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This commit is contained in:
Petr Mrázek
2018-07-15 14:51:05 +02:00
parent 03280cc62e
commit bbb3b3e6f6
577 changed files with 51938 additions and 51938 deletions
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2
libraries/classparser/CMakeLists.txt
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@ -6,7 +6,7 @@ set(CMAKE_AUTOMOC ON)
include(TestBigEndian)
test_big_endian(BIGENDIAN)
if(${BIGENDIAN})
add_definitions(-DMULTIMC_BIG_ENDIAN)
add_definitions(-DMULTIMC_BIG_ENDIAN)
endif(${BIGENDIAN})
# Find Qt

132
libraries/classparser/src/annotations.cpp
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@ -6,80 +6,80 @@ namespace java
{
std::string annotation::toString()
{
std::ostringstream ss;
ss << "Annotation type : " << type_index << " - " << pool[type_index].str_data << std::endl;
ss << "Contains " << name_val_pairs.size() << " pairs:" << std::endl;
for (unsigned i = 0; i < name_val_pairs.size(); i++)
{
std::pair<uint16_t, element_value *> &val = name_val_pairs[i];
auto name_idx = val.first;
ss << pool[name_idx].str_data << "(" << name_idx << ")"
<< " = " << val.second->toString() << std::endl;
}
return ss.str();
std::ostringstream ss;
ss << "Annotation type : " << type_index << " - " << pool[type_index].str_data << std::endl;
ss << "Contains " << name_val_pairs.size() << " pairs:" << std::endl;
for (unsigned i = 0; i < name_val_pairs.size(); i++)
{
std::pair<uint16_t, element_value *> &val = name_val_pairs[i];
auto name_idx = val.first;
ss << pool[name_idx].str_data << "(" << name_idx << ")"
<< " = " << val.second->toString() << std::endl;
}
return ss.str();
}
annotation *annotation::read(util::membuffer &input, constant_pool &pool)
{
uint16_t type_index = 0;
input.read_be(type_index);
annotation *ann = new annotation(type_index, pool);
uint16_t type_index = 0;
input.read_be(type_index);
annotation *ann = new annotation(type_index, pool);
uint16_t num_pairs = 0;
input.read_be(num_pairs);
while (num_pairs)
{
uint16_t name_idx = 0;
// read name index
input.read_be(name_idx);
auto elem = element_value::readElementValue(input, pool);
// read value
ann->add_pair(name_idx, elem);
num_pairs--;
}
return ann;
uint16_t num_pairs = 0;
input.read_be(num_pairs);
while (num_pairs)
{
uint16_t name_idx = 0;
// read name index
input.read_be(name_idx);
auto elem = element_value::readElementValue(input, pool);
// read value
ann->add_pair(name_idx, elem);
num_pairs--;
}
return ann;
}
element_value *element_value::readElementValue(util::membuffer &input,
java::constant_pool &pool)
java::constant_pool &pool)
{
element_value_type type = INVALID;
input.read(type);
uint16_t index = 0;
uint16_t index2 = 0;
std::vector<element_value *> vals;
switch (type)
{
case PRIMITIVE_BYTE:
case PRIMITIVE_CHAR:
case PRIMITIVE_DOUBLE:
case PRIMITIVE_FLOAT:
case PRIMITIVE_INT:
case PRIMITIVE_LONG:
case PRIMITIVE_SHORT:
case PRIMITIVE_BOOLEAN:
case STRING:
input.read_be(index);
return new element_value_simple(type, index, pool);
case ENUM_CONSTANT:
input.read_be(index);
input.read_be(index2);
return new element_value_enum(type, index, index2, pool);
case CLASS: // Class
input.read_be(index);
return new element_value_class(type, index, pool);
case ANNOTATION: // Annotation
// FIXME: runtime visibility info needs to be passed from parent
return new element_value_annotation(ANNOTATION, annotation::read(input, pool), pool);
case ARRAY: // Array
input.read_be(index);
for (int i = 0; i < index; i++)
{
vals.push_back(element_value::readElementValue(input, pool));
}
return new element_value_array(ARRAY, vals, pool);
default:
throw new java::classfile_exception();
}
element_value_type type = INVALID;
input.read(type);
uint16_t index = 0;
uint16_t index2 = 0;
std::vector<element_value *> vals;
switch (type)
{
case PRIMITIVE_BYTE:
case PRIMITIVE_CHAR:
case PRIMITIVE_DOUBLE:
case PRIMITIVE_FLOAT:
case PRIMITIVE_INT:
case PRIMITIVE_LONG:
case PRIMITIVE_SHORT:
case PRIMITIVE_BOOLEAN:
case STRING:
input.read_be(index);
return new element_value_simple(type, index, pool);
case ENUM_CONSTANT:
input.read_be(index);
input.read_be(index2);
