BUG/MEDIUM: http: fetch "base" is not compatible with set-header

The sample fetch function "base" makes use of the trash which is also
used by set-header/add-header etc... everything which builds a formated
line. So we end up with some junk in the header if base is in use. Let's
fix this as all other fetches by using a trash chunk instead.

This bug was reported by Baptiste Assmann, and also affects 1.5.
This commit is contained in:
Willy Tarreau 2014-06-24 17:27:02 +02:00
parent 92df370621
commit 3caf2afabe

View File

@ -10247,6 +10247,7 @@ smp_fetch_base(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
struct http_txn *txn = l7;
char *ptr, *end, *beg;
struct hdr_ctx ctx;
struct chunk *temp;
CHECK_HTTP_MESSAGE_FIRST();
@ -10255,9 +10256,10 @@ smp_fetch_base(struct proxy *px, struct session *l4, void *l7, unsigned int opt,
return smp_fetch_path(px, l4, l7, opt, args, smp, kw);
/* OK we have the header value in ctx.line+ctx.val for ctx.vlen bytes */
memcpy(trash.str, ctx.line + ctx.val, ctx.vlen);
temp = get_trash_chunk();
memcpy(temp->str, ctx.line + ctx.val, ctx.vlen);
smp->type = SMP_T_STR;
smp->data.str.str = trash.str;
smp->data.str.str = temp->str;
smp->data.str.len = ctx.vlen;
/* now retrieve the path */