Snapshot-Explorer: Dateien zurueckholen, im Terminal und im Browser
Snapshots anzulegen half bisher nur halb - an die Daten darin kam man nur
ueber einen Rollback. Dafuer jetzt zwei Werkzeuge auf gemeinsamer Basis.
snapfs.py bindet einen Snapshot schreibgeschuetzt ein und liefert einen
gewoehnlichen Pfad; die Oberflaechen wissen dadurch nichts ueber Storages:
rbd (Ceph) rbd map pool/image@snap, bei nicht unterstuetzten
Image-Features faellt es auf rbd-nbd zurueck
zfspool Container ueber .zfs/snapshot, VMs ueber einen Klon
lvmthin/lvm die Snapshot-LV snap_<volume>_<snapname> aktivieren
dir/nfs/cifs qemu-nbd --load-snapshot (nur qcow2)
Gemountet wird mit ro,noload bzw. ro,norecovery,nouuid - Snapshots
laufender Gaeste haben fast immer ein unsauberes Journal. Alles Angelegte
steht in /run/pvesnap/explorer.json und laesst sich nach einem Absturz mit
"--cleanup" wieder abraeumen.
pvesnap-explorer: zwei Fenster wie im Midnight Commander, links der
Snapshot, rechts der lokale Rechner. Markieren, F5, Fortschrittsbalken,
ESC bricht ab, vorhandene Dateien werden abgefragt. In den Snapshot hinein
kann nicht kopiert werden. Geraetedateien und Sockets werden
uebersprungen, symbolische Verweise bleiben Verweise.
pvesnap-web: derselbe Inhalt im Browser, auch vom anderen Rechner.
Einzelne Dateien direkt, Verzeichnisse und Mehrfachauswahl als ZIP, das im
Strom erzeugt wird - ohne Zwischendatei auf der Platte. Zugang nur mit dem
beim Start ausgegebenen Schluessel; Pfade ausserhalb des Snapshots werden
abgewiesen; es wird ausschliesslich gelesen.
Nebenbei: die curses-Bausteine sind aus tui.py nach curses_util.py
gewandert, damit Editor und Explorer sie teilen.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
duffyduck
co-authored by
Claude Opus 5
Claude Opus 5
parent
1be13ad294
commit
f37a942fea
@@ -12,6 +12,11 @@ löscht. Alles wird über **eine INI-Datei** gesteuert, die sich auch bequem in
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* Läuft cluster-weit (alle Nodes) über `pvesh`
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* Läuft cluster-weit (alle Nodes) über `pvesh`
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* Nur Python-Standardbibliothek — keine zusätzlichen Pakete nötig
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* Nur Python-Standardbibliothek — keine zusätzlichen Pakete nötig
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Dazu zwei Werkzeuge, um wieder **an die Daten im Snapshot** zu kommen:
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* `pvesnap-explorer` — zwei Fenster im Terminal wie im Midnight Commander
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* `pvesnap-web` — im Browser durchsehen und herunterladen, auch vom anderen Rechner
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---
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---
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## Installation
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## Installation
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@@ -28,7 +33,9 @@ Das Skript legt an:
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| Pfad | Inhalt |
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| Pfad | Inhalt |
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|---|---|
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|---|---|
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| `/usr/lib/pvesnap/` | Programmcode |
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| `/usr/lib/pvesnap/` | Programmcode |
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| `/usr/local/bin/pvesnap` | Startbefehl |
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| `/usr/local/bin/pvesnap` | Dienst und Konfiguration |
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| `/usr/local/bin/pvesnap-explorer` | Zwei-Fenster-Explorer |
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| `/usr/local/bin/pvesnap-web` | Web-Oberfläche |
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| `/etc/pvesnap/pvesnap.conf` | Konfiguration (wird bei Updates **nicht** überschrieben) |
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| `/etc/pvesnap/pvesnap.conf` | Konfiguration (wird bei Updates **nicht** überschrieben) |
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| `/var/lib/pvesnap/state.json` | merkt sich die letzten Läufe |
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| `/var/lib/pvesnap/state.json` | merkt sich die letzten Läufe |
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| `/etc/systemd/system/pvesnap.service` | systemd-Unit |
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| `/etc/systemd/system/pvesnap.service` | systemd-Unit |
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@@ -320,20 +327,121 @@ oder ein abgebrochener Task, der die Sperre nicht freigegeben hat.
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---
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---
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## Dateien aus einem Snapshot holen
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Ein Snapshot ist kein Verzeichnis. Damit man hineinschauen kann, wird er
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**schreibgeschützt** als Blockgerät eingebunden und gemountet — je nach Storage
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unterschiedlich:
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| Storage | Weg hinein |
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|---|---|
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| `rbd` (Ceph) | `rbd map pool/image@snap`, bei nicht unterstützten Image-Features `rbd-nbd` |
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| `zfspool` | Container direkt über `.zfs/snapshot/…`, VMs über einen temporären Klon |
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| `lvmthin`, `lvm` | die Snapshot-LV `snap_<volume>_<snapname>` aktivieren |
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| `dir`, `nfs`, `cifs` | `qemu-nbd --load-snapshot` (nur qcow2) |
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Danach werden Partitionen erkannt und mit `ro,noload` bzw. `ro,norecovery,nouuid`
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gemountet — Snapshots laufender Gäste haben fast immer ein unsauberes Journal,
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ohne diese Optionen würde der Kernel hineinschreiben wollen.
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Aufgeräumt wird beim Beenden automatisch. Bleibt nach einem Absturz etwas
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hängen:
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```bash
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pvesnap-explorer --cleanup
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```
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### `pvesnap-explorer` — zwei Fenster im Terminal
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```bash
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pvesnap-explorer # Gast und Snapshot auswählen
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pvesnap-explorer 802 # Snapshot von VM 802 auswählen
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pvesnap-explorer 802 <snapname> # direkt öffnen
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pvesnap-explorer --path /mnt/x # beliebiges Verzeichnis (zum Ausprobieren)
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```
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Links der Snapshot, rechts der lokale Rechner:
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| Taste | |
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|---|---|
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| `Tab` | Fenster wechseln |
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| `Pfeiltasten`, `Enter` | bewegen, Verzeichnis öffnen oder Datei ansehen |
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| `Backspace` | ein Verzeichnis hoch |
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| `Leertaste` | markieren; `*` umkehren, `a` alle, `u` keine |
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| `F5` / `c` | Markiertes ins andere Fenster kopieren |
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| `F3` / `v` | Datei ansehen (Text oder Hex) |
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| `F7` / `n` | neues Verzeichnis (nur lokal) |
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| `F6` / `g` | Verzeichnis direkt eingeben |
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| `F2` / `m` | anderes Dateisystem des Snapshots wählen |
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| `F10` / `q` | beenden |
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Kopiert wird immer vom aktiven ins andere Fenster — in den Snapshot hinein geht
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nichts, er ist schreibgeschützt. Beim Kopieren gibt es einen Fortschrittsbalken,
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`ESC` bricht ab; vorhandene Dateien werden abgefragt (`ja` / `nein` / `alle` /
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`keine`). Gerätedateien und Sockets werden übersprungen, symbolische Verweise
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bleiben Verweise.
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### `pvesnap-web` — im Browser herunterladen
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```bash
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pvesnap-web # Gast und Snapshot im Browser wählen
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pvesnap-web 802 <snapname> # diesen Snapshot gleich öffnen
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pvesnap-web --port 8080 --bind 10.0.0.5
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```
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Beim Start wird eine Adresse mit Zugangsschlüssel ausgegeben:
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```
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http://192.168.1.50:8823/?token=zGo-1RW7eYyf_YCPvTIOLtOp
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```
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Diese Adresse an einem anderen Rechner im Browser öffnen. Dort lässt sich der
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Snapshot durchklicken; **einzelne Dateien** werden direkt heruntergeladen,
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**Verzeichnisse und Mehrfachauswahl** als ZIP (im Strom erzeugt, es wird nichts
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zwischengespeichert).
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Zur Sicherheit:
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* Ohne den Zugangsschlüssel gibt es nichts zu sehen (er wandert nach dem ersten
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Aufruf in ein Cookie). `--no-token` schaltet das ab — nur in einem Netz
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benutzen, dem du vertraust.
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* Es wird ausschließlich **gelesen**. Die Oberfläche kann nichts ändern oder
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löschen.
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* Pfade außerhalb des eingebundenen Snapshots werden abgewiesen — über die
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Adresszeile kommt man nicht an den Rest des Hosts.
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* Die Verbindung ist unverschlüsseltes HTTP. Über unsichere Netze besser einen
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SSH-Tunnel legen:
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`ssh -L 8823:localhost:8823 root@pve` und dann `pvesnap-web --bind 127.0.0.1`.
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Beendet wird mit `Strg-C`; der Snapshot wird dabei wieder ausgehängt.
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---
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## Aufbau
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## Aufbau
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```
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```
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pvesnap/
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pvesnap/
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config.py INI lesen und schreiben, Gruppen- und Globaleinstellungen
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config.py INI lesen und schreiben, Gruppen- und Globaleinstellungen
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schedule.py Berechnung des nächsten Termins
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schedule.py Berechnung des nächsten Termins
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naming.py Namensschema und Beschreibungs-Vorlagen
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naming.py Namensschema und Beschreibungs-Vorlagen
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proxmox.py pvesh-Anbindung (Inventar, Snapshots anlegen/löschen)
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proxmox.py pvesh-Anbindung (Inventar, Snapshots anlegen/löschen)
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engine.py Auswahl der Gäste, Anlegen, Aufräumen
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engine.py Auswahl der Gäste, Anlegen, Aufräumen
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daemon.py Hauptschleife, Signale, Sperren
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daemon.py Hauptschleife, Signale, Sperren
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state.py merkt sich die letzten Läufe
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state.py merkt sich die letzten Läufe
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tui.py ncurses-Editor
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preflight.py prüft die Umgebung (root, /etc/pve beschreibbar, /root)
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cli.py Kommandozeile
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cli.py Kommandozeile
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curses_util.py gemeinsame curses-Bausteine
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tui.py ncurses-Konfigurationseditor
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snapfs.py Snapshots einbinden und mounten (rbd/zfs/lvm/qcow2)
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explorer.py Zwei-Fenster-Explorer im Terminal
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web/ Web-Oberfläche zum Herunterladen
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server.py HTTP-Server, ZIP im Strom, Zugangsschlüssel
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assets.py Stylesheet und HTML-Gerüst
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config/pvesnap.conf.example
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config/pvesnap.conf.example
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systemd/pvesnap.service
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systemd/pvesnap.service
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install.sh uninstall.sh
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install.sh uninstall.sh
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```
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```
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Der Dienst (`pvesnap`) und die beiden Explorer teilen sich `proxmox.py`;
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`snapfs.py` liefert beiden Oberflächen einen ganz gewöhnlichen Pfad, sodass
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Explorer und Web-Oberfläche nichts über Ceph, ZFS oder LVM wissen müssen.
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+14
-4
@@ -61,13 +61,19 @@ cp -r "${SRC}/pvesnap" "${LIB_DIR}/pvesnap"
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find "${LIB_DIR}/pvesnap" -name '__pycache__' -type d -exec rm -rf {} + 2>/dev/null || true
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find "${LIB_DIR}/pvesnap" -name '__pycache__' -type d -exec rm -rf {} + 2>/dev/null || true
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chmod -R go-w "${LIB_DIR}/pvesnap"
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chmod -R go-w "${LIB_DIR}/pvesnap"
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info "Installiere Startbefehl ${BIN}"
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info "Installiere Startbefehle"
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cat > "${BIN}" <<EOF
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install_command() { # $1 = Befehlsname, $2 = Python-Modul
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cat > "/usr/local/bin/$1" <<EOF
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#!/bin/sh
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#!/bin/sh
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# von install.sh erzeugt
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# von install.sh erzeugt
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PYTHONPATH="${LIB_DIR}\${PYTHONPATH:+:\$PYTHONPATH}" exec /usr/bin/python3 -m pvesnap "\$@"
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PYTHONPATH="${LIB_DIR}\${PYTHONPATH:+:\$PYTHONPATH}" exec /usr/bin/python3 -m $2 "\$@"
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EOF
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EOF
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chmod 0755 "${BIN}"
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chmod 0755 "/usr/local/bin/$1"
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info " /usr/local/bin/$1"
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}
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install_command pvesnap pvesnap
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install_command pvesnap-explorer pvesnap.explorer
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install_command pvesnap-web pvesnap.web
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# --- Konfiguration ----------------------------------------------------
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# --- Konfiguration ----------------------------------------------------
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install -d -m 0755 "${CONF_DIR}" "${STATE_DIR}" "${DOC_DIR}"
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install -d -m 0755 "${CONF_DIR}" "${STATE_DIR}" "${DOC_DIR}"
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@@ -122,6 +128,10 @@ Fertig.
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Testlauf ohne Aenderung : pvesnap run --force --dry-run
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Testlauf ohne Aenderung : pvesnap run --force --dry-run
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Nach Aenderungen : systemctl reload pvesnap
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Nach Aenderungen : systemctl reload pvesnap
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Protokoll : journalctl -u pvesnap -f
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Protokoll : journalctl -u pvesnap -f
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Dateien aus einem Snapshot holen:
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pvesnap-explorer zwei Fenster wie im Midnight Commander
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pvesnap-web im Browser durchsehen und herunterladen
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EOF
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EOF
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if [ "${NEW_CONFIG:-0}" -eq 1 ]; then
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if [ "${NEW_CONFIG:-0}" -eq 1 ]; then
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@@ -0,0 +1,227 @@
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"""Gemeinsame curses-Bausteine fuer Konfigurationseditor und Explorer."""
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from __future__ import annotations
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import curses
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C_HEADER, C_FOOTER, C_SEL, C_WARN, C_OK, C_DIM, C_DIR, C_MARK = 1, 2, 3, 4, 5, 6, 7, 8
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def init_colors():
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try:
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curses.start_color()
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curses.use_default_colors()
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curses.init_pair(C_HEADER, curses.COLOR_WHITE, curses.COLOR_BLUE)
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curses.init_pair(C_FOOTER, curses.COLOR_BLACK, curses.COLOR_WHITE)
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curses.init_pair(C_SEL, curses.COLOR_BLACK, curses.COLOR_CYAN)
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curses.init_pair(C_WARN, curses.COLOR_WHITE, curses.COLOR_RED)
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curses.init_pair(C_OK, curses.COLOR_BLACK, curses.COLOR_GREEN)
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curses.init_pair(C_DIM, -1, -1)
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curses.init_pair(C_DIR, curses.COLOR_CYAN, -1)
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curses.init_pair(C_MARK, curses.COLOR_YELLOW, -1)
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except curses.error:
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pass
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# ---------------------------------------------------------------------------
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# Zeichnen
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# ---------------------------------------------------------------------------
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def put(win, y, x, text, attr=0):
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"""addstr, das bei zu kleinem Terminal nicht abstuerzt."""
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height, width = win.getmaxyx()
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if y < 0 or y >= height or x >= width:
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return
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try:
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win.addstr(y, x, str(text)[: max(0, width - x - 1)], attr)
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except curses.error:
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pass
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def fill(win, y, text, attr):
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height, width = win.getmaxyx()
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if y < 0 or y >= height:
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return
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try:
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win.addstr(y, 0, str(text).ljust(width - 1)[: width - 1], attr)
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except curses.error:
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pass
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def fill_row(win, y, x, text, width, attr):
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put(win, y, x, str(text).ljust(max(0, width - x - 1))[: max(0, width - x - 1)], attr)
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# ---------------------------------------------------------------------------
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# Tasten
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# ---------------------------------------------------------------------------
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def read_key(win):
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try:
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return win.get_wch()
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except curses.error:
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return None
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except KeyboardInterrupt:
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return "\x1b"
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def is_enter(key):
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return key in ("\n", "\r", curses.KEY_ENTER)
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def is_escape(key):
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return key == "\x1b"
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def is_backspace(key):
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return key in ("\x7f", "\b", "\x08", curses.KEY_BACKSPACE)
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def keybar(width, items):
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"""Tastenleiste als Liste von Zeilen, passend zur Breite des Terminals.
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Reicht der Platz nicht fuer eine Zeile, wird auf zwei Zeilen umgebrochen;
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bei ganz schmalen Terminals bleiben nur noch die Tasten uebrig.
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"""
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def join(entries, index):
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return " | ".join("%s %s" % (entry[0], entry[index]) for entry in entries)
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long_text = join(items, 1)
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if len(long_text) + 2 <= width:
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return [long_text]
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half = (len(items) + 1) // 2
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first, second = join(items[:half], 1), join(items[half:], 1)
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if max(len(first), len(second)) + 2 <= width:
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return [first, second]
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short_text = join(items, 2)
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if len(short_text) + 2 <= width:
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return [short_text]
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first, second = join(items[:half], 2), join(items[half:], 2)
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if max(len(first), len(second)) + 2 <= width:
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||||||
|
return [first, second]
|
||||||
|
return [" ".join(entry[0] for entry in items)]
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Dialoge
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def message(win, text, error=False):
|
||||||
|
height, _ = win.getmaxyx()
|
||||||
|
attr = curses.color_pair(C_WARN if error else C_OK) | curses.A_BOLD
|
||||||
|
fill(win, height - 2, " " + str(text) + " [Taste druecken]", attr)
|
||||||
|
win.refresh()
|
||||||
|
read_key(win)
|
||||||
|
|
||||||
|
|
||||||
|
def confirm(win, question):
|
||||||
|
height, _ = win.getmaxyx()
|
||||||
|
fill(win, height - 2, " %s [j/n]" % question,
|
||||||
|
curses.color_pair(C_WARN) | curses.A_BOLD)
|
||||||
|
win.refresh()
|
||||||
|
while True:
|
||||||
|
key = read_key(win)
|
||||||
|
if key in ("j", "J", "y", "Y"):
|
||||||
|
return True
|
||||||
|
if key in ("n", "N") or is_escape(key):
|
||||||
|
return False
|
||||||
|
|
||||||
|
|
||||||
|
def ask(win, question, answers, default=None):
|
||||||
|
"""Mehrfachauswahl in einer Zeile. `answers` ist z.B. 'jnak'."""
|
||||||
|
height, _ = win.getmaxyx()
|
||||||
|
fill(win, height - 2, " %s" % question, curses.color_pair(C_WARN) | curses.A_BOLD)
|
||||||
|
win.refresh()
|
||||||
|
while True:
|
||||||
|
key = read_key(win)
|
||||||
|
if isinstance(key, str) and key.lower() in answers:
|
||||||
|
return key.lower()
|
||||||
|
if is_escape(key):
|
||||||
|
return default
|
||||||
|
|
||||||
|
|
||||||
|
def prompt(win, label, initial=""):
|
||||||
|
"""Einzeilige Eingabe am unteren Rand. None = abgebrochen."""
