src/prefs_gtk.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2015 Hiroyuki Yamamoto and the Claws Mail team
   4  *
   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.
   9  *
  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.
  14  *
  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/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #define _GNU_SOURCE
  26 #include <stdio.h>
  27
  28 #include <glib.h>
  29 #include <glib/gi18n.h>
  30 #include <gtk/gtk.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33 #include <unistd.h>
  34 #include <errno.h>
  35
  36 #include "defs.h"
  37 #include "main.h"
  38 #include "prefs.h"
  39 #include "prefs_gtk.h"
  40 #include "prefs_common.h"
  41 #include "utils.h"
  42 #include "gtkutils.h"
  43 #include "password.h"
  44 #include "codeconv.h"
  45
  46 #define CL(x)   (((gulong) (x) >> (gulong) 8) & 0xFFUL)
  47 #define RGB_FROM_GDK_COLOR(c) \
  48         ((CL(c.red)   << (gulong) 16) | \
  49          (CL(c.green) << (gulong)  8) | \
  50          (CL(c.blue)))
  51
  52 #ifdef HAVE_FGETS_UNLOCKED
  53 #define SC_FGETS fgets_unlocked
  54 #else
  55 #define SC_FGETS fgets
  56 #endif
  57
  58 typedef enum
  59 {
  60         DUMMY_PARAM
  61 } DummyEnum;
  62
  63 static GHashTable *whole_cache = NULL;
  64
  65 static gboolean prefs_read_config_from_cache(PrefParam *param, const gchar *label,
  66                                const gchar *rcfile);
  67
  68 static void prefs_config_parse_one_line(PrefParam       *param,
  69                                          const gchar    *buf);
  70
  71 void prefs_read_config(PrefParam *param, const gchar *label,
  72                        const gchar *rcfile, const gchar *encoding)
  73 {
  74         FILE *fp;
  75         gchar buf[PREFSBUFSIZE];
  76         gchar *block_label;
  77
  78         cm_return_if_fail(param != NULL);
  79         cm_return_if_fail(label != NULL);
  80         cm_return_if_fail(rcfile != NULL);
  81
  82         if (encoding != NULL)
  83                 g_warning("Encoding is ignored");
  84
  85         debug_print("Reading configuration...\n");
  86
  87         prefs_set_default(param);
  88
  89         if (whole_cache != NULL) {
  90                 if (prefs_read_config_from_cache(param, label, rcfile) == TRUE)
  91                         return;
  92         }
  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 #ifdef HAVE_FGETS_UNLOCKED
 102         flockfile(fp);
 103 #endif
 104
 105         /* search aiming block */
 106         while (SC_FGETS(buf, sizeof(buf), fp) != NULL) {
 107                 gint val;
 108
 109                 if (encoding) {
 110                         gchar *conv_str;
 111
 112                         conv_str = conv_codeset_strdup
 113                                 (buf, encoding, CS_INTERNAL);
 114                         if (!conv_str)
 115                                 conv_str = g_strdup(buf);
 116                         val = strncmp
 117                                 (conv_str, block_label, strlen(block_label));
 118                         g_free(conv_str);
 119                 } else
 120                         val = strncmp(buf, block_label, strlen(block_label));
 121                 if (val == 0) {
 122                         debug_print("Found %s\n", block_label);
 123                         break;
 124                 }
 125         }
 126         g_free(block_label);
 127
 128         while (SC_FGETS(buf, sizeof(buf), fp) != NULL) {
 129                 strretchomp(buf);
 130                 /* reached next block */
 131                 if (buf[0] == '[') break;
 132                 if (buf[0] == '#') continue;
 133
 134                 if (encoding) {
 135                         gchar *conv_str;
 136
 137                         conv_str = conv_codeset_strdup
 138                                 (buf, encoding, CS_INTERNAL);
 139                         if (!conv_str)
 140                                 conv_str = g_strdup(buf);
 141                         prefs_config_parse_one_line(param, conv_str);
 142                         g_free(conv_str);
 143                 } else
 144                         prefs_config_parse_one_line(param, buf);
 145         }
 146
 147         debug_print("Finished reading configuration.\n");
 148 #ifdef HAVE_FGETS_UNLOCKED
 149         funlockfile(fp);
 150 #endif
 151         fclose(fp);
 152 }
 153
 154 static void prefs_config_parse_one_line(PrefParam *param, const gchar *buf)
 155 {
 156         gint i;
 157         gint name_len;
 158         const gchar *value;
 159         GdkColor color;
 160
 161         for (i = 0; param[i].name != NULL; i++) {
 162                 name_len = strlen(param[i].name);
 163                 if (g_ascii_strncasecmp(buf, param[i].name, name_len))
 164                         continue;
 165                 if (buf[name_len] != '=')
 166                         continue;
 167                 value = buf + name_len + 1;
 168                 /* debug_print("%s = %s\n", param[i].name, value); */
 169
 170                 switch (param[i].type) {
