author | Mikael Berthe <mikael@lilotux.net> |
Sun, 05 Jun 2016 20:06:46 +0200 | |
changeset 2268 | f5402d705f67 |
parent 2238 | a34c8b41e0b5 |
permissions | -rw-r--r-- |
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/* |
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* pgp.c -- PGP utility functions |
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* |
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* Copyright (C) 2006-2015 Mikael Berthe <mikael@lilotux.net> |
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* Some parts inspired by centericq (impgp.cc) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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#include <config.h> |
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|
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#ifdef HAVE_GPGME |
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|
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <locale.h> |
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#include <sys/mman.h> |
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#include <glib.h> |
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#include "pgp.h" |
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#include "settings.h" |
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#include "utils.h" |
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#include "logprint.h" |
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#define MIN_GPGME_VERSION "1.1.0" |
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static struct gpg_struct |
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{ |
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int enabled; |
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int version1; |
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char *private_key; |
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char *passphrase; |
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} gpg; |
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// gpg_init(priv_key, passphrase) |
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// Initialize the GPG sub-systems. This function must be invoked early. |
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// Note: priv_key & passphrase are optional, they can be set later. |
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// This function returns 0 if gpgme is available and initialized; |
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// if not it returns the gpgme error code. |
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int gpg_init(const char *priv_key, const char *passphrase) |
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{ |
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gpgme_error_t err; |
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gpgme_ctx_t ctx; |
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gpgme_engine_info_t info; |
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const char *gpg_path, *gpg_home; |
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// Check for version and OpenPGP protocol support. |
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if (!gpgme_check_version(MIN_GPGME_VERSION)) { |
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scr_LogPrint(LPRINT_LOGNORM, |
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"GPGME initialization error: Bad library version"); |
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return -1; |
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} |
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err = gpgme_engine_check_version(GPGME_PROTOCOL_OpenPGP); |
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if (err) { |
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scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
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"GPGME initialization error: %s", gpgme_strerror(err)); |
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return err; |
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} |
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|
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// Set the locale information. |
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gpgme_set_locale(NULL, LC_CTYPE, setlocale(LC_CTYPE, NULL)); |
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gpgme_set_locale(NULL, LC_MESSAGES, setlocale(LC_MESSAGES, NULL)); |
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// The path to the gpg binary can be specified in order to force |
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// version 1, for example. |
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gpg_path = settings_opt_get("gpg_path"); |
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gpg_home = settings_opt_get("gpg_home"); |
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if (gpg_path || gpg_home) { |
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char *xp_gpg_home = expand_filename(gpg_home); |
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err = gpgme_set_engine_info(GPGME_PROTOCOL_OpenPGP, gpg_path, xp_gpg_home); |
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g_free(xp_gpg_home); |
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if (err) return -1; |
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} |
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// Store private data. |
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gpg_set_private_key(priv_key); |
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gpg_set_passphrase(passphrase); |
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err = gpgme_new(&ctx); |
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if (err) return -1; |
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// Check OpenPGP engine version; with version 2+ the agent is mandatory |
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// and we do not manage the passphrase. |
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gpgme_set_protocol(ctx, GPGME_PROTOCOL_OpenPGP); |
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if (err) return -1; |
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|
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err = gpgme_get_engine_info(&info); |
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if (!err) { |
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while (info && info->protocol != gpgme_get_protocol(ctx)) |
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info = info->next; |
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|
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if (info && info->version) { |
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if (!strncmp(info->version, "1.", 2)) |
