From cc317b169fa43ebf9c12b695d51cee88b8551ef4 Mon Sep 17 00:00:00 2001 From: Evan Prodromou Date: Fri, 10 Jul 2009 09:57:38 -0700 Subject: [PATCH] first version of Meteord plugin, doesn't work --- plugins/Meteor/MeteorPlugin.php | 239 ++++++++++++++++ plugins/Meteor/README | 26 ++ plugins/Meteor/json2.js | 478 ++++++++++++++++++++++++++++++++ plugins/Meteor/meteorupdater.js | 151 ++++++++++ 4 files changed, 894 insertions(+) create mode 100644 plugins/Meteor/MeteorPlugin.php create mode 100644 plugins/Meteor/README create mode 100644 plugins/Meteor/json2.js create mode 100644 plugins/Meteor/meteorupdater.js diff --git a/plugins/Meteor/MeteorPlugin.php b/plugins/Meteor/MeteorPlugin.php new file mode 100644 index 0000000000..291c4e3a2a --- /dev/null +++ b/plugins/Meteor/MeteorPlugin.php @@ -0,0 +1,239 @@ +. + * + * @category Plugin + * @package Laconica + * @author Evan Prodromou + * @copyright 2009 Control Yourself, Inc. + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +if (!defined('LACONICA')) { + exit(1); +} + +/** + * Plugin to do realtime updates using Comet + * + * @category Plugin + * @package Laconica + * @author Evan Prodromou + * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0 + * @link http://laconi.ca/ + */ + +class MeteorPlugin extends Plugin +{ + var $webserver = null; + var $webport = null; + var $controlport = null; + var $controlserver = null; + var $channelbase = null; + var $_socket = null; + + function __construct($webserver=null, $webport=4670, $controlport=4671, $controlserver=null, $channelbase='') + { + global $config; + + $this->webserver = (empty($webserver)) ? $config['site']['server'] : $webserver; + $this->webport = $webport; + $this->controlport = $controlport; + $this->controlserver = (empty($controlserver)) ? $webserver : $controlserver; + $this->channelbase = $channelbase; + + parent::__construct(); + } + + function onEndShowScripts($action) + { + $timeline = null; + + $this->log(LOG_DEBUG, 'got action ' . $action->trimmed('action')); + + switch ($action->trimmed('action')) { + case 'public': + $timeline = '/timelines/public'; + break; + case 'tag': + $tag = $action->trimmed('tag'); + if (!empty($tag)) { + $timeline = '/timelines/tag/'.$tag; + } else { + return true; + } + break; + default: + return true; + } + + $action->element('script', array('type' => 'text/javascript', + 'src' => 'http://'.$this->webserver.(($this->webport == 80) ? '':':'.$this->webport).'/meteor.js'), + ' '); + + foreach (array('meteorupdater.js', 'json2.js') as $script) { + $action->element('script', array('type' => 'text/javascript', + 'src' => common_path('plugins/Meteor/'.$script)), + ' '); + } + + $user = common_current_user(); + + if (!empty($user->id)) { + $user_id = $user->id; + } else { + $user_id = 0; + } + + $replyurl = common_local_url('newnotice'); + $favorurl = common_local_url('favor'); + // FIXME: need to find a better way to pass this pattern in + $deleteurl = common_local_url('deletenotice', + array('notice' => '0000000000')); + + $action->elementStart('script', array('type' => 'text/javascript')); + $action->raw("$(document).ready(function() { MeteorUpdater.init(\"$this->webserver\", $this->webport, \"{$this->channelbase}$timeline\", $user_id, \"$replyurl\", \"$favorurl\", \"$deleteurl\"); });"); + $action->elementEnd('script'); + + return true; + } + + function onEndNoticeSave($notice) + { + $this->log(LOG_INFO, "Called for save notice."); + + $timelines = array(); + + // XXX: Add other timelines; this is just for the public one + + if ($notice->is_local || + ($notice->is_local == 0 && !common_config('public', 'localonly'))) { + $timelines[] = '/timelines/public'; + } + + $tags = $this->getNoticeTags($notice); + + if (!empty($tags)) { + foreach ($tags as $tag) { + $timelines[] = '/timelines/tag/' . $tag; + } + } + + if (count($timelines) > 0) { + + $json = json_encode($this->noticeAsJson($notice)); + + $this->log(LOG_DEBUG, $json); + + $this->_connect(); + + foreach ($timelines as $timeline) { + $this->_addMessage($timeline, $json); + } + + $this->_disconnect(); + } + + return true; + } + + function _connect() + { + // May throw an exception. + $this->_socket = @stream_socket_client("tcp://{$this->controlserver}:{$this->controlport}", + $errno, $errstr, $timeout, $conflag); + if (!