security: SSRF hardening, log injection sanitization, and allow_local_smtp

Add SSRF host validation to maintenance.py send_nightly_email and
scheduler.py send_zombie_alert_email using validate_external_url().
New allow_local_smtp config key permits private-IP SMTP for local
relay setups.

Add sanitize_name() to security_utils and apply it to all log calls
in message_handler, repeater_manager, path_command, solarforecast_command,
command_manager, and discord_bridge_service to prevent log injection.

Move nightly email logic from duplicate scheduler._send_nightly_email()
into the canonical maintenance.py implementation, removing the duplicate.
Update tests to call maintenance.send_nightly_email() directly.

Add validate_external_url allow_private parameter with support for
loopback, RFC1918, CGN, and link-local address ranges.
This commit is contained in:
Stacy Olivas
2026-04-09 23:45:43 -07:00
committed by agessaman
parent c7fa0ba3d2
commit 54aeb28bf0
18 changed files with 707 additions and 80 deletions
+18
View File
@@ -202,6 +202,24 @@ radio_probe_fail_threshold = 3
# true: send alert email in addition to logging
radio_zombie_alert_enabled = false
<<<<<<< HEAD
=======
# SMTP security note: by default the bot blocks SMTP hosts that resolve to
# any private, loopback, link-local, or reserved address to prevent SSRF.
# Blocked ranges (per RFC):
# 10.0.0.0/8 RFC 1918 — private
# 172.16.0.0/12 RFC 1918 — private
# 192.168.0.0/16 RFC 1918 — private
# 127.0.0.0/8 RFC 1122 — loopback
# 169.254.0.0/16 RFC 3927 — link-local
# 100.64.0.0/10 RFC 6598 — shared address space (CGN)
# ::1/128 RFC 4291 — IPv6 loopback
# fc00::/7 RFC 4193 — IPv6 unique local (ULA)
# fe80::/10 RFC 4291 — IPv6 link-local
# If you run a local SMTP relay (e.g. Postfix on localhost), enable
# "Allow local SMTP host" in the web viewer → Settings → Notifications.
>>>>>>> 38d040a (security: SSRF hardening, log injection sanitization, and allow_local_smtp)
# Alert email recipients for zombie detection (comma-separated addresses).
# If empty, falls back to the nightly maintenance email recipients.
# Set this to a separate on-call address if needed.
+11 -1
View File
@@ -22,6 +22,7 @@ from .config_validation import (
)
from .models import CHANNEL_REGIONAL_FLOOD_SCOPE_BODY_OVERHEAD, MeshMessage
from .plugin_loader import PluginLoader
from .security_utils import sanitize_name, validate_safe_path
from .utils import check_internet_connectivity_async, decode_escape_sequences, format_keyword_response_with_placeholders
@@ -857,6 +858,15 @@ class CommandManager:
self.logger.warning(f"RandomLine matched '{key}' but missing config file.{key}")
return None
try:
validated_path = validate_safe_path(file_path, allow_absolute=True)
except ValueError:
validated_path = None
if validated_path is None:
self.logger.warning(f"RandomLine: unsafe or restricted path rejected for '{key}': {file_path}")
return None
file_path = str(validated_path)
# Read usable lines
try:
with open(file_path, encoding="utf-8") as f:
@@ -952,7 +962,7 @@ class CommandManager:
# Use the contact name for logging
contact_name = contact.get('name', contact.get('adv_name', recipient_id))
self.logger.info(f"Sending DM to {contact_name}: {content}")
self.logger.info("Sending DM to %s", sanitize_name(contact_name))
# Record transmission for repeat tracking (don't let this block sending)
try:
+8 -16
View File
@@ -6,9 +6,9 @@ Handles RSS and API feed subscription management
import json
from typing import Optional
from urllib.parse import urlparse
from ..models import MeshMessage
from ..security_utils import sanitize_input, sanitize_name, validate_external_url
from .base_command import BaseCommand
@@ -103,13 +103,13 @@ feed status 1"""
return await self.send_response(message, "Feed type must be 'rss' or 'api'")
feed_url = args[1]
channel_name = args[2]
feed_name = args[3] if len(args) > 3 else None
channel_name = sanitize_name(args[2], max_length=64)
feed_name = sanitize_input(args[3], max_length=100) if len(args) > 3 else None
api_config = args[4] if len(args) > 4 and feed_type == 'api' else None
# Validate URL
if not self._validate_url(feed_url):
return await self.send_response(message, "Invalid URL format")
# Validate URL — full SSRF protection (IP range + DNS check)
if not validate_external_url(feed_url):
return await self.send_response(message, "Invalid or unsafe URL")
# Validate channel exists
channel_num = self.bot.channel_manager.get_channel_number(channel_name)
@@ -242,8 +242,8 @@ feed status 1"""
feed_url = args[0]
if not self._validate_url(feed_url):
return await self.send_response(message, "Invalid URL format")
if not validate_external_url(feed_url):
return await self.send_response(message, "Invalid or unsafe URL")
# Test would require feed_manager to be available
# For now, just validate URL
@@ -295,14 +295,6 @@ feed status 1"""
self.logger.error(f"Error updating feed: {e}")
return await self.send_response(message, f"Error: {str(e)}")
def _validate_url(self, url: str) -> bool:
"""Validate URL format"""
try:
result = urlparse(url)
return all([result.scheme in ['http', 'https'], result.netloc])
except Exception:
return False
def _create_subscription(self, feed_type: str, feed_url: str, channel_name: str,
feed_name: Optional[str] = None, api_config: Optional[dict] = None) -> int:
"""Create a new feed subscription"""
+17 -16
View File
@@ -11,6 +11,7 @@ import time
from typing import Any, Callable, Optional
from ..models import MeshMessage
from ..security_utils import sanitize_name
from ..utils import calculate_distance, parse_path_string
from .base_command import BaseCommand
@@ -769,7 +770,7 @@ class PathCommand(BaseCommand):
# Apply star bias multiplier if repeater is starred
if repeater.get('is_starred', False):
combined_score *= self.star_bias_multiplier
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {repeater.get('name', 'unknown')}")
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {sanitize_name(repeater.get('name', 'unknown'))}")
# SNR bonus: If repeater has SNR data, it's a zero-hop repeater (direct neighbor)
# This is strong evidence it's close and should be preferred
@@ -778,7 +779,7 @@ class PathCommand(BaseCommand):
# Add bonus proportional to zero-hop bonus (20% of combined score)
snr_bonus = combined_score * 0.2
combined_score += snr_bonus
self.logger.debug(f"SNR bonus for {repeater.get('name', 'unknown')}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
self.logger.debug(f"SNR bonus for {sanitize_name(repeater.get('name', 'unknown'))}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
combined_scores.append((combined_score, distance, repeater))
@@ -1165,7 +1166,7 @@ class PathCommand(BaseCommand):
# Apply star bias multiplier if repeater is starred
if repeater.get('is_starred', False):
combined_score *= self.star_bias_multiplier
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {repeater.get('name', 'unknown')}")
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {sanitize_name(repeater.get('name', 'unknown'))}")
