From bb7e8985f6d189de0acac6a1c3033cb16378c1fb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Petr=20Mr=C3=A1zek?= Date: Mon, 4 Nov 2013 02:53:05 +0100 Subject: Reformat and (slightly) decruft all the things. --- depends/classparser/src/annotations.cpp | 136 ++++----- depends/classparser/src/annotations.h | 487 +++++++++++++++++--------------- depends/classparser/src/classfile.h | 269 +++++++++--------- depends/classparser/src/constants.h | 374 ++++++++++++------------ depends/classparser/src/errors.h | 4 +- depends/classparser/src/javaendian.h | 54 ++-- depends/classparser/src/javautils.cpp | 17 +- depends/classparser/src/membuffer.h | 105 ++++--- 8 files changed, 751 insertions(+), 695 deletions(-) (limited to 'depends/classparser/src') diff --git a/depends/classparser/src/annotations.cpp b/depends/classparser/src/annotations.cpp index fc0c98fa..d1a7c046 100644 --- a/depends/classparser/src/annotations.cpp +++ b/depends/classparser/src/annotations.cpp @@ -4,80 +4,82 @@ namespace java { - std::string annotation::toString() +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::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 &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::pair &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); - annotation * annotation::read (util::membuffer& input, constant_pool& pool) + uint16_t num_pairs = 0; + input.read_be(num_pairs); + while (num_pairs) { - 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 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--; } - - element_value* element_value::readElementValue ( util::membuffer& input, java::constant_pool& pool ) + return ann; +} + +element_value *element_value::readElementValue(util::membuffer &input, + java::constant_pool &pool) +{ + element_value_type type = INVALID; + input.read(type); + uint16_t index = 0; + uint16_t index2 = 0; + std::vector vals; + switch (type) { - element_value_type type = INVALID; - input.read(type); - uint16_t index = 0; - uint16_t index2 = 0; - std::vector 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++) { - 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(); + vals.push_back(element_value::readElementValue(input, pool)); } + return new element_value_array(ARRAY, vals, pool); + default: + throw new java::classfile_exception(); } +} } \ No newline at end of file diff --git a/depends/classparser/src/annotations.h b/depends/classparser/src/annotations.h index b115dc0b..aa25d241 100644 --- a/depends/classparser/src/annotations.h +++ b/depends/classparser/src/annotations.h @@ -5,248 +5,273 @@ 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 - }; +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 +}; +/** + * The element_value structure is a discriminated union representing the value of an + *element-value pair. + * It is used to represent element values in all attributes that describe annotations + * - RuntimeVisibleAnnotations + * - RuntimeInvisibleAnnotations + * - RuntimeVisibleParameterAnnotations + * - RuntimeInvisibleParameterAnnotations). + * + * The element_value structure has the following format: + */ +class element_value +{ +protected: + element_value_type type; + constant_pool &pool; + +public: + element_value(element_value_type type, constant_pool &pool) : type(type), pool(pool) {}; + + element_value_type getElementValueType() + { + return type; + } + + virtual std::string toString() = 0; + + static element_value *readElementValue(util::membuffer &input, constant_pool &pool); +}; + +/** + * Each value of the annotations table represents a single runtime-visible annotation on a + * program element. + * The annotation structure has the following format: + */ +class annotation +{ +public: + typedef std::vector> value_list; + +protected: /** - * The element_value structure is a discriminated union representing the value of an element-value pair. - * It is used to represent element values in all attributes that describe annotations - * - RuntimeVisibleAnnotations - * - RuntimeInvisibleAnnotations - * - RuntimeVisibleParameterAnnotations - * - RuntimeInvisibleParameterAnnotations). + * 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 element_value structure has the following format: + * 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. */ - class element_value - { - protected: - element_value_type type; - constant_pool & pool; - - public: - element_value(element_value_type type, constant_pool & pool): type(type), pool(pool) {}; + value_list name_val_pairs; + /** + * Reference to the parent constant pool + */ + constant_pool &pool; - element_value_type getElementValueType() +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++) { - return type; + delete name_val_pairs[i].second; } - - virtual std::string toString() = 0; + } + 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_table; + +/// type for simple value annotation elements +class element_value_simple : public element_value +{ +protected: + /// index of the constant in the constant pool + uint16_t index; - static element_value * readElementValue(util::membuffer & input, constant_pool & pool); - }; - +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(); + } + ; +}; +/// The enum_const_value item is used if the tag item is 'e'. +class element_value_enum : public element_value +{ +protected: /** - * Each value of the annotations table represents a single runtime-visible annotation on a program element. - * The annotation structure has the following format: + * 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. */ - class annotation - { - public: - typedef std::vector< std::pair > 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; - 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); - }; - typedef std::vector annotation_table; - - - /// type for simple value annotation elements - class element_value_simple : public element_value - { - protected: - /// 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(); - }; - }; - /// 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; - 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"; - }; - }; - - 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; - 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"; - }; - }; - - /// nested annotations... yay - class element_value_annotation : public element_value - { - private: - 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"; - }; - }; - - /// and arrays! - class element_value_array : public element_value - { - public: - typedef std::vector elem_vec; - protected: - elem_vec values; - public: - element_value_array ( element_value_type type, std::vector & 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() + 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"; + } + ; +}; + +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; + +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"; + } + ; +}; + +/// nested annotations... yay +class element_value_annotation : public element_value +{ +private: + 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) { - return values.cbegin(); + delete nestedAnnotation; + nestedAnnotation = nullptr; } - elem_vec::const_iterator end() + } + virtual std::string toString() + { + return "nested annotation"; + } + ; +}; + +/// and arrays! +class element_value_array : public element_value +{ +public: + typedef std::vector elem_vec; + +protected: + elem_vec values; + +public: + element_value_array(element_value_type type, std::vector &values, + constant_pool &pool) + : element_value(type, pool), values(values) {}; + ~element_value_array() + { + for (unsigned i = 0; i < values.size(); i++) { - return values.cend(); + delete values[i]; } - virtual std::string toString() - { - return "array"; - }; - }; + } + ; + elem_vec::const_iterator begin() + { + return values.cbegin(); + } + elem_vec::const_iterator end() + { + return values.cend(); + } + virtual std::string toString() + { + return "array"; + } + ; +}; } \ No newline at end of file diff --git a/depends/classparser/src/classfile.h b/depends/classparser/src/classfile.h index 33207e99..a5e7ee50 100644 --- a/depends/classparser/src/classfile.h +++ b/depends/classparser/src/classfile.h @@ -5,149 +5,152 @@ #include namespace java { - /** - * Class representing a Java .class file - */ - class classfile : public util::membuffer +/** + * Class representing a Java .class file + */ +class classfile : public util::membuffer +{ +public: + classfile(char *data, std::size_t size) : membuffer(data, size) { - 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); + + // Interfaces + uint16_t iface_count = 0; + read_be(iface_count); + while (iface_count) { - 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 --; - } - - // 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 --; - } + uint16_t iface; + read_be(iface); + interfaces.push_back(iface); + iface_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 ) + // 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(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 --; + skip(2); + uint32_t attr_length = 0; + read_be(attr_length); + skip(attr_length); + attr_count--; } + field_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) + // 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) { - uint16_t name_idx = 0; - read_be(name_idx); + skip(2); uint32_t attr_length = 0; read_be(attr_length); - - auto name = constants[name_idx]; - if(name.str_data == "RuntimeVisibleAnnotations") + 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); + + auto name = constants[name_idx]; + if (name.str_data == "RuntimeVisibleAnnotations") + { + uint16_t num_annotations = 0; + read_be(num_annotations); + while (num_annotations) { - uint16_t num_annotations = 0; - read_be(num_annotations); - while (num_annotations) - { - visible_class_annotations.push_back(annotation::read(*this, constants)); - 