Variant HHVM_FUNCTION(json_encode, const Variant& value,
int64_t options /* = 0 */,
int64_t depth /* = 512 */) {
// Special case for resource since VariableSerializer does not take care of it
if (value.isResource()) {
json_set_last_error_code(json_error_codes::JSON_ERROR_UNSUPPORTED_TYPE);
if (options & k_JSON_PARTIAL_OUTPUT_ON_ERROR) {
return "null";
}
return false;
}
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
VariableSerializer vs(VariableSerializer::Type::JSON, options);
vs.setDepthLimit(depth);
String json = vs.serializeValue(value, !(options & k_JSON_FB_UNLIMITED));
if ((json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE) &&
!(options & k_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
return false;
}
return json;
}
Variant f_json_decode(const String& json, bool assoc /* = false */,
CVarRef options /* = 0 */) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if (json.empty()) {
return uninit_null();
}
int64_t json_options = options.toInt64();
if (options.isBoolean() && options.toBooleanVal()) {
json_options = k_JSON_FB_LOOSE;
}
const int64_t supported_options =
k_JSON_FB_LOOSE | k_JSON_FB_COLLECTIONS | k_JSON_FB_STABLE_MAPS;
Variant z;
if (JSON_parser(z, json.data(), json.size(), assoc,
(json_options & supported_options))) {
return z;
}
if (json.size() == 4) {
if (!strcasecmp(json.data(), "null")) return uninit_null();
if (!strcasecmp(json.data(), "true")) return true;
} else if (json.size() == 5 && !strcasecmp(json.data(), "false")) {
return false;
}
int64_t p;
double d;
DataType type = json->isNumericWithVal(p, d, 0);
if (type == KindOfInt64) {
return p;
} else if (type == KindOfDouble) {
return d;
}
char ch0 = json.charAt(0);
if (json.size() > 1 && ch0 == '"' && json.charAt(json.size() - 1) == '"') {
return json.substr(1, json.size() - 2);
}
if ((json_options & k_JSON_FB_LOOSE) && json.size() > 1 &&
ch0 == '\'' && json.charAt(json.size() - 1) == '\'') {
return json.substr(1, json.size() - 2);
}
if (ch0 == '{' || ch0 == '[') { /* invalid JSON string */
json_set_last_error_code(json_error_codes::JSON_ERROR_SYNTAX);
}
assert(json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE);
return uninit_null();
}
// Handles output of `json_encode` with fallback value for
// partial output on errors, and `false` otherwise.
Variant json_guard_error_result(const String& partial_error_output,
int64_t options /* = 0*/) {
int is_partial_output = options & k_JSON_PARTIAL_OUTPUT_ON_ERROR;
// Issue a warning on unsupported type in case of HH syntax.
if (json_get_last_error_code() ==
json_error_codes::JSON_ERROR_UNSUPPORTED_TYPE &&
RuntimeOption::EnableHipHopSyntax) {
// Unhandled case is always returned as `false`; for partial output
// we render "null" value.
raise_warning("json_encode(): type is unsupported, encoded as %s",
is_partial_output ? "null" : "false");
}
if (is_partial_output) {
return partial_error_output;
}
return false;
}
TypedValue HHVM_FUNCTION(json_encode, const Variant& value,
int64_t options, int64_t depth) {
// Special case for resource since VariableSerializer does not take care of it
if (value.isResource()) {
json_set_last_error_code(json_error_codes::JSON_ERROR_UNSUPPORTED_TYPE);
return tvReturn(json_guard_error_result("null", options));
}
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
VariableSerializer vs(VariableSerializer::Type::JSON, options);
vs.setDepthLimit(depth);
String json = vs.serializeValue(value, !(options & k_JSON_FB_UNLIMITED));
assertx(json.get() != nullptr);
if (UNLIKELY(StructuredLog::coinflip(RuntimeOption::EvalSerDesSampleRate))) {
StructuredLog::logSerDes("json", "ser", json, value);
}
if (json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE) {
return tvReturn(json_guard_error_result(json, options));
}
return tvReturn(std::move(json));
}
Variant f_json_decode(const String& json, bool assoc /* = false */,
CVarRef options /* = 0 */) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if (json.empty()) {
return uninit_null();
}
int64_t json_options = options.toInt64();
