Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjsip/sip_auth_msg.h> |
| 21 | #include <pjsip/sip_auth_parser.h> |
| 22 | #include <pjsip/sip_parser.h> |
| 23 | #include <pj/pool.h> |
| 24 | #include <pj/list.h> |
| 25 | #include <pj/string.h> |
| 26 | #include <pj/assert.h> |
| 27 | #include <pjsip/print_util.h> |
| 28 | |
| 29 | /////////////////////////////////////////////////////////////////////////////// |
| 30 | /* |
| 31 | * Authorization and Proxy-Authorization header. |
| 32 | */ |
| 33 | static pjsip_authorization_hdr* pjsip_authorization_hdr_clone( pj_pool_t *pool, |
| 34 | const pjsip_authorization_hdr *hdr); |
| 35 | static pjsip_authorization_hdr* pjsip_authorization_hdr_shallow_clone( pj_pool_t *pool, |
| 36 | const pjsip_authorization_hdr *hdr); |
| 37 | static int pjsip_authorization_hdr_print( pjsip_authorization_hdr *hdr, |
| 38 | char *buf, pj_size_t size); |
| 39 | |
| 40 | static pjsip_hdr_vptr authorization_hdr_vptr = |
| 41 | { |
| 42 | (pjsip_hdr_clone_fptr) &pjsip_authorization_hdr_clone, |
| 43 | (pjsip_hdr_clone_fptr) &pjsip_authorization_hdr_shallow_clone, |
| 44 | (pjsip_hdr_print_fptr) &pjsip_authorization_hdr_print, |
| 45 | }; |
| 46 | |
| 47 | |
| 48 | PJ_DEF(pjsip_authorization_hdr*) pjsip_authorization_hdr_create(pj_pool_t *pool) |
| 49 | { |
| 50 | pjsip_authorization_hdr *hdr; |
| 51 | hdr = PJ_POOL_ZALLOC_T(pool, pjsip_authorization_hdr); |
| 52 | init_hdr(hdr, PJSIP_H_AUTHORIZATION, &authorization_hdr_vptr); |
| 53 | pj_list_init(&hdr->credential.common.other_param); |
| 54 | return hdr; |
| 55 | } |
| 56 | |
| 57 | PJ_DEF(pjsip_proxy_authorization_hdr*) pjsip_proxy_authorization_hdr_create(pj_pool_t *pool) |
| 58 | { |
| 59 | pjsip_proxy_authorization_hdr *hdr; |
| 60 | hdr = PJ_POOL_ZALLOC_T(pool, pjsip_proxy_authorization_hdr); |
| 61 | init_hdr(hdr, PJSIP_H_PROXY_AUTHORIZATION, &authorization_hdr_vptr); |
| 62 | pj_list_init(&hdr->credential.common.other_param); |
| 63 | return hdr; |
| 64 | } |
| 65 | |
| 66 | static int print_digest_credential(pjsip_digest_credential *cred, char *buf, pj_size_t size) |
| 67 | { |
| 68 | pj_ssize_t printed; |
| 69 | char *startbuf = buf; |
| 70 | char *endbuf = buf + size; |
| 71 | const pjsip_parser_const_t *pc = pjsip_parser_const(); |
| 72 | |
| 73 | copy_advance_pair_quote_cond(buf, "username=", 9, cred->username, '"', '"'); |
| 74 | copy_advance_pair_quote_cond(buf, ", realm=", 8, cred->realm, '"', '"'); |
| 75 | copy_advance_pair_quote(buf, ", nonce=", 8, cred->nonce, '"', '"'); |
| 76 | copy_advance_pair_quote_cond(buf, ", uri=", 6, cred->uri, '"', '"'); |
| 77 | copy_advance_pair_quote(buf, ", response=", 11, cred->response, '"', '"'); |
