diff options
Diffstat (limited to 'src/http/modules/ngx_http_static_handler.c')
| -rw-r--r-- | src/http/modules/ngx_http_static_handler.c | 206 |
1 files changed, 201 insertions, 5 deletions
diff --git a/src/http/modules/ngx_http_static_handler.c b/src/http/modules/ngx_http_static_handler.c index b8aa8d443..8b414d76d 100644 --- a/src/http/modules/ngx_http_static_handler.c +++ b/src/http/modules/ngx_http_static_handler.c @@ -4,7 +4,188 @@ #include <ngx_http.h> -int ngx_http_static_handler(ngx_http_request_t *r) +static int ngx_http_static_handler(ngx_http_request_t *r); +static int ngx_http_static_init(ngx_cycle_t *cycle); + + +static ngx_command_t ngx_http_static_commands[] = { + + ngx_null_command +}; + + + +ngx_http_module_t ngx_http_static_module_ctx = { + NULL, /* create main configuration */ + NULL, /* init main configuration */ + + NULL, /* create server configuration */ + NULL, /* merge server configuration */ + + NULL, /* create location configuration */ + NULL /* 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 child */ +}; + + +int ngx_http_static_translate_handler(ngx_http_request_t *r) +{ + char *location, *last; + ngx_err_t err; + ngx_table_elt_t *h; + ngx_http_core_loc_conf_t *clcf; + + if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) { + return NGX_HTTP_NOT_ALLOWED; + } + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (r->uri.data[r->uri.len - 1] == '/') { + if (r->path.data == NULL) { + ngx_test_null(r->path.data, + ngx_palloc(r->pool, + clcf->doc_root.len + r->uri.len), + NGX_HTTP_INTERNAL_SERVER_ERROR); + + ngx_cpystrn(ngx_cpymem(r->path.data, clcf->doc_root.data, + clcf->doc_root.len), + r->uri.data, r->uri.len + 1); + + } else { + r->path.data[r->path.len] = '\0'; + } + + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + "directory index of \"%s\" is forbidden", r->path.data); + + return NGX_HTTP_FORBIDDEN; + } + + /* "+ 2" is for trailing '/' in redirect and '\0' */ + ngx_test_null(r->file.name.data, + ngx_palloc(r->pool, clcf->doc_root.len + r->uri.len + 2), + NGX_HTTP_INTERNAL_SERVER_ERROR); + + location = ngx_cpymem(r->file.name.data, clcf->doc_root.data, + clcf->doc_root.len), + + last = ngx_cpystrn(location, r->uri.data, r->uri.len + 1); + +ngx_log_debug(r->connection->log, "HTTP filename: '%s'" _ r->file.name.data); + +#if (WIN9X) + + /* + * There is no way to open a file or a directory in Win9X with + * one syscall: Win9X has no FILE_FLAG_BACKUP_SEMANTICS flag. + * so we need to check its type before the opening + */ + + r->file.info.dwFileAttributes = GetFileAttributes(r->file.name.data); + if (r->file.info.dwFileAttributes == INVALID_FILE_ATTRIBUTES) { + err = ngx_errno; + ngx_log_error(NGX_LOG_ERR, r->connection->log, err, + ngx_file_type_n " \"%s\" failed", r->file.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; + } + } + +#else + + if (r->file.fd == NGX_INVALID_FILE) { + r->file.fd = ngx_open_file(r->file.name.data, + NGX_FILE_RDONLY, NGX_FILE_OPEN); + } + + if (r->file.fd == NGX_INVALID_FILE) { + err = ngx_errno; + ngx_log_error(NGX_LOG_ERR, r->connection->log, ngx_errno, + ngx_open_file_n " \"%s\" failed", r->file.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; + } + } + +ngx_log_debug(r->connection->log, "FILE: %d" _ r->file.fd); + + if (!r->file.info_valid) { + if (ngx_stat_fd(r->file.fd, &r->file.info) == NGX_FILE_ERROR) { + ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno, + ngx_stat_fd_n " \"%s\" failed", r->file.name.data); + + if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, + ngx_close_file_n " \"%s\" failed", + r->file.name.data); + } + + r->file.fd = NGX_INVALID_FILE; + + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + + r->file.info_valid = 1; + } +#endif + + if (ngx_is_dir(r->file.info)) { +ngx_log_debug(r->connection->log, "HTTP DIR: '%s'" _ r->file.name.data); + +#if !(WIN9X) + if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, + ngx_close_file_n " \"%s\" failed", r->file.name.data); + } + + r->file.fd = NGX_INVALID_FILE; +#endif + + ngx_test_null(h, ngx_push_table(r->headers_out.headers), + NGX_HTTP_INTERNAL_SERVER_ERROR); + + *last++ = '/'; + *last = '\0'; + h->key.len = 8; + h->key.data = "Location" ; + h->value.len = last - location; + h->value.data = location; + r->headers_out.location = h; + + return NGX_HTTP_MOVED_PERMANENTLY; + } + + r->content_handler = ngx_http_static_handler; + + return NGX_OK; +} + + +static int ngx_http_static_handler(ngx_http_request_t *r) { int rc, key, i; ngx_log_e level; @@ -20,10 +201,6 @@ int ngx_http_static_handler(ngx_http_request_t *r) return rc; } - if (r->method != NGX_HTTP_GET && r->method != NGX_HTTP_HEAD) { - return NGX_HTTP_NOT_ALLOWED; - } - ctx = r->connection->log->data; ctx->action = "sending response"; @@ -142,3 +319,22 @@ int ngx_http_static_handler(ngx_http_request_t *r) return ngx_http_output_filter(r, h); } + + +static int ngx_http_static_init(ngx_cycle_t *cycle) +{ + ngx_http_handler_pt *h; + ngx_http_conf_ctx_t *ctx; + ngx_http_core_main_conf_t *cmcf; + + ctx = (ngx_http_conf_ctx_t *) cycle->conf_ctx[ngx_http_module.index]; + cmcf = ctx->main_conf[ngx_http_core_module.ctx_index]; + + ngx_test_null(h, ngx_push_array( + &cmcf->phases[NGX_HTTP_TRANSLATE_PHASE].handlers), + NGX_ERROR); + *h = ngx_http_static_translate_handler; + + return NGX_OK; +} + |