Methods and apparatus for establishing collaboration using browser state information

• US 7,003,550 B1
• Filed: 02/27/2001
• Issued: 02/21/2006
• Est. Priority Date: 10/11/2000
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Cleasby, Andrew R., Cummings, Charles D.
• Primary Examiner(s): El-Hady, Nabil
• Application Number:
  US09/794,863
• Time in Patent Office: 1,820 Days
• Field of Search: 709200-253
• US Class Current: 709/205
• CPC Class Codes: G06F 16/954 Navigation, e.g. using categorised browsing
• CPC Class Codes: H04L 12/1822 Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/403 Arrangements for multi-party communication, e.g. for conferences data switching systems for conference H04L12/18; arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities H04M3/56; television conferencing systems H04N7/15

Abstract

Mechanisms and techniques provide the system that allows a server computer system to capture the complete state of the browser process performing on a client computer system in a remote manner. In the server computer system, which may be a collaboration adapter computer system operating a dynamic content adapter, the invention provides a system and method, such as a servlet process, for initiating a collaboration adapter session with a client computer system. The system receives a content object from the client computer system and storing document content information such as HTML and frameset content, URL information, cookie information and the like contained within the content object for shared access by participants to the collaboration adapter session. The system also generates a collaboration adapter session identification information for the collaboration adapter session based on document location information contained within the content object. The system then returns the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session.

Claims

1. In a server computer system, a method for initiating a collaboration adapter session with a client computer system, the method comprising the steps of:

receiving a content object from the client computer system;

storing document content information contained within the content object for shared access by participants to the collaboration adapter session;

generating collaboration adapter session identification information for the collaboration adapter session based on document location information contained within the content object and a copy server session identification; and

returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session.

2. The method of claim 1 wherein the step of storing the document content information comprises the step of:

for each document content object identified in the content object;

i) extracting the document content information associated with that document content object from the content object;

ii) extracting document identity information associated with that document content object from the content object; and

iii) transferring the document content information and the document identify information in a collaboration content database for shared access by participants to the collaboration adapter session.

3. The method of claim 2 wherein:

at least one of the document content objects identified in the content object is a frameset document content object; and

wherein when the step of extracting the document content information from the content object extracts a frameset document content object, the step of extracting modifies a source attribute of the frameset document content object to reference a subframe location of a subframe associated with the frameset document content object.

4. The method of claim 2 wherein the document identity information includes identifier content and the step of extracting document identity information from the content object comprises the steps of:

obtaining the identifier content from the document identity information;

obtaining identifier attributes from the server computer system;

combining the identifier content and the identifier attributes to reconstitute a document identifier that is associated with the document content information.

5. The method of claim 4 wherein:

the identifier content is cookie information;

the identifier attributes are cookie attributes which include a domain name and a path associated with a location of the document content information; and

the step of obtaining the identifier attributes obtains the cookie attributes from a configuration file in the server computer system associated with a domain identified by the content object.

6. The method of claim 2 wherein:

the step of transferring transfers the document content information and the document identity information for each document content object identified in the content object to a copy server for shared access by participants to the collaboration adapter session; and

wherein the step of storing further comprises, in response to the step of transferring, receiving a copy server session identification from the copy server.

7. The method of claim 6 wherein the step of generating collaboration adapter session identification information comprises the steps of:

extracting document location information for any document content objects identified in the content object;

providing, to a collaboration adapter, a request to establish a collaboration adapter session, the request including the document location information for each document content object in the content object;

receiving, in response to providing the request, collaboration adapter session identification information including;

i) a collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

8. The method of claim 7 wherein the step of returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session comprises the steps of:

forwarding, to the client computer system, the collaboration adapter session identification information including;

i) the collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

9. A server computer system comprising:

an interface;

a memory;

a processor; and

an interconnection mechanism coupling the interface, the memory, and the processor;

wherein the memory is configured with a collaboration servlet application, that when performed on the processor, provides a servlet process that causes the processor to initiate a collaboration adapter session with a client computer system, by performing the operations of;

receiving, via the interface, a content object from the client computer system, the content object being placed in the memory;

storing, in a copy server coupled to the interface, document content information contained within the content object for shared access by participants to the collaboration adapter session;

generating, in the memory, collaboration adapter session identification information for the collaboration adapter session based on document location information contained within the content object and a copy server session identification; and

returning the collaboration adapter session identification information to the client computer system, via the interface, such that the client computer system can participate in the collaboration adapter session.

10. The server computer system of claim 9 wherein when the servlet process performs the operation of storing the document content information, the servlet process performs, for each document content object identified in the content object, the operations of:

i) extracting the document content information associated with that document content object from the content object in the memory;

ii) extracting document identity information associated with that document content object from the content object in the memory; and

iii) transferring, from the memory, the document content information and the document identify information into a collaboration content database coupled to the interface, for shared access by participants to the collaboration adapter session.

11. The server computer system of claim 10 wherein:

at least one of the document content objects identified in the content object is a frameset document content object; and

wherein when the servlet process performs the operation of extracting the document content information from the content object in the memory, the servlet process extracts a frameset document content object and modifies a source attribute of the frameset document content object in the memory to reference a subframe location of a subframe associated with the frameset document content object.

