client: add uninstall command

client/src/data_store.rs

@@ -5,7 +5,7 @@ use shared::{ensure_dirs_exist, Cidr, IoErrorContext, Peer, CLIENT_DATA_PATH};
 use std::{
     fs::{File, OpenOptions},
     io::{Read, Seek, SeekFrom, Write},
-    path::Path,
+    path::{Path, PathBuf},
 };
 use wgctrl::InterfaceName;
 
@@ -33,7 +33,11 @@ impl DataStore {
             .with_path(path)?;
 
         if shared::chmod(&file, 0o600)? {
-            println!("{} updated permissions for {} to 0600.", "[!]".yellow(), path.display());
+            println!(
+                "{} updated permissions for {} to 0600.",
+                "[!]".yellow(),
+                path.display()
+            );
         }
 
         let mut json = String::new();
@@ -46,14 +50,15 @@ impl DataStore {
         Ok(Self { file, contents })
     }
 
-    fn _open(interface: &InterfaceName, create: bool) -> Result<Self, Error> {
-        ensure_dirs_exist(&[*CLIENT_DATA_PATH])?;
-        Self::open_with_path(
+    pub fn get_path(interface: &InterfaceName) -> PathBuf {
         CLIENT_DATA_PATH
             .join(interface.to_string())
-                .with_extension("json"),
-            create,
-        )
+            .with_extension("json")
+    }
+
+    fn _open(interface: &InterfaceName, create: bool) -> Result<Self, Error> {
+        ensure_dirs_exist(&[*CLIENT_DATA_PATH])?;
+        Self::open_with_path(Self::get_path(interface), create)
     }
 
     pub fn open(interface: &InterfaceName) -> Result<Self, Error> {

client/src/main.rs

@@ -96,6 +96,9 @@ enum Command {
         hosts: HostsOpt,
     },
 
+    /// Uninstall an innernet network.
+    Uninstall { interface: Interface },
+
     /// Bring down the interface (equivalent to "wg-quick down [interface]")
     Down { interface: Interface },
 
@@ -416,6 +419,37 @@ fn fetch(
     Ok(())
 }
 
+fn uninstall(interface: &InterfaceName) -> Result<(), Error> {
+    let theme = ColorfulTheme::default();
+    if Confirm::with_theme(&theme)
+        .with_prompt(&format!(
+            "Permanently delete network \"{}\"?",
+            interface.as_str_lossy().yellow()
+        ))
+        .default(false)
+        .interact()?
+    {
+        println!("{} bringing down interface (if up).", "[*]".dimmed());
+        wg::down(interface).ok();
+        let config = InterfaceConfig::get_path(interface);
+        let data = DataStore::get_path(interface);
+        std::fs::remove_file(&config)
+            .with_path(&config)
+            .map_err(|e| println!("[!] {}", e.to_string().yellow()))
+            .ok();
+        std::fs::remove_file(&data)
+            .with_path(&data)
+            .map_err(|e| println!("[!] {}", e.to_string().yellow()))
+            .ok();
+        println!(
+            "{} network {} is uninstalled.",
+            "[*]".dimmed(),
+            interface.as_str_lossy().yellow()
+        );
+    }
+    Ok(())
+}
+
 fn add_cidr(interface: &InterfaceName) -> Result<(), Error> {
     let InterfaceConfig { server, .. } = InterfaceConfig::from_interface(interface)?;
     println!("Fetching CIDRs");
@@ -790,6 +824,7 @@ fn run(opt: Opt) -> Result<(), Error> {
             hosts.into(),
         )?,
         Command::Down { interface } => wg::down(&interface)?,
+        Command::Uninstall { interface } => uninstall(&interface)?,
         Command::AddPeer { interface } => add_peer(&interface)?,
         Command::AddCidr { interface } => add_cidr(&interface)?,
         Command::DisablePeer { interface } => enable_or_disable_peer(&interface, false)?,

shared/src/interface_config.rs

@@ -67,7 +67,11 @@ impl InterfaceConfig {
             .with_path(path)?;
         if let Some(val) = mode {
             if crate::chmod(&target_file, 0o600)? {
-                println!("{} updated permissions for {} to 0600.", "[!]".yellow(), path.display());
+                println!(
+                    "{} updated permissions for {} to 0600.",
+                    "[!]".yellow(),
+                    path.display()
+                );
             }
             let metadata = target_file.metadata()?;
             let mut permissions = metadata.permissions();
@@ -114,16 +118,24 @@ impl InterfaceConfig {
         let path = Self::build_config_file_path(interface)?;
         let file = File::open(&path).with_path(&path)?;
         if crate::chmod(&file, 0o600)? {
-            println!("{} updated permissions for {} to 0600.", "[!]".yellow(), path.display());
+            println!(
+                "{} updated permissions for {} to 0600.",
+                "[!]".yellow(),
+                path.display()
+            );
         }
         Self::from_file(path)
     }
 
+    pub fn get_path(interface: &InterfaceName) -> PathBuf {
+        CLIENT_CONFIG_PATH
+            .join(interface.to_string())
+            .with_extension("conf")
+    }
+
     fn build_config_file_path(interface: &InterfaceName) -> Result<PathBuf, Error> {
         ensure_dirs_exist(&[*CLIENT_CONFIG_PATH])?;
-        Ok(CLIENT_CONFIG_PATH
-            .join(interface.to_string())
-            .with_extension("conf"))
+        Ok(Self::get_path(interface))
     }
 }