/src/nss-nspr/nss/lib/certhigh/certhtml.c

Source (jump to first uncovered line)
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*
 * certhtml.c --- convert a cert to html
 */

#include "seccomon.h"
#include "secitem.h"
#include "sechash.h"
#include "cert.h"
#include "keyhi.h"
#include "secder.h"
#include "prprf.h"
#include "secport.h"
#include "secasn1.h"
#include "pk11func.h"

static char *hex = "0123456789ABCDEF";

/*
** Convert a der-encoded integer to a hex printable string form
*/
char *
CERT_Hexify(SECItem *i, int do_colon)
{
    unsigned char *cp, *end;
    char *rv, *o;

    if (!i->len) {
        return PORT_Strdup("00");
    }

    rv = o = (char *)PORT_Alloc(i->len * 3);
    if (!rv)
        return rv;

    cp = i->data;
    end = cp + i->len;
    while (cp < end) {
        unsigned char ch = *cp++;
        *o++ = hex[(ch >> 4) & 0xf];
        *o++ = hex[ch & 0xf];
        if (cp != end) {
            if (do_colon) {
                *o++ = ':';
            }
        }
    }
    *o = 0; /* Null terminate the string */
    return rv;
}

#define BREAK "<br>"
#define BREAKLEN 4
#define COMMA ", "
#define COMMALEN 2

#define MAX_OUS 20
#define MAX_DC MAX_OUS

char *
CERT_FormatName(CERTName *name)
{
    CERTRDN **rdns;
    CERTRDN *rdn;
    CERTAVA **avas;
    CERTAVA *ava;
    char *buf = 0;
    char *tmpbuf = 0;
    SECItem *cn = 0;
    SECItem *email = 0;
    SECItem *org = 0;
    SECItem *loc = 0;
    SECItem *state = 0;
    SECItem *country = 0;
    SECItem *dq = 0;

    unsigned len = 0;
    int tag;
    int i;
    int ou_count = 0;
    int dc_count = 0;
    PRBool first;
    SECItem *orgunit[MAX_OUS];
    SECItem *dc[MAX_DC];

    /* Loop over name components and gather the interesting ones */
    rdns = name->rdns;
    while ((rdn = *rdns++) != 0) {
        avas = rdn->avas;
        while ((ava = *avas++) != 0) {
            tag = CERT_GetAVATag(ava);
            switch (tag) {
                case SEC_OID_AVA_COMMON_NAME:
                    if (cn) {
                        break;
                    }
                    cn = CERT_DecodeAVAValue(&ava->value);
                    if (!cn) {
                        goto loser;
                    }
                    len += cn->len;
                    // cn will always have BREAK after it
                    len += BREAKLEN;
                    break;
                case SEC_OID_AVA_COUNTRY_NAME:
                    if (country) {
                        break;
                    }
                    country = CERT_DecodeAVAValue(&ava->value);
                    if (!country) {
                        goto loser;
                    }
                    len += country->len;
                    // country may have COMMA after it (if we over-count len,
                    // that's fine - we'll just allocate a buffer larger than we
                    // need)
                    len += COMMALEN;
                    break;
                case SEC_OID_AVA_LOCALITY:
                    if (loc) {
                        break;
                    }
                    loc = CERT_DecodeAVAValue(&ava->value);
                    if (!loc) {
                        goto loser;
                    }
                    len += loc->len;
                    // loc may have COMMA after it
                    len += COMMALEN;
                    break;
                case SEC_OID_AVA_STATE_OR_PROVINCE:
                    if (state) {
                        break;
                    }
                    state = CERT_DecodeAVAValue(&ava->value);
                    if (!state) {
                        goto loser;
                    }
                    len += state->len;
                    // state currently won't have COMMA after it, but this is a
                    // (probably vain) attempt to future-proof this code
                    len += COMMALEN;
                    break;
                case SEC_OID_AVA_ORGANIZATION_NAME:
                    if (org) {
                        break;
                    }
                    org = CERT_DecodeAVAValue(&ava->value);
                    if (!org) {
                        goto loser;
                    }
                    len += org->len;
                    // org will have BREAK after it
                    len += BREAKLEN;
                    break;
                case SEC_OID_AVA_DN_QUALIFIER:
                    if (dq) {
                        break;
                    }
                    dq = CERT_DecodeAVAValue(&ava->value);
                    if (!dq) {
                        goto loser;
                    }
                    len += dq->len;
                    // dq will have BREAK after it
                    len += BREAKLEN;
                    break;
                case SEC_OID_AVA_ORGANIZATIONAL_UNIT_NAME:
                    if (ou_count < MAX_OUS) {
                        orgunit[ou_count] = CERT_DecodeAVAValue(&ava->value);
                        if (!orgunit[ou_count]) {
                            goto loser;
                        }
                        len += orgunit[ou_count++]->len;
                        // each ou will have BREAK after it
                        len += BREAKLEN;
                    }
                    break;
                case SEC_OID_AVA_DC:
                    if (dc_count < MAX_DC) {
                        dc[dc_count] = CERT_DecodeAVAValue(&ava->value);
                        if (!dc[dc_count]) {
                            goto loser;
                        }
                        len += dc[dc_count++]->len;
                        // each dc will have BREAK after it
                        len += BREAKLEN;
                    }
                    break;
                case SEC_OID_PKCS9_EMAIL_ADDRESS:
                case SEC_OID_RFC1274_MAIL:
                    if (email) {
                        break;
                    }
                    email = CERT_DecodeAVAValue(&ava->value);
                    if (!email) {
                        goto loser;
                    }
                    len += email->len;
                    // email will have BREAK after it
                    len += BREAKLEN;
                    break;
                default:
                    break;
            }
        }
    }