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
buffer = list(str(initial))
|
||||||
|
curses.curs_set(1)
|
||||||
|
try:
|
||||||
|
while True:
|
||||||
|
text = "".join(buffer)
|
||||||
|
label_text = " %s: " % label
|
||||||
|
visible = width - len(label_text) - 2
|
||||||
|
shown = text[-visible:] if visible > 0 and len(text) > visible else text
|
||||||
|
fill(win, height - 2, label_text + shown, curses.color_pair(C_SEL))
|
||||||
|
try:
|
||||||
|
win.move(height - 2, min(width - 2, len(label_text) + len(shown)))
|
||||||
|
except curses.error:
|
||||||
|
pass
|
||||||
|
win.refresh()
|
||||||
|
|
||||||
|
key = read_key(win)
|
||||||
|
if key is None:
|
||||||
|
continue
|
||||||
|
if is_enter(key):
|
||||||
|
return "".join(buffer).strip()
|
||||||
|
if is_escape(key):
|
||||||
|
return None
|
||||||
|
if is_backspace(key):
|
||||||
|
if buffer:
|
||||||
|
buffer.pop()
|
||||||
|
continue
|
||||||
|
if key == "\x15": # Strg-U
|
||||||
|
buffer = []
|
||||||
|
continue
|
||||||
|
if isinstance(key, str) and key.isprintable():
|
||||||
|
buffer.append(key)
|
||||||
|
finally:
|
||||||
|
curses.curs_set(0)
|
||||||
|
|
||||||
|
|
||||||
|
def choose(win, title, entries, current=0):
|
||||||
|
"""Kleines Auswahlfenster. entries: Liste von (wert, beschriftung)."""
|
||||||
|
if not entries:
|
||||||
|
return None
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
box_h = min(len(entries) + 4, height - 2)
|
||||||
|
box_w = min(max([len(title)] + [len(e[1]) for e in entries]) + 8, width - 2)
|
||||||
|
top = max(0, (height - box_h) // 2)
|
||||||
|
left = max(0, (width - box_w) // 2)
|
||||||
|
box = curses.newwin(box_h, box_w, top, left)
|
||||||
|
box.keypad(True)
|
||||||
|
index = max(0, min(current, len(entries) - 1))
|
||||||
|
scroll = 0
|
||||||
|
rows = max(1, box_h - 4)
|
||||||
|
|
||||||
|
while True:
|
||||||
|
if index < scroll:
|
||||||
|
scroll = index
|
||||||
|
if index >= scroll + rows:
|
||||||
|
scroll = index - rows + 1
|
||||||
|
box.erase()
|
||||||
|
box.box()
|
||||||
|
put(box, 0, 2, " %s " % title, curses.A_BOLD)
|
||||||
|
for row in range(rows):
|
||||||
|
position = scroll + row
|
||||||
|
if position >= len(entries):
|
||||||
|
break
|
||||||
|
attr = curses.color_pair(C_SEL) if position == index else 0
|
||||||
|
put(box, row + 2, 2, " " + entries[position][1].ljust(box_w - 5), attr)
|
||||||
|
box.refresh()
|
||||||
|
|
||||||
|
key = read_key(box)
|
||||||
|
if key in (curses.KEY_UP, "k"):
|
||||||
|
index = (index - 1) % len(entries)
|
||||||
|
elif key in (curses.KEY_DOWN, "j"):
|
||||||
|
index = (index + 1) % len(entries)
|
||||||
|
elif key == curses.KEY_NPAGE:
|
||||||
|
index = min(len(entries) - 1, index + rows)
|
||||||
|
elif key == curses.KEY_PPAGE:
|
||||||
|
index = max(0, index - rows)
|
||||||
|
elif is_enter(key):
|
||||||
|
return entries[index][0]
|
||||||
|
elif is_escape(key) or key == "q":
|
||||||
|
return None
|
||||||
@@ -0,0 +1,930 @@
|
|||||||
|
"""pvesnap-explorer - Dateien aus einem Snapshot holen.
|
||||||
|
|
||||||
|
Zwei Fenster wie im Midnight Commander: links der geoeffnete Snapshot
|
||||||
|
(schreibgeschuetzt), rechts der lokale Rechner. Markieren, F5 - fertig.
|
||||||
|
|
||||||
|
pvesnap-explorer Gast und Snapshot auswaehlen
|
||||||
|
pvesnap-explorer 802 Snapshot von VM 802 auswaehlen
|
||||||
|
pvesnap-explorer 802 <snapname> direkt oeffnen
|
||||||
|
pvesnap-explorer --path /mnt beliebiges Verzeichnis (ohne Proxmox)
|
||||||
|
pvesnap-explorer --cleanup Reste eines Absturzes aufraeumen
|
||||||
|
"""
|
||||||
|
|
||||||
|
from __future__ import annotations
|
||||||
|
|
||||||
|
import argparse
|
||||||
|
import curses
|
||||||
|
import errno
|
||||||
|
import logging
|
||||||
|
import os
|
||||||
|
import shutil
|
||||||
|
import stat
|
||||||
|
import sys
|
||||||
|
import time
|
||||||
|
from dataclasses import dataclass, field
|
||||||
|
from datetime import datetime
|
||||||
|
|
||||||
|
from . import __version__
|
||||||
|
from .curses_util import (C_DIM, C_DIR, C_FOOTER, C_HEADER, C_MARK, C_OK, C_SEL,
|
||||||
|
C_WARN, ask, choose, confirm, fill, init_colors, is_enter,
|
||||||
|
is_escape, keybar, message, prompt, put, read_key)
|
||||||
|
from .proxmox import Proxmox, ProxmoxError, pvesh_available
|
||||||
|
from .snapfs import (Session, SnapfsError, cleanup_leftovers, human_bytes,
|
||||||
|
list_snapshots)
|
||||||
|
from .util import truncate
|
||||||
|
|
||||||
|
log = logging.getLogger("pvesnap.explorer")
|
||||||
|
|
||||||
|
KEYS = [
|
||||||
|
("Tab", "Fenster", "Fenst."),
|
||||||
|
("Enter", "Oeffnen", "Oeffn."),
|
||||||
|
("Leer", "Markieren", "Mark."),
|
||||||
|
("F5", "Kopieren", "Kopie"),
|
||||||
|
("F3", "Ansehen", "Ansehen"),
|
||||||
|
("F7", "Neuer Ordner", "Ordner"),
|
||||||
|
("F2", "Laufwerk", "Laufw."),
|
||||||
|
("F10", "Ende", "Ende"),
|
||||||
|
]
|
||||||
|
|
||||||
|
COPY_BUFFER = 1024 * 1024
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Eintraege und Fenster
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
@dataclass
|
||||||
|
class Entry:
|
||||||
|
name: str
|
||||||
|
path: str
|
||||||
|
is_dir: bool = False
|
||||||
|
size: int = 0
|
||||||
|
mtime: float = 0.0
|
||||||
|
is_link: bool = False
|
||||||
|
is_special: bool = False
|
||||||
|
is_up: bool = False
|
||||||
|
|
||||||
|
@property
|
||||||
|
def sort_key(self):
|
||||||
|
return (0 if self.is_up else (1 if self.is_dir else 2), self.name.lower())
|
||||||
|
|
||||||
|
|
||||||
|
@dataclass
|
||||||
|
class Pane:
|
||||||
|
path: str
|
||||||
|
root: str = "/"
|
||||||
|
readonly: bool = False
|
||||||
|
title: str = ""
|
||||||
|
entries: list = field(default_factory=list)
|
||||||
|
index: int = 0
|
||||||
|
top: int = 0
|
||||||
|
marks: set = field(default_factory=set)
|
||||||
|
error: str = ""
|
||||||
|
|
||||||
|
def reload(self):
|
||||||
|
previous = self.current.name if self.entries and 0 <= self.index < len(self.entries) else ""
|
||||||
|
self.entries = []
|
||||||
|
self.error = ""
|
||||||
|
|
||||||
|
real = os.path.realpath(self.path)
|
||||||
|
if real != os.path.realpath(self.root):
|
||||||
|
parent = os.path.dirname(real) or "/"
|
||||||
|
self.entries.append(Entry(name="..", path=parent, is_dir=True, is_up=True))
|
||||||
|
|
||||||
|
try:
|
||||||
|
with os.scandir(self.path) as scan:
|
||||||
|
for item in scan:
|
||||||
|
self.entries.append(self._entry(item))
|
||||||
|
except OSError as exc:
|
||||||
|
self.error = "%s: %s" % (self.path, exc.strerror or exc)
|
||||||
|
|
||||||
|
self.entries.sort(key=lambda e: e.sort_key)
|
||||||
|
self.marks = {name for name in self.marks
|
||||||
|
if any(e.name == name for e in self.entries)}
|
||||||
|
self.index = 0
|
||||||
|
for position, entry in enumerate(self.entries):
|
||||||
|
if entry.name == previous:
|
||||||
|
self.index = position
|
||||||
|
break
|
||||||
|
self._clamp()
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _entry(item):
|
||||||
|
try:
|
||||||
|
info = item.stat(follow_symlinks=False)
|
||||||
|
mode = info.st_mode
|
||||||
|
is_link = stat.S_ISLNK(mode)
|
||||||
|
if is_link:
|
||||||
|
try:
|
||||||
|
target = item.stat(follow_symlinks=True)
|
||||||
|
is_dir = stat.S_ISDIR(target.st_mode)
|
||||||
|
except OSError:
|
||||||
|
is_dir = False
|
||||||
|
special = False
|
||||||
|
else:
|
||||||
|
is_dir = stat.S_ISDIR(mode)
|
||||||
|
special = not (is_dir or stat.S_ISREG(mode))
|
||||||
|
return Entry(name=item.name, path=item.path, is_dir=is_dir,
|
||||||
|
size=0 if is_dir else info.st_size, mtime=info.st_mtime,
|
||||||
|
is_link=is_link, is_special=special)
|
||||||
|
except OSError:
|
||||||
|
return Entry(name=item.name, path=item.path)
|
||||||
|
|
||||||
|
# -- Navigation -------------------------------------------------------
|
||||||
|
|
||||||
|
@property
|
||||||
|
def current(self):
|
||||||
|
if 0 <= self.index < len(self.entries):
|
||||||
|
return self.entries[self.index]
|
||||||
|
return Entry(name="", path=self.path)
|
||||||
|
|
||||||
|
def _clamp(self):
|
||||||
|
self.index = max(0, min(self.index, max(0, len(self.entries) - 1)))
|
||||||
|
|
||||||
|
def move(self, delta):
|
||||||
|
self.index += delta
|
||||||
|
self._clamp()
|
||||||
|
|
||||||
|
def open_current(self):
|
||||||
|
entry = self.current
|
||||||
|
if not entry.is_dir:
|
||||||
|
return False
|
||||||
|
target = os.path.realpath(entry.path)
|
||||||
|
root = os.path.realpath(self.root)
|
||||||
|
if not (target == root or target.startswith(root + os.sep)):
|
||||||
|
return False # nicht aus dem Snapshot herauslaufen
|
||||||
|
self.path = target
|
||||||
|
self.marks.clear()
|
||||||
|
self.reload()
|
||||||
|
return True
|
||||||
|
|
||||||
|
def go(self, path):
|
||||||
|
if os.path.isdir(path):
|
||||||
|
self.path = os.path.realpath(path)
|
||||||
|
self.marks.clear()
|
||||||
|
self.reload()
|
||||||
|
return True
|
||||||
|
return False
|
||||||
|
|
||||||
|
def toggle_mark(self):
|
||||||
|
entry = self.current
|
||||||
|
if entry.is_up or not entry.name:
|
||||||
|
return
|
||||||
|
if entry.name in self.marks:
|
||||||
|
self.marks.discard(entry.name)
|
||||||
|
else:
|
||||||
|
self.marks.add(entry.name)
|
||||||
|
|
||||||
|
def selection(self):
|
||||||
|
"""Markierte Eintraege, sonst der Eintrag unter dem Balken."""
|
||||||
|
if self.marks:
|
||||||
|
return [e for e in self.entries if e.name in self.marks]
|
||||||
|
entry = self.current
|
||||||
|
return [] if (entry.is_up or not entry.name) else [entry]
|
||||||
|
|
||||||
|
def free_space(self):
|
||||||
|
try:
|
||||||
|
stats = os.statvfs(self.path)
|
||||||
|
return stats.f_bavail * stats.f_frsize
|
||||||
|
except OSError:
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Kopieren
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
class Aborted(Exception):
|
||||||
|
"""Der Benutzer hat abgebrochen."""
|
||||||
|
|
||||||
|
|
||||||
|
class Copier:
|
||||||
|
"""Kopiert Dateien und Verzeichnisse mit Fortschritt und Abbruch."""
|
||||||
|
|
||||||
|
def __init__(self, win, progress):
|
||||||
|
self.win = win
|
||||||
|
self.progress = progress # Rueckruf(text, done, total)
|
||||||
|
self.total = 0
|
||||||
|
self.done = 0
|
||||||
|
self.overwrite = None # None | "alle" | "keine"
|
||||||
|
self.copied = 0
|
||||||
|
self.skipped = []
|
||||||
|
self.failed = []
|
||||||
|
|
||||||
|
# -- Groesse vorab ----------------------------------------------------
|
||||||
|
|
||||||
|
def measure(self, entries):
|
||||||
|
total = 0
|
||||||
|
for entry in entries:
|
||||||
|
if entry.is_dir and not entry.is_link:
|
||||||
|
for base, _dirs, files in os.walk(entry.path, onerror=None):
|
||||||
|
for name in files:
|
||||||
|
try:
|
||||||
|
info = os.lstat(os.path.join(base, name))
|
||||||
|
if stat.S_ISREG(info.st_mode):
|
||||||
|
total += info.st_size
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
elif not entry.is_special:
|
||||||
|
total += entry.size
|
||||||
|
self.total = total
|
||||||
|
return total
|
||||||
|
|
||||||
|
# -- Ausfuehren -------------------------------------------------------
|
||||||
|
|
||||||
|
def copy(self, entries, target):
|
||||||
|
for entry in entries:
|
||||||
|
self._copy_any(entry.path, os.path.join(target, entry.name))
|
||||||
|
|
||||||
|
def _copy_any(self, source, destination):
|
||||||
|
self._check_abort()
|
||||||
|
try:
|
||||||
|
info = os.lstat(source)
|
||||||
|
except OSError as exc:
|
||||||
|
self.failed.append("%s: %s" % (source, exc.strerror or exc))
|
||||||
|
return
|
||||||
|
|
||||||
|
if stat.S_ISLNK(info.st_mode):
|
||||||
|
self._copy_symlink(source, destination)
|
||||||
|
elif stat.S_ISDIR(info.st_mode):
|
||||||
|
self._copy_dir(source, destination)
|
||||||
|
elif stat.S_ISREG(info.st_mode):
|
||||||
|
self._copy_file(source, destination, info)
|
||||||
|
else:
|
||||||
|
# Geraetedateien, Sockets, FIFOs - im Gast-Dateisystem haeufig,
|
||||||
|
# ausserhalb aber sinnlos.
|
||||||
|
self.skipped.append("%s (Spezialdatei)" % source)
|
||||||
|
|
||||||
|
def _copy_symlink(self, source, destination):
|
||||||
|
try:
|
||||||
|
target = os.readlink(source)
|
||||||
|
if os.path.lexists(destination):
|
||||||
|
if not self._may_overwrite(destination):
|
||||||
|
return
|
||||||
|
os.remove(destination)
|
||||||
|
os.symlink(target, destination)
|
||||||
|
self.copied += 1
|
||||||
|
except OSError as exc:
|
||||||
|
self.failed.append("%s: %s" % (source, exc.strerror or exc))
|
||||||
|
|
||||||
|
def _copy_dir(self, source, destination):
|
||||||
|
try:
|
||||||
|
os.makedirs(destination, exist_ok=True)
|
||||||
|
except OSError as exc:
|
||||||
|
self.failed.append("%s: %s" % (destination, exc.strerror or exc))
|
||||||
|
return
|
||||||
|
try:
|
||||||
|
names = sorted(os.listdir(source))
|
||||||
|
except OSError as exc:
|
||||||
|
self.failed.append("%s: %s" % (source, exc.strerror or exc))
|
||||||
|
return
|
||||||
|
for name in names:
|
||||||
|
self._copy_any(os.path.join(source, name), os.path.join(destination, name))
|
||||||
|
try:
|
||||||
|
shutil.copystat(source, destination)
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
|
||||||
|
def _copy_file(self, source, destination, info):
|
||||||
|
if os.path.lexists(destination) and not self._may_overwrite(destination):
|
||||||
|
self.done += info.st_size
|
||||||
|
return
|
||||||
|
self.progress(os.path.basename(source), self.done, self.total)
|
||||||
|
try:
|
||||||
|
with open(source, "rb") as src, open(destination, "wb") as dst:
|
||||||
|
while True:
|
||||||
|
self._check_abort()
|
||||||
|
chunk = src.read(COPY_BUFFER)
|
||||||
|
if not chunk:
|
||||||
|
break
|
||||||
|
dst.write(chunk)
|
||||||
|
self.done += len(chunk)
|
||||||
|
self.progress(os.path.basename(source), self.done, self.total)
|
||||||
|
shutil.copystat(source, destination)
|
||||||
|
self.copied += 1
|
||||||
|
except Aborted:
|
||||||
|
self._remove_partial(destination)
|
||||||
|
raise
|
||||||
|
except OSError as exc:
|
||||||
|
self._remove_partial(destination)
|
||||||
|
if exc.errno == errno.ENOSPC:
|
||||||
|
raise SnapfsError("Kein Platz mehr auf dem Ziel-Dateisystem.")
|
||||||
|
self.failed.append("%s: %s" % (source, exc.strerror or exc))
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _remove_partial(path):
|
||||||
|
try:
|
||||||
|
os.remove(path)
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
|
||||||
|
# -- Rueckfragen ------------------------------------------------------
|
||||||
|
|
||||||
|
def _may_overwrite(self, destination):
|
||||||
|
if self.overwrite == "alle":
|
||||||
|
return True
|
||||||
|
if self.overwrite == "keine":
|
||||||
|
self.skipped.append("%s (vorhanden)" % destination)
|
||||||
|
return False
|
||||||
|
answer = ask(self.win,
|
||||||
|
"%s gibt es schon: [j]a ueberschreiben, [n]ein, "
|
||||||
|
"[a]lle, [k]eine" % truncate(os.path.basename(destination), 40),
|
||||||
|
"jnak", default="n")
|
||||||
|
if answer == "a":
|
||||||
|
self.overwrite = "alle"
|
||||||
|
return True
|
||||||
|
if answer == "k":
|
||||||
|
self.overwrite = "keine"
|
||||||
|
if answer == "j":
|
||||||
|
return True
|
||||||
|
self.skipped.append("%s (vorhanden)" % destination)
|
||||||
|
return False
|
||||||
|
|
||||||
|
def _check_abort(self):
|
||||||
|
self.win.nodelay(True)
|
||||||
|
try:
|
||||||
|
key = self.win.getch()
|
||||||
|
except curses.error:
|
||||||
|
key = -1
|
||||||
|
finally:
|
||||||
|
self.win.nodelay(False)
|
||||||
|
if key == 27: # ESC
|
||||||
|
raise Aborted()
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Oberflaeche
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
class Explorer:
|
||||||
|
def __init__(self, left, right, session=None, subtitle=""):
|
||||||
|
self.panes = [left, right]
|
||||||
|
self.active = 0
|
||||||
|
self.session = session
|
||||||
|
self.subtitle = subtitle
|
||||||
|
self.status = ""
|
||||||
|
|
||||||
|
@property
|
||||||
|
def source(self):
|
||||||
|
return self.panes[self.active]
|
||||||
|
|
||||||
|
@property
|
||||||
|
def target(self):
|
||||||
|
return self.panes[1 - self.active]
|
||||||
|
|
||||||
|
# -- Zeichnen ---------------------------------------------------------
|
||||||
|
|
||||||
|
def draw(self, win):
|
||||||
|
win.erase()
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
keys = keybar(width, KEYS)
|
||||||
|
list_top = 3
|
||||||
|
list_bottom = height - 3 - len(keys)
|
||||||
|
rows = max(1, list_bottom - list_top)
|
||||||
|
|
||||||
|
fill(win, 0, " pvesnap-explorer - %s" % self.subtitle,
|
||||||
|
curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
|
||||||
|
middle = width // 2
|
||||||
|
for row in range(1, list_bottom + 1):
|
||||||
|
put(win, row, middle, "│", curses.color_pair(C_DIM))
|
||||||
|
|
||||||
|
self._draw_pane(win, self.panes[0], 0, middle, list_top, rows, self.active == 0)
|
||||||
|
self._draw_pane(win, self.panes[1], middle + 1, width - middle - 2,
|
||||||
|
list_top, rows, self.active == 1)
|
||||||
|
|
||||||
|
entry = self.source.current
|
||||||
|
info = self.status or (entry.path if entry.name else self.source.path)
|
||||||
|
fill(win, list_bottom + 1, " " + truncate(info, width - 2),
|
||||||
|
curses.color_pair(C_DIM))
|
||||||
|
|
||||||
|
for offset, line in enumerate(reversed(keys)):
|
||||||
|
fill(win, height - 1 - offset, " " + line, curses.color_pair(C_FOOTER))
|
||||||
|
|
||||||
|
def _draw_pane(self, win, pane, x, width, top, rows, active):
|
||||||
|
if width < 8:
|
||||||
|
return
|
||||||
|
header = pane.title or pane.path
|
||||||
|
attr = curses.color_pair(C_SEL) if active else curses.color_pair(C_DIM)
|
||||||
|
put(win, 1, x, (" " + truncate(header, width - 2)).ljust(width), attr)
|
||||||
|
put(win, 2, x, truncate(pane.path, width - 1).ljust(width),
|
||||||
|
curses.A_BOLD if active else 0)
|
||||||
|
|
||||||
|
if pane.error:
|
||||||
|
put(win, top, x + 1, truncate(pane.error, width - 2),
|
||||||
|
curses.color_pair(C_WARN))
|
||||||
|
return
|
||||||
|
|
||||||
|
if pane.index < pane.top:
|
||||||
|
pane.top = pane.index
|
||||||
|
if pane.index >= pane.top + rows:
|
||||||
|
pane.top = pane.index - rows + 1
|
||||||
|
pane.top = max(0, min(pane.top, max(0, len(pane.entries) - rows)))
|
||||||
|
|
||||||
|
for row in range(rows):
|
||||||
|
position = pane.top + row
|
||||||
|
if position >= len(pane.entries):
|
||||||
|
break
|
||||||
|
entry = pane.entries[position]
|
||||||
|
marked = entry.name in pane.marks
|
||||||
|
|
||||||
|
if active and position == pane.index:
|
||||||
|
attribute = curses.color_pair(C_SEL)
|
||||||
|
elif marked:
|
||||||
|
attribute = curses.color_pair(C_MARK) | curses.A_BOLD
|
||||||
|
elif entry.is_dir:
|
||||||
|
attribute = curses.color_pair(C_DIR)
|
||||||
|
else:
|
||||||
|
attribute = 0
|
||||||
|
|
||||||
|
put(win, top + row, x, self._format(entry, width, marked), attribute)
|
||||||
|
|
||||||
|
total = len(pane.entries)
|
||||||
|
put(win, top + rows, x, " %d Eintraege%s"
|
||||||
|
% (total, " %d markiert" % len(pane.marks) if pane.marks else ""),
|
||||||
|
curses.color_pair(C_DIM))
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _format(entry, width, marked):
|
||||||
|
"""Eine Zeile mit genau `width` Zeichen - laenger wuerde ins andere
|
||||||
|
Fenster hineinschreiben."""
