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feat(url-utils): replace p/ syntax with >>> cross-board references

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plebeius
2025-12-31 17:59:33 +01:00
parent 341e72ad5b
commit c984e56249
1 changed files with 52 additions and 18 deletions
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src/lib/utils/url-utils.ts
+52 -18
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@@ -148,42 +148,76 @@ const isValidDomain = (str: string): boolean => {
return str.includes('.') && str.split('.').length >= 2 && str.split('.').every((part) => part.length > 0);
};
// Check if a plain text pattern is a valid 5chan subplebbit reference
export const isValidSubplebbitPattern = (pattern: string): boolean => {
// Must start with "p/"
if (!pattern.startsWith('p/')) {
// Check if a plain text pattern is a valid 5chan cross-board reference (>>>/...)
export const isValidCrossboardPattern = (pattern: string): boolean => {
// Must start with ">>>/"
if (!pattern.startsWith('>>>/')) {
return false;
}
const pathPart = pattern.substring(2); // Remove "p/"
const pathPart = pattern.substring(4); // Remove ">>>/"
// Check if it's a post pattern: subplebbitAddress/c/cid
const postMatch = pathPart.match(/^([^/]+)\/c\/([^/]+)$/);
if (postMatch) {
const [, subplebbitAddress, cid] = postMatch;
// CID should be at least 10 characters (minimum reasonable CID length)
return (isValidDomain(subplebbitAddress) || isValidIPNSKey(subplebbitAddress)) && cid.length >= 10;
// Check if it's a directory pattern with trailing slash: >>>/biz/
if (/^[a-zA-Z0-9]{1,10}\/$/.test(pathPart)) {
return true; // Directory codes are always valid (highest-voted boards)
}
// Check if it's just a subplebbit pattern: subplebbitAddress
// Check if it's a directory + thread pattern: >>>/biz/fullCid
const directoryThreadMatch = pathPart.match(/^([a-zA-Z0-9]{1,10})\/([a-zA-Z0-9]{46})$/);
if (directoryThreadMatch) {
return true; // CID is exactly 46 alphanumeric chars
}
// Check if it's a full address + thread pattern: >>>/board.eth/fullCid
const addressThreadMatch = pathPart.match(/^([^/]+)\/([a-zA-Z0-9]{46})$/);
if (addressThreadMatch) {
const [, address] = addressThreadMatch;
// Address must be valid domain or IPNS key
return isValidDomain(address) || isValidIPNSKey(address);
}
// Check if it's just a full address pattern: >>>/board.eth
return isValidDomain(pathPart) || isValidIPNSKey(pathPart);
};
// Preprocess content to convert plain text 5chan patterns to markdown links
// Preprocess content to convert plain text 5chan cross-board patterns to markdown links
export const preprocess5chanPatterns = (content: string): string => {
// Pattern to match "p/something" or "p/something/c/something"
// Pattern to match ">>>/something" or ">>>/something/cid"
// Negative lookbehind prevents matching patterns that are already part of URLs
const pattern = /(?<!https?:\/\/[^\s]*)\bp\/([a-zA-Z0-9\-.]+(?:\/c\/[a-zA-Z0-9]{10,100})?)[.,:;!?]*/g;
// Matches: >>>/directory/, >>>/directory/cid (46 chars), >>>/address, >>>/address/cid (46 chars)
const pattern = /(?<!https?:\/\/[^\s]*)>>>\/([a-zA-Z0-9]{1,10}\/(?:[a-zA-Z0-9]{46})?|[a-zA-Z0-9\-.]+(?:\/[a-zA-Z0-9]{46})?)[.,:;!?]*/g;
return content.replace(pattern, (match, capturedPath) => {
// Remove any trailing punctuation from the captured path
const cleanPath = capturedPath.replace(/[.,:;!?]+$/, '');
const fullPattern = `p/${cleanPath}`;
const fullPattern = `>>>/${cleanPath}`;
if (isValidCrossboardPattern(fullPattern)) {
// Generate internal route based on pattern type
let internalRoute: string;
// Directory with trailing slash: >>>/biz/ → /biz
if (/^[a-zA-Z0-9]{1,10}\/$/.test(cleanPath)) {
internalRoute = `/${cleanPath.slice(0, -1)}`;
}
// Directory + CID: >>>/biz/cid → /biz/thread/cid (CID is 46 chars)
else if (/^[a-zA-Z0-9]{1,10}\/[a-zA-Z0-9]{46}$/.test(cleanPath)) {
const [code, cid] = cleanPath.split('/');
internalRoute = `/${code}/thread/${cid}`;
}
// Full address + CID: >>>/board.eth/cid → /board.eth/thread/cid (CID is 46 chars)
else if (/^[^/]+\/[a-zA-Z0-9]{46}$/.test(cleanPath)) {
const [address, cid] = cleanPath.split('/');
internalRoute = `/${address}/thread/${cid}`;
}
// Just a full address: >>>/board.eth → /board.eth
else {
internalRoute = `/${cleanPath}`;
}
if (isValidSubplebbitPattern(fullPattern)) {
// Preserve trailing punctuation outside the link
const trailingPunctuation = match.slice(fullPattern.length);
return `[${fullPattern}](/${fullPattern})${trailingPunctuation}`;
return `[${fullPattern}](${internalRoute})${trailingPunctuation}`;
}
return match;