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mirror of https://github.com/vcmi/vcmi.git synced 2024-11-24 08:32:34 +02:00
vcmi/lib/JsonDetail.cpp
Andrey Filipenkov ff635edc0b wrap all library code into namespace if VCMI_LIB_NAMESPACE is defined
preparation for having client and server in a single process
2022-09-24 15:55:21 +03:00

1249 lines
34 KiB
C++

/*
* JsonDetail.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "JsonDetail.h"
#include "VCMI_Lib.h"
#include "CGeneralTextHandler.h"
#include "CModHandler.h"
#include "filesystem/Filesystem.h"
#include "ScopeGuard.h"
VCMI_LIB_NAMESPACE_BEGIN
static const JsonNode nullNode;
template<typename Iterator>
void JsonWriter::writeContainer(Iterator begin, Iterator end)
{
if (begin == end)
return;
prefix += '\t';
writeEntry(begin++);
while (begin != end)
{
out << (compactMode ? ", " : ",\n");
writeEntry(begin++);
}
out << (compactMode ? "" : "\n");
prefix.resize(prefix.size()-1);
}
void JsonWriter::writeEntry(JsonMap::const_iterator entry)
{
if(!compactMode)
{
if (!entry->second.meta.empty())
out << prefix << " // " << entry->second.meta << "\n";
if(!entry->second.flags.empty())
out << prefix << " // flags: " << boost::algorithm::join(entry->second.flags, ", ") << "\n";
out << prefix;
}
writeString(entry->first);
out << " : ";
writeNode(entry->second);
}
void JsonWriter::writeEntry(JsonVector::const_iterator entry)
{
if(!compactMode)
{
if (!entry->meta.empty())
out << prefix << " // " << entry->meta << "\n";
if(!entry->flags.empty())
out << prefix << " // flags: " << boost::algorithm::join(entry->flags, ", ") << "\n";
out << prefix;
}
writeNode(*entry);
}
void JsonWriter::writeString(const std::string &string)
{
static const std::string escaped = "\"\\\b\f\n\r\t/";
static const std::array<char, 8> escaped_code = {'\"', '\\', 'b', 'f', 'n', 'r', 't', '/'};
out <<'\"';
size_t pos=0, start=0;
for (; pos<string.size(); pos++)
{
//we need to check if special character was been already escaped
if((string[pos] == '\\')
&& (pos+1 < string.size())
&& (std::find(escaped_code.begin(), escaped_code.end(), string[pos+1]) != escaped_code.end()) )
{
pos++; //write unchanged, next simbol also checked
}
else
{
size_t escapedPos = escaped.find(string[pos]);
if (escapedPos != std::string::npos)
{
out.write(string.data()+start, pos - start);
out << '\\' << escaped_code[escapedPos];
start = pos+1;
}
}
}
out.write(string.data()+start, pos - start);
out <<'\"';
}
void JsonWriter::writeNode(const JsonNode &node)
{
bool originalMode = compactMode;
if(compact && !compactMode && node.isCompact())
compactMode = true;
switch(node.getType())
{
break; case JsonNode::JsonType::DATA_NULL:
out << "null";
break; case JsonNode::JsonType::DATA_BOOL:
if (node.Bool())
out << "true";
else
out << "false";
break; case JsonNode::JsonType::DATA_FLOAT:
out << node.Float();
break; case JsonNode::JsonType::DATA_STRING:
writeString(node.String());
break; case JsonNode::JsonType::DATA_VECTOR:
out << "[" << (compactMode ? " " : "\n");
writeContainer(node.Vector().begin(), node.Vector().end());
out << (compactMode ? " " : prefix) << "]";
break; case JsonNode::JsonType::DATA_STRUCT:
out << "{" << (compactMode ? " " : "\n");
writeContainer(node.Struct().begin(), node.Struct().end());
out << (compactMode ? " " : prefix) << "}";
break; case JsonNode::JsonType::DATA_INTEGER:
out << node.Integer();
}
compactMode = originalMode;
}
