action.php

<?php
error_reporting(-1);
ini_set('display_errors', 'true');

// include common.inc.php
include 'core/common.inc.php';
// get what action user is here for
$action = $_GET['action'];

// if user is here to sign in to their account
if ($action == 'sign_in') {
  // protect from users already logged in
  protect();

  // show navbar & set page title to 'Log In to account'
  showHeader('Sign In to account');

  // show loginModule for user to sign in to
  loginModule();
}

// if user is here to logout to their account
if ($action == 'logout') {
  // hide all errors
  //error_reporting(0);

  // set page title to 'logout' & show navbar
  showHeader('logout');

  // protect from users that aren't already logged in...
  protect2();

  // destroy session (log out)
  session_destroy();

  // notify user logout was successful
  echo '<p class="success">logout successful</p>';
  echo '<p class="info">If you have not been redirected, try to <a href="index.php">refresh</a> your page.</p>';

  // redirect user to homepage & exit();
  redirect('index.php');
}

if ($action == "register_account") {
  echo '<br>Line: ' .__LINE__; die;
  // hide all errors
  //error_reporting(0);

  // show navbar and set title to 'Register Account'
  showHeader('Register Account');

  // protect page from users that are already logged in
  protect();

  // include function to make sure registration form checks for errors
  function checkRegisterErrors() {
    if(isset($_POST['submit_registration'])){
        require 'core/findConflict.php';
        $username = $_POST['username'];
        $password = $_POST['password'];
        $cpassword = $_POST['cpassword'];
        $email = $_POST['email'];
        $hash = password_hash($password, PASSWORD_DEFAULT);
        $query = dbConnect()->prepare("SELECT email, username FROM users WHERE username = :username OR email = :email");
        $query->bindParam(':username', $username);
        $query->bindParam(':email', $email);
        $query->execute();
        $conflictingItems = [];
        while ( $result = $query->fetch( PDO::FETCH_ASSOC ) ) {
            $conflictingItems[] = $result;
        }
        // for checking checkGoogleCaptcha() function!!
        require_once 'core/recaptchalib.php';
        if(isset($_POST['g-recaptcha-response']))
        $captcha = $_POST['g-recaptcha-response'];
        $response = json_decode(file_get_contents("https://www.google.com/recaptcha/api/siteverify?secret=6Levrg4TAAAAAFmjcgKW8kDakmXTiBhmiCnUMchD&response=".$captcha."&remoteip=".$_SERVER['REMOTE_ADDR']), true);

        if ( count ($conflictingItems) == 1 ) {
          switch ( getConflict($conflictingItems, $username, $email) ) {
              case 1:
              // username conflict
              echo "<p class='error'>username taken</p>";
              break;
              case 2:
              // Email conflict
              echo "<p class='error'>email already in use</p>";
              break;
              case 3:
              // email & username conflict
              echo '<p class="error">username & email in use</p>';
              break;
          }
        } elseif ( count($conflictingItems) == 2 ) {
          echo 'username & email already in use';

        // check if passwords match!
        } elseif ($password != $cpassword) {
          echo '<p class="error">passwords do not match</p>';

        // make sure password is between 8 - 16 characters
        } elseif (strlen($password) < 8 OR strlen($password) > 16) {
          echo '<p class="error">password must be between 8 & 16 characters</p>';

        // checks to make sure google recaptcha was posted!
        } elseif (!$captcha) {
          echo '<p class="error">please complete the captcha</p>';
        } elseif($response['success'] == false) {
          echo '<p class="error">you are a robot</p>';


        } else {
          // require config.php to get maximum file size --> $maximum_avatar_file_size = '125000';
          //                    to get avatars directory --> $avatars_directory = 'includes/uploads/avatars';
          require 'core/config.php';

          // need for file upload query & query to insert fields into database..
          $activation_id = uniqid(true);

          // file upload stuff... ONLY NEEDED FOR TESTING PURPOSES!
          // var_dump($_FILES);

          // move uploaded file to directory (includes/uploads/avatar)
          $upload_directory = $avatars_directory;
          // sets $image & gets image type, name, tmp_name
          $image = $_FILES['avatar'];
          $image_name = $_FILES['avatar']['name'];
          $image_tmp_name = $_FILES['avatar']['tmp_name'];
          $image_size = $_FILES['avatar']['size'];
          $image_type = $_FILES['avatar']['type'];

          // set file name (make it unique)
          $file_name = $activation_id . $image_name;

