diff src/http/modules/ngx_http_flv_module.c @ 244:500a3242dff6 NGINX_0_4_7

nginx 0.4.7 *) Feature: the ngx_http_flv_module. *) Feature: the $request_body_file variable. *) Feature: the "charset" and "source_charset" directives support the variables. *) Bugfix: if an "include" SSI command were before another "include" SSI command with an "wait" parameter, then the "wait" parameter might not work. *) Bugfix: if the "proxy_buffering off" directive was used or while working with memcached the connections might not be closed on timeout. *) Bugfix: nginx did not run on 64-bit platforms except amd64, sparc64, and ppc64.
author Igor Sysoev <http://sysoev.ru>
date Tue, 10 Oct 2006 00:00:00 +0400
parents
children b52bd034c577
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line diff
new file mode 100644
--- /dev/null
+++ b/src/http/modules/ngx_http_flv_module.c
@@ -0,0 +1,255 @@
+
+/*
+ * 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;
+    ngx_fd_t                   fd;
+    ngx_int_t                  rc;
+    ngx_uint_t                 level;
+    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_body(r);
+
+    if (rc != NGX_OK && rc != NGX_AGAIN) {
+        return rc;
+    }
+
+    if (ngx_http_map_uri_to_path(r, &path, 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);
+
+    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);
+
+    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;
+            }
+
+            len -= start;
+        }
+    }
+
+    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 = sizeof(ngx_flv_header) - 1 + 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;
+    }
+
+    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];
+
+    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);
+}
+
+
+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;
+}