build and ready for demo
login screen
This commit is contained in:
Daniel Noulet
parent
0ae2dc3888
commit
6af2853faa
33 changed files with 2020 additions and 1221 deletions
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@ -1,54 +1,96 @@
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package web
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import (
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"context"
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"encoding/json"
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"fmt"
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"io/fs"
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"net/http"
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"strings"
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"github.com/example/cms/internal/domain"
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"github.com/example/cms/internal/security"
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"github.com/example/cms/internal/service"
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)
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// Handler serves the CMS API. Reading content is anonymous; every mutation
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// requires the identity asserted by the upstream SSO proxy.
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// Handler serves the CMS API and the embedded React app from one binary.
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// Reading content is anonymous; every mutation requires the identity asserted by
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// the upstream SSO proxy.
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type Handler struct {
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content service.IContentService
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assets fs.FS
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sso security.ITokenVerifier
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demo *service.DemoAuth
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}
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func NewHandler(content service.IContentService, sso security.ITokenVerifier) *Handler {
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return &Handler{content: content, sso: sso}
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func NewHandler(content service.IContentService, assets fs.FS, sso security.ITokenVerifier, demo ...*service.DemoAuth) *Handler {
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h := &Handler{content: content, assets: assets, sso: sso}
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if len(demo) > 0 {
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h.demo = demo[0]
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}
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return h
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}
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func (h *Handler) Routes(origins string) http.Handler {
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mux := http.NewServeMux()
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mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) { jsonWrite(w, 200, map[string]string{"status": "ok"}) })
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mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
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jsonWrite(w, http.StatusOK, map[string]string{"status": "ok"})
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})
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mux.HandleFunc("/api/auth/session", h.session)
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mux.HandleFunc("/api/auth/sudo", h.sudo)
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mux.HandleFunc("/api/auth/users", h.users)
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mux.HandleFunc("/api/protected", h.protected)
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mux.HandleFunc("/api/test/protected", h.protected)
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mux.HandleFunc("/api/content", h.contentList)
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mux.HandleFunc("/api/content/categories", h.contentCategories)
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mux.HandleFunc("/api/content/badges", h.contentBadges)
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mux.HandleFunc("/api/content/", h.contentDetail)
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mux.HandleFunc("/", h.singlePageApp)
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return cors(mux, origins, h.sso.HeaderName())
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}
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func (h *Handler) session(w http.ResponseWriter, r *http.Request) {
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authenticated := h.sso.Authenticated(r)
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jsonWrite(w, http.StatusOK, map[string]any{"authenticated": authenticated, "canEdit": authenticated})
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username, authenticated := h.identity(r)
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jsonWrite(w, http.StatusOK, map[string]any{"authenticated": authenticated, "canEdit": authenticated, "username": username})
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}
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func (h *Handler) protected(w http.ResponseWriter, r *http.Request) {
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if !h.sso.Authenticated(r) {
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jsonWrite(w, 401, map[string]string{"error": "authentication required"})
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if _, ok := h.identity(r); !ok {
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jsonWrite(w, http.StatusUnauthorized, map[string]string{"error": "authentication required"})
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return
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}
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jsonWrite(w, 200, map[string]string{"status": "authenticated"})
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jsonWrite(w, http.StatusOK, map[string]string{"status": "authenticated"})
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}
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func (h *Handler) contentList(w http.ResponseWriter, r *http.Request) {
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if h.content == nil {
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jsonWrite(w, 503, map[string]string{"error": "content unavailable"})
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func (h *Handler) users(w http.ResponseWriter, r *http.Request) {
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if h.demo == nil || r.Method != http.MethodGet {
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http.NotFound(w, r)
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return
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}
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jsonWrite(w, http.StatusOK, map[string]any{"items": h.demo.Users()})
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}
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func (h *Handler) sudo(w http.ResponseWriter, r *http.Request) {
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if h.demo == nil || r.Method != http.MethodPost {
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http.NotFound(w, r)
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return
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}
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var input struct {
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Username string `json:"username"`
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Password string `json:"password"`
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}
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if !decode(r, &input) {
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jsonWrite(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON"})
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return
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}
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token, user, err := h.demo.Login(input.Username, input.Password)
