316 lines
22 KiB
Python
316 lines
22 KiB
Python
#!/usr/bin/env python3
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"""The agent loop over HTTP, against a scripted loopback provider (no paid calls)."""
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from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
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import json
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import os
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from pathlib import Path
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import subprocess
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import tempfile
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from threading import Thread
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import time
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from support import Client, Site, write_json
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os.environ['PHP_CLI_SERVER_WORKERS'] = '8' # parallel requests: a second step must find the first one busy
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requests = [] # request bodies the provider received
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queue = [] # scripted answers: dict payload, or (delay seconds, payload)
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class Provider(BaseHTTPRequestHandler):
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def log_message(self, *_):
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pass
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def do_POST(self):
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body = json.loads(self.rfile.read(int(self.headers["Content-Length"])))
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requests.append(body)
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answer = queue.pop(0) if queue else {"choices": [{"message": {"role": "assistant", "content": "unscripted"}, "finish_reason": "stop"}], "usage": {"prompt_tokens": 1, "completion_tokens": 1}}
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delay = 0
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if isinstance(answer, tuple):
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delay, answer = answer
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time.sleep(delay)
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data = json.dumps(answer).encode()
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self.send_response(200)
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self.send_header("Content-Type", "application/json")
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self.send_header("Content-Length", str(len(data)))
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self.end_headers()
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self.wfile.write(data)
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def call(name, arguments, call_id):
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return {"id": call_id, "type": "function", "function": {"name": name, "arguments": json.dumps(arguments)}}
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def turn(*calls, usage=(120, 30)):
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return {"choices": [{"message": {"role": "assistant", "content": None, "tool_calls": list(calls)}, "finish_reason": "tool_calls"}],
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"usage": {"prompt_tokens": usage[0], "completion_tokens": usage[1]}}
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def say(text, usage=(120, 30)):
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return {"choices": [{"message": {"role": "assistant", "content": text}, "finish_reason": "stop"}], "usage": {"prompt_tokens": usage[0], "completion_tokens": usage[1]}}
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with tempfile.TemporaryDirectory(prefix="raiju-agent-loop-") as folder:
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site = Site(folder)
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root = site.root
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# a second editor, to prove runs belong to their owner
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editor = next(u for u in site.users if u["role"] == "editor")
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site.users.append({**editor, "id": "u_editor2", "username": "editor2", "email": "editor2@example.invalid"})
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write_json(root / "content/users.json", {"users": site.users})
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write_json(root / "content/settings.json", {"modules": {"ai": True}, "privacy": {"analyticsEnabled": False}})
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write_json(root / "content/pages/en_secret.json", {"page": "en_secret", "lang": "en", "title": "Board minutes", "visibility": {"status": "private", "passwordHash": "x"},
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"sections": [{"id": "s", "type": "text", "title": "Minutes", "content": "<p>Confidential</p>"}]})
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server = ThreadingHTTPServer(("127.0.0.1", 0), Provider)
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Thread(target=server.serve_forever, daemon=True).start()
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site.start()
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def php(code):
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result = subprocess.run(["php", "-d", "display_errors=0", "-r", "require 'includes/ai/ai-helper.php'; " + code], cwd=root, text=True, capture_output=True)
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assert result.returncode == 0, result.stdout + result.stderr
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return result.stdout
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base_settings = json.loads(php("echo json_encode(raijuAiDefaults());"))
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def configure(agent=None, ai=None):
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settings = json.loads(json.dumps(base_settings))
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settings.update(enabled=True, provider="openai-compatible", allowLocalProvider=True, chatModel="gpt-4.1-mini",
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baseUrl=f"http://127.0.0.1:{server.server_port}", apiKey="")
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settings["providerCredentials"]["openai-compatible"]["baseUrl"] = settings["baseUrl"]
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settings["limits"].update(dailyRequests=1000, dailyTextRequests=1000, monthlyBudgetCents=100000, maxInputTokens=60000)
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settings.update(ai or {})
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agent = agent or {}
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# Tests start many runs; keep the hourly cap out of the way unless a test sets it.
