PHP is_browser函数代码示例

/**
* Returns the maximum compatible editor mode depending on permissions, options and browser
*
* @param	integer	The requested editor mode (-1 = user default, 0 = simple textarea, 1 = standard editor controls, 2 = wysiwyg controls)
* @param	string	Editor type (full = 'fe', quick reply = 'qr')
*
* @return	integer	The maximum possible mode (0, 1, 2)
*/
function is_wysiwyg_compatible($userchoice = -1, $editormode = 'fe')
{
    global $vbulletin;
    // Netscape 4... don't even bother to check user choice as the toolbars won't work
    if (is_browser('netscape') or is_browser('webtv')) {
        return 0;
    }
    // check for a standard setting
    if ($userchoice == -1) {
        $userchoice = $vbulletin->userinfo['showvbcode'];
    }
    // unserialize the option if we need to
    if (!is_array($vbulletin->options['editormodes_array'])) {
        $vbulletin->options['editormodes_array'] = unserialize($vbulletin->options['editormodes']);
    }
    // make sure we have a valid editor mode to check
    switch ($editormode) {
        case 'fe':
        case 'qr':
        case 'qe':
            break;
        default:
            $editormode = 'fe';
    }
    // check board options for toolbar permissions
    if ($userchoice > $vbulletin->options['editormodes_array']["{$editormode}"]) {
        $choice = $vbulletin->options['editormodes_array']["{$editormode}"];
    } else {
        $choice = $userchoice;
    }
    // Legacy Hook 'editor_wysiwyg_compatible' Removed //
    if ($choice == 2) {
        if (!is_browser('opera') or is_browser('opera', '9.0')) {
            // Check Mozilla Browsers
            if (is_browser('firebird', '0.6.1') or is_browser('camino', '0.9') or is_browser('mozilla', '20030312') and !is_browser('firebird') and !is_browser('camino')) {
                return 2;
            } else {
                if (is_browser('ie', '5.5') and !is_browser('mac')) {
                    return 2;
                } else {
                    if (false and is_browser('opera', '9.0')) {
                        return 2;
                    } else {
                        return 1;
                    }
                }
            }
        } else {
            // browser is incompatible - return standard toolbar
            return 1;
        }
    } else {
        // return standard or no toolbar
        return $choice;
    }
}

/**
 * @param        $browser
 * @param string $content
 *
 * @return bool|string
 */
function is_browser_shorcode($browser, $content = "") {
	$browser = shortcode_atts(array(
		'name'    => '',
		'version' => ''
	), $browser, 'is_browser');

	if (is_browser($browser['name'], $browser['version'])) {
		return ($content);
	} else {
		return FALSE;
	}
}

function construct_nav_option($title, $url)
{
    // creates an <option> or <a href for the left-panel of index.php
    // (depending on value of $cpnavjs)
    // NOTE: '&' . $vbulletin->session->vars['sessionurl'] will be AUTOMATICALLY added to the URL - do not add to your link!
    global $vbulletin, $options;
    static $sessionlink, $bubblefix;
    if (!isset($options)) {
        $options = array();
        if ($vbulletin->session->vars['sessionurl'] == '') {
            $sessionlink = '';
        } else {
            $sessionlink = "&amp;s=" . $vbulletin->session->vars['sessionhash'];
        }
        // only include the bubble-fix for IE - ignore when encountering the Konqueror/Safari event model
        if (is_browser('ie')) {
            $bubblefix = ' onclick="nobub()"';
        } else {
            $bubblefix = '';
        }
    }
    $options[] = "\t\t<div class=\"navlink-normal\" onclick=\"nav_goto('{$url}{$sessionlink}');\" onmouseover=\"this.className='navlink-hover';\" onmouseout=\"this.className='navlink-normal'\"><a href=\"{$url}{$sessionlink}\"{$bubblefix}>{$title}</a></div>\n";
}

