392f00baf5
Turn all ID param specs into object param specs (e.g. GimpParamImageID becomes GimpParamImage) and convert between IDs and objects in gimpgpparams.c directly above the the wire protocol, so all of app/, libgimp/ and plug-ins/ can deal directly with objects down to the lowest level and not care about IDs. Use the actual object param specs for procedure arguments and return values again instead of a plain g_param_spec_object() and bring back the none_ok parameter. This implies changing the PDB type checking functions to work on pure integers instead of IDs (one can't check whether object creation is possible if performing that check requires the object to already exist). For example gimp_foo_is_valid() becomes gimp_foo_id_is_valid() and is not involved in automatic object creation magic at the protocol level. Added wrappers which still say gimp_foo_is_valid() and take the respective objects. Adapted all code, and it all becomes nicer and less convoluted, even the generated PDB wrappers in app/ and libgimp/.
502 lines
16 KiB
C
502 lines
16 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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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 3 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 <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#define _GNU_SOURCE /* need the POSIX signal API */
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <gio/gio.h>
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#include <glib/gstdio.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "libgimpbase/gimpbase.h"
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#include "core/core-types.h"
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#include "core/gimp.h"
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#include "core/gimpdrawable.h"
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#include "core/gimpimage.h"
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#include "core/gimpitem.h"
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#include "core/gimpparamspecs.h"
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#include "pdb/gimppdb.h"
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#include "errors.h"
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#ifdef G_OS_WIN32
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#include <windows.h>
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#endif
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/* private variables */
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static const gchar * const log_domains[] =
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{
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"Gimp",
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"Gimp-Actions",
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"Gimp-Base",
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"Gimp-Composite",
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"Gimp-Config",
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"Gimp-Core",
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"Gimp-Dialogs",
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"Gimp-Display",
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"Gimp-File",
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"Gimp-GEGL",
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"Gimp-GUI",
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"Gimp-Menus",
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"Gimp-Operations",
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"Gimp-PDB",
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"Gimp-Paint",
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"Gimp-Paint-Funcs",
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"Gimp-Plug-In",
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"Gimp-Text",
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"Gimp-Tools",
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"Gimp-Vectors",
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"Gimp-Widgets",
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"Gimp-XCF",
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"LibGimpBase",
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"LibGimpColor",
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"LibGimpConfig",
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"LibGimpMath",
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"LibGimpModule",
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"LibGimpThumb",
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"LibGimpWidgets"
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};
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static Gimp *the_errors_gimp = NULL;
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static gboolean use_debug_handler = FALSE;
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static GimpStackTraceMode stack_trace_mode = GIMP_STACK_TRACE_QUERY;
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static gchar *full_prog_name = NULL;
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static gchar *backtrace_file = NULL;
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static gchar *backup_path = NULL;
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static guint log_domain_handler_ids[G_N_ELEMENTS (log_domains)];
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static guint gegl_handler_id = 0;
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static guint global_handler_id = 0;
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/* local function prototypes */
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static void gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data);
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static void gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data) G_GNUC_NORETURN;
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static G_GNUC_NORETURN void gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler);
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/* public functions */
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void
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errors_init (Gimp *gimp,
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const gchar *_full_prog_name,
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gboolean _use_debug_handler,
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GimpStackTraceMode _stack_trace_mode,
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const gchar *_backtrace_file)
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{
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gint i;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (_full_prog_name != NULL);
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g_return_if_fail (full_prog_name == NULL);
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#ifdef GIMP_UNSTABLE
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g_printerr ("This is a development version of GIMP. "
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"Debug messages may appear here.\n\n");
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#endif /* GIMP_UNSTABLE */
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the_errors_gimp = gimp;
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use_debug_handler = _use_debug_handler ? TRUE : FALSE;
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stack_trace_mode = _stack_trace_mode;
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full_prog_name = g_strdup (_full_prog_name);
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/* Create parent directories for both the crash and backup files. */
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backtrace_file = g_path_get_dirname (_backtrace_file);
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backup_path = g_build_filename (gimp_directory (), "backups", NULL);
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g_mkdir_with_parents (backtrace_file, S_IRUSR | S_IWUSR | S_IXUSR);
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g_free (backtrace_file);
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backtrace_file = g_strdup (_backtrace_file);
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g_mkdir_with_parents (backup_path, S_IRUSR | S_IWUSR | S_IXUSR);
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g_free (backup_path);
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backup_path = g_build_filename (gimp_directory (), "backups",
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"backup-XXX.xcf", NULL);
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for (i = 0; i < G_N_ELEMENTS (log_domains); i++)
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log_domain_handler_ids[i] = g_log_set_handler (log_domains[i],
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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gegl_handler_id = g_log_set_handler ("GEGL",
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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global_handler_id = g_log_set_handler (NULL,
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G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL,
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gimp_error_log_func, gimp);
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}
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void
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errors_exit (void)
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{
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gint i;
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for (i = 0; i < G_N_ELEMENTS (log_domains); i++)
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g_log_remove_handler (log_domains[i], log_domain_handler_ids[i]);
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g_log_remove_handler ("GEGL", gegl_handler_id);
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g_log_remove_handler (NULL, global_handler_id);
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the_errors_gimp = NULL;
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if (backtrace_file)
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g_free (backtrace_file);
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if (full_prog_name)
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g_free (full_prog_name);
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if (backup_path)
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g_free (backup_path);
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}
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GList *
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errors_recovered (void)
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{
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GList *recovered = NULL;
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gchar *backup_path = g_build_filename (gimp_directory (), "backups", NULL);
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GDir *backup_dir = NULL;
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if ((backup_dir = g_dir_open (backup_path, 0, NULL)))
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{
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const gchar *file;
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while ((file = g_dir_read_name (backup_dir)))
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{
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if (g_str_has_suffix (file, ".xcf"))
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{
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gchar *path = g_build_filename (backup_path, file, NULL);
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if (g_file_test (path, G_FILE_TEST_IS_REGULAR) &&
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! g_file_test (path, G_FILE_TEST_IS_SYMLINK))
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{
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/* A quick basic security check. It is not foolproof,
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* but better than nothing to make sure we are not
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* trying to read, then delete a folder or a symlink
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* to a file outside the backup directory.
