| /* |
| * HTTP actions |
| * |
| * Copyright 2000-2018 Willy Tarreau <w@1wt.eu> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| */ |
| |
| #include <sys/types.h> |
| |
| #include <ctype.h> |
| #include <string.h> |
| #include <time.h> |
| |
| #include <common/chunk.h> |
| #include <common/compat.h> |
| #include <common/config.h> |
| #include <common/debug.h> |
| #include <common/http.h> |
| #include <common/initcall.h> |
| #include <common/memory.h> |
| #include <common/standard.h> |
| #include <common/version.h> |
| |
| #include <types/capture.h> |
| #include <types/global.h> |
| |
| #include <proto/acl.h> |
| #include <proto/arg.h> |
| #include <proto/http_rules.h> |
| #include <proto/http_htx.h> |
| #include <proto/log.h> |
| #include <proto/proto_http.h> |
| #include <proto/stream_interface.h> |
| |
| |
| /* This function executes one of the set-{method,path,query,uri} actions. It |
| * builds a string in the trash from the specified format string. It finds |
| * the action to be performed in <http.action>, previously filled by function |
| * parse_set_req_line(). The replacement action is excuted by the function |
| * http_action_set_req_line(). It always returns ACT_RET_CONT. If an error |
| * occurs the action is canceled, but the rule processing continue. |
| */ |
| static enum act_return http_action_set_req_line(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| struct buffer *replace; |
| enum act_return ret = ACT_RET_ERR; |
| |
| replace = alloc_trash_chunk(); |
| if (!replace) |
| goto leave; |
| |
| /* If we have to create a query string, prepare a '?'. */ |
| if (rule->arg.http.action == 2) |
| replace->area[replace->data++] = '?'; |
| replace->data += build_logline(s, replace->area + replace->data, |
| replace->size - replace->data, |
| &rule->arg.http.logfmt); |
| |
| htx_req_replace_stline(rule->arg.http.action, replace->area, |
| replace->data, px, s); |
| |
| ret = ACT_RET_CONT; |
| |
| leave: |
| free_trash_chunk(replace); |
| return ret; |
| } |
| |
| /* parse an http-request action among : |
| * set-method |
| * set-path |
| * set-query |
| * set-uri |
| * |
| * All of them accept a single argument of type string representing a log-format. |
| * The resulting rule makes use of arg->act.p[0..1] to store the log-format list |
| * head, and p[2] to store the action as an int (0=method, 1=path, 2=query, 3=uri). |
| * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_set_req_line(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| int cur_arg = *orig_arg; |
| |
| rule->action = ACT_CUSTOM; |
| |
| switch (args[0][4]) { |
| case 'm' : |
| rule->arg.http.action = 0; |
| rule->action_ptr = http_action_set_req_line; |
| break; |
| case 'p' : |
| rule->arg.http.action = 1; |
| rule->action_ptr = http_action_set_req_line; |
| break; |
| case 'q' : |
| rule->arg.http.action = 2; |
| rule->action_ptr = http_action_set_req_line; |
| break; |
| case 'u' : |
| rule->arg.http.action = 3; |
| rule->action_ptr = http_action_set_req_line; |
| break; |
| default: |
| memprintf(err, "internal error: unhandled action '%s'", args[0]); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (!*args[cur_arg] || |
| (*args[cur_arg + 1] && strcmp(args[cur_arg + 1], "if") != 0 && strcmp(args[cur_arg + 1], "unless") != 0)) { |
| memprintf(err, "expects exactly 1 argument <format>"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| LIST_INIT(&rule->arg.http.logfmt); |
| px->conf.args.ctx = ARGC_HRQ; |
| if (!parse_logformat_string(args[cur_arg], px, &rule->arg.http.logfmt, LOG_OPT_HTTP, |
| (px->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, err)) { |
| return ACT_RET_PRS_ERR; |
| } |
| |
| (*orig_arg)++; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function executes a replace-uri action. It finds its arguments in |
| * <rule>.arg.act.p[]. It builds a string in the trash from the format string |
| * previously filled by function parse_replace_uri() and will execute the regex |
| * in p[1] to replace the URI. It uses the format string present in act.p[2..3]. |
| * It always returns ACT_RET_CONT. If an error occurs, the action is canceled, |
| * but the rule processing continues. |
| */ |
| static enum act_return http_action_replace_uri(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| enum act_return ret = ACT_RET_ERR; |
| struct buffer *replace, *output; |
| struct ist uri; |
| int len; |
| |
| replace = alloc_trash_chunk(); |
