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> |
Willy Tarreau | 0108d90 | 2018-11-25 19:14:37 +0100 | [diff] [blame] | 25 | #include <common/initcall.h> |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 26 | #include <common/memory.h> |
| 27 | #include <common/standard.h> |
| 28 | #include <common/version.h> |
| 29 | |
| 30 | #include <types/global.h> |
| 31 | |
| 32 | #include <proto/arg.h> |
| 33 | #include <proto/auth.h> |
| 34 | #include <proto/http_fetch.h> |
Christopher Faulet | ef453ed | 2018-10-24 21:39:27 +0200 | [diff] [blame] | 35 | #include <proto/http_htx.h> |
| 36 | #include <proto/htx.h> |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 37 | #include <proto/log.h> |
| 38 | #include <proto/obj_type.h> |
| 39 | #include <proto/proto_http.h> |
| 40 | #include <proto/sample.h> |
| 41 | #include <proto/stream.h> |
| 42 | |
| 43 | |
| 44 | /* this struct is used between calls to smp_fetch_hdr() or smp_fetch_cookie() */ |
| 45 | static THREAD_LOCAL struct hdr_ctx static_hdr_ctx; |
Christopher Faulet | ef453ed | 2018-10-24 21:39:27 +0200 | [diff] [blame] | 46 | static THREAD_LOCAL struct http_hdr_ctx static_http_hdr_ctx; |
| 47 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 48 | |
| 49 | /* |
| 50 | * Returns the data from Authorization header. Function may be called more |
| 51 | * than once so data is stored in txn->auth_data. When no header is found |
| 52 | * or auth method is unknown auth_method is set to HTTP_AUTH_WRONG to avoid |
| 53 | * searching again for something we are unable to find anyway. However, if |
| 54 | * the result if valid, the cache is not reused because we would risk to |
| 55 | * have the credentials overwritten by another stream in parallel. |
| 56 | */ |
| 57 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 58 | static int get_http_auth(struct sample *smp) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 59 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 60 | struct stream *s = smp->strm; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 61 | struct http_txn *txn = s->txn; |
| 62 | struct buffer auth_method; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 63 | char *h, *p; |
| 64 | int len; |
| 65 | |
| 66 | #ifdef DEBUG_AUTH |
| 67 | printf("Auth for stream %p: %d\n", s, txn->auth.method); |
| 68 | #endif |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 69 | if (txn->auth.method == HTTP_AUTH_WRONG) |
| 70 | return 0; |
| 71 | |
| 72 | txn->auth.method = HTTP_AUTH_WRONG; |
| 73 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 74 | if (IS_HTX_STRM(s) || (smp->px->mode == PR_MODE_TCP)) { |
| 75 | /* HTX version */ |
| 76 | struct htx *htx = htx_from_buf(&s->req.buf); |
| 77 | struct http_hdr_ctx ctx = { .blk = NULL }; |
| 78 | struct ist hdr; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 79 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 80 | if (txn->flags & TX_USE_PX_CONN) |
| 81 | hdr = ist("Proxy-Authorization"); |
| 82 | else |
| 83 | hdr = ist("Authorization"); |
| 84 | |
| 85 | htx = htx_from_buf(&s->req.buf); |
| 86 | ctx.blk = NULL; |
| 87 | if (!http_find_header(htx, hdr, &ctx, 0)) |
| 88 | return 0; |
| 89 | |
| 90 | p = memchr(ctx.value.ptr, ' ', ctx.value.len); |
| 91 | len = p - ctx.value.ptr; |
| 92 | if (!p || len <= 0) |
| 93 | return 0; |
| 94 | |
| 95 | if (chunk_initlen(&auth_method, ctx.value.ptr, 0, len) != 1) |
| 96 | return 0; |
| 97 | |
| 98 | 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] | 99 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 100 | else { |
| 101 | /* LEGACY version */ |
| 102 | struct hdr_ctx ctx = { .idx = 0 }; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 103 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 104 | if (txn->flags & TX_USE_PX_CONN) { |
| 105 | h = "Proxy-Authorization"; |
| 106 | len = strlen(h); |
| 107 | } else { |
| 108 | h = "Authorization"; |
| 109 | len = strlen(h); |
| 110 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 111 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 112 | if (!http_find_header2(h, len, ci_head(&s->req), &txn->hdr_idx, &ctx)) |
| 113 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 114 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 115 | h = ctx.line + ctx.val; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 116 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 117 | p = memchr(h, ' ', ctx.vlen); |
| 118 | len = p - h; |
| 119 | if (!p || len <= 0) |
| 120 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 121 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 122 | if (chunk_initlen(&auth_method, h, 0, len) != 1) |
| 123 | return 0; |
| 124 | |
| 125 | chunk_initlen(&txn->auth.method_data, p + 1, 0, ctx.vlen - len - 1); |
| 126 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 127 | |
| 128 | if (!strncasecmp("Basic", auth_method.area, auth_method.data)) { |
| 129 | struct buffer *http_auth = get_trash_chunk(); |
| 130 | |
| 131 | len = base64dec(txn->auth.method_data.area, |
| 132 | txn->auth.method_data.data, |
| 133 | http_auth->area, global.tune.bufsize - 1); |
| 134 | |
| 135 | if (len < 0) |
| 136 | return 0; |
| 137 | |
| 138 | |
| 139 | http_auth->area[len] = '\0'; |
| 140 | |
| 141 | p = strchr(http_auth->area, ':'); |
| 142 | |
| 143 | if (!p) |
| 144 | return 0; |
| 145 | |
| 146 | txn->auth.user = http_auth->area; |
| 147 | *p = '\0'; |
| 148 | txn->auth.pass = p+1; |
| 149 | |
| 150 | txn->auth.method = HTTP_AUTH_BASIC; |
| 151 | return 1; |
| 152 | } |
| 153 | |
| 154 | return 0; |
| 155 | } |
| 156 | |
| 157 | /* This function ensures that the prerequisites for an L7 fetch are ready, |
| 158 | * which means that a request or response is ready. If some data is missing, |
| 159 | * 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] | 160 | * to extract data from L7. |
| 161 | * |
| 162 | * The function returns : |
| 163 | * NULL with SMP_F_MAY_CHANGE in the sample flags if some data is missing to |
| 164 | * decide whether or not an HTTP message is present ; |
| 165 | * NULL if the requested data cannot be fetched or if it is certain that |
| 166 | * we'll never have any HTTP message there ; |
| 167 | * The HTX message if ready |
| 168 | */ |
| 169 | struct htx *smp_prefetch_htx(struct sample *smp, const struct arg *args) |
| 170 | { |
| 171 | struct proxy *px = smp->px; |
| 172 | struct stream *s = smp->strm; |
| 173 | unsigned int opt = smp->opt; |
| 174 | struct http_txn *txn = NULL; |
| 175 | struct htx *htx = NULL; |
| 176 | |
| 177 | /* Note: it is possible that <s> is NULL when called before stream |
| 178 | * initialization (eg: tcp-request connection), so this function is the |
| 179 | * one responsible for guarding against this case for all HTTP users. |
| 180 | */ |
| 181 | if (!s) |
| 182 | return NULL; |
| 183 | |
| 184 | if (!s->txn) { |
| 185 | if (unlikely(!http_alloc_txn(s))) |
| 186 | return NULL; /* not enough memory */ |
| 187 | http_init_txn(s); |
| 188 | txn = s->txn; |
| 189 | } |
| 190 | |
| 191 | if (px->mode == PR_MODE_HTTP) { |
| 192 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 193 | union h1_sl sl; |
| 194 | |
| 195 | htx = htx_from_buf(&s->req.buf); |
| 196 | if (htx_is_empty(htx) || htx_get_tail_type(htx) < HTX_BLK_EOH) { |
| 197 | /* Parsing is done by the mux, just wait */ |
| 198 | smp->flags |= SMP_F_MAY_CHANGE; |
| 199 | return NULL; |
| 200 | } |
| 201 | |
| 202 | /* OK we just got a valid HTTP request. We have some |
| 203 | * minor preparation to perform so that further checks |
| 204 | * can rely on HTTP tests. |
| 205 | */ |
| 206 | if (txn) { |
| 207 | sl = http_find_stline(htx); |
| 208 | txn->meth = sl.rq.meth; |
| 209 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 210 | s->flags |= SF_REDIRECTABLE; |
| 211 | } |
| 212 | |
| 213 | /* otherwise everything's ready for the request */ |
| 214 | } |
| 215 | else { |
| 216 | htx = htx_from_buf(&s->res.buf); |
| 217 | if (htx_is_empty(htx) || htx_get_tail_type(htx) < HTX_BLK_EOH) { |
| 218 | /* Parsing is done by the mux, just wait */ |
| 219 | smp->flags |= SMP_F_MAY_CHANGE; |
| 220 | return NULL; |
| 221 | } |
| 222 | } |
| 223 | } |
| 224 | else { /* PR_MODE_TCP */ |
| 225 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 226 | struct buffer *buf; |
| 227 | struct h1m h1m; |
| 228 | struct http_hdr hdrs[MAX_HTTP_HDR]; |
| 229 | union h1_sl sl; |
| 230 | int ret; |
| 231 | |
| 232 | buf = &s->req.buf; |
| 233 | if (b_head(buf) + b_data(buf) > b_wrap(buf)) |
| 234 | b_slow_realign(buf, trash.area, 0); |
| 235 | |
| 236 | h1m_init_req(&h1m); |
| 237 | ret = h1_headers_to_hdr_list(b_head(buf), b_stop(buf), |
| 238 | hdrs, sizeof(hdrs)/sizeof(hdrs[0]), &h1m, &sl); |
| 239 | if (ret <= 0) { |
| 240 | /* Invalid or too big*/ |
| 241 | if (ret < 0 || channel_full(&s->req, global.tune.maxrewrite)) |
| 242 | return NULL; |
| 243 | |
| 244 | /* wait for a full request */ |
| 245 | smp->flags |= SMP_F_MAY_CHANGE; |
| 246 | return NULL; |
| 247 | } |
| 248 | |
| 249 | /* OK we just got a valid HTTP request. We have to |
| 250 | * convert it into an HTX message. |
| 251 | */ |
| 252 | if (unlikely(sl.rq.v.len == 0)) { |
| 253 | /* try to convert HTTP/0.9 requests to HTTP/1.0 */ |
| 254 | if (sl.rq.meth != HTTP_METH_GET || !sl.rq.u.len) |
| 255 | return NULL; |
| 256 | sl.rq.v = ist("HTTP/1.0"); |
| 257 | } |
| 258 | htx = htx_from_buf(get_trash_chunk()); |
| 259 | if (!htx_add_reqline(htx, sl) || !htx_add_all_headers(htx, hdrs)) |
| 260 | return NULL; |
| 261 | |
| 262 | if (txn) { |
| 263 | txn->meth = sl.rq.meth; |
| 264 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 265 | s->flags |= SF_REDIRECTABLE; |
| 266 | } |
| 267 | /* Ok, now everything's ready for the request */ |
| 268 | } |
| 269 | else { |
| 270 | /* Impossible, no HTTP fetch on tcp-response */ |
| 271 | return NULL; |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | /* everything's OK */ |
| 276 | smp->data.u.sint = 1; |
| 277 | return htx; |
| 278 | } |
| 279 | |
| 280 | /* This function ensures that the prerequisites for an L7 fetch are ready, |
| 281 | * which means that a request or response is ready. If some data is missing, |
| 282 | * 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] | 283 | * to extract data from L7. If <req_vol> is non-null during a request prefetch, |
| 284 | * another test is made to ensure the required information is not gone. |
| 285 | * |
| 286 | * The function returns : |
| 287 | * 0 with SMP_F_MAY_CHANGE in the sample flags if some data is missing to |
| 288 | * decide whether or not an HTTP message is present ; |
| 289 | * 0 if the requested data cannot be fetched or if it is certain that |
| 290 | * we'll never have any HTTP message there ; |
| 291 | * 1 if an HTTP message is ready |
| 292 | */ |
| 293 | int smp_prefetch_http(struct proxy *px, struct stream *s, unsigned int opt, |
| 294 | const struct arg *args, struct sample *smp, int req_vol) |
| 295 | { |
| 296 | struct http_txn *txn; |
| 297 | struct http_msg *msg; |
| 298 | |
| 299 | /* Note: it is possible that <s> is NULL when called before stream |
| 300 | * initialization (eg: tcp-request connection), so this function is the |
| 301 | * one responsible for guarding against this case for all HTTP users. |
| 302 | */ |
| 303 | if (!s) |
| 304 | return 0; |
| 305 | |
| 306 | if (!s->txn) { |
| 307 | if (unlikely(!http_alloc_txn(s))) |
| 308 | return 0; /* not enough memory */ |
| 309 | http_init_txn(s); |
| 310 | } |
| 311 | txn = s->txn; |
| 312 | msg = &txn->req; |
| 313 | |
| 314 | /* Check for a dependency on a request */ |
| 315 | smp->data.type = SMP_T_BOOL; |
| 316 | |
| 317 | if ((opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 318 | /* If the buffer does not leave enough free space at the end, |
| 319 | * we must first realign it. |
| 320 | */ |
| 321 | if (ci_head(&s->req) > b_orig(&s->req.buf) && |
| 322 | ci_head(&s->req) + ci_data(&s->req) > b_wrap(&s->req.buf) - global.tune.maxrewrite) |
| 323 | channel_slow_realign(&s->req, trash.area); |
| 324 | |
| 325 | if (unlikely(txn->req.msg_state < HTTP_MSG_BODY)) { |
| 326 | if (msg->msg_state == HTTP_MSG_ERROR) |
| 327 | return 0; |
| 328 | |
| 329 | /* Try to decode HTTP request */ |
| 330 | if (likely(msg->next < ci_data(&s->req))) |
| 331 | http_msg_analyzer(msg, &txn->hdr_idx); |
| 332 | |
| 333 | /* Still no valid request ? */ |
| 334 | if (unlikely(msg->msg_state < HTTP_MSG_BODY)) { |
| 335 | if ((msg->msg_state == HTTP_MSG_ERROR) || |
| 336 | channel_full(&s->req, global.tune.maxrewrite)) { |
| 337 | return 0; |
| 338 | } |
| 339 | /* wait for final state */ |
| 340 | smp->flags |= SMP_F_MAY_CHANGE; |
| 341 | return 0; |
| 342 | } |
| 343 | |
| 344 | /* OK we just got a valid HTTP request. We have some minor |
| 345 | * preparation to perform so that further checks can rely |
| 346 | * on HTTP tests. |
| 347 | */ |
| 348 | |
| 349 | /* If the request was parsed but was too large, we must absolutely |
| 350 | * return an error so that it is not processed. At the moment this |
| 351 | * cannot happen, but if the parsers are to change in the future, |
| 352 | * we want this check to be maintained. |
| 353 | */ |
| 354 | if (unlikely(ci_head(&s->req) + ci_data(&s->req) > |
| 355 | b_wrap(&s->req.buf) - global.tune.maxrewrite)) { |
| 356 | msg->err_state = msg->msg_state; |
| 357 | msg->msg_state = HTTP_MSG_ERROR; |
| 358 | smp->data.u.sint = 1; |
| 359 | return 1; |
| 360 | } |
| 361 | |
| 362 | txn->meth = find_http_meth(ci_head(msg->chn), msg->sl.rq.m_l); |
| 363 | if (txn->meth == HTTP_METH_GET || txn->meth == HTTP_METH_HEAD) |
| 364 | s->flags |= SF_REDIRECTABLE; |
| 365 | |
| 366 | if (unlikely(msg->sl.rq.v_l == 0) && !http_upgrade_v09_to_v10(txn)) |
| 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | if (req_vol && txn->rsp.msg_state != HTTP_MSG_RPBEFORE) { |
| 371 | return 0; /* data might have moved and indexes changed */ |
| 372 | } |
| 373 | |
| 374 | /* otherwise everything's ready for the request */ |
| 375 | } |
| 376 | else { |
| 377 | /* Check for a dependency on a response */ |
| 378 | if (txn->rsp.msg_state < HTTP_MSG_BODY) { |
| 379 | smp->flags |= SMP_F_MAY_CHANGE; |
| 380 | return 0; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | /* everything's OK */ |
| 385 | smp->data.u.sint = 1; |
| 386 | return 1; |
| 387 | } |
| 388 | |
| 389 | /* This function fetches the method of current HTTP request and stores |
| 390 | * it in the global pattern struct as a chunk. There are two possibilities : |
| 391 | * - if the method is known (not HTTP_METH_OTHER), its identifier is stored |
| 392 | * in <len> and <ptr> is NULL ; |
| 393 | * - if the method is unknown (HTTP_METH_OTHER), <ptr> points to the text and |
| 394 | * <len> to its length. |
| 395 | * This is intended to be used with pat_match_meth() only. |
| 396 | */ |
| 397 | static int smp_fetch_meth(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 398 | { |
