Interface for classes that can receive information about when recent events occurred. This class primarily serves to allow HistoryGraph to scan Query

Singleton class for reporting Analytics events. In addition to improving the reporting API, this class also attaches a country code and network type

Task representing enumeration of the installed apps. This task populates |labels| and |packageNames| before completing. Enumeration typically takes

Custom pair class for labels (human-readable names) and package names (Java-style package identifiers). This class's primary purpose is to expose a c

Broadcast receiver that runs on boot, and also when the app is restarted due to an update.

Builder-pattern wrapper around android.os.Bundle, with type enforcement for parameters used by Intra.

ClientAuth interface for providing TLS certificates and signatures.

Static class for getting the system's country code.

Map IP addresses to country codes, using a fixed-width sorted database. Lookups are performed using a binary search. The database requires about 5 MB

A representation of a DNS query or response packet. This class provides read-only access to the relevant contents of a DNS query packet.

DoHListener is an event listener that receives DoH request reports. Application code can implement this interface to receive these reports.

DoHQuerySumary is the summary of a DNS transaction. It will be reported to [DoHListener].OnResponse when it is complete.

event listeners DoHQueryToken is an opaque object used to match responses to queries. The same DoHQueryToken that returned by [DoHListener].OnQuery be

DoHServer represents a DNS-over-HTTPS server.

DuplexConn represents a bidirectional stream socket.

This is a callback class that is passed to our go-tun2socks code. Go calls this class's methods when a socket has concluded, with performance metrics

Implements a Probe using the Go-based DoH client.

This is a VpnAdapter that captures all traffic and routes it through a go-tun2socks instance with custom logic for Intra.

A graph showing the DNS query activity over the past minute. The sequence of events is rendered as a QPS graph using a gradually diffusing gaussian c

IPMap maps hostnames to IPSets.

IPSet represents an unordered collection of IP addresses for a single host. One IP can be marked as confirmed to be working correctly.

Listener receives usage statistics when a UDP or TCP socket is closed, or a DNS query is completed.

Listener receives Summaries.

Wrapper for Crashlytics. This allows unit testing of classes that contain logging and allows us to cleanly disable Crashlytics in debug builds. See h

This is a NavigationView that always respects the system insets, even if it has no menu of its own.

Static class representing on-disk storage of mutable state. Collecting this all in one class helps to reduce duplication of code using SharedPreferen

A prober can perform asynchronous checks to determine whether a DOH server is working.

Protector provides the ability to bypass a VPN on Android, pre-Lollipop.

A class for tracking DNS transactions. This class counts the number of successful transactions, records the last minute of query timestamps, and opti

This class performs parallel probes to all of the specified servers and calls the listener when the fastest probe succeeds or all probes have failed.

The main screen of the app is implemented as a Recycler, allowing quasi-infinite scrolling. This scrolling is used to display the DNS query history, i

Utility class for initializing Firebase Remote Config. Remote Configuration allows us to conduct A/B tests of experimental functionality, and to enab

Resolver represents a DNS-over-HTTPS (DoH) resolver.

Utility class for dealing with Right-to-Left locales.

This dialog shows the user the fastest server we detected and allows them to accept or decline. It also gives them the option to view the server's web

A preference that opens a dialog, allowing the user to choose their preferred server from a list or by entering a URL.

User interface for a the server URL selection.

Session represents an Intra communication session. TODO: copy methods of intra.Tunnel here and do not expose intra package

UI Fragment for displaying user preferences. See https://developer.android.com/guide/topics/ui/settings#Fragment This class contains the special logi

null: There is no connection NEW: The connection has not yet completed bootstrap. WORKING: The last query (or bootstrap) succeeded. FAILING: The last

Summary is a summary of a DNS transaction, reported when it is complete.

TCPListener is notified when a socket closes.

TCPSocketSummary provides information about each TCP socket, reported when it is closed.

A Token is an opaque handle used to match responses to queries.

A representation of a complete DNS transaction, whether it succeeded or failed.

Tunnel represents an Intra session.

UDPListener is notified when a non-DNS UDP association is discarded.

UDPSocketSummary describes a non-DNS UDP association, reported when it is discarded.

Utility wrapper for trivial resolution of URI templates to URLs.

clientAuthWrapper manages certificate loading and usage during TLS handshakes. Implements crypto.Signer.

dohListenerAdapter is an adapter for the internal [doh.Listener].

DoH PacketRequestSender wrapper

DoH PacketResponseReceiver wrapper

fakeClientAuth implements the ClientAuth interface for testing.

The fake protector just records the file descriptors it was given.

This interface serves as a supertype of net.TCPConn and net.UDPConn, so that they can share the verifyMatch() function.