modified-dicom-pacs
Version:
A modified version of DICOM PACS implementation
1,535 lines (1,338 loc) • 61 kB
JavaScript
this.workbox = this.workbox || {};
this.workbox.core = (function (exports) {
'use strict';
try {
self['workbox:core:5.1.4'] && _();
} catch (e) {}
/*
Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const logger = (() => {
// Don't overwrite this value if it's already set.
// See https://github.com/GoogleChrome/workbox/pull/2284#issuecomment-560470923
if (!('__WB_DISABLE_DEV_LOGS' in self)) {
self.__WB_DISABLE_DEV_LOGS = false;
}
let inGroup = false;
const methodToColorMap = {
debug: `#7f8c8d`,
log: `#2ecc71`,
warn: `#f39c12`,
error: `#c0392b`,
groupCollapsed: `#3498db`,
groupEnd: null
};
const print = function (method, args) {
if (self.__WB_DISABLE_DEV_LOGS) {
return;
}
if (method === 'groupCollapsed') {
// Safari doesn't print all console.groupCollapsed() arguments:
// https://bugs.webkit.org/show_bug.cgi?id=182754
if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
console[method](...args);
return;
}
}
const styles = [`background: ${methodToColorMap[method]}`, `border-radius: 0.5em`, `color: white`, `font-weight: bold`, `padding: 2px 0.5em`]; // When in a group, the workbox prefix is not displayed.
const logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];
console[method](...logPrefix, ...args);
if (method === 'groupCollapsed') {
inGroup = true;
}
if (method === 'groupEnd') {
inGroup = false;
}
};
const api = {};
const loggerMethods = Object.keys(methodToColorMap);
for (const key of loggerMethods) {
const method = key;
api[method] = (...args) => {
print(method, args);
};
}
return api;
})();
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const messages = {
'invalid-value': ({
paramName,
validValueDescription,
value
}) => {
if (!paramName || !validValueDescription) {
throw new Error(`Unexpected input to 'invalid-value' error.`);
}
return `The '${paramName}' parameter was given a value with an ` + `unexpected value. ${validValueDescription} Received a value of ` + `${JSON.stringify(value)}.`;
},
'not-an-array': ({
moduleName,
className,
funcName,
paramName
}) => {
if (!moduleName || !className || !funcName || !paramName) {
throw new Error(`Unexpected input to 'not-an-array' error.`);
}
return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className}.${funcName}()' must be an array.`;
},
'incorrect-type': ({
expectedType,
paramName,
moduleName,
className,
funcName
}) => {
if (!expectedType || !paramName || !moduleName || !funcName) {
throw new Error(`Unexpected input to 'incorrect-type' error.`);
}
return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className ? className + '.' : ''}` + `${funcName}()' must be of type ${expectedType}.`;
},
'incorrect-class': ({
expectedClass,
paramName,
moduleName,
className,
funcName,
isReturnValueProblem
}) => {
if (!expectedClass || !moduleName || !funcName) {
throw new Error(`Unexpected input to 'incorrect-class' error.`);
}
if (isReturnValueProblem) {
return `The return value from ` + `'${moduleName}.${className ? className + '.' : ''}${funcName}()' ` + `must be an instance of class ${expectedClass.name}.`;
}
return `The parameter '${paramName}' passed into ` + `'${moduleName}.${className ? className + '.' : ''}${funcName}()' ` + `must be an instance of class ${expectedClass.name}.`;
},
'missing-a-method': ({
expectedMethod,
paramName,
moduleName,
className,
funcName
}) => {
if (!expectedMethod || !paramName || !moduleName || !className || !funcName) {
throw new Error(`Unexpected input to 'missing-a-method' error.`);
}
return `${moduleName}.${className}.${funcName}() expected the ` + `'${paramName}' parameter to expose a '${expectedMethod}' method.`;
},
'add-to-cache-list-unexpected-type': ({
entry
}) => {
return `An unexpected entry was passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' The entry ` + `'${JSON.stringify(entry)}' isn't supported. You must supply an array of ` + `strings with one or more characters, objects with a url property or ` + `Request objects.`;
},
'add-to-cache-list-conflicting-entries': ({
firstEntry,
secondEntry
}) => {
if (!firstEntry || !secondEntry) {
throw new Error(`Unexpected input to ` + `'add-to-cache-list-duplicate-entries' error.`);
}
return `Two of the entries passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' had the URL ` + `${firstEntry._entryId} but different revision details. Workbox is ` + `unable to cache and version the asset correctly. Please remove one ` + `of the entries.`;
