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27 changes: 27 additions & 0 deletions .chloggen/audit-logs-add-more-fields.yaml
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
# Use this changelog template to create an entry for release notes.

# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
change_type: enhancement

# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
component: googlecloudlogentry_encoding

# A brief description of the change. Surround your text with quotes ("") if it needs to start with a backtick (`).
note: Add support for request attributes and destination attributes in cloud audit logs

# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
issues: [42160]

# (Optional) One or more lines of additional information to render under the primary note.
# These lines will be padded with 2 spaces and then inserted directly into the document.
# Use pipe (|) for multiline entries.
subtext:

# If your change doesn't affect end users or the exported elements of any package,
# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
# Optional: The change log or logs in which this entry should be included.
# e.g. '[user]' or '[user, api]'
# Include 'user' if the change is relevant to end users.
# Include 'api' if there is a change to a library API.
# Default: '[user]'
change_logs: []
Original file line number Diff line number Diff line change
Expand Up @@ -150,8 +150,27 @@ See the struct of the Cloud Audit Log payload in [AuditLog](https://cloud.google
| `requestMetadata.callerIp` | `client.address` |
| `requestMetadata.callerSuppliedUserAgent` | `user_agent.original` |
| `requestMetadata.callerNetwork` | `gcp.audit.request.caller.network` |
| `requestMetadata.requestAttributes` | _Currently not supported_ |
| `requestMetadata.destinationAttributes` | _Currently not supported_ |
| `requestMetadata.requestAttributes.id` | `http.request.id` |
| `requestMetadata.requestAttributes.method` | `http.request.method` |
| `requestMetadata.requestAttributes.headers` | `http.request.header.<header name>` |
| `requestMetadata.requestAttributes.path` | `url.path` |
| `requestMetadata.requestAttributes.host` | `http.request.header.host` |
| `requestMetadata.requestAttributes.scheme` | `url.scheme` |
| `requestMetadata.requestAttributes.query` | `url.query` |
| `requestMetadata.requestAttributes.time` | `gcp.audit.request.time` |
| `requestMetadata.requestAttributes.size` | `http.request.size` |
| `requestMetadata.requestAttributes.protocol` | `network.protocol.name` |
| `requestMetadata.requestAttributes.reason` | `gcp.audit.request.reason` |
| `requestMetadata.requestAttributes.auth.principal` | `gcp.audit.request.auth.principal` |
| `requestMetadata.requestAttributes.auth.audiences` | `gcp.audit.request.auth.audiences` |
| `requestMetadata.requestAttributes.auth.presenter` | `gcp.audit.request.auth.presenter` |
| `requestMetadata.requestAttributes.auth.accessLevels` | `gcp.audit.request.auth.access_levels` |
| `requestMetadata.requestAttributes.auth.claims` | _Currently not supported_ |
| `requestMetadata.destinationAttributes.ip` | `server.address` |
| `requestMetadata.destinationAttributes.port` | `server.port` |
| `requestMetadata.destinationAttributes.labels` | `gcp.audit.destination.label.<label_key>` |
| `requestMetadata.destinationAttributes.principal` | `gcp.audit.destination.principal` |
| `requestMetadata.destinationAttributes.regionCode` | `gcp.audit.destination.region_code` |
| `request` | _Currently not supported_ |
| `response` | _Currently not supported_ |
| `metadata` | _Currently not supported_ |
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ package auditlog // import "github.com/open-telemetry/opentelemetry-collector-co
import (
"errors"
"fmt"
"strings"

gojson "github.com/goccy/go-json"
"github.com/iancoleman/strcase"
Expand Down Expand Up @@ -54,6 +55,28 @@ const (

