/**
* Download new headers for a single group.
*
* @param array $groupMySQL Array of MySQL results for a single group.
* @param int $maxHeaders (Optional) How many headers to download max.
*
* @return void
*/
public function updateGroup($groupMySQL, $maxHeaders = 0)
{
$startGroup = microtime(true);
$this->logIndexerStart();
// Select the group on the NNTP server, gets the latest info on it.
$groupNNTP = $this->_nntp->selectGroup($groupMySQL['name']);
if ($this->_nntp->isError($groupNNTP)) {
$groupNNTP = $this->_nntp->dataError($this->_nntp, $groupMySQL['name']);
if ($groupNNTP->code == 411) {
$this->_groups->disableIfNotExist($groupMySQL['id']);
}
if ($this->_nntp->isError($groupNNTP)) {
return;
}
}
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary('Processing ' . $groupMySQL['name']), true);
}
// Attempt to repair any missing parts before grabbing new ones.
if ($groupMySQL['last_record'] != 0) {
if ($this->_partRepair) {
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary('Part repair enabled. Checking for missing parts.'), true);
}
$this->partRepair($groupMySQL);
} else {
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary('Part repair disabled by user.'), true);
}
}
}
// Generate postdate for first record, for those that upgraded.
if (is_null($groupMySQL['first_record_postdate']) && $groupMySQL['first_record'] != 0) {
$groupMySQL['first_record_postdate'] = $this->postdate($groupMySQL['first_record'], $groupNNTP);
$this->_pdo->queryExec(sprintf('
UPDATE groups
SET first_record_postdate = %s
WHERE id = %d', $this->_pdo->from_unixtime($groupMySQL['first_record_postdate']), $groupMySQL['id']));
}
// Get first article we want aka the oldest.
if ($groupMySQL['last_record'] == 0) {
if ($this->_newGroupScanByDays) {
// For new newsgroups - determine here how far we want to go back using date.
$first = $this->daytopost($this->_newGroupDaysToScan, $groupNNTP);
} else {
if ($groupNNTP['first'] >= $groupNNTP['last'] - ($this->_newGroupMessagesToScan + $this->messageBuffer)) {
// If what we want is lower than the groups first article, set the wanted first to the first.
$first = $groupNNTP['first'];
} else {
// Or else, use the newest article minus how much we should get for new groups.
$first = (string) ($groupNNTP['last'] - ($this->_newGroupMessagesToScan + $this->messageBuffer));
}
}
// We will use this to subtract so we leave articles for the next time (in case the server doesn't have them yet)
$leaveOver = $this->messageBuffer;
// If this is not a new group, go from our newest to the servers newest.
} else {
// Set our oldest wanted to our newest local article.
$first = $groupMySQL['last_record'];
// This is how many articles we will grab. (the servers newest minus our newest).
$totalCount = (string) ($groupNNTP['last'] - $first);
// Check if the server has more articles than our loop limit x 2.
if ($totalCount > $this->messageBuffer * 2) {
// Get the remainder of $totalCount / $this->message buffer
$leaveOver = round($totalCount % $this->messageBuffer, 0, PHP_ROUND_HALF_DOWN) + $this->messageBuffer;
} else {
// Else get half of the available.
$leaveOver = round($totalCount / 2, 0, PHP_ROUND_HALF_DOWN);
}
}
// The last article we want, aka the newest.
$last = $groupLast = (string) ($groupNNTP['last'] - $leaveOver);
// If the newest we want is older than the oldest we want somehow.. set them equal.
if ($last < $first) {
$last = $groupLast = $first;
}
// This is how many articles we are going to get.
$total = (string) ($groupLast - $first);
// This is how many articles are available (without $leaveOver).
