Merge pull request #707 from mariroz/dev

update to 3.2 version of full-text-rss, issue #694

1 files changed, 403 insertions, 404 deletions

diff --git a/inc/3rdparty/libraries/humble-http-agent/CookieJar.php b/inc/3rdparty/libraries/humble-http-agent/CookieJar.php
index 83e94f14..e4d5f495 100644
--- a/inc/3rdparty/libraries/humble-http-agent/CookieJar.php
+++ b/inc/3rdparty/libraries/humble-http-agent/CookieJar.php
@@ -1,404 +1,403 @@
-<?php

-/**

- * Cookie Jar

- * 

- * PHP class for handling cookies, as defined by the Netscape spec: 

- * <http://curl.haxx.se/rfc/cookie_spec.html>

- *

- * This class should be used to handle cookies (storing cookies from HTTP response messages, and

- * sending out cookies in HTTP request messages). This has been adapted for FiveFilters.org 

- * from the original version used in HTTP Navigator. See http://www.keyvan.net/code/http-navigator/

- * 

- * This class is mainly based on Cookies.pm <http://search.cpan.org/author/GAAS/libwww-perl-5.65/

- * lib/HTTP/Cookies.pm> from the libwww-perl collection <http://www.linpro.no/lwp/>.

- * Unlike Cookies.pm, this class only supports the Netscape cookie spec, not RFC 2965.

- * 

- * @version 0.5

- * @date 2011-03-15

- * @see http://php.net/HttpRequestPool

- * @author Keyvan Minoukadeh

- * @copyright 2011 Keyvan Minoukadeh

- * @license http://www.gnu.org/licenses/agpl-3.0.html AGPL v3

- */

-

-class CookieJar

-{

-    /**

-    * Cookies - array containing all cookies.

-    *

-    * <pre>

-    * Cookies are stored like this:

-    *   [domain][path][name] = array

-    * where array is:

-    *   0 => value, 1 => secure, 2 => expires

-    * </pre>

-    * @var array

-    * @access private

-    */

-    public $cookies = array();

-        public $debug = false;

-

-    /**

-    * Constructor

-    */

-    function __construct() {

-    }

-

-        protected function debug($msg, $file=null, $line=null) {

-                if ($this->debug) {

-                        $mem = round(memory_get_usage()/1024, 2);

-                        $memPeak = round(memory_get_peak_usage()/1024, 2);

-                        echo '* ',$msg;

-                        if (isset($file, $line)) echo " ($file line $line)";

-                        echo ' - mem used: ',$mem," (peak: $memPeak)\n";        

-                        ob_flush();

-                        flush();

-                }

-        }       

-        

-    /**

-    * Get matching cookies

-    *

-    * Only use this method if you cannot use add_cookie_header(), for example, if you want to use

-    * this cookie jar class without using the request class.

-    *

-    * @param array $param associative array containing 'domain', 'path', 'secure' keys

-    * @return string

-    * @see add_cookie_header()

-    */

-    public function getMatchingCookies($url)

-    {

-                if (($parts = @parse_url($url)) && isset($parts['scheme'], $parts['host'], $parts['path'])) {

-                        $param['domain'] = $parts['host'];

-                        $param['path'] = $parts['path'];

-                        $param['secure'] = (strtolower($parts['scheme']) == 'https');

-                        unset($parts);

-                } else {

-                        return false;

-                }

-        // RFC 2965 notes:

-        //  If multiple cookies satisfy the criteria above, they are ordered in

-        //  the Cookie header such that those with more specific Path attributes

-        //  precede those with less specific.  Ordering with respect to other

-        //  attributes (e.g., Domain) is unspecified.

-        $domain = $param['domain'];

-        if (strpos($domain, '.') === false) $domain .= '.local';

-        $request_path = $param['path'];

-        if ($request_path == '') $request_path = '/';

-        $request_secure = $param['secure'];

-        $now = time();

-        $matched_cookies = array();

-        // domain - find matching domains

-        $this->debug('Finding matching domains for '.$domain, __FILE__, __LINE__);

-        while (strpos($domain, '.') !== false) {

-            if (isset($this->cookies[$domain])) {

-                $this->debug(' domain match found: '.$domain);

-                $cookies =& $this->cookies[$domain];

-            } else {

-                $domain = $this->_reduce_domain($domain);

-                continue;

-            }

-            // paths - find matching paths starting from most specific

-            $this->debug('  - Finding matching paths for '.$request_path);

