Methods and systems for JavaScript parsing

Patent metadata

Field	Value
Publication number	US-8984095-B2
Application number	US-201313967924-A
Country	US
Kind code	B2
Filing date	Aug 15, 2013
Priority date	Jul 12, 2007
Publication date	Mar 17, 2015
Grant date	Mar 17, 2015

Abstract

The present invention relates to systems, apparatus, and methods of parsing a script within an HTML page. The method includes receiving a script object, where the script object includes text. The method further includes parsing the text of the script object for tokens and comparing the parsed tokens with a valid tokens list to determine locations within the text of the script object that include potential universal resource locators (URLs). The method includes parsing before and after the determined locations until complete URLs are constructed, and forwarding the complete URLs to a detector. The detector then determines whether the complete URLs are valid. The method then sends object retrieval requests to websites associated with the valid complete URLs.

First claim

What is claimed is:

1. A method of parsing a script within an HTML page, the method comprising:
receiving a script object, wherein the script object includes text;
parsing the text of the script object for tokens without updating a state machine for every byte processed;
comparing the parsed tokens with a valid tokens list to determine locations within the text of the script object that include potential universal resource locators (URLs);
parsing before and after the determ…

Assignees

• Viasat Inc

Inventors

• Sebastian William B

Classifications

• H04L9/3213

  Electricity · mapped topic

• G06F40/242

  Physics · mapped topic

• G06F40/134

  Physics · mapped topic

• H04L67/02

  Electricity · mapped topic

• G06F40/211

  Physics · mapped topic