JsonWriter::JsonWriter(std::ostream & output, bool compact)
: out(output), compact(compact)
{
}
////////////////////////////////////////////////////////////////////////////////
JsonParser::JsonParser(const char * inputString, size_t stringSize):
input(inputString, stringSize),
lineCount(1),
lineStart(0),
pos(0)
{
}
JsonNode JsonParser::parse(std::string fileName)
{
JsonNode root;
if (input.size() == 0)
{
error("File is empty", false);
}
else
{
if (!Unicode::isValidString(&input[0], input.size()))
error("Not a valid UTF-8 file", false);
extractValue(root);
extractWhitespace(false);
//Warn if there are any non-whitespace symbols left
if (pos < input.size())
error("Not all file was parsed!", true);
}
if (!errors.empty())
{
logMod->warn("File %s is not a valid JSON file!", fileName);
logMod->warn(errors);
}
return root;
}
bool JsonParser::isValid()
{
return errors.empty();
}
bool JsonParser::extractSeparator()
{
if (!extractWhitespace())
return false;
if ( input[pos] !=':')
return error("Separator expected");
pos++;
return true;
}
bool JsonParser::extractValue(JsonNode &node)
{
if (!extractWhitespace())
return false;
switch (input[pos])
{
case '\"': return extractString(node);
case 'n' : return extractNull(node);
case 't' : return extractTrue(node);
case 'f' : return extractFalse(node);
case '{' : return extractStruct(node);
case '[' : return extractArray(node);
case '-' : return extractFloat(node);
default:
{
if (input[pos] >= '0' && input[pos] <= '9')
return extractFloat(node);
return error("Value expected!");
}
}
}
bool JsonParser::extractWhitespace(bool verbose)
{
while (true)
{
while (pos < input.size() && (ui8)input[pos] <= ' ')
{
if (input[pos] == '\n')
{
lineCount++;
lineStart = pos+1;
}
pos++;
}
if (pos >= input.size() || input[pos] != '/')
break;
pos++;
if (pos == input.size())
break;
if (input[pos] == '/')
pos++;
else
error("Comments must consist from two slashes!", true);
while (pos < input.size() && input[pos] != '\n')
pos++;
}
if (pos >= input.size() && verbose)
return error("Unexpected end of file!");
return true;
}
bool JsonParser::extractEscaping(std::string &str)
{
switch(input[pos])
{
break; case '\"': str += '\"';
break; case '\\': str += '\\';
break; case 'b': str += '\b';
break; case 'f': str += '\f';
break; case 'n': str += '\n';
break; case 'r': str += '\r';
break; case 't': str += '\t';
break; case '/': str += '/';
break; default: return error("Unknown escape sequence!", true);
}
return true;
}
bool JsonParser::extractString(std::string &str)
{
if (input[pos] != '\"')
return error("String expected!");
pos++;
size_t first = pos;
while (pos != input.size())
{
if (input[pos] == '\"') // Correct end of string
{
str.append( &input[first], pos-first);
pos++;
return true;
}
if (input[pos] == '\\') // Escaping
{
str.append( &input[first], pos-first);
pos++;
if (pos == input.size())
break;
extractEscaping(str);
first = pos + 1;
}
if (input[pos] == '\n') // end-of-line
{
str.append( &input[first], pos-first);
return error("Closing quote not found!", true);
}
if ((unsigned char)(input[pos]) < ' ') // control character
{
str.append( &input[first], pos-first);
first = pos+1;
error("Illegal character in the string!", true);
}
pos++;
}
return error("Unterminated string!");
}
bool JsonParser::extractString(JsonNode &node)
{
std::string str;
if (!extractString(str))
return false;
node.setType(JsonNode::JsonType::DATA_STRING);
