Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1 | /* |
| 2 | * HTTP samples fetching |
| 3 | * |
| 4 | * Copyright 2000-2018 Willy Tarreau <w@1wt.eu> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #include <sys/types.h> |
| 14 | |
| 15 | #include <ctype.h> |
| 16 | #include <string.h> |
| 17 | #include <time.h> |
| 18 | |
| 19 | #include <common/base64.h> |
| 20 | #include <common/chunk.h> |
| 21 | #include <common/compat.h> |
| 22 | #include <common/config.h> |
| 23 | #include <common/debug.h> |
| 24 | #include <common/http.h> |
| 25 | #include <common/memory.h> |
| 26 | #include <common/standard.h> |
| 27 | #include <common/version.h> |
| 28 | |
| 29 | #include <types/global.h> |
| 30 | |
| 31 | #include <proto/arg.h> |
| 32 | #include <proto/auth.h> |
| 33 | #include <proto/http_fetch.h> |
Christopher Faulet | ef453ed | 2018-10-24 21:39:27 +0200 | [diff] [blame] | 34 | #include <proto/http_htx.h> |
| 35 | #include <proto/htx.h> |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 36 | #include <proto/log.h> |
| 37 | #include <proto/obj_type.h> |
| 38 | #include <proto/proto_http.h> |
| 39 | #include <proto/sample.h> |
| 40 | #include <proto/stream.h> |
| 41 | |
| 42 | |
| 43 | /* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */ |
| 44 | static THREAD_LOCAL struct hdr_ctx static_hdr_ctx; |
Christopher Faulet | ef453ed | 2018-10-24 21:39:27 +0200 | [diff] [blame] | 45 | static THREAD_LOCAL struct http_hdr_ctx static_http_hdr_ctx; |
| 46 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 47 | |
| 48 | /* |
| 49 | * Returns the data from Authorization header. Function may be called more |
| 50 | * than once so data is stored in txn->auth_data. When no header is found |
| 51 | * or auth method is unknown auth_method is set to HTTP_AUTH_WRONG to avoid |
| 52 | * searching again for something we are unable to find anyway. However, if |
| 53 | * the result if valid, the cache is not reused because we would risk to |
| 54 | * have the credentials overwritten by another stream in parallel. |
| 55 | */ |
| 56 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 57 | static int get_http_auth(struct sample *smp) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 58 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 59 | struct stream *s = smp->strm; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 60 | struct http_txn *txn = s->txn; |
| 61 | struct buffer auth_method; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 62 | char *h, *p; |
| 63 | int len; |
| 64 | |
| 65 | #ifdef DEBUG_AUTH |
| 66 | printf("Auth for stream %p: %d\n", s, txn->auth.method); |
| 67 | #endif |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 68 | if (txn->auth.method == HTTP_AUTH_WRONG) |
| 69 | return 0; |
| 70 | |
| 71 | txn->auth.method = HTTP_AUTH_WRONG; |
| 72 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 73 | if (IS_HTX_STRM(s) || (smp->px->mode == PR_MODE_TCP)) { |
| 74 | /* HTX version */ |
| 75 | struct htx *htx = htx_from_buf(&s->req.buf); |
| 76 | struct http_hdr_ctx ctx = { .blk = NULL }; |
| 77 | struct ist hdr; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 78 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 79 | if (txn->flags & TX_USE_PX_CONN) |
| 80 | hdr = ist("Proxy-Authorization"); |
| 81 | else |
| 82 | hdr = ist("Authorization"); |
| 83 | |
| 84 | htx = htx_from_buf(&s->req.buf); |
| 85 | ctx.blk = NULL; |
| 86 | if (!http_find_header(htx, hdr, &ctx, 0)) |
| 87 | return 0; |
| 88 | |
| 89 | p = memchr(ctx.value.ptr, ' ', ctx.value.len); |
| 90 | len = p - ctx.value.ptr; |
| 91 | if (!p || len <= 0) |
| 92 | return 0; |
| 93 | |
| 94 | if (chunk_initlen(&auth_method, ctx.value.ptr, 0, len) != 1) |
| 95 | return 0; |
| 96 | |
| 97 | chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.value.len - len - 1); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 98 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 99 | else { |
| 100 | /* LEGACY version */ |
| 101 | struct hdr_ctx ctx = { .idx = 0 }; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 102 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 103 | if (txn->flags & TX_USE_PX_CONN) { |
| 104 | h = "Proxy-Authorization"; |
| 105 | len = strlen(h); |
| 106 | } else { |
| 107 | h = "Authorization"; |
| 108 | len = strlen(h); |
| 109 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 110 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 111 | if (!http_find_header2(h, len, ci_head(&s->req), &txn->hdr_idx, &ctx)) |
| 112 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 113 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 114 | h = ctx.line + ctx.val; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 115 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 116 | p = memchr(h, ' ', ctx.vlen); |
| 117 | len = p - h; |
| 118 | if (!p || len <= 0) |
| 119 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 120 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 121 | if (chunk_initlen(&auth_method, h, 0, len) != 1) |
| 122 | return 0; |
| 123 | |
| 124 | chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1); |
| 125 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 126 | |
| 127 | if (!strncasecmp("Basic", auth_method.area, auth_method.data)) { |
| 128 | struct buffer *http_auth = get_trash_chunk(); |
| 129 | |
| 130 | len = base64dec(txn->auth.method_data.area, |
| 131 | txn->auth.method_data.data, |
| 132 | http_auth->area, global.tune.bufsize - 1); |
| 133 | |
| 134 | if (len < 0) |
| 135 | return 0; |
| 136 | |
| 137 | |
| 138 | http_auth->area[len] = '\0'; |
| 139 | |
| 140 | p = strchr(http_auth->area, ':'); |
| 141 | |
| 142 | if (!p) |
| 143 | return 0; |
| 144 | |
| 145 | txn->auth.user = http_auth->area; |
| 146 | *p = '\0'; |
| 147 | txn->auth.pass = p+1; |
| 148 | |
| 149 | txn->auth.method = HTTP_AUTH_BASIC; |
| 150 | return 1; |
| 151 | } |
| 152 | |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | /* This function ensures that the prerequisites for an L7 fetch are ready, |
| 157 | * which means that a request or response is ready. If some data is missing, |
| 158 | * a parsing attempt is made. This is useful in TCP-based ACLs which are able |
Christopher Faulet | ef453ed | 2018-10-24 21:39:27 +0200 | [diff] [blame] | 159 | * to extract data from L7. |
| 160 | * |
| 161 | * The function returns : |
| 162 | * NULL with SMP_F_MAY_CHANGE in the sample flags if some data is missing to |
| 163 | * decide whether or not an HTTP message is present ; |
| 164 | * NULL if the requested data cannot be fetched or if it is certain that |
| 165 | * we'll never have any HTTP message there ; |
| 166 | * The HTX message if ready |
| 167 | */ |
| 168 | struct htx *smp_prefetch_htx(struct sample *smp, const struct arg *args) |
| 169 | { |
| 170 | struct proxy *px = smp->px; |
| 171 | struct stream *s = smp->strm; |
| 172 | unsigned int opt = smp->opt; |
| 173 | struct http_txn *txn = NULL; |
| 174 | struct htx *htx = NULL; |
| 175 | |
| 176 | /* Note: it is possible that <s> is NULL when called before stream |
| 177 | * initialization (eg: tcp-request connection), so this function is the |
| 178 | * one responsible for guarding against this case for all HTTP users. |
| 179 | */ |
| 180 | if (!s) |
| 181 | return NULL; |
| 182 | |
| 183 | if (!s->txn) { |
| 184 | if (unlikely(!http_alloc_txn(s))) |
| 185 | return NULL; /* not enough memory */ |
| 186 | http_init_txn(s); |
| 187 | txn = s->txn; |
| 188 | } |
| 189 | |
| 190 | if (px->mode == PR_MODE_HTTP) { |
| 191 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 192 | union h1_sl sl; |
| 193 | |
| 194 | htx = htx_from_buf(&s->req.buf); |
| 195 | if (htx_is_empty(htx) || htx_get_tail_type(htx) < HTX_BLK_EOH) { |
| 196 | /* Parsing is done by the mux, just wait */ |
| 197 | smp->flags |= SMP_F_MAY_CHANGE; |
| 198 | return NULL; |
| 199 | } |
| 200 | |
| 201 | /* OK we just got a valid HTTP request. We have some |
| 202 | * minor preparation to perform so that further checks |
| 203 | * can rely on HTTP tests. |
| 204 | */ |
| 205 | if (txn) { |
| 206 | sl = http_find_stline(htx); |
| 207 | txn->meth = sl.rq.meth; |
| 208 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 209 | s->flags |= SF_REDIRECTABLE; |
| 210 | } |
| 211 | |
| 212 | /* otherwise everything's ready for the request */ |
| 213 | } |
| 214 | else { |
| 215 | htx = htx_from_buf(&s->res.buf); |
| 216 | if (htx_is_empty(htx) || htx_get_tail_type(htx) < HTX_BLK_EOH) { |
| 217 | /* Parsing is done by the mux, just wait */ |
| 218 | smp->flags |= SMP_F_MAY_CHANGE; |
| 219 | return NULL; |
| 220 | } |
| 221 | } |
| 222 | } |
| 223 | else { /* PR_MODE_TCP */ |
| 224 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 225 | struct buffer *buf; |
| 226 | struct h1m h1m; |
| 227 | struct http_hdr hdrs[MAX_HTTP_HDR]; |
| 228 | union h1_sl sl; |
| 229 | int ret; |
| 230 | |
| 231 | buf = &s->req.buf; |
| 232 | if (b_head(buf) + b_data(buf) > b_wrap(buf)) |
| 233 | b_slow_realign(buf, trash.area, 0); |
| 234 | |
| 235 | h1m_init_req(&h1m); |
| 236 | ret = h1_headers_to_hdr_list(b_head(buf), b_stop(buf), |
| 237 | hdrs, sizeof(hdrs)/sizeof(hdrs[0]), &h1m, &sl); |
| 238 | if (ret <= 0) { |
| 239 | /* Invalid or too big*/ |
| 240 | if (ret < 0 || channel_full(&s->req, global.tune.maxrewrite)) |
| 241 | return NULL; |
| 242 | |
| 243 | /* wait for a full request */ |
| 244 | smp->flags |= SMP_F_MAY_CHANGE; |
| 245 | return NULL; |
| 246 | } |
| 247 | |
| 248 | /* OK we just got a valid HTTP request. We have to |
| 249 | * convert it into an HTX message. |
| 250 | */ |
| 251 | if (unlikely(sl.rq.v.len == 0)) { |
| 252 | /* try to convert HTTP/0.9 requests to HTTP/1.0 */ |
| 253 | if (sl.rq.meth != HTTP_METH_GET || !sl.rq.u.len) |
| 254 | return NULL; |
| 255 | sl.rq.v = ist("HTTP/1.0"); |
| 256 | } |
| 257 | htx = htx_from_buf(get_trash_chunk()); |
| 258 | if (!htx_add_reqline(htx, sl) || !htx_add_all_headers(htx, hdrs)) |
| 259 | return NULL; |
| 260 | |
| 261 | if (txn) { |
| 262 | txn->meth = sl.rq.meth; |
| 263 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 264 | s->flags |= SF_REDIRECTABLE; |
| 265 | } |
| 266 | /* Ok, now everything's ready for the request */ |
| 267 | } |
| 268 | else { |
| 269 | /* Impossible, no HTTP fetch on tcp-response */ |
| 270 | return NULL; |
| 271 | } |
| 272 | } |
| 273 | |
| 274 | /* everything's OK */ |
| 275 | smp->data.u.sint = 1; |
| 276 | return htx; |
| 277 | } |
| 278 | |
| 279 | /* This function ensures that the prerequisites for an L7 fetch are ready, |
| 280 | * which means that a request or response is ready. If some data is missing, |
| 281 | * a parsing attempt is made. This is useful in TCP-based ACLs which are able |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 282 | * to extract data from L7. If <req_vol> is non-null during a request prefetch, |
| 283 | * another test is made to ensure the required information is not gone. |
| 284 | * |
| 285 | * The function returns : |
| 286 | * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to |
| 287 | * decide whether or not an HTTP message is present ; |
| 288 | * 0 if the requested data cannot be fetched or if it is certain that |
| 289 | * we'll never have any HTTP message there ; |
| 290 | * 1 if an HTTP message is ready |
| 291 | */ |
| 292 | int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt, |
| 293 | const struct arg *args, struct sample *smp, int req_vol) |
| 294 | { |
| 295 | struct http_txn *txn; |
| 296 | struct http_msg *msg; |
| 297 | |
| 298 | /* Note: it is possible that <s> is NULL when called before stream |
| 299 | * initialization (eg: tcp-request connection), so this function is the |
| 300 | * one responsible for guarding against this case for all HTTP users. |
| 301 | */ |
| 302 | if (!s) |
| 303 | return 0; |
| 304 | |
| 305 | if (!s->txn) { |
| 306 | if (unlikely(!http_alloc_txn(s))) |
| 307 | return 0; /* not enough memory */ |
| 308 | http_init_txn(s); |
| 309 | } |
| 310 | txn = s->txn; |
| 311 | msg = &txn->req; |
| 312 | |
| 313 | /* Check for a dependency on a request */ |
| 314 | smp->data.type = SMP_T_BOOL; |
| 315 | |
| 316 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 317 | /* If the buffer does not leave enough free space at the end, |
| 318 | * we must first realign it. |
| 319 | */ |
| 320 | if (ci_head(&s->req) > b_orig(&s->req.buf) && |
| 321 | ci_head(&s->req) + ci_data(&s->req) > b_wrap(&s->req.buf) - global.tune.maxrewrite) |
| 322 | channel_slow_realign(&s->req, trash.area); |
| 323 | |
| 324 | if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) { |
| 325 | if (msg->msg_state == HTTP_MSG_ERROR) |
| 326 | return 0; |
| 327 | |
| 328 | /* Try to decode HTTP request */ |
| 329 | if (likely(msg->next < ci_data(&s->req))) |
| 330 | http_msg_analyzer(msg, &txn->hdr_idx); |
| 331 | |
| 332 | /* Still no valid request ? */ |
| 333 | if (unlikely(msg->msg_state < HTTP_MSG_BODY)) { |
| 334 | if ((msg->msg_state == HTTP_MSG_ERROR) || |
| 335 | channel_full(&s->req, global.tune.maxrewrite)) { |
| 336 | return 0; |
| 337 | } |
| 338 | /* wait for final state */ |
| 339 | smp->flags |= SMP_F_MAY_CHANGE; |
| 340 | return 0; |
| 341 | } |
| 342 | |
| 343 | /* OK we just got a valid HTTP request. We have some minor |
| 344 | * preparation to perform so that further checks can rely |
| 345 | * on HTTP tests. |
| 346 | */ |
| 347 | |
| 348 | /* If the request was parsed but was too large, we must absolutely |
| 349 | * return an error so that it is not processed. At the moment this |
| 350 | * cannot happen, but if the parsers are to change in the future, |
| 351 | * we want this check to be maintained. |
| 352 | */ |
| 353 | if (unlikely(ci_head(&s->req) + ci_data(&s->req) > |
| 354 | b_wrap(&s->req.buf) - global.tune.maxrewrite)) { |
| 355 | msg->err_state = msg->msg_state; |
| 356 | msg->msg_state = HTTP_MSG_ERROR; |
| 357 | smp->data.u.sint = 1; |
| 358 | return 1; |
| 359 | } |
| 360 | |
| 361 | txn->meth = find_http_meth(ci_head(msg->chn), msg->sl.rq.m_l); |
| 362 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 363 | s->flags |= SF_REDIRECTABLE; |
| 364 | |
| 365 | if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn)) |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) { |
| 370 | return 0; /* data might have moved and indexes changed */ |
| 371 | } |
| 372 | |
| 373 | /* otherwise everything's ready for the request */ |
| 374 | } |
| 375 | else { |
| 376 | /* Check for a dependency on a response */ |
| 377 | if (txn->rsp.msg_state < HTTP_MSG_BODY) { |
| 378 | smp->flags |= SMP_F_MAY_CHANGE; |
| 379 | return 0; |
| 380 | } |
| 381 | } |
| 382 | |
| 383 | /* everything's OK */ |
| 384 | smp->data.u.sint = 1; |
| 385 | return 1; |
| 386 | } |
| 387 | |
