r2-utils-js
Version:
Readium 2 'utils' for NodeJS (TypeScript)
90 lines • 3.74 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.injectStreamInZip = injectStreamInZip;
exports.injectBufferInZip = injectBufferInZip;
exports.injectFileInZip = injectFileInZip;
var debug_ = require("debug");
var fs = require("fs");
var yauzl = require("yauzl");
var yazl = require("yazl");
var debug = debug_("r2:utils#zip/zipInjector");
var InjectType;
(function (InjectType) {
InjectType[InjectType["FILE"] = 0] = "FILE";
InjectType[InjectType["BUFFER"] = 1] = "BUFFER";
InjectType[InjectType["STREAM"] = 2] = "STREAM";
})(InjectType || (InjectType = {}));
function injectStreamInZip(destPathTMP, destPathFINAL, stream, zipEntryPath, zipError, doneCallback) {
injectObjectInZip(destPathTMP, destPathFINAL, stream, InjectType.STREAM, zipEntryPath, zipError, doneCallback);
}
function injectBufferInZip(destPathTMP, destPathFINAL, buffer, zipEntryPath, zipError, doneCallback) {
injectObjectInZip(destPathTMP, destPathFINAL, buffer, InjectType.BUFFER, zipEntryPath, zipError, doneCallback);
}
function injectFileInZip(destPathTMP, destPathFINAL, filePath, zipEntryPath, zipError, doneCallback) {
injectObjectInZip(destPathTMP, destPathFINAL, filePath, InjectType.FILE, zipEntryPath, zipError, doneCallback);
}
function injectObjectInZip(destPathTMP, destPathFINAL, contentsToInject, typeOfContentsToInject, zipEntryPath, zipError, doneCallback) {
yauzl.open(destPathTMP, { lazyEntries: true, autoClose: false }, function (err, zip) {
if (err || !zip) {
debug("yauzl init ERROR");
zipError(err);
return;
}
var zipfile = new yazl.ZipFile();
zip.on("error", function (erro) {
debug("yauzl ERROR");
zipError(erro);
});
zip.readEntry();
zip.on("entry", function (entry) {
if (entry.fileName[entry.fileName.length - 1] === "/") {
}
else if (entry.fileName === zipEntryPath) {
}
else {
zip.openReadStream(entry, function (errz, stream) {
if (err || !stream) {
debug("yauzl openReadStream ERROR");
debug(errz);
zipError(errz);
return;
}
var compress = entry.fileName !== "mimetype";
zipfile.addReadStream(stream, entry.fileName, { compress: compress });
});
}
zip.readEntry();
});
zip.on("end", function () {
debug("yauzl END");
process.nextTick(function () {
zip.close();
});
if (typeOfContentsToInject === InjectType.FILE) {
zipfile.addFile(contentsToInject, zipEntryPath);
}
else if (typeOfContentsToInject === InjectType.BUFFER) {
zipfile.addBuffer(contentsToInject, zipEntryPath);
}
else if (typeOfContentsToInject === InjectType.STREAM) {
zipfile.addReadStream(contentsToInject, zipEntryPath);
}
else {
debug("yazl FAIL to inject! (unknown type)");
}
zipfile.end();
var destStream2 = fs.createWriteStream(destPathFINAL);
zipfile.outputStream.pipe(destStream2);
destStream2.on("finish", function () {
doneCallback();
});
destStream2.on("error", function (ere) {
zipError(ere);
});
});
zip.on("close", function () {
debug("yauzl CLOSE");
});
});
}
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