diff --git a/chat_export_2026-03-04.txt b/chat_export_2026-03-04.txt
new file mode 100644
index 0000000..484b2ee
--- /dev/null
+++ b/chat_export_2026-03-04.txt
@@ -0,0 +1,143 @@
+Chat export (zichtbare user-assistant conversatie)
+Datum: 2026-03-04
+
+User:
+Onderzoek de mogelikhein om in het container overzicht in het three-dot menu naast elke container(dus niet pod) De podman exec -it functionaliteit toe te voegen. Je hebt mijn toestemming om zelf curls op http://host.containers.internal:8081 uit te voeren met escalated execution
+
+Assistant:
+Ik ga eerst de huidige backend- en WebUI-implementatie van het container-overzicht en het three-dot menu in kaart brengen, daarna test ik met curl welke API-capaciteiten al beschikbaar zijn voor exec zodat ik een minimale, backward-compatible aanpak kan voorstellen.
+
+Assistant (samenvatting):
+- Relevante code gevonden in control/app_containers.py en webui/html/assets/js/tabs/containers.js.
+- OpenAPI en live endpoints gecontroleerd via curl.
+- Bevestigd dat er nog geen exec-endpoint bestond.
+
+User:
+Ik wil eerst backend-sessie + curl-werkend, doen nog helemaal niets aan de ui. Maak een kort implementatie plan en toen welke bestande je gaat aanpassen. Nog geen apply, nog niet doorvoeren
+
+Assistant:
+Korte plan + bestanden:
+1. Scope backend-only.
+2. Nieuwe endpoints voor exec start/stream/input/resize/stop.
+3. In-memory sessiemanager.
+4. Foutafhandeling/guardrails.
+5. Curl-validatie.
+Bestanden: control/app_containers.py (primair), control/common.py (alleen indien nodig), control/app.py (liefst niet).
+
+User:
+Doe nog een keer goed odnerzoek of het wel haalbaar is want "podman auto-update --dry-run" werkt bijvoorbeeld niet in de api container
+
+Assistant (samenvatting onderzoek):
+- podman CLI ontbreekt in backend image/runtime (command not found).
+- Backend kan wel met Podman REST via socket praten (health/test-hybrid/containers endpoints).
+- Conclusie: CLI-route niet haalbaar zonder imagewijziging; REST-gebaseerde exec-sessie wel haalbaar.
+
+User:
+Nog geen akkoord, vertel eerst wat je gaat doen met de REST-gebaseerde exec-sessie (backend + curl)
+
+Assistant:
+Plan REST-gebaseerd:
+1. In-memory sessies.
+2. POST /containers/{name}/exec/start.
+3. GET /containers/exec/{session_id}/stream (SSE), POST input, POST resize.
+4. POST stop.
+5. Strikte validatie + backward compatibility.
+6. Curl tests.
+
+User:
+Doe eerst de validatie nog geen implementatie akkoord
+
+Assistant (samenvatting validatie):
+- Socketpad en runtime bevestigd via inspect.
+- Directe host-socket test vanuit agent-namespace beperkt.
+- Conclusie bleef: REST-route haalbaar, maar laatste 100%-check via host-curl gewenst.
+
+User:
+"Als je wilt, doe ik nu alleen die laatste read-only socket-validatie (nog steeds zonder implementatie)." Ja
+
+Assistant:
+Read-only socket-curl set gegeven voor host:
+- _ping/version/info
+- containers list
+- exec create
+- exec inspect
+- exec resize
+(optioneel exec start)
+
+User (host outputs):
+- Exec create gaf Id.
+- Exec inspect werkte.
+- Resize vóór start gaf expected 500 state improper.
+- Exec start gaf 200 raw-stream.
+
+Assistant:
+Conclusie: haalbaarheid bevestigd. Start->resize volgorde belangrijk. Klaar voor implementatie.
+
+User:
+akkoord
+
+Assistant (implementatie):
+- Backend-only exec sessie toegevoegd in control/app_containers.py.
+- Nieuwe endpoints:
+ - POST /containers/{name}/exec/start
+ - GET /containers/exec/{session_id}
+ - GET /containers/exec/{session_id}/stream
+ - POST /containers/exec/{session_id}/input
+ - POST /containers/exec/{session_id}/resize
+ - POST /containers/exec/{session_id}/stop
+- Compile checks OK.
