extpay
Version:
The JavaScript library for https://extensionpay.com - payments for browser extensions, no server needed.
1,530 lines (1,424 loc) • 52.2 kB
JavaScript
var ExtPay = (function () {
'use strict';
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn) {
var module = { exports: {} };
return fn(module, module.exports), module.exports;
}
var browserPolyfill = createCommonjsModule(function (module, exports) {
(function (global, factory) {
{
factory(module);
}
})(typeof globalThis !== "undefined" ? globalThis : typeof self !== "undefined" ? self : commonjsGlobal, function (module) {
if (typeof browser === "undefined" || Object.getPrototypeOf(browser) !== Object.prototype) {
const CHROME_SEND_MESSAGE_CALLBACK_NO_RESPONSE_MESSAGE = "The message port closed before a response was received.";
const SEND_RESPONSE_DEPRECATION_WARNING = "Returning a Promise is the preferred way to send a reply from an onMessage/onMessageExternal listener, as the sendResponse will be removed from the specs (See https://developer.mozilla.org/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onMessage)"; // Wrapping the bulk of this polyfill in a one-time-use function is a minor
// optimization for Firefox. Since Spidermonkey does not fully parse the
// contents of a function until the first time it's called, and since it will
// never actually need to be called, this allows the polyfill to be included
// in Firefox nearly for free.
const wrapAPIs = extensionAPIs => {
// NOTE: apiMetadata is associated to the content of the api-metadata.json file
// at build time by replacing the following "include" with the content of the
// JSON file.
const apiMetadata = {
"alarms": {
"clear": {
"minArgs": 0,
"maxArgs": 1
},
"clearAll": {
"minArgs": 0,
"maxArgs": 0
},
"get": {
"minArgs": 0,
"maxArgs": 1
},
"getAll": {
"minArgs": 0,
"maxArgs": 0
}
},
"bookmarks": {
"create": {
"minArgs": 1,
"maxArgs": 1
},
"get": {
"minArgs": 1,
"maxArgs": 1
},
"getChildren": {
"minArgs": 1,
"maxArgs": 1
},
"getRecent": {
"minArgs": 1,
"maxArgs": 1
},
"getSubTree": {
"minArgs": 1,
"maxArgs": 1
},
"getTree": {
"minArgs": 0,
"maxArgs": 0
},
"move": {
"minArgs": 2,
"maxArgs": 2
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"removeTree": {
"minArgs": 1,
"maxArgs": 1
},
"search": {
"minArgs": 1,
"maxArgs": 1
},
"update": {
"minArgs": 2,
"maxArgs": 2
}
},
"browserAction": {
"disable": {
"minArgs": 0,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"enable": {
"minArgs": 0,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"getBadgeBackgroundColor": {
"minArgs": 1,
"maxArgs": 1
},
"getBadgeText": {
"minArgs": 1,
"maxArgs": 1
},
"getPopup": {
"minArgs": 1,
"maxArgs": 1
},
"getTitle": {
"minArgs": 1,
"maxArgs": 1
},
"openPopup": {
"minArgs": 0,
"maxArgs": 0
},
"setBadgeBackgroundColor": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"setBadgeText": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"setIcon": {
"minArgs": 1,
"maxArgs": 1
},
"setPopup": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"setTitle": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
}
},
"browsingData": {
"remove": {
"minArgs": 2,
"maxArgs": 2
},
"removeCache": {
"minArgs": 1,
"maxArgs": 1
},
"removeCookies": {
"minArgs": 1,
"maxArgs": 1
},
"removeDownloads": {
"minArgs": 1,
"maxArgs": 1
},
"removeFormData": {
"minArgs": 1,
"maxArgs": 1
},
"removeHistory": {
"minArgs": 1,
"maxArgs": 1
},
"removeLocalStorage": {
"minArgs": 1,
"maxArgs": 1
},
"removePasswords": {
"minArgs": 1,
"maxArgs": 1
},
"removePluginData": {
"minArgs": 1,
"maxArgs": 1
},
"settings": {
"minArgs": 0,
"maxArgs": 0
}
},
"commands": {
"getAll": {
"minArgs": 0,
"maxArgs": 0
}
},
"contextMenus": {
