This commit add topic negotiation to the protocol.
On receiving a message from a client with version >= 1, we will generate
a shared key using Diffie-Hellman. We will record also which
installationID has sent us a message.
This key will be passed back to the above layer, which will then use to
start listening to a whisper topic (the `chat` namespace has no
knowledge of whisper).
When sending a message to a set of InstallationIDs, we check whether we
have agreed on a topic with all of them, and if so, we will send on this
separate topic, otherwise we fallback on discovery.
This change is backward compatible, as long as there is no downgrade of
the app on the other side.
A few changes:
* Factored out the DB in a separate namespace as now it is
being used by multiple services (TopicService and EncryptionService).
* Factored out multidevice management in a separate namespace
* Moved all the test to test the whole protoocl rather than just the encryption service
* Moved all the filter management in status-go
In RequestMessagesSync subscriber is listening to a feed where all whisper
events are posted. After we received event with a request hash - subscriber will
stop actively consuming messages from a feed, as a subscription channel will
get overflow and whole feed will get blocked.
Some events are posted to a feed before request is sent, so blocked feed results
in blocked sending.
Now we will unsubscribe after relevant event was received, and terminate subscriber
explicitly by timeout.
As part of a performance profiling of mailserver we noticed that most of
the resources on a query are spend decoding the whisper envelope.
This PR changes the way we store envelopes encoding the Topic into the
database key, so we can check that and we are able to publish the
envelope rawValue if it matches.
The change is backward compatible as only newly added envelopes will
have the new key, while old ones will have to be unmarshaled.
* Replace request ID when same request is restarted
* Remove unnecessary changes
* Execute all writes atomically only if request was processed succesfully
* Fix linter
* Fix shadowed errors
* Fix spelling
* Do not append same reference to a byte slice
* Split shhext.tracker into envelopes and mail monitors
* Send envelopes on every new attempt to deliver a message
* Re-send user payloads if previous envelopes weren't acknowledged
* Remove debug api across the codebase
Currently PFS messages are decrypted and therefore modified before being
passed to the client. This make IDs computation difficult, as we pass
the whole object to the client and expect the object be passed back once
confirmed.
This changes the behavior allowing confirmation by ID, which is passed
to the client instead of the raw object.
This is a breaking change, but status-react is already forward
compatible.
This PR does a few things:
1) Add a call GetContactCode to check whether we have a bundle for a
given user.
2) Add a DH flag to the API (non-breaking change), for those messages
that we want to target all devices (contact-requests for example).
3) Fixes a few small issues with installations, namely if for example a
messages is sent without a bundle (currently not done by any client),
we still infer installation info, so that we can communicate securely
and making it truly optional.
Change to support sending multiple bundles, as needed for group chats,
limit number of devices to 3 as already done in the UI and refresh
bundle daily.
This change implements connection manager that monitors 3 types of events:
1. update of the selected mail servers
2. disconnect from a mail server
3. errors for requesting mail history
When selected mail servers provided we will try to connect with as many as possible, and later disconnect the surplus. For example if we want to connect with one mail server and 3 were selected, we try to connect with all (3), and later disconnect with 2. It will to establish connection with live mail server faster.
If mail server disconnects we will choose any other mail server from the list of selected. Unless we have only one mail server. In such case we don't have any other choice and we will leave things as is.
If request for history was expired we will disconnect such peer and try to find another one. We will follow same rules as described above.
We will have two components that will rely on this logic:
1. requesting history
If target peer is provided we will use that peer, otherwise we will request history from any selected mail server that is connected at the time of request.
2. confirmation from selected mail server
Confirmation from any selected mail server will bee used to send a feedback that envelope was sent.
I will add several extensions, but probably in separate PRs:
1. prioritize connection with mail server that was used before reboot
2. disconnect from mail servers if history request wasn't expired but failed.
3. wait some time in RequestsMessage RPC to establish connection with any mail server
Currently this feature is hidden, as certain changes will be necessary in status-react.
partially implements: https://github.com/status-im/status-go/issues/1285
This commit updates geth to 1.8.17 and adds a possibility to enable metrics during compilation time.
