Some imap fixes

1 files changed, 15 insertions, 4 deletions

diff --git a/kmicromail/libmailwrapper/imapwrapper.cpp b/kmicromail/libmailwrapper/imapwrapper.cpp
index be825ef..ca1c7f1 100644
--- a/kmicromail/libmailwrapper/imapwrapper.cpp
+++ b/kmicromail/libmailwrapper/imapwrapper.cpp
@@ -150,593 +150,604 @@ void IMAPwrapper::login()
         // cancel
         return;
       }
     } else {
       user = account->getUser();
       pass = account->getPassword();
     }
 
     m_imap = mailimap_new( 20, &imap_progress );
 
     /* connect */
     bool ssl = false;
     bool try_tls = false;
     bool force_tls = false;
 
     if  ( account->ConnectionType() == 2 ) {
         ssl = true;
     }
     if (account->ConnectionType()==1) {
         force_tls = true;
     }
 
     if ( ssl ) {
         qDebug("using ssl ");
         err = mailimap_ssl_connect( m_imap, (char*)server.latin1(), port );
     } else {
         err = mailimap_socket_connect( m_imap, (char*)server.latin1(), port );
     }
 
     if ( err != MAILIMAP_NO_ERROR &&
          err != MAILIMAP_NO_ERROR_AUTHENTICATED &&
          err != MAILIMAP_NO_ERROR_NON_AUTHENTICATED ) {
          QString failure = "";
          if (err == MAILIMAP_ERROR_CONNECTION_REFUSED) {
             failure="Connection refused";
          } else {
             failure="Unknown failure";
          }
          Global::statusMessage(tr("error connecting imap server: %1").arg(failure));
          mailimap_free( m_imap );
          m_imap = 0;
          return;
     }
 
     if (!ssl) {
         try_tls = start_tls(force_tls);
     }
 
     bool ok = true;
     if (force_tls && !try_tls) {
         Global::statusMessage(tr("Server has no TLS support!"));
         ok = false;
     }
 
 
     /* login */
 
     if (ok) {
         err = mailimap_login_simple( m_imap, (char*)user.latin1(), (char*)pass.latin1() );
         if ( err != MAILIMAP_NO_ERROR ) {
             Global::statusMessage(tr("error logging in imap server: %1").arg(m_imap->imap_response));
             ok = false;
         }
     }
     if (!ok) {
         err = mailimap_close( m_imap );
         mailimap_free( m_imap );
         m_imap = 0;
     }
 }
 
 void IMAPwrapper::logout()
 {
     int err = MAILIMAP_NO_ERROR;
     if (!m_imap) return;
     err = mailimap_logout( m_imap );
     err = mailimap_close( m_imap );
     mailimap_free( m_imap );
     m_imap = 0;
     m_Lastmbox = "";
 }
 
 void IMAPwrapper::listMessages(const QString&mailbox,QValueList<Opie::Core::OSmartPointer<RecMail> > &target , int maxSizeInKb)
 {
     int err = MAILIMAP_NO_ERROR;
     clist *result = 0;
     clistcell *current;
     mailimap_fetch_type *fetchType = 0;
     mailimap_set *set = 0;
 
     login();
     if (!m_imap) {
         return;
     }
     /* select mailbox READONLY for operations */
     err = selectMbox(mailbox);
     if ( err != MAILIMAP_NO_ERROR ) {
         return;
     }
 
     int last = m_imap->imap_selection_info->sel_exists;
 
     if (last == 0) {
         Global::statusMessage(tr("Mailbox has no mails"));
         return;
     } else {
     }
 
