Methods, devices and computer programs enabling data to be pushed in a network environment comprising proxies

Patent metadata

Field	Value
Publication number	US-10419573-B2
Application number	US-201615217562-A
Country	US
Kind code	B2
Filing date	Jul 22, 2016
Priority date	Jul 24, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

The present invention relates to optimizing pushing of at least one resource associated with a main resource, in response to a request for this main resource, in an intermediary component comprising a cache memory. After having sent a request for a main resource to a second component different from the intermediary component, at least one identifier of at least one resource to be pushed by the second component is received from the second component in response to the sent request. Then, at least one of said at least one received identifier is stored in a list associated with the main resource, the list being stored in the cache memory.

First claim

The invention claimed is:

1. A method for pushing at least one second resource associated with a first resource, in response to a request for the first resource, the method being carried out in an intermediary component comprising a memory, the method comprising:
receiving a first request for a first resource;
sending a request for the first resource to a second component different from the intermediary component;
receiving from the second component, in response to the sent request, at least one identifier of at least one second resource to be pushed by the second component;
storing at least one of said at least one received identifier in a list associated with the first resource, the list being stored in the memory;
receiving a second request for the first resource from a client device;
transmitting the first resource to the client device;
selecting at least one second resource identified in the list associated with the first resource; and
pushing the selected at least one second resource to the client device.

2. The method of claim 1 , wherein the list is stored in association with the first resource and in association with an item of information, the item of information being an item of information sent to the second component as part of the request for the first resource and being different from an identifier of the first resource.

3. The method of claim 1 , wherein at least one received identifier is received as a part of the pushed transmission of a resource corresponding to said at least one received identifier by the second component.

4. The method of claim 1 , wherein selecting at least one second resource comprises:
obtaining the list associated with the first resource from the memory, the list being obtained as a function of the first resource requested in the second request; and
selecting at least one identifier of at least one resource listed in the obtained list.

5. The method of claim 4 , wherein the list is obtained as a function of the first resource requested in the second request and as a function of an item of information of the second request, the item of information of the second request being different from an identifier of the first resource.

6. The method of claim 4 , wherein the obtaining comprises:
identifying a plurality of lists associated with the first resource, the lists being identified as a function of the first resource requested in the second request; and
selecting one of the identified lists as a function of an item of information of the second request, the item of information being different from an identifier for the first resource.

7. The method of claim 4 , further comprising checking whether or not the at least one second resource corresponding to the at least one selected identifier is stored in the memory.

8. The method of claim 7 , further comprising requesting and receiving the at least one second resource corresponding to the at least one selected identifier if it is determined that the at least one second resource corresponding to the at least one selected identifier is not stored in the memory, the at least one second resource corresponding to the at least one selected identifier being requested from the second component.

9. The method of claim 4 , further comprising checking whether or not the at least one second resource corresponding to the at least one selected identifier is valid.

10. The method of claim 9 , further comprising requesting the at least one second resource corresponding to the at least one selected identifier if it is determined that the at least one second resource corresponding to the at least one selected identifier is not valid, the at least one second resource corresponding to the at least one selected identifier being requested from the second component.

11. The method of claim 4 , further comprising:
receiving a cancellation request for a resource being pushed;
modifying the obtained list by removing from the obtained list an identifier of the resource being pushed.

12. The method of claim 4 , further comprising:
receiving a request for a resource referring to the first resource; and
modifying the obtained list by adding to the obtained list an identifier of the resource referring the first resource.

13. The method of claim 1 , further comprising checking whether or not the requested first resource is stored in the memory of the intermediary component and whether or not the requested first resource stored in the memory is valid.

14. The method of claim 13 wherein the second request for the first resource is forwarded to the second component as a conditional request.

15. The method of claim 1 , further comprising forwarding the second request for the first resource and receiving at least one response to a request for the first resource in response to forwarding the second request.

16. A non-transitory computer-readable storage medium storing instructions of a computer program that when executed cause one or more processors to perform a method, the method comprising:
receiving a first request for a first resource;
sending a request for the first resource to a second component different from the intermediary component;
receiving from the second component, in response to the sent request, at least one identifier of at least one second resource to be pushed by the second component;
storing at least one of said at least one received identifier in a list associated with the first resource, the list being stored in the memory;
receiving a second request for the first resource from a client device;
transmitting the first resource to the client device; selecting at least one second resource identified in the list associated with the first resource; and
pushing the selected at least one second resource to the client device.

17. A device for pushing at least one second resource associated with a first resource, in response to a request for the first resource, the device comprising a memory and a processor configured for carrying out a process comprising:
receiving a first request for a first resource;
sending a request for the first resource to a component different from the device;
receiving from the component, in response to the sent request, at least one identifier of at least one second resource to be pushed by the component;
storing at least one of said at least one received identifier in a list associated with the first resource, the list being stored in the memory;
receiving a second request for the first resource from a client device;
transmitting the first resource to the client device;
selecting at least one second resource identified in the list associated with the first resource; and
pushing the selected at least one second resource to the client device.

18. The device of claim 17 , wherein the list is stored in association with the first resource and in association with an item of information, the item of information being an item of information sent to the component as part of the request for the first resource and being different from an identifier of the first resource.

19. The device of claim 17 , wherein at least one received identifier is received as a part of the pushed transmission of a resource corresponding to said at least one received identifier by the component.

20. The device of claim 17 , wherein the processor is further configured so that the selecting at least one second resource comprises:
obtaining the list associated with the first resource from the memory, the list being obtained

Assignees

• Canon Kk

Inventors

• Ruellan Hervé
• Bellessort Romain
• Fablet Youenn

Classifications

• G06F16/9574

  of access to content, e.g. by caching · CPC title

• H04L67/02 Primary

  based on web technology, e.g. hypertext transfer protocol [HTTP] · CPC title

• H04L67/26

  Electricity · mapped topic

• H04L67/2842 Primary

  Electricity · mapped topic

• H04L67/561

  Adding application-functional data or data for application control, e.g. adding metadata · CPC title