| 1 | const fs = require("fs"); |
| 2 | const https = require("https"); |
| 3 | const http = require("http"); |
| 4 | const net = require("net"); |
| 5 | const tls = require("tls"); |
| 6 | const crypto = require("crypto"); |
| 7 | const { URL } = require("url"); |
| 8 | const { mkdir, chmod, stat, rename, readFile, unlink, writeFile } = fs.promises; |
| 9 | const { createWriteStream } = fs; |
| 10 | const path = require("path"); |
| 11 | |
| 12 | const { |
| 13 | checksumManifestUrl, |
| 14 | detectBinaryNames, |
| 15 | releaseAssetUrl, |
| 16 | releaseBinaryDirectory, |
| 17 | } = require("./artifacts"); |
| 18 | const { preflightGlibc } = require("./preflight-glibc"); |
| 19 | const pkg = require("../package.json"); |
| 20 | |
| 21 | const DEFAULT_TIMEOUT_MS = 300_000; // 5 minutes per attempt |
| 22 | const DEFAULT_STALL_MS = 30_000; // abort if no bytes for 30s |
| 23 | const MAX_ATTEMPTS = 5; |
| 24 | const BASE_BACKOFF_MS = 1_000; |
| 25 | |
| 26 | const RETRYABLE_NET_CODES = new Set([ |
| 27 | "ECONNRESET", |
| 28 | "ECONNREFUSED", |
| 29 | "ETIMEDOUT", |
| 30 | "EAI_AGAIN", |
| 31 | "ENETUNREACH", |
| 32 | "EHOSTUNREACH", |
| 33 | "EPIPE", |
| 34 | "ECONNABORTED", |
| 35 | ]); |
| 36 | |
| 37 | class NonRetryableError extends Error { |
| 38 | constructor(message) { |
| 39 | super(message); |
| 40 | this.name = "NonRetryableError"; |
| 41 | this.nonRetryable = true; |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | class HttpStatusError extends Error { |
| 46 | constructor(status, url) { |
| 47 | super(`Request failed with status ${status}: ${url}`); |
| 48 | this.name = "HttpStatusError"; |
| 49 | this.status = status; |
| 50 | } |
| 51 | } |
| 52 | |
| 53 | class DownloadTimeoutError extends Error { |
| 54 | constructor(message) { |
| 55 | super(message); |
| 56 | this.name = "DownloadTimeoutError"; |
| 57 | this.code = "EDOWNLOADTIMEOUT"; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | function resolvePackageVersion() { |
| 62 | const configuredVersion = |
| 63 | process.env.DEEPSEEK_TUI_VERSION || |
| 64 | process.env.DEEPSEEK_VERSION || |
| 65 | pkg.deepseekBinaryVersion || |
| 66 | pkg.version; |
| 67 | return String(configuredVersion).trim(); |
| 68 | } |
| 69 | |
| 70 | function resolveRepo() { |
| 71 | return process.env.DEEPSEEK_TUI_GITHUB_REPO || process.env.DEEPSEEK_GITHUB_REPO || "Hmbown/DeepSeek-TUI"; |
| 72 | } |
| 73 | |
| 74 | function binaryPaths() { |
| 75 | const { deepseek, tui } = detectBinaryNames(); |
| 76 | const releaseDir = releaseBinaryDirectory(); |
| 77 | return { |
| 78 | deepseek: { |
| 79 | asset: deepseek, |
| 80 | target: path.join(releaseDir, process.platform === "win32" ? "deepseek.exe" : "deepseek"), |
| 81 | }, |
| 82 | tui: { |
| 83 | asset: tui, |
| 84 | target: path.join(releaseDir, process.platform === "win32" ? "deepseek-tui.exe" : "deepseek-tui"), |
| 85 | }, |
| 86 | }; |
| 87 | } |
| 88 | |
| 89 | // ──────────────────────────────────────────────────────────────────────────── |
| 90 | // Logging / progress |
| 91 | // ──────────────────────────────────────────────────────────────────────────── |
| 92 | |
| 93 | function isQuietInstall() { |
| 94 | if (process.env.DEEPSEEK_TUI_QUIET_INSTALL === "1") { |
| 95 | return true; |
| 96 | } |
| 97 | const level = (process.env.npm_config_loglevel || "").toLowerCase(); |
| 98 | return level === "silent" || level === "error"; |
| 99 | } |
| 100 | |
| 101 | function logInfo(message) { |
| 102 | if (isQuietInstall()) { |
| 103 | return; |
| 104 | } |
| 105 | process.stderr.write(`deepseek-tui: ${message}\n`); |
| 106 | } |
| 107 | |
| 108 | function envInt(name, fallback) { |
| 109 | const raw = process.env[name]; |
| 110 | if (!raw) { |
| 111 | return fallback; |
| 112 | } |
| 113 | const parsed = Number.parseInt(String(raw).trim(), 10); |
| 114 | if (!Number.isFinite(parsed) || parsed <= 0) { |
| 115 | return fallback; |
| 116 | } |
| 117 | return parsed; |
| 118 | } |
| 119 | |
| 120 | function downloadTimeoutMs() { |
| 121 | return envInt( |
| 122 | "DEEPSEEK_TUI_DOWNLOAD_TIMEOUT_MS", |
| 123 | envInt("DEEPSEEK_DOWNLOAD_TIMEOUT_MS", DEFAULT_TIMEOUT_MS), |
