2 /*=====================================================================*\
3 || ###################################################################
4 || # Iris Studios Shared Object Framework [#]version[#]
5 || # Copyright ©2002-[#]year[#] Iris Studios, Inc.
7 || # This program is free software; you can redistribute it and/or modify
8 || # it under the terms of the GNU General Public License as published by
9 || # the Free Software Foundation; version [#]gpl[#] of the License.
11 || # This program is distributed in the hope that it will be useful, but
12 || # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 || # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 || # You should have received a copy of the GNU General Public License along
17 || # with this program; if not, write to the Free Software Foundation, Inc.,
18 || # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
19 || ###################################################################
20 \*=====================================================================*/
23 * Iris Studios Shared Object Framework Kernel
29 if (!function_exists('version_compare'))
31 trigger_error('You need PHP version 4.1.0 or newer to run ISSO', E_USER_ERROR
);
35 if (version_compare(PHP_VERSION
, '5.0.0', '>='))
37 if (ini_get('error_reporting') & E_NOTICE
)
39 error_reporting(ini_get('error_reporting') - E_NOTICE
);
41 if (ini_get('error_reporting') & E_USER_NOTICE
)
43 error_reporting(ini_get('error_reporting') - E_USER_NOTICE
);
47 $oldlevel = ini_get('error_reporting');
48 $newlevel = $oldlevel;
49 $levels = array(E_ERROR
=> E_USER_ERROR
, E_WARNING
=> E_USER_WARNING
, E_NOTICE
=> E_USER_NOTICE
);
50 foreach ($levels AS $php => $isso)
54 if (!($oldlevel & $isso))
56 //echo "increasing newlevel by $isso; ";
62 if ($oldlevel & $isso)
64 //echo "decreasing newlevel by $isso; ";
69 error_reporting($newlevel);
71 if ((bool
)ini_get('register_globals') === true
)
73 $superglobals = array('_GET', '_COOKIE', '_FILES', '_POST', '_SERVER', '_ENV');
74 foreach ($superglobals AS $global)
76 if (is_array($
{$global}))
78 foreach ($
{$global} AS $_key => $_val)
90 * Iris Studios Shared Object Framework (ISSO)
92 * This framework allows a common backend to be used amongst all Iris
93 * Studios applications and is built to be abstract and flexible.
94 * The base framework handles all loading and module management.
96 * @author Iris Studios, Inc.
97 * @copyright Copyright ©2002 - [#]year[#], Iris Studios, Inc.
102 class Shared_Object_Framework
108 var $version = '[#]version[#]';
111 * Location of ISSO, used for internal linking
114 var $sourcepath = '';
117 * Path of the current application
123 * Name of the current application
126 var $application = '';
129 * Version of the current application
132 var $appversion = '';
135 * Whether debug mode is on or off
141 * List of all active debug messages
144 var $debuginfo = array();
147 * List of loaded modules
150 var $modules = array();
153 * An array of sanitized variables that have been cleaned for HTML tag openers and double quotes
159 * If we are running with magic_quotes_gpc on or off
162 var $magicquotes = 0;
165 * If we should automagically escape strings, mimicking magic_quotes_gpc
168 var $escapestrings = false
;
173 function Shared_Object_Framework()
176 set_error_handler(array(&$this, '_error_handler'));
179 $this->magicquotes
= get_magic_quotes_gpc();
180 set_magic_quotes_runtime(0);
182 if (defined('ISSO_ESCAPE_STRINGS'))
184 $this->escapestrings
= (bool
)constant('ISSO_ESCAPE_STRINGS');
187 // start input sanitize using variable_order GPC
188 if (!$this->escapestrings
)
190 $this->exec_sanitize_data();
193 if (defined('ISSO_CHECK_POST_REFERER'))
195 $this->exec_referer_check();
198 $this->modules
['kernel'] = 'Shared Object Framework Core';
202 * Prepares a path for being set as the sourcepath
204 * @param string Source path or URL
206 * @return string Prepared source path
208 function fetch_sourcepath($source)
210 if (substr($source, strlen($source) - 1) != DIRECTORY_SEPARATOR
)
212 $source .= DIRECTORY_SEPARATOR
;
218 * Loads a framework extension
220 * @param string Name of the framework
222 function load($framework)
224 if (!$this->is_loaded($framework))
226 $newobj = $this->locate($framework);
227 $this->$newobj['OBJ'] = new $newobj['CLASS']($this);
228 $GLOBALS["$newobj[OBJ]"] =& $this->$newobj['OBJ'];
229 $this->modules
["$framework"] = $newobj['OBJECT'];
234 * Includes a framework module. Module definitions need three variables:
235 * class, object, and obj. Class is the name of the class, object is
236 * the name human-readable name, and obj is the name that the module
237 * should be initialized as; this is used in class extensions.
239 * @param string Name of the framework
241 * @return array List of initialization variables
243 function locate($framework)
245 if ($this->sourcepath
== '')
247 trigger_error('Invalid sourcepath specified', E_USER_ERROR
);
250 if (file_exists($this->sourcepath
. $framework . '.php'))
252 require_once($this->sourcepath
. $framework . '.php');
253 return array('CLASS' => $CLASS, 'OBJECT' => $OBJECT, 'OBJ' => $OBJ);
257 trigger_error('Could not find the framework ' . $this->sourcepath
. $framework . '.php', E_USER_ERROR
);
263 * Prints a list of all currently loaded framework modules
265 * @param bool Return the data as an array?