-            $paths = array_keys($cookies);

-            usort($paths, array($this, '_cmp_length'));

-            foreach ($paths as $path) {

-                // continue to next cookie if request path does not path-match cookie path

-                if (!$this->_path_match($request_path, $path)) continue;

-                // loop through cookie names

-                $this->debug('     path match found: '.$path);

-                foreach ($cookies[$path] as $name => $values) {

-                    // if this cookie is secure but request isn't, continue to next cookie

-                    if ($values[1] && !$request_secure) continue;

-                    // if cookie is not a session cookie and has expired, continue to next cookie

-                    if (is_int($values[2]) && ($values[2] < $now)) continue;

-                    // cookie matches request

-                    $this->debug('      cookie match: '.$name.'='.$values[0]);

-                    $matched_cookies[] = $name.'='.$values[0];

-                }

-            }

-            $domain = $this->_reduce_domain($domain);

-        }

-        // return cookies

-        return implode('; ', $matched_cookies);

-    }

-

-    /**

-    * Parse Set-Cookie values.

-    *

-    * Only use this method if you cannot use extract_cookies(), for example, if you want to use

-    * this cookie jar class without using the response class.

-    *

-    * @param array $set_cookies array holding 1 or more "Set-Cookie" header values

-    * @param array $param associative array containing 'host', 'path' keys

-    * @return void

-    * @see extract_cookies()

-    */

-    public function storeCookies($url, $set_cookies)

-    {

-        if (count($set_cookies) == 0) return;

-                $param = @parse_url($url);

-                if (!is_array($param) || !isset($param['host'])) return;

-        $request_host = $param['host'];

-        if (strpos($request_host, '.') === false) $request_host .= '.local';

-        $request_path = @$param['path'];

-        if ($request_path == '') $request_path = '/';

-        //

-        // loop through set-cookie headers

-        //

-        foreach ($set_cookies as $set_cookie) {

-            $this->debug('Parsing: '.$set_cookie);

-            // temporary cookie store (before adding to jar)

-            $tmp_cookie = array();

-            $param = explode(';', $set_cookie);

-            // loop through params

-            for ($x=0; $x<count($param); $x++) {

-                $key_val = explode('=', $param[$x], 2);

-                if (count($key_val) != 2) {

-                    // if the first param isn't a name=value pair, continue to the next set-cookie

-                    // header

-                    if ($x == 0) continue 2;

-                    // check for secure flag

-                    if (strtolower(trim($key_val[0])) == 'secure') $tmp_cookie['secure'] = true;

-                    // continue to next param

-                    continue;

-                }

-                list($key, $val) = array_map('trim', $key_val);

-                // first name=value pair is the cookie name and value

-                // the name and value are stored under 'name' and 'value' to avoid conflicts

-                // with later parameters.

-                if ($x == 0) {

-                    $tmp_cookie = array('name'=>$key, 'value'=>$val);

-                    continue;

-                }

-                $key = strtolower($key);

-                if (in_array($key, array('expires', 'path', 'domain', 'secure'))) {

-                    $tmp_cookie[$key] = $val;

-                }

-            }

-            //

-            // set cookie

-            //

-            // check domain

-            if (isset($tmp_cookie['domain']) && ($tmp_cookie['domain'] != $request_host) &&

-                    ($tmp_cookie['domain'] != ".$request_host")) {

-                $domain = $tmp_cookie['domain'];

-                if ((strpos($domain, '.') === false) && ($domain != 'local')) {

-                    $this->debug(' - domain "'.$domain.'" has no dot and is not a local domain');

-                    continue;

-                }

-                if (preg_match('/\.[0-9]+$/', $domain)) {

-                    $this->debug(' - domain "'.$domain.'" appears to be an ip address');

-                    continue;

-                }

-                if (substr($domain, 0, 1) != '.') $domain = ".$domain";

-                if (!$this->_domain_match($request_host, $domain)) {

-                    $this->debug(' - request host "'.$request_host.'" does not domain-match "'.$domain.'"');

-                    continue;

-                }

-            } else {

-                // if domain is not specified in the set-cookie header, domain will default to

-                // the request host

-                $domain = $request_host;

-            }

-            // check path

-            if (isset($tmp_cookie['path']) && ($tmp_cookie['path'] != '')) {

-                $path = urldecode($tmp_cookie['path']);

