mirror of
https://github.com/decolua/9router.git
synced 2026-05-08 12:01:28 +00:00
512 lines
18 KiB
JavaScript
512 lines
18 KiB
JavaScript
import crypto from "crypto";
|
|
import { BaseExecutor } from "./base.js";
|
|
import { PROVIDERS } from "../config/providers.js";
|
|
import { OAUTH_ENDPOINTS, ANTIGRAVITY_HEADERS, INTERNAL_REQUEST_HEADER, AG_DEFAULT_TOOLS, AG_TOOL_SUFFIX } from "../config/appConstants.js";
|
|
import { HTTP_STATUS } from "../config/runtimeConfig.js";
|
|
import { deriveSessionId } from "../utils/sessionManager.js";
|
|
import { proxyAwareFetch } from "../utils/proxyFetch.js";
|
|
import { cleanJSONSchemaForAntigravity } from "../translator/helpers/geminiHelper.js";
|
|
|
|
// Sanitize function name: Gemini requires [a-zA-Z_][a-zA-Z0-9_.:\-]{0,63}
|
|
function sanitizeFunctionName(name) {
|
|
if (!name) return "_unknown";
|
|
let s = name.replace(/[^a-zA-Z0-9_.:\-]/g, "_");
|
|
if (!/^[a-zA-Z_]/.test(s)) s = "_" + s;
|
|
return s.substring(0, 64);
|
|
}
|
|
|
|
const MAX_RETRY_AFTER_MS = 10000;
|
|
const MAX_ANTIGRAVITY_OUTPUT_TOKENS = 16384;
|
|
|
|
export class AntigravityExecutor extends BaseExecutor {
|
|
constructor() {
|
|
super("antigravity", PROVIDERS.antigravity);
|
|
}
|
|
|
|
buildUrl(model, stream, urlIndex = 0) {
|
|
const baseUrls = this.getBaseUrls();
|
|
const baseUrl = baseUrls[urlIndex] || baseUrls[0];
|
|
const action = stream ? "streamGenerateContent?alt=sse" : "generateContent";
|
|
return `${baseUrl}/v1internal:${action}`;
|
|
}
|
|
|
|
buildHeaders(credentials, stream = true, sessionId = null) {
|
|
return {
|
|
"Content-Type": "application/json",
|
|
"Authorization": `Bearer ${credentials.accessToken}`,
|
|
"User-Agent": this.config.headers?.["User-Agent"] || ANTIGRAVITY_HEADERS["User-Agent"],
|
|
[INTERNAL_REQUEST_HEADER.name]: INTERNAL_REQUEST_HEADER.value,
|
|
...(sessionId && { "X-Machine-Session-Id": sessionId }),
|
|
"Accept": stream ? "text/event-stream" : "application/json"
|
|
};
|
|
}
|
|
|
|
transformRequest(model, body, stream, credentials) {
|
|
const projectId = credentials?.projectId || this.generateProjectId();
|
|
|
|
// Fix contents for Claude models via Antigravity
|
|
const contents = body.request?.contents?.map(c => {
|
|
let role = c.role;
|
|
// functionResponse must be role "user" for Claude models
|
|
if (c.parts?.some(p => p.functionResponse)) {
|
|
role = "user";
|
|
}
|
|
// Strip thought-only parts, keep thoughtSignature on functionCall parts (Gemini 3+ requires it)
|
|
const parts = c.parts?.filter(p => {
|
|
if (p.thought && !p.functionCall) return false;
|
|
if (p.thoughtSignature && !p.functionCall && !p.text) return false;
|
|
return true;
|
|
});
|
|
if (role !== c.role || parts?.length !== c.parts?.length) {
|
|
return { ...c, role, parts };
|
|
}
|
|
return c;
|
|
});
|
|
|
|
// Sanitize tool schemas and function names before sending to Antigravity.