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"removeAll": {
"minArgs": 0,
"maxArgs": 0
},
"update": {
"minArgs": 2,
"maxArgs": 2
}
},
"cookies": {
"get": {
"minArgs": 1,
"maxArgs": 1
},
"getAll": {
"minArgs": 1,
"maxArgs": 1
},
"getAllCookieStores": {
"minArgs": 0,
"maxArgs": 0
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"set": {
"minArgs": 1,
"maxArgs": 1
}
},
"devtools": {
"inspectedWindow": {
"eval": {
"minArgs": 1,
"maxArgs": 2,
"singleCallbackArg": false
}
},
"panels": {
"create": {
"minArgs": 3,
"maxArgs": 3,
"singleCallbackArg": true
},
"elements": {
"createSidebarPane": {
"minArgs": 1,
"maxArgs": 1
}
}
}
},
"downloads": {
"cancel": {
"minArgs": 1,
"maxArgs": 1
},
"download": {
"minArgs": 1,
"maxArgs": 1
},
"erase": {
"minArgs": 1,
"maxArgs": 1
},
"getFileIcon": {
"minArgs": 1,
"maxArgs": 2
},
"open": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"pause": {
"minArgs": 1,
"maxArgs": 1
},
"removeFile": {
"minArgs": 1,
"maxArgs": 1
},
"resume": {
"minArgs": 1,
"maxArgs": 1
},
"search": {
"minArgs": 1,
"maxArgs": 1
},
"show": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
}
},
"extension": {
"isAllowedFileSchemeAccess": {
"minArgs": 0,
"maxArgs": 0
},
"isAllowedIncognitoAccess": {
"minArgs": 0,
"maxArgs": 0
}
},
"history": {
"addUrl": {
"minArgs": 1,
"maxArgs": 1
},
"deleteAll": {
"minArgs": 0,
"maxArgs": 0
},
"deleteRange": {
"minArgs": 1,
"maxArgs": 1
},
"deleteUrl": {
"minArgs": 1,
"maxArgs": 1
},
"getVisits": {
"minArgs": 1,
"maxArgs": 1
},
"search": {
"minArgs": 1,
"maxArgs": 1
}
},
"i18n": {
"detectLanguage": {
"minArgs": 1,
"maxArgs": 1
},
"getAcceptLanguages": {
"minArgs": 0,
"maxArgs": 0
}
},
"identity": {
"launchWebAuthFlow": {
"minArgs": 1,
"maxArgs": 1
}
},
"idle": {
"queryState": {
"minArgs": 1,
"maxArgs": 1
}
},
"management": {
"get": {
"minArgs": 1,
"maxArgs": 1
},
"getAll": {
"minArgs": 0,
"maxArgs": 0
},
"getSelf": {
"minArgs": 0,
"maxArgs": 0
},
"setEnabled": {
"minArgs": 2,
"maxArgs": 2
},
"uninstallSelf": {
"minArgs": 0,
"maxArgs": 1
}
},
"notifications": {
"clear": {
"minArgs": 1,
"maxArgs": 1
},
"create": {
"minArgs": 1,
"maxArgs": 2
},
"getAll": {
"minArgs": 0,
"maxArgs": 0
},
"getPermissionLevel": {
"minArgs": 0,
"maxArgs": 0
},
"update": {
"minArgs": 2,
"maxArgs": 2
}
},
"pageAction": {
"getPopup": {
"minArgs": 1,
"maxArgs": 1
},
"getTitle": {
"minArgs": 1,
"maxArgs": 1
},
"hide": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"setIcon": {
"minArgs": 1,
"maxArgs": 1
},
"setPopup": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"setTitle": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
},
"show": {
"minArgs": 1,
"maxArgs": 1,
"fallbackToNoCallback": true
}
},
"permissions": {
"contains": {
"minArgs": 1,
"maxArgs": 1
},
"getAll": {
"minArgs": 0,
"maxArgs": 0
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"request": {
"minArgs": 1,
"maxArgs": 1
}
},
"runtime": {
"getBackgroundPage": {
"minArgs": 0,
"maxArgs": 0
},
"getPlatformInfo": {
"minArgs": 0,
"maxArgs": 0
},
"openOptionsPage": {
"minArgs": 0,
"maxArgs": 0
},
"requestUpdateCheck": {
"minArgs": 0,
"maxArgs": 0
},
"sendMessage": {
"minArgs": 1,
"maxArgs": 3
},
"sendNativeMessage": {
"minArgs": 2,
"maxArgs": 2
},
"setUninstallURL": {
"minArgs": 1,
"maxArgs": 1
}
},
"sessions": {
"getDevices": {
"minArgs": 0,
"maxArgs": 1
},
"getRecentlyClosed": {
"minArgs": 0,
"maxArgs": 1
},
"restore": {
"minArgs": 0,
"maxArgs": 1
}
},
"storage": {
"local": {
"clear": {
"minArgs": 0,
"maxArgs": 0
},
"get": {
"minArgs": 0,
"maxArgs": 1
},
"getBytesInUse": {
"minArgs": 0,
"maxArgs": 1
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"set": {
"minArgs": 1,
"maxArgs": 1
}
},
"managed": {
