diff options
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/serialize.cpp | 349 | ||||
-rw-r--r-- | src/util/serialize.h | 242 |
2 files changed, 0 insertions, 591 deletions
diff --git a/src/util/serialize.cpp b/src/util/serialize.cpp index 5b276668d..fd5cbda21 100644 --- a/src/util/serialize.cpp +++ b/src/util/serialize.cpp @@ -30,74 +30,6 @@ with this program; if not, write to the Free Software Foundation, Inc., FloatType g_serialize_f32_type = FLOATTYPE_UNKNOWN; -//// -//// BufReader -//// - -bool BufReader::getStringNoEx(std::string *val) -{ - u16 num_chars; - if (!getU16NoEx(&num_chars)) - return false; - - if (pos + num_chars > size) { - pos -= sizeof(num_chars); - return false; - } - - val->assign((const char *)data + pos, num_chars); - pos += num_chars; - - return true; -} - -bool BufReader::getWideStringNoEx(std::wstring *val) -{ - u16 num_chars; - if (!getU16NoEx(&num_chars)) - return false; - - if (pos + num_chars * 2 > size) { - pos -= sizeof(num_chars); - return false; - } - - for (size_t i = 0; i != num_chars; i++) { - val->push_back(readU16(data + pos)); - pos += 2; - } - - return true; -} - -bool BufReader::getLongStringNoEx(std::string *val) -{ - u32 num_chars; - if (!getU32NoEx(&num_chars)) - return false; - - if (pos + num_chars > size) { - pos -= sizeof(num_chars); - return false; - } - - val->assign((const char *)data + pos, num_chars); - pos += num_chars; - - return true; -} - -bool BufReader::getRawDataNoEx(void *val, size_t len) -{ - if (pos + len > size) - return false; - - memcpy(val, data + pos, len); - pos += len; - - return true; -} - //// //// String @@ -404,284 +336,3 @@ std::string deSerializeJsonStringIfNeeded(std::istream &is) return tmp_os.str(); } -//// -//// String/Struct conversions -//// - -bool deSerializeStringToStruct(std::string valstr, - std::string format, void *out, size_t olen) -{ - size_t len = olen; - std::vector<std::string *> strs_alloced; - std::string *str; - char *f, *snext; - size_t pos; - - char *s = &valstr[0]; - char *buf = new char[len]; - char *bufpos = buf; - - char *fmtpos, *fmt = &format[0]; - while ((f = strtok_r(fmt, ",", &fmtpos)) && s) { - fmt = nullptr; - - bool is_unsigned = false; - int width = 0; - char valtype = *f; - - width = (int)strtol(f + 1, &f, 10); - if (width && valtype == 's') - valtype = 'i'; - - switch (valtype) { - case 'u': - is_unsigned = true; - /* FALLTHROUGH */ - case 'i': - if (width == 16) { - bufpos += PADDING(bufpos, u16); - if ((bufpos - buf) + sizeof(u16) <= len) { - if (is_unsigned) - *(u16 *)bufpos = (u16)strtoul(s, &s, 10); - else - *(s16 *)bufpos = (s16)strtol(s, &s, 10); - } - bufpos += sizeof(u16); - } else if (width == 32) { - bufpos += PADDING(bufpos, u32); - if ((bufpos - buf) + sizeof(u32) <= len) { - if (is_unsigned) - *(u32 *)bufpos = (u32)strtoul(s, &s, 10); - else - *(s32 *)bufpos = (s32)strtol(s, &s, 10); - } - bufpos += sizeof(u32); - } else if (width == 64) { - bufpos += PADDING(bufpos, u64); - if ((bufpos - buf) + sizeof(u64) <= len) { - if (is_unsigned) - *(u64 *)bufpos = (u64)strtoull(s, &s, 10); - else - *(s64 *)bufpos = (s64)strtoll(s, &s, 10); - } - bufpos += sizeof(u64); - } - s = strchr(s, ','); - break; - case 'b': - snext = strchr(s, ','); - if (snext) - *snext++ = 0; - - bufpos += PADDING(bufpos, bool); - if ((bufpos - buf) + sizeof(bool) <= len) - *(bool *)bufpos = is_yes(std::string(s)); - bufpos += sizeof(bool); - - s = snext; - break; - case 'f': - bufpos += PADDING(bufpos, float); - if ((bufpos - buf) + sizeof(float) <= len) - *(float *)bufpos = strtof(s, &s); - bufpos += sizeof(float); - - s = strchr(s, ','); - break; - case 's': - while (*s == ' ' || *s == '\t') - s++; - if (*s++ != '"') //error, expected string - goto fail; - snext = s; - - while (snext[0] && !