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fix: auto-reset web session on new client chat & make cookie optional with fallback #28

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fix: auto-reset web session on new client chat & make cookie optional with fallback #28

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922bf91
fix: auto-reset web session on new client conversation & fallback opt…
zenyxx-xd Jul 31, 2026
82ae645
fix: exclude title generation requests from resetting web session
zenyxx-xd Jul 31, 2026
5211ab1
fix: clear local session history on new conversation reset
zenyxx-xd Jul 31, 2026
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2 changes: 1 addition & 1 deletion scripts/doctor.js
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ function checkAuthFile(file) {
try { auth = JSON.parse(fs.readFileSync(file, 'utf8')); }
catch (e) { return { file, ok: false, issues: [`invalid JSON: ${e.message}`], auth: null }; }
if (!auth.token) issues.push('token missing');
if (!auth.cookie) issues.push('cookie missing');
// cookie optional
if (!auth.wasmUrl) issues.push('wasmUrl missing');
if (process.platform !== 'win32') {
const mode = fs.statSync(file).mode & 0o777;
Expand Down
33 changes: 28 additions & 5 deletions server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -178,7 +178,7 @@ function buildBaseHeaders(config = DS_CONFIG) {
"x-hif-leim": config.hif_leim || '',
"Origin": "https://chat.deepseek.com",
"Referer": "https://chat.deepseek.com/",
"Cookie": config.cookie || '',
"Cookie": config.cookie || "ds_cookie_preference=%7B%22level%22%3A%22all%22%7D;",
"Content-Type": "application/json",
};
}
Expand Down Expand Up @@ -224,7 +224,7 @@ function loadDeepSeekConfig({ fatal = true } = {}) {
}
return false;
}
function hasAuthConfig() { return accounts.some(a => a.config.token && a.config.cookie); }
function hasAuthConfig() { return accounts.some(a => a.config.token); }
function accountStatus(account) {
return {
id: account.id,
Expand All @@ -244,11 +244,12 @@ function selectAccountForSession(session) {
// If that account disappeared, lost credentials, or is cooling down,
// never reuse its session id under a different account.
resetRemoteSession(session);
session.history = [];
session.accountId = null;
}
const ready = accounts.filter(a => a.config.token && a.config.cookie && a.cooldownUntil <= now);
const ready = accounts.filter(a => a.config.token && a.cooldownUntil <= now);
if (ready.length === 0) {
const waiting = accounts.filter(a => a.config.token && a.config.cookie).sort((a, b) => a.cooldownUntil - b.cooldownUntil)[0];
const waiting = accounts.filter(a => a.config.token).sort((a, b) => a.cooldownUntil - b.cooldownUntil)[0];
if (waiting) {
const waitSec = Math.max(1, Math.ceil((waiting.cooldownUntil - now) / 1000));
// Tagged so the request handler returns 429 + Retry-After instead of a
Expand Down Expand Up @@ -614,6 +615,7 @@ async function askDeepSeekStream(prompt, agentId, model = 'deepseek-default', fr
if (resp.status === 400 || resp.status === 404 || resp.status === 500) {
console.log(`${agentTag} Session ${session.id} expired. Creating new session...`);
resetRemoteSession(session);
session.history = [];

const sr2 = await dsFetch('https://chat.deepseek.com/api/v0/chat_session/create', {
method: 'POST', headers: dsHeaders, body: '{}'
Expand Down Expand Up @@ -1795,7 +1797,7 @@ const server = http.createServer(async (req, res) => {
// one account can serve right now, so an aggregator/LB won't route to a cold pool.
if (req.method === 'GET' && url.pathname === '/readyz') {
const now = Date.now();
const ready = accounts.filter(a => a.config.token && a.config.cookie && a.cooldownUntil <= now).length;
const ready = accounts.filter(a => a.config.token && a.cooldownUntil <= now).length;
res.writeHead(ready > 0 ? 200 : 503, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ ready: ready > 0, ready_accounts: ready, total_accounts: accounts.length }));
return;
Expand Down Expand Up @@ -1961,6 +1963,22 @@ const server = http.createServer(async (req, res) => {
const session = getOrCreateAgentSession(agentId);
activeSession = session;

// Auto-reset DeepSeek web session if client starts a new conversation (no assistant turns yet)
const isTitleRequest = /generate\\s+(?:a\\s+)?(?:short\\s+)?title/i.test(lastUserText) || /title for this conversation/i.test(lastUserText);
if (!isTitleRequest) {
const hasAssistantTurns = messages.some(m => m && m.role === "assistant");
if (!hasAssistantTurns && session.id) {
console.log(`${agentTag} New conversation payload detected; resetting remote session.`);
resetRemoteSession(session);
session.history = [];
}
}
if (!hasAssistantTurns && session.id) {
console.log(`${agentTag} New conversation payload detected (no assistant turns); resetting remote session.`);
resetRemoteSession(session);
session.history = [];
}

// Roll over TTL/depth-limited sessions before deciding whether to
// inject local recovery history into the newly built prompt.
const promptRollover = prepareSessionForPrompt(session);
Expand Down Expand Up @@ -2122,6 +2140,7 @@ const server = http.createServer(async (req, res) => {
const reason = contextTooLong ? 'context-too-long response' : 'empty response';
console.log(`${agentTag} ${reason} (msg#${session.messageCount}, retry ${retryAttempt}/${MAX_EMPTY_RETRIES}, prompt=${retryPrompt.length} chars). Resetting session...`);
resetRemoteSession(session);
session.history = [];
// Brief delay before retry to let DeepSeek breathe
await new Promise(r => setTimeout(r, Math.min(500 * retryAttempt, 1500)));
const { resp: retryResp } = await askDeepSeekStream(retryPrompt, agentId, requestedModel);
Expand All @@ -2143,6 +2162,7 @@ const server = http.createServer(async (req, res) => {
const timedOut = deadlineHit();
const failureClass = classifyRecoveryFailure(modelError, timedOut);
const failure = resetRemoteSession(session);
session.history = [];
const errorType = failureClass.type;
const errorMessage = modelError?.content
|| (timedOut
Expand Down Expand Up @@ -2197,6 +2217,7 @@ const server = http.createServer(async (req, res) => {
if (!isContinuationRecoverySafe(contBeforeId, continuationCall)) {
console.log(`${agentTag} continuation rotated to ${contAccount.id} ≠ ${contBeforeId} — skipping (foreign session)`);
resetRemoteSession(session);
session.history = [];
break;
}
const contResult = await readDeepSeekResponse(contResp.body);
Expand Down Expand Up @@ -2227,6 +2248,7 @@ const server = http.createServer(async (req, res) => {
if (allowedToolNames.size > 0 && !toolCall && looksLikeToolCallMarkup(fullContent) && !clientGone && !deadlineHit()) {
console.log(`${agentTag} Tool-call markup detected but invalid/truncated (${fullContent.length} chars). Retrying with stricter prompt...`);
resetRemoteSession(session);
session.history = [];
await new Promise(r => setTimeout(r, 1000));
const strictPrompt = appendPromptInstruction(
freshPromptBuild.prompt,
Expand All @@ -2251,6 +2273,7 @@ const server = http.createServer(async (req, res) => {

if (allowedToolNames.size > 0 && !toolCall && looksLikeToolCallMarkup(fullContent)) {
const failure = resetRemoteSession(session);
session.history = [];
res.writeHead(502, { 'Content-Type': 'application/json' });
res.end(JSON.stringify({ error: {
message: 'DeepSeek returned malformed tool-call markup after one repair attempt',
Expand Down