Fix out-of-range panics of Date

boa/src/builtins/date/mod.rs

@@ -12,7 +12,14 @@ use crate::{
 use chrono::{prelude::*, Duration, LocalResult};
 use std::fmt::Display;
 
-const NANOS_IN_MS: f64 = 1_000_000f64;
+/// The number of nanoseconds in a millisecond.
+const NANOS_PER_MS: i64 = 1_000_000;
+/// The number of milliseconds in an hour.
+const MILLIS_PER_HOUR: i64 = 3600_000;
+/// The number of milliseconds in a minute.
+const MILLIS_PER_MINUTE: i64 = 60_000;
+/// The number of milliseconds in a second.
+const MILLIS_PER_SECOND: i64 = 1000;
 
 #[inline]
 fn is_zero_or_normal_opt(value: Option<f64>) -> bool {
@@ -191,6 +198,22 @@ impl Date {
     /// The amount of arguments this function object takes.
     pub(crate) const LENGTH: usize = 7;
 
+    /// Check if the time (number of miliseconds) is in the expected range.
+    /// Returns None if the time is not in the range, otherwise returns the time itself in option.
+    ///
+    /// More information:
+    ///  - [ECMAScript reference][spec]
+    ///
+    /// [spec]: https://tc39.es/ecma262/#sec-timeclip
+    #[inline]
+    pub fn time_clip(time: f64) -> Option<f64> {
+        if time.abs() > 8.64e15 {
+            None
+        } else {
+            Some(time)
+        }
+    }
+
     /// Converts the `Date` to a local `DateTime`.
     ///
     /// If the `Date` is invalid (i.e. NAN), this function will return `None`.
@@ -224,53 +247,64 @@ impl Date {
         millisecond: Option<f64>,
     ) {
         #[inline]
-        fn num_days_in(year: i32, month: u32) -> i32 {
+        fn num_days_in(year: i32, month: u32) -> Option<u32> {
             let month = month + 1; // zero-based for calculations
-            NaiveDate::from_ymd(
-                match month {
-                    12 => year + 1,
-                    _ => year,
-                },
-                match month {
-                    12 => 1,
-                    _ => month + 1,
-                },
-                1,
+
+            Some(
+                NaiveDate::from_ymd_opt(
+                    match month {
+                        12 => year.checked_add(1)?,
+                        _ => year,
+                    },
+                    match month {
+                        12 => 1,
+                        _ => month + 1,
+                    },
+                    1,
+                )?
+                .signed_duration_since(NaiveDate::from_ymd_opt(year, month, 1)?)
+                .num_days() as u32,
             )
-            .signed_duration_since(NaiveDate::from_ymd(year, month, 1))
-            .num_days() as i32
         }
 
         #[inline]
-        fn fix_month(year: &mut i32, month: &mut i32) {
-            *year += *month / 12;
-            *month = if *month < 0 {
-                *year -= 1;
-                11 + (*month + 1) % 12
+        fn fix_month(year: i32, month: i32) -> Option<(i32, u32)> {
+            let year = year.checked_add(month / 12)?;
+
+            if month < 0 {
+                let year = year.checked_sub(1)?;
+                let month = (11 + (month + 1) % 12) as u32;
+                Some((year, month))
             } else {
-                *month % 12
+                let month = (month % 12) as u32;
+                Some((year, month))
             }
         }
 
         #[inline]
-        fn fix_day(year: &mut i32, month: &mut i32, day: &mut i32) {
-            fix_month(year, month);
+        fn fix_day(mut year: i32, mut month: i32, mut day: i32) -> Option<(i32, u32, u32)> {
             loop {
-                if *day < 0 {
-                    *month -= 1;
-                    fix_month(year, month);
-                    *day += num_days_in(*year, *month as u32);
+                if day < 0 {
+                    let (fixed_year, fixed_month) = fix_month(year, month.checked_sub(1)?)?;
+
+                    year = fixed_year;
+                    month = fixed_month as i32;
+                    day += num_days_in(fixed_year, fixed_month)? as i32;
                 } else {
-                    let num_days = num_days_in(*year, *month as u32);
-                    if *day >= num_days {
-                        *day -= num_days_in(*year, *month as u32);
-                        *month += 1;
-                        fix_month(year, month);
+                    let (fixed_year, fixed_month) = fix_month(year, month)?;
+                    let num_days = num_days_in(fixed_year, fixed_month)? as i32;
+
+                    if day >= num_days {
+                        day -= num_days;
+                        month = month.checked_add(1)?;
                     } else {
                         break;
                     }
                 }
             }
+
+            let (fixed_year, fixed_month) = fix_month(year, month)?;
+            Some((fixed_year, fixed_month, day as u32))
         }
 