| 124 | ); |
| 125 | } |
| 126 | |
| 127 | function downloadStallMs() { |
| 128 | return envInt( |
| 129 | "DEEPSEEK_TUI_DOWNLOAD_STALL_MS", |
| 130 | envInt("DEEPSEEK_DOWNLOAD_STALL_MS", DEFAULT_STALL_MS), |
| 131 | ); |
| 132 | } |
| 133 | |
| 134 | function formatMb(bytes) { |
| 135 | return (bytes / (1024 * 1024)).toFixed(0); |
| 136 | } |
| 137 | |
| 138 | function createProgressReporter(assetName, totalBytes) { |
| 139 | if (isQuietInstall()) { |
| 140 | return { onChunk: () => {}, finish: () => {} }; |
| 141 | } |
| 142 | const isTty = !!process.stderr.isTTY; |
| 143 | const interactive = isTty; |
| 144 | const tickBytes = interactive ? 1 * 1024 * 1024 : 5 * 1024 * 1024; |
| 145 | const tickMs = 2_000; |
| 146 | |
| 147 | let received = 0; |
| 148 | let lastBytesPrinted = 0; |
| 149 | let lastTimePrinted = 0; |
| 150 | let everPrinted = false; |
| 151 | |
| 152 | const render = (final) => { |
| 153 | if (totalBytes && totalBytes > 0) { |
| 154 | const pct = Math.min(100, Math.round((received / totalBytes) * 100)); |
| 155 | const line = `deepseek-tui: downloading ${assetName}: ${formatMb(received)} / ${formatMb(totalBytes)} MB (${pct}%)`; |
| 156 | if (interactive) { |
| 157 | process.stderr.write(`${line}\r`); |
| 158 | } else { |
| 159 | process.stderr.write(`${line}\n`); |
| 160 | } |
| 161 | } else { |
| 162 | const line = `deepseek-tui: downloading ${assetName}: ${formatMb(received)} MB downloaded`; |
| 163 | if (interactive) { |
| 164 | process.stderr.write(`${line}\r`); |
| 165 | } else { |
| 166 | process.stderr.write(`${line}\n`); |
| 167 | } |
| 168 | } |
| 169 | everPrinted = true; |
| 170 | lastBytesPrinted = received; |
| 171 | lastTimePrinted = Date.now(); |
| 172 | }; |
| 173 | |
| 174 | return { |
| 175 | onChunk(chunkLen) { |
| 176 | received += chunkLen; |
| 177 | const now = Date.now(); |
| 178 | if ( |
| 179 | received - lastBytesPrinted >= tickBytes || |
| 180 | (interactive && now - lastTimePrinted >= tickMs) |
| 181 | ) { |
| 182 | render(false); |
| 183 | } |
| 184 | }, |
| 185 | finish() { |
| 186 | // Final line — always render once. |
| 187 | render(true); |
| 188 | if (interactive && everPrinted) { |
| 189 | // Move past the carriage-return line and emit a "done" footer. |
| 190 | process.stderr.write("\n"); |
| 191 | } |
| 192 | process.stderr.write(`deepseek-tui: ${assetName} ... done.\n`); |
| 193 | }, |
| 194 | }; |
| 195 | } |
| 196 | |
| 197 | // ──────────────────────────────────────────────────────────────────────────── |
| 198 | // Proxy support (HTTPS_PROXY / HTTP_PROXY / NO_PROXY) — pure Node, CONNECT |
| 199 | // tunnel + TLS upgrade for HTTPS targets. |
| 200 | // ──────────────────────────────────────────────────────────────────────────── |
| 201 | |
| 202 | function getProxyUrl(targetUrl) { |
| 203 | const isHttps = targetUrl.protocol === "https:"; |
| 204 | const candidates = isHttps |
| 205 | ? ["HTTPS_PROXY", "https_proxy", "HTTP_PROXY", "http_proxy"] |
| 206 | : ["HTTP_PROXY", "http_proxy"]; |
| 207 | for (const name of candidates) { |
| 208 | const raw = process.env[name]; |
| 209 | if (raw && String(raw).trim() !== "") { |
| 210 | return String(raw).trim(); |
| 211 | } |
| 212 | } |
| 213 | return null; |
| 214 | } |
| 215 | |
| 216 | function shouldBypassProxy(host) { |
| 217 | const raw = process.env.NO_PROXY || process.env.no_proxy; |
| 218 | if (!raw) { |
| 219 | return false; |
| 220 | } |
| 221 | const lower = String(host).toLowerCase(); |
| 222 | for (const part of String(raw).split(",")) { |
| 223 | const entry = part.trim().toLowerCase(); |
| 224 | if (!entry) { |
| 225 | continue; |
| 226 | } |
| 227 | if (entry === "*") { |
| 228 | return true; |
| 229 | } |
| 230 | // Strip leading dot and any explicit port. |
| 231 | const stripped = entry.replace(/^\./, "").replace(/:.*$/, ""); |
| 232 | if (!stripped) { |
| 233 | continue; |
| 234 | } |
| 235 | if (lower === stripped || lower.endsWith(`.${stripped}`)) { |
| 236 | return true; |
| 237 | } |
| 238 | } |
| 239 | return false; |
| 240 | } |
| 241 | |
| 242 | function parseProxy(proxyStr) { |
