wire()->addHookAfter('ProcessWire::ready', $this, 'executeAtReady');
return 0; // indicates we will update system version ourselves when ready
}
public function executeAtReady() {
$this->auto = true;
if(!$this->update()) return;
$this->message(
"Details: $this->detailsUrl",
Notice::allowMarkup
);
$this->updater->saveSystemVersion(17);
}
/**
* Apply the update
*
* @return bool
* @throws WireException
*
*/
public function update() {
if(!$this->isApache()) {
$this->warning(
"Update skipped because Apache not detected. " .
"Please see this post for details on how to apply this update manually.",
Notice::allowMarkup | Notice::noGroup
);
return true;
}
$blockAll =
"\n\n Require all denied\n" . // Apache 2.4+
"\n\n Order allow,deny\n Deny from all\n"; // Prior to Apache 2.4
$denyAll = str_replace("\n", "\n ", $blockAll); // indented blockAll
$rules = array(
'all' => array(
'label' => 'block all access',
'content' => ltrim($blockAll),
),
'php' => array(
'label' => 'block all PHP files',
'content' => "$denyAll\n",
),
'rifc' => array(
'label' => 'block some PHP files',
'content' => "$denyAll\n",
)
);
$cachePath = $this->wire('config')->paths->cache;
$siteRootDir = rtrim($this->wire('config')->paths->site, '/');
$siteRootUrl = rtrim($this->wire('config')->urls->site, '/');
$sitePathRules = array(
'/' => 'rifc',
'/assets/' => 'php',
'/assets/cache/' => 'all',
'/assets/backups/' => 'all',
'/assets/logs/' => 'all',
'/templates/' => 'php',
'/modules/' => 'php',
);
/** @var WireFileTools $files */
$files = $this->wire('files');
$numErrors = 0;
foreach($sitePathRules as $dir => $ruleName) {
$rule = $rules[$ruleName];
$header = "# Start ProcessWire:pwb$ruleName (update 17)";
$footer = "# End ProcessWire:pwb$ruleName";
$summary = "# $rule[label] (optional fallback if root .htaccess missing)";
$location = "$siteRootUrl$dir.htaccess";
$content = "$header\n$summary\n$rule[content]\n$footer";
$file = $siteRootDir . $dir . '.htaccess';
$url = $siteRootUrl . $dir . '.htaccess';
$path = dirname($file);
if(!is_dir($path)) {
if($this->auto) $this->message("Skipped $url (directory not present)");
continue;
}
if(file_exists($file)) {
// existing .htaccess file already present
if($this->auto) $this->message("Skipped: $url (already exists)");
continue;
}
// no .htaccess file currently present
$writable = is_writable(dirname($file));
$data = $content;
$actionLabel = 'Created';
if(!$writable) {
// file not writable, so we will create a temporary file in cache instead (for optional manual copy)
$file = $cachePath . str_replace(array('/', "\\", '.', '--'), '-', trim(str_replace($siteRootUrl, 'site', $url), '/')) . '.txt';
$tmpUrl = str_replace($siteRootDir, $siteRootUrl, $file);
if(file_exists($file)) {
// file already exists so we can skip
if($this->auto) $this->message("Ignored: $tmpUrl (already exists)");
continue;
}
$writable = is_writable(dirname($file));
if($writable) {
$this->warning("Unable to write updates to '$url', so writing to '$tmpUrl' instead, in case you want to copy manually.");
$data = "# Intended location of this file: $location\n$data";
$actionLabel = 'Created';
}
$url = $tmpUrl;
}
if(!$writable) {
if($ruleName !== 'all') {
if($this->auto) $this->message("Ignored: $url");
} else {
$this->error("Unable to write: $url");
$numErrors++;
}
continue;
}
try {
if($files->filePutContents($file, "$data\n", LOCK_EX)) {
$this->message("$actionLabel: $url");
} else {
throw new WireException("Unable to write: $url");
}
} catch(\Exception $e) {
$this->error($e->getMessage());
$numErrors++;
}
}
return $numErrors === 0;
}
/**
* Are we running under Apache?
*
* @return bool
*
*/
public function isApache() {
$software = isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : '';
if(stripos($software, 'microsoft-iis') !== false) return false;
if(stripos($software, 'nginx') !== false) return false;
if(stripos($software, 'apache') !== false) return true;
if(function_exists('apache_get_version') && stripos(apache_get_version(), 'Apache') !== false) return true;
if(function_exists('apache_get_modules') && in_array('mod_rewrite', apache_get_modules())) return true;
if(getenv('HTTP_MOD_REWRITE') == 'On') return true;
$rootPath = $this->wire('config')->paths->root;
if(file_exists($rootPath . 'Web.config') || file_exists($rootPath . 'web.config')) return false; // IIS
if(file_exists($rootPath . '.htaccess')) return true;
return false;
}
/**
* Is this update useful for this installation?
*
* @return bool
*
*/
public function isUseful() {
if(!$this->isApache()) return false;
$f = '.htaccess';
$paths = $this->wire('config')->paths;
$assets = $paths->assets;
if(!file_exists($assets . $f)) return true;
if(!file_exists($assets . "logs/$f")) return true;
if(!file_exists($assets . "cache/$f")) return true;
if(!file_exists($assets . "backups/$f")) return true;
if(!file_exists($paths->templates . $f)) return true;
if(!file_exists($paths->site . $f)) return true;
if(!file_exists($paths->site . "modules/$f")) return true;
return false;
}
}