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feat: add OpenSERP self-hosted web search backend (#27437)

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Add self-hosted OpenSERP as a web search engine option. OpenSERP
provides browser-rendered search across Google, Bing, Yandex, Baidu,
DuckDuckGo, and Ecosia with no API keys required.

- New module: retrieval/web/openserp.py (async, uses aiohttp session pool)
- Config: OPENSERP_BASE_URL env var (defaults to http://localhost:7070)
- Routing: search_web() dispatch for 'openserp' engine
- Follows existing patterns (searxng, brave)

Co-authored-by: crustopher-lgtm <crustopher-lgtm@users.noreply.github.com>
This commit is contained in:
crustopher-lgtmandcrustopher-lgtm authored and GitHub committed 2026-07-26 18:52:08 -04:00
1 parent 42ea8a5a2f
commit 5efe0951d5
3 files changed
+63
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backend/open_webui/routers/retrieval.py
+16
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@@ -101,6 +101,7 @@ from open_webui.retrieval.web.ollama import search_ollama_cloud
from open_webui.retrieval.web.perplexity import search_perplexity
from open_webui.retrieval.web.perplexity_search import search_perplexity_search
from open_webui.retrieval.web.searchapi import search_searchapi
from open_webui.retrieval.web.openserp import search_openserp
from open_webui.retrieval.web.searxng import search_searxng
from open_webui.retrieval.web.serpapi import search_serpapi
from open_webui.retrieval.web.serper import search_serper
@@ -365,6 +366,7 @@ RETRIEVAL_CONFIG_KEYS = {
'SEARCHAPI_ENGINE': 'web.search.searchapi_engine',
'SEARXNG_LANGUAGE': 'web.search.searxng_language',
'SEARXNG_QUERY_URL': 'web.search.searxng_query_url',
'OPENSERP_BASE_URL': 'web.search.openserp_base_url',
'SERPAPI_API_KEY': 'web.search.serpapi_api_key',
'SERPAPI_ENGINE': 'web.search.serpapi_engine',
'SERPER_API_KEY': 'web.search.serper_api_key',
@@ -703,6 +705,7 @@ async def get_rag_config(request: Request, user=Depends(get_admin_user)):
'OLLAMA_CLOUD_WEB_SEARCH_API_KEY': config.OLLAMA_CLOUD_WEB_SEARCH_API_KEY,
'SEARXNG_QUERY_URL': config.SEARXNG_QUERY_URL,
'SEARXNG_LANGUAGE': config.SEARXNG_LANGUAGE,
'OPENSERP_BASE_URL': config.OPENSERP_BASE_URL,
'YACY_QUERY_URL': config.YACY_QUERY_URL,
'YACY_USERNAME': config.YACY_USERNAME,
'YACY_PASSWORD': config.YACY_PASSWORD,
@@ -781,6 +784,7 @@ class WebConfig(BaseModel):
OLLAMA_CLOUD_WEB_SEARCH_API_KEY: str | None = None
SEARXNG_QUERY_URL: str | None = None
SEARXNG_LANGUAGE: str | None = None
OPENSERP_BASE_URL: str | None = None
YACY_QUERY_URL: str | None = None
YACY_USERNAME: str | None = None
YACY_PASSWORD: str | None = None
@@ -1249,6 +1253,7 @@ async def update_rag_config(request: Request, form_data: ConfigForm, user=Depend
config.OLLAMA_CLOUD_WEB_SEARCH_API_KEY = form_data.web.OLLAMA_CLOUD_WEB_SEARCH_API_KEY
config.SEARXNG_QUERY_URL = form_data.web.SEARXNG_QUERY_URL
config.SEARXNG_LANGUAGE = form_data.web.SEARXNG_LANGUAGE
config.OPENSERP_BASE_URL = form_data.web.OPENSERP_BASE_URL
config.YACY_QUERY_URL = form_data.web.YACY_QUERY_URL
config.YACY_USERNAME = form_data.web.YACY_USERNAME
config.YACY_PASSWORD = form_data.web.YACY_PASSWORD
@@ -1400,6 +1405,7 @@ async def update_rag_config(request: Request, form_data: ConfigForm, user=Depend
'OLLAMA_CLOUD_WEB_SEARCH_API_KEY': config.OLLAMA_CLOUD_WEB_SEARCH_API_KEY,
'SEARXNG_QUERY_URL': config.SEARXNG_QUERY_URL,
'SEARXNG_LANGUAGE': config.SEARXNG_LANGUAGE,
'OPENSERP_BASE_URL': config.OPENSERP_BASE_URL,
'YACY_QUERY_URL': config.YACY_QUERY_URL,
'YACY_USERNAME': config.YACY_USERNAME,
'YACY_PASSWORD': config.YACY_PASSWORD,
@@ -2212,6 +2218,16 @@ async def search_web(request: Request, engine: str, query: str, user=None) -> li
)
else:
raise Exception('No SEARXNG_QUERY_URL found in environment variables')
elif engine == 'openserp':
if config.OPENSERP_BASE_URL:
return await search_openserp(
config.OPENSERP_BASE_URL,
query,
config.WEB_SEARCH_RESULT_COUNT,
config.WEB_SEARCH_DOMAIN_FILTER_LIST,
)
else:
raise Exception('No OPENSERP_BASE_URL found in environment variables')
elif engine == 'yacy':
if config.YACY_QUERY_URL:
return await asyncio.to_thread(