Exception: Rancher::Error

Inherits:
StandardError
  • Object
show all
Defined in:
lib/rancher/error.rb

Overview

Custom error class for rescuing from all Rancher errors

Direct Known Subclasses

ClientError, ServerError

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response = nil) ⇒ Error

Returns a new instance of Error.



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# File 'lib/rancher/error.rb', line 36

def initialize(response=nil)
  @response = response
  super(build_error_message)
end

Class Method Details

.error_for_401(headers) ⇒ Object

Returns most appropriate error for 401 HTTP status code



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# File 'lib/rancher/error.rb', line 50

def self.error_for_401(headers)
  if Rancher::OneTimePasswordRequired.required_header(headers)
    Rancher::OneTimePasswordRequired
  else
    Rancher::Unauthorized
  end
end

.error_for_403(body) ⇒ Object

Returns most appropriate error for 403 HTTP status code



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# File 'lib/rancher/error.rb', line 60

def self.error_for_403(body)
  if body =~ /rate limit exceeded/i
    Rancher::TooManyRequests
  elsif body =~ /login attempts exceeded/i
    Rancher::TooManyLoginAttempts
  elsif body =~ /abuse/i
    Rancher::AbuseDetected
  elsif body =~ /repository access blocked/i
    Rancher::RepositoryUnavailable
  else
    Rancher::Forbidden
  end
end

.from_response(response) ⇒ Rancher::Error

Returns the appropriate Rancher::Error subclass based on status and response message

Parameters:

  • response (Hash) —

    HTTP response

Returns:



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# File 'lib/rancher/error.rb', line 10

def self.from_response(response)
  status  = response[:status].to_i
  body    = response[:body].to_s
  headers = response[:response_headers]

  if klass =  case status
              when 400      then Rancher::BadRequest
              when 401      then error_for_401(headers)
              when 403      then error_for_403(body)
              when 404      then Rancher::NotFound
              when 405      then Rancher::MethodNotAllowed
              when 406      then Rancher::NotAcceptable
              when 409      then Rancher::Conflict
              when 415      then Rancher::UnsupportedMediaType
              when 422      then Rancher::UnprocessableEntity
              when 400..499 then Rancher::ClientError
              when 500      then Rancher::InternalServerError
              when 501      then Rancher::NotImplemented
              when 502      then Rancher::BadGateway
              when 503      then Rancher::ServiceUnavailable
              when 500..599 then Rancher::ServerError
              end
    klass.new(response)
  end
end

Instance Method Details

#documentation_url ⇒ String

Documentation URL returned by the API for some errors

Returns:

  • (String) 


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# File 'lib/rancher/error.rb', line 44

def documentation_url
  data[:documentation_url] if data.is_a? Hash
end

#errors ⇒ Array<Hash>

Array of validation errors

Returns:

  • (Array<Hash>) —

    Error info



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# File 'lib/rancher/error.rb', line 76

def errors
  if data && data.is_a?(Hash)
    data[:errors] || []
  else
    []
  end
end