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fix: robustly detect HTTP proxy for DuckDuckGo search across ddgs versions

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The previous proxy detection only read lowercase https_proxy/http_proxy env
vars and passed them to DDGS(proxy=...). This broke silently when the ddgs
package was updated (open-webui:main image repulled): newer versions use a
different internal httpx client configuration that requires uppercase env vars
(HTTPS_PROXY/HTTP_PROXY) to reliably pick up proxy settings.

Changes:
- Read proxy from all four env var variants (https_proxy, HTTPS_PROXY,
  http_proxy, HTTP_PROXY) with lowercase taking priority.
- Use os.environ.setdefault() to ensure uppercase HTTPS_PROXY/HTTP_PROXY are
  set before DDGS is instantiated, so httpx picks up the proxy automatically
  regardless of which ddgs version is installed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
imoes 2026-04-16 20:07:37 +02:00
parent 4b610a3e1c
commit cfca838549
1 changed files with 12 additions and 1 deletions
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13
backend/open_webui/retrieval/web/duckduckgo.py
View file

@ -26,7 +26,18 @@ def search_duckduckgo(
Returns:
list[SearchResult]: A list of search results
"""
proxy = os.environ.get("https_proxy") or os.environ.get("http_proxy")
proxy = (
os.environ.get("https_proxy")
or os.environ.get("HTTPS_PROXY")
or os.environ.get("http_proxy")
or os.environ.get("HTTP_PROXY")
)
# httpx (used internally by ddgs) reliably reads uppercase env vars;
# ensure they are set so the proxy is picked up regardless of ddgs version
if proxy:
os.environ.setdefault("HTTPS_PROXY", proxy)
os.environ.setdefault("HTTP_PROXY", proxy)
# Use the DDGS context manager to create a DDGS object
search_results = []
with DDGS(proxy=proxy) as ddgs: