('service', 'Service', errors);\n *\n * ...\n * throw error.create(Err.GENERIC);\n * ...\n * throw error.create(Err.FILE_NOT_FOUND, {'file': fileName});\n * ...\n * // Service: Could not file file: foo.txt (service/file-not-found).\n *\n * catch (e) {\n * assert(e.message === \"Could not find file: foo.txt.\");\n * if ((e as FirebaseError)?.code === 'service/file-not-found') {\n * console.log(\"Could not read file: \" + e['file']);\n * }\n * }\n */\nconst ERROR_NAME = 'FirebaseError';\n// Based on code from:\n// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Custom_Error_Types\nclass FirebaseError extends Error {\n constructor(\n /** The error code for this error. */\n code, message, \n /** Custom data for this error. */\n customData) {\n super(message);\n this.code = code;\n this.customData = customData;\n /** The custom name for all FirebaseErrors. */\n this.name = ERROR_NAME;\n // Fix For ES5\n // https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work\n // TODO(dlarocque): Replace this with `new.target`: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-2-2.html#support-for-newtarget\n // which we can now use since we no longer target ES5.\n Object.setPrototypeOf(this, FirebaseError.prototype);\n // Maintains proper stack trace for where our error was thrown.\n // Only available on V8.\n if (Error.captureStackTrace) {\n Error.captureStackTrace(this, ErrorFactory.prototype.create);\n }\n }\n}\nclass ErrorFactory {\n constructor(service, serviceName, errors) {\n this.service = service;\n this.serviceName = serviceName;\n this.errors = errors;\n }\n create(code, ...data) {\n const customData = data[0] || {};\n const fullCode = `${this.service}/${code}`;\n const template = this.errors[code];\n const message = template ? replaceTemplate(template, customData) : 'Error';\n // Service Name: Error message (service/code).\n const fullMessage = `${this.serviceName}: ${message} (${fullCode}).`;\n const error = new FirebaseError(fullCode, fullMessage, customData);\n return error;\n }\n}\nfunction replaceTemplate(template, data) {\n return template.replace(PATTERN, (_, key) => {\n const value = data[key];\n return value != null ? String(value) : `<${key}?>`;\n });\n}\nconst PATTERN = /\\{\\$([^}]+)}/g;\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Evaluates a JSON string into a javascript object.\n *\n * @param {string} str A string containing JSON.\n * @return {*} The javascript object representing the specified JSON.\n */\nfunction jsonEval(str) {\n return JSON.parse(str);\n}\n/**\n * Returns JSON representing a javascript object.\n * @param {*} data JavaScript object to be stringified.\n * @return {string} The JSON contents of the object.\n */\nfunction stringify(data) {\n return JSON.stringify(data);\n}\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Decodes a Firebase auth. token into constituent parts.\n *\n * Notes:\n * - May return with invalid / incomplete claims if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nconst decode = function (token) {\n let header = {}, claims = {}, data = {}, signature = '';\n try {\n const parts = token.split('.');\n header = jsonEval(base64Decode(parts[0]) || '');\n claims = jsonEval(base64Decode(parts[1]) || '');\n signature = parts[2];\n data = claims['d'] || {};\n delete claims['d'];\n }\n catch (e) { }\n return {\n header,\n claims,\n data,\n signature\n };\n};\n/**\n * Decodes a Firebase auth. token and checks the validity of its time-based claims. Will return true if the\n * token is within the time window authorized by the 'nbf' (not-before) and 'iat' (issued-at) claims.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nconst isValidTimestamp = function (token) {\n const claims = decode(token).claims;\n const now = Math.floor(new Date().getTime() / 1000);\n let validSince = 0, validUntil = 0;\n if (typeof claims === 'object') {\n if (claims.hasOwnProperty('nbf')) {\n validSince = claims['nbf'];\n }\n else if (claims.hasOwnProperty('iat')) {\n validSince = claims['iat'];\n }\n if (claims.hasOwnProperty('exp')) {\n validUntil = claims['exp'];\n }\n else {\n // token will expire after 24h by default\n validUntil = validSince + 86400;\n }\n }\n return (!!now &&\n !!validSince &&\n !!validUntil &&\n now >= validSince &&\n now <= validUntil);\n};\n/**\n * Decodes a Firebase auth. token and returns its issued at time if valid, null otherwise.\n *\n * Notes:\n * - May return null if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nconst issuedAtTime = function (token) {\n const claims = decode(token).claims;\n if (typeof claims === 'object' && claims.hasOwnProperty('iat')) {\n return claims['iat'];\n }\n return null;\n};\n/**\n * Decodes a Firebase auth. token and checks the validity of its format. Expects a valid issued-at time.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nconst isValidFormat = function (token) {\n const decoded = decode(token), claims = decoded.claims;\n return !!claims && typeof claims === 'object' && claims.hasOwnProperty('iat');\n};\n/**\n * Attempts to peer into an auth token and determine if it's an admin auth token by looking at the claims portion.\n *\n * Notes:\n * - May return a false negative if there's no native base64 decoding support.\n * - Doesn't check if the token is actually valid.\n */\nconst isAdmin = function (token) {\n const claims = decode(token).claims;\n return typeof claims === 'object' && claims['admin'] === true;\n};\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nfunction contains(obj, key) {\n return Object.prototype.hasOwnProperty.call(obj, key);\n}\nfunction safeGet(obj, key) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return obj[key];\n }\n else {\n return undefined;\n }\n}\nfunction isEmpty(obj) {\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n return false;\n }\n }\n return true;\n}\nfunction map(obj, fn, contextObj) {\n const res = {};\n for (const key in obj) {\n if (Object.prototype.hasOwnProperty.call(obj, key)) {\n res[key] = fn.call(contextObj, obj[key], key, obj);\n }\n }\n return res;\n}\n/**\n * Deep equal two objects. Support Arrays and Objects.\n */\nfunction deepEqual(a, b) {\n if (a === b) {\n return true;\n }\n const aKeys = Object.keys(a);\n const bKeys = Object.keys(b);\n for (const k of aKeys) {\n if (!bKeys.includes(k)) {\n return false;\n }\n const aProp = a[k];\n const bProp = b[k];\n if (isObject(aProp) && isObject(bProp)) {\n if (!deepEqual(aProp, bProp)) {\n return false;\n }\n }\n else if (aProp !== bProp) {\n return false;\n }\n }\n for (const k of bKeys) {\n if (!aKeys.includes(k)) {\n return false;\n }\n }\n return true;\n}\nfunction isObject(thing) {\n return thing !