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ngx_http_vod_conf.c
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ngx_http_vod_conf.c
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#include "ngx_http_vod_conf.h"
#include "ngx_http_vod_request_parse.h"
#include "ngx_child_http_request.h"
#include "ngx_http_vod_submodule.h"
#include "ngx_http_vod_module.h"
#include "ngx_http_vod_status.h"
#include "ngx_perf_counters.h"
#include "ngx_buffer_cache.h"
#include "vod/media_set_parser.h"
#include "vod/buffer_pool.h"
#include "vod/common.h"
#include "vod/udrm.h"
#if (NGX_HAVE_LIB_AV_CODEC)
#include "ngx_http_vod_thumb.h"
#endif // NGX_HAVE_LIB_AV_CODEC
// globals
static ngx_str_t ngx_http_vod_last_modified_default_types[] = {
ngx_null_string
};
static ngx_int_t
ngx_http_vod_init_parsers(ngx_conf_t *cf)
{
vod_status_t rc;
rc = media_set_parser_init(cf->pool, cf->temp_pool);
if (rc != VOD_OK)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to initialize media set parsers %i", rc);
return NGX_ERROR;
}
rc = udrm_init_parser(cf->pool, cf->temp_pool);
if (rc != VOD_OK)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to initialize udrm parser %i", rc);
return NGX_ERROR;
}
rc = ngx_child_request_init(cf);
if (rc != VOD_OK)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to initialize hide headers hash %i", rc);
return NGX_ERROR;
}
return NGX_OK;
}
static void *
ngx_http_vod_create_loc_conf(ngx_conf_t *cf)
{
ngx_http_vod_loc_conf_t *conf;
const ngx_http_vod_submodule_t** cur_module;
int type;
conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_vod_loc_conf_t));
if (conf == NULL)
{
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0,
"ngx_http_vod_create_loc_conf: ngx_pcalloc failed");
return NGX_CONF_ERROR;
}
// base params
conf->submodule.parse_uri_file_name = NGX_CONF_UNSET_PTR;
conf->request_handler = NGX_CONF_UNSET_PTR;
conf->segmenter.segment_duration = NGX_CONF_UNSET_UINT;
conf->segmenter.live_window_duration = NGX_CONF_UNSET;
conf->segmenter.bootstrap_segments = NGX_CONF_UNSET_PTR;
conf->segmenter.align_to_key_frames = NGX_CONF_UNSET;
conf->segmenter.get_segment_count = NGX_CONF_UNSET_PTR;
conf->segmenter.get_segment_durations = NGX_CONF_UNSET_PTR;
conf->segmenter.manifest_duration_policy = NGX_CONF_UNSET_UINT;
conf->segmenter.gop_look_ahead = NGX_CONF_UNSET_UINT;
conf->segmenter.gop_look_behind = NGX_CONF_UNSET_UINT;
conf->force_playlist_type_vod = NGX_CONF_UNSET;
conf->force_continuous_timestamps = NGX_CONF_UNSET;
conf->force_sequence_index = NGX_CONF_UNSET;
conf->initial_read_size = NGX_CONF_UNSET_SIZE;
conf->max_metadata_size = NGX_CONF_UNSET_SIZE;
conf->max_frames_size = NGX_CONF_UNSET_SIZE;
conf->max_frame_count = NGX_CONF_UNSET_UINT;
conf->segment_max_frame_count = NGX_CONF_UNSET_UINT;
conf->cache_buffer_size = NGX_CONF_UNSET_SIZE;
conf->max_upstream_headers_size = NGX_CONF_UNSET_SIZE;
conf->ignore_edit_list = NGX_CONF_UNSET;
conf->parse_hdlr_name = NGX_CONF_UNSET;
conf->parse_udta_name = NGX_CONF_UNSET;
conf->max_mapping_response_size = NGX_CONF_UNSET_SIZE;
conf->metadata_cache = NGX_CONF_UNSET_PTR;
conf->dynamic_mapping_cache = NGX_CONF_UNSET_PTR;
for (type = 0; type < CACHE_TYPE_COUNT; type++)
{
conf->response_cache[type] = NGX_CONF_UNSET_PTR;
conf->mapping_cache[type] = NGX_CONF_UNSET_PTR;
}
for (type = 0; type < EXPIRES_TYPE_COUNT; type++)
{
conf->expires[type] = NGX_CONF_UNSET;
}
conf->last_modified_time = NGX_CONF_UNSET;
