internal/httpd/accounts.go
652 lines · 21868 bytes
1package httpd
2
3import (
4 "fmt"
5 "html/template"
6 "log"
7 "net/http"
8 "path"
9 "slices"
10 "strconv"
11 "strings"
12 "time"
13
14 gossh "golang.org/x/crypto/ssh"
15
16 "gitbay.org/gitbay/internal/control"
17 "gitbay.org/gitbay/internal/gitutil"
18 "gitbay.org/gitbay/internal/policy"
19 "gitbay.org/gitbay/internal/protocol"
20 "gitbay.org/gitbay/internal/store"
21)
22
23const sessionCookie = "gitbay_session"
24
25// sessionSameSite is Lax so a login link followed from a mail client keeps
26// its session through the redirect. Cross-site POSTs are refused by
27// checkOrigin and carry no Lax cookie anyway.
28const sessionSameSite = http.SameSiteLaxMode
29
30// badLoginToken is what every refused /login?token= gets, whatever the
31// reason. The reasons differ in whether the account exists.
32const badLoginToken = "that login link is invalid, expired, or already used — mint a new one"
33
34// viewer returns the logged-in user, or a zero User for anonymous visitors.
35// Only meaningful in accounts mode; in view_only no session route exists so
36// every request is anonymous.
37func (s *Server) viewer(r *http.Request) store.User {
38 ck, err := r.Cookie(sessionCookie)
39 if err != nil {
40 return store.User{}
41 }
42 u, err := s.st.WebSessionUser(store.HashToken(ck.Value))
43 if err != nil {
44 return store.User{}
45 }
46 return u
47}
48
49// requireUser wraps a handler that needs a session.
50func (s *Server) requireUser(h func(http.ResponseWriter, *http.Request, store.User)) http.HandlerFunc {
51 return func(w http.ResponseWriter, r *http.Request) {
52 u := s.viewer(r)
53 if u.ID == 0 {
54 if r.Method == http.MethodGet {
55 s.setNext(w, r.URL.RequestURI())
56 }
57 http.Redirect(w, r, "/login", http.StatusSeeOther)
58 return
59 }
60 h(w, r, u)
61 }
62}
63
64// checkOrigin rejects cross-site POSTs. It is the primary CSRF defense:
65// sessions use SameSite=Lax, which withholds the cookie from a cross-site
66// POST but not from a cross-site top-level GET.
67func (s *Server) checkOrigin(h http.HandlerFunc) http.HandlerFunc {
68 return func(w http.ResponseWriter, r *http.Request) {
69 if origin := r.Header.Get("Origin"); origin != "" && origin != "null" {
70 host := strings.TrimPrefix(strings.TrimPrefix(origin, "https://"), "http://")
71 if host != r.Host {
72 http.Error(w, "cross-origin request refused", http.StatusForbidden)
73 return
74 }
75 }
76 h(w, r)
77 }
78}
79
80// renderLogin draws the login page. Mode carries the registration mode so
81// the page can tell a brand-new visitor how to get an account. EmailLogin
82// says whether this instance can mail a link; Sent switches the page to the
83// confirmation that follows a request.
84func (s *Server) renderLogin(w http.ResponseWriter, errMsg string, sent bool, next string) {
85 s.render(w, "login.html", struct {
86 basePage
87 Mode string // closed | invite | open
88 Error string
89 EmailLogin bool
90 Sent bool
91 Next string
92 }{basePage{Site: s.siteName(), Host: s.cfg.SiteHost()},
93 s.cfg.Registration.Mode, errMsg, s.emailLoginEnabled(), sent, next})
94}
95
96// emailLoginEnabled reports whether a link can be mailed at all. There is no
97// separate switch: the capability is exactly the SMTP the instance already
98// configured for verification and notification mail.
99func (s *Server) emailLoginEnabled() bool {
100 return s.cfg.Web.Mode == "accounts" && s.cfg.Mail.SMTPHost != ""
101}
102
103// loginSubmit mails a one-time login link. The response is the same page
104// whatever happened, including when nothing happened.
105func (s *Server) loginSubmit(w http.ResponseWriter, r *http.Request) {
106 if !s.emailLoginEnabled() {
107 s.notFound(w, r)
108 return
109 }
110 // The per-account bound lives in the store and survives a restart; this
111 // one stops a single source from spending every account's budget.