          // finds extension of file uploaded...
          $image_extension = strtolower(pathinfo($_FILES['avatar']['name'],PATHINFO_EXTENSION));
          // allowed extensions of file uploaded...
          $valid_image_extensions = array('jpeg', 'jpg', 'png', 'gif');

          // if image extension is a valid image extension...
          if (in_array($image_extension, $valid_image_extensions)) {
            if ($image_size > $maximum_avatar_file_size) {
              echo '<p class="error">error; file size is too large! Maximum file size is ' .$maximum_avatar_file_size. ' bytes. <a href="action.php?action=register_account">Retry Registration</a></p>';
            } else {
              // move the file to desired directory ($upload_directory)
              move_uploaded_file($image_tmp_name, "$upload_directory/$file_name");
            }
          }


          // query to insert fields into database...
          //$activation_id = uniqid(true);
          $query = dbConnect()->prepare("INSERT INTO users (username, password, email, activated, activation_id, avatar) VALUES (:username, :password, :email, :activated, :activation_id, :avatar)");
          $query->bindParam(':username', $username);
          $query->bindParam(':email', $email);
          $query->bindParam(':password', $hash);
          $query->bindValue(':activated', "0");
          $query->bindValue(':activation_id', $activation_id);
          $query->bindValue(':avatar', $file_name);
          $query->execute();

          // set variables for optional fields...
          $firstName = $_POST['first_name'];
          $lastName = $_POST['last_name'];
          $birthday = $_POST['birthday'];
          $steam_profile = $_POST['steam_profile'];
          $twitter_profile = $_POST['twitter_profile'];
          $facebook_profile = $_POST['facebook_profile'];
          $instagram_profile = $_POST['instagram_profile'];

          // update user_details database
          $query2 = dbConnect()->prepare("INSERT INTO user_details (first_name, last_name, birthday, steam_profile, twitter_profile, facebook_profile, instagram_profile) VALUES (:firstName, :lastName, :birthday, :steam, :twitter, :facebook, :instagram)");
          $query2->bindParam(':firstName', $firstName);
          $query2->bindParam(':lastName', $lastName);
          $query2->bindParam(':birthday', $birthday);
          $query2->bindParam(':steam', $steam_profile);
          $query2->bindParam(':twitter', $twitter_profile);
          $query2->bindParam(':facebook', $facebook_profile);
          $query2->bindParam(':instagram', $instagram_profile);
          $query2->execute();

          // query to add image name to database to echo later on...
          /*
          $add_image_to_database = dbConnect()->prepare("INSERT INTO users (avatar) VALUES (:avatar)");
          $add_image_to_database->bindParam(':avatar', $file_name);
          $add_image_to_database->execute();
          */

          // send email verification
          require 'core/config.php';
          $subject = $url . 'Registration Confirmation';
          $link = 'http://' . $url. "/activate.php?activation_id=" . $activation_id;
          $message = 'Thanks for registering with us! Please verify your account at' . $link . ' so you can login.';
          $headers = 'From: ' .$contact_email;
          mail($email/* <-- Who its being sent to */, $subject, $message, $headers);
          echo '<p class="info">registration successful, please verify email before logging in.</p>';

          header('refresh:5;url=index.php');

          echo '<p class="info">if you are not redirected, try to <a href="index.php">refresh</a> your page.</p>';
        }
    }
  }

  // echo registration form
  echo '
  <center>
    <form enctype="multipart/form-data" action="" method="post" class="register_module">

      <h2 style="text-align:left;font-family:"Roboto",sans-serif;">Account Credentials<span style="font-size:12px;font-weight:400;"> (required)</span></h2>

      <div class="account_credentials">
        <input class="register_module protect_from_spaces" type="text" name="username" placeholder="choose a username*" maxlength="30" required><br />
        <input class="register_module protect_from_spaces" type="email" name="email" placeholder="email address*" required><br />

        <div class="row_inline">
          <input class="register_module input protect_from_spaces" type="password" name="password" placeholder="password*" maxlength="18" required>
          <input class="register_module input protect_from_spaces" type="password" name="cpassword" placeholder="confirm password*" maxlength="18" required><br />
        </div>
      </div>
        <br />

        <!-- here add user details section (name, avatar, birthday, etc...) -->
        <h2 style="text-align:left;font-family:"Roboto",sans-serif;">Account Details<span style="font-size:12px;font-weight:400;"> (optional)</span></h2>

        <br />
        <div class="account_details">
          <p style="text-align:left;font-family:"Roboto",sans-serif;font-weight:400;">Name:<span style="font-size:12px;font-weight:400;"> (required)</span></p>
          <input class="register_module_short protect_from_spaces" style="margin-right:1%;" type="text" name="first_name" placeholder="first name*" required />
          <input class="register_module_short protect_from_spaces" type="text" name="last_name" placeholder="last name" />