conf->drm_enabled = NGX_CONF_UNSET;
conf->drm_single_key = NGX_CONF_UNSET;
conf->drm_clear_lead_segment_count = NGX_CONF_UNSET_UINT;
conf->drm_max_info_length = NGX_CONF_UNSET_SIZE;
conf->drm_info_cache = NGX_CONF_UNSET_PTR;
conf->min_single_nalu_per_frame_segment = NGX_CONF_UNSET_UINT;
#if (NGX_THREADS)
conf->open_file_thread_pool = NGX_CONF_UNSET_PTR;
#endif // NGX_THREADS
// submodules
for (cur_module = submodules; *cur_module != NULL; cur_module++)
{
(*cur_module)->create_loc_conf(cf, (u_char*)conf + (*cur_module)->conf_offset);
}
return conf;
}
static char *
ngx_http_vod_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
{
ngx_http_vod_loc_conf_t *prev = parent;
ngx_http_vod_loc_conf_t *conf = child;
const ngx_http_vod_submodule_t** cur_module;
ngx_int_t rc;
int type;
char* err;
// base params
ngx_conf_merge_str_value(conf->upstream_location, prev->upstream_location, "");
if (conf->submodule.parse_uri_file_name == NGX_CONF_UNSET_PTR)
{
if (prev->submodule.parse_uri_file_name != NGX_CONF_UNSET_PTR)
{
conf->submodule = prev->submodule;
}
else
{
// zero module = serve files
ngx_memzero(&conf->submodule, sizeof(conf->submodule));
}
}
ngx_conf_merge_str_value(conf->remote_upstream_location, prev->remote_upstream_location, "");
ngx_conf_merge_ptr_value(conf->request_handler, prev->request_handler, ngx_http_vod_local_request_handler);
ngx_conf_merge_str_value(conf->multi_uri_suffix, prev->multi_uri_suffix, ".urlset");
ngx_conf_merge_uint_value(conf->segmenter.segment_duration, prev->segmenter.segment_duration, 10000);
ngx_conf_merge_value(conf->segmenter.live_window_duration, prev->segmenter.live_window_duration, 30000);
ngx_conf_merge_ptr_value(conf->segmenter.bootstrap_segments, prev->segmenter.bootstrap_segments, NULL);
ngx_conf_merge_value(conf->segmenter.align_to_key_frames, prev->segmenter.align_to_key_frames, 0);
ngx_conf_merge_ptr_value(conf->segmenter.get_segment_count, prev->segmenter.get_segment_count, segmenter_get_segment_count_last_short);
ngx_conf_merge_ptr_value(conf->segmenter.get_segment_durations, prev->segmenter.get_segment_durations, segmenter_get_segment_durations_estimate);
ngx_conf_merge_uint_value(conf->segmenter.manifest_duration_policy, prev->segmenter.manifest_duration_policy, MDP_MAX);
ngx_conf_merge_uint_value(conf->segmenter.gop_look_ahead, prev->segmenter.gop_look_ahead, 1000);
ngx_conf_merge_uint_value(conf->segmenter.gop_look_behind, prev->segmenter.gop_look_behind, 10000);
ngx_conf_merge_value(conf->force_playlist_type_vod, prev->force_playlist_type_vod, 0);
ngx_conf_merge_value(conf->force_continuous_timestamps, prev->force_continuous_timestamps, 0);
ngx_conf_merge_value(conf->force_sequence_index, prev->force_sequence_index, 0);
if (conf->secret_key == NULL)
{
conf->secret_key = prev->secret_key;
}
if (conf->encryption_iv_seed == NULL)
{
conf->encryption_iv_seed = prev->encryption_iv_seed;
}
if (conf->base_url == NULL)
{
conf->base_url = prev->base_url;
}
if (conf->segments_base_url == NULL)
{
conf->segments_base_url = prev->segments_base_url;
}
ngx_conf_merge_ptr_value(conf->metadata_cache, prev->metadata_cache, NULL);
ngx_conf_merge_ptr_value(conf->dynamic_mapping_cache, prev->dynamic_mapping_cache, NULL);
for (type = 0; type < CACHE_TYPE_COUNT; type++)
{
ngx_conf_merge_ptr_value(conf->response_cache[type], prev->response_cache[type], NULL);
ngx_conf_merge_ptr_value(conf->mapping_cache[type], prev->mapping_cache[type], NULL);
}
