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import logging
from typing import Optional
import requests
from open_webui.retrieval.web.main import SearchResult, get_filtered_results
from open_webui.env import SRC_LOG_LEVELS
log = logging.getLogger(__name__)
log.setLevel(SRC_LOG_LEVELS["RAG"])
def search_google_pse(
api_key: str,
search_engine_id: str,
query: str,
count: int,
filter_list: Optional[list[str]] = None,
) -> list[SearchResult]:
"""Search using Google's Programmable Search Engine API and return the results as a list of SearchResult objects.
Handles pagination for counts greater than 10.
Args:
api_key (str): A Programmable Search Engine API key
search_engine_id (str): A Programmable Search Engine ID
query (str): The query to search for
count (int): The number of results to return (max 100, as PSE max results per query is 10 and max page is 10)
filter_list (Optional[list[str]], optional): A list of keywords to filter out from results. Defaults to None.
Returns:
list[SearchResult]: A list of SearchResult objects.
"""
url = "https://www.googleapis.com/customsearch/v1"
headers = {"Content-Type": "application/json"}
all_results = []
start_index = 1 # Google PSE start parameter is 1-based
while count > 0:
num_results_this_page = min(count, 10) # Google PSE max results per page is 10
params = {
"cx": search_engine_id,
"q": query,
"key": api_key,
"num": num_results_this_page,
"start": start_index,
}
response = requests.request("GET", url, headers=headers, params=params)
response.raise_for_status()
json_response = response.json()
results = json_response.get("items", [])
if results: # check if results are returned. If not, no more pages to fetch.
all_results.extend(results)
count -= len(
results
) # Decrement count by the number of results fetched in this page.
start_index += 10 # Increment start index for the next page
else:
break # No more results from Google PSE, break the loop
if filter_list:
all_results = get_filtered_results(all_results, filter_list)
return [
SearchResult(
link=result["link"],
title=result.get("title"),
snippet=result.get("snippet"),
)
for result in all_results
]
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