A WeTransfer-style sharing surface where the files live in a designated directory on your own server, not in a third-party cloud. Coelion sits at the edge of your server and serves that directory directly: senders drop files in, recipients sign in to download. Every read, upload and download passes through the same per-request access check and the same access log as the rest of the platform. No file ever leaves your infrastructure.
The browser only ever talks to the gateway. The files live in a designated directory on your disk. Nothing else on the server is reachable from the outside.
A regulated bank sends a portfolio export to a counterparty without paying the GDPR Article 44 transfer cost. A hospital shares a study extract with an external auditor, on its own server, in its own jurisdiction. A defence contractor delivers a build artefact to a customer through the same gateway that fronts the rest of the platform. A legal team collects discovery files from outside counsel into a read-write drop zone on the firm's disk.
Uploads stream straight to disk through the upload handler, bypassing in-memory aggregation. Downloads over 10 MB stream straight from disk to the client; smaller files are sent in a single buffered response. The cap on upload size is your configurable file.upload_limit (default 10 MB); the real ceiling is the disk you allocate. Folder browsing read-only (download surface) or read-write (drop zone), per directory. Every upload and download produces one access-log line on your server: identity (or anonymous), client IP, directory, HTTP method, URI, status code, response bytes, duration, browser, session. Encryption in transit through HTTPS; at-rest storage is the host filesystem and follows your existing disk-encryption policy.