"get": {
"minArgs": 0,
"maxArgs": 1
},
"getBytesInUse": {
"minArgs": 0,
"maxArgs": 1
}
},
"sync": {
"clear": {
"minArgs": 0,
"maxArgs": 0
},
"get": {
"minArgs": 0,
"maxArgs": 1
},
"getBytesInUse": {
"minArgs": 0,
"maxArgs": 1
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"set": {
"minArgs": 1,
"maxArgs": 1
}
}
},
"tabs": {
"captureVisibleTab": {
"minArgs": 0,
"maxArgs": 2
},
"create": {
"minArgs": 1,
"maxArgs": 1
},
"detectLanguage": {
"minArgs": 0,
"maxArgs": 1
},
"discard": {
"minArgs": 0,
"maxArgs": 1
},
"duplicate": {
"minArgs": 1,
"maxArgs": 1
},
"executeScript": {
"minArgs": 1,
"maxArgs": 2
},
"get": {
"minArgs": 1,
"maxArgs": 1
},
"getCurrent": {
"minArgs": 0,
"maxArgs": 0
},
"getZoom": {
"minArgs": 0,
"maxArgs": 1
},
"getZoomSettings": {
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"maxArgs": 1
},
"goBack": {
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"maxArgs": 1
},
"goForward": {
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"maxArgs": 1
},
"highlight": {
"minArgs": 1,
"maxArgs": 1
},
"insertCSS": {
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"maxArgs": 2
},
"move": {
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"maxArgs": 2
},
"query": {
"minArgs": 1,
"maxArgs": 1
},
"reload": {
"minArgs": 0,
"maxArgs": 2
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"removeCSS": {
"minArgs": 1,
"maxArgs": 2
},
"sendMessage": {
"minArgs": 2,
"maxArgs": 3
},
"setZoom": {
"minArgs": 1,
"maxArgs": 2
},
"setZoomSettings": {
"minArgs": 1,
"maxArgs": 2
},
"update": {
"minArgs": 1,
"maxArgs": 2
}
},
"topSites": {
"get": {
"minArgs": 0,
"maxArgs": 0
}
},
"webNavigation": {
"getAllFrames": {
"minArgs": 1,
"maxArgs": 1
},
"getFrame": {
"minArgs": 1,
"maxArgs": 1
}
},
"webRequest": {
"handlerBehaviorChanged": {
"minArgs": 0,
"maxArgs": 0
}
},
"windows": {
"create": {
"minArgs": 0,
"maxArgs": 1
},
"get": {
"minArgs": 1,
"maxArgs": 2
},
"getAll": {
"minArgs": 0,
"maxArgs": 1
},
"getCurrent": {
"minArgs": 0,
"maxArgs": 1
},
"getLastFocused": {
"minArgs": 0,
"maxArgs": 1
},
"remove": {
"minArgs": 1,
"maxArgs": 1
},
"update": {
"minArgs": 2,
"maxArgs": 2
}
}
};
if (Object.keys(apiMetadata).length === 0) {
throw new Error("api-metadata.json has not been included in browser-polyfill");
}
/**
* A WeakMap subclass which creates and stores a value for any key which does
* not exist when accessed, but behaves exactly as an ordinary WeakMap
* otherwise.
*
* @param {function} createItem
* A function which will be called in order to create the value for any
* key which does not exist, the first time it is accessed. The
* function receives, as its only argument, the key being created.
*/
class DefaultWeakMap extends WeakMap {
constructor(createItem, items = undefined) {
super(items);
this.createItem = createItem;
}
get(key) {
if (!this.has(key)) {
this.set(key, this.createItem(key));
}
return super.get(key);
}
}
/**
* Returns true if the given object is an object with a `then` method, and can
* therefore be assumed to behave as a Promise.
*
* @param {*} value The value to test.
* @returns {boolean} True if the value is thenable.
*/
const isThenable = value => {
return value && typeof value === "object" && typeof value.then === "function";
};
/**
* Creates and returns a function which, when called, will resolve or reject
* the given promise based on how it is called:
*
* - If, when called, `chrome.runtime.lastError` contains a non-null object,
* the promise is rejected with that value.
* - If the function is called with exactly one argument, the promise is
* resolved to that value.
* - Otherwise, the promise is resolved to an array containing all of the
* function's arguments.