-                if (!$this->_path_match($request_path, $path)) {

-                    $this->debug(' - request path "'.$request_path.'" does not path-match "'.$path.'"');

-                    continue;

-                }

-            } else {

-                $path = $request_path;

-                $path = substr($path, 0, strrpos($path, '/'));

-                if ($path == '') $path = '/';

-            }

-            // check if secure

-            $secure = (isset($tmp_cookie['secure'])) ? true : false;

-            // check expiry

-            if (isset($tmp_cookie['expires'])) {

-                if (($expires = strtotime($tmp_cookie['expires'])) < 0) {

-                    $expires = null;

-                }

-            } else {

-                $expires = null;

-            }

-            // set cookie

-            $this->set_cookie($domain, $path, $tmp_cookie['name'], $tmp_cookie['value'], $secure, $expires);

-        }

-    }

-        

-        // return array of set-cookie values extracted from HTTP response headers (string $h)

-        public function extractCookies($h) {

-        $x = 0;

-        $lines = 0;

-        $headers = array();

-        $last_match = false;

-                $h = explode("\n", $h);

-        foreach ($h as $line) {

-                        $line = rtrim($line);

-            $lines++;

-

-            $trimmed_line = trim($line);

-            if (isset($line_last)) {

-                // check if we have \r\n\r\n (indicating the end of headers)

-                // some servers will not use CRLF (\r\n), so we make CR (\r) optional.

-                // if (preg_match('/\015?\012\015?\012/', $line_last.$line)) {

-                //     break;

-                // }

-                // As an alternative, we can check if the current trimmed line is empty

-                if ($trimmed_line == '') {

-                    break;

-                }

-

-                // check for continuation line...

-                // RFC 2616 Section 2.2 "Basic Rules":

-                // HTTP/1.1 header field values can be folded onto multiple lines if the

-                // continuation line begins with a space or horizontal tab. All linear

-                // white space, including folding, has the same semantics as SP. A

-                // recipient MAY replace any linear white space with a single SP before

-                // interpreting the field value or forwarding the message downstream.

-                if ($last_match && preg_match('/^\s+(.*)/', $line, $match)) {

-                    // append to previous header value

-                    $headers[$x-1] .= ' '.rtrim($match[1]);

-                    continue;

-                }

-            }

-            $line_last = $line;

-

-            // split header name and value

-            if (preg_match('/^Set-Cookie\s*:\s*(.*)/i', $line, $match)) {

-                $headers[$x++] = rtrim($match[1]);

-                $last_match = true;

-            } else {

-                $last_match = false;

-            }

-        }

-        return $headers;

-        }

-

-    /**

-    * Set Cookie

-    * @param string $domain

-    * @param string $path

-    * @param string $name cookie name

-    * @param string $value cookie value

-    * @param bool $secure

-    * @param int $expires expiry time (null if session cookie, <= 0 will delete cookie)

-    * @return void

-    */

-    function set_cookie($domain, $path, $name, $value, $secure=false, $expires=null)

-    {

-        if ($domain == '') return;

-        if ($path == '') return;

-        if ($name == '') return;

-        // check if cookie needs to go

-        if (isset($expires) && ($expires <= 0)) {

-            if (isset($this->cookies[$domain][$path][$name])) unset($this->cookies[$domain][$path][$name]);

-            return;

-        }

-        if ($value == '') return;

-        $this->cookies[$domain][$path][$name] = array($value, $secure, $expires);

-        return;

-    }

-

-    /**

-    * Clear cookies - [domain [,path [,name]]] - call method with no arguments to clear all cookies.

-    * @param string $domain

-    * @param string $path

-    * @param string $name

-    * @return void

-    */

-    function clear($domain=null, $path=null, $name=null)

-    {

-        if (!isset($domain)) {

-            $this->cookies = array();

-        } elseif (!isset($path)) {

-            if (isset($this->cookies[$domain])) unset($this->cookies[$domain]);

-        } elseif (!isset($name)) {

-            if (isset($this->cookies[$domain][$path])) unset($this->cookies[$domain][$path]);

-        } elseif (isset($name)) {

-            if (isset($this->cookies[$domain][$path][$name])) unset($this->cookies[$domain][$path][$name]);

-        }

-    }

-

-    /**

-    * Compare string length - used for sorting

-    * @access private

-    * @return int

-    */

-    function _cmp_length($a, $b)

-    {

-        $la = strlen($a); $lb = strlen($b);

