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winix/winixd/core/misc.cpp

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/*
* This file is a part of Winix
* and is distributed under the 2-Clause BSD licence.
* Author: Tomasz Sowa <t.sowa@ttmath.org>
*/
/*
* Copyright (c) 2008-2021, Tomasz Sowa
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <grp.h>
#include <fstream>
#include <cstdlib>
#include "misc.h"
#include "templates/templates.h"
#include "convert/convert.h"
namespace Winix
{
namespace misc_private
{
// white_chars table should be sorted
// we do not treat a new line character (10) as a white character here
static const wchar_t white_chars[] = { 0x0009, 0x000B, 0x000C, 0x000D, 0x0020, 0x0085, 0x00A0,
0x1680, 0x180E, 0x2000, 0x2001, 0x2002, 0x2003, 0x2004,
0x2005, 0x2006, 0x2007, 0x2008, 0x2009, 0x200A, 0x2028,
0x2029, 0x202F, 0x205F, 0x3000 };
pt::WTextStream tmp_qencode;
}
/*
* IMPROVE ME
* we ca add our own functions with treat_new_line_as_white flag
* and with a pointer pointing after the number
*
* Toi(const wchar_t * str, const wchar_t ** str_after, bool treat_new_line_as_white);
* Toi(const wchar_t * str, bool treat_new_line_as_white);
* Toi(const std::wstring & str, bool treat_new_line_as_white);
*
*/
int Toi(const std::string & str, int base)
{
return Toi(str.c_str(), base);
}
int Toi(const std::wstring & str, int base)
{
return Toi(str.c_str(), base);
}
int Toi(const char * str, int base)
{
return static_cast<int>(strtol(str, 0, base));
}
int Toi(const wchar_t * str, int base)
{
return static_cast<int>(wcstol(str, 0, base));
}
long Tol(const std::string & str, int base)
{
return Tol(str.c_str(), base);
}
long Tol(const std::wstring & str, int base)
{
return Tol(str.c_str(), base);
}
long Tol(const char * str, int base)
{
return strtol(str, 0, base);
}
long Tol(const wchar_t * str, int base)
{
return wcstol(str, 0, base);
}
double Tod(const std::string & str)
{
return strtod(str.c_str(), 0);
}
double Tod(const std::wstring & str)
{
return wcstold(str.c_str(), 0);
}
double Tod(const char * str)
{
return strtod(str, 0);
}
double Tod(const wchar_t * str)
{
return wcstold(str, 0);
}
const wchar_t * Toa(unsigned int value, int base)
{
return Toa(static_cast<unsigned long>(value), base);
}
const wchar_t * Toa(unsigned long value, int base)
{
static wchar_t buffer[50];
size_t len = sizeof(buffer) / sizeof(wchar_t);
Toa(value, buffer, len, base);
return buffer;
}
const wchar_t * Toa(int value, int base)
{
return Toa(static_cast<long>(value), base);
}
const wchar_t * Toa(long value, int base)
{
static wchar_t buffer[50];
size_t len = sizeof(buffer) / sizeof(wchar_t);
Toa(value, buffer, len, base);
return buffer;
}
void Toa(int value, std::string & res, int base, bool clear)
{
static char buffer[50]; // !! IMPROVE ME this 'static' is not needed here?
size_t len = sizeof(buffer) / sizeof(char);
if( clear )
res.clear();
Toa(value, buffer, len, base);
res += buffer;
}
void Toa(long value, std::string & res, int base, bool clear)
{
static char buffer[50]; // !! IMPROVE ME the same as above
size_t len = sizeof(buffer) / sizeof(char);
if( clear )
res.clear();
Toa(value, buffer, len, base);
res += buffer;
}
void Toa(int value, std::wstring & res, int base, bool clear)
{
static wchar_t buffer[50]; // !!
size_t len = sizeof(buffer) / sizeof(wchar_t);
if( clear )
res.clear();
Toa(value, buffer, len, base);
res += buffer;
}
void Toa(long value, std::wstring & res, int base, bool clear)
{
static wchar_t buffer[50]; // !!
