function parseXover($subj, $from, $date, $messageid, $rsakeys)
{
$_CAT = 0;
$_FSIZE = 1;
// initialiseer wat variabelen
$spot = array();
// Eerst splitsen we de header string op in enkel de category info e.d.
$fromInfoPos = strpos($from, '<');
if ($fromInfoPos === false) {
return false;
} else {
# Haal de postername en de <>'s weg
$fromAddress = explode('@', substr($from, $fromInfoPos + 1, -1));
if (count($fromAddress) < 2) {
return false;
}
# if
$spot['header'] = $fromAddress[1];
}
# if
$spot['verified'] = false;
$spot['filesize'] = 0;
$spot['messageid'] = substr($messageid, 1, strlen($messageid) - 2);
# als de spot in de toekomst ligt, dan corrigeren we dat naar nu
if (time() < strtotime($date)) {
$spot['stamp'] = time();
} else {
$spot['stamp'] = strtotime($date);
}
# if
$fields = explode('.', $spot['header']);
if (count($fields) >= 6) {
$spot['filesize'] = $fields[$_FSIZE];
$spot['category'] = substr($fields[$_CAT], 0, 1) - 1.0;
// extract de posters name
$spot['poster'] = substr($from, 0, $fromInfoPos - 1);
// key id
$spot['keyid'] = (int) substr($fields[$_CAT], 1, 1);
if ($spot['keyid'] >= 0) {
$expression = '';
$strInput = substr($fields[$_CAT], 2);
$recentKey = $spot['keyid'] != 1;
if ($recentKey) {
if (strlen($strInput) == 0 || strlen($strInput) % 3 != 0) {
return;
}
# if
$subcatAr = $this->splitBySizEx($strInput, 3);
foreach ($subcatAr as $str) {
if (strlen($str) > 0) {
$expression .= strtolower(substr($str, 0, 1)) . (int) substr($str, 1) . '|';
}
# if
}
# foeeach
} else {
$list = array();
for ($i = 0; $i < strlen($strInput); $i++) {
if ($strInput[$i] == 0 && !is_numeric($strInput[$i]) && strlen($expression) > 0) {
$list[] = $expression;
$expression = '';
}
# if
$expression .= $strInput[$i];
}
# for
$list[] = $expression;
$expression = '';
foreach ($list as $str) {
$expression .= strtolower(substr($str, 0, 1)) . substr($str, 1) . '|';
}
# foreach
}
# else if $recentKey
# Break up the subcategories per subcat-type
if (strlen($expression) > 0) {
$subcats = explode('|', $expression);
$spot['subcata'] = '';
$spot['subcatb'] = '';
$spot['subcatc'] = '';
$spot['subcatd'] = '';
$spot['subcatz'] = '';
foreach ($subcats as $subcat) {
if (in_array(strtolower(substr($subcat, 0, 1)), array('a', 'b', 'c', 'd', 'z')) !== false) {
$spot['subcat' . strtolower(substr($subcat, 0, 1))] .= $subcat . '|';
}
# if
}
# foreach
# We vullen hier de z categorieen alvast op in het geval er geen Z category gegeven is
if (empty($spot['subcatz'])) {
$spot['subcatz'] = SpotCategories::createSubcatz($spot['category'], $spot['subcata'] . $spot['subcatb'] . $spot['subcatd']);
}
# if
}
# if
if (strpos($subj, '=?') !== false && strpos($subj, '?=') !== false) {
# Make sure its as simple as possible
$subj = str_replace('?= =?', '?==?', $subj);
$subj = str_replace('\\r', '', trim($this->oldEncodingParse($subj)));
$subj = str_replace('\\n', '', $subj);
}
# if
if ($recentKey) {
$tmp = explode('|', $subj);
$spot['title'] = trim($tmp[0]);
if (count($tmp) > 1) {
$spot['tag'] = trim($tmp[1]);
} else {
$spot['tag'] = '';
}
# else
} else {
$tmp = explode('|', $subj);
if (count($tmp) <= 1) {
$tmp = array($subj);
}
# if
$spot['tag'] = trim($tmp[count($tmp) - 1]);
# remove the tags from the array
array_pop($tmp);
array_pop($tmp);
$spot['title'] = trim(implode('|', $tmp));
if (strpos($spot['title'], chr(0xc2)) !== false | strpos($spot['title'], chr(0xc3)) !== false) {
$spot['title'] = trim($this->oldEncodingParse($spot['title']));
