1 | /* |
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2 | Parson ( http://kgabis.github.com/parson/ ) |
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3 | Copyright (c) 2012 - 2014 Krzysztof Gabis |
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4 | |
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5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
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6 | of this software and associated documentation files (the "Software"), to deal |
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7 | in the Software without restriction, including without limitation the rights |
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8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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9 | copies of the Software, and to permit persons to whom the Software is |
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10 | furnished to do so, subject to the following conditions: |
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11 | |
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12 | The above copyright notice and this permission notice shall be included in |
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13 | all copies or substantial portions of the Software. |
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14 | |
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15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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21 | THE SOFTWARE. |
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22 | */ |
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23 | #ifdef _MSC_VER |
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24 | #define _CRT_SECURE_NO_WARNINGS |
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25 | #endif |
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26 | |
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27 | #include "parson.h" |
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28 | |
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29 | #include <errno.h> |
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30 | #include <stdio.h> |
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31 | #include <stdlib.h> |
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32 | #include <string.h> |
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33 | #include <ctype.h> |
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34 | #include <math.h> |
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35 | |
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36 | #define STARTING_CAPACITY 15 |
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37 | #define ARRAY_MAX_CAPACITY 122880 /* 15*(2^13) */ |
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38 | #define OBJECT_MAX_CAPACITY 960 /* 15*(2^6) */ |
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39 | #define MAX_NESTING 19 |
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40 | #define DOUBLE_SERIALIZATION_FORMAT "%f" |
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41 | #define JINT_SERIALIZATION_FORMAT "%lld" |
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42 | |
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43 | #define SIZEOF_TOKEN(a) (sizeof(a) - 1) |
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44 | #define SKIP_CHAR(str) ((*str)++) |
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45 | #define SKIP_WHITESPACES(str) while (isspace(**str)) { SKIP_CHAR(str); } |
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46 | #define MAX(a, b) ((a) > (b) ? (a) : (b)) |
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47 | |
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48 | #define PARSON_MALLOC(a) malloc(a) |
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49 | #define PARSON_FREE(a) free((void*)(a)) |
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50 | #define PARSON_REALLOC(a, b) realloc((a), (b)) |
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51 | |
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52 | #define PRINT_AND_SKIP(str, to_append) str += sprintf(str, to_append); |
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53 | #define PRINTF_AND_SKIP(str, format, to_append) str += sprintf(str, format, to_append); |
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54 | |
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55 | #define IS_CONT(b) (((unsigned char)(b) & 0xC0) == 0x80) /* is utf-8 continuation byte */ |
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56 | |
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57 | /* Type definitions */ |
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58 | typedef union json_value_value { |
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59 | const char *string; |
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60 | double number; |
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61 | jint integer; |
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62 | JSON_Object *object; |
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63 | JSON_Array *array; |
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64 | int boolean; |
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65 | int null; |
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66 | } JSON_Value_Value; |
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67 | |
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68 | struct json_value_t { |
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69 | JSON_Value_Type type; |
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70 | JSON_Value_Value value; |
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71 | }; |
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72 | |
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73 | struct json_object_t { |
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74 | const char **names; |
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75 | JSON_Value **values; |
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76 | size_t count; |
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77 | size_t capacity; |
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78 | }; |
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79 | |
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80 | struct json_array_t { |
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81 | JSON_Value **items; |
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82 | size_t count; |
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83 | size_t capacity; |
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84 | }; |
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85 | |
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86 | /* Various */ |
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87 | static char * read_file(const char *filename); |
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88 | static void remove_comments(char *string, const char *start_token, const char *end_token); |
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89 | static int try_realloc(void **ptr, size_t new_size); |
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90 | static char * parson_strndup(const char *string, size_t n); |
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91 | static char * parson_strdup(const char *string); |
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92 | static int is_utf16_hex(const unsigned char *string); |
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93 | static int num_bytes_in_utf8_sequence(unsigned char c); |
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94 | static int verify_utf8_sequence(const unsigned char *string, int *len); |
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95 | static int is_valid_utf8(const char *string, size_t string_len); |
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96 | static int is_decimal(const char *string, size_t length); |
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97 | static size_t serialization_strlen(const char *string); |
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98 | |
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99 | /* JSON Object */ |
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100 | static JSON_Object * json_object_init(void); |
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101 | static JSON_Status json_object_add(JSON_Object *object, const char *name, JSON_Value *value); |
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102 | static JSON_Status json_object_resize(JSON_Object *object, size_t capacity); |
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103 | static JSON_Value * json_object_nget_value(const JSON_Object *object, const char *name, size_t n); |
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104 | static void json_object_free(JSON_Object *object); |
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105 | |
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106 | /* JSON Array */ |
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107 | static JSON_Array * json_array_init(void); |
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108 | static JSON_Status json_array_add(JSON_Array *array, JSON_Value *value); |
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109 | static JSON_Status json_array_resize(JSON_Array *array, size_t capacity); |
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110 | static void json_array_free(JSON_Array *array); |
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111 | |
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112 | /* JSON Value */ |
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113 | static JSON_Value * json_value_init_string_no_copy(const char *string); |
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114 | |
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115 | /* Parser */ |
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116 | static void skip_quotes(const char **string); |
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117 | static int parse_utf_16(const char **unprocessed, char **processed); |
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118 | static char* process_string(const char *input, size_t len); |
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119 | static const char * get_quoted_string(const char **string); |
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120 | static JSON_Value * parse_object_value(const char **string, size_t nesting); |
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121 | static JSON_Value * parse_array_value(const char **string, size_t nesting); |
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122 | static JSON_Value * parse_string_value(const char **string); |
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123 | static JSON_Value * parse_boolean_value(const char **string); |
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124 | static JSON_Value * parse_number_value(const char **string); |
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125 | static JSON_Value * parse_null_value(const char **string); |
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126 | static JSON_Value * parse_value(const char **string, size_t nesting); |
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127 | |
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128 | /* Serialization */ |
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129 | static size_t json_serialization_size_r(const JSON_Value *value, char *buf); |
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130 | static char * json_serialize_to_buffer_r(const JSON_Value *value, char *buf); |
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131 | static char * json_serialize_string(const char *string, char *buf); |
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132 | |
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133 | /* Various */ |
