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/* -*- Mode: c; c-basic-offset: 2 -*-
*
* raptor_libxml.c - Raptor libxml functions
*
* Copyright (C) 2000-2009, David Beckett http://www.dajobe.org/
* Copyright (C) 2000-2004, University of Bristol, UK http://www.bristol.ac.uk/
*
* This package is Free Software and part of Redland http://librdf.org/
*
* It is licensed under the following three licenses as alternatives:
* 1. GNU Lesser General Public License (LGPL) V2.1 or any newer version
* 2. GNU General Public License (GPL) V2 or any newer version
* 3. Apache License, V2.0 or any newer version
*
* You may not use this file except in compliance with at least one of
* the above three licenses.
*
* See LICENSE.html or LICENSE.txt at the top of this package for the
* complete terms and further detail along with the license texts for
* the licenses in COPYING.LIB, COPYING and LICENSE-2.0.txt respectively.
*
*
*/
#ifdef HAVE_CONFIG_H
#include <raptor_config.h>
#endif
#ifdef WIN32
#include <win32_raptor_config.h>
#endif
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
/* Raptor includes */
#include "raptor2.h"
#include "raptor_internal.h"
#ifdef RAPTOR_XML_LIBXML
/* prototypes */
static void raptor_libxml_warning(void* user_data, const char *msg, ...) RAPTOR_PRINTF_FORMAT(2, 3);
static void raptor_libxml_error_common(void* user_data, const char *msg, va_list args, const char *prefix, int is_fatal) RAPTOR_PRINTF_FORMAT(2, 0);
static void raptor_libxml_error(void *context, const char *msg, ...) RAPTOR_PRINTF_FORMAT(2, 3);
static void raptor_libxml_fatal_error(void *context, const char *msg, ...) RAPTOR_PRINTF_FORMAT(2, 3);
static void raptor_libxml_xmlStructuredError_handler_global(void *user_data, xmlErrorPtr err);
static void raptor_libxml_xmlStructuredError_handler_parsing(void *user_data, xmlErrorPtr err);
static const char* const xml_warning_prefix="XML parser warning - ";
static const char* const xml_error_prefix="XML parser error - ";
static const char* const xml_generic_error_prefix="XML error - ";
static const char* const xml_fatal_error_prefix="XML parser fatal error - ";
static const char* const xml_validation_error_prefix="XML parser validation error - ";
static const char* const xml_validation_warning_prefix="XML parser validation warning - ";
#ifdef HAVE_XMLSAX2INTERNALSUBSET
/* SAX2 - 2.6.0 or later */
#define libxml2_internalSubset xmlSAX2InternalSubset
#define libxml2_externalSubset xmlSAX2ExternalSubset
#define libxml2_isStandalone xmlSAX2IsStandalone
#define libxml2_hasInternalSubset xmlSAX2HasInternalSubset
#define libxml2_hasExternalSubset xmlSAX2HasExternalSubset
#define libxml2_resolveEntity xmlSAX2ResolveEntity
#define libxml2_getEntity xmlSAX2GetEntity
#define libxml2_getParameterEntity xmlSAX2GetParameterEntity
#define libxml2_entityDecl xmlSAX2EntityDecl
#define libxml2_unparsedEntityDecl xmlSAX2UnparsedEntityDecl
#define libxml2_startDocument xmlSAX2StartDocument
#define libxml2_endDocument xmlSAX2EndDocument
#else
/* SAX1 - before libxml2 2.6.0 */
#define libxml2_internalSubset internalSubset
#define libxml2_externalSubset externalSubset
#define libxml2_isStandalone isStandalone
#define libxml2_hasInternalSubset hasInternalSubset
#define libxml2_hasExternalSubset hasExternalSubset
#define libxml2_resolveEntity resolveEntity
#define libxml2_getEntity getEntity
#define libxml2_getParameterEntity getParameterEntity
#define libxml2_entityDecl entityDecl
#define libxml2_unparsedEntityDecl unparsedEntityDecl
#define libxml2_startDocument startDocument
#define libxml2_endDocument endDocument
#endif
static void
raptor_libxml_internalSubset(void* user_data, const xmlChar *name,
