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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- 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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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>
Debug prints need file=sys.stderr to appear in journalctl output.
Encode route was fixed but decode was still using plain print().
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Consolidate Tools into single card with tab toggle (Capacity/EXIF/Strip)
- Remove non-functional Peek feature (requires keys due to PRNG scattering)
- Add lime green (#a3e635) tool tab styling
- Add light straw gold (#fee862) card header text site-wide
- Add subtle drop shadow to headers and warning text
- Match Tools page styling to Encode/Decode pages
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Recovery key generation (32-char alphanumeric, dashed format)
- Multiple backup methods: text file, QR code, stego image
- QR codes obfuscated with XOR (RECOVERY_OBFUSCATION_KEY constant)
- Stego backup hides key in image using Stegasoo itself
- CLI: `stegasoo admin recover --db path/to/db`
- Web routes: /recover, /account/recovery/regenerate
- Toast notifications now auto-dismiss after 20s with fade
- Updated WEB_UI.md and CLI.md documentation for v4.1.0
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Replace redirect flow with AJAX + modal popup
- Show credentials side-by-side (username | password)
- Compact warning message and right-aligned action buttons
- Add Another resets form, Done returns to user list
- Narrow flash messages to match card width
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- Rewrite auth.py for multi-user schema (users table with roles)
- Auto-migrate from single-user admin_user table to new schema
- Add @admin_required decorator for protected routes
- Admin routes: /admin/users, /admin/users/new, delete, reset-password
- New templates: admin/users.html, user_new.html, user_created.html, password_reset.html
- Update login.html for username field, base.html and account.html for admin nav
- Max 16 users + 1 admin, session invalidation on delete/password reset
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Fix XSS in stegasoo.js: use textContent instead of innerHTML for filenames
- Fix operator precedence in channel key parsing (form data was ignored)
- Persist Flask secret key to instance/.secret_key so sessions survive restarts
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- Add STEGASOO_PORT environment variable support (default: 5000)
- Update .env.example with port and fix channel key format docs
- Move channel key generation to collapsible accordion in Generate page
- Improve RPi setup.sh output with HTTPS and channel key instructions
- Add rpi/BUILD_IMAGE.md workflow documentation
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- Add single-admin login with SQLite3 user storage
- First-run setup wizard for admin account creation
- Account management page for password changes
- Optional HTTPS with auto-generated self-signed certificates
- Configurable via STEGASOO_AUTH_ENABLED, STEGASOO_HTTPS_ENABLED env vars
- UI improvements: larger QR previews, consistent panel styling
- Update docker-compose.yml with auth config and persistent volumes
- Update all documentation for v4.0.2
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