112 if allowed, wait := s.apiLimit.allow("login"+s.clientIP(r), true); !allowed {
113 w.Header().Set("Retry-After", strconv.Itoa(int(wait.Seconds())+1))
114 http.Error(w, "too many login requests; wait a moment", http.StatusTooManyRequests)
115 return
116 }
117 if err := control.RequestLoginLink(s.cfg, s.st, r.FormValue("identifier")); err != nil {
118 log.Printf("login link: %v", err)
119 }
120 s.renderLogin(w, "", true, "")
121}
122
123func (s *Server) login(w http.ResponseWriter, r *http.Request) {
124 token := r.URL.Query().Get("token")
125 if token == "" {
126 s.renderLogin(w, "", false, s.peekNext(r))
127 return
128 }
129 userID, err := s.st.ConsumeLoginToken(store.HashToken(token))
130 if err != nil {
131 s.renderLogin(w, badLoginToken, false, "")
132 return
133 }
134 // A token minted before the account was suspended is still consumable,
135 // and the session it would create renders every page the account can
136 // read. Checking here covers every mint path. The message is the one a
137 // bad token gets: a distinct one would confirm the account exists.
138 if u, err := s.st.UserByID(userID); err != nil || u.Disabled {
139 s.renderLogin(w, badLoginToken, false, "")
140 return
141 }
142 sessTok, sessHash, err := store.NewToken()
143 if err != nil {
144 http.Error(w, "internal error", http.StatusInternalServerError)
145 return
146 }
147 if err := s.st.CreateWebSession(sessHash, userID, 7*24*time.Hour); err != nil {
148 http.Error(w, "internal error", http.StatusInternalServerError)
149 return
150 }
151 http.SetCookie(w, s.sessionCookieFor(sessTok))
152 dest := s.takeNext(w, r)
153 if dest == "" {
154 dest = "/"
155 }
156 http.Redirect(w, r, dest, http.StatusSeeOther)
157}
158
159// sessionCookieFor is the cookie a new session ships in. Secure follows TLS
160// the way clearCookie does, so a plain-HTTP deployment still works.
161func (s *Server) sessionCookieFor(tok string) *http.Cookie {
162 return &http.Cookie{
163 Name: sessionCookie, Value: tok, Path: "/",
164 HttpOnly: true, SameSite: sessionSameSite,
165 Secure: s.cfg.HTTP.TLS != "off",
166 MaxAge: 7 * 24 * 3600,
167 }
168}
169
170func (s *Server) logout(w http.ResponseWriter, r *http.Request) {
171 if ck, err := r.Cookie(sessionCookie); err == nil {
172 s.st.DeleteWebSession(store.HashToken(ck.Value))
173 }
174 http.SetCookie(w, s.clearCookie(sessionCookie, sessionSameSite))
175 http.Redirect(w, r, "/", http.StatusSeeOther)
176}
177
178// adminOrgs lists organizations the user administers, for owner pickers.
179func (s *Server) adminOrgs(u store.User) []string {
180 var out []string
181 if orgs, err := s.st.ListOrgsForUser(u.ID); err == nil {
182 for _, o := range orgs {
183 if o.Role == "admin" {
184 out = append(out, o.Username)
185 }
186 }
187 }
188 return out
189}
190
191func (s *Server) renderNewRepo(w http.ResponseWriter, u store.User, errMsg string) {
192 s.render(w, "new.html", struct {
193 basePage
194 Orgs []string
195 Error string
196 }{s.baseFor(u), s.adminOrgs(u), errMsg})
197}
198
199func (s *Server) newRepoForm(w http.ResponseWriter, r *http.Request, u store.User) {
200 s.renderNewRepo(w, u, "")
201}
202
203// newSubmit creates a repository or an organization: /new carries both
204// forms, told apart by the org form's field. An organization's page is
205// the redirect, the same as org-create from anywhere else.
206func (s *Server) newSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
207 if r.FormValue("field") == "org-create" {
208 name := strings.TrimSpace(r.FormValue("name"))
209 if _, msg, ok := s.runControl(u, []string{"org", "create", name}); !ok {
210 s.renderNewRepo(w, u, msg)
211 return
212 }
213 http.Redirect(w, r, "/"+name, http.StatusSeeOther)
214 return
215 }
216 owner := r.FormValue("owner")
217 if owner == "" {
218 owner = u.Username
219 }
220 name := r.FormValue("name")
221 argv := []string{"repo", "create", owner + "/" + name}
222 if r.FormValue("visibility") == "private" {
223 argv = append(argv, "--private")
224 }
225 if _, msg, ok := s.runControl(u, argv); !ok {
226 s.renderNewRepo(w, u, msg)
227 return
228 }
229 http.Redirect(w, r, "/"+owner+"/"+name, http.StatusSeeOther)
230}
231
232// pinToggle pins or unpins the repo for the logged-in viewer.
