Mail fixes and libetpan updated

38 files changed, 698 insertions, 35 deletions

diff --git a/kmicromail/libetpan/generic/imapdriver.c b/kmicromail/libetpan/generic/imapdriver.c
index 0d63319..b3e5982 100644
--- a/kmicromail/libetpan/generic/imapdriver.c
+++ b/kmicromail/libetpan/generic/imapdriver.c
@@ -99,8 +99,10 @@ static int imapdriver_lsub_folders(mailsession * session, char * mb,
 static int imapdriver_subscribe_folder(mailsession * session, char * mb);
 static int imapdriver_unsubscribe_folder(mailsession * session, char * mb);
 static int imapdriver_append_message(mailsession * session,
                                      char * message, size_t size);
+static int imapdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
 static int imapdriver_copy_message(mailsession * session,
                                    uint32_t num, char * mb);
 
 static int imapdriver_get_messages_list(mailsession * session,
@@ -156,8 +158,9 @@ static mailsession_driver local_imap_session_driver = {
   .sess_subscribe_folder = imapdriver_subscribe_folder,
   .sess_unsubscribe_folder = imapdriver_unsubscribe_folder,
 
   .sess_append_message = imapdriver_append_message,
+  .sess_append_message_flags = imapdriver_append_message_flags,
   .sess_copy_message = imapdriver_copy_message,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = imapdriver_get_messages_list,
@@ -770,8 +773,33 @@ static int imapdriver_append_message(mailsession * session,
   
   return imap_error_to_mail_error(r);
 }
 
+static int imapdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  struct mailimap_flag_list * flag_list;
+  int r;
+  
+  if (flags != NULL) {
+    r = imap_flags_to_imap_flags(flags, &flag_list);
+    if (r != MAIL_NO_ERROR)
+      return r;
+  }
+  else {
+    flag_list = NULL;
+  }
+  
+  r = mailimap_append(get_imap_session(session),
+      get_data(session)->imap_mailbox,
+      flag_list, NULL, message, size);
+  
+  if (flag_list != NULL)
+    mailimap_flag_list_free(flag_list);
+  
+  return imap_error_to_mail_error(r);
+}
+
 static int imapdriver_copy_message(mailsession * session,
                                    uint32_t num, char * mb)
 {
   int r;
diff --git a/kmicromail/libetpan/generic/imapdriver_cached.c b/kmicromail/libetpan/generic/imapdriver_cached.c
index e6af8e8..04044ae 100644
--- a/kmicromail/libetpan/generic/imapdriver_cached.c
+++ b/kmicromail/libetpan/generic/imapdriver_cached.c
@@ -104,8 +104,10 @@ static int imapdriver_cached_subscribe_folder(mailsession * session,
 static int imapdriver_cached_unsubscribe_folder(mailsession * session,
                                                 char * mb);
 static int imapdriver_cached_append_message(mailsession * session,
                                             char * message, size_t size);
+static int imapdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
 static int imapdriver_cached_copy_message(mailsession * session,
                                           uint32_t num, char * mb);
 
 static int imapdriver_cached_get_messages_list(mailsession * session,
@@ -164,8 +166,9 @@ static mailsession_driver local_imap_cached_session_driver = {
   .sess_subscribe_folder = imapdriver_cached_subscribe_folder,
   .sess_unsubscribe_folder = imapdriver_cached_unsubscribe_folder,
 
   .sess_append_message = imapdriver_cached_append_message,
+  .sess_append_message_flags = imapdriver_cached_append_message_flags,
   .sess_copy_message = imapdriver_cached_copy_message,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = imapdriver_cached_get_messages_list,
@@ -775,8 +778,21 @@ static int imapdriver_cached_append_message(mailsession * session,
   
   return r;
 }
 
+static int imapdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  int r;
+  
+  r = mailsession_append_message_flags(get_ancestor(session),
+      message, size, flags);
+  
+  check_for_uid_cache(session);
+  
+  return r;
+}
+
 static int imapdriver_cached_copy_message(mailsession * session,
                                           uint32_t num, char * mb)
 {
   int r;
diff --git a/kmicromail/libetpan/generic/imapdriver_cached_message.c b/kmicromail/libetpan/generic/imapdriver_cached_message.c
index c0542a3..c4357a3 100644
--- a/kmicromail/libetpan/generic/imapdriver_cached_message.c
+++ b/kmicromail/libetpan/generic/imapdriver_cached_message.c
@@ -211,9 +211,9 @@ static void generate_key_from_mime_section(char * key, size_t size,
  free_str:
   mmap_string_free(gstr);
  free_section:
   mailmime_section_free(part);
- err:
+ err:;
 }
 
 static void generate_key_from_section(char * key, size_t size,
                                       mailmessage * msg_info,
diff --git a/kmicromail/libetpan/generic/imapdriver_tools.c b/kmicromail/libetpan/generic/imapdriver_tools.c
index 3d737f3..de4008f 100644
--- a/kmicromail/libetpan/generic/imapdriver_tools.c
+++ b/kmicromail/libetpan/generic/imapdriver_tools.c
@@ -3106,14 +3106,13 @@ static int imap_flags_to_flags(struct mailimap_msg_att_dynamic * att_dyn,
  err:
   return MAIL_ERROR_MEMORY;
 }
 
-static int flags_to_imap_flags(struct mail_flags * flags,
-                               struct mailimap_store_att_flags ** result)
+int imap_flags_to_imap_flags(struct mail_flags * flags,
+    struct mailimap_flag_list ** result)
 {
   struct mailimap_flag * flag;
   struct mailimap_flag_list * flag_list;
-  struct mailimap_store_att_flags * att_flags;
   int res;
   clistiter * cur;
   int r;
   
@@ -3239,8 +3238,33 @@ static int flags_to_imap_flags(struct mail_flags * flags,
       }
     }
   }
 
+  * result = flag_list;
+  
+  return MAIL_NO_ERROR;
+  
+ free_flag_list: 
+  mailimap_flag_list_free(flag_list);
+ err:
+  return res;
+}
+
+static int flags_to_imap_flags(struct mail_flags * flags,
+                               struct mailimap_store_att_flags ** result)
+{
+  struct mailimap_flag_list * flag_list;
+  struct mailimap_store_att_flags * att_flags;
+  int res;
+  int r;
+  
+  r = imap_flags_to_imap_flags(flags,
+      &flag_list);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+  
   att_flags = mailimap_store_att_flags_new_set_flags_silent(flag_list);
   if (att_flags == NULL) {
     res = MAIL_ERROR_MEMORY;
     goto free_flag_list;
diff --git a/kmicromail/libetpan/generic/imapdriver_tools.h b/kmicromail/libetpan/generic/imapdriver_tools.h
index 6582a31..59c993e 100644
--- a/kmicromail/libetpan/generic/imapdriver_tools.h
+++ b/kmicromail/libetpan/generic/imapdriver_tools.h
@@ -105,8 +105,11 @@ imapdriver_write_cached_envelope(struct mail_cache_db * cache_db,
     MMAPString * mmapstr,
     mailsession * session, mailmessage * msg,
     struct mailimf_fields * fields);
 
