93837af09f
- Force stream:true and cloak decoy tools (bash, read) for OpenCode free tier - Support connection testing for opencode in testUtils - Expand error message slice limits in auth and ping to preserve workspace link - Add concise China region link chip in provider detail page Co-Authored-By: Claude Code <noreply@anthropic.com>
548 lines
21 KiB
JavaScript
548 lines
21 KiB
JavaScript
import crypto from "crypto";
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import { BaseExecutor } from "./base.js";
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import { PROVIDERS } from "../config/providers.js";
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import { MEMORY_CONFIG } from "../config/runtimeConfig.js";
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import { getThinkingLevels } from "../providers/thinkingLevels.js";
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import { injectReasoningContent } from "../utils/reasoningContentInjector.js";
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import { resolveSessionId } from "../utils/sessionManager.js";
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import { isMuseSparkModel } from "../providers/models/helpers.js";
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import { ANTHROPIC_API_VERSION } from "../providers/shared.js";
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import {
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normalizeResponsesInput,
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clampResponsesCallId,
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coerceResponsesArguments,
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coerceResponsesOutput,
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} from "../translator/formats/responsesApi.js";
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const OPENCODE_UA = "opencode/1.18.31";
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const MAX_SESSION_LENGTH = 256;
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const MAX_TOOL_NAME_LEN = 128;
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const SESSION_HEADER = "x-opencode-session";
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const SESSION_FIELD = "_opencodeSession";
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const REQ_FIELD = "_opencodeRequest";
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export const OPENCODE_SESSION_RE = /^ses_[0-9a-f]{12}[0-9A-Za-z]{14}$/;
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export const OPENCODE_REQUEST_RE = /^msg_[0-9a-f]{12}[0-9A-Za-z]{14}$/;
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const BASE62_CHARS = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
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// OpenCode free tier requires both 'bash' and 'read' in tools payload.
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// Injected as cloaked decoy tools so external CLI tools (e.g. Claude Code's Bash/Read)
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// take precedence while satisfying upstream verification.
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const OPENCODE_DECOY_CHAT_TOOLS = [
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{
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type: "function",
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function: {
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name: "bash",
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description: "This tool is currently unavailable and must not be used.",
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parameters: { type: "object", properties: {} },
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},
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},
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{
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type: "function",
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function: {
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name: "read",
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description: "This tool is currently unavailable and must not be used.",
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parameters: { type: "object", properties: {} },
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},
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},
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];
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const OPENCODE_DECOY_RESPONSES_TOOLS = [
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{
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type: "function",
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name: "bash",
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description: "This tool is currently unavailable and must not be used.",
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parameters: { type: "object", properties: {} },
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},
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{
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type: "function",
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name: "read",
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description: "This tool is currently unavailable and must not be used.",
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parameters: { type: "object", properties: {} },
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},
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];
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function cloakOpencodeTools(body, isResponses) {
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if (!body || typeof body !== "object") return;
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if (isResponses) {
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if (!Array.isArray(body.tools)) body.tools = [];
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const names = new Set(body.tools.map((t) => t.name || t.function?.name));
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for (const tool of OPENCODE_DECOY_RESPONSES_TOOLS) {
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if (!names.has(tool.name)) body.tools.push({ ...tool });
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}
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if (!body.tool_choice) body.tool_choice = "auto";
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} else {
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const hasTools = Array.isArray(body.tools) && body.tools.length > 0;
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if (!hasTools) {
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body.tools = OPENCODE_DECOY_CHAT_TOOLS.map((t) => ({ ...t, function: { ...t.function } }));
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if (!body.tool_choice) body.tool_choice = "none";
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} else {
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const names = new Set(body.tools.map((t) => t.function?.name || t.name));
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for (const tool of OPENCODE_DECOY_CHAT_TOOLS) {
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if (!names.has(tool.function.name)) {
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body.tools.push({ ...tool, function: { ...tool.function } });
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}
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}
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}
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}
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}
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function hasValidOpencodeVersion(ua) {
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const m = String(ua || "").match(/opencode\/(\d+)\.(\d+)(?:\.(\d+))?/i);
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if (!m) return false;
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const major = parseInt(m[1], 10);
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const minor = parseInt(m[2], 10);
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return major > 1 || (major === 1 && minor >= 17);
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}
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// Models served by /zen/v1/responses; every other model stays on /chat/completions.