node.String() = str;
return true;
}
bool JsonParser::extractLiteral(const std::string &literal)
{
if (literal.compare(0, literal.size(), &input[pos], literal.size()) != 0)
{
while (pos < input.size() && ((input[pos]>'a' && input[pos]<'z')
|| (input[pos]>'A' && input[pos]<'Z')))
pos++;
return error("Unknown literal found", true);
}
pos += literal.size();
return true;
}
bool JsonParser::extractNull(JsonNode &node)
{
if (!extractLiteral("null"))
return false;
node.clear();
return true;
}
bool JsonParser::extractTrue(JsonNode &node)
{
if (!extractLiteral("true"))
return false;
node.Bool() = true;
return true;
}
bool JsonParser::extractFalse(JsonNode &node)
{
if (!extractLiteral("false"))
return false;
node.Bool() = false;
return true;
}
bool JsonParser::extractStruct(JsonNode &node)
{
node.setType(JsonNode::JsonType::DATA_STRUCT);
pos++;
if (!extractWhitespace())
return false;
//Empty struct found
if (input[pos] == '}')
{
pos++;
return true;
}
while (true)
{
if (!extractWhitespace())
return false;
std::string key;
if (!extractString(key))
return false;
// split key string into actual key and meta-flags
std::vector<std::string> keyAndFlags;
boost::split(keyAndFlags, key, boost::is_any_of("#"));
key = keyAndFlags[0];
// check for unknown flags - helps with debugging
std::vector<std::string> knownFlags = { "override" };
for(int i = 1; i < keyAndFlags.size(); i++)
{
if(!vstd::contains(knownFlags, keyAndFlags[i]))
error("Encountered unknown flag #" + keyAndFlags[i], true);
}
if (node.Struct().find(key) != node.Struct().end())
error("Dublicated element encountered!", true);
if (!extractSeparator())
return false;
if (!extractElement(node.Struct()[key], '}'))
return false;
// flags from key string belong to referenced element
for(int i = 1; i < keyAndFlags.size(); i++)
node.Struct()[key].flags.push_back(keyAndFlags[i]);
if (input[pos] == '}')
{
pos++;
return true;
}
}
}
bool JsonParser::extractArray(JsonNode &node)
{
pos++;
node.setType(JsonNode::JsonType::DATA_VECTOR);
if (!extractWhitespace())
return false;
//Empty array found
if (input[pos] == ']')
{
pos++;
return true;
}
while (true)
{
//NOTE: currently 50% of time is this vector resizing.
//May be useful to use list during parsing and then swap() all items to vector
node.Vector().resize(node.Vector().size()+1);
if (!extractElement(node.Vector().back(), ']'))
return false;
if (input[pos] == ']')
{
pos++;
return true;
}
}
}
bool JsonParser::extractElement(JsonNode &node, char terminator)
{
if (!extractValue(node))
return false;
if (!extractWhitespace())
return false;
bool comma = (input[pos] == ',');
if (comma )
{
pos++;
if (!extractWhitespace())
return false;
}
if (input[pos] == terminator)
{
//FIXME: MOD COMPATIBILITY: Too many of these right now, re-enable later
//if (comma)
//error("Extra comma found!", true);
return true;
}
if (!comma)
error("Comma expected!", true);
return true;
}
bool JsonParser::extractFloat(JsonNode &node)
{
assert(input[pos] == '-' || (input[pos] >= '0' && input[pos] <= '9'));
bool negative=false;
double result=0;
si64 integerPart = 0;
bool isFloat = false;
if (input[pos] == '-')
{
pos++;
negative = true;
}
if (input[pos] < '0' || input[pos] > '9')
return error("Number expected!");
//Extract integer part
while (input[pos] >= '0' && input[pos] <= '9')
{
integerPart = integerPart*10+(input[pos]-'0');
pos++;
}
result = static_cast<double>(integerPart);
if (input[pos] == '.')
