<?php
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
namespace Google\Protobuf\Internal;
use Google\Protobuf\Duration;
use Google\Protobuf\FieldMask;
use Google\Protobuf\Internal\GPBType;
use Google\Protobuf\Internal\RepeatedField;
use Google\Protobuf\Internal\MapField;
function camel2underscore($input) {
preg_match_all(
'!([A-Z][A-Z0-9]*(?=$|[A-Z][a-z0-9])|[A-Za-z][a-z0-9]+)!',
$input,
$matches);
$ret = $matches[0];
foreach ($ret as &$match) {
$match = $match == strtoupper($match) ? strtolower($match) : lcfirst($match);
}
return implode('_', $ret);
}
class GPBUtil
{
const NANOS_PER_MILLISECOND = 1000000;
const NANOS_PER_MICROSECOND = 1000;
const TYPE_URL_PREFIX = 'type.googleapis.com/';
public static function divideInt64ToInt32($value, &$high, &$low, $trim = false)
{
$isNeg = (bccomp($value, 0) < 0);
if ($isNeg) {
$value = bcsub(0, $value);
}
$high = bcdiv($value, 4294967296);
$low = bcmod($value, 4294967296);
if (bccomp($high, 2147483647) > 0) {
$high = (int) bcsub($high, 4294967296);
} else {
$high = (int) $high;
}
if (bccomp($low, 2147483647) > 0) {
$low = (int) bcsub($low, 4294967296);
} else {
$low = (int) $low;
}
if ($isNeg) {
$high = ~$high;
$low = ~$low;
$low++;
if (!$low) {
$high = (int)($high + 1);
}
}
if ($trim) {
$high = 0;
}
}
public static function checkString(&$var, $check_utf8)
{
if (is_array($var) || is_object($var)) {
throw new \InvalidArgumentException("Expect string.");
}
if (!is_string($var)) {
$var = strval($var);
}
if ($check_utf8 && !preg_match('//u', $var)) {
throw new \Exception("Expect utf-8 encoding.");
}
}
public static function checkEnum(&$var)
{
static::checkInt32($var);
}
public static function checkInt32(&$var)
{
if (is_numeric($var)) {
$var = intval($var);
} else {
throw new \Exception("Expect integer.");
}
}
public static function checkUint32(&$var)
{
if (is_numeric($var)) {
if (PHP_INT_SIZE === 8) {
$var = intval($var);
$var |= ((-(($var >> 31) & 0x1)) & ~0xFFFFFFFF);
} else {
if (bccomp($var, 0x7FFFFFFF) > 0) {
$var = bcsub($var, "4294967296");
}
$var = (int) $var;
}
} else {
throw new \Exception("Expect integer.");
}
}
public static function checkInt64(&$var)
{
if (is_numeric($var)) {
if (PHP_INT_SIZE == 8) {
$var = intval($var);
} else {
if (is_float($var) ||
is_integer($var) ||
(is_string($var) &&
bccomp($var, "9223372036854774784") < 0)) {
$var = number_format($var, 0, ".", "");
}
}
} else {
throw new \Exception("Expect integer.");
}
}
public static function checkUint64(&$var)
{
if (is_numeric($var)) {
if (PHP_INT_SIZE == 8) {
$var = intval($var);
} else {
$var = number_format($var, 0, ".", "");
}
} else {
throw new \Exception("Expect integer.");
}
}
public static function checkFloat(&$var)
{
if (is_float($var) || is_numeric($var)) {
$var = unpack("f", pack("f", $var))[1];
} else {
throw new \Exception("Expect float.");
}
}
public static function checkDouble(&$var)
{
if (is_float($var) || is_numeric($var)) {
$var = floatval($var);
} else {
throw new \Exception("Expect float.");
}
}
public static function checkBool(&$var)
{
if (is_array($var) || is_object($var)) {
throw new \Exception("Expect boolean.");
}
$var = boolval($var);
}
public static function checkMessage(&$var, $klass, $newClass = null)
{
if (!$var instanceof $klass && !is_null($var)) {
throw new \Exception("Expect $klass.");
}
}
public static function checkRepeatedField(&$var, $type, $klass = null)
{
if (!$var instanceof RepeatedField && !is_array($var)) {