| 388 | /* This function fetches the method of current HTTP request and stores |
| 389 | * it in the global pattern struct as a chunk. There are two possibilities : |
| 390 | * - if the method is known (not HTTP_METH_OTHER), its identifier is stored |
| 391 | * in <len> and <ptr> is NULL ; |
| 392 | * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and |
| 393 | * <len> to its length. |
| 394 | * This is intended to be used with pat_match_meth() only. |
| 395 | */ |
| 396 | static int smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 397 | { |
| 398 | int meth; |
| 399 | struct http_txn *txn; |
| 400 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 401 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 402 | /* HTX version */ |
| 403 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 404 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 405 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 406 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 407 | |
| 408 | txn = smp->strm->txn; |
| 409 | meth = txn->meth; |
| 410 | smp->data.type = SMP_T_METH; |
| 411 | smp->data.u.meth.meth = meth; |
| 412 | if (meth == HTTP_METH_OTHER) { |
| 413 | union h1_sl sl; |
| 414 | |
| 415 | if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE) |
| 416 | /* ensure the indexes are not affected */ |
| 417 | return 0; |
| 418 | |
| 419 | sl = http_find_stline(htx); |
| 420 | smp->flags |= SMP_F_CONST; |
| 421 | smp->data.u.meth.str.area = sl.rq.m.ptr; |
| 422 | smp->data.u.meth.str.data = sl.rq.m.len; |
| 423 | } |
| 424 | smp->flags |= SMP_F_VOL_1ST; |
| 425 | } |
| 426 | else { |
| 427 | /* LEGACY version */ |
| 428 | CHECK_HTTP_MESSAGE_FIRST_PERM(); |
| 429 | |
| 430 | txn = smp->strm->txn; |
| 431 | meth = txn->meth; |
| 432 | smp->data.type = SMP_T_METH; |
| 433 | smp->data.u.meth.meth = meth; |
| 434 | if (meth == HTTP_METH_OTHER) { |
| 435 | if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE) |
| 436 | /* ensure the indexes are not affected */ |
| 437 | return 0; |
| 438 | smp->flags |= SMP_F_CONST; |
| 439 | smp->data.u.meth.str.data = txn->req.sl.rq.m_l; |
| 440 | smp->data.u.meth.str.area = ci_head(txn->req.chn); |
| 441 | } |
| 442 | smp->flags |= SMP_F_VOL_1ST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 443 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 444 | return 1; |
| 445 | } |
| 446 | |
| 447 | static int smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 448 | { |
| 449 | struct http_txn *txn; |
| 450 | char *ptr; |
| 451 | int len; |
| 452 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 453 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 454 | /* HTX version */ |
| 455 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 456 | union h1_sl sl; |
| 457 | |
| 458 | if (!htx) |
| 459 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 460 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 461 | sl = http_find_stline(htx); |
| 462 | len = sl.rq.v.len; |
| 463 | ptr = sl.rq.v.ptr; |
| 464 | } |
| 465 | else { |
| 466 | /* LEGACY version */ |
| 467 | CHECK_HTTP_MESSAGE_FIRST(); |
| 468 | |
| 469 | txn = smp->strm->txn; |
| 470 | len = txn->req.sl.rq.v_l; |
| 471 | ptr = ci_head(txn->req.chn) + txn->req.sl.rq.v; |
| 472 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 473 | |
| 474 | while ((len-- > 0) && (*ptr++ != '/')); |
| 475 | if (len <= 0) |
| 476 | return 0; |
| 477 | |
| 478 | smp->data.type = SMP_T_STR; |
| 479 | smp->data.u.str.area = ptr; |
| 480 | smp->data.u.str.data = len; |
| 481 | |
| 482 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 483 | return 1; |
| 484 | } |
| 485 | |
| 486 | static int smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 487 | { |
| 488 | struct http_txn *txn; |
| 489 | char *ptr; |
| 490 | int len; |
| 491 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 492 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 493 | /* HTX version */ |
| 494 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 495 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 496 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 497 | if (!htx) |
| 498 | return 0; |
| 499 | |
| 500 | sl = http_find_stline(htx); |
| 501 | len = sl.st.v.len; |
| 502 | ptr = sl.st.v.ptr; |
| 503 | } |
| 504 | else { |
| 505 | /* LEGACY version */ |
| 506 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 507 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 508 | txn = smp->strm->txn; |
| 509 | if (txn->rsp.msg_state < HTTP_MSG_BODY) |
| 510 | return 0; |
| 511 | |
| 512 | len = txn->rsp.sl.st.v_l; |
| 513 | ptr = ci_head(txn->rsp.chn); |
| 514 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 515 | |
| 516 | while ((len-- > 0) && (*ptr++ != '/')); |
| 517 | if (len <= 0) |
| 518 | return 0; |
| 519 | |
| 520 | smp->data.type = SMP_T_STR; |
| 521 | smp->data.u.str.area = ptr; |
| 522 | smp->data.u.str.data = len; |
| 523 | |
| 524 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 525 | return 1; |
| 526 | } |
| 527 | |
| 528 | /* 3. Check on Status Code. We manipulate integers here. */ |
| 529 | static int smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 530 | { |
| 531 | struct http_txn *txn; |
| 532 | char *ptr; |
| 533 | int len; |
| 534 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 535 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 536 | /* HTX version */ |
| 537 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 538 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 539 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 540 | if (!htx) |
| 541 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 542 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 543 | sl = http_find_stline(htx); |
| 544 | len = sl.st.c.len; |
| 545 | ptr = sl.st.c.ptr; |
| 546 | } |
| 547 | else { |
| 548 | /* LEGACY version */ |
| 549 | CHECK_HTTP_MESSAGE_FIRST(); |
| 550 | |
| 551 | txn = smp->strm->txn; |
| 552 | if (txn->rsp.msg_state < HTTP_MSG_BODY) |
| 553 | return 0; |
| 554 | |
| 555 | len = txn->rsp.sl.st.c_l; |
| 556 | ptr = ci_head(txn->rsp.chn) + txn->rsp.sl.st.c; |
| 557 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 558 | |
| 559 | smp->data.type = SMP_T_SINT; |
| 560 | smp->data.u.sint = __strl2ui(ptr, len); |
| 561 | smp->flags = SMP_F_VOL_1ST; |
| 562 | return 1; |
| 563 | } |
| 564 | |
| 565 | static int smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 566 | { |
| 567 | if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id)) |
| 568 | return 0; |
| 569 | |
| 570 | if (!smp->strm->unique_id) { |
| 571 | if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL) |
| 572 | return 0; |
| 573 | smp->strm->unique_id[0] = '\0'; |
| 574 | } |
| 575 | smp->data.u.str.data = build_logline(smp->strm, smp->strm->unique_id, |
| 576 | UNIQUEID_LEN, &smp->sess->fe->format_unique_id); |
| 577 | |
| 578 | smp->data.type = SMP_T_STR; |
| 579 | smp->data.u.str.area = smp->strm->unique_id; |
| 580 | smp->flags = SMP_F_CONST; |
| 581 | return 1; |
| 582 | } |
| 583 | |
| 584 | /* Returns a string block containing all headers including the |
| 585 | * empty line wich separes headers from the body. This is useful |
| 586 | * form some headers analysis. |
| 587 | */ |
| 588 | static int smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 589 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 590 | struct http_txn *txn; |
| 591 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 592 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 593 | /* HTX version */ |
| 594 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 595 | struct buffer *temp; |
| 596 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 597 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 598 | if (!htx) |
| 599 | return 0; |
| 600 | temp = get_trash_chunk(); |
| 601 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 602 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 603 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 604 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 605 | if (type == HTX_BLK_HDR) { |
| 606 | struct ist n = htx_get_blk_name(htx, blk); |
| 607 | struct ist v = htx_get_blk_value(htx, blk); |
| 608 | |
| 609 | if (!htx_hdr_to_str(n, v, temp)) |
| 610 | return 0; |
| 611 | } |
| 612 | else if (type == HTX_BLK_EOH) { |
| 613 | if (!chunk_memcat(temp, "\r\n", 2)) |
| 614 | return 0; |
| 615 | break; |
| 616 | } |
| 617 | } |
| 618 | smp->data.type = SMP_T_STR; |
| 619 | smp->data.u.str = *temp; |
| 620 | |
| 621 | } |
| 622 | else { |
| 623 | /* LEGACY version */ |
| 624 | struct http_msg *msg; |
| 625 | struct hdr_idx *idx; |
| 626 | |
| 627 | CHECK_HTTP_MESSAGE_FIRST(); |
| 628 | |
| 629 | txn = smp->strm->txn; |
| 630 | idx = &txn->hdr_idx; |
| 631 | msg = &txn->req; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 632 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 633 | smp->data.type = SMP_T_STR; |
| 634 | smp->data.u.str.area = ci_head(msg->chn) + hdr_idx_first_pos(idx); |
| 635 | smp->data.u.str.data = msg->eoh - hdr_idx_first_pos(idx) + 1 + |
| 636 | (ci_head(msg->chn)[msg->eoh] == '\r'); |
| 637 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 638 | return 1; |
| 639 | } |
| 640 | |
| 641 | /* Returns the header request in a length/value encoded format. |
| 642 | * This is useful for exchanges with the SPOE. |
| 643 | * |
| 644 | * A "length value" is a multibyte code encoding numbers. It uses the |
| 645 | * SPOE format. The encoding is the following: |
| 646 | * |
| 647 | * Each couple "header name" / "header value" is composed |
| 648 | * like this: |
| 649 | * "length value" "header name bytes" |
| 650 | * "length value" "header value bytes" |
| 651 | * When the last header is reached, the header name and the header |
| 652 | * value are empty. Their length are 0 |
| 653 | */ |
| 654 | static int smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 655 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 656 | struct http_txn *txn; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 657 | struct buffer *temp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 658 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 659 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 660 | /* HTX version */ |
| 661 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 662 | struct buffer *temp; |
| 663 | char *p, *end; |
| 664 | int32_t pos; |
| 665 | int ret; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 666 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 667 | if (!htx) |
| 668 | return 0; |
| 669 | temp = get_trash_chunk(); |
| 670 | p = temp->area; |
| 671 | end = temp->area + temp->size; |
| 672 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 673 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 674 | enum htx_blk_type type = htx_get_blk_type(blk); |
| 675 | struct ist n, v; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 676 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 677 | if (type == HTX_BLK_HDR) { |
| 678 | n = htx_get_blk_name(htx,blk); |
| 679 | v = htx_get_blk_value(htx, blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 680 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 681 | /* encode the header name. */ |
| 682 | ret = encode_varint(n.len, &p, end); |
| 683 | if (ret == -1) |
| 684 | return 0; |
| 685 | if (p + n.len > end) |
| 686 | return 0; |
| 687 | memcpy(p, n.ptr, n.len); |
| 688 | p += n.len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 689 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 690 | /* encode the header value. */ |
| 691 | ret = encode_varint(v.len, &p, end); |
| 692 | if (ret == -1) |
| 693 | return 0; |
| 694 | if (p + v.len > end) |
| 695 | return 0; |
| 696 | memcpy(p, v.ptr, v.len); |
| 697 | p += v.len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 698 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 699 | } |
| 700 | else if (type == HTX_BLK_EOH) { |
| 701 | /* encode the end of the header list with empty |
| 702 | * header name and header value. |
| 703 | */ |
| 704 | ret = encode_varint(0, &p, end); |
| 705 | if (ret == -1) |
| 706 | return 0; |
| 707 | ret = encode_varint(0, &p, end); |
| 708 | if (ret == -1) |
| 709 | return 0; |
| 710 | break; |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | /* Initialise sample data which will be filled. */ |
| 715 | smp->data.type = SMP_T_BIN; |
| 716 | smp->data.u.str.area = temp->area; |
| 717 | smp->data.u.str.data = p - temp->area; |
| 718 | smp->data.u.str.size = temp->size; |
| 719 | } |
| 720 | else { |
| 721 | /* LEGACY version */ |
| 722 | struct http_msg *msg; |
| 723 | struct hdr_idx *idx; |
| 724 | const char *cur_ptr, *cur_next, *p; |
| 725 | int old_idx, cur_idx; |
| 726 | struct hdr_idx_elem *cur_hdr; |
| 727 | const char *hn, *hv; |
| 728 | int hnl, hvl; |
| 729 | int ret; |
| 730 | char *buf; |
| 731 | char *end; |
| 732 | |
| 733 | CHECK_HTTP_MESSAGE_FIRST(); |
| 734 | |
| 735 | temp = get_trash_chunk(); |
| 736 | buf = temp->area; |
| 737 | end = temp->area + temp->size; |
| 738 | |
| 739 | txn = smp->strm->txn; |
| 740 | idx = &txn->hdr_idx; |
| 741 | msg = &txn->req; |
| 742 | |
| 743 | /* Build array of headers. */ |
| 744 | old_idx = 0; |
| 745 | cur_next = ci_head(msg->chn) + hdr_idx_first_pos(idx); |
| 746 | while (1) { |
| 747 | cur_idx = idx->v[old_idx].next; |
| 748 | if (!cur_idx) |
| 749 | break; |
| 750 | old_idx = cur_idx; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 751 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 752 | cur_hdr = &idx->v[cur_idx]; |
| 753 | cur_ptr = cur_next; |
| 754 | cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1; |
| 755 | |
| 756 | /* Now we have one full header at cur_ptr of len cur_hdr->len, |
| 757 | * and the next header starts at cur_next. We'll check |
| 758 | * this header in the list as well as against the default |
| 759 | * rule. |
| 760 | */ |
| 761 | |
| 762 | /* look for ': *'. */ |
| 763 | hn = cur_ptr; |
| 764 | for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++); |
| 765 | if (p >= cur_ptr+cur_hdr->len) |
| 766 | continue; |
| 767 | hnl = p - hn; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 768 | p++; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 769 | while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t')) |
| 770 | p++; |
| 771 | if (p >= cur_ptr + cur_hdr->len) |
| 772 | continue; |
| 773 | hv = p; |
| 774 | hvl = cur_ptr + cur_hdr->len-p; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 775 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 776 | /* encode the header name. */ |
| 777 | ret = encode_varint(hnl, &buf, end); |
| 778 | if (ret == -1) |
| 779 | return 0; |
| 780 | if (buf + hnl > end) |
| 781 | return 0; |
