/wp-fdroid/android-permissions.php
PHP | 114 lines | 81 code | 19 blank | 14 comment | 15 complexity | dc3e72c5bbeb2ddb8829fd7908108c1f MD5 | raw file
Possible License(s): AGPL-3.0
- <?php
- // Class that provides PHP-friendly android permissions information from the raw Andoid source XML files that describes the permissions.
- class AndroidPermissions
- {
- // Path to the AndroidManifest.xml-file from the Android source. Get it from https://raw.github.com/android/platform_frameworks_base/master/core/res/AndroidManifest.xml for example.
- private $android_manifest_file_path;
- // Path to the strings.xml-file from the Android source. Get it from https://raw.github.com/android/platform_frameworks_base/master/core/res/res/values/strings.xml for example.
- private $android_strings_file_path;
- // Path to the file where the resulting permissions data will be cached. NOTE: Must be writable by PHP!
- private $cache_file_path;
- public function __construct($android_manifest_file_path_in = 'AndroidManifest.xml', $android_strings_file_path_in = 'strings.xml', $cache_file_path_in = 'android-permissions.cache') {
- $this->android_manifest_file_path = $android_manifest_file_path_in;
- $this->android_strings_file_path = $android_strings_file_path_in;
- $this->cache_file_path = $cache_file_path_in;
- }
- // Returns an associative array with android permissions and data about them
- function get_permissions_array() {
- // Check status of cache
- $android_manifest_file_stat = stat($this->android_manifest_file_path);
- $android_manifest_file_mtime = $android_manifest_file_stat['mtime'];
- $android_strings_file_stat = stat($this->android_strings_file_path);
- $android_strings_file_mtime = $android_strings_file_stat['mtime'];
- $cache_file_mtime = 0;
- if(file_exists($this->cache_file_path)) {
- $cache_file_stat = stat($this->cache_file_path);
- $cache_file_mtime = $cache_file_stat['mtime'];
- }
- // If the cache is fresh, use it instead
- if($android_manifest_file_mtime < $cache_file_mtime && $android_strings_file_mtime < $cache_file_mtime ) {
- $cache_file_handle = fopen($this->cache_file_path, 'r');
- $cache_file_content = fread($cache_file_handle, filesize($this->cache_file_path));
- fclose($cache_file_handle);
- $permissions = unserialize($cache_file_content);
- return $permissions;
- }
- // We are updating the cache, touch the file (note: race condition possible between stating the cache file above and this line...)
- touch($this->cache_file_path);
- // Get permission raw data from XML
- $manifestDoc = new DOMDocument;
- $manifestDoc->load($this->android_manifest_file_path);
- $manifestXpath = new DOMXPath($manifestDoc);
- $stringsDoc = new DOMDocument;
- $stringsDoc->load($this->android_strings_file_path);
- $stringsXpath = new DOMXPath($stringsDoc);
- $comment = '';
- foreach ($manifestXpath->query('node()') as $node) {
- // Save permissions and permission groups from tags
- if($node->nodeName == 'permission-group' || $node->nodeName == 'permission') {
- $name = $node->attributes->getNamedItem('name')->value;
- $name = substr(strrchr($name,'.'), 1);
- // Lookup the human readable title
- $labelObject = $node->attributes->getNamedItem('label');
- $labelString = $name;
- if( $labelObject !== NULL ) {
- $labelName = substr(strrchr($labelObject->value,'/'),1);
- $labelStringObject = $stringsXpath->query('//string[@name="'.$labelName.'"]');
- $labelString = ucfirst($labelStringObject->item(0)->nodeValue);
- }
- // Lookup the human readable description
- $descriptionObject = $node->attributes->getNamedItem('description');
- $descriptionString = '(Description missing)';
- if($descriptionObject !== NULL) {
- $descriptionName = substr(strrchr($descriptionObject->value,'/'),1);
- $descriptionStringObject = $stringsXpath->query('//string[@name="'.$descriptionName.'"]');
- $descriptionString = ucfirst($descriptionStringObject->item(0)->nodeValue);
- }
- $permissions[$node->nodeName][$name]['label'] = stripslashes($labelString);
- $permissions[$node->nodeName][$name]['description'] = stripslashes($descriptionString);
- $permissions[$node->nodeName][$name]['comment'] = stripslashes(str_replace(array("\r\n", "\r", "\n", "\t", ' '), '', $comment));
- if($node->nodeName == 'permission') {
- $permissionGroupObject = $node->attributes->getNamedItem('permissionGroup');
- $permissionGroup = 'none';
- if($permissionGroupObject !== NULL) {
- $permissionGroup = substr(strrchr($permissionGroupObject->value,'.'), 1);
- }
- $permissions[$node->nodeName][$name]['permissionGroup'] = $permissionGroup;
- $permissions[$node->nodeName][$name]['protectionLevel'] = $node->attributes->getNamedItem('protectionLevel')->value;
- }
- }
- // Cache descriptions from comments preceding the tags
- if($node->nodeName == '#comment') {
- $comment .= $node->textContent;
- }
- elseif($node->nodeName != '#text') {
- $comment = '';
- }
- }
- // Update cache with serialized permissions
- $cache_file_handle = fopen($this->cache_file_path, 'w');
- fwrite($cache_file_handle, serialize($permissions));
- fclose($cache_file_handle);
- return $permissions;
- }
- }
- ?>