/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- * * Copyright (C) 2004-2005 James M. Cape . * Copyright (C) 2007-2008 William Jon McCann * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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 General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include #include #include #include #include #include #include #include "gdm-user-manager.h" #include "gdm-user-private.h" #define GDM_USER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDM_TYPE_USER, GdmUserClass)) #define GDM_IS_USER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDM_TYPE_USER)) #define GDM_USER_GET_CLASS(object) (G_TYPE_INSTANCE_GET_CLASS ((object), GDM_TYPE_USER, GdmUserClass)) #define GLOBAL_FACEDIR DATADIR "/faces" #define MAX_ICON_SIZE 128 #define MAX_FILE_SIZE 65536 #define MINIMAL_UID 100 enum { PROP_0, PROP_MANAGER, PROP_REAL_NAME, PROP_DISPLAY_NAME, PROP_USER_NAME, PROP_UID, PROP_HOME_DIR, PROP_SHELL, PROP_LOGIN_FREQUENCY, }; enum { ICON_CHANGED, SESSIONS_CHANGED, LAST_SIGNAL }; struct _GdmUser { GObject parent; GdmUserManager *manager; uid_t uid; char *user_name; char *real_name; char *display_name; char *home_dir; char *shell; GList *sessions; gulong login_frequency; GFileMonitor *icon_monitor; }; typedef struct _GdmUserClass { GObjectClass parent_class; void (* icon_changed) (GdmUser *user); void (* sessions_changed) (GdmUser *user); } GdmUserClass; static void gdm_user_finalize (GObject *object); static guint signals[LAST_SIGNAL] = { 0 }; G_DEFINE_TYPE (GdmUser, gdm_user, G_TYPE_OBJECT) static int session_compare (const char *a, const char *b) { if (a == NULL) { return 1; } else if (b == NULL) { return -1; } return strcmp (a, b); } void _gdm_user_add_session (GdmUser *user, const char *ssid) { GList *li; g_return_if_fail (GDM_IS_USER (user)); g_return_if_fail (ssid != NULL); li = g_list_find_custom (user->sessions, ssid, (GCompareFunc)session_compare); if (li == NULL) { g_debug ("GdmUser: adding session %s", ssid); user->sessions = g_list_prepend (user->sessions, g_strdup (ssid)); g_signal_emit (user, signals[SESSIONS_CHANGED], 0); } else { g_debug ("GdmUser: session already present: %s", ssid); } } void _gdm_user_remove_session (GdmUser *user, const char *ssid) { GList *li; g_return_if_fail (GDM_IS_USER (user)); g_return_if_fail (ssid != NULL); li = g_list_find_custom (user->sessions, ssid, (GCompareFunc)session_compare); if (li != NULL) { g_debug ("GdmUser: removing session %s", ssid); g_free (li->data); user->sessions = g_list_delete_link (user->sessions, li); g_signal_emit (user, signals[SESSIONS_CHANGED], 0); } else { g_debug ("GdmUser: session not found: %s", ssid); } } guint gdm_user_get_num_sessions (GdmUser *user) { return g_list_length (user->sessions); } GList * gdm_user_get_sessions (GdmUser *user) { return user->sessions; } static void _gdm_user_set_login_frequency (GdmUser *user, gulong login_frequency) { user->login_frequency = login_frequency; g_object_notify (G_OBJECT (user), "login-frequency"); } static void gdm_user_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GdmUser *user; user = GDM_USER (object); switch (param_id) { case PROP_MANAGER: user->manager = g_value_get_object (value); g_assert (user->manager); break; case PROP_LOGIN_FREQUENCY: _gdm_user_set_login_frequency (user, g_value_get_ulong (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gdm_user_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GdmUser *user; user = GDM_USER (object); switch (param_id) { case PROP_MANAGER: g_value_set_object (value, user->manager); break; case PROP_USER_NAME: g_value_set_string (value, user->user_name); break; case