664 lines
24 KiB
C
664 lines
24 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright 2009-2010 Red Hat, Inc,
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Written by: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include <math.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <limits.h>
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#include <unistd.h>
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#include <utmpx.h>
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#include <pwd.h>
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#include <gio/gio.h>
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#include <glib/gi18n.h>
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#include "um-utils.h"
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typedef struct {
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gchar *text;
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gchar *placeholder_str;
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GIcon *icon;
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gunichar placeholder;
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gulong query_id;
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} IconShapeData;
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static IconShapeData *
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icon_shape_data_new (const gchar *text,
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const gchar *placeholder,
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GIcon *icon)
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{
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IconShapeData *data;
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data = g_new0 (IconShapeData, 1);
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data->text = g_strdup (text);
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data->placeholder_str = g_strdup (placeholder);
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data->placeholder = g_utf8_get_char_validated (placeholder, -1);
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data->icon = g_object_ref (icon);
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return data;
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}
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static void
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icon_shape_data_free (gpointer user_data)
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{
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IconShapeData *data = user_data;
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g_free (data->text);
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g_free (data->placeholder_str);
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g_object_unref (data->icon);
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g_free (data);
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}
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static void
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icon_shape_renderer (cairo_t *cr,
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PangoAttrShape *attr,
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gboolean do_path,
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gpointer user_data)
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{
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IconShapeData *data = user_data;
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gdouble x, y;
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cairo_get_current_point (cr, &x, &y);
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if (GPOINTER_TO_UINT (attr->data) == data->placeholder) {
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gdouble ascent;
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gdouble height;
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GdkPixbuf *pixbuf;
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GtkIconInfo *info;
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ascent = pango_units_to_double (attr->ink_rect.y);
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height = pango_units_to_double (attr->ink_rect.height);
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info = gtk_icon_theme_lookup_by_gicon (gtk_icon_theme_get_default (),
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data->icon,
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(gint)height,
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GTK_ICON_LOOKUP_FORCE_SIZE | GTK_ICON_LOOKUP_USE_BUILTIN);
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pixbuf = gtk_icon_info_load_icon (info, NULL);
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g_object_unref (info);
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cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
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cairo_reset_clip (cr);
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gdk_cairo_set_source_pixbuf (cr, pixbuf, x, y + ascent);
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cairo_paint (cr);
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g_object_unref (pixbuf);
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}
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}
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static PangoAttrList *
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create_shape_attr_list_for_layout (PangoLayout *layout,
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IconShapeData *data)
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{
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PangoAttrList *attrs;
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PangoFontMetrics *metrics;
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gint ascent, descent;
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PangoRectangle ink_rect, logical_rect;
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const gchar *p;
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const gchar *text;
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gint placeholder_len;
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/* Get font metrics and prepare fancy shape size */
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metrics = pango_context_get_metrics (pango_layout_get_context (layout),
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pango_layout_get_font_description (layout),
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NULL);
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ascent = pango_font_metrics_get_ascent (metrics);
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descent = pango_font_metrics_get_descent (metrics);
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pango_font_metrics_unref (metrics);
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logical_rect.x = 0;
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logical_rect.y = - ascent;
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logical_rect.width = ascent + descent;
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logical_rect.height = ascent + descent;
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ink_rect = logical_rect;
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attrs = pango_attr_list_new ();
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text = pango_layout_get_text (layout);
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placeholder_len = strlen (data->placeholder_str);
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for (p = text; (p = strstr (p, data->placeholder_str)); p += placeholder_len) {
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PangoAttribute *attr;
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attr = pango_attr_shape_new_with_data (&ink_rect,
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&logical_rect,
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GUINT_TO_POINTER (g_utf8_get_char (p)),
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NULL, NULL);
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attr->start_index = p - text;
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attr->end_index = attr->start_index + placeholder_len;
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pango_attr_list_insert (attrs, attr);
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}
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return attrs;
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}
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static gboolean
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query_unlock_tooltip (GtkWidget *widget,
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gint x,
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gint y,
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gboolean keyboard_tooltip,
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GtkTooltip *tooltip,
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gpointer user_data)
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{
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GtkWidget *label;
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PangoLayout *layout;
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PangoAttrList *attrs;
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IconShapeData *data;
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data = g_object_get_data (G_OBJECT (widget), "icon-shape-data");
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label = g_object_get_data (G_OBJECT (widget), "tooltip-label");
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if (label == NULL) {
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label = gtk_label_new (data->text);
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g_object_ref_sink (label);
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g_object_set_data_full (G_OBJECT (widget),
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"tooltip-label", label, g_object_unref);
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}
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layout = gtk_label_get_layout (GTK_LABEL (label));
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pango_cairo_context_set_shape_renderer (pango_layout_get_context (layout),
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icon_shape_renderer,
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data, NULL);
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attrs = create_shape_attr_list_for_layout (layout, data);
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gtk_label_set_attributes (GTK_LABEL (label), attrs);