| 782 | memcpy(buf, hn, hnl); |
| 783 | buf += hnl; |
| 784 | |
| 785 | /* encode and copy the value. */ |
| 786 | ret = encode_varint(hvl, &buf, end); |
| 787 | if (ret == -1) |
| 788 | return 0; |
| 789 | if (buf + hvl > end) |
| 790 | return 0; |
| 791 | memcpy(buf, hv, hvl); |
| 792 | buf += hvl; |
| 793 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 794 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 795 | /* encode the end of the header list with empty |
| 796 | * header name and header value. |
| 797 | */ |
| 798 | ret = encode_varint(0, &buf, end); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 799 | if (ret == -1) |
| 800 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 801 | ret = encode_varint(0, &buf, end); |
| 802 | if (ret == -1) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 803 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 804 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 805 | /* Initialise sample data which will be filled. */ |
| 806 | smp->data.type = SMP_T_BIN; |
| 807 | smp->data.u.str.area = temp->area; |
| 808 | smp->data.u.str.data = buf - temp->area; |
| 809 | smp->data.u.str.size = temp->size; |
| 810 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 811 | return 1; |
| 812 | } |
| 813 | |
| 814 | /* returns the longest available part of the body. This requires that the body |
| 815 | * has been waited for using http-buffer-request. |
| 816 | */ |
| 817 | static int smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 818 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 819 | struct buffer *temp; |
| 820 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 821 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 822 | /* HTX version */ |
| 823 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 824 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 825 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 826 | if (!htx) |
| 827 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 828 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 829 | temp = get_trash_chunk(); |
| 830 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 831 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 832 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 833 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 834 | if (type == HTX_BLK_EOM || type == HTX_BLK_EOD) |
| 835 | break; |
| 836 | if (type == HTX_BLK_DATA) { |
| 837 | if (!htx_data_to_str(htx_get_blk_value(htx, blk), temp, 0)) |
| 838 | return 0; |
| 839 | } |
| 840 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 841 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 842 | smp->data.type = SMP_T_BIN; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 843 | smp->data.u.str = *temp; |
| 844 | smp->flags = SMP_F_VOL_TEST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 845 | } |
| 846 | else { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 847 | /* LEGACY version */ |
| 848 | struct http_msg *msg; |
| 849 | unsigned long len; |
| 850 | unsigned long block1; |
| 851 | char *body; |
| 852 | |
| 853 | CHECK_HTTP_MESSAGE_FIRST(); |
| 854 | |
| 855 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 856 | msg = &smp->strm->txn->req; |
| 857 | else |
| 858 | msg = &smp->strm->txn->rsp; |
| 859 | |
| 860 | len = http_body_bytes(msg); |
| 861 | body = c_ptr(msg->chn, -http_data_rewind(msg)); |
| 862 | |
| 863 | block1 = len; |
| 864 | if (block1 > b_wrap(&msg->chn->buf) - body) |
| 865 | block1 = b_wrap(&msg->chn->buf) - body; |
| 866 | |
| 867 | if (block1 == len) { |
| 868 | /* buffer is not wrapped (or empty) */ |
| 869 | smp->data.type = SMP_T_BIN; |
| 870 | smp->data.u.str.area = body; |
| 871 | smp->data.u.str.data = len; |
| 872 | smp->flags = SMP_F_VOL_TEST | SMP_F_CONST; |
| 873 | } |
| 874 | else { |
| 875 | /* buffer is wrapped, we need to defragment it */ |
| 876 | temp = get_trash_chunk(); |
| 877 | memcpy(temp->area, body, block1); |
| 878 | memcpy(temp->area + block1, b_orig(&msg->chn->buf), |
| 879 | len - block1); |
| 880 | smp->data.type = SMP_T_BIN; |
| 881 | smp->data.u.str.area = temp->area; |
| 882 | smp->data.u.str.data = len; |
| 883 | smp->flags = SMP_F_VOL_TEST; |
| 884 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 885 | } |
| 886 | return 1; |
| 887 | } |
| 888 | |
| 889 | |
| 890 | /* returns the available length of the body. This requires that the body |
| 891 | * has been waited for using http-buffer-request. |
| 892 | */ |
| 893 | static int smp_fetch_body_len(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 894 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 895 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 896 | /* HTX version */ |
| 897 | return 0; /* TODO: to be implemented */ |
| 898 | } |
| 899 | else { |
| 900 | /* LEGACY version */ |
| 901 | struct http_msg *msg; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 902 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 903 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 904 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 905 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 906 | msg = &smp->strm->txn->req; |
| 907 | else |
| 908 | msg = &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 909 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 910 | smp->data.type = SMP_T_SINT; |
| 911 | smp->data.u.sint = http_body_bytes(msg); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 912 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 913 | smp->flags = SMP_F_VOL_TEST; |
| 914 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 915 | return 1; |
| 916 | } |
| 917 | |
| 918 | |
| 919 | /* returns the advertised length of the body, or the advertised size of the |
| 920 | * chunks available in the buffer. This requires that the body has been waited |
| 921 | * for using http-buffer-request. |
| 922 | */ |
| 923 | static int smp_fetch_body_size(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 924 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 925 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 926 | /* HTX version */ |
| 927 | return 0; /* TODO: to be implemented */ |
| 928 | } |
| 929 | else { |
| 930 | /* LEGACY version */ |
| 931 | struct http_msg *msg; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 932 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 933 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 934 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 935 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 936 | msg = &smp->strm->txn->req; |
| 937 | else |
| 938 | msg = &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 939 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 940 | smp->data.type = SMP_T_SINT; |
| 941 | smp->data.u.sint = msg->body_len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 942 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 943 | smp->flags = SMP_F_VOL_TEST; |
| 944 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 945 | return 1; |
| 946 | } |
| 947 | |
| 948 | |
| 949 | /* 4. Check on URL/URI. A pointer to the URI is stored. */ |
| 950 | static int smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 951 | { |
| 952 | struct http_txn *txn; |
| 953 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 954 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 955 | /* HTX version */ |
| 956 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 957 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 958 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 959 | if (!htx) |
| 960 | return 0; |
| 961 | sl = http_find_stline(htx); |
| 962 | smp->data.type = SMP_T_STR; |
| 963 | smp->data.u.str.area = sl.rq.u.ptr; |
| 964 | smp->data.u.str.data = sl.rq.u.len; |
| 965 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 966 | } |
| 967 | else { |
| 968 | /* LEGACY version */ |
| 969 | CHECK_HTTP_MESSAGE_FIRST(); |
| 970 | |
| 971 | txn = smp->strm->txn; |
| 972 | smp->data.type = SMP_T_STR; |
| 973 | smp->data.u.str.data = txn->req.sl.rq.u_l; |
| 974 | smp->data.u.str.area = ci_head(txn->req.chn) + txn->req.sl.rq.u; |
| 975 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 976 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 977 | return 1; |
| 978 | } |
| 979 | |
| 980 | static int smp_fetch_url_ip(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 981 | { |
| 982 | struct http_txn *txn; |
| 983 | struct sockaddr_storage addr; |
| 984 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 985 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 986 | /* HTX version */ |
| 987 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 988 | union h1_sl sl; |
| 989 | |
| 990 | if (!htx) |
| 991 | return 0; |
| 992 | sl = http_find_stline(htx); |
| 993 | url2sa(sl.rq.u.ptr, sl.rq.u.len, &addr, NULL); |
| 994 | } |
| 995 | else { |
| 996 | /* LEGACY version */ |
| 997 | CHECK_HTTP_MESSAGE_FIRST(); |
| 998 | |
| 999 | txn = smp->strm->txn; |
| 1000 | url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL); |
| 1001 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1002 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1003 | if (((struct sockaddr_in *)&addr)->sin_family != AF_INET) |
| 1004 | return 0; |
| 1005 | |
| 1006 | smp->data.type = SMP_T_IPV4; |
| 1007 | smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr; |
| 1008 | smp->flags = 0; |
| 1009 | return 1; |
| 1010 | } |
| 1011 | |
| 1012 | static int smp_fetch_url_port(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1013 | { |
| 1014 | struct http_txn *txn; |
| 1015 | struct sockaddr_storage addr; |
| 1016 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1017 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1018 | /* HTX version */ |
| 1019 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1020 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1021 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1022 | if (!htx) |
| 1023 | return 0; |
| 1024 | sl = http_find_stline(htx); |
| 1025 | url2sa(sl.rq.u.ptr, sl.rq.u.len, &addr, NULL); |
| 1026 | } |
| 1027 | else { |
| 1028 | /* LEGACY version */ |
| 1029 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1030 | |
| 1031 | txn = smp->strm->txn; |
| 1032 | url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL); |
| 1033 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1034 | if (((struct sockaddr_in *)&addr)->sin_family != AF_INET) |
| 1035 | return 0; |
| 1036 | |
| 1037 | smp->data.type = SMP_T_SINT; |
| 1038 | smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port); |
| 1039 | smp->flags = 0; |
| 1040 | return 1; |
| 1041 | } |
| 1042 | |
| 1043 | /* Fetch an HTTP header. A pointer to the beginning of the value is returned. |
| 1044 | * Accepts an optional argument of type string containing the header field name, |
| 1045 | * and an optional argument of type signed or unsigned integer to request an |
| 1046 | * explicit occurrence of the header. Note that in the event of a missing name, |
| 1047 | * headers are considered from the first one. It does not stop on commas and |
| 1048 | * returns full lines instead (useful for User-Agent or Date for example). |
| 1049 | */ |
| 1050 | static int smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1051 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1052 | int occ = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1053 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1054 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1055 | /* HTX version */ |
| 1056 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1057 | struct http_hdr_ctx *ctx = smp->ctx.a[0]; |
| 1058 | struct ist name; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1059 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1060 | if (!ctx) { |
| 1061 | /* first call */ |
| 1062 | ctx = &static_http_hdr_ctx; |
| 1063 | ctx->blk = NULL; |
| 1064 | smp->ctx.a[0] = ctx; |
| 1065 | } |
| 1066 | |
| 1067 | if (args) { |
| 1068 | if (args[0].type != ARGT_STR) |
| 1069 | return 0; |
| 1070 | name.ptr = args[0].data.str.area; |
| 1071 | name.len = args[0].data.str.data; |
| 1072 | |
| 1073 | if (args[1].type == ARGT_SINT) |
| 1074 | occ = args[1].data.sint; |
| 1075 | } |
| 1076 | |
| 1077 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1078 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1079 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1080 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1081 | /* search for header from the beginning */ |
| 1082 | ctx->blk = NULL; |
| 1083 | |
| 1084 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1085 | /* no explicit occurrence and single fetch => last header by default */ |
| 1086 | occ = -1; |
| 1087 | |
| 1088 | if (!occ) |
| 1089 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1090 | smp->flags |= SMP_F_NOT_LAST; |
| 1091 | |
| 1092 | smp->data.type = SMP_T_STR; |
| 1093 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1094 | if (http_get_htx_fhdr(htx, name, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1095 | return 1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1096 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1097 | else { |
| 1098 | /* LEGACY version */ |
| 1099 | struct hdr_idx *idx; |
| 1100 | struct hdr_ctx *ctx = smp->ctx.a[0]; |
| 1101 | const struct http_msg *msg; |
| 1102 | const char *name_str = NULL; |
| 1103 | int name_len = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1104 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1105 | if (!ctx) { |
| 1106 | /* first call */ |
| 1107 | ctx = &static_hdr_ctx; |
| 1108 | ctx->idx = 0; |
| 1109 | smp->ctx.a[0] = ctx; |
| 1110 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1111 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1112 | if (args) { |
| 1113 | if (args[0].type != ARGT_STR) |
| 1114 | return 0; |
| 1115 | name_str = args[0].data.str.area; |
| 1116 | name_len = args[0].data.str.data; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1117 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1118 | if (args[1].type == ARGT_SINT) |
| 1119 | occ = args[1].data.sint; |
| 1120 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1121 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1122 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1123 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1124 | idx = &smp->strm->txn->hdr_idx; |
| 1125 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1126 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1127 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1128 | /* search for header from the beginning */ |
