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File: php-tools.php

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File: php-tools.php
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Class: jlaso PHP tools
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<?php /** * Class DbTools * * @author jlaso <wld1373@gmail.com> * @revision 17.08.2014 */ class DbTools { /** * Connect with the DB_NAME and returns the object mysql to access * * @param string $dbname * @return mysqli */ public static function connect($dbname = DB_NAME) { try { $conn = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, $dbname); } catch (Exception $e) { die ( "There is an error access to DB: ".$e->getMessage() ); } return $conn; } /** * offline version 'dont requires db connection' of mysql_real_escape_string * * @param string $value * @return string */ public static function my_real_escape_string($value) { $search = array("\x00", "\n", "\r", "\\", "'", "\"", "\x1a"); $replace = array("\\x00", "\\n", "\\r", "\\\\" ,"\'", "\\\"", "\\\x1a"); return str_replace($search, $replace, $value); } /** * filters $data removing malicious code * * @param string $data * @return string * */ public static function filterData($data) { $data = trim(htmlentities(strip_tags($data))); if (get_magic_quotes_gpc()){ $data = stripslashes($data); } $data = self::my_real_escape_string($data); return $data; } /** * returns an array with the databases of the MySQL server, DB_USER needs privileges * * @return array */ public static function showDatabases() { $conn = DbTools::connect(); $databases = array(); $sql = "show databases"; try { $result = $conn->query($sql); $num = $result->num_rows; if ($num) { for ($i=0; $i<$num; $i++) { $databases[] = $result->fetch_assoc(); } $result->free(); } $conn->close(); }catch (Exception $e) { $conn->close(); die("Query failed: " . $e->getMessage()); } return $databases; } /** * returns an array with the tables of $dbname * * @param string $dbname * @return array */ public static function showTables($dbname) { $conn = DbTools::connect($dbname); $tables = array(); $sql = "show tables"; try { $result = $conn->query($sql); $num = $result->num_rows; if ($num) { for ($i=0; $i<$num; $i++) { $tables[] = $result->fetch_assoc(); } $result->free(); } $conn->close(); }catch (Exception $e) { $conn->close(); die("Query failed: ".$e->getMessage()); } return $tables; } /** * returns an array with description of each field of $table * @param string $dbname * @param string $table * @return array */ public static function describeTable($dbname, $table) { $conn = DbTools::connect($dbname); $fields = array(); $sql = "describe {$table}"; try { $result = $conn->query($sql); $num = $result->num_rows; if ($num) { for ($i=0; $i<$num; $i++) { $fields[] = $result->fetch_assoc(); } $result->free(); } $conn->close(); }catch (Exception $e) { $conn->close(); die("Query failed: ".$e->getMessage()); } return $fields; } /** * returns the number of records of $table * * @param string $dbname * @param string $table * @return int */ public static function numOfRecords($dbname, $table) { $conn = DbTools::connect($dbname); $num = 0; $sql = "select * from {$table}"; try { $result = $conn->query($sql); $num = $conn->affected_rows; $conn->close(); }catch (Exception $e) { $conn->close(); die("Query failed: ".$e->getMessage()); } return $num; } /** * returns pretty description of field l.ist * @param array $mixed * @param string $tab * @return string */ public static function genFldLstFromDescribeTable($mixed, $tab="\t\t") { $result = ""; foreach ($mixed as $elem){ $field = $elem['Field']; $result .= (($result)? ",\n" : "")."{$tab}'{$field}' => null"; } return $result; } /** * returns field list without id * * @param array $mixed * @param string $tab * @return string */ public static function genFldLstWithoutID($mixed,$tab="\t\t") { $result = ""; $i=1; foreach ($mixed as $elem){ $field = $elem['Field']; if ($i++>1){ $result .