old_contents: """
  Module for adding new entries
  """
  import re
  import api
  import conf
  
  
  def add(target_url, title=None, star=False, read=False):
      conf.load()
  
      valid_url = False
      if not re.compile("(?i)https?:\\/\\/.+").match(target_url):
          for protocol in "https://", "http://":
              if api.is_valid_url("{0}{1}".format(protocol, target_url)):
                  target_url = "{0}{1}".format(protocol, target_url)
                  valid_url = True
                  break
      else:
          valid_url = api.is_valid_url(target_url)
  
      if not valid_url:
          print("Error: Invalid url to add.")
          print()
          exit(-1)
  
      try:
          request = api.api_add_entry(target_url, title, star, read)
          if(request.hasError()):
              print("Error: {0} - {1}".format(request.error_text,
                                              request.error_description))
              exit(-1)
          else:
              print("Entry successfully added")
              exit(0)
      except api.OAuthException as e:
          print("Error: {0}".format(e.text))
          print()
          exit(-1)
  
new_contents: """
  Module for adding new entries
  """
  import re
  import api
  import conf
  import json
  
  
  def add(target_url, title=None, star=False, read=False):
      conf.load()
  
      valid_url = False
      if not re.compile("(?i)https?:\\/\\/.+").match(target_url):
          for protocol in "https://", "http://":
              if api.is_valid_url("{0}{1}".format(protocol, target_url)):
                  target_url = "{0}{1}".format(protocol, target_url)
                  valid_url = True
                  break
      else:
          valid_url = api.is_valid_url(target_url)
  
      if not valid_url:
          print("Error: Invalid url to add.")
          print()
          exit(-1)
  
      try:
          request = api.api_entry_exists(target_url)
          if(request.hasError()):
              print("Error: {0} - {1}".format(request.error_text,
                                              request.error_description))
              exit(-1)
          response = json.loads(request.response)
          print(response['exists'])
          if response['exists'] == True:
              print("The url was already saved.")
              exit(0)
  
      except api.OAuthException as e:
          print("Error: {0}".format(e.text))
          print()
          exit(-1)
  
      try:
          request = api.api_add_entry(target_url, title, star, read)
          if(request.hasError()):
              print("Error: {0} - {1}".format(request.error_text,
                                              request.error_description))
              exit(-1)
          else:
              print("Entry successfully added")
              exit(0)
      except api.OAuthException as e:
          print("Error: {0}".format(e.text))
          print()
          exit(-1)
  
subject: Check if an anetry already exists before adding it