Raimund J. Ober

40 papers B 1C 3Journal 19Unranked 17
YearRankTypeTitle / Venue / Authors
2022 J jnl
SIAM J. Imaging Sci.
Alix Marie d'Avigneau, Sumeetpal S. Singh, Raimund J. Ober
2021 J jnl
IEEE Trans. Computational Imaging
Milad R. Vahid, Bernard Hanzon, Raimund J. Ober
2020 J jnl
SIAM J. Imaging Sci.
Milad R. Vahid, Bernard Hanzon, Raimund J. Ober
2017 C conf
ISCAS
Dongyun Lin, Zhiping Lin, Ramraj Velmurugan, Raimund J. Ober
2015 C conf
ISCAS
Zhiping Lin, Yau Wong, Raimund J. Ober
2015 J jnl
IEEE Signal Process. Mag.
Raimund J. Ober, Amir Tahmasbi, Sripad Ram, Zhiping Lin, Elizabeth Sally Ward
2013 J jnl
Multidimens. Syst. Signal Process.
Sripad Ram, Elizabeth Sally Ward, Raimund J. Ober
2013 J jnl
IEEE Trans. Signal Process.
Ed A. K. Cohen, Raimund J. Ober
2013 C conf
ISCAS
Zhiping Lin, Yau Wong, Raimund J. Ober
2012 conf
ISBI
Sripad Ram, Sally E. Ward, Raimund J. Ober
2012 conf
ISBI
Yau Wong, Zhiping Lin, Raimund J. Ober
2012 J jnl
Multidimens. Syst. Signal Process.
Jerry Chao, Sally E. Ward, Raimund J. Ober
2012 conf
ISBI
Ed A. K. Cohen, Raimund J. Ober
2012 conf
ACSCC
Ed A. K. Cohen, Raimund J. Ober
2011 J jnl
IEEE Trans. Signal Process.
Yau Wong, Zhiping Lin, Raimund J. Ober
2010 J jnl
IEEE Trans. Inf. Technol. Biomed.
Jerry Chao, Sally E. Ward, Raimund J. Ober
2009 conf
ISBI
Jerry Chao, Sripad Ram, Sally E. Ward, Raimund J. Ober
2008 conf
ISBI
Jerry Chao, Sripad Ram, Sally E. Ward, Raimund J. Ober
2008 conf
ACSCC
Sripad Ram, Prashant Prabhat, Jerry Chao, Anish V. Abraham, E. Sally Ward, Raimund J. Ober
2007 conf
ISBI
Sripad Ram, Sally E. Ward, Raimund J. Ober
2006 J jnl
Multidimens. Syst. Signal Process.
Sripad Ram, Elizabeth Sally Ward, Raimund J. Ober
2006 conf
ISBI
Sripad Ram, Sally E. Ward, Raimund J. Ober
2006 J jnl
IEEE Trans. Signal Process.
Qiyue Zou, Zhiping Lin, Raimund J. Ober
2005 J jnl
IEEE Signal Process. Lett.
Zhiping Lin, Qiyue Zou, Elizabeth Sally Ward, Raimund J. Ober
2005 conf
ISCAS (4)
Raimund J. Ober, Zhiping Lin, Qiyue Zou
2005 J jnl
Multidimens. Syst. Signal Process.
Raimund J. Ober, Xuming Lai, Zhiping Lin, E. Sally Ward
2005 conf
ISCAS (2)
Qiyue Zou, Zhiping Lin, Raimund J. Ober
2004 B conf
ICIP
Raimund J. Ober, Xuming Lai, Zhiping Lin, Sally E. Ward
2004 J jnl
Syst. Control. Lett.
L. R. Hunt, Sally E. Ward, Raimund J. Ober
2004 conf
ISBI
Raimund J. Ober, Sripad Ram, Sally E. Ward
2003 J jnl
IEEE Trans. Signal Process.
Raimund J. Ober, Qiyue Zou, Zhiping Lin
2003 conf
ICASSP (3)
Zhiping Lin, Qiyue Zou, Raimund J. Ober
2003 conf
ISCAS (3)
Qiyue Zou, Zhiping Lin, Raimund J. Ober
2002 J jnl
Syst. Control. Lett.
Raimund J. Ober
2001 J jnl
SIAM J. Control. Optim.
Bernard Hanzon, Raimund J. Ober
2001 conf
CDC
Viswanath Ramakrishna, Raimund J. Ober, Kathryn L. Flores, Herschel Rabitz
2000 conf
CDC
Viswanath Ramakrishna, Kathryn L. Flores, Herschel Rabitz, Raimund J. Ober
2000 conf
CDC
Raimund J. Ober, Viswanath Ramakrishna, E. Sally Ward
1993 J jnl
Autom.
J. A. Sefton, Raimund J. Ober
1993 J jnl
Autom.
J. A. Sefton, Raimund J. Ober
tests/scripts/test_macho_extractors_local.py
← Index tests/scripts/test_macho_extractors_local.py python
#!/usr/bin/env python3
"""
Local MachO extractors test - test actual extractors without server connections
"""