| 399 | int meth; |
| 400 | struct http_txn *txn; |
| 401 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 402 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 403 | /* HTX version */ |
| 404 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 405 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 406 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 407 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 408 | |
| 409 | txn = smp->strm->txn; |
| 410 | meth = txn->meth; |
| 411 | smp->data.type = SMP_T_METH; |
| 412 | smp->data.u.meth.meth = meth; |
| 413 | if (meth == HTTP_METH_OTHER) { |
| 414 | union h1_sl sl; |
| 415 | |
| 416 | if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE) |
| 417 | /* ensure the indexes are not affected */ |
| 418 | return 0; |
| 419 | |
| 420 | sl = http_find_stline(htx); |
| 421 | smp->flags |= SMP_F_CONST; |
| 422 | smp->data.u.meth.str.area = sl.rq.m.ptr; |
| 423 | smp->data.u.meth.str.data = sl.rq.m.len; |
| 424 | } |
| 425 | smp->flags |= SMP_F_VOL_1ST; |
| 426 | } |
| 427 | else { |
| 428 | /* LEGACY version */ |
| 429 | CHECK_HTTP_MESSAGE_FIRST_PERM(); |
| 430 | |
| 431 | txn = smp->strm->txn; |
| 432 | meth = txn->meth; |
| 433 | smp->data.type = SMP_T_METH; |
| 434 | smp->data.u.meth.meth = meth; |
| 435 | if (meth == HTTP_METH_OTHER) { |
| 436 | if (txn->rsp.msg_state != HTTP_MSG_RPBEFORE) |
| 437 | /* ensure the indexes are not affected */ |
| 438 | return 0; |
| 439 | smp->flags |= SMP_F_CONST; |
| 440 | smp->data.u.meth.str.data = txn->req.sl.rq.m_l; |
| 441 | smp->data.u.meth.str.area = ci_head(txn->req.chn); |
| 442 | } |
| 443 | smp->flags |= SMP_F_VOL_1ST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 444 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 445 | return 1; |
| 446 | } |
| 447 | |
| 448 | static int smp_fetch_rqver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 449 | { |
| 450 | struct http_txn *txn; |
| 451 | char *ptr; |
| 452 | int len; |
| 453 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 454 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 455 | /* HTX version */ |
| 456 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 457 | union h1_sl sl; |
| 458 | |
| 459 | if (!htx) |
| 460 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 461 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 462 | sl = http_find_stline(htx); |
| 463 | len = sl.rq.v.len; |
| 464 | ptr = sl.rq.v.ptr; |
| 465 | } |
| 466 | else { |
| 467 | /* LEGACY version */ |
| 468 | CHECK_HTTP_MESSAGE_FIRST(); |
| 469 | |
| 470 | txn = smp->strm->txn; |
| 471 | len = txn->req.sl.rq.v_l; |
| 472 | ptr = ci_head(txn->req.chn) + txn->req.sl.rq.v; |
| 473 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 474 | |
| 475 | while ((len-- > 0) && (*ptr++ != '/')); |
| 476 | if (len <= 0) |
| 477 | return 0; |
| 478 | |
| 479 | smp->data.type = SMP_T_STR; |
| 480 | smp->data.u.str.area = ptr; |
| 481 | smp->data.u.str.data = len; |
| 482 | |
| 483 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 484 | return 1; |
| 485 | } |
| 486 | |
| 487 | static int smp_fetch_stver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 488 | { |
| 489 | struct http_txn *txn; |
| 490 | char *ptr; |
| 491 | int len; |
| 492 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 493 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 494 | /* HTX version */ |
| 495 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 496 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 497 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 498 | if (!htx) |
| 499 | return 0; |
| 500 | |
| 501 | sl = http_find_stline(htx); |
| 502 | len = sl.st.v.len; |
| 503 | ptr = sl.st.v.ptr; |
| 504 | } |
| 505 | else { |
| 506 | /* LEGACY version */ |
| 507 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 508 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 509 | txn = smp->strm->txn; |
| 510 | if (txn->rsp.msg_state < HTTP_MSG_BODY) |
| 511 | return 0; |
| 512 | |
| 513 | len = txn->rsp.sl.st.v_l; |
| 514 | ptr = ci_head(txn->rsp.chn); |
| 515 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 516 | |
| 517 | while ((len-- > 0) && (*ptr++ != '/')); |
| 518 | if (len <= 0) |
| 519 | return 0; |
| 520 | |
| 521 | smp->data.type = SMP_T_STR; |
| 522 | smp->data.u.str.area = ptr; |
| 523 | smp->data.u.str.data = len; |
| 524 | |
| 525 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 526 | return 1; |
| 527 | } |
| 528 | |
| 529 | /* 3. Check on Status Code. We manipulate integers here. */ |
| 530 | static int smp_fetch_stcode(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 531 | { |
| 532 | struct http_txn *txn; |
| 533 | char *ptr; |
| 534 | int len; |
| 535 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 536 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 537 | /* HTX version */ |
| 538 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 539 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 540 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 541 | if (!htx) |
| 542 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 543 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 544 | sl = http_find_stline(htx); |
| 545 | len = sl.st.c.len; |
| 546 | ptr = sl.st.c.ptr; |
| 547 | } |
| 548 | else { |
| 549 | /* LEGACY version */ |
| 550 | CHECK_HTTP_MESSAGE_FIRST(); |
| 551 | |
| 552 | txn = smp->strm->txn; |
| 553 | if (txn->rsp.msg_state < HTTP_MSG_BODY) |
| 554 | return 0; |
| 555 | |
| 556 | len = txn->rsp.sl.st.c_l; |
| 557 | ptr = ci_head(txn->rsp.chn) + txn->rsp.sl.st.c; |
| 558 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 559 | |
| 560 | smp->data.type = SMP_T_SINT; |
| 561 | smp->data.u.sint = __strl2ui(ptr, len); |
| 562 | smp->flags = SMP_F_VOL_1ST; |
| 563 | return 1; |
| 564 | } |
| 565 | |
| 566 | static int smp_fetch_uniqueid(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 567 | { |
| 568 | if (LIST_ISEMPTY(&smp->sess->fe->format_unique_id)) |
| 569 | return 0; |
| 570 | |
| 571 | if (!smp->strm->unique_id) { |
| 572 | if ((smp->strm->unique_id = pool_alloc(pool_head_uniqueid)) == NULL) |
| 573 | return 0; |
| 574 | smp->strm->unique_id[0] = '\0'; |
| 575 | } |
| 576 | smp->data.u.str.data = build_logline(smp->strm, smp->strm->unique_id, |
| 577 | UNIQUEID_LEN, &smp->sess->fe->format_unique_id); |
| 578 | |
| 579 | smp->data.type = SMP_T_STR; |
| 580 | smp->data.u.str.area = smp->strm->unique_id; |
| 581 | smp->flags = SMP_F_CONST; |
| 582 | return 1; |
| 583 | } |
| 584 | |
| 585 | /* Returns a string block containing all headers including the |
Joseph Herlant | 942eea3 | 2018-11-15 13:57:22 -0800 | [diff] [blame] | 586 | * empty line which separes headers from the body. This is useful |
| 587 | * for some headers analysis. |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 588 | */ |
| 589 | static int smp_fetch_hdrs(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 590 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 591 | struct http_txn *txn; |
| 592 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 593 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 594 | /* HTX version */ |
| 595 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 596 | struct buffer *temp; |
| 597 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 598 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 599 | if (!htx) |
| 600 | return 0; |
| 601 | temp = get_trash_chunk(); |
| 602 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 603 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 604 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 605 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 606 | if (type == HTX_BLK_HDR) { |
| 607 | struct ist n = htx_get_blk_name(htx, blk); |
| 608 | struct ist v = htx_get_blk_value(htx, blk); |
| 609 | |
| 610 | if (!htx_hdr_to_str(n, v, temp)) |
| 611 | return 0; |
| 612 | } |
| 613 | else if (type == HTX_BLK_EOH) { |
| 614 | if (!chunk_memcat(temp, "\r\n", 2)) |
| 615 | return 0; |
| 616 | break; |
| 617 | } |
| 618 | } |
| 619 | smp->data.type = SMP_T_STR; |
| 620 | smp->data.u.str = *temp; |
| 621 | |
| 622 | } |
| 623 | else { |
| 624 | /* LEGACY version */ |
| 625 | struct http_msg *msg; |
| 626 | struct hdr_idx *idx; |
| 627 | |
| 628 | CHECK_HTTP_MESSAGE_FIRST(); |
| 629 | |
| 630 | txn = smp->strm->txn; |
| 631 | idx = &txn->hdr_idx; |
| 632 | msg = &txn->req; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 633 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 634 | smp->data.type = SMP_T_STR; |
| 635 | smp->data.u.str.area = ci_head(msg->chn) + hdr_idx_first_pos(idx); |
| 636 | smp->data.u.str.data = msg->eoh - hdr_idx_first_pos(idx) + 1 + |
| 637 | (ci_head(msg->chn)[msg->eoh] == '\r'); |
| 638 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 639 | return 1; |
| 640 | } |
| 641 | |
| 642 | /* Returns the header request in a length/value encoded format. |
| 643 | * This is useful for exchanges with the SPOE. |
| 644 | * |
| 645 | * A "length value" is a multibyte code encoding numbers. It uses the |
| 646 | * SPOE format. The encoding is the following: |
| 647 | * |
| 648 | * Each couple "header name" / "header value" is composed |
| 649 | * like this: |
| 650 | * "length value" "header name bytes" |
| 651 | * "length value" "header value bytes" |
| 652 | * When the last header is reached, the header name and the header |
| 653 | * value are empty. Their length are 0 |
| 654 | */ |
| 655 | static int smp_fetch_hdrs_bin(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 656 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 657 | struct http_txn *txn; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 658 | struct buffer *temp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 659 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 660 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 661 | /* HTX version */ |
| 662 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 663 | struct buffer *temp; |
| 664 | char *p, *end; |
| 665 | int32_t pos; |
| 666 | int ret; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 667 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 668 | if (!htx) |
| 669 | return 0; |
| 670 | temp = get_trash_chunk(); |
| 671 | p = temp->area; |
| 672 | end = temp->area + temp->size; |
| 673 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 674 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 675 | enum htx_blk_type type = htx_get_blk_type(blk); |
| 676 | struct ist n, v; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 677 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 678 | if (type == HTX_BLK_HDR) { |
| 679 | n = htx_get_blk_name(htx,blk); |
| 680 | v = htx_get_blk_value(htx, blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 681 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 682 | /* encode the header name. */ |
| 683 | ret = encode_varint(n.len, &p, end); |
| 684 | if (ret == -1) |
| 685 | return 0; |
| 686 | if (p + n.len > end) |
| 687 | return 0; |
| 688 | memcpy(p, n.ptr, n.len); |
| 689 | p += n.len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 690 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 691 | /* encode the header value. */ |
| 692 | ret = encode_varint(v.len, &p, end); |
| 693 | if (ret == -1) |
| 694 | return 0; |
| 695 | if (p + v.len > end) |
| 696 | return 0; |
| 697 | memcpy(p, v.ptr, v.len); |
| 698 | p += v.len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 699 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 700 | } |
| 701 | else if (type == HTX_BLK_EOH) { |
| 702 | /* encode the end of the header list with empty |
| 703 | * header name and header value. |
| 704 | */ |
| 705 | ret = encode_varint(0, &p, end); |
| 706 | if (ret == -1) |
| 707 | return 0; |
| 708 | ret = encode_varint(0, &p, end); |
| 709 | if (ret == -1) |
| 710 | return 0; |
| 711 | break; |
| 712 | } |
| 713 | } |
| 714 | |
| 715 | /* Initialise sample data which will be filled. */ |
| 716 | smp->data.type = SMP_T_BIN; |
| 717 | smp->data.u.str.area = temp->area; |
| 718 | smp->data.u.str.data = p - temp->area; |
| 719 | smp->data.u.str.size = temp->size; |
| 720 | } |
| 721 | else { |
| 722 | /* LEGACY version */ |
| 723 | struct http_msg *msg; |
| 724 | struct hdr_idx *idx; |
| 725 | const char *cur_ptr, *cur_next, *p; |
| 726 | int old_idx, cur_idx; |
| 727 | struct hdr_idx_elem *cur_hdr; |
| 728 | const char *hn, *hv; |
| 729 | int hnl, hvl; |
| 730 | int ret; |
| 731 | char *buf; |
| 732 | char *end; |
| 733 | |
| 734 | CHECK_HTTP_MESSAGE_FIRST(); |
| 735 | |
| 736 | temp = get_trash_chunk(); |
| 737 | buf = temp->area; |
| 738 | end = temp->area + temp->size; |
| 739 | |
| 740 | txn = smp->strm->txn; |
| 741 | idx = &txn->hdr_idx; |
| 742 | msg = &txn->req; |
| 743 | |
| 744 | /* Build array of headers. */ |
| 745 | old_idx = 0; |
| 746 | cur_next = ci_head(msg->chn) + hdr_idx_first_pos(idx); |
| 747 | while (1) { |
| 748 | cur_idx = idx->v[old_idx].next; |
| 749 | if (!cur_idx) |
| 750 | break; |
| 751 | old_idx = cur_idx; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 752 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 753 | cur_hdr = &idx->v[cur_idx]; |
| 754 | cur_ptr = cur_next; |
| 755 | cur_next = cur_ptr + cur_hdr->len + cur_hdr->cr + 1; |
| 756 | |
| 757 | /* Now we have one full header at cur_ptr of len cur_hdr->len, |
| 758 | * and the next header starts at cur_next. We'll check |
| 759 | * this header in the list as well as against the default |
| 760 | * rule. |
| 761 | */ |
| 762 | |
| 763 | /* look for ': *'. */ |
| 764 | hn = cur_ptr; |
| 765 | for (p = cur_ptr; p < cur_ptr + cur_hdr->len && *p != ':'; p++); |
| 766 | if (p >= cur_ptr+cur_hdr->len) |
| 767 | continue; |
| 768 | hnl = p - hn; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 769 | p++; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 770 | while (p < cur_ptr + cur_hdr->len && (*p == ' ' || *p == '\t')) |
| 771 | p++; |
| 772 | if (p >= cur_ptr + cur_hdr->len) |
| 773 | continue; |
| 774 | hv = p; |
| 775 | hvl = cur_ptr + cur_hdr->len-p; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 776 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 777 | /* encode the header name. */ |
| 778 | ret = encode_varint(hnl, &buf, end); |
| 779 | if (ret == -1) |
| 780 | return 0; |
| 781 | if (buf + hnl > end) |
| 782 | return 0; |
| 783 | memcpy(buf, hn, hnl); |
| 784 | buf += hnl; |
| 785 | |
| 786 | /* encode and copy the value. */ |
| 787 | ret = encode_varint(hvl, &buf, end); |
| 788 | if (ret == -1) |
| 789 | return 0; |
| 790 | if (buf + hvl > end) |
| 791 | return 0; |
| 792 | memcpy(buf, hv, hvl); |
| 793 | buf += hvl; |
| 794 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 795 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 796 | /* encode the end of the header list with empty |
| 797 | * header name and header value. |