|
||||||
|
mark = "*" if marked else " "
|
||||||
|
suffix = "@" if entry.is_link else ""
|
||||||
|
|
||||||
|
def sized(text):
|
||||||
|
return text.ljust(width)[:width]
|
||||||
|
|
||||||
|
if entry.is_up:
|
||||||
|
return sized("%s.. <hoch>" % mark)
|
||||||
|
|
||||||
|
if entry.is_dir:
|
||||||
|
size = "<DIR>"
|
||||||
|
elif entry.is_special:
|
||||||
|
size = "<SPEZ>"
|
||||||
|
else:
|
||||||
|
size = human_bytes(entry.size)
|
||||||
|
|
||||||
|
when = (datetime.fromtimestamp(entry.mtime).strftime("%d.%m.%y %H:%M")
|
||||||
|
if entry.mtime else "")
|
||||||
|
|
||||||
|
# 1 Markierung + Name + 1 + 8 Groesse + 1 + 14 Datum
|
||||||
|
room = width - 25
|
||||||
|
if room < 8:
|
||||||
|
return sized("%s%s" % (mark, truncate(entry.name + suffix, max(1, width - 2))))
|
||||||
|
name = truncate(entry.name + suffix, room).ljust(room)
|
||||||
|
return sized("%s%s %s %s" % (mark, name, size.rjust(8), when.rjust(14)))
|
||||||
|
|
||||||
|
# -- Hauptschleife ----------------------------------------------------
|
||||||
|
|
||||||
|
def run(self, win):
|
||||||
|
for pane in self.panes:
|
||||||
|
pane.reload()
|
||||||
|
|
||||||
|
while True:
|
||||||
|
self.draw(win)
|
||||||
|
win.refresh()
|
||||||
|
key = read_key(win)
|
||||||
|
rows = max(1, win.getmaxyx()[0] - 7)
|
||||||
|
self.status = ""
|
||||||
|
pane = self.source
|
||||||
|
|
||||||
|
if key == "\t" or key == curses.KEY_BTAB:
|
||||||
|
self.active = 1 - self.active
|
||||||
|
elif key in (curses.KEY_UP, "k"):
|
||||||
|
pane.move(-1)
|
||||||
|
elif key in (curses.KEY_DOWN, "j"):
|
||||||
|
pane.move(1)
|
||||||
|
elif key == curses.KEY_NPAGE:
|
||||||
|
pane.move(rows)
|
||||||
|
elif key == curses.KEY_PPAGE:
|
||||||
|
pane.move(-rows)
|
||||||
|
elif key == curses.KEY_HOME:
|
||||||
|
pane.index = 0
|
||||||
|
elif key == curses.KEY_END:
|
||||||
|
pane.index = len(pane.entries) - 1
|
||||||
|
elif is_enter(key):
|
||||||
|
if not pane.open_current():
|
||||||
|
self._view(win, pane.current)
|
||||||
|
elif key in (curses.KEY_BACKSPACE, "\x7f", curses.KEY_LEFT):
|
||||||
|
if pane.entries and pane.entries[0].is_up:
|
||||||
|
pane.index = 0
|
||||||
|
pane.open_current()
|
||||||
|
elif key == " ":
|
||||||
|
pane.toggle_mark()
|
||||||
|
pane.move(1)
|
||||||
|
elif key == "*":
|
||||||
|
for entry in pane.entries:
|
||||||
|
if entry.is_up:
|
||||||
|
continue
|
||||||
|
if entry.name in pane.marks:
|
||||||
|
pane.marks.discard(entry.name)
|
||||||
|
else:
|
||||||
|
pane.marks.add(entry.name)
|
||||||
|
elif key in ("a", "A"):
|
||||||
|
pane.marks = {e.name for e in pane.entries if not e.is_up}
|
||||||
|
elif key in ("u", "U"):
|
||||||
|
pane.marks.clear()
|
||||||
|
elif key in (curses.KEY_F5, "c", "C"):
|
||||||
|
self._copy(win)
|
||||||
|
elif key in (curses.KEY_F3, "v", "V"):
|
||||||
|
self._view(win, pane.current)
|
||||||
|
elif key in (curses.KEY_F7, "n", "N"):
|
||||||
|
self._mkdir(win)
|
||||||
|
elif key in (curses.KEY_F2, "m", "M"):
|
||||||
|
self._switch_mount(win)
|
||||||
|
elif key in (curses.KEY_F6, "g", "G"):
|
||||||
|
self._goto(win)
|
||||||
|
elif key in ("r", "R", curses.KEY_F9):
|
||||||
|
for item in self.panes:
|
||||||
|
item.reload()
|
||||||
|
elif key in ("h", "?", curses.KEY_F1):
|
||||||
|
self._help(win)
|
||||||
|
elif key in (curses.KEY_F10, "q", "Q"):
|
||||||
|
return
|
||||||
|
elif is_escape(key):
|
||||||
|
if confirm(win, "Explorer beenden?"):
|
||||||
|
return
|
||||||
|
|
||||||
|
# -- Aktionen ---------------------------------------------------------
|
||||||
|
|
||||||
|
def _copy(self, win):
|
||||||
|
source, target = self.source, self.target
|
||||||
|
if target.readonly:
|
||||||
|
message(win, "Das Ziel ist schreibgeschuetzt - ein Snapshot laesst sich "
|
||||||
|
"nicht beschreiben.", error=True)
|
||||||
|
return
|
||||||
|
|
||||||
|
entries = source.selection()
|
||||||
|
if not entries:
|
||||||
|
message(win, "Nichts ausgewaehlt.", error=True)
|
||||||
|
return
|
||||||
|
|
||||||
|
def progress(name, done, total):
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
share = (done / total * 100) if total else 100
|
||||||
|
bar_width = max(10, width - 46)
|
||||||
|
filled = int(bar_width * share / 100)
|
||||||
|
fill(win, height - 2,
|
||||||
|
" %s [%s%s] %3d%% %s / %s (ESC bricht ab)"
|
||||||
|
% (truncate(name, 24).ljust(24), "#" * filled,
|
||||||
|
"." * (bar_width - filled), share,
|
||||||
|
human_bytes(done), human_bytes(total)),
|
||||||
|
curses.color_pair(C_SEL))
|
||||||
|
win.refresh()
|
||||||
|
|
||||||
|
copier = Copier(win, progress)
|
||||||
|
progress("Groesse ermitteln ...", 0, 0)
|
||||||
|
total = copier.measure(entries)
|
||||||
|
|
||||||
|
free = target.free_space()
|
||||||
|
if free and total > free:
|
||||||
|
if not confirm(win, "Es werden %s benoetigt, frei sind nur %s - trotzdem?"
|
||||||
|
% (human_bytes(total), human_bytes(free))):
|
||||||
|
return
|
||||||
|
|
||||||
|
what = ("%d Eintraege" % len(entries)) if len(entries) > 1 else entries[0].name
|
||||||
|
if not confirm(win, "%s (%s) nach %s kopieren?"
|
||||||
|
% (truncate(what, 30), human_bytes(total), target.path)):
|
||||||
|
return
|
||||||
|
|
||||||
|
started = time.time()
|
||||||
|
try:
|
||||||
|
copier.copy(entries, target.path)
|
||||||
|
summary = ("%d Objekt(e) kopiert, %s in %.1fs"
|
||||||
|
% (copier.copied, human_bytes(copier.done), time.time() - started))
|
||||||
|
except Aborted:
|
||||||
|
summary = "Abgebrochen - %d Objekt(e) waren fertig" % copier.copied
|
||||||
|
except SnapfsError as exc:
|
||||||
|
summary = str(exc)
|
||||||
|
|
||||||
|
source.marks.clear()
|
||||||
|
target.reload()
|
||||||
|
|
||||||
|
if copier.failed or copier.skipped:
|
||||||
|
self._report(win, summary, copier)
|
||||||
|
else:
|
||||||
|
message(win, summary)
|
||||||
|
|
||||||
|
def _report(self, win, summary, copier):
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
lines = [summary, ""]
|
||||||
|
if copier.failed:
|
||||||
|
lines.append("Fehlgeschlagen (%d):" % len(copier.failed))
|
||||||
|
lines += [" " + item for item in copier.failed[:10]]
|
||||||
|
if copier.skipped:
|
||||||
|
lines.append("Uebersprungen (%d):" % len(copier.skipped))
|
||||||
|
lines += [" " + item for item in copier.skipped[:10]]
|
||||||
|
|
||||||
|
win.erase()
|
||||||
|
fill(win, 0, " Ergebnis", curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
for row, line in enumerate(lines[: height - 3]):
|
||||||
|
put(win, row + 2, 2, truncate(line, width - 4))
|
||||||
|
fill(win, height - 1, " beliebige Taste = weiter", curses.color_pair(C_FOOTER))
|
||||||
|
win.refresh()
|
||||||
|
read_key(win)
|
||||||
|
|
||||||
|
def _mkdir(self, win):
|
||||||
|
pane = self.source
|
||||||
|
if pane.readonly:
|
||||||
|
message(win, "Im Snapshot laesst sich nichts anlegen.", error=True)
|
||||||
|
return
|
||||||
|
name = prompt(win, "Neues Verzeichnis", "")
|
||||||
|
if not name:
|
||||||
|
return
|
||||||
|
try:
|
||||||
|
os.makedirs(os.path.join(pane.path, name), exist_ok=False)
|
||||||
|
pane.reload()
|
||||||
|
except OSError as exc:
|
||||||
|
message(win, "Nicht angelegt: %s" % (exc.strerror or exc), error=True)
|
||||||
|
|
||||||
|
def _goto(self, win):
|
||||||
|
pane = self.source
|
||||||
|
path = prompt(win, "Verzeichnis wechseln nach", pane.path)
|
||||||
|
if not path:
|
||||||
|
return
|
||||||
|
if not pane.go(os.path.expanduser(path)):
|
||||||
|
message(win, "Kein Verzeichnis: %s" % path, error=True)
|
||||||
|
|
||||||
|
def _switch_mount(self, win):
|
||||||
|
if not self.session or len(self.session.mounts) < 2:
|
||||||
|
message(win, "Es ist nur ein Dateisystem eingebunden.")
|
||||||
|
return
|
||||||
|
entries = []
|
||||||
|
for device, mountpoint in sorted(self.session.mounts.items()):
|
||||||
|
entries.append((mountpoint, "%s -> %s" % (device, mountpoint)))
|
||||||
|
chosen = choose(win, "Welches Dateisystem?", entries)
|
||||||
|
if chosen:
|
||||||
|
self.panes[0].root = chosen
|
||||||
|
self.panes[0].go(chosen)
|
||||||
|
|
||||||
|
def _view(self, win, entry):
|
||||||
|
if not entry.name or entry.is_dir or entry.is_special:
|
||||||
|
return
|
||||||
|
try:
|
||||||
|
with open(entry.path, "rb") as handle:
|
||||||
|
raw = handle.read(1024 * 1024)
|
||||||
|
except OSError as exc:
|
||||||
|
message(win, "Nicht lesbar: %s" % (exc.strerror or exc), error=True)
|
||||||
|
return
|
||||||
|
|
||||||
|
binary = b"\0" in raw[:8192]
|
||||||
|
if binary:
|
||||||
|
lines = _hexdump(raw[: 64 * 1024])
|
||||||
|
else:
|
||||||
|
lines = raw.decode("utf-8", "replace").splitlines() or ["(leer)"]
|
||||||
|
|
||||||
|
top = 0
|
||||||
|
while True:
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
rows = height - 3
|
||||||
|
win.erase()
|
||||||
|
fill(win, 0, " %s %s%s" % (truncate(entry.path, width - 30),
|
||||||
|
human_bytes(entry.size),
|
||||||
|
" [binaer, Hex-Ansicht]" if binary else ""),
|
||||||
|
curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
for row in range(rows):
|
||||||
|
position = top + row
|
||||||
|
if position >= len(lines):
|
||||||
|
break
|
||||||
|
put(win, row + 1, 0, truncate(lines[position].rstrip("\n"), width - 1))
|
||||||
|
fill(win, height - 1,
|
||||||
|
" Pfeiltasten/Bild blaettern | Pos1/Ende | q zurueck (Zeile %d von %d)"
|
||||||
|
% (min(top + 1, len(lines)), len(lines)), curses.color_pair(C_FOOTER))
|
||||||
|
win.refresh()
|
||||||
|
|
||||||
|
key = read_key(win)
|
||||||
|
if key in (curses.KEY_DOWN, "j"):
|
||||||
|
top += 1
|
||||||
|
elif key in (curses.KEY_UP, "k"):
|
||||||
|
top -= 1
|
||||||
|
elif key == curses.KEY_NPAGE or key == " ":
|
||||||
|
top += rows
|
||||||
|
elif key == curses.KEY_PPAGE:
|
||||||
|
top -= rows
|
||||||
|
elif key == curses.KEY_HOME:
|
||||||
|
top = 0
|
||||||
|
elif key == curses.KEY_END:
|
||||||
|
top = len(lines) - rows
|
||||||
|
elif key in ("q", "Q", curses.KEY_F3, curses.KEY_F10) or is_escape(key):
|
||||||
|
return
|
||||||
|
top = max(0, min(top, max(0, len(lines) - 1)))
|
||||||
|
|
||||||
|
def _help(self, win):
|
||||||
|
lines = [
|
||||||
|
"Tab zwischen den Fenstern wechseln",
|
||||||
|
"Pfeiltasten bewegen, Enter oeffnet Verzeichnis oder zeigt Datei",
|
||||||
|
"Backspace ein Verzeichnis hoch",
|
||||||
|
"Leertaste markieren, * umkehren, a alle, u keine",
|
||||||
|
"F5 / c markiertes ins andere Fenster kopieren",
|
||||||
|
"F3 / v Datei ansehen (Text oder Hex)",
|
||||||
|
"F7 / n neues Verzeichnis (nur im lokalen Fenster)",
|
||||||
|
"F6 / g Verzeichnis direkt eingeben",
|
||||||
|
"F2 / m anderes Dateisystem des Snapshots waehlen",
|
||||||
|
"r neu einlesen",
|
||||||
|
"F10 / q beenden",
|
||||||
|
"",
|
||||||
|
"Der Snapshot ist schreibgeschuetzt eingebunden - es kann nichts",
|
||||||
|
"kaputtgehen. Kopiert wird immer vom aktiven ins andere Fenster.",
|
||||||
|
"Geraetedateien und Sockets werden uebersprungen, symbolische",
|
||||||
|
"Verweise bleiben Verweise.",
|
||||||
|
]
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
win.erase()
|
||||||
|
fill(win, 0, " Tastenbelegung", curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
for row, line in enumerate(lines[: height - 3]):
|
||||||
|
put(win, row + 2, 3, truncate(line, width - 5))
|
||||||
|
fill(win, height - 1, " beliebige Taste = zurueck", curses.color_pair(C_FOOTER))
|
||||||
|
win.refresh()
|
||||||
|
read_key(win)
|
||||||
|
|
||||||
|
|
||||||
|
def _hexdump(raw, width=16):
|
||||||
|
lines = []
|
||||||
|
for offset in range(0, len(raw), width):
|
||||||
|
chunk = raw[offset:offset + width]
|
||||||
|
hexpart = " ".join("%02x" % byte for byte in chunk).ljust(width * 3)
|
||||||
|
text = "".join(chr(b) if 32 <= b < 127 else "." for b in chunk)
|
||||||
|
lines.append("%08x %s |%s|" % (offset, hexpart, text))
|
||||||
|
return lines
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Auswahl von Gast und Snapshot
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def _pick_guest(win, guests):
|
||||||
|
entries = [(g, "%s %-6d %-24s %-8s %s"
|
||||||
|
% ("LXC" if g.type == "lxc" else "VM ", g.vmid,
|
||||||
|
truncate(g.name or "-", 24), g.status, g.node))
|
||||||
|
for g in guests]
|
||||||
|
return choose(win, "Welcher Gast?", entries)
|
||||||
|
|
||||||
|
|
||||||
|
def _pick_snapshot(win, snapshots):
|
||||||
|
entries = []
|
||||||
|
for snap in snapshots:
|
||||||
|
when = (datetime.fromtimestamp(snap.snaptime).strftime("%d.%m.%Y %H:%M")
|
||||||
|
if snap.snaptime else "?")
|
||||||
|
entries.append((snap.name, "%-34s %s %s"
|
||||||
|
% (truncate(snap.name, 34), when,
|
||||||
|
truncate(snap.description.replace("\n", " "), 40))))
|
||||||
|
return choose(win, "Welcher Snapshot?", entries)
|
||||||
|
|
||||||
|
|
||||||
|
def _wait_screen(win, text):
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
win.erase()
|
||||||
|
fill(win, 0, " pvesnap-explorer", curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
put(win, height // 2, max(2, (width - len(text)) // 2), text, curses.A_BOLD)
|
||||||
|
win.refresh()
|
||||||
|
|
||||||
|
|
||||||
|
def _show_notes(win, notes, title="Hinweise"):
|
||||||
|
if not notes:
|
||||||
|
return
|
||||||
|
height, width = win.getmaxyx()
|
||||||
|
win.erase()
|
||||||
|
fill(win, 0, " %s" % title, curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
|
for row, note in enumerate(notes[: height - 3]):
|
||||||
|
put(win, row + 2, 2, truncate("- " + note, width - 4), curses.color_pair(C_WARN))
|
||||||
|
fill(win, height - 1, " beliebige Taste = weiter", curses.color_pair(C_FOOTER))
|
||||||
|
win.refresh()
|
||||||
|
read_key(win)
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Ablauf
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def _main(stdscr, args):
|
||||||
|
curses.curs_set(0)
|
||||||
|
if hasattr(curses, "set_escdelay"):
|
||||||
|
curses.set_escdelay(25)
|
||||||
|
init_colors()
|
||||||
|
stdscr.keypad(True)
|
||||||
|
|
||||||
|
local = Pane(path=os.path.realpath(args.local), root="/", readonly=False,
|
||||||
|
title="Lokaler Rechner")
|
||||||
|
|
||||||
|
if args.path:
|
||||||
|
left = Pane(path=os.path.realpath(args.path), root=os.path.realpath(args.path),
|
||||||
|
readonly=True, title="Verzeichnis: %s" % args.path)
|
||||||
|
Explorer(left, local, subtitle=args.path).run(stdscr)
|
||||||
|
return 0
|
||||||
|
|
||||||
|
_wait_screen(stdscr, "Frage Proxmox nach VMs und Containern ...")
|
||||||
|
proxmox = Proxmox()
|
||||||
|
guests = proxmox.inventory()
|
||||||
|
if not guests:
|
||||||
|
message(stdscr, "Keine VMs oder Container gefunden.", error=True)
|
||||||
|
return 1
|
||||||
|
|
||||||
|
if args.vmid:
|
||||||
|
guest = next((g for g in guests if g.vmid == args.vmid), None)
|
||||||
|
if guest is None:
|
||||||
|
message(stdscr, "Gast %d nicht gefunden." % args.vmid, error=True)
|
||||||
|
return 2
|
||||||
|
else:
|
||||||
|
guest = _pick_guest(stdscr, guests)
|
||||||
|
if guest is None:
|
||||||
|
return 0
|
||||||
|
|
||||||
|
_wait_screen(stdscr, "Lese Snapshots von %s ..." % guest.label)
|
||||||
|
snapshots = list_snapshots(proxmox, guest)
|
||||||
|
if not snapshots:
|
||||||
|
message(stdscr, "%s hat keine Snapshots." % guest.label, error=True)
|
||||||
|
return 1
|
||||||
|
|
||||||
|
if args.snapshot:
|
||||||
|
name = next((s.name for s in snapshots if s.name == args.snapshot), None)
|
||||||
|
if name is None:
|
||||||
|
message(stdscr, "Snapshot %r nicht gefunden." % args.snapshot, error=True)
|
||||||
|
return 2
|
||||||
|
else:
|
||||||
|
name = _pick_snapshot(stdscr, snapshots)
|
||||||
|
if name is None:
|
||||||
|
return 0
|
||||||
|
|
||||||
|
session = Session(proxmox, guest, name)
|
||||||
|
try:
|
||||||
|
_wait_screen(stdscr, "Binde Snapshot '%s' ein - das kann etwas dauern ..." % name)
|
||||||
|
session.open()
|
||||||
|
session.prepare()
|
||||||
|
except (SnapfsError, ProxmoxError) as exc:
|
||||||
|
session.close()
|
||||||
|
_show_notes(stdscr, str(exc).splitlines() + session.notes, "Fehlgeschlagen")
|
||||||
|
return 3
|
||||||
|
|
||||||
|
try:
|
||||||
|
_show_notes(stdscr, session.notes)
|
||||||
|
mountpoints = sorted(set(session.mounts.values()))
|
||||||
|
start = mountpoints[0]
|
||||||
|
if len(mountpoints) > 1:
|
||||||
|
entries = [(m, m) for m in mountpoints]
|
||||||
|
start = choose(stdscr, "Welches Dateisystem zuerst?", entries) or mountpoints[0]
|
||||||
|
|
||||||
|
left = Pane(path=start, root=start, readonly=True,
|
||||||
|
title="%s @ %s" % (guest.label, name))
|
||||||
|
Explorer(left, local, session=session,
|
||||||
|
subtitle="%s - Snapshot %s" % (guest.label, name)).run(stdscr)
|
||||||
|
finally:
|
||||||
|
_wait_screen(stdscr, "Haenge Snapshot wieder aus ...")
|
||||||
|
session.close()
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
def build_parser():
|
||||||
|
parser = argparse.ArgumentParser(
|
||||||
|
prog="pvesnap-explorer",
|
||||||
|
description="Dateien aus einem Proxmox-Snapshot holen (zwei Fenster wie im "
|
||||||
|
"Midnight Commander).")
|
||||||
|
parser.add_argument("vmid", nargs="?", type=int, help="VMID des Gastes")
|
||||||
|
parser.add_argument("snapshot", nargs="?", help="Name des Snapshots")
|
||||||
|
parser.add_argument("-l", "--local", default=os.getcwd(),
|
||||||
|
help="Startverzeichnis im rechten Fenster (Vorgabe: aktuelles)")
|
||||||
|
parser.add_argument("-p", "--path",
|
||||||
|
help="beliebiges Verzeichnis oeffnen, ohne Proxmox zu fragen")
|
||||||
|
parser.add_argument("--cleanup", action="store_true",
|
||||||
|
help="haengengebliebene Einbindungen aufraeumen und beenden")
|
||||||
|
parser.add_argument("-v", "--verbose", action="store_true")
|
||||||
|
parser.add_argument("-V", "--version", action="version",
|
||||||
|
version="pvesnap-explorer %s" % __version__)
|
||||||
|
return parser
|
||||||
|
|
||||||
|
|
||||||
|
def main(argv=None):
|
||||||
|
args = build_parser().parse_args(argv)
|
||||||
|
|
||||||
|
logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO,
|
||||||
|
format="%(levelname)s %(message)s")
|
||||||
|
|
||||||
|
if args.cleanup:
|
||||||
|
removed = cleanup_leftovers(verbose=True)
|
||||||
|
print("%d Eintrag/Eintraege aufgeraeumt." % len(removed))
|
||||||
|
return 0
|
||||||
|
|
||||||
|
if not args.path:
|
||||||
|
if not pvesh_available():
|
||||||
|
print("'pvesh' nicht gefunden - der Explorer laeuft auf dem Proxmox-Host.\n"
|
||||||
|
"Zum Ausprobieren: pvesnap-explorer --path /ein/verzeichnis",
|
||||||
|
file=sys.stderr)
|
||||||
|
return 3
|
||||||
|
if os.geteuid() != 0:
|
||||||
|
print("Der Explorer braucht root-Rechte (Snapshots einbinden und mounten).",
|
||||||
|
file=sys.stderr)
|
||||||
|
return 4
|
||||||
|
|
||||||
|
# Waehrend der Oberflaeche darf nichts ins Terminal protokolliert werden.
|
||||||
|
handlers = logging.getLogger().handlers[:]
|
||||||
|
if not args.verbose:
|
||||||
|
logging.getLogger().handlers = []
|
||||||
|
try:
|
||||||
|
return curses.wrapper(_main, args)
|
||||||
|
except KeyboardInterrupt:
|
||||||
|
return 130
|
||||||
|
finally:
|
||||||
|
logging.getLogger().handlers = handlers
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__": # pragma: no cover
|
||||||
|
sys.exit(main())
|
||||||
@@ -0,0 +1,592 @@
|
|||||||
|
"""Snapshots als Dateisystem zugaenglich machen.
