/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "mod_perl.h"
int modperl_require_module(pTHX_ const char *pv, int logfailure)
{
SV *sv;
dSP;
PUSHSTACKi(PERLSI_REQUIRE);
ENTER;SAVETMPS;
PUTBACK;
sv = sv_newmortal();
sv_setpv(sv, "require ");
sv_catpv(sv, pv);
eval_sv(sv, G_DISCARD);
SPAGAIN;
POPSTACK;
FREETMPS;LEAVE;
if (SvTRUE(ERRSV)) {
if (logfailure) {
(void)modperl_errsv(aTHX_ HTTP_INTERNAL_SERVER_ERROR,
NULL, NULL);
}
return FALSE;
}
return TRUE;
}
int modperl_require_file(pTHX_ const char *pv, int logfailure)
{
require_pv(pv);
if (SvTRUE(ERRSV)) {
if (logfailure) {
(void)modperl_errsv(aTHX_ HTTP_INTERNAL_SERVER_ERROR,
NULL, NULL);
}
return FALSE;
}
return TRUE;
}
static SV *modperl_hv_request_find(pTHX_ SV *in, char *classname, CV *cv)
{
static char *r_keys[] = { "r", "_r", NULL };
HV *hv = (HV *)SvRV(in);
SV *sv = (SV *)NULL;
int i;
for (i=0; r_keys[i]; i++) {
int klen = i + 1; /* assumes r_keys[] will never change */
SV **svp;
if ((svp = hv_fetch(hv, r_keys[i], klen, FALSE)) && (sv = *svp)) {
if (SvROK(sv) && (SvTYPE(SvRV(sv)) == SVt_PVHV)) {
/* dig deeper */
return modperl_hv_request_find(aTHX_ sv, classname, cv);
}
break;
}
}
if (!sv) {
Perl_croak(aTHX_
"method `%s' invoked by a `%s' object with no `r' key!",
cv ? GvNAME(CvGV(cv)) : "unknown",
(SvRV(in) && SvSTASH(SvRV(in)))
? HvNAME(SvSTASH(SvRV(in)))
: "unknown");
}
return SvROK(sv) ? SvRV(sv) : sv;
}
/* notice that if sv is not an Apache2::ServerRec object and
* Apache2->request is not available, the returned global object might
* be not thread-safe under threaded mpms, so use with care
*/
MP_INLINE server_rec *modperl_sv2server_rec(pTHX_ SV *sv)
{
if (SvOBJECT(sv) || (SvROK(sv) && (SvTYPE(SvRV(sv)) == SVt_PVMG))) {
return INT2PTR(server_rec *, SvObjIV(sv));
}
/* next see if we have Apache2->request available */
{
request_rec *r = NULL;
(void)modperl_tls_get_request_rec(&r);
if (r) {
return r->server;
}
}
/* modperl_global_get_server_rec is not thread safe w/o locking */
return modperl_global_get_server_rec();
}
MP_INLINE request_rec *modperl_sv2request_rec(pTHX_ SV *sv)
{
return modperl_xs_sv2request_rec(aTHX_ sv, NULL, (CV *)NULL);
}
request_rec *modperl_xs_sv2request_rec(pTHX_ SV *in, char *classname, CV *cv)
{
SV *sv = (SV *)NULL;
MAGIC *mg;
if (SvROK(in)) {
SV *rv = (SV*)SvRV(in);
switch (SvTYPE(rv)) {
case SVt_PVMG:
sv = rv;
break;
case SVt_PVHV:
sv = modperl_hv_request_find(aTHX_ in, classname, cv);
break;
default:
Perl_croak(aTHX_ "panic: unsupported request_rec type %d",
(int)SvTYPE(rv));
}
}
/* might be Apache2::ServerRec::warn method */
if (!sv && !(classname && SvPOK(in) && !strEQ(classname, SvPVX(in)))) {
request_rec *r = NULL;
(void)modperl_tls_get_request_rec(&r);
if (!r) {
Perl_croak(aTHX_
"Apache2->%s called without setting Apache2->request!",
cv ? GvNAME(CvGV(cv)) : "unknown");
}
return r;
}
/* there could be pool magic attached to custom $r object, so make
* sure that mg->mg_ptr is set */
if ((mg = mg_find(sv, PERL_MAGIC_ext)) && mg->mg_ptr) {
return (request_rec *)mg->mg_ptr;
}
else {
if (classname && !sv_derived_from(in, classname)) {
/* XXX: find something faster than sv_derived_from */