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gpg.version1 = TRUE; |
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scr_log_print(LPRINT_DEBUG, "GPGME: Engine version is '%s'.", |
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info->version); |
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} |
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} |
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gpgme_release(ctx); |
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116 |
gpg.enabled = 1; |
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117 |
return 0; |
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118 |
} |
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119 |
|
2196
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120 |
// gpg_is_version1() |
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121 |
// Return TRUE if the GnuPG OpenPGP engine version is 1.x |
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122 |
int gpg_is_version1(void) |
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123 |
{ |
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124 |
return gpg.version1; |
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125 |
} |
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126 |
|
1041
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127 |
// gpg_terminate() |
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128 |
// Destroy data and free memory. |
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129 |
void gpg_terminate(void) |
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130 |
{ |
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131 |
gpg.enabled = 0; |
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132 |
gpg_set_passphrase(NULL); |
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133 |
gpg_set_private_key(NULL); |
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134 |
} |
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135 |
|
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136 |
// gpg_set_passphrase(passphrase) |
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137 |
// Set the current passphrase (use NULL to erase it). |
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138 |
void gpg_set_passphrase(const char *passphrase) |
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139 |
{ |
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140 |
// Remove current passphrase |
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141 |
if (gpg.passphrase) { |
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142 |
ssize_t len = strlen(gpg.passphrase); |
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143 |
memset(gpg.passphrase, 0, len); |
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144 |
munlock(gpg.passphrase, len); |
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145 |
g_free(gpg.passphrase); |
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146 |
} |
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147 |
if (passphrase) { |
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148 |
gpg.passphrase = g_strdup(passphrase); |
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149 |
mlock(gpg.passphrase, strlen(gpg.passphrase)); |
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150 |
} else { |
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151 |
gpg.passphrase = NULL; |
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152 |
} |
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153 |
} |
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154 |
|
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155 |
// gpg_set_private_key(keyid) |
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156 |
// Set the current private key id (use NULL to unset it). |
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157 |
void gpg_set_private_key(const char *priv_keyid) |
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158 |
{ |
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159 |
g_free(gpg.private_key); |
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160 |
if (priv_keyid) |
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161 |
gpg.private_key = g_strdup(priv_keyid); |
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162 |
else |
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163 |
gpg.private_key = NULL; |
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164 |
} |
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165 |
|
2188
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166 |
// gpg_get_private_key_id() |
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167 |
// Return the current private key id (static string). |
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168 |
const char *gpg_get_private_key_id(void) |
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169 |
{ |
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170 |
return gpg.private_key; |
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171 |
} |
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172 |
|
1041
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173 |
// strip_header_footer(data) |
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174 |
// Remove PGP header & footer from data. |
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175 |
// Return a new string, or NULL. |
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176 |
// The string must be freed by the caller with g_free() when no longer needed. |
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177 |
static char *strip_header_footer(const char *data) |
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178 |
{ |
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179 |
char *p, *q; |
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180 |
|
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|
181 |
if (!data) |
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|
182 |
return NULL; |
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183 |
|
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184 |
// p: beginning of real data |
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185 |
// q: end of real data |
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186 |
|
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187 |
// Strip header (to the first empty line) |
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|
188 |
p = strstr(data, "\n\n"); |
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|
189 |
if (!p) |
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190 |
return g_strdup(data); |
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191 |
|
