[libsoup/nacho/server-tls-cert: 3/5] server-message: proxy the peer-certificate and peer-certificate-errors




commit 326ce8e41d9f361c01ad1dd01cc4330461cb0eb5
Author: Ignacio Casal Quinteiro <qignacio amazon com>
Date:   Fri Nov 19 10:59:59 2021 +0100

    server-message: proxy the peer-certificate and peer-certificate-errors

 docs/reference/libsoup-3.0-sections.txt |   2 +
 libsoup/server/soup-server-message.c    | 135 ++++++++++++++++++++++++++++++++
 libsoup/server/soup-server-message.h    |   6 ++
 libsoup/server/soup-socket.c            |  57 ++++++++++++++
 libsoup/server/soup-socket.h            |   3 +
 5 files changed, 203 insertions(+)
---
diff --git a/docs/reference/libsoup-3.0-sections.txt b/docs/reference/libsoup-3.0-sections.txt
index e6b20324..21b0b00b 100644
--- a/docs/reference/libsoup-3.0-sections.txt
+++ b/docs/reference/libsoup-3.0-sections.txt
@@ -295,6 +295,8 @@ soup_server_message_get_remote_address
 soup_server_message_get_remote_host
 soup_server_message_is_options_ping
 soup_server_message_steal_connection
+soup_server_message_get_tls_peer_certificate
+soup_server_message_get_tls_peer_certificate_errors
 <SUBSECTION Standard>
 SOUP_SERVER_MESSAGE
 SOUP_IS_SERVER_MESSAGE
diff --git a/libsoup/server/soup-server-message.c b/libsoup/server/soup-server-message.c
index 641942ec..dc164841 100644
--- a/libsoup/server/soup-server-message.c
+++ b/libsoup/server/soup-server-message.c
@@ -72,6 +72,9 @@ struct _SoupServerMessage {
         SoupServerMessageIOData *io_data;
 
         gboolean                 options_ping;
+
+        GTlsCertificate      *tls_peer_certificate;
+        GTlsCertificateFlags  tls_peer_certificate_errors;
 };
 
 struct _SoupServerMessageClass {
@@ -101,6 +104,17 @@ enum {
 
 static guint signals[LAST_SIGNAL] = { 0 };
 
+enum {
+       PROP_0,
+
+       PROP_TLS_PEER_CERTIFICATE,
+       PROP_TLS_PEER_CERTIFICATE_ERRORS,
+
+       LAST_PROPERTY
+};
+
+static GParamSpec *properties[LAST_PROPERTY] = { NULL, };
+
 static void
 soup_server_message_init (SoupServerMessage *msg)
 {
@@ -141,12 +155,32 @@ soup_server_message_finalize (GObject *object)
         G_OBJECT_CLASS (soup_server_message_parent_class)->finalize (object);
 }
 
+static void
+soup_server_message_get_property (GObject *object, guint prop_id,
+                                  GValue *value, GParamSpec *pspec)
+{
+       SoupServerMessage *msg = SOUP_SERVER_MESSAGE (object);
+
+       switch (prop_id) {
+       case PROP_TLS_PEER_CERTIFICATE:
+               g_value_set_object (value, msg->tls_peer_certificate);
+               break;
+       case PROP_TLS_PEER_CERTIFICATE_ERRORS:
+               g_value_set_flags (value, msg->tls_peer_certificate_errors);
+               break;
+       default:
+               G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+               break;
+       }
+}
+
 static void
 soup_server_message_class_init (SoupServerMessageClass *klass)
 {
         GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
         object_class->finalize = soup_server_message_finalize;
+        object_class->get_property = soup_server_message_get_property;
 
         /**
          * SoupServerMessage::wrote-informational:
@@ -341,6 +375,38 @@ soup_server_message_class_init (SoupServerMessageClass *klass)
                              G_TYPE_BOOLEAN, 2,
                              G_TYPE_TLS_CERTIFICATE,
                              G_TYPE_TLS_CERTIFICATE_FLAGS);
+
+       /**
+        * SoupServerMessage:tls-peer-certificate:
+        *
+        * The peer's #GTlsCertificate associated with the message
+        *
+        * Since: 3.2
+        */
+        properties[PROP_TLS_PEER_CERTIFICATE] =
+               g_param_spec_object ("tls-peer-certificate",
+                                    "TLS Peer Certificate",
+                                    "The TLS peer certificate associated with the message",
+                                    G_TYPE_TLS_CERTIFICATE,
+                                    G_PARAM_READABLE |
+                                    G_PARAM_STATIC_STRINGS);
+
+       /**
+        * SoupServerMessage:tls-peer-certificate-errors:
+        *
+        * The verification errors on #SoupServerMessage:tls-peer-certificate
+        *
+        * Since: 3.2
+        */
+        properties[PROP_TLS_PEER_CERTIFICATE_ERRORS] =
+               g_param_spec_flags ("tls-peer-certificate-errors",
+                                   "TLS Peer Certificate Errors",
+                                   "The verification errors on the message's TLS peer certificate",
+                                   G_TYPE_TLS_CERTIFICATE_FLAGS, 0,
+                                   G_PARAM_READABLE |
+                                   G_PARAM_STATIC_STRINGS);
+
+        g_object_class_install_properties (object_class, LAST_PROPERTY, properties);
 }
 
 static void
@@ -361,6 +427,31 @@ socket_accept_certificate (SoupServerMessage    *msg,
        return accept;
 }
 
