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cuberite-2a/src/IniFile.cpp

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// IniFile.cpp: Implementation of the CIniFile class.
// Written by: Adam Clauss
// Email: cabadam@houston.rr.com
// You may use this class / code as you wish in your programs. Feel free to distribute it, and
// email suggested changes to me.
//
// Rewritten by: Shane Hill
// Date: 2001-08-21
// Email: Shane.Hill@dsto.defence.gov.au
// Reason: Remove dependancy on MFC. Code should compile on any
// platform.
////////////////////////////////////////////////////////////////////////////////
/*
!! MODIFIED BY FAKETRUTH and xoft !!
*/
#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
// C++ Includes
#include <fstream>
// C Includes
#include <ctype.h>
// Local Includes
#include "IniFile.h"
#if defined(WIN32)
#define iniEOL endl
#else
#define iniEOL '\r' << endl
#endif
using namespace std;
cIniFile::cIniFile(void) :
m_IsCaseInsensitive(true)
{
}
bool cIniFile::ReadFile(const AString & a_FileName, bool a_AllowExampleRedirect)
{
m_Filename = a_FileName;
// Normally you would use ifstream, but the SGI CC compiler has
// a few bugs with ifstream. So ... fstream used.
fstream f;
AString line;
AString keyname, valuename, value;
AString::size_type pLeft, pRight;
bool IsFromExampleRedirect = false;
f.open((a_FileName).c_str(), ios::in);
if (f.fail())
{
f.clear();
if (a_AllowExampleRedirect)
{
// Retry with the .example.ini file instead of .ini:
AString ExPath(a_FileName.substr(0, a_FileName.length() - 4));
ExPath.append(".example.ini");
f.open((ExPath).c_str(), ios::in);
if (f.fail())
{
return false;
}
IsFromExampleRedirect = true;
}
else
{
return false;
}
}
bool IsFirstLine = true;
while (getline(f, line))
{
// To be compatible with Win32, check for existence of '\r'.
// Win32 files have the '\r' and Unix files don't at the end of a line.
// Note that the '\r' will be written to INI files from
// Unix so that the created INI file can be read under Win32
// without change.
// Removes UTF-8 Byte Order Markers (BOM) if, present.
if (IsFirstLine)
{
RemoveBom(line);
IsFirstLine = false;
}
size_t lineLength = line.length();
if (lineLength == 0)
{
continue;
}
if (line[lineLength - 1] == '\r')
{
line = line.substr(0, lineLength - 1);
}
if (line.length() == 0)
{
continue;
}
// Check that the user hasn't opened a binary file by checking the first
// character of each line!
if (!isprint(line[0]))
{
printf("%s: Binary-check failed on char %d\n", __FUNCTION__, line[0]);
f.close();
return false;
}
if ((pLeft = line.find_first_of(";#[=")) == AString::npos)
{
continue;
}
switch (line[pLeft])
{
case '[':
{
if (
((pRight = line.find_last_of("]")) != AString::npos) &&
(pRight > pLeft)
)
{
keyname = line.substr(pLeft + 1, pRight - pLeft - 1);
AddKeyName(keyname);
}
break;
}
case '=':
{
valuename = line.substr(0, pLeft);
value = TrimString(line.substr(pLeft + 1));
AddValue(keyname, valuename, value);
break;
}
case ';':
case '#':
{
if (m_Names.empty())
{
AddHeaderComment(line.substr(pLeft + 1));
}
else
{
AddKeyComment(keyname, line.substr(pLeft + 1));
}
break;
}
} // switch (line[pLeft])
} // while (getline())
f.close();
if (m_Keys.empty() && m_Names.empty() && m_Comments.empty())
{
// File be empty or unreadable, equivalent to nonexistant
return false;
}
if (IsFromExampleRedirect)
{
WriteFile(a_FileName);
}
return true;
}
bool cIniFile::WriteFile(const AString & a_FileName) const
{
// Normally you would use ofstream, but the SGI CC compiler has
// a few bugs with ofstream. So ... fstream used.
