Class: ManageEngine::APMConnector

Inherits:
Object
  • Object
show all
Defined in:
lib/agent/server/am_connector.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ APMConnector

Returns a new instance of APMConnector.



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# File 'lib/agent/server/am_connector.rb', line 10

def initialize 
	@obj = ManageEngine::APMObjectHolder.instance
	@pretry =0
	@gretry =0
end

Instance Method Details

#connection(url) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 100

def connection(url)

	if (@obj.config.proxyneeded)
		@obj.log.debug "[connect] Through Proxy"
		con = Net::HTTP::Proxy(@obj.config.proxy_host, @obj.config.proxy_port,@obj.config.proxy_user,@obj.config.proxy_pass).new(url.host, url.port)		
	else
		#@obj.log.info "Proxy Not Needed #{url.host} #{url.port}"
		con = Net::HTTP.new(url.host, url.port)
		#con.use_ssl=true
		#con.verify_mode=OpenSSL::SSL::VERIFY_NONE
		#@obj.log.info "connection = #{con}"
	end
	con=getScheme(con, url)
	con.open_timeout = @obj.constants.connection_open_timeout
	con.read_timeout = @obj.constants.connection_read_timeout
	con
end

#deleteAgent ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 226

def deleteAgent
	uManage = Hash.new
	uManage["agent.id"]=@obj.config.instance_id
	uManage["agent.enabled"]=false	
	@obj.config.updateAgentInfoFile uManage
	begin
		File.delete(@obj.constants.agent_conf)
	rescue Exceptione=>e
		@obj.log.logException "#{e.message}",e
	end
end

#get(uri) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 46

def get uri
	@gretry = @gretry +1
	begin
		u = url uri
		#@obj.log.info "[connector] [ GET ]  START"
		@obj.log.debug "[connector] [ GET]  : \n#{u}\n"
		req = Net::HTTP::Get.new(u.request_uri)
		resp = con.request(req)
		#@obj.log.info "[connector] [ GET ]  END"
	rescue Exception=>e
		@obj.log.logException "[connector] [ GET]  Exception while connecting server  - Data not sent ",e
		if @pretry >=@obj.config.connection_retry
			#@obj.shutdown= true
		else
			@obj.log.info "[connector] Exception found in Get request - Retrying - Count - #{@gretry}"
			return get uri
		end
	end
	@gretry = 0
end

#getScheme(con, url) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 118

def getScheme(con, url)
	if(url.to_s.start_with?("https"))
		#@obj.log.info "[connect] Secured"
		#con = Net::HTTP::Proxy(@obj.config.proxy_host, @obj.config.proxy_port,@obj.config.proxy_user,@obj.config.proxy_pass).new(url.host, url.port)		
		con.use_ssl=true
		con.verify_mode=OpenSSL::SSL::VERIFY_NONE
	end
	con
end

#manage ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 219

def manage
	uManage = Hash.new
	uManage["agent.id"]=@obj.config.instance_id
	uManage["agent.enabled"]=true	
	@obj.config.updateAgentInfoFile uManage
end

#post(uri, data) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 16

def post uri,data
	@pretry = @pretry +1
	begin

		u = url uri
		#@obj.log.info "[connector] [ POST]  START"
		@obj.log.debug "[connector] [ POST]  : #{u}\n#{data}"
		con =  connection(u)
		req = Net::HTTP::Post.new(u.request_uri,initheader = {'Content-Type' =>'application/json'})
		req.body=data.to_json
		resp = con.request(req)
		@obj.log.debug "[connector] [POST ] \n Response : #{resp} \nResponse Code : #{resp.code}\nMessage : #{resp.message}\nBody : #{resp.body}"
		rdata = responseParser resp
		@pretry = 0
		#@obj.log.info "[connector] [ POST]  END"
		return rdata
	rescue Exception=>e
		@obj.log.logException "[connector] Exception while connecting server- Data not sent \n",e
		if @pretry >=@obj.config.connection_retry
			#@obj.shutdown= true
			return nil
		else
			@obj.log.info "[connector] Exception found in Post request - Retrying - Count - #{@pretry}"
			return post uri,data
		end

