path: root/mail/em-folder-utils.c

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Authors:
 *      Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include "em-folder-utils.h"

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>

#include <libxml/tree.h>

#include <gtk/gtk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib/gi18n.h>

#include <e-util/e-util.h>

#include "em-vfolder-editor-rule.h"

#include "e-mail-ui-session.h"
#include "em-utils.h"
#include "em-folder-tree.h"
#include "em-folder-tree-model.h"
#include "em-folder-selector.h"
#include "em-folder-properties.h"
#include "mail-vfolder-ui.h"

#define d(x)

static gboolean
emfu_is_special_local_folder (const gchar *name)
{
    return (!strcmp (name, "Drafts") ||
        !strcmp (name, "Inbox") ||
        !strcmp (name, "Outbox") ||
        !strcmp (name, "Sent") ||
        !strcmp (name, "Templates"));
}

struct _EMCopyFolders {
    MailMsg base;

    /* input data */
    CamelStore *fromstore;
    CamelStore *tostore;

    gchar *frombase;
    gchar *tobase;

    gint delete;
};

static gchar *
emft_copy_folders__desc (struct _EMCopyFolders *m,
                         gint complete)
{
    if (m->delete)
        return g_strdup_printf (_("Moving folder %s"), m->frombase);
    else
        return g_strdup_printf (_("Copying folder %s"), m->frombase);
}

static void
emft_copy_folders__exec (struct _EMCopyFolders *m,
                         GCancellable *cancellable,
                         GError **error)
{
    guint32 flags;
    GList *pending = NULL, *deleting = NULL, *l;
    GString *fromname, *toname;
    CamelFolderInfo *fi;
    const gchar *tmp;
    gint fromlen;

    flags = CAMEL_STORE_FOLDER_INFO_FAST |
        CAMEL_STORE_FOLDER_INFO_SUBSCRIBED;

    /* If we're copying, then we need to copy every subfolder. If we're
     * *moving*, though, then we only need to rename the top-level folder */
    if (!m->delete)
        flags |= CAMEL_STORE_FOLDER_INFO_RECURSIVE;

    fi = camel_store_get_folder_info_sync (
        m->fromstore, m->frombase, flags, cancellable, error);
    if (fi == NULL)
        return;

    pending = g_list_append (pending, fi);

    toname = g_string_new ("");
    fromname = g_string_new ("");

    tmp = strrchr (m->frombase, '/');
    if (tmp == NULL)
        fromlen = 0;
    else
        fromlen = tmp - m->frombase + 1;

    d (printf ("top name is '%s'\n", fi->full_name));

    while (pending) {
        CamelFolderInfo *info = pending->data;

        pending = g_list_remove_link (pending, pending);
        while (info) {
            CamelFolder *fromfolder, *tofolder;
            GPtrArray *uids;
            gint deleted = 0;

            /* We still get immediate children even without the
             * CAMEL_STORE_FOLDER_INFO_RECURSIVE flag. But we only
             * want to process the children too if we're *copying * */
            if (info->child && !m->delete)
                pending = g_list_append (pending, info->child);

            if (m->tobase[0])
                g_string_printf (
                    toname, "%s/%s", m->tobase,
                    info->full_name + fromlen);
            else
                g_string_printf (
                    toname, "%s",
                    info->full_name + fromlen);

            d (printf (
                "Copying from '%s' to '%s'\n",
                info->full_name, toname->str));

            /* This makes sure we create the same tree,
             * e.g. from a nonselectable source. */
            /* Not sure if this is really the 'right thing',
             * e.g. for spool stores, but it makes the ui work. */
            if ((info->flags & CAMEL_FOLDER_NOSELECT) == 0) {
                d (printf ("this folder is selectable\n"));
                if (m->tostore == m->fromstore && m->delete) {
                    camel_store_rename_folder_sync (
                        m->fromstore,
                        info->full_name,
                        toname->str,
                        cancellable, error);
                    if (error && *error)
                        goto exception;

