remove PHPMailer and related directives from config.php-dist; add pluggable Mailer class

1 files changed, 43 insertions, 0 deletions

diff --git a/classes/mailer.php b/classes/mailer.php
new file mode 100644
index 000000000..ae22776d4
--- /dev/null
+++ b/classes/mailer.php
@@ -0,0 +1,43 @@
+<?php
+class Mailer {
+  // TODO: support HTML mail (i.e. MIME messages)
+
+  private $last_error = "Unable to send mail: check local configuration.";
+
+  function mail($params) {
+
+    $to = $params["to"];
+    $subject = $params["subject"];
+    $message = $params["message"];
+    $message_html = $params["message_html"];
+    $from = $params["from"] ? $params["from"] : SMTP_FROM_NAME . " <" . SMTP_FROM_ADDRESS . ">";
+    $additional_headers = $params["headers"] ? $params["headers"] : [];
+
+    $headers[] = "From: $from";
+
+    Logger::get()->log("Sending mail from $from to $to [$subject]: $message");
+
+    // HOOK_SEND_MAIL plugin instructions:
+    // 1. return 1 or true if mail is handled
+    // 2. return -1 if there's been a fatal error and no further action is allowed
+    // 3. any other return value will allow cycling to the next handler and, eventually, to default mail() function
+    // 4. set error message if needed via passed Mailer instance function set_error()
+
+    foreach (PluginHost::getInstance()->get_hooks(PluginHost::HOOK_SEND_MAIL) as $p) {
+      $rc = $p->hook_send_mail($this, $params);
+
+      if ($rc == 1 || $rc == -1)
+        return $rc;
+    }
+
+    return mail($to, $subject, $message, implode("\r\n", array_merge($headers, $additional_headers)));
+  }
+
+  function set_error($message) {
+    $this->last_error = $message;
+  }
+
+  function error($value) {
+    return $this->last_error;
+  }
+}