fix(python): mirror official Gemini hooks

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ZacharyZhang-NY committed 2026-07-20 08:19:11 -04:00
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@@ -1,206 +1,101 @@
"""Gemini CLI plugin — merges AfterTool hook into ~/.gemini/settings.json."""
"""Gemini CLI native global user-hook integration."""
from __future__ import annotations
import json
import os
import sys
from ._file_io import write_json_atomic, write_text_atomic
from .base import AgentPlugin, InstallConfig, PluginStatus
from .hook_template import generate_hook_script
from .gemini_config import GeminiDocument, render_gemini_document
from .gemini_contract import (
AGENT_KEY,
AUDIT_HOOK_NAME,
GUARD_HOOK_NAME,
build_gemini_group,
disabled_managed_gemini_entries,
gemini_runtime_contracts,
managed_gemini_hooks_enabled,
)
from .gemini_installation import (
commit_gemini_installation,
preflight_gemini_installation,
prepare_gemini_installation,
)
from .gemini_io import (
gemini_runtime_files_exist,
read_gemini_document,
write_gemini_document,
)
SETTINGS_PATH = os.path.join(os.path.expanduser("~"), ".gemini", "settings.json")
ELYDORA_DIR = os.path.join(os.path.expanduser("~"), ".elydora")
def _require_enabled_hooks(document: GeminiDocument) -> None:
if not document.hook_controls.enabled:
raise ValueError(
"Gemini CLI hooks are disabled by hooksConfig.enabled: "
f"{document.file_path}"
)
disabled = disabled_managed_gemini_entries(document.hook_controls)
if disabled:
raise ValueError(
"Gemini CLI hooks are disabled by hooksConfig.disabled: "
+ ", ".join(disabled)
)
class GeminiPlugin(AgentPlugin):
"""Install/uninstall Elydora audit hook for Gemini CLI."""
"""Install Elydora into Gemini CLI's native user settings."""
@staticmethod
def _hook_path_for(agent_id: str) -> str:
return os.path.join(ELYDORA_DIR, agent_id, "hook.py")
manages_guard_runtime = True
def preflight_install(self, config: InstallConfig) -> None:
document = read_gemini_document()
_require_enabled_hooks(document)
preflight_gemini_installation(config, document)
def install(self, config: InstallConfig) -> None:
agent_id = config.get("agent_id", "")
agent_name = config.get("agent_name", "")
# Create per-agent directory
agent_dir = os.path.join(ELYDORA_DIR, agent_id)
os.makedirs(agent_dir, exist_ok=True)
# Write config.json
config_data = {
"org_id": config.get("org_id", ""),
"agent_id": agent_id,
"kid": config.get("kid", ""),
"base_url": config.get("base_url", "https://api.elydora.com"),
"token": config.get("token", ""),
"agent_name": agent_name,
}
config_path = os.path.join(agent_dir, "config.json")
write_json_atomic(
config_path,
config_data,
0o600,
"Elydora runtime config",
document = read_gemini_document()
_require_enabled_hooks(document)
paths = preflight_gemini_installation(config, document)
rendered = render_gemini_document(
document,
None,
{
"BeforeTool": build_gemini_group(
paths.guard_path, GUARD_HOOK_NAME
),
"AfterTool": build_gemini_group(
paths.audit_path, AUDIT_HOOK_NAME
),
},
)
# Write private key
private_key_path = os.path.join(agent_dir, "private.key")
write_text_atomic(
private_key_path,
config.get("private_key", ""),
0o600,
"Elydora private key",
)
script = generate_hook_script(
org_id=config.get("org_id", ""),
agent_id=agent_id,
kid=config.get("kid", ""),
base_url=config.get("base_url", "https://api.elydora.com"),
)
hook_path = self._hook_path_for(agent_id)
write_text_atomic(
hook_path,
script,
0o700,
"Elydora audit runtime",
)
guard_script_path = config.get("guard_script_path", "")
python_exe = sys.executable
settings = _load_json(SETTINGS_PATH)
hooks = settings.setdefault("hooks", {})
# --- BeforeTool (guard — freeze enforcement) ---
before_tool = hooks.setdefault("BeforeTool", [])
before_tool[:] = [h for h in before_tool if not _is_elydora_hook(h)]
if guard_script_path:
before_tool.append({
"hooks": [
{
"type": "command",
"command": f'"{python_exe}" {guard_script_path}',
}
],
})
# --- AfterTool (audit logging) ---
after_tool = hooks.setdefault("AfterTool", [])
after_tool[:] = [h for h in after_tool if not _is_elydora_hook(h)]
after_tool.append({
"hooks": [
{
"type": "command",
"command": hook_path,
}
],
})
_save_json(SETTINGS_PATH, settings)
print("Elydora hook installed for Gemini CLI.")
