Revert "Replace time with std::time in components/net (#31079)" (#31120)

This reverts commit 580062228b.

Cargo.lock

@@ -2802,7 +2802,6 @@ dependencies = [
 name = "hyper_serde"
 version = "0.13.2"
 dependencies = [
- "chrono",
  "cookie 0.12.0",
  "headers",
  "http",

components/devtools/actors/network_event.rs

@@ -9,7 +9,7 @@
 use std::net::TcpStream;
 use std::time::{SystemTime, UNIX_EPOCH};
 
-use chrono::{DateTime, Local};
+use chrono::{Local, LocalResult, TimeZone};
 use devtools_traits::{HttpRequest as DevtoolsHttpRequest, HttpResponse as DevtoolsHttpResponse};
 use headers::{ContentType, Cookie, HeaderMapExt};
 use http::{header, HeaderMap, Method, StatusCode};
@@ -371,13 +371,23 @@ impl NetworkEventActor {
     pub fn event_actor(&self) -> EventActor {
         // TODO: Send the correct values for startedDateTime, isXHR, private
 
-        let date_time: DateTime<Local> = self.request.startedDateTime.clone().into();
+        let started_datetime_rfc3339 = match Local.timestamp_millis_opt(
+            self.request
+                .startedDateTime
+                .duration_since(UNIX_EPOCH)
+                .unwrap_or_default()
+                .as_millis() as i64,
+        ) {
+            LocalResult::None => "".to_owned(),
+            LocalResult::Single(dateTime) => format!("{}", dateTime.to_rfc3339()),
+            LocalResult::Ambiguous(dateTime, _) => format!("{}", dateTime.to_rfc3339()),
+        };
 
         EventActor {
             actor: self.name(),
             url: self.request.url.clone(),
             method: format!("{}", self.request.method),
-            startedDateTime: date_time.to_rfc3339(),
+            startedDateTime: started_datetime_rfc3339,
             timeStamp: self.request.timeStamp,
             isXHR: self.is_xhr,
             private: false,

components/hyper_serde/Cargo.toml

@@ -16,7 +16,6 @@ doctest = false
 test = false
 
 [dependencies]
-chrono = "0.4"
 cookie = { workspace = true }
 headers = { workspace = true }
 http = { workspace = true }
@@ -24,7 +23,7 @@ hyper = { workspace = true }
 mime = { workspace = true }
 serde = { workspace = true }
 serde_bytes = { workspace = true }
+time = { workspace = true }
 
 [dev-dependencies]
 serde_test = "1.0"
-time = { workspace = true }

components/hyper_serde/lib.rs

@@ -20,7 +20,7 @@
 //! * `hyper::Method`
 //! * `hyper::Uri`
 //! * `mime::Mime`
-//! * `std::time::SystemTime`
+//! * `time::Tm`
 //!
 //! # How do I use a data type with a `HeaderMap` member with Serde?
 //!
@@ -66,10 +66,8 @@
 
 use std::ops::{Deref, DerefMut};
 use std::str::FromStr;
-use std::time::SystemTime;
 use std::{cmp, fmt, str};
 
-use chrono::{DateTime, SecondsFormat, Utc};
 use cookie::Cookie;
 use headers::ContentType;
 use http::HeaderMap;
@@ -80,6 +78,7 @@ use serde::de::{self, Error, MapAccess, SeqAccess, Visitor};
 use serde::ser::{SerializeMap, SerializeSeq};
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use serde_bytes::{ByteBuf, Bytes};
+use time::{strptime, Tm};
 
 /// Deserialises a `T` value with a given deserializer.
 ///
@@ -605,15 +604,15 @@ impl<'de> Visitor<'de> for StatusVisitor {
     }
 }
 
-impl<'de> Deserialize<'de> for De<SystemTime> {
+impl<'de> Deserialize<'de> for De<Tm> {
     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
     where
         D: Deserializer<'de>,
     {
-        struct SystemTimeVisitor;
+        struct TmVisitor;
 
-        impl<'de> Visitor<'de> for SystemTimeVisitor {
+        impl<'de> Visitor<'de> for TmVisitor {
-            type Value = De<SystemTime>;
+            type Value = De<Tm>;
 
             fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
                 write!(formatter, "a date and time according to RFC 3339")
@@ -623,23 +622,22 @@ impl<'de> Deserialize<'de> for De<SystemTime> {
             where
                 E: de::Error,
             {
-                DateTime::parse_from_rfc3339(v)
+                strptime(v, "%Y-%m-%dT%H:%M:%SZ")
-                    .map(|t| De::new(SystemTime::from(t)))
+                    .map(De::new)
                     .map_err(|e| E::custom(e.to_string()))
             }
         }
 
