fetching attachments from a pop3mail works.

this moment the whole message will be hold in memory until
I have an idea for a clean(!) filebased cache which will not get to
large.
Thats why the biggest pop3 mail we can fetch is 5MB, this should be
enough.

8 files changed, 112 insertions, 18 deletions

diff --git a/noncore/net/mail/abstractmail.cpp b/noncore/net/mail/abstractmail.cpp
index 3d76c96..626b9aa 100644
--- a/noncore/net/mail/abstractmail.cpp
+++ b/noncore/net/mail/abstractmail.cpp
@@ -1,18 +1,20 @@
 #include "abstractmail.h"
 #include "imapwrapper.h"
 #include "pop3wrapper.h"
 #include "mailtypes.h"
 
 #include <qstring.h>
+#include <qfile.h>
+#include <qtextstream.h>
 #include <stdlib.h>
 #include <libetpan/mailmime_content.h>
 
 AbstractMail* AbstractMail::getWrapper(IMAPaccount *a)
 {
     return new IMAPwrapper(a);
 }
 
 AbstractMail* AbstractMail::getWrapper(POP3account *a)
 {
     return new POP3wrapper(a);
 }
@@ -57,12 +59,25 @@ QString AbstractMail::convert_String(const char*text)
         text, strlen(text),&index, "iso-8859-1",&res);
     if (err != MAILIMF_NO_ERROR) {
         if (res) free(res);
         return QString(text);
     }
     if (res) {
         QString result(res);
         free(res);
         return result;
     }
     return QString(text);
 }
+
+/* cp & paste from launcher */
+QString AbstractMail::gen_attachment_id()
+{
+    QFile file( "/proc/sys/kernel/random/uuid" );
+    if (!file.open(IO_ReadOnly ) )
+        return QString::null;
+
+    QTextStream stream(&file);
+
+    return "{" + stream.read().stripWhiteSpace() + "}";
+}
+
diff --git a/noncore/net/mail/abstractmail.h b/noncore/net/mail/abstractmail.h
index c16e9c0..8dd2e12 100644
--- a/noncore/net/mail/abstractmail.h
+++ b/noncore/net/mail/abstractmail.h
@@ -21,16 +21,19 @@ public:
     virtual QList<Folder>* listFolders()=0;
     virtual void listMessages(const QString & mailbox,QList<RecMail>&target )=0;
     virtual RecBody fetchBody(const RecMail&mail)=0;
     virtual QString fetchTextPart(const RecMail&mail,const RecPart&part)=0;
     virtual encodedString* fetchDecodedPart(const RecMail&mail,const RecPart&part)=0;
     virtual encodedString* fetchRawPart(const RecMail&mail,const RecPart&part)=0;
 
     virtual void deleteMail(const RecMail&mail)=0;
     virtual void answeredMail(const RecMail&mail)=0;
 
     static AbstractMail* getWrapper(IMAPaccount *a);
     static AbstractMail* getWrapper(POP3account *a);
+
+protected:
     static encodedString*decode_String(const encodedString*text,const QString&enc);
     static QString convert_String(const char*text);
+    static QString gen_attachment_id();
 };
 #endif
diff --git a/noncore/net/mail/libmailwrapper/abstractmail.cpp b/noncore/net/mail/libmailwrapper/abstractmail.cpp
index 3d76c96..626b9aa 100644
--- a/noncore/net/mail/libmailwrapper/abstractmail.cpp
+++ b/noncore/net/mail/libmailwrapper/abstractmail.cpp
@@ -1,18 +1,20 @@
 #include "abstractmail.h"
 #include "imapwrapper.h"
 #include "pop3wrapper.h"
 #include "mailtypes.h"
 
 #include <qstring.h>
+#include <qfile.h>
+#include <qtextstream.h>
 #include <stdlib.h>
 #include <libetpan/mailmime_content.h>
 
 AbstractMail* AbstractMail::getWrapper(IMAPaccount *a)
 {
     return new IMAPwrapper(a);
 }
 
