fix: satisfy type checks in nodes

Signed-off-by: -LAN- <laipz8200@outlook.com>

api/.importlinter

@@ -112,7 +112,6 @@ ignore_imports =
     core.workflow.nodes.datasource.datasource_node -> models.model
     core.workflow.nodes.datasource.datasource_node -> models.tools
     core.workflow.nodes.datasource.datasource_node -> services.datasource_provider_service
-    core.workflow.nodes.document_extractor.node -> configs
     core.workflow.nodes.document_extractor.node -> core.file.file_manager
     core.workflow.nodes.document_extractor.node -> core.helper.ssrf_proxy
     core.workflow.nodes.http_request.entities -> configs

api/core/app/workflow/node_factory.py

@@ -1,5 +1,5 @@
 from collections.abc import Callable, Sequence
-from typing import TYPE_CHECKING, final
+from typing import TYPE_CHECKING, Any, cast, final
 
 from typing_extensions import override
 
@@ -15,6 +15,7 @@ from core.workflow.graph.graph import NodeFactory
 from core.workflow.nodes.base.node import Node
 from core.workflow.nodes.code.code_node import CodeNode
 from core.workflow.nodes.code.limits import CodeNodeLimits
+from core.workflow.nodes.document_extractor import DocumentExtractorNode, UnstructuredApiConfig
 from core.workflow.nodes.http_request.node import HttpRequestNode
 from core.workflow.nodes.node_mapping import LATEST_VERSION, NODE_TYPE_CLASSES_MAPPING
 from core.workflow.nodes.protocols import FileManagerProtocol, HttpClientProtocol
@@ -50,6 +51,7 @@ class DifyNodeFactory(NodeFactory):
         http_request_http_client: HttpClientProtocol | None = None,
         http_request_tool_file_manager_factory: Callable[[], ToolFileManager] = ToolFileManager,
         http_request_file_manager: FileManagerProtocol | None = None,
+        document_extractor_unstructured_api_config: UnstructuredApiConfig | None = None,
     ) -> None:
         self.graph_init_params = graph_init_params
         self.graph_runtime_state = graph_runtime_state
@@ -71,6 +73,13 @@ class DifyNodeFactory(NodeFactory):
         self._http_request_http_client = http_request_http_client or ssrf_proxy
         self._http_request_tool_file_manager_factory = http_request_tool_file_manager_factory
         self._http_request_file_manager = http_request_file_manager or file_manager
+        self._document_extractor_unstructured_api_config = (
+            document_extractor_unstructured_api_config
+            or UnstructuredApiConfig(
+                api_url=dify_config.UNSTRUCTURED_API_URL,
+                api_key=dify_config.UNSTRUCTURED_API_KEY or "",
+            )
+        )
 
     @override
     def create_node(self, node_config: NodeConfigDict) -> Node:
@@ -103,13 +112,17 @@ class DifyNodeFactory(NodeFactory):
         if not node_class:
             raise ValueError(f"No latest version class found for node type: {node_type}")
 
+        common_kwargs: dict[str, Any] = {
+            "id": node_id,
+            "config": node_config,
+            "graph_init_params": self.graph_init_params,
+            "graph_runtime_state": self.graph_runtime_state,
+        }
+
         # Create node instance
         if node_type == NodeType.CODE:
             return CodeNode(
-                id=node_id,
-                config=node_config,
-                graph_init_params=self.graph_init_params,
-                graph_runtime_state=self.graph_runtime_state,
+                **common_kwargs,
                 code_executor=self._code_executor,
                 code_providers=self._code_providers,
                 code_limits=self._code_limits,
@@ -117,27 +130,23 @@ class DifyNodeFactory(NodeFactory):
 
         if node_type == NodeType.TEMPLATE_TRANSFORM:
             return TemplateTransformNode(
-                id=node_id,
-                config=node_config,
-                graph_init_params=self.graph_init_params,
-                graph_runtime_state=self.graph_runtime_state,
+                **common_kwargs,
                 template_renderer=self._template_renderer,
             )
 
         if node_type == NodeType.HTTP_REQUEST:
             return HttpRequestNode(
-                id=node_id,
-                config=node_config,
-                graph_init_params=self.graph_init_params,
-                graph_runtime_state=self.graph_runtime_state,
+                **common_kwargs,
                 http_client=self._http_request_http_client,
                 tool_file_manager_factory=self._http_request_tool_file_manager_factory,
                 file_manager=self._http_request_file_manager,
             )
 
