www.gusucode.com > baigo CMS PHP开源网站管理系统 v1.2.2源码程序 > baigocms_v1.2.2/bg_sso/core/func/common.func.php

    <?php
/*-----------------------------------------------------------------
！！！！警告！！！！
以下为系统文件，请勿修改
-----------------------------------------------------------------*/


//不能非法包含或直接执行
if(!defined("IN_BAIGO")) {
    exit("Access Denied");
}


/** 随机数
 * fn_rand function.
 *
 * @access public
 * @param int $num_rand (default: 32)
 * @return void
 */
function fn_rand($num_rand = 32) {
    $_str_char = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    $_str_rnd = "";
    while (strlen($_str_rnd) < $num_rand) {
        $_str_rnd .= substr($_str_char, (rand(0, strlen($_str_char))), 1);
    }
    return $_str_rnd;
}


/** 获取 IP
 * fn_getIp function.
 *
 * @access public
 * @return void
 */
function fn_getIp($str_ipTrue = true) {
    if (isset($_SERVER)) {
        if ($str_ipTrue) {
            if (fn_server("HTTP_X_FORWARDED_FOR")) {
                $_arr_ips = explode(",", fn_server("HTTP_X_FORWARDED_FOR"));
                foreach ($_arr_ips as $_key=>$_value) {
                    $_value = trim($_value);
                    if ($_value != "unknown") {
                        $_str_ip = $_value;
                        break;
                    }
                }
            } elseif (fn_server("HTTP_CLIENT_IP")) {
                $_str_ip = fn_server("HTTP_CLIENT_IP");
            } elseif (fn_server("REMOTE_ADDR")) {
                $_str_ip = fn_server("REMOTE_ADDR");
            } else {
                $_str_ip = "0.0.0.0";
            }
        } else {
            if (fn_server("REMOTE_ADDR")) {
                $_str_ip = fn_server("REMOTE_ADDR");
            } else {
                $_str_ip = "0.0.0.0";
            }
        }
    } else {
        if ($str_ipTrue) {
            if (getenv("HTTP_X_FORWARDED_FOR")) {
                $_str_ip = getenv("HTTP_X_FORWARDED_FOR");
            } elseif (getenv("HTTP_CLIENT_IP")) {
                $_str_ip = getenv("HTTP_CLIENT_IP");
            } else {
                $_str_ip = getenv("REMOTE_ADDR");
            }
        } else {
            $_str_ip = getenv("REMOTE_ADDR");
        }
    }
    return $_str_ip;
}


/** 验证码校对
 * fn_seccode function.
 *
 * @access public
 * @return void
 */
function fn_seccode() {
    $_str_seccode = strtolower(fn_post("seccode"));
    if ($_str_seccode != fn_session("seccode")) {
        return false;
    } else {
        return true;
    }
}


/** 令牌生成、校对
 * fn_token function.
 *
 * @access public
 * @param string $token_action (default: "mk")
 * @param string $token_method (default: "post")
 * @return void
 */
function fn_token($token_action = "mk", $session_method = "post", $cookie_method = "cookie") {
    switch ($token_action) {
        case "chk":
            switch ($session_method) {
                case "get":
                    $_str_tokenSession = fn_getSafe(fn_get("token_session"), "txt", "");
                break;
                default:
                    $_str_tokenSession = fn_getSafe(fn_post("token_session"), "txt", "");
                break;
            }

            switch ($cookie_method) {
                case "get":
                    $_str_tokenCookie = fn_getSafe(fn_get("token_cookie"), "txt", "");
                break;
                case "post":
                    $_str_tokenCookie = fn_getSafe(fn_post("token_cookie"), "txt", "");
                break;
                default:
                    $_str_tokenCookie = fn_cookie("token_cookie");
                break;
            }

            if (BG_SWITCH_TOKEN == 1) {
                 if ($_str_tokenSession != fn_session("token_session") || $_str_tokenCookie != fn_session("token_cookie")) {
                    $_str_return = false;
                 } else {
                    $_str_return = true;
                 }
            } else {
                $_str_return = true;
            }
        break;

        default:
            if (BG_SWITCH_TOKEN == 1) {
                $_num_tokenSessionDiff = fn_session("token_session_time") + 300; //session有效期
                if (!fn_session("token_session") || !fn_session("token_session_time") || $_num_tokenSessionDiff < time()) {
                    $_str_tokenSession                 = fn_rand();
                    fn_session("token_session", "mk", $_str_tokenSession);
                    fn_session("token_session_time", "mk", time());
                } else {
                    $_str_tokenSession = fn_session("token_session");
                }

                $_num_tokenCookieDiff = fn_session("token_cookie_time") + 300; //cookie有效期
                if (!fn_session("token_cookie") || !fn_session("token_cookie_time") || $_num_tokenCookieDiff < time()) {
                    $_str_tokenCookie              = fn_rand();
                    fn_session("token_cookie", "mk", $_str_tokenCookie);
                    fn_session("token_cookie_time", "mk", time());
                } else {
                    $_str_tokenCookie = fn_session("token_cookie");
                }

