vole
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A free and open-source forge that lives in your Git repo.
Merge change request 01M70WES5ZZDJ6RP226WB11BBZ: Let people rename and remove their own passkeys
keenan · 59m ago
4b8c9e1d
| 1 | package web |
| 2 | |
| 3 | import ( |
| 4 | "errors" |
| 5 | "net/http" |
| 6 | "strings" |
| 7 | |
| 8 | "rodent.software/vole/forge/identity" |
| 9 | ) |
| 10 | |
| 11 | // AddAccountKey lets a signed-in person attach an SSH public key without an |
| 12 | // instance admin. Open registration is only useful for Git contributions if the |
| 13 | // account can turn its browser session into a key that pushes. |
| 14 | func (w *Web) AddAccountKey(rw http.ResponseWriter, r *http.Request) { |
| 15 | pr, ok := w.beginPost(rw, r, maxTinyForm) |
| 16 | if !ok { |
| 17 | return |
| 18 | } |
| 19 | key := strings.TrimSpace(r.PostFormValue("key")) |
| 20 | if key == "" { |
| 21 | http.Error(rw, "paste an SSH public key", http.StatusBadRequest) |
| 22 | return |
| 23 | } |
| 24 | fp, err := w.Ident.AddKey(pr.account.Name, key, pr.account.Name) |
| 25 | if err != nil { |
| 26 | msg := err.Error() |
| 27 | if strings.Contains(msg, "already registered") { |
| 28 | // Do not turn a known public key into a lookup of somebody else's name. |
| 29 | msg = "that SSH key is already registered" |
| 30 | } |
| 31 | http.Error(rw, msg, http.StatusBadRequest) |
| 32 | return |
| 33 | } |
| 34 | w.audit("web.key.add", pr.account.Name, "", fp) |
| 35 | http.Redirect(rw, r, "/-/account", http.StatusSeeOther) |
| 36 | } |
| 37 | |
| 38 | // RemoveAccountKey detaches one of the signed-in account's own keys. It is the |
| 39 | // same operation an instance admin can perform, scoped by the session account. |
| 40 | // RenameAccountPasskey relabels one of the signed-in account's own passkeys. A label |
| 41 | // is display text: the credential id is what signs in, so this is a small update and |
| 42 | // not a re-registration. |
| 43 | func (w *Web) RenameAccountPasskey(rw http.ResponseWriter, r *http.Request) { |
| 44 | pr, ok := w.beginPost(rw, r, maxTinyForm) |
| 45 | if !ok { |
| 46 | return |
| 47 | } |
| 48 | id, err := identity.ParseCredentialID(strings.TrimSpace(r.PostFormValue("credential"))) |
| 49 | if err != nil { |
| 50 | http.Error(rw, "choose a passkey", http.StatusBadRequest) |
| 51 | return |
| 52 | } |
| 53 | label := strings.TrimSpace(r.PostFormValue("label")) |
| 54 | if err := w.Ident.RenameCredential(pr.account.Name, id, label, pr.account.Name); err != nil { |
| 55 | if errors.Is(err, identity.ErrCredentialNotFound) { |
| 56 | http.Error(rw, err.Error(), http.StatusNotFound) |
| 57 | return |
| 58 | } |
| 59 | http.Error(rw, err.Error(), http.StatusBadRequest) |
| 60 | return |
| 61 | } |
| 62 | w.audit("web.passkey.rename", pr.account.Name, "", identity.CredentialIDString(id)+" "+label) |
| 63 | http.Redirect(rw, r, "/-/account", http.StatusSeeOther) |
| 64 | } |
| 65 | |
| 66 | // RemoveAccountPasskey revokes one of the signed-in account's own passkeys, and with |
| 67 | // it the sessions that signed in with it. |
| 68 | // |
| 69 | // The last passkey is the last way into the browser, so it is refused when the account |
| 70 | // has no SSH key either: an account with neither can only be brought back by an |
| 71 | // instance admin, and losing the only way in should never be a click that succeeded. |
| 72 | // An SSH key is a way in — it pushes and clones — so an account that has one loses only |
| 73 | // its browser sign-in. |
| 74 | func (w *Web) RemoveAccountPasskey(rw http.ResponseWriter, r *http.Request) { |
| 75 | pr, ok := w.beginPost(rw, r, maxTinyForm) |
| 76 | if !ok { |
| 77 | return |
| 78 | } |
| 79 | id, err := identity.ParseCredentialID(strings.TrimSpace(r.PostFormValue("credential"))) |
| 80 | if err != nil { |
| 81 | http.Error(rw, "choose a passkey", http.StatusBadRequest) |
| 82 | return |
| 83 | } |
| 84 | creds, err := w.Ident.Credentials(pr.account.Name) |
| 85 | if err != nil { |
| 86 | w.serverError(rw, r, "cannot read passkeys: "+err.Error()) |
| 87 | return |
| 88 | } |
| 89 | last := len(creds) == 1 && identity.CredentialIDString(creds[0].ID) == identity.CredentialIDString(id) |
| 90 | if last && len(pr.account.Keys) == 0 { |
| 91 | http.Error(rw, |
| 92 | "this is the only way into your account: register another passkey or add an SSH key "+ |
| 93 | "first, or ask an instance admin for an invite", http.StatusConflict) |
| 94 | return |
| 95 | } |
| 96 | if err := w.Ident.RemoveCredential(pr.account.Name, id, pr.account.Name); err != nil { |
| 97 | if errors.Is(err, identity.ErrCredentialNotFound) { |
| 98 | http.Error(rw, err.Error(), http.StatusNotFound) |
| 99 | return |
| 100 | } |
| 101 | http.Error(rw, err.Error(), http.StatusBadRequest) |
| 102 | return |
| 103 | } |
| 104 | w.audit("web.passkey.remove", pr.account.Name, "", identity.CredentialIDString(id)) |
| 105 | http.Redirect(rw, r, "/-/account", http.StatusSeeOther) |
| 106 | } |
| 107 | |
| 108 | func (w *Web) RemoveAccountKey(rw http.ResponseWriter, r *http.Request) { |
| 109 | pr, ok := w.beginPost(rw, r, maxTinyForm) |
| 110 | if !ok { |
| 111 | return |
| 112 | } |
| 113 | fp := strings.TrimSpace(r.PostFormValue("fingerprint")) |
| 114 | if fp == "" { |
| 115 | http.Error(rw, "choose a key", http.StatusBadRequest) |
| 116 | return |
| 117 | } |
| 118 | if err := w.Ident.RemoveKey(pr.account.Name, fp, pr.account.Name); err != nil { |
| 119 | http.Error(rw, err.Error(), http.StatusBadRequest) |
| 120 | return |
| 121 | } |
| 122 | w.audit("web.key.remove", pr.account.Name, "", fp) |
| 123 | http.Redirect(rw, r, "/-/account", http.StatusSeeOther) |
| 124 | } |
| 125 |