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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| import { Models, getUserConfig } from '../../config/index.mjs' | ||
| import { pushRecord, setAbortController } from './shared.mjs' | ||
| import { isEmpty } from 'lodash-es' | ||
| import { getToken } from '../../utils/jwt-token-generator.mjs' | ||
| import { createParser } from '../../utils/eventsource-parser.mjs' | ||
|
|
||
| async function fetchSSE(resource, options) { | ||
| const { onMessage, onStart, onEnd, onError, ...fetchOptions } = options | ||
| const resp = await fetch(resource, fetchOptions).catch(async (err) => { | ||
| await onError(err) | ||
| }) | ||
| if (!resp) return | ||
| if (!resp.ok) { | ||
| await onError(resp) | ||
| return | ||
| } | ||
|
|
||
| const parser = createParser((event) => { | ||
| if (event.type === 'event') { | ||
| onMessage(event) | ||
| } | ||
| }) | ||
|
|
||
| let hasStarted = false | ||
| const reader = resp.body.getReader() | ||
| let result | ||
| while (!(result = await reader.read()).done) { | ||
| const chunk = result.value | ||
| if (!hasStarted) { | ||
| hasStarted = true | ||
| await onStart(new TextDecoder().decode(chunk)) | ||
| } | ||
| parser.feed(chunk) | ||
| } | ||
| await onEnd() | ||
| } | ||
|
|
||
| /** | ||
| * @param {Runtime.Port} port | ||
| * @param {string} question | ||
| * @param {Session} session | ||
| * @param {string} modelName | ||
| */ | ||
| export async function generateAnswersWithChatGLMApi(port, question, session, modelName) { | ||
| const { controller, messageListener, disconnectListener } = setAbortController(port) | ||
| const config = await getUserConfig() | ||
|
|
||
| const prompt = [] | ||
| for (const record of session.conversationRecords.slice(-config.maxConversationContextLength)) { | ||
| prompt.push({ role: 'user', content: record.question }) | ||
| prompt.push({ role: 'assistant', content: record.answer }) | ||
| } | ||
| prompt.push({ role: 'user', content: question }) | ||
|
|
||
| let answer = '' | ||
| await fetchSSE( | ||
| `https://open.bigmodel.cn/api/paas/v3/model-api/${Models[modelName].value}/sse-invoke`, | ||
| { | ||
| method: 'POST', | ||
| signal: controller.signal, | ||
| headers: { | ||
| 'Content-Type': 'application/json; charset=UTF-8', | ||
| Accept: 'text/event-stream', | ||
| Authorization: getToken(config.chatglmApiKey), | ||
| }, | ||
| body: JSON.stringify({ | ||
| prompt: prompt, | ||
| // temperature: config.temperature, | ||
| // top_t: 0.7, | ||
| // request_id: string | ||
| // incremental: true, | ||
| // return_type: "json_string", | ||
| // ref: {"enable": "true", "search_query": "history"}, | ||
| }), | ||
| onMessage(event) { | ||
| console.debug('sse event', event) | ||
|
|
||
| // Handle different types of events | ||
| switch (event.event) { | ||
| case 'add': | ||
| // In the case of an "add" event, append the completion to the answer | ||
| if (event.data) { | ||
| answer += event.data | ||
| port.postMessage({ answer: answer, done: false, session: null }) | ||
| } | ||
| break | ||
| case 'error': | ||
| case 'interrupted': | ||
| case 'finish': | ||
| pushRecord(session, question, answer) | ||
| console.debug('conversation history', { content: session.conversationRecords }) | ||
| port.postMessage({ answer: null, done: true, session: session }) | ||
| break | ||
| default: | ||
| break | ||
| } | ||
| }, | ||
| async onStart() {}, | ||
| async onEnd() { | ||
| port.postMessage({ done: true }) | ||
| port.onMessage.removeListener(messageListener) | ||
| port.onDisconnect.removeListener(disconnectListener) | ||
| }, | ||
| async onError(resp) { | ||
| port.onMessage.removeListener(messageListener) | ||
| port.onDisconnect.removeListener(disconnectListener) | ||
| if (resp instanceof Error) throw resp | ||
| const error = await resp.json().catch(() => ({})) | ||
| throw new Error( | ||
| !isEmpty(error) ? JSON.stringify(error) : `${resp.status} ${resp.statusText}`, | ||
| ) | ||
| }, | ||
| }, | ||
| ) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| import jwt from 'jsonwebtoken' | ||
|
|
||
| let jwtToken = null | ||
| let tokenExpiration = null // Declare tokenExpiration in the module scope | ||
|
|
||
| function generateToken(apiKey, timeoutSeconds) { | ||
| const parts = apiKey.split('.') | ||
| if (parts.length !== 2) { | ||
| throw new Error('Invalid API key') | ||
| } | ||
|
|
||
| const ms = Date.now() | ||
| const currentSeconds = Math.floor(ms / 1000) | ||
| const [id, secret] = parts | ||
| const payload = { | ||
| api_key: id, | ||
| exp: currentSeconds + timeoutSeconds, | ||
| timestamp: currentSeconds, | ||
| } | ||
|
|
||
| jwtToken = jwt.sign(payload, secret, { | ||
| header: { | ||
| alg: 'HS256', | ||
| typ: 'JWT', | ||
| sign_type: 'SIGN', | ||
| }, | ||
| }) | ||
| tokenExpiration = ms + timeoutSeconds * 1000 | ||
| } | ||
|
|
||
| function shouldRegenerateToken() { | ||
| const ms = Date.now() | ||
| return !jwtToken || ms >= tokenExpiration | ||
| } | ||
|
|
||
| function getToken(apiKey) { | ||
| if (shouldRegenerateToken()) { | ||
| generateToken(apiKey, 86400) // Hard-coded to regenerate the token every 24 hours | ||
| } | ||
| return jwtToken | ||
| } | ||
|
|
||
| export { getToken } |