-        return node_class(
-            id=node_id,
-            config=node_config,
-            graph_init_params=self.graph_init_params,
-            graph_runtime_state=self.graph_runtime_state,
-        )
+        if node_type == NodeType.DOCUMENT_EXTRACTOR:
+            document_extractor_class = cast(type[DocumentExtractorNode], node_class)
+            return document_extractor_class(
+                **common_kwargs,
+                unstructured_api_config=self._document_extractor_unstructured_api_config,
+            )
+
+        return node_class(**common_kwargs)

api/core/workflow/nodes/document_extractor/__init__.py

@@ -1,4 +1,4 @@
-from .entities import DocumentExtractorNodeData
+from .entities import DocumentExtractorNodeData, UnstructuredApiConfig
 from .node import DocumentExtractorNode
 
-__all__ = ["DocumentExtractorNode", "DocumentExtractorNodeData"]
+__all__ = ["DocumentExtractorNode", "DocumentExtractorNodeData", "UnstructuredApiConfig"]

api/core/workflow/nodes/document_extractor/entities.py

@@ -1,7 +1,14 @@
 from collections.abc import Sequence
+from dataclasses import dataclass
 
 from core.workflow.nodes.base import BaseNodeData
 
 
 class DocumentExtractorNodeData(BaseNodeData):
     variable_selector: Sequence[str]
+
+
+@dataclass(frozen=True)
+class UnstructuredApiConfig:
+    api_url: str | None = None
+    api_key: str = ""

api/core/workflow/nodes/document_extractor/node.py

@@ -5,7 +5,7 @@ import logging
 import os
 import tempfile
 from collections.abc import Mapping, Sequence
-from typing import Any
+from typing import TYPE_CHECKING, Any
 
 import charset_normalizer
 import docx
@@ -20,7 +20,6 @@ from docx.oxml.text.paragraph import CT_P
 from docx.table import Table
 from docx.text.paragraph import Paragraph
 
-from configs import dify_config
 from core.file import File, FileTransferMethod, file_manager
 from core.helper import ssrf_proxy
 from core.variables import ArrayFileSegment
@@ -29,11 +28,15 @@ from core.workflow.enums import NodeType, WorkflowNodeExecutionStatus
 from core.workflow.node_events import NodeRunResult
 from core.workflow.nodes.base.node import Node
 
-from .entities import DocumentExtractorNodeData
+from .entities import DocumentExtractorNodeData, UnstructuredApiConfig
 from .exc import DocumentExtractorError, FileDownloadError, TextExtractionError, UnsupportedFileTypeError
 
 logger = logging.getLogger(__name__)
 
+if TYPE_CHECKING:
+    from core.workflow.entities import GraphInitParams
+    from core.workflow.runtime import GraphRuntimeState
+
 
 class DocumentExtractorNode(Node[DocumentExtractorNodeData]):
     """
@@ -47,6 +50,23 @@ class DocumentExtractorNode(Node[DocumentExtractorNodeData]):
     def version(cls) -> str:
         return "1"
 
