open-webui/backend/apps/rag/main.py
2024-08-30 22:26:22 +02:00

1483 lines
50 KiB
Python

import json
import logging
import mimetypes
import os
import shutil
import socket
import urllib.parse
import uuid
from datetime import datetime
from pathlib import Path
from typing import Iterator, Optional, Sequence, Union
import requests
import validators
from apps.rag.search.brave import search_brave
from apps.rag.search.duckduckgo import search_duckduckgo
from apps.rag.search.google_pse import search_google_pse
from apps.rag.search.jina_search import search_jina
from apps.rag.search.main import SearchResult
from apps.rag.search.searchapi import search_searchapi
from apps.rag.search.searxng import search_searxng
from apps.rag.search.serper import search_serper
from apps.rag.search.serply import search_serply
from apps.rag.search.serpstack import search_serpstack
from apps.rag.search.tavily import search_tavily
from apps.rag.utils import (
get_embedding_function,
get_model_path,
query_collection,
query_collection_with_hybrid_search,
query_doc,
query_doc_with_hybrid_search,
)
from apps.webui.models.documents import DocumentForm, Documents
from apps.webui.models.files import Files
from chromadb.utils.batch_utils import create_batches
from config import (
BRAVE_SEARCH_API_KEY,
CHROMA_CLIENT,
CHUNK_OVERLAP,
CHUNK_SIZE,
CONTENT_EXTRACTION_ENGINE,
CORS_ALLOW_ORIGIN,
DEVICE_TYPE,
DOCS_DIR,
ENABLE_RAG_HYBRID_SEARCH,
ENABLE_RAG_LOCAL_WEB_FETCH,
ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION,
ENABLE_RAG_WEB_SEARCH,
ENV,
GOOGLE_PSE_API_KEY,
GOOGLE_PSE_ENGINE_ID,
PDF_EXTRACT_IMAGES,
RAG_EMBEDDING_ENGINE,
RAG_EMBEDDING_MODEL,
RAG_EMBEDDING_MODEL_AUTO_UPDATE,
RAG_EMBEDDING_MODEL_TRUST_REMOTE_CODE,
RAG_EMBEDDING_OPENAI_BATCH_SIZE,
RAG_FILE_MAX_COUNT,
RAG_FILE_MAX_SIZE,
RAG_OPENAI_API_BASE_URL,
RAG_OPENAI_API_KEY,
RAG_RELEVANCE_THRESHOLD,
RAG_RERANKING_MODEL,
RAG_RERANKING_MODEL_AUTO_UPDATE,
RAG_RERANKING_MODEL_TRUST_REMOTE_CODE,
RAG_TEMPLATE,
RAG_TOP_K,
RAG_WEB_SEARCH_CONCURRENT_REQUESTS,
RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
RAG_WEB_SEARCH_ENGINE,
RAG_WEB_SEARCH_RESULT_COUNT,
SEARCHAPI_API_KEY,
SEARCHAPI_ENGINE,
SEARXNG_QUERY_URL,
SERPER_API_KEY,
SERPLY_API_KEY,
SERPSTACK_API_KEY,
SERPSTACK_HTTPS,
TAVILY_API_KEY,
TIKA_SERVER_URL,
UPLOAD_DIR,
YOUTUBE_LOADER_LANGUAGE,
AppConfig,
)
from constants import ERROR_MESSAGES
from env import SRC_LOG_LEVELS
from fastapi import Depends, FastAPI, File, Form, HTTPException, UploadFile, status
from fastapi.middleware.cors import CORSMiddleware
from langchain.text_splitter import RecursiveCharacterTextSplitter
from langchain_community.document_loaders import (
BSHTMLLoader,
CSVLoader,
Docx2txtLoader,
OutlookMessageLoader,
PyPDFLoader,
TextLoader,
UnstructuredEPubLoader,
UnstructuredExcelLoader,
UnstructuredMarkdownLoader,
UnstructuredPowerPointLoader,
UnstructuredRSTLoader,
UnstructuredXMLLoader,
WebBaseLoader,
YoutubeLoader,
)
from langchain_core.documents import Document
from pydantic import BaseModel
from utils.misc import (
calculate_sha256,
calculate_sha256_string,
extract_folders_after_data_docs,
sanitize_filename,
)
from utils.utils import get_admin_user, get_verified_user
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["RAG"])
app = FastAPI()
app.state.config = AppConfig()
app.state.config.TOP_K = RAG_TOP_K
app.state.config.RELEVANCE_THRESHOLD = RAG_RELEVANCE_THRESHOLD
app.state.config.FILE_MAX_SIZE = RAG_FILE_MAX_SIZE
app.state.config.FILE_MAX_COUNT = RAG_FILE_MAX_COUNT
app.state.config.ENABLE_RAG_HYBRID_SEARCH = ENABLE_RAG_HYBRID_SEARCH
app.state.config.ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION = (
ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION
)
app.state.config.CONTENT_EXTRACTION_ENGINE = CONTENT_EXTRACTION_ENGINE
app.state.config.TIKA_SERVER_URL = TIKA_SERVER_URL
app.state.config.CHUNK_SIZE = CHUNK_SIZE
app.state.config.CHUNK_OVERLAP = CHUNK_OVERLAP
app.state.config.RAG_EMBEDDING_ENGINE = RAG_EMBEDDING_ENGINE
app.state.config.RAG_EMBEDDING_MODEL = RAG_EMBEDDING_MODEL
app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE = RAG_EMBEDDING_OPENAI_BATCH_SIZE
app.state.config.RAG_RERANKING_MODEL = RAG_RERANKING_MODEL
app.state.config.RAG_TEMPLATE = RAG_TEMPLATE
app.state.config.OPENAI_API_BASE_URL = RAG_OPENAI_API_BASE_URL
app.state.config.OPENAI_API_KEY = RAG_OPENAI_API_KEY
app.state.config.PDF_EXTRACT_IMAGES = PDF_EXTRACT_IMAGES
app.state.config.YOUTUBE_LOADER_LANGUAGE = YOUTUBE_LOADER_LANGUAGE
app.state.YOUTUBE_LOADER_TRANSLATION = None
app.state.config.ENABLE_RAG_WEB_SEARCH = ENABLE_RAG_WEB_SEARCH
app.state.config.RAG_WEB_SEARCH_ENGINE = RAG_WEB_SEARCH_ENGINE
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST = RAG_WEB_SEARCH_DOMAIN_FILTER_LIST