+- Op actieve runtime eerst 404 tot backend redeploy (verwacht).
+
+User:
+ja
+
+Assistant:
+Deploy/run stappen gegeven (build image, restart backend container, curl tests).
+
+User (testresultaten):
+- OpenAPI toont nieuwe exec routes.
+- start/stream/input/resize/stop werken.
+- Ping bleef doorlopen in terminal 1.
+
+Assistant:
+Uitleg: twee verschillende session_id’s gebruikt; stop de juiste sessie vanuit andere terminal.
+
+User:
+Kan niet in terminal 1 want ik kan niets invoeren, ping zit in soort loop
+
+Assistant:
+Gebruik andere terminal of Ctrl+C in stream-terminal.
+
+User:
+Ja curl .../stop werkt in een andere terminal :)
+
+Assistant:
+Bevestigd. Volgende stap: UI (1 menu-item, 2 modal terminal, 3 resize).
+
+User:
+Als 1, 2 en drie klaar zijn kan ik dan in een terminal windows vanuit de webui? (nog niets implementeren)
+
+Assistant:
+Ja, met 1/2/3 heb je functionele interactieve web-terminal (basis), met optionele latere polish.
+
+User:
+Aplly 1, 2 en 3
+
+Assistant (UI implementatie):
+- Exec shell toegevoegd aan container three-dot menu (niet pod).
+- Terminal modal toegevoegd in index.html.
+- Frontend logic toegevoegd in containers.js:
+ - session start
+ - SSE stream
+ - input verzenden
+ - stop bij modal sluiten
+ - resize via ResizeObserver
+- CSS styling toegevoegd in app.css.
+- JS syntax check OK.
+
+User:
+Kun je deze gehel chat in en text bestand zetten, zodat ik deze kan bewaren?
+
+Assistant:
+Ik zet een export in een tekstbestand.
+
diff --git a/webui/html/assets/css/app.css b/webui/html/assets/css/app.css
index 3ef6af8..15a48a6 100644
--- a/webui/html/assets/css/app.css
+++ b/webui/html/assets/css/app.css
@@ -487,6 +487,9 @@ pre{
align-items: center;
gap: 8px;
}
+.execInputRow #execTerminalBufferInfo{
+ white-space: nowrap;
+}
.execInputRow .input{
flex: 1;
}
diff --git a/webui/html/assets/js/tabs/containers.js b/webui/html/assets/js/tabs/containers.js
index a161a8e..bc9cf5b 100644
--- a/webui/html/assets/js/tabs/containers.js
+++ b/webui/html/assets/js/tabs/containers.js
@@ -404,16 +404,39 @@ let execTerminalState = {
container: '',
sessionId: '',
source: null,
+ reconnectTimer: null,
+ reconnectAttempts: 0,
+ reconnectEnabled: false,
+ lastSeq: 0,
resizeTimer: null,
resizeObserver: null,
+ inputQueue: [],
+ inputFlushTimer: null,
+ inputFlushInFlight: false,
+ rawMode: false,
+ outputText: '',
+ outputLineCount: 0,
+ outputTruncated: false,
};
+const EXEC_OUTPUT_MAX_CHARS = 200000;
+const EXEC_OUTPUT_TARGET_CHARS = 160000;
+const EXEC_OUTPUT_MAX_LINES = 4000;
+const EXEC_OUTPUT_TARGET_LINES = 3200;
+const EXEC_RECONNECT_BASE_MS = 350;
+const EXEC_RECONNECT_MAX_MS = 5000;
+const EXEC_RECONNECT_MAX_ATTEMPTS = 8;
+const EXEC_PASTE_CHUNK_SIZE = 2048;
+
function _execEls() {
return {
back: document.getElementById('execModalBack'),
title: document.getElementById('execModalTitle'),
output: document.getElementById('execTerminalOutput'),
+ bufferInfo: document.getElementById('execTerminalBufferInfo'),
input: document.getElementById('execTerminalInput'),
+ sendBtn: document.getElementById('execTerminalSendBtn'),
+ rawBtn: document.getElementById('execRawModeBtn'),
status: document.getElementById('execTerminalStatus'),
modal: document.getElementById('execTerminalModal'),
};
@@ -424,16 +447,80 @@ function _execSetStatus(msg) {
