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https://github.com/open-webui/open-webui
synced 2025-06-26 18:26:48 +00:00
Added support for using Apache Tika as a document loader.
Added persistent configuration options to configure use and location of Tika service. Updated backend.apps.rag.main:get_loader() to make use of Tika document loader.
This commit is contained in:
Nicko van Someren
parent
7bc88eb00d
commit
9cf622d981
@ -10,7 +10,7 @@ node_modules
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vite.config.js.timestamp-*
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vite.config.ts.timestamp-*
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__pycache__
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.env
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.idea
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_old
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uploads
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.ipynb_checkpoints
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@ -93,6 +93,8 @@ from config import (
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SRC_LOG_LEVELS,
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UPLOAD_DIR,
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DOCS_DIR,
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DOCUMENT_USE_TIKA,
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TIKA_SERVER_URL,
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RAG_TOP_K,
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RAG_RELEVANCE_THRESHOLD,
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RAG_EMBEDDING_ENGINE,
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@ -985,6 +987,41 @@ def store_docs_in_vector_db(docs, collection_name, overwrite: bool = False) -> b
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return False
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class TikaLoader:
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def __init__(self, file_path, mime_type=None):
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self.file_path = file_path
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self.mime_type = mime_type
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def load(self) -> List[Document]:
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with (open(self.file_path, "rb") as f):
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data = f.read()
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if self.mime_type is not None:
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headers = {"Content-Type": self.mime_type}
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else:
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headers = {}
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endpoint = str(TIKA_SERVER_URL)
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if not endpoint.endswith("/"):
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endpoint += "/"
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endpoint += "tika/text"
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r = requests.put(endpoint, data=data, headers=headers)
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if r.ok:
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raw_metadata = r.json()
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text = raw_metadata.get("X-TIKA:content", "<No text content found>")
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if "Content-Type" in raw_metadata:
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headers["Content-Type"] = raw_metadata["Content-Type"]
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log.info("Tika extracted text: %s", text)
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return [Document(page_content=text, metadata=headers)]
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else:
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raise Exception(f"Error calling Tika: {r.reason}")
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def get_loader(filename: str, file_content_type: str, file_path: str):
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file_ext = filename.split(".")[-1].lower()
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known_type = True
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@ -1035,47 +1072,57 @@ def get_loader(filename: str, file_content_type: str, file_path: str):
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"msg",
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]
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if file_ext == "pdf":
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loader = PyPDFLoader(
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file_path, extract_images=app.state.config.PDF_EXTRACT_IMAGES
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)
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elif file_ext == "csv":
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loader = CSVLoader(file_path)
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elif file_ext == "rst":
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loader = UnstructuredRSTLoader(file_path, mode="elements")
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elif file_ext == "xml":
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loader = UnstructuredXMLLoader(file_path)
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elif file_ext in ["htm", "html"]:
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loader = BSHTMLLoader(file_path, open_encoding="unicode_escape")
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elif file_ext == "md":
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loader = UnstructuredMarkdownLoader(file_path)
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elif file_content_type == "application/epub+zip":
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loader = UnstructuredEPubLoader(file_path)
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elif (
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file_content_type
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== "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
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or file_ext in ["doc", "docx"]
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):
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loader = Docx2txtLoader(file_path)
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elif file_content_type in [
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"application/vnd.ms-excel",
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"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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] or file_ext in ["xls", "xlsx"]:
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loader = UnstructuredExcelLoader(file_path)
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elif file_content_type in [
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"application/vnd.ms-powerpoint",
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"application/vnd.openxmlformats-officedocument.presentationml.presentation",
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] or file_ext in ["ppt", "pptx"]:
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loader = UnstructuredPowerPointLoader(file_path)
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elif file_ext == "msg":
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loader = OutlookMessageLoader(file_path)
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elif file_ext in known_source_ext or (
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file_content_type and file_content_type.find("text/") >= 0
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):
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loader = TextLoader(file_path, autodetect_encoding=True)
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log.warning("Use tika: %s, server URL: %s", DOCUMENT_USE_TIKA, TIKA_SERVER_URL)
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if DOCUMENT_USE_TIKA and TIKA_SERVER_URL:
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if file_ext in known_source_ext or (
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file_content_type and file_content_type.find("text/") >= 0
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):
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loader = TextLoader(file_path, autodetect_encoding=True)
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else:
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loader = TikaLoader(file_path, file_content_type)
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else:
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loader = TextLoader(file_path, autodetect_encoding=True)
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known_type = False
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if file_ext == "pdf":
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loader = PyPDFLoader(
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file_path, extract_images=app.state.config.PDF_EXTRACT_IMAGES
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)
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elif file_ext == "csv":
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loader = CSVLoader(file_path)
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elif file_ext == "rst":
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loader = UnstructuredRSTLoader(file_path, mode="elements")
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elif file_ext == "xml":
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loader = UnstructuredXMLLoader(file_path)
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elif file_ext in ["htm", "html"]:
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loader = BSHTMLLoader(file_path, open_encoding="unicode_escape")
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elif file_ext == "md":
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loader = UnstructuredMarkdownLoader(file_path)
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elif file_content_type == "application/epub+zip":
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loader = UnstructuredEPubLoader(file_path)
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elif (
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file_content_type
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== "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
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or file_ext in ["doc", "docx"]
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):
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loader = Docx2txtLoader(file_path)
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elif file_content_type in [
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"application/vnd.ms-excel",
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"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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] or file_ext in ["xls", "xlsx"]:
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loader = UnstructuredExcelLoader(file_path)
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elif file_content_type in [
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"application/vnd.ms-powerpoint",
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"application/vnd.openxmlformats-officedocument.presentationml.presentation",
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] or file_ext in ["ppt", "pptx"]:
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loader = UnstructuredPowerPointLoader(file_path)
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elif file_ext == "msg":
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loader = OutlookMessageLoader(file_path)
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elif file_ext in known_source_ext or (
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file_content_type and file_content_type.find("text/") >= 0
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):
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loader = TextLoader(file_path, autodetect_encoding=True)
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else:
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loader = TextLoader(file_path, autodetect_encoding=True)
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known_type = False
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return loader, known_type
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@ -878,6 +878,22 @@ WEBUI_SESSION_COOKIE_SECURE = os.environ.get(
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if WEBUI_AUTH and WEBUI_SECRET_KEY == "":
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raise ValueError(ERROR_MESSAGES.ENV_VAR_NOT_FOUND)
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####################################
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# RAG document text extraction
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####################################
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DOCUMENT_USE_TIKA = PersistentConfig(
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"DOCUMENT_USE_TIKA",
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"rag.document_use_tika",
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os.environ.get("DOCUMENT_USE_TIKA", "false").lower() == "true"
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)
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TIKA_SERVER_URL = PersistentConfig(
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"TIKA_SERVER_URL",
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"rag.tika_server_url",
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os.getenv("TIKA_SERVER_URL", "http://tika:9998"), # Default for sidecar deployment
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)
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####################################
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# RAG
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####################################
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