Progress bar support (v4.1.2):
- Web frontend: Real-time progress during encode with phase display
- CLI: --progress flag with rich library for encode command
- Backend: progress_file parameter for async progress reporting
DCT decode bug fix:
- Fixed InvalidMagicBytesError not being caught in early-exit check
- RS-protected format (v4.1.0+) has length prefix first, not magic bytes
- Exception handler now catches both ValueError and InvalidMagicBytesError
MOTD update:
- Added sparkly header to setup.sh MOTD (matches other rpi scripts)
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- System MOTD already shows banner, bashrc one was redundant
- Source bashrc immediately after copying for instant effect
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- Convert CRLF to LF before patching (jpegio uses Windows line endings)
- Update patch context to match current jpegio setup.py
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- Remove sparkle decoration lines from banner
- Reduce padding and margins on boxes
- Condense first steps to single line
- Condense commands to single line
- Simplify restart notice (no bordered box)
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New exceptions for specific decode failures:
- InvalidMagicBytesError: wrong mode or not a Stegasoo image
- ReedSolomonError: image too corrupted to recover
- NoDataFoundError, ModeMismatchError: additional clarity
Web UI now shows specific, actionable error messages:
- "Try a different mode (LSB/DCT)"
- "Image too corrupted, may have been re-saved"
- "Wrong credentials - check reference photo..."
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#4 Forced First-Login Setup:
- Add before_request hook to redirect to /setup if no users exist
- Skip redirect for static files and setup routes
#5 Dropzone UX Fixes:
- Make preview images clickable to replace file
- Make entire drop zone clickable
- QR zone resets after 2s on error, allowing retry
- Clear file input on error so same file can be re-selected
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- Try rpi-imager first (native .zst support, faster)
- Fall back to dd if rpi-imager unavailable or fails
- pv now optional (uses dd status=progress without it)
- Handles .zst.zip GitHub wrapper automatically
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- Move from rpi/ to tests/ directory
- Add to .gitignore (local tool, not part of distribution)
- Pytest unit tests remain tracked
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Smoke test improvements:
- Add --docker flag for testing Docker containers
- Skip SSH/systemd checks in Docker mode
- Docker health check verifies HTTP response
- Show "Docker Smoke Test" header in Docker mode
inject-wifi.sh:
- Add to repo (was gitignored)
- Add cleanup trap for robustness
- Supports NetworkManager (Bookworm) and wpa_supplicant (legacy)
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- Add support for .zst.zip wrapper (GitHub releases workaround)
- Update examples to use .zst format (current default)
- Update usage to show all supported formats
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- Check /login redirect to /setup instead of homepage redirect
- Use logout link presence to verify login success (encode/decode are public)
- Add -c flag to save cookies during homepage check
The smoke test was passing login even when not logged in because
encode/decode links are visible to everyone.
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- Add .dockerignore to exclude instance/, test_data/, rpi/, etc.
- Create instance/certs dirs in Dockerfile for volume mounts
- Ensures stego user can write to mounted volumes
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Clear iptables-restore service and rules so wizard can reconfigure
fresh. Fixes MOTD showing wrong port after re-running wizard.
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iptables requires root to read NAT rules. Instead check if the
iptables-restore service is enabled, which indicates 443 redirect
was configured.
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On SSH login, shows ASCII logo and active URL if service is running,
or instructions to start if not.
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Use `pyenv which python` instead of hardcoded path to handle
version mapping (3.12 -> 3.12.12).
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- Change .python-version from 3.12.0 to 3.12 (matches any 3.12.x)
- Update docs to use /opt/stegasoo instead of ~/stegasoo
- Add pre-setup steps: chown /opt, install git
- Renumber BUILD_IMAGE.md steps (now 9 steps)
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Three focused features:
1. Real progress bar for encode/decode (polling + progress file)
2. Granular decode error messages (custom exceptions, specific UI feedback)
3. Mobile-responsive polish (touch targets, stacked layouts, camera hints)
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- Better argument parsing for IP, --https, --443, --port=N
- Port 443 omits port from URL for cleaner output
- Ignore unknown flags instead of treating as IP
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- New step 10/11 removes overclock settings from /boot/firmware/config.txt
- Removes over_voltage, arm_freq, gpu_freq lines
- Skipped in soft reset mode (preserves for testing)
- Distributable image should let users configure via wizard
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- Show 6 key specs prominently as cards (Payload, Carrier, DCT/LSB capacity, Encryption, Error Correction)
- Add Reed-Solomon error correction info with v4.1 badge
- Move secondary specs to collapsible accordion
- Add reedsolo to "Built with" list
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- setup.sh: Add btop to apt install for temp monitoring
- first-boot-wizard: Add Step 4 for overclock configuration
- Detects Pi 4/5 model
- Asks about active cooling
- Offers appropriate overclock settings (2.0GHz Pi4, 2.8GHz Pi5)
- Prompts for restart if enabled
- decode.html: Make message box click-to-copy, remove separate button
- Shows "(click to copy)" hint
- Visual feedback on hover and copy
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- Clone stegasoo BEFORE building jpegio (need patch script)
- Create venv with explicit pyenv Python path
- Build jpegio INTO venv (not globally)
- Add python3-dev to apt dependencies
- Update step count from 9 to 11
This fixes the issue where jpegio was built globally, then pip
tried to reinstall unpatched jpegio from PyPI into the venv.
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Branch 4.1 includes Reed-Solomon error correction for DCT
steganography which is required for reliable operation.
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- Reed-Solomon error correction for DCT mode
- Elapsed time counter on encode/decode buttons
- Increased timeout to 300s for slow devices
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Shows running timer (e.g., "Encoding... 1:23") so users know
the operation is still working and not frozen.
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- Add reedsolo library for RS error correction (32 symbols = 16 byte correction per 223-byte chunk)
- Protect entire payload (header + data) with RS encoding
- Store 3 copies of length header with majority voting for robustness
- Handle RS chunking overhead (varies based on data size)
- Update capacity calculation to account for RS overhead (24 bytes prefix + variable RS overhead)
- Add RS to dct, web, and api optional dependencies
- Update about.html with v4.1.0 Reed-Solomon feature
- Update module docstring
This fixes DCT decode failures with certain carrier images that have
uniform areas causing unstable DCT coefficients.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Fix block calculation mismatch in DCT extract (use original dimensions)
- Change default dct_color_mode from "grayscale" to "color"
- Update DCT test to use noise image instead of solid color
- Remove debug logging from encode/decode paths
The block calculation fix ensures extract uses the same block positions
as embed for images whose dimensions aren't divisible by 8. This was
causing decode failures on the Pi web UI with 1195x671 images.
Color mode is now the default since it preserves the original image
colors. The test fixture now uses a random noise image because solid
color images cause coefficient drift during YCbCr/RGB conversion that
can corrupt embedded data.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Log stego file size and hash at:
- Encode result storage
- Download time
This will help identify if files are corrupted during
download/upload cycle.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