app.state.config.SEARXNG_QUERY_URL = SEARXNG_QUERY_URL
app.state.config.GOOGLE_PSE_API_KEY = GOOGLE_PSE_API_KEY
app.state.config.GOOGLE_PSE_ENGINE_ID = GOOGLE_PSE_ENGINE_ID
app.state.config.BRAVE_SEARCH_API_KEY = BRAVE_SEARCH_API_KEY
app.state.config.SERPSTACK_API_KEY = SERPSTACK_API_KEY
app.state.config.SERPSTACK_HTTPS = SERPSTACK_HTTPS
app.state.config.SERPER_API_KEY = SERPER_API_KEY
app.state.config.SERPLY_API_KEY = SERPLY_API_KEY
app.state.config.TAVILY_API_KEY = TAVILY_API_KEY
app.state.config.SEARCHAPI_API_KEY = SEARCHAPI_API_KEY
app.state.config.SEARCHAPI_ENGINE = SEARCHAPI_ENGINE
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT = RAG_WEB_SEARCH_RESULT_COUNT
app.state.config.RAG_WEB_SEARCH_CONCURRENT_REQUESTS = RAG_WEB_SEARCH_CONCURRENT_REQUESTS
def update_embedding_model(
embedding_model: str,
update_model: bool = False,
):
if embedding_model and app.state.config.RAG_EMBEDDING_ENGINE == "":
import sentence_transformers
app.state.sentence_transformer_ef = sentence_transformers.SentenceTransformer(
get_model_path(embedding_model, update_model),
device=DEVICE_TYPE,
trust_remote_code=RAG_EMBEDDING_MODEL_TRUST_REMOTE_CODE,
)
else:
app.state.sentence_transformer_ef = None
def update_reranking_model(
reranking_model: str,
update_model: bool = False,
):
if reranking_model:
import sentence_transformers
app.state.sentence_transformer_rf = sentence_transformers.CrossEncoder(
get_model_path(reranking_model, update_model),
device=DEVICE_TYPE,
trust_remote_code=RAG_RERANKING_MODEL_TRUST_REMOTE_CODE,
)
else:
app.state.sentence_transformer_rf = None
update_embedding_model(
app.state.config.RAG_EMBEDDING_MODEL,
RAG_EMBEDDING_MODEL_AUTO_UPDATE,
)
update_reranking_model(
app.state.config.RAG_RERANKING_MODEL,
RAG_RERANKING_MODEL_AUTO_UPDATE,
)
app.state.EMBEDDING_FUNCTION = get_embedding_function(
app.state.config.RAG_EMBEDDING_ENGINE,
app.state.config.RAG_EMBEDDING_MODEL,
app.state.sentence_transformer_ef,
app.state.config.OPENAI_API_KEY,
app.state.config.OPENAI_API_BASE_URL,
app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
)
app.add_middleware(
CORSMiddleware,
allow_origins=CORS_ALLOW_ORIGIN,
allow_credentials=True,
allow_methods=["*"],
allow_headers=["*"],
)
class CollectionNameForm(BaseModel):
collection_name: Optional[str] = "test"
class UrlForm(CollectionNameForm):
url: str
class SearchForm(CollectionNameForm):
query: str
@app.get("/")
async def get_status():
return {
"status": True,
"chunk_size": app.state.config.CHUNK_SIZE,
"chunk_overlap": app.state.config.CHUNK_OVERLAP,
"template": app.state.config.RAG_TEMPLATE,
"embedding_engine": app.state.config.RAG_EMBEDDING_ENGINE,
"embedding_model": app.state.config.RAG_EMBEDDING_MODEL,
"reranking_model": app.state.config.RAG_RERANKING_MODEL,
"openai_batch_size": app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
}
@app.get("/embedding")
async def get_embedding_config(user=Depends(get_admin_user)):
return {
"status": True,
"embedding_engine": app.state.config.RAG_EMBEDDING_ENGINE,
"embedding_model": app.state.config.RAG_EMBEDDING_MODEL,
"openai_config": {
"url": app.state.config.OPENAI_API_BASE_URL,
"key": app.state.config.OPENAI_API_KEY,
"batch_size": app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
},
}
@app.get("/reranking")
async def get_reraanking_config(user=Depends(get_admin_user)):
return {
"status": True,
"reranking_model": app.state.config.RAG_RERANKING_MODEL,
}
class OpenAIConfigForm(BaseModel):
url: str
key: str
batch_size: Optional[int] = None
class EmbeddingModelUpdateForm(BaseModel):
openai_config: Optional[OpenAIConfigForm] = None
embedding_engine: str
embedding_model: str
@app.post("/embedding/update")
async def update_embedding_config(
form_data: EmbeddingModelUpdateForm, user=Depends(get_admin_user)
):
log.info(
f"Updating embedding model: {app.state.config.RAG_EMBEDDING_MODEL} to {form_data.embedding_model}"
)
try:
app.state.config.RAG_EMBEDDING_ENGINE = form_data.embedding_engine
app.state.config.RAG_EMBEDDING_MODEL = form_data.embedding_model
if app.state.config.RAG_EMBEDDING_ENGINE in ["ollama", "openai"]:
if form_data.openai_config is not None:
app.state.config.OPENAI_API_BASE_URL = form_data.openai_config.url
app.state.config.OPENAI_API_KEY = form_data.openai_config.key
app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE = (
form_data.openai_config.batch_size
if form_data.openai_config.batch_size
else 1
)
update_embedding_model(app.state.config.RAG_EMBEDDING_MODEL)
app.state.EMBEDDING_FUNCTION = get_embedding_function(
app.state.config.RAG_EMBEDDING_ENGINE,
app.state.config.RAG_EMBEDDING_MODEL,
app.state.sentence_transformer_ef,
app.state.config.OPENAI_API_KEY,
app.state.config.OPENAI_API_BASE_URL,
app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
)
return {
"status": True,