|
||||||
|
|
||||||
|
Ein Proxmox-Snapshot ist kein Verzeichnis - je nach Storage muss er erst
|
||||||
|
zugaenglich gemacht werden:
|
||||||
|
|
||||||
|
rbd (Ceph) rbd map pool/image@snap -> /dev/rbdN
|
||||||
|
zfspool zfs clone ds@snap tmp -> /dev/zvol/tmp
|
||||||
|
(bei Container-Datasets direkt .zfs/snapshot/<snap>)
|
||||||
|
lvmthin lvchange -ay vg/snap_vol_snap -> /dev/vg/snap_...
|
||||||
|
dir/nfs qemu-nbd --load-snapshot -> /dev/nbdN
|
||||||
|
|
||||||
|
Danach werden die Partitionen ermittelt und **schreibgeschuetzt** gemountet.
|
||||||
|
Alles, was angelegt wurde, merkt sich diese Schicht und raeumt es wieder ab -
|
||||||
|
auch nach einem Absturz ueber `cleanup_leftovers()`.
|
||||||
|
|
||||||
|
Auf den Inhalt greifen Explorer und Web-Oberflaeche dann nur noch als
|
||||||
|
gewoehnlichen Pfad zu.
|
||||||
|
"""
|
||||||
|
|
||||||
|
from __future__ import annotations
|
||||||
|
|
||||||
|
import json
|
||||||
|
import logging
|
||||||
|
import os
|
||||||
|
import re
|
||||||
|
import shutil
|
||||||
|
import subprocess
|
||||||
|
import time
|
||||||
|
from dataclasses import dataclass, field
|
||||||
|
|
||||||
|
log = logging.getLogger("pvesnap.snapfs")
|
||||||
|
|
||||||
|
RUN_DIR = "/run/pvesnap"
|
||||||
|
MOUNT_ROOT = os.path.join(RUN_DIR, "mnt")
|
||||||
|
REGISTRY = os.path.join(RUN_DIR, "explorer.json")
|
||||||
|
|
||||||
|
# Datentraeger-Schluessel in den Gast-Konfigurationen
|
||||||
|
QEMU_DISK_KEY = re.compile(r"^(ide|sata|scsi|virtio)\d+$")
|
||||||
|
LXC_DISK_KEY = re.compile(r"^(rootfs|mp\d+)$")
|
||||||
|
|
||||||
|
# Mount-Optionen je Dateisystem. Snapshots laufender Gaeste haben fast immer
|
||||||
|
# ein unsauberes Journal - ohne diese Optionen wuerde der Kernel versuchen,
|
||||||
|
# es zurueckzuschreiben.
|
||||||
|
MOUNT_OPTIONS = {
|
||||||
|
"ext2": ["ro"],
|
||||||
|
"ext3": ["ro", "noload"],
|
||||||
|
"ext4": ["ro", "noload"],
|
||||||
|
"xfs": ["ro", "norecovery", "nouuid"],
|
||||||
|
"btrfs": ["ro", "nologreplay"],
|
||||||
|
"vfat": ["ro"],
|
||||||
|
"ntfs": ["ro"],
|
||||||
|
"ntfs3": ["ro"],
|
||||||
|
"iso9660": ["ro"],
|
||||||
|
}
|
||||||
|
DEFAULT_MOUNT_OPTIONS = ["ro"]
|
||||||
|
|
||||||
|
MOUNTABLE = set(MOUNT_OPTIONS) | {"ext4", "xfs", "btrfs"}
|
||||||
|
IGNORED_FSTYPES = {"", "swap", "linux_raid_member", "crypto_LUKS", "LVM2_member"}
|
||||||
|
|
||||||
|
|
||||||
|
class SnapfsError(Exception):
|
||||||
|
"""Ein Snapshot liess sich nicht zugaenglich machen."""
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Kommandos
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def run(args, timeout=120, check=True):
|
||||||
|
"""Externes Kommando ausfuehren; gibt die Standardausgabe zurueck."""
|
||||||
|
log.debug("exec: %s", " ".join(args))
|
||||||
|
try:
|
||||||
|
proc = subprocess.run(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
|
||||||
|
timeout=timeout)
|
||||||
|
except FileNotFoundError:
|
||||||
|
raise SnapfsError("Kommando nicht gefunden: %s" % args[0])
|
||||||
|
except subprocess.TimeoutExpired:
|
||||||
|
raise SnapfsError("Zeitueberschreitung bei: %s" % " ".join(args))
|
||||||
|
|
||||||
|
stdout = proc.stdout.decode("utf-8", "replace").strip()
|
||||||
|
stderr = proc.stderr.decode("utf-8", "replace").strip()
|
||||||
|
if check and proc.returncode != 0:
|
||||||
|
raise SnapfsError("%s: %s" % (args[0], (stderr or stdout or "Fehler").splitlines()[0]))
|
||||||
|
return stdout
|
||||||
|
|
||||||
|
|
||||||
|
def have(command):
|
||||||
|
return shutil.which(command) is not None
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Datenmodell
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
@dataclass
|
||||||
|
class Volume:
|
||||||
|
"""Ein Datentraeger aus der Gast-Konfiguration."""
|
||||||
|
key: str # scsi0, rootfs, mp0 ...
|
||||||
|
volid: str # data:vm-802-disk-0
|
||||||
|
storage: str # data
|
||||||
|
volname: str # vm-802-disk-0
|
||||||
|
size: str = ""
|
||||||
|
|
||||||
|
@property
|
||||||
|
def label(self):
|
||||||
|
return "%s %s%s" % (self.key.ljust(8), self.volid,
|
||||||
|
(" (%s)" % self.size) if self.size else "")
|
||||||
|
|
||||||
|
|
||||||
|
@dataclass
|
||||||
|
class Device:
|
||||||
|
"""Ein Blockgeraet (ganze Platte oder Partition) des Snapshots."""
|
||||||
|
path: str
|
||||||
|
name: str = ""
|
||||||
|
size: int = 0
|
||||||
|
fstype: str = ""
|
||||||
|
label: str = ""
|
||||||
|
kind: str = "part"
|
||||||
|
volume: object = None
|
||||||
|
|
||||||
|
@property
|
||||||
|
def mountable(self):
|
||||||
|
return bool(self.fstype) and self.fstype not in IGNORED_FSTYPES
|
||||||
|
|
||||||
|
@property
|
||||||
|
def human_size(self):
|
||||||
|
return human_bytes(self.size)
|
||||||
|
|
||||||
|
@property
|
||||||
|
def title(self):
|
||||||
|
parts = [os.path.basename(self.path)]
|
||||||
|
if self.label:
|
||||||
|
parts.append('"%s"' % self.label)
|
||||||
|
parts.append(self.fstype or "unbekannt")
|
||||||
|
parts.append(self.human_size)
|
||||||
|
return " ".join(parts)
|
||||||
|
|
||||||
|
|
||||||
|
def human_bytes(count):
|
||||||
|
value = float(count or 0)
|
||||||
|
for unit in ("B", "K", "M", "G", "T", "P"):
|
||||||
|
if value < 1024 or unit == "P":
|
||||||
|
return "%d%s" % (value, unit) if unit == "B" else "%.1f%s" % (value, unit)
|
||||||
|
value /= 1024
|
||||||
|
return "%.1fP" % value
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Konfiguration des Snapshots lesen
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def snapshot_config(proxmox, guest, snapname):
|
||||||
|
path = "/nodes/%s/%s/%d/snapshot/%s/config" % (guest.node, guest.type,
|
||||||
|
guest.vmid, snapname)
|
||||||
|
data = proxmox._json(["get", path])
|
||||||
|
if not isinstance(data, dict):
|
||||||
|
raise SnapfsError("Konfiguration des Snapshots %r nicht lesbar" % snapname)
|
||||||
|
return data
|
||||||
|
|
||||||
|
|
||||||
|
def volumes_from_config(config, guest_type):
|
||||||
|
"""Alle echten Datentraeger aus einer Gast-Konfiguration."""
|
||||||
|
pattern = LXC_DISK_KEY if guest_type == "lxc" else QEMU_DISK_KEY
|
||||||
|
volumes = []
|
||||||
|
for key in sorted(config):
|
||||||
|
if not pattern.match(key):
|
||||||
|
continue
|
||||||
|
value = str(config[key])
|
||||||
|
if not value or "media=cdrom" in value:
|
||||||
|
continue
|
||||||
|
volid = value.split(",", 1)[0].strip()
|
||||||
|
if volid in ("none", "cdrom") or ":" not in volid:
|
||||||
|
continue
|
||||||
|
storage, volname = volid.split(":", 1)
|
||||||
|
size = ""
|
||||||
|
for part in value.split(",")[1:]:
|
||||||
|
if part.strip().startswith("size="):
|
||||||
|
size = part.strip()[5:]
|
||||||
|
volumes.append(Volume(key=key, volid=volid, storage=storage,
|
||||||
|
volname=volname, size=size))
|
||||||
|
return volumes
|
||||||
|
|
||||||
|
|
||||||
|
def storage_info(proxmox, name):
|
||||||
|
data = proxmox._json(["get", "/storage/%s" % name])
|
||||||
|
if not isinstance(data, dict):
|
||||||
|
raise SnapfsError("Storage %r nicht gefunden" % name)
|
||||||
|
return data
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Merkliste, damit nach einem Absturz nichts stehen bleibt
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def _registry_load():
|
||||||
|
try:
|
||||||
|
with open(REGISTRY, "r", encoding="utf-8") as handle:
|
||||||
|
data = json.load(handle)
|
||||||
|
return data if isinstance(data, list) else []
|
||||||
|
except (OSError, ValueError):
|
||||||
|
return []
|
||||||
|
|
||||||
|
|
||||||
|
def _registry_save(entries):
|
||||||
|
try:
|
||||||
|
os.makedirs(RUN_DIR, exist_ok=True)
|
||||||
|
tmp = REGISTRY + ".tmp"
|
||||||
|
with open(tmp, "w", encoding="utf-8") as handle:
|
||||||
|
json.dump(entries, handle, indent=1)
|
||||||
|
os.replace(tmp, REGISTRY)
|
||||||
|
except OSError as exc:
|
||||||
|
log.debug("Merkliste nicht schreibbar: %s", exc)
|
||||||
|
|
||||||
|
|
||||||
|
def _registry_add(kind, value, extra=None):
|
||||||
|
entries = _registry_load()
|
||||||
|
entries.append({"kind": kind, "value": value, "extra": extra or {},
|
||||||
|
"pid": os.getpid(), "time": int(time.time())})
|
||||||
|
_registry_save(entries)
|
||||||
|
|
||||||
|
|
||||||
|
def _registry_remove(kind, value):
|
||||||
|
entries = [e for e in _registry_load()
|
||||||
|
if not (e.get("kind") == kind and e.get("value") == value)]
|
||||||
|
_registry_save(entries)
|
||||||
|
|
||||||
|
|
||||||
|
def cleanup_leftovers(verbose=False):
|
||||||
|
"""Raeumt auf, was ein abgestuerzter Lauf hinterlassen hat."""
|
||||||
|
removed = []
|
||||||
|
for entry in reversed(_registry_load()):
|
||||||
|
kind, value = entry.get("kind"), entry.get("value")
|
||||||
|
extra = entry.get("extra") or {}
|
||||||
|
try:
|
||||||
|
if kind == "mount":
|
||||||
|
_umount(value)
|
||||||
|
elif kind == "rbd":
|
||||||
|
run(["rbd", "unmap", value], check=False)
|
||||||
|
elif kind == "rbd-nbd":
|
||||||
|
run(["rbd-nbd", "unmap", value], check=False)
|
||||||
|
elif kind == "nbd":
|
||||||
|
run(["qemu-nbd", "--disconnect", value], check=False)
|
||||||
|
elif kind == "lvm":
|
||||||
|
run(["lvchange", "-an", value], check=False)
|
||||||
|
elif kind == "zfsclone":
|
||||||
|
run(["zfs", "destroy", value], check=False)
|
||||||
|
elif kind == "dir":
|
||||||
|
if os.path.isdir(value):
|
||||||
|
os.rmdir(value)
|
||||||
|
else:
|
||||||
|
continue
|
||||||
|
removed.append("%s %s" % (kind, value))
|
||||||
|
if verbose:
|
||||||
|
print("aufgeraeumt: %s %s" % (kind, value))
|
||||||
|
except (SnapfsError, OSError) as exc:
|
||||||
|
if verbose:
|
||||||
|
print("konnte %s %s nicht aufraeumen: %s" % (kind, value, exc))
|
||||||
|
_registry_remove(kind, value)
|
||||||
|
del extra
|
||||||
|
return removed
|
||||||
|
|
||||||
|
|
||||||
|
def _umount(mountpoint):
|
||||||
|
if not os.path.ismount(mountpoint):
|
||||||
|
return
|
||||||
|
try:
|
||||||
|
run(["umount", mountpoint])
|
||||||
|
except SnapfsError:
|
||||||
|
run(["umount", "-l", mountpoint], check=False) # notfalls verzoegert
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Sitzung
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
class Session:
|
||||||
|
"""Ein geoeffneter Snapshot: eingebundene Geraete und Mountpunkte."""
|
||||||
|
|
||||||
|
def __init__(self, proxmox, guest, snapname):
|
||||||
|
self.proxmox = proxmox
|
||||||
|
self.guest = guest
|
||||||
|
self.snapname = snapname
|
||||||
|
self.volumes = []
|
||||||
|
self.devices = []
|
||||||
|
self.mounts = {} # Geraetepfad -> Mountpunkt
|
||||||
|
self.notes = [] # Hinweise fuer die Oberflaeche
|
||||||
|
self._cleanup = [] # (art, wert) in umgekehrter Reihenfolge
|
||||||
|
|
||||||
|
# -- oeffnen ----------------------------------------------------------
|
||||||
|
|
||||||
|
def open(self):
|
||||||
|
config = snapshot_config(self.proxmox, self.guest, self.snapname)
|
||||||
|
self.volumes = volumes_from_config(config, self.guest.type)
|
||||||
|
if not self.volumes:
|
||||||
|
raise SnapfsError("Der Snapshot enthaelt keine Datentraeger.")
|
||||||
|
return self.volumes
|
||||||
|
|
||||||
|
def prepare(self):
|
||||||
|
"""Alle Datentraeger einbinden und mountbare Dateisysteme mounten."""
|
||||||
|
for volume in self.volumes:
|
||||||
|
try:
|
||||||
|
self._prepare_volume(volume)
|
||||||
|
except SnapfsError as exc:
|
||||||
|
self.notes.append("%s: %s" % (volume.key, exc))
|
||||||
|
log.warning("%s (%s): %s", volume.key, volume.volid, exc)
|
||||||
|
if not self.mounts and not self.devices:
|
||||||
|
raise SnapfsError("Kein Datentraeger des Snapshots konnte "
|
||||||
|
"eingebunden werden.\n- " + "\n- ".join(self.notes))
|
||||||
|
return self.mounts
|
||||||
|
|
||||||
|
def _prepare_volume(self, volume):
|
||||||
|
info = storage_info(self.proxmox, volume.storage)
|
||||||
|
kind = info.get("type")
|
||||||
|
|
||||||
|
if kind == "zfspool" and self.guest.type == "lxc":
|
||||||
|
# Container liegen auf ZFS als Dateisystem - der Snapshot ist ohne
|
||||||
|
# Umweg unter .zfs/snapshot/<name> sichtbar.
|
||||||
|
path = self._zfs_snapshot_dir(info, volume)
|
||||||
|
if path:
|
||||||
|
self.mounts[path] = path
|
||||||
|
self.notes.append("%s: direkt aus %s" % (volume.key, path))
|
||||||
|
return
|
||||||
|
|
||||||
|
device_path = self._map(info, volume)
|
||||||
|
for device in self._scan(device_path, volume):
|
||||||
|
self.devices.append(device)
|
||||||
|
if device.mountable:
|
||||||
|
try:
|
||||||
|
self.mount(device)
|
||||||
|
except SnapfsError as exc:
|
||||||
|
self.notes.append("%s: %s" % (device.path, exc))
|
||||||
|
|
||||||
|
# -- Einbinden je Storage-Typ -----------------------------------------
|
||||||
|
|
||||||
|
def _map(self, info, volume):
|
||||||
|
kind = info.get("type")
|
||||||
|
if kind == "rbd":
|
||||||
|
return self._map_rbd(info, volume)
|
||||||
|
if kind == "zfspool":
|
||||||
|
return self._map_zfs(info, volume)
|
||||||
|
if kind in ("lvmthin", "lvm"):
|
||||||
|
return self._map_lvm(info, volume)
|
||||||
|
if kind in ("dir", "nfs", "cifs", "glusterfs"):
|
||||||
|
return self._map_qcow(info, volume)
|
||||||
|
raise SnapfsError("Storage-Typ %r wird vom Explorer nicht unterstuetzt" % kind)
|
||||||
|
|
||||||
|
def _rbd_args(self, info):
|
||||||
|
args = []
|
||||||
|
storage = info.get("storage") or info.get("name") or ""
|
||||||
|
keyring = "/etc/pve/priv/ceph/%s.keyring" % storage
|
||||||
|
if info.get("monhost"):
|
||||||
|
args += ["-m", str(info["monhost"]).replace(" ", ",")]
|
||||||
|
args += ["--id", info.get("username") or "admin"]
|
||||||
|
if os.path.exists(keyring):
|
||||||
|
args += ["--keyring", keyring]
|
||||||
|
else:
|
||||||
|
args += ["--id", info.get("username") or "admin"]
|
||||||
|
return args
|
||||||
|
|
||||||
|
def _map_rbd(self, info, volume):
|
||||||
|
if not have("rbd"):
|
||||||
|
raise SnapfsError("'rbd' ist nicht installiert")
|
||||||
|
pool = info.get("pool") or "rbd"
|
||||||
|
namespace = info.get("namespace")
|
||||||
|
image = "%s/%s%s@%s" % (pool, (namespace + "/") if namespace else "",
|
||||||
|
volume.volname, self.snapname)
|
||||||
|
base = self._rbd_args(info)
|
||||||
|
|
||||||
|
try:
|
||||||
|
output = run(["rbd"] + base + ["map", "--read-only", image])
|
||||||
|
device = self._first_device(output)
|
||||||
|
self._remember("rbd", device)
|
||||||
|
return device
|
||||||
|
except SnapfsError as exc:
|
||||||
|
# krbd kann manche Image-Features nicht - rbd-nbd kann alle.
|
||||||
|
if not have("rbd-nbd"):
|
||||||
|
raise SnapfsError("%s (rbd-nbd waere die Alternative, ist aber "
|
||||||
|
"nicht installiert: apt install ceph-common)" % exc)
|
||||||
|
log.info("rbd map fehlgeschlagen (%s) - versuche rbd-nbd", exc)
|
||||||
|
output = run(["rbd-nbd"] + base + ["map", "--read-only", image], timeout=180)
|
||||||
|
device = self._first_device(output)
|
||||||
|
self._remember("rbd-nbd", device)
|
||||||
|
return device
|
||||||
|
|
||||||
|
def _zfs_dataset(self, info, volume):
|
||||||
|
pool = info.get("pool") or info.get("zfspool") or ""
|
||||||
|
return "%s/%s" % (pool.rstrip("/"), volume.volname)
|
||||||
|
|
||||||
|
def _zfs_snapshot_dir(self, info, volume):
|
||||||
|
dataset = self._zfs_dataset(info, volume)
|
||||||
|
try:
|
||||||
|
mountpoint = run(["zfs", "get", "-H", "-o", "value", "mountpoint", dataset])
|
||||||
|
except SnapfsError:
|
||||||
|
return ""
|
||||||
|
if not mountpoint or mountpoint in ("none", "-", "legacy"):
|
||||||
|
return ""
|
||||||
|
candidate = os.path.join(mountpoint, ".zfs", "snapshot", self.snapname)
|
||||||
|
return candidate if os.path.isdir(candidate) else ""
|
||||||
|
|
||||||
|
def _map_zfs(self, info, volume):
|
||||||
|
if not have("zfs"):
|
||||||
|
raise SnapfsError("'zfs' ist nicht installiert")
|
||||||
|
dataset = self._zfs_dataset(info, volume)
|
||||||
|
source = "%s@%s" % (dataset, self.snapname)
|
||||||
|
clone = "%s-pvesnap-%d" % (dataset, os.getpid())
|
||||||
|
run(["zfs", "clone", "-o", "readonly=on", source, clone])
|
||||||
|
self._remember("zfsclone", clone)
|
||||||
|
device = "/dev/zvol/%s" % clone
|
||||||
|
for _ in range(50): # udev braucht einen Moment
|
||||||
|
if os.path.exists(device):
|
||||||
|
return device
|
||||||
|
time.sleep(0.1)
|
||||||
|
raise SnapfsError("Klon %s ist nicht als Geraet aufgetaucht" % clone)
|
||||||
|
|
||||||
|
def _map_lvm(self, info, volume):
|
||||||
|
if not have("lvchange"):
|
||||||
|
raise SnapfsError("LVM-Werkzeuge sind nicht installiert")
|
||||||
|
vg = info.get("vgname") or ""
|
||||||
|
# Proxmox benennt Snapshot-LVs immer nach diesem Schema.
|
||||||
|
lv = "snap_%s_%s" % (volume.volname, self.snapname)
|
||||||
|
target = "%s/%s" % (vg, lv)
|
||||||
|
run(["lvchange", "-ay", "-K", "--readonly", target])
|
||||||
|
self._remember("lvm", target)
|
||||||
|
device = "/dev/%s/%s" % (vg, lv)
|
||||||
|
if not os.path.exists(device):
|
||||||
|
raise SnapfsError("%s ist nach dem Aktivieren nicht vorhanden" % device)
|
||||||
|
return device
|
||||||
|
|
||||||
|
def _map_qcow(self, info, volume):
|
||||||
|
if not have("qemu-nbd"):
|
||||||
|
raise SnapfsError("'qemu-nbd' ist nicht installiert (apt install qemu-utils)")
|
||||||
|
base = info.get("path") or ""
|
||||||
|
image = os.path.join(base, "images", str(self.guest.vmid), volume.volname)
|
||||||
|
if not os.path.exists(image):
|
||||||
|
raise SnapfsError("Abbilddatei nicht gefunden: %s" % image)
|
||||||
|
if not image.endswith(".qcow2"):
|
||||||
|
raise SnapfsError("nur qcow2 kann Snapshots enthalten (%s)"
|
||||||
|
% os.path.basename(image))
|
||||||
|
|
||||||
|
run(["modprobe", "nbd", "max_part=16"], check=False)
|
||||||
|
device = self._free_nbd()
|
||||||
|
run(["qemu-nbd", "--read-only", "--load-snapshot=%s" % self.snapname,
|
||||||
|
"--connect=%s" % device, image], timeout=180)
|
||||||
|
self._remember("nbd", device)
|
||||||
|
time.sleep(0.5)
|
||||||
|
return device
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _free_nbd():
|
||||||
|
for index in range(16):
|
||||||
|
device = "/dev/nbd%d" % index
|
||||||
|
if not os.path.exists(device):
|
||||||
|
continue
|
||||||
|
try:
|
||||||
|
with open("/sys/block/nbd%d/size" % index) as handle:
|
||||||
|
if handle.read().strip() == "0":
|
||||||
|
return device
|
||||||
|
except OSError:
|
||||||
|
continue
|
||||||
|
raise SnapfsError("kein freies /dev/nbdN vorhanden")
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _first_device(output):
|
||||||
|
for line in (output or "").splitlines():
|
||||||
|
line = line.strip()
|
||||||
|
if line.startswith("/dev/"):
|
||||||
|
return line
|
||||||
|
raise SnapfsError("Antwort ohne Geraetenamen: %s" % (output or "(leer)"))
|
||||||
|
|
||||||
|
# -- Partitionen und Dateisysteme -------------------------------------
|
||||||
|
|
||||||
|
def _scan(self, device_path, volume):
|
||||||
|
"""Partitionen des eingebundenen Geraets ermitteln."""
