Use GLib's implementation of Base64 instead of our own.
[claws.git] / src / prefs_customheader.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2012 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 #include "defs.h"
26
27 #include <glib.h>
28 #include <glib/gi18n.h>
29 #include <gtk/gtk.h>
30 #include <gdk/gdkkeysyms.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <errno.h>
35
36 #include "main.h"
37 #include "prefs_gtk.h"
38 #include "prefs_customheader.h"
39 #include "prefs_common.h"
40 #include "prefs_account.h"
41 #include "mainwindow.h"
42 #include "foldersel.h"
43 #include "manage_window.h"
44 #include "customheader.h"
45 #include "folder.h"
46 #include "utils.h"
47 #include "gtkutils.h"
48 #include "alertpanel.h"
49 #include "filesel.h"
50 #include "combobox.h"
51
52 enum {
53         CUSTHDR_STRING,         /*!< display string managed by list store */
54         CUSTHDR_DATA,           /*!< string managed by us */
55         N_CUSTHDR_COLUMNS
56 };
57
58 static struct CustomHdr {
59         GtkWidget *window;
60
61         GtkWidget *ok_btn;
62         GtkWidget *cancel_btn;
63
64         GtkWidget *hdr_combo;
65         GtkWidget *hdr_entry;
66         GtkWidget *val_entry;
67         GtkWidget *preview;
68         GtkWidget *list_view;
69 } customhdr;
70
71 /* widget creating functions */
72 static void prefs_custom_header_create  (void);
73
74 static void prefs_custom_header_set_dialog              (PrefsAccount *ac);
75 static void prefs_custom_header_set_list                (PrefsAccount *ac);
76 static void prefs_custom_header_list_view_set_row       (PrefsAccount *ac);
77
78 /* callback functions */
79 static void prefs_custom_header_add_cb          (void);
80 static void prefs_custom_header_val_from_file_cb(void);
81 static void prefs_custom_header_delete_cb       (void);
82 static void prefs_custom_header_up              (void);
83 static void prefs_custom_header_down            (void);
84
85 static gboolean prefs_custom_header_key_pressed (GtkWidget      *widget,
86                                                  GdkEventKey    *event,
87                                                  gpointer        data);
88 static void prefs_custom_header_ok              (void);
89 static void prefs_custom_header_cancel          (void);
90 static gint prefs_custom_header_deleted         (GtkWidget      *widget,
91                                                  GdkEventAny    *event,
92                                                  gpointer        data);
93
94 static GtkListStore* prefs_custom_header_create_data_store      (void);
95
96 static void prefs_custom_header_list_view_insert_header (GtkWidget *list_view,
97                                                          GtkTreeIter *row_iter,
98                                                          gchar *header,
99                                                          gpointer data);
100
101 static GtkWidget *prefs_custom_header_list_view_create (void);
102
103 static void prefs_custom_header_create_list_view_columns        (GtkWidget *list_view);
104
105 static gboolean prefs_custom_header_selected    (GtkTreeSelection *selector,
106                                                  GtkTreeModel *model, 
107                                                  GtkTreePath *path,
108                                                  gboolean currently_selected,
109                                                  gpointer data);
110
111
112 static PrefsAccount *cur_ac = NULL;
113
114 void prefs_custom_header_open(PrefsAccount *ac)
115 {
116         if (!customhdr.window) {
117                 prefs_custom_header_create();
118         }
119
120         manage_window_set_transient(GTK_WINDOW(customhdr.window));
121         gtk_widget_grab_focus(customhdr.ok_btn);
122
123         prefs_custom_header_set_dialog(ac);
124
125         cur_ac = ac;
126
127         gtk_widget_show(customhdr.window);
128         gtk_window_set_modal(GTK_WINDOW(customhdr.window), TRUE);
129 }
130
131 static void prefs_custom_header_create(void)
132 {
133         GtkWidget *window;
134         GtkWidget *vbox;
135
136         GtkWidget *ok_btn;
137         GtkWidget *cancel_btn;
138
139         GtkWidget *confirm_area;
140
141         GtkWidget *vbox1;
142
143         GtkWidget *table1;
144         GtkWidget *hdr_label;
145         GtkWidget *hdr_combo;
146         GtkWidget *val_label;
147         GtkWidget *val_entry;
148         GtkWidget *val_btn;
149
150         GtkWidget *reg_hbox;
151         GtkWidget *btn_hbox;
152         GtkWidget *arrow;
153         GtkWidget *add_btn;
154         GtkWidget *del_btn;
155         GtkWidget *preview;
156
157         GtkWidget *ch_hbox;
158         GtkWidget *ch_scrolledwin;
