php_schema.c

/*
  +----------------------------------------------------------------------+
  | Copyright (c) The PHP Group                                          |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available through the world-wide-web at the following url:           |
  | https://www.php.net/license/3_01.txt                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Authors: Brad Lafountain <rodif_bl@yahoo.com>                        |
  |          Shane Caraveo <shane@caraveo.com>                           |
  |          Dmitry Stogov <dmitry@php.net>                              |
  +----------------------------------------------------------------------+
*/

#include "php_soap.h"
#include "libxml/uri.h"

static int schema_simpleType(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr simpleType, sdlTypePtr cur_type);
static int schema_complexType(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr compType, sdlTypePtr cur_type);
static int schema_list(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr listType, sdlTypePtr cur_type);
static int schema_union(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr unionType, sdlTypePtr cur_type);
static int schema_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr simpCompType, sdlTypePtr cur_type);
static int schema_restriction_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr restType, sdlTypePtr cur_type, int simpleType);
static int schema_restriction_complexContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr restType, sdlTypePtr cur_type);
static int schema_extension_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type);
static int schema_extension_complexContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type);
static int schema_sequence(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr seqType, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_all(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_choice(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr choiceType, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_group(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr groupType, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_any(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_element(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr element, sdlTypePtr cur_type, sdlContentModelPtr model);
static int schema_attribute(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr attrType, sdlTypePtr cur_type, sdlCtx *ctx);
static int schema_attributeGroup(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr attrType, sdlTypePtr cur_type, sdlCtx *ctx);

static int schema_restriction_var_int(xmlNodePtr val, sdlRestrictionIntPtr *valptr);

static int schema_restriction_var_char(xmlNodePtr val, sdlRestrictionCharPtr *valptr);

static void schema_type_fixup(sdlCtx *ctx, sdlTypePtr type);

static encodePtr create_encoder(sdlPtr sdl, sdlTypePtr cur_type, const xmlChar *ns, const xmlChar *type)
{
	smart_str nscat = {0};
	encodePtr enc, enc_ptr;

	if (sdl->encoders == NULL) {
		sdl->encoders = emalloc(sizeof(HashTable));
		zend_hash_init(sdl->encoders, 0, NULL, delete_encoder, 0);
	}
	smart_str_appends(&nscat, (char*)ns);
	smart_str_appendc(&nscat, ':');
	smart_str_appends(&nscat, (char*)type);
	smart_str_0(&nscat);
	if ((enc_ptr = zend_hash_find_ptr(sdl->encoders, nscat.s)) != NULL) {
		enc = enc_ptr;
		if (enc->details.ns) {
			efree(enc->details.ns);
		}
		if (enc->details.type_str) {
			efree(enc->details.type_str);
		}
	} else {
		enc_ptr = NULL;
		enc = emalloc(sizeof(encode));
	}
	memset(enc, 0, sizeof(encode));

	enc->details.ns = estrdup((char*)ns);
	enc->details.type_str = estrdup((char*)type);
	enc->details.sdl_type = cur_type;
	enc->to_xml = sdl_guess_convert_xml;
	enc->to_zval = sdl_guess_convert_zval;

	if (enc_ptr == NULL) {
		zend_hash_update_ptr(sdl->encoders, nscat.s, enc);
	}
	smart_str_free(&nscat);
	return enc;
}

static encodePtr get_create_encoder(sdlPtr sdl, sdlTypePtr cur_type, const xmlChar *ns, const xmlChar *type)
{
	encodePtr enc = get_encoder(sdl, (char*)ns, (char*)type);
	if (enc == NULL) {
		enc = create_encoder(sdl, cur_type, ns, type);
	}
	return enc;
}

static void schema_load_file(sdlCtx *ctx, xmlAttrPtr ns, xmlChar *location, xmlAttrPtr tns, int import) {
	if (location != NULL &&
	    !zend_hash_str_exists(&ctx->docs, (char*)location, xmlStrlen(location))) {
		xmlDocPtr doc;
		xmlNodePtr schema;
		xmlAttrPtr new_tns;

		sdl_set_uri_credentials(ctx, (char*)location);
		doc = soap_xmlParseFile((char*)location);
		sdl_restore_uri_credentials(ctx);

