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 #include "send.h"
  50
  51 static void messageview_change_view_type(MessageView    *messageview,
  52                                          MessageType     type);
  53 static void messageview_destroy_cb      (GtkWidget      *widget,
  54                                          MessageView    *messageview);
  55 static void messageview_size_allocate_cb(GtkWidget      *widget,
  56                                          GtkAllocation  *allocation);
  57 static void key_pressed                 (GtkWidget      *widget,
  58                                          GdkEventKey    *event,
  59                                          MessageView    *messageview);
  60
  61 MessageView *messageview_create(void)
  62 {
  63         MessageView *messageview;
  64         GtkWidget *vbox;
  65         HeaderView *headerview;
  66         TextView *textview;
  67         ImageView *imageview;
  68         MimeView *mimeview;
  69
  70         debug_print(_("Creating message view...\n"));
  71         messageview = g_new0(MessageView, 1);
  72
  73         messageview->type = MVIEW_TEXT;
  74
  75         headerview = headerview_create();
  76
  77         textview = textview_create();
  78         textview->messageview = messageview;
  79
  80         imageview = imageview_create();
  81         imageview->messageview = messageview;
  82
  83         mimeview = mimeview_create();
  84         mimeview->textview = textview;
  85         mimeview->imageview = imageview;
  86         mimeview->messageview = messageview;
  87
  88         vbox = gtk_vbox_new(FALSE, 0);
  89         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(headerview),
  90                            FALSE, FALSE, 0);
  91         gtk_box_pack_start(GTK_BOX(vbox), GTK_WIDGET_PTR(textview),
  92                            TRUE, TRUE, 0);
  93
  94         /* to remove without destroyed */
  95         gtk_widget_ref(GTK_WIDGET_PTR(textview));
  96         gtk_widget_ref(GTK_WIDGET_PTR(imageview));
  97         gtk_widget_ref(GTK_WIDGET_PTR(mimeview));
  98
  99         messageview->vbox       = vbox;
 100         messageview->new_window = FALSE;
 101         messageview->window     = NULL;
 102         messageview->headerview = headerview;
 103         messageview->textview   = textview;
 104         messageview->imageview  = imageview;
 105         messageview->mimeview   = mimeview;
 106
 107         return messageview;
 108 }
 109
 110 MessageView *messageview_create_with_new_window(void)
 111 {
 112         GtkWidget *window;
 113         MessageView *msgview;
 114
 115         window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 116         gtk_window_set_title(GTK_WINDOW(window), "Message");
 117         gtk_window_set_policy(GTK_WINDOW(window), TRUE, TRUE, FALSE);
 118         gtk_widget_set_usize(window, prefs_common.msgwin_width,
 119                              prefs_common.msgwin_height);
 120
 121         msgview = messageview_create();
 122
 123         gtk_signal_connect(GTK_OBJECT(window), "size_allocate",
 124                            GTK_SIGNAL_FUNC(messageview_size_allocate_cb),
 125                            msgview);
 126         gtk_signal_connect(GTK_OBJECT(window), "destroy",
 127                            GTK_SIGNAL_FUNC(messageview_destroy_cb), msgview);
 128         gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
 129                            GTK_SIGNAL_FUNC(key_pressed), msgview);
 130
 131         gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET_PTR(msgview));
 132         gtk_widget_grab_focus(msgview->textview->text);
 133         gtk_widget_show_all(window);
 134
 135         msgview->new_window = TRUE;
 136         msgview->window = window;
 137
 138         messageview_init(msgview);
 139
 140         return msgview;
 141 }
 142
 143 void messageview_init(MessageView *messageview)
 144 {
 145         headerview_init(messageview->headerview);
 146         textview_init(messageview->textview);
 147         imageview_init(messageview->imageview);
 148         mimeview_init(messageview->mimeview);
 149         //messageview_set_font(messageview);
 150 }
 151
 152 static void notification_convert_header(gchar *dest, gint len, gchar *src,
 153                                         gint header_len)
 154 {
 155         g_return_if_fail(src != NULL);
 156         g_return_if_fail(dest != NULL);
 157
 158         if (len < 1) return;
 159
 160         remove_return(src);
 161
 162         if (is_ascii_str(src)) {
 163                 strncpy2(dest, src, len);
 164                 dest[len - 1] = '\0';
 165                 return;
 166         } else
 167                 conv_encode_header(dest, len, src, header_len);
 168 }
 169
 170 static gint dispotition_notification_send(MsgInfo * msginfo)
 171 {
 172         gchar buf[BUFFSIZE];
 173         gchar tmp[MAXPATHLEN + 1];