| 243 | // Accept "http://user:pass@host:port" and bare "host:port". |
| 244 | const normalized = /^[a-z][a-z0-9+\-.]*:\/\//i.test(proxyStr) |
| 245 | ? proxyStr |
| 246 | : `http://${proxyStr}`; |
| 247 | const u = new URL(normalized); |
| 248 | const port = u.port |
| 249 | ? Number.parseInt(u.port, 10) |
| 250 | : u.protocol === "https:" |
| 251 | ? 443 |
| 252 | : 80; |
| 253 | let auth = null; |
| 254 | if (u.username) { |
| 255 | const user = decodeURIComponent(u.username); |
| 256 | const pass = u.password ? decodeURIComponent(u.password) : ""; |
| 257 | auth = Buffer.from(`${user}:${pass}`).toString("base64"); |
| 258 | } |
| 259 | return { |
| 260 | protocol: u.protocol, |
| 261 | host: u.hostname, |
| 262 | port, |
| 263 | auth, |
| 264 | raw: proxyStr, |
| 265 | }; |
| 266 | } |
| 267 | |
| 268 | function connectThroughProxy(proxy, targetHost, targetPort, timeoutMs) { |
| 269 | return new Promise((resolve, reject) => { |
| 270 | const socket = net.connect({ host: proxy.host, port: proxy.port }); |
| 271 | let settled = false; |
| 272 | const fail = (err) => { |
| 273 | if (settled) return; |
| 274 | settled = true; |
| 275 | try { |
| 276 | socket.destroy(); |
| 277 | } catch { |
| 278 | // ignore |
| 279 | } |
| 280 | reject(err); |
| 281 | }; |
| 282 | |
| 283 | const timer = timeoutMs > 0 |
| 284 | ? setTimeout(() => fail(new DownloadTimeoutError( |
| 285 | `proxy CONNECT to ${proxy.host}:${proxy.port} timed out after ${timeoutMs} ms`, |
| 286 | )), timeoutMs) |
| 287 | : null; |
| 288 | |
| 289 | socket.once("error", (err) => { |
| 290 | if (timer) clearTimeout(timer); |
| 291 | // Surface proxy host so the user can fix it. |
| 292 | const wrapped = new Error( |
| 293 | `proxy connection failed (${proxy.host}:${proxy.port}): ${err.message}`, |
| 294 | ); |
| 295 | wrapped.code = err.code; |
| 296 | fail(wrapped); |
| 297 | }); |
| 298 | |
| 299 | socket.once("connect", () => { |
| 300 | const lines = [ |
| 301 | `CONNECT ${targetHost}:${targetPort} HTTP/1.1`, |
| 302 | `Host: ${targetHost}:${targetPort}`, |
| 303 | "User-Agent: deepseek-tui-installer", |
| 304 | "Proxy-Connection: keep-alive", |
| 305 | ]; |
| 306 | if (proxy.auth) { |
| 307 | lines.push(`Proxy-Authorization: Basic ${proxy.auth}`); |
| 308 | } |
| 309 | const req = `${lines.join("\r\n")}\r\n\r\n`; |
| 310 | |
| 311 | let buf = Buffer.alloc(0); |
| 312 | const onData = (chunk) => { |
| 313 | buf = Buffer.concat([buf, chunk]); |
| 314 | const idx = buf.indexOf("\r\n\r\n"); |
| 315 | if (idx === -1) { |
| 316 | if (buf.length > 16 * 1024) { |
| 317 | socket.removeListener("data", onData); |
| 318 | fail(new Error( |
| 319 | `proxy ${proxy.host}:${proxy.port} returned an oversized response header`, |
| 320 | )); |
| 321 | } |
| 322 | return; |
| 323 | } |
| 324 | socket.removeListener("data", onData); |
| 325 | const head = buf.slice(0, idx).toString("utf8"); |
| 326 | const firstLine = head.split(/\r?\n/, 1)[0] || ""; |
| 327 | const m = firstLine.match(/^HTTP\/\d\.\d\s+(\d{3})/); |
| 328 | if (!m) { |
| 329 | fail(new Error(`proxy ${proxy.host}:${proxy.port} returned invalid CONNECT reply: ${firstLine}`)); |
| 330 | return; |
| 331 | } |
| 332 | const code = Number.parseInt(m[1], 10); |
| 333 | if (code !== 200) { |
| 334 | fail(new Error( |
| 335 | `proxy ${proxy.host}:${proxy.port} refused CONNECT to ${targetHost}:${targetPort}: HTTP ${code}`, |
| 336 | )); |
| 337 | return; |
| 338 | } |
| 339 | if (timer) clearTimeout(timer); |
| 340 | if (settled) return; |
| 341 | settled = true; |
| 342 | // Any bytes past the header belong to the tunneled stream — but in |
| 343 | // practice CONNECT 200 has no body; if it did, we'd lose those bytes |
| 344 | // here. Keep it simple: trust well-behaved proxies. |
| 345 | resolve(socket); |
| 346 | }; |
| 347 | socket.on("data", onData); |
| 348 | socket.write(req, "utf8"); |
| 349 | }); |
| 350 | }); |
| 351 | } |
| 352 | |
| 353 | // ──────────────────────────────────────────────────────────────────────────── |
| 354 | // HTTP request with timeout, stall detection, and proxy support. |
| 355 | // ──────────────────────────────────────────────────────────────────────────── |