|
|
let tools = body.request?.tools;
|
|
|
|
if (tools && tools.length > 0) {
|
|
tools = tools
|
|
.map(group => {
|
|
if (!group.functionDeclarations) return group;
|
|
const cleanedDeclarations = group.functionDeclarations.map(fn => ({
|
|
...fn,
|
|
name: sanitizeFunctionName(fn.name),
|
|
parameters: fn.parameters
|
|
? cleanJSONSchemaForAntigravity(structuredClone(fn.parameters))
|
|
: { type: "object", properties: { reason: { type: "string", description: "Brief explanation" } }, required: ["reason"] }
|
|
}));
|
|
|
|
return {
|
|
...group,
|
|
functionDeclarations: cleanedDeclarations
|
|
};
|
|
})
|
|
.filter(group => group.functionDeclarations?.length > 0)
|
|
.slice(0, 1);
|
|
}
|
|
|
|
const { tools: _originalTools, toolConfig: _originalToolConfig, ...requestWithoutTools } = body.request || {};
|
|
const generationConfig = { ...(requestWithoutTools.generationConfig || {}) };
|
|
if (generationConfig.maxOutputTokens > MAX_ANTIGRAVITY_OUTPUT_TOKENS) {
|
|
generationConfig.maxOutputTokens = MAX_ANTIGRAVITY_OUTPUT_TOKENS;
|
|
}
|
|
|
|
const transformedRequest = {
|
|
...requestWithoutTools,
|
|
generationConfig,
|
|
...(contents && { contents }),
|
|
...(tools && { tools }),
|
|
sessionId: body.request?.sessionId || deriveSessionId(credentials?.email || credentials?.connectionId),
|
|
safetySettings: undefined,
|
|
...(tools?.length > 0 && { toolConfig: { functionCallingConfig: { mode: "VALIDATED" } } })
|
|
};
|
|
|
|
return {
|
|
...body,
|
|
project: projectId,
|
|
model: model,
|
|
userAgent: "antigravity",
|
|
requestType: "agent",
|
|
requestId: `agent-${crypto.randomUUID()}`,
|
|
request: transformedRequest
|
|
};
|
|
}
|
|
|
|
async refreshCredentials(credentials, log) {
|
|
if (!credentials.refreshToken) return null;
|
|
|
|
try {
|
|
const response = await fetch(OAUTH_ENDPOINTS.google.token, {
|
|
method: "POST",
|
|
headers: { "Content-Type": "application/x-www-form-urlencoded", "Accept": "application/json" },
|
|
body: new URLSearchParams({
|
|
grant_type: "refresh_token",
|
|
refresh_token: credentials.refreshToken,
|
|
client_id: this.config.clientId,
|
|
client_secret: this.config.clientSecret
|
|
})
|
|
});
|
|
|
|
if (!response.ok) return null;
|
|
|
|
const tokens = await response.json();
|
|
log?.info?.("TOKEN", "Antigravity refreshed");
|
|
|
|
return {
|
|
accessToken: tokens.access_token,
|
|
refreshToken: tokens.refresh_token || credentials.refreshToken,
|
|
expiresIn: tokens.expires_in,
|
|
projectId: credentials.projectId
|
|
};
|
|
} catch (error) {
|
|
log?.error?.("TOKEN", `Antigravity refresh error: ${error.message}`);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
generateProjectId() {
|
|
const adj = ["useful", "bright", "swift", "calm", "bold"][Math.floor(Math.random() * 5)];
|
|
const noun = ["fuze", "wave", "spark", "flow", "core"][Math.floor(Math.random() * 5)];
|
|
return `${adj}-${noun}-${crypto.randomUUID().slice(0, 5)}`;
|
|
}
|
|
|
|
generateSessionId() {
|
|
return crypto.randomUUID() + Date.now().toString();
|
|
}
|
|
|
|
parseRetryHeaders(headers) {
|
|
if (!headers?.get) return null;
