Class: Lita::Handlers::Stackstorm

Inherits:
Handler
  • Object
show all
Defined in:
lib/lita/handlers/stackstorm.rb

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.expires ⇒ Object

Returns the value of attribute expires.



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# File 'lib/lita/handlers/stackstorm.rb', line 29

def expires
  @expires
end

.token ⇒ Object

Returns the value of attribute token.



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# File 'lib/lita/handlers/stackstorm.rb', line 29

def token
  @token
end

Class Method Details

.config(config) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 32

def self.config(config)
  self.token = nil
  self.expires = nil
end

Instance Method Details

#auth_builder ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 91

def auth_builder
  if Integer(config.auth_port) == 443 and config.url.start_with?('https')
    "#{config.url}/auth"
  else
    "#{config.url}:#{config.auth_port}/v1"
  end
end

#authenticate ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 107

def authenticate
  resp = http.post("#{auth_builder()}/tokens") do |req|
    req.body = {}
    req.headers['Authorization'] = http.set_authorization_header(:basic_auth, config.username, config.password)
  end
  self.class.token = JSON.parse(resp.body)['token']
  self.class.expires = JSON.parse(resp.body)['expiry']
  resp
end

#call_alias(msg) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 117

def call_alias(msg)
  if expired
    authenticate
  end
  command = msg.matches.flatten.first
  found = ""
  redis.scan_each do |a|
    possible = /#{a}/.match(command)
    if not possible.nil?
      found = a
      break
    end
  end

  jobject = JSON.parse(redis.get(found))
  payload = {
    name: jobject['object']['name'],
    format: jobject['format'],
    command: command,
    user: msg.user.name,
    source_channel: 'chatops',
    notification_channel: 'lita'
  }
  s = make_post_request("/aliasexecution", payload)
  j = JSON.parse(s.body)
  if s.success?
    msg.reply "Got it! Details available at #{config.url}/#/history/#{j['execution']['id']}/general"
  else
    msg.reply "Execution failed with message: #{j['faultstring']}"
  end
end

#direct_post(channel, message, user) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 42

def direct_post(channel, message, user)
  case robot.config.robot.adapter
  when :slack
    payload = {
      action: "slack.chat.postMessage",
      parameters: {
        username: user,
        text: message,
        icon_emoji: config.emoji_icon,
        channel: channel
      }
    }
    make_post_request("/executions", payload)
  else
    target = Lita::Source.new(user: user, room: Lita::Room.fuzzy_find(channel))
    robot.send_message(target, message)
  end
end

#expired ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 185

def expired
  self.class.token.nil? || Time.now >= Time.parse(self.class.expires)
end

#headers ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 207

def headers
  headers = {}
  headers['Content-Type'] = 'application/json'
  headers['X-Auth-Token'] = "#{self.class.token}"
  headers
end

#list(msg) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 149

def list(msg)
  if expired
    authenticate
  end
  redis.keys.each {|k| redis.del k }
  s = make_request("/actionalias", "")
  if JSON.parse(s.body).empty?
    msg.reply "No Action Aliases Registered"
  else
    j = JSON.parse(s.body)
    a = ""
    extra_params = '(\\s+(\\S+)\\s*=("([\\s\\S]*?)"|\'([\\s\\S]*?)\'|({[\\s\\S]*?})|(\\S+))\\s*)*'
    j.take_while{|i| i['enabled'] }.each do |command|
      command['formats'].each do |format|
        f = format.gsub(/(\s*){{\s*\S+\s*=\s*(?:({.+?}|.+?))\s*}}(\s*)/, '\\s*([\\S]+)?\\s*')
        f = f.gsub(/\s*{{.+?}}\s*/, '\\s*([\\S]+?)\\s*')
        f = "^\\s*#{f}#{extra_params}\\s*$"
        redis.set(f, {format: format, object: command}.to_json)
        a+= "#{format} -> #{command['description']}\n"
      end
    end
    msg.reply a
  end
end

#login(msg) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 174

def (msg)
  http_resp = authenticate
  if ![200, 201, 280].index(http_resp.status).nil?
    msg.reply "login successful\ntoken: #{self.class.token}"
  elsif http_resp.status == 500
    msg.reply "#{http_resp.status}: login failed!!"
  else
    msg.reply "#{http_resp.status}: login failed!!"
  end
end

#make_post_request(path, body) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 197

def make_post_request(path, body)
  resp = http.post("#{url_builder()}#{path}") do |req|
    req.body = {}
    req.headers = headers
    req.body = body.to_json
  end
  resp
end

#make_request(path, body) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 189

def make_request(path, body)
  resp = http.get("#{url_builder()}#{path}") do |req|
    req.headers = headers
    req.body = body.to_json if not body.empty?
  end
  resp
end

#stream_listen(payload) ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 61

def stream_listen(payload)
  if expired
    authenticate
  end
  uri = URI("#{url_builder()}/stream")
  Thread.new {
    Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
      request = Net::HTTP::Get.new uri
      request['X-Auth-Token'] = headers()['X-Auth-Token']
      request['Content-Type'] = 'application/x-yaml'
      http.request request do |response|
        io = StringIO.new
        response.read_body do |chunk|
          c = chunk.strip
          if c.length > 0
            io.write chunk
            event = YAML.load(io.string)
            if event['event'] =~ /st2\.announcement/
              direct_post(event['data']['payload']['channel'],
                          event['data']['payload']['message'],
                          event['data']['payload']['user'])
            end
            io.reopen("")
          end
        end
      end
    end
  }
end

#url_builder ⇒ Object 



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# File 'lib/lita/handlers/stackstorm.rb', line 99

def url_builder
  if Integer(config.execution_port) == 443 and config.url.start_with?('https')
    "#{config.url}/api"
  else
    "#{config.url}:#{config.execution_port}/v1"
  end
end