http.php

来自「PHP 知识管理系统（基于树结构的知识管理系统）, 英文原版的PHP源码。」· PHP 代码 · 共 624 行 · 第 1/2 页

        $this->_http_version = false;
        $this->_mime_type = '';
        $this->_location = false;
        $this->_cookies = array();
        $this->_authentication = false;
        $this->_realm = false;
        foreach (split("\r\n", $headers) as $header_line) {
            $this->_parseHeaderLine($header_line);
        }
    }
    
    /**
     *    Accessor for parsed HTTP protocol version.
     *    @return integer           HTTP error code.
     *    @access public
     */
    function getHttpVersion() {
        return $this->_http_version;
    }
    
    /**
     *    Accessor for raw header block.
     *    @return string        All headers as raw string.
     *    @access public
     */
    function getRaw() {
        return $this->_raw_headers;
    }
    
    /**
     *    Accessor for parsed HTTP error code.
     *    @return integer           HTTP error code.
     *    @access public
     */
    function getResponseCode() {
        return (integer)$this->_response_code;
    }
    
    /**
     *    Returns the redirected URL or false if
     *    no redirection.
     *    @return string      URL or false for none.
     *    @access public
     */
    function getLocation() {
        return $this->_location;
    }
    
    /**
     *    Test to see if the response is a valid redirect.
     *    @return boolean       True if valid redirect.
     *    @access public
     */
    function isRedirect() {
        return in_array($this->_response_code, array(301, 302, 303, 307)) &&
                (boolean)$this->getLocation();
    }
    
    /**
     *    Test to see if the response is an authentication
     *    challenge.
     *    @return boolean       True if challenge.
     *    @access public
     */
    function isChallenge() {
        return ($this->_response_code == 401) &&
                (boolean)$this->_authentication &&
                (boolean)$this->_realm;
    }
    
    /**
     *    Accessor for MIME type header information.
     *    @return string           MIME type.
     *    @access public
     */
    function getMimeType() {
        return $this->_mime_type;
    }
    
    /**
     *    Accessor for authentication type.
     *    @return string        Type.
     *    @access public
     */
    function getAuthentication() {
        return $this->_authentication;
    }
    
    /**
     *    Accessor for security realm.
     *    @return string        Realm.
     *    @access public
     */
    function getRealm() {
        return $this->_realm;
    }
    
    /**
     *    Writes new cookies to the cookie jar.
     *    @param SimpleCookieJar $jar   Jar to write to.
     *    @param SimpleUrl $url         Host and path to write under.
     *    @access public
     */
    function writeCookiesToJar(&$jar, $url) {
        foreach ($this->_cookies as $cookie) {
            $jar->setCookie(
                    $cookie->getName(),
                    $cookie->getValue(),
                    $url->getHost(),
                    $cookie->getPath(),
                    $cookie->getExpiry());
        }
    }

    /**
     *    Called on each header line to accumulate the held
     *    data within the class.
     *    @param string $header_line        One line of header.
     *    @access protected
     */
    function _parseHeaderLine($header_line) {
        if (preg_match('/HTTP\/(\d+\.\d+)\s+(\d+)/i', $header_line, $matches)) {
            $this->_http_version = $matches[1];
            $this->_response_code = $matches[2];
        }
        if (preg_match('/Content-type:\s*(.*)/i', $header_line, $matches)) {
            $this->_mime_type = trim($matches[1]);
        }
        if (preg_match('/Location:\s*(.*)/i', $header_line, $matches)) {
            $this->_location = trim($matches[1]);
        }
        if (preg_match('/Set-cookie:(.*)/i', $header_line, $matches)) {
            $this->_cookies[] = $this->_parseCookie($matches[1]);
        }
        if (preg_match('/WWW-Authenticate:\s+(\S+)\s+realm=\"(.*?)\"/i', $header_line, $matches)) {
            $this->_authentication = $matches[1];
            $this->_realm = trim($matches[2]);
        }
    }
    
