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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#define OWL_PERL
#include "owl.h"
extern XS(boot_BarnOwl);
extern XS(boot_DynaLoader);
/* extern XS(boot_DBI); */
void owl_perl_xs_init(pTHX) /* noproto */
{
const char *file = __FILE__;
dXSUB_SYS;
{
newXS("BarnOwl::bootstrap", boot_BarnOwl, file);
newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
}
}
SV *owl_new_sv(const char * str)
{
SV *ret = newSVpv(str, 0);
if (is_utf8_string((const U8 *)str, strlen(str))) {
SvUTF8_on(ret);
} else {
char *escape = owl_escape_highbit(str);
owl_function_error("Internal error! Non-UTF-8 string encountered:\n%s", escape);
g_free(escape);
}
return ret;
}
AV *owl_new_av(const owl_list *l, SV *(*to_sv)(const void *))
{
AV *ret;
int i;
void *element;
ret = newAV();
for (i = 0; i < owl_list_get_size(l); i++) {
element = owl_list_get_element(l, i);
av_push(ret, to_sv(element));
}
return ret;
}
HV *owl_new_hv(const owl_dict *d, SV *(*to_sv)(const void *))
{
HV *ret;
owl_list l;
const char *key;
void *element;
int i;
ret = newHV();
/* TODO: add an iterator-like interface to owl_dict */
owl_list_create(&l);
owl_dict_get_keys(d, &l);
for (i = 0; i < owl_list_get_size(&l); i++) {
key = owl_list_get_element(&l, i);
element = owl_dict_find_element(d, key);
(void)hv_store(ret, key, strlen(key), to_sv(element), 0);
}
owl_list_cleanup(&l, g_free);
return ret;
}
SV *owl_perlconfig_message2hashref(const owl_message *m)
{
HV *h, *stash;
SV *hr;
const char *type;
char *ptr, *utype, *blessas;
int i, j;
const owl_pair *pair;
const owl_filter *wrap;
if (!m) return &PL_sv_undef;
wrap = owl_global_get_filter(&g, "wordwrap");
if(!wrap) {
owl_function_error("wrap filter is not defined");
return &PL_sv_undef;
}
h = newHV();
#define MSG2H(h,field) (void)hv_store(h, #field, strlen(#field), \
owl_new_sv(owl_message_get_##field(m)), 0)
if (owl_message_is_type_zephyr(m)
&& owl_message_is_direction_in(m)) {
/* Handle zephyr-specific fields... */
AV *av_zfields;
av_zfields = newAV();
j=owl_zephyr_get_num_fields(owl_message_get_notice(m));
for (i=0; i<j; i++) {
ptr=owl_zephyr_get_field_as_utf8(owl_message_get_notice(m), i+1);
av_push(av_zfields, owl_new_sv(ptr));
g_free(ptr);
}
(void)hv_store(h, "fields", strlen("fields"), newRV_noinc((SV*)av_zfields), 0);
(void)hv_store(h, "auth", strlen("auth"),
owl_new_sv(owl_zephyr_get_authstr(owl_message_get_notice(m))),0);
}
j=owl_list_get_size(&(m->attributes));
for(i=0; i<j; i++) {
pair=owl_list_get_element(&(m->attributes), i);
(void)hv_store(h, owl_pair_get_key(pair), strlen(owl_pair_get_key(pair)),
owl_new_sv(owl_pair_get_value(pair)),0);
}
MSG2H(h, type);
MSG2H(h, direction);
MSG2H(h, class);
MSG2H(h, instance);
MSG2H(h, sender);
MSG2H(h, realm);
MSG2H(h, recipient);
MSG2H(h, opcode);
MSG2H(h, hostname);
MSG2H(h, body);
MSG2H(h, login);
MSG2H(h, zsig);
MSG2H(h, zwriteline);
if (owl_message_get_header(m)) {
MSG2H(h, header);
}
(void)hv_store(h, "time", strlen("time"), owl_new_sv(owl_message_get_timestr(m)),0);
(void)hv_store(h, "unix_time", strlen("unix_time"), newSViv(m->time), 0);
(void)hv_store(h, "id", strlen("id"), newSViv(owl_message_get_id(m)),0);
(void)hv_store(h, "deleted", strlen("deleted"), newSViv(owl_message_is_delete(m)),0);
(void)hv_store(h, "private", strlen("private"), newSViv(owl_message_is_private(m)),0);
(void)hv_store(h, "should_wordwrap",
strlen("should_wordwrap"), newSViv(
owl_filter_message_match(wrap, m)),0);
type = owl_message_get_type(m);
if(!type || !*type) type = "generic";
utype = g_strdup(type);
utype[0] = toupper(type[0]);
blessas = g_strdup_printf("BarnOwl::Message::%s", utype);
hr = newRV_noinc((SV*)h);
stash = gv_stashpv(blessas,0);
if(!stash) {
owl_function_error("No such class: %s for message type %s", blessas, owl_message_get_type(m));
stash = gv_stashpv("BarnOwl::Message", 1);
}
hr = sv_bless(hr,stash);
g_free(utype);
g_free(blessas);
return hr;
}
SV *owl_perlconfig_curmessage2hashref(void)
{
int curmsg;
const owl_view *v;
v=owl_global_get_current_view(&g);
if (owl_view_get_size(v) < 1) {
return &PL_sv_undef;
}
curmsg=owl_global_get_curmsg(&g);
return owl_perlconfig_message2hashref(owl_view_get_element(v, curmsg));
}
/* XXX TODO: Messages should round-trip properly between
message2hashref and hashref2message. Currently we lose
zephyr-specific properties stored in the ZNotice_t
This has been somewhat addressed, but is still not lossless.
