344 lines
8.3 KiB
C
344 lines
8.3 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* JSON parser wrapper
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*
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* Copyright 2024 Armin Novak <anovak@thincast.com>
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* Copyright 2024 Thincast Technologies GmbH
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <math.h>
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#include <errno.h>
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#include <winpr/file.h>
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#include <winpr/json.h>
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#include <winpr/assert.h>
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#if !defined(WITH_JSONC)
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#error "This file must only be compiled when json-c is enabled"
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#endif
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#include <json.h>
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#if JSON_C_MAJOR_VERSION == 0
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#if JSON_C_MINOR_VERSION < 14
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static struct json_object* json_object_new_null(void)
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{
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return nullptr;
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}
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#endif
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#endif
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int WINPR_JSON_version(char* buffer, size_t len)
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{
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return _snprintf(buffer, len, "json-c %s", json_c_version());
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}
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WINPR_JSON* WINPR_JSON_Parse(const char* value)
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{
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return json_tokener_parse(value);
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}
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WINPR_JSON* WINPR_JSON_ParseWithLength(const char* value, size_t buffer_length)
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{
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WINPR_ASSERT(buffer_length <= INT_MAX);
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json_tokener* tok = json_tokener_new();
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if (!tok)
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return nullptr;
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json_object* obj = json_tokener_parse_ex(tok, value, (int)buffer_length);
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json_tokener_free(tok);
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return obj;
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}
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void WINPR_JSON_Delete(WINPR_JSON* item)
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{
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json_object_put((json_object*)item);
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}
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WINPR_JSON* WINPR_JSON_GetArrayItem(const WINPR_JSON* array, size_t index)
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{
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return json_object_array_get_idx((const json_object*)array, index);
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}
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size_t WINPR_JSON_GetArraySize(const WINPR_JSON* array)
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{
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return json_object_array_length((const json_object*)array);
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}
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WINPR_JSON* WINPR_JSON_GetObjectItem(const WINPR_JSON* object, const char* string)
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{
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struct json_object_iterator it = json_object_iter_begin((const json_object*)object);
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struct json_object_iterator itEnd = json_object_iter_end((const json_object*)object);
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while (!json_object_iter_equal(&it, &itEnd))
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{
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const char* key = json_object_iter_peek_name(&it);
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if (_stricmp(key, string) == 0)
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{
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return json_object_iter_peek_value(&it);
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}
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json_object_iter_next(&it);
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}
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return nullptr;
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}
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WINPR_JSON* WINPR_JSON_GetObjectItemCaseSensitive(const WINPR_JSON* object, const char* string)
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{
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return json_object_object_get((const json_object*)object, string);
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}
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BOOL WINPR_JSON_HasObjectItem(const WINPR_JSON* object, const char* string)
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{
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return json_object_object_get_ex((const json_object*)object, string, nullptr);
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}
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const char* WINPR_JSON_GetErrorPtr(void)
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{
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return json_util_get_last_err();
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}
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const char* WINPR_JSON_GetStringValue(WINPR_JSON* item)
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{
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return json_object_get_string((json_object*)item);
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}
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double WINPR_JSON_GetNumberValue(const WINPR_JSON* item)
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{
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return json_object_get_double((const json_object*)item);
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}
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BOOL WINPR_JSON_IsInvalid(const WINPR_JSON* item)
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{
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if (WINPR_JSON_IsArray(item))
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return FALSE;
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if (WINPR_JSON_IsObject(item))
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return FALSE;
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if (WINPR_JSON_IsNull(item))
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return FALSE;
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if (WINPR_JSON_IsNumber(item))
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return FALSE;
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if (WINPR_JSON_IsBool(item))
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return FALSE;
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if (WINPR_JSON_IsString(item))
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return FALSE;
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return TRUE;
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}
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BOOL WINPR_JSON_IsFalse(const WINPR_JSON* item)
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{
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if (!json_object_is_type((const json_object*)item, json_type_boolean))
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return FALSE;
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json_bool val = json_object_get_boolean((const json_object*)item);
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return val == 0;
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}
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BOOL WINPR_JSON_IsTrue(const WINPR_JSON* item)
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{
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if (!json_object_is_type((const json_object*)item, json_type_boolean))
