function get_keywords($text)
{
if (($token = strtok(phpdigEpureText($text), ' '))) $nbre_mots[$token] = 1;
while (($token = strtok(' ')))
$nbre_mots[$token] = ($nm = $nbre_mots[$token]) ? $nm + 1 : 1;
return $nbre_mots;
}
function phpdigIndexFile($id_connect, $tempfile, $tempfilesize, $site_id, $origine, $localdomain, $path, $file, $content_type, $upddate, $last_modified, $tags, $ftp_id = '')
{
//globals
global $allowed_link_chars, $phpdig_words_chars, $common_words, $relative_script_path, $s_yes, $s_no, $br;
//current_date
$date = date("YmdHis", time());
//settype($tempfile,'string');
if (!isset($tempfile) || !is_file($tempfile)) {
return 0;
}
settype($page_desc, 'string');
settype($page_keywords, 'string');
if (APPEND_TITLE_META) {
if (is_array($tags)) {
if (isset($tags['description'])) {
$page_desc = phpdigCleanHtml($tags['description']);
}
if (isset($tags['keywords'])) {
$page_keywords = phpdigCleanHtml($tags['keywords']);
}
}
}
$file_content = file($tempfile);
$textalts = "";
//verify the array $text is empty
$n_chunk = 0;
$n_cline = 0;
$text[0] = '';
$exclude = false;
foreach ($file_content as $num => $line) {
if (trim($line)) {
if ($content_type == 'HTML' && trim($line) == PHPDIG_EXCLUDE_COMMENT) {
$exclude = true;
} else {
if (trim($line) == PHPDIG_INCLUDE_COMMENT) {
$exclude = false;
continue;
}
}
if (!$exclude) {
//extract alt attributes of images
if (eregi("(alt=|title=)[[:blank:]]*[\\'\"][[:blank:]]*([ a-z0-9È-Ë]+)[[:blank:]]*[\\'\"]", $line, $regs)) {
$textalts .= $regs[2];
}
//extract the domains names not local and not banned to add in keywords
while (eregi("<a([^>]*href[[:blank:]]*=[[:blank:]]*[\\'\"]?((([a-z]{3,5}://)+(([.a-zA-Z0-9-])+(:[0-9]+)*))*({$allowed_link_chars}\\[?{$allowed_link_chars}\\]?{$allowed_link_chars}))(#[.a-zA-Z0-9-]*)?[\\'\" ]?)", $line, $regs)) {
$line = str_replace($regs[1], "", $line);
if ($regs[5] && $regs[5] != $localdomain && !eregi(BANNED, $regs[2]) && ereg('[a-z]+', $regs[5])) {
if (!isset($nbre_mots[$regs[5]])) {
$nbre_mots[$regs[5]] = 1;
} else {
$nbre_mots[$regs[5]]++;
}
}
}
$n_cline++;
//cut the text after $n_chunk characters
if (strlen($text[$n_chunk]) > CHUNK_SIZE) {
//cut only before an opening tag
if ($content_type != 'HTML' or eregi("^[[:blank:]]*<[a-z]+[^>]*>", $line)) {
$n_cline = 0;
$n_chunk++;
$text[$n_chunk] = " ";
}
}
$text[$n_chunk] .= trim($line) . " ";
}
}
}
//store the number of chunks
$max_chunk = $n_chunk;
//free the array containing file content
if (isset($file_content)) {
unset($file_content);
}
$doc_title = "";
//purify from html tags and store the title
if (is_array($text) && $content_type == 'HTML') {
foreach ($text as $n_chunk => $chunk) {
$chunk = phpdigCleanHtml($chunk);
$text[$n_chunk] = trim($chunk['content']) . " ";
$doc_title .= $chunk['title'];
}
}
//set the title in order <title>, filename, or unknown
if (isset($doc_title) && $doc_title) {
$titre_resume = $doc_title;
} elseif (isset($file) && $file) {
$titre_resume = $file;
} else {
$titre_resume = "Untitled";
}
//title and small description
if (!is_array($page_desc)) {
$page_desc['content'] = '';
} else {
$page_desc['content'] = ' ' . $page_desc['content'];
}
$db_some_text = preg_replace("/([ ]{2,}|\n|\r|\r\n)/", " ", implode("", $text));
if (strlen($db_some_text) > SUMMARY_DISPLAY_LENGTH) {
$db_some_text = substr($db_some_text, 0, SUMMARY_DISPLAY_LENGTH) . "...";
}