    // there may be a final BREAK
    len += BREAKLEN;

    /* allocate buffer */
    buf = (char *)PORT_Alloc(len);
    if (!buf) {
        goto loser;
    }

    tmpbuf = buf;

    if (cn) {
        PORT_Memcpy(tmpbuf, cn->data, cn->len);
        tmpbuf += cn->len;
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    if (email) {
        PORT_Memcpy(tmpbuf, email->data, email->len);
        tmpbuf += (email->len);
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    for (i = ou_count - 1; i >= 0; i--) {
        PORT_Memcpy(tmpbuf, orgunit[i]->data, orgunit[i]->len);
        tmpbuf += (orgunit[i]->len);
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    if (dq) {
        PORT_Memcpy(tmpbuf, dq->data, dq->len);
        tmpbuf += (dq->len);
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    if (org) {
        PORT_Memcpy(tmpbuf, org->data, org->len);
        tmpbuf += (org->len);
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    for (i = dc_count - 1; i >= 0; i--) {
        PORT_Memcpy(tmpbuf, dc[i]->data, dc[i]->len);
        tmpbuf += (dc[i]->len);
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }
    first = PR_TRUE;
    if (loc) {
        PORT_Memcpy(tmpbuf, loc->data, loc->len);
        tmpbuf += (loc->len);
        first = PR_FALSE;
    }
    if (state) {
        if (!first) {
            PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
            tmpbuf += COMMALEN;
        }
        PORT_Memcpy(tmpbuf, state->data, state->len);
        tmpbuf += (state->len);
        first = PR_FALSE;
    }
    if (country) {
        if (!first) {
            PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
            tmpbuf += COMMALEN;
        }
        PORT_Memcpy(tmpbuf, country->data, country->len);
        tmpbuf += (country->len);
        first = PR_FALSE;
    }
    if (!first) {
        PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
        tmpbuf += BREAKLEN;
    }

    *tmpbuf = 0;

