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google.php
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<?php
require_once __DIR__ . '/vendor/autoload.php';
use vielhuber\stringhelper\__;
class GoogleTranslate
{
function translate($input,$sl,$tl)
{
$result=array();
$split=explode("\n",$input);
foreach($split as $string) {
$string = $this->parseResultPre($string);
$args = [
'anno' => 3,
'client' => 'te_lib',
'format' => 'html',
'v' => '1.0',
'key' => 'AIzaSyBOti4mM-6x9WDnZIjIeyEU21OpBXqWBgw',
'logld' => 'vTE_20200210_00',
'sl' => $sl,
'tl' => $tl,
'sp' => 'nmt',
'tc' => 1,
'sr' => 1,
'tk' => $this->generateTk($string, $this->generateTkk()),
'mode' => 1
];
$response = __::curl(
'https://translate.googleapis.com/translate_a/t?' . http_build_query($args),
['q' => $string],
'POST',
[
'User-Agent' =>
'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36',
'Content-Length' => strlen('q=' . urlencode($string))
],
false,
false,
3
);
$result[]=$this->parseResultPost($response->result);
}
return implode("\n",$result);
}
private function parseResultPre($input)
{
// google sometimes surrounds the translation with <i> and <b> tags
// do distinguish real i-/b-tags, replace them (we undo that later on)
$dom = __::str_to_dom($input);
$xpath = new \DOMXPath($dom);
foreach (['i', 'b'] as $tags__value) {
foreach ($dom->getElementsByTagName($tags__value) as $divs__value) {
$divs__value->setAttribute('data-native', 'true');
}
}
$nodes = $xpath->query('/html/body//*');
if (count($nodes) > 0) {
$id = 1;
foreach ($nodes as $nodes__value) {
$nodes__value->setAttribute('gtid', $id);
$id++;
}
}
$output = __::dom_to_str($dom);
return $output;
}
private function parseResultPost($res)
{
// discard the (outer) <i>-tags and take the content of the <b>-tags
$output = '';
$pointer = 0;
$lvl_i = 0;
$lvl_i_inner = 0;
$lvl_b = 0;
$lvl_b_inner = 0;
$input=is_array($res)?$res[0]:$res;
// multibyte split to array of chars
foreach (preg_split('//u', $input, -1, PREG_SPLIT_NO_EMPTY) as $chars__value) {
if ($pointer >= 3 && mb_substr($input, $pointer - 3, 3) === '<i>') {
$lvl_i_inner++;
}
if ($pointer >= 3 && mb_substr($input, $pointer - 3, 3) === '<b>') {
$lvl_b_inner++;
}
if (mb_substr($input, $pointer, 4) === '</i>' && $lvl_i_inner > 0) {
$lvl_i_inner--;
}
if (mb_substr($input, $pointer, 4) === '</b>' && $lvl_b_inner > 0) {
$lvl_b_inner--;
}
if (mb_substr($input, $pointer, 3) === '<i>') {
$lvl_i++;
}
if (mb_substr($input, $pointer, 3) === '<b>') {
$lvl_b++;
}
if ($pointer >= 4 && mb_substr($input, $pointer - 4, 4) === '</i>' && $lvl_i > 0) {
$lvl_i--;
}
if ($pointer >= 4 && mb_substr($input, $pointer - 4, 4) === '</b>' && $lvl_b > 0) {
$lvl_b--;
}
$pointer++;
// discard multiple spaces
if ($chars__value === ' ' && mb_strlen($output) > 0 && mb_substr($output, -1) === ' ') {
continue;
}
// save
if (($lvl_b_inner >= 1 && $lvl_i_inner === 0) || ($lvl_b === 0 && $lvl_i === 0)) {
$output .= $chars__value;
}
}
$output = trim($output);
$dom = __::str_to_dom($output);
$xpath = new \DOMXPath($dom);
foreach (['i', 'b'] as $tags__value) {
foreach ($dom->getElementsByTagName($tags__value) as $divs__value) {
$divs__value->removeAttribute('data-native');
}
}
// merge neighbour elements with the same id together
$nodes = $xpath->query('/html/body//*[@gtid]');
if (count($nodes) > 0) {
foreach ($nodes as $nodes__value) {
if ($nodes__value->hasAttribute('please-remove')) {
continue;
}
$id = $nodes__value->getAttribute('gtid');
$html = $nodes__value->nodeValue;
$nextSibling = $nodes__value->nextSibling;
if ($nextSibling === null) {
continue;
}
if ($nextSibling->nodeName === '#text' && trim($nextSibling->textContent) == '') {
$nextSibling = $nextSibling->nextSibling;
}
if ($nextSibling === null || $nextSibling->nodeName === '#text') {
