[457] | 1 | // Copyright (c) Microsoft. All rights reserved.
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| 2 | // Licensed under the MIT license. See LICENSE file in the project root for full license information.
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| 3 |
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| 4 | #include "azure_c_shared_utility/gballoc.h"
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| 5 |
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| 6 | #include "jsonencoder.h"
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| 7 | #include "azure_c_shared_utility/crt_abstractions.h"
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| 8 | #include "azure_c_shared_utility/xlogging.h"
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| 9 | #include "azure_c_shared_utility/strings.h"
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| 10 |
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| 11 | #ifdef _MSC_VER
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| 12 | #pragma warning(disable: 4701) /* potentially uninitialized local variable 'result' used */ /* the scanner cannot track variable "i" and link it to childCount*/
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| 13 | #endif
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| 14 |
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| 15 | MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(JSON_ENCODER_TOSTRING_RESULT, JSON_ENCODER_TOSTRING_RESULT_VALUES);
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| 16 | MU_DEFINE_ENUM_STRINGS_WITHOUT_INVALID(JSON_ENCODER_RESULT, JSON_ENCODER_RESULT_VALUES);
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| 17 |
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| 18 | JSON_ENCODER_RESULT JSONEncoder_EncodeTree(MULTITREE_HANDLE treeHandle, STRING_HANDLE destination, JSON_ENCODER_TOSTRING_FUNC toStringFunc)
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| 19 | {
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| 20 | JSON_ENCODER_RESULT result;
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| 21 |
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| 22 | size_t childCount;
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| 23 |
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| 24 | /* Codes_SRS_JSON_ENCODER_99_032:[If any of the arguments passed to JSONEncoder_EncodeTree is NULL then JSON_ENCODER_INVALID_ARG shall be returned.] */
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| 25 | if ((treeHandle == NULL) ||
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| 26 | (destination == NULL) ||
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| 27 | (toStringFunc == NULL))
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| 28 | {
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| 29 | result = JSON_ENCODER_INVALID_ARG;
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| 30 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 31 | }
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| 32 | /*Codes_SRS_JSON_ENCODER_99_035:[ JSON encoder shall inquire the number of child nodes (further called childCount) of the current node (given by parameter treeHandle.]*/
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| 33 | else if (MultiTree_GetChildCount(treeHandle, &childCount) != MULTITREE_OK)
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| 34 | {
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| 35 | result = JSON_ENCODER_MULTITREE_ERROR;
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| 36 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 37 | }
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| 38 | else
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| 39 | {
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| 40 | size_t i;
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| 41 | /*Codes_SRS_JSON_ENCODER_99_036:[ The string "{" shall be added to the output;]*/
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| 42 | if (STRING_concat(destination, "{") != 0)
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| 43 | {
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| 44 | result = JSON_ENCODER_ERROR;
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| 45 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 46 | }
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| 47 | else
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| 48 | {
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| 49 | result = JSON_ENCODER_OK;
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| 50 | for (i = 0; (i < childCount) && (result == JSON_ENCODER_OK); i++)
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| 51 | {
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| 52 | MULTITREE_HANDLE childTreeHandle;
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| 53 |
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| 54 | if ((i > 0) &&
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| 55 | (STRING_concat(destination, ", ") != 0))
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| 56 | {
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| 57 | result = JSON_ENCODER_ERROR;
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| 58 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 59 | }
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| 60 | else if (STRING_concat(destination, "\"") != 0)
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| 61 | {
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| 62 | result = JSON_ENCODER_ERROR;
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| 63 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 64 | }
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| 65 | else
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| 66 | {
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| 67 | STRING_HANDLE name = STRING_new();
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| 68 | if (name == NULL)
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| 69 | {
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| 70 | result = JSON_ENCODER_ERROR;
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| 71 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 72 | }
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| 73 | else
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| 74 | {
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| 75 | if (MultiTree_GetChild(treeHandle, i, &childTreeHandle) != MULTITREE_OK)
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| 76 | {
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| 77 | result = JSON_ENCODER_MULTITREE_ERROR;
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| 78 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 79 | }
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| 80 | else if (MultiTree_GetName(childTreeHandle, name) != MULTITREE_OK)
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| 81 | {
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| 82 | result = JSON_ENCODER_MULTITREE_ERROR;
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| 83 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 84 | }
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| 85 | else if (STRING_concat_with_STRING(destination, name) != 0)
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| 86 | {
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| 87 | result = JSON_ENCODER_ERROR;
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| 88 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 89 | }
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| 90 | else if (STRING_concat(destination, "\":") != 0)
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| 91 | {
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| 92 | result = JSON_ENCODER_ERROR;
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| 93 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 94 | }
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| 95 | else
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| 96 | {
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| 97 | size_t innerChildCount;
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| 98 | if (MultiTree_GetChildCount(childTreeHandle, &innerChildCount) != MULTITREE_OK)
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| 99 | {
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| 100 | result = JSON_ENCODER_MULTITREE_ERROR;
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| 101 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 102 | }
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| 103 | else
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| 104 | {
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| 105 | if (innerChildCount > 0)
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| 106 | {
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| 107 | STRING_HANDLE child = STRING_new();
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| 108 | if (child == NULL)
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| 109 | {