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134 | static int try_realloc(void **ptr, size_t new_size) { |
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135 | void *reallocated_ptr = NULL; |
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136 | if (new_size == 0) { |
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137 | return JSONFailure; |
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138 | } |
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139 | reallocated_ptr = PARSON_REALLOC(*ptr, new_size); |
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140 | if (reallocated_ptr == NULL) { |
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141 | return JSONFailure; |
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142 | } |
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143 | *ptr = reallocated_ptr; |
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144 | return JSONSuccess; |
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145 | } |
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146 | |
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147 | static char * parson_strndup(const char *string, size_t n) { |
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148 | char *output_string = (char*)PARSON_MALLOC(n + 1); |
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149 | if (!output_string) |
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150 | return NULL; |
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151 | output_string[n] = '\0'; |
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152 | strncpy(output_string, string, n); |
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153 | return output_string; |
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154 | } |
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155 | |
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156 | static char * parson_strdup(const char *string) { |
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157 | return parson_strndup(string, strlen(string)); |
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158 | } |
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159 | |
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160 | static int is_utf16_hex(const unsigned char *s) { |
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161 | return isxdigit(s[0]) && isxdigit(s[1]) && isxdigit(s[2]) && isxdigit(s[3]); |
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162 | } |
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163 | |
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164 | static int num_bytes_in_utf8_sequence(unsigned char c) { |
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165 | if (c == 0xC0 || c == 0xC1 || c > 0xF4 || IS_CONT(c)) { |
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166 | return 0; |
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167 | } else if ((c & 0x80) == 0) { /* 0xxxxxxx */ |
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168 | return 1; |
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169 | } else if ((c & 0xE0) == 0xC0) { /* 110xxxxx */ |
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170 | return 2; |
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171 | } else if ((c & 0xF0) == 0xE0) { /* 1110xxxx */ |
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172 | return 3; |
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173 | } else if ((c & 0xF8) == 0xF0) { /* 11110xxx */ |
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174 | return 4; |
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175 | } |
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176 | return 0; /* won't happen */ |
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177 | } |
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178 | |
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179 | static int verify_utf8_sequence(const unsigned char *string, int *len) { |
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180 | unsigned int cp = 0; |
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181 | *len = num_bytes_in_utf8_sequence(string[0]); |
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182 | |
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183 | if (*len == 1) { |
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184 | cp = string[0]; |
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185 | } else if (*len == 2 && IS_CONT(string[1])) { |
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186 | cp = string[0] & 0x1F; |
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187 | cp = (cp << 6) | (string[1] & 0x3F); |
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188 | } else if (*len == 3 && IS_CONT(string[1]) && IS_CONT(string[2])) { |
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189 | cp = ((unsigned char)string[0]) & 0xF; |
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190 | cp = (cp << 6) | (string[1] & 0x3F); |
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191 | cp = (cp << 6) | (string[2] & 0x3F); |
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192 | } else if (*len == 4 && IS_CONT(string[1]) && IS_CONT(string[2]) && IS_CONT(string[3])) { |
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193 | cp = string[0] & 0x7; |
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194 | cp = (cp << 6) | (string[1] & 0x3F); |
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195 | cp = (cp << 6) | (string[2] & 0x3F); |
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196 | cp = (cp << 6) | (string[3] & 0x3F); |
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197 | } else { |
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198 | return 0; |
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199 | } |
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200 | |
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201 | /* overlong encodings */ |
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202 | if ((cp < 0x80 && *len > 1) || |
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203 | (cp < 0x800 && *len > 2) || |
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204 | (cp < 0x10000 && *len > 3)) { |
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205 | return 0; |
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206 | } |
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207 | |
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208 | /* invalid unicode */ |
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209 | if (cp > 0x10FFFF) { |
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210 | return 0; |
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211 | } |
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212 | |
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213 | /* surrogate halves */ |
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214 | if (cp >= 0xD800 && cp <= 0xDFFF) { |
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215 | return 0; |
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216 | } |
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217 | |
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218 | return 1; |
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219 | } |
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220 | |
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221 | static int is_valid_utf8(const char *string, size_t string_len) { |
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222 | int len = 0; |
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223 | const char *string_end = string + string_len; |
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224 | while (string < string_end) { |
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225 | if (!verify_utf8_sequence((const unsigned char*)string, &len)) { |
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226 | return 0; |
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227 | } |
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228 | string += len; |
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229 | } |
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230 | return 1; |
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231 | } |
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232 | |
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233 | static int is_decimal(const char *string, size_t length) { |
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234 | if (length > 1 && string[0] == '0' && string[1] != '.') |
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235 | return 0; |
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236 | if (length > 2 && !strncmp(string, "-0", 2) && string[2] != '.') |
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237 | return 0; |
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238 | while (length--) |
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239 | if (strchr("xX", string[length])) |
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240 | return 0; |
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241 | return 1; |
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242 | } |
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243 | |
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244 | static size_t serialization_strlen(const char *string) { |
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245 | size_t result = 0; |
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246 | size_t i = 0, len = strlen(string); |
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247 | for (i = 0; i < len; i++) { |
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248 | if (strchr("\"\\\b\f\n\r\t", string[i])) /* must be escaped */ |
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249 | result += 2; |
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250 | else |
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251 | result += 1; |
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252 | } |
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253 | return result; |
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254 | } |
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255 | |
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256 | static char * read_file(const char * filename) { |
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257 | FILE *fp = fopen(filename, "r"); |
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258 | size_t file_size; |
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259 | long pos; |
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260 | char *file_contents; |
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261 | if (!fp) |
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262 | return NULL; |
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263 | fseek(fp, 0L, SEEK_END); |
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264 | pos = ftell(fp); |
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265 | if (pos < 0) { |
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266 | fclose(fp); |
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267 | return NULL; |
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268 | } |
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269 | file_size = pos; |
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270 | rewind(fp); |
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271 | file_contents = (char*)PARSON_MALLOC(sizeof(char) * (file_size + 1)); |
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272 | if (!file_contents) { |
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273 | fclose(fp); |
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274 | return NULL; |
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275 | } |
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276 | if (fread(file_contents, file_size, 1, fp) < 1) { |
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277 | if (ferror(fp)) { |
