Class: ActiveDevice::Bot

Inherits:
Object
  • Object
show all
Defined in:
lib/active_device/bot.rb

Constant Summary collapse

PREFIX = 
{
      # Common prefixes (mozilla not included)
      :common => %w(opera),
      # Mobile browser prefixes
      :embedded => %w(blackberry docomo waptiger winwap),
      # Textmode browser prefixes
      :text => %w(elinks lynx retawq w3m/) << "links ",
      # Uncommon browser prefixes
      :rare => %w(advanced amaya amiga aplix cyberdog dillo galaxy genius
        hotjava ibm ibrowse icab ice klondike ncsa netsurf openwave
        reqwirelessweb sunrise worldwideweb),
      # These usually are not prefixes in their normal UA string
      :odd => %w(android avant firefox k-meleon konqueror netscape safari
seamonkey) }
ID = 
{
      :mobile => %w(^sec blackberry midp mmp netfront opera safari semc
sonyericsson symbian up\\.browser up\\.link) << "windows ce",
      :moz_compatible => %w(amigavoyager antfresco aol applewebkit avant
blackberry elaine gecko ibrowse icab khtml konqueror msie netfront netp
netscape omniweb opera teleca voyager),
      :moz_platform => %w(amiga beos brew bsd danger dreamcast iphone ipod linux
mac os/2 palm pda playstation ps2 ps3 psp risc star-blade sunos syllable
symbian win x11 zx),
      :bot => %w(<a <script bot butterfly checker crawl daumoa del\\.icio\\.us
depspid flycast heritrix httrack indexing ktxn larbin links-sql
me\\.dium miro mozshot nutch odp-entries oneriot pbwf planetwide slurp
spider survey thunderbird vermut) << "black widow" }
REGEXP = 
{
:prefix => /^#{PREFIX.values.flatten! * "|^"}/,
:mobile => /#{ID[:mobile] * "|"}/,
:moz_compatible => /#{ID[:moz_compatible] * "|"}/,
:moz_platform => /#{ID[:moz_platform] * "|"}/,
:bot => /#{ID[:bot] * "|"}/ }

Instance Method Summary collapse

Instance Method Details

#browser?(user_agent) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_device/bot.rb', line 43

def browser?(user_agent)
  # Empty string might be an anonymized browser
  return true if user_agent.nil? || user_agent =~ /^\s*$/
  ua_lc = user_agent.downcase
  if ua_lc[0,7] == "mozilla"
    is_browser = ua_lc =~ REGEXP[:moz_compatible] || ua_lc =~ REGEXP[:moz_platform]
  else
    is_browser = ua_lc =~ REGEXP[:prefix] || ua_lc =~ REGEXP[:mobile]
  end
  is_browser = ua_lc[REGEXP[:bot]].nil? if is_browser
  return is_browser
end

#robot?(user_agent) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/active_device/bot.rb', line 39

def robot?(user_agent)
  !browser?(user_agent)
end