feat: Generate RSS feeds from lists (#1507)

* refactor: Move bookmark utils from shared-react to shared

* Expose RSS feeds for lists

* Add e2e tests

* Slightly improve the look of the share dialog

* allow specifying a limit in the rss endpoint

6 files changed, 205 insertions, 33 deletions

diff --git a/apps/web/components/dashboard/lists/ListOptions.tsx b/apps/web/components/dashboard/lists/ListOptions.tsx
index 9a979686..d0dedfd5 100644
--- a/apps/web/components/dashboard/lists/ListOptions.tsx
+++ b/apps/web/components/dashboard/lists/ListOptions.tsx
@@ -6,13 +6,14 @@ import {
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import { useTranslation } from "@/lib/i18n/client";
-import { FolderInput, Pencil, Plus, Trash2 } from "lucide-react";
+import { FolderInput, Pencil, Plus, Share, Trash2 } from "lucide-react";
 
 import { ZBookmarkList } from "@karakeep/shared/types/lists";
 
 import { EditListModal } from "../lists/EditListModal";
 import DeleteListConfirmationDialog from "./DeleteListConfirmationDialog";
 import { MergeListModal } from "./MergeListModal";
+import { ShareListModal } from "./ShareListModal";
 
 export function ListOptions({
   list,
@@ -31,9 +32,15 @@ export function ListOptions({
   const [newNestedListModalOpen, setNewNestedListModalOpen] = useState(false);
   const [mergeListModalOpen, setMergeListModalOpen] = useState(false);
   const [editModalOpen, setEditModalOpen] = useState(false);
+  const [shareModalOpen, setShareModalOpen] = useState(false);
 