159         GtkWidget *list_view;
160
161         GtkWidget *btn_vbox;
162         GtkWidget *up_btn;
163         GtkWidget *down_btn;
164
165         debug_print("Creating custom header setting window...\n");
166
167         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "prefs_customheader");
168         gtk_container_set_border_width (GTK_CONTAINER (window), 8);
169         gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
170         gtk_window_set_resizable(GTK_WINDOW (window), TRUE);
171
172         vbox = gtk_vbox_new (FALSE, 6);
173         gtk_widget_show (vbox);
174         gtk_container_add (GTK_CONTAINER (window), vbox);
175
176         gtkut_stock_button_set_create(&confirm_area, &cancel_btn, GTK_STOCK_CANCEL,
177                                       &ok_btn, GTK_STOCK_OK,
178                                       NULL, NULL);
179         gtk_widget_show (confirm_area);
180         gtk_box_pack_end (GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
181         gtk_widget_grab_default (ok_btn);
182
183         gtk_window_set_title (GTK_WINDOW(window), _("Custom header configuration"));
184         MANAGE_WINDOW_SIGNALS_CONNECT (window);
185         g_signal_connect (G_OBJECT(window), "delete_event",
186                           G_CALLBACK(prefs_custom_header_deleted),
187                           NULL);
188         g_signal_connect (G_OBJECT(window), "key_press_event",
189                           G_CALLBACK(prefs_custom_header_key_pressed),
190                           NULL);
191         g_signal_connect (G_OBJECT(ok_btn), "clicked",
192                           G_CALLBACK(prefs_custom_header_ok), NULL);
193         g_signal_connect (G_OBJECT(cancel_btn), "clicked",
194                           G_CALLBACK(prefs_custom_header_cancel), NULL);
195
196         vbox1 = gtk_vbox_new (FALSE, VSPACING);
197         gtk_widget_show (vbox1);
198         gtk_box_pack_start (GTK_BOX (vbox), vbox1, TRUE, TRUE, 0);
199         gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);
200
201         table1 = gtk_table_new (3, 2, FALSE);
202         gtk_widget_show (table1);
203         gtk_box_pack_start (GTK_BOX (vbox1), table1,
204                             FALSE, FALSE, 0);
205         gtk_table_set_row_spacings (GTK_TABLE (table1), 8);
206         gtk_table_set_col_spacings (GTK_TABLE (table1), 8);
207
208         hdr_label = gtk_label_new (_("Header"));
209         gtk_widget_show (hdr_label);
210         gtk_table_attach (GTK_TABLE (table1), hdr_label, 0, 1, 0, 1,
211                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
212                           0, 0, 0);
213         gtk_misc_set_alignment (GTK_MISC (hdr_label), 0, 0.5);
214         
215         hdr_combo = combobox_text_new(TRUE, "User-Agent", "Face", "X-Face",
216                                       "X-Operating-System", NULL);
217         gtk_table_attach (GTK_TABLE (table1), hdr_combo, 0, 1, 1, 2,
218                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
219                           0, 0, 0);
220         gtk_widget_set_size_request (hdr_combo, 150, -1);
221
222         val_label = gtk_label_new (_("Value"));
223         gtk_widget_show (val_label);
224         gtk_table_attach (GTK_TABLE (table1), val_label, 1, 2, 0, 1,
225                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
226                           0, 0, 0);
227         gtk_misc_set_alignment (GTK_MISC (val_label), 0, 0.5);
228         
229         val_entry = gtk_entry_new ();
230         gtk_widget_show (val_entry);
231         gtk_table_attach (GTK_TABLE (table1), val_entry, 1, 2, 1, 2,
232                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
233                           0, 0, 0);
234         gtk_widget_set_size_request (val_entry, 200, -1);
235
236         val_btn = gtkut_get_browse_file_btn(_("Bro_wse"));
237         gtk_widget_show (val_btn);
238         gtk_table_attach (GTK_TABLE (table1), val_btn, 2, 3, 1, 2,
239                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
240                           0, 0, 0);
241         g_signal_connect (G_OBJECT (val_btn), "clicked",
242                           G_CALLBACK (prefs_custom_header_val_from_file_cb),
243                           NULL);
244
245         /* add / delete */
246
247         reg_hbox = gtk_hbox_new (FALSE, 4);
248         gtk_widget_show (reg_hbox);
249         gtk_box_pack_start (GTK_BOX (vbox1), reg_hbox, FALSE, FALSE, 0);
250
251         arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
252         gtk_widget_show (arrow);
253         gtk_box_pack_start (GTK_BOX (reg_hbox), arrow, FALSE, FALSE, 0);
254         gtk_widget_set_size_request (arrow, -1, 16);
255
