upload

.gitignore

@@ -127,3 +127,5 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+.idea/

main.py

@@ -0,0 +1,32 @@
+import uuid
+from fastapi import FastAPI
+from starlette.responses import RedirectResponse
+
+from utils import gen_url, get_auth
+
+app = FastAPI()
+
+
+@app.get('/gen')
+async def gen(
+    *,
+    username: str,
+    host: str,
+    back_host: str,
+):
+    session = str(uuid.uuid4())
+    return RedirectResponse(gen_url(username, host, back_host, session))
+
+
+@app.get("/{username}/{host}")
+async def back_to_telegram(
+    *,
+    username: str,
+    host: str,
+    session: str,
+):
+    data = await get_auth(host, session)
+    if data.get("ok", False):
+        return RedirectResponse(f"https://t.me/{username}?start={data['token']}")
+    else:
+        return data

requirements.txt

@@ -0,0 +1,4 @@
+httpx==0.23.3
+fastapi==0.89.1
+starlette==0.23.1
+uvicorn==0.20.0

utils.py

@@ -0,0 +1,27 @@
+import urllib.parse
+
+from httpx import AsyncClient
+
+client = AsyncClient()
+
+
+async def get_auth(host: str, session: str):
+    url = f"https://{host}/api/miauth/{session}/check"
+    response = await client.post(url)
+    return response.json()
+
+
+def callback_url(username: str, host: str, back_host: str):
+    return f"https://{back_host}/{username}/{host}"
+
+
+def gen_url(username: str, host: str, back_host: str, session: str):
+    return f"https://{host}/miauth/{session}?name=Misskey2Telegram&callback=" \
+           f"{urllib.parse.quote(callback_url(username, host, back_host))}" \
+           f"&permission=read:account,write:account,read:blocks,write:blocks,read:drive," \
+           f"write:drive,read:favorites,write:favorites,read:following,write:following," \
+           f"read:messaging,write:messaging,read:mutes,write:mutes,write:notes,read:notifications," \
+           f"write:notifications,read:reactions,write:reactions,write:votes,read:pages," \
+           f"write:pages,write:page-likes,read:page-likes,read:user-groups,write:user-groups," \
+           f"read:channels,write:channels,read:gallery,write:gallery,read:gallery-likes," \
+           f"write:gallery-likes"

vercel.json

@@ -0,0 +1,4 @@
+{
+ "builds": [{ "src": "main.py", "use": "@vercel/python" }],
+ "routes": [{ "src": "/(.*)", "dest": "main.py" }]
+}