API:Undelete

action=undelete

Undelete revisions of a deleted page.

A list of deleted revisions (including timestamps) can be retrieved through prop=deletedrevisions, and a list of deleted file IDs can be retrieved through list=filearchive.

{
"undelete":{
"fileversions":0,
"reason":"Test undeleting via the API",
"revisions":2,
"title":"Sandbox/Test"
}
}

Python

#!/usr/bin/python3
"""
 undelete.py
 MediaWiki API Demos
 Demo of `Undelete` module: Restore two revisions of a deleted page
 MIT License
"""
importrequests
S = requests.Session()
URL = "https://test.wikipedia.org/w/api.php"
# Step 1: Retrieve a login token
PARAMS_1 = {
 "action": "query",
 "meta": "tokens",
 "type": "login",
 "format": "json"
}
R = S.get(url=URL, params=PARAMS_1)
DATA = R.json()
LOGIN_TOKEN = DATA['query']['tokens']['logintoken']
# Step 2: Send a post request to login.
# Obtain credentials for lgname & lgpassword via Special:BotPasswords
# (https://www.mediawiki.org/wiki/Special:BotPasswords)
PARAMS_2 = {
 "action": "login",
 "lgname": "username",
 "lgpassword": "password",
 "lgtoken": LOGIN_TOKEN,
 "format": "json"
}
R = S.post(URL, data=PARAMS_2)
# Step 3: While logged in, get an CSRF token
PARAMS_3 = {
 "action": "query",
 "meta": "tokens",
 "format": "json"
}
R = S.get(url=URL, params=PARAMS_3)
DATA = R.json()
CSRF_TOKEN = DATA["query"]["tokens"]["csrftoken"]
# Step 4: Send a post request to restore two revisions of a deleted page
PARAMS_4 = {
 "action": "undelete",
 "format": "json",
 "token": CSRF_TOKEN,
 "title": "Sandbox/Test",
 "timestamps":"20190605072148|20190605074313",
 "reason": "Test undeleting via the API"
}
R = S.post(URL, data=PARAMS_4)
DATA = R.json()
print(DATA)

PHP

<?php
/*
 undelete.php
 MediaWiki API Demos
 Demo of `Undelete` module: Restore two revisions of a deleted page
 MIT license
*/
$endPoint = "http://dev.wiki.local.wmftest.net:8080/w/api.php";
$login_Token = getLoginToken(); // Step 1
loginRequest( $login_Token ); // Step 2
$csrf_Token = getCSRFToken(); // Step 3
undelete( $csrf_Token ); // Step 4
// Step 1: GET request to fetch login token
function getLoginToken() {
	global $endPoint;
	$params1 = [
		"action" => "query",
		"meta" => "tokens",
		"type" => "login",
		"format" => "json"
	];
	$url = $endPoint . "?" . http_build_query( $params1 );
	$ch = curl_init( $url );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );
	$output = curl_exec( $ch );
	curl_close( $ch );
	$result = json_decode( $output, true );
	return $result["query"]["tokens"]["logintoken"];
}
// Step 2: POST request to log in. Use of main account for login is not
// supported. Obtain credentials via Special:BotPasswords
// (https://www.mediawiki.org/wiki/Special:BotPasswords) for lgname & lgpassword
function loginRequest( $logintoken ) {
	global $endPoint;
	$params2 = [
		"action" => "login",
		"lgname" => "bot_user_name",
		"lgpassword" => "bot_password",
		"lgtoken" => $logintoken,
		"format" => "json"
	];
	$ch = curl_init();
	curl_setopt( $ch, CURLOPT_URL, $endPoint );
	curl_setopt( $ch, CURLOPT_POST, true );
	curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query( $params2 ) );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );
	$output = curl_exec( $ch );
	curl_close( $ch );
}
// Step 3: GET request to fetch CSRF token
function getCSRFToken() {
	global $endPoint;
	$params3 = [
		"action" => "query",
		"meta" => "tokens",
		"format" => "json"
	];
	$url = $endPoint . "?" . http_build_query( $params3 );
	$ch = curl_init( $url );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );
	$output = curl_exec( $ch );
	curl_close( $ch );
	$result = json_decode( $output, true );
	return $result["query"]["tokens"]["csrftoken"];
}
// Step 4: POST request to restore the deleted page
function undelete( $csrftoken ) {
	global $endPoint;
	$params4 = [
		"action" => "undelete",
		"title" => "Sandbox",
		"reason" => "Test undeleting via the API",
		"token" => $csrftoken,
		"format" => "json"
	];
	$ch = curl_init();
	curl_setopt( $ch, CURLOPT_URL, $endPoint );
	curl_setopt( $ch, CURLOPT_POST, true );
	curl_setopt( $ch, CURLOPT_POSTFIELDS, http_build_query( $params4 ) );
	curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
	curl_setopt( $ch, CURLOPT_COOKIEJAR, "cookie.txt" );
	curl_setopt( $ch, CURLOPT_COOKIEFILE, "cookie.txt" );
	$output = curl_exec( $ch );
	curl_close( $ch );
	echo ( $output );
}

JavaScript

/* 
 undelete.js

 MediaWiki API Demos
 Demo of `Undelete` module: Restore two revisions of a deleted page
 MIT license
*/
varrequest=require('request').defaults({jar:true}),
url="http://dev.wiki.local.wmftest.net:8080/w/api.php";
// Step 1: GET request to fetch login token
functiongetLoginToken(){
varparams_0={
action:"query",
meta:"tokens",
type:"login",
format:"json"
};
request.get({url:url,qs:params_0},function(error,res,body){
if(error){
return;
}
vardata=JSON.parse(body);
loginRequest(data.query.tokens.logintoken);
});
}
// Step 2: POST request to log in. 
// Use of main account for login is not
// supported. Obtain credentials via Special:BotPasswords
// (https://www.mediawiki.org/wiki/Special:BotPasswords) for lgname & lgpassword
functionloginRequest(login_token){
varparams_1={
action:"login",
lgname:"bot_username",
lgpassword:"bot_password",
lgtoken:login_token,
format:"json"
};
request.post({url:url,form:params_1},function(error,res,body){
if(error){
return;
}
getCsrfToken();
});
}
// Step 3: GET request to fetch CSRF token
functiongetCsrfToken(){
varparams_2={
action:"query",
meta:"tokens",
format:"json"
};
request.get({url:url,qs:params_2},function(error,res,body){
if(error){
return;
}
vardata=JSON.parse(body);
editRequest(data.query.tokens.csrftoken);
});
}
// Step 4: POST request to restore the deleted page
functioneditRequest(csrf_token){
varparams_3={
action:"undelete",
title:"Sandbox",
reason:"Test undeleting via the API",
token:csrf_token,
format:"json"
};
request.post({url:url,form:params_3},function(error,res,body){
if(error){
return;
}
console.log(body);
});
}
// Start From Step 1
getLoginToken();

MediaWiki JS

/*
	undelete.js
	MediaWiki API Demos
	Demo of `Undelete` module: Restore two revisions of a deleted page
	MIT License
*/
varparams={
action:'undelete',
title:'Sandbox',
reason:'Test undeleting via the API',
format:'json'
},
api=newmw.Api();
api.postWithToken('csrf',params).done(function(data){
console.log(data);
});