mirror of https://github.com/moparisthebest/mail
125 lines
2.9 KiB
JavaScript
125 lines
2.9 KiB
JavaScript
'use strict';
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var ngModule = angular.module('woServices');
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ngModule.factory('restDao', function() {
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return new RestDAO();
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});
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module.exports = RestDAO;
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var config = require('../app-config').config;
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function RestDAO(baseUri) {
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if (baseUri) {
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this._baseUri = baseUri;
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} else {
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this._baseUri = config.cloudUrl;
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}
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}
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/**
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* GET (read) request
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* @param {String} options.uri URI relative to the base uri to perform the GET request with.
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* @param {String} options.type (optional) The type of data that you're expecting back from the server: json, xml, text. Default: json.
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*/
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RestDAO.prototype.get = function(options, callback) {
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options.method = 'GET';
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this._processRequest(options, callback);
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};
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/**
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* POST (create) request
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*/
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RestDAO.prototype.post = function(item, uri, callback) {
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this._processRequest({
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method: 'POST',
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payload: item,
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uri: uri
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}, callback);
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};
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/**
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* PUT (update) request
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*/
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RestDAO.prototype.put = function(item, uri, callback) {
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this._processRequest({
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method: 'PUT',
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payload: item,
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uri: uri
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}, callback);
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};
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/**
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* DELETE (remove) request
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*/
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RestDAO.prototype.remove = function(uri, callback) {
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this._processRequest({
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method: 'DELETE',
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uri: uri
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}, callback);
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};
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//
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// helper functions
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//
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RestDAO.prototype._processRequest = function(options, callback) {
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var xhr, format;
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if (typeof options.uri === 'undefined') {
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callback({
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code: 400,
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errMsg: 'Bad Request! URI is a mandatory parameter.'
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});
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return;
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}
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options.type = options.type || 'json';
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if (options.type === 'json') {
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format = 'application/json';
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} else if (options.type === 'xml') {
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format = 'application/xml';
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} else if (options.type === 'text') {
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format = 'text/plain';
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} else {
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callback({
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code: 400,
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errMsg: 'Bad Request! Unhandled data type.'
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});
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return;
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}
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xhr = new XMLHttpRequest();
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xhr.open(options.method, this._baseUri + options.uri);
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xhr.setRequestHeader('Accept', format);
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xhr.setRequestHeader('Content-Type', format);
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xhr.onload = function() {
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var res;
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if (xhr.readyState === 4 && (xhr.status === 200 || xhr.status === 201 || xhr.status === 304)) {
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if (options.type === 'json') {
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res = xhr.responseText ? JSON.parse(xhr.responseText) : xhr.responseText;
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} else {
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res = xhr.responseText;
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}
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callback(null, res, xhr.status);
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return;
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}
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callback({
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code: xhr.status,
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errMsg: xhr.statusText
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});
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};
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xhr.onerror = function() {
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callback({
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code: 42,
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errMsg: 'Error calling ' + options.method + ' on ' + options.uri
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});
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};
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xhr.send(options.payload ? JSON.stringify(options.payload) : undefined);
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}; |