Mercurial > hg > nginx
view src/http/modules/ngx_http_static_module.c @ 647:95d7da23ea53 release-0.3.45
nginx-0.3.45-RELEASE import
*) Feature: the "ssl_verify_client", "ssl_verify_depth", and
"ssl_client_certificate" directives.
*) Change: the $request_method variable now returns the main request
method.
*) Change: the ° symbol codes were changed in koi-win conversion
table.
*) Feature: the euro and N symbols were added to koi-win conversion
table.
*) Bugfix: if nginx distributed the requests among several backends and
some backend failed, then requests intended for this backend was
directed to one live backend only instead of being distributed among
the rest.
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Sat, 06 May 2006 16:28:56 +0000 |
parents | 4946078f0a79 |
children | 7e24168b0853 |
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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 */ NULL, /* init master */ ngx_http_static_init, /* 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; 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_body(r); if (rc != NGX_OK && rc != NGX_AGAIN) { 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, 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); 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_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; }