256         btn_hbox = gtk_hbox_new (TRUE, 4);
257         gtk_widget_show (btn_hbox);
258         gtk_box_pack_start (GTK_BOX (reg_hbox), btn_hbox, FALSE, FALSE, 0);
259
260         add_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
261         gtk_widget_show (add_btn);
262         gtk_box_pack_start (GTK_BOX (btn_hbox), add_btn, FALSE, TRUE, 0);
263         g_signal_connect (G_OBJECT (add_btn), "clicked",
264                           G_CALLBACK (prefs_custom_header_add_cb),
265                           NULL);
266
267         del_btn = gtk_button_new_from_stock (GTK_STOCK_DELETE);
268         gtk_widget_show (del_btn);
269         gtk_box_pack_start (GTK_BOX (btn_hbox), del_btn, FALSE, TRUE, 0);
270         g_signal_connect (G_OBJECT (del_btn), "clicked",
271                           G_CALLBACK (prefs_custom_header_delete_cb),
272                           NULL);
273
274
275         ch_hbox = gtk_hbox_new (FALSE, 8);
276         gtk_widget_show (ch_hbox);
277         gtk_box_pack_start (GTK_BOX (vbox1), ch_hbox, TRUE, TRUE, 0);
278
279         ch_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
280         gtk_widget_set_size_request (ch_scrolledwin, -1, 200);
281         gtk_widget_show (ch_scrolledwin);
282         gtk_box_pack_start (GTK_BOX (ch_hbox), ch_scrolledwin, TRUE, TRUE, 0);
283         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (ch_scrolledwin),
284                                         GTK_POLICY_AUTOMATIC,
285                                         GTK_POLICY_AUTOMATIC);
286
287         list_view = prefs_custom_header_list_view_create();
288         gtk_widget_show (list_view);
289         gtk_container_add (GTK_CONTAINER (ch_scrolledwin), list_view);
290
291         btn_vbox = gtk_vbox_new (FALSE, 8);
292         gtk_widget_show (btn_vbox);
293         gtk_box_pack_start (GTK_BOX (ch_hbox), btn_vbox, FALSE, FALSE, 0);
294
295         up_btn = gtk_button_new_from_stock (GTK_STOCK_GO_UP);
296         gtk_widget_show (up_btn);
297         gtk_box_pack_start (GTK_BOX (btn_vbox), up_btn, FALSE, FALSE, 0);
298         g_signal_connect (G_OBJECT (up_btn), "clicked",
299                           G_CALLBACK (prefs_custom_header_up), NULL);
300
301         down_btn = gtk_button_new_from_stock (GTK_STOCK_GO_DOWN);
302         gtk_widget_show (down_btn);
303         gtk_box_pack_start (GTK_BOX (btn_vbox), down_btn, FALSE, FALSE, 0);
304         g_signal_connect (G_OBJECT (down_btn), "clicked",
305                           G_CALLBACK (prefs_custom_header_down), NULL);
306
307         preview = gtk_image_new ();
308         gtk_widget_show (preview);
309         gtk_box_pack_start (GTK_BOX (btn_vbox), preview, FALSE, FALSE, 0);
310
311         gtk_widget_show_all(window);
312
313         customhdr.window     = window;
314         customhdr.ok_btn     = ok_btn;
315         customhdr.cancel_btn = cancel_btn;
316         customhdr.preview = preview;
317
318         customhdr.hdr_combo  = hdr_combo;
319         customhdr.hdr_entry  = gtk_bin_get_child(GTK_BIN((hdr_combo)));
320         customhdr.val_entry  = val_entry;
321
322         customhdr.list_view   = list_view;
323 }
324
325 void prefs_custom_header_read_config(PrefsAccount *ac)
326 {
327         gchar *rcpath;
328         FILE *fp;
329         gchar buf[PREFSBUFSIZE];
330         CustomHeader *ch;
331
332         debug_print("Reading custom header configuration...\n");
333
334         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
335                              CUSTOM_HEADER_RC, NULL);
336         if ((fp = g_fopen(rcpath, "rb")) == NULL) {
337                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
338                 g_free(rcpath);
339                 ac->customhdr_list = NULL;
340                 return;
341         }
342         g_free(rcpath);
343
344         /* remove all previous headers list */
345         while (ac->customhdr_list != NULL) {
346                 ch = (CustomHeader *)ac->customhdr_list->data;
347                 ac->customhdr_list = g_slist_remove(ac->customhdr_list, ch);
348                 custom_header_free(ch);
349         }
350
351         while (fgets(buf, sizeof(buf), fp) != NULL) {
352                 ch = custom_header_read_str(buf);
353                 if (ch) {
354                         if (ch->account_id == ac->account_id) {
355                                 ac->customhdr_list =
356                                         g_slist_append(ac->customhdr_list, ch);
357                         } else
358                                 custom_header_free(ch);
359                 }
360         }
361
362         fclose(fp);
363 }
364
365 static void prefs_custom_header_write_config(PrefsAccount *ac)
366 {
367         gchar *rcpath;
