integrated download and hash functionality

This commit is contained in:
FinnHornhoover 2023-09-27 00:13:59 +03:00
parent 16a99f86c7
commit 79bdba74a5
2 changed files with 185 additions and 390 deletions

View File

@ -261,181 +261,6 @@ function getCacheInfoCell(versionString, cacheMode) {
return cellCache;
}
function getFileHash(filePath) {
var readCount = 0;
var buff = new Buffer(chunkSize);
var hash = createHash("sha256");
var file = remotefs.openSync(filePath, "r");
while ((readCount = remotefs.readSync(file, buff, 0, chunkSize, null)) > 0) {
hash.update(buff.slice(0, readCount));
}
remotefs.closeSync(file);
return hash.digest(encoding="hex");
}
/*
function downloadFiles(root, client, sizes, hashes, updateCallback, endCallback) {
if (hashes.length === 0) {
endCallback();
return;
}
var filePath = Object.keys(hashes)[0];
var fileHash = hashes[filePath];
delete hashes[filePath];
var fullFilePath = path.join(root, filePath);
var fullCDNPath = "http://" + [cdn, "ff", "big", filePath].join("/");
if (remotefs.existsSync(fullFilePath) && fileHash === getFileHash(fullFilePath)) {
console.log(fullFilePath + " is intact, skipping...");
return;
}
downloadFile(client, fullCDNPath, fullFilePath, function () {
var sizeRead = remotefs.statSync(fullFilePath).size;
if (fileHash === getFileHash(fullFilePath)) {
sizes.intact += sizeRead;
} else {
sizes.altered += sizeRead;
}
console.log(fullFilePath + " was downloaded from " + fullCDNPath);
setTimeout(function () {
updateCallback(sizes);
downloadFiles(root, client, sizes, hashes, updateCallback, endCallback);
}, 100);
});
}
function downloadFile(client, fullCDNPath, fullFilePath, callback) {
remotefs.ensureDirSync(path.dirname(fullFilePath));
var urlParts = url.parse(fullCDNPath);
var req = client.request("GET", urlParts.path, {
"Host": urlParts.hostname,
"Content-Type": "application/octet-stream",
"Referer": fullCDNPath.split("/").slice(0, 4).join("/") + "/",
"Connection": "keep-alive",
});
var writeStream = remotefs.createWriteStream(fullFilePath);
var retry = function (err) {
writeStream.end();
writeStream.destroy();
remotefs.removeSync(fullFilePath);
console.log("Error writing file " + fullFilePath + "\n" + err);
setTimeout(function () {
console.log("Retrying " + fullCDNPath);
downloadFile(client, fullCDNPath, fullFilePath, callback);
}, 1000);
}
writeStream.on("error", retry);
req.on("response", function (res) {
if (res.statusCode >= 300) {
console.log("Error in fetching file " + fullFilePath + " from " + fullCDNPath);
retry("Status Code: " + res.statusCode);
return;
}
res.pipe(writeStream);
res.on("end", callback);
res.on("error", retry);
});
req.on("error", retry);
req.end();
}
*/
function downloadFile(nginxDir, localDir, relativePath, callback) {
var nginxUrl = path.dirname(nginxDir) + "/" + relativePath;
var localPath = path.join(localDir, relativePath);
// Create directories if they don't exist
var dirName = path.dirname(localPath);
remotefs.ensureDirSync(dirName);
// HTTP request to download the file
var fileStream = remotefs.createWriteStream(localPath);
var urlParse = url.parse(nginxUrl);
var client = http.createClient(80, urlParse.hostname);
var options = {
url: urlParse.hostname,
port: 80,
path: urlParse.path,
headers: {
"Host": urlParse.hostname,
"Content-Type": "application/octet-stream",
"Referer": nginxDir,
"Connection": "keep-alive",
}
};
var request = client.request("GET", urlParse.path, options, function(response) {
// Handle errors
response.on("error", function(err) {
console.error("Error downloading " + relativePath + ": " + err.message);
retryDownload(nginxDir, localDir, relativePath, callback); // Retry download
});
response.pipe(fileStream);
// When the download is complete, invoke the callback
response.on("end", function() {
fileStream.end();
callback(null, relativePath);
});
});
// Handle HTTP errors
request.on("error", function(err) {
console.error("Error downloading " + relativePath + ": " + err.message);
retryDownload(nginxDir, localDir, relativePath, callback); // Retry download
});
request.end();
}
