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| 1 | /*
|
|---|---|
| 2 | * LibSylph -- E-Mail client library |
| 3 | * Copyright (C) 1999-2009 Hiroyuki Yamamoto |
| 4 | * |
| 5 | * This library is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU Lesser General Public |
| 7 | * License as published by the Free Software Foundation; either |
| 8 | * version 2.1 of the License, or (at your option) any later version. |
| 9 | * |
| 10 | * This library 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 GNU |
| 13 | * Lesser General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU Lesser General Public |
| 16 | * License along with this library; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H
|
| 21 | # include "config.h" |
| 22 | #endif
|
| 23 | |
| 24 | #include <glib.h> |
| 25 | #include <glib/gi18n.h> |
| 26 | #include <stdio.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <string.h> |
| 29 | #include <unistd.h> |
| 30 | #include <errno.h> |
| 31 | |
| 32 | #ifdef G_OS_WIN32
|
| 33 | # include <windows.h> |
| 34 | # include <io.h> |
| 35 | #endif
|
| 36 | |
| 37 | #include "prefs.h" |
| 38 | #include "codeconv.h" |
| 39 | #include "utils.h" |
| 40 | |
| 41 | typedef enum |
| 42 | {
|
| 43 | DUMMY_PARAM |
| 44 | } DummyEnum; |
| 45 | |
| 46 | typedef struct _PrefFilePrivate PrefFilePrivate; |
| 47 | |
| 48 | struct _PrefFilePrivate {
|
| 49 | FILE *fp; |
| 50 | gchar *path; |
| 51 | gint backup_generation; |
| 52 | }; |
| 53 | |
| 54 | static void prefs_config_parse_one_line (GHashTable *param_table, |
| 55 | const gchar *buf);
|
| 56 | |
| 57 | GHashTable *prefs_param_table_get(PrefParam *param) |
| 58 | {
|
| 59 | GHashTable *table; |
| 60 | gint i; |
| 61 | |
| 62 | g_return_val_if_fail(param != NULL, NULL); |
| 63 | |
| 64 | table = g_hash_table_new(g_str_hash, g_str_equal); |
| 65 | |
| 66 | for (i = 0; param[i].name != NULL; i++) { |
| 67 | g_hash_table_insert(table, param[i].name, ¶m[i]); |
| 68 | } |
| 69 | |
| 70 | return table;
|
| 71 | } |
| 72 | |
| 73 | void prefs_param_table_destroy(GHashTable *param_table)
|
| 74 | {
|
| 75 | g_hash_table_destroy(param_table); |
| 76 | } |
| 77 | |
| 78 | void prefs_read_config(PrefParam *param, const gchar *label, |
| 79 | const gchar *rcfile, const gchar *encoding) |
| 80 | {
|
| 81 | FILE *fp; |
| 82 | gchar buf[PREFSBUFSIZE]; |
| 83 | gchar *block_label; |
| 84 | GHashTable *param_table; |
| 85 | |
| 86 | g_return_if_fail(param != NULL);
|
| 87 | g_return_if_fail(label != NULL);
|
| 88 | g_return_if_fail(rcfile != NULL);
|
| 89 | |
| 90 | debug_print("Reading configuration...\n");
|
| 91 | |
| 92 | prefs_set_default(param); |
| 93 | |
| 94 | if ((fp = g_fopen(rcfile, "rb")) == NULL) { |
| 95 | if (ENOENT != errno) FILE_OP_ERROR(rcfile, "fopen"); |
| 96 | return;
|
| 97 | } |
| 98 | |
| 99 | block_label = g_strdup_printf("[%s]", label);