                $_str_return = $_str_tokenSession;
                fn_cookie("token_cookie", "mk", $_str_tokenCookie);


            }
        break;
    }

    return $_str_return;
}

/*============清除全部cookie============
无返回
*/
function fn_clearCookie() {
    fn_cookie("cookie_ui", "unset");
    fn_cookie("cookie_lang", "unset");
}


/** 过滤数据
 * fn_getSafe function.
 *
 * @access public
 * @param mixed $str_string
 * @param string $str_type (default: "txt")
 * @param string $str_default (default: "")
 * @return void
 */
function fn_getSafe($str_string, $str_type = "txt", $str_default = "") {

    if ($str_string) {
        $_str_string = $str_string;
    } else {
        $_str_string = $str_default;

    }

    switch ($str_type) {

        case "int": //数值型
            if (is_numeric($_str_string)) {
                $_str_return = intval($_str_string); //如果是数值型则赋值
            } else {
                $_str_return = 0; //如果默认值为空则赋值为0
            }
        break;

        default: //默认
            $_str_return = htmlentities($_str_string, ENT_QUOTES, "UTF-8");
        break;

    }

    return $_str_return;

}


/** 获取 UTF8 字符长度
 * fn_strlen_utf8 function.
 *
 * @access public
 * @param mixed $str
 * @return void
 */
function fn_strlen_utf8($str_string) {
    // 将字符串分解为单元
    preg_match_all("/./us", $str_string, $match);
    // 返回单元个数
    return count($match[0]);
}


/**
 * fn_substr_utf8 function.
 *
 * @access public
 * @param mixed $str_string
 * @param mixed $begin
 * @param mixed $length
 * @return void
 */
function fn_substr_utf8($str_string, $begin, $length) {
    preg_match_all("/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/i", $str_string, $_arr);

    return join("", array_slice($_arr[0], $begin, $length));
}


/** 分页参数
 * fn_page function.
 *
 * @access public
 * @param mixed $num_total
 * @param mixed $num_per (default: BG_DEFAULT_PERPAGE)
 * @return void
 */
function fn_page($num_total, $num_per = BG_DEFAULT_PERPAGE) {

    $_num_pageThis = fn_getSafe(fn_get("page"), "int", 1);

    if ($_num_pageThis < 1) {
        $_num_pageThis = 1;
    } else {
        $_num_pageThis = $_num_pageThis;
    }

    $_num_pageTotal = $num_total / $num_per;

    if (intval($_num_pageTotal) < $_num_pageTotal) {
        $_num_pageTotal = intval($_num_pageTotal) + 1;
    } elseif ($_num_pageTotal < 1) {
        $_num_pageTotal = 1;
    } else {
        $_num_pageTotal = intval($_num_pageTotal);
    }

    if ($_num_pageThis > $_num_pageTotal) {
        $_num_pageThis = $_num_pageTotal;
    }

    if ($_num_pageThis <= 1) {
        $_num_except = 0;
    } else {
        $_num_except = ($_num_pageThis - 1) * $num_per;
    }

    $_p        = intval(($_num_pageThis - 1) / 10); //是否存在上十页、下十页参数
    $_begin    = $_p * 10 + 1; //列表起始页
    $_end      = $_p * 10 + 10; //列表结束页

    if ($_end >= $_num_pageTotal) {
        $_end = $_num_pageTotal;
    }

    return array(
        "page"    => $_num_pageThis,
        "p"       => $_p,
        "begin"   => $_begin,
        "end"     => $_end,
        "total"   => $_num_pageTotal,
        "except"  => $_num_except,
    );
}


/** JSON 编码（内容可编码成 base64）
 * fn_jsonEncode function.
 *
 * @access public
 * @param string $arr_json (default: "")
 * @param string $method (default: "")
 * @return void
 */
function fn_jsonEncode($arr_json = "", $method = "") {
    if ($arr_json) {
        $arr_json = fn_eachArray($arr_json, $method);
        //print_r($method);
        $str_json = json_encode($arr_json); //json编码
    } else {
        $str_json = "";
    }
    return $str_json;
}


/** JSON 解码 (内容可解码自 base64)
 * fn_jsonDecode function.
 *
 * @access public
 * @param string $str_json (default: "")
 * @param string $method (default: "")
 * @return void
 */
function fn_jsonDecode($str_json = "", $method = "") {
    if (isset($str_json)) {
        $arr_json = json_decode($str_json, true); //json解码
        $arr_json = fn_eachArray($arr_json, $method);
    } else {
        $arr_json = array();
    }
    return $arr_json;
}