-        deserializer.deserialize_string(SystemTimeVisitor)
+        deserializer.deserialize_string(TmVisitor)
     }
 }
 
-impl<'a> Serialize for Ser<'a, SystemTime> {
+impl<'a> Serialize for Ser<'a, Tm> {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,
     {
-        let date_time: DateTime<Utc> = self.v.clone().into();
+        serializer.serialize_str(&self.v.rfc3339().to_string())
-        serializer.serialize_str(&date_time.to_rfc3339_opts(SecondsFormat::Secs, true))
     }
 }
 

components/hyper_serde/tests/supported.rs

@@ -8,8 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-use std::time::SystemTime;
-
 use cookie::Cookie;
 use headers::ContentType;
 use http::header::HeaderMap;
@@ -17,6 +15,7 @@ use hyper::{Method, StatusCode, Uri};
 use hyper_serde::{De, Ser, Serde};
 use mime::Mime;
 use serde::{Deserialize, Serialize};
+use time::Tm;
 
 fn is_supported<T>()
 where
@@ -34,6 +33,6 @@ fn supported() {
     is_supported::<Method>();
     is_supported::<Mime>();
     is_supported::<StatusCode>();
-    is_supported::<SystemTime>();
+    is_supported::<Tm>();
     is_supported::<Uri>();
 }

components/hyper_serde/tests/tokens.rs

@@ -15,6 +15,7 @@ use http::StatusCode;
 use hyper::{Method, Uri};
 use hyper_serde::{De, Ser};
 use serde_test::{assert_de_tokens, assert_ser_tokens, Token};
+use time::Duration;
 
 #[test]
 fn test_content_type() {
@@ -31,7 +32,7 @@ fn test_cookie() {
     // string with a bunch of indices in it which apparently is different from the exact same
     // cookie but parsed as a bunch of strings.
     let cookie: Cookie = Cookie::build("Hello", "World!")
-        .max_age(time::Duration::seconds(42))
+        .max_age(Duration::seconds(42))
         .domain("servo.org")
         .path("/")
         .secure(true)
@@ -111,18 +112,14 @@ fn test_raw_status() {
 }
 
 #[test]
-fn test_system_time_serialization() {
+fn test_tm() {
-    use std::time::SystemTime;
+    use time::strptime;
 
-    use chrono::{NaiveDateTime, TimeZone, Utc};
+    let time = strptime("2017-02-22T12:03:31Z", "%Y-%m-%dT%H:%M:%SZ").unwrap();
+    let tokens = &[Token::Str("2017-02-22T12:03:31Z")];
 
-    let time = SystemTime::from(Utc.from_utc_datetime(
-        &NaiveDateTime::parse_from_str("2023-01-15T12:53:31Z", "%Y-%m-%dT%H:%M:%SZ").unwrap(),
-    ));
-    let tokens = &[Token::Str("2023-01-15T12:53:31Z")];
-
-    assert_de_tokens(&De::new(time), tokens);
     assert_ser_tokens(&Ser::new(&time), tokens);
+    assert_de_tokens(&De::new(time), tokens);
 }
 
 #[test]

components/net/cookie.rs

@@ -7,13 +7,13 @@
 
 use std::borrow::ToOwned;
 use std::net::{Ipv4Addr, Ipv6Addr};
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use hyper_serde::Serde;
 use net_traits::pub_domains::is_pub_domain;
 use net_traits::CookieSource;
 use serde::{Deserialize, Serialize};
 use servo_url::ServoUrl;
+use time::{at, now, Duration, Tm};
 
