modules/private/tasks/default.nix

   1 { lib, pkgs, config,  ... }:
   2 let
   3   cfg = config.myServices.tasks;
   4   server_vardir = config.services.taskserver.dataDir;
   5   fqdn = "task.immae.eu";
   6   user = config.services.taskserver.user;
   7   env = config.myEnv.tools.task;
   8   group = config.services.taskserver.group;
   9   taskserver-user-certs = pkgs.runCommand "taskserver-user-certs" {} ''
  10     mkdir -p $out/bin
  11     cat > $out/bin/taskserver-user-certs <<"EOF"
  12     #!/usr/bin/env bash
  13
  14     user=$1
  15
  16     silent_certtool() {
  17       if ! output="$("${pkgs.gnutls.bin}/bin/certtool" "$@" 2>&1)"; then
  18         echo "GNUTLS certtool invocation failed with output:" >&2
  19         echo "$output" >&2
  20       fi
  21     }
  22
  23     silent_certtool -p \
  24       --bits 4096 \
  25       --outfile "${server_vardir}/userkeys/$user.key.pem"
  26     ${pkgs.gnused}/bin/sed -i -n -e '/^-----BEGIN RSA PRIVATE KEY-----$/,$p' "${server_vardir}/userkeys/$user.key.pem"
  27
  28     silent_certtool -c \
  29       --template "${pkgs.writeText "taskserver-ca.template" ''
  30         tls_www_client
  31         encryption_key
  32         signing_key
  33         expiration_days = 3650
  34       ''}" \
  35       --load-ca-certificate "${server_vardir}/keys/ca.cert" \
  36       --load-ca-privkey "${server_vardir}/keys/ca.key" \
  37       --load-privkey "${server_vardir}/userkeys/$user.key.pem" \
  38       --outfile "${server_vardir}/userkeys/$user.cert.pem"
  39     EOF
  40     chmod a+x $out/bin/taskserver-user-certs
  41     patchShebangs $out/bin/taskserver-user-certs
  42     '';
  43   taskwarrior-web = pkgs.webapps.taskwarrior-web;
  44   socketsDir = "/run/taskwarrior-web";
  45   varDir = "/var/lib/taskwarrior-web";
  46   taskwebPages = let
  47     uidPages = lib.attrsets.zipAttrs (
  48       lib.lists.flatten
  49         (lib.attrsets.mapAttrsToList (k: c: map (v: { "${v}" = k; }) c.uid) env.taskwarrior-web)
  50       );
  51     pages = lib.attrsets.mapAttrs (uid: items:
  52       if lib.lists.length items == 1 then
  53       ''
  54         <html>
  55         <head>
  56           <meta http-equiv="refresh" content="0; url=/taskweb/${lib.lists.head items}/" />
  57         </head>
  58         <body></body>
  59         </html>
  60         ''
  61       else
  62       ''
  63         <html>
  64         <head>
  65         <title>To-do list disponibles</title>
  66         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  67         <meta name="viewport" content="width=device-width, initial-scale=1" />
  68         </head>
  69         <body>
  70           <ul>
  71             ${builtins.concatStringsSep "\n" (map (item: "<li><a href='/taskweb/${item}'>${item}</a></li>") items)}
  72           </ul>
  73         </body>
  74         </html>
  75         ''
  76     ) uidPages;
  77   in
  78     pkgs.runCommand "taskwerver-pages" {} ''
  79       mkdir -p $out/
  80       ${builtins.concatStringsSep "\n" (lib.attrsets.mapAttrsToList (k: v: "cp ${pkgs.writeText k v} $out/${k}.html") pages)}
  81       echo "Please login" > $out/index.html
  82       '';
  83 in {
  84   options.myServices.tasks = {
  85     enable = lib.mkEnableOption "my tasks service";
  86   };
  87
  88   config = lib.mkIf cfg.enable {
  89     services.duplyBackup.profiles.tasks = {
  90       rootDir = "/var/lib";
  91       excludeFile = ''
  92         + /var/lib/taskserver
  93         + /var/lib/taskwarrior-web
  94         - /var/lib
  95         '';
  96     };
  97
  98     secrets.keys = [{
  99       dest = "webapps/tools-taskwarrior-web";
 100       user = "wwwrun";