size_t len = sizeof(buffer) / sizeof(wchar_t);
if( clear )
res.clear();
Toa(value, buffer, len, base);
res += buffer;
}
void SetNonZeroDigitsAfterComma(char * str, size_t digits)
{
bool was_comma = false;
bool was_not_zero = false;
size_t zeroes = 0;
size_t not_zeroes = 0;
for(size_t i=0 ; str[i] != 0 ; ++i)
{
if( str[i] == '.' || str[i] == ',' )
{
was_comma = true;
}
else
if( was_comma )
{
if( str[i] == '0' && !was_not_zero )
{
zeroes += 1;
}
else
{
was_not_zero = true;
not_zeroes += 1;
if( not_zeroes >= digits )
{
str[i+1] = 0;
break;
}
}
}
}
}
bool CorrectUrlChar(wchar_t c)
{
return (c >= 'a' && c <='z') ||
(c >= 'A' && c <='Z') ||
(c >= '0' && c <='9') ||
c == '(' || c == ')' || c == '.' || c == ',' || c == '_' || c == '-';
}
// this function checks how many dots there are in the url
// if there are more than one (last) dot then the first dots will be changed into '_'
void CorrectUrlDots(std::wstring & url)
{
size_t i = url.size();
bool was_dot = false;
while( i-- > 0 )
{
if( url[i] == '.' )
{
if( was_dot )
// only one dot is allowed
url[i] = '_'; // !! do konfiga
was_dot = true;
}
}
}
// !! pomyslec o lepszej nazwie
void CorrectUrlChars(std::wstring & url)
{
std::wstring::iterator i;
for(i=url.begin(); i != url.end() ; ++i)
{
if( !CorrectUrlChar(*i) )
{
wchar_t c = TemplatesFunctions::locale.UrlSubst(*i);
if( CorrectUrlChar(c) )
*i = c;
else
*i = '_'; // !! dodac do konfiga
}
}
}
// !! pomyslec o lepszej nazwie
// przerzucic do funkcji - tam gdzie jest PrepareUrl()
// bo tutaj nie mamy wskaznika na config
void CorrectUrlOnlyAllowedChar(std::wstring & url)
{
CorrectUrlDots(url);
CorrectUrlChars(url);
pt::to_lower_emplace(url);
Trim(url, '_');
if( url.empty() || url == L"." )
{
// !! brakuje config->
//if( config->item_url_empty.empty() )
url = L"unnamed";
//else
//{
// url = config->item_url_empty;
// CorrectUrlDots(url);
// CorrectUrlChars(url);
// ToSmall(url);
// we don't trim here and the string will not be empty
//}
}
if( url[0] >= '0' && url[0] <= '9' )
// url must begin with a letter
url.insert(url.begin(), '_');
}
// DEPRECATED now pt::Date can print a month in Roman numerals
const wchar_t * DateToStr(int year, int month, int day)
{
static const wchar_t * month_letter[] = { L"I", L"II", L"III", L"IV", L"V", L"VI", L"VII", L"VIII", L"IX", L"X", L"XI", L"XII" };
static wchar_t buffer[100];
--month;
if( month < 0 )
month = 0;
if( month > 11 )
month = 11;
if( year == 0 )
swprintf(buffer, sizeof(buffer)/sizeof(wchar_t), L"%ls %02d", month_letter[month], day);
else
swprintf(buffer, sizeof(buffer)/sizeof(wchar_t), L"%02d %ls %02d", year, month_letter[month], day);
// warning: not thread safe (we do not use threads)
return buffer;
}
// DEPRECATED now pt::Date can print a month in Roman numerals
const wchar_t * DateToStr(int year, int month, int day, int hour, int min, int sec)
{
static const wchar_t * month_letter[] = { L"I", L"II", L"III", L"IV", L"V", L"VI", L"VII", L"VIII", L"IX", L"X", L"XI", L"XII" };
static wchar_t buffer[100];
--month;
if( month < 0 )
month = 0;
if( month > 11 )
month = 11;
if( year == 0 )
swprintf(buffer, sizeof(buffer)/sizeof(wchar_t), L"%ls %02d %02d:%02d:%02d", month_letter[month], day, hour, min, sec);
else
swprintf(buffer, sizeof(buffer)/sizeof(wchar_t), L"%02d %ls %02d %02d:%02d:%02d", year, month_letter[month], day, hour, min, sec);