   return (
     <DropdownMenu open={isOpen} onOpenChange={onOpenChange}>
+      <ShareListModal
+        open={shareModalOpen}
+        setOpen={setShareModalOpen}
+        list={list}
+      />
       <EditListModal
         open={newNestedListModalOpen}
         setOpen={setNewNestedListModalOpen}
@@ -67,6 +74,13 @@ export function ListOptions({
         </DropdownMenuItem>
         <DropdownMenuItem
           className="flex gap-2"
+          onClick={() => setShareModalOpen(true)}
+        >
+          <Share className="size-4" />
+          <span>{t("lists.share_list")}</span>
+        </DropdownMenuItem>
+        <DropdownMenuItem
+          className="flex gap-2"
           onClick={() => setNewNestedListModalOpen(true)}
         >
           <Plus className="size-4" />
diff --git a/apps/web/components/dashboard/lists/RssLink.tsx b/apps/web/components/dashboard/lists/RssLink.tsx
new file mode 100644
index 00000000..152a3fe4
--- /dev/null
+++ b/apps/web/components/dashboard/lists/RssLink.tsx
@@ -0,0 +1,114 @@
+"use client";
+
+import { useMemo } from "react";
+import { Badge } from "@/components/ui/badge";
+import { Button, buttonVariants } from "@/components/ui/button";
+import CopyBtn from "@/components/ui/copy-button";
+import { Input } from "@/components/ui/input";
+import { useClientConfig } from "@/lib/clientConfig";
+import { api } from "@/lib/trpc";
+import { cn } from "@/lib/utils";
+import { Loader2, RotateCcw, Rss, Trash2 } from "lucide-react";
+import { useTranslation } from "react-i18next";
+
+export default function RssLink({ listId }: { listId: string }) {
+  const { t } = useTranslation();
+  const clientConfig = useClientConfig();
+  const apiUtils = api.useUtils();
+
+  const { mutate: regenRssToken, isPending: isRegenPending } =
+    api.lists.regenRssToken.useMutation({
+      onSuccess: () => {
+        apiUtils.lists.getRssToken.invalidate({ listId });
+      },
+    });
+  const { mutate: clearRssToken, isPending: isClearPending } =
+    api.lists.clearRssToken.useMutation({
+      onSuccess: () => {
+        apiUtils.lists.getRssToken.invalidate({ listId });
+      },
+    });
+  const { data: rssToken, isLoading: isTokenLoading } =
+    api.lists.getRssToken.useQuery({ listId });
+
+  const rssUrl = useMemo(() => {
+    if (!rssToken || !rssToken.token) {
+      return null;
+    }
+    return `${clientConfig.publicApiUrl}/v1/rss/lists/${listId}?token=${rssToken.token}`;
+  }, [rssToken]);
+
+  const isLoading = isRegenPending || isClearPending || isTokenLoading;
+
+  return (
+    <div className="flex items-center gap-3 rounded-lg border bg-white p-3">
+      <Badge variant="outline" className="text-xs">
+        RSS
+      </Badge>
+      {!rssUrl ? (
+        <div className="flex items-center gap-2">
+          <Button
+            size="sm"
+            variant="outline"
+            onClick={() => regenRssToken({ listId })}
+            disabled={isLoading}
+          >
+            {isLoading ? (
+              <Loader2 className="h-3 w-3 animate-spin" />
+            ) : (
+              <span className="flex items-center">
+                <Rss className="mr-2 h-4 w-4 flex-shrink-0 text-orange-500" />
+                {t("lists.generate_rss_feed")}
+              </span>
+            )}
+          </Button>
+        </div>
+      ) : (
+        <div className="flex min-w-0 flex-1 items-center gap-2">
+          <Input
+            value={rssUrl}
+            readOnly
+            className="h-8 min-w-0 flex-1 font-mono text-xs"
+          />
+          <div className="flex flex-shrink-0 gap-1">
+            <CopyBtn
+              getStringToCopy={() => {
+                return rssUrl;
+              }}
+              className={cn(
+                buttonVariants({ variant: "outline", size: "sm" }),
+                "h-8 w-8 p-0",
+              )}
+            />
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => regenRssToken({ listId })}
+              disabled={isLoading}
+              className="h-8 w-8 p-0"
+            >
+              {isLoading ? (
+                <Loader2 className="h-3 w-3 animate-spin" />
+              ) : (
+                <RotateCcw className="h-3 w-3" />
+              )}
+            </Button>
+            <Button
+              variant="outline"
+              size="sm"
+              onClick={() => clearRssToken({ listId })}
+              disabled={isLoading}
+              className="h-8 w-8 p-0 text-destructive hover:text-destructive"
+            >
+              {isLoading ? (
+                <Loader2 className="h-3 w-3 animate-spin" />
+              ) : (
+                <Trash2 className="h-3 w-3" />
+              )}
+            </Button>
+          </div>
+        </div>
+      )}
+    </div>
+  );
+}
diff --git a/apps/web/components/dashboard/lists/ShareListModal.tsx b/apps/web/components/dashboard/lists/ShareListModal.tsx
new file mode 100644
index 00000000..5c7b060e
--- /dev/null
+++ b/apps/web/components/dashboard/lists/ShareListModal.tsx
@@ -0,0 +1,68 @@
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import {
+  Dialog,
+  DialogClose,
+  DialogContent,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+  DialogTrigger,
+} from "@/components/ui/dialog";
+import { useTranslation } from "@/lib/i18n/client";
+import { DialogDescription } from "@radix-ui/react-dialog";
+
+import { ZBookmarkList } from "@karakeep/shared/types/lists";
+
+import RssLink from "./RssLink";
+
+export function ShareListModal({
+  open: userOpen,
+  setOpen: userSetOpen,
+  list,
+  children,
+}: {
+  open?: boolean;
+  setOpen?: (v: boolean) => void;
+  list: ZBookmarkList;
+  children?: React.ReactNode;
+}) {
+  const { t } = useTranslation();
+  if (
+    (userOpen !== undefined && !userSetOpen) ||
+    (userOpen === undefined && userSetOpen)
+  ) {
+    throw new Error("You must provide both open and setOpen or neither");
+  }
+  const [customOpen, customSetOpen] = useState(false);
+  const [open, setOpen] = [
+    userOpen ?? customOpen,
+    userSetOpen ?? customSetOpen,
+  ];
+
+  return (
+    <Dialog
+      open={open}
+      onOpenChange={(s) => {
+        setOpen(s);
+      }}
+    >
+      {children && <DialogTrigger asChild>{children}</DialogTrigger>}
+      <DialogContent className="max-w-xl">
+        <DialogHeader>
+          <DialogTitle>{t("lists.share_list")}</DialogTitle>
+        </DialogHeader>
+        <DialogDescription className="mt-4 flex flex-col gap-2">
+          <RssLink listId={list.id} />
+        </DialogDescription>
+        <DialogFooter className="sm:justify-end">
+          <DialogClose asChild>
+            <Button type="button" variant="secondary">
+              {t("actions.close")}
+            </Button>
+          </DialogClose>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}
diff --git a/apps/web/lib/clientConfig.tsx b/apps/web/lib/clientConfig.tsx
index 2a66de37..03089e49 100644
--- a/apps/web/lib/clientConfig.tsx
+++ b/apps/web/lib/clientConfig.tsx
@@ -3,6 +3,8 @@ import { createContext, useContext } from "react";
 import type { ClientConfig } from "@karakeep/shared/config";
 
