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thumb-standard.cc
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/*
* Copyright (C) 2006 John Ellis
* Copyright (C) 2008 - 2016 The Geeqie Team
*
* Author: John Ellis
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "thumb-standard.h"
#include <sys/stat.h>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <string>
#include <glib-object.h>
#include <config.h>
#include "cache.h"
#include "color-man.h"
#include "exif.h"
#include "filedata.h"
#include "image-load.h"
#include "md5-util.h"
#include "metadata.h"
#include "options.h"
#include "pixbuf-util.h"
#include "typedefs.h"
#include "ui-fileops.h"
struct ExifData;
/**
* @file
*
* This thumbnail caching implementation attempts to conform
* to the Thumbnail Managing Standard proposed on freedesktop.org
* The standard is documented here: \n
* https://www.freedesktop.org/wiki/Specifications/thumbnails/ \n
*
* This code attempts to conform to version 0.7.0 of the standard.
*
* Notes:
* > Validation of the thumb's embedded uri is a simple strcmp between our
* > version of the escaped uri and the thumb's escaped uri. But not all uri
* > escape functions escape the same set of chars, comparing the unescaped
* > versions may be more accurate. \n
* > Only Thumb::URI and Thumb::MTime are stored in a thumb at this time.
* Storing the Size, Width, Height should probably be implemented.
*/
enum {
THUMB_SIZE_NORMAL = 128,
THUMB_SIZE_LARGE = 256
};
#define THUMB_MARKER_URI "tEXt::Thumb::URI"
#define THUMB_MARKER_MTIME "tEXt::Thumb::MTime"
#define THUMB_MARKER_SIZE "tEXt::Thumb::Size"
#define THUMB_MARKER_WIDTH "tEXt::Thumb::Image::Width"
#define THUMB_MARKER_HEIGHT "tEXt::Thumb::Image::Height"
#define THUMB_MARKER_APP "tEXt::Software"
/*
*-----------------------------------------------------------------------------
* thumbnail loader
*-----------------------------------------------------------------------------
*/
static void thumb_loader_std_error_cb(ImageLoader *il, gpointer data);
static gint thumb_loader_std_setup(ThumbLoaderStd *tl, FileData *fd);
ThumbLoaderStd *thumb_loader_std_new(gint width, gint height)
{
ThumbLoaderStd *tl;
tl = g_new0(ThumbLoaderStd, 1);
tl->standard_loader = TRUE;
tl->requested_width = width;
tl->requested_height = height;
tl->cache_enable = options->thumbnails.enable_caching;
return tl;
}
void thumb_loader_std_set_callbacks(ThumbLoaderStd *tl,
ThumbLoaderStd::Func func_done,
ThumbLoaderStd::Func func_error,
ThumbLoaderStd::Func func_progress,
gpointer data)
{
if (!tl) return;
tl->func_done = func_done;
tl->func_error = func_error;
tl->func_progress = func_progress;
tl->data = data;
}
static void thumb_loader_std_reset(ThumbLoaderStd *tl)
{
image_loader_free(tl->il);
tl->il = nullptr;
file_data_unref(tl->fd);
tl->fd = nullptr;
g_free(tl->thumb_path);
tl->thumb_path = nullptr;
g_free(tl->thumb_uri);
tl->thumb_uri = nullptr;
tl->local_uri = nullptr;
tl->thumb_path_local = FALSE;
tl->cache_hit = FALSE;
tl->source_mtime = 0;
tl->source_size = 0;
tl->source_mode = 0;
tl->progress = 0.0;
}
static gchar *thumb_std_cache_path(const gchar *path, const gchar *uri, gboolean local,
const gchar *cache_subfolder)
{
if (!path || !uri || !cache_subfolder) return nullptr;
g_autofree gchar *md5_text = md5_get_string(reinterpret_cast<const guchar *>(uri), strlen(uri));
if (!md5_text) return nullptr;
g_autofree gchar *name = g_strconcat(md5_text, THUMB_NAME_EXTENSION, NULL);
if (local)
{
g_autofree gchar *base = remove_level_from_path(path);
return g_build_filename(base, THUMB_FOLDER_LOCAL, cache_subfolder, name, NULL);
}