# SNR bonus: If repeater has SNR data, it's a zero-hop repeater (direct neighbor)
# This is strong evidence it's close and should be preferred
@@ -1174,7 +1175,7 @@ class PathCommand(BaseCommand):
# Add bonus proportional to zero-hop bonus (20% of combined score)
snr_bonus = combined_score * 0.2
combined_score += snr_bonus
self.logger.debug(f"SNR bonus for {repeater.get('name', 'unknown')}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
self.logger.debug(f"SNR bonus for {sanitize_name(repeater.get('name', 'unknown'))}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
if combined_score > best_combined_score:
best_combined_score = combined_score
@@ -1248,7 +1249,7 @@ class PathCommand(BaseCommand):
# Apply star bias multiplier if repeater is starred
if repeater.get('is_starred', False):
combined_score *= self.star_bias_multiplier
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {repeater.get('name', 'unknown')}")
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {sanitize_name(repeater.get('name', 'unknown'))}")
# SNR bonus: If repeater has SNR data, it's a zero-hop repeater (direct neighbor)
# This is strong evidence it's close and should be preferred
@@ -1257,7 +1258,7 @@ class PathCommand(BaseCommand):
# Add bonus proportional to zero-hop bonus (20% of combined score)
snr_bonus = combined_score * 0.2
combined_score += snr_bonus
self.logger.debug(f"SNR bonus for {repeater.get('name', 'unknown')}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
self.logger.debug(f"SNR bonus for {sanitize_name(repeater.get('name', 'unknown'))}: +{snr_bonus:.3f} (has SNR data, confirmed zero-hop)")
all_scores.append((repeater.get('name', 'unknown'), distance, recency_score, proximity_score, combined_score))
@@ -1358,7 +1359,7 @@ class PathCommand(BaseCommand):
stored_to_key = prev_to_candidate_edge.get('to_public_key', '').lower() if prev_to_candidate_edge.get('to_public_key') else None
if stored_to_key and stored_to_key == candidate_public_key:
stored_key_bonus = max(stored_key_bonus, 0.4) # Strong bonus for matching stored key
self.logger.debug(f"Found stored public key match for {repeater.get('name', 'unknown')} in edge {prev_norm}->{candidate_norm}")
self.logger.debug(f"Found stored public key match for {sanitize_name(repeater.get('name', 'unknown'))} in edge {prev_norm}->{candidate_norm}")
# Check edge from candidate to next node
if next_norm:
@@ -1367,7 +1368,7 @@ class PathCommand(BaseCommand):
stored_from_key = candidate_to_next_edge.get('from_public_key', '').lower() if candidate_to_next_edge.get('from_public_key') else None
if stored_from_key and stored_from_key == candidate_public_key:
stored_key_bonus = max(stored_key_bonus, 0.4) # Strong bonus for matching stored key
self.logger.debug(f"Found stored public key match for {repeater.get('name', 'unknown')} in edge {candidate_norm}->{next_norm}")
self.logger.debug(f"Found stored public key match for {sanitize_name(repeater.get('name', 'unknown'))} in edge {candidate_norm}->{next_norm}")
# Zero-hop bonus: If this repeater has been heard directly by the bot (zero-hop advert),
# it's strong evidence it's close and should be preferred, even for intermediate hops.
@@ -1378,7 +1379,7 @@ class PathCommand(BaseCommand):
if hop_count is not None and hop_count == 0 and graph_score > 0:
# This repeater has been heard directly - strong evidence it's close to bot
zero_hop_bonus = self.graph_zero_hop_bonus
self.logger.debug(f"Zero-hop bonus for {repeater.get('name', 'unknown')}: {zero_hop_bonus:.2%} (heard directly by bot)")
self.logger.debug(f"Zero-hop bonus for {sanitize_name(repeater.get('name', 'unknown'))}: {zero_hop_bonus:.2%} (heard directly by bot)")
# SNR bonus: If this repeater has SNR data, it's a zero-hop repeater (direct neighbor)
# This is even stronger evidence than just hop_count == 0, as it means we have actual signal quality data.
@@ -1389,7 +1390,7 @@ class PathCommand(BaseCommand):
# SNR presence indicates zero-hop connection with signal quality data
# Use same bonus as zero-hop, but this is more definitive
snr_bonus = self.graph_zero_hop_bonus * 1.2 # 20% stronger than zero-hop bonus alone
self.logger.debug(f"SNR bonus for {repeater.get('name', 'unknown')}: {snr_bonus:.2%} (has SNR data, confirmed zero-hop)")
self.logger.debug(f"SNR bonus for {sanitize_name(repeater.get('name', 'unknown'))}: {snr_bonus:.2%} (has SNR data, confirmed zero-hop)")
# Add stored key bonus, zero-hop bonus, and SNR bonus to graph score
graph_score_with_bonus = min(1.0, graph_score + stored_key_bonus + zero_hop_bonus + snr_bonus)
@@ -1454,7 +1455,7 @@ class PathCommand(BaseCommand):
path_validation_bonus = max(path_validation_bonus, segment_bonus + obs_bonus)
# Cap at max bonus
path_validation_bonus = min(self.graph_path_validation_max_bonus, path_validation_bonus)
self.logger.debug(f"Path validation match for {repeater.get('name', 'unknown')}: {common_segments} common segments (obs: {obs_count})")
self.logger.debug(f"Path validation match for {sanitize_name(repeater.get('name', 'unknown'))}: {common_segments} common segments (obs: {obs_count})")
if path_validation_bonus >= self.graph_path_validation_max_bonus * 0.9:
break # Strong match found
except Exception as e:
@@ -1521,7 +1522,7 @@ class PathCommand(BaseCommand):
# Apply penalty: up to penalty_strength reduction
penalty = normalized_excess * self.graph_distance_penalty_strength
candidate_score = candidate_score * (1.0 - penalty)
self.logger.debug(f"Applied distance penalty to {repeater.get('name', 'unknown')}: {max_distance:.1f}km hop (penalty: {penalty:.2%}, score: {candidate_score:.3f})")
self.logger.debug(f"Applied distance penalty to {sanitize_name(repeater.get('name', 'unknown'))}: {max_distance:.1f}km hop (penalty: {penalty:.2%}, score: {candidate_score:.3f})")
elif max_distance > 0:
# Even if under threshold, very long hops should get a small penalty
# This helps prefer shorter hops when graph evidence is similar
@@ -1549,7 +1550,7 @@ class PathCommand(BaseCommand):
# Apply max distance threshold if configured
if self.graph_final_hop_max_distance > 0 and distance > self.graph_final_hop_max_distance:
# Beyond max distance - skip proximity bonus
self.logger.debug(f"Final hop candidate {repeater.get('name', 'unknown')} is {distance:.1f}km from bot, beyond max distance {self.graph_final_hop_max_distance:.1f}km")
self.logger.debug(f"Final hop candidate {sanitize_name(repeater.get('name', 'unknown'))} is {distance:.1f}km from bot, beyond max distance {self.graph_final_hop_max_distance:.1f}km")
else:
# Normalize distance to 0-1 score (inverse: closer = higher score)
# Use configurable normalization distance (default 500km for more aggressive scoring)
@@ -1569,14 +1570,14 @@ class PathCommand(BaseCommand):
# Combine with graph score using effective weight
candidate_score = candidate_score * (1.0 - effective_weight) + proximity_score * effective_weight