|
| 100 | |
| 101 | /* search aiming block */
|
| 102 | while (fgets(buf, sizeof(buf), fp) != NULL) { |
| 103 | gint val; |
| 104 | |
| 105 | if (encoding) {
|
| 106 | gchar *conv_str; |
| 107 | |
| 108 | conv_str = conv_codeset_strdup |
| 109 | (buf, encoding, CS_INTERNAL); |
| 110 | if (!conv_str)
|
| 111 | conv_str = g_strdup(buf); |
| 112 | val = strncmp |
| 113 | (conv_str, block_label, strlen(block_label)); |
| 114 | g_free(conv_str); |
| 115 | } else
|
| 116 | val = strncmp(buf, block_label, strlen(block_label)); |
| 117 | if (val == 0) { |
| 118 | debug_print("Found %s\n", block_label);
|
| 119 | break;
|
| 120 | } |
| 121 | } |
| 122 | g_free(block_label); |
| 123 | |
| 124 | param_table = prefs_param_table_get(param); |
| 125 | |
| 126 | while (fgets(buf, sizeof(buf), fp) != NULL) { |
| 127 | strretchomp(buf); |
| 128 | if (buf[0] == '\0') continue; |
| 129 | /* reached next block */
|
| 130 | if (buf[0] == '[') break; |
| 131 | |
| 132 | if (encoding) {
|
| 133 | gchar *conv_str; |
| 134 | |
| 135 | conv_str = conv_codeset_strdup |
| 136 | (buf, encoding, CS_INTERNAL); |
| 137 | if (!conv_str)
|
| 138 | conv_str = g_strdup(buf); |
| 139 | prefs_config_parse_one_line(param_table, conv_str); |
| 140 | g_free(conv_str); |
| 141 | } else
|
| 142 | prefs_config_parse_one_line(param_table, buf); |
| 143 | } |
| 144 | |
| 145 | prefs_param_table_destroy(param_table); |
| 146 | |
| 147 | debug_print("Finished reading configuration.\n");
|
| 148 | fclose(fp); |
| 149 | } |
| 150 | |
| 151 | static void prefs_config_parse_one_line(GHashTable *param_table, |
| 152 | const gchar *buf)
|
| 153 | {
|
| 154 | PrefParam *param; |
| 155 | const gchar *p = buf;
|
| 156 | gchar *name; |
| 157 | const gchar *value;
|
| 158 | |
| 159 | while (*p && *p != '=') |
| 160 | p++; |
| 161 | |
| 162 | if (*p != '=') { |
| 163 | g_warning("invalid pref line: %s\n", buf);
|
| 164 | return;
|
| 165 | } |
| 166 | |
| 167 | name = g_strndup(buf, p - buf); |
| 168 | value = p + 1;
|
| 169 | |
| 170 | /* debug_print("%s = %s\n", name, value); */
|
| 171 | |
| 172 | param = g_hash_table_lookup(param_table, name); |
| 173 | |
| 174 | if (!param) {
|
| 175 | debug_print("pref key '%s' (value '%s') not found\n",
|
| 176 | name, value); |
| 177 | g_free(name); |
| 178 | return;
|
| 179 | } |
| 180 | |
| 181 | switch (param->type) {
|
| 182 | case P_STRING:
|
| 183 | g_free(*((gchar **)param->data)); |
| 184 | *((gchar **)param->data) = *value ? g_strdup(value) : NULL;
|
| 185 | break;
|
| 186 | case P_INT:
|
| 187 | *((gint *)param->data) = (gint)atoi(value); |
| 188 | break;
|
| 189 | case P_BOOL:
|
| 190 | *((gboolean *)param->data) = |
| 191 | (*value == '0' || *value == '\0') ? FALSE : TRUE; |
| 192 | break;
|
| 193 | case P_ENUM:
|
| 194 | *((DummyEnum *)param->data) = (DummyEnum)atoi(value); |
| 195 | break;
|
| 196 | case P_USHORT:
|
