mail: Fix new breakage on python 2.7 (backport) (#49222)

* mail: Fix new breakage on python 2.7

* Add changelog fragment

* Add basic SMTP testing

* Add SMTP integration tests using starttls and TLS

7 files changed, 215 insertions, 2 deletions

diff --git a/changelogs/fragments/47019-mail-fix-py27-regression.yaml b/changelogs/fragments/47019-mail-fix-py27-regression.yaml
new file mode 100644
index 0000000000..0bbaff4d51
--- /dev/null
+++ b/changelogs/fragments/47019-mail-fix-py27-regression.yaml
@@ -0,0 +1,2 @@
+bugfixes:
+- mail - fix python 2.7 regression
diff --git a/lib/ansible/modules/notification/mail.py b/lib/ansible/modules/notification/mail.py
index 7e4ff35634..0aa5d0e2f5 100644
--- a/lib/ansible/modules/notification/mail.py
+++ b/lib/ansible/modules/notification/mail.py
@@ -194,6 +194,7 @@ from email.mime.text import MIMEText
 from email.header import Header
 
 from ansible.module_utils.basic import AnsibleModule
+from ansible.module_utils.six import PY3
 from ansible.module_utils._text import to_native
 
 
@@ -248,7 +249,10 @@ def main():
     try:
         if secure != 'never':
             try:
-                smtp = smtplib.SMTP_SSL(host=host, port=port, timeout=timeout)
+                if PY3:
+                    smtp = smtplib.SMTP_SSL(host=host, port=port, timeout=timeout)
+                else:
+                    smtp = smtplib.SMTP_SSL(timeout=timeout)
                 code, smtpmessage = smtp.connect(host, port)
                 secure_state = True
             except ssl.SSLError as e:
@@ -259,7 +263,10 @@ def main():
                 pass
 
         if not secure_state:
-            smtp = smtplib.SMTP(host=host, port=port, timeout=timeout)
+            if PY3:
+                smtp = smtplib.SMTP(host=host, port=port, timeout=timeout)
+            else:
+                smtp = smtplib.SMTP(timeout=timeout)
             code, smtpmessage = smtp.connect(host, port)
 