233func (s *Server) pinToggle(w http.ResponseWriter, r *http.Request, u store.User) {
234 repo, ok := s.repoForUser(w, r, u, policy.CanRead)
235 if !ok {
236 return
237 }
238 if s.st.IsPinned(u.ID, repo.ID) {
239 s.st.UnpinRepo(u.ID, repo.ID)
240 } else {
241 s.st.PinRepo(u.ID, repo.ID)
242 }
243 http.Redirect(w, r, "/"+repo.Path(), http.StatusSeeOther)
244}
245
246// bookmarkToggle saves or unsaves a repository for the viewer. Read
247// access is all a bookmark needs — it is something you do to someone
248// else's repository — and repoForUser 404s a private one either way.
249func (s *Server) bookmarkToggle(w http.ResponseWriter, r *http.Request, u store.User) {
250 repo, ok := s.repoForUser(w, r, u, policy.CanRead)
251 if !ok {
252 return
253 }
254 verb := "bookmark"
255 if s.st.IsBookmarked(u.ID, repo.ID) {
256 verb = "unbookmark"
257 }
258 if _, msg, ok := s.runControl(u, []string{"repo", verb, repo.Path()}); !ok {
259 s.setFlash(w, msg)
260 }
261 http.Redirect(w, r, "/"+repo.Path(), http.StatusSeeOther)
262}
263
264// bookmarksPage lists what the viewer has saved.
265func (s *Server) bookmarksPage(w http.ResponseWriter, r *http.Request, u store.User) {
266 var rows []control.BookmarkOut
267 s.runControlInto(u, []string{"repo", "bookmarks"}, &rows)
268 s.render(w, "bookmarks.html", struct {
269 basePage
270 Tab string
271 Bookmarks []control.BookmarkOut
272 }{s.baseFor(u), "bookmarks", rows})
273}
274
275// renderFork draws the fork form: where the copy lands and what it is
276// called. owner and name are what the field should hold, which after a
277// refusal is what was submitted.
278func (s *Server) renderFork(w http.ResponseWriter, u store.User, repo store.Repo, owner, name, errMsg string) {
279 s.render(w, "fork.html", struct {
280 basePage
281 Repo store.Repo
282 Orgs []string
283 Owner string
284 Name string
285 Error string
286 }{s.baseFor(u), repo, s.adminOrgs(u), owner, name, errMsg})
287}
288
289func (s *Server) forkForm(w http.ResponseWriter, r *http.Request, u store.User) {
290 repo, ok := s.repoForUser(w, r, u, policy.CanRead)
291 if !ok {
292 return
293 }
294 s.renderFork(w, u, repo, u.Username, repo.Name, "")
295}
296
297// forkSubmit forks the repository to the owner the form picked and sends
298// them to it. The command decides everything that matters — read access,
299// the right to create under that owner, quota, name collisions — so a
300// refusal comes back as its own message on the form (#174).
301func (s *Server) forkSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
302 repo, ok := s.repoForUser(w, r, u, policy.CanRead)
303 if !ok {
304 return
305 }
306 owner, name := r.FormValue("owner"), r.FormValue("name")
307 if owner == "" {
308 owner = u.Username
309 }
310 if name == "" {
311 name = repo.Name
312 }
313 var fork control.ForkOut
314 argv := []string{"repo", "fork", repo.Path(), "--owner", owner, "--name", name}
315 if msg, ok := s.runControlInto(u, argv, &fork); !ok {
316 s.renderFork(w, u, repo, owner, name, msg)
317 return
318 }
319 http.Redirect(w, r, "/"+fork.Path, http.StatusSeeOther)
320}
321
322// repoForUser is repoFor with a write/read permission requirement for a
323// logged-in user.