for (type = 0; type < EXPIRES_TYPE_COUNT; type++)
{
ngx_conf_merge_value(conf->expires[type], prev->expires[type], -1);
}
ngx_conf_merge_size_value(conf->initial_read_size, prev->initial_read_size, 4096);
ngx_conf_merge_size_value(conf->max_metadata_size, prev->max_metadata_size, 128 * 1024 * 1024);
ngx_conf_merge_size_value(conf->max_frames_size, prev->max_frames_size, 16 * 1024 * 1024);
ngx_conf_merge_uint_value(conf->max_frame_count, prev->max_frame_count, 1024 * 1024);
ngx_conf_merge_uint_value(conf->segment_max_frame_count, prev->segment_max_frame_count, 64 * 1024);
ngx_conf_merge_size_value(conf->cache_buffer_size, prev->cache_buffer_size, 256 * 1024);
ngx_conf_merge_size_value(conf->max_upstream_headers_size, prev->max_upstream_headers_size, 4 * 1024);
if (conf->output_buffer_pool == NULL)
{
conf->output_buffer_pool = prev->output_buffer_pool;
}
ngx_conf_merge_value(conf->ignore_edit_list, prev->ignore_edit_list, 0);
ngx_conf_merge_value(conf->parse_hdlr_name, prev->parse_hdlr_name, 0);
ngx_conf_merge_value(conf->parse_udta_name, prev->parse_udta_name, 0);
conf->parse_flags = 0;
if (!conf->ignore_edit_list)
{
conf->parse_flags |= PARSE_FLAG_EDIT_LIST;
}
if (conf->parse_hdlr_name)
{
conf->parse_flags |= PARSE_FLAG_HDLR_NAME;
}
if (conf->parse_udta_name)
{
conf->parse_flags |= PARSE_FLAG_UDTA_NAME;
}
if (conf->upstream_extra_args == NULL)
{
conf->upstream_extra_args = prev->upstream_extra_args;
}
ngx_conf_merge_str_value(conf->path_response_prefix, prev->path_response_prefix, "{\"sequences\":[{\"clips\":[{\"type\":\"source\",\"path\":\"");
ngx_conf_merge_str_value(conf->path_response_postfix, prev->path_response_postfix, "\"}]}]}");
ngx_conf_merge_size_value(conf->max_mapping_response_size, prev->max_mapping_response_size, 1024);
if (conf->notification_uri == NULL)
{
conf->notification_uri = prev->notification_uri;
}
if (conf->dynamic_clip_map_uri == NULL)
{
conf->dynamic_clip_map_uri = prev->dynamic_clip_map_uri;
}
if (conf->source_clip_map_uri == NULL)
{
conf->source_clip_map_uri = prev->source_clip_map_uri;
}
if (conf->redirect_segments_url == NULL)
{
conf->redirect_segments_url = prev->redirect_segments_url;
}
if (conf->media_set_map_uri == NULL)
{
conf->media_set_map_uri = prev->media_set_map_uri;
}
if (conf->apply_dynamic_mapping == NULL)
{
conf->apply_dynamic_mapping = prev->apply_dynamic_mapping;
}
if (conf->media_set_override_json == NULL)
{
conf->media_set_override_json = prev->media_set_override_json;
}
ngx_conf_merge_str_value(conf->fallback_upstream_location, prev->fallback_upstream_location, "");
ngx_conf_merge_str_value(conf->proxy_header.key, prev->proxy_header.key, "X-Kaltura-Proxy");
ngx_conf_merge_str_value(conf->proxy_header.value, prev->proxy_header.value, "dumpApiRequest");
ngx_conf_merge_value(conf->last_modified_time, prev->last_modified_time, -1);
if (ngx_http_merge_types(
cf,
&conf->last_modified_types_keys,
&conf->last_modified_types,
&prev->last_modified_types_keys,
&prev->last_modified_types,
ngx_http_vod_last_modified_default_types) != NGX_OK)
{
return NGX_CONF_ERROR;
}
ngx_conf_merge_value(conf->drm_enabled, prev->drm_enabled, 0);
ngx_conf_merge_value(conf->drm_single_key, prev->drm_single_key, 0);
ngx_conf_merge_uint_value(conf->drm_clear_lead_segment_count, prev->drm_clear_lead_segment_count, 1);
ngx_conf_merge_str_value(conf->drm_upstream_location, prev->drm_upstream_location, "");
ngx_conf_merge_size_value(conf->drm_max_info_length, prev->drm_max_info_length, 4096);
