static ngx_int_t
ngx_http_vod_hls_parse_uri_file_name(
ngx_http_request_t *r,
ngx_http_vod_loc_conf_t *conf,
u_char* start_pos,
u_char* end_pos,
request_params_t* request_params,
const ngx_http_vod_request_t** request)
{
uint32_t flags;
ngx_int_t rc;
// ts segment
if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.segment_file_name_prefix, ts_file_ext))
{
start_pos += conf->hls.m3u8_config.segment_file_name_prefix.len;
end_pos -= (sizeof(ts_file_ext) - 1);
*request = &hls_ts_segment_request;
flags = PARSE_FILE_NAME_EXPECT_SEGMENT_INDEX;
}
// vtt segment
else if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.segment_file_name_prefix, vtt_file_ext))
{
start_pos += conf->hls.m3u8_config.segment_file_name_prefix.len;
end_pos -= (sizeof(vtt_file_ext) - 1);
*request = &hls_vtt_segment_request;
flags = PARSE_FILE_NAME_EXPECT_SEGMENT_INDEX;
}
// manifest
else if (ngx_http_vod_ends_with_static(start_pos, end_pos, m3u8_file_ext))
{
end_pos -= (sizeof(m3u8_file_ext) - 1);
// make sure the file name begins with 'index' or 'iframes'
if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.m3u8_config.index_file_name_prefix))
{
*request = &hls_index_request;
start_pos += conf->hls.m3u8_config.index_file_name_prefix.len;
flags = 0;
}
else if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.iframes_file_name_prefix))
{
*request = &hls_iframes_request;
start_pos += conf->hls.iframes_file_name_prefix.len;
flags = 0;
}
else if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.master_file_name_prefix))
{
*request = &hls_master_request;
start_pos += conf->hls.master_file_name_prefix.len;
flags = PARSE_FILE_NAME_MULTI_STREAMS_PER_TYPE;
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: unidentified m3u8 request");
return NGX_HTTP_BAD_REQUEST;
}
}
// encryption key
else if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.encryption_key_file_name, key_file_ext) &&
!conf->drm_enabled)
{
start_pos += conf->hls.m3u8_config.encryption_key_file_name.len;
end_pos -= (sizeof(key_file_ext) - 1);
*request = &hls_enc_key_request;
flags = 0;
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: unidentified request");
return NGX_HTTP_BAD_REQUEST;
}
// parse the required tracks string
rc = ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, flags, request_params);
if (rc != NGX_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: ngx_http_vod_parse_uri_file_name failed %i", rc);
return rc;
}
return NGX_OK;
}
ngx_int_t
ngx_http_vod_mss_parse_uri_file_name(
ngx_http_request_t *r,
ngx_http_vod_loc_conf_t *conf,
u_char* start_pos,
u_char* end_pos,
ngx_http_vod_request_params_t* request_params)
{
fragment_params_t fragment_params;
ngx_int_t rc;
// fragment
if (end_pos[-1] == ')')
{
if (!ngx_http_vod_parse_string(fragment_match_definition, start_pos, end_pos, &fragment_params))
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: ngx_http_vod_parse_string failed");
return NGX_HTTP_BAD_REQUEST;
}
if (fragment_params.media_type.len != sizeof(MSS_STREAM_TYPE_VIDEO) - 1)
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: invalid media type length %uz", fragment_params.media_type.len);
return NGX_HTTP_BAD_REQUEST;
}
request_params->required_files = (1 << MSS_FILE_INDEX(fragment_params.bitrate));
if (ngx_memcmp(fragment_params.media_type.data, MSS_STREAM_TYPE_VIDEO, sizeof(MSS_STREAM_TYPE_VIDEO) - 1) == 0)
{
request_params->required_tracks[MEDIA_TYPE_VIDEO] = (1 << MSS_TRACK_INDEX(fragment_params.bitrate));
}
else if (ngx_memcmp(fragment_params.media_type.data, MSS_STREAM_TYPE_AUDIO, sizeof(MSS_STREAM_TYPE_AUDIO) - 1) == 0)
{
request_params->required_tracks[MEDIA_TYPE_AUDIO] = (1 << MSS_TRACK_INDEX(fragment_params.bitrate));
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: invalid media type %V", &fragment_params.media_type);
return NGX_HTTP_BAD_REQUEST;
}
