function wikipedia_search($procd_descr)
{
profiling_start('wikipedia_search');
$TERMS = wikipedia_process_term($procd_descr);
$url = wikipedia_url($TERMS);
$data = cached_file_get_contents($url);
Error::setPrepend($data);
Error::generate('debug', 'WIKIPEDIA');
eval('$arr = ' . $data . ';');
foreach ($arr['query']['pages'] as $k => $v) {
$title = urlencode($v['title']);
$url = urlencode($v['fullurl']);
// https://dgl.cx/2008/10/wikipedia-summary-dns
if ($k == -1) {
// not found
return array();
}
break;
}
// this is probably a topic from a random unintended field like "frequency analysis (cryptoanalysis)"
if (strlen($title) < strlen($TERMS) - 5 || strlen($title) > strlen($TERMS) + 5 || strrchr($title, '%28')) {
return array();
}
$store = array('title' => urldecode(str_replace('+', ' ', $title)), 'link' => urldecode($url), 'source' => 'wikipedia');
profiling_end('wikipedia_search');
return array($store);
}
function google_search($procd_descr)
{
profiling_start('google_search');
$TERMS = urlencode($procd_descr . " Lecture Notes");
$USERIP = $_SERVER['REMOTE_ADDR'];
$url = "http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q={$TERMS}&rsz=small";
$data = cached_file_get_contents($url);
$arr = json_decode($data, true);
$results = $arr['responseData']['results'];
$store = array();
foreach ($results as $elem) {
$link = $elem['url'];
$title = $elem['titleNoFormatting'];
array_push($store, array('title' => $title, 'link' => $link, 'source' => 'google'));
}
profiling_end('google_search');
return $store;
}
function khanacad_search($procd_descr, $tags = array())
{
global $CONFIG;
global $ROOT;
profiling_start('khanacad_search');
$TERMS = urlencode($procd_descr);
$URL = "{$ROOT}/scraping/khan.xml";
$data = file_get_contents($URL);
$parser = xml_parser_create();
$status = xml_parse_into_struct($parser, $data, $xml);
if ($status == 0) {
echo xml_error_string(xml_get_error_code($parser));
}
xml_parser_free($parser);
$terms = preg_split("/\\s+|\\+/", $TERMS, null, PREG_SPLIT_NO_EMPTY);
$ret = search_with_tags($terms, $tags, 'khanacad_query', $xml);
profiling_end('khanacad_search');
return $ret;
}
function itunesu_search($procd_descr)
{
$TERMS = urlencode($procd_descr);
$USERIP = $_SERVER['REMOTE_ADDR'];
$NRESULTS = 4;
profiling_start('itunesu_search');
ini_set('user_agent', 'iTunes/8.1');
$url = "http://ax.search.itunes.apple.com/WebObjects/MZSearch.woa/wa/advancedSearch?descriptionTerm={$TERMS}&media=iTunesU";
$data = cached_file_get_contents($url);
$parser = xml_parser_create();
xml_parse_into_struct($parser, $data, $xml);
xml_parser_free($parser);
$store = array();
foreach ($xml as $key => $elem) {
if ($elem['tag'] == 'GOTOURL' && $elem['level'] == 21 && $elem['type'] == 'open' && count($store) < $NRESULTS) {
array_push($store, array('source' => 'itunesu', 'url' => $elem['attributes']['URL'], 'title' => $elem['attributes']['DRAGGINGNAME'], 'art' => $xml[$key + 2]['attributes']['URL']));
}
}
profiling_end('itunesu_search');
return $store;
}
}
} else {
if (isset($_GET['action']) && $_GET['action'] != "") {
// Action with no params
$action = $_GET['action'];
switch ($action) {
case 'list':
$args['filelist'] = File::ListAll();
include "views/{$action}.view.php";
break;
case 'show':
Error::generate('notice', 'Invalid file ID', Error::$FLAGS['single']);
header("Location: {$PAGE_REL_URL}");
break;
default:
Error::generate('suspicious', "Invalid action {$action} in /file/");
header("Location: {$PAGE_REL_URL}");
}
} else {
include "views/index.view.php";
}
}
}
db_close();
profiling_end('all');
profiling_print_summary();
Error::showSeparator();
Error::setBgColour('#B66');
Error::generate('debug', "Finished rendering {$_SERVER['REQUEST_URI']} normally");
Error::setBgColour('#555');
Error::showSeparator();
function youtube_query($TERMS, $srch, $crs)
{
global $CONFIG;
profiling_start('youtube_query');
$TAGS = $srch;
$rtags = get_full_tags($crs);
$str = urlencode($TERMS);
//."+".implode("+", $srch);
$url = "http://gdata.youtube.com/feeds/api/videos?q={$str}&orderby=relevance&start-index=1&max-results=2&v=2&format=5";
$data = cached_file_get_contents($url);
$parser = xml_parser_create();
xml_parse_into_struct($parser, $data, $xml);
