2 files changed, 79 insertions, 6 deletions

diff --git a/noncore/net/mail/libmailwrapper/imapwrapper.cpp b/noncore/net/mail/libmailwrapper/imapwrapper.cpp
index 098dbdc..1dfcc4c 100644
--- a/noncore/net/mail/libmailwrapper/imapwrapper.cpp
+++ b/noncore/net/mail/libmailwrapper/imapwrapper.cpp
@@ -1,374 +1,446 @@
 #include <stdlib.h>
 #include <libetpan/libetpan.h>
 #include <qpe/global.h>
 
 #include "imapwrapper.h"
 #include "mailtypes.h"
 #include "logindialog.h"
 
 IMAPwrapper::IMAPwrapper( IMAPaccount *a )
     : AbstractMail()
 {
     account = a;
     m_imap = 0;
     m_Lastmbox = "";
 }
 
 IMAPwrapper::~IMAPwrapper()
 {
     logout();
 }
 
 /* to avoid to often select statements in loops etc.
    we trust that we are logged in and connection is established!*/
 int IMAPwrapper::selectMbox(const QString&mbox)
 {
     if (mbox == m_Lastmbox) {
         return MAILIMAP_NO_ERROR;
     }
     int err = mailimap_select( m_imap, (char*)mbox.latin1());
     if ( err != MAILIMAP_NO_ERROR ) {
         qDebug("error selecting mailbox: %s",m_imap->imap_response);
         m_Lastmbox = "";
         return err;
     }
     m_Lastmbox = mbox;
     return err;
 }
 
 void IMAPwrapper::imap_progress( size_t current, size_t maximum )
 {
     qDebug( "IMAP: %i of %i", current, maximum );
 }
 
+bool IMAPwrapper::start_tls(bool force_tls)
+{
+    int err;
+    bool try_tls;
+    mailimap_capability_data * cap_data = 0;
+
+    err = mailimap_capability(m_imap,&cap_data);
+    if (err != MAILIMAP_NO_ERROR) {
+        Global::statusMessage("error getting capabilities!");
+        qDebug("error getting capabilities!");
+        return false;
+    }
+    clistiter * cur;
+    for(cur = clist_begin(cap_data->cap_list) ; cur != NULL;cur = clist_next(cur)) {
+        struct mailimap_capability * cap;
+        cap  = (struct mailimap_capability *)clist_content(cur);
+        if (cap->cap_type == MAILIMAP_CAPABILITY_NAME) {
+            if (strcasecmp(cap->cap_data.cap_name, "STARTTLS") == 0) {
+                try_tls = true;
+                break;
+            }
+        }
+    }
+    if (cap_data) {
+        mailimap_capability_data_free(cap_data);
+    }
+    if (try_tls) {
+        err =  mailimap_starttls(m_imap);
+        if (err != MAILIMAP_NO_ERROR && force_tls) {
+            Global::statusMessage(tr("Server has no TLS support!"));
+            qDebug("Server has no TLS support!");
+            try_tls = false;
+        } else {
+            mailstream_low * low;
+            mailstream_low * new_low;
+            low = mailstream_get_low(m_imap->imap_stream);
+            if (!low) {
+                try_tls = false;
+            } else {
+                int fd = mailstream_low_get_fd(low);
+                if (fd > -1 && (new_low = mailstream_low_ssl_open(fd))!=0) {
+                    mailstream_low_free(low);
+                    mailstream_set_low(m_imap->imap_stream, new_low);
+                } else {
+                    try_tls = false;
+                }
+            }
+        }
+   }
+   return try_tls;
+}
+
 void IMAPwrapper::login()
 {
     const char *server, *user, *pass;
     uint16_t port;
     int err = MAILIMAP_NO_ERROR;
 
     if (account->getOffline()) return;
     /* we are connected this moment */
     /* TODO: setup a timer holding the line or if connection closed - delete the value */
     if (m_imap) {
         err = mailimap_noop(m_imap);
         if (err!=MAILIMAP_NO_ERROR) {
             logout();
         } else {
             mailstream_flush(m_imap->imap_stream);
             return;
         }
     }
     server = account->getServer().latin1();
     port = account->getPort().toUInt();
         if ( account->getUser().isEmpty() || account->getPassword().isEmpty() ) {
           LoginDialog login( account->getUser(), account->getPassword(), NULL, 0, true );
           login.show();
           if ( QDialog::Accepted == login.exec() ) {
                 // ok
                 user = login.getUser().latin1();
                 pass = login.getPassword().latin1();
           } else {
                 // cancel
                 qDebug( "IMAP: Login canceled" );
                 return;
           }
         } else {
           user = account->getUser().latin1();
           pass = account->getPassword().latin1();
         }
 
     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, port );
     } else {
         err = mailimap_socket_connect( m_imap, (char*)server, 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!"));
+        qDebug("Server has no TLS support!");
+        ok = false;
+    }
+
+
     /* login */
-    err = mailimap_login_simple( m_imap, (char*)user, (char*)pass );
-    if ( err != MAILIMAP_NO_ERROR ) {
-        Global::statusMessage(tr("error logging in imap server: %1").arg(m_imap->imap_response));
+
+    if (ok) {
+        err = mailimap_login_simple( m_imap, (char*)user, (char*)pass );
+        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,QList<RecMail> &target )
 {
     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) {
                 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);
 }
 