 /**
  * Constructor. Sets up the tag list.
  *
  * @param	vB_Registry	Reference to registry object
  * @param	array		List of tags to parse
  * @param	boolean		Whether to append custom tags (they will not be parsed anyway)
  */
 function vB_BbCodeParser_Wysiwyg(&$registry, $tag_list = array(), $append_custom_tags = true)
 {
     parent::vB_BbCodeParser($registry, $tag_list, $append_custom_tags);
     // change all unparsable tags to use the unparsable callback
     foreach ($this->unparsed_tags as $remove) {
         if (isset($this->tag_list['option']["{$remove}"])) {
             $this->tag_list['option']["{$remove}"]['callback'] = 'handle_wysiwyg_unparsable';
             unset($this->tag_list['option']["{$remove}"]['html'], $this->tag_list['option']["{$remove}"]['strip_space_after']);
         }
         if (isset($this->tag_list['no_option']["{$remove}"])) {
             $this->tag_list['no_option']["{$remove}"]['callback'] = 'handle_wysiwyg_unparsable';
             unset($this->tag_list['no_option']["{$remove}"]['html'], $this->tag_list['option']["{$remove}"]['strip_space_after']);
         }
     }
     // make the "pre" tags use the correct handler
     foreach (array('code', 'php', 'html') as $pre_tag) {
         if (isset($this->tag_list['no_option']["{$pre_tag}"])) {
             $this->tag_list['no_option']["{$pre_tag}"]['callback'] = 'handle_preformatted_tag';
             unset($this->tag_list['no_option']["{$pre_tag}"]['html'], $this->tag_list['option']["{$pre_tag}"]['strip_space_after']);
         }
     }
     $this->type = is_browser('ie') ? 'ie' : 'moz_css';
 }

/**
 * Helper function for fetching the line end format.
 *
 * @return String 'win', 'unix', or 'mac' based on the user's browser..
 */
function get_line_end_format()
{
    if (is_browser('win')) {
        return 'win';
    } elseif (is_browser('unix')) {
        return 'unix';
    } elseif (is_browser('mac')) {
        return 'mac';
    } else {
        return 'unix';
    }
}

function file_download($filestring, $filename, $filetype = 'application/octet-stream')
{
    if (!isset($isIE)) {
        static $isIE;
        $isIE = iif(is_browser('ie') or is_browser('opera'), true, false);
    }
    if ($isIE and $filetype == 'application/octet-stream') {
        $filetype = 'application/octetstream';
    }
    if (preg_match('~&#([0-9]+);~', $filename)) {
        if (function_exists('iconv')) {
            $filename = @iconv(vB_Template_Runtime::fetchStyleVar('charset'), 'UTF-8//IGNORE', $filename);
        }
        $filename = preg_replace_callback('~&#([0-9]+);~', 'convert_int_to_utf8_callback', $filename);
        $filename_charset = 'utf-8';
    } else {
        $filename_charset = vB_Template_Runtime::fetchStyleVar('charset');
    }
    $filename = preg_replace('#[\\r\\n]#', '', $filename);
    // Opera and IE have not a clue about this, mozilla puts on incorrect extensions.
    if (is_browser('mozilla')) {
        $filename = "filename*=" . $filename_charset . "''" . rawurlencode($filename);
    } else {
        // other browsers seem to want names in UTF-8
        if ($filename_charset != 'utf-8' and function_exists('iconv')) {
            $filename = @iconv($filename_charset, 'UTF-8//IGNORE', $filename);
        }
        // Should just make this (!is_browser('ie'))
        if (is_browser('opera') or is_browser('konqueror') or is_browser('safari')) {
            // Opera / konqueror does not support encoded file names
            $filename = 'filename="' . str_replace('"', '', $filename) . '"';
        } else {
            // encode the filename to stay within spec
            $filename = 'filename="' . rawurlencode($filename) . '"';
        }
    }
    header('Content-Type: ' . $filetype);
    header('Expires: ' . gmdate('D, d M Y H:i:s') . ' GMT');
    header('Content-Disposition: attachment; ' . $filename);
    header('Content-Length: ' . strlen($filestring));
    header('Cache-Control: private, must-revalidate, post-check=0, pre-check=0');
    header('Pragma: public');
    echo $filestring;
    exit;
}

