summaryrefslogtreecommitdiff
path: root/ext/openssl/ossl_x509name.c
blob: 1522c3d897c63969a733b7b81c842766b0328465 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
/*
 * 'OpenSSL for Ruby' project
 * Copyright (C) 2001 Michal Rokos <m.rokos@sh.cvut.cz>
 * All rights reserved.
 */
/*
 * This program is licensed under the same licence as Ruby.
 * (See the file 'LICENCE'.)
 */
#include "ossl.h"

#define NewX509Name(klass) \
    TypedData_Wrap_Struct((klass), &ossl_x509name_type, 0)
#define SetX509Name(obj, name) do { \
    if (!(name)) { \
	ossl_raise(rb_eRuntimeError, "Name wasn't initialized."); \
    } \
    RTYPEDDATA_DATA(obj) = (name); \
} while (0)
#define GetX509Name(obj, name) do { \
    TypedData_Get_Struct((obj), X509_NAME, &ossl_x509name_type, (name)); \
    if (!(name)) { \
	ossl_raise(rb_eRuntimeError, "Name wasn't initialized."); \
    } \
} while (0)

#define OBJECT_TYPE_TEMPLATE \
  rb_const_get(cX509Name, rb_intern("OBJECT_TYPE_TEMPLATE"))
#define DEFAULT_OBJECT_TYPE \
  rb_const_get(cX509Name, rb_intern("DEFAULT_OBJECT_TYPE"))

/*
 * Classes
 */
VALUE cX509Name;
VALUE eX509NameError;

static void
ossl_x509name_free(void *ptr)
{
    X509_NAME_free(ptr);
}

static const rb_data_type_t ossl_x509name_type = {
    "OpenSSL/X509/NAME",
    {
	0, ossl_x509name_free,
    },
    0, 0, RUBY_TYPED_FREE_IMMEDIATELY,
};

/*
 * Public
 */
VALUE
ossl_x509name_new(X509_NAME *name)
{
    X509_NAME *new;
    VALUE obj;

    obj = NewX509Name(cX509Name);
    if (!name) {
	new = X509_NAME_new();
    } else {
	new = X509_NAME_dup(name);
    }
    if (!new) {
	ossl_raise(eX509NameError, NULL);
    }
    SetX509Name(obj, new);

    return obj;
}

X509_NAME *
GetX509NamePtr(VALUE obj)
{
    X509_NAME *name;

    GetX509Name(obj, name);

    return name;
}

/*
 * Private
 */
static VALUE
ossl_x509name_alloc(VALUE klass)
{
    X509_NAME *name;
    VALUE obj;

    obj = NewX509Name(klass);
    if (!(name = X509_NAME_new())) {
	ossl_raise(eX509NameError, NULL);
    }
    SetX509Name(obj, name);

    return obj;
}

static ID id_aref;
static VALUE ossl_x509name_add_entry(int, VALUE*, VALUE);
#define rb_aref(obj, key) rb_funcall((obj), id_aref, 1, (key))

static VALUE
ossl_x509name_init_i(RB_BLOCK_CALL_FUNC_ARGLIST(i, args))
{
    VALUE self = rb_ary_entry(args, 0);
    VALUE template = rb_ary_entry(args, 1);
    VALUE entry[3];

    Check_Type(i, T_ARRAY);
    entry[0] = rb_ary_entry(i, 0);
    entry[1] = rb_ary_entry(i, 1);
    entry[2] = rb_ary_entry(i, 2);
    if(NIL_P(entry[2])) entry[2] = rb_aref(template, entry[0]);
    if(NIL_P(entry[2])) entry[2] = DEFAULT_OBJECT_TYPE;
    ossl_x509name_add_entry(3, entry, self);