self.logger.debug(f"Final hop proximity for {repeater.get('name', 'unknown')}: distance={distance:.1f}km, proximity_score={proximity_score:.3f}, effective_weight={effective_weight:.3f}, combined_score={candidate_score:.3f}")
self.logger.debug(f"Final hop proximity for {sanitize_name(repeater.get('name', 'unknown'))}: distance={distance:.1f}km, proximity_score={proximity_score:.3f}, effective_weight={effective_weight:.3f}, combined_score={candidate_score:.3f}")
else:
# Repeater without valid location data - apply significant penalty for final hop
# This ensures we prefer repeaters with known locations, especially direct neighbors
# Penalty: reduce score by 50% (repeaters with location data will have proximity bonus, so this creates strong preference)
location_penalty = 0.5
candidate_score = candidate_score * (1.0 - location_penalty)
self.logger.debug(f"Final hop candidate {repeater.get('name', 'unknown')} has no valid location data - applying {location_penalty:.0%} penalty (score: {candidate_score:.3f})")
self.logger.debug(f"Final hop candidate {sanitize_name(repeater.get('name', 'unknown'))} has no valid location data - applying {location_penalty:.0%} penalty (score: {candidate_score:.3f})")
# Apply star bias multiplier if repeater is starred
# Starred repeaters should get significant advantage in graph selection
@@ -1586,7 +1587,7 @@ class PathCommand(BaseCommand):
candidate_score *= self.star_bias_multiplier
# Cap at 1.0 but allow it to exceed temporarily for comparison
# We'll normalize later when converting to confidence
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {repeater.get('name', 'unknown')} in graph selection (score: {candidate_score:.3f})")
self.logger.debug(f"Applied star bias ({self.star_bias_multiplier}x) to {sanitize_name(repeater.get('name', 'unknown'))} in graph selection (score: {candidate_score:.3f})")
if candidate_score > best_score:
best_score = candidate_score
+3 -2
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@@ -13,6 +13,7 @@ from typing import Optional
import requests
from ..models import MeshMessage
from ..security_utils import sanitize_name
from ..utils import (
abbreviate_location,
geocode_city,
@@ -345,7 +346,7 @@ class SolarforecastCommand(BaseCommand):
'''
all_repeaters = self.bot.db_manager.execute_query(all_repeaters_query)
if all_repeaters:
self.logger.debug(f"Sample repeaters in DB: {[r.get('name') for r in all_repeaters[:5]]}")
self.logger.debug(f"Sample repeaters in DB: {[sanitize_name(r.get('name', '')) for r in all_repeaters[:5]]}")
return None, None
except Exception as e:
@@ -610,7 +611,7 @@ class SolarforecastCommand(BaseCommand):
if 'message' in data:
msg = data['message']
if msg.get('type') != 'success':
self.logger.error(f"Forecast.Solar API error: {msg.get('text', 'Unknown')}")
self.logger.error(f"Forecast.Solar API error: {sanitize_name(msg.get('text', 'Unknown'))}")
return None
result = data.get('result', {})
+11 -2
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@@ -22,6 +22,7 @@ import aiohttp
import feedparser
from modules.feed_filter_eval import item_passes_filter_config
from modules.security_utils import sanitize_input, validate_external_url
from modules.url_shortener import _coerce_url_string, shorten_url_sync
@@ -181,6 +182,12 @@ class FeedManager:
feed['channel_name']
try:
# Validate URL for SSRF protection
if not validate_external_url(feed_url):
self.logger.error(f"Feed URL validation failed: {feed_url}")
self._record_feed_error(feed_id, 'security', 'Invalid or unsafe URL')
return
self.logger.debug(f"Polling {feed_type} feed {feed_id}: {feed_url}")
# Rate limit per domain
@@ -927,8 +934,10 @@ class FeedManager:
format_str = feed.get('output_format') or self.default_output_format
# Extract field values (DB/feed may store NULL; .get('k', default) still returns None if key present)
title = item.get('title') or 'Untitled'
body = item.get('description', '') or item.get('body', '')
# Use sanitize_input with max_length=None to only strip control characters without truncating
# Truncation happens later via _apply_shortening when needed
title = sanitize_input(item.get('title') or 'Untitled', max_length=None)
body = sanitize_input(item.get('description', '') or item.get('body', ''), max_length=None)
# Clean HTML from body if present
if body:
body = html.unescape(body)
+10
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@@ -11,6 +11,8 @@ import time
from pathlib import Path
from typing import TYPE_CHECKING, Any, Callable
from .security_utils import validate_external_url
if TYPE_CHECKING:
pass
@@ -359,6 +361,14 @@ class MaintenanceRunner:
)
return
allow_local = self.get_notif('allow_local_smtp').lower() == 'true'
if not validate_external_url(f'http://{smtp_host}', allow_private=allow_local):
self.logger.error(
"Nightly email aborted: SMTP host %r resolves to a private or reserved address",
smtp_host,
)
return
try:
smtp_port = int(self.get_notif('smtp_port') or (465 if smtp_security == 'ssl' else 587))
except ValueError:
+4 -4
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@@ -15,7 +15,7 @@ from typing import Any, Optional
from .enums import AdvertFlags, DeviceRole, PayloadType, PayloadVersion, RouteType
from .graph_trace_helper import update_mesh_graph_from_trace_data
from .models import MeshMessage
from .security_utils import sanitize_input
from .security_utils import sanitize_input, sanitize_name
from .utils import (
calculate_packet_hash,
decode_path_len_byte,
@@ -147,7 +147,7 @@ class MessageHandler:
self.logger.debug(f"Payload keys: {list(payload.keys())}")
self.logger.debug(f"Event metadata: {event.metadata if hasattr(event, 'metadata') else 'None'}")
self.logger.info(f"Received DM from {payload.get('pubkey_prefix', 'unknown')}: {payload.get('text', '')}")
self.logger.info(f"Received DM from {sanitize_name(payload.get('pubkey_prefix', 'unknown'))}: {sanitize_name(payload.get('text', ''))}")
# Extract path information from contacts using pubkey_prefix
path_info = "Unknown"
@@ -510,7 +510,7 @@ class MessageHandler:
parsed_advert = self.parse_advert(payload_bytes)
if parsed_advert:
advert_data = parsed_advert
self.logger.info(f"✅ Parsed ADVERT: {advert_data.get('mode', 'Unknown')} - {advert_data.get('name', 'No name')}")
self.logger.info(f"✅ Parsed ADVERT: {sanitize_name(advert_data.get('mode', 'Unknown'))} - {sanitize_name(advert_data.get('name', 'No name'))}")
except Exception as e:
self.logger.warning(f"Failed to parse ADVERT payload: {e}")
@@ -640,7 +640,7 @@ class MessageHandler:
self.logger.info(f"📡 Tracked {mode}: {name}{location}{hop_info}")
else:
self.logger.warning(f"Failed to track contact advertisement: {advert_data.get('name', 'Unknown')}")
self.logger.warning(f"Failed to track contact advertisement: {sanitize_name(advert_data.get('name', 'Unknown'))}")
except Exception as e:
self.logger.error(f"Error processing advertisement packet: {e}")
+5 -11
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@@ -8,7 +8,7 @@ better-profanity can detect them.
Also checks for hate symbols (e.g. swastika Unicode) that word lists do not catch.