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278 | fclose(fp); |
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279 | PARSON_FREE(file_contents); |
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280 | return NULL; |
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281 | } |
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282 | } |
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283 | fclose(fp); |
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284 | file_contents[file_size] = '\0'; |
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285 | return file_contents; |
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286 | } |
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287 | |
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288 | static void remove_comments(char *string, const char *start_token, const char *end_token) { |
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289 | int in_string = 0, escaped = 0; |
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290 | size_t i; |
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291 | char *ptr = NULL, current_char; |
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292 | size_t start_token_len = strlen(start_token); |
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293 | size_t end_token_len = strlen(end_token); |
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294 | if (start_token_len == 0 || end_token_len == 0) |
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295 | return; |
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296 | while ((current_char = *string) != '\0') { |
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297 | if (current_char == '\\' && !escaped) { |
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298 | escaped = 1; |
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299 | string++; |
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300 | continue; |
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301 | } else if (current_char == '\"' && !escaped) { |
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302 | in_string = !in_string; |
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303 | } else if (!in_string && strncmp(string, start_token, start_token_len) == 0) { |
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304 | for(i = 0; i < start_token_len; i++) |
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305 | string[i] = ' '; |
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306 | string = string + start_token_len; |
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307 | ptr = strstr(string, end_token); |
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308 | if (!ptr) |
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309 | return; |
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310 | for (i = 0; i < (ptr - string) + end_token_len; i++) |
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311 | string[i] = ' '; |
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312 | string = ptr + end_token_len - 1; |
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313 | } |
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314 | escaped = 0; |
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315 | string++; |
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316 | } |
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317 | } |
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318 | |
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319 | /* JSON Object */ |
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320 | static JSON_Object * json_object_init(void) { |
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321 | JSON_Object *new_obj = (JSON_Object*)PARSON_MALLOC(sizeof(JSON_Object)); |
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322 | if (!new_obj) |
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323 | return NULL; |
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324 | new_obj->names = (const char**)NULL; |
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325 | new_obj->values = (JSON_Value**)NULL; |
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326 | new_obj->capacity = 0; |
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327 | new_obj->count = 0; |
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328 | return new_obj; |
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329 | } |
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330 | |
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331 | static JSON_Status json_object_add(JSON_Object *object, const char *name, JSON_Value *value) { |
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332 | size_t index = 0; |
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333 | if (object == NULL || name == NULL || value == NULL) { |
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334 | return JSONFailure; |
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335 | } |
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336 | if (object->count >= object->capacity) { |
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337 | size_t new_capacity = MAX(object->capacity * 2, STARTING_CAPACITY); |
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338 | if (new_capacity > OBJECT_MAX_CAPACITY) |
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339 | return JSONFailure; |
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340 | if (json_object_resize(object, new_capacity) == JSONFailure) |
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341 | return JSONFailure; |
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342 | } |
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343 | if (json_object_get_value(object, name) != NULL) |
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344 | return JSONFailure; |
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345 | index = object->count; |
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346 | object->names[index] = parson_strdup(name); |
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347 | if (object->names[index] == NULL) |
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348 | return JSONFailure; |
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349 | object->values[index] = value; |
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350 | object->count++; |
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351 | return JSONSuccess; |
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352 | } |
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353 | |
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354 | static JSON_Status json_object_resize(JSON_Object *object, size_t capacity) { |
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355 | if (try_realloc((void**)&object->names, capacity * sizeof(char*)) == JSONFailure) |
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356 | return JSONFailure; |
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357 | if (try_realloc((void**)&object->values, capacity * sizeof(JSON_Value*)) == JSONFailure) |
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358 | return JSONFailure; |
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359 | object->capacity = capacity; |
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360 | return JSONSuccess; |
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361 | } |
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362 | |
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363 | static JSON_Value * json_object_nget_value(const JSON_Object *object, const char *name, size_t n) { |
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364 | size_t i, name_length; |
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365 | for (i = 0; i < json_object_get_count(object); i++) { |
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366 | name_length = strlen(object->names[i]); |
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367 | if (name_length != n) |
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368 | continue; |
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369 | if (strncmp(object->names[i], name, n) == 0) |
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370 | return object->values[i]; |
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371 | } |
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372 | return NULL; |
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373 | } |
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374 | |
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375 | static void json_object_free(JSON_Object *object) { |
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376 | while(object->count--) { |
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377 | PARSON_FREE(object->names[object->count]); |
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378 | json_value_free(object->values[object->count]); |
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379 | } |
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380 | PARSON_FREE(object->names); |
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381 | PARSON_FREE(object->values); |
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382 | PARSON_FREE(object); |
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383 | } |
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384 | |
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385 | /* JSON Array */ |
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386 | static JSON_Array * json_array_init(void) { |
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387 | JSON_Array *new_array = (JSON_Array*)PARSON_MALLOC(sizeof(JSON_Array)); |
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388 | if (!new_array) |
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389 | return NULL; |
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390 | new_array->items = (JSON_Value**)NULL; |
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391 | new_array->capacity = 0; |
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392 | new_array->count = 0; |
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393 | return new_array; |
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394 | } |
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395 | |
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396 | static JSON_Status json_array_add(JSON_Array *array, JSON_Value *value) { |
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397 | if (array->count >= array->capacity) { |
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398 | size_t new_capacity = MAX(array->capacity * 2, STARTING_CAPACITY); |
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399 | if (new_capacity > ARRAY_MAX_CAPACITY) |
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400 | return JSONFailure; |
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401 | if (json_array_resize(array, new_capacity) == JSONFailure) |
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402 | return JSONFailure; |
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403 | } |
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404 | array->items[array->count] = value; |
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405 | array->count++; |
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406 | return JSONSuccess; |
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407 | } |
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408 | |
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409 | static JSON_Status json_array_resize(JSON_Array *array, size_t capacity) { |
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410 | if (try_realloc((void**)&array->items, capacity * sizeof(JSON_Value*)) == JSONFailure) |
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411 | return JSONFailure; |
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412 | array->capacity = capacity; |
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413 | return JSONSuccess; |
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414 | } |