= (($result)? ",\n" : "")."{$tab}'{$field}' => null"; } } return $result; } /** * returns field name list without id * * @param array $mixed * @param string $tab * @return string */ public static function genFldNameLstWithoutID($mixed, $tab="\t\t") { $result = ""; foreach ($mixed as $elem){ $field = $elem['Field']; $result .= (($result)? ",\n" : $tab).$field; } return $result; } /** * returns a foreign list of fields for $table * * @param string $dbname * @param string $table * @return array */ public static function describeForeigns($dbname, $table) { $sqlCreation = self::sqlCreation($dbname, $table); // find with regex CONSTRAINTS definitions $num = preg_match_all( "/CONSTRAINT\s*`(\w+)`\s*FOREIGN\sKEY\s*\(`(\w+)`\)\s*REFERENCES\s`(\w+)`\s*\(`(\w+)`\),?/", $sqlCreation, $matches, PREG_SET_ORDER ); $fields = array(); if ($num) { for ($i=0; $i<$num; $i++) { $fields[]= array ( 'constraintName' => $matches[$i][1], 'foreignKey' => $matches[$i][2], 'referencesDb' => $matches[$i][3], 'referencesFld' => $matches[$i][4] ); } } return $fields; } /** * returns the SQL sentence needed to create a table * * @param string $dbname * @param string $table * @return string */ public static function sqlCreation($dbname, $table) { $conn = DbTools::connect($dbname); $sql = "show create table {$table}"; $sqlCreation = ""; try { $result = $conn->query($sql); //$st=$result->fetch_assoc(); if ($result) { $jj = $result->fetch_array(); $sqlCreation = $jj[1]; } $conn->close(); }catch (Exception $e) { $conn->close(); die("Query failed: ".$e->getMessage()); } return $sqlCreation; } } /** * Class HtmlTools * * @author jlaso <wld1373@gmail.com> * @revision 17.08.2014 */ class HtmlTools { /** * content of a html file until </head> label * if specified load generic javascript plus $jq code * to use put this at the first of each PHP file that generates html code: * <?php require_once 'php-tools.php'; ?> * <?php echo HtmlTools::headContent(); ?> * * @param string $jq */ public static function headContent($jq = null) { $server = _SERVER_; echo <<<EOD <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head> <link rel="image_src" href="img/logo.gif" /> <meta property="og:description" content="my page" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta property="og:title" content="title" /> <meta property="og:type" content="website" /> <meta property="og:url" content="url" /> <meta property="og:image" content="logo.gif" /> <meta property="og:site_name" content="title" /> <meta name="Robots" content="all" /> <link rel="icon" href="favicon.ico" type="image/x-icon" /> <link rel="shortcut icon" type="image/x-icon" href="favicon.ico" /> <title>my page</title> <link href="{$server}/css/styles.css" rel="stylesheet" type="text/css" /> <!--[if IE]> <link href="{$server}/css/ie.css" rel="stylesheet" type="text/css" /> <![endif]--> EOD; if(isset($jq)){ echo <<<EOD <link media="screen" rel="stylesheet" href="{$server}/css/colorbox.css" /> <script type="text/javascript" src="{$server}/js/jquery.min.js"></script> <script type="text/javascript" src="{$server}/js/jquery.colorbox-min.js"></script> EOD; echo $jq; } echo <<<EOD </head> EOD; } /** * @param bool $return * @return string */ public static function reloadJavascript($return = false) { $html = "<script type='text/javascript'>window.location.reload();</script>"; if ($return){ return $html; }else{ print $html; } } /** * @param string $url * @param bool $return * @return string */ public static function locationJavascript($url = "",$return = false) { if (!