| 798 | */ |
| 799 | ret = encode_varint(0, &buf, end); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 800 | if (ret == -1) |
| 801 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 802 | ret = encode_varint(0, &buf, end); |
| 803 | if (ret == -1) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 804 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 805 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 806 | /* Initialise sample data which will be filled. */ |
| 807 | smp->data.type = SMP_T_BIN; |
| 808 | smp->data.u.str.area = temp->area; |
| 809 | smp->data.u.str.data = buf - temp->area; |
| 810 | smp->data.u.str.size = temp->size; |
| 811 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 812 | return 1; |
| 813 | } |
| 814 | |
| 815 | /* returns the longest available part of the body. This requires that the body |
| 816 | * has been waited for using http-buffer-request. |
| 817 | */ |
| 818 | static int smp_fetch_body(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 819 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 820 | struct buffer *temp; |
| 821 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 822 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 823 | /* HTX version */ |
| 824 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 825 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 826 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 827 | if (!htx) |
| 828 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 829 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 830 | temp = get_trash_chunk(); |
| 831 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 832 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 833 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 834 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 835 | if (type == HTX_BLK_EOM || type == HTX_BLK_EOD) |
| 836 | break; |
| 837 | if (type == HTX_BLK_DATA) { |
| 838 | if (!htx_data_to_str(htx_get_blk_value(htx, blk), temp, 0)) |
| 839 | return 0; |
| 840 | } |
| 841 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 842 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 843 | smp->data.type = SMP_T_BIN; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 844 | smp->data.u.str = *temp; |
| 845 | smp->flags = SMP_F_VOL_TEST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 846 | } |
| 847 | else { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 848 | /* LEGACY version */ |
| 849 | struct http_msg *msg; |
| 850 | unsigned long len; |
| 851 | unsigned long block1; |
| 852 | char *body; |
| 853 | |
| 854 | CHECK_HTTP_MESSAGE_FIRST(); |
| 855 | |
| 856 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 857 | msg = &smp->strm->txn->req; |
| 858 | else |
| 859 | msg = &smp->strm->txn->rsp; |
| 860 | |
| 861 | len = http_body_bytes(msg); |
| 862 | body = c_ptr(msg->chn, -http_data_rewind(msg)); |
| 863 | |
| 864 | block1 = len; |
| 865 | if (block1 > b_wrap(&msg->chn->buf) - body) |
| 866 | block1 = b_wrap(&msg->chn->buf) - body; |
| 867 | |
| 868 | if (block1 == len) { |
| 869 | /* buffer is not wrapped (or empty) */ |
| 870 | smp->data.type = SMP_T_BIN; |
| 871 | smp->data.u.str.area = body; |
| 872 | smp->data.u.str.data = len; |
| 873 | smp->flags = SMP_F_VOL_TEST | SMP_F_CONST; |
| 874 | } |
| 875 | else { |
| 876 | /* buffer is wrapped, we need to defragment it */ |
| 877 | temp = get_trash_chunk(); |
| 878 | memcpy(temp->area, body, block1); |
| 879 | memcpy(temp->area + block1, b_orig(&msg->chn->buf), |
| 880 | len - block1); |
| 881 | smp->data.type = SMP_T_BIN; |
| 882 | smp->data.u.str.area = temp->area; |
| 883 | smp->data.u.str.data = len; |
| 884 | smp->flags = SMP_F_VOL_TEST; |
| 885 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 886 | } |
| 887 | return 1; |
| 888 | } |
| 889 | |
| 890 | |
| 891 | /* returns the available length of the body. This requires that the body |
| 892 | * has been waited for using http-buffer-request. |
| 893 | */ |
| 894 | static int smp_fetch_body_len(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 895 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 896 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 897 | /* HTX version */ |
| 898 | return 0; /* TODO: to be implemented */ |
| 899 | } |
| 900 | else { |
| 901 | /* LEGACY version */ |
| 902 | struct http_msg *msg; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 903 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 904 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 905 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 906 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 907 | msg = &smp->strm->txn->req; |
| 908 | else |
| 909 | msg = &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 910 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 911 | smp->data.type = SMP_T_SINT; |
| 912 | smp->data.u.sint = http_body_bytes(msg); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 913 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 914 | smp->flags = SMP_F_VOL_TEST; |
| 915 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 916 | return 1; |
| 917 | } |
| 918 | |
| 919 | |
| 920 | /* returns the advertised length of the body, or the advertised size of the |
| 921 | * chunks available in the buffer. This requires that the body has been waited |
| 922 | * for using http-buffer-request. |
| 923 | */ |
| 924 | static int smp_fetch_body_size(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 925 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 926 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 927 | /* HTX version */ |
| 928 | return 0; /* TODO: to be implemented */ |
| 929 | } |
| 930 | else { |
| 931 | /* LEGACY version */ |
| 932 | struct http_msg *msg; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 933 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 934 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 935 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 936 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 937 | msg = &smp->strm->txn->req; |
| 938 | else |
| 939 | msg = &smp->strm->txn->rsp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 940 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 941 | smp->data.type = SMP_T_SINT; |
| 942 | smp->data.u.sint = msg->body_len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 943 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 944 | smp->flags = SMP_F_VOL_TEST; |
| 945 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 946 | return 1; |
| 947 | } |
| 948 | |
| 949 | |
| 950 | /* 4. Check on URL/URI. A pointer to the URI is stored. */ |
| 951 | static int smp_fetch_url(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 952 | { |
| 953 | struct http_txn *txn; |
| 954 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 955 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 956 | /* HTX version */ |
| 957 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 958 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 959 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 960 | if (!htx) |
| 961 | return 0; |
| 962 | sl = http_find_stline(htx); |
| 963 | smp->data.type = SMP_T_STR; |
| 964 | smp->data.u.str.area = sl.rq.u.ptr; |
| 965 | smp->data.u.str.data = sl.rq.u.len; |
| 966 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 967 | } |
| 968 | else { |
| 969 | /* LEGACY version */ |
| 970 | CHECK_HTTP_MESSAGE_FIRST(); |
| 971 | |
| 972 | txn = smp->strm->txn; |
| 973 | smp->data.type = SMP_T_STR; |
| 974 | smp->data.u.str.data = txn->req.sl.rq.u_l; |
| 975 | smp->data.u.str.area = ci_head(txn->req.chn) + txn->req.sl.rq.u; |
| 976 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 977 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 978 | return 1; |
| 979 | } |
| 980 | |
| 981 | static int smp_fetch_url_ip(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 982 | { |
| 983 | struct http_txn *txn; |
| 984 | struct sockaddr_storage addr; |
| 985 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 986 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 987 | /* HTX version */ |
| 988 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 989 | union h1_sl sl; |
| 990 | |
| 991 | if (!htx) |
| 992 | return 0; |
| 993 | sl = http_find_stline(htx); |
| 994 | url2sa(sl.rq.u.ptr, sl.rq.u.len, &addr, NULL); |
| 995 | } |
| 996 | else { |
| 997 | /* LEGACY version */ |
| 998 | CHECK_HTTP_MESSAGE_FIRST(); |
| 999 | |
| 1000 | txn = smp->strm->txn; |
| 1001 | url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL); |
| 1002 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1003 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1004 | if (((struct sockaddr_in *)&addr)->sin_family != AF_INET) |
| 1005 | return 0; |
| 1006 | |
| 1007 | smp->data.type = SMP_T_IPV4; |
| 1008 | smp->data.u.ipv4 = ((struct sockaddr_in *)&addr)->sin_addr; |
| 1009 | smp->flags = 0; |
| 1010 | return 1; |
| 1011 | } |
| 1012 | |
| 1013 | static int smp_fetch_url_port(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1014 | { |
| 1015 | struct http_txn *txn; |
| 1016 | struct sockaddr_storage addr; |
| 1017 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1018 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1019 | /* HTX version */ |
| 1020 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1021 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1022 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1023 | if (!htx) |
| 1024 | return 0; |
| 1025 | sl = http_find_stline(htx); |
| 1026 | url2sa(sl.rq.u.ptr, sl.rq.u.len, &addr, NULL); |
| 1027 | } |
| 1028 | else { |
| 1029 | /* LEGACY version */ |
| 1030 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1031 | |
| 1032 | txn = smp->strm->txn; |
| 1033 | url2sa(ci_head(txn->req.chn) + txn->req.sl.rq.u, txn->req.sl.rq.u_l, &addr, NULL); |
| 1034 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1035 | if (((struct sockaddr_in *)&addr)->sin_family != AF_INET) |
| 1036 | return 0; |
| 1037 | |
| 1038 | smp->data.type = SMP_T_SINT; |
| 1039 | smp->data.u.sint = ntohs(((struct sockaddr_in *)&addr)->sin_port); |
| 1040 | smp->flags = 0; |
| 1041 | return 1; |
| 1042 | } |
| 1043 | |
| 1044 | /* Fetch an HTTP header. A pointer to the beginning of the value is returned. |
| 1045 | * Accepts an optional argument of type string containing the header field name, |
| 1046 | * and an optional argument of type signed or unsigned integer to request an |
| 1047 | * explicit occurrence of the header. Note that in the event of a missing name, |
| 1048 | * headers are considered from the first one. It does not stop on commas and |
| 1049 | * returns full lines instead (useful for User-Agent or Date for example). |
| 1050 | */ |
| 1051 | static int smp_fetch_fhdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1052 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1053 | int occ = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1054 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1055 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1056 | /* HTX version */ |
| 1057 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1058 | struct http_hdr_ctx *ctx = smp->ctx.a[0]; |
| 1059 | struct ist name; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1060 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1061 | if (!ctx) { |
| 1062 | /* first call */ |
| 1063 | ctx = &static_http_hdr_ctx; |
| 1064 | ctx->blk = NULL; |
| 1065 | smp->ctx.a[0] = ctx; |
| 1066 | } |
| 1067 | |
| 1068 | if (args) { |
| 1069 | if (args[0].type != ARGT_STR) |
| 1070 | return 0; |
| 1071 | name.ptr = args[0].data.str.area; |
| 1072 | name.len = args[0].data.str.data; |
| 1073 | |
| 1074 | if (args[1].type == ARGT_SINT) |
| 1075 | occ = args[1].data.sint; |
| 1076 | } |
| 1077 | |
| 1078 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1079 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1080 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1081 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1082 | /* search for header from the beginning */ |
| 1083 | ctx->blk = NULL; |
| 1084 | |
| 1085 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1086 | /* no explicit occurrence and single fetch => last header by default */ |
| 1087 | occ = -1; |
| 1088 | |
| 1089 | if (!occ) |
| 1090 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1091 | smp->flags |= SMP_F_NOT_LAST; |
| 1092 | |
| 1093 | smp->data.type = SMP_T_STR; |
| 1094 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1095 | if (http_get_htx_fhdr(htx, name, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1096 | return 1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1097 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1098 | else { |
| 1099 | /* LEGACY version */ |
| 1100 | struct hdr_idx *idx; |
| 1101 | struct hdr_ctx *ctx = smp->ctx.a[0]; |
| 1102 | const struct http_msg *msg; |
| 1103 | const char *name_str = NULL; |
| 1104 | int name_len = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1105 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1106 | if (!ctx) { |
| 1107 | /* first call */ |
| 1108 | ctx = &static_hdr_ctx; |
| 1109 | ctx->idx = 0; |
| 1110 | smp->ctx.a[0] = ctx; |
| 1111 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1112 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1113 | if (args) { |
| 1114 | if (args[0].type != ARGT_STR) |
| 1115 | return 0; |
| 1116 | name_str = args[0].data.str.area; |
| 1117 | name_len = args[0].data.str.data; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1118 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1119 | if (args[1].type == ARGT_SINT) |
| 1120 | occ = args[1].data.sint; |
| 1121 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1122 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1123 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1124 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1125 | idx = &smp->strm->txn->hdr_idx; |
| 1126 | 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] | 1127 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1128 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1129 | /* search for header from the beginning */ |
| 1130 | ctx->idx = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1131 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1132 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1133 | /* no explicit occurrence and single fetch => last header by default */ |
| 1134 | occ = -1; |
| 1135 | |
| 1136 | if (!occ) |
| 1137 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1138 | smp->flags |= SMP_F_NOT_LAST; |
| 1139 | |
| 1140 | smp->data.type = SMP_T_STR; |
| 1141 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1142 | if (http_get_fhdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1143 | return 1; |