324func (s *Server) repoForUser(w http.ResponseWriter, r *http.Request, u store.User,
325 perm func(store.User, store.Repo, string) bool) (store.Repo, bool) {
326 repo, err := s.st.RepoByPath(r.PathValue("owner") + "/" + r.PathValue("repo"))
327 if err != nil {
328 http.NotFound(w, r)
329 return store.Repo{}, false
330 }
331 grant, err := s.st.AccessRole(repo.ID, u.ID)
332 if err != nil {
333 http.Error(w, "internal error", http.StatusInternalServerError)
334 return store.Repo{}, false
335 }
336 if !policy.CanRead(u, repo, grant) {
337 http.NotFound(w, r) // invisible: same as nonexistent
338 return store.Repo{}, false
339 }
340 if !perm(u, repo, grant) {
341 http.Error(w, "permission denied", http.StatusForbidden)
342 return store.Repo{}, false
343 }
344 return repo, true
345}
346
347// signupForm and signupSubmit front the SSH registration path for open
348// and invite instances: same store transactions, same rules, a pasted
349// public key instead of the connecting one.
350func (s *Server) signupForm(w http.ResponseWriter, r *http.Request) {
351 s.renderSignup(w, "", "")
352}
353
354func (s *Server) renderSignup(w http.ResponseWriter, errMsg, username string) {
355 s.render(w, "register.html", struct {
356 basePage
357 Host string
358 Mode string // open | invite
359 Error string
360 Username string
361 }{basePage{Site: s.siteName(), Host: s.cfg.SiteHost()}, s.cfg.SiteHost(), s.cfg.Registration.Mode, errMsg, username})
362}
363
364func (s *Server) signupSubmit(w http.ResponseWriter, r *http.Request) {
365 username := strings.TrimSpace(r.FormValue("username"))
366 keyText := strings.TrimSpace(r.FormValue("key"))
367 pub, _, _, _, err := gossh.ParseAuthorizedKey([]byte(keyText))
368 if err != nil {
369 s.renderSignup(w, "that does not parse as an SSH public key (expected e.g. \"ssh-ed25519 AAAA... comment\")", username)
370 return
371 }
372 msg, errMsg, code := control.RegisterAccount(s.cfg, s.st, pub, username,
373 strings.TrimSpace(r.FormValue("email")), strings.TrimSpace(r.FormValue("invite")))
374 if code != 0 {
375 s.renderSignup(w, errMsg, username)
376 return
377 }
378 s.render(w, "registered.html", struct {
379 basePage
380 Username string
381 Message string
382 Host string
383 }{basePage{Site: s.siteName(), Host: s.cfg.SiteHost()}, username, msg, s.cfg.SiteHost()})
384}
385
386// issueCreateForm renders the new-issue form, prefilled from the repo's
387// default issue template when one exists. A Preview submit comes back
388// here with the draft in the form, so the page returns with everything
389// still typed and the rendering above the textarea (#235).
390func (s *Server) issueCreateForm(w http.ResponseWriter, r *http.Request, u store.User) {
391 p, ok := s.repoFor(w, r, "")
392 if !ok {
393 return
394 }
395 p.Tab = "issues"
396 if wantsPreview(r) {
397 d := s.draftFor(r, p.Repo, "body", "body", bodyFormat(r))
398 s.render(w, "issuenew.html", struct {
399 repoPage
400 Body string
401 Format string
402 Title string
403 Labels string
404 Template string
405 Templates []control.IssueTemplate
406 Draft *draft
407 }{p, d.Body, d.Format, r.FormValue("title"), r.FormValue("labels"),
408 "", control.IssueTemplates(p.Dir, p.Repo.DefaultBranch), d})
409 return
410 }
411 templates := control.IssueTemplates(p.Dir, p.Repo.DefaultBranch)
412 body, tplName := "", ""
413 if want := r.URL.Query().Get("template"); want != "" {
414 for _, t := range templates {
415 if t.Name == want {
416 body, tplName = t.Body, t.Name
417 }
418 }
419 } else {
420 for _, t := range templates {
421 if t.Name == "issue-template.md" || body == "" {
422 body, tplName = t.Body, t.Name
423 }
424 if t.Name == "issue-template.md" {
425 break
426 }
427 }
428 }
429 format := r.URL.Query().Get("format")
430 if format != "org" {
431 format = "md"
432 }
433 s.render(w, "issuenew.html", struct {
434 repoPage
435 Body string
436 Format string
437 Title string
438 Labels string
439 Template string
440 Templates []control.IssueTemplate
441 Draft *draft
442 }{p, body, format, "", "", tplName, templates, nil})
443}
444
445// Issue and merge request writes run the command the CLI runs, so the
446// archived check, notifications, body format and the audit entry have one
447// implementation. Bodies travel on stdin, the way --file - does.
