PHP usernameExists函数代码示例

function clearUser()
{
    if (isset($_POST['user']) && $_POST['user'] !== null && $_POST['user'] !== '') {
        $username = $_POST['user'];
        // lookup userid from db
        //echo "received Username: " . $username;
        if (isset($_POST['pass']) && $_POST['pass'] !== "") {
            // if user/password exists, check it, otherwise add new user
            if (usernameExists($username)) {
                $userId = getUserId($username);
                $pass = getPass($userId);
                // get pass from db
                if ($_POST['pass'] === $pass) {
                    return "user cleared.";
                } else {
                    return "invalid combination.";
                }
            } else {
                if (addUser($username, $_POST['pass'])) {
                    return "user cleared.";
                } else {
                    return "error creating new user.";
                }
            }
        } else {
            return "password cannot be empty.";
        }
    } else {
        return "username cannot be empty.";
    }
}

 function __construct($user, $display, $pass, $email, $colist, $contact)
 {
     //Used for display only
     $this->displayname = $display;
     //Sanitize
     $this->clean_email = sanitize($email);
     $this->clean_password = trim($pass);
     $this->username = sanitize($user);
     $this->colist_agent = $colist;
     $this->contact_person = $contact;
     if (usernameExists($this->username)) {
         $this->username_taken = true;
     } else {
         if (displayNameExists($this->displayname)) {
             $this->displayname_taken = true;
         } else {
             if (emailExists($this->clean_email)) {
                 $this->email_taken = true;
             } else {
                 //No problems have been found.
                 $this->status = true;
             }
         }
     }
 }

function login($username, $password, $ref)
{
    //A function that attempts to login the user (set the session variables), and if it fails, it'll
    //throw errors as an echo;
    global $root;
    $responseArray = array("ref" => $ref, "userErrorMsg" => "", "loginStatus" => false);
    $userData = fetchJSON($root . "/users.json");
    if (usernameExists($username)) {
        for ($i = 0; $i < count($userData); $i++) {
            if ($userData[$i]->username === $username && $userData[$i]->password === $password) {
                $_SESSION["loggedIn"] = true;
                $_SESSION["username"] = $username;
                $_SESSION["userID"] = $userData[$i]->id;
                $responseArray["loginStatus"] = true;
                break;
            }
            if ($i === count($userData) - 1) {
                $responseArray["userErrorMsg"] = "Incorrect password!";
                $responseArray["loginStatus"] = false;
                break;
            }
        }
    } else {
        $responseArray["userErrorMsg"] = "That username doesn't exist!";
        $responseArray["loginStatus"] = false;
    }
    return $responseArray;
}

 function __construct($user, $display, $pass, $email, $pin, $location, $about)
 {
     //Used for display only
     $this->displayname = $display;
     //Sanitize
     $this->clean_email = sanitize($email);
     $this->clean_password = trim($pass);
     $this->username = sanitize($user);
     $this->clean_pin = trim($pin);
     $this->location = trim($location);
     $this->about = trim($about);
     if (usernameExists($this->username)) {
         $this->username_taken = true;
     } else {
         if (displayNameExists($this->displayname)) {
             $this->displayname_taken = true;
         } else {
             if (emailExists($this->clean_email)) {
                 $this->email_taken = true;
             } else {
                 //No problems have been found.
                 $this->status = true;
             }
         }
     }
 }

 function __construct($user, $display, $pass, $email, $country, $state, $city, $address, $zip, $phone)
 {
     //Used for display only
     $this->displayname = $display;
     //Sanitize
     $this->clean_email = sanitize($email);
     $this->clean_password = trim($pass);
     $this->username = sanitize($user);
     $this->user_country = sanitize($country);
     $this->user_state = sanitize($state);
     $this->user_city = sanitize($city);
     $this->user_address = sanitize($address);
     $this->user_zip = sanitize($zip);
     $this->user_phone = sanitize($phone);
     if (usernameExists($this->username)) {
         $this->username_taken = true;
     } else {
         if (displayNameExists($this->displayname)) {
             $this->displayname_taken = true;
         } else {
             if (emailExists($this->clean_email)) {
                 $this->email_taken = true;
             } else {
                 //No problems have been found.
                 $this->status = true;
             }
         }
     }
 }