import sys
import os
import logging
import hashlib
from datetime import datetime, timezone
from typing import Dict, Any, Optional
from unittest.mock import Mock, patch

# Add the redb directory to the path so we can import the extractors
sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'redb'))

# Mock settings to avoid database connections
with patch.dict('os.environ', {'REDB_ENV': 'test'}):
    # Import the actual extractors
    from redb.extractors.macho_extractors.macho_features import MachOFeaturesExtractor
    from redb.extractors.macho_extractors.macho_segments import MachOSegmentExtractor
    from redb.extractors.macho_extractors.macho_imports import MachOImportExtractor
    from redb.extractors.macho_extractors.macho_exports import MachOExportExtractor
    from redb.extractors.macho_extractors.macho_dylibs import MachODylibExtractor
    from redb.extractors.macho_extractors.macho_signature import MachOSignatureExtractor
    from redb.extractors.macho_extractors.macho_universal import MachOUniversalExtractor

def setup_logging():
    """Setup basic logging configuration."""
    logging.basicConfig(
        level=logging.INFO,
        format='%(asctime)s - %(levelname)s - %(message)s'
    )
    return logging.getLogger(__name__)

class MockLogger:
    """Mock logger for testing without RedB dependencies."""
    def __init__(self):
        self.logger = logging.getLogger(__name__)
    
    def debug(self, msg):
        self.logger.debug(msg)
    
    def info(self, msg):
        self.logger.info(msg)
    
    def warning(self, msg):
        self.logger.warning(msg)
    
    def error(self, msg):
        self.logger.error(msg)

class MockExporter:
    """Mock exporter that does nothing."""
    def export(self, data):
        pass

def create_mock_extractor(extractor_class, filepath):
    """Create an extractor instance with mocked dependencies."""
    log = MockLogger()
    
    # Mock the exporters to avoid database connections
    mock_exporters = [MockExporter()]
    
    # Create the extractor with mocked dependencies
    extractor = extractor_class(
        filepath=filepath,
        log=log,
        exporters=mock_exporters,
        index_prefix="test",
        elastic_index="test_macho",
        known_benign=False,
        known_malicious=False
    )
    
    return extractor

def test_extractor(extractor_class, filepath, extractor_name):
    """Test a specific extractor."""
    log = setup_logging()
    log.info(f"Testing {extractor_name}...")
    
    try:
        # Create the extractor with mocked dependencies
        extractor = create_mock_extractor(extractor_class, filepath)
        
        if not extractor.macho:
            log.error(f"{extractor_name}: No MachO object created")
            return False

        # Test the actual extract method
        result = extractor.extract()
        
        if result:
            log.info(f"{extractor_name}: Successfully extracted data")
            print(f"\n{'='*60}")
            print(f"=== {extractor_name.upper()} RESULTS ===")
            print(f"{'='*60}")
            