		if (doc == NULL) {
			soap_error1(E_ERROR, "Parsing Schema: can't import schema from '%s'", location);
		}
		schema = get_node(doc->children, "schema");
		if (schema == NULL) {
			xmlFreeDoc(doc);
			soap_error1(E_ERROR, "Parsing Schema: can't import schema from '%s'", location);
		}
		new_tns = get_attribute(schema->properties, "targetNamespace");
		if (import) {
			if (ns != NULL && (new_tns == NULL || xmlStrcmp(ns->children->content, new_tns->children->content) != 0)) {
				xmlFreeDoc(doc);
				soap_error2(E_ERROR, "Parsing Schema: can't import schema from '%s', unexpected 'targetNamespace'='%s'", location, ns->children->content);
			}
			if (ns == NULL && new_tns != NULL) {
				xmlFreeDoc(doc);
				soap_error2(E_ERROR, "Parsing Schema: can't import schema from '%s', unexpected 'targetNamespace'='%s'", location, new_tns->children->content);
			}
		} else {
			new_tns = get_attribute(schema->properties, "targetNamespace");
			if (new_tns == NULL) {
				if (tns != NULL) {
					xmlSetProp(schema, BAD_CAST("targetNamespace"), tns->children->content);
				}
			} else if (tns != NULL && xmlStrcmp(tns->children->content, new_tns->children->content) != 0) {
				xmlFreeDoc(doc);
				soap_error1(E_ERROR, "Parsing Schema: can't include schema from '%s', different 'targetNamespace'", location);
			}
		}
		zend_hash_str_add_ptr(&ctx->docs, (char*)location, xmlStrlen(location), doc);
		load_schema(ctx, schema);
	}
}

/*
2.6.1 xsi:type
2.6.2 xsi:nil
2.6.3 xsi:schemaLocation, xsi:noNamespaceSchemaLocation
*/

/*
<schema
  attributeFormDefault = (qualified | unqualified) : unqualified
  blockDefault = (#all | List of (extension | restriction | substitution))  : ''
  elementFormDefault = (qualified | unqualified) : unqualified
  finalDefault = (#all | List of (extension | restriction))  : ''
  id = ID
  targetNamespace = anyURI
  version = token
  xml:lang = language
  {any attributes with non-schema namespace . . .}>
  Content: ((include | import | redefine | annotation)*, (((simpleType | complexType | group | attributeGroup) | element | attribute | notation), annotation*)*)
</schema>
*/
int load_schema(sdlCtx *ctx, xmlNodePtr schema)
{
	xmlNodePtr trav;
	xmlAttrPtr tns;

	if (!ctx->sdl->types) {
		ctx->sdl->types = emalloc(sizeof(HashTable));
		zend_hash_init(ctx->sdl->types, 0, NULL, delete_type, 0);
	}
	if (!ctx->attributes) {
		ctx->attributes = emalloc(sizeof(HashTable));
		zend_hash_init(ctx->attributes, 0, NULL, delete_attribute, 0);
	}
	if (!ctx->attributeGroups) {
		ctx->attributeGroups = emalloc(sizeof(HashTable));
		zend_hash_init(ctx->attributeGroups, 0, NULL, delete_type, 0);
	}

	tns = get_attribute(schema->properties, "targetNamespace");
	if (tns == NULL) {
		tns = xmlSetProp(schema, BAD_CAST("targetNamespace"), BAD_CAST(""));
		xmlNewNs(schema, BAD_CAST(""), NULL);
	}

	trav = schema->children;
	while (trav != NULL) {
		if (node_is_equal(trav,"include")) {
			xmlAttrPtr location;

			location = get_attribute(trav->properties, "schemaLocation");
			if (location == NULL) {
				soap_error0(E_ERROR, "Parsing Schema: include has no 'schemaLocation' attribute");
			} else {
				xmlChar *uri;
				xmlChar *base = xmlNodeGetBase(trav->doc, trav);

				if (base == NULL) {
			    uri = xmlBuildURI(location->children->content, trav->doc->URL);
				} else {
	    		uri = xmlBuildURI(location->children->content, base);
			    xmlFree(base);
				}
				schema_load_file(ctx, NULL, uri, tns, 0);
				xmlFree(uri);
			}

