install/logical/friot/dovecot.nix

   1 {pkgs, lib, config, system, ...}:
   2 let inherit (builtins) toString toFile attrNames;
   3     inherit (lib) types;
   4     inherit (config.services) dovecot2 postfix x509;
   5     unlines     = lib.concatStringsSep "\n";
   6     when        = x: y: if x == null then "" else y;
   7     extSep      = postfix.recipientDelimiter;
   8     dirSep      = extSep;
   9     libDir      = "/var/lib/dovecot";
  10     mailDir     = "${libDir}/mail";
  11     sieveDir    = "${libDir}/sieve";
  12     authDir     = "${libDir}/auth";
  13     authUser    = dovecot2.mailUser;  # TODO: php_roundcube
  14     authGroup   = dovecot2.mailGroup; # TODO: php_roundcube
  15     escapeGroup = lib.stringAsChars (c: if "a"<=c && c<="z"
  16                                         || "0"<=c && c<="9"
  17                                         || c=="-"
  18                                         then c else "_");
  19 in
  20 {
  21 config = {
  22   environment.etc."nginx/site.d/autoconfig.conf".source =
  23     let servers = lib.concatMapStringsSep " "
  24                    (dom: "autoconfig.${dom}")
  25                    (attrNames dovecot2.domains);
  26         autoconfigSite = pkgs.writeTextFile {
  27           name = "autoconfig";
  28           destination = "/mail/config-v1.1.xml";
  29           text = ''
  30             <?xml version="1.0"?>
  31             <clientConfig version="1.1">
  32               <emailProvider id="%EMAILDOMAIN%">
  33                 <!-- <displayName></displayName> -->
  34                 <!-- <displayShortName></displayShortName> -->
  35                 <domain>%EMAILDOMAIN%</domain>
  36                 <incomingServer type="imap">
  37                   <hostname>imap.%EMAILDOMAIN%</hostname>
  38                   <port>993</port>
  39                   <socketType>SSL</socketType>
  40                   <username>%EMAILADDRESS%</username>
  41                   <authentication>password-cleartext</authentication>
  42                 </incomingServer>
  43                 <incomingServer type="pop3">
  44                   <hostname>pop.%EMAILDOMAIN%</hostname>
  45                   <port>995</port>
  46                   <socketType>SSL</socketType>
  47                   <username>%EMAILADDRESS%</username>
  48                   <authentication>password-cleartext</authentication>
  49                   <pop3>
  50                     <leaveMessagesOnServer>false</leaveMessagesOnServer>
  51                     <downloadOnBiff>true</downloadOnBiff>
  52                   </pop3>
  53                 </incomingServer>
  54                 <outgoingServer type="smtp">
  55                   <hostname>smtp.%EMAILDOMAIN%</hostname>
  56                   <port>465</port>
  57                   <socketType>SSL</socketType> <!-- see above -->
  58                   <username>%EMAILADDRESS%</username> <!-- if smtp-auth -->
  59                   <authentication>password-cleartext</authentication>
  60                   <!-- <restriction>client-IP-address</restriction> -->
  61                   <addThisServer>true</addThisServer>
  62                   <useGlobalPreferredServer>false</useGlobalPreferredServer>
  63                 </outgoingServer>
  64               </emailProvider>
  65               <!-- <clientConfigUpdate url="https://www.example.com/config/mozilla.xml" /> -->
  66             </clientConfig>
  67           '';
  68         };
  69     in
  70     pkgs.writeText "autoconfig.conf" ''
  71       server {
  72         listen 80;
  73         server_name ${servers};
  74         root ${autoconfigSite};
  75         access_log off;
  76         log_not_found off;
  77       }
  78       server {
  79         listen 443 ssl http2;
  80         ssl on;
  81         server_name ${servers};
  82         root ${autoconfigSite};
  83         access_log off;
  84         log_not_found off;
  85       }
  86     '';
  87   #services.postfix.mapFiles."transport-dovecot" =
  88   #  toFile "transport-dovecot"
  89   #   (unlines
  90   #     (lib.mapAttrsToList
  91   #       (dom: {...}: "${transportSubDomain}.${dom} lmtp:unix:private/dovecot-lmtp")
  92   #       dovecot2.domains));
  93   systemd.services.dovecot2.after = [ "postfix.service" ];
