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Protect user launch agents during clean

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Tw93
2026-03-14 22:32:53 +08:00
parent 9db5488397
commit 2e6553ab2b
7 changed files with 219 additions and 314 deletions
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2
SECURITY_AUDIT.md
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@@ -119,6 +119,7 @@ In addition to path blocking, these categories are protected:
- Browser history and cookies
- Time Machine data (during active backup)
- `com.apple.*` LaunchAgents/LaunchDaemons
- user-owned `~/Library/LaunchAgents/*.plist` automation/configuration
- iCloud-synced `Mobile Documents`
## Implementation Details
@@ -145,6 +146,7 @@ Protected or conservatively handled categories include:
- browser history and cookies
- Time Machine data while backup state is active or ambiguous
- `com.apple.*` LaunchAgents and LaunchDaemons
- user-owned `~/Library/LaunchAgents/*.plist` automation/configuration
- iCloud-synced `Mobile Documents` data
Project purge also uses conservative heuristics:

2
bin/clean.sh
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@@ -976,7 +976,7 @@ perform_cleanup() {
start_section "Orphaned data"
clean_orphaned_app_data
clean_orphaned_system_services
clean_orphaned_launch_agents
show_user_launch_agent_hint_notice
end_section
# ===== 11. Apple Silicon =====

192
lib/clean/apps.sh
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@@ -597,195 +597,11 @@ clean_orphaned_system_services() {
}
# ============================================================================
# Orphaned LaunchAgent/LaunchDaemon Cleanup (Generic Detection)
# User LaunchAgents
# ============================================================================
# Extract program path from plist (supports both ProgramArguments and Program)
_extract_program_path() {
local plist="$1"
local program=""
program=$(plutil -extract ProgramArguments.0 raw "$plist" 2> /dev/null)
if [[ -z "$program" ]]; then
program=$(plutil -extract Program raw "$plist" 2> /dev/null)
fi
echo "$program"
}
# Extract associated bundle identifier from plist
_extract_associated_bundle() {
local plist="$1"
local associated=""
# Try array format first
associated=$(plutil -extract AssociatedBundleIdentifiers.0 raw "$plist" 2> /dev/null)
if [[ -z "$associated" ]] || [[ "$associated" == "1" ]]; then
# Try string format
associated=$(plutil -extract AssociatedBundleIdentifiers raw "$plist" 2> /dev/null)
# Filter out dict/array markers
if [[ "$associated" == "{"* ]] || [[ "$associated" == "["* ]]; then
associated=""
fi
fi
echo "$associated"
}
# Check if a LaunchAgent/LaunchDaemon is orphaned using multi-layer verification
# Returns 0 if orphaned, 1 if not orphaned
is_launch_item_orphaned() {
local plist="$1"
# Layer 1: Check if program path exists
local program=$(_extract_program_path "$plist")
# No program path - skip (not a standard launch item)
[[ -z "$program" ]] && return 1
# Program exists -> not orphaned
[[ -e "$program" ]] && return 1
# Layer 2: Check AssociatedBundleIdentifiers
local associated=$(_extract_associated_bundle "$plist")
if [[ -n "$associated" ]]; then
# Check if associated app exists via mdfind
if run_with_timeout 2 mdfind "kMDItemCFBundleIdentifier == '$associated'" 2> /dev/null | head -1 | grep -q .; then
return 1 # Associated app found -> not orphaned
