src/messageview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   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 2 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, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "defs.h"
  21
  22 #include <glib.h>
  23 #include <gdk/gdkkeysyms.h>
  24 #include <gtk/gtkvbox.h>
  25 #include <gtk/gtkcontainer.h>
  26 #include <gtk/gtkeditable.h>
  27 #include <gtk/gtkwindow.h>
  28 #include <gtk/gtktext.h>
  29 #include <stdio.h>
  30 #include <ctype.h>
  31 #include <string.h>
  32
  33 #include "intl.h"
  34 #include "main.h"
  35 #include "messageview.h"
  36 #include "headerview.h"
  37 #include "textview.h"
  38 #include "imageview.h"
  39 #include "mimeview.h"
  40 #include "procmsg.h"
  41 #include "procheader.h"
  42 #include "procmime.h"
  43 #include "prefs_common.h"
  44 #include "gtkutils.h"
  45 #include "utils.h"
  46 #include "rfc2015.h"
  47 #include "account.h"
  48 #include "alertpanel.h"
  49 #include "send.h"
  50 #include "pgptext.h"
  51
  52 static void messageview_change_view_type(MessageView    *messageview,
  53                                          MessageType     type);
  54 static void messageview_destroy_cb      (GtkWidget      *widget,
  55                                          MessageView    *messageview);
  56 static void messageview_size_allocate_cb(GtkWidget      *widget,
  57                                          GtkAllocation  *allocation);
  58 static void key_pressed                 (GtkWidget      *widget,
  59                                          GdkEventKey    *event,
  60                                          MessageView    *messageview);
  61
  62 MessageView *messageview_create(void)
  63 {
  64         MessageView *messageview;
  65         GtkWidget *vbox;
  66         HeaderView *headerview;
  67         TextView *textview;
  68         ImageView *imageview;
  69         MimeView *mimeview;
  70
  71         debug_print(_("Creating message view...\n"));
  72         messageview = g_new0(MessageView, 1);
  73
  74         messageview->type = MVIEW_TEXT;
  75
  76         headerview = headerview_create();
  77
  78         textview = textview_create();
  79         textview->messageview = messageview;
  80
  81         imageview = imageview_create();
  82         imageview->messageview = messageview;
  83
  84         mimeview = mimeview_create();
  85         mimeview->textview = textview;
  86         mimeview->imageview = imageview;
  87         mimeview->messageview = messageview;
  88
  89         vbox = gtk_vbox_new(FALSE, 0);
  90         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(headerview),
  91                            FALSE, FALSE, 0);
  92         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(textview),
  93                            TRUE, TRUE, 0);
  94
  95         /* to remove without destroyed */
  96         gtk_widget_ref(GTK_WIDGET_PTR(textview));
  97         gtk_widget_ref(GTK_WIDGET_PTR(imageview));
  98         gtk_widget_ref(GTK_WIDGET_PTR(mimeview));
  99
 100         messageview->vbox       = vbox;
 101         messageview->new_window = FALSE;
 102         messageview->window     = NULL;
 103         messageview->headerview = headerview;
 104         messageview->textview   = textview;
 105         messageview->imageview  = imageview;
 106         messageview->mimeview   = mimeview;
 107
 108         return messageview;
 109 }
 110
 111 MessageView *messageview_create_with_new_window(void)
 112 {
 113         GtkWidget *window;
 114         MessageView *msgview;
 115
 116         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 117         gtk_window_set_title(GTK_WINDOW(window), "Message");
 118         gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
 119         gtk_widget_set_usize(window, prefs_common.msgwin_width,
 120                              prefs_common.msgwin_height);
 121
 122         msgview = messageview_create();
 123
 124         gtk_signal_connect(GTK_OBJECT(window), "size_allocate",
 125                            GTK_SIGNAL_FUNC(messageview_size_allocate_cb),
 126                            msgview);
 127         gtk_signal_connect(GTK_OBJECT(window), "destroy",
 128                            GTK_SIGNAL_FUNC(messageview_destroy_cb), msgview);
 129         gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
 130                            GTK_SIGNAL_FUNC(key_pressed), msgview);
 131
 132         gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET_PTR(msgview));
 133         gtk_widget_grab_focus(msgview->textview->text);
 134         gtk_widget_show_all(window);
 135
 136         msgview->new_window = TRUE;
