ruby/ext/openssl/ossl_config.c

493 строки
11 KiB
C

/*
* $Id$
* 'OpenSSL for Ruby' project
* Copyright (C) 2001-2002 Michal Rokos <m.rokos@sh.cvut.cz>
* All rights reserved.
*/
/*
* This program is licenced under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
#define WrapConfig(klass, obj, conf) do { \
if (!conf) { \
ossl_raise(rb_eRuntimeError, "Config wasn't intitialized!"); \
} \
obj = Data_Wrap_Struct(klass, 0, NCONF_free, conf); \
} while (0)
#define GetConfig(obj, conf) do { \
Data_Get_Struct(obj, CONF, conf); \
if (!conf) { \
ossl_raise(rb_eRuntimeError, "Config wasn't intitialized!"); \
} \
} while (0)
#define SafeGetConfig(obj, conf) do { \
OSSL_Check_Kind(obj, cConfig); \
GetConfig(obj, conf); \
} while(0);
/*
* Classes
*/
VALUE cConfig;
VALUE eConfigError;
/*
* Public
*/
static CONF *parse_config(VALUE, CONF*);
CONF *
GetConfigPtr(VALUE obj)
{
CONF *conf;
SafeGetConfig(obj, conf);
return conf;
}
CONF *
DupConfigPtr(VALUE obj)
{
VALUE str;
OSSL_Check_Kind(obj, cConfig);
str = rb_funcall(obj, rb_intern("to_s"), 0);
return parse_config(str, NULL);
}
/*
* Private
*/
static CONF *
parse_config(VALUE str, CONF *dst)
{
CONF *conf;
BIO *bio;
long eline = -1;
bio = ossl_obj2bio(str);
conf = dst ? dst : NCONF_new(NULL);
if(!conf){
BIO_free(bio);
ossl_raise(eConfigError, NULL);
}
if(!NCONF_load_bio(conf, bio, &eline)){
BIO_free(bio);
if(!dst) NCONF_free(conf);
if (eline <= 0) ossl_raise(eConfigError, "wrong config format");
else ossl_raise(eConfigError, "error in line %d", eline);
ossl_raise(eConfigError, NULL);
}
BIO_free(bio);
return conf;
}
static VALUE
ossl_config_s_parse(VALUE klass, VALUE str)
{
CONF *conf;
VALUE obj;
conf = parse_config(str, NULL);
WrapConfig(klass, obj, conf);
return obj;
}
static VALUE
ossl_config_s_alloc(VALUE klass)
{
CONF *conf;
VALUE obj;
if(!(conf = NCONF_new(NULL)))
ossl_raise(eConfigError, NULL);
WrapConfig(klass, obj, conf);
return obj;
}
static VALUE
ossl_config_copy(VALUE self, VALUE other)
{
VALUE str;
CONF *conf;
str = rb_funcall(self, rb_intern("to_s"), 0);
GetConfig(other, conf);
parse_config(str, conf);
return self;
}
static VALUE
ossl_config_initialize(int argc, VALUE *argv, VALUE self)
{
CONF *conf;
long eline = -1;
char *filename;
VALUE path;
rb_scan_args(argc, argv, "01", &path);
if(!NIL_P(path)){
SafeStringValue(path);
filename = StringValuePtr(path);
GetConfig(self, conf);
if (!NCONF_load(conf, filename, &eline)){
if (eline <= 0)
ossl_raise(eConfigError, "wrong config file %s", filename);
else
ossl_raise(eConfigError, "error in %s:%d", filename, eline);
}
}
#ifdef OSSL_NO_CONF_API
else rb_raise(rb_eArgError, "wrong number of arguments (0 for 1)");
#else
else {
GetConfig(self, conf);
_CONF_new_data(conf);
}
#endif
return self;
}
static VALUE
ossl_config_add_value(VALUE self, VALUE section, VALUE name, VALUE value)
{
#ifdef OSSL_NO_CONF_API
rb_notimplement();
#else
CONF *conf;
CONF_VALUE *sv, *cv;
StringValue(section);
StringValue(name);
StringValue(value);
GetConfig(self, conf);
if(!(sv = _CONF_get_section(conf, RSTRING_PTR(section)))){
if(!(sv = _CONF_new_section(conf, RSTRING_PTR(section)))){
ossl_raise(eConfigError, NULL);
}
}
if(!(cv = OPENSSL_malloc(sizeof(CONF_VALUE)))){
ossl_raise(eConfigError, NULL);
}
cv->name = BUF_strdup(RSTRING_PTR(name));
cv->value = BUF_strdup(RSTRING_PTR(value));
if(!cv->name || !cv->value || !_CONF_add_string(conf, sv, cv)){
OPENSSL_free(cv->name);
OPENSSL_free(cv->value);
OPENSSL_free(cv);
ossl_raise(eConfigError, "_CONF_add_string failure");
}
