servo/components/net_traits/blob_url_store.rs

44 lines
1.3 KiB
Rust

/* 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 std::str::FromStr;
use url::Url;
use uuid::Uuid;
/// Errors returns to BlobURLStoreMsg::Request
#[derive(Clone, Debug, Serialize, Deserialize)]
pub enum BlobURLStoreError {
/// Invalid File UUID
InvalidFileID,
/// Invalid URL origin
InvalidOrigin,
/// Invalid entry content
InvalidEntry,
/// External error, from like file system, I/O etc.
External,
}
/// Blob URL store entry, a packaged form of Blob DOM object
#[derive(Clone, Serialize, Deserialize)]
pub struct BlobURLStoreEntry {
/// MIME type string
pub type_string: String,
/// Size of content in bytes
pub size: u64,
/// Content of blob
pub bytes: Vec<u8>,
}
/// Parse URL as Blob URL scheme's definition
/// https://w3c.github.io/FileAPI/#DefinitionOfScheme
pub fn parse_blob_url(url: &Url) -> Option<(Uuid, Option<&str>)> {
url.path_segments().and_then(|mut segments| {
let id_str = match (segments.next(), segments.next()) {
(Some(s), None) => s,
_ => return None,
};
Uuid::from_str(id_str).map(|id| (id, url.fragment())).ok()
})
}