Rewritten account passwords handling.
[claws.git] / 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                 case P_PASSWORD:
328                 {
329                         gchar *tmp = NULL;
330
331                         if (*((gchar **)param[i].data)) {
332                                 if (g_utf8_validate(*((gchar **)param[i].data), -1, NULL))
333                                         tmp = g_strdup(*((gchar **)param[i].data));
334                                 else {
335                                         tmp = conv_codeset_strdup(*((gchar **)param[i].data),
336                                                 conv_get_locale_charset_str_no_utf8(),
337                                                 CS_INTERNAL);
338                                         if (!tmp)
339                                                 tmp = g_strdup(*((gchar **)param[i].data));
340                                 }
341                         }
342
343                         g_snprintf(buf, sizeof(buf), "%s=%s\n", param[i].name,
344                                    tmp ? tmp : "");
345
346                         g_free(tmp);
347                         break;
348                 }
349                 case P_INT:
350                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
351                                    *((gint *)param[i].data));
352                         break;
353                 case P_BOOL:
354                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
355                                    *((gboolean *)param[i].data));
356                         break;
357                 case P_ENUM:
358                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
359                                    *((DummyEnum *)param[i].data));
360                         break;
361                 case P_USHORT:
362                         g_snprintf(buf, sizeof(buf), "%s=%d\n", param[i].name,
363                                    *((gushort *)param[i].data));
364                         break;
365                 case P_COLOR:
366                         g_snprintf(buf, sizeof buf,  "%s=#%6.6lx\n", param[i].name,
367                                    *((gulong *) param[i].data));
368                         break;
369                 default:
370                         /* unrecognized, fail */
371                         debug_print("Unrecognized parameter type\n");
372                         return -1;
373                 }
374
375                 if (buf[0] != '\0') {
376                         if (fputs(buf, fp) == EOF) {
377                                 perror("fputs");
378                                 return -1;
379                         }
380                 }
381         }
382
383         return 0;
384 }
385
386 void prefs_set_default(PrefParam *param)
387 {
388         gint i;
389         GdkColor color;
390
391         cm_return_if_fail(param != NULL);
392
393         for (i = 0; param[i].name != NULL; i++) {
394                 if (!param[i].data) continue;
395
396                 switch (param[i].type) {
397                 case P_STRING:
398                         g_free(*((gchar **)param[i].data));
399                         if (param[i].defval != NULL) {
400                                 if (!strncasecmp(param[i].defval, "ENV_", 4)) {
401                                         const gchar *envstr;
402                                         gchar *tmp;
403
404                                         envstr = g_getenv(param[i].defval + 4);
405                                         tmp = envstr && *envstr ?
406                                                 conv_codeset_strdup(envstr,
407                                                                     conv_get_locale_charset_str(),
408                                                                     CS_INTERNAL)
409                                                 : g_strdup("");
410                                         if (!tmp) {
411                                                 g_warning("Failed to convert character set.");
412                                                 tmp = g_strdup(envstr);
413                                         }
414                                         *((gchar **)param[i].data) = tmp;
415                                 } else if (param[i].defval[0] == '~')
416                                         *((gchar **)param[i].data) =
417                                                 g_strconcat(get_home_dir(),
418                                                             param[i].defval + 1,
419                                                             NULL);
420                                 else 
421                                         *((gchar **)param[i].data) =
422                                                 g_strdup(param[i].defval);
423                         } else
424                                 *((gchar **)param[i].data) = NULL;
425                         break;
426                 case P_PASSWORD:
427                         g_free(*((gchar **)param[i].data));
428                         if (param[i].defval != NULL) {
