Add Mika runtime bridge to Hermes image

This commit is contained in:
Felipe Domingues 2026-04-30 16:06:13 -03:00
parent e87c943ebd
commit 9722215b11
6 changed files with 1167 additions and 25 deletions

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"""Stable runtime bridge for integrations synced from Mika into Hermes."""
from __future__ import annotations
import json
from pathlib import Path
from typing import Any, Dict, Iterable, Tuple
from urllib import error, parse, request
from hermes_constants import get_hermes_home
SUPPORTED_SLUGS = ("notion", "todoist", "calcom")
MANAGED_INTEGRATIONS_ROOT = Path(get_hermes_home()) / "mika" / "integrations"
INTEGRATIONS_MANIFEST_PATH = MANAGED_INTEGRATIONS_ROOT / "manifest.json"
DEFAULT_NOTION_VERSION = "2022-06-28"
DEFAULT_CALCOM_VERSION = "2026-02-25"
MAX_RESPONSE_CHARS = 20000
USER_AGENT = "domco-mika-runtime/0.1"
INTEGRATIONS_STATUS_SCHEMA = {
"name": "mika_integrations_status",
"description": (
"Lists the Mika integrations currently synced into this Hermes runtime. "
"Use it to confirm whether Notion, Todoist, or Cal.com are connected "
"before making provider-specific API calls."
),
"parameters": {
"type": "object",
"properties": {
"slug": {
"type": "string",
"enum": list(SUPPORTED_SLUGS),
"description": "Optional provider slug to filter by.",
},
},
"additionalProperties": False,
},
}
NOTION_API_SCHEMA = {
"name": "mika_notion_api",
"description": (
"Makes authenticated requests against the connected Notion workspace. "
"Useful for search, retrieving pages, creating pages, updating pages, "
"querying databases, and appending block children. Authorization and "
"Notion-Version headers are injected automatically."
),
"parameters": {
"type": "object",
"properties": {
"method": {
"type": "string",
"enum": ["GET", "POST", "PATCH"],
"description": "HTTP method.",
},
"path": {
"type": "string",
"description": (
"Notion API path such as /v1/search, /v1/pages/<page_id>, "
"/v1/pages, or /v1/blocks/<block_id>/children."
),
},
"query": {
"type": "object",
"description": "Optional query parameters appended to the URL.",
"additionalProperties": True,
},
"body": {
"description": "Optional JSON request body for POST or PATCH requests.",
"anyOf": [{"type": "object"}, {"type": "array"}, {"type": "null"}],
},
},
"required": ["method", "path"],
"additionalProperties": False,
},
}
TODOIST_API_SCHEMA = {
"name": "mika_todoist_api",
"description": (
"Makes authenticated requests against Todoist REST API v2 for the "
"connected account. Useful for tasks, projects, sections, labels, and "
"comments. Authorization is injected automatically."
),
"parameters": {
"type": "object",
"properties": {
"method": {
"type": "string",
"enum": ["GET", "POST", "DELETE"],
"description": "HTTP method.",
},
"path": {
"type": "string",
"description": (
"Todoist REST v2 path such as /tasks, /tasks/<task_id>, "
"/tasks/<task_id>/close, /projects, /sections, or /comments."
),
},
"query": {
"type": "object",
"description": "Optional query parameters appended to the URL.",
"additionalProperties": True,
},
"body": {
"description": "Optional JSON request body for POST requests.",
"anyOf": [{"type": "object"}, {"type": "array"}, {"type": "null"}],
},
},
"required": ["method", "path"],
"additionalProperties": False,
},
}
CALCOM_API_SCHEMA = {
"name": "mika_calcom_api",
"description": (
"Makes authenticated requests against Cal.com API v2 for the connected "
"account. Useful for /v2/me, /v2/event-types, /v2/bookings, and related "
"resources. Authorization and cal-api-version headers are injected automatically."
),
"parameters": {
"type": "object",
"properties": {
"method": {
"type": "string",
"enum": ["GET", "POST", "PATCH"],
"description": "HTTP method.",
},
"path": {
"type": "string",
"description": (
"Cal.com API path such as /v2/me, /v2/event-types, "
"/v2/event-types/<id>, /v2/bookings, or /v2/bookings/<uid>."