| 1129 | ctx->idx = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1130 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1131 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1132 | /* no explicit occurrence and single fetch => last header by default */ |
| 1133 | occ = -1; |
| 1134 | |
| 1135 | if (!occ) |
| 1136 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1137 | smp->flags |= SMP_F_NOT_LAST; |
| 1138 | |
| 1139 | smp->data.type = SMP_T_STR; |
| 1140 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1141 | if (http_get_fhdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1142 | return 1; |
| 1143 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1144 | smp->flags &= ~SMP_F_NOT_LAST; |
| 1145 | return 0; |
| 1146 | } |
| 1147 | |
| 1148 | /* 6. Check on HTTP header count. The number of occurrences is returned. |
| 1149 | * Accepts exactly 1 argument of type string. It does not stop on commas and |
| 1150 | * returns full lines instead (useful for User-Agent or Date for example). |
| 1151 | */ |
| 1152 | static int smp_fetch_fhdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1153 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1154 | int cnt; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1155 | |
| 1156 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1157 | /* HTX version */ |
| 1158 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1159 | struct http_hdr_ctx ctx; |
| 1160 | struct ist name; |
| 1161 | |
| 1162 | if (!htx) |
| 1163 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1164 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1165 | if (args && args->type == ARGT_STR) { |
| 1166 | name.ptr = args->data.str.area; |
| 1167 | name.len = args->data.str.data; |
| 1168 | } |
| 1169 | |
| 1170 | ctx.blk = NULL; |
| 1171 | cnt = 0; |
| 1172 | while (http_find_header(htx, name, &ctx, 1)) |
| 1173 | cnt++; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1174 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1175 | else { |
| 1176 | /* LEGACY version */ |
| 1177 | struct hdr_idx *idx; |
| 1178 | struct hdr_ctx ctx; |
| 1179 | const struct http_msg *msg; |
| 1180 | const char *name = NULL; |
| 1181 | int len = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1182 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1183 | if (args && args->type == ARGT_STR) { |
| 1184 | name = args->data.str.area; |
| 1185 | len = args->data.str.data; |
| 1186 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1187 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1188 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1189 | |
| 1190 | idx = &smp->strm->txn->hdr_idx; |
| 1191 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1192 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1193 | ctx.idx = 0; |
| 1194 | cnt = 0; |
| 1195 | while (http_find_full_header2(name, len, ci_head(msg->chn), idx, &ctx)) |
| 1196 | cnt++; |
| 1197 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1198 | |
| 1199 | smp->data.type = SMP_T_SINT; |
| 1200 | smp->data.u.sint = cnt; |
| 1201 | smp->flags = SMP_F_VOL_HDR; |
| 1202 | return 1; |
| 1203 | } |
| 1204 | |
| 1205 | static int smp_fetch_hdr_names(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1206 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1207 | struct buffer *temp; |
| 1208 | char del = ','; |
| 1209 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1210 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1211 | /* HTX version */ |
| 1212 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1213 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1214 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1215 | if (!htx) |
| 1216 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1217 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1218 | if (args && args->type == ARGT_STR) |
| 1219 | del = *args[0].data.str.area; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1220 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1221 | temp = get_trash_chunk(); |
| 1222 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 1223 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 1224 | enum htx_blk_type type = htx_get_blk_type(blk); |
| 1225 | struct ist n; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1226 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1227 | if (type == HTX_BLK_EOH) |
| 1228 | break; |
| 1229 | if (type != HTX_BLK_HDR) |
| 1230 | continue; |
| 1231 | n = htx_get_blk_name(htx, blk); |
| 1232 | |
| 1233 | if (temp->data) |
| 1234 | temp->area[temp->data++] = del; |
| 1235 | chunk_memcat(temp, n.ptr, n.len); |
| 1236 | } |
| 1237 | } |
| 1238 | else { |
| 1239 | /* LEGACY version */ |
| 1240 | struct hdr_idx *idx; |
| 1241 | struct hdr_ctx ctx; |
| 1242 | const struct http_msg *msg; |
| 1243 | |
| 1244 | if (args && args->type == ARGT_STR) |
| 1245 | del = *args[0].data.str.area; |
| 1246 | |
| 1247 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1248 | |
| 1249 | idx = &smp->strm->txn->hdr_idx; |
| 1250 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
| 1251 | |
| 1252 | temp = get_trash_chunk(); |
| 1253 | |
| 1254 | ctx.idx = 0; |
| 1255 | while (http_find_next_header(ci_head(msg->chn), idx, &ctx)) { |
| 1256 | if (temp->data) |
| 1257 | temp->area[temp->data++] = del; |
| 1258 | memcpy(temp->area + temp->data, ctx.line, ctx.del); |
| 1259 | temp->data += ctx.del; |
| 1260 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1261 | } |
| 1262 | |
| 1263 | smp->data.type = SMP_T_STR; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1264 | smp->data.u.str = *temp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1265 | smp->flags = SMP_F_VOL_HDR; |
| 1266 | return 1; |
| 1267 | } |
| 1268 | |
| 1269 | /* Fetch an HTTP header. A pointer to the beginning of the value is returned. |
| 1270 | * Accepts an optional argument of type string containing the header field name, |
| 1271 | * and an optional argument of type signed or unsigned integer to request an |
| 1272 | * explicit occurrence of the header. Note that in the event of a missing name, |
| 1273 | * headers are considered from the first one. |
| 1274 | */ |
| 1275 | static int smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1276 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1277 | int occ = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1278 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1279 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1280 | /* HTX version */ |
| 1281 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1282 | struct http_hdr_ctx *ctx = smp->ctx.a[0]; |
| 1283 | struct ist name; |
| 1284 | |
| 1285 | if (!ctx) { |
| 1286 | /* first call */ |
| 1287 | ctx = &static_http_hdr_ctx; |
| 1288 | ctx->blk = NULL; |
| 1289 | smp->ctx.a[0] = ctx; |
| 1290 | } |
| 1291 | |
| 1292 | if (args) { |
| 1293 | if (args[0].type != ARGT_STR) |
| 1294 | return 0; |
| 1295 | name.ptr = args[0].data.str.area; |
| 1296 | name.len = args[0].data.str.data; |
| 1297 | |
| 1298 | if (args[1].type == ARGT_SINT) |
| 1299 | occ = args[1].data.sint; |
| 1300 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1301 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1302 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1303 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1304 | |
| 1305 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1306 | /* search for header from the beginning */ |
| 1307 | ctx->blk = NULL; |
| 1308 | |
| 1309 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1310 | /* no explicit occurrence and single fetch => last header by default */ |
| 1311 | occ = -1; |
| 1312 | |
| 1313 | if (!occ) |
| 1314 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1315 | smp->flags |= SMP_F_NOT_LAST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1316 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1317 | smp->data.type = SMP_T_STR; |
| 1318 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1319 | if (http_get_htx_hdr(htx, name, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1320 | return 1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1321 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1322 | else { |
| 1323 | /* LEGACY version */ |
| 1324 | struct hdr_idx *idx; |
| 1325 | struct hdr_ctx *ctx = smp->ctx.a[0]; |
| 1326 | const struct http_msg *msg; |
| 1327 | const char *name_str = NULL; |
| 1328 | int name_len = 0; |
| 1329 | |
| 1330 | if (!ctx) { |
| 1331 | /* first call */ |
| 1332 | ctx = &static_hdr_ctx; |
| 1333 | ctx->idx = 0; |
| 1334 | smp->ctx.a[0] = ctx; |
| 1335 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1336 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1337 | if (args) { |
| 1338 | if (args[0].type != ARGT_STR) |
| 1339 | return 0; |
| 1340 | name_str = args[0].data.str.area; |
| 1341 | name_len = args[0].data.str.data; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1342 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1343 | if (args[1].type == ARGT_SINT) |
| 1344 | occ = args[1].data.sint; |
| 1345 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1346 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1347 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1348 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1349 | idx = &smp->strm->txn->hdr_idx; |
| 1350 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1351 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1352 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1353 | /* search for header from the beginning */ |
| 1354 | ctx->idx = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1355 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1356 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1357 | /* no explicit occurrence and single fetch => last header by default */ |
| 1358 | occ = -1; |
| 1359 | |
| 1360 | if (!occ) |
| 1361 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1362 | smp->flags |= SMP_F_NOT_LAST; |
| 1363 | |
| 1364 | smp->data.type = SMP_T_STR; |
| 1365 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1366 | if (http_get_hdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1367 | return 1; |
| 1368 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1369 | |
| 1370 | smp->flags &= ~SMP_F_NOT_LAST; |
| 1371 | return 0; |
| 1372 | } |
| 1373 | |
| 1374 | /* 6. Check on HTTP header count. The number of occurrences is returned. |
| 1375 | * Accepts exactly 1 argument of type string. |
| 1376 | */ |
| 1377 | static int smp_fetch_hdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1378 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1379 | int cnt; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1380 | |
| 1381 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1382 | /* HTX version */ |
| 1383 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1384 | struct http_hdr_ctx ctx; |
| 1385 | struct ist name; |
| 1386 | |
| 1387 | if (!htx) |
| 1388 | return 0; |
| 1389 | |
| 1390 | if (args && args->type == ARGT_STR) { |
| 1391 | name.ptr = args->data.str.area; |
| 1392 | name.len = args->data.str.data; |
| 1393 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1394 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1395 | ctx.blk = NULL; |
| 1396 | cnt = 0; |
| 1397 | while (http_find_header(htx, name, &ctx, 0)) |
| 1398 | cnt++; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1399 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1400 | else { |
| 1401 | /* LEGACY version */ |
| 1402 | struct hdr_idx *idx; |
| 1403 | struct hdr_ctx ctx; |
| 1404 | const struct http_msg *msg; |
| 1405 | const char *name = NULL; |
| 1406 | int len = 0; |
| 1407 | |
| 1408 | if (args && args->type == ARGT_STR) { |
| 1409 | name = args->data.str.area; |
| 1410 | len = args->data.str.data; |
| 1411 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1412 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1413 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1414 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1415 | idx = &smp->strm->txn->hdr_idx; |
| 1416 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1417 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1418 | ctx.idx = 0; |
| 1419 | cnt = 0; |
| 1420 | while (http_find_header2(name, len, ci_head(msg->chn), idx, &ctx)) |
| 1421 | cnt++; |
| 1422 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1423 | |
| 1424 | smp->data.type = SMP_T_SINT; |
| 1425 | smp->data.u.sint = cnt; |
| 1426 | smp->flags = SMP_F_VOL_HDR; |
| 1427 | return 1; |
| 1428 | } |
| 1429 | |
| 1430 | /* Fetch an HTTP header's integer value. The integer value is returned. It |
| 1431 | * takes a mandatory argument of type string and an optional one of type int |
| 1432 | * to designate a specific occurrence. It returns an unsigned integer, which |
| 1433 | * may or may not be appropriate for everything. |
| 1434 | */ |
| 1435 | static int smp_fetch_hdr_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1436 | { |
| 1437 | int ret = smp_fetch_hdr(args, smp, kw, private); |
| 1438 | |
| 1439 | if (ret > 0) { |
| 1440 | smp->data.type = SMP_T_SINT; |
| 1441 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 1442 | smp->data.u.str.data); |
| 1443 | } |
| 1444 | |
| 1445 | return ret; |
| 1446 | } |
| 1447 | |
| 1448 | /* Fetch an HTTP header's IP value. takes a mandatory argument of type string |
| 1449 | * and an optional one of type int to designate a specific occurrence. |
| 1450 | * It returns an IPv4 or IPv6 address. |
| 1451 | */ |
| 1452 | static int smp_fetch_hdr_ip(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1453 | { |
| 1454 | int ret; |
| 1455 | |
| 1456 | while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) { |
| 1457 | if (url2ipv4((char *) smp->data.u.str.area, &smp->data.u.ipv4)) { |
| 1458 | smp->data.type = SMP_T_IPV4; |
| 1459 | break; |
| 1460 | } else { |
| 1461 | struct buffer *temp = get_trash_chunk(); |
| 1462 | if (smp->data.u.str.data < temp->size - 1) { |
| 1463 | memcpy(temp->area, smp->data.u.str.area, |
| 1464 | smp->data.u.str.data); |
| 1465 | temp->area[smp->data.u.str.data] = '\0'; |
| 1466 | if (inet_pton(AF_INET6, temp->area, &smp->data.u.ipv6)) { |
| 1467 | smp->data.type = SMP_T_IPV6; |
| 1468 | break; |
| 1469 | } |
| 1470 | } |
| 1471 | } |
| 1472 | |
| 1473 | /* if the header doesn't match an IP address, fetch next one */ |
| 1474 | if (!(smp->flags & SMP_F_NOT_LAST)) |
| 1475 | return 0; |
| 1476 | } |
| 1477 | return ret; |
| 1478 | } |
| 1479 | |
| 1480 | /* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at |
| 1481 | * the first '/' after the possible hostname, and ends before the possible '?'. |
| 1482 | */ |
