Spaces:
Sleeping
Sleeping
File size: 20,968 Bytes
6a00d1e 0add29f 6a00d1e 0add29f 6a00d1e |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 |
"""
Linux administration tools for Gradio interface.
Standard Python functions (no @gr.tool decorators).
"""
import subprocess
import os
import pwd
import grp
import shlex
from typing import List, Optional
from shared.config import config
import logging
logger = logging.getLogger(__name__)
# Sensitive Tools (require Socratic dialogue)
def add_user(username: str, groups: Optional[List[str]] = None,
create_home: bool = True, shell: str = "/bin/bash") -> dict:
"""
Add a new system user with proper validation.
This is a SENSITIVE operation requiring careful consideration.
"""
# Validate username
if not _validate_username(username):
return {
"success": False,
"error": "Invalid username format",
"details": "Username must be lowercase, alphanumeric, and start with letter",
"tool_type": "sensitive_operation"
}
# Check if user already exists
try:
pwd.getpwnam(username)
return {
"success": False,
"error": f"User '{username}' already exists",
"tool_type": "sensitive_operation"
}
except KeyError:
pass # User doesn't exist, which is what we want
# Build useradd command
cmd = ["useradd"]
if create_home:
cmd.append("-m")
if shell:
cmd.extend(["-s", shell])
if groups:
# Validate groups exist
valid_groups = []
for group in groups:
try:
grp.getgrnam(group)
valid_groups.append(group)
except KeyError:
logger.warning(f"Group '{group}' does not exist, skipping")
if valid_groups:
cmd.extend(["-G", ",".join(valid_groups)])
cmd.append(username)
try:
logger.info(f"Adding user: {' '.join(cmd)}")
result = subprocess.run(
cmd,
capture_output=True,
text=True,
timeout=config.security.command_timeout,
check=False
)
if result.returncode == 0:
return {
"success": True,
"message": f"User '{username}' created successfully",
"details": {
"username": username,
"groups": groups or [],
"home_created": create_home,
"shell": shell
},
"tool_type": "sensitive_operation"
}
else:
return {
"success": False,
"error": f"Failed to create user: {result.stderr}",
"exit_code": result.returncode,
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error creating user: {str(e)}",
"tool_type": "sensitive_operation"
}
def create_file(filepath: str, content: str, permissions: str = "644",
owner: Optional[str] = None) -> dict:
"""
Create a new file with specified content and permissions.
This is a SENSITIVE operation that modifies the filesystem.
"""
# Validate file path
if not _validate_filepath(filepath):
return {
"success": False,
"error": "Invalid file path - must be absolute and safe",
"tool_type": "sensitive_operation"
}
# Check if file already exists
if os.path.exists(filepath):
return {
"success": False,
"error": f"File '{filepath}' already exists",
"tool_type": "sensitive_operation"
}
try:
# Create directory if needed
directory = os.path.dirname(filepath)
if directory and not os.path.exists(directory):
os.makedirs(directory, mode=0o755)
# Write file
with open(filepath, 'w') as f:
f.write(content)
# Set permissions
os.chmod(filepath, int(permissions, 8))
# Change owner if specified
if owner:
try:
user_info = pwd.getpwnam(owner)
os.chown(filepath, user_info.pw_uid, user_info.pw_gid)
except KeyError:
logger.warning(f"User '{owner}' not found, keeping current owner")
return {
"success": True,
"message": f"File '{filepath}' created successfully",
"details": {
"path": filepath,
"permissions": permissions,
"owner": owner,
"size": len(content)
},
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error creating file: {str(e)}",
"tool_type": "sensitive_operation"
}
def change_permission(path: str, permissions: str, recursive: bool = False,
owner: Optional[str] = None) -> dict:
"""
Change file or directory permissions.
This is a SENSITIVE operation that affects system security.
"""
if not os.path.exists(path):
return {
"success": False,
"error": f"Path '{path}' does not exist",
"tool_type": "sensitive_operation"
}
try:
# Change permissions
perm_octal = int(permissions, 8)
if recursive and os.path.isdir(path):
# Recursively change permissions
for root, dirs, files in os.walk(path):
os.chmod(root, perm_octal)
for file in files:
os.chmod(os.path.join(root, file), perm_octal)
else:
os.chmod(path, perm_octal)
# Change owner if specified
if owner:
try:
user_info = pwd.getpwnam(owner)
if recursive and os.path.isdir(path):
for root, dirs, files in os.walk(path):
os.chown(root, user_info.pw_uid, user_info.pw_gid)
for file in files:
os.chown(os.path.join(root, file), user_info.pw_uid, user_info.pw_gid)
else:
os.chown(path, user_info.pw_uid, user_info.pw_gid)
except KeyError:
return {
"success": False,
"error": f"User '{owner}' not found",
"tool_type": "sensitive_operation"
}
return {
"success": True,
"message": f"Permissions changed for '{path}'",
"details": {
"path": path,
"permissions": permissions,
"recursive": recursive,
"owner": owner
},
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error changing permissions: {str(e)}",
"tool_type": "sensitive_operation"
}
def run_safe_command(command: str, args: Optional[List[str]] = None,
working_directory: Optional[str] = None) -> dict:
"""
Execute safe, whitelisted system commands for information gathering.