(snext[-1] != '\\' && snext[0] == '"')) - snext++; - *snext++ = 0; - - bufpos += PADDING(bufpos, std::string *); - - str = new std::string(s); - pos = 0; - while ((pos = str->find("\\\"", pos)) != std::string::npos) - str->erase(pos, 1); - - if ((bufpos - buf) + sizeof(std::string *) <= len) - *(std::string **)bufpos = str; - bufpos += sizeof(std::string *); - strs_alloced.push_back(str); - - s = *snext ? snext + 1 : nullptr; - break; - case 'v': - while (*s == ' ' || *s == '\t') - s++; - if (*s++ != '(') //error, expected vector - goto fail; - - if (width == 2) { - bufpos += PADDING(bufpos, v2f); - - if ((bufpos - buf) + sizeof(v2f) <= len) { - v2f *v = (v2f *)bufpos; - v->X = strtof(s, &s); - s++; - v->Y = strtof(s, &s); - } - - bufpos += sizeof(v2f); - } else if (width == 3) { - bufpos += PADDING(bufpos, v3f); - if ((bufpos - buf) + sizeof(v3f) <= len) { - v3f *v = (v3f *)bufpos; - v->X = strtof(s, &s); - s++; - v->Y = strtof(s, &s); - s++; - v->Z = strtof(s, &s); - } - - bufpos += sizeof(v3f); - } - s = strchr(s, ','); - break; - default: //error, invalid format specifier - goto fail; - } - - if (s && *s == ',') - s++; - - if ((size_t)(bufpos - buf) > len) //error, buffer too small - goto fail; - } - - if (f && *f) { //error, mismatched number of fields and values -fail: - for (size_t i = 0; i != strs_alloced.size(); i++) - delete strs_alloced[i]; - delete[] buf; - return false; - } - - memcpy(out, buf, olen); - delete[] buf; - return true; -} - -// Casts *buf to a signed or unsigned fixed-width integer of 'w' width -#define SIGN_CAST(w, buf) (is_unsigned ? *((u##w *) buf) : *((s##w *) buf)) - -bool serializeStructToString(std::string *out, - std::string format, void *value) -{ - std::ostringstream os; - std::string str; - char *f; - size_t strpos; - - char *bufpos = (char *) value; - char *fmtpos, *fmt = &format[0]; - while ((f = strtok_r(fmt, ",", &fmtpos))) { - fmt = nullptr; - bool is_unsigned = false; - int width = 0; - char valtype = *f; - - width = (int)strtol(f + 1, &f, 10); - if (width && valtype == 's') - valtype = 'i'; - - switch (valtype) { - case 'u': - is_unsigned = true; - /* FALLTHROUGH */ - case 'i': - if (width == 16) { - bufpos += PADDING(bufpos, u16); - os << SIGN_CAST(16, bufpos); - bufpos += sizeof(u16); - } else if (width == 32) { - bufpos += PADDING(bufpos, u32); - os << SIGN_CAST(32, bufpos); - bufpos += sizeof(u32); - } else if (width == 64) { - bufpos += PADDING(bufpos, u64); - os << SIGN_CAST(64, bufpos); - bufpos += sizeof(u64); - } - break; - case 'b': - bufpos += PADDING(bufpos, bool); - os << std::boolalpha << *((bool *) bufpos); - bufpos += sizeof(bool); - break; - case 'f': - bufpos += PADDING(bufpos, float); - os << *((float *) bufpos); - bufpos += sizeof(float); - break; - case 's': - bufpos += PADDING(bufpos, std::string *); - str = **((std::string **) bufpos); - - strpos = 0; - while ((strpos = str.find('"', strpos)) != std::string::npos) { - str.insert(strpos, 1, '\\'); - strpos += 2; - } - - os << str; - bufpos += sizeof(std::string *); - break; - case 'v': - if (width == 2) { - bufpos += PADDING(bufpos, v2f); - v2f *v = (v2f *) bufpos; - os << '(' << v->X << ", " << v->Y << ')'; - bufpos += sizeof(v2f); - } else { - bufpos += PADDING(bufpos, v3f); - v3f *v = (v3f *) bufpos; - os << '(' << v->X << ", " << v->Y << ", " << v->Z << ')'; - bufpos += sizeof(v3f); - } - break; - default: - return false; - } - os << ", "; - } - *out = os.str(); - - // Trim off the trailing comma and space - if (out->size() >= 2) - out->resize(out->size() - 2); - - return true; -} - -#undef SIGN_CAST - -//// -//// Other -//// - -std::string serializeHexString(const std::string &data, bool