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2b6ef22 62aa98f 2b6ef22 5a01a63 2b6ef22 b7dddbe 2b6ef22 b7dddbe 2b6ef22 | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 | from __future__ import annotations
import asyncio
import hmac as hmac_mod
import json
from fastapi import (
APIRouter,
HTTPException,
Request,
WebSocket,
WebSocketDisconnect,
)
from app.models.schemas import (
ChannelCreateRequest,
ChannelCreateResponse,
ChannelDeleteResponse,
ChannelInfoResponse,
ChannelListItem,
ChannelListResponse,
WebhookResponse,
WebhookSocketStatsResponse,
)
from app.services.webhook_socket_service import get_manager, verify_signature
router = APIRouter()
manager = get_manager()
@router.post("/channels", response_model=ChannelCreateResponse, summary="Create a webhook channel")
async def create_channel(
body: ChannelCreateRequest,
request: Request,
):
if body.channel_id and manager.get_channel(body.channel_id):
raise HTTPException(status_code=409, detail=f"Channel '{body.channel_id}' already exists")
ch = manager.create_channel(
channel_id=body.channel_id,
secret=body.secret,
buffer_size=body.buffer_size,
)
host = request.headers.get("host", "localhost:7860")
scheme = request.headers.get("x-forwarded-proto", "http")
ws_scheme = "wss" if scheme == "https" else "ws"
return ChannelCreateResponse(
channel_id=ch.channel_id,
webhook_url=f"{scheme}://{host}/api/v1/webhook/{ch.channel_id}",
ws_url=f"{ws_scheme}://{host}/api/v1/ws/{ch.channel_id}",
secret=ch.secret,
buffer_size=ch.buffer_size,
)
@router.get("/channels", response_model=ChannelListResponse, summary="List all webhook channels")
async def list_channels():
channels = []
for cid, ch in manager.channels.items():
channels.append(ChannelListItem(
channel_id=cid,
subscribers=len(ch.subscribers),
messages=ch.message_count,
buffered=len(ch.history),
created_at=ch.created_at,
last_activity=ch.last_activity,
))
return ChannelListResponse(channels=channels)
@router.get("/channels/{channel_id}", response_model=ChannelInfoResponse, summary="Get channel info")
async def channel_info(
channel_id: str,
):
ch = manager.get_channel(channel_id)
if not ch:
raise HTTPException(status_code=404, detail="Channel not found")
return ChannelInfoResponse(
channel_id=ch.channel_id,
subscribers=len(ch.subscribers),
messages=ch.message_count,
buffered=len(ch.history),
buffer_size=ch.buffer_size,
has_secret=ch.secret is not None,
created_at=ch.created_at,
last_activity=ch.last_activity,
)
@router.delete("/channels/{channel_id}", response_model=ChannelDeleteResponse, summary="Delete a channel")
async def delete_channel(
channel_id: str,
):
if manager.delete_channel(channel_id):
return ChannelDeleteResponse(deleted=channel_id)
raise HTTPException(status_code=404, detail="Channel not found")
@router.post("/webhook/{channel_id}", response_model=WebhookResponse, summary="Send webhook payload to channel")
async def handle_webhook(
channel_id: str,
request: Request,
):
ch = manager.get_channel(channel_id)
if not ch:
raise HTTPException(status_code=404, detail="Channel not found")
raw_body = await request.body()
if ch.secret:
sig_header = request.headers.get("X-Signature-256") or request.headers.get("X-Hub-Signature-256", "")
if not sig_header:
raise HTTPException(status_code=401, detail="Missing signature header")
if not verify_signature(ch.secret, raw_body, sig_header):
raise HTTPException(status_code=401, detail="Invalid signature")
content_type = request.headers.get("content-type", "")
if "json" in content_type:
try:
payload = json.loads(raw_body)
except json.JSONDecodeError:
payload = raw_body.decode(errors="replace")
elif "x-www-form-urlencoded" in content_type:
form = await request.form()
payload = dict(form)
else:
try:
payload = json.loads(raw_body)
except json.JSONDecodeError:
payload = raw_body.decode(errors="replace")
fwd_headers: dict[str, str] = {}
for h in ("X-GitHub-Event", "X-GitHub-Delivery", "X-Event-Type",
"X-Webhook-Name", "Content-Type", "User-Agent"):
if h in request.headers:
fwd_headers[h] = request.headers[h]
sent = await manager.publish(channel_id, payload, fwd_headers)
ch_ref = manager.get_channel(channel_id)
return WebhookResponse(
status="delivered",
channel=channel_id,
subscribers_notified=max(sent, 0),
message_id=ch_ref.message_count if ch_ref else 0,
)
@router.post("/hook/{channel_id}", response_model=WebhookResponse, summary="Send webhook payload (short alias)")
async def handle_webhook_short(
channel_id: str,
request: Request,
):
return await handle_webhook(channel_id, request)
@router.get("/ws/{channel_id}")
async def websocket_endpoint(
channel_id: str,
websocket: WebSocket,
secret: str = "",
):
ch = manager.get_channel(channel_id)
if not ch:
await websocket.accept()
await websocket.send_json({"event": "error", "message": "channel not found"})
await websocket.close(code=4404)
return
if ch.secret:
if not hmac_mod.compare_digest(secret, ch.secret):
await websocket.accept()
await websocket.send_json({"event": "error", "message": "unauthorized"})
await websocket.close(code=4401)
return
await websocket.accept()
q = manager.subscribe(channel_id, websocket)
if q is None:
await websocket.send_json({"event": "error", "message": "subscribe failed"})
await websocket.close()
return
await websocket.send_json({
"event": "connected",
"channel": channel_id,
"message": f"Listening on channel '{channel_id}'",
"buffered": len(ch.history),
})
async def forward_to_ws():
try:
while True:
try:
msg = await asyncio.wait_for(q.get(), timeout=30)
except asyncio.TimeoutError:
try:
await websocket.send_json({"event": "ping"})
except Exception:
break
continue
try:
await websocket.send_json(msg)
except Exception:
break
except asyncio.CancelledError:
pass
async def read_from_ws():
try:
while True:
try:
data = await websocket.receive_text()
try:
msg_data = json.loads(data)
if msg_data.get("type") == "ping":
await websocket.send_json({"event": "pong"})
except json.JSONDecodeError:
pass
except WebSocketDisconnect:
break
except asyncio.CancelledError:
pass
fwd_task = asyncio.create_task(forward_to_ws())
read_task = asyncio.create_task(read_from_ws())
try:
done, pending = await asyncio.wait(
[fwd_task, read_task], return_when=asyncio.FIRST_COMPLETED
)
finally:
fwd_task.cancel()
read_task.cancel()
manager.unsubscribe(channel_id, websocket)
@router.get("/webhook-socket/stats", response_model=WebhookSocketStatsResponse, summary="Webhook/socket server stats")
async def ws_stats():
return manager.stats()
|