	end
	@pretry = 0
end

#response_action(rCode) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 166

def response_action rCode
	case rCode
	when @obj.constants.licence_expired then
		@obj.log.info "License Expired. Going to shutdown"
		raise Exception.new("License Expired. Going to shutdown")
	when @obj.constants.licence_exceeds then
		@obj.log.info "License Exceeds. Going to shutdown"
		raise Exception.new("License Exceeds. Going to shutdown")
	when @obj.constants.delete_agent then
		@obj.log.info "Action from Server - Delete the Agent. Going to shutdown and remove the Agent"
		deleteAgent
		raise Exception.new("Action from Server - Delete the Agent. Going to shutdown and remove the Agent")
	when @obj.constants.unmanage_agent then
		@obj.log.info "Action from Server - Unmanage the Agent. Going to  Stop the DC - Disabling the Agent"
		unManage
	when @obj.constants.manage_agent then
		@obj.log.info "Action from Server - Manage the Agent. Going to Sart the DC - Enabling the Agent"
		manage	
	end
end

#responseParser(resp) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 128

def responseParser resp
	if resp.kind_of? Net::HTTPOK
		rawData = resp.body
		if rawData.length>=2
			rBody = JSON.parse(rawData)
			result = rBody["result"]
			data = rBody["data"]
			if !@obj.util.getBooleanValue result
				if data!=nil
					if data.has_key?("exception")
						raise Exception.new("Exception from server - "+data["exception"])
					end
				end

			end
			if data!=nil
			       if data.has_key?(@obj.constants.response_code)
					srCode = data[@obj.constants.response_code]
					response_action srCode
			       end
			       if data.has_key?(@obj.constants.custom_config_info)
			        config_info = data[@obj.constants.custom_config_info]
					       if data.has_key?(@obj.constants.agent_specific_info)
					         config_info = config_info.merge(data[@obj.constants.agent_specific_info])
					       end
					       update_config config_info
			       end
			end
			return data
		end
		return rawData
	else
		raise Exception.new("Http Connection Response Error #{resp.to_s}")
	end
end

#unManage ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 212

def unManage
	uManage = Hash.new
	uManage["agent.id"]=@obj.config.instance_id
	uManage["agent.enabled"]=false	
	@obj.config.updateAgentInfoFile uManage
end

#update_config(configInfo) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 187

def update_config configInfo
	existingConfigInfo = @obj.config.getAgentConfigData
	sendUpdate = "false"
	existingConfigInfo.each do|key,value|
		if key != "last.modified.time"
			newValue = configInfo[key]
			if key == "sql.capture.enabled" || key == "transaction.trace.enabled" || key == "transaction.trace.sql.parametrize"
				if newValue
					newValue = 1
				else
					newValue = 0
				end
			end
			if value != newValue
				sendUpdate = "true"
			end
		end
	end
	if sendUpdate == "true"
		@obj.log.info "Action from Server - Agent configuration updated from UI. Going to update the same in apminsight.conf file"
		@obj.log.info "config info = #{configInfo}"
		@obj.config.update_config configInfo
	end
end

#url(uri) ⇒ Object 



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# File 'lib/agent/server/am_connector.rb', line 67

def url(uri)
	ru=nil
	p="https"
	if(!@obj.config.is_secured)
		p="http"
	end			 	
	if(@obj.config.license_key != nil)
		if(!@obj.config.license_key.empty?)
			if(@obj.config.apmhost != nil && !@obj.config.apmhost.empty?)
				u = @obj.config.apmhost+uri
			else
				u = @obj.config.site24x7url+uri
			end
		else
			#empty license key - print error
			@obj.log.info "license key is present, but empty"
		end
	else
		@obj.log.info "license key is null"
		u = p+"://"+@obj.config.apmhost+":#{@obj.config.apmport}/"+uri
	end
	begin
		ru = URI.parse(u)
	rescue
		raise URI::InvalidURIError, "Invalid url '#{ru}'"
	end

	if (ru.class != URI::HTTP && ru.class != URI::HTTPS)
		raise URI::InvalidURIError, "Invalid url '#{u}'"
	end
	ru
end