Files
document-server-integration/web/documentserver-example/nodejs/app.js
2021-04-26 11:47:03 +03:00

825 lines
37 KiB
JavaScript

"use strict";
/**
*
* (c) Copyright Ascensio System SIA 2021
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// connect the necessary packages and modules
const express = require("express");
const path = require("path");
const favicon = require("serve-favicon");
const bodyParser = require("body-parser");
const fileSystem = require("fs");
const formidable = require("formidable");
const syncRequest = require("sync-request");
const jwt = require('jsonwebtoken');
const config = require('config');
const configServer = config.get('server');
const storageFolder = configServer.get("storageFolder");
const mime = require("mime");
const docManager = require("./helpers/docManager");
const documentService = require("./helpers/documentService");
const fileUtility = require("./helpers/fileUtility");
const users = require("./helpers/users");
const siteUrl = configServer.get('siteUrl');
const fileChoiceUrl = configServer.has('fileChoiceUrl') ? configServer.get('fileChoiceUrl') : "";
const plugins = config.get('plugins');
const cfgSignatureEnable = configServer.get('token.enable');
const cfgSignatureUseForRequest = configServer.get('token.useforrequest');
const cfgSignatureAuthorizationHeader = configServer.get('token.authorizationHeader');
const cfgSignatureAuthorizationHeaderPrefix = configServer.get('token.authorizationHeaderPrefix');
const cfgSignatureSecretExpiresIn = configServer.get('token.expiresIn');
const cfgSignatureSecret = configServer.get('token.secret');
process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
String.prototype.hashCode = function () {
const len = this.length;
let ret = 0;
for (let i = 0; i < len; i++) {
ret = (31 * ret + this.charCodeAt(i)) << 0;
}
return ret;
};
String.prototype.format = function () {
let text = this.toString();
if (!arguments.length) return text;
for (let i = 0; i < arguments.length; i++) {
text = text.replace(new RegExp("\\{" + i + "\\}", "gi"), arguments[i]);
}
return text;
};
const app = express(); // create an application object
app.set("views", path.join(__dirname, "views")); // specify the path to the main template
app.set("view engine", "ejs"); // specify which template engine is used
app.use(function (req, res, next) {
res.setHeader('Access-Control-Allow-Origin', '*'); // allow any Internet domain to access the resources of this site
next();
});
app.use(express.static(path.join(__dirname, "public"))); // public directory
if (config.has('server.static')) { // check if there are static files such as .js, .css files, images, samples and process them
const staticContent = config.get('server.static');
for (let i = 0; i < staticContent.length; ++i) {
const staticContentElem = staticContent[i];
app.use(staticContentElem['name'], express.static(staticContentElem['path'], staticContentElem['options']));
}
}
app.use(favicon(__dirname + "/public/images/favicon.ico")); // use favicon
app.use(bodyParser.json()); // connect middleware that parses json
app.use(bodyParser.urlencoded({ extended: false })); // connect middleware that parses urlencoded bodies
app.get("/", function (req, res) { // define a handler for default page
try {
docManager.init(storageFolder, req, res);
res.render("index", { // render index template with the parameters specified
preloaderUrl: siteUrl + configServer.get('preloaderUrl'),
convertExts: configServer.get('convertedDocs').join(","),
editedExts: configServer.get('editedDocs').join(","),
storedFiles: docManager.getStoredFiles(),
params: docManager.getCustomParams(),
users: users,
});
}
catch (ex) {
console.log(ex); // display error message in the console
res.status(500); // write status parameter to the response
res.render("error", { message: "Server error" }); // render error template with the message parameter specified
return;
}
});
app.get("/download", function(req, res) { // define a handler for downloading files
docManager.init(storageFolder, req, res);
var fileName = fileUtility.getFileName(req.query.fileName);
var userAddress = req.query.useraddress;
if (cfgSignatureEnable && cfgSignatureUseForRequest) {
var authorization = req.get(cfgSignatureAuthorizationHeader);