/** 遍历数组，并进行 base64 解码编码
 * fn_eachArray function.
 *
 * @access public
 * @param mixed $arr
 * @param string $method (default: "encode")
 * @return void
 */
function fn_eachArray($arr, $method = "encode") {
    $_is_magic = get_magic_quotes_gpc();
    if (is_array($arr)) {
        foreach ($arr as $_key=>$_value) {
            if (is_array($_value)) {
                $arr[$_key] = fn_eachArray($_value, $method);
            } else {
                switch ($method) {
                    case "encode":
                        if (!$_is_magic) {
                            $_str = addslashes($_value);
                        } else {
                            $_str = $_value;
                        }
                        $arr[$_key] = base64_encode($_str);
                    break;

                    case "decode":
                        $_str = base64_decode($_value);
                        //if (!$_is_magic) {
                            $arr[$_key] = stripslashes($_str);
                        //} else {
                            //$arr[$_key] = $_str;
                        //}
                    break;

                    default:
                        if (!$_is_magic) {
                            $_str = addslashes($_value);
                        } else {
                            $_str = $_value;
                        }
                        $arr[$_key] = $_str;
                    break;
                }
            }
        }
    } else {
        $arr = array();
    }
    return $arr;
}



/** 密码加密
 * fn_baigoEncrypt function.
 *
 * @access public
 * @param mixed $str
 * @param mixed $rand
 * @return void
 */
function fn_baigoEncrypt($str, $rand, $is_md5 = false) {
    if ($is_md5) {
        $_str = $str;
    } else {
        $_str = md5($str);
    }
    $_str_return = md5($_str . $rand);
    return $_str_return;
}


/** 正则匹配
 * fn_regChk function.
 *
 * @access public
 * @param mixed $str_chk
 * @param mixed $str_reg
 * @param bool $str_wild (default: false)
 * @return void
 */
function fn_regChk($str_chk, $str_reg, $str_wild = false) {
    $_str_reg = trim($str_reg);
    $_str_reg = preg_quote($_str_reg, "/");

    if ($str_wild == true) {
        $_str_reg = str_replace("\\*", ".*", $_str_reg);
        $_str_reg = str_replace(" ", "", $_str_reg);
        $_str_reg = "/^(" . $_str_reg . ")$/i";
    } else {
        $_str_reg = "/(" . $_str_reg . ")$/i";
    }

    $_str_reg = str_replace("\|", "|", $_str_reg);
    $_str_reg = str_replace("|)", ")", $_str_reg);

    /*print_r($_str_reg . "<br>");
    preg_match($_str_reg, $str_chk, $aaaa);
    print_r($aaaa);*/

    return preg_match($_str_reg, $str_chk);
}


/** 封装 $_GET
 * fn_get function.
 *
 * @access public
 * @param mixed $key
 * @return void
 */
function fn_get($key) {
    if (isset($_GET[$key])) {
        return $_GET[$key];
    } else {
        return null;
    }
}


/** 封装 $_POST
 * fn_post function.
 *
 * @access public
 * @param mixed $key
 * @return void
 */
function fn_post($key) {
    if (isset($_POST[$key])) {
        return $_POST[$key];
    } else {
        return null;
    }
}


/** 封装 $_COOKIE
 * fn_cookie function.
 *
 * @access public
 * @param mixed $key
 * @return void
 */
function fn_cookie($key, $method = "get", $value = "") {
    switch ($method) {
        case "mk":
            setcookie($key . "_" . BG_SITE_SSIN, $value);
        break;

        case "unset":
            unset($_COOKIE[$key . "_" . BG_SITE_SSIN]);
        break;

        default:
            if (isset($_COOKIE[$key . "_" . BG_SITE_SSIN])) {
                return $_COOKIE[$key . "_" . BG_SITE_SSIN];
            } else {
                return null;
            }
        break;
    }
}


function fn_session($key, $method = "get", $value = "") {
    switch ($method) {
        case "mk":
            $_SESSION[$key . "_" . BG_SITE_SSIN] = $value;
        break;

        case "unset":
            unset($_SESSION[$key . "_" . BG_SITE_SSIN]);
        break;

        default:
            if (isset($_SESSION[$key . "_" . BG_SITE_SSIN])) {
                return $_SESSION[$key . "_" . BG_SITE_SSIN];
            } else {
                return null;
            }
        break;
    }
}


/** 封装 $_REQUEST
 * fn_request function.
 *
 * @access public
 * @param mixed $key
 * @return void
 */
function fn_request($key) {
    if (isset($_REQUEST[$key])) {
        return $_REQUEST[$key];
    } else {
        return null;
    }
}


/** 封装 $_SERVER
 * fn_server function.
 *
 * @access public
 * @param mixed $key
 * @return void
 */
function fn_server($key) {
    if (isset($_SERVER[$key])) {
        return $_SERVER[$key];
    } else {
        return null;
    }
}