| 1 | //! The card processor, behind the calls billing needs: start a payment |
| 2 | //! page, save and verify a card, ask whether a payment was made, and start, |
| 3 | //! read or end the monthly plan. Stripe speaks form-encoded requests and |
| 4 | //! JSON answers. |
| 5 | //! |
| 6 | //! Every Stripe object billing needs beyond customers and their payments |
| 7 | //! (the plan's product, the billing page's settings) is made the first time |
| 8 | //! it is needed, and found again by its `metadata[g1t]` after that. |
| 9 | |
| 10 | use serde::Deserialize; |
| 11 | use worker::{Error, Fetch, Headers, Method, Request, RequestInit, Result}; |
| 12 | |
| 13 | const API: &str = "https://api.stripe.com/v1"; |
| 14 | |
| 15 | pub struct Stripe { |
| 16 | key: String, |
| 17 | } |
| 18 | |
| 19 | /// A payment page, and the payment made through it. |
| 20 | #[derive(Deserialize)] |
| 21 | pub struct Session { |
| 22 | pub id: String, |
| 23 | /// Where to send the person. Absent once the page has been used. |
| 24 | pub url: Option<String>, |
| 25 | /// `paid` once the money has been taken. |
| 26 | pub payment_status: String, |
| 27 | /// What was paid, in cents. |
| 28 | pub amount_total: Option<u32>, |
| 29 | pub customer: Option<String>, |
| 30 | /// For a plan's page: the subscription it started. |
| 31 | #[serde(default)] |
| 32 | pub subscription: Option<String>, |
| 33 | /// For a card check's page: the setup that saved and verified the card. |
| 34 | #[serde(default)] |
| 35 | pub setup_intent: Option<String>, |
| 36 | } |
| 37 | |
| 38 | /// A card saved and verified: what a card check found. |
| 39 | #[derive(Debug, Deserialize)] |
| 40 | pub struct CheckedCard { |
| 41 | pub payment_method: String, |
| 42 | pub fingerprint: Option<String>, |
| 43 | pub brand: Option<String>, |
| 44 | pub last4: Option<String>, |
| 45 | /// `credit`, `debit`, `prepaid` or `unknown`. |
| 46 | pub funding: Option<String>, |
| 47 | pub country: Option<String>, |
| 48 | } |
| 49 | |
| 50 | /// g1t's settings for Stripe's hosted billing page. |
| 51 | #[derive(Debug, Deserialize)] |
| 52 | pub struct PortalConfiguration { |
| 53 | pub id: String, |
| 54 | #[serde(default)] |
| 55 | pub login_page: Option<LoginPage>, |
| 56 | #[serde(default)] |
| 57 | pub metadata: Option<std::collections::HashMap<String, String>>, |
| 58 | } |
| 59 | |
| 60 | #[derive(Debug, Deserialize)] |
| 61 | pub struct LoginPage { |
| 62 | pub url: Option<String>, |
| 63 | } |
| 64 | |
| 65 | /// A saved card's details. |
| 66 | #[derive(Debug, Deserialize)] |
| 67 | pub struct SavedCard { |
| 68 | pub brand: String, |
| 69 | pub last4: String, |
| 70 | pub exp_month: u32, |
| 71 | pub exp_year: u32, |
| 72 | } |
| 73 | |
| 74 | /// A monthly plan. |
| 75 | #[derive(Deserialize)] |
| 76 | pub struct StripeSubscription { |
| 77 | pub id: String, |
| 78 | /// `active`, `trialing`, `past_due`, `unpaid`, `canceled`, `incomplete`… |
| 79 | pub status: String, |
| 80 | #[serde(default)] |
| 81 | pub cancel_at_period_end: bool, |
| 82 | /// Unix seconds. Older API versions carry it here… |
| 83 | #[serde(default)] |
| 84 | pub current_period_end: Option<i64>, |
| 85 | /// …newer ones on each item. |
| 86 | #[serde(default)] |
| 87 | pub items: Option<Items>, |
| 88 | } |
| 89 | |
| 90 | #[derive(Deserialize)] |
| 91 | pub struct Items { |