return NULL;
}
return INT2PTR(request_rec *, SvIV(sv));
}
return NULL;
}
MP_INLINE SV *modperl_newSVsv_obj(pTHX_ SV *stashsv, SV *obj)
{
SV *newobj;
if (!obj) {
obj = stashsv;
stashsv = (SV *)NULL;
}
newobj = newSVsv(obj);
if (stashsv) {
HV *stash = gv_stashsv(stashsv, TRUE);
return sv_bless(newobj, stash);
}
return newobj;
}
MP_INLINE SV *modperl_ptr2obj(pTHX_ char *classname, void *ptr)
{
SV *sv = newSV(0);
MP_TRACE_h(MP_FUNC, "sv_setref_pv(%s, 0x%lx)",
classname, (unsigned long)ptr);
sv_setref_pv(sv, classname, ptr);
return sv;
}
int modperl_errsv(pTHX_ int status, request_rec *r, server_rec *s)
{
SV *sv = ERRSV;
STRLEN n_a;
if (SvTRUE(sv)) {
if (sv_derived_from(sv, "APR::Error") &&
SvIVx(sv) == MODPERL_RC_EXIT) {
/* ModPerl::Util::exit was called */
return OK;
}
#if 0
if (modperl_sv_is_http_code(ERRSV, &status)) {
return status;
}
#endif
if (r) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "%s", SvPV(sv, n_a));
}
else {
ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, "%s", SvPV(sv, n_a));
}
return status;
}
return status;
}
/* prepends the passed sprintf-like arguments to ERRSV, which also
* gets stringified on the way */
void modperl_errsv_prepend(pTHX_ const char *pat, ...)
{
SV *sv;
va_list args;
va_start(args, pat);
sv = vnewSVpvf(pat, &args);
va_end(args);
sv_catsv(sv, ERRSV);
sv_copypv(ERRSV, sv);
sv_free(sv);
}
#define dl_librefs "DynaLoader::dl_librefs"
#define dl_modules "DynaLoader::dl_modules"
void modperl_xs_dl_handles_clear(pTHX)
{
AV *librefs = get_av(dl_librefs, FALSE);
if (librefs) {
av_clear(librefs);
}
}
void **modperl_xs_dl_handles_get(pTHX)
{
I32 i;
AV *librefs = get_av(dl_librefs, FALSE);
AV *modules = get_av(dl_modules, FALSE);
void **handles;
if (!librefs) {
MP_TRACE_r(MP_FUNC,
"Could not get @%s for unloading.",
dl_librefs);
return NULL;
}
if (!(AvFILL(librefs) >= 0)) {
/* dl_librefs and dl_modules are empty */
return NULL;
}
handles = (void **)malloc(sizeof(void *) * (AvFILL(librefs)+2));
for (i=0; i<=AvFILL(librefs); i++) {
void *handle;
SV *handle_sv = *av_fetch(librefs, i, FALSE);
SV *module_sv = *av_fetch(modules, i, FALSE);
if(!handle_sv) {
MP_TRACE_r(MP_FUNC,
"Could not fetch $%s[%d]!",
dl_librefs, (int)i);
continue;
}
handle = INT2PTR(void *, SvIV(handle_sv));
MP_TRACE_r(MP_FUNC, "%s dl handle == 0x%lx",
SvPVX(module_sv), (unsigned long)handle);
if (handle) {
handles[i] = handle;
}
}
av_clear(modules);
av_clear(librefs);
handles[i] = (void *)0;
return handles;
}
void modperl_xs_dl_handles_close(void **handles)
{
int i;
if (!handles) {
return;
}
for (i=0; handles[i]; i++) {
MP_TRACE_r(MP_FUNC, "close 0x%lx", (unsigned long)handles[i]);
modperl_sys_dlclose(handles[i]);
}
free(handles);
}
/* XXX: There is no XS accessible splice() */
static void modperl_av_remove_entry(pTHX_ AV *av, I32 index)
{
I32 i;
AV *tmpav = newAV();
/* stash the entries _before_ the item to delete */
for (i=0; i<=index; i++) {
av_store(tmpav, i, SvREFCNT_inc(av_shift(av)));
}
/* make size at the beginning of the array */
av_unshift(av, index-1);
/* add stashed entries back */
for (i=0; i<index; i++) {
av_store(av, i, *av_fetch(tmpav, i, 0));