 101       group = "wwwrun";
 102       permissions = "0400";
 103       text = ''
 104           SetEnv TASKD_HOST          "${fqdn}:${toString config.services.taskserver.listenPort}"
 105           SetEnv TASKD_VARDIR        "${server_vardir}"
 106           SetEnv TASKD_LDAP_HOST     "ldaps://${env.ldap.host}"
 107           SetEnv TASKD_LDAP_DN       "${env.ldap.dn}"
 108           SetEnv TASKD_LDAP_PASSWORD "${env.ldap.password}"
 109           SetEnv TASKD_LDAP_BASE     "${env.ldap.base}"
 110           SetEnv TASKD_LDAP_FILTER   "${env.ldap.filter}"
 111         '';
 112     }];
 113     services.websites.env.tools.watchPaths = [ "/var/secrets/webapps/tools-taskwarrior-web" ];
 114     services.websites.env.tools.modules = [ "proxy_fcgi" "sed" ];
 115     services.websites.env.tools.vhostConfs.task = {
 116       certName    = "eldiron";
 117       addToCerts  = true;
 118       hosts       = [ "task.immae.eu" ];
 119       root        = "/run/current-system/webapps/_task";
 120       extraConfig = [ ''
 121         <Directory /run/current-system/webapps/_task>
 122           DirectoryIndex index.php
 123           Use LDAPConnect
 124           Require ldap-group cn=users,cn=taskwarrior,ou=services,dc=immae,dc=eu
 125           <FilesMatch "\.php$">
 126             SetHandler "proxy:unix:/var/run/phpfpm/task.sock|fcgi://localhost"
 127           </FilesMatch>
 128           Include /var/secrets/webapps/tools-taskwarrior-web
 129         </Directory>
 130         ''
 131         ''
 132         <Macro Taskwarrior %{folderName}>
 133           ProxyPass        "unix://${socketsDir}/%{folderName}.sock|http://localhost-%{folderName}/"
 134           ProxyPassReverse "unix://${socketsDir}/%{folderName}.sock|http://localhost-%{folderName}/"
 135           ProxyPassReverse http://${fqdn}/
 136
 137           SetOutputFilter Sed
 138           OutputSed   "s|/ajax|/taskweb/%{folderName}/ajax|g"
 139           OutputSed   "s|\([^x]\)/tasks|\1/taskweb/%{folderName}/tasks|g"
 140           OutputSed   "s|\([^x]\)/projects|\1/taskweb/%{folderName}/projects|g"
 141           OutputSed   "s|http://${fqdn}/|/taskweb/%{folderName}/|g"
 142           OutputSed   "s|/img/relax.jpg|/taskweb/%{folderName}/img/relax.jpg|g"
 143         </Macro>
 144         ''
 145         ''
 146         Alias /taskweb ${taskwebPages}
 147         <Directory "${taskwebPages}">
 148           DirectoryIndex index.html
 149           Require all granted
 150         </Directory>
 151
 152         RewriteEngine on
 153         RewriteRule ^/taskweb$ /taskweb/ [R=301,L]
 154         RedirectMatch permanent ^/taskweb/([^/]+)$ /taskweb/$1/
 155
 156         RewriteCond %{LA-U:REMOTE_USER} !=""
 157         RewriteCond ${taskwebPages}/%{LA-U:REMOTE_USER}.html -f
 158         RewriteRule ^/taskweb/?$ ${taskwebPages}/%{LA-U:REMOTE_USER}.html [L]
 159
 160         <Location /taskweb/>
 161           Use LDAPConnect
 162           Require ldap-group cn=users,cn=taskwarrior,ou=services,dc=immae,dc=eu
 163         </Location>
 164         ''
 165       ] ++ (lib.attrsets.mapAttrsToList (k: v: ''
 166         <Location /taskweb/${k}/>
 167           ${builtins.concatStringsSep "\n" (map (uid: "Require ldap-attribute   uid=${uid}") v.uid)}
 168
 169           Use Taskwarrior ${k}
 170         </Location>
 171         '') env.taskwarrior-web);
 172     };
 173     services.phpfpm.pools = {
 174       tasks = {
 175         listen = "/var/run/phpfpm/task.sock";
 176         extraConfig = ''
 177           user = ${user}
 178           group = ${group}
 179           listen.owner = wwwrun
 180           listen.group = wwwrun
 181           pm = dynamic
 182           pm.max_children = 60