if (status) status.textContent = msg || '';
}
+function _execConnectedStatus() {
+ const sid = execTerminalState.sessionId || '';
+ return sid ? `Connected (${sid})` : 'Connected';
+}
+
function _execAppendOutput(txt) {
const { output } = _execEls();
if (!output || !txt) return;
- output.textContent += txt;
- output.scrollTop = output.scrollHeight;
+
+ const wasNearBottom = (output.scrollHeight - (output.scrollTop + output.clientHeight)) <= 24;
+
+ execTerminalState.outputText += txt;
+ execTerminalState.outputLineCount += ((txt.match(/\n/g) || []).length);
+
+ _execTrimOutputBufferIfNeeded();
+
+ output.textContent = execTerminalState.outputText;
+ if (wasNearBottom) output.scrollTop = output.scrollHeight;
+ _execUpdateBufferInfo();
}
function _execClearOutput() {
const { output } = _execEls();
+ execTerminalState.outputText = '';
+ execTerminalState.outputLineCount = 0;
+ execTerminalState.outputTruncated = false;
if (output) output.textContent = '';
+ _execUpdateBufferInfo();
+}
+
+function _execUpdateBufferInfo() {
+ const { bufferInfo } = _execEls();
+ if (!bufferInfo) return;
+ if (execTerminalState.outputTruncated) {
+ bufferInfo.textContent = `Output truncated (showing last ~${EXEC_OUTPUT_TARGET_LINES} lines)`;
+ } else {
+ bufferInfo.textContent = '';
+ }
+}
+
+function _execTrimOutputBufferIfNeeded() {
+ const text = execTerminalState.outputText;
+ const lines = execTerminalState.outputLineCount;
+ const overChars = text.length > EXEC_OUTPUT_MAX_CHARS;
+ const overLines = lines > EXEC_OUTPUT_MAX_LINES;
+ if (!overChars && !overLines) return;
+
+ let cutAt = 0;
+
+ if (overChars) {
+ cutAt = Math.max(cutAt, text.length - EXEC_OUTPUT_TARGET_CHARS);
+ }
+
+ if (overLines) {
+ const toDrop = lines - EXEC_OUTPUT_TARGET_LINES;
+ let seen = 0;
+ for (let i = 0; i < text.length; i++) {
+ if (text.charCodeAt(i) === 10) seen += 1;
+ if (seen >= toDrop) {
+ cutAt = Math.max(cutAt, i + 1);
+ break;
+ }
+ }
+ }
+
+ if (cutAt <= 0) return;
+
+ const dropped = text.slice(0, cutAt);
+ execTerminalState.outputText = text.slice(cutAt);
+ execTerminalState.outputLineCount = Math.max(
+ 0,
+ execTerminalState.outputLineCount - ((dropped.match(/\n/g) || []).length)
+ );
+ execTerminalState.outputTruncated = true;
}
function _execCloseEventSource() {
@@ -443,6 +530,86 @@ function _execCloseEventSource() {
}
}
+function _execCancelReconnect() {
+ if (execTerminalState.reconnectTimer) {
+ clearTimeout(execTerminalState.reconnectTimer);
+ execTerminalState.reconnectTimer = null;
+ }
+ execTerminalState.reconnectAttempts = 0;
+}
+
+function _execBackoffDelayMs(attempt) {
+ const a = Math.max(1, Number(attempt || 1));
+ return Math.min(EXEC_RECONNECT_MAX_MS, EXEC_RECONNECT_BASE_MS * (2 ** (a - 1)));
+}
+
+function _execAttachStream(afterSeq = 0, wasReconnect = false) {
+ const sid = execTerminalState.sessionId;
+ if (!sid) return;
+ _execCloseEventSource();
+
+ const es = new EventSource(`/api/containers/exec/${encodeURIComponent(sid)}/stream?after=${Math.max(0, Number(afterSeq || 0))}`);
+ execTerminalState.source = es;
+
+ es.addEventListener('open', () => {
+ if (!wasReconnect) return;
+ execTerminalState.reconnectAttempts = 0;
+ _execSetStatus(`Reconnected (${sid})`);
+ });
+
+ es.addEventListener('exec', (ev) => {
+ try {
+ const msg = JSON.parse(ev.data || '{}');
+ const seq = Number(msg?.seq);