return g_build_filename(get_thumbnails_standard_cache_dir(), cache_subfolder, name, NULL);
}
static gchar *thumb_loader_std_cache_path(ThumbLoaderStd *tl, gboolean local, GdkPixbuf *pixbuf, gboolean fail)
{
const gchar *folder;
gint w;
gint h;
if (!tl->fd || !tl->thumb_uri) return nullptr;
if (pixbuf)
{
w = gdk_pixbuf_get_width(pixbuf);
h = gdk_pixbuf_get_height(pixbuf);
}
else
{
w = tl->requested_width;
h = tl->requested_height;
}
if (fail)
{
folder = THUMB_FOLDER_FAIL;
}
else if (w > THUMB_SIZE_NORMAL || h > THUMB_SIZE_NORMAL)
{
folder = THUMB_FOLDER_LARGE;
}
else
{
folder = THUMB_FOLDER_NORMAL;
}
return thumb_std_cache_path(tl->fd->path,
(local) ? tl->local_uri : tl->thumb_uri,
local, folder);
}
static gboolean thumb_loader_std_fail_check(ThumbLoaderStd *tl)
{
g_autofree gchar *fail_path = thumb_loader_std_cache_path(tl, FALSE, nullptr, TRUE);
if (!isfile(fail_path)) return FALSE;
gboolean result = FALSE;
GdkPixbuf *pixbuf = nullptr;
if (!tl->cache_retry)
{
g_autofree gchar *pathl = path_from_utf8(fail_path);
pixbuf = gdk_pixbuf_new_from_file(pathl, nullptr);
}
if (pixbuf)
{
const gchar *mtime_str;
mtime_str = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_MTIME);
if (mtime_str && strtol(mtime_str, nullptr, 10) == tl->source_mtime)
{
result = TRUE;
DEBUG_1("thumb fail valid: %s", tl->fd->path);
DEBUG_1(" thumb: %s", fail_path);
}
g_object_unref(G_OBJECT(pixbuf));
}
if (!result) unlink_file(fail_path);
return result;
}
static gboolean thumb_loader_std_validate(ThumbLoaderStd *tl, GdkPixbuf *pixbuf)
{
const gchar *valid_uri;
const gchar *uri;
const gchar *mtime_str;
time_t mtime;
gint w;
gint h;
if (!pixbuf) return FALSE;
w = gdk_pixbuf_get_width(pixbuf);
h = gdk_pixbuf_get_height(pixbuf);
if (w != THUMB_SIZE_NORMAL && w != THUMB_SIZE_LARGE &&
h != THUMB_SIZE_NORMAL && h != THUMB_SIZE_LARGE) return FALSE;
valid_uri = (tl->thumb_path_local) ? tl->local_uri : tl->thumb_uri;
uri = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_URI);
mtime_str = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_MTIME);
if (!mtime_str || !uri || !valid_uri) return FALSE;
if (strcmp(uri, valid_uri) != 0) return FALSE;
mtime = strtol(mtime_str, nullptr, 10);
if (tl->source_mtime != mtime) return FALSE;
return TRUE;
}
static void thumb_loader_std_save(ThumbLoaderStd *tl, GdkPixbuf *pixbuf)
{
gboolean fail;
if (!tl->cache_enable || tl->cache_hit) return;
if (tl->thumb_path) return;
if (!pixbuf)
{
/* local failures are not stored */
if (tl->cache_local) return;
pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 1, 1);
fail = TRUE;
}
else
{
g_object_ref(G_OBJECT(pixbuf));
fail = FALSE;
}
tl->thumb_path = thumb_loader_std_cache_path(tl, tl->cache_local, pixbuf, fail);
if (!tl->thumb_path)
{
g_object_unref(G_OBJECT(pixbuf));
return;
}
tl->thumb_path_local = tl->cache_local;
/* create thumbnail dir if needed */
g_autofree gchar *base_path = remove_level_from_path(tl->thumb_path);
if (tl->cache_local)
{
if (!isdir(base_path))
{
g_autofree gchar *source_base = remove_level_from_path(tl->fd->path);
struct stat st;
if (stat_utf8(source_base, &st))
{
recursive_mkdir_if_not_exists(base_path, st.st_mode);
}
}
}
else
{
recursive_mkdir_if_not_exists(base_path, S_IRWXU);
}
DEBUG_1("thumb saving: %s", tl->fd->path);
DEBUG_1(" saved: %s", tl->thumb_path);
/* save thumb, using a temp file then renaming into place */
g_autofree gchar *tmp_path = unique_filename(tl->thumb_path, ".tmp", "_", 2);
if (tmp_path)
{
const gchar *mark_uri;
gboolean success;
mark_uri = (tl->cache_local) ? tl->local_uri :tl->thumb_uri;
g_autofree gchar *mark_app = g_strdup_printf("%s %s", GQ_APPNAME, VERSION);