| 356 | |
| 357 | function httpRequest(rawUrl, opts = {}) { |
| 358 | const totalTimeoutMs = opts.totalTimeoutMs ?? downloadTimeoutMs(); |
| 359 | const stallMs = opts.stallMs ?? downloadStallMs(); |
| 360 | |
| 361 | return new Promise((resolve, reject) => { |
| 362 | let url; |
| 363 | try { |
| 364 | url = new URL(rawUrl); |
| 365 | } catch (err) { |
| 366 | reject(new NonRetryableError(`Invalid URL: ${rawUrl} (${err.message})`)); |
| 367 | return; |
| 368 | } |
| 369 | if (url.protocol !== "https:" && url.protocol !== "http:") { |
| 370 | reject(new NonRetryableError(`Unsupported protocol: ${url.protocol}`)); |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | const proxyStr = !shouldBypassProxy(url.hostname) ? getProxyUrl(url) : null; |
| 375 | const isHttps = url.protocol === "https:"; |
| 376 | const port = url.port |
| 377 | ? Number.parseInt(url.port, 10) |
| 378 | : isHttps |
| 379 | ? 443 |
| 380 | : 80; |
| 381 | |
| 382 | let totalTimer = null; |
| 383 | let stallTimer = null; |
| 384 | let settled = false; |
| 385 | let req = null; |
| 386 | let res = null; |
| 387 | |
| 388 | const cleanup = () => { |
| 389 | if (totalTimer) { |
| 390 | clearTimeout(totalTimer); |
| 391 | totalTimer = null; |
| 392 | } |
| 393 | if (stallTimer) { |
| 394 | clearTimeout(stallTimer); |
| 395 | stallTimer = null; |
| 396 | } |
| 397 | }; |
| 398 | |
| 399 | const fail = (err) => { |
| 400 | if (settled) return; |
| 401 | settled = true; |
| 402 | cleanup(); |
| 403 | try { |
| 404 | if (req && !req.destroyed) req.destroy(); |
| 405 | } catch { |
| 406 | // ignore |
| 407 | } |
| 408 | try { |
| 409 | if (res && !res.destroyed) res.destroy(); |
| 410 | } catch { |
| 411 | // ignore |
| 412 | } |
| 413 | reject(err); |
| 414 | }; |
| 415 | |
| 416 | if (totalTimeoutMs > 0) { |
| 417 | totalTimer = setTimeout(() => { |
| 418 | fail(new DownloadTimeoutError( |
| 419 | `download exceeded total timeout of ${totalTimeoutMs} ms ` + |
| 420 | `(set DEEPSEEK_TUI_DOWNLOAD_TIMEOUT_MS to raise it; current stall budget is ${stallMs} ms)`, |
| 421 | )); |
| 422 | }, totalTimeoutMs); |
| 423 | } |
| 424 | |
| 425 | const armStallTimer = () => { |
| 426 | if (stallMs <= 0) return; |
| 427 | if (stallTimer) clearTimeout(stallTimer); |
| 428 | stallTimer = setTimeout(() => { |
| 429 | fail(new DownloadTimeoutError( |
| 430 | `download stalled — no bytes received for ${stallMs} ms ` + |
| 431 | `(set DEEPSEEK_TUI_DOWNLOAD_STALL_MS to raise it; total budget is ${totalTimeoutMs} ms)`, |
| 432 | )); |
| 433 | }, stallMs); |
| 434 | }; |
| 435 | |
| 436 | const launch = (socket) => { |
| 437 | const reqOptions = { |
| 438 | method: "GET", |
| 439 | host: url.hostname, |
| 440 | port, |
| 441 | path: `${url.pathname}${url.search || ""}`, |
| 442 | headers: { |
| 443 | Host: url.host, |
| 444 | "User-Agent": "deepseek-tui-installer", |
| 445 | Accept: "*/*", |
| 446 | Connection: "close", |
| 447 | }, |
| 448 | }; |
| 449 | if (socket) { |
| 450 | reqOptions.createConnection = () => socket; |
| 451 | if (isHttps) { |
| 452 | // Wrap raw TCP socket from CONNECT in TLS. |
| 453 | const tlsSocket = tls.connect({ |
| 454 | socket, |
| 455 | servername: url.hostname, |
| 456 | ALPNProtocols: ["http/1.1"], |
| 457 | }); |
| 458 | tlsSocket.once("error", (err) => fail(err)); |
| 459 | reqOptions.createConnection = () => tlsSocket; |
| 460 | } |
| 461 | } |
| 462 | const client = isHttps ? https : http; |
| 463 | try { |
| 464 | req = client.request(reqOptions, (response) => { |
| 465 | res = response; |
| 466 | armStallTimer(); |
| 467 | response.on("data", () => { |
| 468 | armStallTimer(); |
| 469 | }); |
| 470 | response.on("end", () => { |
| 471 | cleanup(); |
| 472 | }); |
| 473 | response.on("error", (err) => fail(err)); |
| 474 | |
| 475 | const status = response.statusCode || 0; |
| 476 | if (status >= 300 && status < 400 && response.headers.location) { |
| 477 | cleanup(); |
| 478 | settled = true; |
| 479 | response.resume(); |
| 480 | resolve({ redirect: response.headers.location, response: null }); |
| 481 | return; |
| 482 | } |
| 483 | if (status < 200 || status >= 300) { |
