AcmeFactory

src/symbols/acme/cert.rs

@@ -2,22 +2,43 @@ use std::error::Error;
 use std::fmt;
 use std::fs::File as FsFile;
 use std::io::Write;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
 use crate::command_runner::CommandRunner;
 use crate::resources::Resource;
 use crate::symbols::{Action, OwnedSymbolAction, Symbol, SymbolAction, SymbolRunner};
 
-pub struct AcmeCert<'a, D: AsRef<str>, C: CommandRunner> {
+pub struct AcmeCert<
+  'a,
+  D: AsRef<str>,
+  R: AsRef<Path>,
+  C: CommandRunner,
+  K: AsRef<Path>,
+  CH: AsRef<Path>,
+> {
   domain: D,
   command_runner: &'a C,
+  root_cert_path: R,
+  account_key_path: K,
+  challenges_path: CH,
 }
 
-impl<'a, D: AsRef<str>, C: CommandRunner> AcmeCert<'a, D, C> {
-  pub fn new(domain: D, command_runner: &'a C) -> Self {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner, K: AsRef<Path>, CH: AsRef<Path>>
+  AcmeCert<'a, D, R, C, K, CH>
+{
+  pub fn new(
+    domain: D,
+    command_runner: &'a C,
+    root_cert_path: R,
+    account_key_path: K,
+    challenges_path: CH,
+  ) -> Self {
     AcmeCert {
       domain,
       command_runner,
+      root_cert_path,
+      account_key_path,
+      challenges_path,
     }
   }
 
@@ -30,7 +51,9 @@ impl<'a, D: AsRef<str>, C: CommandRunner> AcmeCert<'a, D, C> {
   }
 }
 
-impl<'a, D: AsRef<str>, C: CommandRunner> fmt::Display for AcmeCert<'a, D, C> {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner, K: AsRef<Path>, CH: AsRef<Path>>
+  fmt::Display for AcmeCert<'a, D, R, C, K, CH>
+{
   fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     write!(f, "AcmeCert {}", self.domain.as_ref())
   }
@@ -38,7 +61,9 @@ impl<'a, D: AsRef<str>, C: CommandRunner> fmt::Display for AcmeCert<'a, D, C> {
 
 const DAYS_IN_SECONDS: u32 = 24 * 60 * 60;
 
-impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCert<'a, D, C> {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner, K: AsRef<Path>, CH: AsRef<Path>> Symbol
+  for AcmeCert<'a, D, R, C, K, CH>
+{
   fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
     if !self.get_cert_path().exists() {
       return Ok(false);
@@ -72,7 +97,7 @@ impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCert<'a, D, C> {
             args![
               "verify",
               "--untrusted",
-              "/home/acme/lets_encrypt_x3_cross_signed.pem",
+              self.root_cert_path.as_ref(),
               self.get_cert_path(),
             ],
           )
@@ -97,11 +122,11 @@ impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCert<'a, D, C> {
       "acme-tiny",
       args![
         "--account-key",
-        "/home/acme/account.key",
+        self.account_key_path.as_ref(),
         "--csr",
         self.get_csr_path(),
         "--acme-dir",
-        "/home/acme/challenges/",
+        self.challenges_path.as_ref(),
       ],
     )?;
     let mut file = FsFile::create(self.get_cert_path())?;

src/symbols/acme/chain.rs

@@ -2,22 +2,24 @@ use std::error::Error;
 use std::fmt;
 use std::fs::File as FsFile;
 use std::io::Write;
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
 use crate::command_runner::CommandRunner;
 use crate::resources::Resource;
 use crate::symbols::{Action, OwnedSymbolAction, Symbol, SymbolAction, SymbolRunner};
 
-pub struct AcmeCertChain<'a, D: AsRef<str>, C: CommandRunner> {
+pub struct AcmeCertChain<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner> {
   domain: D,
   command_runner: &'a C,
+  root_cert: R,
 }
 