$realTotal = (string) ($groupNNTP['last'] - $first);
// Check if we should limit the amount of fetched new headers.
if ($maxHeaders > 0) {
if ($maxHeaders < $groupLast - $first) {
$groupLast = $last = (string) ($first + $maxHeaders);
}
$total = (string) ($groupLast - $first);
}
// If total is bigger than 0 it means we have new parts in the newsgroup.
if ($total > 0) {
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary(($groupMySQL['last_record'] == 0 ? 'New group ' . $groupNNTP['group'] . ' starting with ' . ($this->_newGroupScanByDays ? $this->_newGroupDaysToScan . ' days' : number_format($this->_newGroupMessagesToScan) . ' messages') . ' worth.' : 'Group ' . $groupNNTP['group'] . ' has ' . number_format($realTotal) . ' new articles.') . ' Leaving ' . number_format($leaveOver) . " for next pass.\nServer oldest: " . number_format($groupNNTP['first']) . ' Server newest: ' . number_format($groupNNTP['last']) . ' Local newest: ' . number_format($groupMySQL['last_record'])), true);
}
$done = false;
// Get all the parts (in portions of $this->messageBuffer to not use too much memory).
while ($done === false) {
// Increment last until we reach $groupLast (group newest article).
if ($total > $this->messageBuffer) {
if ((string) ($first + $this->messageBuffer) > $groupLast) {
$last = $groupLast;
} else {
$last = (string) ($first + $this->messageBuffer);
}
}
// Increment first so we don't get an article we already had.
$first++;
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->header("\nGetting " . number_format($last - $first + 1) . ' articles (' . number_format($first) . ' to ' . number_format($last) . ') from ' . $groupMySQL['name'] . " - (" . number_format($groupLast - $last) . " articles in queue)."));
}
// Get article headers from newsgroup.
$scanSummary = $this->scan($groupMySQL, $first, $last);
// Check if we fetched headers.
if (!empty($scanSummary)) {
// If new group, update first record & postdate
if (is_null($groupMySQL['first_record_postdate']) && $groupMySQL['first_record'] == 0) {
$groupMySQL['first_record'] = $scanSummary['firstArticleNumber'];
if (isset($scanSummary['firstArticleDate'])) {
$groupMySQL['first_record_postdate'] = strtotime($scanSummary['firstArticleDate']);
} else {
$groupMySQL['first_record_postdate'] = $this->postdate($groupMySQL['first_record'], $groupNNTP);
}
$this->_pdo->queryExec(sprintf('
UPDATE groups
SET first_record = %s, first_record_postdate = %s
WHERE id = %d', $scanSummary['firstArticleNumber'], $this->_pdo->from_unixtime($this->_pdo->escapeString($groupMySQL['first_record_postdate'])), $groupMySQL['id']));
}
if (isset($scanSummary['lastArticleDate'])) {
$scanSummary['lastArticleDate'] = strtotime($scanSummary['lastArticleDate']);
} else {
$scanSummary['lastArticleDate'] = $this->postdate($scanSummary['lastArticleNumber'], $groupNNTP);
}
$this->_pdo->queryExec(sprintf('
UPDATE groups
SET last_record = %s, last_record_postdate = %s, last_updated = NOW()
WHERE id = %d', $this->_pdo->escapeString($scanSummary['lastArticleNumber']), $this->_pdo->from_unixtime($scanSummary['lastArticleDate']), $groupMySQL['id']));
} else {
// If we didn't fetch headers, update the record still.
$this->_pdo->queryExec(sprintf('
UPDATE groups
SET last_record = %s, last_updated = NOW()
WHERE id = %d', $this->_pdo->escapeString($last), $groupMySQL['id']));
}
if ($last == $groupLast) {
$done = true;
} else {
$first = $last;
}
}
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary(PHP_EOL . 'Group ' . $groupMySQL['name'] . ' processed in ' . number_format(microtime(true) - $startGroup, 2) . ' seconds.'), true);
}
} else {
if ($this->_echoCLI) {
$this->_colorCLI->doEcho($this->_colorCLI->primary('No new articles for ' . $groupMySQL['name'] . ' (first ' . number_format($first) . ', last ' . number_format($last) . ', grouplast ' . number_format($groupMySQL['last_record']) . ', total ' . number_format($total) . ")\n" . 'Server oldest: ' . number_format($groupNNTP['first']) . ' Server newest: ' . number_format($groupNNTP['last']) . ' Local newest: ' . number_format($groupMySQL['last_record'])), true);
}
}
}