PROP_REAL_NAME: g_value_set_string (value, user->real_name); break; case PROP_DISPLAY_NAME: g_value_set_string (value, user->display_name); break; case PROP_HOME_DIR: g_value_set_string (value, user->home_dir); break; case PROP_UID: g_value_set_ulong (value, user->uid); break; case PROP_SHELL: g_value_set_string (value, user->shell); break; case PROP_LOGIN_FREQUENCY: g_value_set_ulong (value, user->login_frequency); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec); break; } } static void gdm_user_class_init (GdmUserClass *class) { GObjectClass *gobject_class; gobject_class = G_OBJECT_CLASS (class); gobject_class->set_property = gdm_user_set_property; gobject_class->get_property = gdm_user_get_property; gobject_class->finalize = gdm_user_finalize; g_object_class_install_property (gobject_class, PROP_MANAGER, g_param_spec_object ("manager", _("Manager"), _("The user manager object this user is controlled by."), GDM_TYPE_USER_MANAGER, (G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY))); g_object_class_install_property (gobject_class, PROP_REAL_NAME, g_param_spec_string ("real-name", "Real Name", "The real name to display for this user.", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_DISPLAY_NAME, g_param_spec_string ("display-name", "Display Name", "The unique name to display for this user.", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_UID, g_param_spec_ulong ("uid", "User ID", "The UID for this user.", 0, G_MAXULONG, 0, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_USER_NAME, g_param_spec_string ("user-name", "User Name", "The login name for this user.", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_HOME_DIR, g_param_spec_string ("home-directory", "Home Directory", "The home directory for this user.", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_SHELL, g_param_spec_string ("shell", "Shell", "The shell for this user.", NULL, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_LOGIN_FREQUENCY, g_param_spec_ulong ("login-frequency", "login frequency", "login frequency", 0, G_MAXULONG, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); signals [ICON_CHANGED] = g_signal_new ("icon-changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdmUserClass, icon_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals [SESSIONS_CHANGED] = g_signal_new ("sessions-changed", G_TYPE_FROM_CLASS (class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GdmUserClass, sessions_changed), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void on_icon_monitor_changed (GFileMonitor *monitor, GFile *file, GFile *other_file, GFileMonitorEvent event_type, GdmUser *user) { g_debug ("Icon changed: %d", event_type); if (event_type != G_FILE_MONITOR_EVENT_CHANGED && event_type != G_FILE_MONITOR_EVENT_CREATED) { return; } _gdm_user_icon_changed (user); } static void update_icon_monitor (GdmUser *user) { GFile *file; GError *error; char *path; if (user->home_dir == NULL) { return; } if (user->icon_monitor != NULL) { g_file_monitor_cancel (user->icon_monitor); user->icon_monitor = NULL; } path = g_build_filename (user->home_dir, ".face", NULL); g_debug ("adding monitor for '%s'", path); file = g_file_new_for_path (path); error = NULL; user->icon_monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error); if (user->icon_monitor != NULL) { g_signal_connect (user->icon_monitor, "changed", G_CALLBACK (on_icon_monitor_changed), user); } else { g_warning ("Unable to monitor %s: %s", path, error->message); g_error_free (error); } g_object_unref (file); g_free (path); } static void gdm_user_init (GdmUser *user) { user->manager = NULL; user->user_name = NULL; user->real_name = NULL; user->display_name = NULL; user->sessions = NULL; } static void gdm_user_finalize (GObject *object) { GdmUser *user; user = GDM_USER (object); g_file_monitor_cancel (user->icon_monitor); g_free (user->user_name); g_free (user->real_name); g_free (user->display_name); if (G_OBJECT_CLASS (gdm_user_parent_class)->finalize) (*G_OBJECT_CLASS (gdm_user_parent_class)->finalize) (object); } /** * _gdm_user_update: * @user: the user object to update. * @pwent: the user data to use. * * Updates the properties of @user using the data in @pwent. * * Since: 1.0 **/ void _gdm_user_update (GdmUser *user, const struct passwd *pwent) { gchar *real_name = NULL; g_return_if_fail (GDM_IS_USER (user)); g_return_if_fail (pwent != NULL); g_object_freeze_notify (G_OBJECT (user)); /* Display Name */ if (pwent->pw_gecos && pwent->pw_gecos[0] != '\0') { gchar *first_comma = NULL; gchar *valid_utf8_name = NULL; if (g_utf8_validate (pwent->pw_gecos, -1, NULL)) { valid_utf8_name = pwent->pw_gecos; first_comma = g_utf8_strchr (valid_utf8_name, -1, ','); } else { g_warning ("User %s has invalid UTF-8 in GECOS field. " "It would be a good thing to check /etc/passwd.", pwent->pw_name ? pwent->pw_name : ""); } if (first_comma) { real_name = g_strndup (valid_utf8_name, (first_comma - valid_utf8_name)); } else if (valid_utf8_name) { real_name = g_strdup (valid_utf8_name); } else { real_name = NULL; } if (real_name && real_name[0] == '\0') { g_free (real_name); real_name = NULL; } } else { real_name = NULL; } if ((real_name && !user->real_name) || (!real_name && user->real_name) || (real_name && user->real_name && strcmp (real_name, user->real_name) != 0)) { g_free (user->real_name); user->real_name = real_name; g_object_notify (G_OBJECT (user), "real-name"); } else { g_free (real_name); } /* Unique Display Name */ if ((!user->real_name && user->display_name) || (user->real_name && user->display_name && strncmp (user->real_name, user->display_name, strlen (user->real_name)) != 0)) { g_free (user->display_name); user->display_name = NULL; g_object_notify (G_OBJECT (user), "display-name"); } /* UID */ if (pwent->pw_uid != user->uid) { user->uid = pwent->pw_uid; g_object_notify (G_OBJECT (user), "uid"); } /* Username */ if ((pwent->pw_name && !user->user_name) || (!pwent->pw_name && user->user_name) || (pwent->pw_name && user->user_name && strcmp (user->user_name, pwent->pw_name) != 0)) { g_free (user->user_name); user->user_name = g_strdup (pwent->pw_name); g_object_notify (G_OBJECT (user), "user-name"); } /* Home Directory */ if ((pwent->pw_dir && !user->home_dir) || (!pwent->pw_dir && user->home_dir) || strcmp (user->home_dir, pwent->pw_dir) != 0) { g_free (user->home_dir); user->home_dir = g_strdup (pwent->pw_dir); g_object_notify (G_OBJECT (user), "home-directory"); g_signal_emit (user, signals[ICON_CHANGED], 0); } /* Shell */ if ((pwent->pw_shell && !user->shell) || (!pwent->pw_shell && user->shell) || (pwent->pw_shell && user->shell && strcmp (user->shell, pwent->pw_shell) != 0)) { g_free (user->shell); user->shell = g_strdup (pwent->pw_shell); g_object_notify (G_OBJECT (user), "shell"); } update_icon_monitor (user); g_object_thaw_notify (G_OBJECT (user)); } /** * _gdm_user_icon_changed: * @user: the user to emit the signal for. * * Emits the "icon-changed" signal for @user. * * Since: 1.0 **/ void _gdm_user_icon_changed (GdmUser *user) { g_return_if_fail (GDM_IS_USER (user)); g_signal_emit (user, signals[ICON_CHANGED], 0); } /** * gdm_user_get_uid: * @user: the user object to examine. * * Retrieves the ID of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ uid_t gdm_user_get_uid (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), -1); return