Change npm's lockfile registry URLs back to https:// after a wrapped run

Co-authored-by: Ian Graham Martinez <[email protected]>

core/src/aliasing/managers/bun.rs

@@ -11,4 +11,5 @@ pub static BUN: Manager = Manager {
         ("npm_config_registry", "http://registry.npmjs.org/"),
     ],
     args: &[],
+    lockfile: None,
 };

core/src/aliasing/managers/cargo.rs

@@ -17,4 +17,5 @@ pub static CARGO: Manager = Manager {
             "source.firewall.registry=\"sparse+http://index.crates.io/\"",
         ],
     }],
+    lockfile: None,
 };

core/src/aliasing/managers/gem.rs

@@ -8,4 +8,5 @@ pub static GEM: Manager = Manager {
         when: &["install", "update", "fetch"],
         flags: &["--clear-sources", "--source", "http://rubygems.org/"],
     }],
+    lockfile: None,
 };

core/src/aliasing/managers/go.rs

@@ -11,4 +11,5 @@ pub static GO: Manager = Manager {
         ("GOFLAGS", "-mod=mod"),
     ],
     args: &[],
+    lockfile: None,
 };

core/src/aliasing/managers/mod.rs

@@ -36,6 +36,14 @@ pub struct Manager {
     pub command: &'static str,
     pub env: &'static [(&'static str, &'static str)],
     pub args: &'static [Args],
+    /// Where the manager records registry URLs, which then carry our http:// override.
+    pub lockfile: Option<Lockfile>,
+}
+
+/// What to do after a run about http:// registry URLs left in the lockfile at this path.
+pub enum Lockfile {
+    Restore(&'static str),
+    Warn(&'static str),
 }
 
 pub static MANAGERS: &[&Manager] =

core/src/aliasing/managers/npm.rs

@@ -1,4 +1,4 @@
-use super::{Manager, PROXY};
+use super::{Lockfile, Manager, PROXY};
 
 pub static NPM: Manager = Manager {
     command: "npm",
@@ -8,4 +8,5 @@ pub static NPM: Manager = Manager {
         ("npm_config_registry", "http://registry.npmjs.org/"),
     ],
     args: &[],
+    lockfile: Some(Lockfile::Restore("package-lock.json")),
 };

core/src/aliasing/managers/pdm.rs

@@ -13,4 +13,5 @@ pub static PDM: Manager = Manager {
         ("PDM_PYPI_VERIFY_SSL", "false"),
     ],
     args: &[],
+    lockfile: None,
 };

core/src/aliasing/managers/pip.rs

@@ -12,5 +12,5 @@ pub static PIP: Manager = recipe("pip");
 pub static PIP3: Manager = recipe("pip3");
 
 const fn recipe(name: &'static str) -> Manager {
-    Manager { command: name, env: PIP_ENV, args: &[] }
+    Manager { command: name, env: PIP_ENV, args: &[], lockfile: None }
 }

core/src/aliasing/managers/pipenv.rs

@@ -13,4 +13,5 @@ pub static PIPENV: Manager = Manager {
         ("PIP_TRUSTED_HOST", "pypi.org files.pythonhosted.org"),
     ],
     args: &[],
+    lockfile: None,
 };

core/src/aliasing/managers/pnpm.rs

@@ -9,4 +9,5 @@ pub static PNPM: Manager = Manager {
         ("pnpm_config_registry", "http://registry.npmjs.org/"),
     ],
     args: &[],
+    lockfile: None,
 };

core/src/aliasing/managers/uv.rs

@@ -1,7 +1,8 @@
-use super::{Manager, PROXY, PYPI_SIMPLE};
+use super::{Lockfile, Manager, PROXY, PYPI_SIMPLE};
 
 pub static UV: Manager = Manager {
     command: "uv",
     env: &[("HTTP_PROXY", PROXY), ("http_proxy", PROXY), ("UV_DEFAULT_INDEX", PYPI_SIMPLE)],
     args: &[],
+    lockfile: Some(Lockfile::Warn("uv.lock")),
 };

core/src/aliasing/mod.rs

@@ -6,9 +6,11 @@ mod windows;
 pub use forward::spawn;
 pub use managers::*;
 
