1berry/ruby
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Tighten Time.new(string) parsing

Browse Source 
Disallow:

* Only year-month
* Only year-month-day
* Preceding whitespace
* Trailing whitespace

Fixes [Bug #19293]
This commit is contained in:
Jeremy Evans 2023-06-22 14:31:57 -07:00
parent d814722fb8
commit 5d4fff8456
Notes: git 2023-07-13 23:49:59 +00:00 
Merged: https://github.com/ruby/ruby/pull/7974
2 changed files with 25 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
test/ruby/test_time.rb
View File

@ -75,6 +75,7 @@ class TestTime < Test::Unit::TestCase
Time.new("2020-12-25 00 +09:00")
}
assert_equal(Time.new(2021), Time.new("2021"))
assert_equal(Time.new(2021, 12, 25, in: "+09:00"), Time.new("2021-12-25+09:00"))
assert_equal(0.123456r, Time.new("2021-12-25 00:00:00.123456 +09:00").subsec)
@ -138,6 +139,18 @@ class TestTime < Test::Unit::TestCase
assert_raise_with_message(ArgumentError, /mon out of range/) {
Time.new("2020-17-25 00:56:17 +0900")
}
assert_raise_with_message(ArgumentError, /no time information/) {
Time.new("2020-12")
}
assert_raise_with_message(ArgumentError, /no time information/) {
Time.new("2020-12-02")
}
assert_raise_with_message(ArgumentError, /can't parse/) {
Time.new(" 2020-12-02 00:00:00")
}
assert_raise_with_message(ArgumentError, /can't parse/) {
Time.new("2020-12-02 00:00:00 ")
}
end
def test_time_add()

13
time.c
View File

@ -2545,7 +2545,9 @@ time_init_parse(rb_execution_context_t *ec, VALUE klass, VALUE str, VALUE zone,
size_t ndigits;
size_t prec = NIL_P(precision) ? SIZE_MAX : NUM2SIZET(precision);
while ((ptr < end) && ISSPACE(*ptr)) ptr++;
if ((ptr < end) && (ISSPACE(*ptr) || ISSPACE(*(end-1)))) {
rb_raise(rb_eArgError, "can't parse: %+"PRIsVALUE, str);
}
year = parse_int(ptr, end, &ptr, &ndigits, true);
if (NIL_P(year)) {
rb_raise(rb_eArgError, "can't parse: %+"PRIsVALUE, str);
@ -2553,6 +2555,9 @@ time_init_parse(rb_execution_context_t *ec, VALUE klass, VALUE str, VALUE zone,
else if (ndigits < 4) {
rb_raise(rb_eArgError, "year must be 4 or more digits: %.*s", (int)ndigits, ptr - ndigits);
}
else if (ptr == end) {
goto only_year;
}
do {
#define peekable_p(n) ((ptrdiff_t)(n) < (end - ptr))
#define peek_n(c, n) (peekable_p(n) && ((unsigned char)ptr[n] == (c)))
@ -2613,6 +2618,9 @@ time_init_parse(rb_execution_context_t *ec, VALUE klass, VALUE str, VALUE zone,
if (zend > zstr) {
zone = rb_str_subseq(str, zstr - begin, zend - zstr);
}
else if (hour == -1) {
rb_raise(rb_eArgError, "no time information");
}
if (!NIL_P(subsec)) {
/* subseconds is the last using ndigits */
static const size_t TIME_SCALE_NUMDIGITS =
@ -2629,6 +2637,9 @@ time_init_parse(rb_execution_context_t *ec, VALUE klass, VALUE str, VALUE zone,
}
}
only_year:
;
struct vtm vtm = {
.wday = VTM_WDAY_INITVAL,
.yday = 0,