"""
from typing import Any, Optional
from typing import Optional
# Unicode code points for symbols we treat as profanity (e.g. swastika forms).
# These are checked in addition to better-profanity's word list.
@@ -22,23 +22,17 @@ _profanity_initialized = False
_warned_unavailable = False
_unidecode_available = False
profanity: Any = None
try:
from better_profanity import profanity as _better_profanity
profanity = _better_profanity
from better_profanity import profanity
_profanity_available = True
except ImportError:
pass
profanity = None
unidecode: Any = None
try:
from unidecode import unidecode as _unidecode_impl
unidecode = _unidecode_impl
from unidecode import unidecode
_unidecode_available = True
except ImportError:
pass
unidecode = None
def _has_hate_symbols(text: str) -> bool:
+4 -3
View File
@@ -12,6 +12,7 @@ from typing import Any, Optional
from meshcore import EventType
from .security_utils import sanitize_name
from .utils import rate_limited_nominatim_reverse_sync
@@ -1815,7 +1816,7 @@ class RepeaterManager:
# Debug logging for first few contacts to understand structure
if processed_count <= 5:
self.logger.debug(f"Contact {processed_count}: {contact_data.get('name', 'Unknown')} (type: {contact_data.get('type')}, keys: {list(contact_data.keys())})")
self.logger.debug(f"Contact {processed_count}: {sanitize_name(contact_data.get('name', 'Unknown'))} (type: {contact_data.get('type')}, keys: {list(contact_data.keys())})")
if self._is_repeater_device(contact_data):
public_key = contact_data.get('public_key', contact_key)
@@ -2549,7 +2550,7 @@ class RepeaterManager:
'days_stale': (datetime.now() - last_seen_dt).days
})
except Exception as e:
self.logger.debug(f"Error parsing timestamp for contact {contact_data.get('name', 'Unknown')}: {e}")
self.logger.debug(f"Error parsing timestamp for contact {sanitize_name(contact_data.get('name', 'Unknown'))}: {e}")
continue
# Sort by days stale (oldest first)
@@ -2650,7 +2651,7 @@ class RepeaterManager:
await asyncio.sleep(1)
except Exception as e:
self.logger.error(f"Error removing stale contact {contact.get('name', 'Unknown')}: {e}")
self.logger.error(f"Error removing stale contact {sanitize_name(contact.get('name', 'Unknown'))}: {e}")
continue
return removed_count
+124 -2
View File
@@ -901,8 +901,130 @@ class MessageScheduler:
def _format_email_body(self, stats: dict[str, Any], period_start: str, period_end: str) -> str:
return self.maintenance.format_email_body(stats, period_start, period_end)
def _send_nightly_email(self) -> None:
self.maintenance.send_nightly_email()
# ── Zombie radio alert email ─────────────────────────────────────────────
def send_zombie_alert_email(self, fail_count: int, threshold: int, interval: int) -> None:
"""Send an immediate alert email when a zombie radio is detected.
Uses the same SMTP settings as the nightly digest. Recipients are taken
from the ``radio_zombie_alert_email`` config key; if that key is empty the
nightly maintenance recipients are used as a fallback.
This method is intentionally synchronous so it can be run in a thread
executor from the async event loop without blocking it.
"""
import smtplib
import ssl as _ssl
from email.message import EmailMessage
if not self.bot.config.getboolean('Bot', 'radio_zombie_alert_enabled', fallback=True):
return
smtp_host = self._get_notif('smtp_host')
smtp_security = self._get_notif('smtp_security') or 'starttls'
smtp_user = self._get_notif('smtp_user')
smtp_password = self._get_notif('smtp_password')
from_name = self._get_notif('from_name') or 'MeshCore Bot'
from_email = self._get_notif('from_email')
# Alert recipients: dedicated config key, falls back to nightly recipients
alert_email_cfg = self.bot.config.get('Bot', 'radio_zombie_alert_email', fallback='').strip()
if alert_email_cfg:
recipients = [r.strip() for r in alert_email_cfg.split(',') if r.strip()]
else:
recipients = [r.strip() for r in self._get_notif('recipients').split(',') if r.strip()]
if not smtp_host or not from_email or not recipients:
self.bot.logger.warning(
"Zombie alert email enabled but SMTP settings incomplete "
f"(host={smtp_host!r}, from={from_email!r}, recipients={recipients}) "
"— alert email not sent"
)
return
allow_local = self._get_notif('allow_local_smtp').lower() == 'true'
if not validate_external_url(f'http://{smtp_host}', allow_private=allow_local):
self.bot.logger.error(
"Zombie alert email aborted: SMTP host %r resolves to a private or reserved address",
smtp_host,
)
return
try:
smtp_port = int(self._get_notif('smtp_port') or (465 if smtp_security == 'ssl' else 587))
except ValueError:
smtp_port = 587
now_utc = datetime.datetime.utcnow()
connection_type = self.bot.config.get('Connection', 'connection_type', fallback='unknown')
serial_port = self.bot.config.get('Connection', 'serial_port', fallback='n/a')
interval_min = interval // 60
subject = (
f'ALERT: MeshCore Bot — Zombie Radio Detected '
f'[{now_utc.strftime("%Y-%m-%d %H:%M UTC")}]'
)
body = '\n'.join([
'MeshCore Bot — Zombie Radio Alert',
'=' * 44,
f'Time : {now_utc.strftime("%Y-%m-%d %H:%M:%S UTC")}',
'',
'RADIO STATUS',
'' * 30,
f' Connection : {connection_type}',
f' Port / Device : {serial_port}',
f' Failed probes : {fail_count} of {threshold} (threshold)',
f' Probe interval: {interval}s ({interval_min} min)',
'',
'ACTION REQUIRED',
'' * 30,
' The radio firmware is unresponsive (zombie state).',
' A physical POWER CYCLE of the radio is required.',
' Disconnect/reconnect of the serial/BLE transport will NOT fix this.',
'',
' Steps to recover:',
' 1. Power off the radio hardware',
' 2. Wait 10 seconds',
' 3. Power on the radio hardware',
' 4. The bot will reconnect and resume normal operation automatically',
'',
'' * 44,
'Probe monitoring has been suspended to avoid log spam.',
'It will resume automatically after the next successful reconnect.',
])
try:
msg = EmailMessage()
msg['Subject'] = subject
msg['From'] = f'{from_name} <{from_email}>'
msg['To'] = ', '.join(recipients)
msg.set_content(body)
context = _ssl.create_default_context()
_smtp_timeout = 30
if smtp_security == 'ssl':
with smtplib.SMTP_SSL(smtp_host, smtp_port, context=context, timeout=_smtp_timeout) as s:
if smtp_user and smtp_password:
s.login(smtp_user, smtp_password)
s.send_message(msg)
else:
with smtplib.SMTP(smtp_host, smtp_port, timeout=_smtp_timeout) as s:
if smtp_security == 'starttls':
s.ehlo()
s.starttls(context=context)
s.ehlo()
if smtp_user and smtp_password:
s.login(smtp_user, smtp_password)
s.send_message(msg)
self.bot.logger.info(
f"Zombie radio alert email sent to {recipients}"
)
except Exception as e:
self.bot.logger.error(f"Failed to send zombie radio alert email: {e}")
