479 lines
15 KiB
C++
479 lines
15 KiB
C++
/**
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* @file lltextvalidate.cpp
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* @brief Text validation helper functions
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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// Text editor widget to let users enter a single line.
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#include "linden_common.h"
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#include "lltextvalidate.h"
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#include "llnotificationsutil.h"
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#include "lltrans.h"
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#include "llresmgr.h" // for LLLocale
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namespace LLTextValidate
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{
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static S32 strtol(const std::string& str) { return ::strtol(str.c_str(), NULL, 10); }
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static S32 strtol(const LLWString& str) { return ::strtol(wstring_to_utf8str(str).c_str(), NULL, 10); }
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static LLSD llsd(const std::string& str) { return LLSD(str); }
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static LLSD llsd(const LLWString& str) { return LLSD(wstring_to_utf8str(str)); }
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template <class CHAR>
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LLSD llsd(CHAR ch) { return llsd(std::basic_string<CHAR>(1, ch)); }
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void ValidatorImpl::setLastErrorShowTime()
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{
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mLastErrorShowTime = (U32Seconds)LLTimer::getTotalTime();
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}
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void Validator::showLastErrorUsingTimeout(U32 timeout)
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{
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if (mImpl && (U32Seconds)LLTimer::getTotalTime() >= mImpl->getLastErrorShowTime() + timeout)
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{
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mImpl->setLastErrorShowTime();
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std::string reason = LLTrans::getString(mImpl->getLastErrorName(), mImpl->getLastErrorValues());
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LLNotificationsUtil::add("InvalidKeystroke", LLSD().with("REASON", reason));
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}
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}
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// Limits what characters can be used to [1234567890.-] with [-] only valid in the first position.
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// Does NOT ensure that the string is a well-formed number--that's the job of post-validation--for
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// the simple reasons that intermediate states may be invalid even if the final result is valid.
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class ValidatorFloat : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR> &str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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std::basic_string<CHAR> trimmed = str;
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LLStringUtilBase<CHAR>::trim(trimmed);
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S32 len = trimmed.length();
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if (0 < len)
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{
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// May be a comma or period, depending on the locale
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CHAR decimal_point = LLResMgr::getInstance()->getDecimalPoint();
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S32 i = 0;
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// First character can be a negative sign
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if ('-' == trimmed.front())
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{
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i++;
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}
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for (; i < len; i++)
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{
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CHAR ch = trimmed[i];
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if ((decimal_point != ch) && !LLStringOps::isDigit(ch))
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{
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return setError("Validator_ShouldBeDigitOrDot", LLSD().with("NR", i + 1).with("CH", llsd(ch)));
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}
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorFloatImpl;
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Validator validateFloat(validatorFloatImpl);
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// Limits what characters can be used to [1234567890-] with [-] only valid in the first position.
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// Does NOT ensure that the string is a well-formed number--that's the job of post-validation--for
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// the simple reasons that intermediate states may be invalid even if the final result is valid.
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class ValidatorInt : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR> &str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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std::basic_string<CHAR> trimmed = str;
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LLStringUtilBase<CHAR>::trim(trimmed);
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S32 len = trimmed.length();
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if (0 < len)
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{
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S32 i = 0;
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// First character can be a negative sign
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if ('-' == trimmed.front())
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{
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i++;
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}
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for (; i < len; i++)
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{
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CHAR ch = trimmed[i];
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if (!LLStringOps::isDigit(ch))
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{
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return setError("Validator_ShouldBeDigit", LLSD().with("NR", i + 1).with("CH", llsd(ch)));
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}
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorIntImpl;
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Validator validateInt(validatorIntImpl);
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class ValidatorPositiveS32 : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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std::basic_string<CHAR> trimmed = str;
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LLStringUtilBase<CHAR>::trim(trimmed);
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S32 len = trimmed.length();
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if (0 < len)
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{
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CHAR ch = trimmed.front();
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if (('-' == ch) || ('0' == ch))
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{
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return setError("Validator_ShouldNotBeMinusOrZero", LLSD().with("CH", llsd(ch)));
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}
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for (S32 i = 0; i < len; ++i)
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{
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ch = trimmed[i];
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if (!LLStringOps::isDigit(ch))
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{
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return setError("Validator_ShouldBeDigit", LLSD().with("NR", i + 1).with("CH", llsd(ch)));
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}
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}
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}
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S32 val = strtol(trimmed);
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if (val <= 0)
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{
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return setError("Validator_InvalidNumericString", LLSD().with("STR", llsd(trimmed)));
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorPositiveS32Impl;
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Validator validatePositiveS32(validatorPositiveS32Impl);
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class ValidatorNonNegativeS32 : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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std::basic_string<CHAR> trimmed = str;
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LLStringUtilBase<CHAR>::trim(trimmed);
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S32 len = trimmed.length();
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if (0 < len)
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{
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CHAR ch = trimmed.front();
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if ('-' == ch)
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{
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return setError("Validator_ShouldNotBeMinus", LLSD().with("CH", llsd(ch)));
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}
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for (S32 i = 0; i < len; ++i)
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{
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ch = trimmed[i];
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if (!LLStringOps::isDigit(ch))