{
	$filename = "filename*=" . $filename_charset . "''" . rawurlencode($filename);
}
else
{
	// other browsers seem to want names in UTF-8
	if ($filename_charset != 'utf-8' AND function_exists('iconv'))
	{
		$filename_conv = iconv($filename_charset, 'UTF-8//IGNORE', $filename);
		if ($filename_conv !== false)
		{
			$filename = $filename_conv;
		}
	}

	if (is_browser('opera') OR is_browser('konqueror') OR is_browser('safari'))
	{
		// Opera / Konqueror does not support encoded file names
		$filename = 'filename="' . str_replace('"', '', $filename) . '"';
	}
	else
	{
		// encode the filename to stay within spec
		$filename = 'filename="' . rawurlencode($filename) . '"';
	}
}

if (in_array($extension, array('jpg', 'jpe', 'jpeg', 'gif', 'png')))
{
	header("Content-disposition: inline; $filename");
	header('Content-transfer-encoding: binary');

/**
* Prints a row containing template search javascript controls
*/
function print_template_javascript()
{
    global $stylevar, $vbphrase, $vbulletin;
    print_phrase_ref_popup_javascript();
    echo '<script type="text/javascript" src="../clientscript/vbulletin_templatemgr.js"></script>';
    echo '<script type="text/javascript">
<!--
	var textarea_id = "' . $vbulletin->textarea_id . '";
	var vbphrase = { \'not_found\' : "' . fetch_js_safe_string($vbphrase['not_found']) . '" };
// -->
</script>
';
    print_label_row(iif(is_browser('ie') or is_browser('mozilla', '20040707'), $vbphrase['search_in_template'], $vbphrase['additional_functions']), iif(is_browser('ie') or is_browser('mozilla', '1.7'), '
	<input type="text" class="bginput" name="string" accesskey="t" value="' . htmlspecialchars_uni($vbulletin->GPC['searchstring']) . '" size="20" onChange="n=0;" tabindex="1" />
	<input type="button" class="button" style="font-weight:normal" value=" ' . $vbphrase['find'] . ' " accesskey="f" onClick="findInPage(document.cpform.string.value);" tabindex="1" />
	&nbsp;') . '<input type="button" class="button" style="font-weight:normal" value=" ' . $vbphrase['copy'] . ' " accesskey="c" onclick="HighlightAll();" tabindex="1" />
	&nbsp;
	<input type="button" class="button" style="font-weight:normal" value="' . $vbphrase['view_quickref'] . '" accesskey="v" onclick="js_open_phrase_ref(0, 0);" tabindex="1" />
	');
}

 /**
  * Handles a [quote] tag. Displays a string in an area indicating it was quoted from someone/somewhere else.
  *
  * @param	string	The body of the quote.
  * @param	string	If tag has option, the original user to post.
  *
  * @return	string	HTML representation of the tag.
  */
 function handle_bbcode_quote($message, $username = '')
 {
     global $vbulletin, $vbphrase, $stylevar, $show;
     // remove smilies from username
     $username = $this->strip_smilies($username);
     if (preg_match('/^(.+)(?<!&#[0-9]{3}|&#[0-9]{4}|&#[0-9]{5});\\s*(\\d+)\\s*$/U', $username, $match)) {
         $username = $match[1];
         $postid = $match[2];
     } else {
         $postid = 0;
     }
     $username = $this->do_word_wrap($username);
     $show['username'] = iif($username != '', true, false);
     $message = $this->strip_front_back_whitespace($message, 1);
     if ($this->options['cachable'] == false) {
         $show['iewidthfix'] = (is_browser('ie') and !is_browser('ie', 6));
     } else {
         // this post may be cached, so we can't allow this "fix" to be included in that cache
         $show['iewidthfix'] = false;
     }
     $template = $this->printable ? 'bbcode_quote_printable' : 'bbcode_quote';
     eval('$html = "' . fetch_template($template) . '";');
     return $html;
 }

