74 lines
2.4 KiB
JavaScript
74 lines
2.4 KiB
JavaScript
import { isRemoteAllowed } from "@astrojs/internal-helpers/remote";
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import { AstroError, AstroErrorData } from "../../core/errors/index.js";
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import { imageMetadata } from "./metadata.js";
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async function inferRemoteSize(url, imageConfig) {
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if (!URL.canParse(url)) {
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throw new AstroError({
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...AstroErrorData.FailedToFetchRemoteImageDimensions,
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message: AstroErrorData.FailedToFetchRemoteImageDimensions.message(url)
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});
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}
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const allowlistConfig = imageConfig ? {
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domains: imageConfig.domains ?? [],
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remotePatterns: imageConfig.remotePatterns ?? []
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} : void 0;
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if (!allowlistConfig) {
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const parsedUrl = new URL(url);
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if (!["http:", "https:"].includes(parsedUrl.protocol)) {
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throw new AstroError({
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...AstroErrorData.FailedToFetchRemoteImageDimensions,
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message: AstroErrorData.FailedToFetchRemoteImageDimensions.message(url)
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});
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}
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}
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if (allowlistConfig && !isRemoteAllowed(url, allowlistConfig)) {
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throw new AstroError({
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...AstroErrorData.RemoteImageNotAllowed,
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message: AstroErrorData.RemoteImageNotAllowed.message(url)
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});
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}
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const response = await fetch(url, { redirect: "manual" });
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if (response.status >= 300 && response.status < 400) {
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throw new AstroError({
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...AstroErrorData.FailedToFetchRemoteImageDimensions,
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message: AstroErrorData.FailedToFetchRemoteImageDimensions.message(url)
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});
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}
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if (!response.body || !response.ok) {
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throw new AstroError({
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...AstroErrorData.FailedToFetchRemoteImageDimensions,
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message: AstroErrorData.FailedToFetchRemoteImageDimensions.message(url)
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});
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}
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const reader = response.body.getReader();
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let done, value;
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let accumulatedChunks = new Uint8Array();
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while (!done) {
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const readResult = await reader.read();
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done = readResult.done;
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if (done) break;
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if (readResult.value) {
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value = readResult.value;
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let tmp = new Uint8Array(accumulatedChunks.length + value.length);
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tmp.set(accumulatedChunks, 0);
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tmp.set(value, accumulatedChunks.length);
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accumulatedChunks = tmp;
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try {
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const dimensions = await imageMetadata(accumulatedChunks, url);
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if (dimensions) {
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await reader.cancel();
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return dimensions;
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}
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} catch {
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}
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}
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}
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throw new AstroError({
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...AstroErrorData.NoImageMetadata,
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message: AstroErrorData.NoImageMetadata.message(url)
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});
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}
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export {
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inferRemoteSize
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};
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