src/messageview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999,2000 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
  50 static void messageview_change_view_type(MessageView    *messageview,
  51                                          MessageType     type);
  52 static void messageview_destroy_cb      (GtkWidget      *widget,
  53                                          MessageView    *messageview);
  54 static void messageview_size_allocate_cb(GtkWidget      *widget,
  55                                          GtkAllocation  *allocation);
  56 static void key_pressed                 (GtkWidget      *widget,
  57                                          GdkEventKey    *event,
  58                                          MessageView    *messageview);
  59
  60 MessageView *messageview_create(void)
  61 {
  62         MessageView *messageview;
  63         GtkWidget *vbox;
  64         HeaderView *headerview;
  65         TextView *textview;
  66         ImageView *imageview;
  67         MimeView *mimeview;
  68
  69         debug_print(_("Creating message view...\n"));
  70         messageview = g_new0(MessageView, 1);
  71
  72         messageview->type = MVIEW_TEXT;
  73
  74         headerview = headerview_create();
  75
  76         textview = textview_create();
  77         textview->messageview = messageview;
  78
  79         imageview = imageview_create();
  80         imageview->messageview = messageview;
  81
  82         mimeview = mimeview_create();
  83         mimeview->textview = textview;
  84         mimeview->imageview = imageview;
  85         mimeview->messageview = messageview;
  86
  87         vbox = gtk_vbox_new(FALSE, 0);
  88         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(headerview),
  89                            FALSE, FALSE, 0);
  90         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(textview),
  91                            TRUE, TRUE, 0);
  92
  93         /* to remove without destroyed */
  94         gtk_widget_ref(GTK_WIDGET_PTR(textview));
  95         gtk_widget_ref(GTK_WIDGET_PTR(imageview));
  96         gtk_widget_ref(GTK_WIDGET_PTR(mimeview));
  97
  98         messageview->vbox       = vbox;
  99         messageview->new_window = FALSE;
 100         messageview->window     = NULL;
 101         messageview->headerview = headerview;
 102         messageview->textview   = textview;
 103         messageview->imageview  = imageview;
 104         messageview->mimeview   = mimeview;
 105
 106         return messageview;
 107 }
 108
 109 MessageView *messageview_create_with_new_window(void)
 110 {
 111         GtkWidget *window;
 112         MessageView *msgview;
 113
 114         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 115         gtk_window_set_title(GTK_WINDOW(window), "Message");
 116         gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
 117         gtk_widget_set_usize(window, prefs_common.msgwin_width,
 118                              prefs_common.msgwin_height);
 119
 120         msgview = messageview_create();
 121
 122         gtk_signal_connect(GTK_OBJECT(window), "size_allocate",
 123                            GTK_SIGNAL_FUNC(messageview_size_allocate_cb),
 124                            msgview);
 125         gtk_signal_connect(GTK_OBJECT(window), "destroy",
 126                            GTK_SIGNAL_FUNC(messageview_destroy_cb), msgview);
 127         gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
 128                            GTK_SIGNAL_FUNC(key_pressed), msgview);
 129
 130         gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET_PTR(msgview));
 131         gtk_widget_grab_focus(msgview->textview->text);
 132         gtk_widget_show_all(window);
 133
 134         msgview->new_window = TRUE;
 135         msgview->window = window;
 136
 137         messageview_init(msgview);
 138
 139         return msgview;
 140 }
 141
 142 void messageview_init(MessageView *messageview)
 143 {
 144         headerview_init(messageview->headerview);
 145         textview_init(messageview->textview);
 146         imageview_init(messageview->imageview);
 147         mimeview_init(messageview->mimeview);
 148         //messageview_set_font(messageview);
 149 }
 150
 151 static void notification_convert_header(gchar *dest, gint len, gchar *src,
 152                                         gint header_len)
 153 {
 154         g_return_if_fail(src != NULL);
 155         g_return_if_fail(dest != NULL);
 156
 157         if (len < 1) return;
 158
 159         remove_return(src);
 160
 161         if (is_ascii_str(src)) {
 162                 strncpy2(dest, src, len);
 163                 dest[len - 1] = '\0';
 164                 return;
 165         } else
 166                 conv_encode_header(dest, len, src, header_len);
 167 }
 168
