Webrtc api redirection with interception techniques

Patent metadata

Field	Value
Publication number	US-2020007643-A1
Application number	US-201916561428-A
Country	US
Kind code	A1
Filing date	Sep 5, 2019
Priority date	May 4, 2018
Publication date	Jan 2, 2020
Grant date	—

Abstract

A computing system includes a server to execute a first portion of a real-time media application so as to integrate with other desktop applications and other operating system functionality, and to redirect intercepted APIs of the real-time media application based on redirection code injected into the real-time media application so that a second portion of the real-time media application is redirected. A client computing device communicates with the server, and executes the redirected second portion of the real-time media application. The redirected second portion of the real-time media application corresponds to real-time media processing and networking off-loaded from the server to the client computing device.

First claim

1 . A computing system comprising:
a server configured to perform the following:
execute a first portion of a real-time media application so as to integrate with other desktop applications and other operating system functionality, and
redirect intercepted APIs of the real-time media application based on redirection code injected into the real-time media application so that a second portion of the real-time media application is redirected; and
a client computing device communicating with said server, and configured to execute the redirected second portion of the real-time media application, with the redirected second portion of the real-time media application corresponding to real-time media processing and networking off-loaded from the server to said client computing device.

2 . The computing system according to claim 1 wherein said virtual desktop server further comprises a browser including at least one of hooks and plug-ins configured to perform the following:
intercept the APIs of the real-time media application based on at least one of the hooks and plug-ins; and
inject the redirection code into the real-time media application based on the intercepted APIs.

3 . The computing system according to claim 1 further comprising a proxy server configured to perform the following:
intercept HTML content from a web server to be retrieved by the real-time media application; and
re-write the intercepted HTML content so that execution of the re-written HTML content causes the APIs of the real-time media application to be intercepted, and the redirection code to be then injected into the real-time media application based on the intercepted APIs.

4 . The computing system according to claim 1 further comprising a proxy server configured to perform the following:
intercept HTML content from a web server to be retrieved by the real-time media application; and
inject code into pages of the intercepted HTML content, with execution of the pages with the injected code causing the following:
intercept the APIs of the real-time media application, and
inject the redirection code into the real-time media application based on the intercepted APIs.

5 . The computing system according to claim 1 wherein said virtual desktop server further comprises a browser including at least one of a Browser Helper Object (BHO) and a Browser Extension configured to perform the following:
intercept the APIs of the real-time media application based on at least one of the BHO and Browser Extension; and
inject the redirection code into the real-time media application based on the intercepted APIs.

6 . The computing system according to claim 1 further comprising a micro-virtual private network (VPN) plug-in configured to perform the following:
intercept HTML content from a web server to be retrieved by the real-time media application; and
re-write the intercepted HTML content so that execution of the re-written HTML content causes the APIs of the real-time media application to be intercepted, and the redirection code to be then injected into the real-time media application based on the intercepted APIs.

7 . The computing system according to claim 1 further comprising a micro-virtual private network (VPN) plug-in configured to perform the following:
intercept HTML content from a web server to be retrieved by the real-time media application; and
inject code into pages of the intercepted HTML content, with execution of the pages with the injected code causing the following:
intercept the APIs of the real-time media application, and
inject the redirection code into the real-time media application based on the intercepted APIs.

8 . The computing system according to claim 1 wherein the virtual desktop server further comprises a modified electron application, with the modification based on decomposing binaries of the electron application to access the APIs of the real-time media application, adding hooks to inject the redirection code into the real-time media application based on the intercepted APIs, repackaging the electron application binaries, and resigning the electron application, with the modified electron application configured to perform the following:
intercept the APIs of the real-time media application based on hooking; and
inject the redirection code into the real-time media application based on the intercepted APIs.

9 . The computing system according to claim 1 wherein said virtual desktop server includes at least one security policy, and execution of at least part of the redirected portion of the real-time media application is based on the at least one security policy.

10 . A server comprising:
a memory and a processor cooperating with said memory to perform the following:
execute a first portion of a real-time media application, the real-time media application integrated with functionality of one or more other applications and operating systems,
inject redirection code into one or more intercepted APIs of the real-time media application, and
redirect the one or more intercepted APIs based on the injected redirection code so that a second portion of the real-time media application is redirected to a client computing device for execution, with the redirected second portion of the real-time media application corresponding to real-time media processing and networking off-loaded from the server to the client computing device.

11 . The server according to claim 10 wherein the redirected APIs correspond to real-time media processing.

12 . The server according to claim 10 wherein the redirected APIs correspond to peer-to-peer networking with another client computing device.

13 . The server according to claim 10 wherein said processor is further configured to perform the following:
intercept the APIs of the real-time media application based on hooking; and
inject the redirection code into the real-time media application based on the intercepted APIs.

14 . The server according to claim 10 further comprising a browser including at least one of hooks and plug-ins configured to perform the following:
intercept the APIs of the real-time media application based on at least one of the hooks and plug-ins; and
inject the redirection code into the real-time media application based on the intercepted APIs.

15 . A method for operating a server comprising:
executing a first portion of a real-time media application, the real-time media application integrated with functionality of one or more other applications and operating systems; injecting redirection code into one or more intercepted APIs of the real-time media application; and redirecting the one or more intercepted APIs based on the injected redirection code so that a second portion of the real-time media application is redirected to a client computing device for execution, with the redirected second portion of the real-time media application corresponding to real-time media processing and networking off-loaded from the server to the client computing device.

16 . The method according to claim 15 wherein the redirected APIs correspond to real-time media processing.

17 . The method according to claim 15 wherein the redirected APIs correspond to peer-to-peer networking with another client computing device.

18 . The method according to claim 15 further comprising intercepting the APIs of the real-time media application based on hooking, with the redirection code being injected into the real-time media application based on the intercepted APIs.

19 . The met

Assignees

• Citrix Systems Inc

Inventors

• Vysotsky Vladimir
• Giebler Todd
• Momchilov Georgy
• Page James

Classifications

• H04L65/1063

  Application servers providing network services (systems providing special services to telephonic subscribers H04M3/42) · CPC title

• H04L61/2564

  for a higher-layer protocol, e.g. for session initiation protocol [SIP] · CPC title

• G06F9/45533

  Hypervisors; Virtual machine monitors · CPC title

• H04L61/2575

  using address mapping retrieval, e.g. simple traversal of user datagram protocol through session traversal utilities for NAT [STUN] · CPC title

• H04L61/256

  NAT traversal · CPC title