/* * Copyright (c) 2003-2008 by FlashCode * See README for License detail, AUTHORS for developers list. * * 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 3 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, see . */ /* weechat-perl.c: Perl plugin for WeeChat */ #undef _ #include #include #include #include "../../weechat-plugin.h" #include "../script.h" #include "weechat-perl.h" #include "weechat-perl-api.h" WEECHAT_PLUGIN_NAME("perl"); WEECHAT_PLUGIN_DESCRIPTION("Perl plugin for WeeChat"); WEECHAT_PLUGIN_AUTHOR("FlashCode "); WEECHAT_PLUGIN_VERSION(WEECHAT_VERSION); WEECHAT_PLUGIN_WEECHAT_VERSION(WEECHAT_VERSION); WEECHAT_PLUGIN_LICENSE("GPL"); struct t_weechat_plugin *weechat_perl_plugin = NULL; struct t_plugin_script *perl_scripts = NULL; struct t_plugin_script *perl_current_script = NULL; char *perl_current_script_filename = NULL; #ifdef NO_PERL_MULTIPLICITY #undef MULTIPLICITY #endif #ifndef MULTIPLICITY #define PKG_NAME_PREFIX "WeechatPerlPackage" static PerlInterpreter *perl_main = NULL; int perl_num = 0; #endif char *perl_weechat_code = { #ifndef MULTIPLICITY "package WeechatPerlScriptLoader;" #endif "$weechat_perl_load_eval_file_error = \"\";" "sub weechat_perl_load_file" "{" " my $filename = shift;" " local $/ = undef;" " open FILE, $filename or return \"__WEECHAT_PERL_ERROR__\";" " $_ = ;" " close FILE;" " return $_;" "}" "sub weechat_perl_load_eval_file" "{" #ifdef MULTIPLICITY " my $filename = shift;" #else " my ($filename, $package) = @_;" #endif " my $content = weechat_perl_load_file ($filename);" " if ($content eq \"__WEECHAT_PERL_ERROR__\")" " {" " return 1;" " }" #ifdef MULTIPLICITY " my $eval = $content;" #else " my $eval = qq{package $package; $content;};" #endif " {" " eval $eval;" " }" " if ($@)" " {" " $weechat_perl_load_eval_file_error = $@;" " return 2;" " }" " return 0;" "}" "$SIG{__WARN__} = sub { weechat::print(\"\", \"perl error: $_[0]\"); };" "$SIG{__DIE__} = sub { weechat::print(\"\", \"perl error: $_[0]\"); };" }; /* * weechat_perl_exec: execute a Perl script */ void * weechat_perl_exec (struct t_plugin_script *script, int ret_type, char *function, char **argv) { char *func; unsigned int count; void *ret_value; int *ret_i, mem_err, length; SV *ret_s; /* this code is placed here to conform ISO C90 */ dSP; #ifdef MULTIPLICITY (void) length; func = function; PERL_SET_CONTEXT (script->interpreter); #else length = strlen (script->interpreter) + strlen (function) + 3; func = malloc (length); if (!func) return NULL; snprintf (func, length, "%s::%s", (char *) script->interpreter, function); #endif ENTER; SAVETMPS; PUSHMARK(sp); /* are we loading the script file ? */ if (strcmp (function, "weechat_perl_load_eval_file") != 0) perl_current_script = script; count = perl_call_argv (func, G_EVAL | G_SCALAR, argv); ret_value = NULL; mem_err = 1; SPAGAIN; if (SvTRUE (ERRSV)) { weechat_printf (NULL, weechat_gettext ("%s%s: error: %s"), weechat_prefix ("error"), "perl", SvPV_nolen (ERRSV)); (void) POPs; /* poping the 'undef' */ mem_err = 0; } else { if (count != 1) { weechat_printf (NULL, weechat_gettext ("%s%s: function \"%s\" must " "return one valid value (%d)"), weechat_prefix ("error"), "perl", function, count); mem_err = 0; } else { if (ret_type == WEECHAT_SCRIPT_EXEC_STRING) { ret_s = newSVsv(POPs); ret_value = strdup (SvPV_nolen (ret_s)); SvREFCNT_dec (ret_s); } else if (ret_type == WEECHAT_SCRIPT_EXEC_INT) { ret_i = malloc (sizeof (*ret_i)); if (ret_i) *ret_i = POPi; ret_value = ret_i; } else { weechat_printf (NULL, weechat_gettext ("%s%s: function \"%s\" is " "internally misused"), weechat_prefix ("error"), "perl", function); mem_err = 0; } } } PUTBACK; FREETMPS; LEAVE; #ifndef MULTIPLICITY free (func); #endif if (!ret_value && (mem_err == 1)) { weechat_printf (NULL, weechat_gettext ("%s%s: not enough memory in function " "\"%s\""), weechat_prefix ("error"), "perl", function); return NULL; } return ret_value; } /* * weechat_perl_load: load a Perl script */ int weechat_perl_load (char *filename) { STRLEN len; struct t_plugin_script tempscript; int *eval; struct stat buf; char *perl_argv[2]; #ifdef