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415 | |
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416 | static void json_array_free(JSON_Array *array) { |
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417 | while (array->count--) |
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418 | json_value_free(array->items[array->count]); |
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419 | PARSON_FREE(array->items); |
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420 | PARSON_FREE(array); |
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421 | } |
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422 | |
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423 | /* JSON Value */ |
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424 | static JSON_Value * json_value_init_string_no_copy(const char *string) { |
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425 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
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426 | if (!new_value) |
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427 | return NULL; |
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428 | new_value->type = JSONString; |
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429 | new_value->value.string = string; |
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430 | return new_value; |
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431 | } |
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432 | |
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433 | /* Parser */ |
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434 | static void skip_quotes(const char **string) { |
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435 | SKIP_CHAR(string); |
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436 | while (**string != '\"') { |
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437 | if (**string == '\0') |
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438 | return; |
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439 | if (**string == '\\') { |
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440 | SKIP_CHAR(string); |
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441 | if (**string == '\0') |
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442 | return; |
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443 | } |
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444 | SKIP_CHAR(string); |
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445 | } |
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446 | SKIP_CHAR(string); |
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447 | } |
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448 | |
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449 | static int parse_utf_16(const char **unprocessed, char **processed) { |
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450 | unsigned int cp, lead, trail; |
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451 | char *processed_ptr = *processed; |
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452 | const char *unprocessed_ptr = *unprocessed; |
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453 | unprocessed_ptr++; /* skips u */ |
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454 | if (!is_utf16_hex((const unsigned char*)unprocessed_ptr) || sscanf(unprocessed_ptr, "%4x", &cp) == EOF) |
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455 | return JSONFailure; |
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456 | if (cp < 0x80) { |
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457 | *processed_ptr = cp; /* 0xxxxxxx */ |
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458 | } else if (cp < 0x800) { |
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459 | *processed_ptr++ = ((cp >> 6) & 0x1F) | 0xC0; /* 110xxxxx */ |
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460 | *processed_ptr = ((cp ) & 0x3F) | 0x80; /* 10xxxxxx */ |
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461 | } else if (cp < 0xD800 || cp > 0xDFFF) { |
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462 | *processed_ptr++ = ((cp >> 12) & 0x0F) | 0xE0; /* 1110xxxx */ |
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463 | *processed_ptr++ = ((cp >> 6) & 0x3F) | 0x80; /* 10xxxxxx */ |
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464 | *processed_ptr = ((cp ) & 0x3F) | 0x80; /* 10xxxxxx */ |
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465 | } else if (cp >= 0xD800 && cp <= 0xDBFF) { /* lead surrogate (0xD800..0xDBFF) */ |
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466 | lead = cp; |
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467 | unprocessed_ptr += 4; /* should always be within the buffer, otherwise previous sscanf would fail */ |
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468 | if (*unprocessed_ptr++ != '\\' || *unprocessed_ptr++ != 'u' || /* starts with \u? */ |
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469 | !is_utf16_hex((const unsigned char*)unprocessed_ptr) || |
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470 | sscanf(unprocessed_ptr, "%4x", &trail) == EOF || |
---|
471 | trail < 0xDC00 || trail > 0xDFFF) { /* valid trail surrogate? (0xDC00..0xDFFF) */ |
---|
472 | return JSONFailure; |
---|
473 | } |
---|
474 | cp = ((((lead-0xD800)&0x3FF)<<10)|((trail-0xDC00)&0x3FF))+0x010000; |
---|
475 | *processed_ptr++ = (((cp >> 18) & 0x07) | 0xF0); /* 11110xxx */ |
---|
476 | *processed_ptr++ = (((cp >> 12) & 0x3F) | 0x80); /* 10xxxxxx */ |
---|
477 | *processed_ptr++ = (((cp >> 6) & 0x3F) | 0x80); /* 10xxxxxx */ |
---|
478 | *processed_ptr = (((cp ) & 0x3F) | 0x80); /* 10xxxxxx */ |
---|
479 | } else { /* trail surrogate before lead surrogate */ |
---|
480 | return JSONFailure; |
---|
481 | } |
---|
482 | unprocessed_ptr += 3; |
---|
483 | *processed = processed_ptr; |
---|
484 | *unprocessed = unprocessed_ptr; |
---|
485 | return JSONSuccess; |
---|
486 | } |
---|
487 | |
---|
488 | |
---|
489 | /* Copies and processes passed string up to supplied length. |
---|
490 | Example: "\u006Corem ipsum" -> lorem ipsum */ |
---|
491 | static char* process_string(const char *input, size_t len) { |
---|
492 | const char *input_ptr = input; |
---|
493 | char *output = (char*)PARSON_MALLOC((len + 1) * sizeof(char)); |
---|
494 | char *output_ptr = output; |
---|
495 | while ((*input_ptr != '\0') && (size_t)(input_ptr - input) < len) { |
---|
496 | if (*input_ptr == '\\') { |
---|
497 | input_ptr++; |
---|
498 | switch (*input_ptr) { |
---|
499 | case '\"': *output_ptr = '\"'; break; |
---|
500 | case '\\': *output_ptr = '\\'; break; |
---|
501 | case '/': *output_ptr = '/'; break; |
---|
502 | case 'b': *output_ptr = '\b'; break; |
---|
503 | case 'f': *output_ptr = '\f'; break; |
---|
504 | case 'n': *output_ptr = '\n'; break; |
---|
505 | case 'r': *output_ptr = '\r'; break; |
---|
506 | case 't': *output_ptr = '\t'; break; |
---|
507 | case 'u': |
---|
508 | if (parse_utf_16(&input_ptr, &output_ptr) == JSONFailure) |
---|
509 | goto error; |
---|
510 | break; |
---|
511 | default: |
---|
512 | goto error; |
---|
513 | } |
---|
514 | } else if ((unsigned char)*input_ptr < 0x20) { |
---|
515 | goto error; /* 0x00-0x19 are invalid characters for json string (http://www.ietf.org/rfc/rfc4627.txt) */ |
---|
516 | } else { |
---|
517 | *output_ptr = *input_ptr; |
---|
518 | } |
---|
519 | output_ptr++; |
---|
520 | input_ptr++; |
---|
521 | } |
---|
522 | *output_ptr = '\0'; |
---|
523 | if (try_realloc((void**)&output, (size_t)(output_ptr-output) + 1) == JSONFailure) /* resize to new length */ |
---|
524 | goto error; |
---|
525 | return output; |
---|
526 | error: |
---|
527 | free(output); |
---|
528 | return NULL; |
---|
529 | } |
---|
530 | |
---|
531 | /* Return processed contents of a string between quotes and |
---|
532 | skips passed argument to a matching quote. */ |
---|
533 | static const char * get_quoted_string(const char **string) { |
---|
534 | const char *string_start = *string; |
---|
535 | size_t string_len = 0; |
---|
536 | skip_quotes(string); |
---|
537 | if (**string == '\0') |
---|
538 | return NULL; |
---|
539 | string_len = *string - string_start - 2; /* length without quotes */ |
---|
540 | return process_string(string_start + 1, string_len); |
---|
541 | } |
---|
542 | |
---|
543 | static JSON_Value * parse_value(const char **string, size_t nesting) { |
---|
544 | if (nesting > MAX_NESTING) |
---|
545 | return NULL; |
---|
546 | SKIP_WHITESPACES(string); |
---|
547 | switch (**string) { |
---|
548 | case '{': |
---|
549 | return parse_object_value(string, nesting + 1); |
---|
550 | case '[': |
---|
551 | return parse_array_value(string, nesting + 1); |
---|
552 | case '\"': |
---|
553 | return parse_string_value(string); |
---|
554 | case 'f': case 't': |
---|
555 | return parse_boolean_value(string); |
---|
556 | case '-': |
---|
557 | case '0': case '1': case '2': case '3': case '4': |
---|
558 | case '5': case '6': case '7': case '8': case '9': |
---|
559 | return parse_number_value(string); |
---|
560 | case 'n': |
---|
561 | return parse_null_value(string); |
---|
562 | default: |
---|
563 | return NULL; |
---|
564 | } |
---|
565 | } |
---|
566 | |
---|
567 | static JSON_Value * parse_object_value(const char **string, size_t nesting) { |
---|
568 | JSON_Value *output_value = json_value_init_object(), *new_value = NULL; |
---|
569 | JSON_Object *output_object = json_value_get_object(output_value); |
---|
570 | const char *new_key = NULL; |
---|
571 | if (output_value == NULL) |
---|
572 | return NULL; |
---|
573 | SKIP_CHAR(string); |
---|
574 | SKIP_WHITESPACES(string); |
---|
575 | if (**string == '}') { /* empty object */ |
---|
576 | SKIP_CHAR(string); |
---|
577 | return output_value; |
---|
578 | } |
---|
579 | while (**string != '\0') { |
---|
580 | new_key = get_quoted_string(string); |
---|
581 | SKIP_WHITESPACES(string); |
---|
582 | if (new_key == NULL || **string != ':') { |
---|
583 | json_value_free(output_value); |
---|
584 | return NULL; |
---|
585 | } |
---|
586 | SKIP_CHAR(string); |
---|
587 | new_value = parse_value(string, nesting); |
---|
588 | if (new_value == NULL) { |
---|
589 | PARSON_FREE(new_key); |
---|
590 | json_value_free(output_value); |
---|
591 | return NULL; |
---|
592 | } |
---|
593 | if(json_object_add(output_object, new_key, new_value) == JSONFailure) { |
---|
594 | PARSON_FREE(new_key); |
---|
595 | PARSON_FREE(new_value); |
---|
596 | json_value_free(output_value); |
---|
597 | return NULL; |
---|
598 | } |
---|
599 | PARSON_FREE(new_key); |
---|
600 | SKIP_WHITESPACES(string); |
---|
601 | if (**string != ',') |
---|
602 | break; |
---|
603 | SKIP_CHAR(string); |
---|
604 | SKIP_WHITESPACES(string); |
---|
605 | } |
---|
606 | SKIP_WHITESPACES(string); |
---|
607 | if (**string != '}' || /* Trim object after parsing is over */ |
---|
608 | json_object_resize(output_object, json_object_get_count(output_object)) == JSONFailure) { |
---|
609 | json_value_free(output_value); |
---|
610 | return NULL; |
---|
611 | } |
---|
612 | SKIP_CHAR(string); |
---|
613 | return output_value; |
---|
614 | } |
---|
615 | |
---|
616 | static JSON_Value * parse_array_value(const char **string, size_t nesting) { |
---|
617 | JSON_Value *output_value = json_value_init_array(), *new_array_value = NULL; |
---|
618 | JSON_Array *output_array = json_value_get_array(output_value); |
---|
619 | if (!output_value) |
---|
620 | return NULL; |
---|
621 | SKIP_CHAR(string); |
---|
622 | SKIP_WHITESPACES(string); |
---|
623 | if (**string == ']') { /* empty array */ |
---|
624 | SKIP_CHAR(string); |
---|
625 | return output_value; |
---|
626 | } |
---|
627 | while (**string != '\0') { |
---|
628 | new_array_value = parse_value(string, nesting); |
---|
629 | if (!new_array_value) { |
---|
630 | json_value_free(output_value); |
---|
631 | return NULL; |
---|
632 | } |
---|
633 | if(json_array_add(output_array, new_array_value) == JSONFailure) { |
---|
634 | PARSON_FREE(new_array_value); |
