Fix retriggering of GPGMe socket notifiers in nested event loops

This resolves Bug 825
Add missing GPGMe feature checks to CMake

7 files changed, 145 insertions, 34 deletions

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index aaa2eb93..dd7034c7 100644
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -151,6 +151,73 @@ if( BUILD_LIBTDENETWORK OR BUILD_CERTMANAGER OR BUILD_KMAIL OR BUILD_KADDRESSBOO
   if( NOT HAVE_GPGME_0_4_BRANCH )
     message( STATUS "  found 'gpgme', version ${GPGME_VERSION}" )
   endif( )
+
+  # check for various GPGME features
+  tde_save( CMAKE_CXX_FLAGS )
+  tde_save( CMAKE_REQUIRED_LIBRARIES )
+  string( REGEX REPLACE "-include tqt.h" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" )
+  # See FIXME above regarding -D_FILE_OFFSET_BITS=64
+  set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GPGME_INCLUDE_DIRS} -D_FILE_OFFSET_BITS=64")
+  set( CMAKE_REQUIRED_LIBRARIES "${GPGME_LIBRARIES}")
+
+  # check for GPGME_KEYLIST_MODE_VALIDATE
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        gpgme_keylist_mode_t mode = GPGME_KEYLIST_MODE_VALIDATE;
+      };"
+      HAVE_GPGME_KEYLIST_MODE_VALIDATE )
+
+  # check for gpgme_cancel
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        gpgme_ctx_t ctx = 0;
+        gpgme_error_t e = gpgme_cancel( ctx );
+      };"
+      HAVE_GPGME_CANCEL )
+
+  # check for gpgme_key_t->keylist_mode
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        gpgme_key_t key = 0;
+        key->keylist_mode = 0;
+      };"
+      HAVE_GPGME_KEY_T_KEYLIST_MODE )
+
+  # check for gpgme_decrypt_result_t->wrong_key_usage
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        gpgme_decrypt_result_t res;
+        unsigned int wku = res->wrong_key_usage;
+      };"
+      HAVE_GPGME_WRONG_KEY_USAGE )
+
+  # check for GPGME_INCLUDE_CERTS_DEFAULT
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        int i = GPGME_INCLUDE_CERTS_DEFAULT;
+      };"
+      HAVE_GPGME_INCLUDE_CERTS_DEFAULT )
+
+  # check for gpgme_op_getauditlog
+  check_cxx_source_compiles("
+      #include <gpgme.h>
+      int main() {
+        gpgme_ctx_t ctx = 0;
+        gpgme_data_t data = 0;
+        unsigned int flags = 0;
+        gpgme_error_t e = gpgme_op_getauditlog( ctx, data, flags );
+      };"
+      HAVE_GPGME_OP_GETAUDITLOG )
+
+  # done checking for GPGME features
+  tde_restore( CMAKE_CXX_FLAGS )
+  tde_restore( CMAKE_REQUIRED_LIBRARIES )
+
 endif( )
 
 
diff --git a/certmanager/lib/ui/keylistview.cpp b/certmanager/lib/ui/keylistview.cpp
index 8e81b976..00f69500 100644
--- a/certmanager/lib/ui/keylistview.cpp
+++ b/certmanager/lib/ui/keylistview.cpp
@@ -333,13 +333,16 @@ Kleo::KeyListViewItem * Kleo::KeyListView::itemByFingerprint( const TQCString &
 
 void Kleo::KeyListView::slotRefreshKey( const GpgME::Key & key ) {
   const char * fpr = key.primaryFingerprint();
-  if ( !fpr )
+  if ( !fpr ) {
     return;
-  if ( KeyListViewItem * item = itemByFingerprint( fpr ) )
+  }
+  if ( KeyListViewItem * item = itemByFingerprint( fpr ) ) {
     item->setKey ( key );
-  else
+  }
+  else {
     // none found -> add it
     slotAddKey( key );
+  }
 }
 
 // slots for the emission of covariant signals:
diff --git a/certmanager/lib/ui/keyselectiondialog.cpp b/certmanager/lib/ui/keyselectiondialog.cpp
index 9e005d58..c46228a4 100644
--- a/certmanager/lib/ui/keyselectiondialog.cpp
+++ b/certmanager/lib/ui/keyselectiondialog.cpp
@@ -265,29 +265,33 @@ namespace {
   }
 
   const TQPixmap * ColumnStrategy::pixmap( const GpgME::Key & key, int col ) const {
-    if ( col != 0 )
+    if ( col != 0 ) {
       return 0;
+    }
     // this key did not undergo a validating keylisting yet:
-    if ( !( key.keyListMode() & GpgME::Context::Validate ) )
+    if ( !( key.keyListMode() & GpgME::Context::Validate ) ) {
       return &mKeyUnknownPix;
+    }
 
-    if ( !checkKeyUsage( key, mKeyUsage ) )
+    if ( !checkKeyUsage( key, mKeyUsage ) ) {
       return &mKeyBadPix;
+    }
 
