mpv/player/configfiles.c

441 lines
14 KiB
C

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stddef.h>
#include <stdbool.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <utime.h>
#include <libavutil/md5.h>
#include "mpv_talloc.h"
#include "osdep/io.h"
#include "common/global.h"
#include "common/encode.h"
#include "common/msg.h"
#include "misc/ctype.h"
#include "options/path.h"
#include "options/m_config.h"
#include "options/m_config_frontend.h"
#include "options/parse_configfile.h"
#include "common/playlist.h"
#include "options/options.h"
#include "options/m_property.h"
#include "stream/stream.h"
#include "core.h"
#include "command.h"
static void load_all_cfgfiles(struct MPContext *mpctx, char *section,
char *filename)
{
char **cf = mp_find_all_config_files(NULL, mpctx->global, filename);
for (int i = 0; cf && cf[i]; i++)
m_config_parse_config_file(mpctx->mconfig, cf[i], section, 0);
talloc_free(cf);
}
// This name is used in builtin.conf to force encoding defaults (like ao/vo).
#define SECT_ENCODE "encoding"
void mp_parse_cfgfiles(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
mp_mk_config_dir(mpctx->global, "");
char *p1 = mp_get_user_path(NULL, mpctx->global, "~~home/");
char *p2 = mp_get_user_path(NULL, mpctx->global, "~~old_home/");
if (strcmp(p1, p2) != 0 && mp_path_exists(p2)) {
MP_WARN(mpctx, "Warning, two config dirs found:\n %s (main)\n"
" %s (bogus)\nYou should merge or delete the second one.\n",
p1, p2);
}
talloc_free(p1);
talloc_free(p2);
char *section = NULL;
bool encoding = opts->encode_opts &&
opts->encode_opts->file && opts->encode_opts->file[0];
// In encoding mode, we don't want to apply normal config options.
// So we "divert" normal options into a separate section, and the diverted
// section is never used - unless maybe it's explicitly referenced from an
// encoding profile.
if (encoding)
section = "playback-default";
load_all_cfgfiles(mpctx, NULL, "encoding-profiles.conf");
load_all_cfgfiles(mpctx, section, "mpv.conf|config");
if (encoding)
m_config_set_profile(mpctx->mconfig, SECT_ENCODE, 0);
}
static int try_load_config(struct MPContext *mpctx, const char *file, int flags,
int msgl)
{
if (!mp_path_exists(file))
return 0;
MP_MSG(mpctx, msgl, "Loading config '%s'\n", file);
m_config_parse_config_file(mpctx->mconfig, file, NULL, flags);
return 1;
}
// Set options file-local, and don't set them if the user set them via the
// command line.
#define FILE_LOCAL_FLAGS (M_SETOPT_BACKUP | M_SETOPT_PRESERVE_CMDLINE)
static void mp_load_per_file_config(struct MPContext *mpctx)
{
struct MPOpts *opts = mpctx->opts;
char *confpath;
char cfg[512];
const char *file = mpctx->filename;
if (opts->use_filedir_conf) {
if (snprintf(cfg, sizeof(cfg), "%s.conf", file) >= sizeof(cfg)) {
MP_VERBOSE(mpctx, "Filename is too long, can not load file or "
"directory specific config files\n");
return;
}
char *name = mp_basename(cfg);
bstr dir = mp_dirname(cfg);
char *dircfg = mp_path_join_bstr(NULL, dir, bstr0("mpv.conf"));
try_load_config(mpctx, dircfg, FILE_LOCAL_FLAGS, MSGL_INFO);
talloc_free(dircfg);
if (try_load_config(mpctx, cfg, FILE_LOCAL_FLAGS, MSGL_INFO))
return;
if ((confpath = mp_find_config_file(NULL, mpctx->global, name))) {
try_load_config(mpctx, confpath, FILE_LOCAL_FLAGS, MSGL_INFO);
talloc_free(confpath);
}
}
}
static void mp_auto_load_profile(struct MPContext *mpctx, char *category,
bstr item)
{
if (!item.len)
return;
char t[512];
snprintf(t, sizeof(t), "%s.%.*s", category, BSTR_P(item));
m_profile_t *p = m_config_get_profile0(mpctx->mconfig, t);
if (p) {
MP_INFO(mpctx, "Auto-loading profile '%s'\n", t);
m_config_set_profile(mpctx->mconfig, t, FILE_LOCAL_FLAGS);
}
}
void mp_load_auto_profiles(struct MPContext *mpctx)
{
mp_auto_load_profile(mpctx, "protocol",
mp_split_proto(bstr0(mpctx->filename), NULL));
mp_auto_load_profile(mpctx, "extension",
