protected function fetchArticle(Command $command, ClientContext $context) : Generator
{
// Current article?
if ($command->argCount() === 0) {
if (!$context->getCursor()->valid()) {
yield from $context->writeResponse(new Response(412, 'No newsgroup selected'));
return;
}
return $context->getCursor()->getArticle();
} elseif (is_numeric($command->arg(0))) {
$number = (int) $command->arg(0);
if (!$context->getCursor()->valid()) {
yield from $context->writeResponse(new Response(412, 'No newsgroup selected'));
return;
}
if (!(yield from $context->getCursor()->seek($number))) {
yield from $context->writeResponse(new Response(423, 'No article with that number'));
return;
}
return $context->getCursor()->getArticle();
} else {
$article = (yield from $context->getAccessLayer()->getArticleById($command->arg(0)));
if (!$article) {
yield from $context->writeResponse(new Response(430, 'No article with that message-id'));
return;
}
}
return $article;
}
public function handle(Command $command, ClientContext $context) : Generator
{
if (!$context->getAccessLayer()->isPostingAllowed()) {
yield from $context->writeResponse(new Response(440, 'Posting not permitted'));
return;
}
yield from $context->writeResponse(new Response(340, 'Send article to be posted'));
$data = (yield from $context->readData());
$article = Article::parse($data);
try {
yield from $context->getAccessLayer()->postArticle($article);
yield from $context->writeResponse(new Response(240, 'Article received OK'));
} catch (\Throwable $e) {
yield from $context->writeResponse(new Response(441, 'Posting failed'));
}
}
public function handle(Command $command, ClientContext $context) : Generator
{
if ($command->argCount() === 0) {
$group = $this->currentGroup;
}
$name = $command->arg(0);
$group = (yield from $context->getAccessLayer()->getGroupByName($name));
if (!$group) {
yield from $context->writeResponse(new Response(411, 'No such newsgroup'));
return;
}
$context->setCurrentGroup($group->name());
$context->setCurrentArticle($group->lowWaterMark());
yield from $context->writeResponse(new Response(211, $group->count() . ' ' . $group->lowWaterMark() . ' ' . $group->highWaterMark() . ' ' . $group->name() . ' Group successfully selected'));
}
public function handle(Command $command, ClientContext $context) : Generator
{
if ($command->argCount() !== 1) {
yield from $context->writeResponse(new Response(501, 'Invalid number of arguments'));
return;
}
try {
$name = $command->arg(0);
$cursor = (yield from $context->getAccessLayer()->getGroupCursor($name));
$context->setCursor($cursor);
} catch (NotFoundException $e) {
yield from $context->writeResponse(new Response(411, 'No such newsgroup'));
return;
}
$group = $context->getCursor()->getGroup();
yield from $context->writeResponse(new Response(211, $group->count() . ' ' . $group->lowWaterMark() . ' ' . $group->highWaterMark() . ' ' . $group->name() . ' Group successfully selected'));
}
public function handle(Command $command, ClientContext $context) : Generator
{
yield from $context->writeResponse(new Response(215, 'List of newsgroups follows'));
$groups = (yield from $context->getAccessLayer()->getGroups());
$data = array_reduce($groups, function (string $s, Group $group) {
switch ($group->status()) {
case Group::POSTING_PERMITTED:
$status = 'y';
break;
case Group::POSTING_NOT_PERMITTED:
$status = 'n';
break;
case Group::POSTING_FORWARDED:
$status = 'm';
break;
default:
$status = 'u';
break;
}
return $s . sprintf("%s %d %d %s\r\n", $group->name(), $group->highWaterMark(), $group->lowWaterMark(), $status);
}, '');
yield from $context->writeData($data);
}