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*/
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recovered = g_list_append (recovered, path);
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}
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else
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{
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g_free (path);
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}
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}
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}
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g_dir_close (backup_dir);
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}
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g_free (backup_path);
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return recovered;
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}
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void
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gimp_fatal_error (const gchar *message)
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{
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gimp_eek ("fatal error", message, TRUE);
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}
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void
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gimp_terminate (const gchar *message)
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{
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gimp_eek ("terminated", message, use_debug_handler);
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}
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/* private functions */
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static void
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gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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Gimp *gimp = data;
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GimpCoreConfig *config = gimp->config;
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const gchar *msg_domain = NULL;
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GimpMessageSeverity severity = GIMP_MESSAGE_WARNING;
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gboolean gui_message = TRUE;
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GimpDebugPolicy debug_policy;
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/* All GIMP messages are processed under the same domain, but
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* we need to keep the log domain information for third party
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* messages.
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*/
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if (! g_str_has_prefix (log_domain, "Gimp") &&
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! g_str_has_prefix (log_domain, "LibGimp"))
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msg_domain = log_domain;
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/* If debug policy requires it, WARNING and CRITICAL errors must be
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* routed for appropriate debugging.
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*/
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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switch (flags & G_LOG_LEVEL_MASK)
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{
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case G_LOG_LEVEL_WARNING:
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severity = GIMP_MESSAGE_BUG_WARNING;
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if (debug_policy > GIMP_DEBUG_POLICY_WARNING)
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gui_message = FALSE;
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break;
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case G_LOG_LEVEL_CRITICAL:
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severity = GIMP_MESSAGE_BUG_CRITICAL;
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if (debug_policy > GIMP_DEBUG_POLICY_CRITICAL)
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gui_message = FALSE;
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break;
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}
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if (gimp && gui_message)
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{
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gimp_show_message (gimp, NULL, severity, msg_domain, message);
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}
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else
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{
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const gchar *reason = "Message";
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gimp_enum_get_value (GIMP_TYPE_MESSAGE_SEVERITY, severity,
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NULL, NULL, &reason, NULL);
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g_printerr ("%s: %s-%s: %s\n",
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gimp_filename_to_utf8 (full_prog_name),
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log_domain, reason, message);
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}
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}
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static void
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gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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gimp_fatal_error (message);
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}
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static void
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gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler)
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{
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GimpCoreConfig *config = the_errors_gimp->config;
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gboolean eek_handled = FALSE;
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GimpDebugPolicy debug_policy;
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GList *iter;
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gint num_idx;
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gint i = 0;
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/* GIMP has 2 ways to handle termination signals and fatal errors: one
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* is the stack trace mode which is set at start as command line
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* option --stack-trace-mode, this won't change for the length of the
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* session and outputs a trace in terminal; the other is set in
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* preferences, outputs a trace in a GUI and can change anytime during
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* the session.
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* The GUI backtrace has priority if it is set.
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*/
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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/* Let's just always output on stdout at least so that there is a
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* trace if the rest fails. */
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g_printerr ("%s: %s: %s\n", full_prog_name, reason, message);
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#if ! defined (G_OS_WIN32) || defined (HAVE_EXCHNDL)
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if (use_handler)
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{
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#ifndef GIMP_CONSOLE_COMPILATION
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if (debug_policy != GIMP_DEBUG_POLICY_NEVER &&
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! the_errors_gimp->no_interface &&
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backtrace_file)
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{
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FILE *fd;
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gboolean has_backtrace = TRUE;
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/* If GUI backtrace enabled (it is disabled by default), it
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* takes precedence over the command line argument.
