Class: HelperFunctions

Inherits:
Object
  • Object
show all
Includes:
ERB::Util
Defined in:
lib/dashing_api/helperFunctions.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ HelperFunctions

Returns a new instance of HelperFunctions.



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# File 'lib/dashing_api/helperFunctions.rb', line 56

def initialize
	@newDashboardTemplate = newDashboardTemplate
	@addDeleteTileTemplate = addDeleteTileTemplate
end

Instance Method Details

#addTile(dashboard, body, directory) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 169

def addTile(dashboard, body, directory)
    dashboard = directory+'/dashboards/'+dashboard+'.erb'
    finalElement = Array.new
    if checkArray(body)
        finalElement = getHtmlElements(dashboard, body['tiles']['hosts'])

        for i in 0..body["tiles"]["hosts"].length-1
            host = body["tiles"]["hosts"][i]
            widget = body["tiles"]["widgets"][i]
            title = body["tiles"]["titles"][i]
            url = body["tiles"]["urls"][i]

            tileElement = ["<li data-row=\"1\"  data-col=\"1\" data-sizex=\"2\" data-sizey=\"2\" onClick=\"myFunction()\">
                            <div data-id=\"", host,"\" data-view=\"", widget,"\" data-unordered=\"true\" data-title=\"", title,"\" data-url=\"", url, "\" data-bind-style=\"status\" style=\"style\"></div>
                           </li>"  ].join
            finalElement.push(tileElement)
        end
        save(dashboard, finalElement, @addDeleteTileTemplate)
        return true
    else
        return false
    end
end

#checkArray(body) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 111

def checkArray(body)
    hostLen = body["tiles"]["hosts"].length
 	widgetLen = body["tiles"]["widgets"].length
 	titleLen = body["tiles"]["titles"].length
 	
 	if hostLen.equal?(widgetLen) and widgetLen.equal?(titleLen)
 	    return true
 	else
 	    return false
 	end
end

#checkAuthToken(body, token) ⇒ Object

Check if the auth_token is a valid



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# File 'lib/dashing_api/helperFunctions.rb', line 62

def checkAuthToken(body, token)
	auth_token = body["auth_token"]
	if token == auth_token
   	    return true
	else
   	    return false
	end
end

#createDashboard(body, dashboard, directory) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 123

def createDashboard(body, dashboard, directory)
    dashboard = directory+'/dashboards/'+dashboard+'.erb'
    if checkArray(body) 
	    save(dashboard, body, @newDashboardTemplate)
	    return true
	else
	    return false
	end
end

#dashboardExists(dashboardName, directory) ⇒ Object

Check if the dashboard exists within the dashboard folder



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# File 'lib/dashing_api/helperFunctions.rb', line 92

def dashboardExists(dashboardName, directory)
	if File.exist?(directory+'/dashboards/'+dashboardName+'.erb')
   	    return true
	else
   	    return false
	end
end

#deleteTile(dashboard, hosts, directory) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 150

def deleteTile(dashboard, hosts, directory)
    liElements = Array.new
    finalElement = Array.new
    dashboard = directory+'/dashboards/'+dashboard+'.erb'

    doc = Nokogiri::HTML(open(dashboard))
    liElements = doc.search('div > ul > li')

    liElements.each do |item|
        element = item.to_s
        if hosts.any? { |w| element[w] }
            next
        else
            finalElement.push(element)
        end
    end
    save(dashboard, finalElement, @addDeleteTileTemplate)
end

#getHost ⇒ Object

Get the hostname



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# File 'lib/dashing_api/helperFunctions.rb', line 266

def getHost()
    return Socket.gethostname
end

#getHtmlElements(dashboard, hosts) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 133

def getHtmlElements(dashboard, hosts)
    liElements = Array.new
    finalElement = Array.new
    doc = Nokogiri::HTML(open(dashboard))
    liElements = doc.search('div > ul > li')

    liElements.each do |item|
        element = item.to_s
        if hosts.any? { |w| element[w] }
            next
        else
            finalElement.push(element)
        end
    end
    return finalElement
end

#pingHosts(dashboard, body, directory) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 207

def pingHosts(dashboard, body, directory)
    upArr = Array.new
    downArr = Array.new

    if uniq?(body["tiles"]["hosts"])
        body["tiles"]["hosts"].each do |host|
            if up?(host)
                upArr.push(host)
            else
                downArr.push(host)
            end
        end

        upOutput = tileExists(dashboard, upArr, directory)

        if !upOutput.empty?
            hosts = Array.new
            titles = Array.new
            widgets = Array.new
            urls = Array.new

            for i in 0..upOutput.length-1
                host = upOutput[i]
                for j in 0..body["tiles"]["hosts"].length-1
                        checkhost = body["tiles"]["hosts"][j]
                        if checkhost == host
                            hosts.push(host)
                            widgets.push(body["tiles"]["widgets"][j])
                            titles.push(body["tiles"]["titles"][j])
                            urls.push(body["tiles"]["urls"][j])
                        else
                            next
                        end
                end
            end

            jsonArray = { :tiles => { :hosts => hosts, :widgets => widgets, :titles => titles, :urls => urls} }.to_json
            objArray = JSON.parse(jsonArray)

            addTile(dashboard, objArray, directory)
        end

        downOutput = tileExists(dashboard, downArr, directory)

        if !downOutput.empty?
            tileToRemove = downArr - downOutput
        else
            tileToRemove = downArr
        end

        deleteTile(dashboard, tileToRemove, directory)
        return true
    else
        return false
    end
end

#render(body, template) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 100

def render(body, template)
    ERB.new(template).result(binding)
end

#save(file, body, template) ⇒ Object 



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# File 'lib/dashing_api/helperFunctions.rb', line 104

def save(file, body, template)
	File.new(file, "w")
 	File.open(file, "w+") do |f|
        f.write(render(body, template))
 	end
end

#tileExists(dashboard, hosts, directory) ⇒ Object

Check if a nagios host/hosts exists on a dashboard



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# File 'lib/dashing_api/helperFunctions.rb', line 72

def tileExists(dashboard, hosts, directory)
	if hosts.kind_of?(Array)
   	    arrHosts = hosts
	else
   	    arrHosts = hosts.split(",")
	end

	doNotExist = Array.new
	for hosts in arrHosts
	    host = "data-id=\""+hosts+"\""
   	    if File.foreach(directory+'/dashboards/'+dashboard+'.erb').any?{ |l| l[host]  }
            next
   	    else 
      	doNotExist.push(hosts)
   	    end
	end
	return doNotExist
end

#uniq?(array) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dashing_api/helperFunctions.rb', line 199

def uniq?(array)
    if array.length == array.uniq.length
        return true
    else
        return false
    end
end

#up?(host) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dashing_api/helperFunctions.rb', line 193

def up?(host)
    check = Net::Ping::External.new(host)
    return check.ping?
end