| 1483 | static int smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1484 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1485 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1486 | /* HTX version */ |
| 1487 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1488 | union h1_sl sl; |
| 1489 | struct ist path; |
| 1490 | size_t len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1491 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1492 | if (!htx) |
| 1493 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1494 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1495 | sl = http_find_stline(htx); |
| 1496 | path = http_get_path(sl.rq.u); |
| 1497 | if (!path.ptr) |
| 1498 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1499 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1500 | for (len = 0; len < path.len && *(path.ptr + len) != '?'; len++) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1501 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1502 | /* OK, we got the '/' ! */ |
| 1503 | smp->data.type = SMP_T_STR; |
| 1504 | smp->data.u.str.area = path.ptr; |
| 1505 | smp->data.u.str.data = len; |
| 1506 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1507 | } |
| 1508 | else { |
| 1509 | struct http_txn *txn; |
| 1510 | char *ptr, *end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1511 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1512 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1513 | |
| 1514 | txn = smp->strm->txn; |
| 1515 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1516 | ptr = http_txn_get_path(txn); |
| 1517 | if (!ptr) |
| 1518 | return 0; |
| 1519 | |
| 1520 | /* OK, we got the '/' ! */ |
| 1521 | smp->data.type = SMP_T_STR; |
| 1522 | smp->data.u.str.area = ptr; |
| 1523 | |
| 1524 | while (ptr < end && *ptr != '?') |
| 1525 | ptr++; |
| 1526 | |
| 1527 | smp->data.u.str.data = ptr - smp->data.u.str.area; |
| 1528 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1529 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1530 | return 1; |
| 1531 | } |
| 1532 | |
| 1533 | /* This produces a concatenation of the first occurrence of the Host header |
| 1534 | * followed by the path component if it begins with a slash ('/'). This means |
| 1535 | * that '*' will not be added, resulting in exactly the first Host entry. |
| 1536 | * If no Host header is found, then the path is returned as-is. The returned |
| 1537 | * value is stored in the trash so it does not need to be marked constant. |
| 1538 | * The returned sample is of type string. |
| 1539 | */ |
| 1540 | static int smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1541 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1542 | struct buffer *temp; |
| 1543 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1544 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1545 | /* HTX version */ |
| 1546 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1547 | union h1_sl sl; |
| 1548 | struct http_hdr_ctx ctx; |
| 1549 | struct ist path; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1550 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1551 | if (!htx) |
| 1552 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1553 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1554 | ctx.blk = NULL; |
| 1555 | if (!http_find_header(htx, ist("Host"), &ctx, 0) || !ctx.value.len) |
| 1556 | return smp_fetch_path(args, smp, kw, private); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1557 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1558 | /* OK we have the header value in ctx.value */ |
| 1559 | temp = get_trash_chunk(); |
| 1560 | chunk_memcat(temp, ctx.value.ptr, ctx.value.len); |
| 1561 | |
| 1562 | /* now retrieve the path */ |
| 1563 | sl = http_find_stline(htx); |
| 1564 | path = http_get_path(sl.rq.u); |
| 1565 | if (path.ptr) { |
| 1566 | size_t len; |
| 1567 | |
| 1568 | for (len = 0; len < path.len && *(path.ptr) != '?'; len++); |
| 1569 | if (len && *(path.ptr) == '/') |
| 1570 | chunk_memcat(temp, path.ptr, len); |
| 1571 | } |
| 1572 | |
| 1573 | smp->data.type = SMP_T_STR; |
| 1574 | smp->data.u.str = *temp; |
| 1575 | } |
| 1576 | else { |
| 1577 | /* LEGACY version */ |
| 1578 | struct http_txn *txn; |
| 1579 | char *ptr, *end, *beg; |
| 1580 | struct hdr_ctx ctx; |
| 1581 | |
| 1582 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1583 | |
| 1584 | txn = smp->strm->txn; |
| 1585 | ctx.idx = 0; |
| 1586 | if (!http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx) || !ctx.vlen) |
| 1587 | return smp_fetch_path(args, smp, kw, private); |
| 1588 | |
| 1589 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 1590 | temp = get_trash_chunk(); |
| 1591 | memcpy(temp->area, ctx.line + ctx.val, ctx.vlen); |
| 1592 | smp->data.type = SMP_T_STR; |
| 1593 | smp->data.u.str.area = temp->area; |
| 1594 | smp->data.u.str.data = ctx.vlen; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1595 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1596 | /* now retrieve the path */ |
| 1597 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1598 | beg = http_txn_get_path(txn); |
| 1599 | if (!beg) |
| 1600 | beg = end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1601 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1602 | for (ptr = beg; ptr < end && *ptr != '?'; ptr++); |
| 1603 | |
| 1604 | if (beg < ptr && *beg == '/') { |
| 1605 | memcpy(smp->data.u.str.area + smp->data.u.str.data, beg, |
| 1606 | ptr - beg); |
| 1607 | smp->data.u.str.data += ptr - beg; |
| 1608 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1609 | } |
| 1610 | |
| 1611 | smp->flags = SMP_F_VOL_1ST; |
| 1612 | return 1; |
| 1613 | } |
| 1614 | |
| 1615 | /* This produces a 32-bit hash of the concatenation of the first occurrence of |
| 1616 | * the Host header followed by the path component if it begins with a slash ('/'). |
| 1617 | * This means that '*' will not be added, resulting in exactly the first Host |
| 1618 | * entry. If no Host header is found, then the path is used. The resulting value |
| 1619 | * is hashed using the path hash followed by a full avalanche hash and provides a |
| 1620 | * 32-bit integer value. This fetch is useful for tracking per-path activity on |
| 1621 | * high-traffic sites without having to store whole paths. |
| 1622 | */ |
| 1623 | static int smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1624 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1625 | unsigned int hash = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1626 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1627 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1628 | /* HTX version */ |
| 1629 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1630 | union h1_sl sl; |
| 1631 | struct http_hdr_ctx ctx; |
| 1632 | struct ist path; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1633 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1634 | if (!htx) |
| 1635 | return 0; |
| 1636 | |
| 1637 | ctx.blk = NULL; |
| 1638 | if (!http_find_header(htx, ist("Host"), &ctx, 0)) { |
| 1639 | /* OK we have the header value in ctx.value */ |
| 1640 | while (ctx.value.len--) |
| 1641 | hash = *(ctx.value.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1642 | } |
| 1643 | |
| 1644 | /* now retrieve the path */ |
| 1645 | sl = http_find_stline(htx); |
| 1646 | path = http_get_path(sl.rq.u); |
| 1647 | if (path.ptr) { |
| 1648 | size_t len; |
| 1649 | |
| 1650 | for (len = 0; len < path.len && *(path.ptr) != '?'; len++); |
| 1651 | if (len && *(path.ptr) == '/') { |
| 1652 | while (len--) |
| 1653 | hash = *(path.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1654 | } |
| 1655 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1656 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1657 | else { |
| 1658 | /* LEGACY version */ |
| 1659 | struct http_txn *txn; |
| 1660 | struct hdr_ctx ctx; |
| 1661 | char *ptr, *beg, *end; |
| 1662 | int len; |
| 1663 | |
| 1664 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1665 | |
| 1666 | txn = smp->strm->txn; |
| 1667 | ctx.idx = 0; |
| 1668 | if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) { |
| 1669 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 1670 | ptr = ctx.line + ctx.val; |
| 1671 | len = ctx.vlen; |
| 1672 | while (len--) |
| 1673 | hash = *(ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1674 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1675 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1676 | /* now retrieve the path */ |
| 1677 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1678 | beg = http_txn_get_path(txn); |
| 1679 | if (!beg) |
| 1680 | beg = end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1681 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1682 | for (ptr = beg; ptr < end && *ptr != '?'; ptr++); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1683 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1684 | if (beg < ptr && *beg == '/') { |
| 1685 | while (beg < ptr) |
| 1686 | hash = *(beg++) + (hash << 6) + (hash << 16) - hash; |
| 1687 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1688 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1689 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1690 | hash = full_hash(hash); |
| 1691 | |
| 1692 | smp->data.type = SMP_T_SINT; |
| 1693 | smp->data.u.sint = hash; |
| 1694 | smp->flags = SMP_F_VOL_1ST; |
| 1695 | return 1; |
| 1696 | } |
| 1697 | |
| 1698 | /* This concatenates the source address with the 32-bit hash of the Host and |
| 1699 | * path as returned by smp_fetch_base32(). The idea is to have per-source and |
| 1700 | * per-path counters. The result is a binary block from 8 to 20 bytes depending |
| 1701 | * on the source address length. The path hash is stored before the address so |
| 1702 | * that in environments where IPv6 is insignificant, truncating the output to |
| 1703 | * 8 bytes would still work. |
| 1704 | */ |
| 1705 | static int smp_fetch_base32_src(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1706 | { |
| 1707 | struct buffer *temp; |
| 1708 | struct connection *cli_conn = objt_conn(smp->sess->origin); |
| 1709 | |
| 1710 | if (!cli_conn) |
| 1711 | return 0; |
| 1712 | |
| 1713 | if (!smp_fetch_base32(args, smp, kw, private)) |
| 1714 | return 0; |
| 1715 | |
| 1716 | temp = get_trash_chunk(); |
| 1717 | *(unsigned int *) temp->area = htonl(smp->data.u.sint); |
| 1718 | temp->data += sizeof(unsigned int); |
| 1719 | |
| 1720 | switch (cli_conn->addr.from.ss_family) { |
| 1721 | case AF_INET: |
| 1722 | memcpy(temp->area + temp->data, |
| 1723 | &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, |
| 1724 | 4); |
| 1725 | temp->data += 4; |
| 1726 | break; |
| 1727 | case AF_INET6: |
| 1728 | memcpy(temp->area + temp->data, |
| 1729 | &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, |
| 1730 | 16); |
| 1731 | temp->data += 16; |
| 1732 | break; |
| 1733 | default: |
| 1734 | return 0; |
| 1735 | } |
| 1736 | |
| 1737 | smp->data.u.str = *temp; |
| 1738 | smp->data.type = SMP_T_BIN; |
| 1739 | return 1; |
| 1740 | } |
| 1741 | |
| 1742 | /* Extracts the query string, which comes after the question mark '?'. If no |
| 1743 | * question mark is found, nothing is returned. Otherwise it returns a sample |
| 1744 | * of type string carrying the whole query string. |
| 1745 | */ |
| 1746 | static int smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1747 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1748 | char *ptr, *end; |
| 1749 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1750 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1751 | /* HTX version */ |
| 1752 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1753 | union h1_sl sl; |
| 1754 | |
| 1755 | if (!htx) |
| 1756 | return 0; |
| 1757 | |
| 1758 | sl = http_find_stline(htx); |
| 1759 | ptr = sl.rq.u.ptr; |
| 1760 | end = sl.rq.u.ptr + sl.rq.u.len; |
| 1761 | } |
| 1762 | else { |
| 1763 | /* LEGACY version */ |
| 1764 | struct http_txn *txn; |
| 1765 | |
| 1766 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1767 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1768 | txn = smp->strm->txn; |
| 1769 | ptr = ci_head(txn->req.chn) + txn->req.sl.rq.u; |
| 1770 | end = ptr + txn->req.sl.rq.u_l; |
| 1771 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1772 | |
| 1773 | /* look up the '?' */ |
| 1774 | do { |
| 1775 | if (ptr == end) |
| 1776 | return 0; |
| 1777 | } while (*ptr++ != '?'); |
| 1778 | |
| 1779 | smp->data.type = SMP_T_STR; |
| 1780 | smp->data.u.str.area = ptr; |
| 1781 | smp->data.u.str.data = end - ptr; |
| 1782 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1783 | return 1; |
| 1784 | } |
| 1785 | |
| 1786 | static int smp_fetch_proto_http(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1787 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1788 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1789 | /* HTX version */ |
| 1790 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1791 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1792 | if (!htx) |
| 1793 | return 0; |
| 1794 | } |
| 1795 | else { |
| 1796 | /* LEGACY version */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1797 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1798 | /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged |
| 1799 | * as a layer7 ACL, which involves automatic allocation of hdr_idx. |
| 1800 | */ |
| 1801 | CHECK_HTTP_MESSAGE_FIRST_PERM(); |
| 1802 | } |
| 1803 | smp->data.type = SMP_T_BOOL; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1804 | smp->data.u.sint = 1; |
| 1805 | return 1; |
| 1806 | } |
| 1807 | |
| 1808 | /* return a valid test if the current request is the first one on the connection */ |
| 1809 | static int smp_fetch_http_first_req(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1810 | { |
| 1811 | smp->data.type = SMP_T_BOOL; |
| 1812 | smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST); |
| 1813 | return 1; |
| 1814 | } |
| 1815 | |
| 1816 | /* Accepts exactly 1 argument of type userlist */ |
| 1817 | static int smp_fetch_http_auth(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1818 | { |
| 1819 | |
| 1820 | if (!args || args->type != ARGT_USR) |
| 1821 | return 0; |
| 1822 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1823 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1824 | /* HTX version */ |
| 1825 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1826 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1827 | if (!htx) |
| 1828 | return 0; |
| 1829 | } |
| 1830 | else { |
| 1831 | /* LEGACY version */ |
| 1832 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1833 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1834 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1835 | if (!get_http_auth(smp)) |