if (authorization && authorization.startsWith(cfgSignatureAuthorizationHeaderPrefix)) {
var token = authorization.substring(cfgSignatureAuthorizationHeaderPrefix.length);
try {
var decoded = jwt.verify(token, cfgSignatureSecret);
} catch (err) {
console.log('checkJwtHeader error: name = ' + err.name + ' message = ' + err.message + ' token = ' + token)
res.sendStatus(403);
return;
}
}
}
var path = docManager.forcesavePath(fileName, userAddress, false); // get the path to the force saved document version
if (path == "") {
path = docManager.storagePath(fileName, userAddress); // or to the original document
}
res.setHeader("Content-Length", fileSystem.statSync(path).size); // add headers to the response to specify the page parameters
res.setHeader("Content-Type", mime.getType(path));
res.setHeader("Content-Disposition", "attachment; filename*=UTF-8\'\'" + encodeURIComponent(fileName));
var filestream = fileSystem.createReadStream(path);
filestream.pipe(res); // send file information to the response by streams
});
app.post("/upload", function (req, res) { // define a handler for uploading files
docManager.init(storageFolder, req, res);
docManager.storagePath(""); // mkdir if not exist
const userIp = docManager.curUserHostAddress(); // get the path to the user host
const uploadDir = path.join(storageFolder, userIp);
const uploadDirTmp = path.join(uploadDir, 'tmp'); // and create directory for temporary files if it doesn't exist
docManager.createDirectory(uploadDirTmp);
const form = new formidable.IncomingForm(); // create a new incoming form
form.uploadDir = uploadDirTmp; // and write there all the necessary parameters
form.keepExtensions = true;
form.maxFileSize = configServer.get("maxFileSize");
form.parse(req, function (err, fields, files) { // parse this form
if (err) { // if an error occurs
docManager.cleanFolderRecursive(uploadDirTmp, true); // clean the folder with temporary files
res.writeHead(200, { "Content-Type": "text/plain" }); // and write the error status and message to the response
res.write("{ \"error\": \"" + err.message + "\"}");
res.end();
return;
}
const file = files.uploadedFile;
if (file == undefined) { // if file parameter is undefined
res.writeHead(200, { "Content-Type": "text/plain" }); // write the error status and message to the response
res.write("{ \"error\": \"Uploaded file not found\"}");
res.end();
return;
}
file.name = docManager.getCorrectName(file.name);
if (configServer.get('maxFileSize') < file.size || file.size <= 0) { // check if the file size exceeds the maximum file size
docManager.cleanFolderRecursive(uploadDirTmp, true); // clean the folder with temporary files
res.writeHead(200, { "Content-Type": "text/plain" });
res.write("{ \"error\": \"File size is incorrect\"}");
res.end();
return;
}
const exts = [].concat(configServer.get('viewedDocs'), configServer.get('editedDocs'), configServer.get('convertedDocs')); // all the supported file extensions
const curExt = fileUtility.getFileExtension(file.name);
const documentType = fileUtility.getFileType(file.name);
if (exts.indexOf(curExt) == -1) { // check if the file extension is supported
docManager.cleanFolderRecursive(uploadDirTmp, true); // if not, clean the folder with temporary files
res.writeHead(200, { "Content-Type": "text/plain" }); // and write the error status and message to the response
res.write("{ \"error\": \"File type is not supported\"}");
res.end();
return;
}
fileSystem.rename(file.path, uploadDir + "/" + file.name, function (err) { // rename a file
docManager.cleanFolderRecursive(uploadDirTmp, true); // clean the folder with temporary files
res.writeHead(200, { "Content-Type": "text/plain" });
if (err) { // if an error occurs
res.write("{ \"error\": \"" + err + "\"}"); // write an error message to the response
} else {
res.write("{ \"filename\": \"" + file.name + "\", \"documentType\": \"" + documentType + "\" }"); // otherwise, write a new file name to the response
var user = users.getUser(req.query.userid); // get user id and name parameters or set them to the default values
docManager.saveFileData(file.name, user.id, user.name);
}
res.end();
});
});
});
app.post("/convert", function (req, res) { // define a handler for converting files
var fileName = fileUtility.getFileName(req.body.filename);
