#!/usr/bin/php
<?php

/*
 * First, configure this file, and nocempost.sh to match
 * your system and needs.
 *
 * Copy messages to add to NoCeM list to $workpath/incoming
 * One message per file. (Move or delete these files when all
 * is complete)
 *
 * Then run nocemlist.php to create nocem.out and header.out files
 * You may view these files before sending if you wish to confirm
 * all is working properly.
 *
 * Then run nocempost.sh to send NoCeM message to news server
*/

// Where these scripts reside and messages are created: (end with '/')
$workpath = "/home/user/SPAM/";

$domain = "<your_domain>";
$organization = "<your_organization>";
$from = "from_address <from@example.com>";
$from_email = "<from@example.com";
$contact = "your_email_address";

// Your gpg signing key:
$signing_key = "XXXX XXXX XXXX XXXX XXXX  XXXX XXXX XXXX XXXX XXXX";
// URL to view/download key:
$key_location = "https://<key_url>";

// Comma separated list of newsgroups to send this message:
$spamgroup = "<where to send this message>";
// Statement about the scope of your NoCeM messages:
$scope = "The scope of these messages is the <my_hier>.* hierarchy";

/* END CONFIG */

$spamdir = $workpath."incoming";
$nocem = $workpath."nocem.out";
$headerdat = $workpath."header.out";
$localeol = PHP_EOL.PHP_EOL;

$newspam = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($spamdir));
$count = 0;
$nocem_list = array();
$nocem_head = array();

foreach($newspam as $spam) {
    if(is_dir($spam)) { 
	continue;
    }
    $articledata = file_get_contents($spam);
    $bodystart = strpos($articledata, $localeol);
    $header = substr($articledata, 0, $bodystart);

    preg_match('/Message-ID:.*/i', $header, $result);
    $id = explode(": ", $result[0]);

    preg_match('/Newsgroups:.*/', $header, $result);
    $newsgroups = explode("Newsgroups: ", $result[0]);
    $newsgroups = preg_replace('/,/', ' ', $newsgroups);

    preg_match('/From:.*/', $header, $result);
    $sender = explode("From: ", $result[0]);

    preg_match('/Date:.*/', $header, $result);
    $date = explode("Date: ", $result[0]);

    preg_match('/Subject:.*/', $header, $result);
    $subject = explode("Subject: ", $result[0]);

    $nocem_list[] = "#    Sender: ".$sender[1]."\n#    Date: ".$date[1]."\n#    Subject: ".$subject[1]."\n".$id[1]." ".$newsgroups[1]."\n";;
    $count++;
}
$nocem_file = fopen($nocem, "w+");
$header_file = fopen($headerdat, "w+");

$hashtail = hash('crc32', $domain.$organization.$from);
$thishash = hash('crc32', serialize($nocem_list)).$hashtail;

if($count < 2) {
  $article = "article";
} else {
  $article = "articles";
}

fwrite($header_file, "Message-ID: <$thishash@$domain>\n");
fwrite($header_file, "From: $from\n");
fwrite($header_file, "Newsgroups: $spamgroup\n");
fwrite($header_file, "Subject: @@NCM NoCeM notice $thishash spam/hide ($count $article)\n");
fwrite($header_file, "Content-Type: text/plain; charset=utf-8; format=flowed\n");
fwrite($header_file, "Content-Transfer-Encoding: 8bit\n");
fwrite($header_file, "Organization: $organization\n");
fclose($header_file);

fwrite($nocem_file, "You may use this for hiding articles using NoCeM.\n");
fwrite($nocem_file, "$scope.\n");
fwrite($nocem_file, "This list is generated by $from_email.\n\n");

fwrite($nocem_file, "This message was signed using the following key:\n");
fwrite($nocem_file, "$signing_key\n\n");

fwrite($nocem_file, "The GPG key needed to verify the signature of cancels\n");
fwrite($nocem_file, "issued by $from_email is available at:\n");
fwrite($nocem_file, "$key_location\n\n");

fwrite($nocem_file, "For information contact $contact.\n\n");

fwrite($nocem_file, "@@BEGIN NCM HEADERS\n");
fwrite($nocem_file, "Version: 0.93\n");
fwrite($nocem_file, "Issuer: $from_email\n");
fwrite($nocem_file, "Type: spam\n");
fwrite($nocem_file, "Action: hide\n");
fwrite($nocem_file, "Count: ".$count."\n");
fwrite($nocem_file, "Notice-ID: ".$thishash."\n");

fwrite($nocem_file, "@@BEGIN NCM BODY\n");

foreach($nocem_list as $list) {
    fwrite($nocem_file, $list);
} 

fwrite($nocem_file, "@@END NCM BODY");
fclose($nocem_file);
?>