fix(grok): implement official hook contract

elydora/plugins/grok_installation.py

@@ -0,0 +1,178 @@
+"""Transactional Grok hook and runtime installation."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+import json
+import os
+from typing import List, Optional
+
+from elydora._runtime_paths import resolve_agent_directory
+
+from ._managed_files import MAX_CONFIG_BYTES, MAX_SECRET_BYTES, MAX_SOURCE_BYTES
+from ._transaction import FileChange, file_change, source_change, write_changes
+from .base import InstallConfig
+from .grok_command import runtime_root, same_grok_path
+from .grok_contract import (
+    AGENT_KEY,
+    AUDIT_SCRIPT,
+    GUARD_SCRIPT,
+    GrokDocument,
+    RenderedGrokDocument,
+)
+from .grok_io import (
+    validate_api_origin,
+    validate_private_key,
+    validate_runtime_tree,
+)
+from .hook_template import generate_guard_script, generate_hook_script
+
+
+@dataclass(frozen=True)
+class GrokRuntimePaths:
+    agent_id: str
+    agent_directory: str
+    guard_path: str
+    audit_path: str
+
+
+def _runtime_config(config: InstallConfig, agent_id: str) -> dict:
+    value = {
+        "org_id": config.get("org_id", ""),
+        "agent_id": agent_id,
+        "kid": config.get("kid", ""),
+        "base_url": config.get("base_url", "https://api.elydora.com"),
+        "agent_name": AGENT_KEY,
+    }
+    token = config.get("token")
+    if token:
+        value["token"] = token
+    return value
+
+
+def _json_source(value: dict) -> str:
+    return json.dumps(value, indent=2) + "\n"
+
+
+def _agent_paths(config: InstallConfig) -> GrokRuntimePaths:
+    agent_id = config.get("agent_id", "")
+    if not agent_id:
+        raise ValueError("agent_id is required")
+    agent_directory = resolve_agent_directory(runtime_root(), agent_id)
+    guard_path = os.path.join(agent_directory, GUARD_SCRIPT)
+    audit_path = os.path.join(agent_directory, AUDIT_SCRIPT)
+    if not same_grok_path(config.get("guard_script_path", ""), guard_path):
+        raise ValueError(
+            "Elydora guard runtime must use the managed agent directory: "
+            f"{guard_path}"
+        )
+    return GrokRuntimePaths(agent_id, agent_directory, guard_path, audit_path)
+
+
+def _validate_install_config(config: InstallConfig) -> None:
+    for field in ("org_id", "agent_id", "kid", "private_key", "base_url"):
+        value = config.get(field)
+        if not isinstance(value, str) or not value:
+            raise ValueError(f"{field} is required")
+    if config.get("agent_name") != AGENT_KEY:
+        raise ValueError(f"Grok installation requires agent_name {AGENT_KEY}")
+    validate_private_key(config["private_key"])
+    validate_api_origin(config["base_url"])
+    if "token" in config:
+        token = config["token"]
+        if not isinstance(token, str) or not token:
+            raise ValueError("token must be a non-empty string when provided")
+    _agent_paths(config)
+
+
+def preflight_grok_installation(
+    config: InstallConfig, document: GrokDocument
+) -> GrokRuntimePaths:
+    if not document.config_path:
+        raise ValueError("Grok installation requires a hook configuration path")
+    _validate_install_config(config)
+    paths = _agent_paths(config)
+    validate_runtime_tree(paths.agent_directory, paths.agent_id)
+    return paths
+
+
+def _runtime_change(
+    file_path: str,
+    label: str,
+    next_source: str,
+    mode: int,
+    maximum_bytes: int = MAX_SOURCE_BYTES,
+) -> Optional[FileChange]:
+    return file_change(file_path, label, next_source, mode, maximum_bytes)
+
+
+def rendered_change(
+    rendered: RenderedGrokDocument,
+) -> Optional[FileChange]:
+    if not rendered.changed:
+        return None
+    return source_change(
+        rendered.document.config_path,
+        "Grok user hooks",
+        rendered.document.raw,
+        rendered.next_source,
+        0o600,
+        MAX_SOURCE_BYTES,
+    )
+
+
+def _present(changes: List[Optional[FileChange]]) -> List[FileChange]:
+    return [change for change in changes if change is not None]
+
+
+def prepare_grok_installation(
+    config: InstallConfig,
+    paths: GrokRuntimePaths,
+    rendered: RenderedGrokDocument,
+) -> List[FileChange]:
+    guard_script = generate_guard_script(
+        AGENT_KEY, paths.agent_id, deny_protocol="grok"
+    )
+    audit_script = generate_hook_script(
+        org_id=config.get("org_id", ""),
+        agent_id=paths.agent_id,
+        kid=config.get("kid", ""),
+        base_url=config.get("base_url", "https://api.elydora.com"),
+        native_payload=True,
+        agent_name=AGENT_KEY,
+    )
+    return _present([
+        _runtime_change(
+            paths.guard_path, "Elydora guard runtime", guard_script, 0o700
+        ),
+        _runtime_change(
+            os.path.join(paths.agent_directory, "config.json"),
+            "Elydora runtime config",
+            _json_source(_runtime_config(config, paths.agent_id)),
+            0o600,
+            MAX_CONFIG_BYTES,
+        ),
+        _runtime_change(
+            os.path.join(paths.agent_directory, "private.key"),
+            "Elydora private key",
+            config.get("private_key", ""),
+            0o600,
+            MAX_SECRET_BYTES,
+        ),
+        _runtime_change(
+            paths.audit_path, "Elydora audit runtime", audit_script, 0o700
+        ),
+        rendered_change(rendered),
+    ])
+
+
+def commit_grok_installation(changes: List[FileChange]) -> None:
+    write_changes(changes, "Install Grok hooks")
+
+
+def prepare_grok_uninstall(rendered: RenderedGrokDocument) -> List[FileChange]:
+    return _present([rendered_change(rendered)])
+
+
+def commit_grok_uninstall(changes: List[FileChange]) -> None:
+    write_changes(changes, "Uninstall Grok hooks")