1 | /* |
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2 | * Estonian ID card plugin for web browsers |
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3 | * |
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4 | * Copyright (C) 2010-2011 Codeborne <info@codeborne.com> |
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5 | * |
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6 | * This is free software; you can redistribute it and/or |
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7 | * modify it under the terms of the GNU Lesser General Public |
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8 | * License as published by the Free Software Foundation; either |
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9 | * version 2.1 of the License, or (at your option) any later version. |
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10 | * |
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11 | * This software is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 | * Lesser General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU Lesser General Public |
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17 | * License along with this library; if not, write to the Free Software |
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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19 | * |
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20 | */ |
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21 | |
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22 | #include <string.h> |
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23 | #include <stdlib.h> |
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24 | #include "esteid_json.h" |
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25 | |
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26 | int isEscapedSymbol(char c) { |
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27 | return strchr("\"\\\r\n\t", c) != NULL; |
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28 | } |
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29 | |
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30 | char *EstEID_jsonString(const char *src) { |
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31 | int specialSymbolCount = 0; |
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32 | char *s = (char *)src; |
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33 | while (*s) if (isEscapedSymbol(*(s++))) specialSymbolCount++; |
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34 | char *result = (char*)malloc(strlen(src) + specialSymbolCount + 1); |
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35 | s = (char *)src; |
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36 | char *r = result; |
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37 | while (*s) { |
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38 | if (isEscapedSymbol(*s)) *(r++) = '\\'; |
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39 | switch (*s) { |
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40 | case '\n' : *(r++) = 'n'; break; |
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41 | case '\r' : *(r++) = 'r'; break; |
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42 | case '\t' : *(r++) = 't'; break; |
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43 | default: *(r++) = *s; |
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44 | } |
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45 | s++; |
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46 | } |
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47 | *r = 0; |
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48 | return result; |
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49 | } |
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50 | |
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51 | char *EstEID_mapEntryToJson(struct EstEID_MapEntry entry) { |
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52 | char *k = EstEID_jsonString(entry.key); |
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53 | char *v = EstEID_jsonString(entry.value); |
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54 | char *result = (char *)malloc(strlen(k) + strlen(v) + 7); |
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55 | sprintf(result, "\"%s\": \"%s\"", k, v); |
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56 | free(k); |
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57 | free(v); |
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58 | return result; |
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59 | } |
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60 | |
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61 | char *EstEID_mapToJson(EstEID_Map map) { |
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62 | char *result = (char *)malloc(3); |
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63 | sprintf(result, "{"); |
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64 | while (map) { |
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65 | char *entry = EstEID_mapEntryToJson(*map); |
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66 | result = (char *)realloc(result, strlen(result) + strlen(entry) + 4); |
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67 | strcat(result, entry); |
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68 | free(entry); |
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69 | if (map->next) strcat(result, ", "); |
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70 | map = map->next; |
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71 | } |
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72 | strcat(result, "}"); |
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73 | return result; |
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74 | } |
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75 | |
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