Class: PuppetLint::CheckPlugin

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet-lint/linter.rb

Instance Method Summary collapse

Instance Method Details

#filter_credentials(tokens) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 121

def filter_credentials(tokens)
   credentials = {}  
   tokens.each do |token|         
      next if token.next_code_token.nil?
      next if token.prev_code_token.nil?
      # accepts (<VARIABLE>|<NAME>) =~ SECRET (<EQUALS>|<FARROW>) !(<STRING>|<SSTRING>|<NAME>) =~ (NONSECRET AND PLACHOLDER)
      if [:VARIABLE, :NAME].include? token.prev_code_token.type and [:EQUALS, :FARROW].include? token.type and token.prev_code_token.value.downcase =~ Rules.secret and !(token.next_code_token.value.downcase =~ Rules.nonsecret) and !(token.next_code_token.value.downcase =~ Rules.placeholder)
         # check if username
         left_side_value = token.prev_code_token.value.downcase
         is_username = left_side_value[Rules.username]
         is_password = left_side_value[Rules.password]
         if !is_username.nil?
            puts is_username
            context = left_side_value.gsub(is_username, '')
            if context.length > 0
               puts "CONTEXT", context
            end
            credentials.merge!(context => {:username => left_side_value }) if context.length > 0
         end
         if !is_password.nil?
            puts is_password
            context = left_side_value.gsub(is_password, '')
            if context.length > 0
               puts "CONTEXT", context
            end
            credentials.merge!(context => {:password => left_side_value }) if context.length > 0
         end
      end
   end
   puts credentials
end

#filter_resources(tokens, resources) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 75

def filter_resources(tokens, resources)
   is_resource = false  
   brackets = 0
   ftokens=tokens.find_all do |hash|
      
      if resources.include? hash.value.downcase
         is_resource = true
      elsif is_resource and hash.type == :LBRACE
         brackets += 1
      elsif is_resource and hash.type == :RBRACE
         brackets -=1
      end

      if is_resource and hash.type == :RBRACE and brackets == 0
         is_resource = false
      end

      if !is_resource
         [:NAME, :VARIABLE, :SSTRING, :STRING].include? hash.type
      end
   end
   return ftokens
end

#filter_tokens(tokens) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 114

def filter_tokens(tokens)
   ftokens=tokens.find_all do |hash|
      [:NAME, :VARIABLE, :SSTRING, :STRING].include? hash.type
   end
   return ftokens
end

#filter_tokens_per_value(tokens, token) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 107

def filter_tokens_per_value(tokens, token)
   ftokens=tokens.find_all do |hash|
      [:NAME, :SSTRING, :STRING].include? hash.type and !hash.value.downcase.include? token
   end
   return ftokens
end

#filter_variables(tokens, keywords) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 153

def filter_variables(tokens, keywords)
   line = -1
   kw_regex = Regexp.new keywords.join("|")
   ftokens=tokens.find_all do |hash|
      if [:NAME, :VARIABLE].include? hash.type and hash.value.downcase =~ kw_regex
         line = hash.line
      elsif hash.line != line
         hash
      end
   end
end

#filter_whitelist(tokens) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 99

def filter_whitelist(tokens)
   whitelist=Config.regex.whitelist 
   ftokens=tokens.find_all do |hash|
      !(whitelist =~ hash.value.downcase)
   end
   return ftokens
end

#get_comments(tokens) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 68

def get_comments(tokens)
   ftokens=tokens.find_all do |hash|
      [:COMMENT, :MLCOMMENT, :SLASH_COMMENT].include? hash.type
   end
   return ftokens
end

#get_dependencies(tokens) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 11

def get_dependencies(tokens)
   is_resource = false
   ftokens = []
   dependency = ''
   tokens.each do |token|

      is_next_brace = (not token.next_code_token.nil? and token.next_code_token.type == :LBRACE)
      is_prev_brace = (not token.prev_code_token.nil? and token.prev_code_token.type == :LBRACE)

      if (token.value.downcase[Config.regex.dependencies] and token.type == :NAME and is_next_brace) or (token.value.downcase[Config.regex.dependencies] and token.type == :SSTRING and is_prev_brace)
         is_resource = true
         dependency = token.value.downcase[Config.regex.dependencies]
      end 

      if is_resource and token.type == :RBRACE
         is_resource = false
      end
  
      if not is_resource and not token.next_code_token.nil? 
         if token.value.downcase[Config.regex.dependencies] and token.value.downcase[/_version/]
            dependency = token.value.downcase[Config.regex.dependencies]
            variable_name = "#{dependency}_version"
            if token.value.downcase == variable_name and [:EQUALS, :FARROW].include? token.next_code_token.type
               ftokens += [{"token": token.next_code_token, "dependency": dependency}]
            end
         end
      end
      
      is_assign = (not token.prev_code_token.nil? and not token.next_code_token.nil?)
      is_version = (is_assign and token.prev_code_token.value.downcase =~ /version/)
      
      if is_resource and is_version and [:EQUALS, :FARROW].include? token.type and ![:VARIABLE, :NAME].include? token.next_code_token.type
         if !token.prev_code_token.value.downcase[Config.regex.dependencies].eql? dependency and token.prev_code_token.value.downcase[Config.regex.dependencies]
            ftokens += [{"token": token, "dependency": token.prev_code_token.value.downcase[Config.regex.dependencies]}]
         else
            ftokens += [{"token": token, "dependency": dependency}]
         end
      end

   end
   return ftokens
end

#get_malicious_cves(dependency, version) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 3

def get_malicious_cves(dependency, version)
   path = "#{Config.dpath}#{dependency}.json"
   cves = JSON.parse(File.read(path))
   if !cves[version].nil?
      return cves[version]
   end
end

#get_string_tokens(tokens, token) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 54

def get_string_tokens(tokens, token)
   ftokens=tokens.find_all do |hash|
      [:SSTRING, :STRING].include? hash.type and hash.value.downcase.include? token
   end
   return ftokens
end

#get_tokens(tokens, token) ⇒ Object 



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# File 'lib/puppet-lint/linter.rb', line 61

def get_tokens(tokens, token)
   ftokens=tokens.find_all do |hash|
      [:NAME, :VARIABLE, :SSTRING, :STRING].include? hash.type and hash.value.downcase.include? token
   end
   return ftokens
end