throw new \Exception("Expect array.");
}
if (is_array($var)) {
$tmp = new RepeatedField($type, $klass);
foreach ($var as $value) {
$tmp[] = $value;
}
return $tmp;
} else {
if ($var->getType() != $type) {
throw new \Exception(
"Expect repeated field of different type.");
}
if ($var->getType() === GPBType::MESSAGE &&
$var->getClass() !== $klass &&
$var->getLegacyClass() !== $klass) {
throw new \Exception(
"Expect repeated field of " . $klass . ".");
}
return $var;
}
}
public static function checkMapField(&$var, $key_type, $value_type, $klass = null)
{
if (!$var instanceof MapField && !is_array($var)) {
throw new \Exception("Expect dict.");
}
if (is_array($var)) {
$tmp = new MapField($key_type, $value_type, $klass);
foreach ($var as $key => $value) {
$tmp[$key] = $value;
}
return $tmp;
} else {
if ($var->getKeyType() != $key_type) {
throw new \Exception("Expect map field of key type.");
}
if ($var->getValueType() != $value_type) {
throw new \Exception("Expect map field of value type.");
}
if ($var->getValueType() === GPBType::MESSAGE &&
$var->getValueClass() !== $klass &&
$var->getLegacyValueClass() !== $klass) {
throw new \Exception(
"Expect map field of " . $klass . ".");
}
return $var;
}
}
public static function Int64($value)
{
return new Int64($value);
}
public static function Uint64($value)
{
return new Uint64($value);
}
public static function getClassNamePrefix(
$classname,
$file_proto)
{
$option = $file_proto->getOptions();
$prefix = is_null($option) ? "" : $option->getPhpClassPrefix();
if ($prefix !== "") {
return $prefix;
}
$reserved_words = array(
"abstract"=>0, "and"=>0, "array"=>0, "as"=>0, "break"=>0,
"callable"=>0, "case"=>0, "catch"=>0, "class"=>0, "clone"=>0,
"const"=>0, "continue"=>0, "declare"=>0, "default"=>0, "die"=>0,
"do"=>0, "echo"=>0, "else"=>0, "elseif"=>0, "empty"=>0,
"enddeclare"=>0, "endfor"=>0, "endforeach"=>0, "endif"=>0,
"endswitch"=>0, "endwhile"=>0, "eval"=>0, "exit"=>0, "extends"=>0,
"final"=>0, "finally"=>0, "fn"=>0, "for"=>0, "foreach"=>0,
"function"=>0, "global"=>0, "goto"=>0, "if"=>0, "implements"=>0,
"include"=>0, "include_once"=>0, "instanceof"=>0, "insteadof"=>0,
"interface"=>0, "isset"=>0, "list"=>0, "match"=>0, "namespace"=>0,
"new"=>0, "or"=>0, "print"=>0, "private"=>0, "protected"=>0,
"public"=>0, "require"=>0, "require_once"=>0, "return"=>0,
"static"=>0, "switch"=>0, "throw"=>0, "trait"=>0, "try"=>0,
"unset"=>0, "use"=>0, "var"=>0, "while"=>0, "xor"=>0, "yield"=>0,
"int"=>0, "float"=>0, "bool"=>0, "string"=>0, "true"=>0, "false"=>0,
"null"=>0, "void"=>0, "iterable"=>0
);
if (array_key_exists(strtolower($classname), $reserved_words)) {
if ($file_proto->getPackage() === "google.protobuf") {
return "GPB";
} else {
return "PB";
}
}
return "";
}
public static function getLegacyClassNameWithoutPackage(
$name,
$file_proto)
{
$classname = implode('_', explode('.', $name));
return static::getClassNamePrefix($classname, $file_proto) . $classname;
}
public static function getClassNameWithoutPackage(
$name,
$file_proto)
{
$parts = explode('.', $name);
foreach ($parts as $i => $part) {
$parts[$i] = static::getClassNamePrefix($parts[$i], $file_proto) . $parts[$i];
}
return implode('\\', $parts);
}
public static function getFullClassName(
$proto,
$containing,
$file_proto,
&$message_name_without_package,
&$classname,
&$legacy_classname,
&$fullname)
{
// Full name needs to start with '.'.
