Mercurial > hg > nginx-vendor-0-7
view src/http/modules/ngx_http_static_module.c @ 71:66f1f40f29d6
Added tag NGINX_0_1_35 for changeset 8ad297c88dcb
author | Igor Sysoev <http://sysoev.ru> |
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date | Tue, 07 Jun 2005 00:00:00 +0400 |
parents | b55cbf18157e |
children | da9a3b14312d |
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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_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, /* preconfiguration */ NULL, /* 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 */ 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_pool_cleanup_file_t *cln; ngx_http_core_loc_conf_t *clcf; 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; } 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); 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; } else { 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); location.len = last - location.data + 1; } ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http filename: \"%s\"", name.data); /* open file */ #if (NGX_WIN9X) 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)) { r->headers_out.location = ngx_http_add_header(&r->headers_out, ngx_http_headers_out); if (r->headers_out.location == NULL) { 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_palloc(r->pool, sizeof(ngx_table_elt_t)); if (r->headers_out.location == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } /* * we do not need to set the r->headers_out.location->hash and * r->headers_out.location->key fields */ r->headers_out.location->value = 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", 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 log->action = "sending response to client"; cln = ngx_palloc(r->pool, sizeof(ngx_pool_cleanup_file_t)); if (cln == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } cln->fd = fd; cln->name = name.data; cln->log = r->pool->log; if (ngx_pool_cleanup_add(r->pool, ngx_pool_cleanup_file, cln) == NULL) { return NGX_HTTP_INTERNAL_SERVER_ERROR; } 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 */ 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; } 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 == NULL) { b->last_buf = 1; } b->last_in_chain = 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; 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_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_array_push(&cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers); if (h == NULL) { return NGX_ERROR; } *h = ngx_http_static_handler; return NGX_OK; }