const xmlChar *ExternalID, const xmlChar *SystemID) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
libxml2_internalSubset(sax2->xc, name, ExternalID, SystemID);
}
#ifdef RAPTOR_LIBXML_XMLSAXHANDLER_EXTERNALSUBSET
static void
raptor_libxml_externalSubset(void* user_data, const xmlChar *name,
const xmlChar *ExternalID, const xmlChar *SystemID)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
libxml2_externalSubset(sax2->xc, name, ExternalID, SystemID);
}
#endif
static int
raptor_libxml_isStandalone (void* user_data)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
return libxml2_isStandalone(sax2->xc);
}
static int
raptor_libxml_hasInternalSubset (void* user_data)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
return libxml2_hasInternalSubset(sax2->xc);
}
static int
raptor_libxml_hasExternalSubset (void* user_data)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
return libxml2_hasExternalSubset(sax2->xc);
}
static xmlParserInputPtr
raptor_libxml_resolveEntity(void* user_data,
const xmlChar *publicId, const xmlChar *systemId)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
xmlParserCtxtPtr ctxt = sax2->xc;
const unsigned char *uri_string = NULL;
xmlParserInputPtr entity_input = NULL;
int load_entity = 0;
if(ctxt->input)
uri_string = RAPTOR_GOOD_CAST(const unsigned char *, ctxt->input->filename);
if(!uri_string)
uri_string = RAPTOR_GOOD_CAST(const unsigned char *, ctxt->directory);
load_entity = RAPTOR_OPTIONS_GET_NUMERIC(sax2, RAPTOR_OPTION_LOAD_EXTERNAL_ENTITIES);
if(load_entity)
load_entity = raptor_sax2_check_load_uri_string(sax2, uri_string);
if(load_entity) {
entity_input = xmlLoadExternalEntity(RAPTOR_GOOD_CAST(const char*, uri_string),
RAPTOR_GOOD_CAST(const char*, publicId),
ctxt);
} else {
RAPTOR_DEBUG4("Not loading entity URI %s by policy for publicId '%s' systemId '%s'\n", uri_string, publicId, systemId);
}
return entity_input;
}
static xmlEntityPtr
raptor_libxml_getEntity(void* user_data, const xmlChar *name)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
xmlParserCtxtPtr xc = sax2->xc;
xmlEntityPtr ret = NULL;
if(!xc)
return NULL;
if(!xc->inSubset) {
/* looks for hardcoded set of entity names - lt, gt etc. */
ret = xmlGetPredefinedEntity(name);
if(ret) {
RAPTOR_DEBUG2("Entity '%s' found in predefined set\n", name);
return ret;
}
}
/* This section uses xmlGetDocEntity which looks for entities in
* memory only, never from a file or URI
*/
if(xc->myDoc && (xc->myDoc->standalone == 1)) {
RAPTOR_DEBUG2("Entity '%s' document is standalone\n", name);
/* Document is standalone: no entities are required to interpret doc */
if(xc->inSubset == 2) {
xc->myDoc->standalone = 0;
ret = xmlGetDocEntity(xc->myDoc, name);
xc->myDoc->standalone = 1;
} else {
ret = xmlGetDocEntity(xc->myDoc, name);
if(!ret) {
xc->myDoc->standalone = 0;
ret = xmlGetDocEntity(xc->myDoc, name);
xc->myDoc->standalone = 1;
}
}
} else {
ret = xmlGetDocEntity(xc->myDoc, name);
}
if(ret && !ret->children &&
(ret->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY)) {
/* Entity is an external general parsed entity. It may be in a
* catalog file, user file or user URI
*/
int val = 0;
xmlNodePtr children;
int load_entity = 0;
load_entity = RAPTOR_OPTIONS_GET_NUMERIC(sax2, RAPTOR_OPTION_LOAD_EXTERNAL_ENTITIES);
if(load_entity)
load_entity = raptor_sax2_check_load_uri_string(sax2, ret->URI);
if(!load_entity) {
RAPTOR_DEBUG2("Not getting entity URI %s by policy\n", ret->URI);
children = xmlNewText((const xmlChar*)"");
} else {
/* Disable SAX2 handlers so that the SAX2 events do not all get
* sent to callbacks during dealing with the entity parsing.