+use crate::policies::registries::BUILT_IN;
 use std::io::{Error, ErrorKind};
 use std::path::{Path, PathBuf};
 use std::process::Command;
+use tracing::{info, warn};
 
 pub struct Invocation {
     pub program: String,
@@ -50,10 +52,42 @@ pub fn run(port: u16, invocation: &Invocation, dir: Option<&Path>) -> std::io::R
     let status = command.status();
     #[cfg(windows)]
     let status = status.map_err(|error| windows::explain(error, &program));
-    Ok(status?.code().unwrap_or(1))
+    let code = status?.code().unwrap_or(1);
+    let manager = MANAGERS.iter().find(|manager| manager.command == invocation.program);
+    match manager.and_then(|manager| manager.lockfile.as_ref()) {
+        Some(Lockfile::Restore(lockfile)) => restore_https(lockfile, dir),
+        Some(Lockfile::Warn(lockfile)) => warn_if_plaintext(lockfile, dir),
+        None => {}
+    }
+    Ok(code)
 }
 
 // Command::new only finds .exe on Windows; npm, pnpm and gem are .cmd shims found via PATHEXT.
 fn resolve(program: &str) -> std::io::Result<PathBuf> {
     which::which(program).map_err(|e| Error::new(ErrorKind::NotFound, e))
 }
+
+fn warn_if_plaintext(lockfile: &str, dir: Option<&Path>) {
+    let path = dir.unwrap_or(Path::new(".")).join(lockfile);
+    let Ok(text) = std::fs::read_to_string(path) else { return };
+    if BUILT_IN.iter().any(|registry| text.contains(&format!("http://{}/", registry.host()))) {
+        warn!("{lockfile} has http:// registry URLs; change them to https:// before committing");
+    }
+}
+
+fn restore_https(lockfile: &str, dir: Option<&Path>) {
+    let path = dir.unwrap_or(Path::new(".")).join(lockfile);
+    let Ok(text) = std::fs::read_to_string(&path) else { return };
+    let mut fixed = text.clone();
+    for registry in BUILT_IN {
+        let host = registry.host();
+        fixed = fixed.replace(&format!("http://{host}/"), &format!("https://{host}/"));
+    }
+    if fixed == text {
+        return;
+    }
+    match std::fs::write(&path, fixed) {
+        Ok(()) => info!("changed {lockfile}'s registry URLs back to https://"),
+        Err(e) => warn!("could not change {lockfile}'s registry URLs back to https://: {e}"),
+    }
+}

core/src/os/windows/pipe.rs

@@ -1,24 +1,32 @@
-//! How the tray asks the service what it blocked, as the macOS app messages its extension.
+//! How the tray asks the service what it blocked, and allows a new package once, as the macOS
+//! app messages its extension.
 
-use super::security_descriptor;
+use super::{config_file, security_descriptor};
-use crate::blocks;
+use crate::{blocks, Firewall};
 use rama::error::BoxError;
+use std::os::windows::io::AsRawHandle;
+use std::sync::Arc;
 use std::time::Duration;
 use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader};
 use tokio::net::windows::named_pipe::{NamedPipeServer, ServerOptions};
+use windows::core::{Owned, PWSTR};
+use windows::Win32::Foundation::HANDLE;
 use windows::Win32::Security::SECURITY_ATTRIBUTES;
+use windows::Win32::System::Pipes::GetNamedPipeClientProcessId;
+use windows::Win32::System::Threading::*;
 
 pub(super) const PIPE: &str = r"\\.\pipe\StrixFirewall";
 /// Signed-in users can connect, as the tray runs as them.
 const PIPE_ACL: &str = "D:P(A;;GA;;;SY)(A;;GA;;;BA)(A;;GRGW;;;IU)";
 
-pub(super) async fn serve() -> Result<(), BoxError> {
+pub(super) async fn serve(firewall: Arc<Firewall>) -> Result<(), BoxError> {
     let mut server = create(true)?;
     loop {
         server.connect().await?;
         let client = std::mem::replace(&mut server, create(false)?);
+        let firewall = Arc::clone(&firewall);
         tokio::spawn(async move {
-            if let Err(error) = answer(client).await {
+            if let Err(error) = answer(client, &firewall).await {
                 tracing::debug!(%error, "could not answer the tray");
             }
         });
@@ -40,19 +48,39 @@ fn create(first: bool) -> Result<NamedPipeServer, BoxError> {
 }
 