+int imap_flags_to_imap_flags(struct mail_flags * flags,
+    struct mailimap_flag_list ** result);
+
 #ifdef __cplusplus
 }
 #endif
 
diff --git a/kmicromail/libetpan/generic/imapstorage.c b/kmicromail/libetpan/generic/imapstorage.c
index e8683d8..972b6dd 100644
--- a/kmicromail/libetpan/generic/imapstorage.c
+++ b/kmicromail/libetpan/generic/imapstorage.c
@@ -70,9 +70,9 @@ int imap_mailstorage_init(struct mailstorage * storage,
     int imap_cached, char * imap_cache_directory)
 {
   struct imap_mailstorage * imap_storage;
 
-  imap_storage = malloc(sizeof(struct imap_mailstorage));
+  imap_storage = malloc(sizeof(* imap_storage));
   if (imap_storage == NULL)
     goto err;
 
   imap_storage->imap_servername = strdup(imap_servername);
diff --git a/kmicromail/libetpan/generic/maildirdriver.c b/kmicromail/libetpan/generic/maildirdriver.c
index 7830ceb..5f21422 100644
--- a/kmicromail/libetpan/generic/maildirdriver.c
+++ b/kmicromail/libetpan/generic/maildirdriver.c
@@ -84,8 +84,11 @@ static int messages_number(mailsession * session, char * mb,
 
 static int append_message(mailsession * session,
     char * message, size_t size);
 
+static int append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int get_messages_list(mailsession * session,
     struct mailmessage_list ** result);
 
 static int get_envelopes_list(mailsession * session,
@@ -128,8 +131,9 @@ static mailsession_driver local_maildir_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = append_message,
+  .sess_append_message_flags = append_message_flags,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = get_messages_list,
@@ -354,8 +358,9 @@ static int recent_number(mailsession * session, char * mb,
 
 static int append_message(mailsession * session,
     char * message, size_t size)
 {
+#if 0
   struct maildir * md;
   int r;
 
   md = get_maildir_session(session);
@@ -366,8 +371,54 @@ static int append_message(mailsession * session,
   if (r != MAILDIR_NO_ERROR)
     return maildirdriver_maildir_error_to_mail_error(r);
   
   return MAIL_NO_ERROR;
+#endif
+  
+  return append_message_flags(session, message, size, NULL);
+}
+
+static int append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  struct maildir * md;
+  int r;
+  char uid[PATH_MAX];
+  struct maildir_msg * md_msg;
+  chashdatum key;
+  chashdatum value;
+  uint32_t md_flags;
+  
+  md = get_maildir_session(session);
+  if (md == NULL)
+    return MAIL_ERROR_BAD_STATE;
+  
+  r = maildir_message_add_uid(md, message, size,
+      uid, sizeof(uid));
+  if (r != MAILDIR_NO_ERROR)
+    return maildirdriver_maildir_error_to_mail_error(r);
+  
+  if (flags == NULL)
+    goto exit;
+  
+  key.data = uid;
+  key.len = strlen(uid);
+  r = chash_get(md->mdir_msg_hash, &key, &value);
+  if (r < 0)
+    goto exit;
+  
+  md_msg = value.data;
+  
+  md_flags = maildirdriver_flags_to_maildir_flags(flags->fl_flags);
+  
+  r = maildir_message_change_flags(md, uid, md_flags);
+  if (r != MAILDIR_NO_ERROR)
+    goto exit;
+  
+  return MAIL_NO_ERROR;
+  
+ exit:
+  return MAIL_NO_ERROR;
 }
 
 static int get_messages_list(mailsession * session,
     struct mailmessage_list ** result)
diff --git a/kmicromail/libetpan/generic/maildirdriver_cached.c b/kmicromail/libetpan/generic/maildirdriver_cached.c
index 503d1c9..8a5e206 100644
--- a/kmicromail/libetpan/generic/maildirdriver_cached.c
+++ b/kmicromail/libetpan/generic/maildirdriver_cached.c
@@ -85,8 +85,11 @@ static int messages_number(mailsession * session, char * mb,
 
 static int append_message(mailsession * session,
     char * message, size_t size);
 
+static int append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int get_messages_list(mailsession * session,
     struct mailmessage_list ** result);
 
 static int get_envelopes_list(mailsession * session,
@@ -132,8 +135,9 @@ static mailsession_driver local_maildir_cached_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = append_message,
+  .sess_append_message_flags = append_message_flags,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = get_messages_list,
@@ -453,11 +457,85 @@ static int recent_number(mailsession * session, char * mb,
 
 static int append_message(mailsession * session,
     char * message, size_t size)
 {
+#if 0
   return mailsession_append_message(get_ancestor(session), message, size);
+#endif
+  return append_message_flags(session, message, size, NULL);
 }
 
+static int append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  struct maildir * md;
+  int r;
+  char uid[PATH_MAX];
+  struct maildir_msg * md_msg;
+  chashdatum key;
+  chashdatum value;
+  uint32_t md_flags;
+  struct mail_cache_db * cache_db_flags;
+  char filename_flags[PATH_MAX];
+  MMAPString * mmapstr;
+  struct maildir_cached_session_state_data * data;
+  
+  md = get_maildir_session(session);
+  if (md == NULL)
+    return MAIL_ERROR_BAD_STATE;
+  
+  r = maildir_message_add_uid(md, message, size,
+      uid, sizeof(uid));
+  if (r != MAILDIR_NO_ERROR)
+    return maildirdriver_maildir_error_to_mail_error(r);
+  
+  if (flags == NULL)
+    goto exit;
+  
+  data = get_cached_data(session);
+  
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->md_flags_directory, MAIL_DIR_SEPARATOR, data->md_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+  
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0)
+    goto exit;
+  
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL)
+    goto close_db_flags;
+  
+  r = write_cached_flags(cache_db_flags, mmapstr,
+      uid, flags);
+  
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  if (r != MAIL_NO_ERROR)
+    goto exit;
+  
+  key.data = uid;
+  key.len = strlen(uid);
+  r = chash_get(md->mdir_msg_hash, &key, &value);
+  if (r < 0)
+    goto exit;
+  
+  md_msg = value.data;
+  
+  md_flags = maildirdriver_flags_to_maildir_flags(flags->fl_flags);
+  
+  r = maildir_message_change_flags(md, uid, md_flags);
+  if (r != MAILDIR_NO_ERROR)
+    goto exit;
+  
+  return MAIL_NO_ERROR;
+  
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ exit:
+  return MAIL_NO_ERROR;
+}
 
 #define UID_NAME "uid.db"
 
 static int uid_clean_up(struct mail_cache_db * uid_db,
diff --git a/kmicromail/libetpan/generic/maildirdriver_cached_message.c b/kmicromail/libetpan/generic/maildirdriver_cached_message.c
index 51866aa..34de351 100644
--- a/kmicromail/libetpan/generic/maildirdriver_cached_message.c
+++ b/kmicromail/libetpan/generic/maildirdriver_cached_message.c
@@ -38,8 +38,10 @@
 #include "mailmessage_tools.h"
 #include "maildirdriver.h"
 #include "maildir.h"
 #include "generic_cache.h"
+#include "mail_cache_db.h"
+#include "maildirdriver_tools.h"
 
 #include <unistd.h>
 #include <sys/mman.h>
 #include <sys/types.h>
@@ -47,8 +49,11 @@
 #include <fcntl.h>
 #include <string.h>
 #include <stdlib.h>
 
+static int get_flags(mailmessage * msg_info,
+    struct mail_flags ** result);
+
 static int prefetch(mailmessage * msg_info);
 
 static void prefetch_free(struct generic_message_t * msg);
 