		} else if (node_is_equal(trav,"redefine")) {
			xmlAttrPtr location;

			location = get_attribute(trav->properties, "schemaLocation");
			if (location == NULL) {
				soap_error0(E_ERROR, "Parsing Schema: redefine has no 'schemaLocation' attribute");
			} else {
			  xmlChar *uri;
				xmlChar *base = xmlNodeGetBase(trav->doc, trav);

				if (base == NULL) {
			    uri = xmlBuildURI(location->children->content, trav->doc->URL);
				} else {
	    		uri = xmlBuildURI(location->children->content, base);
			    xmlFree(base);
				}
				schema_load_file(ctx, NULL, uri, tns, 0);
				xmlFree(uri);
				/* TODO: <redefine> support */
			}

		} else if (node_is_equal(trav,"import")) {
			xmlAttrPtr ns, location;
			xmlChar *uri = NULL;

			ns = get_attribute(trav->properties, "namespace");
			location = get_attribute(trav->properties, "schemaLocation");

			if (ns != NULL && tns != NULL && xmlStrcmp(ns->children->content, tns->children->content) == 0) {
				if (location) {
					soap_error1(E_ERROR, "Parsing Schema: can't import schema from '%s', namespace must not match the enclosing schema 'targetNamespace'", location->children->content);
				} else {
					soap_error0(E_ERROR, "Parsing Schema: can't import schema. Namespace must not match the enclosing schema 'targetNamespace'");
				}
			}
			if (location) {
				xmlChar *base = xmlNodeGetBase(trav->doc, trav);

				if (base == NULL) {
			    uri = xmlBuildURI(location->children->content, trav->doc->URL);
				} else {
	    		uri = xmlBuildURI(location->children->content, base);
			    xmlFree(base);
				}
			}
			schema_load_file(ctx, ns, uri, tns, 1);
			if (uri != NULL) {xmlFree(uri);}
		} else if (node_is_equal(trav,"annotation")) {
			/* TODO: <annotation> support */
/* annotation cleanup
			xmlNodePtr tmp = trav;
			trav = trav->next;
			xmlUnlinkNode(tmp);
			xmlFreeNode(tmp);
			continue;
*/
		} else {
			break;
		}
		trav = trav->next;
	}

	while (trav != NULL) {
		if (node_is_equal(trav,"simpleType")) {
			schema_simpleType(ctx->sdl, tns, trav, NULL);
		} else if (node_is_equal(trav,"complexType")) {
			schema_complexType(ctx->sdl, tns, trav, NULL);
		} else if (node_is_equal(trav,"group")) {
			schema_group(ctx->sdl, tns, trav, NULL, NULL);
		} else if (node_is_equal(trav,"attributeGroup")) {
			schema_attributeGroup(ctx->sdl, tns, trav, NULL, ctx);
		} else if (node_is_equal(trav,"element")) {
			schema_element(ctx->sdl, tns, trav, NULL, NULL);
		} else if (node_is_equal(trav,"attribute")) {
			schema_attribute(ctx->sdl, tns, trav, NULL, ctx);
		} else if (node_is_equal(trav,"notation")) {
			/* TODO: <notation> support */
		} else if (node_is_equal(trav,"annotation")) {
			/* TODO: <annotation> support */
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in schema", trav->name);
		}
		trav = trav->next;
	}
	return TRUE;
}

/*
<simpleType
  final = (#all | (list | union | restriction))
  id = ID
  name = NCName
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (restriction | list | union))
</simpleType>
*/
static int schema_simpleType(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr simpleType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;
	xmlAttrPtr name, ns;

	ns = get_attribute(simpleType->properties, "targetNamespace");
	if (ns == NULL) {
		ns = tns;
	}

	name = get_attribute(simpleType->properties, "name");
	if (cur_type != NULL) {
		/* Anonymous type inside <element> or <restriction> */
		sdlTypePtr newType, ptr;