== null && typeof thing === 'object';\n}\n\n/**\n * @license\n * Copyright 2022 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Rejects if the given promise doesn't resolve in timeInMS milliseconds.\n * @internal\n */\nfunction promiseWithTimeout(promise, timeInMS = 2000) {\n const deferredPromise = new Deferred();\n setTimeout(() => deferredPromise.reject('timeout!'), timeInMS);\n promise.then(deferredPromise.resolve, deferredPromise.reject);\n return deferredPromise.promise;\n}\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Returns a querystring-formatted string (e.g. &arg=val&arg2=val2) from a\n * params object (e.g. {arg: 'val', arg2: 'val2'})\n * Note: You must prepend it with ? when adding it to a URL.\n */\nfunction querystring(querystringParams) {\n const params = [];\n for (const [key, value] of Object.entries(querystringParams)) {\n if (Array.isArray(value)) {\n value.forEach(arrayVal => {\n params.push(encodeURIComponent(key) + '=' + encodeURIComponent(arrayVal));\n });\n }\n else {\n params.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));\n }\n }\n return params.length ? '&' + params.join('&') : '';\n}\n/**\n * Decodes a querystring (e.g. ?arg=val&arg2=val2) into a params object\n * (e.g. {arg: 'val', arg2: 'val2'})\n */\nfunction querystringDecode(querystring) {\n const obj = {};\n const tokens = querystring.replace(/^\\?/, '').split('&');\n tokens.forEach(token => {\n if (token) {\n const [key, value] = token.split('=');\n obj[decodeURIComponent(key)] = decodeURIComponent(value);\n }\n });\n return obj;\n}\n/**\n * Extract the query string part of a URL, including the leading question mark (if present).\n */\nfunction extractQuerystring(url) {\n const queryStart = url.indexOf('?');\n if (!queryStart) {\n return '';\n }\n const fragmentStart = url.indexOf('#', queryStart);\n return url.substring(queryStart, fragmentStart > 0 ? fragmentStart : undefined);\n}\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @fileoverview SHA-1 cryptographic hash.\n * Variable names follow the notation in FIPS PUB 180-3:\n * http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf.\n *\n * Usage:\n * var sha1 = new sha1();\n * sha1.update(bytes);\n * var hash = sha1.digest();\n *\n * Performance:\n * Chrome 23: ~400 Mbit/s\n * Firefox 16: ~250 Mbit/s\n *\n */\n/**\n * SHA-1 cryptographic hash constructor.\n *\n * The properties declared here are discussed in the above algorithm document.\n * @constructor\n * @final\n * @struct\n */\nclass Sha1 {\n constructor() {\n /**\n * Holds the previous values of accumulated variables a-e in the compress_\n * function.\n * @private\n */\n this.chain_ = [];\n /**\n * A buffer holding the partially computed hash result.\n * @private\n */\n this.buf_ = [];\n /**\n * An array of 80 bytes, each a part of the message to be hashed. Referred to\n * as the message schedule in the docs.\n * @private\n */\n this.W_ = [];\n /**\n * Contains data needed to pad messages less than 64 bytes.\n * @private\n */\n this.pad_ = [];\n /**\n * @private {number}\n */\n this.inbuf_ = 0;\n /**\n * @private {number}\n */\n this.total_ = 0;\n this.blockSize = 512 / 8;\n this.pad_[0] = 128;\n for (let i = 1; i < this.blockSize; ++i) {\n this.pad_[i] = 0;\n }\n this.reset();\n }\n reset() {\n this.chain_[0] = 0x67452301;\n this.chain_[1] = 0xefcdab89;\n this.chain_[2] = 0x98badcfe;\n this.chain_[3] = 0x10325476;\n this.chain_[4] = 0xc3d2e1f0;\n this.inbuf_ = 0;\n this.total_ = 0;\n }\n /**\n * Internal compress helper function.\n * @param buf Block to compress.\n * @param offset Offset of the block in the buffer.\n * @private\n */\n compress_(buf, offset) {\n if (!offset) {\n offset = 0;\n }\n const W = this.W_;\n // get 16 big endian words\n if (typeof buf === 'string') {\n for (let i = 0; i < 16; i++) {\n // TODO(user): [bug 8140122] Recent versions of Safari for Mac OS and iOS\n // have a bug that turns the post-increment ++ operator into pre-increment\n // during JIT compilation. We have code that depends heavily on SHA-1 for\n // correctness and which is affected by this bug, so I've removed all uses\n // of post-increment ++ in which the result value is used. We can revert\n // this change once the Safari bug\n // (https://bugs.webkit.org/show_bug.cgi?id=109036) has been fixed and\n // most clients have been updated.\n W[i] =\n (buf.charCodeAt(offset) << 24) |\n (buf.charCodeAt(offset + 1) << 16) |\n (buf.charCodeAt(offset + 2) << 8) |\n buf.charCodeAt(offset + 3);\n offset += 4;\n }\n }\n else {\n for (let i = 0; i < 16; i++) {\n W[i] =\n (buf[offset] << 24) |\n (buf[offset + 1] << 16) |\n (buf[offset + 2] << 8) |\n buf[offset + 3];\n offset += 4;\n }\n }\n // expand to 80 words\n for (let i = 16; i < 80; i++) {\n const t = W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16];\n W[i] = ((t << 1) | (t >>> 31)) & 0xffffffff;\n }\n let a = this.chain_[0];\n let b = this.chain_[1];\n let c = this.chain_[2];\n let d = this.chain_[3];\n let e = this.chain_[4];\n let f, k;\n // TODO(user): Try to unroll this loop to speed up the computation.\n for (let i = 0; i < 80; i++) {\n if (i < 40) {\n if (i < 20) {\n f = d ^ (b & (c ^ d));\n k = 0x5a827999;\n }\n else {\n f = b ^ c ^ d;\n k = 0x6ed9eba1;\n }\n }\n else {\n if (i < 60) {\n f = (b & c) | (d & (b | c));\n k = 0x8f1bbcdc;\n }\n else {\n f = b ^ c ^ d;\n k = 0xca62c1d6;\n }\n }\n const t = (((a << 5) | (a >>> 27)) + f + e + k + W[i]) & 0xffffffff;\n e = d;\n d = c;\n c = ((b << 30) | (b >>> 2)) & 0xffffffff;\n b = a;\n a = t;\n }\n this.chain_[0] = (this.chain_[0] + a) & 0xffffffff;\n this.chain_[1] = (this.chain_[1] + b) & 0xffffffff;\n this.chain_[2] = (this.chain_[2] + c) & 0xffffffff;\n this.chain_[3] = (this.chain_[3] + d) & 0xffffffff;\n this.chain_[4] = (this.chain_[4] + e) & 0xffffffff;\n }\n update(bytes, length) {\n // TODO(johnlenz): tighten the function signature and remove this check\n if (bytes == null) {\n return;\n }\n if (length === undefined) {\n length = bytes.length;\n }\n const lengthMinusBlock = length - this.blockSize;\n let n = 0;\n // Using local instead of member variables gives ~5% speedup on Firefox 16.\n const buf = this.buf_;\n let inbuf = this.inbuf_;\n // The outer while loop should execute at most twice.\n while (n < length) {\n // When we have no data in the block to top up, we can directly process the\n // input buffer (assuming it contains sufficient data). This gives ~25%\n // speedup on Chrome 23 and ~15% speedup on Firefox 16, but requires that\n // the data is provided in large chunks (or in multiples of 64 bytes).\n if (inbuf === 0) {\n while (n <= lengthMinusBlock) {\n this.compress_(bytes, n);\n n += this.blockSize;\n }\n }\n if (typeof bytes === 'string') {\n while (n < length) {\n buf[inbuf] = bytes.charCodeAt(n);\n ++inbuf;\n ++n;\n if (inbuf === this.blockSize) {\n this.compress_(buf);\n inbuf = 0;\n // Jump to the outer loop so we use the full-block optimization.