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import mimetypes
import os
import platform
import re
import urllib.parse
import warnings
from collections.abc import Mapping
from typing import Any
from uuid import uuid4
import httpx
try:
import magic
except ImportError:
if platform.system() == "Windows":
warnings.warn(
"To use python-magic guess MIMETYPE, you need to run `pip install python-magic-bin`", stacklevel=2
)
elif platform.system() == "Darwin":
warnings.warn("To use python-magic guess MIMETYPE, you need to run `brew install libmagic`", stacklevel=2)
elif platform.system() == "Linux":
warnings.warn(
"To use python-magic guess MIMETYPE, you need to run `sudo apt-get install libmagic1`", stacklevel=2
)
else:
warnings.warn("To use python-magic guess MIMETYPE, you need to install `libmagic`", stacklevel=2)
magic = None # type: ignore
from pydantic import BaseModel
from configs import dify_config
class FileInfo(BaseModel):
filename: str
extension: str
mimetype: str
size: int
def guess_file_info_from_response(response: httpx.Response):
url = str(response.url)
# Try to extract filename from URL
parsed_url = urllib.parse.urlparse(url)
url_path = parsed_url.path
filename = os.path.basename(url_path)
# If filename couldn't be extracted, use Content-Disposition header
if not filename:
content_disposition = response.headers.get("Content-Disposition")
if content_disposition:
filename_match = re.search(r'filename="?(.+)"?', content_disposition)
if filename_match:
filename = filename_match.group(1)
# If still no filename, generate a unique one
if not filename:
unique_name = str(uuid4())
filename = f"{unique_name}"
# Guess MIME type from filename first, then URL
mimetype, _ = mimetypes.guess_type(filename)
if mimetype is None:
mimetype, _ = mimetypes.guess_type(url)
if mimetype is None:
# If guessing fails, use Content-Type from response headers
mimetype = response.headers.get("Content-Type", "application/octet-stream")
# Use python-magic to guess MIME type if still unknown or generic
if mimetype == "application/octet-stream" and magic is not None:
try:
mimetype = magic.from_buffer(response.content[:1024], mime=True)
except magic.MagicException:
pass
extension = os.path.splitext(filename)[1]
# Ensure filename has an extension
if not extension:
extension = mimetypes.guess_extension(mimetype) or ".bin"
filename = f"{filename}{extension}"
return FileInfo(
filename=filename,
extension=extension,
mimetype=mimetype,
size=int(response.headers.get("Content-Length", -1)),
)
def get_parameters_from_feature_dict(*, features_dict: Mapping[str, Any], user_input_form: list[dict[str, Any]]):
return {
"opening_statement": features_dict.get("opening_statement"),
"suggested_questions": features_dict.get("suggested_questions", []),
"suggested_questions_after_answer": features_dict.get("suggested_questions_after_answer", {"enabled": False}),
"speech_to_text": features_dict.get("speech_to_text", {"enabled": False}),
"text_to_speech": features_dict.get("text_to_speech", {"enabled": False}),
"retriever_resource": features_dict.get("retriever_resource", {"enabled": False}),
"annotation_reply": features_dict.get("annotation_reply", {"enabled": False}),
"more_like_this": features_dict.get("more_like_this", {"enabled": False}),
"user_input_form": user_input_form,
"sensitive_word_avoidance": features_dict.get(
"sensitive_word_avoidance", {"enabled": False, "type": "", "configs": []}
),
"file_upload": features_dict.get(
"file_upload",
{
"image": {
"enabled": False,
"number_limits": 3,
"detail": "high",
"transfer_methods": ["remote_url", "local_file"],
}
},
),
"system_parameters": {
"image_file_size_limit": dify_config.UPLOAD_IMAGE_FILE_SIZE_LIMIT,
"video_file_size_limit": dify_config.UPLOAD_VIDEO_FILE_SIZE_LIMIT,
"audio_file_size_limit": dify_config.UPLOAD_AUDIO_FILE_SIZE_LIMIT,
"file_size_limit": dify_config.UPLOAD_FILE_SIZE_LIMIT,
"workflow_file_upload_limit": dify_config.WORKFLOW_FILE_UPLOAD_LIMIT,
},
}
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