qt: Support changing expiry of subkeys

* lang/qt/src/changeexpiryjob.h (ChangeExpiryJob::start): New overload
that accepts subkeys (with empty implementation).
* lang/qt/src/qgpgmechangeexpiryjob.h,
lang/qt/src/qgpgmechangeexpiryjob.cpp (QGpgMEChangeExpiryJob::start):
New overload that accepts subkeys.
--

This adds the possibility to change the expiry of subkeys.

GnuPG-bug-id: 4717

NEWS

@@ -6,6 +6,9 @@ Noteworthy changes in version 1.14.1 (unreleased)
 
  * cpp: Support for set expire operations in the C++ bindings. [#5003]
 
+ * qt: Extended ChangeExpiryJob to support changing the expiry of
+   subkeys. [#4717]
+
  * Interface changes relative to the 1.14.0 release:
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  gpgme_op_setexpire_start                   NEW.

lang/qt/src/changeexpiryjob.h

@@ -37,10 +37,17 @@
 
 #include "job.h"
 
+#ifdef BUILDING_QGPGME
+# include "key.h"
+#else
+# include <gpgme++/key.h>
+#endif
+
+#include <vector>
+
 namespace GpgME
 {
 class Error;
-class Key;
 }
 
 class QDateTime;
@@ -76,6 +83,16 @@ public:
     */
     virtual GpgME::Error start(const GpgME::Key &key, const QDateTime &expiry) = 0;
 
+    /**
+       Starts the change-expiry operation. \a key is the key to change,
+       \a subkeys is a list of subkeys of the key, and \a expiry is the
+       new expiry time. If \a subkeys is empty, then the expiry of \a key
+       is changed. Otherwise, the expiry of \a subkeys is changed. If
+       \a expiry is not valid, then \a key or \a subkeys are set to never expire.
+    */
+    virtual GpgME::Error start(const GpgME::Key &key, const QDateTime &expiry,
+                               const std::vector<GpgME::Subkey> &subkeys);
+
 Q_SIGNALS:
     void result(const GpgME::Error &result, const QString &auditLogAsHtml = QString(), const GpgME::Error &auditLogError = GpgME::Error());
 };

lang/qt/src/qgpgmechangeexpiryjob.cpp

@@ -54,20 +54,33 @@ QGpgMEChangeExpiryJob::QGpgMEChangeExpiryJob(Context *context)
 
 QGpgMEChangeExpiryJob::~QGpgMEChangeExpiryJob() {}
 
-static QGpgMEChangeExpiryJob::result_type change_expiry(Context *ctx, const Key &key, const QDateTime &expiry)
+static QGpgMEChangeExpiryJob::result_type change_expiry(Context *ctx, const Key &key, const QDateTime &expiry,
+    const std::vector<Subkey> &subkeys)
 {
     // convert expiry to "seconds from now"; use 1 second from now if expiry is before the current datetime
     const unsigned long expires = expiry.isValid()
        ? std::max<qint64>(QDateTime::currentDateTime().secsTo(expiry), 1)
        : 0;
 
-    auto err = ctx->setExpire(key, expires);
+    auto err = ctx->setExpire(key, expires, subkeys);
     return std::make_tuple(err, QString(), Error());
 }
 
 Error QGpgMEChangeExpiryJob::start(const Key &key, const QDateTime &expiry)
 {
-    run(std::bind(&change_expiry, std::placeholders::_1, key, expiry));
+    return start(key, expiry, std::vector<Subkey>());
+}
+
+Error QGpgMEChangeExpiryJob::start(const Key &key, const QDateTime &expiry, const std::vector<Subkey> &subkeys)
+{
+    run(std::bind(&change_expiry, std::placeholders::_1, key, expiry, subkeys));
     return Error();
 }
+
+/* For ABI compat not pure virtual. */
+Error ChangeExpiryJob::start(const Key &, const QDateTime &, const std::vector<Subkey> &)
+{
+    return Error();
+}
+
 #include "qgpgmechangeexpiryjob.moc"

lang/qt/src/qgpgmechangeexpiryjob.h

@@ -60,6 +60,11 @@ public:
 
     /* from ChangeExpiryJob */
     GpgME::Error start(const GpgME::Key &key, const QDateTime &expiry) Q_DECL_OVERRIDE;
+
+    /* from ChangeExpiryJob */
+    GpgME::Error start(const GpgME::Key &key, const QDateTime &expiry,
+                       const std::vector<GpgME::Subkey> &subkeys) Q_DECL_OVERRIDE;
+
 };
 
 }