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pango_attr_list_unref (attrs);
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gtk_tooltip_set_custom (tooltip, label);
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return TRUE;
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}
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void
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setup_tooltip_with_embedded_icon (GtkWidget *widget,
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const gchar *text,
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const gchar *placeholder,
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GIcon *icon)
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{
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IconShapeData *data;
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data = g_object_get_data (G_OBJECT (widget), "icon-shape-data");
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if (data) {
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gtk_widget_set_has_tooltip (widget, FALSE);
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g_signal_handler_disconnect (widget, data->query_id);
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g_object_set_data (G_OBJECT (widget), "icon-shape-data", NULL);
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g_object_set_data (G_OBJECT (widget), "tooltip-label", NULL);
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}
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if (!placeholder) {
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gtk_widget_set_tooltip_text (widget, text);
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return;
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}
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data = icon_shape_data_new (text, placeholder, icon);
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g_object_set_data_full (G_OBJECT (widget),
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"icon-shape-data",
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data,
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icon_shape_data_free);
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gtk_widget_set_has_tooltip (widget, TRUE);
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data->query_id = g_signal_connect (widget, "query-tooltip",
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G_CALLBACK (query_unlock_tooltip), NULL);
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}
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gboolean
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show_tooltip_now (GtkWidget *widget,
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GdkEvent *event)
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{
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GtkSettings *settings;
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gint timeout;
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settings = gtk_widget_get_settings (widget);
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g_object_get (settings, "gtk-tooltip-timeout", &timeout, NULL);
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g_object_set (settings, "gtk-tooltip-timeout", 1, NULL);
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gtk_tooltip_trigger_tooltip_query (gtk_widget_get_display (widget));
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g_object_set (settings, "gtk-tooltip-timeout", timeout, NULL);
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return FALSE;
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}
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static gboolean
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query_tooltip (GtkWidget *widget,
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gint x,
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gint y,
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gboolean keyboard_mode,
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GtkTooltip *tooltip,
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gpointer user_data)
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{
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gchar *tip;
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if (GTK_ENTRY_ICON_SECONDARY == gtk_entry_get_icon_at_pos (GTK_ENTRY (widget), x, y)) {
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tip = gtk_entry_get_icon_tooltip_text (GTK_ENTRY (widget),
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GTK_ENTRY_ICON_SECONDARY);
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gtk_tooltip_set_text (tooltip, tip);
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g_free (tip);
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return TRUE;
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}
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else {
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return FALSE;
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}
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}
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static void
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icon_released (GtkEntry *entry,
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GtkEntryIconPosition pos,
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GdkEvent *event,
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gpointer user_data)
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{
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GtkSettings *settings;
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gint timeout;
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settings = gtk_widget_get_settings (GTK_WIDGET (entry));
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g_object_get (settings, "gtk-tooltip-timeout", &timeout, NULL);
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g_object_set (settings, "gtk-tooltip-timeout", 1, NULL);
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gtk_tooltip_trigger_tooltip_query (gtk_widget_get_display (GTK_WIDGET (entry)));
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g_object_set (settings, "gtk-tooltip-timeout", timeout, NULL);
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}
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void
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set_entry_validation_error (GtkEntry *entry,
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const gchar *text)
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{
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g_object_set (entry, "caps-lock-warning", FALSE, NULL);
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gtk_entry_set_icon_from_icon_name (entry,
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GTK_ENTRY_ICON_SECONDARY,
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"dialog-warning-symbolic");
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gtk_entry_set_icon_activatable (entry,
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GTK_ENTRY_ICON_SECONDARY,
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TRUE);
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g_signal_connect (entry, "icon-release",
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G_CALLBACK (icon_released), FALSE);
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g_signal_connect (entry, "query-tooltip",
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G_CALLBACK (query_tooltip), NULL);
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g_object_set (entry, "has-tooltip", TRUE, NULL);
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gtk_entry_set_icon_tooltip_text (entry,
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GTK_ENTRY_ICON_SECONDARY,
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text);
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}
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void
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set_entry_generation_icon (GtkEntry *entry)
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{
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g_object_set (entry, "caps-lock-warning", FALSE, NULL);
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gtk_entry_set_icon_from_icon_name (entry, GTK_ENTRY_ICON_SECONDARY, "system-run-symbolic");
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gtk_entry_set_icon_activatable (entry, GTK_ENTRY_ICON_SECONDARY, TRUE);
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}
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void
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set_entry_validation_checkmark (GtkEntry *entry)
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{
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g_object_set (entry, "caps-lock-warning", FALSE, NULL);
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gtk_entry_set_icon_from_icon_name (entry, GTK_ENTRY_ICON_SECONDARY, "object-select-symbolic");
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gtk_entry_set_icon_activatable (entry, GTK_ENTRY_ICON_SECONDARY, FALSE);
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}
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void
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clear_entry_validation_error (GtkEntry *entry)
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{
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gboolean warning;
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g_object_get (entry, "caps-lock-warning", &warning, NULL);
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if (warning)
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return;
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g_object_set (entry, "has-tooltip", FALSE, NULL);
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gtk_entry_set_icon_from_pixbuf (entry,
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GTK_ENTRY_ICON_SECONDARY,
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NULL);
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g_object_set (entry, "caps-lock-warning", TRUE, NULL);
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}
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/* Taken from defines.h in shadow-utils. On Linux, this value is much smaller
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* than the sysconf limit LOGIN_NAME_MAX, and values larger than this will
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* result in failure when running useradd. We could check UT_NAMESIZE instead,
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* but that is nonstandard. Better to use POSIX utmpx.