These are READ-ONLY or low-risk operations.
"""
if command not in config.security.safe_commands:
return {
"success": False,
"error": f"Command '{command}' not in whitelist",
"whitelist": config.security.safe_commands,
"tool_type": "safe_command"
}
# Build command
cmd_parts = [command]
if args:
# Validate and sanitize arguments
sanitized_args = [shlex.quote(arg) for arg in args if arg]
cmd_parts.extend(sanitized_args)
# Set working directory
if not working_directory:
working_directory = "/home"
try:
logger.info(f"Executing safe command: {' '.join(cmd_parts)} in {working_directory}")
result = subprocess.run(
cmd_parts,
cwd=working_directory,
capture_output=True,
text=True,
timeout=config.security.command_timeout,
check=False # Don't raise exception on non-zero exit
)
return {
"success": result.returncode == 0,
"output": result.stdout,
"error": result.stderr,
"exit_code": result.returncode,
"command": ' '.join(cmd_parts),
"tool_type": "safe_command"
}
except subprocess.TimeoutExpired:
return {
"success": False,
"error": f"Command timed out after {config.security.command_timeout} seconds",
"exit_code": -1,
"tool_type": "safe_command"
}
except Exception as e:
return {
"success": False,
"error": f"Execution error: {str(e)}",
"exit_code": -1,
"tool_type": "safe_command"
}
# Helper functions
def _validate_username(username: str) -> bool:
"""Validate username format"""
if not username or not isinstance(username, str):
return False
if len(username) > 32: # Typical Linux limit
return False
if not username[0].islower() or not username[0].isalpha():
return False
return all(c.islower() or c.isdigit() or c in '_-' for c in username)
def _validate_filepath(filepath: str) -> bool:
"""Basic file path validation"""
if not filepath or not isinstance(filepath, str):
return False
if not os.path.isabs(filepath):
return False
# Prevent path traversal
if '..' in filepath:
return False
# Prevent access to sensitive system files
forbidden_paths = ['/etc/passwd', '/etc/shadow', '/etc/sudoers']
if filepath in forbidden_paths:
return False
return True
"""
Add a new system user with proper validation.
This is a SENSITIVE operation requiring careful consideration.
Args:
username: Username (lowercase, alphanumeric, starts with letter)
groups: Additional groups for the user (optional)
create_home: Create home directory for user
shell: Default shell for user
Returns:
Dictionary with success status and details
"""
# Validate username
if not _validate_username(username):
return {
"success": False,
"error": "Invalid username format",
"details": "Username must be lowercase, alphanumeric, and start with letter",
"tool_type": "sensitive_operation"
}
# Check if user already exists
try:
pwd.getpwnam(username)
return {
"success": False,
"error": f"User '{username}' already exists",
"tool_type": "sensitive_operation"
}
except KeyError:
pass # User doesn't exist, which is what we want
# Build useradd command
cmd = ["useradd"]
if create_home:
cmd.append("-m")
if shell:
cmd.extend(["-s", shell])
if groups:
# Validate groups exist
valid_groups = []
for group in groups:
try:
grp.getgrnam(group)
valid_groups.append(group)
except KeyError:
logger.warning(f"Group '{group}' does not exist, skipping")
if valid_groups:
cmd.extend(["-G", ",".join(valid_groups)])
cmd.append(username)
try:
logger.info(f"Adding user: {' '.join(cmd)}")
result = subprocess.run(
cmd,
capture_output=True,
text=True,
timeout=config.security.command_timeout,
check=False
)
if result.returncode == 0:
return {
"success": True,
"message": f"User '{username}' created successfully",
"details": {
"username": username,
"groups": groups or [],
"home_created": create_home,
"shell": shell
},
"tool_type": "sensitive_operation"
}
else:
return {
"success": False,
"error": f"Failed to create user: {result.stderr}",
"exit_code": result.returncode,
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error creating user: {str(e)}",
"tool_type": "sensitive_operation"
}
@gr.tool
def create_file(filepath: str, content: str, permissions: str = "644",
owner: Optional[str] = None) -> dict:
"""
Create a new file with specified content and permissions.
This is a SENSITIVE operation that modifies the filesystem.
