<?php
/**
* example2.php
* formerly parse_gen.php
*
* code to create a node graph of a PHP source file
* C. McKinnon 4 feb 2011
*
* this script shows how to set the options on the generated graph
*/
/**
* init
*/
require_once('dotwriter.inc.php');
set_time_limit(600);
$process_errors=array(); // error handler writes errors here for display later
$controller=new dotrunner();
/**
* main
*/
if (check_params($controller)) {
if (not_cached($_REQUEST['src_file'])) {
set_error_handler('error_logging');
$source_code=file_get_contents($_REQUEST['src_file']);
$outputFileName=$controller->genGraph(
$source_code,basename($_REQUEST['src_file']));
restore_error_handler();
}
}
do_page($controller);
$controller->cleanUp();
// --------------------------- end ---------------------------
exit;
/**
* initialize the dotrunner obj with paramters from $_REQUEST
*/
function check_params($dstObj)
{
if ($_REQUEST['src_file'] && $_REQUEST['opt_output']
&& $_REQUEST['opt_undef'] && $_REQUEST['opt_builtin']) {
if (file_exists($_REQUEST['src_file'])) {
if (strtoupper(substr($_REQUEST['opt_output'],0,1))=='V') {
$dstObj->options['output']='Vertical';
} else {
$dstObj->options['output']='Horizontal';
}
if ($_REQUEST['opt_undef']=='YES') {
$dstObj->options['exclude_undefined']=true;
} else {
$dstObj->options['exclude_undefined']=false;
}
if ($_REQUEST['opt_builtin']=='YES') {
$dstObj->options['exclude_builtins']=true;
} else {
$dstObj->options['exclude_builtins']=false;
}
$dstObj->outputFileName=get_dest_file($_REQUEST['src_file']) . '.jpg';
return(true);
} else {
trigger_error("File not found");
}
}
return(false);
}
function do_page($controller)
{
print "<body>\n";
do_form();
do_result($controller->tmpfile,$controller->cmd, $controller->dotCmdOutput,
$_REQUEST['src_file'], $controller->options,
$controller->exclude_fns, $controller->builtins,
$controller);
print "</body>";
}
function do_form()
{
print "<form method='GET'>\n";
print "file to parse: <input type='text' name='src_file' value='" . $_REQUEST['src_file'] . "' size='80'><br />\n";
print "output vertical or horizontal? <select name='opt_output'>
<option selected>Vertical</option>
<option>Horizontal</option>
</select><br />\n";
print "exclude undefined functions? <select name='opt_undef'>
<option selected>YES</option>
<option>NO</option></select><br />\n";
print "exclude builtin functions? <select name='opt_builtin'>
<option selected>YES</option>
<option>NO</option></select><br />\n";
print "<input type='submit' name='submit' value='submit'></form>\n";
}
function do_result($tmpfile,$cmd,$output,$src_file,$options,$exclude_fns, $builtins, $ctrl)
{
if ($_REQUEST['src_file']) {
show_errors();
$destfile=get_dest_file($_REQUEST['src_file']) . '.jpg';
if (file_exists($destfile)) {
print "<h3>$src_file</h3>\n";
list($lines_processed)=get_lines(false,false,$lines_processed);
if ($lines_processed) {
print "parsed $lines_processed lines from input file<br />\n";
}
print "<br /><img src='$destfile' alt='callgraph'>\n";
print "<br />This graph was created from the following .dot file:\n";
} else {
print "expected output $destfile not created<br />\n";
print "failed to generate for some reason";
print "<br />dot file shown below:\n";
}
print "<code><pre>" . @file_get_contents($tmpfile) . "</pre></code>\n";
} else {
print "<h3>Key</h3><br /><img src='key.jpg' alt='key'>\n";
}
}
function show_errors()
{
global $process_errors;
$colors=array(
E_ERROR => "FF1010", // red
E_WARNING => "FF3333", // yellow
E_PARSE => "CC00FF", // unlikely
E_NOTICE => "00FFFF",
E_CORE_ERROR => "CC00FF",
E_CORE_WARNING => "FF0000",
E_COMPILE_ERROR => "FF0000",
E_COMPILE_WARNING => "FF9933",
E_USER_ERROR => "FF6666",
E_USER_WARNING => "FFFF33",
E_USER_NOTICE => "CCCCFF",
E_STRICT => "FF99FF"
);
if (count($process_errors)) {
print "<h3>Errors occurred during processing</h3>\n";
print "<table bgcolor='#000000'>";
foreach($process_errors as $item) {
list($errno, $msg)=$item;
$bg=$colors[$errno];
if (!$bg) $bg='FFFFFF';
print "<tr><td bgcolor='#$bg'>$errno</td><td bgcolor='#$bg'>$msg</td></tr>\n";
}
print "</table>\n";
}
}
function error_logging($errno, $errmsg, $filename, $line, $vars)
{
global $process_errors;
$errortype = array (
E_ERROR => "Error",
E_WARNING => "Warning",
E_PARSE => "Parsing Error",
E_NOTICE => "Notice",
E_CORE_ERROR => "Core Error",
E_CORE_WARNING => "Core Warning",
E_COMPILE_ERROR => "Compile Error",
E_COMPILE_WARNING => "Compile Warning",
E_USER_ERROR => "User Error",
E_USER_WARNING => "User Warning",
E_USER_NOTICE => "User Notice",
E_STRICT => "Runtime Notice"
);
$process_errors[]=array($errno, $errortype[$errno] . " $errmsg at $line in $filename");
}
function get_dest_file($src_file)
{
$src_file=serialize($_GET); // different graphs for difft params
$dest="graphs/" . md5($src_file);
return($dest);
}
function clean_cache()
{
// garbage collectio %%% needs to be safer
$base=dirname(__FILE__);
if (is_dir($base . '/graphs')) {
$cmd="find " . $base . '/graphs/' . " -name \*.jpg -mtime +30 -exec rm -f {} \;";
$chk=`echo "$cmd" | at now`;
}
}
function not_cached($src_file)
{
clean_cache();
$destfile=get_dest_file($src_file) . '.jpg';
$cachetime=(integer)@filemtime($destfile);
$codetime=(integer)@filemtime($src_file);
return($cachetime<$codetime);
}
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