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192 |
// Strip footer |
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193 |
// We want to remove the last lines, until the line beginning with a '-' |
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194 |
p += 2; |
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195 |
for (q = p ; *q; q++) ; |
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196 |
// (q is at the end of data now) |
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197 |
for (q--; q > p && (*q != '\n' || *(q+1) != '-'); q--) ; |
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|
198 |
|
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199 |
if (q <= p) |
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|
200 |
return NULL; // Shouldn't happen... |
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|
201 |
|
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202 |
return g_strndup(p, q-p); |
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|
203 |
} |
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|
204 |
|
1598 | 205 |
// GCC ignores casts to void, thus we need to hack around that |
206 |
static inline void ignore(void*x) {} |
|
207 |
||
1041
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208 |
// passphrase_cb() |
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209 |
// GPGME passphrase callback function. |
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210 |
static gpgme_error_t passphrase_cb(void *hook, const char *uid_hint, |
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211 |
const char *passphrase_info, int prev_was_bad, int fd) |
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|
212 |
{ |
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213 |
ssize_t len; |
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214 |
|
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215 |
// Abort if we do not have the password. |
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216 |
if (!gpg.passphrase) { |
1598 | 217 |
ignore((void*)write(fd, "\n", 1)); // We have an error anyway, thus it does |
218 |
// not matter if we fail again. |
|
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219 |
return gpg_error(GPG_ERR_CANCELED); |
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220 |
} |
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221 |
|
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222 |
// Write the passphrase to the file descriptor. |
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|
223 |
len = strlen(gpg.passphrase); |
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224 |
if (write(fd, gpg.passphrase, len) != len) |
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|
225 |
return gpg_error(GPG_ERR_CANCELED); |
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226 |
if (write(fd, "\n", 1) != 1) |
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227 |
return gpg_error(GPG_ERR_CANCELED); |
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|
228 |
|
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229 |
return 0; // Success |
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230 |
} |
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231 |
|
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232 |
// gpg_verify(gpg_data, text, *sigsum) |
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233 |
// Verify that gpg_data is a correct signature for text. |
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234 |
// Return the key id (or fingerprint), and set *sigsum to |
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|
235 |
// the gpgme signature summary value. |
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|
236 |
// The returned string must be freed with g_free() after use. |
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|
237 |
char *gpg_verify(const char *gpg_data, const char *text, |
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|
238 |
gpgme_sigsum_t *sigsum) |
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|
239 |
{ |
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|
240 |
gpgme_ctx_t ctx; |
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|
241 |
gpgme_data_t data_sign, data_text; |
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|
242 |
char *data; |
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243 |
char *verified_key = NULL; |
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244 |
gpgme_key_t key; |
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245 |
gpgme_error_t err; |
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|
246 |
const char prefix[] = "-----BEGIN PGP SIGNATURE-----\n\n"; |
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247 |
const char suffix[] = "\n-----END PGP SIGNATURE-----\n"; |
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248 |
|
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249 |
// Reset the summary. |
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|
250 |
*sigsum = 0; |
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|
251 |
|
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252 |
if (!gpg.enabled) |
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|
253 |
return NULL; |
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|
254 |
|
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|
255 |
err = gpgme_new(&ctx); |
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|
256 |
if (err) { |
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|
257 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
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|
258 |
"GPGME error: %s", gpgme_strerror(err)); |
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|
259 |
return NULL; |
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|
260 |
} |
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|
261 |
|
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|
262 |
gpgme_set_protocol(ctx, GPGME_PROTOCOL_OpenPGP); |
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|
263 |
|
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264 |
// Surround the given data with the prefix & suffix |
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|
265 |
data = g_new(char, sizeof(prefix) + sizeof(suffix) + strlen(gpg_data)); |
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|
266 |
strcpy(data, prefix); |
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|
267 |
strcat(data, gpg_data); |
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|
268 |
strcat(data, suffix); |
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|
269 |
|
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270 |
err = gpgme_data_new_from_mem(&data_sign, data, strlen(data), 0); |