Args:
filepath: Full path where file should be created
content: Content to write to the file
permissions: File permissions in octal notation (e.g., 644, 755)
owner: File owner (optional, defaults to current user)
Returns:
Dictionary with success status and details
"""
# Validate file path
if not _validate_filepath(filepath):
return {
"success": False,
"error": "Invalid file path - must be absolute and safe",
"tool_type": "sensitive_operation"
}
# Check if file already exists
if os.path.exists(filepath):
return {
"success": False,
"error": f"File '{filepath}' already exists",
"tool_type": "sensitive_operation"
}
try:
# Create directory if needed
directory = os.path.dirname(filepath)
if directory and not os.path.exists(directory):
os.makedirs(directory, mode=0o755)
# Write file
with open(filepath, 'w') as f:
f.write(content)
# Set permissions
os.chmod(filepath, int(permissions, 8))
# Change owner if specified
if owner:
try:
user_info = pwd.getpwnam(owner)
os.chown(filepath, user_info.pw_uid, user_info.pw_gid)
except KeyError:
logger.warning(f"User '{owner}' not found, keeping current owner")
return {
"success": True,
"message": f"File '{filepath}' created successfully",
"details": {
"path": filepath,
"permissions": permissions,
"owner": owner,
"size": len(content)
},
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error creating file: {str(e)}",
"tool_type": "sensitive_operation"
}
@gr.tool
def change_permission(path: str, permissions: str, recursive: bool = False,
owner: Optional[str] = None) -> dict:
"""
Change file or directory permissions.
This is a SENSITIVE operation that affects system security.
Args:
path: Path to file or directory
permissions: New permissions in octal notation (e.g., 755, 644)
recursive: Apply permissions recursively (for directories)
owner: Change owner as well (optional)
Returns:
Dictionary with success status and details
"""
if not os.path.exists(path):
return {
"success": False,
"error": f"Path '{path}' does not exist",
"tool_type": "sensitive_operation"
}
try:
# Change permissions
perm_octal = int(permissions, 8)
if recursive and os.path.isdir(path):
# Recursively change permissions
for root, dirs, files in os.walk(path):
os.chmod(root, perm_octal)
for file in files:
os.chmod(os.path.join(root, file), perm_octal)
else:
os.chmod(path, perm_octal)
# Change owner if specified
if owner:
try:
user_info = pwd.getpwnam(owner)
if recursive and os.path.isdir(path):
for root, dirs, files in os.walk(path):
os.chown(root, user_info.pw_uid, user_info.pw_gid)
for file in files:
os.chown(os.path.join(root, file), user_info.pw_uid, user_info.pw_gid)
else:
os.chown(path, user_info.pw_uid, user_info.pw_gid)
except KeyError:
return {
"success": False,
"error": f"User '{owner}' not found",
"tool_type": "sensitive_operation"
}
return {
"success": True,
"message": f"Permissions changed for '{path}'",
"details": {
"path": path,
"permissions": permissions,
"recursive": recursive,
"owner": owner
},
"tool_type": "sensitive_operation"
}
except Exception as e:
return {
"success": False,
"error": f"Error changing permissions: {str(e)}",
"tool_type": "sensitive_operation"
}
# Safe Command Tool (direct execution)
@gr.tool
def run_safe_command(command: str, args: Optional[List[str]] = None,
working_directory: Optional[str] = None) -> dict:
"""
Execute safe, whitelisted system commands for information gathering.
These are READ-ONLY or low-risk operations.
Args:
command: Command to execute (must be from approved whitelist)
args: Command arguments (optional)
working_directory: Directory to run command in (optional)
Returns:
Dictionary with command output and status
"""
if command not in config.security.safe_commands:
return {
"success": False,
"error": f"Command '{command}' not in whitelist",
"whitelist": config.security.safe_commands,
"tool_type": "safe_command"
}
# Build command
cmd_parts = [command]
if args:
# Validate and sanitize arguments
sanitized_args = [shlex.quote(arg) for arg in args if arg]
cmd_parts.extend(sanitized_args)
# Set working directory
if not working_directory:
working_directory = "/home"
try:
logger.info(f"Executing safe command: {' '.join(cmd_parts)} in {working_directory}")
result = subprocess.run(
cmd_parts,
cwd=working_directory,
capture_output=True,
text=True,
timeout=config.security.command_timeout,
check=False # Don't raise exception on non-zero exit
)
return {
"success": result.returncode == 0,
"output": result.stdout,
"error": result.stderr,
"exit_code": result.returncode,
"command": ' '.join(cmd_parts),
"tool_type": "safe_command"
}
except subprocess.TimeoutExpired:
return {
"success": False,
"error": f"Command timed out after {config.security.command_timeout} seconds",
"exit_code": -1,
"tool_type": "safe_command"
}
except Exception as e:
return {
"success": False,
"error": f"Execution error: {str(e)}",
"exit_code": -1,
"tool_type": "safe_command"
}
# Helper functions
def _validate_username(username: str) -> bool:
"""Validate username format"""
if not username or not isinstance(username, str):
return False
if len(username) > 32: # Typical Linux limit
return False
if not username[0].islower() or not username[0].isalpha():
return False
return all(c.islower() or c.isdigit() or c in '_-' for c in username)
def _validate_filepath(filepath: str) -> bool:
"""Basic file path validation"""
if not filepath or not isinstance(filepath, str):
return False
if not os.path.isabs(filepath):
return False
# Prevent path traversal
if '..' in filepath:
return False
# Prevent access to sensitive system files
forbidden_paths = ['/etc/passwd', '/etc/shadow', '/etc/sudoers']
if filepath in forbidden_paths:
return False
return True |