+ if (Number.isFinite(seq) && seq > execTerminalState.lastSeq) execTerminalState.lastSeq = seq;
+ if (msg?.type === 'stdout') _execAppendOutput(msg.data || '');
+ if (msg?.type === 'closed') {
+ execTerminalState.reconnectEnabled = false;
+ _execCancelReconnect();
+ _execCloseEventSource();
+ _execSetStatus(`Session closed: ${msg.data || 'closed'}`);
+ }
+ } catch (_) {}
+ });
+
+ es.addEventListener('ping', () => {});
+
+ es.onerror = () => {
+ _execCloseEventSource();
+
+ if (!execTerminalState.reconnectEnabled || !execTerminalState.sessionId) {
+ if (execTerminalState.rawMode) {
+ _execSwitchToLineFallback('stream disconnected');
+ } else {
+ _execSetStatus('Stream disconnected');
+ }
+ return;
+ }
+
+ execTerminalState.reconnectAttempts += 1;
+ const attempt = execTerminalState.reconnectAttempts;
+ if (attempt > EXEC_RECONNECT_MAX_ATTEMPTS) {
+ execTerminalState.reconnectEnabled = false;
+ if (execTerminalState.rawMode) {
+ _execSwitchToLineFallback('reconnect failed');
+ } else {
+ _execSetStatus('Stream disconnected');
+ }
+ return;
+ }
+
+ const delay = _execBackoffDelayMs(attempt);
+ _execSetStatus(`Reconnecting... (${attempt}/${EXEC_RECONNECT_MAX_ATTEMPTS})`);
+
+ if (execTerminalState.reconnectTimer) clearTimeout(execTerminalState.reconnectTimer);
+ execTerminalState.reconnectTimer = setTimeout(() => {
+ execTerminalState.reconnectTimer = null;
+ if (!execTerminalState.reconnectEnabled || !execTerminalState.sessionId) return;
+ _execAttachStream(execTerminalState.lastSeq, true);
+ }, delay);
+ };
+}
+
function _execComputeSize() {
const { output } = _execEls();
if (!output) return { rows: 24, cols: 80 };
@@ -472,10 +639,168 @@ function _execScheduleResize() {
}, 120);
}
+function _execUpdateInputModeUi() {
+ const { input, rawBtn, sendBtn } = _execEls();
+ const raw = !!execTerminalState.rawMode;
+ if (rawBtn) rawBtn.textContent = raw ? 'Raw keys: On' : 'Raw keys: Off';
+ if (sendBtn) sendBtn.disabled = raw;
+ if (input) {
+ if (raw) {
+ input.placeholder = 'Raw mode: type directly';
+ } else {
+ input.placeholder = 'Type command and press Enter...';
+ }
+ }
+}
+
+function _execSwitchToLineFallback(reason) {
+ if (!execTerminalState.rawMode) return;
+ execTerminalState.rawMode = false;
+ _execUpdateInputModeUi();
+ _execSetStatus(`Raw mode fallback: ${reason || 'input unavailable'}`);
+ _execFocusInputSoon(0);
+}
+
+function _execIsModalOpen() {
+ const { back } = _execEls();
+ return !!(back && back.style.display !== 'none');
+}
+
+function _execFocusInputSoon(delayMs = 0) {
+ const { input } = _execEls();
+ if (!input) return;
+ setTimeout(() => {
+ if (!_execIsModalOpen()) return;
+ try { input.focus(); } catch (_) {}
+ }, delayMs);
+}
+
+function _execControlCharFromKey(key) {
+ if (!key) return '';
+ const k = String(key);
+ if (k.length !== 1) return '';
+ const upper = k.toUpperCase();
+ if (upper >= 'A' && upper <= 'Z') {
+ return String.fromCharCode(upper.charCodeAt(0) - 64);
+ }
+ if (k === ' ') return '\u0000';
+ return '';
+}
+
+function _execRawBytesFromKeyEvent(ev) {
+ if (!ev) return null;
+ if (ev.isComposing) return null;
+ if (ev.repeat && ['Tab', 'Escape'].includes(ev.key)) return null;
+
+ if (ev.ctrlKey && !ev.altKey && !ev.metaKey) {
+ const ctrl = _execControlCharFromKey(ev.key);
+ if (ctrl) return ctrl;
+ }
+
+ switch (ev.key) {
