weathermap

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<?php
function show_editor_startpage()
{
        global $mapdir, $WEATHERMAP_VERSION;

        $matches=0;

        print '<html xmlns="http://www.w3.org/1999/xhtml"><head><link rel="stylesheet" type="text/css" media="screen" href="editor.css" />  <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>';

        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: 97%;"><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 type="submit" value="Create">';
        print '</form>';
        print 'OR<br />';
        print 'Open An Existing Map (looking in ' . $mapdir . '):<ul class="filelist">';

        $titles = array();

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

                if ($dh)
                {
                        while ($file=readdir($dh))
                        {
                                $realfile=$mapdir . DIRECTORY_SEPARATOR . $file;

// if(is_file($realfile) && ( preg_match('/\.conf$/',$file) ))
                                if (is_file($realfile) )
                                {
                                        $title='(no title)';
                                        $fd=fopen($realfile, "r");

                                        while (!feof($fd))
                                        {
                                                $buffer=fgets($fd, 4096);

                                                if (preg_match("/^\s*TITLE\s+(.*)/i", $buffer, $matches)) { $title=$matches[1]; }
                                        }

                                        fclose ($fd);
                                        $titles[$file] = $title;
                                        # print "<li><a href=\"?mapname=$file\">$file</a> - <span class=\"comment\">$title</span></li>\n";
                                        $n++;
                                }
                        }

                        closedir ($dh);
                }
                else { print "<LI>Can't Open mapdir to read</LI>"; }
                
                ksort($titles);
                
                foreach ($titles as $file=>$title)
                {
                        $title = $titles[$file];
                        print "<li><a href=\"?mapname=$file\">$file</a> - <span class=\"comment\">$title</span></li>\n";
                }

                if ($n == 0) { print "<LI>No files</LI>"; }
        }
        else { print "<LI>NO DIRECTORY named $mapdir</LI>"; }

        print "</UL>";

        print "</div>"; // dlgbody
        print '<div class="dlgHelp" id="start_help">PHP Weathermap ' . $WEATHERMAP_VERSION
                . ' Copyright &copy; 2005-2007 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>';

        if ($debug)
                print_r ($paramarray);

        if ($debug)
                print_r ($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);
}
// vim:ts=4:sw=4:
?>