mirror of
https://github.com/open-webui/open-webui
synced 2024-11-16 13:40:55 +00:00
124 lines
4.1 KiB
Python
124 lines
4.1 KiB
Python
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
from importlib import util
|
|
|
|
from apps.webui.models.functions import Functions
|
|
from apps.webui.models.tools import Tools
|
|
from config import FUNCTIONS_DIR, TOOLS_DIR
|
|
|
|
|
|
def extract_frontmatter(file_path):
|
|
"""
|
|
Extract frontmatter as a dictionary from the specified file path.
|
|
"""
|
|
frontmatter = {}
|
|
frontmatter_started = False
|
|
frontmatter_ended = False
|
|
frontmatter_pattern = re.compile(r"^\s*([a-z_]+):\s*(.*)\s*$", re.IGNORECASE)
|
|
|
|
try:
|
|
with open(file_path, "r", encoding="utf-8") as file:
|
|
first_line = file.readline()
|
|
if first_line.strip() != '"""':
|
|
# The file doesn't start with triple quotes
|
|
return {}
|
|
|
|
frontmatter_started = True
|
|
|
|
for line in file:
|
|
if '"""' in line:
|
|
if frontmatter_started:
|
|
frontmatter_ended = True
|
|
break
|
|
|
|
if frontmatter_started and not frontmatter_ended:
|
|
match = frontmatter_pattern.match(line)
|
|
if match:
|
|
key, value = match.groups()
|
|
frontmatter[key.strip()] = value.strip()
|
|
|
|
except FileNotFoundError:
|
|
print(f"Error: The file {file_path} does not exist.")
|
|
return {}
|
|
except Exception as e:
|
|
print(f"An error occurred: {e}")
|
|
return {}
|
|
|
|
return frontmatter
|
|
|
|
|
|
def load_toolkit_module_by_id(toolkit_id):
|
|
toolkit_path = os.path.join(TOOLS_DIR, f"{toolkit_id}.py")
|
|
|
|
if not os.path.exists(toolkit_path):
|
|
tool = Tools.get_tool_by_id(toolkit_id)
|
|
if tool:
|
|
with open(toolkit_path, "w") as file:
|
|
file.write(tool.content)
|
|
else:
|
|
raise Exception(f"Toolkit not found: {toolkit_id}")
|
|
|
|
spec = util.spec_from_file_location(toolkit_id, toolkit_path)
|
|
module = util.module_from_spec(spec)
|
|
frontmatter = extract_frontmatter(toolkit_path)
|
|
|
|
try:
|
|
install_frontmatter_requirements(frontmatter.get("requirements", ""))
|
|
spec.loader.exec_module(module)
|
|
print(f"Loaded module: {module.__name__}")
|
|
if hasattr(module, "Tools"):
|
|
return module.Tools(), frontmatter
|
|
else:
|
|
raise Exception("No Tools class found")
|
|
except Exception as e:
|
|
print(f"Error loading module: {toolkit_id}")
|
|
# Move the file to the error folder
|
|
os.rename(toolkit_path, f"{toolkit_path}.error")
|
|
raise e
|
|
|
|
|
|
def load_function_module_by_id(function_id):
|
|
function_path = os.path.join(FUNCTIONS_DIR, f"{function_id}.py")
|
|
|
|
if not os.path.exists(function_path):
|
|
function = Functions.get_function_by_id(function_id)
|
|
if function:
|
|
with open(function_path, "w") as file:
|
|
file.write(function.content)
|
|
else:
|
|
raise Exception(f"Function not found: {function_id}")
|
|
|
|
spec = util.spec_from_file_location(function_id, function_path)
|
|
module = util.module_from_spec(spec)
|
|
frontmatter = extract_frontmatter(function_path)
|
|
|
|
try:
|
|
install_frontmatter_requirements(frontmatter.get("requirements", ""))
|
|
spec.loader.exec_module(module)
|
|
print(f"Loaded module: {module.__name__}")
|
|
if hasattr(module, "Pipe"):
|
|
return module.Pipe(), "pipe", frontmatter
|
|
elif hasattr(module, "Filter"):
|
|
return module.Filter(), "filter", frontmatter
|
|
elif hasattr(module, "Action"):
|
|
return module.Action(), "action", frontmatter
|
|
else:
|
|
raise Exception("No Function class found")
|
|
except Exception as e:
|
|
print(f"Error loading module: {function_id}")
|
|
# Move the file to the error folder
|
|
os.rename(function_path, f"{function_path}.error")
|
|
raise e
|
|
|
|
|
|
def install_frontmatter_requirements(requirements):
|
|
if requirements:
|
|
req_list = [req.strip() for req in requirements.split(",")]
|
|
for req in req_list:
|
|
print(f"Installing requirement: {req}")
|
|
subprocess.check_call([sys.executable, "-m", "pip", "install", req])
|
|
else:
|
|
print("No requirements found in frontmatter.")
|