-        if ($la == $lb) return 0;

-        return ($la > $lb) ? -1 : 1;

-    }

-

-    /**

-    * Reduce domain

-    * @param string $domain

-    * @return string

-    * @access private

-    */

-    function _reduce_domain($domain)

-    {

-        if ($domain == '') return '';

-        if (substr($domain, 0, 1) == '.') return substr($domain, 1);

-        return substr($domain, strpos($domain, '.'));

-    }

-

-    /**

-    * Path match - check if path1 path-matches path2

-    *

-    * From RFC 2965: 

-    *   <i>For two strings that represent paths, P1 and P2, P1 path-matches P2

-    *   if P2 is a prefix of P1 (including the case where P1 and P2 string-

-    *   compare equal).  Thus, the string /tec/waldo path-matches /tec.</i>

-    * @param string $path1

-    * @param string $path2

-    * @return bool

-    * @access private

-    */

-    function _path_match($path1, $path2)

-    {

-        return (substr($path1, 0, strlen($path2)) == $path2);

-    }

-

-    /**

-    * Domain match - check if domain1 domain-matches domain2

-    *

-    * A few extracts from RFC 2965: 

-    *  -  A Set-Cookie2 from request-host y.x.foo.com for Domain=.foo.com

-    *     would be rejected, because H is y.x and contains a dot.

-    *

-    *  -  A Set-Cookie2 from request-host x.foo.com for Domain=.foo.com

-    *     would be accepted.

-    *

-    *  -  A Set-Cookie2 with Domain=.com or Domain=.com., will always be

-    *     rejected, because there is no embedded dot.

-    *

-    *  -  A Set-Cookie2 from request-host example for Domain=.local will

-    *     be accepted, because the effective host name for the request-

-    *     host is example.local, and example.local domain-matches .local.

-    *

-    * I'm ignoring the first point for now (must check to see how other browsers handle

-    * this rule for Set-Cookie headers)

-    *

-    * @param string $domain1

-    * @param string $domain2

-    * @return bool

-    * @access private

-    */

-    function _domain_match($domain1, $domain2)

-    {

-        $domain1 = strtolower($domain1);

-        $domain2 = strtolower($domain2);

-        while (strpos($domain1, '.') !== false) {

-            if ($domain1 == $domain2) return true;

-            $domain1 = $this->_reduce_domain($domain1);

-            continue;

-        }

-        return false;

