/**
* 构造函数
*
* @access public
*
* @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
*
* @return boolean
*/
public function __construct($options = null)
{
if (!extension_loaded('redis')) {
Controller::halt('The redis extension to be loaded!');
}
//当参数为空时,程序则自动加载配置文件中数据库连接参数
if (!$options || !is_array($options)) {
$options = Configure::get('redis');
if (!$options) {
$options = array();
}
}
$options += $this->_defaultOptions;
//连接数据库
$this->_Redis = new Redis();
$connect = !$options['persistent'] ? 'connect' : 'pconnect';
$return = $this->_Redis->{$connect}($options['host'], $options['port'], $options['expire']);
if ($return && $options['password']) {
$return = $this->_Redis->auth($options['password']);
}
if ($return && $options['database']) {
$return = $this->_Redis->select($options['database']);
}
return $return;
}
/**
* http下载文件
*
* Reads a file and send a header to force download it.
*
* @access public
*
* @param string $file 文件路径
* @param string $rename 文件重命名后的名称
*
* @return void
*/
public static function render($file, $rename = null)
{
//参数分析
if (!$file) {
return false;
}
if (headers_sent()) {
return false;
}
//分析文件是否存在
if (!is_file($file)) {
Controller::showMsg('Error 404:The file not found!');
}
//分析文件名
$filename = !$rename ? basename($file) : $rename;
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header("Content-Disposition: attachment; filename=\"{$filename}\"");
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();
flush();
readfile($file);
exit;
}
/**
* 构造方法
*
* 用于初始化运行环境,或对基本变量进行赋值
*
* @access public
*
* @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
*
* @return boolean
*/
public function __construct($params = array())
{
if (!extension_loaded('mongo')) {
Controller::halt('The mongo extension to be loaded!');
}
//参数分析
if (!$params || !is_array($params)) {
//加载数据库配置文件.
$params = Configure::get('mongo');
}
$params = is_array($params) ? $params + $this->_defaultConfig : $this->_defaultConfig;
if (!isset($params['dbname']) || !$params['dbname']) {
Controller::halt('The file of MongoDB config is error, dbname is not found!');
}
try {
//实例化mongo
$this->_mongo = new Mongo($params['dsn'], $params['option']);
//连接mongo数据库
$this->_dbLink = $this->_mongo->selectDB($params['dbname']);
//用户登录
if (isset($params['username']) && isset($params['password'])) {
$this->_dbLink->authenticate($params['username'], $params['password']);
}
return true;
} catch (Exception $exception) {
//抛出异常信息
throw new DoitException('MongoDb connect error!<br/>' . $exception->getMessage(), $exception->getCode());
}
}
/**
* 连接FTP服务器
*
* @access public
*
* @param string $server FTP服务器地址
* @param integer $port FTP服务器端口
* @param string $username FTP用户名
* @param string $password FTP密码
*
* @return boolean
*/
public function connect($server, $port = 21, $username, $password)
{
//参数分析
if (!$server || !$username || !$password) {
return false;
}
try {
$this->_linkId = @ftp_connect($server, $port);
if (!@ftp_login($this->_linkId, $username, $password)) {
Controller::showMsg('Ftp Server 登陆失败');
}
//打开被动模拟
ftp_pasv($this->_linkId, 1);
return true;
} catch (Exception $exception) {
//抛出异常信息
throw new DoitException('Ftp server connect error!<br/>' . $exception->getMessage(), $exception->getCode());
}
}
/**
* 项目文件的自动加载
*
* doitPHP系统自动加载核心类库文件(core目录内的文件)及运行所需的controller文件、model文件、widget文件等
*
* 注:并非程序初始化时将所有的controller,model等文件都统统加载完,再执行其它。
* 理解本函数前一定要先理解AutoLoad的作用。