@@ -77,9 +82,9 @@ static mailmessage_driver local_maildir_cached_message_driver = {
   .msg_fetch_section_mime = mailmessage_generic_fetch_section_mime,
   .msg_fetch_section_body = mailmessage_generic_fetch_section_body,
   .msg_fetch_envelope = mailmessage_generic_fetch_envelope,
 
-  .msg_get_flags = NULL,
+  .msg_get_flags = get_flags,
 };
 
 mailmessage_driver * maildir_cached_message_driver =
 &local_maildir_cached_message_driver;
@@ -245,4 +250,85 @@ static void check(mailmessage * msg_info)
     r = mail_flags_store_set(get_cached_session_data(msg_info)->md_flags_store, msg_info);
     /* ignore errors */
   }
 }
+
+#define FLAGS_NAME "flags.db"
+
+static int get_flags(mailmessage * msg_info,
+    struct mail_flags ** result)
+{
+  struct mail_cache_db * cache_db_flags;
+  chashdatum key;
+  chashdatum value;
+  struct maildir * md;
+  struct mail_flags * flags;
+  struct maildir_cached_session_state_data * data;
+  struct maildir_msg * md_msg;
+  int r;
+  uint32_t driver_flags;
+  char filename_flags[PATH_MAX];
+  char keyname[PATH_MAX];
+  MMAPString * mmapstr;
+  
+  if (msg_info->msg_flags != NULL) {
+    * result = msg_info->msg_flags;
+    return MAIL_NO_ERROR;
+  }
+  
+  data = get_cached_session_data(msg_info);
+  flags = mail_flags_store_get(data->md_flags_store,
+      msg_info->msg_index);
+  if (flags != NULL) {
+    msg_info->msg_flags = flags;
+    * result = msg_info->msg_flags;
+    return MAIL_NO_ERROR;
+  }
+  
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->md_flags_directory, MAIL_DIR_SEPARATOR, data->md_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+  
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0)
+    return MAIL_ERROR_FILE;
+  
+  snprintf(keyname, PATH_MAX, "%s-flags", msg_info->msg_uid);
+  
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL) {
+    mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+    return MAIL_ERROR_MEMORY;
+  }
+  
+  r = generic_cache_flags_read(cache_db_flags, mmapstr, keyname, &flags);
+  mmap_string_free(mmapstr);
+  
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  if (r != MAIL_NO_ERROR) {
+    flags = mail_flags_new_empty();
+    if (flags == NULL)
+      return MAIL_ERROR_MEMORY;
+  }
+  
+  md = get_maildir_session(msg_info);
+  if (md == NULL)
+    return MAIL_ERROR_BAD_STATE;
+  
+  key.data = msg_info->msg_uid;
+  key.len = strlen(msg_info->msg_uid);
+  r = chash_get(md->mdir_msg_hash, &key, &value);
+  if (r < 0)
+    return MAIL_ERROR_MSG_NOT_FOUND;
+  
+  md_msg = value.data;
+  
+  driver_flags = maildirdriver_maildir_flags_to_flags(md_msg->msg_flags);
+  
+  flags->fl_flags = driver_flags;
+  msg_info->msg_flags = flags;
+  
+  * result = msg_info->msg_flags;
+  
+  return MAIL_NO_ERROR;
+}
diff --git a/kmicromail/libetpan/generic/maildirdriver_message.c b/kmicromail/libetpan/generic/maildirdriver_message.c
index 7cf9dd1..613fc39 100644
--- a/kmicromail/libetpan/generic/maildirdriver_message.c
+++ b/kmicromail/libetpan/generic/maildirdriver_message.c
@@ -33,8 +33,9 @@
  * $Id$
  */
 
 #include "maildirdriver_message.h"
+#include "maildirdriver_tools.h"
 
 #include "mailmessage_tools.h"
 #include "maildirdriver.h"
 #include "maildir.h"
@@ -47,8 +48,11 @@
 #include <fcntl.h>
 #include <string.h>
 #include <stdlib.h>
 
+static int get_flags(mailmessage * msg_info,
+    struct mail_flags ** result);
+
 static int prefetch(mailmessage * msg_info);
 
 static void prefetch_free(struct generic_message_t * msg);
 
@@ -77,9 +81,9 @@ static mailmessage_driver local_maildir_message_driver = {
   .msg_fetch_section_mime = mailmessage_generic_fetch_section_mime,
   .msg_fetch_section_body = mailmessage_generic_fetch_section_body,
   .msg_fetch_envelope = mailmessage_generic_fetch_envelope,
 
-  .msg_get_flags = NULL,
+  .msg_get_flags = get_flags,
 };
 
 mailmessage_driver * maildir_message_driver = &local_maildir_message_driver;
 
@@ -196,4 +200,56 @@ static void check(mailmessage * msg_info)
         msg_info);
     /* ignore errors */
   }
 }
+
+static int get_flags(mailmessage * msg_info,
+    struct mail_flags ** result)
+{
+  chashdatum key;
+  chashdatum value;
+  struct maildir * md;
+  struct mail_flags * flags;
+  struct maildir_session_state_data * data;
+  struct maildir_msg * md_msg;
+  int r;
+  uint32_t driver_flags;
+  clist * ext;
+  
+  if (msg_info->msg_flags != NULL) {
+    * result = msg_info->msg_flags;
+    return MAIL_NO_ERROR;
+  }
+  
+  data = get_session_data(msg_info);
+  flags = mail_flags_store_get(data->md_flags_store,
+      msg_info->msg_index);
+  if (flags != NULL) {
+    msg_info->msg_flags = flags;
+    * result = msg_info->msg_flags;
+    return MAIL_NO_ERROR;
+  }
+  
+  md = get_maildir_session(msg_info);
+  if (md == NULL)
+    return MAIL_ERROR_BAD_STATE;
+  
+  key.data = msg_info->msg_uid;
+  key.len = strlen(msg_info->msg_uid);
+  r = chash_get(md->mdir_msg_hash, &key, &value);
+  if (r < 0)
+    return MAIL_ERROR_MSG_NOT_FOUND;
+  
+  md_msg = value.data;
+  
+  driver_flags = maildirdriver_maildir_flags_to_flags(md_msg->msg_flags);
+  
+  ext = clist_new();
+  if (ext == NULL)
+    return MAIL_ERROR_MEMORY;
+  
+  msg_info->msg_flags = mail_flags_new(driver_flags, ext);
+  
+  * result = msg_info->msg_flags;
+  
+  return MAIL_NO_ERROR;
+}
diff --git a/kmicromail/libetpan/generic/maildirstorage.c b/kmicromail/libetpan/generic/maildirstorage.c
index 7e6b461..e37f591 100644
--- a/kmicromail/libetpan/generic/maildirstorage.c
+++ b/kmicromail/libetpan/generic/maildirstorage.c
@@ -32,8 +32,9 @@
 /*
  * $Id$
  */
 
+#include "maildirstorage.h"
 #include "mailstorage.h"
 
 #include "mail.h"
 #include "mailmessage.h"
@@ -64,9 +65,9 @@ int maildir_mailstorage_init(struct mailstorage * storage,
     char * md_cache_directory, char * md_flags_directory)
 {
   struct maildir_mailstorage * maildir_storage;
 
-  maildir_storage = malloc(sizeof(struct maildir_mailstorage));
+  maildir_storage = malloc(sizeof(* maildir_storage));
   if (maildir_storage == NULL)
     goto err;
 
   maildir_storage->md_pathname = strdup(md_pathname);
diff --git a/kmicromail/libetpan/generic/maildirstorage.h b/kmicromail/libetpan/generic/maildirstorage.h
index d17ea2c..73d7b20 100644
--- a/kmicromail/libetpan/generic/maildirstorage.h
+++ b/kmicromail/libetpan/generic/maildirstorage.h
@@ -43,9 +43,9 @@
 extern "C" {
 #endif
 
 /*
-  maildir_mailstorage_init is the constructor for a mbox storage.
+  maildir_mailstorage_init is the constructor for a maildir storage.
 