-    }

-}

-?>
\ No newline at end of file
+<?php
+/**
+ * Cookie Jar
+ * 
+ * PHP class for handling cookies, as defined by the Netscape spec: 
+ * <http://curl.haxx.se/rfc/cookie_spec.html>
+ *
+ * This class should be used to handle cookies (storing cookies from HTTP response messages, and
+ * sending out cookies in HTTP request messages). This has been adapted for FiveFilters.org 
+ * from the original version used in HTTP Navigator. See http://www.keyvan.net/code/http-navigator/
+ * 
+ * This class is mainly based on Cookies.pm <http://search.cpan.org/author/GAAS/libwww-perl-5.65/
+ * lib/HTTP/Cookies.pm> from the libwww-perl collection <http://www.linpro.no/lwp/>.
+ * Unlike Cookies.pm, this class only supports the Netscape cookie spec, not RFC 2965.
+ * 
+ * @version 0.5
+ * @date 2011-03-15
+ * @see http://php.net/HttpRequestPool
+ * @author Keyvan Minoukadeh
+ * @copyright 2011 Keyvan Minoukadeh
+ * @license http://www.gnu.org/licenses/agpl-3.0.html AGPL v3
+ */
+
+class CookieJar
+{
+    /**
+    * Cookies - array containing all cookies.
+    *
+    * <pre>
+    * Cookies are stored like this:
+    *   [domain][path][name] = array
+    * where array is:
+    *   0 => value, 1 => secure, 2 => expires
+    * </pre>
+    * @var array
+    * @access private
+    */
+    public $cookies = array();
+        public $debug = false;
+
+    /**
+    * Constructor
+    */
+    function __construct() {
+    }
+
+        protected function debug($msg, $file=null, $line=null) {
+                if ($this->debug) {
+                        $mem = round(memory_get_usage()/1024, 2);
+                        $memPeak = round(memory_get_peak_usage()/1024, 2);
+                        echo '* ',$msg;
+                        if (isset($file, $line)) echo " ($file line $line)";
+                        echo ' - mem used: ',$mem," (peak: $memPeak)\n";        
+                        ob_flush();
+                        flush();
+                }
+        }       
+        
+    /**
+    * Get matching cookies
+    *
+    * Only use this method if you cannot use add_cookie_header(), for example, if you want to use
+    * this cookie jar class without using the request class.
+    *
+    * @param array $param associative array containing 'domain', 'path', 'secure' keys
+    * @return string
+    * @see add_cookie_header()
+    */
+    public function getMatchingCookies($url)
+    {
+                if (($parts = @parse_url($url)) && isset($parts['scheme'], $parts['host'], $parts['path'])) {
+                        $param['domain'] = $parts['host'];
+                        $param['path'] = $parts['path'];
+                        $param['secure'] = (strtolower($parts['scheme']) == 'https');
+                        unset($parts);
+                } else {
+                        return false;
+                }
+        // RFC 2965 notes:
+        //  If multiple cookies satisfy the criteria above, they are ordered in
+        //  the Cookie header such that those with more specific Path attributes
+        //  precede those with less specific.  Ordering with respect to other
+        //  attributes (e.g., Domain) is unspecified.
+        $domain = $param['domain'];
+        if (strpos($domain, '.') === false) $domain .= '.local';
+        $request_path = $param['path'];
+        if ($request_path == '') $request_path = '/';
+        $request_secure = $param['secure'];
+        $now = time();
+        $matched_cookies = array();
+        // domain - find matching domains
+        $this->debug('Finding matching domains for '.$domain, __FILE__, __LINE__);
+        while (strpos($domain, '.') !== false) {
+            if (isset($this->cookies[$domain])) {
+                $this->debug(' domain match found: '.$domain);
+                $cookies =& $this->cookies[$domain];
+            } else {
+                $domain = $this->_reduce_domain($domain);
+                continue;
+            }
+            // paths - find matching paths starting from most specific
+            $this->debug('  - Finding matching paths for '.$request_path);
+            $paths = array_keys($cookies);
+            usort($paths, array($this, '_cmp_length'));
+            foreach ($paths as $path) {
+                // continue to next cookie if request path does not path-match cookie path
+                if (!$this->_path_match($request_path, $path)) continue;
+                // loop through cookie names
+                $this->debug('     path match found: '.$path);
+                foreach ($cookies[$path] as $name => $values) {
+                    // if this cookie is secure but request isn't, continue to next cookie
+                    if ($values[1] && !$request_secure) continue;
+                    // if cookie is not a session cookie and has expired, continue to next cookie
+                    if (is_int($values[2]) && ($values[2] < $now)) continue;
+                    // cookie matches request
+                    $this->debug('      cookie match: '.$name.'='.$values[0]);
+                    $matched_cookies[] = $name.'='.$values[0];
+                }
+            }
+            $domain = $this->_reduce_domain($domain);
+        }
+        // return cookies
+        return implode('; ', $matched_cookies);
+    }
+
+    /**
+    * Parse Set-Cookie values.
+    *
+    * Only use this method if you cannot use extract_cookies(), for example, if you want to use
