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#
# Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
# 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.
#
import re
import os
from flask_login import current_user
from peewee import fn
from api.db import FileType, KNOWLEDGEBASE_FOLDER_NAME, FileSource, ParserType
from api.db.db_models import DB, File2Document, Knowledgebase
from api.db.db_models import File, Document
from api.db.services import duplicate_name
from api.db.services.common_service import CommonService
from api.db.services.document_service import DocumentService
from api.db.services.file2document_service import File2DocumentService
from api.utils import get_uuid
from api.utils.file_utils import filename_type, thumbnail
from rag.utils.minio_conn import MINIO
class FileService(CommonService):
model = File
@classmethod
@DB.connection_context()
def get_by_pf_id(cls, tenant_id, pf_id, page_number, items_per_page,
orderby, desc, keywords):
if keywords:
files = cls.model.select().where(
(cls.model.tenant_id == tenant_id),
(cls.model.parent_id == pf_id),
(fn.LOWER(cls.model.name).contains(keywords.lower())),
~(cls.model.id == pf_id)
)
else:
files = cls.model.select().where((cls.model.tenant_id == tenant_id),
(cls.model.parent_id == pf_id),
~(cls.model.id == pf_id)
)
count = files.count()
if desc:
files = files.order_by(cls.model.getter_by(orderby).desc())
else:
files = files.order_by(cls.model.getter_by(orderby).asc())
files = files.paginate(page_number, items_per_page)
res_files = list(files.dicts())
for file in res_files:
if file["type"] == FileType.FOLDER.value:
file["size"] = cls.get_folder_size(file["id"])
file['kbs_info'] = []
children = list(cls.model.select().where(
(cls.model.tenant_id == tenant_id),
(cls.model.parent_id == file["id"]),
~(cls.model.id == file["id"]),
).dicts())
file["has_child_folder"] = any(value["type"] == FileType.FOLDER.value for value in children)
continue
kbs_info = cls.get_kb_id_by_file_id(file['id'])
file['kbs_info'] = kbs_info
return res_files, count
@classmethod
@DB.connection_context()
def get_kb_id_by_file_id(cls, file_id):
kbs = (cls.model.select(*[Knowledgebase.id, Knowledgebase.name])
.join(File2Document, on=(File2Document.file_id == file_id))
.join(Document, on=(File2Document.document_id == Document.id))
.join(Knowledgebase, on=(Knowledgebase.id == Document.kb_id))
.where(cls.model.id == file_id))
if not kbs: return []
kbs_info_list = []
for kb in list(kbs.dicts()):
kbs_info_list.append({"kb_id": kb['id'], "kb_name": kb['name']})
return kbs_info_list
@classmethod
@DB.connection_context()
def get_by_pf_id_name(cls, id, name):
file = cls.model.select().where((cls.model.parent_id == id) & (cls.model.name == name))
if file.count():
e, file = cls.get_by_id(file[0].id)
if not e:
raise RuntimeError("Database error (File retrieval)!")