 137         msgview->window = window;
 138
 139         messageview_init(msgview);
 140
 141         return msgview;
 142 }
 143
 144 void messageview_init(MessageView *messageview)
 145 {
 146         headerview_init(messageview->headerview);
 147         textview_init(messageview->textview);
 148         imageview_init(messageview->imageview);
 149         mimeview_init(messageview->mimeview);
 150         /*messageview_set_font(messageview);*/
 151 }
 152
 153 static void notification_convert_header(gchar *dest, gint len, gchar *src,
 154                                         gint header_len)
 155 {
 156         g_return_if_fail(src != NULL);
 157         g_return_if_fail(dest != NULL);
 158
 159         if (len < 1) return;
 160
 161         remove_return(src);
 162
 163         if (is_ascii_str(src)) {
 164                 strncpy2(dest, src, len);
 165                 dest[len - 1] = '\0';
 166                 return;
 167         } else
 168                 conv_encode_header(dest, len, src, header_len);
 169 }
 170
 171 static gint disposition_notification_queue(PrefsAccount * account,
 172                                            gchar * to, const gchar *file)
 173 {
 174         FolderItem *queue;
 175         gchar *tmp, *queue_path;
 176         FILE *fp, *src_fp;
 177         GSList *cur;
 178         gchar buf[BUFFSIZE];
 179         gint num;
 180
 181         debug_print(_("queueing message...\n"));
 182         g_return_val_if_fail(account != NULL, -1);
 183
 184         tmp = g_strdup_printf("%s%cqueue.%d", g_get_tmp_dir(),
 185                               G_DIR_SEPARATOR, (gint)file);
 186         if ((fp = fopen(tmp, "w")) == NULL) {
 187                 FILE_OP_ERROR(tmp, "fopen");
 188                 g_free(tmp);
 189                 return -1;
 190         }
 191         if ((src_fp = fopen(file, "r")) == NULL) {
 192                 FILE_OP_ERROR(file, "fopen");
 193                 fclose(fp);
 194                 unlink(tmp);
 195                 g_free(tmp);
 196                 return -1;
 197         }
 198         if (change_file_mode_rw(fp, tmp) < 0) {
 199                 FILE_OP_ERROR(tmp, "chmod");
 200                 g_warning(_("can't change file mode\n"));
 201         }
 202
 203         /* queueing variables */
 204         fprintf(fp, "AF:\n");
 205         fprintf(fp, "NF:0\n");
 206         fprintf(fp, "PS:10\n");
 207         fprintf(fp, "SRH:1\n");
 208         fprintf(fp, "SFN:\n");
 209         fprintf(fp, "DSR:\n");
 210         fprintf(fp, "MID:\n");
 211         fprintf(fp, "CFG:\n");
 212         fprintf(fp, "PT:0\n");
 213         fprintf(fp, "S:%s\n", account->address);
 214         fprintf(fp, "RQ:\n");
 215         if (account->smtp_server)
 216                 fprintf(fp, "SSV:%s\n", account->smtp_server);
 217         else
 218                 fprintf(fp, "SSV:\n");
 219         if (account->nntp_server)
 220                 fprintf(fp, "NSV:%s\n", account->nntp_server);
 221         else
 222                 fprintf(fp, "NSV:\n");
 223         fprintf(fp, "SSH:\n");
 224         fprintf(fp, "R:<%s>", to);
 225         fprintf(fp, "\n");
 226         fprintf(fp, "\n");
 227
 228         while (fgets(buf, sizeof(buf), src_fp) != NULL) {
 229                 if (fputs(buf, fp) == EOF) {
 230                         FILE_OP_ERROR(tmp, "fputs");
 231                         fclose(fp);
 232                         fclose(src_fp);
 233                         unlink(tmp);
 234                         g_free(tmp);
 235                         return -1;
 236                 }
 237         }
 238
 239         fclose(src_fp);
 240         if (fclose(fp) == EOF) {
 241                 FILE_OP_ERROR(tmp, "fclose");
 242                 unlink(tmp);
 243                 g_free(tmp);
 244                 return -1;
 245         }
 246
 247         queue = folder_get_default_queue();
 248         folder_item_scan(queue);
 249         queue_path = folder_item_get_path(queue);
 250         if (!is_dir_exist(queue_path))
 251                 make_dir_hier(queue_path);
 252         if ((num = folder_item_add_msg(queue, tmp, TRUE)) < 0) {
 253                 g_warning(_("can't queue the message\n"));
 254                 unlink(tmp);
 255                 g_free(tmp);
 256                 g_free(queue_path);
 257                 return -1;
 258         }
 259         g_free(tmp);
 260
 261         if ((fp = procmsg_open_mark_file(queue_path, TRUE)) == NULL)
 262                 g_warning(_("can't open mark file\n"));
 263         else {
 264                 MsgInfo newmsginfo;
 265
 266                 newmsginfo.msgnum = num;
 267                 newmsginfo.flags.perm_flags = newmsginfo.flags.tmp_flags = 0;