429                                 if (param[i].defval[0] != '\0')
430                                         *((gchar **)param[i].data) =
431                                                 g_strdup(param[i].defval);
432                                 else
433                                         *((gchar **)param[i].data) = NULL;
434                         } else
435                                 *((gchar **)param[i].data) = NULL;
436                         break;
437                 case P_INT:
438                         if (param[i].defval != NULL)
439                                 *((gint *)param[i].data) =
440                                         (gint)atoi(param[i].defval);
441                         else
442                                 *((gint *)param[i].data) = 0;
443                         break;
444                 case P_BOOL:
445                         if (param[i].defval != NULL) {
446                                 if (!g_ascii_strcasecmp(param[i].defval, "TRUE"))
447                                         *((gboolean *)param[i].data) = TRUE;
448                                 else
449                                         *((gboolean *)param[i].data) =
450                                                 atoi(param[i].defval) ? TRUE : FALSE;
451                         } else
452                                 *((gboolean *)param[i].data) = FALSE;
453                         break;
454                 case P_ENUM:
455                         if (param[i].defval != NULL)
456                                 *((DummyEnum*)param[i].data) =
457                                         (DummyEnum)atoi(param[i].defval);
458                         else
459                                 *((DummyEnum *)param[i].data) = 0;
460                         break;
461                 case P_USHORT:
462                         if (param[i].defval != NULL)
463                                 *((gushort *)param[i].data) =
464                                         (gushort)atoi(param[i].defval);
465                         else
466                                 *((gushort *)param[i].data) = 0;
467                         break;
468                 case P_COLOR:
469                         if (param[i].defval != NULL && gdk_color_parse(param[i].defval, &color))
470                                 *((gulong *)param[i].data) =
471                                         RGB_FROM_GDK_COLOR(color);
472                         else if (param[i].defval)
473                                 /* be compatible and accept ints */
474                                 *((gulong *)param[i].data) = strtoul(param[i].defval, 0, 10); 
475                         else
476                                 *((gulong *)param[i].data) = 0; 
477                         break;
478                 default:
479                         break;
480                 }
481         }
482 }
483
484 void prefs_free(PrefParam *param)
485 {
486         gint i;
487
488         cm_return_if_fail(param != NULL);
489
490         for (i = 0; param[i].name != NULL; i++) {
491                 if (!param[i].data) continue;
492
493                 switch (param[i].type) {
494                 case P_STRING:
495                 case P_PASSWORD:
496                         g_free(*((gchar **)param[i].data));
497                         break;
498                 default:
499                         break;
500                 }
501         }
502 }
503
504 void prefs_button_toggled(GtkToggleButton *toggle_btn, GtkWidget *widget)
505 {
506         gboolean is_active;
507
508         is_active = gtk_toggle_button_get_active(toggle_btn);
509         gtk_widget_set_sensitive(widget, is_active);
510 }
511
512 void prefs_button_toggled_reverse(GtkToggleButton *toggle_btn, GtkWidget *widget)
513 {
514         gboolean is_active;
515
516         is_active = gtk_toggle_button_get_active(toggle_btn);
517         gtk_widget_set_sensitive(widget, !is_active);
518 }
519
520 void prefs_set_dialog(PrefParam *param)
521 {
522         gint i;
523
524         for (i = 0; param[i].name != NULL; i++) {
525                 if (param[i].widget_set_func)
526                         param[i].widget_set_func(&param[i]);
527         }
528 }
529
530 void prefs_set_data_from_dialog(PrefParam *param)
531 {
532         gint i;
533
534         for (i = 0; param[i].name != NULL; i++) {
535                 if (param[i].data_set_func)
536                         param[i].data_set_func(&param[i]);
537         }
538 }
539
540 void prefs_set_dialog_to_default(PrefParam *param)
541 {
542         gint       i;
543         PrefParam  tmpparam;
544         gchar     *str_data = NULL;
545         gint       int_data;
546         gushort    ushort_data;
547         gboolean   bool_data;
548         DummyEnum  enum_data;
549
550         for (i = 0; param[i].name != NULL; i++) {
551                 if (!param[i].widget_set_func) continue;
552
553                 tmpparam = param[i];
554
555                 switch (tmpparam.type) {
556                 case P_STRING:
557                         if (tmpparam.defval) {
558                                 if (!g_ascii_strncasecmp(tmpparam.defval, "ENV_", 4)) {