| output = alloc_trash_chunk(); |
| if (!replace || !output) |
| goto leave; |
| uri = htx_sl_req_uri(http_get_stline(htxbuf(&s->req.buf))); |
| if (!regex_exec_match2(rule->arg.act.p[1], uri.ptr, uri.len, MAX_MATCH, pmatch, 0)) |
| goto leave; |
| |
| replace->data = build_logline(s, replace->area, replace->size, (struct list *)&rule->arg.act.p[2]); |
| |
| /* note: uri.ptr doesn't need to be zero-terminated because it will |
| * only be used to pick pmatch references. |
| */ |
| len = exp_replace(output->area, output->size, uri.ptr, replace->area, pmatch); |
| if (len == -1) |
| goto leave; |
| |
| /* 3 is the set-uri action */ |
| htx_req_replace_stline(3, output->area, len, px, s); |
| |
| ret = ACT_RET_CONT; |
| |
| leave: |
| free_trash_chunk(output); |
| free_trash_chunk(replace); |
| return ret; |
| } |
| |
| /* parse a "replace-uri" http-request action. |
| * This action takes 2 arguments (a regex and a replacement format string). |
| * The resulting rule makes use of arg->act.p[0] to store the action (0 for now), |
| * p[1] to store the compiled regex, and arg->act.p[2..3] to store the log-format |
| * list head. It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_replace_uri(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| int cur_arg = *orig_arg; |
| char *error = NULL; |
| |
| rule->action = ACT_CUSTOM; |
| rule->arg.act.p[0] = (void *)0; // replace-uri |
| rule->action_ptr = http_action_replace_uri; |
| |
| if (!*args[cur_arg] || !*args[cur_arg+1] || |
| (*args[cur_arg+2] && strcmp(args[cur_arg+2], "if") != 0 && strcmp(args[cur_arg+2], "unless") != 0)) { |
| memprintf(err, "expects exactly 2 arguments <match-regex> and <replace-format>"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (!(rule->arg.act.p[1] = regex_comp(args[cur_arg], 1, 1, &error))) { |
| memprintf(err, "failed to parse the regex : %s", error); |
| free(error); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| LIST_INIT((struct list *)&rule->arg.act.p[2]); |
| px->conf.args.ctx = ARGC_HRQ; |
| if (!parse_logformat_string(args[cur_arg + 1], px, (struct list *)&rule->arg.act.p[2], LOG_OPT_HTTP, |
| (px->cap & PR_CAP_FE) ? SMP_VAL_FE_HRQ_HDR : SMP_VAL_BE_HRQ_HDR, err)) { |
| return ACT_RET_PRS_ERR; |
| } |
| |
| (*orig_arg) += 2; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function is just a compliant action wrapper for "set-status". */ |
| static enum act_return action_http_set_status(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| htx_res_set_status(rule->arg.status.code, rule->arg.status.reason, s); |
| return ACT_RET_CONT; |
| } |
| |
| /* parse set-status action: |
| * This action accepts a single argument of type int representing |
| * an http status code. It returns ACT_RET_PRS_OK on success, |
| * ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_http_set_status(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| char *error; |
| |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = action_http_set_status; |
| |
| /* Check if an argument is available */ |
| if (!*args[*orig_arg]) { |
| memprintf(err, "expects 1 argument: <status>; or 3 arguments: <status> reason <fmt>"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| /* convert status code as integer */ |
| rule->arg.status.code = strtol(args[*orig_arg], &error, 10); |
| if (*error != '\0' || rule->arg.status.code < 100 || rule->arg.status.code > 999) { |
| memprintf(err, "expects an integer status code between 100 and 999"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| (*orig_arg)++; |
| |
| /* set custom reason string */ |
| rule->arg.status.reason = NULL; // If null, we use the default reason for the status code. |
| if (*args[*orig_arg] && strcmp(args[*orig_arg], "reason") == 0 && |
| (*args[*orig_arg + 1] && strcmp(args[*orig_arg + 1], "if") != 0 && strcmp(args[*orig_arg + 1], "unless") != 0)) { |
| (*orig_arg)++; |
| rule->arg.status.reason = strdup(args[*orig_arg]); |
| (*orig_arg)++; |
| } |
| |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function executes the "reject" HTTP action. It clears the request and |
| * response buffer without sending any response. It can be useful as an HTTP |
| * alternative to the silent-drop action to defend against DoS attacks, and may |
| * also be used with HTTP/2 to close a connection instead of just a stream. |
| * The txn status is unchanged, indicating no response was sent. The termination |
| * flags will indicate "PR". It always returns ACT_RET_DONE. |