 AbstractMail* AbstractMail::getWrapper(POP3account *a)
 {
     return new POP3wrapper(a);
 }
@@ -57,12 +59,25 @@ QString AbstractMail::convert_String(const char*text)
         text, strlen(text),&index, "iso-8859-1",&res);
     if (err != MAILIMF_NO_ERROR) {
         if (res) free(res);
         return QString(text);
     }
     if (res) {
         QString result(res);
         free(res);
         return result;
     }
     return QString(text);
 }
+
+/* cp & paste from launcher */
+QString AbstractMail::gen_attachment_id()
+{
+    QFile file( "/proc/sys/kernel/random/uuid" );
+    if (!file.open(IO_ReadOnly ) )
+        return QString::null;
+
+    QTextStream stream(&file);
+
+    return "{" + stream.read().stripWhiteSpace() + "}";
+}
+
diff --git a/noncore/net/mail/libmailwrapper/abstractmail.h b/noncore/net/mail/libmailwrapper/abstractmail.h
index c16e9c0..8dd2e12 100644
--- a/noncore/net/mail/libmailwrapper/abstractmail.h
+++ b/noncore/net/mail/libmailwrapper/abstractmail.h
@@ -21,16 +21,19 @@ public:
     virtual QList<Folder>* listFolders()=0;
     virtual void listMessages(const QString & mailbox,QList<RecMail>&target )=0;
     virtual RecBody fetchBody(const RecMail&mail)=0;
     virtual QString fetchTextPart(const RecMail&mail,const RecPart&part)=0;
     virtual encodedString* fetchDecodedPart(const RecMail&mail,const RecPart&part)=0;
     virtual encodedString* fetchRawPart(const RecMail&mail,const RecPart&part)=0;
 
     virtual void deleteMail(const RecMail&mail)=0;
     virtual void answeredMail(const RecMail&mail)=0;
 
     static AbstractMail* getWrapper(IMAPaccount *a);
     static AbstractMail* getWrapper(POP3account *a);
+
+protected:
     static encodedString*decode_String(const encodedString*text,const QString&enc);
     static QString convert_String(const char*text);
+    static QString gen_attachment_id();
 };
 #endif
diff --git a/noncore/net/mail/libmailwrapper/pop3wrapper.cpp b/noncore/net/mail/libmailwrapper/pop3wrapper.cpp
index 65cd4ba..d3447f4 100644
--- a/noncore/net/mail/libmailwrapper/pop3wrapper.cpp
+++ b/noncore/net/mail/libmailwrapper/pop3wrapper.cpp
@@ -7,33 +7,46 @@
 #include <libetpan/data_message_driver.h>
 #include <qfile.h>
 
 /* we don't fetch messages larger than 5 MB */
 #define HARD_MSG_SIZE_LIMIT 5242880
 
 POP3wrapper::POP3wrapper( POP3account *a )
 {
     account = a;
     m_pop3 = NULL;
     msgTempName = a->getFileName()+"_msg_cache";
     last_msg_id = 0;
+    bodyCache.clear();
 }
 
 POP3wrapper::~POP3wrapper()
 {
     logout();
     QFile msg_cache(msgTempName);
     if (msg_cache.exists()) {
         msg_cache.remove();
     }
+    cleanUpCache();
+}
+
+void POP3wrapper::cleanUpCache()
+{
+    QMap<QString,encodedString*>::Iterator it = bodyCache.begin();
+    for (;it!=bodyCache.end();++it) {
+        encodedString*t = it.data();
+        //it.setValue(0);
+        if (t) delete t;
+    }
+    bodyCache.clear();
 }
 
 void POP3wrapper::pop3_progress( size_t current, size_t maximum )
 {
     //qDebug( "POP3: %i of %i", current, maximum );
 }
 
 RecBody POP3wrapper::fetchBody( const RecMail &mail )
 {
     int err = MAILPOP3_NO_ERROR;
     char *message;
     size_t length = 0;
@@ -42,24 +55,25 @@ RecBody POP3wrapper::fetchBody( const RecMail &mail )
     if ( !m_pop3 ) {
         return RecBody();
     }
 
     RecBody body;
     
     QFile msg_cache(msgTempName);
 
     if (mail.Msgsize()>HARD_MSG_SIZE_LIMIT) {
         qDebug("Message to large: %i",mail.Msgsize());
         return body;
     }
+    cleanUpCache();
     if (mail.getNumber()!=last_msg_id) {
         if (msg_cache.exists()) {
             msg_cache.remove();
         }
         msg_cache.open(IO_ReadWrite|IO_Truncate);
         last_msg_id = mail.getNumber();
         err = mailpop3_retr( m_pop3, mail.getNumber(), &message, &length );    
         if ( err != MAILPOP3_NO_ERROR ) {
             qDebug( "POP3: error retrieving body with index %i", mail.getNumber() );
             last_msg_id = 0;
             return RecBody();
         }
@@ -396,51 +410,60 @@ void POP3wrapper::logout()
 QList<Folder>* POP3wrapper::listFolders()
 {
     /* TODO: integrate MH directories 
        but not before version 0.1 ;)
     */
     QList<Folder> * folders = new QList<Folder>();
     folders->setAutoDelete( false );
     Folder*inb=new Folder("INBOX","/");
     folders->append(inb);
     return folders;
 }
 