                    /* this folder no longer exists, unsubscribe it */
                    if (CAMEL_IS_SUBSCRIBABLE (m->fromstore))
                        camel_subscribable_unsubscribe_folder_sync (
                            CAMEL_SUBSCRIBABLE (m->fromstore),
                            info->full_name, NULL, NULL);

                    deleted = 1;
                } else {
                    fromfolder = camel_store_get_folder_sync (
                        m->fromstore, info->full_name, 0,
                        cancellable, error);
                    if (fromfolder == NULL)
                        goto exception;

                    tofolder = camel_store_get_folder_sync (
                        m->tostore, toname->str,
                        CAMEL_STORE_FOLDER_CREATE,
                        cancellable, error);
                    if (tofolder == NULL) {
                        g_object_unref (fromfolder);
                        goto exception;
                    }

                    uids = camel_folder_get_uids (fromfolder);
                    camel_folder_transfer_messages_to_sync (
                        fromfolder, uids, tofolder,
                        m->delete, NULL,
                        cancellable, error);
                    camel_folder_free_uids (fromfolder, uids);

                    if (m->delete && (!error || !*error))
                        camel_folder_synchronize_sync (
                            fromfolder, TRUE,
                            NULL, NULL);

                    g_object_unref (fromfolder);
                    g_object_unref (tofolder);
                }
            }

            if (error && *error)
                goto exception;
            else if (m->delete && !deleted)
                deleting = g_list_prepend (deleting, info);

            /* subscribe to the new folder if appropriate */
            if (CAMEL_IS_SUBSCRIBABLE (m->tostore)
                && !camel_subscribable_folder_is_subscribed (
                    CAMEL_SUBSCRIBABLE (m->tostore),
                    toname->str))
                camel_subscribable_subscribe_folder_sync (
                    CAMEL_SUBSCRIBABLE (m->tostore),
                    toname->str, NULL, NULL);

            info = info->next;
        }
    }

    /* Delete the folders in reverse order from how we copied them,
     * if we are deleting any. */
    l = deleting;
    while (l) {
        CamelFolderInfo *info = l->data;

        d (printf ("deleting folder '%s'\n", info->full_name));

        /* FIXME: we need to do something with the exception
         * since otherwise the users sees a failed operation
         * with no error message or even any warnings */
        if (CAMEL_IS_SUBSCRIBABLE (m->fromstore))
            camel_subscribable_unsubscribe_folder_sync (
                CAMEL_SUBSCRIBABLE (m->fromstore),
                info->full_name, NULL, NULL);

        camel_store_delete_folder_sync (
            m->fromstore, info->full_name, NULL, NULL);
        l = l->next;
    }

exception:
    camel_folder_info_free (fi);
    g_list_free (deleting);

    g_string_free (toname, TRUE);
    g_string_free (fromname, TRUE);
}

static void
emft_copy_folders__free (struct _EMCopyFolders *m)
{
    g_object_unref (m->fromstore);
    g_object_unref (m->tostore);

    g_free (m->frombase);
    g_free (m->tobase);
}

static MailMsgInfo copy_folders_info = {
    sizeof (struct _EMCopyFolders),
    (MailMsgDescFunc) emft_copy_folders__desc,
    (MailMsgExecFunc) emft_copy_folders__exec,
    (MailMsgDoneFunc) NULL,
    (MailMsgFreeFunc) emft_copy_folders__free
};

gint
em_folder_utils_copy_folders (CamelStore *fromstore,
                              const gchar *frombase,
                              CamelStore *tostore,
                              const gchar *tobase,
                              gint delete)
{
    struct _EMCopyFolders *m;
    gint seq;

    m = mail_msg_new (&copy_folders_info);
    g_object_ref (fromstore);
    m->fromstore = fromstore;
    g_object_ref (tostore);
    m->tostore = tostore;
    m->frombase = g_strdup (frombase);
    m->tobase = g_strdup (tobase);
    m->delete = delete;
    seq = m->base.seq;

    mail_msg_unordered_push (m);

    return seq;
}

struct _copy_folder_data {
    CamelStore *source_store;
    gchar *source_folder_name;
    gboolean delete;
};

static void
emfu_copy_folder_selected (EMailSession *session,
                           EAlertSink *alert_sink,
                           const gchar *uri,
                           gpointer data)
{
    struct _copy_folder_data *cfd = data;
    CamelProvider *provider, *toprovider;
    CamelStore *tostore = NULL;
    CamelService *service, *toservice;
    gboolean store_is_local, tostore_is_local, session_is_online;
    const gchar *display_name, *todisplay_name;
    gchar *tobase = NULL;
    gchar *folder_name = NULL, *tofolder_name = NULL;
    GError *local_error = NULL;