// warning: not thread safe (we do not use threads)
return buffer;
}
const wchar_t * DateToStr(const pt::Date & d)
{
return DateToStr(d.year, d.month, d.day, d.hour, d.min, d.sec);
}
const wchar_t * DateToStr(time_t t)
{
pt::Date date = t;
return DateToStr(date);
}
const wchar_t * DateToStrWithoutHours(const pt::Date & d)
{
return DateToStr(d.year, d.month, d.day);
}
const wchar_t * DateToStrWithoutHours(time_t t)
{
pt::Date date = t;
return DateToStrWithoutHours(date);
}
// this format is used with cookies
const char * DateToStrCookie(int year, int month, int day, int hour, int min, int sec)
{
static const char * month_str[]={ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
static char buffer[100];
--month;
if( month < 0 )
month = 0;
if( month > 11 )
month = 11;
sprintf(buffer, "%02d-%s-%04d %02d:%02d:%02d", day, month_str[month], year, hour, min, sec);
return buffer;
}
const char * DateToStrCookie(const pt::Date & d)
{
return DateToStrCookie(d.year, d.month, d.day, d.hour, d.min, d.sec);
}
const char * DateToStrCookie(time_t t)
{
pt::Date date = t;
return DateToStrCookie(date);
}
const wchar_t * IpToStr(unsigned int ip_)
{
static wchar_t buffer[100];
union
{
unsigned int ip;
unsigned char c[4];
} ip;
ip.ip = ip_;
swprintf(buffer, sizeof(buffer)/sizeof(wchar_t), L"%u.%u.%u.%u", (int)ip.c[0], (int)ip.c[1], (int)ip.c[2], (int)ip.c[3]);
return buffer;
}
pt::WTextStream IPToStr(unsigned int ip)
{
pt::WTextStream buf;
for(int i=0 ; i<4 ; ++i, ip >>= 8)
{
buf << (ip & 0xff);
if( i<3 )
buf << '.';
}
return buf;
}
pt::WTextStream IPToStr(int ip)
{
return IPToStr(static_cast<unsigned int>(ip));
}
/*
by default we do not treat a new line character (10) as a white character
*/
bool IsWhite(wchar_t c, bool treat_new_line_as_white)
{
using misc_private::white_chars;
size_t len = sizeof(white_chars) / sizeof(wchar_t);
size_t o1 = 0;
size_t o2 = len - 1;
if( c == 10 )
return treat_new_line_as_white ? true : false;
if( c < white_chars[o1] || c > white_chars[o2] )
return false;
if( c == white_chars[o1] || c == white_chars[o2] )
return true;
while( o1 + 1 < o2 )
{
size_t o = (o2 - o1)/2 + o1;
if( c == white_chars[o] )
return true;
if( c > white_chars[o] )
o1 = o;
else
o2 = o;
}
return false;
}
/*
return true if the whole string has only white characters
an empty string is treated as white
*/
bool IsWhite(const wchar_t * str, bool treat_new_line_as_white)
{
for( ; *str != 0 ; ++str )
{
if( !IsWhite(*str, treat_new_line_as_white) )
return false;
}
return true;
}
/*
return true if the whole string has only white characters
*/
bool IsWhite(const std::wstring & str, bool treat_new_line_as_white)
{
return IsWhite(str.c_str(), treat_new_line_as_white);
}
void TrimWhite(std::wstring & s, bool trim_new_line_too)
{
size_t i;
if( s.empty() )
return;
// looking for white characters at the end
for(i=s.size()-1 ; i>0 && IsWhite(s[i], trim_new_line_too) ; --i);
if( i==0 && IsWhite(s[i], trim_new_line_too) )
{
// the whole string has white characters
s.clear();
return;
}
// deleting white characters at the end
if( i != s.size() - 1 )
s.erase(i+1, std::wstring::npos);
// looking for white characters at the beginning
for(i=0 ; i<s.size() && IsWhite(s[i], trim_new_line_too) ; ++i);
// deleting white characters at the beginning
if( i != 0 )
s.erase(0, i);
}
const wchar_t * SkipWhite(const wchar_t * s, bool treat_new_line_as_white)