 174         FILE *fp;
 175         GSList * to_list;
 176         gint ok;
 177
 178         if ((!msginfo->returnreceiptto) &&
 179             (!msginfo->dispositionnotificationto))
 180                 return -1;
 181
 182         /* write to temporary file */
 183         g_snprintf(tmp, sizeof(tmp), "%s%ctmpmsg%d",
 184                    get_rc_dir(), G_DIR_SEPARATOR, (gint)msginfo);
 185
 186         if ((fp = fopen(tmp, "w")) == NULL) {
 187                 FILE_OP_ERROR(tmp, "fopen");
 188                 return -1;
 189         }
 190
 191         /* chmod for security */
 192         if (change_file_mode_rw(fp, tmp) < 0) {
 193                 FILE_OP_ERROR(tmp, "chmod");
 194                 g_warning(_("can't change file mode\n"));
 195         }
 196
 197         /* Date */
 198         get_rfc822_date(buf, sizeof(buf));
 199         fprintf(fp, "Date: %s\n", buf);
 200
 201         /* From */
 202         if (cur_account->name && *cur_account->name) {
 203                 notification_convert_header
 204                         (buf, sizeof(buf), cur_account->name,
 205                          strlen("From: "));
 206                 fprintf(fp, "From: %s <%s>\n", buf, cur_account->address);
 207         } else
 208                 fprintf(fp, "From: %s\n", cur_account->address);
 209
 210         /* To */
 211         if (msginfo->dispositionnotificationto)
 212                 fprintf(fp, "To: %s\n", msginfo->dispositionnotificationto);
 213         else
 214                 fprintf(fp, "To: %s\n", msginfo->returnreceiptto);
 215
 216         /* Subject */
 217         notification_convert_header(buf, sizeof(buf), msginfo->subject,
 218                                     strlen("Subject: "));
 219         fprintf(fp, "Subject: Disposition notification: %s\n", buf);
 220
 221         if (fclose(fp) == EOF) {
 222                 FILE_OP_ERROR(tmp, "fclose");
 223                 unlink(tmp);
 224                 return -1;
 225         }
 226
 227         to_list = address_list_append(NULL, msginfo->dispositionnotificationto);
 228         ok = send_message(tmp, cur_account, to_list);
 229
 230         if (unlink(tmp) < 0) FILE_OP_ERROR(tmp, "unlink");
 231
 232         return ok;
 233 }
 234
 235 void messageview_show(MessageView *messageview, MsgInfo *msginfo)
 236 {
 237         FILE *fp;
 238         gchar *file;
 239         MimeInfo *mimeinfo;
 240         MsgInfo *tmpmsginfo;
 241
 242         g_return_if_fail(msginfo != NULL);
 243
 244 #if USE_GPGME
 245         for (;;) {
 246                 if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 247                 mimeinfo = procmime_scan_mime_header(fp);
 248                 if (!mimeinfo) break;
 249
 250                 if (!MSG_IS_ENCRYPTED(msginfo->flags) &&
 251                     rfc2015_is_encrypted(mimeinfo)) {
 252                         MSG_SET_FLAGS(msginfo->flags, MSG_ENCRYPTED);
 253                 }
 254                 if (MSG_IS_ENCRYPTED(msginfo->flags) &&
 255                     !msginfo->plaintext_file  &&
 256                     !msginfo->decryption_failed) {
 257                         /* This is an encrypted message but it has not yet
 258                          * been decrypted and there was no unsuccessful
 259                          * decryption attempt */
 260                         rfc2015_decrypt_message(msginfo, mimeinfo, fp);
 261                         if (msginfo->plaintext_file &&
 262                             !msginfo->decryption_failed) {
 263                                 fclose(fp);
 264                                 continue;
 265                         }
 266                 }
 267
 268                 break;
 269         }
 270 #else /* !USE_GPGME */
 271         if ((fp = procmsg_open_message(msginfo)) == NULL) return;
 272         mimeinfo = procmime_scan_mime_header(fp);
 273 #endif /* USE_GPGME */
 274         fclose(fp);
 275         if (!mimeinfo) return;
 276
 277         file = procmsg_get_message_file_path(msginfo);
 278         g_return_if_fail(file != NULL);
 279
 280         tmpmsginfo = procheader_parse(file, msginfo->flags, TRUE);
 281
 282         if (prefs_common.return_receipt
 283             && (tmpmsginfo->dispositionnotificationto
 284                 || tmpmsginfo->returnreceiptto)
 285             && (MSG_IS_UNREAD(msginfo->flags))) {
 286                 gint ok;
 287
 288                 if (alertpanel(_("Return Receipt"), _("Send return receipt ?"),
 289                                _("Yes"), _("No"), NULL) == G_ALERTDEFAULT) {
 290                         ok = dispotition_notification_send(tmpmsginfo);
 291                         if (ok < 0)
 292                                 alertpanel_error(_("Error occurred while sending notification."));
 293                 }
 294         }
 295
 296         headerview_show(messageview->headerview, tmpmsginfo);
 297         procmsg_msginfo_free(tmpmsginfo);
