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Merge pull request #76739 from symphorien/mail_plugins
nixos/dovecot: add an option to enable mail_plugins
This commit is contained in:
Léo Gaspard
GitHub
commit
693d834c37
@ -14,18 +14,34 @@ let
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base_dir = ${baseDir}
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protocols = ${concatStringsSep " " cfg.protocols}
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sendmail_path = /run/wrappers/bin/sendmail
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# defining mail_plugins must be done before the first protocol {} filter because of https://doc.dovecot.org/configuration_manual/config_file/config_file_syntax/#variable-expansion
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mail_plugins = $mail_plugins ${concatStringsSep " " cfg.mailPlugins.globally.enable}
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''
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(if cfg.sslServerCert == null then ''
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ssl = no
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disable_plaintext_auth = no
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'' else ''
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ssl_cert = <${cfg.sslServerCert}
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ssl_key = <${cfg.sslServerKey}
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${optionalString (cfg.sslCACert != null) ("ssl_ca = <" + cfg.sslCACert)}
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ssl_dh = <${config.security.dhparams.params.dovecot2.path}
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disable_plaintext_auth = yes
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'')
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(
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concatStringsSep "\n" (
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mapAttrsToList (
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protocol: plugins: ''
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protocol ${protocol} {
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mail_plugins = $mail_plugins ${concatStringsSep " " plugins.enable}
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}
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''
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) cfg.mailPlugins.perProtocol
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)
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)
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(
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if cfg.sslServerCert == null then ''
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ssl = no
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disable_plaintext_auth = no
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'' else ''
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ssl_cert = <${cfg.sslServerCert}
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ssl_key = <${cfg.sslServerKey}
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${optionalString (cfg.sslCACert != null) ("ssl_ca = <" + cfg.sslCACert)}
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ssl_dh = <${config.security.dhparams.params.dovecot2.path}
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disable_plaintext_auth = yes
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''
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)
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''
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default_internal_user = ${cfg.user}
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@ -45,55 +61,58 @@ let
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}
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''
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(optionalString cfg.enablePAM ''
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userdb {
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driver = passwd
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}
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passdb {
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driver = pam
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args = ${optionalString cfg.showPAMFailure "failure_show_msg=yes"} dovecot2
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}
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'')
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(optionalString (cfg.sieveScripts != {}) ''
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plugin {
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${concatStringsSep "\n" (mapAttrsToList (to: from: "sieve_${to} = ${stateDir}/sieve/${to}") cfg.sieveScripts)}
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}
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'')
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(optionalString (cfg.mailboxes != []) ''
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protocol imap {
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namespace inbox {
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inbox=yes
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${concatStringsSep "\n" (map mailboxConfig cfg.mailboxes)}
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(
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optionalString cfg.enablePAM ''
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userdb {
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driver = passwd
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}
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}
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'')
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(optionalString cfg.enableQuota ''
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mail_plugins = $mail_plugins quota
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service quota-status {
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executable = ${dovecotPkg}/libexec/dovecot/quota-status -p postfix
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inet_listener {
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port = ${cfg.quotaPort}
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passdb {
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driver = pam
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args = ${optionalString cfg.showPAMFailure "failure_show_msg=yes"} dovecot2
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}
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client_limit = 1
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}
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''
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)
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protocol imap {
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mail_plugins = $mail_plugins imap_quota
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}
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(
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optionalString (cfg.sieveScripts != {}) ''
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plugin {
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${concatStringsSep "\n" (mapAttrsToList (to: from: "sieve_${to} = ${stateDir}/sieve/${to}") cfg.sieveScripts)}
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}
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''
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)
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plugin {
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quota_rule = *:storage=${cfg.quotaGlobalPerUser}
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quota = maildir:User quota # per virtual mail user quota # BUG/FIXME broken, we couldn't get this working
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quota_status_success = DUNNO
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quota_status_nouser = DUNNO
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quota_status_overquota = "552 5.2.2 Mailbox is full"
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quota_grace = 10%%
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}
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'')
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(
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optionalString (cfg.mailboxes != []) ''
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protocol imap {
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namespace inbox {
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inbox=yes
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${concatStringsSep "\n" (map mailboxConfig cfg.mailboxes)}
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}
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}
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''
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)
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(
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optionalString cfg.enableQuota ''
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service quota-status {
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executable = ${dovecotPkg}/libexec/dovecot/quota-status -p postfix
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inet_listener {
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port = ${cfg.quotaPort}
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}
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client_limit = 1
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}
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plugin {
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quota_rule = *:storage=${cfg.quotaGlobalPerUser}
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quota = maildir:User quota # per virtual mail user quota # BUG/FIXME broken, we couldn't get this working
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quota_status_success = DUNNO
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quota_status_nouser = DUNNO
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quota_status_overquota = "552 5.2.2 Mailbox is full"
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quota_grace = 10%%
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}
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''
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)
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cfg.extraConfig
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];
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@ -107,7 +126,7 @@ let
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mailbox "${mailbox.name}" {
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auto = ${toString mailbox.auto}
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'' + optionalString (mailbox.specialUse != null) ''
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special_use = \${toString mailbox.specialUse}
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special_use = \${toString mailbox.specialUse}
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'' + "}";
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mailboxes = { ... }: {
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@ -160,7 +179,7 @@ in
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protocols = mkOption {
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type = types.listOf types.str;
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default = [ ];
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default = [];
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description = "Additional listeners to start when Dovecot is enabled.";
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};
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@ -183,6 +202,43 @@ in
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description = "Additional entries to put verbatim into Dovecot's config file.";
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};