-    if ( key.protocol() == GpgME::Context::CMS )
+    if ( key.protocol() == GpgME::Context::CMS ) {
       return &mKeyGoodPix;
+    }
 
     switch ( key.userID(0).validity() ) {
-    default:
-    case GpgME::UserID::Unknown:
-    case GpgME::UserID::Undefined:
-      return &mKeyUnknownPix;
-    case GpgME::UserID::Never:
-      return &mKeyValidPix;
-    case GpgME::UserID::Marginal:
-    case GpgME::UserID::Full:
-    case GpgME::UserID::Ultimate:
-      return &mKeyGoodPix;
+      default:
+      case GpgME::UserID::Unknown:
+      case GpgME::UserID::Undefined:
+        return &mKeyUnknownPix;
+      case GpgME::UserID::Never:
+        return &mKeyValidPix;
+      case GpgME::UserID::Marginal:
+      case GpgME::UserID::Full:
+      case GpgME::UserID::Ultimate:
+        return &mKeyGoodPix;
     }
   }
 
@@ -585,8 +589,9 @@ namespace {
 void Kleo::KeySelectionDialog::startKeyListJobForBackend( const CryptoBackend::Protocol * backend, const std::vector<GpgME::Key> & keys, bool validate ) {
   assert( backend );
   KeyListJob * job = backend->keyListJob( false, false, validate ); // local, w/o sigs, validation as givem
-  if ( !job )
+  if ( !job ) {
     return;
+  }
 
   connect( job, TQT_SIGNAL(result(const GpgME::KeyListResult&)),
 	   TQT_SLOT(slotKeyListResult(const GpgME::KeyListResult&)) );
@@ -599,8 +604,9 @@ void Kleo::KeySelectionDialog::startKeyListJobForBackend( const CryptoBackend::P
   std::transform( keys.begin(), keys.end(), std::back_inserter( fprs ), ExtractFingerprint() );
   const GpgME::Error err = job->start( fprs, mKeyUsage & SecretKeys && !( mKeyUsage & PublicKeys ) );
 
-  if ( err )
+  if ( err ) {
     return showKeyListError( this, err );
+  }
 
   // FIXME: create a MultiProgressDialog:
   (void)new ProgressDialog( job, validate ? i18n( "Checking selected keys..." ) : i18n( "Fetching keys..." ), this );
@@ -617,15 +623,18 @@ static void selectKeys( Kleo::KeyListView * klv, const std::vector<GpgME::Key> &
 }
 
 void Kleo::KeySelectionDialog::slotKeyListResult( const GpgME::KeyListResult & res ) {
-  if ( res.error() )
+  if ( res.error() ) {
     showKeyListError( this, res.error() );
-  else if ( res.isTruncated() )
+  }
+  else if ( res.isTruncated() ) {
     ++mTruncated;
+  }
 
-  if ( --mListJobCount > 0 )
+  if ( --mListJobCount > 0 ) {
     return; // not yet finished...
+  }
 
-  if ( mTruncated > 0 )
+  if ( mTruncated > 0 ) {
     KMessageBox::information( this,
 			      i18n("<qt>One backend returned truncated output.<br>"
 				   "Not all available keys are shown</qt>",
@@ -633,6 +642,7 @@ void Kleo::KeySelectionDialog::slotKeyListResult( const GpgME::KeyListResult & r
 				   "Not all available keys are shown</qt>",
 				   mTruncated),
 			      i18n("Key List Result") );
+  }
 
   mKeyListView->flushKeys();
 
@@ -677,13 +687,16 @@ void Kleo::KeySelectionDialog::slotCheckSelection( KeyListViewItem * item ) {
   mSelectedKeys.clear();
 
   if ( !mKeyListView->isMultiSelection() ) {
-    if ( item )
+    if ( item ) {
       mSelectedKeys.push_back( item->key() );
+    }
   }
 
-  for ( KeyListViewItem * it = mKeyListView->firstChild() ; it ; it = it->nextSibling() )
-    if ( it->isSelected() )
+  for ( KeyListViewItem * it = mKeyListView->firstChild() ; it ; it = it->nextSibling() ) {
+    if ( it->isSelected() ) {
       mSelectedKeys.push_back( it->key() );
+    }
+  }
 
   mKeysToCheck.clear();
   std::remove_copy_if( mSelectedKeys.begin(), mSelectedKeys.end(),
@@ -700,8 +713,9 @@ void Kleo::KeySelectionDialog::slotCheckSelection( KeyListViewItem * item ) {
 }
 
 void Kleo::KeySelectionDialog::startValidatingKeyListing() {
-  if ( mKeysToCheck.empty() )
+  if ( mKeysToCheck.empty() ) {
     return;
+  }
 
   mListJobCount = 0;
   mTruncated = 0;
@@ -711,11 +725,14 @@ void Kleo::KeySelectionDialog::startValidatingKeyListing() {
   mKeyListView->setEnabled( false );
 
