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// Copyright 2013-2025 Daniel Parker
// Distributed under the Boost license, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See https://github.com/danielaparker/jsoncons for latest version
#ifndef JSONCONS_EXT_JSONSCHEMA_DRAFT7_SCHEMA_VALIDATOR_FACTORY_7_HPP
#define JSONCONS_EXT_JSONSCHEMA_DRAFT7_SCHEMA_VALIDATOR_FACTORY_7_HPP
#include <cassert>
#include <iostream>
#include <set>
#include <string>
#include <unordered_map>
#include <jsoncons/config/compiler_support.hpp>
#include <jsoncons/utility/uri.hpp>
#include <jsoncons_ext/jsonpointer/jsonpointer.hpp>
#include <jsoncons_ext/jsonschema/common/compilation_context.hpp>
#include <jsoncons_ext/jsonschema/common/schema_validator_factory_base.hpp>
#include <jsoncons_ext/jsonschema/common/keyword_validator_factory.hpp>
#include <jsoncons_ext/jsonschema/common/schema_validator.hpp>
#include <jsoncons_ext/jsonschema/draft7/schema_draft7.hpp>
#include <jsoncons_ext/jsonschema/json_schema.hpp>
#if defined(JSONCONS_HAS_STD_REGEX)
#include <regex>
#endif
namespace jsoncons {
namespace jsonschema {
namespace draft7 {
template <typename Json>
class schema_validator_factory_7 : public schema_validator_factory_base<Json>
{
public:
using schema_store_type = typename schema_validator_factory_base<Json>::schema_store_type;
using validator_factory_factory_type = typename schema_validator_factory_base<Json>::validator_factory_factory_type;
using keyword_validator_ptr_type = typename std::unique_ptr<keyword_validator<Json>>;
using schema_validator_ptr_type = typename std::unique_ptr<schema_validator<Json>>;
using anchor_uri_map_type = std::unordered_map<std::string,uri_wrapper>;
private:
using keyword_factory_type = std::function<keyword_validator_ptr_type(const compilation_context<Json>& context,
const Json& sch, const Json& parent, anchor_uri_map_type&)>;
std::unordered_map<std::string,keyword_factory_type> keyword_factory_map_;
keyword_validator_factory<Json> factory_;
public:
schema_validator_factory_7(Json&& sch, const validator_factory_factory_type& factory_factory,
evaluation_options options, schema_store_type* schema_store_ptr,
const std::vector<resolve_uri_type<Json>>& resolve_funcs)
: schema_validator_factory_base<Json>(schema_version::draft7(), std::move(sch), factory_factory, options, schema_store_ptr, resolve_funcs),
factory_(this)
{
init();
}
schema_validator_factory_7(const schema_validator_factory_7&) = delete;
schema_validator_factory_7& operator=(const schema_validator_factory_7&) = delete;
schema_validator_factory_7(schema_validator_factory_7&&) = default;
schema_validator_factory_7& operator=(schema_validator_factory_7&&) = default;
void init()
{
keyword_factory_map_.emplace("type",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_type_validator(context, sch, parent);});
keyword_factory_map_.emplace("contentEncoding",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&)
{
return factory_.make_content_encoding_validator(context, sch, parent);}
);
keyword_factory_map_.emplace("contentMediaType",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_content_media_type_validator(context, sch, parent);});
if (this->options().require_format_validation())
{
keyword_factory_map_.emplace("format",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_format_validator(context, sch, parent);});
}
#if defined(JSONCONS_HAS_STD_REGEX)
keyword_factory_map_.emplace("pattern",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_pattern_validator(context, sch, parent);});
#endif
keyword_factory_map_.emplace("maxItems",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_max_items_validator(context, sch, parent);});
keyword_factory_map_.emplace("minItems",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_min_items_validator(context, sch, parent);});
keyword_factory_map_.emplace("maxProperties",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_max_properties_validator(context, sch, parent);});
keyword_factory_map_.emplace("minProperties",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_min_properties_validator(context, sch, parent);});
keyword_factory_map_.emplace("contains",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict)
{return factory_.make_contains_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("uniqueItems",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_unique_items_validator(context, sch, parent);});
keyword_factory_map_.emplace("maxLength",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_max_length_validator(context, sch, parent);});
keyword_factory_map_.emplace("minLength",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_min_length_validator(context, sch, parent);});
keyword_factory_map_.emplace("not",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_not_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("maximum",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_maximum_validator(context, sch, parent);});