}
# if
}
# if recentKey
if (strlen($spot['title']) != 0 && strlen($spot['poster']) != 0) {
# Als er een recentkey is (key <> 1), OF de spot is na 2010 geplaatst, dan moet
# de spot gesigned zijn.
$mustbeSigned = $recentKey | $spot['stamp'] > 1293870080;
if ($mustbeSigned) {
$spot['headersign'] = $fields[count($fields) - 1];
if (strlen($spot['headersign']) != 0) {
$spot['wassigned'] = true;
# KeyID 7 betekent dat alleen een hashcash vereist is
if ($spot['keyid'] == 7) {
$userSignedHash = sha1('<' . $spot['messageid'] . '>', false);
$spot['verified'] = substr($userSignedHash, 0, 3) == '0000';
} else {
# the signature this header is signed with
$signature = $this->unspecialString($spot['headersign']);
$spotSigning = new SpotSigning();
$spot['verified'] = $spotSigning->verifySpotHeader($spot, $signature, $rsakeys);
}
# else
}
# if
} else {
$spot['verified'] = true;
$spot['wassigned'] = false;
}
# if doesnt need to be signed, pretend that it is
}
# if
}
# if
}
# if
# Nu zetten we de titel en dergelijke om naar utf8, we kunnen
# dat niet eerder doen omdat anders de RSA signature niet meer
# klopt.
if ($spot !== false && $spot['verified']) {
$spot['title'] = utf8_encode($spot['title']);
$spot['poster'] = utf8_encode($spot['poster']);
$spot['tag'] = utf8_encode($spot['tag']);
}
# f
return $spot;
}
function parseXover($subj, $from, $date, $messageid, $rsakeys, $use_openssl)
{
$_ID = 2;
$_CAT = 0;
// initialiseer wat variabelen
$spot = array();
// Eerst splitsen we de header string op in enkel de category info e.d.
$tmpHdr = preg_split('(<|>)', $from);
if (count($tmpHdr) < 2) {
return null;
}
# if
$tmpHdr = explode('@', $tmpHdr[1]);
if (count($tmpHdr) < 2) {
return false;
}
# if
$spot['header'] = $tmpHdr[1];
$spot['verified'] = false;
$spot['messageid'] = substr($messageid, 1, strlen($messageid) - 2);
if (time() < strtotime($date)) {
$spot['stamp'] = time();
} else {
$spot['stamp'] = strtotime($date);
}
# if
$fields = explode('.', $spot['header']);
if (count($fields) >= 6) {
$spot['id'] = $fields[$_ID];
if ($spot['id'] > 9) {
$spot['category'] = substr($fields[$_CAT], 0, 1) - 1.0;
// extract de posters name
$spot['poster'] = explode('<', $from);
$spot['poster'] = trim($spot['poster'][0]);
// key id
$spot['keyid'] = (int) substr($fields[$_CAT], 1, 1);
// groupname
$spot['groupname'] = 'free.pt';
if ($spot['keyid'] >= 1) {
$expression = '';
$strInput = substr($fields[$_CAT], 2);
$recentKey = $spot['keyid'] != 1;
if ($recentKey) {
if (strlen($strInput) == 0 || strlen($strInput) % 3 != 0) {
exit;
}
# if
$subcatAr = $this->splitBySizEx($strInput, 3);
foreach ($subcatAr as $str) {
if (strlen($str) > 0) {
$expression .= strtolower(substr($str, 0, 1)) . (int) substr($str, 1) . '|';
}
# if
}
# foeeach
$spot['subcat'] = (int) substr($subcatAr[0], 1);
} else {
$list = array();
for ($i = 0; $i < strlen($strInput); $i++) {
if ($strInput[$i] == 0 && !is_numeric($strInput[$i]) && strlen($expression) > 0) {