$url) { $url = $_REQUEST['PHP_SELF']; } $html = "<script type='text/javascript'>window.location.href='{$url}';</script>"; if ($return) { return $html; } else { print $html; } } /** * @param array $opts * @return string */ public static function genSelectFromArray ( $opts = array() ) { $defaultOptions = array ( "selected"=> "", "name" => "", "id" => "", "multiple"=> FALSE, "optgroup"=> "", "size" => 1, "data" => array(), "fldkey" => "id", "fldname" => "name", "select" => true ); $options = array_merge($defaultOptions, $opts); $id = ($options['id'])? "id='".$options['id']."'" : ""; $name = ($options['name'])? "name='".$options['name']."'" : ""; $multiple = ($options['multiple'])? "MULTIPLE" : ""; $optgroup = ($options['optgroup'])? "<optgroup label='".$options['optgroup']."'>" : ""; $selected = $options['selected']; $size = "size='".intval($options['size'])."'"; $fldkey = $options["fldkey"]; $fldname = $options["fldname"]; // listado de registros $U = $options["data"]; if ($options['select']) $html = "<SELECT {$id} {$name} {$multiple} {$size} >"; $html .= $optgroup; foreach ( $U as $elem ) { $desc = $elem[$fldname]; $key = $elem[$fldkey]; $html .= "<OPTION VALUE='{$key}'".(($desc == $selected)? " SELECTED >" : ">").$desc."</OPTION>"; } $html .= ($optgroup)? "</optgroup>" : ""; if ($options['select']) $html .= "</SELECT>"; return $html; } /** * @param string $fileName * @param array $opts * @return mixed|string */ public static function template($fileName, $opts = array()) { $result = ""; if ($fileName) { $file = file_get_contents($fileName); if ($opts) { $search = array(); $replace= array(); foreach ($opts as $key=>$value) { $search[]=$key; $replace[]=$value; } $result = str_replace($search, $replace, $file); } } return $result; } /** * spanish pluralization of a word * * @param string $data * @return string */ public static function plural($data) { $lowercase = strtolower($data); if (substr($lowercase, -1) != "s") { if (preg_match("/.*(a|e|i|o|u)s$/", $lowercase)) { return $data."s"; }else { return $data."es"; } }else return $data."os"; } /** * @param string $data * @return string */ public static function capitalize($data) { return strtoupper($data[0]).strtolower(substr($data, 1)); } /** * $arr must to have two dimensions: first numeric and second associative * * @param array $arr * @param null $id * @return string */ public static function genTableFromMixed ($arr = array(), $id = null) { $id = (isset($id)) ? "id='{$id}'" : ""; $html = "<table {$id}>\n\t<thead>\n"; foreach ($arr[0] as $key=>$value) { $html .= "\t\t<td>{$key}</td>\n"; } $html .= "\t</thead>\n"; foreach ($arr as $subarray) { $html .= "\t<tr>\n"; foreach ($subarray as $key=>$value) { $html .= "\t\t<td>{$value}</td>\n"; } $html .= "\t</tr>\n"; } $html .= "</table>\n"; return $html; } } /** * Class SessionTools */ class SessionTools { /** * * check if user is loged * * @global mysql $db */ function isLoged() { @session_start(); global $db; // check user agent if (isset($_SESSION['HTTP_USER_AGENT'])) { if ($_SESSION['HTTP_USER_AGENT'] != md5($_SERVER['HTTP_USER_AGENT'])) { self::logout(); exit; } } /* If session not set, check for cookies set by Remember me */ if (!isset($_SESSION['usr_email']) && !isset($_SESSION['created_at']) ) { if(isset($_COOKIE['usr_email']) && isset($_COOKIE['created_at'])){ /* we double check cookie expiry time against stored in database */ $cookie_user_email = DbTools::filterData($_COOKIE['usr_email']); $sessionKeyQry = mysql_query("select `session_key`,`last_access` from `users` where `email` ='{$cookie_user_email}'") or die(mysql_error()); list($sessionkey,$lastaccess) = mysql_fetch_row($sessionKeyQry); // check if cookie has expired if( (time() - time($lastaccess)) > 60*60*24*APP_COOKIE_EXPIRA) { self::logout(); } /* Security check with untrusted cookies - dont trust value stored in cookie. /* We also do authentication check of the `ckey` stored in cookie matches that stored in database during login*/ if( !empty($sessionkey) && MyTools::isEmail($_COOKIE['usr_email']) && $_COOKIE['usr_session_key'] == sha1($sessionkey) ) { session_regenerate_id(); //against