* 当程序运行时发现所需的文件没有找到时,AutoLoad才会被激发,按照loadClass()的程序设计来完成对该文件的加载
*
* @access public
*
* @param string $className 所需要加载的类的名称,注:不含后缀名
*
* @return void
*/
public static function loadClass($className)
{
//doitPHP核心类文件的加载分析
if (substr($className, 0, 8) == 'doitphp\\') {
$className = substr($className, 8);
$filePath = DOIT_ROOT . DS . str_replace('\\', DS, $className) . '.php';
} else {
$filePath = BASE_PATH . DS . (strpos($className, '\\') !== false ? str_replace(array('\\', '_'), DS, $className) : str_replace('_', DS, $className)) . '.php';
if (!is_file($filePath)) {
//根据配置文件设置,加载文件
if (self::_loadImportConfigFile($className)) {
return true;
}
//当文件不存在时，提示错误信息
Controller::halt('The File: ' . $filePath . ' is not found !', 'Normal');
}
}
Doit::loadFile($filePath);
return true;
}
/**
* 构造方法
*
* @access public
*
* @param array $params 数据库连接参数,如主机名,数据库用户名,密码等
*
* @return boolean
*/
public function __construct($options = null)
{
//分析memcached扩展模块的加载
if (!extension_loaded('memcached')) {
Controller::halt('The memcached extension to be loaded before use!');
}
//获取Memcache服务器连接参数
if (!$options || !is_array($options)) {
$options = Configure::get('memcached');
}
if (is_array($options) && $options) {
$this->_defaultOptions = $options + $this->_defaultOptions;
}
if (!$this->_defaultOptions['servers']) {
$this->_defaultOptions['servers'][] = $this->_defaultServer;
}
$this->_Memcached = new Memcached();
foreach ($this->_defaultOptions['servers'] as $server) {
$server += array('host' => '127.0.0.1', 'port' => 11211, 'persistent' => true);
$this->_Memcached->addServer($server['host'], $server['port'], $this->_defaultOptions['persistent']);
}
return true;
}
/**
* 根据图片原来的宽和高的比例,自适应性处理缩略图的宽度和高度
*
* @access protected
* @return boolean
*/
protected function _handleImageSize()
{
//当没有所生成的图片的宽度和高度设置时.
if (!$this->_width || !$this->_height) {
Controller::halt('You do not set the image height size or width size!');
}
$perW = $this->_width / $this->_imageWidth;
$perH = $this->_height / $this->_imageHeight;
if (ceil($this->_imageHeight * $perW) > $this->_height) {
$this->_widthNew = ceil($this->_imageWidth * $perH);
$this->_heightNew = $this->_height;
} else {
$this->_widthNew = $this->_width;
$this->_heightNew = ceil($this->_imageHeight * $perW);
}
return true;
}
/**
* 读取名字为$name的zip包的内容
*
* @access public
*
* @param string $name 所读取的zip文件的路径
*
* @return array
*/
public function readZip($name)
{
//参数分析
if (!$name) {
return false;
}
if (!is_file($name)) {
Controller::halt("The File: {$name} is not found!");
}
// File information
$size = filesize($name);
// Read file
$fh = fopen($name, "rb");
$filedata = fread($fh, $size);
fclose($fh);
// Break into sections
$filesecta = explode("PK", $filedata);
// ZIP Comment
$unpackeda = unpack('x16/v1length', $filesecta[1]);
$comment = substr($filesecta[1], 18, $unpackeda['length']);
$comment = str_replace(array("\r\n", "\r"), "\n", $comment);
// CR + LF and CR -> LF
// Cut entries from the central directory
$filesecta = explode("PK", $filedata);
$filesecta = explode("PK", $filesecta[0]);
array_shift($filesecta);
// Removes empty entry/signature
$files = array();
foreach ($filesecta as $filedata) {
// CRC:crc, FD:file date, FT: file time, CM: compression method, GPF: general purpose flag, VN: version needed, CS: compressed size, UCS: uncompressed size, FNL: filename length
$entrya = array();
$unpackeda = unpack("v1version/v1general_purpose/v1compress_method/v1file_time/v1file_date/V1crc/V1size_compressed/V1size_uncompressed/v1filename_length", $filedata);