var filePass = req.body.filePass ? req.body.filePass : null;
var fileUri = docManager.getFileUri(fileName);
var fileExt = fileUtility.getFileExtension(fileName);
var fileType = fileUtility.getFileType(fileName);
var internalFileExt = docManager.getInternalExtension(fileType);
var response = res;
var writeResult = function (filename, step, error) {
var result = {};
// write file name, step and error values to the result object if they are defined
if (filename != null)
result["filename"] = filename;
if (step != null)
result["step"] = step;
if (error != null)
result["error"] = error;
response.setHeader("Content-Type", "application/json");
response.write(JSON.stringify(result));
response.end();
};
var callback = function (err, data) {
if (err) { // if an error occurs
if (err.name === "ConnectionTimeoutError" || err.name === "ResponseTimeoutError") { // check what type of error it is
writeResult(fileName, 0, null); // despite the timeout errors, write the file to the result object
} else {
writeResult(null, null, JSON.stringify(err)); // other errors trigger an error message
}
return;
}
try {
var responseUri = documentService.getResponseUri(data.toString());
var result = responseUri.key;
var newFileUri = responseUri.value; // get the callback url
if (result != 100) { // if the status isn't 100
writeResult(fileName, result, null); // write the origin file to the result object
return;
}
var correctName = docManager.getCorrectName(fileUtility.getFileName(fileName, true) + internalFileExt); // get the file name with a new extension
var file = syncRequest("GET", newFileUri);
fileSystem.writeFileSync(docManager.storagePath(correctName), file.getBody()); // write a file with a new extension, but with the content from the origin file
fileSystem.unlinkSync(docManager.storagePath(fileName)); // remove file with the origin extension
var userAddress = docManager.curUserHostAddress();
var historyPath = docManager.historyPath(fileName, userAddress, true);
var correctHistoryPath = docManager.historyPath(correctName, userAddress, true); // get the history path to the file with a new extension
fileSystem.renameSync(historyPath, correctHistoryPath); // change the previous history path
fileSystem.renameSync(path.join(correctHistoryPath, fileName + ".txt"), path.join(correctHistoryPath, correctName + ".txt")); // change the name of the .txt file with document information
writeResult(correctName, result, null); // write a file with a new name to the result object
} catch (e) {
console.log(e); // display error message in the console
writeResult(null, null, e.message);
}
};
try {
if (configServer.get('convertedDocs').indexOf(fileExt) != -1) { // check if the file with such an extension can be converted
let storagePath = docManager.storagePath(fileName);
const stat = fileSystem.statSync(storagePath);
let key = fileUri + stat.mtime.getTime();
key = documentService.generateRevisionId(key); // get document key
documentService.getConvertedUri(fileUri, fileExt, internalFileExt, key, true, callback, filePass); // get the url to the converted file
} else {
writeResult(fileName, null, null); // if the file with such an extension can't be converted, write the origin file to the result object
}
} catch (ex) {
console.log(ex);
writeResult(null, null, "Server error");
}
});
app.get("/files", function(req, res) { // define a handler for getting files information
try {
docManager.init(storageFolder, req, res);
const filesInDirectoryInfo = docManager.getFilesInfo(); // get the information about the files from the storage path
res.setHeader("Content-Type", "application/json");
res.write(JSON.stringify(filesInDirectoryInfo)); // transform files information into the json string
} catch (ex) {
console.log(ex);
res.write("Server error");
}
res.end();
});
app.get("/files/file/:fileId", function(req, res) { // define a handler for getting file information by its id
try {
docManager.init(storageFolder, req, res);
const fileId = req.params.fileId;
const fileInfoById = docManager.getFilesInfo(fileId); // get the information about the file specified by a file id
res.setHeader("Content-Type", "application/json");
res.write(JSON.stringify(fileInfoById));
} catch (ex) {
console.log(ex);
res.write("Server error");
}
res.end();
});