   @param storage this is the storage to initialize.
   
   @param pathname is the directory that contains the mailbox.
diff --git a/kmicromail/libetpan/generic/maildriver.c b/kmicromail/libetpan/generic/maildriver.c
index 01e3e34..1fc478a 100644
--- a/kmicromail/libetpan/generic/maildriver.c
+++ b/kmicromail/libetpan/generic/maildriver.c
@@ -281,8 +281,18 @@ int mailsession_append_message(mailsession * session,
 
   return session->sess_driver->sess_append_message(session, message, size);
 }
 
+int mailsession_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  if (session->sess_driver->sess_append_message_flags == NULL)
+    return MAIL_ERROR_NOT_IMPLEMENTED;
+
+  return session->sess_driver->sess_append_message_flags(session,
+      message, size, flags);
+}
+
 int mailsession_copy_message(mailsession * session,
                              uint32_t num, char * mb)
 {
   if (session->sess_driver->sess_copy_message == NULL)
diff --git a/kmicromail/libetpan/generic/maildriver.h b/kmicromail/libetpan/generic/maildriver.h
index 7da9aea..c773190 100644
--- a/kmicromail/libetpan/generic/maildriver.h
+++ b/kmicromail/libetpan/generic/maildriver.h
@@ -399,8 +399,11 @@ int mailsession_unsubscribe_folder(mailsession * session, char * mb);
 
 int mailsession_append_message(mailsession * session,
                                char * message, size_t size);
 
+int mailsession_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 /*
   NOTE: some drivers does not implement this
 
   mailsession_copy_message copies a message whose number is given to
diff --git a/kmicromail/libetpan/generic/maildriver_types.h b/kmicromail/libetpan/generic/maildriver_types.h
index 3ff9440..9eab4d6 100644
--- a/kmicromail/libetpan/generic/maildriver_types.h
+++ b/kmicromail/libetpan/generic/maildriver_types.h
@@ -506,8 +506,10 @@ struct mailsession_driver {
   /* messages operations */
 
   int (* sess_append_message)(mailsession * session,
       char * message, size_t size);
+  int (* sess_append_message_flags)(mailsession * session,
+      char * message, size_t size, struct mail_flags * flags);
   int (* sess_copy_message)(mailsession * session,
       uint32_t num, char * mb);
   int (* sess_move_message)(mailsession * session,
       uint32_t num, char * mb);
diff --git a/kmicromail/libetpan/generic/mailfolder.c b/kmicromail/libetpan/generic/mailfolder.c
index 2ddc37d..89ba891 100644
--- a/kmicromail/libetpan/generic/mailfolder.c
+++ b/kmicromail/libetpan/generic/mailfolder.c
@@ -31,8 +31,15 @@ int mailfolder_append_message(struct mailfolder * folder,
 {
   return mailsession_append_message(folder->fld_session, message, size);
 }
 
+int mailfolder_append_message_flags(struct mailfolder * folder,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return mailsession_append_message_flags(folder->fld_session, message,
+      size, flags);
+}
+
 int mailfolder_get_messages_list(struct mailfolder * folder,
     struct mailmessage_list ** result)
 {
   int r;
diff --git a/kmicromail/libetpan/generic/mailfolder.h b/kmicromail/libetpan/generic/mailfolder.h
index 3ecad23..ff53470 100644
--- a/kmicromail/libetpan/generic/mailfolder.h
+++ b/kmicromail/libetpan/generic/mailfolder.h
@@ -16,8 +16,11 @@ int mailfolder_status(struct mailfolder * folder,
 
 int mailfolder_append_message(struct mailfolder * folder,
     char * message, size_t size);
 
+int mailfolder_append_message_flags(struct mailfolder * folder,
+    char * message, size_t size, struct mail_flags * flags);
+
 int mailfolder_get_messages_list(struct mailfolder * folder,
     struct mailmessage_list ** result);
 
 int mailfolder_get_envelopes_list(struct mailfolder * folder,
diff --git a/kmicromail/libetpan/generic/mailstorage.c b/kmicromail/libetpan/generic/mailstorage.c
index 25e561e..dc91744 100644
--- a/kmicromail/libetpan/generic/mailstorage.c
+++ b/kmicromail/libetpan/generic/mailstorage.c
@@ -322,8 +322,15 @@ void mailstorage_disconnect(struct mailstorage * storage)
   mailsession_free(storage->sto_session);
   storage->sto_session = NULL;
 }
 
+
+int mailstorage_noop(struct mailstorage * storage)
+{
+  return mailsession_noop(storage->sto_session);
+}
+
+
 static int mailstorage_get_folder(struct mailstorage * storage,
     char * pathname, mailsession ** result)
 {
   if (storage->sto_driver->sto_get_folder_session == NULL)
diff --git a/kmicromail/libetpan/generic/mailstorage.h b/kmicromail/libetpan/generic/mailstorage.h
index d56aef1..4c57883 100644
--- a/kmicromail/libetpan/generic/mailstorage.h
+++ b/kmicromail/libetpan/generic/mailstorage.h
@@ -70,8 +70,10 @@ void mailstorage_free(struct mailstorage * storage);
 int mailstorage_connect(struct mailstorage * storage);
 
 void mailstorage_disconnect(struct mailstorage * storage);
 
+int mailstorage_noop(struct mailstorage * storage);
+
 
 /* folder */
 
 struct mailfolder * mailfolder_new(struct mailstorage * fld_storage,
@@ -87,9 +89,8 @@ int mailfolder_detach_parent(struct mailfolder * folder);
 int mailfolder_connect(struct mailfolder * folder);
 
 void mailfolder_disconnect(struct mailfolder * folder);
 
-
 #ifdef __cplusplus
 }
 #endif
 
diff --git a/kmicromail/libetpan/generic/mboxdriver.c b/kmicromail/libetpan/generic/mboxdriver.c
index fa3e2ea..c19a668 100644
--- a/kmicromail/libetpan/generic/mboxdriver.c
+++ b/kmicromail/libetpan/generic/mboxdriver.c
@@ -76,8 +76,11 @@ static int mboxdriver_messages_number(mailsession * session, char * mb,
 
 static int mboxdriver_append_message(mailsession * session,
                                      char * message, size_t size);
 
+static int mboxdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int mboxdriver_get_messages_list(mailsession * session,
                                         struct mailmessage_list ** result);
 
 static int
@@ -125,8 +128,9 @@ static mailsession_driver local_mbox_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = mboxdriver_append_message,
+  .sess_append_message_flags = mboxdriver_append_message_flags,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = mboxdriver_get_messages_list,
@@ -343,8 +347,14 @@ static int mboxdriver_append_message(mailsession * session,
     return mboxdriver_mbox_error_to_mail_error(r);
   }
 }
 
