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# "ack"nowledge the ping from Discord |
return {"type": DiscordResponseType.PONG.value} |
if data.get("type") == DiscordInteractionType.APPLICATION_COMMAND.value: |
# this is a command interaction |
app_id = data["application_id"] |
interaction_token = data["token"] |
user_id = data["member"]["user"]["id"] |
question = data["data"]["options"][0]["value"] |
pretty_log(question) |
# kick off our actual response in the background |
respond.spawn( |
question, |
app_id, |
interaction_token, |
user_id, |
) |
# and respond immediately to let Discord know we're on the case |
return { |
"type": DiscordResponseType.DEFERRED_CHANNEL_MESSAGE_WITH_SOURCE.value |
} |
raise HTTPException(status_code=400, detail="Bad request") |
return app |
@stub.function() |
async def respond( |
question: str, |
application_id: str, |
interaction_token: str, |
user_id: str, |
): |
"""Respond to a user's question by passing it to the language model.""" |
import modal |
try: |
raw_response = await modal.Function.lookup( |
"askfsdl-backend", "qanda" |
).remote.aio(question, request_id=interaction_token, with_logging=True) |
pretty_log(raw_response) |
response = construct_response(raw_response, user_id, question) |
except Exception as e: |
pretty_log("Error", e) |
response = construct_error_message(user_id) |
await send_response(response, application_id, interaction_token) |
async def send_response( |
response: str, |
application_id: str, |
interaction_token: str, |
): |
"""Send a response to the user interaction.""" |
interaction_url = ( |
f"https://discord.com/api/v10/webhooks/{application_id}/{interaction_token}" |
) |
json_payload = {"content": f"{response}"} |
payload = aiohttp.FormData() |
payload.add_field( |
"payload_json", json.dumps(json_payload), content_type="application/json" |
) |
async with aiohttp.ClientSession() as session: |
async with session.post(interaction_url, data=payload) as resp: |
await resp.text() |
async def verify(request: Request): |
"""Verify that the request is from Discord.""" |
from nacl.signing import VerifyKey |
from nacl.exceptions import BadSignatureError |
public_key = os.getenv("DISCORD_PUBLIC_KEY") |
verify_key = VerifyKey(bytes.fromhex(public_key)) |
signature = request.headers.get("X-Signature-Ed25519") |
timestamp = request.headers.get("X-Signature-Timestamp") |
body = await request.body() |
message = timestamp.encode() + body |
try: |
verify_key.verify(message, bytes.fromhex(signature)) |
except BadSignatureError: |
# IMPORTANT: if you let bad signatures through, |
# Discord will refuse to talk to you |
raise HTTPException(status_code=401, detail="Invalid request") from None |
return body |
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