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|
271 |
if (!err) { |
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272 |
err = gpgme_data_new_from_mem(&data_text, text, strlen(text), 0); |
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|
273 |
if (!err) { |
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|
274 |
err = gpgme_op_verify(ctx, data_sign, data_text, 0); |
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|
275 |
if (!err) { |
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|
276 |
gpgme_verify_result_t vr = gpgme_op_verify_result(ctx); |
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|
277 |
if (vr && vr->signatures) { |
2200
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|
278 |
gpgme_signature_t s = NULL; |
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|
279 |
// check all signatures and stop if the first could be verified |
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|
280 |
for (s = vr->signatures; s && !verified_key; s = s->next) { |
2200
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|
281 |
// Found the fingerprint. Let's try to get the key id. |
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|
282 |
if (NULL != s->fpr) { |
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|
283 |
if (!gpgme_get_key(ctx, s->fpr, &key, 0)) { |
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|
284 |
if (key) { |
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|
285 |
verified_key = g_strdup(key->subkeys->keyid); |
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|
286 |
gpgme_key_release(key); |
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|
287 |
} |
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|
288 |
} |
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|
289 |
} |
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|
290 |
*sigsum = s->summary; |
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|
291 |
// For some reason summary could be 0 when status is 0 too, |
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|
292 |
// which means the signature is valid... |
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|
293 |
if ((!*sigsum) && (!s->status)) |
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|
294 |
*sigsum = GPGME_SIGSUM_GREEN; |
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|
295 |
} |
1041
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|
296 |
} |
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|
297 |
} |
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|
298 |
gpgme_data_release(data_text); |
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changeset
|
299 |
} |
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|
300 |
gpgme_data_release(data_sign); |
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|
301 |
} |
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|
302 |
if (err) |
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changeset
|
303 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
1047
0dc104d51dce
PGP: Better error messages
Mikael Berthe <mikael@lilotux.net>
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1041
diff
changeset
|
304 |
"GPGME verification error: %s", gpgme_strerror(err)); |
1041
d4b97a2423eb
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diff
changeset
|
305 |
gpgme_release(ctx); |
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diff
changeset
|
306 |
g_free(data); |
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diff
changeset
|
307 |
return verified_key; |
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
308 |
} |
d4b97a2423eb
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changeset
|
309 |
|
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|
310 |
// gpg_sign(gpg_data) |
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|
311 |
// Return a signature of gpg_data (or NULL). |
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|
312 |
// The returned string must be freed with g_free() after use. |
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diff
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|
313 |
char *gpg_sign(const char *gpg_data) |
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diff
changeset
|
314 |
{ |
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changeset
|
315 |
gpgme_ctx_t ctx; |
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diff
changeset
|
316 |
gpgme_data_t in, out; |
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diff
changeset
|
317 |
char *signed_data = NULL; |
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
318 |
size_t nread; |
d4b97a2423eb
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diff
changeset
|
319 |
gpgme_key_t key; |
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diff
changeset
|
320 |
gpgme_error_t err; |
d4b97a2423eb
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diff
changeset
|
321 |
|
d4b97a2423eb
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diff
changeset
|
322 |
if (!gpg.enabled || !gpg.private_key) |
d4b97a2423eb
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diff
changeset
|
323 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
324 |
|
d4b97a2423eb
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diff
changeset
|
325 |
err = gpgme_new(&ctx); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
326 |
if (err) { |
d4b97a2423eb
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parents:
diff
changeset
|
327 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
328 |
"GPGME error: %s", gpgme_strerror(err)); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
329 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
330 |
} |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
331 |
|
d4b97a2423eb
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diff
changeset
|
332 |
gpgme_set_protocol(ctx, GPGME_PROTOCOL_OpenPGP); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
333 |
gpgme_set_textmode(ctx, 0); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
334 |
gpgme_set_armor(ctx, 1); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
335 |
|
2196
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
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2195
diff
changeset
|
336 |
if (gpg.version1) { |
8811fe9d6ef0
Improve support for GnuPG v2+
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2195
diff
changeset
|
337 |
// GPG_AGENT_INFO isn't used by GnuPG version 2+ |
8811fe9d6ef0
Improve support for GnuPG v2+
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2195
diff
changeset
|
338 |
char *p = getenv("GPG_AGENT_INFO"); |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
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2195
diff
changeset
|
339 |