|
|
|
|
const retryAfter = headers.get('retry-after');
|
|
if (retryAfter) {
|
|
const seconds = parseInt(retryAfter, 10);
|
|
if (!isNaN(seconds) && seconds > 0) return seconds * 1000;
|
|
|
|
const date = new Date(retryAfter);
|
|
if (!isNaN(date.getTime())) {
|
|
const diff = date.getTime() - Date.now();
|
|
return diff > 0 ? diff : null;
|
|
}
|
|
}
|
|
|
|
const resetAfter = headers.get('x-ratelimit-reset-after');
|
|
if (resetAfter) {
|
|
const seconds = parseInt(resetAfter, 10);
|
|
if (!isNaN(seconds) && seconds > 0) return seconds * 1000;
|
|
}
|
|
|
|
const resetTimestamp = headers.get('x-ratelimit-reset');
|
|
if (resetTimestamp) {
|
|
const ts = parseInt(resetTimestamp, 10) * 1000;
|
|
const diff = ts - Date.now();
|
|
return diff > 0 ? diff : null;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
// Parse retry time from Antigravity error message body
|
|
// Format: "Your quota will reset after 2h7m23s" or "1h30m" or "45m" or "30s"
|
|
parseRetryFromErrorMessage(errorMessage) {
|
|
if (!errorMessage || typeof errorMessage !== "string") return null;
|
|
|
|
const match = errorMessage.match(/reset after (\d+h)?(\d+m)?(\d+s)?/i);
|
|
if (!match) return null;
|
|
|
|
let totalMs = 0;
|
|
if (match[1]) totalMs += parseInt(match[1]) * 3600 * 1000; // hours
|
|
if (match[2]) totalMs += parseInt(match[2]) * 60 * 1000; // minutes
|
|
if (match[3]) totalMs += parseInt(match[3]) * 1000; // seconds
|
|
|
|
return totalMs > 0 ? totalMs : null;
|
|
}
|
|
|
|
async execute({ model, body, stream, credentials, signal, log, proxyOptions = null }) {
|
|
const fallbackCount = this.getFallbackCount();
|
|
let lastError = null;
|
|
let lastStatus = 0;
|
|
const MAX_AUTO_RETRIES = 3;
|
|
const MAX_RETRY_AFTER_RETRIES = 3;
|
|
const retryAttemptsByUrl = {}; // Track retry attempts per URL
|
|
const retryAfterAttemptsByUrl = {}; // Track Retry-After retries per URL
|
|
|
|
for (let urlIndex = 0; urlIndex < fallbackCount; urlIndex++) {
|
|
const url = this.buildUrl(model, stream, urlIndex);
|
|
const transformedBody = this.transformRequest(model, body, stream, credentials);
|
|
const sessionId = transformedBody.request?.sessionId;
|
|
const headers = this.buildHeaders(credentials, stream, sessionId);
|
|
|
|
// Initialize retry counters for this URL
|
|
if (!retryAttemptsByUrl[urlIndex]) {
|
|
retryAttemptsByUrl[urlIndex] = 0;
|
|
}
|
|
if (!retryAfterAttemptsByUrl[urlIndex]) {
|
|
retryAfterAttemptsByUrl[urlIndex] = 0;
|
|
}
|
|
|
|
try {
|
|
const response = await proxyAwareFetch(url, {
|
|
method: "POST",
|
|
headers,
|
|
body: JSON.stringify(transformedBody),
|
|
signal
|
|
}, proxyOptions);
|
|
|
|
if (response.status === HTTP_STATUS.RATE_LIMITED || response.status === HTTP_STATUS.SERVICE_UNAVAILABLE) {
|
|
// Try to get retry time from headers first
|
|
let retryMs = this.parseRetryHeaders(response.headers);
|
|
|
|
// If no retry time in headers, try to parse from error message body
|
|
if (!retryMs) {
|
|
try {
|
|
const errorBody = await response.clone().text();
|
|
const errorJson = JSON.parse(errorBody);
|
|
