Description

This PR allows the server to handle both stdout and stderr from an agent. The primary change is that result files will be written as a dictionary, i.e., { stdout: '', stderr: ''}. Thus, when different readers request result output (e.g., the API, reports, or plugins) they will now receive a dictionary. Core CALDERA functionality has been updated in this PR to account for these changes (e.g., reports will generate properly, the UI will display results properly), but any non-CALDERA users of APIs/reports or any custom plugins may be effected.

The PR accounts for old result files, and constructs a dictionary with the old results as "stdout".

Any agents that only send output will have their data stored in stdout, regardless of the origination. An associated PR for Sandcat will be made in conjunction to this one which will return both stdout and stderr from commands. However, stderr from other agents will appear as stdout. Note that the link result itself is NOT effected, and will still show an error even on other agents.

Type of change

• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Tested with Sandcat/Manx, old result files, and new result files. Generated every type of report. Tested with stdout, stderr, and both. Automated test suites run successfully (with updates to account for the dict).

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• [N/A] I have made corresponding changes to the documentation - future ticket
• [N/A] I have added tests that prove my fix is effective or that my feature works - future ticket