Mercurial > hg > nginx
view src/http/modules/ngx_http_flv_module.c @ 1417:b23a80f9a7b8
set current peer to use it in ngx_http_upstream_free_round_robin_peer()
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Fri, 24 Aug 2007 15:29:50 +0000 |
parents | aabbf66b61ea |
children | f497ed7682a7 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> static char *ngx_http_flv(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); static ngx_command_t ngx_http_flv_commands[] = { { ngx_string("flv"), NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, ngx_http_flv, 0, 0, NULL }, ngx_null_command }; static u_char ngx_flv_header[] = "FLV\x1\x1\0\0\0\x9\0\0\0\x9"; static ngx_http_module_t ngx_http_flv_module_ctx = { NULL, /* preconfiguration */ NULL, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_flv_module = { NGX_MODULE_V1, &ngx_http_flv_module_ctx, /* module context */ ngx_http_flv_commands, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_int_t ngx_http_flv_handler(ngx_http_request_t *r) { u_char *p; off_t start, len; size_t root; ngx_fd_t fd; ngx_int_t rc; ngx_uint_t level, i; ngx_str_t path; ngx_err_t err; ngx_log_t *log; ngx_buf_t *b; ngx_chain_t out[2]; ngx_file_info_t fi; ngx_pool_cleanup_t *cln; ngx_pool_cleanup_file_t *clnf; ngx_http_core_loc_conf_t *clcf; if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { return NGX_HTTP_NOT_ALLOWED; } if (r->uri.data[r->uri.len - 1] == '/') { return NGX_DECLINED; } /* TODO: Win32 */ if (r->zero_in_uri) { return NGX_DECLINED; } rc = ngx_http_discard_request_body(r); if (rc != NGX_OK) { return rc; } if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } log = r->connection->log; ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http flv filename: \"%s\"", path.data); cln = ngx_pool_cleanup_add(r->pool, sizeof(ngx_pool_cleanup_file_t)); if (cln == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } fd = ngx_open_file(path.data, NGX_FILE_RDONLY, NGX_FILE_OPEN, 0); if (fd == NGX_INVALID_FILE) { err = ngx_errno; if (err == NGX_ENOENT || err == NGX_ENOTDIR || err == NGX_ENAMETOOLONG) { level = NGX_LOG_ERR; rc = NGX_HTTP_NOT_FOUND; } else if (err == NGX_EACCES) { level = NGX_LOG_ERR; rc = NGX_HTTP_FORBIDDEN; } else { level = NGX_LOG_CRIT; rc = NGX_HTTP_INTERNAL_SERVER_ERROR; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { ngx_log_error(level, log, err, ngx_open_file_n " \"%s\" failed", path.data); } return rc; } if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, ngx_fd_info_n " \"%s\" failed", path.data); if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, ngx_close_file_n " \"%s\" failed", path.data); } return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (!ngx_is_file(&fi)) { if (ngx_close_file(fd) == NGX_FILE_ERROR) { ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, ngx_close_file_n " \"%s\" failed", path.data); } return NGX_DECLINED; } start = 0; len = ngx_file_size(&fi); i = 1; if (r->args.len) { p = (u_char *) ngx_strstr(r->args.data, "start="); if (p) { p += 6; start = ngx_atoof(p, r->args.len - (p - r->args.data)); if (start == NGX_ERROR || start >= len) { start = 0; } if (start) { len = sizeof(ngx_flv_header) - 1 + len - start; i = 0; } } } log->action = "sending flv to client"; cln->handler = ngx_pool_cleanup_file; clnf = cln->data; clnf->fd = fd; clnf->name = path.data; clnf->log = r->pool->log; r->headers_out.status = NGX_HTTP_OK; r->headers_out.content_length_n = len; r->headers_out.last_modified_time = ngx_file_mtime(&fi); if (ngx_http_set_content_type(r) != NGX_OK) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } if (i == 0) { b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); if (b == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } b->pos = ngx_flv_header; b->last = ngx_flv_header + sizeof(ngx_flv_header) - 1; b->memory = 1; out[0].buf = b; out[0].next = &out[1]; } else { r->allow_ranges = 1; } b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); if (b == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); if (b->file == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } rc = ngx_http_send_header(r); if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { return rc; } b->file_pos = start; b->file_last = ngx_file_size(&fi); b->in_file = b->file_last ? 1: 0; b->last_buf = 1; b->last_in_chain = 1; b->file->fd = fd; b->file->name = path; b->file->log = log; out[1].buf = b; out[1].next = NULL; return ngx_http_output_filter(r, &out[i]); } static char * ngx_http_flv(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_flv_handler; return NGX_CONF_OK; }