}
sv_free((SV *)tmpav);
}
static void modperl_package_unload_dynamic(pTHX_ const char *package,
I32 dl_index)
{
AV *librefs = get_av(dl_librefs, 0);
SV *libref = *av_fetch(librefs, dl_index, 0);
modperl_sys_dlclose(INT2PTR(void *, SvIV(libref)));
/* remove package from @dl_librefs and @dl_modules */
modperl_av_remove_entry(aTHX_ get_av(dl_librefs, 0), dl_index);
modperl_av_remove_entry(aTHX_ get_av(dl_modules, 0), dl_index);
return;
}
static int modperl_package_is_dynamic(pTHX_ const char *package,
I32 *dl_index)
{
I32 i;
AV *modules = get_av(dl_modules, FALSE);
for (i=0; i<av_len(modules); i++) {
SV *module = *av_fetch(modules, i, 0);
if (strEQ(package, SvPVX(module))) {
*dl_index = i;
return TRUE;
}
}
return FALSE;
}
modperl_cleanup_data_t *modperl_cleanup_data_new(apr_pool_t *p, void *data)
{
modperl_cleanup_data_t *cdata =
(modperl_cleanup_data_t *)apr_pcalloc(p, sizeof(*cdata));
cdata->pool = p;
cdata->data = data;
return cdata;
}
MP_INLINE void modperl_perl_av_push_elts_ref(pTHX_ AV *dst, AV *src)
{
I32 i, j, src_fill = AvFILLp(src), dst_fill = AvFILLp(dst);
av_extend(dst, src_fill);
AvFILLp(dst) += src_fill+1;
for (i=dst_fill+1, j=0; j<=AvFILLp(src); i++, j++) {
AvARRAY(dst)[i] = SvREFCNT_inc(AvARRAY(src)[j]);
}
}
/*
* similar to hv_fetch_ent, but takes string key and key len rather than SV
* also skips magic and utf8 fu, since we are only dealing with internal tables
*/
HE *modperl_perl_hv_fetch_he(pTHX_ HV *hv,
register char *key,
register I32 klen,
register U32 hash)
{
register XPVHV *xhv;
register HE *entry;
xhv = (XPVHV *)SvANY(hv);
if (!HvARRAY(hv)) {
return 0;
}
#ifdef HvREHASH
if (HvREHASH(hv)) {
PERL_HASH_INTERNAL(hash, key, klen);
}
else
#endif
if (!hash) {
PERL_HASH(hash, key, klen);
}
entry = ((HE**)HvARRAY(hv))[hash & (I32)xhv->xhv_max];
for (; entry; entry = HeNEXT(entry)) {
if (HeHASH(entry) != hash) {
continue;
}
if (HeKLEN(entry) != klen) {
continue;
}
if (HeKEY(entry) != key && memNE(HeKEY(entry), key, klen)) {
continue;
}
return entry;
}
return 0;
}
void modperl_str_toupper(char *str)
{
while (*str) {
*str = apr_toupper(*str);
++str;
}
}
/* XXX: same as Perl_do_sprintf();
* but Perl_do_sprintf() is not part of the "public" api
*/
void modperl_perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
{
STRLEN patlen;
char *pat = SvPV(*sarg, patlen);
bool do_taint = FALSE;
sv_vsetpvfn(sv, pat, patlen, (va_list *)NULL, sarg + 1, len - 1, &do_taint);
SvSETMAGIC(sv);
if (do_taint) {
SvTAINTED_on(sv);
}
}
void modperl_perl_call_list(pTHX_ AV *subs, const char *name)
{
I32 i, oldscope = PL_scopestack_ix;
SV **ary = AvARRAY(subs);
MP_TRACE_g(MP_FUNC, MP_TRACEf_PERLID
" running %d %s subs", MP_TRACEv_PERLID_
AvFILLp(subs)+1, name);
for (i=0; i<=AvFILLp(subs); i++) {
CV *cv = (CV*)ary[i];
SV *atsv = ERRSV;
PUSHMARK(PL_stack_sp);
call_sv((SV*)cv, G_EVAL|G_DISCARD);
if (SvCUR(atsv)) {
Perl_sv_catpvf(aTHX_ atsv, "%s failed--call queue aborted",
name);
while (PL_scopestack_ix > oldscope) {
LEAVE;
}
Perl_croak(aTHX_ "%s", SvPVX(atsv));
}
}
}
void modperl_perl_exit(pTHX_ int status)
{
ENTER;
SAVESPTR(PL_diehook);
PL_diehook = (SV *)NULL;
