Delete src/index.js
Browse files- src/index.js +0 -174
src/index.js
DELETED
@@ -1,174 +0,0 @@
|
|
1 |
-
const express = require('express')
|
2 |
-
const bodyParser = require('body-parser')
|
3 |
-
const axios = require('axios')
|
4 |
-
const app = express()
|
5 |
-
const uuid = require('uuid')
|
6 |
-
const { uploadImage } = require('./image')
|
7 |
-
|
8 |
-
app.use(bodyParser.json())
|
9 |
-
// 设置上传文件大小限制
|
10 |
-
app.use(bodyParser.json({ limit: '50mb' }))
|
11 |
-
app.use(bodyParser.urlencoded({ limit: '50mb', extended: true }))
|
12 |
-
|
13 |
-
|
14 |
-
const isJson = (str) => {
|
15 |
-
try {
|
16 |
-
JSON.parse(str)
|
17 |
-
return true
|
18 |
-
} catch (error) {
|
19 |
-
return false
|
20 |
-
}
|
21 |
-
}
|
22 |
-
|
23 |
-
app.get('/api/v1/models', async (req, res) => {
|
24 |
-
try {
|
25 |
-
const response = await axios.get('https://chat.qwenlm.ai/api/models',
|
26 |
-
{
|
27 |
-
headers: {
|
28 |
-
"Authorization": req.headers.authorization,
|
29 |
-
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
|
30 |
-
}
|
31 |
-
})
|
32 |
-
res.json(response.data)
|
33 |
-
} catch (error) {
|
34 |
-
res.status(403)
|
35 |
-
.json({
|
36 |
-
error: "请提供正确的 Authorization token"
|
37 |
-
})
|
38 |
-
}
|
39 |
-
})
|
40 |
-
|
41 |
-
app.post('/api/v1/chat/completions', async (req, res) => {
|
42 |
-
if (!req.headers.authorization) {
|
43 |
-
return res.status(403)
|
44 |
-
.json({
|
45 |
-
error: "请提供正确的 Authorization token"
|
46 |
-
})
|
47 |
-
}
|
48 |
-
const messages = req.body.messages
|
49 |
-
let imageId = null
|
50 |
-
const isImageMessage = Array.isArray(messages[messages.length - 1].content) === true && messages[messages.length - 1].content[1].image_url.url
|
51 |
-
if (isImageMessage) {
|
52 |
-
imageId = await uploadImage(messages[messages.length - 1].content[1].image_url.url, req.headers.authorization)
|
53 |
-
messages[messages.length - 1].content[1] = {
|
54 |
-
"type": "image",
|
55 |
-
"image": imageId
|
56 |
-
}
|
57 |
-
}
|
58 |
-
|
59 |
-
const stream = req.body.stream
|
60 |
-
|
61 |
-
const notStreamResponse = async (response) => {
|
62 |
-
const bodyTemplate = {
|
63 |
-
"id": `chatcmpl-${uuid.v4()}`,
|
64 |
-
"object": "chat.completion",
|
65 |
-
"created": new Date().getTime(),
|
66 |
-
"model": req.body.model,
|
67 |
-
"choices": [
|
68 |
-
{
|
69 |
-
"index": 0,
|
70 |
-
"message": {
|
71 |
-
"role": "assistant",
|
72 |
-
"content": response.choices[0].message.content
|
73 |
-
},
|
74 |
-
"finish_reason": "stop"
|
75 |
-
}
|
76 |
-
],
|
77 |
-
"usage": {
|
78 |
-
"prompt_tokens": JSON.stringify(req.body.messages).length,
|
79 |
-
"completion_tokens": response.choices[0].message.content.length,
|
80 |
-
"total_tokens": JSON.stringify(req.body.messages).length + response.choices[0].message.content.length
|
81 |
-
}
|
82 |
-
}
|
83 |
-
res.json(bodyTemplate)
|
84 |
-
}
|
85 |
-
|
86 |
-
const streamResponse = async (response) => {
|
87 |
-
const id = uuid.v4()
|
88 |
-
const decoder = new TextDecoder('utf-8')
|
89 |
-
let backContent = null
|
90 |
-
response.on('data', (chunk) => {
|
91 |
-
const decodeText = decoder.decode(chunk)
|
92 |
-
|
93 |
-
const lists = decodeText.split('\n').filter(item => item.trim() !== '')
|
94 |
-
for (const item of lists) {
|
95 |
-
const decodeJson = isJson(item.replace(/^data: /, '')) ? JSON.parse(item.replace(/^data: /, '')) : null
|
96 |
-
|
97 |
-
if (decodeJson === null) {
|
98 |
-
continue
|
99 |
-
}
|
100 |
-
|
101 |
-
let content = decodeJson.choices[0].delta.content
|
102 |
-
|
103 |
-
if (backContent === null) {
|
104 |
-
backContent = content
|
105 |
-
} else {
|
106 |
-
const temp = content
|
107 |
-
content = content.replace(backContent, '')
|
108 |
-
backContent = temp
|
109 |
-
}
|
110 |
-
|
111 |
-
const StreamTemplate = {
|
112 |
-
"id": `chatcmpl-${id}`,
|
113 |
-
"object": "chat.completion.chunk",
|
114 |
-
"created": new Date().getTime(),
|
115 |
-
"choices": [
|
116 |
-
{
|
117 |
-
"index": 0,
|
118 |
-
"delta": {
|
119 |
-
"content": content
|
120 |
-
},
|
121 |
-
"finish_reason": null
|
122 |
-
}
|
123 |
-
]
|
124 |
-
}
|
125 |
-
res.write(`data: ${JSON.stringify(StreamTemplate)}\n\n`)
|
126 |
-
}
|
127 |
-
})
|
128 |
-
|
129 |
-
response.on('end', () => {
|
130 |
-
res.write(`data: [DONE]\n\n`)
|
131 |
-
res.end()
|
132 |
-
})
|
133 |
-
|
134 |
-
}
|
135 |
-
|
136 |
-
try {
|
137 |
-
const response = await axios.post('https://chat.qwenlm.ai/api/chat/completions',
|
138 |
-
req.body,
|
139 |
-
{
|
140 |
-
headers: {
|
141 |
-
"Authorization": req.headers.authorization,
|
142 |
-
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36"
|
143 |
-
},
|
144 |
-
responseType: stream ? 'stream' : 'json'
|
145 |
-
}
|
146 |
-
)
|
147 |
-
if (stream) {
|
148 |
-
res.set({
|
149 |
-
'Content-Type': 'text/event-stream',
|
150 |
-
'Cache-Control': 'no-cache',
|
151 |
-
'Connection': 'keep-alive',
|
152 |
-
})
|
153 |
-
streamResponse(response.data)
|
154 |
-
} else {
|
155 |
-
res.set({
|
156 |
-
'Content-Type': 'application/json',
|
157 |
-
})
|
158 |
-
notStreamResponse(response.data)
|
159 |
-
}
|
160 |
-
|
161 |
-
} catch (error) {
|
162 |
-
console.log(error)
|
163 |
-
res.status(500)
|
164 |
-
.json({
|
165 |
-
error: "罢工了,不干了!!!"
|
166 |
-
})
|
167 |
-
}
|
168 |
-
|
169 |
-
})
|
170 |
-
|
171 |
-
app.listen(3000, () => {
|
172 |
-
console.log('Server is running on port 3000')
|
173 |
-
})
|
174 |
-
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|