return value;
#endif
}
static void
rb_ossl_config_modify_check(VALUE config)
{
if (OBJ_FROZEN(config)) rb_error_frozen("OpenSSL::Config");
if (!OBJ_UNTRUSTED(config) && rb_safe_level() >= 4)
rb_raise(rb_eSecurityError, "Insecure: can't modify OpenSSL config");
}
#if !defined(OSSL_NO_CONF_API)
static VALUE
ossl_config_add_value_m(VALUE self, VALUE section, VALUE name, VALUE value)
{
rb_ossl_config_modify_check(self);
return ossl_config_add_value(self, section, name, value);
}
#else
#define ossl_config_add_value_m rb_f_notimplement
#endif
static VALUE
ossl_config_get_value(VALUE self, VALUE section, VALUE name)
{
CONF *conf;
char *str;
StringValue(section);
StringValue(name);
GetConfig(self, conf);
str = NCONF_get_string(conf, RSTRING_PTR(section), RSTRING_PTR(name));
if(!str){
ERR_clear_error();
return Qnil;
}
return rb_str_new2(str);
}
static VALUE
ossl_config_get_value_old(int argc, VALUE *argv, VALUE self)
{
VALUE section, name;
rb_scan_args(argc, argv, "11", &section, &name);
/* support conf.value(nil, "HOME") -> conf.get_value("", "HOME") */
if (NIL_P(section)) section = rb_str_new2("");
/* support conf.value("HOME") -> conf.get_value("", "HOME") */
if (NIL_P(name)) {
name = section;
section = rb_str_new2("");
}
/* NOTE: Don't care about conf.get_value(nil, nil) */
rb_warn("Config#value is deprecated; use Config#get_value");
return ossl_config_get_value(self, section, name);
}
static VALUE
set_conf_section_i(VALUE i, VALUE *arg)
{
VALUE name, value;
Check_Type(i, T_ARRAY);
name = rb_ary_entry(i, 0);
value = rb_ary_entry(i, 1);
ossl_config_add_value(arg[0], arg[1], name, value);
return Qnil;
}
static VALUE
ossl_config_set_section(VALUE self, VALUE section, VALUE hash)
{
VALUE arg[2];
rb_ossl_config_modify_check(self);
arg[0] = self;
arg[1] = section;
rb_block_call(hash, rb_intern("each"), 0, 0, set_conf_section_i, (VALUE)arg);
return hash;
}
/*
* Get all numbers as strings - use str.to_i to convert
* long number = CONF_get_number(confp->config, sect, StringValuePtr(item));
*/
static VALUE
ossl_config_get_section(VALUE self, VALUE section)
{
CONF *conf;
STACK_OF(CONF_VALUE) *sk;
CONF_VALUE *entry;
int i, entries;
VALUE hash;
hash = rb_hash_new();
StringValue(section);
GetConfig(self, conf);
if (!(sk = NCONF_get_section(conf, StringValuePtr(section)))) {
ERR_clear_error();
return hash;
}
if ((entries = sk_CONF_VALUE_num(sk)) < 0) {
OSSL_Debug("# of items in section is < 0?!?");
return hash;
}
for (i=0; i<entries; i++) {
entry = sk_CONF_VALUE_value(sk, i);
rb_hash_aset(hash, rb_str_new2(entry->name), rb_str_new2(entry->value));
}
return hash;
}
static VALUE
ossl_config_get_section_old(VALUE self, VALUE section)
{
rb_warn("Config#section is deprecated; use Config#[]");
return ossl_config_get_section(self, section);
}
#if defined(IMPLEMENT_LHASH_DOALL_ARG_FN) && defined(LHASH_OF)
static void
get_conf_section_doall_arg(CONF_VALUE *cv, void *tmp)
{
VALUE ary = (VALUE)tmp;
if(cv->name) return;
rb_ary_push(ary, rb_str_new2(cv->section));
}
static IMPLEMENT_LHASH_DOALL_ARG_FN(get_conf_section, CONF_VALUE, void)
static VALUE
ossl_config_get_sections(VALUE self)
{
CONF *conf;
VALUE ary;
GetConfig(self, conf);
ary = rb_ary_new();
lh_doall_arg((_LHASH *)conf->data, LHASH_DOALL_ARG_FN(get_conf_section),
(void*)ary);
return ary;
}
static void
dump_conf_value_doall_arg(CONF_VALUE *cv, void *tmp)
{
VALUE str = (VALUE)tmp;
STACK_OF(CONF_VALUE) *sk;
CONF_VALUE *v;
int i, num;
if (cv->name) return;
sk = (STACK_OF(CONF_VALUE)*)cv->value;
num = sk_CONF_VALUE_num(sk);