 183           pm.start_servers = 2
 184           pm.min_spare_servers = 1
 185           pm.max_spare_servers = 10
 186
 187           ; Needed to avoid clashes in browser cookies (same domain)
 188           env[PATH] = "/etc/profiles/per-user/${user}/bin"
 189           php_value[session.name] = TaskPHPSESSID
 190           php_admin_value[open_basedir] = "${./www}:/tmp:${server_vardir}:/etc/profiles/per-user/${user}/bin/"
 191         '';
 192       };
 193     };
 194
 195     myServices.websites.webappDirs._task = ./www;
 196
 197     security.acme2.certs."task" = config.myServices.certificates.certConfig // {
 198       inherit user group;
 199       plugins = [ "fullchain.pem" "key.pem" "cert.pem" "account_key.json" "account_reg.json" ];
 200       domain = fqdn;
 201       postRun = ''
 202         systemctl restart taskserver.service
 203       '';
 204     };
 205
 206     users.users.${user}.packages = [ taskserver-user-certs ];
 207
 208     system.activationScripts.taskserver = {
 209       deps = [ "users" ];
 210       text = ''
 211         install -m 0750 -o ${user} -g ${group} -d ${server_vardir}
 212         install -m 0750 -o ${user} -g ${group} -d ${server_vardir}/userkeys
 213         install -m 0750 -o ${user} -g ${group} -d ${server_vardir}/keys
 214
 215         if [ ! -e "${server_vardir}/keys/ca.key" ]; then
 216           silent_certtool() {
 217             if ! output="$("${pkgs.gnutls.bin}/bin/certtool" "$@" 2>&1)"; then
 218               echo "GNUTLS certtool invocation failed with output:" >&2
 219               echo "$output" >&2
 220             fi
 221           }
 222
 223           silent_certtool -p \
 224             --bits 4096 \
 225             --outfile "${server_vardir}/keys/ca.key"
 226
 227           silent_certtool -s \
 228             --template "${pkgs.writeText "taskserver-ca.template" ''
 229               cn = ${fqdn}
 230               expiration_days = -1
 231               cert_signing_key
 232               ca
 233             ''}" \
 234             --load-privkey "${server_vardir}/keys/ca.key" \
 235             --outfile "${server_vardir}/keys/ca.cert"
 236
 237           chown :${group} "${server_vardir}/keys/ca.key"
 238           chmod g+r "${server_vardir}/keys/ca.key"
 239         fi
 240       '';
 241     };
 242
 243     services.taskserver = {
 244       enable = true;
 245       allowedClientIDs = [ "^task [2-9]" "^Mirakel [1-9]" ];
 246       inherit fqdn;
 247       listenHost = "::";
 248       pki.manual.ca.cert = "${server_vardir}/keys/ca.cert";
 249       pki.manual.server.cert = "${config.security.acme2.certs.task.directory}/fullchain.pem";
 250       pki.manual.server.crl = "${config.security.acme2.certs.task.directory}/invalid.crl";
 251       pki.manual.server.key = "${config.security.acme2.certs.task.directory}/key.pem";
 252       requestLimit = 104857600;
 253     };
 254
 255     system.activationScripts.taskwarrior-web = {
 256       deps = [ "users" ];
 257       text = ''
 258         if [ ! -f ${server_vardir}/userkeys/taskwarrior-web.cert.pem ]; then
 259           ${taskserver-user-certs}/bin/taskserver-user-certs taskwarrior-web
 260           chown taskd:taskd ${server_vardir}/userkeys/taskwarrior-web.cert.pem ${server_vardir}/userkeys/taskwarrior-web.key.pem
 261         fi
 262       '';
 263     };
 264
 265     systemd.services = (lib.attrsets.mapAttrs' (name: userConfig:
 266       let
 267         credentials = "${userConfig.org}/${name}/${userConfig.key}";
 268         dateFormat = userConfig.date;
 269         taskrc = pkgs.writeText "taskrc" ''
 270           data.location=${varDir}/${name}
