gwvplib/gwvpauth.php

   1 <?php
   2
   3 // we call it 00aaa so it gets called first
   4 $CALL_ME_FUNCTIONS["00aaa"] = "gwvp_AuthCallMe";
   5
   6 function gwvp_AuthCallMe()
   7 {
   8         global $LOGIN_TYPE;
   9         session_start();
  10
  11         if(isset($_REQUEST["q"])) {
  12                 $query = explode("/", $_REQUEST["q"]);
  13                 if($query[0] == "login") return "gwvp_AuthHandleLogin";
  14                 if($query[0] == "logout") return "gwvp_AuthHandleLogout";
  15                 if($query[0] == "register") {
  16                         if(isset($query[1])) {
  17                                 return "qwvp_attemptRegistration";
  18                         }
  19                         return "gwvp_RegistrationCall";
  20                 }
  21         }
  22         $login = gwvp_isLoggedIn();
  23
  24         error_log("authcallme as $login");
  25         if($login!== false) {
  26                 if(gwvp_IsUserAdmin(null, $login)) {
  27                         $LOGIN_TYPE = "admin";
  28                 } else {
  29                         $LOGIN_TYPE = "user";
  30                 }
  31         } else {
  32                 $LOGIN_TYPE = "anon";
  33         }
  34
  35         return false;
  36 }
  37
  38 function gwvp_AskForBasicAuth()
  39 {
  40         if(!isset($_SERVER["PHP_AUTH_USER"])) {
  41                 header('WWW-Authenticate: Basic realm="My Realm"');
  42                 header('HTTP/1.0 401 Unauthorized');
  43                 exit(0);
  44         } else return;
  45 }
  46
  47 // $levels is checked against $LOGIN_TYPE, levels can be either just "admin" or admin,user anon,user anon, etc.
  48 function gwvp_CheckAuthLevel($levels)
  49 {
  50         global $LOGIN_TYPE;
  51
  52         $spl = explode(",", $levels);
  53         foreach($spl as $levs) {
  54                 if($LOGIN_TYPE == $levs) {
  55                         return true;
  56                 }
  57         }
  58
  59         return false;
  60 }
  61
  62 function gwvp_fourZeroThree()
  63 {
  64         header("HTTP/1.0 403 Permission Denied");
  65         exit(0);
  66 }
  67
  68 function gwvp_AuthNoPerms()
  69 {
  70         gwvp_goMainPage("gwvp_AuthNoPermsBody");
  71 }
  72
  73 function gwvp_AuthNoPermsBody()
  74 {
  75         echo "You have no permissions for this page, do you need to login?";
  76 }
  77
  78 function gwvp_AuthHandleLogout()
  79 {
  80         global $BASE_URL;
  81
  82         unset($_SESSION["isloggedin"]);
  83         unset($_SESSION["username"]);
  84         unset($_SESSION["fullname"]);
  85         unset($_SESSION["usertype"]);
  86
  87         gwvp_SendMessage("info", "Logged out");
  88         header("Location: $BASE_URL");
  89 }
  90
  91 function gwvp_RegistrationCall()
  92 {
  93         if(gwvp_IsRegistrationEnabled()) {
  94                 gwvp_goMainPage("gwvp_RegistrationPageBody");
  95         } else {
  96                 gwvp_goMainPage("gwvp_RegistrationDisabledBody");
  97         }
  98 }
  99
 100 function gwvp_authUserPass($user, $pass)
 101 {
 102         $details = gwvp_getUser($user);
 103         if($details == false) {
 104                 return false;
 105         }
 106
 107         if(sha1($pass)!=$details["password"]) return false;
 108
 109         return $details["username"];
 110 }
 111
 112 function gwvp_AuthHandleLogin()
 113 {
 114         global $BASE_URL;
 115
 116         $user = "";
 117         $pass = "";
 118         if(isset($_REQUEST["username"])) $user = $_REQUEST["username"];
 119         if(isset($_REQUEST["password"])) $pass = $_REQUEST["password"];
 120
 121         if(gwvp_authUserPass($user, $pass) === false) {
 122                 gwvp_SendMessage("error", "Login Failed");
 123                 header("Location: $BASE_URL");
 124         } else {
 125                 $details = gwvp_getUser($user);
 126                 $_SESSION["isloggedin"] = true;
 127                 $_SESSION["username"] = "$user";
 128                 $_SESSION["fullname"] = $details["fullname"];
 129                 $_SESSION["id"] = $details["id"];
 130                 if(gwvp_IsUserAdmin($details["email"])) {
 131                         $_SESSION["usertype"] = "admin";
 132                 } else {
 133                         $_SESSION["usertype"] = "user";