         // If any of the args are infinity or NaN, return an invalid date.
@@ -286,22 +320,29 @@ impl Date {
         };
 
         self.0 = naive.and_then(|naive| {
-            let mut year = year.unwrap_or_else(|| naive.year() as f64) as i32;
-            let mut month = month.unwrap_or_else(|| naive.month0() as f64) as i32;
-            let mut day = day.unwrap_or_else(|| naive.day() as f64) as i32 - 1;
+            let year = year.unwrap_or_else(|| naive.year() as f64) as i32;
+            let month = month.unwrap_or_else(|| naive.month0() as f64) as i32;
+            let day = (day.unwrap_or_else(|| naive.day() as f64) as i32).checked_sub(1)?;
             let hour = hour.unwrap_or_else(|| naive.hour() as f64) as i64;
             let minute = minute.unwrap_or_else(|| naive.minute() as f64) as i64;
             let second = second.unwrap_or_else(|| naive.second() as f64) as i64;
-            let millisecond =
-                millisecond.unwrap_or_else(|| naive.nanosecond() as f64 / NANOS_IN_MS) as i64;
+            let millisecond = millisecond
+                .unwrap_or_else(|| naive.nanosecond() as f64 / NANOS_PER_MS as f64)
+                as i64;
+
+            let (year, month, day) = fix_day(year, month, day)?;
+
+            let duration_hour = Duration::milliseconds(hour.checked_mul(MILLIS_PER_HOUR)?);
+            let duration_minute = Duration::milliseconds(minute.checked_mul(MILLIS_PER_MINUTE)?);
+            let duration_second = Duration::milliseconds(second.checked_mul(MILLIS_PER_SECOND)?);
+            let duration_milisecond = Duration::milliseconds(millisecond);
 
-            fix_day(&mut year, &mut month, &mut day);
+            let duration = duration_hour
+                .checked_add(&duration_minute)?
+                .checked_add(&duration_second)?
+                .checked_add(&duration_milisecond)?;
 
-            let duration = Duration::hours(hour)
-                + Duration::minutes(minute)
-                + Duration::seconds(second)
-                + Duration::milliseconds(millisecond);
-            NaiveDate::from_ymd_opt(year, month as u32 + 1, day as u32 + 1)
+            NaiveDate::from_ymd_opt(year, month + 1, day + 1)
                 .and_then(|dt| dt.and_hms(0, 0, 0).checked_add_signed(duration))
                 .and_then(|dt| {
                     if utc {
@@ -310,6 +351,7 @@ impl Date {
                         ignore_ambiguity(Local.from_local_datetime(&dt)).map(|dt| dt.naive_utc())
                     }
                 })
+                .filter(|dt| Self::time_clip(dt.timestamp_millis() as f64).is_some())
         });
     }
 
@@ -415,6 +457,7 @@ impl Date {
             },
         };
 
+        let tv = tv.filter(|time| Self::time_clip(time.timestamp_millis() as f64).is_some());
         let date = Date(tv);
         this.set_data(ObjectData::Date(date));
         Ok(this.clone())
@@ -477,7 +520,8 @@ impl Date {
         let final_date = NaiveDate::from_ymd_opt(year, month + 1, day)
             .and_then(|naive_date| naive_date.and_hms_milli_opt(hour, min, sec, milli))
             .and_then(|local| ignore_ambiguity(Local.from_local_datetime(&local)))
-            .map(|local| local.naive_utc());
+            .map(|local| local.naive_utc())
+            .filter(|time| Self::time_clip(time.timestamp_millis() as f64).is_some());
 
         let date = Date(final_date);
         this.set_data(ObjectData::Date(date));
@@ -557,7 +601,7 @@ impl Date {
     /// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getMilliseconds
     pub fn get_milliseconds(&self) -> f64 {
         self.to_local()
-            .map_or(f64::NAN, |dt| dt.nanosecond() as f64 / NANOS_IN_MS)
+            .map_or(f64::NAN, |dt| dt.nanosecond() as f64 / NANOS_PER_MS as f64)
     }
 
     /// `Date.prototype.getMinutes()`
@@ -724,7 +768,7 @@ impl Date {
     /// [mdn]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getUTCMilliseconds
     pub fn get_utc_milliseconds(&self) -> f64 {
         self.to_utc()
-            .map_or(f64::NAN, |dt| dt.nanosecond() as f64 / NANOS_IN_MS)
+            .map_or(f64::NAN, |dt| dt.nanosecond() as f64 / NANOS_PER_MS as f64)
     }
 
     /// `Date.prototype.getUTCMinutes()`
@@ -1352,9 +1396,8 @@ impl Date {
 
         NaiveDate::from_ymd_opt(year, month + 1, day)
             .and_then(|f| f.and_hms_milli_opt(hour, min, sec, milli))
-            .map_or(Ok(Value::number(f64::NAN)), |f| {
-                Ok(Value::number(f.timestamp_millis() as f64))
-            })
+            .and_then(|f| Self::time_clip(f.timestamp_millis() as f64))
+            .map_or(Ok(Value::number(f64::NAN)), |time| Ok(Value::number(time)))
     }
 }