- new open-sse/utils/streamErrorPeek.js: bounded peek of the first bytes of a 200 stream; configured pattern match → 502 so account/combo fallback can run before any byte reaches the client (streaming included). Re-emits RAW bytes so split multi-byte UTF-8 sequences survive the peek (never re-encode decoded text — TextDecoder flush corrupts a lone leading byte to U+FFFD). - chatCore: run the peek after executor.execute when the provider has streamErrorPatterns configured; chat.js passes the settings through. - commandcode executor: same raw-bytes fix in peekForUpstreamError + regression test that fails against the old flush-based re-encode.
784 lines
24 KiB
JavaScript
784 lines
24 KiB
JavaScript
import {
|
|
detectFormat,
|
|
getTargetFormat,
|
|
resolveTransport,
|
|
} from "../services/provider.js";
|
|
import { translateRequest } from "../translator/index.js";
|
|
import { stripThinkingSuffix } from "../translator/concerns/thinkingUnified.js";
|
|
import { FORMATS } from "../translator/formats.js";
|
|
import { normalizeClaudePassthrough } from "../translator/formats/claude.js";
|
|
import { createStreamController } from "../utils/streamHandler.js";
|
|
import { refreshWithRetry } from "../services/tokenRefresh.js";
|
|
import { createRequestLogger } from "../utils/requestLogger.js";
|
|
import {
|
|
getModelTargetFormat,
|
|
getModelStrip,
|
|
getModelUpstreamId,
|
|
getModelType,
|
|
PROVIDER_ID_TO_ALIAS,
|
|
} from "../config/providerModels.js";
|
|
import { PROVIDERS } from "../config/providers.js";
|
|
import {
|
|
createErrorResult,
|
|
parseUpstreamError,
|
|
formatProviderError,
|
|
} from "../utils/error.js";
|
|
import { HTTP_STATUS, TOKEN_SAVER_HEADER } from "../config/runtimeConfig.js";
|
|
import { handleBypassRequest } from "../utils/bypassHandler.js";
|
|
import {
|
|
trackPendingRequest,
|
|
appendRequestLog,
|
|
saveRequestDetail,
|
|
} from "@/lib/usageDb.js";
|
|
import { getExecutor } from "../executors/index.js";
|
|
import { supportsGrokCliReasoningEffort } from "../config/grokCli.js";
|
|
import {
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|
buildRequestDetail,
|
|
extractRequestConfig,
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|
} from "./chatCore/requestDetail.js";
|
|
import { handleForcedSSEToJson } from "./chatCore/sseToJsonHandler.js";
|
|
import { handleNonStreamingResponse } from "./chatCore/nonStreamingHandler.js";
|
|
import {
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|
handleStreamingResponse,
|
|
buildOnStreamComplete,
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|
} from "./chatCore/streamingHandler.js";
|
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import { maybeRejectEarlyStreamError } from "../utils/streamErrorPeek.js";
|
|
import {
|
|
detectClientTool,
|
|
isNativePassthrough,
|
|
} from "../utils/clientDetector.js";
|
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import { dedupeTools } from "../utils/toolDeduper.js";
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|
import { injectCaveman } from "../rtk/caveman.js";
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|
import { injectPonytail } from "../rtk/ponytail.js";
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import { compressMessages, formatRtkLog } from "../rtk/index.js";
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import {
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compressWithHeadroom,
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formatHeadroomLog,
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formatHeadroomSizeLog,
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isHeadroomPhantomSavings,
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} from "../rtk/headroom.js";
|
|
import { compressWithPxpipe } from "../rtk/pxpipe.js";
|
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import { getCapabilitiesForModel } from "../providers/capabilities.js";
|
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import { stripUnsupportedModalities } from "../translator/concerns/modality.js";
|
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import { prefetchRemoteImages } from "../translator/concerns/prefetch.js";
|
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import { extractThinking } from "../translator/concerns/thinkingUnified.js";
|
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import { resolveSessionId } from "../utils/sessionManager.js";
|
|
|
|
/**
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* Core chat handler - shared between SSE and Worker
|
|
* @param {object} options.body - Request body
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* @param {object} options.modelInfo - { provider, model }
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|
* @param {object} options.credentials - Provider credentials