app.delete("/file", function (req, res) { // define a handler for removing file
try {
docManager.init(storageFolder, req, res);
let fileName = req.query.filename;
if (fileName) { // if the file name is defined
fileName = fileUtility.getFileName(fileName); // get its part without an extension
const filePath = docManager.storagePath(fileName); // get the path to this file
fileSystem.unlinkSync(filePath); // and delete it
const userAddress = docManager.curUserHostAddress();
const historyPath = docManager.historyPath(fileName, userAddress, true);
docManager.cleanFolderRecursive(historyPath, true); // clean all the files from the history folder
} else {
docManager.cleanFolderRecursive(docManager.storagePath(''), false); // if the file name is undefined, clean the storage folder
}
res.write("{\"success\":true}");
} catch (ex) {
console.log(ex);
res.write("Server error");
}
res.end();
});
app.get("/csv", function (req, res) { // define a handler for downloading csv files
var fileName = "csv.csv";
var csvPath = path.join(__dirname, "public", "assets", "sample", fileName);
res.setHeader("Content-Length", fileSystem.statSync(csvPath).size); // add headers to the response to specify the page parameters
res.setHeader("Content-Type", mime.getType(csvPath));
res.setHeader("Content-Disposition", "attachment; filename*=UTF-8\'\'" + encodeURIComponent(fileName));
var filestream = fileSystem.createReadStream(csvPath);
filestream.pipe(res); // send file information to the response by streams
})
app.post("/track", function (req, res) { // define a handler for tracking file changes
docManager.init(storageFolder, req, res);
var userAddress = req.query.useraddress;
var fileName = fileUtility.getFileName(req.query.filename);
var version = 0;
// track file changes
var processTrack = function (response, body, fileName, userAddress) {
// callback file saving process
var callbackProcessSave = function (downloadUri, body, fileName, userAddress, newFileName) {
try {
var storagePath = docManager.storagePath(newFileName, userAddress);
var historyPath = docManager.historyPath(newFileName, userAddress); // get the path to the history data
if (historyPath == "") { // if the history path doesn't exist
historyPath = docManager.historyPath(newFileName, userAddress, true); // create it
docManager.createDirectory(historyPath); // and create a directory for the history data
}
var count_version = docManager.countVersion(historyPath); // get the next file version number
version = count_version + 1;
var versionPath = docManager.versionPath(newFileName, userAddress, version); // get the path to the specified file version
docManager.createDirectory(versionPath); // create a directory to the specified file version
var downloadZip = body.changesurl;
if (downloadZip) {
var path_changes = docManager.diffPath(newFileName, userAddress, version); // get the path to the file with document versions differences
var diffZip = syncRequest("GET", downloadZip);
fileSystem.writeFileSync(path_changes, diffZip.getBody()); // write the document version differences to the archive
}
var changeshistory = body.changeshistory || JSON.stringify(body.history);
if (changeshistory) {
var path_changes_json = docManager.changesPath(newFileName, userAddress, version); // get the path to the file with document changes
fileSystem.writeFileSync(path_changes_json, changeshistory); // and write this data to the path in json format
}
var path_key = docManager.keyPath(newFileName, userAddress, version); // get the path to the key.txt file
fileSystem.writeFileSync(path_key, body.key); // write the key value to the key.txt file
var path_prev = path.join(versionPath, "prev" + fileUtility.getFileExtension(fileName)); // get the path to the previous file version
fileSystem.renameSync(docManager.storagePath(fileName, userAddress), path_prev); // and write it to the current path
var file = syncRequest("GET", downloadUri);
fileSystem.writeFileSync(storagePath, file.getBody());
var forcesavePath = docManager.forcesavePath(newFileName, userAddress, false); // get the path to the forcesaved file
if (forcesavePath != "") { // if this path is empty
fileSystem.unlinkSync(forcesavePath); // remove it
}
} catch (ex) {
response.write("{\"error\":1}");
response.end();
return;
}
response.write("{\"error\":0}");
response.end();
