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 #include "file-utils.h"
  52
  53 enum {
  54         CUSTHDR_STRING,         /*!< display string managed by list store */
  55         CUSTHDR_DATA,           /*!< string managed by us */
  56         N_CUSTHDR_COLUMNS
  57 };
  58
  59 static struct CustomHdr {
  60         GtkWidget *window;
  61
  62         GtkWidget *ok_btn;
  63         GtkWidget *cancel_btn;
  64
  65         GtkWidget *hdr_combo;
  66         GtkWidget *hdr_entry;
  67         GtkWidget *val_entry;
  68         GtkWidget *preview;
  69         GtkWidget *list_view;
  70 } customhdr;
  71
  72 /* widget creating functions */
  73 static void prefs_custom_header_create  (void);
  74
  75 static void prefs_custom_header_set_dialog              (PrefsAccount *ac);
  76 static void prefs_custom_header_set_list                (PrefsAccount *ac);
  77 static void prefs_custom_header_list_view_set_row       (PrefsAccount *ac);
  78
  79 /* callback functions */
  80 static void prefs_custom_header_add_cb          (void);
  81 static void prefs_custom_header_val_from_file_cb(void);
  82 static void prefs_custom_header_delete_cb       (void);
  83 static void prefs_custom_header_up              (void);
  84 static void prefs_custom_header_down            (void);
  85
  86 static gboolean prefs_custom_header_key_pressed (GtkWidget      *widget,
  87                                                  GdkEventKey    *event,
  88                                                  gpointer        data);
  89 static void prefs_custom_header_ok              (void);
  90 static void prefs_custom_header_cancel          (void);
  91 static gint prefs_custom_header_deleted         (GtkWidget      *widget,
  92                                                  GdkEventAny    *event,
  93                                                  gpointer        data);
  94
  95 static GtkListStore* prefs_custom_header_create_data_store      (void);
  96
  97 static void prefs_custom_header_list_view_insert_header (GtkWidget *list_view,
  98                                                          GtkTreeIter *row_iter,
  99                                                          gchar *header,
 100                                                          gpointer data);
 101
 102 static GtkWidget *prefs_custom_header_list_view_create (void);
 103
 104 static void prefs_custom_header_create_list_view_columns        (GtkWidget *list_view);
 105
 106 static gboolean prefs_custom_header_selected    (GtkTreeSelection *selector,
 107                                                  GtkTreeModel *model,
 108                                                  GtkTreePath *path,
 109                                                  gboolean currently_selected,
 110                                                  gpointer data);
 111
 112
 113 static PrefsAccount *cur_ac = NULL;
 114
 115 void prefs_custom_header_open(PrefsAccount *ac)
 116 {
 117         if (!customhdr.window) {
 118                 prefs_custom_header_create();
 119         }
 120
 121         manage_window_set_transient(GTK_WINDOW(customhdr.window));
 122         gtk_widget_grab_focus(customhdr.ok_btn);
 123
 124         prefs_custom_header_set_dialog(ac);
 125
 126         cur_ac = ac;
 127
 128         gtk_widget_show(customhdr.window);
 129         gtk_window_set_modal(GTK_WINDOW(customhdr.window), TRUE);
 130 }
 131
 132 static void prefs_custom_header_create(void)
 133 {
 134         GtkWidget *window;
 135         GtkWidget *vbox;
 136
 137         GtkWidget *ok_btn;
 138         GtkWidget *cancel_btn;
 139
 140         GtkWidget *confirm_area;
 141
 142         GtkWidget *vbox1;
 143
 144         GtkWidget *table1;
 145         GtkWidget *hdr_label;
 146         GtkWidget *hdr_combo;
 147         GtkWidget *val_label;
 148         GtkWidget *val_entry;
 149         GtkWidget *val_btn;
 150
 151         GtkWidget *reg_hbox;
 152         GtkWidget *btn_hbox;
 153         GtkWidget *arrow;
 154         GtkWidget *add_btn;
 155         GtkWidget *del_btn;
 156         GtkWidget *preview;
 157
 158         GtkWidget *ch_hbox;
 159         GtkWidget *ch_scrolledwin;
 160         GtkWidget *list_view;
 161
 162         GtkWidget *btn_vbox;
 163         GtkWidget *up_btn;
 164         GtkWidget *down_btn;
 165
 166         debug_print("Creating custom header setting window...\n");
 167
 168         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "prefs_customheader");
 169         gtk_container_set_border_width (GTK_CONTAINER (window), 8);
 170         gtk_window_set_position (GTK_WINDOW (window), GTK_WIN_POS_CENTER);