  94   #users.extraUsers = [
  95   #  { name        = "dovecot";
  96   #    uid         = config.ids.uids.dovecot2;
  97   #    description = "Dovecot user";
  98   #    group       = dovecot2.group;
  99   #  }
 100   #];
 101   users.extraGroups = lib.mapAttrs
 102                        (domain: {...}:
 103                         { name = escapeGroup "${dovecot2.mailGroup}-${domain}";
 104                         })
 105                        dovecot2.domains;
 106   systemd.services.dovecot2.preStart =
 107     let sieveList =
 108           pkgs.writeText "list.sieve" ''
 109           require
 110            [ "date"
 111            , "fileinto"
 112            , "mailbox"
 113            , "variables"
 114            ];
 115
 116           if currentdate :matches "year"  "*" { set "year"  "''${1}"; }
 117           if currentdate :matches "month" "*" { set "month" "''${1}"; }
 118
 119           if exists "List-ID" {
 120             if header :matches "List-ID" "*<*.*.*.*>*" {
 121               set "list"   "''${2}";
 122               set "domain" "''${4}";
 123             }
 124             elsif header :matches "List-ID" "*<*.*.*>*" {
 125               set "list"   "''${2}";
 126               set "domain" "''${3}";
 127             }
 128             fileinto :create "Listes+''${domain}+''${list}+''${year}+''${month}";
 129             stop;
 130            }
 131           '';
 132         sieveSpam =
 133           pkgs.writeText "spam.sieve" ''
 134           require
 135            [ "imap4flags"
 136            ];
 137
 138           if header :contains "X-Spam-Level" "***" {
 139             addflag "Junk";
 140           }
 141           '';
 142         sieveExtension =
 143           pkgs.writeText "extension.sieve" ''
 144           require
 145            [ "envelope"
 146            , "fileinto"
 147            , "mailbox"
 148            , "subaddress"
 149            , "variables"
 150            ];
 151           if envelope :matches :detail "TO" "*" {
 152             set "extension" "''${1}";
 153           }
 154           if not string :is "''${extension}" "" {
 155             fileinto :create "Plus+''${extension}";
 156             stop;
 157           }
 158           '';
 159         dovecot-virtual =
 160           pkgs.writeText "dovecot-virtual" ''
 161           all
 162           all+*
 163             all
 164           '';
 165     in ''
 166     # SEE: http://wiki2.dovecot.org/SharedMailboxes/Permissions
 167     # The sticky bit is to allow the acl.db{.lock,} done by dovecot
 168     install -D -d -m 2771 \
 169      -o ${dovecot2.mailUser} \
 170      -g ${dovecot2.mailGroup} \
 171      ${mailDir}
 172
 173     # Install global sieves
 174     install -D -d -m 0755 \
 175      -o root \
 176      -g root \
 177      ${sieveDir} \
 178      ${sieveDir}/after.d \
 179      ${sieveDir}/before.d \
 180      ${sieveDir}/global.d
 181     ln -fns ${sieveList}      ${sieveDir}/global.d/list.sieve
 182     ln -fns ${sieveExtension} ${sieveDir}/global.d/extension.sieve
 183     ln -fns ${sieveSpam}      ${sieveDir}/global.d/spam.sieve
 184     for f in ${sieveDir}/*/*.sieve
 185      do ${pkgs.dovecot_pigeonhole}/bin/sievec $f
 186      done
 187
 188     # Install pop3 Inbox
 189     install -D -m 0644 \
 190      -o root \
 191      -g root \
 192      ${dovecot-virtual} \
 193      ${libDir}/pop3/INBOX/dovecot-virtual
 194     ''
 195     + ''
 196     # Install domains
 197     new_uid=5000
 198     ''
 199     + unlines (lib.mapAttrsToList (domain: {accounts, ...}:
 200       let domainGroup = escapeGroup "${dovecot2.mailGroup}-${domain}"; in
 201       ''
 202       install -D -d -m 1770 \
 203        -o ${dovecot2.mailUser} \
 204        -g ${domainGroup} \
 205        ${mailDir}/${domain} \
 206        ${libDir}/control/${domain} \
 207        ${libDir}/index/${domain}
 208       install -D -d -m 1770 \
 209        -o ${dovecot2.mailUser} \
 210        -g ${authGroup} \
 211        ${libDir}/auth \
 212        ${libDir}/auth/${domain}
 213       dir_passwd=${libDir}/auth/${domain}
 214       old_passwd=$dir_passwd/passwd
 215       new_passwd=$(TMPDIR= mktemp --tmpdir=$dir_passwd -t passwd.XXXXXXXX.tmp)
 216
 217       # Install users
 218       ''
 219       + unlines (lib.mapAttrsToList (user: acct: ''