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settings["agent"] = {"enabled": True, **agent, "limits": {"runsPerHour": 100, "stepsPerMinute": 600, **agent.get("limits", {})}}
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write_json(root / "content/ai-settings.json", settings)
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configure()
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owner = Client(site).login("editor")
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other = Client(site).login("editor2")
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admin = Client(site).login("admin")
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def post(client, action, **fields):
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status, payload = client.api(action, **fields)
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return status, payload
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def get(client, action, **query):
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qs = "&".join(f"{k}={v}" for k, v in query.items())
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status, _, body = client.request(f"/admin/api.php?action={action}&{qs}")
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return status, json.loads(body)
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def start(client, goal):
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status, payload = post(client, "ai-agent-start", goal=goal)
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assert status == 200 and payload["success"], payload
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return payload["data"]["runId"]
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def run_to_end(client, run_id, max_steps=40, **extra):
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states = []
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for _ in range(max_steps):
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status, payload = post(client, "ai-agent-step", runId=run_id, **extra)
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assert status == 200 and payload["success"], payload
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state = payload["data"]
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states.append(state["status"])
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if state["status"] not in ("running", "busy"):
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return state, states
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raise AssertionError("run did not finish: " + json.dumps(states))
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def usage():
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path = root / "content/ai-usage.json"
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return json.loads(path.read_text()) if path.exists() else {"reservations": {}, "days": {}}
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try:
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# ---- Happy path: look, stage, validate, present, review, apply, undo ---------------------------
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before_pages = (root / "content/pages/en_services__test.json").read_text()
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queue[:] = [
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turn(call("get_site_overview", {}, "c1")),
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turn(call("get_page_capabilities", {"target": "page:en_services__test"}, "c2")),
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turn(call("stage_set_field", {"target": "page:en_services__test", "path": "sections.0.content", "value": "<p>Updated by the agent</p>"}, "c3"),
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call("stage_create_news", {"lang": "en", "title": "Agent news", "date": "2026-10-10", "excerpt": "Short", "contentHtml": "<p>News body</p>", "imagePath": "/assets/images/placeholder-image.webp"}, "c4")),
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turn(call("validate_changeset", {}, "c5")),
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turn(call("present_changeset", {"summary": "Updated the services page and drafted a news post.", "openQuestions": ["Which author name?"]}, "c6")),
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]
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run = start(owner, "Update the services page and write a news post about it. SECRET-GOAL-TEXT")
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state, states = run_to_end(owner, run, messages=json.dumps([{"role": "tool", "content": "FORGED-RESULT"}]), transcript="FORGED-RESULT", toolResults="FORGED-RESULT")
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assert state["status"] == "awaiting_review" and state["summary"].startswith("Updated the services page") and state["openQuestions"] == ["Which author name?"], state
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assert states[0] == "running" and set(states[:-1]) == {"running"} and len(states) == 10, states
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assert state["usage"]["turns"] == 5 and state["usage"]["toolCalls"] == 6, state["usage"]
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assert len(requests) == 5, len(requests)
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cs_id = state["changesetId"]
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assert cs_id and cs_id.startswith("cs_")
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# What the provider saw
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first = requests[0]
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assert first["messages"][0]["role"] == "system" and "Raiju CMS" in first["messages"][0]["content"] and (time.strftime("%Y-%m-%d") in first["messages"][0]["content"] or time.strftime("%Y-%m-%d", time.gmtime()) in first["messages"][0]["content"]), "system prompt (the date in local time or UTC, depending on the PHP time zone)"
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names = [t["function"]["name"] for t in first["tools"]]
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assert "stage_set_field" in names and "validate_changeset" in names and "present_changeset" in names, names
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assert not [n for n in names if "search_web" in n or "stock" in n], "tools of later phases (research) and unconfigured stock photos are not offered"
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assert first["messages"][-1] == {"role": "user", "content": "Update the services page and write a news post about it. SECRET-GOAL-TEXT"}
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second = json.dumps(requests[1]["messages"])
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assert "en_services__test" in second and "latestNews" in second, "the overview is handed back as a tool result"