 public function validate_username($value)
 {
     if (minMaxRange(4, 16, $value)) {
         $this->set_specific_error('username', lang("ACCOUNT_USER_CHAR_LIMIT", array(4, 16)));
     } else {
         if (usernameExists($value)) {
             $this->set_specific_error('username', lang("ACCOUNT_USERNAME_IN_USE", array($value)));
         }
     }
 }

function validateUserName($username, $conn)
{
    $erroList = [];
    if (usernameExists($username, $conn)) {
        array_push($erroList, "Username already exists");
    }
    if (strlen($username) == 0) {
        array_push($erroList, "Please supply username");
    }
    return $erroList;
}

 function __construct($user, $pass, $email, $group_id = 2)
 {
     //Used for display only
     $this->unclean_username = $user;
     //Sanitize
     $this->clean_email = sanitize($email);
     $this->clean_password = trim($pass);
     $this->group_id = trim($group_id);
     $this->clean_username = sanitize($user);
     if (usernameExists($this->clean_username)) {
         $this->username_taken = true;
     } elseif (emailExists($this->clean_email)) {
         $this->email_taken = true;
     } else {
         //No problems have been found.
         $this->status = true;
     }
 }

function CorrectUserInputs($userDetails)
{
    $nameRegex = '/^[a-z]+[a-z ]*$/i';
    $usernameRegex = '/^[A-Z0-9_]+$/i';
    $passwordRegex = '/^[^ ]*$/';
    if (usernameExists($userDetails['username'])) {
        return false;
    }
    if (!preg_match($nameRegex, $userDetails['firstname']) || !preg_match($nameRegex, $userDetails['lastname']) || !preg_match($usernameRegex, $userDetails['username']) || !preg_match($passwordRegex, $userDetails['password'])) {
        return false;
    }
    if (!($userDetails['gender'] == 'Female' && in_array($userDetails['salutation'], ['Miss', 'Ms', 'Mrs', 'Madame', 'Majesty', 'Seniora'])) && !($userDetails['gender'] == 'Male' && in_array($userDetails['salutation'], ['Mr', 'Sir', 'Senior', 'Count']))) {
        return false;
    }
    if (strtotime($userDetails['birthdate']) > strtotime('-18 years')) {
        return false;
    }
    return true;
}

/**
 * Ban user
 * @param $input
 */
function shoutboxBanUser($input)
{
    global $lang, $db, $mybb, $cache;
    $lang->load('dvz_reports');
    //Validate XSRF token
    if (verify_post_check($input['my_post_key'])) {
        //Validate if weve got a username
        if (!$input['username']) {
            redirect('modcp.php?action=shoutbox_ban', $lang->invalid_username);
        }
        //Validate existance
        if (!($uid = (int) usernameExists($input['username']))) {
            redirect('modcp.php?action=shoutbox_ban', $lang->invalid_username);
        }
        //User already banned
        if (isBanned($uid)) {
            redirect('modcp.php?action=shoutbox_ban', $lang->already_banned);
        }
        if ($input['reason'] == 'different') {
            if (!$input['reason_input']) {
                redirect('modcp.php?action=shoutbox_ban', $lang->no_reason);
            } else {
                $reason = $input['reason_input'];
            }
        } else {
            $reason = $input['reason'];
        }
        $data = array('uid' => $db->escape_string($uid), 'reason' => $db->escape_string($reason), 'unbantime' => getUnban($input['length']), 'banned_by' => $db->escape_string($mybb->user['uid']));
        //Insert new ban
        $db->insert_query('dvz_reports_banned', $data);
        //Log action
        $logdata = array('uid' => $uid, 'username' => $mybb->input['username']);
        log_moderator_action($logdata, $lang->banned_user);
        //Redirect
        redirect('modcp.php?action=shoutbox_ban', $lang->ban_succesfull);
    }
}