 /// A line each way.
-async fn answer(client: NamedPipeServer) -> Result<(), BoxError> {
+async fn answer(client: NamedPipeServer, firewall: &Firewall) -> Result<(), BoxError> {
     let mut client = BufReader::new(client);
     let mut request = String::new();
     (&mut client)
         .take(64 * 1024)
         .read_line(&mut request)
         .await?;
-    let reply = match request.trim_end() {
+    let request = request.trim_end();
-        "blocks" => serde_json::to_string(&blocks::take())?,
+    // Only the app can message the macOS extension; here any program could connect.
-        other => format!("error: unknown request {other}"),
+    let reply = if !client_is_tray(client.get_ref())? {
+        "error: only the tray can ask".to_owned()
+    } else if request.starts_with("allow ") {
+        // Trusting writes the config for every user, so it is left to an administrator.
+        "error: trusting a package takes an administrator".to_owned()
+    } else {
+        blocks::answer(firewall, &config_file(), request)
     };
     client.write_all(format!("{reply}\n").as_bytes()).await?;
     // Closing before the tray hangs up could discard the reply.
     let _ = tokio::time::timeout(Duration::from_secs(5), client.read(&mut [0])).await;
     Ok(())
 }
+
+fn client_is_tray(client: &NamedPipeServer) -> Result<bool, BoxError> {
+    let mut id = 0;
+    unsafe { GetNamedPipeClientProcessId(HANDLE(client.as_raw_handle()), &mut id)? };
+    let process = unsafe { Owned::new(OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION, false, id)?) };
+    let mut path = [0u16; 1024];
+    let mut len = path.len() as u32;
+    let flags = PROCESS_NAME_WIN32;
+    unsafe { QueryFullProcessImageNameW(*process, flags, PWSTR(path.as_mut_ptr()), &mut len)? };
+    let path = String::from_utf16(&path[..len as usize])?;
+    let tray = std::env::current_exe()?.with_file_name("firewall-tray.exe");
+    // Windows paths ignore case.
+    Ok(path.to_lowercase() == tray.to_string_lossy().to_lowercase())
+}

core/src/os/windows/service.rs

@@ -155,8 +155,9 @@ async fn start_screening(status: &ServiceStatusHandle) -> Result<Vec<&'static st
     let crl = HttpServer::auto(exec.clone()).service(crl);
     tokio::spawn(listen_on(CRL_ADDRESS, 80, &exec)?.serve(crl));
 
-    tokio::spawn(async {
+    let tray_firewall = Arc::clone(&firewall);
-        if let Err(error) = pipe::serve().await {
+    tokio::spawn(async move {
+        if let Err(error) = pipe::serve(tray_firewall).await {
             tracing::error!(%error, "the tray cannot reach the service");
         }
     });

core/src/os/windows/tray.rs

@@ -2,10 +2,11 @@
 
 use super::pipe::PIPE;
 use super::*;
-use muda::{Menu, MenuEvent, MenuItem, PredefinedMenuItem, Submenu};
+use muda::{IsMenuItem, Menu, MenuEvent, MenuItem, PredefinedMenuItem, Submenu};
 use serde::Deserialize;
 use std::io::{BufRead, BufReader, Cursor, Write};
 use std::os::windows::io::AsRawHandle;
+use std::sync::mpsc::{channel, Receiver, Sender};
 use std::time::Duration;
 use tray_icon::{Icon, MouseButtonState, TrayIcon, TrayIconBuilder, TrayIconEvent};
 use windows::core::{w, PCWSTR};
@@ -22,6 +23,8 @@ const MENU_PAUSE: &str = "pause";
 const MENU_RESTART: &str = "restart";
 const MENU_LOG: &str = "log";
 const MENU_QUIT: &str = "quit";
+/// Also the service's request.
+const ALLOW_ONCE: &str = "allow-once";
 const LOGO: &[u8] = include_bytes!("tray.png");
 /// Where blocked packages are listed, below Open logs.
 const BLOCKED_AT: usize = 5;
@@ -62,9 +65,11 @@ pub fn run() -> Result<(), BoxError> {
         menu,
         blocked_separator,
         blocked: Vec::new(),
+        allowed: channel(),
     };
     tray.update();
-    unsafe { SetTimer(None, 0, 2000, None) };
+    // The service holds a new package's download only while it is asked this often.
+    unsafe { SetTimer(None, 0, 500, None) };
     let mut message = MSG::default();
     while unsafe { GetMessageW(&mut message, None, 0, 0) }.0 > 0 {
         unsafe { DispatchMessageW(&message) };
@@ -112,10 +117,13 @@ struct Tray {
     blocked_separator: PredefinedMenuItem,
     /// The most recent, as the menu lists them.
     blocked: Vec<BlockedPackage>,
+    /// Allowed from another thread, so no longer listed.
+    allowed: (Sender<BlockedPackage>, Receiver<BlockedPackage>),
 }
 