    if (uri == NULL)
        goto fail;

    session_is_online = camel_session_get_online (CAMEL_SESSION (session));

    service = CAMEL_SERVICE (cfd->source_store);
    provider = camel_service_get_provider (service);
    store_is_local = (provider->flags & CAMEL_PROVIDER_IS_LOCAL) != 0;
    display_name = camel_service_get_display_name (service);
    folder_name = g_strdup_printf ("%s: %s", display_name, cfd->source_folder_name);

    e_mail_folder_uri_parse (
        CAMEL_SESSION (session), uri,
        &tostore, &tobase, &local_error);

    if (local_error != NULL) {
        e_alert_submit (
            alert_sink, cfd->delete ?
            "mail:no-move-folder-to-nostore" :
            "mail:no-copy-folder-to-nostore",
            folder_name, uri,
            local_error->message, NULL);
        goto fail;
    }

    g_return_if_fail (CAMEL_IS_STORE (service));

    toservice = CAMEL_SERVICE (tostore);
    toprovider = camel_service_get_provider (toservice);
    tostore_is_local = (toprovider->flags & CAMEL_PROVIDER_IS_LOCAL) != 0;
    todisplay_name = camel_service_get_display_name (toservice);
    tofolder_name = g_strdup_printf ("%s: %s", todisplay_name, tobase);

    if (!session_is_online && (!store_is_local || !tostore_is_local)) {
        e_alert_submit (
            alert_sink,
            "mail:online-operation",
            store_is_local ? tofolder_name : folder_name,
            NULL);
        goto fail;
    }

    camel_service_connect_sync (service, NULL, &local_error);
    if (local_error != NULL) {
        e_alert_submit (
            alert_sink, cfd->delete ?
            "mail:no-move-folder-nostore" :
            "mail:no-copy-folder-nostore",
            folder_name, tofolder_name,
            local_error->message, NULL);
        goto fail;
    }

    if (cfd->delete && store_is_local &&
        emfu_is_special_local_folder (cfd->source_folder_name)) {
        e_alert_submit (
            alert_sink,
            "mail:no-rename-special-folder",
            folder_name, NULL);
        goto fail;
    }

    camel_service_connect_sync (toservice, NULL, &local_error);
    if (local_error != NULL) {
        e_alert_submit (
            alert_sink, cfd->delete ?
            "mail:no-move-folder-to-nostore" :
            "mail:no-copy-folder-to-nostore",
            folder_name, tofolder_name,
            local_error->message, NULL);
        goto fail;
    }

    g_return_if_fail (CAMEL_IS_STORE (tostore));

    em_folder_utils_copy_folders (
        cfd->source_store, cfd->source_folder_name,
        tostore, tobase ? tobase : "", cfd->delete);

fail:
    g_clear_error (&local_error);

    g_object_unref (cfd->source_store);
    g_free (cfd->source_folder_name);
    g_free (cfd);

    if (tostore)
        g_object_unref (tostore);
    g_free (tobase);
    g_free (folder_name);
    g_free (tofolder_name);
}

/* tree here is the 'destination' selector, not 'self' */
static gboolean
emfu_copy_folder_exclude (EMFolderTree *tree,
                          GtkTreeModel *model,
                          GtkTreeIter *iter,
                          gpointer data)
{
    struct _copy_folder_data *cfd = data;
    CamelStore *store;
    const gchar *uid;
    gint fromvfolder, tovfolder;
    guint flags;

    /* handles moving to/from vfolders */

    uid = camel_service_get_uid (CAMEL_SERVICE (cfd->source_store));
    fromvfolder = (g_strcmp0 (uid, E_MAIL_SESSION_VFOLDER_UID) == 0);

    gtk_tree_model_get (
        model, iter,
        COL_UINT_FLAGS, &flags,
        COL_OBJECT_CAMEL_STORE, &store, -1);

    uid = camel_service_get_uid (CAMEL_SERVICE (store));
    tovfolder = (g_strcmp0 (uid, E_MAIL_SESSION_VFOLDER_UID) == 0);
    g_object_unref (store);