print(f" Hook script: {hook_path}")
print(f" Settings: {SETTINGS_PATH}")
changes = prepare_gemini_installation(config, paths, rendered)
commit_gemini_installation(changes)
print(f"Gemini CLI hooks installed at {document.file_path}")
print("Gemini CLI verification: run /hooks list.")
def uninstall(self, agent_id: str = "") -> None:
if os.path.exists(SETTINGS_PATH):
settings = _load_json(SETTINGS_PATH)
hooks = settings.get("hooks", {})
changed = False
# Remove BeforeTool entries
before_tool = hooks.get("BeforeTool", [])
before_filtered = [h for h in before_tool if not _is_elydora_hook(h, agent_id)]
if len(before_filtered) != len(before_tool):
hooks["BeforeTool"] = before_filtered
if not before_filtered:
del hooks["BeforeTool"]
changed = True
# Remove AfterTool entries
after_tool = hooks.get("AfterTool", [])
after_filtered = [h for h in after_tool if not _is_elydora_hook(h, agent_id)]
if len(after_filtered) != len(after_tool):
hooks["AfterTool"] = after_filtered
if not after_filtered:
del hooks["AfterTool"]
changed = True
if changed:
if not hooks:
del settings["hooks"]
_save_json(SETTINGS_PATH, settings)
# Hook script removal is handled by cli.py cmd_uninstall (rmtree of agent dir)
print("Elydora hook uninstalled from Gemini CLI.")
document = read_gemini_document()
write_gemini_document(
render_gemini_document(document, agent_id or None, {})
)
def status(self) -> PluginStatus:
# Scan ~/.elydora/*/hook.py for any installed hook
import glob as _glob
hook_pattern = os.path.join(ELYDORA_DIR, "*", "hook.py")
hook_files = _glob.glob(hook_pattern)
hook_exists = len(hook_files) > 0
settings_configured = False
if os.path.exists(SETTINGS_PATH):
settings = _load_json(SETTINGS_PATH)
hooks = settings.get("hooks", {})
before_tool = hooks.get("BeforeTool", [])
after_tool = hooks.get("AfterTool", [])
before_configured = any(_is_elydora_hook(h) for h in before_tool)
after_configured = any(_is_elydora_hook(h) for h in after_tool)
settings_configured = before_configured and after_configured
installed = hook_exists and settings_configured
document = read_gemini_document()
contracts = gemini_runtime_contracts(document.hooks)
controls_enabled = managed_gemini_hooks_enabled(
document.hook_controls
)
configured = controls_enabled and bool(contracts)
installed = configured and gemini_runtime_files_exist(contracts)
if installed:
details = f"Found {len(hook_files)} agent(s): {', '.join(hook_files)}"
elif hook_exists:
details = "Hook script exists but not configured in settings"
elif settings_configured:
details = "Configured in settings but hook script missing"
details = f"Config: {document.file_path}"
elif contracts and not controls_enabled:
details = f"Configured hooks are disabled: {document.file_path}"
elif contracts:
details = (
f"Configured at {document.file_path}; managed contract incomplete"
)
else:
details = "Not installed"
return PluginStatus(installed=installed, agent="gemini", details=details)
def _is_elydora_hook(entry: dict, agent_id: str = "") -> bool:
# Collect all command strings from the entry
commands: list[str] = []
inner_hooks = entry.get("hooks")
if isinstance(inner_hooks, list):
for hook in inner_hooks:
if isinstance(hook, dict) and isinstance(hook.get("command"), str):
commands.append(hook["command"])
else:
command = entry.get("command")
if isinstance(command, str):
commands.append(command)
for cmd in commands:
cmd_lower = cmd.lower()
if "elydora" not in cmd_lower:
continue
# If agent_id is specified, only match hooks for that specific agent
if agent_id and agent_id in cmd:
return True
if not agent_id:
return True
return False
def _load_json(path: str) -> dict:
if not os.path.exists(path):
return {}
with open(path, "r", encoding="utf-8") as f:
return json.load(f)
def _save_json(path: str, data: dict) -> None:
write_json_atomic(path, data, 0o600, "Gemini settings")
return PluginStatus(
installed=installed,
agent=AGENT_KEY,
details=details,
)
@@ -0,0 +1,206 @@
"""Gemini CLI hook command construction and exact runtime ownership."""
