feat/enhance the multi-modal support (#8818)

api/controllers/web/file.py

@@ -1,3 +1,5 @@
+import urllib.parse
+
 from flask import request
 from flask_restful import marshal_with
 
@@ -5,7 +7,8 @@ import services
 from controllers.web import api
 from controllers.web.error import FileTooLargeError, NoFileUploadedError, TooManyFilesError, UnsupportedFileTypeError
 from controllers.web.wraps import WebApiResource
-from fields.file_fields import file_fields
+from core.helper import ssrf_proxy
+from fields.file_fields import file_fields, remote_file_info_fields
 from services.file_service import FileService
 
 
@@ -31,4 +34,19 @@ class FileApi(WebApiResource):
         return upload_file, 201
 
 
+class RemoteFileInfoApi(WebApiResource):
+    @marshal_with(remote_file_info_fields)
+    def get(self, url):
+        decoded_url = urllib.parse.unquote(url)
+        try:
+            response = ssrf_proxy.head(decoded_url)
+            return {
+                "file_type": response.headers.get("Content-Type", "application/octet-stream"),
+                "file_length": int(response.headers.get("Content-Length", 0)),
+            }
+        except Exception as e:
+            return {"error": str(e)}, 400
+
+
 api.add_resource(FileApi, "/files/upload")
+api.add_resource(RemoteFileInfoApi, "/remote-files/<path:url>")

api/controllers/web/message.py

@@ -22,6 +22,7 @@ from core.errors.error import ModelCurrentlyNotSupportError, ProviderTokenNotIni
 from core.model_runtime.errors.invoke import InvokeError
 from fields.conversation_fields import message_file_fields
 from fields.message_fields import agent_thought_fields
+from fields.raws import FilesContainedField
 from libs import helper
 from libs.helper import TimestampField, uuid_value
 from models.model import AppMode
@@ -58,10 +59,10 @@ class MessageListApi(WebApiResource):
         "id": fields.String,
         "conversation_id": fields.String,
         "parent_message_id": fields.String,
-        "inputs": fields.Raw,
+        "inputs": FilesContainedField,
         "query": fields.String,
         "answer": fields.String(attribute="re_sign_file_url_answer"),
-        "message_files": fields.List(fields.Nested(message_file_fields), attribute="files"),
+        "message_files": fields.List(fields.Nested(message_file_fields)),
         "feedback": fields.Nested(feedback_fields, attribute="user_feedback", allow_null=True),
         "retriever_resources": fields.List(fields.Nested(retriever_resource_fields)),
         "created_at": TimestampField,

api/controllers/web/saved_message.py

@@ -17,7 +17,7 @@ message_fields = {
     "inputs": fields.Raw,
     "query": fields.String,
     "answer": fields.String,
-    "message_files": fields.List(fields.Nested(message_file_fields), attribute="files"),
+    "message_files": fields.List(fields.Nested(message_file_fields)),
     "feedback": fields.Nested(feedback_fields, attribute="user_feedback", allow_null=True),
     "created_at": TimestampField,
 }