| 92 | pub data: Vec<Item>, |
| 93 | } |
| 94 | |
| 95 | #[derive(Deserialize)] |
| 96 | pub struct Item { |
| 97 | #[serde(default)] |
| 98 | pub current_period_end: Option<i64>, |
| 99 | } |
| 100 | |
| 101 | impl StripeSubscription { |
| 102 | /// When the period paid for ends, in Unix seconds. |
| 103 | pub fn period_end(&self) -> Option<i64> { |
| 104 | self.current_period_end.or_else(|| { |
| 105 | self.items |
| 106 | .as_ref() |
| 107 | .and_then(|items| items.data.iter().filter_map(|item| item.current_period_end).max()) |
| 108 | }) |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | /// Percent-encodes a form value. |
| 113 | fn encode(value: &str) -> String { |
| 114 | let mut encoded = String::with_capacity(value.len()); |
| 115 | for byte in value.bytes() { |
| 116 | match byte { |
| 117 | b'A'..=b'Z' | b'a'..=b'z' | b'0'..=b'9' | b'-' | b'_' | b'.' | b'~' => { |
| 118 | encoded.push(byte as char); |
| 119 | } |
| 120 | _ => encoded.push_str(&format!("%{byte:02X}")), |
| 121 | } |
| 122 | } |
| 123 | encoded |
| 124 | } |
| 125 | |
| 126 | /// `name=value` pairs as a form body. |
| 127 | pub(crate) fn form(fields: &[(&str, String)]) -> String { |
| 128 | fields |
| 129 | .iter() |
| 130 | .map(|(name, value)| format!("{}={}", encode(name), encode(value))) |
| 131 | .collect::<Vec<_>>() |
| 132 | .join("&") |
| 133 | } |
| 134 | |
| 135 | impl Stripe { |
| 136 | pub fn new(key: String) -> Self { |
| 137 | Stripe { key } |
| 138 | } |
| 139 | |
| 140 | /// Whether the key is for real cards, not Stripe's test mode. |
| 141 | pub fn live(&self) -> bool { |
| 142 | is_live(&self.key) |
| 143 | } |
| 144 | |
| 145 | /// A GET of any Stripe resource, for the webhook handlers. |
| 146 | pub(crate) async fn get<T: for<'a> Deserialize<'a>>(&self, path: &str) -> Result<T> { |
| 147 | self.call(Method::Get, path, None).await |
| 148 | } |
| 149 | |
| 150 | /// A form POST to any Stripe resource. |
| 151 | pub(crate) async fn post<T: for<'a> Deserialize<'a>>(&self, path: &str, fields: &[(&str, String)]) -> Result<T> { |
| 152 | self.call(Method::Post, path, Some(form(fields))).await |
| 153 | } |
| 154 | |
| 155 | /// A form POST that Stripe does at most once for `key`, however often |
| 156 | /// it is sent. |
| 157 | pub(crate) async fn post_idempotent<T: for<'a> Deserialize<'a>>( |
| 158 | &self, |
| 159 | path: &str, |
| 160 | fields: &[(&str, String)], |
| 161 | key: &str, |
| 162 | ) -> Result<T> { |
| 163 | self.send(Method::Post, path, Some(form(fields)), Some(key)).await |
| 164 | } |
| 165 | |
| 166 | async fn call<T: for<'a> Deserialize<'a>>( |
| 167 | &self, |
| 168 | method: Method, |
| 169 | path: &str, |
| 170 | body: Option<String>, |
| 171 | ) -> Result<T> { |
| 172 | self.send(method, path, body, None).await |
| 173 | } |
| 174 | |
| 175 | async fn send<T: for<'a> Deserialize<'a>>( |
| 176 | &self, |
| 177 | method: Method, |
| 178 | path: &str, |
| 179 | body: Option<String>, |
| 180 | idempotency_key: Option<&str>, |
| 181 | ) -> Result<T> { |
| 182 | let headers = Headers::new(); |
| 183 | headers.set("authorization", &format!("Bearer {}", self.key))?; |
| 184 | if let Some(key) = idempotency_key { |
| 185 | headers.set("idempotency-key", key)?; |
| 186 | } |
| 187 | if body.is_some() { |
| 188 | headers.set("content-type", "application/x-www-form-urlencoded")?; |