\n break;\n }\n }\n }\n else {\n while (n < length) {\n buf[inbuf] = bytes[n];\n ++inbuf;\n ++n;\n if (inbuf === this.blockSize) {\n this.compress_(buf);\n inbuf = 0;\n // Jump to the outer loop so we use the full-block optimization.\n break;\n }\n }\n }\n }\n this.inbuf_ = inbuf;\n this.total_ += length;\n }\n /** @override */\n digest() {\n const digest = [];\n let totalBits = this.total_ * 8;\n // Add pad 0x80 0x00*.\n if (this.inbuf_ < 56) {\n this.update(this.pad_, 56 - this.inbuf_);\n }\n else {\n this.update(this.pad_, this.blockSize - (this.inbuf_ - 56));\n }\n // Add # bits.\n for (let i = this.blockSize - 1; i >= 56; i--) {\n this.buf_[i] = totalBits & 255;\n totalBits /= 256; // Don't use bit-shifting here!\n }\n this.compress_(this.buf_);\n let n = 0;\n for (let i = 0; i < 5; i++) {\n for (let j = 24; j >= 0; j -= 8) {\n digest[n] = (this.chain_[i] >> j) & 255;\n ++n;\n }\n }\n return digest;\n }\n}\n\n/**\n * Helper to make a Subscribe function (just like Promise helps make a\n * Thenable).\n *\n * @param executor Function which can make calls to a single Observer\n * as a proxy.\n * @param onNoObservers Callback when count of Observers goes to zero.\n */\nfunction createSubscribe(executor, onNoObservers) {\n const proxy = new ObserverProxy(executor, onNoObservers);\n return proxy.subscribe.bind(proxy);\n}\n/**\n * Implement fan-out for any number of Observers attached via a subscribe\n * function.\n */\nclass ObserverProxy {\n /**\n * @param executor Function which can make calls to a single Observer\n * as a proxy.\n * @param onNoObservers Callback when count of Observers goes to zero.\n */\n constructor(executor, onNoObservers) {\n this.observers = [];\n this.unsubscribes = [];\n this.observerCount = 0;\n // Micro-task scheduling by calling task.then().\n this.task = Promise.resolve();\n this.finalized = false;\n this.onNoObservers = onNoObservers;\n // Call the executor asynchronously so subscribers that are called\n // synchronously after the creation of the subscribe function\n // can still receive the very first value generated in the executor.\n this.task\n .then(() => {\n executor(this);\n })\n .catch(e => {\n this.error(e);\n });\n }\n next(value) {\n this.forEachObserver((observer) => {\n observer.next(value);\n });\n }\n error(error) {\n this.forEachObserver((observer) => {\n observer.error(error);\n });\n this.close(error);\n }\n complete() {\n this.forEachObserver((observer) => {\n observer.complete();\n });\n this.close();\n }\n /**\n * Subscribe function that can be used to add an Observer to the fan-out list.\n *\n * - We require that no event is sent to a subscriber synchronously to their\n * call to subscribe().\n */\n subscribe(nextOrObserver, error, complete) {\n let observer;\n if (nextOrObserver === undefined &&\n error === undefined &&\n complete === undefined) {\n throw new Error('Missing Observer.');\n }\n // Assemble an Observer object when passed as callback functions.\n if (implementsAnyMethods(nextOrObserver, [\n 'next',\n 'error',\n 'complete'\n ])) {\n observer = nextOrObserver;\n }\n else {\n observer = {\n next: nextOrObserver,\n error,\n complete\n };\n }\n if (observer.next === undefined) {\n observer.next = noop;\n }\n if (observer.error === undefined) {\n observer.error = noop;\n }\n if (observer.complete === undefined) {\n observer.complete = noop;\n }\n const unsub = this.unsubscribeOne.bind(this, this.observers.length);\n // Attempt to subscribe to a terminated Observable - we\n // just respond to the Observer with the final error or complete\n // event.\n if (this.finalized) {\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n try {\n if (this.finalError) {\n observer.error(this.finalError);\n }\n else {\n observer.complete();\n }\n }\n catch (e) {\n // nothing\n }\n return;\n });\n }\n this.observers.push(observer);\n return unsub;\n }\n // Unsubscribe is synchronous - we guarantee that no events are sent to\n // any unsubscribed Observer.\n unsubscribeOne(i) {\n if (this.observers === undefined || this.observers[i] === undefined) {\n return;\n }\n delete this.observers[i];\n this.observerCount -= 1;\n if (this.observerCount === 0 && this.onNoObservers !== undefined) {\n this.onNoObservers(this);\n }\n }\n forEachObserver(fn) {\n if (this.finalized) {\n // Already closed by previous event....just eat the additional values.\n return;\n }\n // Since sendOne calls asynchronously - there is no chance that\n // this.observers will become undefined.\n for (let i = 0; i < this.observers.length; i++) {\n this.sendOne(i, fn);\n }\n }\n // Call the Observer via one of it's callback function. We are careful to\n // confirm that the observe has not been unsubscribed since this asynchronous\n // function had been queued.\n sendOne(i, fn) {\n // Execute the callback asynchronously\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n if (this.observers !== undefined && this.observers[i] !== undefined) {\n try {\n fn(this.observers[i]);\n }\n catch (e) {\n // Ignore exceptions raised in Observers or missing methods of an\n // Observer.\n // Log error to console. b/31404806\n if (typeof console !== 'undefined' && console.error) {\n console.error(e);\n }\n }\n }\n });\n }\n close(err) {\n if (this.finalized) {\n return;\n }\n this.finalized = true;\n if (err !== undefined) {\n this.finalError = err;\n }\n // Proxy is no longer needed - garbage collect references\n // eslint-disable-next-line @typescript-eslint/no-floating-promises\n this.task.then(() => {\n this.observers = undefined;\n this.onNoObservers = undefined;\n });\n }\n}\n/** Turn synchronous function into one called asynchronously. */\n// eslint-disable-next-line @typescript-eslint/ban-types\nfunction async(fn, onError) {\n return (...args) => {\n Promise.resolve(true)\n .then(() => {\n fn(...args);\n })\n .catch((error) => {\n if (onError) {\n onError(error);\n }\n });\n };\n}\n/**\n * Return true if the object passed in implements any of the named methods.\n */\nfunction implementsAnyMethods(obj, methods) {\n if (typeof obj !== 'object' || obj === null) {\n return false;\n }\n for (const method of methods) {\n if (method in obj && typeof obj[method] === 'function') {\n return true;\n }\n }\n return false;\n}\nfunction noop() {\n // do nothing\n}\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Check to make sure the appropriate number of arguments are provided for a public function.\n * Throws an error if it fails.\n *\n * @param fnName The function name\n * @param minCount The minimum number of arguments to allow for the function call\n * @param maxCount The maximum number of argument to allow for the function call\n * @param argCount The actual number of arguments provided.