{
while( IsWhite(*s, treat_new_line_as_white) )
++s;
return s;
}
void TrimFirst(std::wstring & s, wchar_t c)
{
size_t i;
if( s.empty() )
return;
// looking for the 'c' characters at the beginning
for(i=0 ; i<s.size() && s[i]==c ; ++i);
// deleting the 'c' characters at the beginning
if( i != 0 )
s.erase(0, i);
}
void TrimLast(std::wstring & s, wchar_t c)
{
size_t i;
if( s.empty() )
return;
// looking for the 'c' characters at the end
for(i=s.size()-1 ; i>0 && s[i]==c ; --i);
if( i==0 && s[i]==c )
{
// the whole string has the 'c' characters
s.clear();
return;
}
// deleting 'c' characters at the end
if( i != s.size() - 1 )
s.erase(i+1, std::wstring::npos);
}
void Trim(std::wstring & s, wchar_t c)
{
if( s.empty() )
return;
TrimLast(s, c);
TrimFirst(s, c);
}
bool IsLastSlash(const std::wstring & path)
{
if( path.empty() )
return false;
return path[path.size()-1] == '/';
}
bool IsInt(const wchar_t * str, bool treat_new_line_as_white, bool allow_negative_value)
{
size_t digit = 0;
str = SkipWhite(str, treat_new_line_as_white);
if( allow_negative_value && *str == '-' )
str += 1;
while( *str>='0' && *str<='9' )
{
digit += 1;
str += 1;
}
if( digit == 0 )
return false;
str = SkipWhite(str, treat_new_line_as_white);
if( *str != 0 )
return false;
return true;
}
bool IsInt(const wchar_t * str, bool treat_new_line_as_white)
{
return IsInt(str, treat_new_line_as_white, true);
}
bool IsInt(const std::wstring & str, bool treat_new_line_as_white)
{
return IsInt(str.c_str(), treat_new_line_as_white);
}
bool IsSize(const wchar_t * str, bool treat_new_line_as_white)
{
return IsInt(str, treat_new_line_as_white, false);
}
bool IsSize(const std::wstring & str, bool treat_new_line_as_white)
{
return IsSize(str.c_str(), treat_new_line_as_white);
}
bool IsFloat(const wchar_t * str, bool treat_new_line_as_white)
{
size_t digit = 0;
size_t comma = 0;
str = SkipWhite(str, treat_new_line_as_white);
if( *str == '-' )
str += 1;
while( (*str == ',' || *str == '.') || (*str>='0' && *str<='9') )
{
if( *str == ',' || *str == '.' )
comma += 1;
else
digit += 1;
str += 1;
}
if( comma > 1 || digit == 0 )
return false;
str = SkipWhite(str, treat_new_line_as_white);
if( *str != 0 )
return false;
return true;
}
bool IsFloat(const std::wstring & str, bool treat_new_line_as_white)
{
return IsFloat(str.c_str(), treat_new_line_as_white);
}
void Overwrite(std::string & str)
{
for(char & c : str)
c = 0;
}
void Overwrite(std::wstring & str)
{
for(wchar_t & c : str)
c = 0;
}
bool IsEmailCorrectChar(wchar_t c)
{
bool correct = false;
const wchar_t * allowed_chars = L"@.!#$%&'*+-/=?^_`{|}~";
if( (c >= 'A' && c<='Z') ||
(c >= 'a' && c<='z') ||
(c >= '0' && c<='9') )
{
correct = true;
}
else
{
for(size_t a=0 ; allowed_chars[a] != 0 ; ++a)
{
if( c == allowed_chars[a] )
{
correct = true;
break;
}
}
}
return correct;
}
bool ValidateEmail(const wchar_t * email)
{
int at = 0; // how many '@'
int dots_after_at = 0; // how many dots in the domain part
for(size_t i=0 ; email[i] != 0 ; ++i)
{
if( !IsEmailCorrectChar(email[i]) )
return false;
if( email[i] == '@' )
++at;
if( email[i] == '.' && at > 0 )
++dots_after_at;
}
if( at != 1 || dots_after_at == 0 )
return false;
return true;
}
bool ValidateEmail(const std::wstring & email)
{
return ValidateEmail(email.c_str());
}
bool IsFile(const wchar_t * file)
{