 /// A stored cookie that wraps the definition in cookie-rs. This is used to implement
 /// various behaviours defined in the spec that rely on an associated request URL,
@@ -31,13 +31,13 @@ pub struct Cookie {
         deserialize_with = "hyper_serde::deserialize",
         serialize_with = "hyper_serde::serialize"
     )]
-    pub creation_time: SystemTime,
+    pub creation_time: Tm,
     #[serde(
         deserialize_with = "hyper_serde::deserialize",
         serialize_with = "hyper_serde::serialize"
     )]
-    pub last_access: SystemTime,
+    pub last_access: Tm,
-    pub expiry_time: Option<Serde<SystemTime>>,
+    pub expiry_time: Option<Serde<Tm>>,
 }
 
 impl Cookie {
@@ -62,16 +62,11 @@ impl Cookie {
         let (persistent, expiry_time) = match (cookie.max_age(), cookie.expires()) {
             (Some(max_age), _) => (
                 true,
-                Some(SystemTime::now() + Duration::from_secs(max_age.num_seconds() as u64)),
+                Some(at(
-            ),
+                    now().to_timespec() + Duration::seconds(max_age.num_seconds())
-            (_, Some(expires)) => (
+                )),
-                true,
-                Some(
-                    UNIX_EPOCH +
-                        Duration::from_secs(expires.to_timespec().sec as u64) +
-                        Duration::from_nanos(expires.to_timespec().nsec as u64),
-                ),
             ),
+            (_, Some(expires)) => (true, Some(expires)),
             _ => (false, None),
         };
 
@@ -140,18 +135,18 @@ impl Cookie {
             cookie,
             host_only,
             persistent,
-            creation_time: SystemTime::now(),
+            creation_time: now(),
-            last_access: SystemTime::now(),
+            last_access: now(),
             expiry_time: expiry_time.map(Serde),
         })
     }
 
     pub fn touch(&mut self) {
-        self.last_access = SystemTime::now();
+        self.last_access = now();
     }
 
     pub fn set_expiry_time_negative(&mut self) {
-        self.expiry_time = Some(Serde(SystemTime::now() - Duration::from_secs(1)));
+        self.expiry_time = Some(Serde(now() - Duration::seconds(1)));
     }
 
     // http://tools.ietf.org/html/rfc6265#section-5.1.4

components/net/cookie_storage.rs

@@ -8,13 +8,13 @@
 use std::cmp::Ordering;
 use std::collections::hash_map::Entry;
 use std::collections::HashMap;
-use std::time::{SystemTime, UNIX_EPOCH};
 
 use log::{debug, info};
 use net_traits::pub_domains::reg_suffix;
 use net_traits::CookieSource;
 use serde::{Deserialize, Serialize};
 use servo_url::ServoUrl;
+use time::{self, Tm};
 
 use crate::cookie::Cookie;
 
@@ -139,17 +139,8 @@ impl CookieStorage {
         let b_path_len = b.cookie.path().as_ref().map_or(0, |p| p.len());
         match a_path_len.cmp(&b_path_len) {
             Ordering::Equal => {
-                let a_creation_time = a
+                let a_creation_time = a.creation_time.to_timespec();
-                    .creation_time
+                let b_creation_time = b.creation_time.to_timespec();
-                    .duration_since(UNIX_EPOCH)
-                    .unwrap_or_default()
-                    .as_nanos();
-                let b_creation_time = b
-                    .creation_time
-                    .duration_since(UNIX_EPOCH)
-                    .unwrap_or_default()
-                    .as_nanos();
-
                 a_creation_time.cmp(&b_creation_time)
             },
             // Ensure that longer paths are sorted earlier than shorter paths
@@ -238,14 +229,14 @@ fn reg_host<'a>(url: &'a str) -> String {
 
 fn is_cookie_expired(cookie: &Cookie) -> bool {
     match cookie.expiry_time {
-        Some(ref t) => t.0 <= SystemTime::now(),
+        Some(ref t) => t.to_timespec() <= time::get_time(),
         None => false,
     }
 }
 
 fn evict_one_cookie(is_secure_cookie: bool, cookies: &mut Vec<Cookie>) -> bool {
     // Remove non-secure cookie with oldest access time
-    let oldest_accessed = get_oldest_accessed(false, cookies);
+    let oldest_accessed: Option<(usize, Tm)> = get_oldest_accessed(false, cookies);
 
     if let Some((index, _)) = oldest_accessed {
         cookies.remove(index);
@@ -254,7 +245,7 @@ fn evict_one_cookie(is_secure_cookie: bool, cookies: &mut Vec<Cookie>) -> bool {
         if !is_secure_cookie {
             return false;
         }
-        let oldest_accessed: Option<(usize, SystemTime)> = get_oldest_accessed(true, cookies);
+        let oldest_accessed: Option<(usize, Tm)> = get_oldest_accessed(true, cookies);
         if let Some((index, _)) = oldest_accessed {
             cookies.remove(index);
         }
@@ -262,11 +253,8 @@ fn evict_one_cookie(is_secure_cookie: bool, cookies: &mut Vec<Cookie>) -> bool {
     return true;
 }
 
