Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 211 insertions, 0 deletions

diff --git a/kmail/bodyvisitor.cpp b/kmail/bodyvisitor.cpp
new file mode 100644
index 000000000..99af66196
--- /dev/null
+++ b/kmail/bodyvisitor.cpp
@@ -0,0 +1,211 @@
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "bodyvisitor.h"
+#include "kmmsgpart.h"
+#include "attachmentstrategy.h"
+#include <kdebug.h>
+
+namespace KMail {
+
+  BodyVisitor* BodyVisitorFactory::getVisitor( const AttachmentStrategy* strategy )
+  {
+    if (strategy == AttachmentStrategy::smart())
+    {
+      return new BodyVisitorSmart();
+    } else if (strategy == AttachmentStrategy::iconic())
+    {
+      return new BodyVisitorHidden();
+    } else if (strategy == AttachmentStrategy::inlined())
+    {
+      return new BodyVisitorInline();
+    } else if (strategy == AttachmentStrategy::hidden())
+    {
+      return new BodyVisitorHidden();
+    }
+    // default
+    return new BodyVisitorSmart();
+  }
+
+  //=============================================================================
+
+  BodyVisitor::BodyVisitor()
+  {
+    // parts that are probably always ok to load
+    mBasicList.clear();
+    // body text
+    mBasicList += "TEXT/PLAIN";
+    mBasicList += "TEXT/HTML";
+    mBasicList += "MESSAGE/DELIVERY-STATUS";
+    // pgp stuff
+    mBasicList += "APPLICATION/PGP-SIGNATURE";
+    mBasicList += "APPLICATION/PGP";
+    mBasicList += "APPLICATION/PGP-ENCRYPTED";
+    mBasicList += "APPLICATION/PKCS7-SIGNATURE";
+    // groupware
+    mBasicList += "APPLICATION/MS-TNEF";
+    mBasicList += "TEXT/CALENDAR";
+    mBasicList += "TEXT/X-VCARD";
+  }
+
+  //-----------------------------------------------------------------------------
+  BodyVisitor::~BodyVisitor()
+  {
+  }
+
+  //-----------------------------------------------------------------------------
+  void BodyVisitor::visit( KMMessagePart * part )
+  {
+    mParts.append( part );
+  }
+
+  //-----------------------------------------------------------------------------
+  void BodyVisitor::visit( QPtrList<KMMessagePart> & list )
+  {
+    mParts = list;
+  }
+
+  //-----------------------------------------------------------------------------
+  QPtrList<KMMessagePart> BodyVisitor::partsToLoad()
+  {
+    QPtrListIterator<KMMessagePart> it( mParts );
+    QPtrList<KMMessagePart> selected;
+    KMMessagePart *part = 0;
+    bool headerCheck = false;
+    while ( (part = it.current()) != 0 )
+    {
+      ++it;
+      // skip this part if the parent part is already loading
+      if ( part->parent() &&
+           selected.contains( part->parent() ) &&
+           part->loadPart() )
+        continue;
+
+      if ( part->originalContentTypeStr().contains("SIGNED") )
+      {
+        // signed messages have to be loaded completely
+        // so construct a new dummy part that loads the body
+        KMMessagePart *fake = new KMMessagePart();
+        fake->setPartSpecifier( "TEXT" );
+        fake->setOriginalContentTypeStr("");
+        fake->setLoadPart( true );
+        selected.append( fake );
+        break;
+      }
+
+      if ( headerCheck && !part->partSpecifier().endsWith(".HEADER") )
+      {
+        // this is an embedded simple message (not multipart) so we get no header part
+        // from imap. As we probably need to load the header (e.g. in smart or inline mode)
+        // we add a fake part that is not included in the message itself
+        KMMessagePart *fake = new KMMessagePart();
+        QString partId = part->partSpecifier().section( '.', 0, -2 )+".HEADER";
+        fake->setPartSpecifier( partId );
+        fake->setOriginalContentTypeStr("");
+        fake->setLoadPart( true );
+        if ( addPartToList( fake ) )
+          selected.append( fake );
+      }
+
+      if ( part->originalContentTypeStr() == "MESSAGE/RFC822" )
+        headerCheck = true;
+      else
+        headerCheck = false;
+
+      // check whether to load this part or not:
+      // look at the basic list, ask the subclass and check the parent
+      if ( mBasicList.contains( part->originalContentTypeStr() ) ||
+           parentNeedsLoading( part ) ||
+           addPartToList( part ) )
+      {
+        if ( part->typeStr() != "MULTIPART" ||
+             part->partSpecifier().endsWith(".HEADER") )
+        {
+          // load the part itself
+          part->setLoadPart( true );
+        }
+      }
+      if ( !part->partSpecifier().endsWith(".HEADER") &&
+           part->typeStr() != "MULTIPART" )
+        part->setLoadHeaders( true ); // load MIME header
+
+      if ( part->loadHeaders() || part->loadPart() )
+        selected.append( part );
+    }
+    return selected;
+  }
+
+  //-----------------------------------------------------------------------------
+  bool BodyVisitor::parentNeedsLoading( KMMessagePart *msgPart )
+  {
+    KMMessagePart *part = msgPart;
+    while ( part )
+    {
+      if ( part->parent() &&
+           ( part->parent()->originalContentTypeStr() == "MULTIPART/SIGNED" ||
+           ( msgPart->originalContentTypeStr() == "APPLICATION/OCTET-STREAM" &&
+             part->parent()->originalContentTypeStr() == "MULTIPART/ENCRYPTED" ) ) )
+        return true;
+
+      part = part->parent();
+    }
+    return false;
+  }
+
+  //=============================================================================
+
+  BodyVisitorSmart::BodyVisitorSmart()
+    : BodyVisitor()
+  {
+  }
+
+  //-----------------------------------------------------------------------------
+  bool BodyVisitorSmart::addPartToList( KMMessagePart * part )
+  {
+    // header of an encapsulated message
+    if ( part->partSpecifier().endsWith(".HEADER") )
+      return true;
+
+    return false;
+  }
+
+  //=============================================================================
+
+  BodyVisitorInline::BodyVisitorInline()
+    : BodyVisitor()
+  {
+  }
+
+  //-----------------------------------------------------------------------------
+  bool BodyVisitorInline::addPartToList( KMMessagePart * part )
+  {
+    // header of an encapsulated message
+    if ( part->partSpecifier().endsWith(".HEADER") )
+      return true;
+    else if ( part->typeStr() == "IMAGE" ) // images
+      return true;
+    else if ( part->typeStr() == "TEXT" ) // text, diff and stuff
+      return true;
+
+    return false;
+  }
+
+  //=============================================================================
+
+  BodyVisitorHidden::BodyVisitorHidden()
+    : BodyVisitor()
+  {
+  }
+
+  //-----------------------------------------------------------------------------
+  bool BodyVisitorHidden::addPartToList( KMMessagePart * part )
+  {
+    // header of an encapsulated message
+    if ( part->partSpecifier().endsWith(".HEADER") )
+      return true;
+
+    return false;
+  }
+
+}