$list[] = $expression;
$expression = '';
}
# if
$expression .= $strInput[$i];
}
# for
$list[] = $expression;
$expression = '';
foreach ($list as $str) {
$expression .= strtolower(substr($str, 0, 1)) . substr($str, 1) . '|';
}
# foreach
$spot['subcat'] = (int) substr($list[0], 1);
}
# else if $recentKey
# Break up the subcategories per subcat-type
if (strlen($expression) > 0) {
$subcats = explode('|', $expression);
$spot['subcata'] = '';
$spot['subcatb'] = '';
$spot['subcatc'] = '';
$spot['subcatd'] = '';
foreach ($subcats as $subcat) {
if (array_search(strtolower(substr($subcat, 0, 1)), array('a', 'b', 'c', 'd')) !== false) {
$spot['subcat' . strtolower(substr($subcat, 0, 1))] .= $subcat . '|';
}
# if
}
# foreach
}
# if
if (strpos($subj, '=?') !== false && strpos($subj, '?=') !== false) {
# Make sure its as simple as possible
$subj = str_replace('?= =?', '?==?', $subj);
$subj = str_replace('\\r', '', trim($this->oldEncodingParse($subj)));
$subj = str_replace('\\n', '', $subj);
}
# if
if ($recentKey) {
if (strpos($subj, '|') !== false) {
$tmp = explode('|', $subj);
$spot['title'] = trim($tmp[0]);
$spot['tag'] = trim($tmp[1]);
} else {
$spot['title'] = trim($subj);
$spot['tag'] = '';
}
# else
} else {
$tmp = explode('|', $subj);
if (count($tmp) <= 1) {
$tmp = array($subj);
}
# if
$spot['tag'] = trim($tmp[count($tmp) - 1]);
# remove the tags from the array
array_pop($tmp);
array_pop($tmp);
$spot['title'] = trim(implode('|', $tmp));
if (strpos($spot['title'], chr(0xc2)) !== false | strpos($spot['title'], chr(0xc3)) !== false) {
$spot['title'] = trim($this->oldEncodingParse($spot['title']));
}
# if
}
# if recentKey
if (strlen($spot['title']) != 0 && strlen($spot['poster']) != 0 && ($spot['id'] >= 1000000 || $recentKey)) {
# Vanaf spot-id 1385910 komen we KeyID's 2 tegen, dus vanaf daar gaan we alle niet-signed posts weigeren.
$mustbeSigned = $recentKey | !$recentKey & $spot['id'] > 1385910;
# FIXME
#
# somehow there is a check that the key is only validated for spots with key id 2 ?
# not sure about the code as it only seems to execute for more than 25000 spots or something?
#
$mustbeSigned = $mustbeSigned & $spot['keyid'] >= 2;
# and verify the signature it
if ($mustbeSigned) {
$spot['headersign'] = $fields[count($fields) - 1];
if (strlen($spot['headersign']) != 0) {
$spot['wassigned'] = true;
# KeyID 7 betekent dat het serverless signed is
if ($spot['keyid'] == 7) {
$userSignedHash = sha1('<' . $spot['messageid'] . '>', false);
$spot['verified'] = substr($userSignedHash, 0, 3) == '0000';
} else {
# the signature this header is signed with
$signature = $this->unspecialString($spot['headersign']);
$spotSigning = new SpotSigning($use_openssl);
$spot['verified'] = $spotSigning->verifySpotHeader($spot, $signature, $rsakeys);
}
# else
}
# if
} else {
$spot['verified'] = true;
$spot['wassigned'] = false;
}
# if doesnt need to be signed, pretend that it is
}
# if
}
# if
}
# if
}
# if
return $spot;
}