		newType = emalloc(sizeof(sdlType));
		memset(newType, 0, sizeof(sdlType));
		newType->kind = XSD_TYPEKIND_SIMPLE;
		if (name != NULL) {
			newType->name = estrdup((char*)name->children->content);
			newType->namens = estrdup((char*)ns->children->content);
		} else {
			newType->name = estrdup(cur_type->name);
			newType->namens = estrdup(cur_type->namens);
		}

		ptr = zend_hash_next_index_insert_ptr(sdl->types,  newType);

		if (sdl->encoders == NULL) {
			sdl->encoders = emalloc(sizeof(HashTable));
			zend_hash_init(sdl->encoders, 0, NULL, delete_encoder, 0);
		}
		cur_type->encode = emalloc(sizeof(encode));
		memset(cur_type->encode, 0, sizeof(encode));
		cur_type->encode->details.ns = estrdup(newType->namens);
		cur_type->encode->details.type_str = estrdup(newType->name);
		cur_type->encode->details.sdl_type = ptr;
		cur_type->encode->to_xml = sdl_guess_convert_xml;
		cur_type->encode->to_zval = sdl_guess_convert_zval;
		zend_hash_next_index_insert_ptr(sdl->encoders,  cur_type->encode);

		cur_type =ptr;

	} else if (name != NULL) {
		sdlTypePtr newType, ptr;

		newType = emalloc(sizeof(sdlType));
		memset(newType, 0, sizeof(sdlType));
		newType->kind = XSD_TYPEKIND_SIMPLE;
		newType->name = estrdup((char*)name->children->content);
		newType->namens = estrdup((char*)ns->children->content);

		if (cur_type == NULL) {
			ptr = zend_hash_next_index_insert_ptr(sdl->types, newType);
		} else {
			if (cur_type->elements == NULL) {
				cur_type->elements = emalloc(sizeof(HashTable));
				zend_hash_init(cur_type->elements, 0, NULL, delete_type, 0);
			}
			ptr = zend_hash_str_update_ptr(cur_type->elements, newType->name, strlen(newType->name), newType);
		}
		cur_type = ptr;

		create_encoder(sdl, cur_type, ns->children->content, name->children->content);
	} else {
		soap_error0(E_ERROR, "Parsing Schema: simpleType has no 'name' attribute");
	}

	trav = simpleType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL) {
		if (node_is_equal(trav,"restriction")) {
			schema_restriction_simpleContent(sdl, tns, trav, cur_type, 1);
			trav = trav->next;
		} else if (node_is_equal(trav,"list")) {
			cur_type->kind = XSD_TYPEKIND_LIST;
			schema_list(sdl, tns, trav, cur_type);
			trav = trav->next;
		} else if (node_is_equal(trav,"union")) {
			cur_type->kind = XSD_TYPEKIND_UNION;
			schema_union(sdl, tns, trav, cur_type);
			trav = trav->next;
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in simpleType", trav->name);
		}
	} else {
		soap_error0(E_ERROR, "Parsing Schema: expected <restriction>, <list> or <union> in simpleType");
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in simpleType", trav->name);
	}

	return TRUE;
}

/*
<list
  id = ID
  itemType = QName
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (simpleType?))
</list>
*/
static int schema_list(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr listType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;
	xmlAttrPtr itemType;

	itemType = get_attribute(listType->properties, "itemType");
	if (itemType != NULL) {
		char *type, *ns;
		xmlNsPtr nsptr;

		parse_namespace(itemType->children->content, &type, &ns);
		nsptr = xmlSearchNs(listType->doc, listType, BAD_CAST(ns));
		if (nsptr != NULL) {
			sdlTypePtr newType;

			newType = emalloc(sizeof(sdlType));
			memset(newType, 0, sizeof(sdlType));

			newType->name = estrdup(type);
			newType->namens = estrdup((char*)nsptr->href);

			newType->encode = get_create_encoder(sdl, newType, nsptr->href, BAD_CAST(type));

			if (cur_type->elements == NULL) {
				cur_type->elements = emalloc(sizeof(HashTable));
				zend_hash_init(cur_type->elements, 0, NULL, delete_type, 0);
			}
			zend_hash_next_index_insert_ptr(cur_type->elements, newType);
		}
		if (type) {efree(type);}
		if (ns) {efree(ns);}
	}

	trav = listType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL && node_is_equal(trav,"simpleType")) {
		sdlTypePtr newType;

		if (itemType != NULL) {
			soap_error0(E_ERROR, "Parsing Schema: element has both 'itemType' attribute and subtype");
		}

		newType = emalloc(sizeof(sdlType));
		memset(newType, 0, sizeof(sdlType));

