Add filter to hide nonfree content

Fixes #121

app/__init__.py

@@ -198,3 +198,16 @@ def set_locale():
 			models.db.session.commit()
 
 	return resp
+
+
+@app.route("/set-nonfree/", methods=["POST"])
+def set_nonfree():
+	resp = redirect(url_for("homepage.home"))
+	if request.cookies.get("hide_nonfree") == "1":
+		resp.set_cookie("hide_nonfree", "0", expires=0)
+	else:
+		expire_date = datetime.datetime.now()
+		expire_date = expire_date + datetime.timedelta(days=5*365)
+		resp.set_cookie("hide_nonfree", "1", expires=expire_date)
+
+	return resp

app/blueprints/packages/packages.py

@@ -49,7 +49,7 @@ from app.utils import is_user_bot, get_int_or_abort, is_package_page, abs_url_fo
 
 @bp.route("/packages/")
 def list_all():
-	qb    = QueryBuilder(request.args)
+	qb    = QueryBuilder(request.args, cookies=True)
 	query = qb.build_package_query()
 	title = qb.title
 

app/blueprints/todo/editor.py

@@ -93,7 +93,7 @@ def view_editor():
 @bp.route("/todo/topics/")
 @login_required
 def topics():
-	qb = QueryBuilder(request.args)
+	qb = QueryBuilder(request.args, cookies=True)
 	qb.set_sort_if_none("date")
 	query = qb.build_topic_query()
 
@@ -125,7 +125,7 @@ def topics():
 @bp.route("/todo/tags/")
 @login_required
 def tags():
-	qb    = QueryBuilder(request.args)
+	qb    = QueryBuilder(request.args, cookies=True)
 	qb.set_sort_if_none("score", "desc")
 	query = qb.build_package_query()
 

app/querybuilder.py

@@ -14,7 +14,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-from flask import abort, current_app
+from flask import abort, current_app, request
 from flask_babel import lazy_gettext
 from sqlalchemy import or_
 from sqlalchemy.orm import subqueryload
@@ -55,7 +55,7 @@ class QueryBuilder:
 		return (self.search is not None or len(self.tags) > 1 or len(self.types) > 1 or len(self.hide_flags) > 0 or
 			self.random or self.lucky or self.author or self.version or self.game)
 
-	def __init__(self, args):
+	def __init__(self, args, cookies=False):
 
 		# Get request types
 		types = args.getlist("type")
@@ -120,6 +120,9 @@ class QueryBuilder:
 		if self.game:
 			self.game = Package.get_by_key(self.game)
 
+		if cookies and request.cookies.get("hide_nonfree") == "1":
+			self.hide_nonfree = True
+
 	def set_sort_if_none(self, name, dir="desc"):
 		if self.order_by is None:
 			self.order_by = name

app/template_filters.py

@@ -17,6 +17,7 @@
 from datetime import datetime as dt
 from urllib.parse import urlparse
 
+from flask import request
 from flask_babel import format_timedelta, gettext
 from flask_login import current_user
 from markupsafe import Markup
@@ -29,8 +30,8 @@ from .utils.minetest_hypertext import normalize_whitespace as do_normalize_white
 
 
 @app.context_processor
-def inject_debug():
-	return dict(debug=app.debug)
+def inject_misc():
+	return dict(debug=app.debug, hide_nonfree=request.cookies.get("hide_nonfree") == "1")
 
 
 @app.context_processor

app/templates/base.html

@@ -269,6 +269,15 @@
 			<li class="list-inline-item"><a href="https://github.com/minetest/contentdb">{{ _("Source Code") }}</a></li>
 		</ul>
 
+		<form method="POST" action="{{ url_for('set_nonfree') }}" class="my-3">
+			<input type="hidden" name="csrf_token" value="{{ csrf_token() }}" />
+			{% if hide_nonfree %}
+				<input type="submit" class="btn btn-sm btn-secondary" value="{{ _('Show non-free packages') }}">
+			{% else %}
+				<input type="submit" class="btn btn-sm btn-secondary" value="{{ _('Hide non-free packages') }}">
+			{% endif %}
+		</form>
+
 		{% if debug %}
 			<p style="color: red">
 				DEBUG MODE ENABLED