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 interfaces; - // FIXME: doesn't free up memory on delete - java::annotation_table visible_class_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 interfaces; + // FIXME: doesn't free up memory on delete + java::annotation_table visible_class_annotations; +}; } \ No newline at end of file diff --git a/depends/classparser/src/constants.h b/depends/classparser/src/constants.h index 61aa5687..242b943e 100644 --- a/depends/classparser/src/constants.h +++ b/depends/classparser/src/constants.h @@ -4,209 +4,217 @@ namespace java { - class constant +class constant +{ +public: + enum type_t : uint8_t { - public: - enum 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 - } type; + 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 + } type; - constant(util::membuffer & buf ) - { - buf.read(type); - // invalid constant type! - if(type > j_nameandtype || type == (type_t)0 || type == (type_t)2) - throw new classfile_exception(); - - // load data depending on type - switch(type) - { - case j_float: - case j_int: - buf.read_be(int_data); // same as float data really - break; - case j_double: - case j_long: - buf.read_be(long_data); // same as double - break; - case j_class: - buf.read_be(ref_type.class_idx); - break; - case j_fieldref: - case j_methodref: - case j_interface_methodref: - buf.read_be(ref_type.class_idx); - buf.read_be(ref_type.name_and_type_idx); - break; - case j_string: - buf.read_be(index); - break; - case 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 j_nameandtype: - buf.read_be(name_and_type.name_index); - buf.read_be(name_and_type.descriptor_index); - break; - } - } + constant(util::membuffer &buf) + { + buf.read(type); + // invalid constant type! + if (type > j_nameandtype || type == (type_t)0 || type == (type_t)2) + throw new classfile_exception(); - constant(int fake) + // load data depending on type + switch (type) { - type = j_hole; + case j_float: + case j_int: + buf.read_be(int_data); // same as float data really + break; + case j_double: + case j_long: + buf.read_be(long_data); // same as double + break; + case j_class: + buf.read_be(ref_type.class_idx); + break; + case j_fieldref: + case j_methodref: + case j_interface_methodref: + buf.read_be(ref_type.class_idx); + buf.read_be(ref_type.name_and_type_idx); + break; + case j_string: + buf.read_be(index); + break; + case 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 j_nameandtype: + buf.read_be(name_and_type.name_index); + buf.read_be(name_and_type.descriptor_index); + break; } + } + + constant(int fake) + { + type = j_hole; + } - std::string toString() + std::string toString() + { + std::ostringstream ss; + switch (type) { - std::ostringstream ss; - switch(type) - { - case j_hole: - ss << "Fake legacy entry"; - break; - case j_float: - ss << "Float: " << float_data; - break; - case j_double: - ss << "Double: " << double_data; - break; - case j_int: - ss << "Int: " << int_data; - break; - case j_long: - ss << "Long: " << long_data; - break; - case j_string_data: - ss << "StrData: " << str_data; - break; - case j_string: - ss << "Str: " << index; - break; - case j_fieldref: - ss << "FieldRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_methodref: - ss << "MethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_interface_methodref: - ss << "IfMethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; - break; - case j_class: - ss << "Class: " << ref_type.class_idx; - break; - case j_nameandtype: - ss << "NameAndType: " << name_and_type.name_index << " " << name_and_type.descriptor_index; - break; - } - return ss.str(); + case j_hole: + ss << "Fake legacy entry"; + break; + case j_float: + ss << "Float: " << float_data; + break; + case j_double: + ss << "Double: " << double_data; + break; + case j_int: + ss << "Int: " << int_data; + break; + case j_long: + ss << "Long: " << long_data; + break; + case j_string_data: + ss << "StrData: " << str_data; + break; + case j_string: + ss << "Str: " << index; + break; + case j_fieldref: + ss << "FieldRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; + break; + case j_methodref: + ss << "MethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; + break; + case j_interface_methodref: + ss << "IfMethodRef: " << ref_type.class_idx << " " << ref_type.name_and_type_idx; + break; + case j_class: + ss << "Class: " << ref_type.class_idx; + break; + case j_nameandtype: + ss << "NameAndType: " << name_and_type.name_index << " " + << name_and_type.descriptor_index; + break; } + return ss.str(); + } - std::string str_data; /** String data in 'modified utf-8'.