const errorMessage = errorJson?.error?.message || errorJson?.message || "";
|
|
retryMs = this.parseRetryFromErrorMessage(errorMessage);
|
|
} catch (e) {
|
|
// Ignore parse errors, will fall back to exponential backoff
|
|
}
|
|
}
|
|
|
|
if (retryMs && retryMs <= MAX_RETRY_AFTER_MS && retryAfterAttemptsByUrl[urlIndex] < MAX_RETRY_AFTER_RETRIES) {
|
|
retryAfterAttemptsByUrl[urlIndex]++;
|
|
log?.debug?.("RETRY", `${response.status} with Retry-After: ${Math.ceil(retryMs / 1000)}s, waiting... (${retryAfterAttemptsByUrl[urlIndex]}/${MAX_RETRY_AFTER_RETRIES})`);
|
|
await new Promise(resolve => setTimeout(resolve, retryMs));
|
|
urlIndex--;
|
|
continue;
|
|
}
|
|
|
|
// Auto retry only for 429 when retryMs is 0 or undefined
|
|
if (response.status === HTTP_STATUS.RATE_LIMITED && (!retryMs || retryMs === 0) && retryAttemptsByUrl[urlIndex] < MAX_AUTO_RETRIES) {
|
|
retryAttemptsByUrl[urlIndex]++;
|
|
// Exponential backoff: 2s, 4s, 8s...
|
|
const backoffMs = Math.min(1000 * (2 ** retryAttemptsByUrl[urlIndex]), MAX_RETRY_AFTER_MS);
|
|
log?.debug?.("RETRY", `429 auto retry ${retryAttemptsByUrl[urlIndex]}/${MAX_AUTO_RETRIES} after ${backoffMs / 1000}s`);
|
|
await new Promise(resolve => setTimeout(resolve, backoffMs));
|
|
urlIndex--;
|
|
continue;
|
|
}
|
|
|
|
log?.debug?.("RETRY", `${response.status}, Retry-After ${retryMs ? `too long (${Math.ceil(retryMs / 1000)}s)` : 'missing'}, trying fallback`);
|
|
lastStatus = response.status;
|
|
|
|
if (urlIndex + 1 < fallbackCount) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (this.shouldRetry(response.status, urlIndex)) {
|
|
log?.debug?.("RETRY", `${response.status} on ${url}, trying fallback ${urlIndex + 1}`);
|
|
lastStatus = response.status;
|
|
continue;
|
|
}
|
|
|
|
return { response, url, headers, transformedBody };
|
|
} catch (error) {
|
|
lastError = error;
|
|
if (urlIndex + 1 < fallbackCount) {
|
|
log?.debug?.("RETRY", `Error on ${url}, trying fallback ${urlIndex + 1}`);
|
|
continue;
|
|
}
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
throw lastError || new Error(`All ${fallbackCount} URLs failed with status ${lastStatus}`);
|
|
}
|
|
|
|
/**
|
|
* Cloak tools before sending to Antigravity provider (anti-ban):
|
|
* - Rename client tools with _ide suffix
|
|
* - Inject AG default decoy tools after client tools
|
|
* Returns { cloakedBody, toolNameMap } where toolNameMap maps suffixed → original
|
|
*/
|
|
static cloakTools(body, clientTool = null) {
|
|
const tools = body.request?.tools;
|
|
if (!tools || tools.length === 0) {
|
|
return { cloakedBody: body, toolNameMap: null };
|
|
}
|
|
|
|
const isCopilot = clientTool === "github-copilot";
|
|
const toolNameMap = new Map();
|
|
const clientDeclarations = [];
|
|
const decoyNames = new Set(AG_DECOY_TOOLS.map(tool => tool.name));
|
|
|
|
// First: collect renamed client tools
|
|
for (const toolGroup of tools) {
|
|
if (!toolGroup.functionDeclarations) continue;
|
|
|
|
for (const func of toolGroup.functionDeclarations) {
|
|
// For GitHub Copilot, avoid emitting duplicate native Antigravity tool names.
