1 files changed, 135 insertions, 11 deletions

diff --git a/modules/private/ftp.nix b/modules/private/ftp.nix
index 1428198..111d6bc 100644
--- a/modules/private/ftp.nix
+++ b/modules/private/ftp.nix
@@ -1,34 +1,52 @@
 { lib, pkgs, config, ... }:
 let
   package = pkgs.pure-ftpd.override { ldapFtpId = "immaeFtp"; };
+  pure-ftpd-enabled = config.myServices.ftp.pure-ftpd.enable;
+  proftpd-enabled = config.myServices.ftp.proftpd.enable;
 in
 {
   options = {
-    services.pure-ftpd.enable = lib.mkOption {
+    myServices.ftp.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      description = ''
+        Whether to enable ftp.
+      '';
+    };
+    myServices.ftp.pure-ftpd.enable = lib.mkOption {
       type = lib.types.bool;
       default = false;
       description = ''
         Whether to enable pure-ftpd.
       '';
     };
+    myServices.ftp.proftpd.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = true;
+      description = ''
+        Whether to enable proftpd.
+      '';
+    };
   };
 
-  config = lib.mkIf config.services.pure-ftpd.enable {
+  config = lib.mkIf config.myServices.ftp.enable {
     services.duplyBackup.profiles.ftp = {
       rootDir = "/var/lib/ftp";
       remotes = [ "eriomem" "ovh" ];
     };
     security.acme.certs."ftp" = config.myServices.certificates.certConfig // {
       domain = "eldiron.immae.eu";
-      postRun = ''
+      postRun = (lib.optionalString pure-ftpd-enabled ''
         systemctl restart pure-ftpd.service
-      '';
+      '') + (lib.optionalString proftpd-enabled ''
+        systemctl restart proftpd.service
+      '');
       extraDomains = { "ftp.immae.eu" = null; };
     };
 
     networking = {
       firewall = {
-        allowedTCPPorts = [ 21 ];
+        allowedTCPPorts = [ 21 115 ];
         allowedTCPPortRanges = [ { from = 40000; to = 50000; } ];
       };
     };
@@ -43,11 +61,13 @@ in
 
     users.groups.ftp.gid = config.ids.gids.ftp;
 
-    system.activationScripts.pure-ftpd = ''
+    system.activationScripts.ftp = ''
       install -m 0755 -o ftp -g ftp -d /var/lib/ftp
-      '';
+    '' + (lib.optionalString proftpd-enabled ''
+      install -m 0755 -o nobody -g nogroup -d /var/lib/proftpd/authorized_keys
+      '');
 
-    secrets.keys."pure-ftpd-ldap" = {
+    secrets.keys."pure-ftpd-ldap" = lib.mkIf pure-ftpd-enabled {
       permissions = "0400";
       user = "ftp";
       group = "ftp";
@@ -62,7 +82,7 @@ in
         LDAPForceDefaultUID False
         LDAPDefaultGID      100
         LDAPForceDefaultGID False
-        LDAPFilter          ${config.myEnv.ftp.ldap.filter}
+        LDAPFilter          ${config.myEnv.ftp.ldap.pure-ftpd_filter}
 
         LDAPAuthMethod      BIND
 
@@ -71,15 +91,42 @@ in
         LDAPHomeDir         immaeFtpDirectory
         '';
     };
+    secrets.keys."proftpd-ldap.conf" = lib.mkIf proftpd-enabled {
+      permissions = "0400";
+      user = "ftp";
+      group = "ftp";
+      text = ''
+        LDAPServer          ldaps://${config.myEnv.ftp.ldap.host}:636/??sub
+        LDAPUseTLS          on
+        LDAPAuthBinds       on
+        LDAPBindDN          "${config.myEnv.ftp.ldap.dn}" "${config.myEnv.ftp.ldap.password}"
+        LDAPSearchScope     subtree
+        LDAPAuthBinds       on
+        LDAPDefaultGID      100
+        LDAPDefaultUID      500
+        LDAPForceDefaultUID off
+        LDAPForceDefaultGID off
+        LDAPAttr            gidNumber immaeFtpGid
+        LDAPAttr            uidNumber immaeFtpUid
+        LDAPAttr            homeDirectory immaeFtpDirectory
+        LDAPUsers           "${config.myEnv.ftp.ldap.base}" "${config.myEnv.ftp.ldap.proftpd_filter}"
+        LDAPGroups          "${config.myEnv.ftp.ldap.base}"
+      '';
+    };
 
