HTML tag
+ //'uri_bbcode' => $t_area, // URI inside [url] or [link] BBCode
);
-
- // Remove unused
- foreach (array_keys($method) as $key) {
- if ($method[$key] < 0) unset($method[$key]);
+ if ($rule) {
+ $bool = array(
+ // Rules
+ //'asap' => TRUE, // Quit or return As Soon As Possible
+ 'uniqhost' => TRUE, // Show uniq host (at block notification mail)
+ 'badhost' => TRUE, // Check badhost
+ );
+ } else {
+ $bool = array();
}
- foreach (array_keys($area) as $key) {
- if ($area[$key] < 0) unset($area[$key]);
+
+ // Remove non-$positive values
+ foreach (array_keys($positive) as $key) {
+ if ($positive[$key] < 0) unset($positive[$key]);
}
- $area = empty($area) ? array() : array('area' => $area);
- $rules = $rule ? $rules : array();
- return $method + $area + $rules;
+ return $positive + $bool;
}
// Simple/fast spam check
function check_uri_spam($target = '', $method = array())
{
+ // Return value
+ $progress = array(
+ 'method' => array(
+ // Theme to do => Dummy, optional value, or optional array()
+ //'quantity' => 8,
+ //'uniqhost' => TRUE,
+ //'non_uniqhost'=> 3,
+ //'non_uniquri' => 3,
+ //'badhost' => TRUE,
+ //'area_anchor' => 0,
+ //'area_bbcode' => 0,
+ //'uri_anchor' => 0,
+ //'uri_bbcode' => 0,
+ ),
+ 'sum' => array(
+ // Theme => Volume found (int)
+ ),
+ 'is_spam' => array(
+ // Flag. If someting defined here,
+ // one or more spam will be included
+ // in this report
+ ),
+ 'blocked' => array(
+ // Hosts blocked
+ //'category' => array(
+ // 'host',
+ //)
+ ),
+ 'hosts' => array(
+ // Hosts not blocked
+ ),
+ );
+
+ // Aliases
+ $sum = & $progress['sum'];
+ $is_spam = & $progress['is_spam'];
+ $progress['method'] = & $method; // Argument
+ $blocked = & $progress['blocked'];
+ $hosts = & $progress['hosts'];
+ $asap = isset($method['asap']);
+
+ // Init
if (! is_array($method) || empty($method)) {
$method = check_uri_spam_method();
}
-
- $asap = isset($method['asap']) ? $method['asap'] : TRUE;
- $sum = array(
- 'quantity' => 0,
- 'uniqhost' => 0,
- 'non_uniq' => 0,
- 'badhost' => 0,
- 'area_total' => 0,
- 'area_anchor' => 0,
- 'area_bbcode' => 0,
- );
- $is_spam = array();
- $progress = array(
- 'sum' => & $sum,
- 'is_spam' => & $is_spam,
- 'method' => & $method,
- );
+ foreach(array_keys($method) as $key) {
+ if (! isset($sum[$key])) $sum[$key] = 0;
+ }
if (is_array($target)) {
- // Recurse
foreach($target as $str) {
- $_progress = check_uri_spam($str, $method);
- foreach (array_keys($_progress['sum']) as $key) {
- $sum[$key] += $_progress['sum'][$key];
+ if (! is_string($str)) continue;
+
+ $_progress = check_uri_spam($str, $method); // Recurse
+
+ // Merge $sum
+ $_sum = & $_progress['sum'];
+ foreach (array_keys($_sum) as $key) {
+ if (! isset($sum[$key])) {
