rtphone/src/engine/helper/HL_String.cpp

497 lines
13 KiB
C++

/* Copyright(C) 2007-2017 VoIPobjects (voipobjects.com)
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "HL_String.h"
#include <sstream>
#include <iomanip>
#include <memory.h>
#include <algorithm>
#ifdef TARGET_WIN
# include <WinSock2.h>
# include <Windows.h>
# include <cctype>
#endif
std::string StringHelper::extractFilename(const std::string& path)
{
if (path.empty())
return std::string();
// Look for separator from end of string
std::string::size_type p_s = path.find_last_of('/'), p_bs = path.find_last_of('\\');
if (p_s == std::string::npos && p_bs == std::string::npos)
return path;
if (p_s != std::string::npos)
return path.substr(p_s + 1);
else
return path.substr(p_bs + 1);
}
std::string StringHelper::appendPath(const std::string& s1, const std::string& s2)
{
std::string result = s1;
if (!endsWith(result, "/") && !endsWith(result, "\\"))
{
#if defined(TARGET_WIN)
result += "\\";
#else
result += "/";
#endif
}
return result + s2;
}
std::string StringHelper::makeUtf8(const std::tstring &arg)
{
#if defined(TARGET_WIN)
size_t required = WideCharToMultiByte(CP_UTF8, 0, arg.c_str(), -1, NULL, 0, NULL, NULL);
char *result = (char*)_alloca(required + 1);
WideCharToMultiByte(CP_UTF8, 0, arg.c_str(), -1, result, required+1, NULL, NULL);
return result;
#else
return arg;
#endif
}
std::string StringHelper::toUtf8(const std::tstring &arg)
{
return makeUtf8(arg);
}
std::tstring StringHelper::makeTstring(const std::string& arg)
{
#if defined(TARGET_WIN)
size_t count = MultiByteToWideChar(CP_UTF8, 0, arg.c_str(), -1, NULL, 0);
wchar_t* result = (wchar_t*)_alloca(count * 2);
MultiByteToWideChar(CP_UTF8, 0, arg.c_str(), -1, result, count);
return result;
#else
return arg;
#endif
}
int StringHelper::toInt(const char *s, int defaultValue, bool* isOk)
{
int result;
if (sscanf(s, "%d", &result) != 1)
{
if (isOk)
*isOk = false;
result = defaultValue;
}
else
if (isOk)
*isOk = true;
return result;
}
uint64_t StringHelper::toUint64(const char* s, uint64_t def, bool *isOk)
{
uint64_t result = def;
#if defined(TARGET_WIN)
if (sscanf(s, "%I64d", &result) != 1)
#else
if (sscanf(s, "%llu", &result) != 1)
#endif
{
if (isOk)
*isOk = false;
result = def;
}
else
if (isOk)
*isOk = true;
return result;
}
std::string StringHelper::toHex(unsigned int value)
{
char buffer[32];
sprintf(buffer, "%x", value);
return buffer;
}
std::string StringHelper::toHex(const void *ptr)
{
std::ostringstream oss;
oss << std::fixed << std::setw(8) << std::setfill('0') << std::hex << ptr;
return oss.str();
}
//must be lowercase for MD5
static const char hexmap[] = "0123456789abcdef";
std::string StringHelper::toHex(const uint8_t* input, size_t inputLength)
{
std::string result; result.resize(inputLength * 2);
const char* p = (const char*)input;
char* r = &result[0];
for (size_t i=0; i < inputLength; ++i)
{
unsigned char temp = *p++;
int hi = (temp & 0xf0)>>4;
int low = (temp & 0xf);
*r++ = hexmap[hi];
*r++ = hexmap[low];
}
*r = 0;
return result;
}
std::string StringHelper::prefixLines(const std::string &source, const std::string &prefix)
{
// Read source line by line
std::istringstream iss(source);
std::ostringstream oss;
std::string line;
while (std::getline(iss,line))
{
oss << prefix << line << std::endl;
}
return oss.str();
}
std::string StringHelper::doubleToString(double value, int precision)
{
std::stringstream ss;
ss << std::fixed << std::setprecision(precision) << value;
return ss.str();
}
const char* StringHelper::findSubstring(const char* buffer, const char* substring, size_t bufferLength)
{
#if defined(TARGET_WIN)
return (const char*)strstr(buffer, substring);
#else
return (const char*)memmem(buffer, bufferLength, substring, strlen(substring));
#endif
}
