unit tests and base code

[ga4php.git] / lib / lib.php

diff --git a/lib/lib.php b/lib/lib.php
index dc10d56..883ccb9 100644 (file)
--- a/lib/lib.php
+++ b/lib/lib.php
@@ -1,4 +1,157 @@
 <?php
 
+class GoogleAuthenticator {
+       
+       // first we init google authenticator by passing it a filename
+       // for its sqlite database.
+       function __construct($file) {
+               if(file_exists($file)) {
+                       try {
+                               $this->dbConnector = new PDO("sqlite:$file");
+                       } catch(PDOException $exep) {
+                               $this->errorText = $exep->getMessage();
+                               $this->dbConnector = false;
+                       }                       
+               } else {
+                       setupDB();
+               }
+               
+               $this->dbFile = $file;
+       }
+       
+       // creates the database (tables);
+       function setupDB() {
+               try {
+                       $this->$dbConnector = new PDO("sqlite:$file");
+               } catch(PDOException $exep) {
+                       $this->errorText = $exep->getMessage();
+                       $this->dbConnector = false;
+               }                       
+       
+               // here we create some tables and stuff
+       }
+       
+       // creates "user" in the database and returns a url for
+       // the phone. If user already exists, this returns false
+       // if any error occurs, this returns false
+       function setupUser($username) {
+               $key = _createBase32Key();
+       }
+       
+       // Replcate "user" in the database... All this really
+       // does is to replace the key for the user. Returns false
+       // if the user doesnt exist of the key is poop
+       function replaceUser($username) {
+               
+       }
+       
+       // sets the key for a user - this is assuming you dont want
+       // to use one created by the application. returns false
+       // if the key is invalid or the user doesn't exist.
+       function setUserKey($username, $key) {
+               
+       }
+       
+       // self explanitory?
+       function deleteUser($username) {
+               
+       }
+       
+       // user has input their user name and some code, authenticate
+       // it
+       function authenticateUser($username, $code) {
+               
+       }
+       
+       // this function allows a user to resync their key. If too
+       // many codes are called, we only check up to 20 codes in the future
+       // so if the user is at 21, they'll always fail. 
+       function resyncCode($username, $code1, $code2) {
+                       
+       }
+       
+       // gets the error text associated with the last error
+       function getErrorText() {
+               return $this->errorText;
+       }
+       
+       // create a url compatibile with google authenticator.
+       function createURL($user, $key) {
+               $url = "otpauth://hotp/$user?secret=$key";
+               return $url;
+       }
+       
+       // creeates a base 32 key (random)
+       function createBase32Key() {
+               $alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+               $key = "";
+               for($i=0; $i<16; $i++) {
+                       $offset = rand(0,strlen($alphabet)-1);
+                       //echo "$i off is $offset\n";
+                       $key .= $alphabet[$offset];
+               }
+               
+               return $key;
+       }
+               
+       
+       function helperb322hex($b32) {
+        $alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
 
+        $out = "";
+        $dous = "";
+
+        for($i = 0; $i < strlen($b32); $i++) {
+                $in = strrpos($alphabet, $b32[$i]);
+                $b = str_pad(base_convert($in, 10, 2), 5, "0", STR_PAD_LEFT);
+                $out .= $b;
+                $dous .= $b.".";
+        }
+
+        $ar = str_split($out,20);
+
+        //echo "$dous, $b\n";
+
+        //print_r($ar);
+        $out2 = "";
+        foreach($ar as $val) {
+                $rv = str_pad(base_convert($val, 2, 16), 5, "0", STR_PAD_LEFT);
+                //echo "rv: $rv from $val\n";
+                $out2 .= $rv;
+
+        }
+        //echo "$out2\n";
+
+        return $out2;
+       }
+       
+       function helperhex2b32($hex) {
+        $alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+
+        $ar = str_split($hex, 5);
+
+        $out = "";
+        foreach($ar as $var) {
+                $bc = base_convert($var, 16, 2);
+                $bin = str_pad($bc, 20, "0", STR_PAD_LEFT);
+                $out .= $bin;
+                //echo "$bc was, $var is, $bin are\n";
+        }
+
+        $out2 = "";
+        $ar2 = str_split($out, 5);
+        foreach($ar2 as $var2) {
+                $bc = base_convert($var2, 2, 10);
+                $out2 .= $alphabet[$bc];
+        }
+
+        return $out2;
+       }
+       
+       
+       // some private data bits.
+       private $errorText;
+       private $dbFile;
+       private $dbConnector;
+}
 ?>
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