rb_str_cat2(str, "[ ");
rb_str_cat2(str, cv->section);
rb_str_cat2(str, " ]\n");
for(i = 0; i < num; i++){
v = sk_CONF_VALUE_value(sk, i);
rb_str_cat2(str, v->name ? v->name : "None");
rb_str_cat2(str, "=");
rb_str_cat2(str, v->value ? v->value : "None");
rb_str_cat2(str, "\n");
}
rb_str_cat2(str, "\n");
}
static IMPLEMENT_LHASH_DOALL_ARG_FN(dump_conf_value, CONF_VALUE, void)
static VALUE
dump_conf(CONF *conf)
{
VALUE str;
str = rb_str_new(0, 0);
lh_doall_arg((_LHASH *)conf->data, LHASH_DOALL_ARG_FN(dump_conf_value),
(void*)str);
return str;
}
static VALUE
ossl_config_to_s(VALUE self)
{
CONF *conf;
GetConfig(self, conf);
return dump_conf(conf);
}
static void
each_conf_value_doall_arg(CONF_VALUE *cv, void *dummy)
{
STACK_OF(CONF_VALUE) *sk;
CONF_VALUE *v;
VALUE section, name, value, args;
int i, num;
if (cv->name) return;
sk = (STACK_OF(CONF_VALUE)*)cv->value;
num = sk_CONF_VALUE_num(sk);
section = rb_str_new2(cv->section);
for(i = 0; i < num; i++){
v = sk_CONF_VALUE_value(sk, i);
name = v->name ? rb_str_new2(v->name) : Qnil;
value = v->value ? rb_str_new2(v->value) : Qnil;
args = rb_ary_new3(3, section, name, value);
rb_yield(args);
}
}
static IMPLEMENT_LHASH_DOALL_ARG_FN(each_conf_value, CONF_VALUE, void *)
static VALUE
ossl_config_each(VALUE self)
{
CONF *conf;
RETURN_ENUMERATOR(self, 0, 0);
GetConfig(self, conf);
lh_doall_arg((_LHASH *)conf->data, LHASH_DOALL_ARG_FN(each_conf_value),
(void*)NULL);
return self;
}
#else
static VALUE
ossl_config_get_sections(VALUE self)
{
rb_warn("#sections don't work with %s", OPENSSL_VERSION_TEXT);
return rb_ary_new();
}
static VALUE
ossl_config_to_s(VALUE self)
{
rb_warn("#to_s don't work with %s", OPENSSL_VERSION_TEXT);
return rb_str_new(0, 0);
}
static VALUE
ossl_config_each(VALUE self)
{
rb_warn("#each don't work with %s", OPENSSL_VERSION_TEXT);
return self;
}
#endif
static VALUE
ossl_config_inspect(VALUE self)
{
VALUE str, ary = ossl_config_get_sections(self);
const char *cname = rb_class2name(rb_obj_class(self));
str = rb_str_new2("#<");
rb_str_cat2(str, cname);
rb_str_cat2(str, " sections=");
rb_str_append(str, rb_inspect(ary));
rb_str_cat2(str, ">");
return str;
}
/*
* INIT
*/
void
Init_ossl_config()
{
char *default_config_file;
eConfigError = rb_define_class_under(mOSSL, "ConfigError", eOSSLError);
cConfig = rb_define_class_under(mOSSL, "Config", rb_cObject);
default_config_file = CONF_get1_default_config_file();
rb_define_const(cConfig, "DEFAULT_CONFIG_FILE",
rb_str_new2(default_config_file));
OPENSSL_free(default_config_file);
rb_include_module(cConfig, rb_mEnumerable);
rb_define_singleton_method(cConfig, "parse", ossl_config_s_parse, 1);
rb_define_alias(CLASS_OF(cConfig), "load", "new");
rb_define_alloc_func(cConfig, ossl_config_s_alloc);
rb_define_copy_func(cConfig, ossl_config_copy);
rb_define_method(cConfig, "initialize", ossl_config_initialize, -1);
rb_define_method(cConfig, "get_value", ossl_config_get_value, 2);
rb_define_method(cConfig, "value", ossl_config_get_value_old, -1);
rb_define_method(cConfig, "add_value", ossl_config_add_value_m, 3);
rb_define_method(cConfig, "[]", ossl_config_get_section, 1);
rb_define_method(cConfig, "section", ossl_config_get_section_old, 1);
rb_define_method(cConfig, "[]=", ossl_config_set_section, 2);
rb_define_method(cConfig, "sections", ossl_config_get_sections, 0);
rb_define_method(cConfig, "to_s", ossl_config_to_s, 0);
rb_define_method(cConfig, "each", ossl_config_each, 0);
rb_define_method(cConfig, "inspect", ossl_config_inspect, 0);
}