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Update contact form spam detection

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This commit is contained in:
Skylar Ittner 2025-12-14 16:47:02 -07:00
parent 4229a10956
commit 8a18007fd9
9 changed files with 31868 additions and 36777 deletions
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13
endpoints/net.contactspam.php
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@ -8,7 +8,9 @@ const BANNED_WORDLIST = __DIR__ . "/../resources/net.contactspam/bannedwords.txt
// Banned email domain check, one domain per line, useful if you get lots of spam from
// a domain your customers probably won't legitimately use
const BANNED_EMAIL_DOMAINS = __DIR__ . "/../resources/net.contactspam/banneddomains.txt";
const BANNED_REFERRALSPAM_DOMAINS = __DIR__ . "/../resources/net.contactspam/matomoreferralspamdomains.txt";
const BANNED_SPAM_DOMAINS = __DIR__ . "/../resources/net.contactspam/toxic_domains_whole.txt";
const BANNED_SPAM_DOMAINS_PARTIAL = __DIR__ . "/../resources/net.contactspam/toxic_domains_partial.txt";
const BANNED_IP_LIST = __DIR__ . "/../resources/net.contactspam/bannedips.txt";
const BANNED_IP_CIDR = __DIR__ . "/../resources/net.contactspam/toxic_ip_cidr.txt";
// Domains to skip looking up for SURBL
@ -39,7 +41,9 @@ if (isset($VARS["message"])) {
//
// Check email domain
//
$banneddomainlist = file(BANNED_EMAIL_DOMAINS, FILE_IGNORE_NEW_LINES);
$banneddomainlist1 = file(BANNED_EMAIL_DOMAINS, FILE_IGNORE_NEW_LINES);
$banneddomainlist2 = file(BANNED_REFERRALSPAM_DOMAINS, FILE_IGNORE_NEW_LINES);
$banneddomainlist = array_merge($banneddomainlist1, $banneddomainlist2);
foreach ($banneddomainlist as $domain) {
if ($email_domain == $domain) {
exitWithJson(["status" => "OK", "clean" => false, "filter" => "domain", "hit" => $domain, "message" => "Emails from \"" . htmlspecialchars($domain) . "\" are not allowed because of spam/abuse." . ($domain == "googlemail.com" ? " (Hint: use gmail.com instead)" : "")]);
@ -144,6 +148,7 @@ $lists = [
"black.uribl.com"
];
$bannedspamdomains = file(BANNED_SPAM_DOMAINS, FILE_IGNORE_NEW_LINES);
$bannedpartialdomains = file(BANNED_SPAM_DOMAINS_PARTIAL, FILE_IGNORE_NEW_LINES);
try {
// Matches domain names
$regex = "/([a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9](?:\.[a-zA-Z]{2,})+)/i";
@ -177,7 +182,13 @@ try {
exitWithJson(["status" => "OK", "clean" => false, "filter" => "stopforumspam_domains", "hit" => $word, "message" => "Your message contains a domain ($d) that has been linked to recent spam. Message not sent."]);
}
}
foreach ($bannedpartialdomains as $word) {
if (str_contains($d, $word)) {
exitWithJson(["status" => "OK", "clean" => false, "filter" => "stopforumspam_domains_partial", "hit" => $word, "message" => "Your message contains a domain ($d) that has been linked to recent spam. Message not sent."]);
}
}
}
// do online searches only after we've checked the local lists
foreach ($domainlist as $d) {
// check online blacklists

13211
resources/net.contactspam/banneddomains.txt
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40515
resources/net.contactspam/bannedips.txt
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3
resources/net.contactspam/bannedwords.txt
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@ -86,3 +86,6 @@ potential long-term partnership
currently seeking companies
share your product offerings
whatsapp
virtual assistant
automated emails
dog harness

2322
resources/net.contactspam/matomoreferralspamdomains.txt Normal file
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3103
resources/net.contactspam/toxic_domains_partial.txt Normal file
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9470
resources/net.contactspam/toxic_domains_whole.txt
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2
resources/net.contactspam/toxic_ip_cidr.txt
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@ -15,6 +15,7 @@
174.76.30.70/32
176.227.192.0/19
178.159.37.0/24
185.177.72.0/24
188.143.232.0/23
188.143.234.0/24
193.201.224.0/24
@ -47,5 +48,6 @@
5.9.182.96/28
91.200.12.0/22
91.210.104.0/22
91.211.90.0/24
95.137.147.0/28
95.137.147.16/32

2
resources/net.contactspam/updatebannediplist.php
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@ -4,6 +4,8 @@ echo "Downloading...\n";
file_put_contents(__DIR__ . "/bannedips.zip", file_get_contents("https://www.stopforumspam.com/downloads/listed_ip_7_ipv46.zip"));
file_put_contents(__DIR__ . "/toxic_ip_cidr.txt", file_get_contents("https://www.stopforumspam.com/downloads/toxic_ip_cidr.txt"));
file_put_contents(__DIR__ . "/toxic_domains_whole.txt", file_get_contents("https://www.stopforumspam.com/downloads/toxic_domains_whole.txt"));
file_put_contents(__DIR__ . "/toxic_domains_partial.txt", file_get_contents("https://www.stopforumspam.com/downloads/toxic_domains_partial.txt"));
file_put_contents(__DIR__ . "/matomoreferralspamdomains.txt", file_get_contents("https://raw.githubusercontent.com/matomo-org/referrer-spam-list/refs/heads/master/spammers.txt"));
$zip = new ZipArchive;
$res = $zip->open(__DIR__ . "/bannedips.zip");