weathermap

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<?php

/** editor.inc.php
  *
  * All the functions used by the editor.
  */

/** @function fix_gpc_string 
  *
  * Take a string (that we got from $_REQUEST) and make it back to how the
  * user TYPED it, regardless of whether magic_quotes_gpc is turned on or off.
  *
  * @param string $input String to fix
  *
  * @returns string Fixed string
  *
  */
function fix_gpc_string($input) 
{
    if (true == function_exists('get_magic_quotes_gpc') && 1 == get_magic_quotes_gpc()) {
        $input = stripslashes($input);
    }
    return ($input);
}

function show_editor_startpage()
{
        global $mapdir, $WEATHERMAP_VERSION, $config_loaded, $cacti_found, $ignore_cacti,$configerror;

        $fromplug = false;
    if (isset($_REQUEST['plug']) && (intval($_REQUEST['plug'])==1) ) { 
        $fromplug = true; 
    }

        $matches=0;

        print '<html xmlns="http://www.w3.org/1999/xhtml"><head><link rel="stylesheet" type="text/css" media="screen" href="editor.css" /><script type="text/javascript" src="editor-resources/jquery-latest.min.js"></script><script src="editor.js" type="text/javascript"></script><title>PHP Weathermap Editor ' . $WEATHERMAP_VERSION
                . '</title></head><body>';

        print '<div id="nojs" class="alert"><b>WARNING</b> - ';
        print 'Sorry, it\'s partly laziness on my part, but you really need JavaScript enabled and DOM support in your browser to use this editor. It\'s a visual tool, so accessibility is already an issue, if it is, and from a security viewpoint, you\'re already running my ';
        print 'code on your <i>server</i> so either you trust it all having read it, or you\'re already screwed.<P>';
        print 'If it\'s a major issue for you, please feel free to complain. It\'s mainly laziness as I said, and there could be a fallback (not so smooth) mode for non-javascript browsers if it was seen to be worthwhile (I would take a bit of convincing, because I don\'t see a benefit, personally).</div>';
        
        $errormessage = "";

    if ($configerror!='') {
        $errormessage .= $configerror.'<p>';
    }
                
        if (! $cacti_found && !$ignore_cacti) {
                $errormessage .= '$cacti_base is not set correctly. Cacti integration will be disabled in the editor.';
                if ($config_loaded != 1) { 
            $errormessage .= " You might need to copy editor-config.php-dist to editor-config.php and edit it."; 
        }
        }
        
        if ($errormessage != '') {
                print '<div class="alert" id="nocacti">'.$errormessage.'</div>';
        }

        print '<div id="withjs">';
        print '<div id="dlgStart" class="dlgProperties" ><div class="dlgTitlebar">Welcome</div><div class="dlgBody">';
        print 'Welcome to the PHP Weathermap '.$WEATHERMAP_VERSION.' editor.<p>';
        print '<div style="border: 3px dashed red; background: #055; padding: 5px; font-size: 90%;"><b>NOTE:</b> This editor is not finished! There are many features of ';
        print 'Weathermap that you will be missing out on if you choose to use the editor only.';
        print 'These include: curves, node offsets, font definitions, colour changing, per-node/per-link settings and image uploading. You CAN use the editor without damaging these features if you added them by hand, however.</div><p>';
        
        print 'Do you want to:<p>';
        print 'Create A New Map:<br>';
        print '<form method="GET">';
        print 'Named: <input type="text" name="mapname" size="20">';

        print '<input name="action" type="hidden" value="newmap">';
        print '<input name="plug" type="hidden" value="'.$fromplug.'">';

        print '<input type="submit" value="Create">';
        print '</form>';

        $titles = array();

        $errorstring="";

        if (is_dir($mapdir)) {
                $n=0;
                $dh=opendir($mapdir);

                if ($dh) {
            while (false !== ($file = readdir($dh))) {
                                $realfile=$mapdir . DIRECTORY_SEPARATOR . $file;
                                $note = "";

                                if ( (is_file($realfile)) && (is_readable($realfile)) && (!preg_match("/^\./",$file) ) ) {
                                        if (!is_writable($realfile)) {
                                                $note .= "(read-only)";
                                        }
                                        $title='(no title)';
                                        $fd=fopen($realfile, "r");
                                        if ($fd) {
                                                while (!feof($fd)) {
                                                        $buffer=fgets($fd, 4096);
        