/* fall through and clean */
loser:
    if (cn) {
        SECITEM_FreeItem(cn, PR_TRUE);
    }
    if (email) {
        SECITEM_FreeItem(email, PR_TRUE);
    }
    for (i = ou_count - 1; i >= 0; i--) {
        SECITEM_FreeItem(orgunit[i], PR_TRUE);
    }
    if (dq) {
        SECITEM_FreeItem(dq, PR_TRUE);
    }
    if (org) {
        SECITEM_FreeItem(org, PR_TRUE);
    }
    for (i = dc_count - 1; i >= 0; i--) {
        SECITEM_FreeItem(dc[i], PR_TRUE);
    }
    if (loc) {
        SECITEM_FreeItem(loc, PR_TRUE);
    }
    if (state) {
        SECITEM_FreeItem(state, PR_TRUE);
    }
    if (country) {
        SECITEM_FreeItem(country, PR_TRUE);
    }

    return (buf);
}

Coverage Report

Created: 2024-11-21 07:03

Line	Count	Source (jump to first uncovered line)
1		/* This Source Code Form is subject to the terms of the Mozilla Public
2		* License, v. 2.0. If a copy of the MPL was not distributed with this
3		* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5		/*
6		* certhtml.c --- convert a cert to html
7		*/
8
9		#include "seccomon.h"
10		#include "secitem.h"
11		#include "sechash.h"
12		#include "cert.h"
13		#include "keyhi.h"
14		#include "secder.h"
15		#include "prprf.h"
16		#include "secport.h"
17		#include "secasn1.h"
18		#include "pk11func.h"
19
20		static char *hex = "0123456789ABCDEF";
21
22		/*
23		** Convert a der-encoded integer to a hex printable string form
24		*/
25		char *
26		CERT_Hexify(SECItem *i, int do_colon)
27	0	{
28	0	unsigned char cp, end;
29	0	char rv, o;
30
31	0	if (!i->len) {
32	0	return PORT_Strdup("00");
33	0	}
34
35	0	rv = o = (char )PORT_Alloc(i->len 3);
36	0	if (!rv)
37	0	return rv;
38
39	0	cp = i->data;
40	0	end = cp + i->len;
41	0	while (cp < end) {
42	0	unsigned char ch = *cp++;
43	0	*o++ = hex[(ch >> 4) & 0xf];
44	0	*o++ = hex[ch & 0xf];
45	0	if (cp != end) {
46	0	if (do_colon) {
47	0	*o++ = ':';
48	0	}
49	0	}
50	0	}
51	0	o = 0; / Null terminate the string */
52	0	return rv;
53	0	}
54
55	0	#define BREAK "<br>"
56	0	#define BREAKLEN 4
57	0	#define COMMA ", "
58	0	#define COMMALEN 2
59
60	0	#define MAX_OUS 20
61	0	#define MAX_DC MAX_OUS
62
63		char *
64		CERT_FormatName(CERTName *name)
65	0	{
66	0	CERTRDN **rdns;
67	0	CERTRDN *rdn;
68	0	CERTAVA **avas;
69	0	CERTAVA *ava;
70	0	char *buf = 0;
71	0	char *tmpbuf = 0;
72	0	SECItem *cn = 0;
73	0	SECItem *email = 0;
74	0	SECItem *org = 0;
75	0	SECItem *loc = 0;
76	0	SECItem *state = 0;
77	0	SECItem *country = 0;
78	0	SECItem *dq = 0;
79
80	0	unsigned len = 0;
81	0	int tag;
82	0	int i;
83	0	int ou_count = 0;
84	0	int dc_count = 0;
85	0	PRBool first;
86	0	SECItem *orgunit[MAX_OUS];
87	0	SECItem *dc[MAX_DC];
88
89		/* Loop over name components and gather the interesting ones */
90	0	rdns = name->rdns;
91	0	while ((rdn = *rdns++) != 0) {
92	0	avas = rdn->avas;
93	0	while ((ava = *avas++) != 0) {
