diff -Naur cyrus-imapd-2.3.16/README.autosievefolder cyrus-imapd-2.3.16-autosieve.uncompiled/README.autosievefolder

--- cyrus-imapd-2.3.16/README.autosievefolder	1970-01-01 02:00:00.000000000 +0200

+++ cyrus-imapd-2.3.16-autosieve.uncompiled/README.autosievefolder	2009-12-23 01:08:09.000000000 +0200

@@ -0,0 +1,42 @@

+Cyrus IMAP autosievefolder patch

+----------------------------------

+

+NOTE : This patch has been created at the University of Athens. For more info, as well 

+as more patches on Cyrus IMAPD server, please visit http://email.uoa.gr 

+

+

+  When the lmtpd daemon receives an email message prior to delivering it to the 

+INBOX folder of the user, checks if the user has specified sieve filters. If the

+user has specified sieve filters the filters are evaluated. If the message matches

+any of the filters the action that is specified in the filter is executed. If the action 

+is FileInto it is stored in the subfolder specified in the filter. If the 

+subfolder doesn't exist then the message is sent to the INBOX folder of the user.

+

+  With this patch if the folder doesn't exist AND the name of the subfolder is 

+specified in the autosievefolders option, OR the anysievefolder is set to 

+yes in the cyrus-imap configuration file then the subfolder is created and the mail 

+is stored there.

+

+

+Check the following options of the imapd.conf file

+==================================================

+

+* anysievefolder : It must be "yes" in order to permit the autocreation of any 

+INBOX subfolder requested by a sieve filter, through the "fileinto" action. (default = no)

+* autosievefolders : It is a "|" separated list of subfolders of INBOX that will be 

+automatically created, if requested by a sieve filter, through the "fileinto" 

+action. (default = null)

+	i.e. autosievefolders: Junk | Spam

+

+WARNING: anysievefolder, takes precedence over autosievefolders . Which means that if 

+anysievefolder is set to "yes", cyrus will create any INBOX subfolder requested, no-matter what the value of autosievefolders is.

+

+

+Things to be done

+=================

+

+1. Support cyrus wildcards in the autosievefolders option. 

+

+

+For more information and updates please visit http://email.uoa.gr/projects/cyrus/autosievefolder

+

diff -Naur cyrus-imapd-2.3.16/imap/lmtp_sieve.c cyrus-imapd-2.3.16-autosieve.uncompiled/imap/lmtp_sieve.c

--- cyrus-imapd-2.3.16/imap/lmtp_sieve.c	2009-03-31 07:11:18.000000000 +0300

+++ cyrus-imapd-2.3.16-autosieve.uncompiled/imap/lmtp_sieve.c	2009-12-23 01:08:09.000000000 +0200

@@ -88,6 +88,9 @@

     struct auth_state *authstate;

 } script_data_t;

+static int autosieve_subfolder(char *userid, struct auth_state *auth_state,

+                               char *subfolder, struct namespace *namespace);

+

 static char *make_sieve_db(const char *user)

 {

     static char buf[MAX_MAILBOX_PATH+1];

@@ -484,7 +487,20 @@

 			      sd->username, mdata->notifyheader,

 			      namebuf, quotaoverride, 0);

     }

-

+    

+    if (ret == IMAP_MAILBOX_NONEXISTENT) {

+        /* if "plus" folder under INBOX, then try to create it */

+        ret = autosieve_subfolder((char *) sd->username, sd->authstate, namebuf, mdata->namespace);

+

+	/* Try to deliver the mail again. */

+        if (!ret)

+            ret = deliver_mailbox(md->f, mdata->content, mdata->stage, md->size,

+                                  fc->imapflags->flag, fc->imapflags->nflags,

+                                  (char *) sd->username, sd->authstate, md->id,

+                                  sd->username, mdata->notifyheader,

+                                  namebuf, quotaoverride, 0);

+    }

+    

     if (!ret) {

 	snmp_increment(SIEVE_FILEINTO, 1);

 	return SIEVE_OK;

@@ -935,3 +951,80 @@

        we'll do normal delivery */

     return r;

 }

+

+

+#define SEP '|'

+

+static int autosieve_subfolder(char *userid, struct auth_state *auth_state,

+                               char *subfolder, struct namespace *namespace)

