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/*
* Copyright (C) Xiaozhe Wang (chaoslawful)
* Copyright (C) Yichun Zhang (agentzh)
*/
#ifndef DDEBUG
#define DDEBUG 0
#endif
#include "ddebug.h"
#include "ngx_http_lua_uri.h"
#include "ngx_http_lua_util.h"
static int ngx_http_lua_ngx_req_set_uri(lua_State *L);
void
ngx_http_lua_inject_req_uri_api(ngx_log_t *log, lua_State *L)
{
lua_pushcfunction(L, ngx_http_lua_ngx_req_set_uri);
lua_setfield(L, -2, "set_uri");
}
static int
ngx_http_lua_ngx_req_set_uri(lua_State *L)
{
ngx_http_request_t *r;
size_t len;
u_char *p;
u_char byte;
int n;
int jump = 0;
int binary = 0;
ngx_http_lua_ctx_t *ctx;
size_t buf_len;
u_char *buf;
n = lua_gettop(L);
if (n < 1 || n > 3) {
return luaL_error(L, "expecting 1, 2 or 3 arguments but seen %d", n);
}
r = ngx_http_lua_get_req(L);
if (r == NULL) {
return luaL_error(L, "no request found");
}
ngx_http_lua_check_fake_request(L, r);
p = (u_char *) luaL_checklstring(L, 1, &len);
if (len == 0) {
return luaL_error(L, "attempt to use zero-length uri");
}
if (n >= 3) {
luaL_checktype(L, 3, LUA_TBOOLEAN);
binary = lua_toboolean(L, 3);
}
if (!binary
&& ngx_http_lua_check_unsafe_uri_bytes(r, p, len, &byte) != NGX_OK)
{
buf_len = ngx_http_lua_escape_log(NULL, p, len) + 1;
buf = ngx_palloc(r->pool, buf_len);
if (buf == NULL) {
return NGX_ERROR;
}
ngx_http_lua_escape_log(buf, p, len);
buf[buf_len - 1] = '\0';
return luaL_error(L, "unsafe byte \"0x%02x\" in uri \"%s\" "
"(maybe you want to set the 'binary' argument?)",
byte, buf);
}
if (n >= 2) {
luaL_checktype(L, 2, LUA_TBOOLEAN);
jump = lua_toboolean(L, 2);
if (jump) {
ctx = ngx_http_get_module_ctx(r, ngx_http_lua_module);
if (ctx == NULL) {
return luaL_error(L, "no ctx found");
}
dd("server_rewrite: %d, rewrite: %d, access: %d, content: %d",
(int) ctx->entered_server_rewrite_phase,
(int) ctx->entered_rewrite_phase,
(int) ctx->entered_access_phase,
(int) ctx->entered_content_phase);
ngx_http_lua_check_context(L, ctx, NGX_HTTP_LUA_CONTEXT_REWRITE
| NGX_HTTP_LUA_CONTEXT_SERVER_REWRITE);
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"lua set uri jump to \"%*s\"", len, p);
ngx_http_lua_check_if_abortable(L, ctx);
}
}
r->uri.data = ngx_palloc(r->pool, len);
if (r->uri.data == NULL) {
return luaL_error(L, "no memory");
}
ngx_memcpy(r->uri.data, p, len);
r->uri.len = len;
r->internal = 1;
r->valid_unparsed_uri = 0;
ngx_http_set_exten(r);
if (jump) {
r->uri_changed = 1;
return lua_yield(L, 0);
}
r->valid_location = 0;
r->uri_changed = 0;
return 0;
}
/* vi:set ft=c ts=4 sw=4 et fdm=marker: */
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