 134                 }
 135                 gwvp_SendMessage("info", "Welcome, ".$details["fullname"]." you are logged in");
 136                 header("Location: $BASE_URL");
 137                 return true;
 138         }
 139
 140 }
 141
 142 function gwvp_RegistrationPageBody()
 143 {
 144         global $BASE_URL;
 145
 146         // TODO: registration page needs to be prettier - mostly the image for the captcha
 147
 148         ?>
 149 <form method="post" action="<?php echo $BASE_URL?>/register/try">
 150         <table>
 151                 <tr>
 152                         <td>Name</td>
 153                         <td><input name="name" type="text"></td>
 154                         <td>Your Full Name</td>
 155                         <td rowspan="4">
 156                                 <?php if(gwvp_haveCaptcha()) {?>
 157                                 <img id="captcha" src="<?php echo $BASE_URL?>/securimage/" alt="CAPTCHA Image" /><br>
 158                                 <input type="text" name="captcha_code" size="10" maxlength="6" />
 159                                 <a href="#" onclick="document.getElementById('captcha').src = '<?php echo $BASE_URL?>/securimage/' + Math.random(); return false">[ Different Image ]</a>
 160                                 <?php } ?>
 161                         </td>
 162                 </tr>
 163                 <tr>
 164                         <td>Email</td>
 165                         <td><input name="email" type="text"></td>
 166                         <td>Your Email Address</td>
 167                 </tr>
 168                 <tr>
 169                         <td>User Name</td>
 170                         <td><input name="username" type="text"></td>
 171                         <td>The Name Used to Refer to you on the site</td>
 172                 </tr>
 173
 174
 175                 <tr>
 176                         <td><input type="submit" name="register" value="Register"></td>
 177                 </tr>
 178         </table>
 179 </form>
 180         <?php
 181 }
 182
 183 function qwvp_attemptRegistration()
 184 {
 185         if(gwvp_haveCaptcha()) {
 186                 $securimage = new Securimage();
 187                 if ($securimage->check($_POST['captcha_code']) == false) {
 188                   // the code was incorrect
 189                   // you should handle the error so that the form processor doesn't continue
 190
 191                   // or you can use the following code if there is no validation or you do not know how
 192                   echo "The security code entered was incorrect.<br /><br />";
 193                   echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
 194                 } else {
 195                         echo "code was right";
 196                 }
 197
 198         }
 199 }
 200
 201 function gwvp_checkBasicAuthLogin()
 202 {
 203         $user = false;
 204         $pass = false;
 205         if(isset($_SERVER["PHP_AUTH_USER"])) {
 206                 $user = $_SERVER["PHP_AUTH_USER"];
 207         } else return false;
 208
 209         if(isset($_SERVER["PHP_AUTH_PW"])) {
 210                 $pass = $_SERVER["PHP_AUTH_PW"];
 211         } else return false;
 212
 213         return gwvp_authUserPass($user, $pass);
 214 }
 215
 216 function gwvp_IsLoggedIn()
 217 {
 218         if(isset($_SESSION["isloggedin"])) {
 219                 if($_SESSION["isloggedin"]) {
 220                         return $_SESSION["username"];
 221                 } else return false;
 222         } else return false;
 223 }
 224
 225 function gwvp_SingleLineLoginForm()
 226 {
 227         global $BASE_URL;
 228
 229         echo "<form method=\"post\" action=\"$BASE_URL/login\">Username <input type=\"text\" name=\"username\" class=\"login\">";
 230         echo " Passowrd <input type=\"text\" name=\"password\" class=\"login\"><input type=\"submit\" name=\"login\" value=\"Login\" class=\"loginbutton\">";
 231         if(gwvp_IsRegistrationEnabled()) echo "<a href=\"$BASE_URL/register\">Register</a></form>";
 232         else echo "</form><br>";
 233 }
 234
 235
 236 function gwvp_IsRegistrationEnabled()
 237 {
 238         return true;
 239 }
 240
 241 // TODO translate info here
 242 function gwvp_GetFullName($login)
 243 {
 244         return $login;
 245 }
 246 ?>