METHOD AND SYSTEM FOR UNIFORM RESOURCE LOCATOR TRANSFORMATION

• US 20130124698A1
• Filed: 01/08/2013
• Published: 05/16/2013
• Est. Priority Date: 08/16/2000
• Status: Active Grant

• Current Assignee: Parallel Networks, LLC (epicRealm Licensing LP)
• Original Assignee: Parallel Networks, LLC (epicRealm Licensing LP)
• Inventors: Saxena, Avinash C.
• Granted Patent: US 9,648,076 B2
• Time in Patent Office: Days
• US Class Current: 709/219
• CPC Class Codes: G06F 16/9574 of access to content, e.g. by caching
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
• CPC Class Codes: H04L 67/146 Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding
• CPC Class Codes: H04L 67/561 Adding application-functional data or data for application control, e.g. adding metadata
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A web browser (20) at a client (12) generates a request (26) for content from an origin server (18). A cache server (16) intercepts the request and examines the request to determine whether the request should be transformed. More specifically, the cache server compares transform criteria (40) to a uniform resource identifier portion (28) and a header portion (30) associated with the request. By transforming the request such that information in the header portion is included in the uniform resource identifier portion, the cache server can cache the content associated with the request using the uniform resource identifier portion of the request.

Claims

1. A method for communicating data, comprising:

receiving a first request, the first request comprising a first uniform resource identifier and a header portion, the first request requesting a content item as specified by the first uniform resource identifier and the header portion;

comparing the first request to a transform criteria;

generating a second request from the first request in response to at least a portion of the first request matching the transform criteria, the second request consisting of a second uniform resource identifier associated with the content item and different than the first uniform resource identifier.

2. The method of claim 1, wherein the second request is generated based on a specific transform associated with the matching portion of the first request, the second request generated by performing an action associated with the specific transform based on the header portion and the first uniform resource identifier of the first request to yield the second uniform resource identifier, the first and second uniform resource identifiers being in a hypertext transport protocol.

3. The method of claim 1, further comprising:

determining whether the content item is stored in a cache based on the second uniform resource identifier; and

retrieving the content item from the cache in response to the content item being cached based on the second uniform resource identifier.

4. The method of claim 3, further comprising:

sending the first request to an origin server in response to the content item not being cached based on the second uniform resource identifier;

receiving the content item from the origin server;

providing the content item in response to the first request.

5. The method of claim 4, further comprising:

caching the content item at the cache based on the second uniform resource identifier of the second request.

6. The method of claim 1, wherein the second request uniquely identifies the content item that is originally dependent on the header of the first request using only the second uniform resource identifier.

7. The method of claim 1, further comprising:

in response to the first request not matching the transform criteria, determining whether the content item is stored in a cache based on the first uniform resource identifier; and

retrieving the content item from the cache in response to the content item being cached based on the first uniform resource identifier.

8. A system for communicating data, comprising:

means for receiving a first request, the first request comprising a first uniform resource identifier and a header portion, the first request requesting a content item as specified by the first uniform resource identifier and the header portion;

means for comparing the first request to a transform criteria;

means for generating a second request from the first request in response to at least a portion of the first request matching the transform criteria, the second request consisting of a second uniform resource identifier associated with the content item and different than the first uniform resource identifier.

9. The system of claim 8, wherein the second request is generated based on a specific transform associated with the matching portion of the first request, the second request generated by performing an action associated with the specific transform based on the header portion and the first uniform resource identifier of the first request to yield the second uniform resource identifier, the first and second uniform resource identifiers being in a hypertext transport protocol.

10. The system of claim 8, further comprising:

means for determining whether the content item is stored in a cache based on the second uniform resource identifier; and

means for retrieving the content item from the cache in response to the content item being cached based on the second uniform resource identifier.

11. The system of claim 10, further comprising:

means for sending the first request to an origin server in response to the content item not being cached based on the second uniform resource identifier;

means for receiving the content item from the origin server;

means for providing the content item in response to the first request.

12. The system of claim 11, further comprising:

means for transforming the first request to the second request;

means for caching the content item at the cache based on the second uniform resource identifier of the second request.

13. The system of claim 8, wherein the second request uniquely identifies the content item that is originally dependent on the header of the first request using only the second uniform resource identifier.

14. The system of claim 8, further comprising:

in response to the first request not matching the transform criteria, means for determining whether the content item is stored in a cache based on the first uniform resource identifier; and

means for retrieving the content item from the cache in response to the content item being cached based on the first uniform resource identifier.

15. A non-transitory computer readable storage medium including code for communicating data, the code operable to:

receive a first request, the first request comprising a first uniform resource identifier and a header portion, the first request requesting a content item as specified by the first uniform resource identifier and the header portion;

compare the first request to a transform criteria;

generate a second request from the first request in response to at least a portion of the first request matching the transform criteria, the second request consisting of a second uniform resource identifier associated with the content item and different than the first uniform resource identifier.

16. The non-transitory computer readable storage medium of claim 15, wherein the second request is generated based on a specific transform associated with the matching portion of the first request, the second request generated by performing an action associated with the specific transform based on the header portion and the first uniform resource identifier of the first request to yield the second uniform resource identifier, the first and second uniform resource identifiers being in a hypertext transport protocol.

17. The non-transitory computer readable storage medium of claim 15, wherein the code is further operable to:

determine whether the content item is stored in a cache based on the second uniform resource identifier; and

retrieve the content item from the cache in response to the content item being cached based on the second uniform resource identifier.

18. The non-transitory computer readable storage medium of claim 17, wherein the code is further operable to:

send the first request to an origin server in response to the content item not being cached based on the second uniform resource identifier;

receive the content item from the origin server;

provide the content item in response to the first request.

19. The non-transitory computer readable storage medium of claim 18, wherein the code is further operable to:

cache the content item at the cache based on the second uniform resource identifier of the second request.

20. The non-transitory computer readable storage medium of claim 15, wherein the second request uniquely identifies the content item that is originally dependent on the header of the first request using only the second uniform resource identifier.

21. The non-transitory computer readable medium of claim 15, wherein the code is further operable to:

in response to not the first request not matching the transform criteria, determine whether the content item is stored in a cache based on the first uniform resource identifier; and

retrieve the content item from the cache in response to the content item being cached based on the first uniform resource identifier.