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* @param {string} options.sourceFormatOverride - Override detected source format (e.g. "openai-responses")
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|
*/
|
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export async function handleChatCore({
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body,
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modelInfo,
|
|
credentials,
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|
log,
|
|
onCredentialsRefreshed,
|
|
onRequestSuccess,
|
|
onDisconnect,
|
|
clientRawRequest,
|
|
connectionId,
|
|
userAgent,
|
|
apiKey,
|
|
ccFilterNaming,
|
|
rtkEnabled,
|
|
headroomEnabled,
|
|
headroomUrl,
|
|
headroomCompressUserMessages,
|
|
cavemanEnabled,
|
|
cavemanLevel,
|
|
ponytailEnabled,
|
|
ponytailLevel,
|
|
pxpipeEnabled,
|
|
pxpipeMinChars,
|
|
pxpipeTimeoutMs,
|
|
pxpipeTransform,
|
|
onPxpipeEvent,
|
|
sourceFormatOverride,
|
|
providerThinking,
|
|
streamErrorPatterns,
|
|
}) {
|
|
const { provider, model } = modelInfo;
|
|
const requestStartTime = Date.now();
|
|
// Stable per-session color so all lines of one CLI conversation share a tag
|
|
const sessionSeed = (() => {
|
|
try {
|
|
return resolveSessionId({
|
|
headers: clientRawRequest?.headers,
|
|
body,
|
|
connectionId,
|
|
scope: provider,
|
|
});
|
|
} catch {
|
|
return connectionId || "";
|
|
}
|
|
})();
|
|
const reqTag = log?.tagForSession
|
|
? log.tagForSession(sessionSeed)
|
|
: log?.nextTag
|
|
? log.nextTag()
|
|
: "";
|
|
|
|
const sourceFormat = sourceFormatOverride || detectFormat(body);
|
|
|
|
// Check for bypass patterns (warmup, skip, cc naming)
|
|
const bypassResponse = handleBypassRequest(
|
|
body,
|
|
model,
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|
userAgent,
|
|
ccFilterNaming,
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|
);
|
|
if (bypassResponse) return bypassResponse;
|
|
|
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const alias = PROVIDER_ID_TO_ALIAS[provider] || provider;
|
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const modelTargetFormat = getModelTargetFormat(alias, model);
|
|
// Multi-endpoint providers: pick transport matching sourceFormat → zero translation
|
|
const runtimeTransport = resolveTransport(provider, sourceFormat);
|
|
const targetFormat =
|
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modelTargetFormat || runtimeTransport?.format || getTargetFormat(provider);
|
|
if (runtimeTransport && credentials)
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|
credentials.runtimeTransport = runtimeTransport;
|
|
const stripList = getModelStrip(alias, model);
|
|
const upstreamModel = getModelUpstreamId(alias, model);
|
|
|
|
// Inject provider-level thinking config override (only if client hasn't set)
|
|
// on/off → extended type (body.thinking), none/low/medium/high → effort type (body.reasoning_effort)
|
|
if (providerThinking?.mode && providerThinking.mode !== "auto") {
|
|
const mode = providerThinking.mode;
|
|
if (mode === "on" && !body.thinking) {
|
|
console.log("Injecting provider-level thinking config override: on");
|
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body = { ...body, thinking: { type: "enabled", budget_tokens: 10000 } };
|
|
} else if (mode === "off" && !body.thinking) {
|
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body = { ...body, thinking: { type: "disabled" } };
|
|
} else if (!body.reasoning_effort) {
|
|
body = { ...body, reasoning_effort: mode };
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|
}
|
|
}
|
|
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|
const clientRequestedStreaming =
|
|
body.stream === true ||
|
|
sourceFormat === FORMATS.ANTIGRAVITY ||
|
|
sourceFormat === FORMATS.GEMINI ||
|
|
sourceFormat === FORMATS.GEMINI_CLI;
|
|
const providerRequiresStreaming = PROVIDERS[provider]?.forceStream === true;
|
|
let stream = providerRequiresStreaming ? true : body.stream !== false;
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|
|
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// Image generation models require non-streaming (Google v1internal:generateContent)
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const modelType = getModelType(alias, model);
|
|
const isImageGenModel =
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modelType === "imageGen" || /image|imagen|image-generation/i.test(model);
|
|
if (
|
|
isImageGenModel &&
|
|
(provider === "antigravity" || provider === "gemini-cli")
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|
) {
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stream = false;
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|
}
|
|
|
|
// DeepSeek-TUI: interactive TUI panel sends stream:true and needs SSE.
|
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// Non-interactive mode (-p flag) sends without stream and can't parse SSE.