267 * @return mixed HTML output or an array of loaded modules
269 function show_modules($return = false
)
273 return $this->modules
;
277 $output = "\n\n<ul>\n\t<li>";
278 $output .= implode("</li>\n\t<li>", $this->modules
);
279 $output .= "</li>\n</ul>\n\n";
280 $this->_message('Loaded Modules', $output, 1);
285 * Verifies to see if a framework has been loaded
287 * @param string Framework name
289 * @return bool Whether or not the framework has been loaded
291 function is_loaded($framework)
293 if (isset($this->modules
["$framework"]))
304 * Prints an ISSO message
306 * @param string The title of the message
307 * @param string The content of the message
308 * @param integer Type of message to be printed
309 * @param bool Return the output?
311 * @return mixed Output or null
313 function _message($title, $message, $type, $return = false
)
338 $output = "\n<br />\n<table cellpadding=\"4\" cellspacing=\"1\" border=\"0\" width=\"500\" style=\"background-color: $color; color: black; font-family: Verdana, sans-serif; font-size: 12px;\">";
339 $output .= "\n<tr style=\"color: $font; text-align: left\">\n\t<td><strong>$prefix: $title</strong></td>\n</tr>";
340 $output .= "\n<tr style=\"background-color: #FFFFFF; text-align: left\">\n\t<td>$message</td>\n</tr>\n</table>\n<br />\n";
353 * Custom error handler for ISSO
354 * We only handle E_WARNING, E_NOTICE, E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE
356 * @param integer Error number
357 * @param string Error message string
358 * @param string File that contains the error
359 * @param string The line number of the error
360 * @param string The active symbol table at which point the error occurred
362 function _error_handler($errno, $errstr, $errfile, $errline)
369 if (!(ini_get('error_reporting') & E_USER_ERROR
))
378 if (!(ini_get('error_reporting') & E_USER_WARNING
) AND !(ini_get('error_reporting') & E_WARNING
))
388 if (!(ini_get('error_reporting') & E_USER_NOTICE
) AND !(ini_get('error_reporting') & E_NOTICE
))
395 $errfile = str_replace(array(getcwd(), dirname(getcwd())), '', $errfile);
397 $errstr .= " in <strong>$errfile</strong> on line <strong>$errline</strong>";
399 $this->_message($title, $errstr, 3);
401 if ($errno == E_USER_ERROR
)
408 * Logs a debug message for verbose output
410 * @param string Message
412 function debug($message)
414 $this->debuginfo
[] = $message;
418 * Recursive XSS cleaner
420 * @param mixed Unsanitized REQUEST data
422 * @return mixed Sanitized data
424 function _sanitize_input_recursive($data)
426 foreach ($data AS $key => $value)
428 if (is_array($value))
430 $data["$key"] = $this->_sanitize_input_recursive($value);
434 if ($this->escapestrings
)
436 $data["$key"] = $this->escape($this->sanitize($value), false
, false
);
440 $data["$key"] = $this->sanitize($value);
448 * Simple way to protect against HTML attacks with Unicode support
450 * @param string Unsanitzed text
452 * @return string Properly protected text that only encodes potential threats
454 function sanitize($text)
456 if ($this->magicquotes
)
458 return str_replace(array('<', '>', '\"', '"'), array('<', '>', '"', '"'), $text);
462 return str_replace(array('<', '>', '"'), array('<', '>', '"'), $text);
467 * Takes text that has been processed for HTML and unsanitizes it
469 * @param string Text that needs to be turned back into HTML
470 * @param bool Force magicquotes off
472 * @return string Unsanitized text
474 function unsanitize($text, $force = false
)
476 if ($this->magicquotes
AND !$force)
478 return str_replace(array('<', '>', '"'), array('<', '>', '\"'), $text);
482 return str_replace(array('<', '>', '"'), array('<', '>', '"'), $text);
487 * Smart addslashes() that only applies itself it the Magic Quotes GPC is off
489 * @param string Some string
490 * @param bool If the data is binary; if so it'll be run through DB::escape_stringing()
491 * @param bool Force magic quotes to be off
493 * @return string String that has slashes added
495 function escape($str, $binary = false
, $force = true
)
497 if ($this->magicquotes
AND !$force)
499 if (isset($this->db
) AND $binary)
501 if (is_resource($this->db
->link_id
))
503 return $this->db
->escape_string(stripslashes($str));
510 if (isset($this->db
) AND $binary)
512 if (is_resource($this->db
->link_id
))
514 return $this->db
->escape_string($str);
517 return addslashes($str);
522 * Runs through all of the input data and sanitizes it.
524 function exec_sanitize_data()
526 $this->in
= $this->_sanitize_input_recursive(array_merge($_GET, $_POST, $_COOKIE));
527 // we're now using magic quotes
528 if ($this->escapestrings
)
530 $this->magicquotes
= 1;
535 * Checks to see if a POST refer is actually from us
537 function exec_referer_check()
539 if ($_SERVER['REQUEST_METHOD'] == 'POST')
541 $host = ($_SERVER['HTTP_HOST']) ?
$_SERVER['HTTP_HOST'] : $_ENV['HTTP_HOST'];
543 if ($host AND $_SERVER['HTTP_REFERER'])
545 $parts = parse_url($_SERVER['HTTP_REFERER']);
546 $ourhost = $parts['host'] . (($parts['port']) ?
":$parts[port]" : '');
548 if ($ourhost != $host)
550 trigger_error('No external hosts are allowed to POST to this application', E_USER_ERROR
);
552 $this->debug('remote post check = ok');
556 $this->debug('remote post check = FAILED');
562 /*=====================================================================*\
563 || ###################################################################
566 || ###################################################################
567 \*=====================================================================*/