src/plugins/dillo_viewer/dillo_viewer.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2012 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 <unistd.h>
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #if GTK_CHECK_VERSION(3, 0, 0)
  31 #include <gtk/gtkx.h>
  32 #endif
  33 #include <gdk/gdkx.h>
  34
  35 #include "common/claws.h"
  36 #include "common/version.h"
  37 #include "plugin.h"
  38 #include "utils.h"
  39 #include "mimeview.h"
  40 #include "addr_compl.h"
  41
  42 #include "dillo_prefs.h"
  43
  44 #define PLUGIN_NAME (_("Dillo HTML Viewer"))
  45
  46 typedef struct _DilloViewer DilloViewer;
  47
  48 struct _DilloViewer
  49 {
  50         MimeViewer       mimeviewer;
  51         GtkWidget       *widget;
  52         GtkWidget       *socket;
  53         gchar           *filename;
  54 };
  55
  56 static MimeViewerFactory dillo_viewer_factory;
  57
  58 static GtkWidget *dillo_get_widget(MimeViewer *_viewer)
  59 {
  60         DilloViewer *viewer = (DilloViewer *) _viewer;
  61
  62         debug_print("dillo_get_widget\n");
  63
  64         return GTK_WIDGET(viewer->widget);
  65 }
  66
  67 #if !GTK_CHECK_VERSION(3, 0, 0)
  68 static gboolean socket_destroy_cb(GtkObject *object, gpointer data)
  69 #else
  70 static gboolean socket_destroy_cb(GtkObject *object, gpointer data)
  71 #endif
  72 {
  73         DilloViewer *viewer = (DilloViewer *) data;
  74         debug_print("Destroyed dillo socket %p\n", viewer->socket);
  75         viewer->socket = NULL;
  76         return FALSE;
  77 }
  78
  79 static gboolean found_in_addressbook(const gchar *address)
  80 {
  81         gchar *addr = NULL;
  82         gboolean found = FALSE;
  83         gint num_addr = 0;
  84
  85         if (!address)
  86                 return FALSE;
  87
  88         addr = g_strdup(address);
  89         extract_address(addr);
  90         num_addr = complete_address(addr);
  91         if (num_addr > 1) {
  92                 /* skip first item (this is the search string itself) */
  93                 int i = 1;
  94                 for (; i < num_addr && !found; i++) {
  95                         gchar *caddr = get_complete_address(i);
  96                         extract_address(caddr);
  97                         if (strcasecmp(caddr, addr) == 0)
  98                                 found = TRUE;
  99                         g_free(caddr);
 100                 }
 101         }
 102         g_free(addr);
 103         return found;
 104 }
 105
 106 static gboolean load_images(DilloViewer *viewer)
 107 {
 108         MessageView *messageview = ((MimeViewer *)viewer)->mimeview
 109                                         ? ((MimeViewer *)viewer)->mimeview->messageview
 110                                         : NULL;
 111         MsgInfo *msginfo = NULL;
 112         gchar *ab_folderpath = NULL;
 113
 114         if (messageview == NULL)
 115                 return FALSE;
 116
 117         msginfo = messageview->msginfo;
 118
 119         if (msginfo == NULL)
 120                 return FALSE;
 121
 122         /* don't load remote images, period. */
 123         if (dillo_prefs.local)
 124                 return FALSE;
 125
 126         /* don't do whitelisting -> load images */
 127         if (!dillo_prefs.whitelist_ab)
 128                 return TRUE;
 129
 130         if (*dillo_prefs.whitelist_ab_folder != '\0' &&
 131             strcasecmp(dillo_prefs.whitelist_ab_folder, _("Any")) != 0)
 132                 ab_folderpath = dillo_prefs.whitelist_ab_folder;
 133
 134         start_address_completion(ab_folderpath);
 135
 136         /* do whitelisting -> check sender */
 137         if (found_in_addressbook(msginfo->from)) {
 138                 end_address_completion();
 139                 return TRUE;
 140         }
 141
 142         end_address_completion();
 143         return FALSE;
 144 }
 145
 146 static void dillo_show_mimepart(MimeViewer *_viewer,
 147                                 const gchar *infile,
 148                                 MimeInfo *partinfo)
 149 {
 150         DilloViewer *viewer = (DilloViewer *) _viewer;
 151
 152         debug_print("dillo_show_mimepart\n");
 153
 154         if (viewer->filename != NULL) {
 155                 claws_unlink(viewer->filename);
 156                 g_free(viewer->filename);
 157         }
 158
 159         viewer->filename = procmime_get_tmp_file_name(partinfo);
 160
 161         if (!(procmime_get_part(viewer->filename, partinfo) < 0)) {
 162                 gchar *cmd;
 163
 164                 if (viewer->socket)
 165                         gtk_widget_destroy(viewer->socket);