          <p style="text-align:left;font-family:"Roboto",sans-serif;font-weight:400;">Birthday:</p>
          <input style="margin-top:-10px;" class="register_module protect_from_spaces" type="date" name="birthday" />

          <p style="text-align:left;font-family:"Roboto",sans-serif;font-weight:400;">Social Link(s):</p>
          <input class="register_module protect_from_spaces" type="text" style="margin-top:-10px;" type="url" name="steam_profile" placeholder="steam profile (http://www.steamcommunity.com/id/lowheartrate/)" />
          <input class="register_module protect_from_spaces" type="text" name="twitter_profile" placeholder="twitter profile (https://twitter.com/lowheartrate)" />
          <input class="register_module protect_from_spaces" type="text" name="facebook_profile" placeholder="facebook profile (https://www.facebook.com/officiallowheartrate)" />
          <input class="register_module protect_from_spaces" type="text" name="instagram_profile" placeholder="instagram profile (https://instagram.com/lowheartrate)" />

          <!-- image upload for avatar... -->
          <div class="image_uploader">
            <h2 style="text-align:left;font-family:"Roboto",sans-serif;">✌ Avatar Uploader</h2><br />

            <p style="margin-top:-20px;font-size:12px;text-align:left;">Select image to upload:</p>
            <div style="text-align:left;font-size:12px;margin-top:-5px;margin-bottom:25px;">
              <input type="file" name="avatar" class="" />
            </div>
          </div>
        </div>

        <!-- check errors in registration -->
  ';
  checkRegisterErrors();
  echo '

        <br />
        <p class="pull-left" style="max-width:50%;">by signing up, you agree to our <a href="#">terms</a> and that you have read our <a href="#">privacy policy</a> and <a href="#">content policy</a>.</p>
        <div class="g-recaptcha pull-right" data-sitekey="6Levrg4TAAAAAN-pL6Xl2tndj3ZDn5nJ3PRUhMV-"></div><br />

        <br />

        <button type="submit" name="submit_registration" class="btn-register" style="margin-top:10px;">sign up</button>
    </form>
  </center>
  ';
}

// if user is here to active account...
if ($action == 'verify_email') {
  // if user is logged in - protect page
  protect();

  // show header
  showHeader('Verify Email');

  // get the activation id from url
  $activationID = $_GET['activation_id'];

  // update the users activated to '1'
  $sql = "UPDATE users SET activated = :activated WHERE activation_id = :activation_id";
  $activate = dbConnect()->prepare($sql);
  $activate->bindValue(':activated', '1');
  $activate->bindParam(':activation_id', $activationID);
  $activate->execute();

  // echo success message & redirect user
  echo '<p class="success">Your email has been validated successfully!</p>';
  redirect('index.php');
}

// if user is here because they forgot their password...
if ($action == 'forgot_password') {
  // protect from users already logged in
  protect();

  // set page title to 'Forgot Password' & show header(navbar)
  showHeader('Forgot Password');

  // get current time
  date_default_timezone_set('America/New_York');
  $current_time = date('YmdHis');

  // if user hasn't submitted form with email:
  if(!isset($_POST['email'])) {
    // echo form to submit email for password reset link
    echo '
    <form method="post">
      <input type="hidden" name="resetpw_date" placeholder="Current date/time: ' .$current_time. '" />
      <input type="email" name="email" placeholder="email address" required /><br />
      <button class="btn btn-primary" type="submit" value="reset password">Reset Password</button>
    </form>
    ';

    // if user has submitted $_POST['email']
  } else {

    // random string from http://php.net/manual/en/function.openssl-random-pseudo-bytes.php
    for ($i = -1; $i <= 10; $i++) {
      $pwreset_code = openssl_random_pseudo_bytes($i, $cstrong);
      $pwresetcode = bin2hex($pwreset_code);
    }

    // set variable for $_POST['email']
    $email = $_POST['email'];

    // require config.php for email
    require_once 'core/config.php';

    // tell user email has been sent if email exists in database
    echo '<p class="info">If an account is registered with email: ' .$email. ', an email has been sent to reset the password.</p>';

