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This website is protected behind a password.

\n \n

\n \n`;\n\nexport function redirect(location: string): Response {\n return new Response(null, {\n headers: {\n location,\n },\n status: 302,\n });\n}\n\ntype Handler = (req?: Request) => Response | Promise;\n\ntype PasswordAuthOptions = {\n verifyPassword: (password: string) => boolean | Promise;\n sessionTable?: string;\n};\n\nconst cookieName = \"auth_session\";\n\nexport function passwordAuth(next, options?: PasswordAuthOptions) {\n const sessionTable = options?.sessionTable || \"password_auth_session\";\n return async (req: Request) => {\n const val = inferRequestVal(req);\n const valSlug = `${val.handle}/${val.name}`;\n\n const url = new URL(req.url);\n if (url.pathname == \"/signin\" && req.method == \"GET\") {\n return html(loginPage);\n }\n\n if (url.pathname == \"/signin\" && req.method == \"POST\") {\n const formData = await req.formData();\n const password = formData.get(\"password\") as string;\n if (!await options.verifyPassword(password)) {\n return new Response(\"Unauthorized\", {\n status: 403,\n });\n }\n const session = await createSession(sessionTable, valSlug);\n const res = redirect(url.searchParams.get(\"redirect\") || \"/\");\n setCookie(res.headers, {\n name: cookieName,\n value: session.id,\n maxAge: session.expiresAt,\n httpOnly: true,\n secure: true,\n // to work in val.town iframes\n sameSite: \"None\",\n });\n\n return res;\n }\n\n if (url.pathname == \"/signout\") {\n const res = redirect(\"/signin\");\n deleteCookie(res.headers, cookieName);\n return res;\n }\n\n if (req.headers.has(\"Authorization\")) {\n const requestToken = req.headers.get(\"Authorization\").replace(\"Bearer \", \"\").trim();\n if (!await options.verifyPassword(requestToken)) {\n return new Response(null, {\n status: 403,\n });\n }\n return next(req);\n }\n\n const sessionID = getCookies(req.headers)[cookieName];\n if (!sessionID) {\n return redirect(\"/signin\");\n }\n\n const session = await getSession(sessionTable, sessionID, valSlug);\n if (!session) {\n const res = redirect(`/signin`);\n deleteCookie(res.headers, cookieName);\n return res;\n }\n\n if (session.expiresAt < Date.now()) {\n const res = redirect(`/signin`);\n deleteCookie(res.headers, cookieName);\n return res;\n }\n\n return next(req);\n };\n}","deleted","label",[59],"99ca2ec2-279b-11f0-9d52-569c3dd06744","README.md","99ca2f58-279b-11f0-9d52-569c3dd06744",["D",1735869375139],"# Password Auth Middleware\n\nProtect your vals behind a password. Use session cookies to persist authentication.\n\n![6ed0648ae8813e958dbe79468572cb52f578239c0fae55857a13660beebdc5fd.png](https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/36c1dc4f-4e19-457b-ad89-0bf139754e00/public)\n\n## Usage\n\n```ts\nimport { passwordAuth } from \"https://esm.town/v/pomdtr/password_auth?v=84\";\n\nexport default passwordAuth(() => {\n return new Response(\"OK\");\n}, { verifyPassword: (password) => password == Deno.env.get(\"VAL_PASSWORD\") });\n```\n\nIf you want to use an [api token](https://www.val.town/settings/api) to authenticate: \n\n```ts\nimport { passwordAuth } from \"https://esm.town/v/pomdtr/password_auth?v=84\";\nimport { verifyToken } from \"https://esm.town/v/pomdtr/verifyToken\";\n\nexport default passwordAuth(() => {\n return new Response(\"OK\");\n}, { verifyPassword: verifyToken });\n```\n\n## TODO\n\n- [x] allow to authenticate using a val town token\n- [ ] add a way to send an email to ask a password from the val owner\n- [ ] automatically extend the session\n- [ ] automatically remove expired sessions\n\n## FAQ\n\n> How to sign out ?\n\nNavigate to 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Code