mirror of
https://github.com/renbaoshuo/S2OJ.git
synced 2024-11-26 23:36:20 +00:00
34 lines
831 B
PHP
34 lines
831 B
PHP
|
<?php
|
||
|
|
|
||
|
|
function uojRand($l, $r) {
|
||
|
|
return mt_rand($l, $r);
|
||
|
|
}
|
||
|
|
|
||
|
|
function uojRandString($len, $charset = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ') {
|
||
|
|
$n_chars = strlen($charset);
|
||
|
|
$str = '';
|
||
|
|
for ($i = 0; $i < $len; $i++) {
|
||
|
|
$str .= $charset[uojRand(0, $n_chars - 1)];
|
||
|
|
}
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
function uojRandAvaiableFileName($dir) {
|
||
|
|
do {
|
||
|
|
$fileName = $dir . uojRandString(20);
|
||
|
|
} while (file_exists(UOJContext::storagePath().$fileName));
|
||
|
|
return $fileName;
|
||
|
|
}
|
||
|
|
|
||
|
|
function uojRandAvaiableTmpFileName() {
|
||
|
|
return uojRandAvaiableFileName('/tmp/');
|
||
|
|
}
|
||
|
|
|
||
|
|
function uojRandAvaiableSubmissionFileName() {
|
||
|
|
$num = uojRand(1, 10000);
|
||
|
|
if (!file_exists(UOJContext::storagePath()."/submission/$num")) {
|
||
|
|
system("mkdir ".UOJContext::storagePath()."/submission/$num");
|
||
|
|
}
|
||
|
|
return uojRandAvaiableFileName("/submission/$num/");
|
||
|
|
}
|