$this->_socket) { + throw new Exception("Couldn't connect to {$this->controlserver} on {$this->controlport}"); + } + } + + function _addMessage($channel, $message) + { + $cmd = "ADDMESSAGE {$this->channelbase}$channel $message\n"; + $this->log(LOG_DEBUG, $cmd); + @fwrite($this->_socket, "COMMAND: $cmd"); + $result = fgets($this->_socket); + $this->log(LOG_DEBUG, "RESULT: $result"); + // TODO: parse and deal with result + } + + function _disconnect() + { + @fclose($this->_socket); + } + + function noticeAsJson($notice) + { + // FIXME: this code should be abstracted to a neutral third + // party, like Notice::asJson(). I'm not sure of the ethics + // of refactoring from within a plugin, so I'm just abusing + // the TwitterApiAction method. Don't do this unless you're me! + + require_once(INSTALLDIR.'/lib/twitterapi.php'); + + $act = new TwitterApiAction('/dev/null'); + + $arr = $act->twitter_status_array($notice, true); + $arr['url'] = $notice->bestUrl(); + $arr['html'] = htmlspecialchars($notice->rendered); + $arr['source'] = htmlspecialchars($arr['source']); + + if (!empty($notice->reply_to)) { + $reply_to = Notice::staticGet('id', $notice->reply_to); + if (!empty($reply_to)) { + $arr['in_reply_to_status_url'] = $reply_to->bestUrl(); + } + $reply_to = null; + } + + $profile = $notice->getProfile(); + $arr['user']['profile_url'] = $profile->profileurl; + + return $arr; + } + + function getNoticeTags($notice) + { + $tags = null; + + $nt = new Notice_tag(); + $nt->notice_id = $notice->id; + + if ($nt->find()) { + $tags = array(); + while ($nt->fetch()) { + $tags[] = $nt->tag; + } + } + + $nt->free(); + $nt = null; + + return $tags; + } + + // Push this up to Plugin + + function log($level, $msg) + { + common_log($level, get_class($this) . ': '.$msg); + } +} diff --git a/plugins/Meteor/README b/plugins/Meteor/README new file mode 100644 index 0000000000..4abd40af7a --- /dev/null +++ b/plugins/Meteor/README @@ -0,0 +1,26 @@ +This is a plugin to automatically load notices in the browser no +matter who creates them -- the kind of thing we see with +search.twitter.com, rejaw.com, or FriendFeed's "real time" news. + +NOTE: this is an insecure version; don't roll it out on a production +server. + +It requires a cometd server. I've only had the cometd-java server work +correctly; something's wiggy with the Twisted-based server. + +After you have a cometd server installed, just add this code to your +config.php: + + require_once(INSTALLDIR.'/plugins/Comet/CometPlugin.php'); + $cp = new CometPlugin('http://example.com:8080/cometd/'); + +Change 'example.com:8080' to the name and port of the server you +installed cometd on. + +TODO: + +* Needs to be tested with Ajax submission. Probably messes everything + up. +* Add more timelines: personal inbox and tags would be great. +* Add security. In particular, only let the PHP code publish notices + to the cometd server. Currently, it doesn't try to authenticate. diff --git a/plugins/Meteor/json2.js b/plugins/Meteor/json2.js new file mode 100644 index 0000000000..7e27df5181 --- /dev/null +++ b/plugins/Meteor/json2.js @@ -0,0 +1,478 @@ +/* + http://www.JSON.org/json2.js + 2009-04-16 + + Public Domain. + + NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK. + + See http://www.JSON.org/js.html + + This file creates a global JSON object containing two methods: stringify + and parse. + + JSON.stringify(value, replacer, space) + value any JavaScript value, usually an object or array. + + replacer an optional parameter that determines how object + values are stringified for objects. It can be a + function or an array of strings. + + space an optional parameter that specifies the indentation + of nested structures. If it is omitted, the text will + be packed without extra whitespace. If