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Merge branch 'master' into 6.x

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# Conflicts:
#	CHANGELOG.md
#	src/ArduinoJson/Deserialization/JsonParser.hpp
#	src/ArduinoJson/Deserialization/JsonParserImpl.hpp
#	test/JsonBuffer/nestingLimit.cpp
This commit is contained in:
Benoit Blanchon
2018-03-14 14:46:53 +01:00
parent b2a8085651 3523296e3d
commit e3e4aa89ad
5 changed files with 113 additions and 95 deletions
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2
CHANGELOG.md
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@@ -4,6 +4,8 @@ ArduinoJson: change log
HEAD
----
* Fixed `JsonBuffer::parse()` not respecting nesting limit correctly (issue #693)
* Fixed inconsistencies in nesting level counting (PR #695 from Zhenyu Wu)
* Added `DynamicJsonArray` and `StaticJsonArray`
* Added `DynamicJsonObject` and `StaticJsonObject`
* Added `DynamicJsonVariant` and `StaticJsonVariant`

9
src/ArduinoJson/Deserialization/JsonParser.hpp
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@@ -38,12 +38,9 @@ class JsonParser {
}
const char *parseString();
JsonError parseAnythingTo(JsonVariant *destination);
FORCE_INLINE JsonError parseAnythingToUnsafe(JsonVariant *destination);
inline JsonError parseArrayTo(JsonVariant *destination);
inline JsonError parseObjectTo(JsonVariant *destination);
inline JsonError parseStringTo(JsonVariant *destination);
JsonError parseArray(JsonVariant &variant);
JsonError parseObject(JsonVariant &variant);
JsonError parseValue(JsonVariant &variant);
static inline bool isBetween(char c, char min, char max) {
return min <= c && c <= max;

96
src/ArduinoJson/Deserialization/JsonParserImpl.hpp
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@@ -17,38 +17,11 @@ inline bool ArduinoJson::Internals::JsonParser<TReader, TWriter>::eat(
return true;
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseAnythingTo(
JsonVariant *destination) {
if (_nestingLimit == 0) return JsonError::TooDeep;
_nestingLimit--;
JsonError error = parseAnythingToUnsafe(destination);
_nestingLimit++;
return error;
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseAnythingToUnsafe(
JsonVariant *destination) {
skipSpacesAndComments(_reader);
switch (_reader.current()) {
case '[':
return parseArrayTo(destination);
case '{':
return parseObjectTo(destination);
default:
return parseStringTo(destination);
}
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parse(JsonArray &array) {
if (_nestingLimit == 0) return JsonError::TooDeep;
// Check opening braket
if (!eat('[')) return JsonError::OpeningBracketExpected;
if (eat(']')) return JsonError::Ok;
@@ -57,7 +30,9 @@ ArduinoJson::Internals::JsonParser<TReader, TWriter>::parse(JsonArray &array) {
for (;;) {
// 1 - Parse value
JsonVariant value;
JsonError error = parseAnythingTo(&value);
_nestingLimit--;
JsonError error = parse(value);
_nestingLimit++;
if (error != JsonError::Ok) return error;
if (!array.add(value)) return JsonError::NoMemory;
@@ -71,6 +46,8 @@ template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parse(
JsonObject &object) {
if (_nestingLimit == 0) return JsonError::TooDeep;
// Check opening brace
if (!eat('{')) return JsonError::OpeningBraceExpected;
if (eat('}')) return JsonError::Ok;
@@ -84,7 +61,9 @@ ArduinoJson::Internals::JsonParser<TReader, TWriter>::parse(
// 2 - Parse value
JsonVariant value;
JsonError error = parseAnythingTo(&value);
_nestingLimit--;
JsonError error = parse(value);
_nestingLimit++;
if (error != JsonError::Ok) return error;
if (!object.set(key, value)) return JsonError::NoMemory;
@@ -98,29 +77,55 @@ template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parse(
JsonVariant &variant) {
return parseAnythingTo(&variant);
skipSpacesAndComments(_reader);
switch (_reader.current()) {
case '[':
return parseArray(variant);
case '{':
return parseObject(variant);
default:
return parseValue(variant);
}
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseArrayTo(
JsonVariant *destination) {
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseArray(
JsonVariant &variant) {
JsonArray *array = new (_buffer) JsonArray(_buffer);
if (!array) return JsonError::NoMemory;
*destination = array;
variant = array;
return parse(*array);
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseObjectTo(
JsonVariant *destination) {
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseObject(
JsonVariant &variant) {
JsonObject *object = new (_buffer) JsonObject(_buffer);
if (!object) return JsonError::NoMemory;
*destination = object;
variant = object;
return parse(*object);
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseValue(
JsonVariant &variant) {
bool hasQuotes = isQuote(_reader.current());
const char *value = parseString();
if (value == NULL) return JsonError::NoMemory;
if (hasQuotes) {
variant = value;
} else {
variant = RawJson(value);
}
return JsonError::Ok;
}
template <typename TReader, typename TWriter>
inline const char *
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseString() {
@@ -159,18 +164,3 @@ ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseString() {
return str.c_str();
}
template <typename TReader, typename TWriter>
inline ArduinoJson::JsonError
ArduinoJson::Internals::JsonParser<TReader, TWriter>::parseStringTo(
JsonVariant *destination) {
bool hasQuotes = isQuote(_reader.current());
const char *value = parseString();
if (value == NULL) return JsonError::NoMemory;
if (hasQuotes) {
*destination = value;
} else {
*destination = RawJson(value);
}
return JsonError::Ok;
}