from __future__ import annotations
import base64
from dataclasses import dataclass
import ntpath
import os
import re
import sys
from typing import Optional, Tuple
@dataclass(frozen=True)
class GeminiRuntimeReference:
agent_id: str
script_path: str
def same_gemini_path(left: str, right: str) -> bool:
return os.path.normcase(os.path.abspath(left)) == os.path.normcase(
os.path.abspath(right)
)
def same_gemini_agent_id(left: str, right: str) -> bool:
return os.path.normcase(left) == os.path.normcase(right)
def _quote_posix(value: str) -> str:
return "'" + value.replace("'", "'\"'\"'") + "'"
def _quote_powershell(value: str) -> str:
return "'" + value.replace("'", "''") + "'"
def _windows_powershell_path() -> str:
configured = os.environ.get("SystemRoot")
system_root = (
configured
if configured
and ntpath.isabs(configured)
and re.search(r'["%\r\n]', configured) is None
else r"C:\Windows"
)
return ntpath.join(
system_root,
"System32",
"WindowsPowerShell",
"v1.0",
"powershell.exe",
)
def _windows_command(script_path: str) -> str:
source = (
f"& {_quote_powershell(sys.executable)} "
f"{_quote_powershell(script_path)}; exit $LASTEXITCODE"
)
encoded = base64.b64encode(source.encode("utf-16le")).decode("ascii")
return (
f"& {_quote_powershell(_windows_powershell_path())} "
"-NoLogo -NoProfile -NonInteractive -EncodedCommand "
f"{encoded}"
)
def build_gemini_command(script_path: str) -> str:
if not os.path.isabs(sys.executable) or not os.path.isabs(script_path):
raise ValueError(
"Gemini CLI hook commands require absolute executable and script paths"
)
if os.name == "nt":
return _windows_command(script_path)
return f"{_quote_posix(sys.executable)} {_quote_posix(script_path)}"
def _read_posix_argument(command: str, start: int) -> Optional[Tuple[str, int]]:
if start >= len(command) or command[start] != "'":
return None
apostrophe = "'\"'\"'"
value = ""
index = start + 1
while index < len(command):
if command.startswith(apostrophe, index):
value += "'"
index += len(apostrophe)
continue
if command[index] == "'":
return value, index + 1
value += command[index]
index += 1
return None
def _parse_posix_command(command: str) -> Optional[Tuple[str, str]]:
executable = _read_posix_argument(command, 0)
if executable is None or executable[1] >= len(command):
return None
if command[executable[1]] != " ":
return None
script = _read_posix_argument(command, executable[1] + 1)
if script is None or script[1] != len(command):
return None
return executable[0], script[0]
def _read_powershell_argument(
command: str, start: int
) -> Optional[Tuple[str, int]]:
if start >= len(command) or command[start] != "'":
return None
value = ""
index = start + 1
while index < len(command):
if command[index] != "'":
value += command[index]
index += 1
continue
if index + 1 < len(command) and command[index + 1] == "'":
value += "'"
index += 2
continue
return value, index + 1
return None
def _parse_powershell_source(source: str) -> Optional[Tuple[str, str]]:
if not source.startswith("& "):
return None
executable = _read_powershell_argument(source, 2)
if executable is None or executable[1] >= len(source):
return None
if source[executable[1]] != " ":
return None
script = _read_powershell_argument(source, executable[1] + 1)
if script is None or source[script[1] :] != "; exit $LASTEXITCODE":
return None
return executable[0], script[0]
def _parse_windows_command(command: str) -> Optional[Tuple[str, str]]:
if not command.startswith("& "):
return None
powershell = _read_powershell_argument(command, 2)
if (
powershell is None
or not ntpath.isabs(powershell[0])
or ntpath.basename(powershell[0]).lower() != "powershell.exe"
):
return None
prefix = " -NoLogo -NoProfile -NonInteractive -EncodedCommand "
if not command.startswith(prefix, powershell[1]):
return None
encoded = command[powershell[1] + len(prefix) :]
if re.fullmatch(r"[A-Za-z0-9+/]+={0,2}", encoded) is None:
return None
try:
payload = base64.b64decode(encoded, validate=True)
if base64.b64encode(payload).decode("ascii") != encoded:
return None
if len(payload) % 2:
return None
source = payload.decode("utf-16le")
except (ValueError, UnicodeDecodeError):
return None
return _parse_powershell_source(source)
def _parse_legacy_command(
command: str, script_name: str
) -> Optional[Tuple[str, str]]:
if script_name == "guard.py":
match = re.fullmatch(r'"([^"\r\n]+)" ([^\r\n]+)', command)
if match is None or not same_gemini_path(match.group(1), sys.executable):
return None
return match.group(1), match.group(2)
if "\r" in command or "\n" in command:
return None
return sys.executable, command
def gemini_runtime_reference(
command: str,
script_name: str,
include_legacy: bool = False,
) -> Optional[GeminiRuntimeReference]:
parsed = _parse_posix_command(command) or _parse_windows_command(command)
if parsed is None and include_legacy:
parsed = _parse_legacy_command(command, script_name)
if (
parsed is None
or not same_gemini_path(parsed[0], sys.executable)
or not os.path.isabs(parsed[1])
or os.path.basename(parsed[1]) != script_name
):
return None
agent_directory = os.path.dirname(parsed[1])
runtime_root = os.path.join(os.path.expanduser("~"), ".elydora")
if not same_gemini_path(os.path.dirname(agent_directory), runtime_root):
return None
agent_id = os.path.basename(agent_directory)
if agent_id in {"", ".", ".."}:
return None
return GeminiRuntimeReference(agent_id, parsed[1])
@@ -0,0 +1,181 @@
"""Gemini CLI JSONC parsing and source-preserving hook edits."""
