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(probably an outdated installation, or a third party SSL plugin).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.
/*
* purple
*
* File: win32dep.h
*
* Copyright (C) 2002-2003, Herman Bloggs <hermanator12002@yahoo.com>
*
* This program 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
*
*/
#ifndef _WIN32DEP_H_
#define _WIN32DEP_H_
#include <winsock2.h>
#include <windows.h>
#include <shlobj.h>
#include <process.h>
#include "wpurpleerror.h"
#include "libc_interface.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* the winapi headers don't yet have winhttp.h, so we use the struct from msdn directly */
typedef struct {
BOOL fAutoDetect;
LPWSTR lpszAutoConfigUrl;
LPWSTR lpszProxy;
LPWSTR lpszProxyBypass;
} WINHTTP_CURRENT_USER_IE_PROXY_CONFIG;
/* rpcndr.h defines small as char, causing problems, so we need to undefine it */
#undef small
/*
* PROTOS
*/
/**
** win32dep.c
**/
/* Windows helper functions */
FARPROC wpurple_find_and_loadproc(const char *dllname, const char *procedure);
gboolean wpurple_read_reg_dword(HKEY rootkey, const char *subkey, const char *valname, LPDWORD result);
char *wpurple_read_reg_string(HKEY rootkey, const char *subkey, const char *valname); /* needs to be g_free'd */
gboolean wpurple_write_reg_string(HKEY rootkey, const char *subkey, const char *valname, const char *value);
char *wpurple_escape_dirsep(const char *filename); /* needs to be g_free'd */
GIOChannel *wpurple_g_io_channel_win32_new_socket(int socket); /* Until we get the post-2.8 glib win32 giochannel implementation working, use the thread-based one */
/* Determine Purple paths */
gchar *wpurple_get_special_folder(int folder_type); /* needs to be g_free'd */
const char *wpurple_install_dir(void);
const char *wpurple_lib_dir(void);
const char *wpurple_locale_dir(void);
const char *wpurple_data_dir(void);
/* init / cleanup */
void wpurple_init(void);
void wpurple_cleanup(void);
long wpurple_get_tz_offset(void);
/*
* MACROS
*/
/*
* Purple specific
*/
#define DATADIR wpurple_install_dir()
#define LIBDIR wpurple_lib_dir()
#define LOCALEDIR wpurple_locale_dir()
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _WIN32DEP_H_ */