feat: add liberapay support

README.md

@@ -11,6 +11,7 @@ Supports:
 - [**OpenCollective**](https://opencollective.com/)
 - [**Afdian**](https://afdian.com/)
 - [**Polar**](https://polar.sh/)
+- [**Liberapay**](https://liberapay.com/)
 
 ## Usage
 
@@ -50,6 +51,10 @@ SPONSORKIT_AFDIAN_TOKEN=
 SPONSORKIT_POLAR_TOKEN=
 ; The name of the organization to fetch sponsorships from.
 SPONSORKIT_POLAR_ORGANIZATION=
+
+; Liberapay provider.
+; The name of the profile.
+SPONSORKIT_LIBERAPAY_LOGIN=
 ```
 
 > Only one provider is required to be configured.
@@ -87,6 +92,9 @@ export default defineConfig({
   polar: {
     // ...
   },
+  liberapay: {
+    // ...
+  },
 
   // Rendering configs
   width: 800,

package.json

@@ -48,6 +48,7 @@
   },
   "dependencies": {
     "@antfu/utils": "^0.7.10",
+    "@fast-csv/parse": "^5.0.2",
     "consola": "^3.2.3",
     "d3-hierarchy": "^3.1.2",
     "dotenv": "^16.4.5",

src/configs/env.ts

@@ -37,6 +37,9 @@ export function loadEnv(): Partial<SponsorkitConfig> {
       token: process.env.SPONSORKIT_POLAR_TOKEN || process.env.POLAR_TOKEN,
       organization: process.env.SPONSORKIT_POLAR_ORGANIZATION || process.env.POLAR_ORGANIZATION,
     },
+    liberapay: {
+      login: process.env.SPONSORKIT_LIBERAPAY_LOGIN || process.env.LIBERAPAY_LOGIN,
+    },
     outputDir: process.env.SPONSORKIT_DIR,
   }
 

src/processing/image.ts

@@ -38,6 +38,9 @@ export async function resolveAvatars(
     }
 
     const pngBuffer = await fetchImage(ship.sponsor.avatarUrl).catch((e) => {
+      // Liberapay avatar URLs can return 404 Not Found
+      if (ship.provider == 'liberapay' && e.toString().includes('404 Not Found') && fallbackAvatar)
+        return fallbackAvatar
       t.error(`Failed to fetch avatar for ${ship.sponsor.login || ship.sponsor.name} [${ship.sponsor.avatarUrl}]`)
       t.error(e)
       if (fallbackAvatar)

src/providers/index.ts

@@ -1,5 +1,6 @@
 import { AfdianProvider } from './afdian'
 import { GitHubProvider } from './github'
+import { LiberapayProvider } from "./liberapay"
 import { OpenCollectiveProvider } from './opencollective'
 import { PatreonProvider } from './patreon'
 import { PolarProvider } from './polar'
@@ -13,6 +14,7 @@ export const ProvidersMap = {
   opencollective: OpenCollectiveProvider,
   afdian: AfdianProvider,
   polar: PolarProvider,
+  liberapay: LiberapayProvider,
 }
 
 export function guessProviders(config: SponsorkitConfig) {
@@ -32,6 +34,9 @@ export function guessProviders(config: SponsorkitConfig) {
   if (config.polar && config.polar.token)
     items.push('polar')
 
+  if (config.liberapay && config.liberapay.login)
+    items.push('liberapay')
+
   // fallback
   if (!items.length)
     items.push('github')

src/providers/liberapay.ts

@@ -0,0 +1,86 @@
+
+import { $fetch } from 'ofetch'
+import { parseString } from '@fast-csv/parse'
+import type { Provider, Sponsorship } from '../types'
+
+export const LiberapayProvider: Provider = {
+  name: 'liberapay',
+  fetchSponsors(config) {
+    return fetchLiberapaySponsors(config.liberapay?.login)
+  },
+}
+
+interface LiberapayRow {
+  pledge_date: string
+  patron_id: string
+  patron_username: string
+  patron_public_name: string
+  donation_currency: string
+  weekly_amount: string
+  patron_avatar_url: string
+}
+
+interface ExchangeRate {
+  code: string
+  alphaCode: string
+  numericCode: string
+  name: string
+  rate: number
+  date: string
+  inverseRate: number
+}
+
+interface ExchangeRates {
+  [key: string]: ExchangeRate
+}
+
+export async function fetchLiberapaySponsors(login?: string): Promise<Sponsorship[]> {
+  if (!login)
+    throw new Error('Liberapay login is required')
+
+  // Fetch and parse public CSV data
+  const csvUrl = `https://liberapay.com/${login}/patrons/public.csv`
+  const csvResponse = await $fetch<string>(csvUrl)
+  const rows: LiberapayRow[] = []
+  await new Promise((resolve) => {
+    parseString(csvResponse, {
+      headers: true,
+      ignoreEmpty: true,
+      trim: true,
+    })
+      .on('data', (row) => rows.push(row))
+      .on('end', resolve)
+  })
+
+  // Only fetch exchange rates if we have patrons with non-USD currencies
+  const exchangeRates = rows.some(r => r.donation_currency !== 'USD')
+    ? await $fetch<ExchangeRates>('https://www.floatrates.com/daily/usd.json')
+    : {}
+
+  return rows.map(row => ({
+    sponsor: {
+      type: 'User',
+      login: row.patron_username,
+      name: row.patron_public_name || row.patron_username,
+      avatarUrl: row.patron_avatar_url,
+      linkUrl: `https://liberapay.com/${row.patron_username}`,
+    },
+    monthlyDollars: getMonthlyDollarAmount(parseFloat(row.weekly_amount), row.donation_currency, exchangeRates),
+    privacyLevel: 'PUBLIC',
+    createdAt: new Date(row.pledge_date).toISOString(),
+    provider: 'liberapay',
+  }))
+}
+
+function getMonthlyDollarAmount(weeklyAmount: number, currency: string, exchangeRates: ExchangeRates): number {
+  const weeksPerMonth = 4.345
+  const monthlyAmount = weeklyAmount * weeksPerMonth
+
+  if (currency === 'USD')
+    return monthlyAmount
+
+  // Optionally exchange to USD
+  const currencyLower = currency.toLowerCase()
+  const inverseRate = exchangeRates[currencyLower]?.inverseRate ?? 1
+  return monthlyAmount * inverseRate
+}

src/types.ts

@@ -75,7 +75,7 @@ export const outputFormats = ['svg', 'png', 'webp', 'json'] as const
 
 export type OutputFormat = typeof outputFormats[number]
 
-export type ProviderName = 'github' | 'patreon' | 'opencollective' | 'afdian' | 'polar'
+export type ProviderName = 'github' | 'patreon' | 'opencollective' | 'afdian' | 'polar' | 'liberapay'
 
 export type GitHubAccountType = 'user' | 'organization'
 
@@ -200,6 +200,15 @@ export interface ProvidersConfig {
      */
     organization?: string
   }
+
+  liberapay?: {
+    /**
+     * The name of the Liberapay profile.
+     *
+     * Will read from `SPONSORKIT_LIBERAPAY_LOGIN` environment variable if not set.
+     */
+    login?: string;
+};
 }
 
 export interface SponsorkitRenderOptions {