fi
# Extract vendor name from bundle ID (com.vendor.app -> vendor)
local vendor=$(echo "$associated" | cut -d'.' -f2)
if [[ -n "$vendor" ]] && [[ ${#vendor} -ge 3 ]]; then
# Check if any app from this vendor exists
if find /Applications ~/Applications -maxdepth 2 -iname "*${vendor}*" -type d 2> /dev/null | grep -iq "\.app"; then
return 1 # Vendor app exists -> not orphaned
fi
fi
fi
# Layer 3: Check Application Support directory activity
if [[ "$program" =~ /Library/Application\ Support/([^/]+)/ ]]; then
local app_support_name="${BASH_REMATCH[1]}"
# Check both user and system Application Support
for base in "$HOME/Library/Application Support" "/Library/Application Support"; do
local support_path="$base/$app_support_name"
if [[ -d "$support_path" ]]; then
# Check if there are files modified in last 7 days (active usage)
local recent_file=$(find "$support_path" -type f -mtime -7 2> /dev/null | head -1)
if [[ -n "$recent_file" ]]; then
return 1 # Active Application Support -> not orphaned
fi
fi
done
fi
# Layer 4: Check if app name from program path exists
if [[ "$program" =~ /Applications/([^/]+)\.app/ ]]; then
local app_name="${BASH_REMATCH[1]}"
# Look for apps with similar names (case-insensitive)
if find /Applications ~/Applications -maxdepth 2 -iname "*${app_name}*" -type d 2> /dev/null | grep -iq "\.app"; then
return 1 # Similar app exists -> not orphaned
fi
fi
# Layer 5: PrivilegedHelper special handling
if [[ "$program" =~ ^/Library/PrivilegedHelperTools/ ]]; then
local filename=$(basename "$plist")
local bundle_id="${filename%.plist}"
# Extract app hint from bundle ID (com.vendor.app.helper -> vendor)
local app_hint=$(echo "$bundle_id" | sed 's/com\.//; s/\..*helper.*//')
if [[ -n "$app_hint" ]] && [[ ${#app_hint} -ge 3 ]]; then
# Look for main app
if find /Applications ~/Applications -maxdepth 2 -iname "*${app_hint}*" -type d 2> /dev/null | grep -iq "\.app"; then
return 1 # Helper's main app exists -> not orphaned
fi
fi
fi
# All checks failed -> likely orphaned
# User-level LaunchAgents are user-owned automation/configuration, not generic
# cleanup targets. `mo clean` must not delete them automatically.
clean_orphaned_launch_agents() {
return 0
}
# Clean orphaned user-level LaunchAgents
# Only processes ~/Library/LaunchAgents (safer than system-level)
clean_orphaned_launch_agents() {
local launch_agents_dir="$HOME/Library/LaunchAgents"
[[ ! -d "$launch_agents_dir" ]] && return 0
start_section_spinner "Scanning orphaned launch agents..."
local -a orphaned_items=()
local total_orphaned_kb=0
# Scan user LaunchAgents
while IFS= read -r -d '' plist; do
local filename=$(basename "$plist")
# Skip Apple's LaunchAgents
[[ "$filename" == com.apple.* ]] && continue
local bundle_id="${filename%.plist}"
# Check if orphaned using multi-layer verification
if is_launch_item_orphaned "$plist"; then
local size_kb=$(get_path_size_kb "$plist")
orphaned_items+=("$bundle_id|$plist")
total_orphaned_kb=$((total_orphaned_kb + size_kb))
fi
done < <(find "$launch_agents_dir" -maxdepth 1 -name "*.plist" -print0 2> /dev/null)
stop_section_spinner
local orphaned_count=${#orphaned_items[@]}
if [[ $orphaned_count -eq 0 ]]; then
return 0
fi
# Clean the orphaned items automatically
local removed_count=0
local dry_run_count=0
local is_dry_run=false
if [[ "${MOLE_DRY_RUN:-0}" == "1" ]]; then
is_dry_run=true
fi
for item in "${orphaned_items[@]}"; do
