{ stdenv, fetchurl, writeText, env, composerEnv, phpPackages, php, which }:
let
  wallabag = rec {
    varDir = "/var/lib/wallabag";
    parameters = writeText "parameters.yml" ''
      # This file is auto-generated during the composer install
      parameters:
          database_driver: pdo_pgsql
          database_driver_class: Wallabag\CoreBundle\Doctrine\DBAL\Driver\CustomPostgreSQLDriver
          database_host: db-1.immae.eu
          database_port: null
          database_name: webapps
          database_user: wallabag
          database_password: ${env.postgresql.password}
          database_path: null
          database_table_prefix: wallabag_
          database_socket: null
          database_charset: utf8
          domain_name: https://tools.immae.eu/wallabag
          mailer_transport: smtp
          mailer_host: mail.immae.eu
          mailer_user: null
          mailer_password: null
          locale: fr
          secret: ${env.secret}
          twofactor_auth: true
          twofactor_sender: wallabag@immae.eu
          fosuser_registration: false
          fosuser_confirmation: true
          from_email: wallabag@immae.eu
          rss_limit: 50
          rabbitmq_host: localhost
          rabbitmq_port: 5672
          rabbitmq_user: guest
          rabbitmq_password: guest
          rabbitmq_prefetch_count: 10
          redis_scheme: tcp
          redis_host: localhost
          redis_port: 6379
          redis_path: null
          redis_password: null
          sites_credentials: {  }
          ldap_enabled: true
          ldap_host: ldap.immae.eu
          ldap_port: 636
          ldap_tls: false
          ldap_ssl: true
          ldap_bind_requires_dn: true
          ldap_base: 'dc=immae,dc=eu'
          ldap_manager_dn: 'cn=wallabag,ou=services,dc=immae,dc=eu'
          ldap_manager_pw: ${env.ldap.password}
          ldap_filter: '(&(memberOf=cn=users,cn=wallabag,ou=services,dc=immae,dc=eu))'
          ldap_admin_filter: '(&(memberOf=cn=admins,cn=wallabag,ou=services,dc=immae,dc=eu)(uid=%s))'
          ldap_username_attribute: uid
          ldap_email_attribute: mail
          ldap_name_attribute: cn
          ldap_enabled_attribute: null
      '';
    webappDir = composerEnv.buildPackage rec {
      packages = {
        "fr3d/ldap-bundle" = {
          targetDir = "";
          src = composerEnv.buildZipPackage {
            name = "fr3d-ldap-bundle-5a8927c11af45fa06331b97221c6da1a4a237475";
            src = fetchurl {
              url = https://api.github.com/repos/Maks3w/FR3DLdapBundle/zipball/5a8927c11af45fa06331b97221c6da1a4a237475;
              sha256 = "168zkd82j200wd6h0a3lq81g5s2pifg889rv27q2g429nppsbfxc";
            };
          };
        };
        "zendframework/zend-ldap" = {
          targetDir = "";
          src = composerEnv.buildZipPackage {
            name = "zendframework-zend-ldap-b63c7884a08d3a6bda60ebcf7d6238cf8ad89f49";
            src = fetchurl {
              url = https://api.github.com/repos/zendframework/zend-ldap/zipball/b63c7884a08d3a6bda60ebcf7d6238cf8ad89f49;
              sha256 = "0mn4yqnb5prqhrbbybmw1i2rx7xf4s4wagbdq9qi55fa0vk3jgw9";
            };
          };
        };
      };
      noDev = true;
      doRemoveVendor = false;
      # Beware when upgrading, I probably messed up with the migrations table
      # (due to a psql bug in wallabag)
      version = "2.3.6";
      name = "wallabag-${version}";
      src = fetchurl {
        url = "https://static.wallabag.org/releases/wallabag-release-${version}.tar.gz";
        sha256 = "0m0dy3r94ks5pfxyb9vbgrsm0vrwdl3jd5wqwg4f5vd107lq90q1";
      };
      unpackPhase = ''
        unpackFile "$src"
        sourceRoot=${version}
        src=$PWD/${version}
        '';
      patches = [ ./wallabag_ldap.patch ];
      preInstall = ''
        export SYMFONY_ENV="prod"
      '';
      postInstall = ''
        rm -rf web/assets var/{cache,logs,sessions} app/config/parameters.yml data
        ln -sf ${parameters} app/config/parameters.yml
        ln -sf ../../../../../../${varDir}/var/{cache,logs,sessions} var
        ln -sf ../../../../../${varDir}/data data
        ln -sf ../../../../../../${varDir}/assets web/assets
      '';
    };
    activationScript = ''
      install -m 0755 -o ${apache.user} -g ${apache.group} -d ${varDir} \
        ${varDir}/var ${varDir}/data/db ${varDir}/assets/images
      if [ ! -f "${varDir}/currentWebappDir" -o \
          "${webappDir}" != "$(cat ${varDir}/currentWebappDir 2>/dev/null)" ]; then
        pushd ${webappDir} > /dev/null
        $wrapperDir/sudo -u wwwrun ./bin/console --env=prod cache:clear
        $wrapperDir/sudo -u wwwrun ./bin/console --env=prod doctrine:migrations:migrate --no-interaction
        popd > /dev/null
        echo -n "${webappDir}" > ${varDir}/currentWebappDir
      fi
      '';
    webRoot = "${webappDir}/web";
    # Domain migration: Table wallabag_entry contains whole
    # https://tools.immae.eu/wallabag domain name in preview_picture
    apache = {
      user = "wwwrun";
      group = "wwwrun";
      modules = [ "proxy_fcgi" ];
      vhostConf = ''
        Alias /wallabag "${webRoot}"
        <Directory "${webRoot}">
          AllowOverride None
          Require all granted
          # For OAuth (apps)
          CGIPassAuth On

          <FilesMatch "\.php$">
            SetHandler "proxy:unix:${phpFpm.socket}|fcgi://localhost"
          </FilesMatch>

          <IfModule mod_rewrite.c>
            Options -MultiViews
            RewriteEngine On
            RewriteCond %{REQUEST_FILENAME} !-f
            RewriteRule ^(.*)$ app.php [QSA,L]
          </IfModule>
        </Directory>
        <Directory "${webRoot}/bundles">
          <IfModule mod_rewrite.c>
            RewriteEngine Off
          </IfModule>
        </Directory>
        <Directory "${varDir}/assets">
          AllowOverride None
          Require all granted
        </Directory>
        '';
    };
    phpFpm = rec {
      basedir = builtins.concatStringsSep ":" [ webappDir parameters varDir ];
      socket = "/var/run/phpfpm/wallabag.sock";
      pool = ''
        listen = ${socket}
        user = ${apache.user}
        group = ${apache.group}
        listen.owner = ${apache.user}
        listen.group = ${apache.group}
        pm = dynamic
        pm.max_children = 60
        pm.start_servers = 2
        pm.min_spare_servers = 1
        pm.max_spare_servers = 10

        ; Needed to avoid clashes in browser cookies (same domain)
        php_value[session.name] = WallabagPHPSESSID
        php_admin_value[open_basedir] = "${basedir}:/tmp"
        php_value[max_execution_time] = 300
        '';
    };
  };
in
  wallabag