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action_copy_web_to_file.php：Code Content
							<?php
$step               = $_POST['step'];
$url2get            = $_POST['url2get'];
if ($_POST['next_step_number'])
{
    $next_step_number = $_POST['next_step_number'];
    $next_step_number++;
}
else $next_step_number = '1';
if ($url2get)
{
    // parsing and extracting all components
    $components = parse_url ($url2get);
    
    $url_filename = basename($components['path']);
}
    
function print_step($text)
{
    global $next_step_number;
    echo "<span class="big_text">$next_step_number. $text</span><br /><br />n";
    $printed_steps ++;
}
switch ($step)
{
    case 'do_copy':
    {
        set_time_limit(0);
        ignore_user_abort();
        
        
        $set_filename = $_POST['save_as_filename'];
        
        $scheme     = $_POST['request_values']['scheme'];
        $host       = $_POST['request_values']['host'];
        $port       = $_POST['request_values']['port'];
        $user       = $_POST['request_values']['user'];
        $pass       = $_POST['request_values']['pass']; 
        $path       = $_POST['request_values']['path']; 
        $query      = $_POST['request_values']['query'];
        $fragment   = $_POST['request_values']['fragment'];
        
                            $built_url  = $scheme.'://';        
        if ($user || $pass) $built_url .= $user.':'.$pass.'@';
                            $built_url .= $host;
        if ($port)          $built_url .= ':'.$port;
                            $built_url .= $path;
        if ($query)         $built_url .= '?'.$query;
        if ($fragment)      $built_url .= '#'.$fragment;        
        
        if ($_POST['override_filename'])
            $destination = $target_folder.$set_filename;
        else
            $destination = $target_folder.$url_filename;
        // checking if destination already exists
        
        if (!$_POST['overwrite'] && is_file($destination))
        {
            echo "<span class="error_box">Destination <b>$destination</b> already exists!</span>n";
            echo "<form action=execute.php method=POST>n";
            migrate_across_request();
            echo "<input type=hidden name=step value=do_copy>n";
            echo "<input type=hidden name=next_step_number value=1>n"; 
            echo "<input type=hidden name="request_values[scheme]" value="".$_POST['request_values']['scheme']."">n";
            echo "<input type=hidden name="request_values[host]" value="".$_POST['request_values']['host']."">n";
            echo "<input type=hidden name="request_values[port]" value="".$_POST['request_values']['port']."">n";
            echo "<input type=hidden name="request_values[user]" value="".$_POST['request_values']['user']."">n";
            echo "<input type=hidden name="request_values[pass]" value="".$_POST['request_values']['pass']."">n";
            echo "<input type=hidden name="request_values[path]" value="".$_POST['request_values']['path']."">n";
            echo "<input type=hidden name="request_values[query]" value="".$_POST['request_values']['query']."">n";
            echo "<input type=hidden name="request_values[fragment]" value="".$_POST['request_values']['fragment']."">n";
            echo "<input type=hidden name="override_filename" value="".$_POST['override_filename']."">n";        
            echo "<input type=hidden name="save_as_filename" value="".$_POST['save_as_filename']."">n";        
            echo "<input type=hidden name="overwrite" value="1">n";        
            echo "<input type=hidden name="binary_mode" value="".$_POST['binary_mode']."">n";        
            echo "<input type=hidden name="buffer_size" value="".$_POST['buffer_size']."">n";
            echo "<input type="submit" name="submit" value="Overwrite">n";
            echo "</form>n";
            die();
        }
        echo "<table>n";
        echo "<tr><th>source</th><td>$built_url</td></tr>n";
        echo "<tr><th>destination</th><td>$destination</td></tr>n";
        echo "</table>n";        
        
        // now opening files
        $begin_copy_time = getmicrotime();
        $binary = ($_POST['binary_mode']) ? 'b' : '';
        $fp_src = fopen($built_url,'r'.$binary);
        if (!$fp_src)
            die("<span class="error_box">impossible to open source in read mode!</span>n");
            
        $fp_dst = fopen($destination,'w'.$binary);
        if (!$fp_dst)
            die("<span class="error_box">impossible to open destination in write mode!</span>n");        
            
        flush();// may not work, depends on buffering. see flush() in PHP manual for more informations
        // copying
        $buffer_size = $_POST['buffer_size'];
        if (false == settype($buffer_size,integer)) 
            die('invalid value for buffer size');
        $buffer_size = abs($buffer_size);
        
        
        while ($buffered = fread($fp_src,8048))
        {
            fwrite($fp_dst,$buffered,8048);
        }
        
        fclose($fp_src);
        fclose($fp_dst);
        $end_copy_time = getmicrotime();
        
        if (is_file($destination))
        {
            echo "<span class="success_box">copy may have worked. please check it's properties</span><br><br>n";
            $fsize = filesize($destination);
            $ttime = $end_copy_time - $begin_copy_time; 
            echo "<table>n";
            echo "<tr><th>Destination file size</th><td>".FormatTailleFichier($fsize,'o')." ($fsize)</td></tr>n";
            echo "<tr><th>Total time</th><td>".timetohms($ttime)." (".number_format($ttime,2)." seconds)</td></tr>n";
            echo "<tr><th>Speed</th><td>".number_format(($fsize/$ttime),2)." octets/second</td></tr>n";
            echo "</table>n";
        }
        else
        {
            echo "<span class="error_box">Something has failed. destination file doesn't exists!</span>n";    
        }
        