 171         gtk_window_set_resizable(GTK_WINDOW (window), TRUE);
 172
 173         vbox = gtk_vbox_new (FALSE, 6);
 174         gtk_widget_show (vbox);
 175         gtk_container_add (GTK_CONTAINER (window), vbox);
 176
 177         gtkut_stock_button_set_create(&confirm_area, &cancel_btn, GTK_STOCK_CANCEL,
 178                                       &ok_btn, GTK_STOCK_OK,
 179                                       NULL, NULL);
 180         gtk_widget_show (confirm_area);
 181         gtk_box_pack_end (GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 182         gtk_widget_grab_default (ok_btn);
 183
 184         gtk_window_set_title (GTK_WINDOW(window), _("Custom header configuration"));
 185         MANAGE_WINDOW_SIGNALS_CONNECT (window);
 186         g_signal_connect (G_OBJECT(window), "delete_event",
 187                           G_CALLBACK(prefs_custom_header_deleted),
 188                           NULL);
 189         g_signal_connect (G_OBJECT(window), "key_press_event",
 190                           G_CALLBACK(prefs_custom_header_key_pressed),
 191                           NULL);
 192         g_signal_connect (G_OBJECT(ok_btn), "clicked",
 193                           G_CALLBACK(prefs_custom_header_ok), NULL);
 194         g_signal_connect (G_OBJECT(cancel_btn), "clicked",
 195                           G_CALLBACK(prefs_custom_header_cancel), NULL);
 196
 197         vbox1 = gtk_vbox_new (FALSE, VSPACING);
 198         gtk_widget_show (vbox1);
 199         gtk_box_pack_start (GTK_BOX (vbox), vbox1, TRUE, TRUE, 0);
 200         gtk_container_set_border_width (GTK_CONTAINER (vbox1), 2);
 201
 202         table1 = gtk_table_new (3, 2, FALSE);
 203         gtk_widget_show (table1);
 204         gtk_box_pack_start (GTK_BOX (vbox1), table1,
 205                             FALSE, FALSE, 0);
 206         gtk_table_set_row_spacings (GTK_TABLE (table1), 8);
 207         gtk_table_set_col_spacings (GTK_TABLE (table1), 8);
 208
 209         hdr_label = gtk_label_new (_("Header"));
 210         gtk_widget_show (hdr_label);
 211         gtk_table_attach (GTK_TABLE (table1), hdr_label, 0, 1, 0, 1,
 212                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
 213                           0, 0, 0);
 214         gtk_misc_set_alignment (GTK_MISC (hdr_label), 0, 0.5);
 215
 216         hdr_combo = combobox_text_new(TRUE, "User-Agent", "Face", "X-Face",
 217                                       "X-Operating-System", NULL);
 218         gtk_table_attach (GTK_TABLE (table1), hdr_combo, 0, 1, 1, 2,
 219                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
 220                           0, 0, 0);
 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
 235         val_btn = gtkut_get_browse_file_btn(_("Bro_wse"));
 236         gtk_widget_show (val_btn);
 237         gtk_table_attach (GTK_TABLE (table1), val_btn, 2, 3, 1, 2,
 238                           GTK_EXPAND | GTK_SHRINK | GTK_FILL,
 239                           0, 0, 0);
 240         g_signal_connect (G_OBJECT (val_btn), "clicked",
 241                           G_CALLBACK (prefs_custom_header_val_from_file_cb),
 242                           NULL);
 243
 244         /* add / delete */
 245
 246         reg_hbox = gtk_hbox_new (FALSE, 4);
 247         gtk_widget_show (reg_hbox);
 248         gtk_box_pack_start (GTK_BOX (vbox1), reg_hbox, FALSE, FALSE, 0);
 249
 250         arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_OUT);
 251         gtk_widget_show (arrow);
 252         gtk_box_pack_start (GTK_BOX (reg_hbox), arrow, FALSE, FALSE, 0);
 253
 254         btn_hbox = gtk_hbox_new (TRUE, 4);
 255         gtk_widget_show (btn_hbox);
 256         gtk_box_pack_start (GTK_BOX (reg_hbox), btn_hbox, FALSE, FALSE, 0);
 257
 258         add_btn = gtk_button_new_from_stock (GTK_STOCK_ADD);
 259         gtk_widget_show (add_btn);
 260         gtk_box_pack_start (GTK_BOX (btn_hbox), add_btn, FALSE, TRUE, 0);
 261         g_signal_connect (G_OBJECT (add_btn), "clicked",
 262                           G_CALLBACK (prefs_custom_header_add_cb),
 263                           NULL);
 264
 265         del_btn = gtk_button_new_from_stock (GTK_STOCK_DELETE);
 266         gtk_widget_show (del_btn);
 267         gtk_box_pack_start (GTK_BOX (btn_hbox), del_btn, FALSE, TRUE, 0);
 268         g_signal_connect (G_OBJECT (del_btn), "clicked",
 269                           G_CALLBACK (prefs_custom_header_delete_cb),
 270                           NULL);
 271
 272
 273         ch_hbox = gtk_hbox_new (FALSE, 8);
 274         gtk_widget_show (ch_hbox);
 275         gtk_box_pack_start (GTK_BOX (vbox1), ch_hbox, TRUE, TRUE, 0);