if (!(p && strchr(p, ':'))) |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
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2195
diff
changeset
|
340 |
gpgme_set_passphrase_cb(ctx, passphrase_cb, 0); |
8811fe9d6ef0
Improve support for GnuPG v2+
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2195
diff
changeset
|
341 |
} |
1041
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
342 |
|
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
343 |
err = gpgme_get_key(ctx, gpg.private_key, &key, 1); |
1105
265e1d873d3e
PGP: Improve checks for missing keys
Mikael Berthe <mikael@lilotux.net>
parents:
1057
diff
changeset
|
344 |
if (err || !key) { |
1049
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
Mikael Berthe <mikael@lilotux.net>
parents:
1047
diff
changeset
|
345 |
scr_LogPrint(LPRINT_LOGNORM, "GPGME error: private key not found"); |
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
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1047
diff
changeset
|
346 |
gpgme_release(ctx); |
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
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1047
diff
changeset
|
347 |
return NULL; |
1041
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
348 |
} |
1049
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
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1047
diff
changeset
|
349 |
|
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
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1047
diff
changeset
|
350 |
gpgme_signers_clear(ctx); |
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
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parents:
1047
diff
changeset
|
351 |
gpgme_signers_add(ctx, key); |
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
Mikael Berthe <mikael@lilotux.net>
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1047
diff
changeset
|
352 |
gpgme_key_release(key); |
ad5de4d1ee56
PGP: Give a more useful error message when the private key isn't found
Mikael Berthe <mikael@lilotux.net>
parents:
1047
diff
changeset
|
353 |
err = gpgme_data_new_from_mem(&in, gpg_data, strlen(gpg_data), 0); |
1041
d4b97a2423eb
Introduce PGP utility functions
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diff
changeset
|
354 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
355 |
err = gpgme_data_new(&out); |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
356 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
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parents:
diff
changeset
|
357 |
err = gpgme_op_sign(ctx, in, out, GPGME_SIG_MODE_DETACH); |
2202
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
358 |
if (err) { |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
359 |
gpgme_data_release(out); |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
360 |
} else { |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
361 |
signed_data = gpgme_data_release_and_get_mem(out, &nread); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
362 |
if (signed_data) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
363 |
// We need to add a trailing NULL |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
364 |
char *dd = g_strndup(signed_data, nread); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
365 |
free(signed_data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
366 |
signed_data = strip_header_footer(dd); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
367 |
g_free(dd); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
368 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
369 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
370 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
371 |
gpgme_data_release(in); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
372 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
373 |
if (err && err != GPG_ERR_CANCELED) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
374 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
1047
0dc104d51dce
PGP: Better error messages
Mikael Berthe <mikael@lilotux.net>
parents:
1041
diff
changeset
|
375 |
"GPGME signature error: %s", gpgme_strerror(err)); |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
376 |
gpgme_release(ctx); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
377 |
return signed_data; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
378 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
379 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
380 |
// gpg_decrypt(gpg_data) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
381 |
// Return decrypted gpg_data (or NULL). |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
382 |
// The returned string must be freed with g_free() after use. |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
383 |
char *gpg_decrypt(const char *gpg_data) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
384 |
{ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
385 |
gpgme_ctx_t ctx; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
386 |
gpgme_data_t in, out; |
2196
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
387 |
char *data; |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
388 |
char *decrypted_data = NULL; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
389 |
size_t nread; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
390 |
gpgme_error_t err; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
391 |
const char prefix[] = "-----BEGIN PGP MESSAGE-----\n\n"; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
392 |
const char suffix[] = "\n-----END PGP MESSAGE-----\n"; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
393 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
394 |
if (!gpg.enabled) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
395 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
396 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
397 |
err = gpgme_new(&ctx); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
398 |
if (err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
399 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
400 |
"GPGME error: %s", gpgme_strerror(err)); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
401 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
402 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
403 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
404 |
gpgme_set_protocol(ctx, GPGME_PROTOCOL_OpenPGP); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
405 |
|
2196
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
406 |
if (gpg.version1) { |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
407 |
// GPG_AGENT_INFO isn't used by GnuPG version 2+ |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
