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fix(onboarding): parse X URLs with www. and bare-domain prefixes #994

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fix(onboarding): parse X URLs with www. and bare-domain prefixes #994

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698aa9e
fix(onboarding): handle www. and bare-domain X/Twitter URLs in resear…
vimzh May 24, 2026
923ed4e
fix(onboarding): apply biome formatter to extractHandle fallback line
vimzh May 24, 2026
251e250
fix(onboarding): reject non-X hosts and anchor regex in extractHandle
vimzh May 24, 2026
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52 changes: 42 additions & 10 deletions apps/web/app/api/onboarding/research/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -7,16 +7,41 @@ interface ResearchRequest {
email?: string
}

function extractHandle(url: string): string {
const cleaned = url
.toLowerCase()
.replace("https://x.com/", "")
.replace("https://twitter.com/", "")
.replace("http://x.com/", "")
.replace("http://twitter.com/", "")
.replace("@", "")

return (cleaned.split("/")[0] ?? cleaned).split("?")[0] ?? cleaned
function isXHost(hostname: string): boolean {
const host = hostname.toLowerCase()
return (
host === "x.com" ||
host === "twitter.com" ||
host.endsWith(".x.com") ||
host.endsWith(".twitter.com")
)
}

function extractHandle(input: string): string {
const trimmed = input.trim()
if (!trimmed) return ""

let handle = trimmed.replace(/^@+/, "")
const lower = handle.toLowerCase()

if (lower.includes("x.com") || lower.includes("twitter.com")) {
try {
const parsed = new URL(
handle.startsWith("http://") || handle.startsWith("https://")
? handle
: `https://${handle}`,
)
handle = isXHost(parsed.hostname)
? (parsed.pathname.split("/").filter(Boolean)[0] ?? "")
: ""
} catch {
handle =
handle.match(/(?:^|[./])(?:x\.com|twitter\.com)\/([^/\s?#]+)/i)?.[1] ??
""
}
}

return handle.replace(/^@+/, "").split(/[/?#]/)[0]?.toLowerCase() ?? ""
}

function finalPrompt(handle: string, userContext: string) {
Expand Down Expand Up @@ -47,6 +72,13 @@ export async function POST(req: Request) {

const handle = extractHandle(xUrl)

if (!/^[A-Za-z0-9_]{1,15}$/.test(handle)) {
return Response.json(
{ error: "Could not parse a valid X/Twitter handle from the input" },
{ status: 400 },
)
}

const contextParts: string[] = []
if (name) contextParts.push(`Name: ${name}`)
if (email) contextParts.push(`Email: ${email}`)
Expand Down