 298
 299         if (mimeinfo->mime_type != MIME_TEXT) {
 300                 messageview_change_view_type(messageview, MVIEW_MIME);
 301                 mimeview_show_message(messageview->mimeview, mimeinfo, file);
 302         } else {
 303                 messageview_change_view_type(messageview, MVIEW_TEXT);
 304                 textview_show_message(messageview->textview, mimeinfo, file);
 305                 procmime_mimeinfo_free(mimeinfo);
 306         }
 307
 308         g_free(file);
 309 }
 310
 311 static void messageview_change_view_type(MessageView *messageview,
 312                                          MessageType type)
 313 {
 314         TextView *textview = messageview->textview;
 315         ImageView *imageview = messageview->imageview;
 316         MimeView *mimeview = messageview->mimeview;
 317
 318         if (messageview->type == type) return;
 319
 320         if (type == MVIEW_MIME) {
 321                 gtk_container_remove
 322                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 323                          GTK_WIDGET_PTR(textview));
 324                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 325                                    GTK_WIDGET_PTR(mimeview), TRUE, TRUE, 0);
 326                 gtk_container_add(GTK_CONTAINER(mimeview->vbox),
 327                                   GTK_WIDGET_PTR(textview));
 328                 mimeview->type = MIMEVIEW_TEXT;
 329         } else if (type == MVIEW_TEXT) {
 330                 gtk_container_remove
 331                         (GTK_CONTAINER(GTK_WIDGET_PTR(messageview)),
 332                          GTK_WIDGET_PTR(mimeview));
 333
 334                 if (mimeview->vbox == GTK_WIDGET_PTR(textview)->parent) {
 335                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 336                                              GTK_WIDGET_PTR(textview));
 337                 } else {
 338                         gtk_container_remove(GTK_CONTAINER(mimeview->vbox),
 339                                              GTK_WIDGET_PTR(imageview));
 340                 }
 341
 342                 gtk_box_pack_start(GTK_BOX(messageview->vbox),
 343                                    GTK_WIDGET_PTR(textview), TRUE, TRUE, 0);
 344         } else
 345                 return;
 346
 347         messageview->type = type;
 348 }
 349
 350 void messageview_clear(MessageView *messageview)
 351 {
 352         messageview_change_view_type(messageview, MVIEW_TEXT);
 353         headerview_clear(messageview->headerview);
 354         textview_clear(messageview->textview);
 355 }
 356
 357 void messageview_destroy(MessageView *messageview)
 358 {
 359         GtkWidget *textview  = GTK_WIDGET_PTR(messageview->textview);
 360         GtkWidget *imageview = GTK_WIDGET_PTR(messageview->imageview);
 361         GtkWidget *mimeview  = GTK_WIDGET_PTR(messageview->mimeview);
 362
 363         headerview_destroy(messageview->headerview);
 364         textview_destroy(messageview->textview);
 365         imageview_destroy(messageview->imageview);
 366         mimeview_destroy(messageview->mimeview);
 367
 368         g_free(messageview);
 369
 370         gtk_widget_unref(textview);
 371         gtk_widget_unref(imageview);
 372         gtk_widget_unref(mimeview);
 373 }
 374
 375 void messageview_quote_color_set(void)
 376 {
 377 }
 378
 379 void messageview_set_font(MessageView *messageview)
 380 {
 381         textview_set_font(messageview->textview, NULL);
 382 }
 383
 384 void messageview_copy_clipboard(MessageView *messageview)
 385 {
 386         if (messageview->type == MVIEW_TEXT)
 387                 gtk_editable_copy_clipboard
 388                         (GTK_EDITABLE(messageview->textview->text));
 389 }
 390
 391 void messageview_select_all(MessageView *messageview)
 392 {
 393         if (messageview->type == MVIEW_TEXT)
 394                 gtk_editable_select_region
 395                         (GTK_EDITABLE(messageview->textview->text), 0, -1);
 396 }
 397
 398 GtkWidget *messageview_get_text_widget(MessageView *messageview)
 399 {
 400         return messageview->textview->text;
 401 }
 402
 403 static void messageview_destroy_cb(GtkWidget *widget, MessageView *messageview)
 404 {
 405         messageview_destroy(messageview);
 406 }
 407
 408 static void messageview_size_allocate_cb(GtkWidget *widget,
 409                                          GtkAllocation *allocation)
 410 {
 411         g_return_if_fail(allocation != NULL);
 412
 413         prefs_common.msgwin_width  = allocation->width;
 414         prefs_common.msgwin_height = allocation->height;
 415 }
 416
 417 static void key_pressed(GtkWidget *widget, GdkEventKey *event,
 418                         MessageView *messageview)
 419 {
 420         if (event && event->keyval == GDK_Escape && messageview->window)
 421                 gtk_widget_destroy(messageview->window);
 422 }