MULTIPLICITY PerlInterpreter *perl_current_interpreter; char *perl_args[] = { "", "-e", "0" }; #else char pkgname[64]; #endif if (stat (filename, &buf) != 0) { weechat_printf (NULL, weechat_gettext ("%s%s: script \"%s\" not found"), weechat_prefix ("error"), "perl", filename); return 0; } weechat_printf (NULL, weechat_gettext ("%s%s: loading script \"%s\""), weechat_prefix ("info"), "perl", filename); perl_current_script = NULL; #ifdef MULTIPLICITY perl_current_interpreter = perl_alloc(); if (!perl_current_interpreter) { weechat_printf (NULL, weechat_gettext ("%s%s: unable to create new " "sub-interpreter"), weechat_prefix ("error"), "perl"); return 0; } perl_current_script_filename = filename; PERL_SET_CONTEXT (perl_current_interpreter); perl_construct (perl_current_interpreter); tempscript.interpreter = (PerlInterpreter *) perl_current_interpreter; perl_parse (perl_current_interpreter, weechat_perl_api_init, 3, perl_args, NULL); eval_pv (perl_weechat_code, TRUE); perl_argv[0] = filename; perl_argv[1] = NULL; #else snprintf (pkgname, sizeof(pkgname), "%s%d", PKG_NAME_PREFIX, perl_num); perl_num++; tempscript.interpreter = "WeechatPerlScriptLoader"; perl_argv[0] = filename; perl_argv[1] = pkgname; perl_argv[2] = NULL; #endif eval = weechat_perl_exec (&tempscript, WEECHAT_SCRIPT_EXEC_INT, "weechat_perl_load_eval_file", perl_argv); if (!eval) { weechat_printf (NULL, weechat_gettext ("%s%s: not enough memory to parse " "file \"%s\""), weechat_prefix ("error"), "perl", filename); return 0; } if (*eval != 0) { if (*eval == 2) { weechat_printf (NULL, weechat_gettext ("%s%s: unable to parse file " "\"%s\""), weechat_prefix ("error"), "perl", filename); weechat_printf (NULL, weechat_gettext ("%s%s: error: %s"), weechat_prefix ("error"), "perl", #ifdef MULTIPLICITY SvPV(perl_get_sv("weechat_perl_load_eval_file_error", FALSE), len) #else SvPV(perl_get_sv("WeechatPerlScriptLoader::" "weechat_perl_load_eval_file_error", FALSE), len) #endif ); } else if (*eval == 1) { weechat_printf (NULL, weechat_gettext ("%s%s: unable to run file \"%s\""), weechat_prefix ("error"), "perl", filename); } else { weechat_printf (NULL, weechat_gettext ("%s%s: unknown error while " "loading file \"%s\""), weechat_prefix ("error"), "perl", filename); } #ifdef MULTIPLICITY perl_destruct (perl_current_interpreter); perl_free (perl_current_interpreter); #endif if (perl_current_script && (perl_current_script != &tempscript)) { script_remove (weechat_perl_plugin, &perl_scripts, perl_current_script); } free (eval); return 0; } free (eval); if (!perl_current_script) { weechat_printf (NULL, weechat_gettext ("%s%s: function \"register\" not " "found (or failed) in file \"%s\""), weechat_prefix ("error"), "perl", filename); #ifdef MULTIPLICITY perl_destruct (perl_current_interpreter); perl_free (perl_current_interpreter); #endif return 0; } #ifdef MULTIPLICITY perl_current_script->interpreter = (PerlInterpreter *)perl_current_interpreter; #else perl_current_script->interpreter = strdup (pkgname); #endif return 1; } /* * weechat_perl_load_cb: callback for weechat_script_auto_load() function */ int weechat_perl_load_cb (void *data, char *filename) { /* make C compiler happy */ (void) data; return weechat_perl_load (filename); } /* * weechat_perl_unload: unload a Perl script */ void weechat_perl_unload (struct t_plugin_script *script) { int *r; char *perl_argv[1] = { NULL }; weechat_printf (NULL, weechat_gettext ("%s%s: unloading script \"%s\""), weechat_prefix ("info"), "perl", script->name); #ifdef MULTIPLICITY PERL_SET_CONTEXT (script->interpreter); #else eval_pv (script->interpreter, TRUE); #endif if (script->shutdown_func && script->shutdown_func[0]) { r = (int *) weechat_perl_exec (script, WEECHAT_SCRIPT_EXEC_INT, script->shutdown_func, perl_argv); if (r) free (r); } #ifdef MULTIPLICITY perl_destruct (script->interpreter); perl_free (script->interpreter); #else if (script->interpreter) free (script->interpreter); #endif script_remove (weechat_perl_plugin, &perl_scripts, script); } /* * weechat_perl_unload_name: unload a Perl script by name */ void weechat_perl_unload_name (char *name) { struct t_plugin_script *ptr_script; ptr_script = script_search (weechat_perl_plugin, perl_scripts, name); if (ptr_script) { weechat_perl_unload (ptr_script); weechat_printf (NULL, weechat_gettext ("%s%s: script \"%s\" unloaded"), weechat_prefix ("info"), "perl", name); } else { weechat_printf (NULL, weechat_gettext ("%s%s: script \"%s\" not loaded"), weechat_prefix ("error"), "perl", name); } } /* * weechat_perl_unload_all: unload all Perl scripts */ void weechat_perl_unload_all () { while (perl_scripts) { weechat_perl_unload (perl_scripts); } } /* * weechat_perl_command_cb: callback for "/perl" command */ int weechat_perl_command_cb (void *data, struct t_gui_buffer *buffer, int argc, char **argv, char **argv_eol) { char *path_script; /* make C compiler happy */ (void) data; (void) buffer; if (argc == 1) { script_display_list (weechat_perl_plugin, perl_scripts, NULL, 0); } else if (argc == 2) { if (weechat_strcasecmp (argv[1], "list") == 0) { script_display_list (weechat_perl_plugin, perl_scripts, NULL, 0); } else if (weechat_strcasecmp (argv[1], "listfull") == 0) { script_display_list (weechat_perl_plugin, perl_scripts, NULL, 1); } else if (weechat_strcasecmp (argv[1], "autoload") == 0) { script_auto_load (weechat_perl_plugin, &weechat_perl_load_cb); } else if (weechat_strcasecmp (argv[1], "reload") == 0) { weechat_perl_unload_all (); script_auto_load (weechat_perl_plugin, &weechat_perl_load_cb); } else if (weechat_strcasecmp (argv[1], "unload") == 0) { weechat_perl_unload_all (); } } else { if (weechat_strcasecmp (argv[1], "list") == 0) { script_display_list (weechat_perl_plugin, perl_scripts, argv_eol[2], 0); } else if (weechat_strcasecmp (argv[1], "listfull") == 0) { script_display_list (weechat_perl_plugin, perl_scripts, argv_eol[2], 1); } else if (weechat_strcasecmp (argv[1], "load") == 0) { /* load Perl script */ path_script = script_search_full_name (weechat_perl_plugin, argv_eol[2]); weechat_perl_load ((path_script) ? path_script : argv_eol[2]); if (path_script) free (path_script); } else if (weechat_strcasecmp (argv[1], "unload") == 0) { /* unload Perl script */ weechat_perl_unload_name (argv_eol[2]); } else { weechat_printf (NULL, weechat_gettext ("%s%s: unknown option for " "command \"%s\""), weechat_prefix ("error"), "perl", "perl"); } } return WEECHAT_RC_OK; } /* * weechat_perl_completion_cb: callback for script completion */ int weechat_perl_completion_cb (void *data, char *completion, struct t_gui_buffer *buffer, struct t_weelist *list) { /* make C compiler happy */ (void) data; (void) completion; (void) buffer; script_completion (weechat_perl_plugin, list, perl_scripts); return WEECHAT_RC_OK; } /* * weechat_perl_debug_dump_cb: dump Perl plugin data in WeeChat log file */ int weechat_perl_debug_dump_cb (void *data, char *signal, char *type_data, void *signal_data) { /* make C compiler happy */ (void) data; (void) signal; (void) type_data; (void) signal_data; script_print_log (weechat_perl_plugin, perl_scripts); return WEECHAT_RC_OK; } /* * weechat_plugin_init: initialize Perl plugin */ int weechat_plugin_init (struct t_weechat_plugin *plugin) { #ifndef MULTIPLICITY char *perl_args[] = { "", "-e", "0" }; #endif weechat_perl_plugin = plugin; #ifndef MULTIPLICITY perl_main = perl_alloc (); if (!perl_main) { weechat_printf (NULL, weechat_gettext ("%s%s: unable to initialize %s"), weechat_prefix ("error"), "perl", "perl"); return WEECHAT_RC_ERROR; } perl_construct (perl_main); perl_parse (perl_main, weechat_perl_api_init, 3, perl_args, NULL); eval_pv (perl_weechat_code, TRUE); #endif script_init (weechat_perl_plugin, &weechat_perl_command_cb, &weechat_perl_completion_cb, &weechat_perl_debug_dump_cb, &weechat_perl_load_cb); /* init ok */ return WEECHAT_RC_OK; } /* * weechat_plugin_end: end Perl plugin */ int weechat_plugin_end (struct t_weechat_plugin *plugin) { /* make C compiler happy */ (void) plugin; /* unload all scripts */ weechat_perl_unload_all (); #ifndef MULTIPLICITY /* free perl intepreter */ if (perl_main) { perl_destruct (perl_main); perl_free (perl_main); perl_main = NULL; } #endif return WEECHAT_RC_OK; }