BUG/MINOR: http-rules: Replace path and query-string in "replace-path" action
authorChristopher Faulet <cfaulet@haproxy.com>
Mon, 31 Aug 2020 14:27:42 +0000 (16:27 +0200)
committerChristopher Faulet <cfaulet@haproxy.com>
Tue, 1 Sep 2020 12:39:42 +0000 (14:39 +0200)
The documentation stated the "replace-path" action replaces the path, including
the query-string if any is present. But in the code, only the path is
replaced. The query-string is preserved. So, now, instead of relying on the same
action code than "set-uri" action (1), a new action code (4) is used for
"replace-path" action. In http_req_replace_stline() function, when the action
code is 4, we call http_replace_req_path() setting the last argument (with_qs)
to 1. This way, the query-string is not skipped but included to the path to be
replaced.

This patch relies on the commit b8ce505c6 ("MINOR: http-htx: Add an option to
eval query-string when the path is replaced"). Both must be backported as far as
2.0. It should fix the issue #829.

(cherry picked from commit 4b9c0d1fc08388bf44c6ebbd88f786032dd010fc)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
(cherry picked from commit 984435789b5aee02671005ad9f098847bbb60a61)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>

src/http_act.c
src/http_ana.c

index 1105d59..372147e 100644 (file)
@@ -152,8 +152,8 @@ static enum act_return http_action_replace_uri(struct act_rule *rule, struct pro
                goto leave;
        uri = htx_sl_req_uri(http_get_stline(htxbuf(&s->req.buf)));
 
-       if (rule->arg.act.p[0] == (void *)1)
-               uri = iststop(http_get_path(uri), '?');
+       if (rule->arg.act.p[0] == (void *)4)
+               uri = http_get_path(uri);
 
        if (!regex_exec_match2(rule->arg.act.p[1], uri.ptr, uri.len, MAX_MATCH, pmatch, 0))
                goto leave;
@@ -191,7 +191,7 @@ static enum act_parse_ret parse_replace_uri(const char **args, int *orig_arg, st
 
        rule->action = ACT_CUSTOM;
        if (strcmp(args[cur_arg-1], "replace-path") == 0)
-               rule->arg.act.p[0] = (void *)1; // replace-path
+               rule->arg.act.p[0] = (void *)4; // replace-path
        else
                rule->arg.act.p[0] = (void *)3; // replace-uri
 
index 63f9135..b63e7fe 100644 (file)
@@ -2795,6 +2795,11 @@ int http_req_replace_stline(int action, const char *replace, int len,
                                return -1;
                        break;
 
+               case 4: // path + query
+                       if (!http_replace_req_path(htx, ist2(replace, len), 1))
+                               return -1;
+                       break;
+
                default:
                        return -1;
        }