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(probably an outdated installation, or a third party SSL plugin).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 <string.h>
#include "gntinternal.h"
#undef GNT_LOG_DOMAIN
#define GNT_LOG_DOMAIN "Bindable"
#include "gntbindable.h"
#include "gntstyle.h"
#include "gnt.h"
#include "gntutils.h"
#include "gnttextview.h"
#include "gnttree.h"
#include "gntbox.h"
#include "gntbutton.h"
#include "gntwindow.h"
#include "gntlabel.h"
static GObjectClass *parent_class = NULL;
static struct
{
char * okeys; /* Old keystrokes */
char * keys; /* New Keystrokes being bound to the action */
GntBindableClass * klass; /* Class of the object that's getting keys rebound */
char * name; /* The name of the action */
GList * params; /* The list of paramaters */
} rebind_info;
static void
gnt_bindable_free_rebind_info(void)
{
g_free(rebind_info.name);
g_free(rebind_info.keys);
g_free(rebind_info.okeys);
}
static void
gnt_bindable_rebinding_cancel(GntWidget *button, gpointer data)
{
gnt_bindable_free_rebind_info();
gnt_widget_destroy(GNT_WIDGET(data));
}
static void
gnt_bindable_rebinding_rebind(GntWidget *button, gpointer data)
{
if (rebind_info.keys) {
gnt_bindable_register_binding(rebind_info.klass,
NULL,
rebind_info.okeys,
rebind_info.params);
gnt_bindable_register_binding(rebind_info.klass,
rebind_info.name,
rebind_info.keys,
rebind_info.params);
}
gnt_bindable_free_rebind_info();
gnt_widget_destroy(GNT_WIDGET(data));
}
static gboolean
gnt_bindable_rebinding_grab_key(GntBindable *bindable, const char *text, gpointer data)
{
GntTextView *textview = GNT_TEXT_VIEW(data);
char *new_text;
const char *tmp;
if (text && *text) {
/* Rebinding tab or enter for something is probably not that great an idea */
if (!strcmp(text, GNT_KEY_CTRL_I) || !strcmp(text, GNT_KEY_ENTER)) {
return FALSE;
}
tmp = gnt_key_lookup(text);
new_text = g_strdup_printf("KEY: \"%s\"", tmp);
gnt_text_view_clear(textview);
gnt_text_view_append_text_with_flags(textview, new_text, GNT_TEXT_FLAG_NORMAL);
g_free(new_text);
g_free(rebind_info.keys);
rebind_info.keys = g_strdup(text);
return TRUE;
}
return FALSE;
}
static void
gnt_bindable_rebinding_activate(GntBindable *data, gpointer bindable)
{
const char *widget_name = g_type_name(G_OBJECT_TYPE(bindable));
char *keys;
GntWidget *key_textview;
GntWidget *label;
GntWidget *bind_button, *cancel_button;
GntWidget *button_box;
GList *current_row_data;
char *tmp;
GntWidget *win = gnt_window_new();
GntTree *tree = GNT_TREE(data);
GntWidget *vbox = gnt_box_new(FALSE, TRUE);
rebind_info.klass = GNT_BINDABLE_GET_CLASS(bindable);
current_row_data = gnt_tree_get_selection_text_list(tree);
rebind_info.name = g_strdup(g_list_nth_data(current_row_data, 1));
keys = gnt_tree_get_selection_data(tree);
rebind_info.okeys = g_strdup(gnt_key_translate(keys));
rebind_info.params = NULL;
g_list_foreach(current_row_data, (GFunc)g_free, NULL);
g_list_free(current_row_data);
gnt_box_set_alignment(GNT_BOX(vbox), GNT_ALIGN_MID);
gnt_box_set_title(GNT_BOX(win), "Key Capture");
tmp = g_strdup_printf("Type the new bindings for %s in a %s.", rebind_info.name, widget_name);
label = gnt_label_new(tmp);
g_free(tmp);
gnt_box_add_widget(GNT_BOX(vbox), label);
tmp = g_strdup_printf("KEY: \"%s\"", keys);
key_textview = gnt_text_view_new();
gnt_widget_set_size(key_textview, key_textview->priv.x, 2);
gnt_text_view_append_text_with_flags(GNT_TEXT_VIEW(key_textview), tmp, GNT_TEXT_FLAG_NORMAL);
g_free(tmp);
gnt_widget_set_name(key_textview, "keystroke");
gnt_box_add_widget(GNT_BOX(vbox), key_textview);
g_signal_connect(G_OBJECT(win), "key_pressed", G_CALLBACK(gnt_bindable_rebinding_grab_key), key_textview);
button_box = gnt_box_new(FALSE, FALSE);
bind_button = gnt_button_new("BIND");
gnt_widget_set_name(bind_button, "bind");
