send mail through mailgun

Author: raylu

Diff for: config.py

@@ -16,6 +16,7 @@ class WebConfig(Config):
 		'cookie_secret',
 		'github_client_id',
 		'github_client_secret',
+		'mailgun_api_key',
 		'debug',
 	])
 

Diff for: config.yaml.example

@@ -4,6 +4,7 @@ web:
     cookie_secret: 'dis is super sekrit'
     github_client_id: 'a1' # https://github.com/settings/applications
     github_client_secret: 'abc123'
+    mailgun_api_key: null
     debug: true
 
 db:

Diff for: db.py

@@ -68,10 +68,15 @@ def get_user_by(self, field, value):
 		return cursor.fetchone()
 
 	@tornado.gen.coroutine
-	def get_contact_info(self, github_id):
-		query = 'SELECT type, info FROM contact_info WHERE github_id = %s;'
-		cursor = yield self.execute(query, github_id)
-		return cursor.fetchall()
+	def get_contact_info(self, github_id, info_type=None):
+		if info_type is None:
+			query = 'SELECT type, info FROM contact_info WHERE github_id = %s;'
+			cursor = yield self.execute(query, github_id)
+			return cursor.fetchall()
+		else:
+			query = 'SELECT info FROM contact_info WHERE github_id = %s AND type = %s;'
+			cursor = yield self.execute(query, github_id, info_type)
+			return cursor.fetchone()[0]
 
 	@tornado.gen.coroutine
 	def get_questionnaire(self, github_id):

Diff for: server.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import os
+import urllib.parse
 
 import cleancss
 import tornado.gen
@@ -97,6 +98,32 @@ def get(self):
 		users = yield self.db.get_userlist()
 		self.render('users.html', users=users)
 
+class MailHandler(BaseHandler):
+	@tornado.web.authenticated
+	@tornado.gen.coroutine
+	def post(self, username):
+		from_user = self.current_user
+		from_email = yield self.db.get_contact_info(from_user['github_id'], db.ContactInfoType.EMAIL)
+		from_username = from_user['username'].decode('utf-8')
+		to_user = yield self.db.get_user_by('username', username)
+		to_email = yield self.db.get_contact_info(to_user['github_id'], db.ContactInfoType.EMAIL)
+		data = {
+			'from': '%s <%s>' % (from_username, from_email),
+			'to': '%s <%s>' % (username, to_email),
+			'subject': 'lpmc message from %s' % from_username,
+			'text': self.get_body_argument('body'),
+		}
+		request = tornado.httpclient.HTTPRequest(
+			method='POST',
+			url='https://api.mailgun.net/v2/lpmc.io/messages',
+			auth_username='api',
+			auth_password=config.mailgun_api_key,
+			body=urllib.parse.urlencode(data),
+		)
+		response = yield tornado.httpclient.AsyncHTTPClient().fetch(request)
+		data = tornado.escape.json_decode(response.body)
+		self.render('mail.html', username=username, message=data['message'])
+
 class ClaimHandler(BaseHandler):
 	@tornado.web.authenticated
 	@tornado.gen.coroutine
@@ -178,6 +205,7 @@ def get(self, css_path):
 			(r'/github_emails', GithubEmailsHandler),
 			(r'/logout', LogoutHandler),
 			(r'/users', UserListHandler),
+			(r'/users/(.*)/mail', MailHandler),
 			(r'/users/(.*)/claim', ClaimHandler),
 			(r'/users/(.*)/unclaim', UnclaimHandler),
 			(r'/users/(.*)', ProfileHandler),

Diff for: templates/mail.html

@@ -0,0 +1,9 @@
+{% extends "base.html" %}
+
+{% block main %}
+
+	{{ message }}
+	<br>
+	<a href="/users/{{ username }}">
+
+{% end %}

Diff for: templates/profile.html

@@ -32,4 +32,14 @@ <h3>Mentor: <a href="{{ mentor['username'] }}">{{ mentor['username'] }}</a></h3>
 		{% end %}
 	{% end %}
 
+	<p>
+		send mail to {{ user['username'] }}
+		<br>(note that doing so will reveal your email address to {{ user['username'] }})
+		<form action="/users/{{ user['username'] }}/mail" method="post">
+			<textarea name="body"></textarea>
+			<br>
+			<input type="submit" value="send">
+		</form>
+	</p>
+
 {% end %}