 169 static gint dispotition_notification_send(MsgInfo * msginfo)
 170 {
 171         gchar buf[BUFFSIZE];
 172         gchar tmp[MAXPATHLEN + 1];
 173         FILE *fp;
 174         GSList * to_list;
 175         gint ok;
 176
 177         /* write to temporary file */
 178         g_snprintf(tmp, sizeof(tmp), "%s%ctmpmsg%d",
 179                    get_rc_dir(), G_DIR_SEPARATOR, (gint)msginfo);
 180
 181         if ((fp = fopen(tmp, "w")) == NULL) {
 182                 FILE_OP_ERROR(tmp, "fopen");
 183                 return -1;
 184         }
 185
 186         /* chmod for security */
 187         if (change_file_mode_rw(fp, tmp) < 0) {
 188                 FILE_OP_ERROR(tmp, "chmod");
 189                 g_warning(_("can't change file mode\n"));
 190         }
 191
 192         /* Date */
 193         get_rfc822_date(buf, sizeof(buf));
 194         fprintf(fp, "Date: %s\n", buf);
 195
 196         /* From */
 197         if (cur_account->name && *cur_account->name) {
 198                 notification_convert_header
 199                         (buf, sizeof(buf), cur_account->name,
 200                          strlen("From: "));
 201                 fprintf(fp, "From: %s <%s>\n", buf, cur_account->address);
 202         } else
 203                 fprintf(fp, "From: %s\n", cur_account->address);
 204
 205         /* To */
 206         fprintf(fp, "To: %s\n", msginfo->dispositionnotificationto);
 207
 208         /* Subject */
 209         notification_convert_header(buf, sizeof(buf), msginfo->subject,
 210                                     strlen("Subject: "));
 211         fprintf(fp, "Subject: Disposition notification: %s\n", buf);
 212
 213         if (fclose(fp) == EOF) {
 214                 FILE_OP_ERROR(tmp, "fclose");
 215                 unlink(tmp);
 216                 return -1;
 217         }
 218
 219         to_list = address_list_append(NULL, msginfo->dispositionnotificationto);
 220         ok = send_message(tmp, cur_account, to_list);
 221
 222         if (unlink(tmp) < 0) FILE_OP_ERROR(tmp, "unlink");
 223
 224         return ok;
 225 }
 226
 227 void messageview_show(MessageView *messageview, MsgInfo *msginfo)
 228 {
 229         FILE *fp;
 230         gchar *file;
 231         MimeInfo *mimeinfo;
 232         MsgInfo *tmpmsginfo;
 233
 234         g_return_if_fail(msginfo != NULL);
 235
 236 #if USE_GPGME
 237         for (;;) {
 238                 if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 239                 mimeinfo = procmime_scan_mime_header(fp);
 240                 if (!mimeinfo) break;
 241
 242                 if (!MSG_IS_ENCRYPTED(msginfo->flags) &&
 243                     rfc2015_is_encrypted(mimeinfo)) {
 244                         MSG_SET_FLAGS(msginfo->flags, MSG_ENCRYPTED);
 245                 }
 246                 if (MSG_IS_ENCRYPTED(msginfo->flags) &&
 247                     !msginfo->plaintext_file  &&
 248                     !msginfo->decryption_failed) {
 249                         /* This is an encrypted message but it has not yet
 250                          * been decrypted and there was no unsuccessful
 251                          * decryption attempt */
 252                         rfc2015_decrypt_message(msginfo, mimeinfo, fp);
 253                         if (msginfo->plaintext_file &&
 254                             !msginfo->decryption_failed) {
 255                                 fclose(fp);
 256                                 continue;
 257                         }
 258                 }
 259
 260                 break;
 261         }
 262 #else /* !USE_GPGME */
 263         if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 264         mimeinfo = procmime_scan_mime_header(fp);
 265 #endif /* USE_GPGME */
 266         fclose(fp);
 267         if (!mimeinfo) return;
 268
 269         file = procmsg_get_message_file_path(msginfo);
 270         g_return_if_fail(file != NULL);
 271
 272         tmpmsginfo = procheader_parse(file, msginfo->flags, TRUE);
 273
 274         if (prefs_common.return_receipt
 275             && tmpmsginfo->dispositionnotificationto
 276             && (MSG_IS_UNREAD(msginfo->flags))) {
 277                 gint ok;
 278
 279                 if (alertpanel(_("Return Receipt"), _("Send return receipt ?"),
 280                                _("Yes"), _("No"), NULL) == G_ALERTDEFAULT) {
 281                         ok = dispotition_notification_send(tmpmsginfo);
 282                         if (ok < 0)
 283                                 alertpanel_error(_("Error occurred while sending notification."));
 284                 }
 285         }
 286
 287         headerview_show(messageview->headerview, tmpmsginfo);
 288         procmsg_msginfo_free(tmpmsginfo);
 289
 290         if (mimeinfo->mime_type != MIME_TEXT) {