     /* the range has to start at 1!!! not with 0!!!! */
     set = mailimap_set_new_interval( 1, last );
     fetchType = mailimap_fetch_type_new_fetch_att_list_empty();
     mailimap_fetch_type_new_fetch_att_list_add(fetchType,mailimap_fetch_att_new_envelope());
     mailimap_fetch_type_new_fetch_att_list_add(fetchType,mailimap_fetch_att_new_flags());
     mailimap_fetch_type_new_fetch_att_list_add(fetchType,mailimap_fetch_att_new_internaldate());
     mailimap_fetch_type_new_fetch_att_list_add(fetchType,mailimap_fetch_att_new_rfc822_size());
 
     err = mailimap_fetch( m_imap, set, fetchType, &result );
     mailimap_set_free( set );
     mailimap_fetch_type_free( fetchType );
 
     QString date,subject,from;
 
     if ( err == MAILIMAP_NO_ERROR ) {
         mailimap_msg_att * msg_att;
         int i = 0;
         for (current = clist_begin(result); current != 0; current=clist_next(current)) {
             ++i;
             msg_att = (mailimap_msg_att*)current->data;
             RecMail*m = parse_list_result(msg_att);
             if (m) {
                 if ( maxSizeInKb == 0 || m->Msgsize()<=maxSizeInKb*1024 ) {
                     m->setNumber(i);
                     m->setMbox(mailbox);
                     m->setWrapper(this);
                     target.append(m);
                 }
             }
         }
         Global::statusMessage(tr("Mailbox has %1 mails").arg(target.count()));
     } else {
         Global::statusMessage(tr("Error fetching headers: %1").arg(m_imap->imap_response));
     }
     if (result) mailimap_fetch_list_free(result);
 }
 
 QValueList<Opie::Core::OSmartPointer<Folder> >* IMAPwrapper::listFolders()
 {
     const char *path, *mask;
     int err = MAILIMAP_NO_ERROR;
     clist *result = 0;
     clistcell *current = 0;
     clistcell*cur_flag = 0;
     mailimap_mbx_list_flags*bflags = 0;
 
     QValueList<FolderP>* folders = new QValueList<FolderP>();
     login();
     if (!m_imap) {
         return folders;
     }
 
 /*
  * First we have to check for INBOX 'cause it sometimes it's not inside the path.
  * We must not forget to filter them out in next loop!
  * it seems like ugly code. and yes - it is ugly code. but the best way.
  */
     QString temp;
     mask = "INBOX" ;
     mailimap_mailbox_list *list;
     err = mailimap_list( m_imap, (char*)"", (char*)mask, &result );
     QString del;
     bool selectable = true;
     bool no_inferiors = false;
     if ( err == MAILIMAP_NO_ERROR ) {
         current = result->first;
         for ( int i = result->count; i > 0; i-- ) {
             list = (mailimap_mailbox_list *) current->data;
             // it is better use the deep copy mechanism of qt itself
             // instead of using strdup!
             temp = list->mb_name;
             del = list->mb_delimiter;
             current = current->next;
             if ( (bflags = list->mb_flag) ) {
                 selectable = !(bflags->mbf_type==MAILIMAP_MBX_LIST_FLAGS_SFLAG&&
                             bflags->mbf_sflag==MAILIMAP_MBX_LIST_SFLAG_NOSELECT);
                 for(cur_flag=clist_begin(bflags->mbf_oflags);cur_flag;cur_flag=clist_next(cur_flag)) {
                     if ( ((mailimap_mbx_list_oflag*)cur_flag->data)->of_type==MAILIMAP_MBX_LIST_OFLAG_NOINFERIORS) {
                         no_inferiors = true;
                     }
                 }
             }
             folders->append( new IMAPFolder(temp,del,selectable,no_inferiors,account->getPrefix()));
         }
     } else {
         qDebug("error fetching folders: ");
       
     }
     mailimap_list_result_free( result );
 