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// Only force non-streaming when client didn't explicitly request it.
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const detectedTool = detectClientTool(clientRawRequest?.headers || {}, body);
|
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if (detectedTool === "deepseek-tui" && body.stream !== true) stream = false;
|
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|
|
// Check client Accept header preference for non-streaming requests
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|
// This fixes AI SDK compatibility where clients send Accept: application/json
|
|
const acceptHeader = clientRawRequest?.headers?.accept || "";
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const clientPrefersJson = acceptHeader.includes("application/json");
|
|
const clientPrefersSSE = acceptHeader.includes("text/event-stream");
|
|
if (
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|
clientPrefersJson &&
|
|
!clientPrefersSSE &&
|
|
body.stream !== true &&
|
|
!providerRequiresStreaming
|
|
) {
|
|
stream = false;
|
|
}
|
|
|
|
const reqLogger = await createRequestLogger(
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sourceFormat,
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|
targetFormat,
|
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model,
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);
|
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if (clientRawRequest)
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|
reqLogger.logClientRawRequest(
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|
clientRawRequest.endpoint,
|
|
clientRawRequest.body,
|
|
clientRawRequest.headers,
|
|
);
|
|
reqLogger.logRawRequest(body);
|
|
log?.debug?.(
|
|
"FORMAT",
|
|
`${sourceFormat} → ${targetFormat} | stream=${stream}`,
|
|
);
|
|
|
|
// Native passthrough: CLI tool and provider are the same ecosystem
|
|
// Skip all translation/normalization — only model and Bearer are swapped
|
|
const clientTool = detectClientTool(clientRawRequest?.headers || {}, body);
|
|
const passthrough = isNativePassthrough(clientTool, provider);
|
|
|
|
// Expose raw client headers to translators/executors for session-id resolution
|
|
if (credentials) credentials.rawHeaders = clientRawRequest?.headers || {};
|
|
|
|
// Auto-strip media blocks the model can't read (vision/audio/pdf) before translation.
|
|
if (!passthrough) {
|
|
const caps = getCapabilitiesForModel(provider, model);
|
|
if (stripUnsupportedModalities(body, sourceFormat, caps)) {
|
|
log?.debug?.(
|
|
"MODALITY",
|
|
`stripped unsupported media for ${provider}/${model}`,
|
|
);
|
|
}
|
|
// Convert remote image URLs to base64 for targets that can't fetch URLs.
|
|
try {
|
|
const n = await prefetchRemoteImages(body, sourceFormat, targetFormat, {
|
|
signal: undefined,
|
|
});
|
|
if (n > 0)
|
|
log?.debug?.(
|
|
"MODALITY",
|
|
`prefetched ${n} remote image(s) for ${targetFormat}`,
|
|
);
|
|
} catch (e) {
|
|
log?.warn?.("MODALITY", `image prefetch failed: ${e.message}`);
|
|
}
|
|
}
|
|
|
|
let translatedBody;
|
|
let toolNameMap;
|
|
if (passthrough) {
|
|
log?.debug?.(
|
|
"PASSTHROUGH",
|
|
`${clientTool} → ${provider} | native lossless`,
|
|
);
|
|
translatedBody = { ...body, model: stripThinkingSuffix(upstreamModel) };
|
|
// Normalize newer Cowork/CC beta shapes (adaptive thinking, mid-conversation system) the API rejects
|
|
if (clientTool === "claude")
|
|
normalizeClaudePassthrough(translatedBody, translatedBody.model);
|
|
} else {
|
|
translatedBody = translateRequest(
|
|
sourceFormat,
|
|
targetFormat,
|
|
upstreamModel,
|
|
body,
|
|
stream,
|
|
credentials,
|
|
provider,
|
|
reqLogger,
|
|
stripList,
|
|
connectionId,
|
|
clientTool,
|
|
);
|
|
if (!translatedBody) {
|
|
trackPendingRequest(model, provider, connectionId, false, true);
|
|
return createErrorResult(
|
|
HTTP_STATUS.BAD_REQUEST,
|
|
`Failed to translate request for ${sourceFormat} → ${targetFormat}`,
|
|
);
|
|
}
|
|
toolNameMap = translatedBody._toolNameMap;
|
|
delete translatedBody._toolNameMap;
|
|
translatedBody.model = stripThinkingSuffix(upstreamModel);
|
|
}
|
|
|
|
// Dedupe duplicate built-in tools when equivalent MCP tools are present (Claude clients only).