fstream f;
f.open((a_FileName).c_str(), ios::out);
if (f.fail())
{
return false;
}
// Write header comments.
size_t NumComments = m_Comments.size();
for (size_t commentID = 0; commentID < NumComments; ++commentID)
{
f << ';' << m_Comments[commentID] << iniEOL;
}
if (NumComments > 0)
{
f << iniEOL;
}
// Write keys and values.
for (size_t keyID = 0; keyID < m_Keys.size(); ++keyID)
{
f << '[' << m_Names[keyID] << ']' << iniEOL;
// Comments.
for (size_t commentID = 0; commentID < m_Keys[keyID].m_Comments.size(); ++commentID)
{
f << ';' << m_Keys[keyID].m_Comments[commentID] << iniEOL;
}
// Values.
for (size_t valueID = 0; valueID < m_Keys[keyID].m_Names.size(); ++valueID)
{
f << m_Keys[keyID].m_Names[valueID] << '=' << m_Keys[keyID].m_Values[valueID] << iniEOL;
}
f << iniEOL;
}
f.close();
return true;
}
int cIniFile::FindKey(const AString & a_KeyName) const
{
AString CaseKeyName = CheckCase(a_KeyName);
for (size_t keyID = 0; keyID < m_Names.size(); ++keyID)
{
if (CheckCase(m_Names[keyID]) == CaseKeyName)
{
return static_cast<int>(keyID);
}
}
return noID;
}
int cIniFile::FindValue(const int keyID, const AString & a_ValueName) const
{
if (!m_Keys.size() || (keyID >= static_cast<int>(m_Keys.size())))
{
return noID;
}
AString CaseValueName = CheckCase(a_ValueName);
for (size_t valueID = 0; valueID < m_Keys[static_cast<size_t>(keyID)].m_Names.size(); ++valueID)
{
if (CheckCase(m_Keys[static_cast<size_t>(keyID)].m_Names[valueID]) == CaseValueName)
{
return int(valueID);
}
}
return noID;
}
int cIniFile::AddKeyName(const AString & keyname)
{
m_Names.resize(m_Names.size() + 1, keyname);
m_Keys.resize(m_Keys.size() + 1);
return static_cast<int>(m_Names.size()) - 1;
}
AString cIniFile::GetKeyName(const int keyID) const
{
if (keyID < static_cast<int>(m_Names.size()))
{
return m_Names[static_cast<size_t>(keyID)];
}
else
{
return "";
}
}
int cIniFile::GetNumValues(const int keyID) const
{
if (keyID < static_cast<int>(m_Keys.size()))
{
return static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Names.size());
}
return 0;
}
int cIniFile::GetNumValues(const AString & keyname) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return 0;
}
return static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Names.size());
}
AString cIniFile::GetValueName(const int keyID, const int valueID) const
{
if ((keyID < static_cast<int>(m_Keys.size())) && (valueID < static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Names.size())))
{
return m_Keys[static_cast<size_t>(keyID)].m_Names[static_cast<size_t>(valueID)];
}
return "";
}
AString cIniFile::GetValueName(const AString & keyname, const int valueID) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return "";
}
return GetValueName(keyID, valueID);
}
void cIniFile::AddValue(const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value)
{
int keyID = FindKey(a_KeyName);
if (keyID == noID)
{
keyID = int(AddKeyName(a_KeyName));
}
m_Keys[static_cast<size_t>(keyID)].m_Names.push_back(a_ValueName);
m_Keys[static_cast<size_t>(keyID)].m_Values.push_back(a_Value);
}
void cIniFile::AddValueI(const AString & a_KeyName, const AString & a_ValueName, const int a_Value)
{
AddValue(a_KeyName, a_ValueName, Printf("%d", a_Value));
}
void cIniFile::AddValueF(const AString & a_KeyName, const AString & a_ValueName, const double a_Value)
{
AddValue(a_KeyName, a_ValueName, Printf("%f", a_Value));
}
bool cIniFile::SetValue(const int keyID, const int valueID, const AString & value)
{
if ((static_cast<size_t>(keyID) >= m_Keys.size()) || (static_cast<size_t>(valueID) >= m_Keys[static_cast<size_t>(keyID)].m_Names.size()))
{
return false;
}
m_Keys[static_cast<size_t>(keyID)].m_Values[static_cast<size_t>(valueID)] = value;
return true;
}