# ── Maintenance helpers ──────────────────────────────────────────────────
def _get_maint(self, key: str) -> str:
return self.maintenance.get_maint(key)
+56 -5
View File
@@ -16,6 +16,9 @@ from urllib.parse import urlparse
logger = logging.getLogger('MeshCoreBot.Security')
# CGN (Carrier-Grade NAT) network 100.64.0.0/10 - RFC 6598
_CGN_NETWORK = ipaddress.ip_network("100.64.0.0/10")
def _is_nix_environment() -> bool:
"""
@@ -42,13 +45,19 @@ def _is_nix_environment() -> bool:
return bool(any(var in os.environ for var in nix_env_vars))
def validate_external_url(url: str, allow_localhost: bool = False, timeout: float = 2.0) -> bool:
def validate_external_url(
url: str,
allow_private: bool = False,
allow_loopback: bool | None = None, # Deprecated: use allow_private=True instead
timeout: float = 2.0
) -> bool:
"""
Validate that URL points to safe external resource (SSRF protection)
Args:
url: URL to validate
allow_localhost: Whether to allow localhost/private IPs (default: False)
allow_private: Whether to allow private/internal IPs (default: False)
allow_loopback: Deprecated alias for allow_private
timeout: DNS resolution timeout in seconds (default: 2.0)
Returns:
@@ -56,6 +65,10 @@ def validate_external_url(url: str, allow_localhost: bool = False, timeout: floa
Raises:
ValueError: If URL is invalid or unsafe
Note:
- allow_loopback=True only permits loopback addresses (127.0.0.1, ::1)
- allow_private=True permits all internal ranges (loopback, RFC1918, CGN, link-local)
"""
try:
parsed = urlparse(url)
@@ -84,17 +97,30 @@ def validate_external_url(url: str, allow_localhost: bool = False, timeout: floa
ip_obj = ipaddress.ip_address(ip)
# If localhost is not allowed, reject private/internal IPs
if not allow_localhost:
# Reject private/internal IPs
# If loopback is not allowed, reject loopback addresses
if allow_loopback is True:
# Only allow loopback, reject everything else
if not ip_obj.is_loopback:
logger.warning(f"URL resolves to non-loopback IP with allow_loopback: {ip}")
return False
elif allow_loopback is False or not allow_private:
# Reject private/internal IPs (RFC1918, CGN, link-local)
if ip_obj.is_private or ip_obj.is_loopback or ip_obj.is_link_local:
logger.warning(f"URL resolves to private/internal IP: {ip}")
return False
# Reject CGN (Carrier-Grade NAT) - RFC 6598
if ip_obj in _CGN_NETWORK:
logger.warning(f"URL resolves to CGN IP: {ip}")
return False
# Reject reserved ranges
if ip_obj.is_reserved or ip_obj.is_multicast:
logger.warning(f"URL resolves to reserved/multicast IP: {ip}")
return False
else:
# allow_private=True: allow all internal ranges
pass
except socket.gaierror as e:
logger.warning(f"Failed to resolve hostname {parsed.hostname}: {e}")
@@ -243,6 +269,31 @@ def sanitize_input(content: str, max_length: Optional[int] = 500, strip_controls
return content.strip()
def sanitize_name(name: object, max_length: int = 64) -> str:
"""
Sanitize a short identifier (node name, channel name, etc.) for safe logging and storage.
Strips all control characters including newlines, carriage returns, tabs,
null bytes, and ANSI escape sequences. Truncates to max_length.
Args:
name: Value to sanitize (coerced to str if not already).
max_length: Maximum character length (default: 64).
Returns:
Sanitized string.
Raises:
ValueError: If max_length is negative.
"""
if max_length < 0:
raise ValueError(f"max_length must be non-negative, got {max_length}")
text = str(name) if not isinstance(name, str) else name
# Strip all control characters (including \n \r \t \x00 and ANSI escapes)
text = re.sub(r'[\x00-\x1f\x7f]|\x1b\[[0-9;]*[A-Za-z]', '', text)
return text[:max_length]
# Valid SQLite journal modes for PRAGMA journal_mode validation
VALID_JOURNAL_MODES = {"DELETE", "TRUNCATE", "PERSIST", "MEMORY", "WAL", "OFF"}
@@ -36,6 +36,7 @@ except ImportError:
import contextlib
from ..profanity_filter import censor, contains_profanity
from ..security_utils import sanitize_name
from .base_service import BaseServicePlugin
@@ -618,7 +619,7 @@ class DiscordBridgeService(BaseServicePlugin):
# Check response status
if response.status == 204:
# Success (Discord webhooks return 204 No Content on success)
self.logger.debug(f"Posted to Discord [{channel_name}]: {payload['content'][:50]}...")
self.logger.debug(f"Posted to Discord [{channel_name}]: {sanitize_name(payload['content'])[:50]}...")
# Monitor rate limit headers
self._check_rate_limit_headers(response.headers, webhook_url, channel_name)
return True
@@ -675,7 +676,7 @@ class DiscordBridgeService(BaseServicePlugin):
# Check response status
if response.status_code == 204:
# Success
self.logger.debug(f"Posted to Discord [{channel_name}]: {payload['content'][:50]}...")
self.logger.debug(f"Posted to Discord [{channel_name}]: {sanitize_name(payload['content'])[:50]}...")
# Monitor rate limit headers
self._check_rate_limit_headers(response.headers, webhook_url, channel_name)
return True
+40 -9
View File
@@ -40,7 +40,11 @@ from flask import (
)
from flask_socketio import SocketIO, disconnect, emit
from modules.security_utils import VALID_JOURNAL_MODES, validate_sql_identifier
from modules.security_utils import (
VALID_JOURNAL_MODES,
validate_external_url,
validate_sql_identifier,
)
from modules.version_info import resolve_runtime_version
@@ -1340,6 +1344,7 @@ class BotDataViewer:
'notif.smtp_user', 'notif.smtp_password',
'notif.from_name', 'notif.from_email',
'notif.recipients', 'notif.nightly_enabled',
'notif.allow_local_smtp',
]
settings = {}
for k in keys:
@@ -1399,6 +1404,14 @@ class BotDataViewer:
if not recipients:
return jsonify({'error': 'No recipients configured'}), 400
# Validate SMTP host for SSRF protection
# allow_local_smtp=true permits private/internal SMTP hosts (e.g., local Postfix)
allow_local_smtp = _get('allow_local_smtp').lower() == 'true'
if not validate_external_url(f'http://{smtp_host}', allow_private=allow_local_smtp):
if allow_local_smtp:
return jsonify({'error': 'Invalid or unsafe SMTP host'}), 400
return jsonify({'error': 'Invalid or unsafe SMTP host (private/internal IP blocked)'}), 400
try:
msg = EmailMessage()
msg['Subject'] = 'MeshCore Bot — test email'
@@ -1741,12 +1754,23 @@ class BotDataViewer:
backup_dir_str = self.db_manager.get_metadata('maint.db_backup_dir') or ''
if not backup_dir_str or not os.path.isdir(backup_dir_str):
return jsonify({'error': 'No valid backup directory configured'}), 400
# Ensure the resolved path is within the backup directory (prevents traversal)
# Validate path is within the configured backup directory
# First check for dangerous system paths, then check if path is within backup dir
backup_dir = Path(backup_dir_str).resolve()
src = Path(db_file).resolve()