*/
owl_message * owl_perlconfig_hashref2message(SV *msg)
{
owl_message * m;
HE * ent;
I32 len;
const char *key,*val;
HV * hash;
struct tm tm;
hash = (HV*)SvRV(msg);
m = g_new(owl_message, 1);
owl_message_init(m);
hv_iterinit(hash);
while((ent = hv_iternext(hash))) {
key = hv_iterkey(ent, &len);
val = SvPV_nolen(hv_iterval(hash, ent));
if(!strcmp(key, "type")) {
owl_message_set_type(m, val);
} else if(!strcmp(key, "direction")) {
owl_message_set_direction(m, owl_message_parse_direction(val));
} else if(!strcmp(key, "private")) {
SV * v = hv_iterval(hash, ent);
if(SvTRUE(v)) {
owl_message_set_isprivate(m);
}
} else if (!strcmp(key, "hostname")) {
owl_message_set_hostname(m, val);
} else if (!strcmp(key, "zwriteline")) {
owl_message_set_zwriteline(m, val);
} else if (!strcmp(key, "time")) {
m->timestr = g_strdup(val);
strptime(val, "%a %b %d %T %Y", &tm);
m->time = mktime(&tm);
} else {
owl_message_set_attribute(m, key, val);
}
}
if(owl_message_is_type_admin(m)) {
if(!owl_message_get_attribute_value(m, "adminheader"))
owl_message_set_attribute(m, "adminheader", "");
}
#ifdef HAVE_LIBZEPHYR
if (owl_message_is_type_zephyr(m)) {
ZNotice_t *n = &(m->notice);
n->z_kind = ACKED;
n->z_port = 0;
n->z_auth = ZAUTH_NO;
n->z_checked_auth = 0;
n->z_class = zstr(owl_message_get_class(m));
n->z_class_inst = zstr(owl_message_get_instance(m));
n->z_opcode = zstr(owl_message_get_opcode(m));
n->z_sender = zstr(owl_message_get_sender(m));
n->z_recipient = zstr(owl_message_get_recipient(m));
n->z_default_format = zstr("[zephyr created from perl]");
n->z_multinotice = zstr("[zephyr created from perl]");
n->z_num_other_fields = 0;
n->z_message = g_strdup_printf("%s%c%s", owl_message_get_zsig(m), '\0', owl_message_get_body(m));
n->z_message_len = strlen(owl_message_get_zsig(m)) + strlen(owl_message_get_body(m)) + 1;
}
#endif
return m;
}
/* Calls in a scalar context, passing it a hash reference.
If return value is non-null, caller must free. */
char *owl_perlconfig_call_with_message(const char *subname, const owl_message *m)
{
dSP ;
int count;
SV *msgref, *srv;
char *out;
ENTER ;
SAVETMPS;
PUSHMARK(SP) ;
msgref = owl_perlconfig_message2hashref(m);
XPUSHs(sv_2mortal(msgref));
PUTBACK ;
count = call_pv(subname, G_SCALAR|G_EVAL);
SPAGAIN ;
if (SvTRUE(ERRSV)) {
owl_function_error("Perl Error: '%s'", SvPV_nolen(ERRSV));
/* and clear the error */
sv_setsv (ERRSV, &PL_sv_undef);
}
if (count != 1) {
fprintf(stderr, "bad perl! no biscuit! returned wrong count!\n");
abort();
}
srv = POPs;
if (srv) {
out = g_strdup(SvPV_nolen(srv));
} else {
out = NULL;
}
PUTBACK ;
FREETMPS ;
LEAVE ;
return out;
}
/* Calls a method on a perl object representing a message.