void StringHelper::split(const std::string& src, std::vector<std::string>& dst, const std::string& delims)
{
dst.clear();
std::string::size_type p = 0;
while (p < src.size())
{
std::string::size_type f = src.find_first_of(delims, p);
if (f == std::string::npos)
{
std::string t = src.substr(p);
if (!t.empty())
dst.push_back(t);
p = src.size();
}
else
{
std::string t = src.substr(p, f-p);
if (!t.empty())
dst.push_back(t);
p = f + 1;
}
}
}
std::vector<std::string> StringHelper::split(const std::string& src, const std::string& delims)
{
std::vector<std::string> r;
split(src, r, delims);
return r;
}
std::pair<std::string, int> StringHelper::parseHost(const std::string& host, int defaultPort)
{
std::pair<std::string, int> result;
std::size_t p = host.find(':');
if (p != std::string::npos)
{
result.first = host.substr(0, p);
result.second = StringHelper::toInt(host.c_str() + p + 1, defaultPort);
}
else
{
result.first = host;
result.second = defaultPort;
}
return result;
}
std::pair<std::string, std::string> StringHelper::parseAssignment(const std::string& s, bool trimQuotes)
{
std::pair<std::string, std::string> result;
std::string::size_type p = s.find('=');
if (p != std::string::npos)
{
result.first = StringHelper::trim(s.substr(0, p));
result.second = StringHelper::trim(s.substr(p+1));
if (trimQuotes && result.second.size() >= 2)
{
if ((result.second[0] == '"' && result.second[result.second.size()-1] == '"') ||
(result.second[0] == '\'' && result.second[result.second.size()-1] == '\''))
result.second = result.second.substr(1, result.second.size() - 2);
}
}
else
result.first = StringHelper::trim(s);
return result;
}
std::string StringHelper::intToString(int value)
{
char buffer[32];
sprintf(buffer, "%d", value);
return buffer;
}
float StringHelper::toFloat(const std::string &s, float v, bool* isOk)
{
float result = 0.0;
int code = sscanf(s.c_str(), "%f", &result);
if (code == 1)
{
if (isOk)
*isOk = true;
}
else
{
result = v;
if (isOk)
*isOk = false;
}
return result;
}
std::string StringHelper::trim(const std::string &s)
{
auto wsfront = std::find_if_not(s.begin(), s.end(), [](int c) { return std::isspace(c) || c == '\r' || c == '\n'; });
auto wsback = std::find_if_not(s.rbegin(), s.rend(), [](int c) { return std::isspace(c) || c == '\r' || c == '\n'; }).base();
return (wsback <= wsfront ? std::string() : std::string(wsfront,wsback));
}
std::string StringHelper::timeToString(time_t t)
{
char buffer[128] = "";
struct tm lt;
#if defined(TARGET_LINUX) || defined(TARGET_OSX) || defined(TARGET_ANDROID)
if (localtime_r(&t, &lt) == nullptr)
return std::string();
#else
lt = *localtime(&t);
#endif
strftime(buffer, sizeof(buffer)-1, "%Y-%m-%d %H:%M:%S", &lt);
return buffer;
}
std::string StringHelper::millisecondsToString(uint64_t t)
{
return timeToString(t/1000);
}
int StringHelper::fromHex2Int(const std::string &s)
{
int result = 0;
sscanf(s.c_str(), "%x", &result);
return result;
}
static int hex2code(char s)
{
if (s >= '0' && s <= '9')
return s - '0';
if (s >= 'a' && s <= 'f')
return s - 'a' + 10;
if (s >= 'A' && s <= 'F')
return s - 'A' + 10;
return 0;
}
static int hex2code(const char* s)
{
return (hex2code(s[0]) << 4) + hex2code(s[1]);
}
std::string StringHelper::fromHex2String(const std::string& s)
{
std::string result; result.resize(s.size() / 2);
const char* t = s.c_str();
for (size_t i = 0; i < result.size(); i++)
result[i] = hex2code(t[i*2]);
return result;
}
std::string StringHelper::replace(const std::string& s, char f, char r)
{
std::string result(s);
for (std::string::size_type i = 0; i < result.size(); i++)
if (result[i] == 'f')
result[i] = r;
return result;
}
std::string StringHelper::replace(const std::string& s, const std::string& tmpl, const std::string& n)
{
std::string result(s);
std::string::size_type p = 0;