| */ |
| static enum act_return http_action_reject(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| si_must_kill_conn(chn_prod(&s->req)); |
| channel_abort(&s->req); |
| channel_abort(&s->res); |
| s->req.analysers = 0; |
| s->res.analysers = 0; |
| |
| _HA_ATOMIC_ADD(&s->be->be_counters.denied_req, 1); |
| _HA_ATOMIC_ADD(&sess->fe->fe_counters.denied_req, 1); |
| if (sess->listener && sess->listener->counters) |
| _HA_ATOMIC_ADD(&sess->listener->counters->denied_req, 1); |
| |
| if (!(s->flags & SF_ERR_MASK)) |
| s->flags |= SF_ERR_PRXCOND; |
| if (!(s->flags & SF_FINST_MASK)) |
| s->flags |= SF_FINST_R; |
| |
| return ACT_RET_DONE; |
| } |
| |
| /* parse the "reject" action: |
| * This action takes no argument and returns ACT_RET_PRS_OK on success, |
| * ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_http_action_reject(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = http_action_reject; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function executes the "disable-l7-retry" HTTP action. |
| * It disables L7 retries (all retry except for a connection failure). This |
| * can be useful for example to avoid retrying on POST requests. |
| * It just removes the L7 retry flag on the stream_interface, and always |
| * return ACT_RET_CONT; |
| */ |
| static enum act_return http_req_disable_l7_retry(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| struct stream_interface *si = &s->si[1]; |
| |
| /* In theory, the SI_FL_L7_RETRY flags isn't set at this point, but |
| * let's be future-proof and remove it anyway. |
| */ |
| si->flags &= ~SI_FL_L7_RETRY; |
| si->flags |= SI_FL_D_L7_RETRY; |
| return ACT_RET_CONT; |
| } |
| |
| /* parse the "disable-l7-retry" action: |
| * This action takes no argument and returns ACT_RET_PRS_OK on success, |
| * ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_http_req_disable_l7_retry(const char **args, |
| int *orig_args, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = http_req_disable_l7_retry; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function executes the "capture" action. It executes a fetch expression, |
| * turns the result into a string and puts it in a capture slot. It always |
| * returns 1. If an error occurs the action is cancelled, but the rule |
| * processing continues. |
| */ |
| static enum act_return http_action_req_capture(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| struct sample *key; |
| struct cap_hdr *h = rule->arg.cap.hdr; |
| char **cap = s->req_cap; |
| int len; |
| |
| key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.cap.expr, SMP_T_STR); |
| if (!key) |
| return ACT_RET_CONT; |
| |
| if (cap[h->index] == NULL) |
| cap[h->index] = pool_alloc(h->pool); |
| |
| if (cap[h->index] == NULL) /* no more capture memory */ |
| return ACT_RET_CONT; |
| |
| len = key->data.u.str.data; |
| if (len > h->len) |
| len = h->len; |
| |
| memcpy(cap[h->index], key->data.u.str.area, len); |
| cap[h->index][len] = 0; |
| return ACT_RET_CONT; |
| } |
| |
| /* This function executes the "capture" action and store the result in a |
| * capture slot if exists. It executes a fetch expression, turns the result |
| * into a string and puts it in a capture slot. It always returns 1. If an |
| * error occurs the action is cancelled, but the rule processing continues. |
| */ |
| static enum act_return http_action_req_capture_by_id(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| struct sample *key; |
| struct cap_hdr *h; |
| char **cap = s->req_cap; |
| struct proxy *fe = strm_fe(s); |
| int len; |
| int i; |
| |
| /* Look for the original configuration. */ |
| for (h = fe->req_cap, i = fe->nb_req_cap - 1; |
| h != NULL && i != rule->arg.capid.idx ; |
| i--, h = h->next); |
| if (!h) |
| return ACT_RET_CONT; |
| |
| key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, rule->arg.capid.expr, SMP_T_STR); |
| if (!key) |
| return ACT_RET_CONT; |
| |
| if (cap[h->index] == NULL) |
| cap[h->index] = pool_alloc(h->pool); |
| |
| if (cap[h->index] == NULL) /* no more capture memory */ |
| return ACT_RET_CONT; |
| |
| len = key->data.u.str.data; |
| if (len > h->len) |
| len = h->len; |
| |
| memcpy(cap[h->index], key->data.u.str.area, len); |
| cap[h->index][len] = 0; |
| return ACT_RET_CONT; |
| } |
| |
| /* Check an "http-request capture" action. |
| * |
| * The function returns 1 in success case, otherwise, it returns 0 and err is |
| * filled. |