|
|
if (clientTool === "claude" && Array.isArray(translatedBody.tools)) {
|
|
const { tools: deduped, stripped } = dedupeTools(translatedBody.tools);
|
|
if (stripped.length > 0) {
|
|
translatedBody.tools = deduped;
|
|
log?.debug?.(
|
|
"TOOLDEDUP",
|
|
`stripped ${stripped.length}: ${stripped.slice(0, 3).join(", ")}${stripped.length > 3 ? "..." : ""}`,
|
|
);
|
|
}
|
|
}
|
|
|
|
// Token savers: applied at the final body just before dispatch
|
|
// Covers both passthrough (source shape) and translated (target shape) flows
|
|
const finalFormat = passthrough ? sourceFormat : targetFormat;
|
|
|
|
// Request line: one correlated summary (fmt + thinking + counts + account)
|
|
if (log?.line) {
|
|
const clientModel = clientRawRequest?.body?.model || `${provider}/${model}`;
|
|
const msgN =
|
|
translatedBody.messages?.length ||
|
|
translatedBody.input?.length ||
|
|
translatedBody.contents?.length ||
|
|
body.messages?.length ||
|
|
body.input?.length ||
|
|
0;
|
|
const toolN = translatedBody.tools?.length || body.tools?.length || 0;
|
|
const fmtStr = passthrough
|
|
? `FMT: ${sourceFormat} (passthrough)`
|
|
: `FMT: ${sourceFormat}→${targetFormat}`;
|
|
const showThinking =
|
|
provider !== "grok-cli" || supportsGrokCliReasoningEffort(model);
|
|
const think = showThinking
|
|
? log.fmtThink?.(extractThinking(translatedBody))
|
|
: null;
|
|
const acc =
|
|
credentials?.connectionName ||
|
|
credentials?.connectionId?.slice(0, 8) ||
|
|
"-";
|
|
const parts = [
|
|
`POST ${clientModel} → ${provider}/${model}`,
|
|
fmtStr,
|
|
stream ? "STREAM" : "JSON",
|
|
`${msgN} MSG`,
|
|
];
|
|
if (toolN) parts.push(`${toolN} TOOL`);
|
|
if (think) parts.push(`THINK:${think}`);
|
|
parts.push(`ACC:${acc}`);
|
|
log.line(reqTag, "▶", parts.join(" · "));
|
|
}
|
|
|
|
// TTS models don't support tool messages/function calling
|
|
if (getModelType(alias, model) === "tts" && translatedBody.messages) {
|
|
translatedBody.messages = translatedBody.messages.filter(
|
|
(msg) => msg.role !== "tool",
|
|
);
|
|
delete translatedBody.tools;
|
|
}
|
|
|
|
// Per-request opt-out: client can bypass all token savers via header
|
|
const tokenSaverEnabled =
|
|
clientRawRequest?.headers?.[TOKEN_SAVER_HEADER]?.toLowerCase() !== "off";
|
|
|
|
// RTK: compress tool_result content
|
|
const rtkStats = compressMessages(
|
|
translatedBody,
|
|
tokenSaverEnabled && rtkEnabled,
|
|
);
|
|
const rtkLine = formatRtkLog(rtkStats);
|
|
if (rtkLine) console.log(rtkLine);
|
|
|
|
// Headroom: optional external proxy compression; fail open if proxy is absent.
