mirror of
https://github.com/opencloud-eu/opencloud.git
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74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
/*
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* Copyright 2017-2019 Kopano and its licensors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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package identifier
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import (
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"html/template"
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"net/http"
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"net/url"
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"github.com/libregraph/lico/version"
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)
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var trampolinTemplate = template.Must(template.New("trampolin").Parse(`<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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</head>
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<body trampolin="{{.URI}}">
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<script src="trampolin/trampolin.js?v={{.Version}}"></script>
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<noscript>Javascript is required for this app.</noscript>
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</body>
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</html>
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`))
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var trampolinScript = []byte(`(function(window) {
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window.location.replace(document.body.getAttribute('trampolin'));
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}(window));
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`)
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var trampolinVersion = url.QueryEscape(version.Version)
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type trampolinData struct {
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URI string
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Version string
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}
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func (i *Identifier) writeTrampolinHTML(rw http.ResponseWriter, req *http.Request, uri *url.URL) {
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data := &trampolinData{
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URI: uri.String(),
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Version: trampolinVersion,
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}
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rw.Header().Set("Content-Type", "text/html")
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rw.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
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rw.Header().Set("Pragma", "no-cache")
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rw.Header().Set("Expires", "0")
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err := trampolinTemplate.Execute(rw, data)
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if err != nil {
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i.logger.WithError(err).Errorln("failed to write trampolin")
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}
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}
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func (i *Identifier) writeTrampolinScript(rw http.ResponseWriter, req *http.Request) {
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rw.Header().Set("Content-Type", "application/javascript")
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rw.Header().Set("Cache-Control", "public, max-age=31536000, immutable")
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rw.Write(trampolinScript)
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}
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