ngx_conf_merge_ptr_value(conf->drm_info_cache, prev->drm_info_cache, NULL);
if (conf->drm_request_uri == NULL)
{
conf->drm_request_uri = prev->drm_request_uri;
}
ngx_conf_merge_uint_value(conf->min_single_nalu_per_frame_segment, prev->min_single_nalu_per_frame_segment, 0);
ngx_conf_merge_str_value(conf->clip_to_param_name, prev->clip_to_param_name, "clipTo");
ngx_conf_merge_str_value(conf->clip_from_param_name, prev->clip_from_param_name, "clipFrom");
ngx_conf_merge_str_value(conf->tracks_param_name, prev->tracks_param_name, "tracks");
ngx_conf_merge_str_value(conf->time_shift_param_name, prev->time_shift_param_name, "shift");
ngx_conf_merge_str_value(conf->speed_param_name, prev->speed_param_name, "speed");
ngx_conf_merge_str_value(conf->lang_param_name, prev->lang_param_name, "lang");
if (conf->perf_counters_zone == NULL)
{
conf->perf_counters_zone = prev->perf_counters_zone;
}
#if (NGX_THREADS)
ngx_conf_merge_ptr_value(conf->open_file_thread_pool, prev->open_file_thread_pool, NULL);
#endif // NGX_THREADS
// validate vod_upstream / vod_upstream_host_header used when needed
if (conf->request_handler == ngx_http_vod_remote_request_handler)
{
if (conf->upstream_location.len == 0)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_upstream_location\" is mandatory for remote mode");
return NGX_CONF_ERROR;
}
}
if (conf->segmenter.segment_duration <= 0)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_segment_duration\" must be positive");
return NGX_CONF_ERROR;
}
#if (NGX_HAVE_LIB_AV_CODEC)
if (conf->submodule.name == thumb.name)
{
conf->segmenter.align_to_key_frames = 1;
}
#endif // NGX_HAVE_LIB_AV_CODEC
rc = segmenter_init_config(&conf->segmenter, cf->pool);
if (rc != VOD_OK)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to initialize the segmenter %i", rc);
return NGX_CONF_ERROR;
}
if (conf->drm_enabled)
{
if (conf->drm_upstream_location.len == 0)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_drm_upstream_location\" is mandatory for drm");
return NGX_CONF_ERROR;
}
}
// validate the lengths of uri parameters
if (conf->clip_to_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_clip_to_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
if (conf->clip_from_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_clip_from_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
if (conf->tracks_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_tracks_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
if (conf->time_shift_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_time_shift_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
if (conf->speed_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_speed_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
if (conf->lang_param_name.len > MAX_URI_PARAM_NAME_LEN)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"\"vod_lang_param_name\" should not be more than %d characters", MAX_URI_PARAM_NAME_LEN);
return NGX_CONF_ERROR;
}
// calculate the proxy header lower case and hash
conf->proxy_header.lowcase_key = ngx_palloc(cf->pool, conf->proxy_header.key.len);
if (conf->proxy_header.lowcase_key == NULL)
{
return NGX_CONF_ERROR;
}
ngx_strlow(conf->proxy_header.lowcase_key, conf->proxy_header.key.data, conf->proxy_header.key.len);
conf->proxy_header.hash = ngx_hash_key(conf->proxy_header.lowcase_key, conf->proxy_header.key.len);
// init the hash table of the uri params (clipTo, clipFrom etc.)
