refactor: reload file hierarchies

rename libs/src/platform/{linux => unix}

Signed-off-by: ClSlaid <cailue@bupt.edu.cn>

libs/clipboard/src/platform/unix/url.rs

@@ -0,0 +1,75 @@
+use std::path::{Path, PathBuf};
+
+use crate::CliprdrError;
+
+// on x11, path will be encode as
+// "/home/rustdesk/pictures/🖼️.png" -> "file:///home/rustdesk/pictures/%F0%9F%96%BC%EF%B8%8F.png"
+// url encode and decode is needed
+const ENCODE_SET: percent_encoding::AsciiSet = percent_encoding::CONTROLS.add(b' ').remove(b'/');
+
+pub(super) fn encode_path_to_uri(path: &PathBuf) -> String {
+    let encoded = percent_encoding::percent_encode(path.to_str().unwrap().as_bytes(), &ENCODE_SET)
+        .to_string();
+    format!("file://{}", encoded)
+}
+
+pub(super) fn parse_uri_to_path(encoded_uri: &str) -> Result<PathBuf, CliprdrError> {
+    let encoded_path = encoded_uri.trim_start_matches("file://");
+    let path_str = percent_encoding::percent_decode_str(encoded_path)
+        .decode_utf8()
+        .map_err(|_| CliprdrError::ConversionFailure)?;
+    let path_str = path_str.to_string();
+
+    Ok(Path::new(&path_str).to_path_buf())
+}
+
+// helper parse function
+// convert 'text/uri-list' data to a list of valid Paths
+// # Note
+// - none utf8 data will lead to error
+pub(super) fn parse_plain_uri_list(v: Vec<u8>) -> Result<Vec<PathBuf>, CliprdrError> {
+    let text = String::from_utf8(v).map_err(|_| CliprdrError::ConversionFailure)?;
+    parse_uri_list(&text)
+}
+
+// helper parse function
+// convert 'text/uri-list' data to a list of valid Paths
+// # Note
+// - none utf8 data will lead to error
+pub(super) fn parse_uri_list(text: &str) -> Result<Vec<PathBuf>, CliprdrError> {
+    let mut list = Vec::new();
+
+    for line in text.lines() {
+        if !line.starts_with("file://") {
+            continue;
+        }
+        let decoded = parse_uri_to_path(line)?;
+        list.push(decoded)
+    }
+    Ok(list)
+}
+
+#[cfg(test)]
+mod uri_test {
+    #[test]
+    fn test_conversion() {
+        let path = std::path::PathBuf::from("/home/rustdesk/pictures/🖼️.png");
+        let uri = super::encode_path_to_uri(&path);
+        assert_eq!(
+            uri,
+            "file:///home/rustdesk/pictures/%F0%9F%96%BC%EF%B8%8F.png"
+        );
+        let convert_back = super::parse_uri_to_path(&uri).unwrap();
+        assert_eq!(path, convert_back);
+    }
+
+    #[test]
+    fn parse_list() {
+        let uri_list = r#"file:///home/rustdesk/pictures/%F0%9F%96%BC%EF%B8%8F.png
+file:///home/rustdesk/pictures/%F0%9F%96%BC%EF%B8%8F.png
+"#;
+        let list = super::parse_uri_list(uri_list.into()).unwrap();
+        assert!(list.len() == 2);
+        assert_eq!(list[0], list[1]);
+    }
+}