|
|
const headroomDiagnostics = {};
|
|
const headroomStats = await compressWithHeadroom(translatedBody, {
|
|
enabled: tokenSaverEnabled && headroomEnabled,
|
|
url: headroomUrl,
|
|
model: upstreamModel,
|
|
format: finalFormat,
|
|
compressUserMessages: headroomCompressUserMessages,
|
|
diagnostics: headroomDiagnostics,
|
|
});
|
|
const headroomLine = formatHeadroomLog(headroomStats);
|
|
const headroomSizeLine = formatHeadroomSizeLog(headroomDiagnostics);
|
|
if (headroomLine) {
|
|
log?.info?.(
|
|
"HEADROOM",
|
|
`${headroomLine}${headroomSizeLine ? ` | ${headroomSizeLine}` : ""}`,
|
|
);
|
|
if (isHeadroomPhantomSavings(headroomStats, headroomDiagnostics)) {
|
|
log?.warn?.(
|
|
"HEADROOM",
|
|
`reported token delta, but outbound JSON shrank <5%; provider may bill near-original payload | ${formatHeadroomSizeLog(headroomDiagnostics)}`,
|
|
);
|
|
}
|
|
} else if (tokenSaverEnabled && headroomEnabled)
|
|
log?.warn?.(
|
|
"HEADROOM",
|
|
`skipped: ${headroomDiagnostics.reason || "compression unavailable"}${headroomDiagnostics.endpoint ? ` (${headroomDiagnostics.endpoint})` : ""}`,
|
|
);
|
|
|
|
// Token-saver flags accumulator for the single "⚙" log line below.
|
|
const xf = [];
|
|
|
|
// Caveman: inject terse-style system prompt
|
|
if (tokenSaverEnabled && cavemanEnabled && cavemanLevel) {
|
|
injectCaveman(translatedBody, finalFormat, cavemanLevel);
|
|
xf.push(`CAVEMAN:${cavemanLevel}`);
|
|
}
|
|
|
|
// Ponytail: inject lazy-senior-dev system prompt
|
|
if (tokenSaverEnabled && ponytailEnabled && ponytailLevel) {
|
|
injectPonytail(translatedBody, finalFormat, ponytailLevel);
|
|
xf.push(`PONYTAIL:${ponytailLevel}`);
|
|
}
|
|
|
|
// PXPIPE: image bulky context (Claude-format bodies only), last saver before dispatch
|
|
let pxpipeSummary = null;
|
|
if (pxpipeEnabled) {
|
|
const pxpipeResult = await compressWithPxpipe(translatedBody, {
|
|
enabled: true,
|
|
format: finalFormat,
|
|
model: upstreamModel,
|
|
minChars: pxpipeMinChars,
|
|
timeoutMs: pxpipeTimeoutMs,
|
|
transform: pxpipeTransform,
|
|
});
|
|
pxpipeSummary = pxpipeResult.summary;
|
|
if (pxpipeResult.body) translatedBody = pxpipeResult.body;
|
|
if (pxpipeSummary?.applied)
|
|
xf.push(`PXPIPE:${pxpipeSummary.imageCount}img`);
|
|
try {
|
|
onPxpipeEvent?.({ provider, model, ...pxpipeSummary });
|
|
} catch {
|
|
/* stats must not break requests */
|
|
}
|
|
}
|
|
|
|
if (xf.length && log?.line) log.line(reqTag, "⚙", xf.join(" · "));
|
|
|
|
const executor = getExecutor(provider);
|
|
trackPendingRequest(model, provider, connectionId, true);
|
|
appendRequestLog({ model, provider, connectionId, status: "PENDING" }).catch(
|
|
() => {},
|
|
);
|
|
|
|
const msgCount =
|
|
translatedBody.messages?.length ||
|
|
translatedBody.input?.length ||
|
|
translatedBody.contents?.length ||
|
|
translatedBody.request?.contents?.length ||
|
|
0;
|
|
log?.debug?.(
|
|
"REQUEST",
|
|
`${provider.toUpperCase()} | ${model} | ${msgCount} msgs`,
|
|
);
|
|
|
|
const streamController = createStreamController({
|
|
onDisconnect: (reason) => {
|
|
trackPendingRequest(model, provider, connectionId, false);
|
|
if (onDisconnect) onDisconnect(reason);
|
|
},
|
|
onError: () => trackPendingRequest(model, provider, connectionId, false),
|
|
log,
|
|
provider,
|
|
model,
|
|
reqTag,
|
|
});
|
|
|
|
const proxyOptions = {
|
|
connectionProxyEnabled:
|
|
credentials?.providerSpecificData?.connectionProxyEnabled === true,
|
|
connectionProxyUrl:
|
|
credentials?.providerSpecificData?.connectionProxyUrl || "",
|
|
connectionNoProxy:
|
|
credentials?.providerSpecificData?.connectionNoProxy || "",
|
|
vercelRelayUrl: credentials?.providerSpecificData?.vercelRelayUrl || "",
|
|
};
|
|
|
|
if (proxyOptions.vercelRelayUrl) {
|
|
const connectionName =
|
|
credentials?.connectionName || credentials?.connectionId || "unknown";
