forked from extern/egroupware
488 lines
11 KiB
PHP
488 lines
11 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* phpGroupWare API - Template class *
|
|
* (C) Copyright 1999-2000 NetUSE GmbH Kristian Koehntopp *
|
|
* ------------------------------------------------------------------------ *
|
|
* This is not part of phpGroupWare, but is used by phpGroupWare. *
|
|
* http://www.phpgroupware.org/ *
|
|
* ------------------------------------------------------------------------ *
|
|
* This program is free software; you can redistribute it and/or modify it *
|
|
* under the terms of the GNU Lesser General Public License as published *
|
|
* by the Free Software Foundation; either version 2.1 of the License, or *
|
|
* any later version. *
|
|
\**************************************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
class Template
|
|
{
|
|
var $classname = 'Template';
|
|
|
|
/* if set, echo assignments */
|
|
var $debug = False;
|
|
|
|
/* $file[handle] = 'filename'; */
|
|
var $file = array();
|
|
|
|
/* relative filenames are relative to this pathname */
|
|
var $root = '';
|
|
|
|
/* $varkeys[key] = 'key'; $varvals[key] = 'value'; */
|
|
var $varkeys = array();
|
|
var $varvals = array();
|
|
|
|
/* 'remove' => remove undefined variables
|
|
* 'comment' => replace undefined variables with comments
|
|
* 'keep' => keep undefined variables
|
|
*/
|
|
var $unknowns = 'remove';
|
|
|
|
/* 'yes' => halt, 'report' => report error, continue, 'no' => ignore error quietly */
|
|
var $halt_on_error = 'yes';
|
|
|
|
/* last error message is retained here */
|
|
var $last_error = '';
|
|
|
|
/* Used to cut down performance problems with so many file_exists */
|
|
var $found_files;
|
|
/***************************************************************************/
|
|
/* public: Constructor.
|
|
* root: template directory.
|
|
* unknowns: how to handle unknown variables.
|
|
*/
|
|
function Template($root = '.', $unknowns = 'remove')
|
|
{
|
|
$this->set_root($root);
|
|
$this->set_unknowns($unknowns);
|
|
}
|
|
|
|
/* public: setroot(pathname $root)
|
|
* root: new template directory.
|
|
*/
|
|
function set_root($root)
|
|
{
|
|
if (!is_dir($root))
|
|
{
|
|
$this->halt("set_root: $root is not a directory.");
|
|
return false;
|
|
}
|
|
$this->root = $root;
|
|
return true;
|
|
}
|
|
|
|
/* public: set_unknowns(enum $unknowns)
|
|
* unknowns: 'remove', 'comment', 'keep'
|
|
*
|
|
*/
|
|
function set_unknowns($unknowns = 'keep')
|
|
{
|
|
$this->unknowns = $unknowns;
|
|
}
|
|
|
|
/* public: set_file(array $filelist)
|
|
* filelist: array of handle, filename pairs.
|
|
*
|
|
* public: set_file(string $handle, string $filename)
|
|
* handle: handle for a filename,
|
|
* filename: name of template file
|
|
*/
|
|
function set_file($handle, $filename = '')
|
|
{
|
|
if (!is_array($handle))
|
|
{
|
|
if ($filename == '')
|
|
{
|
|
$this->halt("set_file: For handle $handle filename is empty.");
|
|
return false;
|
|
}
|
|
$this->file[$handle] = $this->filename($filename);
|
|
}
|
|
else
|
|
{
|
|
reset($handle);
|
|
while(list($h, $f) = each($handle))
|
|
{
|
|
$this->file[$h] = $this->filename($f);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* public: set_block(string $parent, string $handle, string $name = '')
|
|
* extract the template $handle from $parent,
|
|
* place variable {$name} instead.
|
|
*/
|
|
function set_block($parent, $handle, $name = '')
|
|
{
|
|
if (!$this->loadfile($parent))
|
|
{
|
|
$this->halt("subst: unable to load $parent.");
|
|
return false;
|
|
}
|
|
if ($name == '')
|
|
{
|
|
$name = $handle;
|
|
}
|
|
$str = $this->get_var($parent);
|
|
$reg = "/<!--\s+BEGIN $handle\s+-->(.*)\n\s*<!--\s+END $handle\s+-->/sm";
|
|
preg_match_all($reg, $str, $m);
|
|
$str = preg_replace($reg, '{' . "$name}", $str);
|
|
$this->set_var($handle, $m[1][0]);
|
|
$this->set_var($parent, $str);
|
|
}
|
|
|
|
/* public: set_var(array $values)
|
|
* values: array of variable name, value pairs.