 QList<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;
 
     QList<Folder> * folders = new QList<Folder>();
     folders->setAutoDelete( false );
     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: %s",m_imap->imap_response);
     }
     mailimap_list_result_free( result );
 
 /*
  * second stage - get the other then inbox folders
  */
     mask = "*" ;
     path = account->getPrefix().latin1();
     if (!path) path = "";
     qDebug(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 %s",m_imap->imap_response);
     }
     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->att_type!=MAILIMAP_MSG_ATT_ITEM_STATIC) {
             flist = (mailimap_msg_att_dynamic*)item->att_data.att_dyn;
             if (!flist->att_list) {
                 continue;
             }
             cf = flist->att_list->first;
             for (cf = clist_begin(flist->att_list); cf!=NULL; cf = clist_next(cf)) {
                 cflag = (mailimap_flag_fetch*)cf->data;
                 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->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));
             //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);
             }
             if (head->env_reply_to!=NULL) {
                 addresslist = address_list_to_stringlist(head->env_reply_to->rt_list);
                 if (addresslist.count()) {
                     m->setReplyto(addresslist.first());
                 }
             }
diff --git a/noncore/net/mail/libmailwrapper/imapwrapper.h b/noncore/net/mail/libmailwrapper/imapwrapper.h
index c10f86a..0a1fe2c 100644
--- a/noncore/net/mail/libmailwrapper/imapwrapper.h
+++ b/noncore/net/mail/libmailwrapper/imapwrapper.h
@@ -1,77 +1,78 @@
 #ifndef __IMAPWRAPPER
 #define __IMAPWRAPPER
 
 #include <qlist.h>
 #include "mailwrapper.h"
 #include "abstractmail.h"
 #include <libetpan/clist.h>
 
 struct mailimap;
 struct mailimap_body;
 struct mailimap_body_type_1part;
 struct mailimap_body_type_text;
 struct mailimap_body_type_basic;
 struct mailimap_body_type_msg;
 struct mailimap_body_type_mpart;
 struct mailimap_body_fields;
 struct mailimap_msg_att;
 class encodedString;
 
 class IMAPwrapper : public AbstractMail
 {
     Q_OBJECT
 public:
     IMAPwrapper( IMAPaccount *a );
     virtual ~IMAPwrapper();
     virtual QList<Folder>* listFolders();
     virtual void listMessages(const QString & mailbox,QList<RecMail>&target );
     virtual void statusFolder(folderStat&target_stat,const QString & mailbox="INBOX");
     
     virtual void deleteMail(const RecMail&mail);
     virtual void answeredMail(const RecMail&mail);
     virtual int deleteAllMail(const Folder*folder);
     virtual void storeMessage(const char*msg,size_t length, const QString&folder);
     virtual void mvcpAllMails(Folder*fromFolder,const QString&targetFolder,AbstractMail*targetWrapper,bool moveit);
     virtual void mvcpMail(const RecMail&mail,const QString&targetFolder,AbstractMail*targetWrapper,bool moveit);
 
     virtual RecBody fetchBody(const RecMail&mail);
     virtual QString fetchTextPart(const RecMail&mail,const RecPart&part);
     virtual encodedString* fetchDecodedPart(const RecMail&mail,const RecPart&part);
     virtual encodedString* fetchRawPart(const RecMail&mail,const RecPart&part);
     virtual encodedString* fetchRawBody(const RecMail&mail);
 
     virtual int createMbox(const QString&,const Folder*parentfolder=0,const QString& delemiter="/",bool getsubfolder=false);
     virtual int deleteMbox(const Folder*folder);
     
     static void imap_progress( size_t current, size_t maximum );
     
     virtual void logout();
     virtual const QString&getType()const;
     virtual const QString&getName()const;
 
 protected:
     RecMail*parse_list_result(mailimap_msg_att*);
     void login();
+    bool start_tls(bool force=true);
 
     virtual QString fetchTextPart(const RecMail&mail,const QValueList<int>&path,bool internal_call=false,const QString&enc="");
     virtual encodedString*fetchRawPart(const RecMail&mail,const QValueList<int>&path,bool internal_call);
     int selectMbox(const QString&mbox);
 
     void fillSinglePart(RecPart&target_part,mailimap_body_type_1part*Description);
     void fillSingleTextPart(RecPart&target_part,mailimap_body_type_text*which);
     void fillSingleBasicPart(RecPart&target_part,mailimap_body_type_basic*which);
     void fillSingleMsgPart(RecPart&target_part,mailimap_body_type_msg*which);
     void fillMultiPart(RecPart&target_part,mailimap_body_type_mpart*which);
     void traverseBody(const RecMail&mail,mailimap_body*body,RecBody&target_body,int current_recursion,QValueList<int>recList,int current_count=1);
     
     /* just helpers */
     static void fillBodyFields(RecPart&target_part,mailimap_body_fields*which);
     static QStringList address_list_to_stringlist(clist*list);
 
 
     IMAPaccount *account;
     mailimap *m_imap;
     QString m_Lastmbox;
 };
 
 #endif