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(probably an outdated installation, or a third party SSL plugin).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 "gntbox.h"
#include "gntcombobox.h"
#include "gnttree.h"
#include "gntmarshal.h"
#include "gntstyle.h"
#include "gntutils.h"
#include <string.h>
enum
{
SIG_SELECTION_CHANGED,
SIGS,
};
static GntWidgetClass *parent_class = NULL;
static guint signals[SIGS] = { 0 };
static void (*widget_lost_focus)(GntWidget *widget);
static void
set_selection(GntComboBox *box, gpointer key)
{
if (box->selected != key)
{
/* XXX: make sure the key actually does exist */
gpointer old = box->selected;
box->selected = key;
if (GNT_WIDGET(box)->window)
gnt_widget_draw(GNT_WIDGET(box));
if (box->dropdown)
gnt_tree_set_selected(GNT_TREE(box->dropdown), key);
g_signal_emit(box, signals[SIG_SELECTION_CHANGED], 0, old, key);
}
}
static void
hide_popup(GntComboBox *box, gboolean set)
{
gnt_widget_set_size(box->dropdown,
box->dropdown->priv.width - 1, box->dropdown->priv.height);
if (set)
set_selection(box, gnt_tree_get_selection_data(GNT_TREE(box->dropdown)));
else
gnt_tree_set_selected(GNT_TREE(box->dropdown), box->selected);
gnt_widget_hide(box->dropdown->parent);
}
static void
gnt_combo_box_draw(GntWidget *widget)
{
GntComboBox *box = GNT_COMBO_BOX(widget);
char *text = NULL, *s;
GntColorType type;
int len;
if (box->dropdown && box->selected)
text = gnt_tree_get_selection_text(GNT_TREE(box->dropdown));
if (text == NULL)
text = g_strdup("");
if (gnt_widget_has_focus(widget))
type = GNT_COLOR_HIGHLIGHT;
else
type = GNT_COLOR_NORMAL;
wbkgdset(widget->window, '\0' | gnt_color_pair(type));
s = (char*)gnt_util_onscreen_width_to_pointer(text, widget->priv.width - 4, &len);
*s = '\0';
mvwaddstr(widget->window, 1, 1, C_(text));
whline(widget->window, ' ' | gnt_color_pair(type), widget->priv.width - 4 - len);
mvwaddch(widget->window, 1, widget->priv.width - 3, ACS_VLINE | gnt_color_pair(GNT_COLOR_NORMAL));
mvwaddch(widget->window, 1, widget->priv.width - 2, ACS_DARROW | gnt_color_pair(GNT_COLOR_NORMAL));
(void)wmove(widget->window, 1, 1);
g_free(text);
GNTDEBUG;
}
static void
gnt_combo_box_size_request(GntWidget *widget)
{
if (!GNT_WIDGET_IS_FLAG_SET(widget, GNT_WIDGET_MAPPED))
{
GntWidget *dd = GNT_COMBO_BOX(widget)->dropdown;
gnt_widget_size_request(dd);
widget->priv.height = 3; /* For now, a combobox will have border */
widget->priv.width = MAX(10, dd->priv.width + 2);
}
}
static void
gnt_combo_box_map(GntWidget *widget)
{
if (widget->priv.width == 0 || widget->priv.height == 0)
gnt_widget_size_request(widget);
GNTDEBUG;
}
static void
popup_dropdown(GntComboBox *box)
{
GntWidget *widget = GNT_WIDGET(box);
GntWidget *parent = box->dropdown->parent;
int height = g_list_length(GNT_TREE(box->dropdown)->list);
int y = widget->priv.y + widget->priv.height - 1;
gnt_widget_set_size(box->dropdown, widget->priv.width, height + 2);
if (y + height + 2 >= getmaxy(stdscr))
y = widget->priv.y - height - 1;
gnt_widget_set_position(parent, widget->priv.x, y);