 171                 case P_STRING:
 172                 case P_PASSWORD:
 173                 {
 174                         gchar *tmp = NULL;
 175
 176                         if (*value) {
 177                                 if (g_utf8_validate(value, -1, NULL))
 178                                         tmp = g_strdup(value);
 179                                 else {
 180                                         tmp = conv_codeset_strdup(value,
 181                                                     conv_get_locale_charset_str_no_utf8(),
 182                                                     CS_INTERNAL);
 183                                 }
 184                         } else {
 185                                 tmp = g_strdup("");
 186                         }
 187                         if (!tmp) {
 188                                 g_warning("Failed to convert character set.");
 189                                 tmp = g_strdup(value);
 190                         }
 191                         g_free(*((gchar **)param[i].data));
 192                         *((gchar **)param[i].data) = tmp;
 193                         break;
 194                 }
 195                 case P_INT:
 196                         *((gint *)param[i].data) =
 197                                 (gint)atoi(value);
 198                         break;
 199                 case P_BOOL:
 200                         *((gboolean *)param[i].data) =
 201                                 (*value == '0' || *value == '\0')
 202                                         ? FALSE : TRUE;
 203                         break;
 204                 case P_ENUM:
 205                         *((DummyEnum *)param[i].data) =
 206                                 (DummyEnum)atoi(value);
 207                         break;
 208                 case P_USHORT:
 209                         *((gushort *)param[i].data) =
 210                                 (gushort)atoi(value);
 211                         break;
 212                 case P_COLOR:
 213                         if (gdk_color_parse(value, &color)) {
 214                                 *((gulong *)param[i].data) = RGB_FROM_GDK_COLOR(color);
 215                         }
 216                         else
 217                                 /* be compatible and accept ints */
 218                                 *((gulong *)param[i].data) = strtoul(value, 0, 10);
 219                         break;
 220                 default:
 221                         break;
 222                 }
 223         }
 224 }
 225
 226 #define TRY(func) \
 227 if (!(func)) \
 228 { \
 229         g_warning("Failed to write configuration to file"); \
 230         if (orig_fp) fclose(orig_fp); \
 231         prefs_file_close_revert(pfile); \
 232         g_free(rcpath); \
 233         g_free(block_label); \
 234         return; \
 235 } \
 236
 237 void prefs_write_config(PrefParam *param, const gchar *label,
 238                         const gchar *rcfile)
 239 {
 240         FILE *orig_fp;
 241         PrefFile *pfile;
 242         gchar *rcpath;
 243         gchar buf[PREFSBUFSIZE];
 244         gchar *block_label = NULL;
 245         gboolean block_matched = FALSE;
 246
 247         cm_return_if_fail(param != NULL);
 248         cm_return_if_fail(label != NULL);
 249         cm_return_if_fail(rcfile != NULL);
 250
 251         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, rcfile, NULL);
 252         if ((orig_fp = g_fopen(rcpath, "rb")) == NULL) {
 253                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
 254         }
 255
 256         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 257                 g_warning("Failed to write configuration to file");
 258                 if (orig_fp) fclose(orig_fp);
 259                 g_free(rcpath);
 260                 return;
 261         }
 262
 263         block_label = g_strdup_printf("[%s]", label);
 264
 265         /* search aiming block */
 266         if (orig_fp) {
 267                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 268                         gint val;
 269
 270                         val = strncmp(buf, block_label, strlen(block_label));
 271                         if (val == 0) {
 272                                 debug_print("Found %s\n", block_label);
 273                                 block_matched = TRUE;
 274                                 break;
 275                         } else
 276                                 TRY(fputs(buf, pfile->fp) != EOF);
 277                 }
 278         }
 279
 280         TRY(fprintf(pfile->fp, "%s\n", block_label) > 0);
 281
 282         /* write all param data to file */
 283         TRY(prefs_write_param(param, pfile->fp) == 0);
 284
 285         if (block_matched) {
 286                 gboolean in_dup_block = FALSE;
 287                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 288                         /* next block */
 289                         if (buf[0] == '[') {
 290                                 TRY(fputc('\n', pfile->fp) != EOF &&
