1 commit 2351ca211d655c1be9ef6d62880899102134266d
2 Author: Christopher Faulet <cfaulet@haproxy.com>
3 Date: Fri Jul 26 16:31:34 2019 +0200
5 BUG/MINOR: hlua: Only execute functions of HTTP class if the txn is HTTP ready
7 The flag HLUA_TXN_HTTP_RDY was added in the previous commit to know when a
8 function is called for a channel with a valid HTTP message or not. Of course it
9 also depends on the calling direction. In this commit, we allow the execution of
10 functions of the HTTP class only if this flag is set.
12 Nobody seems to use them from an unsupported context (for instance, trying to
13 set an HTTP header from a tcp-request rule). But it remains a bug leading to
14 undefined behaviors or crashes.
16 This patch may be backported to all versions since the 1.6. It depends on the
17 commits "MINOR: hlua: Add a flag on the lua txn to know in which context it can
18 be used" and "MINOR: hlua: Don't set request analyzers on response channel for
21 (cherry picked from commit 301eff8e215d5dc7130e1ebacd7cf8da09a4f643)
22 Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>
24 diff --git a/src/hlua.c b/src/hlua.c
25 index d37e3c61..4d92fa44 100644
28 @@ -5346,7 +5346,7 @@ __LJMP static int hlua_http_req_get_headers(lua_State *L)
29 MAY_LJMP(check_args(L, 1, "req_get_headers"));
30 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
32 - if (htxn->dir != SMP_OPT_DIR_REQ)
33 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
34 WILL_LJMP(lua_error(L));
36 return hlua_http_get_headers(L, htxn, &htxn->s->txn->req);
37 @@ -5359,7 +5359,7 @@ __LJMP static int hlua_http_res_get_headers(lua_State *L)
38 MAY_LJMP(check_args(L, 1, "res_get_headers"));
39 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
41 - if (htxn->dir != SMP_OPT_DIR_RES)
42 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
43 WILL_LJMP(lua_error(L));
45 return hlua_http_get_headers(L, htxn, &htxn->s->txn->rsp);
46 @@ -5399,7 +5399,7 @@ __LJMP static int hlua_http_req_rep_hdr(lua_State *L)
47 MAY_LJMP(check_args(L, 4, "req_rep_hdr"));
48 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
50 - if (htxn->dir != SMP_OPT_DIR_REQ)
51 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
52 WILL_LJMP(lua_error(L));
54 return MAY_LJMP(hlua_http_rep_hdr(L, htxn, &htxn->s->txn->req, ACT_HTTP_REPLACE_HDR));
55 @@ -5412,7 +5412,7 @@ __LJMP static int hlua_http_res_rep_hdr(lua_State *L)
56 MAY_LJMP(check_args(L, 4, "res_rep_hdr"));
57 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
59 - if (htxn->dir != SMP_OPT_DIR_RES)
60 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
61 WILL_LJMP(lua_error(L));
63 return MAY_LJMP(hlua_http_rep_hdr(L, htxn, &htxn->s->txn->rsp, ACT_HTTP_REPLACE_HDR));
64 @@ -5425,7 +5425,7 @@ __LJMP static int hlua_http_req_rep_val(lua_State *L)
65 MAY_LJMP(check_args(L, 4, "req_rep_hdr"));
66 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
68 - if (htxn->dir != SMP_OPT_DIR_REQ)
69 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
70 WILL_LJMP(lua_error(L));
72 return MAY_LJMP(hlua_http_rep_hdr(L, htxn, &htxn->s->txn->req, ACT_HTTP_REPLACE_VAL));
73 @@ -5438,7 +5438,7 @@ __LJMP static int hlua_http_res_rep_val(lua_State *L)
74 MAY_LJMP(check_args(L, 4, "res_rep_val"));
75 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
77 - if (htxn->dir != SMP_OPT_DIR_RES)
78 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
79 WILL_LJMP(lua_error(L));
81 return MAY_LJMP(hlua_http_rep_hdr(L, htxn, &htxn->s->txn->rsp, ACT_HTTP_REPLACE_VAL));
82 @@ -5480,7 +5480,7 @@ __LJMP static int hlua_http_req_del_hdr(lua_State *L)
83 MAY_LJMP(check_args(L, 2, "req_del_hdr"));
84 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
86 - if (htxn->dir != SMP_OPT_DIR_REQ)
