OPERATIONS TO AVOID WRAPPED MOBILE APPLICATION OPERATIONAL ERRORS DUE TO INTERFERENCE FROM WRAPPER LOGIC COMPONENTS

• US 20170039130A1
• Filed: 08/04/2015
• Published: 02/09/2017
• Est. Priority Date: 08/04/2015
• Status: Active Grant

• Current Assignee: CA, Inc. (d/b/a CA Technologies) (Broadcom, Inc.)
• Original Assignee: CA, Inc. (d/b/a CA Technologies) (Broadcom, Inc.)
• Inventors: NANDAKUMAR, VIKRANT, GANDA, MADHUSUDHAN, MURTHY, VARDHINEEDI SATYANARAYANA, PINNINTI, HEMANTH KUMAR
• Granted Patent: US 10,078,580 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/3466 Performance evaluation by tracing or monitoring
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57
• CPC Class Codes: G06F 9/44526 Plug-ins; Add-ons

Abstract

A method on a processor of an application wrapper computer includes, for each of a plurality of features of an application program in an application package, associating a wrapper component with the feature, identifying a location of the feature in the application program, and identifying from a portion of the application program at the location whether the feature will have an operational error during execution responsive to a request from the feature for access to a resource of a user device being blocked by the wrapper component. For each of the plurality of features, the method further responds to an operational error being identified by identifying content of an acceptable response to the request to avoid the operational error, and modifying the wrapper component to provide the content of the acceptable response to the request when the wrapper component is blocking the request from accessing the resource.

Claims

1. A method comprising:

performing operations as follows on a processor of an application wrapper computer;

for each of a plurality of features of an application program in an application package, performing;

associating one of a plurality of wrapper logic components in a set with the feature;

identifying a location of the feature in the application program;

identifying from a portion of the application program at the location whether the feature will have an operational error during execution of the portion of the application program by a user device responsive to a request from the feature for access to a resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource; and

responsive to an operational error being identified,

identifying content of an acceptable response to the request from the feature to avoid the operational error, and

modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device; and

combining the wrapper logic components of the set and the application program to form a wrapped application package.

2. The method of claim 1, the operations further comprising:

decompiling executable code of the application package to provide a decompiled application package;

disassembling the decompiled application package to provide disassembled code;

wherein for each of the features,

the identifying a location of the feature in the application program, comprises identifying a location of the feature in the disassembled code;

the identifying from a portion of the application program at the location of the feature in the application program whether the feature will have an operational error, comprises

identifying from a portion of the disassembled code at the location of the feature whether the feature will have an operational error during execution of the portion of the disassembled code by the user device responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource.

3. The method of claim 2, wherein the wrapper logic components of the set and the application program to form the wrapped application package, comprises:

generating modified disassembled code by, for each of the features, inserting an operational hook at the location in the disassembled code where the feature was identified, the operational hook calling one of the wrapper logic components of the set that is configured to control access by the feature to a resource of the user device;

assembling the modified disassembled code to provide modified assembled code; and

combining the wrapper logic components of the set with the modified assembled code to form the wrapped application package comprising executable code from the modified assembled code and executable code from the wrapper logic components of the set that control calls by the executable code from the modified assembled code to access resources of the user device.

4. The method of claim 1, wherein the identifying from the portion of the application program at the location whether the feature will have an operational error during execution of the portion of the application program by the user device responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource, comprises:

identifying whether the portion of the application program at the location of the feature will hang without timeout responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource.

5. The method of claim 1, wherein the identifying from the portion of the application program at the location whether the feature will have an operational error during execution of the portion of the application program by the user device responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource, comprises:

identifying whether the portion of the application program at the location of the feature will generate a runtime error during mathematical operation on a value arising responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource.

6. The method of claim 1, wherein the identifying from the portion of the application program at the location whether the feature will have an operational error during execution of the portion of the application program by the user device responsive to the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource, comprises:

identifying whether a conditional branch in the portion of the application program at the location of the feature is affected by the request from the feature for access to the resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource.

7. The method of claim 1, wherein the identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying a remedial action from among a repository of remedial actions based on the feature and the one of the plurality of wrapper logic components.

8. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default location data to be provided as a response to the request being to access location data from a GPS resource of the user device.

9. The method of claim 8, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default location data to the feature as a response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device.

10. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default video data stream to be provided as a response to the request being to access video from a camera resource of the user device.

11. The method of claim 10, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default video data stream to the feature as a response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing video from the camera resource of the user device.

12. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default picture data to be provided as a response to the request being to access a camera resource of the user device.

13. The method of claim 12, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default picture data to the feature as a response to the request when the one of the plurality of wrapper logic components is blocking the request from accessing the camera of the user device.

14. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default audio data to be provided as a response to the request being to access a microphone resource of the user device.

15. The method of claim 14, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default audio data to the feature as a response to the request when the one of the plurality of wrapper logic components is blocking the request from accessing the microphone resource of the user device.

16. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default HTTP response object to be provided as a response to the request being to access the Internet through a network resource of the user device.

17. The method of claim 16, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default HTTP response object to the feature as a response to the request when the one of the plurality of wrapper logic components is blocking the request from accessing the Internet through the network resource of the user device.

18. The method of claim 1, wherein identifying content of an acceptable response to the request from the feature to avoid the operational error, comprises:

identifying default contact information to be provided as a response to the request being to access a repository of contact information of the user device.

19. The method of claim 18, wherein the modifying the one of the plurality of wrapper logic components to provide the content of the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device, comprises:

configuring the one of the plurality of wrapper logic components to provide the default contact information to the feature as a response to the request when the one of the plurality of wrapper logic components is blocking the request from accessing the repository of contact information of the user device.

20. A method comprising:

performing operations as follows on a processor of an application wrapper computer;

decompiling executable code of an application package containing an application program to provide a decompiled application package;

identifying features of the application program based on content of the decompiled application package;

disassembling the decompiled application package to provide disassembled code;

for each of the features of the application program, performing;

associating one of a plurality of wrapper logic components in a set with the feature;

identifying a location of the feature in the disassembled code;

identifying from a portion of the disassembled code at the location of the feature in the disassembled code whether the feature will have an operational error during execution of the portion of the disassembled code by a user device responsive to a request from the feature for access to a resource of the user device being blocked by the one of the plurality of wrapper logic components when executed by the user device to control access by the feature to the resource; and

responsive to an operational error being identified,

identifying an acceptable response to the request from the feature to avoid the operational error, and

modifying the one of the plurality of wrapper logic components to provide the acceptable response to the request from the feature when the one of the plurality of wrapper logic components is blocking the request from accessing the resource of the user device;

generating modified disassembled code by, for each of the features, inserting an operational hook at the location in the disassembled code where the feature was identified, the operational hook calling one of the wrapper logic components of the set that is configured to control access by the feature to a resource of the user device;

assembling the modified disassembled code to provide modified assembled code; and

combining the wrapper logic components of the set with the modified assembled code to form a wrapped application package comprising executable code from the modified assembled code and executable code from the wrapper logic components of the set that control calls by the executable code from the modified assembled code to access resources of the user device.