rc = ngx_http_vod_init_uri_params_hash(cf, conf);
if (rc != NGX_OK)
{
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0,
"ngx_http_vod_merge_loc_conf: ngx_http_vod_init_uri_params_hash failed");
return NGX_CONF_ERROR;
}
// merge the submodules configuration
for (cur_module = submodules; *cur_module != NULL; cur_module++)
{
err = (*cur_module)->merge_loc_conf(
cf,
conf,
(u_char*)conf + (*cur_module)->conf_offset,
(u_char*)prev + (*cur_module)->conf_offset);
if (err != NGX_CONF_OK)
{
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0,
"ngx_http_vod_merge_loc_conf: submodule merge_loc_conf failed");
return err;
}
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_set_time_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
char *p = conf;
time_t *sp;
ngx_str_t *value;
ngx_conf_post_t *post;
sp = (time_t *)(p + cmd->offset);
if (*sp != NGX_CONF_UNSET) {
return "is duplicate";
}
value = cf->args->elts;
*sp = ngx_http_parse_time(value[1].data, value[1].len);
if (*sp == (time_t)NGX_ERROR) {
return "invalid value";
}
if (cmd->post) {
post = cmd->post;
return post->post_handler(cf, post, sp);
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_set_signed_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
char *p = conf;
ngx_int_t *np;
ngx_str_t *value;
ngx_conf_post_t *post;
np = (ngx_int_t *)(p + cmd->offset);
if (*np != NGX_CONF_UNSET) {
return "is duplicate";
}
value = cf->args->elts;
if (value[1].len > 0 && value[1].data[0] == '-')
{
*np = ngx_atoi(value[1].data + 1, value[1].len - 1);
if (*np == NGX_ERROR) {
return "invalid number";
}
*np = -(*np);
}
else
{
*np = ngx_atoi(value[1].data, value[1].len);
if (*np == NGX_ERROR) {
return "invalid number";
}
}
if (cmd->post) {
post = cmd->post;
return post->post_handler(cf, post, np);
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_mode_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_vod_loc_conf_t *vod_conf = conf;
ngx_str_t *value;
value = cf->args->elts;
if (ngx_strcasecmp(value[1].data, (u_char *) "local") == 0)
{
vod_conf->request_handler = ngx_http_vod_local_request_handler;
}
else if (ngx_strcasecmp(value[1].data, (u_char *) "remote") == 0)
{
vod_conf->request_handler = ngx_http_vod_remote_request_handler;
}
else if (ngx_strcasecmp(value[1].data, (u_char *) "mapped") == 0)
{
vod_conf->request_handler = ngx_http_vod_mapped_request_handler;
}
else
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid value \"%s\" in \"%s\" directive, "
"it must be \"local\", \"remote\" or \"mapped\"",
value[1].data, cmd->name.data);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_segment_count_policy_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_vod_loc_conf_t *vod_conf = conf;
ngx_str_t *value;
value = cf->args->elts;
if (ngx_strcasecmp(value[1].data, (u_char *) "last_short") == 0)
{
vod_conf->segmenter.get_segment_count = segmenter_get_segment_count_last_short;
}
else if (ngx_strcasecmp(value[1].data, (u_char *) "last_long") == 0)
{
vod_conf->segmenter.get_segment_count = segmenter_get_segment_count_last_long;
}
else if (ngx_strcasecmp(value[1].data, (u_char *) "last_rounded") == 0)
{
vod_conf->segmenter.get_segment_count = segmenter_get_segment_count_last_rounded;
}
else
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid value \"%s\" in \"%s\" directive, "
"it must be \"last_short\", \"last_long\" or \"last_rounded\"",
value[1].data, cmd->name.data);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
#if (NGX_THREADS)
static char *
ngx_http_vod_thread_pool_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_thread_pool_t **tp = (ngx_thread_pool_t **)((u_char*)conf + cmd->offset);
ngx_str_t *value;
if (*tp != NGX_CONF_UNSET_PTR) {
return "is duplicate";
}
value = cf->args->elts;
if (cf->args->nelts > 1)
{
*tp = ngx_thread_pool_add(cf, &value[1]);
}
else
{
*tp = ngx_thread_pool_add(cf, NULL);
}
if (*tp == NULL)
{
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
#endif // NGX_THREADS
static char *
ngx_http_vod_manifest_segment_durations_mode_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_vod_loc_conf_t *vod_conf = conf;
ngx_str_t *value;
value = cf->args->elts;
