mirror of https://github.com/langgenius/dify.git
88 lines
3.0 KiB
Python
88 lines
3.0 KiB
Python
from flask import request
|
|
|
|
import services
|
|
from controllers.common.errors import (
|
|
FilenameNotExistsError,
|
|
FileTooLargeError,
|
|
NoFileUploadedError,
|
|
TooManyFilesError,
|
|
UnsupportedFileTypeError,
|
|
)
|
|
from controllers.common.schema import register_schema_models
|
|
from controllers.web import web_ns
|
|
from controllers.web.wraps import WebApiResource
|
|
from extensions.ext_database import db
|
|
from fields.file_fields import FileResponse
|
|
from services.file_service import FileService
|
|
|
|
register_schema_models(web_ns, FileResponse)
|
|
|
|
|
|
@web_ns.route("/files/upload")
|
|
class FileApi(WebApiResource):
|
|
@web_ns.doc("upload_file")
|
|
@web_ns.doc(description="Upload a file for use in web applications")
|
|
@web_ns.doc(
|
|
responses={
|
|
201: "File uploaded successfully",
|
|
400: "Bad request - invalid file or parameters",
|
|
413: "File too large",
|
|
415: "Unsupported file type",
|
|
}
|
|
)
|
|
@web_ns.response(201, "File uploaded successfully", web_ns.models[FileResponse.__name__])
|
|
def post(self, app_model, end_user):
|
|
"""Upload a file for use in web applications.
|
|
|
|
Accepts file uploads for use within web applications, supporting
|
|
multiple file types with automatic validation and storage.
|
|
|
|
Args:
|
|
app_model: The associated application model
|
|
end_user: The end user uploading the file
|
|
|
|
Form Parameters:
|
|
file: The file to upload (required)
|
|
source: Optional source type (datasets or None)
|
|
|
|
Returns:
|
|
dict: File information including ID, URL, and metadata
|
|
int: HTTP status code 201 for success
|
|
|
|
Raises:
|
|
NoFileUploadedError: No file provided in request
|
|
TooManyFilesError: Multiple files provided (only one allowed)
|
|
FilenameNotExistsError: File has no filename
|
|
FileTooLargeError: File exceeds size limit
|
|
UnsupportedFileTypeError: File type not supported
|
|
"""
|
|
if "file" not in request.files:
|
|
raise NoFileUploadedError()
|
|
|
|
if len(request.files) > 1:
|
|
raise TooManyFilesError()
|
|
|
|
file = request.files["file"]
|
|
if not file.filename:
|
|
raise FilenameNotExistsError
|
|
|
|
source = request.form.get("source")
|
|
if source not in ("datasets", None):
|
|
source = None
|
|
|
|
try:
|
|
upload_file = FileService(db.engine).upload_file(
|
|
filename=file.filename,
|
|
content=file.read(),
|
|
mimetype=file.mimetype,
|
|
user=end_user,
|
|
source="datasets" if source == "datasets" else None,
|
|
)
|
|
except services.errors.file.FileTooLargeError as file_too_large_error:
|
|
raise FileTooLargeError(file_too_large_error.description)
|
|
except services.errors.file.UnsupportedFileTypeError:
|
|
raise UnsupportedFileTypeError()
|
|
|
|
response = FileResponse.model_validate(upload_file, from_attributes=True)
|
|
return response.model_dump(mode="json"), 201
|