Add information about trust signatures to UserIDListModel

GnuPG-bug-id: 5245

CMakeLists.txt

@@ -45,6 +45,9 @@ find_package(Gpgmepp ${GPGMEPP_LIB_VERSION} CONFIG REQUIRED)
 set_package_properties(Gpgmepp PROPERTIES DESCRIPTION "GpgME++ Library" URL "https://www.gnupg.org" TYPE REQUIRED PURPOSE "GpgME++ is required for OpenPGP support")
 find_package(QGpgme ${GPGMEPP_LIB_VERSION} CONFIG REQUIRED)
 message(STATUS "GPGME Version ${Gpgmepp_VERSION}")
+if (Gpgmepp_VERSION VERSION_GREATER_EQUAL "1.15.2")
+    set(GPGMEPP_SUPPORTS_TRUST_SIGNATURES 1)
+endif()
 
 find_package(Boost 1.34.0)
 set_package_properties(Boost PROPERTIES DESCRIPTION "Boost C++ Libraries" URL "https://www.boost.org" TYPE REQUIRED PURPOSE "Boost is required for building most KDEPIM applications")
@@ -92,6 +95,9 @@ install(FILES
   DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5} COMPONENT Devel
 )
 
+configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config-libkleo.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-libkleo.h)
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
+
 option(USE_UNITY_CMAKE_SUPPORT "Use UNITY cmake support (speedup compile time)" OFF)
 
 set(COMPILE_WITH_UNITY_CMAKE_SUPPORT OFF)

config-libkleo.h.cmake

+/* Defined if GpgME++ supports trust signatures */
+#cmakedefine GPGMEPP_SUPPORTS_TRUST_SIGNATURES 1

src/models/useridlistmodel.cpp

@@ -4,10 +4,14 @@
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
     SPDX-FileCopyrightText: 2016 Andre Heinecke <aheinecke@gnupg.org>
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
+#include <config-libkleo.h>
+
 #include "useridlistmodel.h"
 
 #include "keycache.h"
@@ -59,6 +63,10 @@ public:
             }
         }
         mItemData << lastNotation;
+
+#ifdef GPGMEPP_SUPPORTS_TRUST_SIGNATURES
+        mItemData << Formatting::trustSignatureDomain(sig);
+#endif
     }
 
     explicit UIDModelItem(const UserID &uid, UIDModelItem *parentItem)
@@ -79,6 +87,9 @@ public:
                   << i18n("Status")
                   << i18n("Exportable")
                   << i18n("Tags");
+#ifdef GPGMEPP_SUPPORTS_TRUST_SIGNATURES
+        mItemData << i18n("Trust Signature For");
+#endif
     }
 
     ~UIDModelItem()
@@ -127,6 +138,8 @@ public:
         if (!mSig.isNull()) {
             if (column == static_cast<int>(UserIDListModel::Column::Status)) {
                 return i18n("class %1", mSig.certClass());
+            } else if (column == static_cast<int>(UserIDListModel::Column::TrustSignatureDomain)) {
+                return Formatting::trustSignature(mSig);
             }
         }
         return mItemData.value(column);

src/models/useridlistmodel.h

@@ -4,6 +4,8 @@
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
     SPDX-FileCopyrightText: 2016 Andre Heinecke <aheinecke@gnupg.org>
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
@@ -36,6 +38,7 @@ public:
         Status,
         Exportable,
         Tags,
+        TrustSignatureDomain,
     };
 
     explicit UserIDListModel(QObject *parent = nullptr);

src/utils/formatting.cpp

 /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; -*-
-
     utils/formatting.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
+#include <config-libkleo.h>
+
 #include "formatting.h"
 #include "kleo/dn.h"
 #include "kleo/keyfiltermanager.h"
@@ -1203,3 +1206,47 @@ QString Formatting::deVsString(bool compliant)
     }
     return filter->name();
 }
+
+namespace
+{
+QString formatTrustScope(const char *trustScope)
+{
+    static const QRegularExpression escapedNonAlphaNum{QStringLiteral(R"(\\([^0-9A-Za-z]))")};
+
+    const auto scopeRegExp = QString::fromUtf8(trustScope);
+    if (scopeRegExp.startsWith(u"<[^>]+[@.]") && scopeRegExp.endsWith(u">$")) {
+        // looks like a trust scope regular expression created by gpg
+        auto domain = scopeRegExp.mid(10, scopeRegExp.size() - 10 - 2);
+        domain.replace(escapedNonAlphaNum, QStringLiteral(R"(\1)"));
+        return domain;
+    }
+    return scopeRegExp;
+}
+}
+
+QString Formatting::trustSignatureDomain(const GpgME::UserID::Signature &sig)
+{
+#ifdef GPGMEPP_SUPPORTS_TRUST_SIGNATURES
+    return formatTrustScope(sig.trustScope());
+#else
+    return {};
+#endif
+}
+
+QString Formatting::trustSignature(const GpgME::UserID::Signature &sig)
+{
+#ifdef GPGMEPP_SUPPORTS_TRUST_SIGNATURES
+    switch (sig.trustValue()) {
+    case TrustSignatureTrust::Partial:
+        return i18nc("Certifies this key as partially trusted introducer for 'domain name'.",
+                     "Certifies this key as partially trusted introducer for '%1'.", trustSignatureDomain(sig));
+    case TrustSignatureTrust::Complete:
+        return i18nc("Certifies this key as fully trusted introducer for 'domain name'.",
+                     "Certifies this key as fully trusted introducer for '%1'.", trustSignatureDomain(sig));
+    default:
+        return {};
+    }
+#else
+    return {};
+#endif
+}

src/utils/formatting.h

@@ -3,6 +3,8 @@
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2007 Klarälvdalens Datakonsult AB
+    SPDX-FileCopyrightText: 2021 g10 Code GmbH
+    SPDX-FileContributor: Ingo Klöcker <dev@ingo-kloecker.de>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
@@ -153,6 +155,11 @@ KLEO_EXPORT QString complianceStringShort(const Kleo::KeyGroup &group);
 
 /* The origin of the key mapped to a localized string */
 KLEO_EXPORT QString origin(int o);
+
+/* Human-readable trust signature scope (for trust signature regexp created by GnuPG) */
+KLEO_EXPORT QString trustSignatureDomain(const GpgME::UserID::Signature &sig);
+/* Summary of trust signature properties */
+KLEO_EXPORT QString trustSignature(const GpgME::UserID::Signature &sig);
 }
 }