94	0	tag = CERT_GetAVATag(ava);
95	0	switch (tag) {
96	0	case SEC_OID_AVA_COMMON_NAME:
97	0	if (cn) {
98	0	break;
99	0	}
100	0	cn = CERT_DecodeAVAValue(&ava->value);
101	0	if (!cn) {
102	0	goto loser;
103	0	}
104	0	len += cn->len;
105		// cn will always have BREAK after it
106	0	len += BREAKLEN;
107	0	break;
108	0	case SEC_OID_AVA_COUNTRY_NAME:
109	0	if (country) {
110	0	break;
111	0	}
112	0	country = CERT_DecodeAVAValue(&ava->value);
113	0	if (!country) {
114	0	goto loser;
115	0	}
116	0	len += country->len;
117		// country may have COMMA after it (if we over-count len,
118		// that's fine - we'll just allocate a buffer larger than we
119		// need)
120	0	len += COMMALEN;
121	0	break;
122	0	case SEC_OID_AVA_LOCALITY:
123	0	if (loc) {
124	0	break;
125	0	}
126	0	loc = CERT_DecodeAVAValue(&ava->value);
127	0	if (!loc) {
128	0	goto loser;
129	0	}
130	0	len += loc->len;
131		// loc may have COMMA after it
132	0	len += COMMALEN;
133	0	break;
134	0	case SEC_OID_AVA_STATE_OR_PROVINCE:
135	0	if (state) {
136	0	break;
137	0	}
138	0	state = CERT_DecodeAVAValue(&ava->value);
139	0	if (!state) {
140	0	goto loser;
141	0	}
142	0	len += state->len;
143		// state currently won't have COMMA after it, but this is a
144		// (probably vain) attempt to future-proof this code
145	0	len += COMMALEN;
146	0	break;
147	0	case SEC_OID_AVA_ORGANIZATION_NAME:
148	0	if (org) {
149	0	break;
150	0	}
151	0	org = CERT_DecodeAVAValue(&ava->value);
152	0	if (!org) {
153	0	goto loser;
154	0	}
155	0	len += org->len;
156		// org will have BREAK after it
157	0	len += BREAKLEN;
158	0	break;
159	0	case SEC_OID_AVA_DN_QUALIFIER:
160	0	if (dq) {
161	0	break;
162	0	}
163	0	dq = CERT_DecodeAVAValue(&ava->value);
164	0	if (!dq) {
165	0	goto loser;
166	0	}
167	0	len += dq->len;
168		// dq will have BREAK after it
169	0	len += BREAKLEN;
170	0	break;
171	0	case SEC_OID_AVA_ORGANIZATIONAL_UNIT_NAME:
172	0	if (ou_count < MAX_OUS) {
173	0	orgunit[ou_count] = CERT_DecodeAVAValue(&ava->value);
174	0	if (!orgunit[ou_count]) {
175	0	goto loser;
176	0	}
177	0	len += orgunit[ou_count++]->len;
178		// each ou will have BREAK after it
179	0	len += BREAKLEN;
180	0	}
181	0	break;
182	0	case SEC_OID_AVA_DC:
183	0	if (dc_count < MAX_DC) {
184	0	dc[dc_count] = CERT_DecodeAVAValue(&ava->value);
185	0	if (!dc[dc_count]) {
186	0	goto loser;
187	0	}
188	0	len += dc[dc_count++]->len;
189		// each dc will have BREAK after it
190	0	len += BREAKLEN;
191	0	}
192	0	break;
193	0	case SEC_OID_PKCS9_EMAIL_ADDRESS:
194	0	case SEC_OID_RFC1274_MAIL:
195	0	if (email) {
196	0	break;
197	0	}
198	0	email = CERT_DecodeAVAValue(&ava->value);
199	0	if (!email) {
200	0	goto loser;
201	0	}
202	0	len += email->len;
203		// email will have BREAK after it
204	0	len += BREAKLEN;
205	0	break;
206	0	default:
207	0	break;
208	0	}
209	0	}
210	0	}
211
212		// there may be a final BREAK
213	0	len += BREAKLEN;
