@azure/static-web-apps-cli/dist/msha/routes-engine/rules/mime-types.js

Azure Static Web Apps CLI

import chalk from "chalk";
import path from "node:path";
import { logger } from "../../../core/utils/logger.js";
import { DEFAULT_MIME_TYPE, MIME_TYPE_LIST } from "../../../core/constants.js";
// See: https://docs.microsoft.com/azure/static-web-apps/configuration
export async function mimeTypes(req, res, mimeTypes) {
    if (req.url?.includes(".")) {
        logger.silly(`checking mimeTypes rule`);
        const fileExtentionFromURL = req.url?.split(".").pop();
        const overrideMimeType = mimeTypes?.[`.${fileExtentionFromURL}`];
        if (fileExtentionFromURL && overrideMimeType) {
            res.setHeader("Content-Type", overrideMimeType);
        }
    }
}
export function getMimeTypeForExtension(filePathFromRequest, customMimeType) {
    if (filePathFromRequest instanceof URL) {
        filePathFromRequest = filePathFromRequest.toString();
    }
    const extension = path.extname(filePathFromRequest);
    logger.silly(`checking mime types`);
    logger.silly(` - filePathFromRequest: ${chalk.yellow(filePathFromRequest)}`);
    logger.silly(` - extension: ${chalk.yellow(extension || "<empty>")}`);
    let mimeType = MIME_TYPE_LIST[extension] || DEFAULT_MIME_TYPE;
    if (customMimeType?.[extension]) {
        mimeType = customMimeType[extension];
    }
    logger.silly(` - found: ${chalk.yellow(mimeType || "<undefined>")}`);
    return mimeType;
}
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