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const RESPONSES_MODELS = new Set([
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"muse-spark-1.2-contributor-free",
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"muse-spark-1.3-contributor-free",
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]);
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const MESSAGES_MODELS = new Set(["union-alpha"]);
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let lastTimestamp = 0;
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let counter = 0;
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function unstableRandom() {
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const bytes = crypto.randomBytes(14);
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let randomPart = "";
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for (let i = 0; i < 14; i++) {
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randomPart += BASE62_CHARS[bytes[i] % 62];
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}
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return randomPart;
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}
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export function generateSessionId(timestamp = Date.now()) {
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if (timestamp !== lastTimestamp) {
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lastTimestamp = timestamp;
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counter = 0;
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}
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counter++;
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const current = BigInt(timestamp) * 0x1000n + BigInt(counter);
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const value = ~current;
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const time = Array.from({ length: 6 }, (_, index) =>
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Number((value >> BigInt(40 - 8 * index)) & 0xffn)
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.toString(16)
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.padStart(2, "0")
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).join("");
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return `ses_${time}${unstableRandom()}`;
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}
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export function generateRequestId(timestamp = Date.now()) {
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const current = BigInt(timestamp) * 0x1000n + 1n;
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const value = current;
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const time = Array.from({ length: 6 }, (_, index) =>
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Number((value >> BigInt(40 - 8 * index)) & 0xffn)
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.toString(16)
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.padStart(2, "0")
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).join("");
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return `msg_${time}${unstableRandom()}`;
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}
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export function translateSessionId(sessionId, clientTool = "") {
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if (typeof sessionId === "string" && OPENCODE_SESSION_RE.test(sessionId.trim())) {
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return sessionId.trim();
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}
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const digest = crypto
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.createHash("sha256")
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.update(`opencode\0${clientTool || "generic"}\0${sessionId || ""}`)
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.digest();
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const timeHex = digest.subarray(0, 6).toString("hex");
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let randomPart = "";
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for (let i = 6; i < 20; i++) {
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randomPart += BASE62_CHARS[digest[i] % 62];
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}
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return `ses_${timeHex}${randomPart}`;
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}
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function normalizeSession(value) {
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if (typeof value !== "string") return null;
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const normalized = value.trim();
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if (!normalized || normalized.length > MAX_SESSION_LENGTH) return null;
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return normalized;
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}
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function nativeSession(headers) {
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if (!headers || typeof headers !== "object") return null;
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for (const [key, value] of Object.entries(headers)) {
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if (key.toLowerCase() === SESSION_HEADER) {
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const normalized = normalizeSession(value);
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if (normalized && OPENCODE_SESSION_RE.test(normalized)) return normalized;
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}
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}
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return null;
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}
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// Upstream free-tier quota is accounted per session. Minting a fresh
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// x-opencode-session on every request burns through it and surfaces as
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// 429 FreeUsageLimitError with growing reset-after delays, while the real
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// CLI reuses one long-lived canonical session per conversation. Mirror
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// that: one stable canonical session per downstream identity, evicted
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// after MEMORY_CONFIG.sessionTtlMs like the other session stores.
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const stableOpencodeSessions = new Map();
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const MAX_STABLE_SESSIONS = 1000;
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const stableSessionCleanup = setInterval(() => {
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const now = Date.now();
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for (const [key, entry] of stableOpencodeSessions) {
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if (now - entry.lastUsed > MEMORY_CONFIG.sessionTtlMs) {
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stableOpencodeSessions.delete(key);
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}
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}
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}, MEMORY_CONFIG.sessionCleanupIntervalMs);
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if (stableSessionCleanup.unref) stableSessionCleanup.unref();
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function identityKey(credentials) {
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const connectionId = credentials?.connectionId || credentials?.id;
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if (connectionId) return `opencode:conn:${String(connectionId).slice(0, 128)}`;
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const raw = credentials?.rawHeaders || {};
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const auth = raw.authorization || raw.Authorization || raw["x-api-key"] || raw["X-Api-Key"] || "";
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if (auth) {
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const digest = crypto.createHash("sha256").update(String(auth)).digest("hex").slice(0, 32);
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return `opencode:auth:${digest}`;
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}
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return "opencode:default";
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}
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export function stableSessionId(credentials) {
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const key = identityKey(credentials);
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const existing = stableOpencodeSessions.get(key);
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if (existing) {
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existing.lastUsed = Date.now();
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stableOpencodeSessions.delete(key);
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stableOpencodeSessions.set(key, existing);
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return existing.sessionId;
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}
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const sessionId = generateSessionId();
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if (stableOpencodeSessions.size >= MAX_STABLE_SESSIONS) {
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stableOpencodeSessions.delete(stableOpencodeSessions.keys().next().value);
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}
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stableOpencodeSessions.set(key, { sessionId, lastUsed: Date.now() });
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return sessionId;
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}
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function lastUserText(body) {
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try {
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if (!body || typeof body !== "object") return "";
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const arr = Array.isArray(body.messages)
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? body.messages
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: Array.isArray(body.input)
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? body.input
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: null;
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if (!arr) return typeof body.input === "string" ? body.input.slice(-600) : "";
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for (let i = arr.length - 1; i >= 0; i--) {
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const msg = arr[i];
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if (!msg) continue;
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if (msg.role && msg.role !== "user") continue;
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const content = msg.content;
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if (typeof content === "string" && content.trim()) return content.trim().slice(-600);
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if (Array.isArray(content)) {
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const text = content
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.map((part) => (typeof part === "string" ? part : part?.text || part?.input_text || ""))
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.join(" ")
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.trim();
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if (text) return text.slice(-600);
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}
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}
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} catch {
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return "";
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}
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return "";
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}
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// The real CLI sends the current user message id (stable per turn, same on
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// retries) as x-opencode-request. Derive it deterministically from the
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// session plus the last user message so retries share the id.