{
//extract fractional part
isFloat = true;
pos++;
double fractMult = 0.1;
if (input[pos] < '0' || input[pos] > '9')
return error("Decimal part expected!");
while (input[pos] >= '0' && input[pos] <= '9')
{
result = result + fractMult*(input[pos]-'0');
fractMult /= 10;
pos++;
}
}
if(input[pos] == 'e')
{
//extract exponential part
pos++;
isFloat = true;
bool powerNegative = false;
double power = 0;
if(input[pos] == '-')
{
pos++;
powerNegative = true;
}
else if(input[pos] == '+')
{
pos++;
}
if (input[pos] < '0' || input[pos] > '9')
return error("Exponential part expected!");
while (input[pos] >= '0' && input[pos] <= '9')
{
power = power*10 + (input[pos]-'0');
pos++;
}
if(powerNegative)
power = -power;
result *= std::pow(10, power);
}
if(isFloat)
{
if(negative)
result = -result;
node.setType(JsonNode::JsonType::DATA_FLOAT);
node.Float() = result;
}
else
{
if(negative)
integerPart = -integerPart;
node.setType(JsonNode::JsonType::DATA_INTEGER);
node.Integer() = integerPart;
}
return true;
}
bool JsonParser::error(const std::string &message, bool warning)
{
std::ostringstream stream;
std::string type(warning?" warning: ":" error: ");
stream << "At line " << lineCount << ", position "<<pos-lineStart
<< type << message <<"\n";
errors += stream.str();
return warning;
}
///////////////////////////////////////////////////////////////////////////////
//TODO: integer support
static const std::unordered_map<std::string, JsonNode::JsonType> stringToType =
{
{"null", JsonNode::JsonType::DATA_NULL},
{"boolean", JsonNode::JsonType::DATA_BOOL},
{"number", JsonNode::JsonType::DATA_FLOAT},
{"string", JsonNode::JsonType::DATA_STRING},
{"array", JsonNode::JsonType::DATA_VECTOR},
{"object", JsonNode::JsonType::DATA_STRUCT}
};
namespace
{
namespace Common
{
std::string emptyCheck(Validation::ValidationData &, const JsonNode &, const JsonNode &, const JsonNode &)
{
// check is not needed - e.g. incorporated into another check
return "";
}
std::string notImplementedCheck(Validation::ValidationData &, const JsonNode &, const JsonNode &, const JsonNode &)
{
return "Not implemented entry in schema";
}
std::string schemaListCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data,
std::string errorMsg, std::function<bool(size_t)> isValid)
{
std::string errors = "<tested schemas>\n";
size_t result = 0;
for(auto & schemaEntry : schema.Vector())
{
std::string error = check(schemaEntry, data, validator);
if (error.empty())
{
result++;
}
else
{
errors += error;
errors += "<end of schema>\n";
}
}
if (isValid(result))
return "";
else
return validator.makeErrorMessage(errorMsg) + errors;
}
std::string allOfCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
return schemaListCheck(validator, baseSchema, schema, data, "Failed to pass all schemas", [&](size_t count)
{
return count == schema.Vector().size();
});
}
std::string anyOfCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
return schemaListCheck(validator, baseSchema, schema, data, "Failed to pass any schema", [&](size_t count)
{
return count > 0;
});
}
std::string oneOfCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
return schemaListCheck(validator, baseSchema, schema, data, "Failed to pass exactly one schema", [&](size_t count)
{
return count == 1;
});
}
std::string notCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (check(schema, data, validator).empty())
return validator.makeErrorMessage("Successful validation against negative check");
return "";
}
std::string enumCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
for(auto & enumEntry : schema.Vector())
{
if (data == enumEntry)
return "";
}
return validator.makeErrorMessage("Key must have one of predefined values");
}
std::string typeCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
const auto typeName = schema.String();
