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         header('WWW-Authenticate: Basic realm="GIT Repo"');
  41         header('HTTP/1.1 401 Unauthorized');
  42 }
  43
  44 // $levels is checked against $LOGIN_TYPE, levels can be either just "admin" or admin,user anon,user anon, etc.
  45 function gwvp_CheckAuthLevel($levels)
  46 {
  47         global $LOGIN_TYPE;
  48
  49         $spl = explode(",", $levels);
  50         foreach($spl as $levs) {
  51                 if($LOGIN_TYPE == $levs) {
  52                         return true;
  53                 }
  54         }
  55
  56         return false;
  57 }
  58
  59 function gwvp_AuthNoPerms()
  60 {
  61         gwvp_goMainPage("gwvp_AuthNoPermsBody");
  62 }
  63
  64 function gwvp_AuthNoPermsBody()
  65 {
  66         echo "You have no permissions for this page, do you need to login?";
  67 }
  68
  69 function gwvp_AuthHandleLogout()
  70 {
  71         global $BASE_URL;
  72
  73         unset($_SESSION["isloggedin"]);
  74         unset($_SESSION["username"]);
  75         unset($_SESSION["fullname"]);
  76         unset($_SESSION["usertype"]);
  77
  78         gwvp_SendMessage("info", "Logged out");
  79         header("Location: $BASE_URL");
  80 }
  81
  82 function gwvp_RegistrationCall()
  83 {
  84         if(gwvp_IsRegistrationEnabled()) {
  85                 gwvp_goMainPage("gwvp_RegistrationPageBody");
  86         } else {
  87                 gwvp_goMainPage("gwvp_RegistrationDisabledBody");
  88         }
  89 }
  90
  91 function gwvp_authUserPass($user, $pass)
  92 {
  93         $details = gwvp_getUser($user);
  94         if($details == false) {
  95                 return false;
  96         }
  97
  98         if(sha1($pass)!=$details["password"]) return false;
  99
 100         return $details["username"];
 101 }
 102
 103 function gwvp_AuthHandleLogin()
 104 {
 105         global $BASE_URL;
 106
 107         $user = "";
 108         $pass = "";
 109         if(isset($_REQUEST["username"])) $user = $_REQUEST["username"];
 110         if(isset($_REQUEST["password"])) $pass = $_REQUEST["password"];
 111
 112         if(gwvp_authUserPass($user, $pass) === false) {
 113                 gwvp_SendMessage("error", "Login Failed");
 114                 header("Location: $BASE_URL");
 115         } else {
 116                 $details = gwvp_getUser($user);
 117                 $_SESSION["isloggedin"] = true;
 118                 $_SESSION["username"] = "$user";
 119                 $_SESSION["fullname"] = $details["fullname"];
 120                 $_SESSION["id"] = $details["id"];
 121                 if(gwvp_IsUserAdmin($details["email"])) {
 122                         $_SESSION["usertype"] = "admin";
 123                 } else {
 124                         $_SESSION["usertype"] = "user";
 125                 }
 126                 gwvp_SendMessage("info", "Welcome, ".$details["fullname"]." you are logged in");
 127                 header("Location: $BASE_URL");
 128                 return true;
 129         }
 130
 131 }
 132
 133 function gwvp_RegistrationPageBody()
 134 {
 135         global $BASE_URL;
 136
 137         // TODO: registration page needs to be prettier - mostly the image for the captcha
 138
 139         ?>
 140 <form method="post" action="<?php echo $BASE_URL?>/register/try">
 141         <table>
 142                 <tr>
 143                         <td>Name</td>
 144                         <td><input name="name" type="text"></td>
 145                         <td>Your Full Name</td>
 146                         <td rowspan="4">
 147                                 <?php if(gwvp_haveCaptcha()) {?>
 148                                 <img id="captcha" src="<?php echo $BASE_URL?>/securimage/" alt="CAPTCHA Image" /><br>
 149                                 <input type="text" name="captcha_code" size="10" maxlength="6" />
 150                                 <a href="#" onclick="document.getElementById('captcha').src = '<?php echo $BASE_URL?>/securimage/' + Math.random(); return false">[ Different Image ]</a>
 151                                 <?php } ?>
 152                         </td>
 153                 </tr>
 154                 <tr>
 155                         <td>Email</td>
 156                         <td><input name="email" type="text"></td>
 157                         <td>Your Email Address</td>
 158                 </tr>
 159                 <tr>
 160                         <td>User Name</td>
 161                         <td><input name="username" type="text"></td>
 162                         <td>The Name Used to Refer to you on the site</td>
 163                 </tr>
 164
 165
 166                 <tr>
 167                         <td><input type="submit" name="register" value="Register"></td>
 168                 </tr>
 169         </table>
 170 </form>
 171         <?php
 172 }
 173
 174 function qwvp_attemptRegistration()
 175 {
 176         if(gwvp_haveCaptcha()) {
 177                 $securimage = new Securimage();
 178                 if ($securimage->check($_POST['captcha_code']) == false) {
 179                   // the code was incorrect
 180                   // you should handle the error so that the form processor doesn't continue
 181
 182                   // or you can use the following code if there is no validation or you do not know how
 183                   echo "The security code entered was incorrect.<br /><br />";
 184                   echo "Please go <a href='javascript:history.go(-1)'>back</a> and try again.";
 185                 } else {
 186                         echo "code was right";
 187                 }
 188
 189         }
 190 }
 191
 192 function gwvp_checkBasicAuthLogin()
 193 {
 194         $user = false;
 195         $pass = false;
 196         if(isset($_SERVER["PHP_AUTH_USER"])) {
 197                 $user = $_SERVER["PHP_AUTH_USER"];
 198         } else return false;
 199
 200         if(isset($_SERVER["PHP_AUTH_PW"])) {
 201                 $pass = $_SERVER["PHP_AUTH_PW"];
 202         } else return false;
 203
 204         error_log("passing basic auth for $user, $pass to backend");
 205         $auth = gwvp_authUserPass($user, $pass);
 206         if($auth !== false) {
 207                 error_log("auth passes");
 208         } else {
 209                 error_log("auth failes");
 210         }
 211
 212         return $auth;
 213 }
 214
 215 function gwvp_IsLoggedIn()
 216 {
 217         if(isset($_SESSION["isloggedin"])) {
 218                 if($_SESSION["isloggedin"]) {
 219                         return $_SESSION["username"];
 220                 } else return false;
 221         } else return false;
 222 }
 223
 224 function gwvp_SingleLineLoginForm()
 225 {
 226         global $BASE_URL;
 227
 228         echo "<form method=\"post\" action=\"$BASE_URL/login\">Username <input type=\"text\" name=\"username\" class=\"login\">";
 229         echo " Passowrd <input type=\"text\" name=\"password\" class=\"login\"><input type=\"submit\" name=\"login\" value=\"Login\" class=\"loginbutton\">";
 230         if(gwvp_IsRegistrationEnabled()) echo "<a href=\"$BASE_URL/register\">Register</a></form>";
 231         else echo "</form><br>";
 232 }
 233
 234
 235 function gwvp_IsRegistrationEnabled()
 236 {
 237         return true;
 238 }
 239
 240 // TODO translate info here
 241 function gwvp_GetFullName($login)
 242 {
 243         return $login;
 244 }
 245 ?>