+ $sum[$key] = & $_sum[$key];
+ } else {
+ $sum[$key] += $_sum[$key];
+ }
}
- foreach(array_keys($_progress['is_spam']) as $key) {
+
+ // Merge $is_spam
+ $_is_spam = & $_progress['is_spam'];
+ foreach (array_keys($_is_spam) as $key) {
$is_spam[$key] = TRUE;
+ if ($asap) break;
}
if ($asap && $is_spam) break;
+
+ // Merge only
+ $blocked = array_merge_leaves($blocked, $_progress['blocked'], FALSE, FALSE);
+ $hosts = array_merge_leaves($hosts, $_progress['hosts'], FALSE, FALSE);
}
- } else {
- $pickups = spam_uri_pickup($target);
- if (! empty($pickups)) {
- $sum['quantity'] += count($pickups);
-
- // URI quantity
- if ((! $asap || ! $is_spam) && isset($method['quantity']) &&
- $sum['quantity'] > $method['quantity']) {
- $is_spam['quantity'] = TRUE;
+
+ // Unique values
+ $blocked = array_unique_recursive($blocked);
+ $hosts = array_unique_recursive($hosts);
+
+ // Renumber numeric keys
+ array_renumber_numeric_keys($blocked);
+ array_renumber_numeric_keys($hosts);
+
+ // Recount $sum['badhost']
+ $sum['badhost'] = array_count_leaves($blocked);
+
+ return $progress;
+ }
+
+ // Area: There's HTML anchor tag
+ if ((! $asap || ! $is_spam) && isset($method['area_anchor'])) {
+ $key = 'area_anchor';
+ $_asap = isset($method['asap']) ? array('asap' => TRUE) : array();
+ $result = area_pickup($target, array($key => TRUE) + $_asap);
+ if ($result) {
+ $sum[$key] = $result[$key];
+ if (isset($method[$key]) && $sum[$key] > $method[$key]) {
+ $is_spam[$key] = TRUE;
}
- //var_dump($method['quantity'], $is_spam);
-
- // Using invalid area
- if ((! $asap || ! $is_spam) && isset($method['area'])) {
- foreach($pickups as $pickup) {
- foreach ($pickup['area'] as $key => $value) {
- if ($key == 'offset') continue;
- // Total
- $sum['area_total'] += $value;
- if (isset($method['area']['total']) &&
- $sum['area_total'] > $method['area']['total']) {
- $is_spam['area_total'] = TRUE;
- if ($asap && $is_spam) break;
- }
- // Each area
- $p_key = 'area_' . $key;
- $sum[$p_key] += $value;
- if(isset($method['area'][$key]) &&
- $sum[$p_key] > $method['area'][$key]) {
- $is_spam[$p_key] = TRUE;
- if ($asap && $is_spam) break;
- }
- }
+ }
+ }
+
+ // Area: There's 'BBCode' linking tag
+ if ((! $asap || ! $is_spam) && isset($method['area_bbcode'])) {
+ $key = 'area_bbcode';
+ $_asap = isset($method['asap']) ? array('asap' => TRUE) : array();
+ $result = area_pickup($target, array($key => TRUE) + $_asap);
+ if ($result) {
+ $sum[$key] = $result[$key];
+ if (isset($method[$key]) && $sum[$key] > $method[$key]) {
+ $is_spam[$key] = TRUE;
+ }
+ }
+ }
+
+ // Return if ...
+ if ($asap && $is_spam) return $progress;
+
+ // URI: Pickup
+ $pickups = uri_pickup_normalize(spam_uri_pickup($target, $method));
+
+ // Return if ...