| 484 | const err = new HttpStatusError(status, rawUrl); |
| 485 | // 4xx: non-retryable; 5xx: retryable. |
| 486 | if (status >= 400 && status < 500) { |
| 487 | err.nonRetryable = true; |
| 488 | } |
| 489 | fail(err); |
| 490 | return; |
| 491 | } |
| 492 | if (settled) return; |
| 493 | settled = true; |
| 494 | // Hand the live response stream to the caller. |
| 495 | resolve({ redirect: null, response }); |
| 496 | }); |
| 497 | req.once("error", (err) => fail(err)); |
| 498 | req.once("socket", (s) => { |
| 499 | // Belt-and-suspenders: surface socket-level errors quickly. |
| 500 | s.once("error", (err) => fail(err)); |
| 501 | }); |
| 502 | req.end(); |
| 503 | } catch (err) { |
| 504 | fail(err); |
| 505 | } |
| 506 | }; |
| 507 | |
| 508 | if (proxyStr) { |
| 509 | let proxy; |
| 510 | try { |
| 511 | proxy = parseProxy(proxyStr); |
| 512 | } catch (err) { |
| 513 | fail(new NonRetryableError( |
| 514 | `Invalid proxy URL "${proxyStr}": ${err.message}`, |
| 515 | )); |
| 516 | return; |
| 517 | } |
| 518 | if (!isHttps) { |
| 519 | // Plain HTTP through proxy — send absolute URI, no CONNECT. |
| 520 | const client = http; |
| 521 | try { |
| 522 | req = client.request( |
| 523 | { |
| 524 | host: proxy.host, |
| 525 | port: proxy.port, |
| 526 | method: "GET", |
| 527 | path: rawUrl, |
| 528 | headers: { |
| 529 | Host: url.host, |
| 530 | "User-Agent": "deepseek-tui-installer", |
| 531 | Accept: "*/*", |
| 532 | Connection: "close", |
| 533 | ...(proxy.auth ? { "Proxy-Authorization": `Basic ${proxy.auth}` } : {}), |
| 534 | }, |
| 535 | }, |
| 536 | (response) => { |
| 537 | res = response; |
| 538 | armStallTimer(); |
| 539 | response.on("data", () => armStallTimer()); |
| 540 | response.on("end", () => cleanup()); |
| 541 | response.on("error", (err) => fail(err)); |
| 542 | const status = response.statusCode || 0; |
| 543 | if (status >= 300 && status < 400 && response.headers.location) { |
| 544 | cleanup(); |
| 545 | settled = true; |
| 546 | response.resume(); |
| 547 | resolve({ redirect: response.headers.location, response: null }); |
| 548 | return; |
| 549 | } |
| 550 | if (status < 200 || status >= 300) { |
| 551 | const err = new HttpStatusError(status, rawUrl); |
| 552 | if (status >= 400 && status < 500) err.nonRetryable = true; |
| 553 | fail(err); |
| 554 | return; |
| 555 | } |
| 556 | if (settled) return; |
| 557 | settled = true; |
| 558 | resolve({ redirect: null, response }); |
| 559 | }, |
| 560 | ); |
| 561 | req.once("error", (err) => fail(err)); |
| 562 | req.end(); |
| 563 | } catch (err) { |
| 564 | fail(err); |
| 565 | } |
| 566 | return; |
| 567 | } |
| 568 | |
| 569 | // HTTPS through proxy: CONNECT tunnel + TLS upgrade. |
| 570 | connectThroughProxy(proxy, url.hostname, port, Math.max(stallMs, 5_000)) |
| 571 | .then((tcpSocket) => { |
| 572 | if (settled) { |
| 573 | try { tcpSocket.destroy(); } catch { /* ignore */ } |
| 574 | return; |
| 575 | } |
| 576 | const tlsSocket = tls.connect({ |
| 577 | socket: tcpSocket, |
| 578 | servername: url.hostname, |
| 579 | ALPNProtocols: ["http/1.1"], |
| 580 | }); |
| 581 | tlsSocket.once("error", (err) => fail(err)); |
| 582 | tlsSocket.once("secureConnect", () => { |
| 583 | if (settled) { |
| 584 | try { tlsSocket.destroy(); } catch { /* ignore */ } |
| 585 | return; |
| 586 | } |
| 587 | const reqOptions = { |
| 588 | method: "GET", |
| 589 | createConnection: () => tlsSocket, |
| 590 | path: `${url.pathname}${url.search || ""}`, |
| 591 | headers: { |
| 592 | Host: url.host, |
| 593 | "User-Agent": "deepseek-tui-installer", |
| 594 | Accept: "*/*", |
| 595 | Connection: "close", |
| 596 | }, |
| 597 | }; |
| 598 | try { |
| 599 | req = https.request(reqOptions, (response) => { |
| 600 | res = response; |
| 601 | armStallTimer(); |
| 602 | response.on("data", () => armStallTimer()); |
| 603 | response.on("end", () => cleanup()); |
| 604 | response.on("error", (err) => fail(err)); |
| 605 | const status = response.statusCode || 0; |
| 606 | if (status >= 300 && status < 400 && response.headers.location) { |
| 607 | cleanup(); |
| 608 | settled = true; |