-QString POP3wrapper::fetchTextPart(const RecMail&,const RecPart&)
+QString POP3wrapper::fetchTextPart(const RecMail&mail,const RecPart&part)
 {
-    return "";
+    encodedString*t = fetchDecodedPart(mail,part);
+    QString text=t->Content();
+    delete t;
+    return text;
 }
 
 void POP3wrapper::deleteMail(const RecMail&mail)
 {
     login();
     if (!m_pop3) return;
     int err = mailpop3_dele(m_pop3,mail.getNumber());
     if (err != MAILPOP3_NO_ERROR) {
         qDebug("error deleting mail");
     }
 }
 
 void POP3wrapper::answeredMail(const RecMail&)
 {
 }
 
-encodedString* POP3wrapper::fetchDecodedPart(const RecMail&,const RecPart&)
+encodedString* POP3wrapper::fetchDecodedPart(const RecMail&,const RecPart&part)
 {
-    return new encodedString();
+    QMap<QString,encodedString*>::ConstIterator it = bodyCache.find(part.Identifier());
+    if (it==bodyCache.end()) return new encodedString();
+    encodedString*t = decode_String(it.data(),part.Encoding());
+    return t;
 }
 
-encodedString* POP3wrapper::fetchRawPart(const RecMail&,const RecPart&)
+encodedString* POP3wrapper::fetchRawPart(const RecMail&mail,const RecPart&part)
 {
-    return new encodedString();
+    QMap<QString,encodedString*>::ConstIterator it = bodyCache.find(part.Identifier());
+    if (it==bodyCache.end()) return new encodedString();
+    encodedString*t = it.data();
+    return t;
 }
 
 void POP3wrapper::traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rec)
 {
     if (current_rec >= 10) {
         qDebug("too deep recursion!");
     }
     if (!message || !mime) {
         return;
     }
     int r;
     char*data = 0;
@@ -456,26 +479,27 @@ void POP3wrapper::traverseBody(RecBody&target,mailmessage*message,mailmime*mime,
         part.setSize(len);
         fillSingleBody(part,message,mime);
         if (part.Type()=="text" && target.Bodytext().isNull()) {
             encodedString*r = new encodedString();
             r->setContent(data,len);
             encodedString*res = decode_String(r,part.Encoding());
             b = QString(res->Content());
             delete r;
             delete res;
             target.setBodytext(b);
             target.setDescription(part);
         } else {
-            /* TODO: Add the content to a list and store it for later use */
-            if (data) free(data);
+            b = gen_attachment_id();
+            part.setIdentifier(b);
+            bodyCache[b]=new encodedString(data,len);
             target.addPart(part);
         }
         break;
     case MAILMIME_MULTIPLE:
         for (cur = clist_begin(mime->mm_data.mm_multipart.mm_mp_list) ; cur != NULL ; cur = clist_next(cur)) {
             traverseBody(target,message, (mailmime*)clist_content(cur),current_rec+1);
         }
         break;
     case MAILMIME_MESSAGE:
         if (mime->mm_data.mm_message.mm_msg_mime != NULL) {
             traverseBody(target,message,mime->mm_data.mm_message.mm_msg_mime,current_rec+1);
         }
diff --git a/noncore/net/mail/libmailwrapper/pop3wrapper.h b/noncore/net/mail/libmailwrapper/pop3wrapper.h
index b17928e..a31a145 100644
--- a/noncore/net/mail/libmailwrapper/pop3wrapper.h
+++ b/noncore/net/mail/libmailwrapper/pop3wrapper.h
@@ -1,17 +1,19 @@
 #ifndef __POP3WRAPPER
 #define __POP3WRAPPER
 
 #include "mailwrapper.h"
 #include "abstractmail.h"
+#include <qmap.h>
+#include <qstring.h>
 
 class RecMail;
 class RecBody;
 class encodedString;
 struct mailpop3;
 struct mailmessage;
 struct mailmime;
 struct mailmime_mechanism;
 
 class POP3wrapper : public AbstractMail
 {
     Q_OBJECT
@@ -35,24 +37,27 @@ public:
 protected:
     void login();
     void logout();
     
