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[LibreJS][0] is a browser extension developed by GNU which ensures only Free (libre) JavaScript is run. To determine whether given JavaScript is Free, LibreJS consults metadata included in the JavaScript file. Since Miniflux is Free Software, getting its JavaScript to work when LibreJS is installed is just a matter of adding license metadata to the returned JavaScript source. [0]: https://www.gnu.org/software/librejs/index.html
46 lines
1.4 KiB
Go
46 lines
1.4 KiB
Go
// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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package ui // import "miniflux.app/v2/internal/ui"
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import (
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"fmt"
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"net/http"
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"strings"
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"time"
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"miniflux.app/v2/internal/http/request"
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"miniflux.app/v2/internal/http/response"
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"miniflux.app/v2/internal/http/response/html"
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"miniflux.app/v2/internal/http/route"
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"miniflux.app/v2/internal/ui/static"
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)
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const licensePrefix = "//@license magnet:?xt=urn:btih:8e4f440f4c65981c5bf93c76d35135ba5064d8b7&dn=apache-2.0.txt Apache-2.0\n"
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const licenseSuffix = "\n//@license-end"
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func (h *handler) showJavascript(w http.ResponseWriter, r *http.Request) {
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filename := request.RouteStringParam(r, "name")
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etag, found := static.JavascriptBundleChecksums[filename]
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if !found {
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html.NotFound(w, r)
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return
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}
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response.New(w, r).WithCaching(etag, 48*time.Hour, func(b *response.Builder) {
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contents := static.JavascriptBundles[filename]
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if filename == "service-worker" {
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variables := fmt.Sprintf(`const OFFLINE_URL=%q;`, route.Path(h.router, "offline"))
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contents = append([]byte(variables), contents...)
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}
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// cloning the prefix since `append` mutates its first argument
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contents = append([]byte(strings.Clone(licensePrefix)), contents...)
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contents = append(contents, []byte(licenseSuffix)...)
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b.WithHeader("Content-Type", "text/javascript; charset=utf-8")
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b.WithBody(contents)
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b.Write()
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})
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}
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