forked from extern/egroupware
377 lines
9.2 KiB
PHP
377 lines
9.2 KiB
PHP
<?php
|
|
/**
|
|
* EGroupware: Class which manages including js files and modules
|
|
* (lateron this might be extended to css)
|
|
*
|
|
* @link http://www.egroupware.org
|
|
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
|
|
* @package api
|
|
* @subpackage groupdav
|
|
* @author Andreas Stöckel
|
|
* @copyright (c) 2011 Stylite
|
|
* @version $Id$
|
|
*/
|
|
|
|
/**
|
|
* Syntax for including JS files form others
|
|
* -----------------------------------------
|
|
*
|
|
* Write a comment starting with "/*egw:uses". A linebreak has to follow.
|
|
* Then write all files which have to be included seperated by ";". A JS file
|
|
* include may have the following syntax:
|
|
*
|
|
* 1) File in the same directory as the current file. Simply write the filename
|
|
* without ".js". Example:
|
|
* egw_action;
|
|
* 2) Files in a certain application and package. The syntax is
|
|
* [$app.]$package.$file
|
|
* The first "$app" part is optional. It defaults to phpgwapi. Examples:
|
|
* jquery.jquery-ui; // Loads /phpgwapi/js/jquery/jquery-ui.js
|
|
* stylite.filemanager.filemanager; // Loads /stylite/filemanager/filemanager.js
|
|
* 3) Absolute file paths starting with "/". Example:
|
|
* /phpgwapi/js/jquery/jquery-ui.js;
|
|
*
|
|
* Comments can be started with "//".
|
|
*
|
|
* Complete example of such an uses-clause:
|
|
* /*egw:uses
|
|
* egw_action_common;
|
|
* egw_action;
|
|
* jquery.jquery; // Includes jquery.js from package jquery in phpgwapi
|
|
* /phpgwapi/js/jquery/jquery-ui.js; // Includes jquery-ui.js
|
|
*/
|
|
|
|
class egw_include_mgr
|
|
{
|
|
|
|
static private $DEBUG_MODE = true;
|
|
|
|
/**
|
|
* The parsed_files array holds all files which have already been processed
|
|
* by this class.
|
|
*/
|
|
private $parsed_files = array();
|
|
|
|
/**
|
|
* The included files array holds all files which will really be included
|
|
* as a result of the current request.
|
|
*/
|
|
private $included_files = array();
|
|
|
|
/**
|
|
* Set to the file which is currently processed, in order to get usable
|
|
* debug messages.
|
|
*/
|
|
private $debug_processing_file = false;
|
|
|
|
/**
|
|
* Parses the js file for includes and returns all required files
|
|
*/
|
|
private function parse_file($file)
|
|
{
|
|
// Mark the file as parsed
|
|
$this->parsed_files[$file] = true;
|
|
|
|
// Try to open the given file
|
|
$f = fopen(EGW_SERVER_ROOT.$file, "r");
|
|
if ($f !== false)
|
|
{
|
|
|
|
// Only read a maximum of 32 lines until the comment occurs.
|
|
$cnt = 0;
|
|
$in_uses = false;
|
|
$uses = "";
|
|
|
|
// Read a line
|
|
$line = fgets($f);
|
|
while ($cnt < 32 && $line !== false)
|
|
{
|
|
// Remove everything behind "//"
|
|
$pos = strpos($line, "//");
|
|
if ($pos !== false)
|
|
{
|
|
$line = substr($line, 0, $pos);
|
|
}
|
|
|
|
if (!$in_uses)
|
|
{
|
|
$cnt++;
|
|
$in_uses = strpos($line, "/*egw:uses") !== false;
|
|
}
|
|
else
|
|
{
|
|
// Check whether we are at the end of the comment
|
|
$pos = strpos($line, "*/");
|
|
|
|
if ($pos === false)
|
|
{
|
|
$uses .= $line;
|
|
}
|
|
else
|
|
{
|
|
$uses .= substr($line, 0, $pos);
|
|
break;
|
|
}
|
|
}
|
|
|
|
$line = fgets($f);
|
|
}
|
|
|
|
// Close the file again
|
|
fclose($f);
|
|
|
|
// Split the "require" string at ";"
|
|
$modules = explode(";", $uses);
|
|
$modules2 = array();
|
|
|
|
// Split all modules at "." and remove entries with empty parts
|
|
foreach ($modules as $mod)
|
|
{
|
|
// Remove trailing space characters
|
|
$mod = trim($mod);
|
|
|
|
if ($mod)
|
|
{
|
|
// Split the given module string at the dot, if this isn't
|
|
// an absolute path (initialized by "/").
