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-rw-r--r--common/misc.js27
1 files changed, 17 insertions, 10 deletions
diff --git a/common/misc.js b/common/misc.js
index e609fe0..8096f27 100644
--- a/common/misc.js
+++ b/common/misc.js
@@ -42,9 +42,13 @@
* proprietary program, I am not going to enforce this in court.
*/
-/* uint8_to_hex is a separate function used in cryptographic functions. */
+/*
+ * uint8_to_hex is a separate function used in cryptographic functions and when
+ * dealing with binary data.
+ */
const uint8_to_hex =
array => [...array].map(b => ("0" + b.toString(16)).slice(-2)).join("");
+#EXPORT uint8_to_hex
/*
* Asynchronously compute hex string representation of a sha256 digest of a
@@ -61,8 +65,7 @@ async function sha256_async(string) {
* Generate a unique value that can be computed synchronously and is impossible
* to guess for a malicious website.
*/
-function gen_nonce(length=16)
-{
+function gen_nonce(length=16) {
const random_data = new Uint8Array(length);
crypto.getRandomValues(random_data);
return uint8_to_hex(random_data);
@@ -71,16 +74,10 @@ function gen_nonce(length=16)
/* Check if some HTTP header might define CSP rules. */
const csp_header_regex =
- /^\s*(content-security-policy|x-webkit-csp|x-content-security-policy)/i;
+ /^\s*(content-security-policy|x-webkit-csp|x-content-security-policy)\s*$/i;
#EXPORT csp_header_regex
/*
- * Print item together with type, e.g.
- * nice_name("s", "hello") → "hello (script)"
- */
-#EXPORT (prefix, name) => `${name} (${TYPE_NAME[prefix]})` AS nice_name
-
-/*
* Check if url corresponds to a browser's special page (or a directory index in
* case of `file://' protocol).
*/
@@ -90,3 +87,13 @@ const priv_reg = /^moz-extension:\/\/|^about:|^view-source:|^file:\/\/[^?#]*\/([
const priv_reg = /^chrome(-extension)?:\/\/|^about:|^view-source:|^file:\/\/[^?#]*\/([?#]|$)/;
#ENDIF
#EXPORT url => priv_reg.test(url) AS is_privileged_url
+
+/* Make it possible to serialize en Error object. */
+function error_data_jsonifiable(error) {
+ const jsonifiable = {};
+ for (const property of ["name", "message", "fileName", "lineNumber"])
+ jsonifiable[property] = error[property];
+
+ return jsonifiable;
+}
+#EXPORT error_data_jsonifiable