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Unified Diff: sitescripts/submitEmail/web/submitEmail.py

Issue 5177883412660224: Issue 2234 - Add a WSGI controller to collect email addresses for the Adblock Browser iOS launch (Closed)
Patch Set: Got rid of redundant variable Created April 22, 2015, 10:05 a.m.
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Index: sitescripts/submitEmail/web/submitEmail.py
===================================================================
new file mode 100644
--- /dev/null
+++ b/sitescripts/submitEmail/web/submitEmail.py
@@ -0,0 +1,130 @@
+# coding: utf-8
+
+# This file is part of the Adblock Plus web scripts,
+# Copyright (C) 2006-2015 Eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Adblock Plus. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import errno
+import fcntl
+import random
+import string
+import wsgiref.util
+from urlparse import parse_qs, urljoin
+from urllib import urlencode
+
+from sitescripts.utils import get_config, sendMail
+from sitescripts.web import url_handler, form_handler
+
+VERIFICATION_PATH = '/verifyEmail'
+VERIFICATION_CODE_PARAM = 'code'
+
+def generate_verification_code():
+ return ''.join(random.sample(string.letters + string.digits, 32))
+
+def get_filename_for_verification_code(config, verification_code):
+ directory = config.get('submitEmail', 'pendingVerficationsDirectory')
+ return os.path.join(directory, verification_code)
+
+def create_file_for_verification_code(config):
+ flags = os.O_CREAT | os.O_EXCL | os.O_WRONLY | getattr(os, 'O_BINARY', 0)
+
+ while True:
+ verification_code = generate_verification_code()
+ filename = get_filename_for_verification_code(config, verification_code)
+
+ try:
+ return (os.open(filename, flags), verification_code)
+ except OSError as e:
+ if e.errno != errno.EEXIST:
+ raise
+
+def verify_email_address(config, verification_code):
+ if verification_code in ('', os.path.curdir, os.path.pardir):
+ return False
+ if os.path.sep in verification_code:
+ return False
+
+ verification_filename = get_filename_for_verification_code(config, verification_code)
+ try:
+ file = open(verification_filename, 'rb')
+ except IOError as e:
+ if e.errno == errno.ENOENT:
+ return False
+ raise
+
+ with file:
+ email = file.read()
+
+ verified_filename = config.get('submitEmail', 'verifiedEmailAddressesFile')
+ with open(verified_filename, 'ab', 0) as file:
+ fcntl.lockf(file, fcntl.LOCK_EX)
+ try:
+ print >>file, email
+ finally:
+ fcntl.lockf(file, fcntl.LOCK_UN)
+
+ try:
+ os.unlink(verification_filename)
+ except OSError as e:
+ if e.errno != errno.ENOENT:
+ raise
+
+ return True
+
+@url_handler('/submitEmail')
+@form_handler
+def submitEmail(environ, start_response, data):
+ email = data.get('email', '').strip()
+ if not email or '\r' in email or '\n' in email:
+ start_response('400 Bad Request', [('Content-Type', 'text/plain')])
+ if email:
+ return ['No newlines allowed in email address.']
+ return ['No email address given.']
+
+ config = get_config()
+ fd, verification_code = create_file_for_verification_code(config)
+ try:
+ os.write(fd, email.encode('utf-8'))
+ finally:
+ os.close(fd)
+
+ sendMail(
+ config.get('submitEmail', 'verificationEmailTemplate'),
+ {
+ 'recipient': email,
+ 'verification_url': '%s?%s' % (
+ urljoin(wsgiref.util.application_uri(environ), VERIFICATION_PATH),
+ urlencode([(VERIFICATION_CODE_PARAM, verification_code)])
+ )
+ }
+ )
+
+ start_response('200 OK', [('Content-Type', 'text/plain')])
+ return ["Thanks for your submission! You'll receive a verification email shortly."]
+
+@url_handler(VERIFICATION_PATH)
+def verifyEmail(environ, start_response):
+ config = get_config()
+
+ params = parse_qs(environ.get('QUERY_STRING', ''))
+ verification_code = params.get(VERIFICATION_CODE_PARAM, [''])[0]
+
+ if verify_email_address(config, verification_code):
+ option = 'successfulVerificationRedirectLocation'
+ else:
+ option = 'unknownVerificationCodeRedirectLocation'
+
+ start_response('303 See other', [('Location', config.get('submitEmail', option))])
+ return []
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