-impl<'a, D: AsRef<str>, C: CommandRunner> AcmeCertChain<'a, D, C> {
-  pub fn new(domain: D, command_runner: &'a C) -> Self {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner> AcmeCertChain<'a, D, R, C> {
+  pub fn new(domain: D, command_runner: &'a C, root_cert: R) -> Self {
     AcmeCertChain {
       domain,
       command_runner,
+      root_cert,
     }
   }
 
@@ -30,7 +32,9 @@ impl<'a, D: AsRef<str>, C: CommandRunner> AcmeCertChain<'a, D, C> {
   }
 }
 
-impl<'a, D: AsRef<str>, C: CommandRunner> fmt::Display for AcmeCertChain<'a, D, C> {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner> fmt::Display
+  for AcmeCertChain<'a, D, R, C>
+{
   fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
     write!(f, "AcmeCertChain {}", self.domain.as_ref())
   }
@@ -38,7 +42,7 @@ impl<'a, D: AsRef<str>, C: CommandRunner> fmt::Display for AcmeCertChain<'a, D,
 
 const DAYS_IN_SECONDS: u32 = 24 * 60 * 60;
 
-impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCertChain<'a, D, C> {
+impl<'a, D: AsRef<str>, R: AsRef<Path>, C: CommandRunner> Symbol for AcmeCertChain<'a, D, R, C> {
   fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
     if !self.get_cert_chain_path().exists() {
       return Ok(false);
@@ -74,7 +78,7 @@ impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCertChain<'a, D, C> {
           args![
             "verify",
             "-untrusted",
-            "/home/acme/lets_encrypt_x3_cross_signed.pem",
+            self.root_cert.as_ref(),
             self.get_cert_chain_path(),
           ],
         )
@@ -85,10 +89,7 @@ impl<'a, D: AsRef<str>, C: CommandRunner> Symbol for AcmeCertChain<'a, D, C> {
   fn execute(&self) -> Result<(), Box<dyn Error>> {
     let output = self.command_runner.get_output(
       "cat",
-      args![
-        self.get_single_cert_path(),
-        "/home/acme/lets_encrypt_x3_cross_signed.pem",
-      ],
+      args![self.get_single_cert_path(), self.root_cert.as_ref(),],
     )?;
     let mut file = FsFile::create(self.get_cert_chain_path())?;
     file.write_all(&output)?;

src/symbols/acme/mod.rs

@@ -1,9 +1,97 @@
+use std::borrow::Cow;
+use std::path::{Path, PathBuf};
+
+use crate::command_runner::CommandRunner;
+use crate::command_runner::SetuidCommandRunner;
+use crate::symbols::dir::Dir;
+use crate::symbols::file::File;
+use crate::symbols::list::List;
+use crate::symbols::owner::Owner;
+use crate::symbols::Symbol;
+
 mod account_key;
 mod cert;
 mod chain;
-mod user;
 
