Implementing touch and rm commands
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parent
ca7eee7e7c
commit
9d15ad3804
5 changed files with 361 additions and 3 deletions
89
commands/rm.json
Normal file
89
commands/rm.json
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@ -0,0 +1,89 @@
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{
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"name" : "rm",
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"info" : {
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"syntax" : "rm <file name>",
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"brief" : "Remove the specified file",
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},
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"action" : function ( arg )
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{
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if ( !arg || arg.length == 0 )
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{
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return "mkdir: Parameter expected<br/>\n";
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}
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shell.auto_prompt_focus = false;
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shell.auto_prompt_refresh = false;
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arg = shell.expandPath ( arg );
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var users_php = window.location.href;
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users_php = users_php.replace ( /\/([a-zA-Z\.]+)$/, '/modules/users/users.php' );
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params = 'action=rm&file=' + escape ( arg );
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var http = new XMLHttpRequest();
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http.open ( "POST", users_php, true );
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http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
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http.setRequestHeader("Content-length", params.length);
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http.setRequestHeader("Connection", "close");
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http.onreadystatechange = function ()
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{
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if ( http.readyState == 4 && http.status == 200 )
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{
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if ( http.responseText.length > 0 )
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{
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shell.cmdOut.innerHTML = http.responseText;
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} else {
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var files_config = window.location.href;
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files_config = files_config.replace ( /\/([a-zA-Z\.]+)$/, '/modules/users/files.php' );
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var http2 = new XMLHttpRequest();
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http2.open ( "GET", files_config, true );
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http2.onreadystatechange = function ()
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{
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if ( http2.readyState == 4 && http2.status == 200 )
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{
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shell.files = eval ( '(' + http2.responseText + ')' );
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// Remove duplicates
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var tmp = new Array();
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for ( var i in shell.files )
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{
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var contains = false;
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for ( var j=0; j < tmp.length && !contains; j++ )
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{
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if ( shell.files[i].path == tmp[j].path )
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{
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contains = true;
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}
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}
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if ( !contains )
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{
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tmp.push ( shell.files[i] );
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}
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}
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shell.files = tmp;
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}
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}
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http2.send ( null );
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shell.cmdOut.innerHTML = '';
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}
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shell.refreshPrompt ( false, false );
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shell.auto_prompt_focus = true;
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shell.auto_prompt_refresh = true;
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}
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}
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http.send ( params );
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shell.cmdOut.innerHTML = '';
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}
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}
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89
commands/touch.json
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89
commands/touch.json
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@ -0,0 +1,89 @@
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{
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"name" : "touch",
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"info" : {
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"syntax" : "touch <file name>",
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"brief" : "Create a new (empty) file with the specified name",
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},
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"action" : function ( arg )
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{
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if ( !arg || arg.length == 0 )
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{
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return "touch: Parameter expected<br/>\n";
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}
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shell.auto_prompt_focus = false;
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shell.auto_prompt_refresh = false;
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arg = shell.expandPath ( arg );
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var users_php = window.location.href;
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users_php = users_php.replace ( /\/([a-zA-Z\.]+)$/, '/modules/users/users.php' );
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params = 'action=touch&file=' + escape ( arg );
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var http = new XMLHttpRequest();
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http.open ( "POST", users_php, true );
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http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
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http.setRequestHeader("Content-length", params.length);
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http.setRequestHeader("Connection", "close");
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http.onreadystatechange = function ()
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{
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if ( http.readyState == 4 && http.status == 200 )
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{
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if ( http.responseText.length > 0 )
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{
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shell.cmdOut.innerHTML = http.responseText;
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} else {
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var files_config = window.location.href;
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files_config = files_config.replace ( /\/([a-zA-Z\.]+)$/, '/modules/users/files.php' );
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var http2 = new XMLHttpRequest();
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http2.open ( "GET", files_config, true );
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http2.onreadystatechange = function ()
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{
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if ( http2.readyState == 4 && http2.status == 200 )
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{
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shell.files = eval ( '(' + http2.responseText + ')' );
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// Remove duplicates
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var tmp = new Array();
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for ( var i in shell.files )
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{
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var contains = false;
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for ( var j=0; j < tmp.length && !contains; j++ )
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{
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if ( shell.files[i].path == tmp[j].path )
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{
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contains = true;
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}
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}
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if ( !contains )
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{
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tmp.push ( shell.files[i] );
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}
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}
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shell.files = tmp;
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}
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}
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http2.send ( null );
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shell.cmdOut.innerHTML = '';
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}
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shell.refreshPrompt ( false, false );
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shell.auto_prompt_focus = true;
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shell.auto_prompt_refresh = true;
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}
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}
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http.send ( params );
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shell.cmdOut.innerHTML = '';
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}
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}
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@ -305,6 +305,162 @@ function __json_encode( $data ) {
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return $json;
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}
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function __touch ( $file, $own_perms )
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{
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include "../../system/files_json.php";
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if ( !$files_json || strlen ( $files_json ) == 0 )
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{
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return 'touch: Error: Empty JSON file container';
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}
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if ( preg_match ( "@[^0-9a-zA-Z_\./\ ]@", $file ))
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{
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return "touch: Invalid character(s) for a file name out of range '[0-9a-zA-Z_./ ]'\n";
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}
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$has_perms = false;
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if ( $own_perms )
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{
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if ( is_array ( $own_perms ))
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{
