审查视图

extend/fast/Http.php 6.0 KB
郭盛 authored
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185
<?php

namespace fast;

/**
 * 字符串类
 */
class Http
{

    /**
     * 发送一个POST请求
     * @param string $url     请求URL
     * @param array  $params  请求参数
     * @param array  $options 扩展参数
     * @return mixed|string
     */
    public static function post($url, $params = [], $options = [])
    {
        $req = self::sendRequest($url, $params, 'POST', $options);
        return $req['ret'] ? $req['msg'] : '';
    }

    /**
     * 发送一个GET请求
     * @param string $url     请求URL
     * @param array  $params  请求参数
     * @param array  $options 扩展参数
     * @return mixed|string
     */
    public static function get($url, $params = [], $options = [])
    {
        $req = self::sendRequest($url, $params, 'GET', $options);
        return $req['ret'] ? $req['msg'] : '';
    }

    /**
     * CURL发送Request请求,含POST和REQUEST
     * @param string $url     请求的链接
     * @param mixed  $params  传递的参数
     * @param string $method  请求的方法
     * @param mixed  $options CURL的参数
     * @return array
     */
    public static function sendRequest($url, $params = [], $method = 'POST', $options = [])
    {
        $method = strtoupper($method);
        $protocol = substr($url, 0, 5);
        $query_string = is_array($params) ? http_build_query($params) : $params;

        $ch = curl_init();
        $defaults = [];
        if ('GET' == $method) {
            $geturl = $query_string ? $url . (stripos($url, "?") !== false ? "&" : "?") . $query_string : $url;
            $defaults[CURLOPT_URL] = $geturl;
        } else {
            $defaults[CURLOPT_URL] = $url;
            if ($method == 'POST') {
                $defaults[CURLOPT_POST] = 1;
            } else {
                $defaults[CURLOPT_CUSTOMREQUEST] = $method;
            }
            $defaults[CURLOPT_POSTFIELDS] = $query_string;
        }

        $defaults[CURLOPT_HEADER] = false;
        $defaults[CURLOPT_USERAGENT] = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.98 Safari/537.36";
        $defaults[CURLOPT_FOLLOWLOCATION] = true;
        $defaults[CURLOPT_RETURNTRANSFER] = true;
        $defaults[CURLOPT_CONNECTTIMEOUT] = 3;
        $defaults[CURLOPT_TIMEOUT] = 3;

        // disable 100-continue
        curl_setopt($ch, CURLOPT_HTTPHEADER, array('Expect:'));

        if ('https' == $protocol) {
            $defaults[CURLOPT_SSL_VERIFYPEER] = false;
            $defaults[CURLOPT_SSL_VERIFYHOST] = false;
        }

        curl_setopt_array($ch, (array)$options + $defaults);

        $ret = curl_exec($ch);
        $err = curl_error($ch);

        if (false === $ret || !empty($err)) {
            $errno = curl_errno($ch);
            $info = curl_getinfo($ch);
            curl_close($ch);
            return [
                'ret'   => false,
                'errno' => $errno,
                'msg'   => $err,
                'info'  => $info,
            ];
        }
        curl_close($ch);
        return [
            'ret' => true,
            'msg' => $ret,
        ];
    }

    /**
     * 异步发送一个请求
     * @param string $url    请求的链接
     * @param mixed  $params 请求的参数
     * @param string $method 请求的方法
     * @return boolean TRUE
     */
    public static function sendAsyncRequest($url, $params = [], $method = 'POST')
    {
        $method = strtoupper($method);
        $method = $method == 'POST' ? 'POST' : 'GET';
        //构造传递的参数
        if (is_array($params)) {
            $post_params = [];
            foreach ($params as $k => &$v) {
                if (is_array($v)) {
                    $v = implode(',', $v);
                }
                $post_params[] = $k . '=' . urlencode($v);
            }
            $post_string = implode('&', $post_params);
        } else {
            $post_string = $params;
        }
        $parts = parse_url($url);
        //构造查询的参数
        if ($method == 'GET' && $post_string) {
            $parts['query'] = isset($parts['query']) ? $parts['query'] . '&' . $post_string : $post_string;
            $post_string = '';
        }
        $parts['query'] = isset($parts['query']) && $parts['query'] ? '?' . $parts['query'] : '';
        //发送socket请求,获得连接句柄
        $fp = fsockopen($parts['host'], isset($parts['port']) ? $parts['port'] : 80, $errno, $errstr, 3);
        if (!$fp) {
            return false;
        }
        //设置超时时间
        stream_set_timeout($fp, 3);
        $out = "{$method} {$parts['path']}{$parts['query']} HTTP/1.1\r\n";
        $out .= "Host: {$parts['host']}\r\n";
        $out .= "Content-Type: application/x-www-form-urlencoded\r\n";
        $out .= "Content-Length: " . strlen($post_string) . "\r\n";
        $out .= "Connection: Close\r\n\r\n";
        if ($post_string !== '') {
            $out .= $post_string;
        }
        fwrite($fp, $out);
        //不用关心服务器返回结果
        //echo fread($fp, 1024);
        fclose($fp);
        return true;
    }

    /**
     * 发送文件到客户端
     * @param string $file
     * @param bool   $delaftersend
     * @param bool   $exitaftersend
     */
    public static function sendToBrowser($file, $delaftersend = true, $exitaftersend = true)
    {
        if (file_exists($file) && is_readable($file)) {
            header('Content-Description: File Transfer');
            header('Content-Type: application/octet-stream');
            header('Content-Disposition: attachment;filename = ' . basename($file));
            header('Content-Transfer-Encoding: binary');
            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);
            if ($delaftersend) {
                unlink($file);
            }
            if ($exitaftersend) {
                exit;
            }
        }
    }
}