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feat: external document loader support

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This commit is contained in:
Timothy Jaeryang Baek 2025-05-14 22:28:40 +04:00
parent 32ea31144e
commit 8732b64b6b
8 changed files with 140 additions and 4 deletions
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12
backend/open_webui/config.py
View File

@ -1838,6 +1838,18 @@ CONTENT_EXTRACTION_ENGINE = PersistentConfig(
os.environ.get("CONTENT_EXTRACTION_ENGINE", "").lower(),
)
EXTERNAL_DOCUMENT_LOADER_URL = PersistentConfig(
"EXTERNAL_DOCUMENT_LOADER_URL",
"rag.external_document_loader_url",
os.environ.get("EXTERNAL_DOCUMENT_LOADER_URL", ""),
)
EXTERNAL_DOCUMENT_LOADER_API_KEY = PersistentConfig(
"EXTERNAL_DOCUMENT_LOADER_API_KEY",
"rag.external_document_loader_api_key",
os.environ.get("EXTERNAL_DOCUMENT_LOADER_API_KEY", ""),
)
TIKA_SERVER_URL = PersistentConfig(
"TIKA_SERVER_URL",
"rag.tika_server_url",

4
backend/open_webui/main.py
View File

@ -206,6 +206,8 @@ from open_webui.config import (
CHUNK_OVERLAP,
CHUNK_SIZE,
CONTENT_EXTRACTION_ENGINE,
EXTERNAL_DOCUMENT_LOADER_URL,
EXTERNAL_DOCUMENT_LOADER_API_KEY,
TIKA_SERVER_URL,
DOCLING_SERVER_URL,
DOCLING_OCR_ENGINE,
@ -646,6 +648,8 @@ app.state.config.ENABLE_RAG_HYBRID_SEARCH = ENABLE_RAG_HYBRID_SEARCH
app.state.config.ENABLE_WEB_LOADER_SSL_VERIFICATION = ENABLE_WEB_LOADER_SSL_VERIFICATION
app.state.config.CONTENT_EXTRACTION_ENGINE = CONTENT_EXTRACTION_ENGINE
app.state.config.EXTERNAL_DOCUMENT_LOADER_URL = EXTERNAL_DOCUMENT_LOADER_URL
app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY = EXTERNAL_DOCUMENT_LOADER_API_KEY
app.state.config.TIKA_SERVER_URL = TIKA_SERVER_URL
app.state.config.DOCLING_SERVER_URL = DOCLING_SERVER_URL
app.state.config.DOCLING_OCR_ENGINE = DOCLING_OCR_ENGINE

58
backend/open_webui/retrieval/loaders/external_document.py Normal file
View File

@ -0,0 +1,58 @@
import requests
import logging
from typing import Iterator, List, Union
from langchain_core.document_loaders import BaseLoader
from langchain_core.documents import Document
from open_webui.env import SRC_LOG_LEVELS
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["RAG"])
class ExternalDocumentLoader(BaseLoader):
def __init__(
self,
file_path,
url: str,
api_key: str,
mime_type=None,
**kwargs,
) -> None:
self.url = url
self.api_key = api_key
self.file_path = file_path
self.mime_type = mime_type
def load(self) -> list[Document]:
with open(self.file_path, "rb") as f:
data = f.read()
headers = {}
if self.mime_type is not None:
headers["Content-Type"] = self.mime_type
if self.api_key is not None:
headers["Authorization"] = f"Bearer {self.api_key}"
url = self.url
if url.endswith("/"):
url = url[:-1]
r = requests.put(f"{url}/process", data=data, headers=headers)
if r.ok:
res = r.json()
if res:
return [
Document(
page_content=res.get("page_content"),
metadata=res.get("metadata"),
)
]
else:
raise Exception("Error loading document: No content returned")
else:
raise Exception(f"Error loading document: {r.status_code} {r.text}")

4
backend/open_webui/retrieval/loaders/external.py → backend/open_webui/retrieval/loaders/external_web.py
View File

@ -10,7 +10,7 @@ log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["RAG"])
class ExternalLoader(BaseLoader):
class ExternalWebLoader(BaseLoader):
def __init__(
self,
web_paths: Union[str, List[str]],
@ -32,7 +32,7 @@ class ExternalLoader(BaseLoader):
response = requests.post(
self.external_url,
headers={
"User-Agent": "Open WebUI (https://github.com/open-webui/open-webui) RAG Bot",
"User-Agent": "Open WebUI (https://github.com/open-webui/open-webui) External Web Loader",
"Authorization": f"Bearer {self.external_api_key}",
},
json={

