bool util::string_contains(const std::experimental::string_view &str, const char c)
{
assert(!str.empty());
assert(c);
return str.find(c) != std::experimental::string_view::npos;
}
void client::raw_cmd(const std::experimental::string_view &content)
{
if (content.empty())
throw std::invalid_argument("content is empty.");
con_.write(content.data());
}
bool Tial::Utility::Logger::toBeLoggedRuntime(Level level, const std::experimental::string_view &module) {
auto moduleLevel = levels.find(module.to_string());
if(moduleLevel == levels.end()) {
auto sep = module.rfind("::");
if(sep == module.npos)
return level >= globalLevel;
return toBeLoggedRuntime(level, module.substr(0, sep));
}
return level >= moduleLevel->second;
}
/*
* Validates an ipv4ipv6 address and return the result.
* Thanks, beej!
*/
bool util::valid_ipv46_addr(const std::experimental::string_view &addr)
{
assert(!addr.empty());
/* Unused, but required by inet_pton(). */
unsigned char buf[sizeof(struct in6_addr)];
if (ip_version(addr) == ipv4)
return inet_pton(AF_INET, addr.data(), buf);
else
return inet_pton(AF_INET6, addr.data(), buf);
}
int main () {
test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( "ABCDE");
test ( "a" );
test ( "" );
test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( L"ABCDE" );
test ( L"a" );
test ( L"" );
#if __cplusplus >= 201103L
test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( u"ABCDE" );
test ( u"a" );
test ( u"" );
test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( U"ABCDE" );
test ( U"a" );
test ( U"" );
#endif
#if _LIBCPP_STD_VER > 11
{
constexpr std::experimental::string_view sv1 { "ABCDE", 5 };
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 0, 3 );
static_assert ( sv2.size() == 3, "" );
static_assert ( sv2[0] == 'A', "" );
static_assert ( sv2[1] == 'B', "" );
static_assert ( sv2[2] == 'C', "" );
}
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 0 );
static_assert ( sv2.size() == 0, "" );
}
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 3 );
static_assert ( sv2.size() == 2, "" );
static_assert ( sv2[0] == 'D', "" );
static_assert ( sv2[1] == 'E', "" );
}
}
#endif
}
static OutputContainer splitted(const std::experimental::string_view &collection, const Element &element) {
OutputContainer output;
if(!collection.empty()) {
unsigned int start = 0, i = 0;
for(; i != collection.size();) {
if(collection[i] == element) {
output.push_back(collection.substr(start, i-start));
++i;
start = i;
} else
++i;
}
output.push_back(collection.substr(start, i));
}
return output;
}
int main () {
test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( "ABCDE");
test ( "a" );
test ( "" );
test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( L"ABCDE" );
test ( L"a" );
test ( L"" );
test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( u"ABCDE" );
test ( u"a" );
test ( u"" );
test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( U"ABCDE" );
test ( U"a" );
test ( U"" );
{
constexpr std::experimental::string_view sv1 { "ABCDE", 5 };
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 0, 3 );
static_assert ( sv2.size() == 3, "" );
static_assert ( sv2[0] == 'A', "" );
static_assert ( sv2[1] == 'B', "" );
static_assert ( sv2[2] == 'C', "" );
}
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 0 );
static_assert ( sv2.size() == 0, "" );
}
{
constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 3 );
static_assert ( sv2.size() == 2, "" );
static_assert ( sv2[0] == 'D', "" );
static_assert ( sv2[1] == 'E', "" );
}
}
}
/*
* Validates the syntax of hostnames, ipv4-, and ipv6-addresses.
* Returns an empty string on success, non-empty on failure.
*
* TODO: Implement support for internationalized domain names.
*/
const std::string util::valid_addr(const std::experimental::string_view &addr)
{
if (!valid_ipv46_addr(addr)) {
if (string_contains(addr, ipv6_sep))
return "invalid ipv6 address.";
if (addr.length() > addr_max_length)
return "the address is too long; it's illegal to exceed 255 characters.";
/*
* Split the hostname into its multiple sub-domains
* (seperated by periods) and check them.
*/
std::vector<std::string> tokens = split_string(addr, period);
for (const std::experimental::string_view &s: tokens) {
/*
* In case of "irc..hostname.tld", where the token between '..',
* would be empty.