from __future__ import annotations
from dataclasses import dataclass
from typing import Dict, Optional
from ._jsonc import JsoncEditor
from .gemini_contract import (
MANAGED_EVENTS,
GeminiHookControls,
GeminiHooks,
JsonObject,
managed_gemini_removals,
read_gemini_hook_controls,
read_gemini_hooks,
)
OWNED_FILE_MARKER = "// Managed by Elydora"
@dataclass(frozen=True)
class GeminiDocument:
file_path: str
exists: bool
raw: str
root: JsonObject
hooks: GeminiHooks
hook_controls: GeminiHookControls
has_hooks_container: bool
owned_file: bool
@dataclass(frozen=True)
class RenderedGeminiDocument:
document: GeminiDocument
changed: bool
next_source: Optional[str]
def _label(file_path: str) -> str:
return f"Gemini CLI user settings at {file_path}"
def parse_gemini_document(
*, exists: bool, file_path: str, raw: str
) -> GeminiDocument:
editor = JsoncEditor(
raw,
_label(file_path),
allow_trailing_commas=False,
)
if not isinstance(editor.value, dict):
raise ValueError(f"{_label(file_path)} must contain a JSON object")
root = editor.value
return GeminiDocument(
file_path=file_path,
exists=exists,
raw=raw,
root=root,
hooks=(read_gemini_hooks(root["hooks"]) if "hooks" in root else {}),
hook_controls=(
read_gemini_hook_controls(root["hooksConfig"])
if "hooksConfig" in root
else GeminiHookControls(True, ())
),
has_hooks_container="hooks" in root,
owned_file=raw.startswith(OWNED_FILE_MARKER),
)
def create_gemini_document(file_path: str) -> GeminiDocument:
return parse_gemini_document(
exists=False,
file_path=file_path,
raw=f"{OWNED_FILE_MARKER}\n{{}}\n",
)
def _current_document(
document: GeminiDocument, editor: JsoncEditor
) -> GeminiDocument:
return parse_gemini_document(
exists=document.exists,
file_path=document.file_path,
raw=editor.raw,
)
def _remove_managed(
editor: JsoncEditor,
document: GeminiDocument,
agent_id: Optional[str],
) -> None:
removals = managed_gemini_removals(document.hooks, agent_id)
for event in MANAGED_EVENTS:
event_removals = sorted(
(item for item in removals if item.event == event),
key=lambda item: item.group_index,
reverse=True,
)
for removal in event_removals:
group_path = ("hooks", event, removal.group_index)
if removal.remove_group:
editor.delete(group_path)
continue
for handler_index in sorted(
removal.handler_indexes, reverse=True
):
editor.delete((*group_path, "hooks", handler_index))
if event_removals:
current = _current_document(document, editor)
if event in current.hooks and not current.hooks[event]:
editor.delete(("hooks", event))
current = _current_document(document, editor)
if current.has_hooks_container and not current.hooks:
editor.delete(("hooks",))
def _append_group(
editor: JsoncEditor,
document: GeminiDocument,
event: str,
group: JsonObject,
) -> None:
current = _current_document(document, editor)
if not current.has_hooks_container:
editor.add_property((), "hooks", {event: [group]})
elif event in current.hooks:
editor.append(("hooks", event), group)
else:
editor.add_property(("hooks",), event, [group])
def _already_installed(
document: GeminiDocument, additions: Dict[str, JsonObject]
) -> bool:
if set(additions) != set(MANAGED_EVENTS):
return False
removals = managed_gemini_removals(document.hooks)
for event in MANAGED_EVENTS:
expected = additions[event]
event_removals = [item for item in removals if item.event == event]
exact_groups = [
group for group in document.hooks.get(event, []) if group == expected
]
if (
len(event_removals) != 1
or not event_removals[0].remove_group
or len(exact_groups) != 1
):
return False
return True
def render_gemini_document(
document: GeminiDocument,
agent_id: Optional[str],
additions: Dict[str, JsonObject],
) -> RenderedGeminiDocument:
if agent_id is None and _already_installed(document, additions):
return RenderedGeminiDocument(document, False, document.raw)
editor = JsoncEditor(
document.raw,
_label(document.file_path),
allow_trailing_commas=False,
)
_remove_managed(editor, document, agent_id)
for event in MANAGED_EVENTS:
group = additions.get(event)
if group is not None:
_append_group(editor, document, event, group)
current = _current_document(document, editor)
if not additions and document.owned_file and not current.root:
return RenderedGeminiDocument(document, True, None)
return RenderedGeminiDocument(
document,
editor.raw != document.raw,
editor.raw,
)
@@ -0,0 +1,344 @@
"""Gemini CLI hook schema, controls, and exact ownership rules."""