return new element_value_enum(type, index, index2, pool);
case CLASS: // Class
input.read_be(index);
return new element_value_class(type, index, pool);
case ANNOTATION: // Annotation
// FIXME: runtime visibility info needs to be passed from parent
return new element_value_annotation(ANNOTATION, annotation::read(input, pool), pool);
case ARRAY: // Array
input.read_be(index);
for (int i = 0; i < index; i++)
{
vals.push_back(element_value::readElementValue(input, pool));
}
return new element_value_array(ARRAY, vals, pool);
default:
throw new java::classfile_exception();
}
}
}

384
libraries/classparser/src/annotations.h
View File

@ -7,21 +7,21 @@ namespace java
{
enum element_value_type : uint8_t
{
INVALID = 0,
STRING = 's',
ENUM_CONSTANT = 'e',
CLASS = 'c',
ANNOTATION = '@',
ARRAY = '[', // one array dimension
PRIMITIVE_INT = 'I', // integer
PRIMITIVE_BYTE = 'B', // signed byte
PRIMITIVE_CHAR = 'C', // Unicode character code point in the Basic Multilingual Plane,
// encoded with UTF-16
PRIMITIVE_DOUBLE = 'D', // double-precision floating-point value
PRIMITIVE_FLOAT = 'F', // single-precision floating-point value
PRIMITIVE_LONG = 'J', // long integer
PRIMITIVE_SHORT = 'S', // signed short
PRIMITIVE_BOOLEAN = 'Z' // true or false
INVALID = 0,
STRING = 's',
ENUM_CONSTANT = 'e',
CLASS = 'c',
ANNOTATION = '@',
ARRAY = '[', // one array dimension
PRIMITIVE_INT = 'I', // integer
PRIMITIVE_BYTE = 'B', // signed byte
PRIMITIVE_CHAR = 'C', // Unicode character code point in the Basic Multilingual Plane,
// encoded with UTF-16
PRIMITIVE_DOUBLE = 'D', // double-precision floating-point value
PRIMITIVE_FLOAT = 'F', // single-precision floating-point value
PRIMITIVE_LONG = 'J', // long integer
PRIMITIVE_SHORT = 'S', // signed short
PRIMITIVE_BOOLEAN = 'Z' // true or false
};
/**
* The element_value structure is a discriminated union representing the value of an
@ -37,21 +37,21 @@ enum element_value_type : uint8_t
class element_value
{
protected:
element_value_type type;
constant_pool &pool;
element_value_type type;
constant_pool &pool;
public:
element_value(element_value_type type, constant_pool &pool) : type(type), pool(pool) {};
virtual ~element_value() {}
element_value(element_value_type type, constant_pool &pool) : type(type), pool(pool) {};
virtual ~element_value() {}
element_value_type getElementValueType()
{
return type;
}
element_value_type getElementValueType()
{
return type;
}
virtual std::string toString() = 0;
virtual std::string toString() = 0;
static element_value *readElementValue(util::membuffer &input, constant_pool &pool);
static element_value *readElementValue(util::membuffer &input, constant_pool &pool);
};
/**
@ -62,58 +62,58 @@ public:
class annotation
{
public:
typedef std::vector<std::pair<uint16_t, element_value *>> value_list;
typedef std::vector<std::pair<uint16_t, element_value *>> value_list;
protected:
/**
* The value of the type_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing a field descriptor representing the annotation type corresponding
* to the annotation represented by this annotation structure.
*/
uint16_t type_index;
/**
* map between element_name_index and value.
*
* The value of the element_name_index item must be a valid index into the constant_pool
*table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
*representing
* a valid field descriptor (§4.3.2) that denotes the name of the annotation type element
*represented
* by this element_value_pairs entry.
*/
value_list name_val_pairs;
/**
* Reference to the parent constant pool
*/
constant_pool &pool;
/**
* The value of the type_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing a field descriptor representing the annotation type corresponding
* to the annotation represented by this annotation structure.
*/
uint16_t type_index;
/**
* map between element_name_index and value.
*
* The value of the element_name_index item must be a valid index into the constant_pool
*table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
*representing
* a valid field descriptor (§4.3.2) that denotes the name of the annotation type element
*represented
* by this element_value_pairs entry.