| 609 | response.resume(); |
| 610 | resolve({ redirect: response.headers.location, response: null }); |
| 611 | return; |
| 612 | } |
| 613 | if (status < 200 || status >= 300) { |
| 614 | const err = new HttpStatusError(status, rawUrl); |
| 615 | if (status >= 400 && status < 500) err.nonRetryable = true; |
| 616 | fail(err); |
| 617 | return; |
| 618 | } |
| 619 | if (settled) return; |
| 620 | settled = true; |
| 621 | resolve({ redirect: null, response }); |
| 622 | }); |
| 623 | req.once("error", (err) => fail(err)); |
| 624 | req.end(); |
| 625 | } catch (err) { |
| 626 | fail(err); |
| 627 | } |
| 628 | }); |
| 629 | }) |
| 630 | .catch((err) => fail(err)); |
| 631 | return; |
| 632 | } |
| 633 | |
| 634 | // No proxy — direct connection. |
| 635 | launch(null); |
| 636 | }); |
| 637 | } |
| 638 | |
| 639 | // ──────────────────────────────────────────────────────────────────────────── |
| 640 | // Retry wrapper |
| 641 | // ──────────────────────────────────────────────────────────────────────────── |
| 642 | |
| 643 | function isRetryable(err) { |
| 644 | if (!err) return false; |
| 645 | if (err.nonRetryable) return false; |
| 646 | if (err instanceof NonRetryableError) return false; |
| 647 | if (err instanceof DownloadTimeoutError) return true; |
| 648 | if (err instanceof HttpStatusError) { |
| 649 | return err.status >= 500; |
| 650 | } |
| 651 | if (err.code && RETRYABLE_NET_CODES.has(err.code)) return true; |
| 652 | // Network-flavored messages we may see without a code. |
| 653 | const msg = String(err.message || "").toLowerCase(); |
| 654 | if (msg.includes("network") && msg.includes("unreachable")) return true; |
| 655 | if (msg.includes("socket hang up")) return true; |
| 656 | if (msg.includes("aborted")) return true; |
| 657 | return false; |
| 658 | } |
| 659 | |
| 660 | function backoffDelay(attempt) { |
| 661 | // attempt is 1-indexed; first retry waits ~1s. |
| 662 | const base = BASE_BACKOFF_MS * 2 ** (attempt - 1); |
| 663 | const jitter = (Math.random() * 0.4 - 0.2) * base; // ±20% |
| 664 | return Math.max(0, Math.round(base + jitter)); |
| 665 | } |
| 666 | |
| 667 | function sleep(ms) { |
| 668 | return new Promise((resolve) => setTimeout(resolve, ms)); |
| 669 | } |
| 670 | |
| 671 | async function withRetry(label, fn) { |
| 672 | let lastErr; |
| 673 | for (let attempt = 1; attempt <= MAX_ATTEMPTS; attempt++) { |
| 674 | try { |
| 675 | return await fn(attempt); |
| 676 | } catch (err) { |
| 677 | lastErr = err; |
| 678 | if (!isRetryable(err) || attempt === MAX_ATTEMPTS) { |
| 679 | break; |
| 680 | } |
| 681 | const wait = backoffDelay(attempt); |
| 682 | logInfo( |
| 683 | `${label} failed (attempt ${attempt}/${MAX_ATTEMPTS}): ${err.message}; retrying in ${wait} ms`, |
| 684 | ); |
| 685 | await sleep(wait); |
| 686 | } |
| 687 | } |
| 688 | const msg = lastErr && lastErr.message ? lastErr.message : String(lastErr); |
| 689 | const wrapped = new Error( |
| 690 | `${label} failed after ${MAX_ATTEMPTS} attempt(s): ${msg}`, |
| 691 | ); |
| 692 | if (lastErr && lastErr.stack) { |
| 693 | wrapped.cause = lastErr; |
| 694 | } |
| 695 | throw wrapped; |
| 696 | } |
| 697 | |
| 698 | // ──────────────────────────────────────────────────────────────────────────── |
| 699 | // Public download primitives (now retry + progress aware) |
| 700 | // ──────────────────────────────────────────────────────────────────────────── |
| 701 | |
| 702 | async function followRedirects(url, opts) { |
| 703 | const maxRedirects = 10; |
| 704 | let current = url; |
| 705 | for (let hop = 0; hop < maxRedirects; hop++) { |
| 706 | const result = await httpRequest(current, opts); |
| 707 | if (result.redirect) { |
| 708 | try { |
| 709 | current = new URL(result.redirect, current).toString(); |
| 710 | } catch { |
| 711 | current = result.redirect; |
| 712 | } |
| 713 | continue; |
| 714 | } |
| 715 | return result; |
| 716 | } |
| 717 | throw new NonRetryableError(`too many redirects starting at ${url}`); |
| 718 | } |
| 719 | |
| 720 | function streamToFile(response, destination, progress) { |
| 721 | return new Promise((resolve, reject) => { |
