mirror of
https://github.com/zotanmew/nginx-rtmp-module.git
synced 2024-05-13 15:41:08 +02:00
311 lines
8.1 KiB
C
311 lines
8.1 KiB
C
/*
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* Copyright (c) 2012 Roman Arutyunyan
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*/
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#include <nginx.h>
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#include <ngx_http.h>
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#include "ngx_rtmp.h"
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#include "ngx_rtmp_live_module.h"
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#include "ngx_rtmp_record_module.h"
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static ngx_int_t ngx_rtmp_control_postconfiguration(ngx_conf_t *cf);
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static void * ngx_rtmp_control_create_loc_conf(ngx_conf_t *cf);
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static char * ngx_rtmp_control_merge_loc_conf(ngx_conf_t *cf,
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void *parent, void *child);
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#define NGX_RTMP_CONTROL_ALL 0xff
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#define NGX_RTMP_CONTROL_RECORD 0x01
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/*
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* global: stat-{bufs-{total,free,used}, total bytes in/out, bw in/out} - cscf
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*/
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typedef struct {
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ngx_uint_t control;
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} ngx_rtmp_control_loc_conf_t;
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static ngx_conf_bitmask_t ngx_rtmp_control_masks[] = {
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{ ngx_string("all"), NGX_RTMP_CONTROL_ALL },
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{ ngx_string("record"), NGX_RTMP_CONTROL_RECORD },
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{ ngx_null_string, 0 }
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};
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static ngx_command_t ngx_rtmp_control_commands[] = {
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{ ngx_string("rtmp_control"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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ngx_conf_set_bitmask_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_rtmp_control_loc_conf_t, control),
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ngx_rtmp_control_masks },
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ngx_null_command
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};
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static ngx_http_module_t ngx_rtmp_control_module_ctx = {
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NULL, /* preconfiguration */
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ngx_rtmp_control_postconfiguration, /* postconfiguration */
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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ngx_rtmp_control_create_loc_conf, /* create location configuration */
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ngx_rtmp_control_merge_loc_conf, /* merge location configuration */
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};
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ngx_module_t ngx_rtmp_control_module = {
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NGX_MODULE_V1,
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&ngx_rtmp_control_module_ctx, /* module context */
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ngx_rtmp_control_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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NULL, /* init module */
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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};
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/* /record arguments:
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* srv - server index (optional)
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* app - application name
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* name - stream name
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* rec - recorder name
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*/
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static ngx_int_t
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ngx_rtmp_control_record(ngx_http_request_t *r)
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{
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ngx_rtmp_core_main_conf_t *cmcf;
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ngx_rtmp_core_srv_conf_t **pcscf, *cscf;
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ngx_rtmp_core_app_conf_t **pcacf, *cacf;
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ngx_rtmp_live_app_conf_t *lacf;
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ngx_rtmp_live_stream_t *ls;
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ngx_rtmp_live_ctx_t *lctx;
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ngx_rtmp_record_app_conf_t *racf;
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ngx_rtmp_session_t *s;
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ngx_uint_t sn, rn, n;
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ngx_str_t srv, app, rec, name;
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size_t len;
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ngx_str_t msg;
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ngx_chain_t cl;
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ngx_buf_t *b;
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sn = 0;
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if (ngx_http_arg(r, (u_char *) "srv", sizeof("srv") - 1, &srv) == NGX_OK) {
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sn = ngx_atoi(srv.data, srv.len);
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}
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if (ngx_http_arg(r, (u_char *) "app", sizeof("app") - 1, &app) != NGX_OK) {
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ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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"rtmp_control: app not specified");
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ngx_str_set(&msg, "Application not specified");
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goto error;
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}
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ngx_memzero(&rec, sizeof(rec));
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ngx_http_arg(r, (u_char *) "rec", sizeof("rec") - 1, &rec);
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ngx_memzero(&name, sizeof(name));
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ngx_http_arg(r, (u_char *) "name", sizeof("name") - 1, &name);
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cmcf = ngx_rtmp_core_main_conf;
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if (cmcf == NULL) {
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ngx_str_set(&msg, "Missing main RTMP conf");
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goto error;
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}
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/* find server */
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if (sn >= cmcf->servers.nelts) {
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ngx_str_set(&msg, "Server index out of range");
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goto error;
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}
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pcscf = cmcf->servers.elts;
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pcscf += sn;
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cscf = *pcscf;
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/* find application */
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pcacf = cscf->applications.elts;
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cacf = NULL;
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for (n = 0; n < cscf->applications.nelts; ++n, ++pcacf) {
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if ((*pcacf)->name.len == app.len &&
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ngx_strncmp((*pcacf)->name.data, app.data, app.len) == 0)
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{
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cacf = *pcacf;
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break;
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}
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}
