/**
* Process an uploaded CSV file to find new recipients.
*
* @param array $recipients previous recipients, to prevent duplicates
* Contains:
*
* user_guids => array() existing users
* emails => array() extra email addresses
*
* @return array
*/
function newsletter_process_csv_upload(array $recipients)
{
// is a file uploaded
if (get_uploaded_file("csv")) {
// open the file as CSV
$fh = fopen($_FILES["csv"]["tmp_name"], "r");
if (!empty($fh)) {
$email_column = false;
// try to find an email column (in the first 2 rows)
for ($i = 0; $i < 2; $i++) {
$row = fgetcsv($fh, null, ";", "\"");
if ($row) {
foreach ($row as $index => $field) {
if (newsletter_is_email_address($field)) {
$email_column = $index;
break;
}
}
}
}
// found an email column
if ($email_column !== false) {
$counter = 0;
// start at the beginning
if (rewind($fh)) {
$row = fgetcsv($fh, null, ";", "\"");
while ($row !== false) {
// get the email address
$email = @$row[$email_column];
// make sure it's a valid email address
if (newsletter_is_email_address($email)) {
$counter++;
$exists = false;
// is this email address already in the recipients list
if (in_array($email, $recipients["emails"])) {
$exists = true;
} else {
// check for an existing user
$ia = elgg_set_ignore_access(true);
$users = get_user_by_email($email);
if (!empty($users)) {
foreach ($users as $user) {
if (in_array($user->getGUID(), $recipients["user_guids"])) {
$exists = true;
}
}
}
elgg_set_ignore_access($ia);
}
if ($exists === false) {
// email address wasn't added yet
// so add to the list
$ia = elgg_set_ignore_access(true);
$users = get_user_by_email($email);
if (!empty($users)) {
$recipients["user_guids"][] = $users[0]->getGUID();
} else {
$recipients["emails"][] = $email;
}
elgg_set_ignore_access($ia);
}
}
// go to the next row
$row = fgetcsv($fh, null, ";", "\"");
}
// done, report the added emails
system_message(elgg_echo("newsletter:csv:added", array($counter)));
}
} else {
// no email column found, report this
system_message(elgg_echo("newsletter:csv:no_email"));
}
}
}
return $recipients;
}
} else {
register_error(elgg_echo('newsletter:action:subscribe:error:unsubscribe'));
}
} else {
// subscribe
if (newsletter_subscribe_user($user, $entity)) {
system_message(elgg_echo('newsletter:action:subscribe:success'));
} else {
register_error(elgg_echo('newsletter:action:subscribe:error:subscribe'));
}
}
} else {
register_error(elgg_echo('error:missing_data'));
}
} else {
if (newsletter_is_email_address($email)) {
// add the email address to the subscriber list
if (newsletter_subscribe_email($email, $entity)) {
system_message(elgg_echo('newsletter:action:subscribe:success'));
} else {
register_error(elgg_echo('newsletter:action:subscribe:error:subscribe'));
}
} else {
register_error(elgg_echo('registration:notemail'));
}
}
} else {
register_error(elgg_echo('actionunauthorized'));
}
} else {
register_error(elgg_echo('error:missing_data'));
$key = strtolower($user->name) . $user->getGUID();
$result[$key] = newsletter_format_recipient($user);
}
}
if (!elgg_instanceof($entity->getContainerEntity(), "group")) {
// search for groups
$options = array("type" => "group", "limit" => $limit, "joins" => array("JOIN " . $dbprefix . "groups_entity ge ON e.guid = ge.guid"), "wheres" => array("(ge.name LIKE '%" . $filtered_query . "%' OR ge.description LIKE '%" . $filtered_query . "%')"));
$groups = elgg_get_entities($options);
if (!empty($groups)) {
foreach ($groups as $group) {
$key = strtolower($group->name) . $group->getGUID();
$result[$key] = newsletter_format_recipient($group);
}
}
}
// email input
if (newsletter_is_email_address($query)) {
if ($users = get_user_by_email($query)) {
// found a user with this email address
$key = strtolower($users[0]->name) . $users[0]->getGUID();
$result[$key] = newsletter_format_recipient($users[0]);
} else {
// no user found
$result[$query] = newsletter_format_recipient($query);
}
}
}
}
ksort($result);
header("Content-Type: application/json");
echo json_encode(array_values($result));
/**
* Validate the custom from email address
*
* This also triggers a plugin hook 'from_email', 'newsletter' for other plugins to hook into
* Supplied params:
* - email: the email address to validate
*
* @param string $from_email the email address to check
*
* @return bool
*/
function newsletter_validate_custom_from($from_email)
{
if (empty($from_email)) {
// empty is allowed, sending will fallback to container
return true;
}
if (!newsletter_is_email_address($from_email)) {
// not an email address, always fail
return false;
}
$result = true;
// check plugin settings domain limitations
$plugin_setting = elgg_get_plugin_setting('custom_from_domains', 'newsletter');
if (!empty($plugin_setting)) {
$result = false;
$plugin_setting = string_to_tag_array($plugin_setting);
list(, $domain) = explode('@', $from_email);
foreach ($plugin_setting as $allowed_domain) {
if ($domain === $allowed_domain) {
// custom from is from an allowed domain
$result = true;
break;
}
}
}
// trigger a plugin hook so others are allowed to validate
return (bool) elgg_trigger_plugin_hook('from_email', 'newsletter', ['email' => $from_email], $result);
}
}
} else {
$recipient_error = true;
register_error(elgg_echo("newsletter:action:unsubscribe:error:recipient", array($recipient)));
}
}
// unsubscribe from all
if (!empty($all)) {
if (is_numeric($recipient) && ($user = get_user($recipient))) {
if (newsletter_unsubscribe_all_user($user)) {
$forward_url = "";
system_message(elgg_echo("newsletter:action:unsubscribe:success:all"));
} else {
register_error(elgg_echo("newsletter:action:unsubscribe:error:all"));
}
} elseif (newsletter_is_email_address($recipient)) {
if (newsletter_unsubscribe_all_email($recipient)) {
$forward_url = "";
system_message(elgg_echo("newsletter:action:unsubscribe:success:all"));
} else {
register_error(elgg_echo("newsletter:action:unsubscribe:error:all"));
}
} elseif (!$recipient_error) {
register_error(elgg_echo("newsletter:action:unsubscribe:error:recipient", array($recipient)));
}
}
} else {
register_error(elgg_echo("newsletter:unsubscribe:error:code"));
}
} else {
register_error(elgg_echo("InvalidParameterException:MissingParameter"));