bstr0(mp_splitext(mpctx->filename, NULL)));
mp_load_per_file_config(mpctx);
}
#define MP_WATCH_LATER_CONF "watch_later"
static bool check_mtime(const char *f1, const char *f2)
{
struct stat st1, st2;
if (stat(f1, &st1) != 0 || stat(f2, &st2) != 0)
return false;
return st1.st_mtime == st2.st_mtime;
}
static bool copy_mtime(const char *f1, const char *f2)
{
struct stat st1, st2;
if (stat(f1, &st1) != 0 || stat(f2, &st2) != 0)
return false;
struct utimbuf ut = {
.actime = st2.st_atime, // we want to pass this through intact
.modtime = st1.st_mtime,
};
if (utime(f2, &ut) != 0)
return false;
return true;
}
static char *mp_get_playback_resume_config_filename(struct MPContext *mpctx,
const char *fname)
{
struct MPOpts *opts = mpctx->opts;
char *res = NULL;
void *tmp = talloc_new(NULL);
const char *realpath = fname;
bstr bfname = bstr0(fname);
if (!mp_is_url(bfname)) {
if (opts->ignore_path_in_watch_later_config) {
realpath = mp_basename(fname);
} else {
char *cwd = mp_getcwd(tmp);
if (!cwd)
goto exit;
realpath = mp_path_join(tmp, cwd, fname);
}
}
uint8_t md5[16];
av_md5_sum(md5, realpath, strlen(realpath));
char *conf = talloc_strdup(tmp, "");
for (int i = 0; i < 16; i++)
conf = talloc_asprintf_append(conf, "%02X", md5[i]);
if (!mpctx->cached_watch_later_configdir) {
char *wl_dir = mpctx->opts->watch_later_directory;
if (wl_dir && wl_dir[0]) {
mpctx->cached_watch_later_configdir =
mp_get_user_path(mpctx, mpctx->global, wl_dir);
}
}
if (!mpctx->cached_watch_later_configdir) {
mpctx->cached_watch_later_configdir =
mp_find_user_config_file(mpctx, mpctx->global, MP_WATCH_LATER_CONF);
}
if (mpctx->cached_watch_later_configdir)
res = mp_path_join(NULL, mpctx->cached_watch_later_configdir, conf);
exit:
talloc_free(tmp);
return res;
}
// Should follow what parser-cfg.c does/needs
static bool needs_config_quoting(const char *s)
{
if (s[0] == '%')
return true;
for (int i = 0; s[i]; i++) {
unsigned char c = s[i];
if (!mp_isprint(c) || mp_isspace(c) || c == '#' || c == '\'' || c == '"')
return true;
}
return false;
}
static void write_filename(struct MPContext *mpctx, FILE *file, char *filename)
{
if (mpctx->opts->write_filename_in_watch_later_config) {
char write_name[1024] = {0};
for (int n = 0; filename[n] && n < sizeof(write_name) - 1; n++)
write_name[n] = (unsigned char)filename[n] < 32 ? '_' : filename[n];
fprintf(file, "# %s\n", write_name);
}
}
static void write_redirect(struct MPContext *mpctx, char *path)
{
char *conffile = mp_get_playback_resume_config_filename(mpctx, path);
if (conffile) {
FILE *file = fopen(conffile, "wb");
if (file) {
fprintf(file, "# redirect entry\n");
write_filename(mpctx, file, path);
fclose(file);
}
if (mpctx->opts->position_check_mtime &&
!mp_is_url(bstr0(path)) && !copy_mtime(path, conffile))
MP_WARN(mpctx, "Can't copy mtime from %s to %s\n", path, conffile);
talloc_free(conffile);
}
}
void mp_write_watch_later_conf(struct MPContext *mpctx)
{
struct playlist_entry *cur = mpctx->playing;
char *conffile = NULL;
if (!cur)
goto exit;
struct demuxer *demux = mpctx->demuxer;
conffile = mp_get_playback_resume_config_filename(mpctx, cur->filename);
if (!conffile)
goto exit;
mp_mk_config_dir(mpctx->global, mpctx->cached_watch_later_configdir);
MP_INFO(mpctx, "Saving state.\n");
FILE *file = fopen(conffile, "wb");
if (!file)
goto exit;
write_filename(mpctx, file, cur->filename);
bool write_start = true;
double pos = get_current_time(mpctx);
if ((demux && (!demux->seekable || demux->partially_seekable)) ||
pos == MP_NOPTS_VALUE)
{
write_start = false;
MP_INFO(mpctx, "Not seekable, or time unknown - not saving position.\n");
}
char **watch_later_options = mpctx->opts->watch_later_options;
for (int i = 0; watch_later_options && watch_later_options[i]; i++) {
char *pname = watch_later_options[i];
// Always save start if we have it in the array.