---|
635 | json_value_free(output_value); |
---|
636 | return NULL; |
---|
637 | } |
---|
638 | SKIP_WHITESPACES(string); |
---|
639 | if (**string != ',') |
---|
640 | break; |
---|
641 | SKIP_CHAR(string); |
---|
642 | SKIP_WHITESPACES(string); |
---|
643 | } |
---|
644 | SKIP_WHITESPACES(string); |
---|
645 | if (**string != ']' || /* Trim array after parsing is over */ |
---|
646 | json_array_resize(output_array, json_array_get_count(output_array)) == JSONFailure) { |
---|
647 | json_value_free(output_value); |
---|
648 | return NULL; |
---|
649 | } |
---|
650 | SKIP_CHAR(string); |
---|
651 | return output_value; |
---|
652 | } |
---|
653 | |
---|
654 | static JSON_Value * parse_string_value(const char **string) { |
---|
655 | const char *new_string = get_quoted_string(string); |
---|
656 | if (!new_string) |
---|
657 | return NULL; |
---|
658 | return json_value_init_string_no_copy(new_string); |
---|
659 | } |
---|
660 | |
---|
661 | static JSON_Value * parse_boolean_value(const char **string) { |
---|
662 | size_t true_token_size = SIZEOF_TOKEN("true"); |
---|
663 | size_t false_token_size = SIZEOF_TOKEN("false"); |
---|
664 | if (strncmp("true", *string, true_token_size) == 0) { |
---|
665 | *string += true_token_size; |
---|
666 | return json_value_init_boolean(1); |
---|
667 | } else if (strncmp("false", *string, false_token_size) == 0) { |
---|
668 | *string += false_token_size; |
---|
669 | return json_value_init_boolean(0); |
---|
670 | } |
---|
671 | return NULL; |
---|
672 | } |
---|
673 | |
---|
674 | static JSON_Value * parse_number_value(const char **string) { |
---|
675 | char *jint_end, *double_end; |
---|
676 | double number = strtod(*string, &double_end); |
---|
677 | jint integer = strtoll(*string, &jint_end, 10); |
---|
678 | JSON_Value *output_value; |
---|
679 | if (double_end > jint_end || errno == ERANGE) { |
---|
680 | if (is_decimal(*string, double_end - *string)) { |
---|
681 | *string = double_end; |
---|
682 | output_value = json_value_init_number(number); |
---|
683 | } else { |
---|
684 | output_value = NULL; |
---|
685 | } |
---|
686 | } else { |
---|
687 | *string = jint_end; |
---|
688 | output_value = json_value_init_integer(integer); |
---|
689 | } |
---|
690 | return output_value; |
---|
691 | } |
---|
692 | |
---|
693 | static JSON_Value * parse_null_value(const char **string) { |
---|
694 | size_t token_size = SIZEOF_TOKEN("null"); |
---|
695 | if (strncmp("null", *string, token_size) == 0) { |
---|
696 | *string += token_size; |
---|
697 | return json_value_init_null(); |
---|
698 | } |
---|
699 | return NULL; |
---|
700 | } |
---|
701 | |
---|
702 | /* Serialization */ |
---|
703 | static size_t json_serialization_size_r(const JSON_Value *value, char *buf) { |
---|
704 | size_t result_size = 0; |
---|
705 | const char *key = NULL; |
---|
706 | JSON_Value *temp_value = NULL; |
---|
707 | JSON_Array *array = NULL; |
---|
708 | JSON_Object *object = NULL; |
---|
709 | size_t i = 0, count = 0; |
---|
710 | double num = 0.0; |
---|
711 | jint intnum = 0; |
---|
712 | switch (json_value_get_type(value)) { |
---|
713 | case JSONArray: |
---|
714 | array = json_value_get_array(value); |
---|
715 | count = json_array_get_count(array); |
---|
716 | result_size += 2; /* [ and ] brackets */ |
---|
717 | if (count > 0) |
---|
718 | result_size += count - 1; /* , between items */ |
---|
719 | for (i = 0; i < count; i++) { |
---|
720 | temp_value = json_array_get_value(array, i); |
---|
721 | result_size += json_serialization_size_r(temp_value, buf); |
---|
722 | } |
---|
723 | return result_size; |
---|
724 | case JSONObject: |
---|
725 | object = json_value_get_object(value); |
---|
726 | count = json_object_get_count(object); |
---|
727 | result_size += 2; /* { and } brackets */ |
---|
728 | if (count > 0) |
---|
729 | result_size += (count * 2) - 1; /* : between keys and values and , between items */ |
---|
730 | for (i = 0; i < count; i++) { |
---|
731 | key = json_object_get_name(object, i); |
---|
732 | result_size += serialization_strlen(key) + 2; /* string and quotes */ |
---|
733 | result_size += json_serialization_size_r(json_object_get_value(object, key), buf); |
---|
734 | } |
---|
735 | return result_size; |
---|
736 | case JSONString: |
---|
737 | return serialization_strlen(json_value_get_string(value)) + 2; /* string and quotes */ |
---|
738 | case JSONBoolean: |
---|
739 | if (json_value_get_boolean(value)) |
---|
740 | return 4; /* strlen("true"); */ |
---|
741 | else |
---|
742 | return 5; /* strlen("false"); */ |
---|
743 | case JSONInteger: |
---|
744 | intnum = json_value_get_integer(value); |
---|
745 | return (size_t)sprintf(buf, JINT_SERIALIZATION_FORMAT, intnum); |
---|
746 | case JSONNumber: |
---|
747 | num = json_value_get_number(value); |
---|
748 | if (num == ((double)(jint)num) ) /* check if num is integer */ |
---|
749 | return (size_t)sprintf(buf, JINT_SERIALIZATION_FORMAT, (jint)num); |
---|
750 | return (size_t)sprintf(buf, DOUBLE_SERIALIZATION_FORMAT, num); |
---|
751 | case JSONNull: |
---|
752 | return 4; /* strlen("null"); */ |
---|
753 | case JSONError: |
---|
754 | return 0; |
---|
755 | default: |
---|
756 | return 0; |
---|
757 | } |
---|
758 | } |
---|
759 | |
---|
760 | char* json_serialize_to_buffer_r(const JSON_Value *value, char *buf) |
---|
761 | { |
---|
762 | const char *key = NULL, *string = NULL; |
---|
763 | JSON_Value *temp_value = NULL; |
---|
764 | JSON_Array *array = NULL; |
---|
765 | JSON_Object *object = NULL; |
---|
766 | size_t i = 0, count = 0; |
---|
767 | double num = 0.0; |
---|
768 | jint intnum = 0; |
---|
769 | switch (json_value_get_type(value)) { |
---|
770 | case JSONArray: |
---|
771 | array = json_value_get_array(value); |
---|
772 | count = json_array_get_count(array); |
---|
773 | PRINT_AND_SKIP(buf, "["); |
---|
774 | for (i = 0; i < count; i++) { |
---|
775 | temp_value = json_array_get_value(array, i); |
---|
776 | buf = json_serialize_to_buffer_r(temp_value, buf); |
---|
777 | if (buf == NULL) |
---|
778 | return NULL; |
---|
779 | if (i < (count - 1)) |
---|
780 | PRINT_AND_SKIP(buf, ","); |
---|
781 | } |
---|
782 | PRINT_AND_SKIP(buf, "]"); |
---|
783 | return buf; |
---|
784 | case JSONObject: |
---|
785 | object = json_value_get_object(value); |
---|
786 | count = json_object_get_count(object); |
---|
787 | PRINT_AND_SKIP(buf, "{"); |
---|
788 | for (i = 0; i < count; i++) { |
---|
789 | key = json_object_get_name(object, i); |
---|
790 | buf = json_serialize_string(key, buf); |
---|
791 | if (buf == NULL) |
---|
792 | return NULL; |
---|
793 | PRINT_AND_SKIP(buf, ":"); |
---|
794 | temp_value = json_object_get_value(object, key); |
---|
795 | buf = json_serialize_to_buffer_r(temp_value, buf); |
---|
796 | if (buf == NULL) |
---|
797 | return NULL; |
---|
798 | if (i < (count - 1)) |
---|
799 | PRINT_AND_SKIP(buf, ","); |
---|
800 | } |
---|
801 | PRINT_AND_SKIP(buf, "}"); |
---|
802 | return buf; |
---|
803 | case JSONString: |
---|
804 | string = json_value_get_string(value); |
---|
805 | buf = json_serialize_string(string, buf); |
---|
806 | return buf; |
---|
807 | case JSONBoolean: |
---|
808 | if (json_value_get_boolean(value)) { |
---|
809 | PRINT_AND_SKIP(buf, "true"); |
---|
810 | } else { |
---|
811 | PRINT_AND_SKIP(buf, "false"); |
---|
812 | } |
---|
813 | return buf; |
---|
814 | case JSONInteger: |
---|
815 | intnum = json_value_get_integer(value); |
---|
816 | PRINTF_AND_SKIP(buf, JINT_SERIALIZATION_FORMAT, intnum); |
---|
817 | return buf; |
---|
818 | case JSONNumber: |
---|
819 | num = json_value_get_number(value); |
---|
820 | if (num == ((double)(int)num)) { /* check if num is integer */ |
---|
821 | PRINTF_AND_SKIP(buf, "%d", (int)num); |
---|
822 | } else { |
---|
823 | PRINTF_AND_SKIP(buf, DOUBLE_SERIALIZATION_FORMAT, num); |
---|
824 | } |
---|
825 | return buf; |
---|
826 | case JSONNull: |
---|
827 | PRINT_AND_SKIP(buf, "null"); |
---|
828 | return buf; |
---|
829 | case JSONError: |
---|
830 | return NULL; |
---|
831 | default: |
---|
832 | return NULL; |
---|
833 | } |
---|
834 | } |
---|
835 | |
---|
836 | static char * json_serialize_string(const char *string, char *buf) { |
---|
837 | size_t i = 0, len = strlen(string); |
---|
838 | char c = '\0'; |
---|
839 | PRINT_AND_SKIP(buf, "\"") |
---|
840 | for (i = 0; i < len; i++) { |
---|
841 | c = string[i]; |
---|
842 | switch (c) { |
---|
843 | case '\"': PRINT_AND_SKIP(buf, "\\\""); break; |
---|
844 | case '\\': PRINT_AND_SKIP(buf, "\\\\"); break; |
---|
845 | case '\b': PRINT_AND_SKIP(buf, "\\b"); break; |
---|
846 | case '\f': PRINT_AND_SKIP(buf, "\\f"); break; |
---|
847 | case '\n': PRINT_AND_SKIP(buf, "\\n"); break; |
---|
848 | case '\r': PRINT_AND_SKIP(buf, "\\r"); break; |
---|
849 | case '\t': PRINT_AND_SKIP(buf, "\\t"); break; |
---|
850 | default: PRINTF_AND_SKIP(buf, "%c", c); break; |
---|
851 | } |
---|
852 | } |
---|
853 | PRINT_AND_SKIP(buf, "\""); |
---|
854 | return buf; |
---|
855 | } |
---|
856 | |
---|
857 | /* Parser API */ |
---|
858 | JSON_Value * json_parse_file(const char *filename) { |
---|
859 | char *file_contents = read_file(filename); |
---|
860 | JSON_Value *output_value = NULL; |
---|
861 | if (file_contents == NULL) |
---|
862 | return NULL; |
---|
863 | output_value = json_parse_string(file_contents); |
---|
864 | PARSON_FREE(file_contents); |
---|
865 | return output_value; |
---|
866 | } |
---|
867 | |
---|
868 | JSON_Value * json_parse_file_with_comments(const char *filename) { |
---|
869 | char *file_contents = read_file(filename); |
---|
870 | JSON_Value *output_value = NULL; |
---|
871 | if (file_contents == NULL) |
---|
872 | return NULL; |
---|
873 | output_value = json_parse_string_with_comments(file_contents); |
---|
874 | PARSON_FREE(file_contents); |
---|
875 | return output_value; |
---|
876 | } |
---|
877 | |
---|
878 | JSON_Value * json_parse_first(const char *string, const char **end) { |
---|
879 | const char *pos; |
---|
880 | JSON_Value *ret; |
---|
881 | |
---|
882 | if (string == NULL) |
---|
883 | return NULL; |
---|
884 | SKIP_WHITESPACES(&string); |
---|
885 | if (*string != '{' && *string != '[') |
---|
886 | return NULL; |
---|
887 | |
---|
888 | pos = string; |
---|
889 | ret = parse_value(&pos, 0); |
---|
890 | if (end) |
---|
891 | *end = pos; |
---|
892 | |
---|
893 | return ret; |
---|
894 | } |
---|
895 | |
---|
896 | JSON_Value * json_parse_string(const char *string) { |
---|
897 | return json_parse_first(string, NULL); |
---|
898 | } |
---|
899 | |
---|
900 | JSON_Value * json_parse_string_with_comments(const char *string) { |
---|
901 | JSON_Value *result = NULL; |
---|
902 | char *string_mutable_copy = NULL, *string_mutable_copy_ptr = NULL; |
---|
903 | string_mutable_copy = parson_strdup(string); |
---|
904 | if (string_mutable_copy == NULL) |
---|
905 | return NULL; |
---|
906 | remove_comments(string_mutable_copy, "/*", "*/"); |
---|
907 | remove_comments(string_mutable_copy, "//", "\n"); |
---|
908 | string_mutable_copy_ptr = string_mutable_copy; |
---|
909 | SKIP_WHITESPACES(&string_mutable_copy_ptr); |
---|
910 | if (*string_mutable_copy_ptr != '{' && *string_mutable_copy_ptr != '[') { |
---|
911 | PARSON_FREE(string_mutable_copy); |
---|
912 | return NULL; |
---|
913 | } |
---|
914 | result = parse_value((const char**)&string_mutable_copy_ptr, 0); |
---|
915 | PARSON_FREE(string_mutable_copy); |
---|
916 | return result; |
---|
917 | } |
---|
918 | |
---|
919 | |
---|
920 | /* JSON Object API */ |
---|
921 | |
---|
922 | JSON_Value * json_object_get_value(const JSON_Object *object, const char *name) { |
---|
923 | if (object == NULL || name == NULL) |
---|
924 | return NULL; |
---|
925 | return json_object_nget_value(object, name, strlen(name)); |
---|
926 | } |
---|
927 | |
---|
928 | const char * json_object_get_string(const JSON_Object *object, const char *name) { |
---|
929 | return json_value_get_string(json_object_get_value(object, name)); |
---|
930 | } |
---|
931 | |
---|
932 | jint json_object_get_integer(const JSON_Object *object, const char *name) { |
---|