*
* @param {object} promise
* An object containing the resolution and rejection functions of a
* promise.
* @param {function} promise.resolve
* The promise's resolution function.
* @param {function} promise.rejection
* The promise's rejection function.
* @param {object} metadata
* Metadata about the wrapped method which has created the callback.
* @param {integer} metadata.maxResolvedArgs
* The maximum number of arguments which may be passed to the
* callback created by the wrapped async function.
*
* @returns {function}
* The generated callback function.
*/
const makeCallback = (promise, metadata) => {
return (...callbackArgs) => {
if (extensionAPIs.runtime.lastError) {
promise.reject(extensionAPIs.runtime.lastError);
} else if (metadata.singleCallbackArg || callbackArgs.length <= 1 && metadata.singleCallbackArg !== false) {
promise.resolve(callbackArgs[0]);
} else {
promise.resolve(callbackArgs);
}
};
};
const pluralizeArguments = numArgs => numArgs == 1 ? "argument" : "arguments";
/**
* Creates a wrapper function for a method with the given name and metadata.
*
* @param {string} name
* The name of the method which is being wrapped.
* @param {object} metadata
* Metadata about the method being wrapped.
* @param {integer} metadata.minArgs
* The minimum number of arguments which must be passed to the
* function. If called with fewer than this number of arguments, the
* wrapper will raise an exception.
* @param {integer} metadata.maxArgs
* The maximum number of arguments which may be passed to the
* function. If called with more than this number of arguments, the
* wrapper will raise an exception.
* @param {integer} metadata.maxResolvedArgs
* The maximum number of arguments which may be passed to the
* callback created by the wrapped async function.
*
* @returns {function(object, ...*)}
* The generated wrapper function.
*/
const wrapAsyncFunction = (name, metadata) => {
return function asyncFunctionWrapper(target, ...args) {
if (args.length < metadata.minArgs) {
throw new Error(`Expected at least ${metadata.minArgs} ${pluralizeArguments(metadata.minArgs)} for ${name}(), got ${args.length}`);
}
if (args.length > metadata.maxArgs) {
throw new Error(`Expected at most ${metadata.maxArgs} ${pluralizeArguments(metadata.maxArgs)} for ${name}(), got ${args.length}`);
}
return new Promise((resolve, reject) => {
if (metadata.fallbackToNoCallback) {
// This API method has currently no callback on Chrome, but it return a promise on Firefox,
// and so the polyfill will try to call it with a callback first, and it will fallback
// to not passing the callback if the first call fails.
try {
target[name](...args, makeCallback({
resolve,
reject
}, metadata));
} catch (cbError) {
console.warn(`${name} API method doesn't seem to support the callback parameter, ` + "falling back to call it without a callback: ", cbError);
target[name](...args); // Update the API method metadata, so that the next API calls will not try to
// use the unsupported callback anymore.
metadata.fallbackToNoCallback = false;
metadata.noCallback = true;
resolve();
}
} else if (metadata.noCallback) {
target[name](...args);
resolve();
} else {
target[name](...args, makeCallback({
resolve,
reject
}, metadata));
}
});
};
};
/**
* Wraps an existing method of the target object, so that calls to it are
* intercepted by the given wrapper function. The wrapper function receives,
* as its first argument, the original `target` object, followed by each of
* the arguments passed to the original method.
*
* @param {object} target
* The original target object that the wrapped method belongs to.
* @param {function} method
* The method being wrapped. This is used as the target of the Proxy
* object which is created to wrap the method.
* @param {function} wrapper
* The wrapper function which is called in place of a direct invocation
* of the wrapped method.
*
* @returns {Proxy<function>}
* A Proxy object for the given method, which invokes the given wrapper
* method in its place.
*/
const wrapMethod = (target, method, wrapper) => {
return new Proxy(method, {
apply(targetMethod, thisObj, args) {
return wrapper.call(thisObj, target, ...args);
}
});
};
let hasOwnProperty = Function.call.bind(Object.prototype.hasOwnProperty);
/**
* Wraps an object in a Proxy which intercepts and wraps certain methods
* based on the given `wrappers` and `metadata` objects.
*
* @param {object} target
* The target object to wrap.
*
* @param {object} [wrappers = {}]
* An object tree containing wrapper functions for special cases. Any
* function present in this object tree is called in place of the
* method in the same location in the `target` object tree. These
* wrapper methods are invoked as described in {@see wrapMethod}.