},
'plugin-error-request-will-fetch': ({
thrownError
}) => {
if (!thrownError) {
throw new Error(`Unexpected input to ` + `'plugin-error-request-will-fetch', error.`);
}
return `An error was thrown by a plugins 'requestWillFetch()' method. ` + `The thrown error message was: '${thrownError.message}'.`;
},
'invalid-cache-name': ({
cacheNameId,
value
}) => {
if (!cacheNameId) {
throw new Error(`Expected a 'cacheNameId' for error 'invalid-cache-name'`);
}
return `You must provide a name containing at least one character for ` + `setCacheDetails({${cacheNameId}: '...'}). Received a value of ` + `'${JSON.stringify(value)}'`;
},
'unregister-route-but-not-found-with-method': ({
method
}) => {
if (!method) {
throw new Error(`Unexpected input to ` + `'unregister-route-but-not-found-with-method' error.`);
}
return `The route you're trying to unregister was not previously ` + `registered for the method type '${method}'.`;
},
'unregister-route-route-not-registered': () => {
return `The route you're trying to unregister was not previously ` + `registered.`;
},
'queue-replay-failed': ({
name
}) => {
return `Replaying the background sync queue '${name}' failed.`;
},
'duplicate-queue-name': ({
name
}) => {
return `The Queue name '${name}' is already being used. ` + `All instances of backgroundSync.Queue must be given unique names.`;
},
'expired-test-without-max-age': ({
methodName,
paramName
}) => {
return `The '${methodName}()' method can only be used when the ` + `'${paramName}' is used in the constructor.`;
},
'unsupported-route-type': ({
moduleName,
className,
funcName,
paramName
}) => {
return `The supplied '${paramName}' parameter was an unsupported type. ` + `Please check the docs for ${moduleName}.${className}.${funcName} for ` + `valid input types.`;
},
'not-array-of-class': ({
value,
expectedClass,
moduleName,
className,
funcName,
paramName
}) => {
return `The supplied '${paramName}' parameter must be an array of ` + `'${expectedClass}' objects. Received '${JSON.stringify(value)},'. ` + `Please check the call to ${moduleName}.${className}.${funcName}() ` + `to fix the issue.`;
},
'max-entries-or-age-required': ({
moduleName,
className,
funcName
}) => {
return `You must define either config.maxEntries or config.maxAgeSeconds` + `in ${moduleName}.${className}.${funcName}`;
},
'statuses-or-headers-required': ({
moduleName,
className,
funcName
}) => {
return `You must define either config.statuses or config.headers` + `in ${moduleName}.${className}.${funcName}`;
},
'invalid-string': ({
moduleName,
funcName,
paramName
}) => {
if (!paramName || !moduleName || !funcName) {
throw new Error(`Unexpected input to 'invalid-string' error.`);
}
return `When using strings, the '${paramName}' parameter must start with ` + `'http' (for cross-origin matches) or '/' (for same-origin matches). ` + `Please see the docs for ${moduleName}.${funcName}() for ` + `more info.`;
},
'channel-name-required': () => {
return `You must provide a channelName to construct a ` + `BroadcastCacheUpdate instance.`;
},
'invalid-responses-are-same-args': () => {
return `The arguments passed into responsesAreSame() appear to be ` + `invalid. Please ensure valid Responses are used.`;
},
'expire-custom-caches-only': () => {
return `You must provide a 'cacheName' property when using the ` + `expiration plugin with a runtime caching strategy.`;
},
'unit-must-be-bytes': ({
normalizedRangeHeader
}) => {
if (!normalizedRangeHeader) {
throw new Error(`Unexpected input to 'unit-must-be-bytes' error.`);
}
return `The 'unit' portion of the Range header must be set to 'bytes'. ` + `The Range header provided was "${normalizedRangeHeader}"`;
},
'single-range-only': ({
normalizedRangeHeader
}) => {
if (!normalizedRangeHeader) {
throw new Error(`Unexpected input to 'single-range-only' error.`);
}
return `Multiple ranges are not supported. Please use a single start ` + `value, and optional end value. The Range header provided was ` + `"${normalizedRangeHeader}"`;
},
'invalid-range-values': ({
normalizedRangeHeader
}) => {
if (!normalizedRangeHeader) {
throw new Error(`Unexpected input to 'invalid-range-values' error.`);
}
return `The Range header is missing both start and end values. At least ` + `one of those values is needed. The Range header provided was ` + `"${normalizedRangeHeader}"`;
