[feat] autocomplete: add privacywall autocompleter (#6211)

docs/admin/settings/settings_search.rst

@@ -43,6 +43,7 @@
   - ``google``
   - ``mwmbl``
   - ``naver``
+  - ``privacywall``
   - ``quark``
   - ``qwant``
   - ``seznam``

docs/dev/search_api.rst

@@ -87,7 +87,7 @@ Parameters
 
 ``autocomplete`` : default from :ref:`settings search`
   [ ``google``, ``dbpedia``, ``duckduckgo``, ``mwmbl``, ``startpage``,
-  ``wikipedia``, ``swisscows``, ``qwant`` ]
+  ``privacywall``, ``wikipedia``, ``swisscows``, ``qwant`` ]
 
   Service which completes words as you type.
 

searx/autocomplete.py

@@ -179,6 +179,23 @@ def naver(query: str, _sxng_locale: str) -> list[str]:
     return results
 
 
+def privacywall(query: str, sxng_locale: str) -> list[str]:
+    # Privacywall search autocompleter
+    country = None
+    if "-" in sxng_locale:
+        country = sxng_locale.split("-")[1]
+    args = {'q': query, 'cc': country}
+
+    url = f"https://www.privacywall.org/search/secure/suggestions.php?{urlencode(args)}"
+    response = get(url)
+
+    if not response.ok:
+        return []
+
+    data: list[list[str]] = response.json()
+    return data[1]
+
+
 def qihu360search(query: str, _sxng_locale: str) -> list[str]:
     # 360Search search autocompleter
     url = f"https://sug.so.360.cn/suggest?{urlencode({'format': 'json', 'word': query})}"
@@ -361,6 +378,7 @@ backends: dict[str, t.Callable[[str, str], list[str]]] = {
     'google': google_complete,
     'mwmbl': mwmbl,
     'naver': naver,
+    'privacywall': privacywall,
     'quark': quark,
     'qwant': qwant,
     'seznam': seznam,

searx/settings.yml

@@ -41,8 +41,8 @@ search:
   # Filter results. 0: None, 1: Moderate, 2: Strict
   safe_search: 0
   # Existing autocomplete backends: "360search", "baidu", "bing", "brave", "dbpedia", "duckduckgo", "google",
-  # "yandex", "mwmbl", "naver", "seznam", "sogou", "startpage", "swisscows", "quark", "qwant", "wikipedia" -
-  # leave blank to turn it off by default.
+  # "yandex", "privacywall", "mwmbl", "naver", "seznam", "sogou", "startpage", "swisscows", "quark", "qwant",
+  # "wikipedia" - leave blank to turn it off by default.
   autocomplete: ""
   # minimun characters to type before autocompleter starts
   autocomplete_min: 4