 pub use self::account_key::AcmeAccountKey;
 pub use self::cert::AcmeCert;
 pub use self::chain::AcmeCertChain;
-pub use self::user::new as newAcmeUser;
+
+const ROOT_CERT_FILE_NAME: &str = "lets_encrypt_x3_cross_signed.pem";
+const ACCOUNT_KEY_FILE_NAME: &str = "account.key";
+
+pub struct Factory<'a, U: AsRef<str>, H: AsRef<Path>, C: AsRef<str>, R: CommandRunner> {
+  user_name: U,
+  home_dir: H,
+  cert: C,
+  command_runner: &'a R,
+  acme_command_runner: SetuidCommandRunner<'a, U, R>,
+}
+
+impl<'a, U: Clone + AsRef<str>, H: AsRef<Path>, C: AsRef<str>, R: CommandRunner>
+  Factory<'a, U, H, C, R>
+{
+  pub fn new(user_name: U, home_dir: H, cert: C, command_runner: &'a R) -> Self {
+    let acme_command_runner = SetuidCommandRunner::new(user_name.clone(), command_runner);
+    Self {
+      user_name,
+      home_dir,
+      cert,
+      command_runner,
+      acme_command_runner,
+    }
+  }
+  pub fn get_challenges_dir(&'a self) -> Cow<Path> {
+    [self.home_dir.as_ref(), "challenges".as_ref()]
+      .iter()
+      .collect::<PathBuf>()
+      .into()
+  }
+  pub fn get_init(&'a self) -> impl Symbol + 'a {
+    let root_cert_path: PathBuf = [self.home_dir.as_ref(), ROOT_CERT_FILE_NAME.as_ref()]
+      .iter()
+      .collect();
+    let account_key_file: PathBuf = [self.home_dir.as_ref(), ACCOUNT_KEY_FILE_NAME.as_ref()]
+      .iter()
+      .collect();
+    List::from((
+      AcmeAccountKey::new(account_key_file.clone(), self.command_runner),
+      Owner::new(
+        account_key_file,
+        self.user_name.clone(),
+        self.command_runner,
+      ),
+      Dir::new(self.get_challenges_dir()),
+      Owner::new(
+        self.get_challenges_dir(),
+        self.user_name.clone(),
+        self.command_runner,
+      ),
+      Dir::new("/etc/ssl/local_certs"),
+      Owner::new(
+        "/etc/ssl/local_certs",
+        self.user_name.clone(),
+        self.command_runner,
+      ),
+      File::new(root_cert_path, self.cert.as_ref()),
+    ))
+  }
+  pub fn get_cert<HOST: 'a + Clone + AsRef<str>>(&'a self, host: HOST) -> impl Symbol + 'a {
+    let root_cert_path: PathBuf = [self.home_dir.as_ref(), ROOT_CERT_FILE_NAME.as_ref()]
+      .iter()
+      .collect();
+    let account_key_path: PathBuf = [self.home_dir.as_ref(), ACCOUNT_KEY_FILE_NAME.as_ref()]
+      .iter()
+      .collect();
+    List::from((
+      AcmeCert::new(
+        host.clone(),
+        &self.acme_command_runner,
+        root_cert_path.clone(),
+        account_key_path,
+        self.get_challenges_dir(),
+      ),
+      AcmeCertChain::new(host, &self.acme_command_runner, root_cert_path),
+    ))
+  }
+}

src/symbols/acme/user.rs

@@ -1,28 +0,0 @@
-use std::path::{Path, PathBuf};
-
-use crate::command_runner::CommandRunner;
-use crate::symbols::acme::AcmeAccountKey;
-use crate::symbols::dir::Dir;
-use crate::symbols::file::File;
-use crate::symbols::list::List;
-use crate::symbols::owner::Owner;
-use crate::symbols::Symbol;
-
-pub fn new<'a, R: CommandRunner, C: 'a + AsRef<str>, U: 'a + AsRef<str> + Clone, H: AsRef<Path>>(
-  command_runner: &'a R,
-  cert: C,
-  user_name: U,
-  home: H,
-) -> impl Symbol + 'a {
-  let path = |rel: &str| [home.as_ref(), rel.as_ref()].iter().collect::<PathBuf>();
-  let account_key_file = path("account.key");
-  List::from((
-    AcmeAccountKey::new(account_key_file.clone(), command_runner),
-    Owner::new(account_key_file, user_name.clone(), command_runner),
-    Dir::new(path("challenges")),
-    Owner::new(path("challenges"), user_name.clone(), command_runner),
-    Dir::new("/etc/ssl/local_certs"),
-    Owner::new("/etc/ssl/local_certs", user_name, command_runner),
-    File::new(path("lets_encrypt_x3_cross_signed.pem"), cert),
-  ))
-}

src/symbols/factory.rs

@@ -2,9 +2,9 @@ use std::borrow::Cow;
 use std::path::Path;
 use std::path::PathBuf;
 