},
'no-range-header': () => {
return `No Range header was found in the Request provided.`;
},
'range-not-satisfiable': ({
size,
start,
end
}) => {
return `The start (${start}) and end (${end}) values in the Range are ` + `not satisfiable by the cached response, which is ${size} bytes.`;
},
'attempt-to-cache-non-get-request': ({
url,
method
}) => {
return `Unable to cache '${url}' because it is a '${method}' request and ` + `only 'GET' requests can be cached.`;
},
'cache-put-with-no-response': ({
url
}) => {
return `There was an attempt to cache '${url}' but the response was not ` + `defined.`;
},
'no-response': ({
url,
error
}) => {
let message = `The strategy could not generate a response for '${url}'.`;
if (error) {
message += ` The underlying error is ${error}.`;
}
return message;
},
'bad-precaching-response': ({
url,
status
}) => {
return `The precaching request for '${url}' failed with an HTTP ` + `status of ${status}.`;
},
'non-precached-url': ({
url
}) => {
return `createHandlerBoundToURL('${url}') was called, but that URL is ` + `not precached. Please pass in a URL that is precached instead.`;
},
'add-to-cache-list-conflicting-integrities': ({
url
}) => {
return `Two of the entries passed to ` + `'workbox-precaching.PrecacheController.addToCacheList()' had the URL ` + `${url} with different integrity values. Please remove one of them.`;
},
'missing-precache-entry': ({
cacheName,
url
}) => {
return `Unable to find a precached response in ${cacheName} for ${url}.`;
}
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const generatorFunction = (code, details = {}) => {
const message = messages[code];
if (!message) {
throw new Error(`Unable to find message for code '${code}'.`);
}
return message(details);
};
const messageGenerator = generatorFunction;
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Workbox errors should be thrown with this class.
* This allows use to ensure the type easily in tests,
* helps developers identify errors from workbox
* easily and allows use to optimise error
* messages correctly.
*
* @private
*/
class WorkboxError extends Error {
/**
*
* @param {string} errorCode The error code that
* identifies this particular error.
* @param {Object=} details Any relevant arguments
* that will help developers identify issues should
* be added as a key on the context object.
*/
constructor(errorCode, details) {
const message = messageGenerator(errorCode, details);
super(message);
this.name = errorCode;
this.details = details;
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/*
* This method throws if the supplied value is not an array.
* The destructed values are required to produce a meaningful error for users.
* The destructed and restructured object is so it's clear what is
* needed.
*/
const isArray = (value, details) => {
if (!Array.isArray(value)) {
throw new WorkboxError('not-an-array', details);
}
};
const hasMethod = (object, expectedMethod, details) => {
const type = typeof object[expectedMethod];
if (type !== 'function') {
details['expectedMethod'] = expectedMethod;
throw new WorkboxError('missing-a-method', details);
}
};
const isType = (object, expectedType, details) => {
if (typeof object !== expectedType) {
details['expectedType'] = expectedType;
throw new WorkboxError('incorrect-type', details);
}
};
const isInstance = (object, expectedClass, details) => {
if (!(object instanceof expectedClass)) {
details['expectedClass'] = expectedClass;
throw new WorkboxError('incorrect-class', details);
}
};
const isOneOf = (value, validValues, details) => {
if (!validValues.includes(value)) {
details['validValueDescription'] = `Valid values are ${JSON.stringify(validValues)}.`;
throw new WorkboxError('invalid-value', details);
}
};
const isArrayOfClass = (value, expectedClass, details) => {
const error = new WorkboxError('not-array-of-class', details);
if (!Array.isArray(value)) {
throw error;
}
for (const item of value) {
if (!(item instanceof expectedClass)) {
throw error;
}
}
};
const finalAssertExports = {
hasMethod,
isArray,
isInstance,
isOneOf,
isType,
isArrayOfClass
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const quotaErrorCallbacks = new Set();
/*
Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Adds a function to the set of quotaErrorCallbacks that will be executed if
* there's a quota error.