12. The server computer system of claim 10 wherein the document identity information in the memory includes identifier content and wherein when the servlet process performs the operation of extracting document identity information from the content object in the memory, the servlet process performs the operations of:

obtaining the identifier content from the document identity information in the memory;

obtaining identifier attributes from a storage location in the server computer system;

combining the identifier content and the identifier attributes in the memory to reconstitute a document identifier in the memory that is associated with the document content information.

13. The server computer system of claim 12 wherein:

the identifier content in the memory is cookie information;

the identifier attributes in the memory are cookie attributes which include a domain name and a path associated with a location of the document content information; and

wherein when the servlet process performs the operation of obtaining the identifier attributes from a storage location in the server computer system, the servlet process obtains the cookie attributes from a configuration file in the server computer system associated with a domain identified by the content object.

14. The server computer system of claim 10 wherein:

the servlet process operation of transferring transfers the document content information and the document identity information for each document content object identified in the content object from the memory to a copy server via the interface for shared access by participants to the collaboration adapter session; and

wherein when the servlet operation performs the operations of storing, the servlet process further performs, in response to the operation of transferring, an operation of receiving, via the interface, a copy server session identification from the copy server.

15. The server computer system of claim 14 wherein when the servlet process performs the operation of generating collaboration adapter session identification information, the servlet process performs the operations of:

extracting document location information in the memory for any document content objects identified in the content object;

providing, to a collaboration adapter via the interface, a request to establish a collaboration adapter session, the request including the document location information for each document content object in the content object;

receiving, into the memory via the interface in response to providing the request, collaboration adapter session identification information including;

i) a collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

16. The server computer system of claim 15 wherein when the servlet process performs the operation of returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session, the servlet process performs the operation of:

forwarding, to the client computer system from the memory, via the interface, the collaboration adapter session identification information including;

i) the collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

17. A computer program product having a computer-readable medium including servlet application computer program logic encoded thereon for initiating a collaboration adapter session with a client computer system, such that the computer program logic, when performed on at least one processor within a server computer system, causes the at least one processor to perform the operations of:

receiving a content object from the client computer system;

storing document content information contained within the content object for shared access by participants to the collaboration adapter session;

generating collaboration adapter session identification information for the collaboration adapter session based on document location information contained within the content object and a copy server session identification; and

returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session.

18. The computer program product of claim 17 wherein the computer program logic that causes the processor to perform the operation of storing the document content information further causes the processor to perform, for each document content object identified in the content object, the operations of:

i) extracting the document content information associated with that document content object from the content object;

ii) extracting document identity information associated with that document content object from the content object; and

iii) transferring the document content information and the document identify information in a collaboration content database for shared access by participants to the collaboration adapter session.

19. The computer program product of claim 18 wherein:

wherein the computer program logic that causes the processor to perform the operation of transferring transfers the document content information and the document identity information for each document content object identified in the content object to a copy server for shared access by participants to the collaboration adapter session; and

wherein the computer program logic that causes the processor to perform the operation of storing further comprises, in response to the operation of transferring, receiving a copy server session identification from the copy server.

20. The computer program product of claim 19 wherein the computer program logic that causes the processor to perform the operation of generating collaboration adapter session identification information, causes the processor to perform the operations of:

extracting document location information for any document content objects identified in the content object;

providing, to a collaboration adapter, a request to establish a collaboration adapter session, the request including the document location information for each document content object in the content object;

receiving, in response to providing the request, collaboration adapter session identification information including;

i) a collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

21. The computer program product of claim 20 wherein the computer program logic that causes the processor to perform the operation of returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the collaboration adapter session, further causes the processor to perform the operations of:

forwarding, to the client computer system, the collaboration adapter session identification information including;

i) the collaboration adapter session identification identifying the collaboration adapter session; and

ii) document location information for a single portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

22. A server computer system comprising:

an interface;

a memory;

a processor; and

an interconnection mechanism coupling the interface, the memory, and the processor;

wherein the memory is configured with a collaboration servlet application, that when performed on the processor, provides a means for causing the processor to initiate a collaboration adapter session with a client computer system, such means including;

means for receiving, via the interface, a content object from the client computer system, the content object being placed in the memory;

means for storing, in a copy server coupled to the interface, document content information contained within the content object for shared access by participants to the collaboration adapter session;

means for generating, in the memory, collaboration adapter session identification information for the collaboration adapter session based on document location information contained within the content object and a copy server session identification; and

means for returning the collaboration adapter session identification information to the client computer system, via the interface, such that the client computer system can participate in the collaboration adapter session.

23. In a server computer system, a method for initiating a collaboration adapter session with a client computer system, the method comprising

receiving content object;

obtaining document content object within said content object;

extracting document content information from document content object;

extracting document identity information including identifier content from said content object;

obtaining identifier attributes from the server computer;

combining the identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information;

transferring said document content information and said document identity information to a copy server for shared access by participants to a collaboration server; and

receiving copy server session identification information from the copy server.

