kmail: Avoid setting charset on non-textual parts of emails

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 3479159c7f)

kmail/kmcommands.cpp

@@ -1350,13 +1350,10 @@ KMCommand::Result KMForwardAttachedCommand::execute()
     KMMessagePart *msgPart = new KMMessagePart;
     msgPart->setTypeStr("message");
     msgPart->setSubtypeStr("rfc822");
-    msgPart->setCharset(msg->charset());
     msgPart->setName("forwarded message");
     msgPart->setContentDescription(msg->from()+": "+msg->subject());
     msgPart->setContentDisposition( "inline" );
-    // THIS HAS TO BE AFTER setCte()!!!!
     msgPart->setMessageBody( KMail::Util::ByteArray( msg->asDwString() ) );
-    msgPart->setCharset("");
 
     fwdMsg->link(msg, KMMsgStatusForwarded);
     mWin->addAttach(msgPart);
@@ -2893,7 +2890,9 @@ KMCommand::Result KMResendMessageCommand::execute()
    whiteList << "To" << "Cc" << "Bcc" << "Subject";
    newMsg->sanitizeHeaders( whiteList );
 
-   newMsg->setCharset(msg->codec()->mimeName());
+   if( newMsg->type() == DwMime::kTypeText) {
+     newMsg->setCharset(msg->codec()->mimeName());
+   }
    newMsg->setParent( 0 );
 
    // make sure we have an identity set, default, if necessary

kmail/kmcomposewin.cpp

@@ -3286,7 +3286,6 @@ void KMComposeWin::slotAttachProperties()
       }
     }
   }
-  if (msgPart->typeStr().lower() != "text") msgPart->setCharset(TQCString());
 }
 
 //-----------------------------------------------------------------------------

kmail/kmkernel.cpp

@@ -45,6 +45,7 @@ using TDERecentAddress::RecentAddresses;
 #include "kmsystemtray.h"
 #include "transportmanager.h"
 #include "importarchivedialog.h"
+#include <mimelib/enum.h>
 
 #include <twin.h>
 #include "kmailicalifaceimpl.h"
@@ -574,7 +575,7 @@ int KMKernel::openComposer (const TQString &to, const TQString &cc,
        if( ! GlobalSettings::self()->exchangeCompatibleInvitations() ) {
         msgPart->setContentDisposition( attachContDisp );
       }
-      if( !attachCharset.isEmpty() ) {
+      if( !attachCharset.isEmpty() && (msgPart->type() == DwMime::kTypeText) ) {
         // kdDebug(5006) << "KMKernel::openComposer set attachCharset to "
         // << attachCharset << endl;
         msgPart->setCharset( attachCharset );

kmail/kmmessage.cpp

@@ -3055,8 +3055,11 @@ void applyHeadersToMessagePart( DwHeaders& headers, KMMessagePart* aPart )
     DwParameter *param = ct.FirstParameter();
     while(param)
     {
-      if (!tqstricmp(param->Attribute().c_str(), "charset"))
-        aPart->setCharset(TQCString(param->Value().c_str()).lower());
+      if (!tqstricmp(param->Attribute().c_str(), "charset")) {
+        if (aPart->type() == DwMime::kTypeText) {
+          aPart->setCharset(TQCString(param->Value().c_str()).lower());
+        }
+      }
       else if (!tqstrnicmp(param->Attribute().c_str(), "name*", 5))
         aPart->setName(KMMsgBase::decodeRFC2231String(KMMsgBase::extractRFC2231HeaderField( param->Value().c_str(), "name" )));
       else {

kmail/messagecomposer.cpp

@@ -1251,7 +1251,9 @@ void MessageComposer::composeInlineOpenPGPMessage( KMMessage& theMessage,
     }
     mOldBodyPart.setContentDisposition( "inline" );
     mOldBodyPart.setOriginalContentTypeStr( oldContentType.utf8() );
-    mOldBodyPart.setCharset(mCharset);
+    if (mOldBodyPart.type() == DwMime::kTypeText) {
+      mOldBodyPart.setCharset(mCharset);
+    }
     addBodyAndAttachments( msg, splitInfo, false, false, mOldBodyPart, Kleo::InlineOpenPGPFormat );
     mMessageList.push_back( msg );
     if ( it == splitInfos.begin() ) {