+ if (empty($pickups)) return $progress;
+
+ // URI: Check quantity
+ $sum['quantity'] += count($pickups);
+ // URI quantity
+ if ((! $asap || ! $is_spam) && isset($method['quantity']) &&
+ $sum['quantity'] > $method['quantity']) {
+ $is_spam['quantity'] = TRUE;
+ }
+
+ // URI: used inside HTML anchor tag pair
+ if ((! $asap || ! $is_spam) && isset($method['uri_anchor'])) {
+ $key = 'uri_anchor';
+ foreach($pickups as $pickup) {
+ if (isset($pickup['area'][$key])) {
+ $sum[$key] += $pickup['area'][$key];
+ if(isset($method[$key]) &&
+ $sum[$key] > $method[$key]) {
+ $is_spam[$key] = TRUE;
if ($asap && $is_spam) break;
}
+ if ($asap && $is_spam) break;
}
- //var_dump($method['area'], $is_spam);
-
- // URI uniqueness (and removing non-uniques)
- if ((! $asap || ! $is_spam) && isset($method['non_uniq'])) {
-
- // Destructive normalize of URIs
- uri_array_normalize($pickups);
-
- $uris = array();
- foreach (array_keys($pickups) as $key) {
- $uris[$key] = uri_array_implode($pickups[$key]);
- }
- $count = count($uris);
- $uris = array_unique($uris);
- $sum['non_uniq'] += $count - count($uris);
- if ($sum['non_uniq'] > $method['non_uniq']) {
- $is_spam['non_uniq'] = TRUE;
- }
- if (! $asap || ! $is_spam) {
- foreach (array_diff(array_keys($pickups),
- array_keys($uris)) as $remove) {
- unset($pickups[$remove]);
- }
+ }
+ }
+
+ // URI: used inside 'BBCode' pair
+ if ((! $asap || ! $is_spam) && isset($method['uri_bbcode'])) {
+ $key = 'uri_bbcode';
+ foreach($pickups as $pickup) {
+ if (isset($pickup['area'][$key])) {
+ $sum[$key] += $pickup['area'][$key];
+ if(isset($method[$key]) &&
+ $sum[$key] > $method[$key]) {
+ $is_spam[$key] = TRUE;
+ if ($asap && $is_spam) break;
}
- unset($uris);
+ if ($asap && $is_spam) break;
}
- //var_dump($method['non_uniq'], $is_spam);
-
- // Unique host
- $hosts = array();
- foreach ($pickups as $pickup) $hosts[] = & $pickup['host'];
- $hosts = array_unique($hosts);
- $sum['uniqhost'] += count($hosts);
- //var_dump($method['uniqhost'], $is_spam);
-
- // Bad host
- if ((! $asap || ! $is_spam) && isset($method['badhost'])) {
- $count = array_count_leaves(is_badhost($hosts, $asap));
- $sum['badhost'] += $count;
- if ($count != 0) $is_spam['badhost'] = TRUE;
+ }
+ }
+
+ // URI: Uniqueness (and removing non-uniques)
+ if ((! $asap || ! $is_spam) && isset($method['non_uniquri'])) {
+
+ $uris = array();
+ foreach (array_keys($pickups) as $key) {
+ $uris[$key] = uri_pickup_implode($pickups[$key]);
+ }
+ $count = count($uris);
+ $uris = array_unique($uris);
+ $sum['non_uniquri'] += $count - count($uris);
+ if ($sum['non_uniquri'] > $method['non_uniquri']) {
+ $is_spam['non_uniquri'] = TRUE;
+ }
+ if (! $asap || ! $is_spam) {
+ foreach (array_diff(array_keys($pickups),
+ array_keys($uris)) as $remove) {
+ unset($pickups[$remove]);
}
- //var_dump($method['badhost'], $is_spam);
+ }
+ unset($uris);
+ }
+
+ // Return if ...
+ if ($asap && $is_spam) return $progress;
+
+ // Host: Uniqueness (uniq / non-uniq)
+ foreach ($pickups as $pickup) $hosts[] = & $pickup['host'];
+ $hosts = array_unique($hosts);
+ $sum['uniqhost'] += count($hosts);
+ if ((! $asap || ! $is_spam) && isset($method['non_uniqhost'])) {
+ $sum['non_uniqhost'] = $sum['quantity'] - $sum['uniqhost'];
+ if ($sum['non_uniqhost'] > $method['non_uniqhost']) {
+ $is_spam['non_uniqhost'] = TRUE;
}
}
+ // Return if ...