| */ |
| static int check_http_req_capture(struct act_rule *rule, struct proxy *px, char **err) |
| { |
| if (rule->action_ptr != http_action_req_capture_by_id) |
| return 1; |
| |
| if (rule->arg.capid.idx >= px->nb_req_cap) { |
| memprintf(err, "unable to find capture id '%d' referenced by http-request capture rule", |
| rule->arg.capid.idx); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| /* parse an "http-request capture" action. It takes a single argument which is |
| * a sample fetch expression. It stores the expression into arg->act.p[0] and |
| * the allocated hdr_cap struct or the preallocated "id" into arg->act.p[1]. |
| * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_http_req_capture(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| struct sample_expr *expr; |
| struct cap_hdr *hdr; |
| int cur_arg; |
| int len = 0; |
| |
| for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++) |
| if (strcmp(args[cur_arg], "if") == 0 || |
| strcmp(args[cur_arg], "unless") == 0) |
| break; |
| |
| if (cur_arg < *orig_arg + 3) { |
| memprintf(err, "expects <expression> [ 'len' <length> | id <idx> ]"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| cur_arg = *orig_arg; |
| expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args); |
| if (!expr) |
| return ACT_RET_PRS_ERR; |
| |
| if (!(expr->fetch->val & SMP_VAL_FE_HRQ_HDR)) { |
| memprintf(err, |
| "fetch method '%s' extracts information from '%s', none of which is available here", |
| args[cur_arg-1], sample_src_names(expr->fetch->use)); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (!args[cur_arg] || !*args[cur_arg]) { |
| memprintf(err, "expects 'len or 'id'"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (strcmp(args[cur_arg], "len") == 0) { |
| cur_arg++; |
| |
| if (!(px->cap & PR_CAP_FE)) { |
| memprintf(err, "proxy '%s' has no frontend capability", px->id); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| px->conf.args.ctx = ARGC_CAP; |
| |
| if (!args[cur_arg]) { |
| memprintf(err, "missing length value"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| /* we copy the table name for now, it will be resolved later */ |
| len = atoi(args[cur_arg]); |
| if (len <= 0) { |
| memprintf(err, "length must be > 0"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| cur_arg++; |
| |
| hdr = calloc(1, sizeof(*hdr)); |
| hdr->next = px->req_cap; |
| hdr->name = NULL; /* not a header capture */ |
| hdr->namelen = 0; |
| hdr->len = len; |
| hdr->pool = create_pool("caphdr", hdr->len + 1, MEM_F_SHARED); |
| hdr->index = px->nb_req_cap++; |
| |
| px->req_cap = hdr; |
| px->to_log |= LW_REQHDR; |
| |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = http_action_req_capture; |
| rule->arg.cap.expr = expr; |
| rule->arg.cap.hdr = hdr; |
| } |
| |
| else if (strcmp(args[cur_arg], "id") == 0) { |
| int id; |
| char *error; |
| |
| cur_arg++; |
| |
| if (!args[cur_arg]) { |
| memprintf(err, "missing id value"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| id = strtol(args[cur_arg], &error, 10); |
| if (*error != '\0') { |
| memprintf(err, "cannot parse id '%s'", args[cur_arg]); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| cur_arg++; |
| |
| px->conf.args.ctx = ARGC_CAP; |
| |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = http_action_req_capture_by_id; |
| rule->check_ptr = check_http_req_capture; |
| rule->arg.capid.expr = expr; |
| rule->arg.capid.idx = id; |
| } |
| |
| else { |
| memprintf(err, "expects 'len' or 'id', found '%s'", args[cur_arg]); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| *orig_arg = cur_arg; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /* This function executes the "capture" action and store the result in a |
| * capture slot if exists. It executes a fetch expression, turns the result |
| * into a string and puts it in a capture slot. It always returns 1. If an |
| * error occurs the action is cancelled, but the rule processing continues. |
| */ |
| static enum act_return http_action_res_capture_by_id(struct act_rule *rule, struct proxy *px, |
| struct session *sess, struct stream *s, int flags) |
| { |
| struct sample *key; |
| struct cap_hdr *h; |
| char **cap = s->res_cap; |
| struct proxy *fe = strm_fe(s); |
| int len; |
| int i; |
| |
| /* Look for the original configuration. */ |
| for (h = fe->rsp_cap, i = fe->nb_rsp_cap - 1; |
| h != NULL && i != rule->arg.capid.idx ; |
| i--, h = h->next); |
| if (!h) |