    return Qnil;
}

/*
 * call-seq:
 *    X509::Name.new                               => name
 *    X509::Name.new(der)                          => name
 *    X509::Name.new(distinguished_name)           => name
 *    X509::Name.new(distinguished_name, template) => name
 *
 * Creates a new Name.
 *
 * A name may be created from a DER encoded string _der_, an Array
 * representing a _distinguished_name_ or a _distinguished_name_ along with a
 * _template_.
 *
 *   name = OpenSSL::X509::Name.new [['CN', 'nobody'], ['DC', 'example']]
 *
 *   name = OpenSSL::X509::Name.new name.to_der
 *
 * See add_entry for a description of the _distinguished_name_ Array's
 * contents
 */
static VALUE
ossl_x509name_initialize(int argc, VALUE *argv, VALUE self)
{
    X509_NAME *name;
    VALUE arg, template;

    GetX509Name(self, name);
    if (rb_scan_args(argc, argv, "02", &arg, &template) == 0) {
	return self;
    }
    else {
	VALUE tmp = rb_check_array_type(arg);
	if (!NIL_P(tmp)) {
	    VALUE args;
	    if(NIL_P(template)) template = OBJECT_TYPE_TEMPLATE;
	    args = rb_ary_new3(2, self, template);
	    rb_block_call(tmp, rb_intern("each"), 0, 0, ossl_x509name_init_i, args);
	}
	else{
	    const unsigned char *p;
	    VALUE str = ossl_to_der_if_possible(arg);
	    X509_NAME *x;
	    StringValue(str);
	    p = (unsigned char *)RSTRING_PTR(str);
	    x = d2i_X509_NAME(&name, &p, RSTRING_LEN(str));
	    DATA_PTR(self) = name;
	    if(!x){
		ossl_raise(eX509NameError, NULL);
	    }
	}
    }

    return self;
}

static VALUE
ossl_x509name_initialize_copy(VALUE self, VALUE other)
{
    X509_NAME *name, *name_other, *name_new;

    rb_check_frozen(self);
    GetX509Name(self, name);
    GetX509Name(other, name_other);

    name_new = X509_NAME_dup(name_other);
    if (!name_new)
	ossl_raise(eX509NameError, "X509_NAME_dup");

    SetX509Name(self, name_new);
    X509_NAME_free(name);

    return self;
}

/*
 * call-seq:
 *    name.add_entry(oid, value [, type], loc: -1, set: 0) => self
 *
 * Adds a new entry with the given _oid_ and _value_ to this name.  The _oid_
 * is an object identifier defined in ASN.1.  Some common OIDs are:
 *
 * C::  Country Name
 * CN:: Common Name
 * DC:: Domain Component
 * O::  Organization Name
 * OU:: Organizational Unit Name
 * ST:: State or Province Name
 *
 * The optional keyword parameters _loc_ and _set_ specify where to insert the
 * new attribute. Refer to the manpage of X509_NAME_add_entry(3) for details.
 * _loc_ defaults to -1 and _set_ defaults to 0. This appends a single-valued
 * RDN to the end.
 */
static
VALUE ossl_x509name_add_entry(int argc, VALUE *argv, VALUE self)
{
    X509_NAME *name;
    VALUE oid, value, type, opts, kwargs[2];
    static ID kwargs_ids[2];
    const char *oid_name;
    int loc = -1, set = 0;

    if (!kwargs_ids[0]) {
	kwargs_ids[0] = rb_intern_const("loc");
	kwargs_ids[1] = rb_intern_const("set");
    }
    rb_scan_args(argc, argv, "21:", &oid, &value, &type, &opts);
    rb_get_kwargs(opts, kwargs_ids, 0, 2, kwargs);
    oid_name = StringValueCStr(oid);
    StringValue(value);
    if(NIL_P(type)) type = rb_aref(OBJECT_TYPE_TEMPLATE, oid);
    if (kwargs[0] != Qundef)
	loc = NUM2INT(kwargs[0]);
    if (kwargs[1] != Qundef)
	set = NUM2INT(kwargs[1]);
    GetX509Name(self, name);
    if (!X509_NAME_add_entry_by_txt(name, oid_name, NUM2INT(type),
				    (unsigned char *)RSTRING_PTR(value),
				    RSTRING_LENINT(value), loc, set))
	ossl_raise(eX509NameError, "X509_NAME_add_entry_by_txt");
    return self;
}

static VALUE
ossl_x509name_to_s_old(VALUE self)
{
    X509_NAME *name;
    char *buf;