| 189 | } |
| 190 | let mut init = RequestInit::new(); |
| 191 | init.with_method(method).with_headers(headers); |
| 192 | if let Some(body) = body { |
| 193 | init.with_body(Some(body.into())); |
| 194 | } |
| 195 | let request = Request::new_with_init(&format!("{API}{path}"), &init)?; |
| 196 | let mut response = Fetch::Request(request).send().await?; |
| 197 | if response.status_code() != 200 { |
| 198 | return Err(Error::RustError(format!( |
| 199 | "the card processor answered {}: {}", |
| 200 | response.status_code(), |
| 201 | response.text().await.unwrap_or_default() |
| 202 | ))); |
| 203 | } |
| 204 | response.json().await |
| 205 | } |
| 206 | |
| 207 | /// A customer for a workspace that has none yet. |
| 208 | pub async fn create_customer(&self, workspace: &str) -> Result<String> { |
| 209 | #[derive(Deserialize)] |
| 210 | struct Customer { |
| 211 | id: String, |
| 212 | } |
| 213 | let fields = [ |
| 214 | ("name", workspace.to_owned()), |
| 215 | ("metadata[workspace]", workspace.to_owned()), |
| 216 | ]; |
| 217 | let customer: Customer = self.call(Method::Post, "/customers", Some(form(&fields))).await?; |
| 218 | Ok(customer.id) |
| 219 | } |
| 220 | |
| 221 | /// A session on Stripe's hosted billing page (the customer portal) for |
| 222 | /// the customer, coming back to `return_url`. |
| 223 | pub async fn portal_session(&self, customer: &str, return_url: &str) -> Result<String> { |
| 224 | #[derive(Deserialize)] |
| 225 | struct Portal { |
| 226 | url: String, |
| 227 | } |
| 228 | let configuration = self.portal_configuration().await?; |
| 229 | let fields = [ |
| 230 | ("customer", customer.to_owned()), |
| 231 | ("return_url", return_url.to_owned()), |
| 232 | ("configuration", configuration.id), |
| 233 | ]; |
| 234 | let portal: Portal = self.call(Method::Post, "/billing_portal/sessions", Some(form(&fields))).await?; |
| 235 | Ok(portal.url) |
| 236 | } |
| 237 | |
| 238 | /// g1t's billing page settings at Stripe, made the first time they are |
| 239 | /// needed: cards, invoices, billing details, and a sign-in page. |
| 240 | pub async fn portal_configuration(&self) -> Result<PortalConfiguration> { |
| 241 | #[derive(Deserialize)] |
| 242 | struct List { |
| 243 | data: Vec<PortalConfiguration>, |
| 244 | } |
| 245 | let list: List = self |
| 246 | .call(Method::Get, "/billing_portal/configurations?active=true&limit=20", None) |
| 247 | .await?; |
| 248 | if let Some(existing) = list |
| 249 | .data |
| 250 | .into_iter() |
| 251 | .find(|c| c.metadata.as_ref().and_then(|m| m.get("g1t")).is_some()) |
| 252 | { |
| 253 | return Ok(existing); |
| 254 | } |
| 255 | let fields = [ |
| 256 | ("business_profile[headline]", "g1t billing: your card, invoices and billing details".to_owned()), |
| 257 | ("features[payment_method_update][enabled]", "true".to_owned()), |
| 258 | ("features[invoice_history][enabled]", "true".to_owned()), |
| 259 | ("features[customer_update][enabled]", "true".to_owned()), |
| 260 | ("features[customer_update][allowed_updates][0]", "email".to_owned()), |
| 261 | ("features[customer_update][allowed_updates][1]", "address".to_owned()), |
| 262 | ("features[customer_update][allowed_updates][2]", "name".to_owned()), |
| 263 | ("features[customer_update][allowed_updates][3]", "tax_id".to_owned()), |
| 264 | ("login_page[enabled]", "true".to_owned()), |
