j.foucher
9cea07d6be
DownloadManager - Parallel multi-segment download (default 8 connections, configurable up to 16) with per-segment Range requests. Bypasses OVH/Apache per-connection bandwidth throttling — typical speed-up ×4 to ×8 vs single connection. - Reporter task on a dedicated Task with Interlocked aggregate counter (no lock contention with workers). Reports speed/ETA every 250ms even mid-download, fixes the "speed only shows at install transition" bug. - Sparse file pre-allocation via FSCTL_SET_SPARSE before SetLength: no zero-fill, no SeManageVolumePrivilege, instant on any disk type. Removes 5-30s of preparation lag on HDD. - HEAD probe skipped (trust manifest size, signed Ed25519). Falls back to single-segment if first segment returns 200 instead of 206. - Resume URL comparison fixed: ignores HMAC querystring (?exp=&sig=) which changes per request, compares only host+path. Previously every resume started fresh because the old URL never matched the freshly signed one. - Auto-refresh signed URL on 403/410 mid-DL: SemaphoreSlim with 5s debounce so 8 simultaneous segment expirations trigger a single /api/download-url/ call. Slow-connection users (1 Mbps, 30+ hours for 14 GB) keep downloading transparently across multiple TTL cycles. - Per-version hashAlgorithm:none in manifest skips client SHA-256 verification (still relying on Ed25519 manifest signature + HMAC URL). - DangerButton style (red) added to Theme.xaml for the new cancel-resume action. IntegrityService - 16 MiB buffer (was 1 MiB), FileOptions.SequentialScan + Asynchronous, IncrementalHash (uses SHA-NI hardware extensions on .NET 8), double-buffering to overlap CPU and I/O. Typical 14 GB hash verification: 60-180s → 15-40s. HttpClient - MaxConnectionsPerServer=16, EnableMultipleHttp2Connections, HTTP/2 preferred, AutomaticDecompression=None (ZIPs are already compressed), 5min pooled connection lifetime. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
PS_Launcher
Launcher Windows pour l'application UE5 PROSERVE : gère plusieurs versions cohabitantes, téléchargement et installation de nouvelles versions depuis un serveur, validation de license, release notes.
Composants
src/— Solution C# / .NET 8 / WPF (Visual Studio 2022 + SDK .NET 8 requis)PSLauncher.App: UI WPF (style Epic Games Launcher)PSLauncher.Core: services (Manifest, Download, Install, Process…)PSLauncher.Models: DTOs partagés
server/— Code serveur PHP 8 (à déployer souswww/PS_Launcher/sur OVH mutualisé)
Démarrage rapide (dev)
dotnet build PS_Launcher.sln
dotnet run --project src/PSLauncher.App
Pour produire un binaire autonome distribuable (un seul .exe ~70 Mo) :
dotnet publish src/PSLauncher.App -c Release
# Sortie : src/PSLauncher.App/bin/Release/net8.0-windows/win-x64/publish/PSLauncher.exe
Configuration locale
Le launcher écrit sa config dans %LocalAppData%\PSLauncher\config.json au premier lancement.
Édite serverBaseUrl pour pointer vers ton serveur :
{
"serverBaseUrl": "https://ton-domaine.com/PS_Launcher/api",
"installRoot": "C:\\ASTERION\\GIT\\PS_Launcher\\ASTERION_VR"
}
État (roadmap)
- ✅ v0.1 — Scan + lancement de versions installées
- ✅ v0.2 — Manifest distant, download ZIP, install cohabitante, release notes Markdown
- ⏳ v0.3 — Reprise (HTTP Range), retry Polly, state.json
- ⏳ v0.4 — License (MySQL + Ed25519 + DPAPI)
- ⏳ v0.5 — Settings, suppression manuelle versions, toasts
- ⏳ v1.0 — Auto-update launcher, MSI installer
Voir le plan détaillé pour la roadmap complète.
Licence / interne
Repo interne ASTERION. Ne pas distribuer.