368         PrefFile *pfile;
369         GSList *cur;
370         gchar buf[PREFSBUFSIZE];
371         FILE * fp;
372         CustomHeader *ch;
373
374         GSList *all_hdrs = NULL;
375
376         debug_print("Writing custom header configuration...\n");
377
378         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
379                              CUSTOM_HEADER_RC, NULL);
380
381         if ((fp = g_fopen(rcpath, "rb")) == NULL) {
382                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "fopen");
383         } else {
384                 all_hdrs = NULL;
385
386                 while (fgets(buf, sizeof(buf), fp) != NULL) {
387                         ch = custom_header_read_str(buf);
388                         if (ch) {
389                                 if (ch->account_id != ac->account_id)
390                                         all_hdrs =
391                                                 g_slist_append(all_hdrs, ch);
392                                 else
393                                         custom_header_free(ch);
394                         }
395                 }
396
397                 fclose(fp);
398         }
399
400         if ((pfile = prefs_write_open(rcpath)) == NULL) {
401                 g_warning("failed to write configuration to file\n");
402                 g_free(rcpath);
403                 return;
404         }
405
406         for (cur = all_hdrs; cur != NULL; cur = cur->next) {
407                 CustomHeader *hdr = (CustomHeader *)cur->data;
408                 gchar *chstr;
409
410                 chstr = custom_header_get_str(hdr);
411                 if (fputs(chstr, pfile->fp) == EOF ||
412                     fputc('\n', pfile->fp) == EOF) {
413                         FILE_OP_ERROR(rcpath, "fputs || fputc");
414                         prefs_file_close_revert(pfile);
415                         g_free(rcpath);
416                         g_free(chstr);
417                         return;
418                 }
419                 g_free(chstr);
420         }
421
422         for (cur = ac->customhdr_list; cur != NULL; cur = cur->next) {
423                 CustomHeader *hdr = (CustomHeader *)cur->data;
424                 gchar *chstr;
425
426                 chstr = custom_header_get_str(hdr);
427                 if (fputs(chstr, pfile->fp) == EOF ||
428                     fputc('\n', pfile->fp) == EOF) {
429                         FILE_OP_ERROR(rcpath, "fputs || fputc");
430                         prefs_file_close_revert(pfile);
431                         g_free(rcpath);
432                         g_free(chstr);
433                         return;
434                 }
435                 g_free(chstr);
436         }
437
438         g_free(rcpath);
439
440         while (all_hdrs != NULL) {
441                 ch = (CustomHeader *)all_hdrs->data;
442                 all_hdrs = g_slist_remove(all_hdrs, ch);
443                 custom_header_free(ch);
444         }
445
446         if (prefs_file_close(pfile) < 0) {
447                 g_warning("failed to write configuration to file\n");
448                 return;
449         }
450 }
451
452 static void prefs_custom_header_set_dialog(PrefsAccount *ac)
453 {
454         GtkListStore *store;
455         GSList *cur;
456         
457         store = GTK_LIST_STORE(gtk_tree_view_get_model
458                                 (GTK_TREE_VIEW(customhdr.list_view)));
459         gtk_list_store_clear(store);
460
461         for (cur = ac->customhdr_list; cur != NULL; cur = cur->next) {
462                 CustomHeader *ch = (CustomHeader *)cur->data;
463                 gchar *ch_str;
464
465                 ch_str = g_strdup_printf("%s: %s", ch->name,
466                                          ch->value ? ch->value : "");
467
468                 prefs_custom_header_list_view_insert_header
469                         (customhdr.list_view, NULL, ch_str, ch);                                                 
470
471                 g_free(ch_str);
472         }
473 }
474
475 static void prefs_custom_header_set_list(PrefsAccount *ac)
476 {
477         CustomHeader *ch;
478         GtkTreeIter iter;
479         GtkListStore *store;
480
481         g_slist_free(ac->customhdr_list);
482         ac->customhdr_list = NULL;
483
484         store = GTK_LIST_STORE(gtk_tree_view_get_model
485                                 (GTK_TREE_VIEW(customhdr.list_view)));
486
487         if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter)) {
488                 do {
489                         gtk_tree_model_get(GTK_TREE_MODEL(store), &iter,
490                                            CUSTHDR_DATA, &ch,
491                                            -1);