+static int mboxdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return mboxdriver_append_message(session, message, size);
+}
+
 static int mboxdriver_get_messages_list(mailsession * session,
                                         struct mailmessage_list ** result)
 {
   struct mailmbox_folder * folder;
diff --git a/kmicromail/libetpan/generic/mboxdriver_cached.c b/kmicromail/libetpan/generic/mboxdriver_cached.c
index 07871fa..3af7fb9 100644
--- a/kmicromail/libetpan/generic/mboxdriver_cached.c
+++ b/kmicromail/libetpan/generic/mboxdriver_cached.c
@@ -85,8 +85,11 @@ static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
 
 static int mboxdriver_cached_append_message(mailsession * session,
                                             char * message, size_t size);
 
+static int mboxdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int
 mboxdriver_cached_get_messages_list(mailsession * session,
                                     struct mailmessage_list ** result);
 
@@ -136,8 +139,10 @@ static mailsession_driver local_mbox_cached_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = mboxdriver_cached_append_message,
+  .sess_append_message_flags = mboxdriver_cached_append_message_flags,
+  
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = mboxdriver_cached_get_messages_list,
@@ -905,9 +910,86 @@ static int mboxdriver_cached_unseen_number(mailsession * session, char * mb,
 
 static int mboxdriver_cached_append_message(mailsession * session,
                                             char * message, size_t size)
 {
-  return mailsession_append_message(get_ancestor(session), message, size);
+  return mboxdriver_cached_append_message_flags(session,
+      message, size, NULL);
+}
+
+static int mboxdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  int r;
+  struct mailmbox_folder * folder;
+  struct mbox_cached_session_state_data * data;
+  unsigned int uid;
+  struct mailmbox_msg_info * msg_info;
+  chashdatum key;
+  chashdatum value;
+  struct mail_cache_db * cache_db_flags;
+  char filename_flags[PATH_MAX];
+  MMAPString * mmapstr;
+  char keyname[PATH_MAX];
+  
+  folder = get_mbox_session(session);
+  if (folder == NULL)
+    return MAIL_ERROR_APPEND;
+  
+  r = mailmbox_append_message_uid(folder, message, size, &uid);
+  
+  switch (r) {
+  case MAILMBOX_ERROR_FILE:
+    return MAIL_ERROR_DISKSPACE;
+  case MAILMBOX_NO_ERROR:
+    break;
+  default:
+    return mboxdriver_mbox_error_to_mail_error(r);
+  }
+  
+  /* could store in flags store instead */
+  
+  if (flags == NULL)
+    goto exit;
+  
+  key.data = &uid;
+  key.len = sizeof(uid); 
+  r = chash_get(folder->mb_hash, &key, &value);
+  if (r < 0)
+    goto exit;
+  
+  msg_info = value.data;
+  
+  data = get_cached_data(session);
+  
+  snprintf(filename_flags, PATH_MAX, "%s%c%s%c%s",
+      data->mbox_flags_directory, MAIL_DIR_SEPARATOR, data->mbox_quoted_mb,
+      MAIL_DIR_SEPARATOR, FLAGS_NAME);
+  
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0)
+    goto exit;
+  
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL)
+    goto close_db_flags;
+  
+  snprintf(keyname, PATH_MAX, "%u-%lu", uid,
+      (unsigned long) msg_info->msg_body_len);
+  
+  r = mboxdriver_write_cached_flags(cache_db_flags, mmapstr, keyname, flags);
+  
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  if (r != MAIL_NO_ERROR)
+    goto exit;
+  
+  return MAIL_NO_ERROR;
+  
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ exit:
+  return MAIL_NO_ERROR;
 }
 
 static int
 mboxdriver_cached_get_messages_list(mailsession * session,
@@ -959,9 +1041,10 @@ get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
   }
   
   info = data.data;
   
-  snprintf(keyname, PATH_MAX, "%u-%u-envelope", num, info->msg_body_len);
+  snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
+      (unsigned long) info->msg_body_len);
 
   r = generic_cache_fields_read(cache_db, mmapstr, keyname, &fields);
   if (r != MAIL_NO_ERROR) {
     res = r;
@@ -1005,9 +1088,10 @@ write_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
   }
   
   info = data.data;
   
-  snprintf(keyname, PATH_MAX, "%u-%u-envelope", num, info->msg_body_len);
+  snprintf(keyname, PATH_MAX, "%u-%lu-envelope", num,
+      (unsigned long) info->msg_body_len);
 
   r = generic_cache_fields_write(cache_db, mmapstr, keyname, fields);
   if (r != MAIL_NO_ERROR) {
     res = r;
diff --git a/kmicromail/libetpan/generic/mboxdriver_cached_message.c b/kmicromail/libetpan/generic/mboxdriver_cached_message.c
index 6d92b22..828396b 100644
--- a/kmicromail/libetpan/generic/mboxdriver_cached_message.c
+++ b/kmicromail/libetpan/generic/mboxdriver_cached_message.c
@@ -181,9 +181,10 @@ static int mbox_initialize(mailmessage * msg_info)
   }
   
   info = (struct mailmbox_msg_info *) data.data;
   
-  snprintf(static_uid, PATH_MAX, "%u-%u", msg_info->msg_index, info->msg_body_len);
+  snprintf(static_uid, PATH_MAX, "%u-%lu",
+      msg_info->msg_index, (unsigned long) info->msg_body_len);
   uid = strdup(static_uid);
   if (uid == NULL) {
     res = MAIL_ERROR_MEMORY;
     goto err;
diff --git a/kmicromail/libetpan/generic/mboxdriver_message.c b/kmicromail/libetpan/generic/mboxdriver_message.c
index da9a65d..6922625 100644
--- a/kmicromail/libetpan/generic/mboxdriver_message.c
+++ b/kmicromail/libetpan/generic/mboxdriver_message.c
@@ -32,9 +32,9 @@
 /*
  * $Id$
  */
 
-#include "mhdriver_message.h"
+#include "mboxdriver_message.h"
 
 #include "mailmessage_tools.h"
 #include "mboxdriver_tools.h"
 #include "mboxdriver.h"
@@ -155,10 +155,10 @@ static int mbox_initialize(mailmessage * msg_info)
   }
   
   info = data.data;
   
-  snprintf(static_uid, PATH_MAX, "%u-%u",
-      msg_info->msg_index, info->msg_body_len);
+  snprintf(static_uid, PATH_MAX, "%u-%lu",
+      msg_info->msg_index, (unsigned long) info->msg_body_len);
   uid = strdup(static_uid);
   if (uid == NULL) {
     res = MAIL_ERROR_MEMORY;
     goto err;
diff --git a/kmicromail/libetpan/generic/mboxdriver_tools.c b/kmicromail/libetpan/generic/mboxdriver_tools.c
index 1e27798..252a20b 100644
--- a/kmicromail/libetpan/generic/mboxdriver_tools.c
+++ b/kmicromail/libetpan/generic/mboxdriver_tools.c
@@ -216,9 +216,10 @@ mboxdriver_get_cached_flags(struct mail_cache_db * cache_db,
   }
   
   info = data.data;
 
-  snprintf(keyname, PATH_MAX, "%u-%u-flags", num, info->msg_body_len);
+  snprintf(keyname, PATH_MAX, "%u-%lu-flags", num,
+      (unsigned long) info->msg_body_len);
 
   r = generic_cache_flags_read(cache_db, mmapstr, keyname, &flags);
   if (r != MAIL_NO_ERROR) {
     res = r;
diff --git a/kmicromail/libetpan/generic/mboxstorage.c b/kmicromail/libetpan/generic/mboxstorage.c
index 0a7dc93..4b55b2b 100644
--- a/kmicromail/libetpan/generic/mboxstorage.c
+++ b/kmicromail/libetpan/generic/mboxstorage.c
@@ -64,9 +64,9 @@ int mbox_mailstorage_init(struct mailstorage * storage,
     char * mbox_cache_directory, char * mbox_flags_directory)
 {
   struct mbox_mailstorage * mbox_storage;
 