| 197 | *((gushort *)param->data) = (gushort)atoi(value); |
| 198 | break;
|
| 199 | default:
|
| 200 | break;
|
| 201 | } |
| 202 | |
| 203 | g_free(name); |
| 204 | } |
| 205 | |
| 206 | #define TRY(func) \
|
| 207 | if (!(func)) \
|
| 208 | { \
|
| 209 | g_warning(_("failed to write configuration to file\n")); \
|
| 210 | if (orig_fp) fclose(orig_fp); \
|
| 211 | prefs_file_close_revert(pfile); \ |
| 212 | g_free(rcpath); \ |
| 213 | g_free(block_label); \ |
| 214 | return; \
|
| 215 | } \ |
| 216 | |
| 217 | void prefs_write_config(PrefParam *param, const gchar *label, |
| 218 | const gchar *rcfile)
|
| 219 | {
|
| 220 | FILE *orig_fp; |
| 221 | PrefFile *pfile; |
| 222 | gchar *rcpath; |
| 223 | gchar buf[PREFSBUFSIZE]; |
| 224 | gchar *block_label = NULL;
|
| 225 | gboolean block_matched = FALSE; |
| 226 | |
| 227 | g_return_if_fail(param != NULL);
|
| 228 | g_return_if_fail(label != NULL);
|
| 229 | g_return_if_fail(rcfile != NULL);
|
| 230 | |
| 231 | rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
|
| 232 | if ((orig_fp = g_fopen(rcpath, "rb")) == NULL) { |
| 233 | if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen"); |
| 234 | } |
| 235 | |
| 236 | if ((pfile = prefs_file_open(rcpath)) == NULL) { |
| 237 | g_warning(_("failed to write configuration to file\n"));
|
| 238 | if (orig_fp) fclose(orig_fp);
|
| 239 | g_free(rcpath); |
| 240 | return;
|
| 241 | } |
| 242 | |
| 243 | block_label = g_strdup_printf("[%s]", label);
|
| 244 | |
| 245 | /* search aiming block */
|
| 246 | if (orig_fp) {
|
| 247 | while (fgets(buf, sizeof(buf), orig_fp) != NULL) { |
| 248 | gint val; |
| 249 | |
| 250 | val = strncmp(buf, block_label, strlen(block_label)); |
| 251 | if (val == 0) { |
| 252 | debug_print(_("Found %s\n"), block_label);
|
| 253 | block_matched = TRUE; |
| 254 | break;
|
| 255 | } else
|
| 256 | TRY(fputs(buf, pfile->fp) != EOF);
|
| 257 | } |
| 258 | } |
| 259 | |
| 260 | TRY(fprintf(pfile->fp, "%s\n", block_label) > 0); |
| 261 | g_free(block_label); |
| 262 | block_label = NULL;
|
| 263 | |
| 264 | /* write all param data to file */
|
| 265 | TRY(prefs_file_write_param(pfile, param) == 0);
|
| 266 | |
| 267 | if (block_matched) {
|
| 268 | while (fgets(buf, sizeof(buf), orig_fp) != NULL) { |
| 269 | /* next block */
|
| 270 | if (buf[0] == '[') { |
| 271 | TRY(fputc('\n', pfile->fp) != EOF && |
| 272 | fputs(buf, pfile->fp) != EOF);
|
| 273 | break;
|
| 274 | } |
| 275 | } |
| 276 | while (fgets(buf, sizeof(buf), orig_fp) != NULL) |
| 277 | TRY(fputs(buf, pfile->fp) != EOF);
|
| 278 | } |
| 279 | |
| 280 | if (orig_fp) fclose(orig_fp);
|
| 281 | if (prefs_file_close(pfile) < 0) |
| 282 | g_warning(_("failed to write configuration to file\n"));
|
| 283 | g_free(rcpath); |
| 284 | |
| 285 | debug_print(_("Configuration is saved.\n"));
|
| 286 | } |
| 287 | |