492                         ac->customhdr_list = g_slist_append(ac->customhdr_list, ch);
493                 } while (gtk_tree_model_iter_next(GTK_TREE_MODEL(store),
494                                                   &iter));
495         }
496 }
497
498 static void prefs_custom_header_list_view_set_row(PrefsAccount *ac)
499 {
500         CustomHeader *ch;
501         const gchar *entry_text;
502         gchar *ch_str;
503
504         entry_text = gtk_entry_get_text(GTK_ENTRY(customhdr.hdr_entry));
505         if (entry_text[0] == '\0') {
506                 alertpanel_error(_("Header name is not set."));
507                 return;
508         }
509         
510         while (*entry_text && 
511                (*entry_text == '\n' || *entry_text == '\r' || 
512                 *entry_text == '\t' || *entry_text == ' '))
513                 entry_text++;
514         
515         if (!custom_header_is_allowed(entry_text)) {
516                 alertpanel_error(_("This Header name is not allowed as a custom header."));
517                 return;
518         }
519
520         ch = g_new0(CustomHeader, 1);
521
522         ch->account_id = ac->account_id;
523
524         ch->name = g_strdup(entry_text);
525         unfold_line(ch->name);
526         g_strstrip(ch->name);
527         gtk_entry_set_text(GTK_ENTRY(customhdr.hdr_entry), ch->name);
528
529         entry_text = gtk_entry_get_text(GTK_ENTRY(customhdr.val_entry));
530         while (*entry_text && 
531                (*entry_text == '\n' || *entry_text == '\r' || 
532                 *entry_text == '\t' || *entry_text == ' '))
533                 entry_text++;
534         
535         if (entry_text[0] != '\0') {
536                 ch->value = g_strdup(entry_text);
537                 unfold_line(ch->value);
538                 g_strstrip(ch->value);
539                 gtk_entry_set_text(GTK_ENTRY(customhdr.val_entry), ch->value);
540         }
541
542         ch_str = g_strdup_printf("%s: %s", ch->name,
543                                  ch->value ? ch->value : "");
544         
545         prefs_custom_header_list_view_insert_header
546                 (customhdr.list_view, NULL, ch_str, ch);
547         
548         g_free(ch_str);
549
550         prefs_custom_header_set_list(cur_ac);
551
552 }
553
554 #define B64_LINE_SIZE           57
555 #define B64_BUFFSIZE            77
556 static void prefs_custom_header_val_from_file_cb(void)
557 {
558         gchar *filename = NULL;
559         gchar *contents = NULL;
560         const gchar *hdr = gtk_entry_get_text(GTK_ENTRY(customhdr.hdr_entry));
561         
562         if (!strcmp(hdr, "Face"))
563                 filename = filesel_select_file_open(_("Choose a PNG file"), NULL);
564         else if (!strcmp(hdr, "X-Face"))
565                 filename = filesel_select_file_open(_("Choose an XBM file"), NULL);
566         else
567                 filename = filesel_select_file_open(_("Choose a text file"), NULL);
568
569         if (!strcmp(hdr, "Face") || !strcmp(hdr, "X-Face")) {
570                 if (filename && is_file_exist(filename)) {
571                         FILE *fp = NULL;
572                         gint len;
573                         gchar inbuf[B64_LINE_SIZE], *outbuf;
574                         gchar *tmp = NULL;
575                         gint w, h;
576                         GdkPixbufFormat *format = gdk_pixbuf_get_file_info(
577                                                         filename, &w, &h);
578                         
579                         if (format == NULL) {
580                                 alertpanel_error(_("This file isn't an image."));
581                                 g_free(filename);
582                                 return;
583                         }
584                         if (w != 48 || h != 48) {
585                                 alertpanel_error(_("The chosen image isn't the correct size (48x48)."));
586                                 g_free(filename);
587                                 return; 
588                         }
589                         if (!strcmp(hdr, "Face")) {
590                                 if (get_file_size(filename) > 725) {
591                                         alertpanel_error(_("The image is too big; it must be maximum 725 bytes."));
592                                         g_free(filename);
593                                         return;
594                                 }
595                                 if (g_ascii_strcasecmp("png", gdk_pixbuf_format_get_name(format))) {
596                                         alertpanel_error(_("The image isn't in the correct format (PNG)."));