 220         home=${mailDir}/${domain}/${user}
 221         gecos=
 222         shell=/run/current-system/sw/bin/nologin
 223         if test -e $home
 224          then
 225           uid=$(stat -c %u $home)
 226           gid=$(stat -c %g $home)
 227          fi
 228         [ "''${uid:+set}" ] || {
 229           while test exists = "$(find $(dirname $home) -mindepth 1 -maxdepth 1 -uid $new_uid -printf exists -quit)"
 230            do new_uid=$((new_uid + 1))
 231            done
 232           uid=$new_uid
 233           gid=$new_uid
 234         }
 235         install -D -d -o $uid -g $gid -m 2770 $home $home/Maildir
 236         install    -d -o $uid -g $gid -m 0700 $home/sieve
 237         ''
 238         + unlines (lib.mapAttrsToList
 239             (n: v: ''
 240               install -D -m 640 -o $uid -g $gid \
 241                ${pkgs.writeText "${n}.sieve" v} \
 242                $home/sieve/${n}.sieve
 243               ${pkgs.dovecot_pigeonhole}/bin/sievec \
 244                $home/sieve/${n}.sieve
 245             '')
 246             acct.sieves)
 247         + ''
 248         mail_access_groups=${lib.concatStringsSep "," ([domainGroup] ++ acct.groups)}
 249         quota=${if lib.isString acct.quota
 250                 then ''"userdb_quota_rule=*:storage=${acct.quota}"''
 251                 else ""}
 252         extra_fields="userdb_uid=$uid userdb_gid=$gid userdb_mail_access_groups=$mail_access_groups $quota"
 253         #test ! -e $old_passwd || {
 254         #  # Preserve password changed by another mechanism, eg. roundcube.
 255         #  # But this also does not overwrite any old password set by this config.
 256         #  pass="$(sed -ne "s/^${user}:\([^:]*\):.*/\1/p" $old_passwd)"
 257         #}
 258         [ "''${pass:+set}" ] || {
 259           pass=${lib.escapeShellArg acct.password}
 260         }
 261         printf '%s\n' >>$new_passwd \
 262          "${user}:$pass:$uid:$gid:$gecos:$home:$shell:$extra_fields"
 263       '') accounts)
 264       + ''
 265       install -o ${authUser} -g ${authGroup} -m 0640 $new_passwd $old_passwd
 266       rm $new_passwd
 267       ''
 268     ) dovecot2.domains);
 269   services.dovecot2 = {
 270     enable    = true;
 271     mailUser  = "dovemail";
 272     mailGroup = "dovemail";
 273     modules   = [
 274       #pkgs.dovecot_antispam
 275       pkgs.dovecot_pigeonhole
 276     ];
 277     # ${lib.concatMapStringsSep "\n"
 278     #     (dom: ''
 279     #       local_name imap.${dom} {
 280     #         #ssl_ca   = <''${caPath}
 281     #         ssl_cert = <${x509.cert dom}
 282     #         ssl_key  = <${x509.key dom}
 283     #         }
 284     #       local_name pop.${dom} {
 285     #         #ssl_ca   = <''${caPath}
 286     #         ssl_cert = <${x509.cert dom}
 287     #         ssl_key  = <${x509.key dom}
 288     #         }
 289     #     '')
 290     #     dovecot2.domains
 291     # }
 292
 293     configFile = toString (pkgs.writeText "dovecot.conf" ''
 294       passdb {
 295         driver = passwd-file
 296         args   = scheme=crypt username_format=%n ${authDir}/%d/passwd
 297         }
 298       userdb {
 299         driver = prefetch
 300         }
 301       userdb {
 302         # NOTE: this userdb is only used by lda.
 303         driver = passwd-file
 304         args = username_format=%n ${authDir}/%d/passwd
 305         #default_fields = home=${mailDir}/%d/%n
 306         }
 307       mail_home = ${mailDir}/%d/%n
 308       auth_mechanisms = plain login
 309       # postfix does not supply a client cert.
 310       auth_ssl_require_client_cert = no
 311       auth_ssl_username_from_cert = yes
 312       auth_verbose = yes
 313       ${lib.optionalString dovecot2.debug ''
 314         auth_debug  = yes
 315         mail_debug  = yes
 316         verbose_ssl = yes
 317       ''}
 318       default_internal_user = ${dovecot2.user}
 319       default_internal_group = ${dovecot2.group}
 320       disable_plaintext_auth = yes
 321       first_valid_uid = 1000
 322       lda_mailbox_autocreate = yes
 323       lda_mailbox_autosubscribe = yes
 324       listen = *
 325       log_timestamp = "%Y-%m-%d %H:%M:%S "
 326       # NOTE: INDEX and CONTROL are on a partition without quota, as explain in the doc.