$first_words = preg_replace("/([ ]{2,}|\n|\r|\r\n)/", " ", $titre_resume) . "\n" . preg_replace("/([ ]{2,}|\n|\r|\r\n)/", " ", $page_desc['content'] . $db_some_text) . "...";
//hashed string to detect doubles
$md5 = md5($titre_resume . $page_desc['content'] . $text[$max_chunk]) . '_' . $tempfilesize;
//double test :
$phpdigTestDouble = phpdigTestDouble($id_connect, $site_id, $md5, $upddate, $last_modified);
//if no double detected, continue indexing
if ($phpdigTestDouble == 0) {
$text_title = "";
//weight of title and description is there
if (APPEND_TITLE_META) {
for ($itl = 0; $itl < TITLE_WEIGHT; $itl++) {
$text_title .= $doc_title . " " . $page_desc['content'] . " ";
}
$add_text = $text_title;
if (is_array($textalts) && isset($textalts['content'])) {
$add_text .= $textalts['content'];
}
if (is_array($page_keywords) && isset($page_keywords['content'])) {
$add_text .= " " . $page_keywords['content'];
}
array_push($text, $add_text);
}
//words list and occurence of each of them
$total = 0;
foreach ($text as $n_chunk => $text2) {
$text2 = phpdigEpureText($text2, SMALL_WORDS_SIZE);
$separators = " ";
if (isset($token)) {
unset($token);
}
for ($token = strtok($text2, $separators); $token !== FALSE; $token = strtok($separators)) {
if (!isset($nbre_mots[$token])) {
$nbre_mots[$token] = 1;
} else {
$nbre_mots[$token]++;
}
$total++;
}
}
$distinct_words = @count($nbre_mots);
//modify the spider reccord
$spider_id = phpdigUpdSpiderRow($id_connect, $site_id, $path, $file, $first_words, $upddate, $md5, $last_modified, $distinct_words, $tempfilesize);
//here store extract the textual content (return a new ftp_id in case of reconnection)
$ftp_id = phpdigWriteText($relative_script_path, $spider_id, $text, $ftp_id);
//end of textual.
//delete old engine reccord
$query = "DELETE FROM " . PHPDIG_DB_PREFIX . "engine WHERE spider_id={$spider_id}";
mysql_query($query, $id_connect);
//database insert
$it = 0;
$sqlvalues = "";
while (list($key, $value) = @each($nbre_mots)) {
$key = trim($key);
if (!get_magic_quotes_runtime()) {
$key = addslashes($key);
}
//no small words nor stop words
if (strlen($key) > SMALL_WORDS_SIZE and strlen($key) <= MAX_WORDS_SIZE and !isset($common_words[$key]) and ereg('^[' . $phpdig_words_chars[PHPDIG_ENCODING] . '#$]', $key)) {
//if keyword exists, retrieve id, else insert it
$requete = "SELECT key_id FROM " . PHPDIG_DB_PREFIX . "keywords WHERE keyword = '" . $key . "'";
$result_insert = mysql_query($requete, $id_connect);
$num = mysql_num_rows($result_insert);
if ($num == 0) {
//inserts new keyword
$requete = "INSERT INTO " . PHPDIG_DB_PREFIX . "keywords (keyword,twoletters) VALUES ('" . $key . "','" . addslashes(substr(str_replace('\\', '', $key), 0, 2)) . "')";
mysql_query($requete, $id_connect);
$key_id = mysql_insert_id($id_connect);
} else {
//existing keyword
$keyid = mysql_fetch_row($result_insert);
mysql_free_result($result_insert);
$key_id = $keyid[0];
}
//New index record
if ($it == 0) {
$sqlvalues .= "({$spider_id},{$key_id},{$value})";
$it = 1;
} else {
$sqlvalues .= ",\n({$spider_id},{$key_id},{$value})";
}
}
}
if (isset($nbre_mots)) {
unset($nbre_mots);
}
//One query for the entire page
$requete = "INSERT INTO " . PHPDIG_DB_PREFIX . "engine (spider_id,key_id, weight) VALUES {$sqlvalues}\n";
$result_insert = mysql_query($requete, $id_connect);
print $s_yes;
} else {
$spider_id = -1;
print $s_no . phpdigMsg('double') . $br;
}
if (isset($text)) {
unset($text);
}
return $spider_id;
}