// Function to retry downloading a file after a delay
function retryDownload(nginxDir, localDir, relativePath, callback) {
setTimeout(function() {
downloadFile(nginxDir, localDir, relativePath, callback);
}, 1000); // Retry after 1 second
}
// Function to download multiple files in parallel
function downloadFiles(nginxDir, localDir, fileRelativePaths, allDoneCallback) {
async.eachLimit(
fileRelativePaths,
5, // Number of parallel downloads
function(relativePath, callback) {
downloadFile(nginxDir, localDir, relativePath, callback);
},
function(err) {
if (err) {
console.error("Download failed: " + err);
} else {
console.log("All files downloaded successfully.");
allDoneCallback();
}
}
);
}
function loadCacheList() {
var versionjson = remotefs.readJsonSync(versionsPath);
versionArray = versionjson["versions"];
@ -516,151 +341,48 @@ function deletePlayableCache(versionString) {
resetCacheNames();
if (versionString === "Offline") {
console.log("Cannot delete Offline directory!");
return;
}
remotefs.removeSync(path.join(cacheRoot, versionString));
console.log("Playable cache " + versionString + " has been removed!");
checkPlayableCache(versionString);
// this updates the labels etc. properly
ipc.send("hash-check", {
localDir: cacheRoot,
cacheMode: "playable",
versionString: versionString,
hashes: versionHashes.playable[versionString],
});
}
function downloadOfflineCache(versionString) {
var buttonDownload = document.getElementById(getCacheButtonID(versionString, "offline", "download"));
var buttonFix = document.getElementById(getCacheButtonID(versionString, "offline", "fix"));
var buttonDelete = document.getElementById(getCacheButtonID(versionString, "offline", "delete"));
var label = document.getElementById(getCacheElemID(versionString, "offline", "label"));
var version = versionArray.filter(function (value) {
return value.name === versionString;
})[0];
var sizes = {
intact: 0,
altered: 0,
total: version.offline_size
};
buttonDownload.setAttribute("disabled", "");
buttonFix.setAttribute("disabled", "");
buttonDelete.setAttribute("disabled", "");
buttonDownload.children[0].setAttribute("class", "fas fa-spinner fa-spin fa-fw");
buttonFix.children[0].setAttribute("class", "fas fa-spinner fa-spin fa-fw");
/*
var client = http.createClient(80, cdn);
downloadFiles(
offlineRoot,
client,
sizes,
JSON.parse(JSON.stringify(versionHashes.offline[versionString])),
function (sizesNow) {
label.innerHTML = getCacheLabelText(sizesNow);
},
function () {
buttonDownload.children[0].setAttribute("class", "fas fa-download");
buttonFix.children[0].setAttribute("class", "fas fa-hammer");
checkOfflineCache(versionString);
}
);
*/
/*
downloadFiles(
version.url,
offlineRoot,
Object.keys(JSON.parse(JSON.stringify(versionHashes.offline[versionString]))),
function () {
buttonDownload.children[0].setAttribute("class", "fas fa-download");
buttonFix.children[0].setAttribute("class", "fas fa-hammer");
checkOfflineCache(versionString);
}
);
*/
ipc.send("download-files", {
nginxDir: version.url,
// download-files will run hash-check after download
ipc.send("download-files", {
cdnDir: version.url,
localDir: offlineRoot,
fileRelativePaths: Object.keys(versionHashes.offline[versionString]),
hashes: versionHashes.offline[versionString],
cacheMode: "offline",
versionString: versionString,
});
});
}
function deleteOfflineCache(versionString) {
remotefs.removeSync(path.join(offlineRoot, versionString));
console.log("Offline cache " + versionString + " has been removed!");
checkOfflineCache(versionString);
}
function checkPlayableCache(versionString) {
var button = document.getElementById(getCacheButtonID(versionString, "playable", "delete"));
var label = document.getElementById(getCacheElemID(versionString, "playable", "label"));
var sizes = versionSizes.playable[versionString];
resetCacheNames();
$.each(versionHashes.playable[versionString], function (filePath, fileHash) {
var fullFilePath = path.join(cacheRoot, filePath);
if (remotefs.existsSync(fullFilePath)) {
var fileSize = remotefs.statSync(fullFilePath).size;
if (fileHash === getFileHash(fullFilePath)) {
