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@@ -0,0 +1,188 @@
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+<?php
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+
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+ $IMG_SIZE_PREVIEW = 600;
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+ $IMG_SIZE_MINIATURE = 200;
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+
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+ /*****************************************************
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+ * Finds out the protocol the user is connecting to *
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+ * the site with (http or https) *
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+ * @return: (string): "http://" or "https://". *
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+ ****************************************************/
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+ function getProtocol(){
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+ if (isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1) || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
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+ $protocol = 'https://';
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+ }
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+ else {
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+ $protocol = 'http://';
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+ }
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+ return $protocol;
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+ }
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+
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+ /*****************************************************
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+ * Connects to the database, in 'r' or 'rw' mode. *
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+ * @params: *
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+ * mode: (string) Indicates required permissions *
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+ * on database. 'ro' gives read *
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+ * permissions, and 'rw' read and write *
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+ * permissions. Other values will result in *
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+ * errors. *
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+ * @return: (db connection): The connection handler. *
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+ *****************************************************/
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+ function startdb($mode = 'ro'){
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+ //Include the db configuration file. It's somehow like this
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+ /*
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+ <?php
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+ $host = 'XXXX';
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+ $db_name = 'XXXX';
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+ $username_ro = 'XXXX';
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+ $username_rw = 'XXXX';
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+ $pass_ro = 'XXXX';
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+ $pass_rw = 'XXXX';
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+ ?>
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+ */
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+ include('../../../www/.htpasswd');
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+
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+ //Connect to to database
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+ if ($mode == 'ro')
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+ $con = mysqli_connect($host, $username_ro, $pass_ro, $db_name);
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+ else if ($mode == 'rw')
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+ $con = mysqli_connect($host, $username_rw, $pass_rw, $db_name);
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+
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+ // Check connection
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+ if (mysqli_connect_errno()){
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+ error_log("Failed to connect to database: " . mysqli_connect_error());
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+ return -1;
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+ }
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+
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+ //Set encoding options
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+ mysqli_set_charset($con, 'utf-8');
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+ header('Content-Type: text/html; charset=utf8');
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+ mysqli_query($con, 'SET NAMES utf8;');
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+
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+ //Return the db connection
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+ return $con;
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+ }
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+
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+
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+ /*****************************************************
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+ * This function closes all the opened HTML tags in *
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+ * a given string. *
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+ * *
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+ * @params: *
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+ * html: (string): The string with HTML tags *
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+ *****************************************************/
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+ function closeTags($html) {
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+ preg_match_all('#<(?!meta|img|br|hr|input\b)\b([a-z]+)(?: .*)?(?<![/|/ ])>#iU', $html, $result);
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+ $openedtags = $result[1];
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+ preg_match_all('#</([a-z]+)>#iU', $html, $result);
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+ $closedtags = $result[1];
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+ $len_opened = count($openedtags);
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+ if (count($closedtags) == $len_opened) {
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+ return $html;
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+ }
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+ $openedtags = array_reverse($openedtags);
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+ for ($i=0; $i < $len_opened; $i++) {
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+ if (!in_array($openedtags[$i], $closedtags)) {
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+ $html .= '</'.$openedtags[$i].'>';
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+ } else {
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+ unset($closedtags[array_search($openedtags[$i], $closedtags)]);
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+ }
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+ }
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+ return $html;
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+ }
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+
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+ /*****************************************************
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+ * Text shortener. Given a string, it trims in the *
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+ * proximity of the desired streng, ut to the next *
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+ * white character. If indicated, it will append a *
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+ * link to the full text. *
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+ * *
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+ * @params: *
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+ * text: (string): The text to shorten. *
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+ * length: (int): The desired length. *
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+ * linktext: (string): Text fot the link. *
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+ * link: (string): URI of the full text. *
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+ *****************************************************/
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+ function cutText($text, $length, $linktext, $link){
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+ if (strlen($text) < $length){
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+ return $text;
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+ }
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+ $cut = substr($text, 0, strpos($text, " ", $length));
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+ $cut = closeTags($cut);
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+ if (strlen($cut) == 0){
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+ $cut = $text;
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+ }
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+ if (strlen($text) != strlen($cut)){
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+ $cut = $cut . "... <a href='$link'>$linktext</a>";
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+ }
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+ return $cut;
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+ }
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+
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+ /*****************************************************
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+ * Generates a URL-valid string from a regular one. *
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+ * *
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+ * @params: *
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+ * text: (string): Original string. *
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+ * @return: (string): URL-valid string. *
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+ *****************************************************/
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+ function permalink($text){
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+ $unwanted_array = array('Š'=>'S', 'š'=>'s', 'Ž'=>'Z', 'ž'=>'z', 'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
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+ 'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O', 'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U',
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+ 'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss', 'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c',
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+ 'è'=>'e', 'é'=>'e', 'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o', 'ô'=>'o', 'õ'=>'o',
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+ 'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'þ'=>'b', 'ÿ'=>'y' );
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+ $str = strtr( $text, $unwanted_array );
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+ $str = preg_replace('/[^\da-zA-Z ]/i', '', $str);
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+ $str = str_replace(' ', '-', $str);
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+ return $str;
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+ }
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+
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+
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+ /*****************************************************
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+ * Validates a user/password combo. *
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+ * *
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+ * @params: *
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+ * con: (Mysql connectrion): DB connection. *
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+ * user: (string): Username. *
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+ * pass: (string): Password. *
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+ * @return: (int): User id, or -1 if the user and *
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+ * pass didn't match. *
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+ *****************************************************/
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+ function login($con, $user, $pass){
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+ session_start();
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+ $q = mysqli_query($con,"SELECT id, salt, username AS username, sha1(salt) AS s FROM user WHERE (lower(username) = lower('$user') OR lower(email) = lower('$user')) AND password = sha1(concat('$pass', sha1(salt)));");
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+ if (mysqli_num_rows($q) == 1){
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+ $r = mysqli_fetch_array($q);
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+ $_SESSION['id'] = $r['id'];
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+ $_SESSION['salt'] = $r['s'];
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+ $_SESSION['name'] = $r['username'];
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+ return $r['id'];
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+ }
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+ else{
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+ error_log("Invalid login. username = $user, id = $_SESSION[id]");
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+ return -1;
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+ }
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+ }
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+
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+ /*****************************************************
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+ * Finds out the IP address of the client. *
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+ * *
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+ * @return: (String): Client IP address. *
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+ *****************************************************/
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+ function getUserIP(){
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+ $client = @$_SERVER["HTTP_CLIENT_IP"];
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+ $forward = @$_SERVER["HTTP_X_FORWARDED_FOR"];
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+ $remote = $_SERVER["REMOTE_ADDR"];
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+ if(filter_var($client, FILTER_VALIDATE_IP)){
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+ $ip = $client;
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+ }
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+ elseif(filter_var($forward, FILTER_VALIDATE_IP)){
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+ $ip = $forward;
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+ }
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+ else{
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+ $ip = $remote;
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+ }
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+ return $ip;
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+ }
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+
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+?>
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Iñigo Valentin