static ngx_int_t
ngx_http_dav_delete_path(ngx_http_request_t *r, ngx_str_t *path, ngx_uint_t dir)
{
char *failed;
ngx_tree_ctx_t tree;
if (dir) {
tree.init_handler = NULL;
tree.file_handler = ngx_http_dav_delete_file;
tree.pre_tree_handler = ngx_http_dav_noop;
tree.post_tree_handler = ngx_http_dav_delete_dir;
tree.spec_handler = ngx_http_dav_delete_file;
tree.data = NULL;
tree.alloc = 0;
tree.log = r->connection->log;
/* TODO: 207 */
if (ngx_walk_tree(&tree, path) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
}
if (ngx_delete_dir(path->data) != NGX_FILE_ERROR) {
return NGX_OK;
}
failed = ngx_delete_dir_n;
} else {
if (ngx_delete_file(path->data) != NGX_FILE_ERROR) {
return NGX_OK;
}
failed = ngx_delete_file_n;
}
return ngx_http_dav_error(r->connection->log, ngx_errno,
NGX_HTTP_NOT_FOUND, failed, path->data);
}
static ngx_int_t
ngx_rtmp_dash_cleanup_dir(ngx_str_t *ppath, ngx_msec_t playlen)
{
time_t mtime, max_age;
u_char *p;
u_char path[NGX_MAX_PATH + 1], mpd_path[NGX_MAX_PATH + 1];
ngx_dir_t dir;
ngx_err_t err;
ngx_str_t name, spath, mpd;
ngx_int_t nentries, nerased;
ngx_file_info_t fi;
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup path='%V' playlen=%M", ppath, playlen);
if (ngx_open_dir(ppath, &dir) != NGX_OK) {
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, ngx_errno,
"dash: cleanup open dir failed '%V'", ppath);
return NGX_ERROR;
}
nentries = 0;
nerased = 0;
for ( ;; ) {
ngx_set_errno(0);
if (ngx_read_dir(&dir) == NGX_ERROR) {
err = ngx_errno;
if (ngx_close_dir(&dir) == NGX_ERROR) {
ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
"dash: cleanup " ngx_close_dir_n " \"%V\" failed",
ppath);
}
if (err == NGX_ENOMOREFILES) {
return nentries - nerased;
}
ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, err,
"dash: cleanup " ngx_read_dir_n
" '%V' failed", ppath);
return NGX_ERROR;
}
name.data = ngx_de_name(&dir);
if (name.data[0] == '.') {
continue;
}
name.len = ngx_de_namelen(&dir);
p = ngx_snprintf(path, sizeof(path) - 1, "%V/%V", ppath, &name);
*p = 0;
spath.data = path;
spath.len = p - path;
nentries++;
if (!dir.valid_info && ngx_de_info(path, &dir) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_CRIT, ngx_cycle->log, ngx_errno,
"dash: cleanup " ngx_de_info_n " \"%V\" failed",
&spath);
continue;
}
if (ngx_de_is_dir(&dir)) {
if (ngx_rtmp_dash_cleanup_dir(&spath, playlen) == 0) {
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup dir '%V'", &name);
/*
* null-termination gets spoiled in win32
* version of ngx_open_dir
*/
*p = 0;
if (ngx_delete_dir(path) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ERR, ngx_cycle->log, ngx_errno,
"dash: cleanup " ngx_delete_dir_n
" failed on '%V'", &spath);
} else {
nerased++;
}
}
continue;
}
if (!ngx_de_is_file(&dir)) {
continue;
}
if (name.len >= 8 && name.data[name.len - 8] == 'i' &&
name.data[name.len - 7] == 'n' &&
name.data[name.len - 6] == 'i' &&
name.data[name.len - 5] == 't' &&
name.data[name.len - 4] == '.' &&
name.data[name.len - 3] == 'm' &&
name.data[name.len - 2] == '4')
{
if (name.len == 8) {
ngx_str_set(&mpd, "index");
} else {
mpd.data = name.data;
mpd.len = name.len - 9;
}
p = ngx_snprintf(mpd_path, sizeof(mpd_path) - 1, "%V/%V.mpd",
ppath, &mpd);
*p = 0;
if (ngx_file_info(mpd_path, &fi) != NGX_FILE_ERROR) {
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup '%V' delayed, mpd exists '%s'",
&name, mpd_path);
continue;
}
ngx_log_debug2(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup '%V' allowed, mpd missing '%s'",
&name, mpd_path);
max_age = 0;
} else if (name.len >= 4 && name.data[name.len - 4] == '.' &&
name.data[name.len - 3] == 'm' &&
name.data[name.len - 2] == '4' &&
name.data[name.len - 1] == 'v')
{
max_age = playlen / 500;
} else if (name.len >= 4 && name.data[name.len - 4] == '.' &&
name.data[name.len - 3] == 'm' &&
name.data[name.len - 2] == '4' &&
name.data[name.len - 1] == 'a')
{
max_age = playlen / 500;
} else if (name.len >= 4 && name.data[name.len - 4] == '.' &&
name.data[name.len - 3] == 'm' &&
name.data[name.len - 2] == 'p' &&
name.data[name.len - 1] == 'd')
{
max_age = playlen / 500;
} else if (name.len >= 4 && name.data[name.len - 4] == '.' &&
name.data[name.len - 3] == 'r' &&
name.data[name.len - 2] == 'a' &&
name.data[name.len - 1] == 'w')
{
max_age = playlen / 1000;
} else {
ngx_log_debug1(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup skip unknown file type '%V'", &name);
continue;
}
mtime = ngx_de_mtime(&dir);
if (mtime + max_age > ngx_cached_time->sec) {
continue;
}
ngx_log_debug3(NGX_LOG_DEBUG_RTMP, ngx_cycle->log, 0,
"dash: cleanup '%V' mtime=%T age=%T",
&name, mtime, ngx_cached_time->sec - mtime);
if (ngx_delete_file(path) == NGX_FILE_ERROR) {
ngx_log_error(NGX_LOG_ERR, ngx_cycle->log, ngx_errno,
"dash: cleanup " ngx_delete_file_n " failed on '%V'",
&spath);
continue;
}
nerased++;
}
}