*/
sax2->enabled = 0;
val = xmlParseCtxtExternalEntity(xc, ret->URI, ret->ExternalID, &children);
sax2->enabled = 1;
}
if(!val) {
xmlAddChildList((xmlNodePtr)ret, children);
} else {
xc->validate = 0;
return NULL;
}
ret->owner = 1;
/* Mark this entity as having been checked - never do this again */
if(!ret->checked)
ret->checked = 1;
}
return ret;
}
static xmlEntityPtr
raptor_libxml_getParameterEntity(void* user_data, const xmlChar *name) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
return libxml2_getParameterEntity(sax2->xc, name);
}
static void
raptor_libxml_entityDecl(void* user_data, const xmlChar *name, int type,
const xmlChar *publicId, const xmlChar *systemId,
xmlChar *content) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
libxml2_entityDecl(sax2->xc, name, type, publicId, systemId, content);
}
static void
raptor_libxml_unparsedEntityDecl(void* user_data, const xmlChar *name,
const xmlChar *publicId, const xmlChar *systemId,
const xmlChar *notationName) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
libxml2_unparsedEntityDecl(sax2->xc, name, publicId, systemId, notationName);
}
static void
raptor_libxml_startDocument(void* user_data) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
libxml2_startDocument(sax2->xc);
}
static void
raptor_libxml_endDocument(void* user_data) {
raptor_sax2* sax2 = (raptor_sax2*)user_data;
xmlParserCtxtPtr xc = sax2->xc;
libxml2_endDocument(sax2->xc);
if(xc->myDoc) {
xmlFreeDoc(xc->myDoc);
xc->myDoc = NULL;
}
}
static void
raptor_libxml_set_document_locator(void* user_data, xmlSAXLocatorPtr loc)
{
raptor_sax2* sax2 = (raptor_sax2*)user_data;
sax2->loc = loc;
}
void
raptor_libxml_update_document_locator(raptor_sax2* sax2,
raptor_locator* locator)
{
/* for storing error info */
xmlSAXLocatorPtr loc = sax2 ? sax2->loc : NULL;
xmlParserCtxtPtr xc= sax2 ? sax2->xc : NULL;
if(xc && xc->inSubset)
return;
if(!locator)
return;
locator->line= -1;
locator->column= -1;
if(!xc)
return;
if(loc) {
locator->line = loc->getLineNumber(xc);
/* Seems to be broken */
/* locator->column = loc->getColumnNumber(xc); */
}
}
static void
raptor_libxml_warning(void* user_data, const char *msg, ...)
{
raptor_sax2* sax2 = NULL;
va_list args;
int prefix_length = RAPTOR_BAD_CAST(int, strlen(xml_warning_prefix));
int length;
char *nmsg;
int msg_len;
/* Work around libxml2 bug - sometimes the sax2->error
* returns a ctx, sometimes the userdata
*/
if(((raptor_sax2*)user_data)->magic == RAPTOR_LIBXML_MAGIC)
sax2 = (raptor_sax2*)user_data;
else
/* user_data is not userData */
sax2 = (raptor_sax2*)((xmlParserCtxtPtr)user_data)->userData;
va_start(args, msg);
raptor_libxml_update_document_locator(sax2, sax2->locator);
msg_len = RAPTOR_BAD_CAST(int, strlen(msg));
length = prefix_length + msg_len + 1;
nmsg = RAPTOR_MALLOC(char*, length);
if(nmsg) {
memcpy(nmsg, xml_warning_prefix, prefix_length); /* Do not copy NUL */
memcpy(nmsg + prefix_length, msg, msg_len + 1); /* Copy NUL */
