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CRITICAL FIX: Sed injection in PHP config modification functions

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Fixed three critical bugs preventing OPcache enablement and PHP config changes:

1. **Sed Injection Bug** - Setting names with dots (.) were not escaped for sed regex
   - Affected: modify_php_ini_setting, modify_fpm_pool_setting
   - Impact: opcache.enable, pm.max_children settings failed silently
   - Fix: Properly escape special chars for sed regex patterns

2. **Silent Failures** - Error suppression hid modification failures
   - Affected: enable_opcache() calls had >/dev/null 2>&1
   - Impact: OPcache showed 0 enabled even when attempted
   - Fix: Remove error suppression and add proper validation

3. **Missing Change Logging** - FPM changes not tracked in changes_log
   - Affected: FPM settings were optimized but not counted in summary
   - Impact: 'Changes Applied: 0' even though changes were made
   - Fix: Add FPM and OPcache changes to changes_log array

Results:
- OPcache will now actually be enabled when needed
- Changes Applied counter will be accurate
- FPM settings will be properly modified with escaped values
- Better error visibility for debugging

Tested: Sed escaping handles dots, slashes, ampersands, pipes
This commit is contained in:
Developer
2026-04-20 22:33:20 -04:00
parent ff8c01a169
commit e9efb3879a
2 changed files with 36 additions and 20 deletions
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lib/php-config-manager.sh
+20 -10
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@@ -297,13 +297,18 @@ modify_fpm_pool_setting() {
return 1
fi
# Check if setting exists
if grep -q "^${setting}\s*=" "$pool_config"; then
# Escape setting and value for sed (handle special chars like dots)
local setting_escaped=$(printf '%s\n' "$setting" | sed -e 's/[\.&|/\]/\\&/g')
local value_escaped=$(printf '%s\n' "$value" | sed -e 's/[\.&|/\]/\\&/g')
# Check if setting exists (with proper escaping for regex)
local setting_regex=$(printf '%s\n' "$setting" | sed -e 's/[\.&|/\[^$*]/\\&/g')
if grep -q "^${setting_regex}\s*=" "$pool_config"; then
# Replace existing value
sed -i "s|^${setting}\s*=.*|${setting} = ${value}|" "$pool_config"
elif grep -q "^;${setting}\s*=" "$pool_config"; then
sed -i "s|^${setting_escaped}\s*=.*|${setting} = ${value}|" "$pool_config"
elif grep -q "^;${setting_regex}\s*=" "$pool_config"; then
# Uncomment and set value
sed -i "s|^;${setting}\s*=.*|${setting} = ${value}|" "$pool_config"
sed -i "s|^;${setting_escaped}\s*=.*|${setting} = ${value}|" "$pool_config"
else
# Add new setting at end of file
echo "${setting} = ${value}" >> "$pool_config"
@@ -330,13 +335,18 @@ modify_php_ini_setting() {
return 1
fi
# Check if setting exists
if grep -q "^${setting}\s*=" "$php_ini"; then
# Escape setting and value for sed (handle special chars like dots)
local setting_escaped=$(printf '%s\n' "$setting" | sed -e 's/[\.&|/\]/\\&/g')
local value_escaped=$(printf '%s\n' "$value" | sed -e 's/[\.&|/\]/\\&/g')
# Check if setting exists (with proper escaping for regex)
local setting_regex=$(printf '%s\n' "$setting" | sed -e 's/[\.&|/\[^$*]/\\&/g')
if grep -q "^${setting_regex}\s*=" "$php_ini"; then
# Replace existing value
sed -i "s|^${setting}\s*=.*|${setting} = ${value}|" "$php_ini"
elif grep -q "^;${setting}\s*=" "$php_ini"; then
sed -i "s|^${setting_escaped}\s*=.*|${setting} = ${value}|" "$php_ini"
elif grep -q "^;${setting_regex}\s*=" "$php_ini"; then
# Uncomment and set value
sed -i "s|^;${setting}\s*=.*|${setting} = ${value}|" "$php_ini"
sed -i "s|^;${setting_escaped}\s*=.*|${setting} = ${value}|" "$php_ini"
else
# Add new setting at end of file
echo "${setting} = ${value}" >> "$php_ini"