auto it = stringToType.find(typeName);
if(it == stringToType.end())
{
return validator.makeErrorMessage("Unknown type in schema:" + typeName);
}
JsonNode::JsonType type = it->second;
//FIXME: hack for integer values
if(data.isNumber() && type == JsonNode::JsonType::DATA_FLOAT)
return "";
if(type != data.getType() && data.getType() != JsonNode::JsonType::DATA_NULL)
return validator.makeErrorMessage("Type mismatch! Expected " + schema.String());
return "";
}
std::string refCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string URI = schema.String();
//node must be validated using schema pointed by this reference and not by data here
//Local reference. Turn it into more easy to handle remote ref
if (boost::algorithm::starts_with(URI, "#"))
URI = validator.usedSchemas.back() + URI;
return check(URI, data, validator);
}
std::string formatCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
auto formats = Validation::getKnownFormats();
std::string errors;
auto checker = formats.find(schema.String());
if (checker != formats.end())
{
std::string result = checker->second(data);
if (!result.empty())
errors += validator.makeErrorMessage(result);
}
else
errors += validator.makeErrorMessage("Unsupported format type: " + schema.String());
return errors;
}
}
namespace String
{
std::string maxLengthCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.String().size() > schema.Float())
return validator.makeErrorMessage((boost::format("String is longer than %d symbols") % schema.Float()).str());
return "";
}
std::string minLengthCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.String().size() < schema.Float())
return validator.makeErrorMessage((boost::format("String is shorter than %d symbols") % schema.Float()).str());
return "";
}
}
namespace Number
{
std::string maximumCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (baseSchema["exclusiveMaximum"].Bool())
{
if (data.Float() >= schema.Float())
return validator.makeErrorMessage((boost::format("Value is bigger than %d") % schema.Float()).str());
}
else
{
if (data.Float() > schema.Float())
return validator.makeErrorMessage((boost::format("Value is bigger than %d") % schema.Float()).str());
}
return "";
}
std::string minimumCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (baseSchema["exclusiveMinimum"].Bool())
{
if (data.Float() <= schema.Float())
return validator.makeErrorMessage((boost::format("Value is smaller than %d") % schema.Float()).str());
}
else
{
if (data.Float() < schema.Float())
return validator.makeErrorMessage((boost::format("Value is smaller than %d") % schema.Float()).str());
}
return "";
}
std::string multipleOfCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
double result = data.Float() / schema.Float();
if (floor(result) != result)
return validator.makeErrorMessage((boost::format("Value is not divisible by %d") % schema.Float()).str());
return "";
}
}
namespace Vector
{
std::string itemEntryCheck(Validation::ValidationData & validator, const JsonVector items, const JsonNode & schema, size_t index)
{
validator.currentPath.push_back(JsonNode());
validator.currentPath.back().Float() = static_cast<double>(index);
auto onExit = vstd::makeScopeGuard([&]()
{
validator.currentPath.pop_back();
});
if (!schema.isNull())
return check(schema, items[index], validator);
return "";
}
std::string itemsCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
for (size_t i=0; i<data.Vector().size(); i++)
{
if (schema.getType() == JsonNode::JsonType::DATA_VECTOR)
{
if (schema.Vector().size() > i)
errors += itemEntryCheck(validator, data.Vector(), schema.Vector()[i], i);
}
else
{
errors += itemEntryCheck(validator, data.Vector(), schema, i);
}
}
return errors;
}
std::string additionalItemsCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