bool cIniFile::SetValue(const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value, const bool a_CreateIfNotExists)
{
int keyID = FindKey(a_KeyName);
if (keyID == noID)
{
if (!a_CreateIfNotExists)
{
return false;
}
keyID = AddKeyName(a_KeyName);
}
int valueID = FindValue(keyID, a_ValueName);
if (valueID == noID)
{
if (!a_CreateIfNotExists)
{
return false;
}
m_Keys[static_cast<size_t>(keyID)].m_Names.push_back(a_ValueName);
m_Keys[static_cast<size_t>(keyID)].m_Values.push_back(a_Value);
}
else
{
m_Keys[static_cast<size_t>(keyID)].m_Values[static_cast<size_t>(valueID)] = a_Value;
}
return true;
}
bool cIniFile::SetValueI(const AString & a_KeyName, const AString & a_ValueName, const int a_Value, const bool a_CreateIfNotExists)
{
return SetValue(a_KeyName, a_ValueName, Printf("%d", a_Value), a_CreateIfNotExists);
}
bool cIniFile::SetValueI(const AString & a_Keyname, const AString & a_ValueName, const Int64 a_Value, const bool a_CreateIfNotExists)
{
return SetValue(a_Keyname, a_ValueName, Printf("%lld", a_Value), a_CreateIfNotExists);
}
bool cIniFile::SetValueF(const AString & a_KeyName, const AString & a_ValueName, double const a_Value, const bool a_CreateIfNotExists)
{
return SetValue(a_KeyName, a_ValueName, Printf("%f", a_Value), a_CreateIfNotExists);
}
AString cIniFile::GetValue(const int keyID, const int valueID, const AString & defValue) const
{
if ((keyID < static_cast<int>(m_Keys.size())) && (valueID < static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Names.size())))
{
return m_Keys[static_cast<size_t>(keyID)].m_Values[static_cast<size_t>(valueID)];
}
return defValue;
}
AString cIniFile::GetValue(const AString & keyname, const AString & valuename, const AString & defValue) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return defValue;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
return defValue;
}
return m_Keys[static_cast<size_t>(keyID)].m_Values[static_cast<size_t>(valueID)];
}
int cIniFile::GetValueI(const AString & keyname, const AString & valuename, const int defValue) const
{
AString Data;
Printf(Data, "%d", defValue);
return atoi(GetValue(keyname, valuename, Data).c_str());
}
double cIniFile::GetValueF(const AString & keyname, const AString & valuename, double const defValue) const
{
AString Data;
Printf(Data, "%f", defValue);
return atof(GetValue(keyname, valuename, Data).c_str());
}
AString cIniFile::GetValueSet(const AString & keyname, const AString & valuename, const AString & defValue)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
SetValue(keyname, valuename, defValue);
return defValue;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
SetValue(keyname, valuename, defValue);
return defValue;
}
return m_Keys[static_cast<size_t>(keyID)].m_Values[static_cast<size_t>(valueID)];
}
double cIniFile::GetValueSetF(const AString & keyname, const AString & valuename, const double defValue)
{
AString Data;
Printf(Data, "%f", defValue);
return atof(GetValueSet(keyname, valuename, Data).c_str());
}
int cIniFile::GetValueSetI(const AString & keyname, const AString & valuename, const int defValue)
{
AString Data;
Printf(Data, "%d", defValue);
return atoi(GetValueSet(keyname, valuename, Data).c_str());
}
Int64 cIniFile::GetValueSetI(const AString & keyname, const AString & valuename, const Int64 defValue)
{
AString Data;
Printf(Data, "%lld", defValue);
AString resultstring = GetValueSet(keyname, valuename, Data);
Int64 result = defValue;
#ifdef _WIN32
sscanf_s(resultstring.c_str(), "%lld", &result);
#else
sscanf(resultstring.c_str(), "%lld", &result);
#endif
return result;
}
bool cIniFile::DeleteValueByID(const int keyID, const int valueID)
{
if ((keyID < static_cast<int>(m_Keys.size())) && (valueID < static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Names.size())))
{
// This looks strange, but is neccessary.