*
* @param {Function} callback
* @memberof module:workbox-core
*/
function registerQuotaErrorCallback(callback) {
{
finalAssertExports.isType(callback, 'function', {
moduleName: 'workbox-core',
funcName: 'register',
paramName: 'callback'
});
}
quotaErrorCallbacks.add(callback);
{
logger.log('Registered a callback to respond to quota errors.', callback);
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const _cacheNameDetails = {
googleAnalytics: 'googleAnalytics',
precache: 'precache-v2',
prefix: 'workbox',
runtime: 'runtime',
suffix: typeof registration !== 'undefined' ? registration.scope : ''
};
const _createCacheName = cacheName => {
return [_cacheNameDetails.prefix, cacheName, _cacheNameDetails.suffix].filter(value => value && value.length > 0).join('-');
};
const eachCacheNameDetail = fn => {
for (const key of Object.keys(_cacheNameDetails)) {
fn(key);
}
};
const cacheNames = {
updateDetails: details => {
eachCacheNameDetail(key => {
if (typeof details[key] === 'string') {
_cacheNameDetails[key] = details[key];
}
});
},
getGoogleAnalyticsName: userCacheName => {
return userCacheName || _createCacheName(_cacheNameDetails.googleAnalytics);
},
getPrecacheName: userCacheName => {
return userCacheName || _createCacheName(_cacheNameDetails.precache);
},
getPrefix: () => {
return _cacheNameDetails.prefix;
},
getRuntimeName: userCacheName => {
return userCacheName || _createCacheName(_cacheNameDetails.runtime);
},
getSuffix: () => {
return _cacheNameDetails.suffix;
}
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Runs all of the callback functions, one at a time sequentially, in the order
* in which they were registered.
*
* @memberof module:workbox-core
* @private
*/
async function executeQuotaErrorCallbacks() {
{
logger.log(`About to run ${quotaErrorCallbacks.size} ` + `callbacks to clean up caches.`);
}
for (const callback of quotaErrorCallbacks) {
await callback();
{
logger.log(callback, 'is complete.');
}
}
{
logger.log('Finished running callbacks.');
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const getFriendlyURL = url => {
const urlObj = new URL(String(url), location.href); // See https://github.com/GoogleChrome/workbox/issues/2323
// We want to include everything, except for the origin if it's same-origin.
return urlObj.href.replace(new RegExp(`^${location.origin}`), '');
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
const pluginUtils = {
filter: (plugins, callbackName) => {
return plugins.filter(plugin => callbackName in plugin);
}
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Checks the list of plugins for the cacheKeyWillBeUsed callback, and
* executes any of those callbacks found in sequence. The final `Request` object
* returned by the last plugin is treated as the cache key for cache reads
* and/or writes.
*
* @param {Object} options
* @param {Request} options.request
* @param {string} options.mode
* @param {Array<Object>} [options.plugins=[]]
* @return {Promise<Request>}
*
* @private
* @memberof module:workbox-core
*/
const _getEffectiveRequest = async ({
request,
mode,
plugins = []
}) => {
const cacheKeyWillBeUsedPlugins = pluginUtils.filter(plugins, "cacheKeyWillBeUsed"
/* CACHE_KEY_WILL_BE_USED */
);
let effectiveRequest = request;
for (const plugin of cacheKeyWillBeUsedPlugins) {
effectiveRequest = await plugin["cacheKeyWillBeUsed"
/* CACHE_KEY_WILL_BE_USED */
].call(plugin, {
mode,
request: effectiveRequest
});
if (typeof effectiveRequest === 'string') {
effectiveRequest = new Request(effectiveRequest);
}
{
finalAssertExports.isInstance(effectiveRequest, Request, {
moduleName: 'Plugin',
funcName: "cacheKeyWillBeUsed"
/* CACHE_KEY_WILL_BE_USED */
,
isReturnValueProblem: true
});
}
}
return effectiveRequest;
};
/**
* This method will call cacheWillUpdate on the available plugins (or use
* status === 200) to determine if the Response is safe and valid to cache.
*
* @param {Object} options
* @param {Request} options.request
* @param {Response} options.response
* @param {Event} [options.event]
* @param {Array<Object>} [options.plugins=[]]
* @return {Promise<Response>}
*
* @private
* @memberof module:workbox-core
*/
const _isResponseSafeToCache = async ({
request,
response,
event,
plugins = []
}) => {
let responseToCache = response;
let pluginsUsed = false;
for (const plugin of plugins) {
if ("cacheWillUpdate"
/* CACHE_WILL_UPDATE */
in plugin) {
pluginsUsed = true;
const pluginMethod = plugin["cacheWillUpdate"
/* CACHE_WILL_UPDATE */
];
responseToCache = await pluginMethod.call(plugin, {
request,
response: responseToCache,
event
});
{
if (responseToCache) {
finalAssertExports.isInstance(responseToCache, Response, {
moduleName: 'Plugin',
funcName: "cacheWillUpdate"
/* CACHE_WILL_UPDATE */
,
isReturnValueProblem: true
});
}
}
if (!responseToCache) {
break;
}
}
}
if (!pluginsUsed) {
{
if (responseToCache) {
if (responseToCache.status !== 200) {
if (responseToCache.status === 0) {
logger.warn(`The response for '${request.url}' is an opaque ` + `response. The caching strategy that you're using will not ` + `cache opaque responses by default.`);
} else {
logger.debug(`The response for '${request.url}' returned ` + `a status code of '${response.status}' and won't be cached as a ` + `result.`);
}
}
}
}
responseToCache = responseToCache && responseToCache.status === 200 ? responseToCache : undefined;
}
return responseToCache ? responseToCache : null;
};
/**
* This is a wrapper around cache.match().