require_once CWD . '/includes/init.php';
$vbulletin->input->clean_array_gpc('r', array('referrerid' => TYPE_UINT, 'postid' => TYPE_UINT, 'threadid' => TYPE_UINT, 'forumid' => TYPE_INT, 'pollid' => TYPE_UINT, 'a' => TYPE_STR, 'mode' => TYPE_STR, 'nojs' => TYPE_BOOL));
$vbulletin->input->clean_array_gpc('p', array('ajax' => TYPE_BOOL));
// #############################################################################
// turn off popups if they are not available to this browser
if ($vbulletin->options['usepopups']) {
    if (is_browser('ie', 5) and !is_browser('mac') or is_browser('mozilla') or is_browser('firebird') or is_browser('opera', 7) or is_browser('webkit') or is_browser('konqueror', 3.2)) {
        // use popups
    } else {
        // don't use popups
        $vbulletin->options['usepopups'] = 0;
    }
}
// #############################################################################
// set a variable used by the spacer templates to detect IE versions less than 6
$show['old_explorer'] = (is_browser('ie') and !is_browser('ie', 6));
// #############################################################################
// read the list of collapsed menus from the 'vbulletin_collapse' cookie
$vbcollapse = array();
if (!empty($vbulletin->GPC['vbulletin_collapse'])) {
    $val = preg_split('#\\n#', $vbulletin->GPC['vbulletin_collapse'], -1, PREG_SPLIT_NO_EMPTY);
    foreach ($val as $key) {
        $vbcollapse["collapseobj_{$key}"] = 'display:none;';
        $vbcollapse["collapseimg_{$key}"] = '_collapsed';
        $vbcollapse["collapsecel_{$key}"] = '_collapsed';
    }
    unset($val);
}
// #############################################################################
// start server too busy
$servertoobusy = false;

 ($hook = kleeja_run_hook('down_go_page')) ? eval($hook) : null;
 //run hook
 //start download ,,
 if (!is_readable($path_file)) {
     ($hook = kleeja_run_hook('down_file_not_exists')) ? eval($hook) : null;
     //run hook
     big_error('----', 'Error - can not open file.');
 }
 if (!($size = @filesize($path_file))) {
     $size = $d_size;
 }
 $name = empty($rn) ? $n : $rn;
 if (is_browser('mozilla')) {
     $h_name = "filename*=UTF-8''" . rawurlencode(htmlspecialchars_decode($name));
 } else {
     if (is_browser('opera, safari, konqueror')) {
         $h_name = 'filename="' . str_replace('"', '', htmlspecialchars_decode($name)) . '"';
     } else {
         $h_name = 'filename="' . rawurlencode(htmlspecialchars_decode($name)) . '"';
     }
 }
 //Figure out the MIME type (if not specified)
 $ext = array_pop(explode('.', $path_file));
 $mime_type = get_mime_for_header($ext);
 if (@ob_get_length()) {
     @ob_end_clean();
 }
 // required for IE, otherwise Content-Disposition may be ignored
 if (@ini_get('zlib.output_compression')) {
     @ini_set('zlib.output_compression', 'Off');
 }