),
},
"query": {
"type": "object",
"description": "Optional query parameters appended to the URL.",
"additionalProperties": True,
},
"body": {
"description": "Optional JSON request body for POST or PATCH requests.",
"anyOf": [{"type": "object"}, {"type": "array"}, {"type": "null"}],
},
},
"required": ["method", "path"],
"additionalProperties": False,
},
}
def _json_response(payload: dict[str, Any]) -> str:
return json.dumps(payload, ensure_ascii=False, indent=2, sort_keys=True)
def _load_manifest() -> dict[str, Any]:
if not INTEGRATIONS_MANIFEST_PATH.exists():
return {"integrations": []}
try:
return json.loads(INTEGRATIONS_MANIFEST_PATH.read_text(encoding="utf-8"))
except Exception as exc:
return {
"integrations": [],
"error": f"failed to read integrations manifest: {exc}",
}
def _normalize_slug(value: Any) -> str:
return str(value or "").strip().lower()
def _pick_active_integration(slug: str) -> Tuple[dict[str, Any] | None, str | None]:
manifest = _load_manifest()
manifest_integrations = manifest.get("integrations", [])
if not isinstance(manifest_integrations, list):
return None, "integrations manifest is malformed"
matches = [
item
for item in manifest_integrations
if isinstance(item, dict)
and _normalize_slug(item.get("slug")) == slug
]
if not matches:
return None, f"integration '{slug}' is not synced into this runtime"
active = [
item for item in matches
if str(item.get("status") or "").strip().lower() == "active"
]
if not active:
status = sorted({str(item.get("status") or "unknown") for item in matches})
return None, (
f"integration '{slug}' is synced but not active "
f"(current statuses: {', '.join(status)})"
)
chosen = sorted(
active,
key=lambda item: str(item.get("updated_at") or item.get("synced_at") or ""),
reverse=True,
)[0]
managed_file = str(chosen.get("managed_file") or "").strip()
if not managed_file:
return None, f"integration '{slug}' is missing managed_file metadata"
record_path = MANAGED_INTEGRATIONS_ROOT / managed_file
if not record_path.exists():
return None, (
f"integration '{slug}' expected runtime file '{managed_file}', "
"but it does not exist"
)
try:
record = json.loads(record_path.read_text(encoding="utf-8"))
except Exception as exc:
return None, f"failed to read integration runtime file for '{slug}': {exc}"
access_token = str(record.get("access_token") or "").strip()
if not access_token:
return None, f"integration '{slug}' has no access token in runtime storage"
return record, None
def _redact_integration(item: dict[str, Any]) -> dict[str, Any]:
redacted = dict(item)
redacted.pop("access_token", None)
redacted.pop("refresh_token", None)
return redacted
def _coerce_query_pairs(value: Any) -> list[tuple[str, str]]:
if not isinstance(value, dict):
return []
pairs: list[tuple[str, str]] = []
for key, raw_value in value.items():
if raw_value is None:
continue
if isinstance(raw_value, (list, tuple)):
for entry in raw_value:
pairs.append((str(key), _stringify_query_value(entry)))
continue
pairs.append((str(key), _stringify_query_value(raw_value)))
return pairs
def _stringify_query_value(value: Any) -> str:
if isinstance(value, bool):
return "true" if value else "false"
if value is None:
return ""
return str(value)
def _normalize_path(path: Any) -> str:
text = str(path or "").strip()
if not text:
raise ValueError("path is required")
if not text.startswith("/"):
text = f"/{text}"
return text
def _prepare_request(
*,
provider: str,
base_url: str,
allowed_methods: Iterable[str],
extra_headers: dict[str, str],
args: dict[str, Any],
) -> tuple[str, str, dict[str, str], bytes | None]:
method = str(args.get("method") or "").strip().upper()
if method not in set(allowed_methods):
raise ValueError(
f"method must be one of: {', '.join(sorted(set(allowed_methods)))}"
)
path = _normalize_path(args.get("path"))
query_pairs = _coerce_query_pairs(args.get("query"))
url = f"{base_url.rstrip('/')}{path}"
if query_pairs:
url = f"{url}?{parse.urlencode(query_pairs, doseq=True)}"
body = args.get("body")
payload = None
headers = {
"Accept": "application/json",
"User-Agent": USER_AGENT,
**extra_headers,
}
if body is not None:
if method == "GET":
raise ValueError(f"{provider} GET requests do not accept a JSON body")
payload = json.dumps(body, ensure_ascii=False).encode("utf-8")
headers["Content-Type"] = "application/json"
return method, url, headers, payload
def _truncate_text(text: str, limit: int = MAX_RESPONSE_CHARS) -> tuple[str, bool]:
if len(text) <= limit:
return text, False
return text[:limit], True
def _decode_response_body(content_type: str, raw_body: bytes) -> tuple[Any, bool]:
if not raw_body:
