anope/src/core/ms_read.c

/* MemoServ core functions
 *
 * (C) 2003-2009 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.
 *
 * $Id$
 *
 */
/*************************************************************************/

#include "module.h"

int read_memo_callback(User *u, int num, va_list args);
int read_memo(User *u, int index, MemoInfo *mi, const char *chan);
void myMemoServHelp(User *u);
extern void rsend_notify(User *u, Memo *m, const char *chan);

class CommandMSRead : public Command
{
 public:
	CommandMSRead() : Command("READ", 0, 2)
	{
	}

	CommandReturn Execute(User *u, std::vector<std::string> &params)
	{
		MemoInfo *mi;
		ChannelInfo *ci;
		const char *numstr = params.size() ? params[0].c_str() : NULL, *chan = NULL;
		int num, count;

		if (numstr && *numstr == '#')
		{
			chan = numstr;
			numstr = params.size() > 1 ? params[1].c_str() : NULL;
			if (!(ci = cs_findchan(chan)))
			{
				notice_lang(s_MemoServ, u, CHAN_X_NOT_REGISTERED, chan);
				return MOD_CONT;
			}
			else if (ci->flags & CI_FORBIDDEN)
			{
				notice_lang(s_MemoServ, u, CHAN_X_FORBIDDEN, chan);
				return MOD_CONT;
			}
			else if (!check_access(u, ci, CA_MEMO))
			{
				notice_lang(s_MemoServ, u, ACCESS_DENIED);
				return MOD_CONT;
			}
			mi = &ci->memos;
		}
		else
		{
			if (!nick_identified(u))
			{
				notice_lang(s_MemoServ, u, NICK_IDENTIFY_REQUIRED, s_NickServ);
				return MOD_CONT;
			}
			mi = &u->nc->memos;
		}
		num = numstr ? atoi(numstr) : -1;
		if (!numstr || (stricmp(numstr, "LAST") && stricmp(numstr, "NEW") && num <= 0))
			this->OnSyntaxError(u);
		else if (mi->memos.empty())
		{
			if (chan)
				notice_lang(s_MemoServ, u, MEMO_X_HAS_NO_MEMOS, chan);
			else
				notice_lang(s_MemoServ, u, MEMO_HAVE_NO_MEMOS);
		}
		else {
			int i;

			if (!stricmp(numstr, "NEW"))
			{
				int readcount = 0;
				for (i = 0; i < mi->memos.size(); ++i)
				{
					if (mi->memos[i]->flags & MF_UNREAD)
					{
						read_memo(u, i, mi, chan);
						++readcount;
					}
				}
				if (!readcount)
				{
					if (chan)
						notice_lang(s_MemoServ, u, MEMO_X_HAS_NO_NEW_MEMOS, chan);
					else
						notice_lang(s_MemoServ, u, MEMO_HAVE_NO_NEW_MEMOS);
				}
			}
			else if (!stricmp(numstr, "LAST"))
			{
				for (i = 0; i < mi->memos.size() - 1; ++i);
				read_memo(u, i, mi, chan);
			}
			else /* number[s] */
			{
				if (!process_numlist(numstr, &count, read_memo_callback, u, mi, chan))
				{
					if (count == 1)
						notice_lang(s_MemoServ, u, MEMO_DOES_NOT_EXIST, num);
					else
						notice_lang(s_MemoServ, u, MEMO_LIST_NOT_FOUND, numstr);
				}
			}
		}
		return MOD_CONT;
	}

	bool OnHelp(User *u, const std::string &subcommand)
	{
		notice_help(s_MemoServ, u, MEMO_HELP_READ);
		return true;
	}

	void OnSyntaxError(User *u)
	{
		syntax_error(s_MemoServ, u, "READ", MEMO_READ_SYNTAX);
	}
};

class MSRead : public Module
{
 public:
	MSRead(const std::string &modname, const std::string &creator) : Module(modname, creator)
	{
		this->SetAuthor("Anope");
		this->SetVersion("$Id$");
		this->SetType(CORE);
		this->AddCommand(MEMOSERV, new CommandMSRead(), MOD_UNIQUE);
		this->SetMemoHelp(myMemoServHelp);
	}
};

/**
 * Add the help response to anopes /ms help output.
 * @param u The user who is requesting help
 **/
void myMemoServHelp(User *u)
{
	notice_lang(s_MemoServ, u, MEMO_HELP_CMD_READ);
}

/**
 * Read a memo callback function
 * @param u User Struct
 * @param int Index number
 * @param va_list variable arguements
 * @return result of read_memo()
 */
int read_memo_callback(User *u, int num, va_list args)
{
	MemoInfo *mi = va_arg(args, MemoInfo *);
	const char *chan = va_arg(args, const char *);
	int i;

	for (i = 0; i < mi->memos.size(); ++i)
	{
		if (mi->memos[i]->number == num)
			break;
	}
	/* Range check done in read_memo */
	return read_memo(u, i, mi, chan);
}

/**
 * Read a memo
 * @param u User Struct
 * @param int Index number
 * @param mi MemoInfo struct
 * @param chan Channel Name
 * @return 1 on success, 0 if failed
 */
int read_memo(User *u, int index, MemoInfo *mi, const char *chan)
{
	Memo *m;
	char timebuf[64];
	struct tm tm;

	if (index < 0 || index >= mi->memos.size())
		return 0;
	m = mi->memos[index];
	tm = *localtime(&m->time);
	strftime_lang(timebuf, sizeof(timebuf), u, STRFTIME_DATE_TIME_FORMAT, &tm);
	timebuf[sizeof(timebuf) - 1] = 0;
	if (chan)
		notice_lang(s_MemoServ, u, MEMO_CHAN_HEADER, m->number, m->sender, timebuf, s_MemoServ, chan, m->number);
	else
		notice_lang(s_MemoServ, u, MEMO_HEADER, m->number, m->sender, timebuf, s_MemoServ, m->number);
	notice_lang(s_MemoServ, u, MEMO_TEXT, m->text);
	m->flags &= ~MF_UNREAD;

	/* Check if a receipt notification was requested */
	if (m->flags & MF_RECEIPT)
		rsend_notify(u, m, chan);

	return 1;
}

MODULE_INIT("ms_read", MSRead)