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