diff options
Diffstat (limited to 'src/http/modules/ngx_http_static_handler.c')
| -rw-r--r-- | src/http/modules/ngx_http_static_handler.c | 589 |
1 files changed, 0 insertions, 589 deletions
diff --git a/src/http/modules/ngx_http_static_handler.c b/src/http/modules/ngx_http_static_handler.c deleted file mode 100644 index 4f0f96dc0..000000000 --- a/src/http/modules/ngx_http_static_handler.c +++ /dev/null @@ -1,589 +0,0 @@ - -/* - * 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_cycle_t *cycle); - - -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, /* pre conf */ - - 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, - &ngx_http_static_module_ctx, /* module context */ - ngx_http_static_commands, /* module directives */ - NGX_HTTP_MODULE, /* module type */ - ngx_http_static_init, /* init module */ - NULL /* init process */ -}; - - -static ngx_int_t ngx_http_static_handler(ngx_http_request_t *r) -{ - u_char *last; - ngx_fd_t fd; - ngx_int_t rc; - ngx_uint_t level; - ngx_str_t name, location; - ngx_err_t err; - ngx_log_t *log; - ngx_buf_t *b; - ngx_chain_t out; - ngx_file_info_t fi; - ngx_http_cleanup_t *file_cleanup, *redirect_cleanup; - ngx_http_core_loc_conf_t *clcf; - ngx_http_static_loc_conf_t *slcf; -#if (NGX_HTTP_CACHE) - uint32_t file_crc, redirect_crc; - ngx_http_cache_t *file, *redirect; -#endif - - if (r->uri.data[r->uri.len - 1] == '/') { - return NGX_DECLINED; - } - - /* TODO: Win32 */ - if (r->zero_in_uri) { - return NGX_DECLINED; - } - - if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) { - return NGX_HTTP_NOT_ALLOWED; - } - - rc = ngx_http_discard_body(r); - - if (rc != NGX_OK && rc != NGX_AGAIN) { - return rc; - } - -#if (NGX_HTTP_CACHE) - - /* - * there is a valid cached open file, i.e by the index handler, - * and it should be already registered in r->cleanup - */ - - if (r->cache && !r->cache->expired) { - return ngx_http_send_cached(r); - } - -#endif - - log = r->connection->log; - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - /* - * make a file name, reserve 2 bytes for a trailing '/' - * in a possible redirect and for the last '\0' - */ - - if (clcf->alias) { - name.data = ngx_palloc(r->pool, clcf->root.len + r->uri.len + 2 - - clcf->name.len); - if (name.data == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - last = ngx_cpymem(name.data, clcf->root.data, clcf->root.len); - last = ngx_cpystrn(last, r->uri.data + clcf->name.len, - r->uri.len + 1 - clcf->name.len); - - name.len = last - name.data; - - location.data = ngx_palloc(r->pool, r->uri.len + 2); - if (location.data == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - last = ngx_cpystrn(location.data, r->uri.data, r->uri.len + 1); - -#if 0 - /* - * aliases usually have trailling "/", - * set it in the start of the possible redirect - */ - - if (*location.data != '/') { - location.data--; - } -#endif - - location.len = last - location.data + 1; - - } else { - name.data = ngx_palloc(r->pool, clcf->root.len + r->uri.len + 2); - if (name.data == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - location.data = ngx_cpymem(name.data, clcf->root.data, clcf->root.len); - last = ngx_cpystrn(location.data, r->uri.data, r->uri.len + 1); - - name.len = last - name.data; - location.len = last - location.data + 1; - } - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "http filename: \"%s\"", name.data); - - - /* allocate cleanups */ - - if (!(file_cleanup = ngx_push_array(&r->cleanup))) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - file_cleanup->valid = 0; - - slcf = ngx_http_get_module_loc_conf(r, ngx_http_static_module); - if (slcf->redirect_cache) { - if (!(redirect_cleanup = ngx_push_array(&r->cleanup))) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - redirect_cleanup->valid = 0; - - } else { - redirect_cleanup = NULL; - } - -#if (NGX_HTTP_CACHE) - - /* look up an open files cache */ - - if (clcf->open_files) { - file = ngx_http_cache_get(clcf->open_files, file_cleanup, - &name, &file_crc); - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "http open file cache get: %p", file); - - if (file && !file->expired) { - r->cache = file; - return ngx_http_send_cached(r); - } - - } else { - file = NULL; - } - - - /* look up an redirect cache */ - - if (slcf->redirect_cache) { - redirect = ngx_http_cache_get(slcf->redirect_cache, redirect_cleanup, - &name, &redirect_crc); - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "http redirect cache get: %p", redirect); - - if (redirect && !redirect->expired) { - - /* - * We do not copy a cached value so the cache entry is locked - * until the end of the request. In a single threaded model - * the redirected request should complete before other event - * will be processed. In a multithreaded model this locking - * should keep more popular redirects in cache. - */ - - if (!(r->headers_out.location = - ngx_http_add_header(&r->headers_out, ngx_http_headers_out))) - { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - r->headers_out.location->value = redirect->data.value; - - return NGX_HTTP_MOVED_PERMANENTLY; - } - - } else { - redirect = NULL; - } - -#endif - - /* open file */ - -#if (NGX_WIN9X) - - /* TODO: redirect cache */ - - if (ngx_win32_version < NGX_WIN_NT) { - - /* - * there is no way to open a file or a directory in Win9X with - * one syscall because Win9X has no FILE_FLAG_BACKUP_SEMANTICS flag - * so we need to check its type before the opening - */ - - if (ngx_file_info(name.data, &fi) == NGX_FILE_ERROR) { - err = ngx_errno; - ngx_log_error(NGX_LOG_ERR, log, err, - ngx_file_info_n " \"%s\" failed", name.data); - - if (err == NGX_ENOENT || err == NGX_ENOTDIR) { - return NGX_HTTP_NOT_FOUND; - - } else if (err == NGX_EACCES) { - return NGX_HTTP_FORBIDDEN; - - } else { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - } - - if (ngx_is_dir(&fi)) { - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "HTTP DIR: \"%s\"", name.data); - - if (!