 291                                     fputs(buf, pfile->fp)  != EOF);
 292                                 break;
 293                         }
 294                 }
 295                 while (fgets(buf, sizeof(buf), orig_fp) != NULL) {
 296                         if (buf[0] == '[') {
 297                                 if (!strncmp(buf, block_label,
 298                                                 strlen(block_label)))
 299                                         in_dup_block = TRUE;
 300                                 else
 301                                         in_dup_block = FALSE;
 302                         }
 303                         if (!in_dup_block)
 304                                 TRY(fputs(buf, pfile->fp) != EOF);
 305                 }
 306         }
 307
 308         g_free(block_label);
 309         block_label = NULL;
 310
 311         if (orig_fp) fclose(orig_fp);
 312         if (prefs_file_close(pfile) < 0)
 313                 g_warning("Failed to write configuration to file");
 314         g_free(rcpath);
 315
 316         debug_print("Configuration is saved.\n");
 317 }
 318
 319 gint prefs_write_param(PrefParam *param, FILE *fp)
 320 {
 321         gint i;
 322         gchar buf[PREFSBUFSIZE] = "";
 323
 324         for (i = 0; param[i].name != NULL; i++) {
 325                 switch (param[i].type) {
 326                 case P_STRING:
 327                 {
 328                         gchar *tmp = NULL;
 329
 330                         if (*((gchar **)param[i].data)) {
 331                                 if (g_utf8_validate(*((gchar **)param[i].data), -1, NULL))
 332                                         tmp = g_strdup(*((gchar **)param[i].data));
 333                                 else {
 334                                         tmp = conv_codeset_strdup(*((gchar **)param[i].data),
 335                                                 conv_get_locale_charset_str_no_utf8(),
 336                                                 CS_INTERNAL);
 337                                         if (!tmp)
 338                                                 tmp = g_strdup(*((gchar **)param[i].data));
 339                                 }
 340                         }
 341
 342                         g_snprintf(buf, sizeof(buf), "%s=%s\n", param[i].name,
 343                                    tmp ? tmp : "");
 344
 345                         g_free(tmp);
 346                         break;
 347                 }
 348                 case P_PASSWORD:
 349                         buf[0] = '\0'; /* Passwords are written to password store. */
 350                         break;
 351                 case P_INT:
 352                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 353                                    *((gint *)param[i].data));
 354                         break;
 355                 case P_BOOL:
 356                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 357                                    *((gboolean *)param[i].data));
 358                         break;
 359                 case P_ENUM:
 360                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 361                                    *((DummyEnum *)param[i].data));
 362                         break;
 363                 case P_USHORT:
 364                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
 365                                    *((gushort *)param[i].data));
 366                         break;
 367                 case P_COLOR:
 368                         g_snprintf(buf, sizeof buf,  "%s=#%6.6lx\n", param[i].name,
 369                                    *((gulong *) param[i].data));
 370                         break;
 371                 default:
 372                         /* unrecognized, fail */
 373                         debug_print("Unrecognized parameter type\n");
 374                         return -1;
 375                 }
 376
 377                 if (buf[0] != '\0') {
 378                         if (fputs(buf, fp) == EOF) {
 379                                 perror("fputs");
 380                                 return -1;
 381                         }
 382                 }
 383         }
 384
 385         return 0;
 386 }
 387
 388 void prefs_set_default(PrefParam *param)
 389 {
 390         gint i;
 391         GdkColor color;
 392
 393         cm_return_if_fail(param != NULL);
 394
 395         for (i = 0; param[i].name != NULL; i++) {
 396                 if (!param[i].data) continue;
 397
 398                 switch (param[i].type) {
 399                 case P_STRING:
 400                         g_free(*((gchar **)param[i].data));
 401                         if (param[i].defval != NULL) {
 402                                 if (!strncasecmp(param[i].defval, "ENV_", 4)) {
 403                                         const gchar *envstr;
 404                                         gchar *tmp;
 405
 406                                         envstr = g_getenv(param[i].defval + 4);
 407                                         tmp = envstr && *envstr ?