gnt_box_add_widget(GNT_BOX(button_box), bind_button);
cancel_button = gnt_button_new("Cancel");
gnt_widget_set_name(cancel_button, "cancel");
gnt_box_add_widget(GNT_BOX(button_box), cancel_button);
g_signal_connect(G_OBJECT(bind_button), "activate", G_CALLBACK(gnt_bindable_rebinding_rebind), win);
g_signal_connect(G_OBJECT(cancel_button), "activate", G_CALLBACK(gnt_bindable_rebinding_cancel), win);
gnt_box_add_widget(GNT_BOX(vbox), button_box);
gnt_box_add_widget(GNT_BOX(win), vbox);
gnt_widget_show(win);
}
typedef struct
{
GHashTable *hash;
GntTree *tree;
} BindingView;
static void
add_binding(gpointer key, gpointer value, gpointer data)
{
BindingView *bv = data;
GntBindableActionParam *act = value;
const char *name = g_hash_table_lookup(bv->hash, act->action);
if (name && *name) {
const char *k = gnt_key_lookup(key);
if (!k)
k = key;
gnt_tree_add_row_after(bv->tree, (gpointer)k,
gnt_tree_create_row(bv->tree, k, name), NULL, NULL);
}
}
static void
add_action(gpointer key, gpointer value, gpointer data)
{
BindingView *bv = data;
g_hash_table_insert(bv->hash, value, key);
}
static void
gnt_bindable_class_init(GntBindableClass *klass)
{
parent_class = g_type_class_peek_parent(klass);
klass->actions = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)gnt_bindable_action_free);
klass->bindings = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)gnt_bindable_action_param_free);
gnt_style_read_actions(G_OBJECT_CLASS_TYPE(klass), GNT_BINDABLE_CLASS(klass));
GNTDEBUG;
}
static gpointer
bindable_clone(GntBindableAction *action)
{
GntBindableAction *ret = g_new0(GntBindableAction, 1);
ret->name = g_strdup(action->name);
ret->u = action->u;
return ret;
}
static gpointer
binding_clone(GntBindableActionParam *param)
{
GntBindableActionParam *p = g_new0(GntBindableActionParam, 1);
p->list = g_list_copy(param->list);
p->action = param->action;
return p;
}
static void
duplicate_hashes(GntBindableClass *klass)
{
/* Duplicate the bindings from parent class */
if (klass->actions) {
klass->actions = g_hash_table_duplicate(klass->actions, g_str_hash,
g_str_equal, g_free, (GDestroyNotify)gnt_bindable_action_free,
(GDupFunc)g_strdup, (GDupFunc)bindable_clone);
klass->bindings = g_hash_table_duplicate(klass->bindings, g_str_hash,
g_str_equal, g_free, (GDestroyNotify)gnt_bindable_action_param_free,
(GDupFunc)g_strdup, (GDupFunc)binding_clone);
} else {
klass->actions = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)gnt_bindable_action_free);
klass->bindings = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)gnt_bindable_action_param_free);
}
GNTDEBUG;
}
/******************************************************************************
* GntBindable API
*****************************************************************************/
GType
gnt_bindable_get_gtype(void)
{
static GType type = 0;
if (type == 0) {
static const GTypeInfo info = {
sizeof(GntBindableClass),
(GBaseInitFunc)duplicate_hashes, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc)gnt_bindable_class_init,
NULL,
NULL, /* class_data */
sizeof(GntBindable),
0, /* n_preallocs */
NULL, /* instance_init */
NULL /* value_table */
};
type = g_type_register_static(G_TYPE_OBJECT,
"GntBindable",
&info, G_TYPE_FLAG_ABSTRACT);
}
return type;
}
/**
* Key Remaps
*/
const char *
gnt_bindable_remap_keys(GntBindable *bindable, const char *text)
{
const char *remap = NULL;
GType type = G_OBJECT_TYPE(bindable);
GntBindableClass *klass = GNT_BINDABLE_CLASS(GNT_BINDABLE_GET_CLASS(bindable));
if (klass->remaps == NULL)
{
klass->remaps = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
gnt_styles_get_keyremaps(type, klass->remaps);
}
remap = g_hash_table_lookup(klass->remaps, text);
return (remap ? remap : text);
}
/**
* Actions and Bindings
*/
gboolean
gnt_bindable_perform_action_named(GntBindable *bindable, const char *name, ...)