session fixation attacks. $_SESSION['usr_email'] = $_COOKIE['usr_email']; $_SESSION['created_at'] = $_COOKIE['created_at']; $_SESSION['usr_administrator'] = $_COOKIE['usr_administrator']; $_SESSION['HTTP_USER_AGENT'] = md5($_SERVER['HTTP_USER_AGENT']); } else { self::logout(); } } else { // return to homepage header("Location: /"); exit(); } } } /** * * @global array $get * @global array $data * @param string $postAcc , valor de la variable POST accion * @return boolean * * pasa todos los $_POST a $data y todos los $_GET a $get y si se le pasa * una acción en $postAcc devuelve TRUE si $_POST["accion"]==$postAcc */ function getAndPost ($postAcc = null) { global $get; global $data; foreach($_GET as $key => $value) { $get[$key] = DbTools::filterData($value); } if (isset($_POST['accion']) && ($_POST['accion']==$postAcc)){ foreach($_POST as $key => $value) { $data[$key] = DbTools::filterData($value); } return TRUE; }else { return FALSE; } } public static function logout() { unset($_SESSION['usr_email']); // return to homepage header("Location: /"); exit(); } } class MyTools { /** * * @param string $url * @return string * * devuelve una cadena en la que se han sustituido los espacios por guiones bajos * */ public static function EncodeURL($url) { $new = strtolower(ereg_replace(' ','_',$url)); return($new); } /** * * @param string $url * @return string * * devuelve una cadena en la que se restablecen los guiones bajos a espacios */ public static function DecodeURL($url){ $new = ucwords(ereg_replace('_',' ',$url)); return($new); } /** * * @param string $str * @param int $len * @return string * * si la cadena pasada como argumento excede de la longitud, se corta añadiendo ... */ public static function puntosSuspensivos($str, $len) { if (strlen($str) < $len) return $str; $str = substr($str,0,$len); if ($spc_pos == strrpos($str," ")) $str = substr($str,0,$spc_pos); return $str . "..."; } /** * * @param string $email * @return boolean * * comprueba mediante expresiones regulares si una cadena parece un email */ public static function isEmail($email) { return preg_match('/^\S+@[\w\d.-]{2,}\.[\w]{2,6}$/iU', $email) ? TRUE : FALSE; } /** * * @param string $id * @return boolean * * comprueba si la cadena pasada parece un ID */ public static function esID($id){ return preg_match('/^[a-z\d_]{5,20}$/i', $id) ? TRUE : FALSE; } /** * * @param string $url * @return boolean * * comprueba si la cadena pasada 'parece' una URL */ public static function esURL($url) { return preg_match('/^(http|https|ftp):\/\/([A-Z0-9][A-Z0-9_-]*(?:\.[A-Z0-9][A-Z0-9_-]*)+):?(\d+)?\/?/i', $url) ? TRUE : FALSE; } /** * * @param string $x * @param string $y * @return boolean * * comprueba si la contraseña y repita contraseña coinciden y son mayores de 4 */ public static function checkPwd($x,$y) { if (empty($x) || empty($y) ) return false; if (strlen($x) < 4 || strlen($y) < 4) return false; if (strcmp($x,$y) != 0) return false; return true; } /** * * @param int $length * @return string * * genera una contraseña aleatoria de la longitud indicada (por defecto 7) * */ public static function genPassword($length = 7, $repeticiones = false){ $password = ""; $possible = "0123456789bBcCdDfFgGhHjJkKmMnNpPqQrRsStTvVwWxXyYzZ$#?+"; //sin vocales para evitar palabras que suenen if (!$repeticiones && ($length>count_chars($posible))) return -1; $i = 0; while ($i < $length) { $char = substr($possible, mt_rand(0, strlen($possible)-1), 1); if ($repeticiones || !strstr($password, $char)) { $password .= $char; $i++; } } return $password; } /** * * @param int $length * @return string * * genera una key aleatoria de la longitud indicada (por defecto 7) * a diferencia del password, la key puede contener vocales */ public static function genKey($length = 7, $repeticiones = false){ $password = ""; $possible = "0123456789abcdefghijkmnopqrstuvwxyz"; if (!