/* * Copyright (c) 2003 by FlashCode * Bounga * Xahlexx * See README for License detail. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* wee-perl.c: Perl plugin support for WeeChat */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include "../../common/weechat.h" #include "../plugins.h" #include "wee-perl.h" #include "../../common/command.h" #include "../../gui/gui.h" static PerlInterpreter *my_perl = NULL; t_perl_script *perl_scripts = NULL; t_perl_script *last_perl_script = NULL; extern void boot_DynaLoader (pTHX_ CV* cv); /* * IRC::register: startup function for all WeeChat Perl scripts */ static XS (XS_IRC_register) { char *name, *version, *shutdown_func, *description; int integer; t_perl_script *new_perl_script; dXSARGS; name = SvPV (ST (0), integer); version = SvPV (ST (1), integer); shutdown_func = SvPV (ST (2), integer); description = SvPV (ST (3), integer); new_perl_script = (t_perl_script *)malloc (sizeof (t_perl_script)); if (new_perl_script) { new_perl_script->name = strdup (name); new_perl_script->version = strdup (version); new_perl_script->shutdown_func = strdup (shutdown_func); new_perl_script->description = strdup (description); /* add new script to list */ new_perl_script->prev_script = last_perl_script; new_perl_script->next_script = NULL; if (perl_scripts) last_perl_script->next_script = new_perl_script; else perl_scripts = new_perl_script; last_perl_script = new_perl_script; wee_log_printf (_("registered Perl script: \"%s\", version %s (%s)\n"), name, version, description); } else gui_printf (gui_current_window, _("%s unable to load Perl script \"%s\" (not enough memory)\n"), WEECHAT_ERROR, name); XST_mPV (0, VERSION); XSRETURN (1); } /* * IRC::print: print message to current window */ static XS (XS_IRC_print) { int i, integer; char *message; dXSARGS; for (i = 0; i < items; i++) { message = SvPV (ST (i), integer); gui_printf (gui_current_window, "%s%s", message, (message[strlen (message) - 1] == '\n') ? "" : "\n"); } XSRETURN_EMPTY; } /* * IRC::add_message_handler: add handler for messages (privmsg, ...) */ static XS (XS_IRC_add_message_handler) { char *name, *function; int integer; dXSARGS; name = SvPV (ST (0), integer); function = SvPV (ST (1), integer); plugin_handler_add (&plugin_msg_handlers, &last_plugin_msg_handler, PLUGIN_PERL, name, function); XSRETURN_EMPTY; } /* * IRC::add_command_handler: add command handler (define/redefine commands) */ static XS (XS_IRC_add_command_handler) { char *name, *function; int integer; dXSARGS; name = SvPV (ST (0), integer); function = SvPV (ST (1), integer); if (index_command_search (name)) { gui_printf (gui_current_window, _("Perl error: alias or command \"%s\" already exists!\n"), name); } else { plugin_handler_add (&plugin_cmd_handlers, &last_plugin_cmd_handler, PLUGIN_PERL, name, function); } XSRETURN_EMPTY; } /* * xs_init: initialize subroutines */ void xs_init (pTHX) { newXS ("DynaLoader::boot_DynaLoader", boot_DynaLoader, __FILE__); newXS ("IRC::register", XS_IRC_register, "IRC"); newXS ("IRC::print", XS_IRC_print, "IRC"); newXS ("IRC::add_message_handler", XS_IRC_add_message_handler, "IRC"); newXS ("IRC::add_command_handler", XS_IRC_add_command_handler, "IRC"); } /* * wee_perl_init: initialize Perl interface for WeeChat */ void wee_perl_init () { char *perl_args[] = { "", "-e", "0" }; /* Following Perl code is extracted/modified from X-Chat IRC client */ /* X-Chat is (c) 1998-2002 Peter Zelezny */ char *weechat_perl_func = { "sub wee_perl_load_file" "{" " my $filename = shift;" " local $/ = undef;" " open FILE, $filename or return \"__WEECHAT_ERROR__\";" " $_ = ;" " close FILE;" " return $_;" "}" "sub wee_perl_load_eval_file" "{" " my $filename = shift;" " my $content = wee_perl_load_file ($filename);" " if ($content eq \"__WEECHAT_ERROR__\")" " {" " IRC::print \"" WEECHAT_ERROR " Perl script '$filename' not found.