 408                                                 conv_codeset_strdup(envstr,
 409                                                                     conv_get_locale_charset_str(),
 410                                                                     CS_INTERNAL)
 411                                                 : g_strdup("");
 412                                         if (!tmp) {
 413                                                 g_warning("Failed to convert character set.");
 414                                                 tmp = g_strdup(envstr);
 415                                         }
 416                                         *((gchar **)param[i].data) = tmp;
 417                                 } else if (param[i].defval[0] == '~')
 418                                         *((gchar **)param[i].data) =
 419                                                 g_strconcat(get_home_dir(),
 420                                                             param[i].defval + 1,
 421                                                             NULL);
 422                                 else
 423                                         *((gchar **)param[i].data) =
 424                                                 g_strdup(param[i].defval);
 425                         } else
 426                                 *((gchar **)param[i].data) = NULL;
 427                         break;
 428                 case P_PASSWORD:
 429                         g_free(*((gchar **)param[i].data));
 430                         if (param[i].defval != NULL) {
 431                                 if (param[i].defval[0] != '\0')
 432                                         *((gchar **)param[i].data) =
 433                                                 g_strdup(param[i].defval);
 434                                 else
 435                                         *((gchar **)param[i].data) = NULL;
 436                         } else
 437                                 *((gchar **)param[i].data) = NULL;
 438                         break;
 439                 case P_INT:
 440                         if (param[i].defval != NULL)
 441                                 *((gint *)param[i].data) =
 442                                         (gint)atoi(param[i].defval);
 443                         else if (!strcmp(param[i].name, "config_version"))
 444                                 *((gint *)param[i].data) = CLAWS_CONFIG_VERSION;
 445                         else
 446                                 *((gint *)param[i].data) = 0;
 447                         break;
 448                 case P_BOOL:
 449                         if (param[i].defval != NULL) {
 450                                 if (!g_ascii_strcasecmp(param[i].defval, "TRUE"))
 451                                         *((gboolean *)param[i].data) = TRUE;
 452                                 else
 453                                         *((gboolean *)param[i].data) = atoi(param[i].defval) ? TRUE : FALSE;
 454                         } else
 455                                 *((gboolean *)param[i].data) = FALSE;
 456                         break;
 457                 case P_ENUM:
 458                         if (param[i].defval != NULL)
 459                                 *((DummyEnum*)param[i].data) =
 460                                         (DummyEnum)atoi(param[i].defval);
 461                         else
 462                                 *((DummyEnum *)param[i].data) = 0;
 463                         break;
 464                 case P_USHORT:
 465                         if (param[i].defval != NULL)
 466                                 *((gushort *)param[i].data) = (gushort)atoi(param[i].defval);
 467                         else
 468                                 *((gushort *)param[i].data) = 0;
 469                         break;
 470                 case P_COLOR:
 471                         if (param[i].defval != NULL && gdk_color_parse(param[i].defval, &color))
 472                                 *((gulong *)param[i].data) = RGB_FROM_GDK_COLOR(color);
 473                         else if (param[i].defval)
 474                                 /* be compatible and accept ints */
 475                                 *((gulong *)param[i].data) = strtoul(param[i].defval, 0, 10);
 476                         else
 477                                 *((gulong *)param[i].data) = 0;
 478                         break;
 479                 default:
 480                         break;
 481                 }
 482         }
 483 }
 484
 485 void prefs_free(PrefParam *param)
 486 {
 487         gint i;
 488
 489         cm_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                 case P_PASSWORD:
 497                         g_free(*((gchar **)param[i].data));
 498                         break;
 499                 default:
 500                         break;
 501                 }
 502         }
 503 }
 504
 505 void prefs_button_toggled(GtkToggleButton *toggle_btn, GtkWidget *widget)
 506 {
 507         gboolean is_active;
 508
 509         is_active = gtk_toggle_button_get_active(toggle_btn);
 510         gtk_widget_set_sensitive(widget, is_active);
 511 }
 512
 513 void prefs_button_toggled_reverse(GtkToggleButton *toggle_btn, GtkWidget *widget)
 514 {
 515         gboolean is_active;
 516
 517         is_active = gtk_toggle_button_get_active(toggle_btn);
 518         gtk_widget_set_sensitive(widget, !is_active);