 /*
  * second stage - get the other then inbox folders
  */
     mask = "*" ;
     path = account->getPrefix().latin1();
     if (!path) path = "";
     err = mailimap_list( m_imap, (char*)path, (char*)mask, &result );
     if ( err == MAILIMAP_NO_ERROR ) {
         current = result->first;
         for ( current=clist_begin(result);current!=NULL;current=clist_next(current)) {
             no_inferiors = false;
             list = (mailimap_mailbox_list *) current->data;
             // it is better use the deep copy mechanism of qt itself
             // instead of using strdup!
             temp = list->mb_name;
             if (temp.lower()=="inbox")
                 continue;
             if (temp.lower()==account->getPrefix().lower())
                 continue;
             if ( (bflags = list->mb_flag) ) {
                 selectable = !(bflags->mbf_type==MAILIMAP_MBX_LIST_FLAGS_SFLAG&&
                             bflags->mbf_sflag==MAILIMAP_MBX_LIST_SFLAG_NOSELECT);
                 for(cur_flag=clist_begin(bflags->mbf_oflags);cur_flag;cur_flag=clist_next(cur_flag)) {
                     if ( ((mailimap_mbx_list_oflag*)cur_flag->data)->of_type==MAILIMAP_MBX_LIST_OFLAG_NOINFERIORS) {
                         no_inferiors = true;
                     }
                 }
             }
             del = list->mb_delimiter;
             folders->append(new IMAPFolder(temp,del,selectable,no_inferiors,account->getPrefix()));
         }
     } else {
         qDebug("error fetching folders  ");
      
     }
     if (result) mailimap_list_result_free( result );
     return folders;
 }
 
 RecMail*IMAPwrapper::parse_list_result(mailimap_msg_att* m_att)
 {
     RecMail * m = 0;
     mailimap_msg_att_item *item=0;
     clistcell *current,*c,*cf;
     mailimap_msg_att_dynamic*flist;
     mailimap_flag_fetch*cflag;
     int size;
     QBitArray mFlags(7);
     QStringList addresslist;
 
