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Use generate static assets, and allow to develop through proxy

This commit is contained in:
nemunaire 2019-09-09 17:04:21 +02:00
parent addf0e96a1
commit a5e7f79b18
3 changed files with 137 additions and 11 deletions
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3
.gitignore vendored
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@ -1 +1,2 @@
libredns
libredns
bindata.go

2
main.go
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@ -53,11 +53,11 @@ func StripPrefix(prefix string, h http.Handler) http.Handler {
func main() {
// Read parameters from command line
flag.StringVar(&DevProxy, "dev", DevProxy, "Proxify traffic to this host for static assets")
var bind = flag.String("bind", ":8081", "Bind port/socket")
var dsn = flag.String("dsn", DSNGenerator(), "DSN to connect to the MySQL server")
var baseURL = flag.String("baseurl", "/", "URL prepended to each URL")
flag.StringVar(&api.DefaultNameServer, "defaultns", api.DefaultNameServer, "Adress to the default name server")
flag.StringVar(&StaticDir, "static", StaticDir, "Directory containing static files")
flag.Parse()
// Sanitize options

143
static.go
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@ -1,7 +1,10 @@
package main
import (
"fmt"
"io"
"net/http"
"net/url"
"path"
"git.nemunai.re/libredns/api"
@ -9,29 +12,151 @@ import (
"github.com/julienschmidt/httprouter"
)
var StaticDir = "./htdocs/"
//go:generate yarn --cwd htdocs --offline build
//go:generate go-bindata -ignore "\\.go|\\.less" -pkg "main" -o "bindata.go" htdocs/dist/...
//go:generate go fmt bindata.go
const StaticDir string = "htdocs/dist"
var DevProxy string
func init() {
api.Router().GET("/", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, "index.html"))
if DevProxy == "" {
if data, err := Asset("htdocs/dist/index.html"); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/zones/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, "index.html"))
if DevProxy == "" {
if data, err := Asset("htdocs/dist/index.html"); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
r.URL.Path = "/"
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/css/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, r.URL.Path))
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/fonts/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, r.URL.Path))
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/img/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, r.URL.Path))
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/js/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, r.URL.Path))
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Header().Set("Content-Type", "text/javascript")
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/views/*_", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
http.ServeFile(w, r, path.Join(StaticDir, r.URL.Path))
api.Router().GET("/favicon.ico", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/manifest.json", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Header().Set("Content-Type", "application/json")
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/robots.txt", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
api.Router().GET("/service-worker.js", func(w http.ResponseWriter, r *http.Request, ps httprouter.Params) {
if DevProxy == "" {
if data, err := Asset(path.Join(StaticDir, r.URL.Path)); err != nil {
fmt.Fprintf(w, "{\"errmsg\":%q}", err)
} else {
w.Header().Set("Content-Type", "text/javascript")
w.Write(data)
}
} else {
fwd_request(w, r, DevProxy)
}
})
}
func fwd_request(w http.ResponseWriter, r *http.Request, fwd string) {
if u, err := url.Parse(fwd); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
u.Path = path.Join(u.Path, r.URL.Path)
if r, err := http.NewRequest(r.Method, u.String(), r.Body); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else if resp, err := http.DefaultClient.Do(r); err != nil {
http.Error(w, err.Error(), http.StatusBadGateway)
} else {
defer resp.Body.Close()
for key := range resp.Header {
w.Header().Add(key, resp.Header.Get(key))
}
w.WriteHeader(resp.StatusCode)
io.Copy(w, resp.Body)
}
}
}