-use crate::command_runner::{CommandRunner, SetuidCommandRunner};
+use crate::command_runner::CommandRunner;
 use crate::storage::{SimpleStorage, Storage};
-use crate::symbols::acme::{newAcmeUser, AcmeCert, AcmeCertChain};
+use crate::symbols::acme::Factory as AcmeFactory;
 use crate::symbols::cron::Cron;
 use crate::symbols::file::File;
 use crate::symbols::git::checkout::GitCheckout;
@@ -29,27 +29,37 @@ pub trait Policy {
   fn socket_path(&self, user_name: &str, service_name: &str) -> PathBuf {
     format!("/var/tmp/{}-{}.socket", user_name, service_name).into()
   }
+  fn acme_user(&self) -> Cow<str> {
+    "acme".into()
+  }
 }
 
 pub struct DefaultPolicy;
 
 impl Policy for DefaultPolicy {}
 
-pub struct SymbolFactory<'a, C: 'a + CommandRunner, R: 'a + SymbolRunner, P: 'a + Policy> {
+pub struct SymbolFactory<
+  'a,
+  C: 'a + CommandRunner,
+  R: 'a + SymbolRunner,
+  P: 'a + Policy,
+> {
   command_runner: &'a C,
-  acme_command_runner: SetuidCommandRunner<'a, Cow<'a, str>, C>,
+  acme_factory: AcmeFactory<'a, Cow<'a, str>, PathBuf, &'a str, C>,
   symbol_runner: &'a R,
   policy: &'a P,
 }
 
-impl<'b, C: 'b + CommandRunner, R: 'b + SymbolRunner, P: 'b + Policy> SymbolFactory<'b, C, R, P> {
-  pub fn new(command_runner: &'b C, symbol_runner: &'b R, policy: &'b P) -> Self {
-    let acme_user = "acme"; // FIXME: CONFIG
-
-    let acme_command_runner = SetuidCommandRunner::new(acme_user.into(), command_runner);
+impl<'b, C: 'b + CommandRunner, R: 'b + SymbolRunner, P: 'b + Policy>
+  SymbolFactory<'b, C, R, P>
+{
+  pub fn new(command_runner: &'b C, symbol_runner: &'b R, policy: &'b P, cert: &'b str) -> Self {
+    let acme_user = policy.acme_user();
+    let acme_home = policy.home_for_user(&acme_user);
+    let acme_factory = AcmeFactory::new(acme_user, acme_home, cert, command_runner);
     SymbolFactory {
       command_runner,
-      acme_command_runner,
+      acme_factory,
       symbol_runner,
       policy,
     }
@@ -66,9 +76,8 @@ impl<'b, C: 'b + CommandRunner, R: 'b + SymbolRunner, P: 'b + Policy> SymbolFact
         nginx_server_symbol,
         ReloadService::new("nginx", self.command_runner),
       ),
-      AcmeCert::new(host, &self.acme_command_runner),
       Hook::new(
-        AcmeCertChain::new(host, &self.acme_command_runner),
+        self.acme_factory.get_cert(host),
         ReloadService::new("nginx", self.command_runner),
       ),
     ))
@@ -76,10 +85,13 @@ impl<'b, C: 'b + CommandRunner, R: 'b + SymbolRunner, P: 'b + Policy> SymbolFact
   pub fn get_nginx_acme_challenge_config<'a>(&'a self) -> impl Symbol + 'a {
     File::new(
       "/etc/nginx/snippets/acme-challenge.conf",
-      "location ^~ /.well-known/acme-challenge/ {
-  alias /home/acme/challenges/;
+      format!(
+        "location ^~ /.well-known/acme-challenge/ {{
+  alias {}/challenges/;
   try_files $uri =404;
-}",
+}}",
+        self.acme_factory.get_challenges_dir().to_str().unwrap()
+      ),
     )
   }
 
@@ -340,13 +352,8 @@ env[PATH] = /usr/local/bin:/usr/bin:/bin
     Cron::new(user, content, self.command_runner)
   }
 
-  pub fn get_acme_user<'a, S: 'a + AsRef<str> + Clone, D: 'a + AsRef<str>>(
-    &'a self,
-    cert: D,
-    user_name: S,
-  ) -> impl Symbol + 'a {
-    let home = self.policy.home_for_user(user_name.as_ref());
-    newAcmeUser(self.command_runner, cert, user_name.clone(), home)
+  pub fn get_acme_user<'a>(&'a self) -> impl Symbol + 'a {
+    self.acme_factory.get_init()
   }
 
   pub fn get_systemd_user_service<'a>(