 519 }
 520
 521 void prefs_set_dialog(PrefParam *param)
 522 {
 523         gint i;
 524
 525         for (i = 0; param[i].name != NULL; i++) {
 526                 if (param[i].widget_set_func)
 527                         param[i].widget_set_func(&param[i]);
 528         }
 529 }
 530
 531 void prefs_set_data_from_dialog(PrefParam *param)
 532 {
 533         gint i;
 534
 535         for (i = 0; param[i].name != NULL; i++) {
 536                 if (param[i].data_set_func)
 537                         param[i].data_set_func(&param[i]);
 538         }
 539 }
 540
 541 void prefs_set_dialog_to_default(PrefParam *param)
 542 {
 543         gint       i;
 544         PrefParam  tmpparam;
 545         gchar     *str_data = NULL;
 546         gint       int_data;
 547         gushort    ushort_data;
 548         gboolean   bool_data;
 549         DummyEnum  enum_data;
 550
 551         for (i = 0; param[i].name != NULL; i++) {
 552                 if (!param[i].widget_set_func) continue;
 553
 554                 tmpparam = param[i];
 555
 556                 switch (tmpparam.type) {
 557                 case P_STRING:
 558                         if (tmpparam.defval) {
 559                                 if (!g_ascii_strncasecmp(tmpparam.defval, "ENV_", 4)) {
 560                                         str_data = g_strdup(g_getenv(param[i].defval + 4));
 561                                         tmpparam.data = &str_data;
 562                                         break;
 563                                 } else if (tmpparam.defval[0] == '~') {
 564                                         str_data =
 565                                                 g_strconcat(get_home_dir(),
 566                                                             param[i].defval + 1,
 567                                                             NULL);
 568                                         tmpparam.data = &str_data;
 569                                         break;
 570                                 }
 571                         }
 572                         tmpparam.data = &tmpparam.defval;
 573                         break;
 574                 case P_PASSWORD:
 575                         tmpparam.data = &tmpparam.defval;
 576                         break;
 577                 case P_INT:
 578                         if (tmpparam.defval)
 579                                 int_data = atoi(tmpparam.defval);
 580                         else
 581                                 int_data = 0;
 582                         tmpparam.data = &int_data;
 583                         break;
 584                 case P_USHORT:
 585                         if (tmpparam.defval)
 586                                 ushort_data = atoi(tmpparam.defval);
 587                         else
 588                                 ushort_data = 0;
 589                         tmpparam.data = &ushort_data;
 590                         break;
 591                 case P_BOOL:
 592                         if (tmpparam.defval) {
 593                                 if (!g_ascii_strcasecmp(tmpparam.defval, "TRUE"))
 594                                         bool_data = TRUE;
 595                                 else
 596                                         bool_data = atoi(tmpparam.defval)
 597                                                 ? TRUE : FALSE;
 598                         } else
 599                                 bool_data = FALSE;
 600                         tmpparam.data = &bool_data;
 601                         break;
 602                 case P_ENUM:
 603                         if (tmpparam.defval)
 604                                 enum_data = (DummyEnum)atoi(tmpparam.defval);
 605                         else
 606                                 enum_data = 0;
 607                         tmpparam.data = &enum_data;
 608                         break;
 609                 case P_OTHER:
 610                 default:
 611                         break;
 612                 }
 613                 tmpparam.widget_set_func(&tmpparam);
 614                 g_free(str_data);
 615                 str_data = NULL;
 616         }
 617 }
 618
 619 void prefs_set_data_from_entry(PrefParam *pparam)
 620 {
 621         gchar **str;
 622         const gchar *entry_str;
 623
 624         cm_return_if_fail(*pparam->widget != NULL);
 625
 626         entry_str = gtk_entry_get_text(GTK_ENTRY(*pparam->widget));
 627
 628         switch (pparam->type) {
 629         case P_STRING:
 630                 str = (gchar **)pparam->data;
 631                 g_free(*str);
 632                 *str = entry_str[0] ? g_strdup(entry_str) : NULL;
 633                 break;
 634         case P_PASSWORD:
 635                 break;
 636         case P_USHORT:
 637                 *((gushort *)pparam->data) = atoi(entry_str);
 638                 break;
 639         case P_INT:
 640                 *((gint *)pparam->data) = atoi(entry_str);
 641                 break;
 642         default:
 643                 g_warning("Invalid PrefType for GtkEntry widget: %d",
 644                           pparam->type);
 645         }
 646 }
 647
 648 void prefs_set_escaped_data_from_entry(PrefParam *pparam)
 649 {
 650         gchar **str;
 651
 652         cm_return_if_fail(*pparam->widget != NULL);
 653
 654         switch (pparam->type) {
 655         case P_STRING:
 656                 str = (gchar **)pparam->data;
