diff options
Diffstat (limited to 'src/univalue/lib')
-rw-r--r-- | src/univalue/lib/univalue.cpp | 193 | ||||
-rw-r--r-- | src/univalue/lib/univalue_get.cpp | 147 | ||||
-rw-r--r-- | src/univalue/lib/univalue_read.cpp | 72 | ||||
-rw-r--r-- | src/univalue/lib/univalue_utffilter.h | 42 | ||||
-rw-r--r-- | src/univalue/lib/univalue_write.cpp | 2 |
5 files changed, 249 insertions, 207 deletions
diff --git a/src/univalue/lib/univalue.cpp b/src/univalue/lib/univalue.cpp index 5a2860c13f..d8ad7c4b90 100644 --- a/src/univalue/lib/univalue.cpp +++ b/src/univalue/lib/univalue.cpp @@ -4,75 +4,12 @@ // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include <stdint.h> -#include <errno.h> #include <iomanip> -#include <limits> #include <sstream> -#include <stdexcept> #include <stdlib.h> -#include <string.h> #include "univalue.h" -namespace -{ -static bool ParsePrechecks(const std::string& str) -{ - if (str.empty()) // No empty string allowed - return false; - if (str.size() >= 1 && (json_isspace(str[0]) || json_isspace(str[str.size()-1]))) // No padding allowed - return false; - if (str.size() != strlen(str.c_str())) // No embedded NUL characters allowed - return false; - return true; -} - -bool ParseInt32(const std::string& str, int32_t *out) -{ - if (!ParsePrechecks(str)) - return false; - char *endp = NULL; - errno = 0; // strtol will not set errno if valid - long int n = strtol(str.c_str(), &endp, 10); - if(out) *out = (int32_t)n; - // Note that strtol returns a *long int*, so even if strtol doesn't report a over/underflow - // we still have to check that the returned value is within the range of an *int32_t*. On 64-bit - // platforms the size of these types may be different. - return endp && *endp == 0 && !errno && - n >= std::numeric_limits<int32_t>::min() && - n <= std::numeric_limits<int32_t>::max(); -} - -bool ParseInt64(const std::string& str, int64_t *out) -{ - if (!ParsePrechecks(str)) - return false; - char *endp = NULL; - errno = 0; // strtoll will not set errno if valid - long long int n = strtoll(str.c_str(), &endp, 10); - if(out) *out = (int64_t)n; - // Note that strtoll returns a *long long int*, so even if strtol doesn't report a over/underflow - // we still have to check that the returned value is within the range of an *int64_t*. - return endp && *endp == 0 && !errno && - n >= std::numeric_limits<int64_t>::min() && - n <= std::numeric_limits<int64_t>::max(); -} - -bool ParseDouble(const std::string& str, double *out) -{ - if (!ParsePrechecks(str)) - return false; - if (str.size() >= 2 && str[0] == '0' && str[1] == 'x') // No hexadecimal floats allowed - return false; - std::istringstream text(str); - text.imbue(std::locale::classic()); - double result; - text >> result; - if(out) *out = result; - return text.eof() && !text.fail(); -} -} - using namespace std; const UniValue NullUniValue; @@ -104,7 +41,7 @@ static bool validNumStr(const string& s) { string tokenVal; unsigned int consumed; - enum jtokentype tt = getJsonToken(tokenVal, consumed, s.c_str()); + enum jtokentype tt = getJsonToken(tokenVal, consumed, s.data(), s.data() + s.size()); return (tt == JTOK_NUMBER); } @@ -189,13 +126,22 @@ bool UniValue::push_backV(const std::vector<UniValue>& vec) return true; } +void UniValue::__pushKV(const std::string& key, const UniValue& val_) +{ + keys.push_back(key); + values.push_back(val_); +} + bool UniValue::pushKV(const std::string& key, const UniValue& val_) { if (typ != VOBJ) return false; - keys.push_back(key); - values.push_back(val_); + size_t idx; + if (findKey(key, idx)) + values[idx] = val_; + else + __pushKV(key, val_); return true; } @@ -204,30 +150,43 @@ bool UniValue::pushKVs(const UniValue& obj) if (typ != VOBJ || obj.typ != VOBJ) return false; - for (unsigned int i = 0; i < obj.keys.size(); i++) { - keys.push_back(obj.keys[i]); - values.push_back(obj.values.at(i)); - } + for (size_t i = 0; i < obj.keys.size(); i++) + __pushKV(obj.keys[i], obj.values.at(i)); return true; } -int UniValue::findKey(const