File size: 4,164 Bytes
aa2e6af | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | const {
CacheKeys,
ErrorTypes,
envVarRegex,
EModelEndpoint,
FetchTokenConfig,
extractEnvVariable,
} = require('librechat-data-provider');
const { getUserKeyValues, checkUserKeyExpiry } = require('~/server/services/UserService');
const getCustomConfig = require('~/server/services/Config/getCustomConfig');
const { fetchModels } = require('~/server/services/ModelService');
const getLogStores = require('~/cache/getLogStores');
const { isUserProvided } = require('~/server/utils');
const { OpenAIClient } = require('~/app');
const { PROXY } = process.env;
const initializeClient = async ({ req, res, endpointOption }) => {
const { key: expiresAt, endpoint } = req.body;
const customConfig = await getCustomConfig();
if (!customConfig) {
throw new Error(`Config not found for the ${endpoint} custom endpoint.`);
}
const { endpoints = {} } = customConfig;
const customEndpoints = endpoints[EModelEndpoint.custom] ?? [];
const endpointConfig = customEndpoints.find((endpointConfig) => endpointConfig.name === endpoint);
const CUSTOM_API_KEY = extractEnvVariable(endpointConfig.apiKey);
const CUSTOM_BASE_URL = extractEnvVariable(endpointConfig.baseURL);
let resolvedHeaders = {};
if (endpointConfig.headers && typeof endpointConfig.headers === 'object') {
Object.keys(endpointConfig.headers).forEach((key) => {
resolvedHeaders[key] = extractEnvVariable(endpointConfig.headers[key]);
});
}
if (CUSTOM_API_KEY.match(envVarRegex)) {
throw new Error(`Missing API Key for ${endpoint}.`);
}
if (CUSTOM_BASE_URL.match(envVarRegex)) {
throw new Error(`Missing Base URL for ${endpoint}.`);
}
const userProvidesKey = isUserProvided(CUSTOM_API_KEY);
const userProvidesURL = isUserProvided(CUSTOM_BASE_URL);
let userValues = null;
if (expiresAt && (userProvidesKey || userProvidesURL)) {
checkUserKeyExpiry(expiresAt, endpoint);
userValues = await getUserKeyValues({ userId: req.user.id, name: endpoint });
}
let apiKey = userProvidesKey ? userValues?.apiKey : CUSTOM_API_KEY;
let baseURL = userProvidesURL ? userValues?.baseURL : CUSTOM_BASE_URL;
if (userProvidesKey & !apiKey) {
throw new Error(
JSON.stringify({
type: ErrorTypes.NO_USER_KEY,
}),
);
}
if (userProvidesURL && !baseURL) {
throw new Error(
JSON.stringify({
type: ErrorTypes.NO_BASE_URL,
}),
);
}
if (!apiKey) {
throw new Error(`${endpoint} API key not provided.`);
}
if (!baseURL) {
throw new Error(`${endpoint} Base URL not provided.`);
}
const cache = getLogStores(CacheKeys.TOKEN_CONFIG);
const tokenKey =
!endpointConfig.tokenConfig && (userProvidesKey || userProvidesURL)
? `${endpoint}:${req.user.id}`
: endpoint;
let endpointTokenConfig =
!endpointConfig.tokenConfig &&
FetchTokenConfig[endpoint.toLowerCase()] &&
(await cache.get(tokenKey));
if (
FetchTokenConfig[endpoint.toLowerCase()] &&
endpointConfig &&
endpointConfig.models.fetch &&
!endpointTokenConfig
) {
await fetchModels({ apiKey, baseURL, name: endpoint, user: req.user.id, tokenKey });
endpointTokenConfig = await cache.get(tokenKey);
}
const customOptions = {
headers: resolvedHeaders,
addParams: endpointConfig.addParams,
dropParams: endpointConfig.dropParams,
titleConvo: endpointConfig.titleConvo,
titleModel: endpointConfig.titleModel,
forcePrompt: endpointConfig.forcePrompt,
summaryModel: endpointConfig.summaryModel,
modelDisplayLabel: endpointConfig.modelDisplayLabel,
titleMethod: endpointConfig.titleMethod ?? 'completion',
contextStrategy: endpointConfig.summarize ? 'summarize' : null,
directEndpoint: endpointConfig.directEndpoint,
titleMessageRole: endpointConfig.titleMessageRole,
endpointTokenConfig,
};
const clientOptions = {
reverseProxyUrl: baseURL ?? null,
proxy: PROXY ?? null,
req,
res,
...customOptions,
...endpointOption,
};
const client = new OpenAIClient(apiKey, clientOptions);
return {
client,
openAIApiKey: apiKey,
};
};
module.exports = initializeClient;
|