vector<AString>::iterator npos = m_Keys[static_cast<size_t>(keyID)].m_Names.begin() + valueID;
vector<AString>::iterator vpos = m_Keys[static_cast<size_t>(keyID)].m_Values.begin() + valueID;
m_Keys[static_cast<size_t>(keyID)].m_Names.erase(npos, npos + 1);
m_Keys[static_cast<size_t>(keyID)].m_Values.erase(vpos, vpos + 1);
return true;
}
return false;
}
bool cIniFile::DeleteValue(const AString & keyname, const AString & valuename)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
int valueID = FindValue(int(keyID), valuename);
if (valueID == noID)
{
return false;
}
return DeleteValueByID(keyID, valueID);
}
bool cIniFile::DeleteKey(const AString & keyname)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
vector<AString>::iterator npos = m_Names.begin() + keyID;
vector<key>::iterator kpos = m_Keys.begin() + keyID;
m_Names.erase(npos, npos + 1);
m_Keys.erase(kpos, kpos + 1);
return true;
}
void cIniFile::Clear(void)
{
m_Names.clear();
m_Keys.clear();
m_Comments.clear();
}
bool cIniFile::HasValue(const AString & a_KeyName, const AString & a_ValueName) const
{
// Find the key:
int keyID = FindKey(a_KeyName);
if (keyID == noID)
{
return false;
}
// Find the value:
int valueID = FindValue(keyID, a_ValueName);
return (valueID != noID);
}
void cIniFile::AddHeaderComment(const AString & comment)
{
m_Comments.push_back(comment);
// comments.resize(comments.size() + 1, comment);
}
AString cIniFile::GetHeaderComment(const int commentID) const
{
if (commentID < static_cast<int>(m_Comments.size()))
{
return m_Comments[static_cast<size_t>(commentID)];
}
return "";
}
bool cIniFile::DeleteHeaderComment(int commentID)
{
if (commentID < static_cast<int>(m_Comments.size()))
{
vector<AString>::iterator cpos = m_Comments.begin() + commentID;
m_Comments.erase(cpos, cpos + 1);
return true;
}
return false;
}
int cIniFile::GetNumKeyComments(const int keyID) const
{
if (keyID < static_cast<int>(m_Keys.size()))
{
return static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Comments.size());
}
return 0;
}
int cIniFile::GetNumKeyComments(const AString & keyname) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return 0;
}
return static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Comments.size());
}
bool cIniFile::AddKeyComment(const int keyID, const AString & comment)
{
if (keyID < static_cast<int>(m_Keys.size()))
{
m_Keys[static_cast<size_t>(keyID)].m_Comments.resize(m_Keys[static_cast<size_t>(keyID)].m_Comments.size() + 1, comment);
return true;
}
return false;
}
bool cIniFile::AddKeyComment(const AString & keyname, const AString & comment)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return AddKeyComment(keyID, comment);
}
AString cIniFile::GetKeyComment(const int keyID, const int commentID) const
{
if ((keyID < static_cast<int>(m_Keys.size())) && (commentID < static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Comments.size())))
{
return m_Keys[static_cast<size_t>(keyID)].m_Comments[static_cast<size_t>(commentID)];
}
return "";
}
AString cIniFile::GetKeyComment(const AString & keyname, const int commentID) const
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return "";
}
return GetKeyComment(int(keyID), commentID);
}
bool cIniFile::DeleteKeyComment(const int keyID, const int commentID)
{
if ((keyID < static_cast<int>(m_Keys.size())) && (commentID < static_cast<int>(m_Keys[static_cast<size_t>(keyID)].m_Comments.size())))