const std::string mark_mtime = std::to_string(static_cast<unsigned long long>(tl->source_mtime));
g_autofree gchar *pathl = path_from_utf8(tmp_path);
success = gdk_pixbuf_save(pixbuf, pathl, "png", nullptr,
THUMB_MARKER_URI, mark_uri,
THUMB_MARKER_MTIME, mark_mtime.c_str(),
THUMB_MARKER_APP, mark_app,
NULL);
if (success)
{
chmod(pathl, (tl->cache_local) ? tl->source_mode : S_IRUSR | S_IWUSR);
success = rename_file(tmp_path, tl->thumb_path);
}
if (!success)
{
DEBUG_1("thumb save failed: %s", tl->fd->path);
DEBUG_1(" thumb: %s", tl->thumb_path);
}
}
g_object_unref(G_OBJECT(pixbuf));
}
static void thumb_loader_std_set_fallback(ThumbLoaderStd *tl)
{
if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
tl->fd->thumb_pixbuf = pixbuf_fallback(tl->fd, tl->requested_width, tl->requested_height);
}
void thumb_loader_std_calibrate_pixbuf(FileData *fd, GdkPixbuf *pixbuf)
{
if (!options->thumbnails.use_color_management) return;
ColorManProfileType color_profile_from_image = COLOR_PROFILE_NONE;
guint profile_len;
g_autofree guchar *profile = exif_get_color_profile(fd, profile_len, color_profile_from_image);
if (color_profile_from_image == COLOR_PROFILE_NONE) return;
// transform image, we always use sRGB as target for thumbnails
constexpr ColorManProfileType screen_type = COLOR_PROFILE_SRGB;
const gint sw = gdk_pixbuf_get_width(pixbuf);
const gint sh = gdk_pixbuf_get_height(pixbuf);
g_autofree ColorMan *cm = nullptr;
if (profile)
{
cm = color_man_new_embedded(nullptr, pixbuf,
profile, profile_len,
screen_type, nullptr, nullptr, 0);
}
else
{
constexpr ColorManProfileType input_type = COLOR_PROFILE_MEM;
const gchar *input_file = nullptr;
cm = color_man_new(nullptr, pixbuf,
input_type, input_file,
screen_type, nullptr, nullptr, 0);
}
if(cm)
{
color_man_correct_region(cm, cm->pixbuf, 0, 0, sw, sh);
}
}
static GdkPixbuf *thumb_loader_std_finish(ThumbLoaderStd *tl, GdkPixbuf *pixbuf, gboolean shrunk)
{
GdkPixbuf *pixbuf_thumb = nullptr;
GdkPixbuf *result;
GdkPixbuf *rotated = nullptr;
gint sw;
gint sh;
if (!tl->cache_hit && options->image.exif_rotate_enable)
{
if (!tl->fd->exif_orientation)
{
if (g_strcmp0(tl->fd->format_name, "heif") != 0)
{
tl->fd->exif_orientation = metadata_read_int(tl->fd, ORIENTATION_KEY, EXIF_ORIENTATION_TOP_LEFT);
}
else
{
tl->fd->exif_orientation = EXIF_ORIENTATION_TOP_LEFT;
}
}
if (tl->fd->exif_orientation != EXIF_ORIENTATION_TOP_LEFT)
{
rotated = pixbuf_apply_orientation(pixbuf, tl->fd->exif_orientation);
pixbuf = rotated;
}
}
sw = gdk_pixbuf_get_width(pixbuf);
sh = gdk_pixbuf_get_height(pixbuf);
if (tl->cache_enable)
{
if (!tl->cache_hit)
{
gint cache_w;
gint cache_h;
if (tl->requested_width > THUMB_SIZE_NORMAL || tl->requested_height > THUMB_SIZE_NORMAL)
{
cache_w = cache_h = THUMB_SIZE_LARGE;
}
else
{
cache_w = cache_h = THUMB_SIZE_NORMAL;
}
if (sw > cache_w || sh > cache_h || shrunk)
{
gint thumb_w;
gint thumb_h;
struct stat st;
if (pixbuf_scale_aspect(cache_w, cache_h, sw, sh,
thumb_w, thumb_h))
{
pixbuf_thumb = gdk_pixbuf_scale_simple(pixbuf, thumb_w, thumb_h,
static_cast<GdkInterpType>(options->thumbnails.quality));
}
else
{
pixbuf_thumb = pixbuf;
g_object_ref(G_OBJECT(pixbuf_thumb));
}
/* do not save the thumbnail if the source file has changed meanwhile -
the thumbnail is most probably broken */
if (stat_utf8(tl->fd->path, &st) &&
tl->source_mtime == st.st_mtime &&
tl->source_size == st.st_size)
{
thumb_loader_std_save(tl, pixbuf_thumb);
}
}
}
else if (tl->cache_local && !tl->thumb_path_local)
{
/* A local cache save was requested, but a valid thumb is in $HOME,
* so specifically save as a local thumbnail.