# Check for dangerous system paths first (returns 400)
target_str = str(src).lower()
dangerous_prefixes = ['/etc', '/sys', '/proc', '/dev', '/bin', '/sbin', '/boot']
if any(target_str.startswith(prefix) for prefix in dangerous_prefixes):
return jsonify({'error': 'Access to system directory denied'}), 400
# Check if path is within the backup directory (prevents traversal)
try:
src.relative_to(backup_dir)
except ValueError:
# Path is outside backup directory - return 403
return jsonify({'error': 'Restore path must be within the configured backup directory'}), 403
if not src.exists():
@@ -3318,7 +3342,11 @@ class BotDataViewer:
fallback='{emoji} {body|truncate:100} - {date}\n{link|truncate:50}')
# Fetch and format feed items
preview_items = self._preview_feed_items(feed_url, feed_type, output_format, api_config, filter_config, sort_config)
try:
preview_items = self._preview_feed_items(feed_url, feed_type, output_format, api_config, filter_config, sort_config)
except ValueError as e:
# SSRF validation error - return 400
return jsonify({'error': str(e)}), 400
return jsonify({
'success': True,
@@ -3336,14 +3364,13 @@ class BotDataViewer:
if not data or 'url' not in data:
return jsonify({'error': 'URL is required'}), 400
# This would require feed_manager - for now just validate URL
from urllib.parse import urlparse
url = data['url']
result = urlparse(url)
if not all([result.scheme in ['http', 'https'], result.netloc]):
return jsonify({'error': 'Invalid URL format'}), 400
return jsonify({'success': True, 'message': 'URL validated (full test requires feed manager)'})
# Validate URL for SSRF protection
if not validate_external_url(url):
return jsonify({'error': 'Invalid or unsafe URL'}), 400
return jsonify({'success': True, 'message': 'URL validated'})
except Exception as e:
self.logger.error(f"Error testing feed: {e}")
return jsonify({'error': str(e)}), 500
@@ -5933,6 +5960,10 @@ class BotDataViewer:
try:
items = []
# Validate URL for SSRF protection
if not validate_external_url(feed_url):
raise ValueError("Invalid or unsafe feed URL")
if feed_type == 'rss':
# Fetch RSS feed
response = requests.get(feed_url, timeout=30, headers={'User-Agent': 'MeshCoreBot/1.0 FeedManager'})
+3
View File
@@ -282,6 +282,7 @@ class TestLoopExceptionHandler:
mock_loop.default_exception_handler.assert_called_once_with(ctx)
<<<<<<< HEAD
# ---------------------------------------------------------------------------
# _probe_radio_health (PR4 — zombie-connection detection)
# ---------------------------------------------------------------------------
@@ -538,3 +539,5 @@ async def _make_coro_async(value):
def _make_coro(value):
"""Return a coroutine that immediately resolves to *value*."""
return _make_coro_async(value)
=======
>>>>>>> 38d040a (security: SSRF hardening, log injection sanitization, and allow_local_smtp)
+101 -2
View File
@@ -696,9 +696,9 @@ class TestSendNightlyEmailDisabled:
def _get_notif(key):
return {"nightly_enabled": "false"}.get(key, "")
scheduler._get_notif = Mock(side_effect=_get_notif)
scheduler.maintenance.get_notif = Mock(side_effect=_get_notif)
# Should not raise and should not call smtplib
scheduler._send_nightly_email()
scheduler.maintenance.send_nightly_email()
# No assertion needed — if it reaches here without smtplib, it returned early
@@ -1308,6 +1308,7 @@ class TestCollectEmailStats:
assert result.get("contacts_24h") == 10
assert result.get("contacts_new_24h") == 3
<<<<<<< HEAD
# ---------------------------------------------------------------------------
# _send_interval_advert_async (PR2 fix — Event-based error detection)
@@ -1460,3 +1461,101 @@ class TestSendScheduledMessageAsyncTimeout:
assert call_args_list, "logger.error was never called"
logged = str(call_args_list[0])
assert "TimeoutError" in logged
=======
# ---------------------------------------------------------------------------
# SSRF guard — SMTP host validation in email-sending methods
# ---------------------------------------------------------------------------
def _make_smtp_scheduler(notif_overrides: dict) -> "MessageScheduler":
"""Return a scheduler whose maintenance.get_notif returns values from notif_overrides."""
bot = Mock()
bot.logger = Mock()
bot.config = ConfigParser()
bot.config.add_section("Bot")
bot.config.set("Bot", "radio_zombie_alert_enabled", "true")
bot.config.set("Bot", "radio_zombie_alert_email", "")
bot.config.add_section("Connection")
bot.config.set("Connection", "connection_type", "serial")
sched = MessageScheduler(bot)
defaults = {
"nightly_enabled": "true",
"smtp_host": "smtp.example.com",
"smtp_port": "587",
"smtp_security": "starttls",
"smtp_user": "",
"smtp_password": "",
"from_name": "Bot",
"from_email": "bot@example.com",
"recipients": "admin@example.com",
}
defaults.update(notif_overrides)
sched.maintenance.get_notif = Mock(side_effect=lambda k: defaults.get(k, ""))
sched._get_notif = Mock(side_effect=lambda k: defaults.get(k, "")) # zombie alert still uses _get_notif
return sched
class TestNightlyEmailSsrfGuard:
"""send_nightly_email must abort on private IP unless allow_local_smtp=true."""
@pytest.mark.parametrize("bad_host", [
"10.0.0.1", # RFC 1918 10.0.0.0/8
"172.16.0.1", # RFC 1918 172.16.0.0/12
"192.168.1.1", # RFC 1918 192.168.0.0/16
"127.0.0.1", # RFC 1122 127.0.0.0/8 loopback
"169.254.0.1", # RFC 3927 169.254.0.0/16 link-local
"100.64.0.1", # RFC 6598 100.64.0.0/10 shared/CGN
"::1", # RFC 4291 ::1/128 IPv6 loopback
"fd00::1", # RFC 4193 fc00::/7 IPv6 ULA
"fe80::1", # RFC 4291 fe80::/10 IPv6 link-local
])
def test_private_smtp_host_aborts_nightly_email(self, bad_host):
sched = _make_smtp_scheduler({"smtp_host": bad_host})
sched.maintenance.send_nightly_email()
sched.bot.logger.error.assert_called()
logged = str(sched.bot.logger.error.call_args_list)
assert "private" in logged.lower() or "reserved" in logged.lower()
@pytest.mark.parametrize("local_host", ["127.0.0.1", "192.168.1.1"])
def test_allow_local_smtp_bypasses_ssrf_guard(self, local_host):
"""allow_local_smtp=true permits private-IP SMTP (e.g. local Postfix)."""
sched = _make_smtp_scheduler({"smtp_host": local_host, "allow_local_smtp": "true"})
# Should not abort at the SSRF guard — will fail at smtplib (connection refused)
# so error log must NOT contain the SSRF rejection message
with patch("smtplib.SMTP", side_effect=ConnectionRefusedError("no server")):
with patch("smtplib.SMTP_SSL", side_effect=ConnectionRefusedError("no server")):
sched.maintenance.send_nightly_email()
logged = str(sched.bot.logger.error.call_args_list)
assert "private" not in logged.lower() and "reserved" not in logged.lower()
class TestZombieAlertEmailSsrfGuard:
"""send_zombie_alert_email must abort on private IP unless allow_local_smtp=true."""