*/
value_list name_val_pairs;
/**
* Reference to the parent constant pool
*/
constant_pool &pool;
public:
annotation(uint16_t type_index, constant_pool &pool)
: type_index(type_index), pool(pool) {};
~annotation()
{
for (unsigned i = 0; i < name_val_pairs.size(); i++)
{
delete name_val_pairs[i].second;
}
}
void add_pair(uint16_t key, element_value *value)
{
name_val_pairs.push_back(std::make_pair(key, value));
}
;
value_list::const_iterator begin()
{
return name_val_pairs.cbegin();
}
value_list::const_iterator end()
{
return name_val_pairs.cend();
}
std::string toString();
static annotation *read(util::membuffer &input, constant_pool &pool);
annotation(uint16_t type_index, constant_pool &pool)
: type_index(type_index), pool(pool) {};
~annotation()
{
for (unsigned i = 0; i < name_val_pairs.size(); i++)
{
delete name_val_pairs[i].second;
}
}
void add_pair(uint16_t key, element_value *value)
{
name_val_pairs.push_back(std::make_pair(key, value));
}
;
value_list::const_iterator begin()
{
return name_val_pairs.cbegin();
}
value_list::const_iterator end()
{
return name_val_pairs.cend();
}
std::string toString();
static annotation *read(util::membuffer &input, constant_pool &pool);
};
typedef std::vector<annotation *> annotation_table;
@ -121,158 +121,158 @@ typedef std::vector<annotation *> annotation_table;
class element_value_simple : public element_value
{
protected:
/// index of the constant in the constant pool
uint16_t index;
/// index of the constant in the constant pool
uint16_t index;
public:
element_value_simple(element_value_type type, uint16_t index, constant_pool &pool)
: element_value(type, pool), index(index) {
// TODO: verify consistency
};
uint16_t getIndex()
{
return index;
}
virtual std::string toString()
{
return pool[index].toString();
}
;
element_value_simple(element_value_type type, uint16_t index, constant_pool &pool)
: element_value(type, pool), index(index) {
// TODO: verify consistency
};
uint16_t getIndex()
{
return index;
}
virtual std::string toString()
{
return pool[index].toString();
}
;
};
/// The enum_const_value item is used if the tag item is 'e'.
class element_value_enum : public element_value
{
protected:
/**
* The value of the type_name_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing a valid field descriptor (§4.3.2) that denotes the internal form of the
* binary
* name (§4.2.1) of the type of the enum constant represented by this element_value
* structure.
*/
uint16_t typeIndex;
/**
* The value of the const_name_index item must be a valid index into the constant_pool
* table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing the simple name of the enum constant represented by this element_value
* structure.
*/
uint16_t valueIndex;
/**
* The value of the type_name_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing a valid field descriptor (§4.3.2) that denotes the internal form of the
* binary
* name (§4.2.1) of the type of the enum constant represented by this element_value
* structure.
*/
uint16_t typeIndex;
/**
* The value of the const_name_index item must be a valid index into the constant_pool
* table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing the simple name of the enum constant represented by this element_value
* structure.
*/
uint16_t valueIndex;
public:
element_value_enum(element_value_type type, uint16_t typeIndex, uint16_t valueIndex,
constant_pool &pool)
: element_value(type, pool), typeIndex(typeIndex), valueIndex(valueIndex)
{
// TODO: verify consistency
}
uint16_t getValueIndex()
{
return valueIndex;
}
uint16_t getTypeIndex()
{
return typeIndex;
}
virtual std::string toString()
{
return "enum value";
}
;
element_value_enum(element_value_type type, uint16_t typeIndex, uint16_t valueIndex,
constant_pool &pool)
: element_value(type, pool), typeIndex(typeIndex), valueIndex(valueIndex)
{
// TODO: verify consistency
}
uint16_t getValueIndex()
{
return valueIndex;
}
uint16_t getTypeIndex()
{
return typeIndex;
}
virtual std::string toString()
{
return "enum value";
}
;
};
class element_value_class : public element_value
{
protected:
/**
* The class_info_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing the return descriptor (§4.3.3) of the type that is reified by the class
* represented by this element_value structure.
*
* For example, 'V' for Void.class, 'Ljava/lang/Object;' for Object, etc.
*
* Or in plain english, you can store type information in annotations. Yay.
*/
uint16_t classIndex;
/**
* The class_info_index item must be a valid index into the constant_pool table.
* The constant_pool entry at that index must be a CONSTANT_Utf8_info (§4.4.7) structure
* representing the return descriptor (§4.3.3) of the type that is reified by the class
* represented by this element_value structure.
*
* For example, 'V' for Void.class, 'Ljava/lang/Object;' for Object, etc.
*
* Or in plain english, you can store type information in annotations. Yay.
*/
uint16_t classIndex;
public:
element_value_class(element_value_type type, uint16_t classIndex, constant_pool &pool)
: element_value(type, pool), classIndex(classIndex)
{
// TODO: verify consistency
}
uint16_t getIndex()
{
return classIndex;
}
virtual std::string toString()
{
return "class";
}
;
element_value_class(element_value_type type, uint16_t classIndex, constant_pool &pool)
: element_value(type, pool), classIndex(classIndex)
{
// TODO: verify consistency
}
uint16_t getIndex()
{
return classIndex;
}
virtual std::string toString()
{
return "class";
}
;
};
/// nested annotations... yay
class element_value_annotation : public element_value
{
private:
annotation *nestedAnnotation;
annotation *nestedAnnotation;
public:
element_value_annotation(element_value_type type, annotation *nestedAnnotation,
constant_pool &pool)
: element_value(type, pool), nestedAnnotation(nestedAnnotation) {};
~element_value_annotation()
{
if (nestedAnnotation)
{
delete nestedAnnotation;
nestedAnnotation = nullptr;
}
}
virtual std::string toString()
{
return "nested annotation";
}
;
element_value_annotation(element_value_type type, annotation *nestedAnnotation,
constant_pool &pool)
: element_value(type, pool), nestedAnnotation(nestedAnnotation) {};
~element_value_annotation()
{
if (nestedAnnotation)
{
delete nestedAnnotation;
nestedAnnotation = nullptr;
}
}
virtual std::string toString()
{
return "nested annotation";
}
;
};
/// and arrays!
