 yetone
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eebd0b4222
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plugin, gateway, gui: a plugin can be gateway middleware — onRequest, onEvent and onResponse run in magpie's gateway on what agents send and get back (moejs) — a plugin could only be a subscription provider, run in the Bun host, a process away from the gateway. A plugin may now declare middleware (package.json magpie.middleware, or a *.middleware.js / .mjs file), run in-process by moejs (pure-Go JS engine): compiled once, one runtime per request from a pool, so every hook of a request shares ctx.state. onRequest(body, ctx) sees the agent's body in its own API before routing; what it returns is the body the next middleware and the gateway get, undefined leaves the bytes as they were, ctx.reject(status, msg) answers with an error in the agent's API's shape. onEvent(ev, ctx) sees each SSE event's JSON (export const events = [...] filters by name; an object changes it, null drops it, undefined passes the bytes through untouched; data: [DONE] is no JSON and passes by). onResponse(body, ctx) sees a whole JSON reply, with ctx.status. ctx has protocol, model, stream, path, agent, the plugin's options and state. A hook that throws, returns a non-object or runs past its limit (250ms request/response, 50ms an event, 1s load; interrupted) leaves the request or reply as it was and is counted and logged (60 lines a minute); a compressed reply passes as-is. Files are reloaded within a second of a change. Only agents' requests run through it (serveAgent at the gateway's agent entry points and the Codex backend), never magpie's own titles, classifier or stand-ins; it sees bodies before redaction. A middleware-only package is skipped by the Bun host. The Plugins page marks a middleware with a chip, its hooks, calls and µs per call (JSON in and out counted), failures in red with the last error, and a load error. en/zh/ja/de; docs/reference.md and usemagpie.ai/docs/plugins#middleware (en/zh/ja) with an alias example. Tested with a real DeepSeek account through magpie web --gateway in a sandbox HOME: an alias middleware served "fast" and named it in message_start, a reject came back as 403 permission_error, a Chat stream uppercased; real Claude Code (sandbox CLAUDE_CONFIG_DIR) did Read, Bash and Glob tool turns through three middlewares with 0 failures: ≈1–1.6µs an event, 0.2–0.7ms an onRequest that parses and rewrites Claude Code's ≈80KB body. Real use found two bugs fixed here: [DONE] parsed as JSON (SyntaxError on every Chat stream) and stats leaving out the JSON time. internal/middleware tests (chain, undefined keeps bytes, reject, fail-open on throw/spin/string with the runtime reused, async hook, load errors, off and Bun skip, reload, split/CRLF/filtered/dropped stream events, [DONE] untouched, whole reply and gzip, 64 in parallel; BenchmarkEvent ≈0.9µs, 11 allocs) and TestMiddlewareThroughGateway (alias routed, events by protocol, redaction still upstream, reject in Anthropic's shape; fails without the change) are new; plugin-middleware.test.cjs (Chromium and WebKit, en and zh: chip, hooks and stats, failures with last error, broken and off, no left border) fails without it. The other plugin GUI tests and click-scroll pass in WebKit. go vet, go build (darwin, GOOS=linux nogui, GOOS=windows) and go test -tags nogui ./... under a temp HOME pass (internal/provider failed once under load and passes alone).
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2026-10-05 19:14:31 +08:00 |
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