448
449func (s *Server) issueCreateSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
450 repoPath := r.PathValue("owner") + "/" + r.PathValue("repo")
451 title := strings.TrimSpace(r.FormValue("title"))
452 format := bodyFormat(r)
453 if wantsPreview(r) {
454 s.issueCreateForm(w, r, u)
455 return
456 }
457 var created control.Created
458 argv := []string{"issue", "create", repoPath, "--title", title, "--format", format, "--file", "-"}
459 code, msg := s.dispatchIntoStdin(u, argv, r.FormValue("body"), &created)
460 if code != protocol.ExitOK {
461 http.Error(w, msg, statusForExit(code))
462 return
463 }
464 n := created.Number
465 // Labels need write access, matching the SSH rule; the command refuses
466 // otherwise and the issue stands without them.
467 if args := fieldArgs("--add", r.FormValue("labels")); len(args) > 0 {
468 s.runControl(u, append([]string{"issue", "label", repoPath, fmt.Sprint(n)}, args...))
469 }
470 http.Redirect(w, r, fmt.Sprintf("/%s/issues/%d", repoPath, n), http.StatusSeeOther)
471}
472
473// issueEditSubmit edits title/body (author or write) and, with write
474// access, replaces the label set.
475func (s *Server) issueEditSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
476 repoPath := r.PathValue("owner") + "/" + r.PathValue("repo")
477 n := r.PathValue("n")
478 if wantsPreview(r) {
479 s.issuePage(w, r, "edit")
480 return
481 }
482 title := strings.TrimSpace(r.FormValue("title"))
483 code, msg := s.dispatchJSON(u, []string{"issue", "edit", repoPath, n, "--title", title, "--file", "-"}, r.FormValue("body"))
484 if code != protocol.ExitOK {
485 http.Error(w, msg, statusForExit(code))
486 return
487 }
488 var cur struct {
489 Labels []string `json:"labels"`
490 }
491 if _, ok := s.runControlInto(u, []string{"issue", "show", repoPath, n}, &cur); ok {
492 want := strings.Fields(r.FormValue("labels"))
493 var args []string
494 for _, l := range cur.Labels {
495 if !slices.Contains(want, l) {
496 args = append(args, "--remove", l)
497 }
498 }
499 for _, l := range want {
500 if !slices.Contains(cur.Labels, l) {
501 args = append(args, "--add", l)
502 }
503 }
504 if len(args) > 0 {
505 s.runControl(u, append([]string{"issue", "label", repoPath, n}, args...))
506 }
507 }
508 http.Redirect(w, r, fmt.Sprintf("/%s/issues/%s", repoPath, n), http.StatusSeeOther)
509}
510
511// mrEditSubmit edits an MR's title/body (author or write).
512func (s *Server) mrEditSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
513 repoPath := r.PathValue("owner") + "/" + r.PathValue("repo")
514 n := r.PathValue("n")
515 if wantsPreview(r) {
516 s.mrPage(w, r, "edit")
517 return
518 }
519 title := strings.TrimSpace(r.FormValue("title"))
520 code, msg := s.dispatchJSON(u, []string{"mr", "edit", repoPath, n, "--title", title, "--file", "-"}, r.FormValue("body"))
521 if code != protocol.ExitOK {
522 http.Error(w, msg, statusForExit(code))
523 return
524 }
525 http.Redirect(w, r, fmt.Sprintf("/%s/mrs/%s", repoPath, n), http.StatusSeeOther)
526}
527
528func (s *Server) issueCommentSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
529 if wantsPreview(r) {
530 s.issuePage(w, r, "comment")
531 return
532 }
533 s.commentSubmit(w, r, u, "issue", "issues")
534}
535
536func (s *Server) mrCommentSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
537 if wantsPreview(r) {
538 s.mrPage(w, r, "comment")
539 return
540 }
541 s.commentSubmit(w, r, u, "mr", "mrs")
542}
543
544func (s *Server) commentSubmit(w http.ResponseWriter, r *http.Request, u store.User, noun, segment string) {
545 repoPath := r.PathValue("owner") + "/" + r.PathValue("repo")
546 n := r.PathValue("n")
547 code, msg := s.dispatchJSON(u, []string{noun, "comment", repoPath, n, "--file", "-"}, strings.TrimSpace(r.FormValue("body")))
548 if code != protocol.ExitOK {
549 http.Error(w, msg, statusForExit(code))
550 return
551 }
552 http.Redirect(w, r, fmt.Sprintf("/%s/%s/%s", repoPath, segment, n), http.StatusSeeOther)
553}
554
555type editPage struct {
556 basePage
557 Repo store.Repo
558 Ref string
559 Path string
560 Content string
561 Error string
562 Blocked string
563 // Creating marks a path the branch does not have yet.