-  mbox_storage = malloc(sizeof(struct mbox_mailstorage));
+  mbox_storage = malloc(sizeof(* mbox_storage));
   if (mbox_storage == NULL)
     goto err;
 
   mbox_storage->mbox_pathname = strdup(mbox_pathname);
diff --git a/kmicromail/libetpan/generic/mhdriver.c b/kmicromail/libetpan/generic/mhdriver.c
index af38d27..05a6a4f 100644
--- a/kmicromail/libetpan/generic/mhdriver.c
+++ b/kmicromail/libetpan/generic/mhdriver.c
@@ -88,8 +88,10 @@ static int mhdriver_subscribe_folder(mailsession * session, char * mb);
 static int mhdriver_unsubscribe_folder(mailsession * session, char * mb);
 
 static int mhdriver_append_message(mailsession * session,
                                    char * message, size_t size);
+static int mhdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
 static int mhdriver_copy_message(mailsession * session,
                                  uint32_t num, char * mb);
 
 static int mhdriver_remove_message(mailsession * session, uint32_t num);
@@ -139,8 +141,9 @@ static mailsession_driver local_mh_session_driver = {
   .sess_subscribe_folder = mhdriver_subscribe_folder,
   .sess_unsubscribe_folder = mhdriver_unsubscribe_folder,
 
   .sess_append_message = mhdriver_append_message,
+  .sess_append_message_flags = mhdriver_append_message_flags,
   .sess_copy_message = mhdriver_copy_message,
   .sess_move_message = mhdriver_move_message,
 
   .sess_get_messages_list = mhdriver_get_messages_list,
@@ -683,8 +686,14 @@ static int mhdriver_append_message(mailsession * session,
     return mhdriver_mh_error_to_mail_error(r);
   }
 }
 
+static int mhdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return mhdriver_append_message(session, message, size);
+}
+
 static int mhdriver_copy_message(mailsession * session,
                                  uint32_t num, char * mb)
 {
   int fd;
diff --git a/kmicromail/libetpan/generic/mhdriver_cached.c b/kmicromail/libetpan/generic/mhdriver_cached.c
index 5c35089..04aa523 100644
--- a/kmicromail/libetpan/generic/mhdriver_cached.c
+++ b/kmicromail/libetpan/generic/mhdriver_cached.c
@@ -107,8 +107,10 @@ static int mhdriver_cached_unsubscribe_folder(mailsession * session,
                                               char * mb);
 
 static int mhdriver_cached_append_message(mailsession * session,
                                           char * message, size_t size);
+static int mhdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
 static int mhdriver_cached_copy_message(mailsession * session,
                                         uint32_t num, char * mb);
 
 static int mhdriver_cached_remove_message(mailsession * session,
@@ -164,8 +166,9 @@ static mailsession_driver local_mh_cached_session_driver = {
   .sess_subscribe_folder = mhdriver_cached_subscribe_folder,
   .sess_unsubscribe_folder = mhdriver_cached_unsubscribe_folder,
 
   .sess_append_message = mhdriver_cached_append_message,
+  .sess_append_message_flags = mhdriver_cached_append_message_flags,
   .sess_copy_message = mhdriver_cached_copy_message,
   .sess_move_message = mhdriver_cached_move_message,
 
   .sess_get_messages_list = mhdriver_cached_get_messages_list,
@@ -882,9 +885,87 @@ static int mhdriver_cached_unsubscribe_folder(mailsession * session,
 
 static int mhdriver_cached_append_message(mailsession * session,
                                           char * message, size_t size)
 {
-  return mailsession_append_message(get_ancestor(session), message, size);
+  return mhdriver_cached_append_message_flags(session,
+      message, size, NULL);
+}
+
+static int mhdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{ 
+  int r;
+  struct mailmh_folder * folder;
+  struct mailmh_msg_info * msg_info;
+  chashdatum key;
+  chashdatum value;
+  uint32_t uid;
+  struct mh_cached_session_state_data * data;
+  char filename_flags[PATH_MAX];
+  struct mail_cache_db * cache_db_flags;
+  MMAPString * mmapstr;
+  char keyname[PATH_MAX];
+  
+  folder = get_mh_cur_folder(session);
+  if (folder == NULL)
+    return MAIL_ERROR_BAD_STATE;
+  
+  r = mailmh_folder_add_message_uid(folder,
+      message, size, &uid);
+  
+  switch (r) {
+  case MAILMH_ERROR_FILE:
+    return MAIL_ERROR_DISKSPACE;
+    
+  case MAILMH_NO_ERROR:
+    break;
+    
+  default:
+    return mhdriver_mh_error_to_mail_error(r);
+  }
+  
+  if (flags == NULL)
+    goto exit;
+  
+  key.data = &uid;
+  key.len = sizeof(uid);
+  r = chash_get(folder->fl_msgs_hash, &key, &value);
+  if (r < 0)
+    return MAIL_ERROR_CACHE_MISS;
+  
+  msg_info = value.data;
+  
+  data = get_cached_data(session);
+  
+  snprintf(filename_flags, PATH_MAX, "%s/%s/%s",
+      data->mh_flags_directory, data->mh_quoted_mb, FLAGS_NAME);
+  
+  r = mail_cache_db_open_lock(filename_flags, &cache_db_flags);
+  if (r < 0)
+    goto exit;
+  
+  mmapstr = mmap_string_new("");
+  if (mmapstr == NULL)
+    goto close_db_flags;
+  
+  snprintf(keyname, PATH_MAX, "%u-%lu-%lu-flags",
+      uid, (unsigned long) msg_info->msg_mtime,
+      (unsigned long) msg_info->msg_size);
+  
+  r = mhdriver_write_cached_flags(cache_db_flags, mmapstr, keyname, flags);
+  
+  mmap_string_free(mmapstr);
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+  
+  if (r != MAIL_NO_ERROR)
+    goto exit;
+  
+  return MAIL_NO_ERROR;
+  
+ close_db_flags:
+  mail_cache_db_close_unlock(filename_flags, cache_db_flags);
+ exit:
+  return MAIL_NO_ERROR;
 }
 
 static int mhdriver_cached_copy_message(mailsession * session,
                                         uint32_t num, char * mb)
@@ -952,10 +1033,11 @@ get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
   if (r < 0)
     return MAIL_ERROR_CACHE_MISS;
   msg_info = data.data;
   
-  snprintf(keyname, PATH_MAX, "%u-%u-%u-envelope",
-           num, (uint32_t) msg_info->msg_mtime, msg_info->msg_size);
+  snprintf(keyname, PATH_MAX, "%u-%lu-%lu-envelope",
+           num, (unsigned long) msg_info->msg_mtime,
+      (unsigned long) msg_info->msg_size);
 
   r = generic_cache_fields_read(cache_db, mmapstr, keyname, &fields);
   if (r != MAIL_NO_ERROR) {
     res = r;
@@ -997,10 +1079,11 @@ write_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
   if (r < 0)
     return MAIL_ERROR_CACHE_MISS;
   msg_info = data.data;
 
