Add Network site document(s)

Upload document(s) to a network site. Two modes — multipart (default) and chunked (when the Content-Range header is set).

Common rules

• Allowed extensions: doc, docx, txt, pdf, rtf.
• Max size: 50 MB per file.

Multipart

• Body: files[] + network_site_id.
• All-or-nothing: if any file fails MIME/size validation, nothing is committed.

Chunked (Content-Range: bytes {start}-{end}/{total})

• Body per chunk: file (chunk bytes) + hash (session id, same across all chunks of one file). network_site_id only on the first chunk; subsequent chunks load it from the session.
• Chunks must arrive in order: first chunk start = 0, each next chunk start = size of assembled file on disk. Out-of-order chunks abort the upload and clean up the session.
• Upfront total > 50 MB is rejected before the first byte is written.
• The final chunk runs full MIME/size re-validation on the assembled file.
• Intermediate chunks → 200 {"result": true}; final chunk → 201 with one NetworkSiteDocumentResponse.