 327       # SEE: http://wiki2.dovecot.org/Quota/FS
 328       mail_location = maildir:${mailDir}/%d/%n/Maildir:LAYOUT=fs:INDEX=${libDir}/index/%d/%n:CONTROL=${libDir}/control/%d/%n
 329       namespace inbox {
 330         # NOTE: here because protocol sieve {namespace inbox{}} does not seem to work.
 331         inbox     = yes
 332         location  =
 333         list      = yes
 334         prefix    =
 335         separator = ${dirSep}
 336         }
 337       namespace {
 338         #list          = children
 339         list          = yes
 340         location      = maildir:${mailDir}/%%d/%%n/Maildir:LAYOUT=fs:INDEX=${libDir}/index/%d/%n/Shared/%%n:CONTROL=${libDir}/control/%d/%n/Shared/%%n
 341         prefix        = Partages+%%n+
 342         separator     = ${dirSep}
 343         subscriptions = yes
 344         type          = shared
 345         }
 346       mail_plugins = $mail_plugins acl quota virtual
 347       #mail_uid = ${dovecot2.mailUser}
 348       #mail_gid = ${dovecot2.mailGroup}
 349       #mail_privileged_group = mail
 350       #mail_access_groups =
 351       plugin {
 352         acl = vfile:/etc/dovecot/acl/global.d
 353         acl_anyone = allow
 354         acl_shared_dict = file:${mailDir}/%d/acl.db
 355         ##antispam_allow_append_to_spam = yes
 356         # # NOTE: pour offlineimap
 357         #antispam_backend = pipe
 358         ##antispam_crm_args = -u;${mailDir}/%d/.crm114;/usr/share/crm114/mailfilter.crm
 359         #antispam_crm_args = -u;${mailDir}/crm114;/usr/share/crm114/mailfilter.crm
 360         #antispam_crm_binary = /usr/bin/crm
 361         #antispam_debug_target = syslog
 362         ##antispam_crm_env = HOME=%h;USER=%u
 363         #antispam_ham_keywords = NonJunk
 364         #antispam_pipe_program = /usr/bin/crm
 365         #antispam_pipe_program_args = -u;${mailDir}/crm114;/usr/share/crm114/mailfilter.crm;--stats_only;--force
 366         #antispam_pipe_program_notspam_arg = --learnnonspam
 367         #antispam_pipe_program_spam_arg = --learnspam
 368         #antispam_pipe_program_unlearn_spam_args = --unlearn;--learnspam
 369         #antispam_pipe_program_unlearn_notspam_args = --unlearn;--learnnonspam
 370         #antispam_pipe_tmpdir = ${mailDir}/crm114/tmp
 371         #antispam_signature = X-CRM114-CacheID
 372         #antispam_signature_missing = move
 373         #antispam_spam = Junk
 374         #antispam_spam_keywords = Junk
 375         #antispam_trash = Trash
 376         #antispam_unsure = Unsure
 377         #antispam_verbose_debug = 0
 378         quota = maildir:User quota
 379         quota_rule = *:storage=256M
 380         quota_rule2 = Trash:storage=+64M
 381         recipient_delimiter = ${extSep}
 382         sieve = file:${mailDir}/%d/%n/sieve;active=${mailDir}/%d/%n/sieve/main.sieve
 383         #sieve_default = file:${mailDir}/%u/default.sieve
 384         #sieve_default_name = default
 385         sieve_after  = ${sieveDir}/after.d/
 386         sieve_before = ${sieveDir}/before.d/
 387         sieve_dir = ${mailDir}/%d/%n/sieve/
 388         #sieve_extensions = +spamtest +spamtestplus
 389         sieve_global_dir = ${sieveDir}/global.d/
 390         sieve_max_script_size = 1M
 391         sieve_quota_max_scripts = 0
 392         sieve_quota_max_storage = 10M
 393         sieve_spamtest_max_value = 10
 394         sieve_spamtest_status_header = X-Spam-Score
 395         sieve_spamtest_status_type = strlen
 396         sieve_user_log = /var/log/dovecot/%d/sieve.%n.log
 397         }
 398       protocol imap {
 399         #mail_max_userip_connections = 10
 400         mail_plugins = $mail_plugins imap_acl imap_quota # antispam
 401         namespace inbox {
 402           inbox = yes
 403           location =
 404           list = yes
 405           mailbox Drafts {
 406             special_use = \Drafts
 407             }
 408           mailbox Junk {
 409             special_use = \Junk
 410             }
 411           mailbox Sent {
 412             special_use = \Sent
 413             }
 414           mailbox "Sent Messages" {
 415             special_use = \Sent
 416             }
 417           mailbox Trash {
 418             special_use = \Trash
 419             }
 420           prefix =
 421           separator = ${dirSep}
 422           }
 423         }
 424       protocol lda {
