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