408 |
char *p = getenv("GPG_AGENT_INFO"); |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
409 |
if (!(p && strchr(p, ':'))) |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
410 |
gpgme_set_passphrase_cb(ctx, passphrase_cb, 0); |
8811fe9d6ef0
Improve support for GnuPG v2+
Mikael Berthe <mikael@lilotux.net>
parents:
2195
diff
changeset
|
411 |
} |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
412 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
413 |
// Surround the given data with the prefix & suffix |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
414 |
data = g_new(char, sizeof(prefix) + sizeof(suffix) + strlen(gpg_data)); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
415 |
strcpy(data, prefix); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
416 |
strcat(data, gpg_data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
417 |
strcat(data, suffix); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
418 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
419 |
err = gpgme_data_new_from_mem(&in, data, strlen(data), 0); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
420 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
421 |
err = gpgme_data_new(&out); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
422 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
423 |
err = gpgme_op_decrypt(ctx, in, out); |
2202
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
424 |
if (err) { |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
425 |
gpgme_data_release(out); |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
426 |
} else { |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
427 |
decrypted_data = gpgme_data_release_and_get_mem(out, &nread); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
428 |
if (decrypted_data) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
429 |
// We need to add a trailing NULL |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
430 |
char *dd = g_strndup(decrypted_data, nread); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
431 |
free(decrypted_data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
432 |
decrypted_data = dd; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
433 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
434 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
435 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
436 |
gpgme_data_release(in); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
437 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
438 |
if (err && err != GPG_ERR_CANCELED) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
439 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
1047
0dc104d51dce
PGP: Better error messages
Mikael Berthe <mikael@lilotux.net>
parents:
1041
diff
changeset
|
440 |
"GPGME decryption error: %s", gpgme_strerror(err)); |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
441 |
gpgme_release(ctx); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
442 |
g_free(data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
443 |
return decrypted_data; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
444 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
445 |
|
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
446 |
// gpg_encrypt(gpg_data, keyids[], n) |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
447 |
// Return encrypted gpg_data with the n keys from the keyids array (or NULL). |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
448 |
// The returned string must be freed with g_free() after use. |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
449 |
char *gpg_encrypt(const char *gpg_data, const char *keyids[], size_t nkeys) |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
450 |
{ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
451 |
gpgme_ctx_t ctx; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
452 |
gpgme_data_t in, out; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
453 |
char *encrypted_data = NULL, *edata; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
454 |
size_t nread; |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
455 |
gpgme_key_t *keys; |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
456 |
gpgme_error_t err; |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
457 |
unsigned i; |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
458 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
459 |
if (!gpg.enabled) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
460 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
461 |
|
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
462 |
if (!keyids || !nkeys) { |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
463 |
return NULL; |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
464 |
} |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
465 |
|
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
466 |
err = gpgme_new(&ctx); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
467 |
if (err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
468 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
469 |
"GPGME error: %s", gpgme_strerror(err)); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
470 |
return NULL; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
471 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
472 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
473 |
gpgme_set_protocol(ctx, GPGME_PROTOCOL_OpenPGP); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
474 |
gpgme_set_textmode(ctx, 0); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
475 |
gpgme_set_armor(ctx, 1); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
476 |
|
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
477 |
keys = g_new0(gpgme_key_t, 1+nkeys); |
2195
40ddaebeb81e
PGP: Add a memory allocation check and compilation directives
Mikael Berthe <mikael@lilotux.net>
parents:
2188
diff
changeset
|
478 |
if (!keys) { |
40ddaebeb81e
PGP: Add a memory allocation check and compilation directives
Mikael Berthe <mikael@lilotux.net>
parents:
2188
diff
changeset
|
479 |
gpgme_release(ctx); |
40ddaebeb81e
PGP: Add a memory allocation check and compilation directives
Mikael Berthe <mikael@lilotux.net>
parents:
2188
diff
changeset
|
480 |
return NULL; |
40ddaebeb81e
PGP: Add a memory allocation check and compilation directives
Mikael Berthe <mikael@lilotux.net>
parents:
2188
diff
changeset
|
481 |
} |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
482 |
|
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
483 |
for (i = 0; i < nkeys; i++) { |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
484 |
err = gpgme_get_key(ctx, keyids[i], &keys[i], 0); |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