// Check for value block after compressed data
if ($unpackeda['general_purpose'] & 0x8) {
$unpackeda2 = unpack("V1crc/V1size_compressed/V1size_uncompressed", substr($filedata, -12));
$unpackeda['crc'] = $unpackeda2['crc'];
$unpackeda['size_compressed'] = $unpackeda2['size_uncompressed'];
$unpackeda['size_uncompressed'] = $unpackeda2['size_uncompressed'];
unset($unpackeda2);
}
$entrya['name'] = substr($filedata, 26, $unpackeda['filename_length']);
if (substr($entrya['name'], -1) == "/") {
continue;
}
$entrya['dir'] = dirname($entrya['name']);
$entrya['dir'] = $entrya['dir'] == "." ? "" : $entrya['dir'];
$entrya['name'] = basename($entrya['name']);
$files[] = $entrya;
}
return $files;
}
/**
* 处理jquery 插件 lazyload的调用代码
*
* @access public
*
* @param string $tag 图片的选择器标签
* @param string $options 图片类型(非图片格式类型)
*
* @return string
*/
public static function lazyload($tag = 'img', $options = 'small')
{
//选择AJAX加载类型图片
$imageName = self::_parseAjaxImage($options);
return "<script type=\"text/javascript\">\$(document).ready(function(){\$('" . $tag . "').lazyload({placeholder:'" . Controller::getAssetUrl('doit/images') . '/' . $imageName . "',effect:'fadeIn'});});</script>\r";
}
/**
* 获取当前项目asset目录的url
*
* @access public
*
* @param string $dirName asset目录的子目录名
*
* @return string
*/
public static function getAssetUrl($dirName = null)
{
return Controller::getAssetUrl($dirName);
}
/**
* 视图中加载pager的CSS文件
*
* 注：本方法虽与loadCss()功能一样，不过本方法是供在视图中使用的，主要用在ajax分页时。如：Pagination::loadCssFile();
*
* @access public
*
* @param string $styleName
*
* @return string
*/
public static function loadCssFile($styleName = 'classic')
{
//设置分页CSS样式
switch ($styleName) {
case 'classic':
$_styleFile = 'doitphp_pagelist_classic.min.css';
break;
default:
$_styleFile = 'doitphp_pagelist_default.min.css';
}
$cssFile = Controller::getBaseUrl() . '/assets/doit/images/' . $_styleFile;
return "<link rel=\"stylesheet\" type=\"text/css\" href=\"" . $cssFile . "\"/>\r";
}
/**
* 静态加载文件(相当于PHP函数require_once)
*
* include 以$fileName为名的php文件,如果加载了,这里将不再加载.
* @param string $filePath 文件路径,注:含后缀名
* @return boolean
*/
public static function loadFile($filePath)
{
//参数分析
if (!$filePath) {
return false;
}
//判断文件有没有加载过,加载过的直接返回true
if (!isset(self::$_incFiles[$filePath])) {
//分析文件是不是真实存在,若文件不存在,则只能...
if (!is_file($filePath)) {
//当所要加载的文件不存在时,错误提示
Controller::halt('The File: ' . $filePath . ' is not found!', 'Normal');
}
include_once $filePath;
self::$_incFiles[$filePath] = true;
}
return self::$_incFiles[$filePath];
}
/**
* 文件重命名或移动文件
*
* @access public
*
* @param string $sourceFile 源文件
* @param string $destFile 新文件名或路径
*
* @return boolean
*/
public static function moveFile($sourceFile, $destFile)
{
//参数分析
if (!$sourceFile || !$destFile) {
return false;
}
//文件及目录分析
if (!is_file($sourceFile)) {
Controller::halt('The file:' . $sourceFile . ' is not found!');
}
self::_parseDir(dirname($destFile), true);
return rename($sourceFile, $destFile);
}
/**
* 显示验证码.
*
* @access public
*
* @param string $imageUrl 验证码的背影图片路径
*
* @return void
*/
public function show($imageUrl = null)
{
//当前面没有session_start()调用时.
Session::start();
if (!is_null($imageUrl)) {
$this->_imageUrl = trim($imageUrl);
}
$this->_image = !function_exists('imagecreatetruecolor') ? imagecreate($this->_width, $this->_height) : imagecreatetruecolor($this->_width, $this->_height);
//当有背景图片存在时
if ($this->_imageUrl) {
//初始化图片信息.
