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User Exists?
by: Seann Alexander
|
May 1, 2001
Version: .1
Type: Class
Category: Other
License: GNU General Public License
Description: Checks to see if a username exists, and if it does-- it prints out the information of the user. Web/Console version
<?php
//GPL -=- Seann Alexander <meyowith@home.com>
//If you have not received a copy, please visit: http://www.gnu.org/copyleft/gpl.txt
class CheckUsers {
VAR $console = "True"; //Set $console to false to enable web based version. (enabled by default)
VAR $fp = "";
VAR $file = "/etc/passwd";
VAR $rights = "r";
VAR $biginfo = "";
Function OpenFile($username_IN) {
$this->fp = fopen($this->file, $this->rights);
while (!feof($this->fp)){
$this->BigInfo .= $this->ReadFile();
}
if (!($temp = stristr($this->BigInfo, $username_IN)) == "") {
$tok = strtok ($temp,":");
echo "Username: $tok\n";
$tok = strtok (":");
echo "Password: $tok\n";
$tok = strtok (":");
echo "User ID: $tok\n";
$tok = strtok (":");
echo "Group ID: $tok\n";
$tok = strtok (":");
echo "Group Name: $tok\n";
$tok = strtok (":");
echo "User Obviously Exists.\n";
} else {
echo "False! User not Found!!\n";
}
$tok = "";
$temp = "";
return $this->fp;
}
Function CloseFile(){
fclose($this->fp);
return 0;
}
Function ReadFile() {
$this->ANSWER = fgets($this->fp,2);
return $this->ANSWER;
}
Function UserExists($username_IN) {
$this->OpenFile($username_IN);
$this->Closefile();
return $this->ANSWER;
}
Function GetUserName() {
if ($this->console == "True") {
echo "Enter users name: ";
$info_IN = fopen("/dev/stdin","r");
// while (!feof($info_IN)) {
$IN = fgets($info_IN, 1024);
// $IN = fgetc($info_IN);
// if ($IN == "n"){
// echo "Your Name Is " . chop($IN) . "\n";
// }
// }
fclose($info_IN);
$ret_VAL = chop($IN);
} else {
$ret_val = $uwn;
}
return $ret_VAL;
}
//End Of Class
}
$CU_Class = new CheckUsers;
// $CU_Class->GetUserName();
// $CU_Class->UserExists(root);
$CU_Class->UserExists($CU_Class->GetUserName());
//Should be easily modifyed to check from a webpage via the following line instead:
//$CU_Class->UserExists($uwn);
//
//eg: http://localhost/~page/checkusers.php?uwn=root
//That Magic Vars has to be enabled (should be by default)
echo "\n";
?>
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