sessiongurad/CHANGELOG.md

Changelog

v0.5.2 PKCE / logout hotfix

• Added PKCE S256 (code_challenge / code_verifier) to both SessionGuard OIDC authorization-code flows.
• Fixed the Go 1.22+ ServeMux root route conflict by registering GET /{$}.
• Added RP-initiated logout for the primary Director/Admin OIDC flow using the discovered end_session_endpoint.
• Guacamole access logout now sends client_id on every end-session request and id_token_hint when available.
• Added oidc.logout_redirect_url and documented Pocket ID Logout Callback URL requirements.

0.5.2 — Public EdgeGuard security layer

• Added sessionguard-edgeguard, a dependency-free Go edge pre-check for the public Caddy host.
• Static IPv4/IPv6/CIDR blacklist with automatic reload.
• Global and per-IP token-bucket rate limiting plus endpoint-specific OIDC/login limits.
• NAT-safe defaults: ordinary rate-limit hits do not automatically ban a shared public address.
• Scanner/exploit path detection and persistent temporary auto-bans for clearly hostile behavior.
• Bounded per-IP state table prevents rotating-source floods from causing unbounded memory growth; ban persistence is write-debounced to avoid I/O amplification.
• Blocks CONNECT/TRACE/TRACK, validates allowed public hosts and rejects malformed/oversized URIs.
• Local /healthz and Prometheus-style /metrics endpoints for EdgeGuard.
• Added hardened public Caddy deployment: strict SNI/Host matching, 10s header timeout, 64 KiB header ceiling, HTTP/1.1+HTTP/2 only and conservative response security headers.
• Caddy admin API is disabled on the dedicated edge; access logs use bounded file rotation and high-load sampling to reduce log-amplification risk.
• Public-VPS example pins Caddy 2.11.4 instead of an unqualified major tag.
• Public Caddy now hides SessionGuard /metrics and broker endpoints; Guacamole workers continue to use broker APIs directly over NetBird.
• Added a dedicated Dockerfile.edgeguard, public-VPS Compose stack and CI image publication.
• No Master/Agent protocol or database migration; Agent protocol remains version 4.

0.5.1 — Modal-first responsive Web UI

• Master-WebUI neu strukturiert: Terminalserver öffnen in einem großen responsiven Arbeitsdialog statt in einer langen Inline-Detailspalte.
• Serverdetails sind in Tabs für Übersicht, Sitzungen, Apps/Prozesse, Profile/Ereignisse und Konfiguration gegliedert.
• Farms und Published Resources werden als kompakte Karten dargestellt; Anlegen/Bearbeiten erfolgt in eigenen Modals.
• Resource-Editor behält RemoteApp-/Agent-Managed-Felder und dynamische Sichtbarkeit vollständig bei.
• Agent-WebUI bündelt RemoteApps, Profil-Pipeline und Aktivitätslog in einer tab-basierten Betriebsansicht.
• Lokale Agent-Policy wird in einem responsiven Modal bearbeitet und zeigt einen sichtbaren Dirty-State; die Übersichtsseite zeigt nur eine kompakte Policy-Zusammenfassung.
• Mobile Modals wechseln auf Vollbild, Tabellen bleiben horizontal scrollbar, Formulare reduzieren sich responsiv auf eine Spalte.
• Live-Refresh/Dirty-Guards bleiben erhalten; offene Policy-Eingaben werden weiterhin nicht vom 5-Sekunden-Refresh überschrieben.
• Keine neue Runtime oder Build-Chain: weiterhin ausschließlich eingebettetes HTML/CSS/Vanilla-JavaScript.
• Agent-Protokoll bleibt Version 4; keine Datenbank- oder API-Migration erforderlich.

0.5.0 — Integrated Guacamole Access Auth

• SessionGuard Master now provides /auth/verify as a Traefik ForwardAuth endpoint for Guacamole.
• Added a dedicated PocketID/OIDC access_auth flow, independent from the Master administration login.
• Added opaque server-side access sessions persisted in the existing control-plane store; only the SHA-256 browser-token hash is used as the lookup key.
• Added strict X-Guacamole-User emission only for valid access sessions, group restrictions and allowed return-host validation.
• Added RP-initiated OIDC logout using the discovered end_session_endpoint.
• Added OIDC Back-Channel Logout with signature/issuer/audience/event/iat/jti validation and replay protection.
• Added concurrent-safe per-flow OIDC state cookies and external-prefix-aware callback cookie paths.
• Guacamole extension now ships a framework-free JS helper which redirects Guacamole logout into full SessionGuard/PocketID logout and periodically detects revoked/expired access sessions.
• Added Traefik header-scrubbing/ForwardAuth deployment guidance and migration away from traefik-forward-auth.
• Agent protocol remains version 4; no Agent data/schema migration is required.

0.4.1 — RemoteApp PowerShell/CLIXML robustness

• RemoteApp PowerShell execution now keeps stderr separate from JSON stdout.
• Suppresses PowerShell progress/information/verbose/debug/warning streams for machine-readable RemoteApp calls.
• Forces UTF-8 console output where supported.
• JSON decoder defensively extracts the first valid JSON object/array and tolerates CLIXML/banner noise before or after the payload.
• Added regression tests for the #< CLIXML contamination observed on Windows PowerShell 5.1.
• Protocol remains version 4; no Master/Agent schema migration is required.

