Viewing file:  rcube_html_page.php (8.18 KB) -rwxr-xr-x
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<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_html_page.php |
| |
| This file is part of the RoundCube PHP suite |
| Copyright (C) 2005-2009, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| CONTENTS: |
| Class to build XHTML page output |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
+-----------------------------------------------------------------------+
$Id: $
*/
/**
* Class for HTML page creation
*
* @package HTML
*/
class rcube_html_page
{
protected $scripts_path = '';
protected $script_files = array();
protected $scripts = array();
protected $charset = RCMAIL_CHARSET;
protected $script_tag_file = "<script type=\"text/javascript\" src=\"%s\"></script>\n";
protected $script_tag = "<script type=\"text/javascript\">\n/* <![CDATA[ */\n%s\n/* ]]> */\n</script>";
protected $default_template = "<html>\n<head><title></title></head>\n<body></body>\n</html>";
protected $title = '';
protected $header = '';
protected $footer = '';
protected $body = '';
/** Constructor */
public function __construct() {}
/**
* Link an external script file
*
* @param string File URL
* @param string Target position [head|foot]
*/
public function include_script($file, $position='head')
{
static $sa_files = array();
if (!preg_match('|^https?://|i', $file) && $file[0] != '/')
$file = $this->scripts_path . $file . (($fs = @filemtime($this->scripts_path . $file)) ? '?s='.$fs : '');
if (in_array($file, $sa_files)) {
return;
}
if (!is_array($this->script_files[$position])) {
$this->script_files[$position] = array();
}
$this->script_files[$position][] = $file;
}
/**
* Add inline javascript code
*
* @param string JS code snippet
* @param string Target position [head|head_top|foot]
*/
public function add_script($script, $position='head')
{
if (!isset($this->scripts[$position])) {
$this->scripts[$position] = "\n".rtrim($script);
} else {
$this->scripts[$position] .= "\n".rtrim($script);
}
}
/**
* Add HTML code to the page header
*/
public function add_header($str)
{
$this->header .= "\n".$str;
}
/**
* Add HTML code to the page footer
* To be added right befor </body>
*/
public function add_footer($str)
{
$this->footer .= "\n".$str;
}
/**
* Setter for page title
*/
public function set_title($t)
{
$this->title = $t;
}
/**
* Setter for output charset.
* To be specified in a meta tag and sent as http-header
*/
public function set_charset($charset)
{
$this->charset = $charset;
}
/**
* Getter for output charset
*/
public function get_charset()
{
return $this->charset;
}
/**
* Reset all saved properties
*/
public function reset()
{
$this->script_files = array();
$this->scripts = array();
$this->title = '';
$this->header = '';
$this->footer = '';
$this->body = '';
}
/**
* Process template and write to stdOut
*
* @param string HTML template
* @param string Base for absolute paths
*/
public function write($templ='', $base_path='')
{
$output = empty($templ) ? $this->default_template : trim($templ);
// set default page title
if (empty($this->title)) {
$this->title = 'RoundCube Mail';
}
// replace specialchars in content
$__page_title = Q($this->title, 'show', FALSE);
$__page_header = $__page_body = $__page_footer = '';
// include meta tag with charset
if (!empty($this->charset)) {
if (!headers_sent()) {
header('Content-Type: text/html; charset=' . $this->charset);
}
$__page_header = '<meta http-equiv="content-type"';
$__page_header.= ' content="text/html; charset=';
$__page_header.= $this->charset . '" />'."\n";
}
// definition of the code to be placed in the document header and footer
if (is_array($this->script_files['head'])) {
foreach ($this->script_files['head'] as $file) {
$__page_header .= sprintf($this->script_tag_file, $file);
}
}
$head_script = $this->scripts['head_top'] . $this->scripts['head'];
if (!empty($head_script)) {
$__page_header .= sprintf($this->script_tag, $head_script);
}
if (!empty($this->header)) {
$__page_header .= $this->header;
}
if (is_array($this->script_files['foot'])) {
foreach ($this->script_files['foot'] as $file) {
$__page_footer .= sprintf($this->script_tag_file, $file);
}
}
if (!empty($this->scripts['foot'])) {
$__page_footer .= sprintf($this->script_tag, $this->scripts['foot']);
}
if (!empty($this->footer)) {
$__page_footer .= $this->footer;
}
// find page header
if ($hpos = strpos(strtolower($output), '</head>')) {
$__page_header .= "\n";
}
else {
if (!is_numeric($hpos)) {
$hpos = strpos(strtolower($output), '<body');
}
if (!is_numeric($hpos) && ($hpos = strpos(strtolower($output), '<html'))) {
while ($output[$hpos] != '>') {
$hpos++;
}
$hpos++;
}
$__page_header = "<head>\n<title>$__page_title</title>\n$__page_header\n</head>\n";
}
// add page hader
if ($hpos) {
$output = substr($output,0,$hpos) . $__page_header . substr($output,$hpos,strlen($output));
}
else {
$output = $__page_header . $output;
}
// find page body
if ($bpos = strpos(strtolower($output), '<body')) {
while ($output[$bpos] != '>') {
$bpos++;
}
$bpos++;
}
else {
$bpos = strpos(strtolower($output), '</head>')+7;
}
// add page body
if ($bpos && $__page_body) {
$output = substr($output,0,$bpos) . "\n$__page_body\n" . substr($output,$bpos,strlen($output));
}
// find and add page footer
$output_lc = strtolower($output);
if (($fpos = strrpos($output_lc, '</body>')) || ($fpos = strrpos($output_lc, '</html>'))) {
$output = substr($output, 0, $fpos) . "$__page_footer\n" . substr($output, $fpos);
}
else {
$output .= "\n".$__page_footer;
}
// reset those global vars
$__page_header = $__page_footer = '';
// correct absolute paths in images and other tags
$output = preg_replace('!(src|href|background)=(["\']?)(/[a-z0-9_-]+)!i', "\\1=\\2$base_path\\3", $output);
$output = preg_replace_callback('!(src|href)=(["\']?)([a-z0-9/_.-]+.(css|js))(["\'\s>])!i', array($this, 'add_filemtime'), $output);
$output = str_replace('$__skin_path', $base_path, $output);
if ($this->charset != RCMAIL_CHARSET)
echo rcube_charset_convert($output, RCMAIL_CHARSET, $this->charset);
else
echo $output;
}
/**
* Callback function for preg_replace_callback in write()
*/
public function add_filemtime($matches)
{
return sprintf("%s=%s%s?s=%d%s", $matches[1], $matches[2], $matches[3], @filemtime($matches[3]), $matches[5]);
}
}
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