| 78 | copy_advance_pair(buf, ", algorithm=", 12, cred->algorithm); |
| 79 | copy_advance_pair_quote_cond(buf, ", cnonce=", 9, cred->cnonce, '"', '"'); |
| 80 | copy_advance_pair_quote_cond(buf, ", opaque=", 9, cred->opaque, '"', '"'); |
| 81 | //Note: there's no dbl-quote in qop in Authorization header |
| 82 | // (unlike WWW-Authenticate) |
| 83 | //copy_advance_pair_quote_cond(buf, ", qop=", 6, cred->qop, '"', '"'); |
| 84 | copy_advance_pair(buf, ", qop=", 6, cred->qop); |
| 85 | copy_advance_pair(buf, ", nc=", 5, cred->nc); |
| 86 | |
| 87 | printed = pjsip_param_print_on(&cred->other_param, buf, endbuf-buf, |
| 88 | &pc->pjsip_TOKEN_SPEC, |
| 89 | &pc->pjsip_TOKEN_SPEC, ','); |
| 90 | if (printed < 0) |
| 91 | return -1; |
| 92 | buf += printed; |
| 93 | |
| 94 | return (int) (buf-startbuf); |
| 95 | } |
| 96 | |
| 97 | static int print_pgp_credential(pjsip_pgp_credential *cred, char *buf, pj_size_t size) |
| 98 | { |
| 99 | PJ_UNUSED_ARG(cred); |
| 100 | PJ_UNUSED_ARG(buf); |
| 101 | PJ_UNUSED_ARG(size); |
| 102 | return -1; |
| 103 | } |
| 104 | |
| 105 | static int pjsip_authorization_hdr_print( pjsip_authorization_hdr *hdr, |
| 106 | char *buf, pj_size_t size) |
| 107 | { |
| 108 | int printed; |
| 109 | char *startbuf = buf; |
| 110 | char *endbuf = buf + size; |
| 111 | |
| 112 | copy_advance(buf, hdr->name); |
| 113 | *buf++ = ':'; |
| 114 | *buf++ = ' '; |
| 115 | |
| 116 | copy_advance(buf, hdr->scheme); |
| 117 | *buf++ = ' '; |
| 118 | |
| 119 | if (pj_stricmp(&hdr->scheme, &pjsip_DIGEST_STR) == 0) |
| 120 | { |
| 121 | printed = print_digest_credential(&hdr->credential.digest, buf, endbuf - buf); |
| 122 | } |
| 123 | else if (pj_stricmp(&hdr->scheme, &pjsip_PGP_STR) == 0) |
| 124 | { |
| 125 | printed = print_pgp_credential(&hdr->credential.pgp, buf, endbuf - buf); |
| 126 | } |
| 127 | else { |
| 128 | pj_assert(0); |
| 129 | return -1; |
| 130 | } |
| 131 | |
| 132 | if (printed == -1) |
| 133 | return -1; |
| 134 | |
| 135 | buf += printed; |
| 136 | *buf = '\0'; |
| 137 | return (int)(buf-startbuf); |
| 138 | } |
| 139 | |
| 140 | static pjsip_authorization_hdr* pjsip_authorization_hdr_clone( pj_pool_t *pool, |
| 141 | const pjsip_authorization_hdr *rhs) |
| 142 | { |
| 143 | /* This function also serves Proxy-Authorization header. */ |
| 144 | pjsip_authorization_hdr *hdr; |
| 145 | if (rhs->type == PJSIP_H_AUTHORIZATION) |
| 146 | hdr = pjsip_authorization_hdr_create(pool); |
| 147 | else |
| 148 | hdr = pjsip_proxy_authorization_hdr_create(pool); |
| 149 | |
| 150 | pj_strdup(pool, &hdr->scheme, &rhs->scheme); |
| 151 | |
| 152 | if (pj_stricmp2(&hdr->scheme, "digest") == 0) { |
| 153 | pj_strdup(pool, &hdr->credential.digest.username, &rhs->credential.digest.username); |