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mailPlugins =
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let
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plugins = hint: types.submodule {
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options = {
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enable = mkOption {
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type = types.listOf types.str;
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default = [];
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description = "mail plugins to enable as a list of strings to append to the ${hint} <literal>$mail_plugins</literal> configuration variable";
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};
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};
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};
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in
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mkOption {
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type = with types; submodule {
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options = {
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globally = mkOption {
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description = "Additional entries to add to the mail_plugins variable for all protocols";
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type = plugins "top-level";
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example = { enable = [ "virtual" ]; };
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default = { enable = []; };
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};
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perProtocol = mkOption {
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description = "Additional entries to add to the mail_plugins variable, per protocol";
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type = attrsOf (plugins "corresponding per-protocol");
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default = {};
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example = { imap = [ "imap_acl" ]; };
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};
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};
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};
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description = "Additional entries to add to the mail_plugins variable, globally and per protocol";
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example = {
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globally.enable = [ "acl" ];
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perProtocol.imap.enable = [ "imap_acl" ];
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};
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default = { globally.enable = []; perProtocol = {}; };
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};
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configFile = mkOption {
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type = types.nullOr types.path;
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default = null;
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@ -305,27 +361,33 @@ in
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enable = true;
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params.dovecot2 = {};
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};
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services.dovecot2.protocols =
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optional cfg.enableImap "imap"
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++ optional cfg.enablePop3 "pop3"
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++ optional cfg.enableLmtp "lmtp";
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services.dovecot2.protocols =
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optional cfg.enableImap "imap"
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++ optional cfg.enablePop3 "pop3"
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++ optional cfg.enableLmtp "lmtp";
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services.dovecot2.mailPlugins = mkIf cfg.enableQuota {
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globally.enable = [ "quota" ];
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perProtocol.imap.enable = [ "imap_quota" ];
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};
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users.users = {
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dovenull =
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{ uid = config.ids.uids.dovenull2;
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{
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uid = config.ids.uids.dovenull2;
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description = "Dovecot user for untrusted logins";
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group = "dovenull";
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};
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} // optionalAttrs (cfg.user == "dovecot2") {
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dovecot2 =
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{ uid = config.ids.uids.dovecot2;
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description = "Dovecot user";
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group = cfg.group;
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};
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{
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uid = config.ids.uids.dovecot2;
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description = "Dovecot user";
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group = cfg.group;
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};
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} // optionalAttrs (cfg.createMailUser && cfg.mailUser != null) {
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${cfg.mailUser} =
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{ description = "Virtual Mail User"; } //
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optionalAttrs (cfg.mailGroup != null)
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{ description = "Virtual Mail User"; } // optionalAttrs (cfg.mailGroup != null)
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{ group = cfg.mailGroup; };
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};
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@ -334,7 +396,7 @@ in
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} // optionalAttrs (cfg.group == "dovecot2") {
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dovecot2.gid = config.ids.gids.dovecot2;
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} // optionalAttrs (cfg.createMailUser && cfg.mailGroup != null) {
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${cfg.mailGroup} = { };
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${cfg.mailGroup} = {};
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};
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environment.etc."dovecot/modules".source = modulesDir;
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@ -363,15 +425,19 @@ in
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rm -rf ${stateDir}/sieve
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'' + optionalString (cfg.sieveScripts != {}) ''
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mkdir -p ${stateDir}/sieve
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${concatStringsSep "\n" (mapAttrsToList (to: from: ''
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if [ -d '${from}' ]; then
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mkdir '${stateDir}/sieve/${to}'
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cp -p "${from}/"*.sieve '${stateDir}/sieve/${to}'
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else
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cp -p '${from}' '${stateDir}/sieve/${to}'
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fi
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${pkgs.dovecot_pigeonhole}/bin/sievec '${stateDir}/sieve/${to}'
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'') cfg.sieveScripts)}
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${concatStringsSep "\n" (
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mapAttrsToList (
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to: from: ''
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if [ -d '${from}' ]; then
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mkdir '${stateDir}/sieve/${to}'
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cp -p "${from}/"*.sieve '${stateDir}/sieve/${to}'
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else
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cp -p '${from}' '${stateDir}/sieve/${to}'
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fi
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${pkgs.dovecot_pigeonhole}/bin/sievec '${stateDir}/sieve/${to}'
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''
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) cfg.sieveScripts
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)}
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chown -R '${cfg.mailUser}:${cfg.mailGroup}' '${stateDir}/sieve'
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'';
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};
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@ -379,17 +445,21 @@ in
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environment.systemPackages = [ dovecotPkg ];
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assertions = [
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{ assertion = intersectLists cfg.protocols [ "pop3" "imap" ] != [];
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{
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assertion = intersectLists cfg.protocols [ "pop3" "imap" ] != [];
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message = "dovecot needs at least one of the IMAP or POP3 listeners enabled";
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}
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{ assertion = (cfg.sslServerCert == null) == (cfg.sslServerKey == null)
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&& (cfg.sslCACert != null -> !(cfg.sslServerCert == null || cfg.sslServerKey == null));
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{
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assertion = (cfg.sslServerCert == null) == (cfg.sslServerKey == null)
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&& (cfg.sslCACert != null -> !(cfg.sslServerCert == null || cfg.sslServerKey == null));
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message = "dovecot needs both sslServerCert and sslServerKey defined for working crypto";
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}
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{ assertion = cfg.showPAMFailure -> cfg.enablePAM;
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{
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assertion = cfg.showPAMFailure -> cfg.enablePAM;
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message = "dovecot is configured with showPAMFailure while enablePAM is disabled";
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}
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{ assertion = cfg.sieveScripts != {} -> (cfg.mailUser != null && cfg.mailGroup != null);
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{
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assertion = cfg.sieveScripts != {} -> (cfg.mailUser != null && cfg.mailGroup != null);
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message = "dovecot requires mailUser and mailGroup to be set when sieveScripts is set";
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}
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];
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