     except smtplib.SMTPException as e:
diff --git a/test/integration/targets/mail/aliases b/test/integration/targets/mail/aliases
new file mode 100644
index 0000000000..a6dafcf8cd
--- /dev/null
+++ b/test/integration/targets/mail/aliases
@@ -0,0 +1 @@
+shippable/posix/group1
diff --git a/test/integration/targets/mail/files/smtpserver.crt b/test/integration/targets/mail/files/smtpserver.crt
new file mode 100644
index 0000000000..44c18a243e
--- /dev/null
+++ b/test/integration/targets/mail/files/smtpserver.crt
@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/integration/targets/mail/files/smtpserver.key b/test/integration/targets/mail/files/smtpserver.key
new file mode 100644
index 0000000000..48ddf644c9
--- /dev/null
+++ b/test/integration/targets/mail/files/smtpserver.key
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+SWidcmZDqIiIXh6BF4/4WxXMXJdhfrux9/O8Xk89v+EDAbLbN8jSrvy87+6mOmRM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+-----END PRIVATE KEY-----
diff --git a/test/integration/targets/mail/files/smtpserver.py b/test/integration/targets/mail/files/smtpserver.py
new file mode 100755
index 0000000000..01b257e189
--- /dev/null
+++ b/test/integration/targets/mail/files/smtpserver.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2018, Dag Wieers (@dagwieers) <dag@wieers.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+import asyncore
+import os.path
+import ssl
+import sys
+
+# Handle TLS and non-TLS support
+try:
+    import smtpd_tls
+    HAS_TLS = True
+except ImportError:
+    import smtpd
+    HAS_TLS = False
+    print('Library smtpd-tls is missing or not supported, hence starttls is NOT supported.')
+
+# Handle custom ports
+port = '25:465'
+if len(sys.argv) > 1:
+    port = sys.argv[1]
+ports = port.split(':')
+if len(ports) > 1:
+    port1, port2 = int(ports[0]), int(ports[1])
+else:
+    port1, port2 = int(port), None
+
+# Handle custom certificate
+basename = os.path.splitext(sys.argv[0])[0]
+certfile = basename + '.crt'
+if len(sys.argv) > 2:
+    certfile = sys.argv[2]
+
+# Handle custom key
+keyfile = basename + '.key'
+if len(sys.argv) > 3:
+    keyfile = sys.argv[3]
+
+try:
+    ssl_ctx = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
+except AttributeError:
+    ssl_ctx = None
+    if HAS_TLS:
+        print('Python ssl library does not support SSLContext, hence starttls and TLS are not supported.')
+    import smtpd
+
+if HAS_TLS and ssl_ctx is not None:
+    print('Using %s and %s' % (certfile, keyfile))
+    ssl_ctx.load_cert_chain(certfile=certfile, keyfile=keyfile)
+
+    print('Start SMTP server on port', port1)
+    smtp_server1 = smtpd_tls.DebuggingServer(('127.0.0.1', port1), None, ssl_ctx=ssl_ctx, starttls=True)
+    if port2:
+        print('Start TLS SMTP server on port', port2)
+        smtp_server2 = smtpd_tls.DebuggingServer(('127.0.0.1', port2), None, ssl_ctx=ssl_ctx, starttls=False)
+else:
+    print('Start SMTP server on port', port1)
+    smtp_server1 = smtpd.DebuggingServer(('127.0.0.1', port1), None)
+    if port2:
+        print('WARNING: TLS is NOT supported on this system, not listening on port %s.' % port2)
+
+asyncore.loop()
diff --git a/test/integration/targets/mail/tasks/main.yml b/test/integration/targets/mail/tasks/main.yml
new file mode 100644
index 0000000000..8a3280d77d
--- /dev/null
+++ b/test/integration/targets/mail/tasks/main.yml
@@ -0,0 +1,85 @@
+# TODO: Our current implementation does not handle SMTP authentication
+
+# NOTE: If the system does not support smtpd-tls (python 2.6 and older) we do basic tests
+- name: Attempt to install smtpd-tls
+  pip:
+    name: smtpd-tls
+    state: present
+  ignore_errors: yes
+  register: smtpd_tls
+
+- name: Install test smtpserver
+  copy:
+    src: '{{ item }}'
+    dest: '{{ output_dir }}/{{ item }}'
+  loop:
+  - smtpserver.py
+  - smtpserver.crt
+  - smtpserver.key
+
+# FIXME: Verify the mail after it was send would be nice
+#        This would require either dumping the content, or registering async task output
+- name: Start test smtpserver
+  shell: '{{ ansible_python.executable }} {{ output_dir }}/smtpserver.py 10025:10465'
+  async: 30
+  poll: 0
+  register: smtpserver
+
+- name: Send a basic test-mail
+  mail:
+    port: 10025
+    subject: Test mail 1 (smtp)
+    secure: never
+
+- name: Send a test-mail with body and specific recipient
+  mail:
+    port: 10025
+    from: ansible@localhost
+    to: root@localhost
+    subject: Test mail 2 (smtp + body)
+    body: Test body 2
+    secure: never
+
+- name: Send a test-mail with attachment
+  mail:
+    port: 10025
+    from: ansible@localhost
+    to: root@localhost
+    subject: Test mail 3 (smtp + body + attachment)
+    body: Test body 3
+    attach: /etc/group
+    secure: never
+
+# NOTE: This might fail if smtpd-tls is missing or python 2.7.8 or older is used
+- name: Send a test-mail using starttls
+  mail:
+    port: 10025
+    from: ansible@localhost
+    to: root@localhost
+    subject: Test mail 4 (smtp + starttls + body + attachment)
+    body: Test body 4
+    attach: /etc/group
+    secure: starttls
+  ignore_errors: yes
+  register: starttls_support
+
+# NOTE: This might fail if smtpd-tls is missing or python 2.7.8 or older is used
+- name: Send a test-mail using TLS
+  mail:
+    port: 10465
+    from: ansible@localhost
+    to: root@localhost
+    subject: Test mail 5 (smtp + tls + body + attachment)
+    body: Test body 5
+    attach: /etc/group
+    secure: always
+  ignore_errors: yes
+  register: tls_support
+
+- fail:
+    msg: Sending mail using starttls failed.
+  when: smtpd_tls is succeeded and starttls_support is failed and tls_support is succeeded
+
+- fail:
+    msg: Send mail using TLS failed.
+  when: smtpd_tls is succeeded and tls_support is failed and starttls_support is succeeded