from __future__ import annotations
from dataclasses import dataclass
import math
import os
from typing import Any, Dict, List, Optional, Tuple
from .gemini_command import (
GeminiRuntimeReference,
build_gemini_command,
gemini_runtime_reference,
same_gemini_agent_id,
)
AGENT_KEY = "gemini"
CONFIG_FILE = "settings.json"
GUARD_SCRIPT = "guard.py"
AUDIT_SCRIPT = "hook.py"
GUARD_HOOK_NAME = "elydora-guard"
AUDIT_HOOK_NAME = "elydora-audit"
HOOK_TIMEOUT_MILLISECONDS = 10_000
MANAGED_EVENTS = ("BeforeTool", "AfterTool")
KNOWN_EVENTS = {
"BeforeTool",
"AfterTool",
"BeforeAgent",
"Notification",
"AfterAgent",
"SessionStart",
"SessionEnd",
"PreCompress",
"BeforeModel",
"AfterModel",
"BeforeToolSelection",
}
JsonObject = Dict[str, Any]
GeminiHooks = Dict[str, List[JsonObject]]
@dataclass(frozen=True)
class GeminiHookControls:
enabled: bool
disabled: Tuple[str, ...]
@dataclass(frozen=True)
class GeminiRuntimeContract:
agent_id: str
guard_path: str
audit_path: str
@dataclass(frozen=True)
class ManagedRemoval:
event: str
group_index: int
handler_indexes: Tuple[int, ...]
remove_group: bool
def elydora_dir() -> str:
return os.path.join(os.path.expanduser("~"), ".elydora")
def _optional_string(value: JsonObject, field: str, label: str) -> None:
if field in value and not isinstance(value[field], str):
raise ValueError(f'{label} field "{field}" must be a string')
def _validate_timeout(value: JsonObject, label: str) -> None:
if "timeout" not in value:
return
timeout = value["timeout"]
if (
isinstance(timeout, bool)
or not isinstance(timeout, (int, float))
or not math.isfinite(float(timeout))
or timeout < 0
):
raise ValueError(f"{label} timeout must be a non-negative finite number")
def _validate_environment(value: JsonObject, label: str) -> None:
if "env" not in value:
return
environment = value["env"]
if not isinstance(environment, dict) or any(
not isinstance(item, str) for item in environment.values()
):
raise ValueError(f"{label} env must map names to strings")
def _validate_handler(
value: Any, event: str, group_index: int, handler_index: int
) -> JsonObject:
label = (
f"Gemini CLI settings handler hooks.{event}[{group_index}]"
f".hooks[{handler_index}]"
)
if not isinstance(value, dict):
raise ValueError(f"{label} must be an object")
handler = dict(value)
if handler.get("type") != "command":
raise ValueError(
f'{label} has unsupported type "{handler.get("type")}"'
)
for field in ("name", "description", "source"):
_optional_string(handler, field, label)
_validate_timeout(handler, label)
_validate_environment(handler, label)
if not isinstance(handler.get("command"), str) or not handler["command"]:
raise ValueError(f"{label} requires a non-empty command")
return handler
def _validate_group(value: Any, event: str, index: int) -> JsonObject:
label = f"Gemini CLI settings group hooks.{event}[{index}]"
if not isinstance(value, dict):
raise ValueError(f"{label} must be an object")
group = dict(value)
if "matcher" in group and not isinstance(group["matcher"], str):
raise ValueError(f"{label} matcher must be a string")
if "sequential" in group and not isinstance(group["sequential"], bool):
raise ValueError(f"{label} sequential must be a boolean")
handlers = group.get("hooks")
if not isinstance(handlers, list):
raise ValueError(f"{label} must contain a hooks array")
group["hooks"] = [
_validate_handler(handler, event, index, handler_index)
for handler_index, handler in enumerate(handlers)
]
return group
def read_gemini_hooks(value: Any) -> GeminiHooks:
if not isinstance(value, dict):
raise ValueError('Gemini CLI settings field "hooks" must be an object')
hooks: GeminiHooks = {}
for event, groups in value.items():
if not isinstance(groups, list):
raise ValueError(
f'Gemini CLI settings field "hooks.{event}" must be an array'
)
hooks[event] = (
[
_validate_group(group, event, index)
for index, group in enumerate(groups)
]
if event in KNOWN_EVENTS
else list(groups)
)
return hooks
def read_gemini_hook_controls(value: Any) -> GeminiHookControls:
if not isinstance(value, dict):
raise ValueError(
'Gemini CLI settings field "hooksConfig" must be an object'
)
supported = {"enabled", "disabled", "notifications"}
extra = next((field for field in value if field not in supported), None)
if extra is not None:
raise ValueError(
"Gemini CLI settings field \"hooksConfig\" contains unsupported "
f'field "{extra}"'
)
if "enabled" in value and not isinstance(value["enabled"], bool):
raise ValueError(
'Gemini CLI settings field "hooksConfig.enabled" must be a boolean'
)
if "notifications" in value and not isinstance(
value["notifications"], bool
):
