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

Source
/* 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: 2026-02-18 06:59

Line	Count	Source
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	2.55k	#define BREAK "<br>"
56	9.50k	#define BREAKLEN 4
57	42	#define COMMA ", "
58	680	#define COMMALEN 2
59
60	1.39k	#define MAX_OUS 20
61	897	#define MAX_DC MAX_OUS
62
63		char *
64		CERT_FormatName(CERTName *name)
65	2.55k	{
66	2.55k	CERTRDN **rdns;
67	2.55k	CERTRDN *rdn;
68	2.55k	CERTAVA **avas;
69	2.55k	CERTAVA *ava;
70	2.55k	char *buf = 0;
71	2.55k	char *tmpbuf = 0;
72	2.55k	SECItem *cn = 0;
73	2.55k	SECItem *email = 0;
74	2.55k	SECItem *org = 0;
75	2.55k	SECItem *loc = 0;
76	2.55k	SECItem *state = 0;
77	2.55k	SECItem *country = 0;
78	2.55k	SECItem *dq = 0;
79
80	2.55k	unsigned len = 0;
81	2.55k	int tag;
82	2.55k	int i;
83	2.55k	int ou_count = 0;
84	2.55k	int dc_count = 0;
85	2.55k	PRBool first;
86	2.55k	SECItem *orgunit[MAX_OUS];
87	2.55k	SECItem *dc[MAX_DC];
88
89		/* Loop over name components and gather the interesting ones */
90	2.55k	rdns = name->rdns;
91	27.7k	while ((rdn = *rdns++) != 0) {
92	25.3k	avas = rdn->avas;
93	63.8k	while ((ava = *avas++) != 0) {
94	38.6k	tag = CERT_GetAVATag(ava);
95	38.6k	switch (tag) {
96	491	case SEC_OID_AVA_COMMON_NAME:
97	491	if (cn) {
98	399	break;
99	399	}
100	92	cn = CERT_DecodeAVAValue(&ava->value);
101	92	if (!cn) {
102	2	goto loser;
103	2	}
104	90	len += cn->len;
105		// cn will always have BREAK after it
106	90	len += BREAKLEN;
107	90	break;
108	2.28k	case SEC_OID_AVA_COUNTRY_NAME:
109	2.28k	if (country) {
110	1.85k	break;
111	1.85k	}
112	424	country = CERT_DecodeAVAValue(&ava->value);
113	424	if (!country) {
114	136	goto loser;
115	136	}
116	288	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	288	len += COMMALEN;
121	288	break;
122	1.06k	case SEC_OID_AVA_LOCALITY:
123	1.06k	if (loc) {
124	774	break;
125	774	}
126	292	loc = CERT_DecodeAVAValue(&ava->value);
127	292	if (!loc) {
128	5	goto loser;
129	5	}
130	287	len += loc->len;
131		// loc may have COMMA after it
132	287	len += COMMALEN;
133	287	break;
134	226	case SEC_OID_AVA_STATE_OR_PROVINCE:
135	226	if (state) {
136	204	break;
137	204	}
138	22	state = CERT_DecodeAVAValue(&ava->value);
139	22	if (!state) {
140	1	goto loser;
141	1	}
142	21	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	21	len += COMMALEN;
146	21	break;
147	6.00k	case SEC_OID_AVA_ORGANIZATION_NAME:
148	6.00k	if (org) {
149	5.40k	break;
150	5.40k	}
151	596	org = CERT_DecodeAVAValue(&ava->value);
152	596	if (!org) {
153	23	goto loser;
154	23	}
155	573	len += org->len;
156		// org will have BREAK after it
157	573	len += BREAKLEN;
158	573	break;
159	204	case SEC_OID_AVA_DN_QUALIFIER:
160	204	if (dq) {
161	194	break;
162	194	}
163	10	dq = CERT_DecodeAVAValue(&ava->value);
164	10	if (!dq) {
165	1	goto loser;
166	1	}
167	9	len += dq->len;
168		// dq will have BREAK after it
169	9	len += BREAKLEN;
170	9	break;
171	500	case SEC_OID_AVA_ORGANIZATIONAL_UNIT_NAME:
172	500	if (ou_count < MAX_OUS) {
173	306	orgunit[ou_count] = CERT_DecodeAVAValue(&ava->value);
174	306	if (!orgunit[ou_count]) {
175	1	goto loser;
176	1	}
177	305	len += orgunit[ou_count++]->len;
178		// each ou will have BREAK after it
179	305	len += BREAKLEN;
180	305	}
181	499	break;
182	897	case SEC_OID_AVA_DC:
183	897	if (dc_count < MAX_DC) {
184	693	dc[dc_count] = CERT_DecodeAVAValue(&ava->value);
185	693	if (!dc[dc_count]) {
186	13	goto loser;
187	13	}
188	680	len += dc[dc_count++]->len;
189		// each dc will have BREAK after it
