88 lines
2.2 KiB
TypeScript
88 lines
2.2 KiB
TypeScript
import type {
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FileData,
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FileEncoding,
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} from "../../common/spaces/space_primitives.ts";
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import { renderToText, replaceNodesMatching } from "$sb/lib/tree.ts";
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import type { FileMeta } from "../../common/types.ts";
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import { parseMarkdown } from "$sb/silverbullet-syscall/markdown.ts";
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import { base64EncodedDataUrl } from "../../plugos/asset_bundle/base64.ts";
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export const cloudPrefix = "💭 ";
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export async function readFileCloud(
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name: string,
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encoding: FileEncoding,
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): Promise<{ data: FileData; meta: FileMeta } | undefined> {
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const originalUrl = name.substring(
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cloudPrefix.length,
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name.length - ".md".length,
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);
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let url = originalUrl;
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if (!url.includes("/")) {
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url += "/index";
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}
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if (!url.startsWith("127.0.0.1")) {
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url = `https://${url}`;
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} else {
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url = `http://${url}`;
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}
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let text = "";
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try {
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const r = await fetch(`${encodeURI(url)}.md`);
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text = await r.text();
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if (!r.ok) {
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text = `ERROR: ${text}`;
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}
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} catch (e: any) {
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console.error("ERROR thrown", e.message);
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text = `ERROR: ${e.message}`;
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}
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text = await translateLinksWithPrefix(
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text,
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`${cloudPrefix}${originalUrl.split("/")[0]}/`,
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);
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return {
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data: encoding === "utf8" ? text : base64EncodedDataUrl(
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"text/markdown",
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new TextEncoder().encode(text),
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),
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meta: {
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name,
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contentType: "text/markdown",
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lastModified: 0,
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size: text.length,
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perm: "ro",
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},
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};
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}
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async function translateLinksWithPrefix(
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text: string,
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prefix: string,
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): Promise<string> {
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const tree = await parseMarkdown(text);
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replaceNodesMatching(tree, (tree) => {
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if (tree.type === "WikiLinkPage") {
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// Add the prefix in the link text
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if (!tree.children![0].text!.startsWith(cloudPrefix)) {
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// Only for links that aren't already cloud links
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tree.children![0].text = prefix + tree.children![0].text;
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}
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}
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return undefined;
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});
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text = renderToText(tree);
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return text;
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}
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export function getFileMetaCloud(name: string): Promise<FileMeta> {
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return Promise.resolve({
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name,
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size: 0,
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contentType: "text/markdown",
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lastModified: 0,
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perm: "ro",
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});
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}
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