*/ - // store everything here. - union + 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; + struct { - int32_t int_data; - int64_t long_data; - float float_data; - double double_data; - uint16_t index; - struct - { - /** - * 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; - } ref_type; - struct - { - uint16_t name_index; - uint16_t descriptor_index; - } name_and_type; - }; + /** + * 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; + } ref_type; + struct + { + uint16_t name_index; + uint16_t descriptor_index; + } name_and_type; }; +}; +/** + * A helper class that represents the custom container used in Java class file for storage of + * constants + */ +class constant_pool +{ +public: + /** + * Create a pool of constants + */ + constant_pool() + { + } /** - * A helper class that represents the custom container used in Java class file for storage of constants + * Load a java constant pool */ - class constant_pool + void load(util::membuffer &buf) { - public: - /** - * Create a pool of constants - */ - constant_pool(){} - /** - * Load a java constant pool - */ - void load(util::membuffer & buf) + uint16_t length = 0; + buf.read_be(length); + length--; + uint16_t index = 1; + const constant *last_constant = nullptr; + while (length) { - uint16_t length = 0; - buf.read_be(length); - length --; - uint16_t index = 1; - 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::j_double || + last_constant->type == constant::j_long) { - const constant & cnst = constant(buf); - constants.push_back(cnst); - last_constant = &constants[constants.size() - 1]; - if(last_constant->type == constant::j_double || last_constant->type == constant::j_long) - { - // push in a fake constant to preserve indexing - constants.push_back(constant(0)); - length-=2; - index+=2; - } - else - { - length--; - index++; - } + // push in a fake constant to preserve indexing + constants.push_back(constant(0)); + length -= 2; + index += 2; } - } - typedef std::vector 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()) + else { - throw new classfile_exception(); + length--; + index++; } - return constants[constant_index - 1]; - }; - container_type::const_iterator begin() const - { - return constants.begin(); - }; - container_type::const_iterator end() const + } + } + typedef std::vector 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()) { - return constants.end(); + throw new classfile_exception(); } - private: - container_type constants; - }; + 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; +}; } diff --git a/depends/classparser/src/errors.h b/depends/classparser/src/errors.h index c02b07c8..ddbbd828 100644 --- a/depends/classparser/src/errors.h +++ b/depends/classparser/src/errors.h @@ -2,5 +2,7 @@ #include namespace java { - class classfile_exception : public std::exception {}; +class classfile_exception : public std::exception +{ +}; } diff --git a/depends/classparser/src/javaendian.h b/depends/classparser/src/javaendian.h index fa6207fe..d488b382 100644 --- a/depends/classparser/src/javaendian.h +++ b/depends/classparser/src/javaendian.h @@ -10,53 +10,67 @@ namespace util inline uint64_t bigswap(uint64_t x) { return x; -}; +} +; inline uint32_t bigswap(uint32_t x) { return x; -}; +} +; inline uint16_t bigswap(uint16_t x) { return x; -}; +} +; inline int64_t bigswap(int64_t x) { return x; -}; +} +; inline int32_t bigswap(int32_t x) { return x; -}; +} +; inline int16_t bigswap(int16_t 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 } diff --git a/depends/classparser/src/javautils.cpp b/depends/classparser/src/javautils.cpp index 3a5c6934..9f9ac263 100644 --- a/depends/classparser/src/javautils.cpp +++ b/depends/classparser/src/javautils.cpp @@ -49,24 +49,28 @@ QString GetMinecraftJarVersion(QString jarName) Minecraft.read(classfile, size); // parse Minecraft.class - try { + 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++) + for (java::constant_pool::container_type::const_iterator iter = constants.begin(); + iter != constants.end(); iter++) { - const java::constant & constant = *iter; + const java::constant &constant = *iter; if (constant.type != java::constant::j_string_data) continue; - const std::string & str = constant.str_data; + const std::string &str = constant.str_data; if (str.compare(0, 20, "Minecraft Minecraft ") == 0) { version = str.substr(20).data(); break; } } - } catch(java::classfile_exception &) {} + } + catch (java::classfile_exception &) + { + } // clean up delete[] classfile; @@ -76,5 +80,4 @@ QString GetMinecraftJarVersion(QString jarName) return version; } - } diff --git a/depends/classparser/src/membuffer.h b/depends/classparser/src/membuffer.h index 2ea3a69b..ab83412a 100644 --- a/depends/classparser/src/membuffer.h +++ b/depends/classparser/src/membuffer.h @@ -7,58 +7,57 @@ namespace util { - class membuffer +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 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 void read_be(T &val) { - 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 - 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 - 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; - }; + 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; +}; } -- cgit v1.2.3