+    * this cookie jar class without using the response class.
+    *
+    * @param array $set_cookies array holding 1 or more "Set-Cookie" header values
+    * @param array $param associative array containing 'host', 'path' keys
+    * @return void
+    * @see extract_cookies()
+    */
+    public function storeCookies($url, $set_cookies)
+    {
+        if (count($set_cookies) == 0) return;
+                $param = @parse_url($url);
+                if (!is_array($param) || !isset($param['host'])) return;
+        $request_host = $param['host'];
+        if (strpos($request_host, '.') === false) $request_host .= '.local';
+        $request_path = @$param['path'];
+        if ($request_path == '') $request_path = '/';
+        //
+        // loop through set-cookie headers
+        //
+        foreach ($set_cookies as $set_cookie) {
+            $this->debug('Parsing: '.$set_cookie);
+            // temporary cookie store (before adding to jar)
+            $tmp_cookie = array();
+            $param = explode(';', $set_cookie);
+            // loop through params
+            for ($x=0; $x<count($param); $x++) {
+                $key_val = explode('=', $param[$x], 2);
+                if (count($key_val) != 2) {
+                    // if the first param isn't a name=value pair, continue to the next set-cookie
+                    // header
+                    if ($x == 0) continue 2;
+                    // check for secure flag
+                    if (strtolower(trim($key_val[0])) == 'secure') $tmp_cookie['secure'] = true;
+                    // continue to next param
+                    continue;
+                }
+                list($key, $val) = array_map('trim', $key_val);
+                // first name=value pair is the cookie name and value
+                // the name and value are stored under 'name' and 'value' to avoid conflicts
+                // with later parameters.
+                if ($x == 0) {
+                    $tmp_cookie = array('name'=>$key, 'value'=>$val);
+                    continue;
+                }
+                $key = strtolower($key);
+                if (in_array($key, array('expires', 'path', 'domain', 'secure'))) {
+                    $tmp_cookie[$key] = $val;
+                }
+            }
+            //
+            // set cookie
+            //
+            // check domain
+            if (isset($tmp_cookie['domain']) && ($tmp_cookie['domain'] != $request_host) &&
+                    ($tmp_cookie['domain'] != ".$request_host")) {
+                $domain = $tmp_cookie['domain'];
+                if ((strpos($domain, '.') === false) && ($domain != 'local')) {
+                    $this->debug(' - domain "'.$domain.'" has no dot and is not a local domain');
+                    continue;
+                }
+                if (preg_match('/\.[0-9]+$/', $domain)) {
+                    $this->debug(' - domain "'.$domain.'" appears to be an ip address');
+                    continue;
+                }
+                if (substr($domain, 0, 1) != '.') $domain = ".$domain";
+                if (!$this->_domain_match($request_host, $domain)) {
+                    $this->debug(' - request host "'.$request_host.'" does not domain-match "'.$domain.'"');
+                    continue;
+                }
+            } else {
+                // if domain is not specified in the set-cookie header, domain will default to
+                // the request host
+                $domain = $request_host;
+            }
+            // check path
+            if (isset($tmp_cookie['path']) && ($tmp_cookie['path'] != '')) {
+                $path = urldecode($tmp_cookie['path']);
+                if (!$this->_path_match($request_path, $path)) {
+                    $this->debug(' - request path "'.$request_path.'" does not path-match "'.$path.'"');
+                    continue;
+                }
+            } else {
+                $path = $request_path;
+                $path = substr($path, 0, strrpos($path, '/'));
+                if ($path == '') $path = '/';
+            }
+            // check if secure
+            $secure = (isset($tmp_cookie['secure'])) ? true : false;
+            // check expiry
+            if (isset($tmp_cookie['expires'])) {
+                if (($expires = strtotime($tmp_cookie['expires'])) < 0) {
+                    $expires = null;
+                }
+            } else {
+                $expires = null;
+            }
+            // set cookie
+            $this->set_cookie($domain, $path, $tmp_cookie['name'], $tmp_cookie['value'], $secure, $expires);
+        }
+    }
+        
+        // return array of set-cookie values extracted from HTTP response headers (string $h)
+        public function extractCookies($h) {
+        $x = 0;
+        $lines = 0;
+        $headers = array();
+        $last_match = false;
+                $h = explode("\n", $h);
+        foreach ($h as $line) {
+                        $line = rtrim($line);
+            $lines++;
+
+            $trimmed_line = trim($line);
+            if (isset($line_last)) {
+                // check if we have \r\n\r\n (indicating the end of headers)
+                // some servers will not use CRLF (\r\n), so we make CR (\r) optional.
+                // if (preg_match('/\015?\012\015?\012/', $line_last.$line)) {
+                //     break;
+                // }
+                // As an alternative, we can check if the current trimmed line is empty
