danielgp / sharepoint-extractor

var request = require('request-promise');

var config = require('./config.json');

var targetSharePoint = require('./targetSharePoint.json');

var MyCustomFunctions = require('./custom_functions.js');

var fs = require('fs');

spauth

        .getAuth(targetSharePoint.URL, MyCustomFunctions.buildAuthenticationHeader(targetSharePoint.authentication))

        .then(function (data) {

            var fsOptions = {

                encoding: 'utf8'

            };

            var headerOptions = data.headers;

            headerOptions['Accept'] = 'application/json;odata=verbose';

            var ListNameArray = [];

            request.get(MyCustomFunctions.buildRequestQuery(targetSharePoint.URL, '', 'Lists', headerOptions)).then(function (response) {

                var dataObjectLists = response.d.results;

                if (Object.keys(dataObjectLists).length > 0) {

                    var dataListLight = [];

                    var counter = 0;

                    dataObjectLists.forEach(function (item) {

                        dataListLight[counter] = MyCustomFunctions.buildCurrentListAttributeValues(config.SharePoint.MetaDataOutput.Lists, item);

                        ListNameArray[counter] = item.Title;

                        counter++;

                    });

                    var wStreamList = fs.createWriteStream(config.General.PathForExtracts + config.General.MetaDataFileName.Lists + '.csv', fsOptions); // initiate MetaData for Lists

                    wStreamList.write('"' + Object.keys(dataListLight[0]).join('"' + config.General.ListSeparator + '"') + '"\n'); // headers of MetaData for Lists

                    var wStreamListFields = fs.createWriteStream(config.General.PathForExtracts + config.General.MetaDataFileName.Fields + '.csv', fsOptions); // initiate MetaData for Fields

                    wStreamListFields.write('"List"' + config.General.ListSeparator + '"' + Object.keys(config.SharePoint.MetaDataOutput.Fields).join('"' + config.General.ListSeparator + '"') + '"\n'); // headers of MetaData for Fields

                    dataListLight.forEach(function (crtListParameters) { // parse each List

                        // check current List against configured BlackList and WhiteList besides considering user defined Lists

                        if (MyCustomFunctions.decideBlackListWhiteList(crtListParameters.Hidden, false, config.SharePoint.Filters.Lists.NotHidden.BlackList, true, config.SharePoint.Filters.Lists.Hidden.WhiteList, crtListParameters.Title)) {

                            wStreamList.write('"' + Object.keys(crtListParameters).map(function (x) { // records detail of current List

                                return crtListParameters[x];

                            }).join('"' + config.General.ListSeparator + '"') + '"\n');

                            // Dynamically detect structure of the list, extracting the Field names and their text to display

                            request.get(MyCustomFunctions.buildRequestQuery(targetSharePoint.URL, crtListParameters.Title, 'Fields', headerOptions)).then(function (response) {

                                var dataObject = response.d.results;

                                if (Object.keys(dataObject).length > 0) {

                                    var fieldAttributes = [];

                                    var counter = 0;

                                    dataObject.forEach(function (item) {

                                        var crtRecordFieldWillBeExtracted = MyCustomFunctions.decideBlackListWhiteList(item.CanBeDeleted, true, config.SharePoint.Filters.Fields.CanBeDeleted.BlackList, false, config.SharePoint.Filters.Fields.CannotBeDeleted.WhiteList, item.InternalName); // check current Field against configured BlackList and WhiteList besides considering user defined Fields

                                        if (config.SharePoint.Filters.Lists.Hidden.WhiteList.indexOf(crtListParameters.Title) > -1) {  // for certain Lists all existing fields should be retrieved

                                            crtRecordFieldWillBeExtracted = true;

                                        }

                                        if (crtRecordFieldWillBeExtracted) {

                                            fieldAttributes[item.Title] = {

                                                'Technical Name': item.StaticName,

                                                'Type': item.TypeAsString

                                            };

                                            counter++;

                                            var crtListField = [];

                                            var counterF = 0;

                                            Object.keys(config.SharePoint.MetaDataOutput.Fields).forEach(function (itemF) {

                                                crtListField[counterF] = item[config.SharePoint.MetaDataOutput.Fields[itemF]];

                                                counterF++;

                                            });

                                            wStreamListFields.write('"' + crtListParameters.Title + '"' + config.General.ListSeparator + '"' + crtListField.join('"' + config.General.ListSeparator + '"') + '"\n');

                                        }

                                    });

                                    // Get the actual values from current list

                                    request.get(MyCustomFunctions.buildRequestQuery(targetSharePoint.URL, crtListParameters.Title, 'Items', headerOptions, crtListParameters.Records)).then(function (response) {

                                        var wstream = fs.createWriteStream(config.General.PathForExtracts + crtListParameters.Title + '.csv', fsOptions);

                                        wstream.write('"' + Object.keys(fieldAttributes).join('"' + config.General.ListSeparator + '"') + (crtListParameters['Versioning Enabled'] ? '"' + config.General.ListSeparator + '"Version' : '') + '"\n'); // writing headers for records within current list

                                        var dataObjectValues = response.d.results;

                                        if (Object.keys(dataObjectValues).length > 0) {

                                        wstream.end();

                                    });

                                }

                            });

                        }

                    });

                    wStreamList.end();

                }

            });

        });