user->uid; } /** * gdm_user_get_real_name: * @user: the user object to examine. * * Retrieves the display name of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ G_CONST_RETURN gchar * gdm_user_get_real_name (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), NULL); return (user->real_name ? user->real_name : user->user_name); } /** * gdm_user_get_display_name: * @user: the user object to examine. * * Retrieves the unique display name of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ G_CONST_RETURN gchar * gdm_user_get_display_name (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), NULL); return (user->display_name ? user->display_name : gdm_user_get_real_name (user)); } /** * gdm_user_get_user_name: * @user: the user object to examine. * * Retrieves the login name of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ G_CONST_RETURN gchar * gdm_user_get_user_name (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), NULL); return user->user_name; } /** * gdm_user_get_home_directory: * @user: the user object to examine. * * Retrieves the home directory of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ G_CONST_RETURN gchar * gdm_user_get_home_directory (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), NULL); return user->home_dir; } /** * gdm_user_get_shell: * @user: the user object to examine. * * Retrieves the login shell of @user. * * Returns: a pointer to an array of characters which must not be modified or * freed, or %NULL. * * Since: 1.0 **/ G_CONST_RETURN gchar * gdm_user_get_shell (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), NULL); return user->shell; } gulong gdm_user_get_login_frequency (GdmUser *user) { g_return_val_if_fail (GDM_IS_USER (user), 0); return user->login_frequency; } /** * _gdm_user_show_full_display_name: * @user: the user object to examine. * * Updates the unique display name of @user to "Real Name (username)". * * Since: 1.0 **/ void _gdm_user_show_full_display_name (GdmUser *user) { char *uniq_name; g_return_if_fail (GDM_IS_USER (user)); if (user->real_name != NULL) { uniq_name = g_strdup_printf ("%s (%s)", user->real_name, user->user_name); } else { uniq_name = NULL; } if ((user->real_name && !user->display_name) || (!user->real_name && user->display_name) || (user->real_name && user->display_name && strcmp (uniq_name, user->display_name) != 0)) { g_free (user->display_name); user->display_name = uniq_name; g_object_notify (G_OBJECT (user), "display-name"); } else { g_free (uniq_name); } } /** * _gdm_user_show_short_display_name: * @user: the user object to examine. * * Resets the unique display name of @user. * * Since: 1.0 **/ void _gdm_user_show_short_display_name (GdmUser *user) { g_return_if_fail (GDM_IS_USER (user)); if (user->display_name) { g_free (user->display_name); user->display_name = NULL; g_object_notify (G_OBJECT (user), "display-name"); } } int gdm_user_collate (GdmUser *user1, GdmUser *user2) { const char *str1; const char *str2; gulong num1; gulong num2; g_return_val_if_fail (GDM_IS_USER (user1), 0); g_return_val_if_fail (GDM_IS_USER (user2), 0); if (user1->real_name != NULL) { str1 = user1->real_name; } else { str1 = user1->user_name; } if (user2->real_name != NULL) { str2 = user2->real_name; } else { str2 = user2->user_name; } num1 = user1->login_frequency; num2 = user2->login_frequency; g_debug ("Login freq 1=%u 2=%u", (guint)num1, (guint)num2); if (num1 > num2) { return -1; } if (num1 < num2) { return 1; } /* if login frequency is equal try names */ if (str1 == NULL && str2 != NULL) { return -1; } if (str1 != NULL && str2 == NULL) { return 1; } if (str1 == NULL && str2 == NULL) { return 0; } return g_utf8_collate (str1, str2); } static gboolean check_user_file (const char *filename, gssize max_file_size) { struct stat fileinfo; if (max_file_size < 0) { max_file_size = G_MAXSIZE; } /* Exists/Readable? */ if (stat (filename, &fileinfo) < 0) { g_debug ("File does not exist"); return FALSE; } /* Is a regular file */ if (G_UNLIKELY (!S_ISREG (fileinfo.st_mode))) { g_debug ("File is not a regular file"); return FALSE; } /* Size is kosher? */ if (G_UNLIKELY (fileinfo.st_size > max_file_size)) { g_debug ("File is too large"); return FALSE; } return TRUE; } static char * get_filesystem_type (const char *path) { GFile *file; GFileInfo *file_info; GError *error; char *filesystem_type; file = g_file_new_for_path (path); error = NULL; file_info = g_file_query_filesystem_info (file, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE, NULL, &error); if (file_info == NULL) { g_warning ("Unable to query filesystem type for %s: %s", path, error->message); g_error_free (error); g_object_unref (file); return NULL; } filesystem_type = g_strdup (g_file_info_get_attribute_string (file_info, G_FILE_ATTRIBUTE_FILESYSTEM_TYPE)); if (filesystem_type == NULL) { g_warning ("GIO returned NULL filesystem type for %s", path); } g_object_unref (file); g_object_unref (file_info); return filesystem_type; } static GdkPixbuf * render_icon_from_cache (GdmUser *user, int icon_size) { GdkPixbuf *retval; char *path; gboolean is_autofs; gboolean res; char *filesystem_type; path = g_build_filename (GDM_CACHE_DIR, user->user_name, "face", NULL); res = check_user_file (path, MAX_FILE_SIZE); if (res) { retval = gdk_pixbuf_new_from_file_at_size (path, icon_size, icon_size, NULL); } else { g_debug ("Could not access face icon %s", path); retval = NULL; } g_free (path); return retval; } static void rounded_rectangle (cairo_t *cr, gdouble aspect, gdouble x, gdouble y, gdouble corner_radius, gdouble width, gdouble height) { gdouble radius; gdouble degrees; radius = corner_radius / aspect; degrees = G_PI / 180.0; cairo_new_sub_path (cr); cairo_arc (cr, x + width - radius, y + radius, radius, -90 * degrees, 0 * degrees); cairo_arc (cr, x + width - radius, y + height - radius, radius, 0 * degrees, 90 * degrees); cairo_arc (cr, x + radius, y + height - radius, radius, 90 * degrees, 180 * degrees); cairo_arc (cr, x + radius, y + radius, radius, 180 * degrees, 270 * degrees); cairo_close_path (cr); } static cairo_surface_t * surface_from_pixbuf (GdkPixbuf *pixbuf) { cairo_surface_t *surface; cairo_t *cr; surface = cairo_image_surface_create (gdk_pixbuf_get_has_alpha (pixbuf) ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24, gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf)); cr = cairo_create (surface); gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0); cairo_paint (cr); cairo_destroy (cr); return surface; } /** * go_cairo_convert_data_to_pixbuf: * @src: a pointer to pixel data in cairo format * @dst: a pointer to pixel data in pixbuf format * @width: image width * @height: image height * @rowstride: data rowstride * * Converts the pixel data stored in @src in CAIRO_FORMAT_ARGB32 cairo format * to GDK_COLORSPACE_RGB pixbuf format and move them * to @dst. If @src == @dst, pixel are converted in place. **/ static void go_cairo_convert_data_to_pixbuf (unsigned char *dst, unsigned char const *src, int width, int height, int rowstride) { int i,j; unsigned int t; unsigned char a, b, c; g_return_if_fail (dst != NULL); #define MULT(d,c,a,t) G_STMT_START { t = (a)? c * 255 / a: 0; d = t;} G_STMT_END if (src == dst || src == NULL) { for (i = 0; i < height; i++) { for (j = 0; j < width; j++) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN MULT(a, dst[2], dst[3], t); MULT(b, dst[1], dst[3], t); MULT(c, dst[0], dst[3], t); dst[0] = a; dst[1] = b; dst[2] = c; #else MULT(a, dst[1], dst[0], t); MULT(b, dst[2], dst[0], t); MULT(c, dst[3], dst[0], t); dst[3] = dst[0]; dst[0] = a; dst[1] = b; dst[2] = c; #endif dst += 4; } dst += rowstride - width * 4; } } else { for (i = 0; i < height; i++) { for (j = 0; j < width; j++) { #if G_BYTE_ORDER == G_LITTLE_ENDIAN MULT(dst[0], src[2], src[3], t); MULT(dst[1], src[1], src[3], t); MULT(dst[2], src[0], src[3], t); dst[3] = src[3]; #else MULT(dst[0], src[1], src[0], t); MULT(dst[1], src[2], src[0], t); MULT(dst[2], src[3], src[0], t); dst[3] = src[0]; #endif src += 4; dst += 4; } src += rowstride - width * 4; dst += rowstride - width * 4; } } #undef MULT } static void cairo_to_pixbuf (guint8 *src_data, GdkPixbuf *dst_pixbuf) { unsigned char *src; unsigned char *dst; guint w; guint h; guint rowstride; w = gdk_pixbuf_get_width (dst_pixbuf); h = gdk_pixbuf_get_height (dst_pixbuf); rowstride = gdk_pixbuf_get_rowstride (dst_pixbuf); dst = gdk_pixbuf_get_pixels (dst_pixbuf); src = src_data; go_cairo_convert_data_to_pixbuf (dst, src, w, h, rowstride); } static GdkPixbuf * frame_pixbuf (GdkPixbuf *source) { GdkPixbuf *dest; cairo_t *cr; cairo_surface_t *surface; guint w; guint h; guint rowstride; int frame_width; double radius; guint8 *data; frame_width = 2; w = gdk_pixbuf_get_width (source) + frame_width * 2; h = gdk_pixbuf_get_height (source) + frame_width * 2; radius = w / 10; dest = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, w, h); rowstride = gdk_pixbuf_get_rowstride (dest); data = g_new0 (guint8, h * rowstride); surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_ARGB32, w, h, rowstride); cr = cairo_create (surface); cairo_surface_destroy (surface); /* set up image */ cairo_rectangle (cr, 0, 0, w, h); cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0); cairo_fill (cr); rounded_rectangle (cr, 1.0, frame_width + 0.5, frame_width + 0.5, radius, w - frame_width * 2 - 1, h - frame_width * 2 - 1); cairo_set_source_rgba (cr, 0.5, 0.5, 0.5, 0.3); cairo_fill_preserve (cr); surface = surface_from_pixbuf (source); cairo_set_source_surface (cr, surface, frame_width, frame_width); cairo_fill (cr); cairo_surface_destroy (surface); cairo_to_pixbuf (data, dest); cairo_destroy (cr); g_free (data); return dest; } GdkPixbuf * gdm_user_render_icon (GdmUser *user, gint icon_size) { GdkPixbuf *pixbuf; GdkPixbuf *framed; char *path; char *tmp; gboolean res; g_return_val_if_fail (GDM_IS_USER (user), NULL); g_return_val_if_fail (icon_size > 12, NULL); path = NULL; pixbuf = render_icon_from_cache (user, icon_size); if (pixbuf != NULL) { goto out; } /* Try ${GlobalFaceDir}/${username} */ path = g_build_filename (GLOBAL_FACEDIR, user->user_name, NULL); res = check_user_file (path, MAX_FILE_SIZE); if (res) { pixbuf = gdk_pixbuf_new_from_file_at_size (path, icon_size, icon_size, NULL); } else { g_debug ("Could not access global face icon %s", path); pixbuf = NULL; } g_free (path); if (pixbuf != NULL) { goto out; } /* Finally, ${GlobalFaceDir}/${username}.png */ tmp = g_strconcat (user->user_name, ".png", NULL); path = g_build_filename (GLOBAL_FACEDIR, tmp, NULL); g_free (tmp); res = check_user_file (path, MAX_FILE_SIZE); if (res) { pixbuf = gdk_pixbuf_new_from_file_at_size (path, icon_size, icon_size, NULL); } else { g_debug ("Could not access global face icon %s", path); pixbuf = NULL; } g_free (path); out: if (pixbuf != NULL) { framed = frame_pixbuf (pixbuf); if (framed != NULL) { g_object_unref (pixbuf); pixbuf = framed; } } return pixbuf; }