Identifying statements requiring additional processing when forwarding a web page description

• US 20040177318A1
• Filed: 03/03/2003
• Published: 09/09/2004
• Est. Priority Date: 03/03/2003
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Ghosh, Sanjib, Raja, Nagendra Kumar, Mueller, Thomas R.
• Granted Patent: US 8,230,327 B2
• Time in Patent Office: Days
• US Class Current: 715/501.1
• CPC Class Codes: G06F 40/143 Markup, e.g. Standard Generalized Markup Language [SGML] or Document Type Definition [DTD]
• CPC Class Codes: G06F 40/166 Editing, e.g. inserting or deleting
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/2895 Intermediate processing functionally located close to the data provider application, e.g. reverse proxies
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A system which enables an administrator to conveniently specify statements of a web page description which may require additional processing. The administrator may select from a list of statement types, and a language grammar corresponding to the selected statement type is displayed. The administrator may provide variable data associated with the fields of the displayed language grammar, and a rule instance is created from the language grammar and the variable data. An intermediate server may determine whether each statement of a web page description matches any of the rule instances. If a match is detected, the corresponding statement is determined to potentially require additional processing (such as modification of a URL in a reverse proxy server).

Claims

1. A method of enabling a user to identify a plurality of statements potentially requiring additional processing, said plurality of statements being contained in a web page description, said method comprising:

displaying a language grammar of a statement type, wherein said language grammar and said statement type are defined by a language used to specify said web page description; and

enabling said user to incorporate a variable data into said language grammar to generate a rule instance,

wherein said rule instance identifies at least some of said plurality of statements.

2. The method of claim 1, further comprising:

listing a plurality of statement types including said statement type; and

providing said user an ability to select said statement type from said plurality of statement types,

wherein said displaying and said enabling are performed in response to said user selecting said statement type.

3. The method of claim 2, further comprising storing said rule instance in XML format, wherein said rule instance comprises a field name and a field value, wherein said field value comprises said variable data.

4. The method of claim 2, further comprising:

receiving said web page description; and

examining each statement in said web page description to determine whether said statement matches said rule instance,

wherein said receiving and said examining are performed in an intermediate server.

5. The method of claim 2, further comprising enforcing a constraint when generating said rule instance.

6. The method of claim 5, wherein said constraint comprises ensuring that variable data is entered for a field in said language grammar.

7. The method of claim 2, wherein said language comprises HTML, and said plurality of statement types comprise an attribute statement type, a form statement type, an applet statement type, and a TagText statement type.

8. The method of claim 2, wherein said language comprises JavaScript (JS), and said plurality of statement types comprise a variable statement type and a function statement type.

9. The method of claim 2, wherein said language comprises extended meta language (XML), and said plurality of statement types comprise a TagText statement type and an attribute statement type.

10. A computer readable medium carrying one or more sequences of instructions for causing a system to enable a user to identify a plurality of statements potentially requiring additional processing, said plurality of statements being contained in a web page description, wherein execution of said one or more sequences of instructions by one or more processors contained in said system causes said one or more processors to perform the actions of:

displaying a language grammar of a statement type, wherein said language grammar and said statement type are defined by a language used to specify said web page description; and

enabling said user to incorporate a variable data into said language grammar to generate a rule instance,

wherein said rule instance identifies at least some of said plurality of statements.

11. The computer readable medium of claim 10, further comprising:

listing a plurality of statement types including said statement type; and

providing said user an ability to select said statement type from said plurality of statement types,

wherein said displaying and said enabling are performed in response to said user selecting said statement type.

12. The computer readable medium of claim 11, further comprising storing said rule instance in XML format, wherein said rule instance comprises a field name and a field value, wherein said field value comprises said variable data.

13. The computer readable medium of claim 11, further comprising:

receiving said web page description; and

examining each statement in said web page description to determine whether said statement matches said rule instance,

wherein said receiving and said examining are performed in an intermediate server.

14. The computer readable medium of claim 11, further comprising enforcing a constraint when generating said rule instance.

