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Contents
# (c) Copyright IBM Corp. 2021
# (c) Copyright Instana Inc. 2021
require 'uri'
require 'cgi'
module Instana
class Secrets
def initialize(logger: ::Instana.logger)
@logger = logger
end
def remove_from_query(str, secret_values = Instana.agent.secret_values)
return str unless secret_values && str
begin
url = URI(str)
params = url.scheme ? CGI.parse(url.query || '') : CGI.parse(url.to_s)
redacted = redact(params, secret_values)
url.query = URI.encode_www_form(redacted)
url.scheme ? CGI.unescape(url.to_s) : CGI.unescape(url.query)
rescue URI::InvalidURIError => _e
params = CGI.parse(str || '')
redacted = redact(params, secret_values)
CGI.unescape(URI.encode_www_form(redacted))
end
end
private
def redact(params, secret_values)
params.map do |k, v|
needs_redaction = secret_values['list']
.any? { |t| matcher(secret_values['matcher']).(t,k) }
[k, needs_redaction ? '<redacted>' : v]
end
end
def matcher(name)
case name
when 'equals-ignore-case'
->(expected, actual) { expected.casecmp(actual) == 0 }
when 'equals'
->(expected, actual) { (expected <=> actual) == 0 }
when 'contains-ignore-case'
->(expected, actual) { actual.downcase.include?(expected) }
when 'contains'
->(expected, actual) { actual.include?(expected) }
when 'regex'
->(expected, actual) { !Regexp.new(expected).match(actual).nil? }
else
@logger.warn("Matcher #{name} is not supported.")
->(_e, _a) { false }
end
end
end
end
Version data entries
35 entries across 35 versions & 1 rubygems