if (!empty($_POST)) {
    $email = $_POST["email"];
    $username = sanitize($_POST["username"]);
    //Perform some validation
    //Feel free to edit / change as required
    if (trim($email) == "") {
        $errors[] = lang("ACCOUNT_SPECIFY_EMAIL");
    } else {
        if (!isValidEmail($email) || !emailExists($email)) {
            $errors[] = lang("ACCOUNT_INVALID_EMAIL");
        }
    }
    if (trim($username) == "") {
        $errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
    } else {
        if (!usernameExists($username)) {
            $errors[] = lang("ACCOUNT_INVALID_USERNAME");
        }
    }
    if (count($errors) == 0) {
        //Check that the username / email are associated to the same account
        if (!emailUsernameLinked($email, $username)) {
            $errors[] = lang("ACCOUNT_USER_OR_EMAIL_INVALID");
        } else {
            //Check if the user has any outstanding lost password requests
            $userdetails = fetchUserDetails($username);
            if ($userdetails["lost_password_request"] == 1) {
                $errors[] = lang("FORGOTPASS_REQUEST_EXISTS");
            } else {
                //Email the user asking to confirm this change password request
                //We can use the template builder here

 public function index()
 {
     /*
     UserCake (Via CupCake) Version: 2.0.2
     http://usercake.com
     */
     global $baseURL;
     $baseURL = getcwd();
     require_once "{$baseURL}/application/third_party/user_cake/models/config.php";
     if (!securePage($_SERVER['PHP_SELF'])) {
         die;
     }
     //Forms posted
     if (!empty($_POST) && $emailActivation) {
         $email = $_POST["email"];
         $username = $_POST["username"];
         //Perform some validation
         //Feel free to edit / change as required
         if (trim($email) == "") {
             $errors[] = lang("ACCOUNT_SPECIFY_EMAIL");
         } else {
             if (!isValidEmail($email) || !emailExists($email)) {
                 $errors[] = lang("ACCOUNT_INVALID_EMAIL");
             }
         }
         if (trim($username) == "") {
             $errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
         } else {
             if (!usernameExists($username)) {
                 $errors[] = lang("ACCOUNT_INVALID_USERNAME");
             }
         }
         if (count($errors) == 0) {
             //Check that the username / email are associated to the same account
             if (!emailUsernameLinked($email, $username)) {
                 $errors[] = lang("ACCOUNT_USER_OR_EMAIL_INVALID");
             } else {
                 $userdetails = fetchUserDetails($username);
                 //See if the user's account is activation
                 if ($userdetails["active"] == 1) {
                     $errors[] = lang("ACCOUNT_ALREADY_ACTIVE");
                 } else {
                     if ($resend_activation_threshold == 0) {
                         $hours_diff = 0;
                     } else {
                         $last_request = $userdetails["last_activation_request"];
                         $hours_diff = round((time() - $last_request) / (3600 * $resend_activation_threshold), 0);
                     }
                     if ($resend_activation_threshold != 0 && $hours_diff <= $resend_activation_threshold) {
                         $errors[] = lang("ACCOUNT_LINK_ALREADY_SENT", array($resend_activation_threshold));
                     } else {
                         //For security create a new activation url;
                         $new_activation_token = generateActivationToken();
                         if (!updateLastActivationRequest($new_activation_token, $username, $email)) {
                             $errors[] = lang("SQL_ERROR");
                         } else {
                             $mail = new userCakeMail();
                             $activation_url = $websiteUrl . "activate-account.php?token=" . $new_activation_token;
                             //Setup our custom hooks
                             $hooks = array("searchStrs" => array("#ACTIVATION-URL", "#USERNAME#"), "subjectStrs" => array($activation_url, $userdetails["display_name"]));
                             if (!$mail->newTemplateMsg("resend-activation.txt", $hooks)) {
                                 $errors[] = lang("MAIL_TEMPLATE_BUILD_ERROR");
                             } else {
                                 if (!$mail->sendMail($userdetails["email"], "Activate your " . $websiteName . " Account")) {
                                     $errors[] = lang("MAIL_ERROR");
                                 } else {
                                     //Success, user details have been updated in the db now mail this information out.
                                     $successes[] = lang("ACCOUNT_NEW_ACTIVATION_SENT");
                                 }
                             }
                         }
                     }
                 }
             }
         }
     }
     //Prevent the user visiting the logged in page if he/she is already logged in
     if (isUserLoggedIn()) {
         header("Location: " . str_replace('index.php/', '', site_url('account')));
         die;
     }
     $this->load->view('resend_activation');
 }