597                                         g_print("%s\n", gdk_pixbuf_format_get_name(format));
598                                         g_free(filename);
599                                         return;
600                                 }
601                         } else if (!strcmp(hdr, "X-Face")) {
602                                 gchar *tmp = NULL, *cmd = NULL;
603                                 int i = 0;
604                                 if (g_ascii_strcasecmp("xbm", gdk_pixbuf_format_get_name(format))) {
605                                         alertpanel_error(_("The image isn't in the correct format (XBM)."));
606                                         g_print("%s\n", gdk_pixbuf_format_get_name(format));
607                                         g_free(filename);
608                                         return;
609                                 }
610                                 cmd = g_strdup_printf("compface %s", filename);
611                                 tmp = get_command_output(cmd);
612                                 g_free(cmd);
613                                 if (tmp == NULL || *tmp == '\0') {
614                                         alertpanel_error(_("Couldn't call `compface`. Make sure it's in your $PATH."));
615                                         g_free(filename);
616                                         g_free(tmp);
617                                         return;
618                                 }
619                                 if (strstr(tmp, "compface:")) {
620                                         alertpanel_error(_("Compface error: %s"), tmp);
621                                         g_free(filename);
622                                         g_free(tmp);
623                                         return;
624                                 }
625                                 while (tmp[i]) {
626                                         gchar *tmp2 = NULL;
627                                         if (tmp[i] == ' ') {
628                                                 i++; continue;
629                                         } 
630                                         if (tmp[i] == '\r' || tmp[i] == '\n') {
631                                                 i++; continue;
632                                         }
633                                         tmp2 = contents;
634                                         contents = g_strdup_printf("%s%c",tmp2?tmp2:"", tmp[i]);
635                                         g_free(tmp2);
636                                         i++;
637                                 }
638                                 g_free(tmp);
639                                 goto settext;
640                         }
641
642                         fp = g_fopen(filename, "rb");
643                         if (!fp) {
644                                 g_free(filename);
645                                 return; 
646                         }
647
648                         while ((len = fread(inbuf, sizeof(gchar),
649                                             B64_LINE_SIZE, fp))
650                                == B64_LINE_SIZE) {
651                                 outbuf = g_base64_encode(inbuf, B64_LINE_SIZE);
652
653                                 tmp = contents;
654                                 contents = g_strconcat(tmp?tmp:"",outbuf, NULL);
655                                 g_free(outbuf);
656                                 g_free(tmp);
657                         }
658                         if (len > 0 && feof(fp)) {
659                                 tmp = contents;
660                                 outbuf = g_base64_encode(inbuf, len);
661                                 contents = g_strconcat(tmp?tmp:"",outbuf, NULL);
662                                 g_free(outbuf);
663                                 g_free(tmp);
664                         }
665                         fclose(fp);
666                 }
667         } else {
668                 if (!filename)
669                         return;
670
671                 contents = file_read_to_str(filename);
672                 if (strchr(contents, '\n') || strchr(contents,'\r')) {
673                         alertpanel_error(_("This file contains newlines."));
674                         g_free(contents);
675                         g_free(filename);
676                         return;
677                 }
678         }
679 settext:
680         if (contents && strlen(contents))
681                 gtk_entry_set_text(GTK_ENTRY(customhdr.val_entry), contents);
682         
683         g_free(contents);
684         g_free(filename);
685 }
686
687 static void prefs_custom_header_add_cb(void)
688 {
