1 files changed, 69 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/schemes/DataUriPlugin.js b/node_modules/webpack/lib/schemes/DataUriPlugin.js
new file mode 100644
index 00000000..659fee93
--- /dev/null
+++ b/node_modules/webpack/lib/schemes/DataUriPlugin.js
@@ -0,0 +1,69 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const NormalModule = require("../NormalModule");
+
+/** @typedef {import("../Compiler")} Compiler */
+
+// data URL scheme: "data:text/javascript;charset=utf-8;base64,some-string"
+// http://www.ietf.org/rfc/rfc2397.txt
+const URIRegEx = /^data:([^;,]+)?((?:;[^;,]+)*?)(?:;(base64))?,(.*)$/i;
+
+/**
+ * @param {string} uri data URI
+ * @returns {Buffer|null} decoded data
+ */
+const decodeDataURI = uri => {
+	const match = URIRegEx.exec(uri);
+	if (!match) return null;
+
+	const isBase64 = match[3];
+	const body = match[4];
+
+	if (isBase64) {
+		return Buffer.from(body, "base64");
+	}
+
+	// CSS allows to use `data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg"><rect width="100%" height="100%" style="stroke: rgb(223,224,225); stroke-width: 2px; fill: none; stroke-dasharray: 6px 3px" /></svg>`
+	// so we return original body if we can't `decodeURIComponent`
+	try {
+		return Buffer.from(decodeURIComponent(body), "ascii");
+	} catch (_) {
+		return Buffer.from(body, "ascii");
+	}
+};
+
+class DataUriPlugin {
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.compilation.tap(
+			"DataUriPlugin",
+			(compilation, { normalModuleFactory }) => {
+				normalModuleFactory.hooks.resolveForScheme
+					.for("data")
+					.tap("DataUriPlugin", resourceData => {
+						const match = URIRegEx.exec(resourceData.resource);
+						if (match) {
+							resourceData.data.mimetype = match[1] || "";
+							resourceData.data.parameters = match[2] || "";
+							resourceData.data.encoding = match[3] || false;
+							resourceData.data.encodedContent = match[4] || "";
+						}
+					});
+				NormalModule.getCompilationHooks(compilation)
+					.readResourceForScheme.for("data")
+					.tap("DataUriPlugin", resource => decodeDataURI(resource));
+			}
+		);
+	}
+}
+
+module.exports = DataUriPlugin;