dl/examples/uid.js

DreamLab Libs

var JsonRpcMethod = require('core').jsonrpc.JsonRpcMethod,
    Request = require('core').http.Request,
    Response = require('core').http.Response,
    Event = require('core').event.Event,
    BinaryData = require('core').data.BinaryData,
    OnetHeadersFilter = require('dl').utils.OnetHeadersFilter,
    UidManager = require('dl').uid.UidManager;

var QueryMethod = function () {
    JsonRpcMethod.apply(this, arguments);
};

QueryMethod.prototype = Object.create(JsonRpcMethod.prototype);

QueryMethod.prototype.execute = function (params) {
    var request = new Request(params.request),
        response = new Response({
            "headers": {
                "content-type": "application/json; charset=utf-8"
            }
        }),
        manager = new UidManager(request, response).setClientId('www.onet.pl'),
        error = request.getQueryParam('error');
    if (error !== null) {
        this._handleError(request, response, error);
    } else if (request.getQueryParam('code') !== null) {
        this._handleAuth(request, response, manager);
    } else {
        this._handleProfile(request, response, manager);
    }
};

QueryMethod.prototype._handleError = function (request, response, error) {
    switch (error) {
    case 'invalid_request':
    case 'unsupported_response_type':
        response.setStatusCode(400);
        break;
    case 'access_denied':
        response.setStatusCode(401);
        break;
    case 'temporarily_unavailable':
        response.setStatusCode(503);
        break;
    default:
        response.setStatusCode(500);
    }
    this._sendResponse(request, response, error);
};

QueryMethod.prototype._handleAuth = function (request, response, manager) {
    var that = this;
    try {
        manager.oauthExchangeToken(function (err) {
            if (err) {
                response.setStatusCode(err.code == UidManager.Error.INVALID_CODE ? 400 : 503);
                that._sendResponse(request, response, err.toJson());
                return;
            }
            that._handleProfile(request, response, manager);
        });
    } catch (e) {
        response.setStatusCode(400);
        this._sendResponse(request, response, e.toString());
    }
};

QueryMethod.prototype._handleProfile = function (request, response, manager) {
    var that = this;
    try {
        manager.getProfile(request.getUrl(), function (err, data) {
            if (err) {
                if (err.code == UidManager.Error.INVALID_TOKEN) {
                    // automatic redirection to OAuth 2.0 Authorization Endpoint
                    that._sendResponse(request, response);
                    return;
                }
                response.setStatusCode(503);
                that._sendResponse(request, response, err.toJson());
                return;
            }
            response.setStatusCode(200);
            that._sendResponse(request, response, data);
        });
    } catch (e) {
        if (e.message == UidManager.Exception.UNAUTHORIZED) {
            // automatic redirection to OAuth 2.0 Authorization Endpoint
            this._sendResponse(request, response);
            return;
        }
        response.setStatusCode(503);
        this._sendResponse(request, response, e.toString());
    }
};

QueryMethod.prototype._sendResponse = function (request, response, body) {
    if (body) {
        body = new BinaryData(JSON.stringify(body), BinaryData.Encoding.TEXT, BinaryData.CharacterEncoding.UTF8);
        response.setBody(body);
        response.setHeader("content-length", body.length());
    }
    OnetHeadersFilter.filter(request, response);
    this.dispatchEvent(new Event(JsonRpcMethod.Event.OK, response.toJson()));
};

exports.QueryMethod = QueryMethod;