+{

+     char option_name_external[MAX_MAILBOX_NAME + 1];

+     char option_name_internal[MAX_MAILBOX_NAME + 1];

+     const char *subf ;

+     char *p, *q, *next_subf;

+     int len, r = 0;

+     int createsievefolder = 0;

+

+    /* Check if subfolder or userid are NULL */

+    if(userid == NULL || subfolder == NULL)

+         return IMAP_MAILBOX_NONEXISTENT;

+

+    syslog(LOG_DEBUG, "autosievefolder: autosieve_subfolder() was called for user %s, folder %s", 

+		    userid, subfolder);

+

+    if (config_getswitch(IMAPOPT_ANYSIEVEFOLDER)) {

+         createsievefolder = 1;

+    } else if ((subf = config_getstring(IMAPOPT_AUTOSIEVEFOLDERS)) != NULL) {

+         /* Roll through subf */

+         next_subf = (char *) subf;

+         while (*next_subf) {

+              for (p = next_subf ; isspace((int) *p) || *p == SEP ; p++);

+              for (next_subf = p ; *next_subf && *next_subf != SEP ; next_subf++);

+              for (q = next_subf ; q > p && (isspace((int) *q) || *q == SEP || !*q); q--);

+

+              if (!*p) continue;

+                    

+              len = q - p + 1;

+             /*

+              * This is a preliminary length check based on the assumption

+              * that the *final* internal format will be something

+              * like user.userid.subfolder(s).

+              */

+              if (len > sizeof(option_name_external) - strlen(userid) - 5)

+                   return IMAP_MAILBOX_BADNAME;

+

+              strlcpy(option_name_external, namespace->prefix[NAMESPACE_INBOX], sizeof(option_name_external));

+	      strncat(option_name_external, p, len);

+                    

+              /* 

+               * Transform the option folder name to internal namespace and compare it

+	       * with what must be created.

+               */

+              r = namespace->mboxname_tointernal(namespace, option_name_external, userid, option_name_internal);

+              if (r) continue;

+

+              if (!strcmp(option_name_internal, subfolder)) {

+                  createsievefolder = 1;

+                  break;

+              }

+         }

+    }

+

+    if (createsievefolder) {

+        /* Folder is already in internal namespace format */

+        r = mboxlist_createmailbox(subfolder, MAILBOX_FORMAT_NORMAL, NULL,

+                                           1, userid, auth_state, 0, 0, 0);

+        if (!r) {

+            mboxlist_changesub(subfolder, userid, auth_state, 1, 1);

+            syslog(LOG_DEBUG, "autosievefolder: User %s, folder %s creation succeeded",

+                                                   userid, subfolder);

+            return 0;

+        } else {

+            syslog(LOG_ERR, "autosievefolder: User %s, folder %s creation failed. %s",

+                                                  userid, subfolder,error_message(r));

+            return r;

+        }

+    } else

+        return IMAP_MAILBOX_NONEXISTENT;

+}

+

diff -Naur cyrus-imapd-2.3.16/lib/imapoptions cyrus-imapd-2.3.16-autosieve.uncompiled/lib/imapoptions

--- cyrus-imapd-2.3.16/lib/imapoptions	2009-12-21 13:25:22.000000000 +0200

+++ cyrus-imapd-2.3.16-autosieve.uncompiled/lib/imapoptions	2009-12-23 01:08:09.000000000 +0200

@@ -1043,6 +1043,15 @@

 /* If enabled, lmtpd will look for Sieve scripts in user's home

    directories: ~user/.sieve. */

+{ "anysievefolder", 0, SWITCH }

+/* It must be "yes" in order to permit the autocreation of any INBOX subfolder 

+   requested by a sieve filter, through the "fileinto" action. (default = no) */

+

+{ "autosievefolders", NULL, STRING }

+/* It is a "|" separated list of subfolders of INBOX that will be automatically created, 

+   if requested by a sieve filter, through the "fileinto" action. (default = null)

+   i.e. autosievefolders: Junk | Spam */

+

 { "singleinstancestore", 1, SWITCH }

 /* If enabled, imapd, lmtpd and nntpd attempt to only write one copy

    of a message per partition and create hard links, resulting in a