*/
g_free(tl->thumb_path);
tl->thumb_path = nullptr;
tl->cache_hit = FALSE;
DEBUG_1("thumb copied: %s", tl->fd->path);
thumb_loader_std_save(tl, pixbuf);
}
}
if (sw <= tl->requested_width && sh <= tl->requested_height)
{
result = pixbuf;
g_object_ref(result);
}
else
{
gint thumb_w;
gint thumb_h;
if (pixbuf_thumb)
{
pixbuf = pixbuf_thumb;
sw = gdk_pixbuf_get_width(pixbuf);
sh = gdk_pixbuf_get_height(pixbuf);
}
if (pixbuf_scale_aspect(tl->requested_width, tl->requested_height, sw, sh,
thumb_w, thumb_h))
{
result = gdk_pixbuf_scale_simple(pixbuf, thumb_w, thumb_h,
static_cast<GdkInterpType>(options->thumbnails.quality));
}
else
{
result = pixbuf;
g_object_ref(result);
}
}
// apply color correction, if required
thumb_loader_std_calibrate_pixbuf(tl->fd, result);
if (pixbuf_thumb) g_object_unref(pixbuf_thumb);
if (rotated) g_object_unref(rotated);
return result;
}
static gboolean thumb_loader_std_next_source(ThumbLoaderStd *tl, gboolean remove_broken)
{
image_loader_free(tl->il);
tl->il = nullptr;
if (tl->thumb_path)
{
if (!tl->thumb_path_local && remove_broken)
{
DEBUG_1("thumb broken, unlinking: %s", tl->thumb_path);
unlink_file(tl->thumb_path);
}
g_free(tl->thumb_path);
tl->thumb_path = nullptr;
if (!tl->thumb_path_local)
{
tl->thumb_path = thumb_loader_std_cache_path(tl, TRUE, nullptr, FALSE);
if (isfile(tl->thumb_path))
{
FileData *fd = file_data_new_no_grouping(tl->thumb_path);
if (thumb_loader_std_setup(tl, fd))
{
file_data_unref(fd);
tl->thumb_path_local = TRUE;
return TRUE;
}
file_data_unref(fd);
}
g_free(tl->thumb_path);
tl->thumb_path = nullptr;
}
if (thumb_loader_std_setup(tl, tl->fd)) return TRUE;
}
thumb_loader_std_save(tl, nullptr);
return FALSE;
}
static void thumb_loader_std_done_cb(ImageLoader *il, gpointer data)
{
auto tl = static_cast<ThumbLoaderStd *>(data);
GdkPixbuf *pixbuf;
DEBUG_1("thumb image done: %s", tl->fd ? tl->fd->path : "???");
DEBUG_1(" from: %s", image_loader_get_fd(tl->il)->path);
pixbuf = image_loader_get_pixbuf(tl->il);
if (!pixbuf)
{
DEBUG_1("...but no pixbuf");
thumb_loader_std_error_cb(il, data);
return;
}
if (tl->thumb_path && !thumb_loader_std_validate(tl, pixbuf))
{
if (thumb_loader_std_next_source(tl, TRUE)) return;
if (tl->func_error) tl->func_error(tl, tl->data);
return;
}
tl->cache_hit = (tl->thumb_path != nullptr);
if (tl->fd)
{
if (tl->fd->thumb_pixbuf) g_object_unref(tl->fd->thumb_pixbuf);
tl->fd->thumb_pixbuf = thumb_loader_std_finish(tl, pixbuf, image_loader_get_shrunk(il));
}
if (tl->func_done) tl->func_done(tl, tl->data);
}
static void thumb_loader_std_error_cb(ImageLoader *il, gpointer data)
{
auto tl = static_cast<ThumbLoaderStd *>(data);
/* if at least some of the image is available, go to done */
if (image_loader_get_pixbuf(tl->il) != nullptr)
{
thumb_loader_std_done_cb(il, data);
return;
}
DEBUG_1("thumb image error: %s", tl->fd->path);
DEBUG_1(" from: %s", image_loader_get_fd(tl->il)->path);
if (thumb_loader_std_next_source(tl, TRUE)) return;
thumb_loader_std_set_fallback(tl);