"embedding_engine": app.state.config.RAG_EMBEDDING_ENGINE,
"embedding_model": app.state.config.RAG_EMBEDDING_MODEL,
"openai_config": {
"url": app.state.config.OPENAI_API_BASE_URL,
"key": app.state.config.OPENAI_API_KEY,
"batch_size": app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
},
}
except Exception as e:
log.exception(f"Problem updating embedding model: {e}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=ERROR_MESSAGES.DEFAULT(e),
)
class RerankingModelUpdateForm(BaseModel):
reranking_model: str
@app.post("/reranking/update")
async def update_reranking_config(
form_data: RerankingModelUpdateForm, user=Depends(get_admin_user)
):
log.info(
f"Updating reranking model: {app.state.config.RAG_RERANKING_MODEL} to {form_data.reranking_model}"
)
try:
app.state.config.RAG_RERANKING_MODEL = form_data.reranking_model
update_reranking_model(app.state.config.RAG_RERANKING_MODEL, True)
return {
"status": True,
"reranking_model": app.state.config.RAG_RERANKING_MODEL,
}
except Exception as e:
log.exception(f"Problem updating reranking model: {e}")
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=ERROR_MESSAGES.DEFAULT(e),
)
@app.get("/config")
async def get_rag_config(user=Depends(get_admin_user)):
return {
"status": True,
"pdf_extract_images": app.state.config.PDF_EXTRACT_IMAGES,
"file": {
"max_size": app.state.config.FILE_MAX_SIZE,
"max_count": app.state.config.FILE_MAX_COUNT,
},
"content_extraction": {
"engine": app.state.config.CONTENT_EXTRACTION_ENGINE,
"tika_server_url": app.state.config.TIKA_SERVER_URL,
},
"chunk": {
"chunk_size": app.state.config.CHUNK_SIZE,
"chunk_overlap": app.state.config.CHUNK_OVERLAP,
},
"youtube": {
"language": app.state.config.YOUTUBE_LOADER_LANGUAGE,
"translation": app.state.YOUTUBE_LOADER_TRANSLATION,
},
"web": {
"ssl_verification": app.state.config.ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION,
"search": {
"enabled": app.state.config.ENABLE_RAG_WEB_SEARCH,
"engine": app.state.config.RAG_WEB_SEARCH_ENGINE,
"searxng_query_url": app.state.config.SEARXNG_QUERY_URL,
"google_pse_api_key": app.state.config.GOOGLE_PSE_API_KEY,
"google_pse_engine_id": app.state.config.GOOGLE_PSE_ENGINE_ID,
"brave_search_api_key": app.state.config.BRAVE_SEARCH_API_KEY,
"serpstack_api_key": app.state.config.SERPSTACK_API_KEY,
"serpstack_https": app.state.config.SERPSTACK_HTTPS,
"serper_api_key": app.state.config.SERPER_API_KEY,
"serply_api_key": app.state.config.SERPLY_API_KEY,
"tavily_api_key": app.state.config.TAVILY_API_KEY,
"searchapi_api_key": app.state.config.SEARCHAPI_API_KEY,
"seaarchapi_engine": app.state.config.SEARCHAPI_ENGINE,
"result_count": app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
"concurrent_requests": app.state.config.RAG_WEB_SEARCH_CONCURRENT_REQUESTS,
},
},
}
class FileConfig(BaseModel):
max_size: Optional[int] = None
max_count: Optional[int] = None
class ContentExtractionConfig(BaseModel):
engine: str = ""
tika_server_url: Optional[str] = None
class ChunkParamUpdateForm(BaseModel):
chunk_size: int
chunk_overlap: int
class YoutubeLoaderConfig(BaseModel):
language: list[str]
translation: Optional[str] = None
class WebSearchConfig(BaseModel):
enabled: bool
engine: Optional[str] = None
searxng_query_url: Optional[str] = None
google_pse_api_key: Optional[str] = None
google_pse_engine_id: Optional[str] = None
brave_search_api_key: Optional[str] = None
serpstack_api_key: Optional[str] = None
serpstack_https: Optional[bool] = None
serper_api_key: Optional[str] = None
serply_api_key: Optional[str] = None
tavily_api_key: Optional[str] = None
searchapi_api_key: Optional[str] = None
searchapi_engine: Optional[str] = None
result_count: Optional[int] = None
concurrent_requests: Optional[int] = None
class WebConfig(BaseModel):
search: WebSearchConfig
web_loader_ssl_verification: Optional[bool] = None
class ConfigUpdateForm(BaseModel):
pdf_extract_images: Optional[bool] = None
file: Optional[FileConfig] = None
content_extraction: Optional[ContentExtractionConfig] = None
chunk: Optional[ChunkParamUpdateForm] = None
youtube: Optional[YoutubeLoaderConfig] = None
web: Optional[WebConfig] = None
@app.post("/config/update")
async def update_rag_config(form_data: ConfigUpdateForm, user=Depends(get_admin_user)):
app.state.config.PDF_EXTRACT_IMAGES = (
form_data.pdf_extract_images
if form_data.pdf_extract_images is not None
else app.state.config.PDF_EXTRACT_IMAGES
)
if form_data.file is not None:
app.state.config.FILE_MAX_SIZE = form_data.file.max_size
app.state.config.FILE_MAX_COUNT = form_data.file.max_count
if form_data.content_extraction is not None:
log.info(f"Updating text settings: {form_data.content_extraction}")
app.state.config.CONTENT_EXTRACTION_ENGINE = form_data.content_extraction.engine