if (ngx_strcasecmp(value[1].data, (u_char *) "estimate") == 0)
{
vod_conf->segmenter.get_segment_durations = segmenter_get_segment_durations_estimate;
}
else if (ngx_strcasecmp(value[1].data, (u_char *) "accurate") == 0)
{
vod_conf->segmenter.get_segment_durations = segmenter_get_segment_durations_accurate;
}
else
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid value \"%s\" in \"%s\" directive, "
"it must be \"estimate\" or \"accurate\"",
value[1].data, cmd->name.data);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_cache_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_buffer_cache_t **cache = (ngx_buffer_cache_t **)((u_char*)conf + cmd->offset);
ngx_str_t *value;
ssize_t size;
time_t expiration;
value = cf->args->elts;
if (*cache != NGX_CONF_UNSET_PTR)
{
return "is duplicate";
}
if (ngx_strcmp(value[1].data, "off") == 0)
{
*cache = NULL;
return NGX_CONF_OK;
}
if (cf->args->nelts < 3)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"size not specified in \"%V\"", &cmd->name);
return NGX_CONF_ERROR;
}
size = ngx_parse_size(&value[2]);
if (size == NGX_ERROR)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid size %V", &value[2]);
return NGX_CONF_ERROR;
}
if (cf->args->nelts > 3)
{
expiration = ngx_parse_time(&value[3], 1);
if (expiration == (time_t)NGX_ERROR)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid expiration %V", &value[3]);
return NGX_CONF_ERROR;
}
}
else
{
expiration = 0;
}
*cache = ngx_buffer_cache_create(cf, &value[1], size, expiration, &ngx_http_vod_module);
if (*cache == NULL)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to create cache");
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_perf_counters_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_shm_zone_t **zone = (ngx_shm_zone_t **)((u_char*)conf + cmd->offset);
ngx_str_t *value;
value = cf->args->elts;
if (*zone != NULL)
{
return "is duplicate";
}
if (ngx_strcmp(value[1].data, "off") == 0)
{
*zone = NULL;
return NGX_CONF_OK;
}
*zone = ngx_perf_counters_create_zone(cf, &value[1], &ngx_http_vod_module);
if (*zone == NULL)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"failed to create perf counters cache zone");
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char*
ngx_http_vod_buffer_pool_command(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
buffer_pool_t** buffer_pool = (buffer_pool_t **)((u_char*)conf + cmd->offset);
ngx_str_t *value;
ngx_int_t count;
ssize_t buffer_size;
if (*buffer_pool != NULL)
{
return "is duplicate";
}
value = cf->args->elts;
buffer_size = ngx_parse_size(&value[1]);
if (buffer_size == NGX_ERROR)
{
return "invalid size";
}
count = ngx_atoi(value[2].data, value[2].len);
if (count == NGX_ERROR)
{
return "invalid count";
}
*buffer_pool = buffer_pool_create(cf->pool, cf->log, buffer_size, count);
if (*buffer_pool == NULL)
{
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
const ngx_http_vod_submodule_t** cur_module;
ngx_http_vod_loc_conf_t *vod_conf = conf;
ngx_http_core_loc_conf_t *clcf;
ngx_flag_t found_module;
ngx_str_t *value;
ngx_str_t module_names;
size_t module_names_size;
u_char* p;
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
clcf->handler = ngx_http_vod_handler;
value = cf->args->elts;
// file serve
if (ngx_strcasecmp(value[1].data, (u_char *) "none") == 0)
{
ngx_memzero(&vod_conf->submodule, sizeof(vod_conf->submodule));
return NGX_CONF_OK;
}
// submodule
found_module = 0;
module_names_size = 1;
for (cur_module = submodules; *cur_module != NULL; cur_module++)
{
if (ngx_strcasecmp(value[1].data, (*cur_module)->name) == 0)
{
vod_conf->submodule = **cur_module;
found_module = 1;
break;
}
module_names_size += (*cur_module)->name_len + 1;
}
if (!found_module)
{
// combine the module names
module_names.data = ngx_palloc(cf->pool, module_names_size);
if (module_names.data == NULL)
{
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "failed to allocate modules names");
return NGX_CONF_ERROR;
}
p = module_names.data;
for (cur_module = submodules; *cur_module != NULL; cur_module++)
{
*p++ = ',';
p = ngx_copy(p, (*cur_module)->name, (*cur_module)->name_len);
}
*p = '\0';
module_names.len = p - module_names.data;
