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File Content: htpasswd.rb

# frozen_string_literal: false
#
# httpauth/htpasswd -- Apache compatible htpasswd file
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2003 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: htpasswd.rb,v 1.4 2003/07/22 19:20:45 gotoyuzo Exp $

require_relative 'userdb'
require_relative 'basicauth'
require 'tempfile'

module WEBrick
  module HTTPAuth

##
    # Htpasswd accesses apache-compatible password files.  Passwords are
    # matched to a realm where they are valid.  For security, the path for a
    # password database should be stored outside of the paths available to the
    # HTTP server.
    #
    # Htpasswd is intended for use with WEBrick::HTTPAuth::BasicAuth.
    #
    # To create an Htpasswd database with a single user:
    #
    #   htpasswd = WEBrick::HTTPAuth::Htpasswd.new 'my_password_file'
    #   htpasswd.set_passwd 'my realm', 'username', 'password'
    #   htpasswd.flush

class Htpasswd
      include UserDB

##
      # Open a password database at +path+

def initialize(path, password_hash: nil)
        @path = path
        @mtime = Time.at(0)
        @passwd = Hash.new
        @auth_type = BasicAuth
        @password_hash = password_hash

case @password_hash
        when nil
          # begin
          #   require "string/crypt"
          # rescue LoadError
          #   warn("Unable to load string/crypt, proceeding with deprecated use of String#crypt, consider using password_hash: :bcrypt")
          # end
          @password_hash = :crypt
        when :crypt
          # require "string/crypt"
        when :bcrypt
          require "bcrypt"
        else
          raise ArgumentError, "only :crypt and :bcrypt are supported for password_hash keyword argument"
        end

File.open(@path,"a").close unless File.exist?(@path)
        reload
      end

##
      # Reload passwords from the database

def reload
        mtime = File::mtime(@path)
        if mtime > @mtime
          @passwd.clear
          File.open(@path){|io|
            while line = io.gets
              line.chomp!
              case line
              when %r!\A[^:]+:[a-zA-Z0-9./]{13}\z!
                if @password_hash == :bcrypt
                  raise StandardError, ".htpasswd file contains crypt password, only bcrypt passwords supported"
                end
                user, pass = line.split(":")
              when %r!\A[^:]+:\$2[aby]\$\d{2}\$.{53}\z!
                if @password_hash == :crypt
                  raise StandardError, ".htpasswd file contains bcrypt password, only crypt passwords supported"
                end
                user, pass = line.split(":")
              when /:\$/, /:{SHA}/
                raise NotImplementedError,
                      'MD5, SHA1 .htpasswd file not supported'
              else
                raise StandardError, 'bad .htpasswd file'
              end
              @passwd[user] = pass
            end
          }
          @mtime = mtime
        end
      end

##
      # Flush the password database.  If +output+ is given the database will
      # be written there instead of to the original path.

def flush(output=nil)
        output ||= @path
        tmp = Tempfile.create("htpasswd", File::dirname(output))
        renamed = false
        begin
          each{|item| tmp.puts(item.join(":")) }
          tmp.close
          File::rename(tmp.path, output)
          renamed = true
        ensure
          tmp.close
          File.unlink(tmp.path) if !renamed
        end
      end

##
      # Retrieves a password from the database for +user+ in +realm+.  If
      # +reload_db+ is true the database will be reloaded first.

def get_passwd(realm, user, reload_db)
        reload() if reload_db
        @passwd[user]
      end

##
      # Sets a password in the database for +user+ in +realm+ to +pass+.

def set_passwd(realm, user, pass)
        if @password_hash == :bcrypt
          # Cost of 5 to match Apache default, and because the
          # bcrypt default of 10 will introduce significant delays
          # for every request.
          @passwd[user] = BCrypt::Password.create(pass, :cost=>5)
        else
          @passwd[user] = make_passwd(realm, user, pass)
        end
      end

##
      # Removes a password from the database for +user+ in +realm+.

def delete_passwd(realm, user)
        @passwd.delete(user)
      end

##
      # Iterate passwords in the database.

def each # :yields: [user, password]
        @passwd.keys.sort.each{|user|
          yield([user, @passwd[user]])
        }
      end
    end
  end
end

Name	Size	Permission
authenticator.rb	3101 bytes	0644
basicauth.rb	3328 bytes	0644
digestauth.rb	13103 bytes	0644
htdigest.rb	3515 bytes	0644
htgroup.rb	2489 bytes	0644
htpasswd.rb	4699 bytes	0644
userdb.rb	1346 bytes	0644