if (options.isBoolean() && options.toBooleanVal()) {
json_options = k_JSON_FB_LOOSE;
}
const int64_t supported_options =
k_JSON_FB_LOOSE | k_JSON_FB_COLLECTIONS | k_JSON_FB_STABLE_MAPS;
int64_t parser_options = json_options & supported_options;
Variant z;
if (JSON_parser(z, json.data(), json.size(), assoc, parser_options)) {
return z;
}
if (json.size() == 4) {
if (!strcasecmp(json.data(), "null")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return uninit_null();
}
if (!strcasecmp(json.data(), "true")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return true;
}
} else if (json.size() == 5 && !strcasecmp(json.data(), "false")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return false;
}
int64_t p;
double d;
DataType type = json->isNumericWithVal(p, d, 0);
if (type == KindOfInt64) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return p;
} else if (type == KindOfDouble) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return d;
}
char ch0 = json.charAt(0);
if (json.size() > 1 && ch0 == '"' && json.charAt(json.size() - 1) == '"') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
// Wrap the string in an array to allow the JSON_parser to handle
// things like unicode escape sequences, then unwrap to get result
String wrapped("[");
wrapped += json + "]";
// Stick to a normal hhvm array for the wrapper
const int64_t mask = ~(k_JSON_FB_COLLECTIONS | k_JSON_FB_STABLE_MAPS);
if (JSON_parser(z, wrapped.data(), wrapped.size(), false,
parser_options & mask) && z.isArray()) {
Array arr = z.toArray();
if ((arr.size() == 1) && arr.exists(0)) {
return arr[0];
}
// The input string could be something like: "foo","bar"
// Which will parse inside the [] wrapper, but be invalid
json_set_last_error_code(json_error_codes::JSON_ERROR_SYNTAX);
}
}
if ((json_options & k_JSON_FB_LOOSE) && json.size() > 1 &&
ch0 == '\'' && json.charAt(json.size() - 1) == '\'') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return json.substr(1, json.size() - 2);
}
if (ch0 == '{' || ch0 == '[') { /* invalid JSON string */
json_set_last_error_code(json_error_codes::JSON_ERROR_SYNTAX);
}
assert(json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE);
return uninit_null();
}
int f_json_last_error() {
return (int) json_get_last_error_code();
}
int64_t HHVM_FUNCTION(json_last_error) {
return (int) json_get_last_error_code();
}
TypedValue HHVM_FUNCTION(json_decode, const String& json,
bool assoc, int64_t depth, int64_t options) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if (json.empty()) {
return make_tv<KindOfNull>();
}
const int64_t supported_options =
k_JSON_FB_LOOSE |
k_JSON_FB_COLLECTIONS |
k_JSON_FB_STABLE_MAPS |
k_JSON_BIGINT_AS_STRING |
k_JSON_FB_HACK_ARRAYS;
int64_t parser_options = options & supported_options;
Variant z;
const auto ok =
JSON_parser(z, json.data(), json.size(), assoc, depth, parser_options);
if (UNLIKELY(StructuredLog::coinflip(RuntimeOption::EvalSerDesSampleRate))) {
StructuredLog::logSerDes("json", "des", json, z);
}
if (ok) {
return tvReturn(std::move(z));
}
String trimmed = HHVM_FN(trim)(json, "\t\n\r ");
if (trimmed.size() == 4) {
if (!strcasecmp(trimmed.data(), "null")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return make_tv<KindOfNull>();
}
if (!strcasecmp(trimmed.data(), "true")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return make_tv<KindOfBoolean>(true);
}
} else if (trimmed.size() == 5 && !strcasecmp(trimmed.data(), "false")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return make_tv<KindOfBoolean>(false);
}
int64_t p;
double d;
DataType type = json.get()->isNumericWithVal(p, d, 0);
if (type == KindOfInt64) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return make_tv<KindOfInt64>(p);
} else if (type == KindOfDouble) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if ((options & k_JSON_BIGINT_AS_STRING) &&
(json.toInt64() == LLONG_MAX || json.toInt64() == LLONG_MIN)
&& errno == ERANGE) { // Overflow
bool is_float = false;