-  snprintf(keyname, PATH_MAX, "%u-%u-%u-envelope",
-           num, (uint32_t) msg_info->msg_mtime, msg_info->msg_size);
+  snprintf(keyname, PATH_MAX, "%u-%lu-%lu-envelope",
+           num, (unsigned long) msg_info->msg_mtime,
+      (unsigned long) msg_info->msg_size);
 
   r = generic_cache_fields_write(cache_db, mmapstr, keyname, fields);
   if (r != MAIL_NO_ERROR) {
     res = r;
diff --git a/kmicromail/libetpan/generic/mhdriver_cached_message.c b/kmicromail/libetpan/generic/mhdriver_cached_message.c
index f716fb9..f69868d 100644
--- a/kmicromail/libetpan/generic/mhdriver_cached_message.c
+++ b/kmicromail/libetpan/generic/mhdriver_cached_message.c
@@ -178,10 +178,10 @@ static int mh_initialize(mailmessage * msg_info)
     return MAIL_ERROR_INVAL;
   
   mh_msg_info = data.data;
 
-  snprintf(static_uid, PATH_MAX, "%u-%lu-%u", msg_info->msg_index,
-           mh_msg_info->msg_mtime, mh_msg_info->msg_size);
+  snprintf(static_uid, PATH_MAX, "%u-%lu-%lu", msg_info->msg_index,
+           mh_msg_info->msg_mtime, (unsigned long) mh_msg_info->msg_size);
   uid = strdup(static_uid);
   if (uid == NULL)
     return MAIL_ERROR_MEMORY;
 
diff --git a/kmicromail/libetpan/generic/mhdriver_message.c b/kmicromail/libetpan/generic/mhdriver_message.c
index 2c023e7..aafd2d9 100644
--- a/kmicromail/libetpan/generic/mhdriver_message.c
+++ b/kmicromail/libetpan/generic/mhdriver_message.c
@@ -143,10 +143,11 @@ static int mh_initialize(mailmessage * msg_info)
     return MAIL_ERROR_INVAL;
   
   mh_msg_info = value.data;
   
-  snprintf(static_uid, PATH_MAX, "%u-%lu-%u", msg_info->msg_index,
-           mh_msg_info->msg_mtime, mh_msg_info->msg_size);
+  snprintf(static_uid, PATH_MAX, "%u-%lu-%lu", msg_info->msg_index,
+           (unsigned long) mh_msg_info->msg_mtime,
+      (unsigned long) mh_msg_info->msg_size);
   uid = strdup(static_uid);
   if (uid == NULL)
     return MAIL_ERROR_MEMORY;
 
diff --git a/kmicromail/libetpan/generic/mhdriver_tools.c b/kmicromail/libetpan/generic/mhdriver_tools.c
index cb863fa..c15bb6d 100644
--- a/kmicromail/libetpan/generic/mhdriver_tools.c
+++ b/kmicromail/libetpan/generic/mhdriver_tools.c
@@ -368,10 +368,11 @@ mhdriver_get_cached_flags(struct mail_cache_db * cache_db,
   if (r < 0)
     return MAIL_ERROR_CACHE_MISS;
   msg_info = data.data;
   
-  snprintf(keyname, PATH_MAX, "%u-%u-%u-flags",
-           num, (uint32_t) msg_info->msg_mtime, msg_info->msg_size);
+  snprintf(keyname, PATH_MAX, "%u-%lu-%lu-flags",
+           num, (unsigned long) msg_info->msg_mtime,
+      (unsigned long) msg_info->msg_size);
 
   r = generic_cache_flags_read(cache_db, mmapstr, keyname, &flags);
   if (r != MAIL_NO_ERROR) {
     res = r;
diff --git a/kmicromail/libetpan/generic/mhstorage.c b/kmicromail/libetpan/generic/mhstorage.c
index 32fc26b..715b961 100644
--- a/kmicromail/libetpan/generic/mhstorage.c
+++ b/kmicromail/libetpan/generic/mhstorage.c
@@ -61,9 +61,9 @@ int mh_mailstorage_init(struct mailstorage * storage,
     char * mh_cache_directory, char * mh_flags_directory)
 {
   struct mh_mailstorage * mh_storage;
 
-  mh_storage = malloc(sizeof(struct mh_mailstorage));
+  mh_storage = malloc(sizeof(* mh_storage));
   if (mh_storage == NULL)
     goto err;
 
   mh_storage->mh_pathname = strdup(mh_pathname);
diff --git a/kmicromail/libetpan/generic/nntpdriver.c b/kmicromail/libetpan/generic/nntpdriver.c
index fde5f1a..1b65838 100644
--- a/kmicromail/libetpan/generic/nntpdriver.c
+++ b/kmicromail/libetpan/generic/nntpdriver.c
@@ -68,8 +68,11 @@ static int nntpdriver_messages_number(mailsession * session, char * mb,
 
 static int nntpdriver_append_message(mailsession * session,
                                      char * message, size_t size);
 
+static int nntpdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int
 nntpdriver_get_envelopes_list(mailsession * session,
                               struct mailmessage_list * env_list);
 
@@ -128,8 +131,9 @@ static mailsession_driver local_nntp_session_driver = {
   .sess_subscribe_folder = nntpdriver_subscribe_folder,
   .sess_unsubscribe_folder = nntpdriver_unsubscribe_folder,
 
   .sess_append_message = nntpdriver_append_message,
+  .sess_append_message_flags = nntpdriver_append_message_flags,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = nntpdriver_get_messages_list,
@@ -629,8 +633,14 @@ static int nntpdriver_append_message(mailsession * session,
   }
   while (1);
 }
 
+static int nntpdriver_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return nntpdriver_append_message(session, message, size);
+}
+
 
 static int xover_resp_to_fields(struct newsnntp_xover_resp_item * item,
                                 struct mailimf_fields ** result);
 
diff --git a/kmicromail/libetpan/generic/nntpdriver_cached.c b/kmicromail/libetpan/generic/nntpdriver_cached.c
index 1f8a8af..0343a65 100644
--- a/kmicromail/libetpan/generic/nntpdriver_cached.c
+++ b/kmicromail/libetpan/generic/nntpdriver_cached.c
@@ -95,8 +95,11 @@ static int nntpdriver_cached_unseen_number(mailsession * session, char * mb,
 
 static int nntpdriver_cached_append_message(mailsession * session,
                                             char * message, size_t size);
 
+static int nntpdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags);
+
 static int
 nntpdriver_cached_get_envelopes_list(mailsession * session,
                                      struct mailmessage_list * env_list);
 
@@ -158,8 +161,9 @@ static mailsession_driver local_nntp_cached_session_driver = {
   .sess_subscribe_folder = nntpdriver_cached_subscribe_folder,
   .sess_unsubscribe_folder = nntpdriver_cached_unsubscribe_folder,
 
   .sess_append_message = nntpdriver_cached_append_message,
+  .sess_append_message_flags = nntpdriver_cached_append_message_flags,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = nntpdriver_cached_get_messages_list,
@@ -630,8 +634,14 @@ static int nntpdriver_cached_append_message(mailsession * session,
 {
   return mailsession_append_message(get_ancestor(session), message, size);
 }
 
+static int nntpdriver_cached_append_message_flags(mailsession * session,
+    char * message, size_t size, struct mail_flags * flags)
+{
+  return nntpdriver_cached_append_message(session, message, size);
+}
+
 
 
 static int
 get_cached_envelope(struct mail_cache_db * cache_db, MMAPString * mmapstr,
diff --git a/kmicromail/libetpan/generic/nntpstorage.c b/kmicromail/libetpan/generic/nntpstorage.c
index 5ba333b..89974cd 100644
--- a/kmicromail/libetpan/generic/nntpstorage.c
+++ b/kmicromail/libetpan/generic/nntpstorage.c
@@ -70,9 +70,9 @@ int nntp_mailstorage_init(struct mailstorage * storage,
 {
   struct nntp_mailstorage * nntp_storage;
   int res;
   