struct stat sb;
char file_name[WINIX_OS_PATH_SIZE];
if( !wide_to_utf8(file, file_name, WINIX_OS_PATH_SIZE) )
return false;
return (stat(file_name, &sb) == 0);
}
bool IsFile(const std::wstring & file)
{
return IsFile(file.c_str());
}
/*
* group can be -1 (it is not used then)
*/
bool CreateDir(const wchar_t * dir, int priv, int group)
{
char dir_name[WINIX_OS_PATH_SIZE];
if( !IsFile(dir) )
{
if( !wide_to_utf8(dir, dir_name, WINIX_OS_PATH_SIZE) )
return false;
if( mkdir(dir_name, 0777) < 0 )
{
//log << log1 << "Can't create a directory on fs: " << dir << logend;
return false;
}
return SetPriv(dir, priv, group);
}
return true;
}
bool CreateDir(const std::wstring & dir, int priv, int group)
{
return CreateDir(dir.c_str(), priv, group);
}
// creating directories (can be more than one)
// 'dirs' can begin with a slash (will be skipped)
bool CreateDirs(const wchar_t * base_dir, const wchar_t * dirs, int priv, int group, bool skip_last)
{
static std::wstring temp; // !! IMPROVE ME change to char[WINIX_OS_PATH_SIZE] or just remove 'static'
const wchar_t * p = dirs;
temp = base_dir; // we start creating from 'base_dir'
if( temp.empty() )
return false;
if( temp[temp.size()-1] != '/' )
temp += '/';
while( true )
{
// skipping slashes
for( ; *p=='/' ; ++p );
if( *p == 0 )
break;
// taking the name
for( ; *p!=0 && *p!='/' ; ++p )
temp += *p;
if( !skip_last || *p!=0 )
if( !CreateDir(temp.c_str(), priv, group) )
return false;
temp += '/';
}
return true;
}
bool CreateDirs(const std::wstring & base_dir, const std::wstring & dirs, int priv, int group, bool skip_last)
{
return CreateDirs(base_dir.c_str(), dirs.c_str(), priv, group, skip_last);
}
int GetGroupId(const wchar_t * name)
{
struct group gr;
struct group * result;
char group_name[WINIX_OS_USERNAME_SIZE];
char buffer[512];
if( !wide_to_utf8(name, group_name, WINIX_OS_USERNAME_SIZE) )
return -1;
if( getgrnam_r(group_name, &gr, buffer, sizeof(buffer)/sizeof(char), &result) != 0 )
{
//log << log1 << "Misc: I cannot get the group_id for group name: " << name << logend;
return -1;
}
/*
* there is no such a group in /etc/group
*/
if( result == 0 )
{
//log << log1 << "Misc: There is no a group with name: " << name << logend;
return -1;
}
return gr.gr_gid;
}
int GetGroupId(const std::wstring & name)
{
return GetGroupId(name.c_str());
}
/*
* setting priveleges and a group id on a file or on a directory
* group can be -1 (it is not used then)
*/
bool SetPriv(const wchar_t * name, int priv, int group)
{
char file_name[WINIX_OS_PATH_SIZE];
if( !wide_to_utf8(name, file_name, WINIX_OS_PATH_SIZE) )
return false;
if( chmod(file_name, priv) < 0 )
{
//log << log1 << "Misc: Can't set proper fs privileges on: " << name << logend;
return false;
}
if( group != -1 )
{
if( chown(file_name, geteuid(), group) < 0 )
{
//log << log1 << "Can't set proper fs group on: " << name
// << ", group id was: " << group << logend;
return false;
}
}
return true;
}
bool SetPriv(const std::wstring & name, int priv, int group)
{
return SetPriv(name.c_str(), priv, group);
}
bool CopyFile(FILE * in, FILE * out)
{
char buf[1024];
size_t buflen = sizeof(buf)/sizeof(char);
size_t len;
do
{
len = fread(buf, 1, buflen, in);
if( len > 0 )
fwrite(buf, 1, len, out);
if( ferror(in) || ferror(out) )
return false;
}
while( !feof(in) );
return true;
}
bool CopyFile(const wchar_t * src, const wchar_t * dst)