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export function deriveRequestId(sessionId, body) {
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const text = lastUserText(body);
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if (!text) return generateRequestId();
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const digest = crypto
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.createHash("sha256")
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.update(`opencode-req\0${sessionId || ""}\0${text}`)
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.digest();
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const timeHex = digest.subarray(0, 6).toString("hex");
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let randomPart = "";
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for (let i = 6; i < 20; i++) {
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randomPart += BASE62_CHARS[digest[i] % 62];
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}
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const id = `msg_${timeHex}${randomPart}`;
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return OPENCODE_REQUEST_RE.test(id) ? id : generateRequestId();
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}
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function normalizeRequestId(value) {
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if (typeof value !== "string") return null;
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const normalized = value.trim();
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if (!normalized || normalized.length > MAX_SESSION_LENGTH) return null;
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return OPENCODE_REQUEST_RE.test(normalized) ? normalized : null;
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}
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function bodyHasSessionHints(body) {
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try {
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if (!body || typeof body !== "object") return false;
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if (typeof body.session_id === "string" && body.session_id.trim()) return true;
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if (typeof body.conversation_id === "string" && body.conversation_id.trim()) return true;
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if (typeof body.prompt_cache_key === "string" && body.prompt_cache_key.trim()) return true;
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if (body.metadata && typeof body.metadata.user_id === "string" && body.metadata.user_id.trim()) return true;
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if (body.request && body.request.sessionId != null && String(body.request.sessionId) !== "") return true;
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const arr = Array.isArray(body.messages)
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? body.messages
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: Array.isArray(body.input)
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? body.input
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: null;
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if (arr) {
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let assistantText = "";
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for (const msg of arr) {
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if (msg?.role === "assistant") {
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const content = msg.content;
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if (typeof content === "string") assistantText += content;
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else if (Array.isArray(content)) {
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for (const part of content) assistantText += part?.text || part?.output || "";
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}
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if (assistantText.length >= 50) return true;
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}
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}
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}
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return false;
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} catch {
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return false;
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}
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}
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// Strip the thinking suffix "model(level)" so registry lookups hit the base id.
