fix: parse escaped retryable error messages

gateway.mjs

@@ -169,6 +169,13 @@ function normalizePath(inputPath) {
   return trimmed || "/";
 }
 
+function expandEscapedLineBreaks(value) {
+  return `${value ?? ""}`
+    .replace(/\\r\\n/g, "\n")
+    .replace(/\\n/g, "\n")
+    .replace(/\\r/g, "\n");
+}
+
 function flattenValues(value) {
   if (Array.isArray(value)) {
     return value.flatMap((item) => flattenValues(item));
@@ -503,7 +510,7 @@ function normalizePhraseList(values, fallback = []) {
   const normalized = flattenValues(source)
     .flatMap((value) => {
       if (typeof value === "string") {
-        return value.split(/\r?\n/);
+        return expandEscapedLineBreaks(value).split(/\r?\n/);
       }
       return [value];
     })

scripts/admin-lib.mjs

@@ -16,6 +16,13 @@ export const DEFAULT_HEALTH_PATH = "/__codex_retry_gateway/health";
 export const DEFAULT_REASONING_MATCH_MODE = "formula_518n_minus_2";
 export const DEFAULT_REASONING_EQUALS = [516, 1034, 1552];
 
+export function expandEscapedLineBreaks(value) {
+  return `${value ?? ""}`
+    .replace(/\\r\\n/g, "\n")
+    .replace(/\\n/g, "\n")
+    .replace(/\\r/g, "\n");
+}
+
 function escapeRegExp(value) {
   return `${value}`.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
 }
@@ -204,7 +211,7 @@ export function normalizePhraseArray(values, fallback = []) {
   const source = values === undefined || values === null ? fallback : values;
   const queue = Array.isArray(source) ? source.flat(Infinity) : [source];
   const normalized = queue
-    .flatMap((value) => (typeof value === "string" ? value.split(/\r?\n/) : [value]))
+    .flatMap((value) => (typeof value === "string" ? expandEscapedLineBreaks(value).split(/\r?\n/) : [value]))
     .map((value) => `${value ?? ""}`.trim())
     .filter(Boolean);
 

scripts/run-profile.mjs

@@ -15,6 +15,7 @@ import {
   DEFAULT_REASONING_MATCH_MODE,
   DEFAULT_STATE_ROOT,
   ensureDirectory,
+  expandEscapedLineBreaks,
   getCodexProviderContext,
   getGatewayBaseUrl,
   getGatewayStatePaths,
@@ -47,13 +48,16 @@ function parseEnvFile(content) {
     }
     const key = line.slice(0, separatorIndex).trim();
     let value = line.slice(separatorIndex + 1).trim();
-    if (
-      (value.startsWith('"') && value.endsWith('"')) ||
-      (value.startsWith("'") && value.endsWith("'"))
-    ) {
+    if (value.startsWith('"') && value.endsWith('"')) {
+      try {
+        value = JSON.parse(value);
+      } catch {
         value = value.slice(1, -1);
       }
-    parsed[key] = value;
+    } else if (value.startsWith("'") && value.endsWith("'")) {
+      value = value.slice(1, -1);
+    }
+    parsed[key] = typeof value === "string" ? expandEscapedLineBreaks(value) : value;
   }
   return parsed;
 }

scripts/test-gateway-e2e.mjs

@@ -8,6 +8,8 @@ import { mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
 import os from "node:os";
 import path from "node:path";
 
+import { normalizePhraseArray } from "./admin-lib.mjs";
+
 const gatewayRoot = path.resolve(import.meta.dirname, "..");
 const gatewayEntry = path.join(gatewayRoot, "gateway.mjs");
 
@@ -464,6 +466,11 @@ async function readSseUntilClose(url, requestBody) {
 }
 
 async function run() {
+  assert(
+    JSON.stringify(normalizePhraseArray("a\\nb", [])) === JSON.stringify(["a", "b"]),
+    "normalizePhraseArray 未拆分字面量换行",
+  );
+
   const tempRoot = await mkdtemp(path.join(os.tmpdir(), "codex-retry-gateway-"));
   const upstreamPort = await getFreePort();
   const gatewayPort = await getFreePort();
@@ -1103,6 +1110,30 @@ async function run() {
     assert(metricsAfterRestart?.metrics?.total_proxy_request_count >= metricsBeforeRestart?.metrics?.total_proxy_request_count, "重启后 total_proxy_request_count 未保留");
     assert(metricsAfterRestart?.metrics?.persistent_since, "重启后未返回 persistent_since");
 
+    config.retryable_error_messages = [
+      "Selected model is at capacity. Please try a different model.\\nstream disconnected before completion: Concurrency limit exceeded for account, please retry later",
+    ];
+    await writeFile(configPath, JSON.stringify(config, null, 2), "utf8");
+    gateway.child.kill();
+    await once(gateway.child, "exit");
+    gateway = startGateway(configPath, logPath);
+    await waitForHealth(`http://127.0.0.1:${gatewayPort}${config.health_path}`);
+
+    const escapedNewlineCapacityResponse = await fetch(`http://127.0.0.1:${gatewayPort}/responses`, {
+      method: "POST",
+      headers: { "content-type": "application/json" },
+      body: JSON.stringify({ test_capacity_before_success_times: 2, test_capacity_status: 200, test_reasoning_tokens: 128 }),
+    });
+    const escapedNewlineCapacityBody = await escapedNewlineCapacityResponse.json();
+    assert(
+      escapedNewlineCapacityResponse.status === 200,
+      `字面量换行 retryable_error_messages 下 200+capacity 未自动恢复: ${escapedNewlineCapacityResponse.status}`,
+    );
+    assert(
+      escapedNewlineCapacityBody?.usage?.output_tokens_details?.reasoning_tokens === 128,
+      "字面量换行 retryable_error_messages 恢复后的返回体异常",
+    );
+
     await new Promise((resolve) => setTimeout(resolve, 120));
     const logText = await readFile(logPath, "utf8");
     assert(