Ghost FTP v0.99.62 Preview — secure Agent delta transfers
Publisher: BRENDIGO · https://brendigo.com
Current development candidate: v0.99.62 Preview · Previous published version: v0.99.61
Prioritized improvements
- The shared controller/daemon delta engine at
ghostftp-agent-proto/src/delta.rsnow creates output exclusively. An existing file or symlink is never truncated or deleted on error, and incomplete files are cleaned up only when created by this invocation. - The desktop Agent delta path verifies reconstructed on-disk byte counts and durability. Existing real-file destinations use one atomic filesystem rename without first moving the live file to a backup; missing destinations use atomic no-replace promotion. Existing symlinks and directories are rejected.
- Untrusted Agent delta chunk lengths are validated against each remaining requested range before writing.
- Agent patch files are exclusively created and only locally owned patch/output paths may be cleaned up on failure.
- The remote Agent daemon validates delta targets, checks reused-byte counters for overflow, and never deletes an unowned output after exclusive creation fails.
- Shared staging and local promotion logic is extracted into
transfer/download_staging.rsto simplify maintenance across FTP/FTPS/SFTP/cloud backends. - Regression cases and static security contracts protect the new behaviour without changing user profile schema, OS-vault credentials, connection IDs, or Tauri command APIs.
Requirements before release
Exact-HEAD CI must pass Rust formatting, full workspace checks/tests/Clippy, TypeScript/frontend, Go vet/race, repository security/dead-code scans, real FTP/FTPS/SFTP E2E, Windows hardening and Windows/Linux native builds. Verify manifest and immutable Preview packaging before publication.
Preview does not imply a signed Stable release or guarantee manual real-provider, installer upgrade/rollback, cross-device display or accessibility acceptance.
Linux installation: choose the correct Ghost FTP package
Platform: Linux x86_64 / amd64. These are package-family labels, not
certifications that every distribution/version has been tested. The native
Windows/Linux build currently runs on an Ubuntu 22.04 x86_64 GitHub runner;
installed-device checks across other distributions remain required.
| Linux edition in GitHub Releases | Intended distribution / installation family | Important prerequisite |
|---|---|---|
GhostFTP-Linux-amd64-v<VERSION>.deb
| Debian, Ubuntu, Linux Mint, Pop!_OS, and compatible Debian-family amd64 systems | APT/dpkg dependencies, WebKitGTK 4.1 and compatible GTK/GLib; test on the target distro release. |
GhostFTP-Linux-x86_64-v<VERSION>.rpm
| Fedora, openSUSE, RHEL-compatible RPM-based x86_64 systems | RPM runtime dependencies, WebKitGTK and GTK availability differ. Package format alone does not prove the build launches. |
GhostFTP-Linux-x86_64-v<VERSION>.AppImage
| Portable / cross-distribution candidate for many glibc-based x86_64 desktop systems | Check FUSE/AppImage runtime, compatible glibc, WebKitGTK/GTK libraries and display server. Not guaranteed universal. |
GhostFTP-Linux-x86_64-v<VERSION> / .tar.gz
| Manual / advanced installation on compatible x86_64 desktop Linux | Not statically linked; administrators must supply all system runtime dependencies and desktop integration. |
Replace <VERSION> with the exact published tag number. Verify
GhostFTP-v<VERSION>-SHA256SUMS.txt before executing installers. A SHA-256
checksum only verifies integrity against that manifest; it does not prove
publisher identity or replace a cryptographic code signature.
No native package is currently built for Linux ARM64/aarch64,
32-bit x86, musl-only Alpine, or every NixOS/immutable-container configuration.
Arch Linux, Manjaro, EndeavourOS, Gentoo, elementary OS and others may be
candidates for AppImage/manual installation, but are not certified based
solely on an Ubuntu runner. Check compatible dependencies first; do not force a
Debian RPM/DEB package onto an unrelated distribution. On Wayland systems,
GTK/WebKit or XWayland availability can affect behavior.
Required acceptance before claiming distribution support
For each distribution and version named as tested, record its exact image
version, x86_64 architecture, display protocol (X11/Wayland), WebKitGTK/GTK
versions, GNOME Keyring/KWallet state, and the native binary hash. Verify:
- Install, first launch, File Manager/Sites/Transfers/Settings/Sync navigation,
resize at 1290×852 and 480×600, and correct keyboard focus. - FTP warning, verified FTPS TLS and SFTP SSH host-key checks on actual
endpoints; failed identity checks must not connect. - Queue retry/cancel, interrupted upload/download preservation, symlink and
overwrite safety, and shutdown/restart without losing profile metadata. - OS-backed credentials with locked and unavailable Secret Service; no
plaintext fallback or secret-bearing logs. - Uninstall and reinstall without silently deleting stored user documents,
connection profiles, or keys.
Current GitHub Actions Linux QA produces real Xvfb/WebKit screenshots of
seven core workspaces, not mockups. Those captures prove native rendering under
the CI environment; they do not certify a GNOME/KDE/Wayland distro or pixel
parity with all 29 user-supplied Linux design references.
Related: Linux handbook ·
Native desktop build ·
Published releases.
Operational prerequisites for unsigned desktop builds
Running the native binary does not require a purchased signing certificate. Verify the SHA-256 checksum of your package against the matching official release manifest; this validates file integrity, not cryptographic publisher identity. Saved credentials require an unlocked Secret Service provider and the secret-tool client (the DEB declares libsecret-tools, the RPM declares libsecret). An unavailable vault is a blocking error, not a reason to store plaintext passwords. Before upgrading, create an encrypted backup and ensure all transfers are finished. The desktop Updates screen offers the complete GitHub Releases index because signed auto-updates and manually downloadable package editions are independent.