933 | return json_value_get_integer(json_object_get_value(object, name)); |
---|
934 | } |
---|
935 | |
---|
936 | double json_object_get_number(const JSON_Object *object, const char *name) { |
---|
937 | return json_value_get_number(json_object_get_value(object, name)); |
---|
938 | } |
---|
939 | |
---|
940 | JSON_Object * json_object_get_object(const JSON_Object *object, const char *name) { |
---|
941 | return json_value_get_object(json_object_get_value(object, name)); |
---|
942 | } |
---|
943 | |
---|
944 | JSON_Array * json_object_get_array(const JSON_Object *object, const char *name) { |
---|
945 | return json_value_get_array(json_object_get_value(object, name)); |
---|
946 | } |
---|
947 | |
---|
948 | int json_object_get_boolean(const JSON_Object *object, const char *name) { |
---|
949 | return json_value_get_boolean(json_object_get_value(object, name)); |
---|
950 | } |
---|
951 | |
---|
952 | JSON_Value * json_object_dotget_value(const JSON_Object *object, const char *name) { |
---|
953 | const char *dot_position = strchr(name, '.'); |
---|
954 | if (!dot_position) |
---|
955 | return json_object_get_value(object, name); |
---|
956 | object = json_value_get_object(json_object_nget_value(object, name, dot_position - name)); |
---|
957 | return json_object_dotget_value(object, dot_position + 1); |
---|
958 | } |
---|
959 | |
---|
960 | const char * json_object_dotget_string(const JSON_Object *object, const char *name) { |
---|
961 | return json_value_get_string(json_object_dotget_value(object, name)); |
---|
962 | } |
---|
963 | |
---|
964 | jint json_object_dotget_integer(const JSON_Object *object, const char *name) { |
---|
965 | return json_value_get_integer(json_object_dotget_value(object, name)); |
---|
966 | } |
---|
967 | |
---|
968 | double json_object_dotget_number(const JSON_Object *object, const char *name) { |
---|
969 | return json_value_get_number(json_object_dotget_value(object, name)); |
---|
970 | } |
---|
971 | |
---|
972 | JSON_Object * json_object_dotget_object(const JSON_Object *object, const char *name) { |
---|
973 | return json_value_get_object(json_object_dotget_value(object, name)); |
---|
974 | } |
---|
975 | |
---|
976 | JSON_Array * json_object_dotget_array(const JSON_Object *object, const char *name) { |
---|
977 | return json_value_get_array(json_object_dotget_value(object, name)); |
---|
978 | } |
---|
979 | |
---|
980 | int json_object_dotget_boolean(const JSON_Object *object, const char *name) { |
---|
981 | return json_value_get_boolean(json_object_dotget_value(object, name)); |
---|
982 | } |
---|
983 | |
---|
984 | size_t json_object_get_count(const JSON_Object *object) { |
---|
985 | return object ? object->count : 0; |
---|
986 | } |
---|
987 | |
---|
988 | const char * json_object_get_name(const JSON_Object *object, size_t index) { |
---|
989 | if (index >= json_object_get_count(object)) |
---|
990 | return NULL; |
---|
991 | return object->names[index]; |
---|
992 | } |
---|
993 | |
---|
994 | int json_object_get_tuple(const JSON_Object *object, size_t index, |
---|
995 | const char **key, const JSON_Value **value) { |
---|
996 | if (index >= json_object_get_count(object)) |
---|
997 | return 0; |
---|
998 | *key = object->names[index]; |
---|
999 | *value = object->values[index]; |
---|
1000 | return 1; |
---|
1001 | } |
---|
1002 | |
---|
1003 | /* JSON Array API */ |
---|
1004 | JSON_Value * json_array_get_value(const JSON_Array *array, size_t index) { |
---|
1005 | if (index >= json_array_get_count(array)) |
---|
1006 | return NULL; |
---|
1007 | return array->items[index]; |
---|
1008 | } |
---|
1009 | |
---|
1010 | const char * json_array_get_string(const JSON_Array *array, size_t index) { |
---|
1011 | return json_value_get_string(json_array_get_value(array, index)); |
---|
1012 | } |
---|
1013 | |
---|
1014 | jint json_array_get_integer(const JSON_Array *array, size_t index) { |
---|
1015 | return json_value_get_integer(json_array_get_value(array, index)); |
---|
1016 | } |
---|
1017 | |
---|
1018 | double json_array_get_number(const JSON_Array *array, size_t index) { |
---|
1019 | return json_value_get_number(json_array_get_value(array, index)); |
---|
1020 | } |
---|
1021 | |
---|
1022 | JSON_Object * json_array_get_object(const JSON_Array *array, size_t index) { |
---|
1023 | return json_value_get_object(json_array_get_value(array, index)); |
---|
1024 | } |
---|
1025 | |
---|
1026 | JSON_Array * json_array_get_array(const JSON_Array *array, size_t index) { |
---|
1027 | return json_value_get_array(json_array_get_value(array, index)); |
---|
1028 | } |
---|
1029 | |
---|
1030 | int json_array_get_boolean(const JSON_Array *array, size_t index) { |
---|
1031 | return json_value_get_boolean(json_array_get_value(array, index)); |
---|
1032 | } |
---|
1033 | |
---|
1034 | size_t json_array_get_count(const JSON_Array *array) { |
---|
1035 | return array ? array->count : 0; |
---|
1036 | } |
---|
1037 | |
---|
1038 | /* JSON Value API */ |
---|
1039 | JSON_Value_Type json_value_get_type(const JSON_Value *value) { |
---|
1040 | return value ? value->type : JSONError; |
---|
1041 | } |
---|
1042 | |
---|
1043 | JSON_Object * json_value_get_object(const JSON_Value *value) { |
---|
1044 | return json_value_get_type(value) == JSONObject ? value->value.object : NULL; |
---|
1045 | } |
---|
1046 | |
---|
1047 | JSON_Array * json_value_get_array(const JSON_Value *value) { |
---|
1048 | return json_value_get_type(value) == JSONArray ? value->value.array : NULL; |
---|
1049 | } |
---|
1050 | |
---|
1051 | const char * json_value_get_string(const JSON_Value *value) { |
---|
1052 | return json_value_get_type(value) == JSONString ? value->value.string : NULL; |
---|
1053 | } |
---|
1054 | |
---|
1055 | jint json_value_get_integer(const JSON_Value *value) { |
---|
1056 | if (json_value_get_type(value) == JSONNumber) { |
---|
1057 | return value->value.number; |
---|
1058 | } else if (json_value_get_type(value) == JSONInteger) { |
---|
1059 | return value->value.integer; |
---|
1060 | } else { |
---|
1061 | return 0; |
---|
1062 | } |
---|
1063 | } |
---|
1064 | |
---|
1065 | double json_value_get_number(const JSON_Value *value) { |
---|
1066 | if (json_value_get_type(value) == JSONNumber) { |
---|
1067 | return value->value.number; |
---|
1068 | } else if (json_value_get_type(value) == JSONInteger) { |
---|
1069 | return value->value.integer; |
---|
1070 | } else { |
---|
1071 | return 0; |
---|
1072 | } |
---|
1073 | } |
---|
1074 | |
---|
1075 | int json_value_get_boolean(const JSON_Value *value) { |
---|
1076 | return json_value_get_type(value) == JSONBoolean ? value->value.boolean : -1; |
---|
1077 | } |
---|
1078 | |
---|
1079 | void json_value_free(JSON_Value *value) { |
---|
1080 | switch (json_value_get_type(value)) { |
---|
1081 | case JSONObject: |
---|
1082 | json_object_free(value->value.object); |
---|
1083 | break; |
---|
1084 | case JSONString: |
---|
1085 | if (value->value.string) { PARSON_FREE(value->value.string); } |
---|
1086 | break; |
---|
1087 | case JSONArray: |
---|
1088 | json_array_free(value->value.array); |
---|
1089 | break; |
---|
1090 | default: |
---|
1091 | break; |
---|
1092 | } |
---|
1093 | PARSON_FREE(value); |
---|
1094 | } |
---|
1095 | |
---|
1096 | JSON_Value * json_value_init_object(void) { |
---|
1097 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1098 | if (!new_value) |
---|
1099 | return NULL; |
---|
1100 | new_value->type = JSONObject; |
---|
1101 | new_value->value.object = json_object_init(); |
---|
1102 | if (!new_value->value.object) { |
---|
1103 | PARSON_FREE(new_value); |
---|
1104 | return NULL; |
---|
1105 | } |
---|
1106 | return new_value; |
---|
1107 | } |
---|
1108 | |
---|
1109 | JSON_Value * json_value_init_array(void) { |
---|
1110 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1111 | if (!new_value) |
---|
1112 | return NULL; |
---|
1113 | new_value->type = JSONArray; |
---|
1114 | new_value->value.array = json_array_init(); |
---|
1115 | if (!new_value->value.array) { |
---|
1116 | PARSON_FREE(new_value); |
---|
1117 | return NULL; |
---|
1118 | } |
---|
1119 | return new_value; |
---|
1120 | } |
---|
1121 | |
---|
1122 | JSON_Value * json_value_init_string(const char *string) { |
---|
1123 | char *copy = NULL; |
---|
1124 | JSON_Value *value; |
---|
1125 | size_t string_len = 0; |
---|
1126 | if (string == NULL) |
---|
1127 | return NULL; |
---|
1128 | string_len = strlen(string); |
---|
1129 | if (!is_valid_utf8(string, string_len)) |
---|
1130 | return NULL; |
---|
1131 | copy = parson_strndup(string, string_len); |
---|
1132 | if (copy == NULL) |
---|
1133 | return NULL; |
---|
1134 | value = json_value_init_string_no_copy(copy); |
---|
1135 | if (value == NULL) |
---|
1136 | PARSON_FREE(copy); |
---|
1137 | return value; |
---|
1138 | } |
---|
1139 | |
---|
1140 | JSON_Value * json_value_init_integer(jint number) { |
---|
1141 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1142 | if (!new_value) |
---|
1143 | return NULL; |
---|
1144 | new_value->type = JSONInteger; |
---|
1145 | new_value->value.integer = number; |
---|
1146 | return new_value; |
---|
1147 | } |
---|
1148 | |
---|
1149 | JSON_Value * json_value_init_number(double number) { |
---|
1150 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1151 | if (!new_value) |
---|
1152 | return NULL; |
---|
1153 | new_value->type = JSONNumber; |
---|
1154 | new_value->value.number = number; |
---|
1155 | return new_value; |
---|
1156 | } |
---|
1157 | |
---|
1158 | JSON_Value * json_value_init_boolean(int boolean) { |
---|
1159 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1160 | if (!new_value) |
---|
1161 | return NULL; |
---|
1162 | new_value->type = JSONBoolean; |
---|
1163 | new_value->value.boolean = boolean ? 1 : 0; |
---|
1164 | return new_value; |
---|
1165 | } |
---|
1166 | |
---|
1167 | JSON_Value * json_value_init_null(void) { |
---|
1168 | JSON_Value *new_value = (JSON_Value*)PARSON_MALLOC(sizeof(JSON_Value)); |
---|
1169 | if (!new_value) |
---|
1170 | return NULL; |
---|
1171 | new_value->type = JSONNull; |
---|
1172 | return new_value; |
---|
1173 | } |
---|
1174 | |
---|
1175 | JSON_Value * json_value_deep_copy(const JSON_Value *value) { |
---|
1176 | size_t i = 0; |
---|
1177 | JSON_Value *return_value = NULL, *temp_value_copy = NULL, *temp_value = NULL; |
---|
1178 | const char *temp_string = NULL, *temp_string_copy = NULL, *temp_key = NULL; |
---|
1179 | JSON_Array *temp_array = NULL, *temp_array_copy = NULL; |
---|
1180 | JSON_Object *temp_object = NULL, *temp_object_copy = NULL; |
---|
1181 | |
---|
1182 | switch (json_value_get_type(value)) { |
---|
1183 | case JSONArray: |
---|
1184 | temp_array = json_value_get_array(value); |
---|
1185 | return_value = json_value_init_array(); |
---|
1186 | if (return_value == NULL) |
---|
1187 | return NULL; |
---|
1188 | temp_array_copy = json_value_get_array(return_value); |
---|
1189 | for (i = 0; i < json_array_get_count(temp_array); i++) { |
---|
1190 | temp_value = json_array_get_value(temp_array, i); |
---|
1191 | temp_value_copy = json_value_deep_copy(temp_value); |
---|
1192 | if (temp_value_copy == NULL) { |
---|
1193 | json_value_free(return_value); |
---|
1194 | return NULL; |
---|
1195 | } |
---|
1196 | if (json_array_add(temp_array_copy, temp_value_copy) == JSONFailure) { |
---|
1197 | json_value_free(return_value); |
---|
1198 | json_value_free(temp_value_copy); |
---|
1199 | return NULL; |
---|
1200 | } |
---|
1201 | } |
---|
1202 | return return_value; |
---|
1203 | case JSONObject: |
---|
1204 | temp_object = json_value_get_object(value); |
---|
1205 | return_value = json_value_init_object(); |
---|
1206 | if (return_value == NULL) |
---|
1207 | return NULL; |
---|
1208 | temp_object_copy = json_value_get_object(return_value); |
---|
1209 | for (i = 0; i < json_object_get_count(temp_object); i++) { |
---|
1210 | temp_key = json_object_get_name(temp_object, i); |
---|
1211 | temp_value = json_object_get_value(temp_object, temp_key); |
---|
1212 | temp_value_copy = json_value_deep_copy(temp_value); |
---|
1213 | if (temp_value_copy == NULL) { |