    GetX509Name(self, name);
    buf = X509_NAME_oneline(name, NULL, 0);
    if (!buf)
	ossl_raise(eX509NameError, "X509_NAME_oneline");
    return ossl_buf2str(buf, rb_long2int(strlen(buf)));
}

static VALUE
x509name_print(VALUE self, unsigned long iflag)
{
    X509_NAME *name;
    BIO *out;
    int ret;

    GetX509Name(self, name);
    out = BIO_new(BIO_s_mem());
    if (!out)
	ossl_raise(eX509NameError, NULL);
    ret = X509_NAME_print_ex(out, name, 0, iflag);
    if (ret < 0 || (iflag == XN_FLAG_COMPAT && ret == 0)) {
	BIO_free(out);
	ossl_raise(eX509NameError, "X509_NAME_print_ex");
    }
    return ossl_membio2str(out);
}

/*
 * call-seq:
 *    name.to_s         -> string
 *    name.to_s(format) -> string
 *
 * Returns a String representation of the Distinguished Name. _format_ is
 * one of:
 *
 * * OpenSSL::X509::Name::COMPAT
 * * OpenSSL::X509::Name::RFC2253
 * * OpenSSL::X509::Name::ONELINE
 * * OpenSSL::X509::Name::MULTILINE
 *
 * If _format_ is omitted, the largely broken and traditional OpenSSL format
 * is used.
 */
static VALUE
ossl_x509name_to_s(int argc, VALUE *argv, VALUE self)
{
    rb_check_arity(argc, 0, 1);
    /* name.to_s(nil) was allowed */
    if (!argc || NIL_P(argv[0]))
	return ossl_x509name_to_s_old(self);
    else
	return x509name_print(self, NUM2ULONG(argv[0]));
}

/*
 * call-seq:
 *    name.to_utf8 -> string
 *
 * Returns an UTF-8 representation of the distinguished name, as specified
 * in {RFC 2253}[https://www.ietf.org/rfc/rfc2253.txt].
 */
static VALUE
ossl_x509name_to_utf8(VALUE self)
{
    VALUE str = x509name_print(self, XN_FLAG_RFC2253 & ~ASN1_STRFLGS_ESC_MSB);
    rb_enc_associate_index(str, rb_utf8_encindex());
    return str;
}

/* :nodoc: */
static VALUE
ossl_x509name_inspect(VALUE self)
{
    return rb_enc_sprintf(rb_utf8_encoding(), "#<%"PRIsVALUE" %"PRIsVALUE">",
			  rb_obj_class(self), ossl_x509name_to_utf8(self));
}

/*
 * call-seq:
 *    name.to_a => [[name, data, type], ...]
 *
 * Returns an Array representation of the distinguished name suitable for
 * passing to ::new
 */
static VALUE
ossl_x509name_to_a(VALUE self)
{
    X509_NAME *name;
    X509_NAME_ENTRY *entry;
    int i,entries,nid;
    char long_name[512];
    const char *short_name;
    VALUE ary, vname, ret;
    ASN1_STRING *value;

