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");
 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");
 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