119 lines
2.7 KiB
JavaScript
119 lines
2.7 KiB
JavaScript
export const FileSource =
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{
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Url : 1,
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File : 2,
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Decompressed : 3
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};
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export const FileFormat =
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{
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Text : 1,
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Binary : 2
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};
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export function GetFileName (filePath)
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{
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let firstSeparator = filePath.lastIndexOf ('/');
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if (firstSeparator === -1) {
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firstSeparator = filePath.lastIndexOf ('\\');
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}
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let fileName = filePath;
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if (firstSeparator !== -1) {
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fileName = filePath.substring (firstSeparator + 1);
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}
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let firstParamIndex = fileName.indexOf ('?');
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if (firstParamIndex !== -1) {
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fileName = fileName.substring (0, firstParamIndex);
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}
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return decodeURI (fileName);
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}
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export function GetFileExtension (filePath)
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{
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let fileName = GetFileName (filePath);
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let firstPoint = fileName.lastIndexOf ('.');
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if (firstPoint === -1) {
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return '';
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}
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let extension = fileName.substring (firstPoint + 1);
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return extension.toLowerCase ();
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}
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export function RequestUrl (url, format)
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{
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return new Promise ((resolve, reject) => {
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let request = new XMLHttpRequest ();
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request.open ('GET', url, true);
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if (format === FileFormat.Text) {
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request.responseType = 'text';
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} else if (format === FileFormat.Binary) {
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request.responseType = 'arraybuffer';
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} else {
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reject ();
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return;
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}
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request.onload = function () {
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if (request.status === 200) {
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resolve (request.response);
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} else {
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reject ();
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}
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};
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request.onerror = function () {
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reject ();
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};
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request.send (null);
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});
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}
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export function ReadFile (file, format)
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{
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return new Promise ((resolve, reject) => {
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let reader = new FileReader ();
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reader.onloadend = function (event) {
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if (event.target.readyState === FileReader.DONE) {
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resolve (event.target.result);
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}
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};
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reader.onerror = function () {
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reject ();
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};
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if (format === FileFormat.Text) {
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reader.readAsText (file);
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} else if (format === FileFormat.Binary) {
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reader.readAsArrayBuffer (file);
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} else {
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reject ();
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}
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});
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}
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export function TransformFileHostUrls (urls)
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{
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for (let i = 0; i < urls.length; i++) {
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let url = urls[i];
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if (url.search (/www\.dropbox\.com/u) !== -1) {
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url = url.replace ('www.dropbox.com', 'dl.dropbox.com');
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let separatorPos = url.indexOf ('?');
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if (separatorPos !== -1) {
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url = url.substring (0, separatorPos);
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}
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urls[i] = url;
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} else if (url.search (/github\.com/u) !== -1) {
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url = url.replace ('github.com', 'raw.githubusercontent.com');
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url = url.replace ('/blob', '');
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let separatorPos = url.indexOf ('?');
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if (separatorPos !== -1) {
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url = url.substring (0, separatorPos);
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}
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urls[i] = url;
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}
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}
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}
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