$repeticiones && ($length>count_chars($posible))) return -1; $i = 0; while ($i < $length) { $char = substr($possible, mt_rand(0, strlen($possible)-1), 1); if ($repeticiones || !strstr($password, $char)) { $password .= $char; $i++; } } return $password; } /** * * @param string $email * @return string * * sustituye la arroba de un email por un guión bajo * */ public static function slugEmail ($email) { return str_replace("@", "_", $email); } /** * * @param string $email * @return string * * convierte el guión bajo en una arroba */ public static function deslugEmail ($email) { return str_replace("_", "@", $email); } } class DirTools { /** * * @param string $dirname * @param boolean $solofotos * @return array * * inspecciona el directorio pasado como argumento y almacena todos sus archivos * (o sólo las fotos) en un array que luego se devuelve * */ public static function dirToArray ($dirname, $solofotos=1) { $a = array(); $directorio=opendir($dirname); while ($archivo = readdir($directorio)) { if (!(($archivo=='.') || ($archivo=='..'))) { if (@filetype($dirname."/".$archivo)=="file") { if ($solofotos) { $ext=extensionArchivo($archivo); if (in_array($ext, array('jpg','gif','png'))) $a[]=$archivo; }else{ $a[]=$archivo; } } } } closedir($directorio); sort($a); return $a; } /** * * @param string $base * @param string $opcion1 * @param string $opcion2 * @return array * * devuelve un array que contiene como primer elemento la base + opcion1 y * como segundo la base + opcion2 * este útil se gasta para las carpetas base y la de miniaturas * */ public static function opcionBase ( $base, $opcion1, $opcion2 ){ return array ($base.$opcion1, $base.$opcion2); } /** * * @param array $a * @return string * * funciona como array_rand($a); devuelve un elemento del array al azar * utilizado para elegir una foto de un directorio al azar para presentarla * */ public static function randomElemArray($a) { $elem = rand(0, sizeof($a)-1); return $a[$elem]; } } /** * Class Calendar */ class Calendar { private $day; private $month; private $year; private $monthes; private $myselfphp; public function __construct($myself,$year=0,$month=0,$day=0){ $this->months = $this->months(); $this->myselfphp = (empty($myself))?$_SERVER['PHP_SELF']:$myself; $this->year = ($year)?intval($year):date("Y"); $this->month = ($month)?intval($month):date("m"); $this->day = ($day)?intval($day):date("d"); } public function setMonth($month=0) { $this->month = ($month)?$month:date("m"); } public function getMonth() { return $this->month; } public function setYear($year=0) { $this->year = ($year)?$year:date("Y");} public function getYear() { return $this->year; } /** * @param int $day */ public function setDia($day=0) { $this->day = ($day)?intval($day):date("d"); } /** * @return int */ public function getDia() { return $this->day; } /** * @param int $deltaMonth * @param int $deltaYear * @param bool $print * @return string */ public function getGetJsClause($deltaMonth=0,$deltaYear=0,$print = true) { $year = $deltaYear + $this->year; $month = $deltaMonth + $this->month; if ($month<1) { $month = 12; $year--; } if ($month>12) { $month = 1; $year++; } //if ($deltaMonth || $deltaYear) $result .= '?month='.$month.'&year='.$year; $result = "getCalendar( {$this->day},{$month},{$year});"; if ($print) print $result; else return $result; } public function getGetJsClause2($month,$year) { if ($month===0) $month = $this->getMonth(); if ($year===0) $year=$this->getYear(); $result = "getCalendar( 1,{$month},{$year});"; return $result; } /** * @param int $day * @return string */ public function getAsYYYY_MM_DD($day=-1) { if ($day===0) { return ""; } if ($day===-1) { $day = $this->day; } return sprintf("%04d-%02d-%02d",$this->year,$this->month,$day); } /** * @param $day * @return string */ public function getAsYYYYMMDD($day=-1) { if ($day===0) return ""; if ($day===-1) $day = $this->day; return sprintf("%04d%02d%02d",$this->year,$this->month,$day); } public function getAsDate($dd=0) { return date("Y-m-d", mktime(0, 0, 0, $this->month, ($dd)?