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*/
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#define MAXNAMELEN (sizeof (((struct utmpx *)NULL)->ut_user))
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static gboolean
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is_username_used (const gchar *username)
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{
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struct passwd *pwent;
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if (username == NULL || username[0] == '\0') {
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return FALSE;
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}
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pwent = getpwnam (username);
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return pwent != NULL;
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}
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gboolean
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is_valid_name (const gchar *name)
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{
|
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gboolean is_empty = TRUE;
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const gchar *c;
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/* Valid names must contain:
|
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* 1) at least one character.
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* 2) at least one non-"space" character.
|
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*/
|
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for (c = name; *c; c++) {
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gunichar unichar;
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unichar = g_utf8_get_char_validated (c, -1);
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/* Partial UTF-8 sequence or end of string */
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if (unichar == (gunichar) -1 || unichar == (gunichar) -2)
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break;
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/* Check for non-space character */
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if (!g_unichar_isspace (unichar)) {
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is_empty = FALSE;
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break;
|
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}
|
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}
|
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|
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return !is_empty;
|
||
}
|
||
|
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gboolean
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is_valid_username (const gchar *username, gchar **tip)
|
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{
|
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gboolean empty;
|
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gboolean in_use;
|
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gboolean too_long;
|
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gboolean valid;
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const gchar *c;
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if (username == NULL || username[0] == '\0') {
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empty = TRUE;
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in_use = FALSE;
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too_long = FALSE;
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} else {
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empty = FALSE;
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in_use = is_username_used (username);
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too_long = strlen (username) > MAXNAMELEN;
|
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}
|
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valid = TRUE;
|
||
|
||
if (!in_use && !empty && !too_long) {
|
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/* First char must be a letter, and it must only composed
|
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* of ASCII letters, digits, and a '.', '-', '_'
|
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*/
|
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for (c = username; *c; c++) {
|
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if (! ((*c >= 'a' && *c <= 'z') ||
|
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(*c >= 'A' && *c <= 'Z') ||
|
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(*c >= '0' && *c <= '9') ||
|
||
(*c == '_') || (*c == '.') ||
|
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(*c == '-' && c != username)))
|
||
valid = FALSE;
|
||
}
|
||
}
|
||
|
||
valid = !empty && !in_use && !too_long && valid;
|
||
|
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if (!empty && (in_use || too_long || !valid)) {
|
||
if (in_use) {
|
||
*tip = g_strdup (_("Sorry, that user name isn’t available. Please try another."));
|
||
}
|
||
else if (too_long) {
|
||
*tip = g_strdup_printf (_("The username is too long."));
|
||
}
|
||
else if (username[0] == '-') {
|
||
*tip = g_strdup (_("The username cannot start with a “-”."));
|
||
}
|
||
else {
|
||
*tip = g_strdup (_("The username should only consist of upper and lower case letters from a-z, digits and the following characters: . - _"));
|
||
}
|
||
}
|
||
else {
|
||
*tip = g_strdup (_("This will be used to name your home folder and can’t be changed."));
|
||
}
|
||
|
||
return valid;
|
||
}
|
||
|
||
void
|
||
generate_username_choices (const gchar *name,
|
||
GtkListStore *store)
|
||
{
|
||
gboolean in_use, same_as_initial;
|
||
char *lc_name, *ascii_name, *stripped_name;
|
||
char **words1;
|
||
char **words2 = NULL;
|
||
char **w1, **w2;
|
||
char *c;
|
||
char *unicode_fallback = "?";
|
||
GString *first_word, *last_word;
|
||
GString *item0, *item1, *item2, *item3, *item4;
|
||
int len;
|
||
int nwords1, nwords2, i;
|
||
GHashTable *items;
|
||
GtkTreeIter iter;
|
||
|
||
gtk_list_store_clear (store);
|
||
|
||
ascii_name = g_convert_with_fallback (name, -1, "ASCII//TRANSLIT", "UTF-8",
|
||
unicode_fallback, NULL, NULL, NULL);
|
||
|
||
lc_name = g_ascii_strdown (ascii_name, -1);
|
||
|
||
/* Remove all non ASCII alphanumeric chars from the name,
|
||
* apart from the few allowed symbols.