-  nntp_storage = malloc(sizeof(struct nntp_mailstorage));
+  nntp_storage = malloc(sizeof(* nntp_storage));
   if (nntp_storage == NULL) {
     res = MAIL_ERROR_MEMORY;
     goto err;
   }
diff --git a/kmicromail/libetpan/generic/pop3driver.c b/kmicromail/libetpan/generic/pop3driver.c
index 20b0fc2..375879e 100644
--- a/kmicromail/libetpan/generic/pop3driver.c
+++ b/kmicromail/libetpan/generic/pop3driver.c
@@ -108,8 +108,9 @@ static mailsession_driver local_pop3_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = NULL,
+  .sess_append_message_flags = NULL,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = pop3driver_get_messages_list,
diff --git a/kmicromail/libetpan/generic/pop3driver_cached.c b/kmicromail/libetpan/generic/pop3driver_cached.c
index 6f97303..24f624b 100644
--- a/kmicromail/libetpan/generic/pop3driver_cached.c
+++ b/kmicromail/libetpan/generic/pop3driver_cached.c
@@ -109,8 +109,11 @@ pop3driver_cached_get_envelopes_list(mailsession * session,
 
 static int pop3driver_cached_get_message(mailsession * session,
     uint32_t num, mailmessage ** result);
 
+static int pop3driver_cached_get_message_by_uid(mailsession * session,
+    const char * uid, mailmessage ** result);
+
 static mailsession_driver local_pop3_cached_session_driver = {
   .sess_name = "pop3-cached",
 
   .sess_initialize = pop3driver_cached_initialize,
@@ -142,8 +145,9 @@ static mailsession_driver local_pop3_cached_session_driver = {
   .sess_subscribe_folder = NULL,
   .sess_unsubscribe_folder = NULL,
 
   .sess_append_message = NULL,
+  .sess_append_message_flags = NULL,
   .sess_copy_message = NULL,
   .sess_move_message = NULL,
 
   .sess_get_messages_list = pop3driver_cached_get_messages_list,
@@ -153,9 +157,9 @@ static mailsession_driver local_pop3_cached_session_driver = {
   .sess_search_messages = maildriver_generic_search_messages,
 #endif
 
   .sess_get_message = pop3driver_cached_get_message,
-  .sess_get_message_by_uid = NULL,
+  .sess_get_message_by_uid = pop3driver_cached_get_message_by_uid,
 };
 
 mailsession_driver * pop3_cached_session_driver =
 &local_pop3_cached_session_driver;
@@ -854,4 +858,42 @@ static int pop3driver_cached_get_message(mailsession * session,
   * result = msg_info;
 
   return MAIL_NO_ERROR;
 }
+
+static int pop3driver_cached_get_message_by_uid(mailsession * session,
+                                  const char * uid, mailmessage ** result)
+{
+  mailpop3 * pop3;
+  struct mailpop3_msg_info * msg_info;
+  int found;
+  unsigned int i;
+  
+  if (uid == NULL)
+    return MAIL_ERROR_INVAL;
+  
+  pop3 = get_pop3_session(session);
+  
+  found = 0;
+  
+  /* iterate all messages and look for uid */
+  for(i = 0 ; i < carray_count(pop3->pop3_msg_tab) ; i++) {
+    msg_info = carray_get(pop3->pop3_msg_tab, i);
+    
+    if (msg_info == NULL)
+      continue;
+    
+    if (msg_info->msg_deleted)
+      continue;
+    
+    /* uid found, stop looking */
+    if (strcmp(msg_info->msg_uidl, uid) == 0) {
+      found = 1;
+      break;
+    }
+  }
+  
+  if (!found)
+    return MAIL_ERROR_MSG_NOT_FOUND;
+  
+  return pop3driver_cached_get_message(session, msg_info->msg_index, result);
+}
diff --git a/kmicromail/libetpan/generic/pop3driver_message.c b/kmicromail/libetpan/generic/pop3driver_message.c
index 77bd94c..357bb2e 100644
--- a/kmicromail/libetpan/generic/pop3driver_message.c
+++ b/kmicromail/libetpan/generic/pop3driver_message.c
@@ -38,8 +38,10 @@
 #include "mailmessage_tools.h"
 #include "pop3driver_tools.h"
 #include "pop3driver.h"
 #include "mailpop3.h"
+#include <stdlib.h>
+#include <string.h>
 
 static int pop3_prefetch(mailmessage * msg_info);
 
 static void pop3_prefetch_free(struct generic_message_t * msg);
@@ -79,8 +81,20 @@ static mailmessage_driver local_pop3_message_driver = {
 };
 
 mailmessage_driver * pop3_message_driver = &local_pop3_message_driver;
 
+static inline struct pop3_session_state_data *
+get_data(mailsession * session)
+{
+  return session->sess_data;
+}
+
+
+static mailpop3 * get_pop3_session(mailsession * session)
+{
+  return get_data(session)->pop3_session;
+}
+
 
 static int pop3_prefetch(mailmessage * msg_info)
 {
   char * msg_content;
@@ -112,16 +126,36 @@ static void pop3_prefetch_free(struct generic_message_t * msg)
 static int pop3_initialize(mailmessage * msg_info)
 {
   struct generic_message_t * msg;
   int r;
+  char * uid;
+  struct mailpop3_msg_info * info;
+  mailpop3 * pop3;
+
+  pop3 = get_pop3_session(msg_info->msg_session);
+  
+  r = mailpop3_get_msg_info(pop3, msg_info->msg_index, &info);
+  switch (r) {
+  case MAILPOP3_NO_ERROR:
+    break;
+  default:
+    return pop3driver_pop3_error_to_mail_error(r);
+  }
+
+  uid = strdup(info->msg_uidl);
+  if (uid == NULL)
+    return MAIL_ERROR_MEMORY;
   
   r = mailmessage_generic_initialize(msg_info);
-  if (r != MAIL_NO_ERROR)
+  if (r != MAIL_NO_ERROR) {
+    free(uid);
     return r;
+  }
 
   msg = msg_info->msg_data;
   msg->msg_prefetch = pop3_prefetch;
   msg->msg_prefetch_free = pop3_prefetch_free;
+  msg_info->msg_uid = uid;
 
   return MAIL_NO_ERROR;
 }
 
diff --git a/kmicromail/libetpan/generic/pop3storage.c b/kmicromail/libetpan/generic/pop3storage.c
index 8e7a94e..375aeaf 100644
--- a/kmicromail/libetpan/generic/pop3storage.c
+++ b/kmicromail/libetpan/generic/pop3storage.c
@@ -67,9 +67,9 @@ int pop3_mailstorage_init(struct mailstorage * storage,
     int pop3_cached, char * pop3_cache_directory, char * pop3_flags_directory)
 {
   struct pop3_mailstorage * pop3_storage;
 
-  pop3_storage = malloc(sizeof(struct pop3_mailstorage));
+  pop3_storage = malloc(sizeof(* pop3_storage));
   if (pop3_storage == NULL)
     goto err;
   
   pop3_storage->pop3_servername = strdup(pop3_servername);