raise ValueError(
"Gemini CLI settings field \"hooksConfig.notifications\" must be "
"a boolean"
)
disabled = value.get("disabled", [])
if not isinstance(disabled, list) or any(
not isinstance(item, str) for item in disabled
):
raise ValueError(
"Gemini CLI settings field \"hooksConfig.disabled\" must be an "
"array of strings"
)
return GeminiHookControls(value.get("enabled") is not False, tuple(disabled))
def managed_gemini_hooks_enabled(controls: GeminiHookControls) -> bool:
return (
controls.enabled
and GUARD_HOOK_NAME not in controls.disabled
and AUDIT_HOOK_NAME not in controls.disabled
)
def disabled_managed_gemini_entries(
controls: GeminiHookControls,
) -> Tuple[str, ...]:
return tuple(
entry
for entry in controls.disabled
if entry in {GUARD_HOOK_NAME, AUDIT_HOOK_NAME}
or gemini_runtime_reference(entry, GUARD_SCRIPT, True) is not None
or gemini_runtime_reference(entry, AUDIT_SCRIPT, True) is not None
)
def build_gemini_group(script_path: str, name: str) -> JsonObject:
return {
"hooks": [{
"type": "command",
"name": name,
"command": build_gemini_command(script_path),
"timeout": HOOK_TIMEOUT_MILLISECONDS,
}]
}
def _exact_managed_group(group: JsonObject) -> bool:
return set(group) == {"hooks"}
def _current_managed_reference(
handler: JsonObject, script_name: str, hook_name: str
) -> Optional[GeminiRuntimeReference]:
if (
set(handler) == {"command", "name", "timeout", "type"}
and handler.get("type") == "command"
and handler.get("name") == hook_name
and handler.get("timeout") == HOOK_TIMEOUT_MILLISECONDS
and isinstance(handler.get("command"), str)
):
return gemini_runtime_reference(handler["command"], script_name)
return None
def _legacy_managed_reference(
handler: JsonObject, script_name: str
) -> Optional[GeminiRuntimeReference]:
if (
set(handler) == {"command", "type"}
and handler.get("type") == "command"
and isinstance(handler.get("command"), str)
):
return gemini_runtime_reference(handler["command"], script_name, True)
return None
def _managed_reference(
handler: JsonObject,
script_name: str,
hook_name: str,
include_legacy: bool,
) -> Optional[GeminiRuntimeReference]:
current = _current_managed_reference(handler, script_name, hook_name)
if current is not None or not include_legacy:
return current
return _legacy_managed_reference(handler, script_name)
def managed_gemini_removals(
hooks: GeminiHooks, agent_id: Optional[str] = None
) -> List[ManagedRemoval]:
removals = []
for event, script_name, hook_name in (
("BeforeTool", GUARD_SCRIPT, GUARD_HOOK_NAME),
("AfterTool", AUDIT_SCRIPT, AUDIT_HOOK_NAME),
):
for group_index, group in enumerate(hooks.get(event, [])):
handlers = group.get("hooks", [])
indexes = tuple(
index
for index, handler in enumerate(handlers)
if isinstance(handler, dict)
and (
reference := _managed_reference(
handler, script_name, hook_name, True
)
)
is not None
and (
agent_id is None
or same_gemini_agent_id(reference.agent_id, agent_id)
)
)
if indexes:
removals.append(
ManagedRemoval(
event,
group_index,
indexes,
_exact_managed_group(group)
and len(indexes) == len(handlers),
)
)
return removals
def _references_for_event(
groups: List[JsonObject], script_name: str, hook_name: str
) -> Dict[str, List[GeminiRuntimeReference]]:
result: Dict[str, List[GeminiRuntimeReference]] = {}
for group in groups:
if not _exact_managed_group(group):
continue
for handler in group["hooks"]:
reference = _current_managed_reference(
handler, script_name, hook_name
)
if reference is None:
continue
key = os.path.normcase(reference.agent_id)
result.setdefault(key, []).append(reference)
return result
def gemini_runtime_contracts(
hooks: GeminiHooks,
) -> List[GeminiRuntimeContract]:
guards = _references_for_event(
hooks.get("BeforeTool", []), GUARD_SCRIPT, GUARD_HOOK_NAME
)
audits = _references_for_event(
hooks.get("AfterTool", []), AUDIT_SCRIPT, AUDIT_HOOK_NAME
)
contracts = []
for key, guard in guards.items():
audit = audits.get(key, [])
if len(guard) != 1 or len(audit) != 1:
continue
contracts.append(
GeminiRuntimeContract(
guard[0].agent_id,
guard[0].script_path,
audit[0].script_path,
)
)
return contracts
@@ -0,0 +1,161 @@
"""Transactional Gemini CLI 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, write_changes
from .base import InstallConfig
from .gemini_command import same_gemini_path
from .gemini_config import GeminiDocument, RenderedGeminiDocument
from .gemini_contract import (
AGENT_KEY,
AUDIT_SCRIPT,
GUARD_SCRIPT,
elydora_dir,
)
from .gemini_io import (
rendered_change,
validate_api_origin,
validate_private_key,
validate_runtime_tree,
)
from .hook_template import generate_guard_script, generate_hook_script
