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59 lines
1.3 KiB
59 lines
1.3 KiB
6 years ago
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/** HTML escape */
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function escapeHtml(unsafe) {
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return unsafe
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.replace(/&/g, "&")
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.replace(/</g, "<")
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.replace(/>/g, ">")
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.replace(/"/g, """)
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.replace(/'/g, "'");
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}
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/** Escape URL chars that could throw off the meta redirect tag */
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function sanitizeUrl(unsafe) {
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return unsafe
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.replace(/;/g, "%3B");
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}
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/** Remove the most risky characters from a filename string */
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function cleanFilename(unsafe) {
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return unsafe
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.replace(/[/\\?*|"'<>:]+/g, " ")
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.replace(/\s+/g, " ");
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}
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browser.browserAction.onClicked.addListener((tab) => {
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const escapedUrl = escapeHtml(sanitizeUrl(tab.url));
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const escapedTitle = escapeHtml(tab.title);
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const filename = cleanFilename(tab.title);
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const content = new Blob([
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`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>${escapedTitle}</title>
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<meta http-equiv="refresh" content="0; url=${escapedUrl}">
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<style>
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body {
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padding: 1em;
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text-align: center;
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font-family: sans-serif;
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color:#aaa;
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}
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a, a:visited, a:hover, a:link {
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color:#888;
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}
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</style>
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</head>
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<body>
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Redirecting to: <a href="${escapedUrl}">${escapedUrl}</a>
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</body>
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</html>
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`]);
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browser.downloads.download({
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filename: `${filename}.link.html`,
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url: URL.createObjectURL(content)
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});
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});
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