| 265 | ("metadata[g1t]", "billing".to_owned()), |
| 266 | ]; |
| 267 | self.call(Method::Post, "/billing_portal/configurations", Some(form(&fields))).await |
| 268 | } |
| 269 | |
| 270 | /// The customer's email at Stripe, if they gave one. |
| 271 | pub async fn customer_email(&self, customer: &str) -> Result<Option<String>> { |
| 272 | #[derive(Deserialize)] |
| 273 | struct Customer { |
| 274 | email: Option<String>, |
| 275 | } |
| 276 | let found: Customer = self.call(Method::Get, &format!("/customers/{}", encode(customer)), None).await?; |
| 277 | Ok(found.email) |
| 278 | } |
| 279 | |
| 280 | /// The customer's card, if one is saved. |
| 281 | pub async fn card(&self, customer: &str) -> Result<Option<SavedCard>> { |
| 282 | #[derive(Deserialize)] |
| 283 | struct Methods { |
| 284 | data: Vec<Method_>, |
| 285 | } |
| 286 | #[derive(Deserialize)] |
| 287 | struct Method_ { |
| 288 | card: Option<SavedCard>, |
| 289 | } |
| 290 | let methods: Methods = self |
| 291 | .call(Method::Get, &format!("/payment_methods?customer={}&type=card&limit=1", encode(customer)), None) |
| 292 | .await?; |
| 293 | Ok(methods.data.into_iter().next().and_then(|m| m.card)) |
| 294 | } |
| 295 | |
| 296 | /// Starts a page on which `amount_cents` is paid in advance: by card, |
| 297 | /// with 3-D Secure asked for wherever the card supports it, the card |
| 298 | /// kept for later charges; or, with `bank_transfer` and a customer, by |
| 299 | /// bank transfer to the account details Stripe gives, counted when the |
| 300 | /// money arrives. |
| 301 | pub async fn start_checkout( |
| 302 | &self, |
| 303 | workspace: &str, |
| 304 | amount_cents: u32, |
| 305 | customer: Option<&str>, |
| 306 | return_url: &str, |
| 307 | bank_transfer: bool, |
| 308 | ) -> Result<Session> { |
| 309 | let separator = if return_url.contains('?') { '&' } else { '?' }; |
| 310 | let mut fields = vec![("mode", "payment".to_owned())]; |
| 311 | if bank_transfer { |
| 312 | fields.extend([ |
| 313 | ("payment_method_types[0]", "customer_balance".to_owned()), |
| 314 | ("payment_method_options[customer_balance][funding_type]", "bank_transfer".to_owned()), |
| 315 | ("payment_method_options[customer_balance][bank_transfer][type]", "us_bank_transfer".to_owned()), |
| 316 | ]); |
| 317 | } else { |
| 318 | fields.extend([ |
| 319 | ("payment_method_types[0]", "card".to_owned()), |
| 320 | ("payment_method_options[card][request_three_d_secure]", "any".to_owned()), |
| 321 | ("payment_intent_data[setup_future_usage]", "off_session".to_owned()), |
| 322 | ]); |
| 323 | } |
| 324 | fields.extend([ |
| 325 | ( |
| 326 | "success_url", |
| 327 | // Stripe fills in the payment's id. |
| 328 | format!("{return_url}{separator}session={{CHECKOUT_SESSION_ID}}"), |
| 329 | ), |
| 330 | ("cancel_url", return_url.to_owned()), |
| 331 | ("client_reference_id", workspace.to_owned()), |
| 332 | ("metadata[workspace]", workspace.to_owned()), |
| 333 | ("line_items[0][quantity]", "1".to_owned()), |
| 334 | ("line_items[0][price_data][currency]", "usd".to_owned()), |
| 335 | ( |
| 336 | "line_items[0][price_data][unit_amount]", |
| 337 | amount_cents.to_string(), |
| 338 | ), |
| 339 | ( |
| 340 | "line_items[0][price_data][product_data][name]", |
| 341 | format!("g1t usage paid in advance for {workspace}"), |
| 342 | ), |
| 343 | ]); |
