Class: HaveAPI::Client::Communicator

Inherits:
Object
  • Object
show all
Defined in:
lib/haveapi/client/communicator.rb

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(url, v = nil) ⇒ Communicator

Returns a new instance of Communicator.



22
23
24
25
26
27
28
29
 
# File 'lib/haveapi/client/communicator.rb', line 22

def initialize(url, v = nil)
  @url = url
  @auth = Authentication::NoAuth.new(self, {}, {})
  @rest = RestClient::Resource.new(@url)
  @version = v
  @identity = 'haveapi-client-ruby'
  @desc = {}
end

Class Attribute Details

.auth_methods ⇒ Object (readonly)

Returns the value of attribute auth_methods.



11
12
13
 
# File 'lib/haveapi/client/communicator.rb', line 11

def auth_methods
  @auth_methods
end

Instance Attribute Details

#identity ⇒ Object

Returns the value of attribute identity.



20
21
22
 
# File 'lib/haveapi/client/communicator.rb', line 20

def identity
  @identity
end

#url ⇒ Object (readonly)

Returns the value of attribute url.



19
20
21
 
# File 'lib/haveapi/client/communicator.rb', line 19

def url
  @url
end

Class Method Details

.register_auth_method(name, klass) ⇒ Object 



13
14
15
16
 
# File 'lib/haveapi/client/communicator.rb', line 13

def register_auth_method(name, klass)
  @auth_methods ||= {}
  @auth_methods[name] = klass
end

Instance Method Details

#auth_save ⇒ Object 



41
42
43
 
# File 'lib/haveapi/client/communicator.rb', line 41

def auth_save
  @auth.save
end

#authenticate(auth_method, options = {}) ⇒ Object

Authenticate user with selected auth_method. auth_method is a name of registered authentication provider. options are specific for each authentication provider.



34
35
36
37
38
39
 
# File 'lib/haveapi/client/communicator.rb', line 34

def authenticate(auth_method, options = {})
  desc = describe_api(@version)

  @auth = self.class.auth_methods[auth_method].new(self, desc[:authentication][auth_method], options)
  @rest = @auth.resource || @rest
end

#available_versions ⇒ Object 



45
46
47
 
# File 'lib/haveapi/client/communicator.rb', line 45

def available_versions
  description_for(path_for, {describe: :versions})
end

#call(action, params, raw: false) ⇒ Object 



100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
 
# File 'lib/haveapi/client/communicator.rb', line 100

def call(action, params, raw: false)
  args = []
  input_namespace = action.namespace(:input)
  meta = nil

  if params.is_a?(Hash) && params[:meta]
    meta = params[:meta]
    params.delete(:meta)
  end

  if %w(POST PUT).include?(action.http_method)
    ns = {input_namespace => params}
    ns[:_meta] = meta if meta
    ns.update(@auth.request_payload)

    args << ns.to_json
    args << {content_type: :json, accept: :json, user_agent: @identity}.update(@auth.request_headers)

  elsif %w(GET DELETE).include?(action.http_method)
    get_params = {}

    params.each do |k, v|
      get_params["#{input_namespace}[#{k}]"] = v
    end

    meta.each do |k, v|
      get_params["_meta[#{k}]"] = v # FIXME: read _meta namespace from the description

    end if meta

    args << {params: get_params.update(@auth.request_url_params), accept: :json, user_agent: @identity}.update(@auth.request_headers)
  end

  begin
    response = parse(@rest[action.prepared_url].method(action.http_method.downcase.to_sym).call(*args))

  rescue RestClient::Forbidden
    return error('Access forbidden. Bad user name or password? Not authorized?')

  rescue => e
    return error("Fatal API error: #{e.inspect}")
  end

  if response[:status]
    if raw
      ok(JSON.pretty_generate(response[:response]))
    else
      ok(response[:response])
    end

  else
    error(response[:message], response[:errors])
  end
end

#describe_action(action) ⇒ Object 



67
68
69
 
# File 'lib/haveapi/client/communicator.rb', line 67

def describe_action(action)
  description_for(action.prepared_help)
end

#describe_api(v = nil) ⇒ Object 



49
50
51
52
53
 
# File 'lib/haveapi/client/communicator.rb', line 49

def describe_api(v=nil)
  return @desc[v] if @desc.has_key?(v)

  @desc[v] = description_for(path_for(v), v.nil? ? {describe: :default} : {})
end

#describe_resource(path) ⇒ Object 



55
56
57
58
59
60
61
62
63
64
65
 
# File 'lib/haveapi/client/communicator.rb', line 55

def describe_resource(path)
  tmp = describe_api(@version)

  path.each do |r|
    tmp = tmp[:resources][r.to_sym]

    return false unless tmp
  end

  tmp
end

#get_action(resources, action, args) ⇒ Object 



71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/haveapi/client/communicator.rb', line 71

def get_action(resources, action, args)
  tmp = describe_api(@version)

  resources.each do |r|
    tmp = tmp[:resources][r.to_sym]

    return false unless tmp
  end

  a = tmp[:actions][action]

  unless a # search in aliases
     tmp[:actions].each do |_, v|
      if v[:aliases].include?(action.to_s)
        a = v
        break
      end
    end
  end

  if a
    obj = Action.new(self, action, a, args)
    obj.resource_path = resources
    obj
  else
    false
  end
end