Open-ILS/src/apachemods/json_xml.c

   1 #include "json_xml.h"
   2 #include "fieldmapper_lookup.h"
   3
   4 void _rest_xml_output(growing_buffer*, jsonObject*, char*, int, int);
   5 char* _escape_xml (char*);
   6
   7 char* json_string_to_xml(char* content) {
   8         jsonObject * obj;
   9         growing_buffer * res_xml;
  10         char * output;
  11         int i;
  12
  13         obj = json_parse_string( content );
  14         res_xml = buffer_init(1024);
  15
  16         if (!obj)
  17                 return NULL;
  18
  19         buffer_add(res_xml, "<response>");
  20
  21         if(obj->type == JSON_ARRAY ) {
  22                 for( i = 0; i!= obj->size; i++ ) {
  23                         _rest_xml_output(res_xml, jsonObjectGetIndex(obj,i), NULL, 0,0);
  24                 }
  25         } else {
  26                 _rest_xml_output(res_xml, obj, NULL, 0,0);
  27         }
  28
  29         buffer_add(res_xml, "</response>");
  30
  31         output = buffer_data(res_xml);
  32         buffer_free(res_xml);
  33         jsonObjectFree(obj);
  34
  35         return output;
  36 }
  37
  38 char* _escape_xml (char* text) {
  39         char* out;
  40         growing_buffer* b = buffer_init(256);
  41         int len = strlen(text);
  42         int i;
  43         for (i = 0; i < len; i++) {
  44                 if (text[i] == '&')
  45                         buffer_add(b,"&amp;");
  46                 else if (text[i] == '<')
  47                         buffer_add(b,"&lt;");
  48                 else if (text[i] == '>')
  49                         buffer_add(b,"&gt;");
  50                 else
  51                         buffer_add_char(b,text[i]);
  52         }
  53         out = buffer_data(b);
  54         buffer_free(b);
  55         return out;
  56 }
  57
  58 void _rest_xml_output(growing_buffer* buf, jsonObject* obj, char * obj_class, int arr_index, int notag) {
  59         char * tag;
  60         int i;
  61
  62         if(!obj) return;
  63
  64         if (obj->classname)
  65                 notag = 1;
  66
  67         if(isFieldmapper(obj_class)) {
  68                 tag = fm_pton(obj_class,arr_index);
  69         } else if(obj_class) {
  70                 tag = strdup(obj_class);
  71         } else {
  72                 tag = strdup("datum");
  73         }
  74
  75
  76    /* add class hints if we have a class name */
  77    if(obj->classname) {
  78         if(obj->type == JSON_NULL) {
  79                         buffer_fadd(buf,"<%s><Object class_hint=\\\"%s\\\"/></%s>", tag, obj->classname, tag);
  80                         return;
  81                 } else {
  82                         buffer_fadd(buf,"<%s><Object class_hint=\\\"%s\\\">", tag, obj->classname);
  83                 }
  84         }
  85
  86
  87         /* now add the data */
  88         if(obj->type == JSON_NULL) {
  89                 if (!notag)
  90                         buffer_fadd(buf, "<%s/>",tag);
  91         } else if(obj->type == JSON_BOOL && obj->value.b) {
  92                 if (notag)
  93                         buffer_add(buf, "true");
  94                 else
  95                         buffer_fadd(buf, "<%s>true</%s>",tag,tag);
  96
  97         } else if(obj->type == JSON_BOOL && ! obj->value.b) {
  98                 if (notag)
  99                         buffer_add(buf, "false");
 100                 else
 101                         buffer_fadd(buf, "<%s>false</%s>",tag,tag);
 102
 103         } else if (obj->type == JSON_STRING) {
 104                 if (notag) {
 105                         char * t = _escape_xml(jsonObjectGetString(obj));
 106                         buffer_add(buf,t);
 107                         free(t);
 108                 } else {
 109                         char * t = _escape_xml(jsonObjectGetString(obj));
 110                         buffer_fadd(buf,"<%s>%s</%s>",tag,t,tag);
 111                         free(t);
 112                 }
 113
 114         } else if(obj->type == JSON_NUMBER) {
 115                 if (notag)
 116                         buffer_fadd(buf,"%lf",tag, jsonObjectGetNumber(obj),tag);
 117                 else
 118                         buffer_fadd(buf,"<%s>%lf</%s>",tag, jsonObjectGetNumber(obj),tag);
 119
 120
 121         } else if (obj->type == JSON_ARRAY) {
 122                 if (!notag) {
 123                         if(!isFieldmapper(obj_class))
 124                                 buffer_add(buf,"<array>");
 125                         else
 126                                 buffer_fadd(buf,"<%s>",tag);
 127                 }
 128
 129                 for( i = 0; i!= obj->size; i++ ) {
 130                         _rest_xml_output(buf, jsonObjectGetIndex(obj,i), obj->classname, i,0);
 131                 }
 132
 133                 if (!notag) {
 134                         if(!isFieldmapper(obj_class))
 135                                 buffer_add(buf,"</array>");
 136                         else
 137                                 buffer_fadd(buf,"</%s>",tag);
 138                 }
 139
 140         } else if (obj->type == JSON_HASH) {
 141
 142                 if (!notag) {
 143                         if(!obj_class)
 144                                 buffer_add(buf,"<hash>");
 145                         else
 146                                 buffer_fadd(buf,"<%s>",tag);
 147                 }
 148
 149                 jsonObjectIterator* itr = jsonNewObjectIterator(obj);
 150                 jsonObjectNode* tmp;
 151                 while( (tmp = jsonObjectIteratorNext(itr)) ) {
 152                         if (notag) {
 153                                 buffer_fadd(buf,"<%s>",tmp->key);
 154                         } else {
 155                                 buffer_add(buf,"<pair>");
 156                                 buffer_fadd(buf,"<key>%s</key><value>",tmp->key);
 157                         }
 158
 159                         _rest_xml_output(buf, tmp->item, NULL,0,notag);
 160
 161                         if (notag) {
 162                                 buffer_fadd(buf,"</%s>",tmp->key);
 163                         } else {
 164                                 buffer_add(buf,"</value></pair>");
 165                         }
 166                 }
 167                 jsonObjectIteratorFree(itr);
 168
 169                 if (!notag) {
 170                         if(!obj_class)
 171                                 buffer_add(buf,"</hash>");
 172                         else
 173                                 buffer_fadd(buf,"</%s>",tag);
 174                 }
 175
 176         }
 177
 178         if (obj->classname)
 179                 buffer_fadd(buf,"</Object></%s>",tag);
 180
 181         free(tag);
 182 }
 183