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Improve error messages

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This commit is contained in:
Niklas Keller 2018-05-01 19:55:02 +02:00
parent 41d02a30bb
commit d8d497458a
1 changed files with 24 additions and 7 deletions
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31
lib/BasicResolver.php
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@ -134,13 +134,17 @@ final class BasicResolver implements Resolver {
break; // Break redirect loop, otherwise we query the same records 5 times
} catch (MultiReasonException $e) {
$errors = [];
foreach ($e->getReasons() as $reason) {
if ($reason instanceof NoRecordException) {
throw $reason;
}
$errors[] = $reason->getMessage();
}
throw new ResolutionException("All query attempts failed", 0, $e);
throw new ResolutionException("All query attempts failed for {$name}: " . \implode(", ", $errors), 0, $e);
}
}
} catch (NoRecordException $e) {
@ -209,6 +213,8 @@ final class BasicResolver implements Resolver {
$uri = $protocol . "://" . $nameservers[0];
$socket = yield $this->getSocket($uri);
$attemptDescription = [];
while ($attempt < $attempts) {
try {
if (!$socket->isAlive()) {
@ -217,9 +223,12 @@ final class BasicResolver implements Resolver {
/** @var Socket $server */
$i = $attempt % \count($nameservers);
$socket = yield $this->getSocket($protocol . "://" . $nameservers[$i]);
$uri = $protocol . "://" . $nameservers[$i];
$socket = yield $this->getSocket($uri);
}
$attemptDescription[] = $uri;
/** @var Message $response */
$response = yield $socket->ask($question, $this->config->getTimeout());
$this->assertAcceptableResponse($response);
@ -237,11 +246,12 @@ final class BasicResolver implements Resolver {
// Retry with TCP, don't count attempt
$protocol = "tcp";
$i = $attempt % \count($nameservers);
$socket = yield $this->getSocket($protocol . "://" . $nameservers[$i]);
$uri = $protocol . "://" . $nameservers[$i];
$socket = yield $this->getSocket($uri);
continue;
}
throw new ResolutionException("Server returned truncated response");
throw new ResolutionException("Server returned a truncated response for '{$name}' (" . Record::getName($type) . ")");
}
$answers = $response->getAnswerRecords();
@ -265,7 +275,7 @@ final class BasicResolver implements Resolver {
if (!isset($result[$type])) {
// "it MUST NOT cache it for longer than five (5) minutes" per RFC 2308 section 7.1
$this->cache->set($this->getCacheKey($name, $type), \json_encode([]), 300);
throw new NoRecordException("No records returned for {$name}");
throw new NoRecordException("No records returned for '{$name}' (" . Record::getName($type) . ")");
}
return \array_map(function ($data) use ($type, $ttls) {
@ -279,13 +289,20 @@ final class BasicResolver implements Resolver {
});
$i = ++$attempt % \count($nameservers);
$socket = yield $this->getSocket($protocol . "://" . $nameservers[$i]);
$uri = $protocol . "://" . $nameservers[$i];
$socket = yield $this->getSocket($uri);
continue;
}
}
throw new TimeoutException("No response from any nameserver after {$attempts} attempts");
throw new TimeoutException(\sprintf(
"No response for '%s' (%s) from any nameserver after %d attempts, tried %s",
$name,
Record::getName($type),
$attempts,
\implode(", ", $attemptDescription)
));
});
$this->pendingQueries[$type . " " . $name] = $promise;