class element_value_array : public element_value
{
public:
typedef std::vector<element_value *> elem_vec;
typedef std::vector<element_value *> elem_vec;
protected:
elem_vec values;
elem_vec values;
public:
element_value_array(element_value_type type, std::vector<element_value *> &values,
constant_pool &pool)
: element_value(type, pool), values(values) {};
~element_value_array()
{
for (unsigned i = 0; i < values.size(); i++)
{
delete values[i];
}
}
;
elem_vec::const_iterator begin()
{
return values.cbegin();
}
elem_vec::const_iterator end()
{
return values.cend();
}
virtual std::string toString()
{
return "array";
}
;
element_value_array(element_value_type type, std::vector<element_value *> &values,
constant_pool &pool)
: element_value(type, pool), values(values) {};
~element_value_array()
{
for (unsigned i = 0; i < values.size(); i++)
{
delete values[i];
}
}
;
elem_vec::const_iterator begin()
{
return values.cbegin();
}
elem_vec::const_iterator end()
{
return values.cend();
}
virtual std::string toString()
{
return "array";
}
;
};
}

272
libraries/classparser/src/classfile.h
View File

@ -11,146 +11,146 @@ namespace java
class classfile : public util::membuffer
{
public:
classfile(char *data, std::size_t size) : membuffer(data, size)
{
valid = false;
is_synthetic = false;
read_be(magic);
if (magic != 0xCAFEBABE)
throw new classfile_exception();
read_be(minor_version);
read_be(major_version);
constants.load(*this);
read_be(access_flags);
read_be(this_class);
read_be(super_class);
classfile(char *data, std::size_t size) : membuffer(data, size)
{
valid = false;
is_synthetic = false;
read_be(magic);
if (magic != 0xCAFEBABE)
throw new classfile_exception();
read_be(minor_version);
read_be(major_version);
constants.load(*this);
read_be(access_flags);
read_be(this_class);
read_be(super_class);
// Interfaces
uint16_t iface_count = 0;
read_be(iface_count);
while (iface_count)
{
uint16_t iface;
read_be(iface);
interfaces.push_back(iface);
iface_count--;
}
// Interfaces
uint16_t iface_count = 0;
read_be(iface_count);
while (iface_count)
{
uint16_t iface;
read_be(iface);
interfaces.push_back(iface);
iface_count--;
}
// Fields
// read fields (and attributes from inside fields) (and possible inner classes. yay for
// recursion!)
// for now though, we will ignore all attributes
/*
* field_info
* {
* u2 access_flags;
* u2 name_index;
* u2 descriptor_index;
* u2 attributes_count;
* attribute_info attributes[attributes_count];
* }
*/
uint16_t field_count = 0;
read_be(field_count);
while (field_count)
{
// skip field stuff
skip(6);
// and skip field attributes
uint16_t attr_count = 0;
read_be(attr_count);
while (attr_count)
{
skip(2);
uint32_t attr_length = 0;
read_be(attr_length);
skip(attr_length);
attr_count--;
}
field_count--;
}
// Fields
// read fields (and attributes from inside fields) (and possible inner classes. yay for
// recursion!)
// for now though, we will ignore all attributes
/*
* field_info
* {
* u2 access_flags;
* u2 name_index;
* u2 descriptor_index;
* u2 attributes_count;
* attribute_info attributes[attributes_count];
* }
*/
uint16_t field_count = 0;
read_be(field_count);
while (field_count)
{
// skip field stuff
skip(6);
// and skip field attributes
uint16_t attr_count = 0;
read_be(attr_count);
while (attr_count)
{
skip(2);
uint32_t attr_length = 0;
read_be(attr_length);
skip(attr_length);
attr_count--;
}
field_count--;
}
// class methods
/*
* method_info
* {
* u2 access_flags;
* u2 name_index;
* u2 descriptor_index;
* u2 attributes_count;
* attribute_info attributes[attributes_count];
* }
*/
uint16_t method_count = 0;
read_be(method_count);
while (method_count)
{
skip(6);
// and skip method attributes
uint16_t attr_count = 0;
read_be(attr_count);
while (attr_count)
{
skip(2);
uint32_t attr_length = 0;
read_be(attr_length);
skip(attr_length);
attr_count--;
}
method_count--;
}
// class methods
/*
* method_info
* {
* u2 access_flags;
* u2 name_index;
* u2 descriptor_index;
* u2 attributes_count;
* attribute_info attributes[attributes_count];
* }
*/
uint16_t method_count = 0;
read_be(method_count);
while (method_count)
{
skip(6);
// and skip method attributes
uint16_t attr_count = 0;
read_be(attr_count);
while (attr_count)
{
skip(2);
uint32_t attr_length = 0;
read_be(attr_length);
skip(attr_length);
attr_count--;
}
method_count--;
}
// class attributes
// there are many kinds of attributes. this is just the generic wrapper structure.