+    def __init__(
+        self,
+        id: str,
+        config: Mapping[str, Any],
+        graph_init_params: "GraphInitParams",
+        graph_runtime_state: "GraphRuntimeState",
+        *,
+        unstructured_api_config: UnstructuredApiConfig | None = None,
+    ) -> None:
+        super().__init__(
+            id=id,
+            config=config,
+            graph_init_params=graph_init_params,
+            graph_runtime_state=graph_runtime_state,
+        )
+        self._unstructured_api_config = unstructured_api_config or UnstructuredApiConfig()
+
     def _run(self):
         variable_selector = self.node_data.variable_selector
         variable = self.graph_runtime_state.variable_pool.get(variable_selector)
@@ -64,7 +84,10 @@ class DocumentExtractorNode(Node[DocumentExtractorNodeData]):
 
         try:
             if isinstance(value, list):
-                extracted_text_list = list(map(_extract_text_from_file, value))
+                extracted_text_list = [
+                    _extract_text_from_file(file, unstructured_api_config=self._unstructured_api_config)
+                    for file in value
+                ]
                 return NodeRunResult(
                     status=WorkflowNodeExecutionStatus.SUCCEEDED,
                     inputs=inputs,
@@ -72,7 +95,7 @@ class DocumentExtractorNode(Node[DocumentExtractorNodeData]):
                     outputs={"text": ArrayStringSegment(value=extracted_text_list)},
                 )
             elif isinstance(value, File):
-                extracted_text = _extract_text_from_file(value)
+                extracted_text = _extract_text_from_file(value, unstructured_api_config=self._unstructured_api_config)
                 return NodeRunResult(
                     status=WorkflowNodeExecutionStatus.SUCCEEDED,
                     inputs=inputs,
@@ -103,7 +126,12 @@ class DocumentExtractorNode(Node[DocumentExtractorNodeData]):
         return {node_id + ".files": typed_node_data.variable_selector}
 
 
-def _extract_text_by_mime_type(*, file_content: bytes, mime_type: str) -> str:
+def _extract_text_by_mime_type(
+    *,
+    file_content: bytes,
+    mime_type: str,
+    unstructured_api_config: UnstructuredApiConfig,
+) -> str:
     """Extract text from a file based on its MIME type."""
     match mime_type:
         case "text/plain" | "text/html" | "text/htm" | "text/markdown" | "text/xml":
@@ -111,7 +139,7 @@ def _extract_text_by_mime_type(*, file_content: bytes, mime_type: str) -> str:
         case "application/pdf":
             return _extract_text_from_pdf(file_content)
         case "application/msword":
-            return _extract_text_from_doc(file_content)
+            return _extract_text_from_doc(file_content, unstructured_api_config=unstructured_api_config)
         case "application/vnd.openxmlformats-officedocument.wordprocessingml.document":
             return _extract_text_from_docx(file_content)
         case "text/csv":
@@ -119,11 +147,11 @@ def _extract_text_by_mime_type(*, file_content: bytes, mime_type: str) -> str:
         case "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" | "application/vnd.ms-excel":
             return _extract_text_from_excel(file_content)
         case "application/vnd.ms-powerpoint":
-            return _extract_text_from_ppt(file_content)
+            return _extract_text_from_ppt(file_content, unstructured_api_config=unstructured_api_config)
         case "application/vnd.openxmlformats-officedocument.presentationml.presentation":
-            return _extract_text_from_pptx(file_content)
+            return _extract_text_from_pptx(file_content, unstructured_api_config=unstructured_api_config)
         case "application/epub+zip":
-            return _extract_text_from_epub(file_content)
+            return _extract_text_from_epub(file_content, unstructured_api_config=unstructured_api_config)
         case "message/rfc822":
             return _extract_text_from_eml(file_content)
         case "application/vnd.ms-outlook":
@@ -140,7 +168,12 @@ def _extract_text_by_mime_type(*, file_content: bytes, mime_type: str) -> str:
             raise UnsupportedFileTypeError(f"Unsupported MIME type: {mime_type}")
 