| 154 | pj_strdup(pool, &hdr->credential.digest.realm, &rhs->credential.digest.realm); |
| 155 | pj_strdup(pool, &hdr->credential.digest.nonce, &rhs->credential.digest.nonce); |
| 156 | pj_strdup(pool, &hdr->credential.digest.uri, &rhs->credential.digest.uri); |
| 157 | pj_strdup(pool, &hdr->credential.digest.response, &rhs->credential.digest.response); |
| 158 | pj_strdup(pool, &hdr->credential.digest.algorithm, &rhs->credential.digest.algorithm); |
| 159 | pj_strdup(pool, &hdr->credential.digest.cnonce, &rhs->credential.digest.cnonce); |
| 160 | pj_strdup(pool, &hdr->credential.digest.opaque, &rhs->credential.digest.opaque); |
| 161 | pj_strdup(pool, &hdr->credential.digest.qop, &rhs->credential.digest.qop); |
| 162 | pj_strdup(pool, &hdr->credential.digest.nc, &rhs->credential.digest.nc); |
| 163 | pjsip_param_clone(pool, &hdr->credential.digest.other_param, &rhs->credential.digest.other_param); |
| 164 | } else if (pj_stricmp2(&hdr->scheme, "pgp") == 0) { |
| 165 | pj_assert(0); |
| 166 | return NULL; |
| 167 | } else { |
| 168 | pj_assert(0); |
| 169 | return NULL; |
| 170 | } |
| 171 | |
| 172 | return hdr; |
| 173 | } |
| 174 | |
| 175 | static pjsip_authorization_hdr* |
| 176 | pjsip_authorization_hdr_shallow_clone( pj_pool_t *pool, |
| 177 | const pjsip_authorization_hdr *rhs) |
| 178 | { |
| 179 | /* This function also serves Proxy-Authorization header. */ |
| 180 | pjsip_authorization_hdr *hdr; |
| 181 | hdr = PJ_POOL_ALLOC_T(pool, pjsip_authorization_hdr); |
| 182 | pj_memcpy(hdr, rhs, sizeof(*hdr)); |
| 183 | pjsip_param_shallow_clone(pool, &hdr->credential.common.other_param, |
| 184 | &rhs->credential.common.other_param); |
| 185 | return hdr; |
| 186 | } |
| 187 | |
| 188 | |
| 189 | /////////////////////////////////////////////////////////////////////////////// |
| 190 | /* |
| 191 | * Proxy-Authenticate and WWW-Authenticate header. |
| 192 | */ |
| 193 | static int pjsip_www_authenticate_hdr_print( pjsip_www_authenticate_hdr *hdr, |
| 194 | char *buf, pj_size_t size); |
| 195 | static pjsip_www_authenticate_hdr* pjsip_www_authenticate_hdr_clone( pj_pool_t *pool, |
| 196 | const pjsip_www_authenticate_hdr *hdr); |
| 197 | static pjsip_www_authenticate_hdr* pjsip_www_authenticate_hdr_shallow_clone( pj_pool_t *pool, |
| 198 | const pjsip_www_authenticate_hdr *hdr); |
| 199 | |
| 200 | static pjsip_hdr_vptr www_authenticate_hdr_vptr = |
| 201 | { |
| 202 | (pjsip_hdr_clone_fptr) &pjsip_www_authenticate_hdr_clone, |
| 203 | (pjsip_hdr_clone_fptr) &pjsip_www_authenticate_hdr_shallow_clone, |
| 204 | (pjsip_hdr_print_fptr) &pjsip_www_authenticate_hdr_print, |
| 205 | }; |
| 206 | |
| 207 | |