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$has_perms = true;
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}
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}
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$user = getUser();
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$json = json_decode ( $files_json, true );
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$parent_dir = preg_replace ( '@/[^/]+$@', '', $file );
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$parent_dir_found = false;
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if ( preg_match ( "/^\s*$/", $parent_dir ))
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{
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$parent_dir = '/';
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}
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for ( $i=0; $i < count ( $json ); $i++ )
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{
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$path = $json[$i]['path'];
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if ( !$path || strlen ( $path ) == 0 )
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{
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continue;
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}
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if ( $path == $parent_dir )
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{
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$parent_dir_found = true;
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$perms = getPerms ( $parent_dir );
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$perms = json_decode ( $perms, true );
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if ( $perms['write'] == false )
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{
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$file = str_replace ( '<', '<', $file );
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$file = str_replace ( '>', '>', $file );
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return "touch: Could not touch $file: Permission denied\n";
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}
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}
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if ( $path == $file )
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{
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$file = str_replace ( '<', '<', $file );
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$file = str_replace ( '>', '>', $file );
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return "touch: Could not touch $file: The file already exists\n";
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}
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}
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if ( !$parent_dir_found )
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{
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$file = str_replace ( '<', '<', $file );
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$file = str_replace ( '>', '>', $file );
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return "touch: Could not touch $file: Parent directory not found\n";
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}
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$newfile = array();
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$newfile['path'] = "$file";
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$newfile['type'] = 'file';
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$newfile['owner'] = ($has_perms) ? $own_perms['owner'] : "$user";
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$newfile['can_read'] = ($has_perms) ? $own_perms['can_read'] : '@all';
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$newfile['can_write'] = ($has_perms) ? $own_perms['can_write'] : "$user";
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$newfile['content'] = "";
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array_push ( $json, $newfile );
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if ( !( $fp = fopen ( "../../system/files_json.php", "w" )))
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{
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return "touch: Unable to write on directories file\n";
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}
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fwrite ( $fp, "<?php\n\n\$files_json = <<<JSON\n".__json_encode ( $json )."\nJSON;\n\n?>");
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fclose ( $fp );
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return "";
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}
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function __rm ( $file )
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{
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include "../../system/files_json.php";
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if ( !$files_json || strlen ( $files_json ) == 0 )
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{
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return 'rm: Error: Empty JSON file container';
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}
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$user = getUser();
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$json = json_decode ( $files_json, true );
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$file_found = false;
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for ( $i=0; $i < count ( $json ) && !$file_found; $i++ )
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{
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$path = $json[$i]['path'];
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if ( !$path || strlen ( $path ) == 0 )
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{
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continue;
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}
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if ( $path == $file )
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{
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if ( $json[$i]['type'] != 'file' )
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{
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$file = str_replace ( '<', '<', $file );
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$file = str_replace ( '>', '>', $file );
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return "rm: Could not remove file $file: It is not a regular file\n";
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} else {
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$file_found = true;
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$perms = getPerms ( $path );
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$perms = json_decode ( $perms, true );
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if ( $perms['write'] == false )
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{
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$path = str_replace ( '<', '<', $path );
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$path = str_replace ( '>', '>', $path );
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return "rm: Could not remove file $path: Permission denied\n";
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} else {
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array_splice ( $json, $i, 1 );
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$i--;
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}
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}
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}
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}
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if ( !$file_found )
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{
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$file = str_replace ( '<', '<', $file );
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$file = str_replace ( '>', '>', $file );
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return "rm: Could not remove $file: File not found\n";
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}
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if ( !( $fp = fopen ( "../../system/files_json.php", "w" )))
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{
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return "rm: Unable to write on directories file\n";
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}
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fwrite ( $fp, "<?php\n\n\$files_json = <<<JSON\n".__json_encode ( $json )."\nJSON;\n\n?>");
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fclose ( $fp );
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return "";
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}
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function __mkdir ( $dir, $own_perms )
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{
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include "../../system/files_json.php";
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@ -402,7 +558,7 @@ function __rmdir ( $dir )
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if ( !$files_json || strlen ( $files_json ) == 0 )
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{
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return 'mkdir: Error: Empty JSON file container';
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return 'rmdir: Error: Empty JSON file container';
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}
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$user = getUser();
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@ -450,12 +606,12 @@ function __rmdir ( $dir )
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{
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$dir = str_replace ( '<', '<', $dir );
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$dir = str_replace ( '>', '>', $dir );
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return "mkdir: Could not remove directory $dir: File not found\n";
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return "rmdir: Could not remove directory $dir: File not found\n";
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}
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if ( !( $fp = fopen ( "../../system/files_json.php", "w" )))
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{
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return "mkdir: Unable to write on directories file\n";
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return "rmdir: Unable to write on directories file\n";
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}
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fwrite ( $fp, "<?php\n\n\$files_json = <<<JSON\n".__json_encode ( $json )."\nJSON;\n\n?>");
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@ -219,6 +219,28 @@ switch ( $action )
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print __rmdir ( $dir );
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break;
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case 'touch':
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$file = $_REQUEST['file'];
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if ( !$file )
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{
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return false;
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}
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print __touch ( $file, null );
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break;
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case 'rm':
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$file = $_REQUEST['file'];
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if ( !$file )
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{
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return false;
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}
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print __rm ( $file );
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break;
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default :
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print "Unallowed action\n";
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break;
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@ -66,8 +66,10 @@
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"mkdir",
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"passwd",
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"pwd",
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"rm",
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"rmdir",
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"su",
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"touch",
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"useradd",
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"whoami"
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]
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