modperl_croak(aTHX_ MODPERL_RC_EXIT, "ModPerl::Util::exit");
}
MP_INLINE SV *modperl_dir_config(pTHX_ request_rec *r, server_rec *s,
char *key, SV *sv_val)
{
SV *retval = &PL_sv_undef;
if (r && r->per_dir_config) {
MP_dDCFG;
retval = modperl_table_get_set(aTHX_ dcfg->configvars,
key, sv_val, FALSE);
}
if (!SvOK(retval)) {
if (s && s->module_config) {
MP_dSCFG(s);
SvREFCNT_dec(retval); /* in case above did newSV(0) */
retval = modperl_table_get_set(aTHX_ scfg->configvars,
key, sv_val, FALSE);
}
else {
retval = &PL_sv_undef;
}
}
return retval;
}
SV *modperl_table_get_set(pTHX_ apr_table_t *table, char *key,
SV *sv_val, int do_taint)
{
SV *retval = &PL_sv_undef;
if (table == NULL) {
/* do nothing */
}
else if (key == NULL) {
retval = modperl_hash_tie(aTHX_ "APR::Table",
(SV *)NULL, (void*)table);
}
else if (!sv_val) { /* no val was passed */
char *val;
if ((val = (char *)apr_table_get(table, key))) {
retval = newSVpv(val, 0);
}
else {
retval = newSV(0);
}
if (do_taint) {
SvTAINTED_on(retval);
}
}
else if (!SvOK(sv_val)) { /* val was passed in as undef */
apr_table_unset(table, key);
}
else {
apr_table_set(table, key, SvPV_nolen(sv_val));
}
return retval;
}
static char *package2filename(const char *package, int *len)
{
const char *s;
char *d;
char *filename;
filename = malloc((strlen(package)+4)*sizeof(char));
for (s = package, d = filename; *s; s++, d++) {
if (*s == ':' && s[1] == ':') {
*d = '/';
s++;
}
else {
*d = *s;
}
}
*d++ = '.';
*d++ = 'p';
*d++ = 'm';
*d = '\0';
*len = d - filename;
return filename;
}
MP_INLINE int modperl_perl_module_loaded(pTHX_ const char *name)
{
SV **svp;
int len;
char *filename = package2filename(name, &len);
svp = hv_fetch(GvHVn(PL_incgv), filename, len, 0);
free(filename);
return (svp && *svp != &PL_sv_undef) ? 1 : 0;
}
#define SLURP_SUCCESS(action) \
if (rc != APR_SUCCESS) { \
SvREFCNT_dec(sv); \
modperl_croak(aTHX_ rc, \
apr_psprintf(r->pool, \
"slurp_filename('%s') / " action, \
r->filename)); \
}
MP_INLINE SV *modperl_slurp_filename(pTHX_ request_rec *r, int tainted)
{
SV *sv;
apr_status_t rc;
apr_size_t size;
apr_file_t *file;
size = r->finfo.size;
sv = newSV(size);
/* XXX: could have checked whether r->finfo.filehand is valid and
* save the apr_file_open call, but apache gives us no API to
* check whether filehand is valid. we can't test whether it's
* NULL or not, as it may contain garbagea
*/
rc = apr_file_open(&file, r->filename, APR_READ|APR_BINARY,
APR_OS_DEFAULT, r->pool);
SLURP_SUCCESS("opening");
rc = apr_file_read(file, SvPVX(sv), &size);
SLURP_SUCCESS("reading");
MP_TRACE_o(MP_FUNC, "read %d bytes from '%s'", size, r->filename);
if (r->finfo.size != size) {
SvREFCNT_dec(sv);
Perl_croak(aTHX_ "Error: read %d bytes, expected %d ('%s')",
size, (apr_size_t)r->finfo.size, r->filename);
}
rc = apr_file_close(file);
SLURP_SUCCESS("closing");
SvPVX(sv)[size] = '\0';
SvCUR_set(sv, size);
SvPOK_on(sv);
if (tainted) {
SvTAINTED_on(sv);
}
else {
SvTAINTED_off(sv);
}
return newRV_noinc(sv);
}
#define MP_VALID_PKG_CHAR(c) (isalnum(c) ||(c) == '_')
#define MP_VALID_PATH_DELIM(c) ((c) == '/' || (c) =='\\')
char *modperl_file2package(apr_pool_t *p, const char *file)