*
* @param {Object} options
* @param {string} options.cacheName Name of the cache to match against.
* @param {Request} options.request The Request that will be used to look up
* cache entries.
* @param {Event} [options.event] The event that prompted the action.
* @param {Object} [options.matchOptions] Options passed to cache.match().
* @param {Array<Object>} [options.plugins=[]] Array of plugins.
* @return {Response} A cached response if available.
*
* @private
* @memberof module:workbox-core
*/
const matchWrapper = async ({
cacheName,
request,
event,
matchOptions,
plugins = []
}) => {
const cache = await self.caches.open(cacheName);
const effectiveRequest = await _getEffectiveRequest({
plugins,
request,
mode: 'read'
});
let cachedResponse = await cache.match(effectiveRequest, matchOptions);
{
if (cachedResponse) {
logger.debug(`Found a cached response in '${cacheName}'.`);
} else {
logger.debug(`No cached response found in '${cacheName}'.`);
}
}
for (const plugin of plugins) {
if ("cachedResponseWillBeUsed"
/* CACHED_RESPONSE_WILL_BE_USED */
in plugin) {
const pluginMethod = plugin["cachedResponseWillBeUsed"
/* CACHED_RESPONSE_WILL_BE_USED */
];
cachedResponse = await pluginMethod.call(plugin, {
cacheName,
event,
matchOptions,
cachedResponse,
request: effectiveRequest
});
{
if (cachedResponse) {
finalAssertExports.isInstance(cachedResponse, Response, {
moduleName: 'Plugin',
funcName: "cachedResponseWillBeUsed"
/* CACHED_RESPONSE_WILL_BE_USED */
,
isReturnValueProblem: true
});
}
}
}
}
return cachedResponse;
};
/**
* Wrapper around cache.put().
*
* Will call `cacheDidUpdate` on plugins if the cache was updated, using
* `matchOptions` when determining what the old entry is.
*
* @param {Object} options
* @param {string} options.cacheName
* @param {Request} options.request
* @param {Response} options.response
* @param {Event} [options.event]
* @param {Array<Object>} [options.plugins=[]]
* @param {Object} [options.matchOptions]
*
* @private
* @memberof module:workbox-core
*/
const putWrapper = async ({
cacheName,
request,
response,
event,
plugins = [],
matchOptions
}) => {
{
if (request.method && request.method !== 'GET') {
throw new WorkboxError('attempt-to-cache-non-get-request', {
url: getFriendlyURL(request.url),
method: request.method
});
}
}
const effectiveRequest = await _getEffectiveRequest({
plugins,
request,
mode: 'write'
});
if (!response) {
{
logger.error(`Cannot cache non-existent response for ` + `'${getFriendlyURL(effectiveRequest.url)}'.`);
}
throw new WorkboxError('cache-put-with-no-response', {
url: getFriendlyURL(effectiveRequest.url)
});
}
const responseToCache = await _isResponseSafeToCache({
event,
plugins,
response,
request: effectiveRequest
});
if (!responseToCache) {
{
logger.debug(`Response '${getFriendlyURL(effectiveRequest.url)}' will ` + `not be cached.`, responseToCache);
}
return;
}
const cache = await self.caches.open(cacheName);
const updatePlugins = pluginUtils.filter(plugins, "cacheDidUpdate"
/* CACHE_DID_UPDATE */
);
const oldResponse = updatePlugins.length > 0 ? await matchWrapper({
cacheName,
matchOptions,
request: effectiveRequest
}) : null;
{
logger.debug(`Updating the '${cacheName}' cache with a new Response for ` + `${getFriendlyURL(effectiveRequest.url)}.`);
}
try {
await cache.put(effectiveRequest, responseToCache);
} catch (error) {
// See https://developer.mozilla.org/en-US/docs/Web/API/DOMException#exception-QuotaExceededError
if (error.name === 'QuotaExceededError') {
await executeQuotaErrorCallbacks();
}
throw error;
}
for (const plugin of updatePlugins) {
await plugin["cacheDidUpdate"
/* CACHE_DID_UPDATE */
].call(plugin, {
cacheName,
event,
oldResponse,
newResponse: responseToCache,
request: effectiveRequest
});
}
};
const cacheWrapper = {
put: putWrapper,
match: matchWrapper
};
/*
Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
let supportStatus;
/**
* A utility function that determines whether the current browser supports
* constructing a [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/ReadableStream)
* object.
