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.npmrc

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+ignore-scripts=true
+lockfile-version=3
+save-exact=true

ades.go

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+// Copyright (C) 2024  Eric Cornelissen
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+//go:build wasm
+
+package main
+
+import (
+	"syscall/js"
+
+	"github.com/ericcornelissen/ades"
+)
+
+var window = js.Global().Get("window")
+
+func fail(description string, err error) {
+	window.Call("showError", description, err.Error())
+}
+
+func succeed(result []any) {
+	window.Call("showResult", js.ValueOf(result))
+}
+
+func encodeErrorAsMap(violation *ades.Violation) map[string]any {
+	obj := make(map[string]any, 4)
+	obj["job"] = violation.JobId
+	obj["step"] = violation.StepId
+	obj["problem"] = violation.Problem
+	obj["ruleId"] = violation.RuleId
+	return obj
+}
+
+func lintWorkflow(source string) ([]ades.Violation, error) {
+	workflow, err := ades.ParseWorkflow([]byte(source))
+	if err != nil {
+		return nil, err
+	}
+
+	return ades.AnalyzeWorkflow(&workflow, ades.AllMatcher), nil
+}
+
+func lintManifest(source string) ([]ades.Violation, error) {
+	manifest, err := ades.ParseManifest([]byte(source))
+	if err != nil {
+		return nil, err
+	}
+
+	return ades.AnalyzeManifest(&manifest, ades.AllMatcher), nil
+}
+
+func analyze(source string) {
+	violations, err := lintWorkflow(source)
+	if err != nil || len(violations) == 0 {
+		violations, err = lintManifest(source)
+	}
+
+	if err != nil {
+		fail("Parsing failure", err)
+		return
+	}
+
+	result := make([]any, 0, len(violations))
+	for _, violation := range violations {
+		result = append(result, encodeErrorAsMap(&violation))
+	}
+
+	succeed(result)
+	return
+}
+
+func runAdes(_this js.Value, args []js.Value) any {
+	source := args[0].String()
+	analyze(source)
+
+	return nil
+}
+
+func main() {
+	window.Set("ades", js.FuncOf(runAdes))
+
+	initialSource := window.Call("getSource").String()
+	analyze(initialSource)
+
+	// Keep the program alive
+	select {}
+}

index.css

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+/**
+ * Copyright (C) 2024  Eric Cornelissen
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+html {
+  min-height: 100%;
+}
+
+body {
+  box-sizing: border-box;
+  font-size: 14px;
+  font-family: sans-serif;
+  height: 100vh;
+  margin: 0;
+  max-width: 980px;
+  padding: 2rem 2rem 0 ;
+  position: relative;
+}
+p {
+  margin: .25rem 0;
+  padding: 0;
+}
+
+textarea.code {
+  font-family: monospace;
+}
+
+.working {
+  font-style: italic;
+}
+
+.result ul {
+  list-style: none;
+  margin: .5rem 0;
+  padding: 0;
+}
+
+.error .title {
+  display: inline-block;
+  font-weight: bold;
+}
+.error .what {
+  display: inline-block;
+  font-style: italic;
+}
+.error .details {
+  display: block;
+  font-size: bold;
+  margin-top: .25rem;
+}
+
+footer {
+  margin-top: 2rem;
+  padding-bottom: 2rem;
+  position: sticky;
+  top: 100%;
+  width: 100%;
+}
+footer hr {
+  margin-bottom: .8rem;
+}

index.html

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+<!--
+Copyright (C) 2024 Eric Cornelissen
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+	<title>ades</title>
+	<meta charset="utf-8" />
+	<link rel="stylesheet" href="index.css">
+	<script src="wasm_exec.js"></script>
+</head>
+
+<body>
+	<noscript>
+		This website requires JavaScript and WebAssembly to run. The website's source code is
+		available on
+		<a
+			href="https://github.com/ericcornelissen/ades"
+			rel="noopener"
+		>GitHub</a>
+		, where the tool is also available as a standalone application.
+	</noscript>
+
+	<main>
+		<h1>Actions Dangerous Expressions Scanner</h1>
+		<div>
+			<p>
+				Paste your GitHub Actions workflow or manifest below and get a report of dangerous uses of
+				<a
+					href="https://docs.github.com/en/actions/learn-github-actions/expressions"
+					rel="noopener"
+				>expressions</a>
+				in it.</p>
+			<textarea
+				class="code"
+				id="workflow-input"
+				rows="24" cols="100"
+			>
+name: Example
+on: [push]
+
+jobs:
+  example:
+    name: example
+    runs-on: ubuntu-latest
+    steps:
+    - name: Safe run
+      run: echo 'Hello world!'
+    - name: Unsafe run
+      run: echo 'Hello ${{ inputs.name }}'
+			</textarea>
+		</div>
+		<div>
+			<h2>Report</h2>
+			<div id="results">
+				<i>Working...</i>
+			</div>
+		</div>
+	</main>
+
+	<footer>
+		<hr/>
+		<p>
+			Code available on
+			<a
+				href="https://github.com/ericcornelissen/ades"
+				rel="noopener"
+			>GitHub</a>
+			by
+			<a
+				href="https://ericcornelissen.dev/"
+				rel="noopener"
+			>@ericcornelissen</a>.
+		</p>
+	</footer>
+
+	<script src="index.js"></script>
+</body>
+
+</html>