*/
if (s.empty())
return "a token is empty; does the address contain \"..\" somewhere?";
/* Also as per RFC 1035. */
if (s.front() == hyphen || s.back() == hyphen) {
std::string element = s.data();
return "first or last character in the element \"" +
element + "\" is a hyphen; that's not allowed.";
}
/*
* O̶n̶l̶y̶ ̶[̶A̶-̶Z̶a̶-̶z̶0̶-̶9̶]̶ ̶a̶r̶e̶ ̶a̶l̶l̶o̶w̶e̶d̶.̶
* Okey, no. International domain names is a thing:
* <https://en.wikipedia.org/wiki/Domain_name>
*
* s[first] and s[last] are checked again, but they
* must be checked for non-[A-Za-z0-9], anyway. A check for
* periods could be implemented here, but then we'd lose a specified
* error message and we'd need more checks than what we remove.
*/
if (std::find_if(s.begin(), s.end(),
[](char c) {
return !std::isdigit(c) &&
!std::isalpha(c) &&
c != hyphen; }) != s.end()) {
std::string element = s.data();
return "the element \"" + element +
"\" contains an illegal character (not a [A-Za-z0-9\\-]).";
}
}
}
return "";
}
/*
* Split a string into multiple strings when a character is met.
* Returns all tokens in an array.
*/
std::vector<std::string> util::split_string(const std::experimental::string_view &str, const char c)
{
assert(!str.empty());
assert(c);
using std::experimental::string_view;
std::vector<std::string> result;
for (string_view::const_iterator len = str.begin(); len <= str.end(); len++) {
string_view::const_iterator token_start = len;
while (*len != c && *len)
len++;
result.emplace_back(token_start, len);
}
return result;
}
bool util::is_integer(const std::experimental::string_view &s)
{
assert(!s.empty());
for (char c: s) {
if (!std::isdigit(c))
return false;
}
return true;
}
std::string uri::decode(const std::experimental::string_view input) {
std::string res;
res.reserve(input.size());
for (auto it = input.cbegin(), e = input.cend(); it not_eq e; ++it) {
if (*it == '%') {
if (++it >= e) return decode_error(std::move(res));
const uint8_t nibble1 = (*it);
if (++it >= e) return decode_error(std::move(res));
const uint8_t nibble2 = (*it);
res += static_cast<char>(from_hex(nibble1, nibble2));
} else {
if (is_reserved(*it) or is_unreserved(*it))
res += *it;
else
return decode_error(std::move(res));
}
}
return res;
}
int util::ip_version(const std::experimental::string_view &addr)
{
assert(!addr.empty());
/*
* Feels hackish.
*
* TODO: Look into and confirm/bust above statement.
*/
if (string_contains(addr, period))
return ipv4;
return ipv6;
}
void Tial::Testing::Thread::operator()(const std::experimental::string_view &name) {
std::promise<void> result;
this->result = result.get_future();
thread = std::thread([name=name, function=function, checker=Check::checker()](std::promise<void> result){
Utility::Thread::setName(name.to_string());
Check::setChecker(checker);
try {
function();
result.set_value_at_thread_exit();
} catch(std::exception e) {
LOGC << "Exception in subthread: " << e.what();
throw;
} catch(...) {
LOGC << "Exception in subthread";
result.set_exception_at_thread_exit(std::current_exception());
}
}, std::move(result));
}
std::string uri::encode(const std::experimental::string_view input) {
static const std::array<char,16> hex =
{{ '0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f' }};
std::string res;
res.reserve(input.size());
for (const auto chr : input)
if (is_unreserved(chr)) {
res += chr;
} else {
res += '%';
res += hex[ chr >> 4 ];
res += hex[ chr & 0xf ];
}
return res;
}
static bool isOption(const std::experimental::string_view& str)
{
assert(!str.empty());
return str.front() == '-';
}
Exception::Exception(ErrorCode error_id, std::experimental::string_view information) :
m_error_id{error_id},
m_information{information.begin(), information.end()}
{}
void Tial::Utility::Algorithm::removeSuffix(std::experimental::string_view &stringView) {
stringView.remove_suffix(1);
}
void Tial::Utility::Logger::setLoggingLevel(Level level, const std::experimental::string_view &module) {
levels[module.to_string()] = level;
}
Tial::Utility::Logger::Message::Message(
const std::experimental::string_view &file, unsigned int line, const std::experimental::string_view &function,
const std::experimental::string_view &prettyFunction, Level level, const std::experimental::string_view &module,
const TimePoint &time
): file(file.to_string()), line(line), function(function.to_string()), prettyFunction(prettyFunction.to_string()),
level(level), module(module.to_string()), time(time) {}