     RecMail *parseHeader( const char *header );
     RecBody parseMail( char *message );
     QString parseMailboxList( mailimf_mailbox_list *list );
     QString parseMailbox( mailimf_mailbox *box );
     QString parseGroup( mailimf_group *group );
     QString parseAddressList( mailimf_address_list *list );
     QString parseDateTime( mailimf_date_time *date );
     
-    static void traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rek=0);
+    void cleanUpCache();
+    
+    void traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rek=0);
     static void fillSingleBody(RecPart&target,mailmessage*message,mailmime*mime);
     static void fillParameters(RecPart&target,clist*parameters);
     static QString POP3wrapper::getencoding(mailmime_mechanism*aEnc);
 
     POP3account *account;
     mailpop3 *m_pop3;
     QString msgTempName;
     unsigned int last_msg_id;
+    QMap<QString,encodedString*> bodyCache;
 };
 
 #endif
diff --git a/noncore/net/mail/pop3wrapper.cpp b/noncore/net/mail/pop3wrapper.cpp
index 65cd4ba..d3447f4 100644
--- a/noncore/net/mail/pop3wrapper.cpp
+++ b/noncore/net/mail/pop3wrapper.cpp
@@ -7,33 +7,46 @@
 #include <libetpan/data_message_driver.h>
 #include <qfile.h>
 
 /* we don't fetch messages larger than 5 MB */
 #define HARD_MSG_SIZE_LIMIT 5242880
 
 POP3wrapper::POP3wrapper( POP3account *a )
 {
     account = a;
     m_pop3 = NULL;
     msgTempName = a->getFileName()+"_msg_cache";
     last_msg_id = 0;
+    bodyCache.clear();
 }
 
 POP3wrapper::~POP3wrapper()
 {
     logout();
     QFile msg_cache(msgTempName);
     if (msg_cache.exists()) {
         msg_cache.remove();
     }
+    cleanUpCache();
+}
+
+void POP3wrapper::cleanUpCache()
+{
+    QMap<QString,encodedString*>::Iterator it = bodyCache.begin();
+    for (;it!=bodyCache.end();++it) {
+        encodedString*t = it.data();
+        //it.setValue(0);
+        if (t) delete t;
+    }
+    bodyCache.clear();
 }
 
 void POP3wrapper::pop3_progress( size_t current, size_t maximum )
 {
     //qDebug( "POP3: %i of %i", current, maximum );
 }
 
 RecBody POP3wrapper::fetchBody( const RecMail &mail )
 {
     int err = MAILPOP3_NO_ERROR;
     char *message;
     size_t length = 0;
@@ -42,24 +55,25 @@ RecBody POP3wrapper::fetchBody( const RecMail &mail )
     if ( !m_pop3 ) {
         return RecBody();
     }
 
     RecBody body;
     
     QFile msg_cache(msgTempName);
 
     if (mail.Msgsize()>HARD_MSG_SIZE_LIMIT) {
         qDebug("Message to large: %i",mail.Msgsize());
         return body;
     }
+    cleanUpCache();
     if (mail.getNumber()!=last_msg_id) {
         if (msg_cache.exists()) {
             msg_cache.remove();
         }
         msg_cache.open(IO_ReadWrite|IO_Truncate);
         last_msg_id = mail.getNumber();
         err = mailpop3_retr( m_pop3, mail.getNumber(), &message, &length );    
         if ( err != MAILPOP3_NO_ERROR ) {
             qDebug( "POP3: error retrieving body with index %i", mail.getNumber() );
             last_msg_id = 0;
             return RecBody();
         }
@@ -396,51 +410,60 @@ void POP3wrapper::logout()
 QList<Folder>* POP3wrapper::listFolders()
 {
     /* TODO: integrate MH directories 
        but not before version 0.1 ;)
     */
     QList<Folder> * folders = new QList<Folder>();
     folders->setAutoDelete( false );
     Folder*inb=new Folder("INBOX","/");
     folders->append(inb);
     return folders;
 }
 
