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added sketch for json loading

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This commit is contained in:
merlokk 2018-08-23 18:23:02 +03:00
commit ffee924db5
1 changed files with 65 additions and 20 deletions
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85
client/emv/cmdemv.c
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@ -300,25 +300,70 @@ int UsageCmdHFEMVExec(void) {
#define TLV_ADD(tag, value)( tlvdb_add(tlvRoot, tlvdb_fixed(tag, sizeof(value) - 1, (const unsigned char *)value)) )
#define dreturn(n) {free(pdol_data_tlv);tlvdb_free(tlvSelect);tlvdb_free(tlvRoot);DropField();return n;}
void ParamLoadFromJson() {
json_t *root;
json_error_t error;
bool ParamLoadFromJson() {
json_t *root;
json_error_t error;
// TODO: add search current path
root = json_load_file("./emv/defparams.json", 0, &error);
if (!root) {
PrintAndLog("Load params: json error on line %d: %s", error.line, error.text);
return false;
}
char *text = "{\"json\":22}";
if (!json_is_array(root)) {
PrintAndLog("Load params: Invalid json format. root must be array.");
return false;
}
PrintAndLog("Load params: json OK");
for(int i = 0; i < json_array_size(root); i++) {
json_t *data, *jtype, *jlength, *jvalue;
root = json_loads(text, 0, &error);
data = json_array_get(root, i);
if(!json_is_object(data))
{
PrintAndLog("Load params: data [%d] is not an object", i + 1);
json_decref(root);
return false;
}
jtype = json_object_get(data, "type");
if(!json_is_string(jtype))
{
PrintAndLog("Load params: data [%d] type is not a string", i + 1);
json_decref(root);
return false;
}
if (root) {
PrintAndLog("json OK");
return; //root;
} else {
PrintAndLog("json error on line %d: %s", error.line, error.text);
return; //(json_t *)0;
}
jvalue = json_object_get(data, "value");
if(!json_is_string(jvalue))
{
PrintAndLog("Load params: data [%d] value is not a string", i + 1);
json_decref(root);
return false;
}
jlength = json_object_get(data, "length");
if(!json_is_number(jlength))
{
PrintAndLog("Load params: data [%d] length is not a number", i + 1);
json_decref(root);
return false;
}
}
json_decref(root);
return true;
}
int CmdHFEMVExec(const char *cmd) {
bool activateField = false;
bool showAPDU = false;
@ -455,7 +500,7 @@ int CmdHFEMVExec(const char *cmd) {
ParamLoadFromJson();
//9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
//9F66:(Terminal Transaction Qualifiers (TTQ)) len:4
char *qVSDC = "\x26\x00\x00\x00";
if (GenACGPO) {
qVSDC = "\x26\x80\x00\x00";
@ -479,16 +524,16 @@ int CmdHFEMVExec(const char *cmd) {
break;
}
//9F02:(Amount, authorized (Numeric)) len:6
//9F02:(Amount, authorized (Numeric)) len:6
TLV_ADD(0x9F02, "\x00\x00\x00\x00\x01\x00");
//9F1A:(Terminal Country Code) len:2
//9F1A:(Terminal Country Code) len:2
TLV_ADD(0x9F1A, "ru");
//5F2A:(Transaction Currency Code) len:2
// USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999
//5F2A:(Transaction Currency Code) len:2
// USD 840, EUR 978, RUR 810, RUB 643, RUR 810(old), UAH 980, AZN 031, n/a 999
TLV_ADD(0x5F2A, "\x09\x80");
//9A:(Transaction Date) len:3
//9A:(Transaction Date) len:3
TLV_ADD(0x9A, "\x00\x00\x00");
//9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash
//9C:(Transaction Type) len:1 | 00 => Goods and service #01 => Cash
TLV_ADD(0x9C, "\x00");
// 9F37 Unpredictable Number len:4
TLV_ADD(0x9F37, "\x01\x02\x03\x04");