portal: allow list destruction

fixes #15

app/portal/list.py

@@ -0,0 +1,91 @@
+from datetime import datetime
+
+from flask import render_template, url_for, flash, redirect, Blueprint
+from flask_wtf import FlaskForm
+from sqlalchemy import exc
+from wtforms import SelectField, StringField, SubmitField
+from wtforms.validators import DataRequired
+
+from app import db
+from app.models.base import MirrorList
+from app.portal.util import response_404, view_lifecycle
+
+bp = Blueprint("list", __name__)
+
+
+@bp.route('/list')
+def list_list():
+    lists = MirrorList.query.filter(MirrorList.destroyed == None).all()
+    return render_template("list.html.j2",
+                           section="list",
+                           title="Mirror Lists",
+                           item="mirror list",
+                           new_link=url_for("portal.list.list_new"),
+                           items=lists)
+
+
+@bp.route("/destroy/<list_id>", methods=['GET', 'POST'])
+def list_destroy(list_id: int):
+    list_ = MirrorList.query.filter(MirrorList.id == list_id, MirrorList.destroyed == None).first()
+    if list_ is None:
+        return response_404("The requested bridge configuration could not be found.")
+    return view_lifecycle(
+        header=f"Destroy mirror list?",
+        message=list_.description,
+        success_view="portal.list.list_list",
+        success_message="This list will no longer be updated and may be deleted depending on the provider.",
+        section="list",
+        resource=list_,
+        action="destroy"
+    )
+
+
+@bp.route("/new", methods=['GET', 'POST'])
+@bp.route("/new/<group_id>", methods=['GET', 'POST'])
+def list_new(group_id=None):
+    form = NewMirrorListForm()
+    form.provider.choices = [
+        ("github", "GitHub"),
+        ("gitlab", "GitLab"),
+        ("s3", "AWS S3"),
+    ]
+    form.format.choices = [
+        ("bc2", "Bypass Censorship v2"),
+        ("bc3", "Bypass Censorship v3"),
+        ("bca", "Bypass Censorship Analytics"),
+        ("bridgelines", "Tor Bridge Lines")
+    ]
+    form.container.description = "GitHub Project, GitLab Project or AWS S3 bucket name."
+    form.branch.description = "Ignored for AWS S3."
+    if form.validate_on_submit():
+        list_ = MirrorList()
+        list_.provider = form.provider.data
+        list_.format = form.format.data
+        list_.description = form.description.data
+        list_.container = form.container.data
+        list_.branch = form.branch.data
+        list_.filename = form.filename.data
+        list_.created = datetime.utcnow()
+        list_.updated = datetime.utcnow()
+        try:
+            db.session.add(list_)
+            db.session.commit()
+            flash(f"Created new mirror list.", "success")
+            return redirect(url_for("portal.list.list_list"))
+        except exc.SQLAlchemyError as e:
+            print(e)
+            flash("Failed to create new mirror list.", "danger")
+            return redirect(url_for("portal.list.list_list"))
+    if group_id:
+        form.group.data = group_id
+    return render_template("new.html.j2", section="list", form=form)
+
+
+class NewMirrorListForm(FlaskForm):
+    provider = SelectField('Provider', validators=[DataRequired()])
+    format = SelectField('Distribution Method', validators=[DataRequired()])
+    description = StringField('Description', validators=[DataRequired()])
+    container = StringField('Container', validators=[DataRequired()])
+    branch = StringField('Branch')
+    filename = StringField('Filename', validators=[DataRequired()])
+    submit = SubmitField('Save Changes')