std::string& key) const +void UniValue::getObjMap(std::map<std::string,UniValue>& kv) const +{ + if (typ != VOBJ) + return; + + kv.clear(); + for (size_t i = 0; i < keys.size(); i++) + kv[keys[i]] = values[i]; +} + +bool UniValue::findKey(const std::string& key, size_t& retIdx) const { - for (unsigned int i = 0; i < keys.size(); i++) { - if (keys[i] == key) - return (int) i; + for (size_t i = 0; i < keys.size(); i++) { + if (keys[i] == key) { + retIdx = i; + return true; + } } - return -1; + return false; } -bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t) +bool UniValue::checkObject(const std::map<std::string,UniValue::VType>& t) const { + if (typ != VOBJ) + return false; + for (std::map<std::string,UniValue::VType>::const_iterator it = t.begin(); it != t.end(); ++it) { - int idx = findKey(it->first); - if (idx < 0) + size_t idx = 0; + if (!findKey(it->first, idx)) return false; if (values.at(idx).getType() != it->second) @@ -242,14 +201,14 @@ const UniValue& UniValue::operator[](const std::string& key) const if (typ != VOBJ) return NullUniValue; - int index = findKey(key); - if (index < 0) + size_t index = 0; + if (!findKey(key, index)) return NullUniValue; return values.at(index); } -const UniValue& UniValue::operator[](unsigned int index) const +const UniValue& UniValue::operator[](size_t index) const { if (typ != VOBJ && typ != VARR) return NullUniValue; @@ -283,75 +242,3 @@ const UniValue& find_value(const UniValue& obj, const std::string& name) return NullUniValue; } -const std::vector<std::string>& UniValue::getKeys() const -{ - if (typ != VOBJ) - throw std::runtime_error("JSON value is not an object as expected"); - return keys; -} - -const std::vector<UniValue>& UniValue::getValues() const -{ - if (typ != VOBJ && typ != VARR) - throw std::runtime_error("JSON value is not an object or array as expected"); - return values; -} - -bool UniValue::get_bool() const -{ - if (typ != VBOOL) - throw std::runtime_error("JSON value is not a boolean as expected"); - return getBool(); -} - -const std::string& UniValue::get_str() const -{ - if (typ != VSTR) - throw std::runtime_error("JSON value is not a string as expected"); - return getValStr(); -} - -int UniValue::get_int() const -{ - if (typ != VNUM) - throw std::runtime_error("JSON value is not an integer as expected"); - int32_t retval; - if (!ParseInt32(getValStr(), &retval)) - throw std::runtime_error("JSON integer out of range"); - return retval; -} - -int64_t UniValue::get_int64() const -{ - if (typ != VNUM) - throw std::runtime_error("JSON value is not an integer as expected"); - int64_t retval; - if (!ParseInt64(getValStr(), &retval)) - throw std::runtime_error("JSON integer out of range"); - return retval; -} - -double UniValue::get_real() const -{ - if (typ != VNUM) - throw std::runtime_error("JSON value is not a number as expected"); - double retval; - if (!ParseDouble(getValStr(), &retval)) - throw std::runtime_error("JSON double out of range"); - return retval; -} - -const UniValue& UniValue::get_obj() const -{ - if (typ != VOBJ) - throw std::runtime_error("JSON value is not an object as expected"); - return *this; -} - -const UniValue& UniValue::get_array() const -{ - if (typ != VARR) - throw std::runtime_error("JSON value is not an array as expected"); - return *this; -} - diff --git a/src/univalue/lib/univalue_get.cpp b/src/univalue/lib/univalue_get.cpp new file mode 100644 index 0000000000..eabcf2dad1 --- /dev/null +++ b/src/univalue/lib/univalue_get.cpp @@ -0,0 +1,147 @@ +// Copyright 2014 BitPay Inc. +// Copyright 2015 Bitcoin Core Developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include <stdint.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include <stdexcept> +#include <vector> +#include <limits> +#include <string> + +#include "univalue.h" + +namespace +{ +static bool ParsePrechecks(const std::string& str) +{ + if (str.empty()) // No empty string allowed + return false; + if (str.size() >= 1 && (json_isspace(str[0]) || json_isspace(str[str.size()-1]))) // No padding allowed + return false; + if (str.size() != strlen(str.c_str())) // No embedded NUL characters allowed + return false; + return true; +} + +bool ParseInt32(const std::string& str, int32_t *out) +{ + if (!ParsePrechecks(str)) + return false; + char *endp = NULL; + errno = 0; // strtol will not set errno if valid + long int n = strtol(str.c_str(), &endp, 10); + if(out) *out = (int32_t)n; + // Note that strtol returns a *long int*, so even if strtol doesn't report a over/underflow + // we still have to check that the returned value is within the range of an *int32_t*. On 64-bit + // platforms the size of these types may be different. + return endp && *endp == 0 && !errno && + n >= std::numeric_limits<int32_t>::min() && + n <= std::numeric_limits<int32_t>::max(); +} + +bool ParseInt64(const std::string& str, int64_t *out) +{ + if (!ParsePrechecks(str)) + return false; + char *endp = NULL; + errno = 0; // strtoll will not set errno if valid + long long int n = strtoll(str.c_str(), &endp, 10); + if(out) *out = (int64_t)n; + // Note that strtoll returns a *long long int*, so even if strtol doesn't report a over/underflow + // we still have to check that the returned value is within the range of an *int64_t*. + return endp && *endp == 0 && !errno && + n >= std::numeric_limits<int64_t>::min() && + n <= std::numeric_limits<int64_t>::max(); +} + +bool ParseDouble(const std::string& str, double *out) +{ + if (!ParsePrechecks(str)) + return false; + if (str.size() >= 2 && str[0] == '0' && str[1] == 'x') // No hexadecimal floats allowed + return false; + std::istringstream text(str); + text.imbue(std::locale::classic()); + double result; + text >> result; + if(out) *out = result; + return text.eof() && !text.fail(); +} +} + +const std::vector<std::string>& UniValue::getKeys() const +{ + if (typ != VOBJ) + throw std::runtime_error("JSON value is not an object as expected"); + return keys; +} + +const std::vector<UniValue>& UniValue::getValues() const +{ + if (typ != VOBJ && typ != VARR) + throw std::runtime_error("JSON value is not an object or array as expected"); + return values; +} + +bool UniValue::get_bool() const +{ + if (typ != VBOOL) + throw std::runtime_error("JSON value is not a boolean as expected"); + return getBool(); +} + +const std::string& UniValue::get_str() const +{ + if (typ != VSTR) + throw std::runtime_error("JSON value is not a string as expected"); + return getValStr(); +} + +int UniValue::get_int() const +{ + if (typ != VNUM) + throw std::runtime_error("JSON value is not an integer as expected"); + int32_t retval; + if (!ParseInt32(getValStr(), &retval)) + throw std::runtime_error("JSON integer out of range"); + return retval; +} + +int64_t UniValue::get_int64() const +{ + if (typ != VNUM) + throw std::runtime_error("JSON value is not an integer as expected"); + int64_t retval; + if (!ParseInt64(getValStr(), &retval)) + throw std::runtime_error("JSON integer out of range"); + return retval; +} + +double UniValue::get_real() const +{ + if (typ != VNUM) + throw std::runtime_error("JSON value is not a number as expected"); + double retval; + if (!ParseDouble(getValStr(), &retval)) + throw std::runtime_error("JSON double out of range"); + return retval; +} + +const UniValue& UniValue::get_obj() const +{ + if (typ != VOBJ) + throw std::runtime_error("JSON value is not an object as expected"); + return *this; +} + +const UniValue& UniValue::get_array() const +{ + if (typ != VARR) + throw std::runtime_error("JSON value is not an array as expected"); + return *this; +} + diff --git a/src/univalue/lib/univalue_read.cpp b/src/univalue/lib/univalue_read.cpp index 95bac6958d..ae75cb462a 100644 --- a/src/univalue/lib/univalue_read.cpp +++ b/src/univalue/lib/univalue_read.cpp @@ -43,21 +43,21 @@ static const char *hatoui(const char *first, const char *last, } enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed, - const char *raw) + const char *raw, const char *end) { tokenVal.clear(); consumed = 0; const char *rawStart = raw; - while ((*raw) && (json_isspace(*raw))) // skip whitespace + while (raw < end && (json_isspace(*raw))) // skip whitespace raw++; - switch (*raw) { - - case 0: + if (raw >= end) return JTOK_NONE; + switch (*raw) { + case '{': raw++; consumed = (raw - rawStart); @@ -127,40 +127,40 @@ enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed, numStr += *raw; // copy first char raw++; - if ((*first == '-') && (!json_isdigit(*raw))) + if ((*first == '-') && (raw < end) && (!json_isdigit(*raw))) return JTOK_ERR; - while ((*raw) && json_isdigit(*raw)) { // copy digits + while (raw < end && json_isdigit(*raw)) { // copy digits numStr += *raw; raw++; } // part 2: frac - if (*raw == '.') { + if (raw < end && *raw == '.') { numStr += *raw; // copy . raw++; - if (!json_isdigit(*raw)) + if (raw >= end || !json_isdigit(*raw)) return JTOK_ERR; - while ((*raw) && json_isdigit(*raw)) { // copy digits + while (raw < end && json_isdigit(*raw)) { // copy digits numStr += *raw; raw++; } } // part 3: exp - if (*raw == 'e' || *raw == 'E') { + if (raw < end && (*raw == 'e' || *raw == 'E')) { numStr += *raw; // copy E raw++; - if (*raw == '-' || *raw == '+') { // copy +/- + if (raw < end && (*raw == '-' || *raw == '+')) { // copy +/- numStr += *raw; raw++; } - if (!json_isdigit(*raw)) + if (raw >= end || !json_isdigit(*raw)) return JTOK_ERR; - while ((*raw) && json_isdigit(*raw)) { // copy digits + while (raw < end && json_isdigit(*raw)) { // copy digits numStr += *raw; raw++; } @@ -177,13 +177,16 @@ enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed, string valStr; JSONUTF8StringFilter writer(valStr); - while (*raw) { - if ((unsigned char)*raw < 0x20) + while (true) { + if (raw >= end || (unsigned char)*raw < 0x20) return JTOK_ERR; else if (*raw == '\\') { raw++; // skip backslash + if (raw >= end) + return JTOK_ERR; + switch (*raw) { case '"': writer.push_back('\"'); break; case '\\': writer.push_back('\\'); break; @@ -196,7 +199,8 @@ enum jtokentype getJsonToken(string& tokenVal, unsigned int& consumed, case 'u': { unsigned int codepoint; - if (hatoui(raw + 1, raw + 1 + 4, codepoint) != + if (raw + 1 + 4 >= end || + hatoui(raw + 1, raw + 1 + 4, codepoint) != raw + 1 + 4) return JTOK_ERR; writer.push_back_u(codepoint); @@ -246,7 +250,7 @@ enum expect_bits { #define setExpect(bit) (expectMask |= EXP_##bit) #define clearExpect(bit) (expectMask &= ~EXP_##bit) -bool UniValue::read(const char *raw) +bool UniValue::read(const char *raw, size_t size) { clear(); @@ -257,10 +261,11 @@ bool UniValue::read(const char *raw) unsigned int consumed; enum jtokentype tok = JTOK_NONE; enum jtokentype last_tok = JTOK_NONE; + const char* end = raw + size; do { last_tok = tok; - tok = getJsonToken(tokenVal, consumed, raw); + tok = getJsonToken(tokenVal, consumed, raw, end); if (tok == JTOK_NONE || tok == JTOK_ERR) return false; raw += consumed; @@ -371,9 +376,6 @@ bool UniValue::read(const char *raw) case JTOK_KW_NULL: case JTOK_KW_TRUE: case JTOK_KW_FALSE: { - if (!stack.size()) - return false; - UniValue tmpVal; switch (tok) { case JTOK_KW_NULL: @@ -388,6 +390,11 @@ bool UniValue::read(const char *raw) default: /* impossible */ break; } + if (!stack.size()) { + *this = tmpVal; + break; + } + UniValue *top = stack.back(); top->values.push_back(tmpVal); @@ -396,10 +403,12 @@ bool UniValue::read(const char *raw) } case JTOK_NUMBER: { - if (!stack.size()) - return false; - UniValue tmpVal(VNUM, tokenVal); + if (!stack.size()) { + *this = tmpVal; + break; + } + UniValue *top = stack.back(); top->values.push_back(tmpVal); @@ -408,17 +417,18 @@ bool UniValue::read(const char *raw) } case JTOK_STRING: { - if (!stack.size()) - return false; - - UniValue *top = stack.back(); - if (expect(OBJ_NAME)) { + UniValue *top = stack.back(); top->keys.push_back(tokenVal); clearExpect(OBJ_NAME); setExpect(COLON); } else { UniValue tmpVal(VSTR, tokenVal); + if (!stack.size()) { + *this = tmpVal; + break; + } + UniValue *top = stack.back(); top->values.push_back(tmpVal); } @@ -432,7 +442,7 @@ bool UniValue::read(const char *raw) } while (!stack.empty ()); /* Check that nothing follows the initial construct (parsed above). */ - tok = getJsonToken(tokenVal, consumed, raw); + tok = getJsonToken(tokenVal, consumed, raw, end); if (tok != JTOK_NONE) return false; diff --git a/src/univalue/lib/univalue_utffilter.h b/src/univalue/lib/univalue_utffilter.h index 2fb6a492d1..20d4043009 100644 --- a/src/univalue/lib/univalue_utffilter.h +++ b/src/univalue/lib/univalue_utffilter.h @@ -46,19 +46,19 @@ public: } } // Write codepoint directly, possibly collating surrogate pairs - void push_back_u(unsigned int codepoint) + void push_back_u(unsigned int codepoint_) { if (state) // Only accept full codepoints in open state is_valid = false; - if (codepoint >= 0xD800 && codepoint < 0xDC00) { // First half of surrogate pair + if (codepoint_ >= 0xD800 && codepoint_ < 0xDC00) { // First half of surrogate pair if (surpair) // Two subsequent surrogate pair openers - fail is_valid = false; else - surpair = codepoint; - } else if (codepoint >= 0xDC00 && codepoint < 0xE000) { // Second half of surrogate pair + surpair = codepoint_; + } else if (codepoint_ >= 0xDC00 && codepoint_ < 0xE000) { // Second half of surrogate pair if (surpair) { // Open surrogate pair, expect second half // Compute code point from UTF-16 surrogate pair - append_codepoint(0x10000 | ((surpair - 0xD800)<<10) | (codepoint - 0xDC00)); + append_codepoint(0x10000 | ((surpair - 0xD800)<<10) | (codepoint_ - 0xDC00)); surpair = 0; } else // Second half doesn't follow a first half - fail is_valid = false; @@ -66,7 +66,7 @@ public: if (surpair) // First half of surrogate pair not followed by second - fail is_valid = false; else - append_codepoint(codepoint); + append_codepoint(codepoint_); } } // Check that we're in a state where the string can be ended @@ -96,22 +96,22 @@ private: // Two subsequent \u.... may have to be replaced with one actual codepoint. unsigned int surpair; // First half of open UTF-16 surrogate pair, or 0 - void append_codepoint(unsigned int codepoint) + void append_codepoint(unsigned int codepoint_) { - if (codepoint <= 0x7f) - str.push_back((char)codepoint); - else if (codepoint <= 0x7FF) { - str.push_back((char)(0xC0 | (codepoint >> 6))); - str.push_back((char)(0x80 | (codepoint & 0x3F))); - } else if (codepoint <= 0xFFFF) { - str.push_back((char)(0xE0 | (codepoint >> 12))); - str.push_back((char)(0x80 | ((codepoint >> 6) & 0x3F))); - str.push_back((char)(0x80 | (codepoint & 0x3F))); - } else if (codepoint <= 0x1FFFFF) { - str.push_back((char)(0xF0 | (codepoint >> 18))); - str.push_back((char)(0x80 | ((codepoint >> 12) & 0x3F))); - str.push_back((char)(0x80 | ((codepoint >> 6) & 0x3F))); - str.push_back((char)(0x80 | (codepoint & 0x3F))); + if (codepoint_ <= 0x7f) + str.push_back((char)codepoint_); + else if (codepoint_ <= 0x7FF) { + str.push_back((char)(0xC0 | (codepoint_ >> 6))); + str.push_back((char)(0x80 | (codepoint_ & 0x3F))); + } else if (codepoint_ <= 0xFFFF) { + str.push_back((char)(0xE0 | (codepoint_ >> 12))); + str.push_back((char)(0x80 | ((codepoint_ >> 6) & 0x3F))); + str.push_back((char)(0x80 | (codepoint_ & 0x3F))); + } else if (codepoint_ <= 0x1FFFFF) { + str.push_back((char)(0xF0 | (codepoint_ >> 18))); + str.push_back((char)(0x80 | ((codepoint_ >> 12) & 0x3F))); + str.push_back((char)(0x80 | ((codepoint_ >> 6) & 0x3F))); + str.push_back((char)(0x80 | (codepoint_ & 0x3F))); } } }; diff --git a/src/univalue/lib/univalue_write.cpp b/src/univalue/lib/univalue_write.cpp index cfbdad3284..cf27835991 100644 --- a/src/univalue/lib/univalue_write.cpp +++ b/src/univalue/lib/univalue_write.cpp @@ -79,8 +79,6 @@ void UniValue::writeArray(unsigned int prettyIndent, unsigned int indentLevel, s s += values[i].write(prettyIndent, indentLevel + 1); if (i != (values.size() - 1)) { s += ","; - if (prettyIndent) - s += " "; } if (prettyIndent) s += "\n"; |