app.state.config.TIKA_SERVER_URL = form_data.content_extraction.tika_server_url
if form_data.chunk is not None:
app.state.config.CHUNK_SIZE = form_data.chunk.chunk_size
app.state.config.CHUNK_OVERLAP = form_data.chunk.chunk_overlap
if form_data.youtube is not None:
app.state.config.YOUTUBE_LOADER_LANGUAGE = form_data.youtube.language
app.state.YOUTUBE_LOADER_TRANSLATION = form_data.youtube.translation
if form_data.web is not None:
app.state.config.ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION = (
form_data.web.web_loader_ssl_verification
)
app.state.config.ENABLE_RAG_WEB_SEARCH = form_data.web.search.enabled
app.state.config.RAG_WEB_SEARCH_ENGINE = form_data.web.search.engine
app.state.config.SEARXNG_QUERY_URL = form_data.web.search.searxng_query_url
app.state.config.GOOGLE_PSE_API_KEY = form_data.web.search.google_pse_api_key
app.state.config.GOOGLE_PSE_ENGINE_ID = (
form_data.web.search.google_pse_engine_id
)
app.state.config.BRAVE_SEARCH_API_KEY = (
form_data.web.search.brave_search_api_key
)
app.state.config.SERPSTACK_API_KEY = form_data.web.search.serpstack_api_key
app.state.config.SERPSTACK_HTTPS = form_data.web.search.serpstack_https
app.state.config.SERPER_API_KEY = form_data.web.search.serper_api_key
app.state.config.SERPLY_API_KEY = form_data.web.search.serply_api_key
app.state.config.TAVILY_API_KEY = form_data.web.search.tavily_api_key
app.state.config.SEARCHAPI_API_KEY = form_data.web.search.searchapi_api_key
app.state.config.SEARCHAPI_ENGINE = form_data.web.search.searchapi_engine
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT = form_data.web.search.result_count
app.state.config.RAG_WEB_SEARCH_CONCURRENT_REQUESTS = (
form_data.web.search.concurrent_requests
)
return {
"status": True,
"pdf_extract_images": app.state.config.PDF_EXTRACT_IMAGES,
"file": {
"max_size": app.state.config.FILE_MAX_SIZE,
"max_count": app.state.config.FILE_MAX_COUNT,
},
"content_extraction": {
"engine": app.state.config.CONTENT_EXTRACTION_ENGINE,
"tika_server_url": app.state.config.TIKA_SERVER_URL,
},
"chunk": {
"chunk_size": app.state.config.CHUNK_SIZE,
"chunk_overlap": app.state.config.CHUNK_OVERLAP,
},
"youtube": {
"language": app.state.config.YOUTUBE_LOADER_LANGUAGE,
"translation": app.state.YOUTUBE_LOADER_TRANSLATION,
},
"web": {
"ssl_verification": app.state.config.ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION,
"search": {
"enabled": app.state.config.ENABLE_RAG_WEB_SEARCH,
"engine": app.state.config.RAG_WEB_SEARCH_ENGINE,
"searxng_query_url": app.state.config.SEARXNG_QUERY_URL,
"google_pse_api_key": app.state.config.GOOGLE_PSE_API_KEY,
"google_pse_engine_id": app.state.config.GOOGLE_PSE_ENGINE_ID,
"brave_search_api_key": app.state.config.BRAVE_SEARCH_API_KEY,
"serpstack_api_key": app.state.config.SERPSTACK_API_KEY,
"serpstack_https": app.state.config.SERPSTACK_HTTPS,
"serper_api_key": app.state.config.SERPER_API_KEY,
"serply_api_key": app.state.config.SERPLY_API_KEY,
"serachapi_api_key": app.state.config.SEARCHAPI_API_KEY,
"searchapi_engine": app.state.config.SEARCHAPI_ENGINE,
"tavily_api_key": app.state.config.TAVILY_API_KEY,
"result_count": app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
"concurrent_requests": app.state.config.RAG_WEB_SEARCH_CONCURRENT_REQUESTS,
},
},
}
@app.get("/template")
async def get_rag_template(user=Depends(get_verified_user)):
return {
"status": True,
"template": app.state.config.RAG_TEMPLATE,
}
@app.get("/query/settings")
async def get_query_settings(user=Depends(get_admin_user)):
return {
"status": True,
"template": app.state.config.RAG_TEMPLATE,
"k": app.state.config.TOP_K,
"r": app.state.config.RELEVANCE_THRESHOLD,
"hybrid": app.state.config.ENABLE_RAG_HYBRID_SEARCH,
}
class QuerySettingsForm(BaseModel):
k: Optional[int] = None
r: Optional[float] = None
template: Optional[str] = None
hybrid: Optional[bool] = None
@app.post("/query/settings/update")
async def update_query_settings(
form_data: QuerySettingsForm, user=Depends(get_admin_user)
):
app.state.config.RAG_TEMPLATE = (
form_data.template if form_data.template else RAG_TEMPLATE
)
app.state.config.TOP_K = form_data.k if form_data.k else 4
app.state.config.RELEVANCE_THRESHOLD = form_data.r if form_data.r else 0.0
app.state.config.ENABLE_RAG_HYBRID_SEARCH = (
form_data.hybrid if form_data.hybrid else False
)
return {
"status": True,
"template": app.state.config.RAG_TEMPLATE,
"k": app.state.config.TOP_K,
"r": app.state.config.RELEVANCE_THRESHOLD,
"hybrid": app.state.config.ENABLE_RAG_HYBRID_SEARCH,
}
class QueryDocForm(BaseModel):
collection_name: str
query: str
k: Optional[int] = None
r: Optional[float] = None
hybrid: Optional[bool] = None
@app.post("/query/doc")
def query_doc_handler(
form_data: QueryDocForm,
user=Depends(get_verified_user),
):
try:
