1 files changed, 111 insertions, 0 deletions
diff --git a/config/services/web/searx/engines.nix b/config/services/web/searx/engines.nix
new file mode 100644
index 0000000..69cc861
--- /dev/null
+++ b/config/services/web/searx/engines.nix
@@ -0,0 +1,111 @@
+{ lib, ... }:
+
+with lib;
+let
+  overrideDisabled =
+    value: names:
+    map (name: {
+      inherit name;
+      disabled = value;
+    }) names;
+  enable = overrideDisabled false;
+  disable = overrideDisabled true;
+
+  makeSearchUrl =
+    {
+      baseUrl,
+      queryKeyword ? "query",
+      pageKeyword ? null,
+      preventRedirect ? false,
+      extraParameters ? { },
+    }:
+    baseUrl
+    + "?${queryKeyword}={query}"
+    # an invisible whitespace is added at the end of the query to prevent redirections
+    + (optionalString preventRedirect "%E2%80%8E")
+    + (optionalString (pageKeyword != null) "&${pageKeyword}={pageno}")
+    + (concatStrings (
+      mapAttrsToList (name: value: "&${name}=${builtins.toString value}") extraParameters
+    ));
+
+  wikipediaSearch = lang: {
+    name = "wikipedia search ${lang}";
+    engine = "xpath";
+    search_url = makeSearchUrl {
+      baseUrl = "https://${lang}.wikipedia.org/w/index.php";
+      queryKeyword = "search";
+      extraParameters = {
+        fulltext = 1;
+      };
+    };
+    results_xpath = ''//ul[@class="mw-search-results"]/li'';
+    url_xpath = ''.//div[@class="mw-search-result-heading"]/a/@href'';
+    title_xpath = ''.//div[@class="mw-search-result-heading"]/a/@title'';
+    content_xpath = ''.//div[@class="searchresult"]'';
+    shortcut = "w${lang}";
+    categories = "general";
+    disabled = true;
+    about = {
+      website = "https://${lang}.wikipedia.org/";
+      wikidata_id = "Q52";
+      official_api_documentation = "https://${lang}.wikipedia.org/api/";
+      use_official_api = false;
+      require_api_key = false;
+      results = "HTML";
+    };
+  };
+in
+{
+  services.searx.settings.engines =
+    (disable [
+      # general
+      "bing"
+      "brave"
+      "currency"
+      "dictzone"
+      "google"
+      # files
+      "btdigg"
+      # images
+      "openverse"
+      "bing images"
+      "library of congress"
+      "qwant images"
+      # it
+      "hoogle"
+      # map
+      "photon"
+    ])
+    ++ (enable [
+      # general
+      "duckduckgo"
+      "startpage"
+    ])
+    ++ [
+      {
+        name = "nlab";
+        engine = "xpath";
+        search_url = makeSearchUrl { baseUrl = "https://ncatlab.org/nlab/search"; };
+        results_xpath = "//li/a";
+        url_xpath = "./@href";
+        title_xpath = ".";
+        content_xpath = ".";
+        shortcut = "nlab";
+        timeout = 10.0;
+        categories = "science";
+        disabled = true;
+        about = {
+          website = "https://ncatlab.org/";
+          wikidata_id = "Q6954693";
+          official_api_documentation = "";
+          use_official_api = false;
+          require_api_key = false;
+          results = "HTML";
+        };
+      }
+    ]
+    ++ (map wikipediaSearch [
+      "fr"
+      "en"
+    ]);
+}