if (tl->func_error) tl->func_error(tl, tl->data);
}
static void thumb_loader_std_progress_cb(ImageLoader *, gdouble percent, gpointer data)
{
auto tl = static_cast<ThumbLoaderStd *>(data);
tl->progress = percent;
if (tl->func_progress) tl->func_progress(tl, tl->data);
}
static gboolean thumb_loader_std_setup(ThumbLoaderStd *tl, FileData *fd)
{
tl->il = image_loader_new(fd);
image_loader_set_priority(tl->il, G_PRIORITY_LOW);
/* this will speed up jpegs by up to 3x in some cases */
if (tl->requested_width <= THUMB_SIZE_NORMAL &&
tl->requested_height <= THUMB_SIZE_NORMAL)
{
image_loader_set_requested_size(tl->il, THUMB_SIZE_NORMAL, THUMB_SIZE_NORMAL);
}
else
{
image_loader_set_requested_size(tl->il, THUMB_SIZE_LARGE, THUMB_SIZE_LARGE);
}
g_signal_connect(G_OBJECT(tl->il), "error", (GCallback)thumb_loader_std_error_cb, tl);
if (tl->func_progress)
{
g_signal_connect(G_OBJECT(tl->il), "percent", (GCallback)thumb_loader_std_progress_cb, tl);
}
g_signal_connect(G_OBJECT(tl->il), "done", (GCallback)thumb_loader_std_done_cb, tl);
if (image_loader_start(tl->il))
{
return TRUE;
}
image_loader_free(tl->il);
tl->il = nullptr;
return FALSE;
}
/*
* Note: Currently local_cache only specifies where to save a _new_ thumb, if
* a valid existing thumb is found anywhere the local thumb will not be created.
*/
void thumb_loader_std_set_cache(ThumbLoaderStd *tl, gboolean enable_cache, gboolean local, gboolean retry_failed)
{
if (!tl) return;
tl->cache_enable = enable_cache;
tl->cache_local = local;
tl->cache_retry = retry_failed;
}
gboolean thumb_loader_std_start(ThumbLoaderStd *tl, FileData *fd)
{
struct stat st;
if (!tl || !fd) return FALSE;
thumb_loader_std_reset(tl);
tl->fd = file_data_ref(fd);
if (!stat_utf8(fd->path, &st) || (tl->fd->format_class != FORMAT_CLASS_IMAGE && tl->fd->format_class != FORMAT_CLASS_RAWIMAGE && tl->fd->format_class != FORMAT_CLASS_VIDEO && tl->fd->format_class != FORMAT_CLASS_COLLECTION && tl->fd->format_class != FORMAT_CLASS_DOCUMENT && !options->file_filter.disable))
{
thumb_loader_std_set_fallback(tl);
return FALSE;
}
tl->source_mtime = st.st_mtime;
tl->source_size = st.st_size;
tl->source_mode = st.st_mode;
static const gchar *thumb_cache = get_thumbnails_standard_cache_dir();
if (strncmp(tl->fd->path, thumb_cache, strlen(thumb_cache)) != 0)
{
g_autofree gchar *pathl = path_from_utf8(fd->path);
tl->thumb_uri = g_filename_to_uri(pathl, nullptr, nullptr);
tl->local_uri = filename_from_path(tl->thumb_uri);
}
if (tl->cache_enable)
{
gint found;
tl->thumb_path = thumb_loader_std_cache_path(tl, FALSE, nullptr, FALSE);
tl->thumb_path_local = FALSE;
found = isfile(tl->thumb_path);
if (found)
{
FileData *fd = file_data_new_no_grouping(tl->thumb_path);
if (thumb_loader_std_setup(tl, fd))
{
file_data_unref(fd);
return TRUE;
}
file_data_unref(fd);
}
if (thumb_loader_std_fail_check(tl) ||
!thumb_loader_std_next_source(tl, found))
{
thumb_loader_std_set_fallback(tl);
return FALSE;
}
return TRUE;
}