xml_parser_free($parser);
$store = array();
foreach ($xml as $elem) {
switch ($elem['tag']) {
case 'MEDIA:THUMBNAIL':
$content['thumbnail_url'] = $elem['attributes']['URL'];
$content['thumbnail_width'] = $elem['attributes']['WIDTH'];
$content['thumbnail_height'] = $elem['attributes']['HEIGHT'];
break;
case 'MEDIA:PLAYER':
$content['link'] = $elem['attributes']['URL'];
break;
case 'CONTENT':
if ($elem['attributes']['TYPE'] == 'application/x-shockwave-flash') {
$val = $elem['attributes']['SRC'];
} else {
continue 2;
}
$content['src'] = $val;
break;
case 'MEDIA:CATEGORY':
if ($val != 'Howto' && $val != 'Education' && $val != 'News' && $val != 'Tech') {
continue 2;
} else {
if ($val == 'Education') {
$content['rating'] += 5;
}
}
$val = $elem['value'];
$content[strtolower($elem['tag'])] = $val;
break;
case 'CATEGORY':
if ($elem['attributes']['SCHEME'] != 'http://gdata.youtube.com/schemas/2007/categories.cat') {
continue 2;
} else {
$val = $elem['attributes']['TERM'];
if ($val != 'Howto' && $val != 'Education' && $val != 'News' && $val != 'Tech') {
continue 2;
} else {
if ($val == 'Education') {
$content['rating'] += 5;
}
}
$content[strtolower($elem['tag'])] = $val;
}
break;
case 'MEDIA:KEYWORDS':
$val = $elem['value'];
if (!$val) {
continue 2;
}
if ($rtags) {
$matches = count_matches(explode(', ', $val), explode(',', $rtags));
} else {
$matches = false;
}
if ($matches > 0) {
$content[strtolower($elem['tag'])] = $val;
$content['rating'] += 5;
} else {
$content['rating'] -= 5;
continue 2;
}
break;
case 'MEDIA:DESCRIPTION':
// YT:RATING : attributes : NUMDISLIKES, NUMLIKES
$val = $elem['value'];
if ($rtags) {
$matches = count_matches(explode(' ', $val), explode(',', $rtags));
} else {
$matches = false;
}
if ($matches && $matches > 0) {
$content[strtolower($elem['tag'])] = $val;
$content['rating'] += 2;
} else {
$content['rating'] -= 2;
continue 2;
}
break;
case 'TITLE':
$val = $elem['value'];
$content[strtolower($elem['tag'])] = $val;
break;
case 'ENTRY':
if ($elem['type'] == 'open') {
$content = array('src' => false, 'title' => false, 'media:keywords' => false, 'media:description' => false, 'category' => false, 'rating' => 10, 'thumbnail_url' => false, 'thumbnail_width' => false, 'thumbnail_height' => false, 'link' => false, 'source' => 'youtube');
} else {
if ($elem['type'] == 'close') {
if ($content['rating'] > 8) {
if ($CONFIG['debug']) {
$content['title'] .= ' - rating=' . $content['rating'];
}
array_push($store, $content);
}
}
}
default:
}
}
profiling_end('youtube_query');
return $store;
}
public static function generate($priority, $error, $flags = 'none')
{
global $CONFIG;
global $ROOT;
profiling_start('error::generate');
$class = '';
if (!self::$logging_enabled) {
goto end;
}
//$class .= 'hidden';
if (is_string($priority)) {
$priority = self::$PRIORITY[$priority];
}
if ($CONFIG['debug'] === false && $priority == self::$PRIORITY['debug']) {
goto end;
}
if (session_id() != "" && isset($_SESSION['errors'])) {
self::$errors = $_SESSION['errors'];
}
if ($flags & self::$FLAGS['single'] && count(self::$errors) > 0) {
goto end;
}
if ($flags & self::$FLAGS['override'] && count(self::$errors) > 0) {
self::$errors = array();
}
// format string
$pname = 'notice';
foreach (self::$PRIORITY as $k => $v) {
if ($v == $priority) {
$pname = $k;
break;
}
}
$bgcolour = self::$bgcolour;
$fmt = "<div class=\"{$pname} {$class}\" style=\"background-color: {$bgcolour}\">%s</div>\r\n";
// log it
$fp = fopen($ROOT . '/admin/debug.html', 'a');
static::_output($fp, $fmt, $priority, $error);
fclose($fp);
// behaviour on error
switch ($priority) {
case self::$PRIORITY['fatal']:
die($error);
break;
case self::$PRIORITY['warn']:
case self::$PRIORITY['notice']:
case self::$PRIORITY['success']:
array_push(self::$errors, array('priority' => $priority, 'msg' => $error));
break;
case self::$PRIORITY['prod_debug']:
case self::$PRIORITY['suspicious']:
$fp = fopen($ROOT . '/admin/debug_special.html', 'a');
static::_output($fp, $fmt, $priority, $error);
fclose($fp);
break;
case self::$PRIORITY['debug']:
break;
}
if (session_id() != "") {
$_SESSION['errors'] = self::$errors;
}
end:
profiling_end('error::generate');
}