IFS='|' read -r bundle_id plist_path <<< "$item"
if [[ "$is_dry_run" == "true" ]]; then
dry_run_count=$((dry_run_count + 1))
log_operation "clean" "DRY_RUN" "$plist_path" "orphaned launch agent"
continue
fi
# Try to unload first (if currently loaded)
launchctl unload "$plist_path" 2> /dev/null || true
# Remove the plist file
if safe_remove "$plist_path" false; then
removed_count=$((removed_count + 1))
log_operation "clean" "REMOVED" "$plist_path" "orphaned launch agent"
else
log_operation "clean" "FAILED" "$plist_path" "permission denied"
fi
done
if [[ "$is_dry_run" == "true" ]]; then
if [[ $dry_run_count -gt 0 ]]; then
local cleaned_mb=$(echo "$total_orphaned_kb" | awk '{printf "%.1f", $1/1024}')
echo " ${YELLOW}${ICON_DRY_RUN}${NC} Would remove $dry_run_count orphaned launch agent(s), ${cleaned_mb}MB"
note_activity
fi
else
if [[ $removed_count -gt 0 ]]; then
local cleaned_mb=$(echo "$total_orphaned_kb" | awk '{printf "%.1f", $1/1024}')
echo " ${GREEN}${ICON_SUCCESS}${NC} Removed $removed_count orphaned launch agent(s), ${cleaned_mb}MB"
note_activity
fi
fi
}

114
lib/clean/hints.sh
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@@ -54,6 +54,65 @@ hint_get_path_size_kb_with_timeout() {
printf '%s\n' "$size_kb"
}
# shellcheck disable=SC2329
hint_extract_launch_agent_program_path() {
local plist="$1"
local program=""
program=$(plutil -extract ProgramArguments.0 raw "$plist" 2> /dev/null || echo "")
if [[ -z "$program" ]]; then
program=$(plutil -extract Program raw "$plist" 2> /dev/null || echo "")
fi
printf '%s\n' "$program"
}
# shellcheck disable=SC2329
hint_extract_launch_agent_associated_bundle() {
local plist="$1"
local associated=""
associated=$(plutil -extract AssociatedBundleIdentifiers.0 raw "$plist" 2> /dev/null || echo "")
if [[ -z "$associated" ]] || [[ "$associated" == "1" ]]; then
associated=$(plutil -extract AssociatedBundleIdentifiers raw "$plist" 2> /dev/null || echo "")
if [[ "$associated" == "{"* ]] || [[ "$associated" == "["* ]]; then
associated=""
fi
fi
printf '%s\n' "$associated"
}
# shellcheck disable=SC2329
hint_is_app_scoped_launch_target() {
local program="$1"
case "$program" in
/Applications/Setapp/*.app/* | \
/Applications/*.app/* | \
"$HOME"/Applications/*.app/* | \
/Library/Input\ Methods/*.app/* | \
/Library/PrivilegedHelperTools/*)
return 0
;;
esac
return 1
}
# shellcheck disable=SC2329
hint_launch_agent_bundle_exists() {
local bundle_id="$1"
[[ -z "$bundle_id" ]] && return 1
if run_with_timeout 2 mdfind "kMDItemCFBundleIdentifier == '$bundle_id'" 2> /dev/null | head -1 | grep -q .; then
return 0
fi
return 1
}
# shellcheck disable=SC2329
record_project_artifact_hint() {
local path="$1"
@@ -351,3 +410,58 @@ show_project_artifact_hint_notice() {
fi
echo -e " ${GRAY}${ICON_REVIEW}${NC} Review: mo purge"
}
# shellcheck disable=SC2329
show_user_launch_agent_hint_notice() {
local launch_agents_dir="$HOME/Library/LaunchAgents"
[[ -d "$launch_agents_dir" ]] || return 0
local max_hits=3
local -a labels=()
local -a reasons=()
local -a targets=()
local plist
while IFS= read -r -d '' plist; do
local filename
filename=$(basename "$plist")
[[ "$filename" == com.apple.* ]] && continue
local reason=""
local target=""
local program=""
local associated=""
program=$(hint_extract_launch_agent_program_path "$plist")
if [[ -n "$program" ]] && hint_is_app_scoped_launch_target "$program" && [[ ! -e "$program" ]]; then