// gcpAuditRequestCallerNetwork holds the network of the request caller
gcpAuditRequestCallerNetwork = "gcp.audit.request.caller.network"
// gcpAuditRequestReason holds the reason for the request.
gcpAuditRequestReason = "gcp.audit.request.reason"
// gcpAuditRequestTime holds the timestamp for when the destination receives the last byte of the request
gcpAuditRequestTime = "gcp.audit.request.time"
// httpRequestID will hold the request ID from requestMetadata.requestAttributes.id
httpRequestID = "http.request.id"
// gcpAuditRequestAuthPrincipal holds the principal at transport level layer
gcpAuditRequestAuthPrincipal = "gcp.audit.request.auth.principal"
// gcpAuditRequestAuthAudiences holds the audience at transport level layer
gcpAuditRequestAuthAudiences = "gcp.audit.request.auth.audiences"
// gcpAuditRequestAuthPresenter holds the presenter at transport level layer
gcpAuditRequestAuthPresenter = "gcp.audit.request.auth.presenter"
// gcpAuditRequestAuthAccessLevels holds the list of access level resource names that allow
// resources to be accessed, at transport level layer
gcpAuditRequestAuthAccessLevels = "gcp.audit.request.auth.access_levels"

// gcpAuditDestinationLabels holds the labels in the destination attributes
gcpAuditDestinationLabels = "gcp.audit.destination.label"
// gcpAuditDestinationPrincipal holds the identity of the destination
gcpAuditDestinationPrincipal = "gcp.audit.destination.principal"
// gcpAuditDestinationRegionCode holds the region code of the destination
gcpAuditDestinationRegionCode = "gcp.audit.destination.region_code"

// gcpAuditPolicyViolationResourceType holds the esource type that the orgpolicy is checked against
gcpAuditPolicyViolationResourceType = "gcp.audit.policy_violation.resource.type"
Expand Down Expand Up @@ -145,11 +168,42 @@ type violationInfo struct {
}

type requestMetadata struct {
CallerIP string `json:"callerIp"`
CallerSuppliedUserAgent string `json:"callerSuppliedUserAgent"`
CallerNetwork string `json:"callerNetwork"`
// TODO Add requestAttributes
// TODO Add destinationAttributes
CallerIP string `json:"callerIp"`
CallerSuppliedUserAgent string `json:"callerSuppliedUserAgent"`
CallerNetwork string `json:"callerNetwork"`
RequestAttributes *requestAttributes `json:"requestAttributes"`
DestinationAttributes *destinationAttributes `json:"destinationAttributes"`
}

type requestAttributes struct {
ID string `json:"id"`
Method string `json:"method"`
Headers map[string]string `json:"headers"`
Path string `json:"path"`
Host string `json:"host"`
Scheme string `json:"scheme"`
Query string `json:"query"`
Time string `json:"time"`
Size string `json:"size"`
Protocol string `json:"protocol"`
Reason string `json:"reason"`
Auth auth `json:"auth"`
}

type auth struct {
Principal string `json:"principal"`
Audiences []string `json:"audiences"`
Presenter string `json:"presenter"`
AccessLevels []string `json:"accessLevels"`
// TODO Add support for claims
}

type destinationAttributes struct {
IP string `json:"ip"`
Port string `json:"port"`
Labels map[string]string `json:"labels"`
Principal string `json:"principal"`
RegionCode string `json:"regionCode"`
}

// isValid checks that the log meets requirements
Expand Down Expand Up @@ -215,11 +269,11 @@ func handleAuthorizationInfo(info []authorizationInfo, attr pcommon.Map) {
}

infoList := attr.PutEmptySlice(gcpAuditAuthorization)
for _, auth := range info {
for _, authI := range info {
m := infoList.AppendEmpty().SetEmptyMap()
shared.PutStr(gcpAuditAuthorizationPermission, auth.Permission, m)
shared.PutBool(gcpAuditAuthorizationGranted, auth.Granted, m)
shared.PutStr(gcpAuditAuthorizationResource, auth.Resource, m)
shared.PutStr(gcpAuditAuthorizationPermission, authI.Permission, m)
shared.PutBool(gcpAuditAuthorizationGranted, authI.Granted, m)
shared.PutStr(gcpAuditAuthorizationResource, authI.Resource, m)
}
}