485 |
if (err || !keys[i]) { |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
486 |
scr_LogPrint(LPRINT_LOGNORM, "GPGME encryption error: cannot use key %s", |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
487 |
keyids[i]); |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
488 |
// We need to have err not null to ensure we won't try to encrypt |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
489 |
// without this key. |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
490 |
if (!err) err = GPG_ERR_UNKNOWN_ERRNO; |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
491 |
break; |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
492 |
} |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
493 |
} |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
494 |
|
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
495 |
if (!err) { |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
496 |
err = gpgme_data_new_from_mem(&in, gpg_data, strlen(gpg_data), 0); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
497 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
498 |
err = gpgme_data_new(&out); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
499 |
if (!err) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
500 |
err = gpgme_op_encrypt(ctx, keys, GPGME_ENCRYPT_ALWAYS_TRUST, in, out); |
2202
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
501 |
if (err) { |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
502 |
gpgme_data_release(out); |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
503 |
} else { |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
504 |
encrypted_data = gpgme_data_release_and_get_mem(out, &nread); |
2202
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
505 |
if (encrypted_data) { |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
506 |
// We need to add a trailing NULL |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
507 |
char *dd = g_strndup(encrypted_data, nread); |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
508 |
free(encrypted_data); |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
509 |
encrypted_data = dd; |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
510 |
} |
ff18feb75a6d
PGP: Add a trailing NULL after a message is PGP-encrypted
Mikael Berthe <mikael@lilotux.net>
parents:
2200
diff
changeset
|
511 |
} |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
512 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
513 |
gpgme_data_release(in); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
514 |
} |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
515 |
|
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
516 |
if (err && err != GPG_ERR_CANCELED) { |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
517 |
scr_LogPrint(LPRINT_LOGNORM|LPRINT_NOTUTF8, |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
518 |
"GPGME encryption error: %s", gpgme_strerror(err)); |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
519 |
} |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
520 |
} |
2187
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
521 |
|
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
522 |
for (i = 0; keys[i]; i++) |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
523 |
gpgme_key_release(keys[i]); |
e3b66c8ead4f
PGP: Change gpg_encrypt() so that several encryption keys can be used
Mikael Berthe <mikael@lilotux.net>
parents:
1811
diff
changeset
|
524 |
g_free(keys); |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
525 |
gpgme_release(ctx); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
526 |
edata = strip_header_footer(encrypted_data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
527 |
if (encrypted_data) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
528 |
free(encrypted_data); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
529 |
return edata; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
530 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
531 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
532 |
// gpg_test_passphrase() |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
533 |
// Test the current gpg.passphrase with gpg.private_key. |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
534 |
// If the test doesn't succeed, the passphrase is cleared and a non-null |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
535 |
// value is returned. |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
536 |
int gpg_test_passphrase(void) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
537 |
{ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
538 |
char *s; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
539 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
540 |
if (!gpg.private_key) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
541 |
return -1; // No private key... |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
542 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
543 |
s = gpg_sign("test"); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
544 |
if (s) { |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
545 |
free(s); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
546 |
return 0; // Ok, test successful |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
547 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
548 |
// The passphrase is wrong (if provided) |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
549 |
gpg_set_passphrase(NULL); |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
550 |
return -1; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
551 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
552 |
|
1413 | 553 |
int gpg_enabled(void) |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
554 |
{ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
555 |
return gpg.enabled; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
556 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
557 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
558 |
#else /* not HAVE_GPGME */ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
559 |
|
1413 | 560 |
int gpg_enabled(void) |
1041
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
561 |
{ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
562 |
return 0; |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
563 |
} |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
564 |
|
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
565 |
#endif /* HAVE_GPGME */ |
d4b97a2423eb
Introduce PGP utility functions
Mikael Berthe <mikael@lilotux.net>
parents:
diff
changeset
|
566 |
|
1811 | 567 |
/* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2: For Vim users... */ |