Class: Cameleon::Action

Inherits:
Object
  • Object
show all
Defined in:
lib/cameleon/action.rb

Instance Method Summary collapse

Instance Method Details

#find_default_file ⇒ Object 



13
14
15
 
# File 'lib/cameleon/action.rb', line 13

def find_default_file
  Dir.entries(@base_path).find { |f| f =~ /^default\./ }
end

#handle(req) ⇒ Object 



21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
 
# File 'lib/cameleon/action.rb', line 21

def handle(req)
  @base_path = File.join("response", req.path)
  if req.path == "/"
    @base_path += "_root"
  end
  @params = req.params
  @body = req.body.read
  if ["POST", "PUT"].include? req.request_method
    begin
      validate_request_body
    rescue Cameleon::ValidationError => e
      return [400, {}, [e.message]]
    end
  end
  renderer = nil
  if !File.exists?(@base_path)
    if placeholder_dir = on_placeholder_dir("response", req.path)
      @base_path = placeholder_dir
    else
      return [404, {}, ["dir not found: #{@base_path}"]]
    end
  end
  if File.exists?(switch_filepath)
    renderer = Renderer.run_switch(@base_path, req, switch_filepath)
  else
    renderer = Renderer.render_file(@base_path, req)
  end
  renderer.build_response
end

#on_placeholder_dir(base_dir_path, target_dir_path, found = false) ⇒ Object 



51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'lib/cameleon/action.rb', line 51

def on_placeholder_dir(base_dir_path, target_dir_path, found = false)
  if (!target_dir_path || target_dir_path == "")
    if found
      return base_dir_path
    else
      return nil
    end
  end
  target_dir_path = target_dir_path.gsub(/^\//, '')
  first_dir_name, *rest = target_dir_path.split('/')
  first_dir_path = File.join(base_dir_path, first_dir_name)
  if File.exists?(first_dir_path)
    on_placeholder_dir(first_dir_path, rest.join('/'))
  else
    new_dir = search_placeholder_dir(base_dir_path, first_dir_name)
    if new_dir
      on_placeholder_dir(new_dir, rest.join('/'), true)
    end
  end
end

#search_placeholder_dir(base_dir_path, target_dir_name) ⇒ Object 



72
73
74
75
76
77
78
79
80
81
82
83
 
# File 'lib/cameleon/action.rb', line 72

def search_placeholder_dir(base_dir_path, target_dir_name)
  files = Dir.glob(File.join(base_dir_path, '*'))
  # find directory start with $.
  # if there are some directories start with $, use one that found first.
  found = files.find_all{ |f| File.directory?(f) }.find{ |f| ret = f =~ /.*\$([a-zA-Z0-9]*)$/ }
  if (found)
    path_name = $1
    @params[path_name] = target_dir_name
    ret = File.join(base_dir_path, "$" + path_name)
    ret
  end
end

#switch_filepath ⇒ Object 



17
18
19
 
# File 'lib/cameleon/action.rb', line 17

def switch_filepath
  File.join @base_path, "_switch.rb"
end

#validate_json ⇒ Object 



96
97
98
99
100
101
102
103
104
105
106
107
 
# File 'lib/cameleon/action.rb', line 96

def validate_json
  schema_filepath = File.join(@base_path, "request.schema.json")
  if File.exists? schema_filepath
    begin
      schema = JSON.parse File.read(schema_filepath)
      JSON::Validator.validate!(schema, @body)
    rescue JSON::Schema::ValidationError => e
      error_body = {"error" => e.message}.to_json
      raise Cameleon::ValidationError.new(error_body)
    end
  end
end

#validate_request_body ⇒ Object 



85
86
87
88
89
90
91
92
93
94
 
# File 'lib/cameleon/action.rb', line 85

def validate_request_body
  validation_type = Cameleon.config.validation && Cameleon.config.validation.type
  case validation_type
  when "json"
    validate_json
  when nil
  else
    raise "unknown validation type '#{validation_type}' in config.yml"
  end
end