{
GntBindableClass *klass = GNT_BINDABLE_CLASS(GNT_BINDABLE_GET_CLASS(bindable));
GList *list = NULL;
va_list args;
GntBindableAction *action;
void *p;
va_start(args, name);
while ((p = va_arg(args, void *)) != NULL)
list = g_list_append(list, p);
va_end(args);
action = g_hash_table_lookup(klass->actions, name);
if (action && action->u.action) {
return action->u.action(bindable, list);
}
return FALSE;
}
gboolean
gnt_bindable_perform_action_key(GntBindable *bindable, const char *keys)
{
GntBindableClass *klass = GNT_BINDABLE_CLASS(GNT_BINDABLE_GET_CLASS(bindable));
GntBindableActionParam *param = g_hash_table_lookup(klass->bindings, keys);
if (param && param->action) {
if (param->list)
return param->action->u.action(bindable, param->list);
else
return param->action->u.action_noparam(bindable);
}
return FALSE;
}
gboolean
gnt_bindable_check_key(GntBindable *bindable, const char *keys) {
GntBindableClass *klass = GNT_BINDABLE_CLASS(GNT_BINDABLE_GET_CLASS(bindable));
GntBindableActionParam *param = g_hash_table_lookup(klass->bindings, keys);
return (param && param->action);
}
static void
register_binding(GntBindableClass *klass, const char *name, const char *trigger, GList *list)
{
GntBindableActionParam *param;
GntBindableAction *action;
if (name == NULL || *name == '\0') {
g_hash_table_remove(klass->bindings, (char*)trigger);
gnt_keys_del_combination(trigger);
return;
}
action = g_hash_table_lookup(klass->actions, name);
if (!action) {
gnt_warning("Invalid action name %s for %s",
name, g_type_name(G_OBJECT_CLASS_TYPE(klass)));
if (list)
g_list_free(list);
return;
}
param = g_new0(GntBindableActionParam, 1);
param->action = action;
param->list = list;
g_hash_table_replace(klass->bindings, g_strdup(trigger), param);
gnt_keys_add_combination(trigger);
}
void gnt_bindable_register_binding(GntBindableClass *klass, const char *name,
const char *trigger, ...)
{
GList *list = NULL;
va_list args;
void *data;
va_start(args, trigger);
while ((data = va_arg(args, void *))) {
list = g_list_append(list, data);
}
va_end(args);
register_binding(klass, name, trigger, list);
}
void gnt_bindable_class_register_action(GntBindableClass *klass, const char *name,
GntBindableActionCallback callback, const char *trigger, ...)
{
void *data;
va_list args;
GntBindableAction *action = g_new0(GntBindableAction, 1);
GList *list;
action->name = g_strdup(name);
action->u.action = callback;
g_hash_table_replace(klass->actions, g_strdup(name), action);
if (trigger && *trigger) {
list = NULL;
va_start(args, trigger);
while ((data = va_arg(args, void *))) {
list = g_list_append(list, data);
}
va_end(args);
register_binding(klass, name, trigger, list);
}
}
void gnt_bindable_action_free(GntBindableAction *action)
{
g_free(action->name);
g_free(action);
}
void gnt_bindable_action_param_free(GntBindableActionParam *param)
{
g_list_free(param->list); /* XXX: There may be a leak here for string parameters */
g_free(param);
}
GntBindable * gnt_bindable_bindings_view(GntBindable *bind)
{
GntBindable *tree = GNT_BINDABLE(gnt_tree_new_with_columns(2));
GntBindableClass *klass = GNT_BINDABLE_CLASS(GNT_BINDABLE_GET_CLASS(bind));
GHashTable *hash = g_hash_table_new(g_direct_hash, g_direct_equal);
BindingView bv = {hash, GNT_TREE(tree)};
gnt_tree_set_compare_func(bv.tree, (GCompareFunc)g_utf8_collate);
g_hash_table_foreach(klass->actions, add_action, &bv);
g_hash_table_foreach(klass->bindings, add_binding, &bv);
if (GNT_TREE(tree)->list == NULL) {
gnt_widget_destroy(GNT_WIDGET(tree));
tree = NULL;
} else
gnt_tree_adjust_columns(bv.tree);
g_hash_table_destroy(hash);
return tree;
}
static void
reset_binding_window(GntBindableClass *window, gpointer k)
{
GntBindableClass *klass = GNT_BINDABLE_CLASS(k);
klass->help_window = NULL;
}
gboolean
gnt_bindable_build_help_window(GntBindable *bindable)
{
GntWidget *tree;
GntBindableClass *klass = GNT_BINDABLE_GET_CLASS(bindable);
char *title;
tree = GNT_WIDGET(gnt_bindable_bindings_view(bindable));
klass->help_window = GNT_BINDABLE(gnt_window_new());
title = g_strdup_printf("Bindings for %s", g_type_name(G_OBJECT_TYPE(bindable)));
gnt_box_set_title(GNT_BOX(klass->help_window), title);
if (tree) {
g_signal_connect(G_OBJECT(tree), "activate", G_CALLBACK(gnt_bindable_rebinding_activate), bindable);
gnt_box_add_widget(GNT_BOX(klass->help_window), tree);
} else
gnt_box_add_widget(GNT_BOX(klass->help_window), gnt_label_new("This widget has no customizable bindings."));
g_signal_connect(G_OBJECT(klass->help_window), "destroy", G_CALLBACK(reset_binding_window), klass);
gnt_widget_show(GNT_WIDGET(klass->help_window));
g_free(title);
return TRUE;
}