        
        break;
    }
    case 'show_parsed_url':
    {
        print_step('Confirm Parameters');
        echo "<form action=execute.php method=POST>n";
        migrate_across_request();
        echo "<input type=hidden name=step value=do_copy>n";
        echo "<input type=hidden name=next_step_number value=1>n";
        echo "<input type=hidden name=url2get value="".$_POST['url2get']."">n";
        echo "<table>n";
        /*
        echo "<tr><td colspan=2><i>Current Parameters</i></td></tr>n";
        echo "<tr><th>URL</th><td>$url2get</td></tr>n";
        echo "<tr><th>scheme</th><td>$components[scheme]</td></tr>n";
        echo "<tr><th>host</th><td>$components[host]</td></tr>n";
        echo "<tr><th>port</th><td>$components[port]</td></tr>n";
        echo "<tr><th>basic auth user</th><td>$components[user]</td></tr>n";
        echo "<tr><th>basic auth pass</th><td>$components[pass]</td></tr>n";
        echo "<tr><th>path</th><td>$components[path]</td></tr>n";
        echo "<tr><th>query</th><td>$components[query]</td></tr>n";
        echo "<tr><th>fragment</th><td>$components[fragment]</td></tr>n";
        echo "<tr><td colspan=2>&nbsp;</td></tr>n";      
        */
        
        echo "<tr><td colspan=2><i>Overridde Parameters</i></td></tr>n";  
        echo "<tr><th>scheme</th><td><input type=text name="request_values[scheme]" value="$components[scheme]" style="width:300px"></td></tr>n";
        echo "<tr><th>host</th><td><input type=text name="request_values[host]" value="$components[host]" style="width:300px"></td></tr>n";
        echo "<tr><th>port</th><td><input type=text name="request_values[port]" value="$components[port]" style="width:300px"></td></tr>n";
        echo "<tr><th>basic auth user</th><td><input type=text name="request_values[user]" value="$components[user]" style="width:300px"></td></tr>n";
        echo "<tr><th>basic auth pass</th><td><input type=text name="request_values[pass]" value="$components[pass]" style="width:300px"></td></tr>n";
        echo "<tr><th>path</th><td><input type=text name="request_values[path]" value="$components[path]" style="width:300px"></td></tr>n";
        echo "<tr><th>query</th><td><input type=text name="request_values[query]" value="$components[query]" style="width:300px"></td></tr>n";
        echo "<tr><th>fragment</th><td><input type=text name="request_values[fragment]" value="$components[fragment]" style="width:300px"></td></tr>n";
       
        echo "<tr><td colspan=2>&nbsp;</td></tr>n";      
        echo "<tr><td colspan=2><i>Save As</i></td></tr>n";
        echo "<tr><th>override file name</th><td><input type=radio name="override_filename" value="1" checked>Yes <input type=radio name="override_filename" value="0" checked>No </td></tr>n";        
        echo "<tr><th>file name</th><td><input type=text name="save_as_filename" value="".urldecode($url_filename)."" style="width:300px"></td></tr>n";        
        
        echo "<tr><td colspan=2>&nbsp;</td></tr>n";      
        echo "<tr><td colspan=2><i>Options</i></td></tr>n";        
        echo "<tr><th>overwrite file</th><td><input type=radio name="overwrite" value="1" checked>Yes <input type=radio name="overwrite" value="0" checked>No </td></tr>n";        
        echo "<tr><th>binary mode (Windows only)</th><td><input type=checkbox name="binary_mode" value="1" checked></td></tr>n";        
        echo "<tr><th>copy buffer size</th><td><input type=text name="buffer_size" value="".(1024*32)."" style="width:300px"></td></tr>n";                
        
        echo "<tr><td colspan=2>&nbsp;</td></tr>n";          
        echo "<tr><td colspan=2 align=center><input type="submit" name="submit" value="Copy"></td></tr>n";
        echo "</table>n";  
        echo "WARNING : next page could be long to show, depending of what you want to upload. But as far as it's permitted, set time limit is set to infinite and ignore_user_abort() is called. <b>So even if this page finished rendering, download may continue... It depends only of server configuration</b>n";
        break;
    }
    
    default:
    {
        print_step('Give URL of ressource you want to download');
        echo "<form action=execute.php method=POST>n";
        migrate_across_request();
        echo "<input type=hidden name=step value=show_parsed_url>n";
        echo "<input type=hidden name=next_step_number value=1>n";
        echo "<table>n";
        echo "<tr><th>Paste URL</th><td><input type="text" name="url2get" value="" style="width:300px"></td></tr>n";
        echo "<tr><td colspan=2 align=center><input type="submit" name="submit" value="Next"></td></tr>n";
        echo "</table>n";
    }
}

						