 268                 procmsg_write_flags(&newmsginfo, fp);
 269                 fclose(fp);
 270         }
 271         g_free(queue_path);
 272
 273         folder_item_scan(queue);
 274         folderview_update_item(queue, TRUE);
 275
 276         return 0;
 277 }
 278
 279 static gint disposition_notification_send(MsgInfo * msginfo)
 280 {
 281         gchar buf[BUFFSIZE];
 282         gchar tmp[MAXPATHLEN + 1];
 283         FILE *fp;
 284         GSList * to_list;
 285         gint ok;
 286         gchar * to;
 287
 288         if ((!msginfo->returnreceiptto) &&
 289             (!msginfo->dispositionnotificationto))
 290                 return -1;
 291
 292         /* write to temporary file */
 293         g_snprintf(tmp, sizeof(tmp), "%s%ctmpmsg%d",
 294                    get_rc_dir(), G_DIR_SEPARATOR, (gint)msginfo);
 295
 296         if ((fp = fopen(tmp, "w")) == NULL) {
 297                 FILE_OP_ERROR(tmp, "fopen");
 298                 return -1;
 299         }
 300
 301         /* chmod for security */
 302         if (change_file_mode_rw(fp, tmp) < 0) {
 303                 FILE_OP_ERROR(tmp, "chmod");
 304                 g_warning(_("can't change file mode\n"));
 305         }
 306
 307         /* Date */
 308         get_rfc822_date(buf, sizeof(buf));
 309         fprintf(fp, "Date: %s\n", buf);
 310
 311         /* From */
 312         if (cur_account->name && *cur_account->name) {
 313                 notification_convert_header
 314                         (buf, sizeof(buf), cur_account->name,
 315                          strlen("From: "));
 316                 fprintf(fp, "From: %s <%s>\n", buf, cur_account->address);
 317         } else
 318                 fprintf(fp, "From: %s\n", cur_account->address);
 319
 320         /* To */
 321         if (msginfo->dispositionnotificationto)
 322                 to = msginfo->dispositionnotificationto;
 323         else
 324                 to = msginfo->returnreceiptto;
 325         fprintf(fp, "To: %s\n", to);
 326
 327         /* Subject */
 328         notification_convert_header(buf, sizeof(buf), msginfo->subject,
 329                                     strlen("Subject: "));
 330         fprintf(fp, "Subject: Disposition notification: %s\n", buf);
 331
 332         if (fclose(fp) == EOF) {
 333                 FILE_OP_ERROR(tmp, "fclose");
 334                 unlink(tmp);
 335                 return -1;
 336         }
 337
 338         to_list = address_list_append(NULL, msginfo->dispositionnotificationto);
 339         ok = send_message(tmp, cur_account, to_list);
 340
 341         if (ok < 0) {
 342                 if (prefs_common.queue_msg) {
 343                         AlertValue val;
 344
 345                         val = alertpanel
 346                                 (_("Queueing"),
 347                                  _("Error occurred while sending the notification.\n"
 348                                    "Put this notification into queue folder?"),
 349                                  _("OK"), _("Cancel"), NULL);
 350                         if (G_ALERTDEFAULT == val) {
 351                                 ok = disposition_notification_queue(cur_account, to, tmp);
 352                                 if (ok < 0)
 353                                         alertpanel_error(_("Can't queue the notification."));
 354                         }
 355                 } else
 356                         alertpanel_error(_("Error occurred while sending the notification."));
 357         }
 358
 359         if (unlink(tmp) < 0) FILE_OP_ERROR(tmp, "unlink");
 360
 361         return ok;
 362 }
 363
 364 void messageview_show(MessageView *messageview, MsgInfo *msginfo)
 365 {
 366         FILE *fp;
 367         gchar *file;
 368         MimeInfo *mimeinfo;
 369         MsgInfo *tmpmsginfo;
 370
 371         g_return_if_fail(msginfo != NULL);
 372
 373 #if USE_GPGME
 374         for (;;) {
 375                 if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 376                 mimeinfo = procmime_scan_mime_header(fp);
 377                 if (!mimeinfo) break;
 378
 379                 if (!MSG_IS_ENCRYPTED(msginfo->flags) &&
 380                     rfc2015_is_encrypted(mimeinfo)) {
 381                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_ENCRYPTED);
 382                 }
 383                 if (!MSG_IS_ENCRYPTED(msginfo->flags) &&
 384                     pgptext_is_encrypted(mimeinfo, msginfo)) {
 385                         MSG_SET_TMP_FLAGS(msginfo->flags, MSG_ENCRYPTED);
 386                         /* To avoid trouble with the rfc2015 stuff we go for encryption
 387                          * right here. */