(r->headers_out.location = - ngx_http_add_header(&r->headers_out, ngx_http_headers_out))) - { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - *last++ = '/'; - *last = '\0'; - r->headers_out.location->value.len = last - location; - r->headers_out.location->value.data = location; - - return NGX_HTTP_MOVED_PERMANENTLY; - } - } - -#endif - - - fd = ngx_open_file(name.data, NGX_FILE_RDONLY, NGX_FILE_OPEN); - - if (fd == NGX_INVALID_FILE) { - err = ngx_errno; - - if (err == NGX_ENOENT || err == NGX_ENOTDIR) { - 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; - } - - ngx_log_error(level, log, err, - ngx_open_file_n " \"%s\" failed", name.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", name.data); - - if (ngx_close_file(fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, - ngx_close_file_n " \"%s\" failed", name.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", name.data); - } - - *last++ = '/'; - *last = '\0'; - - r->headers_out.location = ngx_list_push(&r->headers_out.headers); - if (r->headers_out.location == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - r->headers_out.location->value = location; - -#if (NGX_HTTP_CACHE) - - if (slcf->redirect_cache) { - if (redirect) { - if (location.len == redirect->data.value.len - && ngx_memcmp(redirect->data.value.data, location.data, - location.len) == 0) - { - redirect->accessed = ngx_cached_time; - redirect->updated = ngx_cached_time; - - /* - * we can unlock the cache entry because - * we have the local copy anyway - */ - - ngx_http_cache_unlock(slcf->redirect_cache, redirect, log); - redirect_cleanup->valid = 0; - - return NGX_HTTP_MOVED_PERMANENTLY; - } - } - - location.len++; - redirect = ngx_http_cache_alloc(slcf->redirect_cache, redirect, - redirect_cleanup, - &name, redirect_crc, - &location, log); - location.len--; - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "http redirect cache alloc: %p", redirect); - - if (redirect) { - redirect->fd = NGX_INVALID_FILE; - redirect->accessed = ngx_cached_time; - redirect->last_modified = 0; - redirect->updated = ngx_cached_time; - redirect->memory = 1; - ngx_http_cache_unlock(slcf->redirect_cache, redirect, log); - redirect_cleanup->valid = 0; - } - - } - -#endif - - 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", name.data); - - if (ngx_close_file(fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, - ngx_close_file_n " \"%s\" failed", name.data); - } - - return NGX_HTTP_NOT_FOUND; - } - -#endif - - -#if (NGX_HTTP_CACHE) - - if (clcf->open_files) { - -#if (NGX_USE_HTTP_FILE_CACHE_UNIQ) - - if (file && file->uniq == ngx_file_uniq(&fi)) { - if (ngx_close_file(fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, - ngx_close_file_n " \"%s\" failed", name.data); - } - file->accessed = ngx_cached_time; - file->updated = ngx_cached_time; - file->expired = 0; - r->cache = file; - - return ngx_http_send_cached(r); - - } else { - if (file) { - ngx_http_cache_unlock(clcf->open_files, file, log); - file = NULL; - } - - file = ngx_http_cache_alloc(clcf->open_files, file, - file_cleanup, - &name, file_crc, NULL, log); - if (file) { - file->uniq = ngx_file_uniq(&fi); - } - } - -#else - file = ngx_http_cache_alloc(clcf->open_files, file, - file_cleanup, - &name, file_crc, NULL, log); -#endif - - ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, - "http open file cache alloc: %p", file); - - if (file) { - file->fd = fd; - file->data.size = ngx_file_size(&fi); - file->accessed = ngx_cached_time; - file->last_modified = ngx_file_mtime(&fi); - file->updated = ngx_cached_time; - r->cache = file; - } - - return ngx_http_send_cached(r); - } - -#endif - - log->action = "sending response to client"; - - file_cleanup->data.file.fd = fd; - file_cleanup->data.file.name = name.data; - file_cleanup->valid = 1; - file_cleanup->cache = 0; - - 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 (r->headers_out.content_length_n == 0) { - r->header_only = 1; - } - - if (ngx_http_set_content_type(r) != NGX_OK) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - -#if (NGX_SUPPRESS_WARN) - b = NULL; -#endif - - if (!r->header_only) { - /* we need to allocate all before the header would be sent */ - - if (!(b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)))) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - if (!(b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)))) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - - r->filter_allow_ranges = 1; - } - - rc = ngx_http_send_header(r); - - if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { - return rc; - } - - b->in_file = 1; - - if (!r->main) { - b->last_buf = 1; - } - - b->file_pos = 0; - b->file_last = ngx_file_size(&fi); - - b->file->fd = fd; - b->file->name = name; - 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; - - if (!(conf = ngx_palloc(cf->pool, sizeof(ngx_http_static_loc_conf_t)))) { - 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_cycle_t *cycle) -{ - ngx_http_handler_pt *h; - ngx_http_core_main_conf_t *cmcf; - - cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module); - - h = ngx_push_array(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); - if (h == NULL) { - return NGX_ERROR; - } - - *h = ngx_http_static_handler; - - return NGX_OK; -} |