mirror of
https://github.com/nginx/nginx.git
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31eb8c015d
*) The pid-file names used during online upgrade was changed and now is
not required a manual rename operation. The old master process adds
the ".oldbin" suffix to its pid-file and executes a new binary file.
The new master process creates usual pid-file without the ".newbin"
suffix. If the master process exits, then old master process renames
back its pid-file with the ".oldbin" suffix to the pid-file without
suffix.
*) Change: the "worker_connections" directive, new name of the
"connections" directive; now the directive specifies maximum number
of connections, but not maximum socket descriptor number.
*) Feature: SSL supports the session cache inside one worker process.
*) Feature: the "satisfy_any" directive.
*) Change: the ngx_http_access_module and ngx_http_auth_basic_module do
not run for subrequests.
*) Feature: the "worker_rlimit_nofile" and "worker_rlimit_sigpending"
directives.
*) Bugfix: if all backend using in load-balancing failed after one
error, then nginx did not try do connect to them during 60 seconds.
*) Bugfix: in IMAP/POP3 command argument parsing.
Thanks to Rob Mueller.
*) Bugfix: errors while using SSL in IMAP/POP3 proxy.
*) Bugfix: errors while using SSI and gzipping.
*) Bugfix: the "Expires" and "Cache-Control" header lines were omitted
from the 304 responses.
Thanks to Alexandr Kukushkin.
409 lines
11 KiB
C
409 lines
11 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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typedef struct {
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ngx_http_cache_hash_t *redirect_cache;
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} ngx_http_static_loc_conf_t;
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static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r);
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static void *ngx_http_static_create_loc_conf(ngx_conf_t *cf);
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static char *ngx_http_static_merge_loc_conf(ngx_conf_t *cf,
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void *parent, void *child);
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static ngx_int_t ngx_http_static_init(ngx_cycle_t *cycle);
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static ngx_command_t ngx_http_static_commands[] = {
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#if (NGX_HTTP_CACHE)
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{ ngx_string("redirect_cache"),
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NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE3,
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ngx_http_set_cache_slot,
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NGX_HTTP_LOC_CONF_OFFSET,
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offsetof(ngx_http_static_loc_conf_t, redirect_cache),
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NULL },
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#endif
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ngx_null_command
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};
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ngx_http_module_t ngx_http_static_module_ctx = {
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NULL, /* preconfiguration */
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NULL, /* 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_http_static_create_loc_conf, /* create location configuration */
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ngx_http_static_merge_loc_conf /* merge location configuration */
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};
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ngx_module_t ngx_http_static_module = {
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NGX_MODULE_V1,
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&ngx_http_static_module_ctx, /* module context */
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ngx_http_static_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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NULL, /* init master */
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ngx_http_static_init, /* 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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static ngx_int_t
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ngx_http_static_handler(ngx_http_request_t *r)
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{
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u_char *last;
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ngx_fd_t fd;
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ngx_int_t rc;
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ngx_uint_t level;
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ngx_str_t name, location;
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ngx_err_t err;
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ngx_log_t *log;
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ngx_buf_t *b;
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ngx_chain_t out;
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ngx_file_info_t fi;
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ngx_pool_cleanup_file_t *cln;
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ngx_http_core_loc_conf_t *clcf;
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if (r->uri.data[r->uri.len - 1] == '/') {
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return NGX_DECLINED;
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}
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/* TODO: Win32 */
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if (r->zero_in_uri) {
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return NGX_DECLINED;
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}
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if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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rc = ngx_http_discard_body(r);
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if (rc != NGX_OK && rc != NGX_AGAIN) {
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return rc;
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}
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log = r->connection->log;
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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/*
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* make a file name, reserve 2 bytes for a trailing '/'
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* in a possible redirect and for the last '\0'
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*/
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if (!clcf->alias) {
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name.data = ngx_palloc(r->pool, clcf->root.len + r->uri.len + 2);
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if (name.data == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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location.data = ngx_cpymem(name.data, clcf->root.data, clcf->root.len);
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last = ngx_cpystrn(location.data, r->uri.data, r->uri.len + 1);
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name.len = last - name.data;
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location.len = last - location.data + 1;
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} else {
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name.data = ngx_palloc(r->pool, clcf->root.len + r->uri.len + 2
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- clcf->name.len);
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if (name.data == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_cpymem(name.data, clcf->root.data, clcf->root.len);
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last = ngx_cpystrn(last, r->uri.data + clcf->name.len,
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r->uri.len + 1 - clcf->name.len);
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name.len = last - name.data;
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location.data = ngx_palloc(r->pool, r->uri.len + 2);
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if (location.data == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_cpystrn(location.data, r->uri.data, r->uri.len + 1);
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location.len = last - location.data + 1;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0,
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"http filename: \"%s\"", name.data);
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/* open file */
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#if (NGX_WIN9X)
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if (ngx_win32_version < NGX_WIN_NT) {
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/*
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* there is no way to open a file or a directory in Win9X with
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* one syscall because Win9X has no FILE_FLAG_BACKUP_SEMANTICS flag
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* so we need to check its type before the opening
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*/
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if (ngx_file_info(name.data, &fi) == NGX_FILE_ERROR) {
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err = ngx_errno;
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ngx_log_error(NGX_LOG_ERR, log, err,
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ngx_file_info_n " \"%s\" failed", name.data);
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if (err == NGX_ENOENT || err == NGX_ENOTDIR) {
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return NGX_HTTP_NOT_FOUND;
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} else if (err == NGX_EACCES) {
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return NGX_HTTP_FORBIDDEN;
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} else {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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}
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if (ngx_is_dir(&fi)) {
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r->headers_out.location = ngx_http_add_header(&r->headers_out,
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ngx_http_headers_out);