/**
* Browser detection
* returns whether or not the visiting browser is the one specified [part of kleeja style system]
* i.e. is_browser('ie6') -> true or false
* i.e. is_browser('ie, opera') -> true or false
*/
function is_browser($b)
{
    //is there , which mean -OR-
    if (strpos($b, ',') !== false) {
        $e = explode(',', $b);
        foreach ($e as $n) {
            if (is_browser(trim($n))) {
                return true;
            }
        }
        return false;
    }
    //if no agent, let's take the worst case
    $u_agent = !empty($_SERVER['HTTP_USER_AGENT']) ? htmlspecialchars((string) strtolower($_SERVER['HTTP_USER_AGENT'])) : (function_exists('getenv') ? getenv('HTTP_USER_AGENT') : '');
    $t = trim(preg_replace('/[0-9.]/', '', $b));
    $r = trim(preg_replace('/[a-z]/', '', $b));
    $return = false;
    switch ($t) {
        case 'ie':
            $return = strpos($u_agent, trim('msie ' . $r)) !== false ? true : false;
            break;
        case 'firefox':
            $return = strpos(str_replace('/', ' ', $u_agent), trim('firefox ' . $r)) !== false ? true : false;
            break;
        case 'safari':
            $return = strpos($u_agent, trim('safari/' . $r)) !== false ? true : false;
            break;
        case 'chrome':
            $return = strpos($u_agent, trim('chrome ' . $r)) !== false ? true : false;
            break;
        case 'flock':
            $return = strpos($u_agent, trim('flock ' . $r)) !== false ? true : false;
            break;
        case 'opera':
            $return = strpos($u_agent, trim('opera ' . $r)) !== false ? true : false;
            break;
        case 'konqueror':
            $return = strpos($u_agent, trim('konqueror/' . $r)) !== false ? true : false;
            break;
        case 'mozilla':
            $return = strpos($u_agent, trim('gecko/' . $r)) !== false ? true : false;
            break;
        case 'webkit':
            $return = strpos($u_agent, trim('applewebkit/' . $r)) !== false ? true : false;
            break;
            /**
             * Mobile Phones are so popular those days, so we have to support them ...
             * This is still in our test lab.
             * @see http://en.wikipedia.org/wiki/List_of_user_agents_for_mobile_phones
             **/
        /**
         * Mobile Phones are so popular those days, so we have to support them ...
         * This is still in our test lab.
         * @see http://en.wikipedia.org/wiki/List_of_user_agents_for_mobile_phones
         **/
        case 'mobile':
            $mobile_agents = array('iPhone;', 'iPod;', 'iPad;', 'BlackBerry', 'Android', 'HTC', 'IEMobile', 'LG/', 'LG-', 'LGE-', 'MOT-', 'Nokia', 'SymbianOS', 'nokia_', 'PalmSource', 'webOS', 'SAMSUNG-', 'SEC-SGHU', 'SonyEricsson');
            $return = false;
            foreach ($mobile_agents as $agent) {
                if (strpos($u_agent, $agent) !== false) {
                    $return = true;
                    break;
                }
            }
            break;
    }
    ($hook = kleeja_run_hook('is_browser_func')) ? eval($hook) : null;
    //run hook
    return $return;
}

/**
* Returns the maximum compatible editor mode depending on permissions, options and browser
*
* @param	integer	The requested editor mode (-1 = user default, 0 = simple textarea, 1 = standard editor controls, 2 = wysiwyg controls)
* @param	string	Editor type (full = 'fe', quick reply = 'qr')
*
* @return	integer	The maximum possible mode (0, 1, 2)
*/
function is_wysiwyg_compatible($userchoice = -1, $editormode = 'fe')
{
	global $vbulletin;

	// Netscape 4... don't even bother to check user choice as the toolbars won't work
	if (is_browser('netscape') OR is_browser('webtv'))
	{
		return 0;
	}

	// check for a standard setting
	if ($userchoice == -1)
	{
		$userchoice = $vbulletin->userinfo['showvbcode'];
	}

	// unserialize the option if we need to
	if (!is_array($vbulletin->options['editormodes_array']))
	{
		$vbulletin->options['editormodes_array'] = unserialize($vbulletin->options['editormodes']);
	}

	// make sure we have a valid editor mode to check
	switch ($editormode)
	{
		case 'fe':
		case 'qr':
		case 'qe':
			break;
		default:
			$editormode = 'fe';
	}

	// check board options for toolbar permissions
	if ($userchoice > $vbulletin->options['editormodes_array']["$editormode"])
	{
		$choice = $vbulletin->options['editormodes_array']["$editormode"];
	}
	else
	{
		$choice = $userchoice;
	}