     if (!m_att) {
         return m;
     }
     m = new RecMail();
     for (c = clist_begin(m_att->att_list); c!=NULL;c=clist_next(c) ) {
         current = c;
         size = 0;
         item = (mailimap_msg_att_item*)current->data;
+        if ( !item )
+            continue;
         if (item->att_type!=MAILIMAP_MSG_ATT_ITEM_STATIC) {
             flist = (mailimap_msg_att_dynamic*)item->att_data.att_dyn;
-            if (!flist->att_list) {
+            if (!flist || !flist->att_list) {
                 continue;
             }
             cf = flist->att_list->first;
+            if( ! cf )
             for (cf = clist_begin(flist->att_list); cf!=NULL; cf = clist_next(cf)) {
                 cflag = (mailimap_flag_fetch*)cf->data;
+                if( ! cflag )
+                    qDebug("imap:not cflag ");
                 if (cflag->fl_type==MAILIMAP_FLAG_FETCH_OTHER && cflag->fl_flag!=0) {
                     switch (cflag->fl_flag->fl_type) {
                     case MAILIMAP_FLAG_ANSWERED:  /* \Answered flag */
                         mFlags.setBit(FLAG_ANSWERED);
                         break;
                     case MAILIMAP_FLAG_FLAGGED:   /* \Flagged flag */
                         mFlags.setBit(FLAG_FLAGGED);
                         break;
                     case MAILIMAP_FLAG_DELETED:   /* \Deleted flag */
                         mFlags.setBit(FLAG_DELETED);
                         break;
                     case MAILIMAP_FLAG_SEEN:      /* \Seen flag */
                         mFlags.setBit(FLAG_SEEN);
                         break;
                     case MAILIMAP_FLAG_DRAFT:     /* \Draft flag */
                         mFlags.setBit(FLAG_DRAFT);
                         break;
                     case MAILIMAP_FLAG_KEYWORD:   /* keyword flag */
                         break;
                     case MAILIMAP_FLAG_EXTENSION: /* \extension flag */
                         break;
                     default:
                         break;
                     }
                 } else if (cflag->fl_type==MAILIMAP_FLAG_FETCH_RECENT) {
                     mFlags.setBit(FLAG_RECENT);
                 }
             }
             continue;
         }
+        if ( item->att_data.att_static == NULL )
+            continue;
         if (item->att_data.att_static->att_type==MAILIMAP_MSG_ATT_ENVELOPE) {
             mailimap_envelope * head = item->att_data.att_static->att_data.att_env;
-            m->setDate(head->env_date);
-            m->setSubject(convert_String((const char*)head->env_subject));
+            if ( head == NULL )
+                continue;
+            if ( head->env_date != NULL ) 
+                m->setDate(head->env_date);
+            if ( head->env_subject != NULL ) 
+                m->setSubject(convert_String((const char*)head->env_subject));
             //m->setSubject(head->env_subject);
             if (head->env_from!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_from->frm_list);
                 if (addresslist.count()) {
                     m->setFrom(addresslist.first());
                 }
             }
             if (head->env_to!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_to->to_list);
                 m->setTo(addresslist);
             }
             if (head->env_cc!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_cc->cc_list);
                 m->setCC(addresslist);
             }
             if (head->env_bcc!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_bcc->bcc_list);
                 m->setBcc(addresslist);
             }
             /* reply to address, eg. email. */
             if (head->env_reply_to!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_reply_to->rt_list);
                 if (addresslist.count()) {
                     m->setReplyto(addresslist.first());
                 }
             }
             if (head->env_in_reply_to!=NULL) {
                 QString h(head->env_in_reply_to);
                 while (h.length()>0 && h[0]=='<') {
                     h.remove(0,1);
                 }
                 while (h.length()>0 && h[h.length()-1]=='>') {
                     h.remove(h.length()-1,1);
                 }
                 if (h.length()>0) {
                     m->setInreply(QStringList(h));
                 }
             }
-            if (head->env_message_id) {
+            if (head->env_message_id != NULL) {
                 m->setMsgid(QString(head->env_message_id));
             }
         } else if (item->att_data.att_static->att_type==MAILIMAP_MSG_ATT_INTERNALDATE) {
 #if 0
             mailimap_date_time*d = item->att_data.att_static->att_data.att_internal_date;
             QDateTime da(QDate(d->dt_year,d->dt_month,d->dt_day),QTime(d->dt_hour,d->dt_min,d->dt_sec));
             qDebug("time %s ",da.toString().latin1() );
 #endif
         } else if (item->att_data.att_static->att_type==MAILIMAP_MSG_ATT_RFC822_SIZE) {
             size = item->att_data.att_static->att_data.att_rfc822_size;
         }
     }
     /* msg is already deleted */
     if (mFlags.testBit(FLAG_DELETED) && m) {
         delete m;
         m = 0;
     }
     if (m) {
         m->setFlags(mFlags);
         m->setMsgsize(size);
     }
     return m;
 }
 
 RecBodyP IMAPwrapper::fetchBody(const RecMailP&mail)
 {
     RecBodyP body = new RecBody();
     const char *mb;
     int err = MAILIMAP_NO_ERROR;
     clist *result = 0;
     clistcell *current;
     mailimap_fetch_att *fetchAtt = 0;
     mailimap_fetch_type *fetchType = 0;
     mailimap_set *set = 0;
     mailimap_body*body_desc = 0;
 
     mb = mail->getMbox().latin1();
 
     login();
     if (!m_imap) {
         return body;
     }
     err = selectMbox(mail->getMbox());
     if ( err != MAILIMAP_NO_ERROR ) {
         return body;
     }
 
     /* the range has to start at 1!!! not with 0!!!! */
     set = mailimap_set_new_interval( mail->getNumber(),mail->getNumber() );
     fetchAtt = mailimap_fetch_att_new_bodystructure();
     fetchType = mailimap_fetch_type_new_fetch_att(fetchAtt);
     err = mailimap_fetch( m_imap, set, fetchType, &result );
     mailimap_set_free( set );
     mailimap_fetch_type_free( fetchType );
 
     if (err == MAILIMAP_NO_ERROR && (current=clist_begin(result)) ) {
         mailimap_msg_att * msg_att;
         msg_att = (mailimap_msg_att*)current->data;
         mailimap_msg_att_item*item = (mailimap_msg_att_item*)msg_att->att_list->first->data;
         QValueList<int> path;
         body_desc = item->att_data.att_static->att_data.att_body;
         traverseBody(mail,body_desc,body,0,path);
     } else {
         //odebug << "error fetching body: " << m_imap->imap_response << "" << oendl; 
     }
     if (result) mailimap_fetch_list_free(result);
     return body;
 }
 