---|
1214 | json_value_free(return_value); |
---|
1215 | return NULL; |
---|
1216 | } |
---|
1217 | if (json_object_add(temp_object_copy, temp_key, temp_value_copy) == JSONFailure) { |
---|
1218 | json_value_free(return_value); |
---|
1219 | json_value_free(temp_value_copy); |
---|
1220 | return NULL; |
---|
1221 | } |
---|
1222 | } |
---|
1223 | return return_value; |
---|
1224 | case JSONBoolean: |
---|
1225 | return json_value_init_boolean(json_value_get_boolean(value)); |
---|
1226 | case JSONInteger: |
---|
1227 | return json_value_init_integer(json_value_get_integer(value)); |
---|
1228 | case JSONNumber: |
---|
1229 | return json_value_init_number(json_value_get_number(value)); |
---|
1230 | case JSONString: |
---|
1231 | temp_string = json_value_get_string(value); |
---|
1232 | temp_string_copy = parson_strdup(temp_string); |
---|
1233 | if (temp_string_copy == NULL) |
---|
1234 | return NULL; |
---|
1235 | return_value = json_value_init_string_no_copy(temp_string_copy); |
---|
1236 | if (return_value == NULL) |
---|
1237 | PARSON_FREE(temp_string_copy); |
---|
1238 | return return_value; |
---|
1239 | case JSONNull: |
---|
1240 | return json_value_init_null(); |
---|
1241 | case JSONError: |
---|
1242 | return NULL; |
---|
1243 | default: |
---|
1244 | return NULL; |
---|
1245 | } |
---|
1246 | } |
---|
1247 | |
---|
1248 | size_t json_serialization_size(const JSON_Value *value) { |
---|
1249 | char buf[1100]; /* recursively allocating buffer on stack is a bad idea, so let's do it only once */ |
---|
1250 | return json_serialization_size_r(value, buf) + 1; |
---|
1251 | } |
---|
1252 | |
---|
1253 | JSON_Status json_serialize_to_buffer(const JSON_Value *value, char *buf, size_t buf_size_in_bytes) { |
---|
1254 | char *serialization_result = NULL; |
---|
1255 | size_t needed_size_in_bytes = json_serialization_size(value); |
---|
1256 | if (buf_size_in_bytes < needed_size_in_bytes) { |
---|
1257 | return JSONFailure; |
---|
1258 | } |
---|
1259 | serialization_result = json_serialize_to_buffer_r(value, buf); |
---|
1260 | if(serialization_result == NULL) |
---|
1261 | return JSONFailure; |
---|
1262 | return JSONSuccess; |
---|
1263 | } |
---|
1264 | |
---|
1265 | JSON_Status json_serialize_to_file(const JSON_Value *value, const char *filename) { |
---|
1266 | JSON_Status return_code = JSONSuccess; |
---|
1267 | FILE *fp = NULL; |
---|
1268 | char *serialized_string = json_serialize_to_string(value); |
---|
1269 | if (serialized_string == NULL) { |
---|
1270 | return JSONFailure; |
---|
1271 | } |
---|
1272 | fp = fopen (filename, "w"); |
---|
1273 | if (fp != NULL) { |
---|
1274 | if (fputs (serialized_string, fp) == EOF) { |
---|
1275 | return_code = JSONFailure; |
---|
1276 | } |
---|
1277 | if (fclose (fp) == EOF) { |
---|
1278 | return_code = JSONFailure; |
---|
1279 | } |
---|
1280 | } |
---|
1281 | json_free_serialized_string(serialized_string); |
---|
1282 | return return_code; |
---|
1283 | } |
---|
1284 | |
---|
1285 | char * json_serialize_to_string(const JSON_Value *value) { |
---|
1286 | JSON_Status serialization_result = JSONFailure; |
---|
1287 | size_t buf_size_bytes = json_serialization_size(value); |
---|
1288 | char *buf = (char*)PARSON_MALLOC(buf_size_bytes); |
---|
1289 | if (buf == NULL) |
---|
1290 | return NULL; |
---|
1291 | serialization_result = json_serialize_to_buffer(value, buf, buf_size_bytes); |
---|
1292 | if (serialization_result == JSONFailure) { |
---|
1293 | json_free_serialized_string(buf); |
---|
1294 | return NULL; |
---|
1295 | } |
---|
1296 | return buf; |
---|
1297 | } |
---|
1298 | |
---|
1299 | void json_free_serialized_string(char *string) { |
---|
1300 | PARSON_FREE(string); |
---|
1301 | } |
---|
1302 | |
---|
1303 | JSON_Status json_array_remove(JSON_Array *array, size_t ix) { |
---|
1304 | size_t last_element_ix = 0; |
---|
1305 | if (array == NULL || ix >= json_array_get_count(array)) { |
---|
1306 | return JSONFailure; |
---|
1307 | } |
---|
1308 | last_element_ix = json_array_get_count(array) - 1; |
---|
1309 | json_value_free(json_array_get_value(array, ix)); |
---|
1310 | array->count -= 1; |
---|
1311 | if (ix != last_element_ix) /* Replace value with one from the end of array */ |
---|
1312 | array->items[ix] = json_array_get_value(array, last_element_ix); |
---|
1313 | return JSONSuccess; |
---|
1314 | } |
---|
1315 | |
---|
1316 | JSON_Status json_array_replace_value(JSON_Array *array, size_t ix, JSON_Value *value) { |
---|
1317 | if (array == NULL || value == NULL || ix >= json_array_get_count(array)) { |
---|
1318 | return JSONFailure; |
---|
1319 | } |
---|
1320 | json_value_free(json_array_get_value(array, ix)); |
---|
1321 | array->items[ix] = value; |
---|
1322 | return JSONSuccess; |
---|
1323 | } |
---|
1324 | |
---|
1325 | JSON_Status json_array_replace_string(JSON_Array *array, size_t i, const char* string) { |
---|
1326 | JSON_Value *value = json_value_init_string(string); |
---|
1327 | if (value == NULL) |
---|
1328 | return JSONFailure; |
---|
1329 | if (json_array_replace_value(array, i, value) == JSONFailure) { |
---|
1330 | json_value_free(value); |
---|
1331 | return JSONFailure; |
---|
1332 | } |
---|
1333 | return JSONSuccess; |
---|
1334 | } |
---|
1335 | |
---|
1336 | JSON_Status json_array_replace_integer(JSON_Array *array, size_t i, jint integer) { |
---|
1337 | JSON_Value *value = json_value_init_integer(integer); |
---|
1338 | if (value == NULL) |
---|
1339 | return JSONFailure; |
---|
1340 | if (json_array_replace_value(array, i, value) == JSONFailure) { |
---|
1341 | json_value_free(value); |
---|
1342 | return JSONFailure; |
---|
1343 | } |
---|
1344 | return JSONSuccess; |
---|
1345 | } |
---|
1346 | |
---|
1347 | JSON_Status json_array_replace_number(JSON_Array *array, size_t i, double number) { |
---|
1348 | JSON_Value *value = json_value_init_number(number); |
---|
1349 | if (value == NULL) |
---|
1350 | return JSONFailure; |
---|
1351 | if (json_array_replace_value(array, i, value) == JSONFailure) { |
---|
1352 | json_value_free(value); |
---|
1353 | return JSONFailure; |
---|
1354 | } |
---|
1355 | return JSONSuccess; |
---|
1356 | } |
---|
1357 | |
---|
1358 | JSON_Status json_array_replace_boolean(JSON_Array *array, size_t i, int boolean) { |
---|
1359 | JSON_Value *value = json_value_init_boolean(boolean); |
---|
1360 | if (value == NULL) |
---|
1361 | return JSONFailure; |
---|
1362 | if (json_array_replace_value(array, i, value) == JSONFailure) { |
---|
1363 | json_value_free(value); |
---|
1364 | return JSONFailure; |
---|
1365 | } |
---|
1366 | return JSONSuccess; |
---|
1367 | } |
---|
1368 | |
---|
1369 | JSON_Status json_array_replace_null(JSON_Array *array, size_t i) { |
---|
1370 | JSON_Value *value = json_value_init_null(); |
---|
1371 | if (value == NULL) |
---|
1372 | return JSONFailure; |
---|
1373 | if (json_array_replace_value(array, i, value) == JSONFailure) { |
---|
1374 | json_value_free(value); |
---|
1375 | return JSONFailure; |
---|
1376 | } |
---|
1377 | return JSONSuccess; |
---|
1378 | } |
---|
1379 | |
---|
1380 | JSON_Status json_array_clear(JSON_Array *array) { |
---|
1381 | size_t i = 0; |
---|
1382 | if (array == NULL) |
---|
1383 | return JSONFailure; |
---|
1384 | for (i = 0; i < json_array_get_count(array); i++) { |
---|
1385 | json_value_free(json_array_get_value(array, i)); |
---|
1386 | } |
---|
1387 | array->count = 0; |
---|
1388 | return JSONSuccess; |
---|
1389 | } |
---|
1390 | |
---|
1391 | JSON_Status json_array_append_value(JSON_Array *array, JSON_Value *value) { |
---|
1392 | if (array == NULL || value == NULL) |
---|
1393 | return JSONFailure; |
---|
1394 | return json_array_add(array, value); |
---|
1395 | } |
---|
1396 | |
---|
1397 | JSON_Status json_array_append_string(JSON_Array *array, const char *string) { |
---|
1398 | JSON_Value *value = json_value_init_string(string); |
---|
1399 | if (value == NULL) |
---|
1400 | return JSONFailure; |
---|
1401 | if (json_array_append_value(array, value) == JSONFailure) { |
---|
1402 | json_value_free(value); |
---|
1403 | return JSONFailure; |
---|
1404 | } |
---|
1405 | return JSONSuccess; |
---|
1406 | } |
---|
1407 | |
---|
1408 | JSON_Status json_array_append_integer(JSON_Array *array, jint integer) { |
---|
1409 | JSON_Value *value = json_value_init_integer(integer); |
---|
1410 | if (value == NULL) |
---|
1411 | return JSONFailure; |
---|
1412 | if (json_array_append_value(array, value) == JSONFailure) { |
---|
1413 | json_value_free(value); |
---|
1414 | return JSONFailure; |
---|
1415 | } |
---|
1416 | return JSONSuccess; |
---|
1417 | } |
---|
1418 | |
---|
1419 | JSON_Status json_array_append_number(JSON_Array *array, double number) { |
---|
1420 | JSON_Value *value = json_value_init_number(number); |
---|
1421 | if (value == NULL) |
---|
1422 | return JSONFailure; |
---|
1423 | if (json_array_append_value(array, value) == JSONFailure) { |
---|
1424 | json_value_free(value); |
---|
1425 | return JSONFailure; |
---|
1426 | } |
---|
1427 | return JSONSuccess; |
---|
1428 | } |
---|
1429 | |
---|
1430 | JSON_Status json_array_append_boolean(JSON_Array *array, int boolean) { |
---|
1431 | JSON_Value *value = json_value_init_boolean(boolean); |
---|
1432 | if (value == NULL) |
---|
1433 | return JSONFailure; |
---|
1434 | if (json_array_append_value(array, value) == JSONFailure) { |
---|
1435 | json_value_free(value); |
---|
1436 | return JSONFailure; |
---|
1437 | } |
---|
1438 | return JSONSuccess; |
---|
1439 | } |
---|
1440 | |
---|
1441 | JSON_Status json_array_append_null(JSON_Array *array) { |
---|
1442 | JSON_Value *value = json_value_init_null(); |
---|
1443 | if (value == NULL) |
---|
1444 | return JSONFailure; |
---|
1445 | if (json_array_append_value(array, value) == JSONFailure) { |
---|
1446 | json_value_free(value); |
---|
1447 | return JSONFailure; |
---|
1448 | } |
---|
1449 | return JSONSuccess; |
---|
1450 | } |
---|
1451 | |
---|
1452 | JSON_Status json_object_set_value(JSON_Object *object, const char *name, JSON_Value *value) { |
---|
1453 | size_t i = 0; |
---|
1454 | JSON_Value *old_value; |
---|
1455 | if (object == NULL || name == NULL || value == NULL) |
---|
1456 | return JSONFailure; |
---|
1457 | old_value = json_object_get_value(object, name); |
---|
1458 | if (old_value != NULL) { /* free and overwrite old value */ |
---|
1459 | json_value_free(old_value); |
---|
1460 | for (i = 0; i < json_object_get_count(object); i++) { |
---|
1461 | if (strcmp(object->names[i], name) == 0) { |
---|
1462 | object->values[i] = value; |
---|
1463 | return JSONSuccess; |
---|
1464 | } |
---|
1465 | } |
---|
1466 | } |
---|
1467 | /* add new key value pair */ |
---|
1468 | return json_object_add(object, name, value); |
---|
1469 | } |
---|
1470 | |
---|
1471 | JSON_Status json_object_set_string(JSON_Object *object, const char *name, const char *string) { |
---|
1472 | return json_object_set_value(object, name, json_value_init_string(string)); |
---|
1473 | } |
---|
1474 | |
---|
1475 | JSON_Status json_object_set_integer(JSON_Object *object, const char *name, jint integer) { |
---|
1476 | return json_object_set_value(object, name, json_value_init_integer(integer)); |
---|
1477 | } |
---|
1478 | |
---|
1479 | JSON_Status json_object_set_number(JSON_Object *object, const char *name, double number) { |
---|
1480 | return json_object_set_value(object, name, json_value_init_number(number)); |
---|
1481 | } |
---|
1482 | |
---|
1483 | JSON_Status json_object_set_boolean(JSON_Object *object, const char *name, int boolean) { |
---|
1484 | return json_object_set_value(object, name, json_value_init_boolean(boolean)); |
---|
1485 | } |
---|
1486 | |
---|
1487 | JSON_Status json_object_set_null(JSON_Object *object, const char *name) { |
---|
1488 | return json_object_set_value(object, name, json_value_init_null()); |
---|
1489 | } |
---|
1490 | |
---|
1491 | JSON_Status json_object_dotset_value(JSON_Object *object, const char *name, JSON_Value *value) { |
---|
1492 | const char *dot_pos = NULL; |
---|
1493 | const char *current_name = NULL; |
---|
1494 | JSON_Object *temp_obj = NULL; |