list($imageWidth, $imageHeight, $type) = getimagesize($this->_imageUrl);
//分析图片的格式
switch ($type) {
case 1:
$image = imagecreatefromgif($this->_imageUrl);
$this->_type = 'gif';
break;
case 2:
$image = imagecreatefromjpeg($this->_imageUrl);
$this->_type = 'jpg';
break;
case 3:
$image = imagecreatefrompng($this->_imageUrl);
$this->_type = 'png';
break;
case 4:
$image = imagecreatefromwbmp($this->_imageUrl);
$this->_type = 'bmp';
break;
}
//背景
$srcX = $imageWidth > $this->_width ? mt_rand(0, $imageWidth - $this->_width) : 0;
$srcY = $imageHeight > $this->_height ? mt_rand(0, $imageHeight - $this->_height) : 0;
imagecopymerge($this->_image, $image, 0, 0, $srcX, $srcY, $this->_width, $this->_height, 100);
imagedestroy($image);
//边框
$borderColor = imagecolorallocate($this->_image, 255, 255, 255);
imagerectangle($this->_image, 1, 1, $this->_width - 2, $this->_height - 2, $borderColor);
} else {
//定义图片类型
$this->_type = 'png';
//背景
$bgColorArray = !$this->_bgColor ? array(255, 255, 255) : $this->_bgColor;
$back_color = imagecolorallocate($this->_image, $bgColorArray[0], $bgColorArray[1], $bgColorArray[2]);
imagefilledrectangle($this->_image, 0, 0, $this->_width - 1, $this->_height - 1, $back_color);
//边框
$borderColor = imagecolorallocate($this->_image, 238, 238, 238);
imagerectangle($this->_image, 0, 0, $this->_width - 1, $this->_height - 1, $borderColor);
}
//获取验证码内容.
$this->getCaptchaContent();
//验证码中含有汉字
if (!preg_match('~[\\x{4e00}-\\x{9fa5}]+~u', $this->_textContent)) {
//计算验证码的位数
$codeStrlen = strlen($this->_textContent);
//每位验证码所占用的图片宽度
$perWidth = ceil(($this->_width - 10) / $codeStrlen);
for ($i = 0; $i < $codeStrlen; $i++) {
//获取单个字符
$textContent = $this->_textContent[$i];
$bbox = imagettfbbox($this->_fontSize, 0, $this->_fontName, $textContent);
$fontW = $bbox[2] - $bbox[0];
$fontH = abs($bbox[7] - $bbox[1]);
$fontX = ceil(($perWidth - $fontW) / 2) + $perWidth * $i + 5;
$min_y = $fontH + 5;
$max_y = $this->_height - 5;
$fontY = rand($min_y, $max_y);
$fontColor = !$this->_fontColor ? imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)) : imagecolorallocate($this->_image, $this->_fontColor[0], $this->_fontColor[1], $this->_fontColor[2]);
imagettftext($this->_image, $this->_fontSize, 0, $fontX, $fontY, $fontColor, $this->_fontName, $textContent);
}
} else {
//分析验证码的位置
$bbox = imagettfbbox($this->_fontSize, 0, $this->_fontName, $this->_textContent);
$fontW = $bbox[2] - $bbox[0];
$fontH = abs($bbox[7] - $bbox[1]);
$fontX = ceil(($this->_width - $fontW) / 2) + 5;
$min_y = $fontH + 5;
$max_y = $this->_height - 5;
$fontY = rand($min_y, $max_y);
$fontColor = !$this->_fontColor ? imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255)) : imagecolorallocate($this->_image, $this->_fontColor[0], $this->_fontColor[1], $this->_fontColor[2]);
imagettftext($this->_image, $this->_fontSize, 0, $fontX, $fontY, $fontColor, $this->_fontName, $this->_textContent);
}
//干扰线
for ($i = 0; $i < 5; $i++) {
$line_color = imagecolorallocate($this->_image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255));
imageline($this->_image, mt_rand(2, $this->_width - 3), mt_rand(2, $this->_height - 3), mt_rand(2, $this->_width - 3), mt_rand(2, $this->_height - 3), $line_color);
}
//将显示的验证码赋值给session.
Session::set($this->_sessionName, $this->_textContent);
//当有headers内容输出时.
if (headers_sent()) {
Controller::halt('headers already sent');
}
//显示图片,根据背景图片的格式显示相应格式的图片.
switch ($this->_type) {
case 'gif':
header('Content-type:image/gif');
imagegif($this->_image);
break;
case 'jpg':
header('Content-type:image/jpeg');
imagejpeg($this->_image);
break;
case 'png':
header('Content-type:image/png');
imagepng($this->_image);
break;
case 'bmp':
header('Content-type:image/wbmp');
imagewbmp($this->_image);
break;
}
imagedestroy($this->_image);
}