sizes.intact += fileSize;
} else {
sizes.altered += fileSize;
}
}
// this updates the labels etc. properly
ipc.send("hash-check", {
localDir: offlineRoot,
cacheMode: "offline",
versionString: versionString,
hashes: versionHashes.offline[versionString],
});
if (sizes.intact > 0 || sizes.altered > 0) {
button.removeAttribute("disabled");
} else {
button.setAttribute("disabled", "");
}
label.innerHTML = getCacheLabelText(sizes);
}
function checkOfflineCache(versionString) {
var buttonDownload = document.getElementById(getCacheButtonID(versionString, "offline", "download"));
var buttonFix = document.getElementById(getCacheButtonID(versionString, "offline", "fix"));
var buttonDelete = document.getElementById(getCacheButtonID(versionString, "offline", "delete"));
var label = document.getElementById(getCacheElemID(versionString, "offline", "label"));
var sizes = versionSizes.offline[versionString];
$.each(versionHashes.offline[versionString], function (filePath, fileHash) {
var fullFilePath = path.join(offlineRoot, filePath);
if (remotefs.existsSync(fullFilePath)) {
var fileSize = remotefs.statSync(fullFilePath).size;
if (fileHash === getFileHash(fullFilePath)) {
sizes.intact += fileSize;
} else {
sizes.altered += fileSize;
}
}
});
if (sizes.intact > 0 || sizes.altered > 0) {
buttonDownload.setAttribute("disabled", "");
buttonDelete.removeAttribute("disabled");
} else {
buttonDownload.removeAttribute("disabled");
buttonDelete.setAttribute("disabled", "");
}
if (sizes.altered > 0) {
buttonFix.removeAttribute("disabled");
} else {
buttonFix.setAttribute("disabled", "");
}
label.innerHTML = getCacheLabelText(sizes);
}
function resetCacheNames() {
@ -876,34 +598,81 @@ $("#of-deleteservermodal").on("show.bs.modal", function (e) {
$("#deleteserver-servername").html(result.description);
});
ipc.on("download-update", function (arg) {
var sizes = versionSizes.offline[arg.versionString];
sizes.intact += arg.size;
ipc.on("storage-loading-start", function (arg) {
var sizes = versionSizes[arg.cacheMode][arg.versionString];
if (arg.resetIntactSize) {
sizes.intact = 0;
}
sizes.altered = 0;
var buttonDelete = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "delete"));
var buttonDownload = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "download"));
var buttonFix = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "fix"));
var label = document.getElementById(getCacheElemID(arg.versionString, arg.cacheMode, "label"));
buttonDelete.setAttribute("disabled", "");
buttonDelete.children[0].setAttribute("class", "fas fa-spinner fa-spin fa-fw");
if (arg.cacheMode === "offline") {
buttonDownload.setAttribute("disabled", "");
buttonDownload.children[0].setAttribute("class", "fas fa-spinner fa-spin fa-fw");
buttonFix.setAttribute("disabled", "");
buttonFix.children[0].setAttribute("class", "fas fa-spinner fa-spin fa-fw");
}
var label = document.getElementById(getCacheElemID(arg.versionString, "offline", "label"));
label.innerHTML = getCacheLabelText(sizes);
});
ipc.on("download-success", function (versionString) {
var buttonDownload = document.getElementById(getCacheButtonID(versionString, "offline", "download"));
var buttonFix = document.getElementById(getCacheButtonID(versionString, "offline", "fix"));
buttonDownload.children[0].setAttribute("class", "fas fa-download");
buttonFix.children[0].setAttribute("class", "fas fa-hammer");
checkOfflineCache(versionString);
});
ipc.on("hash-update", function (arg) {
ipc.on("storage-label-update", function (arg) {
var sizes = versionSizes[arg.cacheMode][arg.versionString];
if (arg.sizes) {
sizes.intact += arg.sizes.intact;
sizes.altered += arg.sizes.altered;
} else {
sizes.intact = 0;
sizes.altered = 0;
}
sizes.intact += arg.sizes.intact;
sizes.altered += arg.sizes.altered;
var label = document.getElementById(getCacheElemID(arg.versionString, arg.cacheMode, "label"));
label.innerHTML = getCacheLabelText(sizes);
});
ipc.on("download-complete", function (arg) {
ipc.send("hash-check", {
localDir: (arg.cacheMode === "offline") ? offlineRoot : cacheRoot,
