arti_client::config

Struct BridgesConfig

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#[non_exhaustive]
pub struct BridgesConfig { /* private fields */ }
Expand description

Configuration for anti-censorship features: bridges and pluggable transports.

A “bridge” is a relay that is not listed in the regular Tor network directory; clients use them to reach the network when a censor is blocking their connection to all the regular Tor relays.

A “pluggable transport” is a tool that transforms and conceals a user’s connection to a bridge; clients use them to reach the network when a censor is blocking all traffic that “looks like Tor”.

A BridgesConfig configuration has the following pieces:

§Example

Here’s an example of building a bridge configuration, and using it in a TorClientConfig.

The bridges here are fictitious; you’ll need to use real bridges if you want a working configuration.

#[cfg(feature = "pt-client")]
use arti_client::config::{TorClientConfig, BridgeConfigBuilder, CfgPath};
// Requires that the pt-client feature is enabled.
use arti_client::config::pt::TransportConfigBuilder;

let mut builder = TorClientConfig::builder();

// Add a single bridge to the list of bridges, from a bridge line.
// This bridge line is made up for demonstration, and won't work.
const BRIDGE1_LINE : &str = "Bridge obfs4 192.0.2.55:38114 316E643333645F6D79216558614D3931657A5F5F cert=YXJlIGZyZXF1ZW50bHkgZnVsbCBvZiBsaXR0bGUgbWVzc2FnZXMgeW91IGNhbiBmaW5kLg iat-mode=0";
let bridge_1: BridgeConfigBuilder = BRIDGE1_LINE.parse()?;
// This is where we pass `BRIDGE1_LINE` into the BridgeConfigBuilder.
builder.bridges().bridges().push(bridge_1);

// Add a second bridge, built by hand.  This way is harder.
// This bridge is made up for demonstration, and won't work.
let mut bridge2_builder = BridgeConfigBuilder::default();
bridge2_builder
    .transport("obfs4")
    .push_setting("iat-mode", "1")
    .push_setting(
        "cert",
        "YnV0IHNvbWV0aW1lcyB0aGV5IGFyZSByYW5kb20u8x9aQG/0cIIcx0ItBcTqiSXotQne+Q"
    );
bridge2_builder.set_addrs(vec!["198.51.100.25:443".parse()?]);
bridge2_builder.set_ids(vec!["7DD62766BF2052432051D7B7E08A22F7E34A4543".parse()?]);
// Now insert the second bridge into our config builder.
builder.bridges().bridges().push(bridge2_builder);

// Now configure an obfs4 transport. (Requires the "pt-client" feature)
let mut transport = TransportConfigBuilder::default();
transport
    .protocols(vec!["obfs4".parse()?])
    // Specify either the name or the absolute path of pluggable transport client binary, this
    // may differ from system to system.
    .path(CfgPath::new("/usr/bin/obfs4proxy".into()))
    .run_on_startup(true);
builder.bridges().transports().push(transport);

let config = builder.build()?;
// Now you can pass `config` to TorClient::create!

You can also find an example based on snowflake in arti-client example folder.

Implementations§

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impl BridgesConfig

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pub fn builder() -> BridgesConfigBuilder

Returns a fresh, default, builder

Trait Implementations§

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impl AsRef<BridgesConfig> for TorClientConfig

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fn as_ref(&self) -> &BridgesConfig

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for BridgesConfig

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fn clone(&self) -> BridgesConfig

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for BridgesConfig

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for BridgesConfig

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl PartialEq for BridgesConfig

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fn eq(&self, other: &BridgesConfig) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for BridgesConfig

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impl StructuralPartialEq for BridgesConfig

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