22
backend/open_webui/retrieval/loaders/main.py
View File

@ -21,6 +21,8 @@ from langchain_community.document_loaders import (
)
from langchain_core.documents import Document
from open_webui.retrieval.loaders.external_document import ExternalDocumentLoader
from open_webui.retrieval.loaders.mistral import MistralLoader
from open_webui.env import SRC_LOG_LEVELS, GLOBAL_LOG_LEVEL
@ -213,6 +215,17 @@ class Loader:
def _get_loader(self, filename: str, file_content_type: str, file_path: str):
file_ext = filename.split(".")[-1].lower()
if (
self.engine == "external"
and self.kwargs.get("EXTERNAL_DOCUMENT_LOADER_URL")
and self.kwargs.get("EXTERNAL_DOCUMENT_LOADER_API_KEY")
):
loader = ExternalDocumentLoader(
file_path=file_path,
url=self.kwargs.get("EXTERNAL_DOCUMENT_LOADER_URL"),
api_key=self.kwargs.get("EXTERNAL_DOCUMENT_LOADER_API_KEY"),
mime_type=file_content_type,
)
if self.engine == "tika" and self.kwargs.get("TIKA_SERVER_URL"):
if self._is_text_file(file_ext, file_content_type):
loader = TextLoader(file_path, autodetect_encoding=True)
@ -269,6 +282,15 @@ class Loader:
loader = MistralLoader(
api_key=self.kwargs.get("MISTRAL_OCR_API_KEY"), file_path=file_path
)
elif (
self.engine == "external"
and self.kwargs.get("MISTRAL_OCR_API_KEY") != ""
and file_ext
in ["pdf"] # Mistral OCR currently only supports PDF and images
):
loader = MistralLoader(
api_key=self.kwargs.get("MISTRAL_OCR_API_KEY"), file_path=file_path
)
else:
if file_ext == "pdf":
loader = PyPDFLoader(

4
backend/open_webui/retrieval/web/utils.py
View File

@ -25,7 +25,7 @@ from langchain_community.document_loaders.firecrawl import FireCrawlLoader
from langchain_community.document_loaders.base import BaseLoader
from langchain_core.documents import Document
from open_webui.retrieval.loaders.tavily import TavilyLoader
from open_webui.retrieval.loaders.external import ExternalLoader
from backend.open_webui.retrieval.loaders.external_web import ExternalWebLoader
from open_webui.constants import ERROR_MESSAGES
from open_webui.config import (
ENABLE_RAG_LOCAL_WEB_FETCH,
@ -628,7 +628,7 @@ def get_web_loader(
web_loader_args["extract_depth"] = TAVILY_EXTRACT_DEPTH.value
if WEB_LOADER_ENGINE.value == "external":
WebLoaderClass = ExternalLoader
WebLoaderClass = ExternalWebLoader
web_loader_args["external_url"] = EXTERNAL_WEB_LOADER_URL.value
web_loader_args["external_api_key"] = EXTERNAL_WEB_LOADER_API_KEY.value