// "items" is struct or empty (defaults to empty struct) - validation always successful
const JsonNode & items = baseSchema["items"];
if (items.getType() != JsonNode::JsonType::DATA_VECTOR)
return "";
for (size_t i=items.Vector().size(); i<data.Vector().size(); i++)
{
if (schema.getType() == JsonNode::JsonType::DATA_STRUCT)
errors += itemEntryCheck(validator, data.Vector(), schema, i);
else if (!schema.isNull() && schema.Bool() == false)
errors += validator.makeErrorMessage("Unknown entry found");
}
return errors;
}
std::string minItemsCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.Vector().size() < schema.Float())
return validator.makeErrorMessage((boost::format("Length is smaller than %d") % schema.Float()).str());
return "";
}
std::string maxItemsCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.Vector().size() > schema.Float())
return validator.makeErrorMessage((boost::format("Length is bigger than %d") % schema.Float()).str());
return "";
}
std::string uniqueItemsCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (schema.Bool())
{
for (auto itA = schema.Vector().begin(); itA != schema.Vector().end(); itA++)
{
auto itB = itA;
while (++itB != schema.Vector().end())
{
if (*itA == *itB)
return validator.makeErrorMessage("List must consist from unique items");
}
}
}
return "";
}
}
namespace Struct
{
std::string maxPropertiesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.Struct().size() > schema.Float())
return validator.makeErrorMessage((boost::format("Number of entries is bigger than %d") % schema.Float()).str());
return "";
}
std::string minPropertiesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
if (data.Struct().size() < schema.Float())
return validator.makeErrorMessage((boost::format("Number of entries is less than %d") % schema.Float()).str());
return "";
}
std::string uniquePropertiesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
for (auto itA = data.Struct().begin(); itA != data.Struct().end(); itA++)
{
auto itB = itA;
while (++itB != data.Struct().end())
{
if (itA->second == itB->second)
return validator.makeErrorMessage("List must consist from unique items");
}
}
return "";
}
std::string requiredCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
for(auto & required : schema.Vector())
{
if (data[required.String()].isNull())
errors += validator.makeErrorMessage("Required entry " + required.String() + " is missing");
}
return errors;
}
std::string dependenciesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
for(auto & deps : schema.Struct())
{
if (!data[deps.first].isNull())
{
if (deps.second.getType() == JsonNode::JsonType::DATA_VECTOR)
{
JsonVector depList = deps.second.Vector();
for(auto & depEntry : depList)
{
if (data[depEntry.String()].isNull())
errors += validator.makeErrorMessage("Property " + depEntry.String() + " required for " + deps.first + " is missing");
}
}
else
{
if (!check(deps.second, data, validator).empty())
errors += validator.makeErrorMessage("Requirements for " + deps.first + " are not fulfilled");
}
}
}
return errors;
}
std::string propertyEntryCheck(Validation::ValidationData & validator, const JsonNode &node, const JsonNode & schema, std::string nodeName)
{
validator.currentPath.push_back(JsonNode());
validator.currentPath.back().String() = nodeName;
auto onExit = vstd::makeScopeGuard([&]()
{
validator.currentPath.pop_back();
});
// there is schema specifically for this item
if (!schema.isNull())
return check(schema, node, validator);
return "";
}
std::string propertiesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
for(auto & entry : data.Struct())
errors += propertyEntryCheck(validator, entry.second, schema[entry.first], entry.first);
return errors;
}
std::string additionalPropertiesCheck(Validation::ValidationData & validator, const JsonNode & baseSchema, const JsonNode & schema, const JsonNode & data)