{
char *package;
char *c;
const char *f;
int len = strlen(file)+1;
/* First, skip invalid prefix characters */
while (!MP_VALID_PKG_CHAR(*file)) {
file++;
len--;
}
/* Then figure out how big the package name will be like */
for (f = file; *f; f++) {
if (MP_VALID_PATH_DELIM(*f)) {
len++;
}
}
package = apr_pcalloc(p, len);
/* Then, replace bad characters with '_' */
for (c = package; *file; c++, file++) {
if (MP_VALID_PKG_CHAR(*file)) {
*c = *file;
}
else if (MP_VALID_PATH_DELIM(*file)) {
/* Eliminate subsequent duplicate path delim */
while (*(file+1) && MP_VALID_PATH_DELIM(*(file+1))) {
file++;
}
/* path delim not until end of line */
if (*(file+1)) {
*c = *(c+1) = ':';
c++;
}
}
else {
*c = '_';
}
}
return package;
}
SV *modperl_apr_array_header2avrv(pTHX_ apr_array_header_t *array)
{
AV *av = newAV();
if (array) {
int i;
for (i = 0; i < array->nelts; i++) {
av_push(av, newSVpv(((char **)array->elts)[i], 0));
}
}
return newRV_noinc((SV*)av);
}
apr_array_header_t *modperl_avrv2apr_array_header(pTHX_ apr_pool_t *p,
SV *avrv)
{
AV *av;
apr_array_header_t *array;
int i, av_size;
if (!(SvROK(avrv) && (SvTYPE(SvRV(avrv)) == SVt_PVAV))) {
Perl_croak(aTHX_ "Not an array reference");
}
av = (AV*)SvRV(avrv);
av_size = av_len(av);
array = apr_array_make(p, av_size+1, sizeof(char *));
for (i = 0; i <= av_size; i++) {
SV *sv = *av_fetch(av, i, FALSE);
char **entry = (char **)apr_array_push(array);
*entry = apr_pstrdup(p, SvPV_nolen(sv));
}
return array;
}
/* Remove a package from %INC */
static void modperl_package_delete_from_inc(pTHX_ const char *package)
{
int len;
char *filename = package2filename(package, &len);
(void)hv_delete(GvHVn(PL_incgv), filename, len, G_DISCARD);
free(filename);
}
/* Destroy a package's stash */
#define MP_STASH_SUBSTASH(key, len) ((len >= 2) && \
(key[len-1] == ':') && \
(key[len-2] == ':'))
#define MP_STASH_DEBUGGER(key, len) ((len >= 2) && \
(key[0] == '_') && \
(key[1] == '<'))
#define MP_SAFE_STASH(key, len) (!(MP_STASH_SUBSTASH(key,len)|| \
(MP_STASH_DEBUGGER(key, len))))
static void modperl_package_clear_stash(pTHX_ const char *package)
{
HV *stash;
if ((stash = gv_stashpv(package, FALSE))) {
HE *he;
I32 len;
char *key;
hv_iterinit(stash);
while ((he = hv_iternext(stash))) {
key = hv_iterkey(he, &len);
if (MP_SAFE_STASH(key, len)) {
SV *val = hv_iterval(stash, he);
/* The safe thing to do is to skip over stash entries
* that don't come from the package we are trying to
* unload
*/
if (GvSTASH(val) == stash) {
(void)hv_delete(stash, key, len, G_DISCARD);
}
}
}
}
}
/* Unload a module as completely and cleanly as possible */
void modperl_package_unload(pTHX_ const char *package)
{
I32 dl_index;
modperl_package_clear_stash(aTHX_ package);
modperl_package_delete_from_inc(aTHX_ package);
if (modperl_package_is_dynamic(aTHX_ package, &dl_index)) {
modperl_package_unload_dynamic(aTHX_ package, dl_index);
}
}
#define MP_RESTART_COUNT_KEY "mod_perl_restart_count"
/* passing the main server object here, just because we don't have the
* modperl_server_pool available yet, later on we can access it
* through the modperl_server_pool() call.