@dataclass(frozen=True)
class GeminiRuntimePaths:
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) -> GeminiRuntimePaths:
agent_id = config.get("agent_id", "")
if not agent_id:
raise ValueError("agent_id is required")
agent_directory = resolve_agent_directory(elydora_dir(), agent_id)
guard_path = os.path.join(agent_directory, GUARD_SCRIPT)
audit_path = os.path.join(agent_directory, AUDIT_SCRIPT)
if not same_gemini_path(config.get("guard_script_path", ""), guard_path):
raise ValueError(
"Elydora guard runtime must use the managed agent directory: "
f"{guard_path}"
)
return GeminiRuntimePaths(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"Gemini CLI 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_gemini_installation(
config: InstallConfig, document: GeminiDocument
) -> GeminiRuntimePaths:
if not document.file_path:
raise ValueError("Gemini CLI installation requires a settings 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 _present(changes: List[Optional[FileChange]]) -> List[FileChange]:
return [change for change in changes if change is not None]
def prepare_gemini_installation(
config: InstallConfig,
paths: GeminiRuntimePaths,
rendered: RenderedGeminiDocument,
) -> List[FileChange]:
guard_script = generate_guard_script(
AGENT_KEY,
paths.agent_id,
success_output="{}\n",
)
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"),
success_output="{}\n",
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_gemini_installation(changes: List[FileChange]) -> None:
write_changes(changes, "Install Gemini CLI hooks")
+250
View File
@@ -0,0 +1,250 @@
"""Gemini CLI settings discovery and strict managed runtime inspection."""
from __future__ import annotations
import base64
import os
from typing import Any, List, Optional
import urllib.parse
from ._managed_files import (
MAX_CONFIG_BYTES,
MAX_SECRET_BYTES,
MAX_SOURCE_BYTES,
physical_directory_exists,
physical_file_exists,
read_physical_file,
)
from ._strict_json import JsonObject, parse_json_object
from ._transaction import FileChange, source_change, write_changes
from .gemini_command import same_gemini_agent_id, same_gemini_path
from .gemini_config import (
GeminiDocument,
RenderedGeminiDocument,
create_gemini_document,
parse_gemini_document,
)
from .gemini_contract import (
AGENT_KEY,
CONFIG_FILE,
GeminiRuntimeContract,
elydora_dir,
)
def gemini_configuration_directory() -> str:
configured_home = os.environ.get("GEMINI_CLI_HOME")
home = configured_home if configured_home else os.path.expanduser("~")
return os.path.join(home, ".gemini")
def gemini_settings_path() -> str:
return os.path.join(gemini_configuration_directory(), CONFIG_FILE)
def read_gemini_document() -> GeminiDocument:
file_path = gemini_settings_path()
physical_directory_exists(
os.path.dirname(file_path), "Gemini CLI configuration directory"
)
snapshot = read_physical_file(
file_path, "Gemini CLI user settings", MAX_SOURCE_BYTES
)
if snapshot is None:
return create_gemini_document(file_path)
return parse_gemini_document(
exists=True,
file_path=file_path,
raw=snapshot.contents,
)
def rendered_change(
rendered: RenderedGeminiDocument,
) -> Optional[FileChange]:
if not rendered.changed:
return None
return source_change(
rendered.document.file_path,
"Gemini CLI user settings",
rendered.document.raw if rendered.document.exists else None,
rendered.next_source,
0o600,
MAX_SOURCE_BYTES,
)
def write_gemini_document(rendered: RenderedGeminiDocument) -> None:
change = rendered_change(rendered)
if change is not None:
write_changes([change], "Uninstall Gemini CLI hooks")
def validate_api_origin(value: str, label: str = "base_url") -> None:
try:
parsed = urllib.parse.urlsplit(value)
hostname = parsed.hostname
parsed.port
except ValueError as error:
raise ValueError(f"{label} must be an absolute HTTP or HTTPS URL") from error
invalid_character = "\\" in value or any(
character.isspace() or ord(character) < 32 for character in value
)
if (
parsed.scheme not in ("http", "https")
or not parsed.netloc
or hostname is None
or invalid_character
):
raise ValueError(f"{label} must be an absolute HTTP or HTTPS URL")
if (
parsed.username is not None
or parsed.password is not None
or parsed.query
or parsed.fragment
):
raise ValueError(
f"{label} must exclude credentials, query parameters, and fragments"
)
def validate_private_key(value: str, label: str = "private_key") -> None:
try:
padded = value + "=" * ((4 - len(value) % 4) % 4)
seed = base64.b64decode(
padded.replace("-", "+").replace("_", "/"), validate=True
)
canonical = base64.urlsafe_b64encode(seed).rstrip(b"=").decode("ascii")