24. The method of claim 23 further comprising:

determining whether the content object comprises a frameset document content object; and

modifying a source attribute of said frameset document content object to reference a subframe location of a subframe associated with said frameset document content object when said content object comprises a frameset document content object.

25. The method of claim 23 wherein said combining further comprises determining whether there are other document content objects to be processed in the content object and when there are other document content objects to be processed then performing said obtaining document content object within said content object, said extracting document content information from document content object, said extracting document identity information from said content object, said obtaining identifier attributes from the server computer, and said combining identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information.

26. In a server computer system, a method for initiating a collaboration adapter session with a client computer system, the method comprising:

extracting document location information for document content objects identified in a content object;

providing to a collaboration adapter a request to establish a collaboration adapter session;

receiving collaboration adapter session identification information; and

returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the shared collaboration adapter session, wherein said request includes at least one of document location information for a document content object in the content object, and a copy server session identification.

27. The method of claim 26 wherein said collaboration adapter session identification information includes at least one of a collaboration adapter session identification identifying the collaboration session, and document location information for a portion of document content information maintained by a copy server for initial shared access by participants to the collaboration adapter session.

28. A server computer system comprising:

an interface;

a memory;

a processor; and

an interconnection mechanism coupling the interface, the memory, and the processor;

wherein the memory is configured with a collaboration servlet application, that when performed on the processor, provides a servlet process that causes the processor to initiate a collaboration adapter session with a client computer system, by performing the operations of;

receiving content object;

obtaining document content object within said content object;

extracting document content information from document content object;

extracting document identity information from said content object;

obtaining identifier attributes from the server computer;

combining identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information;

transferring said document content information and said document identity information to a copy server for shared access by participants to a collaboration server; and

receiving copy server session identification information from the copy server.

29. The server computer system of claim 28 wherein the servlet process performs the operations of:

determining whether the content object comprises a frameset document content object; and

modifying a source attribute of said frameset document content object to reference a subframe location of the subframe associated with said frameset document content object when said content object comprises a frameset document content object.

30. The server computer system of claim 28 wherein the operation of combining further comprises determining whether there are other document content objects to be processed in the content object and when there are other document content objects to be processed then performing said obtaining document content object within said content object, said extracting document content information from document content object, said extracting document identity information from said content object, said obtaining identifier attributes from the server computer, and said combining identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information.

31. A server computer system comprising:

an interface;

a memory;

a processor; and

an interconnection mechanism coupling the interface, the memory, and the processor;

wherein the memory is configured with a collaboration servlet application, that when performed on the processor, provides a servlet process that causes the processor to initiate a collaboration adapter session with a client computer system, by performing the operations of;

extracting document location information for document content objects identified in a content object;

providing to a collaboration adapter a request to establish a collaboration adapter session;

receiving collaboration adapter session identification information; and

returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the shared collaboration adapter session, wherein said request includes at least one of document location information for a document content object in the content object, and a copy server session identification.

32. The server computer system of claim 31 wherein said collaboration adapter session identification information includes at least one of a collaboration adapter session identification identifying the collaboration session, and document location information for a portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.

33. A computer program product having a computer-readable medium including servlet application computer program logic encoded thereon for initiating a collaboration adapter session with a client computer system, such that the computer program logic, when performed on at least one processor within a server computer system, causes the at least one processor to perform the operations of:

receiving content object;

obtaining document content object within said content object;

extracting document content information from document content object;

extracting document identity information from said content object;

obtaining identifier attributes from the server computer;

combining identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information;

transferring said document content information and said document identity information to a copy server for shared access by participants to a collaboration server; and

receiving copy server session identification information from the copy server.

34. The computer program product of claim 33 wherein the servlet process performs the operations of:

determining whether the content object comprises a frameset document content object; and

modifying a source attribute of said frameset document content object to reference a subframe location of the subframe associated with said frameset document content object when said content object comprises a frameset document content object.

35. The computer program product of claim 33 wherein the operation of combining further comprises determining whether there are other document content objects to be processed in the content object and when there are other document content objects to be processed then performing said obtaining document content object within said content object, said extracting document content information from document content object, said extracting document identity information from said content object, said obtaining identifier attributes from the server computer, and said combining identifier content and identifier attributes to reconstitute a valid document identifier associated with said document content information.

36. A computer program product having a computer-readable medium including servlet application computer program logic encoded thereon for initiating a collaboration adapter session with a client computer system, such that the computer program logic, when performed on at least one processor within a server computer system, causes the at least one processor to perform the operations of:

extracting document location information for document content objects identified in a content object;

providing to a collaboration adapter a request to establish a collaboration adapter session;

receiving collaboration adapter session identification information; and

returning the collaboration adapter session identification information to the client computer system such that the client computer system can participate in the shared collaboration adapter session, wherein said request includes at least one of document location information for a document content object in the content object, and a copy server session identification.

37. The computer program product of claim 36 wherein said collaboration adapter session identification information includes at least one of a collaboration adapter session identification identifying the collaboration session, and document location information fro a portion of document content information maintained by the copy server for initial shared access by participants to the collaboration adapter session.