0.4.0 — Agent-managed RemoteApps

• Added a farm-scoped RemoteApp desired-state model to Published Resources.
• Windows Agent discovers RemoteApps through root\CIMv2\TerminalServices / Win32_TSPublishedApplication.
• Optional Agent-managed publication creates/updates aliases, executable/icon settings and command-line policy through the Terminal Services WMI provider.
• Reconciliation deletes only aliases originally created by SessionGuard; pre-existing/manual RemoteApps remain in place if management is later disabled.
• Agent heartbeat reports per-app executable, publication, ownership, sync and error state.
• Managed RemoteApps are brokered fail-closed per host until the Agent reports published + path_exists + in_sync.
• Master WebUI now exposes application path, alias, icon, command-line policy and per-farm readiness.
• Agent WebUI now includes a RemoteApps inventory/status view.
• Protocol version increased from 3 to 4; Master and Agent must be upgraded together.
• No Node.js/npm/frontend framework or build step introduced.

0.3.4 — Modern Web UI

• Master- und Agent-WebUI vollständig modernisiert, weiterhin ohne Framework oder Build-Schritt.
• Responsive Sidebar-Navigation mit Mobile-Menü und Scroll-Tracking.
• Dark-/Light-Theme mit lokaler Browser-Präferenz.
• Neue Dashboard-Karten, Panel-Hierarchie, Status-Badges, moderne Formulare/Switches und Tabellen.
• Live-Bereiche und Editoren bleiben weiterhin getrennt; automatische Refreshes überschreiben keine Eingaben.
• Verbesserte Darstellung für Farms, Broker, Published Resources, Director, Alerts, Audit und lokale Agent-Ansichten.
• Keine neue Runtime-Abhängigkeit: HTML/CSS/Vanilla-JavaScript bleiben direkt in den Go-Binaries eingebettet.

0.3.3

• Fix: Master-WebUI definiert und aktualisiert agentCache, bevor die Farm-Mitglieder berechnet werden.
• Behebt ReferenceError: agentCache is not defined in der Farm-/Broker-Ansicht.
• Die Farm-Agent-Anzahl verwendet weiterhin dieselbe Membership-Logik wie der Broker (farm.agent_ids, agent.farm_ids, required_tags).

0.3.2

• Fixed Farm member count in the Master WebUI. The table now uses the same membership rules as the broker: explicit farm.agent_ids, agent-side agent.farm_ids, and required_tags.
• Farm member names are available as a tooltip on the member count.

0.3.1 - Web UI editor stability

• Fixed Master live refresh replacing Farm, Resource and server-control forms every five seconds.
• Split live server metrics from editable server-control fields.
• Farm and Resource editors are mounted once; only their data tables and broker leases refresh.
• Added explicit reset/reload actions instead of implicit form replacement.
• Added Agent policy dirty-state protection and visible "Ungespeicherte Änderungen" state.
• Added explicit Agent policy reload with confirmation before discarding unsaved edits.
• Added Cache-Control: no-store, max-age=0 for the Web UI HTML and JavaScript.
• Added browser-level regression verification covering a full live-refresh cycle.

0.3.0 - Broker & Director production candidate

Broker and farm control

• Added logical Farms with explicit agent IDs, agent-side farm IDs and required-tag membership.
• Added Published Resources for desktop and RemoteApp mappings.
• Added health-aware broker with existing-session reconnect preference, leases and configurable global single-session behavior.
• Added strict farm isolation and fail-closed unknown/disabled-farm handling.
• Added online, drain, and maintenance server modes.
• Added restart_when_drained workflow.
• Added broker-specific API key and /api/v1/broker/resolve / /api/v1/broker/tokens APIs.
• Added Guacamole 1.6 extension using token injection instead of database rewriting.

Director

• Added WTS logon/connect/last-input and client-address telemetry where available.
• Added idle-time calculation and persistent disconnect timestamps.
• Added Windows process inventory per user session and process termination command.
• Added CPU, RAM and system-disk telemetry.
• Added RDP-listener/profile-store health checks and composite health score.
• Added indexed session history and observed logon/restore timing.
• Added configurable threshold alerts and generic webhook notifications.
• Extended Master UI with health, session/process control, logon telemetry, farms, resources, leases, alerts and policy rollback.

Enterprise control plane

• Added PostgreSQL production persistence and single-active-master advisory-lock protection.
• Split append-only audit/session history into indexed tables while keeping small control-plane state in JSONB.
• Added group-to-role RBAC.
• Added policy versioning/rollback for global, farm and agent policies.
• Added environment-secret overrides for database, enrollment, broker, OIDC and webhook credentials.
• Added hardened Docker deployment example.
• Added bounded agent telemetry/process heartbeat payloads.
• Bound queued process-termination commands to the observed RDS session and revalidated PID/session ownership before termination.

Fixes/hardening

• Farm policies now also apply to centrally selected members (agent_ids / required tags), not only agents with explicit local farm_ids.
• Broker never reuses an existing session from a different requested farm.
• Drain hosts are reconnect-only; maintenance hosts are excluded from both reconnect and new placement.
• Broker resources cannot silently fall through to a disabled/unknown farm.

0.2.0 - Profile & Session Lifecycle

• Added selected-folder profile backup/restore with transactional snapshot activation and history retention.
• Added backup-before-cleanup gating and retries.
• Added disconnected-session timeout with native WTS logoff and the same backup/cleanup pipeline.
• Added master queued session control and result audit.
• Added Windows service session-change wakeups.
• Added Prometheus metrics and profile/session operation documentation.

0.1.1

• Fixed Master editor refresh overwriting in-progress form input.
• Added persistent Dry-Run/activity log to local and Master UI.
• Added structured Templates editor and heartbeat transfer of active policy.

0.1.0

• Initial Windows Agent / Linux Master MVP with WTS inventory, delayed profile cleanup, templates, PocketID/OIDC and master-agent heartbeats.