 271           taskd.certificate=${server_vardir}/userkeys/taskwarrior-web.cert.pem
 272           taskd.key=${server_vardir}/userkeys/taskwarrior-web.key.pem
 273           # IdenTrust DST Root CA X3
 274           # obtained here: https://letsencrypt.org/fr/certificates/
 275           taskd.ca=${pkgs.writeText "ca.cert" ''
 276             -----BEGIN CERTIFICATE-----
 277             MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/
 278             MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
 279             DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow
 280             PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
 281             Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB
 282             AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O
 283             rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq
 284             OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b
 285             xiqKqy69cK3FCxolkHRyxXtqqzTWMIn/5WgTe1QLyNau7Fqckh49ZLOMxt+/yUFw
 286             7BZy1SbsOFU5Q9D8/RhcQPGX69Wam40dutolucbY38EVAjqr2m7xPi71XAicPNaD
 287             aeQQmxkqtilX4+U9m5/wAl0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNV
 288             HQ8BAf8EBAMCAQYwHQYDVR0OBBYEFMSnsaR7LHH62+FLkHX/xBVghYkQMA0GCSqG
 289             SIb3DQEBBQUAA4IBAQCjGiybFwBcqR7uKGY3Or+Dxz9LwwmglSBd49lZRNI+DT69
 290             ikugdB/OEIKcdBodfpga3csTS7MgROSR6cz8faXbauX+5v3gTt23ADq1cEmv8uXr
 291             AvHRAosZy5Q6XkjEGB5YGV8eAlrwDPGxrancWYaLbumR9YbK+rlmM6pZW87ipxZz
 292             R8srzJmwN0jP41ZL9c8PDHIyh8bwRLtTcm1D9SZImlJnt1ir/md2cXjbDaJWFBM5
 293             JDGFoqgCWjBH4d1QB7wCCZAA62RjYJsWvIjJEubSfZGL+T0yjWW06XyxV3bqxbYo
 294             Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ
 295             -----END CERTIFICATE-----''}
 296           taskd.server=${fqdn}:${toString config.services.taskserver.listenPort}
 297           taskd.credentials=${credentials}
 298           dateformat=${dateFormat}
 299           '';
 300       in lib.attrsets.nameValuePair "taskwarrior-web-${name}" {
 301         description = "Taskwarrior webapp for ${name}";
 302         wantedBy = [ "multi-user.target" ];
 303         after = [ "network.target" ];
 304         path = [ pkgs.taskwarrior ];
 305
 306         environment.TASKRC = taskrc;
 307         environment.BUNDLE_PATH = "${taskwarrior-web.gems}/${taskwarrior-web.gems.ruby.gemPath}";
 308         environment.BUNDLE_GEMFILE = "${taskwarrior-web.gems.confFiles}/Gemfile";
 309         environment.LC_ALL = "fr_FR.UTF-8";
 310
 311         script = ''
 312           exec ${taskwarrior-web.gems}/${taskwarrior-web.gems.ruby.gemPath}/bin/bundle exec thin start -R config.ru -S ${socketsDir}/${name}.sock
 313         '';
 314
 315         serviceConfig = {
 316           User = user;
 317           PrivateTmp = true;
 318           Restart = "always";
 319           TimeoutSec = 60;
 320           Type = "simple";
 321           WorkingDirectory = taskwarrior-web;
 322           StateDirectoryMode = 0750;
 323           StateDirectory = assert lib.strings.hasPrefix "/var/lib/" varDir;
 324             (lib.strings.removePrefix "/var/lib/" varDir + "/${name}");
 325           RuntimeDirectoryPreserve = "yes";
 326           RuntimeDirectory = assert lib.strings.hasPrefix "/run/" socketsDir;
 327             lib.strings.removePrefix "/run/" socketsDir;
 328         };
 329
 330         unitConfig.RequiresMountsFor = varDir;
 331       }) env.taskwarrior-web) // {
 332         taskserver-ca.postStart = ''
 333           chown :${group} "${server_vardir}/keys/ca.key"
 334           chmod g+r "${server_vardir}/keys/ca.key"
 335         '';
 336       };
 337
 338   };
 339 }