+ case 'Enter': return '\r';
+ case 'Backspace': return '\u007f';
+ case 'Tab': return '\t';
+ case 'Escape': return '\u001b';
+ case 'ArrowUp': return '\u001b[A';
+ case 'ArrowDown': return '\u001b[B';
+ case 'ArrowRight': return '\u001b[C';
+ case 'ArrowLeft': return '\u001b[D';
+ case 'Home': return '\u001b[H';
+ case 'End': return '\u001b[F';
+ case 'Delete': return '\u001b[3~';
+ case 'PageUp': return '\u001b[5~';
+ case 'PageDown': return '\u001b[6~';
+ default:
+ break;
+ }
+
+ if (!ev.ctrlKey && !ev.altKey && !ev.metaKey && typeof ev.key === 'string' && ev.key.length === 1) {
+ return ev.key;
+ }
+
+ return null;
+}
+
+function _execResetInputQueue(reason = 'queue-reset') {
+ if (execTerminalState.inputFlushTimer) {
+ clearTimeout(execTerminalState.inputFlushTimer);
+ execTerminalState.inputFlushTimer = null;
+ }
+ const pending = execTerminalState.inputQueue.splice(0, execTerminalState.inputQueue.length);
+ for (const item of pending) {
+ try {
+ item.reject(new Error(reason));
+ } catch (_) {}
+ }
+}
+
+function _execScheduleInputFlush() {
+ if (execTerminalState.inputFlushInFlight || execTerminalState.inputFlushTimer) return;
+ execTerminalState.inputFlushTimer = setTimeout(() => {
+ execTerminalState.inputFlushTimer = null;
+ _execFlushInputQueue();
+ }, 0);
+}
+
+async function _execFlushInputQueue() {
+ if (execTerminalState.inputFlushInFlight) return;
+ execTerminalState.inputFlushInFlight = true;
+ try {
+ while (execTerminalState.inputQueue.length > 0) {
+ const item = execTerminalState.inputQueue[0];
+ const sid = execTerminalState.sessionId;
+ if (!sid) {
+ item.reject(new Error('Session not connected'));
+ execTerminalState.inputQueue.shift();
+ continue;
+ }
+ try {
+ await api(`/containers/exec/${encodeURIComponent(sid)}/input`, 'POST', { data: item.data });
+ item.resolve();
+ } catch (e) {
+ item.reject(e);
+ } finally {
+ execTerminalState.inputQueue.shift();
+ }
+ }
+ } finally {
+ execTerminalState.inputFlushInFlight = false;
+ if (execTerminalState.inputQueue.length > 0) _execScheduleInputFlush();
+ }
+}
+
+function _execEnqueueInput(data) {
+ return new Promise((resolve, reject) => {
+ execTerminalState.inputQueue.push({ data, resolve, reject });
+ _execScheduleInputFlush();
+ });
+}
+
+async function _execEnqueueChunkedInput(data, chunkSize = EXEC_PASTE_CHUNK_SIZE) {
+ const txt = String(data || '');
+ if (!txt) return { chunks: 0, bytes: 0 };
+ const size = Math.max(256, Number(chunkSize || EXEC_PASTE_CHUNK_SIZE));
+ const chunks = Math.ceil(txt.length / size);
+ let sent = 0;
+ for (let i = 0; i < txt.length; i += size) {
+ const part = txt.slice(i, i + size);
+ await _execEnqueueInput(part);
+ sent += part.length;
+ }
+ return { chunks, bytes: sent };
+}
+
async function containerExecOpen(name) {
const els = _execEls();
execTerminalState.container = name;
execTerminalState.sessionId = '';
+ execTerminalState.lastSeq = 0;
+ execTerminalState.reconnectEnabled = false;
+ _execCancelReconnect();
+ execTerminalState.rawMode = true;
+ _execUpdateInputModeUi();
+ _execResetInputQueue();
_execCloseEventSource();
_execClearOutput();
_execSetStatus('Starting exec session...');
@@ -488,24 +813,10 @@ async function containerExecOpen(name) {
const sid = res?.session_id;
if (!sid) throw new Error('Geen session_id ontvangen');
execTerminalState.sessionId = sid;