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return FALSE;
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json_bool val = json_object_get_boolean((const json_object*)item);
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return val != 0;
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}
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BOOL WINPR_JSON_IsBool(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_boolean);
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}
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BOOL WINPR_JSON_IsNull(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_null);
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}
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BOOL WINPR_JSON_IsNumber(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_int) ||
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json_object_is_type((const json_object*)item, json_type_double);
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}
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BOOL WINPR_JSON_IsString(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_string);
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}
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BOOL WINPR_JSON_IsArray(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_array);
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}
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BOOL WINPR_JSON_IsObject(const WINPR_JSON* item)
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{
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return json_object_is_type((const json_object*)item, json_type_object);
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}
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WINPR_JSON* WINPR_JSON_CreateNull(void)
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{
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return json_object_new_null();
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}
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WINPR_JSON* WINPR_JSON_CreateTrue(void)
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{
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return json_object_new_boolean(TRUE);
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}
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WINPR_JSON* WINPR_JSON_CreateFalse(void)
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{
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return json_object_new_boolean(FALSE);
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}
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WINPR_JSON* WINPR_JSON_CreateBool(BOOL boolean)
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{
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return json_object_new_boolean(boolean);
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}
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WINPR_JSON* WINPR_JSON_CreateNumber(double num)
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{
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return json_object_new_double(num);
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}
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WINPR_JSON* WINPR_JSON_CreateString(const char* string)
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{
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return json_object_new_string(string);
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}
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WINPR_JSON* WINPR_JSON_CreateArray(void)
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{
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return json_object_new_array();
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}
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WINPR_JSON* WINPR_JSON_CreateObject(void)
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{
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return json_object_new_object();
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}
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WINPR_JSON* WINPR_JSON_AddNullToObject(WINPR_JSON* object, const char* name)
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{
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struct json_object* obj = json_object_new_null();
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddTrueToObject(WINPR_JSON* object, const char* name)
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{
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struct json_object* obj = json_object_new_boolean(TRUE);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddFalseToObject(WINPR_JSON* object, const char* name)
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{
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struct json_object* obj = json_object_new_boolean(FALSE);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddBoolToObject(WINPR_JSON* object, const char* name, BOOL boolean)
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{
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struct json_object* obj = json_object_new_boolean(boolean);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddNumberToObject(WINPR_JSON* object, const char* name, double number)
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{
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struct json_object* obj = json_object_new_double(number);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddIntegerToObject(WINPR_JSON* object, const char* name, int64_t number)
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{
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struct json_object* obj = json_object_new_int64(number);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddStringToObject(WINPR_JSON* object, const char* name, const char* string)
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{
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struct json_object* obj = json_object_new_string(string);
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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WINPR_JSON* WINPR_JSON_AddObjectToObject(WINPR_JSON* object, const char* name)
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{
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struct json_object* obj = json_object_new_object();
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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BOOL WINPR_JSON_AddItemToArray(WINPR_JSON* array, WINPR_JSON* item)
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{
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const int rc = json_object_array_add((json_object*)array, (json_object*)item);
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if (rc != 0)
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return FALSE;
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return TRUE;
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}
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WINPR_JSON* WINPR_JSON_AddArrayToObject(WINPR_JSON* object, const char* name)
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{
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struct json_object* obj = json_object_new_array();
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if (json_object_object_add((json_object*)object, name, obj) != 0)
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{
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json_object_put(obj);
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return nullptr;
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}
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return obj;
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}
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char* WINPR_JSON_Print(WINPR_JSON* item)
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{
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const char* str = json_object_to_json_string_ext((json_object*)item, JSON_C_TO_STRING_PRETTY);
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if (!str)
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return nullptr;
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return _strdup(str);
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}
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char* WINPR_JSON_PrintUnformatted(WINPR_JSON* item)
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{
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const char* str = json_object_to_json_string_ext((json_object*)item, JSON_C_TO_STRING_PLAIN);
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if (!str)
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return nullptr;
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return _strdup(str);
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}
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