if (!thumb_loader_std_setup(tl, tl->fd))
{
thumb_loader_std_save(tl, nullptr);
thumb_loader_std_set_fallback(tl);
return FALSE;
}
return TRUE;
}
void thumb_loader_std_free(ThumbLoaderStd *tl)
{
if (!tl) return;
thumb_loader_std_reset(tl);
g_free(tl);
}
GdkPixbuf *thumb_loader_std_get_pixbuf(ThumbLoaderStd *tl)
{
GdkPixbuf *pixbuf;
if (tl && tl->fd && tl->fd->thumb_pixbuf)
{
pixbuf = tl->fd->thumb_pixbuf;
g_object_ref(pixbuf);
}
else
{
pixbuf = pixbuf_fallback(nullptr, tl->requested_width, tl->requested_height);
}
return pixbuf;
}
struct ThumbValidate
{
ThumbLoaderStd *tl;
gchar *path;
gint days;
void (*func_valid)(const gchar *path, gboolean valid, gpointer data);
gpointer data;
guint idle_id; /* event source id */
};
static void thumb_loader_std_thumb_file_validate_free(ThumbValidate *tv)
{
thumb_loader_std_free(tv->tl);
g_free(tv->path);
g_free(tv);
}
void thumb_loader_std_thumb_file_validate_cancel(ThumbLoaderStd *tl)
{
ThumbValidate *tv;
if (!tl) return;
tv = static_cast<ThumbValidate *>(tl->data);
if (tv->idle_id)
{
g_source_remove(tv->idle_id);
tv->idle_id = 0;
}
thumb_loader_std_thumb_file_validate_free(tv);
}
static void thumb_loader_std_thumb_file_validate_finish(ThumbValidate *tv, gboolean valid)
{
if (tv->func_valid) tv->func_valid(tv->path, valid, tv->data);
thumb_loader_std_thumb_file_validate_free(tv);
}
static void thumb_loader_std_thumb_file_validate_done_cb(ThumbLoaderStd *, gpointer data)
{
auto tv = static_cast<ThumbValidate *>(data);
GdkPixbuf *pixbuf;
gboolean valid = FALSE;
/* get the original thumbnail pixbuf (unrotated, with original options)
this is called from image_loader done callback, so tv->tl->il must exist*/
pixbuf = image_loader_get_pixbuf(tv->tl->il);
if (pixbuf)
{
const gchar *uri;
const gchar *mtime_str;
uri = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_URI);
mtime_str = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_MTIME);
if (uri && mtime_str)
{
if (strncmp(uri, "file:", strlen("file:")) == 0)
{
struct stat st;
g_autofree gchar *target = g_filename_from_uri(uri, nullptr, nullptr);
if (stat(target, &st) == 0 &&
st.st_mtime == strtol(mtime_str, nullptr, 10))
{
valid = TRUE;
}
}
else
{
struct stat st;
DEBUG_1("thumb uri foreign, doing day check: %s", uri);
if (stat_utf8(tv->path, &st))
{
time_t now;
now = time(nullptr);
if (st.st_atime >= now - static_cast<time_t>(tv->days) * 24 * 60 * 60)
{
valid = TRUE;
}
}
}
}
else
{
DEBUG_1("invalid image found in std cache: %s", tv->path);
}
}
thumb_loader_std_thumb_file_validate_finish(tv, valid);
}
static void thumb_loader_std_thumb_file_validate_error_cb(ThumbLoaderStd *, gpointer data)
{
auto tv = static_cast<ThumbValidate *>(data);
thumb_loader_std_thumb_file_validate_finish(tv, FALSE);
}
static gboolean thumb_loader_std_thumb_file_validate_idle_cb(gpointer data)
{
auto tv = static_cast<ThumbValidate *>(data);
tv->idle_id = 0;
thumb_loader_std_thumb_file_validate_finish(tv, FALSE);
return G_SOURCE_REMOVE;
}
/**
* @brief Validates a non local thumbnail file,
