Warren
55bca92691
Core features: - Class 1 T.30 protocol: full send/receive implementation - HDLC: DLE-stuffing, FCS strip, USR5637 bit-reversal handling - T.4 MH encoder/decoder (1728px A4 standard) - Document pipeline: PDF (Ghostscript), PNG, TIFF input - Width clamping: US Letter 1734px → 1728px fax standard - Cover page: CJK rasterization (TW/CN/JP/EN), TIFF + HTML output - OCR verification: Tesseract 5 with eng+chi_tra, CJK space-tolerant - API server (axum): health, send, jobs, cover, retry, cancel - Background worker: auto-poll queue, speed fallback, retry policy - Modem detection, pool management Real-world test results (2026-07-23): - V90 → 25153038: 4 pages, V.17 12000 bps, 2:33 ✅ - USR5637 → 25153038: 4 pages, V.17 12000 bps, 2:26 ✅ - Both faxes confirmed received on remote machine Tested: loopback (100% pixel match), multi-page, all input formats, cover pages, OCR verify, API endpoints, worker processing. 13 unit tests pass, 0 new clippy warnings.
87 lines
3.6 KiB
Python
Executable File
87 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
"""Generate a demo business letter as a fax-ready TIFF."""
|
|
from PIL import Image, ImageDraw, ImageFont
|
|
import sys, os
|
|
|
|
W, H = 1728, 2291 # A4 at 204x196 dpi
|
|
|
|
def create_demo_document(output_path):
|
|
img = Image.new('L', (W, H), 255)
|
|
draw = ImageDraw.Draw(img)
|
|
|
|
# Try to load fonts — fall back to default
|
|
try:
|
|
title_font = ImageFont.truetype('/System/Library/Fonts/Helvetica.ttc', 72)
|
|
h1_font = ImageFont.truetype('/System/Library/Fonts/Helvetica.ttc', 48)
|
|
body_font = ImageFont.truetype('/System/Library/Fonts/Helvetica.ttc', 36)
|
|
small_font = ImageFont.truetype('/System/Library/Fonts/Helvetica.ttc', 28)
|
|
except:
|
|
title_font = h1_font = body_font = small_font = ImageFont.load_default()
|
|
|
|
# ── Letterhead ──
|
|
draw.rectangle([0, 0, W, 180], fill=0)
|
|
draw.text((80, 40), "TELFAX CORPORATION", fill=255, font=title_font)
|
|
draw.text((80, 130), "Digital Fax Solutions", fill=200, font=small_font)
|
|
|
|
# horizontal rule
|
|
draw.line([80, 200, W-80, 200], fill=100, width=4)
|
|
|
|
# ── Date & Reference ──
|
|
draw.text((80, 240), "Date: July 21, 2026", fill=0, font=body_font)
|
|
draw.text((80, 290), "Reference: TFX-2026-07-21-001", fill=0, font=body_font)
|
|
draw.text((80, 340), "To: ACME Corporation", fill=0, font=body_font)
|
|
draw.text((80, 390), " Attn: Mr. John Smith", fill=0, font=body_font)
|
|
draw.text((80, 440), " Fax: +1-555-0199", fill=0, font=body_font)
|
|
draw.text((80, 490), "From: Jane Doe, CTO", fill=0, font=body_font)
|
|
draw.text((80, 540), " Telfax Corp", fill=0, font=body_font)
|
|
draw.text((80, 590), " Fax: +886-2-2748-6656", fill=0, font=body_font)
|
|
|
|
draw.line([80, 640, W-80, 640], fill=0, width=2)
|
|
|
|
# ── Subject ──
|
|
draw.text((80, 680), "Subject: Business Proposal for Enterprise Fax Solution", fill=0, font=h1_font)
|
|
|
|
# ── Body ──
|
|
body_text = [
|
|
"Dear Mr. Smith,",
|
|
"",
|
|
"We are pleased to submit our proposal for an enterprise-grade digital",
|
|
"fax solution to replace ACME Corporation's legacy fax infrastructure.",
|
|
"",
|
|
"Our solution offers the following key benefits:",
|
|
"",
|
|
" 1. Cost reduction of up to 80% on international fax transmissions",
|
|
" 2. Complete audit trail with encrypted storage for compliance",
|
|
" 3. Seamless integration with existing PBX and email systems",
|
|
" 4. Support for T.38 IP fax and traditional PSTN (Class 1/2)",
|
|
" 5. Multi-language cover pages with OCR verification",
|
|
"",
|
|
"This document was transmitted via real POTS lines using the telfax",
|
|
"open-source fax system running on macOS at V.27ter 4800 bps.",
|
|
"",
|
|
"We look forward to discussing this opportunity with you.",
|
|
"",
|
|
"Best regards,",
|
|
"",
|
|
"Jane Doe",
|
|
"Chief Technology Officer",
|
|
"Telfax Corporation",
|
|
]
|
|
y = 780
|
|
for line in body_text:
|
|
draw.text((80, y), line, fill=0, font=body_font)
|
|
y += 52
|
|
|
|
# ── Footer ──
|
|
draw.line([80, y+40, W-80, y+40], fill=180, width=2)
|
|
draw.text((80, y+60),
|
|
"Page 1 of 1 | This fax was transmitted via telfax (opencode.ai) | 204x196 dpi Fine",
|
|
fill=120, font=small_font)
|
|
|
|
img.save(output_path, dpi=(204, 196))
|
|
print(f"Demo document created: {output_path} ({W}x{H} px)")
|
|
|
|
if __name__ == '__main__':
|
|
out = sys.argv[1] if len(sys.argv) > 1 else "/tmp/demo_document.tif"
|
|
create_demo_document(out)
|