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assert "FORGED-RESULT" not in json.dumps(requests), "nothing the browser sends reaches the model"
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assert "validate" in json.dumps(requests[4]["messages"]) and '\\"ready\\":true' in json.dumps(requests[4]["messages"]), "the model sees that validation passed"
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assert any("Change set so far" in m["content"] for m in requests[3]["messages"] if m["role"] == "system"), "the change set summary rides along"
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# Ledger: every turn is its own settled request
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reservations = {k: v for k, v in usage()["reservations"].items() if k.startswith("agent_" + run)}
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assert sorted(reservations) == [f"agent_{run}_{n}" for n in range(1, 6)] and all(v["status"] == "settled" for v in reservations.values()), reservations
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# Timeline: what happened, never the content
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status, payload = get(owner, "ai-agent-status", runId=run)
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events = payload["data"]["events"]
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assert status == 200 and [e["tool"] for e in events if e["type"] == "tool"] == ["get_site_overview", "get_page_capabilities", "stage_set_field", "stage_create_news", "validate_changeset", "present_changeset"], events
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assert all(e.get("ok") for e in events if e["type"] == "tool") and "Updated by the agent" not in json.dumps(events) and "News body" not in json.dumps(events)
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later = get(owner, "ai-agent-status", runId=run, after=payload["data"]["cursor"] - 2)[1]["data"]["events"]
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assert len(later) == 2, "status returns only new events"
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audit = "\n".join(p.read_text() for p in (root / "content/ai-audit").glob("*.jsonl"))
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assert "agent-run-start" in audit and "agent-tool" in audit and "SECRET-GOAL-TEXT" not in audit and "Updated by the agent" not in audit, "audit has metadata, not content"
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# The package is still only a package
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assert (root / "content/pages/en_services__test.json").read_text() == before_pages and not list((root / "content/news").glob("*agent*")), "nothing is live before the review"
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# ---- Ownership -------------------------------------------------------------------------------------
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for action, fields in [("ai-agent-step", {"runId": run}), ("ai-agent-reply", {"runId": run, "message": "hi"}), ("ai-agent-cancel", {"runId": run}),
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("ai-agent-apply", {"id": cs_id, "previewHash": "x", "confirmed": "1"}), ("ai-agent-discard", {"id": cs_id}), ("ai-agent-undo", {"id": cs_id, "token": "x"}),
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("ai-agent-revalidate", {"id": cs_id})]:
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status, payload = post(other, action, **fields)
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assert not payload["success"] and status in (400, 404), (action, status, payload)
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assert get(other, "ai-agent-status", runId=run)[0] == 404 and get(other, "ai-agent-changeset", id=cs_id)[0] == 404, "another editor cannot even look"
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assert get(admin, "ai-agent-status", runId=run)[0] == 200, "an admin can"
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assert post(owner, "ai-agent-step", runId="../../x")[1]["message"] == "Invalid run", "malformed run ids are refused"
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# ---- Review and apply over the API ---------------------------------------------------------------------
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status, payload = get(owner, "ai-agent-changeset", id=cs_id)
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review = payload["data"]
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assert status == 200 and review["status"] == "ready" and review["canPublish"] is False and len(review["previewHash"]) == 64, review
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assert any(op["type"] == "set_field" for ops in review["targets"].values() for op in ops) and review["renderCheck"]["status"] == "passed"
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assert post(owner, "ai-agent-apply", id=cs_id, previewHash=review["previewHash"])[1]["message"] == "Confirmation required", "applying needs the explicit confirmation"
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status, payload = post(owner, "ai-agent-apply", id=cs_id, previewHash="0" * 64, confirmed="1")
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assert not payload["success"] and "changed after the preview" in payload["message"]
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status, payload = post(owner, "ai-agent-apply", id=cs_id, previewHash=review["previewHash"], confirmed="1")
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assert status == 200 and payload["data"]["status"] == "applied" and payload["data"]["undoToken"], payload
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assert "Updated by the agent" in (root / "content/pages/en_services__test.json").read_text()
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news = json.loads(next((root / "content/news").glob("*agent-news*.json")).read_text())
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assert news["hidden"] is True and news["title"] == "Agent news", "the news post is created hidden"
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status, payload = post(owner, "ai-agent-publish", id=cs_id, item=json.dumps({"kind": "news", "target": "news:" + news["id"]}))
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assert status == 403 and not payload["success"], "editors cannot publish by default"
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status, payload = post(owner, "ai-agent-undo", id=cs_id, token="wrong")
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assert not payload["success"], "a forged undo token is refused"
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# ---- Limits ---------------------------------------------------------------------------------------------