{
char src_name[WINIX_OS_PATH_SIZE];
char dst_name[WINIX_OS_PATH_SIZE];
FILE * in, * out;
if( !wide_to_utf8(src, src_name, WINIX_OS_PATH_SIZE) )
return false;
if( !wide_to_utf8(dst, dst_name, WINIX_OS_PATH_SIZE) )
return false;
in = fopen(src_name, "rb");
if( !in )
return false;
out = fopen(dst_name, "wb");
if( !out )
{
fclose(in);
return false;
}
bool res = CopyFile(in, out);
fclose(in);
fclose(out);
if( res && ferror(out) )
res = false;
if( !res )
remove(dst_name);
return res;
}
bool CopyFile(const std::wstring & src, const std::wstring & dst)
{
return CopyFile(src.c_str(), dst.c_str());
}
bool RemoveFile(const wchar_t * file)
{
char file_name[WINIX_OS_PATH_SIZE];
if( !wide_to_utf8(file, file_name, WINIX_OS_PATH_SIZE) )
return false;
return unlink(file_name) == 0;
}
bool RemoveFile(const std::wstring & file)
{
return RemoveFile(file.c_str());
}
bool RenameFile(const wchar_t * from, const wchar_t * to)
{
char from_name[WINIX_OS_PATH_SIZE];
char to_name[WINIX_OS_PATH_SIZE];
if( !wide_to_utf8(from, from_name, WINIX_OS_PATH_SIZE) )
return false;
if( !wide_to_utf8(to, to_name, WINIX_OS_PATH_SIZE) )
return false;
return rename(from_name, to_name) == 0;
}
bool RenameFile(const std::wstring & from, const std::wstring & to)
{
return RenameFile(from.c_str(), to.c_str());
}
bool GetUTF8File(const wchar_t * file_path, std::wstring & content, bool clear_content)
{
char file[WINIX_OS_PATH_SIZE];
std::ifstream get_file_content;
if( clear_content )
content.clear();
if( !wide_to_utf8(file_path, file, WINIX_OS_PATH_SIZE) )
return false;
get_file_content.open(file, std::ios_base::in | std::ios_base::binary);
if( !get_file_content )
return false;
/*
* we don't report any errors when converting from UTF8 to wide characters here
*/
pt::utf8_to_wide(get_file_content, content);
get_file_content.close();
return true;
}
bool GetUTF8File(const std::wstring & file_path, std::wstring & content, bool clear_content)
{
return GetUTF8File(file_path.c_str(), content, clear_content);
}
bool GetBinaryFile(const wchar_t * file_path, BinaryPage & content, bool clear_content)
{
char file[WINIX_OS_PATH_SIZE];
char buffer[4096];
size_t buffer_len = sizeof(buffer) / sizeof(char);
std::ifstream get_file_content;
if( clear_content )
content.clear();
if( !wide_to_utf8(file_path, file, WINIX_OS_PATH_SIZE) )
return false;
get_file_content.open(file, std::ios_base::in | std::ios_base::binary);
if( !get_file_content )
return false;
do
{
get_file_content.read(buffer, buffer_len);
content.write(buffer, get_file_content.gcount());
}
while( !get_file_content.eof() && get_file_content.good() );
get_file_content.close();
return true;
}
bool GetBinaryFile(const std::wstring & file_path, BinaryPage & content, bool clear_content)
{
return GetBinaryFile(file_path.c_str(), content, clear_content);
}
// if there is no an extension it returns a pointer to the last '\0' character
const wchar_t * GetFileExt(const wchar_t * name)
{
const wchar_t * dot_ptr = nullptr;
for( ; *name != 0 ; ++name)
{
if( *name == '.' )
{
dot_ptr = name;
}
}
return dot_ptr ? dot_ptr + 1 : name;
}
void PrepareNewFileName(const wchar_t * src, const wchar_t * postfix, std::wstring & res, bool clear_res)
{
bool has_ext = false;
const wchar_t * ext = GetFileExt(src);
if( clear_res )
res.clear();
size_t len = ext - src;
if( len > 0 )
{
if( *(ext-1) == '.' )