| 1836 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1837 | smp->data.type = SMP_T_BOOL; |
| 1838 | smp->data.u.sint = check_user(args->data.usr, smp->strm->txn->auth.user, |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1839 | smp->strm->txn->auth.pass); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1840 | return 1; |
| 1841 | } |
| 1842 | |
| 1843 | /* Accepts exactly 1 argument of type userlist */ |
| 1844 | static int smp_fetch_http_auth_grp(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1845 | { |
| 1846 | if (!args || args->type != ARGT_USR) |
| 1847 | return 0; |
| 1848 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1849 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1850 | /* HTX version */ |
| 1851 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1852 | |
| 1853 | if (!htx) |
| 1854 | return 0; |
| 1855 | } |
| 1856 | else { |
| 1857 | /* LEGACY version */ |
| 1858 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1859 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1860 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1861 | if (!get_http_auth(smp)) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1862 | return 0; |
| 1863 | |
| 1864 | /* if the user does not belong to the userlist or has a wrong password, |
| 1865 | * report that it unconditionally does not match. Otherwise we return |
| 1866 | * a string containing the username. |
| 1867 | */ |
| 1868 | if (!check_user(args->data.usr, smp->strm->txn->auth.user, |
| 1869 | smp->strm->txn->auth.pass)) |
| 1870 | return 0; |
| 1871 | |
| 1872 | /* pat_match_auth() will need the user list */ |
| 1873 | smp->ctx.a[0] = args->data.usr; |
| 1874 | |
| 1875 | smp->data.type = SMP_T_STR; |
| 1876 | smp->flags = SMP_F_CONST; |
| 1877 | smp->data.u.str.area = smp->strm->txn->auth.user; |
| 1878 | smp->data.u.str.data = strlen(smp->strm->txn->auth.user); |
| 1879 | |
| 1880 | return 1; |
| 1881 | } |
| 1882 | |
| 1883 | /* Fetch a captured HTTP request header. The index is the position of |
| 1884 | * the "capture" option in the configuration file |
| 1885 | */ |
| 1886 | static int smp_fetch_capture_req_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1887 | { |
| 1888 | struct proxy *fe = strm_fe(smp->strm); |
| 1889 | int idx; |
| 1890 | |
| 1891 | if (!args || args->type != ARGT_SINT) |
| 1892 | return 0; |
| 1893 | |
| 1894 | idx = args->data.sint; |
| 1895 | |
| 1896 | if (idx > (fe->nb_req_cap - 1) || smp->strm->req_cap == NULL || smp->strm->req_cap[idx] == NULL) |
| 1897 | return 0; |
| 1898 | |
| 1899 | smp->data.type = SMP_T_STR; |
| 1900 | smp->flags |= SMP_F_CONST; |
| 1901 | smp->data.u.str.area = smp->strm->req_cap[idx]; |
| 1902 | smp->data.u.str.data = strlen(smp->strm->req_cap[idx]); |
| 1903 | |
| 1904 | return 1; |
| 1905 | } |
| 1906 | |
| 1907 | /* Fetch a captured HTTP response header. The index is the position of |
| 1908 | * the "capture" option in the configuration file |
| 1909 | */ |
| 1910 | static int smp_fetch_capture_res_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1911 | { |
| 1912 | struct proxy *fe = strm_fe(smp->strm); |
| 1913 | int idx; |
| 1914 | |
| 1915 | if (!args || args->type != ARGT_SINT) |
| 1916 | return 0; |
| 1917 | |
| 1918 | idx = args->data.sint; |
| 1919 | |
| 1920 | if (idx > (fe->nb_rsp_cap - 1) || smp->strm->res_cap == NULL || smp->strm->res_cap[idx] == NULL) |
| 1921 | return 0; |
| 1922 | |
| 1923 | smp->data.type = SMP_T_STR; |
| 1924 | smp->flags |= SMP_F_CONST; |
| 1925 | smp->data.u.str.area = smp->strm->res_cap[idx]; |
| 1926 | smp->data.u.str.data = strlen(smp->strm->res_cap[idx]); |
| 1927 | |
| 1928 | return 1; |
| 1929 | } |
| 1930 | |
| 1931 | /* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */ |
| 1932 | static int smp_fetch_capture_req_method(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1933 | { |
| 1934 | struct buffer *temp; |
| 1935 | struct http_txn *txn = smp->strm->txn; |
| 1936 | char *ptr; |
| 1937 | |
| 1938 | if (!txn || !txn->uri) |
| 1939 | return 0; |
| 1940 | |
| 1941 | ptr = txn->uri; |
| 1942 | |
| 1943 | while (*ptr != ' ' && *ptr != '\0') /* find first space */ |
| 1944 | ptr++; |
| 1945 | |
| 1946 | temp = get_trash_chunk(); |
| 1947 | temp->area = txn->uri; |
| 1948 | temp->data = ptr - txn->uri; |
| 1949 | smp->data.u.str = *temp; |
| 1950 | smp->data.type = SMP_T_STR; |
| 1951 | smp->flags = SMP_F_CONST; |
| 1952 | |
| 1953 | return 1; |
| 1954 | |
| 1955 | } |
| 1956 | |
| 1957 | /* Extracts the path in the HTTP request, the txn->uri should be filled before the call */ |
| 1958 | static int smp_fetch_capture_req_uri(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1959 | { |
| 1960 | struct http_txn *txn = smp->strm->txn; |
| 1961 | struct ist path; |
| 1962 | const char *ptr; |
| 1963 | |
| 1964 | if (!txn || !txn->uri) |
| 1965 | return 0; |
| 1966 | |
| 1967 | ptr = txn->uri; |
| 1968 | |
| 1969 | while (*ptr != ' ' && *ptr != '\0') /* find first space */ |
| 1970 | ptr++; |
| 1971 | |
| 1972 | if (!*ptr) |
| 1973 | return 0; |
| 1974 | |
Christopher Faulet | 78337bb | 2018-11-15 14:35:18 +0100 | [diff] [blame] | 1975 | /* skip the first space and find space after URI */ |
| 1976 | path = ist2(++ptr, 0); |
| 1977 | while (*ptr != ' ' && *ptr != '\0') |
| 1978 | ptr++; |
| 1979 | path.len = ptr - path.ptr; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1980 | |
Christopher Faulet | 78337bb | 2018-11-15 14:35:18 +0100 | [diff] [blame] | 1981 | path = http_get_path(path); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1982 | if (!path.ptr) |
| 1983 | return 0; |
| 1984 | |
| 1985 | smp->data.u.str.area = path.ptr; |
| 1986 | smp->data.u.str.data = path.len; |
| 1987 | smp->data.type = SMP_T_STR; |
| 1988 | smp->flags = SMP_F_CONST; |
| 1989 | |
| 1990 | return 1; |
| 1991 | } |
| 1992 | |
| 1993 | /* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it |
| 1994 | * as a string (either "HTTP/1.0" or "HTTP/1.1"). |
| 1995 | */ |
| 1996 | static int smp_fetch_capture_req_ver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1997 | { |
| 1998 | struct http_txn *txn = smp->strm->txn; |
| 1999 | |
| 2000 | if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST) |
| 2001 | return 0; |
| 2002 | |
| 2003 | if (txn->req.flags & HTTP_MSGF_VER_11) |
| 2004 | smp->data.u.str.area = "HTTP/1.1"; |
| 2005 | else |
| 2006 | smp->data.u.str.area = "HTTP/1.0"; |
| 2007 | |
| 2008 | smp->data.u.str.data = 8; |
| 2009 | smp->data.type = SMP_T_STR; |
| 2010 | smp->flags = SMP_F_CONST; |
| 2011 | return 1; |
| 2012 | |
| 2013 | } |
| 2014 | |
| 2015 | /* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it |
| 2016 | * as a string (either "HTTP/1.0" or "HTTP/1.1"). |
| 2017 | */ |
| 2018 | static int smp_fetch_capture_res_ver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2019 | { |
| 2020 | struct http_txn *txn = smp->strm->txn; |
| 2021 | |
| 2022 | if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST) |
| 2023 | return 0; |
| 2024 | |
| 2025 | if (txn->rsp.flags & HTTP_MSGF_VER_11) |
| 2026 | smp->data.u.str.area = "HTTP/1.1"; |
| 2027 | else |
| 2028 | smp->data.u.str.area = "HTTP/1.0"; |
| 2029 | |
| 2030 | smp->data.u.str.data = 8; |
| 2031 | smp->data.type = SMP_T_STR; |
| 2032 | smp->flags = SMP_F_CONST; |
| 2033 | return 1; |
| 2034 | |
| 2035 | } |
| 2036 | |
| 2037 | /* Iterate over all cookies present in a message. The context is stored in |
| 2038 | * smp->ctx.a[0] for the in-header position, smp->ctx.a[1] for the |
| 2039 | * end-of-header-value, and smp->ctx.a[2] for the hdr_ctx. Depending on |
| 2040 | * the direction, multiple cookies may be parsed on the same line or not. |
| 2041 | * The cookie name is in args and the name length in args->data.str.len. |
| 2042 | * Accepts exactly 1 argument of type string. If the input options indicate |
| 2043 | * that no iterating is desired, then only last value is fetched if any. |
| 2044 | * The returned sample is of type CSTR. Can be used to parse cookies in other |
| 2045 | * files. |
| 2046 | */ |
| 2047 | static int smp_fetch_cookie(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2048 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2049 | int occ = 0; |
| 2050 | int found = 0; |
| 2051 | |
| 2052 | if (!args || args->type != ARGT_STR) |
| 2053 | return 0; |
| 2054 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2055 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2056 | /* HTX version */ |
| 2057 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2058 | struct http_hdr_ctx *ctx = smp->ctx.a[2]; |
| 2059 | struct ist hdr; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2060 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2061 | if (!ctx) { |
| 2062 | /* first call */ |
| 2063 | ctx = &static_http_hdr_ctx; |
| 2064 | ctx->blk = NULL; |
| 2065 | smp->ctx.a[2] = ctx; |
| 2066 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2067 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2068 | if (!htx) |
| 2069 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2070 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2071 | hdr = (((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2072 | ? ist("Cookie") |
| 2073 | : ist("Set-Cookie")); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2074 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2075 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 2076 | /* no explicit occurrence and single fetch => last cookie by default */ |
| 2077 | occ = -1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2078 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2079 | /* OK so basically here, either we want only one value and it's the |
| 2080 | * last one, or we want to iterate over all of them and we fetch the |
| 2081 | * next one. |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2082 | */ |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2083 | |
| 2084 | if (!(smp->flags & SMP_F_NOT_LAST)) { |
| 2085 | /* search for the header from the beginning, we must first initialize |
| 2086 | * the search parameters. |
| 2087 | */ |
| 2088 | smp->ctx.a[0] = NULL; |
| 2089 | ctx->blk = NULL; |
| 2090 | } |
| 2091 | |
| 2092 | smp->flags |= SMP_F_VOL_HDR; |
| 2093 | while (1) { |
| 2094 | /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */ |
| 2095 | if (!smp->ctx.a[0]) { |
| 2096 | if (!http_find_header(htx, hdr, ctx, 0)) |
| 2097 | goto out; |
| 2098 | |
| 2099 | if (ctx->value.len < args->data.str.data + 1) |
| 2100 | continue; |
| 2101 | |
| 2102 | smp->ctx.a[0] = ctx->value.ptr; |
| 2103 | smp->ctx.a[1] = smp->ctx.a[0] + ctx->value.len; |
| 2104 | } |
| 2105 | |
| 2106 | smp->data.type = SMP_T_STR; |
| 2107 | smp->flags |= SMP_F_CONST; |
| 2108 | smp->ctx.a[0] = http_extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1], |
| 2109 | args->data.str.area, args->data.str.data, |
| 2110 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2111 | &smp->data.u.str.area, |
| 2112 | &smp->data.u.str.data); |
| 2113 | if (smp->ctx.a[0]) { |
| 2114 | found = 1; |
| 2115 | if (occ >= 0) { |
| 2116 | /* one value was returned into smp->data.u.str.{str,len} */ |
| 2117 | smp->flags |= SMP_F_NOT_LAST; |
| 2118 | return 1; |
| 2119 | } |
| 2120 | } |
| 2121 | /* if we're looking for last occurrence, let's loop */ |
| 2122 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2123 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2124 | else { |
| 2125 | /* LEGACY version */ |
| 2126 | struct http_txn *txn; |
| 2127 | struct hdr_idx *idx; |
| 2128 | struct hdr_ctx *ctx = smp->ctx.a[2]; |
| 2129 | const struct http_msg *msg; |
| 2130 | const char *hdr_name; |
| 2131 | int hdr_name_len; |
| 2132 | char *sol; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2133 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2134 | if (!ctx) { |
| 2135 | /* first call */ |
| 2136 | ctx = &static_hdr_ctx; |
| 2137 | ctx->idx = 0; |
| 2138 | smp->ctx.a[2] = ctx; |
| 2139 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2140 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2141 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2142 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2143 | txn = smp->strm->txn; |
| 2144 | idx = &smp->strm->txn->hdr_idx; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2145 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2146 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 2147 | msg = &txn->req; |
| 2148 | hdr_name = "Cookie"; |
| 2149 | hdr_name_len = 6; |
| 2150 | } else { |
| 2151 | msg = &txn->rsp; |
| 2152 | hdr_name = "Set-Cookie"; |
| 2153 | hdr_name_len = 10; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2154 | } |
| 2155 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2156 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 2157 | /* no explicit occurrence and single fetch => last cookie by default */ |
| 2158 | occ = -1; |
| 2159 | |
| 2160 | /* OK so basically here, either we want only one value and it's the |
| 2161 | * last one, or we want to iterate over all of them and we fetch the |
| 2162 | * next one. |
| 2163 | */ |
| 2164 | |
| 2165 | sol = ci_head(msg->chn); |
| 2166 | if (!(smp->flags & SMP_F_NOT_LAST)) { |
| 2167 | /* search for the header from the beginning, we must first initialize |
| 2168 | * the search parameters. |
| 2169 | */ |
| 2170 | smp->ctx.a[0] = NULL; |
| 2171 | ctx->idx = 0; |
| 2172 | } |
| 2173 | |
| 2174 | smp->flags |= SMP_F_VOL_HDR; |
| 2175 | |
| 2176 | while (1) { |
| 2177 | /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */ |
| 2178 | if (!smp->ctx.a[0]) { |
| 2179 | if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx)) |
| 2180 | goto out; |
| 2181 | |
| 2182 | if (ctx->vlen < args->data.str.data + 1) |
| 2183 | continue; |
| 2184 | |
| 2185 | smp->ctx.a[0] = ctx->line + ctx->val; |
| 2186 | smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen; |
| 2187 | } |
| 2188 | |
| 2189 | smp->data.type = SMP_T_STR; |
| 2190 | smp->flags |= SMP_F_CONST; |
| 2191 | smp->ctx.a[0] = http_extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1], |
| 2192 | args->data.str.area, args->data.str.data, |
| 2193 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2194 | &smp->data.u.str.area, &smp->data.u.str.data); |
| 2195 | if (smp->ctx.a[0]) { |
| 2196 | found = 1; |
| 2197 | if (occ >= 0) { |
| 2198 | /* one value was returned into smp->data.u.str.{str,len} */ |
| 2199 | smp->flags |= SMP_F_NOT_LAST; |
| 2200 | return 1; |
| 2201 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2202 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2203 | /* if we're looking for last occurrence, let's loop */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2204 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2205 | } |