$message_name_without_package = $proto->getName();
if ($containing !== "") {
$message_name_without_package =
$containing . "." . $message_name_without_package;
}
$package = $file_proto->getPackage();
if ($package === "") {
$fullname = $message_name_without_package;
} else {
$fullname = $package . "." . $message_name_without_package;
}
$class_name_without_package =
static::getClassNameWithoutPackage($message_name_without_package, $file_proto);
$legacy_class_name_without_package =
static::getLegacyClassNameWithoutPackage(
$message_name_without_package, $file_proto);
$option = $file_proto->getOptions();
if (!is_null($option) && $option->hasPhpNamespace()) {
$namespace = $option->getPhpNamespace();
if ($namespace !== "") {
$classname = $namespace . "\\" . $class_name_without_package;
$legacy_classname =
$namespace . "\\" . $legacy_class_name_without_package;
return;
} else {
$classname = $class_name_without_package;
$legacy_classname = $legacy_class_name_without_package;
return;
}
}
if ($package === "") {
$classname = $class_name_without_package;
$legacy_classname = $legacy_class_name_without_package;
} else {
$parts = array_map('ucwords', explode('.', $package));
foreach ($parts as $i => $part) {
$parts[$i] = self::getClassNamePrefix($part, $file_proto).$part;
}
$classname =
implode('\\', $parts) .
"\\".self::getClassNamePrefix($class_name_without_package,$file_proto).
$class_name_without_package;
$legacy_classname =
implode('\\', array_map('ucwords', explode('.', $package))).
"\\".$legacy_class_name_without_package;
}
}
public static function combineInt32ToInt64($high, $low)
{
$isNeg = $high < 0;
if ($isNeg) {
$high = ~$high;
$low = ~$low;
$low++;
if (!$low) {
$high = (int) ($high + 1);
}
}
$result = bcadd(bcmul($high, 4294967296), $low);
if ($low < 0) {
$result = bcadd($result, 4294967296);
}
if ($isNeg) {
$result = bcsub(0, $result);
}
return $result;
}
public static function parseTimestamp($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);
// 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 $value;
}
public static function formatTimestamp($value)
{
if (bccomp($value->getSeconds(), "253402300800") != -1) {
throw new GPBDecodeException("Duration number too large.");
}
if (bccomp($value->getSeconds(), "-62135596801") != 1) {
throw new GPBDecodeException("Duration number too small.");
}
$nanoseconds = static::getNanosecondsForTimestamp($value->getNanos());
if (!empty($nanoseconds)) {
$nanoseconds = ".".$nanoseconds;
}
$date = new \DateTime('@'.$value->getSeconds(), new \DateTimeZone("UTC"));
return $date->format("Y-m-d\TH:i:s".$nanoseconds."\Z");
}
public static function parseDuration($value)
{
if (strlen($value) < 2 || substr($value, -1) !== "s") {
throw new GPBDecodeException("Missing s after duration string");
}
$number = substr($value, 0, -1);
if (bccomp($number, "315576000001") != -1) {
throw new GPBDecodeException("Duration number too large.");
}
if (bccomp($number, "-315576000001") != 1) {
throw new GPBDecodeException("Duration number too small.");
}
$pos = strrpos($number, ".");
if ($pos !== false) {
$seconds = substr($number, 0, $pos);
if (bccomp($seconds, 0) < 0) {
$nanos = bcmul("0" . substr($number, $pos), -1000000000);