559                                         str_data = g_strdup(g_getenv(param[i].defval + 4));
560                                         tmpparam.data = &str_data;
561                                         break;
562                                 } else if (tmpparam.defval[0] == '~') {
563                                         str_data =
564                                                 g_strconcat(get_home_dir(),
565                                                             param[i].defval + 1,
566                                                             NULL);
567                                         tmpparam.data = &str_data;
568                                         break;
569                                 }
570                         }
571                         tmpparam.data = &tmpparam.defval;
572                         break;
573                 case P_PASSWORD:
574                         tmpparam.data = &tmpparam.defval;
575                         break;
576                 case P_INT:
577                         if (tmpparam.defval)
578                                 int_data = atoi(tmpparam.defval);
579                         else
580                                 int_data = 0;
581                         tmpparam.data = &int_data;
582                         break;
583                 case P_USHORT:
584                         if (tmpparam.defval)
585                                 ushort_data = atoi(tmpparam.defval);
586                         else
587                                 ushort_data = 0;
588                         tmpparam.data = &ushort_data;
589                         break;
590                 case P_BOOL:
591                         if (tmpparam.defval) {
592                                 if (!g_ascii_strcasecmp(tmpparam.defval, "TRUE"))
593                                         bool_data = TRUE;
594                                 else
595                                         bool_data = atoi(tmpparam.defval)
596                                                 ? TRUE : FALSE;
597                         } else
598                                 bool_data = FALSE;
599                         tmpparam.data = &bool_data;
600                         break;
601                 case P_ENUM:
602                         if (tmpparam.defval)
603                                 enum_data = (DummyEnum)atoi(tmpparam.defval);
604                         else
605                                 enum_data = 0;
606                         tmpparam.data = &enum_data;
607                         break;
608                 case P_OTHER:
609                 default:
610                         break;
611                 }
612                 tmpparam.widget_set_func(&tmpparam);
613                 g_free(str_data);
614                 str_data = NULL;
615         }
616 }
617
618 void prefs_set_data_from_entry(PrefParam *pparam)
619 {
620         gchar **str;
621         const gchar *entry_str;
622
623         cm_return_if_fail(*pparam->widget != NULL);
624
625         entry_str = gtk_entry_get_text(GTK_ENTRY(*pparam->widget));
626
627         switch (pparam->type) {
628         case P_STRING:
629                 str = (gchar **)pparam->data;
630                 g_free(*str);
631                 *str = entry_str[0] ? g_strdup(entry_str) : NULL;
632                 break;
633         case P_USHORT:
634                 *((gushort *)pparam->data) = atoi(entry_str);
635                 break;
636         case P_INT:
637                 *((gint *)pparam->data) = atoi(entry_str);
638                 break;
639         case P_PASSWORD:
640                 str = (gchar **)pparam->data;
641                 g_free(*str);
642                 *str = password_encrypt(entry_str, NULL);
643                 break;
644         default:
645                 g_warning("Invalid PrefType for GtkEntry widget: %d",
646                           pparam->type);
647         }
648 }
649
650 void prefs_set_escaped_data_from_entry(PrefParam *pparam)
651 {
652         gchar **str;
653
654         cm_return_if_fail(*pparam->widget != NULL);
655
656         switch (pparam->type) {
657         case P_STRING:
658                 str = (gchar **)pparam->data;
659                 g_free(*str);
660                 *str = pref_get_pref_from_entry(GTK_ENTRY(*pparam->widget));
661                 break;
662         default:
663                 g_warning("Invalid escaped PrefType for GtkEntry widget: %d",
664                           pparam->type);
665         }
666 }
667
668 void prefs_set_entry(PrefParam *pparam)
669 {
670         gchar **str;
671
672         cm_return_if_fail(*pparam->widget != NULL);
673
674         switch (pparam->type) {
675         case P_STRING:
676                 str = (gchar **)pparam->data;
677                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
678                                    *str ? *str : "");
679                 break;
680         case P_INT:
681                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
682                                    itos(*((gint *)pparam->data)));
683                 break;
684         case P_USHORT:
685                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
686                                    itos(*((gushort *)pparam->data)));
687                 break;
688         case P_PASSWORD:
689                 str = (gchar **)pparam->data;
690                 gtk_entry_set_text(GTK_ENTRY(*pparam->widget),
691                                 password_decrypt(*str, NULL));
692                 break;
693         default:
694                 g_warning("Invalid PrefType for GtkEntry widget: %d",
695                           pparam->type);
696         }
697 }
698
699 void prefs_set_entry_from_escaped(PrefParam *pparam)
700 {
701         gchar **str;
702
703         cm_return_if_fail(*pparam->widget != NULL);
704
705         switch (pparam->type) {
706         case P_STRING:
707                 str = (gchar **)pparam->data;
708                 pref_set_entry_from_pref(GTK_ENTRY(*pparam->widget),
709                                    *str ? *str : "");
710                 break;
711         default:
712                 g_warning("Invalid escaped PrefType for GtkEntry widget: %d",
713                           pparam->type);
714         }
715 }
716
717 void prefs_set_data_from_text(PrefParam *pparam)
718 {
719         gchar **str;
720         gchar *text = NULL, *tp = NULL;
721         gchar *tmp, *tmpp;
722
723         cm_return_if_fail(*pparam->widget != NULL);
724
725         switch (pparam->type) {
726         case P_STRING:
727         case P_PASSWORD:
728                 str = (gchar **)pparam->data;
729                 g_free(*str);
730                 if (GTK_IS_EDITABLE(*pparam->widget)) {   /* need? */
731                         tp = text = gtk_editable_get_chars
732                                         (GTK_EDITABLE(*pparam->widget), 0, -1);
733                 } else if (GTK_IS_TEXT_VIEW(*pparam->widget)) {
734                         GtkTextView *textview = GTK_TEXT_VIEW(*pparam->widget);
735                         GtkTextBuffer *buffer = gtk_text_view_get_buffer(textview);
736                         GtkTextIter start, end;
737                         gtk_text_buffer_get_start_iter(buffer, &start);
738                         gtk_text_buffer_get_iter_at_offset(buffer, &end, -1);
739                         tp = text = gtk_text_buffer_get_text(buffer, &start, &end, FALSE);
740                 }
741
742                 cm_return_if_fail (tp && text);
743
744                 if (text[0] == '\0') {
745                         *str = NULL;
746                         g_free(text);
747                         break;
748                 }
749
750                 Xalloca(tmpp = tmp, strlen(text) * 2 + 1,
751                         { *str = NULL; break; });
752                 while (*tp) {
753                         if (*tp == '\n') {
754                                 *tmpp++ = '\\';
755                                 *tmpp++ = 'n';
756                                 tp++;
757                         } else
758                                 *tmpp++ = *tp++;
759                 }
760                 *tmpp = '\0';
761                 *str = g_strdup(tmp);
762                 g_free(text);
763                 break;
764         default:
765                 g_warning("Invalid PrefType for GtkText widget: %d",
766                           pparam->type);
767         }
768 }
769
770 void prefs_set_escaped_data_from_text(PrefParam *pparam)
771 {
772         gchar **str;
773
774         cm_return_if_fail(*pparam->widget != NULL);
775
776         switch (pparam->type) {
777         case P_STRING:
778                 str = (gchar **)pparam->data;
779                 g_free(*str);
780                 *str = pref_get_pref_from_textview(GTK_TEXT_VIEW(*pparam->widget));
781                 break;
782         default:
783                 g_warning("Invalid escaped PrefType for GtkText widget: %d",
784                           pparam->type);
785         }
786 }
787
788 void prefs_set_text(PrefParam *pparam)
789 {
790         gchar *buf, *sp, *bufp;
791         gchar **str;
792         GtkTextView *text;
793         GtkTextBuffer *buffer;
794         GtkTextIter iter;
795
796         cm_return_if_fail(*pparam->widget != NULL);
797
798         switch (pparam->type) {
799         case P_STRING:
800         case P_PASSWORD:
801                 str = (gchar **)pparam->data;
802                 if (*str) {
803                         bufp = buf = alloca(strlen(*str) + 1);
804                         if (!buf) buf = "";
805                         else {
806                                 sp = *str;
807                                 while (*sp) {
808                                         if (*sp == '\\' && *(sp + 1) == 'n') {
809                                                 *bufp++ = '\n';
810                                                 sp += 2;
811                                         } else
812                                                 *bufp++ = *sp++;
813                                 }
814                                 *bufp = '\0';
815                         }
816                 } else
817                         buf = "";
818
819                 text = GTK_TEXT_VIEW(*pparam->widget);
