chore: add prismjs for syntax highlighting

1 files changed, 78 insertions, 0 deletions

diff --git a/public/prism/prism-csp.js b/public/prism/prism-csp.js
new file mode 100644
index 0000000..ed8c852
--- /dev/null
+++ b/public/prism/prism-csp.js
@@ -0,0 +1,78 @@
+/**
+ * Original by Scott Helme.
+ *
+ * Reference: https://scotthelme.co.uk/csp-cheat-sheet/
+ *
+ * Supports the following:
+ *  - https://www.w3.org/TR/CSP1/
+ *  - https://www.w3.org/TR/CSP2/
+ *  - https://www.w3.org/TR/CSP3/
+ */
+
+(function (Prism) {
+  /**
+   * @param {string} source
+   * @returns {RegExp}
+   */
+  function value(source) {
+    return RegExp(
+      /([ \t])/.source + '(?:' + source + ')' + /(?=[\s;]|$)/.source,
+      'i'
+    );
+  }
+
+  Prism.languages.csp = {
+    directive: {
+      pattern:
+        /(^|[\s;])(?:base-uri|block-all-mixed-content|(?:child|connect|default|font|frame|img|manifest|media|object|prefetch|script|style|worker)-src|disown-opener|form-action|frame-(?:ancestors|options)|input-protection(?:-(?:clip|selectors))?|navigate-to|plugin-types|policy-uri|referrer|reflected-xss|report-(?:to|uri)|require-sri-for|sandbox|(?:script|style)-src-(?:attr|elem)|upgrade-insecure-requests)(?=[\s;]|$)/i,
+      lookbehind: true,
+      alias: 'property',
+    },
+    scheme: {
+      pattern: value(/[a-z][a-z0-9.+-]*:/.source),
+      lookbehind: true,
+    },
+    none: {
+      pattern: value(/'none'/.source),
+      lookbehind: true,
+      alias: 'keyword',
+    },
+    nonce: {
+      pattern: value(/'nonce-[-+/\w=]+'/.source),
+      lookbehind: true,
+      alias: 'number',
+    },
+    hash: {
+      pattern: value(/'sha(?:256|384|512)-[-+/\w=]+'/.source),
+      lookbehind: true,
+      alias: 'number',
+    },
+    host: {
+      pattern: value(
+        /[a-z][a-z0-9.+-]*:\/\/[^\s;,']*/.source +
+          '|' +
+          /\*[^\s;,']*/.source +
+          '|' +
+          /[a-z0-9-]+(?:\.[a-z0-9-]+)+(?::[\d*]+)?(?:\/[^\s;,']*)?/.source
+      ),
+      lookbehind: true,
+      alias: 'url',
+      inside: {
+        important: /\*/,
+      },
+    },
+    keyword: [
+      {
+        pattern: value(/'unsafe-[a-z-]+'/.source),
+        lookbehind: true,
+        alias: 'unsafe',
+      },
+      {
+        pattern: value(/'[a-z-]+'/.source),
+        lookbehind: true,
+        alias: 'safe',
+      },
+    ],
+    punctuation: /;/,
+  };
+})(Prism);