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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"git.happydns.org/happydns/storage"
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leveldb "git.happydns.org/happydns/storage/leveldb"
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mysql "git.happydns.org/happydns/storage/mysql"
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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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// 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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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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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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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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if store, err := mysql.NewMySQLStorage(opts.DSN); err != nil {
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2019-07-16 09:07:03 +00:00
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log.Fatal("Cannot open the database: ", err)
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2020-04-05 11:07:42 +00:00
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} else {
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storage.MainStore = store
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2019-07-16 09:07:03 +00:00
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}
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defer storage.MainStore.Close()
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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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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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storage.UsersStore = store
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}
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defer storage.UsersStore.Close()
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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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if err = storage.MainStore.DoMigration(); err != nil {
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log.Fatal("Cannot migrate database: ", err)
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}
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2020-04-20 09:55:37 +00:00
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if err = storage.UsersStore.DoMigration(); err != nil {
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log.Fatal("Cannot migrate users database: ", err)
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}
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2019-07-16 09:07:03 +00:00
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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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