| 722 | const sink = createWriteStream(destination); |
| 723 | let done = false; |
| 724 | const finish = (err) => { |
| 725 | if (done) return; |
| 726 | done = true; |
| 727 | if (err) { |
| 728 | sink.destroy(); |
| 729 | reject(err); |
| 730 | } else { |
| 731 | resolve(); |
| 732 | } |
| 733 | }; |
| 734 | response.on("data", (chunk) => { |
| 735 | if (progress) progress.onChunk(chunk.length); |
| 736 | }); |
| 737 | response.on("error", (err) => finish(err)); |
| 738 | sink.on("error", (err) => finish(err)); |
| 739 | sink.on("finish", () => finish(null)); |
| 740 | response.pipe(sink); |
| 741 | }); |
| 742 | } |
| 743 | |
| 744 | async function download(url, destination, options = {}) { |
| 745 | await mkdir(path.dirname(destination), { recursive: true }); |
| 746 | const assetName = options.assetName || path.basename(destination); |
| 747 | await withRetry(`download ${assetName}`, async (attempt) => { |
| 748 | const result = await followRedirects(url, { |
| 749 | totalTimeoutMs: downloadTimeoutMs(), |
| 750 | stallMs: downloadStallMs(), |
| 751 | }); |
| 752 | const response = result.response; |
| 753 | const lenHeader = response.headers["content-length"]; |
| 754 | const total = lenHeader ? Number.parseInt(lenHeader, 10) : 0; |
| 755 | const progress = createProgressReporter(assetName, Number.isFinite(total) ? total : 0); |
| 756 | if (attempt > 1) { |
| 757 | logInfo(`retry attempt ${attempt}/${MAX_ATTEMPTS} for ${assetName}`); |
| 758 | } |
| 759 | try { |
| 760 | await streamToFile(response, destination, progress); |
| 761 | } catch (err) { |
| 762 | // Ensure we don't leave a partial file confusing future attempts. |
| 763 | try { |
| 764 | await unlink(destination); |
| 765 | } catch { |
| 766 | // ignore |
| 767 | } |
| 768 | throw err; |
| 769 | } |
| 770 | progress.finish(); |
| 771 | }); |
| 772 | } |
| 773 | |
| 774 | async function downloadText(url) { |
| 775 | return withRetry(`fetch ${url}`, async () => { |
| 776 | const result = await followRedirects(url, { |
| 777 | totalTimeoutMs: downloadTimeoutMs(), |
| 778 | stallMs: downloadStallMs(), |
| 779 | }); |
| 780 | const response = result.response; |
| 781 | response.setEncoding("utf8"); |
| 782 | // NOTE: do NOT use `for await (const chunk of response)` here. |
| 783 | // `httpRequest` attaches a `data` listener on the response to re-arm |
| 784 | // the stall timer, which puts the stream in flowing mode. The async |
| 785 | // iterator expects paused mode and will silently miss every chunk — |
| 786 | // this manifested as an empty checksum manifest in the npm wrapper |
| 787 | // smoke test ("Checksum manifest is missing <asset>"). Subscribing |
| 788 | // to `data` events directly stacks alongside the stall listener and |
| 789 | // both fire per chunk, so we collect the body correctly without |
| 790 | // disturbing the stall detection. |
| 791 | return new Promise((resolve, reject) => { |
| 792 | const chunks = []; |
| 793 | response.on("data", (chunk) => { |
| 794 | chunks.push(chunk); |
| 795 | }); |
| 796 | response.on("end", () => { |
| 797 | resolve(chunks.join("")); |
| 798 | }); |
| 799 | response.on("error", reject); |
| 800 | }); |
| 801 | }); |
| 802 | } |
| 803 | |
| 804 | async function readLocalVersion(file) { |
| 805 | return readFile(file, "utf8").catch(() => ""); |
| 806 | } |
| 807 | |
| 808 | async function fileExists(file) { |
| 809 | try { |
| 810 | const result = await stat(file); |
| 811 | return result.isFile(); |
| 812 | } catch { |
| 813 | return false; |
| 814 | } |
| 815 | } |
| 816 | |
| 817 | function parseChecksumManifest(text) { |
| 818 | const checksums = new Map(); |
| 819 | for (const line of text.split(/\r?\n/)) { |
| 820 | const trimmed = line.trim(); |
| 821 | if (!trimmed) { |
| 822 | continue; |
| 823 | } |
| 824 | const match = trimmed.match(/^([a-fA-F0-9]{64})\s+\*?(.+)$/); |
| 825 | if (!match) { |
| 826 | throw new Error(`Invalid checksum manifest line: ${trimmed}`); |
| 827 | } |
| 828 | checksums.set(match[2], match[1].toLowerCase()); |
| 829 | } |
| 830 | return checksums; |
| 831 | } |
| 832 | |
| 833 | async function sha256File(filePath) { |