*/
void modperl_restart_count_inc(server_rec *base_server)
{
void *data;
int *counter;
apr_pool_t *p = base_server->process->pool;
apr_pool_userdata_get(&data, MP_RESTART_COUNT_KEY, p);
if (data) {
counter = data;
(*counter)++;
}
else {
counter = apr_palloc(p, sizeof *counter);
*counter = 1;
apr_pool_userdata_set(counter, MP_RESTART_COUNT_KEY,
apr_pool_cleanup_null, p);
}
}
int modperl_restart_count(void)
{
void *data;
apr_pool_userdata_get(&data, MP_RESTART_COUNT_KEY,
modperl_global_get_server_rec()->process->pool);
return data ? *(int *)data : 0;
}
static MP_INLINE
apr_status_t modperl_cleanup_pnotes(void *data) {
modperl_pnotes_t *pnotes = data;
dTHXa(pnotes->interp->perl);
MP_ASSERT_CONTEXT(aTHX);
SvREFCNT_dec(pnotes->pnotes);
pnotes->pnotes = NULL;
pnotes->pool = NULL;
MP_INTERP_PUTBACK(pnotes->interp, aTHX);
return APR_SUCCESS;
}
void modperl_pnotes_kill(void *data) {
modperl_pnotes_t *pnotes = data;
if( !pnotes->pnotes ) return;
apr_pool_cleanup_kill(pnotes->pool, pnotes, modperl_cleanup_pnotes);
modperl_cleanup_pnotes(pnotes);
}
SV *modperl_pnotes(pTHX_ modperl_pnotes_t *pnotes, SV *key, SV *val,
apr_pool_t *pool) {
SV *retval = (SV *)NULL;
if (!pnotes->pnotes) {
pnotes->pool = pool;
#ifdef USE_ITHREADS
pnotes->interp = modperl_thx_interp_get(aTHX);
pnotes->interp->refcnt++;
MP_TRACE_i(MP_FUNC, "TO: (0x%lx)->refcnt incremented to %ld",
pnotes->interp, pnotes->interp->refcnt);
#endif
pnotes->pnotes = newHV();
apr_pool_cleanup_register(pool, pnotes,
modperl_cleanup_pnotes,
apr_pool_cleanup_null);
}
if (key) {
STRLEN len;
char *k = SvPV(key, len);
if (val) {
retval = *hv_store(pnotes->pnotes, k, len, SvREFCNT_inc(val), 0);
}
else if (hv_exists(pnotes->pnotes, k, len)) {
retval = *hv_fetch(pnotes->pnotes, k, len, FALSE);
}
return retval ? SvREFCNT_inc(retval) : &PL_sv_undef;
}
return newRV_inc((SV *)pnotes->pnotes);
}
U16 *modperl_code_attrs(pTHX_ CV *cv) {
MAGIC *mg;
if (!(SvMAGICAL(cv) && (mg = mg_find((SV*)cv, PERL_MAGIC_ext)))) {
sv_magic((SV*)cv, (SV *)NULL, PERL_MAGIC_ext, NULL, -1);
}
mg = mg_find((SV*)cv, PERL_MAGIC_ext);
return &(mg->mg_private);
}
#if AP_SERVER_MAJORVERSION_NUMBER>2 || \
(AP_SERVER_MAJORVERSION_NUMBER == 2 && AP_SERVER_MINORVERSION_NUMBER>=3)
static apr_hash_t *global_authz_providers = NULL;
static apr_hash_t *global_authn_providers = NULL;
typedef struct {
SV *cb1;
SV *cb2;
modperl_handler_t *cb1_handler;
modperl_handler_t *cb2_handler;
} auth_callback;
static apr_status_t cleanup_perl_global_providers(void *ctx)
{
global_authz_providers = NULL;
global_authn_providers = NULL;
return APR_SUCCESS;
}
static authz_status perl_check_authorization(request_rec *r,
const char *require_args,
const void *parsed_require_args)
{
authz_status ret = AUTHZ_DENIED;
int count;
AV *args = Nullav;
const char *key;
auth_callback *ab;
MP_dINTERPa(r, NULL, NULL);
if (global_authz_providers == NULL) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
key = apr_table_get(r->notes, AUTHZ_PROVIDER_NAME_NOTE);
ab = apr_hash_get(global_authz_providers, key, APR_HASH_KEY_STRING);
if (ab == NULL) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
if (ab->cb1 == NULL) {
if (ab->cb1_handler == NULL) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
modperl_handler_make_args(aTHX_ &args, "Apache2::RequestRec", r,
"PV", require_args, NULL);
ret = modperl_callback(aTHX_ ab->cb1_handler, r->pool, r, r->server,
args);
SvREFCNT_dec((SV*)args);
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
{
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(modperl_ptr2obj(aTHX_ "Apache2::RequestRec", r)));
XPUSHs(sv_2mortal(newSVpv(require_args, 0)));
PUTBACK;
count = call_sv(ab->cb1, G_SCALAR);
SPAGAIN;
if (count == 1) {
ret = (authz_status) POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