if (parent->window)
{
mvwin(parent->window, y, widget->priv.x);
wresize(parent->window, height+2, widget->priv.width);
}
parent->priv.width = widget->priv.width;
parent->priv.height = height + 2;
GNT_WIDGET_UNSET_FLAGS(parent, GNT_WIDGET_INVISIBLE);
gnt_widget_draw(parent);
}
static gboolean
gnt_combo_box_key_pressed(GntWidget *widget, const char *text)
{
GntComboBox *box = GNT_COMBO_BOX(widget);
gboolean showing = !!GNT_WIDGET_IS_FLAG_SET(box->dropdown->parent, GNT_WIDGET_MAPPED);
if (showing) {
if (text[1] == 0) {
switch (text[0]) {
case '\r':
case '\t':
case '\n':
hide_popup(box, TRUE);
return TRUE;
case 27:
hide_popup(box, FALSE);
return TRUE;
}
}
}
if (gnt_widget_key_pressed(box->dropdown, text)) {
if (!showing)
popup_dropdown(box);
return TRUE;
}
{
#define SEARCH_IN_RANGE(start, end) do { \
GntTreeRow *row; \
for (row = start; row != end; \
row = gnt_tree_row_get_next(tree, row)) { \
gpointer key = gnt_tree_row_get_key(tree, row); \
GList *list = gnt_tree_get_row_text_list(tree, key); \
gboolean found = FALSE; \
found = (list->data && g_ascii_strncasecmp(text, list->data, len) == 0); \
g_list_foreach(list, (GFunc)g_free, NULL); \
g_list_free(list); \
if (found) { \
if (!showing) \
popup_dropdown(box); \
gnt_tree_set_selected(tree, key); \
return TRUE; \
} \
} \
} while (0)
int len = strlen(text);
GntTree *tree = GNT_TREE(box->dropdown);
GntTreeRow *current = tree->current;
SEARCH_IN_RANGE(gnt_tree_row_get_next(tree, current), NULL);
SEARCH_IN_RANGE(tree->top, current);
#undef SEARCH_IN_RANGE
}
return FALSE;
}
static void
gnt_combo_box_destroy(GntWidget *widget)
{
gnt_widget_destroy(GNT_COMBO_BOX(widget)->dropdown->parent);
}
static void
gnt_combo_box_lost_focus(GntWidget *widget)
{
GntComboBox *combo = GNT_COMBO_BOX(widget);
if (GNT_WIDGET_IS_FLAG_SET(combo->dropdown->parent, GNT_WIDGET_MAPPED))
hide_popup(combo, FALSE);
widget_lost_focus(widget);
}
static gboolean
gnt_combo_box_clicked(GntWidget *widget, GntMouseEvent event, int x, int y)
{
GntComboBox *box = GNT_COMBO_BOX(widget);
gboolean dshowing = GNT_WIDGET_IS_FLAG_SET(box->dropdown->parent, GNT_WIDGET_MAPPED);
if (event == GNT_MOUSE_SCROLL_UP) {
if (dshowing)
gnt_widget_key_pressed(box->dropdown, GNT_KEY_UP);
} else if (event == GNT_MOUSE_SCROLL_DOWN) {
if (dshowing)
gnt_widget_key_pressed(box->dropdown, GNT_KEY_DOWN);
} else if (event == GNT_LEFT_MOUSE_DOWN) {
if (dshowing) {
hide_popup(box, TRUE);
} else {
popup_dropdown(GNT_COMBO_BOX(widget));
}
} else
return FALSE;
return TRUE;
}
static void
gnt_combo_box_size_changed(GntWidget *widget, int oldw, int oldh)
{
GntComboBox *box = GNT_COMBO_BOX(widget);
gnt_widget_set_size(box->dropdown, widget->priv.width - 1, box->dropdown->priv.height);
}
static gboolean
dropdown_menu(GntBindable *b, GList *null)
{
if (GNT_WIDGET_IS_FLAG_SET(GNT_COMBO_BOX(b)->dropdown->parent, GNT_WIDGET_MAPPED))
return FALSE;
popup_dropdown(GNT_COMBO_BOX(b));
return TRUE;
}
static void
gnt_combo_box_class_init(GntComboBoxClass *klass)
{
GntBindableClass *bindable = GNT_BINDABLE_CLASS(klass);