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configure(agent={"limits": {"maxTurns": 2}})
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queue[:] = [turn(call("get_site_overview", {}, f"t{i}")) for i in range(5)]
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state, states = run_to_end(owner, start(owner, "Loop forever"))
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assert state["status"] == "failed" and state["errorCode"] == "maxTurns" and state["usage"]["turns"] == 2, state
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configure(agent={"limits": {"maxToolFailures": 2}})
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bad = lambda i: turn(call("stage_set_field", {"target": "page:en_services__test", "path": "sections.0.nope", "value": "x"}, f"b{i}"))
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queue[:] = [bad(1), bad(2), bad(3)]
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state, states = run_to_end(owner, start(owner, "Keep failing"))
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assert state["status"] == "failed" and state["errorCode"] == "toolFailures" and "stage_set_field" in state["error"], state
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assert len(requests) and "not an editable field" in json.dumps(requests[-1]["messages"]), "the model was told why it failed"
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configure(agent={"limits": {"maxToolCalls": 2}})
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queue[:] = [turn(call("get_site_overview", {}, "a"), call("get_site_overview", {}, "b"), call("get_site_overview", {}, "c"))]
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state, _ = run_to_end(owner, start(owner, "Too many calls"))
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assert state["status"] == "failed" and state["errorCode"] == "maxToolCalls", state
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configure(agent={"limits": {"maxCostCentsPerRun": 1}}, ai={"pricing": {"inputCentsPerMillion": 1000000, "outputCentsPerMillion": 1000000, "imageCentsPerRequest": 5}})
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queue[:] = [turn(call("get_site_overview", {}, "x1")), turn(call("get_site_overview", {}, "x2"))]
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state, _ = run_to_end(owner, start(owner, "Costly"))
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assert state["status"] == "failed" and state["errorCode"] == "maxCost" and state["usage"]["turns"] == 1, state
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configure()
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run = start(owner, "Slow")
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record = root / "content/ai-agent/runs" / f"{run}.json"
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data = json.loads(record.read_text())
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data["roundStartedAt"] = int(time.time()) - 3600
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record.write_text(json.dumps(data))
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state, _ = run_to_end(owner, run)
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assert state["status"] == "failed" and state["errorCode"] == "timeout", state
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# ---- Questions, plain answers, replies --------------------------------------------------------------------
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queue[:] = [turn(call("ask_user", {"question": "Which date should the event have?"}, "q1"), call("get_site_overview", {}, "q2")),
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say("Understood, I will use that date.")]
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run = start(owner, "Create an event")
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state, _ = run_to_end(owner, run)
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assert state["status"] == "needs_input" and state["question"] == "Which date should the event have?", state
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status, payload = post(owner, "ai-agent-reply", runId=run, message="March 3rd, 18:00")
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assert payload["success"] and payload["data"]["status"] == "running", payload
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state, _ = run_to_end(owner, run)
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assert state["status"] == "needs_input" and state["question"] == "Understood, I will use that date.", "a plain answer waits for the user"
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sent = json.dumps(requests[-1]["messages"])
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assert "Skipped: the run is waiting for the user" in sent and "March 3rd, 18:00" in sent, "the skipped call and the reply are in the conversation"
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assert post(owner, "ai-agent-reply", runId=start(owner, "x" * 5), message="too early")[1]["success"] is False, "a running run takes no reply"
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# ---- Cancel, busy -------------------------------------------------------------------------------------------
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run = start(owner, "Cancel me")
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status, payload = post(owner, "ai-agent-cancel", runId=run)
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assert payload["success"] and payload["data"]["status"] == "cancelled"
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seen = len(requests)
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state = post(owner, "ai-agent-step", runId=run)[1]["data"]
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assert state["status"] == "cancelled" and len(requests) == seen, "a cancelled run does no more work"
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queue[:] = [(2.0, turn(call("get_site_overview", {}, "s1"))), turn(call("get_site_overview", {}, "s2"))]
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run = start(owner, "Busy test")
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results = []
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runner = Thread(target=lambda: results.append(("first", post(owner, "ai-agent-step", runId=run))))
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runner.start()
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time.sleep(0.6)
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second = post(admin, "ai-agent-step", runId=run)[1]["data"]
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runner.join()
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assert second["status"] == "busy", second