 
-def _extract_text_by_file_extension(*, file_content: bytes, file_extension: str) -> str:
+def _extract_text_by_file_extension(
+    *,
+    file_content: bytes,
+    file_extension: str,
+    unstructured_api_config: UnstructuredApiConfig,
+) -> str:
     """Extract text from a file based on its file extension."""
     match file_extension:
         case (
@@ -203,7 +236,7 @@ def _extract_text_by_file_extension(*, file_content: bytes, file_extension: str)
         case ".pdf":
             return _extract_text_from_pdf(file_content)
         case ".doc":
-            return _extract_text_from_doc(file_content)
+            return _extract_text_from_doc(file_content, unstructured_api_config=unstructured_api_config)
         case ".docx":
             return _extract_text_from_docx(file_content)
         case ".csv":
@@ -211,11 +244,11 @@ def _extract_text_by_file_extension(*, file_content: bytes, file_extension: str)
         case ".xls" | ".xlsx":
             return _extract_text_from_excel(file_content)
         case ".ppt":
-            return _extract_text_from_ppt(file_content)
+            return _extract_text_from_ppt(file_content, unstructured_api_config=unstructured_api_config)
         case ".pptx":
-            return _extract_text_from_pptx(file_content)
+            return _extract_text_from_pptx(file_content, unstructured_api_config=unstructured_api_config)
         case ".epub":
-            return _extract_text_from_epub(file_content)
+            return _extract_text_from_epub(file_content, unstructured_api_config=unstructured_api_config)
         case ".eml":
             return _extract_text_from_eml(file_content)
         case ".msg":
@@ -312,14 +345,14 @@ def _extract_text_from_pdf(file_content: bytes) -> str:
         raise TextExtractionError(f"Failed to extract text from PDF: {str(e)}") from e
 
 
-def _extract_text_from_doc(file_content: bytes) -> str:
+def _extract_text_from_doc(file_content: bytes, *, unstructured_api_config: UnstructuredApiConfig) -> str:
     """
     Extract text from a DOC file.
     """
     from unstructured.partition.api import partition_via_api
 
-    if not dify_config.UNSTRUCTURED_API_URL:
-        raise TextExtractionError("UNSTRUCTURED_API_URL must be set")
+    if not unstructured_api_config.api_url:
+        raise TextExtractionError("Unstructured API URL is not configured for DOC file processing.")
 
     try:
         with tempfile.NamedTemporaryFile(suffix=".doc", delete=False) as temp_file:
@@ -329,8 +362,8 @@ def _extract_text_from_doc(file_content: bytes) -> str:
                 elements = partition_via_api(
                     file=file,
                     metadata_filename=temp_file.name,
-                    api_url=dify_config.UNSTRUCTURED_API_URL,
-                    api_key=dify_config.UNSTRUCTURED_API_KEY,  # type: ignore
+                    api_url=unstructured_api_config.api_url,
+                    api_key=unstructured_api_config.api_key,
                 )
             os.unlink(temp_file.name)
         return "\n".join([getattr(element, "text", "") for element in elements])
@@ -420,12 +453,20 @@ def _download_file_content(file: File) -> bytes:
         raise FileDownloadError(f"Error downloading file: {str(e)}") from e
 
 
-def _extract_text_from_file(file: File):
+def _extract_text_from_file(file: File, *, unstructured_api_config: UnstructuredApiConfig) -> str:
     file_content = _download_file_content(file)
     if file.extension:
-        extracted_text = _extract_text_by_file_extension(file_content=file_content, file_extension=file.extension)
+        extracted_text = _extract_text_by_file_extension(
+            file_content=file_content,
+            file_extension=file.extension,
+            unstructured_api_config=unstructured_api_config,
+        )
     elif file.mime_type:
-        extracted_text = _extract_text_by_mime_type(file_content=file_content, mime_type=file.mime_type)
+        extracted_text = _extract_text_by_mime_type(
+            file_content=file_content,
+            mime_type=file.mime_type,
+            unstructured_api_config=unstructured_api_config,
+        )
     else:
         raise UnsupportedFileTypeError("Unable to determine file type: MIME type or file extension is missing")
     return extracted_text
@@ -517,12 +558,12 @@ def _extract_text_from_excel(file_content: bytes) -> str:
         raise TextExtractionError(f"Failed to extract text from Excel file: {str(e)}") from e
 
