ns_set_email.cpp

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/* NickServ core functions
 *
 * (C) 2003-2012 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 "module.h"

static bool SendConfirmMail(User *u, const BotInfo *bi)
{
        int chars[] = {
                ' ', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
                'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y',
                'z', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
                'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y',
                'Z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'
        };
        int idx, min = 1, max = 62;
        Anope::string code;
        for (idx = 0; idx < 9; ++idx)
                code += chars[1 + static_cast<int>((static_cast<float>(max - min)) * static_cast<uint16_t>(rand()) / 65536.0) + min];
        
        u->Account()->Extend("ns_set_email_passcode", new ExtensibleItemClass<Anope::string>(code));

        Anope::string subject = Config->MailEmailchangeSubject;
        Anope::string message = Config->MailEmailchangeMessage;

        subject = subject.replace_all_cs("%e", u->Account()->email);
        subject = subject.replace_all_cs("%N", Config->NetworkName);
        subject = subject.replace_all_cs("%c", code);

        message = message.replace_all_cs("%e", u->Account()->email);
        message = message.replace_all_cs("%N", Config->NetworkName);
        message = message.replace_all_cs("%c", code);

        return Mail::Send(u, u->Account(), bi, subject, message);
}

class CommandNSSetEmail : public Command
{
 public:
        CommandNSSetEmail(Module *creator, const Anope::string &cname = "nickserv/set/email", size_t min = 0) : Command(creator, cname, min, min + 1)
        {
                this->SetDesc(_("Associate an E-mail address with your nickname"));
                this->SetSyntax(_("\037address\037"));
        }

        void Run(CommandSource &source, const Anope::string &user, const Anope::string &param)
        {
                const NickAlias *na = NickAlias::Find(user);
                if (!na)
                {
                        source.Reply(NICK_X_NOT_REGISTERED, user.c_str());
                        return;
                }
                NickCore *nc = na->nc;

                if (param.empty() && Config->NSForceEmail)
                {
                        source.Reply(_("You cannot unset the e-mail on this network."));
                        return;
                }
                else if (Config->NSSecureAdmins && source.nc != nc && nc->IsServicesOper())
                {
                        source.Reply(_("You may not change the email of other services operators."));
                        return;
                }
                else if (!param.empty() && !Mail::Validate(param))
                {
                        source.Reply(MAIL_X_INVALID, param.c_str());
                        return;
                }

                EventReturn MOD_RESULT;
                FOREACH_RESULT(I_OnSetNickOption, OnSetNickOption(source, this, nc, param));
                if (MOD_RESULT == EVENT_STOP)
                        return;

                if (!param.empty() && Config->NSConfirmEmailChanges && !source.IsServicesOper())
                {
                        source.nc->Extend("ns_set_email", new ExtensibleItemClass<Anope::string>(param));
                        Anope::string old = source.nc->email;
                        source.nc->email = param;
                        if (SendConfirmMail(source.GetUser(), source.service))
                                source.Reply(_("A confirmation email has been sent to \002%s\002. Follow the instructions in it to change your email address."), param.c_str());
                        source.nc->email = old;
                }
                else
                {
                        if (!param.empty())
                        {
                                nc->email = param;
                                source.Reply(_("E-mail address for \002%s\002 changed to \002%s\002."), nc->display.c_str(), param.c_str());
                        }
                        else
                        {
                                nc->email.clear();
                                source.Reply(_("E-mail address for \002%s\002 unset."), nc->display.c_str());
                        }
                }

                return;
        }

        void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
        {
                this->Run(source, source.nc->display, params.size() ? params[0] : "");
        }

        bool OnHelp(CommandSource &source, const Anope::string &) anope_override
        {
                this->SendSyntax(source);
                source.Reply(" ");
                source.Reply(_("Associates the given E-mail address with your nickname.\n"
                                "This address will be displayed whenever someone requests\n"
                                "information on the nickname with the \002INFO\002 command."));
                return true;
        }
};

class CommandNSSASetEmail : public CommandNSSetEmail
{
 public:
        CommandNSSASetEmail(Module *creator) : CommandNSSetEmail(creator, "nickserv/saset/email", 2)
        {
                this->ClearSyntax();
                this->SetSyntax(_("\037nickname\037 \037address\037"));
        }

        void Execute(CommandSource &source, const std::vector<Anope::string> &params) anope_override
        {
                this->Run(source, params[0], params.size() > 1 ? params[1] : "");
        }

        bool OnHelp(CommandSource &source, const Anope::string &) anope_override
        {
                this->SendSyntax(source);
                source.Reply(" ");
                source.Reply(_("Associates the given E-mail address with the nickname."));
                return true;
        }
};

class NSSetEmail : public Module
{
        CommandNSSetEmail commandnssetemail;
        CommandNSSASetEmail commandnssasetemail;

 public:
        NSSetEmail(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, CORE),
                commandnssetemail(this), commandnssasetemail(this)
        {
                this->SetAuthor("Anope");

                ModuleManager::Attach(I_OnPreCommand, this);

        }

        EventReturn OnPreCommand(CommandSource &source, Command *command, std::vector<Anope::string> &params) anope_override
        {
                NickCore *uac = source.nc;
                if (command->name == "nickserv/confirm" && !params.empty() && uac)
                {
                        Anope::string *new_email = uac->GetExt<ExtensibleItemClass<Anope::string> *>("ns_set_email"), *passcode = uac->GetExt<ExtensibleItemClass<Anope::string> *>("ns_set_email_passcode");
                        if (new_email && passcode)
                        {
                                if (params[0] == *passcode)
                                {
                                        uac->email = *new_email;
                                        Log(LOG_COMMAND, source, command) << "to confirm their email address change to " << uac->email;
                                        source.Reply(_("Your email address has been changed to \002%s\002."), uac->email.c_str());
                                        uac->Shrink("ns_set_email");
                                        uac->Shrink("ns_set_email_passcode");
                                        return EVENT_STOP;
                                }
                        }
                }

                return EVENT_CONTINUE;
        }
};

MODULE_INIT(NSSetEmail)