\n */\nconst validateArgCount = function (fnName, minCount, maxCount, argCount) {\n let argError;\n if (argCount < minCount) {\n argError = 'at least ' + minCount;\n }\n else if (argCount > maxCount) {\n argError = maxCount === 0 ? 'none' : 'no more than ' + maxCount;\n }\n if (argError) {\n const error = fnName +\n ' failed: Was called with ' +\n argCount +\n (argCount === 1 ? ' argument.' : ' arguments.') +\n ' Expects ' +\n argError +\n '.';\n throw new Error(error);\n }\n};\n/**\n * Generates a string to prefix an error message about failed argument validation\n *\n * @param fnName The function name\n * @param argName The name of the argument\n * @return The prefix to add to the error thrown for validation.\n */\nfunction errorPrefix(fnName, argName) {\n return `${fnName} failed: ${argName} argument `;\n}\n/**\n * @param fnName\n * @param argumentNumber\n * @param namespace\n * @param optional\n */\nfunction validateNamespace(fnName, namespace, optional) {\n if (optional && !namespace) {\n return;\n }\n if (typeof namespace !== 'string') {\n //TODO: I should do more validation here. We only allow certain chars in namespaces.\n throw new Error(errorPrefix(fnName, 'namespace') + 'must be a valid firebase namespace.');\n }\n}\nfunction validateCallback(fnName, argumentName, \n// eslint-disable-next-line @typescript-eslint/ban-types\ncallback, optional) {\n if (optional && !callback) {\n return;\n }\n if (typeof callback !== 'function') {\n throw new Error(errorPrefix(fnName, argumentName) + 'must be a valid function.');\n }\n}\nfunction validateContextObject(fnName, argumentName, context, optional) {\n if (optional && !context) {\n return;\n }\n if (typeof context !== 'object' || context === null) {\n throw new Error(errorPrefix(fnName, argumentName) + 'must be a valid context object.');\n }\n}\n\n/**\n * @license\n * Copyright 2017 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n// Code originally came from goog.crypt.stringToUtf8ByteArray, but for some reason they\n// automatically replaced '\\r\\n' with '\\n', and they didn't handle surrogate pairs,\n// so it's been modified.\n// Note that not all Unicode characters appear as single characters in JavaScript strings.\n// fromCharCode returns the UTF-16 encoding of a character - so some Unicode characters\n// use 2 characters in JavaScript. All 4-byte UTF-8 characters begin with a first\n// character in the range 0xD800 - 0xDBFF (the first character of a so-called surrogate\n// pair).\n// See http://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3\n/**\n * @param {string} str\n * @return {Array}\n */\nconst stringToByteArray = function (str) {\n const out = [];\n let p = 0;\n for (let i = 0; i < str.length; i++) {\n let c = str.charCodeAt(i);\n // Is this the lead surrogate in a surrogate pair?\n if (c >= 0xd800 && c <= 0xdbff) {\n const high = c - 0xd800; // the high 10 bits.\n i++;\n assert(i < str.length, 'Surrogate pair missing trail surrogate.');\n const low = str.charCodeAt(i) - 0xdc00; // the low 10 bits.\n c = 0x10000 + (high << 10) + low;\n }\n if (c < 128) {\n out[p++] = c;\n }\n else if (c < 2048) {\n out[p++] = (c >> 6) | 192;\n out[p++] = (c & 63) | 128;\n }\n else if (c < 65536) {\n out[p++] = (c >> 12) | 224;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n }\n else {\n out[p++] = (c >> 18) | 240;\n out[p++] = ((c >> 12) & 63) | 128;\n out[p++] = ((c >> 6) & 63) | 128;\n out[p++] = (c & 63) | 128;\n }\n }\n return out;\n};\n/**\n * Calculate length without actually converting; useful for doing cheaper validation.\n * @param {string} str\n * @return {number}\n */\nconst stringLength = function (str) {\n let p = 0;\n for (let i = 0; i < str.length; i++) {\n const c = str.charCodeAt(i);\n if (c < 128) {\n p++;\n }\n else if (c < 2048) {\n p += 2;\n }\n else if (c >= 0xd800 && c <= 0xdbff) {\n // Lead surrogate of a surrogate pair. The pair together will take 4 bytes to represent.\n p += 4;\n i++; // skip trail surrogate.\n }\n else {\n p += 3;\n }\n }\n return p;\n};\n\n/**\n * @license\n * Copyright 2019 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * The amount of milliseconds to exponentially increase.\n */\nconst DEFAULT_INTERVAL_MILLIS = 1000;\n/**\n * The factor to backoff by.\n * Should be a number greater than 1.\n */\nconst DEFAULT_BACKOFF_FACTOR = 2;\n/**\n * The maximum milliseconds to increase to.\n *\n * Visible for testing\n */\nconst MAX_VALUE_MILLIS = 4 * 60 * 60 * 1000; // Four hours, like iOS and Android.\n/**\n * The percentage of backoff time to randomize by.\n * See\n * http://go/safe-client-behavior#step-1-determine-the-appropriate-retry-interval-to-handle-spike-traffic\n * for context.\n *\n *
Visible for testing\n */\nconst RANDOM_FACTOR = 0.5;\n/**\n * Based on the backoff method from\n * https://github.com/google/closure-library/blob/master/closure/goog/math/exponentialbackoff.js.\n * Extracted here so we don't need to pass metadata and a stateful ExponentialBackoff object around.\n */\nfunction calculateBackoffMillis(backoffCount, intervalMillis = DEFAULT_INTERVAL_MILLIS, backoffFactor = DEFAULT_BACKOFF_FACTOR) {\n // Calculates an exponentially increasing value.\n // Deviation: calculates value from count and a constant interval, so we only need to save value\n // and count to restore state.\n const currBaseValue = intervalMillis * Math.pow(backoffFactor, backoffCount);\n // A random \"fuzz\" to avoid waves of retries.\n // Deviation: randomFactor is required.\n const randomWait = Math.round(\n // A fraction of the backoff value to add/subtract.\n // Deviation: changes multiplication order to improve readability.\n RANDOM_FACTOR *\n currBaseValue *\n // A random float (rounded to int by Math.round above) in the range [-1, 1]. Determines\n // if we add or subtract.\n (Math.random() - 0.5) *\n 2);\n // Limits backoff to max to avoid effectively permanent backoff.\n return Math.min(MAX_VALUE_MILLIS, currBaseValue + randomWait);\n}\n\n/**\n * @license\n * Copyright 2020 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Provide English ordinal letters after a number\n */\nfunction ordinal(i) {\n if (!Number.isFinite(i)) {\n return `${i}`;\n }\n return i + indicator(i);\n}\nfunction indicator(i) {\n i = Math.abs(i);\n const cent = i % 100;\n if (cent >= 10 && cent <= 20) {\n return 'th';\n }\n const dec = i % 10;\n if (dec === 1) {\n return 'st';\n }\n if (dec === 2) {\n return 'nd';\n }\n if (dec === 3) {\n return 'rd';\n }\n return 'th';\n}\n\n/**\n * @license\n * Copyright 2021 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\nfunction getModularInstance(service) {\n if (service && service._delegate) {\n return service._delegate;\n }\n else {\n return service;\n }\n}\n\n/**\n * @license\n * Copyright 2025 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * Checks whether host is a cloud workstation or not.