|
|
if ($mod[0] != '/')
|
|
{
|
|
$mod = explode(".", $mod, 3);
|
|
}
|
|
else
|
|
{
|
|
$mod = array($mod);
|
|
}
|
|
$empty = false;
|
|
|
|
// Remove all space characters
|
|
foreach ($mod as &$entry)
|
|
{
|
|
$entry = trim($entry);
|
|
$empty = $empty || !$entry;
|
|
}
|
|
|
|
if (!$empty)
|
|
{
|
|
$modules2[] = $mod;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $modules2;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private function file_processed($file)
|
|
{
|
|
return (array_key_exists($file, $this->included_files) ||
|
|
array_key_exists($file, $this->parsed_files));
|
|
}
|
|
|
|
/**
|
|
* Parses the given files and adds all dependencies to the passed modules array
|
|
*/
|
|
private function parse_deps($path, array &$module)
|
|
{
|
|
$this->debug_processing_file = $path;
|
|
|
|
// Parse the given file for dependencies
|
|
$uses = $this->parse_file($path);
|
|
|
|
foreach ($uses as $entry)
|
|
{
|
|
$uses_path = false;
|
|
|
|
// Check whether just a filename was given - if yes, check whether
|
|
// a file with the given name exists inside the directory of the
|
|
// base file
|
|
if (count($entry) == 1)
|
|
{
|
|
if ($entry[0][0] == "/")
|
|
{
|
|
$uses_path = $this->translate_params($entry[0], null, '');
|
|
}
|
|
else
|
|
{
|
|
// Assemble a filename
|
|
$filename = dirname($path).'/'.$entry[0].'.js';
|
|
|
|
if (is_readable(EGW_SERVER_ROOT.($filename)))
|
|
{
|
|
if (!$this->file_processed($filename))
|
|
{
|
|
$uses_path = $filename;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$uses_path = $this->translate_params($entry[0], null, 'phpgwapi');
|
|
}
|
|
}
|
|
}
|
|
else if (count($entry) == 2)
|
|
{
|
|
$uses_path = $this->translate_params($entry[0], $entry[1], 'phpgwapi');
|
|
}
|
|
else if (count($entry) == 3)
|
|
{
|
|
$uses_path = $this->translate_params($entry[1], $entry[2], $entry[0]);
|
|
}
|
|
else
|
|
{
|
|
error_log(__METHOD__." invalid egw:require in js_file -> ".print_r($entry, true));
|
|
}
|
|
|
|
if ($uses_path)
|
|
{
|
|
$this->parse_deps($uses_path, $module);
|
|
}
|
|
}
|
|
|
|
// Add the file to the top of the list
|
|
array_push($module, $path);
|
|
|
|
$this->debug_processing_file = false;
|
|
}
|
|
|
|
/**
|
|
* Includes the given module files - this function will have the task to
|
|
* cache/shrink/concatenate the files in the future.
|
|
*/
|
|
private function include_module(array $module)
|
|
{
|
|
if (self::$DEBUG_MODE)
|
|
{
|
|
foreach ($module as $path)
|
|
{
|
|
$this->included_files[$path] = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// TODO
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Translates the given parameters into a path and checks it for validity.