reason="Missing app/helper target"
target="${program/#$HOME/~}"
else
associated=$(hint_extract_launch_agent_associated_bundle "$plist")
if [[ -n "$associated" ]] && ! hint_launch_agent_bundle_exists "$associated"; then
reason="Associated app not found"
target="$associated"
fi
fi
if [[ -n "$reason" ]]; then
labels+=("$filename")
reasons+=("$reason")
targets+=("$target")
if [[ ${#labels[@]} -ge $max_hits ]]; then
break
fi
fi
done < <(find "$launch_agents_dir" -maxdepth 1 -name "*.plist" -print0 2> /dev/null)
[[ ${#labels[@]} -eq 0 ]] && return 0
note_activity
local i
for i in "${!labels[@]}"; do
echo -e " ${GREEN}${ICON_LIST}${NC} Potential stale login item: ${labels[$i]}"
echo -e " ${GRAY}${ICON_SUBLIST}${NC} ${reasons[$i]}: ${GRAY}${targets[$i]}${NC}"
done
echo -e " ${GRAY}${ICON_REVIEW}${NC} Review: open ~/Library/LaunchAgents and remove only items you recognize"
}

137
tests/clean_apps.bats
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@@ -412,142 +412,31 @@ EOF
[[ "$output" != *"launchctl-called"* ]]
}
@test "is_launch_item_orphaned detects orphan when program missing" {
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOF'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/apps.sh"
tmp_dir="$(mktemp -d)"
tmp_plist="$tmp_dir/com.test.orphan.plist"
cat > "$tmp_plist" << 'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.test.orphan</string>
<key>ProgramArguments</key>
<array>
<string>/nonexistent/app/program</string>
</array>
</dict>
</plist>
PLIST
run_with_timeout() { shift; "$@"; }
if is_launch_item_orphaned "$tmp_plist"; then
echo "orphan"
fi
rm -rf "$tmp_dir"
EOF
[ "$status" -eq 0 ]
[[ "$output" == *"orphan"* ]]
}
@test "is_launch_item_orphaned protects when program exists" {
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOF'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/apps.sh"
tmp_dir="$(mktemp -d)"
tmp_plist="$tmp_dir/com.test.active.plist"
tmp_program="$tmp_dir/program"
touch "$tmp_program"
cat > "$tmp_plist" << PLIST
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.test.active</string>
<key>ProgramArguments</key>
<array>
<string>$tmp_program</string>
</array>
</dict>
</plist>
PLIST
run_with_timeout() { shift; "$@"; }
if is_launch_item_orphaned "$tmp_plist"; then
echo "orphan"
else
echo "not-orphan"
fi
rm -rf "$tmp_dir"
EOF
[ "$status" -eq 0 ]
[[ "$output" == *"not-orphan"* ]]
}
@test "is_launch_item_orphaned protects when app support active" {
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOF'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/apps.sh"
tmp_dir="$(mktemp -d)"
tmp_plist="$tmp_dir/com.test.appsupport.plist"
mkdir -p "$HOME/Library/Application Support/TestApp"
touch "$HOME/Library/Application Support/TestApp/recent.txt"
cat > "$tmp_plist" << 'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.test.appsupport</string>
<key>ProgramArguments</key>
<array>
<string>$HOME/Library/Application Support/TestApp/Current/app</string>
</array>
</dict>
</plist>
PLIST
run_with_timeout() { shift; "$@"; }
if is_launch_item_orphaned "$tmp_plist"; then
echo "orphan"
else
echo "not-orphan"
fi
rm -rf "$tmp_dir"
rm -rf "$HOME/Library/Application Support/TestApp"
EOF
[ "$status" -eq 0 ]
[[ "$output" == *"not-orphan"* ]]
}
@test "clean_orphaned_launch_agents skips when no orphans" {
@test "clean_orphaned_launch_agents preserves user launch agents" {