*
* @param {object} [metadata = {}]
* An object tree containing metadata used to automatically generate
* Promise-based wrapper functions for asynchronous. Any function in
* the `target` object tree which has a corresponding metadata object
* in the same location in the `metadata` tree is replaced with an
* automatically-generated wrapper function, as described in
* {@see wrapAsyncFunction}
*
* @returns {Proxy<object>}
*/
const wrapObject = (target, wrappers = {}, metadata = {}) => {
let cache = Object.create(null);
let handlers = {
has(proxyTarget, prop) {
return prop in target || prop in cache;
},
get(proxyTarget, prop, receiver) {
if (prop in cache) {
return cache[prop];
}
if (!(prop in target)) {
return undefined;
}
let value = target[prop];
if (typeof value === "function") {
// This is a method on the underlying object. Check if we need to do
// any wrapping.
if (typeof wrappers[prop] === "function") {
// We have a special-case wrapper for this method.
value = wrapMethod(target, target[prop], wrappers[prop]);
} else if (hasOwnProperty(metadata, prop)) {
// This is an async method that we have metadata for. Create a
// Promise wrapper for it.
let wrapper = wrapAsyncFunction(prop, metadata[prop]);
value = wrapMethod(target, target[prop], wrapper);
} else {
// This is a method that we don't know or care about. Return the
// original method, bound to the underlying object.
value = value.bind(target);
}
} else if (typeof value === "object" && value !== null && (hasOwnProperty(wrappers, prop) || hasOwnProperty(metadata, prop))) {
// This is an object that we need to do some wrapping for the children
// of. Create a sub-object wrapper for it with the appropriate child
// metadata.
value = wrapObject(value, wrappers[prop], metadata[prop]);
} else if (hasOwnProperty(metadata, "*")) {
// Wrap all properties in * namespace.
value = wrapObject(value, wrappers[prop], metadata["*"]);
} else {
// We don't need to do any wrapping for this property,
// so just forward all access to the underlying object.
Object.defineProperty(cache, prop, {
configurable: true,
enumerable: true,
get() {
return target[prop];
},
set(value) {
target[prop] = value;
}
});
return value;
}
cache[prop] = value;
return value;
},
set(proxyTarget, prop, value, receiver) {
if (prop in cache) {
cache[prop] = value;
} else {
target[prop] = value;
}
return true;
},
defineProperty(proxyTarget, prop, desc) {
return Reflect.defineProperty(cache, prop, desc);
},
deleteProperty(proxyTarget, prop) {
return Reflect.deleteProperty(cache, prop);
}
}; // Per contract of the Proxy API, the "get" proxy handler must return the
// original value of the target if that value is declared read-only and
// non-configurable. For this reason, we create an object with the
// prototype set to `target` instead of using `target` directly.
// Otherwise we cannot return a custom object for APIs that
// are declared read-only and non-configurable, such as `chrome.devtools`.
//
// The proxy handlers themselves will still use the original `target`
// instead of the `proxyTarget`, so that the methods and properties are
// dereferenced via the original targets.
let proxyTarget = Object.create(target);
return new Proxy(proxyTarget, handlers);
};
/**
* Creates a set of wrapper functions for an event object, which handles
* wrapping of listener functions that those messages are passed.
*
* A single wrapper is created for each listener function, and stored in a
* map. Subsequent calls to `addListener`, `hasListener`, or `removeListener`
* retrieve the original wrapper, so that attempts to remove a
* previously-added listener work as expected.
*
* @param {DefaultWeakMap<function, function>} wrapperMap
* A DefaultWeakMap object which will create the appropriate wrapper
* for a given listener function when one does not exist, and retrieve
* an existing one when it does.
*
* @returns {object}
*/
const wrapEvent = wrapperMap => ({
addListener(target, listener, ...args) {
target.addListener(wrapperMap.get(listener), ...args);
},
hasListener(target, listener) {
return target.hasListener(wrapperMap.get(listener));
},
removeListener(target, listener) {
target.removeListener(wrapperMap.get(listener));
}
}); // Keep track if the deprecation warning has been logged at least once.
let loggedSendResponseDeprecationWarning = false;
const onMessageWrappers = new DefaultWeakMap(listener => {
if (typeof listener !== "function") {
return listener;
}
/**
* Wraps a message listener function so that it may send responses based on
* its return value, rather than by returning a sentinel value and calling a
* callback. If the listener function returns a Promise, the response is
* sent when the promise either resolves or rejects.
*
* @param {*} message
* The message sent by the other end of the channel.
* @param {object} sender
* Details about the sender of the message.
* @param {function(*)} sendResponse
* A callback which, when called with an arbitrary argument, sends
* that value as a response.