*
* @return {boolean} `true`, if the current browser can successfully
* construct a `ReadableStream`, `false` otherwise.
*
* @private
*/
function canConstructReadableStream() {
if (supportStatus === undefined) {
// See https://github.com/GoogleChrome/workbox/issues/1473
try {
new ReadableStream({
start() {}
});
supportStatus = true;
} catch (error) {
supportStatus = false;
}
}
return supportStatus;
}
/*
Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
let supportStatus$1;
/**
* A utility function that determines whether the current browser supports
* constructing a new `Response` from a `response.body` stream.
*
* @return {boolean} `true`, if the current browser can successfully
* construct a `Response` from a `response.body` stream, `false` otherwise.
*
* @private
*/
function canConstructResponseFromBodyStream() {
if (supportStatus$1 === undefined) {
const testResponse = new Response('');
if ('body' in testResponse) {
try {
new Response(testResponse.body);
supportStatus$1 = true;
} catch (error) {
supportStatus$1 = false;
}
}
supportStatus$1 = false;
}
return supportStatus$1;
}
/*
Copyright 2019 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* A helper function that prevents a promise from being flagged as unused.
*
* @private
**/
function dontWaitFor(promise) {
// Effective no-op.
promise.then(() => {});
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* A class that wraps common IndexedDB functionality in a promise-based API.
* It exposes all the underlying power and functionality of IndexedDB, but
* wraps the most commonly used features in a way that's much simpler to use.
*
* @private
*/
class DBWrapper {
/**
* @param {string} name
* @param {number} version
* @param {Object=} [callback]
* @param {!Function} [callbacks.onupgradeneeded]
* @param {!Function} [callbacks.onversionchange] Defaults to
* DBWrapper.prototype._onversionchange when not specified.
* @private
*/
constructor(name, version, {
onupgradeneeded,
onversionchange
} = {}) {
this._db = null;
this._name = name;
this._version = version;
this._onupgradeneeded = onupgradeneeded;
this._onversionchange = onversionchange || (() => this.close());
}
/**
* Returns the IDBDatabase instance (not normally needed).
* @return {IDBDatabase|undefined}
*
* @private
*/
get db() {
return this._db;
}
/**
* Opens a connected to an IDBDatabase, invokes any onupgradedneeded
* callback, and added an onversionchange callback to the database.
*
* @return {IDBDatabase}
* @private
*/
async open() {
if (this._db) return;
this._db = await new Promise((resolve, reject) => {
// This flag is flipped to true if the timeout callback runs prior
// to the request failing or succeeding. Note: we use a timeout instead
// of an onblocked handler since there are cases where onblocked will
// never never run. A timeout better handles all possible scenarios:
// https://github.com/w3c/IndexedDB/issues/223
let openRequestTimedOut = false;
setTimeout(() => {
openRequestTimedOut = true;
reject(new Error('The open request was blocked and timed out'));
}, this.OPEN_TIMEOUT);
const openRequest = indexedDB.open(this._name, this._version);
openRequest.onerror = () => reject(openRequest.error);
openRequest.onupgradeneeded = evt => {
if (openRequestTimedOut) {
openRequest.transaction.abort();
openRequest.result.close();
} else if (typeof this._onupgradeneeded === 'function') {
this._onupgradeneeded(evt);
}
};
openRequest.onsuccess = () => {
const db = openRequest.result;
if (openRequestTimedOut) {
db.close();
} else {
db.onversionchange = this._onversionchange.bind(this);
resolve(db);
}
};
});
return this;
}
/**
* Polyfills the native `getKey()` method. Note, this is overridden at
* runtime if the browser supports the native method.
*
* @param {string} storeName
* @param {*} query
* @return {Array}
* @private
*/
async getKey(storeName, query) {
return (await this.getAllKeys(storeName, query, 1))[0];
}
/**
* Polyfills the native `getAll()` method. Note, this is overridden at
* runtime if the browser supports the native method.
*
* @param {string} storeName
* @param {*} query
* @param {number} count
* @return {Array}
* @private
*/
async getAll(storeName, query, count) {
return await this.getAllMatching(storeName, {
query,
count
});
}
/**
* Polyfills the native `getAllKeys()` method. Note, this is overridden at
* runtime if the browser supports the native method.