{
len -= 1;
has_ext = true;
}
}
res.append(src, len);
res.append(postfix);
if( has_ext )
res.append(1, '.');
res.append(ext);
}
void PrepareNewFileName(const std::wstring & src, const std::wstring & postfix, std::wstring & res, bool clear_res)
{
return PrepareNewFileName(src.c_str(), postfix.c_str(), res, clear_res);
}
int SelectFileType(const wchar_t * file_name)
{
const wchar_t * ext = GetFileExt(file_name);
// as an image we're using only those types which can be rendered
// by a web browser
if( pt::is_equal_nc(ext, L"jpg") ||
pt::is_equal_nc(ext, L"jpeg") ||
pt::is_equal_nc(ext, L"jpe") ||
pt::is_equal_nc(ext, L"pic") ||
pt::is_equal_nc(ext, L"tga") ||
pt::is_equal_nc(ext, L"gif") ||
pt::is_equal_nc(ext, L"bmp") ||
pt::is_equal_nc(ext, L"png") )
return WINIX_ITEM_FILETYPE_IMAGE;
if( pt::is_equal_nc(ext, L"pdf") ||
pt::is_equal_nc(ext, L"doc") ||
pt::is_equal_nc(ext, L"xls") ||
pt::is_equal_nc(ext, L"txt") ||
pt::is_equal_nc(ext, L"ods") ||
pt::is_equal_nc(ext, L"odt") )
return WINIX_ITEM_FILETYPE_DOCUMENT;
if( pt::is_equal_nc(ext, L"avi") ||
pt::is_equal_nc(ext, L"mp4") ||
pt::is_equal_nc(ext, L"flv") ||
pt::is_equal_nc(ext, L"mpg") ||
pt::is_equal_nc(ext, L"mpeg") ||
pt::is_equal_nc(ext, L"mkv") ||
pt::is_equal_nc(ext, L"wmv") )
return WINIX_ITEM_FILETYPE_VIDEO;
return WINIX_ITEM_FILETYPE_UNKNOWN;
}
int SelectFileType(const std::wstring & file_name)
{
return SelectFileType(file_name.c_str());
}
void UrlEncode(const char * in, std::string & out, bool clear_out)
{
if( clear_out )
out.clear();
pt::TextStream stream;
for(size_t i=0 ; in[i] != 0 ; ++i)
{
UrlEncode(in[i], stream, true);
for(size_t s=0 ; s < stream.size() ; ++s)
out += stream[s];
}
}
void UrlEncode(const std::string & in, std::string & out, bool clear_out)
{
UrlEncode(in.c_str(), out, clear_out);
}
//void UrlEncode(const wchar_t * in, std::string & out, bool clear_out)
//{
// if( clear_out )
// out.clear();
//
// pt::TextStream stream;
//
// for(size_t i=0 ; in[i] != 0 ; ++i)
// {
// UrlEncode(in[i], stream, true);
//
// for(size_t s=0 ; s < stream.size() ++i)
// out += stream[s];
// }
//}
//void UrlEncode(const std::wstring & in, std::string & out, bool clear_out)
//{
// UrlEncode(in.c_str(), out, clear_out);
//}
void UrlEncode(const wchar_t * in, std::wstring & out, bool clear_out)
{
if( clear_out )
out.clear();
pt::WTextStream stream;
for(size_t i=0 ; in[i] != 0 ; ++i)
{
UrlEncode(in[i], stream, true);
for(size_t s=0 ; s < stream.size() ; ++s)
out += stream[s];
}
}
void UrlEncode(const std::wstring & in, std::wstring & out, bool clear_out)
{
UrlEncode(in.c_str(), out, clear_out);
}
void UrlEncode(const pt::TextStream & in, pt::TextStream & out, bool clear_out)
{
if( clear_out )
out.clear();
for(size_t i=0 ; i < in.size() ; ++i)
UrlEncode(in.get_char(i), out, false);
}
void UrlEncode(const pt::WTextStream & in, pt::WTextStream & out, bool clear_out)
{
if( clear_out )
out.clear();
for(size_t i=0 ; i < in.size() ; ++i)
UrlEncode(in.get_wchar(i), out, false);
}
bool UrlDecodeFromHex(int c, int & out)
{
if( c>='0' && c<='9' )
{
out = c - '0';
return true;
}
else
if( c>='a' && c<='f' )
{
out = c - 'a' + 10;
return true;
}
else
if( c>='A' && c<='F' )
{
out = c - 'A' + 10;
return true;
}
out = 0;
return false;
}
bool UrlDecode(const char * url, std::wstring & out, bool clear_out)
{
char url_utf8[WINIX_URL_MAX_SIZE];