The cascade of issues forced us to upgrade geth to 1.8.17 in order to allow enabling metrics during compilation time. 1.8.17 introduced `NodeID` refactoring and `enode` package which affected our peers pool and integration with Discovery V5.
* allow multiple topics in mailserver requests
* simplify topicsToBloom function
* create test topics simply from the string without hash
* add deprecated comment to MessagesRequest.Topic
* mailserver sends envelopes in descending order
* add limit value in mailserver request payload
* mailserver sends messages up to the limit specified in the request
* update Archive method to return key and error
* processRequest returns the next page cursor
* add cursor to mailserver request
* add limit and cursor to request payload
* fix request limit encoding
* wait for request completed event in TrackerSuite/TestRequestCompleted
* add cursor to mailserver response
* fix cursor position in payload
* add e2e test for mail server pagination
* validate mail server response size
* remove old limitReached var
* fix lint warnings
* add whisper patch
* fix tests after rebase
* check all return values to avoid lint warnings
* check that all messages have been retrieved after 2 paginated requests
* fix lint warnings
* rename geth patch
* merge mailserver patches into one
* add last envelope hash to mailserver response and EventEnvelopeAvailable event
* update whisper patch
* add docs to MailServerResponse
* update whisper patch
* fix tests and lint warnings
* send mailserver response data on EventMailServerRequestCompleted signal
* update tracker tests
* optimise pagination test waiting for mailserver to archive only before requesting
* rollback mailserver interface changes
* refactoring and docs changes
* fix payload size check to determine if a limit is specified
* add more docs to the processRequest method
* add constants for request payload field lengths
* add const noLimits to specify that limit=0 means no limits
* refactor TestRequestMessageFromMailboxAsync to use s.requestHistoricMessages helper
* send p2pRequestResponseCode from mailserver
* send p2p message response to after sending all historic messages
* mailserver sends `whisper.NewSentMessage` as response
* add mailserver Client and p2pRequestAckCode watchers
* send event with envelopeFeed when p2pRequestAckCode is received
* test request completed event in tracker
* rename mailserver response events and code to RequestCompleteCode
* wait for mailserver response in e2e test
* use SendHistoricMessageResponse method name for mailserver response
* fix lint warnings
* add mailserver request expiration
* send mailserver response without envelope
* add `ttl` to Request struct in shhext_requestMessages
* test that tracker calls handler.MailServerRequestExpired
* add geth patch
* rename TTL to Timeout
* split tracker.handleEvent in multiple methods
This change adds adds an ability to use different source of time for whisper:
when envelope is created it is used to set expiry
to track when envelope needs to be expired
This time is then used to check validity of the envelope when it is received. Currently If we receive an envelope that is sent from future - peer will get disconnected. If envelope that was received has an expiry less then now it will be simply dropped, if expiry is less than now + 10*2 seconds peer will get dropped.
So, it is clear that whisper depends on time. And any time we get a skew with peers that is > 20s reliability will be grealy reduced.
In this change another source of time for whisper will be used. This time source will use ntp servers from pool.ntp.org to compute offset. When whisper queries time - this offset will be added/substracted from current time.
Query is executed every 2 mins, queries 5 different servers, cut offs min and max and the computes mean value. pool.ntp.org is resolved to different servers and according to documentation you will rarely hit the same.
Closes: #687
* Add RequestMessage to sshext
* E2E tests now use shhext_requestMessages
* Typo in comment
* Enhanced maintainability
* Drop former mailservice
* Code reorg after review
* Fix missed changes after update to 1.8.5
* Rebase on 1.8.5
* Remove outdated patches and apply all others
* Use shh_post that returns hash
* Use bloom filter for request to mailserver
* Remove tests for sending messages without subbing first
* Fix deadlock in ethdb
* Expect null if receipt is not yet created
* Subscribe to messages before sending them in whisper test
Andrea Maria Piana
Adam Babik
Dmitry Shulyak
Ivan Daniluk
Andrea Franz
Adam Babik
Igor Mandrigin
Frank Mueller