* calling func_valid with the information when app is idle
* for thumbnail's without a file: uri, validates against allowed_age in days
*/
ThumbLoaderStd *thumb_loader_std_thumb_file_validate(const gchar *thumb_path, gint allowed_days,
void (*func_valid)(const gchar *path, gboolean valid, gpointer data),
gpointer data)
{
ThumbValidate *tv;
tv = g_new0(ThumbValidate, 1);
tv->tl = thumb_loader_std_new(THUMB_SIZE_LARGE, THUMB_SIZE_LARGE);
thumb_loader_std_set_callbacks(tv->tl,
thumb_loader_std_thumb_file_validate_done_cb,
thumb_loader_std_thumb_file_validate_error_cb,
nullptr,
tv);
thumb_loader_std_reset(tv->tl);
tv->path = g_strdup(thumb_path);
tv->days = allowed_days;
tv->func_valid = func_valid;
tv->data = data;
FileData *fd = file_data_new_no_grouping(thumb_path);
if (!thumb_loader_std_setup(tv->tl, fd))
{
tv->idle_id = g_idle_add(thumb_loader_std_thumb_file_validate_idle_cb, tv);
}
else
{
tv->idle_id = 0;
}
file_data_unref(fd);
return tv->tl;
}
static void thumb_std_maint_remove_one(const gchar *source, const gchar *uri, gboolean local,
const gchar *subfolder)
{
g_autofree gchar *thumb_path = thumb_std_cache_path(source,
local ? filename_from_path(uri) : uri,
local,
subfolder);
if (isfile(thumb_path))
{
DEBUG_1("thumb removing: %s", thumb_path);
unlink_file(thumb_path);
}
}
/* this also removes local thumbnails (the source is gone so it makes sense) */
void thumb_std_maint_removed(const gchar *source)
{
g_autofree gchar *sourcel = path_from_utf8(source);
g_autofree gchar *uri = g_filename_to_uri(sourcel, nullptr, nullptr);
/* all this to remove a thumbnail? */
thumb_std_maint_remove_one(source, uri, FALSE, THUMB_FOLDER_NORMAL);
thumb_std_maint_remove_one(source, uri, FALSE, THUMB_FOLDER_LARGE);
thumb_std_maint_remove_one(source, uri, FALSE, THUMB_FOLDER_FAIL);
thumb_std_maint_remove_one(source, uri, TRUE, THUMB_FOLDER_NORMAL);
thumb_std_maint_remove_one(source, uri, TRUE, THUMB_FOLDER_LARGE);
}
struct TMaintMove
{
gchar *source;
gchar *dest;
ThumbLoaderStd *tl;
gchar *source_uri;
gchar *thumb_path;
gint pass;
};
static GList *thumb_std_maint_move_list = nullptr;
static GList *thumb_std_maint_move_tail = nullptr;
static void thumb_std_maint_move_step(TMaintMove *tm);
static gboolean thumb_std_maint_move_idle(gpointer data);
static void thumb_std_maint_move_validate_cb(const gchar *, gboolean, gpointer data)
{
auto tm = static_cast<TMaintMove *>(data);
GdkPixbuf *pixbuf;
/* get the original thumbnail pixbuf (unrotated, with original options)
this is called from image_loader done callback, so tm->tl->il must exist*/
pixbuf = image_loader_get_pixbuf(tm->tl->il);
if (pixbuf)
{
const gchar *uri;
const gchar *mtime_str;
uri = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_URI);
mtime_str = gdk_pixbuf_get_option(pixbuf, THUMB_MARKER_MTIME);
if (uri && mtime_str && strcmp(uri, tm->source_uri) == 0)
{
/* The validation utility abuses ThumbLoader, and we
* abuse the utility just to load the thumbnail,