cacheMode: arg.cacheMode,
versionString: arg.versionString,
hashes: versionHashes[arg.cacheMode][arg.versionString],
});
});
ipc.on("hash-check-complete", function (arg) {
var sizes = versionSizes[arg.cacheMode][arg.versionString];
var buttonDelete = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "delete"));
var buttonDownload = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "download"));
var buttonFix = document.getElementById(getCacheButtonID(arg.versionString, arg.cacheMode, "fix"));
buttonDelete.children[0].setAttribute("class", "fas fa-trash-alt");
if (arg.cacheMode === "offline") {
buttonDownload.children[0].setAttribute("class", "fas fa-download");
buttonFix.children[0].setAttribute("class", "fas fa-hammer");
}
if (sizes.intact > 0 || sizes.altered > 0) {
buttonDelete.removeAttribute("disabled");
if (arg.cacheMode === "offline") {
buttonDownload.setAttribute("disabled", "");
if (sizes.altered > 0 || sizes.intact < sizes.total) {
buttonFix.removeAttribute("disabled");
}
}
} else {
buttonDelete.setAttribute("disabled", "");
if (arg.cacheMode === "offline") {
buttonDownload.removeAttribute("disabled");
buttonFix.setAttribute("disabled", "");
}
}
});

166
index.js
View File

@ -125,36 +125,62 @@ app.on("ready", function () {
});
ipc.on("download-files", function (event, arg) {
mainWindow.webContents.send("storage-loading-start", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
resetIntactSize: false,
});
downloadFiles(
arg.nginxDir,
arg.cdnDir,
arg.localDir,
arg.fileRelativePaths,
function (size) {
mainWindow.webContents.send("download-update", {
size: size,
arg.hashes,
function (sizes) {
mainWindow.webContents.send("storage-label-update", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
sizes: sizes,
});
},
function () {
mainWindow.webContents.send("download-success", arg.versionString);
mainWindow.webContents.send("download-complete", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
});
},
function (err) {
dialog.showErrorBox("Error!", "Download was unsuccessful:\n" + err);
}
);
});
ipc.on("hash-check", function (event, arg) {
mainWindow.webContents.send("hash-update", {
mainWindow.webContents.send("storage-loading-start", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
// no size sent, reset sizes
resetIntactSize: true,
});
checkHashes(arg.localDir, arg.hashes, function (sizes) {
mainWindow.webContents.send("hash-update", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
sizes: sizes,
});
});
checkHashes(
arg.localDir,
arg.hashes,
function (sizes) {
mainWindow.webContents.send("storage-label-update", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
sizes: sizes,
});
},
function () {
mainWindow.webContents.send("hash-check-complete", {
cacheMode: arg.cacheMode,
versionString: arg.versionString,
});
},
function (err) {
dialog.showErrorBox("Error!", "Could not verify file integrity:\n" + err);
}
);
});
});
@ -207,78 +233,71 @@ function showMainWindow() {
});
}
function downloadFile(nginxDir, localDir, relativePath, callback, updateCallback) {
var nginxUrl = path.dirname(nginxDir) + "/" + relativePath;
function downloadFile(cdnDir, localDir, relativePath, fileHash, callback, updateCallback) {
var nginxUrl = path.dirname(cdnDir) + "/" + relativePath;
var localPath = path.join(localDir, relativePath);
// Create directories if they don't exist
var dirName = path.dirname(localPath);
fs.ensureDirSync(dirName);
// HTTP request to download the file
var fileStream = fs.createWriteStream(localPath);
var urlParse = url.parse(nginxUrl);
var client = http.createClient(80, urlParse.hostname);
var options = {
method: "GET",
url: urlParse.hostname,
port: 80,
path: urlParse.path,
headers: {
"Host": urlParse.hostname,
"Content-Type": "application/octet-stream",
"Referer": nginxDir,
"Connection": "keep-alive",
fs.ensureDir(dirName, function (createDirErr) {
if (createDirErr) {
console.log("Could not create path " + dirName + ": " + createDirErr);
callback(createDirErr);
return;
}
};
var request = client.request("GET", urlParse.path, options);