// type is decided by attribute name. extensions to the standard are *possible*
// class annotations are one kind of a attribute (one per class)
/*
* attribute_info
* {
* u2 attribute_name_index;
* u4 attribute_length;
* u1 info[attribute_length];
* }
*/
uint16_t class_attr_count = 0;
read_be(class_attr_count);
while (class_attr_count)
{
uint16_t name_idx = 0;
read_be(name_idx);
uint32_t attr_length = 0;
read_be(attr_length);
// class attributes
// there are many kinds of attributes. this is just the generic wrapper structure.
// type is decided by attribute name. extensions to the standard are *possible*
// class annotations are one kind of a attribute (one per class)
/*
* attribute_info
* {
* u2 attribute_name_index;
* u4 attribute_length;
* u1 info[attribute_length];
* }
*/
uint16_t class_attr_count = 0;
read_be(class_attr_count);
while (class_attr_count)
{
uint16_t name_idx = 0;
read_be(name_idx);
uint32_t attr_length = 0;
read_be(attr_length);
auto name = constants[name_idx];
if (name.str_data == "RuntimeVisibleAnnotations")
{
uint16_t num_annotations = 0;
read_be(num_annotations);
while (num_annotations)
{
visible_class_annotations.push_back(annotation::read(*this, constants));
num_annotations--;
}
}
else
skip(attr_length);
class_attr_count--;
}
valid = true;
}
;
bool valid;
bool is_synthetic;
uint32_t magic;
uint16_t minor_version;
uint16_t major_version;
constant_pool constants;
uint16_t access_flags;
uint16_t this_class;
uint16_t super_class;
// interfaces this class implements ? must be. investigate.
std::vector<uint16_t> interfaces;
// FIXME: doesn't free up memory on delete
java::annotation_table visible_class_annotations;
auto name = constants[name_idx];
if (name.str_data == "RuntimeVisibleAnnotations")
{
uint16_t num_annotations = 0;
read_be(num_annotations);
while (num_annotations)
{
visible_class_annotations.push_back(annotation::read(*this, constants));
num_annotations--;
}
}
else
skip(attr_length);
class_attr_count--;
}
valid = true;
}
;
bool valid;
bool is_synthetic;
uint32_t magic;
uint16_t minor_version;
uint16_t major_version;
constant_pool constants;
uint16_t access_flags;
uint16_t this_class;
uint16_t super_class;
// interfaces this class implements ? must be. investigate.
std::vector<uint16_t> interfaces;
// FIXME: doesn't free up memory on delete
java::annotation_table visible_class_annotations;
};
}

92
libraries/classparser/src/classparser.cpp
View File

@ -26,58 +26,58 @@ namespace classparser
QString GetMinecraftJarVersion(QString jarName)
{
QString version;
QString version;
// check if minecraft.jar exists
QFile jar(jarName);
if (!jar.exists())
return version;
// check if minecraft.jar exists
QFile jar(jarName);
if (!jar.exists())
return version;
// open minecraft.jar
QuaZip zip(&jar);
if (!zip.open(QuaZip::mdUnzip))
return version;
// open minecraft.jar
QuaZip zip(&jar);
if (!zip.open(QuaZip::mdUnzip))
return version;
// open Minecraft.class
zip.setCurrentFile("net/minecraft/client/Minecraft.class", QuaZip::csSensitive);
QuaZipFile Minecraft(&zip);
if (!Minecraft.open(QuaZipFile::ReadOnly))
return version;
// open Minecraft.class
zip.setCurrentFile("net/minecraft/client/Minecraft.class", QuaZip::csSensitive);
QuaZipFile Minecraft(&zip);
if (!Minecraft.open(QuaZipFile::ReadOnly))
return version;
// read Minecraft.class
qint64 size = Minecraft.size();
char *classfile = new char[size];
Minecraft.read(classfile, size);
// read Minecraft.class
qint64 size = Minecraft.size();
char *classfile = new char[size];
Minecraft.read(classfile, size);
// parse Minecraft.class
try
{
char *temp = classfile;
java::classfile MinecraftClass(temp, size);
java::constant_pool constants = MinecraftClass.constants;
for (java::constant_pool::container_type::const_iterator iter = constants.begin();
iter != constants.end(); iter++)
{
const java::constant &constant = *iter;
if (constant.type != java::constant_type_t::j_string_data)
continue;
const std::string &str = constant.str_data;
qDebug() << QString::fromStdString(str);
if (str.compare(0, 20, "Minecraft Minecraft ") == 0)
{
version = str.substr(20).data();
break;
}
}
}
catch (const java::classfile_exception &) { }
// parse Minecraft.class
try
{
char *temp = classfile;
java::classfile MinecraftClass(temp, size);
java::constant_pool constants = MinecraftClass.constants;
for (java::constant_pool::container_type::const_iterator iter = constants.begin();
iter != constants.end(); iter++)
{
const java::constant &constant = *iter;