    // send email to $email
    $msg = "<p>You are receiving this email because you requested your password to be reset, if you didn't you can ignore this email. <br />Follow the link below to reset your password.</p>";
    $msg .= "<p><a href='http://" .$url. "/reset_password.php?uid=" .$pwresetcode. "'>Reset password</a><br />Thank you</p>";
    $msg = wordwrap($msg,70);
    $headers = "MIME-Version: 1.0" . "\r\n";
    $headers .= "Content-type:text/html;charset=UTF-8" . "\r\n";
    mail($email, "PASSWORD RESET", $msg, $headers);

    // update resetpw_id and resetpw_date fields in database
    try {
      // insert $pwresetcode into resetpw_code in db where email = email submitted...
      $email = $_POST['email'];
      $pwresetcode = bin2hex($pwreset_code);
      $pwcodedb = dbConnect()->prepare("UPDATE users SET resetpw_id = :pwresetcode, resetpw_date = :currentTime WHERE email = :email");
      $pwcodedb->bindParam(':email', $email);
      $pwcodedb->bindParam(':pwresetcode', $pwresetcode);
      $pwcodedb->bindParam(':currentTime', $current_time);
      $pwcodedb->execute();
    } catch(PDOException $e) {
      echo $pwcodedb . '<br />' . $e->getMessage();
    }

  }
}

// if user is here to reset their password
if ($action == 'reset_password') {
  // report all errors
  //error_reporting(E_ALL);

  // set page title to 'Update Password' & include navbar
  showHeader('Update Password');

  // get uid from url
  $uid = $_GET['uid'];

  // protect page from users that are already logged in
  protect();

  // show form to user
  echo '
  <form method="POST">
    <input type="hidden" placeholder="your uid is <?php echo $uid; ?>" name="uid" class="input2" readonly required />
    <input type="password" placeholder="new password" name="newPassword" class="input" required />
    <input type="password" placeholder="confirm new password" name="confirmNewPassword" class="input" required />
    <br />
    <button type="submit" class="btn btn-primary">change password</button>
  </form>
  ';

  // set timezone
  date_default_timezone_set('America/New_York');

  // select the date user request pw reset
  $fetch_time =  dbConnect()->prepare("SELECT resetpw_date FROM users WHERE resetpw_id = :uid");
  $fetch_time->bindParam(':uid', $uid);
  $fetch_time->execute();

  // ..
  while($row = $fetch_time->fetch(PDO::FETCH_ASSOC)) {
    //$stored_username = $row['username'];
    $stored_resetpw_date = $row['resetpw_date'];
    $resetpw_date = new DateTime($stored_resetpw_date);
    $resetpw_date->format('YmdHis');
  }

  // date_time RIGHT NOW!
  $timeRightNow = date('YmdHis');

  // Difference between $stored_resetpw_date and $current_time
  $currentTime = strtotime($timeRightNow);
  $requestedPwDate = strtotime($stored_resetpw_date);
  $diff = ($currentTime - $requestedPwDate) / 60;

  // if users submits form with new password and confirm password filled out
  if (isset($_POST['newPassword'], $_POST['confirmNewPassword'])) {
  $newPassword = $_POST['newPassword'];
  $confirmNewPassword = $_POST['confirmNewPassword'];
  // if they posted their UID, new password, and confirm new password...
  $sql = "SELECT email, username, password FROM users WHERE resetpw_id = :uid";
  $reset_pw_db_select=dbConnect()->prepare($sql);
  $reset_pw_db_select->bindParam(':uid', $uid);
  $reset_pw_db_select->execute();

    // if passwords don't match give user error
    if ($newPassword != $confirmNewPassword) {
      echo '<p class="error pull-right">passwords do not match</p>';

    // if passwords are less then 8 characters give user error
    } elseif (strlen($newPassword) < 8) {
      echo '<p class="error pull-right">passwords must be at least 8 characters</p>';

    // if user requested pw reset more then 15 minutes ago...
    } elseif ($diff > 15) {
      echo '<p class="error pull-right">reset uid has expired</p>';

    // if no errors, update passwords in db to one's posted
    } else {
      $hashed_password = password_hash($newPassword, PASSWORD_DEFAULT);
      $reset_pw_db=dbConnect()->prepare("UPDATE users SET password = '$hashed_password' WHERE resetpw_id = '$uid'");
      //echo $hashed_password;
      $reset_pw_db->execute();
      // provide success message and redirect to homepage
      echo '<p class="success pull-right">password reset successfully!</p>';
      redirect('index.php');
    }
  }
}

// if user is here to edit preferences of their account...
if ($action == 'edit_account') {
  // set page title to 'Edit Account' & show navbar
  showHeader('Edit Account');

  // protect page from users that are not logged in...
  protect2();

  echo '<p class="error">function currently unavailable, sorry.</p>';
}