* @returns {boolean}
* True if the wrapped listener returned a Promise, which will later
* yield a response. False otherwise.
*/
return function onMessage(message, sender, sendResponse) {
let didCallSendResponse = false;
let wrappedSendResponse;
let sendResponsePromise = new Promise(resolve => {
wrappedSendResponse = function (response) {
if (!loggedSendResponseDeprecationWarning) {
console.warn(SEND_RESPONSE_DEPRECATION_WARNING, new Error().stack);
loggedSendResponseDeprecationWarning = true;
}
didCallSendResponse = true;
resolve(response);
};
});
let result;
try {
result = listener(message, sender, wrappedSendResponse);
} catch (err) {
result = Promise.reject(err);
}
const isResultThenable = result !== true && isThenable(result); // If the listener didn't returned true or a Promise, or called
// wrappedSendResponse synchronously, we can exit earlier
// because there will be no response sent from this listener.
if (result !== true && !isResultThenable && !didCallSendResponse) {
return false;
} // A small helper to send the message if the promise resolves
// and an error if the promise rejects (a wrapped sendMessage has
// to translate the message into a resolved promise or a rejected
// promise).
const sendPromisedResult = promise => {
promise.then(msg => {
// send the message value.
sendResponse(msg);
}, error => {
// Send a JSON representation of the error if the rejected value
// is an instance of error, or the object itself otherwise.
let message;
if (error && (error instanceof Error || typeof error.message === "string")) {
message = error.message;
} else {
message = "An unexpected error occurred";
}
sendResponse({
__mozWebExtensionPolyfillReject__: true,
message
});
}).catch(err => {
// Print an error on the console if unable to send the response.
console.error("Failed to send onMessage rejected reply", err);
});
}; // If the listener returned a Promise, send the resolved value as a
// result, otherwise wait the promise related to the wrappedSendResponse
// callback to resolve and send it as a response.
if (isResultThenable) {
sendPromisedResult(result);
} else {
sendPromisedResult(sendResponsePromise);
} // Let Chrome know that the listener is replying.
return true;
};
});
const wrappedSendMessageCallback = ({
reject,
resolve
}, reply) => {
if (extensionAPIs.runtime.lastError) {
// Detect when none of the listeners replied to the sendMessage call and resolve
// the promise to undefined as in Firefox.
// See https://github.com/mozilla/webextension-polyfill/issues/130
if (extensionAPIs.runtime.lastError.message === CHROME_SEND_MESSAGE_CALLBACK_NO_RESPONSE_MESSAGE) {
resolve();
} else {
reject(extensionAPIs.runtime.lastError);
}
} else if (reply && reply.__mozWebExtensionPolyfillReject__) {
// Convert back the JSON representation of the error into
// an Error instance.
reject(new Error(reply.message));
} else {
resolve(reply);
}
};
const wrappedSendMessage = (name, metadata, apiNamespaceObj, ...args) => {
if (args.length < metadata.minArgs) {
throw new Error(`Expected at least ${metadata.minArgs} ${pluralizeArguments(metadata.minArgs)} for ${name}(), got ${args.length}`);
}
if (args.length > metadata.maxArgs) {
throw new Error(`Expected at most ${metadata.maxArgs} ${pluralizeArguments(metadata.maxArgs)} for ${name}(), got ${args.length}`);
}
return new Promise((resolve, reject) => {
const wrappedCb = wrappedSendMessageCallback.bind(null, {
resolve,
reject
});
args.push(wrappedCb);
apiNamespaceObj.sendMessage(...args);
});
};
const staticWrappers = {
runtime: {
onMessage: wrapEvent(onMessageWrappers),
onMessageExternal: wrapEvent(onMessageWrappers),
sendMessage: wrappedSendMessage.bind(null, "sendMessage", {
minArgs: 1,
maxArgs: 3
})
},
tabs: {
sendMessage: wrappedSendMessage.bind(null, "sendMessage", {
minArgs: 2,
maxArgs: 3
})
}
};
const settingMetadata = {
clear: {
minArgs: 1,
maxArgs: 1
},
get: {
minArgs: 1,
maxArgs: 1
},
set: {
minArgs: 1,
maxArgs: 1
}
};
apiMetadata.privacy = {
network: {
"*": settingMetadata
},
services: {
"*": settingMetadata
},
websites: {
"*": settingMetadata
}
};
return wrapObject(extensionAPIs, staticWrappers, apiMetadata);
};
if (typeof chrome != "object" || !chrome || !chrome.runtime || !chrome.runtime.id) {
throw new Error("This script should only be loaded in a browser extension.");
} // The build process adds a UMD wrapper around this file, which makes the
// `module` variable available.
module.exports = wrapAPIs(chrome);
} else {
module.exports = browser;
}
});
});
// Sign up at https://extensionpay.com to use this library. AGPLv3 licensed.
