File size: 3,889 Bytes
f0743f4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | import path from 'path';
import axios from 'axios';
import { logger } from '@librechat/data-schemas';
import { readFileAsString } from './files';
export interface GoogleServiceKey {
type?: string;
project_id?: string;
private_key_id?: string;
private_key?: string;
client_email?: string;
client_id?: string;
auth_uri?: string;
token_uri?: string;
auth_provider_x509_cert_url?: string;
client_x509_cert_url?: string;
[key: string]: unknown;
}
/**
* Load Google service key from file path, URL, or stringified JSON
* @param keyPath - The path to the service key file, URL to fetch it from, or stringified JSON
* @returns The parsed service key object or null if failed
*/
export async function loadServiceKey(keyPath: string): Promise<GoogleServiceKey | null> {
if (!keyPath) {
return null;
}
let serviceKey: unknown;
// Check if it's base64 encoded (common pattern for storing in env vars)
if (keyPath.trim().match(/^[A-Za-z0-9+/]+=*$/)) {
try {
const decoded = Buffer.from(keyPath.trim(), 'base64').toString('utf-8');
// Try to parse the decoded string as JSON
serviceKey = JSON.parse(decoded);
} catch {
// Not base64 or not valid JSON after decoding, continue with other methods
// Silent failure - not critical
}
}
// Check if it's a stringified JSON (starts with '{')
if (!serviceKey && keyPath.trim().startsWith('{')) {
try {
serviceKey = JSON.parse(keyPath);
} catch (error) {
logger.error('Failed to parse service key from stringified JSON', error);
return null;
}
}
// Check if it's a URL
else if (!serviceKey && /^https?:\/\//.test(keyPath)) {
try {
const response = await axios.get(keyPath);
serviceKey = response.data;
} catch (error) {
logger.error(`Failed to fetch the service key from URL: ${keyPath}`, error);
return null;
}
} else if (!serviceKey) {
// It's a file path
try {
const absolutePath = path.isAbsolute(keyPath) ? keyPath : path.resolve(keyPath);
const { content: fileContent } = await readFileAsString(absolutePath);
serviceKey = JSON.parse(fileContent);
} catch (error) {
logger.error(`Failed to load service key from file: ${keyPath}`, error);
return null;
}
}
// If the response is a string (e.g., from a URL that returns JSON as text), parse it
if (typeof serviceKey === 'string') {
try {
serviceKey = JSON.parse(serviceKey);
} catch (parseError) {
logger.error(`Failed to parse service key JSON from ${keyPath}`, parseError);
return null;
}
}
// Validate the service key has required fields
if (!serviceKey || typeof serviceKey !== 'object') {
logger.error(`Invalid service key format from ${keyPath}`);
return null;
}
// Fix private key formatting if needed
const key = serviceKey as GoogleServiceKey;
if (key.private_key && typeof key.private_key === 'string') {
// Replace escaped newlines with actual newlines
// When JSON.parse processes "\\n", it becomes "\n" (single backslash + n)
// When JSON.parse processes "\n", it becomes an actual newline character
key.private_key = key.private_key.replace(/\\n/g, '\n');
// Also handle the String.raw`\n` case mentioned in Stack Overflow
key.private_key = key.private_key.split(String.raw`\n`).join('\n');
// Ensure proper PEM format
if (!key.private_key.includes('\n')) {
// If no newlines are present, try to format it properly
const privateKeyMatch = key.private_key.match(
/^(-----BEGIN [A-Z ]+-----)(.*)(-----END [A-Z ]+-----)$/,
);
if (privateKeyMatch) {
const [, header, body, footer] = privateKeyMatch;
// Add newlines after header and before footer
key.private_key = `${header}\n${body}\n${footer}`;
}
}
}
return key;
}
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