vanity/router/router.go

209 lines
4.9 KiB
Go

package router
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
"time"
"go.jolheiser.com/vanity/cmd/flags"
"go.jolheiser.com/vanity/database"
"go.jolheiser.com/vanity/go-vanity"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
"go.jolheiser.com/beaver"
)
func New(token string, db *database.Database) *chi.Mux {
r := chi.NewRouter()
r.Use(middleware.RedirectSlashes)
r.Use(middleware.Recoverer)
r.Use(middleware.Timeout(60 * time.Second))
r.Get("/", indexGET(db))
r.Options("/", infoPackages(db))
r.Post("/", addUpdatePackage(db, token))
r.Patch("/", addUpdatePackage(db, token))
r.Delete("/", removePackage(db, token))
r.Get("/*", vanityGET(db))
return r
}
func indexGET(db *database.Database) http.HandlerFunc {
return func(res http.ResponseWriter, req *http.Request) {
packages, err := db.Packages()
if err != nil {
beaver.Errorf("could not load packages: %v", err)
http.Error(res, "could not load packages", http.StatusInternalServerError)
return
}
tpl, err := tmpl("index.tmpl")
if err != nil {
beaver.Warnf("could not load index template: %v", err)
}
if err := tpl.Execute(res, map[string]interface{}{
"Packages": packages,
"Index": true,
}); err != nil {
beaver.Errorf("could not write response: %v", err)
}
}
}
func vanityGET(db *database.Database) http.HandlerFunc {
return func(res http.ResponseWriter, req *http.Request) {
key := chi.URLParam(req, "*")
key = strings.Split(key, "/")[0]
pkg, err := db.Package(key)
if err != nil {
if database.IsErrPackageNotFound(err) {
http.NotFound(res, req)
return
}
http.Error(res, "could not load package", http.StatusInternalServerError)
return
}
sdf, err := vanity.AnalyzeSDF(pkg)
if err != nil {
beaver.Warnf("could not get SDF for %s: %v", key, err)
}
ctx := map[string]interface{}{
"Package": pkg,
"Module": pkg.Module(flags.Domain),
"GoSource": fmt.Sprintf("%s %s %s %s", pkg.Module(flags.Domain), pkg.CloneHTTP, sdf.Dir, sdf.File),
"Index": false,
}
q := req.URL.Query()
if q.Get("go-get") != "" || q.Get("git-import") != "" {
tpl, err := tmpl("import.tmpl")
if err != nil {
beaver.Warnf("could not load import template: %v", err)
}
if err := tpl.Execute(res, ctx); err != nil {
beaver.Errorf("could not write response: %v", err)
}
return
}
tpl, err := tmpl("vanity.tmpl")
if err != nil {
beaver.Warnf("could not load vanity template: %v", err)
}
if err := tpl.Execute(res, ctx); err != nil {
beaver.Errorf("could not write response: %v", err)
}
}
}
func infoPackages(db *database.Database) func(http.ResponseWriter, *http.Request) {
return func(res http.ResponseWriter, req *http.Request) {
packages, err := db.Packages()
if err != nil {
http.Error(res, "could not load package", http.StatusInternalServerError)
return
}
info := vanity.Info{
Version: Version,
NumPackages: len(packages),
Packages: packages,
}
if err := json.NewEncoder(res).Encode(info); err != nil {
http.Error(res, "could not marshal info", http.StatusInternalServerError)
}
}
}
func addUpdatePackage(db *database.Database, token string) func(http.ResponseWriter, *http.Request) {
return func(res http.ResponseWriter, req *http.Request) {
if req.Header.Get(vanity.TokenHeader) != token {
res.WriteHeader(http.StatusUnauthorized)
return
}
data, err := io.ReadAll(req.Body)
if err != nil {
res.WriteHeader(http.StatusBadRequest)
return
}
defer req.Body.Close()
var pkg vanity.Package
if err := json.Unmarshal(data, &pkg); err != nil {
res.WriteHeader(http.StatusBadRequest)
return
}
exists, err := db.PackageJSON(pkg.Name)
if err != nil && !database.IsErrPackageNotFound(err) {
res.WriteHeader(http.StatusInternalServerError)
return
}
switch req.Method {
case http.MethodPost:
if exists != nil {
res.WriteHeader(http.StatusConflict)
return
}
case http.MethodPatch:
if exists == nil {
res.WriteHeader(http.StatusNotFound)
return
}
}
if err := db.PutPackage(pkg); err != nil {
res.WriteHeader(http.StatusInternalServerError)
return
}
switch req.Method {
case http.MethodPost:
res.WriteHeader(http.StatusCreated)
case http.MethodPatch:
res.WriteHeader(http.StatusOK)
}
}
}
func removePackage(db *database.Database, token string) func(http.ResponseWriter, *http.Request) {
return func(res http.ResponseWriter, req *http.Request) {
if req.Header.Get(vanity.TokenHeader) != token {
res.WriteHeader(http.StatusUnauthorized)
return
}
data, err := io.ReadAll(req.Body)
if err != nil {
res.WriteHeader(http.StatusBadRequest)
return
}
defer req.Body.Close()
var pkg vanity.Package
if err := json.Unmarshal(data, &pkg); err != nil {
res.WriteHeader(http.StatusBadRequest)
return
}
if err := db.RemovePackage(pkg.Name); err != nil {
res.WriteHeader(http.StatusInternalServerError)
return
}
res.WriteHeader(http.StatusOK)
}
}