| 834 | const content = await readFile(filePath); |
| 835 | return crypto.createHash("sha256").update(content).digest("hex"); |
| 836 | } |
| 837 | |
| 838 | async function verifyChecksum(filePath, assetName, checksums) { |
| 839 | const expected = checksums.get(assetName); |
| 840 | if (!expected) { |
| 841 | throw new NonRetryableError(`Checksum manifest is missing ${assetName}`); |
| 842 | } |
| 843 | const actual = await sha256File(filePath); |
| 844 | if (actual !== expected) { |
| 845 | // Bytes are corrupted; another fetch is unlikely to help without a fix |
| 846 | // upstream. Mark non-retryable. |
| 847 | throw new NonRetryableError( |
| 848 | `Checksum mismatch for ${assetName}: expected ${expected}, got ${actual}`, |
| 849 | ); |
| 850 | } |
| 851 | } |
| 852 | |
| 853 | async function loadChecksums(version, repo) { |
| 854 | return parseChecksumManifest(await downloadText(checksumManifestUrl(version, repo))); |
| 855 | } |
| 856 | |
| 857 | async function ensureBinary(targetPath, assetName, version, repo, getChecksums) { |
| 858 | const marker = `${targetPath}.version`; |
| 859 | const downloadIfNeeded = |
| 860 | process.env.DEEPSEEK_TUI_FORCE_DOWNLOAD === "1" || process.env.DEEPSEEK_FORCE_DOWNLOAD === "1"; |
| 861 | if (!downloadIfNeeded) { |
| 862 | const existing = await fileExists(targetPath); |
| 863 | if (existing) { |
| 864 | const markerVersion = await readLocalVersion(marker); |
| 865 | if (markerVersion === String(version)) { |
| 866 | return targetPath; |
| 867 | } |
| 868 | } |
| 869 | } |
| 870 | const checksums = await getChecksums(); |
| 871 | const url = releaseAssetUrl(assetName, version, repo); |
| 872 | const destination = `${targetPath}.${process.pid}.${Date.now()}.download`; |
| 873 | await download(url, destination, { assetName }); |
| 874 | try { |
| 875 | await verifyChecksum(destination, assetName, checksums); |
| 876 | preflightGlibc(destination); |
| 877 | } catch (error) { |
| 878 | await unlink(destination).catch(() => {}); |
| 879 | throw error; |
| 880 | } |
| 881 | if (process.platform !== "win32") { |
| 882 | await chmod(destination, 0o755); |
| 883 | } |
| 884 | await rename(destination, targetPath); |
| 885 | await writeFile(marker, String(version), "utf8"); |
| 886 | return targetPath; |
| 887 | } |
| 888 | |
| 889 | async function run() { |
| 890 | if (process.env.DEEPSEEK_TUI_DISABLE_INSTALL === "1" || process.env.DEEPSEEK_DISABLE_INSTALL === "1") { |
| 891 | return; |
| 892 | } |
| 893 | const version = resolvePackageVersion(); |
| 894 | const repo = resolveRepo(); |
| 895 | const paths = binaryPaths(); |
| 896 | const releaseDir = releaseBinaryDirectory(); |
| 897 | await mkdir(releaseDir, { recursive: true }); |
| 898 | |
| 899 | let checksumsPromise; |
| 900 | const getChecksums = () => { |
| 901 | if (!checksumsPromise) { |
| 902 | checksumsPromise = loadChecksums(version, repo); |
| 903 | } |
| 904 | return checksumsPromise; |
| 905 | }; |
| 906 | |
| 907 | await Promise.all([ |
| 908 | ensureBinary(paths.deepseek.target, paths.deepseek.asset, version, repo, getChecksums), |
| 909 | ensureBinary(paths.tui.target, paths.tui.asset, version, repo, getChecksums), |
| 910 | ]); |
| 911 | } |
| 912 | |
| 913 | async function getBinaryPath(name) { |
| 914 | await run(); |
| 915 | const paths = binaryPaths(); |
| 916 | if (name === "deepseek") { |
| 917 | return paths.deepseek.target; |
| 918 | } |
| 919 | if (name === "deepseek-tui") { |
| 920 | return paths.tui.target; |
| 921 | } |
| 922 | throw new Error(`Unknown binary: ${name}`); |
| 923 | } |
| 924 | |
| 925 | module.exports = { |
| 926 | getBinaryPath, |
| 927 | run, |
| 928 | }; |
| 929 | |
| 930 | if (require.main === module) { |
| 931 | run().catch((error) => { |
| 932 | console.error("deepseek-tui install failed:", error.message); |
| 933 | if (process.env.DEEPSEEK_TUI_OPTIONAL_INSTALL === "1") { |
| 934 | console.error( |
| 935 | "DEEPSEEK_TUI_OPTIONAL_INSTALL=1 set; continuing without a usable binary.", |
| 936 | ); |
| 937 | process.exit(0); |
| 938 | } |
| 939 | process.exit(1); |
| 940 | }); |
| 941 | } |
| 942 |