if app.state.config.ENABLE_RAG_HYBRID_SEARCH:
return query_doc_with_hybrid_search(
collection_name=form_data.collection_name,
query=form_data.query,
embedding_function=app.state.EMBEDDING_FUNCTION,
k=form_data.k if form_data.k else app.state.config.TOP_K,
reranking_function=app.state.sentence_transformer_rf,
r=(
form_data.r if form_data.r else app.state.config.RELEVANCE_THRESHOLD
),
)
else:
return query_doc(
collection_name=form_data.collection_name,
query=form_data.query,
embedding_function=app.state.EMBEDDING_FUNCTION,
k=form_data.k if form_data.k else app.state.config.TOP_K,
)
except Exception as e:
log.exception(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
class QueryCollectionsForm(BaseModel):
collection_names: list[str]
query: str
k: Optional[int] = None
r: Optional[float] = None
hybrid: Optional[bool] = None
@app.post("/query/collection")
def query_collection_handler(
form_data: QueryCollectionsForm,
user=Depends(get_verified_user),
):
try:
if app.state.config.ENABLE_RAG_HYBRID_SEARCH:
return query_collection_with_hybrid_search(
collection_names=form_data.collection_names,
query=form_data.query,
embedding_function=app.state.EMBEDDING_FUNCTION,
k=form_data.k if form_data.k else app.state.config.TOP_K,
reranking_function=app.state.sentence_transformer_rf,
r=(
form_data.r if form_data.r else app.state.config.RELEVANCE_THRESHOLD
),
)
else:
return query_collection(
collection_names=form_data.collection_names,
query=form_data.query,
embedding_function=app.state.EMBEDDING_FUNCTION,
k=form_data.k if form_data.k else app.state.config.TOP_K,
)
except Exception as e:
log.exception(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
@app.post("/youtube")
def store_youtube_video(form_data: UrlForm, user=Depends(get_verified_user)):
try:
loader = YoutubeLoader.from_youtube_url(
form_data.url,
add_video_info=True,
language=app.state.config.YOUTUBE_LOADER_LANGUAGE,
translation=app.state.YOUTUBE_LOADER_TRANSLATION,
)
data = loader.load()
collection_name = form_data.collection_name
if collection_name == "":
collection_name = calculate_sha256_string(form_data.url)[:63]
store_data_in_vector_db(data, collection_name, overwrite=True)
return {
"status": True,
"collection_name": collection_name,
"filename": form_data.url,
}
except Exception as e:
log.exception(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
@app.post("/web")
def store_web(form_data: UrlForm, user=Depends(get_verified_user)):
# "https://www.gutenberg.org/files/1727/1727-h/1727-h.htm"
try:
loader = get_web_loader(
form_data.url,
verify_ssl=app.state.config.ENABLE_RAG_WEB_LOADER_SSL_VERIFICATION,
)
data = loader.load()
collection_name = form_data.collection_name
if collection_name == "":
collection_name = calculate_sha256_string(form_data.url)[:63]
store_data_in_vector_db(data, collection_name, overwrite=True)
return {
"status": True,
"collection_name": collection_name,
"filename": form_data.url,
}
except Exception as e:
log.exception(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
def get_web_loader(url: Union[str, Sequence[str]], verify_ssl: bool = True):
# Check if the URL is valid
if not validate_url(url):
raise ValueError(ERROR_MESSAGES.INVALID_URL)
return SafeWebBaseLoader(
url,
verify_ssl=verify_ssl,
requests_per_second=RAG_WEB_SEARCH_CONCURRENT_REQUESTS,
continue_on_failure=True,
)
def validate_url(url: Union[str, Sequence[str]]):
if isinstance(url, str):
if isinstance(validators.url(url), validators.ValidationError):
raise ValueError(ERROR_MESSAGES.INVALID_URL)
if not ENABLE_RAG_LOCAL_WEB_FETCH:
# Local web fetch is disabled, filter out any URLs that resolve to private IP addresses
parsed_url = urllib.parse.urlparse(url)
# Get IPv4 and IPv6 addresses
ipv4_addresses, ipv6_addresses = resolve_hostname(parsed_url.hostname)
# Check if any of the resolved addresses are private
# This is technically still vulnerable to DNS rebinding attacks, as we don't control WebBaseLoader
for ip in ipv4_addresses:
if validators.ipv4(ip, private=True):
raise ValueError(ERROR_MESSAGES.INVALID_URL)
for ip in ipv6_addresses:
if validators.ipv6(ip, private=True):
raise ValueError(ERROR_MESSAGES.INVALID_URL)
return True
elif isinstance(url, Sequence):
return all(validate_url(u) for u in url)
else:
return False
def resolve_hostname(hostname):
# Get address information
addr_info = socket.getaddrinfo(hostname, None)
# Extract IP addresses from address information
ipv4_addresses = [info[4][0] for info in addr_info if info[0] == socket.AF_INET]
ipv6_addresses = [info[4][0] for info in addr_info if info[0] == socket.AF_INET6]
return ipv4_addresses, ipv6_addresses
def search_web(engine: str, query: str) -> list[SearchResult]:
"""Search the web using a search engine and return the results as a list of SearchResult objects.