|
|
const poolId =
|
|
credentials?.providerSpecificData?.connectionProxyPoolId || "none";
|
|
log?.info?.(
|
|
"PROXY",
|
|
`${provider.toUpperCase()} | ${model} | conn=${connectionName} | pool=${poolId} | vercel-relay=${proxyOptions.vercelRelayUrl}`,
|
|
);
|
|
} else if (
|
|
proxyOptions.connectionProxyEnabled &&
|
|
proxyOptions.connectionProxyUrl
|
|
) {
|
|
let maskedProxyUrl = proxyOptions.connectionProxyUrl;
|
|
try {
|
|
const parsed = new URL(proxyOptions.connectionProxyUrl);
|
|
const host = parsed.hostname || "";
|
|
const port = parsed.port ? `:${parsed.port}` : "";
|
|
const protocol = parsed.protocol || "http:";
|
|
maskedProxyUrl = `${protocol}//${host}${port}`;
|
|
} catch {
|
|
// Keep raw if URL parsing fails
|
|
}
|
|
|
|
const poolId =
|
|
credentials?.providerSpecificData?.connectionProxyPoolId || "none";
|
|
const connectionName =
|
|
credentials?.connectionName || credentials?.connectionId || "unknown";
|
|
log?.info?.(
|
|
"PROXY",
|
|
`${provider.toUpperCase()} | ${model} | conn=${connectionName} | pool=${poolId} | url=${maskedProxyUrl}`,
|
|
);
|
|
}
|
|
|
|
if (proxyOptions.connectionProxyEnabled && proxyOptions.connectionNoProxy) {
|
|
const connectionName =
|
|
credentials?.connectionName || credentials?.connectionId || "unknown";
|
|
log?.debug?.(
|
|
"PROXY",
|
|
`${provider.toUpperCase()} | ${model} | conn=${connectionName} | no_proxy=${proxyOptions.connectionNoProxy}`,
|
|
);
|
|
}
|
|
|
|
// Execute request
|
|
let providerResponse, providerUrl, providerHeaders, finalBody;
|
|
// Most executors return their registry format. Cursor AgentService is an
|
|
// exception: it is decoded by the executor into OpenAI-compatible output.
|
|
let providerResponseFormat = targetFormat;
|
|
try {
|
|
const result = await executor.execute({
|
|
model,
|
|
body: translatedBody,
|
|
stream,
|
|
credentials,
|
|
signal: streamController.signal,
|
|
log,
|
|
proxyOptions,
|
|
});
|
|
providerResponse = result.response;
|
|
providerUrl = result.url;
|
|
providerHeaders = result.headers;
|
|
finalBody = result.transformedBody;
|
|
providerResponseFormat = result.responseFormat || targetFormat;
|
|
reqLogger.logTargetRequest(providerUrl, providerHeaders, finalBody);
|
|
} catch (error) {
|
|
trackPendingRequest(model, provider, connectionId, false, true);
|
|
appendRequestLog({
|
|
model,
|
|
provider,
|
|
connectionId,
|
|
status: `FAILED ${error.name === "AbortError" ? 499 : HTTP_STATUS.BAD_GATEWAY}`,
|
|
}).catch(() => {});
|
|
saveRequestDetail(
|
|
buildRequestDetail({
|
|
provider,
|
|
model,
|
|
connectionId,
|
|
latency: { ttft: 0, total: Date.now() - requestStartTime },
|
|
tokens: { prompt_tokens: 0, completion_tokens: 0 },
|
|
request: extractRequestConfig(body, stream),
|
|
providerRequest: translatedBody || null,
|
|
response: {
|
|
error: error.message || String(error),
|
|
status: error.name === "AbortError" ? 499 : 502,
|
|
thinking: null,
|
|
},
|
|
pxpipe: pxpipeSummary,
|
|
status: "error",
|
|
}),
|
|
).catch(() => {});
|
|
|
|
if (error.name === "AbortError") {
|
|
streamController.handleError(error);
|
|
return createErrorResult(499, "Request aborted");
|
|
}
|
|
const errMsg = formatProviderError(
|
|
error,
|
|
provider,
|
|
model,
|
|
HTTP_STATUS.BAD_GATEWAY,
|
|
);
|
|
if (log?.errorLine) {
|
|
log.errorLine(
|
|
reqTag,
|
|
"✗",
|
|
`ERROR 502 · ${provider}/${model} · ${Date.now() - requestStartTime}ms\n ${errMsg}${error.stack ? `\n ${error.stack}` : ""}`,
|
|
);
|
|
}
|
|
return createErrorResult(HTTP_STATUS.BAD_GATEWAY, errMsg);
|
|
}
|
|
|
|
// Config-driven in-stream error detection: peek the first bytes of a 200
|
|
// stream; if a configured pattern matches, fail fast with 502 so account
|
|
// /combo fallback can still run before any byte reaches the client.
