diff options
Diffstat (limited to 'bus/config-loader-libxml.c')
| -rw-r--r-- | bus/config-loader-libxml.c | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/bus/config-loader-libxml.c b/bus/config-loader-libxml.c deleted file mode 100644 index c73a1815..00000000 --- a/bus/config-loader-libxml.c +++ /dev/null @@ -1,324 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ -/* config-loader-libxml.c libxml2 XML loader - * - * Copyright (C) 2003 Red Hat, Inc. - * - * Licensed under the Academic Free License version 2.1 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - */ - -#include <config.h> -#include "config-parser.h" -#include <dbus/dbus-internals.h> -#include <libxml/xmlreader.h> -#include <libxml/parser.h> -#include <libxml/globals.h> -#include <libxml/xmlmemory.h> -#ifdef HAVE_ERRNO_H -#include <errno.h> -#endif -#include <string.h> - -/* About the error handling: - * - setup a "structured" error handler that catches structural - * errors and some oom errors - * - assume that a libxml function returning an error code means - * out-of-memory - */ -#define _DBUS_MAYBE_SET_OOM(e) (dbus_error_is_set(e) ? (void)0 : _DBUS_SET_OOM(e)) - - -static dbus_bool_t -xml_text_start_element (BusConfigParser *parser, - xmlTextReader *reader, - DBusError *error) -{ - const char *name; - int n_attributes; - const char **attribute_names, **attribute_values; - dbus_bool_t ret; - int i, status, is_empty; - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - ret = FALSE; - attribute_names = NULL; - attribute_values = NULL; - - name = xmlTextReaderConstName (reader); - n_attributes = xmlTextReaderAttributeCount (reader); - is_empty = xmlTextReaderIsEmptyElement (reader); - - if (name == NULL || n_attributes < 0 || is_empty == -1) - { - _DBUS_MAYBE_SET_OOM (error); - goto out; - } - - attribute_names = dbus_new0 (const char *, n_attributes + 1); - attribute_values = dbus_new0 (const char *, n_attributes + 1); - if (attribute_names == NULL || attribute_values == NULL) - { - _DBUS_SET_OOM (error); - goto out; - } - i = 0; - while ((status = xmlTextReaderMoveToNextAttribute (reader)) == 1) - { - _dbus_assert (i < n_attributes); - attribute_names[i] = xmlTextReaderConstName (reader); - attribute_values[i] = xmlTextReaderConstValue (reader); - if (attribute_names[i] == NULL || attribute_values[i] == NULL) - { - _DBUS_MAYBE_SET_OOM (error); - goto out; - } - i++; - } - if (status == -1) - { - _DBUS_MAYBE_SET_OOM (error); - goto out; - } - _dbus_assert (i == n_attributes); - - ret = bus_config_parser_start_element (parser, name, - attribute_names, attribute_values, - error); - if (ret && is_empty == 1) - ret = bus_config_parser_end_element (parser, name, error); - - out: - dbus_free (attribute_names); - dbus_free (attribute_values); - - return ret; -} - -static void xml_shut_up (void *ctx, const char *msg, ...) -{ - return; -} - -static void -xml_text_reader_error (void *arg, xmlErrorPtr xml_error) -{ - DBusError *error = arg; - -#if 0 - _dbus_verbose ("XML_ERROR level=%d, domain=%d, code=%d, msg=%s\n", - xml_error->level, xml_error->domain, - xml_error->code, xml_error->message); -#endif - - if (!dbus_error_is_set (error)) - { - if (xml_error->code == XML_ERR_NO_MEMORY) - _DBUS_SET_OOM (error); - else if (xml_error->level == XML_ERR_ERROR || - xml_error->level == XML_ERR_FATAL) - dbus_set_error (error, DBUS_ERROR_FAILED, - "Error loading config file: '%s'", - xml_error->message); - } -} - - -BusConfigParser* -bus_config_load (const DBusString *file, - dbus_bool_t is_toplevel, - const BusConfigParser *parent, - DBusError *error) - -{ - xmlTextReader *reader; - BusConfigParser *parser; - DBusString dirname, data; - DBusError tmp_error; - int ret; - - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - - parser = NULL; - reader = NULL; - - if (!