| 344 | match customer { |
| 345 | Some(customer) => fields.push(("customer", customer.to_owned())), |
| 346 | None => fields.push(("customer_creation", "always".to_owned())), |
| 347 | } |
| 348 | self.call(Method::Post, "/checkout/sessions", Some(form(&fields))) |
| 349 | .await |
| 350 | } |
| 351 | |
| 352 | /// Starts a page on which a feature's monthly plan is paid for by card. |
| 353 | pub async fn start_subscription( |
| 354 | &self, |
| 355 | workspace: &str, |
| 356 | feature: &str, |
| 357 | title: &str, |
| 358 | monthly_cents: u32, |
| 359 | customer: Option<&str>, |
| 360 | return_url: &str, |
| 361 | ) -> Result<Session> { |
| 362 | let separator = if return_url.contains('?') { '&' } else { '?' }; |
| 363 | let mut fields = vec![ |
| 364 | ("mode", "subscription".to_owned()), |
| 365 | ("payment_method_types[0]", "card".to_owned()), |
| 366 | ( |
| 367 | "success_url", |
| 368 | format!("{return_url}{separator}session={{CHECKOUT_SESSION_ID}}"), |
| 369 | ), |
| 370 | ("cancel_url", return_url.to_owned()), |
| 371 | ("client_reference_id", workspace.to_owned()), |
| 372 | ("metadata[workspace]", workspace.to_owned()), |
| 373 | ("metadata[feature]", feature.to_owned()), |
| 374 | ("subscription_data[metadata][workspace]", workspace.to_owned()), |
| 375 | ("subscription_data[metadata][feature]", feature.to_owned()), |
| 376 | ("line_items[0][quantity]", "1".to_owned()), |
| 377 | ("line_items[0][price_data][currency]", "usd".to_owned()), |
| 378 | ( |
| 379 | "line_items[0][price_data][unit_amount]", |
| 380 | monthly_cents.to_string(), |
| 381 | ), |
| 382 | ( |
| 383 | "line_items[0][price_data][recurring][interval]", |
| 384 | "month".to_owned(), |
| 385 | ), |
| 386 | ( |
| 387 | "line_items[0][price_data][product_data][name]", |
| 388 | format!("g1t {title} for {workspace}"), |
| 389 | ), |
| 390 | ]; |
| 391 | if let Some(customer) = customer { |
| 392 | fields.push(("customer", customer.to_owned())); |
| 393 | } |
| 394 | self.call(Method::Post, "/checkout/sessions", Some(form(&fields))) |
| 395 | .await |
| 396 | } |
| 397 | |
| 398 | /// Starts a page that saves and verifies a card, with 3-D Secure asked |
| 399 | /// for wherever the card supports it. Nothing is charged: the card's |
| 400 | /// bank sees at most a $0 or $1 authorization that is never captured. |
| 401 | pub async fn start_card_check(&self, workspace: &str, customer: &str, return_url: &str) -> Result<Session> { |
| 402 | let separator = if return_url.contains('?') { '&' } else { '?' }; |
| 403 | let fields = [ |
| 404 | ("mode", "setup".to_owned()), |
| 405 | ("customer", customer.to_owned()), |
| 406 | ("payment_method_types[0]", "card".to_owned()), |
| 407 | ("payment_method_options[card][request_three_d_secure]", "any".to_owned()), |
| 408 | ("success_url", format!("{return_url}{separator}card_check={{CHECKOUT_SESSION_ID}}")), |
| 409 | ("cancel_url", return_url.to_owned()), |
| 410 | ("client_reference_id", workspace.to_owned()), |
| 411 | ("metadata[workspace]", workspace.to_owned()), |
| 412 | ("metadata[purpose]", "card_check".to_owned()), |
| 413 | ("setup_intent_data[metadata][workspace]", workspace.to_owned()), |
| 414 | ("setup_intent_data[description]", format!("Card check for g1t workspace {workspace}; never charged")), |
| 415 | ]; |
| 416 | self.call(Method::Post, "/checkout/sessions", Some(form(&fields))).await |