if(nmsg[length-2] == '\n')
nmsg[length-2]='\0';
}
raptor_log_error_varargs(sax2->world,
RAPTOR_LOG_LEVEL_WARN,
sax2->locator,
nmsg ? nmsg : msg,
args);
if(nmsg)
RAPTOR_FREE(char*, nmsg);
va_end(args);
}
static void
raptor_libxml_error_common(void* user_data, const char *msg, va_list args,
const char *prefix, int is_fatal)
{
raptor_sax2* sax2 = NULL;
int prefix_length = RAPTOR_BAD_CAST(int, strlen(prefix));
int length;
char *nmsg;
int msg_len;
raptor_world* world = NULL;
raptor_locator* locator = NULL;
if(user_data) {
/* Work around libxml2 bug - sometimes the sax2->error
* returns a user_data, sometimes the userdata
*/
if(((raptor_sax2*)user_data)->magic == RAPTOR_LIBXML_MAGIC)
sax2 = (raptor_sax2*)user_data;
else
/* user_data is not userData */
sax2 = (raptor_sax2*)((xmlParserCtxtPtr)user_data)->userData;
}
if(sax2) {
world = sax2->world;
locator = sax2->locator;
if(locator)
raptor_libxml_update_document_locator(sax2, sax2->locator);
}
msg_len = RAPTOR_BAD_CAST(int, strlen(msg));
length = prefix_length + msg_len + 1;
nmsg = RAPTOR_MALLOC(char*, length);
if(nmsg) {
memcpy(nmsg, prefix, prefix_length); /* Do not copy NUL */
memcpy(nmsg + prefix_length, msg, msg_len + 1); /* Copy NUL */
if(nmsg[length-1] == '\n')
nmsg[length-1]='\0';
}
if(is_fatal)
raptor_log_error_varargs(world,
RAPTOR_LOG_LEVEL_FATAL,
locator,
nmsg ? nmsg : msg,
args);
else
raptor_log_error_varargs(world,
RAPTOR_LOG_LEVEL_ERROR,
locator,
nmsg ? nmsg : msg,
args);
if(nmsg)
RAPTOR_FREE(char*, nmsg);
}
static void
raptor_libxml_error(void* user_data, const char *msg, ...)
{
va_list args;
va_start(args, msg);
raptor_libxml_error_common(user_data, msg, args, xml_error_prefix, 0);
va_end(args);
}
void
raptor_libxml_generic_error(void* user_data, const char *msg, ...)
{
raptor_world* world = (raptor_world*)user_data;
va_list args;
const char* prefix = xml_generic_error_prefix;
int prefix_length = RAPTOR_BAD_CAST(int, strlen(prefix));
int length;
char *nmsg;
int msg_len;
va_start(args, msg);
msg_len = RAPTOR_BAD_CAST(int, strlen(msg));
length = prefix_length + msg_len + 1;
nmsg = RAPTOR_MALLOC(char*, length);
if(nmsg) {
memcpy(nmsg, prefix, prefix_length); /* Do not copy NUL */
memcpy(nmsg + prefix_length, msg, msg_len + 1); /* Copy NUL */
if(nmsg[length-1] == '\n')
nmsg[length-1]='\0';
}
raptor_log_error_varargs(world, RAPTOR_LOG_LEVEL_ERROR,
/* locator */ NULL,
nmsg ? nmsg : msg,
args);
if(nmsg)
RAPTOR_FREE(char*, nmsg);
va_end(args);
}
static void
raptor_libxml_fatal_error(void* user_data, const char *msg, ...)
{
va_list args;
va_start(args, msg);
raptor_libxml_error_common(user_data, msg, args, xml_fatal_error_prefix, 1);
va_end(args);
}
void
raptor_libxml_validation_error(void* user_data, const char *msg, ...)
{
va_list args;
va_start(args, msg);
raptor_libxml_error_common(user_data, msg, args,
xml_validation_error_prefix, 1);
va_end(args);
}
void
raptor_libxml_validation_warning(void* user_data, const char *msg, ...)