+                if ($trimmed_line == '') {
+                    break;
+                }
+
+                // check for continuation line...
+                // RFC 2616 Section 2.2 "Basic Rules":
+                // HTTP/1.1 header field values can be folded onto multiple lines if the
+                // continuation line begins with a space or horizontal tab. All linear
+                // white space, including folding, has the same semantics as SP. A
+                // recipient MAY replace any linear white space with a single SP before
+                // interpreting the field value or forwarding the message downstream.
+                if ($last_match && preg_match('/^\s+(.*)/', $line, $match)) {
+                    // append to previous header value
+                    $headers[$x-1] .= ' '.rtrim($match[1]);
+                    continue;
+                }
+            }
+            $line_last = $line;
+
+            // split header name and value
+            if (preg_match('/^Set-Cookie\s*:\s*(.*)/i', $line, $match)) {
+                $headers[$x++] = rtrim($match[1]);
+                $last_match = true;
+            } else {
+                $last_match = false;
+            }
+        }
+        return $headers;
+        }
+
+    /**
+    * Set Cookie
+    * @param string $domain
+    * @param string $path
+    * @param string $name cookie name
+    * @param string $value cookie value
+    * @param bool $secure
+    * @param int $expires expiry time (null if session cookie, <= 0 will delete cookie)
+    * @return void
+    */
+    function set_cookie($domain, $path, $name, $value, $secure=false, $expires=null)
+    {
+        if ($domain == '') return;
+        if ($path == '') return;
+        if ($name == '') return;
+        // check if cookie needs to go
+        if (isset($expires) && ($expires <= 0)) {
+            if (isset($this->cookies[$domain][$path][$name])) unset($this->cookies[$domain][$path][$name]);
+            return;
+        }
+        if ($value == '') return;
+        $this->cookies[$domain][$path][$name] = array($value, $secure, $expires);
+        return;
+    }
+
+    /**
+    * Clear cookies - [domain [,path [,name]]] - call method with no arguments to clear all cookies.
+    * @param string $domain
+    * @param string $path
+    * @param string $name
+    * @return void
+    */
+    function clear($domain=null, $path=null, $name=null)
+    {
+        if (!isset($domain)) {
+            $this->cookies = array();
+        } elseif (!isset($path)) {
+            if (isset($this->cookies[$domain])) unset($this->cookies[$domain]);
+        } elseif (!isset($name)) {
+            if (isset($this->cookies[$domain][$path])) unset($this->cookies[$domain][$path]);
+        } elseif (isset($name)) {
+            if (isset($this->cookies[$domain][$path][$name])) unset($this->cookies[$domain][$path][$name]);
+        }
+    }
+
+    /**
+    * Compare string length - used for sorting
+    * @access private
+    * @return int
+    */
+    function _cmp_length($a, $b)
+    {
+        $la = strlen($a); $lb = strlen($b);
+        if ($la == $lb) return 0;
+        return ($la > $lb) ? -1 : 1;
+    }
+
+    /**
+    * Reduce domain
+    * @param string $domain
+    * @return string
+    * @access private
+    */
+    function _reduce_domain($domain)
+    {
+        if ($domain == '') return '';
+        if (substr($domain, 0, 1) == '.') return substr($domain, 1);
+        return substr($domain, strpos($domain, '.'));
+    }
+
+    /**
+    * Path match - check if path1 path-matches path2
+    *
+    * From RFC 2965: 
+    *   <i>For two strings that represent paths, P1 and P2, P1 path-matches P2
+    *   if P2 is a prefix of P1 (including the case where P1 and P2 string-
+    *   compare equal).  Thus, the string /tec/waldo path-matches /tec.</i>
+    * @param string $path1
+    * @param string $path2
+    * @return bool
+    * @access private
+    */
+    function _path_match($path1, $path2)
+    {
+        return (substr($path1, 0, strlen($path2)) == $path2);
+    }
+
+    /**
+    * Domain match - check if domain1 domain-matches domain2
+    *
+    * A few extracts from RFC 2965: 
+    *  -  A Set-Cookie2 from request-host y.x.foo.com for Domain=.foo.com
+    *     would be rejected, because H is y.x and contains a dot.
+    *
+    *  -  A Set-Cookie2 from request-host x.foo.com for Domain=.foo.com
+    *     would be accepted.
+    *
+    *  -  A Set-Cookie2 with Domain=.com or Domain=.com., will always be
+    *     rejected, because there is no embedded dot.
+    *
+    *  -  A Set-Cookie2 from request-host example for Domain=.local will
+    *     be accepted, because the effective host name for the request-
+    *     host is example.local, and example.local domain-matches .local.
+    *
+    * I'm ignoring the first point for now (must check to see how other browsers handle
+    * this rule for Set-Cookie headers)
+    *
+    * @param string $domain1
+    * @param string $domain2
+    * @return bool
+    * @access private
+    */
+    function _domain_match($domain1, $domain2)
+    {
+        $domain1 = strtolower($domain1);
+        $domain2 = strtolower($domain2);
+        while (strpos($domain1, '.') !== false) {
+            if ($domain1 == $domain2) return true;
+            $domain1 = $this->_reduce_domain($domain1);
+            continue;
+        }
+        return false;
+    }
+}
\ No newline at end of file