|
|
const configuredPatterns = streamErrorPatterns?.[provider];
|
|
if (
|
|
providerResponse?.ok &&
|
|
Array.isArray(configuredPatterns) &&
|
|
configuredPatterns.length > 0
|
|
) {
|
|
providerResponse = await maybeRejectEarlyStreamError(
|
|
providerResponse,
|
|
configuredPatterns,
|
|
{ signal: streamController.signal },
|
|
);
|
|
}
|
|
|
|
// Handle 401/403 - try token refresh (skip for noAuth providers)
|
|
if (
|
|
!executor.noAuth &&
|
|
(providerResponse.status === HTTP_STATUS.UNAUTHORIZED ||
|
|
providerResponse.status === HTTP_STATUS.FORBIDDEN)
|
|
) {
|
|
try {
|
|
// Mutate credentials after each successful refresh: rotating refresh_token
|
|
// providers (xAI/grok-cli) issue a new RT on every refresh; without this,
|
|
// refreshWithRetry's 2nd/3rd attempt reuses the already-consumed RT →
|
|
// invalid_grant → auth_failed retryable=false.
|
|
const newCredentials = await refreshWithRetry(
|
|
async () => {
|
|
const result = await executor.refreshCredentials(credentials, log);
|
|
if (
|
|
result?.refreshToken &&
|
|
result.refreshToken !== credentials.refreshToken
|
|
) {
|
|
if (result.accessToken)
|
|
credentials.accessToken = result.accessToken;
|
|
credentials.refreshToken = result.refreshToken;
|
|
}
|
|
return result;
|
|
},
|
|
3,
|
|
log,
|
|
);
|
|
if (newCredentials?.accessToken || newCredentials?.copilotToken) {
|
|
if (log?.line)
|
|
log.line(reqTag, "🔑", `TOKEN REFRESHED · ${provider}/${model}`);
|
|
Object.assign(credentials, newCredentials);
|
|
if (onCredentialsRefreshed) {
|
|
try {
|
|
await onCredentialsRefreshed(newCredentials);
|
|
} catch (e) {
|
|
log?.warn?.("TOKEN", `onCredentialsRefreshed failed: ${e.message}`);
|
|
}
|
|
}
|
|
try {
|
|
const retryResult = await executor.execute({
|
|
model,
|
|
body: translatedBody,
|
|
stream,
|
|
credentials,
|
|
signal: streamController.signal,
|
|
log,
|
|
proxyOptions,
|
|
});
|
|
if (retryResult.response.ok) {
|
|
providerResponse = retryResult.response;
|
|
providerUrl = retryResult.url;
|
|
providerResponseFormat = retryResult.responseFormat || targetFormat;
|
|
}
|
|
} catch {
|
|
log?.warn?.(
|
|
"TOKEN",
|
|
`${provider.toUpperCase()} | retry after refresh failed`,
|
|
);
|
|
}
|
|
} else {
|
|
log?.warn?.("TOKEN", `${provider.toUpperCase()} | refresh failed`);
|
|
}
|
|
} catch (e) {
|
|
log?.warn?.(
|
|
"TOKEN",
|
|
`${provider.toUpperCase()} | refresh threw: ${e.message}`,
|
|
);
|
|
}
|
|
}
|
|
|
|
// Provider returned error
|
|
if (!providerResponse.ok) {
|
|
trackPendingRequest(model, provider, connectionId, false, true);
|
|
const { statusCode, message, resetsAtMs } = await parseUpstreamError(
|
|
providerResponse,
|
|
executor,
|
|
);
|
|
appendRequestLog({
|
|
model,
|
|
provider,
|
|
connectionId,
|
|
status: `FAILED ${statusCode}`,
|
|