+ if ($asap && $is_spam) return $progress;
+
+ // URI: Bad host (Separate good/bad hosts from $hosts)
+ if ((! $asap || ! $is_spam) && isset($method['badhost'])) {
+
+ // is_badhost()
+ $list = get_blocklist('list');
+ $blocked = blocklist_distiller($hosts, array_keys($list), $asap);
+ foreach($list as $key=>$type){
+ if (! $type) unset($blocked[$key]); // Ignore goodhost etc
+ }
+ unset($list);
+
+ if (! empty($blocked)) $is_spam['badhost'] = TRUE;
+ }
+
return $progress;
}
-// Count leaves
-function array_count_leaves($array = array(), $count_empty_array = FALSE)
+// Count leaves (A leaf = value that is not an array, or an empty array)
+function array_count_leaves($array = array(), $count_empty = FALSE)
{
- if (! is_array($array) || (empty($array) && $count_empty_array))
- return 1;
+ if (! is_array($array) || (empty($array) && $count_empty)) return 1;
// Recurse
- $result = 0;
+ $count = 0;
foreach ($array as $part) {
- $result += array_count_leaves($part, $count_empty_array);
+ $count += array_count_leaves($part, $count_empty);
}
- return $result;
+ return $count;
+}
+
+// Merge two leaves' value
+function array_merge_leaves(& $array1, & $array2, $unique_values = TRUE, $renumber_numeric = TRUE)
+{
+ $array = array_merge_recursive($array1, $array2);
+
+ // Redundant values (and keys) are vanished
+ if ($unique_values) $array = array_unique_recursive($array);
+
+ // All NUMERIC keys are always renumbered from 0
+ if ($renumber_numeric) array_renumber_numeric_keys($array);
+
+ return $array;
+}
+
+// Shrink array('key' => array('key')) to array('key') (Not used now)
+function array_shrink_leaves(& $array)
+{
+ if (! is_array($array)) return $array;
+
+ foreach($array as $key => $value){
+ // Recurse. Removing more leaves beforehand
+ if (is_array($value)) array_shrink_leaves($array[$key]);
+ }
+
+ $tmp = array();
+ foreach($array as $key => $value){
+ if (is_array($value)) {
+ $count = count($value);
+ if ($count == 1 && current($value) == $key) {
+ unset($array[$key]);
+ $array[] = $key;
+ }
+ }
+ }
+
+ return $array;
+}
+
+// array-leave to flat array() (with unique)
+function array_flat_leaves($array)
+{
+ //var_dump($array);
+ if (! is_array($array)) return $array;
+
+ $tmp = array();
+ foreach($array as $key => $value) {
+ if (is_array($value)) {
+ foreach(array_flat_leaves($value) as $_value) {
+ $tmp[$_value] = TRUE;
+ }
+ } else {
+ $tmp[$value] = TRUE;
+ }
+ }
+
+ return array_keys($tmp);
}
// ---------------------
@@ -849,20 +1445,16 @@ function array_count_leaves($array = array(), $count_empty_array = FALSE)
// Summarize $progress (blocked only)
function summarize_spam_progress($progress = array(), $blockedonly = FALSE)
{
- $method = $progress['method'];
- if (isset($method['area'])) {
- foreach(array_keys($method['area']) as $key) {
- $method['area_' . $key] = TRUE;
- }
- }
-
if ($blockedonly) {
$tmp = array_keys($progress['is_spam']);
} else {
$tmp = array();
- foreach ($progress['sum'] as $key => $value) {
- if (isset($method[$key])) {
- $tmp[] = $key . '(' . $value . ')';
+ $method = & $progress['method'];
+ if (isset($progress['sum'])) {
+ foreach ($progress['sum'] as $key => $value) {
+ if (isset($method[$key]) && $value) {
+ $tmp[] = $key . '(' . $value . ')';
+ }
}
}
}
@@ -870,14 +1462,60 @@ function summarize_spam_progress($progress = array(), $blockedonly = FALSE)
return implode(', ', $tmp);
}
+function summarize_detail_badhost($progress = array())
+{
