Juan Fernando Castro
1ff5d93244
* fix: a signed overwrite lands on the live key only once its completion is accepted A presigned overwrite URL was signed against the live object key, so the browser's PUT replaced the owner's bytes directly. That PUT never passes through Puter, which leaves the access check on `completeWrite` with nothing left to protect: by the time it runs, what /read serves has already changed. The upload now goes to a key of its own. `completeWrite` is already the authorized step, so that is where the staged object is copied onto the live key, server-side, and the staged one dropped. The entry keeps its uuid, so everything written against it still holds. Aborting deletes the staged object, which the old shared key made unsafe to do. `copyObjectOfAnySize` carries the copy past the single-request ceiling by copying part by part, so a large file is no different. Two behaviours follow from the key no longer being shared: completing an overwrite that uploaded nothing is refused rather than reported as an overwrite of unchanged bytes, and abort always drops the session's object. Only the two presigned paths changed; `prepareBatchWrites` uploads server-side within one authorized request and still writes in place. * fix: the review's findings on the staged overwrite The batch signed path still signed against the live key, so the route the SDK's signed upload actually takes was unchanged. It stages now, which also makes the abort simplification safe: the guard that had protected a shared key was removed while that path still shared one, so aborting a batch overwrite would have deleted the owner's object. The completion is allowed against a path but lands on the uuid captured at start, and a move between the two puts the bytes somewhere the caller was never authorized for. The promote refuses unless the entry is still where the check looked. The batch promote failing left every session pending with its lease held; it now fails them as the rest of the function does. The pending GUI tile and the thumbnail key were keyed on the staged uuid, which no entry ever carries, so neither correlated with what the completion emitted. Responses carry `entryUid` for that. * fix: do not treat a pre-staging session's key as this upload's own A session signed by the previous release points straight at the live key, since `objectKey` was `existingEntry?.uuid ?? uuidv4()`. Completing one is already handled -- the promote returns early when the two keys match -- but abort deleted `objectKey` unconditionally, which during a rolling deploy would take the owner's file rather than the upload's litter. Abort now deletes only a key the upload owns. The multipart branch was always safe: discarding parts never touches an object already in place.
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Puter
Puter is an advanced, open-source, self-hostable internet computer designed to be feature-rich, fast, and highly extensible.
For Users
Puter's goal is to provide you with every app and feature you need to work, create, and play under one roof. From a simple Notepad and Voice Recorder to Spreadsheet and Camera, Puter wants to be the all-in-one solution for your digital life.
For Developers
Puter provides everything you need to build and publish web apps and games. From AI to Cloud Storage and Database to Serverless Workers, Puter has you covered. Puter also helps you get users! Once you build your app, you can publish it on our App Store to reach and monetize users.
Getting Started
💻 Local Development
git clone https://github.com/HeyPuter/puter
cd puter
npm install
npm start
→ This should launch Puter at http://puter.localhost:4100
To run this checkout with Docker, follow Building from source. Create a local docker-compose.override.yml to select the local build; keeping these settings out of docker-compose.yml avoids conflicts when pulling updates and keeps local configuration out of pull requests.
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Linux/macOS
curl -fsSL https://puter.com/selfhost | sh
Windows
irm https://puter.com/selfhost?os=windows | iex
→ For more details, see Self-Hosting Puter.
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This repository, including all its contents, sub-projects, modules, and components, is licensed under AGPL-3.0 unless explicitly stated otherwise. Third-party libraries included in this repository may be subject to their own licenses.
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