		{
			char buf[MAX_LENGTH_OF_LONG + 1];
			char *res = zend_print_long_to_buf(buf + sizeof(buf) - 1, zend_hash_num_elements(sdl->types));
			char *str = emalloc(sizeof("anonymous")-1 + (buf + sizeof(buf) - res));

			memcpy(str, "anonymous", sizeof("anonymous")-1);
			memcpy(str + sizeof("anonymous")-1, res, buf + sizeof(buf) - res);
			newType->name = str;
		}
		newType->namens = estrdup((char*)tns->children->content);

		if (cur_type->elements == NULL) {
			cur_type->elements = emalloc(sizeof(HashTable));
			zend_hash_init(cur_type->elements, 0, NULL, delete_type, 0);
		}
		zend_hash_next_index_insert_ptr(cur_type->elements, newType);

		schema_simpleType(sdl, tns, trav, newType);

		trav = trav->next;
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in list", trav->name);
	}
	return TRUE;
}

/*
<union
  id = ID
  memberTypes = List of QName
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (simpleType*))
</union>
*/
static int schema_union(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr unionType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;
	xmlAttrPtr memberTypes;

	memberTypes = get_attribute(unionType->properties, "memberTypes");
	if (memberTypes != NULL) {
		char *str, *start, *end, *next;
		char *type, *ns;
		xmlNsPtr nsptr;

		str = estrdup((char*)memberTypes->children->content);
		whiteSpace_collapse(BAD_CAST(str));
		start = str;
		while (start != NULL && *start != '\0') {
			end = strchr(start,' ');
			if (end == NULL) {
				next = NULL;
			} else {
				*end = '\0';
				next = end+1;
			}

			parse_namespace(BAD_CAST(start), &type, &ns);
			nsptr = xmlSearchNs(unionType->doc, unionType, BAD_CAST(ns));
			if (nsptr != NULL) {
				sdlTypePtr newType;

				newType = emalloc(sizeof(sdlType));
				memset(newType, 0, sizeof(sdlType));

				newType->name = estrdup(type);
				newType->namens = estrdup((char*)nsptr->href);

				newType->encode = get_create_encoder(sdl, newType, nsptr->href, BAD_CAST(type));

				if (cur_type->elements == NULL) {
					cur_type->elements = emalloc(sizeof(HashTable));
					zend_hash_init(cur_type->elements, 0, NULL, delete_type, 0);
				}
				zend_hash_next_index_insert_ptr(cur_type->elements, newType);
			}
			if (type) {efree(type);}
			if (ns) {efree(ns);}

			start = next;
		}
		efree(str);
	}

	trav = unionType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	while (trav != NULL) {
		if (node_is_equal(trav,"simpleType")) {
			sdlTypePtr newType;

			newType = emalloc(sizeof(sdlType));
			memset(newType, 0, sizeof(sdlType));

			{
				char buf[MAX_LENGTH_OF_LONG + 1];
				char *res = zend_print_long_to_buf(buf + sizeof(buf) - 1, zend_hash_num_elements(sdl->types));
				char *str = emalloc(sizeof("anonymous")-1 + (buf + sizeof(buf) - res));

				memcpy(str, "anonymous", sizeof("anonymous")-1);
				memcpy(str + sizeof("anonymous")-1, res, buf + sizeof(buf) - res);
				newType->name = str;
			}
			newType->namens = estrdup((char*)tns->children->content);

			if (cur_type->elements == NULL) {
				cur_type->elements = emalloc(sizeof(HashTable));
				zend_hash_init(cur_type->elements, 0, NULL, delete_type, 0);
			}
			zend_hash_next_index_insert_ptr(cur_type->elements, newType);

			schema_simpleType(sdl, tns, trav, newType);

		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in union", trav->name);
		}
		trav = trav->next;
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in union", trav->name);
	}
	return TRUE;
}