parent_class = GNT_WIDGET_CLASS(klass);
parent_class->destroy = gnt_combo_box_destroy;
parent_class->draw = gnt_combo_box_draw;
parent_class->map = gnt_combo_box_map;
parent_class->size_request = gnt_combo_box_size_request;
parent_class->key_pressed = gnt_combo_box_key_pressed;
parent_class->clicked = gnt_combo_box_clicked;
parent_class->size_changed = gnt_combo_box_size_changed;
widget_lost_focus = parent_class->lost_focus;
parent_class->lost_focus = gnt_combo_box_lost_focus;
signals[SIG_SELECTION_CHANGED] =
g_signal_new("selection-changed",
G_TYPE_FROM_CLASS(klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
gnt_closure_marshal_VOID__POINTER_POINTER,
G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);
gnt_bindable_class_register_action(bindable, "dropdown", dropdown_menu,
GNT_KEY_DOWN, NULL);
gnt_bindable_register_binding(bindable, "dropdown", GNT_KEY_UP, NULL);
gnt_style_read_actions(G_OBJECT_CLASS_TYPE(klass), bindable);
GNTDEBUG;
}
static void
gnt_combo_box_init(GTypeInstance *instance, gpointer class)
{
GntWidget *box;
GntWidget *widget = GNT_WIDGET(instance);
GntComboBox *combo = GNT_COMBO_BOX(instance);
GNT_WIDGET_SET_FLAGS(GNT_WIDGET(instance),
GNT_WIDGET_GROW_X | GNT_WIDGET_CAN_TAKE_FOCUS | GNT_WIDGET_NO_SHADOW);
combo->dropdown = gnt_tree_new();
box = gnt_box_new(FALSE, FALSE);
GNT_WIDGET_SET_FLAGS(box, GNT_WIDGET_NO_SHADOW | GNT_WIDGET_NO_BORDER | GNT_WIDGET_TRANSIENT);
gnt_box_set_pad(GNT_BOX(box), 0);
gnt_box_add_widget(GNT_BOX(box), combo->dropdown);
widget->priv.minw = 4;
widget->priv.minh = 3;
GNTDEBUG;
}
/******************************************************************************
* GntComboBox API
*****************************************************************************/
GType
gnt_combo_box_get_gtype(void)
{
static GType type = 0;
if(type == 0)
{
static const GTypeInfo info = {
sizeof(GntComboBoxClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc)gnt_combo_box_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof(GntComboBox),
0, /* n_preallocs */
gnt_combo_box_init, /* instance_init */
NULL /* value_table */
};
type = g_type_register_static(GNT_TYPE_WIDGET,
"GntComboBox",
&info, 0);
}
return type;
}
GntWidget *gnt_combo_box_new()
{
GntWidget *widget = g_object_new(GNT_TYPE_COMBO_BOX, NULL);
return widget;
}
void gnt_combo_box_add_data(GntComboBox *box, gpointer key, const char *text)
{
gnt_tree_add_row_last(GNT_TREE(box->dropdown), key,
gnt_tree_create_row(GNT_TREE(box->dropdown), text), NULL);
if (box->selected == NULL)
set_selection(box, key);
}
gpointer gnt_combo_box_get_selected_data(GntComboBox *box)
{
return box->selected;
}
void gnt_combo_box_set_selected(GntComboBox *box, gpointer key)
{
set_selection(box, key);
}
void gnt_combo_box_remove(GntComboBox *box, gpointer key)
{
gnt_tree_remove(GNT_TREE(box->dropdown), key);
if (box->selected == key)
set_selection(box, NULL);
}
void gnt_combo_box_remove_all(GntComboBox *box)
{
gnt_tree_remove_all(GNT_TREE(box->dropdown));
set_selection(box, NULL);
}