ini_set('display_errors', 1);
error_reporting(E_ALL | E_STRICT);
include '/home/jayme/firephp-core/lib/FirePHPCore/fb.php';
require 'scripts/dbConnect.php';
require 'scripts/selectQueries.php';
include 'scripts/sessions.php';
// Validate the fields upon submission.
if ($_POST) {
    $loginUsername = trim($_POST["loginUsername"], " \t\n\r\v");
    // Remove trailing whitespace from the field.
    $loginPassword = $_POST["loginPassword"];
    $errorMsg = "";
    // OPENING DATABASE CONNECTION.
    $dbConn = dbConnect();
    // Check that the username exists in the database.
    $userFound = usernameExists($dbConn, strtolower($loginUsername));
    FB::log('User found status: ' . ($userFound ? 'True' : 'False'));
    if ($userFound) {
        // Check that the password is correct for the user.
        $isValid = passwordExists($dbConn, $loginUsername, $loginPassword);
        FB::log('Login valid? ' . ($isValid ? 'True' : 'False'));
        if ($isValid) {
            //TODO Creating PHP sessions for managing user login.
            FB::log('Login success! Setting session variables...');
            $_SESSION['LoggedIn'] = true;
            $_SESSION['Username'] = $loginUsername;
            $_SESSION['UserId'] = getUserId($dbConn, $loginUsername);
            FB::info('LoggedIn: ' . $_SESSION['LoggedIn'] . ', Username: ' . $_SESSION['Username'] . ', UserId: ' . $_SESSION['UserId']);
        } else {
            $errorMsg = "<b>Your password is incorrect. Please try again.</b>";
        }

function flagLostPasswordRequest($user_name, $value)
{
    if (!usernameExists($user_name)) {
        addAlert("danger", "Invalid username specified.");
        return false;
    }
    try {
        global $db_table_prefix;
        $db = pdoConnect();
        $sqlVars = array();
        $query = "UPDATE " . $db_table_prefix . "users\n\t\tSET lost_password_request = :value\n\t\tWHERE\n\t\tuser_name = :user_name\n\t\tLIMIT 1";
        $stmt = $db->prepare($query);
        $sqlVars['value'] = $value;
        $sqlVars['user_name'] = $user_name;
        if (!$stmt->execute($sqlVars)) {
            // Error: column does not exist
            return false;
        }
        return true;
    } catch (PDOException $e) {
        addAlert("danger", "Oops, looks like our database encountered an error.");
        error_log("Error in " . $e->getFile() . " on line " . $e->getLine() . ": " . $e->getMessage());
        return false;
    } catch (ErrorException $e) {
        addAlert("danger", "Oops, looks like our server might have goofed.  If you're an admin, please check the PHP error logs.");
        return false;
    } catch (RuntimeException $e) {
        addAlert("danger", "Oops, looks like our server might have goofed.  If you're an admin, please check the PHP error logs.");
        error_log("Error in " . $e->getFile() . " on line " . $e->getLine() . ": " . $e->getMessage());
        return false;
    }
}

        $errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
    }
} else {
    if ($username == "") {
        $errors[] = lang("ACCOUNT_SPECIFY_USERNAME");
    }
}
if ($password == "") {
    $errors[] = lang("ACCOUNT_SPECIFY_PASSWORD");
}
if (count($errors) == 0) {
    //A security note here, never tell the user which credential was incorrect
    if ($email == 1) {
        $existsVar = !emailExists($email_address);
    } else {
        $existsVar = !usernameExists($username);
    }
    if ($existsVar) {
        $errors[] = lang("ACCOUNT_USER_OR_PASS_INVALID");
    } else {
        if ($email == 1) {
            $userdetails = fetchUserAuthByEmail($email_address);
        } elseif ($email == 0) {
            $userdetails = fetchUserAuthByUserName($username);
        }
        //See if the user's account is activated
        if ($userdetails["active"] == 0) {
            $errors[] = lang("ACCOUNT_INACTIVE");
        } else {
            if ($userdetails["enabled"] == 0) {
                $errors[] = lang("ACCOUNT_DISABLED");