\n * @public\n */\nfunction isCloudWorkstation(url) {\n // `isCloudWorkstation` is called without protocol in certain connect*Emulator functions\n // In HTTP request builders, it's called with the protocol.\n // If called with protocol prefix, it's a valid URL, so we extract the hostname\n // If called without, we assume the string is the hostname.\n try {\n const host = url.startsWith('http://') || url.startsWith('https://')\n ? new URL(url).hostname\n : url;\n return host.endsWith('.cloudworkstations.dev');\n }\n catch {\n return false;\n }\n}\n/**\n * Makes a fetch request to the given server.\n * Mostly used for forwarding cookies in Firebase Studio.\n * @public\n */\nasync function pingServer(endpoint) {\n const result = await fetch(endpoint, {\n credentials: 'include'\n });\n return result.ok;\n}\n\n/**\n * @license\n * Copyright 2025 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/**\n * @public\n * Generates a SHA-256 hash for the given input string.\n *\n * @param input The string to hash.\n * @returns A promise that resolves to the SHA-256 hash as a hex string.\n */\nasync function generateSHA256Hash(input) {\n const textEncoder = new TextEncoder();\n const data = textEncoder.encode(input);\n const hashBuffer = await crypto.subtle.digest('SHA-256', data);\n // Convert ArrayBuffer to hex string\n const hashArray = Array.from(new Uint8Array(hashBuffer));\n const hexHash = hashArray.map(b => b.toString(16).padStart(2, '0')).join('');\n return hexHash;\n}\n\nexport { CONSTANTS, DecodeBase64StringError, Deferred, ErrorFactory, FirebaseError, MAX_VALUE_MILLIS, RANDOM_FACTOR, Sha1, areCookiesEnabled, assert, assertionError, async, base64, base64Decode, base64Encode, base64urlEncodeWithoutPadding, calculateBackoffMillis, contains, createMockUserToken, createSubscribe, decode, deepCopy, deepEqual, deepExtend, errorPrefix, extractQuerystring, generateSHA256Hash, getDefaultAppConfig, getDefaultEmulatorHost, getDefaultEmulatorHostnameAndPort, getDefaults, getExperimentalSetting, getGlobal, getModularInstance, getUA, isAdmin, isBrowser, isBrowserExtension, isCloudWorkstation, isCloudflareWorker, isElectron, isEmpty, isIE, isIndexedDBAvailable, isMobileCordova, isNode, isNodeSdk, isReactNative, isSafari, isSafariOrWebkit, isUWP, isValidFormat, isValidTimestamp, isWebWorker, issuedAtTime, jsonEval, map, ordinal, pingServer, promiseWithTimeout, querystring, querystringDecode, safeGet, stringLength, stringToByteArray, stringify, validateArgCount, validateCallback, validateContextObject, validateIndexedDBOpenable, validateNamespace };\n//# sourceMappingURL=index.esm.js.map\n","import { PACKAGE_VERSION } from './version.js';\n\n// Version-independent name of this application, used for Firebase app name and shown to users\n// (about page, youth-mode copy).\nexport const BASE_APP_NAME = 'MeetingIM';\n// Name of this application, used in the User-Agent.\nexport const APP_NAME = BASE_APP_NAME + '/' + (PACKAGE_VERSION || '0.25');\n\n// API key. Use https://github.com/tinode/chat/tree/master/keygen to generate your own.\n// Injected at build time via webpack DefinePlugin from the TINODE_API_KEY env var\n// (see webpack.config.js and .env.local). Falls back to the public sample key when unset,\n// which only works against a backend still using the matching sample API_KEY_SALT.\nexport const API_KEY = process.env.TINODE_API_KEY || 'AQEAAAABAAD_rAp4DJh05a1HAwFT3A6K';\n\n// The array of possible hosts to connect to.\nexport const KNOWN_HOSTS = {hosted: 'web.tinode.co', local: 'localhost:6060'};\n\n// Default host name and port to connect to.\nexport const DEFAULT_HOST = KNOWN_HOSTS.hosted;\n\n// Enable console logging.\nexport const LOGGING_ENABLED = true;\n\n// Minimum time between two keypress notifications, milliseconds.\nexport const KEYPRESS_DELAY = 3_000;\n// Delay before sending a read notification, milliseconds.\nexport const READ_DELAY = 1_500;\n\n// The default shortest allowed tag length. Matches the value on the server.\nexport const MIN_TAG_LENGTH = 2;\n// The default greatest allowed tag length. Matches the value on the server.\nexport const MAX_TAG_LENGTH = 96;\n// The default maximum number of tags allowed. Matches the value on the server.\nexport const MAX_TAG_COUNT = 16;\n\n// Access mode for P2P subscriptions initiated by the current user.\nexport const DEFAULT_P2P_ACCESS_MODE = 'JRWPS';\n// Access mode for new group topics created by the current user.\nexport const NEW_GRP_ACCESS_MODE = 'JRWPSAO';\n// Access mode for a channel.\nexport const CHANNEL_ACCESS_MODE = 'JR';\n\n// Access mode for no access.\nexport const NO_ACCESS_MODE = 'N';\n\n// Mediaquery breakpoint between desktop and mobile, in px. Should match the value\n// in @media (max-size: 640px) in base.css\nexport const MEDIA_BREAKPOINT = 640;\n// Size of css 'rem' unit in pixels. Default 1rem = 10pt = 13px.\nexport const REM_SIZE = 13;\n\n// Size of the avatar image: when image dimensions are greater or the image is not square, it's resized to\n// a square of this size or less.\nexport const AVATAR_SIZE = 384;\n\n// Maximum size of an avatar in bytes for sending in-band. Bigger avatars will be sent out of band (as uploads).\nexport const MAX_AVATAR_BYTES = 4096;\n\n// Size of the broken_image shown in MessagesView\nexport const BROKEN_IMAGE_SIZE = 32;\n\n// Size of video preview when dimensions are missing.\nexport const NO_DIMENSIONS_VIDEO = 128;\n\n// Number of chat messages to fetch in one call.\nexport const MESSAGES_PAGE = 24;\n\n// Default maximum in-band (included directly into the message) attachment size which fits into\n// a message of 256K in size. Used when the server-provided value is unavailable. The actual\n// binary size of the attachment should be smaller due to base64 encoding expansion and some overhead,\n// for instance 1024 bytes.\n// Increase this limit to a greater value in production, if desired. Also increase\n// max_message_size in the server config.\nexport const MAX_INBAND_ATTACHMENT_SIZE = 262_144;\n\n// Default absolute maximum attachment size to be used with the server = 8MB.\n// Used when the server-provided value is unavailable. Increase to something like 100MB in production.\nexport const MAX_EXTERN_ATTACHMENT_SIZE = 1 << 23;\n\n// Maximum allowed linear dimension (pixels) of an image sent inline. Larger images will be shrunk\n// to make the larger dimension fit under this size. You may want to adjust it to 1600 or\n// 2400 for production.\nexport const MAX_IMAGE_DIM = 1024;\n\n// Linear dimensions of image preview: shrink image under this size for previews.