 
-def _extract_text_from_ppt(file_content: bytes) -> str:
+def _extract_text_from_ppt(file_content: bytes, *, unstructured_api_config: UnstructuredApiConfig) -> str:
     from unstructured.partition.api import partition_via_api
     from unstructured.partition.ppt import partition_ppt
 
     try:
-        if dify_config.UNSTRUCTURED_API_URL:
+        if unstructured_api_config.api_url:
             with tempfile.NamedTemporaryFile(suffix=".ppt", delete=False) as temp_file:
                 temp_file.write(file_content)
                 temp_file.flush()
@@ -530,8 +571,8 @@ def _extract_text_from_ppt(file_content: bytes) -> str:
                     elements = partition_via_api(
                         file=file,
                         metadata_filename=temp_file.name,
-                        api_url=dify_config.UNSTRUCTURED_API_URL,
-                        api_key=dify_config.UNSTRUCTURED_API_KEY,  # type: ignore
+                        api_url=unstructured_api_config.api_url,
+                        api_key=unstructured_api_config.api_key,
                     )
                 os.unlink(temp_file.name)
         else:
@@ -543,12 +584,12 @@ def _extract_text_from_ppt(file_content: bytes) -> str:
         raise TextExtractionError(f"Failed to extract text from PPTX: {str(e)}") from e
 
 
-def _extract_text_from_pptx(file_content: bytes) -> str:
+def _extract_text_from_pptx(file_content: bytes, *, unstructured_api_config: UnstructuredApiConfig) -> str:
     from unstructured.partition.api import partition_via_api
     from unstructured.partition.pptx import partition_pptx
 
     try:
-        if dify_config.UNSTRUCTURED_API_URL:
+        if unstructured_api_config.api_url:
             with tempfile.NamedTemporaryFile(suffix=".pptx", delete=False) as temp_file:
                 temp_file.write(file_content)
                 temp_file.flush()
@@ -556,8 +597,8 @@ def _extract_text_from_pptx(file_content: bytes) -> str:
                     elements = partition_via_api(
                         file=file,
                         metadata_filename=temp_file.name,
-                        api_url=dify_config.UNSTRUCTURED_API_URL,
-                        api_key=dify_config.UNSTRUCTURED_API_KEY,  # type: ignore
+                        api_url=unstructured_api_config.api_url,
+                        api_key=unstructured_api_config.api_key,
                     )
                 os.unlink(temp_file.name)
         else:
@@ -568,12 +609,12 @@ def _extract_text_from_pptx(file_content: bytes) -> str:
         raise TextExtractionError(f"Failed to extract text from PPTX: {str(e)}") from e
 
 
-def _extract_text_from_epub(file_content: bytes) -> str:
+def _extract_text_from_epub(file_content: bytes, *, unstructured_api_config: UnstructuredApiConfig) -> str:
     from unstructured.partition.api import partition_via_api
     from unstructured.partition.epub import partition_epub
 
     try:
-        if dify_config.UNSTRUCTURED_API_URL:
+        if unstructured_api_config.api_url:
             with tempfile.NamedTemporaryFile(suffix=".epub", delete=False) as temp_file:
                 temp_file.write(file_content)
                 temp_file.flush()
@@ -581,8 +622,8 @@ def _extract_text_from_epub(file_content: bytes) -> str:
                     elements = partition_via_api(
                         file=file,
                         metadata_filename=temp_file.name,
-                        api_url=dify_config.UNSTRUCTURED_API_URL,
-                        api_key=dify_config.UNSTRUCTURED_API_KEY,  # type: ignore
+                        api_url=unstructured_api_config.api_url,
+                        api_key=unstructured_api_config.api_key,
                     )
                 os.unlink(temp_file.name)
         else: