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forked from sm/vain
vain/server.go
stephen mcquay 501631a45a Don't require user to set YSV_HOST
The original reason for having this required configuration parameter was that
I didn't think to read the hostname off the request. Doing it this way has the
additional benefit of a single server being able to serve a multitude of
hostnames.

Derek helped me realize this by repeating "there should be sane defaults" like
9000 times (maybe over 9000) till I got so tired of trying to make sure that he
understood why I did it that way to begin with that I looked at the problem
from a different perspective and like in a dream the solution came to me.

fixes #10.
2016-02-16 23:22:33 -08:00

59 lines
1.5 KiB
Go

package vain
import (
"encoding/json"
"fmt"
"net/http"
"strings"
)
// NewServer populates a server, adds the routes, and returns it for use.
func NewServer(sm *http.ServeMux, store Storage) *Server {
s := &Server{
storage: store,
}
sm.Handle("/", s)
return s
}
// Server serves up the http.
type Server struct {
storage Storage
}
func (s *Server) ServeHTTP(w http.ResponseWriter, req *http.Request) {
switch req.Method {
case "GET":
fmt.Fprintf(w, "<!DOCTYPE html>\n<html><head>\n")
for _, p := range s.storage.All() {
fmt.Fprintf(w, "%s\n", p)
}
fmt.Fprintf(w, "</head>\n</html>\n")
case "POST":
if req.URL.Path == "/" {
http.Error(w, fmt.Sprintf("invalid path %q", req.URL.Path), http.StatusBadRequest)
return
}
p := Package{}
if err := json.NewDecoder(req.Body).Decode(&p); err != nil {
http.Error(w, fmt.Sprintf("unable to parse json from body: %v", err), http.StatusBadRequest)
return
}
if p.Repo == "" {
http.Error(w, fmt.Sprintf("invalid repository %q", req.URL.Path), http.StatusBadRequest)
return
}
p.path = fmt.Sprintf("%s/%s", req.Host, strings.Trim(req.URL.Path, "/"))
if !Valid(p.path, s.storage.All()) {
http.Error(w, fmt.Sprintf("invalid path; prefix already taken %q", req.URL.Path), http.StatusConflict)
return
}
if err := s.storage.Add(p); err != nil {
http.Error(w, fmt.Sprintf("unable to add package: %v", err), http.StatusInternalServerError)
return
}
default:
http.Error(w, fmt.Sprintf("unsupported method %q; accepted: POST, GET", req.Method), http.StatusMethodNotAllowed)
}
}