    GetX509Name(self, name);
    entries = X509_NAME_entry_count(name);
    if (entries < 0) {
	OSSL_Debug("name entries < 0!");
	return rb_ary_new();
    }
    ret = rb_ary_new2(entries);
    for (i=0; i<entries; i++) {
	if (!(entry = X509_NAME_get_entry(name, i))) {
	    ossl_raise(eX509NameError, NULL);
	}
	if (!i2t_ASN1_OBJECT(long_name, sizeof(long_name),
			     X509_NAME_ENTRY_get_object(entry))) {
	    ossl_raise(eX509NameError, NULL);
	}
	nid = OBJ_ln2nid(long_name);
	if (nid == NID_undef) {
	    vname = rb_str_new2((const char *) &long_name);
	} else {
	    short_name = OBJ_nid2sn(nid);
	    vname = rb_str_new2(short_name); /*do not free*/
	}
	value = X509_NAME_ENTRY_get_data(entry);
	ary = rb_ary_new3(3, vname, asn1str_to_str(value), INT2NUM(value->type));
	rb_ary_push(ret, ary);
    }
    return ret;
}

static int
ossl_x509name_cmp0(VALUE self, VALUE other)
{
    X509_NAME *name1, *name2;

    GetX509Name(self, name1);
    GetX509Name(other, name2);

    return X509_NAME_cmp(name1, name2);
}

/*
 * call-seq:
 *    name.cmp(other) -> -1 | 0 | 1 | nil
 *    name <=> other  -> -1 | 0 | 1 | nil
 *
 * Compares this Name with _other_ and returns +0+ if they are the same and +-1+
 * or ++1+ if they are greater or less than each other respectively.
 * Returns +nil+ if they are not comparable (i.e. different types).
 */
static VALUE
ossl_x509name_cmp(VALUE self, VALUE other)
{
    int result;

    if (!rb_obj_is_kind_of(other, cX509Name))
	return Qnil;

    result = ossl_x509name_cmp0(self, other);
    if (result < 0) return INT2FIX(-1);
    if (result > 0) return INT2FIX(1);

    return INT2FIX(0);
}

/*
 * call-seq:
 *   name.eql?(other) -> true | false
 *
 * Returns true if _name_ and _other_ refer to the same hash key.
 */
static VALUE
ossl_x509name_eql(VALUE self, VALUE other)
{
    if (!rb_obj_is_kind_of(other, cX509Name))
	return Qfalse;

    return ossl_x509name_cmp0(self, other) == 0 ? Qtrue : Qfalse;
}

/*
 * call-seq:
 *    name.hash => integer
 *
 * The hash value returned is suitable for use as a certificate's filename in
 * a CA path.
 */
static VALUE
ossl_x509name_hash(VALUE self)
{
    X509_NAME *name;
    unsigned long hash;

    GetX509Name(self, name);

    hash = X509_NAME_hash(name);

    return ULONG2NUM(hash);
}

/*
 * call-seq:
 *    name.hash_old => integer
 *
 * Returns an MD5 based hash used in OpenSSL 0.9.X.
 */
static VALUE
ossl_x509name_hash_old(VALUE self)
{
    X509_NAME *name;
    unsigned long hash;

    GetX509Name(self, name);

    hash = X509_NAME_hash_old(name);

    return ULONG2NUM(hash);
}

/*
 * call-seq:
 *    name.to_der => string
 *
 * Converts the name to DER encoding
 */
static VALUE
ossl_x509name_to_der(VALUE self)
{
    X509_NAME *name;
    VALUE str;
    long len;
    unsigned char *p;

    GetX509Name(self, name);
    if((len = i2d_X509_NAME(name, NULL)) <= 0)
	ossl_raise(eX509NameError, NULL);
    str = rb_str_new(0, len);
    p = (unsigned char *)RSTRING_PTR(str);
    if(i2d_X509_NAME(name, &p) <= 0)
	ossl_raise(eX509NameError, NULL);
    ossl_str_adjust(str, p);

    return str;
}

/*
 * Document-class: OpenSSL::X509::Name
 *
 * An X.509 name represents a hostname, email address or other entity
 * associated with a public key.
 *
 * You can create a Name by parsing a distinguished name String or by
 * supplying the distinguished name as an Array.
 *
 *   name = OpenSSL::X509::Name.parse '/CN=nobody/DC=example'
 *
 *   name = OpenSSL::X509::Name.new [['CN', 'nobody'], ['DC', 'example']]
 */

void
Init_ossl_x509name(void)
{
#undef rb_intern
    VALUE utf8str, ptrstr, ia5str, hash;