{
va_list args;
raptor_sax2* sax2 = (raptor_sax2*)user_data;
int prefix_length = RAPTOR_GOOD_CAST(int, strlen(xml_validation_warning_prefix));
int length;
char *nmsg;
int msg_len;
va_start(args, msg);
raptor_libxml_update_document_locator(sax2, sax2->locator);
msg_len = RAPTOR_BAD_CAST(int, strlen(msg));
length = prefix_length + msg_len + 1;
nmsg = RAPTOR_MALLOC(char*, length);
if(nmsg) {
memcpy(nmsg, xml_validation_warning_prefix, prefix_length); /* Do not copy NUL */
memcpy(nmsg + prefix_length, msg, msg_len + 1); /* Copy NUL */
if(nmsg[length-2] == '\n')
nmsg[length-2]='\0';
}
raptor_log_error_varargs(sax2->world,
RAPTOR_LOG_LEVEL_WARN,
sax2->locator,
nmsg ? nmsg : msg,
args);
if(nmsg)
RAPTOR_FREE(char*, nmsg);
va_end(args);
}
/*
* Initialise libxml for a particular SAX2 setup
*/
void
raptor_libxml_sax_init(raptor_sax2* sax2)
{
xmlSAXHandler *sax = &sax2->sax;
sax->internalSubset = raptor_libxml_internalSubset;
sax->isStandalone = raptor_libxml_isStandalone;
sax->hasInternalSubset = raptor_libxml_hasInternalSubset;
sax->hasExternalSubset = raptor_libxml_hasExternalSubset;
sax->resolveEntity = raptor_libxml_resolveEntity;
sax->getEntity = raptor_libxml_getEntity;
sax->getParameterEntity = raptor_libxml_getParameterEntity;
sax->entityDecl = raptor_libxml_entityDecl;
sax->attributeDecl = NULL; /* attributeDecl */
sax->elementDecl = NULL; /* elementDecl */
sax->notationDecl = NULL; /* notationDecl */
sax->unparsedEntityDecl = raptor_libxml_unparsedEntityDecl;
sax->setDocumentLocator = raptor_libxml_set_document_locator;
sax->startDocument = raptor_libxml_startDocument;
sax->endDocument = raptor_libxml_endDocument;
sax->startElement= raptor_sax2_start_element;
sax->endElement= raptor_sax2_end_element;
sax->reference = NULL; /* reference */
sax->characters= raptor_sax2_characters;
sax->cdataBlock= raptor_sax2_cdata; /* like <![CDATA[...]> */
sax->ignorableWhitespace= raptor_sax2_cdata;
sax->processingInstruction = NULL; /* processingInstruction */
sax->comment = raptor_sax2_comment; /* comment */
sax->warning = (warningSAXFunc)raptor_libxml_warning;
sax->error = (errorSAXFunc)raptor_libxml_error;
sax->fatalError = (fatalErrorSAXFunc)raptor_libxml_fatal_error;
sax->serror = (xmlStructuredErrorFunc)raptor_libxml_xmlStructuredError_handler_parsing;
#ifdef RAPTOR_LIBXML_XMLSAXHANDLER_EXTERNALSUBSET
sax->externalSubset = raptor_libxml_externalSubset;
#endif
#ifdef RAPTOR_LIBXML_XMLSAXHANDLER_INITIALIZED
sax->initialized = 1;
#endif
}
void
raptor_libxml_free(xmlParserCtxtPtr xc) {
libxml2_endDocument(xc);
if(xc->myDoc) {
xmlFreeDoc(xc->myDoc);
xc->myDoc = NULL;
}
xmlFreeParserCtxt(xc);
}
int
raptor_libxml_init(raptor_world* world)
{
xmlInitParser();
if(world->libxml_flags & RAPTOR_WORLD_FLAG_LIBXML_STRUCTURED_ERROR_SAVE) {
world->libxml_saved_structured_error_context = xmlGenericErrorContext;
world->libxml_saved_structured_error_handler = xmlStructuredError;
/* sets xmlGenericErrorContext and xmlStructuredError */
xmlSetStructuredErrorFunc(world,
(xmlStructuredErrorFunc)raptor_libxml_xmlStructuredError_handler_global);
}
if(world->libxml_flags & RAPTOR_WORLD_FLAG_LIBXML_GENERIC_ERROR_SAVE) {
world->libxml_saved_generic_error_context = xmlGenericErrorContext;
world->libxml_saved_generic_error_handler = xmlGenericError;
/* sets xmlGenericErrorContext and xmlGenericError */
xmlSetGenericErrorFunc(world,
(xmlGenericErrorFunc)raptor_libxml_generic_error);
}
return 0;
}
void
raptor_libxml_finish(raptor_world* world)
{
if(world->libxml_flags & RAPTOR_WORLD_FLAG_LIBXML_STRUCTURED_ERROR_SAVE)
xmlSetStructuredErrorFunc(world->libxml_saved_structured_error_context,
world->libxml_saved_structured_error_handler);
if(world->libxml_flags & RAPTOR_WORLD_FLAG_LIBXML_GENERIC_ERROR_SAVE)
xmlSetGenericErrorFunc(world->libxml_saved_generic_error_context,
world->libxml_saved_generic_error_handler);
xmlCleanupParser();
}
#if LIBXML_VERSION >= 20632
#define XML_LAST_DL XML_FROM_SCHEMATRONV
#else
#if LIBXML_VERSION >= 20621
#define XML_LAST_DL XML_FROM_I18N
#else
#if LIBXML_VERSION >= 20617
#define XML_LAST_DL XML_FROM_WRITER
#else
#if LIBXML_VERSION >= 20616
#define XML_LAST_DL XML_FROM_CHECK
#else
#if LIBXML_VERSION >= 20615
#define XML_LAST_DL XML_FROM_VALID
#else
#define XML_LAST_DL XML_FROM_XSLT
#endif
#endif
#endif
#endif
#endif
/* All other symbols not specifically below noted were added during
* the period 2-10 October 2003 which is before the minimum libxml2
* version 2.6.8 release date of Mar 23 2004.