*
* @param {string} storeName
* @param {*} query
* @param {number} count
* @return {Array}
* @private
*/
async getAllKeys(storeName, query, count) {
const entries = await this.getAllMatching(storeName, {
query,
count,
includeKeys: true
});
return entries.map(entry => entry.key);
}
/**
* Supports flexible lookup in an object store by specifying an index,
* query, direction, and count. This method returns an array of objects
* with the signature .
*
* @param {string} storeName
* @param {Object} [opts]
* @param {string} [opts.index] The index to use (if specified).
* @param {*} [opts.query]
* @param {IDBCursorDirection} [opts.direction]
* @param {number} [opts.count] The max number of results to return.
* @param {boolean} [opts.includeKeys] When true, the structure of the
* returned objects is changed from an array of values to an array of
* objects in the form {key, primaryKey, value}.
* @return {Array}
* @private
*/
async getAllMatching(storeName, {
index,
query = null,
// IE/Edge errors if query === `undefined`.
direction = 'next',
count,
includeKeys = false
} = {}) {
return await this.transaction([storeName], 'readonly', (txn, done) => {
const store = txn.objectStore(storeName);
const target = index ? store.index(index) : store;
const results = [];
const request = target.openCursor(query, direction);
request.onsuccess = () => {
const cursor = request.result;
if (cursor) {
results.push(includeKeys ? cursor : cursor.value);
if (count && results.length >= count) {
done(results);
} else {
cursor.continue();
}
} else {
done(results);
}
};
});
}
/**
* Accepts a list of stores, a transaction type, and a callback and
* performs a transaction. A promise is returned that resolves to whatever
* value the callback chooses. The callback holds all the transaction logic
* and is invoked with two arguments:
* 1. The IDBTransaction object
* 2. A `done` function, that's used to resolve the promise when
* when the transaction is done, if passed a value, the promise is
* resolved to that value.
*
* @param {Array<string>} storeNames An array of object store names
* involved in the transaction.
* @param {string} type Can be `readonly` or `readwrite`.
* @param {!Function} callback
* @return {*} The result of the transaction ran by the callback.
* @private
*/
async transaction(storeNames, type, callback) {
await this.open();
return await new Promise((resolve, reject) => {
const txn = this._db.transaction(storeNames, type);
txn.onabort = () => reject(txn.error);
txn.oncomplete = () => resolve();
callback(txn, value => resolve(value));
});
}
/**
* Delegates async to a native IDBObjectStore method.
*
* @param {string} method The method name.
* @param {string} storeName The object store name.
* @param {string} type Can be `readonly` or `readwrite`.
* @param {...*} args The list of args to pass to the native method.
* @return {*} The result of the transaction.
* @private
*/
async _call(method, storeName, type, ...args) {
const callback = (txn, done) => {
const objStore = txn.objectStore(storeName); // TODO(philipwalton): Fix this underlying TS2684 error.
// @ts-ignore
const request = objStore[method].apply(objStore, args);
request.onsuccess = () => done(request.result);
};
return await this.transaction([storeName], type, callback);
}
/**
* Closes the connection opened by `DBWrapper.open()`. Generally this method
* doesn't need to be called since:
* 1. It's usually better to keep a connection open since opening
* a new connection is somewhat slow.
* 2. Connections are automatically closed when the reference is
* garbage collected.
* The primary use case for needing to close a connection is when another
* reference (typically in another tab) needs to upgrade it and would be
* blocked by the current, open connection.
*
* @private
*/
close() {
if (this._db) {
this._db.close();
this._db = null;
}
}
} // Exposed on the prototype to let users modify the default timeout on a
// per-instance or global basis.
DBWrapper.prototype.OPEN_TIMEOUT = 2000; // Wrap native IDBObjectStore methods according to their mode.
const methodsToWrap = {
readonly: ['get', 'count', 'getKey', 'getAll', 'getAllKeys'],
readwrite: ['add', 'put', 'clear', 'delete']
};
for (const [mode, methods] of Object.entries(methodsToWrap)) {
for (const method of methods) {
if (method in IDBObjectStore.prototype) {
// Don't use arrow functions here since we're outside of the class.
DBWrapper.prototype[method] = async function (storeName, ...args) {
return await this._call(method, storeName, mode, ...args);
};
}
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* The Deferred class composes Promises in a way that allows for them to be
* resolved or rejected from outside the constructor. In most cases promises
* should be used directly, but Deferreds can be necessary when the logic to
* resolve a promise must be separate.