16
src/ArduinoJson/JsonError.hpp
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@@ -21,12 +21,20 @@ class JsonError {
JsonError(Code code) : _code(code) {}
bool operator==(Code code) const {
return _code == code;
friend bool operator==(const JsonError& err, Code code) {
return err._code == code;
}
bool operator!=(Code code) const {
return _code != code;
friend bool operator==(Code code, const JsonError& err) {
return err._code == code;
}
friend bool operator!=(const JsonError& err, Code code) {
return err._code != code;
}
friend bool operator!=(Code code, const JsonError& err) {
return err._code != code;
}
operator bool() const {

85
test/JsonParser/nestingLimit.cpp
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@@ -5,45 +5,66 @@
#include <ArduinoJson.h>
#include <catch.hpp>
JsonError tryParseArray(const char *json, uint8_t nestingLimit) {
DynamicJsonArray array;
return deserializeJson(array, json, nestingLimit);
}
JsonError tryParseObject(const char *json, uint8_t nestingLimit) {
DynamicJsonObject obj;
return deserializeJson(obj, json, nestingLimit);
}
#define SHOULD_WORK(expression) REQUIRE(JsonError::Ok == expression);
#define SHOULD_FAIL(expression) REQUIRE(JsonError::TooDeep == expression);
TEST_CASE("JsonParser nestingLimit") {
SECTION("ParseArrayWithNestingLimit0") {
REQUIRE(tryParseArray("[]", 0) == JsonError::Ok);
REQUIRE(tryParseArray("[[]]", 0) == JsonError::TooDeep);
SECTION("deserializeJson(JsonArray&)") {
DynamicJsonArray arr;
SECTION("limit = 0") {
SHOULD_FAIL(deserializeJson(arr, "[]", 0));
}
SECTION("limit = 1") {
SHOULD_WORK(deserializeJson(arr, "[]", 1));
SHOULD_FAIL(deserializeJson(arr, "[[]]", 1));
}
SECTION("limit = 2") {
SHOULD_WORK(deserializeJson(arr, "[[]]", 2));
SHOULD_FAIL(deserializeJson(arr, "[[[]]]", 2));
}
}
SECTION("ParseArrayWithNestingLimit1") {
REQUIRE(tryParseArray("[[]]", 1) == JsonError::Ok);
REQUIRE(tryParseArray("[[[]]]", 1) == JsonError::TooDeep);
SECTION("deserializeJson(JsonObject&)") {
DynamicJsonObject obj;
SECTION("limit = 0") {
SHOULD_FAIL(deserializeJson(obj, "{}", 0));
}
SECTION("limit = 1") {
SHOULD_WORK(deserializeJson(obj, "{\"key\":42}", 1));
SHOULD_FAIL(deserializeJson(obj, "{\"key\":{\"key\":42}}", 1));
}
SECTION("limit = 2") {
SHOULD_WORK(deserializeJson(obj, "{\"key\":{\"key\":42}}", 2));
SHOULD_FAIL(deserializeJson(obj, "{\"key\":{\"key\":{\"key\":42}}}", 2));
}
}
SECTION("ParseArrayWithNestingLimit2") {
REQUIRE(tryParseArray("[[[]]]", 2) == JsonError::Ok);
REQUIRE(tryParseArray("[[[[]]]]", 2) == JsonError::TooDeep);
}
SECTION("deserializeJson(JsonVariant&)") {
DynamicJsonVariant var;
SECTION("ParseObjectWithNestingLimit0") {
REQUIRE(tryParseObject("{}", 0) == JsonError::Ok);
REQUIRE(tryParseObject("{\"key\":{}}", 0) == JsonError::TooDeep);
}
SECTION("limit = 0") {
SHOULD_WORK(deserializeJson(var, "\"toto\"", 0));
SHOULD_WORK(deserializeJson(var, "123", 0));
SHOULD_WORK(deserializeJson(var, "true", 0));
SHOULD_FAIL(deserializeJson(var, "[]", 0));
SHOULD_FAIL(deserializeJson(var, "{}", 0));
SHOULD_FAIL(deserializeJson(var, "[\"toto\"]", 0));
SHOULD_FAIL(deserializeJson(var, "{\"toto\":1}", 0));
}
SECTION("ParseObjectWithNestingLimit1") {
REQUIRE(tryParseObject("{\"key\":{}}", 1) == JsonError::Ok);
REQUIRE(tryParseObject("{\"key\":{\"key\":{}}}", 1) == JsonError::TooDeep);
}
SECTION("ParseObjectWithNestingLimit2") {
REQUIRE(tryParseObject("{\"key\":{\"key\":{}}}", 2) == JsonError::Ok);
REQUIRE(tryParseObject("{\"key\":{\"key\":{\"key\":{}}}}", 2) ==
JsonError::TooDeep);
SECTION("limit = 1") {
SHOULD_WORK(deserializeJson(var, "[\"toto\"]", 1));
SHOULD_WORK(deserializeJson(var, "{\"toto\":1}", 1));
SHOULD_FAIL(deserializeJson(var, "{\"toto\":{}}", 1));
SHOULD_FAIL(deserializeJson(var, "{\"toto\":[]}", 1));
SHOULD_FAIL(deserializeJson(var, "[[\"toto\"]]", 1));
SHOULD_FAIL(deserializeJson(var, "[{\"toto\":1}]", 1));
}
}
}