            if isinstance(result, list):
                print(f"📊 Extracted {len(result)} items")
                print()
                for i, item in enumerate(result):
                    print(f"📦 Item {i+1}:")
                    print(f"   {'─'*40}")
                    # Handle dataclass objects in lists
                    if hasattr(item, '__dataclass_fields__'):
                        from dataclasses import asdict
                        item_dict = asdict(item)
                        for key, value in item_dict.items():
                            if isinstance(value, (list, dict)):
                                if isinstance(value, list):
                                    print(f"   🔹 {key}: List with {len(value)} items")
                                    print(f"      {value}")
                                elif isinstance(value, dict):
                                    print(f"   🔹 {key}: Dict with {len(value)} keys")
                                    for k, v in value.items():
                                        print(f"      {k}: {v}")
                            else:
                                print(f"   🔹 {key}: {value}")
                    else:
                        # Regular dict
                        for key, value in item.items():
                            if isinstance(value, (list, dict)):
                                if isinstance(value, list):
                                    print(f"   🔹 {key}: List with {len(value)} items")
                                    print(f"      {value}")
                                elif isinstance(value, dict):
                                    print(f"   🔹 {key}: Dict with {len(value)} keys")
                                    for k, v in value.items():
                                        print(f"      {k}: {v}")
                            else:
                                print(f"   🔹 {key}: {value}")
                    print()
            else:
                print("📊 Extracted data:")
                print()
                # Handle dataclass objects
                if hasattr(result, '__dataclass_fields__'):
                    # It's a dataclass, use dataclasses.asdict
                    from dataclasses import asdict
                    result_dict = asdict(result)
                    for key, value in result_dict.items():
                        if isinstance(value, (list, dict)):
                            if isinstance(value, list):
                                print(f"🔹 {key}: List with {len(value)} items")
                                print(f"   {value}")
                            elif isinstance(value, dict):
                                print(f"🔹 {key}: Dict with {len(value)} keys")
                                for k, v in value.items():
                                    print(f"   {k}: {v}")
                        else:
                            print(f"🔹 {key}: {value}")
                        print()
                else:
                    # It's a regular dict
                    for key, value in result.items():
                        if isinstance(value, (list, dict)):
                            if isinstance(value, list):
                                print(f"🔹 {key}: List with {len(value)} items")
                                print(f"   {value}")
                            elif isinstance(value, dict):
                                print(f"🔹 {key}: Dict with {len(value)} keys")
                                for k, v in value.items():
                                    print(f"   {k}: {v}")
                        else:
                            print(f"🔹 {key}: {value}")
                        print()
        else:
            log.warning(f"{extractor_name}: No data extracted")
            print(f"\n❌ {extractor_name}: No data extracted")
        
        return True
        
    except Exception as e:
        log.error(f"{extractor_name}: Error during extraction: {e}")
        import traceback
        traceback.print_exc()
        return False

def main():
    """Main function."""
    if len(sys.argv) < 2:
        print("Usage: python test_macho_extractors_local.py <macho_file> [extractor_name]")
        print("\nAvailable extractors:")
        print("  features    - Basic MachO header and metadata")
        print("  segments    - Segment information and analysis")
        print("  imports     - Imported functions and libraries")
        print("  exports     - Exported symbols")
        print("  dylibs      - Dynamic library dependencies")
        print("  signature   - Code signing information")
        print("  universal   - FAT/Universal binary information")
        print("  all         - Test all extractors")
        sys.exit(1)
    
    filepath = sys.argv[1]
    extractor_name = sys.argv[2] if len(sys.argv) > 2 else "all"
    
    if not os.path.exists(filepath):
        print(f"File not found: {filepath}")
        sys.exit(1)
    
    # Define extractors
    extractors = {
        'features': (MachOFeaturesExtractor, "MachO Features"),
        'segments': (MachOSegmentExtractor, "MachO Segments"),
        'imports': (MachOImportExtractor, "MachO Imports"),
        'exports': (MachOExportExtractor, "MachO Exports"),
        'dylibs': (MachODylibExtractor, "MachO Dylibs"),
        'signature': (MachOSignatureExtractor, "MachO Code Signature"),
        'universal': (MachOUniversalExtractor, "MachO Universal/FAT"),
    }
    
    if extractor_name == "all":
        print(f"Testing all extractors with file: {filepath}")
        success_count = 0
        for name, (extractor_class, display_name) in extractors.items():
            if test_extractor(extractor_class, filepath, display_name):
                success_count += 1
            print("-" * 50)
        
        print(f"\n✅ {success_count}/{len(extractors)} extractors completed successfully")
        
    elif extractor_name in extractors:
        extractor_class, display_name = extractors[extractor_name]
        success = test_extractor(extractor_class, filepath, display_name)
        
        if success:
            print(f"\n✅ {display_name} testing completed successfully")
        else:
            print(f"\n❌ {display_name} testing failed")
            sys.exit(1)
    else:
        print(f"Unknown extractor: {extractor_name}")
        print("Available extractors:", ", ".join(extractors.keys()) + ", all")
        sys.exit(1)

if __name__ == "__main__":
    main()