689         prefs_custom_header_list_view_set_row(cur_ac);
690 }
691
692 static void prefs_custom_header_delete_cb(void)
693 {
694         GtkTreeIter sel;
695         GtkTreeModel *model;
696         CustomHeader *ch;
697
698         if (!gtk_tree_selection_get_selected(gtk_tree_view_get_selection
699                                 (GTK_TREE_VIEW(customhdr.list_view)),
700                                 &model, &sel))
701                 return; 
702
703         if (alertpanel(_("Delete header"),
704                        _("Do you really want to delete this header?"),
705                        GTK_STOCK_CANCEL, GTK_STOCK_DELETE, NULL) != G_ALERTALTERNATE)
706                 return;
707
708         gtk_tree_model_get(model, &sel,
709                            CUSTHDR_DATA, &ch,
710                            -1);
711         gtk_list_store_remove(GTK_LIST_STORE(model), &sel);
712
713         cur_ac->customhdr_list = g_slist_remove(cur_ac->customhdr_list, ch);
714         
715         custom_header_free(ch);
716 }
717
718 static void prefs_custom_header_up(void)
719 {
720         GtkTreePath *prev, *sel;
721         GtkTreeIter isel;
722         GtkListStore *store = NULL;
723         GtkTreeModel *model = NULL;
724         GtkTreeIter iprev;
725         
726         if (!gtk_tree_selection_get_selected
727                 (gtk_tree_view_get_selection
728                         (GTK_TREE_VIEW(customhdr.list_view)),
729                  &model,
730                  &isel))
731                 return;
732         store = (GtkListStore *)model;
733         sel = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &isel);
734         if (!sel)
735                 return;
736         
737         /* no move if we're at row 0... */
738         prev = gtk_tree_path_copy(sel);
739         if (!gtk_tree_path_prev(prev)) {
740                 gtk_tree_path_free(prev);
741                 gtk_tree_path_free(sel);
742                 return;
743         }
744
745         gtk_tree_model_get_iter(GTK_TREE_MODEL(store),
746                                 &iprev, prev);
747         gtk_tree_path_free(sel);
748         gtk_tree_path_free(prev);
749
750         gtk_list_store_swap(store, &iprev, &isel);
751         prefs_custom_header_set_list(cur_ac);
752 }
753
754 static void prefs_custom_header_down(void)
755 {
756         GtkListStore *store = NULL;
757         GtkTreeModel *model = NULL;
758         GtkTreeIter next, sel;
759         
760         if (!gtk_tree_selection_get_selected
761                 (gtk_tree_view_get_selection
762                         (GTK_TREE_VIEW(customhdr.list_view)),
763                  &model,
764                  &sel))
765                 return;
766         store = (GtkListStore *)model;
767         next = sel;
768         if (!gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &next)) 
769                 return;
770
771         gtk_list_store_swap(store, &next, &sel);
772         prefs_custom_header_set_list(cur_ac);
773 }
774
775 static gboolean prefs_custom_header_key_pressed(GtkWidget *widget,
776                                                 GdkEventKey *event,
777                                                 gpointer data)
778 {
779         if (event && event->keyval == GDK_KEY_Escape)
780                 prefs_custom_header_cancel();
781         return FALSE;
782 }
783
784 static void prefs_custom_header_ok(void)
785 {
786         prefs_custom_header_write_config(cur_ac);
787         gtk_widget_hide(customhdr.window);
788         gtk_window_set_modal(GTK_WINDOW(customhdr.window), FALSE);
789 }
790
791 static void prefs_custom_header_cancel(void)
792 {
793         prefs_custom_header_read_config(cur_ac); 
794         gtk_widget_hide(customhdr.window);
795         gtk_window_set_modal(GTK_WINDOW(customhdr.window), FALSE);
796 }
797
798 static gint prefs_custom_header_deleted(GtkWidget *widget, GdkEventAny *event,
799                                         gpointer data)
800 {
801         prefs_custom_header_cancel();
802         return TRUE;
803 }
804
805 static GtkListStore* prefs_custom_header_create_data_store(void)
806 {
807         return gtk_list_store_new(N_CUSTHDR_COLUMNS,
808                                   G_TYPE_STRING,        
809                                   G_TYPE_POINTER,
810                                   -1);
811 }
812
813 static void prefs_custom_header_list_view_insert_header(GtkWidget *list_view,
814                                                         GtkTreeIter *row_iter,
815                                                         gchar *header,
816                                                         gpointer data)
817 {
818         GtkTreeIter iter;
