[Exim] CRAM-MD5 with no clear password

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Autor: Silmar A. Marca
Data:  
Para: exim-users
Assunto: [Exim] CRAM-MD5 with no clear password
For a clear password have this example:
cram_md5:
  driver = cram_md5
  public_name = CRAM-MD5
  server_secret = \
    ${lookup mysql{SELECT clear FROM passwd \
    WHERE id='$1'}{$value}fail}
  server_set_id = $1


Question: How to use only no clear bd? The field is "pass_md5". In other auth,
i'm use (this configuration is OK and tested):
----
#main
MYSQL_PASSWD_MD5_LOGIN = SELECT popbox.password_md5 from popbox LEFT JOIN
domain ON ( popbox.domain_name = domain.domain_name ) where popbox.l
ocal_part='${quote_mysql:${extract {1}{@%!}{$1}}}' and
popbox.domain_name='${quote_mysql:${extract {2}{@%!}{$1}}}' AND
domain.ativo='1' AND popb
ox.ativo='1'
MYSQL_PASSWD_MD5_PLAIN = SELECT popbox.password_md5 from popbox LEFT JOIN
domain ON ( popbox.domain_name = domain.domain_name ) where popbox.l
ocal_part='${quote_mysql:${extract {1}{@%!}{$2}}}' and
popbox.domain_name='${quote_mysql:${extract {2}{@%!}{$2}}}' AND
domain.ativo='1' AND popb
ox.ativo='1'
---
begin authenticators

# PLAIN: user e pass codificados em base64-coded - usado pelo Netscape
fixed_plain:
  driver                = plaintext
  public_name           = PLAIN
  server_condition      = "${if eq {${if match{$2}{@}{yes}{no}}}{yes}\
    {${if and{\
        {!eq {$2}{}} {!eq {$3}{}} \
        {eq {${lookup mysql {MYSQL_PASSWD_MD5_PLAIN}{$value}{*:*}}}{${md5:$3}}}
\
      }{yes}{no}}}\
      {${if pam{$2:${sg{$3}{:}{::}}}{yes}{no}}}}"
  server_set_id = $2


# LOGIN: codificacao em md5-encoded com usado pelo Outlook Express
fixed_login:
  driver                = plaintext
  public_name           = LOGIN
  server_prompts        = "Username:: : Password::"
  server_condition      = "${if eq {${if match{$1}{@}{yes}{no}}}{yes}\
    {${if and{\
        {!eq {$1}{}} {!eq {$2}{}} \
        {eq {${lookup mysql {MYSQL_PASSWD_MD5_LOGIN}{$value}{*:*}}}{${md5:$2}}}
\
      }{yes}{no}}}\
      {${if pam{$1:${sg{$2}{:}{::}}}{yes}{no}}}}"
  server_set_id = $1



Cordialmente, Silmar A. Marca
GrupoGSN - Desenvolvimento, Implantação e Verificação de Servidores
Profissionais baseados em Linux/Novell
http://www.grupogsn.com.br/~marca/
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