insert_spaces) -{ - std::string result; - result.reserve(data.size() * (2 + insert_spaces)); - - static const char hex_chars[] = "0123456789abcdef"; - - const size_t len = data.size(); - for (size_t i = 0; i != len; i++) { - u8 byte = data[i]; - result.push_back(hex_chars[(byte >> 4) & 0x0F]); - result.push_back(hex_chars[(byte >> 0) & 0x0F]); - if (insert_spaces && i != len - 1) - result.push_back(' '); - } - - return result; -} diff --git a/src/util/serialize.h b/src/util/serialize.h index a4b5a234a..a988a8f78 100644 --- a/src/util/serialize.h +++ b/src/util/serialize.h @@ -442,15 +442,9 @@ MAKE_STREAM_WRITE_FXN(video::SColor, ARGB8, 4); // Creates a string with the length as the first two bytes std::string serializeString(const std::string &plain); -// Creates a string with the length as the first two bytes from wide string -std::string serializeWideString(const std::wstring &plain); - // Reads a string with the length as the first two bytes std::string deSerializeString(std::istream &is); -// Reads a wide string with the length as the first two bytes -std::wstring deSerializeWideString(std::istream &is); - // Creates a string with the length as the first four bytes std::string serializeLongString(const std::string &plain); @@ -469,239 +463,3 @@ std::string serializeJsonStringIfNeeded(const std::string &s); // Parses a string serialized by serializeJsonStringIfNeeded. std::string deSerializeJsonStringIfNeeded(std::istream &is); - -// Creates a string consisting of the hexadecimal representation of `data` -std::string serializeHexString(const std::string &data, bool insert_spaces=false); - -// Creates a string containing comma delimited values of a struct whose layout is -// described by the parameter format -bool serializeStructToString(std::string *out, - std::string format, void *value); - -// Reads a comma delimited string of values into a struct whose layout is -// decribed by the parameter format -bool deSerializeStringToStruct(std::string valstr, - std::string format, void *out, size_t olen); - -//// -//// BufReader -//// - -#define MAKE_BUFREADER_GETNOEX_FXN(T, N, S) \ - inline bool get ## N ## NoEx(T *val) \ - { \ - if (pos + S > size) \ - return false; \ - *val = read ## N(data + pos); \ - pos += S; \ - return true; \ - } - -#define MAKE_BUFREADER_GET_FXN(T, N) \ - inline T get ## N() \ - { \ - T val; \ - if (!get ## N ## NoEx(&val)) \ - throw SerializationError("Attempted read past end of data"); \ - return val; \ - } - -class BufReader { -public: - BufReader(const u8 *data_, size_t size_) : - data(data_), - size(size_) - { - } - - MAKE_BUFREADER_GETNOEX_FXN(u8, U8, 1); - MAKE_BUFREADER_GETNOEX_FXN(u16, U16, 2); - MAKE_BUFREADER_GETNOEX_FXN(u32, U32, 4); - MAKE_BUFREADER_GETNOEX_FXN(u64, U64, 8); - MAKE_BUFREADER_GETNOEX_FXN(s8, S8, 1); - MAKE_BUFREADER_GETNOEX_FXN(s16, S16, 2); - MAKE_BUFREADER_GETNOEX_FXN(s32, S32, 4); - MAKE_BUFREADER_GETNOEX_FXN(s64, S64, 8); - MAKE_BUFREADER_GETNOEX_FXN(f32, F1000, 4); - MAKE_BUFREADER_GETNOEX_FXN(v2s16, V2S16, 4); - MAKE_BUFREADER_GETNOEX_FXN(v3s16, V3S16, 6); - MAKE_BUFREADER_GETNOEX_FXN(v2s32, V2S32, 8); - MAKE_BUFREADER_GETNOEX_FXN(v3s32, V3S32, 12); - MAKE_BUFREADER_GETNOEX_FXN(v3f, V3F1000, 12); - MAKE_BUFREADER_GETNOEX_FXN(video::SColor, ARGB8, 4); - - bool getStringNoEx(std::string *val); - bool getWideStringNoEx(std::wstring *val); - bool getLongStringNoEx(std::string *val); - bool getRawDataNoEx(void *data, size_t