819         GtkListStore *list_store = GTK_LIST_STORE(gtk_tree_view_get_model
820                                         (GTK_TREE_VIEW(list_view)));
821
822         if (row_iter == NULL) {
823                 /* append new */
824                 gtk_list_store_append(list_store, &iter);
825                 gtk_list_store_set(list_store, &iter,
826                                    CUSTHDR_STRING, header,
827                                    CUSTHDR_DATA,   data,
828                                    -1);
829         } else {
830                 /* change existing */
831                 CustomHeader *old_data;
832
833                 gtk_tree_model_get(GTK_TREE_MODEL(list_store), row_iter,
834                                    CUSTHDR_DATA, &old_data,
835                                    -1);
836
837                 custom_header_free(old_data);
838                 
839                 gtk_list_store_set(list_store, row_iter,
840                                    CUSTHDR_STRING, header,
841                                    CUSTHDR_DATA, data,
842                                    -1);
843         }
844 }
845
846 static GtkWidget *prefs_custom_header_list_view_create(void)
847 {
848         GtkTreeView *list_view;
849         GtkTreeSelection *selector;
850         GtkTreeModel *model;
851
852         model = GTK_TREE_MODEL(prefs_custom_header_create_data_store());
853         list_view = GTK_TREE_VIEW(gtk_tree_view_new_with_model(model));
854         g_object_unref(model);  
855         
856         gtk_tree_view_set_rules_hint(list_view, prefs_common.use_stripes_everywhere);
857         gtk_tree_view_set_reorderable(list_view, TRUE);
858         
859         selector = gtk_tree_view_get_selection(list_view);
860         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
861         gtk_tree_selection_set_select_function(selector, prefs_custom_header_selected,
862                                                NULL, NULL);
863
864         /* create the columns */
865         prefs_custom_header_create_list_view_columns(GTK_WIDGET(list_view));
866
867         return GTK_WIDGET(list_view);
868 }
869
870 static void prefs_custom_header_create_list_view_columns(GtkWidget *list_view)
871 {
872         GtkTreeViewColumn *column;
873         GtkCellRenderer *renderer;
874
875         renderer = gtk_cell_renderer_text_new();
876         column = gtk_tree_view_column_new_with_attributes
877                 (_("Current custom headers"),
878                  renderer,
879                  "text", CUSTHDR_STRING,
880                  NULL);
881         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);          
882 }
883
884 #define ENTRY_SET_TEXT(entry, str) \
885         gtk_entry_set_text(GTK_ENTRY(entry), str ? str : "")
886
887 static gboolean prefs_custom_header_selected(GtkTreeSelection *selector,
888                                              GtkTreeModel *model, 
889                                              GtkTreePath *path,
890                                              gboolean currently_selected,
891                                              gpointer data)
892 {
893         GtkTreeIter iter;
894         CustomHeader *ch;
895         GtkImage *preview;
896         GdkPixbuf *pixbuf;
897         CustomHeader default_ch = { 0, "", NULL };
898
899         if (currently_selected)
900                 return TRUE;
901
902         if (!gtk_tree_model_get_iter(model, &iter, path))
903                 return TRUE;
904
905         gtk_tree_model_get(model, &iter, 
906                            CUSTHDR_DATA, &ch,
907                            -1);
908         
909         if (!ch) ch = &default_ch;
910
911         ENTRY_SET_TEXT(customhdr.hdr_entry, ch->name);
912         ENTRY_SET_TEXT(customhdr.val_entry, ch->value);
913         if (!strcmp2("Face",ch->name)) {
914                 preview = GTK_IMAGE(face_get_from_header (ch->value));
915                 pixbuf = gtk_image_get_pixbuf(preview);
916                 gtk_image_set_from_pixbuf (GTK_IMAGE(customhdr.preview), pixbuf);
917                 gtk_widget_show(customhdr.preview);
918                 g_object_ref_sink (G_OBJECT(preview));
919         } 
920 #if HAVE_LIBCOMPFACE
921 else if (!strcmp2("X-Face", ch->name)) {
922                 preview = GTK_IMAGE(xface_get_from_header(ch->value));  
923                 pixbuf = gtk_image_get_pixbuf(preview);
924                 gtk_image_set_from_pixbuf (GTK_IMAGE(customhdr.preview), pixbuf);
925                 gtk_widget_show(customhdr.preview);
926                 g_object_ref_sink (G_OBJECT(preview));
927         } 
928 #endif
929 else {
930                 gtk_widget_hide(customhdr.preview);
931         }
932         return TRUE;
933 }
934
935 #undef ENTRY_SET_TEXT