| 417 | } |
| 418 | |
| 419 | /// What a card check's setup found, once it succeeded. |
| 420 | pub async fn checked_card(&self, setup_intent: &str) -> Result<Option<CheckedCard>> { |
| 421 | #[derive(Deserialize)] |
| 422 | struct Setup { |
| 423 | status: String, |
| 424 | payment_method: Option<String>, |
| 425 | } |
| 426 | #[derive(Deserialize)] |
| 427 | struct Card { |
| 428 | fingerprint: Option<String>, |
| 429 | brand: Option<String>, |
| 430 | last4: Option<String>, |
| 431 | funding: Option<String>, |
| 432 | country: Option<String>, |
| 433 | } |
| 434 | #[derive(Deserialize)] |
| 435 | struct PaymentMethod { |
| 436 | card: Option<Card>, |
| 437 | } |
| 438 | let setup: Setup = self.call(Method::Get, &format!("/setup_intents/{}", encode(setup_intent)), None).await?; |
| 439 | let (true, Some(method)) = (setup.status == "succeeded", setup.payment_method) else { return Ok(None) }; |
| 440 | let found: PaymentMethod = self.call(Method::Get, &format!("/payment_methods/{}", encode(&method)), None).await?; |
| 441 | let card = found.card; |
| 442 | Ok(Some(CheckedCard { |
| 443 | payment_method: method, |
| 444 | fingerprint: card.as_ref().and_then(|c| c.fingerprint.clone()), |
| 445 | brand: card.as_ref().and_then(|c| c.brand.clone()), |
| 446 | last4: card.as_ref().and_then(|c| c.last4.clone()), |
| 447 | funding: card.as_ref().and_then(|c| c.funding.clone()), |
| 448 | country: card.as_ref().and_then(|c| c.country.clone()), |
| 449 | })) |
| 450 | } |
| 451 | |
| 452 | /// Makes `payment_method` the card the customer's invoices are charged to. |
| 453 | pub async fn set_default_card(&self, customer: &str, payment_method: &str) -> Result<()> { |
| 454 | let _: serde_json::Value = self |
| 455 | .call( |
| 456 | Method::Post, |
| 457 | &format!("/customers/{}", encode(customer)), |
| 458 | Some(form(&[("invoice_settings[default_payment_method]", payment_method.to_owned())])), |
| 459 | ) |
| 460 | .await?; |
| 461 | Ok(()) |
| 462 | } |
| 463 | |
| 464 | /// The plan's product at Stripe, made the first time it is needed. |
| 465 | async fn plan_product(&self, title: &str) -> Result<String> { |
| 466 | #[derive(Deserialize)] |
| 467 | struct Product { |
| 468 | id: String, |
| 469 | #[serde(default)] |
| 470 | metadata: Option<std::collections::HashMap<String, String>>, |
| 471 | } |
| 472 | #[derive(Deserialize)] |
| 473 | struct List { |
| 474 | data: Vec<Product>, |
| 475 | } |
| 476 | let list: List = self.call(Method::Get, "/products?active=true&limit=100", None).await?; |
| 477 | let ours = |p: &Product| p.metadata.as_ref().and_then(|m| m.get("g1t")).map(String::as_str) == Some("plan"); |
| 478 | if let Some(found) = list.data.into_iter().find(ours) { |
| 479 | return Ok(found.id); |
| 480 | } |
| 481 | let created: Product = self |
| 482 | .call( |
| 483 | Method::Post, |
| 484 | "/products", |
| 485 | Some(form(&[("name", format!("{title} plan")), ("metadata[g1t]", "plan".to_owned())])), |
| 486 | ) |
| 487 | .await?; |
| 488 | Ok(created.id) |
| 489 | } |
| 490 | |
| 491 | /// Starts the monthly plan on a saved card, at once. Fails rather than |
| 492 | /// leaving it half-started when the card's bank wants the person again; |
| 493 | /// the caller then sends them to Stripe's page. |
| 494 | pub async fn subscribe_with_card( |
| 495 | &self, |