|
||||||
|
devices = self._lsblk(device_path, volume)
|
||||||
|
if len(devices) == 1 and not devices[0].mountable:
|
||||||
|
# Partitionstabelle vorhanden, aber noch nicht eingelesen
|
||||||
|
for tool in (["partx", "-a", device_path], ["kpartx", "-a", "-r", device_path]):
|
||||||
|
if have(tool[0]):
|
||||||
|
run(tool, check=False)
|
||||||
|
time.sleep(0.5)
|
||||||
|
devices = self._lsblk(device_path, volume)
|
||||||
|
if len(devices) > 1:
|
||||||
|
break
|
||||||
|
return devices
|
||||||
|
|
||||||
|
def _lsblk(self, device_path, volume):
|
||||||
|
try:
|
||||||
|
output = run(["lsblk", "-J", "-b", "-o",
|
||||||
|
"NAME,PATH,SIZE,FSTYPE,LABEL,TYPE", device_path])
|
||||||
|
data = json.loads(output)
|
||||||
|
except (SnapfsError, ValueError) as exc:
|
||||||
|
raise SnapfsError("Partitionen nicht lesbar: %s" % exc)
|
||||||
|
|
||||||
|
found = []
|
||||||
|
|
||||||
|
def walk(entries):
|
||||||
|
for entry in entries:
|
||||||
|
device = Device(
|
||||||
|
path=entry.get("path") or "",
|
||||||
|
name=entry.get("name") or "",
|
||||||
|
size=int(entry.get("size") or 0),
|
||||||
|
fstype=entry.get("fstype") or "",
|
||||||
|
label=entry.get("label") or "",
|
||||||
|
kind=entry.get("type") or "part",
|
||||||
|
volume=volume,
|
||||||
|
)
|
||||||
|
children = entry.get("children") or []
|
||||||
|
if device.path:
|
||||||
|
# Eine Platte mit Partitionen selbst nicht anbieten
|
||||||
|
if not (children and not device.fstype):
|
||||||
|
found.append(device)
|
||||||
|
if device.fstype == "LVM2_member":
|
||||||
|
self.notes.append(
|
||||||
|
"%s enthaelt LVM - im Gast angelegte Volume-Groups werden "
|
||||||
|
"nicht automatisch aktiviert (Namenskonflikte mit dem Host)"
|
||||||
|
% device.path)
|
||||||
|
walk(children)
|
||||||
|
|
||||||
|
walk(data.get("blockdevices") or [])
|
||||||
|
return found
|
||||||
|
|
||||||
|
def mount(self, device):
|
||||||
|
if device.path in self.mounts:
|
||||||
|
return self.mounts[device.path]
|
||||||
|
|
||||||
|
name = "%s-%d-%s-%s" % (self.guest.type, self.guest.vmid,
|
||||||
|
re.sub(r"[^A-Za-z0-9_.-]", "_", self.snapname),
|
||||||
|
os.path.basename(device.path))
|
||||||
|
mountpoint = os.path.join(MOUNT_ROOT, name)
|
||||||
|
os.makedirs(mountpoint, exist_ok=True)
|
||||||
|
self._remember("dir", mountpoint)
|
||||||
|
|
||||||
|
options = MOUNT_OPTIONS.get(device.fstype, DEFAULT_MOUNT_OPTIONS)
|
||||||
|
attempts = [options]
|
||||||
|
if options != DEFAULT_MOUNT_OPTIONS:
|
||||||
|
attempts.append(DEFAULT_MOUNT_OPTIONS) # notfalls schlicht "ro"
|
||||||
|
|
||||||
|
last = None
|
||||||
|
for option_set in attempts:
|
||||||
|
try:
|
||||||
|
run(["mount", "-o", ",".join(option_set), "-t", device.fstype or "auto",
|
||||||
|
device.path, mountpoint])
|
||||||
|
self.mounts[device.path] = mountpoint
|
||||||
|
self._remember("mount", mountpoint)
|
||||||
|
log.info("%s (%s) eingehaengt unter %s",
|
||||||
|
device.path, device.fstype, mountpoint)
|
||||||
|
return mountpoint
|
||||||
|
except SnapfsError as exc:
|
||||||
|
last = exc
|
||||||
|
raise SnapfsError("%s nicht einhaengbar: %s" % (device.path, last))
|
||||||
|
|
||||||
|
# -- aufraeumen -------------------------------------------------------
|
||||||
|
|
||||||
|
def _remember(self, kind, value):
|
||||||
|
self._cleanup.append((kind, value))
|
||||||
|
_registry_add(kind, value)
|
||||||
|
|
||||||
|
def close(self):
|
||||||
|
for kind, value in reversed(self._cleanup):
|
||||||
|
try:
|
||||||
|
if kind == "mount":
|
||||||
|
_umount(value)
|
||||||
|
elif kind == "rbd":
|
||||||
|
run(["rbd", "unmap", value], check=False)
|
||||||
|
elif kind == "rbd-nbd":
|
||||||
|
run(["rbd-nbd", "unmap", value], check=False)
|
||||||
|
elif kind == "nbd":
|
||||||
|
run(["qemu-nbd", "--disconnect", value], check=False)
|
||||||
|
elif kind == "lvm":
|
||||||
|
run(["lvchange", "-an", value], check=False)
|
||||||
|
elif kind == "zfsclone":
|
||||||
|
run(["zfs", "destroy", value], check=False)
|
||||||
|
elif kind == "dir" and os.path.isdir(value):
|
||||||
|
os.rmdir(value)
|
||||||
|
except (SnapfsError, OSError) as exc:
|
||||||
|
log.warning("Aufraeumen von %s %s fehlgeschlagen: %s", kind, value, exc)
|
||||||
|
_registry_remove(kind, value)
|
||||||
|
self._cleanup = []
|
||||||
|
self.mounts = {}
|
||||||
|
|
||||||
|
def __enter__(self):
|
||||||
|
return self
|
||||||
|
|
||||||
|
def __exit__(self, *_exc):
|
||||||
|
self.close()
|
||||||
|
return False
|
||||||
|
|
||||||
|
|
||||||
|
def list_snapshots(proxmox, guest):
|
||||||
|
"""Snapshots eines Gastes, neueste zuerst."""
|
||||||
|
snapshots = proxmox.list_snapshots(guest)
|
||||||
|
return sorted(snapshots, key=lambda s: s.snaptime, reverse=True)
|
||||||
+45
-205
@@ -9,6 +9,9 @@ import curses
|
|||||||
import os
|
import os
|
||||||
import subprocess
|
import subprocess
|
||||||
|
|
||||||
|
from .curses_util import (C_DIM, C_FOOTER, C_HEADER, C_OK, C_SEL, C_WARN,
|
||||||
|
choose, confirm, fill, fill_row, init_colors, is_enter,
|
||||||
|
is_escape, keybar, message, prompt, put, read_key)
|
||||||
from .config import (WEEKDAY_NAMES, Config, ConfigError, Group, clone_group,
|
from .config import (WEEKDAY_NAMES, Config, ConfigError, Group, clone_group,
|
||||||
load_config, parse_time_of_day, save_config)
|
load_config, parse_time_of_day, save_config)
|
||||||
from .naming import effective_slug
|
from .naming import effective_slug
|
||||||
@@ -32,8 +35,6 @@ TYPE_CHOICES = [
|
|||||||
(["lxc"], "nur Container (LXC)"),
|
(["lxc"], "nur Container (LXC)"),
|
||||||
]
|
]
|
||||||
|
|
||||||
C_HEADER, C_FOOTER, C_SEL, C_WARN, C_OK, C_DIM = 1, 2, 3, 4, 5, 6
|
|
||||||
|
|
||||||
SERVICE = "pvesnap.service"
|
SERVICE = "pvesnap.service"
|
||||||
|
|
||||||
# Tastenleiste der Gruppenliste: (Taste, lange Beschriftung, kurze Beschriftung)
|
# Tastenleiste der Gruppenliste: (Taste, lange Beschriftung, kurze Beschriftung)
|
||||||
@@ -93,80 +94,6 @@ def service_text():
|
|||||||
"activating": "Dienst: startet"}.get(state, "Dienst: %s" % state)
|
"activating": "Dienst: startet"}.get(state, "Dienst: %s" % state)
|
||||||
|
|
||||||
|
|
||||||
def _keybar(width, items):
|
|
||||||
"""Tastenleiste als Liste von Zeilen, passend zur Breite des Terminals.
|
|
||||||
|
|
||||||
Reicht der Platz nicht fuer eine Zeile, wird auf zwei Zeilen umgebrochen;
|
|
||||||
bei ganz schmalen Terminals bleiben nur noch die Tasten uebrig.
|
|
||||||
"""
|
|
||||||
def join(entries, index):
|
|
||||||
return " | ".join("%s %s" % (entry[0], entry[index]) for entry in entries)
|
|
||||||
|
|
||||||
long_text = join(items, 1)
|
|
||||||
if len(long_text) + 2 <= width:
|
|
||||||
return [long_text]
|
|
||||||
|
|
||||||
half = (len(items) + 1) // 2
|
|
||||||
first, second = join(items[:half], 1), join(items[half:], 1)
|
|
||||||
if max(len(first), len(second)) + 2 <= width:
|
|
||||||
return [first, second]
|
|
||||||
|
|
||||||
short_text = join(items, 2)
|
|
||||||
if len(short_text) + 2 <= width:
|
|
||||||
return [short_text]
|
|
||||||
|
|
||||||
first, second = join(items[:half], 2), join(items[half:], 2)
|
|
||||||
if max(len(first), len(second)) + 2 <= width:
|
|
||||||
return [first, second]
|
|
||||||
return [" ".join(entry[0] for entry in items)]
|
|
||||||
|
|
||||||
|
|
||||||
# ---------------------------------------------------------------------------
|
|
||||||
# Zeichen-Helfer
|
|
||||||
# ---------------------------------------------------------------------------
|
|
||||||
|
|
||||||
def _put(win, y, x, text, attr=0):
|
|
||||||
"""addstr, das bei zu kleinem Terminal nicht abstuerzt."""
|
|
||||||
height, width = win.getmaxyx()
|
|
||||||
if y < 0 or y >= height or x >= width:
|
|
||||||
return
|
|
||||||
try:
|
|
||||||
win.addstr(y, x, str(text)[: max(0, width - x - 1)], attr)
|
|
||||||
except curses.error:
|
|
||||||
pass
|
|
||||||
|
|
||||||
|
|
||||||
def _fill(win, y, text, attr):
|
|
||||||
height, width = win.getmaxyx()
|
|
||||||
if y < 0 or y >= height:
|
|
||||||
return
|
|
||||||
try:
|
|
||||||
win.addstr(y, 0, str(text).ljust(width - 1)[: width - 1], attr)
|
|
||||||
except curses.error:
|
|
||||||
pass
|
|
||||||
|
|
||||||
|
|
||||||
def _read_key(win):
|
|
||||||
try:
|
|
||||||
return win.get_wch()
|
|
||||||
except curses.error:
|
|
||||||
return None
|
|
||||||
except KeyboardInterrupt:
|
|
||||||
return "\x1b"
|
|
||||||
|
|
||||||
|
|
||||||
def _is_enter(key):
|
|
||||||
return key in ("\n", "\r", curses.KEY_ENTER)
|
|
||||||
|
|
||||||
|
|
||||||
def _is_escape(key):
|
|
||||||
return key == "\x1b"
|
|
||||||
|
|
||||||
|
|
||||||
def _is_backspace(key):
|
|
||||||
return key in ("\x7f", "\b", "\x08", curses.KEY_BACKSPACE)
|
|
||||||
|
|
||||||
|
|
||||||
class Editor:
|
class Editor:
|
||||||
def __init__(self, path):
|
def __init__(self, path):
|
||||||
self.path = path
|
self.path = path
|
||||||
@@ -206,99 +133,25 @@ class Editor:
|
|||||||
def _frame(self, win, title, subtitle, keys):
|
def _frame(self, win, title, subtitle, keys):
|
||||||
win.erase()
|
win.erase()
|
||||||
height, width = win.getmaxyx()
|
height, width = win.getmaxyx()
|
||||||
_fill(win, 0, " pvesnap - %s" % title, curses.color_pair(C_HEADER) | curses.A_BOLD)
|
fill(win, 0, " pvesnap - %s" % title, curses.color_pair(C_HEADER) | curses.A_BOLD)
|
||||||
marker = "*" if self.dirty else " "
|
marker = "*" if self.dirty else " "
|
||||||
_fill(win, 1, " %s%s" % (marker, subtitle), curses.color_pair(C_DIM))
|
fill(win, 1, " %s%s" % (marker, subtitle), curses.color_pair(C_DIM))
|
||||||
lines = list(keys) if isinstance(keys, (list, tuple)) else [keys]
|
lines = list(keys) if isinstance(keys, (list, tuple)) else [keys]
|
||||||
for offset, line in enumerate(reversed(lines)):
|
for offset, line in enumerate(reversed(lines)):
|
||||||
_fill(win, height - 1 - offset, " " + line, curses.color_pair(C_FOOTER))
|
fill(win, height - 1 - offset, " " + line, curses.color_pair(C_FOOTER))
|
||||||
return height, width
|
return height, width
|
||||||
|
|
||||||
def _message(self, win, text, error=False):
|
def _message(self, win, text, error=False):
|
||||||
height, _ = win.getmaxyx()
|
return message(win, text, error)
|
||||||
attr = curses.color_pair(C_WARN if error else C_OK) | curses.A_BOLD
|
|
||||||
_fill(win, height - 2, " " + str(text) + " [Taste druecken]", attr)
|
|
||||||
win.refresh()
|
|
||||||
_read_key(win)
|
|
||||||
|
|
||||||
def _confirm(self, win, question):
|
def _confirm(self, win, question):
|
||||||
height, _ = win.getmaxyx()
|
return confirm(win, question)
|
||||||
_fill(win, height - 2, " %s [j/n]" % question,
|
|
||||||
curses.color_pair(C_WARN) | curses.A_BOLD)
|
|
||||||
win.refresh()
|
|
||||||
while True:
|
|
||||||
key = _read_key(win)
|
|
||||||
if key in ("j", "J", "y", "Y"):
|
|
||||||
return True
|
|
||||||
if key in ("n", "N") or _is_escape(key):
|
|
||||||
return False
|
|
||||||
|
|
||||||
def _prompt(self, win, label, initial=""):
|
def _prompt(self, win, label, initial=""):
|
||||||
"""Einzeilige Eingabe am unteren Rand. None = abgebrochen."""
|
return prompt(win, label, initial)
|
||||||
height, width = win.getmaxyx()
|
|
||||||
buffer = list(str(initial))
|
|
||||||
curses.curs_set(1)
|
|
||||||
try:
|
|
||||||
while True:
|
|
||||||
text = "".join(buffer)
|
|
||||||
prompt = " %s: " % label
|
|
||||||
visible = width - len(prompt) - 2
|
|
||||||
shown = text[-visible:] if visible > 0 and len(text) > visible else text
|
|
||||||
_fill(win, height - 2, prompt + shown, curses.color_pair(C_SEL))
|
|
||||||
try:
|
|
||||||
win.move(height - 2, min(width - 2, len(prompt) + len(shown)))
|
|
||||||
except curses.error:
|
|
||||||
pass
|
|
||||||
win.refresh()
|
|
||||||
|
|
||||||
key = _read_key(win)
|
|
||||||
if key is None:
|
|
||||||
continue
|
|
||||||
if _is_enter(key):
|
|
||||||
return "".join(buffer).strip()
|
|
||||||
if _is_escape(key):
|
|
||||||
return None
|
|
||||||
if _is_backspace(key):
|
|
||||||
if buffer:
|
|
||||||
buffer.pop()
|
|
||||||
continue
|
|
||||||
if key == "\x15": # Strg-U
|
|
||||||
buffer = []
|
|
||||||
continue
|
|
||||||
if isinstance(key, str) and key.isprintable():
|
|
||||||
buffer.append(key)
|
|
||||||
finally:
|
|
||||||
curses.curs_set(0)
|
|
||||||
|
|
||||||
def _choose(self, win, title, entries, current=0):
|
def _choose(self, win, title, entries, current=0):
|
||||||
"""Kleines Auswahlfenster. entries: Liste von (wert, beschriftung)."""
|
return choose(win, title, entries, current)
|
||||||
height, width = win.getmaxyx()
|
|
||||||
box_h = min(len(entries) + 4, height - 2)
|
|
||||||
box_w = min(max([len(title)] + [len(e[1]) for e in entries]) + 8, width - 2)
|
|
||||||
top = max(0, (height - box_h) // 2)
|
|
||||||
left = max(0, (width - box_w) // 2)
|
|
||||||
box = curses.newwin(box_h, box_w, top, left)
|
|
||||||
box.keypad(True)
|
|
||||||
index = max(0, min(current, len(entries) - 1))
|
|
||||||
|
|
||||||
while True:
|
|
||||||
box.erase()
|
|
||||||
box.box()
|
|
||||||
_put(box, 0, 2, " %s " % title, curses.A_BOLD)
|
|
||||||
for row, (_value, label) in enumerate(entries[: box_h - 4]):
|
|
||||||
attr = curses.color_pair(C_SEL) if row == index else 0
|
|
||||||
_put(box, row + 2, 2, " " + label.ljust(box_w - 5), attr)
|
|
||||||
box.refresh()
|
|
||||||
|
|
||||||
key = _read_key(box)
|
|
||||||
if key in (curses.KEY_UP, "k"):
|
|
||||||
index = (index - 1) % len(entries)
|
|
||||||
elif key in (curses.KEY_DOWN, "j"):
|
|
||||||
index = (index + 1) % len(entries)
|
|
||||||
elif _is_enter(key):
|
|
||||||
return entries[index][0]
|
|
||||||
elif _is_escape(key) or key == "q":
|
|
||||||
return None
|
|
||||||
|
|
||||||
# -- Hauptschleife ----------------------------------------------------
|
# -- Hauptschleife ----------------------------------------------------
|
||||||
|
|
||||||
@@ -306,17 +159,7 @@ class Editor:
|
|||||||
curses.curs_set(0)
|
curses.curs_set(0)
|
||||||
if hasattr(curses, "set_escdelay"):
|
if hasattr(curses, "set_escdelay"):
|
||||||
curses.set_escdelay(25)
|
curses.set_escdelay(25)
|
||||||
try:
|
init_colors()
|
||||||
curses.start_color()
|
|
||||||
curses.use_default_colors()
|
|
||||||
curses.init_pair(C_HEADER, curses.COLOR_WHITE, curses.COLOR_BLUE)
|
|
||||||
curses.init_pair(C_FOOTER, curses.COLOR_BLACK, curses.COLOR_WHITE)
|
|
||||||
curses.init_pair(C_SEL, curses.COLOR_BLACK, curses.COLOR_CYAN)
|
|
||||||
curses.init_pair(C_WARN, curses.COLOR_WHITE, curses.COLOR_RED)
|
|
||||||
curses.init_pair(C_OK, curses.COLOR_BLACK, curses.COLOR_GREEN)
|
|
||||||
curses.init_pair(C_DIM, -1, -1)
|
|
||||||
except curses.error:
|
|
||||||
pass
|
|
||||||
stdscr.keypad(True)
|
stdscr.keypad(True)
|
||||||
self.screen_groups(stdscr)
|
self.screen_groups(stdscr)
|
||||||
|
|
||||||
@@ -336,16 +179,16 @@ class Editor:
|
|||||||
else "…" + self.path[-(room - 1):])
|
else "…" + self.path[-(room - 1):])
|
||||||
height, width = self._frame(
|
height, width = self._frame(
|
||||||
win, "Gruppen", "Datei: %s [%s]" % (path_text, status),
|
win, "Gruppen", "Datei: %s [%s]" % (path_text, status),
|
||||||
_keybar(width_now, GROUP_KEYS))
|
keybar(width_now, GROUP_KEYS))
|
||||||
|
|
||||||
_put(win, 3, 2, "Gruppe".ljust(18) + "Aktiv " + "Zeitplan".ljust(30)
|
put(win, 3, 2, "Gruppe".ljust(18) + "Aktiv " + "Zeitplan".ljust(30)
|
||||||
+ "Behalte".ljust(20) + "Auswahl", curses.A_BOLD)
|
+ "Behalte".ljust(20) + "Auswahl", curses.A_BOLD)
|
||||||
_put(win, 4, 2, "-" * max(0, width - 4), curses.color_pair(C_DIM))
|
put(win, 4, 2, "-" * max(0, width - 4), curses.color_pair(C_DIM))
|
||||||
|
|
||||||
if not groups:
|
if not groups:
|
||||||
_put(win, 6, 4, "Noch keine Gruppe angelegt - mit 'n' eine erste anlegen.")