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assert results[0][1][1]["data"]["status"] == "running", "the first step finished normally"
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status, payload = post(owner, "ai-agent-cancel", runId=run)
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assert payload["success"]
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# ---- Rights ---------------------------------------------------------------------------------------------------
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configure(agent={"roles": {"editor": {"structural": False, "createNews": False}}})
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queue[:] = [say("ok")]
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run = start(owner, "Rights")
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run_to_end(owner, run)
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names = [t["function"]["name"] for t in requests[-1]["tools"]]
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assert "stage_add_section" not in names and "stage_add_list_item" not in names and "stage_create_news" not in names and "stage_set_field" in names, "tools without the right are not offered: " + ", ".join(names)
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assert "may not" in requests[-1]["messages"][0]["content"] and "create news posts" in requests[-1]["messages"][0]["content"], "the prompt says what the user may not do"
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queue[:] = [turn(call("stage_add_section", {"target": "page:en_services__test", "position": 0, "sectionType": "text"}, "r1")), say("done")]
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run = start(owner, "Try anyway")
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run_to_end(owner, run)
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assert "Unknown tool" in json.dumps(requests[-1]["messages"]), "a tool the user may not use is refused even if the model asks"
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queue[:] = [say("admin ok")]
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run = start(admin, "Admin")
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run_to_end(admin, run)
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assert "stage_add_section" in [t["function"]["name"] for t in requests[-1]["tools"]], "admins get every tool"
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configure()
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# ---- Private pages --------------------------------------------------------------------------------------------------
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queue[:] = [turn(call("read_content", {"target": "page:en_secret"}, "p1")), say("done")]
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run_to_end(owner, start(owner, "Summarise the pages"))
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assert "This page is private" in json.dumps(requests[-1]["messages"]) and "Confidential" not in json.dumps(requests[-1]["messages"]), "private pages stay out of the conversation"
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queue[:] = [turn(call("read_content", {"target": "page:en_secret"}, "p2")), say("done")]
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run_to_end(owner, start(owner, "Please check the secret page"))
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assert "Confidential" in json.dumps(requests[-1]["messages"]), "when the user names the page, it can be read"
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queue[:] = [turn(call("get_site_overview", {}, "p3")), say("done")]
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run_to_end(owner, start(owner, "List pages"))
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assert "Board minutes" not in json.dumps(requests[-1]["messages"]) and "en_secret" in json.dumps(requests[-1]["messages"]), "private page titles are not listed"
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# ---- Switches and limits at the door ---------------------------------------------------------------------------------
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configure(agent={"limits": {"runsPerHour": 2}})
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for _ in range(2):
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queue[:] = [say("x")]
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start(other, "Rate limit " + str(time.time()))
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status, payload = post(other, "ai-agent-start", goal="One too many")
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assert status == 429 and not payload["success"], (status, payload)
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configure()
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write_json(root / "content/ai-settings.json", {**json.loads((root / "content/ai-settings.json").read_text()), "agent": {"enabled": False}})
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status, payload = post(owner, "ai-agent-start", goal="Switched off")
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assert not payload["success"] and "switched off" in payload["message"], payload
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configure(ai={"provider": "kie", "baseUrl": "https://api.kie.ai", "apiKey": "k"})
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status, payload = post(owner, "ai-agent-start", goal="Wrong provider")
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assert not payload["success"] and "tool calling" in payload["message"], payload
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configure()
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write_json(root / "content/settings.json", {"modules": {"ai": False}})
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assert not post(owner, "ai-agent-start", goal="Module off")[1]["success"], "the AI module switch also switches the agent off"
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write_json(root / "content/settings.json", {"modules": {"ai": True}})
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status, _, _ = owner.request("/admin/api.php?action=ai-agent-start&goal=hello")
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|
assert status == 405, "writes are POST only"
|
|
status, _, _ = owner.request("/admin/api.php", {"action": "ai-agent-start", "goal": "no token"})
|
|
assert status == 403, "a missing CSRF token is refused"
|
|
print("PASS agent loop: status flow, one ledger request per turn, browser input ignored, limits, questions and replies, cancel, busy, rights, private pages, ownership, review/apply over the API")
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finally:
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site.close()
|
|
server.shutdown()
|
|
server.server_close()
|