	$hook_return = null;
	($hook = vBulletinHook::fetch_hook('editor_wysiwyg_compatible')) ? eval($hook) : false;
	if ($hook_return !== null)
	{
		return $hook_return;
	}

	if ($choice == 2) // attempting to use WYSIWYG, check that we really can
	{
		if (!is_browser('opera') OR is_browser('opera', '9.0'))
		{
			// Check Mozilla Browsers
			if (is_browser('firebird', '0.6.1') OR is_browser('camino', '0.9') OR (is_browser('mozilla', '20030312') AND !is_browser('firebird') AND !is_browser('camino')))
			{
				return 2;
			}
			else if (is_browser('ie', '5.5') AND !is_browser('mac'))
			{
				return 2;
			}
			else if (false AND is_browser('opera', '9.0'))
			{
				return 2;
			}
			else
			{
				return 1;
			}
		}
		else
		{
			// browser is incompatible - return standard toolbar
			return 1;
		}
	}
	else
	{
		// return standard or no toolbar
		return $choice;
	}
}

 /**
  * Cleans output to be parsed into the uri.
  * Setting $canonical is useful for creating redirect url's that cannot be
  * encoded for redirects.
  *
  * @param string $fragment
  * @param bool $canonical							- Whether to encode for output
  * @return string
  */
 public static function clean_fragment($fragment, $canonical = false)
 {
     global $vbulletin;
     if (class_exists('vBulletinHook', false)) {
         ($hook = vBulletinHook::fetch_hook('friendlyurl_clean_fragment')) ? eval($hook) : false;
     }
     // Convert to UTF-8
     if (self::UNI_CONVERT == $vbulletin->options['friendlyurl_unicode']) {
         // convert to UTF-8
         $fragment = to_utf8($fragment, $vbulletin->userinfo['lang_charset']);
         // convert NCRs
         $fragment = unhtmlspecialchars($fragment, true);
     } else {
         if (self::UNI_STRIP == $vbulletin->options['friendlyurl_unicode']) {
             // strip NCRs
             $fragment = stripncrs($fragment);
         }
     }
     // Remove url entities
     $fragment = self::clean_entities($fragment);
     // Prepare the URL for output
     if (!$canonical and self::UNI_CONVERT == $vbulletin->options['friendlyurl_unicode'] and 'UTF-8' != $vbulletin->userinfo['lang_charset']) {
         if (is_browser('ie')) {
             if ($vbulletin->options['friendlyurl_ncrencode']) {
                 $fragment = ncrencode($fragment, true);
             }
         } else {
             $fragment = urlencode($fragment);
         }
     } else {
         if ($canonical and self::UNI_IGNORE == $vbulletin->options['friendlyurl_unicode']) {
             // ensure NCRs are converted
             $fragment = unhtmlspecialchars($fragment, true);
         }
     }
     return $fragment;
 }

	);
	$messagearea = "
		<script type=\"text/javascript\">
		<!--
			var threaded_mode = $threadedmode;
			var require_click = $show[qr_require_click];
			var is_last_page = $show[allow_ajax_qr]; // leave for people with cached JS files
			var allow_ajax_qr = $show[allow_ajax_qr];
			var last_post_id = $LASTPOSTID;
			var ajax_last_post = " . intval($effective_lastpost) . ";
		// -->
		</script>
		$messagearea
	";

	if (is_browser('mozilla') AND $show['wysiwyg'] == 2)
	{
		// Mozilla WYSIWYG can't have the QR collapse button,
		// so remove that and force QR to be expanded
		$show['quickreply_collapse'] = false;

		unset(
			$vbcollapse["collapseobj_quickreply"],
			$vbcollapse["collapseimg_quickreply"],
			$vbcollapse["collapsecel_quickreply"]
		);
	}
	else
	{
		$show['quickreply_collapse'] = true;
	}