| 1144 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1145 | smp->flags &= ~SMP_F_NOT_LAST; |
| 1146 | return 0; |
| 1147 | } |
| 1148 | |
| 1149 | /* 6. Check on HTTP header count. The number of occurrences is returned. |
| 1150 | * Accepts exactly 1 argument of type string. It does not stop on commas and |
| 1151 | * returns full lines instead (useful for User-Agent or Date for example). |
| 1152 | */ |
| 1153 | static int smp_fetch_fhdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1154 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1155 | int cnt; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1156 | |
| 1157 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1158 | /* HTX version */ |
| 1159 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1160 | struct http_hdr_ctx ctx; |
| 1161 | struct ist name; |
| 1162 | |
| 1163 | if (!htx) |
| 1164 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1165 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1166 | if (args && args->type == ARGT_STR) { |
| 1167 | name.ptr = args->data.str.area; |
| 1168 | name.len = args->data.str.data; |
Olivier Houchard | e2c78cd | 2018-11-21 13:49:48 +0100 | [diff] [blame] | 1169 | } else { |
| 1170 | name.ptr = NULL; |
| 1171 | name.len = 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1172 | } |
| 1173 | |
| 1174 | ctx.blk = NULL; |
| 1175 | cnt = 0; |
| 1176 | while (http_find_header(htx, name, &ctx, 1)) |
| 1177 | cnt++; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1178 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1179 | else { |
| 1180 | /* LEGACY version */ |
| 1181 | struct hdr_idx *idx; |
| 1182 | struct hdr_ctx ctx; |
| 1183 | const struct http_msg *msg; |
| 1184 | const char *name = NULL; |
| 1185 | int len = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1186 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1187 | if (args && args->type == ARGT_STR) { |
| 1188 | name = args->data.str.area; |
| 1189 | len = args->data.str.data; |
| 1190 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1191 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1192 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1193 | |
| 1194 | idx = &smp->strm->txn->hdr_idx; |
| 1195 | 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] | 1196 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1197 | ctx.idx = 0; |
| 1198 | cnt = 0; |
| 1199 | while (http_find_full_header2(name, len, ci_head(msg->chn), idx, &ctx)) |
| 1200 | cnt++; |
| 1201 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1202 | |
| 1203 | smp->data.type = SMP_T_SINT; |
| 1204 | smp->data.u.sint = cnt; |
| 1205 | smp->flags = SMP_F_VOL_HDR; |
| 1206 | return 1; |
| 1207 | } |
| 1208 | |
| 1209 | static int smp_fetch_hdr_names(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1210 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1211 | struct buffer *temp; |
| 1212 | char del = ','; |
| 1213 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1214 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1215 | /* HTX version */ |
| 1216 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1217 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1218 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1219 | if (!htx) |
| 1220 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1221 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1222 | if (args && args->type == ARGT_STR) |
| 1223 | del = *args[0].data.str.area; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1224 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1225 | temp = get_trash_chunk(); |
| 1226 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 1227 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 1228 | enum htx_blk_type type = htx_get_blk_type(blk); |
| 1229 | struct ist n; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1230 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1231 | if (type == HTX_BLK_EOH) |
| 1232 | break; |
| 1233 | if (type != HTX_BLK_HDR) |
| 1234 | continue; |
| 1235 | n = htx_get_blk_name(htx, blk); |
| 1236 | |
| 1237 | if (temp->data) |
| 1238 | temp->area[temp->data++] = del; |
| 1239 | chunk_memcat(temp, n.ptr, n.len); |
| 1240 | } |
| 1241 | } |
| 1242 | else { |
| 1243 | /* LEGACY version */ |
| 1244 | struct hdr_idx *idx; |
| 1245 | struct hdr_ctx ctx; |
| 1246 | const struct http_msg *msg; |
| 1247 | |
| 1248 | if (args && args->type == ARGT_STR) |
| 1249 | del = *args[0].data.str.area; |
| 1250 | |
| 1251 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1252 | |
| 1253 | idx = &smp->strm->txn->hdr_idx; |
| 1254 | msg = ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) ? &smp->strm->txn->req : &smp->strm->txn->rsp; |
| 1255 | |
| 1256 | temp = get_trash_chunk(); |
| 1257 | |
| 1258 | ctx.idx = 0; |
| 1259 | while (http_find_next_header(ci_head(msg->chn), idx, &ctx)) { |
| 1260 | if (temp->data) |
| 1261 | temp->area[temp->data++] = del; |
| 1262 | memcpy(temp->area + temp->data, ctx.line, ctx.del); |
| 1263 | temp->data += ctx.del; |
| 1264 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1265 | } |
| 1266 | |
| 1267 | smp->data.type = SMP_T_STR; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1268 | smp->data.u.str = *temp; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1269 | smp->flags = SMP_F_VOL_HDR; |
| 1270 | return 1; |
| 1271 | } |
| 1272 | |
| 1273 | /* Fetch an HTTP header. A pointer to the beginning of the value is returned. |
| 1274 | * Accepts an optional argument of type string containing the header field name, |
| 1275 | * and an optional argument of type signed or unsigned integer to request an |
| 1276 | * explicit occurrence of the header. Note that in the event of a missing name, |
| 1277 | * headers are considered from the first one. |
| 1278 | */ |
| 1279 | static int smp_fetch_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1280 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1281 | int occ = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1282 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1283 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1284 | /* HTX version */ |
| 1285 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1286 | struct http_hdr_ctx *ctx = smp->ctx.a[0]; |
| 1287 | struct ist name; |
| 1288 | |
| 1289 | if (!ctx) { |
| 1290 | /* first call */ |
| 1291 | ctx = &static_http_hdr_ctx; |
| 1292 | ctx->blk = NULL; |
| 1293 | smp->ctx.a[0] = ctx; |
| 1294 | } |
| 1295 | |
| 1296 | if (args) { |
| 1297 | if (args[0].type != ARGT_STR) |
| 1298 | return 0; |
| 1299 | name.ptr = args[0].data.str.area; |
| 1300 | name.len = args[0].data.str.data; |
| 1301 | |
| 1302 | if (args[1].type == ARGT_SINT) |
| 1303 | occ = args[1].data.sint; |
| 1304 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1305 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1306 | if (!htx) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1307 | return 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1308 | |
| 1309 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1310 | /* search for header from the beginning */ |
| 1311 | ctx->blk = NULL; |
| 1312 | |
| 1313 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1314 | /* no explicit occurrence and single fetch => last header by default */ |
| 1315 | occ = -1; |
| 1316 | |
| 1317 | if (!occ) |
| 1318 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1319 | smp->flags |= SMP_F_NOT_LAST; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1320 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1321 | smp->data.type = SMP_T_STR; |
| 1322 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1323 | if (http_get_htx_hdr(htx, name, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1324 | return 1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1325 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1326 | else { |
| 1327 | /* LEGACY version */ |
| 1328 | struct hdr_idx *idx; |
| 1329 | struct hdr_ctx *ctx = smp->ctx.a[0]; |
| 1330 | const struct http_msg *msg; |
| 1331 | const char *name_str = NULL; |
| 1332 | int name_len = 0; |
| 1333 | |
| 1334 | if (!ctx) { |
| 1335 | /* first call */ |
| 1336 | ctx = &static_hdr_ctx; |
| 1337 | ctx->idx = 0; |
| 1338 | smp->ctx.a[0] = ctx; |
| 1339 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1340 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1341 | if (args) { |
| 1342 | if (args[0].type != ARGT_STR) |
| 1343 | return 0; |
| 1344 | name_str = args[0].data.str.area; |
| 1345 | name_len = args[0].data.str.data; |
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 | if (args[1].type == ARGT_SINT) |
| 1348 | occ = args[1].data.sint; |
| 1349 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1350 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1351 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1352 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1353 | idx = &smp->strm->txn->hdr_idx; |
| 1354 | 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] | 1355 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1356 | if (ctx && !(smp->flags & SMP_F_NOT_LAST)) |
| 1357 | /* search for header from the beginning */ |
| 1358 | ctx->idx = 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1359 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1360 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 1361 | /* no explicit occurrence and single fetch => last header by default */ |
| 1362 | occ = -1; |
| 1363 | |
| 1364 | if (!occ) |
| 1365 | /* prepare to report multiple occurrences for ACL fetches */ |
| 1366 | smp->flags |= SMP_F_NOT_LAST; |
| 1367 | |
| 1368 | smp->data.type = SMP_T_STR; |
| 1369 | smp->flags |= SMP_F_VOL_HDR | SMP_F_CONST; |
| 1370 | if (http_get_hdr(msg, name_str, name_len, idx, occ, ctx, &smp->data.u.str.area, &smp->data.u.str.data)) |
| 1371 | return 1; |
| 1372 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1373 | |
| 1374 | smp->flags &= ~SMP_F_NOT_LAST; |
| 1375 | return 0; |
| 1376 | } |
| 1377 | |
| 1378 | /* 6. Check on HTTP header count. The number of occurrences is returned. |
| 1379 | * Accepts exactly 1 argument of type string. |
| 1380 | */ |
| 1381 | static int smp_fetch_hdr_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1382 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1383 | int cnt; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1384 | |
| 1385 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1386 | /* HTX version */ |
| 1387 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1388 | struct http_hdr_ctx ctx; |
| 1389 | struct ist name; |
| 1390 | |
| 1391 | if (!htx) |
| 1392 | return 0; |
| 1393 | |
| 1394 | if (args && args->type == ARGT_STR) { |
| 1395 | name.ptr = args->data.str.area; |
| 1396 | name.len = args->data.str.data; |
Olivier Houchard | e2c78cd | 2018-11-21 13:49:48 +0100 | [diff] [blame] | 1397 | } else { |
| 1398 | name.ptr = NULL; |
| 1399 | name.len = 0; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1400 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1401 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1402 | ctx.blk = NULL; |
| 1403 | cnt = 0; |
| 1404 | while (http_find_header(htx, name, &ctx, 0)) |
| 1405 | cnt++; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1406 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1407 | else { |
| 1408 | /* LEGACY version */ |
| 1409 | struct hdr_idx *idx; |
| 1410 | struct hdr_ctx ctx; |
| 1411 | const struct http_msg *msg; |
| 1412 | const char *name = NULL; |
| 1413 | int len = 0; |
| 1414 | |
| 1415 | if (args && args->type == ARGT_STR) { |
| 1416 | name = args->data.str.area; |
| 1417 | len = args->data.str.data; |
| 1418 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1419 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1420 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1421 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1422 | idx = &smp->strm->txn->hdr_idx; |
| 1423 | 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] | 1424 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1425 | ctx.idx = 0; |
| 1426 | cnt = 0; |
| 1427 | while (http_find_header2(name, len, ci_head(msg->chn), idx, &ctx)) |
| 1428 | cnt++; |
| 1429 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1430 | |
| 1431 | smp->data.type = SMP_T_SINT; |
| 1432 | smp->data.u.sint = cnt; |
| 1433 | smp->flags = SMP_F_VOL_HDR; |
| 1434 | return 1; |
| 1435 | } |
| 1436 | |
| 1437 | /* Fetch an HTTP header's integer value. The integer value is returned. It |
| 1438 | * takes a mandatory argument of type string and an optional one of type int |
| 1439 | * to designate a specific occurrence. It returns an unsigned integer, which |
| 1440 | * may or may not be appropriate for everything. |
| 1441 | */ |
| 1442 | static int smp_fetch_hdr_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1443 | { |
| 1444 | int ret = smp_fetch_hdr(args, smp, kw, private); |
| 1445 | |
| 1446 | if (ret > 0) { |
| 1447 | smp->data.type = SMP_T_SINT; |
| 1448 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 1449 | smp->data.u.str.data); |
| 1450 | } |
| 1451 | |
| 1452 | return ret; |
| 1453 | } |
| 1454 | |
| 1455 | /* Fetch an HTTP header's IP value. takes a mandatory argument of type string |
| 1456 | * and an optional one of type int to designate a specific occurrence. |
| 1457 | * It returns an IPv4 or IPv6 address. |
| 1458 | */ |
| 1459 | static int smp_fetch_hdr_ip(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1460 | { |
| 1461 | int ret; |
| 1462 | |
| 1463 | while ((ret = smp_fetch_hdr(args, smp, kw, private)) > 0) { |
| 1464 | if (url2ipv4((char *) smp->data.u.str.area, &smp->data.u.ipv4)) { |
| 1465 | smp->data.type = SMP_T_IPV4; |
| 1466 | break; |
| 1467 | } else { |
| 1468 | struct buffer *temp = get_trash_chunk(); |
| 1469 | if (smp->data.u.str.data < temp->size - 1) { |
| 1470 | memcpy(temp->area, smp->data.u.str.area, |
| 1471 | smp->data.u.str.data); |
| 1472 | temp->area[smp->data.u.str.data] = '\0'; |
| 1473 | if (inet_pton(AF_INET6, temp->area, &smp->data.u.ipv6)) { |
| 1474 | smp->data.type = SMP_T_IPV6; |
| 1475 | break; |
| 1476 | } |
| 1477 | } |
| 1478 | } |
| 1479 | |
| 1480 | /* if the header doesn't match an IP address, fetch next one */ |
| 1481 | if (!(smp->flags & SMP_F_NOT_LAST)) |
| 1482 | return 0; |
| 1483 | } |
| 1484 | return ret; |
| 1485 | } |
| 1486 | |
| 1487 | /* 8. Check on URI PATH. A pointer to the PATH is stored. The path starts at |
| 1488 | * the first '/' after the possible hostname, and ends before the possible '?'. |
| 1489 | */ |
| 1490 | static int smp_fetch_path(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1491 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1492 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1493 | /* HTX version */ |
| 1494 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1495 | union h1_sl sl; |
| 1496 | struct ist path; |
