Jsteg working

Dockerfile

@@ -5,13 +5,19 @@ FROM python:3.14-slim AS builder
 
 # Install wget only to download OpenStego
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    wget git build-essential \
+    wget git build-essential golang-go \
     && rm -rf /var/lib/apt/lists/*
 
 # Download OpenStego
 RUN wget https://github.com/syvaidya/openstego/releases/download/openstego-0.8.6/openstego_0.8.6-1_all.deb \
     -O /tmp/openstego.deb
 
+# Clone and build jsteg from source
+RUN git clone https://github.com/lukechampine/jsteg.git /tmp/jsteg
+RUN cd /tmp/jsteg && \
+    go build -o /usr/local/bin/jsteg ./cmd/jsteg && \
+    rm -rf /tmp/jsteg
+
 # Builder stage - add after other tool compilations
 RUN git clone https://github.com/h3xx/jphs.git /tmp/jphs
 RUN cd /tmp/jphs/jpeg-8a && ./configure && make
@@ -64,9 +70,10 @@ COPY aperisolve/ /app/aperisolve/
 # Install Python dependencies
 RUN pip install --no-cache-dir -r /app/aperisolve/requirements.txt
 
-# Copy jphide binaries
+# Copy jphide and jsteg binaries
 COPY --from=builder /usr/local/bin/jphide /usr/local/bin/jphide
 COPY --from=builder /usr/local/bin/jpseek /usr/local/bin/jpseek
+COPY --from=builder /usr/local/bin/jsteg /usr/local/bin/jsteg
 
 # Commande de lancement
 CMD ["gunicorn", "-w", "8", "-b", "0.0.0.0:5000", "--access-logfile", "-", "--error-logfile", "-", "--log-level", "info", "--capture-output", "aperisolve.utils.wsgi:application"]

aperisolve/analyzers/jsteg.py

@@ -0,0 +1,28 @@
+# flake8: noqa: E203,E501,W503
+# pylint: disable=C0413,W0718,R0903,R0801
+# mypy: disable-error-code=unused-awaitable
+"""Jsteg Analyzer for Image Submissions."""
+
+from pathlib import Path
+
+from .base_analyzer import SubprocessAnalyzer
+
+
+class JstegAnalyzer(SubprocessAnalyzer):
+    """Analyzer for jsteg."""
+
+    def __init__(self, input_img: Path, output_dir: Path) -> None:
+        super().__init__("jsteg", input_img, output_dir)
+        self.cmd = ["jsteg", "reveal", self.img]
+
+    def process_output(self, stdout: str, stderr: str) -> str | list[str]:
+        """Process the stdout into lines."""
+        if stdout.strip():
+            return [line for line in stdout.split("\n") if line.strip()]
+        return []
+
+
+def analyze_jsteg(input_img: Path, output_dir: Path) -> None:
+    """Analyze an image submission using jsteg."""
+    analyzer = JstegAnalyzer(input_img, output_dir)
+    analyzer.analyze()

aperisolve/static/js/aperisolve.js

@@ -11,6 +11,7 @@ const TOOL_ORDER = [
   "identify",
   "steghide",
   "jpseek",
+  "jsteg",
   "openstego",
   "zsteg",
   "strings"

aperisolve/workers.py

@@ -21,6 +21,7 @@ from .analyzers.file import analyze_file
 from .analyzers.foremost import analyze_foremost
 from .analyzers.identify import analyze_identify
 from .analyzers.jpseek import analyze_jpseek
+from .analyzers.jsteg import analyze_jsteg
 from .analyzers.openstego import analyze_openstego
 from .analyzers.outguess import analyze_outguess
 from .analyzers.pcrt import analyze_pcrt
@@ -112,6 +113,7 @@ def analyze_image(submission_hash: str) -> None:
                 (analyze_foremost, img_path, result_path),
                 (analyze_identify, img_path, result_path),
                 (analyze_jpseek, img_path, result_path, submission.password),
+                (analyze_jsteg, img_path, result_path),
                 (analyze_openstego, img_path, result_path, submission.password),
                 (analyze_pngcheck, img_path, result_path),
                 (analyze_pcrt, img_path, result_path),