cf45cbf429
This PR replaces the existing Python-driven sync server with a new one in Rust. The new server supports both collection and media syncing, and is compatible with both the new protocol mentioned below, and older clients. A setting has been added to the preferences screen to point Anki to a local server, and a similar setting is likely to come to AnkiMobile soon. Documentation is available here: <https://docs.ankiweb.net/sync-server.html> In addition to the new server and refactoring, this PR also makes changes to the sync protocol. The existing sync protocol places payloads and metadata inside a multipart POST body, which causes a few headaches: - Legacy clients build the request in a non-deterministic order, meaning the entire request needs to be scanned to extract the metadata. - Reqwest's multipart API directly writes the multipart body, without exposing the resulting stream to us, making it harder to track the progress of the transfer. We've been relying on a patched version of reqwest for timeouts, which is a pain to keep up to date. To address these issues, the metadata is now sent in a HTTP header, with the data payload sent directly in the body. Instead of the slower gzip, we now use zstd. The old timeout handling code has been replaced with a new implementation that wraps the request and response body streams to track progress, allowing us to drop the git dependencies for reqwest, hyper-timeout and tokio-io-timeout. The main other change to the protocol is that one-way syncs no longer need to downgrade the collection to schema 11 prior to sending.
39 lines
1016 B
Rust
39 lines
1016 B
Rust
// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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use std::env;
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use lazy_static::lazy_static;
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pub fn version() -> &'static str {
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include_str!("../../.version").trim()
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}
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pub fn buildhash() -> &'static str {
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option_env!("BUILDHASH").unwrap_or("dev").trim()
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}
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pub(crate) fn sync_client_version() -> &'static str {
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lazy_static! {
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static ref VER: String = format!(
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"anki,{version} ({buildhash}),{platform}",
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version = version(),
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buildhash = buildhash(),
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platform = env::var("PLATFORM").unwrap_or_else(|_| env::consts::OS.to_string())
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);
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}
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&VER
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}
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pub(crate) fn sync_client_version_short() -> &'static str {
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lazy_static! {
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static ref VER: String = format!(
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"{version},{buildhash},{platform}",
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version = version(),
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buildhash = buildhash(),
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platform = env::consts::OS
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);
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}
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&VER
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}
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