WangShen007
54b949b392
The upstream project name is gone from code, assets, docs and build
output: brand strings, domains (replypier.site and its app/api/docs/help
subdomains), env prefixes, image and network names, the widget's public
JS API (window.ReplyPier, replypierId/BaseUrl/Config/Token), CSS tokens
(--rp-*), file and directory names, and the WordPress plugin package.
- widget loader is now webclient/replypier.min.js; both bundles rebuilt
from source (backend/assets/widget.{js,css}, frontend/public/webclient)
- NOTICE, llms.txt, CONTRIBUTING, HELP_CENTER_INFRA and config.dev.js
rewritten rather than string-swapped; the demo config no longer ships
the previous vendor's Firebase/Razorpay/Google keys
- new migration replypier_ai_model_001 adds REPLYPIER to the managed
AIModelType and rewrites pre-rename rows
- local compose project, database, role and volume renamed; LOCAL_DEPLOY
documents carrying the old local data over
76 lines
3.1 KiB
Python
76 lines
3.1 KiB
Python
"""
|
|
Copyright 2024-2026 ReplyPier
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
"""
|
|
|
|
# Runtime guard for the pinned agno==1.7.6 (GHSA-77rh-m34w-rv36, fixed
|
|
# upstream in 2.3.24). Remove this module with the agno 2.x upgrade.
|
|
#
|
|
# agno turns a user-input field's type name back into a Python type by calling
|
|
# eval() on a string it did not produce: in agno.models.base the string is the
|
|
# `field_type` of a `get_user_input` tool call, i.e. text the model wrote, and
|
|
# in agno.tools.function it is read back from a stored run response. A tool
|
|
# named get_user_input is all it takes to reach that eval, and MCP connectors
|
|
# register tools under whatever name the server advertises, so a hostile or
|
|
# prompt-injected connector could run arbitrary Python inside the backend.
|
|
#
|
|
# Both modules look `eval` up as a global name, so binding a module-level `eval`
|
|
# shadows the builtin for those two modules only. The replacement never
|
|
# evaluates anything: it maps a bare builtin type name to the type and refuses
|
|
# everything else.
|
|
|
|
import agno.models.base
|
|
import agno.tools.function
|
|
|
|
from app.core.logger import get_logger
|
|
|
|
logger = get_logger(__name__)
|
|
|
|
# Every type UserInputField.to_dict can emit (it writes type.__name__). Nothing
|
|
# else was ever a valid field type, so refusing it changes no legitimate path.
|
|
_FIELD_TYPES = {t.__name__: t for t in (str, int, float, bool, list, dict, tuple, set, bytes)}
|
|
|
|
_GUARDED_MODULES = (agno.models.base, agno.tools.function)
|
|
|
|
|
|
class UnsafeFieldTypeError(NameError):
|
|
"""Raised for any field_type that is not a plain builtin type name.
|
|
|
|
A NameError on purpose: agno's model loop catches (NameError, SyntaxError)
|
|
around its eval and falls back to str, so a rejected value degrades exactly
|
|
the way an unknown name always did — the run continues, nothing executes.
|
|
"""
|
|
|
|
|
|
def resolve_field_type(expr, *_args, **_kwargs):
|
|
"""Drop-in for eval() that only ever maps a type name to the type.
|
|
|
|
Accepts eval's optional globals/locals so any call shape agno uses works.
|
|
"""
|
|
if isinstance(expr, str):
|
|
field_type = _FIELD_TYPES.get(expr.strip())
|
|
if field_type is not None:
|
|
return field_type
|
|
# agno swallows the error and carries on with str, so without this line a
|
|
# blocked payload would leave no trace at all. Nothing legitimate reaches
|
|
# here, which makes every one of these worth seeing.
|
|
logger.warning(f"Blocked an unsafe user-input field type: {expr!r}")
|
|
raise UnsafeFieldTypeError(f"Unsupported user-input field type: {expr!r}")
|
|
|
|
|
|
def install_eval_guard() -> None:
|
|
"""Shadow eval in the agno modules that hand model-supplied text to it."""
|
|
for module in _GUARDED_MODULES:
|
|
module.eval = resolve_field_type
|