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<?php
/* ============================== Configuration settings ====================================== */

/* List of PCs that may be woken */
$config_network_data_array[] = array("name" => "Shane-EPC", "MAC" => "changed for security", "IP" => "changed for security", "WakeIP" =>
"changed for security");
$config_network_data_array[] = array("name" => "Demo", "MAC" => "changed for security", "IP" => "changed for security", "WakeIP" =>
"changed for security");
$config_network_data_array[] = array("name" => "Demo", "MAC" => "changed for security", "IP" => "changed for security", "WakeIP" =>
"changed for security");

// Port number where the computer is listening. Usually, any number between 1-50000 will do. Normally people choose 7 or 9.
$socket_number = "7";

$my_password = 'pass';
$my_username = 'user';

$html_title = '<H2>TrivisionZero PC Waker</H2>';

$config_table_columns = array('name', 'IP', 'MAC', 'links');

# The following function is copied (with some edits, to suppress output and return TRUE or an error message) from:
# http://www.hackernotcracker.com/2006-04/wol-wake-on-lan-tutorial-with-bonus-php-script.html

# Wake on LAN - (c) HotKey@spr.at, upgraded by Murzik
# Modified by Allan Barizo http://www.hackernotcracker.com

flush();

function WakeOnLan($addr, $mac,$socket_number) {

   $separator = ':';
   if (strstr ( $mac, '-' ) ) {
      $separator = '-';
   }
   $addr_byte = explode($separator, $mac);

   $hw_addr = '';
   for ($a=0; $a <6; $a++) $hw_addr .= chr(hexdec($addr_byte[$a]));
   $msg = chr(255).chr(255).chr(255).chr(255).chr(255).chr(255);
   for ($a = 1; $a <= 16; $a++) $msg .= $hw_addr;
   // send it to the broadcast address using UDP
   // SQL_BROADCAST option isn't help!!
   $s = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
   if ($s == false) {
//      echo "Error creating socket!n";
//      echo "Error code is '".socket_last_error($s)."' - " . socket_strerror(socket_last_error($s));
      return "Error creating socket!nError code is '".socket_last_error($s)."' - " . socket_strerror(socket_last_erro
($s));
//      return FALSE;
      }
   else {
      // setting a broadcast option to socket:
      $opt_ret = socket_set_option($s, 1, 6, TRUE);
      if($opt_ret <0) {
//         echo "setsockopt() failed, error: " . strerror($opt_ret) . "n";
         return "setsockopt() failed, error: " . strerror($opt_ret) . "n";
//         return FALSE;
         }
      if(socket_sendto($s, $msg, strlen($msg), 0, $addr, $socket_number)) {
//         echo "Magic Packet sent successfully!";
         socket_close($s);
         return TRUE;
         }
      else {
//         echo "Magic packet failed!";
         return "Magic packet failed!";
//         return FALSE;
         }
      }
   }

/* ============================== some predefined texts ====================================== */

$display_sent = 'Magic Packet sent successfully!';
$button_text = 'Wake!';
$button_text2 = 'Wake all selected';

//this is where I added my username part
$username_element = "<P>Username: <input type="text" name="username" />";
$password_element = "<P>Password: <input type="password" name="password" /><input type="submit" name="submit" value = "Login" />";


$table_html = "<TABLE border="2">n";
$logout_html = '';

/* ========================= Test for password protection ==================================== */
$wake_MAC_array = array();

if (!isset ($_POST['logout'])) {
   $input_password = $_POST['password'];
   $input_username = $_POST['username'];

}
//($my_password === '') is if you want no password
if (($input_password === $my_password) and ($input_username === $my_username)) {
   $logged_in = TRUE;
   $hidden_login = "<input type="hidden" name="password" value="$my_password"/>";
   if ($my_password !== '') {
      $logout_html = "n<P><input type="submit" name="logout" value="Log Out"/>n";
   }
   if ( (isset ($_POST['tickbox'])) and (is_array($_POST['tickbox']) ) ) {
      $checkbox_array = $_POST['tickbox'];
      foreach ($checkbox_array as $mac_address => $tickbox_setting) {
         $wake_MAC_array[$mac_address] = $tickbox_setting;
      }

   }

} else {
   $logged_in = FALSE;
   $hidden_login = '';
   $table_html_user = $username_element;
   $table_html = $password_element;
}

/* ================================ LOGGED-IN users only ===================================== */
/* ======================= construct table for listing of devices ============================ */

if ($logged_in == TRUE) {
   $table_row = "n<TR>";
   foreach ($config_table_columns as $key => $column_heading) {
      $table_row .= '<TD>' . $column_heading . '</TD>';
   }
   $table_row .= '<TD>Wake Up!</TD>';
   $table_row .= '<TD>status</TD>';
   $table_html .= $table_row . "</TR>n";
   foreach ($config_network_data_array as $device_key => $device_values) {
      $table_row = "n<TR>";
      $mac = $device_values['MAC'];
      $device_name = $device_values['name'];
      $status_cell = '<TD>&nbsp;</TD>';
      foreach ($config_table_columns as $key => $column_heading) {
         if (isset ( $device_values[$column_heading])) {
            $value = $device_values[$column_heading];
            if ($column_heading == 'MAC') {
/* special coding for MAC address column; prepare clickable button */
               $this_MAC = $value;
               $value = "<input type="submit" name="wake_MAC" value = "$value" />";

               if (( $_POST['wake_MAC'] === $this_MAC ) or (array_key_exists ($this_MAC,
$wake_MAC_array))) {
                  $status = WakeOnLan ($device_values['WakeIP'], $this_MAC, $socket_number) ;
                  if ( $status === TRUE ) {
                     $status = $display_sent;
                  }
                  $status_cell = "<TD>$status</TD>";
               }
            }
         } elseif ($column_heading == 'links') {
/* special coding for links column; prepare clickable links from $config_network_links_array */
            $value = '';
            if (isset ( $config_network_links_array[$device_name])) {
               foreach ($config_network_links_array[$device_name] as $link_title => $link_URL) {
                  if ( $value !== '') {
                     $value .= '<BR />';
                  }
                  $value .= '<A HREF="' . $link_URL . '">' . $link_title . '</A>';
               }
            }
         } else {
            $value = '';
         }
      if ($value === '') {
         $value = '&nbsp;';
      }
      $table_row .= '<TD>' . $value . '</TD>';
      }
/* now add a checkbox to wake up this device */
      $table_row .= '<TD>' . "<input type="checkbox" name="tickbox[$this_MAC]" />" . '</TD>';
/* now add the status message (if applicable) for the attempt to send a packet to this device */
      $table_row .= $status_cell;
      $table_html .= $table_row . "</TR>n";
   }
   $table_html .= "</TABLE>n";
   $table_html .= "<P><input type="submit" name="wake all" value = "$button_text2" />n";
}
/* =========================================================================================== */
/* ======================= Now output the html that we've built ============================== */

echo $html_title;

echo "<FORM name="input" action="" .$_SERVER['PHP_SELF'] . "" method="post">";
echo '<P>';
echo $table_html_user;
echo $table_html;
echo $hidden_login;
echo $logout_html;
echo "</FORM>n";

?>
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