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/*
*
* (C) 2003-2025 Anope Team
* Contact us at team@anope.org
*
* Please read COPYING and README for further details.
*
* Based on the original code of Epona by Lara.
* Based on the original code of Services by Andy Church.
*/
#include <cerrno>
#include "services.h"
#include "mail.h"
#include "config.h"
Mail::Message::Message(const Anope::string &sf, const Anope::string &mailto, const Anope::string &a, const Anope::string &s, const Anope::string &m)
: Thread()
, sendmail_path(Config->GetBlock("mail").Get<const Anope::string>("sendmailpath", "/usr/sbin/sendmail -it"))
, send_from(sf)
, mail_to(mailto)
, addr(a)
, subject(s)
, message(m)
, content_type(Config->GetBlock("mail").Get<const Anope::string>("content_type", "text/plain; charset=UTF-8"))
, dont_quote_addresses(Config->GetBlock("mail").Get<bool>("dontquoteaddresses"))
{
}
Mail::Message::~Message()
{
if (error.empty())
Log(LOG_NORMAL, "mail") << "Successfully delivered mail for " << mail_to << " (" << addr << ")";
else
Log(LOG_NORMAL, "mail") << "Error delivering mail for " << mail_to << " (" << addr << "): " << error;
}
void Mail::Message::Run()
{
errno = 0;
auto *pipe = popen(sendmail_path.c_str(), "w");
if (!pipe)
{
error = strerror(errno);
SetExitState();
return;
}
fprintf(pipe, "From: %s\r\n", send_from.c_str());
if (this->dont_quote_addresses)
fprintf(pipe, "To: %s <%s>\r\n", mail_to.c_str(), addr.c_str());
else
fprintf(pipe, "To: \"%s\" <%s>\r\n", mail_to.replace_all_cs("\\", "\\\\").c_str(), addr.c_str());
fprintf(pipe, "Subject: %s\r\n", subject.c_str());
fprintf(pipe, "Content-Type: %s\r\n", content_type.c_str());
fprintf(pipe, "Content-Transfer-Encoding: 8bit\r\n");
fprintf(pipe, "\r\n");
std::stringstream stream(message.str());
for (Anope::string line; std::getline(stream, line.str()); )
fprintf(pipe, "%s\r\n", line.c_str());
fprintf(pipe, "\r\n");
auto result = pclose(pipe);
if (result > 0)
error = "Sendmail exited with code " + Anope::ToString(result);
SetExitState();
}
bool Mail::Send(User *u, NickCore *nc, BotInfo *service, const Anope::string &subject, const Anope::string &message)
{
if (!nc || !service || subject.empty() || message.empty())
return false;
const auto &b = Config->GetBlock("mail");
if (!u)
{
if (!b.Get<bool>("usemail") || b.Get<const Anope::string>("sendfrom").empty())
return false;
else if (nc->email.empty())
return false;
nc->lastmail = Anope::CurTime;
Thread *t = new Mail::Message(b.Get<const Anope::string>("sendfrom"), nc->display, nc->email, subject, message);
t->Start();
return true;
}
else
{
if (!b.Get<bool>("usemail") || b.Get<const Anope::string>("sendfrom").empty())
u->SendMessage(service, _("Services have been configured to not send mail."));
else if (Anope::CurTime - u->lastmail < b.Get<time_t>("delay"))
{
const auto delay = b.Get<time_t>("delay") - (Anope::CurTime - u->lastmail);
u->SendMessage(service, _("Please wait \002%s\002 and retry."), Anope::Duration(delay, u->Account()).c_str());
}
else if (nc->email.empty())
u->SendMessage(service, _("Email for \002%s\002 is invalid."), nc->display.c_str());
else
{
u->lastmail = nc->lastmail = Anope::CurTime;
Thread *t = new Mail::Message(b.Get<const Anope::string>("sendfrom"), nc->display, nc->email, subject, message);
t->Start();
return true;
}
return false;
}
}
bool Mail::Send(NickCore *nc, const Anope::string &subject, const Anope::string &message)
{
const auto &b = Config->GetBlock("mail");
if (!b.Get<bool>("usemail") || b.Get<const Anope::string>("sendfrom").empty() || !nc || nc->email.empty() || subject.empty() || message.empty())
return false;
nc->lastmail = Anope::CurTime;
Thread *t = new Mail::Message(b.Get<const Anope::string>("sendfrom"), nc->display, nc->email, subject, message);
t->Start();
return true;
}
/**
* Checks whether we have a valid, common email address.
* This is NOT entirely RFC compliant, and won't be so, because I said
* *common* cases. ;) It is very unlikely that email addresses that
* are really being used will fail the check.
*
* @param email Email to Validate
* @return bool
*/
bool Mail::Validate(const Anope::string &email)
{
bool has_period = false;
static char specials[] = {'(', ')', '<', '>', '@', ',', ';', ':', '\\', '\"', '[', ']', ' '};
if (email.empty())
return false;
Anope::string copy = email;
size_t at = copy.find('@');
if (at == Anope::string::npos)
return false;
Anope::string domain = copy.substr(at + 1);
copy = copy.substr(0, at);
/* Don't accept empty copy or domain. */
if (copy.empty() || domain.empty())
return false;
/* Check for forbidden characters in the name */
for (auto chr : copy)
{
if (chr <= 31 || chr >= 127)
return false;
for (auto special : specials)
{
if (chr == special)
return false;
}
}
/* Check for forbidden characters in the domain */
for (unsigned i = 0, end = domain.length(); i < end; ++i)
{
if (domain[i] <= 31 || domain[i] >= 127)
return false;
for (auto special : specials)
{
if (domain[i] == special)
return false;
}
if (domain[i] == '.')
{
if (!i || i == end - 1)
return false;
has_period = true;
}
}
return has_period;
}
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