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| 110 | result = JSON_ENCODER_ERROR;
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| 111 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 112 | }
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| 113 | else
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| 114 | {
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| 115 | if ((result = JSONEncoder_EncodeTree(childTreeHandle, child, toStringFunc)) != JSON_ENCODER_OK)
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| 116 | {
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| 117 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 118 | }
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| 119 | else if (STRING_concat_with_STRING(destination, child)!=0)
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| 120 | {
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| 121 | result = JSON_ENCODER_ERROR;
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| 122 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 123 | }
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| 124 | STRING_delete(child);
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| 125 | }
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| 126 | }
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| 127 | else
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| 128 | {
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| 129 | const void* value;
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| 130 | if (MultiTree_GetValue(childTreeHandle, &value) != MULTITREE_OK)
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| 131 | {
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| 132 | result = JSON_ENCODER_MULTITREE_ERROR;
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| 133 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 134 |
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| 135 | }
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| 136 | else
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| 137 | {
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| 138 | STRING_HANDLE childValue = STRING_new();
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| 139 | if (childValue == NULL)
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| 140 | {
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| 141 | result = JSON_ENCODER_ERROR;
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| 142 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 143 | }
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| 144 | else
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| 145 | {
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| 146 | if (toStringFunc(childValue, value) != JSON_ENCODER_TOSTRING_OK)
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| 147 | {
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| 148 | result = JSON_ENCODER_TOSTRING_FUNCTION_ERROR;
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| 149 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 150 | }
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| 151 | else if (STRING_concat_with_STRING(destination, childValue)!=0)
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| 152 | {
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| 153 | result = JSON_ENCODER_ERROR;
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| 154 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 155 | }
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| 156 | else
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| 157 | {
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| 158 | /*do nothing, result = JSON_ENCODER_OK is set above at the beginning of the FOR loop*/
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| 159 | }
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| 160 | STRING_delete(childValue);
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| 161 | }
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| 162 | }
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| 163 | }
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| 164 | }
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| 165 | }
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| 166 | STRING_delete(name);
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| 167 | }
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| 168 | }
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| 169 | }
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| 170 |
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| 171 | if ((i == childCount) && (result == JSON_ENCODER_OK))
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| 172 | {
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| 173 | if (STRING_concat(destination, "}") != 0)
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| 174 | {
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| 175 | result = JSON_ENCODER_ERROR;
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| 176 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
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| 177 | }
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| 178 | else
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| 179 | {
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| 180 | /* Codes_SRS_JSON_ENCODER_99_031:[On success, JSONEncoder_EncodeTree shall return JSON_ENCODER_OK.] */
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| 181 | result = JSON_ENCODER_OK;
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| 182 | }
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| 183 | }
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| 184 | }
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| 185 | }
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| 186 |
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| 187 | return result;
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| 188 | #ifdef _MSC_VER
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| 189 | #pragma warning(disable: 4701) /* potentially uninitialized local variable 'result' used */ /* the scanner cannot track variable "i" and link it to childCount*/
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| 190 | #endif
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| 191 | }
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| 192 |
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| 193 | JSON_ENCODER_TOSTRING_RESULT JSONEncoder_CharPtr_ToString(STRING_HANDLE destination, const void* value)
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| 194 | {
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| 195 | JSON_ENCODER_TOSTRING_RESULT result;
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| 196 |
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| 197 | /*Coes_SRS_JSON_ENCODER_99_047:[ JSONEncoder_CharPtr_ToString shall return JSON_ENCODER_TOSTRING_INVALID_ARG if destination or value parameters passed to it are NULL.]*/
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| 198 | if ((destination == NULL) ||
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| 199 | (value == NULL))
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| 200 | {
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| 201 | result = JSON_ENCODER_TOSTRING_INVALID_ARG;
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| 202 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_TOSTRING_RESULT, result));
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| 203 | }
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| 204 | /*Codes_SRS_JSON_ENCODER_99_048:[ JSONEncoder_CharPtr_ToString shall use strcpy_s to copy from value to destination.]*/
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| 205 | else if (STRING_concat(destination, (const char*)value) != 0)
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| 206 | {
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| 207 | /*Codes_SRS_JSON_ENCODER_99_049:[ If strcpy_s fails then JSONEncoder_CharPtr_ToString shall return JSON_ENCODER_TOSTRING_ERROR.]*/
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| 208 | result = JSON_ENCODER_TOSTRING_ERROR;
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| 209 | LogError("(result = %s)", MU_ENUM_TO_STRING(JSON_ENCODER_TOSTRING_RESULT, result));
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| 210 | }
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| 211 | else
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| 212 | {
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| 213 | /*Codes_SRS_JSON_ENCODER_99_050:[ If strcpy_s doesn't fail, then JSONEncoder_CharPtr_ToString shall return JSON_ENCODER_TOSTRING_OK]*/
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| 214 | result = JSON_ENCODER_TOSTRING_OK;
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| 215 | }
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| 216 |
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| 217 | return result;
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| 218 | }
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