|
put(win, 6, 4, "Noch keine Gruppe angelegt - mit 'n' eine erste anlegen.")
|
||||||
_put(win, 8, 4, "Beispiel: 'stuendlich' alle 1h, 24 Snapshots behalten;")
|
put(win, 8, 4, "Beispiel: 'stuendlich' alle 1h, 24 Snapshots behalten;")
|
||||||
_put(win, 9, 4, " 'taeglich' um 02:30, 14 Tage Vorhaltezeit.")
|
put(win, 9, 4, " 'taeglich' um 02:30, 14 Tage Vorhaltezeit.")
|
||||||
visible = max(1, height - 8)
|
visible = max(1, height - 8)
|
||||||
start = max(0, min(index - visible // 2, max(0, len(groups) - visible)))
|
start = max(0, min(index - visible // 2, max(0, len(groups) - visible)))
|
||||||
|
|
||||||
@@ -360,15 +203,15 @@ class Editor:
|
|||||||
truncate(describe(group), 29).ljust(30),
|
truncate(describe(group), 29).ljust(30),
|
||||||
truncate(keep, 19).ljust(20),
|
truncate(keep, 19).ljust(20),
|
||||||
truncate(self._selection_text(group), max(4, width - 80))))
|
truncate(self._selection_text(group), max(4, width - 80))))
|
||||||
_fill_row(win, 5 + row, 2, line, width, attr)
|
fill_row(win, 5 + row, 2, line, width, attr)
|
||||||
|
|
||||||
problems = self.config.validate()
|
problems = self.config.validate()
|
||||||
if problems:
|
if problems:
|
||||||
_fill(win, height - 2, " %d Hinweis(e) - 'p' zeigt Details"
|
fill(win, height - 2, " %d Hinweis(e) - 'p' zeigt Details"
|
||||||
% len(problems), curses.color_pair(C_WARN))
|
% len(problems), curses.color_pair(C_WARN))
|
||||||
|
|
||||||
win.refresh()
|
win.refresh()
|
||||||
key = _read_key(win)
|
key = read_key(win)
|
||||||
|
|
||||||
if key in (curses.KEY_UP, "k"):
|
if key in (curses.KEY_UP, "k"):
|
||||||
index -= 1
|
index -= 1
|
||||||
@@ -378,7 +221,7 @@ class Editor:
|
|||||||
index = 0
|
index = 0
|
||||||
elif key == curses.KEY_END:
|
elif key == curses.KEY_END:
|
||||||
index = len(groups) - 1
|
index = len(groups) - 1
|
||||||
elif _is_enter(key) and groups:
|
elif is_enter(key) and groups:
|
||||||
self.screen_group(win, groups[index])
|
self.screen_group(win, groups[index])
|
||||||
elif key == "n":
|
elif key == "n":
|
||||||
self._new_group(win)
|
self._new_group(win)
|
||||||
@@ -405,7 +248,7 @@ class Editor:
|
|||||||
self._save(win)
|
self._save(win)
|
||||||
elif key in ("r", "R"):
|
elif key in ("r", "R"):
|
||||||
self._reload_service(win)
|
self._reload_service(win)
|
||||||
elif key in ("q", "Q") or _is_escape(key):
|
elif key in ("q", "Q") or is_escape(key):
|
||||||
if self.dirty and not self._confirm(win, "Ungespeicherte Aenderungen verwerfen?"):
|
if self.dirty and not self._confirm(win, "Ungespeicherte Aenderungen verwerfen?"):
|
||||||
continue
|
continue
|
||||||
return
|
return
|
||||||
@@ -441,11 +284,11 @@ class Editor:
|
|||||||
height, width = self._frame(win, "Hinweise zur Konfiguration", self.path,
|
height, width = self._frame(win, "Hinweise zur Konfiguration", self.path,
|
||||||
"beliebige Taste = zurueck")
|
"beliebige Taste = zurueck")
|
||||||
if not problems:
|
if not problems:
|
||||||
_put(win, 4, 4, "Alles in Ordnung.", curses.color_pair(C_OK))
|
put(win, 4, 4, "Alles in Ordnung.", curses.color_pair(C_OK))
|
||||||
for row, problem in enumerate(problems[: height - 6]):
|
for row, problem in enumerate(problems[: height - 6]):
|
||||||
_put(win, 4 + row, 4, truncate("- " + problem, width - 6))
|
put(win, 4 + row, 4, truncate("- " + problem, width - 6))
|
||||||
win.refresh()
|
win.refresh()
|
||||||
_read_key(win)
|
read_key(win)
|
||||||
|
|
||||||
def _save(self, win, offer_reload=True):
|
def _save(self, win, offer_reload=True):
|
||||||
problems = self.config.validate()
|
problems = self.config.validate()
|
||||||
@@ -511,7 +354,7 @@ class Editor:
|
|||||||
|
|
||||||
def _run_service_action(self, win, action, past_tense):
|
def _run_service_action(self, win, action, past_tense):
|
||||||
height, _ = win.getmaxyx()
|
height, _ = win.getmaxyx()
|
||||||
_fill(win, height - 2, " systemctl %s %s ..." % (action, SERVICE),
|
fill(win, height - 2, " systemctl %s %s ..." % (action, SERVICE),
|
||||||
curses.color_pair(C_SEL))
|
curses.color_pair(C_SEL))
|
||||||
win.refresh()
|
win.refresh()
|
||||||
code, output = _systemctl(action, SERVICE)
|
code, output = _systemctl(action, SERVICE)
|
||||||
@@ -553,16 +396,16 @@ class Editor:
|
|||||||
break
|
break
|
||||||
kind, label, value, _handler = fields[position]
|
kind, label, value, _handler = fields[position]
|
||||||
if kind == "-":
|
if kind == "-":
|
||||||
_put(win, 3 + row, 2, "-- %s " % label + "-" * max(0, width - len(label) - 8),
|
put(win, 3 + row, 2, "-- %s " % label + "-" * max(0, width - len(label) - 8),
|
||||||
curses.color_pair(C_DIM) | curses.A_BOLD)
|
curses.color_pair(C_DIM) | curses.A_BOLD)
|
||||||
continue
|
continue
|
||||||
attr = curses.color_pair(C_SEL) if position == index else 0
|
attr = curses.color_pair(C_SEL) if position == index else 0
|
||||||
_fill_row(win, 3 + row, 2,
|
fill_row(win, 3 + row, 2,
|
||||||
truncate(label, 30).ljust(32) + truncate(value, max(4, width - 40)),
|
truncate(label, 30).ljust(32) + truncate(value, max(4, width - 40)),
|
||||||
width, attr)
|
width, attr)
|
||||||
|
|
||||||
win.refresh()
|
win.refresh()
|
||||||
key = _read_key(win)
|
key = read_key(win)
|
||||||
|
|
||||||
if key in (curses.KEY_UP, "k"):
|
if key in (curses.KEY_UP, "k"):
|
||||||
index = self._step(fields, index, -1)
|
index = self._step(fields, index, -1)
|
||||||
@@ -572,14 +415,14 @@ class Editor:
|
|||||||
index = self._step(fields, min(index + 10, len(fields) - 1), +1, land=True)
|
index = self._step(fields, min(index + 10, len(fields) - 1), +1, land=True)
|
||||||
elif key == curses.KEY_PPAGE:
|
elif key == curses.KEY_PPAGE:
|
||||||
index = self._step(fields, max(index - 10, 0), -1, land=True)
|
index = self._step(fields, max(index - 10, 0), -1, land=True)
|
||||||
elif _is_enter(key) or key == " ":
|
elif is_enter(key) or key == " ":
|
||||||
handler = fields[index][3]
|
handler = fields[index][3]
|
||||||
if handler:
|
if handler:
|
||||||
handler(win)
|
handler(win)
|
||||||
self.dirty = True
|
self.dirty = True
|
||||||
elif key == "v":
|
elif key == "v":
|
||||||
self._pick_vms(win, group)
|
self._pick_vms(win, group)
|
||||||
elif key in ("q", "Q") or _is_escape(key):
|
elif key in ("q", "Q") or is_escape(key):
|
||||||
return
|
return
|
||||||
|
|
||||||
@staticmethod
|
@staticmethod
|
||||||
@@ -808,7 +651,7 @@ class Editor:
|
|||||||
"Leer Auswaehlen | a Alle | n Keine | i Umkehren | / Filter | "
|
"Leer Auswaehlen | a Alle | n Keine | i Umkehren | / Filter | "
|
||||||
"Enter Uebernehmen | q Abbruch")
|
"Enter Uebernehmen | q Abbruch")
|
||||||
|
|
||||||
_put(win, 3, 2, " VMID Typ Name".ljust(46) + "Node".ljust(14)
|
put(win, 3, 2, " VMID Typ Name".ljust(46) + "Node".ljust(14)
|
||||||
+ "Status".ljust(10) + "Tags", curses.A_BOLD)
|
+ "Status".ljust(10) + "Tags", curses.A_BOLD)
|
||||||
visible = max(1, height - 6)
|
visible = max(1, height - 6)
|
||||||
if index < top:
|
if index < top:
|
||||||
@@ -831,10 +674,10 @@ class Editor:
|
|||||||
truncate(guest.node, 12).ljust(14),
|
truncate(guest.node, 12).ljust(14),
|
||||||
truncate(guest.status, 9).ljust(10),
|
truncate(guest.status, 9).ljust(10),
|
||||||
truncate(",".join(guest.tags) or "-", 20)))
|
truncate(",".join(guest.tags) or "-", 20)))
|
||||||
_fill_row(win, 4 + row, 2, line, width, attr)
|
fill_row(win, 4 + row, 2, line, width, attr)
|
||||||
|
|
||||||
win.refresh()
|
win.refresh()
|
||||||
key = _read_key(win)
|
key = read_key(win)
|
||||||
|
|
||||||
if key in (curses.KEY_UP, "k"):
|
if key in (curses.KEY_UP, "k"):
|
||||||
index -= 1
|
index -= 1
|
||||||
@@ -872,11 +715,11 @@ class Editor:
|
|||||||
elif key == "r":
|
elif key == "r":
|
||||||
self.guests(refresh=True)
|
self.guests(refresh=True)
|
||||||
guests = self._guests
|
guests = self._guests
|
||||||
elif _is_enter(key):
|
elif is_enter(key):
|
||||||
group.vmids = sorted(chosen)
|
group.vmids = sorted(chosen)
|
||||||
self.dirty = True
|
self.dirty = True
|
||||||
return
|
return
|
||||||
elif key in ("q", "Q") or _is_escape(key):
|
elif key in ("q", "Q") or is_escape(key):
|
||||||
return
|
return
|
||||||
index = max(0, min(index, max(0, len(shown) - 1)))
|
index = max(0, min(index, max(0, len(shown) - 1)))
|
||||||
|
|
||||||
@@ -923,24 +766,24 @@ class Editor:
|
|||||||
"Enter Aendern | q zurueck")
|
"Enter Aendern | q zurueck")
|
||||||
for row, (label, value, _kind, _key) in enumerate(fields):
|
for row, (label, value, _kind, _key) in enumerate(fields):
|
||||||
attr = curses.color_pair(C_SEL) if row == index else 0
|
attr = curses.color_pair(C_SEL) if row == index else 0
|
||||||
_fill_row(win, 4 + row, 2,
|
fill_row(win, 4 + row, 2,
|
||||||
truncate(label, 32).ljust(34) + truncate(str(value), max(4, width - 42)),
|
truncate(label, 32).ljust(34) + truncate(str(value), max(4, width - 42)),
|
||||||
width, attr)
|
width, attr)
|
||||||
_put(win, 6 + len(fields), 2,
|
put(win, 6 + len(fields), 2,
|
||||||
"Platzhalter der Beschreibung: {group} {vmid} {name} {node} {type} "
|
"Platzhalter der Beschreibung: {group} {vmid} {name} {node} {type} "
|
||||||
"{datetime} {date} {time} {keep_time} {keep_count} {schedule}",
|
"{datetime} {date} {time} {keep_time} {keep_count} {schedule}",
|
||||||
curses.color_pair(C_DIM))
|
curses.color_pair(C_DIM))
|
||||||
win.refresh()
|
win.refresh()
|
||||||
|
|
||||||
key = _read_key(win)
|
key = read_key(win)
|
||||||
if key in (curses.KEY_UP, "k"):
|
if key in (curses.KEY_UP, "k"):
|
||||||
index -= 1
|
index -= 1
|
||||||
elif key in (curses.KEY_DOWN, "j"):
|
elif key in (curses.KEY_DOWN, "j"):
|
||||||
index += 1
|
index += 1
|
||||||
elif _is_enter(key) or key == " ":
|
elif is_enter(key) or key == " ":
|
||||||
label, _value, kind, attribute = fields[index]
|
label, _value, kind, attribute = fields[index]
|
||||||
self._edit_global(win, label, kind, attribute)
|
self._edit_global(win, label, kind, attribute)
|
||||||
elif key in ("q", "Q") or _is_escape(key):
|
elif key in ("q", "Q") or is_escape(key):
|
||||||
return
|
return
|
||||||
|
|
||||||
def _edit_global(self, win, label, kind, attribute):
|
def _edit_global(self, win, label, kind, attribute):
|
||||||
@@ -994,7 +837,7 @@ class Editor:
|
|||||||
height, width = self._frame(win, "Uebersicht: welche VM in welcher Gruppe?",
|
height, width = self._frame(win, "Uebersicht: welche VM in welcher Gruppe?",
|
||||||
self._inventory_error or "%d Gaeste" % len(guests),
|
self._inventory_error or "%d Gaeste" % len(guests),
|
||||||
"Pfeiltasten Blaettern | r Neu laden | q zurueck")
|
"Pfeiltasten Blaettern | r Neu laden | q zurueck")
|
||||||
_put(win, 3, 2, "VMID".ljust(8) + "Name".ljust(26) + "Status".ljust(10) + "Gruppen",
|
put(win, 3, 2, "VMID".ljust(8) + "Name".ljust(26) + "Status".ljust(10) + "Gruppen",
|
||||||
curses.A_BOLD)
|
curses.A_BOLD)
|
||||||
rows = []
|
rows = []
|
||||||
for guest in guests:
|
for guest in guests:
|
||||||
@@ -1009,7 +852,7 @@ class Editor:
|
|||||||
break
|
break
|
||||||
guest, names = rows[position]
|
guest, names = rows[position]
|
||||||
attr = 0 if names else curses.color_pair(C_DIM) | curses.A_DIM
|
attr = 0 if names else curses.color_pair(C_DIM) | curses.A_DIM
|
||||||
_put(win, 4 + row, 2,
|
put(win, 4 + row, 2,
|
||||||
truncate(str(guest.vmid), 7).ljust(8)
|
truncate(str(guest.vmid), 7).ljust(8)
|
||||||
+ truncate(guest.name or "-", 24).ljust(26)
|
+ truncate(guest.name or "-", 24).ljust(26)
|
||||||
+ truncate(guest.status, 9).ljust(10)
|
+ truncate(guest.status, 9).ljust(10)
|
||||||
@@ -1017,7 +860,7 @@ class Editor:
|
|||||||
attr)
|
attr)
|
||||||
win.refresh()
|
win.refresh()
|
||||||
|
|
||||||
key = _read_key(win)
|
key = read_key(win)
|
||||||
if key == curses.KEY_DOWN:
|
if key == curses.KEY_DOWN:
|
||||||
top += 1
|
top += 1
|
||||||
elif key == curses.KEY_UP:
|
elif key == curses.KEY_UP:
|
||||||
@@ -1028,7 +871,7 @@ class Editor:
|
|||||||
top -= visible
|
top -= visible
|
||||||
elif key == "r":
|
elif key == "r":
|
||||||
guests = self.guests(refresh=True)
|
guests = self.guests(refresh=True)
|
||||||
elif key in ("q", "Q") or _is_escape(key):
|
elif key in ("q", "Q") or is_escape(key):
|
||||||
return
|
return
|
||||||
top = max(0, top)
|
top = max(0, top)
|
||||||
|
|
||||||
@@ -1047,9 +890,6 @@ def _preview_next(group):
|
|||||||
moment.strftime("%d.%m.%Y %H:%M"), describe(group))
|
moment.strftime("%d.%m.%Y %H:%M"), describe(group))
|
||||||
|
|
||||||
|
|
||||||
def _fill_row(win, y, x, text, width, attr):
|
|
||||||
_put(win, y, x, str(text).ljust(max(0, width - x - 1))[: max(0, width - x - 1)], attr)
|
|
||||||
|
|
||||||
|
|
||||||
def run_editor(path):
|
def run_editor(path):
|
||||||
editor = Editor(path)
|
editor = Editor(path)
|
||||||
|
|||||||
@@ -0,0 +1,5 @@
|
|||||||
|
"""Web-Oberflaeche von pvesnap: Snapshot-Inhalte im Browser herunterladen."""
|
||||||
|
|
||||||
|
from .server import main
|
||||||
|
|
||||||
|
__all__ = ["main"]
|
||||||
@@ -0,0 +1,6 @@
|
|||||||
|
import sys
|
||||||
|
|
||||||
|
from .server import main
|
||||||
|
|
||||||
|
if __name__ == "__main__":
|
||||||
|
sys.exit(main())
|
||||||
@@ -0,0 +1,121 @@
|
|||||||
|
"""HTML-Geruest und Stylesheet der Web-Oberflaeche.
|
||||||
|
|
||||||
|
Alles ist eingebettet - die Seite laedt nichts aus dem Internet nach und
|
||||||
|
funktioniert damit auch in abgeschotteten Netzen.