-    services.filesWatcher.pure-ftpd = {
+    services.filesWatcher.pure-ftpd = lib.mkIf pure-ftpd-enabled {
       restart = true;
       paths = [ config.secrets.fullPaths."pure-ftpd-ldap" ];
     };
+    services.filesWatcher.proftpd = lib.mkIf proftpd-enabled {
+      restart = true;
+      paths = [ config.secrets.fullPaths."proftpd-ldap.conf" ];
+    };
 
     systemd.services.pure-ftpd = let
       configFile = pkgs.writeText "pure-ftpd.conf" ''
         PassivePortRange             40000 50000
+        Bind                         42
         ChrootEveryone               yes
         CreateHomeDir                yes
         BrokenClientsCompatibility   yes
@@ -112,7 +159,7 @@ in
         TLS                          1
         CertFile                     ${config.security.acme.certs.ftp.directory}/full.pem
         '';
-    in {
+    in lib.mkIf pure-ftpd-enabled {
       description = "Pure-FTPd server";
       wantedBy = [ "multi-user.target" ];
       after = [ "network.target" ];
@@ -121,6 +168,83 @@ in
       serviceConfig.Type = "forking";
       serviceConfig.PIDFile = "/run/pure-ftpd.pid";
     };
+
+    systemd.services.proftpd = let
+      configFile = pkgs.writeText "proftpd.conf" ''
+        ServerName              "ProFTPD"
+        ServerType              standalone
+        DefaultServer           on
+
+        Port                    21
+        UseIPv6                 on
+        Umask                   022
+        MaxInstances            30
+        MaxClients              50
+        MaxClientsPerHost       8
+
+        # Set the user and group under which the server will run.
+        User                    ftp
+        Group                   ftp
+
+        CreateHome              on
+        DefaultRoot             ~
+
+        AllowOverwrite          on
+
+        TLSEngine               on
+        TLSRequired             off
+        TLSProtocol             TLSv1.1 TLSv1.2 TLSv1.3
+
+        TLSCertificateChainFile ${config.security.acme.certs.ftp.directory}/fullchain.pem
+        TLSECCertificateFile    ${config.security.acme.certs.ftp.directory}/cert.pem
+        TLSECCertificateKeyFile ${config.security.acme.certs.ftp.directory}/key.pem
+        TLSRenegotiate none
+        PidFile                 /run/proftpd/proftpd.pid
+
+        ScoreboardFile          /run/proftpd/proftpd.scoreboard
+
+        PassivePorts            40000 50000
+        #DebugLevel             10
+        Include                 ${config.secrets.fullPaths."proftpd-ldap.conf"}
+
+        RequireValidShell       off
+
+        # Bar use of SITE CHMOD by default
+        <Limit SITE_CHMOD>
+          DenyAll
+        </Limit>
+
+        <VirtualHost 0.0.0.0>
+          Umask                         022
+          Port                          115
+          SFTPEngine                    on
+          CreateHome                    on
+          DefaultRoot                   ~
+
+          AllowOverwrite                on
+
+          SFTPHostKey                   /etc/ssh/ssh_host_ed25519_key
+          SFTPHostKey                   /etc/ssh/ssh_host_rsa_key
+          Include                       ${config.secrets.fullPaths."proftpd-ldap.conf"}
+          RequireValidShell             off
+          SFTPAuthorizedUserKeys        file:/var/lib/proftpd/authorized_keys/%u
+          SFTPAuthMethods               password publickey
+        </VirtualHost>
+        '';
+    in lib.mkIf proftpd-enabled {
+      description = "ProFTPD server";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "network.target" ];
+
+      serviceConfig.ExecStart = "${pkgs.proftpd}/bin/proftpd -c ${configFile}";
+      serviceConfig.Type = "forking";
+      serviceConfig.PIDFile = "/run/proftpd/proftpd.pid";
+      serviceConfig.RuntimeDirectory = "proftpd";
+    };
+
+    services.cron.systemCronJobs = lib.mkIf proftpd-enabled [
+      "*/2 * * * * nobody ${./ftp_sync.sh}"
+    ];
   };
 
 }