}
// file saving process
var processSave = function (downloadUri, body, fileName, userAddress, resp) {
var curExt = fileUtility.getFileExtension(fileName); // get current file extension
var downloadExt = fileUtility.getFileExtension(downloadUri); // get the extension of the downloaded file
var newFileName = fileName;
// convert downloaded file to the file with the current extension if these extensions aren't equal
if (downloadExt != curExt) {
var key = documentService.generateRevisionId(downloadUri);
newFileName = docManager.getCorrectName(fileUtility.getFileName(fileName, true) + downloadExt, userAddress); // get the correct file name if it already exists
try {
documentService.getConvertedUriSync(downloadUri, downloadExt, curExt, key, function (err, data) {
if (err) {
callbackProcessSave(downloadUri, body, fileName, userAddress, newFileName);
return;
}
try {
var res = documentService.getResponseUri(data);
callbackProcessSave(res.value, body, fileName, userAddress, fileName);
return;
} catch (ex) {
console.log(ex);
callbackProcessSave(downloadUri, body, fileName, userAddress, newFileName);
return;
}
});
return;
} catch (ex) {
console.log(ex);
}
}
callbackProcessSave(downloadUri, body, fileName, userAddress, newFileName);
};
// callback file force saving process
var callbackProcessForceSave = function (downloadUri, body, fileName, userAddress, newFileName = false){
try {
var downloadExt = fileUtility.getFileExtension(downloadUri);
var isSubmitForm = body.forcesavetype === 3; // SubmitForm
if (isSubmitForm) {
// new file
if (newFileName){
fileName = docManager.getCorrectName(fileUtility.getFileName(fileName, true) + "-form" + downloadExt, userAddress);
} else {
var ext = fileUtility.getFileExtension(fileName);
fileName = docManager.getCorrectName(fileUtility.getFileName(fileName, true) + "-form" + ext, userAddress);
}
var forcesavePath = docManager.storagePath(fileName, userAddress);
} else {
if (newFileName){
fileName = docManager.getCorrectName(fileUtility.getFileName(fileName, true) + downloadExt, userAddress);
}
// create forcesave path if it doesn't exist
forcesavePath = docManager.forcesavePath(fileName, userAddress, false);
if (forcesavePath == "") {
forcesavePath = docManager.forcesavePath(fileName, userAddress, true);
}
}
var file = syncRequest("GET", downloadUri);
fileSystem.writeFileSync(forcesavePath, file.getBody());
if (isSubmitForm) {
var uid =body.actions[0].userid
docManager.saveFileData(fileName, uid, "Filling Form", userAddress);
}
} catch (ex) {
response.write("{\"error\":1}");
response.end();
return;
}
response.write("{\"error\":0}");
response.end();
}
// file force saving process
var processForceSave = function (downloadUri, body, fileName, userAddress, resp) {
var curExt = fileUtility.getFileExtension(fileName);
var downloadExt = fileUtility.getFileExtension(downloadUri);
// convert downloaded file to the file with the current extension if these extensions aren't equal
if (downloadExt != curExt) {
var key = documentService.generateRevisionId(downloadUri);
try {
documentService.getConvertedUriSync(downloadUri, downloadExt, curExt, key, function (err, data) {
if (err) {
callbackProcessForceSave(downloadUri, body, fileName, userAddress, true);
return;
}
try {
var res = documentService.getResponseUri(data);
callbackProcessForceSave(res.value, body, fileName, userAddress, false);
return;
} catch (ex) {
console.log(ex);
callbackProcessForceSave(downloadUri, body, fileName, userAddress, true);
return;
}
});
return;
} catch (ex) {
console.log(ex);
}
}
callbackProcessForceSave (downloadUri, body, fileName, userAddress, false);
};
if (body.status == 1) { // editing
if (body.actions && body.actions[0].type == 0) { // finished edit
var user = body.actions[0].userid;
if (body.users.indexOf(user) == -1) {
var key = body.key;
try {
documentService.commandRequest("forcesave", key); // call the forcesave command
} catch (ex) {
console.log(ex);
}
}
}
} else if (body.status == 2 || body.status == 3) { // MustSave, Corrupted
processSave(body.url, body, fileName, userAddress, response); // save file
return;
} else if (body.status == 6 || body.status == 7) { // MustForceSave, CorruptedForceSave
processForceSave(body.url, body, fileName, userAddress, response); // force save file
return;