keyword_factory_map_.emplace("exclusiveMaximum",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_exclusive_maximum_validator(context, sch, parent);});
keyword_factory_map_.emplace("minimum",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_minimum_validator(context, sch, parent);});
keyword_factory_map_.emplace("exclusiveMinimum",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_exclusive_minimum_validator(context, sch, parent);});
keyword_factory_map_.emplace("multipleOf",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_multiple_of_validator(context, sch, parent);});
keyword_factory_map_.emplace("const",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_const_validator(context, sch, parent);});
keyword_factory_map_.emplace("enum",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_enum_validator(context, sch, parent);});
keyword_factory_map_.emplace("allOf",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_all_of_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("anyOf",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_any_of_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("oneOf",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_one_of_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("dependencies",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_dependencies_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("propertyNames",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type& anchor_dict){return factory_.make_property_names_validator(context, sch, parent, anchor_dict);});
keyword_factory_map_.emplace("required",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_required_validator(context, sch, parent);});
}
schema_validator_ptr_type make_schema_validator(
const compilation_context<Json>& context, const Json& sch, jsoncons::span<const std::string> keys,
anchor_uri_map_type& anchor_dict) override
{
auto new_context = make_compilation_context(context, sch, keys);
schema_validator_ptr_type schema_validator_ptr;
switch (sch.type())
{
case json_type::bool_value:
{
schema_validator_ptr = this->make_boolean_schema(new_context, sch);
schema_validator<Json>* p = schema_validator_ptr.get();
for (const auto& uri : new_context.uris())
{
this->insert_schema(uri, p);
}
break;
}
case json_type::object_value:
{
auto it = sch.find("$ref");
if (it != sch.object_range().end()) // this schema is a reference
{
std::vector<keyword_validator_ptr_type> validators;
std::map<std::string,schema_validator_ptr_type> defs;
auto it2 = sch.find("definitions");
if (it2 != sch.object_range().end())
{
for (const auto& def : it2->value().object_range())
{
std::string sub_keys[] = { "definitions", def.key() };
defs.emplace(def.key(), make_schema_validator(context, def.value(), sub_keys, anchor_dict));
}
}
Json default_value{ jsoncons::null_type() };
uri relative((*it).value().template as<std::string>());
auto id = context.get_base_uri().resolve(relative);
validators.push_back(this->get_or_create_reference(sch, uri_wrapper{id}));
schema_validator_ptr = jsoncons::make_unique<object_schema_validator<Json>>(
new_context.get_base_uri(), context.id(),
std::move(validators), std::move(defs), std::move(default_value));
}
else
{
schema_validator_ptr = make_object_schema_validator(new_context, sch, anchor_dict);
}
schema_validator<Json>* p = schema_validator_ptr.get();
for (const auto& uri : new_context.uris())
{
this->insert_schema(uri, p);
for (const auto& item : sch.object_range())
{
if (known_keywords().find(item.key()) == known_keywords().end())
{
this->insert_unknown_keyword(uri, item.key(), item.value()); // save unknown keywords for later reference
}
}
}
break;
}
default:
JSONCONS_THROW(schema_error("invalid JSON-type for a schema for " + new_context.get_base_uri().string() + ", expected: boolean or object"));
break;
}
return schema_validator_ptr;
}
schema_validator_ptr_type make_object_schema_validator(const compilation_context<Json>& context,
const Json& sch, anchor_uri_map_type& anchor_dict)
{
jsoncons::optional<jsoncons::uri> id = context.id();
Json default_value{ jsoncons::null_type() };
std::vector<keyword_validator_ptr_type> validators;
std::map<std::string,schema_validator_ptr_type> defs;
auto it = sch.find("definitions");
if (it != sch.object_range().end())
{
for (const auto& def : (*it).value().object_range())
{
std::string sub_keys[] = { "definitions", def.key() };
defs.emplace(def.key(), make_schema_validator(context, def.value(), sub_keys, anchor_dict));
}
}
it = sch.find("default");
if (it != sch.object_range().end())
{
default_value = (*it).value();
}
for (const auto& key_value : sch.object_range())
{
auto factory_it = keyword_factory_map_.find(key_value.key());
if (factory_it != keyword_factory_map_.end())
{
auto validator = (*factory_it).second(context, key_value.value(), sch, anchor_dict);
if (validator)
{
validators.emplace_back(std::move(validator));
}
}
}
schema_validator_ptr_type if_validator;
schema_validator_ptr_type then_validator;
schema_validator_ptr_type else_validator;
it = sch.find("if");
if (it != sch.object_range().end())
{
std::string sub_keys[] = { "if" };
