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Diffstat (limited to 'vendor/go.opentelemetry.io/otel/semconv/internal/http.go')
-rw-r--r--vendor/go.opentelemetry.io/otel/semconv/internal/http.go327
1 files changed, 0 insertions, 327 deletions
diff --git a/vendor/go.opentelemetry.io/otel/semconv/internal/http.go b/vendor/go.opentelemetry.io/otel/semconv/internal/http.go
deleted file mode 100644
index d5197e16c..000000000
--- a/vendor/go.opentelemetry.io/otel/semconv/internal/http.go
+++ /dev/null
@@ -1,327 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-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) // nolint: gosec // Bit size of 16 checked above.
- }
- 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
-}