| 2206 | /* all cookie headers and values were scanned. If we're looking for the |
| 2207 | * last occurrence, we may return it now. |
| 2208 | */ |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2209 | out: |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2210 | smp->flags &= ~SMP_F_NOT_LAST; |
| 2211 | return found; |
| 2212 | } |
| 2213 | |
| 2214 | /* Iterate over all cookies present in a request to count how many occurrences |
| 2215 | * match the name in args and args->data.str.len. If <multi> is non-null, then |
| 2216 | * multiple cookies may be parsed on the same line. The returned sample is of |
| 2217 | * type UINT. Accepts exactly 1 argument of type string. |
| 2218 | */ |
| 2219 | static int smp_fetch_cookie_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2220 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2221 | char *val_beg, *val_end; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2222 | int cnt; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2223 | |
| 2224 | if (!args || args->type != ARGT_STR) |
| 2225 | return 0; |
| 2226 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2227 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2228 | /* HTX version */ |
| 2229 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2230 | struct http_hdr_ctx ctx; |
| 2231 | struct ist hdr; |
| 2232 | |
| 2233 | if (!htx) |
| 2234 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2235 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2236 | hdr = (((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2237 | ? ist("Cookie") |
| 2238 | : ist("Set-Cookie")); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2239 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2240 | val_end = val_beg = NULL; |
| 2241 | ctx.blk = NULL; |
| 2242 | cnt = 0; |
| 2243 | while (1) { |
| 2244 | /* Note: val_beg == NULL every time we need to fetch a new header */ |
| 2245 | if (!val_beg) { |
| 2246 | if (!http_find_header(htx, hdr, &ctx, 0)) |
| 2247 | break; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2248 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2249 | if (ctx.value.len < args->data.str.data + 1) |
| 2250 | continue; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2251 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2252 | val_beg = ctx.value.ptr; |
| 2253 | val_end = val_beg + ctx.value.len; |
| 2254 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2255 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2256 | smp->data.type = SMP_T_STR; |
| 2257 | smp->flags |= SMP_F_CONST; |
| 2258 | while ((val_beg = http_extract_cookie_value(val_beg, val_end, |
| 2259 | args->data.str.area, args->data.str.data, |
| 2260 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2261 | &smp->data.u.str.area, |
| 2262 | &smp->data.u.str.data))) { |
| 2263 | cnt++; |
| 2264 | } |
| 2265 | } |
| 2266 | } |
| 2267 | else { |
| 2268 | /* LEGACY version */ |
| 2269 | struct http_txn *txn; |
| 2270 | struct hdr_idx *idx; |
| 2271 | struct hdr_ctx ctx; |
| 2272 | const struct http_msg *msg; |
| 2273 | const char *hdr_name; |
| 2274 | int hdr_name_len; |
| 2275 | char *sol; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2276 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2277 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2278 | |
| 2279 | txn = smp->strm->txn; |
| 2280 | idx = &smp->strm->txn->hdr_idx; |
| 2281 | |
| 2282 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 2283 | msg = &txn->req; |
| 2284 | hdr_name = "Cookie"; |
| 2285 | hdr_name_len = 6; |
| 2286 | } else { |
| 2287 | msg = &txn->rsp; |
| 2288 | hdr_name = "Set-Cookie"; |
| 2289 | hdr_name_len = 10; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2290 | } |
| 2291 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2292 | sol = ci_head(msg->chn); |
| 2293 | val_end = val_beg = NULL; |
| 2294 | ctx.idx = 0; |
| 2295 | cnt = 0; |
| 2296 | |
| 2297 | while (1) { |
| 2298 | /* Note: val_beg == NULL every time we need to fetch a new header */ |
| 2299 | if (!val_beg) { |
| 2300 | if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx)) |
| 2301 | break; |
| 2302 | |
| 2303 | if (ctx.vlen < args->data.str.data + 1) |
| 2304 | continue; |
| 2305 | |
| 2306 | val_beg = ctx.line + ctx.val; |
| 2307 | val_end = val_beg + ctx.vlen; |
| 2308 | } |
| 2309 | |
| 2310 | smp->data.type = SMP_T_STR; |
| 2311 | smp->flags |= SMP_F_CONST; |
| 2312 | while ((val_beg = http_extract_cookie_value(val_beg, val_end, |
| 2313 | args->data.str.area, args->data.str.data, |
| 2314 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2315 | &smp->data.u.str.area, &smp->data.u.str.data))) { |
| 2316 | cnt++; |
| 2317 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2318 | } |
| 2319 | } |
| 2320 | |
| 2321 | smp->data.type = SMP_T_SINT; |
| 2322 | smp->data.u.sint = cnt; |
| 2323 | smp->flags |= SMP_F_VOL_HDR; |
| 2324 | return 1; |
| 2325 | } |
| 2326 | |
| 2327 | /* Fetch an cookie's integer value. The integer value is returned. It |
| 2328 | * takes a mandatory argument of type string. It relies on smp_fetch_cookie(). |
| 2329 | */ |
| 2330 | static int smp_fetch_cookie_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2331 | { |
| 2332 | int ret = smp_fetch_cookie(args, smp, kw, private); |
| 2333 | |
| 2334 | if (ret > 0) { |
| 2335 | smp->data.type = SMP_T_SINT; |
| 2336 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 2337 | smp->data.u.str.data); |
| 2338 | } |
| 2339 | |
| 2340 | return ret; |
| 2341 | } |
| 2342 | |
| 2343 | /************************************************************************/ |
| 2344 | /* The code below is dedicated to sample fetches */ |
| 2345 | /************************************************************************/ |
| 2346 | |
| 2347 | /* This scans a URL-encoded query string. It takes an optionally wrapping |
| 2348 | * string whose first contigous chunk has its beginning in ctx->a[0] and end |
| 2349 | * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The |
| 2350 | * pointers are updated for next iteration before leaving. |
| 2351 | */ |
| 2352 | static int smp_fetch_param(char delim, const char *name, int name_len, const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2353 | { |
| 2354 | const char *vstart, *vend; |
| 2355 | struct buffer *temp; |
| 2356 | const char **chunks = (const char **)smp->ctx.a; |
| 2357 | |
| 2358 | if (!http_find_next_url_param(chunks, name, name_len, |
| 2359 | &vstart, &vend, delim)) |
| 2360 | return 0; |
| 2361 | |
| 2362 | /* Create sample. If the value is contiguous, return the pointer as CONST, |
| 2363 | * if the value is wrapped, copy-it in a buffer. |
| 2364 | */ |
| 2365 | smp->data.type = SMP_T_STR; |
| 2366 | if (chunks[2] && |
| 2367 | vstart >= chunks[0] && vstart <= chunks[1] && |
| 2368 | vend >= chunks[2] && vend <= chunks[3]) { |
| 2369 | /* Wrapped case. */ |
| 2370 | temp = get_trash_chunk(); |
| 2371 | memcpy(temp->area, vstart, chunks[1] - vstart); |
| 2372 | memcpy(temp->area + ( chunks[1] - vstart ), chunks[2], |
| 2373 | vend - chunks[2]); |
| 2374 | smp->data.u.str.area = temp->area; |
| 2375 | smp->data.u.str.data = ( chunks[1] - vstart ) + ( vend - chunks[2] ); |
| 2376 | } else { |
| 2377 | /* Contiguous case. */ |
| 2378 | smp->data.u.str.area = (char *)vstart; |
| 2379 | smp->data.u.str.data = vend - vstart; |
| 2380 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 2381 | } |
| 2382 | |
| 2383 | /* Update context, check wrapping. */ |
| 2384 | chunks[0] = vend; |
| 2385 | if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) { |
| 2386 | chunks[1] = chunks[3]; |
| 2387 | chunks[2] = NULL; |
| 2388 | } |
| 2389 | |
| 2390 | if (chunks[0] < chunks[1]) |
| 2391 | smp->flags |= SMP_F_NOT_LAST; |
| 2392 | |
| 2393 | return 1; |
| 2394 | } |
| 2395 | |
| 2396 | /* This function iterates over each parameter of the query string. It uses |
| 2397 | * ctx->a[0] and ctx->a[1] to store the beginning and end of the current |
| 2398 | * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL. |
| 2399 | * An optional parameter name is passed in args[0], otherwise any parameter is |
| 2400 | * considered. It supports an optional delimiter argument for the beginning of |
| 2401 | * the string in args[1], which defaults to "?". |
| 2402 | */ |
| 2403 | static int smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2404 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2405 | char delim = '?'; |
| 2406 | const char *name; |
| 2407 | int name_len; |
| 2408 | |
| 2409 | if (!args || |
| 2410 | (args[0].type && args[0].type != ARGT_STR) || |
| 2411 | (args[1].type && args[1].type != ARGT_STR)) |
| 2412 | return 0; |
| 2413 | |
| 2414 | name = ""; |
| 2415 | name_len = 0; |
| 2416 | if (args->type == ARGT_STR) { |
| 2417 | name = args->data.str.area; |
| 2418 | name_len = args->data.str.data; |
| 2419 | } |
| 2420 | |
| 2421 | if (args[1].type) |
| 2422 | delim = *args[1].data.str.area; |
| 2423 | |
| 2424 | if (!smp->ctx.a[0]) { // first call, find the query string |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2425 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2426 | /* HTX version */ |
| 2427 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2428 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2429 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2430 | if (!htx) |
| 2431 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2432 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2433 | sl = http_find_stline(htx); |
| 2434 | smp->ctx.a[0] = http_find_param_list(sl.rq.u.ptr, sl.rq.u.len, delim); |
| 2435 | if (!smp->ctx.a[0]) |
| 2436 | return 0; |
| 2437 | |
| 2438 | smp->ctx.a[1] = sl.rq.u.ptr + sl.rq.u.len; |
| 2439 | } |
| 2440 | else { |
| 2441 | /* LEGACY version */ |
| 2442 | struct http_msg *msg; |
| 2443 | |
| 2444 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2445 | |
| 2446 | msg = &smp->strm->txn->req; |
| 2447 | |
| 2448 | smp->ctx.a[0] = http_find_param_list(ci_head(msg->chn) + msg->sl.rq.u, |
| 2449 | msg->sl.rq.u_l, delim); |
| 2450 | if (!smp->ctx.a[0]) |
| 2451 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2452 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2453 | smp->ctx.a[1] = ci_head(msg->chn) + msg->sl.rq.u + msg->sl.rq.u_l; |
| 2454 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2455 | |
| 2456 | /* Assume that the context is filled with NULL pointer |
| 2457 | * before the first call. |
| 2458 | * smp->ctx.a[2] = NULL; |
| 2459 | * smp->ctx.a[3] = NULL; |
| 2460 | */ |
| 2461 | } |
| 2462 | |
| 2463 | return smp_fetch_param(delim, name, name_len, args, smp, kw, private); |
| 2464 | } |
| 2465 | |
| 2466 | /* This function iterates over each parameter of the body. This requires |
| 2467 | * that the body has been waited for using http-buffer-request. It uses |
| 2468 | * ctx->a[0] and ctx->a[1] to store the beginning and end of the first |
| 2469 | * contigous part of the body, and optionally ctx->a[2..3] to reference the |
| 2470 | * optional second part if the body wraps at the end of the buffer. An optional |
| 2471 | * parameter name is passed in args[0], otherwise any parameter is considered. |
| 2472 | */ |
| 2473 | static int smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2474 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2475 | const char *name; |
| 2476 | int name_len; |
| 2477 | |
| 2478 | if (!args || (args[0].type && args[0].type != ARGT_STR)) |
| 2479 | return 0; |
| 2480 | |
| 2481 | name = ""; |
| 2482 | name_len = 0; |
| 2483 | if (args[0].type == ARGT_STR) { |
| 2484 | name = args[0].data.str.area; |
| 2485 | name_len = args[0].data.str.data; |
| 2486 | } |
| 2487 | |
| 2488 | if (!smp->ctx.a[0]) { // first call, find the query string |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2489 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2490 | /* HTX version */ |
| 2491 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2492 | struct buffer *temp; |
| 2493 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2494 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2495 | if (!htx) |
| 2496 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2497 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2498 | temp = get_trash_chunk(); |
| 2499 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 2500 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 2501 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2502 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2503 | if (type == HTX_BLK_EOM || type == HTX_BLK_EOD) |
| 2504 | break; |
| 2505 | if (type == HTX_BLK_DATA) { |
| 2506 | if (!htx_data_to_str(htx_get_blk_value(htx, blk), temp, 0)) |
| 2507 | return 0; |
| 2508 | } |
| 2509 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2510 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2511 | smp->ctx.a[0] = temp->area; |
| 2512 | smp->ctx.a[1] = temp->area + temp->data; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2513 | |
| 2514 | /* Assume that the context is filled with NULL pointer |
| 2515 | * before the first call. |
| 2516 | * smp->ctx.a[2] = NULL; |
| 2517 | * smp->ctx.a[3] = NULL; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2518 | */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2519 | } |
| 2520 | else { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2521 | /* LEGACY version */ |
| 2522 | struct http_msg *msg; |
| 2523 | unsigned long len; |
| 2524 | unsigned long block1; |
| 2525 | char *body; |
| 2526 | |
| 2527 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2528 | |
| 2529 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2530 | msg = &smp->strm->txn->req; |
| 2531 | else |
| 2532 | msg = &smp->strm->txn->rsp; |
| 2533 | |
| 2534 | len = http_body_bytes(msg); |
| 2535 | body = c_ptr(msg->chn, -http_data_rewind(msg)); |
| 2536 | |
| 2537 | block1 = len; |
| 2538 | if (block1 > b_wrap(&msg->chn->buf) - body) |
| 2539 | block1 = b_wrap(&msg->chn->buf) - body; |
| 2540 | |
| 2541 | if (block1 == len) { |
| 2542 | /* buffer is not wrapped (or empty) */ |
| 2543 | smp->ctx.a[0] = body; |
| 2544 | smp->ctx.a[1] = body + len; |
| 2545 | |
| 2546 | /* Assume that the context is filled with NULL pointer |
| 2547 | * before the first call. |
| 2548 | * smp->ctx.a[2] = NULL; |
| 2549 | * smp->ctx.a[3] = NULL; |
| 2550 | */ |
| 2551 | } |
| 2552 | else { |
| 2553 | /* buffer is wrapped, we need to defragment it */ |
| 2554 | smp->ctx.a[0] = body; |
| 2555 | smp->ctx.a[1] = body + block1; |
| 2556 | smp->ctx.a[2] = b_orig(&msg->chn->buf); |
| 2557 | smp->ctx.a[3] = b_orig(&msg->chn->buf) + ( len - block1 ); |