   std::vector<GpgME::Key> smime, openpgp;
-  for ( std::vector<GpgME::Key>::const_iterator it = mKeysToCheck.begin() ; it != mKeysToCheck.end() ; ++it )
-    if ( it->protocol() == GpgME::Context::OpenPGP )
+  for ( std::vector<GpgME::Key>::const_iterator it = mKeysToCheck.begin() ; it != mKeysToCheck.end() ; ++it ) {
+    if ( it->protocol() == GpgME::Context::OpenPGP ) {
       openpgp.push_back( *it );
-    else
+    }
+    else {
       smime.push_back( *it );
+    }
+  }
 
   if ( !openpgp.empty() ) {
     assert( mOpenPGPBackend );
diff --git a/config.h.cmake b/config.h.cmake
index 4c4aa536..bc498ab1 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -17,6 +17,14 @@
 // libkdemanager, certmanager
 #cmakedefine HAVE_GPGME_0_4_BRANCH 1
 
+// libtdenetwork
+#cmakedefine HAVE_GPGME_KEYLIST_MODE_VALIDATE 1
+#cmakedefine HAVE_GPGME_CANCEL 1
+#cmakedefine HAVE_GPGME_KEY_T_KEYLIST_MODE 1
+#cmakedefine HAVE_GPGME_WRONG_KEY_USAGE 1
+#cmakedefine HAVE_GPGME_INCLUDE_CERTS_DEFAULT 1
+#cmakedefine HAVE_GPGME_OP_GETAUDITLOG 1
+
 // certmanager
 #cmakedefine MAX_CMD_LENGTH @MAX_CMD_LENGTH@
 #cmakedefine HAVE_C99_INITIALIZERS 1
diff --git a/kmail/kmmainwidget.cpp b/kmail/kmmainwidget.cpp
index 97f7922f..daad9221 100644
--- a/kmail/kmmainwidget.cpp
+++ b/kmail/kmmainwidget.cpp
@@ -1767,7 +1767,7 @@ void KMMainWidget::slotStartCertManager()
   certManagerProc << "kleopatra";
 
   if( !certManagerProc.start( TDEProcess::DontCare ) )
-    KMessageBox::error( this, i18n( "Could not start certificate manager; "
+    KMessageBox::error( this, i18n( "Could not start certificate manager 'kleopatra'; "
                                     "please check your installation." ),
                                     i18n( "KMail Error" ) );
   else
diff --git a/libtdenetwork/gpgmepp/callbacks.cpp b/libtdenetwork/gpgmepp/callbacks.cpp
index ba9c30bf..23cc55e8 100644
--- a/libtdenetwork/gpgmepp/callbacks.cpp
+++ b/libtdenetwork/gpgmepp/callbacks.cpp
@@ -64,9 +64,10 @@ gpgme_error_t passphrase_callback( void * opaque, const char * uid_hint, const c
   bool canceled = false;
   gpgme_error_t err = GPG_ERR_NO_ERROR;
   char * passphrase = provider ? provider->getPassphrase( uid_hint, desc, prev_was_bad, canceled ) : 0 ;
-  if ( canceled )
+  if ( canceled ) {
     err = makeError( GPG_ERR_CANCELED );
-  else
+  }
+  else {
     if ( passphrase && *passphrase ) {
       size_t passphrase_length = strlen( passphrase );
       size_t written = 0;
@@ -79,7 +80,7 @@ gpgme_error_t passphrase_callback( void * opaque, const char * uid_hint, const c
 	written += now_written;
       } while ( written < passphrase_length );
     }
-  
+  }
   if ( passphrase && *passphrase )
     wipe( passphrase, strlen( passphrase ) );
   free( passphrase );
diff --git a/libtdenetwork/qgpgme/eventloopinteractor.cpp b/libtdenetwork/qgpgme/eventloopinteractor.cpp
index 3b07189d..b6d9830d 100644
--- a/libtdenetwork/qgpgme/eventloopinteractor.cpp
+++ b/libtdenetwork/qgpgme/eventloopinteractor.cpp
@@ -30,6 +30,11 @@
 #include <tqsocketnotifier.h>
 #include <tqapplication.h>
 
+#include <tqvaluelist.h>
+
+TQValueList<int> writeActivity;
+TQValueList<int> readActivity;
+
 using namespace GpgME;
 
 QGpgME::EventLoopInteractor::EventLoopInteractor( TQObject * parent, const char * name )
@@ -77,11 +82,21 @@ void QGpgME::EventLoopInteractor::unregisterWatcher( void * tag ) {
 }
 
 void QGpgME::EventLoopInteractor::slotWriteActivity( int socket ) {
+  if (writeActivity.contains(socket)) {
+    return;
+  }
+  writeActivity.append(socket);
   actOn( socket , Write );
+  writeActivity.remove(socket);
 }
 
 void QGpgME::EventLoopInteractor::slotReadActivity( int socket ) {
+  if (readActivity.contains(socket)) {
+    return;
+  }
+  readActivity.append(socket);
   actOn( socket , Read );
+  readActivity.remove(socket);
 }
 
 void QGpgME::EventLoopInteractor::nextTrustItemEvent( GpgME::Context * context, const GpgME::TrustItem & item ) {