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{
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return setError("Validator_ShouldBeDigit", LLSD().with("NR", i + 1).with("CH", llsd(ch)));
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}
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}
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}
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S32 val = strtol(trimmed);
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if (val < 0)
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{
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return setError("Validator_InvalidNumericString", LLSD().with("STR", llsd(trimmed)));
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorNonNegativeS32Impl;
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Validator validateNonNegativeS32(validatorNonNegativeS32Impl);
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class ValidatorNonNegativeS32NoSpace : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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std::basic_string<CHAR> test_str = str;
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S32 len = test_str.length();
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if (0 < len)
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{
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CHAR ch = test_str.front();
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if ('-' == ch)
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{
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return setError("Validator_ShouldNotBeMinus", LLSD().with("CH", llsd(ch)));
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}
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for (S32 i = 0; i < len; ++i)
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{
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ch = test_str[i];
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if (!LLStringOps::isDigit(ch) || LLStringOps::isSpace(ch))
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{
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return setError("Validator_ShouldBeDigitNotSpace", LLSD().with("NR", i + 1).with("CH", llsd(ch)));
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}
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}
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}
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S32 val = strtol(test_str);
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if (val < 0)
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{
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return setError("Validator_InvalidNumericString", LLSD().with("STR", llsd(test_str)));
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorNonNegativeS32NoSpaceImpl;
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Validator validateNonNegativeS32NoSpace(validatorNonNegativeS32NoSpaceImpl);
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class ValidatorAlphaNum : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if (!LLStringOps::isAlnum(ch))
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{
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return setError("Validator_ShouldBeDigitOrAlpha", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorAlphaNumImpl;
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Validator validateAlphaNum(validatorAlphaNumImpl);
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class ValidatorAlphaNumSpace : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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LLLocale locale(LLLocale::USER_LOCALE);
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if (!LLStringOps::isAlnum(ch) && (' ' != ch))
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{
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return setError("Validator_ShouldBeDigitOrAlphaOrSpace", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorAlphaNumSpaceImpl;
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Validator validateAlphaNumSpace(validatorAlphaNumSpaceImpl);
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// Used for most names of things stored on the server, due to old file-formats
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// that used the pipe (|) for multiline text storage. Examples include
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// inventory item names, parcel names, object names, etc.
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class ValidatorASCIIPrintableNoPipe : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if (ch < 0x20 || ch > 0x7f || ch == '|' ||
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(ch != ' ' && !LLStringOps::isAlnum(ch) && !LLStringOps::isPunct(ch)))
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{
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return setError("Validator_ShouldBeDigitOrAlphaOrPunct", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorASCIIPrintableNoPipeImpl;
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Validator validateASCIIPrintableNoPipe(validatorASCIIPrintableNoPipeImpl);
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// Used for avatar names
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class ValidatorASCIIPrintableNoSpace : public ValidatorImpl
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if (ch <= 0x20 || ch > 0x7f || LLStringOps::isSpace(ch) ||
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(!LLStringOps::isAlnum(ch) && !LLStringOps::isPunct(ch)))
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{
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return setError("Validator_ShouldBeDigitOrAlphaOrPunctNotSpace", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorASCIIPrintableNoSpaceImpl;
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Validator validateASCIIPrintableNoSpace(validatorASCIIPrintableNoSpaceImpl);
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class ValidatorASCII : public ValidatorImpl
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{
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protected:
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if (ch < 0x20 || ch > 0x7f)
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{
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return setError("Validator_ShouldBeASCII", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorASCIIImpl;
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Validator validateASCII(validatorASCIIImpl);
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class ValidatorASCIINoLeadingSpace : public ValidatorASCII
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{
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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if (LLStringOps::isSpace(str.front()))
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{
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return false;
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}
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return ValidatorASCII::validate<CHAR>(str);
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorASCIINoLeadingSpaceImpl;
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Validator validateASCIINoLeadingSpace(validatorASCIINoLeadingSpaceImpl);
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class ValidatorASCIIWithNewLine : public ValidatorImpl
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{
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// Used for multiline text stored on the server.
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// Example is landmark description in Places SP.
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template <class CHAR>
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bool validate(const std::basic_string<CHAR>& str)
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{
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S32 len = str.length();
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while (len--)
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{
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CHAR ch = str[len];
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if ((ch < 0x20 && ch != 0xA) || ch > 0x7f)
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{
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return setError("Validator_ShouldBeNewLineOrASCII", LLSD().with("NR", len + 1).with("CH", llsd(ch)));
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}
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}
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return resetError();
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}
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public:
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/*virtual*/ bool validate(const std::string& str) override { return validate<char>(str); }
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/*virtual*/ bool validate(const LLWString& str) override { return validate<llwchar>(str); }
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} validatorASCIIWithNewLineImpl;
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Validator validateASCIIWithNewLine(validatorASCIIWithNewLineImpl);
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void Validators::declareValues()
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{
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declare("ascii", validateASCII);
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declare("float", validateFloat);
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declare("int", validateInt);
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declare("positive_s32", validatePositiveS32);
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declare("non_negative_s32", validateNonNegativeS32);
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declare("alpha_num", validateAlphaNum);
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declare("alpha_num_space", validateAlphaNumSpace);
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declare("ascii_printable_no_pipe", validateASCIIPrintableNoPipe);
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declare("ascii_printable_no_space", validateASCIIPrintableNoSpace);
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declare("ascii_with_newline", validateASCIIWithNewLine);
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}
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} // namespace LLTextValidate
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