rss2email module: init

Also adding `system-sendmail` package for sharing the code with other
modules or packages needing it.

3 files changed, 82 insertions, 0 deletions

diff --git a/nixos/tests/all-tests.nix b/nixos/tests/all-tests.nix
index 754a8ff20b2..e53e483e040 100644
--- a/nixos/tests/all-tests.nix
+++ b/nixos/tests/all-tests.nix
@@ -179,6 +179,7 @@ in
   radicale = handleTest ./radicale.nix {};
   redmine = handleTest ./redmine.nix {};
   rspamd = handleTest ./rspamd.nix {};
+  rss2email = handleTest ./rss2email.nix {};
   rsyslogd = handleTest ./rsyslogd.nix {};
   runInMachine = handleTest ./run-in-machine.nix {};
   rxe = handleTest ./rxe.nix {};
diff --git a/nixos/tests/common/webroot/news-rss.xml b/nixos/tests/common/webroot/news-rss.xml
new file mode 100644
index 00000000000..28e6fa7da1f
--- /dev/null
+++ b/nixos/tests/common/webroot/news-rss.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<rss xmlns:blogChannel="http://backend.userland.com/blogChannelModule" version="2.0"><channel><title>NixOS News</title><link>https://nixos.org</link><description>News for NixOS, the purely functional Linux distribution.</description><image><title>NixOS</title><url>https://nixos.org/logo/nixos-logo-only-hires.png</url><link>https://nixos.org/</link></image><item><title>
+      NixOS 18.09 released
+    </title><link>https://nixos.org/news.html</link><description>
+      <a href="https://github.com/NixOS/nixos-artwork/blob/master/releases/18.09-jellyfish/jellyfish.png">
+        <img class="inline" src="logo/nixos-logo-18.09-jellyfish-lores.png" alt="18.09 Jellyfish logo" with="100" height="87"/>
+      </a>
+      NixOS 18.09 “Jellyfish” has been released, the tenth stable release branch.
+      See the <a href="/nixos/manual/release-notes.html#sec-release-18.09">release notes</a>
+      for details. You can get NixOS 18.09 ISOs and VirtualBox appliances
+      from the <a href="nixos/download.html">download page</a>.
+      For information on how to upgrade from older release branches
+      to 18.09, check out the
+      <a href="/nixos/manual/index.html#sec-upgrading">manual section on upgrading</a>.
+    </description><pubDate>Sat Oct 06 2018 00:00:00 GMT</pubDate></item></channel></rss>
diff --git a/nixos/tests/rss2email.nix b/nixos/tests/rss2email.nix
new file mode 100644
index 00000000000..492d47da9f5
--- /dev/null
+++ b/nixos/tests/rss2email.nix
@@ -0,0 +1,66 @@
+import ./make-test.nix {
+  name = "opensmtpd";
+
+  nodes = {
+    server = { pkgs, ... }: {
+      imports = [ common/user-account.nix ];
+      services.nginx = {
+        enable = true;
+        virtualHosts."127.0.0.1".root = ./common/webroot;
+      };
+      services.rss2email = {
+        enable = true;
+        to = "alice@localhost";
+        interval = "1";
+        config.from = "test@example.org";
+        feeds = {
+          nixos = { url = "http://127.0.0.1/news-rss.xml"; };
+        };
+      };
+      services.opensmtpd = {
+        enable = true;
+        extraServerArgs = [ "-v" ];
+        serverConfiguration = ''
+          listen on 127.0.0.1
+          action dovecot_deliver mda \
+            "${pkgs.dovecot}/libexec/dovecot/deliver -d %{user.username}"
+          match from any for local action dovecot_deliver
+        '';
+      };
+      services.dovecot2 = {
+        enable = true;
+        enableImap = true;
+        mailLocation = "maildir:~/mail";
+        protocols = [ "imap" ];
+      };
+      environment.systemPackages = let
+        checkMailLanded = pkgs.writeScriptBin "check-mail-landed" ''
+          #!${pkgs.python3.interpreter}
+          import imaplib
+
+          with imaplib.IMAP4('127.0.0.1', 143) as imap:
+            imap.login('alice', 'foobar')
+            imap.select()
+            status, refs = imap.search(None, 'ALL')
+            print("=====> Result of search for all:", status, refs)
+            assert status == 'OK'
+            assert len(refs) > 0
+            status, msg = imap.fetch(refs[0], 'BODY[TEXT]')
+            assert status == 'OK'
+        '';
+      in [ pkgs.opensmtpd checkMailLanded ];
+    };
+  };
+
+  testScript = ''
+    startAll;
+
+    $server->waitForUnit("network-online.target");
+    $server->waitForUnit("opensmtpd");
+    $server->waitForUnit("dovecot2");
+    $server->waitForUnit("nginx");
+    $server->waitForUnit("rss2email");
+
+    $server->waitUntilSucceeds('check-mail-landed >&2');
+  '';
+}