} else {
$nanos = bcmul("0" . substr($number, $pos), 1000000000);
}
} else {
$seconds = $number;
$nanos = 0;
}
$duration = new Duration();
$duration->setSeconds($seconds);
$duration->setNanos($nanos);
return $duration;
}
public static function formatDuration($value)
{
if (bccomp($value->getSeconds(), '315576000001') != -1) {
throw new GPBDecodeException('Duration number too large.');
}
if (bccomp($value->getSeconds(), '-315576000001') != 1) {
throw new GPBDecodeException('Duration number too small.');
}
$nanos = $value->getNanos();
if ($nanos === 0) {
return (string) $value->getSeconds();
}
if ($nanos % 1000000 === 0) {
$digits = 3;
} elseif ($nanos % 1000 === 0) {
$digits = 6;
} else {
$digits = 9;
}
$nanos = bcdiv($nanos, '1000000000', $digits);
return bcadd($value->getSeconds(), $nanos, $digits);
}
public static function parseFieldMask($paths_string)
{
$field_mask = new FieldMask();
if (strlen($paths_string) === 0) {
return $field_mask;
}
$path_strings = explode(",", $paths_string);
$paths = $field_mask->getPaths();
foreach($path_strings as &$path_string) {
$field_strings = explode(".", $path_string);
foreach($field_strings as &$field_string) {
$field_string = camel2underscore($field_string);
}
$path_string = implode(".", $field_strings);
$paths[] = $path_string;
}
return $field_mask;
}
public static function formatFieldMask($field_mask)
{
$converted_paths = [];
foreach($field_mask->getPaths() as $path) {
$fields = explode('.', $path);
$converted_path = [];
foreach ($fields as $field) {
$segments = explode('_', $field);
$start = true;
$converted_segments = "";
foreach($segments as $segment) {
if (!$start) {
$converted = ucfirst($segment);
} else {
$converted = $segment;
$start = false;
}
$converted_segments .= $converted;
}
$converted_path []= $converted_segments;
}
$converted_path = implode(".", $converted_path);
$converted_paths []= $converted_path;
}
return implode(",", $converted_paths);
}
public static function getNanosecondsForTimestamp($nanoseconds)
{
if ($nanoseconds == 0) {
return '';
}
if ($nanoseconds % static::NANOS_PER_MILLISECOND == 0) {
return sprintf('%03d', $nanoseconds / static::NANOS_PER_MILLISECOND);
}
if ($nanoseconds % static::NANOS_PER_MICROSECOND == 0) {
return sprintf('%06d', $nanoseconds / static::NANOS_PER_MICROSECOND);
}
return sprintf('%09d', $nanoseconds);
}
public static function hasSpecialJsonMapping($msg)
{
return is_a($msg, 'Google\Protobuf\Any') ||
is_a($msg, "Google\Protobuf\ListValue") ||
is_a($msg, "Google\Protobuf\Struct") ||
is_a($msg, "Google\Protobuf\Value") ||
is_a($msg, "Google\Protobuf\Duration") ||
is_a($msg, "Google\Protobuf\Timestamp") ||
is_a($msg, "Google\Protobuf\FieldMask") ||
static::hasJsonValue($msg);
}
public static function hasJsonValue($msg)
{
return is_a($msg, "Google\Protobuf\DoubleValue") ||
is_a($msg, "Google\Protobuf\FloatValue") ||
is_a($msg, "Google\Protobuf\Int64Value") ||
is_a($msg, "Google\Protobuf\UInt64Value") ||
is_a($msg, "Google\Protobuf\Int32Value") ||
is_a($msg, "Google\Protobuf\UInt32Value") ||
is_a($msg, "Google\Protobuf\BoolValue") ||
is_a($msg, "Google\Protobuf\StringValue") ||
is_a($msg, "Google\Protobuf\BytesValue");
}
}