19
backend/open_webui/routers/retrieval.py
View File

@ -352,6 +352,8 @@ async def get_rag_config(request: Request, user=Depends(get_admin_user)):
# Content extraction settings
"CONTENT_EXTRACTION_ENGINE": request.app.state.config.CONTENT_EXTRACTION_ENGINE,
"PDF_EXTRACT_IMAGES": request.app.state.config.PDF_EXTRACT_IMAGES,
"EXTERNAL_DOCUMENT_LOADER_URL": request.app.state.config.EXTERNAL_DOCUMENT_LOADER_URL,
"EXTERNAL_DOCUMENT_LOADER_API_KEY": request.app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY,
"TIKA_SERVER_URL": request.app.state.config.TIKA_SERVER_URL,
"DOCLING_SERVER_URL": request.app.state.config.DOCLING_SERVER_URL,
"DOCLING_OCR_ENGINE": request.app.state.config.DOCLING_OCR_ENGINE,
@ -493,6 +495,9 @@ class ConfigForm(BaseModel):
# Content extraction settings
CONTENT_EXTRACTION_ENGINE: Optional[str] = None
PDF_EXTRACT_IMAGES: Optional[bool] = None
EXTERNAL_DOCUMENT_LOADER_URL: Optional[str] = None
EXTERNAL_DOCUMENT_LOADER_API_KEY: Optional[str] = None
TIKA_SERVER_URL: Optional[str] = None
DOCLING_SERVER_URL: Optional[str] = None
DOCLING_OCR_ENGINE: Optional[str] = None
@ -583,6 +588,16 @@ async def update_rag_config(
if form_data.PDF_EXTRACT_IMAGES is not None
else request.app.state.config.PDF_EXTRACT_IMAGES
)
request.app.state.config.EXTERNAL_DOCUMENT_LOADER_URL = (
form_data.EXTERNAL_DOCUMENT_LOADER_URL
if form_data.EXTERNAL_DOCUMENT_LOADER_URL is not None
else request.app.state.config.EXTERNAL_DOCUMENT_LOADER_URL
)
request.app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY = (
form_data.EXTERNAL_DOCUMENT_LOADER_API_KEY
if form_data.EXTERNAL_DOCUMENT_LOADER_API_KEY is not None
else request.app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY
)
request.app.state.config.TIKA_SERVER_URL = (
form_data.TIKA_SERVER_URL
if form_data.TIKA_SERVER_URL is not None
@ -818,6 +833,8 @@ async def update_rag_config(
# Content extraction settings
"CONTENT_EXTRACTION_ENGINE": request.app.state.config.CONTENT_EXTRACTION_ENGINE,
"PDF_EXTRACT_IMAGES": request.app.state.config.PDF_EXTRACT_IMAGES,
"EXTERNAL_DOCUMENT_LOADER_URL": request.app.state.config.EXTERNAL_DOCUMENT_LOADER_URL,
"EXTERNAL_DOCUMENT_LOADER_API_KEY": request.app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY,
"TIKA_SERVER_URL": request.app.state.config.TIKA_SERVER_URL,
"DOCLING_SERVER_URL": request.app.state.config.DOCLING_SERVER_URL,
"DOCLING_OCR_ENGINE": request.app.state.config.DOCLING_OCR_ENGINE,
@ -1139,6 +1156,8 @@ def process_file(
file_path = Storage.get_file(file_path)
loader = Loader(
engine=request.app.state.config.CONTENT_EXTRACTION_ENGINE,
EXTERNAL_DOCUMENT_LOADER_URL=request.app.state.config.EXTERNAL_DOCUMENT_LOADER_URL,
EXTERNAL_DOCUMENT_LOADER_API_KEY=request.app.state.config.EXTERNAL_DOCUMENT_LOADER_API_KEY,
TIKA_SERVER_URL=request.app.state.config.TIKA_SERVER_URL,
DOCLING_SERVER_URL=request.app.state.config.DOCLING_SERVER_URL,
DOCLING_OCR_ENGINE=request.app.state.config.DOCLING_OCR_ENGINE,

21
src/lib/components/admin/Settings/Documents.svelte
View File

@ -124,6 +124,13 @@
};
const submitHandler = async () => {
if (
RAGConfig.CONTENT_EXTRACTION_ENGINE === 'external' &&
RAGConfig.EXTERNAL_DOCUMENT_LOADER_URL === ''
) {
toast.error($i18n.t('External Document Loader URL required.'));
return;
}
if (RAGConfig.CONTENT_EXTRACTION_ENGINE === 'tika' && RAGConfig.TIKA_SERVER_URL === '') {
toast.error($i18n.t('Tika Server URL required.'));
return;
@ -256,6 +263,7 @@
bind:value={RAGConfig.CONTENT_EXTRACTION_ENGINE}
>
<option value="">{$i18n.t('Default')}</option>
<option value="external">{$i18n.t('External')}</option>
<option value="tika">{$i18n.t('Tika')}</option>
<option value="docling">{$i18n.t('Docling')}</option>
<option value="document_intelligence">{$i18n.t('Document Intelligence')}</option>
@ -275,6 +283,19 @@
</div>
</div>
</div>
{:else if RAGConfig.CONTENT_EXTRACTION_ENGINE === 'external'}
<div class="my-0.5 flex gap-2 pr-2">
<input
class="flex-1 w-full text-sm bg-transparent outline-hidden"
placeholder={$i18n.t('Enter External Document Loader URL')}
bind:value={RAGConfig.EXTERNAL_DOCUMENT_LOADER_URL}
/>
<SensitiveInput
placeholder={$i18n.t('Enter External Document Loader API Key')}
required={false}
bind:value={RAGConfig.EXTERNAL_DOCUMENT_LOADER_API_KEY}
/>
</div>
{:else if RAGConfig.CONTENT_EXTRACTION_ENGINE === 'tika'}
<div class="flex w-full mt-1">
<div class="flex-1 mr-2">