return file
return None
@classmethod
@DB.connection_context()
def get_id_list_by_id(cls, id, name, count, res):
if count < len(name):
file = cls.get_by_pf_id_name(id, name[count])
if file:
res.append(file.id)
return cls.get_id_list_by_id(file.id, name, count + 1, res)
else:
return res
else:
return res
@classmethod
@DB.connection_context()
def get_all_innermost_file_ids(cls, folder_id, result_ids):
subfolders = cls.model.select().where(cls.model.parent_id == folder_id)
if subfolders.exists():
for subfolder in subfolders:
cls.get_all_innermost_file_ids(subfolder.id, result_ids)
else:
result_ids.append(folder_id)
return result_ids
@classmethod
@DB.connection_context()
def create_folder(cls, file, parent_id, name, count):
if count > len(name) - 2:
return file
else:
file = cls.insert({
"id": get_uuid(),
"parent_id": parent_id,
"tenant_id": current_user.id,
"created_by": current_user.id,
"name": name[count],
"location": "",
"size": 0,
"type": FileType.FOLDER.value
})
return cls.create_folder(file, file.id, name, count + 1)
@classmethod
@DB.connection_context()
def is_parent_folder_exist(cls, parent_id):
parent_files = cls.model.select().where(cls.model.id == parent_id)
if parent_files.count():
return True
cls.delete_folder_by_pf_id(parent_id)
return False
@classmethod
@DB.connection_context()
def get_root_folder(cls, tenant_id):
for file in cls.model.select().where((cls.model.tenant_id == tenant_id),
(cls.model.parent_id == cls.model.id)
):
return file.to_dict()
file_id = get_uuid()
file = {
"id": file_id,
"parent_id": file_id,
"tenant_id": tenant_id,
"created_by": tenant_id,
"name": "/",
"type": FileType.FOLDER.value,
"size": 0,
"location": "",
}
cls.save(**file)
return file
@classmethod
@DB.connection_context()
def get_kb_folder(cls, tenant_id):
for root in cls.model.select().where(
(cls.model.tenant_id == tenant_id), (cls.model.parent_id == cls.model.id)):
for folder in cls.model.select().where(
(cls.model.tenant_id == tenant_id), (cls.model.parent_id == root.id),
(cls.model.name == KNOWLEDGEBASE_FOLDER_NAME)):
return folder.to_dict()
assert False, "Can't find the KB folder. Database init error."
@classmethod
@DB.connection_context()
def new_a_file_from_kb(cls, tenant_id, name, parent_id, ty=FileType.FOLDER.value, size=0, location=""):
for file in cls.query(tenant_id=tenant_id, parent_id=parent_id, name=name):
return file.to_dict()
file = {
"id": get_uuid(),
"parent_id": parent_id,
"tenant_id": tenant_id,
"created_by": tenant_id,
"name": name,
"type": ty,
"size": size,
"location": location,
"source_type": FileSource.KNOWLEDGEBASE
}
cls.save(**file)
return file
@classmethod
@DB.connection_context()
def init_knowledgebase_docs(cls, root_id, tenant_id):
for _ in cls.model.select().where((cls.model.name == KNOWLEDGEBASE_FOLDER_NAME)\
& (cls.model.parent_id == root_id)):
return
folder = cls.new_a_file_from_kb(tenant_id, KNOWLEDGEBASE_FOLDER_NAME, root_id)
for kb in Knowledgebase.select(*[Knowledgebase.id, Knowledgebase.name]).where(Knowledgebase.tenant_id==tenant_id):
kb_folder = cls.new_a_file_from_kb(tenant_id, kb.name, folder["id"])
for doc in DocumentService.query(kb_id=kb.id):
FileService.add_file_from_kb(doc.to_dict(), kb_folder["id"], tenant_id)
@classmethod
@DB.connection_context()
def get_parent_folder(cls, file_id):
file = cls.model.select().where(cls.model.id == file_id)
if file.count():
e, file = cls.get_by_id(file[0].parent_id)
if not e:
raise RuntimeError("Database error (File retrieval)!")
else:
raise RuntimeError("Database error (File doesn't exist)!")
return file
@classmethod
@DB.connection_context()
def get_all_parent_folders(cls, start_id):
parent_folders = []
current_id = start_id
while current_id:
e, file = cls.get_by_id(current_id)
if file.parent_id != file.id and e:
parent_folders.append(file)
current_id = file.parent_id
else:
parent_folders.append(file)
break
return parent_folders
@classmethod
@DB.connection_context()
def insert(cls, file):
if not cls.save(**file):
raise RuntimeError("Database error (File)!")
e, file = cls.get_by_id(file["id"])
if not e:
raise RuntimeError("Database error (File retrieval)!")
return file
@classmethod
@DB.connection_context()
def delete(cls, file):
return cls.delete_by_id(file.id)
@classmethod
@DB.connection_context()
def delete_by_pf_id(cls, folder_id):
return cls.model.delete().where(cls.model.parent_id == folder_id).execute()
@classmethod
@DB.connection_context()
def delete_folder_by_pf_id(cls, user_id, folder_id):
try:
files = cls.model.select().where((cls.model.tenant_id == user_id)
& (cls.model.parent_id == folder_id))
for file in files:
cls.delete_folder_by_pf_id(user_id, file.id)
return cls.model.delete().where((cls.model.tenant_id == user_id)
& (cls.model.id == folder_id)).execute(),
except Exception as e:
print(e)
raise RuntimeError("Database error (File retrieval)!")