*
* @private
*/
class Deferred {
/**
* Creates a promise and exposes its resolve and reject functions as methods.
*/
constructor() {
this.promise = new Promise((resolve, reject) => {
this.resolve = resolve;
this.reject = reject;
});
}
}
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Deletes the database.
* Note: this is exported separately from the DBWrapper module because most
* usages of IndexedDB in workbox dont need deleting, and this way it can be
* reused in tests to delete databases without creating DBWrapper instances.
*
* @param {string} name The database name.
* @private
*/
const deleteDatabase = async name => {
await new Promise((resolve, reject) => {
const request = indexedDB.deleteDatabase(name);
request.onerror = () => {
reject(request.error);
};
request.onblocked = () => {
reject(new Error('Delete blocked'));
};
request.onsuccess = () => {
resolve();
};
});
};
/*
Copyright 2018 Google LLC
Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/
/**
* Wrapper around the fetch API.
*
* Will call requestWillFetch on available plugins.
*
* @param {Object} options
* @param {Request|string} options.request
* @param {Object} [options.fetchOptions]
* @param {ExtendableEvent} [options.event]
* @param {Array<Object>} [options.plugins=[]]
* @return {Promise<Response>}
*
* @private
* @memberof module:workbox-core
*/
const wrappedFetch = async ({
request,
fetchOptions,
event,
plugins = []
}) => {
if (typeof request === 'string') {
request = new Request(request);
} // We *should* be able to call `await event.preloadResponse` even if it's
// undefined, but for some reason, doing so leads to errors in our Node unit
// tests. To work around that, explicitly check preloadResponse's value first.
if (event instanceof FetchEvent && event.preloadResponse) {
const possiblePreloadResponse = await event.preloadResponse;
if (possiblePreloadResponse) {
{
logger.log(`Using a preloaded navigation response for ` + `'${getFriendlyURL(request.url)}'`);
}
return possiblePreloadResponse;
}
}
{
finalAssertExports.isInstance(request, Request, {
paramName: 'request',
expectedClass: Request,
moduleName: 'workbox-core',
className: 'fetchWrapper',
funcName: 'wrappedFetch'
});
}
const failedFetchPlugins = pluginUtils.filter(plugins, "fetchDidFail"
/* FETCH_DID_FAIL */
); // If there is a fetchDidFail plugin, we need to save a clone of the
// original request before it's either modified by a requestWillFetch
// plugin or before the original request's body is consumed via fetch().
const originalRequest = failedFetchPlugins.length > 0 ? request.clone() : null;
try {
for (const plugin of plugins) {
if ("requestWillFetch"
/* REQUEST_WILL_FETCH */
in plugin) {
const pluginMethod = plugin["requestWillFetch"
/* REQUEST_WILL_FETCH */
];
const requestClone = request.clone();
request = await pluginMethod.call(plugin, {
request: requestClone,
event
});
if ("dev" !== 'production') {
if (request) {
finalAssertExports.isInstance(request, Request, {
moduleName: 'Plugin',
funcName: "cachedResponseWillBeUsed"
/* CACHED_RESPONSE_WILL_BE_USED */
,
isReturnValueProblem: true
});
}
}
}
}
} catch (err) {
throw new WorkboxError('plugin-error-request-will-fetch', {
thrownError: err
});
} // The request can be altered by plugins with `requestWillFetch` making
// the original request (Most likely from a `fetch` event) to be different
// to the Request we make. Pass both to `fetchDidFail` to aid debugging.
const pluginFilteredRequest = request.clone();
try {
let fetchResponse; // See https://github.com/GoogleChrome/workbox/issues/1796
if (request.mode === 'navigate') {
fetchResponse = await fetch(request);
} else {
fetchResponse = await fetch(request, fetchOptions);
}
if ("dev" !== 'production') {
logger.debug(`Network request for ` + `'${getFriendlyURL(request.url)}' returned a response with ` + `status '${fetchResponse.status}'.`);
}
for (const plugin of plugins) {
if ("fetchDidSucceed"
/* FETCH_DID_SUCCEED */
in plugin) {
fetchResponse = await plugin["fetchDidSucceed"
/* FETCH_DID_SUCCEED */
].call(plugin, {
event,
request: pluginFilteredRequest,
response: fetchResponse
});
if ("dev" !== 'production') {
if (fetchResponse) {
finalAssertExports.isInstance(fetchResponse, Response, {
moduleName: 'Plugin',
funcName: "fetchDidSucceed"
/* FETCH_DID_SUCCEED */
,
isReturnValueProblem: true
});
}
}
}
}
return fetchResponse;