links-zonder-mysql

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  1. links-zonder-mysql

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-----------------
links.inc.php
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<?php

/*
*
*@file: links.inc.php
*@version: 2.1 [26-02-2006]
*@auteur: Boaz den Besten
*@www: www.n3rd.nl
*@omschrijving:
* een links systeem zonder MySQL
* variabele: user een username om mee in te loggen
* variabele: pass een password om mee in te loggen
* variabele: file het bestand waar de links in opgeslagen worden.
* functie: read_csv een functie om een csv bestand in een array te zetten
* functie: addlink een link toevoegen
* functie: new_file maakt het bestand leeg
* functie: login_do inlog gegeven checken en inloggen
* functie: login_check inlog gegeven checken
*
*/

class csv{

    var $user = 'username';
    var $pass = 'password';
    var $file = 'links.csv';

    function read_csv(){
        $data = array();
        $file = file($this->file);
        foreach($file as $key => $value){
            $data[$key] = explode(';', trim($value));
        }
        return $data;
    }
    
    function addlink($addr, $name, $view=1){
        if(!empty($addr) && !empty($name) && !strpos($addr, ';') && !strpos($name, ';') && ($view==1||$view==0)){
            if(substr($addr, 0, 7) != 'http://'){
                $addr = 'http://' . $addr;
            }
            $addr = htmlentities(trim($addr), ENT_QUOTES);
            $name = htmlentities(trim($name), ENT_QUOTES);
            $file = fopen($this->file, 'a');
            fwrite($file, $view . ";" . substr($name, 0, 50) . ";" . substr($addr,0, 157) . "\r\n");
            fclose($file);
            return true;
        }else{
            return false;
        }
    }
    
    function new_file(){
        $file = fopen($this->file, 'w');
        fwrite($file, '');
        fclose($file);
    }
    
    function login_do($user, $pass, $rechten=1){
        if($user == $this->user && $pass == $this->pass){
            $_SESSION['user'] = $user;
            $_SESSION['pass'] = md5($pass);
            $_SESSION['rechten'] = $rechten;
            $_SESSION['client_ip'] = $_SERVER['REMOTE_ADDR'];
            return true;
        }else{
            return false;
        }
    }
    
    function login_check($rechten=1){
        if(!isset($_SESSION['user']) || !isset($_SESSION['pass']) || !isset($_SESSION['rechten'])){
            return false;
        }else{
            if($_SESSION['user'] == $this->user && $_SESSION['pass'] == md5($this->pass) && $_SESSION['rechten'] >= $rechten && $_SESSION['client_ip'] == $_SERVER['REMOTE_ADDR']){
                return true;
            }else{
                return false;
            }
        }
    }
        
}

?>


-----------------
addlink.php
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<?php

include_once('links.inc.php');

$csv = new csv;

echo "<h1>Add a link</h1>\r\n";

if(isset($_POST['submit'])){
    if($csv->addlink($_POST['addr'], $_POST['name'])){
        echo "Thanks!\r\n";
    }else{
        echo "Your link could not be added.\r\n";
    }
}else{
    echo "<form method=\"post\" action=\"" . $_SERVER['PHP_SELF'] . "\">\r\n";
    echo "<p>Link name:<br /><input name=\"name\" type=\"text\" maxlength=\"50\" /></p>\r\n";
    echo "<p>Link adress:<br /><input name=\"addr\" type=\"text\" maxlength=\"150\" /></p>\r\n";
    echo "<input type=\"submit\" name=\"submit\" value=\"Submit\" />\r\n";
    echo "</form>\r\n";
}

echo "<br />\r\n";
echo "<a href=\"links.php\">Back</a>\r\n";

?>


-----------------
links.php
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<?php

include_once('links.inc.php');

$csv = new csv;

echo "<h1>Links</h1>\r\n";

foreach($csv->read_csv() as $link){
    if($link[0] == '1'){
        echo "<a href=\"" . $link[2] . "\">" . $link[1] . "</a><br />\r\n";
    }
}

echo "<br />\r\n<a href=\"addlink.php\">Add a link</a> - <a href=\"login.php\">Admin</a>";

?>


-----------------
login.php
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<?php

session_start();

if((!isset($_POST['username']) || !isset($_POST['password'])) && (!isset($_SESSION['user']) || !isset($_SESSION['pass']))){
    echo "<h1>Login</h1>\r\n";
    echo "<form method=\"post\" action=\"" . $_SERVER['PHP_SELF'] . "\">\r\n";
    echo "<p>Username<br /><input type=\"text\" name=\"username\" /></p>\r\n";
    echo "<p>Password<br /><input type=\"password\" name=\"password\" /></p>\r\n";
    echo "<input type=\"submit\" name=\"submit\" value=\"Submit\" />\r\n";
    echo "</form>\r\n";
}else{
    include_once('links.inc.php');
    
    $csv = new csv;
    
    if(isset($_SESSION['user']) && isset($_SESSION['pass']) && $csv->login_check()){
        header("location: admin.php");
    }else{
        if($csv->login_do($_POST['username'], $_POST['password'])){
            header("location: admin.php");
        }else{
            echo "Login failed!\r\n";
        }
    }
}

echo "<br />\r\n<a href=\"links.php\">Back</a>";

?>


-----------------
admin.php
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<?php

session_start();

include_once('links.inc.php');

$csv = new csv;

if(!$csv->login_check()){
    header("Location: login.php");
}

if(isset($_POST['submit'])){
    $csv->new_file();
    foreach($_POST['name'] as $key => $name){
        if(isset($_POST['view'][$key])){
            $view = 1;
        }else{
            $view = 0;
        }
        $csv->addlink($_POST['addr'][$key], $name, $view);
    }
}

if(isset($_POST['clear'])){
    $csv->new_file();
}

    echo "<h1>Admin</h1>\r\n";

    echo "<form method=\"post\" action=\"" . $_SERVER['PHP_SELF'] . "\">\r\n";


$i = 0;
foreach($csv->read_csv() as $link){

    echo "<input name=\"view[" . $i . "]\" type=\"checkbox\"";
    if($link[0] == 1){
        echo " checked=\"checked\"";
    }
    echo " />";
    
    echo " <input name=\"name[" . $i . "]\" type=\"text\" value=\"" . $link[1] . "\" maxlength=\"50\" />";
    echo " <input name=\"addr[" . $i . "]\" type=\"text\" value=\"" . $link[2] . "\" maxlength=\"150\" />";
    
    echo "<br />\r\n";
    $i++;
}

echo "<br />\r\n<input type=\"submit\" name=\"submit\" value=\"Submit\" /> <input type=\"submit\" name=\"clear\" value=\"Clear All\" />\r\n";

echo "</form>\r\n";

echo "<a href=\"loguit.php\">Logoff</a>\r\n";

?>


-----------------
loguit.php
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<?php

session_start();

session_destroy();

header("Location: login.php");

?>

 
 

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