 QStringList IMAPwrapper::address_list_to_stringlist(clist*list)
 {
     QStringList l;
     QString from;
     bool named_from;
     clistcell *current = NULL;
     mailimap_address * current_address=NULL;
     if (!list) {
         return l;
     }
     unsigned int count = 0;
     for (current=clist_begin(list);current!= NULL;current=clist_next(current)) {
         from = "";
         named_from = false;
         current_address=(mailimap_address*)current->data;
         if (current_address->ad_personal_name){
             from+=convert_String((const char*)current_address->ad_personal_name);
             from+=" ";
             named_from = true;
         }
         if (named_from && (current_address->ad_mailbox_name || current_address->ad_host_name)) {
             from+="<";
         }
         if (current_address->ad_mailbox_name) {
             from+=QString(current_address->ad_mailbox_name);
             from+="@";
         }
         if (current_address->ad_host_name) {
              from+=QString(current_address->ad_host_name);
         }
         if (named_from && (current_address->ad_mailbox_name || current_address->ad_host_name)) {
            from+=">";
         }
         l.append(QString(from));
         if (++count > 99) {
             break;
         }
     }
     return l;
 }
 
 encodedString*IMAPwrapper::fetchRawPart(const RecMailP&mail,const QValueList<int>&path,bool internal_call)
 {
     encodedString*res=new encodedString;
     int err;
     mailimap_fetch_type *fetchType;
     mailimap_set *set;
     clistcell*current,*cur;
     mailimap_section_part * section_part =  0;
     mailimap_section_spec * section_spec =  0;
     mailimap_section * section = 0;
     mailimap_fetch_att * fetch_att = 0;
 
     login();
     if (!m_imap) {
         return res;
     }
     if (!internal_call) {
         err = selectMbox(mail->getMbox());
         if ( err != MAILIMAP_NO_ERROR ) {
             return res;
         }
     }
     set = mailimap_set_new_single(mail->getNumber());
 
     clist*id_list = 0;
 
     /* if path == empty then its a request for the whole rfc822 mail and generates
        a "fetch <id> (body[])" statement on imap server */
     if (path.count()>0 ) {
         id_list = clist_new();
         for (unsigned j=0; j < path.count();++j) {
             uint32_t * p_id = (uint32_t *)malloc(sizeof(*p_id));
             *p_id = path[j];
             clist_append(id_list,p_id);
         }
         section_part =  mailimap_section_part_new(id_list);
         section_spec =  mailimap_section_spec_new(MAILIMAP_SECTION_SPEC_SECTION_PART, NULL, section_part, NULL);
     }
 
     section =  mailimap_section_new(section_spec);
     fetch_att = mailimap_fetch_att_new_body_section(section);
     fetchType = mailimap_fetch_type_new_fetch_att(fetch_att);
 
     clist*result = 0;
 
     err = mailimap_fetch( m_imap, set, fetchType, &result );
     mailimap_set_free( set );
     mailimap_fetch_type_free( fetchType );
 