 291                 messageview_change_view_type(messageview, MVIEW_MIME);
 292                 mimeview_show_message(messageview->mimeview, mimeinfo, file);
 293         } else {
 294                 messageview_change_view_type(messageview, MVIEW_TEXT);
 295                 textview_show_message(messageview->textview, mimeinfo, file);
 296                 procmime_mimeinfo_free(mimeinfo);
 297         }
 298
 299         g_free(file);
 300 }
 301
 302 static void messageview_change_view_type(MessageView *messageview,
 303                                          MessageType type)
 304 {
 305         TextView *textview = messageview->textview;
 306         ImageView *imageview = messageview->imageview;
 307         MimeView *mimeview = messageview->mimeview;
 308
 309         if (messageview->type == type) return;
 310
 311         if (type == MVIEW_MIME) {
 312                 gtk_container_remove
 313                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 314                          GTK_WIDGET_PTR(textview));
 315                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 316                                    GTK_WIDGET_PTR(mimeview), TRUE, TRUE, 0);
 317                 gtk_container_add(GTK_CONTAINER(mimeview->vbox),
 318                                   GTK_WIDGET_PTR(textview));
 319                 mimeview->type = MIMEVIEW_TEXT;
 320         } else if (type == MVIEW_TEXT) {
 321                 gtk_container_remove
 322                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 323                          GTK_WIDGET_PTR(mimeview));
 324
 325                 if (mimeview->vbox == GTK_WIDGET_PTR(textview)->parent) {
 326                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 327                                              GTK_WIDGET_PTR(textview));
 328                 } else {
 329                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 330                                              GTK_WIDGET_PTR(imageview));
 331                 }
 332
 333                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 334                                    GTK_WIDGET_PTR(textview), TRUE, TRUE, 0);
 335         } else
 336                 return;
 337
 338         messageview->type = type;
 339 }
 340
 341 void messageview_clear(MessageView *messageview)
 342 {
 343         messageview_change_view_type(messageview, MVIEW_TEXT);
 344         headerview_clear(messageview->headerview);
 345         textview_clear(messageview->textview);
 346 }
 347
 348 void messageview_destroy(MessageView *messageview)
 349 {
 350         GtkWidget *textview  = GTK_WIDGET_PTR(messageview->textview);
 351         GtkWidget *imageview = GTK_WIDGET_PTR(messageview->imageview);
 352         GtkWidget *mimeview  = GTK_WIDGET_PTR(messageview->mimeview);
 353
 354         headerview_destroy(messageview->headerview);
 355         textview_destroy(messageview->textview);
 356         imageview_destroy(messageview->imageview);
 357         mimeview_destroy(messageview->mimeview);
 358
 359         g_free(messageview);
 360
 361         gtk_widget_unref(textview);
 362         gtk_widget_unref(imageview);
 363         gtk_widget_unref(mimeview);
 364 }
 365
 366 void messageview_quote_color_set(void)
 367 {
 368 }
 369
 370 void messageview_set_font(MessageView *messageview)
 371 {
 372         textview_set_font(messageview->textview, NULL);
 373 }
 374
 375 void messageview_copy_clipboard(MessageView *messageview)
 376 {
 377         if (messageview->type == MVIEW_TEXT)
 378                 gtk_editable_copy_clipboard
 379                         (GTK_EDITABLE(messageview->textview->text));
 380 }
 381
 382 void messageview_select_all(MessageView *messageview)
 383 {
 384         if (messageview->type == MVIEW_TEXT)
 385                 gtk_editable_select_region
 386                         (GTK_EDITABLE(messageview->textview->text), 0, -1);
 387 }
 388
 389 GtkWidget *messageview_get_text_widget(MessageView *messageview)
 390 {
 391         return messageview->textview->text;
 392 }
 393
 394 static void messageview_destroy_cb(GtkWidget *widget, MessageView *messageview)
 395 {
 396         messageview_destroy(messageview);
 397 }
 398
 399 static void messageview_size_allocate_cb(GtkWidget *widget,
 400                                          GtkAllocation *allocation)
 401 {
 402         g_return_if_fail(allocation != NULL);
 403
 404         prefs_common.msgwin_width  = allocation->width;
 405         prefs_common.msgwin_height = allocation->height;
 406 }
 407
 408 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 409                         MessageView *messageview)
 410 {
 411         if (event && event->keyval == GDK_Escape && messageview->window)
 412                 gtk_widget_destroy(messageview->window);
 413 }