while ( (p = result.find(tmpl, p)) != std::string::npos)
{
result.replace(p, tmpl.size(), n);
p += n.size();
}
return result;
}
std::string StringHelper::decodeUri(const std::string& s)
{
std::string ret;
ret.reserve(s.size());
char ch;
int i, ii;
for (i=0; i<(int)s.length(); i++)
{
if (s[i] == 37)
{
sscanf(s.substr(i+1,2).c_str(), "%x", &ii);
ch = static_cast<char>(ii);
ret += ch;
i += 2;
}
else
ret += s[i];
}
return ret;
}
bool StringHelper::startsWith(const std::string& s, const std::string& prefix)
{
std::string::size_type p = s.find(prefix);
return p == 0;
}
bool StringHelper::endsWith(const std::string& s, const std::string& suffix)
{
std::string::size_type p = s.rfind(suffix);
return (p == s.size() - suffix.size());
}
int StringHelper::stringToDuration(const std::string& s)
{
if (endsWith(s, "ms"))
return std::stoi(s.substr(0, s.size()-2));
if (endsWith(s, "s"))
return std::stoi(s.substr(0, s.size()-1)) * 1000;
if (endsWith(s, "m"))
return std::stoi(s.substr(0, s.size()-1)) * 60000;
if (endsWith(s, "h"))
return std::stoi(s.substr(0, s.size()-1)) * 3600 * 1000;
else
return std::stoi(s) * 1000;
}
#define XML_HEADER "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>"
// --------------------- XcapHelper -----------------
std::string XcapHelper::buildBuddyList(std::string listName, std::vector<std::string> buddies)
{
std::ostringstream result;
result << XML_HEADER <<
"<resource-lists xmlns=\"urn:ietf:params:xml:ns:resource-lists\">" <<
"<list name=\"" << listName.c_str() << "\">";
// to test CT only!
//result << "<entry uri=\"" << "sip:dbogovych1@10.11.1.25" << "\"/>";
//result << "<entry uri=\"" << "sip:dbogovych2@10.11.1.25" << "\"/>";
for (unsigned i = 0; i<buddies.size(); i++)
{
result << "<entry uri=\"" << normalizeSipUri(buddies[i]).c_str() << "\"/>";
}
result << "</list></resource-lists>";
return result.str();
}
std::string XcapHelper::buildRules(std::vector<std::string> buddies)
{
std::ostringstream result;
result << XML_HEADER <<
"<ruleset xmlns=\"urn:ietf:params:xml:ns:common-policy\">" <<
"<rule id=\"presence_allow\">" <<
"<conditions>";
for (unsigned i = 0; i<buddies.size(); i++)
{
result << "<identity><one id=\"" <<
normalizeSipUri(buddies[i]).c_str() << "\"/></identity>";
}
result << "</conditions>" <<
"<actions>" <<
"<sub-handling xmlns=\"urn:ietf:params:xml:ns:pres-rules\">" <<
"allow" <<
"</sub-handling>" <<
"</actions>" <<
"<transformations>" <<
"<provide-devices xmlns=\"urn:ietf:params:xml:ns:pres-rules\">" <<
"<all-devices/>" <<
"</provide-devices>" <<
"<provide-persons xmlns=\"urn:ietf:params:xml:ns:pres-rules\">" <<
"<all-persons/>" <<
"</provide-persons>" <<
"<provide-services xmlns=\"urn:ietf:params:xml:ns:pres-rules\">" <<
"<all-services/>" <<
"</provide-services>" <<
"</transformations>" <<
"</rule>" <<
"</ruleset>";
return result.str();
}
std::string XcapHelper::buildServices(std::string serviceUri, std::string listRef)
{
std::ostringstream result;
result << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl <<
"<rls-services xmlns=\"urn:ietf:params:xml:ns:rls-services\"" << std::endl <<
"xmlns:rl=\"urn:ietf:params:xml:ns:resource-lists\"" << std::endl <<
"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">" << std::endl <<
"<service uri=\"" << normalizeSipUri(serviceUri).c_str() << "\">" << std::endl <<
"<resource-list>" << listRef.c_str() << "</resource-list>" << std::endl <<
"<packages>" << std::endl <<
"<package>presence</package>" << std::endl <<
"</packages>" << std::endl <<
"</service>" << std::endl <<
"</rls-services>";
return result.str();
}
std::string XcapHelper::normalizeSipUri(std::string uri)
{
if (uri.length())
{
if (uri[0] == '<')
uri.erase(0,1);
if (uri.length())
{
if (uri[uri.length()-1] == '>')
uri.erase(uri.length()-1, 1);
}
}
return uri;
}