2 * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
3 * Copyright (C) 2016 The Claws Mail Team
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include "claws-features.h"
25 #ifdef PASSWORD_CRYPTO_GNUTLS
26 # include <gnutls/gnutls.h>
27 # include <gnutls/crypto.h>
31 #include <glib/gi18n.h>
33 #include "common/defs.h"
34 #include "common/utils.h"
35 #include "passwordstore.h"
37 #include "prefs_gtk.h"
39 static GSList *_password_store;
41 /* Finds password block of given type and name in the pwdstore. */
42 static PasswordBlock *_get_block(PasswordBlockType block_type,
43 const gchar *block_name)
48 g_return_val_if_fail(block_type >= 0 && block_type < NUM_PWS_TYPES,
50 g_return_val_if_fail(block_name != NULL, NULL);
52 for (item = _password_store; item != NULL; item = item->next) {
53 block = (PasswordBlock *)item->data;
54 if (block->block_type == block_type &&
55 !strcmp(block->block_name, block_name))
62 static gboolean _hash_equal_func(gconstpointer a, gconstpointer b)
64 if (g_strcmp0((const gchar *)a, (const gchar *)b) == 0)
69 /* Creates a new, empty block and adds it to the pwdstore. */
70 static PasswordBlock *_new_block(PasswordBlockType block_type,
71 const gchar *block_name)
75 g_return_val_if_fail(block_type >= 0 && block_type < NUM_PWS_TYPES,
77 g_return_val_if_fail(block_name != NULL, NULL);
79 /* First check to see if the block doesn't already exist. */
80 if (_get_block(block_type, block_name)) {
81 debug_print("Block (%d/%s) already exists.\n",
82 block_type, block_name);
86 /* Let's create an empty block, and add it to pwdstore. */
87 block = g_new0(PasswordBlock, 1);
88 block->block_type = block_type;
89 block->block_name = g_strdup(block_name);
90 block->entries = g_hash_table_new_full(g_str_hash,
91 (GEqualFunc)_hash_equal_func,
93 debug_print("Created password block (%d/%s)\n",
94 block_type, block_name);
96 _password_store = g_slist_append(_password_store, block);
101 ///////////////////////////////////////////////////////////////
103 /* Stores a password. */
104 gboolean passwd_store_set(PasswordBlockType block_type,
105 const gchar *block_name,
106 const gchar *password_id,
107 const gchar *password,
110 const gchar *p = password;
111 PasswordBlock *block;
112 gchar *encrypted_password;
114 g_return_val_if_fail(block_type >= 0 && block_type < NUM_PWS_TYPES,
116 g_return_val_if_fail(block_name != NULL, FALSE);
117 g_return_val_if_fail(password_id != NULL, FALSE);
119 /* Empty password string equals null password for us. */
120 if (strlen(password) == 0)
123 debug_print("%s password '%s' in block (%d/%s)%s\n",
124 (p == NULL ? "Deleting" : "Storing"),
125 password_id, block_type, block_name,
126 (encrypted ? ", already encrypted" : "") );
128 // find correct block (create if needed)
129 if ((block = _get_block(block_type, block_name)) == NULL) {
130 /* If caller wants to delete a password, and even its block
131 * doesn't exist, we're done. */
135 if ((block = _new_block(block_type, block_name)) == NULL) {
136 debug_print("Could not create password block (%d/%s)\n",
137 block_type, block_name);
143 /* NULL password was passed to us, so delete the entry with
144 * corresponding id */
145 g_hash_table_remove(block->entries, password_id);
148 /* encrypt password before saving it */
149 if ((encrypted_password =
150 password_encrypt(p, NULL)) == NULL) {
151 debug_print("Could not encrypt password '%s' for block (%d/%s).\n",
152 password_id, block_type, block_name);
156 /* password is already in encrypted form already */
157 encrypted_password = g_strdup(p);
160 // add encrypted password to the block
161 g_hash_table_insert(block->entries,
162 g_strdup(password_id),
169 /* Retrieves a password. */
170 gchar *passwd_store_get(PasswordBlockType block_type,
171 const gchar *block_name,
172 const gchar *password_id)
174 PasswordBlock *block;
175 gchar *encrypted_password, *password;
177 g_return_val_if_fail(block_type >= 0 && block_type < NUM_PWS_TYPES,
179 g_return_val_if_fail(block_name != NULL, NULL);
180 g_return_val_if_fail(password_id != NULL, NULL);
182 debug_print("Getting password '%s' from block (%d/%s)\n",
183 password_id, block_type, block_name);
185 // find correct block
186 if ((block = _get_block(block_type, block_name)) == NULL) {
187 debug_print("Block (%d/%s) not found.\n", block_type, block_name);
191 // grab pointer to encrypted password
192 if ((encrypted_password =
193 g_hash_table_lookup(block->entries, password_id)) == NULL) {
194 debug_print("Password '%s' in block (%d/%s) not found.\n",
195 password_id, block_type, block_name);
201 password_decrypt(encrypted_password, NULL)) == NULL) {
202 debug_print("Could not decrypt password '%s' for block (%d/%s).\n",
203 password_id, block_type, block_name);
207 // return decrypted password
211 gboolean passwd_store_set_account(gint account_id,
212 const gchar *password_id,
213 const gchar *password,
216 gchar *uid = g_strdup_printf("%d", account_id);
217 gboolean ret = passwd_store_set(PWS_ACCOUNT, uid,