Will look for a search engine API key in environment variables in the following order:
- SEARXNG_QUERY_URL
- GOOGLE_PSE_API_KEY + GOOGLE_PSE_ENGINE_ID
- BRAVE_SEARCH_API_KEY
- SERPSTACK_API_KEY
- SERPER_API_KEY
- SERPLY_API_KEY
- TAVILY_API_KEY
- SEARCHAPI_API_KEY + SEARCHAPI_ENGINE (by default `google`)
Args:
query (str): The query to search for
"""
# TODO: add playwright to search the web
if engine == "searxng":
if app.state.config.SEARXNG_QUERY_URL:
return search_searxng(
app.state.config.SEARXNG_QUERY_URL,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception("No SEARXNG_QUERY_URL found in environment variables")
elif engine == "google_pse":
if (
app.state.config.GOOGLE_PSE_API_KEY
and app.state.config.GOOGLE_PSE_ENGINE_ID
):
return search_google_pse(
app.state.config.GOOGLE_PSE_API_KEY,
app.state.config.GOOGLE_PSE_ENGINE_ID,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception(
"No GOOGLE_PSE_API_KEY or GOOGLE_PSE_ENGINE_ID found in environment variables"
)
elif engine == "brave":
if app.state.config.BRAVE_SEARCH_API_KEY:
return search_brave(
app.state.config.BRAVE_SEARCH_API_KEY,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception("No BRAVE_SEARCH_API_KEY found in environment variables")
elif engine == "serpstack":
if app.state.config.SERPSTACK_API_KEY:
return search_serpstack(
app.state.config.SERPSTACK_API_KEY,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
https_enabled=app.state.config.SERPSTACK_HTTPS,
)
else:
raise Exception("No SERPSTACK_API_KEY found in environment variables")
elif engine == "serper":
if app.state.config.SERPER_API_KEY:
return search_serper(
app.state.config.SERPER_API_KEY,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception("No SERPER_API_KEY found in environment variables")
elif engine == "serply":
if app.state.config.SERPLY_API_KEY:
return search_serply(
app.state.config.SERPLY_API_KEY,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception("No SERPLY_API_KEY found in environment variables")
elif engine == "duckduckgo":
return search_duckduckgo(
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
elif engine == "tavily":
if app.state.config.TAVILY_API_KEY:
return search_tavily(
app.state.config.TAVILY_API_KEY,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
)
else:
raise Exception("No TAVILY_API_KEY found in environment variables")
elif engine == "searchapi":
if app.state.config.SEARCHAPI_API_KEY:
return search_searchapi(
app.state.config.SEARCHAPI_API_KEY,
app.state.config.SEARCHAPI_ENGINE,
query,
app.state.config.RAG_WEB_SEARCH_RESULT_COUNT,
app.state.config.RAG_WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception("No SEARCHAPI_API_KEY found in environment variables")
elif engine == "jina":
return search_jina(query, app.state.config.RAG_WEB_SEARCH_RESULT_COUNT)
else:
raise Exception("No search engine API key found in environment variables")
@app.post("/web/search")
def store_web_search(form_data: SearchForm, user=Depends(get_verified_user)):
try:
logging.info(
f"trying to web search with {app.state.config.RAG_WEB_SEARCH_ENGINE, form_data.query}"
)
web_results = search_web(
app.state.config.RAG_WEB_SEARCH_ENGINE, form_data.query
)
except Exception as e:
log.exception(e)
print(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.WEB_SEARCH_ERROR(e),
)
try:
urls = [result.link for result in web_results]
loader = get_web_loader(urls)
data = loader.load()
collection_name = form_data.collection_name
if collection_name == "":
collection_name = calculate_sha256_string(form_data.query)[:63]
store_data_in_vector_db(data, collection_name, overwrite=True)
return {
"status": True,
"collection_name": collection_name,
"filenames": urls,
}
except Exception as e:
log.exception(e)
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
def store_data_in_vector_db(
data, collection_name, metadata: Optional[dict] = None, overwrite: bool = False
) -> bool:
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=app.state.config.CHUNK_SIZE,
chunk_overlap=app.state.config.CHUNK_OVERLAP,
add_start_index=True,
)
docs = text_splitter.split_documents(data)
if len(docs) > 0:
log.info(f"store_data_in_vector_db {docs}")
return store_docs_in_vector_db(docs, collection_name, metadata, overwrite), None
else:
raise ValueError(ERROR_MESSAGES.EMPTY_CONTENT)
def store_text_in_vector_db(
text, metadata, collection_name, overwrite: bool = False
) -> bool:
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=app.state.config.CHUNK_SIZE,
chunk_overlap=app.state.config.CHUNK_OVERLAP,
add_start_index=True,
)
docs = text_splitter.create_documents([text], metadatas=[metadata])
return store_docs_in_vector_db(docs, collection_name, overwrite=overwrite)
def store_docs_in_vector_db(
docs, collection_name, metadata: Optional[dict] = None, overwrite: bool = False
) -> bool:
log.info(f"store_docs_in_vector_db {docs} {collection_name}")
texts = [doc.page_content for doc in docs]
metadatas = [{**doc.metadata, **(metadata if metadata else {})} for doc in docs]