| 1497 | size_t len; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1498 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1499 | if (!htx) |
| 1500 | return 0; |
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 | sl = http_find_stline(htx); |
| 1503 | path = http_get_path(sl.rq.u); |
| 1504 | if (!path.ptr) |
| 1505 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1506 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1507 | for (len = 0; len < path.len && *(path.ptr + len) != '?'; len++) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1508 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1509 | /* OK, we got the '/' ! */ |
| 1510 | smp->data.type = SMP_T_STR; |
| 1511 | smp->data.u.str.area = path.ptr; |
| 1512 | smp->data.u.str.data = len; |
| 1513 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1514 | } |
| 1515 | else { |
| 1516 | struct http_txn *txn; |
| 1517 | char *ptr, *end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1518 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1519 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1520 | |
| 1521 | txn = smp->strm->txn; |
| 1522 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1523 | ptr = http_txn_get_path(txn); |
| 1524 | if (!ptr) |
| 1525 | return 0; |
| 1526 | |
| 1527 | /* OK, we got the '/' ! */ |
| 1528 | smp->data.type = SMP_T_STR; |
| 1529 | smp->data.u.str.area = ptr; |
| 1530 | |
| 1531 | while (ptr < end && *ptr != '?') |
| 1532 | ptr++; |
| 1533 | |
| 1534 | smp->data.u.str.data = ptr - smp->data.u.str.area; |
| 1535 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1536 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1537 | return 1; |
| 1538 | } |
| 1539 | |
| 1540 | /* This produces a concatenation of the first occurrence of the Host header |
| 1541 | * followed by the path component if it begins with a slash ('/'). This means |
| 1542 | * that '*' will not be added, resulting in exactly the first Host entry. |
| 1543 | * If no Host header is found, then the path is returned as-is. The returned |
| 1544 | * value is stored in the trash so it does not need to be marked constant. |
| 1545 | * The returned sample is of type string. |
| 1546 | */ |
| 1547 | static int smp_fetch_base(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1548 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1549 | struct buffer *temp; |
| 1550 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1551 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1552 | /* HTX version */ |
| 1553 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1554 | union h1_sl sl; |
| 1555 | struct http_hdr_ctx ctx; |
| 1556 | struct ist path; |
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 | if (!htx) |
| 1559 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1560 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1561 | ctx.blk = NULL; |
| 1562 | if (!http_find_header(htx, ist("Host"), &ctx, 0) || !ctx.value.len) |
| 1563 | return smp_fetch_path(args, smp, kw, private); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1564 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1565 | /* OK we have the header value in ctx.value */ |
| 1566 | temp = get_trash_chunk(); |
| 1567 | chunk_memcat(temp, ctx.value.ptr, ctx.value.len); |
| 1568 | |
| 1569 | /* now retrieve the path */ |
| 1570 | sl = http_find_stline(htx); |
| 1571 | path = http_get_path(sl.rq.u); |
| 1572 | if (path.ptr) { |
| 1573 | size_t len; |
| 1574 | |
| 1575 | for (len = 0; len < path.len && *(path.ptr) != '?'; len++); |
| 1576 | if (len && *(path.ptr) == '/') |
| 1577 | chunk_memcat(temp, path.ptr, len); |
| 1578 | } |
| 1579 | |
| 1580 | smp->data.type = SMP_T_STR; |
| 1581 | smp->data.u.str = *temp; |
| 1582 | } |
| 1583 | else { |
| 1584 | /* LEGACY version */ |
| 1585 | struct http_txn *txn; |
| 1586 | char *ptr, *end, *beg; |
| 1587 | struct hdr_ctx ctx; |
| 1588 | |
| 1589 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1590 | |
| 1591 | txn = smp->strm->txn; |
| 1592 | ctx.idx = 0; |
| 1593 | if (!http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx) || !ctx.vlen) |
| 1594 | return smp_fetch_path(args, smp, kw, private); |
| 1595 | |
| 1596 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 1597 | temp = get_trash_chunk(); |
| 1598 | memcpy(temp->area, ctx.line + ctx.val, ctx.vlen); |
| 1599 | smp->data.type = SMP_T_STR; |
| 1600 | smp->data.u.str.area = temp->area; |
| 1601 | smp->data.u.str.data = ctx.vlen; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1602 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1603 | /* now retrieve the path */ |
| 1604 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1605 | beg = http_txn_get_path(txn); |
| 1606 | if (!beg) |
| 1607 | beg = end; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1608 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1609 | for (ptr = beg; ptr < end && *ptr != '?'; ptr++); |
| 1610 | |
| 1611 | if (beg < ptr && *beg == '/') { |
| 1612 | memcpy(smp->data.u.str.area + smp->data.u.str.data, beg, |
| 1613 | ptr - beg); |
| 1614 | smp->data.u.str.data += ptr - beg; |
| 1615 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1616 | } |
| 1617 | |
| 1618 | smp->flags = SMP_F_VOL_1ST; |
| 1619 | return 1; |
| 1620 | } |
| 1621 | |
| 1622 | /* This produces a 32-bit hash of the concatenation of the first occurrence of |
| 1623 | * the Host header followed by the path component if it begins with a slash ('/'). |
| 1624 | * This means that '*' will not be added, resulting in exactly the first Host |
| 1625 | * entry. If no Host header is found, then the path is used. The resulting value |
| 1626 | * is hashed using the path hash followed by a full avalanche hash and provides a |
| 1627 | * 32-bit integer value. This fetch is useful for tracking per-path activity on |
| 1628 | * high-traffic sites without having to store whole paths. |
| 1629 | */ |
| 1630 | static int smp_fetch_base32(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1631 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1632 | unsigned int hash = 0; |
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 (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1635 | /* HTX version */ |
| 1636 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1637 | union h1_sl sl; |
| 1638 | struct http_hdr_ctx ctx; |
| 1639 | struct ist path; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1640 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1641 | if (!htx) |
| 1642 | return 0; |
| 1643 | |
| 1644 | ctx.blk = NULL; |
| 1645 | if (!http_find_header(htx, ist("Host"), &ctx, 0)) { |
| 1646 | /* OK we have the header value in ctx.value */ |
| 1647 | while (ctx.value.len--) |
| 1648 | hash = *(ctx.value.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1649 | } |
| 1650 | |
| 1651 | /* now retrieve the path */ |
| 1652 | sl = http_find_stline(htx); |
| 1653 | path = http_get_path(sl.rq.u); |
| 1654 | if (path.ptr) { |
| 1655 | size_t len; |
| 1656 | |
| 1657 | for (len = 0; len < path.len && *(path.ptr) != '?'; len++); |
| 1658 | if (len && *(path.ptr) == '/') { |
| 1659 | while (len--) |
| 1660 | hash = *(path.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1661 | } |
| 1662 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1663 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1664 | else { |
| 1665 | /* LEGACY version */ |
| 1666 | struct http_txn *txn; |
| 1667 | struct hdr_ctx ctx; |
| 1668 | char *ptr, *beg, *end; |
| 1669 | int len; |
| 1670 | |
| 1671 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1672 | |
| 1673 | txn = smp->strm->txn; |
| 1674 | ctx.idx = 0; |
| 1675 | if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) { |
| 1676 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 1677 | ptr = ctx.line + ctx.val; |
| 1678 | len = ctx.vlen; |
| 1679 | while (len--) |
| 1680 | hash = *(ptr++) + (hash << 6) + (hash << 16) - hash; |
| 1681 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1682 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1683 | /* now retrieve the path */ |
| 1684 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 1685 | beg = http_txn_get_path(txn); |
| 1686 | if (!beg) |
| 1687 | beg = end; |
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 | for (ptr = beg; ptr < end && *ptr != '?'; ptr++); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1690 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1691 | if (beg < ptr && *beg == '/') { |
| 1692 | while (beg < ptr) |
| 1693 | hash = *(beg++) + (hash << 6) + (hash << 16) - hash; |
| 1694 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1695 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1696 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1697 | hash = full_hash(hash); |
| 1698 | |
| 1699 | smp->data.type = SMP_T_SINT; |
| 1700 | smp->data.u.sint = hash; |
| 1701 | smp->flags = SMP_F_VOL_1ST; |
| 1702 | return 1; |
| 1703 | } |
| 1704 | |
| 1705 | /* This concatenates the source address with the 32-bit hash of the Host and |
| 1706 | * path as returned by smp_fetch_base32(). The idea is to have per-source and |
| 1707 | * per-path counters. The result is a binary block from 8 to 20 bytes depending |
| 1708 | * on the source address length. The path hash is stored before the address so |
| 1709 | * that in environments where IPv6 is insignificant, truncating the output to |
| 1710 | * 8 bytes would still work. |
| 1711 | */ |
| 1712 | static int smp_fetch_base32_src(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1713 | { |
| 1714 | struct buffer *temp; |
| 1715 | struct connection *cli_conn = objt_conn(smp->sess->origin); |
| 1716 | |
| 1717 | if (!cli_conn) |
| 1718 | return 0; |
| 1719 | |
| 1720 | if (!smp_fetch_base32(args, smp, kw, private)) |
| 1721 | return 0; |
| 1722 | |
| 1723 | temp = get_trash_chunk(); |
| 1724 | *(unsigned int *) temp->area = htonl(smp->data.u.sint); |
| 1725 | temp->data += sizeof(unsigned int); |
| 1726 | |
| 1727 | switch (cli_conn->addr.from.ss_family) { |
| 1728 | case AF_INET: |
| 1729 | memcpy(temp->area + temp->data, |
| 1730 | &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, |
| 1731 | 4); |
| 1732 | temp->data += 4; |
| 1733 | break; |
| 1734 | case AF_INET6: |
| 1735 | memcpy(temp->area + temp->data, |
| 1736 | &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, |
| 1737 | 16); |
| 1738 | temp->data += 16; |
| 1739 | break; |
| 1740 | default: |
| 1741 | return 0; |
| 1742 | } |
| 1743 | |
| 1744 | smp->data.u.str = *temp; |
| 1745 | smp->data.type = SMP_T_BIN; |
| 1746 | return 1; |
| 1747 | } |
| 1748 | |
| 1749 | /* Extracts the query string, which comes after the question mark '?'. If no |
| 1750 | * question mark is found, nothing is returned. Otherwise it returns a sample |
| 1751 | * of type string carrying the whole query string. |
| 1752 | */ |
| 1753 | static int smp_fetch_query(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1754 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1755 | char *ptr, *end; |
| 1756 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1757 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1758 | /* HTX version */ |
| 1759 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1760 | union h1_sl sl; |
| 1761 | |
| 1762 | if (!htx) |
| 1763 | return 0; |
| 1764 | |
| 1765 | sl = http_find_stline(htx); |
| 1766 | ptr = sl.rq.u.ptr; |
| 1767 | end = sl.rq.u.ptr + sl.rq.u.len; |
| 1768 | } |
| 1769 | else { |
| 1770 | /* LEGACY version */ |
| 1771 | struct http_txn *txn; |
| 1772 | |
| 1773 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1774 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1775 | txn = smp->strm->txn; |
| 1776 | ptr = ci_head(txn->req.chn) + txn->req.sl.rq.u; |
| 1777 | end = ptr + txn->req.sl.rq.u_l; |
| 1778 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1779 | |
| 1780 | /* look up the '?' */ |
| 1781 | do { |
| 1782 | if (ptr == end) |
| 1783 | return 0; |
| 1784 | } while (*ptr++ != '?'); |
| 1785 | |
| 1786 | smp->data.type = SMP_T_STR; |
| 1787 | smp->data.u.str.area = ptr; |
| 1788 | smp->data.u.str.data = end - ptr; |
| 1789 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 1790 | return 1; |
| 1791 | } |
| 1792 | |
| 1793 | static int smp_fetch_proto_http(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1794 | { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1795 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1796 | /* HTX version */ |
| 1797 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1798 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1799 | if (!htx) |
| 1800 | return 0; |
| 1801 | } |
| 1802 | else { |
| 1803 | /* LEGACY version */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1804 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1805 | /* Note: hdr_idx.v cannot be NULL in this ACL because the ACL is tagged |
| 1806 | * as a layer7 ACL, which involves automatic allocation of hdr_idx. |
| 1807 | */ |
| 1808 | CHECK_HTTP_MESSAGE_FIRST_PERM(); |
| 1809 | } |
| 1810 | smp->data.type = SMP_T_BOOL; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1811 | smp->data.u.sint = 1; |
| 1812 | return 1; |
| 1813 | } |
| 1814 | |
| 1815 | /* return a valid test if the current request is the first one on the connection */ |
| 1816 | static int smp_fetch_http_first_req(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1817 | { |
| 1818 | smp->data.type = SMP_T_BOOL; |
| 1819 | smp->data.u.sint = !(smp->strm->txn->flags & TX_NOT_FIRST); |
| 1820 | return 1; |
| 1821 | } |
| 1822 | |
| 1823 | /* Accepts exactly 1 argument of type userlist */ |
| 1824 | static int smp_fetch_http_auth(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1825 | { |
| 1826 | |
| 1827 | if (!args || args->type != ARGT_USR) |
| 1828 | return 0; |
| 1829 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1830 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1831 | /* HTX version */ |
| 1832 | struct htx *htx = smp_prefetch_htx(smp, args); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1833 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1834 | if (!htx) |
| 1835 | return 0; |
| 1836 | } |
| 1837 | else { |
| 1838 | /* LEGACY version */ |
| 1839 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1840 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1841 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1842 | if (!get_http_auth(smp)) |
| 1843 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1844 | smp->data.type = SMP_T_BOOL; |
| 1845 | 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] | 1846 | smp->strm->txn->auth.pass); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1847 | return 1; |
| 1848 | } |
| 1849 | |
| 1850 | /* Accepts exactly 1 argument of type userlist */ |
| 1851 | static int smp_fetch_http_auth_grp(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1852 | { |