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if (r->headers_out.location == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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*last++ = '/';
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*last = '\0';
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r->headers_out.location->value.len = last - location;
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r->headers_out.location->value.data = location;
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return NGX_HTTP_MOVED_PERMANENTLY;
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}
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}
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#endif
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fd = ngx_open_file(name.data, NGX_FILE_RDONLY, NGX_FILE_OPEN);
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if (fd == NGX_INVALID_FILE) {
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err = ngx_errno;
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if (err == NGX_ENOENT
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|| err == NGX_ENOTDIR
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|| err == NGX_ENAMETOOLONG)
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{
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_NOT_FOUND;
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} else if (err == NGX_EACCES) {
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_FORBIDDEN;
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} else {
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) {
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ngx_log_error(level, log, err,
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ngx_open_file_n " \"%s\" failed", name.data);
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}
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return rc;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", fd);
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if (ngx_fd_info(fd, &fi) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_CRIT, log, ngx_errno,
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ngx_fd_info_n " \"%s\" failed", name.data);
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if (ngx_close_file(fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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ngx_close_file_n " \"%s\" failed", name.data);
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}
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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if (ngx_is_dir(&fi)) {
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ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir");
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if (ngx_close_file(fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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ngx_close_file_n " \"%s\" failed", name.data);
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}
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*last++ = '/';
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*last = '\0';
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r->headers_out.location = ngx_palloc(r->pool, sizeof(ngx_table_elt_t));
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if (r->headers_out.location == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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/*
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* we do not need to set the r->headers_out.location->hash and
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* r->headers_out.location->key fields
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*/
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r->headers_out.location->value = location;
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return NGX_HTTP_MOVED_PERMANENTLY;
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}
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#if !(NGX_WIN32) /* the not regular files are probably Unix specific */
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if (!ngx_is_file(&fi)) {
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ngx_log_error(NGX_LOG_CRIT, log, ngx_errno,
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"\"%s\" is not a regular file", name.data);
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if (ngx_close_file(fd) == NGX_FILE_ERROR) {
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ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
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ngx_close_file_n " \"%s\" failed", name.data);
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}
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return NGX_HTTP_NOT_FOUND;
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}
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#endif
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log->action = "sending response to client";
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cln = ngx_palloc(r->pool, sizeof(ngx_pool_cleanup_file_t));
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if (cln == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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cln->fd = fd;
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cln->name = name.data;
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cln->log = r->pool->log;
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if (ngx_pool_cleanup_add(r->pool, ngx_pool_cleanup_file, cln) == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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r->headers_out.status = NGX_HTTP_OK;
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r->headers_out.content_length_n = ngx_file_size(&fi);
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r->headers_out.last_modified_time = ngx_file_mtime(&fi);
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if (r->headers_out.content_length_n == 0) {
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r->header_only = 1;
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}
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if (ngx_http_set_content_type(r) != NGX_OK) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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#if (NGX_SUPPRESS_WARN)
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b = NULL;
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#endif
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if (!r->header_only) {
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/* we need to allocate all before the header would be sent */
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b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t));
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if (b == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t));
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if (b->file == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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r->filter_allow_ranges = 1;
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}
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rc = ngx_http_send_header(r);
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if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) {
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return rc;
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}
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b->in_file = 1;
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if (r->main == NULL) {
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b->last_buf = 1;
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}
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b->last_in_chain = 1;
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b->file_pos = 0;
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b->file_last = ngx_file_size(&fi);
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b->file->fd = fd;
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b->file->name = name;
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b->file->log = log;
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out.buf = b;
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out.next = NULL;
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return ngx_http_output_filter(r, &out);
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}
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static void *
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ngx_http_static_create_loc_conf(ngx_conf_t *cf)
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{
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ngx_http_static_loc_conf_t *conf;
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conf = ngx_palloc(cf->pool, sizeof(ngx_http_static_loc_conf_t));
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if (conf == NULL) {
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return NGX_CONF_ERROR;
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}
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conf->redirect_cache = NULL;
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return conf;
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}
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static char *
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ngx_http_static_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
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{
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ngx_http_static_loc_conf_t *prev = parent;
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ngx_http_static_loc_conf_t *conf = child;
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if (conf->redirect_cache == NULL) {
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conf->redirect_cache = prev->redirect_cache;
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}
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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_http_static_init(ngx_cycle_t *cycle)
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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_cycle_get_module_main_conf(cycle, 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_http_static_handler;
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return NGX_OK;
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}
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