    /**
     *    Parse the Set-cookie content.
     *    @param string $cookie_line    Text after "Set-cookie:"
     *    @return SimpleCookie          New cookie object.
     *    @access private
     */
    function _parseCookie($cookie_line) {
        $parts = split(";", $cookie_line);
        $cookie = array();
        preg_match('/\s*(.*?)\s*=(.*)/', array_shift($parts), $cookie);
        foreach ($parts as $part) {
            if (preg_match('/\s*(.*?)\s*=(.*)/', $part, $matches)) {
                $cookie[$matches[1]] = trim($matches[2]);
            }
        }
        return new SimpleCookie(
                $cookie[1],
                trim($cookie[2]),
                isset($cookie["path"]) ? $cookie["path"] : "",
                isset($cookie["expires"]) ? $cookie["expires"] : false);
    }
}

/**
 *    Basic HTTP response.
 *    @package SimpleTest
 *    @subpackage WebTester
 */
class SimpleHttpResponse extends SimpleStickyError {
    var $_url;
    var $_encoding;
    var $_sent;
    var $_content;
    var $_headers;
    
    /**
     *    Constructor. Reads and parses the incoming
     *    content and headers.
     *    @param SimpleSocket $socket   Network connection to fetch
     *                                  response text from.
     *    @param SimpleUrl $url         Resource name.
     *    @param mixed $encoding        Record of content sent.
     *    @access public
     */
    function SimpleHttpResponse(&$socket, $url, $encoding) {
        $this->SimpleStickyError();
        $this->_url = $url;
        $this->_encoding = $encoding;
        $this->_sent = $socket->getSent();
        $this->_content = false;
        $raw = $this->_readAll($socket);
        if ($socket->isError()) {
            $this->_setError('Error reading socket [' . $socket->getError() . ']');
            return;
        }
        $this->_parse($raw);
    }
    
    /**
     *    Splits up the headers and the rest of the content.
     *    @param string $raw    Content to parse.
     *    @access private
     */
    function _parse($raw) {
        if (! $raw) {
            $this->_setError('Nothing fetched');
            $this->_headers = &new SimpleHttpHeaders('');
        } elseif (! strstr($raw, "\r\n\r\n")) {
            $this->_setError('Could not split headers from content');
            $this->_headers = &new SimpleHttpHeaders($raw);
        } else {
            list($headers, $this->_content) = split("\r\n\r\n", $raw, 2);
            $this->_headers = &new SimpleHttpHeaders($headers);
        }
    }
    
    /**
     *    Original request method.
     *    @return string        GET, POST or HEAD.
     *    @access public
     */
    function getMethod() {
        return $this->_encoding->getMethod();
    }
    
    /**
     *    Resource name.
     *    @return SimpleUrl        Current url.
     *    @access public
     */
    function getUrl() {
        return $this->_url;
    }
    
    /**
     *    Original request data.
     *    @return mixed              Sent content.
     *    @access public
     */
    function getRequestData() {
        return $this->_encoding;
    }
    
    /**
     *    Raw request that was sent down the wire.
     *    @return string        Bytes actually sent.
     *    @access public
     */
    function getSent() {
        return $this->_sent;
    }
    
    /**
     *    Accessor for the content after the last
     *    header line.
     *    @return string           All content.
     *    @access public
     */
    function getContent() {
        return $this->_content;
    }
    
    /**
     *    Accessor for header block. The response is the
     *    combination of this and the content.
     *    @return SimpleHeaders        Wrapped header block.
     *    @access public
     */
    function getHeaders() {
        return $this->_headers;
    }
    
    /**
     *    Accessor for any new cookies.
     *    @return array       List of new cookies.
     *    @access public
     */
    function getNewCookies() {
        return $this->_headers->getNewCookies();
    }
    
    /**
     *    Reads the whole of the socket output into a
     *    single string.
     *    @param SimpleSocket $socket  Unread socket.
     *    @return string               Raw output if successful
     *                                 else false.
     *    @access private
     */
    function _readAll(&$socket) {
        $all = '';
        while (! $this->_isLastPacket($next = $socket->read())) {
            $all .= $next;
        }
        return $all;
    }
    
    /**
     *    Test to see if the packet from the socket is the
     *    last one.
     *    @param string $packet    Chunk to interpret.
     *    @return boolean          True if empty or EOF.
     *    @access private
     */
    function _isLastPacket($packet) {
        if (is_string($packet)) {
            return $packet === '';
        }
        return ! $packet;
    }
}
?>