     if (err == MAILIMAP_NO_ERROR && (current=clist_begin(result)) ) {
         mailimap_msg_att * msg_att;
         msg_att = (mailimap_msg_att*)current->data;
         mailimap_msg_att_item*msg_att_item;
         for(cur = clist_begin(msg_att->att_list) ; cur != NULL ; cur = clist_next(cur)) {
             msg_att_item = (mailimap_msg_att_item*)clist_content(cur);
             if (msg_att_item->att_type == MAILIMAP_MSG_ATT_ITEM_STATIC) {
                 if (msg_att_item->att_data.att_static->att_type == MAILIMAP_MSG_ATT_BODY_SECTION) {
                     char*text = msg_att_item->att_data.att_static->att_data.att_body_section->sec_body_part;
                     /* detach - we take over the content */
                     msg_att_item->att_data.att_static->att_data.att_body_section->sec_body_part = 0L;
                     res->setContent(text,msg_att_item->att_data.att_static->att_data.att_body_section->sec_length);
                 }
             }
         }
     } else {
         ;//odebug << "error fetching text: " << m_imap->imap_response << "" << oendl; 
     }
     if (result) mailimap_fetch_list_free(result);
     return res;
 }
 
 /* current_recursion is for recursive calls.
    current_count means the position inside the internal loop! */
 void IMAPwrapper::traverseBody(const RecMailP&mail,mailimap_body*body,RecBodyP&target_body,
     int current_recursion,QValueList<int>recList,int current_count)
 {
     if (!body || current_recursion>=10) {
         return;
     }
     switch (body->bd_type) {
     case MAILIMAP_BODY_1PART:
     {
         QValueList<int>countlist = recList;
         countlist.append(current_count);
         RecPartP currentPart = new RecPart();
         mailimap_body_type_1part*part1 = body->bd_data.bd_body_1part;
         QString id("");
         currentPart->setPositionlist(countlist);
         for (unsigned int j = 0; j < countlist.count();++j) {
             id+=(j>0?" ":"");
             id+=QString("%1").arg(countlist[j]);
         }
         //odebug << "ID = " << id.latin1() << "" << oendl; 
         currentPart->setIdentifier(id);
         fillSinglePart(currentPart,part1);
         /* important: Check for is NULL 'cause a body can be empty!
            And we put it only into the mail if it is the FIRST part */
         if (part1->bd_type==MAILIMAP_BODY_TYPE_1PART_TEXT && target_body->Bodytext().isNull() && countlist[0]==1) {
             QString body_text = fetchTextPart(mail,countlist,true,currentPart->Encoding());
             target_body->setDescription(currentPart);
             target_body->setBodytext(body_text);
             if (countlist.count()>1) {
                 target_body->addPart(currentPart);
             }
         } else {
             target_body->addPart(currentPart);
         }
         if (part1->bd_type==MAILIMAP_BODY_TYPE_1PART_MSG) {
             traverseBody(mail,part1->bd_data.bd_type_msg->bd_body,target_body,current_recursion+1,countlist);
         }
     }
     break;
     case MAILIMAP_BODY_MPART:
     {
         QValueList<int>countlist = recList;
         clistcell*current=0;
         mailimap_body*current_body=0;
         unsigned int ccount = 1;
         mailimap_body_type_mpart*mailDescription = body->bd_data.bd_body_mpart;
         for (current=clist_begin(mailDescription->bd_list);current!=0;current=clist_next(current)) {
             current_body = (mailimap_body*)current->data;
             if (current_body->bd_type==MAILIMAP_BODY_MPART) {
                 RecPartP targetPart = new RecPart();
                 targetPart->setType("multipart");
                 fillMultiPart(targetPart,mailDescription);
                 countlist.append(current_count);
                 targetPart->setPositionlist(countlist);
                 target_body->addPart(targetPart);
                 QString id("");
                 for (unsigned int j = 0; j < countlist.count();++j) {
                     id+=(j>0?" ":"");
                     id+=QString("%1").arg(countlist[j]);
                 }
                 // odebug << "ID(mpart) = " << id.latin1() << "" << oendl; 
             }
             traverseBody(mail,current_body,target_body,current_recursion+1,countlist,ccount);
             if (current_body->bd_type==MAILIMAP_BODY_MPART) {
                 countlist = recList;
             }
             ++ccount;
         }
     }
     break;
     default:
     break;
     }