218 password_id, password, encrypted);
223 gchar *passwd_store_get_account(gint account_id,
224 const gchar *password_id)
226 gchar *uid = g_strdup_printf("%d", account_id);
227 gchar *ret = passwd_store_get(PWS_ACCOUNT, uid, password_id);
232 /* Reencrypts all stored passwords. */
233 void passwd_store_reencrypt_all(const gchar *old_mpwd,
234 const gchar *new_mpwd)
236 PasswordBlock *block;
239 gchar *encrypted_password, *decrypted_password, *key;
241 g_return_if_fail(old_mpwd != NULL);
242 g_return_if_fail(new_mpwd != NULL);
244 for (item = _password_store; item != NULL; item = item->next) {
245 block = (PasswordBlock *)item->data;
247 continue; /* Just in case. */
249 debug_print("Reencrypting passwords in block (%d/%s).\n",
250 block->block_type, block->block_name);
252 if (g_hash_table_size(block->entries) == 0)
255 keys = g_hash_table_get_keys(block->entries);
256 for (eitem = keys; eitem != NULL; eitem = eitem->next) {
257 key = (gchar *)eitem->data;
258 if ((encrypted_password =
259 g_hash_table_lookup(block->entries, key)) == NULL)
262 if ((decrypted_password =
263 password_decrypt(encrypted_password, old_mpwd)) == NULL) {
264 debug_print("Reencrypt: couldn't decrypt password for '%s'.\n", key);
268 encrypted_password = password_encrypt(decrypted_password, new_mpwd);
269 memset(decrypted_password, 0, strlen(decrypted_password));
270 g_free(decrypted_password);
271 if (encrypted_password == NULL) {
272 debug_print("Reencrypt: couldn't encrypt password for '%s'.\n", key);
276 g_hash_table_insert(block->entries, g_strdup(key), encrypted_password);
282 debug_print("Reencrypting done.\n");
285 static gint _write_to_file(FILE *fp)
287 PasswordBlock *block;
290 gchar *typestr, *line, *key, *pwd;
292 for (item = _password_store; item != NULL; item = item->next) {
293 block = (PasswordBlock*)item->data;
295 continue; /* Just in case. */
297 /* Do not save empty blocks. */
298 if (g_hash_table_size(block->entries) == 0)
301 /* Prepare the section header string and write it out. */
303 if (block->block_type == PWS_CORE) {
305 } else if (block->block_type == PWS_ACCOUNT) {
307 } else if (block->block_type == PWS_PLUGIN) {
310 line = g_strdup_printf("[%s:%s]\n", typestr, block->block_name);
312 if (fputs(line, fp) == EOF) {
313 FILE_OP_ERROR("password store", "fputs");
319 /* Now go through all passwords in the block and write each out. */
320 keys = g_hash_table_get_keys(block->entries);
321 for (eitem = keys; eitem != NULL; eitem = eitem->next) {
322 key = (gchar *)eitem->data;
323 if ((pwd = g_hash_table_lookup(block->entries, key)) == NULL)
326 line = g_strdup_printf("%s %s\n", key, pwd);
327 if (fputs(line, fp) == EOF) {
328 FILE_OP_ERROR("password store", "fputs");
336 if (item->next != NULL && fputs("\n", fp) == EOF) {
337 FILE_OP_ERROR("password store", "fputs");
346 void passwd_store_write_config(void)
351 debug_print("Writing password store...\n");
353 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
354 PASSWORD_STORE_RC, NULL);
356 if ((pfile = prefs_write_open(rcpath)) == NULL) {
357 g_warning("failed to open password store file for writing");
364 if (_write_to_file(pfile->fp) < 0) {
365 g_warning("failed to write password store to file");
366 prefs_file_close_revert(pfile);
367 } else if (prefs_file_close(pfile) < 0) {
368 g_warning("failed to properly close password store file after writing");
372 void passwd_store_read_config(void)
374 gchar *rcpath, *contents, **lines, **line, *typestr, *name;
375 GError *error = NULL;
377 PasswordBlock *block = NULL;
378 PasswordBlockType type;
380 // TODO: passwd_store_clear();
382 debug_print("Reading password store from file...\n");
384 rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
385 PASSWORD_STORE_RC, NULL);
387 if (!g_file_get_contents(rcpath, &contents, NULL, &error)) {
388 g_warning("couldn't read password store from file: %s\n", error->message);
395 lines = g_strsplit(contents, "\n", -1);
397 while (lines[i] != NULL) {
398 if (*lines[i] == '[') {
399 /* Beginning of a new block */
400 line = g_strsplit_set(lines[i], "[:]", -1);
401 if (line[0] != NULL && strlen(line[0]) == 0
402 && line[1] != NULL && strlen(line[1]) > 0
403 && line[2] != NULL && strlen(line[2]) > 0
404 && line[3] != NULL && strlen(line[3]) == 0) {
407 if (!strcmp(typestr, "core")) {
409 } else if (!strcmp(typestr, "account")) {
411 } else if (!strcmp(typestr, "plugin")) {
414 debug_print("Uknown password block type: '%s'\n", typestr);
419 if ((block = _new_block(type, name)) == NULL) {
420 debug_print("Duplicate password block, ignoring: (%d/%s)\n",
427 } else if (strlen(lines[i]) > 0 && block != NULL) {
428 /* If we have started a password block, test for a
429 * "password_id = password" line. */
430 line = g_strsplit(lines[i], " ", -1);
431 if (line[0] != NULL && strlen(line[0]) > 0
432 && line[1] != NULL && strlen(line[1]) > 0
433 && line[2] == NULL) {
434 debug_print("Adding password '%s'\n", line[0]);
435 g_hash_table_insert(block->entries,
436 g_strdup(line[0]), g_strdup(line[1]));