| 288 | gint prefs_file_write_param(PrefFile *pfile, PrefParam *param) |
| 289 | {
|
| 290 | gint i; |
| 291 | gchar buf[PREFSBUFSIZE]; |
| 292 | |
| 293 | for (i = 0; param[i].name != NULL; i++) { |
| 294 | switch (param[i].type) {
|
| 295 | case P_STRING:
|
| 296 | g_snprintf(buf, sizeof(buf), "%s=%s\n", param[i].name, |
| 297 | *((gchar **)param[i].data) ? |
| 298 | *((gchar **)param[i].data) : "");
|
| 299 | break;
|
| 300 | case P_INT:
|
| 301 | g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name, |
| 302 | *((gint *)param[i].data)); |
| 303 | break;
|
| 304 | case P_BOOL:
|
| 305 | g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name, |
| 306 | *((gboolean *)param[i].data)); |
| 307 | break;
|
| 308 | case P_ENUM:
|
| 309 | g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name, |
| 310 | *((DummyEnum *)param[i].data)); |
| 311 | break;
|
| 312 | case P_USHORT:
|
| 313 | g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name, |
| 314 | *((gushort *)param[i].data)); |
| 315 | break;
|
| 316 | default:
|
| 317 | buf[0] = '\0'; |
| 318 | } |
| 319 | |
| 320 | if (buf[0] != '\0') { |
| 321 | if (fputs(buf, pfile->fp) == EOF) { |
| 322 | perror("fputs");
|
| 323 | return -1; |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | return 0; |
| 329 | } |
| 330 | |
| 331 | PrefFile *prefs_file_open(const gchar *path)
|
| 332 | {
|
| 333 | PrefFilePrivate *pfile; |
| 334 | gchar *tmppath; |
| 335 | FILE *fp; |
| 336 | |
| 337 | g_return_val_if_fail(path != NULL, NULL); |
| 338 | |
| 339 | tmppath = g_strconcat(path, ".tmp", NULL); |
| 340 | if ((fp = g_fopen(tmppath, "wb")) == NULL) { |
| 341 | FILE_OP_ERROR(tmppath, "fopen");
|
| 342 | g_free(tmppath); |
| 343 | return NULL; |
| 344 | } |
| 345 | |
| 346 | if (change_file_mode_rw(fp, tmppath) < 0) |
| 347 | FILE_OP_ERROR(tmppath, "chmod");
|
| 348 | |
| 349 | g_free(tmppath); |
| 350 | |
| 351 | pfile = g_new(PrefFilePrivate, 1);
|
| 352 | pfile->fp = fp; |
| 353 | pfile->path = g_strdup(path); |
| 354 | pfile->backup_generation = 4;
|
| 355 | |
| 356 | return (PrefFile *)pfile;
|
| 357 | } |
| 358 | |
| 359 | void prefs_file_set_backup_generation(PrefFile *pfile, gint generation)
|
| 360 | {
|
| 361 | PrefFilePrivate *priv = (PrefFilePrivate *)pfile; |
| 362 | |
| 363 | g_return_if_fail(pfile != NULL);
|
| 364 | |
| 365 | priv->backup_generation = generation; |
| 366 | } |
| 367 | |
| 368 | gint prefs_file_get_backup_generation(PrefFile *pfile) |
| 369 | {
|
| 370 | PrefFilePrivate *priv = (PrefFilePrivate *)pfile; |
| 371 | |
| 372 | g_return_val_if_fail(pfile != NULL, -1); |
| 373 | |
| 374 | return priv->backup_generation;
|
| 375 | } |
| 376 | |
| 377 | gint prefs_file_close(PrefFile *pfile) |
| 378 | {
|
| 379 | PrefFilePrivate *priv = (PrefFilePrivate *)pfile; |
| 380 | FILE *fp; |
| 381 | gchar *path; |
| 382 | gchar *tmppath; |
| 383 | gchar *bakpath = NULL;
|