{
std::string errors;
for(auto & entry : data.Struct())
{
if (baseSchema["properties"].Struct().count(entry.first) == 0)
{
// try generic additionalItems schema
if (schema.getType() == JsonNode::JsonType::DATA_STRUCT)
errors += propertyEntryCheck(validator, entry.second, schema, entry.first);
// or, additionalItems field can be bool which indicates if such items are allowed
else if (!schema.isNull() && schema.Bool() == false) // present and set to false - error
errors += validator.makeErrorMessage("Unknown entry found: " + entry.first);
}
}
return errors;
}
}
namespace Formats
{
bool testFilePresence(std::string scope, ResourceID resource)
{
std::set<std::string> allowedScopes;
if(scope != "core" && !scope.empty()) // all real mods may have dependencies
{
//NOTE: recursive dependencies are not allowed at the moment - update code if this changes
bool found = true;
allowedScopes = VLC->modh->getModDependencies(scope, found);
if(!found)
return false;
allowedScopes.insert("core"); // all mods can use H3 files
}
allowedScopes.insert(scope); // mods can use their own files
for (auto & entry : allowedScopes)
{
if (CResourceHandler::get(entry)->existsResource(resource))
return true;
}
return false;
}
#define TEST_FILE(scope, prefix, file, type) \
if (testFilePresence(scope, ResourceID(prefix + file, type))) \
return ""
std::string testAnimation(std::string path, std::string scope)
{
TEST_FILE(scope, "Sprites/", path, EResType::ANIMATION);
TEST_FILE(scope, "Sprites/", path, EResType::TEXT);
return "Animation file \"" + path + "\" was not found";
}
std::string textFile(const JsonNode & node)
{
TEST_FILE(node.meta, "", node.String(), EResType::TEXT);
return "Text file \"" + node.String() + "\" was not found";
}
std::string musicFile(const JsonNode & node)
{
TEST_FILE(node.meta, "", node.String(), EResType::MUSIC);
return "Music file \"" + node.String() + "\" was not found";
}
std::string soundFile(const JsonNode & node)
{
TEST_FILE(node.meta, "Sounds/", node.String(), EResType::SOUND);
return "Sound file \"" + node.String() + "\" was not found";
}
std::string defFile(const JsonNode & node)
{
TEST_FILE(node.meta, "Sprites/", node.String(), EResType::ANIMATION);
return "Def file \"" + node.String() + "\" was not found";
}
std::string animationFile(const JsonNode & node)
{
return testAnimation(node.String(), node.meta);
}
std::string imageFile(const JsonNode & node)
{
TEST_FILE(node.meta, "Data/", node.String(), EResType::IMAGE);
TEST_FILE(node.meta, "Sprites/", node.String(), EResType::IMAGE);
if (node.String().find(':') != std::string::npos)
return testAnimation(node.String().substr(0, node.String().find(':')), node.meta);
return "Image file \"" + node.String() + "\" was not found";
}
std::string videoFile(const JsonNode & node)
{
TEST_FILE(node.meta, "Video/", node.String(), EResType::VIDEO);
return "Video file \"" + node.String() + "\" was not found";
}
#undef TEST_FILE
}
Validation::TValidatorMap createCommonFields()
{
Validation::TValidatorMap ret;
ret["format"] = Common::formatCheck;
ret["allOf"] = Common::allOfCheck;
ret["anyOf"] = Common::anyOfCheck;
ret["oneOf"] = Common::oneOfCheck;
ret["enum"] = Common::enumCheck;
ret["type"] = Common::typeCheck;
ret["not"] = Common::notCheck;
ret["$ref"] = Common::refCheck;
// fields that don't need implementation
ret["title"] = Common::emptyCheck;
ret["$schema"] = Common::emptyCheck;
ret["default"] = Common::emptyCheck;
ret["description"] = Common::emptyCheck;
ret["definitions"] = Common::emptyCheck;
return ret;
}
Validation::TValidatorMap createStringFields()
{
Validation::TValidatorMap ret = createCommonFields();
ret["maxLength"] = String::maxLengthCheck;
ret["minLength"] = String::minLengthCheck;
ret["pattern"] = Common::notImplementedCheck;
return ret;
}