if_validator = make_schema_validator(context, (*it).value(), sub_keys, anchor_dict);
}
it = sch.find("then");
if (it != sch.object_range().end())
{
std::string sub_keys[] = { "then" };
then_validator = make_schema_validator(context, (*it).value(), sub_keys, anchor_dict);
}
it = sch.find("else");
if (it != sch.object_range().end())
{
std::string sub_keys[] = { "else" };
else_validator = make_schema_validator(context, (*it).value(), sub_keys, anchor_dict);
}
if (if_validator || then_validator || else_validator)
{
validators.emplace_back(jsoncons::make_unique<conditional_validator<Json>>(
sch, context.get_base_uri(), context.get_custom_message("conditional"),
std::move(if_validator), std::move(then_validator), std::move(else_validator)));
}
std::unique_ptr<properties_validator<Json>> properties;
it = sch.find("properties");
if (it != sch.object_range().end())
{
properties = factory_.make_properties_validator(context, (*it).value(), sch, anchor_dict);
}
std::unique_ptr<pattern_properties_validator<Json>> pattern_properties;
#if defined(JSONCONS_HAS_STD_REGEX)
it = sch.find("patternProperties");
if (it != sch.object_range().end())
{
pattern_properties = factory_.make_pattern_properties_validator(context, (*it).value(), sch, anchor_dict);
}
#endif
it = sch.find("additionalProperties");
if (it != sch.object_range().end())
{
validators.emplace_back(factory_.make_additional_properties_validator(context, (*it).value(), sch,
std::move(properties), std::move(pattern_properties), anchor_dict));
}
else
{
if (properties)
{
validators.emplace_back(std::move(properties));
}
#if defined(JSONCONS_HAS_STD_REGEX)
if (pattern_properties)
{
validators.emplace_back(std::move(pattern_properties));
}
#endif
}
it = sch.find("items");
if (it != sch.object_range().end())
{
if ((*it).value().type() == json_type::array_value)
{
validators.emplace_back(factory_.make_prefix_items_validator_07(context, (*it).value(), sch, anchor_dict));
}
else if ((*it).value().type() == json_type::object_value ||
(*it).value().type() == json_type::bool_value)
{
validators.emplace_back(factory_.make_items_validator("items", context, (*it).value(), sch, anchor_dict));
}
}
return jsoncons::make_unique<object_schema_validator<Json>>(context.get_base_uri(), std::move(id),
std::move(validators), std::move(defs), std::move(default_value));
}
private:
compilation_context<Json> make_compilation_context(const compilation_context<Json>& parent,
const Json& sch, jsoncons::span<const std::string> keys) const override
{
// Exclude uri's that are not plain name identifiers
std::vector<uri_wrapper> new_uris;
for (const auto& uri : parent.uris())
{
if (!uri.has_plain_name_fragment())
{
new_uris.push_back(uri);
}
}
// Append the keys for this sub-schema to the uri's
for (const auto& key : keys)
{
for (auto& uri : new_uris)
{
auto new_u = uri.append(key);
uri = uri_wrapper(new_u);
}
}
jsoncons::optional<uri> id;
std::unordered_map<std::string,std::string> custom_messages{parent.custom_messages()};
std::string custom_message;
if (sch.is_object())
{
auto it = sch.find("$id"); // If $id is found, this schema can be referenced by the id
if (it != sch.object_range().end())
{
uri relative((*it).value().template as<std::string>());
auto resolved = parent.get_base_uri().resolve(relative);
id = resolved;
//std::cout << "$id: " << id << ", " << new_uri.string() << "\n";
// Add it to the list if it is not already there
uri_wrapper new_uri{resolved};
if (std::find(new_uris.begin(), new_uris.end(), new_uri) == new_uris.end())
{
new_uris.emplace_back(new_uri);
}
}
if (this->options().enable_custom_error_message())
{
it = sch.find("errorMessage");
if (it != sch.object_range().end())
{
const auto& value = it->value();
if (value.is_object())
{
for (const auto& item : value.object_range())
{
custom_messages[item.key()] = item.value().template as<std::string>();
}
}
else if (value.is_string())
{
custom_message = value.template as<std::string>();
}
}
}
}
/*
std::cout << "Absolute URI: " << parent.get_base_uri().string() << "\n";
for (const auto& uri : new_uris)
{
std::cout << " " << uri.string() << "\n";
}
*/
return compilation_context<Json>(new_uris, id, custom_messages, custom_message);
}
private:
static const std::unordered_set<std::string>& known_keywords()
{
static std::unordered_set<std::string> keywords{
"$id",
"$ref",
"additionalItems",
"additionalProperties",
"allOf",
"anyOf",
"const",
"contains",
"contentEncoding",
"contentMediaType",
"default",
"definitions",
"dependencies",
"enum",
"exclusiveMaximum",
"exclusiveMinimum",
"if",
"then",
"else",
"items",
"maximum",
"maxItems",
"maxLength",
"maxProperties",
"minimum",
"minItems",
"minLength",
"minProperties",
"multipleOf",
"not",
"oneOf",
"pattern",
"patternProperties",
"properties",
"propertyNames",
"readOnly",
"required",
"type",
"uniqueItems",
"writeOnly"
};
return keywords;
}
};
} // namespace draft7
} // namespace jsonschema
} // namespace jsoncons
#endif // JSONCONS_EXT_JSONSCHEMA_DRAFT7_KEYWORD_FACTORY_HPP
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