}
response.write("{\"error\":0}");
response.end();
};
// read request body
var readbody = function (request, response, fileName, userAddress) {
var content = "";
request.on('data', function (data) { // get data from the request
content += data;
});
request.on('end', function () {
var body = JSON.parse(content);
processTrack(response, body, fileName, userAddress); // and track file changes
});
};
// check jwt token
if (cfgSignatureEnable && cfgSignatureUseForRequest) {
var body = null;
if (req.body.hasOwnProperty("token")) { // if request body has its own token
body = documentService.readToken(req.body.token); // read and verify it
} else {
var checkJwtHeaderRes = documentService.checkJwtHeader(req); // otherwise, check jwt token headers
if (checkJwtHeaderRes) { // if they exist
var body;
if (checkJwtHeaderRes.payload) {
body = checkJwtHeaderRes.payload; // get the payload object
}
// get user address and file name from the query
if (checkJwtHeaderRes.query) {
if (checkJwtHeaderRes.query.useraddress) {
userAddress = checkJwtHeaderRes.query.useraddress;
}
if (checkJwtHeaderRes.query.filename) {
fileName = fileUtility.getFileName(checkJwtHeaderRes.query.filename);
}
}
}
}
if (body == null) {
res.write("{\"error\":1}");
res.end();
return;
}
processTrack(res, body, fileName, userAddress);
return;
}
if (req.body.hasOwnProperty("status")) { // if the request body has status parameter
processTrack(res, req.body, fileName, userAddress); // track file changes
} else {
readbody(req, res, fileName, userAddress); // otherwise, read request body first
}
});
app.get("/editor", function (req, res) { // define a handler for editing document
try {
docManager.init(storageFolder, req, res);
var fileExt = req.query.fileExt;
var history = [];
var historyData = [];
var lang = docManager.getLang();
var user = users.getUser(req.query.userid);
var userid = user.id;
var name = user.name;
var actionData = req.query.action ? req.query.action : "null";
var userGroup = user.group;
var reviewGroups = user.reviewGroups;
if (fileExt != null) {
var fileName = docManager.createDemo(!!req.query.sample, fileExt, userid, name); // create demo document of a given extension
// get the redirect path
var redirectPath = docManager.getServerUrl() + "/editor?fileName=" + encodeURIComponent(fileName) + docManager.getCustomParams();
res.redirect(redirectPath);
return;
}
var userAddress = docManager.curUserHostAddress();
var fileName = fileUtility.getFileName(req.query.fileName);
if (!docManager.existsSync(docManager.storagePath(fileName, userAddress))) { // if the file with a given name doesn't exist
throw {
"message": "File not found: " + fileName // display error message
};
}
var key = docManager.getKey(fileName);
var url = docManager.getDownloadUrl(fileName);
var urlUser = docManager.getlocalFileUri(fileName, 0, false)
var mode = req.query.mode || "edit"; // mode: view/edit/review/comment/fillForms/embedded
var type = req.query.type || ""; // type: embedded/mobile/desktop
if (type == "") {
type = new RegExp(configServer.get("mobileRegEx"), "i").test(req.get('User-Agent')) ? "mobile" : "desktop";
}
var canEdit = configServer.get('editedDocs').indexOf(fileUtility.getFileExtension(fileName)) != -1; // check if this file can be edited
var submitForm = canEdit && (mode == "edit" || mode == "fillForms");
var countVersion = 1;
var historyPath = docManager.historyPath(fileName, userAddress);
var changes = null;
var keyVersion = key;
if (historyPath != '') {
countVersion = docManager.countVersion(historyPath) + 1; // get the number of file versions
for (var i = 1; i <= countVersion; i++) { // get keys to all the file versions
if (i < countVersion) {
var keyPath = docManager.keyPath(fileName, userAddress, i);
keyVersion = "" + fileSystem.readFileSync(keyPath);
} else {
keyVersion = key;
}
history.push(docManager.getHistory(fileName, changes, keyVersion, i)); // write all the file history information
var historyD = {
version: i,
key: keyVersion,
url: i == countVersion ? url : (docManager.getlocalFileUri(fileName, i, true) + "/prev" + fileUtility.getFileExtension(fileName)),
};
if (i > 1 && docManager.existsSync(docManager.diffPath(fileName, userAddress, i-1))) { // check if the path to the file with document versions differences exists