| 496 | workspace: &str, |
| 497 | feature: &str, |
| 498 | title: &str, |
| 499 | monthly_cents: u32, |
| 500 | customer: &str, |
| 501 | payment_method: &str, |
| 502 | ) -> Result<StripeSubscription> { |
| 503 | let product = self.plan_product(title).await?; |
| 504 | let fields = [ |
| 505 | ("customer", customer.to_owned()), |
| 506 | ("default_payment_method", payment_method.to_owned()), |
| 507 | ("payment_behavior", "error_if_incomplete".to_owned()), |
| 508 | ("items[0][price_data][currency]", "usd".to_owned()), |
| 509 | ("items[0][price_data][product]", product), |
| 510 | ("items[0][price_data][unit_amount]", monthly_cents.to_string()), |
| 511 | ("items[0][price_data][recurring][interval]", "month".to_owned()), |
| 512 | ("metadata[workspace]", workspace.to_owned()), |
| 513 | ("metadata[feature]", feature.to_owned()), |
| 514 | ("description", format!("{title} plan for {workspace}")), |
| 515 | ]; |
| 516 | self.call(Method::Post, "/subscriptions", Some(form(&fields))).await |
| 517 | } |
| 518 | |
| 519 | /// Ends a subscription now: one that never started properly. |
| 520 | pub async fn cancel_now(&self, id: &str) -> Result<StripeSubscription> { |
| 521 | self.call(Method::Delete, &format!("/subscriptions/{}", encode(id)), None).await |
| 522 | } |
| 523 | |
| 524 | pub async fn subscription(&self, id: &str) -> Result<StripeSubscription> { |
| 525 | self.call(Method::Get, &format!("/subscriptions/{}", encode(id)), None) |
| 526 | .await |
| 527 | } |
| 528 | |
| 529 | /// Ends a plan when its period does (`cancel` true), or takes that back. |
| 530 | pub async fn cancel_at_period_end(&self, id: &str, cancel: bool) -> Result<StripeSubscription> { |
| 531 | self.call( |
| 532 | Method::Post, |
| 533 | &format!("/subscriptions/{}", encode(id)), |
| 534 | Some(form(&[("cancel_at_period_end", cancel.to_string())])), |
| 535 | ) |
| 536 | .await |
| 537 | } |
| 538 | |
| 539 | pub async fn session(&self, id: &str) -> Result<Session> { |
| 540 | self.call( |
| 541 | Method::Get, |
| 542 | &format!("/checkout/sessions/{}", encode(id)), |
| 543 | None, |
| 544 | ) |
| 545 | .await |
| 546 | } |
| 547 | } |
| 548 | |
| 549 | /// Whether the processor said an id it was given does not exist, as when |
| 550 | /// g1t moves to another Stripe account and ids saved from the old one stay |
| 551 | /// behind. |
| 552 | pub(crate) fn is_missing(error: &Error) -> bool { |
| 553 | error.to_string().contains("resource_missing") |
| 554 | } |
| 555 | |
| 556 | pub(crate) fn is_live(key: &str) -> bool { |
| 557 | key.starts_with("sk_live_") || key.starts_with("rk_live_") |
| 558 | } |
| 559 | |
| 560 | #[cfg(test)] |
| 561 | mod tests { |
| 562 | use super::*; |
| 563 | |
| 564 | #[test] |
| 565 | fn form_values_are_percent_encoded() { |
| 566 | assert_eq!( |
| 567 | form(&[ |
| 568 | ( |
| 569 | "success_url", |
| 570 | "https://g1t.sh/a/-/billing?session={ID}".to_owned() |
| 571 | ), |
| 572 | ("line_items[0][quantity]", "1".to_owned()), |
| 573 | ]), |
| 574 | "success_url=https%3A%2F%2Fg1t.sh%2Fa%2F-%2Fbilling%3Fsession%3D%7BID%7D&line_items%5B0%5D%5Bquantity%5D=1" |
| 575 | ); |
| 576 | } |
| 577 | |
| 578 | #[test] |
| 579 | fn test_keys_are_not_live() { |
| 580 | assert!(is_live("sk_live_abc")); |
| 581 | assert!(!is_live("sk_test_abc")); |
| 582 | assert!(!is_live("")); |
| 583 | } |
| 584 | } |