mirror of
https://github.com/langbot-app/LangBot.git
synced 2026-06-22 13:34:24 +00:00
Junyan Chin
144bec371c
* docs(platform): add HTTP Bot adapter design (RFC)
Standalone server-to-server HTTP adapter for driving a pipeline from external
systems (LangBot Space ticketing et al). Inbound via the existing unified
webhook route; outbound via signed callback POSTs. Preserves pipeline-native
N->1 aggregation and 1->M multi-reply without a long-lived WebSocket.
No core changes required (router/aggregator/pipeline untouched).
* feat(platform): add standalone HTTP Bot adapter
A first-class, vendor-neutral message-platform adapter (http_bot) for
server-to-server integrations (LangBot Space ticketing et al). Drives a
pipeline over plain HTTP with no long-lived connection:
- Inbound: signed POST to the existing unified webhook route /bots/<uuid>,
carrying a caller-defined session_id mapped to the LangBot launcher id via
get_launcher_id -> per-session isolation. Preserves pipeline-native N->1
aggregation for free.
- Outbound: each reply_message / reply_message_chunk becomes one signed
callback POST to the config-only callback_url, delivered in per-session
sequence order with retry/backoff -> 1->M multi-reply.
- Sub-paths: /reset (drop a session) and /sync (block for the collapsed reply).
- Auth: symmetric HMAC-SHA256 both directions (timestamp + replay window),
no JWT/Turnstile, no socket.
Decisions: callback URL is config-only (SSRF closed); reset + sync shipped;
Python + TS reference clients shipped (signing verified byte-identical 3-way).
No core changes: the unified webhook router, aggregator, query pool and
pipeline are untouched. Adapter is auto-discovered from platform/sources/.
Adds:
src/langbot/pkg/platform/sources/http_bot.{py,yaml,svg}
src/langbot/pkg/platform/sources/http_bot_signing.py
docs/platforms/http-bot.md, docs/http-bot-openapi.json
examples/http-bot/{client.py,client.ts,README.md}
Updates docs/HTTP_BOT_ADAPTER_DESIGN.md (status: implemented).
* docs(examples): add interactive HTTP Bot playground (browser debug console)
A single-file aiohttp web app (examples/http-bot/playground.py) that lets you
chat with a RUNNING http_bot bot from the browser and watch the protocol live:
signed inbound POST -> 202 ack -> 1->M signed callbacks streamed back via SSE,
with a debug panel showing the signature, HTTP status, and per-callback
sequence/verification. Light LangBot-styled UI.
On startup it reads the API key + http_bot bot from data/langbot.db and points
the bot's callback_url + secrets back at itself via the LangBot API (live
reload, no restart). README updated with a playground section.
* docs(examples): add Chinese README for http-bot reference clients
* style(platform): use </> code icon for http_bot adapter logo
* docs(examples): point http-bot guide links to docs.langbot.app
* style(platform): make http_bot icon a transparent monochrome </> so WebUI tints it like other adapters
* Revert to colorful </> badge for http_bot icon (WebUI renders it as-is)