size_t index = 0;
int c1, c2;
if( clear_out )
out.clear();
while( *url && index < WINIX_URL_MAX_SIZE-1 )
{
if( *url == '%' && *(url+1) && *(url+2) &&
UrlDecodeFromHex(*(url+1), c1) && UrlDecodeFromHex(*(url+2), c2) )
{
url_utf8[index++] = (c1 << 4) + c2;
url += 3;
}
else
{
url_utf8[index++] = *url;
url += 1;
}
}
url_utf8[index] = 0;
return pt::utf8_to_wide(url_utf8, out, false);
}
bool UrlDecode(const std::string & url, std::wstring & out, bool clear_out)
{
return UrlDecode(url.c_str(), out, clear_out);
}
void QEncode(const std::wstring & in, std::string & out, bool clear)
{
using namespace misc_private;
tmp_qencode.clear();
QEncode(in, tmp_qencode);
tmp_qencode.to_str(out, clear);
tmp_qencode.clear();
}
/*
deleting all post temporary files
*/
void RemovePostFileTmp(PostFileTab & post_file_tab)
{
PostFileTab::iterator i = post_file_tab.begin();
for( ; i != post_file_tab.end() ; ++i )
{
const std::wstring & tmp_filename = i->second.tmp_filename;
if( !tmp_filename.empty() && RemoveFile(tmp_filename) )
{
//log << log3 << "Deleted tmp file: " << tmp_filename << logend;
}
}
}
void JSONescapeStream(const pt::WTextStream & in, pt::WTextStream & out)
{
pt::WTextStream::const_iterator i = in.begin();
for( ; i != in.end() ; ++i)
{
JSONescape(*i, out);
}
}
void JSONescapeStream(const std::wstring & in, pt::WTextStream & out)
{
std::wstring::const_iterator i = in.begin();
for( ; i != in.end() ; ++i)
{
JSONescape(*i, out);
}
}
bool wide_to_utf8(const wchar_t * wide_string, char * utf8, size_t utf8_size)
{
bool res = pt::wide_to_utf8(wide_string, utf8, utf8_size);
if( !res )
{
/*
* either the 'utf8' buffer is too small or there was an error when converting
*/
//log << log1 << "Misc: I cannot convert from a wide string to an UTF-8 string, original string was: "
// << wide_string << logend;
}
return res;
}
bool wide_to_utf8(const std::wstring & wide_string, char * utf8, size_t utf8_size)
{
return wide_to_utf8(wide_string.c_str(), utf8, utf8_size);
}
void calculate_timespec_diff(timespec & start, timespec & stop, timespec & result)
{
/*
* copied from macro timespecsub(tsp, usp, vsp) which is defined in sys/time.h
*/
result.tv_sec = stop.tv_sec - start.tv_sec;
result.tv_nsec = stop.tv_nsec - start.tv_nsec;
if( result.tv_nsec < 0 )
{
result.tv_sec--;
result.tv_nsec += 1000000000L;
}
}
double timespec_to_double(timespec & val)
{
double val_double = val.tv_sec + val.tv_nsec / 1000000000.0;
return val_double;
}
void timespec_to_stream(timespec & val, pt::Stream & stream)
{
char buf[50];
double val_double = timespec_to_double(val);
sprintf(buf, "%f", val_double);
SetNonZeroDigitsAfterComma(buf, 2);
stream << buf;
}
void timespec_to_stream_with_unit(timespec & val, pt::Stream & stream)
{
char buf[50];
bool is_ms = false;
double val_double = timespec_to_double(val);
if( val_double < 0.1 )
{
is_ms = true;
val_double = val_double * 1000;
}
sprintf(buf, "%f", val_double);
SetNonZeroDigitsAfterComma(buf, 2);
stream << buf;
if( is_ms )
{
stream << "ms";
}
else
{
stream << "s";
}
}
void slice_by(const std::wstring & str, wchar_t c, std::vector<std::wstring> & out)
{
std::wstring tmp;
for(size_t i = 0 ; i < str.size() ; ++i)
{
if( str[i] == c )
{
if( !tmp.empty() )
{
out.push_back(tmp);
tmp.clear();
}
}
else
{
tmp += str[i];
}
}
if( !tmp.empty() )
{
out.push_back(tmp);
}
}
} // namespace Winix