pidgin/pidgin

Use the leaky bucket algorithm to rate limit irc messages.
release-2.x.y
2022-04-23, Gary Kramlich
c49dcf00bee6
Use the leaky bucket algorithm to rate limit irc messages.

The default values were suggested by an operator of libera.

We don't rate limit the login process, nor parts and quits. However, if you
paste a bunch of text and then part a channel, you will be spammed with a
bunch of "no such nick/channel" error dialogs. I tried to work around this,
but the alternative just makes irc unresponsive until all the pasted messages
are sent. That said, other messages are still delayed while these errors
dialogs are slowly popping up.

Testing Done:
Lots

Bugs closed: PIDGIN-11089

Reviewed at https://reviews.imfreedom.org/r/524/
dnl ###########################################################################
dnl # Configure paths for libpurple
dnl # Gary Kramlich 2005
dnl #
dnl # Based off of glib-2.0.m4 by Owen Taylor
dnl ###########################################################################
dnl ###########################################################################
dnl # AM_PATH_PURPLE([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl #
dnl # Test for purple and define PURPLE_CFLAGS, PURPLE_LIBS, PURPLE_DATADIR, and
dnl # PURPLE_LIBDIR
dnl ###########################################################################
AC_DEFUN([AM_PATH_PURPLE],
[dnl
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
no_purple=""
if test x"$PKG_CONFIG" != x"no" ; then
if $PKG_CONFIG --atleast-pkgconfig-version 0.7 ; then
:
else
echo "*** pkg-config is too old; version 0.7 or newer is required."
no_purple="yes"
PKG_CONFIG="no"
fi
else
no_purple="yes"
fi
min_version=ifelse([$1], ,2.0.0,$1)
found_version=""
AC_MSG_CHECKING(for purple - version >= $min_version)
if test x"$no_purple" = x"" ; then
PURPLE_DATADIR=`$PKG_CONFIG --variable=datadir purple`
PURPLE_LIBDIR=`$PKG_CONFIG --variable=libdir purple`
PURPLE_CFLAGS=`$PKG_CONFIG --cflags purple`
PURPLE_LIBS=`$PKG_CONFIG --libs purple`
purple_version=`$PKG_CONFIG --modversion purple`
purple_major_version=`echo $purple_version | cut -d. -f 1`
purple_minor_version=`echo $purple_version | cut -d. -f 2`
dnl # stash the micro version in a temp variable. Then stash
dnl # the numeric for it in purple_micro_version and anything
dnl # else in purple_extra_version.
purple_micro_version_temp=`echo $purple_version | cut -d. -f 3`
purple_micro_version=`echo $purple_micro_version_temp | sed 's/[[^0-9]]//g'`
purple_extra_version=`echo $purple_micro_version_temp | sed 's/[[0-9]]//g'`
dnl # get the major, minor, and macro that the user gave us
min_major_version=`echo $min_version | cut -d. -f 1`
min_minor_version=`echo $min_version | cut -d. -f 2`
min_micro_version=`echo $min_version | cut -d. -f 3`
dnl # check the users version against the version from pkg-config
if test $purple_major_version -eq $min_major_version -a \
$purple_minor_version -ge $min_minor_version -a \
$purple_micro_version -ge $min_micro_version
then
:
else
no_purple="yes"
found_version="$purple_major_version.$purple_minor_version.$purple_micro_version$purple_extra_version"
fi
dnl # Do we want a compile test here?
fi
if test x"$no_purple" = x"" ; then
AC_MSG_RESULT(yes (version $purple_major_version.$purple_minor_version.$purple_micro_version$purple_extra_version))
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test x"$PKG_CONFIG" = x"no" ; then
echo "*** A new enough version of pkg-config was not found."
echo "*** See http://www.freedesktop.org/software/pkgconfig/"
fi
if test x"found_version" != x"" ; then
echo "*** A new enough version of purple was not found."
echo "*** You have version $found_version"
echo "*** See http://pidgin.im/"
fi
PURPLE_CFLAGS=""
PURPLE_LIBS=""
PURPLE_DATADIR=""
PURPLE_LIBDIR=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(PURPLE_CFLAGS)
AC_SUBST(PURPLE_LIBS)
AC_SUBST(PURPLE_DATADIR)
AC_SUBST(PURPLE_LIBDIR)
])