*
* When the minimum libxml2 version goes up, the #ifdefs for
* older versions can be removed.
*/
static const char* const raptor_libxml_domain_labels[XML_LAST_DL+2]= {
NULL, /* XML_FROM_NONE */
"parser", /* XML_FROM_PARSER */
"tree", /* XML_FROM_TREE */
"namespace", /* XML_FROM_NAMESPACE */
"validity", /* XML_FROM_DTD */
"HTML parser", /* XML_FROM_HTML */
"memory", /* XML_FROM_MEMORY */
"output", /* XML_FROM_OUTPUT */
"I/O" , /* XML_FROM_IO */
"FTP", /* XML_FROM_FTP */
#if LIBXML_VERSION >= 20618
/* 2005-02-13 - v2.6.18 */
"HTTP", /* XML_FROM_HTTP */
#endif
"XInclude", /* XML_FROM_XINCLUDE */
"XPath", /* XML_FROM_XPATH */
"parser", /* XML_FROM_XPOINTER */
"regexp", /* XML_FROM_REGEXP */
"Schemas datatype", /* XML_FROM_DATATYPE */
"Schemas parser", /* XML_FROM_SCHEMASP */
"Schemas validity", /* XML_FROM_SCHEMASV */
"Relax-NG parser", /* XML_FROM_RELAXNGP */
"Relax-NG validity", /* XML_FROM_RELAXNGV */
"Catalog", /* XML_FROM_CATALOG */
"C14", /* XML_FROM_C14N */
"XSLT", /* XML_FROM_XSLT */
#if LIBXML_VERSION >= 20615
/* 2004-10-07 - v2.6.15 */
"validity", /* XML_FROM_VALID */
#endif
#if LIBXML_VERSION >= 20616
/* 2004-11-04 - v2.6.16 */
"checking", /* XML_FROM_CHECK */
#endif
#if LIBXML_VERSION >= 20617
/* 2005-01-04 - v2.6.17 */
"writer", /* XML_FROM_WRITER */
#endif
#if LIBXML_VERSION >= 20621
/* 2005-08-24 - v2.6.21 */
"module", /* XML_FROM_MODULE */
"encoding", /* XML_FROM_I18N */
#endif
#if LIBXML_VERSION >= 20632
/* 2008-04-08 - v2.6.32 */
"schematronv", /* XML_FROM_SCHEMATRONV */
#endif
NULL
};
static void
raptor_libxml_xmlStructuredError_handler_common(raptor_world *world,
raptor_locator *locator,
xmlErrorPtr err)
{
raptor_stringbuffer* sb;
char *nmsg;
raptor_log_level level = RAPTOR_LOG_LEVEL_ERROR;
if(err == NULL || err->code == XML_ERR_OK || err->level == XML_ERR_NONE)
return;
/* Do not warn about things with no location */
if(err->level == XML_ERR_WARNING && !err->file)
return;
/* XML fatal errors never cause an abort */
if(err->level == XML_ERR_FATAL)
err->level = XML_ERR_ERROR;
sb = raptor_new_stringbuffer();
if(err->domain != XML_FROM_HTML)
raptor_stringbuffer_append_counted_string(sb, (const unsigned char*)"XML ",
4, 1);
if(err->domain != XML_FROM_NONE && err->domain < XML_LAST_DL) {
const unsigned char* label;
label = (const unsigned char*)raptor_libxml_domain_labels[(int)err->domain];
raptor_stringbuffer_append_string(sb, label, 1);
raptor_stringbuffer_append_counted_string(sb,
(const unsigned char*)" ", 1, 1);
}
if(err->level == XML_ERR_WARNING)
raptor_stringbuffer_append_counted_string(sb,
(const unsigned char*)"warning: ",
9, 1);
else /* XML_ERR_ERROR or XML_ERR_FATAL */
