#include #include void li_response_init(liResponse *resp) { resp->headers = li_http_headers_new(); resp->http_status = 0; resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY; } void li_response_reset(liResponse *resp) { li_http_headers_reset(resp->headers); resp->http_status = 0; resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY; } void li_response_clear(liResponse *resp) { li_http_headers_free(resp->headers); resp->http_status = 0; resp->transfer_encoding = LI_HTTP_TRANSFER_ENCODING_IDENTITY; } void li_response_send_headers(liConnection *con) { GString *head; liVRequest *vr = con->mainvr; if (vr->response.http_status < 100 || vr->response.http_status > 999) { VR_ERROR(vr, "wrong status: %i", vr->response.http_status); con->response_headers_sent = FALSE; li_connection_internal_error(con); return; } head = g_string_sized_new(8*1024-1); if (0 == con->out->length && con->mainvr->backend == NULL && vr->response.http_status >= 400 && vr->response.http_status < 600) { /*li_chunkqueue_append_mem(con->out, CONST_STR_LEN("Custom error\r\n"));*/ li_response_send_error_page(con); } if (con->mainvr->backend == NULL) { con->out->is_closed = TRUE; } if ((vr->response.http_status >= 100 && vr->response.http_status < 200) || vr->response.http_status == 204 || vr->response.http_status == 205 || vr->response.http_status == 304) { /* They never have a content-body/length */ li_chunkqueue_reset(con->out); con->out->is_closed = TRUE; } else if (con->out->is_closed) { g_string_printf(con->wrk->tmp_str, "%"L_GOFFSET_FORMAT, con->out->length); li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Content-Length"), GSTR_LEN(con->wrk->tmp_str)); } else if (con->keep_alive && vr->request.http_version == LI_HTTP_VERSION_1_1) { /* TODO: maybe someone set a content length header? */ if (!(vr->response.transfer_encoding & LI_HTTP_TRANSFER_ENCODING_CHUNKED)) { vr->response.transfer_encoding |= LI_HTTP_TRANSFER_ENCODING_CHUNKED; li_http_header_append(vr->response.headers, CONST_STR_LEN("Transfer-Encoding"), CONST_STR_LEN("chunked")); } } else { /* Unknown content length, no chunked encoding */ con->keep_alive = FALSE; } if (vr->request.http_method == LI_HTTP_METHOD_HEAD) { /* content-length is set, but no body */ li_chunkqueue_reset(con->out); con->out->is_closed = TRUE; } /* Status line */ if (vr->request.http_version == LI_HTTP_VERSION_1_1) { g_string_append_len(head, CONST_STR_LEN("HTTP/1.1 ")); if (!con->keep_alive) li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("close")); } else { g_string_append_len(head, CONST_STR_LEN("HTTP/1.0 ")); if (con->keep_alive) li_http_header_overwrite(vr->response.headers, CONST_STR_LEN("Connection"), CONST_STR_LEN("keep-alive")); } { guint len; gchar status_str[4]; gchar *str = li_http_status_string(vr->response.http_status, &len); li_http_status_to_str(vr->response.http_status, status_str); status_str[3] = ' '; g_string_append_len(head, status_str, 4); g_string_append_len(head, str, len); g_string_append_len(head, CONST_STR_LEN("\r\n")); } /* Append headers */ { liHttpHeader *header; GList *iter; gboolean have_date = FALSE, have_server = FALSE; for (iter = g_queue_peek_head_link(&vr->response.headers->entries); iter; iter = g_list_next(iter)) { header = (liHttpHeader*) iter->data; g_string_append_len(head, GSTR_LEN(header->data)); g_string_append_len(head, CONST_STR_LEN("\r\n")); if (!have_date && http_header_key_is(header, CONST_STR_LEN("date"))) have_date = TRUE; if (!have_server && http_header_key_is(header, CONST_STR_LEN("server"))) have_server = TRUE; } if (!have_date) { GString *d = li_worker_current_timestamp(con->wrk, LI_GMTIME, LI_TS_FORMAT_HEADER); /* HTTP/1.1 requires a Date: header */ g_string_append_len(head, CONST_STR_LEN("Date: ")); g_string_append_len(head, GSTR_LEN(d)); g_string_append_len(head, CONST_STR_LEN("\r\n")); } if (!have_server) { GString *tag = CORE_OPTION(LI_CORE_OPTION_SERVER_TAG).string; if (tag->len) { g_string_append_len(head, CONST_STR_LEN("Server: ")); g_string_append_len(head, GSTR_LEN(tag)); g_string_append_len(head, CONST_STR_LEN("\r\n")); } } } g_string_append_len(head, CONST_STR_LEN("\r\n")); li_chunkqueue_append_string(con->raw_out, head); } void li_response_send_error_page(liConnection *con) { gchar status_str[3]; guint len; gchar *str; li_chunkqueue_append_mem(con->out, CONST_STR_LEN( "\n" "\n" "\n" " \n" " " )); li_http_status_to_str(con->mainvr->response.http_status, status_str); li_chunkqueue_append_mem(con->out, status_str, 3); li_chunkqueue_append_mem(con->out, CONST_STR_LEN(" - ")); str = li_http_status_string(con->mainvr->response.http_status, &len); li_chunkqueue_append_mem(con->out, str, len); li_chunkqueue_append_mem(con->out, CONST_STR_LEN( "\n" " \n" " \n" "

" )); li_chunkqueue_append_mem(con->out, status_str, 3); li_chunkqueue_append_mem(con->out, CONST_STR_LEN(" - ")); li_chunkqueue_append_mem(con->out, str, len); li_chunkqueue_append_mem(con->out, CONST_STR_LEN( "

\n" " \n" "\n" )); }