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if err != nil {
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jsonWrite(w, http.StatusUnauthorized, map[string]string{"error": "invalid demo credentials"})
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return
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}
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jsonWrite(w, http.StatusOK, map[string]any{"token": token, "user": user})
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}
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func (h *Handler) contentList(w http.ResponseWriter, r *http.Request) {
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if r.Method != http.MethodGet {
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jsonWrite(w, http.StatusMethodNotAllowed, nil)
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return
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@ -58,94 +100,128 @@ func (h *Handler) contentList(w http.ResponseWriter, r *http.Request) {
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_, _ = fmt.Sscanf(r.URL.Query().Get("offset"), "%d", &offset)
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badges := r.URL.Query()["badge"]
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if len(badges) == 0 {
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badges = strings.Split(strings.TrimSpace(r.URL.Query().Get("badges")), ",")
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badges = strings.Split(r.URL.Query().Get("badges"), ",")
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}
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filtered := badges[:0]
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for _, badge := range badges {
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if badge = strings.TrimSpace(strings.ToLower(badge)); badge != "" {
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filtered = append(filtered, badge)
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}
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}
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items, e := h.content.List(r.Context(), limit, offset,
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strings.TrimSpace(strings.ToLower(r.URL.Query().Get("category"))),
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strings.TrimSpace(strings.ToLower(r.URL.Query().Get("status"))),
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filtered,
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items, err := h.content.List(r.Context(), limit, offset,
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r.URL.Query().Get("category"),
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r.URL.Query().Get("status"),
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badges,
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)
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if e != nil {
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jsonWrite(w, 500, map[string]string{"error": e.Error()})
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if err != nil {
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jsonWrite(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
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return
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}
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jsonWrite(w, 200, map[string]any{"items": items, "limit": limit, "offset": offset})
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jsonWrite(w, http.StatusOK, map[string]any{"items": items, "limit": limit, "offset": offset})
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}
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func (h *Handler) contentCategories(w http.ResponseWriter, r *http.Request) {
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if h.content == nil {
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jsonWrite(w, 503, map[string]string{"error": "content unavailable"})
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return
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}
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if r.Method != http.MethodGet {
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jsonWrite(w, http.StatusMethodNotAllowed, nil)
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return
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}
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categories, err := h.content.ListCategories(r.Context())
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if err != nil {
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jsonWrite(w, 500, map[string]string{"error": err.Error()})
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jsonWrite(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
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return
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}
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jsonWrite(w, 200, map[string]any{"items": categories})
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jsonWrite(w, http.StatusOK, map[string]any{"items": categories})
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}
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func (h *Handler) contentBadges(w http.ResponseWriter, r *http.Request) {
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if h.content == nil {
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jsonWrite(w, 503, map[string]string{"error": "content unavailable"})
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return
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}
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if r.Method != http.MethodGet {
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jsonWrite(w, http.StatusMethodNotAllowed, nil)
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return
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}
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badges, err := h.content.ListBadges(r.Context())
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if err != nil {
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jsonWrite(w, 500, map[string]string{"error": err.Error()})
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jsonWrite(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
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return
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}
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jsonWrite(w, 200, map[string]any{"items": badges})
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jsonWrite(w, http.StatusOK, map[string]any{"items": badges})
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}
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func (h *Handler) contentDetail(w http.ResponseWriter, r *http.Request) {
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if h.content == nil {
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jsonWrite(w, 503, map[string]string{"error": "content unavailable"})
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return
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}
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slug := strings.TrimPrefix(r.URL.Path, "/api/content/")
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if r.Method == http.MethodGet {
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c, e := h.content.Get(r.Context(), slug)
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if e != nil {
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jsonWrite(w, 404, map[string]string{"error": "content not found"})
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switch r.Method {
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case http.MethodGet:
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item, err := h.content.Get(r.Context(), slug)
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if err != nil {
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jsonWrite(w, http.StatusNotFound, map[string]string{"error": "content not found"})
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return
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}
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jsonWrite(w, 200, c)
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return
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jsonWrite(w, http.StatusOK, item)
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case http.MethodPut:
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username, authenticated := h.identity(r)
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if !authenticated {
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jsonWrite(w, http.StatusUnauthorized, map[string]string{"error": "authentication required"})
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return
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}
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var item service.Content
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if !decode(r, &item) {
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jsonWrite(w, http.StatusBadRequest, map[string]string{"error": "invalid JSON"})
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return
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}
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item.Slug = slug
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var saved service.Content
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var err error
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if owned, ok := h.content.(interface {
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UpdateAs(context.Context, service.Content, string) (service.Content, error)
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}); ok {
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saved, err = owned.UpdateAs(r.Context(), item, username)
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} else {
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saved, err = h.content.Update(r.Context(), item)
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}
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if err != nil {
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jsonWrite(w, http.StatusBadRequest, map[string]string{"error": err.Error()})
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return
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}
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jsonWrite(w, http.StatusOK, saved)
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default:
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jsonWrite(w, http.StatusMethodNotAllowed, nil)
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}
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if r.Method != http.MethodPut {
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jsonWrite(w, 405, nil)
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return
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}
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if !h.sso.Authenticated(r) {
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jsonWrite(w, 401, map[string]string{"error": "authentication required"})
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return
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}
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var c domain.Content
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if !decode(r, &c) {
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jsonWrite(w, 400, map[string]string{"error": "invalid JSON"})
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return
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}
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c.Slug = slug
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out, e := h.content.Update(r.Context(), c)
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if e != nil {
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jsonWrite(w, 400, map[string]string{"error": e.Error()})
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return
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}
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jsonWrite(w, 200, out)
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}
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func (h *Handler) identity(r *http.Request) (string, bool) {
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if h.demo != nil {
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token := strings.TrimSpace(strings.TrimPrefix(r.Header.Get("Authorization"), "Bearer "))
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if username, ok := h.demo.Authenticated(token); ok {
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return username, true
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}
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}
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if h.sso.Authenticated(r) {
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return "sso-owner", true
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}
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return "", false
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}
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// singlePageApp serves the embedded build and falls back to index.html so the
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// client-side router owns every non-API path.
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func (h *Handler) singlePageApp(w http.ResponseWriter, r *http.Request) {
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if h.assets == nil {
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http.NotFound(w, r)
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return
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}
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name := strings.TrimPrefix(r.URL.Path, "/")
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if name != "" {
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if file, err := h.assets.Open(name); err == nil {
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_ = file.Close()
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http.FileServer(http.FS(h.assets)).ServeHTTP(w, r)
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return
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}
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}
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index, err := fs.ReadFile(h.assets, "index.html")
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if err != nil {
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http.NotFound(w, r)
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return
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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w.Header().Set("Cache-Control", "no-cache")
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_, _ = w.Write(index)
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}
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func decode(r *http.Request, v any) bool { return json.NewDecoder(r.Body).Decode(v) == nil }
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func jsonWrite(w http.ResponseWriter, status int, v any) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(status)
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@ -153,6 +229,7 @@ func jsonWrite(w http.ResponseWriter, status int, v any) {
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_ = json.NewEncoder(w).Encode(v)
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}
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}
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func cors(next http.Handler, origin, ssoHeader string) http.Handler {
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allowed := "Content-Type, Authorization"
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if ssoHeader != "" && !strings.EqualFold(ssoHeader, "Authorization") {
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@ -164,7 +241,7 @@ func cors(next http.Handler, origin, ssoHeader string) http.Handler {
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w.Header().Set("Access-Control-Allow-Headers", allowed)
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w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, OPTIONS")
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if r.Method == http.MethodOptions {
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w.WriteHeader(204)
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w.WriteHeader(http.StatusNoContent)
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return
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}
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next.ServeHTTP(w, r)
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