 #[derive(Clone, PartialEq, Deserialize)]
 struct BlockedPackage {
+    id: u64,
     eco: String,
     name: String,
     version: Option<String>,
@@ -136,6 +144,11 @@ impl BlockedPackage {
     fn malicious(&self) -> bool {
         self.filter != "age"
     }
+
+    /// Malware is never allowed, and a new package only by version.
+    fn trustable(&self) -> bool {
+        !self.malicious() && self.version.is_some()
+    }
 }
 
 impl Tray {
@@ -161,6 +174,11 @@ impl Tray {
 
     /// The service hands each block over once, so whichever tray asks first shows it.
     fn collect_blocks(&mut self) {
+        let allowed: Vec<_> = self.allowed.1.try_iter().collect();
+        if !allowed.is_empty() {
+            self.blocked.retain(|blocked| !allowed.contains(blocked));
+            self.list_blocked();
+        }
         if self.state != Some(ServiceState::Running) {
             return;
         }
@@ -184,7 +202,14 @@ impl Tray {
         self.blocked.drain(..excess);
         self.list_blocked();
         // Off the UI thread, so the menu keeps working while they are open.
-        std::thread::spawn(move || new.iter().for_each(alert));
+        let allowed = self.allowed.0.clone();
+        std::thread::spawn(move || {
+            for package in new {
+                if alert(&package) {
+                    allow_once(package, &allowed);
+                }
+            }
+        });
     }
 
     fn list_blocked(&self) {
@@ -204,14 +229,28 @@ impl Tray {
                 package.reason.clone()
             };
             let reason = MenuItem::new(reason, false, None);
+            let once = MenuItem::with_id(format!("{ALLOW_ONCE}:{i}"), "Allow Once", true, None);
+            let items: &[&dyn IsMenuItem] = if package.trustable() {
+                &[&reason, &once]
+            } else {
+                &[&reason]
+            };
             let label = format!("{verb} {}", package.label());
-            if let Ok(item) = Submenu::with_items(label, true, &[&reason]) {
+            if let Ok(item) = Submenu::with_items(label, true, items) {
                 let _ = self.menu.insert(&item, BLOCKED_AT + 1 + i);
             }
         }
     }
 
     fn on_menu(&self, id: &str) {
+        if let Some(i) = id.strip_prefix(ALLOW_ONCE).and_then(|i| i.strip_prefix(':')) {
+            let package = i.parse().ok().and_then(|i: usize| self.blocked.get(i));
+            if let Some(package) = package.cloned() {
+                let allowed = self.allowed.0.clone();
+                std::thread::spawn(move || allow_once(package, &allowed));
+            }
+            return;
+        }
         let state = self.state;
         let screening = state == Some(ServiceState::Running);
         let action: fn() -> Result<(), BoxError> = match id {
@@ -237,7 +276,8 @@ impl Tray {
     }
 }
 
