function CanaryStartup()

in ransomware/artifact.lua [2247:2329]
55 lines of code
12 McCabe index (conditional complexity)

function CanaryStartup()

    utils.DebugLog('Canary Startup Called')

    local product = utils.GetProduct()
    if product ~= 'elastic' then
        utils.DebugLog('Not initiating canary startup (non-elastic endpoint)')
        return
    end

    
    local incompatible = utils.CurrentVersionLessThan('8.6.0')
    if incompatible then
        utils.DebugLog('Not initiating canary startup (version < 8.6.0)')
        return
    end

    utils.DebugLog('Elastic endpoint version is compatible with canary files!')
    globals.canaryCompatible = true

    
    CanariesCleanup(globals.namespace.diagnosticMode)

    
    if (false == CanariesEnabled()) then
        return
    end

    
    for _, namespace in pairs(globals.namespaces) do
        globals.SwitchNamespace(namespace)

        utils.DebugLog('build the list of canary files to be created')
        local canaries = globals.BuildCanaries()
        if next(canaries) == nil then
            utils.DebugLog('failed to build the list of canary files')
            return
        end

        
        local canaryPlanted = false
        utils.DebugLog('planting canary files')
        for _, canary in ipairs(canaries) do

            
            
            
            
            
            
            local canaryStatus =
                PlantCanary(canary.fullpath, canary.content, canary.hidden, canary.force, canary.system)
            if canaryStatus == nil then
                utils.DebugLog('failed to plant canary: ' .. canary.fullpath)
            else
                
                
                if not utils.TableHasValue(globals.namespace.canaryDirNames, canary.dirname) then
                    table.insert(globals.namespace.canaryDirNames, canary.dirname)
                end
                if not utils.TableHasValue(globals.namespace.canaryFileNames, canary.filename) then
                    table.insert(globals.namespace.canaryFileNames, canary.filename)
                end
                canaryPlanted = true
            end
        end

        
        if canaryPlanted == false then
            utils.DebugLog('Failed to drop any canaries!')
            return
        end

        
        if globals.namespace.diagnosticMode then
            globals.diagnosticCanariesDropped = true
        else
            globals.productionCanariesDropped = true
        end
    end

    return true
end