Struct Config 

pub struct Config {

    pub remote_mcp_url: String,
    pub remote_sse_url: Option<String>,
    pub mcp_protocol_version: String,
    pub auth_scheme: AuthScheme,
    pub oidc_discovery_url: Option<String>,
    pub kc_auth_url: Option<String>,
    pub kc_token_url: Option<String>,
    pub kc_par_url: Option<String>,
    pub oidc_issuer: Option<String>,
    pub oidc_offline_access: bool,
    pub oidc_client_id: String,
    pub oidc_redirect_url: String,
    pub user_id: String,
    pub auth_timeout_secs: u64,
    pub template_dir: Option<PathBuf>,
    pub log_level: String,
    pub log_dir: Option<PathBuf>,
    pub allow_insecure_http: bool,
}

mcp-airlock’s configuration.

Fields

remote_mcp_url: String

Remote MCP endpoint (the Streamable HTTP URL of the server)

remote_sse_url: Option<String>

Standalone SSE endpoint of legacy (2025-11-25 and earlier) servers [default: –remote-mcp-url]

mcp_protocol_version: String

Fallback MCP-Protocol-Version, used only when a message doesn’t determine its version

auth_scheme: AuthScheme

Authorization header scheme; the DPoP proof header is sent either way

oidc_discovery_url: Option<String>

Authorization server metadata URL (skips discovery from the MCP server)

kc_auth_url: Option<String>

Authorization endpoint override

kc_token_url: Option<String>

Token endpoint override

kc_par_url: Option<String>

Pushed Authorization Request (PAR) endpoint override

oidc_issuer: Option<String>

Expected issuer of the authorization server the client ID is registered with

oidc_offline_access: bool

Request the offline_access scope (long-lived refresh tokens) when the provider offers it

oidc_client_id: String

OIDC Client ID (a pre-registered ID, or an https URL of a Client ID Metadata Document)

oidc_redirect_url: String

Loopback redirect URL for the login callback (must be registered with the provider)

user_id: String

Name under which credentials are stored in the OS keychain

auth_timeout_secs: u64

Seconds to wait for the browser login to complete before giving up

template_dir: Option<PathBuf>

Directory containing success.html and failure.html for the auth callback

log_level: String

Log level (error, warn, info, debug, trace)

log_dir: Option<PathBuf>

Directory for logs [default: per-user state directory, e.g. ~/.local/state/mcp-airlock/logs]

allow_insecure_http: bool

Allow plain-HTTP MCP and authorization server URLs on non-loopback hosts (insecure)

Implementations

impl Config

pub fn parse() -> Self

Parses the process arguments and environment, exiting on errors.

pub fn resolved_log_dir(&self) -> PathBuf

The log directory: --log-dir, or a private per-user directory.

Trait Implementations

impl Args for Config

fn group_id() -> Option<Id>

Report the [ArgGroup::id][crate::ArgGroup::id] for this set of arguments

fn augment_args<'b>(__clap_app: Command) -> Command

Append to [Command] so it can instantiate Self via [FromArgMatches::from_arg_matches_mut]

fn augment_args_for_update<'b>(__clap_app: Command) -> Command

Append to [Command] so it can instantiate self via [FromArgMatches::update_from_arg_matches_mut]

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl CommandFactory for Config

fn command<'b>() -> Command

Build a [Command] that can instantiate Self.

fn command_for_update<'b>() -> Command

Build a [Command] that can update self.

impl Debug for Config

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

Formats the value using the given formatter.

impl FromArgMatches for Config

fn from_arg_matches(__clap_arg_matches: &ArgMatches) -> Result<Self, Error>

Instantiate Self from [ArgMatches], parsing the arguments as needed.

fn from_arg_matches_mut( __clap_arg_matches: &mut ArgMatches, ) -> Result<Self, Error>

Instantiate Self from [ArgMatches], parsing the arguments as needed.

fn update_from_arg_matches( &mut self, __clap_arg_matches: &ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

fn update_from_arg_matches_mut( &mut self, __clap_arg_matches: &mut ArgMatches, ) -> Result<(), Error>

Assign values from ArgMatches to self.

impl Parser for Config

fn parse() -> Self

Parse from std::env::args_os(), [exit][Error::exit] on error.

fn try_parse() -> Result<Self, Error>

Parse from std::env::args_os(), return Err on error.

fn parse_from<I, T>(itr: I) -> Self

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, [exit][Error::exit] on error.

fn try_parse_from<I, T>(itr: I) -> Result<Self, Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Parse from iterator, return Err on error.

fn update_from<I, T>(&mut self, itr: I)

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, [exit][Error::exit] on error.

fn try_update_from<I, T>(&mut self, itr: I) -> Result<(), Error>

where I: IntoIterator<Item = T>, T: Into<OsString> + Clone,

Update from iterator, return Err on error.