// print the error message
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
"invalid value \"%s\" in \"%s\" directive, "
"it must be one of: none%V",
value[1].data, cmd->name.data, &module_names);
return NGX_CONF_ERROR;
}
return NGX_CONF_OK;
}
static char *
ngx_http_vod_status(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
{
ngx_http_core_loc_conf_t *clcf;
clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
clcf->handler = ngx_http_vod_status_handler;
return NGX_CONF_OK;
}
static ngx_conf_enum_t manifest_duration_policies[] = {
{ ngx_string("max"), MDP_MAX },
{ ngx_string("min"), MDP_MIN },
{ ngx_null_string, 0 }
};
ngx_command_t ngx_http_vod_commands[] = {
// basic parameters
{ ngx_string("vod"),
NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_vod,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("vod_mode"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_vod_mode_command,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("vod_status"),
NGX_HTTP_LOC_CONF | NGX_CONF_NOARGS,
ngx_http_vod_status,
0,
0,
NULL },
// output generation parameters
{ ngx_string("vod_multi_uri_suffix"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_str_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, multi_uri_suffix),
NULL },
{ ngx_string("vod_segment_duration"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.segment_duration),
NULL },
{ ngx_string("vod_live_window_duration"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_vod_set_signed_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.live_window_duration),
NULL },
{ ngx_string("vod_bootstrap_segment_durations"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_str_array_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.bootstrap_segments),
NULL },
{ ngx_string("vod_align_segments_to_key_frames"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.align_to_key_frames),
NULL },
{ ngx_string("vod_gop_look_ahead"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.gop_look_ahead),
NULL },
{ ngx_string("vod_gop_look_behind"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.gop_look_behind),
NULL },
{ ngx_string("vod_segment_count_policy"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_vod_segment_count_policy_command,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("vod_manifest_duration_policy"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_enum_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segmenter.manifest_duration_policy),
manifest_duration_policies },
{ ngx_string("vod_manifest_segment_durations_mode"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_vod_manifest_segment_durations_mode_command,
NGX_HTTP_LOC_CONF_OFFSET,
0,
NULL },
{ ngx_string("vod_force_playlist_type_vod"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, force_playlist_type_vod),
NULL },
{ ngx_string("vod_force_continuous_timestamps"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, force_continuous_timestamps),
NULL },
{ ngx_string("vod_force_sequence_index"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_conf_set_flag_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, force_sequence_index),
NULL },
{ ngx_string("vod_secret_key"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_set_complex_value_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, secret_key),
NULL },
{ ngx_string("vod_encryption_iv_seed"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_set_complex_value_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, encryption_iv_seed),
NULL },
{ ngx_string("vod_base_url"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_set_complex_value_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, base_url),
NULL },
{ ngx_string("vod_segments_base_url"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE1,
ngx_http_set_complex_value_slot,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, segments_base_url),
NULL },
// mp4 reading parameters
{ ngx_string("vod_metadata_cache"),
NGX_HTTP_MAIN_CONF | NGX_HTTP_SRV_CONF | NGX_HTTP_LOC_CONF | NGX_CONF_TAKE123,
ngx_http_vod_cache_command,
NGX_HTTP_LOC_CONF_OFFSET,
offsetof(ngx_http_vod_loc_conf_t, metadata_cache),
NULL },