 388                         if (MSG_IS_ENCRYPTED(msginfo->flags) &&
 389                             !msginfo->plaintext_file  &&
 390                             !msginfo->decryption_failed) {
 391                                 /* This is an encrypted message but it has not yet
 392                                  * been decrypted and there was no unsuccessful
 393                                  * decryption attempt */
 394                                 pgptext_decrypt_message(msginfo, mimeinfo, fp);
 395                                 if (msginfo->plaintext_file &&
 396                                     !msginfo->decryption_failed) {
 397                                         fclose(fp);
 398                                         continue;
 399                                 }
 400                         }
 401                 }
 402
 403                 if (MSG_IS_ENCRYPTED(msginfo->flags) &&
 404                     !msginfo->plaintext_file  &&
 405                     !msginfo->decryption_failed) {
 406                         /* This is an encrypted message but it has not yet
 407                          * been decrypted and there was no unsuccessful
 408                          * decryption attempt */
 409                         rfc2015_decrypt_message(msginfo, mimeinfo, fp);
 410                         if (msginfo->plaintext_file &&
 411                             !msginfo->decryption_failed) {
 412                                 fclose(fp);
 413                                 continue;
 414                         }
 415                 }
 416
 417                 break;
 418         }
 419 #else /* !USE_GPGME */
 420         if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 421         mimeinfo = procmime_scan_mime_header(fp);
 422 #endif /* USE_GPGME */
 423         fclose(fp);
 424         if (!mimeinfo) return;
 425
 426         file = procmsg_get_message_file_path(msginfo);
 427         g_return_if_fail(file != NULL);
 428
 429         /* FIXME - doesn't tmpmsginfo->flags have the value
 430          * of msginfo->flags after procheader_parse()???
 431          * in any case, checking tmpmsginfo->flags for MSG_UNREAD
 432          * fixes the return-receipt-request bug */
 433
 434         tmpmsginfo = procheader_parse(file, msginfo->flags, TRUE);
 435
 436         if (prefs_common.return_receipt
 437             && (tmpmsginfo->dispositionnotificationto
 438                 || tmpmsginfo->returnreceiptto)
 439             && (MSG_IS_UNREAD(msginfo->flags))) {
 440                 gint ok;
 441
 442                 if (alertpanel(_("Return Receipt"), _("Send return receipt ?"),
 443                                _("Yes"), _("No"), NULL) == G_ALERTDEFAULT) {
 444                         ok = disposition_notification_send(tmpmsginfo);
 445                         if (ok < 0)
 446                                 alertpanel_error(_("Error occurred while sending notification."));
 447                 }
 448         }
 449
 450         headerview_show(messageview->headerview, tmpmsginfo);
 451         procmsg_msginfo_free(tmpmsginfo);
 452
 453         if (mimeinfo->mime_type != MIME_TEXT) {
 454                 messageview_change_view_type(messageview, MVIEW_MIME);
 455                 mimeview_show_message(messageview->mimeview, mimeinfo, file);
 456         } else {
 457                 messageview_change_view_type(messageview, MVIEW_TEXT);
 458                 textview_show_message(messageview->textview, mimeinfo, file);
 459                 procmime_mimeinfo_free(mimeinfo);
 460         }
 461
 462         g_free(file);
 463 }
 464
 465 static void messageview_change_view_type(MessageView *messageview,
 466                                          MessageType type)
 467 {
 468         TextView *textview = messageview->textview;
 469         ImageView *imageview = messageview->imageview;
 470         MimeView *mimeview = messageview->mimeview;
 471
 472         if (messageview->type == type) return;
 473
 474         if (type == MVIEW_MIME) {
 475                 gtk_editable_claim_selection(GTK_EDITABLE(textview->text),
 476                                              FALSE, GDK_CURRENT_TIME);
 477                 gtk_container_remove
 478                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 479                          GTK_WIDGET_PTR(textview));
 480                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 481                                    GTK_WIDGET_PTR(mimeview), TRUE, TRUE, 0);
 482                 gtk_container_add(GTK_CONTAINER(mimeview->vbox),
 483                                   GTK_WIDGET_PTR(textview));