+static void
+soup_server_message_set_tls_peer_certificate (SoupServerMessage   *msg,
+                                              GTlsCertificate     *tls_certificate,
+                                              GTlsCertificateFlags tls_errors)
+{
+        if (msg->tls_peer_certificate == tls_certificate && msg->tls_peer_certificate_errors == tls_errors)
+                return;
+
+        g_clear_object (&msg->tls_peer_certificate);
+        msg->tls_peer_certificate = tls_certificate ? g_object_ref (tls_certificate) : NULL;
+        msg->tls_peer_certificate_errors = tls_errors;
+        g_object_notify_by_pspec (G_OBJECT (msg), properties[PROP_TLS_PEER_CERTIFICATE]);
+        g_object_notify_by_pspec (G_OBJECT (msg), properties[PROP_TLS_PEER_CERTIFICATE_ERRORS]);
+}
+
+static void
+re_emit_tls_certificate_changed (SoupServerMessage *msg,
+                                 GParamSpec        *pspec,
+                                 SoupSocket        *sock)
+{
+        soup_server_message_set_tls_peer_certificate (msg,
+                                                      soup_socket_get_tls_certificate (sock),
+                                                      soup_socket_get_tls_certificate_errors (sock));
+}
+
 SoupServerMessage *
 soup_server_message_new (SoupSocket *sock)
 {
@@ -378,6 +469,9 @@ soup_server_message_new (SoupSocket *sock)
         g_signal_connect_object (sock, "accept-certificate",
                                  G_CALLBACK (socket_accept_certificate),
                                  msg, G_CONNECT_SWAPPED);
+        g_signal_connect_object (sock, "notify::tls-certificate",
+                                 G_CALLBACK (re_emit_tls_certificate_changed),
+                                 msg, G_CONNECT_SWAPPED);
 
         return msg;
 }
@@ -972,3 +1066,44 @@ soup_server_message_steal_connection (SoupServerMessage *msg)
 
         return stream;
 }
+
+/**
+ * soup_server_message_get_tls_peer_certificate:
+ * @msg: a #SoupMessage
+ *
+ * Gets the peer's #GTlsCertificate associated with @msg's connection.
+ * Note that this is not set yet during the emission of
+ * SoupServerMessage::accept-certificate signal.
+ *
+ * Returns: (transfer none) (nullable): @msg's TLS peer certificate,
+ *    or %NULL if @msg's connection is not SSL.
+ *
+ * Since: 3.2
+ */
+GTlsCertificate *
+soup_server_message_get_tls_peer_certificate (SoupServerMessage *msg)
+{
+        g_return_val_if_fail (SOUP_IS_SERVER_MESSAGE (msg), NULL);
+
+        return msg->tls_peer_certificate;
+}
+
+/**
+ * soup_server_message_get_tls_peer_certificate_errors:
+ * @msg: a #SoupMessage
+ *
+ * Gets the errors associated with validating @msg's TLS peer certificate.
+ * Note that this is not set yet during the emission of
+ * SoupServerMessage::accept-certificate signal.
+ *
+ * Returns: a #GTlsCertificateFlags with @msg's TLS peer certificate errors.
+ *
+ * Since: 3.2
+ */
+GTlsCertificateFlags
+soup_server_message_get_tls_peer_certificate_errors (SoupServerMessage *msg)
+{
+        g_return_val_if_fail (SOUP_IS_SERVER_MESSAGE (msg), 0);
+
+        return msg->tls_peer_certificate_errors;
+}
diff --git a/libsoup/server/soup-server-message.h b/libsoup/server/soup-server-message.h
index e47fc45c..c2c7e4f5 100644
--- a/libsoup/server/soup-server-message.h
+++ b/libsoup/server/soup-server-message.h
@@ -80,6 +80,12 @@ GIOStream          *soup_server_message_steal_connection      (SoupServerMessage
 SOUP_AVAILABLE_IN_ALL
 gboolean            soup_server_message_is_options_ping       (SoupServerMessage *msg);
 
+SOUP_AVAILABLE_IN_ALL
+GTlsCertificate     *soup_server_message_get_tls_peer_certificate          (SoupServerMessage *msg);
+
+SOUP_AVAILABLE_IN_ALL
+GTlsCertificateFlags soup_server_message_get_tls_peer_certificate_errors   (SoupServerMessage *msg);
+
 G_END_DECLS
 