| 208 | PJ_DEF(pjsip_www_authenticate_hdr*) pjsip_www_authenticate_hdr_create(pj_pool_t *pool) |
| 209 | { |
| 210 | pjsip_www_authenticate_hdr *hdr; |
| 211 | hdr = PJ_POOL_ZALLOC_T(pool, pjsip_www_authenticate_hdr); |
| 212 | init_hdr(hdr, PJSIP_H_WWW_AUTHENTICATE, &www_authenticate_hdr_vptr); |
| 213 | pj_list_init(&hdr->challenge.common.other_param); |
| 214 | return hdr; |
| 215 | } |
| 216 | |
| 217 | |
| 218 | PJ_DEF(pjsip_proxy_authenticate_hdr*) pjsip_proxy_authenticate_hdr_create(pj_pool_t *pool) |
| 219 | { |
| 220 | pjsip_proxy_authenticate_hdr *hdr; |
| 221 | hdr = PJ_POOL_ZALLOC_T(pool, pjsip_proxy_authenticate_hdr); |
| 222 | init_hdr(hdr, PJSIP_H_PROXY_AUTHENTICATE, &www_authenticate_hdr_vptr); |
| 223 | pj_list_init(&hdr->challenge.common.other_param); |
| 224 | return hdr; |
| 225 | } |
| 226 | |
| 227 | static int print_digest_challenge( pjsip_digest_challenge *chal, |
| 228 | char *buf, pj_size_t size) |
| 229 | { |
| 230 | pj_ssize_t printed; |
| 231 | char *startbuf = buf; |
| 232 | char *endbuf = buf + size; |
| 233 | const pjsip_parser_const_t *pc = pjsip_parser_const(); |
| 234 | |
| 235 | /* Allow empty realm, see http://trac.pjsip.org/repos/ticket/1061 */ |
| 236 | copy_advance_pair_quote(buf, " realm=", 7, chal->realm, '"', '"'); |
| 237 | copy_advance_pair_quote_cond(buf, ",domain=", 8, chal->domain, '"', '"'); |
| 238 | copy_advance_pair_quote_cond(buf, ",nonce=", 7, chal->nonce, '"', '"'); |
| 239 | copy_advance_pair_quote_cond(buf, ",opaque=", 8, chal->opaque, '"', '"'); |
| 240 | if (chal->stale) { |
| 241 | pj_str_t true_str = { "true", 4 }; |
| 242 | copy_advance_pair(buf, ",stale=", 7, true_str); |
| 243 | } |
| 244 | copy_advance_pair(buf, ",algorithm=", 11, chal->algorithm); |
| 245 | copy_advance_pair_quote_cond(buf, ",qop=", 5, chal->qop, '"', '"'); |
| 246 | |
| 247 | printed = pjsip_param_print_on(&chal->other_param, buf, endbuf-buf, |
| 248 | &pc->pjsip_TOKEN_SPEC, |
| 249 | &pc->pjsip_TOKEN_SPEC, ','); |
| 250 | if (printed < 0) |
| 251 | return -1; |
| 252 | buf += printed; |
| 253 | |
| 254 | return (int)(buf-startbuf); |
| 255 | } |
| 256 | |
| 257 | static int print_pgp_challenge( pjsip_pgp_challenge *chal, |
| 258 | char *buf, pj_size_t size) |
| 259 | { |
| 260 | PJ_UNUSED_ARG(chal); |
| 261 | PJ_UNUSED_ARG(buf); |
| 262 | PJ_UNUSED_ARG(size); |
| 263 | return -1; |
| 264 | } |
| 265 | |
| 266 | static int pjsip_www_authenticate_hdr_print( pjsip_www_authenticate_hdr *hdr, |
| 267 | char *buf, pj_size_t size) |
| 268 | { |
| 269 | int printed; |
| 270 | char *startbuf = buf; |
| 271 | char *endbuf = buf + size; |
| 272 | |
| 273 | copy_advance(buf, hdr->name); |
| 274 | *buf++ = ':'; |
| 275 | *buf++ = ' '; |
| 276 | |
| 277 | copy_advance(buf, hdr->scheme); |