}
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
static const char *perl_parse_require_line(cmd_parms *cmd,
const char *require_line,
const void **parsed_require_line)
{
char *ret = NULL;
void *key;
auth_callback *ab;
if (global_authz_providers == NULL ||
apr_hash_count(global_authz_providers) == 0)
{
return NULL;
}
apr_pool_userdata_get(&key, AUTHZ_PROVIDER_NAME_NOTE, cmd->temp_pool);
ab = apr_hash_get(global_authz_providers, (char *) key, APR_HASH_KEY_STRING);
if (ab == NULL || ab->cb2 == NULL) {
return NULL;
}
{
/* PerlAddAuthzProvider currently does not support an optional second
* handler, so ab->cb2 should always be NULL above and we will never get
* here. If such support is added in the future then this code will be
* reached, but cannot succeed in the absence of an interpreter. The
* second handler would be called at init to check a Require line for
* errors, but in the current design there is no interpreter available
* at that time.
*/
MP_dINTERP_POOLa(cmd->pool, cmd->server);
if (!MP_HAS_INTERP(interp)) {
return "Require handler is not currently supported in this context";
}
{
SV *ret_sv;
int count;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(modperl_ptr2obj(aTHX_ "Apache2::CmdParms", cmd)));
XPUSHs(sv_2mortal(newSVpv(require_line, 0)));
PUTBACK;
count = call_sv(ab->cb2, G_SCALAR);
SPAGAIN;
if (count == 1) {
ret_sv = POPs;
if (SvOK(ret_sv)) {
char *tmp = SvPV_nolen(ret_sv);
if (*tmp != '\0') {
ret = apr_pstrdup(cmd->pool, tmp);
}
}
}
PUTBACK;
FREETMPS;
LEAVE;
}
MP_INTERP_PUTBACK(interp, aTHX);
}
return ret;
}
static authn_status perl_check_password(request_rec *r, const char *user,
const char *password)
{
authn_status ret = AUTH_DENIED;
int count;
AV *args = Nullav;
const char *key;
auth_callback *ab;
MP_dINTERPa(r, NULL, NULL);
if (global_authn_providers == NULL) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
key = apr_table_get(r->notes, AUTHN_PROVIDER_NAME_NOTE);
ab = apr_hash_get(global_authn_providers, key,
APR_HASH_KEY_STRING);
if (ab == NULL || ab->cb1) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
if (ab->cb1 == NULL) {
if (ab->cb1_handler == NULL) {
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
modperl_handler_make_args(aTHX_ &args, "Apache2::RequestRec", r,
"PV", user,
"PV", password, NULL);
ret = modperl_callback(aTHX_ ab->cb1_handler, r->pool, r, r->server,
args);
SvREFCNT_dec((SV*)args);
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
{
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(modperl_ptr2obj(aTHX_ "Apache2::RequestRec", r)));
XPUSHs(sv_2mortal(newSVpv(user, 0)));
XPUSHs(sv_2mortal(newSVpv(password, 0)));
PUTBACK;
count = call_sv(ab->cb1, G_SCALAR);
SPAGAIN;
if (count == 1) {
ret = (authn_status) POPi;
}
PUTBACK;
FREETMPS;
LEAVE;
}
MP_INTERP_PUTBACK(interp, aTHX);
return ret;
}
static authn_status perl_get_realm_hash(request_rec *r, const char *user,
const char *realm, char **rethash)
{
authn_status ret = AUTH_USER_NOT_FOUND;
const char *key;
auth_callback *ab;
if (global_authn_providers == NULL ||
apr_hash_count(global_authn_providers) == 0)
{
return AUTH_GENERAL_ERROR;
}
key = apr_table_get(r->notes, AUTHN_PROVIDER_NAME_NOTE);
ab = apr_hash_get(global_authn_providers, key, APR_HASH_KEY_STRING);
if (ab == NULL || ab->cb2 == NULL) {
return AUTH_GENERAL_ERROR;
}
{
/* PerlAddAuthnProvider currently does not support an optional second
* handler, so ab->cb2 should always be NULL above and we will never get
* here. If such support is added in the future then this code will be
* reached. Unlike the PerlAddAuthzProvider case, the second handler here
* would be called during request_rec processing to obtain a password hash
* for the realm so there should be no problem grabbing an interpreter.
