Systems and methods for rewriting a stream of data via intermediary
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United States of America Patent
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May 13, 2014
Grant Date -
Jul 28, 2011
app pub date -
Dec 22, 2010
filing date -
Dec 23, 2009
priority date (Note) -
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Abstract
A streaming rewrite method and system that can execute an efficient multiple pattern search method that parses a response in a data structure of an appliance. The method and system can avoid copying to a buffer by parsing data across a data structure to identify search patterns and phrases that may be identified by one or more actions and/or rules of an appliance or system. A parser can input one or more search patterns, and parse a body of a response or one or more packets for the search patterns. The parser can obtain pattern information about the packets and/or the response, and store this information in a database. The appliance can then perform lookups in the database for pattern information and perform rewrites in accordance with the stored pattern information. The rewritten response and/or packets can then be transmitted to a destination.
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