 276
 277         ch_scrolledwin = gtk_scrolled_window_new (NULL, NULL);
 278         gtk_widget_show (ch_scrolledwin);
 279         gtk_box_pack_start (GTK_BOX (ch_hbox), ch_scrolledwin, TRUE, TRUE, 0);
 280         gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (ch_scrolledwin),
 281                                         GTK_POLICY_AUTOMATIC,
 282                                         GTK_POLICY_AUTOMATIC);
 283
 284         list_view = prefs_custom_header_list_view_create();
 285         gtk_widget_show (list_view);
 286         gtk_container_add (GTK_CONTAINER (ch_scrolledwin), list_view);
 287
 288         btn_vbox = gtk_vbox_new (FALSE, 8);
 289         gtk_widget_show (btn_vbox);
 290         gtk_box_pack_start (GTK_BOX (ch_hbox), btn_vbox, FALSE, FALSE, 0);
 291
 292         up_btn = gtk_button_new_from_stock (GTK_STOCK_GO_UP);
 293         gtk_widget_show (up_btn);
 294         gtk_box_pack_start (GTK_BOX (btn_vbox), up_btn, FALSE, FALSE, 0);
 295         g_signal_connect (G_OBJECT (up_btn), "clicked",
 296                           G_CALLBACK (prefs_custom_header_up), NULL);
 297
 298         down_btn = gtk_button_new_from_stock (GTK_STOCK_GO_DOWN);
 299         gtk_widget_show (down_btn);
 300         gtk_box_pack_start (GTK_BOX (btn_vbox), down_btn, FALSE, FALSE, 0);
 301         g_signal_connect (G_OBJECT (down_btn), "clicked",
 302                           G_CALLBACK (prefs_custom_header_down), NULL);
 303
 304         preview = gtk_image_new ();
 305         gtk_widget_show (preview);
 306         gtk_box_pack_start (GTK_BOX (btn_vbox), preview, FALSE, FALSE, 0);
 307
 308         gtk_widget_show_all(window);
 309
 310         customhdr.window     = window;
 311         customhdr.ok_btn     = ok_btn;
 312         customhdr.cancel_btn = cancel_btn;
 313         customhdr.preview = preview;
 314
 315         customhdr.hdr_combo  = hdr_combo;
 316         customhdr.hdr_entry  = gtk_bin_get_child(GTK_BIN((hdr_combo)));
 317         customhdr.val_entry  = val_entry;
 318
 319         customhdr.list_view   = list_view;
 320 }
 321
 322 void prefs_custom_header_read_config(PrefsAccount *ac)
 323 {
 324         gchar *rcpath;
 325         FILE *fp;
 326         gchar buf[PREFSBUFSIZE];
 327         CustomHeader *ch;
 328
 329         debug_print("Reading custom header configuration...\n");
 330
 331         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 332                              CUSTOM_HEADER_RC, NULL);
 333         if ((fp = claws_fopen(rcpath, "rb")) == NULL) {
 334                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "claws_fopen");
 335                 g_free(rcpath);
 336                 ac->customhdr_list = NULL;
 337                 return;
 338         }
 339         g_free(rcpath);
 340
 341         /* remove all previous headers list */
 342         while (ac->customhdr_list != NULL) {
 343                 ch = (CustomHeader *)ac->customhdr_list->data;
 344                 ac->customhdr_list = g_slist_remove(ac->customhdr_list, ch);
 345                 custom_header_free(ch);
 346         }
 347
 348         while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
 349                 ch = custom_header_read_str(buf);
 350                 if (ch) {
 351                         if (ch->account_id == ac->account_id) {
 352                                 ac->customhdr_list =
 353                                         g_slist_append(ac->customhdr_list, ch);
 354                         } else
 355                                 custom_header_free(ch);
 356                 }
 357         }
 358
 359         claws_fclose(fp);
 360 }
 361
 362 static void prefs_custom_header_write_config(PrefsAccount *ac)
 363 {
 364         gchar *rcpath;
 365         PrefFile *pfile;
 366         GSList *cur;
 367         gchar buf[PREFSBUFSIZE];
 368         FILE * fp;
 369         CustomHeader *ch;
 370
 371         GSList *all_hdrs = NULL;
 372
 373         debug_print("Writing custom header configuration...\n");
 374
 375         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 376                              CUSTOM_HEADER_RC, NULL);
 377
 378         if ((fp = claws_fopen(rcpath, "rb")) == NULL) {
 379                 if (ENOENT != errno) FILE_OP_ERROR(rcpath, "claws_fopen");
 380         } else {
 381                 all_hdrs = NULL;
 382
 383                 while (claws_fgets(buf, sizeof(buf), fp) != NULL) {
 384                         ch = custom_header_read_str(buf);
 385                         if (ch) {
 386                                 if (ch->account_id != ac->account_id)
