[evolution] Use GcrCertificateWidget to view certificates.

[Matthew Barnes <mbarnes src gnome org>]

commit a2117429406dd3fb2b92c23ab6d31339696d5f6d
Author: Matthew Barnes <mbarnes redhat com>
Date:   Tue Sep 24 13:53:49 2013 -0400

    Use GcrCertificateWidget to view certificates.
    
    e_cert_manager_new_certificate_viewer() now builds a simple GtkDialog
    with a GcrCertificateWidget showing details about the given ECert.

 smime/gui/Makefile.am           |    2 -
 smime/gui/certificate-manager.c |   87 +++++-
 smime/gui/certificate-viewer.c  |  688 ---------------------------------------
 smime/gui/certificate-viewer.h  |   32 --
 4 files changed, 75 insertions(+), 734 deletions(-)
---
diff --git a/smime/gui/Makefile.am b/smime/gui/Makefile.am
index 09c9fa8..15297bd 100644
--- a/smime/gui/Makefile.am
+++ b/smime/gui/Makefile.am
@@ -27,8 +27,6 @@ libevolution_smime_la_SOURCES =       \
        cert-trust-dialog.h             \
        certificate-manager.c           \
        certificate-manager.h           \
-       certificate-viewer.c            \
-       certificate-viewer.h            \
        e-cert-selector.c               \
        e-cert-selector.h               \
        component.c                     \
diff --git a/smime/gui/certificate-manager.c b/smime/gui/certificate-manager.c
index 5fdca5f..e492200 100644
--- a/smime/gui/certificate-manager.c
+++ b/smime/gui/certificate-manager.c
@@ -32,7 +32,6 @@
 #include "ca-trust-dialog.h"
 #include "cert-trust-dialog.h"
 #include "certificate-manager.h"
-#include "certificate-viewer.h"
 
 #include "e-cert.h"
 #include "e-cert-trust.h"
@@ -45,6 +44,15 @@
 #include <pkcs11.h>
 #include <pk11func.h>
 
+/* XXX Hack to disable p11-kit's pkcs11.h header, since
+ *     NSS headers supply the same PKCS #11 definitions. */
+#define PKCS11_H 1
+
+/* XXX Yeah, yeah... */
+#define GCR_API_SUBJECT_TO_CHANGE
+
+#include <gcr/gcr.h>
+
 #include "shell/e-shell.h"
 
 #define E_CERT_MANAGER_CONFIG_GET_PRIVATE(obj) \
@@ -1112,28 +1120,83 @@ e_cert_manager_config_new (EPreferencesWindow *window)
        return GTK_WIDGET (ecmc);
 }
 
+/* Helper for e_cert_manager_new_certificate_viewer() */
+static void
+cert_manager_parser_parsed_cb (GcrParser *parser,
+                               GcrParsed **out_parsed)
+{
+       GcrParsed *parsed;
+
+       parsed = gcr_parser_get_parsed (parser);
+       g_return_if_fail (parsed != NULL);
+
+       *out_parsed = gcr_parsed_ref (parsed);
+}
+
 GtkWidget *
 e_cert_manager_new_certificate_viewer (GtkWindow *parent,
                                        ECert *cert)
 {
+       GcrParser *parser;
+       GcrParsed *parsed = NULL;
+       GcrCertificate *certificate;
+       GckAttributes *attributes;
+       GcrCertificateWidget *certificate_widget;
+       GtkWidget *content_area;
        GtkWidget *dialog;
-       GList *chain, *citer;
-       GSList *issuers = NULL;
+       GtkWidget *widget;
+       gchar *subject_name;
+       const guchar *der_data = NULL;
+       gsize der_length;
+       GError *local_error = NULL;
 
        g_return_val_if_fail (cert != NULL, NULL);
 
-       chain = e_cert_get_issuers_chain (cert);
-       for (citer = chain; citer; citer = g_list_next (citer)) {
-               issuers = g_slist_append (issuers, e_cert_get_internal_cert (citer->data));
+       certificate = GCR_CERTIFICATE (cert);
+       der_data = gcr_certificate_get_der_data (certificate, &der_length);
+
+       parser = gcr_parser_new ();
+       g_signal_connect (
+               parser, "parsed",
+               G_CALLBACK (cert_manager_parser_parsed_cb), &parsed);
+       gcr_parser_parse_data (
+               parser, der_data, der_length, &local_error);
+       g_object_unref (parser);
+
+       /* Sanity check. */
+       g_return_val_if_fail (
+               ((parsed != NULL) && (local_error == NULL)) ||
+               ((parsed == NULL) && (local_error != NULL)), NULL);
+
+       if (local_error != NULL) {
+               g_warning ("%s: %s", G_STRFUNC, local_error->message);
+               g_clear_error (&local_error);
+               return NULL;
        }
 
-       dialog = certificate_viewer_new (
-               (GtkWindow *) parent,
-               e_cert_get_internal_cert (cert),
-               issuers);
+       attributes = gcr_parsed_get_attributes (parsed);
+       subject_name = gcr_certificate_get_subject_name (certificate);
+
+       dialog = gtk_dialog_new_with_buttons (
+               subject_name, parent,
+               GTK_DIALOG_DESTROY_WITH_PARENT,
+               GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
+               NULL);
+
+       gtk_container_set_border_width (GTK_CONTAINER (dialog), 5);
+
+       content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+       certificate_widget = gcr_certificate_widget_new (certificate);
+       gcr_certificate_widget_set_attributes (certificate_widget, attributes);
+
+       widget = GTK_WIDGET (certificate_widget);
+       gtk_container_set_border_width (GTK_CONTAINER (widget), 5);
+       gtk_box_pack_start (GTK_BOX (content_area), widget, TRUE, TRUE, 0);
+       gtk_widget_show (widget);
 
-       g_list_free_full (chain, g_object_unref);
-       g_slist_free (issuers);
+       g_free (subject_name);
+       gcr_parsed_unref (parsed);
 
        return dialog;
 }