@classmethod
@DB.connection_context()
def get_file_count(cls, tenant_id):
files = cls.model.select(cls.model.id).where(cls.model.tenant_id == tenant_id)
return len(files)
@classmethod
@DB.connection_context()
def get_folder_size(cls, folder_id):
size = 0
def dfs(parent_id):
nonlocal size
for f in cls.model.select(*[cls.model.id, cls.model.size, cls.model.type]).where(
cls.model.parent_id == parent_id, cls.model.id != parent_id):
size += f.size
if f.type == FileType.FOLDER.value:
dfs(f.id)
dfs(folder_id)
return size
@classmethod
@DB.connection_context()
def add_file_from_kb(cls, doc, kb_folder_id, tenant_id):
for _ in File2DocumentService.get_by_document_id(doc["id"]): return
file = {
"id": get_uuid(),
"parent_id": kb_folder_id,
"tenant_id": tenant_id,
"created_by": tenant_id,
"name": doc["name"],
"type": doc["type"],
"size": doc["size"],
"location": doc["location"],
"source_type": FileSource.KNOWLEDGEBASE
}
cls.save(**file)
File2DocumentService.save(**{"id": get_uuid(), "file_id": file["id"], "document_id": doc["id"]})
@classmethod
@DB.connection_context()
def move_file(cls, file_ids, folder_id):
try:
cls.filter_update((cls.model.id << file_ids, ), { 'parent_id': folder_id })
except Exception as e:
print(e)
raise RuntimeError("Database error (File move)!")
@classmethod
@DB.connection_context()
def upload_document(self, kb, file_objs):
root_folder = self.get_root_folder(current_user.id)
pf_id = root_folder["id"]
self.init_knowledgebase_docs(pf_id, current_user.id)
kb_root_folder = self.get_kb_folder(current_user.id)
kb_folder = self.new_a_file_from_kb(kb.tenant_id, kb.name, kb_root_folder["id"])
err, files = [], []
for file in file_objs:
try:
MAX_FILE_NUM_PER_USER = int(os.environ.get('MAX_FILE_NUM_PER_USER', 0))
if MAX_FILE_NUM_PER_USER > 0 and DocumentService.get_doc_count(kb.tenant_id) >= MAX_FILE_NUM_PER_USER:
raise RuntimeError("Exceed the maximum file number of a free user!")
filename = duplicate_name(
DocumentService.query,
name=file.filename,
kb_id=kb.id)
filetype = filename_type(filename)
if filetype == FileType.OTHER.value:
raise RuntimeError("This type of file has not been supported yet!")
location = filename
while MINIO.obj_exist(kb.id, location):
location += "_"
blob = file.read()
MINIO.put(kb.id, location, blob)
doc = {
"id": get_uuid(),
"kb_id": kb.id,
"parser_id": kb.parser_id,
"parser_config": kb.parser_config,
"created_by": current_user.id,
"type": filetype,
"name": filename,
"location": location,
"size": len(blob),
"thumbnail": thumbnail(filename, blob)
}
if doc["type"] == FileType.VISUAL:
doc["parser_id"] = ParserType.PICTURE.value
if doc["type"] == FileType.AURAL:
doc["parser_id"] = ParserType.AUDIO.value
if re.search(r"\.(ppt|pptx|pages)$", filename):
doc["parser_id"] = ParserType.PRESENTATION.value
DocumentService.insert(doc)
FileService.add_file_from_kb(doc, kb_folder["id"], kb.tenant_id)
files.append((doc, blob))
except Exception as e:
err.append(file.filename + ": " + str(e))
return err, files |