Class: Meshchat::Node

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/meshchat/models/node.rb

Constant Summary collapse

IPV4_WITH_PORT = 
/((?:(?:^|\.)(?:\d|[1-9]\d|1\d{2}|2[0-4]\d|25[0-5])){4})(:\d*)?/
DOMAIN_WITH_PORT =

rubular.com/r/WYT09ptct3

/(https?:\/\/)?([\da-z\.-]+)\.?([a-z\.]{2,6})([\/\w \.-]*)*[^\/](:\d*)?/

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.as_json ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 37

def as_json
  # must also include ourselves
  # so that we can pass our own public key
  # to those who don't have it
  others = all.map(&:as_json)
  me = APP_CONFIG.user.identity_as_json
  others << me
end

.as_sha512 ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 32

def as_sha512
  digest = Digest::SHA512.new
  digest.hexdigest sha_preimage
end

.diff(theirs) ⇒ Array<-,+>

Returns nodes only we have, and nodes only they have.

Parameters:

  • theirs (Array) —

    array of hashes representing node entries

Returns:

  • (Array<-,+>) —

    nodes only we have, and nodes only they have



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# File 'lib/meshchat/models/node.rb', line 61

def diff(theirs)
  ours = as_json
  we_only_have = ours - theirs
  they_only_have = theirs - ours

  [we_only_have, they_only_have]
end

.for(location: nil, uid: nil, node: nil) ⇒ Node

Try to find the node, given a location, or uid

TODO: do we want to also be able to find by relay address?

- this would be non-unique
- maybe finding should only happen via UID

Parameters:

  • location (String) (defaults to: nil) —

    • the local network address

  • uid (String) (defaults to: nil) —

    • the node’s UID

  • node (Node) (defaults to: nil) —

    • the node

Returns:



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# File 'lib/meshchat/models/node.rb', line 88

def for(location: nil, uid: nil, node: nil)
  unless node
    node = Node.find_by_location_on_network(location) if location
    node = Node.find_by_uid(uid) if uid && !node
  end

  unless node && node.valid?
    msg =  I18n.t('node.not_found', name: location || uid || '')
    return Display.alert msg
  end

  node
end

.from_json(json) ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 46

def from_json(json)
  new(
    alias_name: json['alias'],
    location_on_network: json['location'],
    uid: json['uid'],
    public_key: json['publickey']
  )
end

.import_from_file(filename) ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 69

def import_from_file(filename)
  f = File.read(filename)
  hash = JSON.parse(f)
  n = from_json(hash)
  n.save
  n
rescue => e
  Display.alert e.message
end

.public_key_from_uid(uid) ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 55

def public_key_from_uid(uid)
  find_by_uid(uid).try(:public_key)
end

.sha_preimage ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 28

def sha_preimage
  all.map(&:public_key).sort.join(',')
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 103

def ==(other)
  result = false

  if other.is_a?(Hash)
    result = as_json.values_at(*other.keys) == other.values
  end

  result || super
end

#as_info ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 136

def as_info
  "#{alias_name}@#{location}"
end

#as_json ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 127

def as_json
  {
    'alias' => alias_name,
    'location' => location_on_network,
    'uid' => uid,
    'publickey' => public_key
  }
end

#location ⇒ Object 



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# File 'lib/meshchat/models/node.rb', line 118

def location
  return location_of_relay if on_relay?
  location_on_network
end

#location_is_web_socket? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/meshchat/models/node.rb', line 123

def location_is_web_socket?
  location.match(/wss?/).present?
end

#online ⇒ Object Also known as: online? 



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# File 'lib/meshchat/models/node.rb', line 113

def online
  on_relay? || on_local_network?
end