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[mod_magnet] magnet_push_quoted_string shared code 

(internal) magnet_push_quoted_string() shared code
personal/stbuehler/tests-path
Glenn Strauss 2022-02-21 01:20:05 -05:00
parent b03fcc7025
commit 94c952bd1c
1 changed files with 39 additions and 11 deletions
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50
src/mod_magnet.c
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@ -1239,6 +1239,43 @@ static int magnet_fspath_simplify(lua_State *L) {
return 1;
}
__attribute_pure__
static const char * magnet_scan_quoted_string (const char *s) {
/* scan to end of of quoted-string (with s starting at '"')
* loose parse; non-validating
* - permit missing '"' at end of string (caller should check)
* - stop at stray '\\' at end of string missing closing '"'
* - not rejecting non-WS CTL chars
*/
/*force_assert(*s == '"');*/
do { ++s; } while (*s && *s != '"' && (*s != '\\' || (s[1] ? ++s : 0)));
/*do { ++s; } while (*s && *s != '"' && (*s != '\\' || (*++s || (--s, 0))));*/
return s;
}
static const char * magnet_push_quoted_string_range (lua_State *L, const char *b, const char *s) {
/* quoted-string is unmodified (except for quoted-string end consistency)
* including surrounding double-quotes and with quoted-pair unmodified */
if (__builtin_expect( (*s == '"'), 1))
lua_pushlstring(L, b, (size_t)(++s-b));
else { /*(else invalid quoted-string, but handle anyway)*/
/* append closing '"' for consistency */
lua_pushlstring(L, b, (size_t)(s-b));
if (*s != '\\')
lua_pushlstring(L, "\"", 1);
else { /* unescaped backslash at end of string; escape and close '"' */
lua_pushlstring(L, "\\\\\"", 3);
++s; /*(now *s == '\0')*/
}
lua_concat(L, 2);
}
return s;
}
static const char * magnet_push_quoted_string(lua_State *L, const char *s) {
return magnet_push_quoted_string_range(L, s, magnet_scan_quoted_string(s));
}
static const char * magnet_cookie_param_push_token(lua_State *L, const char *s) {
const char *b = s;
while (*s!='=' /*(note: not strictly rejecting all 'separators')*/
@ -1248,17 +1285,8 @@ static const char * magnet_cookie_param_push_token(lua_State *L, const char *s)
return s;
}
static const char * magnet_cookie_param_push_quoted_string(lua_State *L, const char *s) {
const char *b = s;
/*force_assert(*s == '"');*/
do { ++s; } while (*s && *s != '"' && (*s != '\\' || *++s));
if (*s == '"') /*(else invalid quoted-string, but handle anyway)*/
++s;
lua_pushlstring(L, b, (size_t)(s-b));
return s;
}
static int magnet_cookie_tokens(lua_State *L) {
/*(special-case cookies (';' separator); dup cookie-names overwritten)*/
lua_createtable(L, 0, 0);
if (lua_isnoneornil(L, 1))
return 1;
@ -1279,7 +1307,7 @@ static int magnet_cookie_tokens(lua_State *L) {
else if (*s != '"')
s = magnet_cookie_param_push_token(L, s);
else
s = magnet_cookie_param_push_quoted_string(L, s);
s = magnet_push_quoted_string(L, s);
}
else {
lua_pushlstring(L, "", 0); /*(lua_pushnil() would delete key)*/