if (constant.type != java::constant_type_t::j_string_data)
continue;
const std::string &str = constant.str_data;
qDebug() << QString::fromStdString(str);
if (str.compare(0, 20, "Minecraft Minecraft ") == 0)
{
version = str.substr(20).data();
break;
}
}
}
catch (const java::classfile_exception &) { }
// clean up
delete[] classfile;
Minecraft.close();
zip.close();
jar.close();
// clean up
delete[] classfile;
Minecraft.close();
zip.close();
jar.close();
return version;
return version;
}
}

384
libraries/classparser/src/constants.h
View File

@ -6,159 +6,159 @@ namespace java
{
enum class constant_type_t : uint8_t
{
j_hole = 0, // HACK: this is a hole in the array, because java is crazy
j_string_data = 1,
j_int = 3,
j_float = 4,
j_long = 5,
j_double = 6,
j_class = 7,
j_string = 8,
j_fieldref = 9,
j_methodref = 10,
j_interface_methodref = 11,
j_nameandtype = 12
// FIXME: missing some constant types, see https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4
j_hole = 0, // HACK: this is a hole in the array, because java is crazy
j_string_data = 1,
j_int = 3,
j_float = 4,
j_long = 5,
j_double = 6,
j_class = 7,
j_string = 8,
j_fieldref = 9,
j_methodref = 10,
j_interface_methodref = 11,
j_nameandtype = 12
// FIXME: missing some constant types, see https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-4.html#jvms-4.4
};
struct ref_type_t
{
/**
* Class reference:
* an index within the constant pool to a UTF-8 string containing
* the fully qualified class name (in internal format)
* Used for j_class, j_fieldref, j_methodref and j_interface_methodref
*/
uint16_t class_idx;
// used for j_fieldref, j_methodref and j_interface_methodref
uint16_t name_and_type_idx;
/**
* Class reference:
* an index within the constant pool to a UTF-8 string containing
* the fully qualified class name (in internal format)
* Used for j_class, j_fieldref, j_methodref and j_interface_methodref
*/
uint16_t class_idx;
// used for j_fieldref, j_methodref and j_interface_methodref
uint16_t name_and_type_idx;
};
struct name_and_type_t
{
uint16_t name_index;
uint16_t descriptor_index;
uint16_t name_index;
uint16_t descriptor_index;
};
class constant
{
public:
constant_type_t type = constant_type_t::j_hole;
constant_type_t type = constant_type_t::j_hole;
constant(util::membuffer &buf)
{
buf.read(type);
constant(util::membuffer &buf)
{
buf.read(type);
// load data depending on type
switch (type)
{
case constant_type_t::j_float:
buf.read_be(data.int_data);
break;
case constant_type_t::j_int:
buf.read_be(data.int_data); // same as float data really
break;
case constant_type_t::j_double:
buf.read_be(data.long_data);
break;
case constant_type_t::j_long:
buf.read_be(data.long_data); // same as double
break;
case constant_type_t::j_class:
buf.read_be(data.ref_type.class_idx);
break;
case constant_type_t::j_fieldref:
case constant_type_t::j_methodref:
case constant_type_t::j_interface_methodref:
buf.read_be(data.ref_type.class_idx);
buf.read_be(data.ref_type.name_and_type_idx);
break;
case constant_type_t::j_string:
buf.read_be(data.index);
break;
case constant_type_t::j_string_data:
// HACK HACK: for now, we call these UTF-8 and do no further processing.
// Later, we should do some decoding. It's really modified UTF-8
// * U+0000 is represented as 0xC0,0x80 invalid character
// * any single zero byte ends the string
// * characters above U+10000 are encoded like in CESU-8
buf.read_jstr(str_data);
break;
case constant_type_t::j_nameandtype:
buf.read_be(data.name_and_type.name_index);
buf.read_be(data.name_and_type.descriptor_index);
break;
default:
// invalid constant type!
throw new classfile_exception();
}
}
constant(int)
{
}
// load data depending on type
switch (type)
{
case constant_type_t::j_float:
buf.read_be(data.int_data);
break;
case constant_type_t::j_int:
buf.read_be(data.int_data); // same as float data really
break;
case constant_type_t::j_double:
buf.read_be(data.long_data);
break;
case constant_type_t::j_long:
buf.read_be(data.long_data); // same as double
break;
case constant_type_t::j_class:
buf.read_be(data.ref_type.class_idx);
break;
case constant_type_t::j_fieldref:
case constant_type_t::j_methodref:
case constant_type_t::j_interface_methodref:
buf.read_be(data.ref_type.class_idx);
buf.read_be(data.ref_type.name_and_type_idx);
break;
case constant_type_t::j_string:
buf.read_be(data.index);
break;
case constant_type_t::j_string_data:
// HACK HACK: for now, we call these UTF-8 and do no further processing.