except (ValueError, UnicodeEncodeError) as error:
raise ValueError(
f"{label} must be a canonical 32-byte base64url value"
) from error
if len(seed) != 32 or canonical != value:
raise ValueError(f"{label} must be a canonical 32-byte base64url value")
def _require_non_empty_string(
value: Any, field: str, config_path: str
) -> str:
if not isinstance(value, str) or not value.strip():
raise ValueError(
f"Elydora runtime config {field} is invalid: {config_path}"
)
return value
def _validate_runtime_config(
config: JsonObject, expected_agent_id: str, config_path: str
) -> None:
supported = {"org_id", "agent_id", "kid", "base_url", "token", "agent_name"}
extra = next((key for key in config if key not in supported), None)
if extra is not None:
raise ValueError(
f'Elydora runtime config has unsupported field "{extra}": {config_path}'
)
_require_non_empty_string(config.get("org_id"), "org_id", config_path)
_require_non_empty_string(config.get("kid"), "kid", config_path)
agent_id = _require_non_empty_string(
config.get("agent_id"), "agent_id", config_path
)
if (
not same_gemini_agent_id(agent_id, expected_agent_id)
or config.get("agent_name") != AGENT_KEY
):
raise ValueError(
"Elydora runtime identity does not match Gemini CLI hooks: "
f"{config_path}"
)
if "token" in config:
_require_non_empty_string(config.get("token"), "token", config_path)
base_url = _require_non_empty_string(
config.get("base_url"), "base_url", config_path
)
validate_api_origin(base_url, "Elydora runtime config base_url")
def _read_runtime_config(file_path: str) -> Optional[JsonObject]:
snapshot = read_physical_file(
file_path, "Elydora runtime config", MAX_CONFIG_BYTES
)
if snapshot is None:
return None
return parse_json_object(
snapshot.contents, f"Elydora runtime config at {file_path}"
)
def validate_runtime_tree(agent_directory: str, agent_id: str) -> None:
root = elydora_dir()
if not physical_directory_exists(root, "Elydora runtime directory"):
return
if not physical_directory_exists(
agent_directory, "Elydora agent runtime directory"
):
return
config_path = os.path.join(agent_directory, "config.json")
config = _read_runtime_config(config_path)
artifacts = (
("private.key", "Elydora private key"),
("guard.py", "Elydora guard runtime"),
("hook.py", "Elydora audit runtime"),
("chain-state.json", "Elydora chain state"),
("status-cache.json", "Elydora status cache"),
("error.log", "Elydora error log"),
)
artifact_exists = any(
physical_file_exists(os.path.join(agent_directory, name), label)
for name, label in artifacts
)
if config is None:
if artifact_exists:
raise ValueError(
"Elydora runtime identity cannot be verified without config.json: "
f"{agent_directory}"
)
return
configured_id = config.get("agent_id")
if (
not isinstance(configured_id, str)
or not same_gemini_agent_id(configured_id, agent_id)
or config.get("agent_name") != AGENT_KEY
):
raise ValueError(
"Elydora runtime config identity does not match Gemini CLI agent "
f"{agent_id}: {config_path}"
)
def _runtime_contract_exists(contract: GeminiRuntimeContract) -> bool:
root = elydora_dir()
agent_directory = os.path.dirname(contract.guard_path)
if (
not same_gemini_path(os.path.dirname(agent_directory), root)
or not same_gemini_path(
contract.audit_path, os.path.join(agent_directory, "hook.py")
)
):
return False
if not physical_directory_exists(root, "Elydora runtime directory"):
return False
if not physical_directory_exists(
agent_directory, "Elydora agent runtime directory"
):
return False
config_path = os.path.join(agent_directory, "config.json")
key_path = os.path.join(agent_directory, "private.key")
config = _read_runtime_config(config_path)
key = read_physical_file(key_path, "Elydora private key", MAX_SECRET_BYTES)
guard = read_physical_file(contract.guard_path, "Elydora guard runtime")
audit = read_physical_file(contract.audit_path, "Elydora audit runtime")
if config is None or key is None or guard is None or audit is None:
return False
_validate_runtime_config(config, contract.agent_id, config_path)
validate_private_key(key.contents, "Elydora private key")
return bool(guard.contents) and bool(audit.contents)
def gemini_runtime_files_exist(
contracts: List[GeminiRuntimeContract],
) -> bool:
return any(_runtime_contract_exists(contract) for contract in contracts)
+2 -2
View File
@@ -43,8 +43,8 @@ SUPPORTED_AGENTS: Dict[str, Dict[str, str]] = {
},
"gemini": {
"name": "Gemini CLI",
"hook_event": "AfterTool",
"config_path": "~/.gemini/settings.json",
"hook_event": "BeforeTool/AfterTool",
"config_path": "$GEMINI_CLI_HOME/.gemini/settings.json",
},
"grok": {
"name": "Grok Build",