std::string encode_field(str_ref v, bool add_br)
{
std::string r;
r.reserve(v.size() << 1);
while (v)
{
if (boost::istarts_with(v, "ftp://")
|| boost::istarts_with(v, "http://")
|| boost::istarts_with(v, "https://")
|| boost::istarts_with(v, "mailto:"))
{
size_t p = 0;
while (p < v.size() && !isspace(v[p] & 0xff) && v[p] != '\"' && v[p] != '<' && v[p] != '>' && v[p] != '[' && v[p] != ']')
p++;
if (v[p - 1] == '!' || v[p - 1] == ',' || v[p - 1] == '.' || v[p - 1] == '?')
p--;
if (v[p - 1] == ')')
p--;
str_ref url = v.substr(0, p);
if (boost::istarts_with(v, "ftp."))
r += web_link(url, "ftp://" + url.s());
else if (boost::istarts_with(v, "www."))
r += web_link(url, "http://" + url.s());
else
r += web_link(boost::istarts_with(v, "mailto:") ? url.substr(7) : url, url);
while (p--)
v.pop_front();
}
else
{
switch (v.front())
{
case '\n':
r += add_br ? "<br>" : " ";
break;
case '\r':
break;
case '&':
r += "&";
break;
case '<':
r += "<";
break;
default:
r += v.front();
}
v.pop_front();
}
}
return r;
}
static int send_recv(const string& host, int port, str_ref s0, string& d)
{
Csocket s;
s.open(SOCK_STREAM, true);
if (s == -1)
{
d += "unable to create socket: " + Csocket::error2a(WSAGetLastError());
return 1;
}
d = (boost::format("server: %s:%d (%s)\r\n") % host % port % Csocket::inet_ntoa(Csocket::get_host(host))).str();
if (s.connect(Csocket::get_host(host), htons(port)))
{
d += "unable to connect: " + Csocket::error2a(WSAGetLastError());
return 1;
}
if (s0.size() != s.send(s0))
{
d += "unable to send: " + Csocket::error2a(WSAGetLastError());
return 1;
}
array<char, 4 << 10> d0;
while (int e = s.recv(d0))
{
if (e == SOCKET_ERROR)
{
d += "unable to receive: " + Csocket::error2a(WSAGetLastError());
return 1;
}
d.append(d0.data(), e);
}
return 0;
}
std::string encode_text(str_ref v, bool add_quote_class)
{
std::string r;
r.reserve(v.size() << 1);
while (v)
{
str_ref line = read_until(v, '\n');
r += add_quote_class && boost::istarts_with(line, "> ") ? "<span class=quote>" + encode_field(line) + "</span>" : encode_field(line);
r += "<br>";
}
return r;
}
static std::string web_encode(str_ref v)
{
std::string d;
d.reserve(v.size() << 1);
while (v)
{
switch (v.front())
{
case '"':
d += """;
break;
case '&':
d += "&";
break;
case '<':
d += "<";
break;
default:
d += v.front();
}
v.pop_front();
}
return d;
}
int Cbvalue::write(str_ref s)
{
return write(s.data(), s.size());
}
static bool operator==(str_ref a, const char* b)
{
return a.size() == strlen(b) && !memcmp(a.data(), b, a.size());
}
int Csocket::sendto(str_ref s, const sockaddr* a, socklen_t cb_a) const
{
return ::sendto(*this, s.data(), s.size(), MSG_NOSIGNAL, a, cb_a);
}
int Csocket::send(str_ref s) const
{
return ::send(*this, s.data(), s.size(), MSG_NOSIGNAL);
}