_dbus_string_init (&dirname)) - { - _DBUS_SET_OOM (error); - return NULL; - } - - if (!_dbus_string_init (&data)) - { - _DBUS_SET_OOM (error); - _dbus_string_free (&dirname); - return NULL; - } - - if (is_toplevel) - { - /* xmlMemSetup only fails if one of the functions is NULL */ - xmlMemSetup (dbus_free, - dbus_malloc, - dbus_realloc, - _dbus_strdup); - xmlInitParser (); - xmlSetGenericErrorFunc (NULL, xml_shut_up); - } - - if (!_dbus_string_get_dirname (file, &dirname)) - { - _DBUS_SET_OOM (error); - goto failed; - } - - parser = bus_config_parser_new (&dirname, is_toplevel, parent); - if (parser == NULL) - { - _DBUS_SET_OOM (error); - goto failed; - } - - if (!_dbus_file_get_contents (&data, file, error)) - goto failed; - - reader = xmlReaderForMemory (_dbus_string_get_const_data (&data), - _dbus_string_get_length (&data), - NULL, NULL, 0); - if (reader == NULL) - { - _DBUS_SET_OOM (error); - goto failed; - } - - xmlTextReaderSetParserProp (reader, XML_PARSER_SUBST_ENTITIES, 1); - - dbus_error_init (&tmp_error); - xmlTextReaderSetStructuredErrorHandler (reader, xml_text_reader_error, &tmp_error); - - while ((ret = xmlTextReaderRead (reader)) == 1) - { - int type; - - if (dbus_error_is_set (&tmp_error)) - goto reader_out; - - type = xmlTextReaderNodeType (reader); - if (type == -1) - { - _DBUS_MAYBE_SET_OOM (&tmp_error); - goto reader_out; - } - - switch ((xmlReaderTypes) type) { - case XML_READER_TYPE_ELEMENT: - xml_text_start_element (parser, reader, &tmp_error); - break; - - case XML_READER_TYPE_TEXT: - case XML_READER_TYPE_CDATA: - { - DBusString content; - const char *value; - value = xmlTextReaderConstValue (reader); - if (value != NULL) - { - _dbus_string_init_const (&content, value); - bus_config_parser_content (parser, &content, &tmp_error); - } - else - _DBUS_MAYBE_SET_OOM (&tmp_error); - break; - } - - case XML_READER_TYPE_DOCUMENT_TYPE: - { - const char *name; - name = xmlTextReaderConstName (reader); - if (name != NULL) - bus_config_parser_check_doctype (parser, name, &tmp_error); - else - _DBUS_MAYBE_SET_OOM (&tmp_error); - break; - } - - case XML_READER_TYPE_END_ELEMENT: - { - const char *name; - name = xmlTextReaderConstName (reader); - if (name != NULL) - bus_config_parser_end_element (parser, name, &tmp_error); - else - _DBUS_MAYBE_SET_OOM (&tmp_error); - break; - } - - case XML_READER_TYPE_DOCUMENT: - case XML_READER_TYPE_DOCUMENT_FRAGMENT: - case XML_READER_TYPE_PROCESSING_INSTRUCTION: - case XML_READER_TYPE_COMMENT: - case XML_READER_TYPE_ENTITY: - case XML_READER_TYPE_NOTATION: - case XML_READER_TYPE_WHITESPACE: - case XML_READER_TYPE_SIGNIFICANT_WHITESPACE: - case XML_READER_TYPE_END_ENTITY: - case XML_READER_TYPE_XML_DECLARATION: - /* nothing to do, just read on */ - break; - - case XML_READER_TYPE_NONE: - case XML_READER_TYPE_ATTRIBUTE: - case XML_READER_TYPE_ENTITY_REFERENCE: - _dbus_assert_not_reached ("unexpected nodes in XML"); - } - - if (dbus_error_is_set (&tmp_error)) - goto reader_out; - } - - if (ret == -1) - _DBUS_MAYBE_SET_OOM (&tmp_error); - - reader_out: - xmlFreeTextReader (reader); - reader = NULL; - if (dbus_error_is_set (&tmp_error)) - { - dbus_move_error (&tmp_error, error); - goto failed; - } - - if (!bus_config_parser_finished (parser, error)) - goto failed; - _dbus_string_free (&dirname); - _dbus_string_free (&data); - if (is_toplevel) - xmlCleanupParser(); - _DBUS_ASSERT_ERROR_IS_CLEAR (error); - return parser; - - failed: - _DBUS_ASSERT_ERROR_IS_SET (error); - _dbus_string_free (&dirname); - _dbus_string_free (&data); - if (is_toplevel) - xmlCleanupParser(); - if (parser) - bus_config_parser_unref (parser); - _dbus_assert (reader == NULL); /* must go to reader_out first */ - return NULL; -} |