src/plugins/dillo_viewer/dillo_viewer.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 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 #endif
  23
  24 #include <unistd.h>
  25
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28 #include <gtk/gtk.h>
  29 #include <gdk/gdkx.h>
  30
  31 #include "common/claws.h"
  32 #include "common/version.h"
  33 #include "plugin.h"
  34 #include "utils.h"
  35 #include "mimeview.h"
  36 #include "addr_compl.h"
  37
  38 #include "dillo_prefs.h"
  39
  40 #define PLUGIN_NAME (_("Dillo HTML Viewer"))
  41
  42 typedef struct _DilloViewer DilloViewer;
  43
  44 struct _DilloViewer
  45 {
  46         MimeViewer       mimeviewer;
  47         GtkWidget       *widget;
  48         GtkWidget       *socket;
  49         gchar           *filename;
  50 };
  51
  52 static MimeViewerFactory dillo_viewer_factory;
  53
  54 static GtkWidget *dillo_get_widget(MimeViewer *_viewer)
  55 {
  56         DilloViewer *viewer = (DilloViewer *) _viewer;
  57
  58         debug_print("dillo_get_widget\n");
  59
  60         return GTK_WIDGET(viewer->widget);
  61 }
  62
  63 static gboolean socket_destroy_cb(GtkObject *object, gpointer data)
  64 {
  65         DilloViewer *viewer = (DilloViewer *) data;
  66         debug_print("Destroyed dillo socket %p\n", viewer->socket);
  67         viewer->socket = NULL;
  68         return FALSE;
  69 }
  70
  71 static gboolean found_in_addressbook(const gchar *address)
  72 {
  73         gchar *addr = NULL;
  74         gboolean found = FALSE;
  75         gint num_addr = 0;
  76
  77         if (!address)
  78                 return FALSE;
  79
  80         addr = g_strdup(address);
  81         extract_address(addr);
  82         num_addr = complete_address(addr);
  83         if (num_addr > 1) {
  84                 /* skip first item (this is the search string itself) */
  85                 int i = 1;
  86                 for (; i < num_addr && !found; i++) {
  87                         gchar *caddr = get_complete_address(i);
  88                         extract_address(caddr);
  89                         if (strcasecmp(caddr, addr) == 0)
  90                                 found = TRUE;
  91                         g_free(caddr);
  92                 }
  93         }
  94         g_free(addr);
  95         return found;
  96 }
  97
  98 static gboolean load_images(DilloViewer *viewer)
  99 {
 100         MessageView *messageview = ((MimeViewer *)viewer)->mimeview
 101                                         ? ((MimeViewer *)viewer)->mimeview->messageview
 102                                         : NULL;
 103         MsgInfo *msginfo = NULL;
 104         gchar *ab_folderpath = NULL;
 105
 106         if (messageview == NULL)
 107                 return FALSE;
 108
 109         msginfo = messageview->msginfo;
 110
 111         if (msginfo == NULL)
 112                 return FALSE;
 113
 114         /* don't load remote images, period. */
 115         if (dillo_prefs.local)
 116                 return FALSE;
 117
 118         /* don't do whitelisting -> load images */
 119         if (!dillo_prefs.whitelist_ab)
 120                 return TRUE;
 121
 122         if (*dillo_prefs.whitelist_ab_folder != '\0' &&
 123             strcasecmp(dillo_prefs.whitelist_ab_folder, _("Any")) != 0)
 124                 ab_folderpath = dillo_prefs.whitelist_ab_folder;
 125
 126         start_address_completion(ab_folderpath);
 127
 128         /* do whitelisting -> check sender */
 129         if (found_in_addressbook(msginfo->from)) {
 130                 end_address_completion();
 131                 return TRUE;
 132         }
 133
 134         end_address_completion();
 135         return FALSE;
 136 }
 137
 138 static void dillo_show_mimepart(MimeViewer *_viewer,
 139                                 const gchar *infile,
 140                                 MimeInfo *partinfo)
 141 {
 142         DilloViewer *viewer = (DilloViewer *) _viewer;
 143
 144         debug_print("dillo_show_mimepart\n");
 145
 146         if (viewer->filename != NULL) {
 147                 claws_unlink(viewer->filename);
 148                 g_free(viewer->filename);
 149         }
 150
 151         viewer->filename = procmime_get_tmp_file_name(partinfo);
 152
 153         if (!(procmime_get_part(viewer->filename, partinfo) < 0)) {
 154                 gchar *cmd;
 155
 156                 if (viewer->socket)
 157                         gtk_widget_destroy(viewer->socket);
 158                 viewer->socket = gtk_socket_new();
 159                 debug_print("Adding dillo socket %p", viewer->socket);