#if 0
    mOSSL = rb_define_module("OpenSSL");
    eOSSLError = rb_define_class_under(mOSSL, "OpenSSLError", rb_eStandardError);
    mX509 = rb_define_module_under(mOSSL, "X509");
#endif

    id_aref = rb_intern("[]");
    eX509NameError = rb_define_class_under(mX509, "NameError", eOSSLError);
    cX509Name = rb_define_class_under(mX509, "Name", rb_cObject);

    rb_include_module(cX509Name, rb_mComparable);

    rb_define_alloc_func(cX509Name, ossl_x509name_alloc);
    rb_define_method(cX509Name, "initialize", ossl_x509name_initialize, -1);
    rb_define_method(cX509Name, "initialize_copy", ossl_x509name_initialize_copy, 1);
    rb_define_method(cX509Name, "add_entry", ossl_x509name_add_entry, -1);
    rb_define_method(cX509Name, "to_s", ossl_x509name_to_s, -1);
    rb_define_method(cX509Name, "to_utf8", ossl_x509name_to_utf8, 0);
    rb_define_method(cX509Name, "inspect", ossl_x509name_inspect, 0);
    rb_define_method(cX509Name, "to_a", ossl_x509name_to_a, 0);
    rb_define_method(cX509Name, "cmp", ossl_x509name_cmp, 1);
    rb_define_alias(cX509Name, "<=>", "cmp");
    rb_define_method(cX509Name, "eql?", ossl_x509name_eql, 1);
    rb_define_method(cX509Name, "hash", ossl_x509name_hash, 0);
    rb_define_method(cX509Name, "hash_old", ossl_x509name_hash_old, 0);
    rb_define_method(cX509Name, "to_der", ossl_x509name_to_der, 0);

    utf8str = INT2NUM(V_ASN1_UTF8STRING);
    ptrstr = INT2NUM(V_ASN1_PRINTABLESTRING);
    ia5str = INT2NUM(V_ASN1_IA5STRING);

    /*
     * The default object type for name entries.
     */
    rb_define_const(cX509Name, "DEFAULT_OBJECT_TYPE", utf8str);
    hash = rb_hash_new();
    RHASH_SET_IFNONE(hash, utf8str);
    rb_hash_aset(hash, rb_str_new2("C"), ptrstr);
    rb_hash_aset(hash, rb_str_new2("countryName"), ptrstr);
    rb_hash_aset(hash, rb_str_new2("serialNumber"), ptrstr);
    rb_hash_aset(hash, rb_str_new2("dnQualifier"), ptrstr);
    rb_hash_aset(hash, rb_str_new2("DC"), ia5str);
    rb_hash_aset(hash, rb_str_new2("domainComponent"), ia5str);
    rb_hash_aset(hash, rb_str_new2("emailAddress"), ia5str);

    /*
     * The default object type template for name entries.
     */
    rb_define_const(cX509Name, "OBJECT_TYPE_TEMPLATE", hash);

    /*
     * A flag for #to_s.
     *
     * Breaks the name returned into multiple lines if longer than 80
     * characters.
     */
    rb_define_const(cX509Name, "COMPAT", ULONG2NUM(XN_FLAG_COMPAT));

    /*
     * A flag for #to_s.
     *
     * Returns an RFC2253 format name.
     */
    rb_define_const(cX509Name, "RFC2253", ULONG2NUM(XN_FLAG_RFC2253));

    /*
     * A flag for #to_s.
     *
     * Returns a more readable format than RFC2253.
     */
    rb_define_const(cX509Name, "ONELINE", ULONG2NUM(XN_FLAG_ONELINE));

    /*
     * A flag for #to_s.
     *
     * Returns a multiline format.
     */
    rb_define_const(cX509Name, "MULTILINE", ULONG2NUM(XN_FLAG_MULTILINE));
}