15. The computer readable medium of claim 14, wherein said constraint comprises ensuring that variable data is entered for a field in said language grammar.

16. The computer readable medium of claim 11, wherein said language comprises HTML, and said plurality of statement types comprise an attribute statement type, a form statement type, an applet statement type, and a TagText statement type.

17. The computer readable medium of claim 11, wherein said language comprises JavaScript (JS), and said plurality of statement types comprise a variable statement type and a function statement type.

18. The computer readable medium of claim 11, wherein said language comprises extended meta language (XML), and said plurality of statement types comprise a TagText statement type and an attribute statement type.

19. A system for enabling a user to identify a plurality of statements potentially requiring additional processing, said plurality of statements being contained in a web page description, said system comprising:

means for displaying a language grammar of a statement type, wherein said language grammar and said statement type are defined by a language used to specify said web page description; and

means for enabling said user to incorporate a variable data into said language grammar to generate a rule instance,

wherein said rule instance identifies at least some of said plurality of statements.

20. The system of claim 19, further comprising:

means for listing a plurality of statement types including said statement type; and

means for providing said user an ability to select said statement type from said plurality of statement types,

wherein said means for displaying displays said language grammar, and said means for enabling enables said user to incorporate said variable data in response to said user selecting said statement type.

21. The system of claim 20, further comprising means for storing said rule instance in XML format, wherein said rule instance comprises a field name and a field value, wherein said field value comprises said variable data.

22. The system of claim 20, further comprising:

means for receiving said web page description; and

means for examining each statement in said web page description to determine whether said statement matches said rule instance,

wherein said means for receiving and said means for examining are comprised in an intermediate server.

23. The system of claim 22, further comprising means for enforcing a constraint when generating said rule instance, wherein said means for enforcing is also comprised in said intermediate server.

24. The system of claim 23, wherein said means for enforcing ensures that variable data is entered for a field in said language grammar.

25. The system of claim 20, wherein said language comprises HTML, and said plurality of statement types comprise an attribute statement type, a form statement type, an applet statement type, and a TagText statement type.

26. The system of claim 20, wherein said language comprises JavaScript (JS), and said plurality of statement types comprise a variable statement type and a function statement type.

27. The system of claim 20, wherein said language comprises extended meta language (XML), and said plurality of statement types comprise a TagText statement type and an attribute statement type.

28. A system for enabling a user to identify a plurality of statements potentially requiring additional processing, said plurality of statements being contained in a web page description, said system comprising:

a first interface sending data representing a language grammar of a statement type, wherein said language grammar and said statement type are defined by a language used to specify said web page description, wherein a display of said language grammar is generated based on said data;

a second interface receiving data representing a variable data; and

a processing unit incorporating said variable data into said language grammar to generate a rule instance,

wherein said rule instance identifies at least some of said plurality of statements.

29. The system of claim 28, wherein said processing unit causes a plurality of statement types including said statement type to be listed in said display and receives a selection data indicating that said user has selected said statement type from said plurality of statement types, wherein said processing unit controls said first interface and said second interface to cause said display to be generated in response to receiving said selection data.

30. The system of claim 29, further comprising a memory storing said rule instance in XML format, wherein said rule instance comprises a field name and a field value, wherein said field value comprises said variable data.

31. The invention of claim 29, wherein said system comprises an intermediate server, said processing unit receiving said web page description and examining each statement in said web page description to determine whether said statement matches said rule instance.

32. The system of claim 31, wherein said processing unit enforces a constraint when generating said rule instance.

33. The system of claim 32, wherein said constraint comprises ensuring that variable data is entered for a field in said language grammar.

34. The system of claim 29, wherein said language comprises HTML, and said plurality of statement types comprise an attribute statement type, a form statement type, an applet statement type, and a JSToken statement type.

35. The system of claim 29, wherein said language comprises JavaScript (JS), and said plurality of statement types comprise a variable statement type and a function statement type.

36. The system of claim 29, wherein said language comprises extended meta language (XML), and said plurality of statement types comprise a TagText statement type and an attribute statement type.