historyD.previous = { // write information about previous file version
key: historyData[i-2].key,
url: historyData[i-2].url,
};
historyD.changesUrl = docManager.getlocalFileUri(fileName, i-1) + "/diff.zip"; // get the path to the diff.zip file and write it to the history object
}
historyData.push(historyD);
if (i < countVersion) {
var changesFile = docManager.changesPath(fileName, userAddress, i); // get the path to the file with document changes
changes = docManager.getChanges(changesFile); // get changes made in the file
}
}
} else { // if history path is empty
history.push(docManager.getHistory(fileName, changes, keyVersion, countVersion)); // write the history information about the last file version
historyData.push({
version: countVersion,
key: key,
url: url
});
}
if (cfgSignatureEnable) {
for (var i = 0; i < historyData.length; i++) {
historyData[i].token = jwt.sign(historyData[i], cfgSignatureSecret, {expiresIn: cfgSignatureSecretExpiresIn}); // sign token with given data using signature secret
}
}
// file config data
var argss = {
apiUrl: siteUrl + configServer.get('apiUrl'),
file: {
name: fileName,
ext: fileUtility.getFileExtension(fileName, true),
uri: url,
uriUser: urlUser,
version: countVersion,
created: new Date().toDateString(),
favorite: user.favorite != null ? user.favorite : "null"
},
editor: {
type: type,
documentType: fileUtility.getFileType(fileName),
key: key,
token: "",
callbackUrl: docManager.getCallback(fileName),
createUrl: docManager.getCreateUrl(fileUtility.getFileType(fileName), userid, type, lang),
isEdit: canEdit && (mode == "edit" || mode == "view" || mode == "filter" || mode == "blockcontent"),
review: canEdit && (mode == "edit" || mode == "review"),
comment: mode != "view" && mode != "fillForms" && mode != "embedded" && mode != "blockcontent",
fillForms: mode != "view" && mode != "comment" && mode != "embedded" && mode != "blockcontent",
modifyFilter: mode != "filter",
modifyContentControl: mode != "blockcontent",
copy: !user.deniedPermissions.includes("copy"),
download: !user.deniedPermissions.includes("download"),
print: !user.deniedPermissions.includes("print"),
mode: canEdit && mode != "view" ? "edit" : "view",
canBackToFolder: type != "embedded",
backUrl: docManager.getServerUrl() + "/",
curUserHostAddress: docManager.curUserHostAddress(),
lang: lang,
userid: userid,
name: name,
userGroup: userGroup,
reviewGroups: JSON.stringify(reviewGroups),
fileChoiceUrl: fileChoiceUrl,
submitForm: submitForm,
plugins: JSON.stringify(plugins),
actionData: actionData
},
history: history,
historyData: historyData,
dataInsertImage: {
fileType: "png",
url: docManager.getServerUrl(true) + "/images/logo.png"
},
dataCompareFile: {
fileType: "docx",
url: docManager.getServerUrl(true) + "/assets/sample/sample.docx"
},
dataMailMergeRecipients: {
fileType: "csv",
url: docManager.getServerUrl(true) + "/csv"
}
};
if (cfgSignatureEnable) {
app.render('config', argss, function(err, html){ // render a config template with the parameters specified
if (err) {
console.log(err);
} else {
// sign token with given data using signature secret
argss.editor.token = jwt.sign(JSON.parse("{"+html+"}"), cfgSignatureSecret, {expiresIn: cfgSignatureSecretExpiresIn});
argss.dataInsertImage.token = jwt.sign(argss.dataInsertImage, cfgSignatureSecret, {expiresIn: cfgSignatureSecretExpiresIn});
argss.dataCompareFile.token = jwt.sign(argss.dataCompareFile, cfgSignatureSecret, {expiresIn: cfgSignatureSecretExpiresIn});
argss.dataMailMergeRecipients.token = jwt.sign(argss.dataMailMergeRecipients, cfgSignatureSecret, {expiresIn: cfgSignatureSecretExpiresIn});
}
res.render("editor", argss); // render the editor template with the parameters specified
});
} else {
res.render("editor", argss);
}
}
catch (ex) {
console.log(ex);
res.status(500);
res.render("error", { message: "Server error" });
}
});
// "Not found" error with 404 status
app.use(function (req, res, next) {
const err = new Error("Not Found");
err.status = 404;
next(err);
});
// render the error template with the parameters specified
app.use(function (err, req, res, next) {
res.status(err.status || 500);
res.render("error", {
message: err.message
});
});
// save all the functions to the app module to export it later in other files
module.exports = app;