mirror of
https://github.com/nginx/nginx.git
synced 2024-12-16 22:47:47 +08:00
291 lines
7.5 KiB
C
291 lines
7.5 KiB
C
|
|
/*
|
|
* Copyright (C) Igor Sysoev
|
|
* Copyright (C) Nginx, Inc.
|
|
*/
|
|
|
|
|
|
#include <ngx_config.h>
|
|
#include <ngx_core.h>
|
|
#include <ngx_http.h>
|
|
|
|
|
|
static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r);
|
|
static ngx_int_t ngx_http_static_init(ngx_conf_t *cf);
|
|
|
|
|
|
ngx_http_module_t ngx_http_static_module_ctx = {
|
|
NULL, /* preconfiguration */
|
|
ngx_http_static_init, /* 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_static_module = {
|
|
NGX_MODULE_V1,
|
|
&ngx_http_static_module_ctx, /* module context */
|
|
NULL, /* 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_static_handler(ngx_http_request_t *r)
|
|
{
|
|
u_char *last, *location;
|
|
size_t root, len;
|
|
ngx_str_t path;
|
|
ngx_int_t rc;
|
|
ngx_uint_t level;
|
|
ngx_log_t *log;
|
|
ngx_buf_t *b;
|
|
ngx_chain_t out;
|
|
ngx_open_file_info_t of;
|
|
ngx_http_core_loc_conf_t *clcf;
|
|
|
|
if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD|NGX_HTTP_POST))) {
|
|
return NGX_HTTP_NOT_ALLOWED;
|
|
}
|
|
|
|
if (r->uri.data[r->uri.len - 1] == '/') {
|
|
return NGX_DECLINED;
|
|
}
|
|
|
|
log = r->connection->log;
|
|
|
|
/*
|
|
* ngx_http_map_uri_to_path() allocates memory for terminating '\0'
|
|
* so we do not need to reserve memory for '/' for possible redirect
|
|
*/
|
|
|
|
last = ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
if (last == NULL) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
path.len = last - path.data;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0,
|
|
"http filename: \"%s\"", path.data);
|
|
|
|
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
|
ngx_memzero(&of, sizeof(ngx_open_file_info_t));
|
|
|
|
of.read_ahead = clcf->read_ahead;
|
|
of.directio = clcf->directio;
|
|
of.valid = clcf->open_file_cache_valid;
|
|
of.min_uses = clcf->open_file_cache_min_uses;
|
|
of.errors = clcf->open_file_cache_errors;
|
|
of.events = clcf->open_file_cache_events;
|
|
|
|
if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
|
|
!= NGX_OK)
|
|
{
|
|
switch (of.err) {
|
|
|
|
case 0:
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
|
case NGX_ENOENT:
|
|
case NGX_ENOTDIR:
|
|
case NGX_ENAMETOOLONG:
|
|
|
|
level = NGX_LOG_ERR;
|
|
rc = NGX_HTTP_NOT_FOUND;
|
|
break;
|
|
|
|
case NGX_EACCES:
|
|
#if (NGX_HAVE_OPENAT)
|
|
case NGX_EMLINK:
|
|
case NGX_ELOOP:
|
|
#endif
|
|
|
|
level = NGX_LOG_ERR;
|
|
rc = NGX_HTTP_FORBIDDEN;
|
|
break;
|
|
|
|
default:
|
|
|
|
level = NGX_LOG_CRIT;
|
|
rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
break;
|
|
}
|
|
|
|
if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) {
|
|
ngx_log_error(level, log, of.err,
|
|
"%s \"%s\" failed", of.failed, path.data);
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
r->root_tested = !r->error_page;
|
|
|
|
ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd);
|
|
|
|
if (of.is_dir) {
|
|
|
|
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir");
|
|
|
|
ngx_http_clear_location(r);
|
|
|
|
r->headers_out.location = ngx_palloc(r->pool, sizeof(ngx_table_elt_t));
|
|
if (r->headers_out.location == NULL) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
len = r->uri.len + 1;
|
|
|
|
if (!clcf->alias && clcf->root_lengths == NULL && r->args.len == 0) {
|
|
location = path.data + clcf->root.len;
|
|
|
|
*last = '/';
|
|
|
|
} else {
|
|
if (r->args.len) {
|
|
len += r->args.len + 1;
|
|
}
|
|
|
|
location = ngx_pnalloc(r->pool, len);
|
|
if (location == NULL) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
last = ngx_copy(location, r->uri.data, r->uri.len);
|
|
|
|
*last = '/';
|
|
|
|
if (r->args.len) {
|
|
*++last = '?';
|
|
ngx_memcpy(++last, r->args.data, r->args.len);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* we do not need to set the r->headers_out.location->hash and
|
|
* r->headers_out.location->key fields
|
|
*/
|
|
|
|
r->headers_out.location->value.len = len;
|
|
r->headers_out.location->value.data = location;
|
|
|
|
return NGX_HTTP_MOVED_PERMANENTLY;
|
|
}
|
|
|
|
#if !(NGX_WIN32) /* the not regular files are probably Unix specific */
|
|
|
|
if (!of.is_file) {
|
|
ngx_log_error(NGX_LOG_CRIT, log, 0,
|
|
"\"%s\" is not a regular file", path.data);
|
|
|
|
return NGX_HTTP_NOT_FOUND;
|
|
}
|
|
|
|
#endif
|
|
|
|
if (r->method & NGX_HTTP_POST) {
|
|
return NGX_HTTP_NOT_ALLOWED;
|
|
}
|
|
|
|
rc = ngx_http_discard_request_body(r);
|
|
|
|
if (rc != NGX_OK) {
|
|
return rc;
|
|
}
|
|
|
|
log->action = "sending response to client";
|
|
|
|
r->headers_out.status = NGX_HTTP_OK;
|
|
r->headers_out.content_length_n = of.size;
|
|
r->headers_out.last_modified_time = of.mtime;
|
|
|
|
if (ngx_http_set_etag(r) != NGX_OK) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
if (ngx_http_set_content_type(r) != NGX_OK) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
if (r != r->main && of.size == 0) {
|
|
return ngx_http_send_header(r);
|
|
}
|
|
|
|
r->allow_ranges = 1;
|
|
|
|
/* we need to allocate all before the header would be sent */
|
|
|
|
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 = 0;
|
|
b->file_last = of.size;
|
|
|
|
b->in_file = b->file_last ? 1: 0;
|
|
b->last_buf = (r == r->main) ? 1: 0;
|
|
b->last_in_chain = 1;
|
|
|
|
b->file->fd = of.fd;
|
|
b->file->name = path;
|
|
b->file->log = log;
|
|
b->file->directio = of.is_directio;
|
|
|
|
out.buf = b;
|
|
out.next = NULL;
|
|
|
|
return ngx_http_output_filter(r, &out);
|
|
}
|
|
|
|
|
|
static ngx_int_t
|
|
ngx_http_static_init(ngx_conf_t *cf)
|
|
{
|
|
ngx_http_handler_pt *h;
|
|
ngx_http_core_main_conf_t *cmcf;
|
|
|
|
cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
|
h = ngx_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers);
|
|
if (h == NULL) {
|
|
return NGX_ERROR;
|
|
}
|
|
|
|
*h = ngx_http_static_handler;
|
|
|
|
return NGX_OK;
|
|
}
|