 387                                         all_hdrs =
 388                                                 g_slist_append(all_hdrs, ch);
 389                                 else
 390                                         custom_header_free(ch);
 391                         }
 392                 }
 393
 394                 claws_fclose(fp);
 395         }
 396
 397         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 398                 g_warning("failed to write configuration to file");
 399                 g_free(rcpath);
 400                 return;
 401         }
 402
 403         for (cur = all_hdrs; cur != NULL; cur = cur->next) {
 404                 CustomHeader *hdr = (CustomHeader *)cur->data;
 405                 gchar *chstr;
 406
 407                 chstr = custom_header_get_str(hdr);
 408                 if (claws_fputs(chstr, pfile->fp) == EOF ||
 409                     claws_fputc('\n', pfile->fp) == EOF) {
 410                         FILE_OP_ERROR(rcpath, "claws_fputs || claws_fputc");
 411                         prefs_file_close_revert(pfile);
 412                         g_free(rcpath);
 413                         g_free(chstr);
 414                         return;
 415                 }
 416                 g_free(chstr);
 417         }
 418
 419         for (cur = ac->customhdr_list; cur != NULL; cur = cur->next) {
 420                 CustomHeader *hdr = (CustomHeader *)cur->data;
 421                 gchar *chstr;
 422
 423                 chstr = custom_header_get_str(hdr);
 424                 if (claws_fputs(chstr, pfile->fp) == EOF ||
 425                     claws_fputc('\n', pfile->fp) == EOF) {
 426                         FILE_OP_ERROR(rcpath, "claws_fputs || claws_fputc");
 427                         prefs_file_close_revert(pfile);
 428                         g_free(rcpath);
 429                         g_free(chstr);
 430                         return;
 431                 }
 432                 g_free(chstr);
 433         }
 434
 435         g_free(rcpath);
 436
 437         while (all_hdrs != NULL) {
 438                 ch = (CustomHeader *)all_hdrs->data;
 439                 all_hdrs = g_slist_remove(all_hdrs, ch);
 440                 custom_header_free(ch);
 441         }
 442
 443         if (prefs_file_close(pfile) < 0) {
 444                 g_warning("failed to write configuration to file");
 445                 return;
 446         }
 447 }
 448
 449 static void prefs_custom_header_set_dialog(PrefsAccount *ac)
 450 {
 451         GtkListStore *store;
 452         GSList *cur;
 453
 454         store = GTK_LIST_STORE(gtk_tree_view_get_model
 455                                 (GTK_TREE_VIEW(customhdr.list_view)));
 456         gtk_list_store_clear(store);
 457
 458         for (cur = ac->customhdr_list; cur != NULL; cur = cur->next) {
 459                 CustomHeader *ch = (CustomHeader *)cur->data;
 460                 gchar *ch_str;
 461
 462                 ch_str = g_strdup_printf("%s: %s", ch->name,
 463                                          ch->value ? ch->value : "");
 464
 465                 prefs_custom_header_list_view_insert_header
 466                         (customhdr.list_view, NULL, ch_str, ch);
 467
 468                 g_free(ch_str);
 469         }
 470 }
 471
 472 static void prefs_custom_header_set_list(PrefsAccount *ac)
 473 {
 474         CustomHeader *ch;
 475         GtkTreeIter iter;
 476         GtkListStore *store;
 477
 478         g_slist_free(ac->customhdr_list);
 479         ac->customhdr_list = NULL;
 480
 481         store = GTK_LIST_STORE(gtk_tree_view_get_model
 482                                 (GTK_TREE_VIEW(customhdr.list_view)));
 483
 484         if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(store), &iter)) {
 485                 do {
 486                         gtk_tree_model_get(GTK_TREE_MODEL(store), &iter,
 487                                            CUSTHDR_DATA, &ch,
 488                                            -1);
 489                         ac->customhdr_list = g_slist_append(ac->customhdr_list, ch);
 490                 } while (gtk_tree_model_iter_next(GTK_TREE_MODEL(store),
 491                                                   &iter));
 492         }
 493 }
 494
 495 static void prefs_custom_header_list_view_set_row(PrefsAccount *ac)
 496 {
 497         CustomHeader *ch;
 498         const gchar *entry_text;
 499         gchar *ch_str;
 500
 501         entry_text = gtk_entry_get_text(GTK_ENTRY(customhdr.hdr_entry));
 502         if (entry_text[0] == '\0') {
 503                 alertpanel_error(_("Header name is not set."));
 504                 return;