/*
<simpleContent
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (restriction | extension))
</simpleContent>
*/
static int schema_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr simpCompType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;

	trav = simpCompType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL) {
		if (node_is_equal(trav, "restriction")) {
			cur_type->kind = XSD_TYPEKIND_RESTRICTION;
			schema_restriction_simpleContent(sdl, tns, trav, cur_type, 0);
			trav = trav->next;
		} else if (node_is_equal(trav, "extension")) {
			cur_type->kind = XSD_TYPEKIND_EXTENSION;
			schema_extension_simpleContent(sdl, tns, trav, cur_type);
			trav = trav->next;
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in simpleContent", trav->name);
		}
	} else {
		soap_error0(E_ERROR, "Parsing Schema: expected <restriction> or <extension> in simpleContent");
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in simpleContent", trav->name);
	}

	return TRUE;
}

/*
simpleType:<restriction
  base = QName
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (simpleType?, (minExclusive | minInclusive | maxExclusive | maxInclusive | totalDigits | fractionDigits | length | minLength | maxLength | enumeration | whiteSpace | pattern)*)?)
</restriction>
simpleContent:<restriction
  base = QName
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (simpleType?, (minExclusive | minInclusive | maxExclusive | maxInclusive | totalDigits | fractionDigits | length | minLength | maxLength | enumeration | whiteSpace | pattern)*)?, ((attribute | attributeGroup)*, anyAttribute?))
</restriction>
*/
static int schema_restriction_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr restType, sdlTypePtr cur_type, int simpleType)
{
	xmlNodePtr trav;
	xmlAttrPtr base;

	base = get_attribute(restType->properties, "base");
	if (base != NULL) {
		char *type, *ns;
		xmlNsPtr nsptr;

		parse_namespace(base->children->content, &type, &ns);
		nsptr = xmlSearchNs(restType->doc, restType, BAD_CAST(ns));
		if (nsptr != NULL) {
			cur_type->encode = get_create_encoder(sdl, cur_type, nsptr->href, BAD_CAST(type));
		}
		if (type) {efree(type);}
		if (ns) {efree(ns);}
	} else if (!simpleType) {
		soap_error0(E_ERROR, "Parsing Schema: restriction has no 'base' attribute");
	}

	if (cur_type->restrictions == NULL) {
		cur_type->restrictions = emalloc(sizeof(sdlRestrictions));
		memset(cur_type->restrictions, 0, sizeof(sdlRestrictions));
	}

	trav = restType->children;
	if (trav != NULL && node_is_equal(trav, "annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL && node_is_equal(trav, "simpleType")) {
		schema_simpleType(sdl, tns, trav, cur_type);
		trav = trav->next;
	}
	while (trav != NULL) {
		if (node_is_equal(trav, "minExclusive")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->minExclusive);
		} else if (node_is_equal(trav, "minInclusive")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->minInclusive);
		} else if (node_is_equal(trav, "maxExclusive")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->maxExclusive);
		} else if (node_is_equal(trav, "maxInclusive")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->maxInclusive);
		} else if (node_is_equal(trav, "totalDigits")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->totalDigits);
		} else if (node_is_equal(trav, "fractionDigits")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->fractionDigits);
		} else if (node_is_equal(trav, "length")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->length);
		} else if (node_is_equal(trav, "minLength")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->minLength);
		} else if (node_is_equal(trav, "maxLength")) {
			schema_restriction_var_int(trav, &cur_type->restrictions->maxLength);
		} else if (node_is_equal(trav, "whiteSpace")) {
			schema_restriction_var_char(trav, &cur_type->restrictions->whiteSpace);
		} else if (node_is_equal(trav, "pattern")) {
			schema_restriction_var_char(trav, &cur_type->restrictions->pattern);
		} else if (node_is_equal(trav, "enumeration")) {
			sdlRestrictionCharPtr enumval = NULL;