for (int i = (trimmed[0] == '-' ? 1 : 0); i < trimmed.size(); ++i) {
if (trimmed[i] < '0' || trimmed[i] > '9') {
is_float = true;
break;
}
}
if (!is_float) {
return tvReturn(trimmed);
}
}
return make_tv<KindOfDouble>(d);
}
char ch0 = json.charAt(0);
if (json.size() > 1 && ch0 == '"' && json.charAt(json.size() - 1) == '"') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
// Wrap the string in an array to allow the JSON_parser to handle
// things like unicode escape sequences, then unwrap to get result
String wrapped("[");
wrapped += json + "]";
// Stick to a normal hhvm array for the wrapper
const int64_t mask = ~(k_JSON_FB_COLLECTIONS | k_JSON_FB_STABLE_MAPS);
if (JSON_parser(z, wrapped.data(), wrapped.size(), false, depth,
parser_options & mask) && z.isArray()) {
Array arr = z.toArray();
if ((arr.size() == 1) && arr.exists(0)) {
return tvReturn(arr[0]);
}
// The input string could be something like: "foo","bar"
// Which will parse inside the [] wrapper, but be invalid
json_set_last_error_code(json_error_codes::JSON_ERROR_SYNTAX);
}
}
if ((options & k_JSON_FB_LOOSE) && json.size() > 1 &&
ch0 == '\'' && json.charAt(json.size() - 1) == '\'') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return tvReturn(json.substr(1, json.size() - 2));
}
assert(json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE);
return make_tv<KindOfNull>();
}
Variant HHVM_FUNCTION(json_decode, const String& json, bool assoc /* = false */,
int64_t depth /* = 512 */, int64_t options /* = 0 */) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if (json.empty()) {
return init_null();
}
const int64_t supported_options =
k_JSON_FB_LOOSE |
k_JSON_FB_COLLECTIONS |
k_JSON_FB_STABLE_MAPS |
k_JSON_BIGINT_AS_STRING;
int64_t parser_options = options & supported_options;
Variant z;
if (JSON_parser(z, json.data(), json.size(), assoc, depth, parser_options)) {
return z;
}
String trimmed = f_trim(json, "\t\n\r ");
if (trimmed.size() == 4) {
if (!strcasecmp(trimmed.data(), "null")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return init_null();
}
if (!strcasecmp(trimmed.data(), "true")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return true;
}
} else if (trimmed.size() == 5 && !strcasecmp(trimmed.data(), "false")) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return false;
}
int64_t p;
double d;
DataType type = json.get()->isNumericWithVal(p, d, 0);
if (type == KindOfInt64) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return p;
} else if (type == KindOfDouble) {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
if ((options & k_JSON_BIGINT_AS_STRING) &&
(json.toInt64() == LLONG_MAX || json.toInt64() == LLONG_MIN)
&& errno == ERANGE) { // Overflow
bool is_float = false;
for (int i = (trimmed[0] == '-' ? 1 : 0); i < trimmed.size(); ++i) {
if (trimmed[i] < '0' || trimmed[i] > '9') {
is_float = true;
break;
}
}
if (!is_float) {
return trimmed;
}
}
return d;
}
char ch0 = json.charAt(0);
if (json.size() > 1 && ch0 == '"' && json.charAt(json.size() - 1) == '"') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
// Wrap the string in an array to allow the JSON_parser to handle
// things like unicode escape sequences, then unwrap to get result
String wrapped("[");
wrapped += json + "]";
// Stick to a normal hhvm array for the wrapper
const int64_t mask = ~(k_JSON_FB_COLLECTIONS | k_JSON_FB_STABLE_MAPS);
if (JSON_parser(z, wrapped.data(), wrapped.size(), false, depth,
parser_options & mask) && z.isArray()) {
Array arr = z.toArray();
if ((arr.size() == 1) && arr.exists(0)) {
return arr[0];
}
// The input string could be something like: "foo","bar"
// Which will parse inside the [] wrapper, but be invalid
json_set_last_error_code(json_error_codes::JSON_ERROR_SYNTAX);
}
}
if ((options & k_JSON_FB_LOOSE) && json.size() > 1 &&
ch0 == '\'' && json.charAt(json.size() - 1) == '\'') {
json_set_last_error_code(json_error_codes::JSON_ERROR_NONE);
return json.substr(1, json.size() - 2);
}
assert(json_get_last_error_code() != json_error_codes::JSON_ERROR_NONE);
return init_null();
}