    /* moving from vfolder to normal- not allowed */
    if (fromvfolder && !tovfolder && cfd->delete)
        return FALSE;
    /* copy/move from normal folder to vfolder - not allowed */
    if (!fromvfolder && tovfolder)
        return FALSE;
    /* copying to vfolder - not allowed */
    if (tovfolder && !cfd->delete)
        return FALSE;

    return (flags & EMFT_EXCLUDE_NOINFERIORS) == 0;
}

void
em_folder_utils_copy_folder (GtkWindow *parent,
                             EMailSession *session,
                             EAlertSink *alert_sink,
                             const gchar *folder_uri,
                             gint delete)
{
    GtkWidget *dialog;
    EMFolderSelector *selector;
    EMFolderTree *folder_tree;
    EMFolderTreeModel *model;
    const gchar *label;
    const gchar *title;
    struct _copy_folder_data *cfd;
    GError *error = NULL;

    g_return_if_fail (E_IS_MAIL_SESSION (session));
    g_return_if_fail (E_IS_ALERT_SINK (alert_sink));
    g_return_if_fail (folder_uri != NULL);

    cfd = g_malloc (sizeof (*cfd));
    cfd->delete = delete;

    e_mail_folder_uri_parse (
        CAMEL_SESSION (session), folder_uri,
        &cfd->source_store, &cfd->source_folder_name, &error);

    if (error != NULL) {
        e_notice (parent, GTK_MESSAGE_ERROR, "%s", error->message);
        g_error_free (error);
        g_free (cfd);
        return;
    }

    label = delete ? _("_Move") : _("C_opy");
    title = delete ? _("Move Folder To") : _("Copy Folder To");

    model = em_folder_tree_model_get_default ();

    dialog = em_folder_selector_new (parent, model);

    gtk_window_set_title (GTK_WINDOW (dialog), title);

    selector = EM_FOLDER_SELECTOR (dialog);
    em_folder_selector_set_can_create (selector, TRUE);
    em_folder_selector_set_default_button_label (selector, label);

    folder_tree = em_folder_selector_get_folder_tree (selector);

    em_folder_tree_set_excluded_func (
        folder_tree, emfu_copy_folder_exclude, cfd);

    if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK) {
        const gchar *uri;

        uri = em_folder_selector_get_selected_uri (selector);
        emfu_copy_folder_selected (session, alert_sink, uri, cfd);
    }

    gtk_widget_destroy (dialog);
}

const gchar *
em_folder_utils_get_icon_name (guint32 flags)
{
    const gchar *icon_name;

    switch (flags & CAMEL_FOLDER_TYPE_MASK) {
        case CAMEL_FOLDER_TYPE_INBOX:
            icon_name = "mail-inbox";
            break;
        case CAMEL_FOLDER_TYPE_OUTBOX:
            icon_name = "mail-outbox";
            break;
        case CAMEL_FOLDER_TYPE_TRASH:
            icon_name = "user-trash";
            break;
        case CAMEL_FOLDER_TYPE_JUNK:
            icon_name = "mail-mark-junk";
            break;
        case CAMEL_FOLDER_TYPE_SENT:
            icon_name = "mail-sent";
            break;
        case CAMEL_FOLDER_TYPE_CONTACTS:
            icon_name = "x-office-address-book";
            break;
        case CAMEL_FOLDER_TYPE_EVENTS:
            icon_name = "x-office-calendar";
            break;
        case CAMEL_FOLDER_TYPE_MEMOS:
            icon_name = "evolution-memos";
            break;
        case CAMEL_FOLDER_TYPE_TASKS:
            icon_name = "evolution-tasks";
            break;
        default:
            if (flags & CAMEL_FOLDER_SHARED_TO_ME)
                icon_name = "stock_shared-to-me";
            else if (flags & CAMEL_FOLDER_SHARED_BY_ME)
                icon_name = "stock_shared-by-me";
            else if (flags & CAMEL_FOLDER_VIRTUAL)
                icon_name = "folder-saved-search";
            else
                icon_name = "folder";
    }

    return icon_name;
}