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Make safe_pickle_load function. #17121

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Make safe_pickle_load function. #17121

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20 changes: 18 additions & 2 deletions ...ons/indices/llama-index-indices-managed-bge-m3/llama_index/indices/managed/bge_m3/base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,11 +7,27 @@

from llama_index.core.base.base_retriever import BaseRetriever
from llama_index.core.data_structs.data_structs import IndexDict
from llama_index.core.indices.base import BaseIndex, IndexNode
from llama_index.core.indices.base import BaseIndex, IndexNode
from llama_index.core.schema import BaseNode, NodeWithScore
from llama_index.core.storage.docstore.types import RefDocInfo
from llama_index.core.storage.storage_context import StorageContext

class SafeUnpickler(pickle.Unpickler):
ALLOWED_CLASSES = {
"builtins": {"list", "dict", "str", "int", "float", "tuple", "set"},
"numpy.core.multiarray": {"_reconstruct", "scalar"},
"numpy": {"ndarray", "dtype"},
"collections": {"defaultdict"}
}

def find_class(self, module, name):
if module in self.ALLOWED_CLASSES and name in self.ALLOWED_CLASSES[module]:
return super().find_class(module, name)
raise pickle.UnpicklingError(f"Unauthorized class: {module}.{name}")

def safe_pickle_load(file):
return SafeUnpickler(file).load()


class BGEM3Index(BaseIndex[IndexDict]):
"""
Expand Down Expand Up @@ -153,7 +169,7 @@ def load_from_disk(
int(k): v for k, v in index.index_struct.nodes_dict.items()
}
index._docs_pos_to_node_id = docs_pos_to_node_id
index._multi_embed_store = pickle.load(
index._multi_embed_store = safe_pickle_load(
open(Path(persist_dir) / "multi_embed_store.pkl", "rb")
)
return index
Expand Down