it is a number, + it will specify the number of spaces to indent at each + level. If it is a string (such as '\t' or ' '), + it contains the characters used to indent at each level. + + This method produces a JSON text from a JavaScript value. + + When an object value is found, if the object contains a toJSON + method, its toJSON method will be called and the result will be + stringified. A toJSON method does not serialize: it returns the + value represented by the name/value pair that should be serialized, + or undefined if nothing should be serialized. The toJSON method + will be passed the key associated with the value, and this will be + bound to the object holding the key. + + For example, this would serialize Dates as ISO strings. + + Date.prototype.toJSON = function (key) { + function f(n) { + // Format integers to have at least two digits. + return n < 10 ? '0' + n : n; + } + + return this.getUTCFullYear() + '-' + + f(this.getUTCMonth() + 1) + '-' + + f(this.getUTCDate()) + 'T' + + f(this.getUTCHours()) + ':' + + f(this.getUTCMinutes()) + ':' + + f(this.getUTCSeconds()) + 'Z'; + }; + + You can provide an optional replacer method. It will be passed the + key and value of each member, with this bound to the containing + object. The value that is returned from your method will be + serialized. If your method returns undefined, then the member will + be excluded from the serialization. + + If the replacer parameter is an array of strings, then it will be + used to select the members to be serialized. It filters the results + such that only members with keys listed in the replacer array are + stringified. + + Values that do not have JSON representations, such as undefined or + functions, will not be serialized. Such values in objects will be + dropped; in arrays they will be replaced with null. You can use + a replacer function to replace those with JSON values. + JSON.stringify(undefined) returns undefined. + + The optional space parameter produces a stringification of the + value that is filled with line breaks and indentation to make it + easier to read. + + If the space parameter is a non-empty string, then that string will + be used for indentation. If the space parameter is a number, then + the indentation will be that many spaces. + + Example: + + text = JSON.stringify(['e', {pluribus: 'unum'}]); + // text is '["e",{"pluribus":"unum"}]' + + + text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t'); + // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]' + + text = JSON.stringify([new Date()], function (key, value) { + return this[key] instanceof Date ? + 'Date(' + this[key] + ')' : value; + }); + // text is '["Date(---current time---)"]' + + + JSON.parse(text, reviver) + This method parses a JSON text to produce an object or array. + It can throw a SyntaxError exception. + + The optional reviver parameter is a function that can filter and + transform the results. It receives each of the keys and values, + and its return value is used instead of the original value. + If it returns what it received, then the structure is not modified. + If it returns undefined then the member is deleted. + + Example: + + // Parse the text. Values that look like ISO date strings will + // be converted to Date objects. + + myData = JSON.parse(text, function (key, value) { + var a; + if (typeof value === 'string') { + a = +/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value); + if (a) { + return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4], + +a[5], +a[6])); + } + } + return value; + }); + + myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) { + var d; + if (typeof value === 'string' && + value.slice(0, 5) === 'Date(' && + value.slice(-1) === ')') { + d = new Date(value.slice(5, -1)); + if (d) { + return d; + } + } + return value; + }); + + + This is a reference implementation. You are free to copy, modify, or + redistribute. + + This code should be minified before deployment. + See http://javascript.crockford.com/jsmin.html + + USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO + NOT CONTROL. +*/ + +/*jslint evil: true */ + +/*global JSON */ + +/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply, + call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours, + getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join, + lastIndex, length, parse, prototype, push, replace, slice, stringify, + test, toJSON, toString, valueOf +*/ + +// Create a JSON object only if one does not already exist. We create the +// methods in a closure to avoid creating global variables. + +if (!this.JSON) { + JSON = {}; +} +(function () { + + function f(n) { + // Format integers to have at least two digits. + return n < 10 ? '0' + n : n; + } + + if (typeof Date.prototype.toJSON !== 'function') { + + Date.prototype.toJSON = function (key) { + + return this.getUTCFullYear() + '-' + + f(this.getUTCMonth() + 1) + '-' + + f(this.getUTCDate()) + 'T' + + f(this.getUTCHours()) + ':' + + f(this.getUTCMinutes()) + ':' + + f(this.getUTCSeconds()) + 'Z'; + }; + + String.prototype.toJSON = + Number.prototype.toJSON = + Boolean.prototype.toJSON = function (key) { + return this.valueOf(); + }; + } + + var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, + escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g, + gap, + indent, + meta = { // table of character substitutions + '\b': '\\b', + '\t': '\\t', + '\n': '\\n', + '\f': '\\f', + '\r': '\\r', + '"' : '\\"', + '\\': '\\\\' + }, + rep; + + + function quote(string) { + +// If the string contains no control characters, no quote characters, and no +// backslash characters, then we can safely slap some quotes around it. +// Otherwise we must also replace the offending characters with safe escape +// sequences. + + escapable.lastIndex = 0; + return escapable.test(string) ? + '"' + string.replace(escapable, function (a) { + var c = meta[a]; + return typeof c === 'string' ? c : + '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); + }) + '"' : + '"' + string + '"'; + } + + + function str(key, holder) { + +// Produce a string from holder[key]. + + var i, // The loop counter. + k, // The member key. + v, // The member value. + length, + mind = gap, + partial, + value = holder[key]; + +// If the value has a toJSON method, call it to obtain a replacement value. + + if (value && typeof value === 'object' && + typeof value.toJSON === 'function') { + value = value.toJSON(key); + } + +// If we were called with a replacer function, then call the replacer to +// obtain a replacement value. + + if (typeof rep === 'function') { + value = rep.call(holder, key, value); + } + +// What happens next depends on the value's type. + + switch (typeof value) { + case 'string': + return quote(value); + + case 'number': + +// JSON numbers must be finite. Encode non-finite numbers as null. + + return isFinite(value) ? String(value) : 'null'; + + case 'boolean': + case 'null': + +// If the value is a boolean or null, convert it to a string. Note: +// typeof null does not produce 'null'. The case is included here in +// the remote chance that this gets fixed someday. + + return String(value); + +// If the type is 'object', we might be dealing with an object or an array or +// null. + + case 'object': + +// Due to a specification blunder in ECMAScript, typeof null is 'object', +// so watch out for that case. + + if (!value) { + return 'null'; + } + +// Make an array to hold the partial results of stringifying this object value. + + gap += indent; + partial = []; + +// Is the value an array? + + if (Object.prototype.toString.apply(value) === '[object Array]') { + +// The value is an array. Stringify every element. Use null as a placeholder +// for non-JSON values. + + length = value.length; + for (i = 0; i < length; i += 1) { + partial[i] = str(i, value) || 'null'; + } + +// Join all of the elements together, separated with commas, and wrap them in +// brackets. + + v = partial.length === 0 ? '[]' : + gap ? '[\n' + gap + + partial.join(',\n' + gap) + '\n' + + mind + ']' : + '[' + partial.join(',') + ']'; + gap = mind; + return v; + } + +// If the replacer is an array, use it to select the members to be stringified. + + if (rep && typeof rep === 'object') { + length = rep.length; + for (i = 0; i < length; i += 1) { + k = rep[i]; + if (typeof k === 'string') { + v = str(k, value); + if (v) { + partial.push(quote(k) + (gap ? ': ' : ':') + v); + } + } + } + } else { + +// Otherwise, iterate through all of the keys in the object. + + for (k in value) { + if (Object.hasOwnProperty.call(value, k)) { + v = str(k, value); + if (v) { + partial.push(quote(k) + (gap ? ': ' : ':') + v); + } + } + } + } + +// Join all of the member texts together, separated with commas, +// and wrap them in braces. + + v = partial.length === 0 ? '{}' : + gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' + + mind + '}' : '{' + partial.join(',') + '}'; + gap = mind; + return v; + } + } + +// If the JSON object does not yet have a stringify method, give it one. + + if (typeof JSON.stringify !== 'function') { + JSON.stringify = function (value, replacer, space) { + +// The stringify method takes a value and an optional replacer, and an optional +// space parameter, and returns a JSON text. The replacer can be a function +// that can replace values, or an array of strings that will select the keys. +// A default replacer method can be provided. Use of the space parameter can +// produce text that is more easily readable. + + var i; + gap = ''; + indent = ''; + +// If the space parameter is a number, make an indent string containing that +// many spaces. + + if (typeof space === 'number') { + for (i = 0; i < space; i += 1) { + indent += ' '; + } + +// If the space parameter is a string, it will be used as the indent string. + + } else if (typeof space === 'string') { + indent = space; + } + +// If there is a replacer, it must be a function or an array. +// Otherwise, throw an error. + + rep = replacer; + if (replacer && typeof replacer !== 'function' && + (typeof replacer !== 'object' || + typeof replacer.length !== 'number')) { + throw new Error('JSON.stringify'); + } + +// Make a fake root object containing our value under the key of ''. +// Return the result of stringifying the value. + + return str('', {'': value}); + }; + } + + +// If the JSON object does not yet have a parse method, give it one. + + if (typeof JSON.parse !== 'function') { + JSON.parse = function (text, reviver) { + +// The parse method takes a text and an optional reviver function, and returns +// a JavaScript value if the text is a valid JSON text. + + var j; + + function walk(holder, key) { + +// The walk method is used to recursively walk the resulting structure so +// that modifications can be made. + + var k, v, value = holder[key]; + if (value && typeof value === 'object') { + for (k in value) { + if (Object.hasOwnProperty.call(value, k)) { + v = walk(value, k); + if (v !== undefined) { + value[k] = v; + } else { + delete value[k]; + } + } + } + } + return reviver.call(holder, key, value); + } + + +// Parsing happens in four stages. In the first stage, we replace certain +// Unicode characters with escape sequences. JavaScript handles many characters +// incorrectly, either silently deleting them, or treating them as line endings. + + cx.lastIndex = 0; + if (cx.test(text)) { + text = text.replace(cx, function (a) { + return '\\u' + + ('0000' + a.charCodeAt(0).toString(16)).slice(-4); + }); + } + +// In the second stage, we run the text against regular expressions that look +// for non-JSON patterns. We are especially concerned with '()' and 'new' +// because they can cause invocation, and '=' because it can cause mutation. +// But just to be safe, we want to reject all unexpected forms. + +// We split the second stage into 4 regexp operations in order to work around +// crippling inefficiencies in IE's and Safari's regexp engines. First we +// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we +// replace all simple value tokens with ']' characters. Third, we delete all +// open brackets that follow