Mercurial > hg > nginx
view src/http/modules/ngx_http_static_module.c @ 1417:b23a80f9a7b8
set current peer to use it in ngx_http_upstream_free_round_robin_peer()
author | Igor Sysoev <igor@sysoev.ru> |
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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> typedef struct { ngx_http_cache_hash_t *redirect_cache; } ngx_http_static_loc_conf_t; static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r); static void *ngx_http_static_create_loc_conf(ngx_conf_t *cf); static char *ngx_http_static_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child); static ngx_int_t ngx_http_static_init(ngx_conf_t *cf); static ngx_command_t ngx_http_static_commands[] = { #if (NGX_HTTP_CACHE) { ngx_string("redirect_cache"), NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE3, ngx_http_set_cache_slot, NGX_HTTP_LOC_CONF_OFFSET, offsetof(ngx_http_static_loc_conf_t, redirect_cache), NULL }, #endif ngx_null_command }; 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 */ ngx_http_static_create_loc_conf, /* create location configuration */ ngx_http_static_merge_loc_conf /* merge location configuration */ }; ngx_module_t ngx_http_static_module = { NGX_MODULE_V1, &ngx_http_static_module_ctx, /* module context */ ngx_http_static_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_static_handler(ngx_http_request_t *r) { u_char *last, *location; size_t root; 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; 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; } 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; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http 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; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http static fd: %d", fd); 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_dir(&fi)) { ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http dir"); 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); } 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; } clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); if (!clcf->alias && clcf->root_lengths == NULL) { location = path.data + clcf->root.len; } else { location = ngx_palloc(r->pool, r->uri.len + 1); if (location == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } last = ngx_copy(location, r->uri.data, r->uri.len); } *last = '/'; /* * 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 = r->uri.len + 1; r->headers_out.location->value.data = location; return NGX_HTTP_MOVED_PERMANENTLY; } #if !(NGX_WIN32) /* the not regular files are probably Unix specific */ if (!ngx_is_file(&fi)) { ngx_log_error(NGX_LOG_CRIT, log, ngx_errno, "\"%s\" is not a regular file", 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_NOT_FOUND; } #endif log->action = "sending response 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 = ngx_file_size(&fi); 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 (r != r->main && ngx_file_size(&fi) == 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 = ngx_file_size(&fi); b->in_file = b->file_last ? 1: 0; b->last_buf = (r == r->main) ? 1: 0; b->last_in_chain = 1; b->file->fd = fd; b->file->name = path; b->file->log = log; out.buf = b; out.next = NULL; return ngx_http_output_filter(r, &out); } static void * ngx_http_static_create_loc_conf(ngx_conf_t *cf) { ngx_http_static_loc_conf_t *conf; conf = ngx_palloc(cf->pool, sizeof(ngx_http_static_loc_conf_t)); if (conf == NULL) { return NGX_CONF_ERROR; } conf->redirect_cache = NULL; return conf; } static char * ngx_http_static_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) { ngx_http_static_loc_conf_t *prev = parent; ngx_http_static_loc_conf_t *conf = child; if (conf->redirect_cache == NULL) { conf->redirect_cache = prev->redirect_cache; } return NGX_CONF_OK; } 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; }