|
||||||
|
"""
|
||||||
|
|
||||||
|
from __future__ import annotations
|
||||||
|
|
||||||
|
STYLE = """
|
||||||
|
:root {
|
||||||
|
color-scheme: light dark;
|
||||||
|
--bg: #f6f7f9; --fg: #1c1f24; --muted: #6b7280; --line: #d8dce3;
|
||||||
|
--card: #ffffff; --accent: #2563eb; --accent-fg: #ffffff; --hover: #eef2ff;
|
||||||
|
}
|
||||||
|
@media (prefers-color-scheme: dark) {
|
||||||
|
:root {
|
||||||
|
--bg: #16181d; --fg: #e6e8ec; --muted: #9aa1ac; --line: #2c313a;
|
||||||
|
--card: #1e2127; --accent: #4b82f0; --accent-fg: #0b0d10; --hover: #232a39;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
* { box-sizing: border-box; }
|
||||||
|
body {
|
||||||
|
margin: 0; background: var(--bg); color: var(--fg);
|
||||||
|
font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
|
||||||
|
}
|
||||||
|
header {
|
||||||
|
background: var(--card); border-bottom: 1px solid var(--line);
|
||||||
|
padding: .7rem 1rem; display: flex; gap: 1rem; align-items: center;
|
||||||
|
flex-wrap: wrap; position: sticky; top: 0; z-index: 5;
|
||||||
|
}
|
||||||
|
header h1 { font-size: 1rem; margin: 0; font-weight: 650; }
|
||||||
|
header .spacer { flex: 1 1 auto; }
|
||||||
|
main { padding: 1rem; max-width: 1200px; margin: 0 auto; }
|
||||||
|
a { color: var(--accent); text-decoration: none; }
|
||||||
|
a:hover { text-decoration: underline; }
|
||||||
|
.muted { color: var(--muted); }
|
||||||
|
.card {
|
||||||
|
background: var(--card); border: 1px solid var(--line);
|
||||||
|
border-radius: 10px; padding: .25rem .75rem; margin-bottom: 1rem;
|
||||||
|
}
|
||||||
|
table { width: 100%; border-collapse: collapse; }
|
||||||
|
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--line); }
|
||||||
|
th { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
|
||||||
|
tr:last-child td { border-bottom: 0; }
|
||||||
|
tbody tr:hover { background: var(--hover); }
|
||||||
|
td.size, th.size { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
|
||||||
|
td.when, th.when { white-space: nowrap; color: var(--muted); font-size: .9em; }
|
||||||
|
td.pick { width: 2.2rem; }
|
||||||
|
.name { display: flex; gap: .5rem; align-items: center; word-break: break-all; }
|
||||||
|
.icon { width: 1.2rem; text-align: center; flex: 0 0 auto; }
|
||||||
|
button, .button {
|
||||||
|
font: inherit; padding: .4rem .8rem; border-radius: 7px; cursor: pointer;
|
||||||
|
border: 1px solid var(--line); background: var(--card); color: var(--fg);
|
||||||
|
}
|
||||||
|
button.primary, .button.primary { background: var(--accent); color: var(--accent-fg); border-color: transparent; }
|
||||||
|
button:hover, .button:hover { filter: brightness(1.08); text-decoration: none; }
|
||||||
|
.bar { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin: .75rem 0; }
|
||||||
|
.crumbs { display: flex; gap: .3rem; flex-wrap: wrap; align-items: center; word-break: break-all; }
|
||||||
|
.crumbs span { color: var(--muted); }
|
||||||
|
.note {
|
||||||
|
border-left: 3px solid var(--accent); background: var(--card);
|
||||||
|
padding: .6rem .8rem; border-radius: 0 8px 8px 0; margin-bottom: 1rem;
|
||||||
|
}
|
||||||
|
.warn { border-left-color: #d9534f; }
|
||||||
|
.pill {
|
||||||
|
display: inline-block; padding: .1rem .5rem; border-radius: 999px;
|
||||||
|
background: var(--hover); font-size: .82em; color: var(--muted);
|
||||||
|
}
|
||||||
|
input[type=checkbox] { width: 1.05rem; height: 1.05rem; }
|
||||||
|
.empty { padding: 2rem 1rem; text-align: center; color: var(--muted); }
|
||||||
|
@media (max-width: 640px) {
|
||||||
|
td.when, th.when { display: none; }
|
||||||
|
main { padding: .5rem; }
|
||||||
|
}
|
||||||
|
"""
|
||||||
|
|
||||||
|
# Auswahl-Kaestchen: "alle" umschalten und Anzahl anzeigen.
|
||||||
|
SCRIPT = """
|
||||||
|
function pvesnapInit() {
|
||||||
|
var all = document.getElementById('pick-all');
|
||||||
|
var boxes = Array.prototype.slice.call(document.querySelectorAll('.pick-one'));
|
||||||
|
var info = document.getElementById('pick-info');
|
||||||
|
function update() {
|
||||||
|
var n = boxes.filter(function (b) { return b.checked; }).length;
|
||||||
|
if (info) { info.textContent = n ? (n + ' ausgewaehlt') : ''; }
|
||||||
|
if (all) { all.checked = n > 0 && n === boxes.length; }
|
||||||
|
}
|
||||||
|
if (all) {
|
||||||
|
all.addEventListener('change', function () {
|
||||||
|
boxes.forEach(function (b) { b.checked = all.checked; });
|
||||||
|
update();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
boxes.forEach(function (b) { b.addEventListener('change', update); });
|
||||||
|
update();
|
||||||
|
}
|
||||||
|
document.addEventListener('DOMContentLoaded', pvesnapInit);
|
||||||
|
"""
|
||||||
|
|
||||||
|
PAGE = """<!doctype html>
|
||||||
|
<html lang="de">
|
||||||
|
<head>
|
||||||
|
<meta charset="utf-8">
|
||||||
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
||||||
|
<title>%(title)s</title>
|
||||||
|
<style>%(style)s</style>
|
||||||
|
<script>%(script)s</script>
|
||||||
|
</head>
|
||||||
|
<body>
|
||||||
|
<header>
|
||||||
|
<h1><a href="%(home)s">pvesnap</a></h1>
|
||||||
|
<span class="muted">%(subtitle)s</span>
|
||||||
|
<span class="spacer"></span>
|
||||||
|
%(actions)s
|
||||||
|
</header>
|
||||||
|
<main>
|
||||||
|
%(body)s
|
||||||
|
</main>
|
||||||
|
</body>
|
||||||
|
</html>
|
||||||
|
"""
|
||||||
@@ -0,0 +1,775 @@
|
|||||||
|
"""pvesnap-web - Snapshot-Inhalte im Browser durchsehen und herunterladen.
|
||||||
|
|
||||||
|
pvesnap-web Gast und Snapshot im Browser waehlen
|
||||||
|
pvesnap-web 802 <snapname> diesen Snapshot gleich oeffnen
|
||||||
|
pvesnap-web --path /verzeichnis beliebiges Verzeichnis (ohne Proxmox)
|
||||||
|
|
||||||
|
Beim Start wird eine Adresse mit Zugangsschluessel ausgegeben. Nur wer diese
|
||||||
|
Adresse kennt, kommt an die Daten - der Schluessel wandert danach in ein
|
||||||
|
Cookie. Es wird ausschliesslich gelesen; ueber die Oberflaeche laesst sich
|
||||||
|
nichts veraendern oder loeschen.
|
||||||
|
"""
|
||||||
|
|
||||||
|
from __future__ import annotations
|
||||||
|
|
||||||
|
import argparse
|
||||||
|
import html
|
||||||
|
import io
|
||||||
|
import logging
|
||||||
|
import os
|
||||||
|
import secrets
|
||||||
|
import socket
|
||||||
|
import stat
|
||||||
|
import sys
|
||||||
|
import threading
|
||||||
|
import time
|
||||||
|
import urllib.parse
|
||||||
|
import zipfile
|
||||||
|
from datetime import datetime
|
||||||
|
from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
|
||||||
|
|
||||||
|
from .. import __version__
|
||||||
|
from ..proxmox import Proxmox, ProxmoxError, pvesh_available
|
||||||
|
from ..snapfs import (Session, SnapfsError, cleanup_leftovers, human_bytes,
|
||||||
|
list_snapshots)
|
||||||
|
from .assets import PAGE, SCRIPT, STYLE
|
||||||
|
|
||||||
|
log = logging.getLogger("pvesnap.web")
|
||||||
|
|
||||||
|
COOKIE = "pvesnap_token"
|
||||||
|
CHUNK = 256 * 1024
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Zustand
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
class AppState:
|
||||||
|
"""Was gerade geoeffnet ist. Es ist immer hoechstens ein Snapshot offen."""
|
||||||
|
|
||||||
|
def __init__(self, token, proxmox=None, fixed_path=""):
|
||||||
|
self.token = token
|
||||||
|
self.proxmox = proxmox
|
||||||
|
self.fixed_path = fixed_path
|
||||||
|
self.session = None
|
||||||
|
self.guest = None
|
||||||
|
self.snapname = ""
|
||||||
|
self.roots = [] # [(Beschriftung, Pfad)]
|
||||||
|
self.lock = threading.Lock()
|
||||||
|
self.notes = []
|
||||||
|
|
||||||
|
if fixed_path:
|
||||||
|
self.roots = [(fixed_path, os.path.realpath(fixed_path))]
|
||||||
|
|
||||||
|
@property
|
||||||
|
def open(self):
|
||||||
|
return bool(self.roots)
|
||||||
|
|
||||||
|
@property
|
||||||
|
def subtitle(self):
|
||||||
|
if self.fixed_path:
|
||||||
|
return html.escape(self.fixed_path)
|
||||||
|
if self.session:
|
||||||
|
return "%s · Snapshot <b>%s</b>" % (
|
||||||
|
html.escape(self.guest.label), html.escape(self.snapname))
|
||||||
|
return "Snapshot-Explorer %s" % __version__
|
||||||
|
|
||||||
|
def open_snapshot(self, guest, snapname):
|
||||||
|
with self.lock:
|
||||||
|
self.close_locked()
|
||||||
|
session = Session(self.proxmox, guest, snapname)
|
||||||
|
session.open()
|
||||||
|
session.prepare()
|
||||||
|
self.session = session
|
||||||
|
self.guest = guest
|
||||||
|
self.snapname = snapname
|
||||||
|
self.notes = list(session.notes)
|
||||||
|
self.roots = [(mountpoint, mountpoint)
|
||||||
|
for mountpoint in sorted(set(session.mounts.values()))]
|
||||||
|
|
||||||
|
def close_locked(self):
|
||||||
|
if self.session:
|
||||||
|
self.session.close()
|
||||||
|
self.session = None
|
||||||
|
self.guest = None
|
||||||
|
self.snapname = ""
|
||||||
|
self.notes = []
|
||||||
|
if not self.fixed_path:
|
||||||
|
self.roots = []
|
||||||
|
|
||||||
|
def close(self):
|
||||||
|
with self.lock:
|
||||||
|
self.close_locked()
|
||||||
|
|
||||||
|
def root(self, index):
|
||||||
|
if not self.roots:
|
||||||
|
return ""
|
||||||
|
index = max(0, min(index, len(self.roots) - 1))
|
||||||
|
return self.roots[index][1]
|
||||||
|
|
||||||
|
def resolve(self, index, relative):
|
||||||
|
"""Relativen Pfad in einen echten Pfad innerhalb des Snapshots umsetzen.
|
||||||
|
|
||||||
|
Alles ausserhalb der eingebundenen Wurzel wird abgewiesen - damit
|
||||||
|
laesst sich ueber die Adresszeile nichts anderes vom Host lesen.
|
||||||
|
"""
|
||||||
|
root = self.root(index)
|
||||||
|
if not root:
|
||||||
|
raise ValueError("Es ist kein Snapshot geoeffnet.")
|
||||||
|
candidate = os.path.realpath(os.path.join(root, (relative or "").lstrip("/")))
|
||||||
|
root_real = os.path.realpath(root)
|
||||||
|
if candidate != root_real and not candidate.startswith(root_real + os.sep):
|
||||||
|
raise ValueError("Pfad liegt ausserhalb des Snapshots.")
|
||||||
|
return candidate
|
||||||
|
|
||||||
|
def relative(self, index, path):
|
||||||
|
root = os.path.realpath(self.root(index))
|
||||||
|
path = os.path.realpath(path)
|
||||||
|
if path == root:
|
||||||
|
return ""
|
||||||
|
return os.path.relpath(path, root)
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Hilfsfunktionen fuer HTML
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def esc(text):
|
||||||
|
return html.escape(str(text), quote=True)
|
||||||
|
|
||||||
|
|
||||||
|
def link(path_part, **params):
|
||||||
|
query = urllib.parse.urlencode({k: v for k, v in params.items() if v not in (None, "")})
|
||||||
|
return path_part + (("?" + query) if query else "")
|
||||||
|
|
||||||
|
|
||||||
|
def page(title, state, body, actions=""):
|
||||||
|
return PAGE % {
|
||||||
|
"title": esc(title),
|
||||||
|
"style": STYLE,
|
||||||
|
"script": SCRIPT,
|
||||||
|
"home": "/",
|
||||||
|
"subtitle": state.subtitle,
|
||||||
|
"actions": actions,
|
||||||
|
"body": body,
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
def icon_for(entry_is_dir, is_link, is_special):
|
||||||
|
if is_special:
|
||||||
|
return "⚙"
|
||||||
|
if is_link:
|
||||||
|
return "↪"
|
||||||
|
return "📁" if entry_is_dir else "📄"
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# HTTP
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
class Handler(BaseHTTPRequestHandler):
|
||||||
|
protocol_version = "HTTP/1.1"
|
||||||
|
server_version = "pvesnap/" + __version__
|
||||||
|
state = None # wird beim Start gesetzt
|
||||||
|
|
||||||
|
# -- Grundlagen -------------------------------------------------------
|
||||||
|
|
||||||
|
def log_message(self, fmt, *args):
|
||||||
|
log.info("%s %s", self.address_string(), fmt % args)
|
||||||
|
|
||||||
|
def _send(self, body, status=200, content_type="text/html; charset=utf-8",
|
||||||
|
extra_headers=None):
|
||||||
|
if isinstance(body, str):
|
||||||
|
body = body.encode("utf-8")
|
||||||
|
self.send_response(status)
|
||||||
|
self.send_header("Content-Type", content_type)
|
||||||
|
self.send_header("Content-Length", str(len(body)))
|
||||||
|
self.send_header("X-Content-Type-Options", "nosniff")
|
||||||
|
self.send_header("Referrer-Policy", "no-referrer")
|
||||||
|
for key, value in (extra_headers or {}).items():
|
||||||
|
self.send_header(key, value)
|
||||||
|
self.end_headers()
|
||||||
|
if self.command != "HEAD":
|
||||||
|
self.wfile.write(body)
|
||||||
|
|
||||||
|
def _redirect(self, target, cookie=None):
|
||||||
|
self.send_response(303)
|
||||||
|
self.send_header("Location", target)
|
||||||
|
self.send_header("Content-Length", "0")
|
||||||
|
if cookie:
|
||||||
|
self.send_header("Set-Cookie",
|
||||||
|
"%s=%s; Path=/; HttpOnly; SameSite=Strict; Max-Age=86400"
|
||||||
|
% (COOKIE, cookie))
|
||||||
|
self.end_headers()
|
||||||
|
|
||||||
|
def _error(self, message, status=400):
|
||||||
|
body = page("Fehler", self.state,
|
||||||
|
'<div class="note warn"><b>Das ging nicht:</b><br>%s</div>'
|
||||||
|
'<p><a class="button" href="/">Zurueck zum Anfang</a></p>'
|
||||||
|
% esc(message))
|
||||||
|
self._send(body, status=status)
|
||||||
|
|
||||||
|
# -- Zugang -----------------------------------------------------------
|
||||||
|
|
||||||
|
def _authorized(self, params):
|
||||||
|
supplied = ""
|
||||||
|
if "token" in params:
|
||||||
|
supplied = params["token"][0]
|
||||||
|
else:
|
||||||
|
cookies = self.headers.get("Cookie") or ""
|
||||||
|
for part in cookies.split(";"):
|
||||||
|
name, _, value = part.strip().partition("=")
|
||||||
|
if name == COOKIE:
|
||||||
|
supplied = value
|
||||||
|
return secrets.compare_digest(supplied, self.state.token), supplied
|
||||||
|
|
||||||
|
# -- Anfragen ---------------------------------------------------------
|
||||||
|
|
||||||
|
def do_HEAD(self):
|
||||||
|
self.do_GET()
|
||||||
|
|
||||||
|
def do_GET(self):
|
||||||
|
parsed = urllib.parse.urlparse(self.path)
|
||||||
|
params = urllib.parse.parse_qs(parsed.query)
|
||||||
|
route = parsed.path
|
||||||
|
|
||||||
|
ok, supplied = self._authorized(params)
|
||||||
|
if not ok:
|
||||||
|
self._send(page("Zugang", self.state,
|
||||||
|
'<div class="note warn">Zugangsschluessel fehlt oder ist '
|
||||||
|
'falsch.<br>Bitte die Adresse benutzen, die beim Start von '
|
||||||
|
'<code>pvesnap-web</code> ausgegeben wurde.</div>'),
|
||||||
|
status=403)
|
||||||
|
return
|
||||||
|
|
||||||
|
# Schluessel aus der Adresse in ein Cookie umziehen
|
||||||
|
if "token" in params and route not in ("/download", "/zip"):
|
||||||
|
clean = {k: v[0] for k, v in params.items() if k != "token"}
|
||||||
|
self._redirect(link(route, **clean), cookie=supplied)
|
||||||
|
return
|
||||||
|
|
||||||
|
try:
|
||||||
|
if route == "/":
|
||||||
|
self._page_home()
|
||||||
|
elif route == "/snapshots":
|
||||||
|
self._page_snapshots(params)
|
||||||
|
elif route == "/files":
|
||||||
|
self._page_files(params)
|
||||||
|
elif route == "/download":
|
||||||
|
self._download(params)
|
||||||
|
else:
|
||||||
|
self._error("Unbekannte Seite: %s" % route, status=404)
|
||||||
|
except (ValueError, SnapfsError, ProxmoxError) as exc:
|
||||||
|
self._error(str(exc))
|
||||||
|
except BrokenPipeError:
|
||||||
|
pass # Browser hat den Download abgebrochen
|
||||||
|
|
||||||
|
def do_POST(self):
|
||||||
|
parsed = urllib.parse.urlparse(self.path)
|
||||||
|
ok, _ = self._authorized(urllib.parse.parse_qs(parsed.query))
|
||||||
|
if not ok:
|
||||||
|
self._send("Zugang verweigert", status=403, content_type="text/plain")
|
||||||
|
return
|
||||||
|
|
||||||
|
length = int(self.headers.get("Content-Length") or 0)
|
||||||
|
raw = self.rfile.read(length).decode("utf-8", "replace") if length else ""
|
||||||
|
form = urllib.parse.parse_qs(raw)
|
||||||
|
|
||||||
|
try:
|
||||||
|
if parsed.path == "/open":
|
||||||
|
self._open_snapshot(form)
|
||||||
|
elif parsed.path == "/close":
|
||||||
|
self.state.close()
|
||||||
|
self._redirect("/")
|
||||||
|
elif parsed.path == "/zip":
|
||||||
|
self._zip(form)
|
||||||
|
else:
|
||||||
|
self._error("Unbekannte Aktion", status=404)
|
||||||
|
except (ValueError, SnapfsError, ProxmoxError) as exc:
|
||||||
|
self._error(str(exc))
|
||||||
|
except BrokenPipeError:
|
||||||
|
pass
|
||||||
|
|
||||||
|
# -- Seiten -----------------------------------------------------------
|
||||||
|
|
||||||
|
def _page_home(self):
|
||||||
|
state = self.state
|
||||||
|
if state.open:
|
||||||
|
self._redirect(link("/files", fs=0, p=""))
|
||||||
|
return
|
||||||
|
if not state.proxmox:
|
||||||
|
self._error("Kein Verzeichnis geoeffnet.")
|
||||||
|
return
|
||||||
|
|
||||||
|
guests = state.proxmox.inventory(refresh=True)
|
||||||
|
rows = []
|
||||||
|
for guest in guests:
|
||||||
|
rows.append(
|
||||||
|
"<tr><td class='name'><span class='icon'>%s</span>"
|
||||||
|
"<a href='%s'>%s</a></td>"
|
||||||
|
"<td>%s</td><td>%s</td><td>%s</td><td class='muted'>%s</td></tr>"
|
||||||
|
% ("📦" if guest.type == "lxc" else "🖥",
|
||||||
|
esc(link("/snapshots", vmid=guest.vmid)),
|
||||||
|
esc(guest.name or ("VM %d" % guest.vmid)),
|
||||||
|
guest.vmid, "LXC" if guest.type == "lxc" else "VM",
|
||||||
|
esc(guest.status), esc(guest.node)))
|
||||||
|
|
||||||
|
body = (
|
||||||
|
"<h2>Gast auswaehlen</h2>"
|
||||||
|
"<div class='card'><table><thead><tr><th>Name</th><th>VMID</th>"
|
||||||
|
"<th>Typ</th><th>Status</th><th>Node</th></tr></thead><tbody>%s</tbody>"
|
||||||
|
"</table></div>" % ("".join(rows) or
|
||||||
|
"<tr><td colspan='5' class='empty'>Keine Gaeste gefunden.</td></tr>"))
|
||||||
|
self._send(page("pvesnap - Gaeste", state, body))
|
||||||
|
|
||||||
|
def _page_snapshots(self, params):
|
||||||
|
state = self.state
|
||||||
|
vmid = int((params.get("vmid") or ["0"])[0])
|
||||||
|
guest = next((g for g in state.proxmox.inventory() if g.vmid == vmid), None)
|
||||||
|
if guest is None:
|
||||||
|
self._error("Gast %d nicht gefunden." % vmid, status=404)
|
||||||
|
return
|
||||||
|
|
||||||
|
rows = []
|
||||||
|
for snap in list_snapshots(state.proxmox, guest):
|
||||||
|
when = (datetime.fromtimestamp(snap.snaptime).strftime("%d.%m.%Y %H:%M")
|
||||||
|
if snap.snaptime else "?")
|
||||||
|
rows.append(
|
||||||
|
"<tr><td class='name'><span class='icon'>🕘</span>%s</td>"
|
||||||
|
"<td class='when'>%s</td><td class='muted'>%s</td>"
|
||||||
|
"<td><form method='post' action='/open'>"
|
||||||
|
"<input type='hidden' name='vmid' value='%d'>"
|
||||||
|
"<input type='hidden' name='snap' value='%s'>"
|
||||||
|
"<button class='primary' type='submit'>Oeffnen</button>"
|
||||||
|
"</form></td></tr>"
|
||||||
|
% (esc(snap.name), esc(when),
|
||||||
|
esc(snap.description.replace("\n", " ")[:120]),
|
||||||
|
guest.vmid, esc(snap.name)))
|
||||||
|
|
||||||
|
body = (
|
||||||
|
"<p><a href='/'>← Gaeste</a></p>"
|
||||||
|
"<h2>Snapshots von %s</h2>"
|
||||||
|
"<div class='note'>Das Oeffnen bindet den Snapshot schreibgeschuetzt "
|
||||||
|
"ein - das dauert ein paar Sekunden.</div>"
|
||||||
|
"<div class='card'><table><thead><tr><th>Snapshot</th><th class='when'>"
|
||||||
|
"Erstellt</th><th>Beschreibung</th><th></th></tr></thead><tbody>%s</tbody>"
|
||||||
|
"</table></div>"
|
||||||
|
% (esc(guest.label),
|
||||||
|
"".join(rows) or "<tr><td colspan='4' class='empty'>"
|
||||||
|
"Dieser Gast hat keine Snapshots.</td></tr>"))
|
||||||
|
self._send(page("Snapshots %s" % guest.label, state, body))
|
||||||
|
|
||||||
|
def _open_snapshot(self, form):
|
||||||
|
state = self.state
|
||||||
|
vmid = int((form.get("vmid") or ["0"])[0])
|
||||||
|
snapname = (form.get("snap") or [""])[0]
|
||||||
|
guest = next((g for g in state.proxmox.inventory() if g.vmid == vmid), None)
|
||||||
|
if guest is None or not snapname:
|
||||||
|
self._error("Gast oder Snapshot fehlt.")