                                                        if (preg_match("/^\s*TITLE\s+(.*)/i", $buffer, $matches)) { 
                                $title=$matches[1]; 
                            }
                                                }
        
                                                fclose ($fd);
                                                $titles[$file] = $title;
                                                $notes[$file] = $note;
                                                $n++;
                                        }
                                }
                        }

                        closedir ($dh);
                } else { 
            $errorstring = "Can't open mapdir to read."; 
        }
                
                ksort($titles);
                
                if ($n == 0) { 
            $errorstring = "No files in mapdir"; 
        }
        } else { 
        $errorstring = "NO DIRECTORY named $mapdir"; 
    }


        print 'OR<br />Create A New Map as a copy of an existing map:<br>';
        print '<form method="GET">';
        print 'Named: <input type="text" name="mapname" size="20"> based on ';

        print '<input name="action" type="hidden" value="newmapcopy">';
        print '<input name="plug" type="hidden" value="'.$fromplug.'">';
        print '<select name="sourcemap">';
        
        if ($errorstring == '') {
                foreach ($titles as $file=>$title) {
                        $nicefile = htmlspecialchars($file);
                        print "<option value=\"$nicefile\">$nicefile</option>\n";
                }
        } else {
                print '<option value="">'.$errorstring.'</option>';
        }
        
        print '</select>';
        print '<input type="submit" value="Create Copy">';
        print '</form>';
        print 'OR<br />';
        print 'Open An Existing Map (looking in ' . $mapdir . '):<ul class="filelist">';

        if ($errorstring == '') {
                foreach ($titles as $file=>$title) {
                        $title = $titles[$file];
                        $note = $notes[$file];
                        $nicefile = htmlspecialchars($file);
                        print "<li>$note<a href=\"?mapname=$nicefile&plug=$fromplug\">$nicefile</a> - <span class=\"comment\">$title</span></li>\n";
                }
        } else {
                print '<li>'.$errorstring.'</li>';
        }

        print "</ul>";

        print "</div>"; // dlgbody
        print '<div class="dlgHelp" id="start_help">PHP Weathermap ' . $WEATHERMAP_VERSION
                . ' Copyright &copy; 2005-2010 Howard Jones - howie@thingy.com<br />The current version should always be <a href="http://www.network-weathermap.com/">available here</a>, along with other related software. PHP Weathermap is licensed under the GNU Public License, version 2. See COPYING for details. This distribution also includes the Overlib library by Erik Bosrup.</div>';

        print "</div>"; // dlgStart
        print "</div>"; // withjs
        print "</body></html>";
}

function snap($coord, $gridsnap = 0)
{
    if ($gridsnap == 0) { 
        return ($coord); 
    } else { 
        return ($coord - ($coord % $gridsnap)); 
    }
}

// Following function is based on code taken from here:
// http://uk2.php.net/manual/en/security.globals.php
//
// It extracts a set of named variables into the global namespace,
// validating them as they go. Returns true or false depending on if
// validation fails. If it does fail, then nothing is added to the
// global namespace.
//
function extract_with_validation($array, $paramarray, $prefix = "", $debug = false)
{
        $all_present=true;
        $candidates=array( );

        if ($debug) {
                print '<pre>';
        print_r ($paramarray);
                print_r ($array);
    }

        foreach ($paramarray as $var) {
                $varname=$var[0];
                $vartype=$var[1];
                $varreqd=$var[2];

                if ($varreqd == 'req' && !array_key_exists($varname, $array)) { 
            $all_present=false; 
        }

                if (array_key_exists($varname, $array)) {
                        $varvalue=$array[$varname];

                        if ($debug) {
                                print "Checking $varname...";
            }

                        $waspresent=$all_present;

                        switch ($vartype)
                        {
                        case 'int':
                                if (!preg_match('/^\-*\d+$/', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'float':
                                if (!preg_match('/^\d+\.\d+$/', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'yesno':
                                if (!preg_match('/^(y|n|yes|no)$/i', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'sqldate':
                                if (!preg_match('/^\d\d\d\d\-\d\d\-\d\d$/i', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'any':
                                // we don't care at all
                                break;

