Merge pull request #260 from neon-mmd/feat-inform-user-when-no-engines-are-selected

✨ Inform user with appropriate error message when none of the engines are selected

Cargo.lock

@@ -510,7 +510,7 @@ checksum = "4acbb09d9ee8e23699b9634375c72795d095bf268439da88562cf9b501f181fa"
 dependencies = [
  "camino",
  "cargo-platform",
- "semver 1.0.18",
+ "semver 1.0.19",
  "serde",
  "serde_json",
 ]
@@ -2864,7 +2864,7 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
 dependencies = [
- "semver 1.0.18",
+ "semver 1.0.19",
 ]
 
 [[package]]
@@ -3002,9 +3002,9 @@ dependencies = [
 
 [[package]]
 name = "semver"
-version = "1.0.18"
+version = "1.0.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b0293b4b29daaf487284529cc2f5675b8e57c61f70167ba415a463651fd6a918"
+checksum = "ad977052201c6de01a8ef2aa3378c4bd23217a056337d1d6da40468d267a4fb0"
 dependencies = [
  "serde",
 ]
@@ -3932,7 +3932,7 @@ dependencies = [
 
 [[package]]
 name = "websurfx"
-version = "0.22.0"
+version = "0.23.0"
 dependencies = [
  "actix-cors",
  "actix-files",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "websurfx"
-version = "0.22.0"
+version = "0.23.0"
 edition = "2021"
 description = "An open-source alternative to Searx that provides clean, ad-free, and organic results with incredible speed while keeping privacy and security in mind."
 repository = "https://github.com/neon-mmd/websurfx"

public/static/themes/simple.css

@@ -155,7 +155,8 @@ body {
   height: 1.2rem;
 }
 .results .result_disallowed,
-.results .result_filtered {
+.results .result_filtered,
+.results .result_engine_not_selected {
   display: flex;
   justify-content: center;
   align-items: center;
@@ -166,18 +167,21 @@ body {
 }
 
 .results .result_disallowed .user_query,
-.results .result_filtered .user_query {
+.results .result_filtered .user_query,
+.results .result_engine_not_selected .user_query {
   color: var(--background-color);
   font-weight: 300;
 }
 
 .results .result_disallowed img,
-.results .result_filtered img {
+.results .result_filtered img,
+.results .result_engine_not_selected img {
   width: 30rem;
 }
 
 .results .result_disallowed div,
-.results .result_filtered div {
+.results .result_filtered div,
+.results .result_engine_not_selected div {
   display: flex;
   flex-direction: column;
   gap: 1rem;

public/templates/search.html

@@ -45,6 +45,20 @@
             </div>
             <img src="./images/filter.png" alt="Image of a paper inside a funnel" />
         </div>
+        {{else}} {{#if noEnginesSelected}}
+        <div class="result_engine_not_selected">
+            <div class="description">
+                <p>
+                    No results could be fetched for your search "<span class="user_query">{{{this.pageQuery}}}</span>" .
+                </p>
+                <p class="description_paragraph">Dear user,</p>
+                <p class="description_paragraph">
+                    No results could be retrieved from the upstream search engines as no 
+                    upstream search engines were selected from the settings page. 
+                </p>
+            </div>
+            <img src="./images/no_selection.png" alt="Image of a white cross inside a red circle" />
+        </div>
         {{else}}
         <div class="result_not_found">
             <p>Your search - {{{this.pageQuery}}} - did not match any documents.</p>
@@ -56,7 +70,7 @@
             </ul>
             <img src="./images/no_results.gif" alt="Man fishing gif" />
         </div>
-        {{/if}} {{/if}} {{/if}}
+        {{/if}} {{/if}} {{/if}} {{/if}}
     </div>
     <div class="page_navigation">
         <button type="button" onclick="navigate_backward()">

src/models/aggregation_models.rs

@@ -124,6 +124,9 @@ pub struct SearchResults {
     pub filtered: bool,
     /// Stores the safe search level `safesearch` provided in the search url.
     pub safe_search_level: u8,
+    /// Stores the flag option which holds the check value that whether any search engines were
+    /// selected or not.
+    pub no_engines_selected: bool,
 }
 
 impl SearchResults {
@@ -150,6 +153,7 @@ impl SearchResults {
             disallowed: Default::default(),
             filtered: Default::default(),
             safe_search_level: Default::default(),
+            no_engines_selected: Default::default(),
         }
     }
 
@@ -186,4 +190,14 @@ impl SearchResults {
     pub fn set_safe_search_level(&mut self, safe_search_level: u8) {
         self.safe_search_level = safe_search_level;
     }
+
+    /// A getter function that gets the value of `no_engines_selected`.
+    pub fn no_engines_selected(&self) -> bool {
+        self.no_engines_selected
+    }
+
+    /// A setter function to set the `no_engines_selected` to true.
+    pub fn set_no_engines_selected(&mut self) {
+        self.no_engines_selected = true;
+    }
 }

src/server/routes/search.rs

@@ -205,16 +205,26 @@ async fn results(
                         },
                     };
 
-                    aggregate(
-                        query,
-                        page,
-                        config.aggregator.random_delay,
-                        config.debug,
-                        &engines,
-                        config.request_timeout,
-                        safe_search_level,
-                    )
-                    .await?
+                    match engines.is_empty() {
+                        false => {
+                            aggregate(
+                                query,
+                                page,
+                                config.aggregator.random_delay,
+                                config.debug,
+                                &engines,
+                                config.request_timeout,
+                                safe_search_level,
+                            )
+                            .await?
+                        }
+                        true => {
+                            let mut search_results = SearchResults::default();
+                            search_results.set_no_engines_selected();
+                            search_results.set_page_query(query);
+                            search_results
+                        }
+                    }
                 }
                 None => {
                     aggregate(
@@ -229,7 +239,10 @@ async fn results(
                     .await?
                 }
             };
-            if results.engine_errors_info().is_empty() && results.results().is_empty() {
+            if results.engine_errors_info().is_empty()
+                && results.results().is_empty()
+                && !results.no_engines_selected()
+            {
                 results.set_filtered();
             }
             results.add_style(&config.style);