|
||||||
|
return
|
||||||
|
log.info("Oeffne Snapshot %s von %s", snapname, guest.label)
|
||||||
|
state.open_snapshot(guest, snapname)
|
||||||
|
self._redirect(link("/files", fs=0, p=""))
|
||||||
|
|
||||||
|
def _page_files(self, params):
|
||||||
|
state = self.state
|
||||||
|
if not state.open:
|
||||||
|
self._redirect("/")
|
||||||
|
return
|
||||||
|
|
||||||
|
fs = int((params.get("fs") or ["0"])[0])
|
||||||
|
relative = (params.get("p") or [""])[0]
|
||||||
|
path = state.resolve(fs, relative)
|
||||||
|
|
||||||
|
if not os.path.isdir(path):
|
||||||
|
self._redirect(link("/download", fs=fs, p=relative))
|
||||||
|
return
|
||||||
|
|
||||||
|
entries = []
|
||||||
|
try:
|
||||||
|
with os.scandir(path) as scan:
|
||||||
|
for item in scan:
|
||||||
|
entries.append(self._describe(item))
|
||||||
|
except OSError as exc:
|
||||||
|
self._error("%s: %s" % (path, exc.strerror or exc))
|
||||||
|
return
|
||||||
|
entries.sort(key=lambda e: (0 if e["dir"] else 1, e["name"].lower()))
|
||||||
|
|
||||||
|
body = [self._crumbs(fs, relative), self._filesystems(fs)]
|
||||||
|
for note in state.notes:
|
||||||
|
body.append("<div class='note'>%s</div>" % esc(note))
|
||||||
|
|
||||||
|
rows = []
|
||||||
|
if relative:
|
||||||
|
parent = os.path.dirname(relative.rstrip("/"))
|
||||||
|
rows.append("<tr><td class='pick'></td><td class='name'>"
|
||||||
|
"<span class='icon'>↩</span><a href='%s'>..</a></td>"
|
||||||
|
"<td class='size'></td><td class='when'></td></tr>"
|
||||||
|
% esc(link("/files", fs=fs, p=parent)))
|
||||||
|
|
||||||
|
for entry in entries:
|
||||||
|
child = os.path.join(relative, entry["name"]) if relative else entry["name"]
|
||||||
|
target = link("/files" if entry["dir"] else "/download", fs=fs, p=child)
|
||||||
|
rows.append(
|
||||||
|
"<tr><td class='pick'>%s</td>"
|
||||||
|
"<td class='name'><span class='icon'>%s</span><a href='%s'>%s</a></td>"
|
||||||
|
"<td class='size'>%s</td><td class='when'>%s</td></tr>"
|
||||||
|
% ("" if entry["special"] else
|
||||||
|
"<input class='pick-one' type='checkbox' name='p' value='%s' form='zipform'>"
|
||||||
|
% esc(child),
|
||||||
|
icon_for(entry["dir"], entry["link"], entry["special"]),
|
||||||
|
esc(target), esc(entry["name"]),
|
||||||
|
"<DIR>" if entry["dir"] else
|
||||||
|
("<SPEZ>" if entry["special"] else esc(human_bytes(entry["size"]))),
|
||||||
|
esc(entry["when"])))
|
||||||
|
|
||||||
|
body.append(
|
||||||
|
"<form id='zipform' method='post' action='/zip'>"
|
||||||
|
"<input type='hidden' name='fs' value='%d'>"
|
||||||
|
"<input type='hidden' name='base' value='%s'>"
|
||||||
|
"</form>" % (fs, esc(relative)))
|
||||||
|
body.append(
|
||||||
|
"<div class='bar'>"
|
||||||
|
"<label class='pill'><input type='checkbox' id='pick-all'> alle</label>"
|
||||||
|
"<span class='muted' id='pick-info'></span>"
|
||||||
|
"<button class='primary' type='submit' form='zipform'>"
|
||||||
|
"Auswahl als ZIP laden</button>"
|
||||||
|
"<span class='muted'>Einzelne Dateien: einfach anklicken.</span>"
|
||||||
|
"</div>")
|
||||||
|
body.append(
|
||||||
|
"<div class='card'><table><thead><tr><th class='pick'></th><th>Name</th>"
|
||||||
|
"<th class='size'>Groesse</th><th class='when'>Geaendert</th></tr></thead>"
|
||||||
|
"<tbody>%s</tbody></table></div>"
|
||||||
|
% ("".join(rows) or "<tr><td colspan='4' class='empty'>Leeres Verzeichnis</td></tr>"))
|
||||||
|
|
||||||
|
actions = ("<form method='post' action='/close' style='margin:0'>"
|
||||||
|
"<button type='submit'>Snapshot schliessen</button></form>"
|
||||||
|
if not state.fixed_path else "")
|
||||||
|
self._send(page("pvesnap - %s" % (relative or "/"), state,
|
||||||
|
"".join(body), actions=actions))
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def _describe(item):
|
||||||
|
try:
|
||||||
|
info = item.stat(follow_symlinks=False)
|
||||||
|
mode = info.st_mode
|
||||||
|
is_link = stat.S_ISLNK(mode)
|
||||||
|
if is_link:
|
||||||
|
try:
|
||||||
|
is_dir = stat.S_ISDIR(item.stat(follow_symlinks=True).st_mode)
|
||||||
|
except OSError:
|
||||||
|
is_dir = False
|
||||||
|
special = False
|
||||||
|
else:
|
||||||
|
is_dir = stat.S_ISDIR(mode)
|
||||||
|
special = not (is_dir or stat.S_ISREG(mode))
|
||||||
|
return {"name": item.name, "dir": is_dir, "link": is_link,
|
||||||
|
"special": special, "size": info.st_size,
|
||||||
|
"when": datetime.fromtimestamp(info.st_mtime).strftime("%d.%m.%y %H:%M")}
|
||||||
|
except OSError:
|
||||||
|
return {"name": item.name, "dir": False, "link": False, "special": True,
|
||||||
|
"size": 0, "when": ""}
|
||||||
|
|
||||||
|
def _crumbs(self, fs, relative):
|
||||||
|
parts = [p for p in (relative or "").split("/") if p]
|
||||||
|
crumbs = ["<a href='%s'>%s</a>" % (esc(link("/files", fs=fs, p="")), "⌂")]
|
||||||
|
walked = ""
|
||||||
|
for part in parts:
|
||||||
|
walked = os.path.join(walked, part)
|
||||||
|
crumbs.append("<span>/</span><a href='%s'>%s</a>"
|
||||||
|
% (esc(link("/files", fs=fs, p=walked)), esc(part)))
|
||||||
|
return "<div class='crumbs'>%s</div>" % "".join(crumbs)
|
||||||
|
|
||||||
|
def _filesystems(self, current):
|
||||||
|
state = self.state
|
||||||
|
if len(state.roots) < 2:
|
||||||
|
return ""
|
||||||
|
items = []
|
||||||
|
for index, (label, _path) in enumerate(state.roots):
|
||||||
|
if index == current:
|
||||||
|
items.append("<span class='pill'>%s</span>" % esc(label))
|
||||||
|
else:
|
||||||
|
items.append("<a class='button' href='%s'>%s</a>"
|
||||||
|
% (esc(link("/files", fs=index, p="")), esc(label)))
|
||||||
|
return "<div class='bar'><span class='muted'>Dateisystem:</span>%s</div>" % "".join(items)
|
||||||
|
|
||||||
|
# -- Herunterladen ----------------------------------------------------
|
||||||
|
|
||||||
|
def _download(self, params):
|
||||||
|
state = self.state
|
||||||
|
fs = int((params.get("fs") or ["0"])[0])
|
||||||
|
relative = (params.get("p") or [""])[0]
|
||||||
|
path = state.resolve(fs, relative)
|
||||||
|
|
||||||
|
if os.path.isdir(path):
|
||||||
|
self._zip_response([relative], fs, os.path.basename(relative) or "snapshot")
|
||||||
|
return
|
||||||
|
|
||||||
|
try:
|
||||||
|
info = os.stat(path)
|
||||||
|
except OSError as exc:
|
||||||
|
self._error("%s: %s" % (relative, exc.strerror or exc), status=404)
|
||||||
|
return
|
||||||
|
if not stat.S_ISREG(info.st_mode):
|
||||||
|
self._error("Nur regulaere Dateien lassen sich herunterladen.")
|
||||||
|
return
|
||||||
|
|
||||||
|
name = os.path.basename(path) or "datei"
|
||||||
|
self.send_response(200)
|
||||||
|
self.send_header("Content-Type", "application/octet-stream")
|
||||||
|
self.send_header("Content-Length", str(info.st_size))
|
||||||
|
self.send_header("Content-Disposition",
|
||||||
|
"attachment; filename*=UTF-8''%s"
|
||||||
|
% urllib.parse.quote(name, safe=""))
|
||||||
|
self.send_header("X-Content-Type-Options", "nosniff")
|
||||||
|
self.end_headers()
|
||||||
|
if self.command == "HEAD":
|
||||||
|
return
|
||||||
|
with open(path, "rb") as handle:
|
||||||
|
while True:
|
||||||
|
chunk = handle.read(CHUNK)
|
||||||
|
if not chunk:
|
||||||
|
break
|
||||||
|
self.wfile.write(chunk)
|
||||||
|
|
||||||
|
def _zip(self, form):
|
||||||
|
fs = int((form.get("fs") or ["0"])[0])
|
||||||
|
base = (form.get("base") or [""])[0]
|
||||||
|
selected = form.get("p") or []
|
||||||
|
if not selected:
|
||||||
|
self._error("Nichts ausgewaehlt.")
|
||||||
|
return
|
||||||
|
name = os.path.basename(base) or "snapshot"
|
||||||
|
self._zip_response(selected, fs, name)
|
||||||
|
|
||||||
|
def _zip_response(self, relatives, fs, name):
|
||||||
|
"""ZIP direkt in die Verbindung schreiben - ohne Zwischendatei."""
|
||||||
|
state = self.state
|
||||||
|
paths = []
|
||||||
|
for relative in relatives:
|
||||||
|
path = state.resolve(fs, relative)
|
||||||
|
if os.path.lexists(path):
|
||||||
|
paths.append((relative, path))
|
||||||
|
if not paths:
|
||||||
|
self._error("Nichts gefunden.", status=404)
|
||||||
|
return
|
||||||
|
|
||||||
|
filename = "%s-%s.zip" % (name or "snapshot", time.strftime("%Y%m%d-%H%M%S"))
|
||||||
|
self.send_response(200)
|
||||||
|
self.send_header("Content-Type", "application/zip")
|
||||||
|
self.send_header("Transfer-Encoding", "chunked")
|
||||||
|
self.send_header("Content-Disposition",
|
||||||
|
"attachment; filename*=UTF-8''%s"
|
||||||
|
% urllib.parse.quote(filename, safe=""))
|
||||||
|
self.end_headers()
|
||||||
|
if self.command == "HEAD":
|
||||||
|
return
|
||||||
|
|
||||||
|
sink = _ChunkedSink(self.wfile)
|
||||||
|
skipped = 0
|
||||||
|
try:
|
||||||
|
with zipfile.ZipFile(sink, "w", compression=zipfile.ZIP_DEFLATED,
|
||||||
|
compresslevel=1, allowZip64=True) as archive:
|
||||||
|
for relative, path in paths:
|
||||||
|
skipped += self._add_to_zip(archive, path,
|
||||||
|
os.path.basename(relative.rstrip("/"))
|
||||||
|
or "inhalt")
|
||||||
|
sink.finish()
|
||||||
|
except BrokenPipeError:
|
||||||
|
log.info("Download abgebrochen: %s", filename)
|
||||||
|
if skipped:
|
||||||
|
log.info("%s: %d Spezialdatei(en) uebersprungen", filename, skipped)
|
||||||
|
|
||||||
|
def _add_to_zip(self, archive, path, arcname):
|
||||||
|
skipped = 0
|
||||||
|
try:
|
||||||
|
info = os.lstat(path)
|
||||||
|
except OSError:
|
||||||
|
return 1
|
||||||
|
|
||||||
|
if stat.S_ISLNK(info.st_mode):
|
||||||
|
entry = zipfile.ZipInfo(arcname)
|
||||||
|
entry.create_system = 3
|
||||||
|
entry.external_attr = (0xA000 | 0o777) << 16 # Symlink im ZIP
|
||||||
|
archive.writestr(entry, os.readlink(path))
|
||||||
|
return 0
|
||||||
|
|
||||||
|
if stat.S_ISDIR(info.st_mode):
|
||||||
|
empty = True
|
||||||
|
try:
|
||||||
|
for name in sorted(os.listdir(path)):
|
||||||
|
empty = False
|
||||||
|
skipped += self._add_to_zip(archive, os.path.join(path, name),
|
||||||
|
os.path.join(arcname, name))
|
||||||
|
except OSError:
|
||||||
|
skipped += 1
|
||||||
|
if empty:
|
||||||
|
archive.writestr(zipfile.ZipInfo(arcname.rstrip("/") + "/"), b"")
|
||||||
|
return skipped
|
||||||
|
|
||||||
|
if not stat.S_ISREG(info.st_mode):
|
||||||
|
return 1 # Geraetedateien, Sockets, FIFOs
|
||||||
|
|
||||||
|
try:
|
||||||
|
archive.write(path, arcname)
|
||||||
|
except OSError:
|
||||||
|
skipped += 1
|
||||||
|
return skipped
|
||||||
|
|
||||||
|
|
||||||
|
class _ChunkedSink:
|
||||||
|
"""Datei-aehnliches Objekt, das direkt in die HTTP-Verbindung schreibt.
|
||||||
|
|
||||||
|
zipfile kommt mit nicht positionierbaren Stroemen zurecht, braucht aber
|
||||||
|
tell(); deshalb wird die Position selbst mitgezaehlt.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, wfile):
|
||||||
|
self.wfile = wfile
|
||||||
|
self.position = 0
|
||||||
|
self.closed = False
|
||||||
|
|
||||||
|
def write(self, data):
|
||||||
|
if not data:
|
||||||
|
return 0
|
||||||
|
self.wfile.write(b"%x\r\n" % len(data))
|
||||||
|
self.wfile.write(data)
|
||||||
|
self.wfile.write(b"\r\n")
|
||||||
|
self.position += len(data)
|
||||||
|
return len(data)
|
||||||
|
|
||||||
|
def tell(self):
|
||||||
|
return self.position
|
||||||
|
|
||||||
|
def flush(self):
|
||||||
|
try:
|
||||||
|
self.wfile.flush()
|
||||||
|
except (BrokenPipeError, ValueError):
|
||||||
|
pass
|
||||||
|
|
||||||
|
@staticmethod
|
||||||
|
def seekable():
|
||||||
|
return False
|
||||||
|
|
||||||
|
def finish(self):
|
||||||
|
if not self.closed:
|
||||||
|
self.closed = True
|
||||||
|
self.wfile.write(b"0\r\n\r\n")
|
||||||
|
self.flush()
|
||||||
|
|
||||||
|
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
# Start
|
||||||
|
# ---------------------------------------------------------------------------
|
||||||
|
|
||||||
|
def _addresses(port):
|
||||||
|
"""Erreichbare Adressen des Hosts - fuer die Ausgabe beim Start."""
|
||||||
|
found = []
|
||||||
|
try:
|
||||||
|
hostname = socket.gethostname()
|
||||||
|
for info in socket.getaddrinfo(hostname, port, proto=socket.IPPROTO_TCP):
|
||||||
|
address = info[4][0]
|
||||||
|
if address not in found and not address.startswith("127."):
|
||||||
|
found.append(address)
|
||||||
|
except OSError:
|
||||||
|
pass
|
||||||
|
return found or ["<IP-des-Hosts>"]
|
||||||
|
|
||||||
|
|
||||||
|
def build_parser():
|
||||||
|
parser = argparse.ArgumentParser(
|
||||||
|
prog="pvesnap-web",
|
||||||
|
description="Snapshot-Inhalte im Browser durchsehen und herunterladen.")
|
||||||
|
parser.add_argument("vmid", nargs="?", type=int, help="VMID des Gastes")
|
||||||
|
parser.add_argument("snapshot", nargs="?", help="Name des Snapshots")
|
||||||
|
parser.add_argument("-b", "--bind", default="0.0.0.0",
|
||||||
|
help="Adresse, auf der gelauscht wird (Vorgabe: %(default)s)")
|
||||||
|
parser.add_argument("-P", "--port", type=int, default=8823,
|
||||||
|
help="Port (Vorgabe: %(default)s)")
|
||||||
|
parser.add_argument("-p", "--path",
|
||||||
|
help="beliebiges Verzeichnis freigeben, ohne Proxmox zu fragen")
|
||||||
|
parser.add_argument("-t", "--token", help="Zugangsschluessel selbst vorgeben")
|
||||||
|
parser.add_argument("--no-token", action="store_true",
|
||||||
|
help="ohne Zugangsschluessel (nur in vertrauenswuerdigen Netzen!)")
|
||||||
|
parser.add_argument("--cleanup", action="store_true",
|
||||||
|
help="haengengebliebene Einbindungen aufraeumen und beenden")
|
||||||
|
parser.add_argument("-v", "--verbose", action="store_true")
|
||||||
|
parser.add_argument("-V", "--version", action="version",
|
||||||
|
version="pvesnap-web %s" % __version__)
|
||||||
|
return parser
|
||||||
|
|
||||||
|
|
||||||
|
def main(argv=None):
|
||||||
|
args = build_parser().parse_args(argv)
|
||||||
|
logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO,
|
||||||
|
format="%(asctime)s %(levelname)s %(message)s",
|
||||||
|
datefmt="%H:%M:%S")
|
||||||
|
|
||||||
|
if args.cleanup:
|
||||||
|
removed = cleanup_leftovers(verbose=True)
|
||||||
|
print("%d Eintrag/Eintraege aufgeraeumt." % len(removed))
|
||||||
|
return 0
|
||||||
|
|
||||||
|
proxmox = None
|
||||||
|
if not args.path:
|
||||||
|
if not pvesh_available():
|
||||||
|
print("'pvesh' nicht gefunden - pvesnap-web laeuft auf dem Proxmox-Host.\n"
|
||||||
|
"Zum Ausprobieren: pvesnap-web --path /ein/verzeichnis", file=sys.stderr)
|
||||||
|
return 3
|
||||||
|
if os.geteuid() != 0:
|
||||||
|
print("pvesnap-web braucht root-Rechte (Snapshots einbinden und mounten).",
|
||||||
|
file=sys.stderr)
|
||||||
|
return 4
|
||||||
|
proxmox = Proxmox()
|
||||||
|
elif not os.path.isdir(args.path):
|
||||||
|
print("Kein Verzeichnis: %s" % args.path, file=sys.stderr)
|
||||||
|
return 2
|
||||||
|
|
||||||
|
token = "" if args.no_token else (args.token or secrets.token_urlsafe(18))
|
||||||
|
state = AppState(token=token, proxmox=proxmox, fixed_path=args.path or "")
|
||||||
|
|
||||||
|
if args.vmid and args.snapshot and proxmox:
|
||||||
|
guest = next((g for g in proxmox.inventory() if g.vmid == args.vmid), None)
|
||||||
|
if guest is None:
|
||||||
|
print("Gast %d nicht gefunden." % args.vmid, file=sys.stderr)
|
||||||
|
return 2
|
||||||
|
log.info("Binde Snapshot %s von %s ein ...", args.snapshot, guest.label)
|
||||||
|
try:
|
||||||
|
state.open_snapshot(guest, args.snapshot)
|
||||||
|
except (SnapfsError, ProxmoxError) as exc:
|
||||||
|
print("Snapshot nicht zu oeffnen: %s" % exc, file=sys.stderr)
|
||||||
|
return 5
|
||||||
|
|
||||||
|
if args.no_token:
|
||||||
|
Handler._authorized = lambda self, params: (True, "")
|
||||||
|
|
||||||
|
Handler.state = state
|
||||||
|
server = ThreadingHTTPServer((args.bind, args.port), Handler)
|
||||||
|
server.daemon_threads = True
|
||||||
|
|
||||||
|
suffix = ("?token=%s" % token) if token else ""
|
||||||
|
lines = ["", "pvesnap-web laeuft. Im Browser oeffnen:", ""]
|
||||||
|
for address in _addresses(args.port):
|
||||||
|
lines.append(" http://%s:%d/%s" % (address, args.port, suffix))
|
||||||
|
if args.bind in ("127.0.0.1", "localhost", "::1"):
|
||||||
|
lines.append(" http://%s:%d/%s" % (args.bind, args.port, suffix))
|
||||||
|
lines += ["", " Beenden mit Strg-C."]
|
||||||
|
if not token:
|
||||||
|
lines.append(" ACHTUNG: ohne Zugangsschluessel gestartet.")
|
||||||
|
lines.append("")
|
||||||
|
# flush: sonst haengt die Adresse mit dem Schluessel im Puffer, sobald die
|
||||||
|
# Ausgabe nicht direkt im Terminal landet (Pipe, systemd, tee).
|
||||||
|
print("\n".join(lines), flush=True)
|
||||||
|
|
||||||
|
try:
|
||||||
|
server.serve_forever()
|
||||||
|
except KeyboardInterrupt:
|
||||||
|
print("\nBeende ...")
|
||||||
|
finally:
|
||||||
|
server.server_close()
|
||||||
|
state.close()
|
||||||
|
return 0
|
||||||
|
|
||||||
|
|
||||||
|
if __name__ == "__main__": # pragma: no cover
|
||||||
|
sys.exit(main())
|
||||||
+6
-4
@@ -61,10 +61,12 @@ fi
|
|||||||
systemctl daemon-reload 2>/dev/null || true
|
systemctl daemon-reload 2>/dev/null || true
|
||||||
systemctl reset-failed pvesnap.service 2>/dev/null || true
|
systemctl reset-failed pvesnap.service 2>/dev/null || true
|
||||||
|
|
||||||
if [ -e "$BIN" ]; then
|
for command in "$BIN" "${BIN}-explorer" "${BIN}-web"; do
|
||||||
info "Entferne $BIN"
|
if [ -e "$command" ]; then
|
||||||
rm -f "$BIN"
|
info "Entferne $command"
|
||||||
fi
|
rm -f "$command"
|
||||||
|
fi
|
||||||
|
done
|
||||||
if [ -d "$LIB_DIR" ]; then
|
if [ -d "$LIB_DIR" ]; then
|
||||||
info "Entferne $LIB_DIR"
|
info "Entferne $LIB_DIR"
|
||||||
rm -rf "$LIB_DIR"
|
rm -rf "$LIB_DIR"
|
||||||
|
|||||||
Reference in New Issue
Block a user