| 278 | *buf++ = ' '; |
| 279 | |
| 280 | if (pj_stricmp2(&hdr->scheme, "digest") == 0) |
| 281 | printed = print_digest_challenge(&hdr->challenge.digest, buf, endbuf - buf); |
| 282 | else if (pj_stricmp2(&hdr->scheme, "pgp") == 0) |
| 283 | printed = print_pgp_challenge(&hdr->challenge.pgp, buf, endbuf - buf); |
| 284 | else { |
| 285 | pj_assert(0); |
| 286 | return -1; |
| 287 | } |
| 288 | |
| 289 | if (printed == -1) |
| 290 | return -1; |
| 291 | |
| 292 | buf += printed; |
| 293 | *buf = '\0'; |
| 294 | return (int)(buf-startbuf); |
| 295 | } |
| 296 | |
| 297 | static pjsip_www_authenticate_hdr* pjsip_www_authenticate_hdr_clone( pj_pool_t *pool, |
| 298 | const pjsip_www_authenticate_hdr *rhs) |
| 299 | { |
| 300 | /* This function also serves Proxy-Authenticate header. */ |
| 301 | pjsip_www_authenticate_hdr *hdr; |
| 302 | if (rhs->type == PJSIP_H_WWW_AUTHENTICATE) |
| 303 | hdr = pjsip_www_authenticate_hdr_create(pool); |
| 304 | else |
| 305 | hdr = pjsip_proxy_authenticate_hdr_create(pool); |
| 306 | |
| 307 | pj_strdup(pool, &hdr->scheme, &rhs->scheme); |
| 308 | |
| 309 | if (pj_stricmp2(&hdr->scheme, "digest") == 0) { |
| 310 | pj_strdup(pool, &hdr->challenge.digest.realm, &rhs->challenge.digest.realm); |
| 311 | pj_strdup(pool, &hdr->challenge.digest.domain, &rhs->challenge.digest.domain); |
| 312 | pj_strdup(pool, &hdr->challenge.digest.nonce, &rhs->challenge.digest.nonce); |
| 313 | pj_strdup(pool, &hdr->challenge.digest.opaque, &rhs->challenge.digest.opaque); |
| 314 | hdr->challenge.digest.stale = rhs->challenge.digest.stale; |
| 315 | pj_strdup(pool, &hdr->challenge.digest.algorithm, &rhs->challenge.digest.algorithm); |
| 316 | pj_strdup(pool, &hdr->challenge.digest.qop, &rhs->challenge.digest.qop); |
| 317 | pjsip_param_clone(pool, &hdr->challenge.digest.other_param, |
| 318 | &rhs->challenge.digest.other_param); |
| 319 | } else if (pj_stricmp2(&hdr->scheme, "pgp") == 0) { |
| 320 | pj_assert(0); |
| 321 | return NULL; |
| 322 | } else { |
| 323 | pj_assert(0); |
| 324 | return NULL; |
| 325 | } |
| 326 | |
| 327 | return hdr; |
| 328 | |
| 329 | } |
| 330 | |
| 331 | static pjsip_www_authenticate_hdr* pjsip_www_authenticate_hdr_shallow_clone( pj_pool_t *pool, |
| 332 | const pjsip_www_authenticate_hdr *rhs) |
| 333 | { |
| 334 | /* This function also serves Proxy-Authenticate header. */ |
| 335 | pjsip_www_authenticate_hdr *hdr; |
| 336 | hdr = PJ_POOL_ALLOC_T(pool, pjsip_www_authenticate_hdr); |
| 337 | pj_memcpy(hdr, rhs, sizeof(*hdr)); |
| 338 | pjsip_param_shallow_clone(pool, &hdr->challenge.common.other_param, |
| 339 | &rhs->challenge.common.other_param); |
| 340 | return hdr; |
| 341 | } |
| 342 | |
| 343 | |