-fn get_oldest_accessed(
+fn get_oldest_accessed(is_secure_cookie: bool, cookies: &mut Vec<Cookie>) -> Option<(usize, Tm)> {
-    is_secure_cookie: bool,
+    let mut oldest_accessed: Option<(usize, Tm)> = None;
-    cookies: &mut Vec<Cookie>,
-) -> Option<(usize, SystemTime)> {
-    let mut oldest_accessed: Option<(usize, SystemTime)> = None;
     for (i, c) in cookies.iter().enumerate() {
         if (c.cookie.secure().unwrap_or(false) == is_secure_cookie) &&
             oldest_accessed

components/net/fetch/cors_cache.rs

@@ -9,12 +9,11 @@
 //! This library will eventually become the core of the Fetch crate
 //! with CORSRequest being expanded into FetchRequest (etc)
 
-use std::time::{Duration, SystemTime};
-
 use http::header::HeaderName;
 use http::Method;
 use net_traits::request::{CredentialsMode, Origin, Request};
 use servo_url::ServoUrl;
+use time::{self, Timespec};
 
 /// Union type for CORS cache entries
 ///
@@ -46,17 +45,17 @@ impl HeaderOrMethod {
 pub struct CorsCacheEntry {
     pub origin: Origin,
     pub url: ServoUrl,
-    pub max_age: Duration,
+    pub max_age: u32,
     pub credentials: bool,
     pub header_or_method: HeaderOrMethod,
-    created: SystemTime,
+    created: Timespec,
 }
 
 impl CorsCacheEntry {
     fn new(
         origin: Origin,
         url: ServoUrl,
-        max_age: Duration,
+        max_age: u32,
         credentials: bool,
         header_or_method: HeaderOrMethod,
     ) -> CorsCacheEntry {
@@ -66,7 +65,7 @@ impl CorsCacheEntry {
             max_age: max_age,
             credentials: credentials,
             header_or_method: header_or_method,
-            created: SystemTime::now(),
+            created: time::now().to_timespec(),
         }
     }
 }
@@ -112,11 +111,10 @@ impl CorsCache {
     /// Remove old entries
     pub fn cleanup(&mut self) {
         let CorsCache(buf) = self.clone();
-        let now = SystemTime::now();
+        let now = time::now().to_timespec();
-
         let new_buf: Vec<CorsCacheEntry> = buf
             .into_iter()
-            .filter(|e| now < e.created + e.max_age)
+            .filter(|e| now.sec < e.created.sec + e.max_age as i64)
             .collect();
         *self = CorsCache(new_buf);
     }
@@ -135,7 +133,7 @@ impl CorsCache {
         &mut self,
         request: &Request,
         header_name: &HeaderName,
-        new_max_age: Duration,
+        new_max_age: u32,
     ) -> bool {
         match self
             .find_entry_by_header(&request, header_name)
@@ -169,7 +167,7 @@ impl CorsCache {
         &mut self,
         request: &Request,
         method: Method,
-        new_max_age: Duration,
+        new_max_age: u32,
     ) -> bool {
         match self
             .find_entry_by_method(&request, method.clone())

components/net/hsts.rs

@@ -4,7 +4,6 @@
 
 use std::collections::HashMap;
 use std::net::{Ipv4Addr, Ipv6Addr};
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use embedder_traits::resources::{self, Resource};
 use headers::{HeaderMapExt, StrictTransportSecurity};
@@ -20,7 +19,7 @@ use servo_url::{Host, ServoUrl};
 pub struct HstsEntry {
     pub host: String,
     pub include_subdomains: bool,
-    pub max_age: Option<Duration>,
+    pub max_age: Option<u64>,
     pub timestamp: Option<u64>,
 }
 