 505         }
 506
 507         while (*entry_text &&
 508                (*entry_text == '\n' || *entry_text == '\r' ||
 509                 *entry_text == '\t' || *entry_text == ' '))
 510                 entry_text++;
 511
 512         if (!custom_header_is_allowed(entry_text)) {
 513                 alertpanel_error(_("This Header name is not allowed as a custom header."));
 514                 return;
 515         }
 516
 517         ch = g_new0(CustomHeader, 1);
 518
 519         ch->account_id = ac->account_id;
 520
 521         ch->name = g_strdup(entry_text);
 522         unfold_line(ch->name);
 523         g_strstrip(ch->name);
 524         gtk_entry_set_text(GTK_ENTRY(customhdr.hdr_entry), ch->name);
 525
 526         entry_text = gtk_entry_get_text(GTK_ENTRY(customhdr.val_entry));
 527         while (*entry_text &&
 528                (*entry_text == '\n' || *entry_text == '\r' ||
 529                 *entry_text == '\t' || *entry_text == ' '))
 530                 entry_text++;
 531
 532         if (entry_text[0] != '\0') {
 533                 ch->value = g_strdup(entry_text);
 534                 unfold_line(ch->value);
 535                 g_strstrip(ch->value);
 536                 gtk_entry_set_text(GTK_ENTRY(customhdr.val_entry), ch->value);
 537         }
 538
 539         ch_str = g_strdup_printf("%s: %s", ch->name,
 540                                  ch->value ? ch->value : "");
 541
 542         prefs_custom_header_list_view_insert_header
 543                 (customhdr.list_view, NULL, ch_str, ch);
 544
 545         g_free(ch_str);
 546
 547         prefs_custom_header_set_list(cur_ac);
 548
 549 }
 550
 551 #define B64_LINE_SIZE           57
 552 #define B64_BUFFSIZE            77
 553 static void prefs_custom_header_val_from_file_cb(void)
 554 {
 555         gchar *filename = NULL;
 556         gchar *contents = NULL;
 557         const gchar *hdr = gtk_entry_get_text(GTK_ENTRY(customhdr.hdr_entry));
 558
 559         if (!strcmp(hdr, "Face"))
 560                 filename = filesel_select_file_open(_("Choose a PNG file"), NULL);
 561         else if (!strcmp(hdr, "X-Face"))
 562                 filename = filesel_select_file_open(_("Choose an XBM file"), NULL);
 563         else
 564                 filename = filesel_select_file_open(_("Choose a text file"), NULL);
 565
 566         if (!strcmp(hdr, "Face") || !strcmp(hdr, "X-Face")) {
 567                 if (filename && is_file_exist(filename)) {
 568                         FILE *fp = NULL;
 569                         gint len;
 570                         gchar inbuf[B64_LINE_SIZE], *outbuf;
 571                         gchar *tmp = NULL;
 572                         gint w, h;
 573                         GdkPixbufFormat *format = gdk_pixbuf_get_file_info(
 574                                                         filename, &w, &h);
 575
 576                         if (format == NULL) {
 577                                 alertpanel_error(_("This file isn't an image."));
 578                                 g_free(filename);
 579                                 return;
 580                         }
 581                         if (w != 48 || h != 48) {
 582                                 alertpanel_error(_("The chosen image isn't the correct size (48x48)."));
 583                                 g_free(filename);
 584                                 return;
 585                         }
 586                         if (!strcmp(hdr, "Face")) {
 587                                 if (get_file_size(filename) > 725) {
 588                                         alertpanel_error(_("The image is too big; it must be maximum 725 bytes."));
 589                                         g_free(filename);
 590                                         return;
 591                                 }
 592                                 if (g_ascii_strcasecmp("png", gdk_pixbuf_format_get_name(format))) {
 593                                         alertpanel_error(_("The image isn't in the correct format (PNG)."));
 594                                         g_print("%s\n", gdk_pixbuf_format_get_name(format));
 595                                         g_free(filename);
 596                                         return;
 597                                 }
 598                         } else if (!strcmp(hdr, "X-Face")) {
 599                                 gchar *tmp = NULL, *cmd = NULL;
 600                                 int i = 0;
 601                                 if (g_ascii_strcasecmp("xbm", gdk_pixbuf_format_get_name(format))) {
