Authentication security model for a content management system

1. A computer-implemented method comprising:

storing, by a content management system, credentials for an external user account of a third-party source that is external to the content management system, wherein the credentials are required to display third-party content embedded into a content item stored on the content management system, the credentials are stored in association with the content item;

receiving, from a client device, a request to receive the content item that is associated with a first domain of the content management system;

receiving, from the client device, a request for third-party code based on a portion of the content item, the third-party code associated with a second domain of the content management system;

providing the client device with the third-party code associated with the second domain of the content management system, wherein the third-party code references data associated with the third-party content;

receiving, from the client device, a client request for the data associated with the third-party content embedded into the content item, the data stored at the third-party source;

retrieving the credentials for the external user account from the content management system;

sending, to the third-party source, a proxy-request for the data associated with the external user account, wherein the proxy-request comprises the credentials and parameters associated with the client request;

receiving, from the third-party source, the data associated with the third-party content embedded into the content item, based on confirmation of the credentials of the external user account; and

sending, to the client device, the data for the embedded content to be displayed with the content item.

2. The computer-implemented method of claim 1 , wherein the client request is associated with a first user of the content management system and the external user account is associated with a second user of the content management system.

3. The computer-implemented method of claim 1 , further comprising participating in a 3-legged OAuth registration process to obtain the credentials.

4. The computer-implemented method of claim 1 , further comprising:

sending, to the client device, the content item and the third-party code stored by the content management system;

receiving, from the client device, data associated with the third-party code;

storing the data as metadata associated with the content item; and

sending a notification regarding the data to a second client device with access to the content item.

5. The computer-implemented method of claim 4 , wherein a portion of the content item that references the data comprises an iframe.

6. The computer-implemented method of claim 1 , wherein at least one of the parameters are provided by the client request.

7. The computer-implemented method of claim 1 , wherein the content item is a collaboration document.

8. The computer-implemented method of claim 1 , wherein the data associated with the external user account comprises at least one of a picture, a video, a document, an audio file or a widget.

9. The computer-implemented method of claim 1 , wherein a triggering action links a user account associated with the content item in the content management system with the user account of the third-party source.

10. The computer-implemented method of claim 1 , wherein the content item is managed by the content management system with the external user account.

11. A non-transitory computer readable medium comprising instructions, the instructions, when executed by a computing system, cause the computing system to:

obtain, by a content management system, credentials for an external user account of a third-party source that is external to the content management system, wherein the credentials are required to display third-party content embedded into a content item stored on the content management system, the credentials stored in association with the content item;

receive, from a client device, a request to receive the content item that is associated with a first domain of the content management system;

receive, from the client device, a request for third-party code based on a portion of the content item, the third-party code associated with a second domain of the content management system;

provide the client device with the third-party code associated with the second domain of the content management system, wherein the third-party code references data associated with the third-party content;

receive, from the client device, a client request for the data associated with the third-party content embedded into the content item, the data stored at the third-party source;

send, to the third-party source, a proxy-request for the data associated with the external user account, wherein the proxy-request comprises the credentials;

receive, from the third-party source, the data associated with the third-party content embedded into the content item based on confirmation of the credentials of the external user account; and

forward, to the client device, the data for the embedded content to be displayed with the content item.

12. The non-transitory computer readable medium of claim 11 , wherein the instructions further cause the computing system to participate in an authentication process to obtain the credentials.

13. The non-transitory computer readable medium of claim 12 , wherein the authentication process is a 3-legged OAuth registration process.

14. The non-transitory computer readable medium of claim 12 , wherein the client request is associated with a first user of the content management system and the external user account is associated with a second user of the content management system.

15. The non-transitory computer readable medium of claim 14 , wherein the authentication process included participation from the second user of the content management system.

16. A system comprising:

one or more processors; and

a non-transitory computer-readable medium storing instructions that, when executed by the one or more processors, cause the one or more processors to:

obtain, by a content management system, credentials for an external user account of a third-party source that is external to the content management system, wherein the credentials are required to display third-party content embedded into a content item are stored on the content management system;

receive, from a client device, a request to receive the content item that is associated with a first domain of the content management system;

receive, from the client device, a request for third-party code based on a portion of the content item, the third-party code associated with a second domain of the content management system;

provide the client device with the third-party code associated with the second domain of the content management system, wherein the third-party code references data associated with the third-party content;

receive, from the client device, a client request for the data associated with the third-party content embedded into the content item, the data stored at the third-party source;

send, to the third-party source, a proxy-request for the data associated with the external user account, wherein the proxy-request comprises the credentials;

receive, from the third-party source, the data associated with the third-party content embedded into the content item based on confirmation of the credentials of the external user account; and

send, to the client device, the data for the embedded content to be displayed with the content item.

17. The system of claim 16 , wherein the instructions further cause the one or more processors to participate in an authentication process to obtain the credentials.

18. The system of claim 17 , wherein the authentication process is a 3-legged OAuth registration process.

19. The system of claim 17 , wherein the client request is associated with a first user of the content management system and the external user account of the third-party source is associated with a second user of the content management system.

20. The system of claim 19 , wherein the authentication process included participation from the second user of the content management system.

21. The system of claim 19 , wherein the content item is a collaboration document.