The format that likely works with Amnezia Android is:
HEADER: 0x07C00100 (Magic 1984, Count 1, Id 0)
PAYLOAD: [UncompressedLen (4b)] + [Zlib Data]
This satisfies the Chunked QR check (magic 0x07C0) and then passes
the payload to qUncompress, which expects the 4-byte uncompressed length prefix.
Previous attempts failed because:
1. 12-byte header included compressedLen, which qUncompress interpreted as uncompressedLen (causing size mismatch error)
2. 4-byte header (Qt only) failed the Magic check
Amnezia Android expects the contents of 'last_config' to be a JSON object
containing a 'config' field which holds the actual protocol configuration string.
Previously we were putting the configuration directly into 'last_config',
which caused the import to fail.
The working QR format from Amnezia app uses:
- 12-byte header: version (0x07C00100) + compressedLen + uncompressedLen
- zlib compressed JSON data
Previously I incorrectly changed this to Qt qCompress format (4-byte header).
This commit reverts to the correct Amnezia-compatible format.
Amnezia Android uses qUncompress which expects:
- 4-byte big-endian uncompressed length prefix
- zlib compressed data (gzcompress output)
Previously we used a custom 12-byte header (version, compressedLen, uncompressedLen)
which was incompatible with Qt's qUncompress.
This fix ensures X-Ray QR codes can be properly decoded by Amnezia VPN app.
infosave2007