From 5613b94b13bb62d3ee8557fb677b7dfe2e49ac51 Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 15 Oct 2018 18:30:31 +0100
Subject: [PATCH] Implement backend logic for newsletter subscriptions

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 Makefile.am                              |  6 ++++
 src/templates/base.html                  |  4 +--
 src/templates/newsletter/subscribed.html | 19 ++++++++++++
 src/web/__init__.py                      |  4 +++
 src/web/handlers_base.py                 |  1 +
 src/web/newsletter.py                    | 39 ++++++++++++++++++++++++
 6 files changed, 71 insertions(+), 2 deletions(-)
 create mode 100644 src/templates/newsletter/subscribed.html
 create mode 100644 src/web/newsletter.py

diff --git a/Makefile.am b/Makefile.am
index 64034e9d..c8fa2e1c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -85,6 +85,7 @@ web_PYTHON = \
 	src/web/handlers_mirrors.py \
 	src/web/handlers_nopaste.py \
 	src/web/location.py \
+	src/web/newsletter.py \
 	src/web/people.py \
 	src/web/ui_modules.py
 
@@ -146,6 +147,11 @@ templates_modules_DATA = \
 
 templates_modulesdir = $(templatesdir)/modules
 
+templates_newsletter_DATA = \
+	src/templates/newsletter/subscribed.html
+
+templates_newsletterdir = $(templatesdir)/newsletter
+
 templates_people_DATA = \
 	src/templates/people/base.html \
 	src/templates/people/calls.html \
diff --git a/src/templates/base.html b/src/templates/base.html
index 48fbbf05..a4d190de 100644
--- a/src/templates/base.html
+++ b/src/templates/base.html
@@ -54,12 +54,12 @@
 							<div class="col-12 col-lg-4 mb-4">
 								<h6>{{ _("Subscribe to our Newsletter") }}</h6>
 
-								<form method="POST" action="/subscribe">
+								<form method="POST" action="https://{{ "dev" if debug else "www" }}.ipfire.org/newsletter/subscribe">
 									{% raw xsrf_form_html() %}
 
 									<label class="sr-only" for="email">{{ _("Email Address") }}</label>
 
-									<input type="text" class="form-control mb-2 mr-sm-2" id="email"
+									<input type="email" class="form-control mb-2 mr-sm-2" id="email" name="email"
 										placeholder="{{ _("Your Email Address") }}">
 
 									<button type="submit" class="btn btn-primary btn-block mb-2">{{ _("Subscribe") }}</button>
diff --git a/src/templates/newsletter/subscribed.html b/src/templates/newsletter/subscribed.html
new file mode 100644
index 00000000..6db5fc07
--- /dev/null
+++ b/src/templates/newsletter/subscribed.html
@@ -0,0 +1,19 @@
+{% extends "../base.html" %}
+
+{% block title %}{{ _("Successfully subscribed") }}{% end block %}
+
+{% block content %}
+	<div class="row justify-content-center my-5">
+		<div class="col-12 col-md-6">
+			<div class="card bg-success text-white p-md-5">
+				<div class="card-body text-center">
+					<span class="fas fa-check fa-5x my-4"></span>
+
+					<p class="lead">
+						{{ _("You have been successfully subscribed to our newsletter") }}
+					</p>
+				</div>
+			</div>
+		</div>
+	</div>
+{% end block %}
diff --git a/src/web/__init__.py b/src/web/__init__.py
index 7e5953c5..b11f2446 100644
--- a/src/web/__init__.py
+++ b/src/web/__init__.py
@@ -16,6 +16,7 @@ from . import auth
 from . import blog
 from . import download
 from . import location
+from . import newsletter
 from . import people
 from . import ui_modules
 
@@ -101,6 +102,9 @@ class Application(tornado.web.Application):
 			(r"/donate", DonateHandler),
 			(r"/donation", tornado.web.RedirectHandler, { "url" : "/donate" }),
 
+			# Newsletter
+			(r"/newsletter/subscribe", newsletter.SubscribeHandler),
+
 			# RSS feed
 			(r"/news.rss", tornado.web.RedirectHandler, { "url" : "https://blog.ipfire.org/feed.xml" }),
 
diff --git a/src/web/handlers_base.py b/src/web/handlers_base.py
index bcb31c16..49e2b3d3 100644
--- a/src/web/handlers_base.py
+++ b/src/web/handlers_base.py
@@ -40,6 +40,7 @@ class BaseHandler(tornado.web.RequestHandler):
 		now = datetime.date.today()
 
 		ns.update({
+			"debug" : self.application.settings.get("debug", False),
 			"format_size" : util.format_size,
 			"format_time" : util.format_time,
 			"hostname" : self.hostname,
diff --git a/src/web/newsletter.py b/src/web/newsletter.py
new file mode 100644
index 00000000..a88b7a87
--- /dev/null
+++ b/src/web/newsletter.py
@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+
+import email.mime.text
+import logging
+import tornado.gen
+import tornado.process
+
+from . import handlers_base as base
+
+class SubscribeHandler(base.BaseHandler):
+	@tornado.gen.coroutine
+	def post(self):
+		address = self.get_argument("email")
+
+		# Create an email with us as sender
+		m = email.mime.text.MIMEText("")
+		m.add_header("To", "ipfire-announce-join@lists.ipfire.org")
+		m.add_header("From", address)
+		m.add_header("Sender", "no-reply@ipfire.org")
+		m.add_header("Subject", "Subscribe")
+
+		logging.debug("Sending email:\n%s" % m.as_string())
+
+		# Call sendmail
+		p = tornado.process.Subprocess(["sendmail", "-t"],
+			stdin=tornado.process.Subprocess.STREAM)
+
+		# Pipe the email into sendmail
+		yield tornado.gen.Task(p.stdin.write, m.as_bytes())
+
+		# Close standard input
+		p.stdin.close()
+
+		# Wait until sendmail is done
+		ret = yield p.wait_for_exit()
+
+		logging.info("%s has subscribed to the newsletter" % address)
+
+		self.render("newsletter/subscribed.html", address=address)
-- 
2.39.2