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function baseModelId(model) {
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return String(model || "").replace(/\([^()]+\)\s*$/, "").trim();
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}
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function isResponsesModel(model) {
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const base = baseModelId(model);
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return RESPONSES_MODELS.has(base) || isMuseSparkModel(base);
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}
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function isMessagesModel(model) {
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return MESSAGES_MODELS.has(baseModelId(model));
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}
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function resolveOpencodeSession(body, credentials, providerSessionId, clientTool) {
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const headers = credentials?.rawHeaders || {};
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const native = nativeSession(headers);
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if (native) return native;
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let incoming = null;
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for (const [key, value] of Object.entries(headers)) {
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if (key.toLowerCase() === SESSION_HEADER) {
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incoming = normalizeSession(value);
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break;
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}
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}
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const hinted = incoming || normalizeSession(providerSessionId);
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if (hinted) return translateSessionId(hinted, clientTool);
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if (credentials?.connectionId || bodyHasSessionHints(body)) {
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let viaManager = null;
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try {
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viaManager = resolveSessionId({
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headers,
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body,
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connectionId: credentials?.connectionId,
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scope: "opencode",
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});
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} catch {
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viaManager = null;
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}
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if (viaManager) return translateSessionId(viaManager, clientTool);
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}
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return stableSessionId(credentials);
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}
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function resolveOpencodeRequestId(body, credentials, sessionId) {
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const raw = credentials?.rawHeaders || {};
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for (const [key, value] of Object.entries(raw)) {
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if (key.toLowerCase() === "x-opencode-request") {
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const normalized = normalizeRequestId(value);
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if (normalized) return normalized;
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break;
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}
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}
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return deriveRequestId(sessionId, body);
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}
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function normalizeResponsesTools(body) {
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if (!Array.isArray(body.tools)) return;
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const validNames = new Set();
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body.tools = body.tools.filter((tool) => {
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if (!tool || typeof tool !== "object" || Array.isArray(tool)) return false;
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const fn = tool.function && typeof tool.function === "object" && !Array.isArray(tool.function) ? tool.function : null;
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const rawName = typeof tool.name === "string" ? tool.name : (typeof fn?.name === "string" ? fn.name : "");
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const name = rawName.trim();
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if (!name) return false;
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const description = typeof tool.description === "string" ? tool.description : (typeof fn?.description === "string" ? fn.description : "");
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let parameters = (tool.parameters && typeof tool.parameters === "object" && !Array.isArray(tool.parameters))
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? tool.parameters
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: (fn?.parameters && typeof fn.parameters === "object" && !Array.isArray(fn.parameters) ? fn.parameters : { type: "object", properties: {} });
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if (parameters.type === "object" && !parameters.properties) parameters = { ...parameters, properties: {} };
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for (const k of Object.keys(tool)) delete tool[k];
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tool.type = "function";
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tool.name = name.slice(0, MAX_TOOL_NAME_LEN);
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if (description) tool.description = description;
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tool.parameters = parameters;
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validNames.add(tool.name);
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return true;
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});
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if (body.tool_choice && typeof body.tool_choice === "object" && !Array.isArray(body.tool_choice)) {
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if (body.tool_choice.type === "function") {
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const n = typeof body.tool_choice.name === "string" ? body.tool_choice.name.trim() : "";
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if (!n || !validNames.has(n)) delete body.tool_choice;
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}
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}
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}
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function sanitizeResponsesItems(body) {
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if (!Array.isArray(body.input)) return;
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body.input = body.input.filter((item) => {
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if (!item || typeof item !== "object" || Array.isArray(item)) return true;
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// Strip prior-turn reasoning items: OpenCode Free uses public/pooled credentials
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// (`Bearer public`) routing to an upstream OpenAI/Console account pool.
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// OpenAI Responses API strictly enforces that reasoning `encrypted_content`
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// can only be decrypted by the exact caller/account that issued it; sending it
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// across different accounts or rotating proxy relays triggers:
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// [invalid_request_error] reasoning `encrypted_content` was not issued to this caller (400).
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// Furthermore, under stateless mode (store=false), omitting encrypted_content
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// causes OpenAI to reject the referenced reasoning item as "not found or was deleted".
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// Dropping prior reasoning items allows multi-turn conversations and tool-calling
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// loops to succeed cleanly.
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if (item.type === "reasoning") return false;
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delete item.encrypted_content;
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delete item.reasoning_encrypted_content;
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if (item.type === "function_call") {
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if (!item.name || typeof item.name !== "string" || item.name.trim() === "") return false;
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item.name = item.name.trim().slice(0, MAX_TOOL_NAME_LEN);
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item.call_id = clampResponsesCallId(item.call_id);
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item.arguments = coerceResponsesArguments(item.arguments);
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return true;
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}
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if (item.type === "function_call_output") {
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item.call_id = clampResponsesCallId(item.call_id);
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item.output = coerceResponsesOutput(item.output);
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return true;
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}
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return true;
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});
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}
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function normalizeOpencodeReasoning(model, body) {
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const current = body.reasoning;
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const currentReasoning = current && typeof current === "object" && !Array.isArray(current)
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? current
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: null;
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const requestedEffort = typeof body.reasoning_effort === "string"
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? body.reasoning_effort
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: currentReasoning?.effort;
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if (typeof requestedEffort !== "string") return;
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const cleanModel = baseModelId(model || body.model);
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const supportedLevels = getThinkingLevels("opencode", cleanModel);
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let effort = requestedEffort.toLowerCase().trim();
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if ((effort === "max" || effort === "ultra") && supportedLevels?.length && !supportedLevels.includes(effort)) {
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if (effort === "ultra" && supportedLevels.includes("max")) effort = "max";
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else if (supportedLevels.includes("xhigh")) effort = "xhigh";
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}
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body.reasoning = { ...currentReasoning, effort };
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if (!body.reasoning.summary) body.reasoning.summary = "auto";
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delete body.reasoning_effort;
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}
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export class OpenCodeExecutor extends BaseExecutor {
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constructor() {
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super("opencode", PROVIDERS.opencode);
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}
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prepareRequestCredentials({ body, credentials, providerSessionId, clientTool } = {}) {
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const sourceCredentials = credentials || {};
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const session = resolveOpencodeSession(body, sourceCredentials, providerSessionId, clientTool);
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return {
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...sourceCredentials,
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[SESSION_FIELD]: session,
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[REQ_FIELD]: resolveOpencodeRequestId(body, sourceCredentials, session),
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};
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}
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transformRequest(model, body, stream, credentials) {
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if (body && typeof body === "object" && model && !body.model) body.model = model;
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// Zen rejects non-streaming requests on free models with 403 FreeTierError;
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// always stream upstream and let the handler layer aggregate for non-stream clients.