-QString POP3wrapper::fetchTextPart(const RecMail&,const RecPart&)
+QString POP3wrapper::fetchTextPart(const RecMail&mail,const RecPart&part)
 {
-    return "";
+    encodedString*t = fetchDecodedPart(mail,part);
+    QString text=t->Content();
+    delete t;
+    return text;
 }
 
 void POP3wrapper::deleteMail(const RecMail&mail)
 {
     login();
     if (!m_pop3) return;
     int err = mailpop3_dele(m_pop3,mail.getNumber());
     if (err != MAILPOP3_NO_ERROR) {
         qDebug("error deleting mail");
     }
 }
 
 void POP3wrapper::answeredMail(const RecMail&)
 {
 }
 
-encodedString* POP3wrapper::fetchDecodedPart(const RecMail&,const RecPart&)
+encodedString* POP3wrapper::fetchDecodedPart(const RecMail&,const RecPart&part)
 {
-    return new encodedString();
+    QMap<QString,encodedString*>::ConstIterator it = bodyCache.find(part.Identifier());
+    if (it==bodyCache.end()) return new encodedString();
+    encodedString*t = decode_String(it.data(),part.Encoding());
+    return t;
 }
 
-encodedString* POP3wrapper::fetchRawPart(const RecMail&,const RecPart&)
+encodedString* POP3wrapper::fetchRawPart(const RecMail&mail,const RecPart&part)
 {
-    return new encodedString();
+    QMap<QString,encodedString*>::ConstIterator it = bodyCache.find(part.Identifier());
+    if (it==bodyCache.end()) return new encodedString();
+    encodedString*t = it.data();
+    return t;
 }
 
 void POP3wrapper::traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rec)
 {
     if (current_rec >= 10) {
         qDebug("too deep recursion!");
     }
     if (!message || !mime) {
         return;
     }
     int r;
     char*data = 0;
@@ -456,26 +479,27 @@ void POP3wrapper::traverseBody(RecBody&target,mailmessage*message,mailmime*mime,
         part.setSize(len);
         fillSingleBody(part,message,mime);
         if (part.Type()=="text" && target.Bodytext().isNull()) {
             encodedString*r = new encodedString();
             r->setContent(data,len);
             encodedString*res = decode_String(r,part.Encoding());
             b = QString(res->Content());
             delete r;
             delete res;
             target.setBodytext(b);
             target.setDescription(part);
         } else {
-            /* TODO: Add the content to a list and store it for later use */
-            if (data) free(data);
+            b = gen_attachment_id();
+            part.setIdentifier(b);
+            bodyCache[b]=new encodedString(data,len);
             target.addPart(part);
         }
         break;
     case MAILMIME_MULTIPLE:
         for (cur = clist_begin(mime->mm_data.mm_multipart.mm_mp_list) ; cur != NULL ; cur = clist_next(cur)) {
             traverseBody(target,message, (mailmime*)clist_content(cur),current_rec+1);
         }
         break;
     case MAILMIME_MESSAGE:
         if (mime->mm_data.mm_message.mm_msg_mime != NULL) {
             traverseBody(target,message,mime->mm_data.mm_message.mm_msg_mime,current_rec+1);
         }
diff --git a/noncore/net/mail/pop3wrapper.h b/noncore/net/mail/pop3wrapper.h
index b17928e..a31a145 100644
--- a/noncore/net/mail/pop3wrapper.h
+++ b/noncore/net/mail/pop3wrapper.h
@@ -1,17 +1,19 @@
 #ifndef __POP3WRAPPER
 #define __POP3WRAPPER
 
 #include "mailwrapper.h"
 #include "abstractmail.h"
+#include <qmap.h>
+#include <qstring.h>
 
 class RecMail;
 class RecBody;
 class encodedString;
 struct mailpop3;
 struct mailmessage;
 struct mailmime;
 struct mailmime_mechanism;
 
 class POP3wrapper : public AbstractMail
 {
     Q_OBJECT
@@ -35,24 +37,27 @@ public:
 protected:
     void login();
     void logout();
     
     RecMail *parseHeader( const char *header );
     RecBody parseMail( char *message );
     QString parseMailboxList( mailimf_mailbox_list *list );
     QString parseMailbox( mailimf_mailbox *box );
     QString parseGroup( mailimf_group *group );
     QString parseAddressList( mailimf_address_list *list );
     QString parseDateTime( mailimf_date_time *date );
     
-    static void traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rek=0);
+    void cleanUpCache();
+    
+    void traverseBody(RecBody&target,mailmessage*message,mailmime*mime,unsigned int current_rek=0);
     static void fillSingleBody(RecPart&target,mailmessage*message,mailmime*mime);
     static void fillParameters(RecPart&target,clist*parameters);
     static QString POP3wrapper::getencoding(mailmime_mechanism*aEnc);
 
     POP3account *account;
     mailpop3 *m_pop3;
     QString msgTempName;
     unsigned int last_msg_id;
+    QMap<QString,encodedString*> bodyCache;
 };
 
 #endif