{
vector<AString>::iterator cpos = m_Keys[static_cast<size_t>(keyID)].m_Comments.begin() + commentID;
m_Keys[static_cast<size_t>(keyID)].m_Comments.erase(cpos, cpos + 1);
return true;
}
return false;
}
bool cIniFile::DeleteKeyComment(const AString & keyname, const int commentID)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return DeleteKeyComment(int(keyID), commentID);
}
bool cIniFile::DeleteKeyComments(const int keyID)
{
if (keyID < static_cast<int>(m_Keys.size()))
{
m_Keys[static_cast<size_t>(keyID)].m_Comments.clear();
return true;
}
return false;
}
bool cIniFile::DeleteKeyComments(const AString & keyname)
{
int keyID = FindKey(keyname);
if (keyID == noID)
{
return false;
}
return DeleteKeyComments(static_cast<int>(keyID));
}
AString cIniFile::CheckCase(const AString & s) const
{
if (!m_IsCaseInsensitive)
{
return s;
}
AString res(s);
size_t len = res.length();
for (size_t i = 0; i < len; i++)
{
res[i] = static_cast<char>(tolower(res[i]));
}
return res;
}
void cIniFile::RemoveBom(AString & a_line) const
{
// The BOM sequence for UTF-8 is 0xEF, 0xBB, 0xBF
static unsigned const char BOM[] = { 0xEF, 0xBB, 0xBF };
// The BOM sequence, if present, is always th e first three characters of the input.
const AString ref = a_line.substr(0, 3);
// If any of the first three chars do not match, return and do nothing.
for (size_t i = 0; i < 3; ++i)
{
if (static_cast<unsigned char>(ref[i]) != BOM[i])
{
return;
}
}
// First three characters match; erase them.
a_line.erase(0, 3);
}
bool cIniFile::KeyExists(AString a_keyname) const
{
return FindKey(a_keyname) != noID;
}
std::vector<std::pair<AString, AString>> cIniFile::GetValues(AString a_keyName)
{
std::vector<std::pair<AString, AString>> ret;
int keyID = FindKey(a_keyName);
if (keyID == noID)
{
return ret;
}
for (size_t valueID = 0; valueID < m_Keys[static_cast<size_t>(keyID)].m_Names.size(); ++valueID)
{
ret.emplace_back(m_Keys[static_cast<size_t>(keyID)].m_Names[valueID], m_Keys[static_cast<size_t>(keyID)].m_Values[valueID]);
}
return ret;
}
AStringVector ReadUpgradeIniPorts(
cSettingsRepositoryInterface & a_Settings,
const AString & a_KeyName,
const AString & a_PortsValueName,
const AString & a_OldIPv4ValueName,
const AString & a_OldIPv6ValueName,
const AString & a_DefaultValue
)
{
// Read the regular value, but don't use the default (in order to detect missing value for upgrade):
AStringVector Ports;
for (const auto & pair : a_Settings.GetValues(a_KeyName))
{
if (pair.first != a_PortsValueName)
{
continue;
}
AStringVector temp = StringSplitAndTrim(pair.second, ";,");
Ports.insert(Ports.end(), temp.begin(), temp.end());
}
if (Ports.empty())
{
// Historically there were two separate entries for IPv4 and IPv6, merge them and migrate:
AString Ports4 = a_Settings.GetValue(a_KeyName, a_OldIPv4ValueName, a_DefaultValue);
AString Ports6 = a_Settings.GetValue(a_KeyName, a_OldIPv6ValueName);
Ports = MergeStringVectors(StringSplitAndTrim(Ports4, ";,"), StringSplitAndTrim(Ports6, ";,"));
a_Settings.DeleteValue(a_KeyName, a_OldIPv4ValueName);
a_Settings.DeleteValue(a_KeyName, a_OldIPv6ValueName);
// If those weren't present or were empty, use the default:"
if (Ports.empty())
{
Ports = StringSplitAndTrim(a_DefaultValue, ";,");
}
a_Settings.SetValue(a_KeyName, a_PortsValueName, StringsConcat(Ports, ','));
}
return Ports;
}
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