mirror of
https://github.com/nginx/nginx.git
synced 2024-12-29 02:11:21 -06:00
280 lines
7.2 KiB
C
280 lines
7.2 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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static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r);
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static ngx_int_t ngx_http_static_init(ngx_conf_t *cf);
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ngx_http_module_t ngx_http_static_module_ctx = {
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NULL, /* preconfiguration */
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ngx_http_static_init, /* 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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NULL, /* create location configuration */
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NULL /* 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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NULL, /* 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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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, *location;
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size_t root, len;
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ngx_str_t path;
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ngx_int_t rc;
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ngx_uint_t level;
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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_open_file_info_t of;
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ngx_http_core_loc_conf_t *clcf;
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if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD|NGX_HTTP_POST))) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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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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if (r->zero_in_uri) {
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return NGX_DECLINED;
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}
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log = r->connection->log;
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/*
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* ngx_http_map_uri_to_path() allocates memory for terminating '\0'
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* so we do not need to reserve memory for '/' for possible redirect
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*/
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last = ngx_http_map_uri_to_path(r, &path, &root, 0);
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if (last == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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path.len = last - path.data;
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0,
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"http filename: \"%s\"", path.data);
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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ngx_memzero(&of, sizeof(ngx_open_file_info_t));
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of.read_ahead = clcf->read_ahead;
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of.directio = clcf->directio;
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of.valid = clcf->open_file_cache_valid;
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of.min_uses = clcf->open_file_cache_min_uses;
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of.errors = clcf->open_file_cache_errors;
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of.events = clcf->open_file_cache_events;
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if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool)
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!= NGX_OK)
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{
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switch (of.err) {
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case 0:
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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case NGX_ENOENT:
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case NGX_ENOTDIR:
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case NGX_ENAMETOOLONG:
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_NOT_FOUND;
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break;
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case NGX_EACCES:
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level = NGX_LOG_ERR;
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rc = NGX_HTTP_FORBIDDEN;
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break;
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default:
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level = NGX_LOG_CRIT;
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rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
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break;
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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, of.err,
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"%s \"%s\" failed", of.failed, path.data);
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}
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return rc;
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}
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r->root_tested = !r->error_page;
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ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", of.fd);
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if (of.is_dir) {
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ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir");
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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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len = r->uri.len + 1;
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if (!clcf->alias && clcf->root_lengths == NULL && r->args.len == 0) {
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location = path.data + clcf->root.len;
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*last = '/';
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} else {
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if (r->args.len) {
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len += r->args.len + 1;
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}
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location = ngx_pnalloc(r->pool, len);
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if (location == NULL) {
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return NGX_HTTP_INTERNAL_SERVER_ERROR;
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}
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last = ngx_copy(location, r->uri.data, r->uri.len);
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*last = '/';
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if (r->args.len) {
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*++last = '?';
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ngx_memcpy(++last, r->args.data, r->args.len);
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}
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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.len = len;
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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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#if !(NGX_WIN32) /* the not regular files are probably Unix specific */
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if (!of.is_file) {
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ngx_log_error(NGX_LOG_CRIT, log, ngx_errno,
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"\"%s\" is not a regular file", path.data);
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return NGX_HTTP_NOT_FOUND;
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}
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#endif
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if (r->method & NGX_HTTP_POST) {
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return NGX_HTTP_NOT_ALLOWED;
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}
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rc = ngx_http_discard_request_body(r);
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if (rc != NGX_OK) {
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return rc;
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}
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log->action = "sending response to client";
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r->headers_out.status = NGX_HTTP_OK;
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r->headers_out.content_length_n = of.size;
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r->headers_out.last_modified_time = of.mtime;
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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 (r != r->main && of.size == 0) {
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return ngx_http_send_header(r);
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}
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r->allow_ranges = 1;
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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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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->file_pos = 0;
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b->file_last = of.size;
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b->in_file = b->file_last ? 1: 0;
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b->last_buf = (r == r->main) ? 1: 0;
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b->last_in_chain = 1;
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b->file->fd = of.fd;
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b->file->name = path;
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b->file->log = log;
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b->file->directio = of.is_directio;
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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 ngx_int_t
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ngx_http_static_init(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_http_static_handler;
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return NGX_OK;
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}
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