| return ACT_RET_CONT; |
| |
| key = sample_fetch_as_type(s->be, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, rule->arg.capid.expr, SMP_T_STR); |
| if (!key) |
| return ACT_RET_CONT; |
| |
| if (cap[h->index] == NULL) |
| cap[h->index] = pool_alloc(h->pool); |
| |
| if (cap[h->index] == NULL) /* no more capture memory */ |
| return ACT_RET_CONT; |
| |
| len = key->data.u.str.data; |
| if (len > h->len) |
| len = h->len; |
| |
| memcpy(cap[h->index], key->data.u.str.area, len); |
| cap[h->index][len] = 0; |
| return ACT_RET_CONT; |
| } |
| |
| /* Check an "http-response capture" action. |
| * |
| * The function returns 1 in success case, otherwise, it returns 0 and err is |
| * filled. |
| */ |
| static int check_http_res_capture(struct act_rule *rule, struct proxy *px, char **err) |
| { |
| if (rule->action_ptr != http_action_res_capture_by_id) |
| return 1; |
| |
| if (rule->arg.capid.idx >= px->nb_rsp_cap) { |
| memprintf(err, "unable to find capture id '%d' referenced by http-response capture rule", |
| rule->arg.capid.idx); |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| /* parse an "http-response capture" action. It takes a single argument which is |
| * a sample fetch expression. It stores the expression into arg->act.p[0] and |
| * the allocated hdr_cap struct od the preallocated id into arg->act.p[1]. |
| * It returns ACT_RET_PRS_OK on success, ACT_RET_PRS_ERR on error. |
| */ |
| static enum act_parse_ret parse_http_res_capture(const char **args, int *orig_arg, struct proxy *px, |
| struct act_rule *rule, char **err) |
| { |
| struct sample_expr *expr; |
| int cur_arg; |
| int id; |
| char *error; |
| |
| for (cur_arg = *orig_arg; cur_arg < *orig_arg + 3 && *args[cur_arg]; cur_arg++) |
| if (strcmp(args[cur_arg], "if") == 0 || |
| strcmp(args[cur_arg], "unless") == 0) |
| break; |
| |
| if (cur_arg < *orig_arg + 3) { |
| memprintf(err, "expects <expression> id <idx>"); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| cur_arg = *orig_arg; |
| expr = sample_parse_expr((char **)args, &cur_arg, px->conf.args.file, px->conf.args.line, err, &px->conf.args); |
| if (!expr) |
| return ACT_RET_PRS_ERR; |
| |
| if (!(expr->fetch->val & SMP_VAL_FE_HRS_HDR)) { |
| memprintf(err, |
| "fetch method '%s' extracts information from '%s', none of which is available here", |
| args[cur_arg-1], sample_src_names(expr->fetch->use)); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (!args[cur_arg] || !*args[cur_arg]) { |
| memprintf(err, "expects 'id'"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| if (strcmp(args[cur_arg], "id") != 0) { |
| memprintf(err, "expects 'id', found '%s'", args[cur_arg]); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| cur_arg++; |
| |
| if (!args[cur_arg]) { |
| memprintf(err, "missing id value"); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| |
| id = strtol(args[cur_arg], &error, 10); |
| if (*error != '\0') { |
| memprintf(err, "cannot parse id '%s'", args[cur_arg]); |
| free(expr); |
| return ACT_RET_PRS_ERR; |
| } |
| cur_arg++; |
| |
| px->conf.args.ctx = ARGC_CAP; |
| |
| rule->action = ACT_CUSTOM; |
| rule->action_ptr = http_action_res_capture_by_id; |
| rule->check_ptr = check_http_res_capture; |
| rule->arg.capid.expr = expr; |
| rule->arg.capid.idx = id; |
| |
| *orig_arg = cur_arg; |
| return ACT_RET_PRS_OK; |
| } |
| |
| /************************************************************************/ |
| /* All supported http-request action keywords must be declared here. */ |
| /************************************************************************/ |
| |
| static struct action_kw_list http_req_actions = { |
| .kw = { |
| { "capture", parse_http_req_capture }, |
| { "reject", parse_http_action_reject }, |
| { "disable-l7-retry", parse_http_req_disable_l7_retry }, |
| { "replace-uri", parse_replace_uri }, |
| { "set-method", parse_set_req_line }, |
| { "set-path", parse_set_req_line }, |
| { "set-query", parse_set_req_line }, |
| { "set-uri", parse_set_req_line }, |
| { NULL, NULL } |
| } |
| }; |
| |
| INITCALL1(STG_REGISTER, http_req_keywords_register, &http_req_actions); |
| |
| static struct action_kw_list http_res_actions = { |
| .kw = { |
| { "capture", parse_http_res_capture }, |
| { "set-status", parse_http_set_status }, |
| { NULL, NULL } |
| } |
| }; |
| |
| INITCALL1(STG_REGISTER, http_res_keywords_register, &http_res_actions); |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |