1 files changed, 80 insertions, 0 deletions
diff --git a/toolkit/components/bitsdownload/src/bits_interface/string.rs b/toolkit/components/bitsdownload/src/bits_interface/string.rs
new file mode 100644
index 0000000000..c3111b7cba
--- /dev/null
+++ b/toolkit/components/bitsdownload/src/bits_interface/string.rs
@@ -0,0 +1,80 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+use super::{
+    action::Action,
+    error::{BitsTaskError, ErrorStage, ErrorType},
+};
+
+use bits_client::Guid;
+use nsstring::nsCString;
+use std::ffi::OsString;
+use std::{str, str::FromStr};
+
+/// This function is fallible, and the consumers would prefer a BitsTaskError
+/// in the failure case. To facilitate that, this function takes some params
+/// that give it the data necessary to construct the BitsTaskError if it fails.
+/// If it succeeds, those values will be unused.
+#[allow(non_snake_case)]
+pub fn nsCString_to_String(
+    value: &nsCString,
+    error_action: Action,
+    error_stage: ErrorStage,
+) -> Result<String, BitsTaskError> {
+    match String::from_utf8(value[..].to_vec()) {
+        Ok(s) => Ok(s),
+        Err(_) => Err(BitsTaskError::new(
+            ErrorType::NoUtf8Conversion,
+            error_action,
+            error_stage,
+        )),
+    }
+}
+
+/// This function is fallible, and the consumers would prefer a BitsTaskError
+/// in the failure case. To facilitate that, this function takes some params
+/// that give it the data necessary to construct the BitsTaskError if it fails.
+/// If it succeeds, those values will be unused.
+#[allow(non_snake_case)]
+pub fn nsCString_to_OsString(
+    value: &nsCString,
+    error_action: Action,
+    error_stage: ErrorStage,
+) -> Result<OsString, BitsTaskError> {
+    Ok(OsString::from(nsCString_to_String(
+        value,
+        error_action,
+        error_stage,
+    )?))
+}
+
+/// This function is fallible, and the consumers would prefer a BitsTaskError
+/// in the failure case. To facilitate that, this function takes some params
+/// that give it the data necessary to construct the BitsTaskError if it fails.
+/// If it succeeds, those values will be unused.
+#[allow(non_snake_case)]
+pub fn Guid_from_nsCString(
+    value: &nsCString,
+    error_action: Action,
+    error_stage: ErrorStage,
+) -> Result<Guid, BitsTaskError> {
+    let vector = &value[..].to_vec();
+    let string = match str::from_utf8(vector) {
+        Ok(s) => s,
+        Err(_) => {
+            return Err(BitsTaskError::new(
+                ErrorType::NoUtf8Conversion,
+                error_action,
+                error_stage,
+            ));
+        }
+    };
+    Guid::from_str(string).map_err(|comedy_error| {
+        BitsTaskError::from_comedy(
+            ErrorType::InvalidGuid,
+            error_action,
+            error_stage,
+            comedy_error,
+        )
+    })
+}