564 Creating bool
565 // Markup is set for a path the forge renders, which is where a
566 // Preview button makes sense; Draft holds one when asked for (#235).
567 Markup bool
568 Draft *draft
569 Nav fileNav
570}
571
572func (s *Server) editForm(w http.ResponseWriter, r *http.Request, u store.User) {
573 repo, ok := s.repoForUser(w, r, u, policy.CanWrite)
574 if !ok {
575 return
576 }
577 ref := r.PathValue("ref")
578 filePath := strings.Trim(r.PathValue("path"), "/")
579
580 blocked := ""
581 switch {
582 case repo.Settings.RequireSignedCommits:
583 blocked = repo.Path() + " requires signed commits and the web editor cannot sign; edit locally and push a signed commit."
584 case repo.Settings.RequireMR && slices.Contains(repo.Settings.ProtectedBranches, ref):
585 blocked = "branch " + ref + " accepts changes through merge requests only; edit on another branch and open one."
586 }
587
588 dir := control.RepoDir(s.cfg.Server.Root, repo.OwnerName, repo.Name)
589 // A branch that does not exist has nothing to edit. A path that does
590 // not exist on a real branch is a new file: commit-file creates it.
591 if _, err := gitutil.ResolveRef(dir, "refs/heads/"+ref); err != nil {
592 s.notFound(w, r)
593 return
594 }
595 content, err := gitutil.ReadBlob(dir, "refs/heads/"+ref, filePath, maxRenderBytes)
596 creating := err != nil
597 if creating {
598 content = nil
599 }
600 if gitutil.IsBinary(content) {
601 http.Error(w, "binary files cannot be edited in the browser", http.StatusBadRequest)
602 return
603 }
604 navEntries, _ := gitutil.ListTree(dir, "refs/heads/"+ref, navDir(filePath))
605 nav := fileNavFor(repo.Path(), ref, filePath, navEntries)
606 s.render(w, "edit.html", editPage{
607 basePage: s.baseFor(u), Repo: repo,
608 Ref: ref, Path: filePath, Content: string(content), Blocked: blocked, Creating: creating,
609 Markup: markupFile(filePath),
610 Nav: nav,
611 })
612}
613
614func (s *Server) editSubmit(w http.ResponseWriter, r *http.Request, u store.User) {
615 repo, ok := s.repoForUser(w, r, u, policy.CanWrite)
616 if !ok {
617 return
618 }
619 ref := r.PathValue("ref")
620 filePath := strings.Trim(r.PathValue("path"), "/")
621
622 // Preview: the file as the blob page will render it, above the
623 // editor, with nothing committed. Only for paths the forge renders.
624 if wantsPreview(r) && markupFile(filePath) {
625 content := r.FormValue("content")
626 d := s.draftWith(r, "content", "", content, func(raw, _ string) template.HTML {
627 return renderReadme(path.Base(filePath), []byte(raw))
628 })
629 s.render(w, "edit.html", editPage{
630 basePage: s.baseFor(u), Repo: repo,
631 Ref: ref, Path: filePath, Content: content, Markup: true, Draft: d,
632 })
633 return
634 }
635
636 // Editing is a control command; the web supplies the form and lets
637 // the registry enforce the rules — signed-commit policy, verified
638 // identity, archived repositories — so every surface agrees on them.
639 argv := []string{"repo", "commit-file", repo.Path(), filePath, "--ref", ref, "--file", "-"}
640 if message := strings.TrimSpace(r.FormValue("message")); message != "" {
641 argv = append(argv, "--message", message)
642 }
643 if msg, ok := s.runControlStdin(u, argv, r.FormValue("content")); !ok {
644 s.render(w, "edit.html", editPage{
645 basePage: s.baseFor(u), Repo: repo,
646 Ref: ref, Path: filePath, Content: r.FormValue("content"), Error: msg,
647 Markup: markupFile(filePath),
648 })
649 return
650 }
651 http.Redirect(w, r, fmt.Sprintf("/%s/blob/%s/%s", repo.Path(), ref, filePath), http.StatusSeeOther)
652}