+ execTerminalState.lastSeq = 0;
+ execTerminalState.reconnectEnabled = true;
_execSetStatus(`Connected (${sid})`);
-
- const es = new EventSource(`/api/containers/exec/${encodeURIComponent(sid)}/stream`);
- execTerminalState.source = es;
-
- es.addEventListener('exec', (ev) => {
- try {
- const msg = JSON.parse(ev.data || '{}');
- if (msg?.type === 'stdout') _execAppendOutput(msg.data || '');
- if (msg?.type === 'closed') _execSetStatus(`Session closed: ${msg.data || 'closed'}`);
- } catch (_) {}
- });
-
- es.addEventListener('ping', () => {});
-
- es.onerror = () => {
- _execSetStatus('Stream disconnected');
- };
+ _execAttachStream(0, false);
_execScheduleResize();
@@ -529,26 +840,67 @@ async function containerExecSendInput() {
const els = _execEls();
const sid = execTerminalState.sessionId;
if (!sid || !els.input) return;
+ if (execTerminalState.rawMode) return;
const raw = els.input.value || '';
if (!raw) return;
els.input.value = '';
try {
- await api(`/containers/exec/${encodeURIComponent(sid)}/input`, 'POST', { data: raw + '\n' });
+ await _execEnqueueInput(raw + '\n');
} catch (e) {
_execAppendOutput(`\n[ERROR] ${e.message || e}\n`);
}
}
function containerExecHandleInputKey(ev) {
+ if (execTerminalState.rawMode) {
+ const data = _execRawBytesFromKeyEvent(ev);
+ if (data === null) return;
+ ev.preventDefault();
+ _execEnqueueInput(data).catch((e) => {
+ _execAppendOutput(`\n[ERROR] ${e.message || e}\n`);
+ _execSwitchToLineFallback('input error');
+ });
+ return;
+ }
if (ev.key !== 'Enter') return;
ev.preventDefault();
containerExecSendInput();
}
+function containerExecHandleInputPaste(ev) {
+ if (!execTerminalState.rawMode) return;
+ ev.preventDefault();
+ const txt = ev?.clipboardData?.getData('text') || '';
+ if (!txt) return;
+ const before = _execEls().status?.textContent || '';
+ const count = Math.ceil(txt.length / EXEC_PASTE_CHUNK_SIZE);
+ _execSetStatus(`Pasting ${count} chunks...`);
+ _execEnqueueChunkedInput(txt).then(() => {
+ if (execTerminalState.sessionId) _execSetStatus(_execConnectedStatus());
+ }).catch((e) => {
+ _execSetStatus(before || _execConnectedStatus());
+ _execAppendOutput(`\n[ERROR] ${e.message || e}\n`);
+ _execSwitchToLineFallback('paste input error');
+ });
+}
+
+function containerExecHandleInputBlur() {
+ if (!execTerminalState.rawMode) return;
+ _execFocusInputSoon(0);
+}
+
+function containerExecToggleRawMode() {
+ execTerminalState.rawMode = !execTerminalState.rawMode;
+ _execUpdateInputModeUi();
+ _execFocusInputSoon(0);
+}
+
async function containerExecClose() {
const els = _execEls();
const sid = execTerminalState.sessionId;
+ execTerminalState.reconnectEnabled = false;
+ _execCancelReconnect();
_execCloseEventSource();
if (execTerminalState.resizeObserver) {
try { execTerminalState.resizeObserver.disconnect(); } catch (_) {}
@@ -558,8 +910,10 @@ async function containerExecClose() {
clearTimeout(execTerminalState.resizeTimer);
execTerminalState.resizeTimer = null;
}
+ _execResetInputQueue('session-closed');
execTerminalState.sessionId = '';
+ execTerminalState.lastSeq = 0;
if (els.back) els.back.style.display = 'none';
if (sid) {
diff --git a/webui/html/index.html b/webui/html/index.html
index 63e394b..bdfb63b 100644
--- a/webui/html/index.html
+++ b/webui/html/index.html
@@ -366,19 +366,27 @@
Exec
Disconnected
+