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*/
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#ifdef G_OS_WIN32
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION ".exe";
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#elif defined (PLATFORM_OSX)
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION;
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#else
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const gchar *gimpdebug = LIBEXECDIR "/gimp-debug-tool-" GIMP_TOOL_VERSION;
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#endif
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gchar *args[7] = { (gchar *) gimpdebug, full_prog_name, NULL,
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(gchar *) reason, (gchar *) message,
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backtrace_file, NULL };
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gchar pid[16];
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g_snprintf (pid, 16, "%u", (guint) getpid ());
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args[2] = pid;
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#ifndef G_OS_WIN32
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/* On Win32, the trace has already been processed by ExcHnl
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* and is waiting for us in a text file.
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*/
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fd = g_fopen (backtrace_file, "w");
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has_backtrace = gimp_stack_trace_print ((const gchar *) full_prog_name,
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fd, NULL);
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fclose (fd);
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#endif
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/* We don't care about any return value. If it fails, too
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* bad, we just won't have any stack trace.
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* We still need to use the sync() variant because we have
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* to keep GIMP up long enough for the debugger to get its
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* trace.
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*/
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if (has_backtrace &&
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g_file_test (backtrace_file, G_FILE_TEST_IS_REGULAR) &&
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g_spawn_async (NULL, args, NULL,
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G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_STDOUT_TO_DEV_NULL,
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NULL, NULL, NULL, NULL))
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eek_handled = TRUE;
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}
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#endif /* !GIMP_CONSOLE_COMPILATION */
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#ifndef G_OS_WIN32
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if (! eek_handled)
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{
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switch (stack_trace_mode)
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{
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case GIMP_STACK_TRACE_NEVER:
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break;
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case GIMP_STACK_TRACE_QUERY:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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if (the_errors_gimp)
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gimp_gui_ungrab (the_errors_gimp);
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gimp_stack_trace_query ((const gchar *) full_prog_name);
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}
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break;
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case GIMP_STACK_TRACE_ALWAYS:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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gimp_stack_trace_print ((const gchar *) full_prog_name,
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stdout, NULL);
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}
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break;
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default:
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break;
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}
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}
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#endif /* ! G_OS_WIN32 */
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}
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#endif /* ! G_OS_WIN32 || HAVE_EXCHNDL */
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#if defined (G_OS_WIN32) && ! defined (GIMP_CONSOLE_COMPILATION)
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/* g_on_error_* don't do anything reasonable on Win32. */
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if (! eek_handled && ! the_errors_gimp->no_interface)
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MessageBox (NULL, g_strdup_printf ("%s: %s", reason, message),
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full_prog_name, MB_OK|MB_ICONERROR);
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#endif
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/* Let's try to back-up all unsaved images!
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* It is not 100%: when I tested with various bugs created on purpose,
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* I had cases where saving failed. I am not sure if this is because
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* of some memory management along the way to XCF saving or some other
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* messed up state of GIMP, but this is normal not to expect too much
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* during a crash.
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* Nevertheless in various test cases, I had successful backups XCF of
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* the work in progress. Yeah!
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*/
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if (backup_path)
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{
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/* increase the busy counter, so XCF saving calling
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* gimp_set_busy() and gimp_unset_busy() won't call the GUI
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* layer and do whatever windowing system calls to set cursors.
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*/
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the_errors_gimp->busy++;
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/* The index of 'XXX' in backup_path string. */
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num_idx = strlen (backup_path) - 7;
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iter = gimp_get_image_iter (the_errors_gimp);
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for (; iter && i < 1000; iter = iter->next)
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{
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GimpImage *image = iter->data;
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GimpItem *item;
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if (! gimp_image_is_dirty (image))
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continue;
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item = GIMP_ITEM (gimp_image_get_active_drawable (image));
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/* This is a trick because we want to avoid any memory
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* allocation when the process is abnormally terminated.
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* We just assume that you'll never have more than 1000 images
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* open (which is already far fetched).
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*/
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backup_path[num_idx + 2] = '0' + (i % 10);
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backup_path[num_idx + 1] = '0' + ((i/10) % 10);
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backup_path[num_idx] = '0' + ((i/100) % 10);
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/* Saving. */
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gimp_pdb_execute_procedure_by_name (the_errors_gimp->pdb,
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gimp_get_user_context (the_errors_gimp),
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NULL, NULL,
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"gimp-xcf-save",
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GIMP_TYPE_RUN_MODE, GIMP_RUN_NONINTERACTIVE,
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GIMP_TYPE_IMAGE, image,
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GIMP_TYPE_DRAWABLE, item,
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G_TYPE_STRING, backup_path,
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G_TYPE_STRING, backup_path,
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G_TYPE_NONE);
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i++;
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}
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}
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exit (EXIT_FAILURE);
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}
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