214
215		/* allocate buffer */
216	0	buf = (char *)PORT_Alloc(len);
217	0	if (!buf) {
218	0	goto loser;
219	0	}
220
221	0	tmpbuf = buf;
222
223	0	if (cn) {
224	0	PORT_Memcpy(tmpbuf, cn->data, cn->len);
225	0	tmpbuf += cn->len;
226	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
227	0	tmpbuf += BREAKLEN;
228	0	}
229	0	if (email) {
230	0	PORT_Memcpy(tmpbuf, email->data, email->len);
231	0	tmpbuf += (email->len);
232	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
233	0	tmpbuf += BREAKLEN;
234	0	}
235	0	for (i = ou_count - 1; i >= 0; i--) {
236	0	PORT_Memcpy(tmpbuf, orgunit[i]->data, orgunit[i]->len);
237	0	tmpbuf += (orgunit[i]->len);
238	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
239	0	tmpbuf += BREAKLEN;
240	0	}
241	0	if (dq) {
242	0	PORT_Memcpy(tmpbuf, dq->data, dq->len);
243	0	tmpbuf += (dq->len);
244	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
245	0	tmpbuf += BREAKLEN;
246	0	}
247	0	if (org) {
248	0	PORT_Memcpy(tmpbuf, org->data, org->len);
249	0	tmpbuf += (org->len);
250	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
251	0	tmpbuf += BREAKLEN;
252	0	}
253	0	for (i = dc_count - 1; i >= 0; i--) {
254	0	PORT_Memcpy(tmpbuf, dc[i]->data, dc[i]->len);
255	0	tmpbuf += (dc[i]->len);
256	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
257	0	tmpbuf += BREAKLEN;
258	0	}
259	0	first = PR_TRUE;
260	0	if (loc) {
261	0	PORT_Memcpy(tmpbuf, loc->data, loc->len);
262	0	tmpbuf += (loc->len);
263	0	first = PR_FALSE;
264	0	}
265	0	if (state) {
266	0	if (!first) {
267	0	PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
268	0	tmpbuf += COMMALEN;
269	0	}
270	0	PORT_Memcpy(tmpbuf, state->data, state->len);
271	0	tmpbuf += (state->len);
272	0	first = PR_FALSE;
273	0	}
274	0	if (country) {
275	0	if (!first) {
276	0	PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
277	0	tmpbuf += COMMALEN;
278	0	}
279	0	PORT_Memcpy(tmpbuf, country->data, country->len);
280	0	tmpbuf += (country->len);
281	0	first = PR_FALSE;
282	0	}
283	0	if (!first) {
284	0	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
285	0	tmpbuf += BREAKLEN;
286	0	}
287
288	0	*tmpbuf = 0;
289
290		/* fall through and clean */
291	0	loser:
292	0	if (cn) {
293	0	SECITEM_FreeItem(cn, PR_TRUE);
294	0	}
295	0	if (email) {
296	0	SECITEM_FreeItem(email, PR_TRUE);
297	0	}
298	0	for (i = ou_count - 1; i >= 0; i--) {
299	0	SECITEM_FreeItem(orgunit[i], PR_TRUE);
300	0	}
301	0	if (dq) {
302	0	SECITEM_FreeItem(dq, PR_TRUE);
303	0	}
304	0	if (org) {
305	0	SECITEM_FreeItem(org, PR_TRUE);
306	0	}
307	0	for (i = dc_count - 1; i >= 0; i--) {
308	0	SECITEM_FreeItem(dc[i], PR_TRUE);
309	0	}
310	0	if (loc) {
311	0	SECITEM_FreeItem(loc, PR_TRUE);
312	0	}
313	0	if (state) {
314	0	SECITEM_FreeItem(state, PR_TRUE);
315	0	}
316	0	if (country) {
317	0	SECITEM_FreeItem(country, PR_TRUE);
318	0	}
319
320	0	return (buf);
321	0	}