| 384 | gint generation; |
| 385 | gint ret = 0;
|
| 386 | |
| 387 | g_return_val_if_fail(pfile != NULL, -1); |
| 388 | |
| 389 | fp = pfile->fp; |
| 390 | path = pfile->path; |
| 391 | generation = priv->backup_generation; |
| 392 | g_free(pfile); |
| 393 | |
| 394 | tmppath = g_strconcat(path, ".tmp", NULL); |
| 395 | if (fflush(fp) == EOF) { |
| 396 | FILE_OP_ERROR(tmppath, "fflush");
|
| 397 | fclose(fp); |
| 398 | ret = -1;
|
| 399 | goto finish;
|
| 400 | } |
| 401 | #if HAVE_FSYNC
|
| 402 | if (fsync(fileno(fp)) < 0) { |
| 403 | FILE_OP_ERROR(tmppath, "fsync");
|
| 404 | fclose(fp); |
| 405 | ret = -1;
|
| 406 | goto finish;
|
| 407 | } |
| 408 | #elif defined(G_OS_WIN32)
|
| 409 | if (_commit(_fileno(fp)) < 0) { |
| 410 | FILE_OP_ERROR(tmppath, "_commit");
|
| 411 | fclose(fp); |
| 412 | ret = -1;
|
| 413 | goto finish;
|
| 414 | } |
| 415 | #endif
|
| 416 | if (fclose(fp) == EOF) { |
| 417 | FILE_OP_ERROR(tmppath, "fclose");
|
| 418 | ret = -1;
|
| 419 | goto finish;
|
| 420 | } |
| 421 | |
| 422 | if (is_file_exist(path)) {
|
| 423 | bakpath = g_strconcat(path, ".bak", NULL); |
| 424 | if (is_file_exist(bakpath)) {
|
| 425 | gint i; |
| 426 | gchar *bakpath_n, *bakpath_p; |
| 427 | |
| 428 | for (i = generation; i > 0; i--) { |
| 429 | bakpath_n = g_strdup_printf("%s.%d", bakpath,
|
| 430 | i); |
| 431 | if (i == 1) |
| 432 | bakpath_p = g_strdup(bakpath); |
| 433 | else
|
| 434 | bakpath_p = g_strdup_printf |
| 435 | ("%s.%d", bakpath, i - 1); |
| 436 | if (is_file_exist(bakpath_p)) {
|
| 437 | if (rename_force(bakpath_p, bakpath_n) < 0) { |
| 438 | FILE_OP_ERROR(bakpath_p, |
| 439 | "rename");
|
| 440 | } |
| 441 | } |
| 442 | g_free(bakpath_p); |
| 443 | g_free(bakpath_n); |
| 444 | } |
| 445 | } |
| 446 | if (rename_force(path, bakpath) < 0) { |
| 447 | FILE_OP_ERROR(path, "rename");
|
| 448 | ret = -1;
|
| 449 | goto finish;
|
| 450 | } |
| 451 | } |
| 452 | |
| 453 | if (rename_force(tmppath, path) < 0) { |
| 454 | FILE_OP_ERROR(tmppath, "rename");
|
| 455 | ret = -1;
|
| 456 | goto finish;
|
| 457 | } |
| 458 | |
| 459 | finish:
|
| 460 | if (ret < 0) |
| 461 | g_unlink(tmppath); |
| 462 | g_free(path); |
| 463 | g_free(tmppath); |
| 464 | g_free(bakpath); |
| 465 | return ret;
|
| 466 | } |
| 467 | |
| 468 | gint prefs_file_close_revert(PrefFile *pfile) |
| 469 | {
|
| 470 | gchar *tmppath; |
| 471 | |
| 472 | g_return_val_if_fail(pfile != NULL, -1); |
| 473 | |
| 474 | tmppath = g_strconcat(pfile->path, ".tmp", NULL); |
| 475 | fclose(pfile->fp); |
| 476 | if (g_unlink(tmppath) < 0) |
| 477 | FILE_OP_ERROR(tmppath, "unlink");
|
| 478 | g_free(tmppath); |
| 479 | g_free(pfile->path); |
| 480 | g_free(pfile); |
| 481 | |
| 482 | return 0; |
| 483 | } |
| 484 | |
| 485 | void prefs_set_default(PrefParam *param)
|
| 486 | {
|
| 487 | gint i; |
| 488 | |
| 489 | g_return_if_fail(param != NULL);
|
| 490 | |