\nexport const IMAGE_PREVIEW_DIM = 64;\n\n// Linear dimensions of video screencapture: shrink image under this size for previews.\nexport const VIDEO_PREVIEW_DIM = 96;\n\n// Linear dimensions of image thumbnail: shrink image under this size for thumbnails in reply quote previews.\nexport const IMAGE_THUMBNAIL_DIM = 36;\n// Width of video thumbnail: allow it to be wider, but not taller. Use IMAGE_THUMBNAIL_DIM for height.\nexport const VIDEO_THUMBNAIL_WIDTH = 48;\n\n// Maximum number of online users to be shown in a topic title bar. Others will be\n// hidden under \"+X more\"\nexport const MAX_ONLINE_IN_TOPIC = 4;\n\n// Maximum length of user name, topic title, and private comment.\nexport const MAX_TITLE_LENGTH = 60;\n// Maximum length of topic description.\nexport const MAX_TOPIC_DESCRIPTION_LENGTH = 360;\n// Maximum length of user name when displaying a video call.\nexport const MAX_PEER_TITLE_LENGTH = 24;\n\n// Length of message previews in chat list, in characters.\nexport const MESSAGE_PREVIEW_LENGTH = 80;\n\n// Length of a quote in quoted reply (for outgoing messages).\nexport const QUOTED_REPLY_LENGTH = 30;\n// Length of a preview of a forwarded message.\nexport const FORWARDED_PREVIEW_LENGTH = 84;\n// Length of preview for a message being edited.\nexport const EDIT_PREVIEW_LENGTH = 48;\n\n// Minimum duration of an audio recording in milliseconds (2 sec).\nexport const MIN_DURATION = 2_000;\n// Maximum duration of an audio recording in milliseconds (10 min).\nexport const MAX_DURATION = 600_000;\n\n// Link for \"Contact Us\".\nexport const LINK_CONTACT_US = 'mailto:support@tinode.co';\n\n// Link to Privacy Policy.\nexport const LINK_PRIVACY_POLICY = 'https://tinode.co/privacy.html';\n\n// Link to Terms of Service.\nexport const LINK_TERMS_OF_SERVICE = 'https://tinode.co/terms.html';\n\n// When user starts a P2P topic, automatic subscription does not\n// happen until the first message. Setting this option to true enables\n// immediate subscription.\nexport const IMMEDIATE_P2P_SUBSCRIPTION = false;\n\n// URL schemes permitted to appear in links (i.e. no javascript: scheme).\nexport const CLICKABLE_URL_SCHEMES = ['http', 'https', 'ftp', 'ftps'];\n\n// Size of the QR code in the app.\nexport const QRCODE_SIZE = 128;\n\n// How much time has to pass to consider computer awoken from sleep (80 sec).\n// Chrome throttles ticker events in inactive tabs to once per minute. This\n// value ensures that these once-a-minute events do not trigger a reconnect.\nexport const WAKE_UP_TIMEOUT = 80000;\n// Timer interval between checks if computer woke up from sleep (1 sec).\nexport const WAKE_UP_TICK = 1000;\n\n// Swipe distance to register as a gesture, in pixels.\nexport const MIN_SWIPE_DISTANCE = REM_SIZE * 3;\n\n// Self-topic avatar as an SVG icon encoded as data URI\nexport const SELF_AVATAR_URI = 'data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0idXRmLTgiPz48c3ZnIHZpZXdCb3g9IjAgMCAxNyAxNyIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48cGF0aCBkPSJNMy41NjIgMXYxNS40NTlsNC42ODYtMy4yNyA0Ljc1MiAzLjI2di0xNS40NDloLTkuNDM4ek0xMiAxNC41NTFsLTMuNzU2LTIuNTc4LTMuNjgxIDIuNTY4di0xMi41NDFoNy40Mzd2MTIuNTUxeiIgZmlsbD0iIzU1NTU1NSIgLz48L3N2Zz4=' // eslint-disable-line max-len\n\n// Toast display duration, milliseconds.\nexport const TOAST_DURATION = 3_000;\n\n// Initial/default color scheme.\nexport const DEFAULT_COLOR_SCHEME = 'auto';\n\n// Default text size in points.\nexport const DEFAULT_TEXT_SIZE = 10;\n\n// MIME type for the legacy Drafty form-response data.\nexport const DRAFTY_FR_MIME_TYPE_LEGACY = 'application/json'; // Remove in 2026.\n\n// Path to wallpaper images.\nexport const WALLPAPER_DEFAULTS = {type: 'patt', index: 0, path:'img/bkg/'};\n","// Video call states.\nexport const CALL_STATE_NONE = 0;\nexport const CALL_STATE_OUTGOING_INITATED = 1;\nexport const CALL_STATE_INCOMING_RECEIVED = 2;\nexport const CALL_STATE_IN_PROGRESS = 3;\n\n// Video call message headers representing call state.\nexport const CALL_HEAD_STARTED = 'started';\n\n","// File and image helper functions.\nimport { TheCard } from 'tinode-sdk';\n\n// Supported image MIME types and corresponding file extensions.\nexport const SUPPORTED_IMAGE_FORMATS = ['image/jpeg', 'image/gif', 'image/png', 'image/svg', 'image/svg+xml'];\nexport const MIME_EXTENSIONS = ['jpg', 'gif', 'png', 'svg', 'svg'];\n\n// Get an URL from a theCard photo: either create a data: URL or return reference URL.\nexport function makeImageUrl(photo) {\n if (photo && typeof photo == 'object') {\n if (photo.ref) {\n return photo.ref\n }\n if (photo.data && photo.type) {\n const mime = photo.type.startsWith('image/') ? photo.type : ('image/' + photo.type);\n return 'data:' + mime + ';base64,' + photo.data;\n }\n }\n return null;\n}\n\n// Calculate linear dimensions for scaling image down to fit under a certain size.\n// Returns an object which contains destination sizes, source sizes, and offsets\n// into source (when making square images).\nexport function fitImageSize(width, height, maxWidth, maxHeight, forceSquare) {\n // Sanitize input\n width = width | 0;\n height = height | 0;\n maxWidth = maxWidth | 0;\n maxHeight = maxHeight | 0;\n\n if (width <= 0 || height <= 0 || maxWidth <= 0 || maxHeight <= 0) {\n return null;\n }\n\n if (forceSquare) {\n maxWidth = maxHeight = Math.min(maxWidth, maxHeight);\n }\n\n const scale = Math.min(\n Math.min(width, maxWidth) / width,\n Math.min(height, maxHeight) / height\n );\n\n const size = {\n dstWidth: (width * scale) | 0,\n dstHeight: (height * scale) | 0,\n };\n\n if (forceSquare) {\n // Also calculate parameters for making the image square.\n size.dstWidth = size.dstHeight = Math.min(size.dstWidth, size.dstHeight);\n size.srcWidth = size.srcHeight = Math.min(width, height);\n size.xoffset = ((width - size.srcWidth) / 2) | 0;\n size.yoffset = ((height - size.srcWidth) / 2) | 0;\n } else {\n size.xoffset = size.yoffset = 0;\n size.srcWidth = width;\n size.srcHeight = height;\n }\n return size;\n}\n\n// Ensure file's extension matches mime content type\nexport function fileNameForMime(fname, mime) {\n const idx = SUPPORTED_IMAGE_FORMATS.indexOf(mime);\n if (idx < 0 || !fname) {\n // Unknown mime or empty name.\n return fname;\n }\n const ext = MIME_EXTENSIONS[idx];\n\n const at = fname.lastIndexOf('.');\n if (at >= 0) {\n fname = fname.substring(0, at);\n }\n return fname + '.' + ext;\n}\n\n// Scale uploaded image to fit under certain dimensions and byte size, optionally constraining to a square.\n// Returns a promise which is resolven on success or rejected on failure.\nexport function imageScaled(fileOrBlob, maxWidth, maxHeight, maxSize, forceSquare) {\n return new Promise((resolve, reject) => {\n const img = new Image();\n img.crossOrigin = 'Anonymous';\n img.onerror = function(err) {\n reject(new Error(\"Image format unrecognized\"));\n }\n img.onload = async function() {\n // Once the image is loaded, the URL is no longer needed.