Expand Down Expand Up @@ -258,14 +312,65 @@ func handlePolicyViolationInfo(info *policyViolationInfo, attr pcommon.Map) {
}
}

func handleRequestMetadata(metadata *requestMetadata, attr pcommon.Map) {
func handleRequestMetadata(metadata *requestMetadata, attr pcommon.Map) error {
if metadata == nil {
return
return nil
}

shared.PutStr(string(semconv.ClientAddressKey), metadata.CallerIP, attr)
shared.PutStr(string(semconv.UserAgentOriginalKey), metadata.CallerSuppliedUserAgent, attr)
shared.PutStr(gcpAuditRequestCallerNetwork, metadata.CallerNetwork, attr)

if metadata.RequestAttributes != nil {
if err := shared.AddStrAsInt(string(semconv.HTTPRequestSizeKey), metadata.RequestAttributes.Size, attr); err != nil {
return fmt.Errorf("failed to add http request size %s: %w", metadata.RequestAttributes.Size, err)
}
shared.PutStr(string(semconv.HTTPRequestMethodKey), metadata.RequestAttributes.Method, attr)
shared.PutStr(string(semconv.URLQueryKey), metadata.RequestAttributes.Query, attr)
shared.PutStr(string(semconv.URLPathKey), metadata.RequestAttributes.Path, attr)
shared.PutStr(string(semconv.URLSchemeKey), metadata.RequestAttributes.Scheme, attr)
shared.PutStr(gcpAuditRequestTime, metadata.RequestAttributes.Time, attr)
shared.PutStr("http.request.header.host", metadata.RequestAttributes.Host, attr)
for h, v := range metadata.RequestAttributes.Headers {
shared.PutStr("http.request.header."+strings.ToLower(h), v, attr)
}
shared.PutStr(string(semconv.NetworkProtocolNameKey), strings.ToLower(metadata.RequestAttributes.Protocol), attr)
shared.PutStr(gcpAuditRequestReason, metadata.RequestAttributes.Reason, attr)
shared.PutStr(httpRequestID, metadata.RequestAttributes.ID, attr)
shared.PutStr(gcpAuditRequestAuthPrincipal, metadata.RequestAttributes.Auth.Principal, attr)
shared.PutStr(gcpAuditRequestAuthPresenter, metadata.RequestAttributes.Auth.Presenter, attr)
if len(metadata.RequestAttributes.Auth.AccessLevels) > 0 {
sl := attr.PutEmptySlice(gcpAuditRequestAuthAccessLevels)
for _, level := range metadata.RequestAttributes.Auth.AccessLevels {
v := sl.AppendEmpty()
v.SetStr(level)
}
}
if len(metadata.RequestAttributes.Auth.Audiences) > 0 {
sl := attr.PutEmptySlice(gcpAuditRequestAuthAudiences)
for _, audience := range metadata.RequestAttributes.Auth.Audiences {
v := sl.AppendEmpty()
v.SetStr(audience)
}
}
}

if metadata.DestinationAttributes != nil {
if err := shared.AddStrAsInt(string(semconv.ServerPortKey), metadata.DestinationAttributes.Port, attr); err != nil {
return fmt.Errorf("failed to add destination port %s: %w", metadata.DestinationAttributes.Port, err)
}
shared.PutStr(string(semconv.ServerAddressKey), metadata.DestinationAttributes.IP, attr)
shared.PutStr(gcpAuditDestinationPrincipal, metadata.DestinationAttributes.Principal, attr)
shared.PutStr(gcpAuditDestinationRegionCode, metadata.DestinationAttributes.RegionCode, attr)
if len(metadata.DestinationAttributes.Labels) > 0 {
m := attr.PutEmptyMap(gcpAuditDestinationLabels)
for l, v := range metadata.DestinationAttributes.Labels {
shared.PutStr(strcase.ToSnakeWithIgnore(l, "."), v, m)
}
}
}

return nil
}

func ParsePayloadIntoAttributes(payload []byte, attr pcommon.Map) error {
Expand All @@ -284,14 +389,17 @@ func ParsePayloadIntoAttributes(payload []byte, attr pcommon.Map) error {
return fmt.Errorf("failed to add number of response items: %w", err)
}

if err := handleRequestMetadata(log.RequestMetadata, attr); err != nil {
return fmt.Errorf("failed to add request metadata: %w", err)
}

shared.PutStr(gcpAuditResourceName, log.ResourceName, attr)
handleResourceLocation(log.ResourceLocation, attr)