 #endif /* __SOUP_SERVER_MESSAGE_H__ */
diff --git a/libsoup/server/soup-socket.c b/libsoup/server/soup-socket.c
index 2a7c2c50..8a2043fd 100644
--- a/libsoup/server/soup-socket.c
+++ b/libsoup/server/soup-socket.c
@@ -49,6 +49,8 @@ enum {
        PROP_TLS_CERTIFICATE,
         PROP_TLS_DATABASE,
         PROP_TLS_AUTH_MODE,
+        PROP_TLS_PEER_CERTIFICATE,
+        PROP_TLS_PEER_CERTIFICATE_ERRORS,
 
        LAST_PROPERTY
 };
@@ -410,6 +412,22 @@ soup_socket_class_init (SoupSocketClass *socket_class)
                                      G_PARAM_READWRITE |
                                      G_PARAM_STATIC_STRINGS);
 
+        properties[PROP_TLS_PEER_CERTIFICATE] =
+                g_param_spec_object ("tls-peer-certificate",
+                                     "TLS Peer Certificate",
+                                     "The TLS peer certificate associated with the message",
+                                     G_TYPE_TLS_CERTIFICATE,
+                                     G_PARAM_READABLE |
+                                     G_PARAM_STATIC_STRINGS);
+
+        properties[PROP_TLS_PEER_CERTIFICATE_ERRORS] =
+                g_param_spec_flags ("tls-peer-certificate-errors",
+                                    "TLS Peer Certificate Errors",
+                                    "The verification errors on the message's TLS peer certificate",
+                                    G_TYPE_TLS_CERTIFICATE_FLAGS, 0,
+                                    G_PARAM_READABLE |
+                                    G_PARAM_STATIC_STRINGS);
+
         g_object_class_install_properties (object_class, LAST_PROPERTY, properties);
 }
 
@@ -495,6 +513,12 @@ tls_connection_accept_certificate (SoupSocket          *sock,
         return accept;
 }
 
+static void
+tls_connection_peer_certificate_changed (SoupSocket *sock)
+{
+       g_object_notify_by_pspec (G_OBJECT (sock), properties[PROP_TLS_CERTIFICATE]);
+}
+
 static gboolean
 soup_socket_setup_ssl (SoupSocket *sock)
 {
@@ -524,6 +548,9 @@ soup_socket_setup_ssl (SoupSocket *sock)
         g_signal_connect_object (priv->conn, "accept-certificate",
                                  G_CALLBACK (tls_connection_accept_certificate),
                                  sock, G_CONNECT_SWAPPED);
+        g_signal_connect_object (priv->conn, "notify::peer-certificate",
+                                 G_CALLBACK (tls_connection_peer_certificate_changed),
+                                 sock, G_CONNECT_SWAPPED);
 
        g_clear_object (&priv->istream);
        g_clear_object (&priv->ostream);
@@ -804,3 +831,33 @@ soup_socket_get_connection (SoupSocket *sock)
 
        return priv->conn;
 }
+
+GTlsCertificate *
+soup_socket_get_tls_certificate (SoupSocket *sock)
+{
+       SoupSocketPrivate *priv;
+
+       g_return_val_if_fail (SOUP_IS_SOCKET (sock), NULL);
+
+       priv = soup_socket_get_instance_private (sock);
+
+       if (!G_IS_TLS_CONNECTION (priv->conn))
+               return NULL;
+
+       return g_tls_connection_get_peer_certificate (G_TLS_CONNECTION (priv->conn));
+}
+
+GTlsCertificateFlags
+soup_socket_get_tls_certificate_errors (SoupSocket *sock)
+{
+       SoupSocketPrivate *priv;
+
+       g_return_val_if_fail (SOUP_IS_SOCKET (sock), 0);
+
+       priv = soup_socket_get_instance_private (sock);
+
+       if (!G_IS_TLS_CONNECTION (priv->conn))
+               return 0;
+
+       return g_tls_connection_get_peer_certificate_errors (G_TLS_CONNECTION (priv->conn));
+}
diff --git a/libsoup/server/soup-socket.h b/libsoup/server/soup-socket.h
index cb95f4d1..051b3dcb 100644
--- a/libsoup/server/soup-socket.h
+++ b/libsoup/server/soup-socket.h
@@ -30,4 +30,7 @@ GIOStream     *soup_socket_get_iostream       (SoupSocket         *sock);
 GInetSocketAddress   *soup_socket_get_local_address  (SoupSocket         *sock);
 GInetSocketAddress   *soup_socket_get_remote_address (SoupSocket         *sock);
 
+GTlsCertificate      *soup_socket_get_tls_certificate        (SoupSocket *sock);
+GTlsCertificateFlags  soup_socket_get_tls_certificate_errors (SoupSocket *sock);
+
 G_END_DECLS


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