Otherwise it will just load back the same (problematic) addresses from the
cache again the second time. This introduces a new resolver bit
(REFRESH_CACHE) that also invalidates the existing cache entry while doing the
new resolve.
MozReview-Commit-ID: 5Bc2KiAGYYA
--HG--
extra : rebase_source : ae368c88a5db27f0980b9928439d27588bc84815
... and remove Cancel() from nsHostRecord::RemoveOrRefresh since we
don't need to cancel TRR resolves due to network changes.
MozReview-Commit-ID: Akuhpzgg4N5
Provides an optional resolver mechanism for Firefox that allows running
together with or instead of the native resolver.
TRR offers resolving of host names using a dedicated DNS-over-HTTPS server
(HTTPS is required, HTTP/2 is preferable).
DNS-over-HTTPS (DOH) allows DNS resolves with enhanced privacy, secure
transfers and improved performance.
To keep the failure rate at a minimum, the TRR system manages a dynamic
persistent blacklist for host names that can't be resolved with DOH but works
with the native resolver. Blacklisted entries will not be retried over DOH for
a couple of days. "localhost" and names in the ".local" TLD will not be
resolved via DOH.
TRR is preffed OFF by default and you need to set a URI for an available DOH
server to be able to use it. Since the URI for DOH is set with a name itself,
it may have to use the native resolver for bootstrapping. (Optionally, the
user can set the IP address of the DOH server in a pref to avoid the required
initial native resolve.)
When TRR starts up, it will first verify that it works by checking a
"confirmation" domain name. This confirmation domain is a pref by default set
to "example.com". TRR will also by default await the captive-portal detection
to raise its green flag before getting activated.
All prefs for TRR are under the "network.trr" hierarchy.
The DNS-over-HTTPS spec: https://tools.ietf.org/html/draft-ietf-doh-dns-over-https-03
MozReview-Commit-ID: GuuU6vjTjlm
--HG--
extra : rebase_source : 53fcca757334090ac05fec540ef29d109d5ceed3
* Converts PLDHashTable mDB to nsRefPtrHashtable<nsGenericHashKey<nsHostKey>, nsHostRecord> mRecordDB
* Removes nsHostDBEnt and associated PLDHashTableOps
This patch makes the code a lot easier to understand, by simplifying the
ownership model. Now the hashtable holds RefPtr<nsHostRecord>, so it's
easier to follow the lifetime of each record.
MozReview-Commit-ID: IMavN8YSPSn
--HG--
extra : rebase_source : 3ff3135e2d9610577f15aaf307a62eec5ed3b47a
* nsResolveHostCallback extends nsISupports (for addref-ing and because nsDNSAsyncRequest implements nsICancelable)
* nsResolveHostCallback extends LinkedListElement<RefPtr<nsResolveHostCallback>> so the list can properly manage references
* nsDNSAsyncRequest and nsDNSSyncRequest properly implement nsISupports and use RefPtr to manage lifetimes
MozReview-Commit-ID: 5NvBcWZzfyN
--HG--
extra : rebase_source : 67adcbd20a29803e5abbb3d16324f9cac6771d28
* nsResolveHostCallback extends nsISupports (for addref-ing and because nsDNSAsyncRequest implements nsICancelable)
* nsResolveHostCallback extends LinkedListElement<RefPtr<nsResolveHostCallback>> so the list can properly manage references
* nsDNSAsyncRequest and nsDNSSyncRequest properly implement nsISupports and use RefPtr to manage lifetimes
MozReview-Commit-ID: 5NvBcWZzfyN
--HG--
extra : rebase_source : d8c5c89c35e455c5d8e6556a140a0ef119b95e86
* nsResolveHostCallback extends nsISupports (for addref-ing and because nsDNSAsyncRequest implements nsICancelable)
* nsResolveHostCallback extends LinkedListElement<RefPtr<nsResolveHostCallback>> so the list can properly manage references
* nsDNSAsyncRequest and nsDNSSyncRequest properly implement nsISupports and use RefPtr to manage lifetimes
MozReview-Commit-ID: 5NvBcWZzfyN
--HG--
extra : rebase_source : d8c5c89c35e455c5d8e6556a140a0ef119b95e86
We have several different methods called OnLookupComplete, with similar but different arguments.
This makes it difficult to reason about the code, when lots of methods are called the same.
* renames nsResolveHostCallback.OnLookupComplete to nsResolveHostCallback.OnResolveHostComplete
* renames nsHostResolver.OnLookupComplete to nsHostResolver.CompleteLookup
MozReview-Commit-ID: AeWTErs4OQM
--HG--
extra : rebase_source : 6d06b50c1fa2ba678a887b93f28e1e602e209da4
Now supports IPv6 as well if a new enough windows version is used.
Which notification function to use is detect at run-time.
Now sends CHANGED event if the online interface(s) are different in any
way since it was previously checked and considered UP. CHANGED is sent
before UP in case both are detected. It does not send any CHANGED events
during the first 2 seconds after startup.
nIOService: split up the network event receiver function from the
network status init function and have the event receiver act on the
incoming event.
DNSservice: acts on network changes (flushes the host cache and restarts
ongoing name resolves)
HttpHandler: acts on network changes
Now supports IPv6 as well if a new enough windows version is used.
Which notification function to use is detect at run-time.
Now sends CHANGED event if the online interface(s) are different in any
way since it was previously checked and considered UP. CHANGED is sent
before UP in case both are detected. It does not send any CHANGED events
during the first 2 seconds after startup.
nIOService: split up the network event receiver function from the
network status init function and have the event receiver act on the
incoming event.
DNSservice: acts on network changes (flushes the host cache and restarts
ongoing name resolves)
HttpHandler: acts on network changes
Daniel Stenberg
Valentin Gosu
Jeff Hemphill
Dorel Luca
Phil Ringnalda
Csoregi Natalia
Cosmin Sabou
Sylvestre Ledru
Tim Huang
Yen Chi Hsuan
Jonathan Watt
Nicholas Nethercote
Patrick McManus
Dragana Damjanovic
Steve Workman
Ed Morley
John Sullivan
Ryan VanderMeulen
Ehsan Akhgari
Nicholas Hurley