| 1853 | if (!args || args->type != ARGT_USR) |
| 1854 | return 0; |
| 1855 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1856 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 1857 | /* HTX version */ |
| 1858 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 1859 | |
| 1860 | if (!htx) |
| 1861 | return 0; |
| 1862 | } |
| 1863 | else { |
| 1864 | /* LEGACY version */ |
| 1865 | CHECK_HTTP_MESSAGE_FIRST(); |
| 1866 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1867 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 1868 | if (!get_http_auth(smp)) |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1869 | return 0; |
| 1870 | |
| 1871 | /* if the user does not belong to the userlist or has a wrong password, |
| 1872 | * report that it unconditionally does not match. Otherwise we return |
| 1873 | * a string containing the username. |
| 1874 | */ |
| 1875 | if (!check_user(args->data.usr, smp->strm->txn->auth.user, |
| 1876 | smp->strm->txn->auth.pass)) |
| 1877 | return 0; |
| 1878 | |
| 1879 | /* pat_match_auth() will need the user list */ |
| 1880 | smp->ctx.a[0] = args->data.usr; |
| 1881 | |
| 1882 | smp->data.type = SMP_T_STR; |
| 1883 | smp->flags = SMP_F_CONST; |
| 1884 | smp->data.u.str.area = smp->strm->txn->auth.user; |
| 1885 | smp->data.u.str.data = strlen(smp->strm->txn->auth.user); |
| 1886 | |
| 1887 | return 1; |
| 1888 | } |
| 1889 | |
| 1890 | /* Fetch a captured HTTP request header. The index is the position of |
| 1891 | * the "capture" option in the configuration file |
| 1892 | */ |
| 1893 | static int smp_fetch_capture_req_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1894 | { |
| 1895 | struct proxy *fe = strm_fe(smp->strm); |
| 1896 | int idx; |
| 1897 | |
| 1898 | if (!args || args->type != ARGT_SINT) |
| 1899 | return 0; |
| 1900 | |
| 1901 | idx = args->data.sint; |
| 1902 | |
| 1903 | if (idx > (fe->nb_req_cap - 1) || smp->strm->req_cap == NULL || smp->strm->req_cap[idx] == NULL) |
| 1904 | return 0; |
| 1905 | |
| 1906 | smp->data.type = SMP_T_STR; |
| 1907 | smp->flags |= SMP_F_CONST; |
| 1908 | smp->data.u.str.area = smp->strm->req_cap[idx]; |
| 1909 | smp->data.u.str.data = strlen(smp->strm->req_cap[idx]); |
| 1910 | |
| 1911 | return 1; |
| 1912 | } |
| 1913 | |
| 1914 | /* Fetch a captured HTTP response header. The index is the position of |
| 1915 | * the "capture" option in the configuration file |
| 1916 | */ |
| 1917 | static int smp_fetch_capture_res_hdr(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1918 | { |
| 1919 | struct proxy *fe = strm_fe(smp->strm); |
| 1920 | int idx; |
| 1921 | |
| 1922 | if (!args || args->type != ARGT_SINT) |
| 1923 | return 0; |
| 1924 | |
| 1925 | idx = args->data.sint; |
| 1926 | |
| 1927 | if (idx > (fe->nb_rsp_cap - 1) || smp->strm->res_cap == NULL || smp->strm->res_cap[idx] == NULL) |
| 1928 | return 0; |
| 1929 | |
| 1930 | smp->data.type = SMP_T_STR; |
| 1931 | smp->flags |= SMP_F_CONST; |
| 1932 | smp->data.u.str.area = smp->strm->res_cap[idx]; |
| 1933 | smp->data.u.str.data = strlen(smp->strm->res_cap[idx]); |
| 1934 | |
| 1935 | return 1; |
| 1936 | } |
| 1937 | |
| 1938 | /* Extracts the METHOD in the HTTP request, the txn->uri should be filled before the call */ |
| 1939 | static int smp_fetch_capture_req_method(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1940 | { |
| 1941 | struct buffer *temp; |
| 1942 | struct http_txn *txn = smp->strm->txn; |
| 1943 | char *ptr; |
| 1944 | |
| 1945 | if (!txn || !txn->uri) |
| 1946 | return 0; |
| 1947 | |
| 1948 | ptr = txn->uri; |
| 1949 | |
| 1950 | while (*ptr != ' ' && *ptr != '\0') /* find first space */ |
| 1951 | ptr++; |
| 1952 | |
| 1953 | temp = get_trash_chunk(); |
| 1954 | temp->area = txn->uri; |
| 1955 | temp->data = ptr - txn->uri; |
| 1956 | smp->data.u.str = *temp; |
| 1957 | smp->data.type = SMP_T_STR; |
| 1958 | smp->flags = SMP_F_CONST; |
| 1959 | |
| 1960 | return 1; |
| 1961 | |
| 1962 | } |
| 1963 | |
| 1964 | /* Extracts the path in the HTTP request, the txn->uri should be filled before the call */ |
| 1965 | static int smp_fetch_capture_req_uri(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 1966 | { |
| 1967 | struct http_txn *txn = smp->strm->txn; |
| 1968 | struct ist path; |
| 1969 | const char *ptr; |
| 1970 | |
| 1971 | if (!txn || !txn->uri) |
| 1972 | return 0; |
| 1973 | |
| 1974 | ptr = txn->uri; |
| 1975 | |
| 1976 | while (*ptr != ' ' && *ptr != '\0') /* find first space */ |
| 1977 | ptr++; |
| 1978 | |
| 1979 | if (!*ptr) |
| 1980 | return 0; |
| 1981 | |
Christopher Faulet | 78337bb | 2018-11-15 14:35:18 +0100 | [diff] [blame] | 1982 | /* skip the first space and find space after URI */ |
| 1983 | path = ist2(++ptr, 0); |
| 1984 | while (*ptr != ' ' && *ptr != '\0') |
| 1985 | ptr++; |
| 1986 | path.len = ptr - path.ptr; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1987 | |
Christopher Faulet | 78337bb | 2018-11-15 14:35:18 +0100 | [diff] [blame] | 1988 | path = http_get_path(path); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 1989 | if (!path.ptr) |
| 1990 | return 0; |
| 1991 | |
| 1992 | smp->data.u.str.area = path.ptr; |
| 1993 | smp->data.u.str.data = path.len; |
| 1994 | smp->data.type = SMP_T_STR; |
| 1995 | smp->flags = SMP_F_CONST; |
| 1996 | |
| 1997 | return 1; |
| 1998 | } |
| 1999 | |
| 2000 | /* Retrieves the HTTP version from the request (either 1.0 or 1.1) and emits it |
| 2001 | * as a string (either "HTTP/1.0" or "HTTP/1.1"). |
| 2002 | */ |
| 2003 | static int smp_fetch_capture_req_ver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2004 | { |
| 2005 | struct http_txn *txn = smp->strm->txn; |
| 2006 | |
| 2007 | if (!txn || txn->req.msg_state < HTTP_MSG_HDR_FIRST) |
| 2008 | return 0; |
| 2009 | |
| 2010 | if (txn->req.flags & HTTP_MSGF_VER_11) |
| 2011 | smp->data.u.str.area = "HTTP/1.1"; |
| 2012 | else |
| 2013 | smp->data.u.str.area = "HTTP/1.0"; |
| 2014 | |
| 2015 | smp->data.u.str.data = 8; |
| 2016 | smp->data.type = SMP_T_STR; |
| 2017 | smp->flags = SMP_F_CONST; |
| 2018 | return 1; |
| 2019 | |
| 2020 | } |
| 2021 | |
| 2022 | /* Retrieves the HTTP version from the response (either 1.0 or 1.1) and emits it |
| 2023 | * as a string (either "HTTP/1.0" or "HTTP/1.1"). |
| 2024 | */ |
| 2025 | static int smp_fetch_capture_res_ver(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2026 | { |
| 2027 | struct http_txn *txn = smp->strm->txn; |
| 2028 | |
| 2029 | if (!txn || txn->rsp.msg_state < HTTP_MSG_HDR_FIRST) |
| 2030 | return 0; |
| 2031 | |
| 2032 | if (txn->rsp.flags & HTTP_MSGF_VER_11) |
| 2033 | smp->data.u.str.area = "HTTP/1.1"; |
| 2034 | else |
| 2035 | smp->data.u.str.area = "HTTP/1.0"; |
| 2036 | |
| 2037 | smp->data.u.str.data = 8; |
| 2038 | smp->data.type = SMP_T_STR; |
| 2039 | smp->flags = SMP_F_CONST; |
| 2040 | return 1; |
| 2041 | |
| 2042 | } |
| 2043 | |
| 2044 | /* Iterate over all cookies present in a message. The context is stored in |
| 2045 | * smp->ctx.a[0] for the in-header position, smp->ctx.a[1] for the |
| 2046 | * end-of-header-value, and smp->ctx.a[2] for the hdr_ctx. Depending on |
| 2047 | * the direction, multiple cookies may be parsed on the same line or not. |
| 2048 | * The cookie name is in args and the name length in args->data.str.len. |
| 2049 | * Accepts exactly 1 argument of type string. If the input options indicate |
| 2050 | * that no iterating is desired, then only last value is fetched if any. |
| 2051 | * The returned sample is of type CSTR. Can be used to parse cookies in other |
| 2052 | * files. |
| 2053 | */ |
| 2054 | static int smp_fetch_cookie(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2055 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2056 | int occ = 0; |
| 2057 | int found = 0; |
| 2058 | |
| 2059 | if (!args || args->type != ARGT_STR) |
| 2060 | return 0; |
| 2061 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2062 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2063 | /* HTX version */ |
| 2064 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2065 | struct http_hdr_ctx *ctx = smp->ctx.a[2]; |
| 2066 | struct ist hdr; |
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 (!ctx) { |
| 2069 | /* first call */ |
| 2070 | ctx = &static_http_hdr_ctx; |
| 2071 | ctx->blk = NULL; |
| 2072 | smp->ctx.a[2] = ctx; |
| 2073 | } |
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 (!htx) |
| 2076 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2077 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2078 | hdr = (((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2079 | ? ist("Cookie") |
| 2080 | : ist("Set-Cookie")); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2081 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2082 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 2083 | /* no explicit occurrence and single fetch => last cookie by default */ |
| 2084 | occ = -1; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2085 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2086 | /* OK so basically here, either we want only one value and it's the |
| 2087 | * last one, or we want to iterate over all of them and we fetch the |
| 2088 | * next one. |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2089 | */ |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2090 | |
| 2091 | if (!(smp->flags & SMP_F_NOT_LAST)) { |
| 2092 | /* search for the header from the beginning, we must first initialize |
| 2093 | * the search parameters. |
| 2094 | */ |
| 2095 | smp->ctx.a[0] = NULL; |
| 2096 | ctx->blk = NULL; |
| 2097 | } |
| 2098 | |
| 2099 | smp->flags |= SMP_F_VOL_HDR; |
| 2100 | while (1) { |
| 2101 | /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */ |
| 2102 | if (!smp->ctx.a[0]) { |
| 2103 | if (!http_find_header(htx, hdr, ctx, 0)) |
| 2104 | goto out; |
| 2105 | |
| 2106 | if (ctx->value.len < args->data.str.data + 1) |
| 2107 | continue; |
| 2108 | |
| 2109 | smp->ctx.a[0] = ctx->value.ptr; |
| 2110 | smp->ctx.a[1] = smp->ctx.a[0] + ctx->value.len; |
| 2111 | } |
| 2112 | |
| 2113 | smp->data.type = SMP_T_STR; |
| 2114 | smp->flags |= SMP_F_CONST; |
| 2115 | smp->ctx.a[0] = http_extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1], |
| 2116 | args->data.str.area, args->data.str.data, |
| 2117 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2118 | &smp->data.u.str.area, |
| 2119 | &smp->data.u.str.data); |
| 2120 | if (smp->ctx.a[0]) { |
| 2121 | found = 1; |
| 2122 | if (occ >= 0) { |
| 2123 | /* one value was returned into smp->data.u.str.{str,len} */ |
| 2124 | smp->flags |= SMP_F_NOT_LAST; |
| 2125 | return 1; |
| 2126 | } |
| 2127 | } |
| 2128 | /* if we're looking for last occurrence, let's loop */ |
| 2129 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2130 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2131 | else { |
| 2132 | /* LEGACY version */ |
| 2133 | struct http_txn *txn; |
| 2134 | struct hdr_idx *idx; |
| 2135 | struct hdr_ctx *ctx = smp->ctx.a[2]; |
| 2136 | const struct http_msg *msg; |
| 2137 | const char *hdr_name; |
| 2138 | int hdr_name_len; |
| 2139 | char *sol; |
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 | if (!ctx) { |
| 2142 | /* first call */ |
| 2143 | ctx = &static_hdr_ctx; |
| 2144 | ctx->idx = 0; |
| 2145 | smp->ctx.a[2] = ctx; |
| 2146 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2147 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2148 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2149 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2150 | txn = smp->strm->txn; |
| 2151 | idx = &smp->strm->txn->hdr_idx; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2152 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2153 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 2154 | msg = &txn->req; |
| 2155 | hdr_name = "Cookie"; |
| 2156 | hdr_name_len = 6; |
| 2157 | } else { |
| 2158 | msg = &txn->rsp; |
| 2159 | hdr_name = "Set-Cookie"; |
| 2160 | hdr_name_len = 10; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2161 | } |
| 2162 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2163 | if (!occ && !(smp->opt & SMP_OPT_ITERATE)) |
| 2164 | /* no explicit occurrence and single fetch => last cookie by default */ |
| 2165 | occ = -1; |
| 2166 | |
| 2167 | /* OK so basically here, either we want only one value and it's the |
| 2168 | * last one, or we want to iterate over all of them and we fetch the |
| 2169 | * next one. |
| 2170 | */ |
| 2171 | |
| 2172 | sol = ci_head(msg->chn); |
| 2173 | if (!(smp->flags & SMP_F_NOT_LAST)) { |
| 2174 | /* search for the header from the beginning, we must first initialize |
| 2175 | * the search parameters. |
| 2176 | */ |
| 2177 | smp->ctx.a[0] = NULL; |
| 2178 | ctx->idx = 0; |
| 2179 | } |
| 2180 | |
| 2181 | smp->flags |= SMP_F_VOL_HDR; |
| 2182 | |
| 2183 | while (1) { |
| 2184 | /* Note: smp->ctx.a[0] == NULL every time we need to fetch a new header */ |
| 2185 | if (!smp->ctx.a[0]) { |
| 2186 | if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, ctx)) |
| 2187 | goto out; |
| 2188 | |
| 2189 | if (ctx->vlen < args->data.str.data + 1) |
| 2190 | continue; |
| 2191 | |
| 2192 | smp->ctx.a[0] = ctx->line + ctx->val; |
| 2193 | smp->ctx.a[1] = smp->ctx.a[0] + ctx->vlen; |
| 2194 | } |
| 2195 | |
| 2196 | smp->data.type = SMP_T_STR; |
| 2197 | smp->flags |= SMP_F_CONST; |
| 2198 | smp->ctx.a[0] = http_extract_cookie_value(smp->ctx.a[0], smp->ctx.a[1], |
| 2199 | args->data.str.area, args->data.str.data, |
| 2200 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2201 | &smp->data.u.str.area, &smp->data.u.str.data); |
| 2202 | if (smp->ctx.a[0]) { |
| 2203 | found = 1; |
| 2204 | if (occ >= 0) { |
| 2205 | /* one value was returned into smp->data.u.str.{str,len} */ |
| 2206 | smp->flags |= SMP_F_NOT_LAST; |
| 2207 | return 1; |
| 2208 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2209 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2210 | /* if we're looking for last occurrence, let's loop */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2211 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2212 | } |
| 2213 | /* all cookie headers and values were scanned. If we're looking for the |
| 2214 | * last occurrence, we may return it now. |
| 2215 | */ |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2216 | out: |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2217 | smp->flags &= ~SMP_F_NOT_LAST; |
| 2218 | return found; |
| 2219 | } |
| 2220 | |
| 2221 | /* Iterate over all cookies present in a request to count how many occurrences |
| 2222 | * match the name in args and args->data.str.len. If <multi> is non-null, then |
| 2223 | * multiple cookies may be parsed on the same line. The returned sample is of |
| 2224 | * type UINT. Accepts exactly 1 argument of type string. |
| 2225 | */ |