a colon or comma or that begin the text. Finally, +// we look to see that the remaining characters are only whitespace or ']' or +// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval. + + if (/^[\],:{}\s]*$/. +test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@'). +replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']'). +replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) { + +// In the third stage we use the eval function to compile the text into a +// JavaScript structure. The '{' operator is subject to a syntactic ambiguity +// in JavaScript: it can begin a block or an object literal. We wrap the text +// in parens to eliminate the ambiguity. + + j = eval('(' + text + ')'); + +// In the optional fourth stage, we recursively walk the new structure, passing +// each name/value pair to a reviver function for possible transformation. + + return typeof reviver === 'function' ? + walk({'': j}, '') : j; + } + +// If the text is not JSON parseable, then a SyntaxError is thrown. + + throw new SyntaxError('JSON.parse'); + }; + } +}()); diff --git a/plugins/Meteor/meteorupdater.js b/plugins/Meteor/meteorupdater.js new file mode 100644 index 0000000000..ffbd28434d --- /dev/null +++ b/plugins/Meteor/meteorupdater.js @@ -0,0 +1,151 @@ +// update the local timeline from a Meteor server +// + +var MeteorUpdater = function() +{ + var _server; + var _port; + var _timeline; + var _userid; + var _replyurl; + var _favorurl; + var _deleteurl; + + return { + init: function(server, port, timeline, userid, replyurl, favorurl, deleteurl) + { + _userid = userid; + _replyurl = replyurl; + _favorurl = favorurl; + _deleteurl = deleteurl; + + Meteor.callbacks["process"] = function(data) { + receive(JSON.parse(data)); + }; + + Meteor.host = server; + Meteor.port = port; + Meteor.joinChannel(timeline, 0); + Meteor.connect(); + } + } + + function receive(message) + { + id = message.data.id; + + // Don't add it if it already exists + + if ($("#notice-"+id).length > 0) { + return; + } + + var noticeItem = makeNoticeItem(message.data); + $("#notices_primary .notices").prepend(noticeItem, true); + $("#notices_primary .notice:first").css({display:"none"}); + $("#notices_primary .notice:first").fadeIn(1000); + NoticeHover(); + NoticeReply(); + } + + function makeNoticeItem(data) + { + user = data['user']; + html = data['html'].replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>').replace(/"/g,'"'); + source = data['source'].replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>').replace(/"/g,'"'); + + ni = "
  • "+ + "
    "+ + ""+ + ""+ + "\""+user['screen_name']+"\"/"+ + ""+user['screen_name']+""+ + ""+ + ""+ + "

    "+html+"

    "+ + "
    "+ + "
    "+ + "
    "+ + "
    Published
    "+ + "
    "+ + ""+ + "a few seconds ago"+ + " "+ + "
    "+ + "
    "+ + "
    "+ + "
    From
    "+ + "
    "+source+"
    "+ // may have a link, I think + "
    "; + + if (data['in_reply_to_status_id']) { + ni = ni+"
    "+ + "
    To
    "+ + "
    "+ + "in reply to"+ + "
    "+ + "
    "; + } + + ni = ni+"
    "+ + "
    "; + + if (_userid != 0) { + var input = $("form#form_notice fieldset input#token"); + var session_key = input.val(); + ni = ni+makeFavoriteForm(data['id'], session_key); + ni = ni+makeReplyLink(data['id'], data['user']['screen_name']); + if (_userid == data['user']['id']) { + ni = ni+makeDeleteLink(data['id']); + } + } + + ni = ni+"
    "+ + "
    • "; + return ni; + } + + function makeFavoriteForm(id, session_key) + { + var ff; + + ff = "
    "+ + "
    "+ + "Favor this notice"+ // XXX: i18n + ""+ + ""+ + ""+ + "
    "+ + "
    "; + return ff; + } + + function makeReplyLink(id, nickname) + { + var rl; + rl = "
    "+ + "
    Reply to this notice
    "+ + "
    "+ + "Reply "+id+""+ + ""+ + "
    "+ + "
    "; + return rl; + } + + function makeDeleteLink(id) + { + var dl, delurl; + delurl = _deleteurl.replace("0000000000", id); + + dl = "
    "+ + "
    Delete this notice
    "+ + "
    "+ + "Delete"+ + "
    "+ + "
    "; + + return dl; + } +}(); +