len); - - MAKE_BUFREADER_GET_FXN(u8, U8); - MAKE_BUFREADER_GET_FXN(u16, U16); - MAKE_BUFREADER_GET_FXN(u32, U32); - MAKE_BUFREADER_GET_FXN(u64, U64); - MAKE_BUFREADER_GET_FXN(s8, S8); - MAKE_BUFREADER_GET_FXN(s16, S16); - MAKE_BUFREADER_GET_FXN(s32, S32); - MAKE_BUFREADER_GET_FXN(s64, S64); - MAKE_BUFREADER_GET_FXN(f32, F1000); - MAKE_BUFREADER_GET_FXN(v2s16, V2S16); - MAKE_BUFREADER_GET_FXN(v3s16, V3S16); - MAKE_BUFREADER_GET_FXN(v2s32, V2S32); - MAKE_BUFREADER_GET_FXN(v3s32, V3S32); - MAKE_BUFREADER_GET_FXN(v3f, V3F1000); - MAKE_BUFREADER_GET_FXN(video::SColor, ARGB8); - MAKE_BUFREADER_GET_FXN(std::string, String); - MAKE_BUFREADER_GET_FXN(std::wstring, WideString); - MAKE_BUFREADER_GET_FXN(std::string, LongString); - - inline void getRawData(void *val, size_t len) - { - if (!getRawDataNoEx(val, len)) - throw SerializationError("Attempted read past end of data"); - } - - inline size_t remaining() - { - assert(pos <= size); - return size - pos; - } - - const u8 *data; - size_t size; - size_t pos = 0; -}; - -#undef MAKE_BUFREADER_GET_FXN -#undef MAKE_BUFREADER_GETNOEX_FXN - - -//// -//// Vector-based write routines -//// - -inline void putU8(std::vector<u8> *dest, u8 val) -{ - dest->push_back((val >> 0) & 0xFF); -} - -inline void putU16(std::vector<u8> *dest, u16 val) -{ - dest->push_back((val >> 8) & 0xFF); - dest->push_back((val >> 0) & 0xFF); -} - -inline void putU32(std::vector<u8> *dest, u32 val) -{ - dest->push_back((val >> 24) & 0xFF); - dest->push_back((val >> 16) & 0xFF); - dest->push_back((val >> 8) & 0xFF); - dest->push_back((val >> 0) & 0xFF); -} - -inline void putU64(std::vector<u8> *dest, u64 val) -{ - dest->push_back((val >> 56) & 0xFF); - dest->push_back((val >> 48) & 0xFF); - dest->push_back((val >> 40) & 0xFF); - dest->push_back((val >> 32) & 0xFF); - dest->push_back((val >> 24) & 0xFF); - dest->push_back((val >> 16) & 0xFF); - dest->push_back((val >> 8) & 0xFF); - dest->push_back((val >> 0) & 0xFF); -} - -inline void putS8(std::vector<u8> *dest, s8 val) -{ - putU8(dest, val); -} - -inline void putS16(std::vector<u8> *dest, s16 val) -{ - putU16(dest, val); -} - -inline void putS32(std::vector<u8> *dest, s32 val) -{ - putU32(dest, val); -} - -inline void putS64(std::vector<u8> *dest, s64 val) -{ - putU64(dest, val); -} - -inline void putF1000(std::vector<u8> *dest, f32 val) -{ - putS32(dest, val * FIXEDPOINT_FACTOR); -} - -inline void putV2S16(std::vector<u8> *dest, v2s16 val) -{ - putS16(dest, val.X); - putS16(dest, val.Y); -} - -inline void putV3S16(std::vector<u8> *dest, v3s16 val) -{ - putS16(dest, val.X); - putS16(dest, val.Y); - putS16(dest, val.Z); -} - -inline void putV2S32(std::vector<u8> *dest, v2s32 val) -{ - putS32(dest, val.X); - putS32(dest, val.Y); -} - -inline void putV3S32(std::vector<u8> *dest, v3s32 val) -{ - putS32(dest, val.X); - putS32(dest, val.Y); - putS32(dest, val.Z); -} - -inline void putV3F1000(std::vector<u8> *dest, v3f val) -{ - putF1000(dest, val.X); - putF1000(dest, val.Y); - putF1000(dest, val.Z); -} - -inline void putARGB8(std::vector<u8> *dest, video::SColor val) -{ - putU32(dest, val.color); -} - -inline void putString(std::vector<u8> *dest, const std::string &val) -{ - if (val.size() > STRING_MAX_LEN) - throw SerializationError("String too long"); - - putU16(dest, val.size()); - dest->insert(dest->end(), val.begin(), val.end()); -} - -inline void putWideString(std::vector<u8> *dest, const std::wstring &val) -{ - if (val.size() > WIDE_STRING_MAX_LEN) - throw SerializationError("String too long"); - - putU16(dest, val.size()); - for (size_t i = 0; i != val.size(); i++) - putU16(dest, val[i]); -} - -inline void putLongString(std::vector<u8> *dest, const std::string &val) -{ - if (val.size() > LONG_STRING_MAX_LEN) - throw SerializationError("String too long"); - - putU32(dest, val.size()); - dest->insert(dest->end(), val.begin(), val.end()); -} - -inline void putRawData(std::vector<u8> *dest, const void *src, size_t len) -{ - dest->insert(dest->end(), (u8 *)src, (u8 *)src + len); -} |