Imaplogin - lastauth

[Carlos García Gómez]

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Hello,

 

I need to store last authentication time for imap login.

 

I use courier-imap with openldap ( I don´t use vpopmail !!! )

 

I have thought I would do something like this:

 

    char *tmpbuf;
    FILE *fs;

 

    tmpbuf = (char *) malloc(300);
    sprintf(tmpbuf, "%s/lastauth", user_maildir); // I would nee user_maildir 
    if ( (fs = fopen(tmpbuf,"w+")) == NULL ) {
        free(tmpbuf);
        return -1;
    }

 

    fprintf(fs, "%s", mbox);
    fprintf(fs, "%s", "imap");
    fclose(fs);
    free(tmpbuf);

 

 

but I don´t know where can I put it on.

 

Any Ideas?

 

 

 

 

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[MrC-4]

Carlos,

Carlos García Gómez wrote:
> I need to store last authentication time for imap login.
> I use courier-imap with openldap ( I don´t use vpopmail !!! )
> I have thought I would do something like this:

>     char *tmpbuf;
>     FILE *fs;
>
>     tmpbuf = (char *) malloc(300);
>     sprintf(tmpbuf, "%s/lastauth", user_maildir); // I would nee user_maildir
>     if ( (fs = fopen(tmpbuf,"w+")) == NULL ) {
>         free(tmpbuf);
>         return -1;
>     }
>
>     fprintf(fs, "%s", mbox);
>     fprintf(fs, "%s", "imap");
>     fclose(fs);
>     free(tmpbuf);
>
>
> but I don´t know where can I put it on.
>
> Any Ideas?

You mean you need something more than your maillog provides, such as:

Jul  3 09:47:30 glacier imapd-ssl: LOGIN, user=me@...,
   ip=[192.168.0.50], port=[2813], protocol=IMAP

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[Aaron Brace-2]

Carlos,

                Why not make a small LDAP schema change and perform an ldap modify? You can place that code right in authdaemon. That is what I did and it has worked fine for years with more than 75,000 mailboxes.

---Aaron

  

Aaron Brace
Director of Engineering & Principal Architect
Metrocast Cablevision
abrace@...
603-330-7772


On Thu 07/03/08 07:16 , Carlos García Gómez carlos.garcia@... sent:

Hello,

 

I need to store last authentication time for imap login.

 

I use courier-imap with openldap ( I don´t use vpopmail !!! )

 

I have thought I would do something like this:

 

    char *tmpbuf;
    FILE *fs;

 

    tmpbuf = (char *) malloc(300);
    sprintf(tmpbuf, "%s/lastauth", user_maildir); // I would nee user_maildir 
    if ( (fs = fopen(tmpbuf,"w+")) == NULL ) {
        free(tmpbuf);
        return -1;
    }

 

    fprintf(fs, "%s", mbox);
    fprintf(fs, "%s", "imap");
    fclose(fs);
    free(tmpbuf);

 

 

but I don´t know where can I put it on.

 

Any Ideas?

 

 

 

 

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[Jeronimo Zucco]

abrace@... wrote:
> Carlos,
>
>                 Why not make a small LDAP schema change and perform an
> ldap modify? You can place that code right in authdaemon. That is what
> I did and it has worked fine for years with more than 75,000 mailboxes.

    This is what I would like to do in my courier setup. How did you do
it? Can you give some information about it ?

Thanks

--
Jeronimo Zucco
LPIC-1 Linux Professional Institute Certified
Núcleo de Processamento de Dados
Universidade de Caxias do Sul

http://jczucco.blogspot.com


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[Aaron Brace-2]

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Jeronimo,

                   Change your LDAP schema to add an attribute called "LastMailCheckTime" (or any other name you would like).

                   You can then add this code to the auth_ldap_do3 function in  authldaplib.c after the authentication bind is successful. Note that I do an async ldap_modify so that authdaemon does not block waiting on the modify.

                   I wrote this up quick so you may want to double check it. Any questions, let me know.


---Aaron




                                                       LDAPMod *mod_ctime_send[2];
                                                       LDAPMod mod_ctime_up;
                                                       char *ctime_attribute_name="LastMailCheckTime";
                                                       char ctime_value[512];
                                                       char *mod_update_vals[2];
                                                       time_t m_check_time;

                                                       m_check_time=time(NULL);

                                                       mod_ctime_send[0]=&mod_ctime_up;
                                                       mod_ctime_send[1]=0;

                                                       sprintf(ctime_value,"%u",(unsigned int) m_check_time);

                                                       mod_ctime_up.mod_op=LDAP_MOD_REPLACE;
                                                       mod_ctime_up.mod_type=ctime_attribute_name;
                                                       mod_ctime_up.mod_values=mod_update_vals;

                                                       mod_update_vals[0]=ctime_value;
                                                       mod_update_vals[1]=NULL;


                                                       //ASYNCHRONUS UPDATE
                                                       ldap_modify(bindp, dn, mod_ctime_send);
 


On Thu 07/03/08 16:57 , Jeronimo Zucco jczucco@... sent:

abrace@... wrote:
> Carlos,
>
> Why not make a small LDAP schema change and perform an
> ldap modify? You can place that code right in authdaemon. That is what
> I did and it has worked fine for years with more than 75,000 mailboxes.

This is what I would like to do in my courier setup. How did you do
it? Can you give some information about it ?