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if (cacf == NULL) {
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ngx_str_set(&msg, "Application not found");
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goto error;
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}
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lacf = cacf->app_conf[ngx_rtmp_live_module.ctx_index];
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racf = cacf->app_conf[ngx_rtmp_record_module.ctx_index];
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/* find live stream by name */
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for (ls = lacf->streams[ngx_hash_key(name.data, name.len)]; ls;
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ls = ls->next)
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{
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len = ngx_strlen(ls->name);
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if (name.len == len && ngx_strncmp(name.data, ls->name, name.len)
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== 0)
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{
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break;
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}
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}
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if (ls == NULL) {
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ngx_str_set(&msg, "Live stream not found");
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goto error;
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}
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/* find publisher context */
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for (lctx = ls->ctx; lctx; lctx = lctx->next) {
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if (lctx->flags & NGX_RTMP_LIVE_PUBLISHING) {
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break;
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}
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}
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if (lctx == NULL) {
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ngx_str_set(&msg, "No publisher");
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goto error;
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}
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s = lctx->session;
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/* find recorder */
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rn = ngx_rtmp_record_find(racf, &rec);
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if (rn == NGX_CONF_UNSET_UINT) {
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ngx_str_set(&msg, "Recorder not found");
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goto error;
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}
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if (r->uri.len == sizeof("/record/start") - 1 &&
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ngx_strncmp(r->uri.data, "/record/start", r->uri.len) == 0)
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{
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ngx_rtmp_record_open(s, rn, NULL);
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} else if (r->uri.len == sizeof("/record/stop") - 1 &&
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ngx_strncmp(r->uri.data, "/record/stop", r->uri.len) == 0)
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{
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ngx_rtmp_record_close(s, rn, NULL);
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} else {
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ngx_str_set(&msg, "Undefined subrequest");
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goto error;
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}
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r->header_only = 1;
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r->headers_out.status = NGX_HTTP_OK;
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return ngx_http_send_header(r);
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error:
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r->headers_out.status = NGX_HTTP_INTERNAL_SERVER_ERROR;
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r->headers_out.content_length_n = msg.len;
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b = ngx_calloc_buf(r->pool);
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if (b == NULL) {
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return NGX_ERROR;
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}
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ngx_memzero(&cl, sizeof(cl));
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cl.buf = b;
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b->start = b->pos = msg.data;
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b->end = b->last = msg.data + msg.len;
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b->memory = 1;
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b->last_buf = 1;
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ngx_http_send_header(r);
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return ngx_http_output_filter(r, &cl);
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}
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static ngx_int_t
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ngx_rtmp_control_handler(ngx_http_request_t *r)
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{
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ngx_rtmp_control_loc_conf_t *llcf;
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llcf = ngx_http_get_module_loc_conf(r, ngx_rtmp_control_module);
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if (llcf->control == 0) {
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return NGX_DECLINED;
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}
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if (llcf->control & NGX_RTMP_CONTROL_RECORD &&
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ngx_strncmp(r->uri.data, "/record/", sizeof("/record/") - 1) == 0)
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{
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return ngx_rtmp_control_record(r);
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}
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return NGX_DECLINED;
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}
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static void *
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ngx_rtmp_control_create_loc_conf(ngx_conf_t *cf)
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{
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ngx_rtmp_control_loc_conf_t *conf;
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conf = ngx_pcalloc(cf->pool, sizeof(ngx_rtmp_control_loc_conf_t));
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if (conf == NULL) {
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return NULL;
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}
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conf->control = 0;
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return conf;
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}
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static char *
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ngx_rtmp_control_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_rtmp_control_loc_conf_t *prev = parent;
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ngx_rtmp_control_loc_conf_t *conf = child;
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ngx_conf_merge_bitmask_value(conf->control, prev->control, 0);
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return NGX_CONF_OK;
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}
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static ngx_int_t
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ngx_rtmp_control_postconfiguration(ngx_conf_t *cf)
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{
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ngx_http_handler_pt *h;
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ngx_http_core_main_conf_t *cmcf;
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cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
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if (h == NULL) {
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return NGX_ERROR;
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}
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*h = ngx_rtmp_control_handler;
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return NGX_OK;
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}
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