-fn alert(package: &BlockedPackage) {
+/// Whether the user chose to allow it once.
+fn alert(package: &BlockedPackage) -> bool {
     let text = format!("{} {}.", package.label(), package.reason);
     let (title, text, style) = if package.malicious() {
         let title = format!("Blocked malware: {}", package.label());
@@ -245,11 +285,33 @@ fn alert(package: &BlockedPackage) {
             + "\n\nIt was not installed. Don't install it from another source. If you didn't expect this "
             + "package, a dependency may be compromised; tell your security team.";
         (title, text, MB_ICONERROR)
-    } else {
+    } else if !package.trustable() {
         ("Held back a new package".to_owned(), text, MB_ICONINFORMATION)
+    } else {
+        let text = text + "\n\nAllow it once?";
+        ("Held back a new package".to_owned(), text, MB_YESNO | MB_ICONINFORMATION)
     };
     let (title, text) = (HSTRING::from(title), HSTRING::from(text));
-    unsafe { MessageBoxW(None, &text, &title, style | MB_SETFOREGROUND) };
+    unsafe { MessageBoxW(None, &text, &title, style | MB_SETFOREGROUND) == IDYES }
+}
+
+/// Tells the user when the install had already stopped waiting.
+fn allow_once(package: BlockedPackage, allowed: &Sender<BlockedPackage>) {
+    let reply = match ask_service(&format!("{ALLOW_ONCE} {}", package.id)) {
+        Ok(reply) => reply,
+        Err(error) => return show_error(error),
+    };
+    match reply.as_str() {
+        "ok" => {}
+        "late" => {
+            let title = format!("Allowed {} for the next minute", package.label());
+            let text = "The install had already stopped waiting for it. Run it again to finish.";
+            let (title, text) = (HSTRING::from(title), HSTRING::from(text));
+            unsafe { MessageBoxW(None, &text, &title, MB_ICONINFORMATION | MB_SETFOREGROUND) };
+        }
+        other => return show_error(other.into()),
+    }
+    let _ = allowed.send(package);
 }
 
 /// One request per connection, as the service answers.

core/src/policies/filters/osv.rs

@@ -41,7 +41,9 @@ impl Filter for Osv {
             if hits.is_empty() {
                 Verdict::Allow
             } else {
-                Verdict::Deny(format!("is flagged malicious by OSV ({})", hits.join(", ")))
+                let links: Vec<String> =
+                    hits.iter().map(|id| format!("{id} https://osv.dev/vulnerability/{id}")).collect();
+                Verdict::Deny(format!("is flagged malicious by OSV: {}", links.join(", ")))
             }
         })
     }

macos/App/BlockAlerts.swift

@@ -30,12 +30,12 @@ enum BlockAlert {
         if package.malicious {
             alert.alertStyle = .critical
             alert.messageText = "Blocked malware: \(package.label) (\(package.eco))"
-            alert.informativeText = "\(package.label) \(package.reason).\n\n"
+            setText(alert, "\(package.label) \(package.reason).\n\n"
                 + "It was not installed. Don't install it from another source. "
-                + "If you didn't expect this package, a dependency may be compromised; tell your security team."
+                + "If you didn't expect this package, a dependency may be compromised; tell your security team.")
         } else {
             alert.messageText = "Held back a new package"
-            alert.informativeText = "\(package.label) (\(package.eco)) \(package.reason)."
+            setText(alert, "\(package.label) (\(package.eco)) \(package.reason).")
             if package.trustable {
                 alert.addButton(withTitle: "Allow Once")
                 alert.addButton(withTitle: "Trust this version")
@@ -56,6 +56,22 @@ enum BlockAlert {
         NSApp.activate(ignoringOtherApps: true)
         alert.runModal()
     }
+
+    /// An alert's own text is plain, so this text goes in a selectable field, where its links open on click.
+    private static func setText(_ alert: NSAlert, _ text: String) {
+        let linked = NSMutableAttributedString(string: text, attributes: [.font: NSFont.systemFont(ofSize: NSFont.smallSystemFontSize)])
+        let detector = try! NSDataDetector(types: NSTextCheckingResult.CheckingType.link.rawValue)
+        for match in detector.matches(in: text, range: NSRange(text.startIndex..., in: text)) {
+            if let url = match.url { linked.addAttribute(.link, value: url, range: match.range) }
+        }
+        let field = NSTextField(wrappingLabelWithString: "")
+        field.allowsEditingTextAttributes = true
+        field.isSelectable = true
+        field.attributedStringValue = linked
+        field.preferredMaxLayoutWidth = 300
+        field.frame.size = field.fittingSize
+        alert.accessoryView = field
+    }
 }
 
 enum AdminAuthorization {