 602                                         alertpanel_error(_("The image isn't in the correct format (XBM)."));
 603                                         g_print("%s\n", gdk_pixbuf_format_get_name(format));
 604                                         g_free(filename);
 605                                         return;
 606                                 }
 607                                 cmd = g_strdup_printf("compface %s", filename);
 608                                 tmp = get_command_output(cmd);
 609                                 g_free(cmd);
 610                                 if (tmp == NULL || *tmp == '\0') {
 611                                         alertpanel_error(_("Couldn't call `compface`. Make sure it's in your $PATH."));
 612                                         g_free(filename);
 613                                         g_free(tmp);
 614                                         return;
 615                                 }
 616                                 if (strstr(tmp, "compface:")) {
 617                                         alertpanel_error(_("Compface error: %s"), tmp);
 618                                         g_free(filename);
 619                                         g_free(tmp);
 620                                         return;
 621                                 }
 622                                 while (tmp[i]) {
 623                                         gchar *tmp2 = NULL;
 624                                         if (tmp[i] == ' ') {
 625                                                 i++; continue;
 626                                         }
 627                                         if (tmp[i] == '\r' || tmp[i] == '\n') {
 628                                                 i++; continue;
 629                                         }
 630                                         tmp2 = contents;
 631                                         contents = g_strdup_printf("%s%c",tmp2?tmp2:"", tmp[i]);
 632                                         g_free(tmp2);
 633                                         i++;
 634                                 }
 635                                 g_free(tmp);
 636                                 goto settext;
 637                         }
 638
 639                         fp = claws_fopen(filename, "rb");
 640                         if (!fp) {
 641                                 g_free(filename);
 642                                 return;
 643                         }
 644
 645                         while ((len = claws_fread(inbuf, sizeof(gchar),
 646                                             B64_LINE_SIZE, fp))
 647                                == B64_LINE_SIZE) {
 648                                 outbuf = g_base64_encode(inbuf, B64_LINE_SIZE);
 649
 650                                 tmp = contents;
 651                                 contents = g_strconcat(tmp?tmp:"",outbuf, NULL);
 652                                 g_free(outbuf);
 653                                 g_free(tmp);
 654                         }
 655                         if (len > 0 && claws_feof(fp)) {
 656                                 tmp = contents;
 657                                 outbuf = g_base64_encode(inbuf, len);
 658                                 contents = g_strconcat(tmp?tmp:"",outbuf, NULL);
 659                                 g_free(outbuf);
 660                                 g_free(tmp);
 661                         }
 662                         claws_fclose(fp);
 663                 }
 664         } else {
 665                 if (!filename)
 666                         return;
 667
 668                 contents = file_read_to_str(filename);
 669                 if (strchr(contents, '\n') || strchr(contents,'\r')) {
 670                         alertpanel_error(_("This file contains newlines."));
 671                         g_free(contents);
 672                         g_free(filename);
 673                         return;
 674                 }
 675         }
 676 settext:
 677         if (contents && strlen(contents))
 678                 gtk_entry_set_text(GTK_ENTRY(customhdr.val_entry), contents);
 679
 680         g_free(contents);
 681         g_free(filename);
 682 }
 683
 684 static void prefs_custom_header_add_cb(void)
 685 {
 686         prefs_custom_header_list_view_set_row(cur_ac);
 687 }
 688
 689 static void prefs_custom_header_delete_cb(void)
 690 {
 691         GtkTreeIter sel;
 692         GtkTreeModel *model;
 693         CustomHeader *ch;
 694
 695         if (!gtk_tree_selection_get_selected(gtk_tree_view_get_selection
 696                                 (GTK_TREE_VIEW(customhdr.list_view)),