190	680	len += BREAKLEN;
191	680	}
192	884	break;
193	22.3k	case SEC_OID_PKCS9_EMAIL_ADDRESS:
194	22.5k	case SEC_OID_RFC1274_MAIL:
195	22.5k	if (email) {
196	22.1k	break;
197	22.1k	}
198	389	email = CERT_DecodeAVAValue(&ava->value);
199	389	if (!email) {
200	9	goto loser;
201	9	}
202	380	len += email->len;
203		// email will have BREAK after it
204	380	len += BREAKLEN;
205	380	break;
206	4.49k	default:
207	4.49k	break;
208	38.6k	}
209	38.6k	}
210	25.3k	}
211
212		// there may be a final BREAK
213	2.36k	len += BREAKLEN;
214
215		/* allocate buffer */
216	2.36k	buf = (char *)PORT_Alloc(len);
217	2.36k	if (!buf) {
218	0	goto loser;
219	0	}
220
221	2.36k	tmpbuf = buf;
222
223	2.36k	if (cn) {
224	90	PORT_Memcpy(tmpbuf, cn->data, cn->len);
225	90	tmpbuf += cn->len;
226	90	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
227	90	tmpbuf += BREAKLEN;
228	90	}
229	2.36k	if (email) {
230	367	PORT_Memcpy(tmpbuf, email->data, email->len);
231	367	tmpbuf += (email->len);
232	367	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
233	367	tmpbuf += BREAKLEN;
234	367	}
235	2.66k	for (i = ou_count - 1; i >= 0; i--) {
236	301	PORT_Memcpy(tmpbuf, orgunit[i]->data, orgunit[i]->len);
237	301	tmpbuf += (orgunit[i]->len);
238	301	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
239	301	tmpbuf += BREAKLEN;
240	301	}
241	2.36k	if (dq) {
242	9	PORT_Memcpy(tmpbuf, dq->data, dq->len);
243	9	tmpbuf += (dq->len);
244	9	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
245	9	tmpbuf += BREAKLEN;
246	9	}
247	2.36k	if (org) {
248	571	PORT_Memcpy(tmpbuf, org->data, org->len);
249	571	tmpbuf += (org->len);
250	571	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
251	571	tmpbuf += BREAKLEN;
252	571	}
253	3.04k	for (i = dc_count - 1; i >= 0; i--) {
254	675	PORT_Memcpy(tmpbuf, dc[i]->data, dc[i]->len);
255	675	tmpbuf += (dc[i]->len);
256	675	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
257	675	tmpbuf += BREAKLEN;
258	675	}
259	2.36k	first = PR_TRUE;
260	2.36k	if (loc) {
261	283	PORT_Memcpy(tmpbuf, loc->data, loc->len);
262	283	tmpbuf += (loc->len);
263	283	first = PR_FALSE;
264	283	}
265	2.36k	if (state) {
266	16	if (!first) {
267	6	PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
268	6	tmpbuf += COMMALEN;
269	6	}
270	16	PORT_Memcpy(tmpbuf, state->data, state->len);
271	16	tmpbuf += (state->len);
272	16	first = PR_FALSE;
273	16	}
274	2.36k	if (country) {
275	282	if (!first) {
276	36	PORT_Memcpy(tmpbuf, COMMA, COMMALEN);
277	36	tmpbuf += COMMALEN;
278	36	}
279	282	PORT_Memcpy(tmpbuf, country->data, country->len);
280	282	tmpbuf += (country->len);
281	282	first = PR_FALSE;
282	282	}
283	2.36k	if (!first) {
284	539	PORT_Memcpy(tmpbuf, BREAK, BREAKLEN);
285	539	tmpbuf += BREAKLEN;
286	539	}
287
288	2.36k	*tmpbuf = 0;
289
290		/* fall through and clean */
291	2.55k	loser:
292	2.55k	if (cn) {
293	90	SECITEM_FreeItem(cn, PR_TRUE);
294	90	}
295	2.55k	if (email) {
296	380	SECITEM_FreeItem(email, PR_TRUE);
297	380	}
298	2.86k	for (i = ou_count - 1; i >= 0; i--) {
299	305	SECITEM_FreeItem(orgunit[i], PR_TRUE);
300	305	}
301	2.55k	if (dq) {
302	9	SECITEM_FreeItem(dq, PR_TRUE);
303	9	}
304	2.55k	if (org) {
305	573	SECITEM_FreeItem(org, PR_TRUE);
306	573	}
307	3.23k	for (i = dc_count - 1; i >= 0; i--) {
308	680	SECITEM_FreeItem(dc[i], PR_TRUE);
309	680	}
310	2.55k	if (loc) {
311	287	SECITEM_FreeItem(loc, PR_TRUE);
312	287	}
313	2.55k	if (state) {
314	21	SECITEM_FreeItem(state, PR_TRUE);
315	21	}
316	2.55k	if (country) {
317	288	SECITEM_FreeItem(country, PR_TRUE);
318	288	}
319
320	2.55k	return (buf);
321	2.36k	}