintf("Invalid HTTP status code %d", code)
|
|
}
|
|
return spanCode, ""
|
|
}
|
|
|
|
// SpanStatusFromHTTPStatusCodeAndSpanKind generates a status code and a message
|
|
// as specified by the OpenTelemetry specification for a span.
|
|
// Exclude 4xx for SERVER to set the appropriate status.
|
|
func SpanStatusFromHTTPStatusCodeAndSpanKind(code int, spanKind trace.SpanKind) (codes.Code, string) {
|
|
spanCode, valid := validateHTTPStatusCode(code)
|
|
if !valid {
|
|
return spanCode, fmt.Sprintf("Invalid HTTP status code %d", code)
|
|
}
|
|
category := code / 100
|
|
if spanKind == trace.SpanKindServer && category == 4 {
|
|
return codes.Unset, ""
|
|
}
|
|
return spanCode, ""
|
|
}
|
|
|
|
// validateHTTPStatusCode validates the HTTP status code and returns
|
|
// corresponding span status code. If the `code` is not a valid HTTP status
|
|
// code, returns span status Error and false.
|
|
func validateHTTPStatusCode(code int) (codes.Code, bool) {
|
|
category := code / 100
|
|
ranges, ok := validRangesPerCategory[category]
|
|
if !ok {
|
|
return codes.Error, false
|
|
}
|
|
ok = false
|
|
for _, crange := range ranges {
|
|
ok = crange.contains(code)
|
|
if ok {
|
|
break
|
|
}
|
|
}
|
|
if !ok {
|
|
return codes.Error, false
|
|
}
|
|
if category > 0 && category < 4 {
|
|
return codes.Unset, true
|
|
}
|
|
return codes.Error, true
|
|
}
|