|
|
*
|
|
* public: set_var(string $varname, string $value)
|
|
* varname: name of a variable that is to be defined
|
|
* value: value of that variable
|
|
*/
|
|
function set_var($varname, $value = '')
|
|
{
|
|
if (!is_array($varname))
|
|
{
|
|
if (!empty($varname))
|
|
{
|
|
if ($this->debug)
|
|
{
|
|
print "scalar: set *$varname* to *$value*<br>\n";
|
|
}
|
|
$this->varkeys[$varname] = $this->varname($varname);
|
|
$this->varvals[$varname] = $value;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
reset($varname);
|
|
while(list($k, $v) = each($varname))
|
|
{
|
|
if (!empty($k))
|
|
{
|
|
if ($this->debug)
|
|
{
|
|
print "array: set *$k* to *$v*<br>\n";
|
|
}
|
|
$this->varkeys[$k] = $this->varname($k);
|
|
$this->varvals[$k] = $v;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* public: subst(string $handle)
|
|
* handle: handle of template where variables are to be substituted.
|
|
*/
|
|
function subst($handle)
|
|
{
|
|
if (!$this->loadfile($handle))
|
|
{
|
|
$this->halt("subst: unable to load $handle.");
|
|
return false;
|
|
}
|
|
|
|
$str = $this->get_var($handle);
|
|
reset($this->varkeys);
|
|
while (list($k, $v) = each($this->varkeys))
|
|
{
|
|
$str = str_replace($v, $this->varvals[$k], $str);
|
|
}
|
|
return $str;
|
|
}
|
|
|
|
/* public: psubst(string $handle)
|
|
* handle: handle of template where variables are to be substituted.
|
|
*/
|
|
function psubst($handle)
|
|
{
|
|
print $this->subst($handle);
|
|
return false;
|
|
}
|
|
|
|
/* public: parse(string $target, string $handle, boolean append)
|
|
* public: parse(string $target, array $handle, boolean append)
|
|
* target: handle of variable to generate
|
|
* handle: handle of template to substitute
|
|
* append: append to target handle
|
|
*/
|
|
function parse($target, $handle, $append = false)
|
|
{
|
|
if (!is_array($handle))
|
|
{
|
|
$str = $this->subst($handle);
|
|
if ($append)
|
|
{
|
|
$this->set_var($target, $this->get_var($target) . $str);
|
|
}
|
|
else
|
|
{
|
|
$this->set_var($target, $str);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
reset($handle);
|
|
while(list($i, $h) = each($handle))
|
|
{
|
|
$str = $this->subst($h);
|
|
$this->set_var($target, $str);
|
|
}
|
|
}
|
|
return $str;
|
|
}
|
|
|
|
function pparse($target, $handle, $append = false)
|
|
{
|
|
print $this->parse($target, $handle, $append);
|
|
return false;
|
|
}
|
|
|
|
/* This is short for finish parse */
|
|
function fp($target, $handle, $append = False)
|
|
{
|
|
return $this->finish($this->parse($target, $handle, $append));
|
|
}
|
|
|
|
/* This is a short cut for print finish parse */
|
|
function pfp($target, $handle, $append = False)
|
|
{
|
|
echo $this->finish($this->parse($target, $handle, $append));
|
|
}
|
|
|
|
/* public: get_vars()
|
|
*/
|
|
function get_vars()
|
|
{
|
|
reset($this->varkeys);
|
|
while(list($k, $v) = each($this->varkeys))
|
|
{
|
|
$result[$k] = $this->varvals[$k];
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/* public: get_var(string varname)
|
|
* varname: name of variable.
|
|
*
|
|
* public: get_var(array varname)
|
|
* varname: array of variable names
|
|
*/
|
|
function get_var($varname)
|
|
{
|
|
if (!is_array($varname))
|
|
{
|
|
return $this->varvals[$varname];
|
|
}
|
|
else
|
|
{
|
|
reset($varname);
|
|
while(list($k, $v) = each($varname))
|
|
{
|
|
$result[$k] = $this->varvals[$k];
|
|
}
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
/* public: get_undefined($handle)
|
|
* handle: handle of a template.
|
|
*/
|
|
function get_undefined($handle)
|
|
{
|
|
if (!$this->loadfile($handle))
|
|
{
|
|
$this->halt("get_undefined: unable to load $handle.");
|
|
return false;
|
|
}
|
|
|
|
preg_match_all("/\{([^}]+)\}/", $this->get_var($handle), $m);
|
|
$m = $m[1];
|
|
if (!is_array($m))
|
|
{
|
|
return false;
|
|
}
|
|
reset($m);
|
|
while(list($k, $v) = each($m))
|
|
{
|
|
if (!isset($this->varkeys[$v]))
|
|
{
|
|
$result[$v] = $v;
|
|
}
|
|
}
|
|
|
|
if (count($result))
|
|
{
|
|
return $result;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* public: finish(string $str)
|
|
* str: string to finish.