\\n\";" " return 1;" " }" " eval $content;" " if ($@)" " {" " IRC::print \"" WEECHAT_ERROR " unable to load Perl script '$filename':\\n\";" " IRC::print \"$@\\n\";" " return 2;" " }" " return 0;" "}" "$SIG{__WARN__} = sub { IRC::print \"$_[0]\n\"; };" }; my_perl = perl_alloc (); perl_construct (my_perl); perl_parse (my_perl, xs_init, 3, perl_args, NULL); eval_pv (weechat_perl_func, TRUE); } /* * wee_perl_search: search a (loaded) Perl script by name */ t_perl_script * wee_perl_search (char *name) { t_perl_script *ptr_perl_script; for (ptr_perl_script = perl_scripts; ptr_perl_script; ptr_perl_script = ptr_perl_script->next_script) { if (strcmp (ptr_perl_script->name, name) == 0) return ptr_perl_script; } /* script not found */ return NULL; } /* * wee_perl_exec: execute a Perl script */ int wee_perl_exec (char *function, char *arguments) { char *argv[2]; int count, return_code; SV *sv; /* call Perl function */ dSP; ENTER; SAVETMPS; PUSHMARK(sp); argv[0] = arguments; argv[1] = NULL; count = perl_call_argv (function, G_EVAL | G_SCALAR, argv); SPAGAIN; /* check if ok */ sv = GvSV (gv_fetchpv ("@", TRUE, SVt_PV)); return_code = 1; if (SvTRUE (sv)) { gui_printf (gui_current_window, _("Perl error: %s\n"), SvPV (sv, count)); POPs; } else { if (count != 1) { gui_printf (gui_current_window, _("Perl error: too much values from \"%s\" (%d). Expected: 1.\n"), function, count); } else return_code = POPi; } PUTBACK; FREETMPS; LEAVE; return return_code; } /* * wee_perl_load: load a Perl script */ int wee_perl_load (char *filename) { /* execute Perl script */ wee_log_printf (_("loading Perl script \"%s\"\n"), filename); return wee_perl_exec ("wee_perl_load_eval_file", filename); } /* * wee_perl_script_free: free a Perl script */ void wee_perl_script_free (t_perl_script *ptr_perl_script) { t_perl_script *new_perl_scripts; /* remove script from list */ if (last_perl_script == ptr_perl_script) last_perl_script = ptr_perl_script->prev_script; if (ptr_perl_script->prev_script) { (ptr_perl_script->prev_script)->next_script = ptr_perl_script->next_script; new_perl_scripts = perl_scripts; } else new_perl_scripts = ptr_perl_script->next_script; if (ptr_perl_script->next_script) (ptr_perl_script->next_script)->prev_script = ptr_perl_script->prev_script; /* free data */ if (ptr_perl_script->name) free (ptr_perl_script->name); if (ptr_perl_script->version) free (ptr_perl_script->version); if (ptr_perl_script->shutdown_func) free (ptr_perl_script->shutdown_func); if (ptr_perl_script->description) free (ptr_perl_script->description); free (ptr_perl_script); perl_scripts = new_perl_scripts; } /* * wee_perl_unload: unload a Perl script */ void wee_perl_unload (t_perl_script *ptr_perl_script) { if (ptr_perl_script) { wee_log_printf (_("unloading Perl script \"%s\"\n"), ptr_perl_script->name); /* call shutdown callback function */ if (ptr_perl_script->shutdown_func[0]) wee_perl_exec (ptr_perl_script->shutdown_func, ""); wee_perl_script_free (ptr_perl_script); } } /* * wee_perl_unload_all: unload all Perl scripts */ void wee_perl_unload_all () { while (perl_scripts) wee_perl_unload (perl_scripts); } /* * wee_perl_end: shutdown Perl interface */ void wee_perl_end () { /* unload all scripts */ wee_perl_unload_all (); /* free Perl interpreter */ if (my_perl) { perl_destruct (my_perl); perl_free (my_perl); } }