|
|
*
|
|
* Example call syntax:
|
|
* a) egw_framework::validate_file('jscalendar','calendar')
|
|
* --> /phpgwapi/js/jscalendar/calendar.js
|
|
* b) egw_framework::validate_file('/phpgwapi/inc/calendar-setup.js',array('lang'=>'de'))
|
|
* --> /phpgwapi/inc/calendar-setup.js?lang=de
|
|
*
|
|
* @param string $package package or complete path (relative to EGW_SERVER_ROOT) to be included
|
|
* @param string|array $file=null file to be included - no ".js" on the end or array with get params
|
|
* @param string $app='phpgwapi' application directory to search - default = phpgwapi
|
|
* @param boolean $append=true should the file be added
|
|
*
|
|
* @returns the correct path on the server if the file is found or false, if the
|
|
* file is not found or no further processing is needed.
|
|
*/
|
|
private function translate_params($package, $file, $app)
|
|
{
|
|
if ($package[0] == '/' && (is_readable(EGW_SERVER_ROOT.(parse_url($path = $package, PHP_URL_PATH))) ||
|
|
is_readable(EGW_SERVER_ROOT.($path = $package))) ||
|
|
is_readable(EGW_SERVER_ROOT.($path="/$app/js/$package/$file.js")) ||
|
|
$app != 'phpgwapi' && is_readable(EGW_SERVER_ROOT.($path="/phpgwapi/js/$package/$file.js")))
|
|
{
|
|
|
|
// Handle the special case, that the file is an url - in this case
|
|
// we will do no further processing but just include the file
|
|
// XXX: Is this case still used? If yes, it will not work with
|
|
// adding the ctime to all js files...
|
|
if (is_array($file))
|
|
{
|
|
foreach($file as $name => $val)
|
|
{
|
|
$args .= (empty($args) ? '?' : '&').$name.'='.urlencode($val);
|
|
}
|
|
$path .= $args;
|
|
|
|
$this->included_files[$path] = true;
|
|
return false;
|
|
}
|
|
|
|
// Return false if the file is already included or parsed
|
|
if ($this->file_processed($path))
|
|
{
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
return $path;
|
|
}
|
|
}
|
|
|
|
if (self::$DEBUG_MODE) // DEBUG_MODE is currently ALWAYS true. Comment this code out if you don't want error messages.
|
|
{
|
|
error_log(__METHOD__."($package,$file,$app) $path NOT found".($this->debug_processing_file ? " while processing file '{$this->debug_processing_file}'." : "!").' '.function_backtrace());
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function include_js_file($package, $file = null, $app = 'phpgwapi')
|
|
{
|
|
// Translate the given parameters into a valid path - false is returned
|
|
// if the file is not found or the file is already included/has already
|
|
// been parsed by this class.
|
|
$path = $this->translate_params($package, $file, $app);
|
|
|
|
if ($path !== false)
|
|
{
|
|
// TODO: Check whether the given path is cached, if yes, include the
|
|
// cached module file and add all files this module contains
|
|
// to the "parsed_files" array
|
|
|
|
// Collect the possible list of dependant modules of this file in
|
|
// the "module" array.
|
|
$module = array();
|
|
$this->parse_deps($path, $module);
|
|
|
|
$this->include_module($module);
|
|
}
|
|
}
|
|
|
|
public function include_files(array $files)
|
|
{
|
|
foreach ($files as $file)
|
|
{
|
|
$this->include_js_file($file);
|
|
}
|
|
}
|
|
|
|
public function get_included_files()
|
|
{
|
|
return array_keys($this->included_files);
|
|
}
|
|
|
|
public function __construct($files = null)
|
|
{
|
|
if (isset($files) && is_array($files))
|
|
{
|
|
$this->include_files($files);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
// Small test for this class
|
|
|
|
define("EGW_SERVER_ROOT", "/home/andreas/www/egroupware/trunk/egroupware");
|
|
|
|
$mgr = new egw_include_mgr();
|
|
$mgr->include_js_file('filemanager', 'filemanager', 'stylite');
|
|
$files = $mgr->get_included_files();
|
|
|
|
foreach ($files as $file)
|
|
{
|
|
echo($file."<br>\n");
|
|
}
|
|
*/
|