| 491 | for (i = 0; param[i].name != NULL; i++) { |
| 492 | if (!param[i].data) continue; |
| 493 | |
| 494 | switch (param[i].type) {
|
| 495 | case P_STRING:
|
| 496 | if (param[i].defval != NULL) { |
| 497 | if (!g_ascii_strncasecmp(param[i].defval, "ENV_", 4)) { |
| 498 | const gchar *envstr;
|
| 499 | gchar *tmp = NULL;
|
| 500 | |
| 501 | envstr = g_getenv(param[i].defval + 4);
|
| 502 | #ifdef G_OS_WIN32
|
| 503 | tmp = g_strdup(envstr); |
| 504 | #else
|
| 505 | if (envstr) {
|
| 506 | tmp = conv_codeset_strdup |
| 507 | (envstr, |
| 508 | conv_get_locale_charset_str(), |
| 509 | CS_UTF_8); |
| 510 | if (!tmp) {
|
| 511 | g_warning("failed to convert character set.");
|
| 512 | tmp = g_strdup(envstr); |
| 513 | } |
| 514 | } |
| 515 | #endif
|
| 516 | *((gchar **)param[i].data) = tmp; |
| 517 | } else if (param[i].defval[0] == '~') |
| 518 | *((gchar **)param[i].data) = |
| 519 | #ifdef G_OS_WIN32
|
| 520 | g_strconcat(get_rc_dir(), |
| 521 | #else
|
| 522 | g_strconcat(get_home_dir(), |
| 523 | #endif
|
| 524 | param[i].defval + 1,
|
| 525 | NULL);
|
| 526 | else if (param[i].defval[0] != '\0') |
| 527 | *((gchar **)param[i].data) = |
| 528 | g_strdup(param[i].defval); |
| 529 | else
|
| 530 | *((gchar **)param[i].data) = NULL;
|
| 531 | } else
|
| 532 | *((gchar **)param[i].data) = NULL;
|
| 533 | break;
|
| 534 | case P_INT:
|
| 535 | if (param[i].defval != NULL) |
| 536 | *((gint *)param[i].data) = |
| 537 | (gint)atoi(param[i].defval); |
| 538 | else
|
| 539 | *((gint *)param[i].data) = 0;
|
| 540 | break;
|
| 541 | case P_BOOL:
|
| 542 | if (param[i].defval != NULL) { |
| 543 | if (!g_ascii_strcasecmp(param[i].defval, "TRUE")) |
| 544 | *((gboolean *)param[i].data) = TRUE; |
| 545 | else
|
| 546 | *((gboolean *)param[i].data) = |
| 547 | atoi(param[i].defval) ? TRUE : FALSE; |
| 548 | } else
|
| 549 | *((gboolean *)param[i].data) = FALSE; |
| 550 | break;
|
| 551 | case P_ENUM:
|
| 552 | if (param[i].defval != NULL) |
| 553 | *((DummyEnum*)param[i].data) = |
| 554 | (DummyEnum)atoi(param[i].defval); |
| 555 | else
|
| 556 | *((DummyEnum *)param[i].data) = 0;
|
| 557 | break;
|
| 558 | case P_USHORT:
|
| 559 | if (param[i].defval != NULL) |
| 560 | *((gushort *)param[i].data) = |
| 561 | (gushort)atoi(param[i].defval); |
| 562 | else
|
| 563 | *((gushort *)param[i].data) = 0;
|
| 564 | break;
|
| 565 | default:
|
| 566 | break;
|
| 567 | } |
| 568 | } |
| 569 | } |
| 570 | |
| 571 | void prefs_free(PrefParam *param)
|
| 572 | {
|
| 573 | gint i; |
| 574 | |
| 575 | g_return_if_fail(param != NULL);
|
| 576 | |
| 577 | for (i = 0; param[i].name != NULL; i++) { |
| 578 | if (!param[i].data) continue; |
| 579 | |
| 580 | switch (param[i].type) {
|
| 581 | case P_STRING:
|
| 582 | g_free(*((gchar **)param[i].data)); |
| 583 | break;
|
| 584 | default:
|
| 585 | break;
|
| 586 | } |
| 587 | } |
| 588 | } |