Add NationStates authentication

eos/nsauth/election.py

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+#   Eos - Verifiable elections
+#   Copyright © 2017-2019  RunasSudo (Yingtong Li)
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU Affero General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU Affero General Public License for more details.
+#
+#   You should have received a copy of the GNU Affero General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from eos.base.election import *
+from eos.core.objects import *
+
+class NationStatesUser(User):
+	username = StringField()
+	
+	@property
+	def name(self):
+		return self.username
+	
+	def matched_by(self, other):
+		if not isinstance(other, NationStatesUser):
+			return False
+		return other.username.lower().strip().replace(' ', '_') == self.username.lower().strip().replace(' ', '_')

eosweb/nsauth/main.py

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+#   Eos - Verifiable elections
+#   Copyright © 2017-2019  RunasSudo (Yingtong Li)
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU Affero General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU Affero General Public License for more details.
+#
+#   You should have received a copy of the GNU Affero General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import flask
+
+from eos.nsauth.election import *
+
+import urllib.request, urllib.parse
+
+blueprint = flask.Blueprint('eosweb.nsauth', __name__, template_folder='templates')
+
+app = None
+
+@blueprint.record
+def reddit_register(setup_state):
+	global app
+	app = setup_state.app
+
+@blueprint.route('/auth/nationstates/login')
+def nationstates_login():
+	return flask.render_template('auth/nationstates/login.html')
+
+@blueprint.route('/auth/nationstates/authenticate', methods=['POST'])
+def nationstates_authenticate():
+	username = flask.request.form['username'].lower().strip().replace(' ', '_')
+	
+	with urllib.request.urlopen(urllib.request.Request('https://www.nationstates.net/cgi-bin/api.cgi?a=verify&' + urllib.parse.urlencode({'nation': username, 'checksum': flask.request.form['checksum']}), headers={'User-Agent': app.config['NATIONSTATES_USER_AGENT']})) as resp:
+		if resp.read().decode('utf-8').strip() != '1':
+			return flask.render_template('auth/nationstates/login.html', error='The nation name or verification code you entered was invalid. Please check your details and try again. If the issue persists, contact the election administrator.')
+	
+	flask.session['user'] = NationStatesUser(username=username)
+	
+	return flask.redirect(flask.url_for('login_complete'))

eosweb/nsauth/settings.py

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+#   Eos - Verifiable elections
+#   Copyright © 2017-2019  RunasSudo (Yingtong Li)
+#
+#   This program is free software: you can redistribute it and/or modify
+#   it under the terms of the GNU Affero General Public License as published by
+#   the Free Software Foundation, either version 3 of the License, or
+#   (at your option) any later version.
+#
+#   This program is distributed in the hope that it will be useful,
+#   but WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#   GNU Affero General Public License for more details.
+#
+#   You should have received a copy of the GNU Affero General Public License
+#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+NATIONSTATES_USER_AGENT = 'FIXME'

eosweb/nsauth/templates/auth/nationstates/login.html

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+{% extends 'semantic_base.html' %}
+
+{#
+	Eos - Verifiable elections
+	Copyright © 2017-2019  RunasSudo (Yingtong Li)
+	
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+	
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#}
+
+{% block title %}Log in{% endblock %}
+
+{% block basecontent %}
+	<div class="ui middle aligned center aligned grid" style="height: 100%;">
+		<div class="column" style="max-width: 400px;">
+			<p>1. Log in to NationStates below if necessary, and copy your <i>Login Verification Code</i>.</p>
+			<iframe src="https://m.nationstates.net/page=verify_login" style="width: 100%; height: 10em;"></iframe>
+			<p>2. Type your nation name and paste your Login Verification Code into the form below.</p>
+			<form class="ui large form" action="{{ url_for('eosweb.nsauth.nationstates_authenticate') }}" method="post">
+				{% if error %}
+					<div class="ui visible error message">{{ error }}</div>
+				{% endif %}
+				<div class="ui stacked segment">
+					<div class="field">
+						<div class="ui left icon input">
+							<i class="user icon"></i>
+							<input type="text" name="username" placeholder="Nation name">
+						</div>
+					</div>
+					<div class="field">
+						<div class="ui left icon input">
+							<i class="linkify icon"></i>
+							<input type="text" name="checksum" placeholder="Login verification code">
+						</div>
+					</div>
+					<input type="submit" class="ui fluid large teal submit button" value="Log in">
+				</div>
+			</form>
+		</div>
+	</div>
+{% endblock %}