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOF'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/apps.sh"
mkdir -p "$HOME/Library/LaunchAgents"
cat > "$HOME/Library/LaunchAgents/com.example.custom-task.plist" <<'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.example.custom-task</string>
</dict>
</plist>
PLIST
start_section_spinner() { :; }
stop_section_spinner() { :; }
note_activity() { :; }
get_path_size_kb() { echo "1"; }
run_with_timeout() { shift; "$@"; }
clean_orphaned_launch_agents
[[ -f "$HOME/Library/LaunchAgents/com.example.custom-task.plist" ]]
EOF
[ "$status" -eq 0 ]

24
tests/clean_core.bats
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@@ -98,6 +98,29 @@ run_clean_dry_run() {
[ -f "$HOME/Library/Caches/TestApp/cache.tmp" ]
}
@test "mo clean --dry-run reports stale login item without deleting it" {
mkdir -p "$HOME/Library/LaunchAgents"
cat > "$HOME/Library/LaunchAgents/com.example.stale.plist" <<'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.example.stale</string>
<key>ProgramArguments</key>
<array>
<string>/Applications/Missing.app/Contents/MacOS/Missing</string>
</array>
</dict>
</plist>
PLIST
run env HOME="$HOME" MOLE_TEST_MODE=1 "$PROJECT_ROOT/mole" clean --dry-run
[ "$status" -eq 0 ]
[[ "$output" == *"Potential stale login item: com.example.stale.plist"* ]]
[ -f "$HOME/Library/LaunchAgents/com.example.stale.plist" ]
}
@test "mo clean honors whitelist entries" {
mkdir -p "$HOME/Library/Caches/WhitelistedApp"
echo "keep me" > "$HOME/Library/Caches/WhitelistedApp/data.tmp"
@@ -322,4 +345,3 @@ EOF
[ "$status" -eq 0 ]
[[ "$output" == *"Time Machine backup in progress, skipping cleanup"* ]]
}

62
tests/clean_hints.bats
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@@ -97,3 +97,65 @@ EOT3
[[ "$output" == *"~/Library/Developer/Xcode/DerivedData"* ]]
[[ "$output" == *"Review: mo analyze, Device backups, docker system df"* ]]
}
@test "show_user_launch_agent_hint_notice reports missing app-backed target" {
mkdir -p "$HOME/Library/LaunchAgents"
cat > "$HOME/Library/LaunchAgents/com.example.stale.plist" <<'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.example.stale</string>
<key>ProgramArguments</key>
<array>
<string>/Applications/Missing.app/Contents/MacOS/Missing</string>
</array>
</dict>
</plist>
PLIST
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOT4'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/hints.sh"
note_activity() { :; }
show_user_launch_agent_hint_notice
EOT4
[ "$status" -eq 0 ]
[[ "$output" == *"Potential stale login item: com.example.stale.plist"* ]]
[[ "$output" == *"Missing app/helper target"* ]]
[[ "$output" == *"Review: open ~/Library/LaunchAgents"* ]]
}
@test "show_user_launch_agent_hint_notice skips custom shell wrappers" {
mkdir -p "$HOME/Library/LaunchAgents"
cat > "$HOME/Library/LaunchAgents/com.example.custom.plist" <<'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.example.custom</string>
<key>ProgramArguments</key>
<array>
<string>/bin/bash</string>
<string>-c</string>
<string>$HOME/bin/custom-task</string>
</array>
</dict>
</plist>
PLIST
run env HOME="$HOME" PROJECT_ROOT="$PROJECT_ROOT" bash --noprofile --norc <<'EOT5'
set -euo pipefail
source "$PROJECT_ROOT/lib/core/common.sh"
source "$PROJECT_ROOT/lib/clean/hints.sh"
note_activity() { :; }
show_user_launch_agent_hint_notice
EOT5
[ "$status" -eq 0 ]
[[ -z "$output" ]]
}