servers/exchange/storage/exchange-hierarchy-somedav.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2
   3 /* Copyright (C) 2002-2004 Novell, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of version 2 of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this program; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 /* ExchangeHierarchySomeDAV: class for a hierarchy consisting of a
  21  * specific group of WebDAV folders
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include "exchange-hierarchy-somedav.h"
  29 #include "exchange-account.h"
  30 #include "e-folder-exchange.h"
  31 #include "e2k-propnames.h"
  32 #include "e2k-uri.h"
  33 #include "e2k-utils.h"
  34
  35 #include <libedataserver/e-xml-hash-utils.h>
  36
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40
  41 struct _ExchangeHierarchySomeDAVPrivate {
  42         gboolean scanned;
  43 };
  44
  45 enum {
  46         HREF_UNREADABLE,
  47         LAST_SIGNAL
  48 };
  49
  50 static guint signals [LAST_SIGNAL] = { 0 };
  51
  52 #define PARENT_TYPE EXCHANGE_TYPE_HIERARCHY_WEBDAV
  53 static ExchangeHierarchyWebDAVClass *parent_class = NULL;
  54
  55 static ExchangeAccountFolderResult scan_subtree (ExchangeHierarchy *hier,
  56                                                  EFolder *folder,
  57                                                  int mode);
  58 static void finalize (GObject *object);
  59
  60 static void
  61 class_init (GObjectClass *object_class)
  62 {
  63         ExchangeHierarchyClass *exchange_hierarchy_class =
  64                 EXCHANGE_HIERARCHY_CLASS (object_class);
  65
  66         parent_class = g_type_class_ref (PARENT_TYPE);
  67
  68         /* virtual method override */
  69         object_class->finalize = finalize;
  70
  71         exchange_hierarchy_class->scan_subtree   = scan_subtree;
  72
  73         /* signals */
  74         signals[HREF_UNREADABLE] =
  75                 g_signal_new ("href_unreadable",
  76                               G_OBJECT_CLASS_TYPE (object_class),
  77                               G_SIGNAL_RUN_LAST,
  78                               G_STRUCT_OFFSET (ExchangeHierarchySomeDAVClass, href_unreadable),
  79                               NULL, NULL,
  80                               g_cclosure_marshal_VOID__STRING,
  81                               G_TYPE_NONE, 1,
  82                               G_TYPE_STRING);
  83 }
  84
  85 static void
  86 init (GObject *object)
  87 {
  88         ExchangeHierarchySomeDAV *hsd = EXCHANGE_HIERARCHY_SOMEDAV (object);
  89
  90         hsd->priv = g_new0 (ExchangeHierarchySomeDAVPrivate, 1);
  91 }
  92
  93 static void
  94 finalize (GObject *object)
  95 {
  96         ExchangeHierarchySomeDAV *hsd = EXCHANGE_HIERARCHY_SOMEDAV (object);
  97
  98         g_free (hsd->priv);
  99
 100         G_OBJECT_CLASS (parent_class)->finalize (object);
 101 }
 102
 103 E2K_MAKE_TYPE (exchange_hierarchy_somedav, ExchangeHierarchySomeDAV, class_init, init, PARENT_TYPE)
 104
 105
 106 static inline gboolean
 107 folder_is_unreadable (E2kProperties *props)
 108 {
 109         char *access;
 110
 111         access = e2k_properties_get_prop (props, PR_ACCESS);
 112         return !access || !atoi (access);
 113 }
 114
 115 static const char *folder_props[] = {
 116         E2K_PR_EXCHANGE_FOLDER_CLASS,
 117         E2K_PR_HTTPMAIL_UNREAD_COUNT,
 118         E2K_PR_DAV_DISPLAY_NAME,
 119         PR_ACCESS
 120 };
 121 static const int n_folder_props = sizeof (folder_props) / sizeof (folder_props[0]);
 122
 123 static ExchangeAccountFolderResult
 124 scan_subtree (ExchangeHierarchy *hier, EFolder *folder, int mode)
 125 {
 126         ExchangeHierarchySomeDAV *hsd = EXCHANGE_HIERARCHY_SOMEDAV (hier);
 127         GPtrArray *hrefs;
 128         E2kResultIter *iter;
 129         E2kResult *result;
 130         int folders_returned=0, folders_added=0, i;
 131         E2kHTTPStatus status;
 132         ExchangeAccountFolderResult folder_result;
 133         EFolder *iter_folder = NULL;
 134
 135         /* FIXME : Temporarily allow a rescan of the hierarchy. The proper fix
 136         is to handle the folder list either in ExchangeAccount or in the
 137         plugins/exchange backend separately by listening to signals.
