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September 2, 2020 12:20
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[tampermonkey] vk image save
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<?php | |
/** | |
* Decode base64 encoded string with '+/=' replaced with '._-'. | |
* @param type $s | |
* @return type | |
*/ | |
function base64Xd($s) { | |
return base64_decode(strtr($s, '._-', '+/=')); | |
} | |
/** | |
* Convert $http_response_header into k=>v map. | |
* @param Array $list | |
* @return Array | |
*/ | |
function mapHeaders($list) { | |
return array_reduce(array_slice($list, 1), function($carry, $item) { | |
list($k, $v) = explode(':', $item, 2); | |
$carry[strtolower($k)] = ltrim($v); | |
return $carry; | |
}, []); | |
} | |
function main() { | |
ini_set('display_errors', 0); | |
if (isset($_GET['url'])) { | |
$url = base64Xd($_GET['url']); | |
if ($url !== false) { | |
$urlParts = parse_url($url); | |
if ($urlParts !== false && ($urlParts['scheme'] === 'http' || $urlParts['scheme'] === 'https')) { | |
$filename = basename($urlParts['path']); | |
if (strlen($filename)) { | |
$response = file_get_contents($url, false, stream_context_create([ | |
'http' => [ | |
'user_agent' => $_SERVER['HTTP_USER_AGENT'], | |
'timeout' => 10, | |
], | |
])); | |
if ($response !== false) { | |
$headers = mapHeaders($http_response_header); | |
if (isset($headers['content-type'])) { | |
header('Content-Type: ' . $headers['content-type']); | |
header("Content-Disposition: attachment; filename*=UTF-8''" . urlencode($filename)); | |
echo $response; | |
} | |
} | |
} | |
} | |
} | |
} | |
} | |
main(); |
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// ==UserScript== | |
// @name vk image save | |
// @namespace http://tampermonkey.net/ | |
// @version 0.8.1 | |
// @downloadURL https://gist.githubusercontent.com/dandelionred/8c6059be4b2fdc55bb990baea8298a67/raw/vk-image-save.user.js | |
// @updateURL https://gist.githubusercontent.com/dandelionred/8c6059be4b2fdc55bb990baea8298a67/raw/vk-image-save.user.js | |
// @match https://m.vk.com/* | |
// ==/UserScript== | |
(function () { | |
'use strict'; | |
let location = null; | |
const html = ` | |
<style> | |
#down-button { | |
position: absolute; | |
bottom: 0; | |
right: 0; | |
z-index: 2; | |
text-align: right; | |
} | |
#down-button a { | |
display: inline-block; | |
line-height: 48px; | |
padding: 0 24px; | |
color: lightgray; | |
font-weight: bold; | |
font-family: monospace; | |
} | |
</style> | |
<div id="down-button"></div> | |
`; | |
function log(s) { | |
console.log("[" + (new Date()).getTime() + "] " + s); | |
} | |
/** | |
* Convert unicode string to utf-8, base64 encode, replace "+/=" with "._-". | |
* @param {String} s | |
* @returns {String} | |
*/ | |
function base64X(s) { | |
const pairs = { | |
"+": ".", | |
"/": "_", | |
"=": "-" | |
}; | |
return window.btoa(unescape(encodeURIComponent(s))).replace(/[+/=]/g, m => pairs[m]); | |
} | |
function main() { | |
const z_photoview = document.getElementById("z_photoview"); | |
if (!z_photoview) { | |
location = null; | |
return; | |
} | |
const img = z_photoview.querySelector("#zpv_center img.zpv_img"); | |
if (!img || img.src === location || img.src.slice(-10) === "/blank.gif") { | |
return; | |
} | |
let downButton = document.getElementById("down-button"); | |
if (!downButton) { | |
z_photoview.querySelector(".zpv_bottom_body").insertAdjacentHTML("beforeend", html); | |
downButton = document.getElementById("down-button"); | |
} | |
location = img.src; | |
if (!downButton.firstChild) { | |
let a = document.createElement("a"); | |
a.innerText = "save"; | |
downButton.appendChild(a); | |
} | |
downButton.firstChild.href = "http://local.download1.net:81/convert.php?url=" + base64X(img.src); | |
} | |
setInterval(main, 500); | |
})(); |
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