 657                 g_free(*str);
 658                 *str = pref_get_pref_from_entry(GTK_ENTRY(*pparam->widget));
 659                 break;
 660         default:
 661                 g_warning("Invalid escaped PrefType for GtkEntry widget: %d",
 662                           pparam->type);
 663         }
 664 }
 665
 666 void prefs_set_entry(PrefParam *pparam)
 667 {
 668         gchar **str;
 669         cm_return_if_fail(*pparam->widget != NULL);
 670
 671         switch (pparam->type) {
 672         case P_STRING:
 673                 str = (gchar **)pparam->data;
 674                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 675                                    *str ? *str : "");
 676                 break;
 677         case P_INT:
 678                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 679                                    itos(*((gint *)pparam->data)));
 680                 break;
 681         case P_USHORT:
 682                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
 683                                    itos(*((gushort *)pparam->data)));
 684                 break;
 685         default:
 686                 g_warning("Invalid PrefType for GtkEntry widget: %d",
 687                           pparam->type);
 688         }
 689 }
 690
 691 void prefs_set_entry_from_escaped(PrefParam *pparam)
 692 {
 693         gchar **str;
 694
 695         cm_return_if_fail(*pparam->widget != NULL);
 696
 697         switch (pparam->type) {
 698         case P_STRING:
 699                 str = (gchar **)pparam->data;
 700                 pref_set_entry_from_pref(GTK_ENTRY(*pparam->widget),
 701                                    *str ? *str : "");
 702                 break;
 703         default:
 704                 g_warning("Invalid escaped PrefType for GtkEntry widget: %d",
 705                           pparam->type);
 706         }
 707 }
 708
 709 void prefs_set_data_from_text(PrefParam *pparam)
 710 {
 711         gchar **str;
 712         gchar *text = NULL, *tp = NULL;
 713         gchar *tmp, *tmpp;
 714
 715         cm_return_if_fail(*pparam->widget != NULL);
 716
 717         switch (pparam->type) {
 718         case P_STRING:
 719                 str = (gchar **)pparam->data;
 720                 g_free(*str);
 721                 if (GTK_IS_EDITABLE(*pparam->widget)) {   /* need? */
 722                         tp = text = gtk_editable_get_chars
 723                                         (GTK_EDITABLE(*pparam->widget), 0, -1);
 724                 } else if (GTK_IS_TEXT_VIEW(*pparam->widget)) {
 725                         GtkTextView *textview = GTK_TEXT_VIEW(*pparam->widget);
 726                         GtkTextBuffer *buffer = gtk_text_view_get_buffer(textview);
 727                         GtkTextIter start, end;
 728                         gtk_text_buffer_get_start_iter(buffer, &start);
 729                         gtk_text_buffer_get_iter_at_offset(buffer, &end, -1);
 730                         tp = text = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
 731                 }
 732
 733                 cm_return_if_fail (tp && text);
 734
 735                 if (text[0] == '\0') {
 736                         *str = NULL;
 737                         g_free(text);
 738                         break;
 739                 }
 740
 741                 Xalloca(tmpp = tmp, strlen(text) * 2 + 1,
 742                         { *str = NULL; break; });
 743                 while (*tp) {
 744                         if (*tp == '\n') {
 745                                 *tmpp++ = '\\';
 746                                 *tmpp++ = 'n';
 747                                 tp++;
 748                         } else
 749                                 *tmpp++ = *tp++;
 750                 }
 751                 *tmpp = '\0';
 752                 *str = g_strdup(tmp);
 753                 g_free(text);
 754                 break;
 755         default:
 756                 g_warning("Invalid PrefType for GtkText widget: %d",
 757                           pparam->type);
 758         }
 759 }
 760
 761 void prefs_set_escaped_data_from_text(PrefParam *pparam)
 762 {
 763         gchar **str;
 764
 765         cm_return_if_fail(*pparam->widget != NULL);
 766
 767         switch (pparam->type) {
 768         case P_STRING:
 769                 str = (gchar **)pparam->data;
 770                 g_free(*str);
 771                 *str = pref_get_pref_from_textview(GTK_TEXT_VIEW(*pparam->widget));
 772                 break;
 773         default:
 774                 g_warning("Invalid escaped PrefType for GtkText widget: %d",
 775                           pparam->type);
 776         }
 777 }
 778
 779 void prefs_set_text(PrefParam *pparam)
 780 {
 781         gchar *buf, *sp, *bufp;
 782         gchar **str;
 783         GtkTextView *text;
 784         GtkTextBuffer *buffer;
 785         GtkTextIter iter;
 786
 787         cm_return_if_fail(*pparam->widget != NULL);
 788
 789         switch (pparam->type) {
 790         case P_STRING:
 791                 str = (gchar **)pparam->data;
 792                 if (*str) {
 793                         bufp = buf = alloca(strlen(*str) + 1);
 794                         if (!buf) buf = "";
 795                         else {
 796                                 sp = *str;
 797                                 while (*sp) {
 798                                         if (*sp == '\\' && *(sp + 1) == 'n') {