 160                 gtk_container_add(GTK_CONTAINER(viewer->widget),
 161                                   viewer->socket);
 162                 gtk_widget_realize(viewer->socket);
 163                 gtk_widget_show(viewer->socket);
 164                 g_signal_connect(G_OBJECT(viewer->socket), "destroy",
 165                                  G_CALLBACK(socket_destroy_cb), viewer);
 166
 167                 cmd = g_strdup_printf("dillo %s%s-x %d \"%s\"",
 168                                       (!load_images(viewer) ? "-l " : ""),
 169                                       (dillo_prefs.full ? "-f " : ""),
 170                                       (gint) GDK_WINDOW_XWINDOW(viewer->socket->window),
 171                                       viewer->filename);
 172
 173                 execute_command_line(cmd, TRUE);
 174                 g_free(cmd);
 175         }
 176 }
 177
 178 static void dillo_clear_viewer(MimeViewer *_viewer)
 179 {
 180         DilloViewer *viewer = (DilloViewer *) _viewer;
 181
 182         debug_print("dillo_clear_viewer\n");
 183         debug_print("Removing dillo socket %p\n", viewer->socket);
 184
 185         if (viewer->socket) {
 186                 gtk_widget_destroy(viewer->socket);
 187         }
 188 }
 189
 190 static void dillo_destroy_viewer(MimeViewer *_viewer)
 191 {
 192         DilloViewer *viewer = (DilloViewer *) _viewer;
 193
 194         debug_print("dillo_destroy_viewer\n");
 195
 196         if (viewer->socket) {
 197                 gtk_widget_destroy(viewer->socket);
 198         }
 199
 200         gtk_widget_unref(GTK_WIDGET(viewer->widget));
 201         claws_unlink(viewer->filename);
 202         g_free(viewer->filename);
 203         g_free(viewer);
 204 }
 205
 206 static MimeViewer *dillo_viewer_create(void)
 207 {
 208         DilloViewer *viewer;
 209
 210         debug_print("dillo_viewer_create\n");
 211
 212         viewer = g_new0(DilloViewer, 1);
 213         viewer->mimeviewer.factory = &dillo_viewer_factory;
 214         viewer->mimeviewer.get_widget = dillo_get_widget;
 215         viewer->mimeviewer.show_mimepart = dillo_show_mimepart;
 216         viewer->mimeviewer.clear_viewer = dillo_clear_viewer;
 217         viewer->mimeviewer.destroy_viewer = dillo_destroy_viewer;
 218         viewer->mimeviewer.get_selection = NULL;
 219         viewer->widget = gtk_event_box_new();
 220
 221         gtk_widget_show(viewer->widget);
 222         gtk_widget_ref(viewer->widget);
 223
 224         viewer->filename = NULL;
 225
 226         return (MimeViewer *) viewer;
 227 }
 228
 229 static gchar *content_types[] =
 230         {"text/html", NULL};
 231
 232 static MimeViewerFactory dillo_viewer_factory =
 233 {
 234         content_types,
 235         0,
 236
 237         dillo_viewer_create,
 238 };
 239
 240 gint plugin_init(gchar **error)
 241 {
 242         gchar *dillo_path = NULL;
 243         if (!check_plugin_version(MAKE_NUMERIC_VERSION(2,9,2,72),
 244                                 VERSION_NUMERIC, PLUGIN_NAME, error))
 245                 return -1;
 246
 247         if ((dillo_path = g_find_program_in_path("dillo")) == NULL) {
 248                 *error = g_strdup(_("Can't find the dillo executable in PATH. Is it installed?"));
 249                 return -1;
 250         }
 251         g_free(dillo_path);
 252
 253         dillo_prefs_init();
 254
 255         mimeview_register_viewer_factory(&dillo_viewer_factory);
 256
 257         return 0;
 258 }
 259
 260 gboolean plugin_done(void)
 261 {
 262         mimeview_unregister_viewer_factory(&dillo_viewer_factory);
 263
 264         dillo_prefs_done();
 265         return TRUE;
 266 }
 267
 268 const gchar *plugin_name(void)
 269 {
 270         return PLUGIN_NAME;
 271 }
 272
 273 const gchar *plugin_desc(void)
 274 {
 275         return _("This plugin renders HTML mail using the Dillo "
 276                 "web browser.\n"
 277                 "\n"
 278                 "Options can be found in /Configuration/Preferences/Plugins/Dillo Browser");
 279 }
 280
 281 const gchar *plugin_type(void)
 282 {
 283         return "GTK2";
 284 }
 285
 286 const gchar *plugin_licence(void)
 287 {
 288         return "GPL3+";
 289 }
 290
 291 const gchar *plugin_version(void)
 292 {
 293         return VERSION;
 294 }
 295
 296 struct PluginFeature *plugin_provides(void)
 297 {
 298         static struct PluginFeature features[] =
 299                 { {PLUGIN_MIMEVIEWER, "text/html"},
 300                   {PLUGIN_NOTHING, NULL}};
 301         return features;
 302 }