 425         auth_socket_path = /var/run/dovecot/auth-userdb
 426         hostname         = ${config.networking.domain}
 427         info_log_path    =
 428         log_path         =
 429         mail_plugins     = $mail_plugins sieve
 430         namespace inbox {
 431           inbox     = yes
 432           location  =
 433           list      = yes
 434           prefix    =
 435           separator = ${dirSep}
 436           }
 437         postmaster_address = postmaster${extSep}dovecot${extSep}lda@${config.networking.domain}
 438         syslog_facility = mail
 439         }
 440       protocol lmtp {
 441         #info_log_path = /tmp/dovecot-lmtp.log
 442         mail_plugins = $mail_plugins sieve
 443         namespace inbox {
 444           inbox     = yes
 445           location  =
 446           list      = yes
 447           prefix    =
 448           separator = ${dirSep}
 449           }
 450         postmaster_address = postmaster${extSep}dovecot${extSep}lmtp@${config.networking.domain}
 451         }
 452       protocol pop3 {
 453         #mail_max_userip_connections = 10
 454         # Used by ${libDir}/pop3/INBOX/dovecot-virtual
 455         namespace all {
 456           hidden    = yes
 457           list      = no
 458           location  =
 459           prefix    = all+
 460           separator = ${dirSep}
 461           }
 462         # Virtual namespace for the virtual INBOX.
 463         # Use a global directory for dovecot-virtual files.
 464         namespace inbox {
 465           inbox     = yes
 466           hidden    = yes
 467           list      = no
 468           location  = virtual:${libDir}/pop3:INDEX=${libDir}/index/%d/%n/POP3:LAYOUT=fs
 469           prefix    = pop3+
 470           separator = ${dirSep}
 471           }
 472         pop3_client_workarounds =
 473         pop3_fast_size_lookups = yes
 474         pop3_lock_session = yes
 475         pop3_no_flag_updates = yes
 476         # Use GUIDs to avoid accidental POP3 UIDL changes instead of IMAP UIDs.
 477         pop3_uidl_format = %g
 478         }
 479       protocol sieve {
 480         #mail_max_userip_connections = 10
 481         #managesieve_implementation_string = Dovecot Pigeonhole
 482         managesieve_max_compile_errors = 5
 483         #managesieve_max_line_length = 65536
 484         #managesieve_notify_capability = mailto
 485         #managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave
 486         }
 487       protocols = imap lmtp pop3 sieve
 488       service lmtp {
 489         #executable = lmtp -L
 490         process_min_avail = 2
 491         unix_listener /var/lib/postfix/queue/private/dovecot-lmtp {
 492           user  = ${postfix.user}
 493           group = ${postfix.group}
 494           mode  = 0600
 495           }
 496         #user = mail
 497         }
 498       service auth {
 499         user = root
 500         unix_listener auth-userdb {
 501           user  = ${dovecot2.user}
 502           group = ${dovecot2.group}
 503           mode  = 0660
 504           }
 505         unix_listener /var/lib/postfix/queue/private/auth {
 506           user  = ${postfix.user}
 507           group = ${postfix.group}
 508           mode  = 0660
 509           }
 510         }
 511       service imap {
 512         # Most of the memory goes to mmap()ing files.
 513         # You may need to increase this limit if you have huge mailboxes.
 514         #vsz_limit =
 515         process_limit = 1024
 516         }
 517       service imap-login {
 518         #inet_listener imap {
 519         #  address = 127.0.0.1
 520         #  port    = 143
 521         #  ssl     = no
 522         #  }
 523         inet_listener imaps {
 524           port = 993
 525           ssl  = yes
 526           }
 527         }
 528       service pop3 {
 529         process_limit = 1024
 530         }
 531       service pop3-login {
 532         inet_listener pop3s {
 533           port = 995
 534           ssl  = yes
 535           }
 536         }
 537       ssl = required
 538       #ssl_ca   = <''${caPath}
 539       ssl_cert = <${x509.cert}
 540       # Only with dovecot >= 2.3
 541       #ssl_dh   = <${x509.dir}/dh.pem
 542       ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
 543       ssl_key = <${x509.key}
 544       #ssl_verify_client_cert = yes
 545     '');
 546   };
 547 };
 548 }