 799                                                 *bufp++ = '\n';
 800                                                 sp += 2;
 801                                         } else
 802                                                 *bufp++ = *sp++;
 803                                 }
 804                                 *bufp = '\0';
 805                         }
 806                 } else
 807                         buf = "";
 808
 809                 text = GTK_TEXT_VIEW(*pparam->widget);
 810                 buffer = gtk_text_view_get_buffer(text);
 811                 gtk_text_buffer_set_text(buffer, "", -1);
 812                 gtk_text_buffer_get_start_iter(buffer, &iter);
 813                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
 814                 break;
 815         default:
 816                 g_warning("Invalid PrefType for GtkTextView widget: %d",
 817                           pparam->type);
 818         }
 819 }
 820
 821 void prefs_set_text_from_escaped(PrefParam *pparam)
 822 {
 823         gchar **str;
 824
 825         cm_return_if_fail(*pparam->widget != NULL);
 826
 827         switch (pparam->type) {
 828         case P_STRING:
 829                 str = (gchar **)pparam->data;
 830                 pref_set_textview_from_pref(GTK_TEXT_VIEW(*pparam->widget),
 831                                  *str ? *str : "");
 832                 break;
 833         default:
 834                 g_warning("Invalid escaped PrefType for GtkTextView widget: %d",
 835                           pparam->type);
 836         }
 837 }
 838
 839 void prefs_set_data_from_toggle(PrefParam *pparam)
 840 {
 841         cm_return_if_fail(pparam->type == P_BOOL);
 842         cm_return_if_fail(*pparam->widget != NULL);
 843
 844         *((gboolean *)pparam->data) =
 845                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(*pparam->widget));
 846 }
 847
 848 void prefs_set_toggle(PrefParam *pparam)
 849 {
 850         cm_return_if_fail(pparam->type == P_BOOL);
 851         cm_return_if_fail(*pparam->widget != NULL);
 852
 853         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(*pparam->widget),
 854                                      *((gboolean *)pparam->data));
 855 }
 856
 857 void prefs_set_data_from_spinbtn(PrefParam *pparam)
 858 {
 859         cm_return_if_fail(*pparam->widget != NULL);
 860
 861         switch (pparam->type) {
 862         case P_INT:
 863                 *((gint *)pparam->data) =
 864                         gtk_spin_button_get_value_as_int
 865                         (GTK_SPIN_BUTTON(*pparam->widget));
 866                 break;
 867         case P_USHORT:
 868                 *((gushort *)pparam->data) =
 869                         (gushort)gtk_spin_button_get_value_as_int
 870                         (GTK_SPIN_BUTTON(*pparam->widget));
 871                 break;
 872         default:
 873                 g_warning("Invalid PrefType for GtkSpinButton widget: %d",
 874                           pparam->type);
 875         }
 876 }
 877
 878 void prefs_set_spinbtn(PrefParam *pparam)
 879 {
 880         cm_return_if_fail(*pparam->widget != NULL);
 881
 882         switch (pparam->type) {
 883         case P_INT:
 884                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 885                                           (gfloat)*((gint *)pparam->data));
 886                 break;
 887         case P_USHORT:
 888                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
 889                                           (gfloat)*((gushort *)pparam->data));
 890                 break;
 891         default:
 892                 g_warning("Invalid PrefType for GtkSpinButton widget: %d",
 893                           pparam->type);
 894         }
 895 }
 896
 897 static GSList *prefs_pages = NULL;
 898
 899 static void prefs_gtk_window_closed_cb(PrefsWindow *prefswindow)
 900 {
 901         if (prefswindow == NULL)
 902                 return;
 903
 904         if (prefswindow->dialog_response > PREFSWINDOW_RESPONSE_CANCEL)
 905                 prefs_common_write_config();
 906 }
 907
 908 void prefs_gtk_open(void)
 909 {
 910         prefswindow_open(_("Preferences"), prefs_pages, NULL,
 911                         &prefs_common.prefswin_width, &prefs_common.prefswin_height,
 912                         NULL, prefs_gtk_window_closed_cb, prefs_gtk_window_closed_cb);
 913 }
 914
 915 void prefs_gtk_register_page(PrefsPage *page)
 916 {
 917         prefs_pages = g_slist_append(prefs_pages, page);
 918 }
 919
 920 void prefs_gtk_unregister_page(PrefsPage *page)
 921 {
 922         prefs_pages = g_slist_remove(prefs_pages, page);
 923 }
 924
 925 static void prefs_destroy_whole_cache(gpointer to_free)
 926 {
 927         GHashTable *table = (GHashTable *)to_free;
 928         g_hash_table_destroy(table);
 929 }
 930
 931 static void prefs_destroy_file_cache(gpointer to_free)
 932 {
 933         GHashTable *table = (GHashTable *)to_free;
 934         g_hash_table_destroy(table);
 935 }
 936
 937 static int prefs_cache_sections(GHashTable *file_cache, const gchar *rcfile)
 938 {
 939         FILE *fp = NULL;
 940         gchar buf[PREFSBUFSIZE];
 941         GHashTable *section_cache = NULL;
 942
 943         if (rcfile)
 944                 fp = g_fopen(rcfile, "rb");
 945         if (!fp) {
 946                 debug_print("cache: %s: %s\n", rcfile?rcfile:"(null)", g_strerror(errno));