@@ -28,7 +27,7 @@ impl HstsEntry {
     pub fn new(
         host: String,
         subdomains: IncludeSubdomains,
-        max_age: Option<Duration>,
+        max_age: Option<u64>,
     ) -> Option<HstsEntry> {
         if host.parse::<Ipv4Addr>().is_ok() || host.parse::<Ipv6Addr>().is_ok() {
             None
@@ -37,12 +36,7 @@ impl HstsEntry {
                 host: host,
                 include_subdomains: (subdomains == IncludeSubdomains::Included),
                 max_age: max_age,
-                timestamp: Some(
+                timestamp: Some(time::get_time().sec as u64),
-                    SystemTime::now()
-                        .duration_since(UNIX_EPOCH)
-                        .unwrap_or_default()
-                        .as_secs(),
-                ),
             })
         }
     }
@@ -50,11 +44,7 @@ impl HstsEntry {
     pub fn is_expired(&self) -> bool {
         match (self.max_age, self.timestamp) {
             (Some(max_age), Some(timestamp)) => {
-                SystemTime::now()
+                (time::get_time().sec as u64) - timestamp >= max_age
-                    .duration_since(UNIX_EPOCH)
-                    .unwrap_or_default() -
-                    Duration::from_secs(timestamp) >=
-                    max_age
             },
 
             _ => false,
@@ -206,9 +196,11 @@ impl HstsList {
                     IncludeSubdomains::NotIncluded
                 };
 
-                if let Some(entry) =
+                if let Some(entry) = HstsEntry::new(
-                    HstsEntry::new(host.to_owned(), include_subdomains, Some(header.max_age()))
+                    host.to_owned(),
-                {
+                    include_subdomains,
+                    Some(header.max_age().as_secs()),
+                ) {
                     info!("adding host {} to the strict transport security list", host);
                     info!("- max-age {}", header.max_age().as_secs());
                     if header.include_subdomains() {

components/net/http_cache.rs

@@ -11,7 +11,7 @@ use std::collections::HashMap;
 use std::ops::Bound;
 use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::Mutex;
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
+use std::time::SystemTime;
 
 use headers::{
     CacheControl, ContentRange, Expires, HeaderMapExt, LastModified, Pragma, Range, Vary,
@@ -30,6 +30,7 @@ use net_traits::{FetchMetadata, Metadata, ResourceFetchTiming};
 use servo_arc::Arc;
 use servo_config::pref;
 use servo_url::ServoUrl;
+use time::{Duration, Timespec, Tm};
 use tokio::sync::mpsc::{unbounded_channel as unbounded, UnboundedSender as TokioSender};
 
 use crate::fetch::methods::{Data, DoneChannel};
@@ -74,7 +75,7 @@ struct MeasurableCachedResource {
     raw_status: Option<(u16, Vec<u8>)>,
     url_list: Vec<ServoUrl>,
     expires: Duration,
-    last_validated: SystemTime,
+    last_validated: Tm,
 }
 
 impl MallocSizeOf for CachedResource {
@@ -180,11 +181,11 @@ fn calculate_response_age(response: &Response) -> Duration {
     if let Some(secs) = response.headers.get(header::AGE) {
         if let Ok(seconds_string) = secs.to_str() {
             if let Ok(secs) = seconds_string.parse::<i64>() {
-                return Duration::from_secs(secs as u64);
+                return Duration::seconds(secs);
             }
         }
     }
-    Duration::ZERO
+    Duration::seconds(0i64)
 }
 
 /// Determine the expiry date from relevant headers,
@@ -195,10 +196,14 @@ fn get_response_expiry(response: &Response) -> Duration {
     if let Some(directives) = response.headers.typed_get::<CacheControl>() {
         if directives.no_cache() {
             // Requires validation on first use.
-            return Duration::ZERO;
+            return Duration::seconds(0i64);
         } else {
-            if let Some(max_age) = directives.max_age().or(directives.s_max_age()) {
+            if let Some(secs) = directives.max_age().or(directives.s_max_age()) {
-                return max_age.checked_sub(age).unwrap_or(Duration::ZERO);
+                let max_age = Duration::from_std(secs).unwrap();
+                if max_age < age {
+                    return Duration::seconds(0i64);
+                }
+                return max_age - age;
             }
         }
     }
@@ -206,15 +211,18 @@ fn get_response_expiry(response: &Response) -> Duration {
         Some(t) => {
             // store the period of time from now until expiry
             let t: SystemTime = t.into();
-            let desired = t.duration_since(UNIX_EPOCH).unwrap_or_default();
+            let t = t.duration_since(SystemTime::UNIX_EPOCH).unwrap();
-            let current = SystemTime::now()
+            let desired = Timespec::new(t.as_secs() as i64, 0);
-                .duration_since(UNIX_EPOCH)
+            let current = time::now().to_timespec();
-                .unwrap_or_default();
 
