@cocalc/hub/dist/projects.js

CoCalc: Backend webserver component

// Generated by CoffeeScript 2.5.1
(function() {
  //########################################################################
  // This file is part of CoCalc: Copyright © 2020 Sagemath, Inc.
  // License: AGPLv3 s.t. "Commons Clause" – see LICENSE.md for details
  //########################################################################
  /*
  Projects
  */
  var Project, _project_cache, callback2, defaults, local_hub_connection, message, misc, misc_node, postgres, required, winston;

  winston = require('./logger').getLogger('projects');

  postgres = require('@cocalc/database');

  local_hub_connection = require('./local_hub_connection');

  message = require('@cocalc/util/message');

  ({callback2} = require('@cocalc/util/async-utils'));

  misc = require('@cocalc/util/misc');

  misc_node = require('@cocalc/backend/misc_node');

  ({defaults, required} = misc);

  // Create a project object that is connected to a local hub (using
  // appropriate port and secret token), login, and enhance socket
  // with our message protocol.
  _project_cache = {};

  exports.new_project = function(project_id, database, compute_server) {
    var P;
    P = _project_cache[project_id];
    if (P == null) {
      P = new Project(project_id, database, compute_server);
      _project_cache[project_id] = P;
    }
    return P;
  };

  Project = class Project {
    constructor(project_id1, database1, compute_server1) {
      this.dbg = this.dbg.bind(this);
      this._fixpath = this._fixpath.bind(this);
      this.owner = this.owner.bind(this);
      // get latest info about project from database
      this.get_info = this.get_info.bind(this);
      this.call = this.call.bind(this);
      // async function
      this.named_server_port = this.named_server_port.bind(this);
      this.read_file = this.read_file.bind(this);
      this.write_file = this.write_file.bind(this);
      this.project_id = project_id1;
      this.database = database1;
      this.compute_server = compute_server1;
      this.dbg("instantiating Project class");
      this.local_hub = local_hub_connection.new_local_hub(this.project_id, this.database, this.compute_server);
      // we always look this up and cache it
      this.get_info();
    }

    dbg(m) {
      return winston.debug(`project(${this.project_id}): ${m}`);
    }

    _fixpath(obj) {
      if ((obj != null) && (this.local_hub != null)) {
        if (obj.path != null) {
          if (obj.path[0] !== '/') {
            return obj.path = this.local_hub.path + '/' + obj.path;
          }
        } else {
          return obj.path = this.local_hub.path;
        }
      }
    }

    owner(cb) {
      if (this.database == null) {
        cb('need database in order to determine owner');
        return;
      }
      return this.database.get_project({
        project_id: this.project_id,
        columns: ['account_id'],
        cb: (err, result) => {
          if (err) {
            return cb(err);
          } else {
            return cb(err, result[0]);
          }
        }
      });
    }

    get_info(cb) {
      if (this.database == null) {
        cb('need database in order to determine owner');
        return;
      }
      return this.database.get_project({
        project_id: this.project_id,
        columns: postgres.PROJECT_COLUMNS,
        cb: (err, result) => {
          if (err) {
            return typeof cb === "function" ? cb(err) : void 0;
          } else {
            this.cached_info = result;
            return typeof cb === "function" ? cb(void 0, result) : void 0;
          }
        }
      });
    }

    call(opts) {
      opts = defaults(opts, {
        mesg: required,
        multi_response: false,
        timeout: 15,
        cb: void 0
      });
      //@dbg("call")
      this._fixpath(opts.mesg);
      opts.mesg.project_id = this.project_id;
      return this.local_hub.call(opts);
    }

    async named_server_port(name) {
      var resp;
      this.dbg("named_server_port(name=${name})");
      resp = (await callback2(this.call, {
        mesg: message.named_server_port({
          name: name
        }),
        timeout: 30
      }));
      this.dbg(`named_server_port ${resp.port}`);
      return resp.port;
    }

    read_file(opts) {
      this.dbg("read_file");
      this._fixpath(opts);
      opts.project_id = this.project_id;
      return this.local_hub.read_file(opts);
    }

    write_file(opts) {
      this.dbg("write_file");
      this._fixpath(opts);
      opts.project_id = this.project_id;
      return this.local_hub.write_file(opts);
    }

  };

}).call(this);

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