 export const ClientConfigCtx = createContext<ClientConfig>({
+  publicUrl: "",
+  publicApiUrl: "",
   demoMode: undefined,
   auth: {
     disableSignups: false,
diff --git a/apps/web/lib/i18n/locales/en/translation.json b/apps/web/lib/i18n/locales/en/translation.json
index 48d32f37..d7ee54a3 100644
--- a/apps/web/lib/i18n/locales/en/translation.json
+++ b/apps/web/lib/i18n/locales/en/translation.json
@@ -282,6 +282,7 @@
     "favourites": "Favourites",
     "new_list": "New List",
     "edit_list": "Edit List",
+    "share_list": "Share List",
     "new_nested_list": "New Nested List",
     "merge_list": "Merge List",
     "destination_list": "Destination List",
@@ -294,7 +295,8 @@
     "smart_list": "Smart List",
     "search_query": "Search Query",
     "search_query_help": "Learn more about the search query language.",
-    "description": "Description (Optional)"
+    "description": "Description (Optional)",
+    "generate_rss_feed": "Generate RSS Feed"
   },
   "tags": {
     "all_tags": "All Tags",
diff --git a/apps/workers/trpc.ts b/apps/workers/trpc.ts
index c5f880ad..28cd2d0b 100644
--- a/apps/workers/trpc.ts
+++ b/apps/workers/trpc.ts
@@ -1,36 +1,8 @@
-import { eq } from "drizzle-orm";
-
-import { db } from "@karakeep/db";
-import { users } from "@karakeep/db/schema";
-import { AuthedContext, createCallerFactory } from "@karakeep/trpc";
+import { createCallerFactory } from "@karakeep/trpc";
+import { buildImpersonatingAuthedContext as buildAuthedContext } from "@karakeep/trpc/lib/impersonate";
 import { appRouter } from "@karakeep/trpc/routers/_app";
 
-/**
- * This is only safe to use in the context of a worker.
- */
-export async function buildImpersonatingAuthedContext(
-  userId: string,
-): Promise<AuthedContext> {
-  const user = await db.query.users.findFirst({
-    where: eq(users.id, userId),
-  });
-  if (!user) {
-    throw new Error("User not found");
-  }
-
-  return {
-    user: {
-      id: user.id,
-      name: user.name,
-      email: user.email,
-      role: user.role,
-    },
-    db,
-    req: {
-      ip: null,
-    },
-  };
-}
+export const buildImpersonatingAuthedContext = buildAuthedContext;
 
 /**
  * This is only safe to use in the context of a worker.