|
|
// Keep the decoys only once in the final declaration list.
|
|
if (isCopilot && AG_DEFAULT_TOOLS.has(func.name)) {
|
|
continue;
|
|
}
|
|
|
|
// Skip if already covered by decoys for Copilot
|
|
if (isCopilot && decoyNames.has(func.name)) {
|
|
continue;
|
|
}
|
|
|
|
// Preserve native AG names for non-Copilot clients
|
|
if (AG_DEFAULT_TOOLS.has(func.name)) {
|
|
clientDeclarations.push(func);
|
|
continue;
|
|
}
|
|
|
|
const suffixed = `${func.name}${AG_TOOL_SUFFIX}`;
|
|
toolNameMap.set(suffixed, func.name);
|
|
clientDeclarations.push({ ...func, name: suffixed });
|
|
}
|
|
}
|
|
|
|
// Client tools first, then AG decoy tools
|
|
const allDeclarations = [];
|
|
const seenNames = new Set();
|
|
for (const decl of [...clientDeclarations, ...AG_DECOY_TOOLS]) {
|
|
if (!decl?.name || seenNames.has(decl.name)) continue;
|
|
seenNames.add(decl.name);
|
|
allDeclarations.push(decl);
|
|
}
|
|
|
|
// Rename tool names in conversation history (contents)
|
|
const cloakedContents = body.request?.contents?.map(msg => {
|
|
if (!msg.parts) return msg;
|
|
|
|
const cloakedParts = msg.parts.map(part => {
|
|
// Rename functionCall.name
|
|
if (part.functionCall && !AG_DEFAULT_TOOLS.has(part.functionCall.name)) {
|
|
return {
|
|
...part,
|
|
functionCall: {
|
|
...part.functionCall,
|
|
name: `${part.functionCall.name}${AG_TOOL_SUFFIX}`
|
|
}
|
|
};
|
|
}
|
|
|
|
// Rename functionResponse.name
|
|
if (part.functionResponse && !AG_DEFAULT_TOOLS.has(part.functionResponse.name)) {
|
|
return {
|
|
...part,
|
|
functionResponse: {
|
|
...part.functionResponse,
|
|
name: `${part.functionResponse.name}${AG_TOOL_SUFFIX}`
|
|
}
|
|
};
|
|
}
|
|
|
|
return part;
|
|
});
|
|
|
|
return { ...msg, parts: cloakedParts };
|
|
});
|
|
|
|
// Single functionDeclarations group: client tools first, then decoys
|
|
return {
|
|
cloakedBody: {
|
|
...body,
|
|
request: {
|
|
...body.request,
|
|
tools: [{ functionDeclarations: allDeclarations }],
|
|
contents: cloakedContents || body.request.contents
|
|
}
|
|
},
|
|
toolNameMap
|
|
};
|
|
}
|
|
}
|
|
|
|
// AG decoy tools — same names as AG native defaults, redirect to _ide suffixed tools
|
|
const AG_DECOY_TOOLS = [
|
|
{
|
|
name: "browser_subagent",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "command_status",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "find_by_name",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "generate_image",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "grep_search",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "list_dir",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "list_resources",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "mcp_sequential-thinking_sequentialthinking",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "multi_replace_file_content",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "notify_user",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "read_resource",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "read_terminal",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "read_url_content",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "replace_file_content",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "run_command",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "search_web",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "send_command_input",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "task_boundary",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "view_content_chunk",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "view_file",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
},
|
|
{
|
|
name: "write_to_file",
|
|
description: "This tool is currently unavailable.",
|
|
parameters: { type: "OBJECT", properties: {}, required: [] }
|
|
}
|
|
];
|
|
|
|
export default AntigravityExecutor;
|