 484                 mimeview->type = MIMEVIEW_TEXT;
 485         } else if (type == MVIEW_TEXT) {
 486                 gtk_editable_claim_selection(GTK_EDITABLE(textview->text),
 487                                              FALSE, GDK_CURRENT_TIME);
 488                 gtk_container_remove
 489                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 490                          GTK_WIDGET_PTR(mimeview));
 491
 492                 if (mimeview->vbox == GTK_WIDGET_PTR(textview)->parent) {
 493                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 494                                              GTK_WIDGET_PTR(textview));
 495                 } else {
 496                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 497                                              GTK_WIDGET_PTR(imageview));
 498                 }
 499
 500                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 501                                    GTK_WIDGET_PTR(textview), TRUE, TRUE, 0);
 502         } else
 503                 return;
 504
 505         messageview->type = type;
 506 }
 507
 508 void messageview_clear(MessageView *messageview)
 509 {
 510         messageview_change_view_type(messageview, MVIEW_TEXT);
 511         headerview_clear(messageview->headerview);
 512         textview_clear(messageview->textview);
 513 }
 514
 515 void messageview_destroy(MessageView *messageview)
 516 {
 517         GtkWidget *textview  = GTK_WIDGET_PTR(messageview->textview);
 518         GtkWidget *imageview = GTK_WIDGET_PTR(messageview->imageview);
 519         GtkWidget *mimeview  = GTK_WIDGET_PTR(messageview->mimeview);
 520
 521         headerview_destroy(messageview->headerview);
 522         textview_destroy(messageview->textview);
 523         imageview_destroy(messageview->imageview);
 524         mimeview_destroy(messageview->mimeview);
 525
 526         g_free(messageview);
 527
 528         gtk_widget_unref(textview);
 529         gtk_widget_unref(imageview);
 530         gtk_widget_unref(mimeview);
 531 }
 532
 533 void messageview_quote_color_set(void)
 534 {
 535 }
 536
 537 void messageview_set_font(MessageView *messageview)
 538 {
 539         textview_set_font(messageview->textview, NULL);
 540 }
 541
 542 void messageview_copy_clipboard(MessageView *messageview)
 543 {
 544         if (messageview->type == MVIEW_TEXT)
 545                 gtk_editable_copy_clipboard
 546                         (GTK_EDITABLE(messageview->textview->text));
 547 }
 548
 549 void messageview_select_all(MessageView *messageview)
 550 {
 551         if (messageview->type == MVIEW_TEXT)
 552                 gtk_editable_select_region
 553                         (GTK_EDITABLE(messageview->textview->text), 0, -1);
 554 }
 555
 556 void messageview_set_position(MessageView *messageview, gint pos)
 557 {
 558         if (messageview->type == MVIEW_TEXT)
 559                 textview_set_position(messageview->textview, pos);
 560 }
 561
 562 gboolean messageview_search_string(MessageView *messageview, const gchar *str,
 563                                    gboolean case_sens)
 564 {
 565         if (messageview->type == MVIEW_TEXT)
 566                 return textview_search_string(messageview->textview,
 567                                               str, case_sens);
 568         return FALSE;
 569 }
 570
 571 gboolean messageview_search_string_backward(MessageView *messageview,
 572                                             const gchar *str,
 573                                             gboolean case_sens)
 574 {
 575         if (messageview->type == MVIEW_TEXT)
 576                 return textview_search_string_backward(messageview->textview,
 577                                                        str, case_sens);
 578         return FALSE;
 579 }
 580
 581 GtkWidget *messageview_get_text_widget(MessageView *messageview)
 582 {
 583         return messageview->textview->text;
 584 }
 585
 586 static void messageview_destroy_cb(GtkWidget *widget, MessageView *messageview)
 587 {
 588         messageview_destroy(messageview);
 589 }
 590
 591 static void messageview_size_allocate_cb(GtkWidget *widget,
 592                                          GtkAllocation *allocation)
 593 {
 594         g_return_if_fail(allocation != NULL);
 595
 596         prefs_common.msgwin_width  = allocation->width;
 597         prefs_common.msgwin_height = allocation->height;
 598 }
 599
 600 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 601                         MessageView *messageview)
 602 {
 603         if (event && event->keyval == GDK_Escape && messageview->window)
 604                 gtk_widget_destroy(messageview->window);
 605 }