87 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
88 WILL_LJMP(lua_error(L));
90 return hlua_http_del_hdr(L, htxn, &htxn->s->txn->req);
91 @@ -5493,7 +5493,7 @@ __LJMP static int hlua_http_res_del_hdr(lua_State *L)
92 MAY_LJMP(check_args(L, 2, "res_del_hdr"));
93 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
95 - if (htxn->dir != SMP_OPT_DIR_RES)
96 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
97 WILL_LJMP(lua_error(L));
99 return hlua_http_del_hdr(L, htxn, &htxn->s->txn->rsp);
100 @@ -5547,7 +5547,7 @@ __LJMP static int hlua_http_req_add_hdr(lua_State *L)
101 MAY_LJMP(check_args(L, 3, "req_add_hdr"));
102 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
104 - if (htxn->dir != SMP_OPT_DIR_REQ)
105 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
106 WILL_LJMP(lua_error(L));
108 return hlua_http_add_hdr(L, htxn, &htxn->s->txn->req);
109 @@ -5560,7 +5560,7 @@ __LJMP static int hlua_http_res_add_hdr(lua_State *L)
110 MAY_LJMP(check_args(L, 3, "res_add_hdr"));
111 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
113 - if (htxn->dir != SMP_OPT_DIR_RES)
114 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
115 WILL_LJMP(lua_error(L));
117 return hlua_http_add_hdr(L, htxn, &htxn->s->txn->rsp);
118 @@ -5573,7 +5573,7 @@ static int hlua_http_req_set_hdr(lua_State *L)
119 MAY_LJMP(check_args(L, 3, "req_set_hdr"));
120 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
122 - if (htxn->dir != SMP_OPT_DIR_REQ)
123 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
124 WILL_LJMP(lua_error(L));
126 hlua_http_del_hdr(L, htxn, &htxn->s->txn->req);
127 @@ -5587,7 +5587,7 @@ static int hlua_http_res_set_hdr(lua_State *L)
128 MAY_LJMP(check_args(L, 3, "res_set_hdr"));
129 htxn = MAY_LJMP(hlua_checkhttp(L, 1));
131 - if (htxn->dir != SMP_OPT_DIR_RES)
132 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
133 WILL_LJMP(lua_error(L));
135 hlua_http_del_hdr(L, htxn, &htxn->s->txn->rsp);
136 @@ -5601,7 +5601,7 @@ static int hlua_http_req_set_meth(lua_State *L)
138 const char *name = MAY_LJMP(luaL_checklstring(L, 2, &name_len));
140 - if (htxn->dir != SMP_OPT_DIR_REQ)
141 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
142 WILL_LJMP(lua_error(L));
144 lua_pushboolean(L, http_replace_req_line(0, name, name_len, htxn->p, htxn->s) != -1);
145 @@ -5615,7 +5615,7 @@ static int hlua_http_req_set_path(lua_State *L)
147 const char *name = MAY_LJMP(luaL_checklstring(L, 2, &name_len));
149 - if (htxn->dir != SMP_OPT_DIR_REQ)
150 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
151 WILL_LJMP(lua_error(L));
153 lua_pushboolean(L, http_replace_req_line(1, name, name_len, htxn->p, htxn->s) != -1);
154 @@ -5629,7 +5629,7 @@ static int hlua_http_req_set_query(lua_State *L)
156 const char *name = MAY_LJMP(luaL_checklstring(L, 2, &name_len));
158 - if (htxn->dir != SMP_OPT_DIR_REQ)
159 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
160 WILL_LJMP(lua_error(L));
163 @@ -5656,7 +5656,7 @@ static int hlua_http_req_set_uri(lua_State *L)
165 const char *name = MAY_LJMP(luaL_checklstring(L, 2, &name_len));
167 - if (htxn->dir != SMP_OPT_DIR_REQ)
168 + if (htxn->dir != SMP_OPT_DIR_REQ || !(htxn->flags & HLUA_TXN_HTTP_RDY))
169 WILL_LJMP(lua_error(L));
171 lua_pushboolean(L, http_replace_req_line(3, name, name_len, htxn->p, htxn->s) != -1);
172 @@ -5670,7 +5670,7 @@ static int hlua_http_res_set_status(lua_State *L)
173 unsigned int code = MAY_LJMP(luaL_checkinteger(L, 2));
174 const char *reason = MAY_LJMP(luaL_optlstring(L, 3, NULL, NULL));
176 - if (htxn->dir != SMP_OPT_DIR_RES)
177 + if (htxn->dir != SMP_OPT_DIR_RES || !(htxn->flags & HLUA_TXN_HTTP_RDY))
178 WILL_LJMP(lua_error(L));
180 http_set_status(code, reason, htxn->s);