return None, False
text = raw_body.decode("utf-8", errors="replace")
text, truncated = _truncate_text(text)
if "application/json" in content_type.lower():
try:
return json.loads(text), truncated
except Exception:
return text, truncated
return text, truncated
def _perform_request(
*,
provider: str,
integration: dict[str, Any],
base_url: str,
allowed_methods: Iterable[str],
extra_headers: dict[str, str],
args: dict[str, Any],
) -> str:
try:
method, url, headers, payload = _prepare_request(
provider=provider,
base_url=base_url,
allowed_methods=allowed_methods,
extra_headers=extra_headers,
args=args,
)
except ValueError as exc:
return _json_response({
"ok": False,
"provider": provider,
"error": str(exc),
})
req = request.Request(
url=url,
data=payload,
method=method,
headers=headers,
)
try:
with request.urlopen(req, timeout=45) as response:
raw_body = response.read()
content_type = response.headers.get("Content-Type", "")
decoded_body, truncated = _decode_response_body(content_type, raw_body)
return _json_response({
"ok": True,
"provider": provider,
"integration": {
"slug": integration.get("slug"),
"name": integration.get("name"),
"status": integration.get("status"),
"connected_account_name": integration.get("connected_account_name"),
"connected_account_email": integration.get("connected_account_email"),
},
"request": {
"method": method,
"url": url,
},
"response": {
"status": response.status,
"content_type": content_type,
"truncated": truncated,
"body": decoded_body,
},
})
except error.HTTPError as exc:
raw_body = exc.read()
content_type = exc.headers.get("Content-Type", "") if exc.headers else ""
decoded_body, truncated = _decode_response_body(content_type, raw_body)
return _json_response({
"ok": False,
"provider": provider,
"integration": {
"slug": integration.get("slug"),
"name": integration.get("name"),
"status": integration.get("status"),
"connected_account_name": integration.get("connected_account_name"),
"connected_account_email": integration.get("connected_account_email"),
},
"request": {
"method": method,
"url": url,
},
"response": {
"status": exc.code,
"content_type": content_type,
"truncated": truncated,
"body": decoded_body,
},
})
except Exception as exc:
return _json_response({
"ok": False,
"provider": provider,
"request": {
"method": method,
"url": url,
},
"error": str(exc),
})
def handle_integrations_status(args: dict[str, Any], **_: Any) -> str:
slug = _normalize_slug(args.get("slug"))
manifest = _load_manifest()
integrations = manifest.get("integrations", [])
if not isinstance(integrations, list):
return _json_response({
"ok": False,
"error": "integrations manifest is malformed",
})
filtered = [
_redact_integration(item)
for item in integrations
if isinstance(item, dict)
and (not slug or _normalize_slug(item.get("slug")) == slug)
]
return _json_response({
"ok": True,
"agent_instance_id": manifest.get("agent_instance_id"),
"user_id": manifest.get("user_id"),
"synced_at": manifest.get("synced_at"),
"integrations": filtered,
"available_tools": {
"notion": "mika_notion_api",
"todoist": "mika_todoist_api",
"calcom": "mika_calcom_api",
},
})
def handle_notion_api(args: dict[str, Any], **_: Any) -> str:
integration, err = _pick_active_integration("notion")
if err:
return _json_response({"ok": False, "provider": "notion", "error": err})
return _perform_request(
provider="notion",
integration=integration,
base_url="https://api.notion.com",
allowed_methods=("GET", "POST", "PATCH"),
extra_headers={
"Authorization": f"Bearer {integration['access_token']}",
"Notion-Version": str(
integration.get("notion_version")
or DEFAULT_NOTION_VERSION
),
},
args=args,
)
def handle_todoist_api(args: dict[str, Any], **_: Any) -> str:
integration, err = _pick_active_integration("todoist")
if err:
return _json_response({"ok": False, "provider": "todoist", "error": err})
return _perform_request(
provider="todoist",
integration=integration,
base_url="https://api.todoist.com/rest/v2",
allowed_methods=("GET", "POST", "DELETE"),
extra_headers={
"Authorization": f"Bearer {integration['access_token']}",
},
args=args,
)
def handle_calcom_api(args: dict[str, Any], **_: Any) -> str:
integration, err = _pick_active_integration("calcom")
if err:
return _json_response({"ok": False, "provider": "calcom", "error": err})
return _perform_request(
provider="calcom",
integration=integration,
base_url="https://api.cal.com",
allowed_methods=("GET", "POST", "PATCH"),
extra_headers={
"Authorization": f"Bearer {integration['access_token']}",
"cal-api-version": str(
integration.get("cal_api_version")
or DEFAULT_CALCOM_VERSION
),
},
args=args,
)