cpp: Add API for swdb queries

* lang/cpp/src/swdbresult.cpp,
 lang/cpp/src/swdbresult.h (SwdbResult): New.
* lang/cpp/src/Makefile.am: Update accordingly.

1 files changed, 231 insertions, 0 deletions

diff --git a/lang/cpp/src/swdbresult.cpp b/lang/cpp/src/swdbresult.cpp
new file mode 100644
index 00000000..3afa8b5b
--- /dev/null
+++ b/lang/cpp/src/swdbresult.cpp
@@ -0,0 +1,231 @@
+/* swdbresult.cpp - wraps gpgme swdb result / query
+  Copyright (C) 2016 Intevation GmbH
+
+  This file is part of GPGME++.
+
+  GPGME++ is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Library General Public
+  License as published by the Free Software Foundation; either
+  version 2 of the License, or (at your option) any later version.
+
+  GPGME++ is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU Library General Public License for more details.
+
+  You should have received a copy of the GNU Library General Public License
+  along with GPGME++; see the file COPYING.LIB.  If not, write to the
+  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+  Boston, MA 02110-1301, USA.
+*/
+
+#ifdef HAVE_CONFIG_H
+ #include "config.h"
+#endif
+
+#include "swdbresult.h"
+
+#include <istream>
+
+#include "error.h"
+
+#include "gpgme.h"
+
+class GpgME::SwdbResult::Private
+{
+public:
+    Private() {}
+    Private(gpgme_query_swdb_result_t result)
+        : mResult(result ? new _gpgme_op_query_swdb_result (*result) : nullptr)
+    {
+        if (!result) {
+            mResult->name = nullptr;
+            return;
+        }
+        if (result->name) {
+            mResult->name = strdup(result->name);
+        }
+        if (result->version) {
+            mVersion = result->version;
+        }
+        if (result->iversion) {
+            mIVersion = result->iversion;
+        }
+    }
+
+    Private(const Private &other)
+        : mResult(other.mResult)
+    {
+        if (mResult && mResult->name) {
+            mResult->name = strdup(mResult->name);
+        }
+        mVersion = other.mVersion;
+        mIVersion = other.mIVersion;
+    }
+
+    ~Private()
+    {
+        if (mResult) {
+            std::free(mResult->name);
+            delete mResult;
+        }
+    }
+
+    GpgME::EngineInfo::Version mVersion;
+    GpgME::EngineInfo::Version mIVersion;
+    gpgme_query_swdb_result_t mResult;
+};
+
+GpgME::SwdbResult::SwdbResult(gpgme_query_swdb_result_t result)
+    : d(new Private(result))
+{
+}
+
+GpgME::SwdbResult::SwdbResult() : d()
+{
+}
+
+bool GpgME::SwdbResult::isNull() const
+{
+    return !d || !d->mResult;
+}
+
+std::string GpgME::SwdbResult::name() const
+{
+    if (isNull() || !d->mResult->name) {
+        return std::string();
+    }
+    return d->mResult->name;
+}
+
+GpgME::EngineInfo::Version GpgME::SwdbResult::version() const
+{
+    if (isNull()) {
+        return GpgME::EngineInfo::Version();
+    }
+    return d->mVersion;
+}
+
+GpgME::EngineInfo::Version GpgME::SwdbResult::installedVersion() const
+{
+    if (isNull()) {
+        return GpgME::EngineInfo::Version();
+    }
+    return d->mIVersion;
+}
+
+unsigned long GpgME::SwdbResult::created() const
+{
+    return isNull() ? 0 : d->mResult->created;
+}
+
+unsigned long GpgME::SwdbResult::retrieved() const
+{
+    return isNull() ? 0 : d->mResult->retrieved;
+}
+
+unsigned long GpgME::SwdbResult::releaseDate() const
+{
+    return isNull() ? 0 : d->mResult->reldate;
+}
+
+bool GpgME::SwdbResult::warning() const
+{
+    return isNull() ? 0 : d->mResult->warning;
+}
+
+bool GpgME::SwdbResult::update() const
+{
+    return isNull() ? 0 : d->mResult->update;
+}
+
+bool GpgME::SwdbResult::noinfo() const
+{
+    return isNull() ? 0 : d->mResult->noinfo;
+}
+
+bool GpgME::SwdbResult::unknown() const
+{
+    return isNull() ? 0 : d->mResult->unknown;
+}
+
+bool GpgME::SwdbResult::error() const
+{
+    return isNull() ? 0 : d->mResult->error;
+}
+
+bool GpgME::SwdbResult::tooOld() const
+{
+    return isNull() ? 0 : d->mResult->tooold;
+}
+
+bool GpgME::SwdbResult::urgent() const
+{
+    return isNull() ? 0 : d->mResult->urgent;
+}
+
+std::vector<GpgME::SwdbResult> GpgME::SwdbResult::query(const char *name,
+                                                        const char *iversion,
+                                                        Error *err)
+{
+  std::vector <GpgME::SwdbResult> ret;
+  gpgme_ctx_t ctx;
+  gpgme_error_t gpgerr = gpgme_new(&ctx);
+
+  if (gpgerr) {
+      if (err) {
+        *err = Error (gpgerr);
+      }
+      return ret;
+  }
+
+  gpgerr = gpgme_set_protocol(ctx, GPGME_PROTOCOL_GPGCONF);
+
+  if (gpgerr) {
+      if (err) {
+        *err = Error(gpgerr);
+      }
+      gpgme_release(ctx);
+      return ret;
+  }
+
+  gpgerr = gpgme_op_query_swdb(ctx, name, iversion, 0);
+
+  if (gpgerr) {
+      if (err) {
+        *err = Error(gpgerr);
+      }
+      gpgme_release(ctx);
+      return ret;
+  }
+  gpgme_query_swdb_result_t result = gpgme_op_query_swdb_result(ctx);
+  while (result) {
+      ret.push_back(SwdbResult(result));
+      result = result->next;
+  }
+
+  gpgme_release(ctx);
+  return ret;
+}
+
+std::ostream &GpgME::operator<<(std::ostream &os, const GpgME::SwdbResult &result)
+{
+    os << "GpgME::SwdbResult(";
+    if (!result.isNull()) {
+        os << "\n name: "     << result.name()
+           << "\n version: "  << result.version()
+           << "\n installed: "<< result.installedVersion()
+           << "\n created: "  << result.created()
+           << "\n retrieved: "<< result.retrieved()
+           << "\n warning: "  << result.warning()
+           << "\n update: "   << result.update()
+           << "\n urgent: "   << result.urgent()
+           << "\n noinfo: "   << result.noinfo()
+           << "\n unknown: "  << result.unknown()
+           << "\n tooOld: "   << result.tooOld()
+           << "\n error: "    << result.error()
+           << "\n reldate: "  << result.releaseDate()
+           << '\n';
+    }
+    return os << ")\n";
+}