last selected mbox will hold so it will not called so often in outside loops

(it could cause segmentation faults, too - there is another bug in libetpan
I didn't found yet)

2 files changed, 38 insertions, 29 deletions

diff --git a/noncore/net/mail/libmailwrapper/imapwrapper.cpp b/noncore/net/mail/libmailwrapper/imapwrapper.cpp
index 23c678b..98634a3 100644
--- a/noncore/net/mail/libmailwrapper/imapwrapper.cpp
+++ b/noncore/net/mail/libmailwrapper/imapwrapper.cpp
@@ -6,23 +6,41 @@
 #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 );
 }
 
 void IMAPwrapper::login()
 {
     const char *server, *user, *pass;
@@ -97,37 +115,34 @@ void IMAPwrapper::login()
 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 )
 {
-    const char *mb = 0;
     int err = MAILIMAP_NO_ERROR;
     clist *result = 0;
     clistcell *current;
-//    mailimap_fetch_att *fetchAtt,*fetchAttFlags,*fetchAttDate,*fetchAttSize;
     mailimap_fetch_type *fetchType = 0;
     mailimap_set *set = 0;
 
-    mb = mailbox.latin1();
     login();
     if (!m_imap) {
         return;
     }
     /* select mailbox READONLY for operations */
-    err = mailimap_examine( m_imap, (char*)mb);
+    err = selectMbox(mailbox);
     if ( err != MAILIMAP_NO_ERROR ) {
-        Global::statusMessage(tr("error selecting mailbox: %1").arg(m_imap->imap_response));
         return;
     }
 
     int last = m_imap->imap_selection_info->sel_exists;
 
     if (last == 0) {
         Global::statusMessage(tr("Mailbox has no mails"));
         return;
@@ -384,20 +399,18 @@ RecBody IMAPwrapper::fetchBody(const RecMail&mail)
     mailimap_body*body_desc = 0;
 
     mb = mail.getMbox().latin1();
 
     login();
     if (!m_imap) {
         return body;
     }
-    
-    err = mailimap_select( m_imap, (char*)mb);
+    err = selectMbox(mail.getMbox());
     if ( err != MAILIMAP_NO_ERROR ) {
-        qDebug("error selecting mailbox: %s",m_imap->imap_response);
         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 );
@@ -457,35 +470,32 @@ QStringList IMAPwrapper::address_list_to_stringlist(clist*list)
         }
     }
     return l;
 }
 