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if (body && typeof body === "object") body.stream = true;
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if (isResponsesModel(model || body?.model) && body && typeof body === "object") {
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// ponytail: chỉ model đã xác nhận auto-only; mở allowlist khi có bằng chứng.
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if ("tool_choice" in body && body.tool_choice !== "auto"
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&& this.config.quirks?.forceAutoToolChoiceModels?.includes(baseModelId(model))) {
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body.tool_choice = "auto";
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}
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const normalized = normalizeResponsesInput(body.input);
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if (normalized) body.input = normalized;
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if (!Array.isArray(body.input) || body.input.length === 0) {
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body.input = [{ type: "message", role: "user", content: [{ type: "input_text", text: "..." }] }];
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}
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// Responses API names the output cap max_output_tokens and takes thinking
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// as reasoning:{effort,summary} — normalize the Chat fields at this boundary.
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if (body.max_output_tokens === undefined) {
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if (body.max_completion_tokens !== undefined) body.max_output_tokens = body.max_completion_tokens;
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else if (body.max_tokens !== undefined) body.max_output_tokens = body.max_tokens;
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}
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delete body.max_tokens;
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delete body.max_completion_tokens;
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normalizeOpencodeReasoning(model, body);
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body.stream = true;
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body.store = false;
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normalizeResponsesTools(body);
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sanitizeResponsesItems(body);
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if (!Array.isArray(body.tools) || body.tools.length === 0) {
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cloakOpencodeTools(body, true);
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}
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} else if (body && typeof body === "object") {
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cloakOpencodeTools(body, false);
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}
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return injectReasoningContent({ provider: this.provider, model, body });
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}
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async execute(args) {
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return super.execute({ ...args, credentials: this.prepareRequestCredentials(args) });
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}
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buildUrl(model) {
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const base = this.config.baseUrl;
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if (isResponsesModel(model)) return `${base}/zen/v1/responses`;
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if (isMessagesModel(model)) return `${base}/zen/v1/messages`;
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return `${base}/zen/v1/chat/completions`;
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}
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buildHeaders(credentials, stream = true, url = "") {
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const raw = credentials?.rawHeaders || {};
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const lower = {};
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for (const [k, v] of Object.entries(raw)) lower[k.toLowerCase()] = v;
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const downstreamUa = lower["user-agent"] || "";
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const isOpencodeDownstream = hasValidOpencodeVersion(downstreamUa);
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const session = credentials?.[SESSION_FIELD] || this.prepareRequestCredentials({ credentials })[SESSION_FIELD];
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const downstreamReq = normalizeRequestId(lower["x-opencode-request"]);
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const requestId = credentials?.[REQ_FIELD] || downstreamReq || generateRequestId();
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const headers = {
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"Content-Type": "application/json",
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"Authorization": "Bearer public",
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"User-Agent": isOpencodeDownstream ? downstreamUa : OPENCODE_UA,
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"x-opencode-client": lower["x-opencode-client"] || "desktop",
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"x-opencode-session": session,
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"x-opencode-request": requestId,
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"x-opencode-project": lower["x-opencode-project"] || "global",
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"Accept": stream ? "text/event-stream" : "*/*",
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};
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if (url.endsWith("/messages")) headers["anthropic-version"] = ANTHROPIC_API_VERSION;
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return headers;
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}
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}
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