// HTTP request to download the file
var fileStream = fs.createWriteStream(localPath);
request.on("response", function(response) {
response.pipe(fileStream);
var urlParse = url.parse(nginxUrl);
var client = http.createClient(80, urlParse.hostname);
var options = {
method: "GET",
url: urlParse.hostname,
port: 80,
path: urlParse.path,
headers: {
"Host": urlParse.hostname,
"Content-Type": "application/octet-stream",
"Referer": cdnDir,
"Connection": "keep-alive",
}
};
// When the download is complete, invoke the callback
response.on("end", function() {
fileStream.end();
updateCallback(fs.statSync(localPath).size);
callback(null, relativePath);
var request = client.request("GET", urlParse.path, options);
request.on("response", function (response) {
response.pipe(fileStream);
// When the download is complete, invoke the callback
response.on("end", function() {
fileStream.end();
checkHash(localDir, relativePath, fileHash, callback, updateCallback);
});
// Handle errors
response.on("error", callback);
});
// Handle errors
response.on("error", function(err) {
console.error("Error downloading " + relativePath + ": " + err.message);
retryDownload(nginxDir, localDir, relativePath, callback, updateCallback); // Retry download
});
// Handle HTTP errors
request.on("error", callback);
request.end();
});
// Handle HTTP errors
request.on("error", function(err) {
console.error("Error downloading " + relativePath + ": " + err.message);
retryDownload(nginxDir, localDir, relativePath, callback, updateCallback); // Retry download
});
request.end();
}
// Function to retry downloading a file after a delay
function retryDownload(nginxDir, localDir, relativePath, callback, updateCallback) {
setTimeout(function() {
downloadFile(nginxDir, localDir, relativePath, callback, updateCallback);
}, 1000); // Retry after 1 second
}
// Function to download multiple files in parallel
function downloadFiles(nginxDir, localDir, fileRelativePaths, updateCallback, allDoneCallback) {
function downloadFiles(cdnDir, localDir, hashes, updateCallback, allDoneCallback, errorCallback) {
async.eachLimit(
fileRelativePaths,
Object.keys(hashes),
5, // Number of parallel downloads
function (relativePath, callback) {
downloadFile(nginxDir, localDir, relativePath, callback, updateCallback);
downloadFile(cdnDir, localDir, relativePath, hashes[relativePath], callback, updateCallback);
},
function (err) {
if (err) {
console.error("Download failed: " + err);
errorCallback(err);
} else {
console.log("All files downloaded successfully.");
allDoneCallback();
@ -297,8 +316,11 @@ function checkHash(localDir, relativePath, fileHash, callback, updateCallback) {
fs.open(localPath, "r", function (openErr, file) {
if (openErr) {
if (openErr.code !== "ENOENT") {
if (openErr.code === "ENOENT") {
callback();
} else {
console.log("Error opening file for hash check: " + openErr);
callback(openErr);
}
return;
}
@ -310,6 +332,7 @@ function checkHash(localDir, relativePath, fileHash, callback, updateCallback) {
updater = function (readErr, readSize) {
if (readErr) {
console.log("Error reading file for hash check: " + readErr);
callback(readErr);
} else if (readSize > 0) {
hash.update(buff.slice(0, readSize));
totalCount += readSize;
@ -323,9 +346,10 @@ function checkHash(localDir, relativePath, fileHash, callback, updateCallback) {
fs.close(file, function (fileCloseErr) {
if (fileCloseErr) {
console.log("Error closing file for hash check: " + fileCloseErr);
callback(fileCloseErr);
} else {
callback(null, relativePath);
updateCallback(sizes);
callback();
}
});
}
@ -335,8 +359,7 @@ function checkHash(localDir, relativePath, fileHash, callback, updateCallback) {
});
}
function checkHashes(localDir, hashes, updateCallback) {
console.log(hashes);
function checkHashes(localDir, hashes, updateCallback, allDoneCallback, errorCallback) {
async.eachLimit(
Object.keys(hashes),
20,
@ -346,6 +369,9 @@ function checkHashes(localDir, hashes, updateCallback) {
function (err) {
if (err) {
console.log("Hash check failed: " + err);
errorCallback(err);
} else {
allDoneCallback();
}
}
);