// For running as a content script. Receive a message from the successful payments page
// and pass it on to the background page to query if the user has paid.
if (typeof window !== 'undefined') {
window.addEventListener('message', (event) => {
if (event.origin !== 'https://extensionpay.com') return;
if (event.source != window) return;
if (event.data === 'extpay-fetch-user' || event.data === 'extpay-trial-start') {
window.postMessage(`${event.data}-received`);
browserPolyfill.runtime.sendMessage(event.data);
}
}, false);
}
function ExtPay(extension_id) {
const HOST = `https://extensionpay.com`;
const EXTENSION_URL = `${HOST}/extension/${extension_id}`;
function timeout(ms) {
return new Promise(resolve => setTimeout(resolve, ms));
}
async function get(key) {
try {
return await browserPolyfill.storage.sync.get(key)
} catch(e) {
// if sync not available (like with Firefox temp addons), fall back to local
return await browserPolyfill.storage.local.get(key)
}
}
async function set(dict) {
try {
return await browserPolyfill.storage.sync.set(dict)
} catch(e) {
// if sync not available (like with Firefox temp addons), fall back to local
return await browserPolyfill.storage.local.set(dict)
}
}
// ----- start configuration checks
browserPolyfill.management && browserPolyfill.management.getSelf().then(async (ext_info) => {
if (!ext_info.permissions.includes('storage')) {
var permissions = ext_info.hostPermissions.concat(ext_info.permissions);
throw `ExtPay Setup Error: please include the "storage" permission in manifest.json["permissions"] or else ExtensionPay won't work correctly.
You can copy and paste this to your manifest.json file to fix this error:
"permissions": [
${permissions.map(x => `" ${x}"`).join(',\n')}${permissions.length > 0 ? ',' : ''}
"storage"
]
`
}
});
// ----- end configuration checks
// run on "install"
get(['extensionpay_installed_at', 'extensionpay_user']).then(async (storage) => {
if (storage.extensionpay_installed_at) return;
// Migration code: before v2.1 installedAt came from the server
// so use that stored datetime instead of making a new one.
const user = storage.extensionpay_user;
const date = user ? user.installedAt : (new Date()).toISOString();
await set({'extensionpay_installed_at': date});
});
const paid_callbacks = [];
const trial_callbacks = [];
async function create_key() {
var body = {};
var ext_info;
if (browserPolyfill.management) {
ext_info = await browserPolyfill.management.getSelf();
} else if (browserPolyfill.runtime) {
ext_info = await browserPolyfill.runtime.sendMessage('extpay-extinfo'); // ask background page for ext info
if (!ext_info) {
// Safari doesn't support browser.management for some reason
const is_dev_mode = !('update_url' in browserPolyfill.runtime.getManifest());
ext_info = {installType: is_dev_mode ? 'development' : 'normal'};
}
} else {
throw 'ExtPay needs to be run in a browser extension context'
}
if (ext_info.installType == 'development') {
body.development = true;
}
const resp = await fetch(`${EXTENSION_URL}/api/new-key`, {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-type': 'application/json',
},
body: JSON.stringify(body),
});
if (!resp.ok) {
throw resp.status, `${HOST}/home`
}
const api_key = await resp.json();
await set({extensionpay_api_key: api_key});
return api_key;
}
async function get_key() {
const storage = await get(['extensionpay_api_key']);
if (storage.extensionpay_api_key) {
return storage.extensionpay_api_key;
}
return null;
}
const datetime_re = /^\d\d\d\d-\d\d-\d\dT/;
async function fetch_user() {
var storage = await get(['extensionpay_user', 'extensionpay_installed_at']);
const api_key = await get_key();
if (!api_key) {
return {
paid: false,
paidAt: null,
installedAt: storage.extensionpay_installed_at ? new Date(storage.extensionpay_installed_at) : new Date(), // sometimes this function gets called before the initial install time can be flushed to storage
trialStartedAt: null,
}
}
const resp = await fetch(`${EXTENSION_URL}/api/v2/user?api_key=${api_key}`, {
method: 'GET',
headers: {
'Accept': 'application/json',
}
});
// TODO: think harder about error states and what users will want (bad connection, server error, id not found)
if (!resp.ok) throw 'ExtPay error while fetching user: '+(await resp.text())
const user_data = await resp.json();