continue;
}
$id2 = $nextSibling->getAttribute('gtid');
if ($id !== $id2) {
continue;
}
$nextSibling->setAttribute('please-remove', '1');
$html .= ' ' . $nextSibling->nodeValue;
$nodes__value->nodeValue = $html;
}
foreach ($nodes as $nodes__value) {
$nodes__value->removeAttribute('gtid');
if ($nodes__value->hasAttribute('please-remove')) {
$nodes__value->parentNode->removeChild($nodes__value);
}
}
}
$output = __::dom_to_str($dom);
return $output;
}
private function generateTkk()
{
$cache = sys_get_temp_dir() . '/tkk.cache';
if (file_exists($cache) && filemtime($cache) > strtotime('now - 1 hour')) {
return file_get_contents($cache);
}
$data = __::curl('https://translate.googleapis.com/translate_a/element.js', null, 'GET');
$response = $data->result;
$pos1 = mb_strpos($response, 'c._ctkk=\'') + mb_strlen('c._ctkk=\'');
$pos2 = mb_strpos($response, '\'', $pos1);
$tkk = mb_substr($response, $pos1, $pos2 - $pos1);
file_put_contents($cache, $tkk);
return $tkk;
}
private function generateTk($f0, $w1)
{
// ported from js to php from https://translate.googleapis.com/element/TE_20200210_00/e/js/element/element_main.js
$w1 = explode('.', $w1);
$n2 = $w1[0];
for ($j3 = [], $t4 = 0, $h5 = 0; $h5 < strlen(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')) / 2; $h5++) {
$z6 =
ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[$h5 * 2]) +
(ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[$h5 * 2 + 1]) << 8);
if (128 > $z6) {
$j3[$t4++] = $z6;
} else {
if (2048 > $z6) {
$j3[$t4++] = ($z6 >> 6) | 192;
} else {
if (
55296 == ($z6 & 64512) &&
$h5 + 1 < strlen(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')) / 2 &&
56320 ==
((ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[($h5 + 1) * 2]) +
(ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[($h5 + 1) * 2 + 1]) << 8)) &
64512)
) {
$h5++;
$z6 =
65536 +
(($z6 & 1023) << 10) +
((ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[$h5 * 2]) +
(ord(mb_convert_encoding($f0, 'UTF-16LE', 'UTF-8')[$h5 * 2 + 1]) << 8)) &
1023);
$j3[$t4++] = ($z6 >> 18) | 240;
$j3[$t4++] = (($z6 >> 12) & 63) | 128;
} else {
$j3[$t4++] = ($z6 >> 12) | 224;
}
$j3[$t4++] = (($z6 >> 6) & 63) | 128;
}
$j3[$t4++] = ($z6 & 63) | 128;
}
}
$f0 = $n2;
for ($t4 = 0; $t4 < count($j3); $t4++) {
$f0 += $j3[$t4];
$c7 = $f0;
$x8 = '+-a^+6';
for ($r9 = 0; $r9 < strlen($x8) - 2; $r9 += 3) {
$u10 = $x8[$r9 + 2];
$u10 = 'a' <= $u10 ? ord($u10[0]) - 87 : intval($u10);
$a11 = $c7;
$c12 = $u10;
if ($c12 >= 32 || $c12 < -32) {
$c13 = (int) ($c12 / 32);
$c12 = $c12 - $c13 * 32;
}
if ($c12 < 0) {
$c12 = 32 + $c12;
}
if ($c12 == 0) {
return (($a11 >> 1) & 0x7fffffff) * 2 + (($a11 >> $c12) & 1);
}
if ($a11 < 0) {
$a11 = $a11 >> 1;
$a11 &= 2147483647;
$a11 |= 0x40000000;
$a11 = $a11 >> $c12 - 1;
} else {
$a11 = $a11 >> $c12;
}
$b14 = $a11;
$u10 = '+' == $x8[$r9 + 1] ? $b14 : $c7 << $u10;
$c7 = '+' == $x8[$r9] ? ($c7 + $u10) & 4294967295 : $c7 ^ $u10;
}
$f0 = $c7;
}
$c7 = $f0;
$x8 = '+-3^+b+-f';
for ($r9 = 0; $r9 < strlen($x8) - 2; $r9 += 3) {
$u10 = $x8[$r9 + 2];
$u10 = 'a' <= $u10 ? ord($u10[0]) - 87 : intval($u10);
$a11 = $c7;
$c12 = $u10;
if ($c12 >= 32 || $c12 < -32) {
$c13 = (int) ($c12 / 32);
$c12 = $c12 - $c13 * 32;
}
if ($c12 < 0) {
$c12 = 32 + $c12;
}
if ($c12 == 0) {
return (($a11 >> 1) & 0x7fffffff) * 2 + (($a11 >> $c12) & 1);
}
if ($a11 < 0) {
$a11 = $a11 >> 1;
$a11 &= 2147483647;
$a11 |= 0x40000000;
$a11 = $a11 >> $c12 - 1;
} else {
$a11 = $a11 >> $c12;
}
$b14 = $a11;
$u10 = '+' == $x8[$r9 + 1] ? $b14 : $c7 << $u10;
$c7 = '+' == $x8[$r9] ? ($c7 + $u10) & 4294967295 : $c7 ^ $u10;
}
$f0 = $c7;
$f0 ^= $w1[1] ? $w1[1] + 0 : 0;
if (0 > $f0) {
$f0 = ($f0 & 2147483647) + 2147483648;
}
$f0 = fmod($f0, pow(10, 6));
return $f0 . '.' . ($f0 ^ $n2);
}
}
?>