 697                                 &model, &sel))
 698                 return;
 699
 700         if (alertpanel(_("Delete header"),
 701                        _("Do you really want to delete this header?"),
 702                        GTK_STOCK_CANCEL, GTK_STOCK_DELETE, NULL, ALERTFOCUS_FIRST) != G_ALERTALTERNATE)
 703                 return;
 704
 705         gtk_tree_model_get(model, &sel,
 706                            CUSTHDR_DATA, &ch,
 707                            -1);
 708         gtk_list_store_remove(GTK_LIST_STORE(model), &sel);
 709
 710         cur_ac->customhdr_list = g_slist_remove(cur_ac->customhdr_list, ch);
 711
 712         custom_header_free(ch);
 713 }
 714
 715 static void prefs_custom_header_up(void)
 716 {
 717         GtkTreePath *prev, *sel;
 718         GtkTreeIter isel;
 719         GtkListStore *store = NULL;
 720         GtkTreeModel *model = NULL;
 721         GtkTreeIter iprev;
 722
 723         if (!gtk_tree_selection_get_selected
 724                 (gtk_tree_view_get_selection
 725                         (GTK_TREE_VIEW(customhdr.list_view)),
 726                  &model,
 727                  &isel))
 728                 return;
 729         store = (GtkListStore *)model;
 730         sel = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &isel);
 731         if (!sel)
 732                 return;
 733
 734         /* no move if we're at row 0... */
 735         prev = gtk_tree_path_copy(sel);
 736         if (!gtk_tree_path_prev(prev)) {
 737                 gtk_tree_path_free(prev);
 738                 gtk_tree_path_free(sel);
 739                 return;
 740         }
 741
 742         gtk_tree_model_get_iter(GTK_TREE_MODEL(store),
 743                                 &iprev, prev);
 744         gtk_tree_path_free(sel);
 745         gtk_tree_path_free(prev);
 746
 747         gtk_list_store_swap(store, &iprev, &isel);
 748         prefs_custom_header_set_list(cur_ac);
 749 }
 750
 751 static void prefs_custom_header_down(void)
 752 {
 753         GtkListStore *store = NULL;
 754         GtkTreeModel *model = NULL;
 755         GtkTreeIter next, sel;
 756
 757         if (!gtk_tree_selection_get_selected
 758                 (gtk_tree_view_get_selection
 759                         (GTK_TREE_VIEW(customhdr.list_view)),
 760                  &model,
 761                  &sel))
 762                 return;
 763         store = (GtkListStore *)model;
 764         next = sel;
 765         if (!gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &next))
 766                 return;
 767
 768         gtk_list_store_swap(store, &next, &sel);
 769         prefs_custom_header_set_list(cur_ac);
 770 }
 771
 772 static gboolean prefs_custom_header_key_pressed(GtkWidget *widget,
 773                                                 GdkEventKey *event,
 774                                                 gpointer data)
 775 {
 776         if (event && event->keyval == GDK_KEY_Escape)
 777                 prefs_custom_header_cancel();
 778         return FALSE;
 779 }
 780
 781 static void prefs_custom_header_ok(void)
 782 {
 783         prefs_custom_header_write_config(cur_ac);
 784         gtk_widget_hide(customhdr.window);
 785         gtk_window_set_modal(GTK_WINDOW(customhdr.window), FALSE);
 786 }
 787
 788 static void prefs_custom_header_cancel(void)
 789 {
 790         prefs_custom_header_read_config(cur_ac);
 791         gtk_widget_hide(customhdr.window);
 792         gtk_window_set_modal(GTK_WINDOW(customhdr.window), FALSE);
 793 }
 794
 795 static gint prefs_custom_header_deleted(GtkWidget *widget, GdkEventAny *event,
 796                                         gpointer data)
 797 {
 798         prefs_custom_header_cancel();
 799         return TRUE;
 800 }
 801
 802 static GtkListStore* prefs_custom_header_create_data_store(void)
 803 {
 804         return gtk_list_store_new(N_CUSTHDR_COLUMNS,
 805                                   G_TYPE_STRING,
 806                                   G_TYPE_POINTER,
 807                                   -1);
 808 }
 809
 810 static void prefs_custom_header_list_view_insert_header(GtkWidget *list_view,
 811                                                         GtkTreeIter *row_iter,
 812                                                         gchar *header,
 813                                                         gpointer data)
 814 {
 815         GtkTreeIter iter;
 816         GtkListStore *list_store = GTK_LIST_STORE(gtk_tree_view_get_model
 817                                         (GTK_TREE_VIEW(list_view)));
 818
 819         if (row_iter == NULL) {