}).catch(() => {});
|
|
saveRequestDetail(
|
|
buildRequestDetail({
|
|
provider,
|
|
model,
|
|
connectionId,
|
|
latency: { ttft: 0, total: Date.now() - requestStartTime },
|
|
tokens: { prompt_tokens: 0, completion_tokens: 0 },
|
|
request: extractRequestConfig(body, stream),
|
|
providerRequest: finalBody || translatedBody || null,
|
|
response: { error: message, status: statusCode, thinking: null },
|
|
pxpipe: pxpipeSummary,
|
|
status: "error",
|
|
}),
|
|
).catch(() => {});
|
|
|
|
const errMsg = formatProviderError(
|
|
new Error(message),
|
|
provider,
|
|
model,
|
|
statusCode,
|
|
);
|
|
if (log?.errorLine) {
|
|
const urlStr = providerUrl ? `\n URL: ${providerUrl}` : "";
|
|
log.errorLine(
|
|
reqTag,
|
|
"✗",
|
|
`ERROR ${statusCode} · ${provider}/${model} · ${Date.now() - requestStartTime}ms${urlStr}\n ${errMsg}`,
|
|
);
|
|
}
|
|
reqLogger.logError(new Error(message), finalBody || translatedBody);
|
|
return createErrorResult(statusCode, errMsg, resetsAtMs);
|
|
}
|
|
|
|
const sharedCtx = {
|
|
provider,
|
|
model,
|
|
body,
|
|
stream,
|
|
translatedBody,
|
|
finalBody,
|
|
requestStartTime,
|
|
connectionId,
|
|
apiKey,
|
|
clientRawRequest,
|
|
onRequestSuccess,
|
|
pxpipe: pxpipeSummary,
|
|
reqTag,
|
|
log,
|
|
streamErrorPatterns,
|
|
};
|
|
const appendLog = (extra) =>
|
|
appendRequestLog({ model, provider, connectionId, ...extra }).catch(
|
|
() => {},
|
|
);
|
|
const trackDone = () =>
|
|
trackPendingRequest(model, provider, connectionId, false);
|
|
|
|
// Provider forced streaming but client wants JSON
|
|
if (!clientRequestedStreaming && providerRequiresStreaming) {
|
|
const result = await handleForcedSSEToJson({
|
|
...sharedCtx,
|
|
providerResponse,
|
|
sourceFormat,
|
|
trackDone,
|
|
appendLog,
|
|
});
|
|
if (result) {
|
|
streamController.handleComplete();
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// True non-streaming response
|
|
if (!stream) {
|
|
const result = await handleNonStreamingResponse({
|
|
...sharedCtx,
|
|
providerResponse,
|
|
sourceFormat,
|
|
targetFormat: providerResponseFormat,
|
|
reqLogger,
|
|
toolNameMap,
|
|
trackDone,
|
|
appendLog,
|
|
});
|
|
streamController.handleComplete();
|
|
return result;
|
|
}
|
|
|
|
// Streaming response
|
|
const { onStreamComplete, streamDetailId } = buildOnStreamComplete({
|
|
...sharedCtx,
|
|
});
|
|
return handleStreamingResponse({
|
|
...sharedCtx,
|
|
providerResponse,
|
|
sourceFormat,
|
|
targetFormat: providerResponseFormat,
|
|
userAgent,
|
|
reqLogger,
|
|
toolNameMap,
|
|
streamController,
|
|
onStreamComplete,
|
|
streamDetailId,
|
|
});
|
|
}
|
|
|
|
export function isTokenExpiringSoon(expiresAt, bufferMs = 5 * 60 * 1000) {
|
|
if (!expiresAt) return false;
|
|
return new Date(expiresAt).getTime() - Date.now() < bufferMs;
|
|
}
|