-            return desired.checked_sub(current).unwrap_or(Duration::ZERO);
+            if desired > current {
+                return desired - current;
+            } else {
+                return Duration::seconds(0i64);
+            }
         },
         // Malformed Expires header, shouldn't be used to construct a valid response.
-        None if response.headers.contains_key(header::EXPIRES) => return Duration::ZERO,
+        None if response.headers.contains_key(header::EXPIRES) => return Duration::seconds(0i64),
         _ => {},
     }
     // Calculating Heuristic Freshness
@@ -223,18 +231,19 @@ fn get_response_expiry(response: &Response) -> Duration {
         // <https://tools.ietf.org/html/rfc7234#section-5.5.4>
         // Since presently we do not generate a Warning header field with a 113 warn-code,
         // 24 hours minus response age is the max for heuristic calculation.
-        let max_heuristic = Duration::from_secs(24 * 3600) - age;
+        let max_heuristic = Duration::hours(24) - age;
         let heuristic_freshness = if let Some(last_modified) =
             // If the response has a Last-Modified header field,
             // caches are encouraged to use a heuristic expiration value
             // that is no more than some fraction of the interval since that time.
             response.headers.typed_get::<LastModified>()
         {
-            let current = SystemTime::now()
+            let current = time::now().to_timespec();
-                .duration_since(UNIX_EPOCH)
-                .unwrap_or_default();
             let last_modified: SystemTime = last_modified.into();
-            let last_modified = last_modified.duration_since(UNIX_EPOCH).unwrap();
+            let last_modified = last_modified
+                .duration_since(SystemTime::UNIX_EPOCH)
+                .unwrap();
+            let last_modified = Timespec::new(last_modified.as_secs() as i64, 0);
             // A typical setting of this fraction might be 10%.
             let raw_heuristic_calc = (current - last_modified) / 10;
             let result = if raw_heuristic_calc < max_heuristic {
@@ -259,7 +268,7 @@ fn get_response_expiry(response: &Response) -> Duration {
         }
     }
     // Requires validation upon first use as default.
-    Duration::ZERO
+    Duration::seconds(0i64)
 }
 
 /// Request Cache-Control Directives
@@ -271,19 +280,24 @@ fn get_expiry_adjustment_from_request_headers(request: &Request, expires: Durati
     };
 
     if let Some(max_age) = directive.max_stale() {
-        return expires + max_age;
+        return expires + Duration::from_std(max_age).unwrap();
     }
     if let Some(max_age) = directive.max_age() {
+        let max_age = Duration::from_std(max_age).unwrap();
         if expires > max_age {
-            return Duration::ZERO;
+            return Duration::min_value();
         }
         return expires - max_age;
     }
     if let Some(min_fresh) = directive.min_fresh() {
-        return expires.checked_sub(min_fresh).unwrap_or(Duration::ZERO);
+        let min_fresh = Duration::from_std(min_fresh).unwrap();
+        if expires < min_fresh {
+            return Duration::min_value();
+        }
+        return expires - min_fresh;
     }
     if directive.no_cache() || directive.no_store() {
-        return Duration::ZERO;
+        return Duration::min_value();
     }
 
     expires
@@ -327,15 +341,8 @@ fn create_cached_response(
     response.aborted = cached_resource.aborted.clone();
     let expires = cached_resource.data.expires;
     let adjusted_expires = get_expiry_adjustment_from_request_headers(request, expires);
-    let now = SystemTime::now()
+    let now = Duration::seconds(time::now().to_timespec().sec);
-        .duration_since(UNIX_EPOCH)
+    let last_validated = Duration::seconds(cached_resource.data.last_validated.to_timespec().sec);
-        .unwrap_or_default();
-    let last_validated = cached_resource
-        .data
-        .last_validated
-        .duration_since(UNIX_EPOCH)
-        .unwrap_or_default();
-
     let time_since_validated = now - last_validated;
     // TODO: take must-revalidate into account <https://tools.ietf.org/html/rfc7234#section-5.2.2.1>
     // TODO: if this cache is to be considered shared, take proxy-revalidate into account
@@ -806,7 +813,7 @@ impl HttpCache {
         let entry_key = CacheKey::from_servo_url(url);
         if let Some(cached_resources) = self.entries.get_mut(&entry_key) {
             for cached_resource in cached_resources.iter_mut() {
-                cached_resource.data.expires = Duration::ZERO;
+                cached_resource.data.expires = Duration::seconds(0i64);
             }
         }
     }
@@ -890,7 +897,7 @@ impl HttpCache {
                 raw_status: response.raw_status.clone(),
                 url_list: response.url_list.clone(),
                 expires: expiry,
-                last_validated: SystemTime::now(),
+                last_validated: time::now(),
             }),
         };
         let entry = self.entries.entry(entry_key).or_insert_with(|| vec![]);

