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#!/usr/bin/php
<?php
/**
* program izpiše bind9 aclje za države v ripe območju.
* privzeto izpiše vse, vendar bind9 umre ob prevelikem številu acljev
* uporaba: ./ipranges.php si de hr it
* ali ./ipranges.php
* ali ./ipranges.php json
* ali ./ipranges.php moodle si de hr it
* ali ./ipranges.php moodle
* ali ./ipranges.php moodle4 # samo ipv4 naslovi
* v argumentih lahko torej povemo, za katere države želimo aclje
* moodle se navezuje na polje za vnos IPjev v pluginu multi-factor authentication
* https://ucilnica.fmf.uni-lj.si/admin/settings.php?section=factor_iprange
* z drugimi besedami izpiše range, ločene z newlineom
* POZOR: output tip moodle odstrani tiste ranges, ki so oblike xxx-yyy!!!
*/
$a = "";
$p = [];
$c = [];
$response = file_get_contents("https://ftp.ripe.net/pub/stats/ripencc/membership/alloclist.txt");
if ($response === false)
exit(1);
if (isset($_REQUEST["argv"])) {
$argv = $_REQUEST["argv"];
$invocation = $_SERVER["REQUEST_SCHEME"] . "://" . $_SERVER["HTTP_HOST"] . $_SERVER["REQUEST_URI"];
} else
$invocation = implode(" ", $argv);
foreach (explode("\n", $response) as $l) {
if ($l == "")
continue;
if ($l[0] != " ") {
$a = trim($l);
$p[$a] = [];
$c[explode(".", $a)[0]][] = $a;
continue;
}
if (strchr(trim($l), "\t") !== false)
$p[$a]["ranges"][] = explode("\t", trim($l));
else
$p[$a]["name"] = trim($l);
}
ksort($p);
if (sizeof($argv) == 2 && strtolower($argv[1]) == "json") {
if (isset($_REQUEST["argv"]))
header("Content-Type: application/json");
die(json_encode(["meta" => ["generator" => "http://ni.4a.si/sijanec/r/tree/skripti/ipranges.php", "invocation" => $invocation, "date" => date("Y-m-d H:i:s")], "data" => $p]) . PHP_EOL);
}
if (str_contains(strtolower($argv[1]), "moodle")) {
if (isset($_REQUEST["argv"])) {
header("Content-Type: text/plain");
echo "# " . $invocation . PHP_EOL;
} else
echo "# " . $invocation . PHP_EOL;
echo "# http://ni.4a.si/sijanec/r/tree/skripti/ipranges.php" . PHP_EOL . "# " . date("Y-m-d H:i:s") . PHP_EOL;
echo PHP_EOL;
foreach ($p as $k => $v) {
if (sizeof($argv) > 2)
if (!in_array(explode(".", $k)[0], $argv))
continue;
echo "# $k\t{$v["name"]}" . PHP_EOL;
foreach($v["ranges"] as $r) {
if (str_contains($argv[1], "4") && str_contains($r[1], ":"))
continue;
if (str_contains($r[1], "-"))
continue;
echo "{$r[1]}\t# {$r[0]}" . PHP_EOL;
}
echo PHP_EOL;
}
die();
}
if (isset($_REQUEST["argv"]))
header("Content-Type: text/plain");
echo "// http://ni.4a.si/sijanec/r/tree/skripti/ipranges.php" . PHP_EOL . "// $invocation" . PHP_EOL . "// " . date("Y-m-d H:i:s") . PHP_EOL . PHP_EOL;
foreach ($p as $k => $v) {
if (sizeof($argv) > 1)
if (!in_array(explode(".", $k)[0], $argv))
continue;
echo "acl $k {\t// {$v['name']}" . PHP_EOL;
foreach ($v["ranges"] as $r) {
echo "\t{$r[1]}; //\t{$r[0]}" . PHP_EOL;
}
echo "};" . PHP_EOL;
}
foreach ($c as $k => $v) {
if (sizeof($argv) > 1)
if (!in_array($k, $argv))
continue;
echo "acl $k {" . PHP_EOL;
foreach ($v as $a) {
echo "\t$a;\t// {$p[$a]["name"]}" . PHP_EOL;
}
echo "};" . PHP_EOL;
}
str_replace("/", "", str_replace(".", "", array_shift($argv)));
echo "acl ipranges.php {" . PHP_EOL;
foreach ($argv as $a) {
echo "\t$a;" . PHP_EOL;
}
echo "};" . PHP_EOL;
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