Validation::TValidatorMap createNumberFields()
{
Validation::TValidatorMap ret = createCommonFields();
ret["maximum"] = Number::maximumCheck;
ret["minimum"] = Number::minimumCheck;
ret["multipleOf"] = Number::multipleOfCheck;
ret["exclusiveMaximum"] = Common::emptyCheck;
ret["exclusiveMinimum"] = Common::emptyCheck;
return ret;
}
Validation::TValidatorMap createVectorFields()
{
Validation::TValidatorMap ret = createCommonFields();
ret["items"] = Vector::itemsCheck;
ret["minItems"] = Vector::minItemsCheck;
ret["maxItems"] = Vector::maxItemsCheck;
ret["uniqueItems"] = Vector::uniqueItemsCheck;
ret["additionalItems"] = Vector::additionalItemsCheck;
return ret;
}
Validation::TValidatorMap createStructFields()
{
Validation::TValidatorMap ret = createCommonFields();
ret["additionalProperties"] = Struct::additionalPropertiesCheck;
ret["uniqueProperties"] = Struct::uniquePropertiesCheck;
ret["maxProperties"] = Struct::maxPropertiesCheck;
ret["minProperties"] = Struct::minPropertiesCheck;
ret["dependencies"] = Struct::dependenciesCheck;
ret["properties"] = Struct::propertiesCheck;
ret["required"] = Struct::requiredCheck;
ret["patternProperties"] = Common::notImplementedCheck;
return ret;
}
Validation::TFormatMap createFormatMap()
{
Validation::TFormatMap ret;
ret["textFile"] = Formats::textFile;
ret["musicFile"] = Formats::musicFile;
ret["soundFile"] = Formats::soundFile;
ret["defFile"] = Formats::defFile;
ret["animationFile"] = Formats::animationFile;
ret["imageFile"] = Formats::imageFile;
ret["videoFile"] = Formats::videoFile;
return ret;
}
}
namespace Validation
{
std::string ValidationData::makeErrorMessage(const std::string &message)
{
std::string errors;
errors += "At ";
if (!currentPath.empty())
{
for(const JsonNode &path : currentPath)
{
errors += "/";
if (path.getType() == JsonNode::JsonType::DATA_STRING)
errors += path.String();
else
errors += boost::lexical_cast<std::string>(static_cast<unsigned>(path.Float()));
}
}
else
errors += "<root>";
errors += "\n\t Error: " + message + "\n";
return errors;
}
std::string check(std::string schemaName, const JsonNode & data)
{
ValidationData validator;
return check(schemaName, data, validator);
}
std::string check(std::string schemaName, const JsonNode & data, ValidationData & validator)
{
validator.usedSchemas.push_back(schemaName);
auto onscopeExit = vstd::makeScopeGuard([&]()
{
validator.usedSchemas.pop_back();
});
return check(JsonUtils::getSchema(schemaName), data, validator);
}
std::string check(const JsonNode & schema, const JsonNode & data, ValidationData & validator)
{
const TValidatorMap & knownFields = getKnownFieldsFor(data.getType());
std::string errors;
for(auto & entry : schema.Struct())
{
auto checker = knownFields.find(entry.first);
if (checker != knownFields.end())
errors += checker->second(validator, schema, entry.second, data);
//else
// errors += validator.makeErrorMessage("Unknown entry in schema " + entry.first);
}
return errors;
}
const TValidatorMap & getKnownFieldsFor(JsonNode::JsonType type)
{
static const TValidatorMap commonFields = createCommonFields();
static const TValidatorMap numberFields = createNumberFields();
static const TValidatorMap stringFields = createStringFields();
static const TValidatorMap vectorFields = createVectorFields();
static const TValidatorMap structFields = createStructFields();
switch (type)
{
case JsonNode::JsonType::DATA_FLOAT:
case JsonNode::JsonType::DATA_INTEGER:
return numberFields;
case JsonNode::JsonType::DATA_STRING: return stringFields;
case JsonNode::JsonType::DATA_VECTOR: return vectorFields;
case JsonNode::JsonType::DATA_STRUCT: return structFields;
default: return commonFields;
}
}
const TFormatMap & getKnownFormats()
{
static TFormatMap knownFormats = createFormatMap();
return knownFormats;
}
} // Validation namespace
VCMI_LIB_NAMESPACE_END