// Later, we should do some decoding. It's really modified UTF-8
// * U+0000 is represented as 0xC0,0x80 invalid character
// * any single zero byte ends the string
// * characters above U+10000 are encoded like in CESU-8
buf.read_jstr(str_data);
break;
case constant_type_t::j_nameandtype:
buf.read_be(data.name_and_type.name_index);
buf.read_be(data.name_and_type.descriptor_index);
break;
default:
// invalid constant type!
throw new classfile_exception();
}
}
constant(int)
{
}
std::string toString()
{
std::ostringstream ss;
switch (type)
{
case constant_type_t::j_hole:
ss << "Fake legacy entry";
break;
case constant_type_t::j_float:
ss << "Float: " << data.float_data;
break;
case constant_type_t::j_double:
ss << "Double: " << data.double_data;
break;
case constant_type_t::j_int:
ss << "Int: " << data.int_data;
break;
case constant_type_t::j_long:
ss << "Long: " << data.long_data;
break;
case constant_type_t::j_string_data:
ss << "StrData: " << str_data;
break;
case constant_type_t::j_string:
ss << "Str: " << data.index;
break;
case constant_type_t::j_fieldref:
ss << "FieldRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_methodref:
ss << "MethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_interface_methodref:
ss << "IfMethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_class:
ss << "Class: " << data.ref_type.class_idx;
break;
case constant_type_t::j_nameandtype:
ss << "NameAndType: " << data.name_and_type.name_index << " "
<< data.name_and_type.descriptor_index;
break;
default:
ss << "Invalid entry (" << int(type) << ")";
break;
}
return ss.str();
}
std::string toString()
{
std::ostringstream ss;
switch (type)
{
case constant_type_t::j_hole:
ss << "Fake legacy entry";
break;
case constant_type_t::j_float:
ss << "Float: " << data.float_data;
break;
case constant_type_t::j_double:
ss << "Double: " << data.double_data;
break;
case constant_type_t::j_int:
ss << "Int: " << data.int_data;
break;
case constant_type_t::j_long:
ss << "Long: " << data.long_data;
break;
case constant_type_t::j_string_data:
ss << "StrData: " << str_data;
break;
case constant_type_t::j_string:
ss << "Str: " << data.index;
break;
case constant_type_t::j_fieldref:
ss << "FieldRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_methodref:
ss << "MethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_interface_methodref:
ss << "IfMethodRef: " << data.ref_type.class_idx << " " << data.ref_type.name_and_type_idx;
break;
case constant_type_t::j_class:
ss << "Class: " << data.ref_type.class_idx;
break;
case constant_type_t::j_nameandtype:
ss << "NameAndType: " << data.name_and_type.name_index << " "
<< data.name_and_type.descriptor_index;
break;
default:
ss << "Invalid entry (" << int(type) << ")";
break;
}
return ss.str();
}
std::string str_data; /** String data in 'modified utf-8'.*/
std::string str_data; /** String data in 'modified utf-8'.*/
// store everything here.
union
{
int32_t int_data;
int64_t long_data;
float float_data;
double double_data;
uint16_t index;
ref_type_t ref_type;
name_and_type_t name_and_type;
} data = {0};
// store everything here.
union
{
int32_t int_data;
int64_t long_data;
float float_data;
double double_data;
uint16_t index;
ref_type_t ref_type;
name_and_type_t name_and_type;
} data = {0};
};
/**
@ -168,64 +168,64 @@ public:
class constant_pool
{
public:
/**
* Create a pool of constants
*/
constant_pool()
{
}
/**
* Load a java constant pool
*/
void load(util::membuffer &buf)
{
// FIXME: @SANITY this should check for the end of buffer.
uint16_t length = 0;
buf.read_be(length);
length--;
const constant *last_constant = nullptr;
while (length)
{
const constant &cnst = constant(buf);
constants.push_back(cnst);
last_constant = &constants[constants.size() - 1];
if (last_constant->type == constant_type_t::j_double ||
last_constant->type == constant_type_t::j_long)
{
// push in a fake constant to preserve indexing
constants.push_back(constant(0));
length -= 2;
}
else
{
length--;
}
}
}
typedef std::vector<java::constant> container_type;
/**
* Access constants based on jar file index numbers (index of the first element is 1)
*/
java::constant &operator[](std::size_t constant_index)
{
if (constant_index == 0 || constant_index > constants.size())
{
throw new classfile_exception();
}
return constants[constant_index - 1];
}
;
container_type::const_iterator begin() const
{
return constants.begin();
}
;
container_type::const_iterator end() const
{
return constants.end();
}
/**
* Create a pool of constants
*/
constant_pool()
{
}
/**
* Load a java constant pool
*/
void load(util::membuffer &buf)
{
// FIXME: @SANITY this should check for the end of buffer.