if (write_start && strcmp(pname, "start") == 0) {
fprintf(file, "%s=%f\n", pname, pos);
continue;
}
// Only store it if it's different from the initial value.
if (m_config_watch_later_backup_opt_changed(mpctx->mconfig, pname)) {
char *val = NULL;
mp_property_do(pname, M_PROPERTY_GET_STRING, &val, mpctx);
if (needs_config_quoting(val)) {
// e.g. '%6%STRING'
fprintf(file, "%s=%%%d%%%s\n", pname, (int)strlen(val), val);
} else {
fprintf(file, "%s=%s\n", pname, val);
}
talloc_free(val);
}
}
fclose(file);
if (mpctx->opts->position_check_mtime &&
!mp_is_url(bstr0(cur->filename)) &&
!copy_mtime(cur->filename, conffile))
{
MP_WARN(mpctx, "Can't copy mtime from %s to %s\n", cur->filename,
conffile);
}
// This allows us to recursively resume directories etc., whose entries are
// expanded the first time it's "played". For example, if "/a/b/c.mkv" is
// the current entry, then we want to resume this file if the user does
// "mpv /a". This would expand to the directory entries in "/a", and if
// "/a/a.mkv" is not the first entry, this would be played.
// Here, we write resume entries for "/a" and "/a/b".
// (Unfortunately, this will leave stray resume files on resume, because
// obviously it resumes only from one of those paths.)
for (int n = 0; n < cur->num_redirects; n++)
write_redirect(mpctx, cur->redirects[n]);
// And at last, for local directories, we write an entry for each path
// prefix, so the user can resume from an arbitrary directory. This starts
// with the first redirect (all other redirects are further prefixes).
if (cur->num_redirects) {
char *path = cur->redirects[0];
char tmp[4096];
if (!mp_is_url(bstr0(path)) && strlen(path) < sizeof(tmp)) {
snprintf(tmp, sizeof(tmp), "%s", path);
for (;;) {
bstr dir = mp_dirname(tmp);
if (dir.len == strlen(tmp) || !dir.len || bstr_equals0(dir, "."))
break;
tmp[dir.len] = '\0';
if (strlen(tmp) >= 2) // keep "/"
mp_path_strip_trailing_separator(tmp);
write_redirect(mpctx, tmp);
}
}
}
exit:
talloc_free(conffile);
}
void mp_delete_watch_later_conf(struct MPContext *mpctx, const char *file)
{
if (!file) {
struct playlist_entry *cur = mpctx->playing;
if (!cur)
return;
file = cur->filename;
if (!file)
return;
}
char *fname = mp_get_playback_resume_config_filename(mpctx, file);
if (fname)
unlink(fname);
talloc_free(fname);
}
void mp_load_playback_resume(struct MPContext *mpctx, const char *file)
{
if (!mpctx->opts->position_resume)
return;
char *fname = mp_get_playback_resume_config_filename(mpctx, file);
if (fname && mp_path_exists(fname)) {
if (mpctx->opts->position_check_mtime &&
!mp_is_url(bstr0(file)) && !check_mtime(file, fname))
{
talloc_free(fname);
return;
}
// Never apply the saved start position to following files
m_config_backup_opt(mpctx->mconfig, "start");
MP_INFO(mpctx, "Resuming playback. This behavior can "
"be disabled with --no-resume-playback.\n");
try_load_config(mpctx, fname, M_SETOPT_PRESERVE_CMDLINE, MSGL_V);
unlink(fname);
}
talloc_free(fname);
}
// Returns the first file that has a resume config.
// Compared to hashing the playlist file or contents and managing separate
// resume file for them, this is simpler, and also has the nice property
// that appending to a playlist doesn't interfere with resuming (especially
// if the playlist comes from the command line).
struct playlist_entry *mp_check_playlist_resume(struct MPContext *mpctx,
struct playlist *playlist)
{
if (!mpctx->opts->position_resume)
return NULL;
for (int n = 0; n < playlist->num_entries; n++) {
struct playlist_entry *e = playlist->entries[n];
char *conf = mp_get_playback_resume_config_filename(mpctx, e->filename);
bool exists = conf && mp_path_exists(conf);
talloc_free(conf);
if (exists)
return e;
}
return NULL;
}