commit 315ab3d500964f1d8442135889e1886ca6d90100
parent dd9aea8cbdabc7622446d387ed6ed59e47b79de7
Author: Sergey M․ <dstftw@gmail.com>
Date:   Wed, 11 Apr 2018 01:51:57 +0700

[instagram:user] Simplify signing (#16119)

Diffstat:
Myoutube_dl/extractor/instagram.py | 128++-----------------------------------------------------------------------------
1 file changed, 3 insertions(+), 125 deletions(-)

diff --git a/youtube_dl/extractor/instagram.py b/youtube_dl/extractor/instagram.py @@ -1,17 +1,13 @@ from __future__ import unicode_literals import itertools +import hashlib import json -import os import re -import subprocess -import tempfile from .common import InfoExtractor from ..compat import compat_str from ..utils import ( - check_executable, - ExtractorError, get_element_by_attribute, int_or_none, lowercase_escape, @@ -244,99 +240,6 @@ class InstagramUserIE(InfoExtractor): } } - _SIGN_CODE = ''' -"use strict"; -function i(e, t) { - var r = (65535 & e) + (65535 & t); - return (e >> 16) + (t >> 16) + (r >> 16) << 16 | 65535 & r -} -function a(e, t, r, n, o, a) { - return i((s = i(i(t, e), i(n, a))) << (c = o) | s >>> 32 - c, r); - var s, c -} -function s(e, t, r, n, o, i, s) { - return a(t & r | ~t & n, e, t, o, i, s) -} -function c(e, t, r, n, o, i, s) { - return a(t & n | r & ~n, e, t, o, i, s) -} -function u(e, t, r, n, o, i, s) { - return a(t ^ r ^ n, e, t, o, i, s) -} -function l(e, t, r, n, o, i, s) { - return a(r ^ (t | ~n), e, t, o, i, s) -} -function p(e, t) { - var r, n, o, a, p; - e[t >> 5] |= 128 << t % 32, - e[14 + (t + 64 >>> 9 << 4)] = t; - var d = 1732584193 - , f = -271733879 - , h = -1732584194 - , g = 271733878; - for (r = 0; r < e.length; r += 16) - n = d, - o = f, - a = h, - p = g, - f = l(f = l(f = l(f = l(f = u(f = u(f = u(f = u(f = c(f = c(f = c(f = c(f = s(f = s(f = s(f = s(f, h = s(h, g = s(g, d = s(d, f, h, g, e[r], 7, -680876936), f, h, e[r + 1], 12, -389564586), d, f, e[r + 2], 17, 606105819), g, d, e[r + 3], 22, -1044525330), h = s(h, g = s(g, d = s(d, f, h, g, e[r + 4], 7, -176418897), f, h, e[r + 5], 12, 1200080426), d, f, e[r + 6], 17, -1473231341), g, d, e[r + 7], 22, -45705983), h = s(h, g = s(g, d = s(d, f, h, g, e[r + 8], 7, 1770035416), f, h, e[r + 9], 12, -1958414417), d, f, e[r + 10], 17, -42063), g, d, e[r + 11], 22, -1990404162), h = s(h, g = s(g, d = s(d, f, h, g, e[r + 12], 7, 1804603682), f, h, e[r + 13], 12, -40341101), d, f, e[r + 14], 17, -1502002290), g, d, e[r + 15], 22, 1236535329), h = c(h, g = c(g, d = c(d, f, h, g, e[r + 1], 5, -165796510), f, h, e[r + 6], 9, -1069501632), d, f, e[r + 11], 14, 643717713), g, d, e[r], 20, -373897302), h = c(h, g = c(g, d = c(d, f, h, g, e[r + 5], 5, -701558691), f, h, e[r + 10], 9, 38016083), d, f, e[r + 15], 14, -660478335), g, d, e[r + 4], 20, -405537848), h = c(h, g = c(g, d = c(d, f, h, g, e[r + 9], 5, 568446438), f, h, e[r + 14], 9, -1019803690), d, f, e[r + 3], 14, -187363961), g, d, e[r + 8], 20, 1163531501), h = c(h, g = c(g, d = c(d, f, h, g, e[r + 13], 5, -1444681467), f, h, e[r + 2], 9, -51403784), d, f, e[r + 7], 14, 1735328473), g, d, e[r + 12], 20, -1926607734), h = u(h, g = u(g, d = u(d, f, h, g, e[r + 5], 4, -378558), f, h, e[r + 8], 11, -2022574463), d, f, e[r + 11], 16, 1839030562), g, d, e[r + 14], 23, -35309556), h = u(h, g = u(g, d = u(d, f, h, g, e[r + 1], 4, -1530992060), f, h, e[r + 4], 11, 1272893353), d, f, e[r + 7], 16, -155497632), g, d, e[r + 10], 23, -1094730640), h = u(h, g = u(g, d = u(d, f, h, g, e[r + 13], 4, 681279174), f, h, e[r], 11, -358537222), d, f, e[r + 3], 16, -722521979), g, d, e[r + 6], 23, 76029189), h = u(h, g = u(g, d = u(d, f, h, g, e[r + 9], 4, -640364487), f, h, e[r + 12], 11, -421815835), d, f, e[r + 15], 16, 530742520), g, d, e[r + 2], 23, -995338651), h = l(h, g = l(g, d = l(d, f, h, g, e[r], 6, -198630844), f, h, e[r + 7], 10, 1126891415), d, f, e[r + 14], 15, -1416354905), g, d, e[r + 5], 21, -57434055), h = l(h, g = l(g, d = l(d, f, h, g, e[r + 12], 6, 1700485571), f, h, e[r + 3], 10, -1894986606), d, f, e[r + 10], 15, -1051523), g, d, e[r + 1], 21, -2054922799), h = l(h, g = l(g, d = l(d, f, h, g, e[r + 8], 6, 1873313359), f, h, e[r + 15], 10, -30611744), d, f, e[r + 6], 15, -1560198380), g, d, e[r + 13], 21, 1309151649), h = l(h, g = l(g, d = l(d, f, h, g, e[r + 4], 6, -145523070), f, h, e[r + 11], 10, -1120210379), d, f, e[r + 2], 15, 718787259), g, d, e[r + 9], 21, -343485551), - d = i(d, n), - f = i(f, o), - h = i(h, a), - g = i(g, p); - return [d, f, h, g] -} -function d(e) { - var t, r = "", n = 32 * e.length; - for (t = 0; t < n; t += 8) - r += String.fromCharCode(e[t >> 5] >>> t % 32 & 255); - return r -} -function f(e) { - var t, r = []; - for (r[(e.length >> 2) - 1] = void 0, - t = 0; t < r.length; t += 1) - r[t] = 0; - var n = 8 * e.length; - for (t = 0; t < n; t += 8) - r[t >> 5] |= (255 & e.charCodeAt(t / 8)) << t % 32; - return r -} -function h(e) { - var t, r, n = ""; - for (r = 0; r < e.length; r += 1) - t = e.charCodeAt(r), - n += "0123456789abcdef".charAt(t >>> 4 & 15) + "0123456789abcdef".charAt(15 & t); - return n -} -function g(e) { - return unescape(encodeURIComponent(e)) -} -function b(e) { - return function(e) { - return d(p(f(e), 8 * e.length)) - }(g(e)) -} -function m(e, t) { - return function(e, t) { - var r, n, o = f(e), i = [], a = []; - for (i[15] = a[15] = void 0, - o.length > 16 && (o = p(o, 8 * e.length)), - r = 0; r < 16; r += 1) - i[r] = 909522486 ^ o[r], - a[r] = 1549556828 ^ o[r]; - return n = p(i.concat(f(t)), 512 + 8 * t.length), - d(p(a.concat(n), 640)) - }(g(e), g(t)) -} -function v(e, t, r) { - return t ? r ? m(t, e) : h(m(t, e)) : r ? b(e) : h(b(e)) -} -function sign(s) { - return v(s); -} -''' - def _entries(self, data): def get_count(suffix): return int_or_none(try_get( @@ -348,18 +251,6 @@ function sign(s) { self._set_cookie('instagram.com', 'ig_pr', '1') - def sign(s): - js_code = self._SIGN_CODE + "console.log(sign('%s')); phantom.exit();" % s - with open(self._phantomjs_script.name, 'w') as f: - f.write(js_code) - p = subprocess.Popen( - ['phantomjs', '--ssl-protocol=any', f.name], - stdout=subprocess.PIPE, stderr=subprocess.PIPE) - gis, err = p.communicate() - if p.returncode != 0: - raise ExtractorError('Failed to sign request\n:' + err.decode('utf-8')) - return gis.decode('utf-8').strip() - cursor = '' for page_num in itertools.count(1): variables = json.dumps({ @@ -367,14 +258,12 @@ function sign(s) { 'first': 100, 'after': cursor, }) - gis = sign( - '%s:%s:%s:%s' - % (rhx_gis, csrf_token, std_headers['User-Agent'], variables)) + s = '%s:%s:%s:%s' % (rhx_gis, csrf_token, std_headers['User-Agent'], variables) media = self._download_json( 'https://www.instagram.com/graphql/query/', uploader_id, 'Downloading JSON page %d' % page_num, headers={ 'X-Requested-With': 'XMLHttpRequest', - 'X-Instagram-GIS': gis, + 'X-Instagram-GIS': hashlib.md5(s.encode('utf-8')).hexdigest(), }, query={ 'query_hash': '472f257a40c653c64c666ce877d59d2b', 'variables': variables, @@ -431,17 +320,6 @@ function sign(s) { if not cursor or not isinstance(cursor, compat_str): break - def _real_initialize(self): - if not check_executable('phantomjs', ['-v']): - raise ExtractorError( - 'PhantomJS executable not found in PATH, download it from http://phantomjs.org', - expected=True) - self._phantomjs_script = tempfile.NamedTemporaryFile(delete=False) - self._phantomjs_script.close() - - def __del__(self): - os.unlink(self._phantomjs_script.name) - def _real_extract(self, url): username = self._match_id(url)