\n URL.revokeObjectURL(img.src);\n\n // Calculate the desired image dimensions.\n const dim = fitImageSize(img.width, img.height, maxWidth, maxHeight, forceSquare);\n if (!dim) {\n reject(new Error(\"Invalid image\"));\n return;\n }\n let canvas = document.createElement('canvas');\n canvas.width = dim.dstWidth;\n canvas.height = dim.dstHeight;\n let ctx = canvas.getContext('2d');\n ctx.imageSmoothingEnabled = true;\n ctx.drawImage(img, dim.xoffset, dim.yoffset, dim.srcWidth, dim.srcHeight,\n 0, 0, dim.dstWidth, dim.dstHeight);\n\n const mime = SUPPORTED_IMAGE_FORMATS.includes(fileOrBlob.type) ? fileOrBlob.type : 'image/jpeg';\n // Generate blob to check size of the image.\n let blob = await new Promise(resolve => canvas.toBlob(resolve, mime));\n if (!blob) {\n reject(new Error(\"Unsupported image format\"));\n return;\n }\n // Ensure the image is not too large. Shrink the image keeping the aspect ratio.\n // Do nothing if maxsize is <= 0.\n while (maxSize > 0 && blob.length > maxSize) {\n dim.dstWidth = (dim.dstWidth * 0.70710678118) | 0;\n dim.dstHeight = (dim.dstHeight * 0.70710678118) | 0;\n canvas.width = dim.dstWidth;\n canvas.height = dim.dstHeight;\n ctx = canvas.getContext('2d');\n ctx.clearRect(0, 0, canvas.width, canvas.height);\n ctx.drawImage(img, dim.xoffset, dim.yoffset, dim.srcWidth, dim.srcHeight,\n 0, 0, dim.dstWidth, dim.dstHeight);\n blob = await new Promise(resolve => canvas.toBlob(resolve, mime));\n }\n\n canvas = null;\n resolve({mime: mime, blob: blob, width: dim.dstWidth, height: dim.dstHeight, name: fileNameForMime(fileOrBlob.name, mime)});\n };\n img.src = URL.createObjectURL(fileOrBlob);\n });\n}\n\n// Scale and crop image according to specified dimensions.\n// The coordinates are in unscaled image pixels, i.e. cut the rectangle first then scale it.\n// returns a promise.\nexport function imageCrop(mime, objURL, left, top, width, height, scale) {\n return new Promise((resolve, reject) => {\n const img = new Image();\n img.crossOrigin = 'Anonymous';\n img.onerror = _ => {\n reject(new Error(\"Image format unrecognized\"));\n };\n img.onload = _ => {\n // Once the image is loaded, the URL is no longer needed.\n URL.revokeObjectURL(img.src);\n\n let canvas = document.createElement('canvas');\n canvas.width = width * scale;\n canvas.height = height * scale;\n let ctx = canvas.getContext('2d');\n ctx.imageSmoothingEnabled = true;\n ctx.drawImage(img, left, top, width, height, 0, 0, canvas.width, canvas.height);\n\n mime = SUPPORTED_IMAGE_FORMATS.includes(mime) ? mime : 'image/jpeg';\n // Generate blob to check size of the image.\n canvas.toBlob((blob) => {\n // Allow GC.\n canvas = null;\n if (blob) {\n resolve({mime: mime, blob: blob, width: width, height: height});\n } else {\n reject(new Error(\"Unsupported image format\"));\n }\n }, mime);\n };\n img.src = objURL;\n });\n}\n\n// Convert file to base64 string.\nexport function fileToBase64(file) {\n return new Promise((resolve, reject) => {\n const reader = new FileReader();\n reader.onerror = _ => {\n reject(reader.error);\n };\n reader.onload = _ => {\n resolve({mime: file.type, bits: reader.result.split(',')[1], name: file.name});\n };\n reader.readAsDataURL(file);\n });\n}\n\n// Convert Blob to base64 string. Returns a promise resolved with the base64 string and mime.\nexport function blobToBase64(blob) {\n return new Promise((resolve, reject) => {\n const reader = new FileReader();\n reader.onerror = _ => {\n reject(reader.error);\n };\n reader.onload = _ => {\n resolve({mime: blob.type, bits: reader.result.split(',')[1]});\n };\n reader.readAsDataURL(blob);\n });\n}\n\n// File pasted from the clipboard. It's either an inline image or a file attachment.\nexport function filePasted(event, onImageSuccess, onAttachmentSuccess, onError) {\n const items = (event.clipboardData || event.originalEvent.clipboardData || {}).items;\n if (!items || !items.length) {\n return false;\n }\n\n for (let i in items) {\n const item = items[i];\n if (item.kind === 'file') {\n const file = item.getAsFile();\n if (!file) {\n console.error(\"Failed to get file object from pasted file item\", item.kind, item.type);\n onError(\"Failed to get file object from pasted file item\");\n continue;\n }\n if (file.type && file.type.split('/')[0] == 'image') {\n onImageSuccess(file);\n } else {\n onAttachmentSuccess(file);\n }\n // Indicate that the pasted data contains a file.\n return true;\n }\n }\n // No file found.\n return false;\n}\n\n// Get mime type from data URL header.\nexport function getMimeType(header) {\n const mime = /^data:(image\\/[-+a-z0-9.]+);base64/.exec(header);\n return (mime && mime.length > 1) ? mime[1] : null;\n}\n\n// Given length of a binary object in bytes, calculate the length after\n// base64 encoding.\nexport function base64EncodedLen(n) {\n return Math.floor((n + 2) / 3) * 4;\n}\n\n// Given length of a base64-encoded object, calculate decoded size of the\n// pbject in bytes.\nexport function base64DecodedLen(n) {\n return Math.floor(n / 4) * 3;\n}\n\n// Re-encode string to standard base64 encoding with padding.\n// The string may be base64-URL encoded without the padding.\nexport function base64ReEncode(str) {\n if (str) {\n str = str.replace(/-/g, '+').replace(/_/g, '/');\n try {\n str = btoa(atob(str));\n } catch(err) {\n console.error(\"Failed to base64 re-encode string.\", err);\n str = null;\n }\n }\n return str;\n}\n\n// Convert a base64 encoded string with the provided mime type into a Blob.\nexport function base64ToBlob(str, mime) {\n if (!str) {\n return null;\n }\n\n try {\n // Make blob.\n const bin = atob(str);\n const length = bin.length;\n const buf = new ArrayBuffer(length);\n const arr = new Uint8Array(buf);\n for (let i = 0; i < length; i++) {\n arr[i] = bin.charCodeAt(i);\n }\n\n return new Blob([buf], { type: mime });\n } catch(err) {\n console.error(\"Failed to convert base64 to blob: \", err);\n }\n\n return null;\n}\n\nexport function intArrayToBase64(arr) {\n if (!Array.isArray(arr)) {\n return null;\n }\n try {\n let bin = '';\n new Uint8Array(arr).forEach(b => bin += String.fromCharCode(b));\n return window.btoa(bin);\n } catch (err) {}\n return null;\n}\n\nexport function base64ToIntArray(b64) {\n const arr = [];\n try {\n const bin = window.atob(b64);\n [...bin].forEach(c => {\n arr.push(c.charCodeAt(0));\n });\n return arr;\n } catch (err) {}\n return null;\n}\n\nexport function importVCard(fileOrBlob) {\n return new Promise((resolve, reject) => {\n const reader = new FileReader();\n reader.onerror = _ => {\n reject(reader.error);\n };\n reader.onload = _ => {\n const card = TheCard.importVCard(reader.result);\n