request_params->segment_index = segmenter_get_segment_index(&conf->segmenter, fragment_params.time / 10000);
request_params->request = conf->drm_enabled ? &mss_playready_fragment_request : &mss_fragment_request;
return NGX_OK;
}
// manifest
if (!ngx_http_vod_starts_with(start_pos, end_pos, &conf->mss.manifest_file_name_prefix))
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: unidentified request");
return NGX_HTTP_BAD_REQUEST;
}
request_params->request = &mss_manifest_request;
start_pos += conf->mss.manifest_file_name_prefix.len;
rc = ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, FALSE, request_params);
if (rc != NGX_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: ngx_http_vod_parse_uri_file_name failed %i", rc);
return rc;
}
return NGX_OK;
}
static ngx_int_t
ngx_http_vod_hls_parse_uri_file_name(
ngx_http_request_t *r,
ngx_http_vod_loc_conf_t *conf,
u_char* start_pos,
u_char* end_pos,
request_params_t* request_params,
const ngx_http_vod_request_t** request)
{
bool_t expect_segment_index;
ngx_int_t rc;
// segment
if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.segment_file_name_prefix, ts_file_ext))
{
start_pos += conf->hls.m3u8_config.segment_file_name_prefix.len;
end_pos -= (sizeof(ts_file_ext) - 1);
*request = &hls_segment_request;
expect_segment_index = TRUE;
}
// manifest
else if (ngx_http_vod_ends_with_static(start_pos, end_pos, m3u8_file_ext))
{
end_pos -= (sizeof(m3u8_file_ext) - 1);
// make sure the file name begins with 'index' or 'iframes'
if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.m3u8_config.index_file_name_prefix))
{
*request = &hls_index_request;
start_pos += conf->hls.m3u8_config.index_file_name_prefix.len;
}
else if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.iframes_file_name_prefix))
{
*request = &hls_iframes_request;
start_pos += conf->hls.iframes_file_name_prefix.len;
}
else if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hls.master_file_name_prefix))
{
*request = &hls_master_request;
start_pos += conf->hls.master_file_name_prefix.len;
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: unidentified m3u8 request");
return NGX_HTTP_BAD_REQUEST;
}
expect_segment_index = FALSE;
}
// encryption key
else if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.encryption_key_file_name, key_file_ext))
{
start_pos += conf->hls.m3u8_config.encryption_key_file_name.len;
end_pos -= (sizeof(key_file_ext) - 1);
*request = &hls_enc_key_request;
expect_segment_index = FALSE;
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: unidentified request");
return NGX_HTTP_BAD_REQUEST;
}
// parse the required tracks string
rc = ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, expect_segment_index, request_params);
if (rc != NGX_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ngx_http_vod_hls_parse_uri_file_name: ngx_http_vod_parse_uri_file_name failed %i", rc);
return rc;
}
return NGX_OK;
}
static ngx_int_t
ngx_http_vod_hds_parse_uri_file_name(
ngx_http_request_t *r,
ngx_http_vod_loc_conf_t *conf,
u_char* start_pos,
u_char* end_pos,
request_params_t* request_params,
const ngx_http_vod_request_t** request)
{
ngx_int_t rc;
// fragment request
if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->hds.manifest_config.fragment_file_name_prefix))
{
// sample fragment file name: frag-f3-v1-a1-Seg1-Frag1
start_pos += conf->hds.manifest_config.fragment_file_name_prefix.len;
// parse the fragment index
end_pos = ngx_http_vod_extract_uint32_token_reverse(start_pos, end_pos, &request_params->segment_index);
if (request_params->segment_index == 0)
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hds_parse_uri_file_name: failed to parse fragment index");
return NGX_HTTP_BAD_REQUEST;
}
request_params->segment_index--; // convert to 0-based
// extract the '-Seg1-Frag' part
end_pos -= sizeof("-Seg1-Frag") - 1;
