Media_RPA/media_platform/xhs/help.py

288 lines
8.2 KiB
Python
Raw Normal View History

2024-07-15 08:33:05 +00:00
import ctypes
import json
import random
import time
import urllib.parse
def sign(a1="", b1="", x_s="", x_t=""):
"""
takes in a URI (uniform resource identifier), an optional data dictionary, and an optional ctime parameter. It returns a dictionary containing two keys: "x-s" and "x-t".
"""
common = {
"s0": 5, # getPlatformCode
"s1": "",
"x0": "1", # localStorage.getItem("b1b1")
"x1": "3.3.0", # version
"x2": "Windows",
"x3": "xhs-pc-web",
"x4": "1.4.4",
"x5": a1, # cookie of a1
"x6": x_t,
"x7": x_s,
"x8": b1, # localStorage.getItem("b1")
"x9": mrc(x_t + x_s + b1),
"x10": 1, # getSigCount
}
encode_str = encodeUtf8(json.dumps(common, separators=(',', ':')))
x_s_common = b64Encode(encode_str)
x_b3_traceid = get_b3_trace_id()
return {
"x-s": x_s,
"x-t": x_t,
"x-s-common": x_s_common,
"x-b3-traceid": x_b3_traceid
}
def get_b3_trace_id():
re = "abcdef0123456789"
je = 16
e = ""
for t in range(16):
e += re[random.randint(0, je - 1)]
return e
def mrc(e):
ie = [
0, 1996959894, 3993919788, 2567524794, 124634137, 1886057615, 3915621685,
2657392035, 249268274, 2044508324, 3772115230, 2547177864, 162941995,
2125561021, 3887607047, 2428444049, 498536548, 1789927666, 4089016648,
2227061214, 450548861, 1843258603, 4107580753, 2211677639, 325883990,
1684777152, 4251122042, 2321926636, 335633487, 1661365465, 4195302755,
2366115317, 997073096, 1281953886, 3579855332, 2724688242, 1006888145,
1258607687, 3524101629, 2768942443, 901097722, 1119000684, 3686517206,
2898065728, 853044451, 1172266101, 3705015759, 2882616665, 651767980,
1373503546, 3369554304, 3218104598, 565507253, 1454621731, 3485111705,
3099436303, 671266974, 1594198024, 3322730930, 2970347812, 795835527,
1483230225, 3244367275, 3060149565, 1994146192, 31158534, 2563907772,
4023717930, 1907459465, 112637215, 2680153253, 3904427059, 2013776290,
251722036, 2517215374, 3775830040, 2137656763, 141376813, 2439277719,
3865271297, 1802195444, 476864866, 2238001368, 4066508878, 1812370925,
453092731, 2181625025, 4111451223, 1706088902, 314042704, 2344532202,
4240017532, 1658658271, 366619977, 2362670323, 4224994405, 1303535960,
984961486, 2747007092, 3569037538, 1256170817, 1037604311, 2765210733,
3554079995, 1131014506, 879679996, 2909243462, 3663771856, 1141124467,
855842277, 2852801631, 3708648649, 1342533948, 654459306, 3188396048,
3373015174, 1466479909, 544179635, 3110523913, 3462522015, 1591671054,
702138776, 2966460450, 3352799412, 1504918807, 783551873, 3082640443,
3233442989, 3988292384, 2596254646, 62317068, 1957810842, 3939845945,
2647816111, 81470997, 1943803523, 3814918930, 2489596804, 225274430,
2053790376, 3826175755, 2466906013, 167816743, 2097651377, 4027552580,
2265490386, 503444072, 1762050814, 4150417245, 2154129355, 426522225,
1852507879, 4275313526, 2312317920, 282753626, 1742555852, 4189708143,
2394877945, 397917763, 1622183637, 3604390888, 2714866558, 953729732,
1340076626, 3518719985, 2797360999, 1068828381, 1219638859, 3624741850,
2936675148, 906185462, 1090812512, 3747672003, 2825379669, 829329135,
1181335161, 3412177804, 3160834842, 628085408, 1382605366, 3423369109,
3138078467, 570562233, 1426400815, 3317316542, 2998733608, 733239954,
1555261956, 3268935591, 3050360625, 752459403, 1541320221, 2607071920,
3965973030, 1969922972, 40735498, 2617837225, 3943577151, 1913087877,
83908371, 2512341634, 3803740692, 2075208622, 213261112, 2463272603,
3855990285, 2094854071, 198958881, 2262029012, 4057260610, 1759359992,