820                 buffer = gtk_text_view_get_buffer(text);
821                 gtk_text_buffer_set_text(buffer, "", -1);
822                 gtk_text_buffer_get_start_iter(buffer, &iter);
823                 gtk_text_buffer_insert(buffer, &iter, buf, -1);
824                 break;
825         default:
826                 g_warning("Invalid PrefType for GtkTextView widget: %d",
827                           pparam->type);
828         }
829 }
830
831 void prefs_set_text_from_escaped(PrefParam *pparam)
832 {
833         gchar **str;
834
835         cm_return_if_fail(*pparam->widget != NULL);
836
837         switch (pparam->type) {
838         case P_STRING:
839                 str = (gchar **)pparam->data;
840                 pref_set_textview_from_pref(GTK_TEXT_VIEW(*pparam->widget),
841                                  *str ? *str : "");
842                 break;
843         default:
844                 g_warning("Invalid escaped PrefType for GtkTextView widget: %d",
845                           pparam->type);
846         }
847 }
848
849 void prefs_set_data_from_toggle(PrefParam *pparam)
850 {
851         cm_return_if_fail(pparam->type == P_BOOL);
852         cm_return_if_fail(*pparam->widget != NULL);
853         
854         *((gboolean *)pparam->data) =
855                 gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(*pparam->widget));
856 }
857
858 void prefs_set_toggle(PrefParam *pparam)
859 {
860         cm_return_if_fail(pparam->type == P_BOOL);
861         cm_return_if_fail(*pparam->widget != NULL);
862
863         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(*pparam->widget),
864                                      *((gboolean *)pparam->data));
865 }
866
867 void prefs_set_data_from_spinbtn(PrefParam *pparam)
868 {
869         cm_return_if_fail(*pparam->widget != NULL);
870
871         switch (pparam->type) {
872         case P_INT:
873                 *((gint *)pparam->data) =
874                         gtk_spin_button_get_value_as_int
875                         (GTK_SPIN_BUTTON(*pparam->widget));
876                 break;
877         case P_USHORT:
878                 *((gushort *)pparam->data) =
879                         (gushort)gtk_spin_button_get_value_as_int
880                         (GTK_SPIN_BUTTON(*pparam->widget));
881                 break;
882         default:
883                 g_warning("Invalid PrefType for GtkSpinButton widget: %d",
884                           pparam->type);
885         }
886 }
887
888 void prefs_set_spinbtn(PrefParam *pparam)
889 {
890         cm_return_if_fail(*pparam->widget != NULL);
891
892         switch (pparam->type) {
893         case P_INT:
894                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
895                                           (gfloat)*((gint *)pparam->data));
896                 break;
897         case P_USHORT:
898                 gtk_spin_button_set_value(GTK_SPIN_BUTTON(*pparam->widget),
899                                           (gfloat)*((gushort *)pparam->data));
900                 break;
901         default:
902                 g_warning("Invalid PrefType for GtkSpinButton widget: %d",
903                           pparam->type);
904         }
905 }
906
907 static GSList *prefs_pages = NULL;
908
909 static void prefs_gtk_window_closed_cb(PrefsWindow *prefswindow)
910 {
911         if (prefswindow == NULL)
912                 return;
913
914         if (prefswindow->dialog_response > PREFSWINDOW_RESPONSE_CANCEL)
915                 prefs_common_write_config();
916 }
917
918 void prefs_gtk_open(void)
919 {
920         prefswindow_open(_("Preferences"), prefs_pages, NULL,
921                         &prefs_common.prefswin_width, &prefs_common.prefswin_height,
922                         NULL, prefs_gtk_window_closed_cb, prefs_gtk_window_closed_cb);
923 }
924
925 void prefs_gtk_register_page(PrefsPage *page)
926 {
927         prefs_pages = g_slist_append(prefs_pages, page);
928 }
929
930 void prefs_gtk_unregister_page(PrefsPage *page)
931 {
932         prefs_pages = g_slist_remove(prefs_pages, page);
933 }
934
935 static void prefs_destroy_whole_cache(gpointer to_free)
936 {       
937         GHashTable *table = (GHashTable *)to_free;
938         g_hash_table_destroy(table);
939 }
940
941 static void prefs_destroy_file_cache(gpointer to_free)
942 {       
943         GHashTable *table = (GHashTable *)to_free;
944         g_hash_table_destroy(table);
945 }
946
947 static int prefs_cache_sections(GHashTable *file_cache, const gchar *rcfile)
948 {
949         FILE *fp = NULL;
950         gchar buf[PREFSBUFSIZE];
951         GHashTable *section_cache = NULL;
952
953         if (rcfile)
954                 fp = g_fopen(rcfile, "rb");
955         if (!fp) {
956                 debug_print("cache: %s: %s\n", rcfile?rcfile:"(null)", g_strerror(errno));
957                 return -1;
958         }
959         
960 #ifdef HAVE_FGETS_UNLOCKED
961         flockfile(fp);
962 #endif
963         
964         while (SC_FGETS(buf, sizeof(buf), fp) != NULL) {
965                 strretchomp(buf);
966                 if (buf[0] == '\0')
967                         continue;
968                 if (buf[0] == '#')
969                         continue; /* comment */