| 2226 | static int smp_fetch_cookie_cnt(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2227 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2228 | char *val_beg, *val_end; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2229 | int cnt; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2230 | |
| 2231 | if (!args || args->type != ARGT_STR) |
| 2232 | return 0; |
| 2233 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2234 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2235 | /* HTX version */ |
| 2236 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2237 | struct http_hdr_ctx ctx; |
| 2238 | struct ist hdr; |
| 2239 | |
| 2240 | if (!htx) |
| 2241 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2242 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2243 | hdr = (((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2244 | ? ist("Cookie") |
| 2245 | : ist("Set-Cookie")); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2246 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2247 | val_end = val_beg = NULL; |
| 2248 | ctx.blk = NULL; |
| 2249 | cnt = 0; |
| 2250 | while (1) { |
| 2251 | /* Note: val_beg == NULL every time we need to fetch a new header */ |
| 2252 | if (!val_beg) { |
| 2253 | if (!http_find_header(htx, hdr, &ctx, 0)) |
| 2254 | break; |
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 | if (ctx.value.len < args->data.str.data + 1) |
| 2257 | continue; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2258 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2259 | val_beg = ctx.value.ptr; |
| 2260 | val_end = val_beg + ctx.value.len; |
| 2261 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2262 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2263 | smp->data.type = SMP_T_STR; |
| 2264 | smp->flags |= SMP_F_CONST; |
| 2265 | while ((val_beg = http_extract_cookie_value(val_beg, val_end, |
| 2266 | args->data.str.area, args->data.str.data, |
| 2267 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2268 | &smp->data.u.str.area, |
| 2269 | &smp->data.u.str.data))) { |
| 2270 | cnt++; |
| 2271 | } |
| 2272 | } |
| 2273 | } |
| 2274 | else { |
| 2275 | /* LEGACY version */ |
| 2276 | struct http_txn *txn; |
| 2277 | struct hdr_idx *idx; |
| 2278 | struct hdr_ctx ctx; |
| 2279 | const struct http_msg *msg; |
| 2280 | const char *hdr_name; |
| 2281 | int hdr_name_len; |
| 2282 | char *sol; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2283 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2284 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2285 | |
| 2286 | txn = smp->strm->txn; |
| 2287 | idx = &smp->strm->txn->hdr_idx; |
| 2288 | |
| 2289 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) { |
| 2290 | msg = &txn->req; |
| 2291 | hdr_name = "Cookie"; |
| 2292 | hdr_name_len = 6; |
| 2293 | } else { |
| 2294 | msg = &txn->rsp; |
| 2295 | hdr_name = "Set-Cookie"; |
| 2296 | hdr_name_len = 10; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2297 | } |
| 2298 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2299 | sol = ci_head(msg->chn); |
| 2300 | val_end = val_beg = NULL; |
| 2301 | ctx.idx = 0; |
| 2302 | cnt = 0; |
| 2303 | |
| 2304 | while (1) { |
| 2305 | /* Note: val_beg == NULL every time we need to fetch a new header */ |
| 2306 | if (!val_beg) { |
| 2307 | if (!http_find_header2(hdr_name, hdr_name_len, sol, idx, &ctx)) |
| 2308 | break; |
| 2309 | |
| 2310 | if (ctx.vlen < args->data.str.data + 1) |
| 2311 | continue; |
| 2312 | |
| 2313 | val_beg = ctx.line + ctx.val; |
| 2314 | val_end = val_beg + ctx.vlen; |
| 2315 | } |
| 2316 | |
| 2317 | smp->data.type = SMP_T_STR; |
| 2318 | smp->flags |= SMP_F_CONST; |
| 2319 | while ((val_beg = http_extract_cookie_value(val_beg, val_end, |
| 2320 | args->data.str.area, args->data.str.data, |
| 2321 | (smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ, |
| 2322 | &smp->data.u.str.area, &smp->data.u.str.data))) { |
| 2323 | cnt++; |
| 2324 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2325 | } |
| 2326 | } |
| 2327 | |
| 2328 | smp->data.type = SMP_T_SINT; |
| 2329 | smp->data.u.sint = cnt; |
| 2330 | smp->flags |= SMP_F_VOL_HDR; |
| 2331 | return 1; |
| 2332 | } |
| 2333 | |
| 2334 | /* Fetch an cookie's integer value. The integer value is returned. It |
| 2335 | * takes a mandatory argument of type string. It relies on smp_fetch_cookie(). |
| 2336 | */ |
| 2337 | static int smp_fetch_cookie_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2338 | { |
| 2339 | int ret = smp_fetch_cookie(args, smp, kw, private); |
| 2340 | |
| 2341 | if (ret > 0) { |
| 2342 | smp->data.type = SMP_T_SINT; |
| 2343 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 2344 | smp->data.u.str.data); |
| 2345 | } |
| 2346 | |
| 2347 | return ret; |
| 2348 | } |
| 2349 | |
| 2350 | /************************************************************************/ |
| 2351 | /* The code below is dedicated to sample fetches */ |
| 2352 | /************************************************************************/ |
| 2353 | |
| 2354 | /* This scans a URL-encoded query string. It takes an optionally wrapping |
| 2355 | * string whose first contigous chunk has its beginning in ctx->a[0] and end |
| 2356 | * in ctx->a[1], and the optional second part in (ctx->a[2]..ctx->a[3]). The |
| 2357 | * pointers are updated for next iteration before leaving. |
| 2358 | */ |
| 2359 | 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) |
| 2360 | { |
| 2361 | const char *vstart, *vend; |
| 2362 | struct buffer *temp; |
| 2363 | const char **chunks = (const char **)smp->ctx.a; |
| 2364 | |
| 2365 | if (!http_find_next_url_param(chunks, name, name_len, |
| 2366 | &vstart, &vend, delim)) |
| 2367 | return 0; |
| 2368 | |
| 2369 | /* Create sample. If the value is contiguous, return the pointer as CONST, |
| 2370 | * if the value is wrapped, copy-it in a buffer. |
| 2371 | */ |
| 2372 | smp->data.type = SMP_T_STR; |
| 2373 | if (chunks[2] && |
| 2374 | vstart >= chunks[0] && vstart <= chunks[1] && |
| 2375 | vend >= chunks[2] && vend <= chunks[3]) { |
| 2376 | /* Wrapped case. */ |
| 2377 | temp = get_trash_chunk(); |
| 2378 | memcpy(temp->area, vstart, chunks[1] - vstart); |
| 2379 | memcpy(temp->area + ( chunks[1] - vstart ), chunks[2], |
| 2380 | vend - chunks[2]); |
| 2381 | smp->data.u.str.area = temp->area; |
| 2382 | smp->data.u.str.data = ( chunks[1] - vstart ) + ( vend - chunks[2] ); |
| 2383 | } else { |
| 2384 | /* Contiguous case. */ |
| 2385 | smp->data.u.str.area = (char *)vstart; |
| 2386 | smp->data.u.str.data = vend - vstart; |
| 2387 | smp->flags = SMP_F_VOL_1ST | SMP_F_CONST; |
| 2388 | } |
| 2389 | |
| 2390 | /* Update context, check wrapping. */ |
| 2391 | chunks[0] = vend; |
| 2392 | if (chunks[2] && vend >= chunks[2] && vend <= chunks[3]) { |
| 2393 | chunks[1] = chunks[3]; |
| 2394 | chunks[2] = NULL; |
| 2395 | } |
| 2396 | |
| 2397 | if (chunks[0] < chunks[1]) |
| 2398 | smp->flags |= SMP_F_NOT_LAST; |
| 2399 | |
| 2400 | return 1; |
| 2401 | } |
| 2402 | |
| 2403 | /* This function iterates over each parameter of the query string. It uses |
| 2404 | * ctx->a[0] and ctx->a[1] to store the beginning and end of the current |
| 2405 | * parameter. Since it uses smp_fetch_param(), ctx->a[2..3] are both NULL. |
| 2406 | * An optional parameter name is passed in args[0], otherwise any parameter is |
| 2407 | * considered. It supports an optional delimiter argument for the beginning of |
| 2408 | * the string in args[1], which defaults to "?". |
| 2409 | */ |
| 2410 | static int smp_fetch_url_param(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2411 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2412 | char delim = '?'; |
| 2413 | const char *name; |
| 2414 | int name_len; |
| 2415 | |
| 2416 | if (!args || |
| 2417 | (args[0].type && args[0].type != ARGT_STR) || |
| 2418 | (args[1].type && args[1].type != ARGT_STR)) |
| 2419 | return 0; |
| 2420 | |
| 2421 | name = ""; |
| 2422 | name_len = 0; |
| 2423 | if (args->type == ARGT_STR) { |
| 2424 | name = args->data.str.area; |
| 2425 | name_len = args->data.str.data; |
| 2426 | } |
| 2427 | |
| 2428 | if (args[1].type) |
| 2429 | delim = *args[1].data.str.area; |
| 2430 | |
| 2431 | if (!smp->ctx.a[0]) { // first call, find the query string |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2432 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2433 | /* HTX version */ |
| 2434 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2435 | union h1_sl sl; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2436 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2437 | if (!htx) |
| 2438 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2439 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2440 | sl = http_find_stline(htx); |
| 2441 | smp->ctx.a[0] = http_find_param_list(sl.rq.u.ptr, sl.rq.u.len, delim); |
| 2442 | if (!smp->ctx.a[0]) |
| 2443 | return 0; |
| 2444 | |
| 2445 | smp->ctx.a[1] = sl.rq.u.ptr + sl.rq.u.len; |
| 2446 | } |
| 2447 | else { |
| 2448 | /* LEGACY version */ |
| 2449 | struct http_msg *msg; |
| 2450 | |
| 2451 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2452 | |
| 2453 | msg = &smp->strm->txn->req; |
| 2454 | |
| 2455 | smp->ctx.a[0] = http_find_param_list(ci_head(msg->chn) + msg->sl.rq.u, |
| 2456 | msg->sl.rq.u_l, delim); |
| 2457 | if (!smp->ctx.a[0]) |
| 2458 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2459 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2460 | smp->ctx.a[1] = ci_head(msg->chn) + msg->sl.rq.u + msg->sl.rq.u_l; |
| 2461 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2462 | |
| 2463 | /* Assume that the context is filled with NULL pointer |
| 2464 | * before the first call. |
| 2465 | * smp->ctx.a[2] = NULL; |
| 2466 | * smp->ctx.a[3] = NULL; |
| 2467 | */ |
| 2468 | } |
| 2469 | |
| 2470 | return smp_fetch_param(delim, name, name_len, args, smp, kw, private); |
| 2471 | } |
| 2472 | |
| 2473 | /* This function iterates over each parameter of the body. This requires |
| 2474 | * that the body has been waited for using http-buffer-request. It uses |
| 2475 | * ctx->a[0] and ctx->a[1] to store the beginning and end of the first |
| 2476 | * contigous part of the body, and optionally ctx->a[2..3] to reference the |
| 2477 | * optional second part if the body wraps at the end of the buffer. An optional |
| 2478 | * parameter name is passed in args[0], otherwise any parameter is considered. |
| 2479 | */ |
| 2480 | static int smp_fetch_body_param(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2481 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2482 | const char *name; |
| 2483 | int name_len; |
| 2484 | |
| 2485 | if (!args || (args[0].type && args[0].type != ARGT_STR)) |
| 2486 | return 0; |
| 2487 | |
| 2488 | name = ""; |
| 2489 | name_len = 0; |
| 2490 | if (args[0].type == ARGT_STR) { |
| 2491 | name = args[0].data.str.area; |
| 2492 | name_len = args[0].data.str.data; |
| 2493 | } |
| 2494 | |
| 2495 | if (!smp->ctx.a[0]) { // first call, find the query string |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2496 | if (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2497 | /* HTX version */ |
| 2498 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2499 | struct buffer *temp; |
| 2500 | int32_t pos; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2501 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2502 | if (!htx) |
| 2503 | return 0; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2504 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2505 | temp = get_trash_chunk(); |
| 2506 | for (pos = htx_get_head(htx); pos != -1; pos = htx_get_next(htx, pos)) { |
| 2507 | struct htx_blk *blk = htx_get_blk(htx, pos); |
| 2508 | enum htx_blk_type type = htx_get_blk_type(blk); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2509 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2510 | if (type == HTX_BLK_EOM || type == HTX_BLK_EOD) |
| 2511 | break; |
| 2512 | if (type == HTX_BLK_DATA) { |
| 2513 | if (!htx_data_to_str(htx_get_blk_value(htx, blk), temp, 0)) |
| 2514 | return 0; |
| 2515 | } |
| 2516 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2517 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2518 | smp->ctx.a[0] = temp->area; |
| 2519 | smp->ctx.a[1] = temp->area + temp->data; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2520 | |
| 2521 | /* Assume that the context is filled with NULL pointer |
| 2522 | * before the first call. |
| 2523 | * smp->ctx.a[2] = NULL; |
| 2524 | * smp->ctx.a[3] = NULL; |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2525 | */ |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2526 | } |
| 2527 | else { |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2528 | /* LEGACY version */ |
| 2529 | struct http_msg *msg; |
| 2530 | unsigned long len; |
| 2531 | unsigned long block1; |
| 2532 | char *body; |
| 2533 | |
| 2534 | CHECK_HTTP_MESSAGE_FIRST(); |
| 2535 | |
| 2536 | if ((smp->opt & SMP_OPT_DIR) == SMP_OPT_DIR_REQ) |
| 2537 | msg = &smp->strm->txn->req; |
| 2538 | else |
| 2539 | msg = &smp->strm->txn->rsp; |
| 2540 | |
| 2541 | len = http_body_bytes(msg); |
| 2542 | body = c_ptr(msg->chn, -http_data_rewind(msg)); |
| 2543 | |
| 2544 | block1 = len; |
| 2545 | if (block1 > b_wrap(&msg->chn->buf) - body) |
| 2546 | block1 = b_wrap(&msg->chn->buf) - body; |
| 2547 | |
| 2548 | if (block1 == len) { |
| 2549 | /* buffer is not wrapped (or empty) */ |
| 2550 | smp->ctx.a[0] = body; |
| 2551 | smp->ctx.a[1] = body + len; |
| 2552 | |
| 2553 | /* Assume that the context is filled with NULL pointer |
| 2554 | * before the first call. |
| 2555 | * smp->ctx.a[2] = NULL; |
| 2556 | * smp->ctx.a[3] = NULL; |
| 2557 | */ |
| 2558 | } |
| 2559 | else { |
| 2560 | /* buffer is wrapped, we need to defragment it */ |
| 2561 | smp->ctx.a[0] = body; |
| 2562 | smp->ctx.a[1] = body + block1; |
| 2563 | smp->ctx.a[2] = b_orig(&msg->chn->buf); |
| 2564 | smp->ctx.a[3] = b_orig(&msg->chn->buf) + ( len - block1 ); |
| 2565 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2566 | } |
| 2567 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2568 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2569 | return smp_fetch_param('&', name, name_len, args, smp, kw, private); |
| 2570 | } |
| 2571 | |
| 2572 | /* Return the signed integer value for the specified url parameter (see url_param |
| 2573 | * above). |
| 2574 | */ |
| 2575 | static int smp_fetch_url_param_val(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2576 | { |
| 2577 | int ret = smp_fetch_url_param(args, smp, kw, private); |
| 2578 | |
| 2579 | if (ret > 0) { |
| 2580 | smp->data.type = SMP_T_SINT; |
| 2581 | smp->data.u.sint = strl2ic(smp->data.u.str.area, |
| 2582 | smp->data.u.str.data); |
| 2583 | } |
| 2584 | |
| 2585 | return ret; |
| 2586 | } |
| 2587 | |
| 2588 | /* This produces a 32-bit hash of the concatenation of the first occurrence of |
| 2589 | * the Host header followed by the path component if it begins with a slash ('/'). |