534414190, 2176718541, 4139329115, 1873836001, 414664567, 2282248934,
4279200368, 1711684554, 285281116, 2405801727, 4167216745, 1634467795,
376229701, 2685067896, 3608007406, 1308918612, 956543938, 2808555105,
3495958263, 1231636301, 1047427035, 2932959818, 3654703836, 1088359270,
936918000, 2847714899, 3736837829, 1202900863, 817233897, 3183342108,
3401237130, 1404277552, 615818150, 3134207493, 3453421203, 1423857449,
601450431, 3009837614, 3294710456, 1567103746, 711928724, 3020668471,
3272380065, 1510334235, 755167117,
]
o = -1
def right_without_sign(num: int, bit: int=0) -> int:
val = ctypes.c_uint32(num).value >> bit
MAX32INT = 4294967295
return (val + (MAX32INT + 1)) % (2 * (MAX32INT + 1)) - MAX32INT - 1
for n in range(57):
o = ie[(o & 255) ^ ord(e[n])] ^ right_without_sign(o, 8)
return o ^ -1 ^ 3988292384
lookup = [
"Z",
"m",
"s",
"e",
"r",
"b",
"B",
"o",
"H",
"Q",
"t",
"N",
"P",
"+",
"w",
"O",
"c",
"z",
"a",
"/",
"L",
"p",
"n",
"g",
"G",
"8",
"y",
"J",
"q",
"4",
"2",
"K",
"W",
"Y",
"j",
"0",
"D",
"S",
"f",
"d",
"i",
"k",
"x",
"3",
"V",
"T",
"1",
"6",
"I",
"l",
"U",
"A",
"F",
"M",
"9",
"7",
"h",
"E",
"C",
"v",
"u",
"R",
"X",
"5",
]
def tripletToBase64(e):
return (
lookup[63 & (e >> 18)] +
lookup[63 & (e >> 12)] +
lookup[(e >> 6) & 63] +
lookup[e & 63]
)
def encodeChunk(e, t, r):
m = []
for b in range(t, r, 3):
n = (16711680 & (e[b] << 16)) + \
((e[b + 1] << 8) & 65280) + (e[b + 2] & 255)
m.append(tripletToBase64(n))
return ''.join(m)
def b64Encode(e):
P = len(e)
W = P % 3
U = []
z = 16383
H = 0
Z = P - W
while H < Z:
U.append(encodeChunk(e, H, Z if H + z > Z else H + z))
H += z
if 1 == W:
F = e[P - 1]
U.append(lookup[F >> 2] + lookup[(F << 4) & 63] + "==")
elif 2 == W:
F = (e[P - 2] << 8) + e[P - 1]
U.append(lookup[F >> 10] + lookup[63 & (F >> 4)] +
lookup[(F << 2) & 63] + "=")
return "".join(U)
def encodeUtf8(e):
b = []
m = urllib.parse.quote(e, safe='~()*!.\'')
w = 0
while w < len(m):
T = m[w]
if T == "%":
E = m[w + 1] + m[w + 2]
S = int(E, 16)
b.append(S)
w += 2
else:
b.append(ord(T[0]))
w += 1
return b
def base36encode(number, alphabet='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'):
"""Converts an integer to a base36 string."""
if not isinstance(number, int):
raise TypeError('number must be an integer')
base36 = ''
sign = ''
if number < 0:
sign = '-'
number = -number
if 0 <= number < len(alphabet):
return sign + alphabet[number]
while number != 0:
number, i = divmod(number, len(alphabet))
base36 = alphabet[i] + base36
return sign + base36
def base36decode(number):
return int(number, 36)
def get_search_id():
e = int(time.time() * 1000) << 64
t = int(random.uniform(0, 2147483646))
return base36encode((e + t))
img_cdns = [
"https://sns-img-qc.xhscdn.com",
"https://sns-img-hw.xhscdn.com",
"https://sns-img-bd.xhscdn.com",
"https://sns-img-qn.xhscdn.com",
]
def get_img_url_by_trace_id(trace_id: str, format_type: str = "png"):
return f"{random.choice(img_cdns)}/{trace_id}?imageView2/format/{format_type}"
def get_img_urls_by_trace_id(trace_id: str, format_type: str = "png"):
return [f"{cdn}/{trace_id}?imageView2/format/{format_type}" for cdn in img_cdns]
def get_trace_id(img_url: str):
# 浏览器端上传的图片多了 /spectrum/ 这个路径
return f"spectrum/{img_url.split('/')[-1]}" if img_url.find("spectrum") != -1 else img_url.split("/")[-1]
if __name__ == '__main__':
_img_url = "https://sns-img-bd.xhscdn.com/7a3abfaf-90c1-a828-5de7-022c80b92aa3"
# 获取一个图片地址在多个cdn下的url地址
# final_img_urls = get_img_urls_by_trace_id(get_trace_id(_img_url))
final_img_url = get_img_url_by_trace_id(get_trace_id(_img_url))
print(final_img_url)