 166                 viewer->socket = gtk_socket_new();
 167                 debug_print("Adding dillo socket %p", viewer->socket);
 168                 gtk_container_add(GTK_CONTAINER(viewer->widget),
 169                                   viewer->socket);
 170                 gtk_widget_realize(viewer->socket);
 171                 gtk_widget_show(viewer->socket);
 172                 g_signal_connect(G_OBJECT(viewer->socket), "destroy",
 173                                  G_CALLBACK(socket_destroy_cb), viewer);
 174
 175                 cmd = g_strdup_printf("dillo %s%s-x %d \"%s\"",
 176                                       (!load_images(viewer) ? "-l " : ""),
 177                                       (dillo_prefs.full ? "-f " : ""),
 178                                       (gint) GDK_WINDOW_XWINDOW(viewer->socket->window),
 179                                       viewer->filename);
 180
 181                 execute_command_line(cmd, TRUE);
 182                 g_free(cmd);
 183         }
 184 }
 185
 186 static void dillo_clear_viewer(MimeViewer *_viewer)
 187 {
 188         DilloViewer *viewer = (DilloViewer *) _viewer;
 189
 190         debug_print("dillo_clear_viewer\n");
 191         debug_print("Removing dillo socket %p\n", viewer->socket);
 192
 193         if (viewer->socket) {
 194                 gtk_widget_destroy(viewer->socket);
 195         }
 196 }
 197
 198 static void dillo_destroy_viewer(MimeViewer *_viewer)
 199 {
 200         DilloViewer *viewer = (DilloViewer *) _viewer;
 201
 202         debug_print("dillo_destroy_viewer\n");
 203
 204         if (viewer->socket) {
 205                 gtk_widget_destroy(viewer->socket);
 206         }
 207
 208         g_object_unref(GTK_WIDGET(viewer->widget));
 209         claws_unlink(viewer->filename);
 210         g_free(viewer->filename);
 211         g_free(viewer);
 212 }
 213
 214 static MimeViewer *dillo_viewer_create(void)
 215 {
 216         DilloViewer *viewer;
 217
 218         debug_print("dillo_viewer_create\n");
 219
 220         viewer = g_new0(DilloViewer, 1);
 221         viewer->mimeviewer.factory = &dillo_viewer_factory;
 222         viewer->mimeviewer.get_widget = dillo_get_widget;
 223         viewer->mimeviewer.show_mimepart = dillo_show_mimepart;
 224         viewer->mimeviewer.clear_viewer = dillo_clear_viewer;
 225         viewer->mimeviewer.destroy_viewer = dillo_destroy_viewer;
 226         viewer->mimeviewer.get_selection = NULL;
 227         viewer->widget = gtk_event_box_new();
 228
 229         gtk_widget_show(viewer->widget);
 230         g_object_ref(viewer->widget);
 231
 232         viewer->filename = NULL;
 233
 234         return (MimeViewer *) viewer;
 235 }
 236
 237 static gchar *content_types[] =
 238         {"text/html", NULL};
 239
 240 static MimeViewerFactory dillo_viewer_factory =
 241 {
 242         content_types,
 243         0,
 244
 245         dillo_viewer_create,
 246 };
 247
 248 gint plugin_init(gchar **error)
 249 {
 250         gchar *dillo_path = NULL;
 251         if (!check_plugin_version(MAKE_NUMERIC_VERSION(2,9,2,72),
 252                                 VERSION_NUMERIC, PLUGIN_NAME, error))
 253                 return -1;
 254
 255         if ((dillo_path = g_find_program_in_path("dillo")) == NULL) {
 256                 *error = g_strdup(_("Can't find the dillo executable in PATH. Is it installed?"));
 257                 return -1;
 258         }
 259         g_free(dillo_path);
 260
 261         dillo_prefs_init();
 262
 263         mimeview_register_viewer_factory(&dillo_viewer_factory);
 264
 265         return 0;
 266 }
 267
 268 gboolean plugin_done(void)
 269 {
 270         mimeview_unregister_viewer_factory(&dillo_viewer_factory);
 271
 272         dillo_prefs_done();
 273         return TRUE;
 274 }
 275
 276 const gchar *plugin_name(void)
 277 {
 278         return PLUGIN_NAME;
 279 }
 280
 281 const gchar *plugin_desc(void)
 282 {
 283         return _("This plugin renders HTML mail using the Dillo "
 284                 "web browser.\n"
 285                 "\n"
 286                 "Options can be found in /Configuration/Preferences/Plugins/Dillo Browser");
 287 }
 288
 289 const gchar *plugin_type(void)
 290 {
 291         return "GTK2";
 292 }
 293
 294 const gchar *plugin_licence(void)
 295 {
 296         return "GPL3+";
 297 }
 298
 299 const gchar *plugin_version(void)
 300 {
 301         return VERSION;
 302 }
 303
 304 struct PluginFeature *plugin_provides(void)
 305 {
 306         static struct PluginFeature features[] =
 307                 { {PLUGIN_MIMEVIEWER, "text/html"},
 308                   {PLUGIN_NOTHING, NULL}};
 309         return features;
 310 }