if (end_pos < start_pos ||
ngx_memcmp(end_pos, "-Seg1-Frag", sizeof("-Seg1-Frag") - 1) != 0)
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hds_parse_uri_file_name: invalid segment / fragment requested");
return NGX_HTTP_BAD_REQUEST;
}
*request = &hds_fragment_request;
}
// manifest request
else if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hds.manifest_file_name_prefix, manifest_file_ext))
{
start_pos += conf->hds.manifest_file_name_prefix.len;
end_pos -= (sizeof(manifest_file_ext) - 1);
*request = &hds_manifest_request;
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_hds_parse_uri_file_name: unidentified request");
return NGX_HTTP_BAD_REQUEST;
}
// parse the required tracks string
rc = ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, FALSE, request_params);
if (rc != NGX_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ngx_http_vod_hds_parse_uri_file_name: ngx_http_vod_parse_uri_file_name failed %i", rc);
return rc;
}
return NGX_OK;
}
ngx_int_t
ngx_http_vod_mss_parse_uri_file_name(
ngx_http_request_t *r,
ngx_http_vod_loc_conf_t *conf,
u_char* start_pos,
u_char* end_pos,
request_params_t* request_params,
const ngx_http_vod_request_t** request)
{
fragment_params_t fragment_params;
ngx_int_t rc;
// fragment
if (end_pos[-1] == ')')
{
if (!ngx_http_vod_parse_string(fragment_match_definition, start_pos, end_pos, &fragment_params))
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: ngx_http_vod_parse_string failed");
return NGX_HTTP_BAD_REQUEST;
}
if (fragment_params.media_type.len != sizeof(MSS_STREAM_TYPE_VIDEO) - 1)
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: invalid media type length %uz", fragment_params.media_type.len);
return NGX_HTTP_BAD_REQUEST;
}
request_params->sequences_mask = (1 << mss_sequence_index(fragment_params.bitrate));
if (ngx_memcmp(fragment_params.media_type.data, MSS_STREAM_TYPE_VIDEO, sizeof(MSS_STREAM_TYPE_VIDEO) - 1) == 0)
{
request_params->tracks_mask[MEDIA_TYPE_VIDEO] = (1 << mss_track_index(fragment_params.bitrate));
}
else if (ngx_memcmp(fragment_params.media_type.data, MSS_STREAM_TYPE_AUDIO, sizeof(MSS_STREAM_TYPE_AUDIO) - 1) == 0)
{
request_params->tracks_mask[MEDIA_TYPE_AUDIO] = (1 << mss_track_index(fragment_params.bitrate));
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: invalid media type %V", &fragment_params.media_type);
return NGX_HTTP_BAD_REQUEST;
}
request_params->segment_time = fragment_params.time / 10000;
// Note: assuming no discontinuity, if this changes the segment index will be recalculated
request_params->segment_index = segmenter_get_segment_index_no_discontinuity(
&conf->segmenter,
request_params->segment_time);
*request = conf->drm_enabled ? &mss_playready_fragment_request : &mss_fragment_request;
return NGX_OK;
}
// manifest
else if (ngx_http_vod_starts_with(start_pos, end_pos, &conf->mss.manifest_file_name_prefix))
{
*request = &mss_manifest_request;
start_pos += conf->mss.manifest_file_name_prefix.len;
rc = ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, FALSE, request_params);
if (rc != NGX_OK)
{
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: ngx_http_vod_parse_uri_file_name failed %i", rc);
return rc;
}
return NGX_OK;
}
// fragment with non-standard format (used with redirect)
else if (ngx_http_vod_match_prefix_postfix(start_pos, end_pos, &conf->hls.m3u8_config.segment_file_name_prefix, m4s_file_ext))
{
start_pos += conf->hls.m3u8_config.segment_file_name_prefix.len;
end_pos -= (sizeof(m4s_file_ext) - 1);
*request = conf->drm_enabled ? &mss_playready_fragment_request : &mss_fragment_request;
return ngx_http_vod_parse_uri_file_name(r, start_pos, end_pos, TRUE, request_params);
}
else
{
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
"ngx_http_vod_mss_parse_uri_file_name: unidentified request");
return NGX_HTTP_BAD_REQUEST;
}
}
