Postfixadmin forgot the password after the Change password method detailed _php example

The example in this article describes the modified password method after postfixadmin forgot the password. Share to everyone for your reference, specific as follows:

Postfix admin is a web-based Postfix mail delivery Server management tool that can directly manage Postfix virtual domain names and users.

Because there is a period of time did not use postfixadmin additions and deletions users, suddenly need to use when forget the management password, the way to use the foreigner directly in the database to modify the password, after the successful login

PHP Source:

<?php Echo md5crypt ("New password"); Md5crypt//action:creates MD5 encrypted password//call:md5crypt (string cleartextpassword) function Md5crypt ($PW,
  $salt = "", $magic = "") {$MAGIC = "$1$";
  if ($magic = = "") {$magic = $MAGIC;
  } if ($salt = = "") {$salt = Create_salt ();
  } $slist = Explode ("$", $salt);
  if (isset ($slist [0]) && $slist [0] = = "1") {$salt = $slist [1];
  $salt = substr ($salt, 0, 8);
  $ctx = $pw. $magic. $salt;
  $final = Hex2bin (MD5 ($PW. $salt. $pw));
    for ($i = strlen ($PW); $i > 0; $i-= {if ($i >) {$ctx. = substr ($final, 0,16);
    else {$ctx. = substr ($final, 0, $i);
  }} $i = strlen ($PW);
    while ($i > 0) {if ($i & 1) {$ctx. = chr (0);
    else {$ctx. = $PW [0];
  $i = $i >> 1;
  } $final = Hex2bin (MD5 ($CTX));
    For ($i =0 $i <1000; $i + +) {$ctx 1 = "";
    if ($i & 1) {$ctx 1. = $PW; } ELSE {$CTX 1. = substr ($final, 0,16);
    } if ($i% 3) {$ctx 1. = $salt;
    } if ($i% 7) {$ctx 1. = $PW;
    } if ($i & 1) {$ctx 1. = substr ($final, 0, 16);
    else {$ctx 1. = $PW;
  } $final = Hex2bin (MD5 ($ctx 1));
  } $passwd = ""; $passwd. = To64 ((ord ($final [0]) << 16) | (Ord ($final [6]) << 8) |
  (Ord ($final [12]))), 4); $passwd. = To64 ((Ord ($final [1]) << 16) | (Ord ($final [7]) << 8) |
  (Ord ($final [13]))), 4); $passwd. = To64 ((Ord ($final [2]) << 16) | (Ord ($final [8]) << 8) |
  (Ord ($final [14]))), 4); $passwd. = To64 ((Ord ($final [3]) << 16) | (Ord ($final [9]) << 8) |
  (Ord ($final [15]))), 4); $passwd. = To64 ((Ord ($final [4]) << 16) | (Ord ($final [ten]) << 8) |
  (Ord ($final [5]))), 4);
  $passwd. = To64 (Ord ($final [11]), 2); Return $magic. $salt. '
$ '. $passwd;
  function Create_salt () {srand (double) microtime () * 1000000); Return substr (MD5 ranD (0,9999999)), 0, 8); }//PHP around 5.3.8 includes hex2bin as native Function-http://php.net/hex2bin function Hex2bin ($str) {$len = str
    Len ($STR);
    $nstr = "";
      for ($i = 0; $i < $len; $i + + 2) {$num = sscanf (substr ($str, $i, 2), "%x");
    $nstr. = Chr ($num [0]);
return $nstr;
  function To64 ($v, $n) {$ITOA = "./0123456789abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz";
  $ret = "";
    while (($n-1) >= 0) {$n-;
    $ret. = $ITOA 64[$v & 0x3f];
  $v = $v >> 6;
return $ret;

 }

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