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Diffstat (limited to 'public/workbox-v4.3.1/workbox-range-requests.dev.js')
| -rw-r--r-- | public/workbox-v4.3.1/workbox-range-requests.dev.js | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/public/workbox-v4.3.1/workbox-range-requests.dev.js b/public/workbox-v4.3.1/workbox-range-requests.dev.js deleted file mode 100644 index 2c0609d..0000000 --- a/public/workbox-v4.3.1/workbox-range-requests.dev.js +++ /dev/null @@ -1,268 +0,0 @@ -this.workbox = this.workbox || {}; -this.workbox.rangeRequests = (function (exports, WorkboxError_mjs, assert_mjs, logger_mjs) { - 'use strict'; - - try { - self['workbox:range-requests:4.3.1'] && _(); - } catch (e) {} // eslint-disable-line - - /* - 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. - */ - /** - * @param {Blob} blob A source blob. - * @param {number|null} start The offset to use as the start of the - * slice. - * @param {number|null} end The offset to use as the end of the slice. - * @return {Object} An object with `start` and `end` properties, reflecting - * the effective boundaries to use given the size of the blob. - * - * @private - */ - - function calculateEffectiveBoundaries(blob, start, end) { - { - assert_mjs.assert.isInstance(blob, Blob, { - moduleName: 'workbox-range-requests', - funcName: 'calculateEffectiveBoundaries', - paramName: 'blob' - }); - } - - const blobSize = blob.size; - - if (end > blobSize || start < 0) { - throw new WorkboxError_mjs.WorkboxError('range-not-satisfiable', { - size: blobSize, - end, - start - }); - } - - let effectiveStart; - let effectiveEnd; - - if (start === null) { - effectiveStart = blobSize - end; - effectiveEnd = blobSize; - } else if (end === null) { - effectiveStart = start; - effectiveEnd = blobSize; - } else { - effectiveStart = start; // Range values are inclusive, so add 1 to the value. - - effectiveEnd = end + 1; - } - - return { - start: effectiveStart, - end: effectiveEnd - }; - } - - /* - 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. - */ - /** - * @param {string} rangeHeader A Range: header value. - * @return {Object} An object with `start` and `end` properties, reflecting - * the parsed value of the Range: header. If either the `start` or `end` are - * omitted, then `null` will be returned. - * - * @private - */ - - function parseRangeHeader(rangeHeader) { - { - assert_mjs.assert.isType(rangeHeader, 'string', { - moduleName: 'workbox-range-requests', - funcName: 'parseRangeHeader', - paramName: 'rangeHeader' - }); - } - - const normalizedRangeHeader = rangeHeader.trim().toLowerCase(); - - if (!normalizedRangeHeader.startsWith('bytes=')) { - throw new WorkboxError_mjs.WorkboxError('unit-must-be-bytes', { - normalizedRangeHeader - }); - } // Specifying multiple ranges separate by commas is valid syntax, but this - // library only attempts to handle a single, contiguous sequence of bytes. - // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax - - - if (normalizedRangeHeader.includes(',')) { - throw new WorkboxError_mjs.WorkboxError('single-range-only', { - normalizedRangeHeader - }); - } - - const rangeParts = /(\d*)-(\d*)/.exec(normalizedRangeHeader); // We need either at least one of the start or end values. - - if (rangeParts === null || !(rangeParts[1] || rangeParts[2])) { - throw new WorkboxError_mjs.WorkboxError('invalid-range-values', { - normalizedRangeHeader - }); - } - - return { - start: rangeParts[1] === '' ? null : Number(rangeParts[1]), - end: rangeParts[2] === '' ? null : Number(rangeParts[2]) - }; - } - - /* - 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. - */ - /** - * Given a `Request` and `Response` objects as input, this will return a - * promise for a new `Response`. - * - * If the original `Response` already contains partial content (i.e. it has - * a status of 206), then this assumes it already fulfills the `Range:` - * requirements, and will return it as-is. - * - * @param {Request} request A request, which should contain a Range: - * header. - * @param {Response} originalResponse A response. - * @return {Promise<Response>} Either a `206 Partial Content` response, with - * the response body set to the slice of content specified by the request's - * `Range:` header, or a `416 Range Not Satisfiable` response if the - * conditions of the `Range:` header can't be met. - * - * @memberof workbox.rangeRequests - */ - - async function createPartialResponse(request, originalResponse) { - try { - { - assert_mjs.assert.isInstance(request, Request, { - moduleName: 'workbox-range-requests', - funcName: 'createPartialResponse', - paramName: 'request' - }); - assert_mjs.assert.isInstance(originalResponse, Response, { - moduleName: 'workbox-range-requests', - funcName: 'createPartialResponse', - paramName: 'originalResponse' - }); - } - - if (originalResponse.status === 206) { - // If we already have a 206, then just pass it through as-is; - // see https://github.com/GoogleChrome/workbox/issues/1720 - return originalResponse; - } - - const rangeHeader = request.headers.get('range'); - - if (!rangeHeader) { - throw new WorkboxError_mjs.WorkboxError('no-range-header'); - } - - const boundaries = parseRangeHeader(rangeHeader); - const originalBlob = await originalResponse.blob(); - const effectiveBoundaries = calculateEffectiveBoundaries(originalBlob, boundaries.start, boundaries.end); - const slicedBlob = originalBlob.slice(effectiveBoundaries.start, effectiveBoundaries.end); - const slicedBlobSize = slicedBlob.size; - const slicedResponse = new Response(slicedBlob, { - // Status code 206 is for a Partial Content response. - // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206 - status: 206, - statusText: 'Partial Content', - headers: originalResponse.headers - }); - slicedResponse.headers.set('Content-Length', slicedBlobSize); - slicedResponse.headers.set('Content-Range', `bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` + originalBlob.size); - return slicedResponse; - } catch (error) { - { - logger_mjs.logger.warn(`Unable to construct a partial response; returning a ` + `416 Range Not Satisfiable response instead.`); - logger_mjs.logger.groupCollapsed(`View details here.`); - logger_mjs.logger.log(error); - logger_mjs.logger.log(request); - logger_mjs.logger.log(originalResponse); - logger_mjs.logger.groupEnd(); - } - - return new Response('', { - status: 416, - statusText: 'Range Not Satisfiable' - }); - } - } - - /* - 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 range request plugin makes it easy for a request with a 'Range' header to - * be fulfilled by a cached response. - * - * It does this by intercepting the `cachedResponseWillBeUsed` plugin callback - * and returning the appropriate subset of the cached response body. - * - * @memberof workbox.rangeRequests - */ - - class Plugin { - /** - * @param {Object} options - * @param {Request} options.request The original request, which may or may not - * contain a Range: header. - * @param {Response} options.cachedResponse The complete cached response. - * @return {Promise<Response>} If request contains a 'Range' header, then a - * new response with status 206 whose body is a subset of `cachedResponse` is - * returned. Otherwise, `cachedResponse` is returned as-is. - * - * @private - */ - async cachedResponseWillBeUsed({ - request, - cachedResponse - }) { - // Only return a sliced response if there's something valid in the cache, - // and there's a Range: header in the request. - if (cachedResponse && request.headers.has('range')) { - return await createPartialResponse(request, cachedResponse); - } // If there was no Range: header, or if cachedResponse wasn't valid, just - // pass it through as-is. - - - return cachedResponse; - } - - } - - /* - 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. - */ - - exports.createPartialResponse = createPartialResponse; - exports.Plugin = Plugin; - - return exports; - -}({}, workbox.core._private, workbox.core._private, workbox.core._private)); -//# sourceMappingURL=workbox-range-requests.dev.js.map |