function testPost(ISblamPost $p)
{
$links = $p->getLinks();
if ($links === NULL) {
return NULL;
}
$linkcount = count($links);
$authorlink = $p->getAuthorURI() ? 1 : 0;
// count separately, because this link may be unrelated to post's contents, so shouldn't skew link/words ratio
if ($linkcount + $authorlink == 0) {
if (strlen($p->getText()) > 20) {
return array(-0.5, self::CERTAINITY_NORMAL, "No links");
}
return NULL;
// don't give nolinks bonus to posts with no content (no content is abnormal and it may be another way to spam)
}
if ($linkcount + $authorlink == 1) {
return array(0.1, self::CERTAINITY_LOW, "Single link");
}
if ($linkcount + $authorlink == 2) {
return array(0.2, self::CERTAINITY_LOW, "Two links");
}
$numwords = count(preg_split('![^a-z0-9\\x7F-\\xFF-]+|https?://[^\\]\\[\\s\'"<>]+!i', $p->getText(), 500, PREG_SPLIT_NO_EMPTY));
// long posts may legitimately have more links. can't set any limits, because wiki pages may contain lots of links.
$ratio = round($linkcount * 100 / (10 + $numwords));
if ($ratio > 22) {
return array(0.45, self::CERTAINITY_NORMAL, "Flooded with links (A{$ratio}: {$linkcount} per {$numwords} words)");
}
if ($ratio > 17) {
return array(0.35, self::CERTAINITY_NORMAL, "Flooded with links (B{$ratio}: {$linkcount} per {$numwords} words)");
}
if ($ratio > 12) {
return array(0.25, self::CERTAINITY_NORMAL, "Flooded with links (C{$ratio}: {$linkcount} per {$numwords} words)");
}
if ($ratio > 6) {
return array(0.25, self::CERTAINITY_NORMAL, "Lots of links (D{$ratio}: {$linkcount} per {$numwords} words)");
}
return array(0.25, self::CERTAINITY_LOW, "Some links (E{$ratio}: {$linkcount} per {$numwords} words)");
}
function testPost(ISblamPost $p)
{
if ($this->keywords === NULL) {
$this->importBlocklist2($this->blocklist);
}
if (!count($this->keywords)) {
return NULL;
}
$res1 = $this->testText($p->getText() . ' ' . $p->getAuthorName());
$res2 = 0;
$res3 = 0;
$alluris = '';
if ($uri = $p->getAuthorURI()) {
$alluris .= strtolower($uri);
}
if ($uri = $p->getAuthorEmail()) {
$alluris .= ' ' . strtolower($uri);
}
foreach ($p->getLinks() as $link) {
if ($label = $link->getLabel()) {
$res2 += count(array_intersect($this->getKeywordsFromText($label), $this->keywords));
}
if ($uri = $link->getURI()) {
$alluris .= ' ' . strtolower($uri);
}
}
$cnt = 0;
str_replace($this->keywords, $this->keywords, $alluris, $res3);
$sum = $res1 + $res2 + $res3;
if (!$sum) {
return NULL;
}
//array(-0.1,self::CERTAINITY_LOW, "No banned keywords");
$out = array();
if ($res1) {
$out[] = array(1.2 - 1 / $res1, $sum > 2 ? self::CERTAINITY_HIGH : self::CERTAINITY_NORMAL, "Banned keywords in text ({$res1})");
}
if ($res2) {
$out[] = array(1.2 - 1 / ($res2 + 1), self::CERTAINITY_HIGH, "Banned keywords in link labels ({$res2})");
}
if ($res3) {
$out[] = array(1.2 - 1 / $res3, $sum > 2 ? self::CERTAINITY_HIGH : self::CERTAINITY_NORMAL, "Banned keywords in URLs ({$res3})");
}
if (count($out)) {
return $out;
}
}
protected function extractWordsFromPost(ISblamPost $p)
{
// get both raw and stripped text, to find more phrases (word count doesn't matter)
$txt = $p->getRawContent() . ' ' . rawurldecode($p->getText()) . ' ' . $p->getAuthorName() . ' ' . $p->getAuthorEmail() . ' ' . $p->getAuthorURI();
return self::extractWords($txt, $this->db->ignore);
}