			schema_restriction_var_char(trav, &enumval);
			if (cur_type->restrictions->enumeration == NULL) {
				cur_type->restrictions->enumeration = emalloc(sizeof(HashTable));
				zend_hash_init(cur_type->restrictions->enumeration, 0, NULL, delete_restriction_var_char, 0);
			}
			if (zend_hash_str_add_ptr(cur_type->restrictions->enumeration, enumval->value, strlen(enumval->value), enumval) == NULL) {
				delete_restriction_var_char_int(enumval);
			}
		} else {
			break;
		}
		trav = trav->next;
	}
	if (!simpleType) {
		while (trav != NULL) {
			if (node_is_equal(trav,"attribute")) {
				schema_attribute(sdl, tns, trav, cur_type, NULL);
			} else if (node_is_equal(trav,"attributeGroup")) {
				schema_attributeGroup(sdl, tns, trav, cur_type, NULL);
			} else if (node_is_equal(trav,"anyAttribute")) {
				/* TODO: <anyAttribute> support */
				trav = trav->next;
				break;
			} else {
				soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in restriction", trav->name);
			}
			trav = trav->next;
		}
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in restriction", trav->name);
	}

	return TRUE;
}

/*
<restriction
  base = QName
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, (group | all | choice | sequence)?, ((attribute | attributeGroup)*, anyAttribute?))
</restriction>
*/
static int schema_restriction_complexContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr restType, sdlTypePtr cur_type)
{
	xmlAttrPtr base;
	xmlNodePtr trav;

	base = get_attribute(restType->properties, "base");
	if (base != NULL) {
		char *type, *ns;
		xmlNsPtr nsptr;

		parse_namespace(base->children->content, &type, &ns);
		nsptr = xmlSearchNs(restType->doc, restType, BAD_CAST(ns));
		if (nsptr != NULL) {
			cur_type->encode = get_create_encoder(sdl, cur_type, nsptr->href, BAD_CAST(type));
		}
		if (type) {efree(type);}
		if (ns) {efree(ns);}
	} else {
		soap_error0(E_ERROR, "Parsing Schema: restriction has no 'base' attribute");
	}

	trav = restType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL) {
		if (node_is_equal(trav,"group")) {
			schema_group(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"all")) {
			schema_all(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"choice")) {
			schema_choice(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"sequence")) {
			schema_sequence(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		}
	}
	while (trav != NULL) {
		if (node_is_equal(trav,"attribute")) {
			schema_attribute(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"attributeGroup")) {
			schema_attributeGroup(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"anyAttribute")) {
			/* TODO: <anyAttribute> support */
			trav = trav->next;
			break;
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in restriction", trav->name);
		}
		trav = trav->next;
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in restriction", trav->name);
	}

	return TRUE;
}

static int schema_restriction_var_int(xmlNodePtr val, sdlRestrictionIntPtr *valptr)
{
	xmlAttrPtr fixed, value;

	if ((*valptr) == NULL) {
		(*valptr) = emalloc(sizeof(sdlRestrictionInt));
	}
	memset((*valptr), 0, sizeof(sdlRestrictionInt));

	fixed = get_attribute(val->properties, "fixed");
	(*valptr)->fixed = FALSE;
	if (fixed != NULL) {
		if (!strncmp((char*)fixed->children->content, "true", sizeof("true")) ||
			!strncmp((char*)fixed->children->content, "1", sizeof("1")))
			(*valptr)->fixed = TRUE;
	}

	value = get_attribute(val->properties, "value");
	if (value == NULL) {
		soap_error0(E_ERROR, "Parsing Schema: missing restriction value");
	}

	(*valptr)->value = atoi((char*)value->children->content);

	return TRUE;
}

static int schema_restriction_var_char(xmlNodePtr val, sdlRestrictionCharPtr *valptr)
{
	xmlAttrPtr fixed, value;

	if ((*valptr) == NULL) {
		(*valptr) = emalloc(sizeof(sdlRestrictionChar));
	}
	memset((*valptr), 0, sizeof(sdlRestrictionChar));

	fixed = get_attribute(val->properties, "fixed");
	(*valptr)->fixed = FALSE;
	if (fixed != NULL) {
		if (!strncmp((char*)fixed->children->content, "true", sizeof("true")) ||
		    !strncmp((char*)fixed->children->content, "1", sizeof("1"))) {
			(*valptr)->fixed = TRUE;
		}
	}

	value = get_attribute(val->properties, "value");
	if (value == NULL) {
		soap_error0(E_ERROR, "Parsing Schema: missing restriction value");
	}