$dd:$this->day , $this->year)); } /** * @param string $lang * @return array */ public function months( $lang = "es") { switch($lang){ case "es": $r = array( "", // first blank to start with index 1 "Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio", "Julio", "Agosto", "Setiembre", "Octubre", "Noviembre", "Diciembre" ); break; case "en": default: $r = array( "", // first blank to start with index 1 "January", "February", "Mar", "April", "May", "Juny", "July", "August", "Sepitember", "October", "November", "December" ); break; } return $r; } /** * to generate month select */ public function selectMonth() { $html = "<select id='month' onchange='".$this->getGetJsClause2( 'this.value', 0 )."'>"; for ($i=1;$i<13;$i++){ $html .= "<option name='{$i}' value='{$i}'"; if ($this->month==$i) $html.=" selected "; $html .= ">".$this->months[$i]."</option>"; } $html .= "</select>"; return $html; } /* * para generar el selector de año */ public function selectYear($from=1970, $to=2100) { $html = "<select id='year' onchange='".$this->getGetJsClause2( 0, 'this.value' )."'>"; for ($i=$from;$i<=$to;$i++){ $html .= "<option name='{$i}' value='{$i}'"; if ($this->year==$i) $html.=" selected "; $html .= ">".$i."</option>"; } $html .= "</select>"; return $html; } /** * */ public function adjustRequestDate() { $this->year = (isset($_REQUEST['year']) && intval($_REQUEST['year'])) ? intval($_REQUEST['year']) : date("Y"); $this->month = (isset($_REQUEST['month']) && intval($_REQUEST['month'] )) ? intval($_REQUEST['month'] ) : date("m"); /*if ($this->month<1) { $this->month = 12; $this->year--; } if ($this->month>12) { $this->month = 1; $this->year++; }*/ $this->day = (isset($_REQUEST["day"]) && intval($_REQUEST['day'])) ? intval($_REQUEST["day"]) : date("d"); } /** * return first day * * @return mixed */ public function firstDay() { $days = array(7,1,2,3,4,5,6); // day sort (1st is sunday) return $days[date("w", mktime(0, 0, 0, $this->month, 1, $this->year)) ]; } /** * return last day of month * * @return int */ public function lastDay() { return intval( date("t",mktime(0, 0, 0, $this->month, 1, $this->year)) ); } /** * return number of day of the monday in this week * * @return int */ public function mondayWeek() { // 0=sunday $dayofweek = date("w", mktime(0, 0, 0, $this->month, $this->day, $this->year)); return $this->day - $dayofweek + 1; } /** * @param string $str * @param bool $date * @return int|string */ public static function fromSpanishDate($str, $date=false) { if (!$str) { return ''; } // dd/mm/YYYY HH:MM $day = intval(substr($str, 0, 2)); $month = intval(substr($str, 3, 2)); $year = intval(substr($str, 6, 4)); $hour = intval(substr($str, 11, 2)); $min = intval(substr($str, 14, 2)); $ret = mktime($hour, $min, 0, $month, $day, $year); if ($date) { return $ret; }else{ return date("Y-m-d H:i", $ret); } } /** * @param string $str * @return null|string */ public static function fromEnglishDate($str) { $date = DateTime::createFromFormat("Y-m-d H:i:s", $str); if (!$date) { return null; } try { $ret = $date->format("d/m/Y H:i"); }catch(Exception $e){ print "Error: ".$e->getMessage(); $ret = null; } return $ret; } } /** * Class strTools */ class strTools { /** * @param $char * @param $long * @return string */ public static function gen($char, $long) { $ret = ""; for ($i=0;$i<$long;$i++) { $ret .= $char; } return $ret; } /** * dirt a string from $start to $start+$long-1 with the $char passed */ public static function dirt($str, $char, $start, $long) { $tot = strlen($str); $s = self::gen($char,$long); $a = substr($str, 0, $start-1); $b = substr($str, $start+$long, $tot); return $a.$s.$b; } } ?>