                        case 'ip':
                                if (!preg_match( '/^((\d|[1-9]\d|2[0-4]\d|25[0-5]|1\d\d)(?:\.(\d|[1-9]\d|2[0-4]\d|25[0-5]|1\d\d)){3})$/', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'alpha':
                                if (!preg_match('/^[A-Za-z]+$/', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'alphanum':
                                if (!preg_match('/^[A-Za-z0-9]+$/', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        case 'bandwidth':
                                if (!preg_match('/^\d+\.?\d*[KMGT]*$/i', $varvalue)) { 
                    $all_present=false; 
                }

                                break;

                        default:
                                // an unknown type counts as an error, really
                                $all_present=false;

                                break;
                        }

                        if ($debug && $waspresent != $all_present) { 
                print "Failed on $varname."; 
            }

                        if ($all_present) {
                                $candidates["{$prefix}{$varname}"]=$varvalue;
                                $candidates["{$prefix}{$varname}_slashes"]=addslashes($varvalue);
                                $candidates["{$prefix}{$varname}_url"]=urlencode($varvalue);
                                $candidates["{$prefix}{$varname}_html"]=htmlspecialchars($varvalue);
                                $candidates["{$prefix}{$varname}_url_html"]=htmlspecialchars(urlencode($varvalue));
                        }
                } else {
                        if ($debug) {
                                print "Skipping $varname\n";
            }
                }
        }

        if ($debug) {
                print_r ($candidates);
    }

        if ($all_present) {
                foreach ($candidates as $key => $value) { 
            $GLOBALS[$key]=$value; 
        }
        }

        if ($debug) {
                print '</pre>';
    }

        return ($all_present);
}

function get_imagelist($imagedir)
{
        $imagelist = array();

        if (is_dir($imagedir)) {
                $n=0;
                $dh=opendir($imagedir);

                if ($dh) {
                        while ($file=readdir($dh)) {
                                $realfile=$imagedir . DIRECTORY_SEPARATOR . $file;
                $uri = $imagedir . "/" . $file;

                                if (is_file($realfile) && ( preg_match('/\.(gif|jpg|png)$/i',$file) )) {
                                        $imagelist[] = $uri;
                                        $n++;
                                }
                        }

                        closedir ($dh);
                }
        }
        return ($imagelist);
}

function handle_inheritance(&$map, &$inheritables)
{
        foreach ($inheritables as $inheritable) {               
                $fieldname = $inheritable[1];
                $formname = $inheritable[2];
                
                $new = $_REQUEST[$formname];
                
                $old = ($inheritable[0]=='node' ? $map->nodes['DEFAULT']->$fieldname : $map->links['DEFAULT']->$fieldname);     
                
                if ($old != $new) {
                        if ($inheritable[0]=='node') {
                                $map->nodes['DEFAULT']->$fieldname = $new;
                                foreach ($map->nodes as $node) {
                                        if ($node->name != ":: DEFAULT ::" && $node->$fieldname == $old) {
                                                $map->nodes[$node->name]->$fieldname = $new;
                                        }
                                }
                        }
                        
                        if ($inheritable[0]=='link') {
                                $map->links['DEFAULT']->$fieldname = $new;
                                foreach ($map->links as $link) {
                                        
                                        if ($link->name != ":: DEFAULT ::" && $link->$fieldname == $old) {
                                                $map->links[$link->name]->$fieldname = $new;
                                        }
                                }
                        }
                }
        }
}

function get_fontlist(&$map,$name,$current)
{
    $output = '<select class="fontcombo" name="'.$name.'">';
        
    ksort($map->fonts);

    foreach ($map->fonts as $fontnumber => $font) {             
        $output .= '<option ';
        if ($current == $fontnumber) {
            $output .= 'SELECTED';
        }
        $output .= ' value="'.$fontnumber.'">'.$fontnumber.' ('.$font->type.')</option>';
    }
        
    $output .= "</select>";

    return($output);
}

function editor_log($str)
{
    // $f = fopen("editor.log","a");
    // fputs($f, $str);
    // fclose($f);
}

// vim:ts=4:sw=4:
?>