---|
1495 | JSON_Value *new_value = NULL; |
---|
1496 | if (value == NULL || name == NULL || value == NULL) |
---|
1497 | return JSONFailure; |
---|
1498 | dot_pos = strchr(name, '.'); |
---|
1499 | if (dot_pos == NULL) { |
---|
1500 | return json_object_set_value(object, name, value); |
---|
1501 | } else { |
---|
1502 | current_name = parson_strndup(name, dot_pos - name); |
---|
1503 | temp_obj = json_object_get_object(object, current_name); |
---|
1504 | if (temp_obj == NULL) { |
---|
1505 | new_value = json_value_init_object(); |
---|
1506 | if (new_value == NULL) { |
---|
1507 | PARSON_FREE(current_name); |
---|
1508 | return JSONFailure; |
---|
1509 | } |
---|
1510 | if (json_object_add(object, current_name, new_value) == JSONFailure) { |
---|
1511 | json_value_free(new_value); |
---|
1512 | PARSON_FREE(current_name); |
---|
1513 | return JSONFailure; |
---|
1514 | } |
---|
1515 | temp_obj = json_object_get_object(object, current_name); |
---|
1516 | } |
---|
1517 | PARSON_FREE(current_name); |
---|
1518 | return json_object_dotset_value(temp_obj, dot_pos + 1, value); |
---|
1519 | } |
---|
1520 | } |
---|
1521 | |
---|
1522 | JSON_Status json_object_dotset_string(JSON_Object *object, const char *name, const char *string) { |
---|
1523 | JSON_Value *value = json_value_init_string(string); |
---|
1524 | if (value == NULL) |
---|
1525 | return JSONFailure; |
---|
1526 | if (json_object_dotset_value(object, name, value) == JSONFailure) { |
---|
1527 | json_value_free(value); |
---|
1528 | return JSONFailure; |
---|
1529 | } |
---|
1530 | return JSONSuccess; |
---|
1531 | } |
---|
1532 | |
---|
1533 | JSON_Status json_object_dotset_integer(JSON_Object *object, const char *name, jint integer) { |
---|
1534 | JSON_Value *value = json_value_init_integer(integer); |
---|
1535 | if (value == NULL) |
---|
1536 | return JSONFailure; |
---|
1537 | if (json_object_dotset_value(object, name, value) == JSONFailure) { |
---|
1538 | json_value_free(value); |
---|
1539 | return JSONFailure; |
---|
1540 | } |
---|
1541 | return JSONSuccess; |
---|
1542 | } |
---|
1543 | |
---|
1544 | JSON_Status json_object_dotset_number(JSON_Object *object, const char *name, double number) { |
---|
1545 | JSON_Value *value = json_value_init_number(number); |
---|
1546 | if (value == NULL) |
---|
1547 | return JSONFailure; |
---|
1548 | if (json_object_dotset_value(object, name, value) == JSONFailure) { |
---|
1549 | json_value_free(value); |
---|
1550 | return JSONFailure; |
---|
1551 | } |
---|
1552 | return JSONSuccess; |
---|
1553 | } |
---|
1554 | |
---|
1555 | JSON_Status json_object_dotset_boolean(JSON_Object *object, const char *name, int boolean) { |
---|
1556 | JSON_Value *value = json_value_init_boolean(boolean); |
---|
1557 | if (value == NULL) |
---|
1558 | return JSONFailure; |
---|
1559 | if (json_object_dotset_value(object, name, value) == JSONFailure) { |
---|
1560 | json_value_free(value); |
---|
1561 | return JSONFailure; |
---|
1562 | } |
---|
1563 | return JSONSuccess; |
---|
1564 | } |
---|
1565 | |
---|
1566 | JSON_Status json_object_dotset_null(JSON_Object *object, const char *name) { |
---|
1567 | JSON_Value *value = json_value_init_null(); |
---|
1568 | if (value == NULL) |
---|
1569 | return JSONFailure; |
---|
1570 | if (json_object_dotset_value(object, name, value) == JSONFailure) { |
---|
1571 | json_value_free(value); |
---|
1572 | return JSONFailure; |
---|
1573 | } |
---|
1574 | return JSONSuccess; |
---|
1575 | } |
---|
1576 | |
---|
1577 | JSON_Status json_object_remove(JSON_Object *object, const char *name) { |
---|
1578 | size_t i = 0, last_item_index = 0; |
---|
1579 | if (object == NULL || json_object_get_value(object, name) == NULL) |
---|
1580 | return JSONFailure; |
---|
1581 | last_item_index = json_object_get_count(object) - 1; |
---|
1582 | for (i = 0; i < json_object_get_count(object); i++) { |
---|
1583 | if (strcmp(object->names[i], name) == 0) { |
---|
1584 | PARSON_FREE(object->names[i]); |
---|
1585 | json_value_free(object->values[i]); |
---|
1586 | if (i != last_item_index) { /* Replace key value pair with one from the end */ |
---|
1587 | object->names[i] = object->names[last_item_index]; |
---|
1588 | object->values[i] = object->values[last_item_index]; |
---|
1589 | } |
---|
1590 | object->count -= 1; |
---|
1591 | return JSONSuccess; |
---|
1592 | } |
---|
1593 | } |
---|
1594 | return JSONFailure; /* No execution path should end here */ |
---|
1595 | } |
---|
1596 | |
---|
1597 | JSON_Status json_object_dotremove(JSON_Object *object, const char *name) { |
---|
1598 | const char *dot_pos = strchr(name, '.'); |
---|
1599 | const char *current_name = NULL; |
---|
1600 | JSON_Object *temp_obj = NULL; |
---|
1601 | if (dot_pos == NULL) { |
---|
1602 | return json_object_remove(object, name); |
---|
1603 | } else { |
---|
1604 | current_name = parson_strndup(name, dot_pos - name); |
---|
1605 | temp_obj = json_object_get_object(object, current_name); |
---|
1606 | if (temp_obj == NULL) { |
---|
1607 | PARSON_FREE(current_name); |
---|
1608 | return JSONFailure; |
---|
1609 | } |
---|
1610 | PARSON_FREE(current_name); |
---|
1611 | return json_object_dotremove(temp_obj, dot_pos + 1); |
---|
1612 | } |
---|
1613 | } |
---|
1614 | |
---|
1615 | JSON_Status json_object_clear(JSON_Object *object) { |
---|
1616 | size_t i = 0; |
---|
1617 | if (object == NULL) { |
---|
1618 | return JSONFailure; |
---|
1619 | } |
---|
1620 | for (i = 0; i < json_object_get_count(object); i++) { |
---|
1621 | PARSON_FREE(object->names[i]); |
---|
1622 | json_value_free(object->values[i]); |
---|
1623 | } |
---|
1624 | object->count = 0; |
---|
1625 | return JSONSuccess; |
---|
1626 | } |
---|
1627 | |
---|
1628 | JSON_Status json_validate(const JSON_Value *schema, const JSON_Value *value) { |
---|
1629 | JSON_Value *temp_schema_value = NULL, *temp_value = NULL; |
---|
1630 | JSON_Array *schema_array = NULL, *value_array = NULL; |
---|
1631 | JSON_Object *schema_object = NULL, *value_object = NULL; |
---|
1632 | JSON_Value_Type schema_type = JSONError, value_type = JSONError; |
---|
1633 | const char *key = NULL; |
---|
1634 | size_t i = 0, count = 0; |
---|
1635 | if (schema == NULL || value == NULL) |
---|
1636 | return JSONFailure; |
---|
1637 | schema_type = json_value_get_type(schema); |
---|
1638 | value_type = json_value_get_type(value); |
---|
1639 | if (schema_type != value_type && schema_type != JSONNull) /* null represents all values */ |
---|
1640 | return JSONFailure; |
---|
1641 | switch (schema_type) { |
---|
1642 | case JSONArray: |
---|
1643 | schema_array = json_value_get_array(schema); |
---|
1644 | value_array = json_value_get_array(value); |
---|
1645 | count = json_array_get_count(schema_array); |
---|
1646 | if (count == 0) |
---|
1647 | return JSONSuccess; /* Empty array allows all types */ |
---|
1648 | /* Get first value from array, rest is ignored */ |
---|
1649 | temp_schema_value = json_array_get_value(schema_array, 0); |
---|
1650 | for (i = 0; i < json_array_get_count(value_array); i++) { |
---|
1651 | temp_value = json_array_get_value(value_array, i); |
---|
1652 | if (json_validate(temp_schema_value, temp_value) == 0) { |
---|
1653 | return JSONFailure; |
---|
1654 | } |
---|
1655 | } |
---|
1656 | return JSONSuccess; |
---|
1657 | case JSONObject: |
---|
1658 | schema_object = json_value_get_object(schema); |
---|
1659 | value_object = json_value_get_object(value); |
---|
1660 | count = json_object_get_count(schema_object); |
---|
1661 | if (count == 0) |
---|
1662 | return JSONSuccess; /* Empty object allows all objects */ |
---|
1663 | else if (json_object_get_count(value_object) < count) |
---|
1664 | return JSONFailure; /* Tested object mustn't have less name-value pairs than schema */ |
---|
1665 | for (i = 0; i < count; i++) { |
---|
1666 | key = json_object_get_name(schema_object, i); |
---|
1667 | temp_schema_value = json_object_get_value(schema_object, key); |
---|
1668 | temp_value = json_object_get_value(value_object, key); |
---|
1669 | if (temp_value == NULL) |
---|
1670 | return JSONFailure; |
---|
1671 | if (json_validate(temp_schema_value, temp_value) == JSONFailure) |
---|
1672 | return JSONFailure; |
---|
1673 | } |
---|
1674 | return JSONSuccess; |
---|
1675 | case JSONString: case JSONInteger: case JSONNumber: case JSONBoolean: case JSONNull: |
---|
1676 | return JSONSuccess; /* equality already tested before switch */ |
---|
1677 | case JSONError: default: |
---|
1678 | return JSONFailure; |
---|
1679 | } |
---|
1680 | } |
---|
1681 | |
---|
1682 | JSON_Status json_value_equals(const JSON_Value *a, const JSON_Value *b) { |
---|
1683 | JSON_Object *a_object = NULL, *b_object = NULL; |
---|
1684 | JSON_Array *a_array = NULL, *b_array = NULL; |
---|
1685 | const char *a_string = NULL, *b_string = NULL; |
---|
1686 | const char *key = NULL; |
---|
1687 | size_t a_count = 0, b_count = 0, i = 0; |
---|
1688 | JSON_Value_Type a_type, b_type; |
---|
1689 | a_type = json_value_get_type(a); |
---|
1690 | b_type = json_value_get_type(b); |
---|
1691 | if (a_type != b_type) { |
---|
1692 | return 0; |
---|
1693 | } |
---|
1694 | switch (a_type) { |
---|
1695 | case JSONArray: |
---|
1696 | a_array = json_value_get_array(a); |
---|
1697 | b_array = json_value_get_array(b); |
---|
1698 | a_count = json_array_get_count(a_array); |
---|
1699 | b_count = json_array_get_count(b_array); |
---|
1700 | if (a_count != b_count) { |
---|
1701 | return 0; |
---|
1702 | } |
---|
1703 | for (i = 0; i < a_count; i++) { |
---|
1704 | if (!json_value_equals(json_array_get_value(a_array, i), |
---|
1705 | json_array_get_value(b_array, i))) { |
---|
1706 | return 0; |
---|
1707 | } |
---|
1708 | } |
---|
1709 | return 1; |
---|
1710 | case JSONObject: |
---|
1711 | a_object = json_value_get_object(a); |
---|
1712 | b_object = json_value_get_object(b); |
---|
1713 | a_count = json_object_get_count(a_object); |
---|
1714 | b_count = json_object_get_count(b_object); |
---|
1715 | if (a_count != b_count) { |
---|
1716 | return 0; |
---|
1717 | } |
---|
1718 | for (i = 0; i < a_count; i++) { |
---|
1719 | key = json_object_get_name(a_object, i); |
---|
1720 | if (!json_value_equals(json_object_get_value(a_object, key), |
---|
1721 | json_object_get_value(b_object, key))) { |
---|
1722 | return 0; |
---|
1723 | } |
---|
1724 | } |
---|
1725 | return 1; |
---|
1726 | case JSONString: |
---|
1727 | a_string = json_value_get_string(a); |
---|
1728 | b_string = json_value_get_string(b); |
---|
1729 | return strcmp(a_string, b_string) == 0; |
---|
1730 | case JSONBoolean: |
---|
1731 | return json_value_get_boolean(a) == json_value_get_boolean(b); |
---|
1732 | case JSONInteger: |
---|
1733 | return json_value_get_integer(a) == json_value_get_integer(b); |
---|
1734 | case JSONNumber: |
---|
1735 | return fabs(json_value_get_number(a) - json_value_get_number(b)) < 0.000001; /* EPSILON */ |
---|
1736 | case JSONError: |
---|
1737 | return 1; |
---|
1738 | case JSONNull: |
---|
1739 | return 1; |
---|
1740 | default: |
---|
1741 | return 1; |
---|
1742 | } |
---|
1743 | } |
---|
1744 | |
---|
1745 | JSON_Value_Type json_type(const JSON_Value *value) { |
---|
1746 | return json_value_get_type(value); |
---|
1747 | } |
---|
1748 | |
---|
1749 | JSON_Object * json_object (const JSON_Value *value) { |
---|
1750 | return json_value_get_object(value); |
---|
1751 | } |
---|
1752 | |
---|
1753 | JSON_Array * json_array (const JSON_Value *value) { |
---|
1754 | return json_value_get_array(value); |
---|
1755 | } |
---|
1756 | |
---|
1757 | const char * json_string (const JSON_Value *value) { |
---|
1758 | return json_value_get_string(value); |
---|
1759 | } |
---|
1760 | |
---|
1761 | jint json_integer (const JSON_Value *value) { |
---|
1762 | return json_value_get_integer(value); |
---|
1763 | } |
---|
1764 | |
---|
1765 | double json_number (const JSON_Value *value) { |
---|
1766 | return json_value_get_number(value); |
---|
1767 | } |
---|
1768 | |
---|
1769 | int json_boolean(const JSON_Value *value) { |
---|
1770 | return json_value_get_boolean(value); |
---|
1771 | } |
---|