const parsed_user = {};
for (var [key, value] of Object.entries(user_data)) {
if (value && value.match && value.match(datetime_re)) {
value = new Date(value);
}
parsed_user[key] = value;
}
parsed_user.installedAt = new Date(storage.extensionpay_installed_at);
if (parsed_user.paidAt) {
if (!storage.extensionpay_user || (storage.extensionpay_user && !storage.extensionpay_user.paidAt)) {
paid_callbacks.forEach(cb => cb(parsed_user));
}
}
if (parsed_user.trialStartedAt) {
if (!storage.extensionpay_user || (storage.extensionpay_user && !storage.extensionpay_user.trialStartedAt)) {
trial_callbacks.forEach(cb => cb(parsed_user));
}
}
await set({extensionpay_user: user_data});
return parsed_user;
}
async function get_plans() {
const resp = await fetch(`${EXTENSION_URL}/api/v2/current-plans`, {
method: 'GET',
headers: {
'Accept': 'application/json',
'Content-type': 'application/json',
},
});
if (!resp.ok) {
throw `ExtPay: HTTP error while getting plans. Received http code: ${resp.status}`
}
return await resp.json();
}
async function open_popup(url, width, height) {
if (browserPolyfill.windows && browserPolyfill.windows.create) {
const current_window = await browserPolyfill.windows.getCurrent();
// https://stackoverflow.com/a/68456858
const left = Math.round((current_window.width - width) * 0.5 + current_window.left);
const top = Math.round((current_window.height - height) * 0.5 + current_window.top);
try {
browserPolyfill.windows.create({
url: url,
type: "popup",
focused: true,
width,
height,
left,
top
});
} catch(e) {
// firefox doesn't support 'focused'
browserPolyfill.windows.create({
url: url,
type: "popup",
width,
height,
left,
top
});
}
} else {
// for opening from a content script
// https://developer.mozilla.org/en-US/docs/Web/API/Window/open
window.open(url, null, `toolbar=no,location=no,directories=no,status=no,menubar=no,width=${width},height=${height},left=450`);
}
}
async function open_payment_page(plan_nickname) {
var api_key = await get_key();
if (!api_key) {
api_key = await create_key();
}
let url = `${EXTENSION_URL}/choose-plan?api_key=${api_key}`;
if (plan_nickname) {
url = `${EXTENSION_URL}/choose-plan/${plan_nickname}?api_key=${api_key}`;
}
if (browserPolyfill.tabs && browserPolyfill.tabs.create) {
await browserPolyfill.tabs.create({url, active: true});
} else {
window.open(url, '_blank');
}
}
async function open_trial_page(period) {
// let user have period string like '1 week' e.g. "start your 1 week free trial"
var api_key = await get_key();
if (!api_key) {
api_key = await create_key();
}
var url = `${EXTENSION_URL}/trial?api_key=${api_key}`;
if (period) {
url += `&period=${period}`;
}
open_popup(url, 500, 700);
}
async function open_login_page() {
var api_key = await get_key();
if (!api_key) {
api_key = await create_key();
}
const url = `${EXTENSION_URL}/reactivate?api_key=${api_key}&back=choose-plan&v2`;
open_popup(url, 500, 800);
}
var polling = false;
async function poll_user_paid() {
// keep trying to fetch user in case stripe webhook is late
if (polling) return;
polling = true;
var user = await fetch_user();
for (var i=0; i < 2*60; ++i) {
if (user.paidAt) {
polling = false;
return user;
}
await timeout(1000);
user = await fetch_user();
}
polling = false;
}
return {
getUser: function() {
return fetch_user()
},
onPaid: {
addListener: function(callback) {
const content_script_template = `"content_scripts": [
{
"matches": ["${HOST}/*"],
"js": ["ExtPay.js"],
"run_at": "document_start"
}]`;
const manifest = browserPolyfill.runtime.getManifest();
if (!manifest.content_scripts) {
throw `ExtPay setup error: To use the onPaid callback handler, please include ExtPay as a content script in your manifest.json. You can copy the example below into your manifest.json or check the docs: https://github.com/Glench/ExtPay#2-configure-your-manifestjson
${content_script_template}`
}
const extpay_content_script_entry = manifest.content_scripts.find(obj => {
// removing port number because firefox ignores content scripts with port number
return obj.matches.includes(HOST.replace(':3000', '')+'/*')
});
if (!extpay_content_script_entry) {
throw `ExtPay setup error: To use the onPaid callback handler, please include ExtPay as a content script in your manifest.json matching "${HOST}/*". You can copy the example below into your manifest.json