+ if (! isset($progress['blocked']) || empty($progress['blocked'])) return '';
+
+ $blocked = array();
+ foreach($progress['blocked'] as $list => $lvalue) {
+ foreach($lvalue as $group => $gvalue) {
+ $flat = implode(', ', array_flat_leaves($gvalue));
+ if ($flat == $group) {
+ $blocked[$list][] = $flat;
+ } else {
+ $blocked[$list][$group] = $flat;
+ }
+ }
+ }
+
+ return var_export_shrink($blocked, TRUE, TRUE);
+}
+
+function summarize_detail_newtral($progress = array())
+{
+ if (! isset($progress['hosts']) ||
+ ! is_array($progress['hosts']) ||
+ empty($progress['hosts'])) return '';
+
+ // Sort by domain
+ $tmp = array();
+ foreach($progress['hosts'] as $value) {
+ $tmp[delimiter_reverse($value)] = $value;
+ }
+ ksort($tmp);
+
+ return count($tmp) . ' (' .implode(', ', $tmp) . ')';
+}
+
+
// ---------------------
// Exit
// Common bahavior for blocking
// NOTE: Call this function from various blocking feature, to disgueise the reason 'why blocked'
-function spam_exit()
+function spam_exit($mode = '', $data = array())
{
- die("\n");
+ switch ($mode) {
+ case '': echo("\n"); break;
+ case 'dump':
+ echo('' . "\n");
+ echo htmlspecialchars(var_export($data, TRUE));
+ echo('
' . "\n");
+ break;
+ };
+
+ // Force exit
+ exit;
}
@@ -886,17 +1524,16 @@ function spam_exit()
// TODO: Record them
// Simple/fast spam filter ($target: 'a string' or an array())
-function pkwk_spamfilter($action, $page, $target = array('title' => ''), $method = array())
+function pkwk_spamfilter($action, $page, $target = array('title' => ''), $method = array(), $exitmode = '')
{
- global $notify;
-
$progress = check_uri_spam($target, $method);
if (! empty($progress['is_spam'])) {
// Mail to administrator(s)
- if ($notify) pkwk_spamnotify($action, $page, $target, $progress, $method);
- // End
- spam_exit();
+ pkwk_spamnotify($action, $page, $target, $progress, $method);
+
+ // Exit
+ spam_exit($exitmode, $progress);
}
}
@@ -906,21 +1543,29 @@ function pkwk_spamfilter($action, $page, $target = array('title' => ''), $method
// Mail to administrator(s)
function pkwk_spamnotify($action, $page, $target = array('title' => ''), $progress = array(), $method = array())
{
- global $notify_subject;
+ global $notify, $notify_subject;
- $asap = isset($method['asap']) ? $method['asap'] : TRUE;
+ if (! $notify) return;
- $footer['ACTION'] = 'Blocked by: ' . summarize_spam_progress($progress, TRUE);
+ $asap = isset($method['asap']);
+ $summary['ACTION'] = 'Blocked by: ' . summarize_spam_progress($progress, TRUE);
if (! $asap) {
- $footer['METRICS'] = summarize_spam_progress($progress);
- }
- $footer['COMMENT'] = $action;
- $footer['PAGE'] = '[blocked] ' . $page;
- $footer['URI'] = get_script_uri() . '?' . rawurlencode($page);
- $footer['USER_AGENT'] = TRUE;
- $footer['REMOTE_ADDR'] = TRUE;
- pkwk_mail_notify($notify_subject, var_export($target, TRUE), $footer);
+ $summary['METRICS'] = summarize_spam_progress($progress);
+ }
+
+ $tmp = summarize_detail_badhost($progress);
+ if ($tmp != '') $summary['DETAIL_BADHOST'] = $tmp;
+
+ $tmp = summarize_detail_newtral($progress);
+ if (! $asap && $tmp != '') $summary['DETAIL_NEUTRAL_HOST'] = $tmp;
+
+ $summary['COMMENT'] = $action;
+ $summary['PAGE'] = '[blocked] ' . (is_pagename($page) ? $page : '');
+ $summary['URI'] = get_script_uri() . '?' . rawurlencode($page);
+ $summary['USER_AGENT'] = TRUE;
+ $summary['REMOTE_ADDR'] = TRUE;
+ pkwk_mail_notify($notify_subject, var_export($target, TRUE), $summary, TRUE);
}
?>