 947                 return -1;
 948         }
 949
 950 #ifdef HAVE_FGETS_UNLOCKED
 951         flockfile(fp);
 952 #endif
 953
 954         while (SC_FGETS(buf, sizeof(buf), fp) != NULL) {
 955                 strretchomp(buf);
 956                 if (buf[0] == '\0')
 957                         continue;
 958                 if (buf[0] == '#')
 959                         continue; /* comment */
 960                 if (buf[0] == '[') { /* new section */
 961                         gchar *blockname = g_strdup(buf+1);
 962
 963                         if (strrchr(blockname, ']'))
 964                                 *strrchr(blockname, ']') = '\0';
 965
 966                         if ((section_cache = g_hash_table_lookup(file_cache, blockname)) == NULL) {
 967                                 debug_print("new section '%s'\n", blockname);
 968                                 section_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
 969                                                 g_free, NULL);
 970                                 g_hash_table_insert(file_cache,
 971                                         blockname, section_cache);
 972                         } else {
 973                                 debug_print("section '%s' already done\n", blockname);
 974                                 g_free(blockname);
 975                                 section_cache = NULL;
 976                                 continue;
 977                         }
 978                 } else {
 979                         if (!section_cache) {
 980                                 debug_print("skipping stuff %s with no section\n", buf);
 981                                 continue;
 982                         } else {
 983                                 gchar *pref;
 984
 985                                 if (!strchr(buf, '=')) {
 986                                         /* plugins do differently */
 987                                         continue;
 988                                 }
 989                                 pref = g_strdup(buf);
 990
 991                                 //debug_print("new pref '%s'\n", pref);
 992                                 g_hash_table_insert(section_cache, pref, GINT_TO_POINTER(1));
 993                         }
 994                 }
 995         }
 996 #ifdef HAVE_FGETS_UNLOCKED
 997         funlockfile(fp);
 998 #endif
 999         fclose(fp);
1000         return 0;
1001 }
1002
1003 static int prefs_cache(const gchar *rcfile)
1004 {
1005         GHashTable *file_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
1006                                         g_free, prefs_destroy_file_cache);
1007
1008         debug_print("new file '%s'\n", rcfile?rcfile:"(null)");
1009         g_hash_table_insert(whole_cache, g_strdup(rcfile), file_cache);
1010
1011         return prefs_cache_sections(file_cache, rcfile);
1012 }
1013
1014 void prefs_prepare_cache(void)
1015 {
1016         gchar *clawsrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
1017         gchar *folderitemrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, FOLDERITEM_RC, NULL);
1018         gchar *accountrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, ACCOUNT_RC, NULL);
1019
1020         if (whole_cache == NULL) {
1021                 whole_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
1022                                 g_free, prefs_destroy_whole_cache);
1023         } else {
1024                 debug_print("already cached\n");
1025                 g_free(clawsrc);
1026                 g_free(folderitemrc);
1027                 g_free(accountrc);
1028                 return;
1029         }
1030         if (prefs_cache(clawsrc) < 0 ||
1031             prefs_cache(folderitemrc) < 0 ||
1032             prefs_cache(accountrc) < 0)
1033                 prefs_destroy_cache();
1034
1035         g_free(clawsrc);
1036         g_free(folderitemrc);
1037         g_free(accountrc);
1038 }
1039
1040 void prefs_destroy_cache(void)
1041 {
1042         if (!whole_cache) {
1043                 debug_print("no cache\n");
1044                 return;
1045         }
1046         debug_print("destroying cache\n");
1047         g_hash_table_destroy(whole_cache);
1048         whole_cache = NULL;
1049         return;
1050 }
1051
1052 static void prefs_parse_cache(gpointer key, gpointer value, gpointer user_data)
1053 {
1054         gchar *pref = (gchar *)key;
1055
1056         PrefParam *param = (PrefParam *)user_data;
1057
1058         prefs_config_parse_one_line(param, pref);
1059 }
1060
1061 static gboolean prefs_read_config_from_cache(PrefParam *param, const gchar *label,
1062                                const gchar *rcfile)
1063 {
1064         GHashTable *sections_table = NULL;
1065         GHashTable *values_table = NULL;
1066         sections_table = g_hash_table_lookup(whole_cache, rcfile);
1067
1068         if (sections_table == NULL) {
1069                 g_warning("Can't find %s in the whole cache", rcfile?rcfile:"(null)");
1070                 return FALSE;
1071         }
1072         values_table = g_hash_table_lookup(sections_table, label);
1073
1074         if (values_table == NULL) {
1075                 debug_print("no '%s' section in '%s' cache\n", label?label:"(null)", rcfile?rcfile:"(null)");
1076                 return TRUE;
1077         }
1078         g_hash_table_foreach(values_table, prefs_parse_cache, param);
1079         return TRUE;
1080 }