 820                 /* append new */
 821                 gtk_list_store_append(list_store, &iter);
 822                 gtk_list_store_set(list_store, &iter,
 823                                    CUSTHDR_STRING, header,
 824                                    CUSTHDR_DATA,   data,
 825                                    -1);
 826         } else {
 827                 /* change existing */
 828                 CustomHeader *old_data;
 829
 830                 gtk_tree_model_get(GTK_TREE_MODEL(list_store), row_iter,
 831                                    CUSTHDR_DATA, &old_data,
 832                                    -1);
 833
 834                 custom_header_free(old_data);
 835
 836                 gtk_list_store_set(list_store, row_iter,
 837                                    CUSTHDR_STRING, header,
 838                                    CUSTHDR_DATA, data,
 839                                    -1);
 840         }
 841 }
 842
 843 static GtkWidget *prefs_custom_header_list_view_create(void)
 844 {
 845         GtkTreeView *list_view;
 846         GtkTreeSelection *selector;
 847         GtkTreeModel *model;
 848
 849         model = GTK_TREE_MODEL(prefs_custom_header_create_data_store());
 850         list_view = GTK_TREE_VIEW(gtk_tree_view_new_with_model(model));
 851         g_object_unref(model);
 852
 853         gtk_tree_view_set_rules_hint(list_view, prefs_common.use_stripes_everywhere);
 854         gtk_tree_view_set_reorderable(list_view, TRUE);
 855
 856         selector = gtk_tree_view_get_selection(list_view);
 857         gtk_tree_selection_set_mode(selector, GTK_SELECTION_BROWSE);
 858         gtk_tree_selection_set_select_function(selector, prefs_custom_header_selected,
 859                                                NULL, NULL);
 860
 861         /* create the columns */
 862         prefs_custom_header_create_list_view_columns(GTK_WIDGET(list_view));
 863
 864         return GTK_WIDGET(list_view);
 865 }
 866
 867 static void prefs_custom_header_create_list_view_columns(GtkWidget *list_view)
 868 {
 869         GtkTreeViewColumn *column;
 870         GtkCellRenderer *renderer;
 871
 872         renderer = gtk_cell_renderer_text_new();
 873         column = gtk_tree_view_column_new_with_attributes
 874                 (_("Current custom headers"),
 875                  renderer,
 876                  "text", CUSTHDR_STRING,
 877                  NULL);
 878         gtk_tree_view_append_column(GTK_TREE_VIEW(list_view), column);
 879 }
 880
 881 #define ENTRY_SET_TEXT(entry, str) \
 882         gtk_entry_set_text(GTK_ENTRY(entry), str ? str : "")
 883
 884 static gboolean prefs_custom_header_selected(GtkTreeSelection *selector,
 885                                              GtkTreeModel *model,
 886                                              GtkTreePath *path,
 887                                              gboolean currently_selected,
 888                                              gpointer data)
 889 {
 890         GtkTreeIter iter;
 891         CustomHeader *ch;
 892         GtkImage *preview;
 893         GdkPixbuf *pixbuf;
 894         CustomHeader default_ch = { 0, "", NULL };
 895
 896         if (currently_selected)
 897                 return TRUE;
 898
 899         if (!gtk_tree_model_get_iter(model, &iter, path))
 900                 return TRUE;
 901
 902         gtk_tree_model_get(model, &iter,
 903                            CUSTHDR_DATA, &ch,
 904                            -1);
 905
 906         if (!ch) ch = &default_ch;
 907
 908         ENTRY_SET_TEXT(customhdr.hdr_entry, ch->name);
 909         ENTRY_SET_TEXT(customhdr.val_entry, ch->value);
 910         if (!g_strcmp0("Face",ch->name)) {
 911                 preview = GTK_IMAGE(face_get_from_header (ch->value));
 912                 pixbuf = gtk_image_get_pixbuf(preview);
 913                 gtk_image_set_from_pixbuf (GTK_IMAGE(customhdr.preview), pixbuf);
 914                 gtk_widget_show(customhdr.preview);
 915                 g_object_ref_sink (G_OBJECT(preview));
 916         }
 917 #if HAVE_LIBCOMPFACE
 918 else if (!g_strcmp0("X-Face", ch->name)) {
 919                 preview = GTK_IMAGE(xface_get_from_header(ch->value));
 920                 pixbuf = gtk_image_get_pixbuf(preview);
 921                 gtk_image_set_from_pixbuf (GTK_IMAGE(customhdr.preview), pixbuf);
 922                 gtk_widget_show(customhdr.preview);
 923                 g_object_ref_sink (G_OBJECT(preview));
 924         }
 925 #endif
 926 else {
 927                 gtk_widget_hide(customhdr.preview);
 928         }
 929         return TRUE;
 930 }
 931
 932 #undef ENTRY_SET_TEXT