| 2590 | * This means that '*' will not be added, resulting in exactly the first Host |
| 2591 | * entry. If no Host header is found, then the path is used. The resulting value |
| 2592 | * is hashed using the url hash followed by a full avalanche hash and provides a |
| 2593 | * 32-bit integer value. This fetch is useful for tracking per-URL activity on |
| 2594 | * high-traffic sites without having to store whole paths. |
| 2595 | * this differs from the base32 functions in that it includes the url parameters |
| 2596 | * as well as the path |
| 2597 | */ |
| 2598 | static int smp_fetch_url32(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2599 | { |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2600 | unsigned int hash = 0; |
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 (IS_HTX_SMP(smp) || (smp->px->mode == PR_MODE_TCP)) { |
| 2603 | /* HTX version */ |
| 2604 | struct htx *htx = smp_prefetch_htx(smp, args); |
| 2605 | struct http_hdr_ctx ctx; |
| 2606 | union h1_sl sl; |
| 2607 | struct ist path; |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2608 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2609 | if (!htx) |
| 2610 | return 0; |
| 2611 | |
| 2612 | ctx.blk = NULL; |
| 2613 | if (http_find_header(htx, ist("Host"), &ctx, 1)) { |
| 2614 | /* OK we have the header value in ctx.value */ |
| 2615 | while (ctx.value.len--) |
| 2616 | hash = *(ctx.value.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2617 | } |
| 2618 | |
| 2619 | /* now retrieve the path */ |
| 2620 | sl = http_find_stline(htx); |
| 2621 | path = http_get_path(sl.rq.u); |
| 2622 | while (path.len > 0 && *(path.ptr) != '?') { |
| 2623 | path.ptr++; |
| 2624 | path.len--; |
| 2625 | } |
| 2626 | if (path.len && *(path.ptr) == '/') { |
| 2627 | while (path.len--) |
| 2628 | hash = *(path.ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2629 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2630 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2631 | else { |
| 2632 | /* LEGACY version */ |
| 2633 | struct http_txn *txn; |
| 2634 | struct hdr_ctx ctx; |
| 2635 | char *ptr, *beg, *end; |
| 2636 | int len; |
| 2637 | |
| 2638 | CHECK_HTTP_MESSAGE_FIRST(); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2639 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2640 | txn = smp->strm->txn; |
| 2641 | ctx.idx = 0; |
| 2642 | if (http_find_header2("Host", 4, ci_head(txn->req.chn), &txn->hdr_idx, &ctx)) { |
| 2643 | /* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */ |
| 2644 | ptr = ctx.line + ctx.val; |
| 2645 | len = ctx.vlen; |
| 2646 | while (len--) |
| 2647 | hash = *(ptr++) + (hash << 6) + (hash << 16) - hash; |
| 2648 | } |
| 2649 | |
| 2650 | /* now retrieve the path */ |
| 2651 | end = ci_head(txn->req.chn) + txn->req.sl.rq.u + txn->req.sl.rq.u_l; |
| 2652 | beg = http_txn_get_path(txn); |
| 2653 | if (!beg) |
| 2654 | beg = end; |
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 | for (ptr = beg; ptr < end ; ptr++); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2657 | |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2658 | if (beg < ptr && *beg == '/') { |
| 2659 | while (beg < ptr) |
| 2660 | hash = *(beg++) + (hash << 6) + (hash << 16) - hash; |
| 2661 | } |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2662 | } |
Christopher Faulet | 311c7ea | 2018-10-24 21:41:55 +0200 | [diff] [blame] | 2663 | |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2664 | hash = full_hash(hash); |
| 2665 | |
| 2666 | smp->data.type = SMP_T_SINT; |
| 2667 | smp->data.u.sint = hash; |
| 2668 | smp->flags = SMP_F_VOL_1ST; |
| 2669 | return 1; |
| 2670 | } |
| 2671 | |
| 2672 | /* This concatenates the source address with the 32-bit hash of the Host and |
| 2673 | * URL as returned by smp_fetch_base32(). The idea is to have per-source and |
| 2674 | * per-url counters. The result is a binary block from 8 to 20 bytes depending |
| 2675 | * on the source address length. The URL hash is stored before the address so |
| 2676 | * that in environments where IPv6 is insignificant, truncating the output to |
| 2677 | * 8 bytes would still work. |
| 2678 | */ |
| 2679 | static int smp_fetch_url32_src(const struct arg *args, struct sample *smp, const char *kw, void *private) |
| 2680 | { |
| 2681 | struct buffer *temp; |
| 2682 | struct connection *cli_conn = objt_conn(smp->sess->origin); |
| 2683 | |
| 2684 | if (!cli_conn) |
| 2685 | return 0; |
| 2686 | |
| 2687 | if (!smp_fetch_url32(args, smp, kw, private)) |
| 2688 | return 0; |
| 2689 | |
| 2690 | temp = get_trash_chunk(); |
| 2691 | *(unsigned int *) temp->area = htonl(smp->data.u.sint); |
| 2692 | temp->data += sizeof(unsigned int); |
| 2693 | |
| 2694 | switch (cli_conn->addr.from.ss_family) { |
| 2695 | case AF_INET: |
| 2696 | memcpy(temp->area + temp->data, |
| 2697 | &((struct sockaddr_in *)&cli_conn->addr.from)->sin_addr, |
| 2698 | 4); |
| 2699 | temp->data += 4; |
| 2700 | break; |
| 2701 | case AF_INET6: |
| 2702 | memcpy(temp->area + temp->data, |
| 2703 | &((struct sockaddr_in6 *)&cli_conn->addr.from)->sin6_addr, |
| 2704 | 16); |
| 2705 | temp->data += 16; |
| 2706 | break; |
| 2707 | default: |
| 2708 | return 0; |
| 2709 | } |
| 2710 | |
| 2711 | smp->data.u.str = *temp; |
| 2712 | smp->data.type = SMP_T_BIN; |
| 2713 | return 1; |
| 2714 | } |
| 2715 | |
| 2716 | /************************************************************************/ |
| 2717 | /* Other utility functions */ |
| 2718 | /************************************************************************/ |
| 2719 | |
| 2720 | /* This function is used to validate the arguments passed to any "hdr" fetch |
| 2721 | * keyword. These keywords support an optional positive or negative occurrence |
| 2722 | * number. We must ensure that the number is greater than -MAX_HDR_HISTORY. It |
| 2723 | * is assumed that the types are already the correct ones. Returns 0 on error, |
| 2724 | * non-zero if OK. If <err> is not NULL, it will be filled with a pointer to an |
| 2725 | * error message in case of error, that the caller is responsible for freeing. |
| 2726 | * The initial location must either be freeable or NULL. |
| 2727 | * Note: this function's pointer is checked from Lua. |
| 2728 | */ |
| 2729 | int val_hdr(struct arg *arg, char **err_msg) |
| 2730 | { |
| 2731 | if (arg && arg[1].type == ARGT_SINT && arg[1].data.sint < -MAX_HDR_HISTORY) { |
| 2732 | memprintf(err_msg, "header occurrence must be >= %d", -MAX_HDR_HISTORY); |
| 2733 | return 0; |
| 2734 | } |
| 2735 | return 1; |
| 2736 | } |
| 2737 | |
| 2738 | /************************************************************************/ |
| 2739 | /* All supported sample fetch keywords must be declared here. */ |
| 2740 | /************************************************************************/ |
| 2741 | |
| 2742 | /* Note: must not be declared <const> as its list will be overwritten */ |
| 2743 | static struct sample_fetch_kw_list sample_fetch_keywords = {ILH, { |
| 2744 | { "base", smp_fetch_base, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2745 | { "base32", smp_fetch_base32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2746 | { "base32+src", smp_fetch_base32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2747 | |
| 2748 | /* capture are allocated and are permanent in the stream */ |
| 2749 | { "capture.req.hdr", smp_fetch_capture_req_hdr, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2750 | |
| 2751 | /* retrieve these captures from the HTTP logs */ |
| 2752 | { "capture.req.method", smp_fetch_capture_req_method, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2753 | { "capture.req.uri", smp_fetch_capture_req_uri, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2754 | { "capture.req.ver", smp_fetch_capture_req_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2755 | |
| 2756 | { "capture.res.hdr", smp_fetch_capture_res_hdr, ARG1(1,SINT), NULL, SMP_T_STR, SMP_USE_HRSHP }, |
| 2757 | { "capture.res.ver", smp_fetch_capture_res_ver, 0, NULL, SMP_T_STR, SMP_USE_HRQHP }, |
| 2758 | |
| 2759 | /* cookie is valid in both directions (eg: for "stick ...") but cook* |
| 2760 | * are only here to match the ACL's name, are request-only and are used |
| 2761 | * for ACL compatibility only. |
| 2762 | */ |
| 2763 | { "cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2764 | { "cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV }, |
| 2765 | { "cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2766 | { "cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2767 | |
| 2768 | /* hdr is valid in both directions (eg: for "stick ...") but hdr_* are |
| 2769 | * only here to match the ACL's name, are request-only and are used for |
| 2770 | * ACL compatibility only. |
| 2771 | */ |
| 2772 | { "hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV|SMP_USE_HRSHV }, |
| 2773 | { "hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2774 | { "hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2775 | { "hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2776 | |
| 2777 | { "http_auth", smp_fetch_http_auth, ARG1(1,USR), NULL, SMP_T_BOOL, SMP_USE_HRQHV }, |
| 2778 | { "http_auth_group", smp_fetch_http_auth_grp, ARG1(1,USR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2779 | { "http_first_req", smp_fetch_http_first_req, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2780 | { "method", smp_fetch_meth, 0, NULL, SMP_T_METH, SMP_USE_HRQHP }, |
| 2781 | { "path", smp_fetch_path, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2782 | { "query", smp_fetch_query, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2783 | |
| 2784 | /* HTTP protocol on the request path */ |
| 2785 | { "req.proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2786 | { "req_proto_http", smp_fetch_proto_http, 0, NULL, SMP_T_BOOL, SMP_USE_HRQHP }, |
| 2787 | |
| 2788 | /* HTTP version on the request path */ |
| 2789 | { "req.ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2790 | { "req_ver", smp_fetch_rqver, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2791 | |
| 2792 | { "req.body", smp_fetch_body, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2793 | { "req.body_len", smp_fetch_body_len, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2794 | { "req.body_size", smp_fetch_body_size, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2795 | { "req.body_param", smp_fetch_body_param, ARG1(0,STR), NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2796 | |
| 2797 | { "req.hdrs", smp_fetch_hdrs, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2798 | { "req.hdrs_bin", smp_fetch_hdrs_bin, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2799 | |
| 2800 | /* HTTP version on the response path */ |
| 2801 | { "res.ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2802 | { "resp_ver", smp_fetch_stver, 0, NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2803 | |
| 2804 | /* explicit req.{cook,hdr} are used to force the fetch direction to be request-only */ |
| 2805 | { "req.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2806 | { "req.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2807 | { "req.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2808 | |
| 2809 | { "req.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV }, |
| 2810 | { "req.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2811 | { "req.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRQHV }, |
| 2812 | { "req.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2813 | { "req.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2814 | { "req.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2815 | { "req.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2816 | |
| 2817 | /* explicit req.{cook,hdr} are used to force the fetch direction to be response-only */ |
| 2818 | { "res.cook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2819 | { "res.cook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2820 | { "res.cook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2821 | |
| 2822 | { "res.fhdr", smp_fetch_fhdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2823 | { "res.fhdr_cnt", smp_fetch_fhdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2824 | { "res.hdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2825 | { "res.hdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2826 | { "res.hdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV }, |
| 2827 | { "res.hdr_names", smp_fetch_hdr_names, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2828 | { "res.hdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2829 | |
| 2830 | /* scook is valid only on the response and is used for ACL compatibility */ |
| 2831 | { "scook", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, |
| 2832 | { "scook_cnt", smp_fetch_cookie_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2833 | { "scook_val", smp_fetch_cookie_val, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2834 | { "set-cookie", smp_fetch_cookie, ARG1(0,STR), NULL, SMP_T_STR, SMP_USE_HRSHV }, /* deprecated */ |
| 2835 | |
| 2836 | /* shdr is valid only on the response and is used for ACL compatibility */ |
| 2837 | { "shdr", smp_fetch_hdr, ARG2(0,STR,SINT), val_hdr, SMP_T_STR, SMP_USE_HRSHV }, |
| 2838 | { "shdr_cnt", smp_fetch_hdr_cnt, ARG1(0,STR), NULL, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2839 | { "shdr_ip", smp_fetch_hdr_ip, ARG2(0,STR,SINT), val_hdr, SMP_T_IPV4, SMP_USE_HRSHV }, |
| 2840 | { "shdr_val", smp_fetch_hdr_val, ARG2(0,STR,SINT), val_hdr, SMP_T_SINT, SMP_USE_HRSHV }, |
| 2841 | |
| 2842 | { "status", smp_fetch_stcode, 0, NULL, SMP_T_SINT, SMP_USE_HRSHP }, |
| 2843 | { "unique-id", smp_fetch_uniqueid, 0, NULL, SMP_T_STR, SMP_SRC_L4SRV }, |
| 2844 | { "url", smp_fetch_url, 0, NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2845 | { "url32", smp_fetch_url32, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2846 | { "url32+src", smp_fetch_url32_src, 0, NULL, SMP_T_BIN, SMP_USE_HRQHV }, |
| 2847 | { "url_ip", smp_fetch_url_ip, 0, NULL, SMP_T_IPV4, SMP_USE_HRQHV }, |
| 2848 | { "url_port", smp_fetch_url_port, 0, NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2849 | { "url_param", smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2850 | { "urlp" , smp_fetch_url_param, ARG2(0,STR,STR), NULL, SMP_T_STR, SMP_USE_HRQHV }, |
| 2851 | { "urlp_val", smp_fetch_url_param_val, ARG2(0,STR,STR), NULL, SMP_T_SINT, SMP_USE_HRQHV }, |
| 2852 | { /* END */ }, |
| 2853 | }}; |
| 2854 | |
Willy Tarreau | 0108d90 | 2018-11-25 19:14:37 +0100 | [diff] [blame] | 2855 | INITCALL1(STG_REGISTER, sample_register_fetches, &sample_fetch_keywords); |
Willy Tarreau | 79e5733 | 2018-10-02 16:01:16 +0200 | [diff] [blame] | 2856 | |
| 2857 | /* |
| 2858 | * Local variables: |
| 2859 | * c-indent-level: 8 |
| 2860 | * c-basic-offset: 8 |
| 2861 | * End: |
| 2862 | */ |