uint16_t length = 0;
buf.read_be(length);
length--;
const constant *last_constant = nullptr;
while (length)
{
const constant &cnst = constant(buf);
constants.push_back(cnst);
last_constant = &constants[constants.size() - 1];
if (last_constant->type == constant_type_t::j_double ||
last_constant->type == constant_type_t::j_long)
{
// push in a fake constant to preserve indexing
constants.push_back(constant(0));
length -= 2;
}
else
{
length--;
}
}
}
typedef std::vector<java::constant> container_type;
/**
* Access constants based on jar file index numbers (index of the first element is 1)
*/
java::constant &operator[](std::size_t constant_index)
{
if (constant_index == 0 || constant_index > constants.size())
{
throw new classfile_exception();
}
return constants[constant_index - 1];
}
;
container_type::const_iterator begin() const
{
return constants.begin();
}
;
container_type::const_iterator end() const
{
return constants.end();
}
private:
container_type constants;
container_type constants;
};
}

32
libraries/classparser/src/javaendian.h
View File

@ -9,67 +9,67 @@ namespace util
#ifdef MULTIMC_BIG_ENDIAN
inline uint64_t bigswap(uint64_t x)
{
return x;
return x;
}
;
inline uint32_t bigswap(uint32_t x)
{
return x;
return x;
}
;
inline uint16_t bigswap(uint16_t x)
{
return x;
return x;
}
;
inline int64_t bigswap(int64_t x)
{
return x;
return x;
}
;
inline int32_t bigswap(int32_t x)
{
return x;
return x;
}
;
inline int16_t bigswap(int16_t x)
{
return x;
return x;
}
;
#else
inline uint64_t bigswap(uint64_t x)
{
return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) |
((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) |
((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56);
return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) |
((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) |
((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56);
}
inline uint32_t bigswap(uint32_t x)
{
return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24);
return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24);
}
inline uint16_t bigswap(uint16_t x)
{
return (x >> 8) | (x << 8);
return (x >> 8) | (x << 8);
}
inline int64_t bigswap(int64_t x)
{
return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) |
((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) |
((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56);
return (x >> 56) | ((x << 40) & 0x00FF000000000000) | ((x << 24) & 0x0000FF0000000000) |
((x << 8) & 0x000000FF00000000) | ((x >> 8) & 0x00000000FF000000) |
((x >> 24) & 0x0000000000FF0000) | ((x >> 40) & 0x000000000000FF00) | (x << 56);
}
inline int32_t bigswap(int32_t x)
{
return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24);
return (x >> 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x << 24);
}
inline int16_t bigswap(int16_t x)
{
return (x >> 8) | (x << 8);
return (x >> 8) | (x << 8);
}
#endif

94
libraries/classparser/src/membuffer.h
View File

@ -10,54 +10,54 @@ namespace util
class membuffer
{
public:
membuffer(char *buffer, std::size_t size)
{
current = start = buffer;
end = start + size;
}
~membuffer()
{
// maybe? possibly? left out to avoid confusion. for now.
// delete start;
}
/**
* Read some value. That's all ;)
*/
template <class T> void read(T &val)
{
val = *(T *)current;
current += sizeof(T);
}
/**
* Read a big-endian number
* valid for 2-byte, 4-byte and 8-byte variables
*/
template <class T> void read_be(T &val)
{
val = util::bigswap(*(T *)current);
current += sizeof(T);
}
/**
* Read a string in the format:
* 2B length (big endian, unsigned)
* length bytes data
*/
void read_jstr(std::string &str)
{
uint16_t length = 0;
read_be(length);
str.append(current, length);
current += length;
}
/**
* Skip N bytes
*/
void skip(std::size_t N)
{
current += N;
}
membuffer(char *buffer, std::size_t size)
{
current = start = buffer;
end = start + size;
}
~membuffer()
{
// maybe? possibly? left out to avoid confusion. for now.
// delete start;
}
/**
* Read some value. That's all ;)
*/
template <class T> void read(T &val)
{
val = *(T *)current;
current += sizeof(T);
}
/**
* Read a big-endian number
* valid for 2-byte, 4-byte and 8-byte variables
*/
template <class T> void read_be(T &val)
{
val = util::bigswap(*(T *)current);
current += sizeof(T);
}
/**
* Read a string in the format:
* 2B length (big endian, unsigned)
* length bytes data
*/
void read_jstr(std::string &str)
{
uint16_t length = 0;
read_be(length);
str.append(current, length);
current += length;
}
/**
* Skip N bytes
*/
void skip(std::size_t N)
{
current += N;
}
private:
char *start, *end, *current;
char *start, *end, *current;
};
}