if (!card) {\n reject(new Error(\"Failed to parse vCard\"));\n return;\n }\n resolve(card);\n };\n reader.readAsText(fileOrBlob);\n });\n}\n","import React from 'react';\nimport { defineMessages } from 'react-intl';\n\nimport { Drafty, TheCard } from 'tinode-sdk';\n\nimport AudioPlayer from '../widgets/audio-player.jsx'\nimport CallMessage from '../widgets/call-message.jsx'\nimport CallStatus from '../widgets/call-status.jsx';\nimport InlineVideo from '../widgets/inline-video.jsx';\nimport LazyImage from '../widgets/lazy-image.jsx';\nimport TheCardMini from '../widgets/the-card-mini.jsx';\nimport UploadingImage from '../widgets/uploading-image.jsx'\n\nimport { BROKEN_IMAGE_SIZE, CLICKABLE_URL_SCHEMES, IMAGE_THUMBNAIL_DIM, NO_DIMENSIONS_VIDEO,\n REM_SIZE, VIDEO_THUMBNAIL_WIDTH } from '../config.js';\nimport { base64ToBlob, blobToBase64, fitImageSize, imageScaled } from './blob-helpers.js';\nimport { idToColorClass, secondsToTime, shortenFileName } from './strformat.js';\nimport { cancelablePromise, sanitizeUrl, sanitizeUrlForMime } from './utils.js';\n\nconst messages = defineMessages({\n drafty_form: {\n id: 'drafty_form',\n defaultMessage: 'Form: ',\n description: 'Comment for form in Drafty'\n },\n drafty_attachment: {\n id: 'drafty_attachment',\n defaultMessage: 'Attachment',\n description: 'Comment for attachment in Drafty'\n },\n drafty_image: {\n id: 'drafty_image',\n defaultMessage: 'Picture',\n description: 'Comment for embedded images in Drafty'\n },\n drafty_video: {\n id: 'drafty_video',\n defaultMessage: 'Video recording',\n description: 'Comment for videos embedded in Drafty'\n },\n drafty_unknown: {\n id: 'drafty_unknown',\n defaultMessage: 'Unsupported',\n description: 'Unsupported entity in drafty'\n }\n});\n\n// The main Drafty formatter: converts Drafty elements into React classes. 'this' is set by the caller.\n// 'this' must contain:\n// viewportWidth:\n// authorizeURL:\n// onHandleClick:\nexport function fullFormatter(style, data, values, key, stack) {\n if (stack.includes('QQ')) {\n return quoteFormatter.call(this, style, data, values, key);\n }\n\n if (!style) {\n // Unformatted.\n return values;\n }\n\n let el = Drafty.tagName(style);\n let attr = Drafty.attrValue(style, data) || {};\n attr.key = key;\n switch (style) {\n case 'AU':\n // Show audio player.\n if (attr.src) {\n attr.src = this.authorizeURL(sanitizeUrlForMime(attr.src, 'audio'));\n attr.duration = data.duration > 0 ? (data.duration | 0) : undefined;\n attr.preview = data.preview;\n attr.loading = 'lazy';\n // 4.9 语音未读红点：chat-message.jsx 的 onVoicePlayed 记录\"这条语音真的被点开听过\"，\n // 跟消息本身有没有被标记已读是两件事。favorites/history 等别处复用同一个 formatter\n // context 没有这个字段时，attr.onPlay 就是 undefined，AudioPlayer 那边本来就把它当\n // 可选 prop 处理，不会因此出问题。\n attr.onPlay = this.onVoicePlayed;\n }\n el = AudioPlayer;\n // Audio element cannot have content.\n values = null;\n break;\n case 'BR':\n values = null;\n break;\n case 'EX':\n // Ignore.\n break;\n case 'HL':\n // Highlighted text. Assign class name.\n attr.className = 'highlight';\n break;\n case 'HD':\n el = null;\n values = null;\n break;\n case 'IM':\n // Additional processing for images\n el = handleImageData.call(this, el, data, attr);\n // Image element cannot have content.\n values = null;\n break;\n case 'BN':\n // Button\n attr.onClick = (e) => this.onHandleClick(e, 'form_button');\n let inner = React.Children.map(values, (child) => {\n return typeof child == 'string' ? child : undefined;\n });\n if (!inner || inner.length == 0) {\n inner = [attr.name]\n }\n // Get text which will be sent back when the button is clicked.\n attr['data-title'] = inner.join('');\n break;\n case 'LN':\n if (attr) {\n // Ensure only safe URL schemes are clickable.\n attr.href = typeof attr.href == 'string' ? sanitizeUrl(attr.href, CLICKABLE_URL_SCHEMES) : '';\n }\n break;\n case 'MN':\n // Mention\n attr.className = 'mention'\n if (data) {\n attr.className += ' ' + idToColorClass(data.val, false, true);\n }\n break;\n case 'FM':\n // Form\n attr.className = 'bot-form';\n break;\n case 'RW':\n // Form element formatting is dependent on element content.\n break;\n case 'QQ':\n // Quote/citation.\n attr.className = 'reply-quote'\n attr.onClick = (e) => this.onHandleClick(e, 'quote');\n break;\n case 'TC':\n // TheCard\n el = TheCardMini;\n attr.content = data;\n attr.authorizeURL = this.authorizeURL;\n attr.onChatClick = (e) => this.onHandleClick(e, 'contact_chat');\n attr.onFindClick = (e) => this.onHandleClick(e, 'contact_find');\n values = null;\n break;\n case 'VC':\n el = CallMessage;\n // Video call messages do not have content.\n values = null;\n if (data) {\n attr.callState = data.state;\n attr.incoming = data.incoming;\n attr.duration = data.duration;\n }\n break;\n case 'VD':\n // Additional processing for videos.\n el = handleVideoData.call(this, el, data, attr);\n // Video element cannot have content.\n values = null;\n break;\n default:\n if (!el) {\n // Unknown element.\n el = React.Fragment;\n attr = {key: key};\n // Generate comment for unknown element.\n let body = values;\n if (!Array.isArray(values) || !values.join('').trim()) {\n body = [React.createElement('span',\n {key: 'x1', className: 'gray'},\n this.formatMessage(messages.drafty_unknown)\n )];\n }\n values = [React.createElement('i',\n {key: 'x0', className: 'material-icons gray'},\n 'extension'\n ), ' '].concat(body);\n }\n break;\n }\n if (!el) {\n return values;\n }\n return React.createElement(el, attr, values);\n}\n\n// Additional processing of image data.\nfunction handleImageData(el, data, attr) {\n if (!data) {\n attr.src = 'img/broken_image.png';\n attr.style = {\n width: IMAGE_THUMBNAIL_DIM + 'px',\n height: IMAGE_THUMBNAIL_DIM + 'px',\n };\n return el;\n }\n\n attr.className = 'inline-image';\n const dim = fitImageSize(data.width, data.height,\n this.viewportWidth > 0 ? Math.min(this.viewportWidth - REM_SIZE * 6.5, REM_SIZE * 34.5) :\n REM_SIZE * 34.5, REM_SIZE * 24, false) ||\n {dstWidth: BROKEN_IMAGE_SIZE, dstHeight: BROKEN_IMAGE_SIZE};\n attr.style = {\n width: dim.dstWidth + 'px',\n height: dim.dstHeight + 'px',\n // Looks like a Chrome bug: broken image does not respect 'width' and 'height'.\n minWidth: dim.dstWidth + 'px',\n minHeight: dim.dstHeight + 'px'\n };\n if (!Drafty.isProcessing(data)) {\n attr.src = this.authorizeURL(sanitizeUrlForMime(attr.src, 'image'));\n attr.alt = data.name;\n if (attr.src) {\n if (Math.max(data.width || 0, data.height || 0) > IMAGE_THUMBNAIL_DIM) {\n // Allow previews for large enough images.\n attr.onClick = (e) => this.onHandleClick(e, 'image');\n attr.className += ' image-clickable';\n }\n attr.loading = 'lazy';\n } else {\n attr.src = null;\n }\n } else {\n // Use custom element instead of ![]()
or