|
||
*
|
||
* We do remove '.', even though it is usually allowed,
|
||
* since it often comes in via an abbreviated middle name,
|
||
* and the dot looks just wrong in the proposals then.
|
||
*/
|
||
stripped_name = g_strnfill (strlen (lc_name) + 1, '\0');
|
||
i = 0;
|
||
for (c = lc_name; *c; c++) {
|
||
if (!(g_ascii_isdigit (*c) || g_ascii_islower (*c) ||
|
||
*c == ' ' || *c == '-' || *c == '_' ||
|
||
/* used to track invalid words, removed below */
|
||
*c == '?') )
|
||
continue;
|
||
|
||
stripped_name[i] = *c;
|
||
i++;
|
||
}
|
||
|
||
if (strlen (stripped_name) == 0) {
|
||
g_free (ascii_name);
|
||
g_free (lc_name);
|
||
g_free (stripped_name);
|
||
return;
|
||
}
|
||
|
||
/* we split name on spaces, and then on dashes, so that we can treat
|
||
* words linked with dashes the same way, i.e. both fully shown, or
|
||
* both abbreviated
|
||
*/
|
||
words1 = g_strsplit_set (stripped_name, " ", -1);
|
||
len = g_strv_length (words1);
|
||
|
||
/* The default item is a concatenation of all words without ? */
|
||
item0 = g_string_sized_new (strlen (stripped_name));
|
||
|
||
g_free (ascii_name);
|
||
g_free (lc_name);
|
||
g_free (stripped_name);
|
||
|
||
/* Concatenate the whole first word with the first letter of each
|
||
* word (item1), and the last word with the first letter of each
|
||
* word (item2). item3 and item4 are symmetrical respectively to
|
||
* item1 and item2.
|
||
*
|
||
* Constant 5 is the max reasonable number of words we may get when
|
||
* splitting on dashes, since we can't guess it at this point,
|
||
* and reallocating would be too bad.
|
||
*/
|
||
item1 = g_string_sized_new (strlen (words1[0]) + len - 1 + 5);
|
||
item3 = g_string_sized_new (strlen (words1[0]) + len - 1 + 5);
|
||
|
||
item2 = g_string_sized_new (strlen (words1[len - 1]) + len - 1 + 5);
|
||
item4 = g_string_sized_new (strlen (words1[len - 1]) + len - 1 + 5);
|
||
|
||
/* again, guess at the max size of names */
|
||
first_word = g_string_sized_new (20);
|
||
last_word = g_string_sized_new (20);
|
||
|
||
nwords1 = 0;
|
||
nwords2 = 0;
|
||
for (w1 = words1; *w1; w1++) {
|
||
if (strlen (*w1) == 0)
|
||
continue;
|
||
|
||
/* skip words with string '?', most likely resulting
|
||
* from failed transliteration to ASCII
|
||
*/
|
||
if (strstr (*w1, unicode_fallback) != NULL)
|
||
continue;
|
||
|
||
nwords1++; /* count real words, excluding empty string */
|
||
|
||
item0 = g_string_append (item0, *w1);
|
||
|
||
words2 = g_strsplit_set (*w1, "-", -1);
|
||
/* reset last word if a new non-empty word has been found */
|
||
if (strlen (*words2) > 0)
|
||
last_word = g_string_set_size (last_word, 0);
|
||
|
||
for (w2 = words2; *w2; w2++) {
|
||
if (strlen (*w2) == 0)
|
||
continue;
|
||
|
||
nwords2++;
|
||
|
||
/* part of the first "toplevel" real word */
|
||
if (nwords1 == 1) {
|
||
item1 = g_string_append (item1, *w2);
|
||
first_word = g_string_append (first_word, *w2);
|
||
}
|
||
else {
|
||
item1 = g_string_append_unichar (item1,
|
||
g_utf8_get_char (*w2));
|
||
item3 = g_string_append_unichar (item3,
|
||
g_utf8_get_char (*w2));
|
||
}
|
||
|
||
/* not part of the last "toplevel" word */
|
||
if (w1 != words1 + len - 1) {
|
||
item2 = g_string_append_unichar (item2,
|
||
g_utf8_get_char (*w2));
|
||
item4 = g_string_append_unichar (item4,
|
||
g_utf8_get_char (*w2));
|
||
}