If the return value is non-null, the caller must free it.
*/
char * owl_perlconfig_message_call_method(const owl_message *m, const char *method, int argc, const char ** argv)
{
dSP;
unsigned int count, i;
SV *msgref, *srv;
char *out;
msgref = owl_perlconfig_message2hashref(m);
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(msgref));
for(i=0;i<argc;i++) {
XPUSHs(sv_2mortal(owl_new_sv(argv[i])));
}
PUTBACK;
count = call_method(method, G_SCALAR|G_EVAL);
SPAGAIN;
if(count != 1) {
fprintf(stderr, "perl returned wrong count %u\n", count);
abort();
}
if (SvTRUE(ERRSV)) {
owl_function_error("Error: '%s'", SvPV_nolen(ERRSV));
/* and clear the error */
sv_setsv (ERRSV, &PL_sv_undef);
}
srv = POPs;
if (srv) {
out = g_strdup(SvPV_nolen(srv));
} else {
out = NULL;
}
PUTBACK;
FREETMPS;
LEAVE;
return out;
}
char *owl_perlconfig_initperl(const char * file, int *Pargc, char ***Pargv, char *** Penv)
{
int ret;
PerlInterpreter *p;
char *err;
const char *args[4] = {"", "-e", "0;", NULL};
AV *inc;
char *path;
/* create and initialize interpreter */
PERL_SYS_INIT3(Pargc, Pargv, Penv);
p=perl_alloc();
owl_global_set_perlinterp(&g, p);
perl_construct(p);
PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
owl_global_set_no_have_config(&g);
ret=perl_parse(p, owl_perl_xs_init, 2, (char **)args, NULL);
if (ret || SvTRUE(ERRSV)) {
err=g_strdup(SvPV_nolen(ERRSV));
sv_setsv(ERRSV, &PL_sv_undef); /* and clear the error */
return(err);
}
ret=perl_run(p);
if (ret || SvTRUE(ERRSV)) {
err=g_strdup(SvPV_nolen(ERRSV));
sv_setsv(ERRSV, &PL_sv_undef); /* and clear the error */
return(err);
}
owl_global_set_have_config(&g);
/* create legacy variables */
get_sv("BarnOwl::id", TRUE);
get_sv("BarnOwl::class", TRUE);
get_sv("BarnOwl::instance", TRUE);
get_sv("BarnOwl::recipient", TRUE);
get_sv("BarnOwl::sender", TRUE);
get_sv("BarnOwl::realm", TRUE);
get_sv("BarnOwl::opcode", TRUE);
get_sv("BarnOwl::zsig", TRUE);
get_sv("BarnOwl::msg", TRUE);
get_sv("BarnOwl::time", TRUE);
get_sv("BarnOwl::host", TRUE);
get_av("BarnOwl::fields", TRUE);
if(file) {
SV * cfg = get_sv("BarnOwl::configfile", TRUE);
sv_setpv(cfg, file);
}
/* Add the system lib path to @INC */
inc = get_av("INC", 0);
path = g_strdup_printf("%s/lib", owl_get_datadir());
av_unshift(inc, 1);
av_store(inc, 0, owl_new_sv(path));
g_free(path);
eval_pv("use BarnOwl;", FALSE);
if (SvTRUE(ERRSV)) {
err=g_strdup(SvPV_nolen(ERRSV));
sv_setsv (ERRSV, &PL_sv_undef); /* and clear the error */
return(err);
}
/* check if we have the formatting function */
if (owl_perlconfig_is_function("BarnOwl::format_msg")) {
owl_global_set_config_format(&g, 1);
}
return(NULL);
}
/* returns whether or not a function exists */
int owl_perlconfig_is_function(const char *fn) {
if (get_cv(fn, FALSE)) return(1);
else return(0);
}
/* caller is responsible for freeing returned string */
char *owl_perlconfig_execute(const char *line)
{
STRLEN len;
SV *response;
char *out;
if (!owl_global_have_config(&g)) return NULL;
ENTER;
SAVETMPS;
/* execute the subroutine */
response = eval_pv(line, FALSE);
if (SvTRUE(ERRSV)) {
owl_function_error("Perl Error: '%s'", SvPV_nolen(ERRSV));