	(*valptr)->value = estrdup((char*)value->children->content);
	return TRUE;
}

/*
From simpleContent (not supported):
<extension
  base = QName
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, ((attribute | attributeGroup)*, anyAttribute?))
</extension>
*/
static int schema_extension_simpleContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;
	xmlAttrPtr base;

	base = get_attribute(extType->properties, "base");
	if (base != NULL) {
		char *type, *ns;
		xmlNsPtr nsptr;

		parse_namespace(base->children->content, &type, &ns);
		nsptr = xmlSearchNs(extType->doc, extType, BAD_CAST(ns));
		if (nsptr != NULL) {
			cur_type->encode = get_create_encoder(sdl, cur_type, nsptr->href, BAD_CAST(type));
		}
		if (type) {efree(type);}
		if (ns) {efree(ns);}
	} else {
		soap_error0(E_ERROR, "Parsing Schema: extension has no 'base' attribute");
	}

	trav = extType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	while (trav != NULL) {
		if (node_is_equal(trav,"attribute")) {
			schema_attribute(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"attributeGroup")) {
			schema_attributeGroup(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"anyAttribute")) {
			/* TODO: <anyAttribute> support */
			trav = trav->next;
			break;
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in extension", trav->name);
		}
		trav = trav->next;
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in extension", trav->name);
	}
	return TRUE;
}

/*
From complexContent:
<extension
  base = QName
  id = ID
  {any attributes with non-schema namespace . . .}>
  Content: (annotation?, ((group | all | choice | sequence)?, ((attribute | attributeGroup)*, anyAttribute?)))
</extension>
*/
static int schema_extension_complexContent(sdlPtr sdl, xmlAttrPtr tns, xmlNodePtr extType, sdlTypePtr cur_type)
{
	xmlNodePtr trav;
	xmlAttrPtr base;

	base = get_attribute(extType->properties, "base");
	if (base != NULL) {
		char *type, *ns;
		xmlNsPtr nsptr;

		parse_namespace(base->children->content, &type, &ns);
		nsptr = xmlSearchNs(extType->doc, extType, BAD_CAST(ns));
		if (nsptr != NULL) {
			cur_type->encode = get_create_encoder(sdl, cur_type, nsptr->href, BAD_CAST(type));
		}
		if (type) {efree(type);}
		if (ns) {efree(ns);}
	} else {
		soap_error0(E_ERROR, "Parsing Schema: extension has no 'base' attribute");
	}

	trav = extType->children;
	if (trav != NULL && node_is_equal(trav,"annotation")) {
		/* TODO: <annotation> support */
		trav = trav->next;
	}
	if (trav != NULL) {
		if (node_is_equal(trav,"group")) {
			schema_group(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"all")) {
			schema_all(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"choice")) {
			schema_choice(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		} else if (node_is_equal(trav,"sequence")) {
			schema_sequence(sdl, tns, trav, cur_type, NULL);
			trav = trav->next;
		}
	}
	while (trav != NULL) {
		if (node_is_equal(trav,"attribute")) {
			schema_attribute(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"attributeGroup")) {
			schema_attributeGroup(sdl, tns, trav, cur_type, NULL);
		} else if (node_is_equal(trav,"anyAttribute")) {
			/* TODO: <anyAttribute> support */
			trav = trav->next;
			break;
		} else {
			soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in extension", trav->name);
		}
		trav = trav->next;
	}
	if (trav != NULL) {
		soap_error1(E_ERROR, "Parsing Schema: unexpected <%s> in extension", trav->name);
	}
	return TRUE;
}

void schema_min_max(xmlNodePtr node, sdlContentModelPtr model)
{
	xmlAttrPtr attr = get_attribute(node->properties, "minOccurs");

	if (attr) {
		model->min_occurs = atoi((char*)attr->children->content);
	} else {
		model->min_occurs = 1;
	}

	attr = get_attribute(node->properties, "maxOccurs");
	if (attr) {
		if (!strncmp((char*)attr->children->content, "unbounded", sizeof("unbounded"))) {
			model->max_occurs = -1;
		} else {
			model->max_occurs = atoi((char*)attr->children->content);
		}
	} else {
		model->max_occurs = 1;
	}