| 2558 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2559 | } |
| 2560 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2561 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2562 | return smp_fetch_param('&', name, name_len, args, smp, kw, private); |
| 2563 | } |
| 2564 | |
| 2565 | /* Return the signed integer value for the specified url parameter (see url_param |
| 2566 | * above). |
| 2567 | */ |
| 2568 | static int smp_fetch_url_param_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2569 | { |
| 2570 | int ret = smp_fetch_url_param(args, smp, kw, private); |
| 2571 | |
| 2572 | if (ret > 0) { |
| 2573 | smp->data.type = SMP_T_SINT; |
| 2574 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 2575 | smp->data.u.str.data); |
| 2576 | } |
| 2577 | |
| 2578 | return ret; |
| 2579 | } |
| 2580 | |
| 2581 | /* This produces a 32-bit hash of the concatenation of the first occurrence of |
| 2582 | * the Host header followed by the path component if it begins with a slash ('/'). |
| 2583 | * This means that '*' will not be added, resulting in exactly the first Host |
| 2584 | * entry. If no Host header is found, then the path is used. The resulting value |
| 2585 | * is hashed using the url hash followed by a full avalanche hash and provides a |
| 2586 | * 32-bit integer value. This fetch is useful for tracking per-URL activity on |
| 2587 | * high-traffic sites without having to store whole paths. |
| 2588 | * this differs from the base32 functions in that it includes the url parameters |
| 2589 | * as well as the path |
| 2590 | */ |
| 2591 | static int smp_fetch_url32(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2592 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2593 | unsigned int hash = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2594 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2595 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2596 | /* HTX version */ |
| 2597 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2598 | struct http_hdr_ctx ctx; |
| 2599 | union h1_sl sl; |
| 2600 | struct ist path; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2601 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2602 | if (!htx) |
| 2603 | return 0; |
| 2604 | |
| 2605 | ctx.blk = NULL; |
| 2606 | if (http_find_header(htx, ist("Host"), &ctx, 1)) { |
| 2607 | /* OK we have the header value in ctx.value */ |
| 2608 | while (ctx.value.len--) |
| 2609 | hash = *(ctx.value.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2610 | } |
| 2611 | |
| 2612 | /* now retrieve the path */ |
| 2613 | sl = http_find_stline(htx); |
| 2614 | path = http_get_path(sl.rq.u); |
| 2615 | while (path.len > 0 && *(path.ptr) != '?') { |
| 2616 | path.ptr++; |
| 2617 | path.len--; |
| 2618 | } |
| 2619 | if (path.len && *(path.ptr) == '/') { |
| 2620 | while (path.len--) |
| 2621 | hash = *(path.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2622 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2623 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2624 | else { |
| 2625 | /* LEGACY version */ |
| 2626 | struct http_txn *txn; |
| 2627 | struct hdr_ctx ctx; |
| 2628 | char *ptr, *beg, *end; |
| 2629 | int len; |
| 2630 | |
| 2631 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2632 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2633 | txn = smp->strm->txn; |
| 2634 | ctx.idx = 0; |
| 2635 | if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) { |
| 2636 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 2637 | ptr = ctx.line + ctx.val; |
| 2638 | len = ctx.vlen; |
| 2639 | while (len--) |
| 2640 | hash = *(ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2641 | } |
| 2642 | |
| 2643 | /* now retrieve the path */ |
| 2644 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 2645 | beg = http_txn_get_path(txn); |
| 2646 | if (!beg) |
| 2647 | beg = end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2648 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2649 | for (ptr = beg; ptr < end ; ptr++); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2650 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2651 | if (beg < ptr && *beg == '/') { |
| 2652 | while (beg < ptr) |
| 2653 | hash = *(beg++) + (hash << 6) + (hash << 16) - hash; |
| 2654 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2655 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2656 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2657 | hash = full_hash(hash); |
| 2658 | |
| 2659 | smp->data.type = SMP_T_SINT; |
| 2660 | smp->data.u.sint = hash; |
| 2661 | smp->flags = SMP_F_VOL_1ST; |
| 2662 | return 1; |
| 2663 | } |
| 2664 | |
| 2665 | /* This concatenates the source address with the 32-bit hash of the Host and |
| 2666 | * URL as returned by smp_fetch_base32(). The idea is to have per-source and |
| 2667 | * per-url counters. The result is a binary block from 8 to 20 bytes depending |
| 2668 | * on the source address length. The URL hash is stored before the address so |
| 2669 | * that in environments where IPv6 is insignificant, truncating the output to |
| 2670 | * 8 bytes would still work. |
| 2671 | */ |
| 2672 | static int smp_fetch_url32_src(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2673 | { |
| 2674 | struct buffer *temp; |
| 2675 | struct connection *cli_conn = objt_conn(smp->sess->origin); |
| 2676 | |
| 2677 | if (!cli_conn) |
| 2678 | return 0; |
| 2679 | |
| 2680 | if (!smp_fetch_url32(args, smp, kw, private)) |
| 2681 | return 0; |
| 2682 | |
| 2683 | temp = get_trash_chunk(); |
| 2684 | *(unsigned int *) temp->area = htonl(smp->data.u.sint); |
| 2685 | temp->data += sizeof(unsigned int); |
| 2686 | |
| 2687 | switch (cli_conn->addr.from.ss_family) { |
| 2688 | case AF_INET: |
| 2689 | memcpy(temp->area + temp->data, |
| 2690 | &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, |
| 2691 | 4); |
| 2692 | temp->data += 4; |
| 2693 | break; |
| 2694 | case AF_INET6: |
| 2695 | memcpy(temp->area + temp->data, |
| 2696 | &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, |
| 2697 | 16); |
| 2698 | temp->data += 16; |
| 2699 | break; |
| 2700 | default: |
| 2701 | return 0; |
| 2702 | } |
| 2703 | |
| 2704 | smp->data.u.str = *temp; |
| 2705 | smp->data.type = SMP_T_BIN; |
| 2706 | return 1; |
| 2707 | } |
| 2708 | |
| 2709 | /************************************************************************/ |
| 2710 | /* Other utility functions */ |
| 2711 | /************************************************************************/ |
| 2712 | |
| 2713 | /* This function is used to validate the arguments passed to any "hdr" fetch |
| 2714 | * keyword. These keywords support an optional positive or negative occurrence |
| 2715 | * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It |
| 2716 | * is assumed that the types are already the correct ones. Returns 0 on error, |
| 2717 | * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an |
| 2718 | * error message in case of error, that the caller is responsible for freeing. |
| 2719 | * The initial location must either be freeable or NULL. |
| 2720 | * Note: this function's pointer is checked from Lua. |
| 2721 | */ |
| 2722 | int val_hdr(struct arg *arg, char **err_msg) |
| 2723 | { |
| 2724 | if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) { |
| 2725 | memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY); |
| 2726 | return 0; |
| 2727 | } |
| 2728 | return 1; |
| 2729 | } |
| 2730 | |
| 2731 | /************************************************************************/ |
| 2732 | /* All supported sample fetch keywords must be declared here. */ |
| 2733 | /************************************************************************/ |
| 2734 | |
| 2735 | /* Note: must not be declared <const> as its list will be overwritten */ |
| 2736 | static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, { |
| 2737 | { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2738 | { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2739 | { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2740 | |
| 2741 | /* capture are allocated and are permanent in the stream */ |
| 2742 | { "capture.req.hdr", smp_fetch_capture_req_hdr, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2743 | |
| 2744 | /* retrieve these captures from the HTTP logs */ |
| 2745 | { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2746 | { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2747 | { "capture.req.ver", smp_fetch_capture_req_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2748 | |
| 2749 | { "capture.res.hdr", smp_fetch_capture_res_hdr, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP }, |
| 2750 | { "capture.res.ver", smp_fetch_capture_res_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2751 | |
| 2752 | /* cookie is valid in both directions (eg: for "stick ...") but cook* |
| 2753 | * are only here to match the ACL's name, are request-only and are used |
| 2754 | * for ACL compatibility only. |
| 2755 | */ |
| 2756 | { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2757 | { "cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV }, |
| 2758 | { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2759 | { "cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2760 | |
| 2761 | /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are |
| 2762 | * only here to match the ACL's name, are request-only and are used for |
| 2763 | * ACL compatibility only. |
| 2764 | */ |
| 2765 | { "hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV }, |
| 2766 | { "hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2767 | { "hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2768 | { "hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2769 | |
| 2770 | { "http_auth", smp_fetch_http_auth, ARG1(1,USR), NULL, SMP_T_BOOL, SMP_USE_HRQHV }, |
| 2771 | { "http_auth_group", smp_fetch_http_auth_grp, ARG1(1,USR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2772 | { "http_first_req", smp_fetch_http_first_req, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2773 | { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP }, |
| 2774 | { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2775 | { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2776 | |
| 2777 | /* HTTP protocol on the request path */ |
| 2778 | { "req.proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2779 | { "req_proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2780 | |
| 2781 | /* HTTP version on the request path */ |
| 2782 | { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2783 | { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2784 | |
| 2785 | { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2786 | { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2787 | { "req.body_size", smp_fetch_body_size, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2788 | { "req.body_param", smp_fetch_body_param, ARG1(0,STR), NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2789 | |
| 2790 | { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2791 | { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2792 | |
| 2793 | /* HTTP version on the response path */ |
| 2794 | { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2795 | { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2796 | |
| 2797 | /* explicit req.{cook,hdr} are used to force the fetch direction to be request-only */ |
| 2798 | { "req.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2799 | { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2800 | { "req.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2801 | |
| 2802 | { "req.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV }, |
| 2803 | { "req.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2804 | { "req.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV }, |
| 2805 | { "req.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2806 | { "req.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2807 | { "req.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2808 | { "req.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2809 | |
| 2810 | /* explicit req.{cook,hdr} are used to force the fetch direction to be response-only */ |
| 2811 | { "res.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2812 | { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2813 | { "res.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2814 | |
| 2815 | { "res.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2816 | { "res.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2817 | { "res.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2818 | { "res.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2819 | { "res.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV }, |
| 2820 | { "res.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2821 | { "res.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2822 | |
| 2823 | /* scook is valid only on the response and is used for ACL compatibility */ |
| 2824 | { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2825 | { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2826 | { "scook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2827 | { "set-cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, /* deprecated */ |
| 2828 | |
| 2829 | /* shdr is valid only on the response and is used for ACL compatibility */ |
| 2830 | { "shdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2831 | { "shdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2832 | { "shdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV }, |
| 2833 | { "shdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2834 | |
| 2835 | { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP }, |
| 2836 | { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV }, |
| 2837 | { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2838 | { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2839 | { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2840 | { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2841 | { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2842 | { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2843 | { "urlp" , smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2844 | { "urlp_val", smp_fetch_url_param_val, ARG2(0,STR,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2845 | { /* END */ }, |
| 2846 | }}; |
| 2847 | |
| 2848 | |
| 2849 | __attribute__((constructor)) |
| 2850 | static void __http_fetch_init(void) |
| 2851 | { |
| 2852 | sample_register_fetches(&sample_fetch_keywords); |
| 2853 | } |
| 2854 | |
| 2855 | /* |
| 2856 | * Local variables: |
| 2857 | * c-indent-level: 8 |
| 2858 | * c-basic-offset: 8 |
| 2859 | * End: |
| 2860 | */ |