970                 if (buf[0] == '[') { /* new section */
971                         gchar *blockname = g_strdup(buf+1);
972
973                         if (strrchr(blockname, ']'))
974                                 *strrchr(blockname, ']') = '\0';
975
976                         if ((section_cache = g_hash_table_lookup(file_cache, blockname)) == NULL) {
977                                 debug_print("new section '%s'\n", blockname);
978                                 section_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
979                                                 g_free, NULL);
980                                 g_hash_table_insert(file_cache, 
981                                         blockname, section_cache);
982                         } else {
983                                 debug_print("section '%s' already done\n", blockname);
984                                 g_free(blockname);
985                                 section_cache = NULL;
986                                 continue;
987                         }
988                 } else {
989                         if (!section_cache) {
990                                 debug_print("skipping stuff %s with no section\n", buf);
991                                 continue;
992                         } else {
993                                 gchar *pref;
994                                 
995                                 if (!strchr(buf, '=')) {
996                                         /* plugins do differently */
997                                         continue;
998                                 }
999                                 pref = g_strdup(buf);
1000                                 
1001                                 //debug_print("new pref '%s'\n", pref);
1002                                 g_hash_table_insert(section_cache, pref, GINT_TO_POINTER(1));
1003                         }
1004                 }
1005         }
1006 #ifdef HAVE_FGETS_UNLOCKED
1007         funlockfile(fp);
1008 #endif
1009         fclose(fp);
1010         return 0;
1011 }
1012
1013 static int prefs_cache(const gchar *rcfile)
1014 {
1015         GHashTable *file_cache = g_hash_table_new_full(g_str_hash, g_str_equal, 
1016                                         g_free, prefs_destroy_file_cache);
1017         
1018         debug_print("new file '%s'\n", rcfile?rcfile:"(null)");
1019         g_hash_table_insert(whole_cache, g_strdup(rcfile), file_cache);
1020         
1021         return prefs_cache_sections(file_cache, rcfile);
1022 }
1023
1024 void prefs_prepare_cache(void)
1025 {
1026         gchar *clawsrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, COMMON_RC, NULL);
1027         gchar *folderitemrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, FOLDERITEM_RC, NULL);
1028         gchar *accountrc = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, ACCOUNT_RC, NULL);
1029         
1030         if (whole_cache == NULL) {
1031                 whole_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
1032                                 g_free, prefs_destroy_whole_cache);
1033         } else {
1034                 debug_print("already cached\n");
1035                 g_free(clawsrc);
1036                 g_free(folderitemrc);
1037                 g_free(accountrc);
1038                 return;
1039         }
1040         if (prefs_cache(clawsrc) < 0 ||
1041             prefs_cache(folderitemrc) < 0 ||
1042             prefs_cache(accountrc) < 0)
1043                 prefs_destroy_cache();
1044
1045         g_free(clawsrc);
1046         g_free(folderitemrc);
1047         g_free(accountrc);
1048 }
1049
1050 void prefs_destroy_cache(void)
1051 {
1052         if (!whole_cache) {
1053                 debug_print("no cache\n");
1054                 return;
1055         }
1056         debug_print("destroying cache\n");
1057         g_hash_table_destroy(whole_cache);
1058         whole_cache = NULL;
1059         return;
1060 }
1061
1062 static void prefs_parse_cache(gpointer key, gpointer value, gpointer user_data)
1063 {
1064         gchar *pref = (gchar *)key;
1065
1066         PrefParam *param = (PrefParam *)user_data;
1067         
1068         prefs_config_parse_one_line(param, pref);
1069 }
1070
1071 static gboolean prefs_read_config_from_cache(PrefParam *param, const gchar *label,
1072                                const gchar *rcfile) 
1073 {
1074         GHashTable *sections_table = NULL;
1075         GHashTable *values_table = NULL;
1076         sections_table = g_hash_table_lookup(whole_cache, rcfile);
1077         
1078         if (sections_table == NULL) {
1079                 g_warning("Can't find %s in the whole cache", rcfile?rcfile:"(null)");
1080                 return FALSE;
1081         }
1082         values_table = g_hash_table_lookup(sections_table, label);
1083         
1084         if (values_table == NULL) {
1085                 debug_print("no '%s' section in '%s' cache\n", label?label:"(null)", rcfile?rcfile:"(null)");
1086                 return TRUE;
1087         }
1088         g_hash_table_foreach(values_table, prefs_parse_cache, param);
1089         return TRUE;
1090 }