*/
MP_dINTERPa(r, NULL, NULL);
{
SV* rh = sv_2mortal(newSVpv("", 0));
int count;
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
XPUSHs(sv_2mortal(modperl_ptr2obj(aTHX_ "Apache2::RequestRec", r)));
XPUSHs(sv_2mortal(newSVpv(user, 0)));
XPUSHs(sv_2mortal(newSVpv(realm, 0)));
XPUSHs(newRV_noinc(rh));
PUTBACK;
count = call_sv(ab->cb2, G_SCALAR);
SPAGAIN;
if (count == 1) {
const char *tmp = SvPV_nolen(rh);
ret = (authn_status) POPi;
if (*tmp != '\0') {
*rethash = apr_pstrdup(r->pool, tmp);
}
}
PUTBACK;
FREETMPS;
LEAVE;
}
MP_INTERP_PUTBACK(interp, aTHX);
}
return ret;
}
static const authz_provider authz_perl_provider = { perl_check_authorization,
perl_parse_require_line };
static const authn_provider authn_perl_provider = { perl_check_password,
perl_get_realm_hash };
static apr_status_t register_auth_provider(apr_pool_t *pool,
const char *provider_group,
const char *provider_name,
const char *provider_version,
auth_callback *ab, int type)
{
void *provider_ = NULL;
if (global_authz_providers == NULL) {
global_authz_providers = apr_hash_make(pool);
global_authn_providers = apr_hash_make(pool);
/* We have to use pre_cleanup here, otherwise this cleanup method
* would be called after another cleanup method which unloads
* mod_perl module.
*/
apr_pool_pre_cleanup_register(pool, NULL,
cleanup_perl_global_providers);
}
if (strcmp(provider_group, AUTHZ_PROVIDER_GROUP) == 0) {
provider_ = (void *) &authz_perl_provider;
apr_hash_set(global_authz_providers, provider_name,
APR_HASH_KEY_STRING, ab);
}
else {
provider_ = (void *) &authn_perl_provider;
apr_hash_set(global_authn_providers, provider_name,
APR_HASH_KEY_STRING, ab);
}
return ap_register_auth_provider(pool, provider_group, provider_name,
provider_version, provider_, type);
}
apr_status_t modperl_register_auth_provider(apr_pool_t *pool,
const char *provider_group,
const char *provider_name,
const char *provider_version,
SV *callback1, SV *callback2,
int type)
{
char *provider_name_dup;
auth_callback *ab = NULL;
provider_name_dup = apr_pstrdup(pool, provider_name);
ab = apr_pcalloc(pool, sizeof(auth_callback));
ab->cb1 = callback1;
ab->cb2 = callback2;
return register_auth_provider(pool, provider_group, provider_name_dup,
provider_version, ab, type);
}
apr_status_t modperl_register_auth_provider_name(apr_pool_t *pool,
const char *provider_group,
const char *provider_name,
const char *provider_version,
const char *callback1,
const char *callback2,
int type)
{
char *provider_name_dup;
auth_callback *ab = NULL;
provider_name_dup = apr_pstrdup(pool, provider_name);
ab = apr_pcalloc(pool, sizeof(auth_callback));
ab->cb1_handler = modperl_handler_new(pool, callback1);
if (callback2) {
ab->cb2_handler = modperl_handler_new(pool, callback2);
}
return register_auth_provider(pool, provider_group, provider_name_dup,
provider_version, ab, type);
}
#endif /* httpd-2.4 */
/*
* Local Variables:
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*/