handleStatus(log.Status, attr)
handleAuthenticationInfo(log.AuthenticationInfo, attr)
handleAuthorizationInfo(log.AuthorizationInfo, attr)
handlePolicyViolationInfo(log.PolicyViolationInfo, attr)
handleRequestMetadata(log.RequestMetadata, attr)
handlePolicyViolationInfo(log.PolicyViolationInfo, attr)

return nil
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -239,6 +239,7 @@ func TestHandleRequestMetadata(t *testing.T) {
tests := map[string]struct {
metadata *requestMetadata
expectedAttr map[string]any
expectsErr string
}{
"nil": {
metadata: nil,
Expand All @@ -256,13 +257,102 @@ func TestHandleRequestMetadata(t *testing.T) {
gcpAuditRequestCallerNetwork: "//compute.googleapis.com/projects/elastic-apps-163815/global/networks/__unknown__",
},
},
"request attributes": {
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perhaps add a test with invalid payload to document the parsing failure?

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Thanks @andrzej-stencel , I have added the test cases for the errors both in request attributes & destination attributes

metadata: &requestMetadata{
RequestAttributes: &requestAttributes{
ID: "req-12345",
Method: "GET",
Headers: map[string]string{
"User-Agent": "test-client/1.0",
"Accept": "application/json",
},
Path: "/test/path",
Host: "example.com",
Scheme: "https",
Query: "foo=bar&baz=qux",
Time: "2025-08-21T12:34:56Z",
Size: "1234",
Protocol: "HTTP/1.1",
Reason: "test-reason",
Auth: auth{
Principal: "[email protected]",
Audiences: []string{"test-service", "another-service"},
Presenter: "test-presenter",
AccessLevels: []string{"level1", "level2"},
},
},
},
expectedAttr: map[string]any{
string(semconv.HTTPRequestSizeKey): int64(1234),
string(semconv.HTTPRequestMethodKey): "GET",
string(semconv.URLQueryKey): "foo=bar&baz=qux",
string(semconv.URLPathKey): "/test/path",
string(semconv.URLSchemeKey): "https",
gcpAuditRequestTime: "2025-08-21T12:34:56Z",
"http.request.header.host": "example.com",
"http.request.header.user-agent": "test-client/1.0",
"http.request.header.accept": "application/json",
string(semconv.NetworkProtocolNameKey): "http/1.1",
gcpAuditRequestReason: "test-reason",
httpRequestID: "req-12345",
gcpAuditRequestAuthPrincipal: "[email protected]",
gcpAuditRequestAuthPresenter: "test-presenter",
gcpAuditRequestAuthAccessLevels: []any{"level1", "level2"},
gcpAuditRequestAuthAudiences: []any{"test-service", "another-service"},
},
},
"request attributes - invalid request size format": {
metadata: &requestMetadata{
RequestAttributes: &requestAttributes{
Size: "invalid",
},
},
expectsErr: "failed to add http request size",
},
"destination attributes": {
metadata: &requestMetadata{
DestinationAttributes: &destinationAttributes{
IP: "10.0.0.1",
Port: "8080",
Principal: "serviceAccount:[email protected]",
RegionCode: "us-central1",
Labels: map[string]string{
"env": "staging",
"team.owner": "devops",
},
},
},
expectedAttr: map[string]any{
string(semconv.ServerPortKey): int64(8080),
string(semconv.ServerAddressKey): "10.0.0.1",
gcpAuditDestinationPrincipal: "serviceAccount:[email protected]",
gcpAuditDestinationRegionCode: "us-central1",
gcpAuditDestinationLabels: map[string]any{
"env": "staging",
"team.owner": "devops",
},
},
},
"destination attributes - invalid port format": {
metadata: &requestMetadata{
DestinationAttributes: &destinationAttributes{
Port: "invalid",
},
},
expectsErr: "failed to add destination port",
},
}

for name, tt := range tests {
t.Run(name, func(t *testing.T) {
t.Parallel()
attr := pcommon.NewMap()
handleRequestMetadata(tt.metadata, attr)
err := handleRequestMetadata(tt.metadata, attr)
if tt.expectsErr != "" {
require.ErrorContains(t, err, tt.expectsErr)
return
}
require.NoError(t, err)
require.Equal(t, tt.expectedAttr, attr.AsRaw())
})
}
Expand Down
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