2020-05-04 14:58:02 +00:00
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// Copyright or © or Copr. happyDNS (2020)
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//
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// contact@happydns.org
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//
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// This software is a computer program whose purpose is to provide a modern
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// interface to interact with DNS systems.
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//
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// This software is governed by the CeCILL license under French law and abiding
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// by the rules of distribution of free software. You can use, modify and/or
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// redistribute the software under the terms of the CeCILL license as
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// circulated by CEA, CNRS and INRIA at the following URL
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// "http://www.cecill.info".
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//
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// As a counterpart to the access to the source code and rights to copy, modify
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// and redistribute granted by the license, users are provided only with a
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// limited warranty and the software's author, the holder of the economic
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// rights, and the successive licensors have only limited liability.
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//
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// In this respect, the user's attention is drawn to the risks associated with
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// loading, using, modifying and/or developing or reproducing the software by
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// the user in light of its specific status of free software, that may mean
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// that it is complicated to manipulate, and that also therefore means that it
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// is reserved for developers and experienced professionals having in-depth
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// computer knowledge. Users are therefore encouraged to load and test the
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// software's suitability as regards their requirements in conditions enabling
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// the security of their systems and/or data to be ensured and, more generally,
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// to use and operate it in the same conditions as regards security.
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//
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// The fact that you are presently reading this means that you have had
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// knowledge of the CeCILL license and that you accept its terms.
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2019-07-16 09:07:03 +00:00
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package main
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import (
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2020-04-19 06:49:30 +00:00
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"context"
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2019-07-16 09:07:03 +00:00
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"log"
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2020-04-20 09:55:37 +00:00
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"math/rand"
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2019-07-16 09:07:03 +00:00
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"net/http"
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"net/url"
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"strings"
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2020-04-20 09:55:37 +00:00
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"time"
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2019-07-16 09:07:03 +00:00
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2019-10-04 10:27:47 +00:00
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"git.happydns.org/happydns/api"
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2020-04-19 06:49:30 +00:00
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"git.happydns.org/happydns/config"
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2020-04-05 11:07:42 +00:00
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"git.happydns.org/happydns/storage"
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2020-04-20 09:55:37 +00:00
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leveldb "git.happydns.org/happydns/storage/leveldb"
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2020-04-22 11:12:27 +00:00
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_ "git.happydns.org/happydns/sources/ddns"
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2020-04-28 06:50:02 +00:00
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_ "git.happydns.org/happydns/sources/ovh"
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2019-07-16 09:07:03 +00:00
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)
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type ResponseWriterPrefix struct {
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real http.ResponseWriter
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prefix string
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}
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func (r ResponseWriterPrefix) Header() http.Header {
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return r.real.Header()
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}
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func (r ResponseWriterPrefix) WriteHeader(s int) {
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if v, exists := r.real.Header()["Location"]; exists {
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r.real.Header().Set("Location", r.prefix+v[0])
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}
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r.real.WriteHeader(s)
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}
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func (r ResponseWriterPrefix) Write(z []byte) (int, error) {
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return r.real.Write(z)
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}
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2020-04-19 06:49:30 +00:00
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func StripPrefix(opts *config.Options, h http.Handler) http.Handler {
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2019-07-16 09:07:03 +00:00
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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2020-04-19 06:49:30 +00:00
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// Add in the context's request options
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ctx := r.Context()
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ctx = context.WithValue(ctx, "opts", opts)
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r = r.WithContext(ctx)
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if opts.BaseURL != "" && r.URL.Path == "/" {
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http.Redirect(w, r, opts.BaseURL+"/", http.StatusFound)
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} else if p := strings.TrimPrefix(r.URL.Path, opts.BaseURL); len(p) < len(r.URL.Path) {
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2019-07-16 09:07:03 +00:00
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r2 := new(http.Request)
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*r2 = *r
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r2.URL = new(url.URL)
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*r2.URL = *r.URL
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r2.URL.Path = p
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2020-04-19 06:49:30 +00:00
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h.ServeHTTP(ResponseWriterPrefix{w, opts.BaseURL}, r2)
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2019-07-16 09:07:03 +00:00
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} else {
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h.ServeHTTP(w, r)
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}
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})
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}
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func main() {
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2020-04-19 06:49:30 +00:00
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var err error
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2019-07-16 09:07:03 +00:00
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2020-04-20 09:55:37 +00:00
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rand.Seed(time.Now().UTC().UnixNano())
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2020-04-19 06:49:30 +00:00
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// Load and parse options
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var opts *config.Options
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if opts, err = config.ConsolidateConfig(); err != nil {
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log.Fatal(err)
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2019-07-16 09:07:03 +00:00
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}
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// Initialize contents
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log.Println("Opening database...")
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2020-04-20 09:55:37 +00:00
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if store, err := leveldb.NewLevelDBStorage("happydns.db"); err != nil {
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log.Fatal("Cannot open the database: ", err)
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} else {
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2020-04-20 11:05:11 +00:00
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defer store.Close()
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storage.MainStore = store
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2020-04-20 09:55:37 +00:00
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}
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2020-04-05 11:07:42 +00:00
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log.Println("Do database migrations...")
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2020-04-19 06:49:30 +00:00
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if err = storage.MainStore.DoMigration(); err != nil {
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2020-04-05 11:07:42 +00:00
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log.Fatal("Cannot migrate database: ", err)
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2019-07-16 09:07:03 +00:00
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}
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// Serve content
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2020-04-19 06:49:30 +00:00
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log.Println("Ready, listening on", opts.Bind)
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if err = http.ListenAndServe(opts.Bind, StripPrefix(opts, api.Router())); err != nil {
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2019-07-16 09:07:03 +00:00
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log.Fatal("Unable to listen and serve: ", err)
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}
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}
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