components/net/http_loader.rs

@@ -122,10 +122,7 @@ impl HttpState {
 }
 
 fn precise_time_ms() -> u64 {
-    SystemTime::now()
+    time::precise_time_ns() / (1000 * 1000)
-        .duration_since(UNIX_EPOCH)
-        .unwrap_or_default()
-        .as_millis() as u64
 }
 
 // Step 3 of https://fetch.spec.whatwg.org/#concept-fetch.
@@ -2111,6 +2108,7 @@ async fn cors_preflight_fetch(
             .typed_get::<AccessControlMaxAge>()
             .map(|acma| acma.into())
             .unwrap_or(Duration::from_secs(5));
+        let max_age = max_age.as_secs() as u32;
         // Substep 10
         // TODO: Need to define what an imposed limit on max-age is
 

components/net/tests/hsts.rs

@@ -3,7 +3,6 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 use std::collections::HashMap;
-use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
 use net::hsts::{HstsEntry, HstsList};
 use net_traits::IncludeSubdomains;
@@ -13,7 +12,7 @@ fn test_hsts_entry_is_not_expired_when_it_has_no_timestamp() {
     let entry = HstsEntry {
         host: "mozilla.org".to_owned(),
         include_subdomains: false,
-        max_age: Some(Duration::from_secs(20)),
+        max_age: Some(20),
         timestamp: None,
     };
 
@@ -26,12 +25,7 @@ fn test_hsts_entry_is_not_expired_when_it_has_no_max_age() {
         host: "mozilla.org".to_owned(),
         include_subdomains: false,
         max_age: None,
-        timestamp: Some(
+        timestamp: Some(time::get_time().sec as u64),
-            SystemTime::now()
-                .duration_since(UNIX_EPOCH)
-                .unwrap_or_default()
-                .as_secs(),
-        ),
     };
 
     assert!(!entry.is_expired());
@@ -42,14 +36,8 @@ fn test_hsts_entry_is_expired_when_it_has_reached_its_max_age() {
     let entry = HstsEntry {
         host: "mozilla.org".to_owned(),
         include_subdomains: false,
-        max_age: Some(Duration::from_secs(10)),
+        max_age: Some(10),
-        timestamp: Some(
+        timestamp: Some(time::get_time().sec as u64 - 20u64),
-            SystemTime::now()
-                .duration_since(UNIX_EPOCH)
-                .unwrap_or_default()
-                .as_secs() -
-                20u64,
-        ),
     };
 
     assert!(entry.is_expired());
@@ -118,7 +106,7 @@ fn test_push_entry_with_0_max_age_evicts_entry_from_list() {
         vec![HstsEntry::new(
             "mozilla.org".to_owned(),
             IncludeSubdomains::NotIncluded,
-            Some(Duration::from_secs(500000u64)),
+            Some(500000u64),
         )
         .unwrap()],
     );
@@ -130,7 +118,7 @@ fn test_push_entry_with_0_max_age_evicts_entry_from_list() {
         HstsEntry::new(
             "mozilla.org".to_owned(),
             IncludeSubdomains::NotIncluded,
-            Some(Duration::ZERO),
+            Some(0),
         )
         .unwrap(),
     );
@@ -379,14 +367,8 @@ fn test_hsts_list_with_expired_entry_is_not_is_host_secure() {
         vec![HstsEntry {
             host: "mozilla.org".to_owned(),
             include_subdomains: false,
-            max_age: Some(Duration::from_secs(20)),
+            max_age: Some(20),
-            timestamp: Some(
+            timestamp: Some(time::get_time().sec as u64 - 100u64),
-                SystemTime::now()
-                    .duration_since(UNIX_EPOCH)
-                    .unwrap_or_default()
-                    .as_secs() -
-                    100u64,
-            ),
         }],
     );
     let hsts_list = HstsList {