function GPBUtil::parseTimestamp

2 calls to GPBUtil::parseTimestamp()

Message::convertJsonValueToProtoValue in vendor/google/protobuf/src/Google/Protobuf/Internal/Message.php

Message::mergeFromJsonArray in vendor/google/protobuf/src/Google/Protobuf/Internal/Message.php

File

vendor/google/protobuf/src/Google/Protobuf/Internal/GPBUtil.php, line 431

Class

GPBUtil

Namespace

Google\Protobuf\Internal

Code

public static function parseTimestamp($timestamp) {
    // prevent parsing timestamps containing with the non-existent year "0000"
    // DateTime::createFromFormat parses without failing but as a nonsensical date
    if (substr($timestamp, 0, 4) === "0000") {
        throw new \Exception("Year cannot be zero.");
    }
    // prevent parsing timestamps ending with a lowercase z
    if (substr($timestamp, -1, 1) === "z") {
        throw new \Exception("Timezone cannot be a lowercase z.");
    }
    $nanoseconds = 0;
    $periodIndex = strpos($timestamp, ".");
    if ($periodIndex !== false) {
        $nanosecondsLength = 0;
        // find the next non-numeric character in the timestamp to calculate
        // the length of the nanoseconds text
        for ($i = $periodIndex + 1, $length = strlen($timestamp); $i < $length; $i++) {
            if (!is_numeric($timestamp[$i])) {
                $nanosecondsLength = $i - ($periodIndex + 1);
                break;
            }
        }
        if ($nanosecondsLength % 3 !== 0) {
            throw new \Exception("Nanoseconds must be disible by 3.");
        }
        if ($nanosecondsLength > 9) {
            throw new \Exception("Nanoseconds must be in the range of 0 to 999,999,999 nanoseconds.");
        }
        if ($nanosecondsLength > 0) {
            $nanoseconds = substr($timestamp, $periodIndex + 1, $nanosecondsLength);
            $nanoseconds = intval($nanoseconds);
            if ($nanosecondsLength < 9) {
                $nanoseconds = $nanoseconds * pow(10, 9 - $nanosecondsLength);
            }
            // remove the nanoseconds and preceding period from the timestamp
            $date = substr($timestamp, 0, $periodIndex);
            $timezone = substr($timestamp, $periodIndex + $nanosecondsLength + 1);
            $timestamp = $date . $timezone;
        }
    }
    $date = \DateTime::createFromFormat(\DateTime::RFC3339, $timestamp, new \DateTimeZone("UTC"));
    if ($date === false) {
        throw new \Exception("Invalid RFC 3339 timestamp.");
    }
    $value = new \Google\Protobuf\Timestamp();
    $seconds = $date->format("U");
    $value->setSeconds($seconds);
    $value->setNanos($nanoseconds);
    return $value;
}