pidgin/pidgin

certificate: Use SHA256 fingerprints instead of SHA1
release-2.x.y
2017-03-06, dx
b3d0ba7c75f6
certificate: Use SHA256 fingerprints instead of SHA1

This meant adding a get_fingerprint_sha256 function to the certificate scheme
structs, which meant adding a struct_size member because we ran out of reserved
members there.

The API-facing purple_certificate_get_fingerprint_sha256() has a fallback
parameter to use sha1 if the SSL plugin doesn't implement this function
(probably an outdated installation, or a third party SSL plugin). When using
the function for display purposes, the fallback is disabled and it returns
NULL, but when using it to compare certificates it's better to have at least
the SHA1.

In functions like purple_certificate_display_x509(), some slight changes to
translatable strings would have been required. Since we're in a string freeze
right now, I avoided those by concatenating a language-neutral "SHA256: %s" at
the end of those messages. The SHA1 line used the word "fingerprint" but we
can't reuse that translation. This should be cleaned up after the release.
/**
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include "gntinternal.h"
#include "gntlabel.h"
#include "gntutils.h"
#include <string.h>
enum
{
PROP_0,
PROP_TEXT,
PROP_TEXT_FLAG
};
enum
{
SIGS = 1,
};
static GntWidgetClass *parent_class = NULL;
static void
gnt_label_destroy(GntWidget *widget)
{
GntLabel *label = GNT_LABEL(widget);
g_free(label->text);
}
static void
gnt_label_draw(GntWidget *widget)
{
GntLabel *label = GNT_LABEL(widget);
chtype flag = gnt_text_format_flag_to_chtype(label->flags);
wbkgdset(widget->window, '\0' | flag);
mvwaddstr(widget->window, 0, 0, C_(label->text));
GNTDEBUG;
}
static void
gnt_label_size_request(GntWidget *widget)
{
GntLabel *label = GNT_LABEL(widget);
gnt_util_get_text_bound(label->text,
&widget->priv.width, &widget->priv.height);
}
static void
gnt_label_set_property(GObject *obj, guint prop_id, const GValue *value,
GParamSpec *spec)
{
GntLabel *label = GNT_LABEL(obj);
switch (prop_id) {
case PROP_TEXT:
g_free(label->text);
label->text = gnt_util_onscreen_fit_string(g_value_get_string(value), -1);
break;
case PROP_TEXT_FLAG:
label->flags = g_value_get_int(value);
break;
default:
g_return_if_reached();
break;
}
}
static void
gnt_label_get_property(GObject *obj, guint prop_id, GValue *value,
GParamSpec *spec)
{
GntLabel *label = GNT_LABEL(obj);
switch (prop_id) {
case PROP_TEXT:
g_value_set_string(value, label->text);
break;
case PROP_TEXT_FLAG:
g_value_set_int(value, label->flags);
break;
default:
break;
}
}
static void
gnt_label_class_init(GntLabelClass *klass)
{
GObjectClass *gclass = G_OBJECT_CLASS(klass);
parent_class = GNT_WIDGET_CLASS(klass);
parent_class->destroy = gnt_label_destroy;
parent_class->draw = gnt_label_draw;
parent_class->map = NULL;
parent_class->size_request = gnt_label_size_request;
gclass->set_property = gnt_label_set_property;
gclass->get_property = gnt_label_get_property;
g_object_class_install_property(gclass,
PROP_TEXT,
g_param_spec_string("text", "Text",
"The text for the label.",
NULL,
G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
)
);
g_object_class_install_property(gclass,
PROP_TEXT_FLAG,
g_param_spec_int("text-flag", "Text flag",
"Text attribute to use when displaying the text in the label.",
GNT_TEXT_FLAG_NORMAL,
GNT_TEXT_FLAG_NORMAL|GNT_TEXT_FLAG_BOLD|GNT_TEXT_FLAG_UNDERLINE|
GNT_TEXT_FLAG_BLINK|GNT_TEXT_FLAG_DIM|GNT_TEXT_FLAG_HIGHLIGHT,
GNT_TEXT_FLAG_NORMAL,
G_PARAM_READWRITE|G_PARAM_STATIC_NAME|G_PARAM_STATIC_NICK|G_PARAM_STATIC_BLURB
)
);
GNTDEBUG;
}
static void
gnt_label_init(GTypeInstance *instance, gpointer class)
{
GntWidget *widget = GNT_WIDGET(instance);
gnt_widget_set_take_focus(widget, FALSE);
GNT_WIDGET_SET_FLAGS(widget, GNT_WIDGET_NO_BORDER | GNT_WIDGET_NO_SHADOW);
GNT_WIDGET_SET_FLAGS(widget, GNT_WIDGET_GROW_X);
widget->priv.minw = 3;
widget->priv.minh = 1;
GNTDEBUG;
}
/******************************************************************************
* GntLabel API
*****************************************************************************/
GType
gnt_label_get_gtype(void)
{
static GType type = 0;
if(type == 0)
{
static const GTypeInfo info = {
sizeof(GntLabelClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc)gnt_label_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(GntLabel),
0, /* n_preallocs */
gnt_label_init, /* instance_init */
NULL /* value_table */
};
type = g_type_register_static(GNT_TYPE_WIDGET,
"GntLabel",
&info, 0);
}
return type;
}
GntWidget *gnt_label_new(const char *text)
{
return gnt_label_new_with_format(text, 0);
}
GntWidget *gnt_label_new_with_format(const char *text, GntTextFormatFlags flags)
{
GntWidget *widget = g_object_new(GNT_TYPE_LABEL, "text-flag", flags, "text", text, NULL);
return widget;
}
void gnt_label_set_text(GntLabel *label, const char *text)
{
g_object_set(label, "text", text, NULL);
if (GNT_WIDGET(label)->window)
{
werase(GNT_WIDGET(label)->window);
gnt_widget_draw(GNT_WIDGET(label));
}
}