Class: RightAws::AwsUtils

Inherits:
Object show all
Defined in:
lib/awsbase/right_awsbase.rb

Overview

:nodoc:

Constant Summary collapse

@@digest = 
OpenSSL::Digest::Digest.new("sha1")

Class Method Summary collapse

Class Method Details

.allow_only(allowed_keys, params) ⇒ Object

Raises:



49
50
51
52
53
 
# File 'lib/awsbase/right_awsbase.rb', line 49

def self.allow_only(allowed_keys, params)
  bogus_args = []
  params.keys.each {|p| bogus_args.push(p) unless allowed_keys.include?(p) }
  raise AwsError.new("The following arguments were given but are not legal for the function call #{caller_method}: #{bogus_args.inspect}") if bogus_args.length > 0
end

.caller_method ⇒ Object 



61
62
63
64
 
# File 'lib/awsbase/right_awsbase.rb', line 61

def self.caller_method
  caller[1]=~/`(.*?)'/
  $1
end

.mandatory_arguments(required_args, params) ⇒ Object

Raises:



55
56
57
58
59
 
# File 'lib/awsbase/right_awsbase.rb', line 55

def self.mandatory_arguments(required_args, params)
  rargs = required_args.dup
  params.keys.each {|p| rargs.delete(p)}
  raise AwsError.new("The following mandatory arguments were not provided to #{caller_method}: #{rargs.inspect}") if rargs.length > 0
end

.sign(aws_secret_access_key, auth_string) ⇒ Object 



31
32
33
 
# File 'lib/awsbase/right_awsbase.rb', line 31

def self.sign(aws_secret_access_key, auth_string)
  Base64.encode64(OpenSSL::HMAC.digest(@@digest, aws_secret_access_key, auth_string)).strip
end

.URLencode(raw) ⇒ Object

From Amazon’s SQS Dev Guide, a brief description of how to escape: “URL encode the computed signature and other query parameters as specified in RFC1738, section 2.2. In addition, because the + character is interpreted as a blank space by Sun Java classes that perform URL decoding, make sure to encode the + character although it is not required by RFC1738.” Avoid using CGI::escape to escape URIs. CGI::escape will escape characters in the protocol, host, and port sections of the URI. Only target chars in the query string should be escaped.



44
45
46
47
 
# File 'lib/awsbase/right_awsbase.rb', line 44

def self.URLencode(raw)
  e = URI.escape(raw)
  e.gsub(/\+/, "%2b")
end