Files
netbird/proxy/internal/middleware/redaction.go
Maycon Santos b416063bcc [management,proxy] Agent network: per-account LLM gateway (policy, metering, multi-provider) (#6555)
* [agent-network] Shared proto, OpenAPI schema, and generated types

* [agent-network] Management: store, manager, synthesizer, policy engine, provider catalog, HTTP/gRPC API

Adds the account-scoped agent-network module: provider/policy/budget CRUD and
store, the reverse-proxy service synthesizer, policy selection + limit
enforcement, the provider catalog (incl. Vertex AI and AWS Bedrock entries),
and the management HTTP + proxy gRPC surfaces.

* [management] Fix agent-network proxy-peer fan-out on affected-peer recompute

The affected-peers resolver loaded only persisted reverse-proxy services, but
agent-network services are synthesized on demand and never persisted. As a
result the embedded proxy peer was never folded into the affected set when a
client's group changed, so the proxy received no network-map update for a newly
authorised client and rejected its handshake until a full resync (restart).

loadProxyServices now merges the synthesized agent-network services (injected
via a registration hook to avoid an import cycle), so proxy peers learn newly
authorised clients immediately.

* [proxy] Reverse-proxy middleware framework, chain, and request plumbing

The per-target middleware chain (slots, dispatcher, mutation gate, metadata
merger), body capture, access-log terminal sink, and the proxy wiring that
builds + runs chains for synthesized agent-network services.

* [proxy] LLM parsers, pricing, and builtin middlewares (OpenAI, Anthropic, Vertex AI, AWS Bedrock)

Request/response parsers and SSE/event-stream metering, the embedded pricing
table, and the builtin middleware set: request parser, router, policy
limit-check/record, cost meter, guardrail, identity inject, response parser.
Includes the path-routed providers — Google Vertex AI (keyfile:: service-account
OAuth minting) and AWS Bedrock (bearer auth, invoke/converse/streaming, optional
/bedrock prefix) — plus the Models allowlist and unmeterable-publisher deny.

* [proxy] IPv6 in-place apply and TCP accept-loop hardening on netstack listeners

* [agent-network] End-to-end test suite, module docs, and deployment preset

* [agent-network] Fix codespell typos and exclude false positives

- labelgen word pool: vermillion -> vermilion, racoon -> raccoon.
- codespell ignore list: add flate (Go compress/flate package), recordin
  (a test-local identifier), and unparseable (a valid alternative spelling used
  consistently across identifiers + a metadata-value constant).

* [management] Set LastSeen on injected proxy peer in realstack test (MySQL strict-mode)

The injected embedded proxy peer had a PeerStatus with a zero LastSeen, which
serializes to '0000-00-00' and is rejected by MySQL in strict mode (SQLite
tolerates it). Set LastSeen to a valid time so SaveAccount succeeds on both
engines.

* [agent-network] Remove e2e shell-script suite from this branch

The end-to-end shell scripts under scripts/e2e/ are maintained in a separate
testing suite and are not part of this change set.

* [agent-network] Polish module docs: remove internal review scaffolding, fix links, verify diagrams

Strip PR-review framing, commit references, absolute paths, and stale internal
references from the agent-network module docs; fix broken relative links; verify
all diagrams against the current architecture. Remove the internal AI-reviewer
prompt file.

* [management] Refine session expiration handling to support 3-state encoding for SSO deadlines

* [agent-network] Relocate agentnetwork package to internals/modules

Move management/server/agentnetwork (and its catalog/, labelgen/, types/
subpackages) to management/internals/modules/agentnetwork, alongside the
reverse-proxy module, and rewrite all importers. Pure relocation: package names,
the synthesizer + affectedpeers registration hook, and store access (shared
store.Store) are unchanged, so no import cycle is introduced (affectedpeers
still depends only on the agentnetwork/types leaf).

* [agent-network] Co-locate HTTP handlers in the module (RegisterEndpoints)

Move the agent-network HTTP handlers from server/http/handlers/agentnetwork into
the module at internals/modules/agentnetwork/handlers (package handlers) and
rename the entrypoint AddEndpoints -> RegisterEndpoints, matching the
reverse-proxy module convention. Wiring in http/handler.go updated accordingly.
2026-06-27 13:41:00 +02:00

80 lines
2.2 KiB
Go

package middleware
import (
"regexp"
"strings"
)
// Redaction scope: Scan handles the narrow, high-signal set of
// secrets we are comfortable masking with a regex. The intent is
// "make accidental leaks impossible to miss at a glance", not "be a
// DLP product". Contributors adding more patterns should weigh false
// positives carefully — a metadata value that over-redacts benign
// strings is strictly worse than one that misses a rare format.
var (
jwtRegex = regexp.MustCompile(`eyJ[A-Za-z0-9_-]{5,}\.[A-Za-z0-9_-]{5,}\.[A-Za-z0-9_-]{5,}`)
pemRegex = regexp.MustCompile(`-----BEGIN [A-Z ]+-----[\s\S]*?-----END [A-Z ]+-----`)
awsKeyRegex = regexp.MustCompile(`AKIA[0-9A-Z]{16}`)
bearerRegex = regexp.MustCompile(`(?i)\b(?:bearer|token|api[_-]?key|authorization)[\s:=]+([A-Za-z0-9_\-\.]{40,})`)
ccCandidateRgx = regexp.MustCompile(`\b(?:\d[ -]?){13,19}\b`)
)
// Scan redacts high-signal secret patterns from value. Matches are
// replaced with `[REDACTED:<kind>]`. Non-matching input is returned
// unchanged.
func Scan(value string) string {
if value == "" {
return value
}
result := value
result = pemRegex.ReplaceAllString(result, "[REDACTED:pem]")
result = jwtRegex.ReplaceAllString(result, "[REDACTED:jwt]")
result = awsKeyRegex.ReplaceAllString(result, "[REDACTED:aws_key]")
result = bearerRegex.ReplaceAllStringFunc(result, func(match string) string {
sub := bearerRegex.FindStringSubmatch(match)
if len(sub) < 2 {
return "[REDACTED:bearer]"
}
return strings.Replace(match, sub[1], "[REDACTED:bearer]", 1)
})
result = ccCandidateRgx.ReplaceAllStringFunc(result, func(match string) string {
digits := stripNonDigits(match)
if len(digits) < 13 || len(digits) > 19 {
return match
}
if !luhn(digits) {
return match
}
return "[REDACTED:cc]"
})
return result
}
func stripNonDigits(s string) string {
var b strings.Builder
b.Grow(len(s))
for _, r := range s {
if r >= '0' && r <= '9' {
b.WriteRune(r)
}
}
return b.String()
}
func luhn(digits string) bool {
sum := 0
alt := false
for i := len(digits) - 1; i >= 0; i-- {
n := int(digits[i] - '0')
if alt {
n *= 2
if n > 9 {
n -= 9
}
}
sum += n
alt = !alt
}
return sum%10 == 0
}