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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_DRAFT201909_SCHEMA_VALIDATOR_FACTORY_201909_HPP
#define JSONCONS_EXT_JSONSCHEMA_DRAFT201909_SCHEMA_VALIDATOR_FACTORY_201909_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/draft201909/schema_draft201909.hpp>
#include <jsoncons_ext/jsonschema/json_schema.hpp>
#if defined(JSONCONS_HAS_STD_REGEX)
#include <regex>
#endif
namespace jsoncons {
namespace jsonschema {
namespace draft201909 {
template <typename Json>
class schema_validator_factory_201909 : 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 recursive_ref_validator_type = recursive_ref_validator<Json>;
using anchor_uri_map_type = std::unordered_map<std::string,uri_wrapper>;
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> validation_factory_map_;
static const std::string& core_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/core";
return id;
}
static const std::string& applicator_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/applicator";
return id;
}
static const std::string& unevaluated_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/unevaluated";
return id;
}
static const std::string& validation_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/validation";
return id;
}
static const std::string& meta_data_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/meta-data";
return id;
}
static const std::string& format_annotation_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/format-annotation";
return id;
}
static const std::string& content_id()
{
static std::string id = "https://json-schema.org/draft/2019-09/vocab/content";
return id;
}
bool include_applicator_{true};
bool include_unevaluated_{true};
bool include_validation_{true};
bool include_format_{true};
keyword_validator_factory<Json> factory_;
public:
schema_validator_factory_201909(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,
const std::unordered_map<std::string,bool>& vocabulary) noexcept
: schema_validator_factory_base<Json>(schema_version::draft201909(),
std::move(sch), factory_factory, options, schema_store_ptr, resolve_funcs, vocabulary),
factory_(this)
{
if (!vocabulary.empty())
{
auto it = vocabulary.find(applicator_id());
if (it == vocabulary.end() || !((*it).second))
{
include_applicator_ = false;
}
it = vocabulary.find(unevaluated_id());
if (it == vocabulary.end() || !((*it).second))
{
include_unevaluated_ = false;
}
it = vocabulary.find(validation_id());
if (it == vocabulary.end() || !((*it).second))
{
include_validation_ = false;
}
it = vocabulary.find(format_annotation_id());
if (it == vocabulary.end() || !((*it).second))
{
include_format_ = false;
}
}
init();
}
schema_validator_factory_201909(const schema_validator_factory_201909&) = delete;
schema_validator_factory_201909& operator=(const schema_validator_factory_201909&) = delete;
schema_validator_factory_201909(schema_validator_factory_201909&&) = default;
schema_validator_factory_201909& operator=(schema_validator_factory_201909&&) = default;
void init()
{
validation_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);});
/*
validation_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);});
validation_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 defined(JSONCONS_HAS_STD_REGEX)
validation_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
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
validation_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);});
if (this->options().compatibility_mode())
{
validation_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);});
}
validation_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);});
validation_factory_map_.emplace("dependentRequired",
[&](const compilation_context<Json>& context, const Json& sch, const Json& parent, anchor_uri_map_type&){return factory_.make_dependent_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);
//std::cout << "make_schema_validator " << context.get_base_uri().string() << ", " << new_context.get_base_uri().string() << "\n\n";
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:
{
std::set<std::string> known_keywords;
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::unique_ptr<unevaluated_properties_validator<Json>> unevaluated_properties_val;
std::unique_ptr<unevaluated_items_validator<Json>> unevaluated_items_val;
std::set<std::string> known_keywords;
bool recursive_anchor = false;
