3bef6af241
- PLATFORM_URL: replace unreachable http://platform:8080 mesh-only default with Docker-aware detection (host.docker.internal in containers, localhost for local dev) across all workspace Python modules and the git-token-helper shell script. - WORKSPACE_ID: add fail-fast validation in main.py (SystemExit if empty) consistent with coordinator.py / a2a_cli.py patterns already in place. - INCIDENT_LOG.md: replace all 3 F1088 credential types with ***REDACTED*** (sk-cp- 2x, github_pat_ 2x, ADMIN_TOKEN base64 3x). Fixes #1124, #1333. Co-authored-by: Molecule AI Dev Lead <dev-lead@agents.moleculesai.app>
118 lines
4.3 KiB
Python
118 lines
4.3 KiB
Python
"""A2A protocol client — peer discovery, messaging, and workspace info.
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Shared constants (WORKSPACE_ID, PLATFORM_URL) live here so that
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a2a_tools and a2a_mcp_server can import them from a single place.
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"""
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import logging
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import os
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import uuid
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import httpx
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from platform_auth import auth_headers
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logger = logging.getLogger(__name__)
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_WORKSPACE_ID_raw = os.environ.get("WORKSPACE_ID")
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if not _WORKSPACE_ID_raw:
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raise RuntimeError("WORKSPACE_ID environment variable is required but not set")
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WORKSPACE_ID = _WORKSPACE_ID_raw
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if os.path.exists("/.dockerenv") or os.environ.get("DOCKER_VERSION"):
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PLATFORM_URL = os.environ.get("PLATFORM_URL", "http://host.docker.internal:8080")
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else:
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PLATFORM_URL = os.environ.get("PLATFORM_URL", "http://localhost:8080")
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# Cache workspace ID → name mappings (populated by list_peers calls)
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_peer_names: dict[str, str] = {}
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# Sentinel prefix for errors originating from send_a2a_message / child agents.
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# Used by delegate_task to distinguish real errors from normal response text.
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_A2A_ERROR_PREFIX = "[A2A_ERROR] "
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async def discover_peer(target_id: str) -> dict | None:
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"""Discover a peer workspace's URL via the platform registry."""
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async with httpx.AsyncClient(timeout=10.0) as client:
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try:
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resp = await client.get(
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f"{PLATFORM_URL}/registry/discover/{target_id}",
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headers={"X-Workspace-ID": WORKSPACE_ID, **auth_headers()},
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)
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if resp.status_code == 200:
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return resp.json()
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return None
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except Exception as e:
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logger.error(f"Discovery failed for {target_id}: {e}")
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return None
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async def send_a2a_message(target_url: str, message: str) -> str:
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"""Send an A2A message/send to a target workspace."""
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# Fix F (Cycle 5 / H2 — flagged 5 consecutive audits): timeout=None allowed
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# a hung upstream to block the agent indefinitely. Use a generous but bounded
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# timeout: 30s connect + 300s read (long enough for slow LLM responses).
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async with httpx.AsyncClient(
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timeout=httpx.Timeout(connect=30.0, read=300.0, write=30.0, pool=30.0)
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) as client:
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try:
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resp = await client.post(
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target_url,
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headers=auth_headers(),
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json={
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"jsonrpc": "2.0",
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"id": str(uuid.uuid4()),
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"method": "message/send",
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"params": {
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"message": {
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"role": "user",
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"messageId": str(uuid.uuid4()),
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"parts": [{"kind": "text", "text": message}],
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}
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},
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},
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)
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data = resp.json()
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if "result" in data:
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parts = data["result"].get("parts", [])
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text = parts[0].get("text", "") if parts else "(no response)"
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# Tag child-reported errors so the caller can detect them reliably
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if text.startswith("Agent error:"):
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return f"{_A2A_ERROR_PREFIX}{text}"
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return text
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elif "error" in data:
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return f"{_A2A_ERROR_PREFIX}{data['error'].get('message', 'unknown')}"
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return str(data)
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except Exception as e:
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return f"{_A2A_ERROR_PREFIX}{e}"
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async def get_peers() -> list[dict]:
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"""Get this workspace's peers from the platform registry."""
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async with httpx.AsyncClient(timeout=10.0) as client:
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try:
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resp = await client.get(
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f"{PLATFORM_URL}/registry/{WORKSPACE_ID}/peers",
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headers={"X-Workspace-ID": WORKSPACE_ID, **auth_headers()},
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)
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if resp.status_code == 200:
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return resp.json()
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return []
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except Exception:
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return []
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async def get_workspace_info() -> dict:
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"""Get this workspace's info from the platform."""
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async with httpx.AsyncClient(timeout=10.0) as client:
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try:
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resp = await client.get(
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f"{PLATFORM_URL}/workspaces/{WORKSPACE_ID}",
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headers=auth_headers(),
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)
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if resp.status_code == 200:
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return resp.json()
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return {"error": "not found"}
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except Exception as e:
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return {"error": str(e)}
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