 138         if (hsd->priv->scanned || folder != hier->toplevel) */
 139         if (folder != hier->toplevel)
 140                 return EXCHANGE_ACCOUNT_FOLDER_OK;
 141         hsd->priv->scanned = TRUE;
 142
 143         if (mode == OFFLINE_MODE)
 144                 return EXCHANGE_ACCOUNT_FOLDER_OK;
 145
 146         hrefs = exchange_hierarchy_somedav_get_hrefs (hsd);
 147         if (!hrefs)
 148                 return EXCHANGE_ACCOUNT_FOLDER_OK;
 149         if (!hrefs->len) {
 150                 g_ptr_array_free (hrefs, TRUE);
 151                 return EXCHANGE_ACCOUNT_FOLDER_DOES_NOT_EXIST;
 152         }
 153
 154         iter = e_folder_exchange_bpropfind_start (hier->toplevel, NULL,
 155                                                   (const char **)hrefs->pdata,
 156                                                   hrefs->len,
 157                                                   folder_props,
 158                                                   n_folder_props);
 159
 160         while ((result = e2k_result_iter_next (iter))) {
 161                 folders_returned++;
 162
 163                 /* If you have "folder visible" permission but nothing
 164                  * else, you'll be able to fetch properties, but not
 165                  * see anything in the folder. In that case, PR_ACCESS
 166                  * will be 0, and we ignore the folder.
 167                  */
 168                 if (!E2K_HTTP_STATUS_IS_SUCCESSFUL (result->status) ||
 169                     folder_is_unreadable (result->props)) {
 170                         exchange_hierarchy_somedav_href_unreadable (hsd, result->href);
 171                         continue;
 172                 }
 173
 174                 folders_added++;
 175                 iter_folder = exchange_hierarchy_webdav_parse_folder (
 176                         EXCHANGE_HIERARCHY_WEBDAV (hier),
 177                         hier->toplevel, result);
 178                 exchange_hierarchy_new_folder (hier, iter_folder);
 179                 g_object_unref (iter_folder);
 180         }
 181         status = e2k_result_iter_free (iter);
 182
 183         if (folders_returned == 0)
 184                 folder_result = EXCHANGE_ACCOUNT_FOLDER_DOES_NOT_EXIST;
 185         else if (folders_added == 0)
 186                 folder_result = EXCHANGE_ACCOUNT_FOLDER_PERMISSION_DENIED;
 187         else
 188                 folder_result = exchange_hierarchy_webdav_status_to_folder_result (status);
 189
 190         for (i = 0; i < hrefs->len; i++)
 191                 g_free (hrefs->pdata[i]);
 192         g_ptr_array_free (hrefs, TRUE);
 193
 194         return folder_result;
 195 }
 196
 197
 198 GPtrArray *
 199 exchange_hierarchy_somedav_get_hrefs (ExchangeHierarchySomeDAV *hsd)
 200 {
 201         g_return_val_if_fail (EXCHANGE_IS_HIERARCHY_SOMEDAV (hsd), NULL);
 202
 203         return EXCHANGE_GET_HIERARCHY_SOMEDAV_CLASS (hsd)->get_hrefs (hsd);
 204 }
 205
 206 void
 207 exchange_hierarchy_somedav_href_unreadable (ExchangeHierarchySomeDAV *hsd,
 208                                             const char *href)
 209 {
 210         g_return_if_fail (EXCHANGE_IS_HIERARCHY_SOMEDAV (hsd));
 211         g_return_if_fail (href != NULL);
 212
 213         g_signal_emit (hsd, signals[HREF_UNREADABLE], 0, href);
 214 }
 215
 216 ExchangeAccountFolderResult
 217 exchange_hierarchy_somedav_add_folder (ExchangeHierarchySomeDAV *hsd,
 218                                        const char *uri)
 219 {
 220         ExchangeHierarchyWebDAV *hwd;
 221         ExchangeHierarchy *hier;
 222         E2kContext *ctx;
 223         E2kHTTPStatus status;
 224         E2kResult *results;
 225         int nresults = 0;
 226         EFolder *folder;
 227
 228         g_return_val_if_fail (EXCHANGE_IS_HIERARCHY_SOMEDAV (hsd),
 229                                 EXCHANGE_ACCOUNT_FOLDER_GENERIC_ERROR);
 230         g_return_val_if_fail (uri != NULL,
 231                                 EXCHANGE_ACCOUNT_FOLDER_GENERIC_ERROR);
 232
 233         hwd = EXCHANGE_HIERARCHY_WEBDAV (hsd);
 234         hier = EXCHANGE_HIERARCHY (hsd);
 235         ctx = exchange_account_get_context (hier->account);
 236
 237         status = e2k_context_propfind (ctx, NULL, uri,
 238                                        folder_props, n_folder_props,
 239                                        &results, &nresults);
 240         if (!E2K_HTTP_STATUS_IS_SUCCESSFUL (status))
 241                 return exchange_hierarchy_webdav_status_to_folder_result (status);
 242
 243         if (nresults == 0)
 244                 return EXCHANGE_ACCOUNT_FOLDER_DOES_NOT_EXIST;
 245
 246         if (folder_is_unreadable (results[0].props)) {
 247                 e2k_results_free (results, nresults);
 248                 return EXCHANGE_ACCOUNT_FOLDER_PERMISSION_DENIED;
 249         }
 250
 251         folder = exchange_hierarchy_webdav_parse_folder (hwd, hier->toplevel,
 252                                                          &results[0]);
 253         e2k_results_free (results, nresults);
 254
 255         if (!folder)
 256                 return EXCHANGE_ACCOUNT_FOLDER_DOES_NOT_EXIST;
 257
 258         exchange_hierarchy_new_folder (hier, folder);
 259         g_object_unref (folder);
 260         return EXCHANGE_ACCOUNT_FOLDER_OK;
 261 }