87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
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// Package uncensored contains code used by Jafar to evade its own
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// censorship efforts by taking alternate routes.
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package uncensored
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import (
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"context"
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"net"
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"net/http"
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"github.com/apex/log"
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"github.com/ooni/probe-cli/v3/internal/engine/experiment/urlgetter"
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"github.com/ooni/probe-cli/v3/internal/engine/internal/runtimex"
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"github.com/ooni/probe-cli/v3/internal/engine/netx"
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)
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// Client is DNS, HTTP, and TCP client.
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type Client struct {
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dnsClient *netx.DNSClient
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httpTransport netx.HTTPRoundTripper
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dialer netx.Dialer
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}
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// NewClient creates a new Client.
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func NewClient(resolverURL string) (*Client, error) {
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configuration, err := urlgetter.Configurer{
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Config: urlgetter.Config{
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ResolverURL: resolverURL,
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},
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Logger: log.Log,
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}.NewConfiguration()
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if err != nil {
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return nil, err
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}
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return &Client{
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dnsClient: &configuration.DNSClient,
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httpTransport: netx.NewHTTPTransport(configuration.HTTPConfig),
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dialer: netx.NewDialer(configuration.HTTPConfig),
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}, nil
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}
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// Must panics if it's not possible to create a Client. Usually you should
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// use it like `uncensored.Must(uncensored.NewClient(URL))`.
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func Must(client *Client, err error) *Client {
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runtimex.PanicOnError(err, "cannot create uncensored client")
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return client
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}
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// DefaultClient is the default client for DNS, HTTP, and TCP.
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var DefaultClient = Must(NewClient(""))
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var _ netx.Resolver = DefaultClient
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// Address implements netx.Resolver.Address
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func (c *Client) Address() string {
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return c.dnsClient.Address()
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}
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// LookupHost implements netx.Resolver.LookupHost
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func (c *Client) LookupHost(ctx context.Context, domain string) ([]string, error) {
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return c.dnsClient.LookupHost(ctx, domain)
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}
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// Network implements netx.Resolver.Network
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func (c *Client) Network() string {
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return c.dnsClient.Network()
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}
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var _ netx.Dialer = DefaultClient
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// DialContext implements netx.Dialer.DialContext
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func (c *Client) DialContext(ctx context.Context, network, address string) (net.Conn, error) {
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return c.dialer.DialContext(ctx, network, address)
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}
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var _ netx.HTTPRoundTripper = DefaultClient
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// CloseIdleConnections implement netx.HTTPRoundTripper.CloseIdleConnections
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func (c *Client) CloseIdleConnections() {
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c.dnsClient.CloseIdleConnections()
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c.httpTransport.CloseIdleConnections()
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}
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// RoundTrip implement netx.HTTPRoundTripper.RoundTrip
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func (c *Client) RoundTrip(req *http.Request) (*http.Response, error) {
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return c.httpTransport.RoundTrip(req)
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}
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