# ChromaDB does not like datetime formats
# for meta-data so convert them to string.
for metadata in metadatas:
for key, value in metadata.items():
if isinstance(value, datetime):
metadata[key] = str(value)
try:
if overwrite:
for collection in CHROMA_CLIENT.list_collections():
if collection_name == collection.name:
log.info(f"deleting existing collection {collection_name}")
CHROMA_CLIENT.delete_collection(name=collection_name)
collection = CHROMA_CLIENT.create_collection(name=collection_name)
embedding_func = get_embedding_function(
app.state.config.RAG_EMBEDDING_ENGINE,
app.state.config.RAG_EMBEDDING_MODEL,
app.state.sentence_transformer_ef,
app.state.config.OPENAI_API_KEY,
app.state.config.OPENAI_API_BASE_URL,
app.state.config.RAG_EMBEDDING_OPENAI_BATCH_SIZE,
)
embedding_texts = list(map(lambda x: x.replace("\n", " "), texts))
embeddings = embedding_func(embedding_texts)
for batch in create_batches(
api=CHROMA_CLIENT,
ids=[str(uuid.uuid4()) for _ in texts],
metadatas=metadatas,
embeddings=embeddings,
documents=texts,
):
collection.add(*batch)
return True
except Exception as e:
if e.__class__.__name__ == "UniqueConstraintError":
return True
log.exception(e)
return False
class TikaLoader:
def __init__(self, file_path, mime_type=None):
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()
if self.mime_type is not None:
headers = {"Content-Type": self.mime_type}
else:
headers = {}
endpoint = app.state.config.TIKA_SERVER_URL
if not endpoint.endswith("/"):
endpoint += "/"
endpoint += "tika/text"
r = requests.put(endpoint, data=data, headers=headers)
if r.ok:
raw_metadata = r.json()
text = raw_metadata.get("X-TIKA:content", "<No text content found>")
if "Content-Type" in raw_metadata:
headers["Content-Type"] = raw_metadata["Content-Type"]
log.info("Tika extracted text: %s", text)
return [Document(page_content=text, metadata=headers)]
else:
raise Exception(f"Error calling Tika: {r.reason}")
def get_loader(filename: str, file_content_type: str, file_path: str):
file_ext = filename.split(".")[-1].lower()
known_type = True
known_source_ext = [
"go",
"py",
"java",
"sh",
"bat",
"ps1",
"cmd",
"js",
"ts",
"css",
"cpp",
"hpp",
"h",
"c",
"cs",
"sql",
"log",
"ini",
"pl",
"pm",
"r",
"dart",
"dockerfile",
"env",
"php",
"hs",
"hsc",
"lua",
"nginxconf",
"conf",
"m",
"mm",
"plsql",
"perl",
"rb",
"rs",
"db2",
"scala",
"bash",
"swift",
"vue",
"svelte",
"msg",
"ex",
"exs",
"erl",
"tsx",
"jsx",
"hs",
"lhs",
]
if (
app.state.config.CONTENT_EXTRACTION_ENGINE == "tika"
and app.state.config.TIKA_SERVER_URL
):
if file_ext in known_source_ext or (
file_content_type and file_content_type.find("text/") >= 0
):
loader = TextLoader(file_path, autodetect_encoding=True)
else:
loader = TikaLoader(file_path, file_content_type)
else:
if file_ext == "pdf":
loader = PyPDFLoader(
file_path, extract_images=app.state.config.PDF_EXTRACT_IMAGES
)
elif file_ext == "csv":
loader = CSVLoader(file_path)
elif file_ext == "rst":
loader = UnstructuredRSTLoader(file_path, mode="elements")
elif file_ext == "xml":
loader = UnstructuredXMLLoader(file_path)
elif file_ext in ["htm", "html"]:
loader = BSHTMLLoader(file_path, open_encoding="unicode_escape")
elif file_ext == "md":
loader = UnstructuredMarkdownLoader(file_path)
elif file_content_type == "application/epub+zip":
loader = UnstructuredEPubLoader(file_path)
elif (
file_content_type
== "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
or file_ext in ["doc", "docx"]
):
loader = Docx2txtLoader(file_path)
elif file_content_type in [
"application/vnd.ms-excel",
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
] or file_ext in ["xls", "xlsx"]:
loader = UnstructuredExcelLoader(file_path)
elif file_content_type in [
"application/vnd.ms-powerpoint",
"application/vnd.openxmlformats-officedocument.presentationml.presentation",
] or file_ext in ["ppt", "pptx"]:
loader = UnstructuredPowerPointLoader(file_path)
elif file_ext == "msg":
loader = OutlookMessageLoader(file_path)
elif file_ext in known_source_ext or (
file_content_type and file_content_type.find("text/") >= 0
):
loader = TextLoader(file_path, autodetect_encoding=True)
else:
loader = TextLoader(file_path, autodetect_encoding=True)
known_type = False
return loader, known_type
@app.post("/doc")
def store_doc(
collection_name: Optional[str] = Form(None),
file: UploadFile = File(...),
user=Depends(get_verified_user),
):
# "https://www.gutenberg.org/files/1727/1727-h/1727-h.htm"
log.info(f"file.content_type: {file.content_type}")
try:
unsanitized_filename = file.filename
filename = os.path.basename(unsanitized_filename)
file_path = f"{UPLOAD_DIR}/{filename}"
contents = file.file.read()
with open(file_path, "wb") as f:
f.write(contents)
f.close()
f = open(file_path, "rb")
if collection_name is None:
collection_name = calculate_sha256(f)[:63]
f.close()
loader, known_type = get_loader(filename, file.content_type, file_path)
data = loader.load()
try:
result = store_data_in_vector_db(data, collection_name)
if result:
return {
"status": True,
"collection_name": collection_name,
"filename": filename,
"known_type": known_type,
}
except Exception as e:
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=e,
)
except Exception as e:
log.exception(e)
if "No pandoc was found" in str(e):
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.PANDOC_NOT_INSTALLED,
)
else:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
class ProcessDocForm(BaseModel):
file_id: str
collection_name: Optional[str] = None
@app.post("/process/doc")
def process_doc(
form_data: ProcessDocForm,
user=Depends(get_verified_user),
):
try:
file = Files.get_file_by_id(form_data.file_id)
file_path = file.meta.get("path", f"{UPLOAD_DIR}/{file.filename}")
f = open(file_path, "rb")
collection_name = form_data.collection_name
if collection_name is None:
collection_name = calculate_sha256(f)[:63]
f.close()
loader, known_type = get_loader(
file.filename, file.meta.get("content_type"), file_path
)
data = loader.load()
try:
result = store_data_in_vector_db(
data,
collection_name,
{
"file_id": form_data.file_id,
"name": file.meta.get("name", file.filename),
},
)
if result:
return {
"status": True,
"collection_name": collection_name,
"known_type": known_type,
"filename": file.meta.get("name", file.filename),
}
except Exception as e:
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=e,
)
except Exception as e:
log.exception(e)
if "No pandoc was found" in str(e):
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.PANDOC_NOT_INSTALLED,
)
else:
raise HTTPException(
status_code=status.HTTP_400_BAD_REQUEST,
detail=ERROR_MESSAGES.DEFAULT(e),
)
class TextRAGForm(BaseModel):
name: str
content: str
collection_name: Optional[str] = None
@app.post("/text")
def store_text(
form_data: TextRAGForm,
user=Depends(get_verified_user),
):
collection_name = form_data.collection_name
if collection_name is None:
collection_name = calculate_sha256_string(form_data.content)
result = store_text_in_vector_db(
form_data.content,
metadata={"name": form_data.name, "created_by": user.id},
collection_name=collection_name,
)
if result:
return {"status": True, "collection_name": collection_name}
else:
raise HTTPException(
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
detail=ERROR_MESSAGES.DEFAULT(),
)
@app.get("/scan")
def scan_docs_dir(user=Depends(get_admin_user)):
for path in Path(DOCS_DIR).rglob("./**/*"):
try:
if path.is_file() and not path.name.startswith("."):
tags = extract_folders_after_data_docs(path)
filename = path.name
file_content_type = mimetypes.guess_type(path)
f = open(path, "rb")
collection_name = calculate_sha256(f)[:63]
f.close()
loader, known_type = get_loader(
filename, file_content_type[0], str(path)
)
data = loader.load()
try:
result = store_data_in_vector_db(data, collection_name)
if result:
sanitized_filename = sanitize_filename(filename)
doc = Documents.get_doc_by_name(sanitized_filename)
if doc is None:
doc = Documents.insert_new_doc(
user.id,
DocumentForm(
**{
"name": sanitized_filename,
"title": filename,
"collection_name": collection_name,
"filename": filename,
"content": (
json.dumps(
{
"tags": list(
map(
lambda name: {"name": name},
tags,
)
)
}
)
if len(tags)
else "{}"
),
}
),
)
except Exception as e:
log.exception(e)
pass
except Exception as e:
log.exception(e)
return True
@app.post("/reset/db")
def reset_vector_db(user=Depends(get_admin_user)):
CHROMA_CLIENT.reset()
@app.post("/reset/uploads")
def reset_upload_dir(user=Depends(get_admin_user)) -> bool:
folder = f"{UPLOAD_DIR}"
try:
# Check if the directory exists
if os.path.exists(folder):
# Iterate over all the files and directories in the specified directory
for filename in os.listdir(folder):
file_path = os.path.join(folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_path) # Remove the file or link
elif os.path.isdir(file_path):
shutil.rmtree(file_path) # Remove the directory
except Exception as e:
print(f"Failed to delete {file_path}. Reason: {e}")
else:
print(f"The directory {folder} does not exist")
except Exception as e:
print(f"Failed to process the directory {folder}. Reason: {e}")
return True
@app.post("/reset")
def reset(user=Depends(get_admin_user)) -> bool:
folder = f"{UPLOAD_DIR}"
for filename in os.listdir(folder):
file_path = os.path.join(folder, filename)
try:
if os.path.isfile(file_path) or os.path.islink(file_path):
os.unlink(file_path)
elif os.path.isdir(file_path):
shutil.rmtree(file_path)
except Exception as e:
log.error("Failed to delete %s. Reason: %s" % (file_path, e))
try:
CHROMA_CLIENT.reset()
except Exception as e:
log.exception(e)
return True
class SafeWebBaseLoader(WebBaseLoader):
"""WebBaseLoader with enhanced error handling for URLs."""
def lazy_load(self) -> Iterator[Document]:
"""Lazy load text from the url(s) in web_path with error handling."""
for path in self.web_paths:
try:
soup = self._scrape(path, bs_kwargs=self.bs_kwargs)
text = soup.get_text(**self.bs_get_text_kwargs)
# Build metadata
metadata = {"source": path}
if title := soup.find("title"):
metadata["title"] = title.get_text()
if description := soup.find("meta", attrs={"name": "description"}):
metadata["description"] = description.get(
"content", "No description found."
)
if html := soup.find("html"):
metadata["language"] = html.get("lang", "No language found.")
yield Document(page_content=text, metadata=metadata)
except Exception as e:
# Log the error and continue with the next URL
log.error(f"Error loading {path}: {e}")
if ENV == "dev":
@app.get("/ef")
async def get_embeddings():
return {"result": app.state.EMBEDDING_FUNCTION("hello world")}
@app.get("/ef/{text}")
async def get_embeddings_text(text: str):
return {"result": app.state.EMBEDDING_FUNCTION(text)}