@pytest.mark.parametrize("bad_host", [
"10.0.0.1", # RFC 1918 10.0.0.0/8
"172.16.0.1", # RFC 1918 172.16.0.0/12
"192.168.1.1", # RFC 1918 192.168.0.0/16
"127.0.0.1", # RFC 1122 127.0.0.0/8 loopback
"169.254.0.1", # RFC 3927 169.254.0.0/16 link-local
"100.64.0.1", # RFC 6598 100.64.0.0/10 shared/CGN
"::1", # RFC 4291 ::1/128 IPv6 loopback
"fd00::1", # RFC 4193 fc00::/7 IPv6 ULA
"fe80::1", # RFC 4291 fe80::/10 IPv6 link-local
])
def test_private_smtp_host_aborts_zombie_alert(self, bad_host):
sched = _make_smtp_scheduler({"smtp_host": bad_host})
sched.send_zombie_alert_email(fail_count=5, threshold=3, interval=60)
sched.bot.logger.error.assert_called()
logged = str(sched.bot.logger.error.call_args_list)
assert "private" in logged.lower() or "reserved" in logged.lower()
def test_allow_local_smtp_bypasses_ssrf_guard_zombie_alert(self):
"""allow_local_smtp=true permits private-IP SMTP for zombie alert."""
sched = _make_smtp_scheduler({"smtp_host": "127.0.0.1", "allow_local_smtp": "true"})
with patch("smtplib.SMTP", side_effect=ConnectionRefusedError("no server")):
with patch("smtplib.SMTP_SSL", side_effect=ConnectionRefusedError("no server")):
sched.send_zombie_alert_email(fail_count=5, threshold=3, interval=60)
logged = str(sched.bot.logger.error.call_args_list)
assert "private" not in logged.lower() and "reserved" not in logged.lower()
>>>>>>> 38d040a (security: SSRF hardening, log injection sanitization, and allow_local_smtp)
+89 -5
View File
@@ -76,14 +76,56 @@ class TestValidateExternalUrl:
assert validate_external_url("https://example.com/") is True
assert validate_external_url("http://example.com/") is True
def test_localhost_rejected_by_default(self):
def test_loopback_rejected_by_default(self):
with patch("socket.gethostbyname", return_value="127.0.0.1"):
assert validate_external_url("http://localhost/") is False
def test_rfc1918_rejected_by_default(self):
for ip in ("10.0.0.1", "172.16.0.1", "192.168.1.1"):
with patch("socket.gethostbyname", return_value=ip):
assert validate_external_url("http://example.com/") is False, f"{ip} should be blocked"
def test_rfc6598_cgn_rejected_by_default(self):
with patch("socket.gethostbyname", return_value="100.64.0.1"):
assert validate_external_url("http://example.com/") is False
def test_localhost_allowed_when_requested(self):
# --- allow_loopback: permits 127.x/::1 only, not RFC 1918 ---
def test_allow_loopback_permits_loopback(self):
with patch("socket.gethostbyname", return_value="127.0.0.1"):
assert validate_external_url("http://localhost/", allow_localhost=True) is True
assert validate_external_url("http://localhost/", allow_loopback=True) is True
def test_allow_loopback_still_blocks_rfc1918(self):
for ip in ("10.0.0.1", "172.16.0.1", "192.168.1.1"):
with patch("socket.gethostbyname", return_value=ip):
assert validate_external_url(
"http://example.com/", allow_loopback=True
) is False, f"allow_loopback must not permit RFC 1918 addr {ip}"
def test_allow_loopback_still_blocks_cgn(self):
with patch("socket.gethostbyname", return_value="100.64.0.1"):
assert validate_external_url("http://example.com/", allow_loopback=True) is False
# --- allow_private: permits all internal ranges including loopback ---
def test_allow_private_permits_loopback(self):
with patch("socket.gethostbyname", return_value="127.0.0.1"):
assert validate_external_url("http://localhost/", allow_private=True) is True
def test_allow_private_permits_rfc1918(self):
for ip in ("10.0.0.1", "172.16.0.1", "192.168.1.1"):
with patch("socket.gethostbyname", return_value=ip):
assert validate_external_url(
"http://example.com/", allow_private=True
) is True, f"allow_private must permit RFC 1918 addr {ip}"
def test_allow_private_permits_cgn(self):
with patch("socket.gethostbyname", return_value="100.64.0.1"):
assert validate_external_url("http://example.com/", allow_private=True) is True
def test_allow_private_permits_link_local(self):
with patch("socket.gethostbyname", return_value="169.254.0.1"):
assert validate_external_url("http://example.com/", allow_private=True) is True
def test_missing_netloc_rejected(self):
assert validate_external_url("http://") is False
@@ -230,9 +272,9 @@ class TestValidateExternalUrlExtra:
with patch("socket.gethostbyname", side_effect=socket.timeout("timeout")):
assert validate_external_url("http://slow.example.com") is False
def test_allow_localhost_permits_loopback(self):
def test_allow_loopback_permits_loopback(self):
with patch("socket.gethostbyname", return_value="127.0.0.1"):
result = validate_external_url("http://localhost", allow_localhost=True)
result = validate_external_url("http://localhost", allow_loopback=True)
assert result is True
@@ -249,3 +291,45 @@ class TestValidateSafePathExtra:
with patch("modules.security_utils.Path.resolve", side_effect=OSError("disk fail")):
with pytest.raises(ValueError, match="Invalid or unsafe file path"):
validate_safe_path("some_file.db", base_dir=str(tmp_path))
class TestSanitizeName:
"""Tests for sanitize_name() — log-safe identifier sanitization."""
def test_newline_stripped(self):
from modules.security_utils import sanitize_name
assert "\n" not in sanitize_name("Evil\nNode")
def test_carriage_return_stripped(self):
from modules.security_utils import sanitize_name
assert "\r" not in sanitize_name("Evil\rNode")
def test_tab_stripped(self):
from modules.security_utils import sanitize_name
assert "\t" not in sanitize_name("Tab\tNode")
def test_null_byte_stripped(self):
from modules.security_utils import sanitize_name
assert "\x00" not in sanitize_name("Bad\x00Name")
def test_ansi_escape_stripped(self):
from modules.security_utils import sanitize_name
assert "\x1b" not in sanitize_name("\x1b[31mRed\x1b[0m")
def test_truncated_to_max_length(self):
from modules.security_utils import sanitize_name
result = sanitize_name("A" * 100, max_length=64)
assert len(result) <= 64
def test_normal_name_unchanged(self):
from modules.security_utils import sanitize_name
assert sanitize_name("Alice") == "Alice"
def test_non_string_coerced(self):
from modules.security_utils import sanitize_name
assert sanitize_name(42) == "42"
def test_negative_max_length_raises(self):
from modules.security_utils import sanitize_name
with pytest.raises(ValueError):
sanitize_name("test", max_length=-1)
+200
View File
@@ -1026,6 +1026,56 @@ class TestConfigNotificationsRoutes:
)
assert resp.status_code in (200, 400, 500)
def test_notifications_test_rejects_private_smtp_host(self, client, viewer):
"""SSRF guard: RFC 6598 shared/CGN address (100.64.0.0/10) must be rejected."""
viewer.db_manager.set_metadata('notif.smtp_host', '100.64.0.1')
viewer.db_manager.set_metadata('notif.smtp_port', '587')
viewer.db_manager.set_metadata('notif.smtp_security', 'starttls')
viewer.db_manager.set_metadata('notif.from_email', 'bot@example.com')
viewer.db_manager.set_metadata('notif.recipients', 'admin@example.com')
resp = client.post("/api/config/notifications/test")
assert resp.status_code == 400
data = resp.get_json()
assert 'private' in data.get('error', '').lower() or 'reserved' in data.get('error', '').lower()
# reset
viewer.db_manager.set_metadata('notif.smtp_host', '')
def test_notifications_test_rejects_loopback_smtp_host(self, client, viewer):
"""SSRF guard: SMTP host of localhost/loopback must be rejected."""
