feat: remove tracking ids from links

data/dev.geopjr.Tuba.gschema.xml

@@ -48,6 +48,9 @@
 		<key name="aggressive-resolving" type="b">
 			<default>false</default>
 		</key>
+		<key name="strip-tracking" type="b">
+			<default>true</default>
+		</key>
 
 		<key name="window-x" type="i">
 			<default>-1</default>

data/ui/dialogs/preferences.ui

@@ -111,6 +111,18 @@
                 </child>
               </object>
             </child>
+            <child>
+              <object class="AdwActionRow">
+                <property name="title" translatable="yes">Strip tracking parameters from links</property>
+                <property name="activatable_widget">strip_tracking</property>
+                <property name="subtitle" translatable="yes">It can lead to broken links</property>
+                <child>
+                  <object class="GtkSwitch" id="strip_tracking">
+                    <property name="valign">center</property>
+                  </object>
+                </child>
+              </object>
+            </child>
           </object>
         </child>
         <child>

src/Dialogs/Preferences.vala

@@ -15,6 +15,7 @@ public class Tuba.Dialogs.Preferences : Adw.PreferencesWindow {
     [GtkChild] unowned Switch hide_preview_cards;
     [GtkChild] unowned Switch larger_font_size;
     [GtkChild] unowned Switch larger_line_height;
+    [GtkChild] unowned Switch strip_tracking;
 
 	private bool lang_changed { get; set; default=false; }
 
@@ -59,6 +60,7 @@ public class Tuba.Dialogs.Preferences : Adw.PreferencesWindow {
         settings.bind ("hide-preview-cards", hide_preview_cards, "active", SettingsBindFlags.DEFAULT);
         settings.bind ("larger-font-size", larger_font_size, "active", SettingsBindFlags.DEFAULT);
         settings.bind ("larger-line-height", larger_line_height, "active", SettingsBindFlags.DEFAULT);
+        settings.bind ("strip-tracking", strip_tracking, "active", SettingsBindFlags.DEFAULT);
 
 		post_visibility_combo_row.notify["selected-item"].connect(on_post_visibility_changed);
 

src/Services/Settings.vala

@@ -16,6 +16,7 @@ public class Tuba.Settings : GLib.Settings {
 	public bool larger_font_size { get; set; }
 	public bool larger_line_height { get; set; }
 	public bool aggressive_resolving { get; set; }
+	public bool strip_tracking { get; set; }
 
 	public Settings () {
 		Object (schema_id: Build.DOMAIN);
@@ -32,6 +33,7 @@ public class Tuba.Settings : GLib.Settings {
 		init ("larger-font-size");
 		init ("larger-line-height");
 		init ("aggressive-resolving");
+		init ("strip-tracking");
 	}
 
 	void init (string key) {

src/Utils/Host.vala

@@ -9,6 +9,8 @@ public class Tuba.Host {
 		if (!(":" in uri))
 			uri = "file://" + _uri;
 
+		if (settings.strip_tracking)
+			uri = Tracking.strip_utm (uri);
 		message (@"Opening URI: $uri");
 		try {
 			var success = AppInfo.launch_default_for_uri (uri, null);