 encodedString*IMAPwrapper::fetchRawPart(const RecMail&mail,const QValueList<int>&path,bool internal_call)
 {
     encodedString*res=new encodedString;
-    const char*mb;
     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) {
-        mb = mail.getMbox().latin1();
-        err = mailimap_select( m_imap, (char*)mb);
+        err = selectMbox(mail.getMbox());
         if ( err != MAILIMAP_NO_ERROR ) {
-            qDebug("error selecting mailbox: %s",m_imap->imap_response);
             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
@@ -768,20 +778,18 @@ void IMAPwrapper::deleteMail(const RecMail&mail)
     mailimap_flag_list*flist;
     mailimap_set *set;
     mailimap_store_att_flags * store_flags;
     int err;
     login();
     if (!m_imap) {
         return;
     }
-    const char *mb = mail.getMbox().latin1();
-    err = mailimap_select( m_imap, (char*)mb);
+    err = selectMbox(mail.getMbox());
     if ( err != MAILIMAP_NO_ERROR ) {
-        qDebug("error selecting mailbox for delete: %s",m_imap->imap_response);
         return;
     }
     flist = mailimap_flag_list_new_empty();
     mailimap_flag_list_add(flist,mailimap_flag_new_deleted());
     store_flags = mailimap_store_att_flags_new_set_flags(flist);
     set = mailimap_set_new_single(mail.getNumber());
     err = mailimap_store(m_imap,set,store_flags);
     mailimap_set_free( set );
@@ -805,20 +813,18 @@ void IMAPwrapper::answeredMail(const RecMail&mail)
     mailimap_flag_list*flist;
     mailimap_set *set;
     mailimap_store_att_flags * store_flags;
     int err;
     login();
     if (!m_imap) {
         return;
     }
-    const char *mb = mail.getMbox().latin1();
-    err = mailimap_select( m_imap, (char*)mb);
+    err = selectMbox(mail.getMbox());
     if ( err != MAILIMAP_NO_ERROR ) {
-        qDebug("error selecting mailbox for mark: %s",m_imap->imap_response);
         return;
     }
     flist = mailimap_flag_list_new_empty();
     mailimap_flag_list_add(flist,mailimap_flag_new_answered());
     store_flags = mailimap_store_att_flags_new_add_flags(flist);
     set = mailimap_set_new_single(mail.getNumber());
     err = mailimap_store(m_imap,set,store_flags);
     mailimap_set_free( set );
@@ -867,21 +873,21 @@ int IMAPwrapper::deleteAllMail(const Folder*folder)
 {
     login();
     if (!m_imap) {
         return 0;
     }
     mailimap_flag_list*flist;
     mailimap_set *set;
     mailimap_store_att_flags * store_flags;
-    int err = mailimap_select( m_imap, folder->getName().latin1());
+    int err = selectMbox(folder->getName());
     if ( err != MAILIMAP_NO_ERROR ) {
-        Global::statusMessage(tr("error selecting mailbox: %1").arg(m_imap->imap_response));
         return 0;
     }
+
     int last = m_imap->imap_selection_info->sel_exists;
     if (last == 0) {
         Global::statusMessage(tr("Mailbox has no mails!"));
         return 0;
     }
     flist = mailimap_flag_list_new_empty();
     mailimap_flag_list_add(flist,mailimap_flag_new_deleted());
     store_flags = mailimap_store_att_flags_new_set_flags(flist);
@@ -1017,35 +1023,36 @@ encodedString* IMAPwrapper::fetchRawBody(const RecMail&mail)
 {
     // dummy
     QValueList<int> path;
     return fetchRawPart(mail,path,false);
 }
 
 void IMAPwrapper::mvcpAllMails(Folder*fromFolder,const QString&targetFolder,AbstractMail*targetWrapper,bool moveit)
 {
-    qDebug("mvcp mail imap");
     if (targetWrapper != this) {
         AbstractMail::mvcpAllMails(fromFolder,targetFolder,targetWrapper,moveit);
         qDebug("Using generic");
         return;
     }
-    qDebug("Using internal");
     mailimap_set *set = 0;
-
-    int err = mailimap_select( m_imap, fromFolder->getName().latin1());
+    login();
+    if (!m_imap) {
+        return;
+    }
+    int err = selectMbox(fromFolder->getName());
     if ( err != MAILIMAP_NO_ERROR ) {
-        Global::statusMessage(tr("error selecting mailbox: %1").arg(m_imap->imap_response));
         return;
     }
-
     int last = m_imap->imap_selection_info->sel_exists;
     set = mailimap_set_new_interval( 1, last );
     err = mailimap_copy(m_imap,set,targetFolder.latin1());
+    mailimap_set_free( set );
     if ( err != MAILIMAP_NO_ERROR ) {
-        Global::statusMessage(tr("error copy mails: %1").arg(m_imap->imap_response));
+        QString error_msg = tr("error copy mails: %1").arg(m_imap->imap_response);
+        Global::statusMessage(error_msg);
+        qDebug(error_msg);
         return;
     }
-    mailimap_set_free( set );
     if (moveit) {
         deleteAllMail(fromFolder);
     }
 }
diff --git a/noncore/net/mail/libmailwrapper/imapwrapper.h b/noncore/net/mail/libmailwrapper/imapwrapper.h
index 07c6210..99986c2 100644
--- a/noncore/net/mail/libmailwrapper/imapwrapper.h
+++ b/noncore/net/mail/libmailwrapper/imapwrapper.h
@@ -49,26 +49,28 @@ public:
     virtual const QString&getName()const;
 
 protected:
     RecMail*parse_list_result(mailimap_msg_att*);
     void login();
 
     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