|
||
|
||
/* always save current word so that we have it if last one reveals empty */
|
||
last_word = g_string_append (last_word, *w2);
|
||
}
|
||
|
||
g_strfreev (words2);
|
||
}
|
||
item2 = g_string_append (item2, last_word->str);
|
||
item3 = g_string_append (item3, first_word->str);
|
||
item4 = g_string_prepend (item4, last_word->str);
|
||
|
||
g_string_truncate (first_word, MAXNAMELEN);
|
||
g_string_truncate (last_word, MAXNAMELEN);
|
||
|
||
g_string_truncate (item0, MAXNAMELEN);
|
||
g_string_truncate (item1, MAXNAMELEN);
|
||
g_string_truncate (item2, MAXNAMELEN);
|
||
g_string_truncate (item3, MAXNAMELEN);
|
||
g_string_truncate (item4, MAXNAMELEN);
|
||
|
||
items = g_hash_table_new (g_str_hash, g_str_equal);
|
||
|
||
in_use = is_username_used (item0->str);
|
||
if (!in_use && !g_ascii_isdigit (item0->str[0])) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, item0->str, -1);
|
||
g_hash_table_insert (items, item0->str, item0->str);
|
||
}
|
||
|
||
in_use = is_username_used (item1->str);
|
||
same_as_initial = (g_strcmp0 (item0->str, item1->str) == 0);
|
||
if (!same_as_initial && nwords2 > 0 && !in_use && !g_ascii_isdigit (item1->str[0])) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, item1->str, -1);
|
||
g_hash_table_insert (items, item1->str, item1->str);
|
||
}
|
||
|
||
/* if there's only one word, would be the same as item1 */
|
||
if (nwords2 > 1) {
|
||
/* add other items */
|
||
in_use = is_username_used (item2->str);
|
||
if (!in_use && !g_ascii_isdigit (item2->str[0]) &&
|
||
!g_hash_table_lookup (items, item2->str)) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, item2->str, -1);
|
||
g_hash_table_insert (items, item2->str, item2->str);
|
||
}
|
||
|
||
in_use = is_username_used (item3->str);
|
||
if (!in_use && !g_ascii_isdigit (item3->str[0]) &&
|
||
!g_hash_table_lookup (items, item3->str)) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, item3->str, -1);
|
||
g_hash_table_insert (items, item3->str, item3->str);
|
||
}
|
||
|
||
in_use = is_username_used (item4->str);
|
||
if (!in_use && !g_ascii_isdigit (item4->str[0]) &&
|
||
!g_hash_table_lookup (items, item4->str)) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, item4->str, -1);
|
||
g_hash_table_insert (items, item4->str, item4->str);
|
||
}
|
||
|
||
/* add the last word */
|
||
in_use = is_username_used (last_word->str);
|
||
if (!in_use && !g_ascii_isdigit (last_word->str[0]) &&
|
||
!g_hash_table_lookup (items, last_word->str)) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, last_word->str, -1);
|
||
g_hash_table_insert (items, last_word->str, last_word->str);
|
||
}
|
||
|
||
/* ...and the first one */
|
||
in_use = is_username_used (first_word->str);
|
||
if (!in_use && !g_ascii_isdigit (first_word->str[0]) &&
|
||
!g_hash_table_lookup (items, first_word->str)) {
|
||
gtk_list_store_append (store, &iter);
|
||
gtk_list_store_set (store, &iter, 0, first_word->str, -1);
|
||
g_hash_table_insert (items, first_word->str, first_word->str);
|
||
}
|
||
}
|
||
|
||
g_hash_table_destroy (items);
|
||
g_strfreev (words1);
|
||
g_string_free (first_word, TRUE);
|
||
g_string_free (last_word, TRUE);
|
||
g_string_free (item0, TRUE);
|
||
g_string_free (item1, TRUE);
|
||
g_string_free (item2, TRUE);
|
||
g_string_free (item3, TRUE);
|
||
g_string_free (item4, TRUE);
|
||
}
|