|
|
*/
|
|
function finish($str)
|
|
{
|
|
switch ($this->unknowns)
|
|
{
|
|
case 'keep':
|
|
break;
|
|
case 'remove':
|
|
$str = preg_replace('/{[^ \t\r\n}]+}/', '', $str);
|
|
break;
|
|
case 'comment':
|
|
$str = preg_replace('/{([^ \t\r\n}]+)}/', "<!-- Template $handle: Variable \\1 undefined -->", $str);
|
|
break;
|
|
}
|
|
|
|
return $str;
|
|
}
|
|
|
|
/* public: p(string $varname)
|
|
* varname: name of variable to print.
|
|
*/
|
|
function p($varname)
|
|
{
|
|
print $this->finish($this->get_var($varname));
|
|
}
|
|
|
|
function get($varname)
|
|
{
|
|
return $this->finish($this->get_var($varname));
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* private: filename($filename)
|
|
* filename: name to be completed.
|
|
*/
|
|
function filename($filename,$root='',$time=1)
|
|
{
|
|
if($root=='')
|
|
{
|
|
$root=$this->root;
|
|
}
|
|
$default_root = str_replace($GLOBALS['phpgw_info']['server']['template_set'],'default',$root);
|
|
|
|
if (substr($filename, 0, 1) != '/')
|
|
{
|
|
$new_filename = $root.'/'.$filename;
|
|
}
|
|
else
|
|
{
|
|
$new_filename = $filename;
|
|
}
|
|
$default_filename = str_replace($root,$default_root,$new_filename);
|
|
|
|
$app = str_replace('/templates/'.$GLOBALS['phpgw_info']['server']['template_set'],'',$root);
|
|
$app = str_replace('/templates/default','',$app);
|
|
$app = str_replace(PHPGW_SERVER_ROOT.'/','',$app);
|
|
|
|
if (!is_array($this->found_files[$app]))
|
|
{
|
|
if (@is_dir($default_root))
|
|
{
|
|
$d = dir($default_root);
|
|
while (false !== ($entry = $d->read()))
|
|
{
|
|
if ($entry != '.' && $entry != '..')
|
|
{
|
|
$this->found_files[$app][$entry] = $default_filename;
|
|
}
|
|
}
|
|
$d->close();
|
|
}
|
|
|
|
if (@is_dir($root))
|
|
{
|
|
$d = dir($root);
|
|
while (false !== ($entry = $d->read()))
|
|
{
|
|
if ($entry != '.' && $entry != '..')
|
|
{
|
|
$this->found_files[$app][$entry] = $new_filename;
|
|
}
|
|
}
|
|
$d->close();
|
|
}
|
|
}
|
|
|
|
//echo '<pre>';
|
|
//print_r($this->found_files);
|
|
//echo '</pre>';
|
|
|
|
if(isset($this->found_files[$app][$filename]))
|
|
{
|
|
return $this->found_files[$app][$filename];
|
|
}
|
|
else
|
|
{
|
|
$this->halt("filename: file $new_filename does not exist.");
|
|
}
|
|
}
|
|
|
|
/* private: varname($varname)
|
|
* varname: name of a replacement variable to be protected.
|
|
*/
|
|
function varname($varname)
|
|
{
|
|
return '{'.$varname.'}';
|
|
}
|
|
|
|
/* private: loadfile(string $handle)
|
|
* handle: load file defined by handle, if it is not loaded yet.
|
|
*/
|
|
function loadfile($handle)
|
|
{
|
|
if (isset($this->varkeys[$handle]) and !empty($this->varvals[$handle]))
|
|
{
|
|
return true;
|
|
}
|
|
if (!isset($this->file[$handle]))
|
|
{
|
|
$this->halt("loadfile: $handle is not a valid handle.");
|
|
return false;
|
|
}
|
|
$filename = $this->file[$handle];
|
|
|
|
$str = implode('', @file($filename));
|
|
if (empty($str))
|
|
{
|
|
$this->halt("loadfile: While loading $handle, $filename does not exist or is empty.");
|
|
return false;
|
|
}
|
|
|
|
$this->set_var($handle, $str);
|
|
return true;
|
|
}
|
|
|
|
/***************************************************************************/
|
|
/* public: halt(string $msg)
|
|
* msg: error message to show.
|
|
*/
|
|
function halt($msg)
|
|
{
|
|
$this->last_error = $msg;
|
|
|
|
if ($this->halt_on_error != 'no')
|
|
{
|
|
$this->haltmsg($msg);
|
|
}
|
|
|
|
if ($this->halt_on_error == 'yes')
|
|
{
|
|
echo('<b>Halted.</b>');
|
|
}
|
|
|
|
$GLOBALS['phpgw']->common->phpgw_exit(True);
|
|
}
|
|
|
|
/* public, override: haltmsg($msg)
|
|
* msg: error message to show.
|
|
*/
|
|
function haltmsg($msg)
|
|
{
|
|
printf("<b>Template Error:</b> %s<br>\n", $msg);
|
|
}
|
|
}
|