std::map<std::string,schema_validator_ptr_type> defs;
if (this->options().compatibility_mode())
{
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));
}
known_keywords.insert("definitions");
}
}
auto it = sch.find("$defs");
if (it != sch.object_range().end())
{
for (const auto& def : (*it).value().object_range())
{
std::string sub_keys[] = { "$defs", def.key() };
defs.emplace(def.key(), make_schema_validator(context, def.value(), sub_keys, anchor_dict));
}
known_keywords.insert("$defs");
}
it = sch.find("$recursiveAnchor");
if (it != sch.object_range().end())
{
recursive_anchor = (*it).value().template as<bool>();
}
it = sch.find("default");
if (it != sch.object_range().end())
{
default_value = (*it).value();
known_keywords.insert("default");
}
it = sch.find("$ref");
if (it != sch.object_range().end()) // this schema has a reference
{
uri relative{(*it).value().template as<std::string>()};
auto resolved = context.get_base_uri().resolve(relative);
validators.push_back(this->get_or_create_reference(sch, uri_wrapper{resolved}));
}
it = sch.find("$recursiveRef");
if (it != sch.object_range().end()) // this schema has a reference
{
std::string custom_message = context.get_custom_message("$recursiveRef");
uri relative((*it).value().template as<std::string>());
auto ref = context.get_base_uri().resolve(relative);
auto orig = jsoncons::make_unique<recursive_ref_validator_type>(sch, ref.base(), custom_message);
this->unresolved_refs_.emplace_back(ref, orig.get());
validators.push_back(std::move(orig));
}
if (include_applicator_)
{
it = sch.find("propertyNames");
if (it != sch.object_range().end())
{
validators.emplace_back(factory_.make_property_names_validator(context, (*it).value(), sch, anchor_dict));
}
it = sch.find("dependentSchemas");
if (it != sch.object_range().end())
{
validators.emplace_back(factory_.make_dependent_schemas_validator(context, (*it).value(), sch, anchor_dict));
}
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)));
}
// Object validators
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));
}
}
}
if (include_validation_)
{
for (const auto& key_value : sch.object_range())
{
auto factory_it = validation_factory_map_.find(key_value.key());
if (factory_it != validation_factory_map_.end())
{
auto validator = (*factory_it).second(context, key_value.value(), sch, anchor_dict);
if (validator)
{
validators.emplace_back(std::move(validator));
}
}
}
}
if (include_format_)
{
if (this->options().require_format_validation())
{
it = sch.find("format");
if (it != sch.object_range().end())
{
validators.emplace_back(factory_.make_format_validator(context, (*it).value(), sch));
}
}
}
if (include_unevaluated_)
{
it = sch.find("unevaluatedProperties");
if (it != sch.object_range().end())
{
unevaluated_properties_val = factory_.make_unevaluated_properties_validator(context, (*it).value(), sch, anchor_dict);
}
it = sch.find("unevaluatedItems");
if (it != sch.object_range().end())
{
unevaluated_items_val = factory_.make_unevaluated_items_validator(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(unevaluated_properties_val), std::move(unevaluated_items_val),
std::move(defs), std::move(default_value), recursive_anchor);
}
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>());
if (relative.has_fragment())
{
JSONCONS_THROW(schema_error("Draft 2019-09 does not allow $id with fragment"));
}
auto resolved = parent.get_base_uri().resolve(relative);
id = resolved;
uri_wrapper new_uri{resolved};
//std::cout << "$id: " << id << ", " << new_uri.string() << "\n";
// Add it to the list if it is not already there
if (std::find(new_uris.begin(), new_uris.end(), new_uri) == new_uris.end())
{
new_uris.emplace_back(new_uri);
}
}
it = sch.find("$anchor");
if (it != sch.object_range().end())
{
auto anchor = (*it).value().template as<std::string>();
if (!this->validate_anchor(anchor))
{
JSONCONS_THROW(schema_error("Invalid $anchor " + anchor));
}
auto uri = !new_uris.empty() ? new_uris.back().uri() : jsoncons::uri{"#"};
jsoncons::uri new_uri(uri, uri_fragment_part, anchor);
uri_wrapper identifier{ new_uri };
if (std::find(new_uris.begin(), new_uris.end(), identifier) == new_uris.end())
{
new_uris.emplace_back(std::move(identifier));
}
}
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);
}
};
} // namespace draft201909
} // namespace jsonschema
} // namespace jsoncons
#endif // JSONCONS_EXT_JSONSCHEMA_DRAFT7_KEYWORD_FACTORY_HPP
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