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[Problem] Script causes the page to automatically refresh [Problem]


catherinePHP

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I don't know what's wrong with my script, when I login into a page it redirects me to the admin page normally but the admin page keeps refreshing! I've located the problem which is in my javascript but I don't know what's wrong with it.

 

Here is the javascript code:

$(document).ready(function() {

	(function($){  
		$.fn.avu = function() {  

		$.post('backend/build_table.php', { 'session_id' : sessid }, function(data) {

			// login check
			try {
				JSON.parse(data);
			} catch (e) {
				location.href = './index.php';
				return;
			}

			data = jQuery.parseJSON(data);

			var tbl = "";
			$.each(data, function(id, row) {
				$('.tooltip').hide();
				$("tbody tr").remove();

				var tbl_row = "";
				var hash;
				var name;
				$.each(this, function(k , v) {

						if(k=='hash'){hash=v;}
						if(k=='name'){name=v;}

						if(k=='filepath' || k=='results'){return;}

						else if(k=='size'){ tbl_row += '<td class="'+k+'">'+bytesToSize(v)+"</td>\n"; }
						else if(k=='scanned')
						{ 
							// set status
							if(v=='0')
							{
								v = 'In queue';
							}
							else if(v=='1' && row['results'] == null)
							{
								v = 'Clean';
							}
							else if(v=='1' && row['results'] != null)
							{
								v='';
								var results = jQuery.parseJSON( row['results']);
								v+='<ul>';
								$.each(results, function(kr,r) {								
									v+='<li class="small"><span class="tt" title="Scanned with: '+r.scanner+'">'+r.result+ '</span></li>' + "\n";
								});
								v+='<ul>';
							}


							tbl_row += '<td class="'+k+'">'+v+"</td>\n"; 
						}
						else{ tbl_row += '<td class="'+k+'">'+v+"</td>\n"; }
				})

				// add extra row
				var durl = 'download/'+hash+'/'+name;
				tbl_row +=  '<td><a href="'+durl+'" target="blank"><img src="assets/img/download.png" class="tt bdown" title="Download file" /></a>'+
							'<img src="assets/img/delete.png" class="tt bdel"title="Remove file" /></td>';
				
				tbl += '<tr id="'+row['id']+'">'+tbl_row+"</tr>\n";

			});

			// build
			$("tbody").html(tbl);
			$('.tt').tooltip({'delay':4});

			 // remove file
			$(".bdel").click(function() {

				var id= $(this).parent().parent().attr('id');
				
				$.post("backend/delete_file.php", { id: id, 'session_id' : sessid },
				function(data) {
					$('tr[id="'+id+'"]').remove();
					$('.tooltip').hide();

					//rebuild
					setTimeout(function() {
						$('tbody').avu();
					}, 2000);


				});

			});

		});

		};
	})(jQuery);  

	// build and refresh table
	$('tbody').avu();
	setInterval(function() {
		$('tbody').avu();
	}, 20000);

	/**
	 * Convert number of bytes into human readable format
	 *
	 * @param integer bytes     Number of bytes to convert
	 * @return string
	 */
	function bytesToSize(bytes) {
		var sizes =['Bytes','KB','MB','GB','TB'];

		if(bytes==0) return 'n/a';
		var i=parseInt(Math.floor(Math.log(bytes)/Math.log(1024)));
		return Math.round(bytes/Math.pow(1024,i),2)+' '+sizes[i];
	}

});

What causes the page to refresh every 2 seconds? and how can I fix this?

 

Thanks in advance :)

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Perhaps it's failing at this line, and therefore redirects you to ./index.php ?

// login check
try {
	JSON.parse(data);
} catch (e) {
	location.href = './index.php';
	return;
}

- W

Edited by yomanny
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