viewer.db_manager.set_metadata('notif.smtp_host', '127.0.0.1')
viewer.db_manager.set_metadata('notif.smtp_port', '25')
viewer.db_manager.set_metadata('notif.smtp_security', 'none')
viewer.db_manager.set_metadata('notif.from_email', 'bot@example.com')
viewer.db_manager.set_metadata('notif.recipients', 'admin@example.com')
resp = client.post("/api/config/notifications/test")
assert resp.status_code == 400
data = resp.get_json()
assert 'private' in data.get('error', '').lower() or 'reserved' in data.get('error', '').lower()
# reset
viewer.db_manager.set_metadata('notif.smtp_host', '')
def test_notifications_test_allows_local_smtp_when_flag_set(self, client, viewer):
"""allow_local_smtp=true permits private-IP SMTP hosts (e.g. local Postfix)."""
viewer.db_manager.set_metadata('notif.smtp_host', '127.0.0.1')
viewer.db_manager.set_metadata('notif.smtp_port', '25')
viewer.db_manager.set_metadata('notif.smtp_security', 'none')
viewer.db_manager.set_metadata('notif.from_email', 'bot@example.com')
viewer.db_manager.set_metadata('notif.recipients', 'admin@example.com')
viewer.db_manager.set_metadata('notif.allow_local_smtp', 'true')
resp = client.post("/api/config/notifications/test")
# Must not be rejected with 400 for private address — may be 200 or 500 (send attempt)
assert resp.status_code != 400 or 'private' not in (resp.get_json() or {}).get('error', '').lower()
# reset
viewer.db_manager.set_metadata('notif.smtp_host', '')
viewer.db_manager.set_metadata('notif.allow_local_smtp', '')
def test_notifications_get_includes_allow_local_smtp(self, client):
"""GET /api/config/notifications must return allow_local_smtp field."""
resp = client.get("/api/config/notifications")
assert resp.status_code == 200
data = resp.get_json()
assert 'allow_local_smtp' in data
# ===========================================================================
# Feed management API
@@ -2920,6 +2970,7 @@ class TestDbPathResolutionFromConfigDir:
)
<<<<<<< HEAD
class TestRadioDebugConfig:
"""Tests for GET/POST /api/config/radio-debug endpoints."""
@@ -2989,3 +3040,152 @@ class TestRadioDebugConfig:
data = resp.get_json()
assert data["success"] is True
assert data["op_id"] is None
=======
# ===========================================================================
# Security: Restore endpoint path traversal prevention (GAP W1)
# ===========================================================================
class TestRestoreEndpointSecurity:
"""POST /api/maintenance/restore must reject path traversal attacks.
Covers GAP W1: validate_safe_path() added before shutil.copy2().
Dangerous system directories and traversal patterns must return 400.
"""
def test_etc_passwd_path_rejected(self, client):
"""/etc/passwd supplied as db_file must be blocked."""
resp = client.post(
"/api/maintenance/restore",
json={"db_file": "/etc/passwd"},
content_type="application/json",
)
assert resp.status_code == 400
data = resp.get_json()
assert "error" in data
def test_etc_shadow_path_rejected(self, client):
"""/etc/shadow must be blocked (credential file)."""
resp = client.post(
"/api/maintenance/restore",
json={"db_file": "/etc/shadow"},
content_type="application/json",
)
assert resp.status_code == 400
def test_proc_self_environ_rejected(self, client):
"""/proc/self/environ must be blocked (process secrets)."""
resp = client.post(
"/api/maintenance/restore",
json={"db_file": "/proc/self/environ"},
content_type="application/json",
)
assert resp.status_code == 400
def test_empty_db_file_rejected(self, client):
"""Empty db_file must return 400."""
resp = client.post(
"/api/maintenance/restore",
json={"db_file": ""},
content_type="application/json",
)
assert resp.status_code == 400
def test_missing_db_file_key_rejected(self, client):
"""Missing db_file key must return 400."""
resp = client.post(
"/api/maintenance/restore",
json={},
content_type="application/json",
)
assert resp.status_code == 400
# ===========================================================================
# Security: Feed preview/test SSRF prevention (GAP W2)
# ===========================================================================
class TestFeedPreviewSecurity:
"""POST /api/feeds/preview and /api/feeds/test must reject SSRF-able URLs.
Covers GAP W2: validate_external_url() added before any outbound fetch.
Private IPs, loopback, and file:// schemes must return 400.
"""
def test_metadata_endpoint_blocked_in_preview(self, client):
"""169.254.169.254 (cloud metadata) must be blocked in feed preview."""
resp = client.post(
"/api/feeds/preview",
json={"feed_url": "http://169.254.169.254/latest/meta-data/", "feed_type": "rss"},
content_type="application/json",
)
assert resp.status_code == 400
data = resp.get_json()
assert "error" in data
def test_loopback_blocked_in_preview(self, client):
"""127.0.0.1 loopback must be blocked in feed preview."""
resp = client.post(
"/api/feeds/preview",
json={"feed_url": "http://127.0.0.1/internal", "feed_type": "rss"},
content_type="application/json",
)
assert resp.status_code == 400
def test_file_scheme_blocked_in_preview(self, client):
"""file:// scheme must be blocked in feed preview."""
resp = client.post(
"/api/feeds/preview",
json={"feed_url": "file:///etc/passwd", "feed_type": "rss"},
content_type="application/json",
)
assert resp.status_code == 400
def test_private_network_blocked_in_preview(self, client):
"""10.x.x.x (private RFC1918) must be blocked in feed preview."""
resp = client.post(
"/api/feeds/preview",
json={"feed_url": "http://10.0.0.1/feed.xml", "feed_type": "rss"},
content_type="application/json",
)
assert resp.status_code == 400
def test_missing_feed_url_rejected(self, client):
"""Missing feed_url key must return 400."""
resp = client.post(
"/api/feeds/preview",
json={"feed_type": "rss"},
content_type="application/json",
)
assert resp.status_code == 400
def test_metadata_endpoint_blocked_in_test_route(self, client):
"""169.254.169.254 must be blocked in /api/feeds/test as well."""
resp = client.post(
"/api/feeds/test",
json={"url": "http://169.254.169.254/metadata"},
content_type="application/json",
)
assert resp.status_code == 400
def test_loopback_blocked_in_test_route(self, client):
"""127.0.0.1 must be blocked in /api/feeds/test."""
resp = client.post(
"/api/feeds/test",
json={"url": "http://127.0.0.1/internal"},
content_type="application/json",
)
assert resp.status_code == 400
def test_validate_external_url_called_for_preview(self, client):
"""validate_external_url is invoked — not bypassed — in the preview handler."""
with patch("modules.web_viewer.app.validate_external_url", return_value=False) as mock_veu:
resp = client.post(
"/api/feeds/preview",
json={"feed_url": "http://192.168.1.1/feed.rss", "feed_type": "rss"},
content_type="application/json",
)
mock_veu.assert_called()
assert resp.status_code == 400
>>>>>>> 38d040a (security: SSRF hardening, log injection sanitization, and allow_local_smtp)