Thanks

--
Jeronimo Zucco
LPIC-1 Linux Professional Institute Certified
Núcleo de Processamento de Dados
Universidade de Caxias do Sul

http://jczucco.blogspot.com

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[Brian Candler]

On Thu, Jul 03, 2008 at 01:16:57PM +0200, Carlos García Gómez wrote:
>    I need to store last authentication time for imap login.

A simple solution is to look at the mtime timestamp on the 'cur'
subdirectory of the Maildir. This is because every time the user logs in,
any mail in new/ is moved to cur/, and this updates the timestamp on cur/.

This doesn't work if the user has no new mail, but you can add a simple
patch to update the cur/ directory in that case.

The attached patches are a couple of years old, you'll have to see if they
still apply cleanly. They have been posted before, e.g.
http://sourceforge.net/mailarchive/message.php?msg_id=20080401054905.GA13986%40uk.tiscali.com

Regards,

Brian.

diff -uNr courier-imap-4.0.3.orig/imap/imapscanclient.c courier-imap-4.0.3/imap/imapscanclient.c
--- courier-imap-4.0.3.orig/imap/imapscanclient.c Tue Jul 20 00:54:14 2004
+++ courier-imap-4.0.3/imap/imapscanclient.c Sun May 22 18:16:33 2005
@@ -358,6 +358,7 @@
 struct dirent *de;
 unsigned long left_unseen=0;
 int dowritecache=0;
+int gotnew=0;
 
  if (is_sharedsubdir(dir))
  maildir_shared_sync(dir);
@@ -723,6 +724,7 @@
  }
 
  if (dirp) closedir(dirp);
+ if (n) gotnew = 1;
 
  while (n)
  {
@@ -749,6 +751,13 @@
  }
  } while (keepgoing);
  }
+
+ /* Update the 'cur' timestamp if no new mail arrived */
+ if (!gotnew) {
+ strcpy(p+strlen(p)-3, "cur");
+ utimes(p, 0);
+ }
+
  free(p);
 
  /*
diff -uNr courier-imap-4.0.3.orig/maildir/maildirgetnew.c courier-imap-4.0.3/maildir/maildirgetnew.c
--- courier-imap-4.0.3.orig/maildir/maildirgetnew.c Tue Jun  8 23:44:24 2004
+++ courier-imap-4.0.3/maildir/maildirgetnew.c Sun May 22 18:09:46 2005
@@ -77,6 +77,7 @@
  int n;
  char *new_buf[20];
  char *cur_buf[20];
+ int gotnew = 0;
 
  do
  {
@@ -125,6 +126,7 @@
  }
  }
  if (dirp) closedir(dirp);
+ if (n) gotnew = 1;
 
  while (n)
  {
@@ -151,4 +153,7 @@
  free(cp);
  }
  } while (keepgoing);
+
+ /* Update the 'cur' timestamp even if no new mail arrived */
+ if (!gotnew) utimes(curd, 0);
 }

diff --exclude *~ -uNr sqwebmail-5.0.2.orig/sqwebmail/maildir.c sqwebmail-5.0.2/sqwebmail/maildir.c
--- sqwebmail-5.0.2.orig/sqwebmail/maildir.c Thu Oct 21 02:13:18 2004
+++ sqwebmail-5.0.2/sqwebmail/maildir.c Sun May 22 20:15:03 2005
@@ -1115,6 +1115,7 @@
  DIR *dirp;
  struct dirent *dire;
  char acl_buf[2];
+ int gotnew=0;
 
  /* Delete old files in tmp */
 
@@ -1143,8 +1144,14 @@
  rename(oldname, newname);
  free(oldname);
  free(newname);
+ gotnew=1;
  }
  if (dirp) closedir(dirp);
+ if (!gotnew) {
+ /* Update the 'cur' timestamp if no new mail arrived */
+ strcpy(dirbuf+strlen(dirbuf)-3, "cur");
+ utimes(dirbuf, 0);
+ }
  free(dirbuf);
 
  /* Look for any messages mark as deleted.  When we delete a message

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[Jeronimo Zucco]

Brian Candler wrote:
> A simple solution is to look at the mtime timestamp on the 'cur'
> subdirectory of the Maildir. This is because every time the user logs in,
> any mail in new/ is moved to cur/, and this updates the timestamp on cur/.
>
>  

    For performance reasons, I've disabled log of timestamp access in
the Maildir's partition with "noatime" option, this solution doesn't
work  in my setup.

    I'll try Aaron's solution. Thank you all !

--
Jeronimo Zucco
LPIC-1 Linux Professional Institute Certified
Núcleo de Processamento de Dados
Universidade de Caxias do Sul

http://jczucco.blogspot.com


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[Brian Candler]

On Fri, Jul 04, 2008 at 08:42:03AM -0300, Jeronimo Zucco wrote:

> Brian Candler wrote:
> > A simple solution is to look at the mtime timestamp on the 'cur'
> > subdirectory of the Maildir. This is because every time the user logs in,
> > any mail in new/ is moved to cur/, and this updates the timestamp on cur/.
> >
> >  
>
>     For performance reasons, I've disabled log of timestamp access in
> the Maildir's partition with "noatime" option, this solution doesn't
> work  in my setup.

You misunderstand. There are three inode timestamps:

ctime - when file's status was last changed
mtime - when file was modified
atime - when file was accessed

Disabling atime updates doesn't affect the other two. mtime is always
updated when a file or directory is changed. 'man 2 stat' for more info.

Brian.

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