src/Utils/Tracking.vala

@@ -0,0 +1,114 @@
+// Ported from Chatty
+// https://source.puri.sm/Librem5/chatty/-/merge_requests/1229
+
+public class Tuba.Tracking {
+    /* https://github.com/brave/brave-core/blob/5fcad3e35bac6fea795941fd8189a59d79d488bc/browser/net/brave_site_hacks_network_delegate_helper.cc#L29-L67 */
+    public const string[] tracking_ids = {
+        // Strip any utm_ based ones
+        "utm_",
+        // https://github.com/brave/brave-browser/issues/4239
+        "fbclid", "gclid", "msclkid", "mc_eid",
+        // https://github.com/brave/brave-browser/issues/9879
+        "dclid",
+        // https://github.com/brave/brave-browser/issues/13644
+        "oly_anon_id", "oly_enc_id",
+        // https://github.com/brave/brave-browser/issues/11579
+        "_openstat",
+        // https://github.com/brave/brave-browser/issues/11817
+        "vero_conv", "vero_id",
+        // https://github.com/brave/brave-browser/issues/13647
+        "wickedid",
+        // https://github.com/brave/brave-browser/issues/11578
+        "yclid",
+        // https://github.com/brave/brave-browser/issues/8975
+        "__s",
+        // https://github.com/brave/brave-browser/issues/17451
+        "rb_clickid",
+        // https://github.com/brave/brave-browser/issues/17452
+        "s_cid",
+        // https://github.com/brave/brave-browser/issues/17507
+        "ml_subscriber", "ml_subscriber_hash",
+        // https://github.com/brave/brave-browser/issues/18020
+        "twclid",
+        // https://github.com/brave/brave-browser/issues/18758
+        "gbraid", "wbraid",
+        // https://github.com/brave/brave-browser/issues/9019
+        "_hsenc", "__hssc", "__hstc", "__hsfp", "hsCtaTracking",
+        // https://github.com/brave/brave-browser/issues/22082
+        "oft_id", "oft_k", "oft_lk", "oft_d", "oft_c", "oft_ck", "oft_ids", "oft_sk",
+        // https://github.com/brave/brave-browser/issues/11580
+        "igshid",
+    };
+
+    public static string strip_utm (string url) {
+        if (!("?" in url)) return url;
+
+        try {
+            var uri = Uri.parse (url, UriFlags.NONE);
+            return strip_utm_from_uri (uri).to_string ();
+        } catch (GLib.UriError e) {
+            warning (e.message);
+            return strip_utm_fallback (url);
+        }
+    }
+
+    public static Uri strip_utm_from_uri (Uri uri) throws UriError {
+        var uri_params = Uri.parse_params (uri.get_query ());
+        string[] res_params = {};
+
+        uri_params.foreach_remove ((key, val) => {
+            var not_tracking_id = true;
+            foreach (var id in tracking_ids) {
+                if (id in key.down ()) {
+                    not_tracking_id = false;
+                    break;
+                }
+            }
+
+            if (not_tracking_id) res_params += @"$key=$val";
+
+            return !not_tracking_id;
+        });
+
+        string? res_query = res_params.length > 0 ? string.joinv("&", res_params) : null;
+        return Uri.build (
+            uri.get_flags (),
+            uri.get_scheme(),
+            uri.get_userinfo (),
+            uri.get_host (),
+            uri.get_port (),
+            uri.get_path (),
+            res_query,
+            uri.get_fragment ()
+        );
+    }
+
+    public static string strip_utm_fallback (string url) {
+        var split_url = url.split_set ("?", 2);
+        if (split_url[1].index_of_char ('=') == -1) return url;
+
+        var query_params = split_url[1].split_set ("&");
+        var str = @"$(split_url[0])?";
+
+        var fragment_offset = split_url[1].last_index_of_char ('#');
+        var fragment = fragment_offset > -1 ? split_url[1].substring(fragment_offset) : "";
+
+        foreach (var param in query_params) {
+            var not_tracking_id = true;
+
+            foreach (var id in tracking_ids) {
+                var index_of_eq = param.index_of_char ('=');
+                if (index_of_eq > -1 && id in param.slice (0, index_of_eq).down ()) {
+                    not_tracking_id = false;
+                    break;
+                }
+            }
+
+            if (not_tracking_id) {
+                str += @"$(param)&";
+            }
+        }
+
+        return @"$(str.slice(0, -1))$fragment";
+    }
+}

src/Utils/meson.build

@@ -3,4 +3,5 @@ sources += files(
     'Host.vala',
     'Html.vala',
     'Locale.vala',
+    'Tracking.vala',
 )