Class: Brakeman::GemProcessor

Inherits:
BaseProcessor show all
Defined in:
lib/brakeman/processors/gem_processor.rb

Overview

Processes Gemfile and Gemfile.lock

Constant Summary

Constants inherited from BaseProcessor

BaseProcessor::IGNORE

Constants included from Util

Util::ALL_PARAMETERS, Util::COOKIES, Util::COOKIES_SEXP, Util::PARAMETERS, Util::PARAMS_SEXP, Util::PATH_PARAMETERS, Util::QUERY_PARAMETERS, Util::REQUEST_ENV, Util::REQUEST_PARAMETERS, Util::REQUEST_PARAMS, Util::SESSION, Util::SESSION_SEXP

Constants inherited from SexpProcessor

SexpProcessor::VERSION

Instance Attribute Summary

Attributes inherited from SexpProcessor

#context, #env, #expected

Instance Method Summary collapse

Methods inherited from BaseProcessor

#find_render_type, #ignore, #make_render, #make_render_in_view, #process_arglist, #process_attrasgn, #process_block, #process_class, #process_default, #process_dstr, #process_evstr, #process_hash, #process_if, #process_ignore, #process_iter, #process_lasgn, #process_scope

Methods included from Util

#array?, #block?, #call?, #camelize, #contains_class?, #context_for, #cookies?, #false?, #file_by_name, #file_for, #hash?, #hash_access, #hash_insert, #hash_iterate, #integer?, #make_call, #node_type?, #number?, #params?, #pluralize, #regexp?, #relative_path, #request_env?, #request_value?, #result?, #set_env_defaults, #sexp?, #string?, #symbol?, #table_to_csv, #true?, #truncate_table, #underscore

Methods included from ProcessorHelper

#class_name, #process_all, #process_all!, #process_call_args, #process_module

Methods inherited from SexpProcessor

#error_handler, #in_context, #process, #process_dummy, #scope

Constructor Details

#initialize(*args) ⇒ GemProcessor

Returns a new instance of GemProcessor.



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# File 'lib/brakeman/processors/gem_processor.rb', line 6

def initialize *args
  super
  @gem_name_version = /^\s*([-_+.A-Za-z0-9]+) \((\w(\.\w+)*)\)/
  @tracker.config[:gems] ||= {}
end

Instance Method Details

#process_call(exp) ⇒ Object 



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# File 'lib/brakeman/processors/gem_processor.rb', line 34

def process_call exp
  if exp.target == nil and exp.method == :gem
    gem_name = exp.first_arg
    return exp unless string? gem_name

    gem_version = exp.second_arg

    if string? gem_version
      @tracker.config[:gems][gem_name.value.to_sym] = gem_version.value
    else
      @tracker.config[:gems][gem_name.value.to_sym] = ">=0.0.0"
    end
  end

  exp
end

#process_gem_lock(gem_lock) ⇒ Object 



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# File 'lib/brakeman/processors/gem_processor.rb', line 51

def process_gem_lock gem_lock
  gem_lock.each_line do |line|
    set_gem_version line
  end
end

#process_gems(src, gem_lock = nil) ⇒ Object 



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# File 'lib/brakeman/processors/gem_processor.rb', line 12

def process_gems src, gem_lock = nil
  process src

  if gem_lock
    process_gem_lock gem_lock
    @tracker.config[:rails_version] = @tracker.config[:gems][:rails]
  elsif @tracker.config[:gems][:rails] =~ /(\d+.\d+.\d+)/
    @tracker.config[:rails_version] = $1
  end

  if @tracker.config[:rails_version] =~ /^(3|4)\./ and not @tracker.options[:rails3]
    @tracker.options[:rails3] = true
    Brakeman.notify "[Notice] Detected Rails #$1 application"
  end

  if @tracker.config[:gems][:rails_xss]
    @tracker.config[:escape_html] = true

    Brakeman.notify "[Notice] Escaping HTML by default"
  end
end

#set_gem_version(line) ⇒ Object

Supports .rc2 but not ~>, >=, or <=



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# File 'lib/brakeman/processors/gem_processor.rb', line 58

def set_gem_version line
  if line =~ @gem_name_version
    @tracker.config[:gems][$1.to_sym] = $2
  end
end