raptor_stringbuffer_append_counted_string(sb, (const unsigned char*)"error: ",
7, 1);
if(err->message) {
unsigned char* msg;
size_t len;
msg = (unsigned char*)err->message;
len= strlen((const char*)msg);
if(len && msg[len-1] == '\n')
msg[--len]='\0';
raptor_stringbuffer_append_counted_string(sb, msg, len, 1);
}
#if LIBXML_VERSION >= 20618
/* 2005-02-13 - v2.6.18 */
/* str1 has the detailed HTTP error */
if(err->domain == XML_FROM_HTTP && err->str1) {
unsigned char* msg;
size_t len;
msg = (unsigned char*)err->str1;
len= strlen((const char*)msg);
if(len && msg[len-1] == '\n')
msg[--len]='\0';
raptor_stringbuffer_append_counted_string(sb, (const unsigned char*)" - ",
3, 1);
raptor_stringbuffer_append_counted_string(sb, msg, len, 1);
}
#endif
/* When err->domain == XML_FROM_XPATH then err->int1 is
* the offset into err->str1, the line with the error
*/
if(err->domain == XML_FROM_XPATH && err->str1) {
raptor_stringbuffer_append_counted_string(sb, (const unsigned char*)" in ",
4, 1);
raptor_stringbuffer_append_string(sb, (const unsigned char*)err->str1, 1);
}
nmsg = (char*)raptor_stringbuffer_as_string(sb);
if(err->level == XML_ERR_FATAL)
level = RAPTOR_LOG_LEVEL_FATAL;
else if(err->level == XML_ERR_ERROR)
level = RAPTOR_LOG_LEVEL_ERROR;
else
level = RAPTOR_LOG_LEVEL_WARN;
raptor_log_error(world, level, locator, nmsg);
raptor_free_stringbuffer(sb);
}
/* user_data is a raptor_world* */
static void
raptor_libxml_xmlStructuredError_handler_global(void *user_data,
xmlErrorPtr err)
{
raptor_world *world = NULL;
/* user_data may point to a raptor_world* */
if(user_data) {
world = (raptor_world*)user_data;
if(world->magic != RAPTOR2_WORLD_MAGIC)
world = NULL;
}
raptor_libxml_xmlStructuredError_handler_common(world, NULL, err);
}
/* user_data may be a raptor_sax2; err->ctxt->userData may point to a
* raptor_sax2* */
static void
raptor_libxml_xmlStructuredError_handler_parsing(void *user_data,
xmlErrorPtr err)
{
raptor_sax2* sax2 = NULL;
/* user_data may point to a raptor_sax2* */
if(user_data) {
sax2 = (raptor_sax2*)user_data;
if(sax2->magic != RAPTOR_LIBXML_MAGIC)
sax2 = NULL;
}
/* err->ctxt->userData may point to a raptor_sax2* */
if(err && err->ctxt) {
xmlParserCtxtPtr ctxt = (xmlParserCtxtPtr)err->ctxt;
if(ctxt->userData) {
sax2 = (raptor_sax2*)ctxt->userData;
if(sax2->magic != RAPTOR_LIBXML_MAGIC)
sax2 = NULL;
}
}
if(sax2)
raptor_libxml_xmlStructuredError_handler_common(sax2->world, sax2->locator,
err);
else
raptor_libxml_xmlStructuredError_handler_common(NULL, NULL, err);
}
/* end if RAPTOR_XML_LIBXML */
#endif
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