sv_setsv (ERRSV, &PL_sv_undef); /* and clear the error */
}
out = g_strdup(SvPV(response, len));
FREETMPS;
LEAVE;
return(out);
}
void owl_perlconfig_getmsg(const owl_message *m, const char *subname)
{
char *ptr = NULL;
if (owl_perlconfig_is_function("BarnOwl::Hooks::_receive_msg")) {
ptr = owl_perlconfig_call_with_message(subname?subname
:"BarnOwl::_receive_msg_legacy_wrap", m);
}
if (ptr) g_free(ptr);
}
/* Called on all new messages; receivemsg is only called on incoming ones */
void owl_perlconfig_newmsg(const owl_message *m, const char *subname)
{
char *ptr = NULL;
if (owl_perlconfig_is_function("BarnOwl::Hooks::_new_msg")) {
ptr = owl_perlconfig_call_with_message(subname?subname
:"BarnOwl::Hooks::_new_msg", m);
}
if (ptr) g_free(ptr);
}
void owl_perlconfig_new_command(const char *name)
{
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(owl_new_sv(name)));
PUTBACK;
call_pv("BarnOwl::Hooks::_new_command", G_SCALAR|G_VOID|G_EVAL);
SPAGAIN;
if(SvTRUE(ERRSV)) {
owl_function_error("%s", SvPV_nolen(ERRSV));
}
FREETMPS;
LEAVE;
}
char *owl_perlconfig_perlcmd(const owl_cmd *cmd, int argc, const char *const *argv)
{
int i, count;
char * ret = NULL;
SV *rv;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
for(i=0;i<argc;i++) {
XPUSHs(sv_2mortal(owl_new_sv(argv[i])));
}
PUTBACK;
count = call_sv(cmd->cmd_perl, G_SCALAR|G_EVAL);
SPAGAIN;
if(SvTRUE(ERRSV)) {
owl_function_error("%s", SvPV_nolen(ERRSV));
(void)POPs;
} else {
if(count != 1)
croak("Perl command %s returned more than one value!", cmd->name);
rv = POPs;
if(SvTRUE(rv)) {
ret = g_strdup(SvPV_nolen(rv));
}
}
FREETMPS;
LEAVE;
return ret;
}
void owl_perlconfig_cmd_cleanup(owl_cmd *cmd)
{
SvREFCNT_dec(cmd->cmd_perl);
}
void owl_perlconfig_io_dispatch_destroy(const owl_io_dispatch *d)
{
SvREFCNT_dec(d->data);
}
void owl_perlconfig_edit_callback(owl_editwin *e)
{
SV *cb = owl_editwin_get_cbdata(e);
SV *text;
dSP;
if(cb == NULL) {
owl_function_error("Perl callback is NULL!");
return;
}
text = owl_new_sv(owl_editwin_get_text(e));
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(text));
PUTBACK;
call_sv(cb, G_DISCARD|G_EVAL);
if(SvTRUE(ERRSV)) {
owl_function_error("%s", SvPV_nolen(ERRSV));
}
FREETMPS;
LEAVE;
}
void owl_perlconfig_dec_refcnt(void *data)
{
SV *v = data;
SvREFCNT_dec(v);
}
void owl_perlconfig_io_dispatch(const owl_io_dispatch *d, void *data)
{
SV *cb = data;
dSP;
if(cb == NULL) {
owl_function_error("Perl callback is NULL!");
return;
}
ENTER;
SAVETMPS;
PUSHMARK(SP);
PUTBACK;
call_sv(cb, G_DISCARD|G_EVAL);
if(SvTRUE(ERRSV)) {
owl_function_error("%s", SvPV_nolen(ERRSV));
}
FREETMPS;
LEAVE;
}
void owl_perlconfig_perl_timer(owl_timer *t, void *data)
{
dSP;
SV *obj = data;
if(!SvROK(obj)) {
return;
}
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(obj);
PUTBACK;
call_method("do_callback", G_DISCARD|G_EVAL);
SPAGAIN;
if (SvTRUE(ERRSV)) {
owl_function_error("Error in callback: '%s'", SvPV_nolen(ERRSV));
sv_setsv (ERRSV, &PL_sv_undef);
}
PUTBACK;
FREETMPS;
LEAVE;
}
void owl_perlconfig_perl_timer_destroy(owl_timer *t)
{
if(SvOK((SV*)t->data)) {
SvREFCNT_dec((SV*)t->data);
}
}